Abstract

Some embodiments of the disclosure provide a method for controlling an air conditioner, and an air conditioner. The method for controlling an air conditioner includes: controlling the air conditioner to enter a defrosting mode; acquiring a current frequency Factual of a compressor of the air conditioner and a current opening P of an electronic expansion valve of the air conditioner in the defrosting mode; controlling the air conditioner to enter a first defrosting stage and operate in the first defrosting stage for first preset duration; and controlling the compressor to operate at a first frequency F1 and the electronic expansion valve to operate at a first opening P1 when the air conditioner is in the first defrosting stage.

IPC Classes  ?

• F24F 11/42 - DefrostingPreventing freezing of outdoor units
• F24F 11/61 - Control or safety arrangements characterised by user interfaces or communication using timers
• F24F 11/64 - Electronic processing using pre-stored data
• F24F 11/84 - Control systems characterised by their outputsConstructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
• F24F 11/86 - Control systems characterised by their outputsConstructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
• F24F 110/10 - Temperature
• F24F 140/20 - Heat-exchange fluid temperature

Abstract

A cabinet air conditioner indoor unit and a control method. The cabinet air conditioner indoor unit comprises a housing (1) and an air channel assembly; the housing (1) defines a housing cavity (17); an upper front air port (151) and an upper rear air port (152) are formed in the upper portion of the housing (1); a lower front air port (111) and a lower rear air port (141) are formed in the lower portion of the housing (1); the air channel assembly is provided with an upper air channel (24), a power fan blade cavity and a lower air channel (25) which are sequentially arranged; the upper air channel (24) is in communication with the upper front air port (151), the lower air channel (25) is in communication with the lower front air port (111), and the power fan blade cavity is in communication with the housing cavity (17); when the upper air channel (24) is in communication with the power fan blade cavity and the lower air channel (25) is in communication with the housing cavity (17), an upper air outlet main flow path where air enters from the lower front air port (111) and is discharged from the upper front air port (151) is formed in the cabinet air conditioner indoor unit; when the upper air channel (24) is in communication with the housing cavity (17) and the lower air channel (25) is in communication with the power fan blade cavity, a lower air outlet main flow path where air enters from the upper front air port (151) and is discharged from the lower front air port (111) is formed in the cabinet air conditioner indoor unit; and when the upper rear air port (152) and/or the lower rear air port (141) are opened and the upper air channel (24) and the lower air channel (25) are both in communication with the power fan blade cavity, an air outlet main flow path wherein air is discharged simultaneously from the upper front air outlet (151) and the lower front air outlet (111) is formed in the cabinet air conditioner indoor unit. The cabinet air conditioner indoor unit improves the comfort of air.

IPC Classes  ?

• F24F 1/0014 - Indoor units, e.g. fan coil units characterised by air outlets having two or more outlet openings

Abstract

Provided in the present disclosure are a pump oil path structure, a pump, a compressor and an air conditioner. The pump oil path structure comprises: an upper flange, wherein an upper oil groove and an oil return portion are provided on the inner wall of a shaft hole of the upper flange; the lower end of the upper oil groove can be configured to suck in oil, the upper oil groove extends upwards along the inner wall of the shaft hole, and the upper end of the upper oil groove is located at the top end of the upper flange or spaced apart by a preset distance from the top end of the upper flange; and the oil return portion is in direct communication with the upper oil groove so as to suck in oil from the upper oil groove and guide the oil into an oil sump of a compressor. The present disclosure can reduce the oil carryover rate to the maximum extent, and can improve the lubricating effect; and the oil return portion is in direct communication with the upper oil groove, and the structural form of an oil storage tank is omitted, such that the flowing of lubricating oil can be continuously ensured when a compressor operates under low-frequency working conditions, the lubricating performance of the oil regarding the upper flange at a low frequency can be ensured, and the problem of the lubricating capacity being reduced during low-frequency operation due to the provision of an oil storage tank is solved.

IPC Classes  ?

• F04C 29/02 - LubricationLubricant separation
• F04C 29/00 - Component parts, details, or accessories, of pumps or pumping installations specially adapted for elastic fluids, not provided for in groups

Abstract

The present application relates to a voltage driving circuit and system and a household appliance. The voltage driving circuit includes a diode; a thin film capacitor; a resonant circuit configured to be connected to a three-phase power supply and enter a non-resonant operating state in a case where a working current of a load is greater than a present current; a rectifier circuit, of which an input end is connected with the resonant circuit; a switch device, of which a first end is connected with a first output end of the rectifier circuit and an anode of the diode, a second end is connected with a second output end of the rectifier circuit and a first end of the thin film capacitor, wherein a cathode of the diode is connected with a second end of the thin film capacitor; an inverter circuit connected with the first end of the thin film capacitor and the second end of the thin film capacitor, and configured to be connected to the load; and a control device, connected with a control end of the switch device, the resonant circuit, and the inverter circuit.

IPC Classes  ?

• H02M 5/458 - Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into DC by static converters using discharge tubes or semiconductor devices to convert the intermediate DC into AC using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
• H02M 1/00 - Details of apparatus for conversion
• H02M 7/5387 - Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration

Abstract

A pump body assembly, a compressor and an air conditioner. The pump body assembly comprises: a cylinder (11), on which an air suction hole (111) and a sliding vane groove (112) are provided spaced apart; an upper flange (12), which is arranged on the cylinder (11) and is located above the cylinder (11), a return channel (121) being provided in the upper flange (12), running through the upper flange (12) in the axial direction of the upper flange (12), and extending along the circumference of the upper flange (12), wherein along the circumference of the upper flange (12), at least one of the air suction hole (111) and the sliding vane groove (112) is arranged staggered with respect to the distribution zone of the return channel (121). The pump body assembly can solve the technical problem in the prior art whereby liquid refrigerant oil cannot smoothly flow back into an oil sump.

IPC Classes  ?

• F04C 18/356 - Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
• F04C 29/12 - Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
• F04C 29/02 - LubricationLubricant separation

Abstract

The present disclosure provides a centrifugal fan impeller, a fan, and an air conditioning system, which solve the technical problems of a small air volume and large noise of a centrifugal fan, low efficiency of a fan, and a relatively concentrated airflow. The centrifugal fan impeller includes blades and a fixing disk, the blades being forward-curved structures and fixed to the fixing disk, wherein in a height direction of the blades, widths of all or part of the blades progressively increase from a suction port to the fixing disk, so that the suction port of the fan impeller is a tapering trumpet-like structure. The fan includes a centrifugal fan impeller, and a volute, which is inclined on two sides. The air conditioning system includes a fan. The suction port of the fan impeller of the present disclosure is configured as a trumpet-like tapering structure, such that an air intake area of the fan impeller is increased, air intake resistance is reduced, and an air volume and efficiency of the fan are improved, under the condition of the same outer diameter and height of the fan impeller; intake angles of the blades change, thereby effectively discretizing intake fluid and reducing noise; and the width of the fan impeller progressively increases, and the work capacity of the fan impeller gradually increases, thus improving the overall work efficiency of the fan.

IPC Classes  ?

• F04D 29/66 - Combating cavitation, whirls, noise, vibration, or the likeBalancing
• F04D 25/08 - Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation

Abstract

An air speed control method and control apparatus for an air conditioner, and an electronic device. The air conditioner comprises an upper fan load, a lower fan load and an air guide plate load. The control method comprises: when an air conditioner does not enable an anti-direct blowing function, acquiring the current indoor temperature; and when an adjusted indoor temperature is lower than or equal to a first preset temperature, and the difference between the adjusted indoor temperature and a second preset temperature is less than or equal to a preset temperature difference, keeping an air speed gear of a lower fan load unchanged, and adjusting a rotation speed of the lower fan load to the lowest rotation speed, wherein the adjusted indoor temperature is higher than or equal to the indoor temperature. By means of the method, the problem of user experience being poor caused by direct blowing of an air conditioner is solved, thereby achieving the effect of avoiding the direct blowing of the air conditioner.

IPC Classes  ?

• F24F 11/77 - Control systems characterised by their outputsConstructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
• F24F 1/0014 - Indoor units, e.g. fan coil units characterised by air outlets having two or more outlet openings
• F24F 11/65 - Electronic processing for selecting an operating mode
• F24F 11/79 - Control systems characterised by their outputsConstructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling the direction of the supplied air
• F24F 110/10 - Temperature

Abstract

outdooroutdoorindoormoduleindoormoduleouter tubeouter tubeouter tube, the rotating speed of the external fan. The present application solves the problem of poor operation reliability of air conditioners in some embodiments.

IPC Classes  ?

• F24F 11/30 - Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
• F24F 11/61 - Control or safety arrangements characterised by user interfaces or communication using timers
• F24F 11/64 - Electronic processing using pre-stored data
• F24F 11/86 - Control systems characterised by their outputsConstructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
• F24F 11/871 - Control systems characterised by their outputsConstructional details thereof for controlling the temperature of the supplied air by controlling absorption or discharge of heat in outdoor units by controlling outdoor fans
• F24F 11/88 - Electrical aspects, e.g. circuits
• F24F 110/10 - Temperature
• F24F 110/12 - Temperature of the outside air

Abstract

A pump body assembly, a compressor, and an air conditioner. The pump body assembly comprises a crankshaft (1), a first flange (21), a second flange (22), a first cylinder (51), a second cylinder (52), a first roller (41), a second roller (42), and a partition plate (6). The crankshaft (1) is provided with a center oil hole (10). In a radial direction, a first eccentric part is provided with a first side oil hole (11) that communicates with the center oil hole (10); the first roller (41) is provided with an oil way lubricating structure for lubricating a matching end surface of the first roller (41) and the partition plate (6); the first side oil hole (11) can convey lubricating oil to the oil way lubricating structure; and/or in a radial direction, a second eccentric part is provided with a second side oil hole (13) that communicates with the center oil hole (10); the second roller (42) is provided with an oil path lubricating structure for lubricating a matching end surface of the second roller (42) and the partition plate (6); the second side oil hole (13) can convey lubricating oil to the oil path lubricating structure. The pump body assembly can achieve active oil supply between the rollers and an end surface friction pair of the partition plate, effectively improving the lubricating effect on the rollers and the end surface friction pair, and improving the reliability and performance of the compressor.

IPC Classes  ?

• F04C 18/356 - Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
• F04C 29/02 - LubricationLubricant separation

Abstract

The present disclosure relates to a heat exchanger, a control method and device for a heat exchanger of a cooling unit, and the cooling unit. The heat exchanger comprises: a first pipeline assembly having a first refrigerant conveying pipeline, wherein the first pipeline assembly comprises a first inlet in a first heat exchange mode and a second inlet in a second heat exchange mode; a second pipeline assembly having a second refrigerant conveying pipeline, wherein the second pipeline assembly comprises a first outlet in the first heat exchange mode and a second outlet in the second heat exchange mode; a heat exchanger assembly, comprising a plurality of copper pipes, wherein first ends of the copper pipes are connected to the first refrigerant conveying pipeline, and second ends of the copper pipes are connected to the second refrigerant conveying pipeline; and a piston assembly, wherein a position in the piston assembly is located in the first refrigerant conveying pipeline and the second refrigerant conveying pipeline and used for adjusting the number of the copper pipes participating in the first heat exchange mode and the second heat exchange mode.

IPC Classes  ?

• F28D 21/00 - Heat-exchange apparatus not covered by any of the groups

Abstract

A pump body assembly includes: a crankshaft, a first baffle plate and a second baffle plate. The crankshaft includes a first eccentric portion, a support shaft and a second eccentric portion which are arranged at intervals in an axial direction; the first baffle plate and the second baffle plate are arranged in sequence between the first eccentric portion and the second eccentric portion, a first round hole is arranged defined on the first baffle plate, the support shaft is arranged in the first round hole, so that the first baffle plate and the support shaft form a baffle plate bearing, and the baffle plate bearing has a stress relief structure for reducing a contact stress between the support shaft and the first baffle plate.

IPC Classes  ?

• F04C 18/356 - Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
• F04C 29/00 - Component parts, details, or accessories, of pumps or pumping installations specially adapted for elastic fluids, not provided for in groups
• F04C 29/02 - LubricationLubricant separation

Abstract

The present application relates to a voltage driving circuit and system and a household appliance. The voltage driving circuit comprises: a diode; a thin film capacitor; a resonant circuit, configured to be connected to a three-phase power source, when a load working current is greater than a preset current, the resonant circuit entering a non-resonant operating state; a rectifier circuit, an input end of the rectifier circuit being connected to the resonant circuit; a switch device, a first end of the switch device being connected to a first output end of the rectifier circuit and an anode of the diode, a second end of the switch device being connected to a second output end of the rectifier circuit and a first end of the thin film capacitor, and a cathode of the diode being connected to a second end of the thin film capacitor; an inverter circuit, the first end of the thin film capacitor and the second end of the thin film capacitor being respectively connected to the inverter circuit, and the inverter circuit being further configured to be connected to a load; and a control device, a control end of the switch device, the resonant circuit, and the inverter circuit being respectively connected to the control device.

IPC Classes  ?

• H02P 27/08 - Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using DC to AC converters or inverters with pulse width modulation
• H02M 7/5387 - Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration
• H02M 7/06 - Conversion of AC power input into DC power output without possibility of reversal by static converters using discharge tubes without control electrode or semiconductor devices without control electrode

Abstract

A compressor and an air conditioner. The compressor comprises a crankshaft (1), a first air cylinder (2), a second air cylinder (3) and a separator plate assembly (4), wherein the separator plate assembly (4) is arranged between the first air cylinder (2) and the second air cylinder (3); the crankshaft (1) comprises an intermediate shaft section (11) located between the first air cylinder (2) and the second air cylinder (3), and the separator plate assembly (4) is arranged on the intermediate shaft section (11) in a penetrating manner; and the separator plate assembly (4) comprises a first separator plate (41), and the first separator plate (41) is in connection with the intermediate shaft section (11) to form a separator plate bearing for supporting the intermediate shaft section (11).

IPC Classes  ?

• F04C 29/00 - Component parts, details, or accessories, of pumps or pumping installations specially adapted for elastic fluids, not provided for in groups
• F04C 23/00 - Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluidsPumping installations specially adapted for elastic fluidsMulti-stage pumps specially adapted for elastic fluids

Abstract

A cylinder and a compressor. The cylinder comprises a cylinder body (1), an exhaust port (2), and a sliding sheet groove (3). The exhaust port (2) and the sliding sheet groove (3) are both arranged on the cylinder body (1). The exhaust port (2) comprises a first notch (21) and a second notch (22); the first notch (21) is arranged distant from the sliding sheet groove relative to the second notch (22); the second notch (22) is arranged close to the sliding sheet groove (3) relative to the first notch (21); the second notch (22) has one end communicated with the sliding sheet groove (3) and the other end communicated with the first notch (21); and the second notch (22) is located between the first notch (21) and the sliding sheet groove (3). The first notch (21) is used for exhausting air, and the second notch (22) is for chamfering processing of a special structure, thereby effectively eliminating flanges and burrs while reducing the clearance volume.

IPC Classes  ?

• F04C 18/356 - Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
• F04C 29/12 - Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
• F04C 29/00 - Component parts, details, or accessories, of pumps or pumping installations specially adapted for elastic fluids, not provided for in groups

Abstract

A screw compressor and an air conditioner. The screw compressor comprises: a compressor housing (1) having a compression portion mounting space (C1), a drive portion mounting space (C2), a compressor inlet (1A), and a compressor outlet (1B); a compression portion (2) disposed in the compression portion mounting space (C1), used for outputting gas of the compressor inlet (1A) from the compressor outlet (1B) after compression, and comprising a first compression unit (21) and a second compression unit (22); and a drive portion (3) disposed in the drive portion mounting space (C2), and comprising a motor rotor (31) and a motor stator (32) relatively fixed to the compressor housing (1) and relatively rotatably fitted around the outer periphery of the motor rotor (31). The motor rotor (31) is fixedly sleeved on a rotating shaft of a first male rotor (211), and a rotating shaft of a second male rotor (221) and the rotating shaft of the first male rotor (211) are coaxially integrated to form a single rotating shaft. Axial stresses of the two male rotors of the screw compressor can be directly and effectively balanced by means of the single rotating shaft, and transmission loss can be effectively reduced, thereby improving energy efficiency and reliability of the screw compressor.

IPC Classes  ?

• F04C 18/16 - Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
• F04C 29/00 - Component parts, details, or accessories, of pumps or pumping installations specially adapted for elastic fluids, not provided for in groups

Abstract

A centrifugal fan blade, a fan and an air conditioning system. The centrifugal fan blade comprises a blade (1) and a fixed dis (3), wherein the blade (1) is of a forward bent blade structure and is fixed to the fixed disk (3); the width of all or part of the blade (1) is gradually increased from an air suction port to the fixed disk in a height direction of the blade; and the air suction port (11) of the fan blade is of a tapered horn-shaped structure. The fan comprises the centrifugal fan blade and a volute, two sides of the volute being inclined. The air conditioning system comprises the fan. The air suction port of the centrifugal fan blade is of the tapered horn-shaped structure, and as such, under the conditions of the same outer diameter and height of the fan blade, an air inlet area of the fan blade is increased, the air inlet resistance is reduced, and the air volume and the fan efficiency are improved; due to the change in an air inlet angle of the blade, an air inlet fluid is effectively dispersed, and noise is reduced; and the width of the blade is gradually increased, and therefore the working capacity of the blade is gradually enhanced, thereby improving the overall working efficiency of the fan.

IPC Classes  ?

• F04D 29/28 - Rotors specially adapted for elastic fluids for centrifugal or helico-centrifugal pumps
• F04D 29/30 - Vanes
• F04D 29/42 - CasingsConnections for working fluid for radial or helico-centrifugal pumps
• F04D 29/66 - Combating cavitation, whirls, noise, vibration, or the likeBalancing

Abstract

The present disclosure provides a pump body, a compressor, and a heat exchange apparatus. The pump body includes a cylinder assembly, a piston, a motion transmission structure, and a drive member. The cylinder assembly includes a cylinder. The piston is movably disposed in the cylinder. The drive member is connected to the piston through the motion transmission structure. An outer peripheral wall of the piston has a rail groove connected end to end in a circumferential direction, and the cylinder has a guide structure extending into the rail groove; or an inner surface of the cylinder has a rail groove connected end to end in the circumferential direction, and the piston has a guide structure extending into the rail groove. So that through driving of the piston by the drive member, the piston is capable of rotating relative to the cylinder while reciprocating along a rotating axis of the piston.

IPC Classes  ?

• F04B 39/00 - Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups
• F04B 39/10 - Adaptation or arrangement of distribution members
• F04B 39/12 - CasingsCylindersCylinder headsFluid connections

Abstract

A tangential motor, a tangential motor rotor and a rotor core thereof are provided. The rotor core includes a rotor body and magnetic steel grooves provided on the rotor body 2N magnetic isolation holes are provided in a rotor magnetic pole between every two adjacent magnetic steel grooves. The 2N magnetic isolation holes are symmetrically provided at two sides of a magnetic pole center line of the rotor magnetic pole. A width of each of the magnetic isolation holes increases from a circle center of the rotor body to an outer side of the rotor body. Outer side hole surfaces, close to the outer side of the rotor body, of the magnetic isolation holes are arc-shaped surfaces which are concentrically arranged with the rotor body. The rotor core is able to reduce the vibration noise of the motor and increase the efficiency of the motor.

IPC Classes  ?

• H02K 1/27 - Rotor cores with permanent magnets
• H02K 1/276 - Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]
• H02K 29/03 - Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with a magnetic circuit specially adapted for avoiding torque ripples or self-starting problems

Abstract

An orbiting scroll plate driving assembly provided by the present application includes a main shaft (7), a tail driving shaft (6), and an eccentric shaft sleeve (5). The tail driving shaft (6) is eccentrically connected to the main shaft (7), and the eccentric shaft sleeve (5) is rotatably sleeved on the tail driving shaft (6). The orbiting scroll plate driving assembly further includes a limiting portion (14). The limiting portion (14) is disposed on the tail driving shaft (6), and provided with a first limiting portion protrusion (141). The eccentric shaft sleeve (5) is provided with an eccentric shaft sleeve groove (51). The first limiting portion protrusion (141) is correspondingly inserted into the eccentric shaft sleeve groove. A circumferential size of the eccentric shaft sleeve groove (51) is larger than a circumferential size of the first limiting portion protrusion (141). By providing the limiting portion (14) on the tail driving shaft (6), and providing a mortise joint structure between the limiting portion (14) and the eccentric shaft sleeve (5), the circumferential movement and axial movement of the eccentric shaft sleeve (5) can be confined, and the assembly and processing are simple. Further, a scroll compressor is disclosed.

IPC Classes  ?

• F04C 29/00 - Component parts, details, or accessories, of pumps or pumping installations specially adapted for elastic fluids, not provided for in groups
• F04C 18/02 - Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents

Abstract

Disclosed are a method and a device for balancing crankshaft deformation e, a crankshaft with counterweights determined according to the method, and a scroll compressor using the crankshaft. The method includes: determining a component centrifugal force required by a counterweight to overcome the crankshaft deformation caused by both an orbiting scroll centrifugal force and a gas force; and determining the counterweight according to the component centrifugal force. The counterweight is arranged on the crankshaft.

IPC Classes  ?

• F04C 18/02 - Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
• F04C 23/00 - Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluidsPumping installations specially adapted for elastic fluidsMulti-stage pumps specially adapted for elastic fluids
• F04C 29/00 - Component parts, details, or accessories, of pumps or pumping installations specially adapted for elastic fluids, not provided for in groups

Abstract

Scroll compressor, a vehicle air conditioner and a vehicle are disclosed. The scroll compressor includes a first end cover, a casing and a crankshaft. The casing is provided with a supporting portion having a first bearing mounting portion; the first end cover is provided with a second bearing mounting portion; a first end of the crankshaft is arranged in the first bearing mounting portion through a first bearing; a second end of the crankshaft is arranged in the second bearing mounting portion through a second bearing; and the first bearing mounting portion and the second bearing mounting portion cooperate with each other to form an axial limitation on the crankshaft.

IPC Classes  ?

• F04C 18/02 - Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
• F04C 29/00 - Component parts, details, or accessories, of pumps or pumping installations specially adapted for elastic fluids, not provided for in groups

Abstract

A pump body assembly and fluid machinery, the pump body assembly comprising: an air cylinder assembly, which comprises an air cylinder (10), a roller (20) and a sliding piece (30), wherein the air cylinder (10) is provided with an inner cavity (11) and a sliding piece groove (12) that communicates with the inner cavity (11), the roller (20) is rotatably arranged in the inner cavity (11), the sliding piece (30) is slidably arranged in a sliding piece groove (12), and the head of the sliding piece (30) is in contact with the outer peripheral surface of the roller (20); and a crankshaft (40), which is penetratively arranged on the air cylinder assembly, wherein the crankshaft (40) comprises an eccentric part (41), the eccentric part (41) is located in the inner cavity (11), and the roller (20) is sleeved on the eccentric part (41). The ratio of the eccentricity e of the eccentric part (41) to the inner radius R of the air cylinder (10) is 0.15-0.195 or 0.21-0.225 or 0.235-0.27, which ameliorates the problem in the prior art in which the optimal relative eccentric distance is not selected.

IPC Classes  ?

• F04C 18/356 - Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
• F04C 29/00 - Component parts, details, or accessories, of pumps or pumping installations specially adapted for elastic fluids, not provided for in groups

Abstract

A pump body assembly, a spacer aligning method, a compressor, and an air conditioner. The pump body assembly comprises: a crankshaft (1), the crankshaft (1) comprising a first eccentric portion (12), a support shaft (13), and a second eccentric portion (15) which are axially arranged at intervals; and a first spacer (6) and a second spacer (7) sequentially arranged between the first eccentric portion (12) and the second eccentric portion (15), wherein a first round hole is formed on the first spacer (6), the support shaft is provided in the first round hole, a tangent plane (13b) is provided at the peripheral surface of the support shaft (13), a gap detection slot (19) is formed between the tangent plane (13b) and the inner wall of the first round hole, and is used for detecting an entire circumference fitting gap (18) between the support shaft (13) and the first spacer (6). According to the pump body assembly, it is ensured that the fitting gap of a spacer bearing is uniform, such that a force applied to the spacer bearing is uniform, and the reliability of the pump body assembly is improved.

IPC Classes  ?

• F04C 18/356 - Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
• F04C 29/00 - Component parts, details, or accessories, of pumps or pumping installations specially adapted for elastic fluids, not provided for in groups

Abstract

A pump body assembly, comprising a crankshaft (1). The crankshaft (1) comprises a first eccentric portion (12), a support shaft (13), and a second eccentric portion (15) which are axially disposed at intervals; a first partition plate (6) and a second partition plate (7) are successively disposed between the first eccentric portion (12) and the second eccentric portion (15); a first round hole (17) is formed in the first partition plate (6), and a support shaft (13) is disposed in the first round hole (17), so that the first partition plate (6) and the support shaft (13) form a partition plate bearing, and the partition plate bearing is provided with a stress reduction structure for reducing contact stress between the support shaft (13) and the first partition plate (6). A compressor and an air conditioner comprising the pump body assembly are further provided. By means of the pump body assembly, the problem of bearing abrasion caused by overlarge local stress can be mitigated, and the service life of the partition plate bearing is prolonged.

IPC Classes  ?

• F04C 18/356 - Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
• F04C 23/02 - Pumps characterised by combination with, or adaptation to, specific driving engines or motors

Abstract

Provided by the present disclosure are a compressor, a dual-compressor series heat pump unit, and a control method therefor, wherein the compressor comprises a first compression part and a first driving part. The first driving part is arranged in a first gearbox housing. The first compression part is arranged in a first air intake housing. The first air intake housing is connected to the first gearbox housing to form an integral body. The first air intake housing is configured with a first bypass port. A first lubricating oil inlet and a first balance port are configured on the first gearbox housing. According to the present disclosure, the first bypass port, the first balance port, and the first lubricating oil inlet provided on a compressor housing may facilitate the connection of the unit in different operation modes by means of setting corresponding communication pipelines when applied to a dual-compressor series heat pump unit. Thus, in both a single-compressor operation mode and the dual-compressor operation mode, lubricating oil in the compressors may smoothly return to an external oil tank.

IPC Classes  ?

• F25B 31/00 - Compressor arrangements

Abstract

An air suction device, a compression assembly, and an air conditioner. The air suction device comprises a cylinder body (5), an air inlet pipe (2), a first air outlet pipe (6) and a second air outlet pipe (7), the circulation area of the air inlet pipe (2) being S, the circulation area of the first air outlet pipe (6) being S1, the circulation area of the second air outlet pipe (7) being S2, and S≥S1+S2; or, the air suction device comprises an air inlet pipe (2), a first air outlet pipe (6) and a second air outlet pipe (7), the circulation area of the air inlet pipe (2) being S, the circulation area of the first air outlet pipe (6) being S1, the circulation area of the second air outlet pipe (7) being S2, and S≥S1+S2. The air suction device is capable of reducing suction resistance, increasing the air delivery amount of the compressor, and improving the energy efficiency of the compressor.

IPC Classes  ?

• F04C 29/12 - Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
• F04C 29/00 - Component parts, details, or accessories, of pumps or pumping installations specially adapted for elastic fluids, not provided for in groups
• F25B 43/00 - Arrangements for separating or purifying gases or liquidsArrangements for vaporising the residuum of liquid refrigerant, e.g. by heat

Abstract

The present disclosure relates to an air conditioner and a compressor. The compressor includes: a first cylinder assembly, including a first cylinder body and a first sliding vane, a volume control assembly, including a pressure regulator; wherein the pressure regulator is provided with a storage cavity, and the storage cavity is communicated with the variable volume control cavity; wherein the first sliding vane is configured to slide in a reciprocating manner between the first compression cavity and the variable volume control cavity along the first sliding vane groove, to change the volume of the variable volume control cavity; and the refrigerant introduced into the variable volume control cavity flows between the variable volume control cavity and the storage cavity along with a change of the volume of the variable volume control cavity.

IPC Classes  ?

• F04C 28/06 - Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids specially adapted for stopping, starting, idling or no-load operation
• F04C 18/32 - Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having both the movement defined in group and relative reciprocation between the co-operating members
• F04C 18/356 - Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
• F04C 23/00 - Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluidsPumping installations specially adapted for elastic fluidsMulti-stage pumps specially adapted for elastic fluids
• F04C 28/18 - Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by varying the volume of the working chamber
• F04C 29/12 - Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
• F25B 31/00 - Compressor arrangements

Abstract

Disclosed are a sealing structure and a scroll air compressor having the same. The sealing structure includes an orbiting scroll including an orbiting scroll spiral tooth, the orbiting scroll spiral tooth being provided with an orbiting scroll spiral tooth groove, an orbiting scroll wear-resistant sealing strip being provided in the orbiting scroll spiral tooth groove, a stationary scroll including a stationary scroll spiral tooth matched with the orbiting scroll spiral tooth, the stationary scroll spiral tooth being provided with a stationary scroll spiral tooth groove, a stationary scroll wear-resistant sealing strip is provided in the stationary scroll spiral tooth groove, the wear-resistant sealing strip is divided into sections including a high-temperature and high-pressure section and a medium-temperature and medium-pressure section.

IPC Classes  ?

• F04C 18/02 - Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
• F04C 27/00 - Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids
• F01C 7/00 - Rotary-piston machines or engines with fluid ring or the like
• F01C 19/08 - Axially-movable sealings for working fluids
• F01C 19/00 - Sealing arrangements in rotary-piston machines or engines

Abstract

A compressor includes an orbiting scroll, a cooling pipe and a crankshaft, the cooling pipe includes an inlet pipe and an outlet pipe, an axial through hole is provided at a center of the orbiting scroll, a sealing portion of the orbiting scroll is provided with a sealing groove, a mounting hole is provided in the crankshaft, the cooling pipe passes through the crankshaft and enters from a tail portion of the crankshaft, through the mounting hole, the axial through hole and the sealing groove, and then returns back on the same way, and a part of the cooling pipe is arranged in the sealing portion of the orbiting scroll, the cooling pipe moves synchronously with the orbiting scroll and rotates with respect to the crankshaft.

IPC Classes  ?

• F03C 2/00 - Rotary-piston engines
• F03C 4/00 - Oscillating-piston engines
• F04C 18/00 - Rotary-piston pumps specially adapted for elastic fluids
• F04C 15/00 - Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups
• F04C 29/02 - LubricationLubricant separation
• F04C 18/02 - Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
• F04C 29/04 - HeatingCoolingHeat insulation

Abstract

Disclosed is a compressor (1), comprising a main shaft (15) and a gravity center adjustment mechanism (7). The gravity center adjustment mechanism is arranged on the main shaft, the gravity center adjustment mechanism is configured to rotate along with the main shaft, and when the gravity center adjustment mechanism rotates, the gravity center thereof can move in the axial direction of the main shaft. The gravity center of the compressor is automatically adjusted as the main shaft rotates, and a self-adaptive dynamic adjustment effect is generated as the operation frequency of the compressor changes.

IPC Classes  ?

• F04C 29/00 - Component parts, details, or accessories, of pumps or pumping installations specially adapted for elastic fluids, not provided for in groups
• F04C 18/02 - Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents

Abstract

A rotary cylinder piston compressor pump is provided, including a rotating shaft (2), a piston (3) and a cylinder (4). A rotating shaft hole (21) is provided in the rotating shaft (2). An oil guiding channel, provided in the cylinder (4), communicating with the rotating shaft hole (21). A recess (45) is formed in the inner end face of the cylinder (4). An oil path (61) sealed relative to a compression cavity (49) of the cylinder (4) is formed between the recess (45) and the piston (3). The oil path (61) between the recess (45) and the piston (3) is communicated with an oil path (62) between the piston (3) and the rotating shaft (2) and is communicated with the oil guiding channel by means of an oil returning channel. Also provided is a compressor including the compressor pump.

IPC Classes  ?

• F04C 15/00 - Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups
• F04C 29/02 - LubricationLubricant separation
• F16N 13/20 - Rotary pumps
• F25B 1/04 - Compression machines, plants or systems with non-reversible cycle with compressor of rotary type

Abstract

Compressor head fixing device, a compressor and a refrigeration device. The compressor head fixing device includes a cylinder block and a cylinder head cover, the cylinder head cover being connected to the cylinder block by a fastener, the cylinder block being provided with a compression chamber and an assembly hole configured to fix the fastener; a noise reduction chamber, provided on the cylinder block; and a communication passage, provided in the cylinder block and the cylinder head cover, and being in communication with the assembly hole, the noise reduction chamber and the compression chamber. The compressor head fixing device has a compact structure, a length of the exhaust passage is shortened and the exhaust pressure is reduced.

IPC Classes  ?

• F04B 39/00 - Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups
• F04B 39/10 - Adaptation or arrangement of distribution members
• F04B 39/12 - CasingsCylindersCylinder headsFluid connections

Abstract

A muffler structure and a compressor comprising a muffler, and a refrigerator. The muffler structure comprises: a housing (4) provided with a muffler cavity therein, an inlet (5) and an outlet (6) of the housing (4), the inlet (5) and the outlet (6) both being in communication with the muffler cavity; an oil return part provided in the muffler cavity; and a first separation part (41) located in the muffler cavity and separating the muffler cavity into a first cavity and a second cavity, the first separation part (41) being provided with a first through-hole (412) communicating the first cavity and the second cavity; the oil return part comprises an oil return groove (411); and the oil return groove (411) is located on a surface of a side of the first separation part (41) close to the inlet (5).

IPC Classes  ?

• F04B 39/00 - Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups

Abstract

The present disclosure discloses a compressor, an air conditioning system and a vehicle. The compressor comprises a compression cavity, and further comprises a flash cavity capable of flashing a liquid refrigerant, and a communicating passage that communicates a flash cavity gas outlet of the flash cavity and an enthalpy increasing gas supply port of the compression cavity; the flash cavity is provided with an inlet and a liquid outlet, the inlet of the flash cavity is configured to be communicated with an outlet of a condenser, and the liquid outlet of the flash cavity is configured to be communicated with an inlet of an evaporator. The air conditioning system comprises the compressor, the evaporator, the condenser, a flasher, and various pipelines for connecting the entire system. The compressor comprises the flash cavity with a flash function, so that the entire enthalpy increasing system is simpler, the space for an additional flasher structure is saved, and the enthalpy increasing system is more suitable for a vehicle-mounted air conditioning system with a limited space. The present disclosure also discloses a vehicle, particularly an electric vehicle, using the air conditioning system.

IPC Classes  ?

• F25B 1/00 - Compression machines, plants or systems with non-reversible cycle
• B60H 1/32 - Cooling devices
• B60H 1/00 - Heating, cooling or ventilating devices

Abstract

Some embodiments of the disclosure disclose a bearing assembly and a compressor with the bearing assembly. The bearing assembly includes: a retainer assembly (50), a bearing stationary ring (40), and a bearing rotary ring (10). The retainer assembly (50) is disposed between the bearing stationary ring (40) and the bearing rotary ring (10). A lubrication passage is provided in an end face of the bearing rotary ring (10).

IPC Classes  ?

• F16C 33/58 - RacewaysRace rings
• F16C 33/66 - Special parts or details in view of lubrication
• F04C 29/00 - Component parts, details, or accessories, of pumps or pumping installations specially adapted for elastic fluids, not provided for in groups

Abstract

A muffler includes a housing and a partition member. The housing includes a cavity, a gas inlet, and a gas outlet. The gas inlet and the gas outlet are respectively in communication with the cavity. The partition member is disposed in the housing. The partition member partitions the cavity into a resonant cavity and a muffling cavity that are isolated from each other. The resonant cavity is in communication only with the gas inlet. The muffling cavity is in communication with both the gas inlet and the gas outlet.

IPC Classes  ?

• F01N 1/02 - Silencing apparatus characterised by method of silencing by using resonance
• F01N 1/08 - Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling
• F04B 39/00 - Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups

Abstract

A pump body assembly (15) and a variable capacity compressor. The variable capacity compressor is provided with a pump body assembly (15), comprising cylinder members (204, 207), a sliding piece (213) and a pin member (209). There are a plurality of cylinder members (204, 207), a pin hole (2073) is provided on the cylinder member (204, 207), the pin member (209) is provided within the pin hole (2073) and can move in the axial direction of the pin hole (2073), a sliding piece groove (2076) is further provided on the cylinder member (204, 207), the sliding piece (213) is provided within the sliding piece groove (2076), and the pin hole (2073) is in communication with the sliding piece groove (2076). The pump body assembly (15) solves the problem of a complex structure of a lower flange of conventional variable capacity compressors caused by the provision of a pin hole, enabling the structure and the assembly process of the pump body assembly to be simple.

IPC Classes  ?

• F04C 18/356 - Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
• F04C 28/06 - Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids specially adapted for stopping, starting, idling or no-load operation

Abstract

Provided is a permanent magnet motor, comprising a rotor component and a stator component. The rotor component comprises alternating poles and permanent magnet poles alternately arranged in a circumferential direction. The stator component comprises stator teeth portions arranged and spaced apart in a circumferential direction on an inner circumferential side of the stator component. A first air gap is formed between an inner circumferential side of the stator teeth portion and an outer circumferential side of the permanent magnet pole. A second air gap is formed between the inner circumferential side of the stator teeth portion and an outer circumferential side of the alternating pole. An average thickness of the first air gap is δ1; an average thickness of the second air gap is δ2, wherein 0.4≤δ2/δ1≤0.9.

IPC Classes  ?

• H02K 1/27 - Rotor cores with permanent magnets
• H02K 29/03 - Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with a magnetic circuit specially adapted for avoiding torque ripples or self-starting problems
• H02K 1/02 - Details of the magnetic circuit characterised by the magnetic material
• H02K 21/02 - Synchronous motors having permanent magnetsSynchronous generators having permanent magnets Details

Abstract

The present disclosure provides a wiring structure of a magnetic suspension bearing, a compressor and an air conditioner. The wiring structure of a magnetic suspension bearing, for electrically connect a control coil of the magnetic suspension bearing with an external power source, includes a circuit board; wherein the number of the magnetic suspension bearing is two or more, and the control coils of the two or more magnetic suspension bearings are all configured to electrically connect to the circuit board, and the circuit board is configured to connect to the external power source. The present disclosure has the advantages of reasonable design, simple structure, implementation of integrating wiring of multiple magnetic suspension bearings, simplification of wiring work, improvement of production efficiency, and improvement of wiring reliability.

IPC Classes  ?

• F16C 32/04 - Bearings not otherwise provided for using magnetic or electric supporting means
• H01F 27/28 - CoilsWindingsConductive connections
• H01R 12/51 - Fixed connections for rigid printed circuits or like structures
• H01R 31/06 - Intermediate parts for linking two coupling parts, e.g. adapter
• H02K 7/09 - Structural association with bearings with magnetic bearings

Abstract

A sliding vane, a pump body assembly, a compressor and an air conditioner. The sliding vane comprises a sliding vane body (1). The sliding vane body (1) comprises a first sliding surface and a second sliding surface which are arranged in parallel. The first sliding surface and the second sliding surface are respectively provided with an insert (2). The insert (2) located on the first sliding surface and the insert (2) located on the second sliding surface are respectively provided on either side of a sliding vane head of the sliding vane body (1) and are separated by the sliding vane head. The present invention can reduce the machining difficulty of the inserts, and improve the design flexibility of the structure of the sliding vane head.

IPC Classes  ?

• F04C 18/356 - Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
• F04C 18/44 - Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and having a hinged member with vanes hinged to the inner member
• F04C 29/00 - Component parts, details, or accessories, of pumps or pumping installations specially adapted for elastic fluids, not provided for in groups

Abstract

A compressor includes a housing, and a drive assembly, a compression assembly and an expansion assembly which are provided in the housing; the compression assembly is connected to and driven by the drive assembly, and is configured to perform multi-stage compression on a refrigerant under drive of the drive assembly; the expansion assembly is connected to the drive assembly and is configured to expand the refrigerant compressed by the compression assembly. A refrigeration cycle device includes the above-mentioned compressor.

IPC Classes  ?

• F25B 31/02 - Compressor arrangements of motor-compressor units
• F01C 1/32 - Rotary-piston machines or engines having the characteristics covered by two or more of groups , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having both the movement defined in group and relative reciprocation between the co-operating members
• F01C 1/356 - Rotary-piston machines or engines having the characteristics covered by two or more of groups , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
• F01C 11/00 - Combinations of two or more machines or engines, each being of rotary-piston or oscillating-piston type
• F01C 13/04 - Adaptations of machines or engines for special useCombinations of engines with devices driven thereby for driving pumps or compressors
• F04C 18/32 - Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having both the movement defined in group and relative reciprocation between the co-operating members
• F04C 18/356 - Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
• F04C 23/00 - Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluidsPumping installations specially adapted for elastic fluidsMulti-stage pumps specially adapted for elastic fluids
• F04C 27/00 - Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids
• F04C 29/02 - LubricationLubricant separation
• F25B 13/00 - Compression machines, plants or systems, with reversible cycle

Abstract

Scroll compressor and a vehicle having the same. The scroll compressor includes: a support and an orbiting scroll assembly, the orbiting scroll assembly being movably provided on the support; a partition structure, provided between the support and the orbiting scroll assembly, a first bearing chamber being formed between the partition structure and the orbiting scroll assembly, a second bearing chamber being formed between the partition structure and the support, the orbiting scroll assembly being provided with a first through hole in communication with the first bearing chamber, and the support being provided with a second through hole in communication with the second bearing chamber; and a first crankshaft), passing through the partition structure, a first communication passage through which the first bearing chamber is in communication with the second bearing chamber is formed between the first crankshaft and the partition structure.

IPC Classes  ?

• F04C 18/02 - Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
• F04C 29/02 - LubricationLubricant separation

Abstract

Provided are a motor sealing structure and a motor. The motor sealing structure comprises: a rotary shaft, a bearing, which is sleeved on the rotating shaft. A shaft shoulder structure is arranged on an outer peripheral wall of the rotating shaft at a position corresponding to the bearing along an axial direction of the rotating shaft, so as to form a cavity between a portion of the bearing and the shaft shoulder structure, and a fan blade structure, which is sleeved at one end of the rotating shaft and extends in the axial direction of the rotating shaft to the position of the bearing, and is inserted into and held in the cavity.

IPC Classes  ?

• H02K 5/124 - Sealing of shafts
• H02K 9/06 - Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
• H02K 5/10 - Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. of water or fingers
• H02K 5/173 - Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings

Abstract

Provided are a pump body assembly and an assembly method therefor. The pump body assembly includes a first cylinder assembly (10), a second cylinder assembly (20) and a third cylinder assembly (30) sequentially arranged in a vertical direction. At least one of the first cylinder assembly (10), the second cylinder assembly (20) and the third cylinder assembly (30) is provided with a positioning detection portion (40).

IPC Classes  ?

• F03C 2/00 - Rotary-piston engines
• F03C 4/00 - Oscillating-piston engines
• F04C 2/00 - Rotary-piston machines or pumps
• F04C 11/00 - Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston typePumping installations
• F04C 23/00 - Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluidsPumping installations specially adapted for elastic fluidsMulti-stage pumps specially adapted for elastic fluids
• F04C 18/356 - Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member

Abstract

A permanent magnet synchronous motor rotor and a compressor having same. The permanent magnet synchronous motor rotor comprises a rotor body (10), a plurality of permanent magnet slots (11) is formed in the circumferential direction of the rotor body (10), and a magnetic pole center line is provided between adjacent permanent magnet slots (11); permanent magnets (20) are arranged in the permanent magnet slots (11); a first end of the permanent magnet (20) faces towards the side of a shaft hole (12) of the rotor body (10), and a second end of the permanent magnet (20) extends towards the outer edge of the rotor body (10); the thickness of the first end of the permanent magnet (20) along the circumferential direction of the rotor body (10) is H1, and the length extending from the midpoint of the tip of the first end of the permanent magnet (20) to the adjacent magnetic pole center line along the circumferential direction of the rotor body (10) is L1; the position relationship between the permanent magnet (20) and the magnetic pole center line of a rotor core can be reasonably set by means of such a setting (I). A permanent magnet synchronous motor rotor structure using the arrangement can effectively improve the torque of a motor having the rotor structure, improve the motor efficiency, improve the cost performance of the motor, and improve the anti-demagnetization capability of the motor.

IPC Classes  ?

• H02K 1/27 - Rotor cores with permanent magnets
• H02K 1/28 - Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures
• H02K 21/14 - Synchronous motors having permanent magnetsSynchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures

Abstract

A compressor and a heat exchange device. The compressor comprises: pump body structures (100), the number of the pump body structures (100) being two; a driving portion (30), the driving portion (30) comprising a stator assembly (31), a rotor assembly (32) matching the stator assembly (31), and a main shaft (40), the two ends of the main shaft (40) extending out from the two ends of the rotor assembly (32) and being respectively in driving connection with the two pump body structures (100), so as to simultaneously drive the two pump body structures (100) to operate. The structure can increase the exhaust amount of the compressor and achieves self-balance.

IPC Classes  ?

• F04C 18/356 - Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
• F04B 25/00 - Multi-stage pumps specially adapted for elastic fluids

Abstract

Disclosed are a pump body structure, a compressor, and a heat exchange apparatus. The pump body structure comprises: an air cylinder assembly (10) comprising an air cylinder (11), a piston (20) movably arranged inside the air cylinder (11), and a transmission structure (40) and a driving portion (30), wherein the transmission structure (40) is in driving connection with the piston (20); a peripheral wall of the piston (20) has guide rail grooves (21) connected end-to-end in a circumferential direction, and the air cylinder (11) has guide structures (111) extending into the interiors of the guide rail grooves (21); or an inner surface of the air cylinder (11) has the guide rail grooves (21) connected end-to-end in the circumferential direction, and the piston (20) has the guide structures (111) extending into the interiors of the guide rail grooves (21), such that, by means of driving the piston (20) by the driving portion (30), the piston (20) reciprocates inside the air cylinder (11) along a pivotal axis of the piston (20) while rotating relative to the air cylinder (11).

IPC Classes  ?

• F04B 35/01 - Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being mechanical
• F04B 39/00 - Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups
• F04B 53/14 - Pistons, piston-rods or piston-rod connections

Abstract

Disclosed is an orbiting scroll plate driving assembly, comprising a driving main shaft (7), a driving tail shaft (6) and an eccentric shaft sleeve (5), wherein the driving tail shaft (6) is eccentrically connected to the driving main shaft (7), and the eccentric shaft sleeve (5) is rotatably arranged on the driving tail shaft (6) in a sleeved manner. The orbiting scroll plate driving assembly further comprises a limiting portion (14), wherein the limiting portion (14) is arranged on the driving tail shaft (6), a limiting portion first protrusion (141) is arranged on the limiting portion (14), an eccentric shaft sleeve groove (51) having the limiting portion first protrusion (141) correspondingly inserted therein is arranged on the eccentric shaft sleeve (5), and the width of the eccentric shaft sleeve groove (51) is greater than the width of the limiting portion first protrusion (141). The limiting portion (14) is arranged on the driving tail shaft (6), and a joggle joint structure is arranged between the limiting portion (14) and the eccentric shaft sleeve (5), such that the circumferential rotation and axial movement of the eccentric shaft sleeve (5) can be limited, and the assembly process is simple. Further disclosed is a scroll compressor having the orbiting scroll plate driving assembly.

IPC Classes  ?

• F04C 18/02 - Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
• F04C 29/00 - Component parts, details, or accessories, of pumps or pumping installations specially adapted for elastic fluids, not provided for in groups

Abstract

A refrigeration/heat pump system having two-stage compression and multiple air supplementations, a control method therefor and an air conditioner, the refrigeration heat pump system comprising: a high pressure stage compression part (100) and a low pressure stage compression part (200), a first air supplementing inlet (101) is provided between the high pressure stage compression part (100) and the low pressure stage compression part (200), and a second air supplementing inlet (201) is also provided in the low pressure stage compression part (200). The system further comprises a first air supplementing assembly (3) and a second air supplementing assembly (4), the first air supplementing assembly (3) being in communication with the first air supplementing inlet (101) so as to supplement air from the first air supplementing inlet (101), and the second air supplementing assembly (4) being in communication with the second air supplementing inlet (201) so as to supplement air from the second air supplementing inlet (201).

IPC Classes  ?

• F24F 5/00 - Air-conditioning systems or apparatus not covered by group or
• F25B 30/02 - Heat pumps of the compression type
• F25B 49/02 - Arrangement or mounting of control or safety devices for compression type machines, plants or systems
• F25B 41/06 - Flow restrictors, e.g. capillary tubes; Disposition thereof

Abstract

A compressor and an air conditioner. The compressor comprises a low-pressure stage compression portion. The low-pressure stage compression portion comprises a first compression structure and a second compression structure. The first compression structure has a first exhaust chamber (11), and the second compression structure has a second exhaust chamber (21). The first exhaust chamber (11) is in communication with the second exhaust chamber (21) by means of a gas supplement passage (3), and the gas supplement passage (3) is in communication with a gas supplement port (31).

IPC Classes  ?

• F04C 23/00 - Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluidsPumping installations specially adapted for elastic fluidsMulti-stage pumps specially adapted for elastic fluids
• F04C 29/12 - Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet

Abstract

The present disclosure provides a stator, a motor and a compressor. The stator is provided with slots and teeth that are alternately arranged, the number of the slots is greater than or equal to 12, the number of poles of the stator is greater than or equal to 4, the number of slots per pole per phase of the stator is less than or equal to 0.5, the cross-sectional area of the slots is S1, and the cross-sectional area of the teeth is S2, wherein S1/S2 is less than or equal to 1. The present disclosure can effectively improve motor torque density and power density characteristics, so that motor performance is not reduced when the compressor works at a rated point, which improves piston compressor motor power density, and facilitates adaptation to the piston compressor low-speed trend.

IPC Classes  ?

• H02K 1/14 - Stator cores with salient poles
• H02K 1/16 - Stator cores with slots for windings

Abstract

Disclosed are a scroll compressor, a vehicle air conditioner and a vehicle. The scroll compressor comprises a first end cover (1), a machine shell (2) and a crankshaft (3), wherein the machine shell (2) is provided with a support portion; the support portion is provided with a first bearing mounting portion (4); the first end cover (1) is provided with a second bearing mounting portion (5); a first end of the crankshaft (3) is provided on the first bearing mounting portion (4) via a first bearing (6), and a second end of the crankshaft (3) is provided on the second bearing mounting portion (5) via a second bearing (7); and the first bearing mounting portion (4) and the second bearing mounting portion (5) cooperate with each other to create axial limitation for the crankshaft (3).

IPC Classes  ?

• F04C 18/02 - Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
• F04C 29/00 - Component parts, details, or accessories, of pumps or pumping installations specially adapted for elastic fluids, not provided for in groups

Abstract

A tangential motor, a tangential motor rotor and a rotor iron core thereof. The rotor iron core includes a rotor body and permanent magnet slots provided on the rotor body, a rotor magnetic pole between two adjacent permanent magnet slots being provided with a fixing hole for fixing a rotor punched segment and a flux isolating hole; the flux isolating hole is located at an outer side of the fixing hole in a radial direction of the rotor body, a width of the flux isolating hole (12) smoothly increases in a direction from the outer side of the rotor body to a center of a circle thereof. The rotor iron core reduces vibration noise of the motor, and improves efficiency of the motor.

IPC Classes  ?

• H02K 1/279 - Magnets embedded in the magnetic core
• H02K 29/03 - Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with a magnetic circuit specially adapted for avoiding torque ripples or self-starting problems
• H02K 1/276 - Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]

Abstract

Disclosed are a crankshaft deformation balance method and device, a crankshaft with balance weights determined according to the method, and a scroll compressor using the crankshaft. The method comprises: determining a centrifugal component force required by each balance weight to overcome the deformation of a crankshaft (9) generated under the combined action of a centrifugal force of a movable plate (6) and a gas force; and determining the balance weights according to the centrifugal component forces, wherein the balance weights are arranged on the crankshaft (9). The method solves the technical problem of the balancing effect in the related art being poor due to only the influence of the centrifugal force of the movable plate on the crankshaft being considered.

IPC Classes  ?

• F04C 18/02 - Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
• F04C 29/00 - Component parts, details, or accessories, of pumps or pumping installations specially adapted for elastic fluids, not provided for in groups

Abstract

A gas-liquid separator (100), comprising a housing, an outlet pipe (103), and a liquid suction pipe (104). The outlet pipe (103) penetrates from a side wall of the housing to outside of the housing. One end of the liquid suction pipe (104) extends to the bottom of an inner cavity of the gas-liquid separator (100), and the other end of the liquid suction pipe (104) is connected to the outlet pipe (103). Also disclosed are a compressor assembly and an air conditioner. By means of shortening the length of the outlet pipe (103), the first-order resonance frequency of a refrigerant may be increased to prevent the air suction frequency of a compressor from significantly exceeding the first-order resonance frequency of the refrigerant when operating at a high frequency, which thereby facilitates the compressor in generating a suction boosting effect when operating at the high frequency, enhances the air intake efficiency of the compressor, and improves the performance of the compressor.

IPC Classes  ?

• F25B 43/00 - Arrangements for separating or purifying gases or liquidsArrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
• F25B 31/00 - Compressor arrangements
• F04C 29/12 - Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet

Abstract

A pump body assembly, a compressor and an air conditioner. The pump body assembly includes: an upper flange. The upper flange includes a disc portion and a neck portion extending upward from the disc portion, an outer peripheral surface of the disc portion is connected with a housing of the compressor, a height a1 of the disc portion and a distance b1 between an upper end surface of the neck portion and a lower end surface of the disc portion satisfy: 0.3≤a1/b1≤0.4, and the height a1 of the disc portion and a diameter d1 of the disc portion satisfy: 0.1≤a1/d1≤0.2.

IPC Classes  ?

• F04C 18/356 - Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
• F04C 29/00 - Component parts, details, or accessories, of pumps or pumping installations specially adapted for elastic fluids, not provided for in groups

Abstract

A compressor (100) and an air conditioner. The compressor (100) comprises: a first cylinder assembly (30) comprising a first cylinder (32) and a first slide (36); and a volume-variable control assembly (40) comprising a voltage stabilizing element (41). The voltage stabilizing element (41) has a storage cavity (42) which is communicated with a volume-variable control cavity (323). The first slide (36) can slide back and forth between a first compression cavity (321) and the volume-variable control cavity (323) along a first slide groove to change the volume of the volume-variable control cavity (323). A refrigerant flowing into the volume-variable control cavity (323) flows between the volume-variable control cavity (323) and the storage cavity (42) as the volume of the volume-variable control cavity (323) changes. When the volume of the volume-variable control cavity (323) changes, the refrigerant in the volume-variable control cavity (323) flows accordingly to the storage cavity (42), or the refrigerant in the storage cavity (42) is accordingly added to the volume-variable control cavity (323) to buffer the pressure change in the volume-variable control cavity (323), so as to prevent abnormal wear between the first roller (54) and the first slide (36) under a large pressure.

IPC Classes  ?

• F04C 18/356 - Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
• F04C 29/00 - Component parts, details, or accessories, of pumps or pumping installations specially adapted for elastic fluids, not provided for in groups
• F04C 23/00 - Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluidsPumping installations specially adapted for elastic fluidsMulti-stage pumps specially adapted for elastic fluids

Abstract

A phase deviation compensation method and device are provided. The method may include: a first sine analog signal and a first cosine analog signal are acquired; the first sine analog signal is converted to a corresponding first sine digital signal, and the first cosine analog signal is converted to a corresponding first cosine digital signal; a sampler is controlled to sample the first sine analog signal and the first cosine analog signal according to variations of pulse edges of the first sine digital signal and the first cosine digital signal, to acquire at least one sine sampled signal and at least one cosine sampled signal; a phase deviation is determined; and phase compensation is performed on the at least one sine sampled signal and the at least one cosine sampled signal according to the phase deviation.

IPC Classes  ?

• G01D 5/247 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means influencing characteristics of pulses or pulse trainsMechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means generating pulses or pulse trains using time shifts of pulses
• G01D 18/00 - Testing or calibrating apparatus or arrangements provided for in groups

Abstract

Some embodiments of the present disclosure provide a compressor and an air conditioner with the compressor. The compressor includes: a first compression part, a second compression part, an intermediate cavity and an intermediate passage. Refrigerant discharged from the first compression part enters the intermediate cavity. The intermediate passage communicates with the intermediate cavity and an inner cavity of the second compression part. A bottom port of the intermediate passage is located at a bottom of the intermediate cavity, and air supplement refrigerant and/or the refrigerant discharged from the first compression part are used to convey accumulated oil in the intermediate cavity to the inner cavity of the second compression part. When only the refrigerant is used to convey the accumulated to the inner cavity of the second compression part, at least a part of the intermediate passage is located outside of a housing assembly of the compressor.

IPC Classes  ?

• F04C 18/356 - Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
• F04B 25/00 - Multi-stage pumps specially adapted for elastic fluids
• F04B 39/02 - Lubrication
• F25B 31/00 - Compressor arrangements
• F04B 39/12 - CasingsCylindersCylinder headsFluid connections
• F04B 39/04 - Measures to avoid lubricant contaminating the pumped fluid
• F04C 29/02 - LubricationLubricant separation
• F04C 29/00 - Component parts, details, or accessories, of pumps or pumping installations specially adapted for elastic fluids, not provided for in groups
• F04C 23/00 - Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluidsPumping installations specially adapted for elastic fluidsMulti-stage pumps specially adapted for elastic fluids

Abstract

Provided are a compressor and a heat exchange device, wherein, the compressor comprises: a rotor structure (10); a crankshaft (20), which passes through the rotor structure (10); an oil-retaining structure (30), which is connected to the top of the crankshaft (20) and forms a first oil-retaining space with the end face of the rotor structure (10), wherein, the oil-retaining structure (30) comprises a bowl-like structure (32), and at least one open gap (33) is formed in the side wall of the bowl-like structure (32), the open gap (33) communicates with the top edge of the bowl-like structure (32), and an oil baffle (34) is arranged on the inner surface and/or the outer surface of the side wall of the bowl-like structure (32). The problem of high oil discharge rate of the compressor is solved.

IPC Classes  ?

• F04C 18/34 - Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members
• F04C 23/00 - Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluidsPumping installations specially adapted for elastic fluidsMulti-stage pumps specially adapted for elastic fluids
• F04C 27/00 - Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids

Abstract

A magnetic levitation bearing, a magnetic levitation rotor support assembly, and a compressor. The magnetic levitation bearing is used for supporting a rotor by interacting with a thrust disc on the rotor, and comprises: a radial stator core having an annular structure, which is disposed on a radial outer side of the thrust disc and corresponds to the thrust disc in an axial direction of the rotor, the radial stator core and the thrust disc being separated by a first radial gap X1; and a radial control coil, which is disposed on the radial stator core and can generate a radial electromagnetic force to the thrust disc in a radial direction of the rotor.

IPC Classes  ?

• H02K 7/09 - Structural association with bearings with magnetic bearings
• F16C 32/04 - Bearings not otherwise provided for using magnetic or electric supporting means
• F04D 29/051 - Axial thrust balancing
• F04D 29/058 - Bearings magneticBearings electromagnetic

Abstract

The present disclosure provides a power supply system for a magnetic bearing and a control method therefor. The system includes a rectifying and filtering circuit configured to rectify and filter an alternating current to obtain a first direct current with a first DC bus voltage, the first direct current being configured to supply power to an electric motor controller of an electric motor to which the magnetic bearing belongs; a power obtaining circuit configured to obtain a second direct current with a second DC bus voltage from the first direct current, the second DC bus voltage being within an input voltage range allowed by the DC-DC power supply; a DC-DC power supply configured to convert the second direct current to a third direct current with a third DC bus voltage, the third direct current being configured to supply power to a bearing controller of the magnetic bearing.

IPC Classes  ?

• F16C 32/04 - Bearings not otherwise provided for using magnetic or electric supporting means
• H02K 7/09 - Structural association with bearings with magnetic bearings
• H02M 1/36 - Means for starting or stopping converters
• H02M 5/458 - Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into DC by static converters using discharge tubes or semiconductor devices to convert the intermediate DC into AC using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
• H02N 15/00 - Holding or levitation devices using magnetic attraction or repulsion, not otherwise provided for
• H02M 1/00 - Details of apparatus for conversion
• H02M 3/04 - Conversion of DC power input into DC power output without intermediate conversion into AC by static converters

Abstract

A scroll compressor, an air conditioner, and a backpressure adjustment method for a scroll compressor. The scroll compressor comprises: a mounting support frame (20); a fixed scroll (30); an orbiting scroll (40); a compression cavity (90) provided between the orbiting scroll (40) and the fixed scroll (30); a medium-pressure cavity (100) provided between the orbiting scroll (40) and the mounting support frame (20); low-pressure gas suction cavities (110) provided at the bottom of the mounting support frame (20) and the top of the fixed scroll (30); a first connection channel (50), wherein two ends thereof respectively communicate with the compression cavity (90) and the medium-pressure cavity (100); a first control valve (70) provided on the first connection channel (50); a second connection channel (60), wherein two ends thereof respectively communicate with the medium-pressure cavity (100) and the low-pressure gas suction cavity (110); and a second control valve (80) provided on the second connection channel (60). The scroll compressor can maintain a substantially stable pressure in a backpressure cavity under the same working conditions, such that a pump body is reliably sealed, thereby improving the performance of the compressor. In addition, sealing margins in the compression cavity of the compressor under different working conditions are substantially the same, such that the pump body is reliably sealed, thereby improving the adaptability of the compressor to working conditions, and improving the overall energy efficiency of the compressor.

IPC Classes  ?

• F04C 18/02 - Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
• F04C 28/24 - Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by using valves controlling pressure or flow rate, e.g. discharge valves
• F04C 29/00 - Component parts, details, or accessories, of pumps or pumping installations specially adapted for elastic fluids, not provided for in groups

Abstract

Disclosed are a tangential motor (200), a motor rotor (100) and a rotor core (30). A plurality of permanent magnet grooves (31) are separately arranged on the rotor core (30) along the circumferential direction, and the rotor core (30) has rotor magnetic poles (32) located between two adjacent permanent magnet grooves (31); the rotor magnetic pole (32) is provided with a first magnetic isolation hole (35) and second magnetic isolation holes (37), the first magnetic isolation hole (35) being located on the radial center line (a) of the rotor magnetic pole (32) to reduce magnetic flux where the flux is more intensive and balance the flux of the whole rotor magnetic pole (32). Meanwhile, the width of the first magnetic isolation hole (35) gradually increases from outside to inside to increase the magnetic reluctance inside the rotor magnetic pole (32) where the flux is more intensive, thereby uniformly dispersing the flux at the radial center line (a) of the rotor magnetic pole (32). In addition, the second magnetic isolation holes (37) are distributed at two sides of the first magnetic isolation hole (35) along the circumference of the rotor core (30), the second magnetic isolation holes (37) coordinating with the first magnetic isolation hole (35) to further balance the flux on the rotor magnetic pole (32) and improve the flux direction. The described technical solution comprehensively improves the waveform of the flux density in the air gap, thereby reducing the proportion of harmonic waves, and reducing motor vibration and noise.

IPC Classes  ?

• H02K 1/27 - Rotor cores with permanent magnets

Abstract

A pump body assembly and a rotary cylinder piston compressor, the pump body assembly comprising: a rotary shaft (1), a piston (2) and at least one shaft oil groove (14). The rotary shaft (1) comprises a shaft body and a shaft inner hole (12) formed in the shaft body and extending in the axial direction of the shaft body; the shaft body is provided with a first matching part which matches a piston; the peripheral wall of the first matching part is provided with two opposite first planes (111); the rotary shaft (1) carries out reciprocating motion in the direction parallel to the first planes (111) relative to the piston (2); at least one shaft oil hole (13) is penetratingly formed between the hole wall of the shaft inner hole (12) and the first planes (111). The piston (2) is provided with a rotary shaft mounting hole (21) which allows the rotary shaft (1) to penetrate; the hole wall of the rotary shaft mounting hole (21) is provided with two opposite second planes (22); the second planes (22) match the first planes (111) on the corresponding sides. The at least one shaft oil groove (14) is formed in the at least one first plane (111) and extends in the axial direction of the shaft body, and the shaft oil groove (14) communicates with the shaft oil holes (13). By means of the described pump body assembly, the rotary shaft (1) and the piston (2) may be better lubricated therebetween, thereby reducing the wear and tear therebetween.

IPC Classes  ?

• F04C 18/344 - Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member

Abstract

A head fixing device of a compressor, the compressor and a refrigeration device. The head fixing device of the compressor comprises a cylinder base (10) and a cylinder cover (20). The cylinder cover (20) is connected to the cylinder base (10) by means of a fastener (40). The cylinder base (10) has a compression cavity (11) and an assembly hole (12) used for fixing the fastener (40); a noise reduction cavity (70) provided on the cylinder base (10); and communication channels provided in the cylinder base (10) and the cylinder cover (20) and communicated with the assembly hole (12), the noise reduction cavity (70), and the compression cavity (11). The head fixing device of the compressor is compact in structure, shortens the length of an exhaust passage, and reduces the exhaust pressure.

IPC Classes  ?

• F04B 39/12 - CasingsCylindersCylinder headsFluid connections

Abstract

Disclosed is a compressor, comprising a moving disk (1), cooling pipes and a crankshaft (3), wherein the cooling pipes comprise an inlet pipe (9) and an outlet pipe (10); an axial through hole (16) is provided at the center of the moving disk (1); a sealing portion of the moving disk (1) is provided with a sealing groove (15); a mounting hole (17) is provided in the crankshaft (3); the cooling pipes are arranged in the crankshaft (3) in a penetrating manner; the cooling pipes enter from a tail portion of the crankshaft (3), pass through the mounting hole (17), the axial through hole (16) and the sealing groove (15), and then return along an original path thereof; and part of each cooling pipe is arranged in the sealing portion of the moving disk (1), and the cooling pipes move synchronously with the moving disk (1) and rotate relative to the crankshaft (3). By providing the cooling pipes, the temperature of a sealing component of the compressor can be effectively reduced, thereby prolonging the service life of the sealing component.

IPC Classes  ?

• F04C 18/02 - Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
• F04C 29/04 - HeatingCoolingHeat insulation

Abstract

A tangential motor, a tangential motor rotor and a rotor core thereof are provided. The rotor core includes a rotor body and magnetic steel grooves provided on the rotor body. 2N magnetic isolation holes are provided in a rotor magnetic pole between every two adjacent magnetic steel grooves. The 2N magnetic isolation holes are symmetrically provided at two sides of a magnetic pole center line of the rotor magnetic pole. A width of each of the magnetic isolation holes increases from a circle center of the rotor body to an outer side of the rotor body. Outer side hole surfaces, close to the outer side of the rotor body, of the magnetic isolation holes are arc-shaped surfaces which are concentrically arranged with the rotor body. The rotor core is able to reduce the vibration noise of the motor and increase the efficiency of the motor.

IPC Classes  ?

• H02K 1/279 - Magnets embedded in the magnetic core
• H02K 29/03 - Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with a magnetic circuit specially adapted for avoiding torque ripples or self-starting problems
• H02K 1/276 - Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]

Abstract

A pump body component, a variable-capacity compressor and an air regulation system. The pump body component comprises a first compression portion (1), a second compression portion (2) and a partition plate (3); the first compression portion (1) and the second compression portion (2) are stacked into a whole body by means of a rotary shaft (4) and both use the partition plate (3); the first compression portion (1) comprises a first cylinder (11), a first roller (12), a first sliding sheet (13) and a first bearing (14); the first roller (12) is eccentrically installed on the rotary shaft (4) and in the first cylinder (11) and forms a first working chamber; the first sliding sheet (13) is inserted into a first sliding sheet groove (111), and the head end of the first sliding sheet (13) abuts against the outer peripheral wall of the first roller (12) to divide the first working chamber into an air suction chamber and an exhaust chamber; the first sliding sheet groove (111) is provided with a pneumatic drive chamber for the first sliding sheet (13); the pneumatic drive chamber comprises a tail end accommodating portion (112) and a capacity enlarging portion (113); and the capacity enlarging portion (113) is in communication with the tail end accommodating portion (112). The present structure may greatly lower the pressure pulsation in a sealing chamber of the sliding sheet groove and reduce the contact force between the sliding sheet and the roller, thereby reducing the noise when operating and improving the reliability.

IPC Classes  ?

• F04C 18/356 - Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
• F04C 28/18 - Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by varying the volume of the working chamber

Abstract

A crankshaft bearing of a compressor and the compressor. The crankshaft bearing of the compressor comprises a bearing body (1); the upper end surface of the bearing body (1) is located below a rotor assembly (2) of the compressor, and the upper end surface of the bearing body (1) is also provided with grooves (12); rolling bodies (3) are provided in the grooves (12); the rolling bodies (3) can be connected to the lower end surface of the rotor assembly (2), so that the rotor assembly (2) is supported by means of the rolling bodies (3).

IPC Classes  ?

• F16C 9/02 - Crankshaft bearings
• F04C 29/00 - Component parts, details, or accessories, of pumps or pumping installations specially adapted for elastic fluids, not provided for in groups

Abstract

An assembly structure, comprising: an intake muffler (10), a cylinder head (20), and a circlip (30), the circlip (30) being mounted between the intake muffler (10) and the cylinder head (20). The circlip (30) comprises: a body (31); a first positioning portion (32), provided on the body (31) and tightly clamped on the intake muffler (10); and a second positioning portion (33), provided on the body (31) and tightly clamped on the cylinder head (20). Further provided is a compressor comprising the assembly structure. Said structure can fix the columnar structure of the intake muffler (10) and the cylinder head (20) at the same time, and can precisely position the intake muffler (10), ensuring tight fit between the intake muffler and a valve plate.

IPC Classes  ?

• F04B 39/12 - CasingsCylindersCylinder headsFluid connections
• F04B 39/00 - Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups

Abstract

A method and a device for stopping a magnetic suspension centrifuge includes: a frequency-conversion cabinet connected with the magnetic suspension centrifuge judges a stopping state of the magnetic suspension centrifuge; if the stopping state is judged to satisfy a preset condition, the frequency-conversion cabinet switches a operating mode of a motor of the magnetic suspension centrifuge from an electrically-powered state mode to a power generation state mode, so as to convert the inertia mechanical energy of the motor when the motor stops into electric energy; and the frequency-conversion cabinet leads the electric energy into a power grid, so as to consume the electric energy. Accordingly, the problem that the motor of the magnetic suspension centrifuge cannot be rapidly switched from an operating state to a stopping state when an exception occurs to a bearing or a bearing controller in the prior art can be solved.

IPC Classes  ?

• B04B 9/10 - Control of the driveSpeed regulating
• B04B 9/12 - Suspending rotary bowls
• B04B 13/00 - Control arrangements specially designed for centrifugesProgramme control of centrifuges
• F16C 32/04 - Bearings not otherwise provided for using magnetic or electric supporting means
• B04B 11/04 - Periodical feeding or dischargingControl arrangements therefor

Abstract

Disclosed is a compressor including a cylinder, an upper flange and a lower flange respectively provided on an upper side and a lower side of the cylinder, and a main shaft having a sliding vane mounting portion. The sliding vane mounting portion of the main shaft is provided with at least two sliding vanes. Two rotary plates are provided. One rotary plate is provided between the sliding vane mounting portion and the upper flange, and another rotary plate is provided between the sliding vane mounting portion and the lower flange. Each of the rotary plates is fixedly connected with the main shaft and provided with exhaust openings in one-to-one correspondence with the exhaust sides of the sliding vanes and exhaust valves configured to control opening/closing of respective exhaust openings. The upper flange and the lower flange are both provided with exhaust passages corresponding to respective exhaust openings of each rotary plate.

IPC Classes  ?

• F04C 29/12 - Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
• F04C 29/00 - Component parts, details, or accessories, of pumps or pumping installations specially adapted for elastic fluids, not provided for in groups
• F04C 18/344 - Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member

Abstract

A compressor, a refrigeration circulation system, and an air conditioner. The compressor comprises a housing (1), a first-level compression component (2), a second-level compression component (3), and a communicating pipe (4). The housing (1) is provided with an exhaust pipe (9). The first-level compression component (2) comprises a first air inlet passage (5) and a first exhaust passage (6). The second-level compression component (3) comprises a second air inlet passage (7) and a second exhaust passage (8). The first exhaust passage (6) is communicated with an inner cavity of the housing (1). Both ends of the communicating pipe (4) are connected to the exhaust pipe (9) and the second air inlet passage (7), separately. A refrigerant enters the first-level compression component (2) from the first air inlet passage (5), is compressed by the first-level compression component (2), and then enters the inner cavity of the housing (1) by means of the first exhaust passage (6), sequentially flows through the exhaust pipe (9) and the communicating pipe (4), enters the second-level compression component (3) by means of the second air inlet passage (7), is compressed by the second-level compression component (3), and is drained from the second exhaust passage (8). In this way, the pressure borne by the housing (1) can be reduced, and manufacturing costs are saved.

IPC Classes  ?

• F04C 23/00 - Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluidsPumping installations specially adapted for elastic fluidsMulti-stage pumps specially adapted for elastic fluids
• F04C 18/324 - Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having both the movement defined in group and relative reciprocation between the co-operating members with vanes hinged to the inner member and reciprocating with respect to the outer member
• F04C 29/12 - Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet

Abstract

Disclosed is a rotating cylinder enthalpy-adding piston compressor. The compressor is a two-stage rotating cylinder piston compressor, including a first-stage rotating gas cylinder, a first gas cylinder liner, a first piston, and a second-stage rotating gas cylinder, a second gas cylinder liner, and a second piston, and further including an enthalpy-adding assembly connected between the first-stage rotating gas cylinder and the second-stage rotating gas cylinder for supplying gas and adding enthalpy between the two stages of rotating cylinders. By means of adopting a two-stage rotating cylinder piston compressor and arranging an enthalpy-adding assembly between the two stages of rotating cylinders, an enthalpy-adding function is achieved for the rotating cylinder piston compressor and the air conditioning system having same, thereby increasing the enthalpy value of the refrigerant in the system, improving the refrigerating and heating capabilities, improving the energy efficiency ratio and enhancing the reliability of the system.

IPC Classes  ?

• F04C 18/02 - Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
• F04C 18/356 - Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
• F04C 23/00 - Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluidsPumping installations specially adapted for elastic fluidsMulti-stage pumps specially adapted for elastic fluids
• F04C 18/32 - Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having both the movement defined in group and relative reciprocation between the co-operating members
• F04C 29/00 - Component parts, details, or accessories, of pumps or pumping installations specially adapted for elastic fluids, not provided for in groups

Abstract

A compressor pump structure has a cylinder sleeve provided between an upper flange and a lower flange; a cylinder is provided inside the cylinder sleeve; a piston is slidably arranged inside the cylinder; a volume-variable chamber is formed among the cylinder sleeve, the cylinder and the piston; a rotating shaft passes through the piston, the axis of the rotating shaft being eccentrically disposed with respect to the axis of the cylinder with a fixed eccentricity; the rotating shaft drives the piston and the cylinder to rotate; and the piston slides within the cylinder while rotating so as to change the volume of the volume-variable chamber. Further disclosed is a compressor which comprises a compressor pump structure.

IPC Classes  ?

• F03C 2/00 - Rotary-piston engines
• F03C 4/00 - Oscillating-piston engines
• F04C 2/00 - Rotary-piston machines or pumps
• F04C 18/00 - Rotary-piston pumps specially adapted for elastic fluids
• F04C 18/34 - Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members
• F04C 15/00 - Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups
• F04C 15/06 - Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
• F01C 21/08 - Rotary pistons
• F04C 18/344 - Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
• F04C 18/02 - Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
• F25B 49/02 - Arrangement or mounting of control or safety devices for compression type machines, plants or systems
• F04C 29/02 - LubricationLubricant separation
• F04C 23/00 - Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluidsPumping installations specially adapted for elastic fluidsMulti-stage pumps specially adapted for elastic fluids

Abstract

The present invention provides a protective structure for a magnetic bearing and a magnetic bearing assembly. The protective structure for a magnetic bearing comprises: a first radial bearing protective component, sleeved on a shaft and in a position corresponding to a magnetic bearing, a first gap being radially formed between the first radial bearing protective component and the shaft; and a second radial bearing protective component, sleeved on the shaft and in a position corresponding to the magnetic bearing, a second gap being radially formed between the second radial bearing protective component and the shaft; the height of a working gap being greater than the height of the second gap, the height of the second gap being greater than the height of the first gap. The protective structure for the magnetic bearing and the magnetic bearing assembly effectively solve the problem of lower security between a magnetic bearing and a shaft, since a protective structure for the magnetic bearing is prone to failure in the prior art.

IPC Classes  ?

• F16C 32/04 - Bearings not otherwise provided for using magnetic or electric supporting means
• H02K 7/10 - Structural association with clutches, brakes, gears, pulleys or mechanical starters
• H02K 7/09 - Structural association with bearings with magnetic bearings

Abstract

A compressor pump structure comprises a rotating shaft, a piston, a cylinder, a cylinder sleeve, a lower flange and an upper flange, the central axis of the rotating shaft being arranged eccentrically with respect to the central axis of the cylinder, the rotating shaft being slidably arranged in the piston, the piston being movably arranged in the cylinder and forming two volume-variable chambers with the cylinder, the piston comprising two first sliding planes arranged opposite one another and two first contacting planes arranged opposite one another, the first contacting plane on the upper side being in sealing contact with the upper flange, and the first contacting plane on the lower side being in sealing contact with the lower flange. Also disclosed is a compressor with the compressor pump structure.

IPC Classes  ?

• F04B 37/00 - Pumps specially adapted for elastic fluids and having pertinent characteristics not provided for in, or of interest apart from, groups
• F04B 27/06 - Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement the cylinders being movable, e.g. rotary
• F04B 19/02 - Machines or pumps having pertinent characteristics not provided for in, or of interest apart from, groups having movable cylinders
• F04B 39/12 - CasingsCylindersCylinder headsFluid connections
• F04B 39/00 - Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups
• F04C 18/34 - Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members
• F04C 18/356 - Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
• F04C 28/22 - Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by varying the volume of the working chamber by changing the eccentricity between cooperating members
• F01C 1/34 - Rotary-piston machines or engines having the characteristics covered by two or more of groups , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members
• F01C 20/22 - Control of, monitoring of, or safety arrangements for, machines or engines characterised by varying the volume of the working chamber by changing the eccentricity between cooperating members
• F01C 21/10 - Outer members for co-operation with rotary pistonsCasings
• F01C 21/08 - Rotary pistons
• F04C 15/06 - Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
• F01B 13/02 - Reciprocating-piston machines or engines with rotating cylinders in order to obtain the reciprocating-piston motion with one cylinder only
• F04C 15/00 - Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups
• F04C 18/344 - Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
• F04C 23/00 - Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluidsPumping installations specially adapted for elastic fluidsMulti-stage pumps specially adapted for elastic fluids

Abstract

Provided are a pump body assembly and an assembly method therefor. The pump body assembly comprises a first cylinder assembly (10), a second cylinder assembly (20) and a third cylinder assembly (30) sequentially arranged in the vertical direction. At least one of the first cylinder assembly (10), the second cylinder assembly (20) and the third cylinder assembly (30) is provided with a positioning detection portion (40).

IPC Classes  ?

• F04C 23/00 - Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluidsPumping installations specially adapted for elastic fluidsMulti-stage pumps specially adapted for elastic fluids
• F04C 29/00 - Component parts, details, or accessories, of pumps or pumping installations specially adapted for elastic fluids, not provided for in groups
• F04C 18/356 - Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
• F04C 28/28 - Safety arrangementsMonitoring

Abstract

A magnetic levitation bearing, a magnetic levitation rotor support assembly, and a compressor. The magnetic levitation bearing is used for supporting a rotor by acting with a thrust disc (2) on the rotor, and comprises: a radial stator iron core (5) in an annular structure which is provided on the radial outer side of the thrust disc (2) and corresponds to the thrust disc (2) in an axial direction of the rotor, the radial stator iron core (5) and the thrust disc (2) being separated by a first radial gap X1; and a radial control coil (4) which is provided on the radial stator iron core (5) and can generate radial electromagnetic force to the thrust disc (2) in a radial direction of the rotor. The magnetic levitation bearing can generate controllable radial electromagnetic force to the thrust disc in a radial direction of the rotor, and therefore, higher flexibility of the bearing can be designed, and the application range of the bearing can be effectively widened.

IPC Classes  ?

• F16C 32/04 - Bearings not otherwise provided for using magnetic or electric supporting means

Abstract

A rotor structure includes a rotor core and magnetic steel sheets. A shaft hole fixedly connected to a rotary shaft and an even number of magnetic steel grooves are formed on the rotor core along a rotation axis thereof. The magnetic steel grooves are symmetrically distributed around a periphery of the shaft hole in the rotor core, and the magnetic steel sheets are correspondingly installed in the magnetic steel grooves on a one-to-one basis. First through grooves extending axially and depressed radially are symmetrically distributed and formed around an inner surface of the shaft hole of the rotor core. First circulation holes are enclosed between the first through grooves and an outer surface of the rotary shaft. A motor includes a stator and the rotor structure arranged in an inner hole of the stator. A compressor includes the motor.

IPC Classes  ?

• H02K 1/27 - Rotor cores with permanent magnets
• H02K 1/32 - Rotating parts of the magnetic circuit with channels or ducts for flow of cooling medium

Abstract

Provided is a linear compressor comprising a cylinder, a piston, a cylinder shell, a linear motor stator, a magnetic levitation bearing and a mover. One end of the cylinder shell is sleeved on the cylinder, and another end of the cylinder shell is provided with a mounting cavity communicating with the cylinder cavity. A cavity wall of the mounting cavity is respectively provided with a stator mounting groove and a protrusion in a circumferential direction thereof. The linear motor stator is mounted in the stator mounting groove. The magnetic levitation bearing is disposed on the cavity wall of the mounting cavity. The mover includes a mover rod and a magnetic member disposed on the mover rod, and the mover rod is connected with the piston. The use of magnetic levitation bearing can avoid mechanical friction caused by direct contact of the mover with the linear motor stator.

IPC Classes  ?

• F04B 35/04 - Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric

Abstract

Disclosed are fluid machinery and a heat exchanging device having same, wherein the fluid machinery comprises: a rotating shaft (50); an air-liquid separation assembly, wherein the air-liquid separation assembly has a separation cavity (411), at least one part of the rotating shaft (50) penetrates the separation cavity (411) and is rotatable relative to the separation cavity (411), and a mixed coolant enters the separation cavity (411) and is then subject to air-liquid separation under the rotation of the rotating shaft (50); and an air cylinder (30), the air after air-liquid separation entering the air cylinder (30).

IPC Classes  ?

• F04C 18/356 - Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
• F04C 23/02 - Pumps characterised by combination with, or adaptation to, specific driving engines or motors
• B01D 45/16 - Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces generated by the winding course of the gas stream

Abstract

Provided are a motor sealing structure and a motor. The motor sealing structure comprises: a rotary shaft (1), a bearing (2), which is sleeved on the rotating shaft (1). A shaft shoulder structure is arranged on an outer peripheral wall of the rotating shaft (1) at a position corresponding to the bearing (2) along an axial direction of the rotating shaft, so as to form a cavity (4) between a portion of the bearing (2) and the shaft shoulder structure. and a fan blade structure (3), which is sleeved at one end of the rotating shaft (1) and extends in the axial direction of the rotating shaft (1) to the position of the bearing (2), and is inserted into the cavity (4). With the present solution, the motor can be cooled and sealed by the blades, so that the blade structure is in contact with an inner ring of the bearing and rotates synchronously with the inner ring of the bearing. There is no need to increase the sealing element, preventing the shaft from directly contacting the sealing element, and with no energy loss. The solution in this invention solves the problem of energy loss of the commonly used sealing method, ensures the performance of the motor, improves the efficiency, and has the advantages of simple structure and convenient assembly, and can be installed according to normal pressing. There is no need of additional parts, which saves costs.

IPC Classes  ?

• H02K 5/16 - Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
• H02K 7/14 - Structural association with mechanical loads, e.g. with hand-held machine tools or fans

Abstract

A power supply system for a magnetic bearing and a control method therefor. The system comprises: a rectifying and filtering circuit (1) for performing rectifying and filtering processing on an alternating-current input power source, so as to obtain a first direct-current bus voltage and then divide same into two paths, wherein one path of the first direct-current bus voltage supplies power to a motor controller (5) of an eclectic motor (6) that a magnetic bearing (3) belongs to; a power acquisition circuit (9) for acquiring power from the other path of the first direct-current bus voltage, so as to obtain a second direct-current bus voltage, wherein the second direct-current bus voltage is within an allowable input voltage range of a DC-DC power source (2); and the DC-DC power source (2) for converting the second direct-current bus voltage into a third direct-current bus voltage and supplying power to a bearing controller (4) of the magnetic bearing (3). The power supply system for a magnetic bearing and the control method therefor can overcome the defects in the prior art, such as a poor power supply stability, a complex structure and poor reliability.

IPC Classes  ?

• F16C 32/04 - Bearings not otherwise provided for using magnetic or electric supporting means

Abstract

Disclosed are a compressor (100) and an air-conditioning system having same. The compressor (100) comprises a housing (10), a pump body assembly and an enthalpy-adding component (70), wherein the pump body assembly comprises: a first-level compression cylinder (20) and a second-level compression cylinder (30) both arranged in the housing (10); and a central cavity (40) arranged in the housing (10), wherein a refrigerant flowing out from the first-level compression cylinder (20) passes through the central cavity (40) and then enters the second-level compression cylinder (30), the central cavity (40) is provided with a supplementary air inlet (41) in communication with the enthalpy-adding component (70), and a working volume V1 of the first-level compression cylinder (20) and a working volume V2 of the second-level compression cylinder (30) meet the following condition that a value range of V2/V1 is 0.56 - 0.75.

IPC Classes  ?

• F04B 39/00 - Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups
• F04B 39/12 - CasingsCylindersCylinder headsFluid connections
• F25B 1/10 - Compression machines, plants or systems with non-reversible cycle with multi-stage compression
• F25B 31/00 - Compressor arrangements
• F04C 23/00 - Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluidsPumping installations specially adapted for elastic fluidsMulti-stage pumps specially adapted for elastic fluids

Abstract

Provided are a connecting wire structure of a magnetic bearing, a compressor, and an air conditioner. The connecting wire structure of a magnetic bearing comprises a circuit board, and is used to electrically connect a control coil of a magnetic bearing to an external power supply. There are two or more magnetic bearings. The control coils of the two or more magnetic bearings can be electrically connected to the circuit board. The circuit board can be connected to the external power supply. The present invention has reasonable design and a simple structure, and can realize integration of connecting wires of multiple magnetic bearings, thereby simplifying a connection operation, and improving production efficiency while increasing reliability of the connecting wires.

IPC Classes  ?

• H01R 12/51 - Fixed connections for rigid printed circuits or like structures
• H01R 31/06 - Intermediate parts for linking two coupling parts, e.g. adapter
• H01F 27/28 - CoilsWindingsConductive connections
• H02K 7/09 - Structural association with bearings with magnetic bearings

Abstract

A compressor, a refrigeration system and an air conditioner, the compressor comprising: a crankshaft (1), a first air cylinder (2) having a first cavity (21), and a second air cylinder (3) having a second cavity (31); the crankshaft (1) is sequentially provided thereon with a first roller (11) and a second roller (12), and the crankshaft (1) penetrates the first air cylinder (2) and the second air cylinder (3) such that the first roller (11) and the second roller (12) are located in the first cavity (21) and the second cavity (31) respectively; the first air cylinder (2) is provided with a first air intake passage (22) and a first air outlet, and a first refrigerant may enter the first cavity (21) by means of the first air intake passage (22) and be discharged from the first air outlet; the second air cylinder (3) is provided with a second air intake passage (32) and a second air outlet, and a second refrigerant may enter the second cavity (31) by means of the second air intake passage (22) and be discharged from the second air outlet. The compressor may simultaneously compress two refrigerants, and optimize the usage states of the two refrigerants, improving the efficiency of the compressor.

IPC Classes  ?

• F04C 18/356 - Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
• F25B 31/00 - Compressor arrangements

Abstract

A glue sealing method for a magnetic levitation bearing stator assembly (100), a glue sealing tool and a magnetic levitation bearing. The glue sealing method for a magnetic levitation bearing stator assembly (100) comprises the following steps: a. after the stator assembly (100) is assembled, mounting the stator assembly (100) into a glue sealing tool, with a glue injection space (10) being formed between an outer circumferential surface of the stator assembly (100) and the glue sealing tool; b. after the stator assembly (100) is mounted, injecting glue liquid into the glue injection space (10); and c. after the glue injection is completed, heating the glue sealing tool having the stator assembly (100) inside, so that the glue liquid in the glue injection space is cured and coated on the outer circumferential surface of the stator assembly (100).

IPC Classes  ?

• F16C 32/04 - Bearings not otherwise provided for using magnetic or electric supporting means
• F16C 33/00 - Parts of bearingsSpecial methods for making bearings or parts thereof

Abstract

A magnetic levitation bearing assembly, including: a magnetic levitation bearing, a shell, and a working clearance adjusting device; the magnetic levitation bearing includes a first iron core, a second iron core and a thrust disk; the working clearance adjusting device is arranged between a radial inner periphery of the shell and the thrust disk along the radial direction, and between the shell and the second iron core along the axial direction; an axial end of the working clearance adjusting device is abutted against the second iron core, a void gap is provided between the shell and the second iron core, an adjustment on the magnetic levitation bearing working clearance is made possible by altering the length between two axial ends of the working clearance adjusting device, such that the working clearance is consistent with a design value.

IPC Classes  ?

• F16C 32/04 - Bearings not otherwise provided for using magnetic or electric supporting means
• F04D 29/058 - Bearings magneticBearings electromagnetic

Abstract

A vibration reduction fixing frame, used to connect a vibrating object to an object to be connected. The vibration reduction fixing frame comprises: a fixing frame main body (10), adapted to be connected to a vibrating object; and a cushioning leg (30), wherein one end of the cushioning leg is connected to the fixing frame main body, and the other end is adapted to be connected to the object to be connected. The cushioning leg has at least one bent section (31), such that after the vibrating object is connected to the object to be connected, favorable elastic cushioning performance of the cushioning leg of the vibration reduction fixing frame reduces amplitude and vibration propagation, and effectively reduces noise. In addition, no rubber pad is used for cushioning, thereby solving the problem of gradually deteriorating cushioning performance. The invention further relates to a power assembly comprising the vibration reduction fixing frame and a water purifier comprising the power assembly.

IPC Classes  ?

• F16M 5/00 - Engine beds, i.e. means for supporting engines or machines on foundations
• F16M 7/00 - Details of attaching or adjusting engine beds, frames, or supporting-legs on foundation or baseAttaching non-moving engine parts, e.g. cylinder blocks
• F16F 15/04 - Suppression of vibrations of non-rotating, e.g. reciprocating, systemsSuppression of vibrations of rotating systems by use of members not moving with the rotating system using elastic means

Abstract

A stator skeleton of a radial magnetic bearing. The stator skeleton is provided with multiple skeleton blocks (1) connected end to end in sequence in a circumferential direction, and the skeleton blocks (1) have one-to-one correspondence to radial control directions of the radial magnetic bearing. By means of the configuration, a wire can be wound on each skeleton block independently, so as to prevent an operator from winding a copper wire on different skeleton blocks, thereby reducing the possibility of errors of the operator during wire winding, and improving the yield of stator skeleton products. Moreover, also disclosed is a stator assembly of a radial magnetic bearing, and a radial magnetic bearing.

IPC Classes  ?

• F16C 32/04 - Bearings not otherwise provided for using magnetic or electric supporting means
• F16C 33/00 - Parts of bearingsSpecial methods for making bearings or parts thereof

Abstract

A motor, motor assembly, and electronic appliance apparatus. The motor comprises: a stator (30), a rotor (20) configured to be drive-connected to a rotating shaft (50), a connection sleeve (40) sleeved at the stator on an inner side and rotatably fitted to the rotating shaft; and a support component (110) fixedly supporting the connection sleeve and fixed relative to the stator. The motor employs the support component fixed relative to the stator to fixedly support the connection sleeve, enabling fixation of the connection sleeve. The connection sleeve is sleeved at the stator on the inner side and configured to be rotatably fitted to the rotating shaft, so as to support a section of the rotating shaft corresponding to the stator thereby, thus decreasing an unsupported length of the rotating shaft, improving rotational stability of the rotor, reducing vibration of the motor during operation and facilitating fixation of the connection sleeve. The present invention enables shortening of the rotating shaft reducing the space occupied by the entire motor.

IPC Classes  ?

• H02K 5/16 - Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields

Abstract

A tangential motor, a tangential motor rotor and a rotor core thereof, the rotor core comprising a rotor body (1) and magnetic steel grooves (2) formed on the rotor body (1), wherein 2N magnetic isolation holes (11) are formed in rotor magnetic poles between every two adjacent magnetic steel grooves (2) and are symmetrically formed at the two sides of the magnetic pole center line of the rotor magnetic poles; the widths of the magnetic isolation holes (11) increase from the circle center of the rotor body (1) to the outer side of the rotor body (1), and outer side hole surfaces, close to the outer side of the rotor body (1), of the magnetic isolation holes (11) are arc-shaped surfaces which are concentrically arranged with the rotor body (1). The described rotor core may reduce the vibration noise of the motor and increase the efficiency of the motor.

IPC Classes  ?

• H02K 1/27 - Rotor cores with permanent magnets
• H02K 29/03 - Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with a magnetic circuit specially adapted for avoiding torque ripples or self-starting problems

Abstract

A tangential motor, a tangential motor rotor and a rotor iron core thereof. The rotor iron core comprises a rotor body (1) and permanent magnet slots (2) provided on the rotor body (1), a rotor magnetic pole between two adjacent permanent magnet slots (2) being provided with a fixing hole (11) for fixing a rotor punching and a magnetic shield hole (12); the magnetic shield hole (12) is located at the outer side of the fixing hole (11) along the radial direction of the rotor body (1), the width of the magnetic shield hole (12) gradually increasing along the direction from the outer side of the rotor body (1) to the center of the circle thereof. The rotor iron core reduces the vibration noise of the motor, and improves the motor efficiency.

IPC Classes  ?

• H02K 1/27 - Rotor cores with permanent magnets
• H02K 29/03 - Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with a magnetic circuit specially adapted for avoiding torque ripples or self-starting problems

Abstract

An axial magnetic bearing includes a bearing body and a protective device. The bearing body includes a stator and a rotor. The protective device includes a first assembly fixedly mounted relative to the stator and a second assembly fixedly mounted relative to the rotor. One of the first assembly and the second assembly includes a first stopping portion, and the other of the first assembly and the second assembly includes a second stopping portion and a third stopping portion. A part of the first stopping portion is axially located between the second stopping portion and the third stopping portion. A protection gap of the protective device is smaller than a working gap of the bearing body.

IPC Classes  ?

• F16C 32/04 - Bearings not otherwise provided for using magnetic or electric supporting means
• H02K 7/10 - Structural association with clutches, brakes, gears, pulleys or mechanical starters
• H02K 7/09 - Structural association with bearings with magnetic bearings

Abstract

A compressor pump body, comprising a crankshaft (1) and an oil delivery structure (2), the crankshaft (1) being provided with an oil drain hole (11); the oil delivery structure (2) is used for delivering a refrigeration oil drained from the oil drain hole (11) to the bottom of the compressor pump body along a flow passage spaced apart from a gaseous refrigerant. A compressor and an air conditioner having the compressor pump body. As the oil delivery structure separates the refrigeration oil from the gaseous refrigerant, the flow resistance of the refrigerant to the refrigeration oil and the dissolution of the refrigeration oil in the refrigerant can be reduced, further improving the return rate of the refrigeration oil. In addition, the invention effectively reduces the refrigeration oil content in the refrigerant and guarantees that the refrigeration oil at the bottom of the compressor pump body is sufficient, ensuring the components of the compressor to be sufficiently lubricated, reducing the power consumption of the compressor, improving the reliability of the compressor.

IPC Classes  ?

• F04C 29/02 - LubricationLubricant separation

Abstract

A synchronous reluctance motor rotor, including: a rotor core, wherein the rotor core includes a plurality of magnetic-flux barrier groups, and each magnetic-flux barrier group includes at least two magnetic-flux barriers provided at an interval in a radial direction of the rotor core; the rotor core further includes magnetic bridges, the magnetic bridges are disposed within the magnetic-flux barriers and connect inner surfaces of the magnetic-flux barriers with outer surfaces of the magnetic-flux barriers, and a distance between the magnetic bridges and an outer edge of the rotor core is no less than a predetermined distance.

IPC Classes  ?

• H02K 1/24 - Rotor cores with salient poles
• H02K 1/28 - Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures
• H02K 1/22 - Rotating parts of the magnetic circuit

Abstract

Provided are a compressor and a refrigeration system having the same. The compressor includes: a housing, a lower flange structure, a first compression cylinder and a second compression cylinder. The first compression cylinder includes a cylinder body, a roller and a sliding vane. A sliding vane groove is provided on an inner wall of the cylinder body. The roller is provided in the cylinder body. The sliding vane is provided in the sliding vane groove and matched with the roller. A first reset member is provided between the sliding vane and the sliding vane groove. A lock groove in positional correspondence to a pin groove is provided on the sliding vane. A first cavity is formed between the sliding vane and the sliding vane groove. A second cavity is formed between a pin and the sliding vane. A third cavity is formed between the pin and the pin groove.

IPC Classes  ?

• F04C 18/356 - Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
• F04C 29/12 - Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
• F25B 31/02 - Compressor arrangements of motor-compressor units
• F01C 21/08 - Rotary pistons
• F25B 13/00 - Compression machines, plants or systems, with reversible cycle
• F04C 28/06 - Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids specially adapted for stopping, starting, idling or no-load operation
• F04C 28/02 - Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids specially adapted for several pumps connected in series or in parallel
• F04C 23/00 - Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluidsPumping installations specially adapted for elastic fluidsMulti-stage pumps specially adapted for elastic fluids
• F25B 41/00 - Fluid-circulation arrangements
• F01C 21/10 - Outer members for co-operation with rotary pistonsCasings
• F25B 41/04 - Disposition of valves
• F24F 11/86 - Control systems characterised by their outputsConstructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
• F24F 5/00 - Air-conditioning systems or apparatus not covered by group or

Abstract

Provided are an absolute signal correction method and an absolute signal correction system, the absolute signal correction method comprising: acquiring a first value of an original absolute signal (6a); acquiring a second value of the original absolute signal (6a) if a system clock reaches the rising edge of an increment signal (5a); assigning a current value of the absolute signal if the absolute value of the difference between the second value and the first value is not equal to 1, so that the absolute value of the difference value between the current value and the historical value of the absolute signal is equal to 1. According to the method, the absolute signal can be corrected, so that the error between the absolute signal and the increment signal is eliminated, thus a correct absolute position is outputted when the absolute signal is combined with the increment signal by an absolute encoder.

IPC Classes  ?

• G01D 5/244 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means influencing characteristics of pulses or pulse trainsMechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means generating pulses or pulse trains
• G01D 5/245 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means influencing characteristics of pulses or pulse trainsMechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means generating pulses or pulse trains using a variable number of pulses in a train