Abstract

Disclosed are a compressor and an air conditioner having same. The compressor includes: a first-stage cylinder, including a first-stage compression chamber; and a second-stage cylinder, including a second-stage compression chamber and a gas storage chamber. Refrigerant flowing out of the first-stage compression chamber flows through the storage chamber and enters into the second-stage compression chamber, and a flow area of the gas storage chamber is larger than an area of a gas outlet of the first-stage compression chamber. The compressor effectively solves problems that power consumption of the compressor is increased and performance is reduced due to large resistance loss in the cylinder 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 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

A compressor and an air conditioner are provided. The compressor includes a main shaft, a first cylinder and a second cylinder. The main shaft sequentially passes through the first cylinder and the second cylinder and can rotate therein, to compress refrigerant entering the first cylinder and the second cylinder. The second cylinder has an inner cavity capable of receiving the main shaft. A volume variation control cavity in communication with the inner cavity is provided in a side wall of the inner cavity, and a sliding vane is provided inside the volume variation control cavity. The volume variation control cavity can be selectively connected to a gas inlet and a gas outlet of the compressor, to change gas pressure in the volume variation control cavity, and drive the sliding vane to abut against or be separated from the main shaft by the gas pressure in the volume variation control cavity.

IPC Classes  ?

• F04C 28/20 - 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 form of the inner or outer contour of the working chamber
• 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 14/20 - Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the volume of the working chamber by changing the form of the inner or outer contour of the working chamber
• F04C 28/26 - 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 using bypass channels
• F04C 29/12 - Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet

Abstract

An asynchronous starting and synchronous reluctance electric motor rotor, an electric motor and a compressor. The asynchronous starting and synchronous reluctance electric motor rotor includes a rotor core. The rotor core includes: a first magnetic barrier structure, with multiple groups of first magnetic barrier portions arranged at interval along a d-axis of the rotor core; and a second magnetic barrier structure, including two communicating magnetic barrier slots arranged at interval along the d-axis, the two communicating magnetic barrier slots being respectively located on two sides of the first magnetic barrier structure, the communicating magnetic barrier slots being arc-shaped slots extending circumferentially along the rotor core, and slot walls of two ends of the arc-shaped slots being arranged parallel to a q-axis.

IPC Classes  ?

• H02K 17/16 - Asynchronous induction motors having rotors with internally short-circuited windings, e.g. cage rotors
• H02K 1/24 - Rotor cores with salient poles

Abstract

The present disclosure provides a multi-stage compressor and an air conditioner having the same. The multi-stage compressor includes: a first-stage cylinder including a first-stage compression cavity and a first vane disposed in the first-stage compression cavity; a second-stage cylinder including a second-stage compression cavity and a second vane disposed in the second-stage compression cavity, wherein a refrigerant flowing out from the first-stage compression cavity enters the second-stage compression cavity; a linkage structure disposed between the first vane and the second vane, so that the second vane is capable of moving with a movement of the first vane and maintain contact with a roller in the second-stage compression cavity.

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 18/356 - 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
• F01C 21/08 - Rotary pistons

Abstract

Disclosed are a variable-capacity control structure, a compressor and a variable-capacity control method thereof. The variable-capacity control structure includes: a variable-capacity assembly and a sliding vane restraint unit; the variable-capacity assembly is provided outside a housing of a compressor to which the variable-capacity control structure is attached, and is configured to act in a setting order; the sliding vane restraint unit is provided inside a pump body of the compressor, and is configured to cause a variable-capacity cylinder assembly in the compressor to be in a working state or an idling state under controlling the variable-capacity assembly to act in the setting order. By the solution of the present disclosure, advantages that vibration is reduced, compressor is not easy to shut down and pipeline is not easy to break are implemented.

IPC Classes  ?

• F03C 2/00 - Rotary-piston engines
• F03C 4/00 - Oscillating-piston engines
• F04C 2/00 - Rotary-piston machines or pumps
• F04C 15/00 - Component parts, details or accessories of machines, pumps or pumping installations, 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 28/18 - 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

Abstract

Disclosed are a compressor, an air conditioner and a method for assembling a compressor, wherein the compressor includes a housing, a first cylinder assembly and a second cylinder assembly. The first cylinder assembly includes a first cylinder. The first cylinder assembly has a first discharge channel. A first end of the first discharge channel is in communication with the first cylinder, a second end of the first discharge channel is in communication with a receiving chamber. The second cylinder assembly includes a second cylinder; the second cylinder is disposed adjacent to the first cylinder. The second cylinder assembly has a second discharge channel which is disposed relatively independent of the first discharge channel. A first end of the second discharge channel is connected to the second cylinder; a second end of the second discharge channel is in communication with a receiving chamber.

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 23/00 - 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 28/06 - 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

A sliding vane structure, a pump assembly, and a compressor. The sliding vane structure comprises: a hinge connection sliding vane (10), a first end of the hinge connection sliding vane (10) being hinge-connected to a roller (40), a middle portion of the hinge connection sliding vane (10) having an accommodation cavity (11), and a vent hole (12) communicating with the accommodation cavity (11) being provided on the hinge connection sliding vane (10); and a variable-volume sliding vane assembly (20), the variable-volume sliding vane assembly (20) being movably provided in the accommodation cavity (11), and a refrigerant being introduced into the accommodation cavity (11) via the vent hole (12), such that the variable-volume sliding vane assembly (20) can be in an operation position in which the variable-volume sliding vane assembly (20) is connected to the roller (40), or a dismount position in which the variable-volume sliding vane assembly (20) is separated from the roller (40). In operation, the sliding vane having the above structure reduces a contact area between the variable-volume sliding vane assembly (20) and the roller (40), thereby reducing noise generated by the variable-volume sliding vane assembly (20), and improving the practicability and reliability of a compressor having the sliding vane structure.

IPC Classes  ?

• 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 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 sealing structure and a scroll air compressor having same. The sealing structure comprising: a moving scroll plate (10), comprising a moving plate scroll (11), the moving plate scroll (11) having disposed thereon a moving plate scroll groove (12), the moving plate scroll groove (12) having disposed therein a moving plate wear-resistant sealing strip (30); a stationary scroll plate (20), comprising a stationary plate scroll (21) matching the moving plate scroll (11), the stationary plate scroll (21) having disposed thereon a stationary plate scroll groove (22), the stationary plate scroll groove (22) having disposed therein a stationary plate wear-resistant sealing strip (40); a wear-resistant sealing strip (30) being divided into sections, comprising a high-temperature, high-pressure section (30a) and a medium-temperature, medium-pressure section (30b). The present sealing structure decreases sealing strip material use and maintenance costs; a cushioning contact surface between the wear-resistant sealing strip (30) and a scroll plate surface is flat, increasing sealing and noise-reduction functionality; a bottom surface of the wear-resistant sealing strip (30) is loaded onto a sealing ring having a circular or round tube-shaped cross section, increasing anti-vibration and cushioning functionality; the invention increases air compressor functionality, and also lowers air compressor usage costs.

IPC Classes  ?

• F04C 27/00 - Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids
• 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

The present disclosure provides a compressor and an air conditioner having the same. The compressor includes: a main shaft with a convex portion and a slip sheet; a cylinder; and an air inlet and outlet device including a disk body and an air suction port including an outer side, an inner side and a connecting side located between the outer side and the inner side, wherein the outer side is overlapped with an inner wall of the cylinder or is located on the inner side of the inner wall of the cylinder, the inner side is overlapped with an outer wall of the convex portion or is located on the outer side of the convex portion, and the connecting side is overlapped with a side wall of the slip sheet or is located on the inner side of the side wall of the slip sheet.

IPC Classes  ?

• F04C 29/12 - Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
• F24F 11/47 - Responding to energy costs
• F04C 27/00 - Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids
• F16C 23/06 - Ball or roller bearings
• F24F 1/08 - Compressors specially adapted for separate outdoor units
• F24F 11/46 - Improving electric energy efficiency or saving

Abstract

Disclosed are a pump body and a sliding-vane compressor. The pump body comprises: an air cylinder assembly (10), the air cylinder assembly (10) comprising a cylinder body (11) and a rotary bearing cylinder (12) rotationally arranged therein; an upper flange (20) and a lower flange (30); the upper flange (20) and the lower flange (30) being respectively arranged at two end faces of the air cylinder assembly (11); and the end faces of the rotary bearing cylinder(12) being respectively in rolling contact with the upper flange (20) and the lower flange (30). As the end faces of the rotary bearing cylinder (12) are respectively in rolling contact with the upper flange (20) and the lower flange (30), the problem of friction abrasion of the end faces of the rotary bearing cylinder (12) can be effectively relieved in the actual working process, thereby prolonging the service life of the rotary bearing cylinder (12)and improving the reliability of the compressor.

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
• 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 air compressor and vehicle having the same. The air compressor comprises: a compressor pump assembly, which has an air duct that is in communication with the air outlet of a fan assembly; a cooling device (9), which is used to cool the compressed air generated by the compressor pump assembly, wherein the cooling device (9) is connected to the air outlet of the air duct. Applying the present technical solution may solve the problem in existing technology of low heat-dissipating efficiency of air compressors.

IPC Classes  ?

• F04C 29/04 - HeatingCoolingHeat insulation

Abstract

A bearing assembly and a compressor comprising same. The bearing assembly comprises: a cage component (50), a stationary ring (40), and a rotary ring (10). The cage component (50) is disposed between the stationary ring (40) and the rotary ring (10). Lubrication channels are provided in an end face of the rotary ring (10). The bearing assembly solves the problem that the end face of the rotary ring (10) of the bearing assembly in the prior art is worn excessively.

IPC Classes  ?

• F16C 33/66 - Special parts or details in view of lubrication
• F04C 29/02 - LubricationLubricant separation

Abstract

A silencer, a compressor assembly, and a refrigerator. The silencer comprises: a housing (10), which comprises a cavity, an air inlet (11), and an air outlet (12), the air inlet (11) and the air outlet (12) being separately in communication with the cavity; and a separation member (20) provided in the housing (10), the separation member (20) separating the cavity into a resonant cavity and a silencer cavity which are isolated from each other, the resonant cavity being only in communication with the air inlet (11), and the silencer cavity being in communication with both the air inlet (11) and the air outlet (12).

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

A pump body and a compressor having same, the pump body comprising: a first flange (10) and a second flange (20); a bearing (30), the bearing (30) having an inner ring (31), the inner ring (31) being rotatably provided between the first flange (10) and the second flange (20), a first end face (311) of the inner ring (31) abutting against the first flange (10), and a second end face (312) of the inner ring (31) abutting against the second flange (20); a first lubrication structure is provided between the inner ring (31) and the first flange (10), so as to form a lubricant film between the inner ring (31) and the first flange (10); and/or a second lubrication structure is provided between the inner ring (31) and the second flange (20), so as to form a lubricant film between the inner ring (31) and the second flange (20).

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
• 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 and a refrigeration cycle apparatus, relating to the technical field of refrigeration. The mainly adopted solution is that: the compressor comprises a housing, as well as a driving assembly (2), a compression assembly and an expansion assembly (4) provided in the housing, wherein the compression assembly is drivingly connected to the driving assembly, and is driven by the driving assembly to perform multistage compression on a refrigerant; the expansion assembly is connected to the driving assembly, and is configured to expand the refrigerant compressed by the compression assembly. A refrigeration cycle apparatus comprises the compressor. By providing a compressor capable of not only performing multistage compression on a refrigerant, but also expanding the refrigerant subjected to the multistage compression and recovering expansion power, and a refrigeration cycle apparatus, the pressure difference of each stage is decreased, the leakage quantity of the refrigerant and the power consumption of the compressor are reduced. Therefore, the performance coefficients of the compressor and the refrigeration cycle device are increased.

IPC Classes  ?

• F04C 23/02 - Pumps characterised by combination with, or adaptation to, specific driving engines or motors

Abstract

A scroll compressor and a vehicle having same, the scroll compressor comprising: a support (10) and a movable scroll plate assembly, the movable scroll plate assembly being movably provided on the support (10); a partition structure (40) provided between the support (10) and the movable scroll plate assembly, a first bearing cavity being formed between the partition structure (40) and the movable scroll plate assembly, and a second bearing cavity being formed between the partition structure (40) and the support (10), the movable scroll plate assembly being provided with a first through hole (21) that is in communication with the first bearing cavity, and the support (10) being provided with a second through hole (11) that is in communication with the second bearing cavity; and a first crankshaft (50) penetrating through the partition structure (40), a first communication passage (64) that is in communication with the first bearing cavity and the second bearing cavity being formed between the first crankshaft (50) and the partition structure (40).

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

A compressor, comprising: a support (10), a first limiting structure (11) being provided on the support (10); a rotation prevention structure (40), disposed between the support (10) and a movable scroll plate assembly and provided with a first positioning structure (41) and a second positioning structure (42), the first positioning structure (41) being movably provided in the first limiting structure (11), and the second positioning structure (42) being movably disposed in a second limiting structure (21); a first suspension structure (50), working in concert with the first positioning structure (41) and the first limiting structure (11) to reserve a first predetermined gap between the first positioning structure (41) and the first limiting structure (11); and a second suspension structure (60), working in concert with the second positioning structure (42) and the second limiting structure (21) to reserve a second predetermined gap between the second positioning structure (42) and the second limiting structure (21). Also provided is a vehicle having the compressor. According to the structure, the rotation prevention structure (40) can be kept from being in contact with both the support (10) and the movable scroll plate assembly, so that generation of friction between the rotation prevention structure (40) and the support (10) and between the rotation prevention structure (40) and the movable scroll plate assembly is avoided, and no lubricating oil or lubricating grease is required by the rotation prevention structure (40).

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
• F16C 32/04 - Bearings not otherwise provided for using magnetic or electric supporting means
• F01C 17/06 - Arrangements for drive of co-operating members, e.g. for rotary piston and casing using cranks, universal joints, or similar elements

Abstract

Provided are a rotor structure, a permanent magnet assisted synchronous reluctance motor, and an electric car. The rotor structure comprises a rotor body, the rotor body being provided with a plurality of permanent magnet slot groups, the plurality of permanent magnet slot groups being arranged at intervals along the circumferential direction of the rotor body, the plurality of permanent magnet slot groups comprising first permanent magnet slot groups, each first permanent magnet slot group comprising a plurality of permanent magnet slots arranged in an outwardly sequential manner along the radial direction of the rotor body, the cross-sections of a portion of slot segments of at least one permanent magnet slot among the plurality of permanent magnet slots being S-shaped along the radial direction of the rotor body. The rotor structure effectively increases the magnetic flux generated by permanent magnets of the rotor structure, thereby increasing the electromagnetic torque per unit current of a motor provided with the rotor structure, and increasing the efficiency of the motor.

IPC Classes  ?

• H02K 1/27 - Rotor cores with permanent magnets

Abstract

Disclosed are a cylinder, a pump body assembly, a compressor, and a temperature adjusting device. The cylinder includes a cylinder body, and a first cavity and a second cavity are formed in an axial direction of the cylinder body, wherein the first cavity is in communication with the second cavity, and an inner diameter of the first cavity is greater than that of the second cavity; and when the cylinder body operates, the first cavity forms a first working cavity, and the second cavity forms a second working cavity. With such an arrangement, multiple working cavities are formed inside one cylinder body, which simplifies an installation process of the pump body assembly, and enables a pump body with the cylinder to be installed more conveniently and easily, thereby improving installation reliability of the pump body assembly.

IPC Classes  ?

• F25B 1/10 - Compression machines, plants or systems with non-reversible cycle with multi-stage compression
• 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
• 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 is a crank shaft, including a central rotation shaft, a first eccentric component, a second eccentric component, a disc partition plate and an annular partition plate, wherein the disc partition plate is disposed between the first eccentric component and the second eccentric component, and is integrally formed with the central rotation shaft, and the annular partition plate is sleeved outside the disc partition plate. The crank shaft can prevent the occurrence of leakage between the partition plate and a roller while increasing an eccentricity of the crank shaft and improving operating performances of a compressor. Further disclosed are a pump body assembly having the crank shaft and a 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
• F16C 3/14 - Features relating to lubrication
• 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

Provided are a compressor (1) and a refrigeration circulation device. The compressor (1) comprises a housing, a driving assembly (2), a compression assembly (3) and an expansion assembly (4), wherein the compression assembly (3) is connected to the driving assembly (2), and is driven by the driving assembly (2) to carry out multi-stage compression on a refrigerant; and the expansion assembly (4) is connected to the driving assembly (2), and expands the compressed refrigerant. The refrigeration circulation device comprises the compressor (1).

IPC Classes  ?

• F04C 23/02 - Pumps characterised by combination with, or adaptation to, specific driving engines or motors
• F01C 13/04 - Adaptations of machines or engines for special useCombinations of engines with devices driven thereby for driving pumps or compressors

Abstract

An air conditioner system, comprising: a compressor (10); a first pipeline (20) communicating with the compressor (10); a second pipeline (30) also communicating with the compressor (10), the first pipeline (20) and the second pipeline (30) being independently disposed; an evaporative condenser (40) disposed on the first pipeline (20) and the second pipeline (30), the refrigerants in the first pipeline (20) and in the second pipeline (30) being separately capable of performing heat exchange with the evaporative condenser (40); a first liquid separator (51) disposed on the first pipeline (20), the outlet of the first liquid separator (51) communicating with the compressor (10); and a second liquid separator (52) disposed on the second pipeline (30), the outlet of the second liquid separator (52) communicating with the compressor (10), and the first liquid separator (51) and the second liquid separator (52) being disposed adjacent to each other. In addition, also disclosed is an air conditioner having the air conditioner system.

IPC Classes  ?

• F24F 1/00 - Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
• F25B 1/10 - Compression machines, plants or systems with non-reversible cycle with multi-stage compression
• F25B 41/06 - Flow restrictors, e.g. capillary tubes; Disposition thereof

Abstract

The present invention provides an asynchronous starting synchronous reluctance motor rotor structure, a motor and a compressor. The asynchronous starting synchronous reluctance motor rotor comprises a rotor core. The rotor core comprises a central through hole (11) through which a rotating shaft passes and a plurality of first magnetic barrier parts (21). Some or all of the first magnetic barrier parts (21) are special-shaped slots. Each of the special-shaped slots comprises a first straight slot section (211), an arc slot section (212), and a second straight slot section (213) connected in sequence, and the first straight slot section (211) and the second straight slot section (213) extend to the q axis direction. The closer to the central through hole (11), the longer the first straight slot section (211) and the second straight slot section (213) extend in the q axis direction, and the arc slot section (212) protrudes toward one side away from the central through hole (11). The present invention effectively solves the problem in the prior art that the working efficiency of the asynchronous starting synchronous reluctance motor rotor is low.

IPC Classes  ?

• H02K 1/22 - Rotating parts of the magnetic circuit

Abstract

An asynchronous start and synchronous reluctance motor rotor, a motor, and a compressor. The asynchronous start and synchronous reluctance motor rotor comprises a rotor core (10), the rotor core (10) comprising: a second magnetic barrier structure, comprising two communicating magnetic barrier grooves (31) arranged along the d axis at an intervals, the two communicating magnetic barrier grooves (31) being respectively located on the peripheral side of the d axis of the rotor core (10), and the arc of the communicating magnetic barrier grooves being α, wherein α satisfies 20°≤α≤60°. The manner in which the arc α of the communicating magnetic barrier grooves (31) is configured to satisfy a certain angle may increase the magnetic flux along the q axis of the rotor such that the magnetic flux along the q axis is smooth and flows, while the magnetic flux along the d axis is blocked, thereby increasing the difference in magnetic flux between the d axis and the q axis of the rotor, improving the output power and operating efficiency of the asynchronous start and synchronous reluctance motor rotor, while also ensuring that the starting capabilities of the motor are good.

IPC Classes  ?

• H02K 1/22 - Rotating parts of the magnetic circuit

Abstract

An asynchronous starting synchronous reluctance motor rotor, a motor and a compressor. The asynchronous starting synchronous reluctance motor rotor comprises a rotor core (10) and a stator (40) outside said rotor. The rotor core (10) comprises a first magnetic barrier structure and a second magnetic barrier structure. The first magnetic barrier structure comprises a plurality of supplement grooves (214); the second magnetic barrier structure comprises communication magnetic barrier grooves (31) and a plurality of independent magnetic barrier grooves (32), there being two communication magnetic barrier grooves (31), the two communication magnetic barrier grooves (31) being spaced apart along a d-axis of the rotor core (10), the two communication magnetic barrier grooves (31) being respectively located at the outer peripheral sides of the d-axis of the rotor core, and the length of the communication magnetic barrier grooves (32) is larger than that of at least one of the supplement grooves (214) and the independent magnetic barrier grooves (32). The structure of said rotor effectively solves the problem of low operation efficiency of an asynchronous starting synchronous reluctance motor rotor of a motor in the prior art.

IPC Classes  ?

• H02K 1/22 - Rotating parts of the magnetic circuit

Abstract

An asynchronous-starting synchronous magnetic reluctance motor rotor, a motor and a compressor. The asynchronous-starting synchronous magnetic reluctance motor rotor comprises a rotor iron core (10); the rotor iron core (10) comprises a plurality of complementary grooves (214) and a plurality of first magnetic barriers (21); the plurality of complementary grooves (214) are respectively positioned between the ends of the first magnetic barriers (21) and the outer edge of the rotor iron core (10); and the ratio C1/C2 between the distance C1 from a center (d axis) of the first magnetic barrier (21) to a q axis and the distance C2 from the complementary grooves (214) at both ends of the first magnetic barrier (21) to the q axis is between 1-5. The present invention solves the problem in existing technology of low working efficiency of an asynchronous-starting synchronous magnetic reluctance motor rotor. Meanwhile, an appropriate supplementary groove proportion is set to ensure the starting capability of the motor.

IPC Classes  ?

• H02K 1/22 - Rotating parts of the magnetic circuit

Abstract

Provided is a motor rotor and a motor, the motor rotor includes a rotor body (10), a magnet (20) is embedded inside the rotor body (10), the outer periphery of the rotor body (10) is surrounded by a plurality of circular arc protrusions (12) and transition connecting sections (11), both ends of each circular arc protrusion (12) are provided with the transition connecting sections (11), two adjacent circular arc protrusions (12) are transitionally connected by two transition connecting sections (11); the radius of the circular arc protrusions (12) is R, an eccentricity offset is provided between the center of the circular arc protrusion (12) and the center of the rotor body (10), wherein, offset/R is in the range from 0.05 to 0.16; a connecting line between an end of the connecting section (11) away from the circular arc protrusion (12) and the rotor body (10) is a first straight line, the line perpendicular to the first line is a second straight line, the angle between the transition connecting section (11) and the second straight line is Φ, wherein, the Φ is in the range from 2° to 5°. Through the action of the motor rotor, the efficiency of the magnet embedded type motor is improved, the cogging torque and the torque ripple are reduced, so as to further improve the performance of the motor.

IPC Classes  ?

• H02K 1/27 - Rotor cores with permanent magnets

Abstract

Provided are an asynchronous starting and synchronous reluctance electric motor rotor, an electric motor and a compressor. The asynchronous starting and synchronous reluctance electric motor rotor comprises a rotor core. The rotor core comprises: a first magnetic barrier structure comprising multiple groups of first magnetic barrier parts provided at intervals along the axis d of the rotor core; and a second magnetic barrier structure comprising two communicating magnetic barrier grooves provided at intervals along the axis d, the two communicating magnetic barrier grooves respectively being located at two sides of the first magnetic barrier structure, the communicating magnetic barrier grooves being arc-shaped grooves extending circumferentially along the rotor core, and groove walls of two ends of the arc-shaped grooves being provided parallel to the axis q. The present invention effectively solves the problem in the prior art of low operating efficiency of an asynchronous starting and synchronous reluctance electric motor rotor of an electric motor.

IPC Classes  ?

• H02K 1/22 - Rotating parts of the magnetic circuit

Abstract

Disclosed are an asynchronous starting and synchronous reluctance electric motor rotor, an electric motor and a compressor. The asynchronous starting and synchronous reluctance electric motor rotor comprises a rotor iron core (10), and a stator (40) outside a rotor. The rotor core (10) comprises: a first magnetic barrier structure comprising multiple supplement grooves (214), the multiple supplement grooves (214) respectively being located at two sides of the axis q; and a second magnetic barrier structure comprising multiple independent magnetic barrier grooves (32), the extension direction of the independent magnetic barrier grooves (32) and the supplement grooves (214) being provided parallel to the axis q, and the independent magnetic barrier grooves (32) being located between the supplement grooves (214). This structure effectively solves the problem in the prior art of low operating efficiency of an asynchronous starting and synchronous reluctance electric motor rotor of an electric motor, while improving the starting performance of an electric motor.

IPC Classes  ?

• H02K 1/22 - Rotating parts of the magnetic circuit

Abstract

Disclosed are an asynchronous starting and synchronous reluctance electric motor rotor, an electric motor and a compressor. The asynchronous starting and synchronous reluctance electric motor rotor comprises a rotor core (10), wherein the rotor core (10) comprises multiple supplement grooves (214), the multiple supplement grooves (214) are respectively located on the periphery of the rotor core (10), the multiple supplement grooves (214) extend by a length A2 in the direction of the axis q, the extension length of the supplement grooves (214) near the axis d is greater than the extension length of the supplement grooves (214) near the axis q, and the extension length A2 of the supplement grooves (214) gradually increases in the direction away from the axis q. The present invention solves the problem in the prior art that the operating efficiency of an asynchronous starting and synchronous reluctance electric motor rotor of an electric motor is low, while improving the starting performance of an electric motor.

IPC Classes  ?

• H02K 1/22 - Rotating parts of the magnetic circuit

Abstract

A compressor and an air conditioner are provided herein. The compressor comprises a main shaft (1), a first cylinder (2), and a second cylinder (3). The main shaft (1) sequentially passes through the first cylinder (2) and the second cylinder (3) and can rotate therein, so as to compress refrigerants entering the first cylinder (2) and the second cylinder (3). The second cylinder (3) has an inner cavity (31) capable of receiving the main shaft (1), a changeable capacity control cavity (32) connecting to the inner cavity (31) is provided on the side wall of the inner cavity (31), and a sliding vane (33) is provided inside the changeable capacity control cavity (32). The changeable capacity control cavity (32) can be selectively connected to an air inlet and an air outlet of the compressor, so as to change the pressure in the changeable capacity control cavity (32), and the pressure in the changeable capacity control cavity (32) drives the sliding vane (33) to move to abut or separate from the main shaft (1). The changeable capacity compressor can reduce minimum output thereof, providing precise temperature control, reducing power consumption, and realizing energy conservation.

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 18/356 - 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 compressor and an air conditioner having same. The compressor comprises: a first-stage air cylinder (10), comprising a first-stage compression chamber (11); and a second-stage air cylinder (20), comprising a second-stage compression chamber (21) and an air storage chamber (22). A refrigerant flowing out of the first-stage compression chamber (11) enters into the second-stage compression chamber (21) by means of the air storage chamber (22), and the flow area of the air storage chamber (22) is larger than the area of an air outlet of the first-stage compression chamber (11). The compressor effectively resolves the problems that the power consumption of the compressor is increased and the performance is reduced due to large resistance loss in the air cylinder 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 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 compressor and an air conditioner having the same, wherein the compressor comprises: a first compression part (10), a second compression part (20), an intermediate cavity (30) and an intermediate channel (40). Refrigerant discharged from the first compression part (10) enters the intermediate cavity (30); the intermediate channel (40) communicates with the intermediate cavity (30) and an inner cavity of the second compression part (20); a bottom port of the intermediate channel (40) is located at the bottom of the intermediate cavity (30); and air supplement refrigerant and/or the refrigerant discharged from the first compression part (10) are used to convey accumulated oil located in the intermediate cavity (30) to the inner cavity of the second compression part (20). When only the refrigerant discharged from the first compression part (10) is used to convey the accumulated oil located in the intermediate cavity (30) to the inner cavity of the second compression part (20), at least one part of the intermediate channel (40) is located outside of a casing assembly (90) of the compressor, thus improving the efficiency with which the accumulated oil in the intermediate cavity (30) is discharged from the intermediate cavity (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 23/00 - 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

A pump body assembly, a compressor and an air conditioner, the pump body assembly comprising: an upper flange (10), the upper flange (10) comprising a disc part (11) and a neck part (12) extending upward from the disc part (11); the outer peripheral surface of the disc part (11) is connected to a housing of the compressor; the height a1 of the disc part (11) and the distance between the upper end surface of the neck part (12) and the lower end surface of the disc part (11) b1 satisfy 0.3≤a1/b1≤0.4; the height a1 of the disc part (11) and the diameter d1 of the disc part (11) satisfy 0.1≤a1/d1≤0.2. With the present invention, the angle at which the upper flange (10) may be tilted becomes smaller, which increases the coaxiality of the motor and reduces the noise 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 29/00 - Component parts, details, or accessories, of pumps or pumping installations specially adapted for elastic fluids, not provided for in groups

Abstract

A phase deviation compensation method and device. The method comprises: obtaining a first sinusoidal analog signal and a first cosinusoidal analog signal (S101); converting the first sinusoidal analog signal into a corresponding first sinusoidal digital signal, and converting the first cosinusoidal analog signal into a corresponding first cosinusoidal digital signal (S102); controlling, according to pulse edge changes of the first sinusoidal digital signal and the first cosinusoidal digital signal, a sampler to sample the first sinusoidal analog signal and the first cosinusoidal analog signal to obtain a first sinusoidal sampled signal and a first cosinusoidal sampled signal (S103); determining a phase deviation (S104); and performing phase compensation on the first sinusoidal sampled signal and the first cosinusoidal sampled signal on the basis of the phase deviation (S105). The phase deviation compensation method and device solves the problem in the related art of deterioration of high frequency detection results and inability to ensure the accuracy of high frequency phase compensation caused by a phase deviation detection and compensation method for signals subdivided by an absolute encoder being limited by the sampling rate of AD.

IPC Classes  ?

• G01D 18/00 - Testing or calibrating apparatus or arrangements provided for in groups

Abstract

Disclosed are a multi-stage compressor and an air-conditioner with the same. The multi-stage compressor comprises: a first-stage cylinder (10), comprising a first-stage compression chamber (11) and a first sliding vane (12) arranged in the first-stage compression chamber (11); a second-stage cylinder (20), comprising a second-stage compression chamber (21) and a second sliding vane (22) arranged in the second-stage compression chamber (21), wherein a refrigerant flowed out of the first-stage compression chamber (11) enters the second-stage compression chamber (21); and a linkage structure (30) arranged between the first sliding vane (12) and the second sliding vane (22), so as to enable the second sliding vane (22) to move along with the movement of the first sliding vane (12), and to keep in contact with a roller (24) in the second-stage compression chamber (21). According to the invention, the problem that in a high-pressure stage cylinder, a sliding vane is separated from a roller and collides the roller, thus affecting normal operation of a compressor and generating noise, and in turn affecting long-term reliability of the compressor, is effectively solved.

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 18/356 - 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

Provided are a variable-capacity control structure, a compressor and a variable-capacity control method therefor. The structure comprises: a variable-capacity component and a sliding vane constraint unit (8), wherein the variable-capacity component is arranged outside a housing (1) of a compressor to which a variable-capacity control structure belongs, and is used for acting according to a set order; and the sliding vane constraint unit (8) is arranged inside a pump body of the compressor and is used for enabling, under the control of the variable-capacity component acting according to a set order, a variable-capacity cylinder component in the compressor to be in a working state or an idling state. The solution of the prevent invention achieves the beneficial effects of reducing jitter, and being less prone to shut down and pipeline fracture.

IPC Classes  ?

• 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 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 and an air conditioner having same. The compressor comprises a motor and a pump assembly. The motor drives, by means of a crankshaft (17), the pump assembly to work by means of a crankshaft (17); an accommodating space is formed in the motor; at least a part of the pump assembly is positioned in the accommodating space, so that the pump assembly and the motor are at least partially overlapped in an axial direction. According to the compressor, the pump assembly and the motor are at least partially overlapped in the axial direction, so that the total axial size of the motor and the pump assembly is less than the sum of the respective axial sizes of the motor and the pump assembly in an assembly state, and therefore the axial size of the compressor is obviously reduced.

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

A compressor and an air conditioner having same. The compressor comprises: a spindle (10), the spindle (10) being provided with a protruding portion (11), and sliding sheets (12) being mounted on the protruding portion (11); an air cylinder (20), the protruding portion (11) and the sliding sheets (12) being inserted into an inner cavity of the air cylinder (20); and air inlet and outlet device, sleeved on the spindle (10) and located above or below the air cylinder (20). The air inlet and outlet device comprises a disk body; an air intake port (31) in communication with the inner cavity is provided on the end surface of the disk body facing the air cylinder (20); the air intake port (31) comprises an outer side edge (311), an inner side edge (312), and a connection side edge (313) located between the outer side edge (311) and the inner side edge (312); the outer side edge (311) coincides with the inner wall of the air cylinder (20) or is located at the inner side of the inner wall of the air cylinder (20); the inner side edge (312) coincides with the outer wall of the protruding portion (11) or is located at the outer side of the protruding portion (11); when the primitive volume of the air cylinder (20) is maximal, the connection side edge (313) coincides with the side wall, facing the spindle rotating direction, of a sliding sheet (12) closest to the air intake port (31), or is located at the inner side of said side wall of the sliding sheet (12). The compressor can effectively resolve the problem in the prior art of serious tilting of a spindle.

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
• 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 and a compressor having same, the pump body assembly comprising: two structural members; a cylinder (20) provided between the two structural members; a rotary shaft (30) passing through the two structural members and the cylinder (20), a rotor portion (31) of the rotary shaft (30) having a plurality of blade slots (311); a plurality of blades (40) slidably provided in the plurality of blade slots (311) in a corresponding manner; and at least one friction reducing structure (120), the friction reducing structure (120) being provided between at least one of the structural members and the cylinder (20), so as to avoid contact and friction between the cylinder (20), the rotor portion (31), and between the plurality of blades (40) and the structural members.

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
• 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 comprises: a rotary shaft (10) having a rotor portion (11), wherein the rotor portion (11) is provided with multiple sliding vane slots (111); a cylinder (20), wherein the rotary shaft (10) passes therethrough, and the cylinder (20) has an inner cavity (21); multiple sliding vanes (30) capable of sliding within the sliding vane slots (111), wherein a head portion of the sliding vane (30) is in contact with a cavity wall of the inner cavity (21); multiple sliding vane springs (40), are provided in the sliding vane slots (111) and located at a tail portion of the sliding vanes (30); and multiple guide structures (50) provided in the sliding vane slots (111) and extending outwards in a moving direction of the sliding vanes (30), wherein the sliding vane spring (40) sleeves onto the guide structure (50). The invention further discloses fluid machinery having the pump body assembly described above and a heat exchange apparatus. The above structure prevents the sliding vane (30) of the pump body assembly from separating from the cylinder (20), thereby prolonging service life of the sliding vane (30), the cylinder (20), and the rotary shaft (10).

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

Abstract

Provided are a control valve structure and a compressor having same. The control valve structure comprises a valve body, said valve body having an accommodating chamber; a valve core (30) is movably arranged inside the accommodating chamber; a piston (40) is movably arranged inside the accommodating chamber; the valve core (30) drives the piston (40) in reciprocating motion in the axial direction of the accommodating chamber; a steering assembly (50); the valve core (30) is movably connected to the piston (40) by means of the steering assembly (50). The steering assembly (50) is arranged between the valve core (30) and the piston (40), such that the valve core (30) may move relative to the piston (40). Thus when the valve core (30) laterally drives or pushes the piston (40) to move, if the frictional force between either the valve core (30) or the piston (40) and the chamber wall of the accommodating chamber is excessively large, then a certain amount of longitudinal displacement of either the valve core (30) or the piston (40) is allowed so as to prevent the frictional force between either the valve core (30) or the piston (40) and the chamber wall from continuing to increase; thus the situation of the valve core (30) and piston (40) becoming stuck is prevented. The use of the described control valve structure effectively improves the reliability and usefulness of the control valve.

IPC Classes  ?

• F16K 11/07 - Multiple-way valves, e.g. mixing valvesPipe fittings incorporating such valvesArrangement of valves and flow lines specially adapted for mixing fluid with all movable sealing faces moving as one unit comprising only sliding valves with linearly sliding closure members with cylindrical slides
• F16K 3/24 - Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution with cylindrical valve members
• F16K 3/314 - Forms or constructions of slidesAttachment of the slide to the spindle
• 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
• F04B 27/14 - Control

Abstract

Disclosed is a pump assembly, a piece of fluid machinery comprising the pump assembly, and a heat exchange apparatus comprising the fluid machinery, the pump assembly comprising: a cylinder (10) having an inner cavity (11) and a sliding vane slot (12) in communication with the inner cavity (11); a piston (20), the piston (20) being rotatably arranged inside the inner cavity (11); a sliding vane (30) slidably arranged in the sliding vane slot (12) , wherein the head of the sliding vane (30) being in contact with an outer peripheral face of the piston (20); and a sliding vane spring (40) arranged at the tail of the sliding vane (30), the sliding vane spring (40) having a compressed state when compressed by the sliding vane (30) and a free state when separated from the sliding vane (30). The acting force between the head of the sliding vane (30) and the piston (20) is reduced, thus reducing the energy consumption during the operation of the pump assembly.

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 mechanical arm, comprising: a rotating arm (10); a holder (30) connected to the rotating arm (10); a ball screw spline (20) separately penetrating through the rotating arm (10) and the holder (30) and rotatably provided relative to the holder (30); a base (40) provided on the rotating arm (10) and located above the rotating arm (10); and a drive part (50) provided on the base (40) and configured to drive the ball screw spline (20) to move. The holder is provided on the rotating arm, and the ball screw spline is connected to the holder, so that the amplitude of the ball screw spline in the transmission process is effectively reduced, and the precision of the mechanical arm is improved. Also involved is an SCARA horizontal multi-joint robot with the mechanical arm.

IPC Classes  ?

• B25J 9/04 - Programme-controlled manipulators characterised by movement of the arms, e.g. cartesian co-ordinate type by rotating at least one arm, excluding the head movement itself, e.g. cylindrical co-ordinate type or polar co-ordinate type
• B25J 9/12 - Programme-controlled manipulators characterised by positioning means for manipulator elements electric

Abstract

Disclosed are a robot connecting arm and a robot having same. The robot connecting arm comprises: an arm (10), the arm (10) having a first connecting end (11) and a second connecting end (12), a weight-reducing groove (13) being provided on a surface of the arm (10); a reinforcing rib (20) provided in the weight-reducing groove (13), with two ends of the reinforcing rib (20) being respectively correspondingly connected to two groove walls of two ends of the weight-reducing groove (13) in the lengthwise direction thereof. The structure can effectively improve the rigidity of the connecting arm of a robot while reducing weight, thereby reducing deformation.

IPC Classes  ?

• B25J 18/00 - Arms
• B25J 9/04 - Programme-controlled manipulators characterised by movement of the arms, e.g. cartesian co-ordinate type by rotating at least one arm, excluding the head movement itself, e.g. cylindrical co-ordinate type or polar co-ordinate type

Abstract

A robot connecting arm, comprising: an arm body (10). The arm body (10) is provided with a first connecting end (11) connected to a base (2) and a second connecting end (12) opposite to the first connecting end (11); the size of the first connecting end (11) is greater than that of the second connecting end (12), so as to enable the distance between the gravity center of the arm body (10) and the first connecting end (11) to be less than the distance between the gravity center and the second connecting end (12). The technical solution efficiently resolves the problems in the prior art of large rotational inertia and easy deformation of the connecting arm.

IPC Classes  ?

• B25J 18/00 - Arms
• B25J 9/04 - Programme-controlled manipulators characterised by movement of the arms, e.g. cartesian co-ordinate type by rotating at least one arm, excluding the head movement itself, e.g. cylindrical co-ordinate type or polar co-ordinate type

Abstract

Provided are a compressor, air conditioner, and method for assembling a compressor; said compressor comprises a housing (10), a first cylinder component, and a second cylinder component. The first cylinder component comprises a first cylinder (20); the first cylinder component has a first air discharge passageway; the first end of the first air discharge passageway is in communication with the first cylinder (20); the second end of the first air discharge passageway is in communication with an accommodating chamber; the second cylinder component comprises a second cylinder (30); the second cylinder (30) is arranged adjacent to the first cylinder (20); the second cylinder component has a second air discharge passageway; the second air discharge passageway is arranged independent of the first air discharge passageway; the first end of the second air discharge passageway is connected to the second cylinder (30); the second end of the second air discharge passageway is in communication with an accommodating chamber; when the first cylinder (20) is in an operating state, the second cylinder (30) is in an operating state or the second cylinder is in an idling state. The performance and reliability of the compressor are improved.

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 18/356 - 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 sealing element, a compressor and an air conditioner. The sealing element comprises a sealing body (100), and a sealing surface is formed on the sealing body (100). A cellular sealing structure (110) is provided on the sealing surface, and comprises a plurality of honeycomb lattices (111) provided side by side. Some of the plurality of honeycomb lattices (111) are communicated with each other by means of an air passage (112). The sealing element can effectively solve the technical problem of strong vibration of a rotor caused by high rotation speed of the compressor and small sealing clearance.

IPC Classes  ?

• F04D 29/16 - Sealings between pressure and suction sides

Abstract

Disclosed are an air cylinder, a pump body assembly, a compressor, and a temperature adjusting apparatus. The air cylinder comprises a cylinder body (10), and a first cavity (11) and second cavity (12) formed in an axial direction of the cylinder body (10), wherein the first cavity (11) is in communication with the second cavity (12), and the inner diameter of the first cavity (11) is greater than that of the second cavity (12); and when the cylinder body (10) operates, the first cavity (11) forms a first working cavity, and the second cavity (12) forms a second working cavity. With such an arrangement, multiple working cavities are formed inside one cylinder body, the installation process of the pump body assembly can be effectively simplified, a pump body structure with the air cylinder can be installed more simply, conveniently and easily, and the installation 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 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

Disclosed is a crank shaft, comprising a central rotation shaft (1), a first eccentric part (2), a second eccentric part (3), a disc partition plate (18) and a ring partition plate (4), wherein the disc partition plate (18) is located between the first eccentric part (2) and the second eccentric part (3), and is integrally formed with the central rotation shaft (1), and the ring partition plate (4) is sleeved outside the disc partition plate (18). The crank shaft can prevent the occurrence of leakage between a partition plate and a roller while increasing the offset of the crank shaft, improving the operating performance of a compressor. Further disclosed are a pump body component and a compressor which are provided with the crank shaft.

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 18/356 - 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

Disclosed is fluid machinery, comprising an upper flange (50), a lower flange (60), a cylinder (20), a rotary shaft (10), a limiting plate (26), a piston bush (33) and a piston (32). The cylinder (20) is interposed between the upper flange (50) and the lower flange (60). The limiting plate (26) has an accommodating hole which is used for accommodating the rotary shaft (10) and is arranged coaxially with the cylinder (20). The limiting plate (26) is interposed between the lower flange (60) and the cylinder (20). The piston bush (33) is pivotally arranged within the cylinder (20). The piston bush (33) has a connecting convex ring (331) extending toward a side of the lower flange (60). The connecting convex ring (331) is embedded in the accommodating hole. The piston bush (33) is in contact with one of the limiting plate (26) and the lower flange (60) in an anti-pushing manner in the axial direction of the rotary shaft (10) and is in clearance fit with the other. The piston (32) is slidably arranged in the piston bush (33) to form a volume-variable cavity. The rotary shaft (10) passes through the upper flange (50), the cylinder (20), the piston bush (33), the piston (32), the limiting plate (26) and the lower flange (60) so as to drive the piston (32) to slide in the piston bush (33). Further disclosed is a heat-exchange apparatus having the fluid machinery. The fluid machinery solves the problems of low operational stability of fluid machinery and low operating efficiency of compressors in the prior art.

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 twin-cylinder compressor, comprising an upper cylinder (10) and a lower cylinder (20) and a partition (30) connected between the upper cylinder (10) and to the lower cylinder (20). An upper flange (40) is disposed above the upper cylinder (10). A lower flange (50) is disposed below the lower cylinder (20). A first upper cylinder discharge port (11) is provided on a top end of the upper cylinder (10) facing the upper flange (40). An upper flange discharge port (41) is provided on the upper flange (40) at a position corresponding to the first upper cylinder discharge port (11). A first lower cylinder discharge port (21) is provided on a lower end of the lower cylinder (20) facing the lower flange (50). A lower flange discharge port (51) is provided on the lower flange (50) at a position corresponding to the first lower cylinder discharge port (21). A first opening is provided at the edge of the first upper cylinder discharge port (11) and at the edge of the first lower cylinder discharge port (21). The diameter of the upper flange discharge port (41) and the diameter of the lower flange discharge port (51) correspond to the maximum diameter of the first upper cylinder discharge port (11) and the maximum diameter of first lower cylinder discharge port (21), respectively. Also disclosed is an air conditioner comprising the twin-cylinder compressor. The twin-cylinder compressor effectively solves the problem of low performance of twin-cylinder compressors of the prior art.

IPC Classes  ?

• F04C 29/12 - Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet

Abstract

Disclosed are a pump body for a piston compressor with a rotary cylinder and a compressor comprising same. The pump body for a piston compressor with a rotary cylinder comprises a cylinder jacket (10) and a cylinder (20) rotatably arranged in the cylinder jacket (10), wherein an outer circumferential surface of the cylinder (20) is in clearance fit with an inner circumferential surface of the cylinder jacket (10). Since a clearance is provided between the outer circumferential surface of the cylinder and the inner circumferential surface of the cylinder jacket, contact between the outer circumferential surface of the cylinder and the inner circumferential surface of the cylinder jacket is prevented, which helps to solve the problem of severe friction between the cylinder and the cylinder jacket existing in the prior art.

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 23/02 - Pumps characterised by combination with, or adaptation to, specific driving engines or motors
• 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

Abstract

A method of detecting an axial displacement, comprising: obtaining an axial displacement (d1, d2) detected by each axial displacement sensor (25-1, 25-2) in a plurality of axial displacement sensors (25-1, 25-2), wherein the detection direction of each axial displacement sensor (25-1, 25-2) is parallel to a rotor axis of a rotary member (21); the plurality of axial displacement sensors (25-1, 25-2) are all located on the same side of the detection surface and are uniformly arranged along a circumferential direction of the rotary member (21); and determining a target axial displacement (d ref) of the rotating member (21) on the basis of the obtained plurality of axial displacements (d1, d2).

IPC Classes  ?

• G01B 21/02 - Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
• G01B 21/16 - Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring distance or clearance between spaced objects

Abstract

An energy feedback method and system for magnetic levitation bearing, the system comprises: a magnetic levitation bearing (11), an electrical motor (M), a power supply (15) for supplying power to the magnetic levitation bearing (11) and the electrical motor (M), and an energy feedback device (17) electrically connected to the electrical motor (M) and the magnetic levitation bearing (11) respectively for supplying the electric energy generated by the electrical motor (M) in an idling state to the magnetic suspension bearing (11) in the case where the power supply (15) is abnormally powered off, thus solving the technical problem of higher costs caused by the use of a standby power supply to maintain the stable levitation of a rotating shaft in the bearing control system in the case of abnormal power-off of the power supply.

IPC Classes  ?

• H02J 9/00 - Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting

Abstract

A double-stage capacity-variable compressor and an air conditioning system having the same. The double-stage capacity-variable compressor comprises a first cylinder group (10) and a second cylinder group (20). The first cylinder group (10) comprises: a first cylinder (11) having a first sliding slot (12) for a sliding vane and a first via (12a) that is in communication with the first sliding slot (12) for a sliding vane and used for receiving a high-pressure gas, a first sliding vane (14) that abuts against the circumferential surface of a centrifugally disposed first roller (30) and has a positioning slot (15), and a locking mechanism (16). The upper end of the locking mechanism (16) is in communication with the first via (12a), the lower end selectably receives a high-pressure gas or a low-pressure gas, so that the locking mechanism (16) has a locked position or an unlocked position. The second cylinder group (20) comprises a second sliding vane (23) that always abuts against the circumferential surface of a centrifugally disposed second roller (40). The double-stage capacity-variable compressor and the air conditioning system having the same can achieve stable switching between double-stage and single-stage capacity-variable modes.

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 23/00 - 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

A compressor comprising: an upper flange (50); a lower flange (60); at least two cylinders (20 and 200), where the at least two cylinders (20 and 200) are sandwiched between the upper flange (50) and the lower flange (60), and any adjacent two cylinders (20 and 200) are interconnected to make the compressor a multistage compressor; a rotating shaft component, where the rotating shaft runs sequentially through the upper flange (50), the cylinders (20 and 200), and the lower flange (60), the rotating shaft component comprises rotating sub-shafts (10) provided on a one-to-one correspondence to each of the cylinders (20 and 200) among the at least two cylinders (20 and 200), and the axes of the rotating sub-shafts (10) are arranged eccentric to the axes of the cylinders (20 and 200) corresponding to the sub-shafts (10) and at a fixed eccentric distance; a piston component, where the piston component is provided with variable volume cavities (31) on a one-to-one correspondence to each of the cylinders (20 and 200), the piston component is pivotally arranged within the cylinders (20 and 200), and at least one of the rotating sub-shafts (10) is actuatedly connected to the piston component to change the volume of the variable volume cavities (31). Also, a heat exchanging apparatus comprising the compressor and an operating method for the compressor. The compressor effectively mitigates vibration, ensures a regular pattern for changes in the volume of the variable volume cavities, and reduces clearance volume, thus increasing the operational stability of the compressor.

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

Abstract

Disclosed is a fluid machinery, which comprises: an upper flange (50); a lower flange (60); a cylinder (20) which is clamped between the upper flange (50) and the lower flange (60); a piston sleeve (33) which is pivotably provided in the cylinder (20); a piston sleeve shaft (34) which passes through the upper flange (50) and is fixedly connected to the piston sleeve (33); a piston (32) which is slidably provided in the piston sleeve (33) to form a variable volume cavity (31), the variable volume cavity (31) being located in a sliding direction of the piston (32); and a rotary shaft (10), an axis (15) of the rotary shaft (10) and an axis of the cylinder (20) being eccentrically arranged with the eccentric distance being fixed. The rotary shaft (10) successively passes through the lower flange (60) and the cylinder (20) to cooperate with the piston (32) in a slidable manner, under the driving action of the piston sleeve shaft (34), the piston sleeve (33) rotates synchronously with the piston sleeve shaft (34) to drive the piston (32) to slide in the piston sleeve (33) so as to change the volume of the variable volume cavity (31), and at the same time, the rotary shaft (10) rotates under the driving of the piston (32). The fluid machinery lowers the requirement for the structural strength of the rotary shaft and is able to effectively reduce the leakage between an end face of the piston sleeve and an end face of the upper flange. Further disclosed are a heat exchange device, and a method for operating a fluid machinery.

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
• 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

Abstract

Disclosed are a fluid machinery, a heat exchange device, and a method for operating a fluid machinery. The fluid machinery comprises: an upper flange (50); a lower flange (60); a cylinder (20), the cylinder (20) being clamped between the upper flange (50) and the lower flange (60); a rotary shaft (10), an axis of the rotary shaft (10) and an axis of the cylinder (20) being eccentrically arranged with eccentric distance being fixed, and the rotary shaft (10) passing through the upper flange (50) and the cylinder (20) in sequence; and a piston assembly (30), the piston assembly (30) being provided with a variable volume cavity (31). The piston assembly (30) is pivotally arranged in the cylinder (20), and the rotary shaft (10) is connected in a driving manner to the piston assembly (30) to change the volume of the variable volume cavity (31). Since the eccentric distance between the rotary shaft (10) and the cylinder (20) is fixed, the rotary shaft (10) and the cylinder (20) rotate around the respective axis during movement, and the position of the centre of mass is unchanged so as to enable the piston assembly (30) to rotate stably and continuously when the piston assembly moves in the cylinder (20), thereby effectively relieving the vibration of the fluid machinery, guaranteeing that the volume of the variable volume cavity (31) is changed regularly, reducing a clearance volume so as to improve the stability of the operation of the fluid machinery, and accordingly improving the working reliability of the heat exchange device.

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
• F01C 1/344 - 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 inner member

Abstract

A compressor, comprising: an upper flange (50); a lower flange (60); at least two cylinders (20), wherein the at least two cylinders (20) are sandwiched between the upper flange (50) and the lower flange (60), and any two adjacent cylinders (20) operate independently; a rotation shaft assembly, wherein the rotation shaft assembly passes through the upper flange (50), the cylinders (20) and the lower flange (60) sequentially and comprises sub-rotation shafts (10) disposed correspondingly to each of the at least two cylinders (20), the sub-rotation shaft (10) and the cylinder (20) to which the sub-rotation shaft corresponds are eccentrically disposed and the eccentric distance is fixed; piston units (30), wherein the piston units (30) have variable volume chambers (31) corresponding to each of the cylinders (20), the piston units (30) are pivotably disposed in the cylinders (20) and at least one of the sub-rotation shafts (10) is drivingly connected to the piston units (30) to change the volume of the variable volume chamber (31). Also disclosed are a heat exchanger comprising the compressor and an operating method of the compressor. The compressor has little vibration, and thus ensures a regular volume variation of the variable volume chamber, reduces the clearance volume and therefore improves the operational stability and operational reliability of the compressor.

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

Abstract

The invention discloses a compressor. The compressor includes a first primary cylinder, a second primary cylinder and a secondary cylinder, which are stacked, a separator is provided between two adjacent cylinders. The first primary cylinder is provided with a first air entry, the second primary cylinder is provided with a second air entry, and the secondary cylinder is provided with an air outlet. The first primary cylinder and the second primary cylinder are connected in serial to the secondary cylinder after being connected in parallel. A refrigerant entering the first air entry and the second air entry is discharged from the air outlet after primary or/and secondary compression. The two separators are divided into a first separator and a second separator. Any one or two of the first separator, the second separator and a lower flange may be provided with a slide piece control device.

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 18/356 - 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

b); a q-axis magnetic flux path is formed between two neighboring magnetic poles; the permanent magnets are disposed in the permanent magnet grooves; two neighboring magnetic poles of the rotor are respectively a first magnetic pole and a second magnetic pole having opposite polarities; an outer endpoint of a permanent magnet in the first magnetic pole is a first outer endpoint, said outer endpoint is farther from the q-axis; an outer endpoint of the permanent magnet in the second magnetic pole is a second outer endpoint, said outer endpoint is farther from the q-axis; an included angle A of the first outer endpoint and the second outer endpoint with respect to the center of the rotor is less than an electrical angle of 80 degrees, the number of stator slots being N, the number of pairs of rotor poles being P, the number of phases of windings being m, and the number of stator slots per pole per phase (N/2P/m) being an integer. As compared with motors having existing structures, the permanent magnet motor dramatically reduces the torque ripple thereof.

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

Abstract

Disclosed are a magnetic bearing and a centrifugal compressor. The magnetic bearing comprises a revolving shaft (110) and an electromagnetic component, wherein the electromagnetic component is arranged around an outer periphery of the revolving shaft (110), and a gap is formed between the electromagnetic component and the revolving shaft (110) for adjusting a position of the revolving shaft (110). The electromagnetic component comprises an iron core (120) with a winding slot, and coils (150). The coils (150) are arranged in the winding slot. The magnetic bearing (100) also comprises a protection mechanism (140), which is configured to prevent the revolving shaft (110) from colliding with the electromagnetic component, thereby achieving the purpose of axially protecting the magnetic bearing (100). The centrifugal compressor comprises the magnetic bearing (100), thereby obtaining axial protection and prolonging service life.

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
• F16C 17/04 - Sliding-contact bearings for exclusively rotary movement for axial load only
• F16C 17/08 - Sliding-contact bearings for exclusively rotary movement for axial load only for supporting the end face of a shaft or other member, e.g. footstep bearings
• F16C 39/02 - Relieving load on bearings using mechanical means

Abstract

A leaf spring (100) comprises at least two spring arms (120, 130) and an inner fixing hole (110). The at least two spring arms (120, 130) are evenly distributed around a center of the inner fixing hole (110); each spring arm is of the same structure, and an outer fixing hole (122) is disposed at an outermost end of each spring arm. Further provided are a leaf spring group and a compressor. The leaf spring group comprises multiple leaf springs, and the compressor comprises the leaf spring group. The provided leaf spring has a structure of multiple concentric circular arms or a structure of concentric vortex arms, and the leaf spring has smaller equivalent mass, so that the rigidity and inherent frequency requirements can be met without the need of increasing the mass of the components, thereby reducing the product mass and saving the cost.

IPC Classes  ?

• F16F 1/02 - Springs made of steel or other material having low internal frictionWound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
• F16F 1/18 - Leaf springs
• F16F 3/00 - Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic
• F16F 3/02 - Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic with springs made of steel or of other material having low internal friction

Abstract

A shaft control method and device for a magnetic suspension system. The shaft control method for the magnetic suspension system includes: acquiring a displacement signal obtained by detecting displacement of a shaft in the magnetic suspension system (Step 101); separating whirling displacement from the displacement signal (Step 102); and controlling whirling of the shaft according to the whirling displacement (Step 103). By the disclosure, the effect of suppressing the whirling of the shaft during high-speed rotation of the magnetic suspension system is achieved.

IPC Classes  ?

• F16C 32/04 - Bearings not otherwise provided for using magnetic or electric supporting means
• G05B 6/02 - Internal feedback arrangements for obtaining particular characteristics, e.g. proportional, integral or differential electric

Abstract

Provided is an intermediate cavity structure, wherein a first assembling hole (910) and an intermediate cavity (920) are provided in the intermediate cavity structure (9), a baffle (930) is provided inside the intermediate cavity (920), the baffle (930) divides the intermediate cavity (920) into a first-stage intermediate cavity and a second-stage intermediate cavity (924), an air supplementing through-hole (932) is provided in the baffle (930), and an air supplementing assembly (934) is provided at the air supplementing through-hole (932). Provided is a two-stage enthalpy-increasing rotor-type compressor having the intermediate cavity structure (9). The intermediate cavity structure achieves automatic switching of a larger effective acting volume under an enthalpy-increasing opened working condition and automatic switching of a smaller effective acting volume under an enthalpy-increasing closed working condition, so that the intermediate cavity can be matched with the optimum effective acting volume under different working conditions, whereby the suction saturability of the high-pressure air cylinder is effectively enhanced, and then the APF energy efficiency value of the two-stage enthalpy-increasing rotor-type compressor is improved.

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

Disclosed is a control method for a power amplifier, a system and an air conditioner therefor. The system comprises: an upper bridge arm driving control power supply including a bootstrap capacitor C and a first insulated gate bipolar transistor; a lower bridge arm driving control power supply including a second insulated gate bipolar transistor; a bearing controller electrically connected with the first insulated gate bipolar transistor and the second insulated gate bipolar transistor respectively, which is used for controlling the duty cycle value of pulse width modulation received by the second insulated gate bipolar transistor to be greater than a second predetermined value when the current value of a bearing coil L is detected to be equal to a first predetermined value, so that the bootstrap capacitor is charged, and where the second predetermined value is greater than or equal to zero. The technical problem that the power amplifier failure is caused by failing to insure the bootstrap capacitor to be charged in time in prior art is achieved.

IPC Classes  ?

• H03F 1/52 - Circuit arrangements for protecting such amplifiers

Abstract

A pump body structure of a rolling rotor type compressor comprises a crankshaft (10); a first air cylinder (20) sleeved on the crankshaft (10), the first air cylinder (20) comprising a first cylinder body (21), a first roller (22) arranged in the first cylinder body (21), and a first sliding vane (23) arranged between the first cylinder body (21) and the first roller (22); a second air cylinder (30) sleeved on the crankshaft (10); a third air cylinder (40) sleeved on the crankshaft (10), wherein the first air cylinder (20), the second air cylinder (30) and the third air cylinder (40) are distributed along the axial direction of the crankshaft (10), and a baffle (50) is arranged between every two adjacent air cylinders; and a sliding vane control device (60) arranged on a fixing structure of the pump body structure and comprising a sliding vane limiting portion (61), the sliding vane limiting portion (61) being provided with a first working position used for limiting the first sliding vane (23) so as to prevent the first sliding vane (23) from sliding and a second working position used for being separated from the first sliding vane (23). Also provided is a compressor having the pump body structure. The compressor is well adapted to seasonal temperature changes, and the comprehensive performance of the rolling rotor type compressor is improved.

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

Abstract

A compressor comprising a first primary cylinder (1), a second primary cylinder (2), and a secondary cylinder (3), all being stacked one on the other, and two neighboring cylinders being provided with a separator therebetween; the first primary cylinder (1) is provided with a first air intake, the second primary cylinder (2) is provided with a second air intake, and the secondary cylinder (3) is provided with an air outlet; the first primary cylinder (1) and the second primary cylinder (2) are connected in parallel, and the first primary cylinder (1) and the second primary cylinder (2) are connected in serial with the secondary cylinder (3) after the parallel connection. The refrigerant enters through the first air intake and the second air intake and leaves through the air outlet after primary and/or secondary compression; the two separators are the first separator and the second separator; any one or two of the first separator, the second separator, and a lower flange is provided with a sliding piece control device. An air conditioner having the compressor. The compressor can operate in multiple modes and select different modes for different operation conditions so as to increase heating capability and enhance rated point and intermediate point performance.

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 18/356 - 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 motor, comprising a stator (1) and a rotor (4); the rotor comprises a rotor iron core (5) and permanent magnets (7a, 7b); in the radial direction of the rotor, each magnetic pole of the rotor iron core is provided with multiple layers of arc-shaped permanent magnet grooves (6a, 6b); a q-axis magnetic circuit is formed between two neighboring layers of permanent magnet grooves; the permanent magnets are disposed in the permanent magnet grooves; two neighboring magnetic poles of the rotor are respectively a first magnetic pole and a second magnetic pole having opposite polarity; the outer end of a permanent magnet in the first magnetic pole away from the q-axis is a first outer end; the outer end of the permanent magnet in the second magnetic pole away from the-q axis is a second outer end; the included angle A of the first outer end and the second outer end relative to the center of the rotor is less than an electrical angle of 80 degrees, the number of the stator grooves being N, the number of pairs of the rotor poles being P, the number of phases of the windings being m, and the number of grooves per pole per phase (N/2P/m) being an integer. Compared with existing structures, the permanent magnet motor dramatically reduces the torque pulsation of a motor.

IPC Classes  ?

• H02K 1/27 - Rotor cores with permanent magnets

Abstract

A leaf spring (100) comprises at least two spring arms (120, 130) and an inner fixing hole (110). The at least two spring arms (120, 130) are evenly distributed around the inner fixing hole (110); each spring arm is of the same structure, and an outer fixing hole (122) is disposed at the outermost end of each spring arm. Further provided are a leaf spring group and a compressor. The leaf spring group comprises multiple leaf springs, and the compressor comprises the leaf spring group. The provided leaf spring uses a structure of multiple concentric circular arms and a structure of concentric vortex arms, and the two structures have small equivalent mass, so that the rigidity and inherent frequency requirements can be met without the need of increasing the mass of the components, thereby reducing the product mass and saving the cost.

IPC Classes  ?

• F16F 1/32 - Cup springsDished disc springs
• F16F 3/00 - Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic

Abstract

A shaft control method and device for a magnetic suspension system. The shaft control method for a magnetic suspension system comprises: acquiring a displacement signal which is obtained by detecting the displacement of a shaft in a magnetic suspension system (S101); separating a vortex displacement from the displacement signal (S102); and according to the vortex displacement, controlling the vortex motion of the shaft (S103). By means of the present invention, the effect of suppressing the vortex motion of the shaft during the high-speed rotation of the magnetic suspension system is achieved.

IPC Classes  ?

• H02N 15/00 - Holding or levitation devices using magnetic attraction or repulsion, not otherwise provided for

Abstract

Disclosed are a magnetic suspension bearing and a centrifugal compressor. The magnetic suspension bearing comprises a rotary shaft (110) and an electromagnetic device, wherein the electromagnetic device is distributed on an outer periphery of the rotary shaft (110), and there is a gap between the electromagnetic device and the rotary shaft (110) for adjusting the position of the rotary shaft (110). The electromagnetic device comprises an iron core (120) with a winding slot, and a coil (150). The coil (150) is arranged in the winding slot. The magnetic suspension bearing (100) also comprises a protection mechanism (140) which is used for preventing the rotary shaft (110) from colliding with the electromagnetic device, thereby achieving the purpose of axially protecting the magnetic suspension bearing (100). The centrifugal compressor comprises the magnetic suspension bearing (100), thereby obtaining axial protection, so that the service life is prolonged.

IPC Classes  ?

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