[PROBLEM] To provide an electric compressor capable of easily and appropriately sealing a gap between a partition wall and a bus bar unit without requiring high dimensional accuracy in the arrangement and shape of the bus bar unit. [SOLUTION] A motor 5 and an inverter 31 are electrically connected by a three-phase terminal 44 penetrating a partition wall 16. This electric compressor is provided with: a bus bar unit 32 disposed on a motor chamber 18 side and having a three-phase terminal 33 and a resin part 34; and a through-hole 17 formed in the partition wall 16. The three-phase terminal 33 projects from the resin part 34 and passes through the through-hole 17, and the tip of the three-phase terminal 33 faces an inverter chamber 19. A recessed storage part 38 is formed in the resin part 34 at a portion where the three-phase terminal 33 projects, and a gap between the partition wall 16 at the through-hole 17 and the resin part 34 is sealed with a sealing material 42 injected into the storage part 38.
F04B 39/00 - Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups
F04C 29/00 - Component parts, details, or accessories, of pumps or pumping installations specially adapted for elastic fluids, not provided for in groups
H02K 5/22 - Auxiliary parts of casings not covered by groups , e.g. shaped to form connection boxes or terminal boxes
H02K 11/33 - Drive circuits, e.g. power electronics
[Problem] To provide a motor in which a bus bar unit can be accurately positioned and can be effectively prevented from coming off in the axial direction. [Solution] This motor comprises: a stator 21 provided with a core 22 and an insulator 27 around which a magnet wire 23 is wound; and a bus bar unit 26 formed by molding a bus bar with a resin 27, said bus bar electrically connecting the magnet wire 23 led out from each slot 29 of the stator 21 and three-phase terminals 33. The core 22 has a key groove 31 formed on the outer periphery. The bus bar unit 26 is formed with: a claw part 47 which is fitted to the key groove 31 to position with respect to the core 22 in the circumferential direction; a push-in stop part 51 which defines a push-in amount of the claw part 47 into the key groove 31; and a coming-off prevention part which is fitted to the insulator 27 to prevent coming-off from the core 22.
[Problem] To provide a heat-medium-heating device with which a plurality of power switching elements for controlling energization of electric heaters can be maintained in an appropriate temperature zone. [Solution] A heat-medium-heating device 1 comprises heat medium flow passages 9, 11 provided within a housing 2, electric heaters 18, 19 for heating a heat medium flowing through the heat medium flow passages, and a plurality of power switching elements 22-24 for controlling energization of the electric heaters. Each power switching element is disposed in a heat exchange relationship with the heat medium flowing through the heat medium flow paths. Among the power switching elements, the power switching element 24 having the greatest heat generation amount by energization is arranged farther upstream with respect to the flow of the heat medium than the other power switching elements 22, 23.
F24H 1/10 - Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
B60H 1/03 - Heating, cooling or ventilating devices the heat being derived from the propulsion plant and from a source other than the propulsion plant
B60H 1/22 - Heating, cooling or ventilating devices the heat being derived otherwise than from the propulsion plant
[Problem] To provide a heat management system enabling independent adjustment of a flow rate of a heating medium flowing through a high-temperature side heating medium circuit and a flow rate of the heating medium flowing through an in-vehicle heat generator temperature control circuit. [Solution] A high-temperature side heating medium circuit 20 includes: a circulation pump P20 that pushes out a heating medium; a heating medium heating device 22 that can heat the heating medium; a path through which the heating medium flows in the order of the circulation pump P20, a high-temperature side heat exchanger 12, the heating medium heating device 22, and a heater core; a proportional control three-way valve V2 that causes the heating medium that has passed through the heating medium heating device 22 to branch toward a battery temperature adjustment circuit 40 on a path downstream of the heating medium heating device 22; and a junction C20 that joins the heating medium that has flowed through the battery temperature adjustment circuit 40 and is then flowing to the high-temperature side heating medium circuit 20 to a path between the circulation pump P20 and the high-temperature side heat exchanger 12.
[Problem] To make occupants more comfortable by causing a hot gas heating mode to continue stably and suppressing any variation in blowout temperature during transition from hot-gas air warming to heat absorption air warming. [Solution] A vehicle air conditioner comprising a refrigerant circuit, an air conditioning unit, and a control device for controlling the refrigerant circuit and the air conditioning unit, wherein it is possible to execute a heat-absorption air warming mode in which refrigerant radiated due to air-warming in the cabin is caused to absorb heat from a heat absorption target such as outside air in an external heat exchanger, and a hot gas air-warming mode in which some of the refrigerant compressed by a compressor is returned to the compressor via a bypass route and the remainder is heated in the cabin by heat radiation from the refrigerant. When, during a transition from the hot gas air-warming mode to the heat absorption air-warming mode, the difference between the current air-warming capacity in the hot gas air-warming mode and the air-warming capacity in the heat absorption air-warming mode estimated on the basis of the temperature of the heat absorption target is equal to or greater than a predetermined value, an air damper is driven to lower the current air-warming capacity in the hot gas air-warming mode.
[Problem] To improve comfort of an occupant by achieving a desired blowout temperature while ensuring a heat radiation amount required with an increase in a heating load and stably continuing a hot gas heating mode. [Solution] This vehicle air conditioning device includes: a refrigerant circuit; an air conditioning unit; and a control device for controlling the refrigerant circuit and the air conditioning unit. The vehicle air conditioning device can execute a hot gas heating mode in which a part of a refrigerant compressed by a compressor is bypassed and returned to the compressor and the remainder heats the inside of the cabin by heat radiation of the refrigerant. When it is determined that the heating load has increased during execution of the hot gas heating mode, control is performed so as to expand an increase range of the target rotation speed of the compressor.
[Problem] To provide a vehicle air conditioner in which it is possible to avoid a drop in intake density of a refrigerant in a compressor and extend a service life of the compressor while improving quick heating performance. [Solution] A bypass pathway, by which a refrigerant having passed through a compressor 11 bypasses a heater core 12 to flow into an intake side 11b of the compressor 11, comprises: a first pathway in which the refrigerant having passed through the compressor 11 flows toward the upstream side of an accumulator 15; and a second pathway in which the refrigerant having passed through the compressor 11 flows to the downstream side of the accumulator 15.
[Problem] To provide a vehicular air conditioning device that has good rapid-heating performance. [Solution] A vehicular air conditioning device 1 is provided with a refrigerant circuit 10 that includes: a compressor 11; a heater core 12 that is configured to heat air supplied to a vehicle interior; a decompression device 13; and a low-temperature-side heat exchanger 14 that is configured to exchange heat between a heat transfer medium that exchanges heat with an on-board heat generating apparatus and a refrigerant. A control device 200 lets a portion of the refrigerant that has passed through the compressor 11 flow to the heater core 12 and, in a hot gas heating mode in which the remaining refrigerant is made to flow into a bypass path, if the temperature of the heat transfer medium flowing through the low-temperature-side heat exchanger 14 does not meet a prescribed condition, restricts inflow of the refrigerant into the low-temperature-side heat exchanger 14.
[Problem] To provide a vehicle air conditioning device capable of executing a hot gas heating operation mode (FF control and FB control) without impairing the reliability of components on a low pressure side and the comfort of occupants, even when the hot gas heating operation mode is started in an extremely low temperature environment. [Solution] In this vehicle air conditioning device, a pressure reduction unit has a first pressure reduction unit provided on the downstream side of an indoor heat exchange unit, and a second pressure reduction unit provided in a hot gas bypass. A control device can execute a hot gas heating operation mode in which a part of a refrigerant compressed by a compressor is made to flow to the indoor heat exchange unit and the remainder is made to flow to the hot gas bypass. If it is determined that a refrigerant pressure on a suction side of the compressor is a negative pressure when starting the hot gas heating operation mode, the control device executes a pressure adjustment mode for increasing the refrigerant pressure on the suction side of the compressor by controlling opening degrees of the first pressure reduction unit and the second pressure reduction unit to predetermined opening degrees or more.
B60H 1/22 - Heating, cooling or ventilating devices the heat being derived otherwise than from the propulsion plant
F25B 1/00 - Compression machines, plants or systems with non-reversible cycle
10.
CONTROL BOARD FOR ON-VEHICLE ELECTRIC COMPRESSOR, ON-VEHICLE ELECTRIC COMPRESSOR PROVIDED WITH SAME, AND METHOD FOR MANUFACTURING CONTROL BOARD FOR ON-VEHICLE ELECTRIC COMPRESSOR
[Problem] To provide a control board for an on-vehicle electric compressor, which can suppress or prevent an increase in electromagnetic noise when a capacitor element is not connected between power supply wiring and ground wiring. [Solution] This control board for an on-vehicle electric compressor comprises: a separation pattern (43) that has a power supply pad (46), a grounding pad (47), and a GND pad (48), and is separated from power supply wiring (27), GND wiring (28), and ground wiring (37); a power supply-side pad (51) provided to the power supply wiring (27); a ground-side pad (52) provided to the ground wiring (37); and a GND-side pad (53) provided to the GND wiring (28). The power supply pad (46) can be connected to the power supply-side pad (51) via solder (61), the GND pad (48) can be connected to the GND-side pad (53) via solder (61), and the grounding pad (47) can be connected to the ground-side pad (52) via a capacitor element (38A).
H02M 7/48 - Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
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
[Problem] To provide a heat exchanger capable of preventing water retention between a header tank and a bracket, and corrosion of metal caused by the water retention, even when moisture such as condensed water adheres to the heat exchanger. [Solution] A heat exchanger 1 has a cylindrical header tank 3a and a tube 2, and is provided with a bracket 4a for fixing the header tank 3a to an external member. The bracket 4a comprises a plate material 400a, which has a joining part 41a extending along a part of an outer peripheral surface 3Sa of the header tank and joined to the header tank 3a, and an external fastening part 42a separated from the outer peripheral surface 3Sa and used for connection with the external member. The joining part 41a has a one-side joining region 411a formed on one side in the longitudinal direction of the header tank 3a, and an other-side joining region 412a formed on the other side, as the regions separated from each other. A discharge part 45a for discharging liquid adhering to the outer peripheral surface 3Sa is provided in an adjacent region 413a between the one-side joining region 411a and the other-side joining region 412a.
F28F 17/00 - Removing ice or water from heat-exchange apparatus
F01P 3/18 - Arrangement or mounting of liquid-to-air heat-exchangers
F28D 1/053 - Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with the heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
F28F 9/00 - CasingsHeader boxesAuxiliary supports for elementsAuxiliary members within casings
[Problem] To minimize the incidence of a discharge valve sticking to a valve retainer in a compressor that compresses a refrigerant. [Solution] A swash-plate-type compressor 1 includes: a suction chamber 51 into which a refrigerant is suctioned; a compression mechanism that compresses a refrigerant resident in the suction chamber 51; a discharge chamber 53 into which the refrigerant compressed by the compression mechanism is discharged; a reed-valve-type discharge valve 61 disposed on the outlet side of a discharge hole 7B via which the compression mechanism and the discharge chamber 53 communicate; and a valve retainer 63 with which the discharge valve 61 comes into contact when the discharge valve 61 is opened, so as to limit the opening degree thereof. A non-contact part 63C with which the discharge valve 61 does not come into contact is formed on at least a part of an edge part of the contact surface of the valve retainer 63 with which contact is made by the discharge valve 61.
[Problem] To provide an electric compressor control board capable of suppressing deterioration of current detection accuracy due to the thermoelectromotive force of a shunt resistor, and allowing the shunt resistor to perform accurate current detection. [Solution] An electric compressor control board (27) is equipped with switching elements (28) constituting an inverter circuit (29), and shunt resistors (3U to 3W) for detecting a phase current. Of the two terminals of each shunt resistor, one terminal is connected to the switching elements by current wiring patterns (46 to 48), and the other terminal is connected to a ground wiring pattern (1). The current wiring patterns and the ground wiring pattern are formed in different layers and overlap in the board thickness direction, so that heat can be exchanged between each other via an insulating resin (53).
H02M 7/48 - Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
14.
POWER SUPPLY INPUT CIRCUIT AND INVERTER-INTEGRATED VEHICULAR ELECTRIC COMPRESSOR EQUIPPED WITH SAME
[Problem] To provide a power supply input circuit capable of suppressing fluctuation of an inrush current due to an influence of ambient temperature and shortening a rise time of a voltage that is supplied to a load. [Solution] The present invention comprises a current detection resistor (9) that detects a current by using a voltage generated at both ends thereof by an inrush current, and a current limiting switching element (Q3) which has a collector connected to the gate of a power switching element (Q2). The current limiting switching element (Q3) has a base of which the voltage changes in accordance with the voltage generated at both ends of the current detection resistor (9), adjusts the voltage of the gate of the power switching element (Q2) to cause a constant current operation to be conducted, and has a negative characteristic thermistor (17) connected between the base and the emitter of the current limiting switching element (Q3).
H02J 1/00 - Circuit arrangements for dc mains or dc distribution networks
H02M 3/00 - Conversion of DC power input into DC power output
H02M 7/48 - Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
H03K 17/16 - Modifications for eliminating interference voltages or currents
H03K 17/687 - Electronic switching or gating, i.e. not by contact-making and -breaking characterised by the use of specified components by the use, as active elements, of semiconductor devices the devices being field-effect transistors
The present invention improves heat radiation performance of a noise filter circuit part and improves sticking workability of a heat radiation sheet to the noise filter circuit part in an inverter-integrated electric compressor. An electric compressor 1 includes: an inverter 6 including a noise filter circuit part 30 in which a plurality of electrolytic capacitors 51 are mounted in an upright state; a housing 5; an inverter housing part 7 for housing the inverter 6; and a cover member 8 for closing an opening part 75 thereof. The noise filter circuit part 30 includes a first case member 37 covering the electrolytic capacitor 51. One surface of a first case member 37 viewed from a mounting direction of the electrolytic capacitor 51 with respect to a circuit board 31 is formed in a polygonal shape connecting a contour of the electrolytic capacitor 51 by a straight line. A first heat radiation sheet 18 following the shape of one surface of the first case member 37 is arranged between the first case member 37 and the cover member 8.
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
[Problem] When attaching a circuit board of an inverter, to make it hard for a tip end of a connection terminal to bend even if hitting the circuit board. [Solution] This electric compressor 100 comprises: an electric motor 110; a rotary shaft 120; a compression mechanism 130; an inverter 140; a housing 150 in which are formed a first accommodation chamber 150A for accommodating the electric motor 110, the rotary shaft 120, and the compression mechanism 130 and a second accommodation chamber 150B for accommodating the inverter 140; a hermetic terminal 170 which is provided in a barrier wall part 152 for partitioning the first accommodation chamber 150A and the second accommodation chamber 150B; and a connection terminal 180 which connects the hermetic terminal 170 and the inverter 140. In addition, a terminal receiving member 190, on which are formed a plurality of insertion holes into which terminal parts of the hermetic terminal 170 can be inserted and a terminal receiving surface which receives the connection terminal 180, is disposed between the hermetic terminal 170 and the connection terminal 180.
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
17.
ACTIVE FILTER DEVICE AND ELECTRIC COMPRESSOR COMPRISING SAME
Provided is an active filter device capable of effectively reducing common mode noise and differential mode noise and optimizing filter characteristics. The active filter device includes an inverting amplifier circuit 37 that inverts and amplifies a common mode voltage and a differential amplifier circuit 64 that differentially amplifies a differential mode voltage, and an output voltage of the inverting amplifier circuit 37 is applied as a common mode compensation voltage to Y capacitors 21, 22, an output of the differential amplifier circuit 64 obtained by amplifying a voltage of a positive-side power supply line 11 is applied as a differential mode compensation voltage to a negative-side X capacitor 42, and an output of the differential amplifier circuit 64 obtained by amplifying a voltage of a negative-side power supply line 12 is applied as a differential mode compensation voltage to a positive-side X capacitor 41.
[Problem] To provide a vehicular air conditioner capable of starting a compressor in a normal state without solidifying lubricating oil inside the compressor even in an extremely low outside air temperature environment. [Solution] A vehicular air conditioner according to the present invention comprises: a refrigerant circuit including a compressor, an indoor heat exchange unit, and an outdoor heat exchange unit; an air conditioning unit in which the indoor heat exchange unit is disposed; and a control device that controls the refrigerant circuit and the air conditioning unit. The vehicular air conditioner has a lubricating oil temperature estimation part for estimating the temperature of lubricating oil inside the compressor when the compressor stops. When the lubricating oil temperature estimating part determines that the temperature of the lubricating oil is equal to or lower than a specified value, a lubricating oil heating mode for heating the lubricating oil inside the compressor is executed.
[Problem] To achieve rapid warm-up by reducing the time it takes for the pressure of a refrigerant on the high-pressure side of a refrigerant circuit to reach a target pressure. [Solution] This vehicular air conditioner includes: a refrigerant circuit including a compressor, an indoor heat exchange unit, an outdoor heat exchange unit, and a hot gas bypass through which at least a portion of a refrigerant compressed by the compressor is decompressed and returns to the compressor by bypassing the indoor heat exchange unit and the outdoor heat exchange unit; an air conditioning unit in which the indoor heat exchange unit is disposed, and which has therein a blower for blowing air and an air damper for adjusting what proportion of air blown by the blower is blown to the indoor heat exchange unit; and a control device for controlling the refrigerant circuit and the air conditioning unit. The control device initiates a hot gas heating mode in which a portion of the refrigerant compressed by the compressor is made to flow to the indoor heat exchange unit and the rest is made to flow to the hot gas bypass, and controls the air damper so that at least a portion of the air bypasses the indoor heat exchange unit when the blower is started.
[Problem] To execute control of a refrigerant circuit (control of the rotational speed of a compressor) capable of making energy consumption of the compressor more efficient when continuously operating in a hot gas heating operation mode. [Solution] A vehicle air conditioner according to the present invention comprises: a refrigerant circuit that decompresses a refrigerant discharged from a compressor and returns the refrigerant to the compressor; a vehicle interior air conditioner that controls the temperature of air blown into the vehicle interior by an interior heat exchange unit of the refrigerant circuit; and a control device that controls the refrigerant circuit and the vehicle interior air conditioner on the basis of input information. The refrigerant circuit is provided with a refrigerant flow path that is capable of executing a hot gas heating operation mode and includes a hot gas bypass, which decompresses part of the refrigerant compressed by the compressor and causes the refrigerant to flow to the suction side of the compressor without passing through the interior heat exchange unit. In the hot gas heating operation mode in which part of the refrigerant compressed by the compressor is caused to flow to the interior heat exchange unit and the remainder is caused to flow to the hot gas bypass, the control device performs control to variably set the target pressure of the refrigerant circuit within a range in which the heating demand can be maintained, in consideration of the necessary capacity required by the set heating demand and vehicle demand.
[Problem] To stably and effectively continue hot gas heating operation and to improve the durability of a compressor. [Solution] Provided is an air conditioning device for vehicle, which is provided with: a refrigerant circuit that includes a compressor, an indoor heat exchange unit, an external heat exchange unit, and a hot gas bypass that decompresses at least a portion of a refrigerant compressed by the compressor without passing through the indoor heat exchange unit and the external heat exchange unit, and returns the refrigerant to the compressor; and a control device that can execute a hot gas heating mode in which the refrigerant circuit is controlled, a portion of the refrigerant compressed by the compressor flows to the indoor heat exchange unit, and the rest of the refrigerant flows to the hot gas bypass. The control device calculates a first target rotation speed based on an intake refrigerant pressure and a second target rotation speed based on an intake refrigerant temperature, respectively, to the compressor when the hot gas heating mode is executed, and controls the compressor with the smaller one of the first target rotation speed or the second target rotation speed as a target rotation speed, when the intake refrigerant pressure exceeds a first threshold pressure or when the intake refrigerant temperature exceeds a first threshold temperature.
[Problem] To provide: a connection member that can inhibit a contraction flow from a pipe toward a heat exchanger when connecting the heat exchanger and the pipe, and can be attached to an existing cap of the heat exchanger in a versatile manner regardless of the state of a brazing material surface in the cap; and a heat exchanger including the connection member. [Solution] A connection member 80 connects a heat exchanger 1 and respective pipe ends PE of an inlet pipe 2 and an outlet pipe 3, and has an inflow-side fixing part 83A, an outflow-side fixing part 83B, and a body 81 integrally supporting the fixing parts. The inflow-side fixing part 83A is configured so as to be capable of covering the outer circumferential surface of the pipe end PE of the inlet pipe 2 and a connection part 67A on the inflow side of a cap 60 blocking an end portion of a header tank 11. The outflow-side fixing part 83B is configured so as to be capable of covering the outer circumferential surface of the pipe end PE of the outlet pipe 3 and a connection part 67B on the outflow side of the cap 60.
SWITCHING TRANSFORMER, SWITCHING POWER SUPPLY DEVICE COMPRISING SAME, IN-VEHICLE ELECTRIC COMPRESSOR COMPRISING SAME, AND METHOD FOR MANUFACTURING SWITCHING TRANSFORMER
[Problem] To provide a switching transformer that makes it possible to reduce only parasitic capacitance and achieve noise reduction, while maintaining magnetic coupling between windings of the switching transformer. [Solution] A switching transformer 15 comprises: a primary winding 13 that is on the low-voltage side; a secondary winding 14 that is on the high-voltage side; a bobbin 43 that has a winding shaft part 61 around which the primary winding and the secondary winding are wound and which is at the center and a flange part 62; and a core 46 that has a middle leg part 67 which is inserted in a through hole of the winding shaft part 61. The low-voltage side and the high-voltage side are insulated. An air gap layer G is formed between the winding shaft part 61 and the middle leg part 67.
H01F 27/36 - Electric or magnetic shields or screens
H02M 3/28 - Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC
[Problem] To suppress generation of resonance in an inverter case during operation of an electric compressor. [Solution] An electric compressor 1 comprises an electric motor 4, a compression mechanism 5 driven by the electric motor 4, an inverter 6 that drives the electric motor 4, a motor housing 20 that houses the electric motor 4, and an inverter case 7 that is fixed in contact with the motor housing 20 and that houses the inverter 6. The motor housing 20 has a cylindrical body part 24 and a first protrusion 41 provided on the outer peripheral surface of the body part 24. The inverter case 7 has an end wall 30, and an outer surface 30a of the end wall 30 includes an abutting portion 30a1 abutting on one end surface (front end surface 24a) of the body part 24, and an exposed portion 30a2 exposed to the outside. The exposed portion 30a2 of the outer surface 30a of the end wall 30 is provided with a second protrusion 42. The first protrusion 41 is directly or indirectly fixed to the second protrusion 42.
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
H02M 7/48 - Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
[Problem] To provide an electric compressor that improves cooling performance for switching elements of an inverter as compared to the prior art. [Solution] An electric compressor 1A is configured such that a through hole 54 is formed in an end wall 52 of an inverter case 5A that houses an inverter 13, and an outer surface of a front end wall 32 of a housing 3 that houses an electric motor 9 or the like and has an intake port 36 has an exposed part 35 that is exposed inside the inverter case 5A through the through hole 54. The inverter 13 includes: a plurality of switching elements 131 that are attached to the exposed part 35 via a heat dissipation sheet 21; and an electronic circuit board 132 that is attached to a board attachment part 55 of the inverter case 5A and has the plurality of switching elements 131 connected thereto.
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
26.
ELECTROLESS NI-P PLATING FILM FOR SLIDING MEMBER AND MANUFACTURING METHOD THEREFOR
The invention according to the present application addresses the problem of providing: an electroless Ni—P plating film for sliding members which provides good lubricity under a poor lubrication environment and improves the wear resistance of a sliding member and an electroless Ni—P plating film disposed on a surface of the sliding member and the seizure resistance between sliding members while maintaining the dimensional stability and strength of the sliding member; and a method for producing the same. In order to address this problem, the electroless Ni—P plating film according to the present application adopts an electroless Ni—P plating film for sliding members which has a minute irregularity shape of a predetermined size on the surface and has a Vickers hardness of 600 HV or more, and a method for producing the same.
C23C 18/36 - Coating with one of iron, cobalt or nickelCoating with mixtures of phosphorus or boron with one of these metals using reducing agents using hypophosphites
C23C 18/16 - Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coatingContact plating by reduction or substitution, i.e. electroless plating
[Problem] To maintain the passenger compartment of an electric vehicle at a temperature that is comfortable for occupants while ensuring a sufficient travel distance using a charged battery. [Solution] A vehicle air conditioning device comprising an air conditioning system 10 capable of performing air conditioning for each occupant, said vehicle air conditioning device being configured to comprise: a boarding detection unit 21b for detecting that a person is boarding from the outside the vehicle while the air conditioning system 10 is being operated; an expected seat temperature acquisition unit 22b for acquiring temperature information for the vicinity of an expected seat to be occupied by the person from outside the vehicle; a proposal information generation unit 24b for comparing the temperature information for the vicinity the expected seat with prescribed target temperature information, and, if the temperature difference is equal to or greater than a prescribed value, generating, as an air conditioning setting of the air conditioning system for the expected seat to be occupied by the person from outside the vehicle, prescribed proposal information for bringing the temperature difference between the temperature information for the vicinity of the expected seat and the prescribed target temperature information to the prescribed value or less; and an air conditioning control unit 25b for controlling the air conditioning system on the basis of the proposal information.
[Problem] To provide a heat exchanger that makes it possible to increase heat exchange efficiency while preventing an increase in the size of the heat exchanger. [Solution] A heat exchanger 100 comprises a heat exchange core 15 having: tubes 1 which are long in one direction; and an inlet-side tank part 23I and an outlet-side tank part 23O which are connected to the tubes 1. Each of the inlet-side tank part 23I and the outlet-side tank part 23O has a header tank 7 communicating with the outside. At least one header tank 7 is disposed between one end and the other end in the length direction L of the tubes 1.
F28D 1/053 - Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with the heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
29.
ACTIVE FILTER DEVICE AND ELECTRIC AIR COMPRESSOR PROVIDED WITH SAME
[Problem] To provide an active filter device that can solve problems with so-called π-type noise filters and yield satisfactory noise reduction effects spanning from low-frequency to high-frequency regions. [Solution] An active filter device 1 is provided with: a common-mode choke coil 28 inserted in a pair of power-supply lines 11, 12; pre-stage Y capacitors 61, 62 on the common-mode choke coil 28; an active feedback compensation-voltage output circuit 23 having a detection unit 29 that detects a common mode voltage, and an inverting amplifier circuit 37 that inverts and amplifies the common mode voltage detected in the detection unit; and post-stage Y capacitors 21, 22 between the output from the inverting amplifier circuit and the common-mode choke coils. The output voltage of the inverting amplifier circuit is applied to the post-stage Y capacitors as a compensation voltage.
H02M 7/48 - Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
[Problem] To provide a relatively small air conditioner in which a condenser is disposed below an evaporator, the air conditioner being capable of controlling power usage within the power limit of a power source and of effectively utilizing air-conditioning (cooling) capacity. [Solution] An air conditioner 100 comprises: a housing 60 that houses a control device 50 and a refrigerant circuit R that has a compressor 10, a condenser 20, an evaporator 30, and an expansion device 40. The control device 50 has an operation upper-limit value determination unit 502, a rotational speed command value determination unit 503, and a compressor rotation control unit 506. The operation upper-limit value determination unit 502 executes control to determine an operation upper-limit value Rrmax of the compressor 10 in accordance with a load on the compressor 10. In a case where the load is relatively low, the rotational speed command value determination unit 503 determines a rotational speed command value Rc in accordance with a target blowout temperature Ttgt and a current rotational speed Rnow of the compressor 10. In a case where the load is relatively high, the rotational speed command value determination unit 503 executes control to set the rotational speed command value Rc to the current rotational speed Rnow or the operation upper-limit value Rrmax. The compressor rotation control unit 506 performs drive control of the compressor 10 on the basis of the rotational speed command value Rc.
F24F 1/039 - Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing using water to enhance cooling, e.g. spraying onto condensers
F24F 11/46 - Improving electric energy efficiency or saving
F24F 11/86 - Control systems characterised by their outputsConstructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
(1) Air blowers; bearings; compressors for air conditioning apparatus; compressors for gases; compressors for refrigeration apparatus; refrigeration compressors; refrigeration condensers.
(2) Accumulators (heat); accumulators (steam); air conditioners for vehicles; air conditioning apparatus; air conditioning installations; air cooling apparatus; air driers (dryers); air purifying apparatus and machines; coils (parts of distilling, heating or cooling installations; gas condensers (other than parts of machines); evaporators; fans (parts of air-conditioning installations); heat exchangers, not parts of machines; heaters for vehicles; radiator caps; radiators (heating); refrigerating apparatus and machines; thermostatic valves (parts of heating installations); ventilation (air-conditioning) installations for vehicles; air conditioning apparatus for vehicles; ventilation (air conditioning) installation for vehicles.
[Problem] The present invention addresses the problem of realizing a hot gas heating operation in which a thermodynamic cycle does not become unstable even if disturbance occurs. [Solution] This air conditioning device for a vehicle is provided with: a refrigerant circuit including a compressor, an indoor heat exchanger, and an external heat exchanger; an air conditioning unit in which the indoor heat exchanger is disposed, and which includes a blower for blowing air, after heat exchange with the indoor heat exchanger, to flow into a vehicle cabin; and a control device for controlling the refrigerant circuit and the air conditioning unit. The refrigerant circuit has a hot gas bypass which decompresses at least a portion of the refrigerant compressed by the compressor without passing through the external heat exchanger and returns the portion of the refrigerant to the compressor. The control device is capable of performing control to execute a hot gas heating operation in which the heat of the refrigerant compressed by the compressor is radiated in the indoor heat exchanger and heats the inside of the vehicle cabin, without causing the refrigerant to absorb heat in the external heat exchanger. In the case where the air temperature after heat exchange in the indoor heat exchanger is determined to be equal to or less than a predetermined temperature during the execution of the hot gas heating operation, a restriction mode for lowering the upper limit value of the air volume by the blower is set.
[Problem] The problem of the present invention is to prevent vent temperature from dropping when a target air temperature is raised during hot gas heating operation. [Solution] According to the present invention, in an air conditioner for a vehicle, a refrigerant circuit has a hot gas bypass for decompressing at least part of a refrigerant compressed by a compressor and performing returning thereof to the compressor without passing through an external heat exchanger. A control device can perform control for executing hot gas heating operation for heating inside of a vehicle cabin by dissipating heat of the refrigerant compressed by the compressor by an in-cabin heat exchanger without heat being absorbed to the refrigerant in the external heat exchanger. When a target air temperature is changed during the hot gas heating operation, and a temperature difference between a target vent air temperature TCO of the in-cabin heat exchanger calculated on the basis of the target air temperature, and a vent air temperature Thp of the in-cabin heat exchanger, is equal to or greater than a predetermined threshold α (|TCO - Thp| ≥ α), a restriction mode for restricting a change in air volume of a blower is executed.
[Problem] To provide a heat management system that performs air conditioning and temperature control while suppressing an increase in the number of components. [Solution] In a heat management system 1: a high-temperature-side heat medium circuit 20 includes a circulation pump P20; a battery temperature control circuit 40, serving as a temperature control circuit for an on-vehicle heat generation device, includes a circulation pump P40; and a low-temperature-side heat medium circuit 30 includes a circulation pump P30. Even when switching takes place between said circuits, any of the circulation pumps can be allocated to: a circulation path that includes, in a vehicle cabin, a high-temperature-side heat exchanger 12 and a low-temperature-side heat exchanger 14, in both of which the target temperature for performing air conditioning in the vehicle cabin needs to be managed; and a circulation path that includes a motor 51 and a battery 41 for performing temperature control. As a result, since it is not necessary to provide a circulation pump for each temperature control target, air conditioning and temperature control of each on-vehicle heat generation apparatus can be performed while suppressing an increase in the number of circulation pumps.
B60H 1/22 - Heating, cooling or ventilating devices the heat being derived otherwise than from the propulsion plant
B60H 1/03 - Heating, cooling or ventilating devices the heat being derived from the propulsion plant and from a source other than the propulsion plant
B60H 1/08 - Heating, cooling or ventilating devices the heat being derived from the propulsion plant from cooling liquid of the plant from other radiator than main radiator
H01M 10/663 - Heat-exchange relationships between the cells and other systems, e.g. central heating systems or fuel cells the system being an air-conditioner or an engine
H01M 10/6556 - Solid parts with flow channel passages or pipes for heat exchange
H01M 10/6568 - Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
[Problem] To provide an inverter-integrated electric compressor capable of increasing the flexural rigidity and natural frequency of an inverter cover while suppressing any increase in the wall thickness of each vibration-proof rib. [Solution] An inverter-integrated electric compressor 1 comprises a housing 11 in which a motor 2 and a scroll compression mechanism 4 are housed, an inverter 3, an inverter-accommodating part 13, and an inverter cover 15 fixed to the housing 11 by bolts 41. The inverter cover 15 is provided with a plurality of bolt holes into which the bolts 41 are inserted, and an inner vibration-proof rib 43 and an outer vibration-proof rib 44 formed on the inner side and the outer side of the inverter cover 15 so as to linearly connect two opposing bolt holes.
F04B 39/00 - Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups
F04C 29/00 - Component parts, details, or accessories, of pumps or pumping installations specially adapted for elastic fluids, not provided for in groups
[Problem] To suppress mutual interference of a drive state of each control target and to increase comfort of a user. [Solution] Provided is an automotive air conditioning device comprising: a refrigerant circuit including a compressor, a cabin heat exchange unit, and an external heat exchange unit; and a control device that controls the refrigerant circuit, wherein the refrigerant circuit includes a hot gas bypass which depressurizes at least part of a refrigerant compressed by the compressor and returns the depressurized refrigerant to the compressor by bypassing the cabin heat exchanger unit and the external heat exchange unit and a flow rate adjustment unit that adjusts the flow rate of the refrigerant flowing through the hot gas bypass, the control device is capable of executing a hot gas heating mode which causes a part of the refrigerant compressed by the compressor to flow to the cabin heat exchange unit and causes the remainder to flow to the hot gas bypass and restricts, in the hot gas heating mode, when a high-pressure-side refrigerant pressure in the refrigerant circuit becomes lower than or equal to a predetermined threshold value, control for one or both of a blower that blows air to the cabin heat exchange unit and the flow rate adjustment unit.
[Problem] To keep a compressor from being driven when suction refrigerant pressure is high and improve the durability of the compressor. [Solution] Provided is a vehicular air-conditioning device that comprises: a refrigerant circuit that includes a compressor, an indoor heat exchange unit, and an outdoor heat exchange unit; and a control device that controls the refrigerant circuit. The refrigerant circuit has: a hot gas bypass that reduces the pressure of at least a portion of refrigerant compressed at the compressor and returns the refrigerant to the compressor without the refrigerant passing through the indoor heat exchange unit and the outdoor heat exchange unit; and a flow adjustment unit that adjusts the flow of refrigerant that flows through the hot gas bypass. The control device can execute a hot gas heating mode that makes a portion of refrigerant compressed at the compressor flow through the indoor heat exchange unit and makes the remainder flow through the hot gas bypass. In the hot gas heating mode, when it has been determined that the suction refrigerant pressure of the compressor is too high, the control device performs control such that the degree to which the flow adjustment unit is open is a preset first degree of opening that is lower than the current degree of opening.
Air blowers; bearings; compressors for air conditioning apparatus; compressors for gases; compressors for refrigeration apparatus; refrigeration compressors; refrigeration condensers. Accumulators (heat); accumulators (steam); air conditioners for vehicles; air conditioning apparatus; air conditioning installations; air cooling apparatus; air driers (dryers); air purifying apparatus and machines; coils (parts of distilling, heating or cooling installations; gas condensers (other than parts of machines); evaporators; fans (parts of air-conditioning installations); heat exchangers, not parts of machines; heaters for vehicles; radiator caps; radiators (heating); refrigerating apparatus and machines; thermostatic valves (parts of heating installations); ventilation (air-conditioning) installations for vehicles; air conditioning apparatus for vehicles; ventilation (air conditioning) installation for vehicles.
[Problem] To provide a heat management system capable of easily controlling a dehumidification amount during dehumidifying and heating operation and the temperature of air blown into a car compartment. [Solution] A low-temperature side heat medium circuit 30 includes a proportional control valve V31 arranged on a downstream side of a cooler core 31. When performing dehumidifying and heating operation in a car compartment, a high-temperature side heat medium circuit 20 circulates a heat medium between a high-temperature side heat exchanger 12 and a heater core 21. A flow path switching device 70 connects the low-temperature side heat medium circuit 30 and an outdoor heat exchange circuit 60. The proportional control valve V31 is capable of dividing the heat medium flowing through the cooler core 31 into a first flow path that causes the heat medium to flow to the downstream side of a radiator 61 and the upstream side of a low-temperature side heat exchanger 14, and a second flow path that causes the heat medium to flow to the radiator 61.
H01M 10/663 - Heat-exchange relationships between the cells and other systems, e.g. central heating systems or fuel cells the system being an air-conditioner or an engine
H01M 10/6556 - Solid parts with flow channel passages or pipes for heat exchange
H01M 10/6568 - Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
Provided is an electric compressor capable of suppressing enlargement of a projection area of an inverter storage unit even when a filter component for measures against electromagnetic noise is enlarged or the number of filter components is increased. In an electric compressor (1), a filter circuit unit (30) includes a first filter circuit board (31) on which a plurality of electrolytic capacitors (51) are mounted, and a second filter circuit board (33) on which a normal mode choke coil (53), a common mode choke coil (55), and the like are mounted. The first filter circuit board (31) and the second filter circuit board (33) are electrically connected to each other, and are stored in an inverter storage unit (7) in a state of overlapping each other with a plate-like resin member (35) interposed therebetween.
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
H02M 7/48 - Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
The present invention provides an electric compressor capable of suppressing enlargement of a projection area of an inverter housing part even when a filter component for measures against electromagnetic noise is enlarged or the number of filter components is increased. In this electric compressor (1), a filter circuit unit (30) includes: a first filter circuit board (31) on which a plurality of electrolytic capacitors (51) are mounted; a second filter circuit board (33) on which a normal mode choke coil (53), a common mode choke coil (55), and the like are mounted; and a bus bar member (35) having a bus bar (351) for electrically connecting the first filter circuit board (31) and the second filter circuit board (33), and a resin holding unit (352) for holding the bus bar (351). The first filter circuit board (31) and the second filter circuit board (33) are housed in the inverter housing part (7) in a state in which the first filter circuit board (31) and the second filter circuit board (33) are stacked with the bus bar member (35) interposed therebetween.
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
H02M 7/48 - Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
[Problem] To provide an air-conditioning device capable of improving operation efficiency by guiding drain water from an evaporator to a condenser regardless of an installation posture. [Solution] The present invention comprises: a refrigerant circuit in which a refrigerant circulates and which is composed of a compressor, a condenser 4, a decompression device, an evaporator 3, and a refrigerant flow path connecting the compressor, the condenser 4, the decompression device, and the evaporator 3; and a drain-water-receiving unit 20 that is disposed between the evaporator 3 and the condenser 4 which is below the evaporator 3, and that guides the drain water generated in the evaporator 3 toward the surface of the condenser 4 in a front-rear direction D1 that intersects the width direction D3 of the evaporator 3. The drain-water-receiving unit 20 has: a receiving surface 21 that receives the drain water; and a plurality of guide protrusions 22 that are disposed spaced apart from each other in the width direction D3, each protruding upward from the receiving surface 21, and extending in the front-rear direction D1.
F24F 1/039 - Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing using water to enhance cooling, e.g. spraying onto condensers
[Problem] To improve comfortableness of a user by suppressing variation in blowout temperature while ensuring quick warming-up in a hot gas heating operation. [Solution] Provided is an air conditioner for a vehicle including: a refrigerant circuit including a compressor, an indoor heat exchange unit, and an external heat exchange unit; and a control device that controls the refrigerant circuit. The refrigerant circuit includes: a hot gas bypass that reduces the pressure of at least a portion of a refrigerant compressed by the compressor without passing through the indoor heat exchange unit and the external heat exchange unit and returns the refrigerant to the compressor; and a flow rate adjustment unit that adjusts a flow rate of the refrigerant flowing in the hot gas bypass. In a hot gas heating mode in which a portion of the refrigerant compressed by the compressor is made to flow to the indoor heat exchange unit and the rest is made to flow to the hot gas bypass, the control device executes an FF/FB mode for controlling the number of revolutions of the compressor by FF control and FB control after the compressor is driven at a prescribed fixed number of revolutions at the time of starting the hot gas heating mode, and sets a prescribed initial value in the integration term of the FB control at the time of switching to the FF/FB mode.
[Problem] To provide a heat dissipation structure of a heating element and a heat medium heater that improve design flexibility around the heating element. [Solution] This heat dissipation structure of a heating element 40 comprises a housing 20 in which the heating element 40 mounted on a substrate 30 is disposed, and allows heat generated by the heating element 40 to be dissipated to the housing 20. The housing 20 has a pocket 21 that is open on a substrate-facing surface 20a facing the substrate 30 and is recessed away from the substrate 30. The heating element 40 is disposed in the pocket 21 with a lead protruding surface 41a of the heating element 40 facing the substrate 30.
H01L 23/34 - Arrangements for cooling, heating, ventilating or temperature compensation
H01L 23/40 - Mountings or securing means for detachable cooling or heating arrangements
H01L 23/473 - Arrangements for cooling, heating, ventilating or temperature compensation involving the transfer of heat by flowing fluids by flowing liquids
F24H 1/00 - Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
A vehicle heat management system includes a refrigerant circuit including a refrigerant-heat medium heat exchanger, and a heat medium circuit. Two or more of at least three heat exchangers are selected, and one of them functions as a condenser, and the other functions as an evaporator. The refrigerant-heat medium heat exchanger includes a first and a second refrigerant-heat medium heat exchanger. The heat medium circuit includes a switch device configured to be able to switch between a circuit state in which the heat medium having passed through the second refrigerant-heat medium heat exchanger flows to the first refrigerant-heat medium heat exchanger and a circuit state in which a flow path of the heat medium having passed through the first refrigerant-heat medium heat exchanger and a flow path of the heat medium having passed through the second refrigerant-heat medium heat exchanger form individual circuits, respectively.
The present invention relates to a heat exchanger having a two-path structure, and the objective is to maintain the capacity of the heat exchanger by reducing the water flow resistance of a heat medium in a header tank on the side of the heat exchanger on which a heat medium outflow port is not provided, and to suppress an increase in manufacturing costs by standardizing the shape of the header tanks on one end side and the other end side of a tube group. Provided is a heat exchanger having a two-pass structure in which a first header tank is provided at one end of a first tube group and a second tube group provided parallel to the first tube group, and a second header tank is provided at the other end, wherein: the first header tank and the second header tank are each provided with a header plate that is connected to the tubes, and a tank plate that is coupled to the header plate; the second header tank is internally provided with a column member that is sandwiched between the header plate and the tank plate; and the column member is provided in the second header tank such that a heat medium can flow from the first tube group to the second tube group in the second header tank.
F28D 1/053 - Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with the heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
47.
ELECTRIC COMPRESSOR MOTOR AND ELECTRIC COMPRESSOR EQUIPPED WITH SAME
[Problem] To provide an electric compressor motor in which stress to an insulator can be reduced by avoiding collision between the insulator and a core due to vibration. [Solution] This electric compressor motor comprises: the core 22 of a stator 21; an insulator 33 mounted on the outer surface of a tooth 27 of the core 22; and a winding 23 wound around the outer surface of the insulator 33. The electric compressor motor further comprises: a recess 34 formed on the outer surface of the tooth 27; and a protrusion 41 formed on the inner surface of the insulator 33. The protrusion 41 of the insulator 33 is fitted into the recess 34 of the tooth 27.
[Problem] To provide a vehicle air conditioning device for improving air conditioning efficiency. [Solution] A vehicle air conditioning device 10 is provided with: an air conditioning circuit 20; an HVAC 80 having a drain port 83 for discharging condensed water generated in an air cooling part 22; and a drain unit 90 for discharging the condensed water to the outside. The drain unit 90 has: a heat exchange path 91 having a heat exchange part 91a provided at a position for exchanging heat between an air heating part 21 and the condensed water at least during cooling operation; a discharge path 92 for discharging the condensed water to the outside without passing through the heat exchange part 91a; and a valve part 93 capable of switching a connection destination of the drain port 83 to the heat exchange path 91 or the discharge path 92.
[Problem] To provide an energy-efficient heat management system. [Solution] A heat management system 1 comprises: a refrigerant circuit 10 in which a refrigerant circulates; a high-temperature-side heat medium circuit 20 which includes a heater core 21 for heating air in a cabin and which can perform heat exchange with the refrigerant circuit 10; a low-temperature-side heat medium circuit 30 which includes a cooler core 31 for cooling air in the cabin and which can perform heat exchange with the refrigerant circuit 10; a battery temperature adjustment circuit 40 which includes a battery temperature adjustment part for adjusting the temperature of a battery 41 and which can perform heat exchange with the refrigerant circuit 10; a motor temperature adjustment circuit 50 which includes a motor temperature adjustment part for adjusting the temperature of a motor 51; an outdoor heat exchange circuit 60 which includes a radiator 61; and a flow path switching device 70, wherein the flow path switching device 70 is configured to connect the battery temperature adjustment circuit 40, the motor temperature adjustment circuit 50, and the low-temperature-side heat medium circuit 30 when a heating request has been made while a compressor 11 is in a state of being stopped, so as to guide, to the cooler core 31, a heat medium that has been warmed by heat generated in the battery 41 and by heat generated in the motor 51.
B60H 1/22 - Heating, cooling or ventilating devices the heat being derived otherwise than from the propulsion plant
B60H 1/00 - Heating, cooling or ventilating devices
B60H 1/03 - Heating, cooling or ventilating devices the heat being derived from the propulsion plant and from a source other than the propulsion plant
B60L 15/20 - Methods, circuits or devices for controlling the propulsion of electrically-propelled vehicles, e.g. their traction-motor speed, to achieve a desired performanceAdaptation of control equipment on electrically-propelled vehicles for remote actuation from a stationary place, from alternative parts of the vehicle or from alternative vehicles of the same vehicle train for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
B60L 50/60 - Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
B60L 58/26 - Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by cooling
B60L 58/27 - Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by heating
F25B 1/00 - Compression machines, plants or systems with non-reversible cycle
[Problem] To provide a heat management system of high energy efficiency. [Solution] A heat management system 1 is provided with: a refrigerant circuit 10 in which a refrigerant circulates; a high-temperature-side heating medium circuit 20 that includes a heater core 21 for heating air in a vehicle interior and is that able to exchange heat with the refrigerant circuit 10; a low-temperature-side heating medium circuit 30 that includes a cooler core 31 for cooling the air in the vehicle interior and that is able to exchange heat with the refrigerant circuit 10; a battery temperature control circuit 40 that includes a battery temperature control unit for controlling the temperature of a battery 41 and is able to exchange heat with the refrigerant circuit 10; a motor temperature control circuit 50 that includes a motor temperature control unit 50 for controlling the temperature of a motor 51; an outdoor heat exchange circuit 60 that includes a radiator 61; and a flow path switching device 70. The flow path switching device 70 is configured so as to connect the motor temperature control circuit 50 to any one of the low-temperature-side heating medium circuit 30, the battery temperature control circuit 40, and the outdoor heat exchange circuit 60 in response to a temperature control request and/or air conditioning request with respect to the battery 41.
B60L 58/26 - Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by cooling
B60H 1/22 - Heating, cooling or ventilating devices the heat being derived otherwise than from the propulsion plant
B60L 15/20 - Methods, circuits or devices for controlling the propulsion of electrically-propelled vehicles, e.g. their traction-motor speed, to achieve a desired performanceAdaptation of control equipment on electrically-propelled vehicles for remote actuation from a stationary place, from alternative parts of the vehicle or from alternative vehicles of the same vehicle train for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
B60L 50/60 - Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
B60L 58/27 - Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by heating
F25B 1/00 - Compression machines, plants or systems with non-reversible cycle
[Problem] To provide a heat management system having high energy efficiency. [Solution] A heat management system 1 comprises a refrigerant circuit 10 in which a refrigerant circulates, a high-temperature-side heat medium circuit 20 that includes a heater core 21 for heating air within a cabin and that can exchange heat with the refrigerant circuit 10, a low-temperature-side heat medium circuit 30 that includes a cooler core 31 for cooling air within the cabin and that can exchange heat with the refrigerant circuit 10, a battery temperature control circuit 40 that includes a battery temperature control unit for controlling the temperature of the battery 41 and that can exchange heat with the refrigerant circuit 10, a motor temperature control circuit 50 that includes a motor temperature control unit for controlling the temperature of a motor 51, an outdoor heat exchange circuit 60 that includes a radiator 61, and a flow-path-switching device 70. The flow-path-switching device 70 is configured to connect the motor temperature control circuit 50 to one of the low-temperature-side heat medium circuit 30, the battery temperature control circuit 40, and the outdoor heat exchange circuit 60 in accordance with at least one of a temperature control request and an air conditioning request of the battery 41.
B60L 58/26 - Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by cooling
B60H 1/22 - Heating, cooling or ventilating devices the heat being derived otherwise than from the propulsion plant
B60L 1/00 - Supplying electric power to auxiliary equipment of electrically-propelled vehicles
B60L 3/00 - Electric devices on electrically-propelled vehicles for safety purposesMonitoring operating variables, e.g. speed, deceleration or energy consumption
B60L 50/60 - Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
B60L 58/27 - Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by heating
[Problem] To provide a vehicle air conditioning device capable of limiting power consumption during air conditioning operation by reducing heat loss caused by outside air introduction and inside air discharge, while improving air blowing efficiency inside of an air conditioning case. [Solution] In the vehicle air conditioner 1, a first passage P1 for guiding outside air from an outside air inlet 22 to an evaporator 32 and a second passage P2 for guiding inside air from an inside air inlet 23 to the evaporator 32 are formed in an air conditioning case 21. In the first and second passages P1, P2, a blower fan 31 is provided, and a total heat exchanger 34 is disposed between the blower fan 31 and the evaporator 32. The outside air flowing through the first passage P1 and at least some of the inside air flowing through the second passage P2 are introduced into the total heat exchanger 34, and heat is exchanged between the outside air and the inside air. The heat-exchanged outside air is introduced into the evaporator 32 together with the remaining inside air flowing through the second passage P2, and the heat-exchanged inside air is discharged to the outside of a vehicle cabin.
[Problem] To provide an air conditioning device for a vehicle, the air conditioning device being capable of extending the life of a compressor by suppressing the number of instances of on/off operation in on/off control. [Solution] An air conditioning device 1 for a vehicle includes: a refrigerant circuit R having a compressor 2, a heat dissipation part 4 for heating air, a pressure reduction part 6, and a heat absorption part 9; a heat medium circuit 61 having a heat generator and capable of being thermally connected to at least one of the heat radiation part 4 or the heat absorption part 9; and a control device 32. The control device 32, during a heating operation or a cooling operation, switches to an air conditioning capacity consumption mode for thermally connecting a part of the refrigerant circuit R and the heat medium circuit 61 when the rotation speed of the compressor 2 is the minimum rotation speed and the air conditioning capacity of the refrigerant circuit R to the request air conditioning load becomes excessive.
[Problem] To provide an inverter-integrated electric compressor capable of suppressing or preventing electrolytic corrosion of a bearing rotatably supporting a rotary shaft to which a rotor of an electric motor is fixed. [Solution] In an inverter-integrated electric compressor 10, a first partition wall part 212 of a conductive housing 20 separates an inverter 60 from an electric motor 40, and a second partition wall part 232 of the housing 20 separates the electric motor 40 from a compression mechanism 50. A stator 41 of the electric motor 40 is fixed to the housing 20, and a conductive rotary shaft 30 to which a rotor 42 of the electric motor 40 is fixed is rotatably supported by a metal first bearing 25 held by the first partition wall part 212 and a metal second bearing 26 held by the second partition wall part 232. A conductive shaft seal member 27 having an inner peripheral part in contact with an outer peripheral surface of the rotary shaft 30 is held by the second partition wall part 232
F04B 39/00 - Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups
F04C 18/02 - 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
[Problem] To provide an inverter-integrated electric compressor capable of suppressing or preventing electrolytic corrosion of a bearing that rotatably supports a rotary shaft to which a rotor of an electric motor is fixed. [Solution] In an inverter-integrated electric compressor 10, a first partition wall part 212 of a housing 20 having conductivity separates an inverter 60 and an electric motor 40, and a second partition wall part 232 of the housing 20 separates the electric motor 40 and a compression mechanism 50. A stator 41 of the electric motor 40 is fixed to the housing 20, and a conductive rotary shaft 30 to which a rotor 42 of the electric motor 40 is fixed is rotatably supported by a metal first bearing 25 held by the first partition wall part 212 and a metal second bearing 26 held by the second partition wall part 232. An insulating layer 35 is provided between the rotary shaft 30 and the rotor 42.
F04B 39/00 - Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups
F04C 18/02 - 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
A vehicle air conditioning apparatus includes: a refrigerant circuit including a compressor; a vehicle compartment air conditioning unit including a heat exchanger configured to perform a heat exchange between the-refrigerant and air to be supplied to a vehicle compartment, and an indoor and outdoor air switching device configured to switch a percentage of indoor air or outdoor air introduced into an air flow path of the air subjected to the heat exchange in the heat exchanger; and a controller configured to control the refrigerant circuit and the indoor and outdoor air switching device. The controller is configured to be able to selectively perform operation modes having identical air conditioning purposes and having different refrigerant flow paths of the refrigerant circuit, reduces the number of rotations of the compressor, and switches the indoor and outdoor air switching device to the indoor air circulation, when switching an operation mode.
[Problem] To make it possible to realize comfortable air conditioning control even when a use environment condition has changed. [Solution] This control specification change system for a vehicle air conditioning control device comprises a vehicle air conditioning control device that controls an air conditioning device provided to a vehicle, and a server that is capable of exchanging information with the vehicle air conditioning control device. The control specification change system also comprises a use environment information acquisition unit for acquiring use environment information pertaining to the air conditioning device, a use environment change determination unit for determining changes in the use environment information acquired by the use environment information acquisition unit, a change control specification selection unit for selecting control specifications that correspond to the use environment changes determined by the use environment change determination unit, a simulation execution unit for temporarily setting the change control specifications selected by the change control specification selection unit and simulating operations of the vehicle air conditioning control device, and a determination unit for determining the results of the simulation executed by the simulation execution unit. When it is assessed that the determination by the determination unit is suitable, the selected change control specifications are confirmed as the control specifications.
[Problem] To provide an air-conditioning control system and an air-conditioning control method that, even when there is a sudden change in environment outside of a vehicle cabin, are capable of performing air-conditioning control without giving discomfort to an occupant. [Solution] This air-conditioning control system controls a vehicular air-conditioner for air conditioning inside a vehicle cabin, the air-conditioning control system comprising: a vehicle-cabin outside environment prediction unit that, from at least route information on a vehicle and information on the environment inside and outside of the vehicle cabin, predicts the environment outside of the vehicle cabin after a prescribed period of time; an air-conditioning prediction unit that, on the basis of the predicted result of the environment outside of the vehicle cabin, predicts an air-conditioning content after the prescribed period of time in the air-conditioner; and a transition mode execution unit that, in response to a change in the predicted environment outside of the vehicle cabin, executes a transition mode in which the air-conditioning content of the vehicular air-conditioner is changed from the current air-conditioning content to the predicted air-conditioning content after the prescribed period of time.
[Problem] To provide a motor with which a busbar unit can be easily and stably fixed to a stator even in the case of a magnet wire having a narrow diameter. [Solution] An insulator 27 constituting a stator 21 of a motor includes: a plurality of grooves 31 formed on an outer surface and extending in an axial direction; and a plurality of recesses. A busbar unit 26 comprises: a plurality of positioning parts 47 that enter into the grooves 31 of the insulator 27 to position the busbar unit 26 and the stator 21; and a plurality of fixing parts that are fitted into the recesses of the insulator 27 to fix the busbar unit 26 to the stator 21.
[Problem] To provide a highly convenient driving assistance device capable of improving safety by reliably enabling an operator of a vehicle to recognize a future driving state of the vehicle. [Solution] A driving assistance device 10 including an air blowing means 12 for blowing air to an operator D of a vehicle and a control unit 11, the control unit 11 serving to: generate future traveling plan information for the vehicle; and controlling the air blowing means 12 so as to blow air in a plurality of patterns on the basis of the traveling plan information.
[Problem] To maintain comfort during a ride and to execute optimal preliminary temperature adjustment securing performance of on-board equipment by accurately predicting the boarding schedule of a user of a vehicle and in accordance with a predicted boarding schedule. [Solution] Provided is a vehicle air-conditioning system comprising: a vehicle air-conditioning device that is mounted in a vehicle and that has a refrigerant circuit and a heating-medium circuit through which circulates a heating medium that can exchange heat with the refrigerant of the refrigerant circuit, the vehicle air-conditioning device capable of executing a preliminary temperature adjustment that performs any one or both of air conditioning of a vehicle cabin and temperature regulation of on-board equipment in advance before a user of the vehicle boards the vehicle; and a control device that acquires the behavior routine of the user and behavior information indicating the behavior of the user, predicts the boarding schedule of the user on the basis of the behavior routine and the behavior information, determines a start schedule for the preliminary temperature adjustment in accordance with the boarding schedule, and instructs the vehicle air-conditioning device to start the preliminary temperature adjustment on the start schedule.
[Problem] To precisely estimate environment information for a planned travel route of a vehicle by using environment information that has been acquired from a plurality of other vehicles, and implement air conditioning control that is based on the estimated environment information, thereby making it possible to maintain comfort by minimizing situations in which air conditioning control for maintaining the environment in the vehicle interior does not occur in time due to a sudden change in environment. [Solution] Provided is an air conditioning control system for a vehicle, said air conditioning control system being characterized by comprising: an air conditioning device that performs air conditioning in the vehicle interior; an air conditioning control unit that directs the air conditioning of the air conditioning device; a route determination unit that determines a planned travel route; and a communication unit that communicates with other vehicles within a communication range, wherein the communication unit acquires route information including travel route information and environment information stored by the plurality of other vehicles, the air conditioning control unit acquires, from among the plurality of items of acquired route information, the environment information for travel route information relating to the planned travel route, estimates the average value or the median value of the acquired environment information as environment information for the planned travel route, and directs the air conditioning of the air conditioneing device on the basis of the estimated environment information.
[Problem] To reduce increasing vehicle costs by omitting an expensive sensor in a heat management control system for a vehicle and also implement highly accurate heat management control comparable with a system in which the omitted sensor is mounted. [Solution] A heat management control system for a vehicle comprises: a first vehicle including a specific sensor for detecting specific heat management information, a plurality of sensors for detecting other information different from the specific heat management information, and a control device for performing vehicle control including heat management control based on detection information of the specific sensor and the plurality of sensors; and a second vehicle including a control device for performing vehicle control including heat management control comparable with that of the first vehicle without the specific sensor. The control device of the second vehicle uses an estimation model trained with, as training data, the specific heat management information detected by the first vehicle and related information related to the specific heat management information to perform the heat management control on the basis of estimation information of the specific sensor obtained through the trained estimation model.
[Problem] To provide a motor for an electric compressor, wherein the number of components can be reduced and an assembly process can be simplified, while improving insulation. [Solution] In this motor for an electric compressor, a core 22 of a stator 21 is formed from an inner core 26 that has a plurality of adjacent teeth 27, and an outer core 28 that is joined to the outside of the inner core 26 to form a magnetic path, and insulators 33, 34 that have been provided with windings 23 are mounted on respective teeth 27. The insulators 33 integrally have winding mounting sections 37 to which the windings 23 are provided, inside wall sections 38 located to the inside of the winding mounting sections 37, and inside insulating sheet sections 41 protruding outward from the inside wall sections 38. The inside insulating sheet sections 41 are positioned between adjacent windings 23 during a condition in which the insulators 33 are mounted on the teeth 27.
H02K 3/34 - Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation
[PROBLEM] To suppress the accumulation of liquid refrigerant in a refrigerant heat medium heat exchanger, using less electric power and without performing a refrigerant recovery action for a refrigerant circuit, and to prevent the refrigerant circuit from reaching refrigerant-insufficient operation, at times such as when the operation mode of the refrigerant circuit is switched. [SOLUTION] An air conditioning device for a vehicle that performs air conditioning in a vehicle interior using heat radiation and heat absorption in a refrigerant circuit comprises a refrigerant heat medium heat exchanger in which a refrigerant in the refrigerant circuit and a heat medium undergo heat exchange, a heat medium circuit that circulates the heat medium, and a control device that controls the actions of the refrigerant circuit and the heat medium circuit. When it is estimated that the liquid refrigerant remains in the refrigerant heat medium heat exchanger, the control device executes a liquid refrigerant evaporation mode for evaporating the liquid refrigerant.
[Problem] To adjust the temperature of a prescribed on-vehicle device while facilitating suppression of power consumption. [Solution] A vehicular air conditioning system 1 includes: a heat pump unit 2 that circulates a refrigerant by repeating gas-liquid phase changes; an air conditioning unit 3 that generates a conditioned air, which is adjusted in temperature through heat exchanging with a heat medium having been heat-exchanged with the refrigerant, and that blows the conditioned air into a cabin; and a device temperature adjustment unit 5 that adjusts the temperature of a prescribed on-vehicle device X mounted on a vehicle. The heat pump unit 2 generates, for the refrigerant, at least a high-temperature refrigerant Rh having a first temperature, a low-temperature refrigerant Rc having a second temperature lower than the first temperature, and a medium-temperature refrigerant Rm having a third temperature that falls between the first temperature and the second temperature. The device temperature adjustment unit 5 adjusts the temperature of the on-vehicle device X using the medium-temperature refrigerant Rm.
H01M 10/663 - Heat-exchange relationships between the cells and other systems, e.g. central heating systems or fuel cells the system being an air-conditioner or an engine
The present invention addresses the problem of providing a sliding member to which self-lubricating properties are imparted while maintaining an effect of improving wear resistance through plating. The present invention is characterized in that: the sliding member has a first sliding body and a second sliding body that slides on a surface of the first sliding body; the second sliding body has a structure in which a base material, a first coating layer, and a second coating layer are layered in this order; the surface of the first sliding body and the second coating layer slide against each other; and the first coating layer is harder than the surface of the first sliding body and the second coating layer.
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
C23C 18/36 - Coating with one of iron, cobalt or nickelCoating with mixtures of phosphorus or boron with one of these metals using reducing agents using hypophosphites
C23C 18/52 - Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coatingContact plating by reduction or substitution, i.e. electroless plating using reducing agents for coating with metallic material not provided for in a single one of groups
[Problem] To effectively reduce a deformation amount caused by a clamp during processing. [Solution] An electric compressor 1 includes an inverter case 50 that is provided to one end of a housing 40 and accommodates an inverter 30. The inverter case 50 includes: a case body 51 having a bottom wall 51a attached to one end of the housing 40, and a side wall 51b that extends to the opposite side of the housing 40 from an edge of the bottom wall 51a and forms an inverter accommodation opening 50a; and a case cover 52 having a cover seal surface 521 that closes off the inverter accommodation opening 50a of the case body 51, and that faces a body seal surface 511, which is an annular end face of the side wall 51b. The case body 51 has a body-side clamp piece 53 that protrudes from the outer surface of the side wall 51b and is clamped from a direction orthogonal to the body seal surface 511, and the case cover 52 has a cover-side clamp piece 54 that protrudes from an outer edge 52b of itself and is clamped from a direction orthogonal to the cover seal surface 521.
F04B 39/00 - Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups
F04B 39/14 - Provisions for readily assembling or disassembling
F04B 41/00 - Pumping installations or systems specially adapted for elastic fluids
H02M 7/48 - Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
[PROBLEM] To provide an electric compressor capable of effectively cooling a winding of an electric motor. [SOLUTION] An electric compressor 1 includes an electric motor 6 that rotates a rotary shaft 5, and a compression mechanism 7 that is driven by the rotation of the rotary shaft 5. The electric motor 6 includes: a cylindrical stator 61 that includes a stator core 62 and a winding 63, and is fixed to an inner peripheral surface of a body housing 2; and a rotor 64 that rotates integrally with the rotary shaft 5 inside the stator 61. Further, the electric motor 6 has, on the outside of the winding 63, a guide part 66 that guides some of a refrigerant, which has flowed in from a suction port 24 formed in the body housing 2, toward the winding 63.
F04B 39/00 - Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups
F04C 29/00 - Component parts, details, or accessories, of pumps or pumping installations specially adapted for elastic fluids, not provided for in groups
H02K 3/24 - Windings characterised by the conductor shape, form or construction, e.g. with bar conductors with channels or ducts for cooling medium between the conductors
H02K 9/04 - Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
[Problem] To provide an air-conditioning apparatus for work machines that improves energy efficiency with a simple configuration. [Solution] In an air-conditioning apparatus 10 for a work machine, a heat medium circuit 20 comprises: a first heat medium flow path 21a in which a heat medium circulation device 22 is installed; a second heat medium flow path 21b in which a heat radiator 23 is installed; and a third heat medium flow path 21c in which an in-vehicle-device temperature control unit 24 is installed. The first heat medium flow path 21a and the second heat medium flow path 21b respectively constitute air-conditioning heat medium circulation paths 21a, 21b. The first heat medium flow path 21a and the third heat medium flow path 21c respectively constitute in-vehicle-device heat medium circulation paths 21a, 21c. The heat medium circuit 20 also comprises: a first heat medium heating device 29a installed in the first heat medium flow path 21a; and a second heat medium heating device 29b installed in the second heat medium flow path 21b.
An electric compressor (1) includes an electric motor (2), a drive circuit (inverter (3)) that drives the electric motor (2), a compression mechanism (4) driven by the electric motor (2) to compress a refrigerant, a conductive member (lead pin (15)) connected to the drive circuit (inverter (3)), a conducting wire (7) drawn from the electric motor (2), a connector terminal (11) that connects the conducting wire (7) and the conductive member (lead pin (15)), a connector housing (12) that includes an opening (13) through which the conducting wire (7) is passed and that houses the connector terminal (11), a seal member (20) interposed between an inner wall of the opening (13) and the conducting wire (7), and a press member (30) that presses the seal member (20) toward the conducting wire (7).
F04C 18/02 - Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
F04C 27/00 - Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids
An electric compressor (1) includes an electric motor (5) including a stator core (51), a stator coil (52) formed by winding a conducting wire (60) around the stator core (51), and a rotor (53) attached to a rotating shaft (4), the electric motor (5) being for rotating the rotating shaft (4) via the rotor (53) through energization of the stator coil (52), a compression mechanism (3) that is driven by the rotating shaft (4) to compress a refrigerant, and a housing (2) including an intake port (21a) and a discharge port (24a), the housing (2) being for housing the rotating shaft (4), the electric motor (5), and the compression mechanism (3), where the refrigerant drawn in by the intake port (21a) is compressed by the compression mechanism (3) and discharged from the discharge port (24a). The electric compressor (1) includes a protection member (58) for covering a part (61), of the conducting wire (60), that faces the intake port (21a).
H02K 3/34 - Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation
[Problem] To reduce the power required for controlling the temperature of on-board equipment and for air conditioning a vehicle interior after initiating travel, and to increase the cruising distance of an electric vehicle. [Solution] Provided is a heating medium management system comprising: an electric vehicle that travels using electric power supplied from a battery and is provided with a heating medium circuit that adjusts the temperature of at least the battery; and a heating medium supply device that is provided outside of the electric vehicle, adjusts the temperature of the heating medium, and supplies the heating medium to the heating medium circuit. In the heating medium supply device, information indicating the temperature and target temperature range of the heating medium of the heating medium circuit is acquired, and if the temperature of the heating medium of the heating medium circuit is not within the target temperature range, the heating medium stored in the heating medium supply device is supplied to the heating medium circuit.
B60L 58/24 - Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
B60H 1/22 - Heating, cooling or ventilating devices the heat being derived otherwise than from the propulsion plant
A control device of a vehicle air-conditioning apparatus, in a heating operation by use of a heating unit, has at least a temperature control target heat absorption heating mode in which a refrigerant that has been discharged from a compressor and has dissipated heat in the heating unit absorbs heat in a temperature control target-specific heat exchanger, and a combined heating mode in which the refrigerant that has been discharged from the compressor and has dissipated heat in the heating unit absorbs heat in an outdoor heat exchanger and the temperature control target-specific heat exchanger, and during the heating operation in the combined heating mode, performs control in such a manner as to determine an operating state that allows the refrigerant to accumulate in the outdoor heat exchanger, and switch to the temperature control target heat absorption heating mode to execute the heating operation.
A heat medium temperature adjustment system includes a heat medium circuit configured to circulate heat medium having a temperature controlled by a heat exchange with a heat source.
A heat medium temperature adjustment system includes a heat medium circuit configured to circulate heat medium having a temperature controlled by a heat exchange with a heat source.
The heat medium circuit includes a pump configured to pump the heat medium, and a plurality of heat exchangers for temperature-adjustment subjects configured to perform heat exchanges with temperature-adjustment subjects. The heat medium circuit is configured to form a series flow path to connect the pump to the plurality of heat exchangers for temperature-adjustment subjects when a system malfunction occurs.
[Problem] To perform notification regarding information relating to battery degradation suppression control at an accurate timing. [Solution] An information processing device 1 includes: an acquisition unit 12 that acquires degradation influence information influencing degradation of a battery 22 installed in a vehicle 2; a determination unit 14 that, on the basis of the degradation influence information acquired by the acquisition unit 12, determines whether the battery 22 is being used in a degradation promoting state; and a notification unit 15 that performs notification of information relating to battery degradation suppression control for suppressing degradation of the battery 22 installed in the vehicle 2 when it has determined by the determination unit 14 that the battery 22 is being used in the degradation promoting state.
B60L 3/00 - Electric devices on electrically-propelled vehicles for safety purposesMonitoring operating variables, e.g. speed, deceleration or energy consumption
B60L 50/60 - Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
B60L 58/16 - Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to battery ageing, e.g. to the number of charging cycles or the state of health [SoH]
B60L 58/24 - Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
G06Q 10/06 - Resources, workflows, human or project managementEnterprise or organisation planningEnterprise or organisation modelling
H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
H02J 7/04 - Regulation of the charging current or voltage
[Problem] To provide an information processing device capable of proposing a battery degradation suppression control to a user in accordance with user intention on a vehicle usage. [Solution] An information processing device 1 includes: an acquiring unit 12 for acquiring operational information of a vehicle 3; a determination unit 14 for determining, on the basis of the operational information acquired by the acquiring unit 12, whether or not the vehicle 3 is eco-driven; and a proposal unit 15 for outputting information for proposing, to the user of the vehicle 3, a battery degradation suppression control that suppresses the degradation of a battery 34 mounted on the vehicle 3 when it is determined by the determination unit 14 that the vehicle 3 is eco-driven.
B60L 58/10 - Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
B60L 1/00 - Supplying electric power to auxiliary equipment of electrically-propelled vehicles
B60L 3/00 - Electric devices on electrically-propelled vehicles for safety purposesMonitoring operating variables, e.g. speed, deceleration or energy consumption
B60L 50/60 - Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
B60L 58/12 - Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
B60L 58/16 - Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to battery ageing, e.g. to the number of charging cycles or the state of health [SoH]
B60L 58/24 - Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
[Problem] To notify of information about a battery degradation suppression control at an appropriate timing. [Solution] An information processing device 1 includes: an acquiring unit 12 for acquiring estimated battery replacement date information that indicates the estimated replacement date of a battery 22 mounted on a vehicle 2; a determination unit 14 for determining whether or not the date of usage of the battery 22 reached a predetermined date that is the day before a predetermined period of time from the estimated replacement date acquired by the acquiring unit 12; and a notification unit 15 for notifying of information about a battery degradation suppression control for suppressing degradation of the battery 22 mounted on the vehicle 2 when it is determined by the determination unit 14 that the date of usage of the battery 22 has reached the predetermined date.
B60L 3/00 - Electric devices on electrically-propelled vehicles for safety purposesMonitoring operating variables, e.g. speed, deceleration or energy consumption
B60L 50/60 - Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
B60L 53/80 - Exchanging energy storage elements, e.g. removable batteries
B60L 58/16 - Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to battery ageing, e.g. to the number of charging cycles or the state of health [SoH]
B60L 58/24 - Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
G06Q 10/06 - Resources, workflows, human or project managementEnterprise or organisation planningEnterprise or organisation modelling
H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
H02J 7/04 - Regulation of the charging current or voltage
[Problem] To provide an electric compressor that has a simple configuration in which a substrate, a switching element, and a fixing plate which presses the switching element against a housing are integrated to form an assembly and can be assembled to the housing. [Solution] An electric compressor 1 in which a substrate 51 that has a switching element 5 connected thereto is assembled to a housing 11, said electric compressor 1 being provided with a fixing plate 57 that has spring properties and that is disposed between the switching element 5 and the substrate 51, wherein the fixing plate 57 is held by the switching element 5 and presses the switching element 5 against the housing 11 in a state where the substrate 51 is assembled to the housing 11. The fixing plate 57 has a spring part that presses the switching element 5 against the housing 11 and a positioning part that engages with a through-hole of the switching element 5.
F04C 29/00 - Component parts, details, or accessories, of pumps or pumping installations specially adapted for elastic fluids, not provided for in groups
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
H05K 7/14 - Mounting supporting structure in casing or on frame or rack
80.
HEAT EXCHANGER AND VEHICLE AIR CONDITIONING DEVICE
[Problem] To provide: a heat exchanger with which it is possible to achieve highly efficient heat exchange, with which it is possible to achieve a cost reduction associated with a reduction in the number of components and to achieve space savings, and with which damage to a device exterior (case) can be prevented; and a vehicle air conditioning device provided with the heat exchanger. [Solution] A heat exchanger 10 comprises a plurality of heat exchange cores 11 through the interior of which a first heat medium m1 flows, and a case 3 having an interior that is demarcated into a plurality of accommodating chambers 30 by a dividing portion 30P, wherein: the heat exchange cores 11 are accommodated respectively in accommodating chambers 30 that are adjacent to one another with the dividing portion 30P therebetween; the accommodating chambers 30 are configured such that a second heat medium m2 circulates through the respective interiors thereof, such that heat exchange occurs between the second heat medium m2 and the first heat medium m1; the accommodating chambers 30 each include an inflow port 36 and an outflow port 37 for the second heat medium m2, and are configured such that the second heat medium m2 circulates within the accommodating chamber 30 to perform heat exchange between the second heat medium m2 and the first heat medium m1; and inside each accommodating chamber 30, a flow passage Fd on the second heat medium m2 downstream side is provided in a location far from the dividing portion 30P.
[Problem] To provide a heat exchanger and a vehicle air conditioning device provided with the same, the heat exchanger having a reduced number of components, thereby enabling cost reduction and space savings and also achieving better quick heating and cooling properties when used in a water circuit device. [Solution] A heat exchanger 10 comprises a plurality of heat exchange cores 11 in which a first heat medium m1 flows, and a case 3 which includes a plurality of accommodating chambers 30 and in which a second heat medium m2 flows, wherein: a plurality of heat exchange cores 11 are accommodated in each of the plurality of accommodating chambers 30; the case 3 is provided with a switching section 150 for the path of the second heat medium m2, the switching section 150 being capable of selectively switching one of a plurality of in-flow paths to and/or a plurality of out-flow paths from at least one accommodating chamber 30 of the plurality of accommodating chambers 30.
B60H 1/22 - Heating, cooling or ventilating devices the heat being derived otherwise than from the propulsion plant
F28F 9/22 - Arrangements for directing heat-exchange media into successive compartments, e.g. arrangements of guide plates
F28F 27/02 - Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus for controlling the distribution of heat-exchange media between different channels
[Problem] To reduce the number of parts compared with conventional compressors while ensuring heat dissipation (cooling performance) of a noise suppression element and a voltage smoothing element. [Solution] Provided is an electric compressor 1 wherein a target electronic-component group 5A, which includes a noise suppression element 54a and a voltage smoothing element 51a that are in orientations of being attached to a circuit board 7 of an inverter 5, is covered by a block body 8 made of thermoplastic resin formed into a block shape. In this electric compressor 1, the circuit board 7 has one surface 7a that faces a bottom wall 611 of an inverter accommodating portion 6, the bottom wall being located on the side of a housing 4, and to which the target electronic-component group 5A is attached; the inverter accommodating portion 6 has a plurality of recesses 651 formed in a section of the bottom wall 611, the section facing an end surface 8a of the block body 8; and the block body 8 has a plurality of protrusions 8b that protrude from the end surface 8a toward the bottom wall 611 and each of which is fitted into the recess 651 that faces thereto, among the plurality of recesses 651.
F04B 39/00 - Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups
F04C 29/00 - Component parts, details, or accessories, of pumps or pumping installations specially adapted for elastic fluids, not provided for in groups
[Problem] In a refrigerant unit in which components of a refrigerant circuit are unitized, to make refrigerant flow passages connecting the components as short as possible to reduce the size of the refrigerant unit. [Solution] Provided is a refrigerant unit comprising a refrigerant circuit and a support member for supporting components of the refrigerant circuit in a consolidated manner, in which: the refrigerant circuit includes, at least, a compressor, a first heat exchanger, and a plurality of second heat exchangers having a different function from the first heat exchanger; the support member has a first fixing surface for fixing the compressor, and a second fixing surface for fixing the first heat exchanger and the plurality of second heat exchangers; and a first refrigerant pipe joining the compressor to the first heat exchanger and a second refrigerant pipe joining the compressor to the plurality of second heat exchangers are provided so as to penetrate through the first fixing surface and the second fixing surface.
2a2a (hereinafter, placement surface direction D2), that stand erect in the height direction D1, which is the direction in which the side wall surfaces 3a approach/extend away from the component placement surface 2a, and that face component side surfaces 202c of the switching element 202. A first thermally conductive agent 5 that is thermally conductive is provided between each of the pair of side wall surfaces 3a and the component side surfaces 202c, and between the component placement surface 2a and the component bottom surface 202a.
Provided is an on-vehicle electric compressor that can improve the effect of reducing noise generated from an inverter circuit, or the like, without increasing the capacitance of a Y capacitor. The on-vehicle electric compressor (1) comprises an inverter board (17) mounted, with an inverter circuit (34) that converts a direct current from a high-voltage battery (41) into an alternating current and applies the alternating current to a motor (8), in a metal casing (2). The on-vehicle electric compressor (1) comprises: a common mode coil (54) inserted into high-voltage power lines (46, 47) from the high-voltage battery (41); a Y capacitor (56) connected between the high-voltage power lines (46, 47) and the casing (2); and an inductor (57) connected in series to the Y capacitor (56).
H02M 7/48 - Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
F04B 39/00 - Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups
F04C 29/00 - Component parts, details, or accessories, of pumps or pumping installations specially adapted for elastic fluids, not provided for in groups
H02M 1/14 - Arrangements for reducing ripples from DC input or output
H02M 1/44 - Circuits or arrangements for compensating for electromagnetic interference in converters or inverters
[Problem] To achieve, in a refrigerant unit in which components of a refrigerant circuit is unitized, suppression in heat transfer between heat exchangers having mutually different functions, facilitation in maintaining performance of a heat management system, and generation of a required heat amount. [Solution] Provided is a refrigerant unit that comprises a refrigerant circuit and a support member that collectively supports components of the refrigerant circuit. The refrigerant circuit has at least a pressure reduction device, a first heat exchanger, and a plurality of second heat exchangers having functions different from that of the first heat exchanger. In the support member, the first heat exchanger and the second heat exchangers are respectively arranged on one side and on the other side across the pressure reduction device.
[Problem] To provide a heat exchanger which has a reduced number of components while being capable of highly efficient heat exchange, thereby enabling cost savings and space savings, and a vehicle air conditioning device provided with the heat exchanger. [Solution] A heat exchanger 10 comprises a plurality of heat exchange cores 11 through the interior of which a first heat medium m1 flows, and a case 3 which includes a plurality of accommodating chambers 30 and through the interior of which a second heat medium m2 flows, wherein: the plurality of heat exchange cores 11 are accommodated respectively in the plurality of accommodating chambers 30; the second heat medium m2 flows through the interior of each of the accommodating chambers 30; and heat is exchanged between the second heat medium m2 and the first heat medium m1.
F28D 1/06 - Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with the heat-exchange conduits forming part of, or being attached to, the tank containing the body of fluid
B60H 1/22 - Heating, cooling or ventilating devices the heat being derived otherwise than from the propulsion plant
[Problem] To provide a vehicle air conditioning device that performs a two-layer flow mode, wherein a clearance is provided that satisfactorily maintains ease of assembly in a penetration portion of a partition part, and any drop in functioning in two-layer flow mode due to air leakage is prevented without using a seal. [Solution] This vehicle air conditioning device comprises an air introduction part that introduces inside air and outside air selectively, and an air temperature regulating unit that regulates the temperature of air introduced by the air introduction part, the air temperature regulating part having a first passage and a second passage that are partitioned by a partition part, and being provided with a filter and heat exchanger that penetrate through the partition part and span the first passage and the second passage. This vehicle air conditioning device is characterized in that the partition part has a first partition part on the upwind side of the filter and a second partition part on the downwind side of the filter, and a first partition position closest to the filter in the first partition part is disposed closer to the second passage relative to a second partition position closest to the filter in the second partition part.
[Problem] To provide a vehicle air conditioning device that avoids unnecessary defrosting operations and fully utilizes the capacity of an outside-air heat-absorption heating operation, thereby making it possible to suppress power waste. [Solution] Provided is a vehicle air conditioning device 100 comprising: a refrigerant circuit R including a compressor 1; an indoor heat exchanger 4; an air conditioning circuit E having an external heat exchange section 7; and a control device 200 that controls the refrigerant circuit R, the control device 200 being capable of selectively executing an outside-air heat-absorption heating operation for absorbing heat at the external heat exchange section 7, and a defrosting operation for defrosting the external heat exchange section 7. The control device 200 calculates a travel time to a destination and an operation time for the outside-air heat-absorption heating operation until heat from the outside air can no longer be absorbed at the external heat exchange section 7 due to frost, and if the travel time is longer than the operation time, the control device 200 executes the defrosting operation such that the operation time becomes at least equal to or greater than the travel time.
[Problem] To provide an electric compressor having improved insulation between terminals of switching elements forming an inverter. [Solution] An electric compressor includes an electric motor, a compression mechanism driven by the electric motor, and an inverter for driving the electric motor, wherein the inverter includes six switching elements Q1 to Q6, each having three terminals 24a, 24b, 24c protruding outward, and a root portion of the terminal 24b positioned in the middle among the three terminals 24a, 24b, 24c of each switching element Q1 to Q6 is covered by a cover part 31 formed of an insulating resin.
F04B 39/00 - Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups
F04C 29/00 - Component parts, details, or accessories, of pumps or pumping installations specially adapted for elastic fluids, not provided for in groups
H02M 7/48 - Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
[Problem] To provide a heat exchanger having a side plate suitably connected to a side surface of a header tank (tank cap, etc.). [Solution] A heat exchanger of the present invention comprises: a plurality of tubes in which a heat medium flows; a pair of header tanks which are provided to both ends of the tubes in the extending direction and into which the tubes are inserted; and a pair of side plates provided at the outer side of both ends of the tubes in the layering direction. The side plates have engagement parts that engage with projections provided to the side surfaces of the header tanks.
F28D 1/053 - Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with the heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
F28F 9/00 - CasingsHeader boxesAuxiliary supports for elementsAuxiliary members within casings
[Problem] To evenly distribute a heat medium to a plurality of tubes connected to a header tank to thereby improve the performance of the heat exchanger. [Solution] A heat exchanger which is equipped with a plurality of tubes arranged in parallel and a pair of header tanks connected to both ends of the plurality of tubes and in which a heat medium from one of the header tanks is distributed to the plurality of tubes and the separate flows of the heat medium are caused to come together in the other header tank, wherein the header tank has, in the passage through which the heat medium flows, a distribution regulation part for regulating the distribution of the heat medium to the tubes.
[Problem] To simply and accurately detect leakage in header tanks 201, 202 caused by a brazing defect of a partition part 23 provided inside the header tanks. [Solution] This heat exchanger comprises: a plurality of tubes; and a pair of header tanks connected to both ends of the plurality of tubes. The header tanks are each provided with a partition part which partitions the inside of the header tank into a plurality of regions. Joint parts between the inner walls of the header tanks and the partition part have: a first joint section joined to the partition part in one region among the plurality of regions; a second joint section joined to the partition part in another region; a gap formed between the first joint section and the second joint section along the partition part; and a communication hole which causes the gap and the outside of the header tanks to communicate.
A vehicle air conditioning apparatus includes: a refrigerant circuit including: a compressor; an outdoor heat exchanger; a heat releasing device; a first electronic expansion valve; a refrigerant-heat medium heat exchanger; and a second electronic expansion valve; a heat medium circuit; and a controller. The controller has heating modes including: an outdoor air heat absorption heating mode to absorb heat from the outdoor heat exchanger; and a waste heat recovery heating mode to absorb heat from the refrigerant-heat medium heat exchanger. When the outdoor air heat absorption heating mode is switched to the waste heat recovery heating mode, the controller controls the first electronic expansion valve to be closed, and controls a degree of superheat of the refrigerant to be increased on a downstream side of the refrigerant-heat medium heat exchanger.
A vehicle air conditioning apparatus includes: a refrigerant circuit including a compressor configured to compress refrigerant, an outdoor heat exchanger configured to perform a heat exchange between the refrigerant and outdoor air, and a heat absorption heat exchanger configured to absorb heat from a heat-absorbed subject into the refrigerant; and a controller configured to control the refrigerant circuit. The controller can selectively perform defrosting modes including: a hot gas defrosting mode to defrost the outdoor heat exchanger by the refrigerant compressed by the compressor; and a heat absorption defrosting mode to defrost the outdoor heat exchanger by the refrigerant absorbing the heat from the heat-absorbed subject and compressed by the compressor. The controller sets a selecting condition to preferentially select the heat absorption defrosting mode, and a switching condition to switch the heat absorption defrosting mode to the hot gas defrosting mode and performs the hot gas defrosting mode.
An air conditioning apparatus includes a refrigerant circuit including a plurality of heat exchangers (a condenser and an evaporator), and an axial fan configured to send air to the heat exchangers. The refrigerant circuit and the axial fan are accommodated in a case. The heat exchangers are disposed in a direction orthogonal to an air flow direction, and the axial fan is disposed on one side of an arrangement direction of the heat exchangers, and supplies the air to the heat exchangers.
F24F 11/74 - Control systems characterised by their outputsConstructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
[Problem] To smoothly execute a preparatory operation performed at the start of a hot gas heating operation and obtain desired heating performance. [Solution] This vehicular air-conditioning device comprises: a refrigerant circuit including a compressor, an indoor heat exchange unit, and an external heat exchange unit; an air-conditioning unit having an indoor heat exchange unit disposed therein; and a control device that controls the refrigerant circuit and the air-conditioning unit. The refrigerant circuit has a hot gas bypass that reduces the pressure of, and returns to the compressor, at least a portion of a refrigerant compressed by the compressor, without passing through the indoor heat exchange unit and the external heat exchange unit. The control device: is capable of executing a hot gas heating operation in which the portion of the refrigerant compressed by the compressor is caused to release heat in the indoor heat exchanger, without being caused to absorb heat in the external heat exchange unit, so as to heat the vehicle interior; performs, at the start of the hot gas heating operation, a preparatory operation in which the refrigerant is circulated through the refrigerant circuit, while preventing or suppressing heat radiation in the indoor heat exchange unit, until the refrigerant reaches a prescribed state; and restricts air volume adjustment of the volume of air blown into the vehicle interior at least during the preparatory operation.
[Problem] To eliminate a feeling of discomfort or anxiety for an occupant during preparatory operation performed during startup of a hot gas space heating operation. [Solution] This vehicle air conditioning device comprises a refrigerant circuit including a compressor, an indoor heat exchanging portion, and an external heat exchanging portion, an air conditioning unit inside which the indoor heat exchanging portion is disposed, and a control device for controlling the refrigerant circuit and the air conditioning unit, wherein: the refrigerant circuit includes a hot gas bypass for reducing the pressure of at least a portion of a refrigerant that has been compressed by the compressor, and returning the refrigerant to the compressor, without passing through the indoor heat exchanging portion and the external heat exchanging portion; the control device is capable of executing a hot gas space heating operation in which heat is not absorbed by the refrigerant in the external heat exchanging portion, and all or a portion of the refrigerant compressed by the compressor is caused to dissipate heat in the indoor heat exchanging portion to heat a vehicle cabin interior; during startup of the hot gas space heating operation, preparatory operation is performed in which dissipation of heat in the indoor heat exchanging portion is prevented or suppressed until the refrigerant reaches a predetermined state, and the refrigerant is circulated in the refrigerant circuit; and during the execution of the preparatory operation, an occupant is notified that the preparatory operation is being executed.
[Problem] To make it possible to adjust a space heating capability of hot gas space heating when adjustment cannot be supported by controlling only a rotational speed of a compressor. [Solution] This vehicle air conditioning device is provided with a control device for controlling a refrigerant circuit and an air conditioning unit, wherein: the refrigerant circuit includes a hot gas bypass for reducing the pressure of at least a portion of a refrigerant that has been compressed by the compressor, and returning the refrigerant to the compressor, without passing through an indoor heat exchanging portion and an external heat exchanging portion; the control device is capable of executing a hot gas space heating operation in which heat is not absorbed by the refrigerant in the external heat exchanging portion, and a portion of the refrigerant compressed by the compressor is caused to dissipate heat in the indoor heat exchanging portion to heat a vehicle cabin interior; and at least either of a pressure-reducing portion located between the indoor heat exchanging portion and the compressor, or a hot gas pressure-reducing portion provided in the hot gas bypass is opened or closed during execution of the hot gas space heating.
[Problem] To provide a vehicular air-conditioning device that comprises a refrigerant circuit that switches between heat absorption heating operation and hot gas heating operation, wherein an intermediate operation mode is provided to suppress retention of refrigerant at an exterior heat exchanger and ensure sufficient heating performance. [Solution] A vehicular air-conditioning device according to the present invention comprises a control device that controls a refrigerant circuit and an air-conditioning unit. The refrigerant circuit has a hot gas bypass. The control device can perform hot gas heating operation that heats the inside of a cabin by making a portion of refrigerant compressed at a compressor radiate heat at an interior heat exchanger without making refrigerant absorb heat at an exterior heat exchanger and heat absorption heating operation that makes refrigerant absorb heat at the exterior heat exchanger. During the hot gas heating operation, refrigerant is passed through the exterior heat exchanger while heat exchange at the exterior heat exchanger is suppressed.
