Abstract: There are included a first heat exchanger (42) for causing heat to be exchanged between refrigerant and air in an interior of a vehicle (1), a heating circuit (36) for causing the refrigerant with a temperature higher than that of the air in the interior of the vehicle to circulate through the first heat exchanger, a secondary battery (21) where charging and discharging of power are performed, a cooling water circuit (50) for causing cooling water that exchanges heat with the secondary battery to circulate, a second heat exchanger (61) for causing heat to be exchanged between the refrigerant and the cooling water, the second heat exchanger being provided in a manner including a portion of the heating circuit downstream of the first heat exchanger and a portion of the cooling water circuit, and a case (23) for covering the secondary battery, the cooling water circuit, and the second heat exchanger.

Abstract: A cooling and battery cooling mode is performed to release the heat from the refrigerant in a heat releasing unit and an outdoor heat exchanger and to absorb the heat into the refrigerant in a heat absorbing unit and a refrigerant-heat medium heat exchanger, and a heating and battery cooling mode is performed to release the heat from the refrigerant in the heat releasing unit and to absorb the heat into the refrigerant in the outdoor heat exchanger and the in-vehicle device heat exchanger. In a case where the cooling and battery cooling mode is performed, when a temperature of the heat absorbing unit is lower than a target value of the temperature of the heat absorbing unit even though the flowing of the refrigerant into the heat absorbing unit is blocked, the operation mode is moved to the heating and battery cooling mode.

Abstract: There is provided a motor control device which enables torque ripple suppressing control high in followability by executing direct voltage control. A motor control device includes a voltage command calculation unit 15 which calculates a d-axis voltage command value Vdref and a q-axis voltage command value Vqref from a d-axis current command value id* and a q-axis current command value iq* of a motor 6, a feed forward command value calculation unit 23 which calculates a qi-axis voltage feed forward command value Vqff* for generating a q-axis current ripple on the basis of spatial harmonic parameters and the frequency characteristics of a motor winding, and a subtraction unit 10 which subtracts the q-axis voltage feed forward command value Vqff* calculated by the feed forward command value calculation unit 23 from the q-axis voltage command value Vqref calculated by the voltage command calculation unit 15.

Abstract: [Problem] A scroll compressor is provided which has improved workability when a back pressure chamber and a compression chamber are communicated with each other. [Solution] A scroll compressor 1 includes a back pressure chamber 39 formed in a back surface of a mirror plate 31 of a movable scroll 22 in the scroll compressor 1, and a communication hole 51 which is formed in the mirror plate 31 of the movable scroll 22 and communicates the back pressure chamber 39 and a compression chamber 34 with each other. The communication hole 51 is constituted of a large-diameter hole section 52 located on the back pressure chamber 33 side of the mirror plate 31 of the movable scroll 22, and a small-diameter hole section 53 which continues from the large-diameter hole section 52 to reach the compression chamber 34.

Abstract: A scroll compressor is provided which is capable of performing an adjustment to appropriate back pressure in both a low-speed operation condition and an operation condition low in suction pressure by improving the position or dimension of a back pressure hole. The scroll compressor includes a back pressure chamber 29 formed on the back surface of a mirror plate 31 of a movable scroll 22, and back pressure holes 51 and 52 formed in the mirror plate of the movable scroll and providing communication between the back pressure chamber and the compression chamber 34. After the back pressure hole 52 is opened inside a lap 32 of the movable scroll in a first crank angle range, the back pressure hole 52 is temporarily closed by a lap 24 of a fixed scroll 21 and then opened inside the lap of the fixed scroll in a second crank angle range.

Abstract: The invention provides an inverter device which effectively cancels the generation of common mode noise associated with dead-time effects and misjudgement of the polarity of a phase current at switching in the case where a fluctuation in a neutral point potential of a motor is suppressed by canceling a change in a phase voltage with another change in the phase voltage. A phase voltage command operation unit 33 of a control device includes a phase current prediction part 41 which predicts a phase current at a switching timing of each phase, and a correction control part 42 which corrects a switching operation so as to cancel a change in the phase voltage applied to the motor with another change in the phase voltage, based on the phase current of each phase at the switching timing predicted by the phase current prediction part 41.

Abstract: To reduce surface pressure acting on a tip of a winding terminal portion of a spiral wall of an orbiting scroll in a scroll compressor. In a scroll compressor 10, a thrust plate 81 and a thrust sheet 82 capable of being elastically deformed are provided between an opposing surface 237 serving as a thrust receiving part and an orbiting base plate 521 of an orbiting scroll 52. A first sealing member 83 seals between the orbiting base plate 521 and the thrust sheet 82 and a second sealing member 84 having a diameter greater than that of the first sealing member 83 seals the opposing surface 237 of a second partition wall 232 and the thrust plate 81. A back pressure chamber H5 is partitioned from a suction pressure area (space H6) by the thrust plate 81, thrust sheet 82, the first sealing member 83, and the second sealing member 84. A circular concave portion 816 is formed on a surface of the thrust plate 81 on the thrust sheet 82 side.

Abstract: To provide a high-voltage apparatus control device capable of judging the connection state of a connector and discharging residual charge in a short time. A control device 1 controls an electric compressor and is provided with an interlock loop 4 annexed to a connector 9 for connecting the electric compressor to an HV battery 17. The control device 1 detects connection/disconnection of the connector 9 on the basis of the state of the interlock loop 4 and forcibly discharges residual charge in an internal smoothing capacitor 14 when disconnection of the connector 9 is detected.

Abstract: [Problem] To reduce imbalance among all movable components of a scroll compressor including a drive shaft and components fixed or connected to the drive shaft. In a scroll compressor 10, a shaft balancer 31 integrated with a drive shaft 30 includes a first weight 33 disposed on the opposite side from an eccentric pin 71 with respect to a center line CL0 of the drive shaft 30, and a bushing balancer 721 integrated with an eccentric bush 72 includes a second weight 723 disposed on the radially outer side of the eccentric bush 72 and on the opposite side from a center line CL1 of the eccentric pin 71 with respect to a center line CL2 of the eccentric bush 72. In a view from the axial direction of the drive shaft 30, the second weight 723 is symmetric with respect to a virtual line passing through the center of the drive shaft 30 and the center of the eccentric bush 72, and the first weight 33 is asymmetric with respect to the virtual line.

Abstract: Reduction of a rotational moment that occurs in an orbiting scroll is suppressed. A scroll compressor 10 includes: a fixed scroll 51; an orbiting scroll 52; an anti-rotation mechanism 300; and a back pressure chamber H5. A spiral orbiting wrap 522 of the orbiting scroll 52 is meshed with a spiral fixed wrap 512 of the fixed scroll 51. A first compression chamber C1 is formed by an inner wall surface 522a of the orbiting wrap 522 and an outer wall surface 512b of the fixed wrap 512. A second compression chamber C2 is formed by an inner wall surface 512a of the fixed wrap 512 and an outer wall surface 522b of the orbiting wrap 522. The orbiting base plate 521 of the orbiting scroll 52 includes a first through hole 701 capable of communicating the first compression chamber C1 with the back pressure chamber H5 and a second through hole 702 capable of communicating the second compression chamber C2 with the back pressure chamber H5.

Abstract: A vehicle air conditioning apparatus including: a refrigerant circuit includes: a compressor to compress refrigerant; a heat absorbing device to absorb heat from air to be supplied to a vehicle compartment; and a temperature-adjusted subject heat exchanger; a device temperature adjustment circuit connected to the refrigerant circuit via the temperature-adjusted subject heat exchanger, and configured to adjust a temperature of a temperature-adjusted subject mounted in a vehicle by the temperature-adjusted subject heat exchanger; and a controller configured to control the refrigerant circuit and the device temperature adjustment circuit.

Abstract: A power conversion device is provided which is capable of balancing impedance relatively easily and suppressing noise caused by a common mode current when a three-phase AC output is applied to drive a motor.

Abstract: To suppress reduced rotational moments that occur at a movable scroll. A scroll compressor (1) includes a fixed scroll (2), a movable scroll (3), and an anti-rotation mechanism (30). A spiral movable wrap (3b) of the movable scroll (3) meshes with a spiral fixed wrap (2b) of the fixed scroll (2). A first compression chamber (C1) is formed by an inner wall surface (3b1) of the movable wrap (3b) and an outer wall surface (2b2) of the fixed wrap (2b). A second compression chamber (C2) is formed by an inner wall surface (2b1) of the fixed wrap (2b) and an outer wall surface (3b2) of the movable wrap (3b). After a winding terminal end (3f) of the movable wrap (3b) contacts the outer wall surface (2b2) of the fixed wrap (2b) and the first compression chamber (C1) is thereby closed, a winding terminal end (2f) of the fixed wrap (2b) contacts the outer wall surface (3b2) of the movable wrap (3b) and the second compression chamber (C2) is thereby closed.

Abstract: Lubricant is satisfactorily supplied to a bearing that supports an eccentric bush. A scroll compressor (100) includes a fixed scroll (122) fixed to a housing (140), an orbiting scroll (124) that orbits with respect to the fixed scroll, and a conversion mechanism (300) that mutually converts a rotary motion of a drive shaft (166) and an orbiting motion of the orbiting scroll. The converting mechanism includes an eccentric shaft (260) that is provided on an end surface of the drive shaft and is eccentric with respect to the drive shaft, an eccentric bush (270) having a through hole (271) into which the eccentric shaft is fitted, and a bearing (280) that is press-fitted into a boss portion (250) formed on the orbiting scroll and supports an outer peripheral surface (272) of the eccentric bush. A lubricant supply passage (350) for supplying lubricant to the bearing is penetratingly formed in the eccentric bush.

Abstract: [Problem] A scroll compressor is provided which is capable of effectively reducing a pressure loss in a pathway extending from a discharge space to a discharge port. [Solution] The scroll compressor includes a discharge space 27 formed in a compressing mechanism cover 9 of a housing 11, a discharge hole 26 which is formed in a fixed scroll 21 and discharges a compressed refrigerant to the discharge space, a discharge port 51 which discharges the refrigerant to the outside of the housing, a relief passage 71 which communicates the discharge space and the discharge port with each other, and a differential pressure valve 74 which is provided in the relief passage and opens in accordance with a pressure difference between the discharge space and the discharge port. The relief passage opens in the discharge space above the discharge hole.

Abstract: The vehicle air conditioning device includes a compressor, a radiator, an outdoor heat exchanger, and an air conditioning controller, and a cabin is, air conditioned with power supplied from a battery. The air conditioning controller can perform air conditioning operation that causes a refrigerant from the compressor to radiate heat in the radiator, decompresses the refrigerant, causes the refrigerant to absorb heat in the outdoor heat exchanger so as to heat the cabin, and defrosting operation that causes the refrigerant from the compressor to radiate heat in the outdoor heat exchanger so as to defrost the outdoor heat exchanger, and determines whether it is possible to perform the defrosting operation on the basis of outside humidity.

Abstract: An inverter device is provided which is based on a discontinuous modulation method and makes it possible to further reduce common mode noise. A control device L includes a phase voltage command operation unit 33 which calculates a continuous modulation voltage command value, an inter-line modulation operation unit 34 which calculates a discontinuous modulation voltage command value which fixes an ON/OFF state of a switching element of one phase of an inverter circuit 28 and modulates an ON/OFF state of switching elements of the other two phases, and a PWM signal generation unit 36 which performs PWM control on the inverter circuit. The control device synchronizes switching timings of the switching elements of the two phases in which the ON/OFF state is modulated, and cancels out a change in a phase voltage applied to a motor 8 by a change in another phase voltage.

Abstract: There is provided an inverter-integrated electric compressor which makes it possible to effectively suppress noise caused by a common mode current while achieving a size reduction. The inverter-integrated electric compressor includes an inverter device 3 which has upper and lower arm switching elements 13 and 16 and applies a three-phase AC output to a motor M. The inverter-integrated electric compressor injuries a control board which controls the switching of the upper and lower arm switching elements 13 and 16, and a bus bar assembly 22 provided to establish wiring among a battery 24, the control board, the upper and lower arm switching elements 13 to 18, and the motor M. A normal mode coil 40, a three-phase common mode coil 41, a ferrite core 42, reflux capacitors 43 and 44, and a snubber circuit 52 are arranged in the bus bar assembly 22.

Abstract: Provided is a variable displacement compressor that is directed to cost reduction and productivity enhancement of a second control valve that adjusts an opening degree of a discharge passage for discharging a refrigerant in a controlled pressure chamber to a suction chamber. The variable displacement compressor includes the second control valve (400) configured to decrease an opening degree of the discharge passage to a minimum value when a first end surface (421a) of a valve body (420) accommodated in a valve chamber (410) comes into contact with a first end wall surface (411) of the valve chamber (410) to close a second port (432) and a third port (433), and configured to increase the opening degree of the discharge passage to a maximum value when the first end surface (421a) of the valve body (420) separates from the first end wall surface (411) of the valve chamber (410) to open the second port (432) and the third port (433).

Abstract: A vehicle air conditioning apparatus 1 installed between a part under a seat and a floor of a vehicle includes a blower unit 2 including a blower, and a heat exchanger unit 3 including a heat exchanger. The blower unit and the heat exchanger unit are connected with one another to form an air flow path along the floor of the vehicle. The blower unit is detachably connected with the heat exchanger unit in a direction crossing the air flow path and being along the floor of the vehicle.