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: 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: A vehicle air conditioning device executes an air conditioning operation for heating inside of a cabin by causing a refrigerant discharged from a compressor 2 to dissipate heat in a radiator 4, decompressing the refrigerant, and then causing the refrigerant to absorb heat in an outdoor heat exchanger 7, and includes an equipment temperature adjusting device 61 capable of adjusting, using the refrigerant, the temperature of a battery 55 and the temperature of a traveling motor 65, which is a temperature-adjusted object other than the battery, the battery 55 and the traveling motor 65 being mounted on a vehicle. An air conditioning controller has a heating/waste heat recovery mode for cooling the traveling motor 65 without cooling the battery with the refrigerant by controlling the equipment temperature adjusting device 61 in the air conditioning operation for heating the inside of the cabin.

Abstract: To provide a vehicle air conditioning apparatus capable of smoothly performing temperature adjustment of a battery and a temperature-adjusted object other than the battery that are mounted on a vehicle. A vehicle air conditioning apparatus includes an equipment temperature adjusting device 61 for circulating a heating medium to a battery 55 and a traveling motor 65 to adjust the temperature of the battery 55 and the temperature of the traveling motor 65. The equipment temperature adjusting device includes circulating pumps 62, 63, and 87 for circulating the heating medium to the battery and the temperature-adjusted object, a refrigerant-heating medium heat exchanger 64 for exchanging heat between a refrigerant and the heating medium, an air-heating medium heat exchanger 67 for exchanging heat between outdoor air and the heating medium, and three-way valves 81 to 83 for controlling circulation of the heating medium to the battery and the traveling motor.

Abstract: Provided is a vehicle air conditioning device that can save the space for installing constituent apparatuses of a vehicle by using a heater for multiple purposes and reduce the manufacturing cost. Heating assisting operation for heating air to be supplied into a cabin is performed in a manner that a heat medium heated by a heat medium heater 32 in a heat medium circuit 30 flows to a heat medium radiator 16 without flowing on a battery B side while heating operation is performed.

Abstract: A vehicle air conditioner having a compressor to compress a refrigerant, an air flow passage to supply air to the vehicle; a radiator; an outdoor heat exchanger; a battery temperature adjustment device for letting a heat medium circulate through a battery mounted in the vehicle, thereby adjusting a temperature of the battery; and a control device. The battery temperature adjustment device has a refrigerant-heat medium heat exchanger for performing exchange of heat between the refrigerant and the heat medium. The control device is configured to execute: a radiator and outdoor heat exchanger heating/battery cooling mode, and an obstruct inflow heating/battery cooling mode.

Abstract: A vehicle air-conditioning device includes a compressor 2, a radiator 4, an outdoor heat exchanger 7, a first heat medium circulating device 61 to let a first heat medium circulate in a heat medium heating heater 66, and a second heat medium circulating device 62 to let a second heat medium circulate in a battery 55. The first heat medium circulating device has a first heat medium heat exchanging unit 65A which exchanges heat between a refrigerant and the first heat medium. The second heat medium circulating device has a second heat medium heat exchanging unit 65B which exchanges heat between the first heat medium and the second heat medium.

Abstract: A vehicle air conditioning apparatus includes: a refrigerant circuit that adjusts a temperature or a humidity of air in a vehicle compartment, including a compressor, indoor heat exchangers, an outdoor heat exchanger, and expansion valves; a first heat medium circuit that allows a first heat medium absorbing heat released from a first heat releasing body to flow therethrough; a second heat medium circuit that allows a second heat medium absorbing heat released from a second heat releasing body to flow therethrough; a first heat medium heat releasing unit that performs a heat exchange between the refrigerant and the first heat medium to release the heat from the first heat medium to the refrigerant; and a second heat medium heat releasing unit that performs a heat exchange between the first heat medium and the second heat medium to release the heat from the second heat medium to the first heat medium.

Abstract: A vehicle air-conditioning apparatus is provided which is capable of expanding an effective range of a dehumidifying and heating mode to achieve comfortable vehicle interior air conditioning. A control device (controller) executes a dehumidifying and heating mode to let a refrigerant discharged from a compressor 2 radiate heat in a radiator 4, let a part of the refrigerant flow from a bypass circuit (refrigerant pipe 13F) to an indoor expansion valve 8, and let the residual refrigerant flow through an outdoor expansion valve 6. In the dehumidifying and heating mode, the control device has a state of controlling the operation of the compressor 2, based on a heat absorber temperature Te and executes a radiator temperature priority mode which enlarges a capability of the compressor when heat radiation in the radiator is insufficient.

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: A vehicular air conditioning device is provided which is capable of cooling a heat medium of a battery temperature adjustment device by a refrigerant in a refrigerant circuit to improve operation efficiency when a battery is to be cooled. The vehicular air conditioning device includes a battery temperature adjustment device (61) for circulating a heat medium in a battery (55) to cool the same, a refrigerant-heat medium heat exchanger (64) for exchanging heat between at least part of the refrigerant flowing out from an outdoor heat exchanger (7) and the heat medium circulating in the battery temperature adjustment device, and an auxiliary expansion valve (73) for decompressing the refrigerant flowing into the refrigerant-heat medium heat exchanger. A control device controls a compressor (2) or the auxiliary expansion valve on the basis of a temperature Tw of the refrigerant of the refrigerant-heat medium heat exchanger to thereby adjust a battery temperature Tb to a target battery temperature TBO.

Abstract: There is provided a vehicular air-conditioning device capable of reducing frost formation on an outdoor heat exchanger during vehicle running after disconnection from an external power source and extending a period during which a heating operation can be performed with high efficiency. A battery 55 is capable of being charged from an external power source. A controller 32 causes an outdoor heat exchanger 7 to absorb heat to thereby execute a heating operation to heat a vehicle interior. The controller 32 is capable of executing air preconditioning to preliminarily heat the vehicle interior before boarding. When the air preconditioning is executed in a state in which the battery 55 is connected to the external power source, the controller 32 heats the vehicle interior without using the outdoor heat exchanger 7, and changes a target temperature for heating control in the air preconditioning in the direction of increasing from a reference value of the target temperature.

Abstract: A temperature adjustment device for vehicle-mounted heat-generating equipment is provided which, without cooling units respectively corresponding to low heat-generating equipment and high heat-generating equipment mounted on a vehicle, enables temperature adjustment of each heat-generating equipment to be executed without hindrance. The temperature adjustment device adjusts the temperatures of a battery 55 and a motor 65 for running both mounted on the vehicle, and includes a heat medium circulation circuit 60 for circulating a heat medium to the battery 55 and the motor 65 for running, and a refrigerant-heat medium heat exchanger 64 for cooling the heat medium circulated through the heat medium circulation circuit 60. The heat medium cooled in the refrigerant-heat medium heat exchanger 64 flows through the battery 55 and then flows to the motor 65 for running.

Abstract: There is provided a vehicle air-conditioning device capable of smoothly achieving pre-air-conditioning for preliminarily heating a vehicle interior without forming frost on an outdoor heat exchanger or while preventing frost formation thereon as much as possible. When the temperature of a battery 55 or a motor 65 for running is higher than or equal to a predetermined specified value upon executing the pre-air-conditioning for preliminarily heating the vehicle interior before boarding, a controller 32 operates a compressor 2 to let a refrigerant discharged from the compressor radiate heat in a radiator 4, decompress the refrigerant from which the heat is radiated, and then let the refrigerant absorb heat in a waste heat recovering heat exchanger 64 without using an outdoor heat exchanger 7.

Abstract: A vehicle air conditioner having a compressor to compress a refrigerant, an air flow passage to supply air to the vehicle; a radiator; an outdoor heat exchanger; a battery temperature adjustment device for letting a heat medium circulate through a battery mounted in the vehicle, thereby adjusting a temperature of the battery; and a control device. The battery temperature adjustment device has a refrigerant-heat medium heat exchanger for performing exchange of heat between the refrigerant and the heat medium. The control device is configured to execute: a radiator and outdoor heat exchanger heating/battery cooling mode, and an obstruct inflow heating/battery cooling mode.

Abstract: An air conditioner includes a battery temperature adjustment device which adjusts the temperature of a battery and has a refrigerant-heat medium heat exchanger to exchange heat between a refrigerant and a heat medium. A controller executes a first heating/battery cooling mode to let the refrigerant discharged from a compressor radiate heat in a radiator, decompress the refrigerant, and then let the refrigerant absorb heat in an outdoor heat exchanger and the refrigerant-heat medium heat exchanger, and a second heating/battery cooling mode to let the refrigerant discharged from the compressor radiate heat in the radiator and the outdoor heat exchanger, decompress the refrigerant, and then let the refrigerant absorb heat in the refrigerant-heat medium heat exchanger.

Abstract: There is disclosed a vehicle air conditioning device which inhibits generation of noise in a solenoid valve 30 disposed on an inlet side of a radiator 4 and improves durability of the solenoid valve. A second operation mode is executed to shut off an outdoor expansion valve 6, close the solenoid valve 30, open a solenoid valve 40 and thereby send a refrigerant discharged from a compressor 2 through a bypass pipe 35 to an outdoor heat exchanger 7. When a first operation mode to open the solenoid valve 30 and close the solenoid valve 40 and thereby send the refrigerant to the radiator 4 is shifted to the second operation mode, a controller opens the solenoid valve 30 at a timing to stop the compressor 2.

Abstract: Provided is a vehicle air conditioning device that can save the space for installing constituent apparatuses of a vehicle by using a heater for multiple purposes and reduce the manufacturing cost. Heating assisting operation for heating air to be supplied into a cabin is performed in a manner that a heat medium heated by a heat medium heater 32 in a heat medium circuit 30 flows to a heat medium radiator 16 without flowing on a battery B side while heating operation is performed.

Abstract: An object of the present invention is to provide a vehicle air conditioning device that can solve the decrease of a circulation refrigerant quantity while effectively using the heat of a temperature control object in heating a cabin. The heating operation of a vehicle air conditioning device (1) includes an external air heat absorption heating mode for heating a cabin in a manner that a refrigerant discharged from a compressor (2) radiates heat in a radiator (4), the refrigerant is decompressed, and then the refrigerant absorbs heat in an outdoor heat exchanger (7), and a temperature control object heat absorption heating mode for heating the cabin in a manner that the refrigerant absorbs heat in a refrigerant-heat medium heat exchanger (64), and these modes are performed while being switched. The heating operation is started in the external air heat absorption heating mode.

Abstract: A vehicle air conditioning device that can increase heat absorption from external air in an outdoor heat exchanger while an influence on travel distance is suppressed as much as possible is provided. The vehicle air conditioning device includes a compressor (2), a radiator (4), an outdoor heat exchanger (7), 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.