Patent ID: 11077736

Abstract:
A vehicular air conditioner is provided which is capable of heating a vehicle interior with heat of a battery and also preventing deterioration in heating performance due to a decrease in circulating refrigerant. The vehicular air conditioner includes a battery temperature adjustment device 61 to circulate a heat medium to thereby adjust the temperature of a battery 55 mounted on a vehicle. The battery temperature adjustment device 61 has a refrigerant-heat medium heat exchanger 64 to exchange heat between the refrigerant and the heat medium, and includes a check valve 30 to return the refrigerant flowing out from the refrigerant-heat medium heat exchanger 64 to a suction side of the compressor 2 and to obstruct the flow of the refrigerant flowing out from the refrigerant-heat medium heat exchanger 64 and directed toward an outdoor heat exchanger 7 and a heat absorber 9.