VEHICLE AIR CONDITIONER

摘要

Provided is a vehicle air conditioner that is switched between a plurality of operation modes in order to actuate a heat pump device (20), said operation modes including: a first dehumidifying heating operation mode in which refrigerant that is discharged from a compressor is made to flow through a downstream-side vehicle interior heat exchanger (31), a first decompression valve (52), an upstream-side vehicle interior heat exchanger (32), and a vehicle exterior heat exchanger (33), the downstream-side vehicle interior heat exchanger (31) is used as a radiator, and the upstream-side vehicle interior heat exchanger (32) is used as a heat absorber; and a second dehumidifying heating operation mode in which refrigerant that is discharged from the compressor is made to flow through the downstream-side vehicle interior heat exchanger (31), a second decompression valve (53), a vehicle exterior heat exchanger (33), and the upstream-side vehicle interior heat exchanger (32), the downstream-side vehicle interior heat exchanger (31) is used as a radiator, and the upstream-side vehicle interior heat exchanger (32) is used as a heat absorber.