VEHICLE AIR CONDITIONING DEVICE

摘要

There is disclosed an air conditioning device of a so-called heat pump system which efficiently and comfortably heats a vehicle interior. In a vehicle air conditioning device 1, a controller executes a heating mode in which a refrigerant discharged from a compressor 2 radiates heat in a radiator 4 and the refrigerant by which heat has been radiated is decompressed and then absorbs heat in an outdoor heat exchanger 7. The vehicle air conditioning device includes a heating medium circulating circuit 23 to heat air to be supplied from an air flow passage 3 into the vehicle interior, and the controller executes the heating by a heating medium-air heat exchanger 40 of the heating medium circulating circuit 23, when a heating capability by the radiator 4 runs short.

主权项

1. A vehicle air conditioning device comprising:
a compressor which compresses a refrigerant; an air flow passage through which air to be supplied into a vehicle interior flows; a radiator which lets the refrigerant radiate heat to heat the air to be supplied from the air flow passage into the vehicle interior; a heat absorber which lets the refrigerant absorb heat to cool the air to be supplied from the air flow passage into the vehicle interior; an outdoor heat exchanger disposed outside the vehicle interior to let the refrigerant radiate or absorb heat; and control means, the control means being configured to execute at least a heating mode in which the refrigerant discharged from the compressor radiates heat in the radiator and the refrigerant by which heat has been radiated is decompressed and then absorbs heat in the outdoor heat exchanger, the vehicle air conditioning device further comprising: auxiliary heating means for heating the air to be supplied from the air flow passage into the vehicle interior, wherein the control means executes the heating by the auxiliary heating means, when a heating capability by the radiator runs short.