Patent ID: 11958337
Assignee: SANDEN CORPORATION
Field: Transport (Mechanical engineering)
Classification: CPC B  F | IPC B  F

Claim 0:
1. A vehicle air conditioning apparatus comprising:
a compressor configured to compress a refrigerant;
a heat releasing unit configured to release heat from the refrigerant and heat air to be supplied to a vehicle compartment;
an outdoor heat exchanger provided outside the vehicle compartment and configured to absorb the heat into the refrigerant or release the heat from the refrigerant;
a heat absorbing unit configured to absorb the heat into the refrigerant and cool the air to be supplied to the vehicle compartment;
an in-vehicle device heat exchanger configured to absorb the heat into the refrigerant and cool an in-vehicle device;
an outdoor heat exchanger valve device configured to control flowing of the refrigerant into the outdoor heat exchanger;
a heat absorbing unit valve device configured to control flowing of the refrigerant into the heat absorbing unit; and, a controller configured to be able to perform at least:
a first operation mode to cool the vehicle compartment and the in-vehicle device by releasing the heat from the refrigerant discharged from the compressor in the heat releasing unit and/or the outdoor heat exchanger and absorbing the heat into the refrigerant in the heat absorbing unit and the in-vehicle device heat exchanger; and
a second operation mode to heat the vehicle compartment and cool the in-vehicle device by releasing the heat from the refrigerant discharged from the compressor in the heat releasing unit and absorbing the heat into the refrigerant in the outdoor heat exchanger and/or the in-vehicle device heat exchanger,
wherein, in a case where the first operation 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 heat absorbing unit valve device prevents the refrigerant from flowing into the heat absorbing unit, the controller moves the operation mode to the second operation mode.