Patent ID: 9707824
Date: 2017-07-18
CPC Classifications: B60H

Claim:
1. A vehicle heat pump air-conditioning system comprising: a cooling refrigeration cycle in which an electric compressor, an exterior condenser, a receiver, a first expansion valve, and an interior evaporator provided in a HVAC unit are connected to one another in this order; an interior condenser which is disposed at the downstream side of the interior evaporator in the HVAC unit and in which a refrigerant inlet side of the interior condenser is connected to a discharge circuit of the electric compressor via a switching valve and a refrigerant outlet side of the interior condenser is connected to the receiver; and an exterior evaporator in which a refrigerant inlet side of the exterior evaporator is connected to an outlet side of the receiver via a second expansion valve and a refrigerant outlet side of the exterior evaporator is connected to a suction circuit of the electric compressor, wherein the electric compressor, the switching valve, the interior condenser, the receiver, the second expansion valve, and the exterior evaporator are connected to one another in this order, and a heating heat pump cycle is configured, and wherein the exterior condenser, the exterior evaporator, and a radiator mounted on a vehicle side are provided in a ventilation path of a single fan, and the exterior evaporator is disposed at the rear stream sides of the exterior condenser and the radiator in the ventilation path.