| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a vehicle air conditioner capable of achieving both dehumidifying and heating by suppressing power consumption. <P>SOLUTION: The vehicle air conditioner includes a heat exchanger for exchanging heat between a refrigerant flowing through an air conditioning cooling flow passage and hot fluid flowing through a heater hot fluid flowing passage and an electric heater located on the downstream side of the heat exchanger of the heater hot fluid flow passage to warm the hot fluid heat-exchanged by the heat exchanger. Further, an electric cooling flow passage for cooling the heat of an electric device mounted on the vehicle through an outdoor heat exchanger. The electric cooling flow passage and the heater hot fluid flow passage are connected so as to be parallel through a communication passage. In a connection part of the communication passage and the hot fluid flow passage, a flow passage selector valve is located to supply the hot fluid flowing through the heater hot fluid flow passage into the electric cooling flow passage when the temperature of the heater hot fluid passage is higher than the prescribed temperature. <P>COPYRIGHT: (C)2012,JPO&INPIT |
