| 摘要 |
<p>An air conditioner for vehicle (10) includes: a compressor (14) that exchanges heat between a heat-exchange medium, which is output from an electronic expansion valve (27) after being decompressed and expanded, and an atmosphere inside of a vehicle cabin; a first flow passage (31) that connects an interior condenser (16) and an exterior heat-exchanger (24); a second flow passage (36) that is branched from the first flow passage (31) and connected to the electronic expansion valve (27); and a solenoid valve for dehumidification (28) that is provided in the second flow passage (36) and controlled to be opened or closed. When a dehumidifying heating operation is performed by a heat-radiating operation of the interior condenser (16) and a heat-absorbing operation of the exterior heat-exchanger (24) and the evaporator (14), a control device (18) decreases the valve opening degree of the electronic expansion valve (27) to be equal to or less than a predetermined opening degree before opening the solenoid valve for dehumidification (28) in a closed state, opens the solenoid valve for dehumidification (28) after decreasing the valve opening degree of the electronic expansion valve (27) to be equal to or less than the predetermined opening degree, and then increasing the valve opening degree of the electronic expansion valve (27) to be greater than the predetermined opening degree after opening the solenoid valve for dehumidification (28).</p> |
