| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a vehicle air conditioning device without causing frosting in a heat sink, even in an environment where the temperature outside of a cabin is the low temperature. <P>SOLUTION: In dehumidifying heating operation, when the temperature Tam outside of the cabin is a predetermined temperature T1 or lower, or when the temperature Thex of a refrigerant flowing out of an outdoor heat exchanger 22 is a predetermined temperature T2 or lower and when the detecting temperature Te of a cooling air temperature sensor 44 becomes the temperature Tet-β or lower, a third solenoid valve 25c is closed. Thus, in the dehumidifying heating operation, when there is a risk of causing the frosting in the heat sink 14, a flow of the refrigerant to the heat sink 14 is stopped, and thereby the frosting in the heat sink 14 can be prevented. <P>COPYRIGHT: (C)2012,JPO&INPIT |
