| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a cooling system for a heating source, which can reduce power consumption of a compressor, while securing the cooling and heating abilities and the ability for cooling the heating source. <P>SOLUTION: The cooling system 1 for cooling an HV device 31 includes: a compressor 12; a heat exchanger 14; an expansion valve 16; and a heat exchanger 18. The cooling system 1 also includes a four-way valve 13 which switches a flow of a refrigerant during air-conditioning operation. The cooling system 1 further includes: a first passage and a second passage as paths of the refrigerant, which are connected in parallel between the heat exchanger 14 and the expansion valve 16; a cooling part 30 provided in the second passage to cool the HV device 31; a refrigerant passage 41; and refrigerant passages 43 and 45. The refrigerant passage 41 provides fluid communication between a refrigerant path between the compressor 12 and the heat exchanger 14, and the second passage on a side closer to the heat exchanger 14 than the cooling part 30. The refrigerant passages 43 and 45 provide fluid communication between a refrigerant path between the expansion valve 16 and the heat exchanger 18, and the second passage on a side closer to the expansion valve 16 than the cooling part 30. <P>COPYRIGHT: (C)2013,JPO&INPIT |
