| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a heat pump device having a function of heating a fuel cell by utilizing the refrigerant heat when purging water remaining in the fuel cell, and having a fuel cell heating function capable of preventing degradation of the heating capacity of the fuel cell when the outside air temperature is low. <P>SOLUTION: The heat pump device performs the purging operation to reduce water remaining in a cell when a fuel cell 12 is stopped, and when a fuel cell temperature sensor 9r detects that the temperature is not higher than the predetermined temperature T1 during the purging operation, a compressor 17 disposed in a refrigerant circulation path 37 is driven, the heat of the high-temperature and high-pressure refrigerant by the compressor 17 is radiated to cooling water in a water-changing heat exchanger 24. Then, the refrigerant is turned to be low-temperature and low-pressure by a decompressor 23, and the heat is absorbed from air flowing into a room by an indoor heat exchanger 19. An indoor/outdoor air changing door 28 introduces air in the room into a case 26, and the heat of the air in the room is absorbed to the indoor heat exchanger 19. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
