| 摘要 |
PROBLEM TO BE SOLVED: To enhance amenity by further heightening cooling performance when a vehicle is parking by utilizing an existing air conditioner. SOLUTION: An auxiliary power supply 40 having less power than a main power supply 30, a second compressor 12 to compress refrigerant by the auxiliary power supply 40, a second condenser 11 to cool/condense the refrigerant by the auxiliary power supply 40, connecting passages 13, 15 to connect the second compressor 12 and the second condenser 11 to the evaporator 2a through switching valves 16, 17, a driving control means to drive the second compressor 12 and the second condenser 11 by the auxiliary power supply 40 when an engine is stopped, a switching valve control means to switch the switching valves 16, 17 so that the refrigerant can be circulated among the second compressor 12, the second condenser 11 and the evaporator 2a when the engine is stopped are provided. Accordingly, when the engine is stopped as in the case when the vehicle is parking, a second refrigerating cycle different from a normal refrigerating cycle is formed among the second compressor 12, the second condenser 11 and the evaporator 2a, and cooling with high cooling effect can be carried out by utilizing an ordinary air-conditioner. COPYRIGHT: (C)2003,JPO
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