| 摘要 |
A cooling water flow path 41 connected with a radiator 40 includes a fuel cell flow path 41a that makes circulation of cooling water from the radiator 40 via a fuel cell stack 20 to the radiator 40, and an exothermic equipment flow path 41 b that is placed in parallel to the fuel cell flow path 41 a and makes circulation of cooling water from the radiator 40 via exothermic equipment 13 (including an inverter 32 of a power control unit (PCU) 30, an air supplier 26, a heat exchanger 27, and a driving motor 35 ) to the radiator 40. The multiple pieces of exothermic equipment 13 are arranged in series along the exothermic equipment flow path 41 b in the flow direction of cooling water in an ascending order of heat discharge quantity. The inverter 32, the heat exchanger 27, and the driving motor 35 are respectively equipped with a dual cooling mechanism, an air cooling mechanism, and an oil cooling mechanism. The arrangement of the invention ensures stable operations of the respective pieces of exothermic equipment 13 even when the cooling water used for cooling down the exothermic equipment 13 has a higher temperature. |
