| 摘要 |
PROBLEM TO BE SOLVED: To provide a semiconductor cooling device for vehicles capable of alarming by exactly detecting the abnormal temperature rise of a heat receiving block. SOLUTION: The semiconductor cooling device for vehicles is provided with a heat receiving block 2 with a semiconductor device 1 attached thereto; a heat releasing unit 3 for releasing heat received by the heat receiving block 2 to an opened unit 4; a temperature sensor 6 attached to the heat receiving block 2; an alarm device 8; and a control unit 7 determining whether the temperature of the heat receiving block 2 is raised abnormally or not based on the detection value of the temperature sensor 6, and drives the alarm device 8 upon abnormal temperature rise to cool the semiconductor device 1 by sending cooling air 5 to the heat dissipating unit 3. In this case, a temperature sensor 6' for detecting the air temperature of the releasing unit 4 is provided at a position which becomes upstream side of the cooling air 5 with respect to the heat dissipating unit 3; and the control unit 7 determines whether the temperature of heat receiving block 2 has been raised abnormally or not, by taking the detection value of temperature sensor 6' for the releasing unit into consideration of the detection value of temperature sensor 6 for the heat receiving block 2. COPYRIGHT: (C)2007,JPO&INPIT
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