| 摘要 |
PROBLEM TO BE SOLVED: To provide a cooling device for electronic apparatus such that a Peltier element and a fan for heat dissipation are suitably driven and electric power is sufficiently saved. SOLUTION: In the cooling device for electronic apparatus including the Peltier element 2 thermally coupled to a heat generating component mounted on a heat generating substrate 2, a heat sink 3 thermally coupled to the Peltier element 2, and a FAN 4 blowing air to the heat sink 4; a circuit board of a Peltier element driving circuit 200 thermally coupled to the heat generating component on the heat generating substrate 2 is provided with a first temperature sensor, and a circuit board of a FAN driving circuit 300 thermally coupled to the heat sink 3 is provided with a second temperature sensor; and a driving current for the Peltier element 2 is controlled according to a detection signal of the first temperature sensor, and a driving current for the FAN 4 is controlled according to a detection signal of the second temperature sensor so that necessary cooling is automatically obtained neither too much nor too little. COPYRIGHT: (C)2011,JPO&INPIT
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