| 摘要 |
<p>PURPOSE:To retain an electric instrument box at a proper temperature and prevent the rise of an air temperature in the same box by a method wherein coolers are provided on the upper surface and the side surfaces f the same box and the flow rate of cooling medium, passed through the coolers, is controlled in accordance with a temperature detected by a temperature detecting means. CONSTITUTION:Coolers 16, conducting cooling medium therethrough, are provided on the upper surface and the side surfaces of an electric instrument box 7 to cool the same box 7 while the flow rate of the cooling medium, passed through the coolers 16, is controlled correctly and surely based on the detecting temperature of the cooling medium, which is detected by a temperature detecting means 17 provided at the discharging port of the cooler 16. Air, whose temperature is risen by heating due to the generation of heat from electric substrates 12 and the like, is cooled by the cooler 16 provided on the upper surface of the electric instrument box 7. According to this method, the electric instrument box 7 can be retained at a proper temperature and the rise of an air temperature in the same box 7 can be prevented efficiently.</p> |
