| 摘要 |
<p>PURPOSE:To reduce the fault ratio of a refrigerating cycle cooling an electronic device. CONSTITUTION:This device is provided with two units of refrigerating cycles, and the coolers 16, 17 of each of the refrigerating cycles are arranged within an insulation box 1. At the time of starting cooling, the both refrigerating cycles are operated, and air cooled by the both coolers 16, 17 is circulated within a container 2 by the blowing work of a circulating fan device 18, and the electronic parts of a print wiring board 13 are cooled. When the inside of the container 2 is cooled up to a prescribed temperature, the two units of refrigerating cycles are alternately operated alternately and the cooling of the electronic parts is performed.</p> |
