空间光学遥感器大功率控制电箱的热设计

根据空间应用电子设备的热控要求，对空间光学遥感器的控制电箱进行了热控设计。首先，总结了空间电子设备的热设计原则。针对空间光学遥感器控制电箱介绍了相应的热设计流程，对典型的大功率器件进行了温差推算，并说明了电箱的各电路板和大功率元器件的热设计方案。最后，通过热分析和热试验手段对热控电箱的热控方案进行了验证。试验结果表明：控制电箱的整机稳态工况热平衡温度小于30℃，各元器件的最高壳温在54.2℃以内。结果验证了该设计方案完全满足设计指标要求。

Thermal design of high power electronic control cabinet of space optical remote sensor

A high power electronic control cabinet for space optical remote sensors was designed according to the design demands of space electronic equipment .Firstly, the thermal design principle was summarized for space electronic equipment .Then, the thermal design process of the electronic cabinet was generalized , the temperature difference of typical high power electronic components was calculated and the thermal design schemes of printed circuit boards and high power electronic components were introduced .Finally, the design schemes were validated by the means of thermal analysis and thermal test .The test results indicate that the thermal balance temperature of the electronic control cabinet is less than 30 ℃ in a stable working state and the shell temperatures of electronic components are under 54.2℃, which proves that the design schemes fully meet the design requirements of thermal control .