This paper presents the thermal design of the electronics unit of the instrument Polarimetric Helioseismic Imager, onboard the European Space Agency mission Solar Orbiter. The thermal design procedure, along with the problems encountered during this design phase, and the solutions found to fix them are described, proving in this way the thermal feasibility and robustness of the unit. Its final thermal behaviour, obtained from thermal analyses correlated with data from thermal tests performed in a vacuum environment, is presented.

中文翻译：

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太阳轨道器 PHI 电子单元的热分析

本文介绍了欧洲航天局太阳轨道飞行器上的偏振日震成像仪的电子单元的热设计。描述了热设计程序，以及在此设计阶段遇到的问题，以及解决这些问题的解决方案，以这种方式证明了装置的热可行性和稳健性。其最终的热行为是从与真空环境中执行的热测试数据相关的热分析中获得的。