在飞机上工作的电子设备,要求在任何飞行条件下都能可靠地工作。这样,电子设备必须经受恶劣环境的考验。良好的热加固设计,是保证电子设备可靠而稳定地工作的重要手段之一。本文通过对一台机载计算机的加固来阐述其中的热加固设计。飞机电子设备的舱内环境温度为60℃(按高温试验最高点)。计算机机柜处于半密封状 Electronic equipment that operates on aircraft requires reliable operation under all flight conditions. In this way, electronic equipment must withstand the harsh environment of the test. Good thermal reinforcement design, is to ensure reliable and stable electronic equipment work one of the important means. In this paper, the reinforcement of an on-board computer is used to illustrate the thermal design. Aircraft cabin electronics ambient temperature of 60 ℃ (according to the highest point of high temperature test). Computer cabinets are semi-hermetically sealed