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激光通信终端主体作为一种新兴的信号传输载体,工作时光学器件发热量大,对温度均匀性和稳定性要求高,给热设计带来挑战.针对载荷的工作特性和外部空间环境规律,对单机产品进行热设计:针对大功率发热元器件散热采用导热板+热管的途径进行散热,并对关键部件实现高精度控温措施.通过Thermal Desktop热分析软件对极端工况进行数值模拟,计算结果表明,激光通信终端主体温度场满足设计要求,热设计方案合理可行.
As an emerging signal transmission carrier, laser communication terminal main body has large heating value, high requirement for temperature uniformity and stability, which brings challenges to thermal design.According to the working characteristics of load and the external environment law, Thermal design of stand-alone products: Heat-dissipating heat pipes and heat pipes are adopted for cooling of high-power heat-generating components, and high-precision temperature control measures are implemented for key components. The extreme conditions are simulated by Thermal Desktop thermal analysis software. It shows that the temperature field of laser communication terminal main body meets the design requirements and the thermal design scheme is reasonable and feasible.