某航天电子设备金属3D打印相变机壳设计  

Design of Metal 3D Printing Shell with PCM for a Certain Aerospace Electronic Equipment

作　　者：毛丽娜[1] 胡文超[1] 董国攀 MAO Lina;HU Wenchao;DONG Guopan(ECU Electronics Industrial Co.,Ltd.,Hefei 230088,China)

机构地区：[1]合肥华耀电子工业有限公司,安徽合肥230088

出　　处：《电子机械工程》2021年第2期26-28,36,共4页Electro-Mechanical Engineering

摘　　要：相变材料在相变过程中可以储存和释放大量热量,且相变过程近似等温。利用相变材料的这一特性可以实现对物体的温度控制,尤其适用于外部环境恶劣、热耗变化大、对温度稳定性要求较高的电子设备。某航天电子设备具有短时工作、功率密度高的特点,利用合适温度的相变材料来增加系统热沉是解决其散热问题的一种重要手段。文中基于相变控温技术完成了某航天电子设备相变机壳的热设计,同时利用金属3D打印技术实现了相变装置与复杂结构机壳的共形设计。研究结果表明,金属3D打印相变机壳在温度指标、重量指标、加工实现和研制周期方面具有明显的优势。The phase change material(PCM)can store and release a large amount of heat during phase transition process and this process is approximately isothermal.Accordingly,PCM can be used for temperature control.It is especially suitable for the electronic equipment which works in harsh environment or has large heat consumption or high requirement for thermoregulation.A certain aerospace electronic equipment has the characteristics of short-time operation and high power density.Using PCM with suitable temperature to increase heat-sink of this system is an important means to solve its heat dissipation problems.In this paper thermal design of the phase transition shell of the aerospace electronic equipment is completed by PCM temperature control technology and conformal design of the shell and complex structure equipment is realized by metal 3D printing technology.The research results show that the metal 3D printing shell has obvious advantages in terms of temperature index,weight index,processing realization and development cycle.

关 键 词：航天电子设备 相变材料 金属3D打印 

分 类 号：V243[航空宇航科学与技术—飞行器设计]