基于VPX架构的高热耗星载数据处理机结构设计  

Structure design of high heat consumption spaceborne data processor based on VPX architecture

作　　者：王君峰 王升 代锋[1] 薛婧婧 张缓缓 付永辉[1] WANG Junfeng;WANG Sheng;DAI Feng;XUE Jingjing;ZHANG Huanhuan;FU Yonghui(China Academy of Space Technology(Xi’an),Xi’an 710000,China)

机构地区：[1]中国空间技术研究院西安分院,西安710000

出　　处：《空间电子技术》2021年第3期43-48,共6页Space Electronic Technology

基　　金：国家自然基金(编号:61801377)。

摘　　要：通用化、模块化、互换性越来越成为星载数据处理电子设备结构设计的发展方向,VPX架构是一种较适合的形式。针对VPX架构高热耗星载数据处理机的散热难题,提出了优化结构布局、增加散热路径、提高散热效率等思路。采用了大热耗器件布局机箱底部,机壳设计散热凸台,机箱及子板结构件嵌入热管等方法,成功设计出可满足子板最大热耗41.5 W,整机最大热耗312 W散热需求的星载数据处理机结构。有限元分析结果表明,元器件结温最高为79.2℃,整机基频238 Hz,各指标满足设计需求。该设计方法对VPX架构星载高热耗电子设备的结构设计具有借鉴意义。Universalization,modularization and interchangeability more and more become the development direction of structure design of spaceborne data processing electronic equipment,VPX Architecture is a more suitable form.This paper aims at the heat dissipation problem of high heat consuming spaceborne data processor based on VPX architecture,The ideas of optimizing the structure layout,increasing the heat dissipation path and improving the heat dissipation sufficiency are put forward.Some methods are adopted,such as layout of large heat consuming devices at the bottom of the chassis,design of heat dissipation convex platform for the chassis and inserting heat pipes into the sub-boards of the chassis.Successfully designed the structure of spaceborne data processor with the maximum heat consumption of Sub module is 41.5W and 312W of the whole device.The results of finite element analysis show that the highest junction temperature of components is 79.2℃,and the basic frequency of the whole machine is 238 Hz.All the indexes meet the design requirements.This design method can be used for reference in the structure design of spaceborne high heat consumption electronic equipment based on VPX architecture.

关 键 词：星载 数据处理机 VPX 结构设计 

分 类 号：TN927[电子电信—通信与信息系统]