计算机与现代化

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 加固计算机肋片散热器的优化设计

  

  1. 华北计算技术研究所,北京100083
  • 收稿日期:2014-01-21 出版日期:2014-06-13 发布日期:2014-06-25
  • 作者简介: 张雷(1982-),男,河南邓州人,华北计算技术研究所工程师,硕士,研究方向:计算机硬件设计。

Optimizing Design of Fin Heat Sink for Ruggedized Computer

  1. North China Institute of Computing Technology, Beijing 100083, China
  • Received:2014-01-21 Online:2014-06-13 Published:2014-06-25

摘要: 当前许多已投入使用的肋片散热器价格较贵,将其安装在发热量很大的COM Express(COM-E)主板上,在55℃高温工作环境下散热效果不理想。针对商用散热器的不足,本文对COM-E主板肋片散热器进行研究,提出单个肋片热阻的计算方法,并根据COM-E主板的发热量,结合热设计相关计算和仿真,设计优化出一款性能优良的通用型肋片散热器。使用优化后的肋片散热器,加固计算机在高速工作的情况下,顺利通过了高温试验。

关键词:  , 加固机, 热阻, 热设计, 热分析

Abstract: Currently lots of fin heat sinks which has been put into use are expensive, when they are used on COM Express(COM-E for short)mainboard in high temperature circumstance of 55℃, mainboard’s heat dissipation is unsatisfactory as assumed. In order to overcome the shortage of commercial heat sinks, the paper detailed analyzed the fin heat sink of COM-E mainboard, proposed a calculate method of single finned radiator’s thermal resistance, based on COM-E mainboard’s quantity of heat, and combined with calculation and simulation on the finned radiator, optimized designs a kind of excellent fin heat sink. Using optimized fin heat sink, ruggedized computer passed the high temperature experiment successfully meanwhile it is working in high speeds.

Key words:  , ruggedized computer; thermal resistance; thermal design; thermal analysis