基于FloTHERM的密闭风冷机箱热设计及优化分析  

Thermal Design and Optimization Analysis of A Closed Air-Cooled Cabinet Based on FloTHERM

作　　者：郭小强 GUO Xiao-qiang(The 10th institute of China Electronics Technology Group Corporation,Chengdu 610000)

机构地区：[1]中国电子科技集团公司第十研究所,成都610000

出　　处：《环境技术》2023年第11期77-81,共5页Environmental Technology

摘　　要：通过对某密闭风冷机箱进行散热设计,确认了机箱的风机布局及散热翅片初步参数,运用FloTHERM热仿真软件对机箱进行热仿真分析验证,利用Command Center优化模块对冷板的翅片厚度和数量进行响应面优化设计,得到翅片厚度和数量的最优组合,使功放热源最高温降低了3.5℃。对比优化前后的数据,得到以下结论:冷板翅片厚度与翅片个数对散热效果的影响是相关联的。较厚的翅片可以增加翅片的蓄热能力,但是会使翅片密度变低,散热面积相对变小且增加了翅片重量;较薄的翅片可以带来较高的翅片密度,但是降低了翅片效率和结构刚度;只有选择最合适翅片参数才可以最优化发挥散热器性能。By conducting heat dissipation design on a sealed air-cooled chassis,the fan layout and preliminary parameters of the cooling fins of the chassis were confirmed.FloTHERM thermal simulation software was used to conduct thermal simulation analysis and verification on the chassis.The Command Center optimization module was used to optimize the thickness and number of fins on the cold plate,and the optimal combination of fin thickness and number was obtained,reducing the maximum temperature of the power amplifier heat source by 3.5℃.By comparing the data before and after optimization,the following conclusion are obtained:the thickness of cold plate fins are related to the influence of the number of fins on the heat dissipation effect.The thicker fins can increase the heat storage capacity,but it will make the density of fins lower,reduce the heat dissipation area and increase the weight of fins;Thin fins can bring higher fin density,but reduce fin efficiency and structural stiffness;Only by selecting the most suitable fin parameters can the performance the radiator be optimized.

关 键 词：FLOTHERM 风冷机箱 散热设计 优化分析 

分 类 号：TK124[动力工程及工程热物理—工程热物理]