一种穿通风冷机箱散热设计及分析

Design and Analysis of Heat Dissipation of A Ventilation Cooling Cabinet

本文介绍了一种19英寸4U的穿通风冷机箱,支持ASAAC标准6U的LRM模块插拔。整个机箱热耗高,热量集中,机箱采用热传导、强迫风冷相结合的方式散热。由于尺寸限制,背板采用开过风孔方式来保证冷风经过LRM模块表面。利用FloEFD热仿真软件在机箱设计阶段进行热仿真分析验证,合理优化机箱风道,保证风路设计流畅。最后经过高温+60℃试验验证,机箱的热设计满足热设计要求,为其他类似机箱设计提供了参考,具有较好的指导意义。

This paper introduces a 19-inch 4U ventilated and cold cabinet,which supports the insertion and removal of LRM modules in ASAAC standard 6U.The whole chassis has high heat consumption and concentrated heat,and the chassis uses a combination of heat conduction and forced air cooling to dissipate heat.Due to the size limitation,the back plate adopts the way of opening air holes to ensure that cold air passes through the surface of LRM module.Using FoEFD thermal simulation software to analyze and verify the thermal simulation in the chassis design stage,rationally optimize the chassis air duct and ensure the smooth design of the air duct.Finally,through the high temperature+60℃test,thethermal design of thechassismeetsthethermal design requirements,whichprovidesa reference for other similar chassis designs and has good guiding significance.