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首页> 外文会议>American Society of Mechanical Engineers(ASME) Summer Heat Transfer Conference(HT2005); 20050717-22; San Francisco,CA(UA) >JET IMPINGEMENT COOLING OF AN INVERTER MODULE IN THE HARSH ENVIRONMENT OF A HYBRID VEHICLE
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JET IMPINGEMENT COOLING OF AN INVERTER MODULE IN THE HARSH ENVIRONMENT OF A HYBRID VEHICLE

机译：混合动力车辆严酷环境中逆变器模块的射流冲击冷却

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摘要

This paper presents a study of liquid jet impingement cooling technique and its system level implementation for thermal management of an inverter module in a hybrid vehicle. Clusters of anti-freeze liquid jet array impinge on the base plate of a 450V (DC Link voltage)/400A (RMS current) module, made by Semikron, Inc. In the harsh environment of an automobile, the ambient temperature of the coolant is 105℃, and the maximum allowable flow rate and pressure drop are 2.5GPM and 1.6bar respectively. The impingement cooling technique demonstrates 1623 Watts of heat dissipation for 20℃ device temperature rise above ambient. This translates to a chip level dissipation power density of 56W/cm~2, approximately 1.8X improvement over forced convection liquid cooling in the state-of-the-art pin fin cold plate. At the highest power, the less than 3℃ temperature variation among the twelve IGBT measurements indicates a high degree of reliability in module operation. The efficient phase change heat transfer mechanism sets in at local base plate temperatures between 109-111℃, which accounts for more than 10% of the total heat dissipation at 1600W level.
机译：本文介绍了一种用于混合动力汽车中逆变器模块热管理的液体射流冲击冷却技术及其系统级实现。防冻液射流阵列的簇撞击在由Semikron，Inc.制造的450V（直流母线电压）/ 400A（RMS电流）模块的底板上。在汽车的恶劣环境中，冷却剂的环境温度为105℃，最大允许流量和压降分别为2.5GPM和1.6bar。冲击冷却技术表明，当器件温度高于环境温度20℃时，散热量为1623瓦。这转化为芯片级的耗散功率密度为56W / cm〜2，比最先进的针翅式冷板中的强制对流液体冷却大约提高了1.8倍。在最高功率下，十二个IGBT测量值之间的温度变化小于3℃，表明模块操作具有高度的可靠性。有效的相变传热机制设置在局部基板温度109-111℃之间，占1600W功率下总散热量的10％以上。

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