电动汽车用水冷散热器的设计及仿真  

Design and Simulation of Water-cooled Radiator Used in Electric Vehicle

作　　者：余军[1] 马雅青[1] 赵振龙[1] 焦明亮 

机构地区：[1]株洲南车时代电气股份有限公司,湖南株洲412001

出　　处：《大功率变流技术》2015年第3期51-53,63,共4页HIGH POWER CONVERTER TECHNOLOGY

摘　　要：IGBT是电动汽车用功率组件中的关键器件,因发热量大,其散热的好坏直接影响整车的可靠性;同时功率组件小型化、集成化的发展趋势,使得IGBT散热器的尺寸须严格控制。文章介绍了一种针肋式(PIN-FIN)水冷散热器的设计过程,并应用ICEPAK热分析软件对散热器的三维流场、温度场进行了仿真分析。结果表明,使用PIN-FIN冷板不仅能很好地满足IGBT的散热需求,而且大大减小了冷板的尺寸。IGBT is a key device for the power module used in electric vehicle. However, its thermal loss is great, and its heat dissipation performance directly affects the stability of vehicle. Moreover, the development trend of power module is miniaturization and integration, which makes the size of IGBT radiator need to strictly control. It introduced the design of a PIN-FIN water-cooled radiator, and analyzed the 3D flow field and temperature field of the radiator by ICEPAK. The simulation results show that the PIN-FIN radiator not only can satisfy the IGBT cooling demand, but also greatly reduces the size of radiator.

关 键 词：PIN-FIN 水冷散热器 热仿真 功率组件 电动汽车 

分 类 号：U464.138.2[机械工程—车辆工程]