界面热阻对IGBT散热影响的试验研究  

Experimental research on the influence of interface thermal resistance on IGBT heat dissipation

作　　者：恽强龙 张广泰 姜波 陈宇曦 Yun Qianglong;Zhang Guangtai;Jiang Bo;Chen Yuxi(Changzhou Ruibo Electric Power Electronics Co.,Ltd.,Jiangsu Changzhou,213025,China;Jiangsu Engineering Research Center for Flexible Power Transmission and Transformation Unit,Jiangsu Changzhou,213025,China)

机构地区：[1]常州博瑞电力自动化设备有限公司,江苏常州213025 [2]江苏省柔性输变电装备工程技术研究中心,江苏常州213025

出　　处：《机械设计与制造工程》2023年第4期125-129,共5页Machine Design and Manufacturing Engineering

基　　金：江苏省科技成果转化专项资金项目(BA2017108)。

摘　　要：基于某型号绝缘栅双极晶体管(IGBT)及其散热器,采用理论与试验相结合的方式,系统分析了IGBT运行损耗产生机理及散热设计基本原理,综合研究了界面状态对IGBT整体散热的影响。结果表明,安装界面是否涂覆导热硅脂,散热器的热阻差值可达25%以上;安装界面涂覆材料的物理特性及尺寸存在优选范围,对其散热存在较大的影响。Based on a certain type of IGBT and heatsink,it uses a combination of theory and experiment to analyze the mechanism of the IGBT operation loss and the basic principles of heat dissipation design.The influence between the interface state and the heat dissipation of the IGBT is comprehensively studied.The results show that:Whether the installation interface is coated with thermal grease,the thermal resistance of the heatsink difference can reach more than 25%.The physical properties and dimensions of the installation interface coating material have a preferred range.

关 键 词：绝缘栅双极晶体管 界面热阻 导热硅脂 试验分析 

分 类 号：TK122[动力工程及工程热物理—工程热物理]