90W汽车LED前照灯散热结构设计研究  

Research on Thermal Structure Design of 90W LED Car Headlamps

作　　者：刘晨阳[1] 尹默 孙贺然 李忠 

机构地区：[1]西安交通大学电力设备电气绝缘国家重点实验室,陕西西安710049 [2]南阳防爆集团股份有限公司,河南南阳473011 [3]中冶北方(大连)工程技术有限公司,辽宁大连116600 [4]中国兵器工业第202研究所,陕西咸阳712099

出　　处：《照明工程学报》2015年第2期137-141,共5页China Illuminating Engineering Journal

摘　　要：针对目前大功率LED前照灯散热困难等问题,运用Pro/E设计了一款风冷散热形式的LED前照灯模型,并运用ANSYS仿真分析得出其在不同对流状态条件下的温度场分布。同时搭建实验平台进行LED前照灯温度试验测试,试验研究发现LED结温始终能控制在80℃以下,此散热模型的LED前照灯能很好地满足散热要求,有效的解决了LED前照灯的散热问题。In the view of heat dissipation problems of high power LED lamp , a cooling form of LED car headlamps was designed.Temperature field distribution in different convection conditions is obtained by ANSYS simulation analysis.At the same time, the experiment platform is set up for temperature test of LED car headlamps, the LED junction temperature can be controlled under 80 ℃ in the experiment.It shows that the radiation model of LED headlamp can meet the cooling requirements well .It can solve the problem of heat dissipation in LED car headlamps .

关 键 词：白光LED 汽车前照灯 散热 

分 类 号：U463.651[机械工程—车辆工程]