Optimized thermal design of new reflex LED headlamp

被引：15

作者：

Hu, Shuhong ^{[1
]}

Yu, Guiying ^{[1
]}

Cen, Yichao ^{[1
]}

机构：

[1] China Jiliang Univ, Coll Metrol & Measurement Engn, Hangzhou 310018, Peoples R China

来源：

APPLIED OPTICS | 2012年 / 51卷 / 22期

关键词：

Headlights - Light emitting diodes;

D O I：

10.1364/AO.51.005563

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

This paper focuses on the heat dissipation efficiency issues in LED headlamps. The cooling structure is designed and built in Ansys-icepak software based on computational fluid dynamics. During optimized simulation of a single model, geometric parameters, maximum temperature, and thermal resistance are taken as variables, constraint, and objective, respectively. In the case of 85 degrees C, the optimized model has mass of 0.28 kg, maximum temperature rise of 12.52 degrees C, and thermal resistance of 1.03 degrees C/W. During the design of the headlamp, air inlet and outlet are arranged, respectively, taking advantage of airflow generated from the moving auto. The maximum temperature rise is 6.5 degrees C lower than that in closed case at the speed of 2 m/s. (C) 2012 Optical Society of America

引用

页码：5563 / 5566

页数：4

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