Structure Optimization of Heat Sink for High Power LED Street Lamp
Light emitting diode (LED) is now widely used in many fields including traffic lights, vehicle backlights and liquid crystal display (LCD) displays because of their long life, good illumination efficiency and low energy consumption. For the high power LED street lamp, a low operating temperature is essential for LED chips. However, its waste and meaningless to increase the size of heat sink for high power LED street lamp immoderately. In this paper, structure optimization of heat sink is studied on the condition that the heat sink is sufficient for cooling demand of 196W LED street lamp. 1/7, 2/7 and 3/7 length diminution of the heat sink are studied respectively. Results show that temperature of plate surface is increased 16℃ with 3/7 bulk and weight reducing. And cross-sectional shape optimization of fin is also studied. The result show that the bulk and weight of fins are reduced over §0％ with only 0.42 ℃ temperature rise. The results of this work provide useful guidelines for thermal management of the heat sink without affecting the cooling demand of high power LED street lamp.
high power LED street lamp heat sink structure optimization thermal management
Kaikai Ding Shiwei Feng Chunsheng Guo Guangchen Zhang Chen Gao
College of Electronic Information and Control Engineering Beijing University of Technology Beijing, China
国际会议
2011 International Conference on Electronics and Optoelectronics(2011电子学与光电子学国际会议 ICEOE 2011)
大连
英文
75-78
2011-07-29（万方平台首次上网日期，不代表论文的发表时间）