Thermal simulation and optimization design on a high-power LED spot lamp

Gui-ying Yu; Xu-ping Zhu; Shu-hong Hu; Wen-wen Hao; Tian-tai Guo

doi:10.1007/s11801-011-0142-8

Optoelectronics Letters ›› 2011, Vol. 7 ›› Issue (2) : 117-121. DOI: 10.1007/s11801-011-0142-8

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Thermal simulation and optimization design on a high-power LED spot lamp

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Abstract

In this paper, thermal characteristics of the high-power LED spot lamp are reported. The emphasis is placed upon optimizing design of the heat sink of LED spot lamp using the optimization module and the orthogonal-experiment method. Results demonstrate that the weight of the heat sink is decreased to 46.1% of that for the initial structure, and the influence of each factor on junction temperature and weight of the heat sink is acquired by range analysis. Finally, the influence of ambient temperature and natural convection coefficient on the LED maximum temperature is analyzed. The results and the optimizing methodology are of great importance to the thermal design of LED lamps.

Keywords

Heat Sink / Heat Pipe / Convection Coefficient / Junction Temperature / Lead Lamp

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Gui-ying Yu, Xu-ping Zhu, Shu-hong Hu, Wen-wen Hao, Tian-tai Guo. Thermal simulation and optimization design on a high-power LED spot lamp. Optoelectronics Letters, 2011, 7(2): 117‒121 https://doi.org/10.1007/s11801-011-0142-8

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This work has been supported by the Natural Science Foundation of Zhejiang Province (No.Y104436), the Science and Technology Fund Projects of Zhejiang Province (No.2008C21158), and the Innovative Basement Project of Graduate Education of Zhejiang Province.