光电子技术, 2014, 34 (1): 63, 网络出版: 2014-04-09  

功率型LED灯散热器优化设计研究

An Optimization Design for High-power LED Lamp Radiator
作者单位
广东工业大学 自动化学院, 广州 510006
摘要
针对大功率型LED路灯散热器稳态工作下温度中心集聚的热特性, 利用有限元方法构建其3D模型, 并在三维模型基础上得到散热器的稳态温度场分布云图;采用正交试验设计法探讨散热器中心翅片的厚度、底板的厚度、不同疏密程度结构对散热器的水平和垂直方向热传导的影响;最后根据实验结果得到能有效对LED路灯散热器温度进行热控制的优化参数和结构, 该方案有效降低了散热器的最高温度并提高了散热器的垂直热传导能力;通过对实物进行实验测量得到温度数据再与有限元分析的温度场分布图比较, 证明了设计仿真的准确性和可靠性。
Abstract
According to the thermal characteristics of the great power LED lamp radiator, the finite element method is used to construct the 3D model, and thus to obtain the steady-state temperature field on the basis of 3D model. Adopting the Orthogonal experimental design method, we study the influence upon the radiator's horizontal and vertical heat conduction from these three factors,the thickness of the radiator center fin, the thickness of the base plate, and the structure of different density. At last, with the experimental results, we obtained optimal parameters and structure that can effectively control the temperature of LED street lamp radiator. The scheme can not only reduce the highest temperature of the radiator but also increase the vertical heat conduction capability of the radiator. In comparison with the temperature data from the experiment and the temperature field distribution from finite element method, it is proved that the accuracy and reliability of simulated design.

张淼, 华楚霞, 林泽坤. 功率型LED灯散热器优化设计研究[J]. 光电子技术, 2014, 34(1): 63. ZHANG Miao, HUA Chuxia, LIN Zekun. An Optimization Design for High-power LED Lamp Radiator[J]. Optoelectronic Technology, 2014, 34(1): 63.

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