流体机械

2011, v.39;No.471(09) 62-65

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热管换热器用于LED冷却系统的试验研究
Experimental Study of Heat Pipe Exchanger for High Power LED Cooling System

勾昱君;刘中良;钟晓晖;
GOU Yu-jun1,2,LIU Zhong-liang1,ZHONG Xiao-hui3(1.The Education Ministry Key Laboratory of Enhanced Heat Transfer and Energy Conservation,Beijing University of Technology, Beijing 100022,China;2.Tangshan College,Tangshan 063009,China;3.Hebei United University,Tangshan,063009 China)

摘要(Abstract):

研发了一种将大功率发光二极管(LED)散热和热管传热相结合的用于大功率LED冷却的热管散热器,并对设计出的热管散热器的传热性能进行了试验研究。结果表明,该热管散热器具有良好的散热能力,在输入功率为50W的情况下能控制节点温度在70℃以下,而且热管换热器的散热能力和工作倾角有密切关系,倾角越小,散热能力越好,垂直使用时散热能力最差,最后从理论上加以分析。
A new cooling concept for high power LED by combining the heat release of high power LED with two-phase heat transfer heat pipes was proposed,and in this study a new type of heat pipe with specific fins structure was developed.Through experimental results,we found the new heat pipe heat exchanger has the features of high efficiency of heat dissipation and compact construction which meets the demand of heat dissipation for high power LED.We also found the heat dissipation performance of the HP heat exchanger changed with the work angle.

关键词(KeyWords): LED冷却;热管;结点温度;工作倾角
high power LED;heat pipe;work angle;heat transfer coefficient.

Abstract:

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基金项目(Foundation): 北京市自然科学基金资助项目(3073014);; 2011年度河北省自然科学基金资助项目(E2011209050);; 2010年度唐山市科学技术研究与发展计划项目(10110225C)

作者(Author): 勾昱君;刘中良;钟晓晖;
GOU Yu-jun1,2,LIU Zhong-liang1,ZHONG Xiao-hui3(1.The Education Ministry Key Laboratory of Enhanced Heat Transfer and Energy Conservation,Beijing University of Technology, Beijing 100022,China;2.Tangshan College,Tangshan 063009,China;3.Hebei United University,Tangshan,063009 China)

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