The luminous efficiency of LED chip is related to its input power and junction temperature. When the junction temperature of LED chip exceeds a given value, its luminous efficiency will decline, and more electric energy will be converted into heat energy. Therefore, it is necessary to dissipate heat of LED chip. In this paper, in the design process of the heat sink of high-power LED lamp, several flat plate micro heat pipes are embedded among the fins. At the same time, an improved differential evolution algorithm is used to complete the design of the whole heat sink. The experimental results show that compared with the conventional heat sink design method, the proposed method in this paper can better reduce the junction temperature of LED chip, and obtain better thermal transfer performance.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Heat Sink Design for High Power LED Lamp Based on Differential Evolution Algorithm and Heat Pipes


    Additional title:

    Lect. Notes Electrical Eng.


    Contributors:
    Jia, Limin (editor) / Qin, Yong (editor) / Liang, Jianying (editor) / Liu, Zhigang (editor) / Diao, Lijun (editor) / An, Min (editor) / Zhongliang, Pan (author) / Ling, Chen (author)

    Conference:

    International Conference on Electrical and Information Technologies for Rail Transportation ; 2021 October 21, 2021 - October 23, 2021



    Publication date :

    2022-02-22


    Size :

    7 pages





    Type of media :

    Article/Chapter (Book)


    Type of material :

    Electronic Resource


    Language :

    English





    LED LAMP WITH A FLEXIBLE HEAT SINK

    ELWELL JAMES P / QUICK TRENT | European Patent Office | 2018

    Free access

    INTEGRALLY FORMED HEAT SINK AND LAMP HOUSING FOR VEHICLE LAMP ASSEMBLY

    GORDON MARK R / WAINSCOTT LARRY E | European Patent Office | 2018

    Free access

    Integrally formed heat sink and lamp housing for vehicle lamp assembly

    GORDON MARK R / WAINSCOTT LARRY E | European Patent Office | 2018

    Free access

    Improved radial heat sink for led lamp cooling

    Costa, Vitor A.F. / Lopes, Antonio M.G. | Tema Archive | 2014