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.
Heat Sink Design for High Power LED Lamp Based on Differential Evolution Algorithm and Heat Pipes
Lect. Notes Electrical Eng.
International Conference on Electrical and Information Technologies for Rail Transportation ; 2021 October 21, 2021 - October 23, 2021
Proceedings of the 5th International Conference on Electrical Engineering and Information Technologies for Rail Transportation (EITRT) 2021 ; Kapitel : 35 ; 294-300
2022-02-22
7 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
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