中图分类号： TN312.8
文献标识码： A
DOI：10.16157/j.issn.0258-7998.191302
中文引用格式： 饶刚，杨东恒，王威. COB-LED厂房灯翅片偏转角对散热性能影响研究[J].电子技术应用，2020，46(5)：102-106.
英文引用格式： Rao Gang，Yang Dongheng，Wang Wei. Effecting study of the radiator fin deflecting angle to COB-LED workshop lamp on the heat dissipation performance[J]. Application of Electronic Technique，2020，46(5)：102-106.

Effecting study of the radiator fin deflecting angle to COB-LED workshop lamp on the heat dissipation performance

Abstract： A straight fin radiator was designed for dissipating the working heat of a circular LED lighting-source. According to thermal simulation analysis to straight fin radiator on ANSYS Icepak, it was found that there was high temperature agglomeration in the center of straight fin radiator. In order to solve the problem of temperature accumulation in the center of the radiator, the fin curve was established by the polar coordinate point fitting method, and the linear fin radiator was improved to the curve fin radiator. Six kinds of curved fin models with different deflection angles were established and simulated. The results show that when the radiator fin deflection angle is 40°, the temperature of the chip is the lowest, the effect of radiator temperature equalization is the best, and the weight of radiator is reasonable. The temperature error between simulation and measurement is less than 4%, which verifies the rationality of the research.

Key words : circular LED light source；curved fin；deflection angle；radiator；thermal simulation analysis