基于室内大功率LED灯具的散热装置设计与优化  

Design and Optimization of Heat Dissipation Device Based on High-Power LED Lamps

作　　者：刘共升 胡兴 张文华 LIU Gongsheng;HU Xing;ZHANG Wenhua(Shenzhen SEVA Lighting Co.,Ltd.,Shenzhen 518000,China)

机构地区：[1]深圳市尚为照明有限公司,广东深圳518000

出　　处：《中国照明电器》2024年第8期104-107,共4页China Light & Lighting

摘　　要：本文旨在优化室内大功率LED灯具的散热装置设计,采用纳米碳铜复合材料、树枝状分形结构和液态金属散热界面,构建了新型散热系统。通过ANSYS Fluent仿真和实验验证,研究了散热材料、结构和界面对LED结温的影响。结果表明,优化设计可使LED结温降低24.4℃,散热器热阻降低41.8%,光通量提高8.7%。研究成果为大功率LED灯具散热设计提供了新思路,有助于提高LED灯具的性能和可靠性。This paper aims to optimize the design of the heat dissipation device for indoor high-power LED lamps.A new type of heat dissipation system is constructed by using nano-carbon copper composite materials,dendritic fractal structures,and liquid metal heat dissipation interfaces.Through ANSYS Fluent simulation and experimental verification,the influences of heat dissipation materials,structures,and interfaces on the junction temperature of LEDs are studied.The results show that the optimized design can reduce the junction temperature of LEDs by 24.4 C,reduce the thermal resistance of the heat sink by 41.8%,and increase the luminous flux by 8.7%.The research results provide new ideas for the heat dissipation design of high-power LED lamps and help improve the performance and reliability of LED lamps.

关 键 词：LED照明 散热 碳铜复合材料 分形结构 

分 类 号：TM923.34[电气工程—电力电子与电力传动]