LED异形灯蜂巢散热器设计与实验  

Design and Experiment of Special-Shaped LED Lamp with Honeycomb Radiator

作　　者：唐帆[1] 王丹[2] 郭震宁[1] 

机构地区：[1]华侨大学信息科学与工程学院福建省光传输与变换重点实验室,福建厦门361021 [2]华侨大学机电及自动化学院,福建厦门361021

出　　处：《激光与光电子学进展》2017年第6期236-242,共7页Laser & Optoelectronics Progress

基　　金：福建省科技计划引导性重点项目(2016H0022);华侨大学研究生科研创新能力培育计划资助项目(1400201001)

摘　　要：为了提高发光二极管(LED)灯具的散热能力,基于烟囱效应原理,设计了一种新型的LED灯具散热结构。运用SolidWorks软件构建三维模型,利用其Flow Simulation插件进行热仿真。当功率为10W时,LED芯片的最高温度为81.34℃;当功率增加到15W时,芯片的最高温度变为105.54℃,高于其安全工作温度(85℃)。提出了在基板中间加入蜂巢散热器的改进方案,使LED芯片的最高温度下降了30.54℃,并进行了优化实验。研究结果表明:当蜂巢类型为正六边形、蜂巢边长为6.0mm、蜂巢壁厚为1.0mm时,LED异形灯的散热效果最好,LED芯片的最高温度为74.47℃,散热器质量为47.19g。当功率为8,12,15,18 W时,LED芯片的最高温度都满足安全工作要求。通过对8 W的LED异形灯样品进行实验测试,证实了研究的准确性。To improve the cooling capacity of light emitting diode （LED） lamps, a new type of LED lamp radiating structure is designed based on the principle of the chimney effect. A three-dimensional model is built by SolidWorks, and its plug called Flow Simulation is used to simulate the model build. The highest temperature of LED chip is 81.34℃when the power is 10 W. When the power is increased to 15 W, the highest temperature is 105.54 ℃, and it is higher than the security temperature （80 ℃） of LED chip. An improved scheme of adding the honeycomb radiator in the middle of the substrate is proposed. Which reduces the highest temperature of the LED chip by 30. 54 ~C, and the optimization experiment is carried out. The results show that when the type of honeycomb is regular hexagon, the length of honeycomb is 6.0 mm and the thickness of the honeycomb is 1.0 mm, special-shaped LED lamp has the best heat dissipation effect. The highest temperature of LED chip is 74.47 ℃ and radiator mass is 47.19 g. When the power is 8, 12, 15, 18 W, the highest temperatures of the LED lamp meet the safety requirements. The accuracy of the study is confirmed by the experiment of 8 W special-shaped LED lamp samples.

关 键 词：光学器件 散热 发光二极管异形灯 烟囱效应 蜂巢 

分 类 号：TN312[电子电信—物理电子学]