一种高功率LED射灯的散热设计与试验研究.PDF

Technolog yColumn doi: 1013969/j1issn11003-353x120101051007 LED 1 1 2 余桂英, 朱旭平 , 胡锡兵 ( 11 中国计量学院计量测试工程学院, 杭州310018; 21 铜陵毅远电光源有限责任公司, 安徽铜陵244002) : 以一款MR16LED 射灯为模型, 采用ANSYS 有限元软件进行热分析以散热器翅片保 持60 e 为标准, 通过实验与仿真相结合的方法, 分析了LED 射灯的热流功率散热器基座厚度 LED 芯片间距对流面积对整个系统散热性能的影响结果表明, 散热器对流面积是影响灯具散 热性能的最重要因素; 对一定的散热器, 存在一个有效的最大芯片输入功率现有MR16 LED 射 灯的散热器最大散热功率只能达到215 W 左右, 要使散热功率增大并且发挥散热器最佳性能, 必 须增加散热器的对流面积对该结构散热器散热性能的定量研究对今后高功率LED 灯具的生产 具有一定的指导意义 : 发光二极管; 散热器; 有限元; 热分析; ANSYS 软件 : TN31218 : A : 1003-353X (2010) 05-0443-04 库 ThermalDesignandExperimental StudyofHigh-PowerLEDSpotLamp 例 1 1 2 Yu Guiying , Zhu Xuping , Hu Xibing ( 11 College of Metrology and Measurement Engineering, China Jiliang University, Hangzhou 310018, China; 案 21Tongling-Yi Yuan Electric Light Source Co. , Ltd., Tongling 244002, China) E A Abstract: With MR16 LED spot lamp as a model, thermal analysis is carried out b yfinite element of C software ANSYS. Keeping heat sink fins 60 e as standard, all components of the spot lamp which effected on thermal performance of entire system are analyzed concluding convection coefficient b yexperiment and simulation. The results show that convection area of heat sink is the most important factor influence on the