大功率LED路灯的散热结构设计和参数优化  

Design of the heat dissipation structure and parameters optimization in high-power LED lamp

作　　者：庄四祥 张跃宗[1,2] 梁鸣娟 卿笃碑 

机构地区：[1]东莞勤上光电股份有限公司,广东东莞523565 [2]深圳信息职业技术学院,广东深圳525350

出　　处：《电子设计工程》2011年第4期66-69,共4页Electronic Design Engineering

基　　金：国家"863"计划资助项目(2008AA03A194);广东省重大科技专项资助资目(2010A080802001)

摘　　要：为了达到对大功率LED路灯产品既降低制造成本(散热器质量)又加快散热的目的,优化了LED路灯散热器结构。在对原有结构参数化建模及热分析的基础上,采用正交试验分析了散热器中平板厚度、翅片厚度、翅片间距、翅片高度4因素对产品质量与散热效果的影响,并研究了同一结构下热传导与热对流两种方式对散热的影响,最终得出了一个较为理想的优化结果。数据结果表明,改进后的散热器最高温度较原始模型下降了11℃以上,同时,质量降低了约15.3%。The structure of radiator was optimized in order to achieve less manufacturing cost （less mass of radiator） and better heat dissipation of high-power LED lamp. Based on parameterized model and thermal analysis of original radiator, the influence of plate thickness,fin thickness,fin spacing and fin height 4 factors on productls mass and heat dissipation was analyzed according to orthogonal experimental. Meanwhile,influence heat of conduction and convection to heat elimination under the same structure were considered, and finally a relatively ideal optimization result was presented. Results show that comparing to the original structure, the maximum temperature of optimized one is dropped more than 11℃, while mass is decreased about 15.3%.

关 键 词：大功率LED路灯 热分析 散热结构 ANSYS 

分 类 号：TN305.94[电子电信—物理电子学]