泡沫镁合金散热器对LED灯散热性能影响因素分析  

Influence of Factors on Heat Dissipation of Foamed Magnesium LED Radiator

作　　者：李楠楠[1] 庞晓军[1] 王芳[1] 吕猛[1] 王录才[1] 

机构地区：[1]太原科技大学材料科学与工程学院,山西太原030024

出　　处：《铸造设备与工艺》2015年第2期43-45,共3页Foundry Equipment & Technology

基　　金：山西省高等学校大学生创新创业训练项目(2014294);太原科技大学大学生创新创业训练项目(2013063)

摘　　要：本文制作应用于LED灯上泡沫镁合金散热器,研究了泡沫镁合金散热器散热性能,并对其散热机理进行分析。结果表明：泡沫镁合金的孔径、孔结构和底座厚度三个因素对其散热性能影响很大,散热性能最好的泡沫镁合金结构参数为平均孔径为1.6 mm,孔隙率为60%,底座厚度在满足安装需要时越小越好。与试验中所用原始散热器相比较,泡沫镁散热器可使LED灯的温度降低1.2℃~3.9℃.The magnesium alloy foam LED lamp radiator was prepared and the heat dissipation property was studied. The influence of pore structure on the dissipation property and the cooling mechanism were analyzed. The results showed the best parameters of heat dissipation performance of foam magnesium were as fellows ： mean pore size 1.6 mm, porosity 60%, the thickness of the base 0 mm in the laboratory conditions. Compared with the present radiator, foam magnesium radiator can reduce LED temperature by 1.2 ℃~ 3.9 ℃.

关 键 词：泡沫镁 LED灯 散热 孔结构 

分 类 号：TM923.34[电气工程—电力电子与电力传动]