发光学报Issue(7)：866-871,6.DOI:10.3788/fgxb20143507.0866
替代100W白炽灯的新型12WLED球泡灯的散热性能研究
Thermal Management of Novel 12 W LED Bulb for the Substitution of 100 W Incandescent Bulb
摘要
Abstract
A new-type 12 W LED bulb was proposed based on the cold spray technology and the in-tegrated design of an aluminous heat sink to replace the traditional incandescent bulb. The heat sink was made of aluminum and manufactured by cutting and bending. The temperature fields for the dif-ferent shape LED bulbs were simulated by ANSYS to obtain the optimal shape with the lowest tem-perature. The internal structure of the copper-based plate was analyzed. Meanwhile, simulation was performed to get the temperature fields with the different copper circuit layers. The results show that the junction temperature of LED decreases with the thickness of the copper circuit layer when the thickness of the copper-based plate keeps constant. The maximum junction temperature of the 12 W LED bulb is 71 . 252 ℃ lower than the safe temperature of 85 ℃. It implies that the new-type 12 W LED bulb could meet the requirements of heat dissipation and lighting habits.关键词
LED球泡灯/铝质散热器/覆铜层/热分析Key words
LED bulbs/aluminous heat sink/copper circuit layer/thermal analysis分类
信息技术与安全科学引用本文复制引用
刘娇,刘娟芳,陈清华,何凡..替代100W白炽灯的新型12WLED球泡灯的散热性能研究[J].发光学报,2014,(7):866-871,6.基金项目
重庆市自然科学基金(CSTC2011BB4074)资助项目 （CSTC2011BB4074）
