照明工程学报2014，Vol.25Issue(6)：91-94,4.DOI:10.3969/j.issn.1004-440X.2014.06.019
大功率 LED 灯具散热装置的设计
Design on Thermal Solution of High Power LED Lamps
摘要
Abstract
Using APDL language to generate the analytic file , it establishes the finite element model for the LED lamp heat sink .Using length , width and numbers of the heat sink fins as the design variables and the LED maximum junction temperature as the objective function , the optimized mathematical model is established and analyzed by ANSYS thermal analysis software .The results show that the longer the length of heat sink fins , the lower the maximum junction temperature of the chip;the wider the fins width , the higher the maximum chip junction temperature;with the increasing of the numbers of fins , the maximum junction temperature will go down;but when reaching a certain value , the junction temperature will slowly increase again.Under the conditions of the LED chip junction temperature not exceeding 60 ℃, the heat sink structure optimized values are:fin length is 62.5mm, fin width is 1mm, the number of fins is 20.关键词
LED照明/灯具/热沉/优化Key words
LED lighting/lamp/heat sink/optimization分类
动力与电气工程引用本文复制引用
杨桂婷,刘一兵..大功率 LED 灯具散热装置的设计[J].照明工程学报,2014,25(6):91-94,4.基金项目
湖南省科技计划项目（2011CK3012），湖南省教育厅科研顶目 （）
