发光学报2017，Vol.38Issue(1)：97-102,6.DOI:10.3788/fgxb20173801.0097
大功率远程荧光粉型白光 LED 散热封装设计
Thermal Design of High Power Remote Phosphor White LED Package
摘要
Abstract
Aiming at the heat dissipation problem of the high power remote phosphor white LED, the heat dissipation method of the package structure was studied. Based on the structure of the phosphor type white LED package and its characteristics of heat dissipation, a thermal managing method of the package was put forward, which both thermally insulated the chip and the phosphor layer and crea-ted a independent thermal dissipation path for the phosphor layer. The simulation results show that the redesigned package reduces the chip temperature by 0. 55 ℃ and the phosphor layer temperature by 10. 7 ℃ under the same boundary condition, indicating that the new design can reduce the phos-phor layer temperature without increasing the radius dimension of the package. The effect of the thermal isolation groove on the chip base can be ignored. To achieve the optimal chip and phosphor layer temperatures distribution, the thickness of the insulation layer between the chip and the phos-phor should be optimized. The new method makes the thermal management problems of the chip and the phosphor layer independent to each other, which avoids the mutual heating problems of the two, and also increases the optical design freedom of the lamp.关键词
LED 灯/荧光粉/散热设计/封装Key words
LED lamp/phosphor/thermal design/package分类
信息技术与安全科学引用本文复制引用
陈华,周兴林,汤文,吕悦晶..大功率远程荧光粉型白光 LED 散热封装设计[J].发光学报,2017,38(1):97-102,6.基金项目
湖北省自然科学基金(2015CFB220)；湖北省科技支撑计划(2014BEC055)；湖北省自然科学基金重点项目(2015CFA064)；国家自然科学基金(51578430)；武汉科技大学青年科技骨干培育计划资助项目Supported by Natural Science Fund of Hubei Province (2015CFB220)；Science and Technology Support Project of Hubei Province (2014BEC055)； State Key Program of Natural Science Fund of Hubei Province(2015CFA064)； National Natural Science Fund of China (51578430)； Youth Science and Technology Backbone Training Program of Wuhan University of Science and Technology （2015CFB220）
