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AlGaInP-LED发光阵列热场分析及散热设计

Thermal Field Analysis and Heat Dissipation Design of AlGaInP-based LED Light Emitting Array

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摘要

建立了5×5 AlGaInP材料LED微阵列的有限元热分析模型,根据计算对模型进行了简化。结果表明,简化模型与原始模型的温度分布规律基本一致,计算得到的两种模型在工作1.5 s时的温度相对误差为0.8%。使用简化模型模拟了含104个单元、尺寸为10 mm×10 mm×100 μm的芯片的温度场分布,工作1.5 s时的芯片中心温度已达到360.6 ℃。为解决其散热问题,设计了两种散热器,并对其结构进行了优化,分析了翅片数量、翅片尺寸、粘结材料对芯片温度的影响。

Abstract

A finite element thermal analysis model of 5×5 AlGaInP-based LED microarray was established and simplified according to the calculation results. The results show that the simplified model and original model have the same temperature distribution,relative error of simplified model is 0.8% at 1.5 s. Using the simplified model,the temperature distribution of the chip with the size of 10 mm×10 mm×100 μm and 104 units was calculated,and the center temperature of chip reached 360.6 ℃ at 1.5 s。In order to solve the problem of heat dissipation,two finned radiators were designed,and the impacts of radiator structure,adhesive material,and number of fins on the temperature of chip were simulated.

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中图分类号:TN383

DOI:10.3788/fgxb20153610.1212

所属栏目:发光学应用及交叉前沿

基金项目:国家自然科学基金(61274122);吉林省科技发展计划(20100351,20120323);长春市科技发展计划(2013269)资助项目

收稿日期:2015-07-04

修改稿日期:2015-08-17

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作者单位    点击查看

李贺:中国科学院长春光学精密机械与物理研究所 应用光学国家重点实验室,吉林 长春130033中国科学院大学,北京100049
梁静秋:中国科学院长春光学精密机械与物理研究所 应用光学国家重点实验室,吉林 长春130033
梁中翥:中国科学院长春光学精密机械与物理研究所 应用光学国家重点实验室,吉林 长春130033
王维彪:中国科学院长春光学精密机械与物理研究所 应用光学国家重点实验室,吉林 长春130033
田超:中国科学院长春光学精密机械与物理研究所 应用光学国家重点实验室,吉林 长春130033
秦余欣:中国科学院长春光学精密机械与物理研究所 应用光学国家重点实验室,吉林 长春130033
吕金光:中国科学院长春光学精密机械与物理研究所 应用光学国家重点实验室,吉林 长春130033

联系人作者:李贺(294811131@qq.com)

备注:李贺(1990-),男,辽宁锦州人,硕士研究生,2013年于东北大学获得学士学位,主要从事LED微阵列器件的设计与制备的研究。

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引用该论文

Li He,LIANG Jing-qiu,LIANG Zhong-zhu,WANG Wei-biao1,TIAN Chao,QIN Yu-xin,LYU Jin-guang. Thermal Field Analysis and Heat Dissipation Design of AlGaInP-based LED Light Emitting Array[J]. Chinese Journal of Luminescence, 2015, 36(10): 1212-1219

李贺,梁静秋,梁中翥,王维彪,田超,秦余欣,吕金光. AlGaInP-LED发光阵列热场分析及散热设计[J]. 发光学报, 2015, 36(10): 1212-1219

被引情况

【1】包兴臻,梁静秋,梁中翥,秦余欣,吕金光,王维彪. 像素分割对LED电流密度及光照度分布的影响. 发光学报, 2016, 37(11): 1399-1407

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