| 基于热管散热的LED器件封装热分析 |
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| 引用本文： | 鲁祥友,华泽钊,谢远来,刘美静.基于热管散热的LED器件封装热分析[J].电力电子技术,2009,43(3). |
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| 作者姓名： | 鲁祥友 华泽钊 谢远来 刘美静 |
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| 作者单位： | 1. 上海理工大学,上海,200093
2. 中国科学院等离子体物理研究所,安徽,合肥,230031 |
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| 基金项目： | 国家自然科学基金，上海市重点学科建设项目，上海市研究生创新基金 |
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| 摘 要： | 大功率发光二极管(Light Emitting Diode,简称LED)结点温度的高低汽接影响到LED的寿命和可靠性,故保持LED结温在允许的范围内,是大功率LED封装和应用必须解决的核心问题.提出将扁平热管应用在大功率LED的散热上;比较了扁平热管和铜板两种散热方式下 LED的结点温度和热阻的热特性.研究结果表明,在输入功率为3 W时,热管冷却LED的结点温度为52℃,而铜板冷却LED的结点温度为83℃,对应的系统总热阻分别为8.8 K/W和19K/W.由此证明,在大功率条件下,热管的散热能力明显优于传统的铜板散热.
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| 关 键 词： | 发光二极管 封装 热管/结点温度 |
Thermal Analysis of LED Packages based on Heat Pipe Heat Sink |
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| LU Xiang-you,HUA Ze-zhao,XIE Yuan-lai,LIU Mei-jing.Thermal Analysis of LED Packages based on Heat Pipe Heat Sink[J].Power Electronics,2009,43(3). |
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| Authors: | LU Xiang-you HUA Ze-zhao XIE Yuan-lai LIU Mei-jing |
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| Affiliation: | 1.University of Shanghai for Science and Technology;Shanghai 200093;China;2.Institute of Plasma Physics;Chinese Academy of Sciences;Hefei 230031;China |
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| Abstract: | The junction temperature of high-power light emitting diode(LED) has directly influence upon the life time and reliability of high power LED,so keeping the junction temperature of LED in the given range is a key issue being dealt with during device packing and application of high power LED.A new type structure flattened heat pipe cooling device for high power LED is brought forward.The thermal conductivity including junction temperature and thermal resistance of LED is studied in different heat dissipation ... |
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| Keywords: | light emitting diode packing heat pipe / junction temperature |
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