| 梳状散热器结构和角度对大功率LED结温的影响 |
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| 引用本文： | 刘海林,吴礼刚,戴世勋,林万炯,周伯友,金小明. 梳状散热器结构和角度对大功率LED结温的影响[J]. 光学技术, 2012, 0(6): 650-654 |
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| 作者姓名： | 刘海林 吴礼刚 戴世勋 林万炯 周伯友 金小明 |
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| 作者单位： | 宁波大学信息学院;宁波工程学院电子与信息工程学院;宁波赛尔富电子有限公司 |
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| 基金项目： | 宁波市重大科技攻关项目(2010B10005);浙江省公益性技术应用研究计划项目(2010C31087);宁波市自然科学基金资助项目(2010A610180);浙江省新苗人才计划(2011R405042) |
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| 摘 要： | 利用计算流体力学(CFD)软件Fluent模拟了梳状肋片散热器的大功率LED灯的温度场分布。从散热器肋片高度、肋片间距以及灯具的照射角度三方面分析了散热器的散热效果。通过对比分析不同散热器的速度流场与温度场分布,得知当肋片高度为10mm、间距为4.1mm时散热器散热效果最佳。灯具的照射角度也会影响到散热器的散热性能,当照射角为90°时散热器性能最佳。
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| 关 键 词： | 应用光学电子学 计算流体力学 LED 散热器 |
Effect of comb heat sink structure and irradiation angle on high-power LED junction temperature |
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| LIU Hailin,WU Ligang,DAI Shixun,LIN Wanjiong,ZHOU Boyou,JIN Xiaoming. Effect of comb heat sink structure and irradiation angle on high-power LED junction temperature[J]. Optical Technique, 2012, 0(6): 650-654 |
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| Authors: | LIU Hailin WU Ligang DAI Shixun LIN Wanjiong ZHOU Boyou JIN Xiaoming |
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| Affiliation: | 1.College of Information Science and Engineering,Ningbo University,Ningbo 315211,Zhejiang,China)(2.Electronic and Information Engineering College,Ningbo University of Technology,Ningbo 315216,Zhejiang,China)(3.SELF Electrics Co.,Ltd.,Ningbo 315103,Zhejiang,China) |
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| Abstract: | Firstly,he temperature distribution of a high-power LED lamp is simulated with a plate fin heat-sink by computational fluid dynamics software.And then,by the way of changing the fin height,spacing of heat-sink and light's irradiation angle,the cooling effect of heat-sink is analyzed.Comparing the different heat-sink's velocity flow field and temperature distribution,the radiator shows the better performance with fin height of 10mm and fin spacing of 4.1mm.The irradiation angle also affects the radiator cooling performance,the radiator performance is best when the irradiation angle is 90°. |
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| Keywords: | applied optoelectronics CFD(computational fluid dynamics) LED heat-sink |
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