| 照射角度对大功率LED筒灯散热性能影响的分析 |
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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.照射角度对大功率LED筒灯散热性能影响的分析[J].电子器件,2013,36(2):180-183. |
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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);浙江省新苗人才计划(2011R405042) |
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| 摘 要： | 为了满足照明需求,有时需要将LED灯具设计成照射角度可调的结构,采用有限元软件分析了三款搭配常见散热器的大功率LED筒灯在不同照射角度下的散热性能,结果发现搭配辐射状散热器的LED筒灯在低于30°照射角下散热效果较佳;搭配平板状散热器的LED筒灯绕不同方向转动照射时散热效果不同,在绕文中所示X轴方向转动时散热效果较好,适合多角度照射;搭配柱状散热器的LED筒灯在多角度照射情况下都具有较好的散热效果。研究结果为以后的筒灯设计提供了参考依据。
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| 关 键 词： | 大功率LED筒灯 散热性能 照射角度 有限元 |
The analysis of irradiation angle impact on thermal performance of high-power LED Downlight |
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| LIU Hailin,WU Ligang,DAI Shixun,LIN Wanjiong,ZHOU Boyou,JIN Xiaoming.The analysis of irradiation angle impact on thermal performance of high-power LED Downlight[J].Journal of Electron Devices,2013,36(2):180-183. |
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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 Zhejiang 315211,China; 2.Electronic and Information Engineering College,Ningbo University of Technology,Ningbo Zhejiang 315016,China; 3.SELF Electrics Co.,Ltd,Ningbo Zhejiang 315103,China) |
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| Abstract: | Sometimes, we need to design the LED lighting into the structure of the irradiation angle adjustable in order to meet the lighting needs. In this paper, we finish the thermal performance analysis of three high-power LED Downlights with different heat sink illuminating in different angle by the finite element software. The result showed that the LED Downlight with a radial heat sink has the better thermal performance in irradiation angle of less than 30°;The cooling effect of flat-shaped lamp is different when it around in different directions to turn the irradiation angle. When it rotates around the X axis direction, the performance is better and suitable for multi-angle irradiation; Lamp in the case of multi-angle irradiation with a prism-shaped radiator has better cooling performance. This study could provide a reference for the design of the later Downlight. |
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