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| LED散热情况研究 |
| Study on heat-release conditions of LEDs |
| 投稿时间：2013-09-28 |
| DOI：10.13259/j.cnki.eri.2014.02.013 |
| 中文关键词: LED 散热器 热学仿真 有限元法 热导率 |
| 英文关键词:LED heat sink thermal simulation finite-volume method thermal conductivity |
| 基金项目: |
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| 摘要点击次数: 2254 |
| 全文下载次数: 1876 |
| 中文摘要: |
| 在静态常温空气中的4种不同工况下对一款带有鳍片式散热器的LED进行了热学测试，对所得结果进行了对比分析，得到了LED功率与其底盘焊点温度之间的关系.在SolidWorks软件中建立了带有相同散热器的9颗LED灯具模型，借助热学仿真软件Flow Simulation用有限元法对其进行分析计算，由结果可知：中心LED温度最高，为64.31℃，周围8颗LED温度几乎相同，其平均温度为62.7℃，并推测了影响两者温差大小的因素. |
| 英文摘要: |
| The temperature of LED with fin type heat sink was tested under 4 different working conditions in free air.The relationship between LED power and the solder temperature is acquired after test result analysis.The model of 9 LEDs with the same heat sink was set up in SolidWorks,and it was solved in Flow Simulation which is a software for thermal simulation.The center LED has the highest temperature with a value of 64.31 ℃.The temperatures of the other 8 LEDs around are nearly the same,and their average temperature is 62.7 ℃.The reason of the temperature difference is analyzed. |
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