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1. 重庆大学 输配电装备及系统安全与新技术国家重点实验室 重庆,400044
2. 重庆师范大学 物理与电子工程学院 重庆,400044
Received:18 September 2015,
Revised:03 December 2015,
Published:05 March 2016
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周静, 吴雪强, 龙兴明. 基于热场分析的LED日间行车灯优化设计[J]. 发光学报, 2016,37(3): 372-378
ZHOU Jing, WU Xue-qiang, LONG Xing-ming. Optimization Design of LED Daytime Running Lights Based on Thermal Analysis[J]. Chinese Journal of Luminescence, 2016,37(3): 372-378
周静, 吴雪强, 龙兴明. 基于热场分析的LED日间行车灯优化设计[J]. 发光学报, 2016,37(3): 372-378 DOI: 10.3788/fgxb20163703.0372.
ZHOU Jing, WU Xue-qiang, LONG Xing-ming. Optimization Design of LED Daytime Running Lights Based on Thermal Analysis[J]. Chinese Journal of Luminescence, 2016,37(3): 372-378 DOI: 10.3788/fgxb20163703.0372.
针对LED日间行车灯的设计需求
提出通过热场仿真分析实现其热性能优化设计的方法。首先
根据LED日间行车灯的结构建立其有限元仿真模型
通过实验观测LED日间行车灯工作中的温度分布情况
并以实验观测结果验证仿真模型的有效性;然后
基于以上模型仿真分析日间行车灯的灯珠间距、铝基板厚度与LED灯珠结温之间的关系;以上述关系为约束条件
结合生产成本
得出在LED灯珠一定的情况下
灯珠间距为37 mm、铝基板厚度为1 mm的最优化设计方案
使LED日间行车灯能够可靠工作且成本更低。
A new method was presented to design the LED automotive light
such as the LED daytime running light (DRL) based on the thermal analysis. Firstly
a LED was modeling by COMSOL software. And an experiment was carried out to acquire the distribution of temperature on the surface of LED. The testing results show that the LED model is valid for the thermal analysis. Then based on the model
the relationships between LED junction temperature and the interval of LEDs
and thickness of MCPCB were discussed detailedly. Finally
considering the costs
the proposed design of the LED DRL is that the interval between LEDs is 37 mm and the thickness of MCPCB is 1 mm.
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