| 基于热场分析的LED日间行车灯优化设计 |
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| 引用本文： | 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 |
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| 作者姓名： | 周静 吴雪强 龙兴明 |
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| 作者单位： | 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 |
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| 基金项目： | 重庆大学中央高校基金(CDJPY14150001)，输配电装备及系统安全与新技术国家重点实验室项目(2007DA10512713306)，国家自然科学基金(51107156) |
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| 摘 要： | 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。
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| 关 键 词： | LED汽车灯 日间行车灯 灯珠间距 铝基板厚度 最优化 |
| 收稿时间： | 2015-09-18 |
Optimization Design of LED Daytime Running Lights Based on Thermal Analysis |
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| 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 |
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| Authors: | ZHOU Jing WU Xue-qiang LONG Xing-ming |
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| Affiliation: | 1. State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing 400044, China;2. College of Physics and Electronic Engineering, Chongqing Normal University, Chongqing 400044, China |
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| Abstract: | A new method was presented to design the LED automotive light, such as the LED day-time 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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| Keywords: | LED automotive lights daytime running lights interval of LEDs thickness of MCPCB optimization design |
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