Modularization LED head lamp

Luciano Lukacs¹ 梁峰²  

（福特汽车工程研究（南京）有限公司，南京211100）

摘  要：请简要描述论文的研究目的、方法、结果、结论等内容

LED虽然具备寿命长、可靠性高等优势，但是LED前照灯的可靠性因LED电路板和驱动器电路的可靠性和寿命却有一定的限制，而且目前的电子行业水平并不能保证零件零PPM，因此市场中出现了一定数量的索赔件。加之LED前照灯的成本和普通卤素前照灯相比高出几倍甚至上十倍，这些LED前照灯的质量问题产生了巨额的索赔费用。

然而，目前LED前照灯在设计上多采用了光源不可更换的设计，不但LED光源不可更换，LED电路板及驱动模块也不可单独更换，而这些零件正是LED前照灯的质量瓶颈。为了解决这一问题，设计者结合卤素光源前照灯的设计方案，将LED电路板及驱动模块均设计为可更换方式，同时兼顾售后维修的可操作性。

通过新设计方案的改善，假设售后索赔的PPM值不变，索赔费用可以降低数倍甚至十倍左右。

关键词：LED；前照灯；模块化；设计；汽车；照明

Modularization LED head lamp

Abstract:

LEDs have long life and high reliability, amongst its advantages, but the LED head lamp life is limited due to the fact that LED PCB and LED driver modules’ poor quality, and current electronic industry level cannot achieve 0 defect target, so we have got lots of warranty parts in markets. Additionally the cost of LED head lamp is much higher than Halogen head lamp, even more than ten times, all of these LED head lamp quality issues will lead to higher warranty costs.

However, the design solutions of current LED head lamp are based on non-replaced light resources, not only LED light resource but also LED driver modules cannot be replaced separately, and these parts are the top contributors of LED head lamp poor quality. To address this issue, the author studied halogen head lamp design solution, to design LED PCB and LED driver modules as replaced parts, also taking into consideration the serviceability in 4S dealers as well.

After the implementation of the suggested concept design listed as above, even if the PPM value have not been impacted, definitely the change in warranty field will be much cheaper. As a result, the warranty spends will be reduced several times, about ten times could be the target.

Key Words: LED, head lamp, modularization, design, automobile, lighting.