摘要
在电梯应用领域,LED照明系统的使用具备了节能、美观、高可靠、长寿命、简单维修等优点,但在实际工程中会经常出现各种可靠性问题。本文针对电梯照明用LED,分析了影响其可靠性的多种环境应力和各种可靠性问题,对器件层面的失效原因和机理进行了分析,以具体案例进行了LED故障机理的分析,并给出了提高可靠性的综合建议。提高LED灯具的可靠性可以减小维修成本,且提高用户的使用体验,具有现实工程意义。
In elevator application fields,LED lighting system has the advantages of energy-saving,high reliability,long service time and easy-maintaining,but there always be reliability problems occurred in reality.Aiming at LED lighting for elevator,we analyzed diversified environment stress influencing its reliability and all kinds of reliability problems,researched on failure reasons and mechanism of component.The analysis of LED failure mechanism through concrete case was finished,and some improvements were proposed.Improving the reliability of LED can reduce the fixing cost and enhance the person experience.
作者
陈海林
CHEN Hai-lin(The Fifth Electronics Research Institute of Ministry of Industry and Information Technology,Guangzhou 510610)
出处
《环境技术》
2018年第A01期59-62,67,共5页
Environmental Technology
关键词
电梯照明
LED
失效分析
elevator lighting
LED
failure analysis
