地铁车辆刮雨器开关烧损故障分析及改进方案

Analysis of contactor melting loss and improvement scheme for metro vehicle window wiper

近年来,南京地铁车辆多次出现刮雨器开关烧损的现象。针对该问题,首先对刮雨器工作原理进行详细分析,然后,在此基础上,研究刮雨器开关烧损的原因。最后提出针对该问题的2个解决方案,并进行现车改装验证,效果良好。

In recent years,the incidents of contactor melting loss of window wiper have occurred repeatedly on Nanjing metro vehicles.In view of this problem,the wiper working principle is analyzed in detail,and the causes of contactor melting loss of window wiper are studied.This paper puts forward two solutions to the problem,and vehicle modifi cation verifi cation and the result is good.