某混合动力车型冷却风扇插件烧蚀原因分析与改进

Cause analysis and improvement of ablation of cooling fan plug-in of a PHEV model

针对某混合动力车型冷却风扇插件端子烧蚀问题,通过实物解析、原理分析,利用FTA故障树工具找出所有可能引起插件烧蚀的因素,再逐一分析确认,找到导致该车型风扇插件端子烧蚀的根本原因。通过对风扇插件的改进,有效解决冷却风扇插件烧蚀问题,提升了整车电气系统的稳定性,并为以后的设计和类似问题的解决提供参考。

In this paper,aiming at the ablation problem of the cooling fan plug-in of a PHEV model,through part analysis,theoretical analysis,and FTA analysis tools,all the factors that may cause the ablation are found out,and then the factors are analyzed one by one to determine the root cause of the ablation.Through the improvement of the fan plug-in,the problem of cooling fan terminal ablation is effectively solved,and the stability of the vehicle electrical system is improved.This study has provided reference for the future design and the solution of similar problems.