线束插件进水问题排查及优化

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1图分类号：U463.62 文献标识码：A 文章编号：1003-8639（2025）08-0167-03

【Abstract】With therapid development of automotive electrificationandintelligence，thecomplexityof vehicle electrical systems hasincreasedsignificantly.Astheneural network connectingvariouselectricalcomponents，the reliabilityof wiring harnessesdirectlyaffectsvehiclesafetyandfunctionalityHowever，wateringresscausedbyimproper designorassemblyofconnectorshasbecomeacritical factor leading tovehicle failures.Thispaper takes the water ingress faultofamotorconector inaspecificvehiclemodelasacasestudy.Throughfaulttreeanalysis，airtightness verification，high-pressure water spraytesting，andresearch onthesiphonefect，the mechanism of water ingress is systematicallyanalyzed.Thestudyreveals thatconnector typemismatchand improper instalationof waterprof gaskets are key factors triggering thesiphon effect.Basedon these findings，optimization measures such asanti-siphon design， production qualitycontrol，andstandardizedassemblyprocesssareproposed，providing theoreticalandpractical referencesforimprovingthewaterproofperformance ofwiringharnesses.

【Key words】automotive wiring harness；connector water ingress；siphon efect；waterproof design；quality control

0 引言

近年来，中国汽车保有量持续攀升，消费者对车辆安全性与可靠性的关注度日益提高。（剩余3416字）