PET and PBT materials were used in automotive electronic connectors to insulate and protect the terminals.And there were a narrow space structure formed with PCB,the problem of PIN corrosion caused by condensation forming liquid water in the humid environment.In this paper,aiming at case of PCB corrosion caused by controller connectors,and combined with the working environment of the controller,The real cause of PCB corrosion is determined through the analysis of the controller vehicle connector and control circuit.Then,the improvement measures are put forward from the design direction of controller port protection and power module architecture,and the effectiveness of the rectification scheme is proved by the verification of the rectification scheme.Finally,verification suggestions are also given from the perspective of Environmental conditions and testing of components.
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