Switch for shared power supply cabinet capable of avoiding silver migration

By designing an interval section and a pin hole structure in the switch of the shared power bank cabinet, the creepage distance is increased, the short circuit problem caused by silver migration is solved, and the weather resistance and electrical stability of the switch are improved.

CN224110165UActive Publication Date: 2026-04-10SHENZHEN XINDONG PRECISION HARDWARE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-12
Publication Date
2026-04-10

AI Technical Summary

Technical Problem

Existing shared power bank cabinet switches are prone to silver migration under high-frequency, high-current conditions, leading to terminal short circuit failure, which is accelerated in high humidity and dust environments, affecting electrical stability.

Method used

A switch structure was designed, comprising a rubber handle, a housing, and an end cap. The interior is provided with a spacer and a pin hole. The creepage distance is increased by using a rubber wall and groove structure, and the conductive connection is optimized by using a flexible pin and an arc groove design to reduce the contact area between the terminal and the air and prevent silver migration.

Benefits of technology

It effectively blocks silver migration, increases the creepage distance between terminals by more than 2 times, avoids short circuits, and improves the weather resistance and electrical stability of the switch.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224110165U_ABST
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Abstract

The utility model relates to a switch for a shared power supply cabinet capable of avoiding silver migration in the field of switches, which comprises a rubber handle, a box body and an end cover, a containing cavity is arranged in the box body, the rubber handle is rotatably arranged in the containing cavity, the end cover is used for covering an opening of the containing cavity, the rubber handle penetrates through the end cover and extends to the outer side of the end cover, a terminal and an elastic sheet are arranged in the containing cavity, and the elastic sheet is arranged in the containing cavity. Two terminals are arranged in the containing cavity, conductive inserting pieces of the terminals extend to the outer side of the box body, the two ends of the elastic piece abut against the terminals and the rubber handle respectively, the rubber handle is made to be subjected to pretightening force overturning towards an opening of the containing cavity through the elastic piece, the two terminals are conductively connected through the elastic piece, and a partition part is arranged on the bottom face of the containing cavity. The spacing part is located between the two terminals, the surface of the spacing part is provided with a glue wall and a groove, and the surface area of the spacing part is increased by the convex structure of the glue wall and the concave structure of the groove, so that the surface discharge path is prolonged.
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