Thermostable vacuum switch tube contact structure
By designing a thermally stable vacuum switch tube contact structure, the moving contact is quickly separated using a spring and a magnet, and the arc-guiding groove and longitudinal groove are combined to guide the arc, thus solving the problem of insufficient contact and separation speed, improving breaking capacity and simplifying the installation process.
CN223941734UActive Publication Date: 2026-02-24JINZHOU HUAGUANG VACUUM VALVE TUBE CO LTD
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Patent Information
- Application Number
- CN202520307243.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-25
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-02-25
AI Technical Summary
Technical Problem
Existing vacuum switch tubes are prone to arcing due to insufficient contact and separation speed when the contacts are turned on and off, and the contact installation process is complicated.
Method used
A thermally stable vacuum switch tube contact structure is designed, which uses a spring and a magnet block. The instantaneous deformation of the spring drives the moving contact to separate quickly, and the arc is guided by the arc-initiating groove and the longitudinal groove. The installation is simplified by combining the iron core assembly.
Benefits of technology
It enables rapid contact separation, avoids arcing, improves breaking capacity, and simplifies the installation process.
✦ Generated by Eureka AI based on patent content.
Abstract
The utility model discloses a thermostable vacuum switch tube contact structure, which relates to the technical field of vacuum switch tube contact structures, and comprises a vacuum tube, a sealing sleeve is arranged on the vacuum tube, a static contact and a moving contact are arranged in the vacuum tube, iron core assemblies are arranged on the static contact and the moving contact, one end of the static contact is provided with a static end conducting rod, and the other end of the static end conducting rod is provided with an iron core assembly. One end of the moving contact is provided with a moving conductive rod, and the moving conductive rod is provided with an elastic sheet. According to the utility model, through the arrangement of the elastic sheet, the elastic sheet instantly generates deformation and changes from downward bending to upward bending, so that the moving contact and the static contact are rapidly driven to be separated through the spherical surface, arc generation caused by insufficient contact and separation speed of the moving contact and the static contact is avoided, and the working safety of the contact structure is guaranteed; through the mutual cooperation of the longitudinal groove, the magnet and the arc striking groove, the electric arc is led out through the arc striking groove and enters the longitudinal groove after being generated at the center of the contact, thereby preventing the electric arc from gathering, achieving the rapid arc extinguishing, and improving the breaking capacity.
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