Switching device

By placing the electromagnetic system on both sides of the contact system in the contactor, and utilizing the cooperation of the linkage shaft and the reaction spring, the problem of excessive contactor height is solved, achieving a compact structural design and a simplified installation process.

CN224318411UActive Publication Date: 2026-06-02ZHEJIANG CHINT ELECTRIC CO LTD
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Patent Information

Application Number
CN202520757981.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-21
Publication Date
2026-06-02
Estimated Expiration
2035-04-21

AI Technical Summary

Technical Problem

The electromagnetic and contact systems of existing contactors are distributed vertically, resulting in a high contactor height that makes installation impossible in certain locations and inconvenient.

Method used

Two electromagnetic systems are positioned opposite each other on both sides of the contact system. The contact support is driven by a linkage shaft to achieve the contact and separation of the moving contact and the stationary contact. The contact support moves under the action of a reaction spring, reducing the height occupation. It is linked with the electromagnetic system through a linkage slot, simplifying the installation process.

Benefits of technology

It enables use in locations where installation is impossible at the original height, simplifies the installation process, reduces the height of the switchgear, has a compact structure, is easy to assemble and disassemble, and improves driving force and installation efficiency.

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Abstract

The switching device comprises a shell, a contact support, a counter-force spring, a contact system and two electromagnetic systems, the two electromagnetic systems are oppositely arranged on the two sides of the contact system, each electromagnetic system comprises an upper armature and a coil used for driving the upper armature to move, and the upper armatures of the two electromagnetic systems are connected through a linkage shaft. A linkage groove is formed in the top side of the contact support, the linkage shaft is installed in the linkage groove, the two electromagnetic systems drive the contact support through the linkage shaft to overcome the acting force of the counter-force spring to move linearly, the contact support drives the moving contact to make contact with the static contact, and the contact support drives the moving contact to be separated from the static contact under the action of the counter-force spring. According to the switching device, the two electromagnetic systems are oppositely arranged on the two sides of the contact system, the height of the switching device is reduced, the contact support is linked with the two electromagnetic systems through the linkage groove which is formed in the top side and used for containing the linkage shaft, extra height space is not occupied, and disassembly and assembly are convenient.
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