A magnetic circuit portion of a contactor and a contactor

CN224536991UActive Publication Date: 2026-07-21XIAMEN HONGFA ELECTRIC POWER CONTROLS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
XIAMEN HONGFA ELECTRIC POWER CONTROLS CO LTD
Filing Date
2025-04-29
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

In the existing contactor magnetic circuit, the lightweight design makes it difficult to obtain a stable step for positioning the yoke plate by stamping the magnetic outer frame, which affects the positioning accuracy and normal operation of the product.

Method used

A non-magnetic positioning ring is added to the magnetic cylinder to position the installation of the yoke plate. The magnetic cylinder and the positioning ring together form a cavity in which the iron core assembly is assembled to ensure the accurate positioning of the yoke plate.

Benefits of technology

This achieves accurate positioning of the yoke plate, avoids eddy current generation, ensures normal product operation and stable operation of the magnetic circuit, and improves processing accuracy and product performance.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a kind of magnetic circuit part of contactor and contactor, magnetic circuit part includes magnetically conductive outer frame, coil assembly, magnetically conductive cylinder, iron core assembly, yoke iron plate and positioning ring, the coil assembly is assembled in magnetically conductive outer frame and has center hole, the magnetically conductive cylinder is assembled in the center hole of coil assembly and abuts to the bottom plate of magnetically conductive outer frame;The positioning ring is not magnetically conductive metal annular body or not conductive and not magnetically conductive annular body;The positioning ring is assembled in the center hole of coil assembly and abuts to magnetically conductive cylinder, the yoke iron plate abuts on the positioning ring to realize positioning assembly;Add a positioning ring above magnetically conductive cylinder, the installation of yoke iron plate is positioned by the positioning ring, guarantees the accuracy of yoke iron plate positioning.
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