An auxiliary support for fixing current transformer coils and its manufacturing mold.

By designing the main support body and a special manufacturing mold, the transformer coil was stably fixed, solving the problems caused by insufficient insulation distance and bolt tightening, thus improving product quality and production efficiency.

CN224437387UActive Publication Date: 2026-06-30DALIAN NO 1 INSTR TRANSFORMER +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DALIAN NO 1 INSTR TRANSFORMER
Filing Date
2025-07-24
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

In the existing technology, the fixing method of the current transformer coil results in insufficient insulation distance, which can easily cause coil to ground breakdown, affecting the product's appearance and electrical performance. At the same time, the traditional bolt tightening method increases the risk of rework and scrapping.

Method used

Design an auxiliary support component including a main support body, positioning holes, outer limiting parts, inner limiting parts, slots, and multiple support points. Through point contact support and cooperation with the inner cavity of the current transformer casting mold, combined with a dedicated manufacturing mold, the precise positioning and stable fixation of the coil can be achieved.

Benefits of technology

This avoids coil breakdown problems, improves product appearance quality and electrical performance, reduces rework and scrap rates during production, simplifies production processes, increases production efficiency, and reduces costs.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224437387U_ABST
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Abstract

This utility model relates to the field of current transformer manufacturing technology, and in particular to an auxiliary support component for fixing current transformer coils and its manufacturing mold. It includes a support body main body, positioning holes, an outer limiting part, an inner limiting part, a slot, and multiple support points. The support points form point contact support with the inner cavity of the mold, and the positioning holes and cylindrical pins have a clearance fit, optimizing insulation distance and installation accuracy. The manufacturing mold includes: a left mold part, a right mold part, a slot forming part, a positioning hole forming part, a support point forming part, an adjustment component, an injection port, and a mold base, which can adapt to different size requirements. This application can avoid the breakdown problem caused by traditional support methods, improve the product's appearance quality and electrical performance, while simplifying the production process, increasing efficiency, and reducing costs.
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