Dry-type transformer coil forming mold

By improving the structure of the dry-type transformer coil forming mold, adopting a sealing ring and clamping rod design to achieve rapid installation and demolding, and utilizing an exhaust assembly to discharge gas, the problems of inconvenient demolding and troublesome cleaning in the existing technology are solved, thereby improving production efficiency and coil quality.

CN224426192UActive Publication Date: 2026-06-30ANHUI FENGTE ELECTRIC TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ANHUI FENGTE ELECTRIC TECH CO LTD
Filing Date
2025-07-09
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Existing dry-type transformer coil forming molds are inconvenient in terms of demolding and cleaning, resulting in low production efficiency.

Method used

A mold structure was designed that includes a base, an inner mold, an outer mold, a sealing ring, a positioning sleeve, a clamping rod, and an exhaust assembly. The outer mold is fixed by the sealing ring, the clamping rod enables quick installation and demolding, and the exhaust assembly discharges gas to ensure the quality of coil forming.

Benefits of technology

It enables a convenient demolding process and mold cleaning, improves production efficiency and coil forming accuracy, avoids resin residue, and enhances production efficiency and coil quality.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224426192U_ABST
    Figure CN224426192U_ABST
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Abstract

This utility model relates to the field of dry-type transformer technology and discloses a dry-type transformer coil forming mold, including a base, a forming component on the top of the base, and an exhaust component on the base. In this dry-type transformer coil forming mold, the outer mold is inserted into a sealing ring on the base, which not only fixes its position but also provides a seal to prevent epoxy resin used for casting from flowing into the base. Two positioning sleeves are then placed on the outside of the outer mold, and the locking rod on the mounting base is rotated and engaged in the mounting base, enabling rapid installation of the entire mold. After the coil is formed, the locking rod is rotated out of the mounting base, releasing its fixing effect on the two positioning sleeves, allowing the positioning sleeves to be removed and the outer mold and the formed coil to be taken out. This not only facilitates demolding but also, since the outer and inner molds are designed as a single piece, the formed coil is also a single piece without any extra lines.
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