Three-phase reactor iron core structure with symmetrical magnetic circuits

By designing a magnetically symmetrical three-phase reactor core structure, the problems of magnetic circuit asymmetry and large leakage flux in traditional reactors have been solved, achieving efficient and reliable operation of the reactor and improving material utilization.

CN223956433UActive Publication Date: 2026-02-27YUNNAN CHUANGMAI ELECTRIC MFG CO LTD
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Patent Information

Application Number
CN202520135633.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-21
Publication Date
2026-02-27
Estimated Expiration
2035-01-21

AI Technical Summary

Technical Problem

Traditional reactors suffer from problems such as magnetic circuit asymmetry, large leakage flux, unbalanced inductance, low material utilization, and difficult assembly, which affect the stability and efficiency of power systems.

Method used

The three-phase reactor core structure with magnetic circuit symmetry includes an integrated outer core and an inner core column, with column slots and connection end slots. The inner core column is matched with the electromagnetic coil, and an elastic insulating sleeve is provided between the winding part and the connection end slot to form a tenon and mortise connection, which limits the leakage magnetic field and the range of magnetic flux diffraction.

Benefits of technology

It improves the electrical performance and structural reliability of the reactor, reduces leakage flux and electromagnetic interference, saves materials, reduces power loss, and improves assembly efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of electronic devices, in particular to a three-phase reactor iron core structure with symmetrical magnetic circuits, which comprises an outer iron core and an inner core column, the center of the inner core column is a hexagonal prism-shaped column core part, three interphase side surfaces of the column core part respectively extend outwards to form winding parts, and an electromagnetic coil is wound on each winding part; column grooves corresponding to the inner core columns and the electromagnetic coils are formed in the outer iron core, and the inner core columns wound with the electromagnetic coils are arranged in the column grooves; the end portion, corresponding to each winding portion, of the outer iron core is further outwards provided with a connecting end groove, an elastic insulation rubber sleeve with a U-shaped horizontal section is arranged in each connecting end groove, and the end portions of the winding portions are arranged in the elastic insulation rubber sleeves. According to the utility model, the column groove and the connecting end groove are arranged for accommodating the inner core column, and the elastic insulating rubber sleeve is arranged between the winding part and the connecting end groove, so that the installation stability of the outer iron core and the inner core column is good; and the arrangement of the connecting end grooves matched with the end parts of the winding parts enables the winding parts to be nested in the connecting end grooves, so that the electromagnetic diffraction range is limited, and the loss is reduced.
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