Components, stator core, stator, and rotating electric machine

The core piece with oriented soft magnetic particles in the first and second members addresses the challenge of magnetic resistance in axial-gap type rotating electric machines, resulting in improved magnetic and mechanical properties.

JP7876010B2Active Publication Date: 2026-06-18SUMITOMO ELECTRIC INDUSTRIES LTD +1
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Patent Information

Application Number
JP2025005829
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Priority Date
2020-05-08
Filing Date
2025-01-15
Publication Date
2026-06-18
Estimated Expiration
2041-03-31

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Patent Text Reader

Abstract

To provide a core piece that can form an axial gap rotary electric machine having excellent magnetic properties.SOLUTION: A core piece in which a columnar first member and a plate-like second member are formed of a powder molded body by integration molding, the powder molded body has a plurality of flat soft magnetic particles, a first average aspect ratio of the soft magnetic particles in a first cross section of the first member is 1.2 or higher, and a second average ratio of the soft magnetic particles in a second cross section of the second member is 1.2 or higher.SELECTED DRAWING: Figure 1
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Citation Information

Patent Citations

  • Stator core for axial gap type motor

    JP2009044829A

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    JP2012216746A

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    JP2017229191A