Title:
MAGNETIC MATERIAL CORE, WINDING WITH MAGNETIC MATERIAL CORE, ROTARY ELECTRIC MACHINE, AND BRUSHLESS MOTOR
Document Type and Number:
WIPO Patent Application WO/2023/188523
Kind Code:
A1
Abstract:
The present invention relates to a magnetic material core used in a rotary electric machine. The magnetic material core includes a back yoke portion including a first lower surface, a tooth tip portion including a second upper surface, and a tooth portion around which a winding portion of a conductor is wound as viewed in a vertical direction. The magnetic material core has at least one of a structure (A) and a structure (B). (A) The first lower surface is provided with one or more first protruding portions shaped to protrude downward. (B) The second upper surface is provided with one or more second protruding portions shaped to protrude upward.
Inventors:
YAMAMOTO RYOSUKE (JP)
SAITO MITSUHIRO (JP)
AMANO HISATO (JP)
NANSAKA TAKUYA (JP)
NATSUMEDA MITSUTOSHI (JP)
ISHIZUKA KAZUYOSHI (JP)
KISHIMOTO DAIKI (JP)
SAITO MITSUHIRO (JP)
AMANO HISATO (JP)
NANSAKA TAKUYA (JP)
NATSUMEDA MITSUTOSHI (JP)
ISHIZUKA KAZUYOSHI (JP)
KISHIMOTO DAIKI (JP)
Application Number:
PCT/JP2022/042604
Publication Date:
October 05, 2023
Filing Date:
November 16, 2022
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
H02K1/14
Domestic Patent References:
| WO2017077590A1 | 2017-05-11 |
Foreign References:
| JP2008278632A | 2008-11-13 | |||
| JP2014207755A | 2014-10-30 | |||
| JPH11332138A | 1999-11-30 |
Attorney, Agent or Firm:
KAEDE PATENT ATTORNEYS' OFFICE (JP)
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