Title:
MOTOR
Document Type and Number:
WIPO Patent Application WO/2023/188244
Kind Code:
A1
Abstract:
This motor (1) comprises a shaft (90), a stator (80), and a rotor (2). The rotor (2) is provided with a yoke (10) and a magnet (40). The yoke (10) has an annular part (19), a magnetic pole part (15), a connection part (12), and a cavity (75). The annular part (19) is positioned on the radially inward side. The magnetic pole part (15) is positioned on the radially outward side and is in contact with the magnet (40). The connection part (12) connects the annular part (19) and the magnetic pole part (15). The cavity (75) is formed between the magnetic pole part (15) and the connection part (12) in the circumferential direction. The magnetic flux on the inside-diameter side of the magnet (40) passes through the outer peripheral surface of the magnetic pole part (15).
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Inventors:
MIYAKI JUNICHI (JP)
KAMOGI YUTAKA (JP)
KAMOGI YUTAKA (JP)
Application Number:
PCT/JP2022/016457
Publication Date:
October 05, 2023
Filing Date:
March 31, 2022
Export Citation:
Assignee:
MINEBEA MITSUMI INC (JP)
International Classes:
H02K1/276
Domestic Patent References:
| WO2014119239A1 | 2014-08-07 |
Foreign References:
| JP2021132501A | 2021-09-09 | |||
| JP2020102940A | 2020-07-02 | |||
| JP2009303307A | 2009-12-24 | |||
| US20090096308A1 | 2009-04-16 | |||
| US20200161933A1 | 2020-05-21 |
Attorney, Agent or Firm:
TORANOMON INTELLECTUAL PROPERTY FIRM (JP)
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