Title:
STEPPING MOTOR
Document Type and Number:
WIPO Patent Application WO/2021/260809
Kind Code:
A1
Abstract:
A stepping motor (1) is provided with a claw pole stator core (3), and the stator core (3) uses a punched core (31). The punched core (31) comprises: a belt-like portion (41) corresponding to the back yoke portion (24) of the stator core (3) in an expanded state; a plurality of trapezoidal portions (44) corresponding to an upper end magnetic path portion (22) or a lower end magnetic path portion (23) of the stator core (3); a gap portion (45) provided between mutually adjacent trapezoidal portions (44) of the plurality of trapezoidal portions (44); and a plurality of claw-like portions (46) corresponding to magnetic pole portions (21) of the stator core (3).
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Inventors:
KAWASAKI SACHIKO (JP)
OGAWA TORU (JP)
OGAWA TORU (JP)
Application Number:
PCT/JP2020/024660
Publication Date:
December 30, 2021
Filing Date:
June 23, 2020
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H02K1/14; H02K15/02; H02K37/14
Foreign References:
| JP2016141881A | 2016-08-08 | |||
| JPS51107410A | 1976-09-24 | |||
| JP2000184682A | 2000-06-30 | |||
| JP2009077529A | 2009-04-09 | |||
| JPH10127024A | 1998-05-15 | |||
| JP2001314071A | 2001-11-09 | |||
| JPH11308842A | 1999-11-05 |
Attorney, Agent or Firm:
SANNO PATENT ATTORNEYS OFFICE (JP)
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