Title:
METHOD FOR MANUFACTURING STATOR CORE
Document Type and Number:
WIPO Patent Application WO/2022/004206
Kind Code:
A1
Abstract:
The purpose of the invention is to reduce the time for processing a stator core while stabilizing the quality of the stator core in the manufacture thereof. Disclosed is a method for manufacturing a stator core comprising a plurality of teeth around which a coil is to be wound, a teeth-connecting part that connects adjacent ones of the teeth, and a first annular part having, on an inner circumferential part thereof, a plurality of mating parts respectively mating with the plurality of teeth. The manufacturing method comprises: (a) a step for punching out, from a sheet material 34, an inner core (second annular part) 36 in which the plurality of teeth and the teeth-connecting part are formed integrally; (b) a step for subjecting the sheet material 34, prior to the punching of the inner core 36, to a non-magnetization treatment in a section of the sheet material 34 corresponding to the teeth-connecting part; and (c) a step for mating the first annular part and the inner core 36 by the plurality of mating parts.
Inventors:
YOSHIDA YASUSHI (JP)
Application Number:
PCT/JP2021/020169
Publication Date:
January 06, 2022
Filing Date:
May 27, 2021
Export Citation:
Assignee:
MITSUBA CORP (JP)
International Classes:
H02K15/02; H02K1/18
Foreign References:
| JP2013115965A | 2013-06-10 | |||
| JP2019068724A | 2019-04-25 | |||
| JP2014093803A | 2014-05-19 | |||
| JP2015053823A | 2015-03-19 |
Attorney, Agent or Firm:
UNIUS PATENT ATTORNEYS OFFICE (JP)
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