Title:
CORE SHEET AND METHOD FOR MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/2019/070054
Kind Code:
A1
Abstract:
Provided are: a core sheet 1 having an annular core back part 11 and a plurality of teeth parts 12 that extend from the core back part 11 toward the radial center O thereof; and a method for manufacturing the same. The core sheet 1 is obtained by carrying out a punching step, a winding step, and a removal step. The removal step includes at least partially removing a region of a grain-oriented magnetic steel sheet 3 where a band-shape core back part is to be formed, a band-shape core back part 21 of a sheet piece 2, and an insulating coating 31 in the core back part 11 of the core sheet 1.
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Inventors:
AOKI TETSUYA (JP)
TANIGUCHI MAKOTO (JP)
ISHIZUKA ATSUO (JP)
DOI SATOSHI (JP)
OKAZAKI KEIICHI (JP)
FUJIMURA HIROSHI (JP)
TAKASE TATSUYA (JP)
TANIGUCHI MAKOTO (JP)
ISHIZUKA ATSUO (JP)
DOI SATOSHI (JP)
OKAZAKI KEIICHI (JP)
FUJIMURA HIROSHI (JP)
TAKASE TATSUYA (JP)
Application Number:
PCT/JP2018/037368
Publication Date:
April 11, 2019
Filing Date:
October 05, 2018
Export Citation:
Assignee:
DENSO CORP (JP)
NIPPON STEEL & SUMITOMO METAL CORP (JP)
NIPPON STEEL & SUMITOMO METAL CORP (JP)
International Classes:
H02K15/02; H02K1/04; H02K1/12; H02K1/16
Foreign References:
| JP2017514440A | 2017-06-01 | |||
| JP2000209796A | 2000-07-28 | |||
| JP2011055607A | 2011-03-17 | |||
| JP2011067027A | 2011-03-31 | |||
| JP2012090391A | 2012-05-10 | |||
| JPH0992561A | 1997-04-04 |
Other References:
See also references of EP 3694087A4
Attorney, Agent or Firm:
TOHDA, Kiyoshi (JP)
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