Title:
METHOD FOR MANUFACTURING COIL, DEVICE FOR MANUFACTURING COIL, COIL, AND MOTOR
Document Type and Number:
WIPO Patent Application WO/2019/064712
Kind Code:
A1
Abstract:
This method for manufacturing a coil 10 includes: a step for winding a wire material (conducting wire) 11 in multiple layers and multiple rows and forming a coil 10A so as to have a trapezoidal cross-sectional shape; a step for arranging the coil 10A in a molding space surrounded by a plurality of split molds; and a step for moving the molding space in a clamping direction and molding the cross-sectional shape of the coil 10A. In the step for molding the cross-sectional shape, at least one of the plurality of split molds is moved and the cross-sectional shape is molded into a fan shape by the surface formed on the split molds.
Inventors:
SUMI SHIGEHARU (JP)
Application Number:
PCT/JP2018/022315
Publication Date:
April 04, 2019
Filing Date:
June 12, 2018
Export Citation:
Assignee:
NIDEC CORP (JP)
International Classes:
H02K15/04; B21F3/02; B21F5/00; B21J5/08; B21J13/02; H02K3/04; H02K3/18
Foreign References:
| JP2007082268A | 2007-03-29 | |||
| JP3652348B2 | 2005-05-25 | |||
| JP2008278628A | 2008-11-13 | |||
| JP2014100008A | 2014-05-29 | |||
| JP2006033985A | 2006-02-02 |
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