US 12,237,733 B2
Coil forming device and coil of a rotating electric device
Takashi Genmoto, Hitachinaka (JP); Teruaki Higuchi, Hitachinaka (JP); Kenichi Nakayama, Hitachinaka (JP); Hiroyuki Takahoshi, Hitachinaka (JP); and Tomohiro Fukuda, Hitachinaka (JP)
Assigned to Hitachi Automotive Systems, Ltd., Hitachinaka (JP)
Filed by Hitachi Automotive Systems, Ltd., Hitachinaka (JP)
Filed on Sep. 25, 2020, as Appl. No. 17/032,480.
Application 17/032,480 is a division of application No. 15/538,873, granted, now 10,840,784, previously published as PCT/JP2015/084090, filed on Dec. 4, 2015.
Claims priority of application No. 2014-263722 (JP), filed on Dec. 26, 2014.
Prior Publication US 2021/0013783 A1, Jan. 14, 2021
Int. Cl. H02K 15/04 (2006.01); B21F 3/04 (2006.01); H02K 3/12 (2006.01); H02K 15/0421 (2025.01)
CPC H02K 15/0435 (2013.01) [B21F 3/04 (2013.01); H02K 15/0421 (2013.01); H02K 3/12 (2013.01)] 2 Claims
OG exemplary drawing
 
1. A stator for a rotating electric device, comprising:
a plurality of slots formed in an iron core, and
a plurality of split coils inserted into the plurality of slots, wherein each split coil of the plurality of split coils are coated with an insulating film,
wherein each split coil includes:
a plurality of first bent portions having an inner peripheral side thicker than a radially opposite outer peripheral side of the plurality of first bent, the first bent portions having a cross-section formed in a trapezoidal shape,
a second bent portion having an impression on an inner peripheral side of the second bent portion, and
a straight portion, having a rectangular cross-section, disposed between the first bent portion and the second bent portion,
wherein the second bent portion is arranged between two of the plurality of first bent portions.