US 12,176,771 B2
Conductor wire insulating film separating method
Hideharu Ushida, Kariya (JP); Tetsuya Matsubara, Kariya (JP); Hiroyuki Ono, Kariya (JP); Toshiro Nakamura, Nisshin (JP); Yasuhiro Makido, Toyota (JP); Akihiro Ueda, Nisshin (JP); Ken Shirai, Toyota (JP); and Ryosuke Maruyama, Kariya (JP)
Assigned to AISIN CORPORATION, Kariya (JP); TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP); and DENSO CORPORATION, Kariya (JP)
Appl. No. 17/772,697
Filed by AISIN CORPORATION, Aichi (JP); TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP); and DENSO CORPORATION, Kariya (JP)
PCT Filed Jan. 28, 2021, PCT No. PCT/JP2021/003008
§ 371(c)(1), (2) Date Apr. 28, 2022,
PCT Pub. No. WO2021/153663, PCT Pub. Date Aug. 5, 2021.
Claims priority of application No. 2020-015515 (JP), filed on Jan. 31, 2020.
Prior Publication US 2023/0006521 A1, Jan. 5, 2023
Int. Cl. H02K 3/12 (2006.01); H02K 3/34 (2006.01); H02K 15/00 (2006.01); H02K 15/04 (2006.01); H02K 15/085 (2006.01)
CPC H02K 15/04 (2013.01) [H02K 3/12 (2013.01); H02K 3/34 (2013.01); H02K 15/0068 (2013.01); H02K 15/085 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A conductor wire insulating film separating method comprising:
a preparing step involving preparing rectangular cross-section coil pieces each of which is a conductor wire coated with an insulating film and used to provide a stator coil of a rotary electric machine;
a delivering-in step involving, after the preparing step, delivering the coil pieces into a laser separator, with the coil pieces in alignment with each other such that extremities of the coil pieces are adjacent to each other;
an applying step involving, after the delivering-in step, continuously applying film removing laser to the extremities of the aligned coil pieces such that the film removing laser is applied to one extremity and then to another extremity, thus removing at least portions of the insulating film from the extremities of the coil pieces; and
a delivering-out step involving delivering the coil pieces, from which the at least portions of the insulating film have been removed by the applying step, out of the laser separator.