US 12,132,350 B2
Stator assembling method and stator assembling apparatus
Shingo Hashimoto, Kariya (JP); Hiroyuki Tanaka, Kariya (JP); and Mitsuhiro Ide, Kariya (JP)
Assigned to AISIN CORPORATION, Kariya (JP)
Appl. No. 17/437,739
Filed by AISIN CORPORATION, Aichi (JP)
PCT Filed Jun. 4, 2020, PCT No. PCT/JP2020/022191
§ 371(c)(1), (2) Date Sep. 9, 2021,
PCT Pub. No. WO2020/246559, PCT Pub. Date Dec. 10, 2020.
Claims priority of application No. 2019-107342 (JP), filed on Jun. 7, 2019.
Prior Publication US 2022/0149675 A1, May 12, 2022
Int. Cl. H02K 1/16 (2006.01); H02K 15/06 (2006.01); H02K 15/10 (2006.01)
CPC H02K 1/16 (2013.01) [H02K 15/066 (2013.01); H02K 15/10 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A method for assembling a stator that includes: a stator core including a back yoke, teeth extending to a first side in a radial direction from the back yoke, and slots each defined between adjacent ones of the teeth and each including an opening on the first side in the radial direction; coils including slot-housed portions each housed in an associated one of the slots; and insulating members each disposed in an associated one of the slots such that the insulating members are located between inner wall surfaces of the slots facing in a circumferential direction and the slot-housed portions, the stator assembling method comprising:
a step of disposing each of the insulating members in an associated one of the slots;
a step of inserting, after the step of disposing the insulating members, opening jigs into the slots such that each insulating member is disposed between the inner wall surface of the associated slot and an associated one of the opening jigs, thus opening a portion of each insulating member on the first side in the radial direction;
a step of disposing a guide such that the guide is adjacent to the stator core in an axial direction of the stator core, the guide restricting movement of the opening jigs in the circumferential direction; and
a step of moving, after the step of opening the insulating members, the coils and the opening jigs together to a second side in the radial direction relative to the stator core while guiding the opening jigs such that movement of the opening jigs in the circumferential direction is restricted directly by the guide, thus inserting the slot-housed portions into the slots through the openings, wherein the guide is adjacent to the opening jigs in the circumferential direction such that the guide directly contacts the opening jigs when the opening jigs move in the circumferential direction during the step of moving the coils and the opening jigs together, wherein
the step of disposing the guide involves
disposing the guide such that guide portions included in the guide are arranged in the circumferential direction, and
disposing the guide such that a first one of the guide portions overlaps with the inner wall surface of a first one of the slots on a first side in the circumferential direction as viewed in the axial direction, and such that a second one of the guide portions adjacent to the first one of the guide portions in the circumferential direction overlaps with the inner wall surface of the first one of the slots on a second side in the circumferential direction as viewed in the axial direction, and
the step of disposing the guide involves disposing the guide such that a gap between adjacent ones of the guide portions in the circumferential direction corresponds to a second width smaller than a first width that is a width of each slot in the circumferential direction.