US 11,888,370 B2
Stator, motor, compressor, air conditioner, and manufacturing method of stator
Atsushi Matsuoka, Tokyo (JP); Koji Yabe, Tokyo (JP); and Toshio Arai, Tokyo (JP)
Assigned to Mitsubishi Electric Corporation, Tokyo (JP)
Appl. No. 17/273,873
Filed by Mitsubishi Electric Corporation, Tokyo (JP)
PCT Filed Oct. 30, 2018, PCT No. PCT/JP2018/040240
§ 371(c)(1), (2) Date Mar. 5, 2021,
PCT Pub. No. WO2020/089994, PCT Pub. Date May 7, 2020.
Prior Publication US 2021/0320546 A1, Oct. 14, 2021
Int. Cl. H02K 3/28 (2006.01); H02K 15/02 (2006.01); F04C 18/02 (2006.01); F04C 29/00 (2006.01); F25B 31/02 (2006.01); H02K 1/16 (2006.01); H02K 3/02 (2006.01); H02K 3/34 (2006.01); H02K 3/48 (2006.01); H02K 15/00 (2006.01); H02K 15/06 (2006.01)
CPC H02K 3/28 (2013.01) [F04C 18/0207 (2013.01); F04C 29/0085 (2013.01); F25B 31/02 (2013.01); H02K 1/165 (2013.01); H02K 3/02 (2013.01); H02K 3/345 (2013.01); H02K 3/48 (2013.01); H02K 15/0081 (2013.01); H02K 15/024 (2013.01); H02K 15/065 (2013.01); F04C 2240/102 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A stator comprising:
a stator core having a plurality of slots in a circumferential direction about an axis, the stator core having an end surface in a direction of the axis; and
a first coil and a second coil each wound on the stator core in distributed winding, the first coil and the second coil being of different phases,
wherein a winding factor is 1;
wherein each of the first coil and the second coil has winding portions, the number of which corresponds to the number of poles;
wherein the winding portions, the number of which corresponds to the number of poles, include a first winding portion and a second winding portion that are adjacent to each other in the circumferential direction;
wherein the first winding portion and the second winding portion are inserted into one slot of the plurality of slots and extend from the one slot to both sides in the circumferential direction on the end surface;
wherein the first coil and the second coil are annularly disposed in different positions in a radial direction about the axis on the end surface of the stator core; and
wherein the first winding portion is disposed on an outer side in the radial direction with respect to the second winding portion.