US 12,176,756 B2
Stator with stator magnet, magnetic body, fixing member, and coil disposed in slots and rotary electric machine using same
Haruyuki Kometani, Tokyo (JP); Ryoji Miyatake, Tokyo (JP); Takuro Yamada, Tokyo (JP); and Kenji Tanaka, Tokyo (JP)
Assigned to MITSUBISHI ELECTRIC CORPORATION, Tokyo (JP)
Appl. No. 17/779,553
Filed by Mitsubishi Electric Corporation, Tokyo (JP)
PCT Filed Jan. 21, 2020, PCT No. PCT/JP2020/001816
§ 371(c)(1), (2) Date May 25, 2022,
PCT Pub. No. WO2021/149131, PCT Pub. Date Jul. 29, 2021.
Prior Publication US 2023/0026553 A1, Jan. 26, 2023
Int. Cl. H02K 1/17 (2006.01); H02K 1/16 (2006.01); H02K 9/19 (2006.01); H02K 16/02 (2006.01)
CPC H02K 1/17 (2013.01) [H02K 1/16 (2013.01); H02K 9/19 (2013.01); H02K 16/02 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A stator comprising:
a stator core including a plurality of stator teeth in a circumferential direction with respect to a center of rotation;
a stator coil disposed on a bottom portion side of each of a plurality of stator slots formed between the stator teeth; and
a stator magnet disposed on an opening side of each of the plurality of stator slots and having the same polarity in a radial direction, wherein
in each of the stator slots, a plate-shaped fixing member is provided between the stator coil and the stator magnet so as to be fitted to opposed two wall surfaces of the stator slot,
a magnetic body is provided between the stator coil and the stator magnet,
two side wall portions extend from the fixing member along the wall surfaces, and
the stator magnet is interposed between the two side wall portions.