US 12,476,499 B2
Stator core of rotating electrical machine and rotating electrical machine
Kenichi Nakayama, Hitachinaka (JP); Satoshi Yamamura, Hitachinaka (JP); Shuhei Yamashita, Hitachinaka (JP); Hiroshi Aoki, Hitachinaka (JP); Akihito Toya, Hitachinaka (JP); Mohdbasir Zulaika, Hitachinaka (JP); Hiromitsu Okamoto, Hitachinaka (JP); Zhi Jing, Hitachinaka (JP); and Akira Toba, Hitachinaka (JP)
Assigned to HITACHI ASTEMO, LTD., Hitachinaka (JP)
Appl. No. 18/041,116
Filed by HITACHI ASTEMO, LTD., Hitachinaka (JP)
PCT Filed Jul. 16, 2021, PCT No. PCT/JP2021/026889
§ 371(c)(1), (2) Date Feb. 9, 2023,
PCT Pub. No. WO2022/038945, PCT Pub. Date Feb. 24, 2022.
Claims priority of application No. 2020-140449 (JP), filed on Aug. 21, 2020.
Prior Publication US 2023/0268783 A1, Aug. 24, 2023
Int. Cl. H02K 1/16 (2006.01); H02K 21/14 (2006.01)
CPC H02K 1/16 (2013.01) [H02K 21/14 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A stator core of a rotating electrical machine in which a core back and teeth are formed by laminating a plurality of thin steel plates with an adhesive interposed therebetween, wherein
the stator core includes
a first stator core that is formed by applying the adhesive to a first region covering the core back and the teeth between the plurality of thin steel plates, and
a second stator core that is formed by applying the adhesive to a second region, which has an area smaller than an area of the first region, between the plurality of thin steel plates, and
the first stator core is disposed at least at one end of the second stator core in a laminating direction of the thin steel plates.