US 12,132,371 B2
Stator
Ken Takeda, Kariya (JP); Takashi Matsumoto, Toyota (JP); Takahito Nozawa, Toyota (JP); Junichi Sugawara, Kariya (JP); and Naoki Takahashi, Kariya (JP)
Assigned to DENSO CORPORATION, Kariya (JP); TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP); and AISIN CORPORATION, Kariya (JP)
Filed by DENSO CORPORATION, Kariya (JP); TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP); and AISIN CORPORATION, Aichi (JP)
Filed on May 31, 2022, as Appl. No. 17/828,202.
Claims priority of application No. 2021-090601 (JP), filed on May 28, 2021.
Prior Publication US 2022/0385131 A1, Dec. 1, 2022
Int. Cl. H02K 3/50 (2006.01); H02K 3/38 (2006.01); H02K 3/46 (2006.01); H02K 11/25 (2016.01)
CPC H02K 3/50 (2013.01) [H02K 11/25 (2016.01); H02K 2203/09 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A stator comprising:
a stator core;
a stator winding that is provided in the stator core and includes a plurality of phase windings; and
a neutral-point bus bar that is connected to a coil end portion of the stator winding on an outer side or an inner side in a radial direction of the coil end portion, wherein:
the stator winding is configured by a plurality of segment conductors that are connected;
the coil end portion includes
a first tip end portion in a circumferential direction of a first segment conductor, of the plurality of segment conductors, that extends in a fixed direction in the circumferential direction on an outer side in an axial direction of the stator core, and
a second tip end portion in the circumferential direction of a second segment conductor, of the plurality of segment conductors, that extends in a direction opposite the fixed direction in the circumferential direction,
the first tip end portion and the second tip end portion being joined together;
the neutral-point bus bar includes
a main body portion that extends in the circumferential direction, and
a plurality of connection portions that extend in the radial direction from the main body portion; and
the plurality of connection portions are connected to respective ones of the plurality of phase windings in a state in which the plurality of connection portions do not protrude further towards a side opposite the stator core than the main body portion in the axial direction is.