US 12,294,267 B2
Electric rotating machine apparatus and electric power steering apparatus
Naohiro Motoishi, Tokyo (JP); Takahisa Kawaguchi, Tokyo (JP); and Kentaro Urimoto, Tokyo (JP)
Assigned to Mitsubishi Electric Corporation, Tokyo (JP)
Appl. No. 18/015,795
Filed by Mitsubishi Electric Corporation, Tokyo (JP)
PCT Filed Aug. 17, 2020, PCT No. PCT/JP2020/030946
§ 371(c)(1), (2) Date Jan. 12, 2023,
PCT Pub. No. WO2022/038650, PCT Pub. Date Feb. 24, 2022.
Prior Publication US 2023/0318387 A1, Oct. 5, 2023
Int. Cl. H02K 3/50 (2006.01); B62D 5/04 (2006.01); H02K 9/22 (2006.01); H02K 11/01 (2016.01); H02K 11/33 (2016.01)
CPC H02K 3/50 (2013.01) [B62D 5/0406 (2013.01); H02K 9/227 (2021.01); H02K 11/0141 (2020.08); H02K 11/33 (2016.01); H02K 2203/09 (2013.01); H02K 2211/03 (2013.01)] 18 Claims
OG exemplary drawing
 
1. An electric rotating machine apparatus comprising:
an electric rotating machine having a rotation axle;
a circuit board that is disposed at one axial-direction side of the rotation axle with respect to the electric rotating machine and has a first through hole;
a bus bar that has a second through hole and is provided in such a way that one surface thereof makes contact with one surface of the circuit board; and
a bus-bar holder that is provided in contact with the other surface of the bus bar and has a protruding portion that penetrates the first through hole and the second through hole,
wherein the protruding portion has
a columnar portion,
two or more first ribs that are provided on an outer circumferential surface of the columnar portion in such a way as to be parallel with a center axis of the columnar portion and in such a way as to be spaced apart from one another, and
two or more second ribs that are provided on the outer circumferential surface of the columnar portion in such a way as to be parallel with the center axis of the columnar portion and in such a way as to be spaced apart from one another, and
wherein the first ribs abut on an inner circumferential surface of the first through hole in the circuit board and the second ribs abut on an inner circumferential surface of the second through hole in the bus bar.