US 12,034,356 B2
Motor
Yusuke Makino, Kyoto (JP); Riku Konishi, Kyoto (JP); and Tatsuki Shigeta, Kyoto (JP)
Assigned to NIDEC CORPORATION, Kyoto (JP)
Appl. No. 17/311,689
Filed by NIDEC CORPORATION, Kyoto (JP)
PCT Filed Nov. 22, 2019, PCT No. PCT/JP2019/045864
§ 371(c)(1), (2) Date Jun. 8, 2021,
PCT Pub. No. WO2020/137291, PCT Pub. Date Jul. 2, 2020.
Claims priority of application No. 2018-241474 (JP), filed on Dec. 25, 2018.
Prior Publication US 2022/0029504 A1, Jan. 27, 2022
Int. Cl. H02K 5/26 (2006.01); H02K 3/52 (2006.01); H02K 5/173 (2006.01); H02K 11/215 (2016.01); H02K 21/16 (2006.01)
CPC H02K 5/26 (2013.01) [H02K 3/522 (2013.01); H02K 5/1732 (2013.01); H02K 11/215 (2016.01); H02K 21/16 (2013.01); H02K 2203/09 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A motor comprising:
a rotor configured to rotate about a central axis;
a stator disposed radially opposite the rotor with a clearance defined between the stator and the rotor;
a housing accommodating the rotor and the stator;
a bearing supporting the rotor in a rotatable manner;
a bearing holder holding the bearing,
the bearing holder being fixed to the housing;
a rotation sensor configured to detect rotation of the rotor;
a sensor holder disposed in the bearing holder to hold the rotation sensor, wherein the sensor holder includes a wire holding portion holding a wire electrically connected to the rotation sensor; and
a position adjustment mechanism configured to adjust a circumferential position of the rotation sensor by integrally rotating the bearing holder and the sensor holder relative to the housing in a circumferential direction, wherein
the rotor includes:
a shaft disposed along the central axis; and
a rotor main body fixed to an outer peripheral face of the shaft,
the sensor holder includes a fixed tube portion surrounding the central axis and fixed to the bearing holder,
the wire holding portion includes a first portion protruding radially outward from the fixed tube portion, and
the first portion is located between the rotor main body and the wire in an axial direction.