US 12,074,491 B2
Motor with a shaft fixing portion
Mitsuhiro Takemoto, Kyoto (JP); and Shinji Takemoto, Kyoto (JP)
Assigned to NIDEC CORPORATION, Kyoto (JP)
Filed by NIDEC CORPORATION, Kyoto (JP)
Filed on Jun. 14, 2022, as Appl. No. 17/839,487.
Claims priority of application No. 2021-099270 (JP), filed on Jun. 15, 2021.
Prior Publication US 2022/0399773 A1, Dec. 15, 2022
Int. Cl. H02K 3/50 (2006.01); H02K 5/173 (2006.01); H02K 7/08 (2006.01); H02K 21/22 (2006.01)
CPC H02K 3/50 (2013.01) [H02K 5/1735 (2013.01); H02K 7/085 (2013.01); H02K 21/22 (2013.01); H02K 2203/06 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A motor comprising:
a rotor including a shaft having a tubular shape, the shaft rotating about a central axis extending in a vertical direction;
a bearing located radially outward of the shaft and rotatably supporting the shaft;
a stationary portion including a stator located radially outward of the bearing; and
a lead wire electrically connected to the stator,
wherein the stationary portion includes
a housing that is located radially outward of the bearing and radially inward of the stator, supports the bearing, and supports the stator,
a base portion that is located axially below the stator and to which the housing is fixed, and
a fixing member fixed to the base portion,
the fixing member includes a cover portion located to cover a shaft lower end portion located at an axially lower end of the shaft when viewed from axially below,
the cover portion has an opening portion that opens in an axial direction, and
the opening portion is located radially more inside than an inner peripheral surface of the shaft when viewed from axially below.