Invention Grant
- Patent Title: Motor
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Application No.: US16323906Application Date: 2017-08-01
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Publication No.: US10910918B2Publication Date: 2021-02-02
- Inventor: Shuhei Nakamatsu , Yuki Ishikawa , Takayuki Migita
- Applicant: Nidec Corporation
- Applicant Address: JP Kyoto
- Assignee: Nidec Corporation
- Current Assignee: Nidec Corporation
- Current Assignee Address: JP Kyoto
- Agency: Keating & Bennett
- Priority: JP2017-073137 20170331
- International Application: PCT/JP2017/027893 WO 20170801
- International Announcement: WO2018/030218 WO 20180215
- Main IPC: H02K9/19
- IPC: H02K9/19 ; H02K1/30 ; H02K1/32 ; H02K21/16 ; H02K7/116 ; B60T1/00 ; F16D63/00

Abstract:
A motor includes a rotor to rotate about a motor axis, and a stator radially outside of the rotor. The rotor includes a shaft extending along the motor axis, a rotor core surrounding the shaft from radially outside, a plate-shaped end plate at an axial end portion of the rotor core, and a cover portion at the axial end portion of the rotor core with the end plate intervening between the cover portion and the rotor core. The end plate includes a plate through hole extending in an axial direction, a first recessed portion extending radially inward from the plate through hole, and a second recessed portion extending radially outward from the plate through hole. The first recessed portion opens radially inward in the end plate. The first recessed portion includes an axially-facing opening covered with the rotor core. The second recessed portion includes an axially-facing opening including a covered portion covered with the cover portion, and an open portion not covered with the cover portion.
Public/Granted literature
- US20190181724A1 MOTOR Public/Granted day:2019-06-13
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