Title:
DRIVE DEVICE
Document Type and Number:
WIPO Patent Application WO/2024/070228
Kind Code:
A1
Abstract:
One aspect of a drive device according to the present invention comprises a rotor, a stator, a housing, a bearing, and a bearing holder that is located on one side in the axial direction of the stator and that holds the bearing. The housing includes a cylindrical inner tube section centered on the central axis, and an outer tube section. A flow path section is provided between the inner tube section and the outer tube section. The bearing holder includes: a disc-shaped body section centered on the central axis; a bearing holding part that holds the bearing; a first fastening part fixed to the inner tube section; and a protruding part that protrudes toward the other side in the axial direction from the surface of the body section facing the other side in the axial direction. The protruding part extends in the circumferential direction running along an imaginary circle centered on the central axis when viewed from the axial direction, and fits to the inner circumferential surface of the inner tube section. A first through hole, through which a lead wire extending from a stator coil is passed, is provided in the body section. The first through hole is disposed on an imaginary circle when viewed from the axial direction.
Inventors:
ASO KEISUKE (JP)
WADA NAOHIRO (JP)
MAKINO YUSUKE (JP)
WADA NAOHIRO (JP)
MAKINO YUSUKE (JP)
Application Number:
PCT/JP2023/028529
Publication Date:
April 04, 2024
Filing Date:
August 04, 2023
Export Citation:
Assignee:
NIDEC CORP (JP)
International Classes:
H02K5/22; H02K5/20
Domestic Patent References:
| WO2021166298A1 | 2021-08-26 | |||
| WO2018030479A1 | 2018-02-15 | |||
| WO2018139497A1 | 2018-08-02 |
Foreign References:
| JP2020054149A | 2020-04-02 | |||
| JP2020054162A | 2020-04-02 | |||
| JP2018126041A | 2018-08-09 | |||
| JP2004147449A | 2004-05-20 | |||
| JP2014166067A | 2014-09-08 |
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