Title:
DRIVE DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/188620
Kind Code:
A1
Abstract:
One aspect of a drive device according to the present invention includes a motor including a rotor that can rotate around a central axis and a stator facing the rotor across a gap in a radial direction, a fan that rotates with the rotor, and a housing accommodating the motor. The stator includes an annular stator core and a coil mounted on the stator core. The coil includes a pair of coil ends respectively protruding in the axial direction from the end faces of the stator core at opposite sides thereof in the axial direction. The housing includes a water jacket externally surrounding the stator in the radial direction. The water jacket is provided with a plurality of fins on an inner circumferential surface of the water jacket, the fins being disposed on the outside of the coil ends in the radial direction. The fan includes an outlet that opens outward in the radial direction. The outlet, the coil ends, and the fins are juxtaposed in the radial direction.
More Like This:
| WO/1987/000704 | GENERATOR ROTOR COOLING |
Inventors:
TSUJIMOTO KENTO (JP)
MAKINO YUSUKE (JP)
ASO KEISUKE (JP)
WADA NAOHIRO (JP)
MAKINO YUSUKE (JP)
ASO KEISUKE (JP)
WADA NAOHIRO (JP)
Application Number:
PCT/JP2022/047297
Publication Date:
October 05, 2023
Filing Date:
December 22, 2022
Export Citation:
Assignee:
NIDEC CORP (JP)
International Classes:
H02K5/20; H02K9/19
Foreign References:
| CN102780319A | 2012-11-14 | |||
| JP2013013225A | 2013-01-17 | |||
| JPH07177703A | 1995-07-14 | |||
| JPH09233767A | 1997-09-05 | |||
| JP2020150608A | 2020-09-17 | |||
| JPH04137470U | 1992-12-22 |
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