Title:
ROTARY ELECTRIC MACHINE
Document Type and Number:
WIPO Patent Application WO/2023/243316
Kind Code:
A1
Abstract:
In the present invention, one embodiment of a drive device comprises: a rotor having a shaft that extends along a center axis line; a stator opposing the rotor with a gap therebetween; a housing accommodating the rotor and the stator; and a resolver having a resolver rotor fixed to the shaft, and a resolver stator located radially outside the resolver rotor. The housing has a lateral wall part located axially on one side of the rotor. The lateral wall part has a tubular section inside which the resolver stator is held. The tubular section has: a first inner circumferential surface surrounding an outer circumferential surface of the resolver stator; a first surface that is connected to an end on one axial side of the first inner circumferential surface, and that faces the one axial side; a second surface that is connected to an end on the other axial side of the first inner circumferential surface, and that faces the other axial side; and one or more crimping sections provided to the first surface. The one or more crimping sections include a stopper part that protrudes radially inward with respect to the outer circumferential surface of the resolver stator and that makes contact with an end surface on one axial side of the resolver stator.
Inventors:
MATSUZAKI RYOSUKE (JP)
Application Number:
PCT/JP2023/018893
Publication Date:
December 21, 2023
Filing Date:
May 22, 2023
Export Citation:
Assignee:
NIDEC CORP (JP)
International Classes:
H02K24/00; H02K5/173; H02K5/20; H02K9/19
Foreign References:
| JP2008182852A | 2008-08-07 | |||
| JP2021136834A | 2021-09-13 | |||
| JP2016220285A | 2016-12-22 | |||
| JP2008011661A | 2008-01-17 | |||
| JP2015094712A | 2015-05-18 |
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