Title:
DRIVE DEVICE, AND METHOD FOR MANUFACTURING DRIVE DEVICE
Document Type and Number:
WIPO Patent Application WO/2024/004434
Kind Code:
A1
Abstract:
One embodiment of a drive device of the present invention comprises: a rotary electric machine having a rotor that rotates about a center axis; a gear part that is connected to the rotary electric machine on one axial side of the rotary electric machine; a housing that accommodates the rotary electric machine and the gear part; and a fluid that circulates within the housing. The housing has: a first accommodation part that accommodates the rotary electric machine; a second accommodation part that accommodates the gear part; and a partition wall part located between the first accommodation part and the second accommodation part. Provided in the partition wall part is a through-hole that connects an internal space of the first accommodation part and an internal space of the second accommodation part. The first accommodation part has a bottom section located on the underside of the rotary electric machine. At least a portion of the bottom section radially faces the rotary electric machine, and the bottom section has a first surface and a second surface which are aligned in a circumferential direction. The first surface is located radially outside the second surface. The first surface and the second surface are each inclined radially outward toward one axial side, and are connected on an inside edge of the through-hole at one axial end thereof.
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Inventors:
TAMURA TSUBASA (JP)
NAKAGAWA AYUMI (JP)
NAKAGAWA AYUMI (JP)
Application Number:
PCT/JP2023/018911
Publication Date:
January 04, 2024
Filing Date:
May 22, 2023
Export Citation:
Assignee:
NIDEC CORP (JP)
International Classes:
H02K5/20; H02K9/19
Foreign References:
| JP2021136834A | 2021-09-13 | |||
| JP2022030818A | 2022-02-18 |
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