Title:
ROTATING ELECTRIC MACHINE AND DRIVE DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/180876
Kind Code:
A1
Abstract:
Provided are a rotating electric machine in which the efficiency of cooling a rotor and a stator is improved and a drive device. The rotating electric machine 10 comprises a rotor 30 having a shaft 1 in which an oil O can internally circulate and a stator located outside the rotor 30 in the radial direction. The shaft 1 comprises: a cylindrical shaft body 2 having a plurality of first side holes; a cylindrical body 5 inserted into one side of the shaft body 2 in the axis J direction, having a plurality of second side holes 52, and having a flange portion 57 that makes contact with one side surface of the shaft body 2 in the axis J direction in an attachment state in which the cylindrical body 5 is attached to the shaft body 2; and a fixing portion for fixing the cylindrical body 5 to the shaft body 2. The plurality of first side holes and the plurality of second side holes are connected with each other in the attachment state and function as a flow path through which the oil O can pass.
Inventors:
MAEDA SHIGERU (JP)
SASAKI RYOMA (JP)
FUKUDA AOI (JP)
BANDO TAKAAKI (JP)
SASAKI RYOMA (JP)
FUKUDA AOI (JP)
BANDO TAKAAKI (JP)
Application Number:
PCT/JP2021/022351
Publication Date:
September 01, 2022
Filing Date:
June 11, 2021
Export Citation:
Assignee:
NIDEC CORP (JP)
International Classes:
H02K9/19; F16H57/04
Foreign References:
| JP2016014445A | 2016-01-28 | |||
| JPH09150346A | 1997-06-10 |
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