Invention Application
- Patent Title: DRIVE DEVICE
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Application No.: US17563437Application Date: 2021-12-28
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Publication No.: US20220209625A1Publication Date: 2022-06-30
- Inventor: Kengo TAKAMURA , Hibiki TAKADA , Shohei FUJIMOTO
- Applicant: Nidec Corporation
- Applicant Address: JP Kyoto
- Assignee: Nidec Corporation
- Current Assignee: Nidec Corporation
- Current Assignee Address: JP Kyoto
- Priority: JP2020-218897 20201228
- Main IPC: H02K9/19
- IPC: H02K9/19 ; H02K5/20 ; H02K7/10

Abstract:
A drive device includes a motor including a rotor rotatable about a central axis, a transmission connected to the motor, and a housing including a motor housing accommodating the motor and a transmission housing accommodating the transmission. A first fluid is accommodated in the transmission housing. The housing includes a first flow path through which the first fluid flows and a second flow path through which the second fluid flows. The first flow path includes a supply flow path that supplies the first fluid in the transmission housing to the inside of the motor housing, and a collection flow path that extends from the inside of the motor housing to the inside of the transmission housing. At least a portion of the second flow path is located radially outside the motor. At least a portion of the collection flow path is located radially outside the second flow path.
Public/Granted literature
- US11863052B2 Drive device Public/Granted day:2024-01-02
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