The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 05, 2025
Filed:
Mar. 09, 2023
Applicant:
Nidec Corporation, Kyoto, JP;
Inventors:
Yasuo Yamaguchi, Kyoto, JP;
Yuki Ishikawa, Kyoto, JP;
Assignee:
NIDEC CORPORATION, Kyoto, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K 9/19 (2006.01); F16H 57/04 (2010.01); F16N 31/00 (2006.01); H02K 5/04 (2006.01); H02K 7/116 (2006.01);
U.S. Cl.
CPC ...
H02K 7/116 (2013.01); F16H 57/0421 (2013.01); F16N 31/00 (2013.01); H02K 5/04 (2013.01); H02K 9/19 (2013.01);
Abstract
A motor unit includes a motor including a rotor to rotate about a motor axis, and a stator radially outside of the rotor, a reduction gear connected to the motor, a differential connected to the motor through the reduction gear, a housing including a housing space to house the motor, the reduction gear, and the differential, and an oil passage to lead an oil to the motor. The oil passage includes an electric pump and a cooler. The electric pump and the cooler are fixed to the housing. The electric pump includes a portion located vertically below the cooler.