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:
Apr. 21, 2020
Filed:
Feb. 16, 2018
Applicant:
Nsk Ltd., Tokyo, JP;
Inventors:
Shin Yamamoto, Kanagawa, JP;
Yasuyuki Matsuda, Kanagawa, JP;
Assignee:
NSK LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60K 7/00 (2006.01); B60K 17/04 (2006.01); F16H 57/02 (2012.01); H02K 7/00 (2006.01); H02K 7/116 (2006.01); H02K 11/215 (2016.01); H02K 7/08 (2006.01); B60L 15/00 (2006.01); F16H 3/72 (2006.01);
U.S. Cl.
CPC ...
B60K 7/0007 (2013.01); B60K 7/00 (2013.01); B60K 17/046 (2013.01); B60L 15/00 (2013.01); F16H 3/728 (2013.01); F16H 57/02 (2013.01); H02K 7/006 (2013.01); H02K 7/085 (2013.01); H02K 7/116 (2013.01); H02K 11/215 (2016.01); B60K 2007/0038 (2013.01); B60K 2007/0092 (2013.01); F16H 2057/02034 (2013.01); F16H 2200/0021 (2013.01); Y02T 10/641 (2013.01);
Abstract
An electric vehicle drive device includes: a first motor; a second motor, and a transmission mechanism coupled to the first motor and the second motor and capable of switching a reduction ratio. The transmission mechanism includes a sun gear shaft coupled to the first motor. The first motor includes: a first stator core, a first rotor core disposed radially outward of the first stator core, and a first rotor holding member that couples the first rotor core and the sun gear shaft.