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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.:

US 11608883 B1

PDFFull Text
Date of Patent:
Mar. 21, 2023

Filed:

Mar. 04, 2022

Drive device

Applicant:

Nidec Corporation, Kyoto, JP;

Inventors:

Keisuke Nakata, Kyoto, JP;

Yuki Ishikawa, Kyoto, JP;

Assignee:

NIDEC CORPORATION, Kyoto, JP;

Attorney:

Hauptman Ham, LLP

Primary Examiner:

Vinh Luong

Int. Cl.
CPC ...
F16H 57/04 (2010.01); F16H 1/22 (2006.01); F16H 57/02 (2012.01); H02K 5/15 (2006.01); H02K 5/20 (2006.01); H02K 7/08 (2006.01); H02K 7/116 (2006.01); H02K 9/19 (2006.01); B60K 1/00 (2006.01);
U.S. Cl.
CPC ...
F16H 57/0424 (2013.01); F16H 1/22 (2013.01); F16H 57/02 (2013.01); F16H 57/0471 (2013.01); F16H 57/0476 (2013.01); H02K 5/15 (2013.01); H02K 5/203 (2021.01); H02K 7/083 (2013.01); H02K 7/116 (2013.01); H02K 9/19 (2013.01); B60K 2001/001 (2013.01); F16H 2057/02034 (2013.01); F16H 2057/02052 (2013.01); H02K 2207/03 (2013.01);
Abstract

A drive device includes a first shaft, a gear portion, a lubricant flow path, and a housing. A gear portion having a second shaft is connected to an end portion of the first shaft in the axial direction. A side plate portion of the housing separates a motor tubular portion surrounding a motor accommodation portion that accommodates a rotor and a stator and a gear tubular portion surrounding a gear accommodation portion that accommodates the gear portion. First and second bearing holding portions disposed in the side plate portion rotatably support the first and second shafts via the first and second bearings, respectively. A lubricant supply portion that is disposed radially outward of the stator and supplies lubricant to the stator includes a lubricant flow path through which lubricant can flow. The lubricant flow path is connected to at least one of the first and second bearing holding portions.

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