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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 10591031 B1

PDFFull Text
Date of Patent:
Mar. 17, 2020

Filed:

Feb. 02, 2018

Electric actuator

Applicant:

Nidec Tosok Corporation, Zama-shi, Kanagawa, JP;

Inventors:

Yutaka Uematsu, Zama, JP;

Shuichi Kinjo, Zama, JP;

Assignee:

NIDEC TOSOK CORPORATION, Kanagawa, JP;

Attorney:

Keating & Bennett

Primary Examiner:

Naishadh N Desai

Int. Cl.
CPC ...
H02K 11/21 (2016.01); F16H 25/20 (2006.01); F16H 61/26 (2006.01); H02K 7/06 (2006.01); H02K 5/173 (2006.01); H02K 7/116 (2006.01); H02K 11/215 (2016.01); F16H 59/10 (2006.01); F16H 61/12 (2010.01); H02K 5/22 (2006.01); F16H 61/32 (2006.01); F16H 1/32 (2006.01);
U.S. Cl.
CPC ...
F16H 25/2015 (2013.01); F16H 59/105 (2013.01); F16H 61/12 (2013.01); F16H 61/26 (2013.01); H02K 5/1732 (2013.01); H02K 7/06 (2013.01); H02K 7/116 (2013.01); H02K 11/21 (2016.01); H02K 11/215 (2016.01); F16H 2001/325 (2013.01); F16H 2025/2031 (2013.01); F16H 2061/326 (2013.01); H02K 5/225 (2013.01);
Abstract

There is provided an electric actuator including: a motor that has a motor shaft, a speed reduction mechanism, an output portion that has an output shaft portion, a rotation detection device, and a first bearing. The output shaft portion extends in an axial direction and is disposed on one side in the axial direction of the motor shaft. The output portion has a first recessed portion recessed from the other side to the one side in the axial direction. An end portion of the motor shaft on the one side in the axial direction is accommodated in the first recessed portion. The first bearing is fixed to an inside surface of the first recessed portion in a radial direction. At least a portion of the rotation detection device is disposed at a position overlapping the first recessed portion in the radial direction.

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