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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 9705443 B1

PDFFull Text
Date of Patent:
Jul. 11, 2017

Filed:

Mar. 19, 2015

Motor, electric power steering device, and vehicle

Applicant:

Nsk Ltd., Tokyo, JP;

Inventors:

Yusuke Kikuchi, Kanagawa, JP;

Gen Kimura, Kanagawa, JP;

Zhipeng Tu, Kanagawa, JP;

Assignee:

NSK LTD., Tokyo, JP;

Attorney:

Sughrue Mion, PLC

Primary Examiner:

Thanh Lam

Int. Cl.
CPC ...
H02K 1/00 (2006.01); H02P 25/22 (2006.01); H02K 1/14 (2006.01); H02K 1/27 (2006.01); H02K 3/28 (2006.01); H02K 7/116 (2006.01); H02K 11/24 (2016.01); H02P 27/08 (2006.01); H02P 6/10 (2006.01); B62D 5/04 (2006.01); B62D 6/10 (2006.01); B62D 6/02 (2006.01);
U.S. Cl.
CPC ...
H02P 25/22 (2013.01); B62D 5/0463 (2013.01); B62D 6/02 (2013.01); B62D 6/10 (2013.01); H02K 1/146 (2013.01); H02K 1/2706 (2013.01); H02K 3/28 (2013.01); H02K 7/1166 (2013.01); H02K 11/24 (2016.01); H02P 6/10 (2013.01); H02P 27/08 (2013.01);
Abstract

A motor includes an annular stator core including teeth arranged side by side in a circumferential direction on an inner circumferential surface of a back yoke. The motor includes 3n (n is an integer) first coil groups arranged in the circumferential direction at regular intervals, each of the first coil groups being constituted of first coils that are respectively wound, in a concentrated manner, around the teeth arranged adjacent to one another, and that are excited by a first inverter, and also includes 3n second coil groups arranged in the circumferential direction at regular intervals, each of the second coil groups being constituted of second coils that are respectively wound, in a concentrated manner, around the teeth arranged adjacent to one another in positions different from positions of the teeth around which the first coils are wound in a concentrated manner, and that are excited by a second inverter.

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