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.

Date of Patent:
Apr. 16, 2024

Filed:

Oct. 01, 2020
Applicant:

Lg Innotek Co., Ltd., Seoul, KR;

Inventor:

Il Sik Won, Seoul, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K 1/2726 (2022.01); F16H 3/00 (2006.01); F16H 3/091 (2006.01); H02K 1/2733 (2022.01); H02K 1/30 (2006.01);
U.S. Cl.
CPC ...
H02K 1/2726 (2013.01); H02K 1/2733 (2013.01); H02K 1/30 (2013.01); F16H 3/006 (2013.01); F16H 3/091 (2013.01);
Abstract

The present invention discloses a motor comprising: a stator part; and a rotor assembly rotatably disposed with respect to the stator part, wherein the rotor assembly comprises: a ring magnet including an insertion hole with a shaft disposed therein and a plurality of first grooves formed at one side thereof along a first imaginary circle; and a core member including a body portion disposed between the shaft and the insertion hole, and an extension portion covering the plurality of first grooves, wherein the extension portion comprises a plurality of second grooves deviated from a plurality of first imaginary straight lines which pass from a center of the first imaginary circle respectively through the plurality of first grooves.


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