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:
Jan. 26, 2021
Filed:
Sep. 05, 2017
Applicant:
Lg Innotek Co., Ltd., Seoul, KR;
Inventors:
Shung Hun Woo, Seoul, KR;
Nam Hoon Kim, Seoul, KR;
Assignee:
LG INNOTEK CO., LTD., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K 29/08 (2006.01); H02K 11/215 (2016.01); H02K 11/27 (2016.01); G01D 5/245 (2006.01); G01D 5/14 (2006.01);
U.S. Cl.
CPC ...
H02K 29/08 (2013.01); G01D 5/142 (2013.01); G01D 5/145 (2013.01); G01D 5/2451 (2013.01); H02K 11/215 (2016.01); G01D 5/2452 (2013.01); G01D 5/2457 (2013.01); H02K 2213/03 (2013.01);
Abstract
A motor for sensing a rotor location is provided, the motor comprising a shaft, a sensing magnet including a main magnet and a sub-magnet coupled to the shaft and a substrate disposed on the sensing magnet. The substrate includes a plurality of first hall sensors and a plurality of second hall sensors spaced apart from the shaft by a first distance, and a plurality of third hall sensors and a plurality of fourth hall sensors spaced apart from the shaft by a second distance larger than the first distance.