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:
Oct. 29, 2019
Filed:
Aug. 29, 2016
Applicant:
Johnson Electric S.a., Murten, CH;
Inventors:
Assignee:
Johnson Electric International AG, Murten, CH;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02K 29/03 (2006.01); H02K 1/14 (2006.01); H02K 19/04 (2006.01); H02K 1/27 (2006.01);
U.S. Cl.
CPC ...
H02K 1/148 (2013.01); H02K 1/146 (2013.01); H02K 1/278 (2013.01); H02K 19/04 (2013.01); H02K 29/03 (2013.01); H02K 2213/03 (2013.01);
Abstract
A single phase permanent magnet motor includes a stator. The stator includes a stator core and windings. The stator core includes a ring portion, tooth bodies extending radially from the ring portion, and a pole shoe extending from a distal end to two circumferential sides of each tooth body. Each pole shoe defines a positioning slot. A center of each positioning slot is offset from a center of symmetry of one adjacent tooth body so that a torque fluctuation of an output torque of the single phase permanent magnet motor during operation is less than 50%. As a result, the motor vibration and noise are small.