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:
Aug. 04, 2015
Filed:
Aug. 02, 2011
Applicants:
Bao Ting Liu, Shenzhen, CN;
Ji Cheng Pan, Shenzhen, CN;
Xu Hai Wei, Shenzhen, CN;
Inventors:
Assignee:
Johnson Electric S.A., Murten, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K 23/64 (2006.01); H02K 23/40 (2006.01);
U.S. Cl.
CPC ...
H02K 23/40 (2013.01); H02K 23/64 (2013.01); H02K 2213/03 (2013.01);
Abstract
A universal motor includes a wound rotor and a stator. The stator has stator windings and a stator code. The stator core has at least two poles with the stator windings wound thereon and a yoke connecting the poles. Each pole has a neck and a pole shoe forming a continuous pole arc facing the rotor. The ratio of the diameter of the motor to the width of the stator core measured across the poles is between 0.65˜0.95.