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:
Mar. 26, 2019
Filed:
Mar. 11, 2016
Applicant:
Johnson Electric International Ag, Murten, CH;
Inventors:
Ping Wo Poon, Hong Kong, CN;
Tian Wen Li, Shenzhen, CN;
Assignee:
JOHNSON ELECTRIC INTERNATIONAL AG, Murten, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K 5/10 (2006.01); H02K 5/02 (2006.01); H02K 1/17 (2006.01); H02K 1/02 (2006.01); H02K 1/04 (2006.01); H02K 11/00 (2016.01);
U.S. Cl.
CPC ...
H02K 1/02 (2013.01); H02K 1/04 (2013.01); H02K 11/00 (2013.01); H02K 5/02 (2013.01);
Abstract
An electric motor includes a stator and a rotor. One of the stator and the rotor includes a magnetic core, preferably an iron core. A reactive metal or a mixture or reactive metals is fixed to the magnetic core. The or each reactive metal has a reactivity greater than the reactivity of the metal of the magnetic core. A rotor and a stator is also provided. By fixing the reactive metal or metal mixture to the magnetic core of the motor, rotor or stator, oxidation and corrosion of the core can be avoided or reduced.