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. 24, 2021
Filed:
Jul. 28, 2016
Applicant:
Mitsubishi Electric Corporation, Tokyo, JP;
Inventors:
Takanori Watanabe, Tokyo, JP;
Koji Yabe, Tokyo, JP;
Assignee:
Mitsubishi Electric Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K 1/27 (2006.01); F24F 1/0007 (2019.01); H02K 7/14 (2006.01); H02K 21/16 (2006.01); H02K 29/03 (2006.01); H02K 1/14 (2006.01);
U.S. Cl.
CPC ...
H02K 1/278 (2013.01); F24F 1/0007 (2013.01); H02K 7/14 (2013.01); H02K 21/16 (2013.01); H02K 29/03 (2013.01); H02K 1/146 (2013.01); H02K 1/276 (2013.01); H02K 2213/03 (2013.01);
Abstract
An electric motor includes a rotor and a stator. The rotor includes a rotor core and a plurality of permanent magnets fixed to an outer surface of the rotor core. The stator includes a stator core including a tooth part and a winding wound around the stator core. The electric motor satisfies an expression of 1<t/t≤8 where tis a minimum distance from a center of a front end surface of the tooth part to one permanent magnet of the plurality of permanent magnets and tis a distance from an end of the tooth part to the one permanent magnet.