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. 31, 2021
Filed:
Feb. 15, 2016
Applicant:
Mitsubishi Electric Corporation, Tokyo, JP;
Inventors:
Assignee:
MITSUBISHI ELECTRIC CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02K 3/12 (2006.01); H02K 1/26 (2006.01); H02K 17/16 (2006.01); H02K 3/48 (2006.01); H02K 3/52 (2006.01); H02K 1/16 (2006.01); H02K 1/22 (2006.01);
U.S. Cl.
CPC ...
H02K 3/12 (2013.01); H02K 1/265 (2013.01); H02K 17/165 (2013.01); H02K 1/165 (2013.01); H02K 1/22 (2013.01); H02K 3/48 (2013.01); H02K 3/527 (2013.01); H02K 2213/03 (2013.01);
Abstract
A three-phase induction motor includes: a stator having a stator slot having an open slot structure for inserting a formed coil; and a rotor having a rotor slot into which a conductor bar is inserted, the rotor being placed on an inner side of the stator with a clearance between the rotor and the stator. The conductor bar has a polygonal cross-sectional shape having six or more angles, and both end portions of an outer-circumference-side edge surface of the conductor bar are rounded.