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:
Nov. 06, 2018
Filed:
Nov. 15, 2016
Applicant:
Fanuc Corporation, Yamanashi, JP;
Inventor:
Leo Arai, Yamanashi, JP;
Assignee:
FANUC CORPORATION, Yamanashi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K 3/18 (2006.01); H02K 1/27 (2006.01); H02K 1/14 (2006.01); H02K 21/16 (2006.01);
U.S. Cl.
CPC ...
H02K 1/274 (2013.01); H02K 1/146 (2013.01); H02K 3/18 (2013.01); H02K 21/16 (2013.01); H02K 2213/03 (2013.01);
Abstract
A motor according to an embodiment of the present invention includes a rotor having a rotor core and a plurality of magnetic poles including permanent magnets provided in the rotor core; and a stator having a stator core in which a plurality of teeth disposed on the side of the outer periphery of the rotor so as to be opposed to the plurality of magnetic poles and slots for containing armature winding wound around the plurality of teeth are formed. The rotor is structured such that the distance r(θ) between the center of the rotor and the outer periphery thereof satisfies the following equations (1) and (2):