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.

Date of Patent:
Mar. 17, 2015

Filed:

Apr. 05, 2010
Applicants:

Keiichiro Oka, Tokyo, JP;

Hiroyuki Akita, Tokyo, JP;

Toshio Arai, Tokyo, JP;

Inventors:

Keiichiro Oka, Tokyo, JP;

Hiroyuki Akita, Tokyo, JP;

Toshio Arai, Tokyo, JP;

Assignee:

Mitsubishi Electric Corporation, Chiyoda-Ku, Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02K 3/34 (2006.01); H02K 3/52 (2006.01); H02K 3/32 (2006.01); H02K 1/14 (2006.01);
U.S. Cl.
CPC ...
H02K 3/522 (2013.01); H02K 3/325 (2013.01); H02K 1/148 (2013.01); H02K 2203/12 (2013.01);
Abstract

Included are a pair of insulators arranged on axial end surfaces of a split core, and an insulating film attached to lateral side surfaces of the tooth part, for insulating the split core from a coil wound around the tooth part. Each insulator includes projections projecting further than a tooth front end part in the circumferential direction, slits which are formed in the respective projections to a corresponding axial end surface side of the tooth front end part and into which the insulating film is inserted, and ribs formed, on an end surface side in the circumferential direction, in the respective projections. The insulating film inserted into the slits is folded back to a back yoke part side with the ribs interposed therein, and fixed by being interposed between the ribs at tip portions of projections of adjacent insulators. Accordingly, the insulating film can be assuredly fixed and prevented from escaping from a slot.


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