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:
Feb. 05, 2019

Filed:

Mar. 26, 2014
Applicant:

Mitsubishi Electric Corporation, Chiyoda-ku, JP;

Inventors:

Ryuichi Takiguchi, Chiyoda-ku, JP;

Akira Hashimoto, Chiyoda-ku, JP;

Takanori Komatsu, Chiyoda-ku, JP;

Katsunori Oki, Chiyoda-ku, JP;

Satoru Hasegawa, Chiyoda-ku, JP;

Susumu Oshima, Chiyoda-ku, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02K 1/27 (2006.01); H02K 1/14 (2006.01); H02K 15/02 (2006.01); H02K 3/32 (2006.01);
U.S. Cl.
CPC ...
H02K 1/148 (2013.01); H02K 1/2706 (2013.01); H02K 3/325 (2013.01); H02K 15/022 (2013.01); H02K 2213/03 (2013.01); H02K 2213/12 (2013.01);
Abstract

A core segment linked body when opened out rectilinearly is configured: such that a distance between adjacent width reduced portions is greater than a width dimension of width expanded portions when adjacent core segments are in an expanded position, and the distance between the adjacent width reduced portions is less than the width dimension of the width expanded portions when the adjacent core segments are in a contracted position; and so as to satisfy (te−tn)/τs'>0, and 0<(te−tn)/te≤0.27, where τs′ is a distance between center lines of the adjacent magnetic pole teeth in the expanded position, te is a width dimension of tooth main portions, and tn is the width dimension of the width reduced portions.


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