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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.:

US 9742242 B1

PDFFull Text
Date of Patent:
Aug. 22, 2017

Filed:

Oct. 10, 2012

Rotary electric machine including a stator coil end cooling construction and rotor with dual fan blades

Applicants:

Norihiro Watanabe, Chiyoda-ku, JP;

Masao Morita, Chiyoda-ku, JP;

Yoshihiro Miyama, Chiyoda-ku, JP;

Moriyuki Hazeyama, Chiyoda-ku, JP;

Hideaki Arita, Chiyoda-ku, JP;

Inventors:

Norihiro Watanabe, Chiyoda-ku, JP;

Masao Morita, Chiyoda-ku, JP;

Yoshihiro Miyama, Chiyoda-ku, JP;

Moriyuki Hazeyama, Chiyoda-ku, JP;

Hideaki Arita, Chiyoda-ku, JP;

Assignee:

MITSUBISHI ELECTRIC CORPORATION, Tokyo, JP;

Attorney:

Oblon, McClelland, Maier & Neustadt, L.L.P.

Primary Examiner:

Michael Andrews

Assistant Examiner:

Maged Almawri

Int. Cl.
CPC ...
H02K 1/27 (2006.01); H02K 9/06 (2006.01); H02K 3/24 (2006.01); H02K 3/52 (2006.01); H02K 5/20 (2006.01); H02K 9/08 (2006.01); H02K 11/33 (2016.01); H02K 9/04 (2006.01); H02K 9/02 (2006.01); H02K 9/00 (2006.01); H02K 9/19 (2006.01);
U.S. Cl.
CPC ...
H02K 9/06 (2013.01); H02K 1/2706 (2013.01); H02K 3/24 (2013.01); H02K 3/522 (2013.01); H02K 5/20 (2013.01); H02K 9/08 (2013.01); H02K 11/33 (2016.01); H02K 9/005 (2013.01); H02K 9/02 (2013.01); H02K 9/04 (2013.01); H02K 9/19 (2013.01); H02K 2203/03 (2013.01); H02K 2203/12 (2013.01);
Abstract

In a rotary electric machine, first inclined surfaces that intersect a plane that includes a central axis of a shaft at a predetermined angle are disposed radially outside gaps between coil ends of circumferentially adjacent concentrated winding coils, and cooling air that is blown out from a cooling fan and has flowed radially outward through the gaps between the coil ends is converted into an axially outward flow by the first inclined surfaces.

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