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:
May. 12, 2026

Filed:

Mar. 24, 2021
Applicant:

Fujitsu General Limited, Kanagawa, JP;

Inventors:

Yoichi Tanabe, Kanagawa, JP;

Tomonori Kojima, Kanagawa, JP;

Yosuke Matsui, Kanagawa, JP;

Rei Omata, Kanagawa, JP;

Hiroo Kojima, Kanagawa, JP;

Assignee:

FUJITSU GENERAL LIMITED, Kanagawa, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02K 5/173 (2006.01); F16C 32/04 (2006.01); H02K 1/30 (2006.01); H02K 7/08 (2006.01); H02K 21/14 (2006.01);
U.S. Cl.
CPC ...
H02K 5/1732 (2013.01); F16C 32/047 (2013.01); H02K 1/30 (2013.01); H02K 7/083 (2013.01); H02K 21/14 (2013.01); F16C 2380/26 (2013.01);
Abstract

There is provided a permanent magnet electric motor that can be downsized in a rotation axis direction and can also suppress a leakage flux. The permanent magnet electric motor includes: a columnar rotor including a permanent magnet portion annularly disposed; a shaft disposed along a rotation axis of the rotor; a cylindrical stator core disposed on an outer circumferential side of the rotor; a main body including a shell integrally formed with the stator core; a bracket attached to one end side of the main body; and a bearing that rotatably supports the shaft. The bracket includes a bearing house portion that stores the bearing, and a non-magnetic portion that is connected to the bearing house portion. The bearing house portion is disposed on an inner diameter side relative to the permanent magnet portion as viewed from an axis direction of the rotation axis, and an edge portion of the bearing house portion on an outer diameter side is covered with the non-magnetic portion.


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