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:
Apr. 16, 2019

Filed:

Mar. 27, 2014
Applicant:

Minebea Co., Ltd., Kitasaku-gun, Nagano, JP;

Inventor:

Toru Narita, Kitasaku-gun, JP;

Assignee:

MINEBEA CO., LTD., Kitasaku-gun, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K 5/08 (2006.01); F04D 25/06 (2006.01); H02K 5/128 (2006.01);
U.S. Cl.
CPC ...
F04D 25/0613 (2013.01); F04D 25/062 (2013.01); F04D 25/0646 (2013.01); H02K 5/08 (2013.01); H02K 5/128 (2013.01); H02K 2211/03 (2013.01); Y10T 29/49009 (2015.01);
Abstract

A fan includes: a casing including a substantially cup-shaped base portion connected to an outer frame through a rib, the base portion having a top surface located on a upper side of an axial direction and a lower opening located on a lower side of the axial direction; a bearing housing hanging down from a center of the top surface of the base portion toward the lower opening; a stator housing portion formed by the base portion and the bearing housing; a stator having a circuit board disposed in the stator housing portion by being fitted to an outer peripheral surface of the bearing housing; bearings fitted to an inner peripheral surface of the bearing housing; an impeller rotating around a shaft as a central axis, shaft being rotatably supported by the bearings; and an insulating material filling the stator housing portion to cover the stator and the circuit board.


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