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:
Oct. 12, 2021

Filed:

Aug. 22, 2018
Applicant:

Mitsuba Corporation, Gunma, JP;

Inventors:

Hiroki Nagase, Gunma, JP;

Hidetake Ota, Gunma, JP;

Assignee:

MITSUBA Corporation, Gunma, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04D 29/54 (2006.01); F04D 29/52 (2006.01); F04D 29/70 (2006.01); F04D 19/00 (2006.01);
U.S. Cl.
CPC ...
F04D 29/541 (2013.01); F04D 29/522 (2013.01); F04D 29/703 (2013.01); F04D 19/002 (2013.01);
Abstract

A blower device includes a motor having an output shaft and a housing; a fan rotationally driven by the motor; and a shroud having a shroud body with a fan installation hole, and a motor mounting part for mounting the motor arranged inside the fan installation hole when viewed in an axial direction of the output shaft. The motor mounting part includes an inner cylinder surrounding a periphery of the motor from a radial outer side of the output shaft; an outer cylinder surrounding the inner cylinder from the radial outer side; and spokes connecting the inner and the outer cylinders. The inner cylinder includes a top wall covering the motor from above while the shroud is fixed. A back end edge of the top wall, which is located on a positive pressure side when the fan is rotated, is located closer to the positive pressure side than the housing.


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