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.:
Date of Patent:
Mar. 06, 2018
Filed:
Mar. 13, 2014
Nidec Corporation, Kyoto, JP;
Takehito Tamaoka, Kyoto, JP;
Hiroaki Hirano, Kyoto, JP;
NIDEC CORPORATION, Kyoto, JP;
Abstract
A stationary portion of a blower fan according to a preferred embodiment of the present invention includes a stator and a stator holding portion to which the stator is fixed. A rotating portion of the blower fan includes an annular rotor hub portion arranged around a central axis; a rotor magnet arranged along a circumferential surface of the rotor hub portion, and arranged radially inside a stator; and an impeller including a plurality of blades arranged along a circumferential direction of the rotor hub portion. An upper end of the stator is arranged at a level lower than that of an upper end of the rotor magnet. The impeller is arranged axially above the rotor magnet and is arranged to extend radially outward. The blades are arranged axially above the stator.