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:
Feb. 16, 2021
Filed:
Dec. 21, 2018
Applicant:
Delta Electronics, Inc., Taoyuan, TW;
Inventor:
Cheng-Wei Chen, Taoyuan, TW;
Assignee:
DELTA ELECTRONICS, INC., Taoyuan, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04D 29/62 (2006.01); F04D 29/28 (2006.01); F04D 17/08 (2006.01); F04D 25/06 (2006.01); F04D 17/16 (2006.01);
U.S. Cl.
CPC ...
F04D 29/626 (2013.01); F04D 17/08 (2013.01); F04D 17/161 (2013.01); F04D 25/0613 (2013.01); F04D 29/281 (2013.01);
Abstract
A fan includes a frame, an impeller, and a motor. The impeller is disposed in the frame and includes a hub, a plurality of annular blades, and a plurality of spacers. The annular blades are stacked along an axial direction of the hub and disposed around the outer periphery of the hub. The extension directions of the annular blades are perpendicular to the axial direction of the hub. Each of the spacers is disposed between the two adjacent annular blades. The motor is disposed in the frame and drives the impeller to rotate to induce an airflow. The thickness of each annular blade is smaller than or equals to 0.2 mm.