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:
Jun. 10, 2019
Applicants:
Inventec (Pudong) Technology Corporation, Shanghai, CN;
Inventec Corporation, Taipei, TW;
Inventors:
Chih-Kai Yang, Taipei, TW;
Yi-Lun Cheng, Taipei, TW;
Assignees:
INVENTEC (PUDONG) TECHNOLOGY CORPORATION, Shanghai, CN;
INVENTEC CORPORATION, Taipei, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F28D 15/02 (2006.01); G06F 1/20 (2006.01); H05K 7/20 (2006.01); F04D 1/04 (2006.01); F04D 29/44 (2006.01); F04D 29/00 (2006.01); F04D 29/04 (2006.01); F04D 29/28 (2006.01); F04D 15/00 (2006.01); H01L 23/427 (2006.01); F04D 29/58 (2006.01); H01L 23/467 (2006.01); F04D 29/42 (2006.01);
U.S. Cl.
CPC ...
F28D 15/0275 (2013.01); F04D 1/04 (2013.01); F04D 15/0066 (2013.01); F04D 29/002 (2013.01); F04D 29/04 (2013.01); F04D 29/281 (2013.01); F04D 29/441 (2013.01); F04D 29/584 (2013.01); G06F 1/20 (2013.01); G06F 1/203 (2013.01); H01L 23/427 (2013.01); H01L 23/467 (2013.01); H05K 7/20145 (2013.01); H05K 7/20336 (2013.01); F04D 29/4226 (2013.01); G06F 2200/201 (2013.01); H05K 7/20172 (2013.01);
Abstract
A cooling fan includes a base, a tube, a bearing, a stator, a rotor, and fan blades. The base includes a base protrusion. Each of the fan blades includes a first notch. When the cooling fan is working, the base protrusion passes through the first notch on each of the fan blades. The base protrusion and the first notch not only increase the heat exchange area of the base but break the thermal boundary layer on the base repeatedly to improve the heat dissipating effect when the cooling fan is working.