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:
Dec. 28, 2021
Filed:
Feb. 20, 2020
Acer Incorporated, New Taipei, TW;
Kuang-Hua Lin, New Taipei, TW;
Tsung-Ting Chen, New Taipei, TW;
Cheng-Wen Hsieh, New Taipei, TW;
Wen-Neng Liao, New Taipei, TW;
Acer Incorporated, New Taipei, TW;
Abstract
An axial flow fan includes a hub and a plurality of fan sets disposed around the hub. The hub rotates around a center axis and has a positive pressure side and a negative pressure side opposite to each other. Each of the fan sets includes at least two blades, and each blade has a wind inlet end, a wind outlet end opposite to the wind inlet end, a negative pressure surface, and a positive pressure surface opposite to the negative pressure surface. The wind outlet end of one of the adjacent two blades corresponds to the wind inlet end of the other one of the adjacent two blades. A gap is provided between the negative pressure surface of one of the adjacent two blades and the positive pressure surface of the other one of the adjacent two blades.