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. 26, 2023
Filed:
May. 03, 2023
Acer Incorporated, New Taipei, TW;
Tsung-Ting Chen, New Taipei, TW;
Wen-Neng Liao, New Taipei, TW;
Cheng-Wen Hsieh, New Taipei, TW;
Jau-Han Ke, New Taipei, TW;
Kuang-Hua Lin, New Taipei, TW;
Yu-Ming Lin, New Taipei, TW;
Chun-Chieh Wang, New Taipei, TW;
Acer Incorporated, New Taipei, TW;
Abstract
A fan including a frame and an impeller is disclosed. The frame has an air inlet and an air outlet. The impeller is disposed in the frame and includes a hub and multiple blades. Each blade has a negative pressure surface facing the air inlet, a positive pressure surface facing the air outlet, a blade root, and a blade tip opposite to the blade root. In a first region extending from the blade root to the blade tip by a first length, the negative pressure surface and the positive pressure surface are respectively a convex arc surface and a plane. In a second region extending from the blade tip to the blade root by a second length smaller than the first length, the negative pressure surface and the positive pressure surface are respectively a convex arc surface and a concave arc surface or both are convex arc surfaces.