US 12,404,869 B1
Centrifugal heat dissipation fan
Tsung-Ting Chen, New Taipei (TW); Mao-Neng Liao, New Taipei (TW); Cheng-Wen Hsieh, New Taipei (TW); Wei-Chin Chen, New Taipei (TW); Kuang-Hua Lin, New Taipei (TW); Yu-Ming Lin, New Taipei (TW); and Kuan-Lin Chen, New Taipei (TW)
Assigned to Acer Incorporated, New Taipei (TW)
Filed by Acer Incorporated, New Taipei (TW)
Filed on Feb. 27, 2025, as Appl. No. 19/064,699.
Claims priority of application No. 113107571 (TW), filed on Mar. 1, 2024.
Int. Cl. F04D 29/30 (2006.01); F04D 29/28 (2006.01); H05K 7/20 (2006.01)
CPC F04D 29/281 (2013.01) [F04D 29/30 (2013.01); H05K 7/20172 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A centrifugal heat dissipation fan, comprising:
a housing, having a pair of inlets and at least one outlet; and
a blade wheel, rotatably disposed in the housing, the inlets are located on a rotation axial direction of the blade wheel, the at least one outlet is located on a rotation radial direction of the blade wheel, the blade wheel has a hub and a plurality of metal blades disposed and surrounding to the hub, each of the metal blades has a body, an upper bending plate and a lower bending plate extending from opposite sides of the body, the upper bending plate and the lower bending plate respectively correspond to the corresponding inlets, and the upper bending plate and the lower bending plate are movable relative to the body, an including angle of the upper bending plate relative to the body and an including angle of the lower bending plate relative to the body are changed along with a rotating speed of the blade wheel respectively.