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US 2025/0027502 A1Published application
Axial-flow heat-dissipation fan
AssigneeAcer Incorporated
InventorsCheng-Wen Hsieh, Mao-Neng Liao, Kuang-Hua Lin, Wei-Chin Chen, Tsung-Ting Chen
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Abstract
An axial-flow heat dissipation fan including a frame, a hub, and a plurality of blades is provided. The frame has an air inlet and an air outlet. The hub is rotatably arranged in the frame. The blades disposed at side of the hub respectively and rotate along with the hub. Each of the blades has a front surface facing toward the air inlet and a rear surface facing toward the air outlet. A surface roughness of the front surface is different from a surface roughness of the rear surface.
Claims8
An axial-flow heat dissipation fan, comprising:
- a frame, having an air inlet and an air outlet;
- a hub, rotatably arranged in the frame;
- and
- a plurality of blades, disposed at side of the hub respectively and rotate along with the hub, wherein each of the blades has a front surface facing toward the air inlet and a rear surface facing toward the air outlet, and a surface roughness of the front surface is different from a surface roughness of the rear surface.
1 more element
Dependencies are inferred from the claim text.