Axial flow fan blade structure and axial flow fan thereof
OwnerMing-ju Cheninventor
Life of this patent
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Abstract
An axial flow fan blade structure and an axial flow fan thereof. The axial flow fan blade structure includes a fan impeller and an annular body. The fan impeller has a hub and multiple blades. Each blade has a first flow guide face and a second flow guide face opposite to the first flow guide face. The annular body is disposed on the blades. The annular body outward extends from the first and second flow guide faces and is annularly connected with the blades along the blades. The annular body not only is able to increase the strength of the blades of the axial flow fan, but also is able to reduce vibration and noise made by the axial flow fan.
Claims12
An axial flow fan blade structure comprising:
- a fan impeller having a hub and multiple blades annularly arranged along a circumference of the hub, each blade having a first flow guide face and a second flow guide face opposite to the first flow guide face;
- and
- an annular body disposed on the blades, the annular body outward extending from the first and second flow guide faces and being annularly connected with the blades along the blades.
An axial flow fan comprising:
- a frame body having a receiving space and a shaft seat disposed at a center of the receiving space;
- a fan impeller rotatably assembled with the shaft seat, the fan impeller having a hub and multiple blades annularly arranged along a circumference of the hub, each blade having a first flow guide face and a second flow guide face opposite to the first flow guide face;
- and
- an annular body disposed on the blades, the annular body outward extending from the first and second flow guide faces and being annularly connected with the blades along the blades.
Dependencies are inferred from the claim text.