Centrifugal fan
AssigneeASUSTeK COMPUTER INC.
InventorsHsin-Chen Lin, Ing-Jer Chiou
Life of this patent
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Abstract
A centrifugal fan is disclosed. The centrifugal fan includes a housing; and a fan wheel, disposed in the housing, the fan wheel including: a fan hub; a plurality of inner fan blades, each of the inner fan blades includes a first contact surface and a second contact surface, the first contact surfaces are connected to the fan hub respectively; a plurality of connection structures, each of the connections structure includes a first side and a second side; and a plurality of outer fan blades, each of the outer fan blades includes a first end and a second end; wherein the second contact surfaces are connected to the first sides respectively, the first ends are connected to the second sides respectively.
Claims7
A centrifugal fan, comprising:
- a housing, includes an air inlet;
- and
- a fan wheel disposed in the housing, including:
- a fan hub;
- a plurality of inner fan blades, located inside an outline scope of the air inlet, each of the inner fan blades including a first contact surface and a second contact surface, the first contact surfaces connected to the fan hub respectively, distances between every two adjacent inner fan blades of the inner fan blades are different;
- a plurality of connection structures, each of the connections structure including a first side and a second side, any adjacent connection structures are not connected with each other;
- and
- a plurality of outer fan blades, each of the outer fan blades including a first end and a second end, the positions of the first end and the second end of the outer fan blade are located outside the outline scope of the air inlet;
- wherein the second contact surfaces are connected to the first sides respectively, the first ends are connected to the second sides respectively, an extending direction of the one of the inner fan blade away from the fan hub and the extending direction of corresponding one of the outer fan blades away from the connection structure are located at different straight lines.
Dependencies are inferred from the claim text.