Fan
AssigneeDelta Electronics, Inc.
InventorCheng-Wei CHEN
Life of this patent
Estimating the term…
Abstract
A fan includes a frame, an impeller, and a motor. The impeller is disposed in the frame and includes a hub, a plurality of annular blades, and a plurality of spacers. The annular blades are stacked along an axial direction of the hub and disposed around the outer periphery of the hub. The extension directions of the annular blades are perpendicular to the axial direction of the hub. Each of the spacers is disposed between the two adjacent annular blades. The motor is disposed in the frame and drives the impeller to rotate to induce an airflow. The thickness of each annular blade is smaller than or equals to 0.2 mm.
Claims20
A fan, comprising:
- a frame;
- an impeller disposed in the frame and comprising:
- a hub,
- a plurality of annular blades stacked along an axial direction of the hub and disposed around an outer periphery of the hub, wherein extension directions of the annular blades are perpendicular to the axial direction of the hub, and
- a plurality of spacers, each of the spacers is disposed between the two adjacent annular blades;
- and
- a motor disposed in the frame and driving the impeller to rotate to induce an airflow;
- wherein a thickness of each of the annular blades is smaller than or equals to 0.2 mm.
A fan impeller, comprising:
- a hub;
- a plurality of annular blades stacked along an axial direction of the hub and disposed around an outer periphery of the hub, wherein extension directions of the annular blades are perpendicular to the axial direction of the hub;
- and
- a plurality of spacers, each of the spacers is disposed between the two adjacent annular blades.
Dependencies are inferred from the claim text.