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US 10,294,945 B2Granted
Fan and impeller thereof
AssigneesCooler Master (Hui Zhou) Co., Ltd., Cooler Master Co., Ltd.
InventorsShiman Xu, Jiasheng Lai, Wen-Chun Hsu
Life of this patent
Estimating the term…
Abstract
An impeller includes a fan frame, a hub, a plurality of axial blades and a plurality of wind guiding blades. The fan frame has a wind inlet, a wind outlet and an inner ring-shaped oblique surface, wherein the wind inlet is opposite to the wind outlet, and the inner ring-shaped oblique surface is formed at an inner side wall of the fan frame and adjacent to the wind inlet. The hub is disposed in the fan frame. The axial blades are connected to the inner side wall of the fan frame and the hub. The wind guiding blades protrude from the inner ring-shaped oblique surface.
Claims14
An impeller comprising:
- a fan frame having a wind inlet, a wind outlet and an inner ring-shaped oblique surface, the wind inlet being opposite to the wind outlet, the inner ring-shaped oblique surface being formed at an inner side wall of the fan frame and adjacent to the wind inlet;
- a hub disposed in the fan frame;
- a plurality of axial blades connected to the inner side wall of the fan frame and the hub, wherein each axial blade of the plurality of axial blades has a stepped recess portion that extends towards the wind inlet from a surface of the axial blades that faces the wind outlet, and wherein the stepped recess portion is defined by a first vertical sidewall and a second vertical sidewall, each extending between the wind inlet and the wind outlet, and a bottom portion extending radially between the first and second vertical sidewalls and transverse to the first and second vertical sidewalls;
- a plurality of centrifugal blades axially disposed on an outer side wall of the fan frame;
- and
- a plurality of wind guiding blades protruding from the inner ring-shaped oblique surface, each wind guiding blade having a first end and a second end radially opposite the first end, the first end contacting the inner ring-shaped oblique surface and the second end being free of any connections.
3 more elements
A fan comprising:
- a stator;
- and
- an impeller rotatably disposed on the stator, the impeller comprising:
- a fan frame having a wind inlet, a wind outlet and an inner ring-shaped oblique surface, the wind inlet being opposite to the wind outlet, the inner ring-shaped oblique surface being formed at an inner side wall of the fan frame and adjacent to the wind inlet;
- a hub disposed in the fan frame;
- a plurality of axial blades connected to the inner side wall of the fan frame and the hub, wherein each axial blade of the plurality of axial blades has a stepped recess portion that extends towards the wind inlet from a surface of the axial blades that faces the wind outlet, and wherein the stepped recess portion is defined by a first vertical sidewall and a second vertical sidewall, each extending between the wind inlet and the wind outlet, and a bottom portion extending radially between the first and second vertical sidewalls and transverse to the first and second vertical sidewalls;
- a plurality of centrifugal blades axially disposed on an outer side wall of the fan frame;
- and
- a plurality of wind guiding blades protruding from the inner ring-shaped oblique surface, each wind guiding blade having a first end and a second end radially opposite the first end, the first end contacting the inner ring-shaped oblique surface and the second end being free of any connections.
6 more elements
An impeller comprising:
- a fan frame having a wind inlet, a wind outlet and an inner ring-shaped oblique surface, the wind inlet being opposite to the wind outlet, the inner ring-shaped oblique surface being formed at an inner side wall of the fan frame and adjacent to the wind inlet;
- a hub disposed in the fan frame;
- a plurality of axial blades connected to the inner side wall of the fan frame and the hub, wherein each axial blade of the plurality of axial blades has a stepped recess portion that extends towards the wind inlet from a surface of the axial blades that faces the wind outlet, and wherein the stepped recess portion is defined by a first vertical sidewall and a second vertical sidewall, each extending between the wind inlet and the wind outlet, and a bottom portion extending radially between the first and second vertical sidewalls and transverse to the first and second vertical sidewalls;
- a plurality of centrifugal blades disposed on an outer lower surface of the inner ring-shaped oblique surface and extending in a direction of the wind outlet;
- and
- a plurality of wind guiding blades protruding from the inner ring-shaped oblique surface, each wind guiding blade having a first end and a second end radially opposite the first end, the first end contacting the inner ring-shaped oblique surface and the second end being free of any connections.
3 more elements
A fan comprising:
- a stator;
- and
- an impeller rotatably disposed on the stator, the impeller comprising:
- a fan frame having a wind inlet, a wind outlet and an inner ring-shaped oblique surface, the wind inlet being opposite to the wind outlet, the inner ring-shaped oblique surface being formed at an inner side wall of the fan frame and adjacent to the wind inlet;
- a hub disposed in the fan frame;
- a plurality of axial blades connected to the inner side wall of the fan frame and the hub, wherein each axial blade of the plurality of axial blades has a stepped recess portion that extends towards the wind inlet from a surface of the axial blades that faces the wind outlet, and wherein the stepped recess portion is defined by a first vertical sidewall and a second vertical sidewall, each extending between the wind inlet and the wind outlet, and a bottom portion extending radially between the first and second vertical sidewalls and transverse to the first and second vertical sidewalls;
- a plurality of centrifugal blades disposed on an outer lower surface of the inner ring-shaped oblique surface and extending in a direction of the wind outlet;
- and
- a plurality of wind guiding blades protruding from the inner ring-shaped oblique surface, each wind guiding blade having a first end and a second end radially opposite the first end, the first end contacting the inner ring-shaped oblique surface and the second end being free of any connections.
6 more elements
Dependencies are inferred from the claim text.