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US 9,068,573 B2Granted
Centrifugal fan
AssigneeWistron Corporation
InventorsJung-Hun Kuo, Mei-Hui Lai, Yi-Hsieh Chiou
Life of this patent
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Abstract
A centrifugal fan is disclosed. The centrifugal fan includes a fan device and a case. The fan device includes an impeller and a plurality of blades, wherein the plurality of blades are mounted separately around the impeller. The case is provided to allow the fan device to be disposed and to rotate inside it. The case includes a top cover, a bottom cover, and a side wall. The side wall is mounted between the top cover and the bottom cover. The side wall includes a fixed part and a deformable part. The fixed part is connected with the top cover and the bottom cover, and the deformable part is connected with the fixed part.
Claims9
An electronic device, comprising a centrifugal fan, the centrifugal fan comprising:
- a fan device, comprising:
- an impeller;
- and
- a plurality of blades, mounted separately around the impeller, and connected with the impeller;
- and
- a case, provided to allow the fan device to be disposed and rotate therein, the case comprising:
- a top cover, comprising an air inlet;
- a bottom cover, parallel to the top cover, wherein the fan device is disposed between the top cover and the bottom cover;
- and
- a side wall, mounted between the top cover and the bottom cover, wherein gap sizes between each part of the side wall and of the nearby blades are different, such that air entering the air inlet flows toward a direction of an air outlet and through the air outlet, the side wall comprising:
- a fixed part, connected with the top cover and the bottom cover;
- and
- a deformable part, connected with the fixed part, such that when the fan device rotates inside the case to make the air enter the air inlet, deformation of the deformable part causes adjustment of a gap width between the deformable part of the side wall and the nearby blades, thereby adjusting an airflow of the air through the air outlet;
- wherein the deformable part is made of memory alloy materials.
11 more elements
An electronic device, comprising a centrifugal fan, the centrifugal fan comprising:
- a fan device, comprising:
- an impeller;
- and
- a plurality of blades, mounted separately around the impeller, and connected with the impeller;
- and
- a case, provided to allow the fan device to be disposed and rotate therein, the case comprising:
- a top cover, comprising an air inlet;
- a bottom cover, parallel to the top cover, wherein the fan device is disposed between the top cover and the bottom cover;
- and
- a side wall, mounted between the top cover and the bottom cover, wherein gap sizes between each part of the side wall and of the nearby blades are different, such that air entering the air inlet flows toward a direction of an air outlet and through the air outlet, the side wall comprising:
- a fixed part, connected with the top cover and the bottom cover;
- and
- a deformable part, connected with the fixed part, such that when the fan device rotates inside the case to make the air enter the air inlet, deformation of the deformable part causes adjustment of a gap width between the deformable part of the side wall and the nearby blades, thereby adjusting an airflow of the air through the air outlet;
- wherein the deformable part is made of elastic materials, and the centrifugal fan further comprises a control bar, such that the control bar can be moved to cause deformation of the deformable part.
11 more elements
A centrifugal fan, used in an electronic device, the centrifugal fan comprising:
- a fan device, comprising:
- an impeller;
- and
- a plurality of blades, mounted separately around the impeller, and connected with the impeller;
- and
- a case, provided to allow the fan device to be disposed and rotate therein, the case comprising:
- a top cover, comprising an air inlet;
- a bottom cover, parallel to the top cover, wherein the fan device is disposed between the top cover and the bottom cover;
- and
- a side wall, mounted between the top cover and the bottom cover, wherein gap sizes between each part of the side wall and of the nearby blade are different, such that air entering the air inlet flows toward a direction of an air outlet and through the air outlet, the side wall comprising:
- a fixed part, connected with the top cover and the bottom cover;
- and
- a deformable part, connected with the fixed part, such that when the fan device rotates inside the case to make the air enter the air inlet, deformation of the deformable part causes adjustment of a gap width between the deformable part of the side wall and the nearby blades, thereby adjusting an airflow of the air through the air outlet;
- wherein the deformable part is made of elastic materials, and the centrifugal fan further comprises a control bar, such that the control bar can be moved to cause deformation of the deformable part.
11 more elements
A centrifugal fan, used in an electronic device, the centrifugal fan comprising:
- a fan device, comprising:
- an impeller;
- and
- a plurality of blades, mounted separately around the impeller, and connected with the impeller;
- and
- a case, provided to allow the fan device to be disposed and rotate therein, the case comprising:
- a top cover, comprising an air inlet;
- a bottom cover, parallel to the top cover, wherein the fan device is disposed between the top cover and the bottom cover;
- and
- a side wall, mounted between the top cover and the bottom cover, wherein gap sizes between each part of the side wall and of the nearby blade are different, such that air entering the air inlet flows toward a direction of an air outlet and through the air outlet, the side wall comprising:
- a fixed part, connected with the top cover and the bottom cover;
- and
- a deformable part, connected with the fixed part, such that when the fan device rotates inside the case to make the air enter the air inlet, deformation of the deformable part causes adjustment of a gap width between the deformable part of the side wall and the nearby blades, thereby adjusting an airflow of the air through the air outlet;
- wherein the deformable part is made of memory alloy materials.
11 more elements
Dependencies are inferred from the claim text.