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US 8,408,981 B2Granted
Exhaust device
AssigneeMsi Computer (Shenzhen) Co., Ltd.
InventorsHeng-Yung Su, Yao-Shih Leng
Life of this patent
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Abstract
An exhaust device applied to an electronic device is described. Memory deformable elements of the exhaust device are heated to shrink, and meanwhile, guide vanes located on an air outlet are driven to rotate and swing back and forth between a left outlet position and a right outlet position, such that the exhaust device reciprocatively changes an outlet position without requiring any external power.
Claims8
An exhaust device, disposed on an air flow channel provided for a hot air flow to pass there through, comprising:
- a plurality of vanes, disposed on the air flow channel in such a manner that the vanes are rotatable and interlocked with each other, wherein the plurality of vanes comprises a left vane and a right vane located on two sides, and has a left outlet position and a right outlet position;
- a first memory deformable element, connected to the right vane, wherein when the vanes are located on the left outlet position, the right vane shields the first memory deformable element;
- and
- a second memory deformable element, connected to the left vane, wherein when the vanes are located on the right outlet position, the left vane shields the second memory deformable element;
- wherein the first memory deformable element and the second memory deformable element are alternately shielded by the right vane or the left vane, or alternately heated by the hot air flow, such that the first memory deformable element and the second memory deformable element are alternately deformed or restored, so as to drive the vanes to rotate and swing back and forth between the left outlet position and the right outlet position to allow automatic changing of an exhaust direction for the hot airflow out of the airflow channel.
2 more elements
Dependencies are inferred from the claim text.