Heat dissipation module and flow direction controlling structure thereof
First Claim
1. A heat dissipation module, comprising:
- a housing;
at least two impellers disposed in the housing; and
a flow direction controlling structure, comprising a limiting element and a plurality of rotatable elements disposed at an outlet of the housing;
wherein each of the rotatable elements comprises a fixed end and a correspondingly movable end, for guiding airflow;
wherein the impellers comprise a first impeller and a second impeller, and when outlet pressure of corresponding to the first impeller and the second impeller are different, the movable ends of the rotatable elements deflect to the first impeller or the second impeller to change outlet areas of the first impeller and the second impeller, and when the first impeller and the second impeller are in operation, the limiting element limits the movable ends of the rotatable elements from deflecting to the first impeller or the second impeller.
1 Assignment
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Accused Products
Abstract
A heat dissipation module includes a first heat dissipation apparatus, a second heat dissipation apparatus, and a flow direction controlling structure. The first heat dissipation apparatus and the second heat dissipation apparatus are symmetrically disposed. The flow direction controlling structure has several rotatable elements disposed between the first heat dissipation apparatus and the second heat dissipation apparatus. Each of the rotatable elements has a fixed end and a correspondingly movable end for guiding airflow. The rotatable elements can be sheet-shaped, wing-shaped, arc-shaped or nonlinear in cross section. The thickness of the rotatable elements varies or decreases from the fixed end to the movable end. The rotatable elements overlap an adjacent rotatable element so as to selectively seal the heat dissipation apparatuses. The heat dissipation module and the flow direction controlling structure control airflow, remain overall outlet scope, reduce noise and improve heat dissipation efficiency of the module.
23 Citations
8 Claims
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1. A heat dissipation module, comprising:
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a housing; at least two impellers disposed in the housing; and a flow direction controlling structure, comprising a limiting element and a plurality of rotatable elements disposed at an outlet of the housing; wherein each of the rotatable elements comprises a fixed end and a correspondingly movable end, for guiding airflow; wherein the impellers comprise a first impeller and a second impeller, and when outlet pressure of corresponding to the first impeller and the second impeller are different, the movable ends of the rotatable elements deflect to the first impeller or the second impeller to change outlet areas of the first impeller and the second impeller, and when the first impeller and the second impeller are in operation, the limiting element limits the movable ends of the rotatable elements from deflecting to the first impeller or the second impeller. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification