Wind-guiding cover

Abstract

A wind guiding cover applied to an electronic device is provided, which has an air inlet portion and an air outlet portion opposing to the air inlet portion. A heat exchange zone is formed between the air inlet and the air outlet, and an airflow disturbing portion, adjacent to the air inlet portion, is formed within the heat exchange zone. The airflow disturbing portion in the present invention allows a greater air disturbance of the airflow passing therethrough, as a result, it improves the heat exchange coefficient and increases the heat exchange effect in the present invention.

1 . A wind-guiding cover applied to an electronic device having at least one heat generating component, wherein the electronic device has a fan module and a main board for the heat generating component to be installed thereon, and the heat generating component is covered with the wind-guiding cover forming an air passage with the main board, the wind-guiding cover comprising:
 an air inlet portion having an air inlet provided on a first end of the air passage and coupled with the fan module, allowing a cool airflow driven by the fan module to enter the air passage via the air inlet;   an air outlet portion having an air outlet provided on a second end of the air passage and opposite to the air inlet; and   a heat exchange zone provided between the air inlet portion and the air outlet portion and allowing the heat generating component to be situated within the heat exchange zone, the heat exchange zone having an airflow disturbing portion adjacent to the air inlet portion to enhance the airflow disturbance and increase the heat exchange coefficient, wherein the cool airflow makes heat exchange with the heat generating component to form a hot airflow in the heat exchange zone and discharge the hot airflow from the air outlet.   
   
   
       2 . The wind-guiding cover of  claim 1 , wherein an airflow pressing section is further formed between the air inlet and the heat exchange zone, wherein the cool airflow is pressed downwards in the heat exchange zone for acceleration. 
   
   
       3 . The wind-guiding cover of  claim 1 , wherein an air diffusion section is further formed between the airflow disturbing portion and the air outlet portion to reduce the air resistance. 
   
   
       4 . The wind-guiding cover of  claim 1 , wherein the airflow disturbing portion has at least a V-shaped folded structure. 
   
   
       5 . The wind-guiding cover of  claim 1 , wherein the airflow disturbing portion is formed with a first inclined planed plane and a second inclined plane, the first inclined plane connected to the air inlet portion is formed on an inner top wall of the heat exchange zone to extend downwards alongside the airflow direction, and the second inclined plane opposite to the air inlet portion is formed on the inner top wall of the heat exchange zone to extend upwards alongside the airflow direction. 
   
   
       6 . The wind-guiding cover of  claim 5 , wherein the first inclined plane and the second inclined plane has a V-shaped structure in combination. 
   
   
       7 . The wind-guiding cover of  claim 5 , wherein the heat exchange zone has an air diffusion section provided between the second inclined plane and the air outlet portion. 
   
   
       8 . The wind-guiding cover of  claim 7 , wherein the air diffusion section is formed with a first sloped plane disposed on the inner top wall of the heat exchange zone to extend upwards alongside the airflow direction, with an inclined angle equal to that of the second inclined plane. 
   
   
       9 . The wind-guiding cover of  claim 8 , wherein a slope angle of the air diffusion section against a horizontal plane is less than 30 degrees. 
   
   
       10 . The wind-guiding cover of  claim 5 , wherein the air inlet portion has an airflow pressing section which is formed with a second sloped plane to extend downwards, disposed between the air inlet and the airflow disturbing portion. 
   
   
       11 . The wind-guiding cover of  claim 10 , wherein the airflow pressing section is connected to the first inclined plane of the airflow disturbing portion. 
   
   
       12 . The wind-guiding cover of  claim 10 , wherein the airflow pressing section and the first inclined plane respectively have a same slope angle.