Structure of air duct and manufacturing process of the same

Abstract

A method of manufacturing an air duct is provided. First, a plastic material is heated until the plastic material is melted. Next, the molten plastic material is sucked into a mold and then the molten plastic material inside the mold is cooled to form the air duct. Finally, the air duct is removed from the mold. The air duct comprises a housing including passageway for air to flow there-through, a first air inlet/outlet formed on a side thereof, and a joint portion formed on another side thereof corresponding to the first air inlet/outlet to fix to a fan. The joint portion has a second air inlet/outlet. When the fan rotates, airflow is generated, which carries the heat generated by the operation of the devices via the second air inlet/outlet and then exits out via the first air inlet/outlet.

What is claimed is: 
     
         1 . A method of manufacturing an air duct, comprising:
 heating a plastic material until the plastic material is melted;   sucking the molten plastic material into a mold comprising a predetermined structure of the air duct and cooling the molten plastic material inside the mold to form the air duct; and   removing the air duct from the mold.   
     
     
         2 . A structure of an air duct formed according to the method as claimed in  claim 1 , wherein said air duct comprises at least a housing including a first air inlet/outlet formed on a side thereof, and a joint portion formed on another side thereof, and wherein said joint portion comprises a plurality of protruding buckles. 
     
     
         3 . The structure of an air duct according to  claim 2 , wherein said joint portion is buckled to a fan. 
     
     
         4 . The structure of an air duct according to  claim 2 , wherein said housing comprises a second air inlet/outlet formed in an indented portion of said housing on which a fan is mounted thereon. 
     
     
         5 . The structure of an air duct according to  claim 4 , wherein said housing comprises a plurality of protruding buckles to collectively form the joint portion. 
     
     
         6 . A structure of an air duct comprising at least a housing including a first air inlet/outlet formed on a side thereof; and a plurality of protruding buckles formed on another side thereof to collectively form a joint portion, wherein said joint portion surrounds a second air inlet/outlet. 
     
     
         7 . The structure of an air duct according to  claim 6 , wherein said joint-portion is adopted for buckling to a fan.