Fan assembly

Abstract

A fan assembly includes a metal frame, a vane, and a driving means; wherein the driving means is installed at the middle of the metal frame and the vane is installed at an end of the driving means. With better tensile strength and structural strength of a metal, the thickness of the metal frame of the fan assembly can be made thinner, and thus improving the airflow and the heat dissipating effect to dissipate produced heat more effectively.

1 . A fan assembly, comprising: 
 a metal frame;    a driving means, disposed at the central position of said metal frame; and    a vane, disposed at an end of said driving device.    
   
   
       2 . The fan assembly of  claim 1 , wherein said metal frame comprises a protective grid disposed at an external edge of an end of said metal frame and closely coupled with a side of said metal frame.  
   
   
       3 . The fan assembly of  claim 2 , wherein said protective grid comprises a solid fixing piece disposed at the central position of said protective grid and coupled to an end of said driving means.  
   
   
       4 . The fan assembly of  claim 3 , wherein said driving means comprises an axle pivotally installed at another end of said driving means, and said driving means drives said axle to rotate, and said vane has a groove disposed at a position facing said axle for latching onto said axle, and said driving means drives said vane to rotate after said driving means is operated to drive said axle.  
   
   
       5 . The fan assembly of  claim 4 , wherein said vane comprises an arc-shaped wing nose disposed at said vane with its back facing an end of said groove, and said wing nose is streamlined.  
   
   
       6 . The fan assembly of  claim 1 , wherein said metal frame comprises a plurality of lugs disposed around an external periphery of said metal frame and a plurality of bores disposed on a side of a casing and having the same quantity as that of said plurality of lugs for fixing said plurality of lugs onto said bores of said casing by a plurality of bolts.  
   
   
       7 . The fan assembly of  claim 1 , wherein said metal frame comprises a plurality of L-shaped hook sections disposed around an external periphery of said metal frame, and said casing comprises a plurality of grooves disposed at corresponding positions of said metal frame.  
   
   
       8 . The fan assembly of  claim 1 , wherein said metal frame and said casing are integrally coupled with each other.