Patent Publication Number: US-2012024414-A1

Title: Air duct

Description:
BACKGROUND 1. Technical Field 
     The present disclosure relates to an air duct. 
     2. Description of Related Art 
     Air ducts installed on circuit boards are generally made of opaque material. As a result, some indicator lights mounted on the circuit board may be obscured, which is inconvenient. However, air ducts made of transparent material are more costly. As a result, an air duct to overcome the above deficiencies is needed. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       Many aspects of the present embodiments can be better understood with reference to the following drawings. The components in the drawings are not necessarily drawn to scale, the emphasis instead being placed upon clearly illustrating the principles of the present embodiments. Moreover, in the drawings, all the views are schematic, and like reference numerals designate corresponding parts throughout the several views. 
         FIG. 1  is an assembled, isometric view of an exemplary embodiment of an air duct, together with a circuit board and a plurality of electronic devices. 
         FIG. 2  is an exploded, isometric view of the air duct with the circuit board and the electronic devices of  FIG. 1 . 
     
    
    
     DETAILED DESCRIPTION 
     The disclosure, including the accompanying drawings, is illustrated by way of example and not by way of limitation. It should be noted that references to “an” or “one” embodiment in this disclosure are not necessarily to the same embodiment, and such references mean at least one. 
     Referring to  FIG. 1  and  FIG. 2 , an exemplary embodiment of an air duct  1  is used to direct airflow for heat dissipation without obscuring a plurality of indicator lights  30  mounted on a circuit board  3 , which can indicate the working status of a plurality of corresponding electronic devices  2 . 
     The air duct  1  includes a main body  5  installed on the circuit board  3  and shielding the indicator lights  30 , and a plurality of transparent films  2 . The air duct  1  defines a plurality of viewing windows  10  aligning with the corresponding indicator lights  30  in a top of the main body  5 . The transparent film  12  covers the corresponding viewing windows  10 . 
     In this embodiment, the electronic devices  2  are fans, the indicator lights  30  are light-emitting diodes. 
     In this embodiment, the transparent films  12  are made of polyester film. 
     It is believed that the present embodiments and their advantages will be understood from the foregoing description, and they will be apparent that various changes may be made thereto without departing from the spirit and scope of the description or sacrificing all of their material advantages, the examples hereinbefore described merely being exemplary embodiment.