Exhaust system for electronic equipment enclosure

Abstract

An electronic equipment cabinet where a top cover is made of upper and lower synthetic resin panels which are welded at their edges to form an air chamber therebetween. The upper panel is domed while the lower panel has a corrugated like structure. Access ports are provided which may be sealed shut. Rain directing berms are also provided to direct rain to the corners of the cover and away from access doors to a sealed electronic equipment chamber in the cabinet. Lateral air and water exhaust passageways extending the width of the cover is provided as a path for exhaust air from a heat exchanger which normally moves in one direction but which under high wind conditions may move in the opposite direction and for allowing the passage of rain water from one side of the cabinet to the opposite side.

1 . An exhaust system for an electrical equipment enclosure, the enclosure having a heat exchanger mounted therein, said exhaust system comprising in combination: 
 first and second synthetic resin panels mounted on top of said enclosure, said panels having an enclosed space formed therebetween;    a centrifugal fan mounted within said enclosure and in operative communication with said heat exchanger and said resin panels;    said resin panels forming a fan casing for said centrifugal fan and a first passageway smoothly transitioning from said centrifugal fan location and extending in a first direction, said first passageway for exhausting air passing through said heat exchanger; and    said resin panels also forming a second passageway in communication with said first passageway, said second passageway extending in a second direction opposite to said first direction for exhausting air exiting from said centrifugal fan when pressure in said first passageway is higher than fan capacity and for allowing water entering one of said first or said second passageways to flow through to the other of said first or said second passageways.    
     
     
         2 . The exhaust system as claimed in  claim 1  wherein: 
 said first and said second panels form a periphery where said first and said second panels are separated; and  
 interior of said periphery, said first and said second panels are adjacent in some locations and separated in other locations.  
 
     
     
         3 . The exhaust system as claimed in  claim 2  wherein: 
 said second panel includes walls that are generally vertically disposed where said first and said second panels transition between adjacent and separated locations.  
 
     
     
         4 . The exhaust system as claimed in  claim 3  wherein: 
 various geometric patterns are formed by said second panel by transitions between being adjacent and being separated from said first panel.  
 
     
     
         5 . The exhaust system as claimed in  claim 1  wherein: 
 said first and said second panels are adjacent one another where said panels form said fan casing and said first and said second passageways.  
 
     
     
         6 . The exhaust system as claimed in  claim 5  wherein: 
 said second panel includes a corrugated cross-section.  
 
     
     
         7 . The exhaust system as claimed in  claim 1  wherein: 
 said first panel includes a length and a width and a bowed shape across said width.  
 
     
     
         8 . The exhaust system as claimed in  claim 1  wherein: 
 said first panel includes a length and a width and berms extending along said length and said width.  
 
     
     
         9 . The exhaust system as claimed in  claim 4  wherein: 
 said first and said second panels are adjacent one another where said panels form said fan casing and said first and said second passageways.  
 
     
     
         10 . The exhaust system as claimed in  claim 9  wherein: 
 said second panel includes a corrugated cross-section.  
 
     
     
         11 . The exhaust system as claimed in  claim 10  wherein: 
 said first panel includes a length and a width and a bowed shape across said width.  
 
     
     
         12 . The exhaust system as claimed in  claim 11  wherein: 
 said first panel includes a length and a width and berms extending along said length and said width.  
 
     
     
         13 . A top cover for an electrical equipment enclosure comprising: 
 a first synthetic resin panel having a periphery; and    a second synthetic resin panel having a periphery, said panels being separated from one another at said periphery thereof and being adjacent one another interior of said peripheries.    
     
     
         14 . The top cover as claimed in  claim 13  wherein: 
 said second panel includes walls that are generally vertically disposed where said first and said second panels transition between adjacent and separated locations.  
 
     
     
         15 . The top cover as claimed in  claim 14  wherein: 
 said second panel includes a corrugated cross-section. (Change claims  6  and  10  from profile to cross section. Joe, I did this.)  
 
     
     
         16 . The top cover as claimed in  claim 15  wherein: 
 said first panel includes a length and a width and a bowed shape across said width.  
 
     
     
         17 . The top cover as claimed in  claim 16  wherein: 
 said first panel includes a length and a width and berms extending along said length and said width.  
 
     
     
         18 . The top cover as claimed in  claim 17  wherein: 
 said first and said second panels form a fan casing and a passageway; and  
 said first and said second panels are adjacent to one another at said fan casing and said passageway.