Outdoor electronic sign enclosure

Abstract

An outdoor electronic sign enclosure includes a sealed housing. A heat exchanger forms a part of the sealed housing. An air circulation system is coupled to the heat exchanger.

What is claimed is:  
     
         1 . An outdoor electronic sign enclosure, comprising: 
 a sealed housing;    a heat exchanger forming a part of the sealed housing; and    an air circulation system coupled to the heat exchanger.    
     
     
         2 . The sign of  claim 1 , wherein the air circulation system is a fan.  
     
     
         3 . The sign of  claim 2 , wherein the fan is inside the sealed housing.  
     
     
         4 . The sign of  claim 1 , wherein the heat exchanges is an accordion heat exchanger.  
     
     
         5 . The sign of  claim 4 , wherein the accordion heat exchanger is shaded from the sun.  
     
     
         6 . The sign of  claim 1 , further including an electronic circuit board in the sealed housing.  
     
     
         7 . The sign of  claim 1 , further including a mask covering at least a part of a face of the sealed housing.  
     
     
         8 . The sign of  claim 1 , wherein the sealed housing has a surface area of less than five square meters.  
     
     
         9 . An outdoor electronic sign enclosure, comprising: 
 a sealed housing;    an electronic circuit board contained in the sealed housing; and    a heat exchanger forming a part of the sealed housing.    
     
     
         10 . The sign of  claim 9 , further including an air circulation system.  
     
     
         11 . The sign of  claim 10 , wherein the air circulation system is a fan.  
     
     
         12 . The sign of  claim 11 , wherein the fan is inside the sealed housing.  
     
     
         13 . The sign of  claim 12 , wherein the heat exchanger is an accordion heat exchanger.  
     
     
         14 . The sign of  claim 13 , wherein the sign has a mask.  
     
     
         15 . An outdoor electronic sign enclosure, comprising: 
 a sealed housing;    a low energy display system contained in the sealed housing; and    a heat exchanger forming part of the sealed housing.    
     
     
         16 . The sign of  claim 15 , wherein the low energy lighting system is an electric lighting system.  
     
     
         17 . The sign of  claim 16 , wherein the low energy lighting system is a low voltage electric lighting system.  
     
     
         18 . The sign of  claim 15 , wherein the heat exchanger is an accordion heat exchanger.  
     
     
         19 . The sign of  claim 15 , further including an air circulation system.  
     
     
         20 . An outdoor electronic sign enclosure, comprising: 
 a sealed housing;    a heat exchanger attached to the sign housing; and    a mask face on a face of the sealed housing.    
     
     
         21 . The sign of  claim 20 , wherein the heat exchanger is an accordion type heat exchanger.