Assembly for cooling electric modules and components thereof

Abstract

The invention relates to a wall or a door of an assembly for cooling electric modules, comprising a wall element provided with ventilation holes and a membrane filter located on the inside of the wall element, in such a way that air entering by means of the ventilation holes is guided through the membrane filter. The invention is characterised in that the wall element has double-sided lamellae arranged one inside the other in an offset manner, so that each path leading through the arrangement of lamellae has a curvature.

1 . An assembly for cooling electrical modules (BG) using a wall (T) which is mounted in front of the electrical modules, comprising a wall element (TE), which is provided with ventilation holes (LF, LF 1 , LF 2 ), and a membrane filter (MB), which is arranged on the inner side of the wall element (TE), so that the air which enters through the ventilation holes (LF, LF 1 , LF 2 ) is passed through the membrane filter (MB), characterized in that the membrane filter (MB) has a fold with substantially vertically running longitudinal folds, which is designed in such a manner that moisture which forms at the membrane filter drains away downward.  
     
     
         2 . An assembly for cooling electrical modules (BG) using a wall which is mounted in front of the electrical modules, comprising a wall element (TE), which is provided with ventilation holes (LF, LF 1 , LF 2 ), and a membrane filter (MB), which is arranged on the inner side of the wall element (TE), so that the air which enters through the ventilation holes (LF, LF 1 , LF 2 ) is passed through the membrane filter (MB), the membrane filter (MB) having a fold with substantially horizontally running longitudinal folds, characterized in that the membrane filter (MB) has an inclination with respect to the vertical which is such that moisture which forms at the folds of the membrane filter (MB) drains away downward.  
     
     
         3 . The assembly as claimed in  claim 1 , characterized in that the membrane filter (MB) is inclined with respect to the vertical.  
     
     
         4 . The assembly as claimed in one of the preceding claims, characterized 
 in that the membrane filter (MB) is arranged in a frame with frame foot of the wall (T), and    in that the frame foot has a slope which is such that moisture which drains out of the membrane filter (MB) is discharged outward away from the electrical modules.    
     
     
         5 . The assembly as claimed in  claim 4 , characterized in that the wall (T) has openings for draining the water in the vicinity of the frame foot.  
     
     
         6 . The assembly as claimed in one of the preceding claims, characterized in that the membrane filter (MB) has, on its outer side, a wall shell (S) which is formed as a backing matching the desired wall shape by injection-molding, without any material being arranged at the locations of the air inlet (LF 1 , LF 2 ).  
     
     
         7 . The assembly as claimed in one of the preceding claims, characterized in that the wall element (TE) has, on two sides, lamellae (LMZ) which are set inside one another, so that each path leading through the arrangement of lamellae has a curvature and rectilinear passage through the arrangement of lamellae is prevented.  
     
     
         8 . The arrangement as claimed in  claim 7 , characterized in that the wall element (TE) has two wall-element halves (TE 1 , TE 2 ), each wall-element half (TE 1 , TE 2 ) being provided with lamellae (LME 1 , LME 2 ) on one side, so that after the two wall-element halves (TE 1 , TE 2 ) have been joined a wall element (TE) with lamellae (LMZ) on two sides is formed, preventing rectilinear passage.  
     
     
         9 . The assembly as claimed in  claim 8 , characterized in that the lamellae (LM 1 , LM 2 ) on one side of a wall-element half (TE 1 , TE 2 ) are stamped out.  
     
     
         10 . The assembly as claimed in  claim 8  or  9 , characterized in that the wall-element halves (TE 1 , TE 2 ) are surface-connected to one another to form a wall element (TE) by means of joining techniques, such as soldering, welding and/or adhesive bonding.  
     
     
         11 . The assembly as claimed in one of the preceding claims, characterized in that the wall (T) has a fly screen (FG) which is arranged in front of the membrane of the membrane filter (MB), on the inner side of the wall element (TE).  
     
     
         12 . The assembly as claimed in one of the preceding claims, characterized in that the wall (T) has an EMC shield (EMV).  
     
     
         13 . The assembly as claimed in one of the preceding claims, characterized in that the wall is designed as a door (T) of a housing (G).  
     
     
         14 . The assembly as claimed in  claim 13 , characterized in that the housing (G) has at least one cooling device (VE) for building up an air flow.  
     
     
         15 . The assembly as claimed in  claim 14 , characterized in that the housing (G) has a humidity sensor, which is arranged in the interior, and a heating element, which is arranged in front of the membrane filter (MB), the heating element heating air which flows in when the moisture content in the interior of the housing exceeds a predetermined level.