Ventilation System With Sound Barrier

Abstract

The invention relates to a noise-optimized ventilation system ( 100 ) which can in particular be integrated into a vehicle, with the ventilation system ( 100 ) having at least one heat exchanger ( 1 ) and a fan ( 2 ) for acting on an air guiding volume ( 3 ) with an air flow ( 7 ), wherein the air guiding volume ( 3 ) has at least one inlet ( 4 ), an outlet ( 5 ) and a sound barrier ( 6 ).

1 . A ventilation system ( 100 ) comprising at least one heat exchanger ( 1 ) and at least one fan ( 2 ) for acting on an air guiding volume ( 3 ), with the air guiding volume ( 3 ) having at least one inlet ( 4 ), an outlet ( 5 ) and a sound barrier ( 6 ), wherein the sound barrier ( 6 ) is an element which reduces the propagation of sound substantially by means of reflection. 
   
   
       2 . A ventilation system ( 100 ) according to  claim 1 , wherein the sound barrier ( 6 ) is connected at least to one wall face of the air guiding volume ( 3 ). 
   
   
       3 . A ventilation system ( 100 ) according to  claim 1 , wherein the sound barrier ( 6 ) is arranged substantially perpendicular to the flow direction of the medium ( 7 ) which is set in motion by the fan ( 2 ). 
   
   
       4 . A ventilation system ( 100 ) according to  claim 1 , wherein the sound barrier ( 6 ) is embodied as a beam structure. 
   
   
       5 . A ventilation system ( 100 ) according to  claim 1 , wherein the heat exchanger ( 1 ) is situated between the fan ( 2 ) and the sound barrier ( 6 ). 
   
   
       6 . A ventilation system ( 100 ) according to  claim 1 , wherein the spacing between the heat exchanger ( 1 ) and the sound barrier ( 6 ) is in the range from 2 mm to 150 mm. 
   
   
       7 . A ventilation system ( 100 ) according to  claim 1 , wherein the cross section, which is exposed to flow, of the sound barrier ( 6 ) is in the range from 10% to 30% of the cross section of the heat exchanger ( 1 ). 
   
   
       8 . A ventilation system ( 100 ) according to  claim 1 , wherein the flow cross section ( 8 ), which is reduced by the integration of the sound barrier ( 6 ), of the air guiding volume ( 3 ) is greater than or equal to the remaining flow cross section ( 9 ), which is situated downstream of the sound barrier ( 6 ), of the air guiding volume ( 3 ). 
   
   
       9 . A ventilation system ( 100 ) according to  claim 1 , wherein the flow cross section in the air guiding volume ( 3 ) is abruptly reduced in size downstream of the heat exchanger ( 1 ). 
   
   
       10 . A ventilation system ( 100 ) according  claim 1 , wherein the cross section of the inlet ( 4 ) is greater than or equal to the cross section of the outlet ( 5 ). 
   
   
       11 . A ventilation system ( 100 ) according to  claim 1 , wherein the air guiding volume ( 3 ) and/or the sound barrier ( 6 ) are formed from plastic. 
   
   
       12 . A ventilation system ( 100 ) according to  claim 1 , wherein the air guiding volume ( 3 ) and the sound barrier ( 6 ) are produced in an integral construction. 
   
   
       13 . A ventilation system ( 100 ) according to  claim 1 , wherein at least a part of the air guiding volume ( 3 ) is formed in an integral construction, with at least a part of at least one sound barrier ( 6 ). 
   
   
       14 . A ventilation system ( 100 ) according to  claim 2 , wherein the sound barrier ( 6 ) is arranged substantially perpendicular to the flow direction of the medium ( 7 ) which is set in motion by the fan ( 2 ). 
   
   
       15 . A ventilation system ( 100 ) according to  claim 2 , wherein the sound barrier ( 6 ) is embodied as a beam structure. 
   
   
       16 . A ventilation system ( 100 ) according to  claim 3 , wherein the sound barrier ( 6 ) is embodied as a beam structure. 
   
   
       17 . A ventilation system ( 100 ) according to  claim 14 , wherein the sound barrier ( 6 ) is embodied as a beam structure. 
   
   
       18 . A ventilation system ( 100 ) according to  claim 6 , wherein the spacing between the heat exchanger ( 1 ) and the sound barrier ( 6 ) is in the range from 10 mm to 80 mm. 
   
   
       19 . A ventilation system ( 100 ) according to  claim 7 , wherein the cross section, which is exposed to flow, of the sound barrier ( 6 ) is 17% of the cross section of the heat exchanger ( 1 ). 
   
   
       20 . A ventilation system ( 100 ) according to  claim 11 , wherein the plastic is polypropylene (PP) or polyamide (PA).