Heating, ventilation and/or air-conditioning unit designed to accommodate a cartridge for the treatment of air by diffusion of a volatile treating agent

Abstract

The subject of the invention is a heating, ventilation and/or air-conditioning unit, especially for a vehicle, which is equipped with means for treating the air by diffusion of a volatile agent. This unit comprises a wall ( 2 ) bounding an air circuit ( 8 ), this wall ( 2 ) having an opening ( 7 ) therethrough for the passage of a treatment cartridge ( 1 ). A permeable partition ( 10 ) defines a diffusion chamber ( 11 ) for the volatile agent, this partition ( 10 ) being placed in the internal volume of the air circuit ( 8 ).

1 . Heating, ventilation and/or air-conditioning unit comprising an air circuit ( 8 ) between at least one inlet vent and at least one outlet vent, this air circuit ( 8 ) being bounded by an air-impermeable volume bounded by a wall ( 2 ) that includes at least one opening ( 7 ) for the passage therethrough of a cartridge ( 1 ) for treating the air by diffusion of a volatile treating agent, characterized in that a permeable partition ( 10 ) defining a chamber ( 11 ) for diffusion of the volatile agent is placed in the internal volume of the air circuit ( 8 ).  
   
   
       2 . Unit according to  claim 1 , characterized in that, when the opening ( 7 ) is provided through the wall ( 2 ) along an axis transverse to the direction of the air flow inside the circuit ( 8 ), the partition ( 10 ) lies in the extension of the opening ( 7 ) in the wall ( 2 ).  
   
   
       3 . Unit according to  claim 1 , characterized in that, when the opening ( 7 ) is provided through the wall ( 2 ) along an axis corresponding to the direction of air flow inside the circuit ( 8 ), the partition ( 10 ) lies transversely to the axis of the opening ( 7 ).  
   
   
       4 . Unit according to any one of the preceding claims, characterized in that the partition ( 10 ) is at least partly provided on the cartridge ( 1 ).  
   
   
       5 . Unit according to any one of  claims 1  to  3 , characterized in that the partition ( 10 ) is provided at least partly on the wall of the air circuit ( 8 ).  
   
   
       6 . Unit according to  claim 5 , characterized in that it does not matter whether the partition ( 10 ) is attached to and/or integrally molded with the wall ( 2 ) of the air circuit ( 8 ) in order to form a unitary part.  
   
   
       7 . Unit according to  claim 4 , characterized in that it does not matter whether the partition ( 10 ) is attached to and/or integrally molded with a support ( 3 ) for the cartridge ( 1 ) in order to form a unitary part.  
   
   
       8 . Unit according to any one of the preceding claims, characterized in that the partition ( 10 ) is interposed between a substrate ( 4 ) of the cartridge ( 1 ) and the volume in which air flows through the circuit ( 8 ), the diffusion chamber ( 11 ) forming a housing for accommodating the substrate ( 4 ).  
   
   
       9 . Unit according to  claim 8 , characterized in that a receptacle for accommodating the substrate ( 4 ) is removeably attached to the support ( 3 ), the wall of this receptacle constituting said permeable partition ( 10 ).  
   
   
       10 . Unit according to any one of the preceding claims, characterized in that the cartridge ( 1 ) is fitted into the wall of a module ( 28 ) that houses at least air heat treatment means ( 30 ,  31 ).  
   
   
       11 . Unit according to any one of the preceding claims, characterized in that the cartridge ( 1 ) is fitted into the wall of a duct ( 26 ,  35 ) that is located upstream and/or downstream of a module ( 28 ) that houses at least air heat treatment means ( 30 ,  31 ).  
   
   
       12 . Unit according to any one of the preceding claims, characterized in that the cartridge ( 1 ) is an interchangeable removable cartridge provided with means for reversibly fastening it to the wall ( 2 ).  
   
   
       13 . Unit according to any one of the preceding claims, characterized in that the cartridge ( 1 ) is equipped with reversible means for joining it between a support ( 3 ) and a substrate ( 4 ), the latter being interchangeable.