Heat exchanger arrangement for securing to an appliance wall

Abstract

The invention relates to a heat exchanger arrangement (10) for securing to an appliance wall, comprising a housing (12), there being formed in the housing a main flow path (18) in which a liquid heat exchanger (20) is arranged, the main flow path (18) also having arranged in it an air fan (16) which guides the air flow over the liquid heat exchanger (20). The invention is characterized in that there is provided an overpressure flap (50) which, in the event of an overpressure, permits an opening in front of the liquid heat exchanger (20) and in front of the air fan (16), and hence forms a bypass to the main flow path (18).

1 - 18 . (canceled) 
     
     
         19 . A heat exchanger arrangement ( 10 ) for attachment to an appliance wall, comprising: a housing ( 12 ), which housing ( 12 ) has a main flow path ( 18 ) formed therein in which a liquid heat exchanger ( 20 ) is arranged, wherein an air conveyor ( 16 ) is furthermore arranged in said main flow path ( 18 ), which air conveyor ( 16 ) acts to pass the air flow through said liquid heat exchanger ( 20 ), characterized in that an overpressure flap ( 50 ) is provided which, in the event of overpressure, allows an opening upstream of said liquid heat exchanger ( 20 ) and upstream of said air conveyor ( 16 ) and thus forms a bypass from said main flow path ( 18 ). 
     
     
         20 . The heat exchanger arrangement as claimed in claim  1 , characterized in that a drip tray ( 40 ) is provided which is adapted to absorb condensation water formed on the liquid heat exchanger ( 20 ), with an air guide element ( 42 ) being furthermore provided to cause air to be branched off upstream of said liquid heat exchanger ( 20 ) and to be passed over said drip tray ( 40 ), resulting in any moisture in the drip tray ( 40 ) to be absorbed by the air flow. 
     
     
         21 . The heat exchanger arrangement as claimed in claim  1 , characterized in that said housing ( 12 ) includes fastening means ( 54 ) with which said housing ( 12 ) can be releasably fastened to an appliance wall without the use of tools. 
     
     
         22 . The heat exchanger arrangement as claimed in  claim 21 , characterized in that said fastening means comprise hooks ( 54 ). 
     
     
         23 . The heat exchanger arrangement as claimed in  claim 21 , characterized in that said fastening means comprise Velcro elements. 
     
     
         24 . The heat exchanger arrangement as claimed in  claim 19 , characterized in that said air guide element ( 42 ) is a sheet metal with openings. 
     
     
         25 . The heat exchanger arrangement as claimed in  claim 19 , characterized in that said openings and said main flow path ( 18 ) and said air conveyor ( 16 ) are matched to one another in such a way that a volume flow will be directed over the drip tray ( 42 ) that is less than 20% of the volume flow of said main flow path ( 18 ). 
     
     
         26 . The heat exchanger arrangement as claimed in  claim 19 , characterized in that said overpressure flap ( 50 ) will open at a pressure that corresponds to the dynamic pressure prevailing when the air conveyor ( 16 ) is not in operation. 
     
     
         27 . The heat exchanger arrangement as claimed in  claim 19 , characterized in that said air conveyor ( 16 ) and said liquid heat exchanger ( 20 ) are arranged such that said liquid heat exchanger ( 20 ) is disposed on the suction side of said air conveyor ( 16 ). 
     
     
         28 . A cooling system comprising the heat exchanger arrangement as claimed in  claim 19 , further including a cooler unit ( 100 ) for cooling the cooling fluid passed through the liquid heat exchanger ( 74   a,    74   b,    74   c ) and a connecting line ( 80 ) for connecting said liquid heat exchanger ( 74   a,    74   b,    74   c ) to said heat exchanger arrangement ( 10 ). 
     
     
         29 . The cooling system as claimed in  claim 28 , characterized in that said connecting line ( 80 ) comprises at least one fluid conduit ( 82   a,    82   b ) for conducting the cooling fluid, with connection terminals ( 84   a,    84   b,    84   c ) that include connecting pieces for connection to said liquid heat exchanger ( 74   a,    74   b,    74   c ) of said heat exchanger arrangement ( 10 ) being connected to said fluid conduct ( 82   a,    82   b ). 
     
     
         30 . The cooling system as claimed in  claim 29 , characterized in that said connecting line ( 80 ) comprises a supply line ( 82   a ) and a return line ( 82   b ), which lines are connected to said cooling unit ( 100 ), said connection terminals ( 84   a,    84   b,    84   c ) being designed in such a manner that a plurality of liquid heat exchangers ( 74   a,    74   b,    74   c ) is connected in parallel, with each heat exchanger arrangement ( 70   a,    70   b,    70   c ) being assigned a connection terminal ( 84   a,    84   b,    8   ac ). 
     
     
         31 . The cooling system as claimed in  claim 30 , characterized in that a plurality of heat exchanger arrangements ( 70   a,    70   b,    70   c ) is arranged in a room ( 120 ) and is connected to said cooling unit via connection terminals ( 202 ,  204 ,  206 ,  208 ), which cooling unit discharges the exhaust air to the outside of the room, or which is located in particular outside the room ( 120 ) that contains said heat exchanger arrangements ( 70   a,    70   b,    70   c ), wherein a temperature sensor ( 88 ) is arranged in said room, which sensor measures the room temperature and transmits it to the controller ( 90 ) for said cooling unit ( 100 ). 
     
     
         32 . The cooling system as claimed in  claim 31 , characterized in that a humidity sensor is provided in said room ( 120 ). 
     
     
         33 . The cooling system as claimed in  claim 31 , characterized in that said connecting line ( 80 ) comprises a base terminal ( 86 ) which houses said temperature sensor ( 88 ) and/or said humidity sensor, which sensor is connected to a controller ( 90 ) of said cooling unit ( 100 ) via said base terminal ( 86 ). 
     
     
         34 . The cooling system as claimed in  claim 33 , characterized in that said base terminal ( 86 ) has a connection for the input of a power supply ( 110 ). 
     
     
         35 . The cooling system as claimed in  claim 34 , characterized in that said connection terminal ( 200 ) has a power connection ( 212 ,  214 ) for connection to a preceding and/or a subsequent connection terminal ( 200 ) or base terminal ( 86 ). 
     
     
         36 . The cooling system as claimed in  claim 35 , characterized in that said connection terminal ( 200 ) has electrical connections ( 210 ) for connection to said air conveyor ( 16 ,  76   a,    76   b,    76   c ).