Heat Exchanger

Abstract

The invention relates to a heat exchanger with a first collector ( 10 ), in which chambers ( 44, 46 ), separated by at least one longitudinal separating wall, are formed and comprising a tube-fin or tube block ( 14 ), with tubes ( 16 ), or tubed devices opening into the first collector ( 10 ), fixed to the longitudinal separating wall ( 42 ), said longitudinal separating wall ( 42 ), comprising slots ( 50 ), whereby tubes ( 16 ) or tubed devices in the block ( 14 ) comprise slots ( 54 ) or shoulders, each of which is positioned in the region of a corresponding slot ( 36 ) of the longitudinal separating wall ( 42 ) and a method for production of a heat exchanger.

1 . A heat exchanger having a first collector, in which chambers, separated by means of a longitudinal dividing wall, are formed, and having a tube rib or tube block which has tubes or tube devices which open into the first collector and which are secured to the longitudinal dividing wall, the longitudinal dividing wall having slots, wherein tubes or tube devices of the block have slots or shoulders which are each positioned in the region of the respective slots of the longitudinal dividing wall.  
   
   
       2 . The heat exchanger as claimed in  claim 1 , wherein a plurality of tubes or tube devices, or all of said tubes or tube devices, have a plurality of ducts or component tubes or of chambers which are spaced apart transverse in relation to their longitudinal axis and open into various chambers, separated by means of the longitudinal dividing wall, of the first collector.  
   
   
       3 . The heat exchanger as claimed in  claim 1 , having a first collector and a tube rib or tube block, the first collector having a base and at least one longitudinal dividing wall for forming separate chambers in the interior of the first collector, and the block having tubes, in particular tubes which are formed in one piece and each have at least two chambers or ducts or component tubes which are arranged spaced apart perpendicularly in relation to the respective tube longitudinal axis, the tubes being inserted by their first end into the base of the first collector in such a way that in each case two different ducts of the respective same tube open into different chambers, separated by the longitudinal dividing wall of the collector, of the first collector, and the longitudinal dividing wall being provided on the side facing the base with slots in the region of the tubes, wherein the tubes are provided between the ducts or component tubes which open into the chambers in the region between their first end and a slot or shoulder.  
   
   
       4 . The heat exchanger as claimed in  claim 3 , wherein the dividing wall and tubes of the block are configured and arranged in such a way that slots in the dividing wall are each arranged in the region of a slot in a tube of the block.  
   
   
       5 . The heat exchanger as claimed in  claim 1 , wherein the tubes have a web between the tube ducts, in which web the slot or shoulder is provided in the region of the first tube end .  
   
   
       6 . The heat exchanger as claimed in  claim 5 , wherein the slots in the tubes are provided in the webs in the tubes.  
   
   
       7 . The heat exchanger as claimed in  claim 1 , wherein the slots in the tubes are bounded at least partially in the lateral direction by wall sections which bound ducts provided in the tubes or by wall sections of the component tubes.  
   
   
       8 . The heat exchanger as claimed in  claim 1 , wherein the direction of the slot widths of the slots in the dividing wall extend essentially perpendicularly to the direction of the slot widths of the slots in the tubes of the block.  
   
   
       9 . The heat exchanger as claimed in  claim 1 , wherein the slot width of the slots provided in the dividing wall corresponds in each case essentially to the material thickness, in particular wall thickness of the web, of the tube which is respectively assigned to this web, in the region of the tube which bounds the slot in the tube, or is larger.  
   
   
       10 . The heat exchanger as claimed in  claim 1 , wherein the slot width of the slots provided in the tubes corresponds in each case essentially to the wall thickness of the dividing wall in the region of the slots in the dividing wall, or is larger.  
   
   
       11 . The heat exchanger as claimed in  claim 1 , wherein the tubes are each soldered to the dividing wall in the region of the slots of said tubes or the boundaries of these slots or at least some of these boundaries, specifically in particular in the region of the slots in the dividing wall or the boundaries of these slots in the dividing wall or at least some of these boundaries of the slots in the dividing wall, in such a way that in this region the chambers which are separated by means of the dividing wall are sealed.  
   
   
       12 . The heat exchanger as claimed in  claim 1 , wherein cavities are formed by means of the slots in the longitudinal dividing wall and by means of the slots in the tubes.  
   
   
       13 . The heat exchanger as claimed in  claim 1 , wherein a respective slot in the longitudinal dividing wall and a respective slot in a tube overlap, specifically in particular in such a way that the coverage or overlap is larger—in particular viewed in the longitudinal direction of the tubes, than the length or depth of the respective slot in the longitudinal dividing wall in this direction.  
   
   
       14 . The heat exchanger as claimed in  claim 1 , wherein the tubes are configured as flat tubes.  
   
   
       15 . The heat exchanger as claimed in  claim 1 , wherein ducts of various tubes or the component tubes of the tubes form at least two rows of tubes.  
   
   
       16 . The heat exchanger as claimed in  claim 1 , wherein intermediate spaces for an air flow are formed between adjacent tubes.  
   
   
       17 . The heat exchanger as claimed in  claim 1 , wherein the tubes open with their second ends, facing the first ends, into a second collector.  
   
   
       18 . A method for manufacturing a heat exchanger which has a first collector which is provided with a base and in which at least two different chambers are formed by means of at least one longitudinal dividing wall which extends to the base, and which has a tube block or tube rib block with a plurality of tubes, which are in particular arranged in parallel with one another, these tubes being in particular each formed in one piece and having in each case at least two ducts or component tubes which are arranged in particular parallel to one another and open into various chambers of the first collector, a slot being provided in the end region of the tubes facing the first collector between the ducts or component tubes of this respective tube, and the dividing wall being provided with slots in its end region facing the block, having the steps: 
 the tubes are slid into openings which are provided in the base of the first collector, when the base is separated from the first collector in order to form the first assembly (first step);    the dividing wall is inserted into the first collector, the base of the first collector being separated from the collector during this insertion process in order to produce a second assembly (second step);    the first step being independent of the second step so that no particular sequence is predefined;    the first and second assemblies are assembled in such a way that the slots in the tubes are each positioned in the region of an assigned slot in the dividing wall, specifically in particular so as to form a cavity (third step);    
   
   
       19 . The method as claimed in  claim 18 , wherein after the insertion process into the base of the first collector, the tubes (in the first step) are widened in order to produce a press fit in the base or in order to increase the retaining force of such a press fit or in order to reduce the dimensions of a soldering gap.  
   
   
       20 . The method as claimed in  claim 18 , wherein the first and second assemblies are joined together in the third step in such a way that in particular those slot depths of the slots in the tubes and the slots in the longitudinal dividing wall which are located in the direction of the longitudinal axes of the tubes are respectively larger than the depth, located in this direction, of the cavity formed respectively between these slots.  
   
   
       21 . The method as claimed in  claim 18 , wherein the longitudinal dividing wall is soldered to the tubes, in each case in the region of the slots, to be precise in particular in the region of the boundaries of the respective slots.  
   
   
       22 . (canceled)