Heat exchanger in particular for motor vehicles

Abstract

The invention relates to a heat exchanger ( 1 ), in particular for a motor vehicle, comprising a heat exchange assembly with a primary side, through which a first medium flows and a secondary side, through which a second medium flows and a housing sleeve with an inlet and an outlet for a second medium.

1 . A heat exchanger, in particular for a motor vehicle, having a heat exchanger block which has pipes through which a first medium can flow on the primary side, and pipes around which a second medium can flow on the secondary side, said pipes having flow ducts and pipe ends, at least one end piece which holds the pipe ends and each have at least one base plate, diverter plate and cover plate as well as at least one inlet chamber and/or outlet chamber which is connected to one, or in each case to one, end piece, it being possible to conduct the first medium from the inlet chamber to the outlet chamber through the flow ducts, and with a housing casing which surrounds the pipes and has an inlet and an outlet for the second medium.  
   
   
       2 . The heat exchanger as claimed in  claim 1 , wherein the pipes are embodied in particular as extruded flat pipes.  
   
   
       3 . The heat exchanger as claimed in  claim 1 , wherein the pipes each have a plurality of flow ducts.  
   
   
       4 . The heat exchanger as claimed in  claim 1 , wherein the heat exchanger block has at least two end pieces.  
   
   
       5 . The heat exchanger as claimed in  claim 1 , wherein the housing casing is arranged between two end pieces.  
   
   
       6 . The heat exchanger as claimed in  claim 1  wherein at least two plates of an end piece are embodied in an integral fashion.  
   
   
       7 . The heat exchanger as claimed in  claim 1 , wherein the housing casing is embodied as a single-part or multipart sheet-metal casing.  
   
   
       8 . The heat exchanger as claimed in that  claim 1 , wherein the housing casing is connected in a materially joined fashion, in particular soldered, to the at least one end piece.  
   
   
       9 . The heat exchanger as claimed in  claim 1 , wherein the housing casing has an essentially rectangular cross section with four sides.  
   
   
       10 . The heat exchanger as claimed in  claim 1 , wherein the inlet and the outlet are arranged on opposite sides of the housing casing.  
   
   
       11 . The heat exchanger as claimed in  claim 1 , wherein the inlet and the outlet are arranged on the same side of the housing casing.  
   
   
       12 . The heat exchanger as claimed in  claim 1 , wherein the inlet and the outlet are arranged at opposite ends of the housing casing.  
   
   
       13 . The heat exchanger as claimed in  claim 1 , wherein distributor and collector chambers are formed in the housing casing in the region of the inlet and outlet.  
   
   
       14 . The heat exchanger as claimed in  claim 1 , wherein corrugated pieces of sheet metal with longitudinal ducts are arranged between the pipes.  
   
   
       15 . The heat exchanger as claimed in  claim 14 , wherein the corrugated pieces of sheet metal have a longitudinal extent which corresponds to the distance between the inlet and outlet.  
   
   
       16 . The heat exchanger as claimed in  claim 1 , wherein the corrugated pieces of sheet metal are embodied in a rectangular shape and leave an approximately rectangular inflow and outflow region between the pipes.  
   
   
       17 . The heat exchanger as claimed in  claim 1 , wherein the corrugated pieces of sheet metal are embodied in the form of a parallelogram and leave approximately triangular or trapezoidal inflow and outflow regions between the pipes.  
   
   
       18 . The heat exchanger as claimed in  claim 1 , wherein the inlet and the outlet are arranged opposite one another, and in that a dividing wall is left between the inlet and outlet in order to form an inflow region and an outflow region, and a diverter section is left at the end of the housing casing facing away from the inlet and outlet, and in that the housing casing can be configured for at least a dual flow in the longitudinal direction on the secondary side.  
   
   
       19 . The heat exchanger as claimed in  claim 1 , wherein the second medium is guided essentially transversely with respect to the longitudinal direction of the pipes through the block.  
   
   
       20 . The heat exchanger as claimed in  claim 19 , wherein the second medium can be diverted at least once in the longitudinal direction, and the heat exchanger block can be configured for at least dual flow.  
   
   
       21 . The heat exchanger as claimed in  claim 1 , wherein the housing casing with the pipes and the block forms an inlet chamber and an outlet chamber for the second medium, which chambers extend in the longitudinal direction of the pipes.  
   
   
       22 . The heat exchanger as claimed in  claim 21 , wherein inlet and outlet ducts for the second medium are arranged at the end pieces, said inlet and outlet ducts communicating with the inlet and outlet chambers.  
   
   
       23 . The heat exchanger as claimed in  claim 1 , wherein at least one diversion box is arranged in the housing casing, and at least one transversely extending dividing wall is arranged between the pipes.  
   
   
       24 . The heat exchanger as claimed in  claim 1 , wherein corrugated ribs or turbulence inserts which form transverse ducts for the second medium are arranged between the pipes.  
   
   
       25 . The heat exchanger as claimed in  claim 1 , wherein the heat exchanger block is configured for a single flow on the primary side.  
   
   
       26 . The heat exchanger as claimed in  claim 1 , wherein the heat exchanger block can be configured for a dual flow or more on the primary side.  
   
   
       27 . The heat exchanger as claimed in  claim 1 , wherein the first medium is a refrigerant which can be operated in particular in dual phase or supercritically.  
   
   
       28 . The heat exchanger as claimed in  claim 1 , wherein the second medium is a fluid, and in particular a fluid coolant.