Casing for holding a fluid for a heat exchanger, method for producing a casing of this type and heat exchanger

Abstract

The invention relates to a casing for holding a coolant for heat exchanger ( 1 ) for motor vehicles, said casing having two side walls ( 22, 24 and 22 a, 24 a ) two front walls ( 26, 28, and 26 a, 28 a ), a cover ( 18 and 18 a ) and a base ( 20 and 20 a ) lying opposite the cover ( 18 and 18 a ), said base being provided with one or more openings ( 60 ) for receiving tubes, in particular connecting tubes such as flat tubes. According to the invention, the base ( 20 and 20 a ) and at least one of the two side walls ( 26, 28 and 26 a, 28 a ) consist of a one-piece shaped part, produced in a forming method.

1 . A casing for holding a coolant for a heat exchanger for motor vehicles comprising four walls, consisting of two side walls and two end walls, a cover, and a base arranged opposite the cover, in which one or more openings are provided for holding connecting tubes, wherein the base and at least one of the two end walls are components of a one-piece molded part formed by a shaping method. 
   
   
       2 . The casing according to  claim 1 , wherein the base and the two end walls are components of a one-piece molded part formed by the shaping method. 
   
   
       3 . The casing according to  claim 1 , wherein the base, the two end walls and at least one of the side walls are components of a one-piece molded part formed by the shaping method. 
   
   
       4 . The casing according to  claim 1 , wherein the shaping method is a drawing method. 
   
   
       5 . The casing according to  claim 1 , wherein the molded part is drawn and/or hydro-shaped, and/or mold-pressed molded part. 
   
   
       6 . The casing according to  claim 1 , wherein the one or more end walls have a folding or bending line along which the one or more end walls can be folded or bent. 
   
   
       7 . The casing according to  claim 1 , wherein the folding or bending line runs at a given height of the one or more end walls transverse to a longitudinal direction of the base. 
   
   
       8 . The casing according to  claim 7 , wherein the given height lies at or close to a plane defined by lower edges of the side parts 
   
   
       9 . The casing according to  claim 6 , wherein a first region of the one or more end walls underneath the folding or bending line is drawn, and a second region of the one or more end walls above the folding or bending line is folded or bent about this line. 
   
   
       10 . The casing according to  claim 1 , wherein the one or more end walls are drawn all together. 
   
   
       11 . The casing according to  claim 1 , wherein the one or more end walls have at least one bracket and/or assembly that is arranged on the side and/or that can be angled. 
   
   
       12 . The casing according to  claim 11 , wherein the one or more brackets and/or assemblies are angled so that they are arranged essentially parallel to one of the side walls and/or are connected by a solder connection with one of the side walls. 
   
   
       13 . The casing according to  claim 1 , wherein at least one essentially triangular recess is formed in the molded part in a transition region between the base and the one or more end walls. 
   
   
       14 . The casing according to  claim 1 , wherein the cover has at least one first recess in which a first of the end walls is held, but, the first recess and a second recess that is different from the first recess and in which a second end wall spaced apart relative to the first end wall is held. 
   
   
       15 . The casing according to  claim 1 , wherein the molded part is made from a one-piece, pre-punched sheet metal part. 
   
   
       16 . A heat exchanger for a motor vehicle, comprising a tube-rib block and a casing comprising four walls, consisting of two side walls and two end walls, a cover, and a base arranged opposite the cover, in which one or more openings are provided for holding connecting tubes, wherein the base and at least one of the two end walls are components of a one-piece molded part formed by a shaping method, wherein the tubes of the tube-rib block open, in the region of the base of the casing into the casing. 
   
   
       17 . A method for producing a casing for holding a coolant, for a heat exchanger wherein an inner space of the casing is defined by walls that are, two side walls, and two end walls, the casing comprising a cover, and a base arranged opposite the cover, and a one-piece part that has the base and at least one of the two end walls comprising producing the one-piece part by a drawing method, further processing the one-piece part by a shaping method including drawing, and/or hydro-shaping, and/or mold pressing, wherein the one or more end walls are formed at least partially, and connecting the one-piece part by solder-plating, to another part or additional parts that form the other wall or walls defining the inner space of the casing for forming the casing. 
   
   
       18 . The method according to  claim 17 , wherein the one or more end walls are formed all together by the shaping method. 
   
   
       19 . The method according to  claim 17 , wherein the one or more end walls are formed only up to a partial height by the shaping method and for a remaining height by folding or bending.