Heat exchanger for a motor vehicle

Abstract

A heat exchanger for a motor vehicle, the heat exchanger including a collector extending in a longitudinal direction and having a bottom and a collector box, at least two connections provided in the collector box for feeding and draining a fluid, a plurality of exchange tubes ending in the bottom of the collector, and a separator wall separating the collector into a first partial chamber on the inlet side and a second partial chamber on the outlet side, wherein the separating wall adjoins the bottom while dividing the bottom substantially symmetrically along a center line running in the longitudinal direction, and wherein the separating wall comprises a projection above the bottom, wherein at least one of the centers of the two connections has an offset relative to the center line.

1 . A heat exchanger for a motor vehicle, comprising:
 a collector extending in a longitudinal direction and having a base and a collector box;   at least two connections arranged in the collector box that are configured to supply and discharge a fluid;   a plurality of exchanger tubes emptying into the base of the collector; and   a partition wall configured to divide the collector into a first partial chamber on an inlet side and a second partial chamber on an outlet side, the partition wall adjoining the base, while dividing the base largely symmetrically along a center line running in the longitudinal direction, the partition wall having a projection arranged above the base,   wherein at least one of the center points of the two connections has an offset relative to the center line.   
     
     
         2 . The heat exchanger according to  claim 1 , wherein at least one of the connections is disposed on the collector box, a free opening thereof spanning the center line, due to the projection. 
     
     
         3 . The heat exchanger according to  claim 1 , wherein a connecting line of the center points of the connections forms an angle of at least five degrees with the center line. 
     
     
         4 . The heat exchanger according to  claim 1 , wherein the offset is at least one fourth of a diameter of a free opening of the connection. 
     
     
         5 . The heat exchanger according to  claim 1 , wherein a diameter of a free opening of the at least one connection is greater than a maximum width of the partial chamber connected thereto. 
     
     
         6 . The heat exchanger according to  claim 1 , wherein, in an area of one of the connections, the projection of the partition wall has a bend around the longitudinal axis which is substantially uniform over the area. 
     
     
         7 . The heat exchanger according to  claim 6 , wherein the projection has a convex portion oriented away from the bend in the area of the other connection. 
     
     
         8 . The heat exchanger according to  claim 6 , wherein the total bend runs along at least half the length of the partition wall. 
     
     
         9 . The heat exchanger according to  claim 1 , wherein the partition wall has a plurality of notches in an area of its abutment with the base for surrounding the protrusions of the exchanger tubes. 
     
     
         10 . The heat exchanger according to  claim 1 , wherein the partition wall has at least one tab or a plurality of tabs in an area of its abutment with the collector box opposite the base for attachment to the collector box. 
     
     
         11 . The heat exchanger according to  claim 10 , wherein the partition wall has a projection beneath the at least one tab for plastic press-fit stemming of the partition wall during an assembly. 
     
     
         12 . The heat exchanger according to  claim 11 , wherein the projection has a section that is substantially perpendicular to an assembly direction of the partition wall. 
     
     
         13 . The heat exchanger according to  claim 1 , wherein the exchanger tubes are designed as flat tubes, each having a forward-directed section connectable to the first partial chamber and a backward-directed section connectable to the second partial chamber. 
     
     
         14 . The heat exchanger according to  claim 13 , further comprising a second collector configured to deflect the fluid from the first section of the flat tubes to the second section of the flat tubes. 
     
     
         15 . The heat exchanger according to  claim 1 , wherein at least the collector box, the connections, the base, the partition wall, and the exchanger tubes are soldered to each other in a common method step or in multiple method steps in a soldering furnace.