Heat exchanger with reinforcing plate

Abstract

The present invention relates to a heat exchanger ( 1 ) comprising: a tube bundle ( 2 ) comprising a plurality of tubes ( 2 ) placed parallel to one another, said tube bundle ( 2 ) comprising fins ( 6 ) placed between the tubes ( 2 ); two collectors ( 3 ), one collector ( 3 ) being placed on both sides of the tube bundle ( 2 ), each collector ( 3 ) comprising a collector plate ( 4 ), said collector plate ( 4 ) comprising orifices inside which the ends of the tubes ( 2 ) are introduced, and a rim ( 41 ) forming a groove ( 42 ) which is designed to receive a cover ( 8 ); and at least one reinforcement plate ( 10 ) placed between a collector plate ( 4 ) and the fins ( 6 ), parallel to the collector plate ( 4 ) and brazed against at least part of the tubes ( 2 ) of the tube bundle ( 2 ) and said collector plate ( 4 ), the at least one reinforcement plate ( 10 ) comprising a lateral wall ( 101 ) which projects in the direction of the collector plate ( 4 ), and covers the rim ( 41 ) of the collector plate ( 4 ) at least partially, said lateral wall ( 101 ) being brazed against said rim ( 41 ) of the collector plate ( 4 ) in order to secure the reinforcement plate ( 10 ) on the collector plate ( 4 ).

1 . A heat exchanger comprising:
 a tube bundle comprising a plurality of tubes placed parallel to one another, and fins placed between the tubes;   two collectors, one collector being placed on both sides of the tube bundle, each collector comprising a collector plate,   said collector plate comprising orifices inside which the ends of the tubes are introduced, and a rim forming a groove configured to receive a cover; and   at least one reinforcement plate placed between one of the collector plates and the fins, parallel to the collector plate and brazed against at least part of the tubes of the tube bundle and said collector plate,   wherein the at least one reinforcement plate comprises a lateral wall which projects in the direction of the collector plate, and covers the rim of the collector plate at least partially, said lateral wall being brazed against said rim of the collector plate in order to secure the reinforcement plate on the collector plate.   
     
     
         2 . The heat exchanger as claimed in  claim 1 , wherein the reinforcement plate comprises two parallel tongues and at least one base connecting the two tongues at one of their ends, such as to form a space for receipt of the tubes, the tongues being in contact with the edge of the tubes. 
     
     
         3 . The heat exchanger as claimed in  claim 2 , wherein the tongues of the reinforcement plate comprise notches which are complementary with the edge of the tubes. 
     
     
         4 . The heat exchanger as claimed in  claim 2 , wherein the space for receipt of the tubes comprises braces which pass between two tubes, and connect the tongues of the reinforcement plate. 
     
     
         5 . The heat exchanger as claimed in  claim 4 , wherein the braces of the space for receipt of the tubes fill the space between two tubes, and are brazed with said tubes. 
     
     
         6 . The heat exchanger as claimed in  claim 1 , comprising, at one collector at least, two reinforcement plates which are placed opposite one another, each on a lateral side of the heat exchanger. 
     
     
         7 . The heat exchanger as claimed in  claim 1 , comprising, at one collector at least, a single reinforcement plate, the lateral wall of which is brazed with the rim of the collector plate around the entire periphery of said collector plate. 
     
     
         8 . The heat exchanger as claimed in  claim 2 , wherein the reinforcement plate comprises a skirt around at least part of the periphery of the space for receipt of the tubes, said skirt projecting in the direction of the fins. 
     
     
         9 . The heat exchanger as claimed in  claim 8 , wherein the skirt has a height corresponding to at least the distance between the reinforcement plate and the fins. 
     
     
         10 . The heat exchanger as claimed in  claim 1 , wherein the lateral wall of the reinforcement plate additionally comprises crimping lugs.