Heat exchanger

Abstract

A heat exchanger includes a pair of tanks, and a heat exchanger core arranged therebetween and having tubes and fins. The tanks includes a tube plate connected with the tubes, a tank plate and at least two partition plates, where the tube plate, the tank plate and the partition plates are integrally fixed by blazing after the tube plate and the tank plate are temporarily assembled with each other to temporarily fix the partition plates between the tube plate and the tank plate. At least one of the tube plate and the tank plate is formed to have a misalignment preventing portion for preventing misalignment in a longitudinal direction of the tube plate and the tank plate between the temporarily assembled tube plate and tank plate.

1 . A heat exchanger comprising: 
 a pair of tanks; and    a heat exchanger core arranged between the tanks and having a plurality of tubes and fins whose one end portions are fluidically connected with one of the tanks and the other end portions are fluidically connected with the other of the tanks, wherein    the tanks includes a tube plate connected with the tubes, a tank plate and at least two partition plates where the tube plate, the tank plate and the partition plates are integrally fixed by blazing after the tube plate and the tank plate are temporarily assembled with each other to temporarily fix the partition plates between the tube plate and the tank plate, wherein    at least one of the tube plate and the tank plate is formed to have a misalignment preventing portion for preventing misalignment in a longitudinal direction of the tube plate and the tank plate between the temporarily assembled tube plate and tank plate.    
   
   
       2 . The heat exchanger according to  claim 1 , wherein 
 the misalignment preventing portion is a first projecting portion formed on an end portion of one of the tube plate and the tank plate by cutting off a part of the end portion, and the first projecting portion is bent at an axial outer side of an end portion of the other of the tube plate and the tank plate so that the first projecting portion is contactable with the end portion of the other of the tube plate and the tank plate.    
   
   
       3 . The heat exchanger according to  claim 1 , wherein 
 the misalignment preventing portion is a second projecting portion formed on an end portion of one of the tube plate and the tank plate, and the second projecting portion is projected inwardly from an inner surface of the end portion at an axial outer side of an end portion of the other of the tube plate and the tank plate to be contactable with the end portion of the other of the tube plate and the tank plate.    
   
   
       4 . The heat exchanger according to  claim 1 , wherein 
 the misalignment preventing portion is formed on the tube plate and the tank plate to form at least one of a projecting portion, a depression and an opening for fixing the partition plates so that a relative movement between the tube plate and the tank plate in the longitudinal direction can be restricted by the partition plates.