Side plate with reduced warp for heat exchanger and heat exchanger using the same

Abstract

A warp of a side plate in the lengthwise direction is reduced by means of a simple shape formed by pressing without increasing a press machine in size. A side plate, for a heat exchanger, to be arranged at the end of a core section 13 composed of tubes 11 and fins 12 has a long and narrow shape with a U-shaped section formed by a bottom section 21 and bent sections 22 and 23 formed by bending both ends of the bottom section 21 in the width direction, and a plurality of recesses 24 extending in the width direction are formed by pressing the bottom section 21 at predetermined intervals c.

1 . Side plates for a heat exchanger arranged at ends of a core section comprising tubes and fins, wherein the side plates with a U shaped section comprising a bottom section and bent sections formed by bending both ends of the bottom section in a width direction thereof, and 
 a plurality of recesses extending in the width direction are formed by pressing the bottom section at predetermined intervals.    
     
     
         2 . The side plates for a heat exchanger as set forth in  claim 1 , wherein the recesses are formed on an inner surface of the bottom section.  
     
     
         3 . The side plates for a heat exchanger as set forth in  claim 1 , wherein the recesses are formed on an outer surface of the bottom section.  
     
     
         4 . The side plates for a heat exchanger as set forth in  claim 1 , wherein each of the recesses has an arc like section.  
     
     
         5 . The side plates for a heat exchanger as set forth in  claim 1 , wherein the recesses are formed at the same time that the bent sections are formed by bending.  
     
     
         6 . The side plates for a heat exchanger as set forth in  claim 1 , wherein the recesses are formed after the bent sections are formed by bending.  
     
     
         7 . A heat exchanger comprising a core section including tubes and fins and side plates arranged at the ends of the core section, wherein the heat exchanger comprises the side plates for a heat exchanger as set forth in  claim 1 .  
     
     
         8 . The heat exchanger as set forth in  claim 7 , wherein: 
 header tanks with which ends of the tubes are respectively communicated are arranged on both ends of the tube in the lengthwise direction;    the fins are corrugated fins;    the tubes, the corrugated fins, and the header tanks are integrally joined by brazing; and    each of the side plates is integrally joined by brazing to the corrugated fin located on the end of the core section and to ends of the header tanks.