HEAT EXCHANGER

摘要

A heat exchanger comprises a plurality of tubes layered with fins intervened between them, header pipes disposed on the end portions of the tubes, and side plates for holding the tube layer, wherein each of the side plates (8) is connected to a side plate insertion hole (10) formed on the header pipe (3) or (4) by inserting its end portion (82) into the side plate insertion hole and forming a taper on the end portion (82) of the side plate (8) to decrease a thickness toward the leading end (82a) . The end portions (82) of the side plates (8) are tapered toward the leading ends to decrease a width, contact portions (81a) are formed on the side plate to contact with the outer surface of the header pipes (3), (4), and the contact portions are brazed with the outer surface of the header pipe. Further, a stopper means is formed on the end portions of the side plates to prevent the end portions of the side plates from coming out of the side plate insertion holes (10) .