Structure of header-tank for a heat exchanger

Abstract

The structure of header-tank for a heat exchanger comprises a plurality of tubes which are arranged in a row along an air-blowing direction to be spaced apart from each other at a certain intervals; fins which are interposed between the tubes so as to increase a heat exchange surface area with respect to air flowing between the tubes; and a pair of header-tanks which comprises a header having a tube insertion hole and a tank coupled with the header and in which heat exchange medium is flowed, wherein the header is bent at a surface, in which the tube insertion hole is formed, so as to form a bending portion in a height direction, and the bending portion is formed with a plurality of taps 5 , and the tank is formed with a coupling portion coupled to the bending portion of the header, and a coupling groove which is recessed inside tank at the same position as the tap along a longitudinal direction and in which the tap is bent and inserted.

1 . A structure of header-tank for a heat exchanger, comprising:
 a plurality of tubes which are arranged in a row along an air-blowing direction to be spaced apart from each other at a certain intervals;   fins which are interposed between the tubes so as to increase a heat exchange surface area with respect to air flowing between the tubes; and   a pair of header-tanks which comprises a header having a tube insertion hole and a tank coupled with the header and in which heat exchange medium is flowed,   wherein the header is bent at a surface, in which the tube insertion hole is formed, so as to form a bending portion in a height direction, and the bending portion is formed with a plurality of taps, and   the tank is formed with a coupling portion coupled to the bending portion of the header, and a coupling groove which is recessed inside tank at the same position as the tap along a longitudinal direction and in which the tap is bent and inserted.   
   
   
       2 . The structure of header-tank as set forth in  claim 1 ,
 wherein the header is formed by bending a single plate material so that the bending portion is formed at both ends, and provided with a partition wall extended in the height direction at a center portion thereof so as to form a passage in two files.   
   
   
       3 . The structure of header-tank as set forth in  claim 1 ,
 wherein at least one or more auxiliary groove is formed between the adjacent coupling grooves.   
   
   
       4 . The structure of header-tank as set forth in  claim 3 ,
 wherein the auxiliary groove has the same shape as the coupling groove.   
   
   
       5 . The structure of header-tank as set forth in  claim 3 ,
 wherein the auxiliary groove is formed to be recessed inside the tank along a circumferential surface of the tank.   
   
   
       6 . The structure of header-tank as set forth in  claim 1 ,
 wherein the header further comprises a restricting protrusion which is protruded inside the header so as to restrict insertion of an end of the coupling portion of the tank to a predetermined depth when the tank is inserted to the bending portion of the header.   
   
   
       7 . The structure of header-tank as set forth in  claim 6 ,
 wherein the restricting protrusion is formed by press-forming.   
   
   
       8 . The structure of header-tank as set forth in  claim 6 ,
 wherein the restricting protrusion is formed between the taps of the bending portion.   
   
   
       9 . The structure of header-tank as set forth in  claim 6 ,
 wherein the restricting protrusion is formed at a lower side of the tap in the longitudinal direction.   
   
   
       10 . The structure of header-tank as set forth in  claim 9 ,
 wherein the tap and the restricting protrusion are formed at an area of the bending portion  18 , which is placed between the tube insertion holes  13  in the longitudinal direction.   
   
   
       11 . The structure of header-tank as set forth in  claim 1 ,
 wherein the coupling groove is connected with an outer surface of the tank through an inclined surface S.   
   
   
       12 . The structure of header-tank as set forth in  claim 11 ,
 wherein the inclined surface S surrounding an end of the coupling groove forms a hook portion which is contacted with the bent tap so as to prevent the header and the tank from being separated.   
   
   
       13 . The structure of header-tank as set forth in  claim 11 ,
 wherein an end of the bending portion is placed at a lower side of the inclined surface and the coupling groove so as to prevent the bending portion from being overlapped with a lower portion of the inclined surface S and the coupling groove of the tank.   
   
   
       14 . The structure of header-tank as set forth in  claim 11 ,
 wherein the bending portion is formed with a plane contact portion having a predetermined distance, which is provided between an end of the bending portion and an end of the restricting protrusion.   
   
   
       15 . The structure of header-tank as set forth in  claim 11 ,
 wherein the tap is formed to be equal to or greater than a width of the inclined surface.   
   
   
       16 . A structure of header-tank for a heat exchanger, comprising:
 a plurality of tubes which are arranged in a row along an air-blowing direction to be spaced apart from each other at a certain intervals;   fins which are interposed between the tubes so as to increase a heat exchange surface area with respect to air flowing between the tubes; and   a pair of header-tanks which comprises a header having a tube insertion hole and a tank coupled with the header and in which heat exchange medium is flowed,   wherein the header is bent at a surface, in which the tube insertion hole is formed, so as to form a bending portion in a height direction, and the bending portion is formed with a plurality of coupling groove formed to be recessed inside the header, and   the tank is formed with a coupling portion coupled to the bending portion of the header, and a tap which is formed at the same position as the coupling groove along a longitudinal direction so as to be bent to and inserted into the coupling groove.   
   
   
       17 . The structure of header-tank as set forth in  claim 16 ,
 wherein the header is formed by bending a single plate material so that the bending portion is formed at both ends, and provided with a partition wall extended in the height direction at a center portion thereof so as to form a passage in two files.   
   
   
       18 . The structure of header-tank as set forth in  claim 16 ,
 wherein at least one or more auxiliary groove is formed between the adjacent coupling grooves.   
   
   
       19 . The structure of header-tank as set forth in  claim 16 ,
 wherein the tank further comprises a restricting protrusion which is protruded inside the tank so as to restrict insertion of an end of the bending portion of the header to a predetermined depth when the header is inserted to the coupling portion of the tank.