STRUCTURE OF HEADER-TANK FOR A HEAT EXCHANGER
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.