KR880000731B1

KR880000731B1 - Heat exchanger & it's manufacturing method

Info

Publication number: KR880000731B1
Application number: KR1019850003827A
Authority: KR
Inventors: 고만명
Original assignee: 주식회사 금성사; 허신구
Priority date: 1985-05-31
Filing date: 1985-05-31
Publication date: 1988-04-29
Also published as: KR860009280A

Abstract

In the heat exchanger, the flow pipe (1) is bent in S-form in many folds to have bends (2) on both sides. The bends (2) on one side however are pressed flat in the middle so that the flat parts can pass through slits (7) between the pipe holes (6) in the radiator leaves (5). The flattened parts are recovered to the original shape after assembling all the radiator leaves. The construction is simple and eliminates the need of sectional bends.

Description

Heat exchanger and its manufacturing method

제1도는 종래 기술에 따른 열교환기의 분해도.1 is an exploded view of a heat exchanger according to the prior art.

제2도는 종래 기술에 따른 방열판의 측면도.2 is a side view of a heat sink according to the prior art.

제3도는 본 발명에 따른 열교환기의 분해도.3 is an exploded view of a heat exchanger according to the present invention.

제4도는 본 발명에 따른 방열판의 측면도.4 is a side view of a heat sink according to the present invention.

제5도는 본 발명에 따른 압착부를 가지는 열교환기용 파이프의 측면도.5 is a side view of a pipe for a heat exchanger having a crimping portion according to the present invention.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

1 : 냉매용 파이프 2 : 절곡부1: refrigerant pipe 2: bend

3 : 압착부 4 : 입구3: crimp part 4: inlet

5 : 방열판 6 : 통공5: heat sink 6: through hole

7 : 절개부7: incision

본 발명은 각종 열교환기의 외주면에 적층 삽입되어 열을 방열시키기 위한 열교환기 및 그 제조 방법에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat exchanger and a method of manufacturing the same for laminating heat to be inserted into outer circumferential surfaces of various heat exchangers.

종래의 열교환기용 파이프와 방열판의 조립방법을 보면 제1도 및 제2도에 나타낸 바와같이, 다층으로 절곡된 파이프(1)의 일측 절곡부(2)를 절단 분리하고 다수의 삽입공(6)이 형성된 방열판(5)을 상기 파이프(1)의 절단부위를 통해 삽입하여 열교환기용 파이프(1)의 외주면에 조밀하게 적층시키고 있다.In the conventional method of assembling a heat exchanger pipe and a heat sink, as illustrated in FIGS. 1 and 2, one side bent part 2 of a pipe 1 bent in multiple layers is cut and separated, and a plurality of insertion holes 6 are provided. The formed heat sink 5 is inserted through the cut portion of the pipe 1 and is densely laminated on the outer circumferential surface of the heat exchanger pipe 1.

이후 절단해냈던 다수의 절곡부(2)는 각각 원래의 위치에서 용접된다.The plurality of bends 2 which have been cut off afterwards are each welded in their original positions.

그러나 , 위와 같은 종래의 방법은 각각의 절곡부(2)를 절단 또는 용접하는데 따른 작업상의 난점과 시간의 낭비는 물론 이거니와, 용접부위중 어느 일부분이라도 용접불량이 발생하였을시는 파이프(1)내의 냉매가스가 밖으로 누출되어 열교환기를 사용하는 제품의 성능에 치명적인 불량요인이 될 수 있다.However, the conventional method as described above not only wastes work time and waste of time by cutting or welding the respective bent portions 2, but also in the case where a poor welding occurs in any part of the welding portion, Refrigerant gas leaks out and can be a fatal defect in the performance of products using heat exchangers.

따라서, 본 발명의 목적은 위와 같은 종래의 설치방법 및 구조에 따른 결점을 완벽하게 해결함과 동시, 파이프의 절곡부위 형상을 변형시키고 이에 대응한 방열판의 구조를 개선함으로서, 그 설치방법 및 구조를 개선하여 제품의 생산성 향상과, 작업능률 및 제품성능의 신뢰도를 향상시키는데 있다.Accordingly, an object of the present invention is to completely solve the deficiencies according to the conventional installation method and structure as described above, by modifying the shape of the bent portion of the pipe and improving the structure of the corresponding heat sink, thereby improving the installation method and structure It is to improve the productivity of the product, and improve the reliability of work efficiency and product performance.

본 발명의 양상에 따르면, 열교환기용 파이프의 일측방절곡부 중앙부위를 길이방향으로 압착하여 압착부를 형성하고, 이러한 압착부를 가진 파이프의 일측과 대응되도록 방열판의 통공 사이에 절개부를 형성하여, 이곳으로 상기 압착부가 통과되도록하여 파이프의 외주면에 길이방향으로 복수개의 방열판을 배열 적층시킨뒤, 파이프의 입구측에 일정한 압력을 가해 상기 압착부를 원래의 형태로 환원시키면서 팽창확관시켜 파이프와 방열판의 밀착성을 높이고 용접공정을 배제한 것으로서, 이를 구체화한 실시 예시도 따라 상세히 설명하면 다음과 같다.According to an aspect of the present invention, by pressing the central portion of the one-sided bent portion of the heat exchanger pipe in the longitudinal direction to form a crimp, and forming a cutout between the holes of the heat sink to correspond to one side of the pipe having such a crimp, After passing through the crimping portion, a plurality of heat sinks are arranged in the longitudinal direction on the outer circumferential surface of the pipe, and then, by applying a constant pressure to the inlet side of the pipe, the expansion and expansion are reduced while reducing the crimping portion to its original form to increase the adhesion between the pipe and the heat sink. Excluding the welding process, it will be described in detail according to the embodiment of the embodiment as follows.

제3도는 본 발명에 따른 열교환기용 파이프와 방열판의 조립상태를 나타낸 것으로, 다수의 절곡부(2)를 이용하여 지그재그 형태로 다층 절곡시킨 열교환기의 냉매용 파이프(1)에 복수개의 각층 파이프 삽입용 통공(6)을 상하방향으로 천공 형성한 방열판(5)을 삽입 설치함에 있어서, 상기 파이프(1)의 일측방 절곡부(2)에 상, 하측 파이프(1)의 길이방향과 수평으로 연장되는 부분을 제외한 나머지 중앙부위를 압착하여 일정두께의 압착부(3)를 형성시키고(제5도 참조), 상기 절곡부(2)와 대응되는 위치에 있는 방열판(5)의 상, 하측 통공(6) 사이에 상기 압착부(3)의 두께와 거의 같은 폭을 가진 절개부(7)를 형성하여 상호 관통되도록 하고(제4도 참조), 이를 통해 상기 압착부(3)가 쉽게 통과 되도록 함으로써 다수의 방열판(5)을 절곡부(2)에 걸림 없이 파이프(1) 외주면에 길이방향으로 삽입적층 설치한다.3 is a view illustrating an assembled state of a heat exchanger pipe and a heat sink according to the present invention, and inserting a plurality of each layer pipes into a refrigerant pipe 1 of a heat exchanger, which is bent in a zigzag form by using a plurality of bent portions 2. In inserting and installing the heat dissipation plate 5 which drills the through-hole 6 in the up-down direction, it extends horizontally with the longitudinal direction of the upper and lower pipes 1 to the one side bend part 2 of the said pipe 1, respectively. Pressing the remaining central portion except for the portion to be formed to form a pressing portion 3 of a predetermined thickness (see Fig. 5), the upper and lower through-holes of the heat sink (5) at the position corresponding to the bent portion (2) 6) forming a cutout portion 7 having a width substantially equal to the thickness of the crimping portion 3 therebetween so as to penetrate each other (see FIG. 4), thereby allowing the crimping portion 3 to pass easily therethrough. A plurality of heat sinks (5) outside the pipe (1) without hooking the bent portion (2) Install inserted laminated on the surface in the longitudinal direction.

그 다음, 파이프(1)의 입구(4)를 통해 일정한 압력을 가하게 되면, 상기 압착부(3)를 팽창하면서 원상태로 환원 및 확관되므로서, 방열판과 지그재그로 절곡된 냉매용 파이프와의 결합이 완료되는 것이다.Then, when a constant pressure is applied through the inlet 4 of the pipe 1, the crimping portion 3 is expanded and reduced and expanded to its original state, so that the coupling between the heat sink and the refrigerant pipe bent zigzag is It's done.

한편, 제3도에서 적층된 방열판(5) 양측단에 설치된 것은 다수의 방열판(5)을 고정 지지하는 고정판(8)인데, 이역시 방열판(5)과 동일한 형태로 통공과 절개부를 형성하였다.On the other hand, the heat sink (5) laminated in Figure 3 is installed on both sides of the fixed plate (8) for holding and supporting a plurality of heat sink (5), in this case formed the through hole and the cut in the same form as the heat sink (5).

여기서, 상기 절개부(7)의 폭을 통공(6)의 직경과 같게 하면 이를 통해 절곡부(2) 자체가 직접 삽입되어 방열판(5)의 삽입설치 작업을 용이하게 할지 모르나, 파이프(1)와 방열판(5)과의 접촉면적 감소로 인한 방열효과가 감소되므로, 그 폭은 압착부(3)의 두께와 거의 같거나 조금크게하면 가장 효과적이다.Here, if the width of the cutout portion 7 is equal to the diameter of the through hole 6, the bent portion 2 may be directly inserted through this to facilitate the insertion installation operation of the heat sink 5, but the pipe 1 Since the heat dissipation effect due to the reduction of the contact area with the heat sink 5 is reduced, it is most effective if the width is approximately equal to or slightly larger than the thickness of the crimping portion (3).

상술한 바와 같은 방법으로 냉매용 파이프에 방열판을 삽입 설치하는 본 발명은, 파이프의 일측 절곡부를 절단한 다음, 방열판의 통공을 상기 절단부에 삽입하여 끼워 넣은 후 절단된 절곡부를 다시 용접시키던 종래의 방법을 배제하고, 파이프의 절곡부에 압착부(3)를 형성시키고 방열판의 통공 사이에 상기 압착부가 관통되어질 절개부(7)를 형성시킴으로서 냉매용 파이프에 방열판을 보다 간편하게 삽입 설치할 수 있으며, 종래의 파이프 절단 및 용접공정에 소요되는 작업시간을 대폭적으로 감축시킬 수 있을 뿐만 아니라, 제품의 신뢰도를 크게 향상시킬수 있는 이점이 있다.According to the present invention in which the heat sink is inserted into the refrigerant pipe by the above-described method, the conventional method of cutting one side bent portion of the pipe, inserting the through hole of the heat sink into the cut portion, and then welding the cut bent portion again. By excluding the heat sink, the press portion 3 is formed in the bent portion of the pipe, and the cut portion 7 through which the press portion is to be penetrated between the through holes of the heat sink can be inserted and installed more easily in the refrigerant pipe. Not only can the work time required for the pipe cutting and welding process be greatly reduced, but also the reliability of the product can be greatly improved.

Claims

In insert-fitting and installing the heat sink 5 provided with the some through-hole 6 for pipe penetration insertion in the refrigerant pipe 1 which was bent in a zigzag-layered multilayer using the several side bend part 2, the pipe ( Simultaneously crimping from the front and back side to the central portion of the one side bent part 2 of 1) to form the crimped part 3 of a predetermined thickness, and the upper and lower through holes of the heat sink 5 corresponding to the bent part 2 ( 6) a cutout portion 7 having a width substantially equal to the thickness of the crimp portion 3 is formed between the plurality of heat sinks on the outer circumferential surface of the pipe 1 by passing the crimp portion 3 therethrough. After inserting the stack, by applying a constant pressure to the inlet side of the pipe (1) to expand the crimp (3) to reduce the original state.

On the outer circumferential surface of the refrigerant pipe 1, which is bent in a zigzag form in a zigzag form using a plurality of both side bends 2, a plurality of heat sinks 5 each having a plurality of pipe insertion holes 6 arranged in the vertical direction in the vertical direction are laminated. In the arranging arrangement, the remaining portions except for the horizontal extension in the longitudinal direction of the upper and lower pipes are formed by simultaneously pressing the remaining portions of the refrigerant pipes 1 on the one side of the refrigerant pipes 1 at the same time. To the crimping portion 3 which is expanded and returned to the squeezed portion; Heat exchanger characterized in that the cut-out portion 7 is inserted into a similar width to the crimping portion (3) between the upper and lower through-hole center portion of the bent portion opposing position of the heat sink (5).