KR20020090524A - Header and tube assembly of heat exchanger - Google Patents

Header and tube assembly of heat exchanger Download PDF

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Publication number
KR20020090524A
KR20020090524A KR1020010029399A KR20010029399A KR20020090524A KR 20020090524 A KR20020090524 A KR 20020090524A KR 1020010029399 A KR1020010029399 A KR 1020010029399A KR 20010029399 A KR20010029399 A KR 20010029399A KR 20020090524 A KR20020090524 A KR 20020090524A
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KR
South Korea
Prior art keywords
tube
header
heat exchanger
insertion hole
state
Prior art date
Application number
KR1020010029399A
Other languages
Korean (ko)
Inventor
김재훈
조재헌
Original Assignee
만도공조 주식회사
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Publication date
Application filed by 만도공조 주식회사 filed Critical 만도공조 주식회사
Priority to KR1020010029399A priority Critical patent/KR20020090524A/en
Publication of KR20020090524A publication Critical patent/KR20020090524A/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/04—Arrangements for sealing elements into header boxes or end plates
    • F28F9/16—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling
    • F28F9/18—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling by welding
    • F28F9/182—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling by welding the heat-exchange conduits having ends with a particular shape, e.g. deformed; the heat-exchange conduits or end plates having supplementary joining means, e.g. abutments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D53/00—Making other particular articles
    • B21D53/02—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers
    • B21D53/06—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers of metal tubes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/04—Arrangements for sealing elements into header boxes or end plates
    • F28F9/16—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling

Abstract

PURPOSE: A method for assembling header and tube of heat exchanger is provided to secure joining condition of the tube. CONSTITUTION: A plurality of cut-away portions(2) is formed on one side of a header(1) to assemble a tube(5) so that lengths of the cut-away portions are formed to be longer than an outer diameter of the tube. The cut-away portions are burred to form insertion protrusions(3). Elastic cut-away portions are formed on both ends of the insertion protrusions. A front end(6) of the tube is inserted to the insertion protrusions formed on the header so as to be exposed to outsides of the insertion protrusions. The front end of the exposed tube is expanded so that the header and the tube are joined and welded to be assembled.

Description

열교환기의 헤더와 튜브 조립방법 {HEADER AND TUBE ASSEMBLY OF HEAT EXCHANGER}Heat exchanger header and tube assembly method {HEADER AND TUBE ASSEMBLY OF HEAT EXCHANGER}

본 발명은 자동차 및 가정용으로 이용되는 에어컨등의 열교환기 콘덴서를 구성하는 튜브를 헤더에 결합하도록 함에 있어서, 상기 헤더에 상기 튜브를 삽입설치하기 위한 삽입공을 절개형으로 형성하고 이 삽입공을 버링하여 확개되도록 하며, 이 확개된 삽입공을 통하여 상기 튜브를 결합시킨 다음, 상기 삽입공을 확관하도록 하므로써 상기 튜브의 결합상태를 견고하게 하고, 상기 확관이 용이하게 이루어질 수 있도록 한 열교환기의 헤더와 튜브 조립방법에 관한 것이다.According to the present invention, in the coupling of a tube constituting a heat exchanger condenser such as an air conditioner used in automobiles and households to a header, an insertion hole for inserting and installing the tube in the header is formed in a cut-out and burring the insertion hole. And the header of the heat exchanger to secure the coupling state of the tube and to facilitate the expansion by coupling the tube through the enlarged insertion hole and then expanding the insertion hole. It relates to a tube assembly method.

일반적으로 에어컨등 으로 이용되는 열교환기의 콘덴서는 헤더에 여러개의 튜브 삽입공을 형성하고 이 삽입공에는 상기 냉매순환용 튜브를 결합시키며, 상기 튜브들의 사이에는 방열을 위한 방열핀을 설치한 상태에서 상기 헤더를 자동차나 에어컨의 본체에 설치되는 브라켓트에 고정시키도록 되어 있었다.In general, a condenser of a heat exchanger used as an air conditioner forms a plurality of tube insertion holes in a header and couples the refrigerant circulation tubes to the insertion holes, and the heat dissipation fins for heat dissipation are installed between the tubes. The headers were to be fixed to brackets provided in the body of the car or the air conditioner.

상기와 같이 구성되는 콘덴서의 헤더에 상기 냉매순환용 튜브를 조립함에 있어서의 종래의 방법은 도 1내지 도 4에서와 같이 헤더(101)의 일측면에 다수의 튜브 삽입공(102)을 형성하되, 상기 튜브 삽입공(102)은 피어싱작업으로 형성하고 이 피어싱된 삽입공에 버링작업을 하여 버링에 따른 돌출부(103)가 형성되도록 한 상태에서 튜브(104)의 선단을 상기 삽입공에 삽입설치한다.In the conventional method of assembling the refrigerant circulation tube in the header of the condenser configured as described above, as shown in FIGS. 1 to 4, a plurality of tube insertion holes 102 are formed on one side of the header 101. The tube insertion hole 102 is formed by a piercing operation and the tip of the tube 104 is inserted into the insertion hole in a state in which the protrusion 103 is formed by burring the pierced insertion hole. do.

상기한 상태에서 삽입공으로 삽입된 튜브(104)의 선단부(105)를 확관시키도록 하며, 상기 튜브가 확관되어 헤더에 결합된 상태에서 이를 용접하여 고정시키도록구성되어 있었다.The tip portion 105 of the tube 104 inserted into the insertion hole in the above state is to be expanded, and it is configured to weld and fix the tube while the tube is expanded and coupled to the header.

그러나, 상기와 같은 종래의 것은 상기 튜브를 삽입시키기 위한 삽입공을 피어싱작업으로 형성하고 이 피어싱작업으로 이루어진 삽입공을 버링하여 상기 삽입공을 완성시키며, 상기 버링작업으로 이루어진 삽입공의 돌출부에 상기 튜브를 결합하도록 구성되어 있었기 때문에 상기 헤더의 튜브 삽입공 형성작업이 매우 번거롭고 불편하였으며, 상기 삽입공을 피어싱과 버링의 2단계 작업으로 형성하도록 하므로써 상기 버링된 삽입공의 모서리부가 손상되는 폐단이 있었고, 이 모서리부의 접합을 위한 클래드가 손상되어 헤더와 튜브를 용접할 때 상기 삽입공의 모서리 부분에서의 용접상태가 불량하게 되는 폐단이 있었다.However, the conventional method as described above forms an insertion hole for inserting the tube by a piercing operation and burrs the insertion hole formed by the piercing operation to complete the insertion hole, and the protrusion part of the insertion hole formed by the burring operation The tube insertion hole forming operation of the header was very cumbersome and inconvenient because it was configured to join the tube, and the edge of the burring insertion hole was damaged by forming the insertion hole in two steps of piercing and burring. However, there was a closed end where the clad for joining the corner part was damaged and the welding state at the corner part of the insertion hole was poor when welding the header and the tube.

또한, 상기 버링작업에 의하여 형성되는 돌출부의 길이가 짧게 되므로서 상기 튜브의 지지상태가 불량하게 되고 상기 튜브의 확관시 상기 돌출부내에서는 확관이 이루어지지 않게 되므로 상기 튜브의 확관상태가 불량하게 되며, 상기 돌출부와 튜브의 사이에 갭이 발생되어 냉매가 유출되거나, 콘덴서의 내압에 의하여 상기 결합부위가 손상되는 점등의 문제점이 있었다.In addition, since the length of the protruding portion formed by the burring operation is shortened, the support state of the tube becomes poor, and the expansion state of the tube becomes poor because the expansion is not made in the protruding portion when the tube is expanded. There was a problem in that a gap is generated between the protruding portion and the tube and the refrigerant flows out, or the coupling portion is damaged by the internal pressure of the condenser.

본 발명은 상기와 같은 종래의 제반 문제점을 감안하여 안출한 것으로, 본 발명은 자동차 및 가정용으로 이용되는 에어컨등의 열교환기 콘덴서를 구성하는 튜브를 헤더에 결합하도록 함에 있어서, 상기 헤더에 상기 튜브를 삽입설치하기 위한 삽입공을 절개형으로 형성하고 이 삽입공을 버링하여 확개되도록 하며, 이 확개된 삽입공을 통하여 상기 튜브를 결합시킨 다음, 상기 삽입공을 확관하도록 하므로써 상기튜브의 결합상태를 견고하게 하고, 상기 확관이 용이하게 이루어질 수 있도록 한 열교환기의 헤더와 튜브 조립방법을 제공하려는 것인바, 이를 이하에서 첨부한 도면과 실시 예에 의거하여 상세히 설명하면 다음과 같다.The present invention has been made in view of the above-mentioned conventional problems, and the present invention is to connect the tube constituting the heat exchanger condenser, such as air conditioners used in automobiles and households to the header, the tube to the header The insertion hole for insertion and installation is formed in a cut-out shape, and the insertion hole is burred to be expanded, and the tube is joined through the enlarged insertion hole, and then the insertion hole is expanded so that the connection state of the tube is firmly secured. It is intended to provide a header and tube assembly method of the heat exchanger to facilitate the expansion, which will be described in detail below based on the accompanying drawings and embodiments.

도 1은 종래의 헤더에 삽입공을 형성한 상태를 나타내는 사시도1 is a perspective view showing a state in which an insertion hole is formed in a conventional header

도 2는 종래의 헤더에 튜브를 결합시킨 상태를 나타내는 사시도Figure 2 is a perspective view showing a state in which the tube is coupled to the conventional header

도 3은 종래의 헤더에 튜브를 확관하여 결합한 상태를 나타내는 구성도3 is a block diagram showing a state in which the tube is coupled to the conventional header by expanding

도 4는 본 발명 실시예의 헤더에 절개부를 형성한 상태를 나타내는 일면도4 is a side view showing a state in which a cutout is formed in a header of an embodiment of the present invention.

도 5는 본 발명 실시예의 헤더를 발췌하여 나타내는 사시도Figure 5 is a perspective view showing an extract of the header of the embodiment of the present invention

도 6은 본 발명 실시예의 튜브 조립상태를 나타내는 사시도Figure 6 is a perspective view showing the tube assembly state of the embodiment of the present invention

도 7은 본 발명 실시예의 헤더에 튜브를 확관하여 결합한 상태를 나타내는 단면도7 is a cross-sectional view showing a state in which the tube is expanded and coupled to the header of the embodiment of the present invention.

<도면의주요부분에대한부호의설명>Explanation of symbols on the main parts of the drawing

1 : 헤더1: header

2 : 절개부2: incision

3 : 삽입돌출부3: insertion protrusion

4 : 탄성절개부4: elastic incision

5 : 튜브5: tube

6 : 선단부6: tip end

본 발명은 열교환기의 헤더에 튜브를 조립함에 있어서, 상기 헤더(1)의 일측면에 튜브(5)를 조립하기 위한 다수의 절개부(2)를 형성하되, 이 절개부(2)의 길이는 상기 튜브(5)의 외경보다 길게 형성하도록 하고, 상기 절개부(2)를 버링하여 삽입돌출부(3)를 형성하며, 상기 삽입돌출부(3)의 양단부에는 탄성절개부(4)가 형성되도록 한다.In the present invention, in assembling the tube in the header of the heat exchanger, a plurality of cutouts (2) for assembling the tube (5) on one side of the header (1) is formed, the length of the cutout (2) Is formed to be longer than the outer diameter of the tube (5), the burring portion (2) to form an insertion protrusion (3), so that both ends of the insertion protrusion (3) is formed so that the elastic cut portion (4) do.

상기 헤더(1)에 형성된 삽입돌출부(3)에는 상기 튜브(5)의 선단부(6)를 삽입시켜, 상기 삽입돌출부(3)의 외부로 노출되도록 하고 이 노출된 튜브(5)의 선단부(6)를 확관시켜 헤더(1)와 튜브(5)를 결합시킨 상태에서 이들을 용접하여 조립하도록 된 것이다.The tip portion 6 of the tube 5 is inserted into the insertion protrusion portion 3 formed in the header 1 so as to be exposed to the outside of the insertion protrusion portion 3 and the tip portion 6 of the exposed tube 5 is exposed. ) By expanding the header (1) and the tube (5) in a state that they are welded and assembled.

이상과 같이 구성된 본 발명은 열교환기의 헤더에 튜브를 조립함에 있어서, 상기 헤더(1)의 일측면에 튜브(5)를 조립하기 위한 다수의 절개부(2)를 버링가능하게 형성하되, 이 절개부(2)의 길이는 상기 튜브(5)의 외경보다 길게 형성하도록 하고, 상기 절개부(2)를 버링하여 삽입돌출부(3)를 형성하도록 하므로써 이 삽입돌출부의 상면 양단부에 탄성절개부(4)가 형성되도록 하며, 이 탄성절개부(4)가 형성된 삽입돌출부(3)에 상기 튜브(5)의 선단부(6)를 삽입시킨다.In the present invention configured as described above, in assembling the tube in the header of the heat exchanger, a plurality of cutouts (2) for assembling the tube (5) on one side of the header (1) are formed to be burrable, The length of the cutout portion 2 is formed to be longer than the outer diameter of the tube 5, and the elastic cutout portion is formed at both ends of the upper surface of the cutout portion by burring the cutout portion 2 to form the insertion protrusion portion 3. 4) is formed, and the tip 6 of the tube 5 is inserted into the insertion protrusion 3 in which the elastic cutout 4 is formed.

상기 튜브(5)의 선단부(6)가 삽입돌출부(3)에 삽입된 상태에서 튜브(5)의 선단부(6)를 확관시키게 되면, 상기 헤더(1)와 튜브(5)가 상호 결합되며 이 상태에서 이들을 용접하여 조립하도록 된 것으로, 상기 삽입돌출부(3)에 삽입되는 튜브(5)의 선단부(6)는 상기 탄성절개부(4)에 의하여 거의 압입되는 상태로 결합되며, 상기 튜브(5)의 선단부(6)를 확관할 때 상기 탄성절개부(4)에 의하여 선단부(6)의 확관이 원활하게 되고, 상기 확관이 삽입돌출부(3)의 내면에 까지 이루어지게 되므로 상기 튜브(5)와 삽입돌출부(3) 사이에 갭이 발생되지 않게 되는 것이다.When the tip 6 of the tube 5 is expanded in the state where the tip 6 of the tube 5 is inserted into the insertion protrusion 3, the header 1 and the tube 5 are coupled to each other. It is to be assembled by welding them in a state, the front end portion 6 of the tube (5) inserted into the insertion protrusion (3) is coupled in a state that is almost press-fitted by the elastic incision (4), the tube (5) When the front end portion 6 of the tube 6 is expanded, the expansion of the tip portion 6 is smoothed by the elastic cutout portion 4, and the tube is made up to the inner surface of the insertion protrusion 3. And no gap is generated between the insertion protrusion 3.

이상과 같은 본 발명은 상기와 같이 열교환기의 콘덴서의 부품으로 이용되는 헤더에 상기 튜브를 결합하여 조립하도록 함에 있어서, 헤더에 튜브의 외경보다 약간 긴 절개부를 형성하고 이를 버링하여 탄성절개부가 형성되는 삽입돌출부를 형성하고 이에 상기 튜브를 결합한 상태에서 결합부위를 확관하도록 하므로써 상기 튜브와 헤더의 결합을 견고하게 할 수 있으며, 상기 튜브와 헤더의 결합부위에서 갭이 발생되지 않게 되므로써 이 결합부분에서의 리크가 발생되지 않도록 하고, 상기 튜브의 조립을 용이하게 하면서 열교환기의 냉매순환이 원활하게 되도록 하는 점등의 특징을 지닌 것이다.In the present invention as described above to combine the tube to the header used as a component of the condenser of the heat exchanger as described above, the incision is formed in the header slightly longer than the outer diameter of the tube and the burring elasticity is formed It is possible to secure the coupling between the tube and the header by forming an insertion protrusion and expanding the coupling portion in the state where the tube is coupled thereto, so that no gap is generated in the coupling portion of the tube and the header. Leak is generated, and the tube has a characteristic of lighting to facilitate the refrigerant circulation of the heat exchanger while facilitating the assembly of the tube.

Claims (2)

열교환기의 헤더에 튜브를 조립함에 있어서, 상기 헤더(1)의 일측면에 튜브(5)를 조립하기 위한 다수의 절개부(2)를 형성하되, 이 절개부(2)의 길이는 상기 튜브(5)의 외경보다 길게 형성하도록 하고, 상기 절개부(2)를 버링하여 삽입돌출부(3)를 형성하며, 상기 삽입돌출부(3)의 양단부에는 탄성절개부(4)가 형성되도록 하고, 상기 헤더(1)에 형성된 삽입돌출부(3)에는 상기 튜브(5)의 선단부(6)를 삽입시켜, 상기 삽입돌출부(3)의 외부로 노출되도록 하며 이 노출된 튜브(5)의 선단부(6)를 확관시켜 헤더(1)와 튜브(5)를 결합시킨 상태에서 이들을 용접하여 조립하도록 됨을 특징으로 하는 열교환기의 헤더와 튜브 조립방법.In assembling the tube to the header of the heat exchanger, a plurality of cutouts 2 are formed on one side of the header 1 for assembling the tube 5, the length of the cutout 2 being the length of the tube. It is formed to be longer than the outer diameter of (5), and the insertion portion (3) is formed by burring the cutout portion (2), the elastic cutout portion (4) is formed at both ends of the insertion protrusion (3), The tip 6 of the tube 5 is inserted into the insertion protrusion 3 formed in the header 1 so as to be exposed to the outside of the insertion protrusion 3 and the tip 6 of the exposed tube 5 is exposed. The method of assembling the header and tube of the heat exchanger, characterized in that to expand the assembly by welding them in a state in which the header (1) and the tube (5) combined. 상기 헤더(1)의 일측면에 튜브(5)를 조립하기 위한 다수의 절개부(2)를 형성하되, 이 절개부(2)의 길이는 상기 튜브(5)의 외경보다 길게 형성하도록 하고, 상기 절개부(2)를 버링하여 삽입돌출부(3)를 형성하며, 상기 삽입돌출부(3)의 양단부에는 탄성절개부(4)가 형성되도록 하여 상기 튜브(5)의 선단부(6)를 삽입시키고 이를 확관시켜 헤더(1)와 튜브(5)를 결합하도록 구성함을 특징으로 하는 열교환기의 헤더.A plurality of cutouts 2 for assembling the tube 5 are formed on one side of the header 1, but the length of the cutouts 2 is longer than the outer diameter of the tube 5. Burring the cutout portion 2 to form an insertion protrusion 3, and insert the tip 6 of the tube 5 so that an elastic cutout 4 is formed at both ends of the insertion protrusion 3. The header of the heat exchanger, characterized in that configured to couple the header (1) and the tube (5) by expanding it.
KR1020010029399A 2001-05-28 2001-05-28 Header and tube assembly of heat exchanger KR20020090524A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100680160B1 (en) * 2005-08-26 2007-02-07 이하균 A pipe assemble for refrigerant and its making method
KR101353314B1 (en) * 2006-09-22 2014-01-21 한라비스테온공조 주식회사 Heat Exchanger

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0979766A (en) * 1995-09-12 1997-03-28 Nippon Light Metal Co Ltd Heat exchanger and its manufacture

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0979766A (en) * 1995-09-12 1997-03-28 Nippon Light Metal Co Ltd Heat exchanger and its manufacture

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100680160B1 (en) * 2005-08-26 2007-02-07 이하균 A pipe assemble for refrigerant and its making method
KR101353314B1 (en) * 2006-09-22 2014-01-21 한라비스테온공조 주식회사 Heat Exchanger

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