JP2009297722A - Method of manufacturing brazed pipe and method of manufacturing heat exchanger - Google Patents
Method of manufacturing brazed pipe and method of manufacturing heat exchanger Download PDFInfo
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- JP2009297722A JP2009297722A JP2008151581A JP2008151581A JP2009297722A JP 2009297722 A JP2009297722 A JP 2009297722A JP 2008151581 A JP2008151581 A JP 2008151581A JP 2008151581 A JP2008151581 A JP 2008151581A JP 2009297722 A JP2009297722 A JP 2009297722A
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 27
- 238000005219 brazing Methods 0.000 claims abstract description 102
- 238000005520 cutting process Methods 0.000 claims abstract description 9
- 238000005192 partition Methods 0.000 claims description 44
- 239000012530 fluid Substances 0.000 claims description 35
- 238000003780 insertion Methods 0.000 claims description 35
- 230000037431 insertion Effects 0.000 claims description 35
- 239000000463 material Substances 0.000 claims description 33
- 238000000034 method Methods 0.000 claims description 24
- 230000002093 peripheral effect Effects 0.000 claims description 8
- YTAHJIFKAKIKAV-XNMGPUDCSA-N [(1R)-3-morpholin-4-yl-1-phenylpropyl] N-[(3S)-2-oxo-5-phenyl-1,3-dihydro-1,4-benzodiazepin-3-yl]carbamate Chemical compound O=C1[C@H](N=C(C2=C(N1)C=CC=C2)C1=CC=CC=C1)NC(O[C@H](CCN1CCOCC1)C1=CC=CC=C1)=O YTAHJIFKAKIKAV-XNMGPUDCSA-N 0.000 claims description 5
- FGUUSXIOTUKUDN-IBGZPJMESA-N C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 Chemical compound C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 FGUUSXIOTUKUDN-IBGZPJMESA-N 0.000 claims description 3
- GNFTZDOKVXKIBK-UHFFFAOYSA-N 3-(2-methoxyethoxy)benzohydrazide Chemical compound COCCOC1=CC=CC(C(=O)NN)=C1 GNFTZDOKVXKIBK-UHFFFAOYSA-N 0.000 claims description 2
- 239000003507 refrigerant Substances 0.000 description 42
- 229910052782 aluminium Inorganic materials 0.000 description 22
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 22
- 230000015572 biosynthetic process Effects 0.000 description 9
- 238000004080 punching Methods 0.000 description 5
- 239000002826 coolant Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 238000003825 pressing Methods 0.000 description 4
- 239000003990 capacitor Substances 0.000 description 3
- 239000000945 filler Substances 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 3
- 238000005057 refrigeration Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- KYKAJFCTULSVSH-UHFFFAOYSA-N chloro(fluoro)methane Chemical compound F[C]Cl KYKAJFCTULSVSH-UHFFFAOYSA-N 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
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- Details Of Heat-Exchange And Heat-Transfer (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
Description
この発明は、ろう付パイプの製造方法および熱交換器の製造方法に関し、さらに詳しくは、たとえばカーエアコン用コンデンサやエバポレータ、自動車用オイルクーラなどの熱交換器において、ヘッダとして好適に用いられるろう付パイプの製造方法、およびこのろう付パイプを用いた熱交換器の製造方法に関する。 The present invention relates to a method for manufacturing a brazed pipe and a method for manufacturing a heat exchanger. More specifically, the present invention relates to a brazing that is suitably used as a header in a heat exchanger such as a condenser for an air conditioner, an evaporator, or an oil cooler for an automobile. The present invention relates to a method for manufacturing a pipe, and a method for manufacturing a heat exchanger using the brazed pipe.
この明細書において、「アルミニウム」という用語には、純アルミニウムの他にアルミニウム合金を含むものとする。 In this specification, the term “aluminum” includes aluminum alloys in addition to pure aluminum.
以下に述べる図４および図５に関する説明については、図４の上下、左右を上下、左右というものとする。 4 and 5 to be described below, the upper and lower sides and the left and right sides in FIG.
たとえば車両のカーエアコンのコンデンサに適用される熱交換器(1)としては、図４および図５に示すように、上下方向にのびかつ左右方向に間隔をおいて配置された１対のアルミニウム製ヘッダ(2)(3)と、両ヘッダ(2)(3)間において上下方向に間隔をおいて配置され、かつ両端部が両ヘッダ(2)(3)に接続された複数のアルミニウム製熱交換管(4)と、隣り合う熱交換管(4)どうしの間、および上下両端の熱交換管(4)の外側に配置されて熱交換管(4)にろう付されたアルミニウム製コルゲートフィン(5)と、上下両端のコルゲートフィン(5)の外側に配置されてコルゲートフィン(5)にろう付されたサイドプレート(6)とよりなり、左側ヘッダ(2)が、高さ方向の中央部よりも上方において板状の仕切部材(7)により上下２つのヘッダ部(2a)(2b)に仕切られ、右側ヘッダ(3)が、高さ方向の中央部よりも下方において仕切部材(7)により上下２つのヘッダ部(3a)(3b)に仕切られ、左側ヘッダ(2)の上ヘッダ部(2a)に流体入口（流体通過口、貫通穴）（図示略）が形成され、流体入口に通じる流体流入路(8a)を有する入口部材(8)が上ヘッダ部(2a)にろう付され、右側ヘッダ(3)の下ヘッダ部(3b)に流体出口(12)（流体通過口、貫通穴）が形成され、流体出口(12)に通じる流体流出路(9a)を有する出口部材(9)が下ヘッダ部(3b)にろう付されているものが広く用いられている（特許文献１参照）。 For example, as shown in FIGS. 4 and 5, a heat exchanger (1) applied to a car air conditioner condenser of a vehicle is made of a pair of aluminum that extends in the vertical direction and is spaced apart in the horizontal direction. A plurality of aluminum heats that are vertically spaced between the header (2) (3) and both headers (2) (3) and whose both ends are connected to both headers (2) (3) Aluminum corrugated fin brazed to the heat exchange pipe (4) between the exchange pipe (4) and the adjacent heat exchange pipes (4) and outside the heat exchange pipes (4) at both upper and lower ends (5) and the side plate (6) placed outside the corrugated fins (5) at the upper and lower ends and brazed to the corrugated fins (5), and the left header (2) is the center in the height direction. The upper header is divided into two upper and lower header sections (2a) and (2b) by a plate-shaped partition member (7) above the section, and the right header (3) The upper part (2a) of the left header (2) is divided into two upper and lower header parts (3a) and (3b) by a partition member (7) below the central part in the height direction. The inlet member (8) having a fluid inflow passage (8a) communicating with the fluid inlet is brazed to the upper header portion (2a), and the lower header of the right header (3) is formed. An outlet member (9) having a fluid outlet (9a) communicating with the fluid outlet (12) is formed in the lower header portion (3b). What is brazed is widely used (see Patent Document 1).
上述したコンデンサ(1)の左右のヘッダ(2)(3)は、両面にろう材層を有するアルミニウムブレージングシートからなる素板が筒状に成形されるとともに両側縁部どうしが突き合わされて相互にろう付されたろう付パイプ(10)と、ろう付パイプ(10)の両端部にろう付されてその両端開口を閉鎖するアルミニウム製閉鎖部材(11)とからなる。左右両ヘッダ(2)(3)のろう付パイプ(10)における素板の互いに突き合わされた両側縁部に跨って、ろう付パイプ(10)の周方向にのびる仕切部材挿入用スリット(13)が形成されている。仕切部材挿入用スリット(13)は素板の両側縁部に形成されたスリット形成用切り欠(13a)きからなる。そして、仕切部材(7)が仕切部材挿入用スリット(13)に外側から挿入された状態で左右両ヘッダ(2)(3)のろう付パイプ(10)にろう付されている。また、左右両ヘッダ(2)(3)のろう付パイプ(10)における仕切部材挿入用スリット(13)とは周方向にずれた部分に、複数の管挿入穴(14)がろう付パイプ(10)の長さ方向に間隔をおきかつ仕切部材挿入用スリット(13)とは上下方向にずれて形成されており、熱交換管(4)の両端部が管挿入穴(14)に挿入されてろう付パイプ(10)にろう付されている。 The left and right headers (2) and (3) of the capacitor (1) described above are formed by forming a base plate made of an aluminum brazing sheet having a brazing material layer on both sides into a cylindrical shape, and both side edges are abutted against each other. The brazed pipe (10) is brazed, and the aluminum closing member (11) is brazed to both ends of the brazed pipe (10) to close the opening at both ends. Partition member insertion slit (13) extending in the circumferential direction of the brazed pipe (10) across the opposite side edges of the base plate of the brazed pipe (10) of the left and right headers (2) (3) Is formed. The slit for inserting the partition member (13) is formed by slit forming notches (13a) formed on both side edges of the base plate. The partition member (7) is brazed to the brazing pipe (10) of the left and right headers (2) and (3) in a state of being inserted into the partition member insertion slit (13) from the outside. In addition, a plurality of pipe insertion holes (14) are formed in the brazed pipe (14) in the circumferentially shifted portion of the left and right headers (2) and (3) with respect to the partition member insertion slit (13) in the brazed pipe (10). 10) is spaced apart from the partition member insertion slit (13) in the vertical direction at intervals in the length direction, and both ends of the heat exchange pipe (4) are inserted into the pipe insertion holes (14). It is brazed to the brazed pipe (10).
右ヘッダ(3)のろう付パイプ(10)の下端部において、素板の互いに突き合わされた両側縁部に跨って、略円形の冷媒出口(12)が形成されている。冷媒出口(12)は素板の両側縁部に形成された冷媒出口形成用切り欠き(12a)からなる。そして、冷媒出口(12)に通じる冷媒流出路(9a)を有するアルミニウム製冷媒出口部材(9)が、ろう付パイプ(10)を形成する素板のろう材層を利用してろう付パイプ(10)の外周面にろう付されている。図示は省略したが、右ヘッダ(3)の場合と同様に、左ヘッダ(2)のろう付パイプ(10)の上端部において、素板の互いに突き合わされた両側縁部に跨って、略円形の冷媒入口が形成されている。冷媒入口は素板の両側縁部に形成された切り欠きからなる。そして、冷媒入口に通じる冷媒流入路(8a)を有するアルミニウム製冷媒入口部材(8)が、ろう付パイプ(10)を形成する素板のろう材層を利用してろう付パイプ(10)の外周面にろう付されている。 At the lower end of the brazed pipe (10) of the right header (3), a substantially circular refrigerant outlet (12) is formed across the opposite side edges of the base plate. The refrigerant outlet (12) includes a refrigerant outlet forming notch (12a) formed at both side edges of the base plate. Then, the aluminum refrigerant outlet member (9) having the refrigerant outflow passage (9a) leading to the refrigerant outlet (12) is used for brazing pipe (10) using the brazing material layer of the base plate forming the brazing pipe (10). It is brazed to the outer peripheral surface of 10). Although not shown, as in the case of the right header (3), at the upper end of the brazed pipe (10) of the left header (2), it is substantially circular across the opposite side edges of the base plate. The refrigerant inlet is formed. The refrigerant inlet is formed by notches formed at both side edges of the base plate. Then, the aluminum refrigerant inlet member (8) having the refrigerant inflow passage (8a) leading to the refrigerant inlet uses the brazing material layer of the base plate forming the brazing pipe (10) to form the brazing pipe (10). The outer peripheral surface is brazed.
特許文献１記載のろう付パイプは、次の方法で製造されている。
The brazed pipe described in
すなわち、両面にろう材層を有するブレージングシートからなる１つの素板の両側縁部に、仕切部材挿入用スリット(13)を形成するためのスリット形成用切り欠き(13a)と、冷媒出口(12)を形成するための冷媒出口形成用切り欠き(12a)とを形成する。また、両面にろう材層を有するブレージングシートからなる他の１つの素板の両側縁部に、仕切部材挿入用スリット(13)を形成するためのスリット形成用切り欠き(13a)と、冷媒入口を形成するための冷媒入口形成用切り欠きとを形成する。また、両素板に管挿入穴(14)を形成する。 That is, a slit forming notch (13a) for forming a partition member insertion slit (13) on both side edges of one base plate made of a brazing sheet having brazing material layers on both sides, and a refrigerant outlet (12 ) To form a refrigerant outlet forming notch (12a). Also, slit forming notches (13a) for forming partition member insertion slits (13) on both side edges of one other base plate made of a brazing sheet having a brazing material layer on both sides, a refrigerant inlet Forming a coolant inlet forming notch for forming the. Moreover, a tube insertion hole (14) is formed in both the base plates.
ついで、一方の素板を、スリット形成用切り欠き(13a)どうし、および冷媒出口形成用切り欠き(12a)どうしが合わさるように筒状に成形するとともに、他方の素板を、スリット形成用切り欠き(13a)どうし、および冷媒入口形成用切り欠きどうしが合わさるように筒状に成形して両側縁部どうしを突き合わせることによりろう付パイプ用筒状体を得る。その後、両ろう付パイプ用筒状体を形成する素板の両側縁部どうしを、素板のろう材層を利用してろう付することにより、ろう付パイプ(10)が製造されている。なお、素板の両側縁部どうしのろう付は、他の部品を一括ろう付するコンデンサ(1)の製造時に行われる。 Next, one base plate is formed into a cylindrical shape so that the slit forming notches (13a) and the refrigerant outlet forming notches (12a) are aligned with each other, and the other base plate is formed with a slit forming cut. A cylindrical body for a brazed pipe is obtained by forming into a cylindrical shape so that the notches (13a) and the refrigerant inlet forming notches are aligned with each other and abutting both side edges. Thereafter, the brazed pipe (10) is manufactured by brazing the both side edges of the base plate forming the cylindrical body for both brazed pipes using the brazing material layer of the base plate. Note that brazing between both side edges of the base plate is performed at the time of manufacturing the capacitor (1) that brazes other parts together.
しかしながら、特許文献１記載の方法によれば、スリット形成用切り欠き(13a)と、冷媒出口形成用切り欠き(12a)または冷媒入口形成用切り欠きとを形成した後に、素板を筒状に成形する際に、これらの切り欠き(13a)(12a)の周囲の部分が変形して切り欠き(13a)(12a)の形状精度および寸法精度が低下するおそれがある。その結果、２つのスリット形成用切り欠き(13a)からなる仕切部材挿入用スリット(13)内に仕切部材(7)を挿入することができなくなったり、冷媒出口形成用切り欠き(12a)からなる冷媒出口(12)と冷媒出口部材(9)の冷媒流出路(9a)、および冷媒入口形成用切り欠きからなる冷媒入口と冷媒入口部材(8)の冷媒流入路(8a)とがずれるおそれがある。
この発明の目的は、上記問題を解決し、素板を筒状に成形した際に、素板の両側縁部に形成された２つの切り欠きからなる貫通穴の形状精度および寸法精度を向上させることができるろう付パイプの製造方法および熱交換器の製造方法を提供することにある。 An object of the present invention is to solve the above problems and improve the shape accuracy and dimensional accuracy of a through-hole formed of two notches formed on both side edges of a base plate when the base plate is formed into a cylindrical shape. Another object is to provide a method for manufacturing a brazed pipe and a method for manufacturing a heat exchanger.
本発明は、上記目的を達成するために以下の態様からなる。 In order to achieve the above object, the present invention comprises the following aspects.
1)少なくとも片面にろう材層を有するブレージングシートからなる素板が筒状に成形されるとともに両側縁部が突き合わされ、素板の互いに突き合わされた両側縁部どうしが素板のろう材層を利用してろう付され、素板の互いに突き合わされた両側縁部に跨って貫通穴が形成され、当該貫通穴が素板の両側縁部に形成された貫通穴形成用切り欠きからなるろう付パイプを製造する方法であって、
少なくとも片面にろう材層を有するブレージングシートからなる素板の両側縁部における貫通穴形成用切り欠きを形成すべき部分に、素板の一方の面側から半抜き加工を施すことにより、素板の他方の面側に突出した貫通穴形成用切り欠きと同形状の半抜き部を形成する工程Ａと、半抜き部をプッシュバックして素板内に戻す工程Ｂと、素板を筒状に成形して両側縁部どうしを突き合わせてろう付パイプ用筒状体を得る工程Ｃと、工程Ｂにおいて素板内に押し戻された半抜き部を除去して貫通穴を形成する工程Ｄと、ろう付パイプ用筒状体を形成する素板の両側縁部どうしを、素板のろう材層を利用してろう付することにより貫通穴を有するろう付パイプをつくる工程Ｅとを含むろう付パイプの製造方法。
1) A base plate made of a brazing sheet having a brazing material layer on at least one side is formed into a cylindrical shape and both side edges are abutted, and both side edges of the base plate abutting each other form a brazing material layer of the base plate. Brazing is made using brazing consisting of notches for forming through holes formed on both side edges of the base plate. A method of manufacturing a pipe, comprising:
The base plate is subjected to half-cutting from one side of the base plate at a portion where notches for forming through holes are to be formed at both side edges of the base plate made of a brazing sheet having a brazing material layer on at least one side. A step A for forming a half punched portion having the same shape as the through hole forming notch protruding on the other surface side, a step B for pushing back the half punched portion and returning it into the base plate, and the base plate in a cylindrical shape Forming a through hole by removing the half-punched portion pushed back into the base plate in step B; Brazing including a step E of forming a brazed pipe having a through hole by brazing both side edges of a base plate forming a cylindrical body for a brazed pipe using a brazing material layer of the base plate. Pipe manufacturing method.
2)互いに間隔をおいて配置された１対のヘッダと、両ヘッダ間に配置されて両端部が両ヘッダに接続された複数の熱交換管と、隣り合う熱交換管間に配置されたフィンと、少なくともいずれか一方のヘッダ内をヘッダの長さ方向に並んだ複数のヘッダ部に仕切る仕切部材とを備えており、複数のヘッダ部を有するヘッダが、少なくとも片面にろう材層を有するブレージングシートからなる素板が筒状に成形されて両側縁部が突き合わされるとともに、素板の互いに突き合わされた両側縁部どうしが素板のろう材層を利用してろう付されたろう付パイプと、ろう付パイプの両端部にろう付されて両端開口を閉鎖する閉鎖部材とにより形成され、当該ヘッダのろう付パイプにおける素板の互いに突き合わされた両側縁部に跨って、ろう付パイプの周方向にのびる仕切部材挿入用スリットが形成され、仕切部材挿入用スリットが素板の両側縁部に形成されたスリット形成用切り欠きからなり、仕切部材が仕切部材挿入用スリットに外側から挿入された状態でろう付パイプにろう付され、ヘッダのろう付パイプにおける仕切部材挿入用スリットとは周方向にずれた部分に複数の管挿入穴が形成され、熱交換管の両端部が管挿入穴に挿入されてろう付パイプにろう付されている熱交換器を製造する方法であって、
少なくとも片面にろう材層を有するブレージングシートからなる素板の両側縁部におけるスリット形成用切り欠きを形成すべき部分に、素板の一方の面側から半抜き加工を施すことにより、素板の他方の面側に突出したスリット形成用切り欠きと同形状の半抜き部を形成する工程ａと、半抜き部をプッシュバックして素板内に戻す工程ｂと、素板におけるスリット形成用切り欠きとは幅方向にずれた部分に複数の管挿入穴を素板の長さ方向に間隔をおいて形成する工程ｃと、素板を筒状に成形して両側縁部どうしを突き合わせてろう付パイプ用筒状体を得る工程ｄと、工程ｃにおいて素板内に押し戻された半抜き部を除去して仕切部材挿入用スリットを形成する工程ｅと、ろう付パイプ用筒状体の両端部に閉鎖部材を配置する工程ｆと、両端部に閉鎖部材が配置されたろう付パイプ用筒状体を互いに間隔をおいて配置し、複数の熱交換管の両端部を上記ろう付パイプ用筒状体の管挿入穴内に挿入し、隣り合う熱交換管どうしの間にフィンを配置する工程ｇと、ろう付パイプ用筒状体を形成する素板の両側縁部どうしを、素板のろう材層を利用してろう付することにより仕切部材挿入用スリットを有するろう付パイプを形成し、さらに閉鎖部材および熱交換管をろう付パイプにろう付し、これと同時にフィンを熱交換管にろう付する工程ｈとを含む熱交換器の製造方法。
2) A pair of headers arranged at a distance from each other, a plurality of heat exchange tubes arranged between both headers and having both ends connected to both headers, and fins arranged between adjacent heat exchange tubes And a partition member that partitions at least one of the headers into a plurality of header portions arranged in the length direction of the header, and the header having the plurality of header portions has a brazing material layer on at least one side A brazing pipe in which a base plate made of a sheet is formed into a cylindrical shape and both side edges are butted, and both side edges of the base plate that are butted against each other are brazed using a brazing material layer of the base plate The brazing pipe is formed by a closing member that is brazed to both ends of the brazing pipe and closes the opening of both ends, and straddles the opposite side edges of the base plate of the brazing pipe of the header. A partition member insertion slit extending in the direction is formed, and the partition member insertion slit is formed by slit forming notches formed on both side edges of the base plate, and the partition member is inserted into the partition member insertion slit from the outside. A plurality of tube insertion holes are formed in a portion that is brazed to the brazed pipe in the state and is shifted in the circumferential direction from the slit for inserting the partition member in the brazed pipe of the header, and both ends of the heat exchange tube are formed as tube insertion holes. A method of manufacturing a heat exchanger that is inserted and brazed to a brazed pipe, comprising:
By applying half-cutting from one side of the base plate to the part where slit notches for forming both sides of the base plate made of a brazing sheet having a brazing material layer on at least one side are to be formed, A step a for forming a half-cut portion having the same shape as the slit-forming notch protruding on the other surface side, a step b for pushing the half-cut portion back into the base plate, and a slit-forming cut in the base plate The notch is a step c in which a plurality of tube insertion holes are formed at intervals in the length direction of the base plate at a portion shifted in the width direction, and the base plate is formed into a cylindrical shape and the side edges are brought into contact with each other. A step d for obtaining a tubular body for a pipe, a step e for forming a slit for inserting a partition member by removing the half punched portion pushed back into the base plate in the step c, and both ends of the tubular body for a brazed pipe Step f for disposing the closing member on the part and both ends The brazing pipe cylinders having the closing members disposed on the pipes are spaced apart from each other, and both end portions of the plurality of heat exchange pipes are inserted into the tube insertion holes of the brazing pipe cylinders, so that the adjacent heat A partition member by brazing the step g of arranging fins between the exchange pipes and both side edges of the base plate forming the cylindrical body for the brazed pipe using the brazing material layer of the base plate Forming a brazed pipe having an insertion slit, and brazing the closing member and the heat exchange pipe to the brazed pipe, and simultaneously brazing the fins to the heat exchange pipe. Method.
3)少なくともいずれか一方のヘッダに流体通過口が形成されており、流体通過口が素板の両側縁部に形成された流体通過口形成用切り欠きからなり、流体通過口に通じる流路を有する流体通過部材がヘッダのろう付パイプの外周面にろう付されている熱交換器を製造する方法であって、
前記工程ｄの前段階において、素板の両側縁部における流体通過口形成用切り欠きを形成すべき部分に、素板の一方の面側から半抜き加工を施すことにより、素板の他方の面側に突出した流体通過口形成用切り欠きと同形状の半抜き部を形成する工程ｉと、半抜き部をプッシュバックして素板内に戻す工程ｊとを実施し、前記工程ｄの後段階でかつ前記工程ｈの前段階において、工程ｊにおいて素板内に押し戻された半抜き部を除去して流体通過口を形成する工程ｋと、流体通過部材をろう付パイプ用筒状体の外周面に配置する工程ｌとを実施し、前記工程ｈにおいて流体通過部材をろう付パイプにろう付する上記2)記載の熱交換器の製造方法。
3) A fluid passage opening is formed in at least one of the headers, and the fluid passage opening is formed of a notch for forming a fluid passage opening formed on both side edges of the base plate, and has a flow path leading to the fluid passage opening. A method of manufacturing a heat exchanger in which a fluid passing member having a brazing pipe is brazed to an outer peripheral surface of a header,
In the previous stage of the step d, the other part of the base plate is subjected to a half-cutting process from one side of the base plate to the portion where the fluid passage opening forming notches are to be formed at both side edges of the base plate. A step i of forming a half punched portion having the same shape as the fluid passage opening forming notch protruding to the surface side, and a step j of pushing back the half punched portion and returning it into the base plate, A step k that forms a fluid passage opening by removing the half punched portion pushed back into the base plate in the step j at a later stage and in the previous step of the step h; and a tubular body for brazing pipe The method for producing a heat exchanger according to 2) above, wherein the
上記1)のろう付パイプの製造方法によれば、少なくとも片面にろう材層を有するブレージングシートからなる素板の両側縁部における貫通穴形成用切り欠きを形成すべき部分に、素板の一方の面側から半抜き加工を施すことにより、素板の他方の面側に突出した貫通穴形成用切り欠きと同形状の半抜き部を形成する工程Ａと、半抜き部をプッシュバックして素板内に戻す工程Ｂと、素板を筒状に成形して両側縁部どうしを突き合わせてろう付パイプ用筒状体を得る工程Ｃと、工程Ｂにおいて素板内に押し戻された半抜き部を除去して貫通穴を形成する工程Ｄと、ろう付パイプ用筒状体を形成する素板の両側縁部どうしを、素板のろう材層を利用してろう付して貫通穴を有するろう付パイプをつくる工程Ｅとを含むので、工程Ｂにおいて素板内に戻された半抜き部の働きによって、工程Ｃにおいて素板を筒状に成形して両側縁部どうしを突き合わせる際に、素板における半抜き部の周囲の部分の変形が防止される。そして、工程Ｄにおいて半抜き部を除去することにより、２つの切り欠きからなる貫通穴が形成される。したがって、形成された貫通穴の形状精度および寸法精度が向上する。 According to the method for producing a brazed pipe of 1) above, one side of the base plate is formed in a portion where notches for forming through holes are to be formed on both side edges of the base plate made of a brazing sheet having a brazing material layer on at least one side. The process A for forming a half punched portion having the same shape as the through hole forming notch protruding on the other surface side of the base plate by performing half punching from the surface side of the base plate, and pushing back the half punched portion Step B for returning into the base plate, Step C for forming the base plate into a cylindrical shape and abutting both side edges to obtain a tubular body for brazed pipe, and half punching pushed back into the base plate in Step B The through hole is formed by brazing the both side edges of the base plate forming the cylindrical body for the brazed pipe using the brazing material layer of the base plate and the process D for removing the portion and forming the through hole. In the base plate in the process B. By the action of the half blanking portion returned, when matching the both side edges with each other by molding a material plate into a cylindrical shape in the step C, the deformation of the peripheral portion of the half blanking portion is prevented in the material plate. And the through-hole which consists of two notches is formed by removing a half punching part in the process D. FIG. Therefore, the shape accuracy and dimensional accuracy of the formed through hole are improved.
上記2)の熱交換器の製造方法によれば、少なくとも片面にろう材層を有するブレージングシートからなる素板の両側縁部におけるスリット形成用切り欠きを形成すべき部分に、素板の一方の面側から半抜き加工を施すことにより、素板の他方の面側に突出したスリット形成用切り欠きと同形状の半抜き部を形成する工程ａと、半抜き部をプッシュバックして素板内に戻す工程ｂと、素板におけるスリット形成用切り欠きとは幅方向にずれた部分に複数の管挿入穴を素板の長さ方向に間隔をおいて形成する工程ｃと、素板を筒状に成形して両側縁部どうしを突き合わせてろう付パイプ用筒状体を得る工程ｄと、工程ｃにおいて素板内に押し戻された半抜き部を除去して仕切部材挿入用スリットを形成する工程ｅと、ろう付パイプ用筒状体の両端部に閉鎖部材を配置する工程ｆと、両端部に閉鎖部材が配置されたろう付パイプ用筒状体を互いに間隔をおいて配置し、複数の熱交換管の両端部を上記ろう付パイプ用筒状体の管挿入穴内に挿入し、隣り合う熱交換管どうしの間にフィンを配置する工程ｇと、ろう付パイプ用筒状体を形成する素板の両側縁部どうしを、素板のろう材層を利用してろう付することにより仕切部材挿入用スリットを有するろう付パイプを形成し、さらに閉鎖部材および熱交換管をろう付パイプにろう付し、これと同時にフィンを熱交換管にろう付する工程ｈとを含むので、工程ｂにおいて素板内に戻された半抜き部の働きによって、工程ｄにおいて素板を筒状に成形して両側縁部どうしを突き合わせる際に、素板における半抜き部の周囲の部分の変形が防止される。そして、工程ｅにおいて半抜き部を除去することにより、２つのスリット形成用切り欠きからなる仕切部材挿入用スリットが形成される。したがって、形成された仕切部材挿入用スリットの形状精度および寸法精度が向上する。 According to the method for producing a heat exchanger of 2) above, at one part of the base plate, a slit forming notch is to be formed at both side edges of the base plate made of a brazing sheet having a brazing material layer on at least one side. A step a for forming a half punched portion having the same shape as the slit forming notch protruding on the other surface side of the base plate by performing a half punching process from the surface side, and the base plate by pushing back the half punched portion A step b of returning to the inside, a step c of forming a plurality of tube insertion holes at intervals in the length direction of the base plate in a portion shifted in the width direction from the slit forming notch in the base plate, and a base plate Step d to obtain a cylindrical body for brazed pipe by forming both ends of the tube into a cylindrical shape, and removing a half punched portion pushed back into the base plate in step c to form a slit for inserting a partition member Process e and both ends of the tubular body for brazed pipe The step f for disposing the closing member on the tube, and the brazed pipe cylinders having the closing members disposed on both ends thereof are arranged at intervals from each other. Inserting the fin into the tube insertion hole of the body and arranging fins between the adjacent heat exchange tubes, and the both side edges of the base plate forming the tubular body for brazed pipe, The brazing pipe having the slit for inserting the partition member is formed by brazing using the layer, and the closing member and the heat exchange pipe are brazed to the brazing pipe, and at the same time, the fin is brazed to the heat exchange pipe. In the process d, when the base plate is formed into a cylindrical shape and the both side edges are brought into contact with each other by the action of the half punched portion returned into the base plate in the step b, the base plate is included. The deformation of the part around the half punched part is prevented . And the slit for insertion of the partition member which consists of two notches for slit formation is formed by removing a half punching part in the process e. Therefore, the shape accuracy and dimensional accuracy of the formed partition member insertion slit are improved.
上記3)の熱交換器の製造方法によれば、前記工程ｄの前段階において、素板の両側縁部における流体通過口形成用切り欠きを形成すべき部分に、素板の一方の面側から半抜き加工を施すことにより、素板の他方の面側に突出した流体通過口形成用切り欠きと同形状の半抜き部を形成する工程ｉと、半抜き部をプッシュバックして素板内に戻す工程ｊとを実施し、前記工程ｄの後段階でかつ前記工程ｈの前段階において、工程ｊにおいて素板内に押し戻された半抜き部を除去して流体通過口を形成する工程ｋと、流体通過部材をろう付パイプ用筒状体の外周面に配置する工程ｌとを実施し、前記工程ｈにおいて流体通過部材をろう付パイプにろう付するので、工程ｊにおいて素板内に戻された半抜き部の働きによって、上記2)の方法の工程ｄにおいて素板を筒状に成形して両側縁部どうしを突き合わせる際に、素板における半抜き部の周囲の部分の変形が防止される。そして、工程ｅにおいて半抜き部を除去することにより、２つの冷媒通過口形成用切り欠きからなる冷媒通過口が形成される。したがって、形成された冷媒通過口の形状精度および寸法精度が向上する。
According to the method for manufacturing a heat exchanger according to 3) above, in the previous stage of the step d, the one side of the base plate is formed on the part where the fluid passage opening forming notches are to be formed at both side edges of the base plate. A step i for forming a half-cut portion having the same shape as the notch for forming a fluid passage port protruding to the other surface side of the base plate by performing a half-punch process from the base plate; And a step of removing the half punched portion pushed back into the base plate in the step j to form a fluid passage port in the step after the step d and in the step before the step h. k and the step l of arranging the fluid passage member on the outer peripheral surface of the cylindrical body for the brazing pipe, and brazing the fluid passage member to the brazing pipe in the step h. By the action of the half punched portion returned to
以下、この発明の実施形態を、図面を参照して説明する。なお、以下の説明において、図１の上下、左右を上下、左右というものとする。 Embodiments of the present invention will be described below with reference to the drawings. In the following description, the upper and lower sides and the left and right sides in FIG.
この実施形態は、この発明を図４および図５に示す熱交換器の製造に適用したものであり、以下の説明において、図４および図５と同一物には同一符号を付す。 In this embodiment, the present invention is applied to the manufacture of the heat exchanger shown in FIGS. 4 and 5. In the following description, the same components as those in FIGS. 4 and 5 are denoted by the same reference numerals.
図１〜図３はヘッダに用いられるろう付パイプ用筒状体の製造方法を示す。 1 to 3 show a method of manufacturing a tubular body for a brazed pipe used for a header.
まず、両面にアルミニウムろう材層（図示略）を有するブレージングシートからなる素板(20)を用意する（図１(a)参照）。ついで、この素板(20)の右側縁部に、たとえば上下からプレス加工を施すことにより、素板(20)の上面に、先端（右端）に向かって素板(20)の上面側から下面側に傾斜した第１傾斜面(21)を形成するとともに、第１傾斜面(21)の傾斜下端と下面との間に、第１傾斜面(21)と鈍角をなしかつ下面と直角をなす第１平坦面(22)を形成する（図１(b)参照）。ここで、両面にアルミニウムろう材層を有するブレージングシートからなる素板(20)に、上下からプレス加工を施すことにより第１傾斜面(21)および第１平坦面(22)を形成しているので、第１傾斜面(21)はろう材層により覆われることになる。なお、第１平坦面(22)はろう材層により覆われることはない。また、第１傾斜面(21)および第１平坦面(22)を形成する工程において、素板(20)における上面と第１傾斜面(21)との間の部分を部分的に上側に張り出させることによって、素板(20)の上面と第１傾斜面(21)との間に鈍角状のエッジ部(23)を形成する。 First, a base plate (20) made of a brazing sheet having aluminum brazing filler metal layers (not shown) on both sides is prepared (see FIG. 1 (a)). Next, by pressing the right edge of the base plate (20) from above and below, for example, the top surface of the base plate (20) and the bottom surface from the top surface side of the base plate (20) toward the tip (right end) Forming a first inclined surface (21) inclined to the side and forming an obtuse angle with the first inclined surface (21) and perpendicular to the lower surface between the lower end and the lower surface of the first inclined surface (21) A first flat surface (22) is formed (see FIG. 1 (b)). Here, the first inclined surface (21) and the first flat surface (22) are formed by pressing the base plate (20) made of a brazing sheet having aluminum brazing material layers on both sides from above and below. Therefore, the first inclined surface (21) is covered with the brazing material layer. The first flat surface (22) is not covered with the brazing material layer. Further, in the step of forming the first inclined surface (21) and the first flat surface (22), a portion of the base plate (20) between the upper surface and the first inclined surface (21) is partially stretched upward. By letting out, an obtuse edge portion (23) is formed between the upper surface of the base plate (20) and the first inclined surface (21).
ついで、素板(20)の左側縁部に、たとえば上下からプレス加工を施すことにより、素板(20)の下面に、先端（左端）に向かって素板(20)の下面側から上面側に傾斜した第２傾斜面(24)を形成するとともに、第２傾斜面(24)の傾斜下端と下面との間に、第２傾斜面(24)と鈍角をなしかつ下面と直角をなす第２平坦面(25)を形成する（図１(c)参照）。ここで、両面にアルミニウムろう材層を有するブレージングシートからなる素板(20)に、上下からプレス加工を施すことにより第２傾斜面(24)および第２平坦面(25)を形成しているので、第２傾斜面(24)および第２平坦面(25)もろう材層により覆われることになる。なお、第２平坦面(25)の上下方向の幅は、第１平坦面(22)の上下方向の幅よりも狭くなっている。また、第２傾斜面(24)および第２平坦面(25)を形成する工程において、素板(20)の上面と第２傾斜面(24)との間に、鋭角状のエッジ部(26)の形成する。このエッジ部(26)において素板(20)の上面と第２傾斜面(24)とがなす角度と、素板(20)の右側縁部の鈍角状エッジ部(23)において素板(20)の上面と第１傾斜面(21)とがなす角度とは補角の関係にある。また、素板(20)の上面の左側縁部および第２傾斜面(24)の左側縁部のエッジ部(26)寄りの部分にはろう材層が存在しない部分がある。 Next, by pressing the left edge of the base plate (20) from above and below, for example, on the bottom surface of the base plate (20), toward the tip (left end), from the bottom surface side of the base plate (20) to the top surface side A second inclined surface (24) inclined to the second surface, and an obtuse angle with the second inclined surface (24) and perpendicular to the lower surface between the lower end of the second inclined surface (24) and the lower surface. Two flat surfaces (25) are formed (see FIG. 1 (c)). Here, the second inclined surface (24) and the second flat surface (25) are formed by pressing the base plate (20) made of a brazing sheet having an aluminum brazing material layer on both sides from above and below. Therefore, the second inclined surface (24) and the second flat surface (25) are also covered with the brazing material layer. The vertical width of the second flat surface (25) is narrower than the vertical width of the first flat surface (22). In the step of forming the second inclined surface (24) and the second flat surface (25), an acute edge portion (26) is formed between the upper surface of the base plate (20) and the second inclined surface (24). ) Formation. The angle formed by the upper surface of the base plate (20) and the second inclined surface (24) at the edge portion (26) and the base plate (20 at the obtuse angled edge portion (23) at the right edge of the base plate (20). ) And the first inclined surface (21) have a complementary angle relationship. In addition, there is a portion where the brazing material layer does not exist in a portion near the edge portion (26) of the left side edge portion of the upper surface of the base plate (20) and the left side edge portion of the second inclined surface (24).
ついで、右側ヘッダ(3)のろう付パイプ(10)を形成する素板(20)の左右両側縁部におけるスリット形成用切り欠き(13a)を形成すべき部分に、素板(20)の一方の面側、ここでは下面側から半抜き加工を施すことにより、素板(20)の他方の面側（上面側）に突出したスリット形成用切り欠き(13a)と同形状の半抜き部(27)を形成する（図１(d)および図２参照）。また、図示や省略したが、右側ヘッダ(3)のろう付パイプ(10)を形成する素板(20)の左右両側縁部における冷媒出口形成用切り欠き(12a)を形成すべき部分に、素板(20)の一方の面側から半抜き加工を施すことにより、素板(20)の他方の面側に突出した冷媒出口形成用切り欠き(12a)と同形状の半抜き部を形成する。 Next, one side of the base plate (20) is formed at the portion where the slit forming notches (13a) are to be formed at the left and right side edges of the base plate (20) forming the brazed pipe (10) of the right header (3). The half-cut part of the same shape as the slit forming notch (13a) projecting to the other side (upper side) of the base plate (20) 27) (see FIG. 1 (d) and FIG. 2). Although not shown or omitted, the coolant outlet forming notches (12a) at the left and right side edges of the base plate (20) forming the brazed pipe (10) of the right header (3) should be formed, By performing half-cutting from one side of the base plate (20), a half-cut portion having the same shape as the refrigerant outlet forming notch (12a) protruding to the other side of the base plate (20) is formed. To do.
これと同様に、左側ヘッダ(2)のろう付パイプ(10)を形成する素板(20)の左右両側縁部におけるスリット形成用切り欠き(13a)を形成すべき部分に、素板(20)の一方の面側から半抜き加工を施すことにより、素板(20)の他方の面側に突出したスリット形成用切り欠き(13a)と同形状の半抜き部(27)を形成する。また、左側ヘッダ(2)のろう付パイプ(10)を形成する素板(20)の左右両側縁部における冷媒入口形成用切り欠きを形成すべき部分に、素板(20)の一方の面側から半抜き加工を施すことにより、素板(20)の他方の面側に突出した冷媒入口形成用切り欠きと同形状の半抜き部を形成する。 Similarly, the base plate (20) is formed at the portion where the slit forming notches (13a) are to be formed at the left and right side edges of the base plate (20) forming the brazing pipe (10) of the left header (2). ) Is half-punched from one surface side to form a half-cut portion (27) having the same shape as the slit-forming cutout (13a) protruding to the other surface side of the base plate (20). Also, one side of the base plate (20) is formed in the portion where the notch for forming the refrigerant inlet is to be formed at the left and right side edges of the base plate (20) forming the brazed pipe (10) of the left header (2). By performing a half-cutting process from the side, a half-cut part having the same shape as the cut-out for forming a refrigerant inlet projecting to the other surface side of the base plate (20) is formed.
上述したすべての半抜き部(27)は、素板(20)とは分断されている。ついで、すべての半抜き部(27)をプッシュバックして素板(20)内に戻す（図１(e)および図３参照）。 All the half punched portions (27) described above are separated from the base plate (20). Then, all the half punched portions (27) are pushed back and returned into the base plate (20) (see FIG. 1 (e) and FIG. 3).
ついで、素板(20)の幅方向の中間部（素板(20)における半抜き部(27)とは幅方向にずれた部分）に上側に膨出した横断面円弧状の曲壁部(32)を形成した後、曲壁部(32)に、その周方向に伸びる熱交換管挿入穴(14)を素板(20)の長さ方向に間隔をおいて複数形成する（図１(f)参照）。なお、曲壁部(32)を形成する際に、素板(20)における曲壁部(32)の左右両側部分は、上面が外側に来るように、若干下方に曲げられる。 Next, a curved wall portion having an arcuate cross section bulging upward at the intermediate portion in the width direction of the base plate (20) (the portion shifted in the width direction from the half punched portion (27) in the base plate (20)) ( 32), a plurality of heat exchange tube insertion holes (14) extending in the circumferential direction are formed in the curved wall portion (32) at intervals in the length direction of the base plate (20) (FIG. 1 ( see f)). When forming the curved wall portion (32), the left and right side portions of the curved wall portion (32) of the base plate (20) are bent slightly downward so that the upper surface is on the outside.
ついで、素板(20)を筒状に成形し、両側縁部の両傾斜面(21)(24)どうしを面接触させるとともに両平坦面(22)(25)どうしを当接させて、ろう付パイプ用筒状体(34)を得る（図１(g)参照）。 Next, the base plate (20) is formed into a cylindrical shape, and both inclined surfaces (21) and (24) of both side edges are brought into surface contact with each other and both flat surfaces (22) and (25) are brought into contact with each other. A cylindrical body for a pipe (34) is obtained (see FIG. 1 (g)).
上述した曲壁部(32)の形成時およびろう付パイプ用筒状体(34)の成形時には、半抜き部(27)の働きにより、素板(20)における半抜き部(27)の周囲の部分の変形が防止される。 During the formation of the curved wall (32) and the molding of the tubular body for brazed pipe (34), the periphery of the half-bumped portion (27) in the base plate (20) is obtained by the action of the half-bumped portion (27) The deformation of the portion is prevented.
ついで、素板(20)内に押し戻されているすべての半抜き部(27)を除去し、右側ヘッダ(3)のろう付パイプ(10)を形成するろう付パイプ用筒状体(34)に、スリット形成用切り欠き(13a)からなる仕切部材挿入用スリット(13)、および冷媒出口形成用切り欠き(12a)からなる冷媒出口(12)を形成するとともに（図１(h)参照）、左側ヘッダ(2)のろう付パイプ(10)を形成するろう付パイプ用筒状体(34)にスリット形成用切り欠き(13a)からなる仕切部材挿入用スリット(13)および冷媒入口形成用切り欠きからなる冷媒入口を形成する。 Next, the tubular body (34) for the brazed pipe that forms the brazed pipe (10) of the right header (3) by removing all the half punched portions (27) pushed back into the base plate (20). In addition, a partition member insertion slit (13) comprising a slit forming notch (13a) and a refrigerant outlet (12) comprising a refrigerant outlet forming notch (12a) are formed (see FIG. 1 (h)). A slit (13) for inserting a partition member formed of a slit-forming notch (13a) and a refrigerant inlet formation in the brazed pipe cylindrical body (34) forming the brazed pipe (10) of the left header (2) A refrigerant inlet made of a notch is formed.
また、扁平状の熱交換管(4)、アルミニウム製コルゲートフィン(5)、両面にろう材層を有するアルミニウムブレージングシート製サイドプレート(6)、アルミニウム製仕切部材(7)、アルミニウム製入口部材(8)、アルミニウム製出口部材(9)およびアルミニウム製閉鎖部材(11)を用意する。 Also, a flat heat exchange tube (4), an aluminum corrugated fin (5), an aluminum brazing sheet side plate (6) having a brazing filler metal layer on both sides, an aluminum partition member (7), an aluminum inlet member ( 8) An aluminum outlet member (9) and an aluminum closing member (11) are prepared.
熱交換管(4)は、図５に示すように、両面にろう材層を有するアルミニウムブレージングシートからなるとともに、２つの平坦壁形成部と、両平坦壁形成部を連結しかつ一方の側壁を形成する連結部と、両平坦壁形成部における連結部とは反対側の側縁より上方隆起状に一体成形されかつ他方の側壁を形成する側壁用凸条と、両平坦壁形成部に一体成形された複数の補強壁用凸条とを備えた金属板を、連結部の両側でヘアピン状に曲げることにより、側壁用凸条どうしおよび補強壁用凸条どうしを当接させたものであり、この状態では完全な管とはなっていない。しかしながら、図１に示す熱交換器(1)の熱交換管と同様に符号(4)を付す。なお、熱交換管(4)として、複数の流体通路が並列状に形成されたアルミニウム押出形材からなるものを用いてもよい。 As shown in FIG. 5, the heat exchange pipe (4) is made of an aluminum brazing sheet having a brazing filler metal layer on both sides, and connects two flat wall forming portions, both flat wall forming portions and one side wall. The connecting portion to be formed, the protruding protrusion for the side wall which is integrally formed in a raised shape above the side edge opposite to the connecting portion in both flat wall forming portions, and the other side wall is formed integrally with the flat wall forming portion. By bending the metal plate provided with a plurality of reinforcing wall ridges in a hairpin shape on both sides of the connecting portion, the side wall ridges and the reinforcing wall ridges are brought into contact with each other, In this state, it is not a complete tube. However, like the heat exchange pipe of the heat exchanger (1) shown in FIG. The heat exchange pipe (4) may be made of an aluminum extruded profile in which a plurality of fluid passages are formed in parallel.
ついで、両ろう付パイプ用筒状体(34)を互いに間隔をおいて配置するとともに、複数の熱交換管(4)とコルゲートフィン(5)とを交互に配置し、熱交換管(4)の両端部を両ろう付パイプ用筒状体(34)の熱交換管挿入穴(14)に挿入する。また、両端のコルゲートフィン(5)の外側にサイドプレート(6)を配置する。また、両ろう付パイプ用筒状体(34)の両端部にアルミニウム製閉鎖部材(11)を配置する。さらに、各仕切部材挿入用スリット(13)内にアルミニウム製仕切部材(7)を外側から挿入するとともに、入口部材(8)を流体流入路(8a)が流体入口に通じるように配置し、出口部材(9)を流体流出路(9a)が流体出口(12)に通じるように配置する。そして、すべての部品を適当な手段で仮止めする。 Next, both brazed pipe cylinders (34) are arranged at intervals, and a plurality of heat exchange pipes (4) and corrugated fins (5) are alternately arranged to form heat exchange pipes (4). Are inserted into the heat exchange pipe insertion holes (14) of the tubular body (34) for both brazed pipes. Further, the side plates (6) are arranged outside the corrugated fins (5) at both ends. In addition, an aluminum closing member (11) is disposed at both ends of both the brazed pipe cylinders (34). Further, an aluminum partition member (7) is inserted into each partition member insertion slit (13) from the outside, and the inlet member (8) is arranged so that the fluid inflow passage (8a) communicates with the fluid inlet, and the outlet The member (9) is arranged so that the fluid outflow passage (9a) communicates with the fluid outlet (12). Then, all parts are temporarily fixed by appropriate means.
その後、所定の温度に加熱することにより、ろう付パイプ用筒状体(34)の両傾斜面(21)(24)どうしおよび両平坦面(22)(25)どうしをろう付することにより、仕切部材挿入用スリット(13)および冷媒出口(12)を有する右ヘッダ(3)のろう付パイプ(10)と、仕切部材挿入用スリット(13)および冷媒入口を有する左ヘッダ(2)のろう付パイプ(10)とを製造するとともに、各ろう付パイプ(10)に閉鎖部材(11)をろう付してヘッダ(3)(2)を製造し、さらにろう付パイプ(10)に仕切部材(7)、入口部材(8)および出口部材(9)をろう付する。これと同時に、熱交換管(4)の側壁用凸条どうしおよび補強壁用凸条どうしをろう付して完全な管とし、熱交換管(4)をろう付パイプ(10)にろう付するとともに、熱交換管(4)とコルゲートフィン(5)およびコルゲートフィン(5)とサイドプレート(6)とをろう付する。こうして、熱交換器(1)が製造される。 Then, by brazing the two inclined surfaces (21) (24) and the two flat surfaces (22) (25) of the cylindrical body for brazed pipe (34) by heating to a predetermined temperature, Brazing pipe (10) of right header (3) having slit for inserting partition member (13) and refrigerant outlet (12) and brazing of left header (2) having slit for inserting partition member (13) and refrigerant inlet And the brazing pipe (10), the brazing pipe (10) is brazed with the closing member (11) to produce the header (3) (2), and the brazing pipe (10) is further divided into partitioning members. (7) The inlet member (8) and the outlet member (9) are brazed. At the same time, the side wall protrusions and the reinforcing wall protrusions of the heat exchange pipe (4) are brazed to form a complete pipe, and the heat exchange pipe (4) is brazed to the brazing pipe (10). At the same time, the heat exchange pipe (4) and the corrugated fin (5) and the corrugated fin (5) and the side plate (6) are brazed. Thus, the heat exchanger (1) is manufactured.
このような熱交換器(1)は、たとえば圧縮機、コンデンサ、減圧器およびエバポレータを備えており、かつフロン系冷媒を使用する冷凍サイクルのコンデンサとして用いられる。この冷凍サイクルは、カーエアコンとして車両に搭載される。 Such a heat exchanger (1) includes, for example, a compressor, a condenser, a decompressor, and an evaporator, and is used as a condenser for a refrigeration cycle using a chlorofluorocarbon refrigerant. This refrigeration cycle is mounted on a vehicle as a car air conditioner.
上記実施形態においては、熱交換器の両ヘッダが、それぞれ仕切部材により同数のヘッダ部に仕切られており、一方のヘッダの長さ方向の一端部に流体入口が形成されるとともに、他方のヘッダの長さ方向の他端部に流体出口が形成されているが、これに限定されるものではなく、熱交換器の一方のヘッダが仕切部材により複数のヘッダ部に仕切られ、他方のヘッダが、上記一方のヘッダのヘッダ部数よりも１つ少ない数でかつ第１ヘッダの隣り合う２つのヘッダ部に跨るように配置されたヘッダ部を備えており、上記一方のヘッダの長さ方向の一端部のヘッダ部に流体入口が形成されるとともに、同他端部のヘッダ部に流体出口が形成されていてもよい。 In the above embodiment, both headers of the heat exchanger are partitioned into the same number of header portions by partition members, respectively, and a fluid inlet is formed at one end portion in the length direction of one header and the other header. However, the present invention is not limited to this, and one header of the heat exchanger is partitioned into a plurality of header portions by a partition member, and the other header is And a header portion disposed so as to straddle two adjacent header portions of the first header, and one end in the length direction of the one header. The fluid inlet may be formed in the header portion of the other end portion, and the fluid outlet may be formed in the header portion of the other end portion.
(1)：熱交換器
(2)(3)：ヘッダ
(4)：熱交換管
(5)：コルゲートフィン
(7)：仕切部材
(10)：ろう付パイプ
(11)：閉鎖部材
(12)：冷媒出口（冷媒通過口、貫通穴）
(12a)：冷媒出口形成用切り欠き（貫通穴形成用切り欠き）
(13)：仕切部材挿入用スリット（貫通穴）
(13a)：スリット形成用切り欠き（貫通穴形成用切り欠き）
(14)：管挿入穴
(20)：素板
(27)：半抜き部
(1): Heat exchanger
(2) (3): Header
(4): Heat exchange pipe
(5): Corrugated fin
(7): Partition member
(10): Brazed pipe
(11): Closing member
(12): Refrigerant outlet (refrigerant passage, through hole)
(12a): Refrigerant outlet notch (through hole notch)
(13): Slit for inserting partition member (through hole)
(13a): Notch for slit formation (notch for through hole formation)
(14): Tube insertion hole
(20): Base plate
(27): Half punched part
Claims (3)
少なくとも片面にろう材層を有するブレージングシートからなる素板の両側縁部における貫通穴形成用切り欠きを形成すべき部分に、素板の一方の面側から半抜き加工を施すことにより、素板の他方の面側に突出した貫通穴形成用切り欠きと同形状の半抜き部を形成する工程Ａと、半抜き部をプッシュバックして素板内に戻す工程Ｂと、素板を筒状に成形して両側縁部どうしを突き合わせてろう付パイプ用筒状体を得る工程Ｃと、工程Ｂにおいて素板内に押し戻された半抜き部を除去して貫通穴を形成する工程Ｄと、ろう付パイプ用筒状体を形成する素板の両側縁部どうしを、素板のろう材層を利用してろう付することにより貫通穴を有するろう付パイプをつくる工程Ｅとを含むろう付パイプの製造方法。 A base plate made of a brazing sheet having a brazing material layer on at least one side is formed into a cylindrical shape and both side edges are abutted, and both side edges of the base plate abutting each other use the brazing material layer of the base plate. A brazed pipe consisting of notches for forming through holes formed on both side edges of the base plate, where the through holes are formed on both side edges of the base plate that are abutted against each other. A method of manufacturing comprising:
The base plate is subjected to half-cutting from one side of the base plate at a portion where notches for forming through holes are to be formed at both side edges of the base plate made of a brazing sheet having a brazing material layer on at least one side. A step A for forming a half punched portion having the same shape as the through hole forming notch protruding on the other surface side, a step B for pushing back the half punched portion and returning it into the base plate, and the base plate in a cylindrical shape Forming a through hole by removing the half-punched portion pushed back into the base plate in step B; Brazing including a step E of forming a brazed pipe having a through hole by brazing both side edges of a base plate forming a cylindrical body for a brazed pipe using a brazing material layer of the base plate. Pipe manufacturing method.
少なくとも片面にろう材層を有するブレージングシートからなる素板の両側縁部におけるスリット形成用切り欠きを形成すべき部分に、素板の一方の面側から半抜き加工を施すことにより、素板の他方の面側に突出したスリット形成用切り欠きと同形状の半抜き部を形成する工程ａと、半抜き部をプッシュバックして素板内に戻す工程ｂと、素板におけるスリット形成用切り欠きとは幅方向にずれた部分に複数の管挿入穴を素板の長さ方向に間隔をおいて形成する工程ｃと、素板を筒状に成形して両側縁部どうしを突き合わせてろう付パイプ用筒状体を得る工程ｄと、工程ｃにおいて素板内に押し戻された半抜き部を除去して仕切部材挿入用スリットを形成する工程ｅと、ろう付パイプ用筒状体の両端部に閉鎖部材を配置する工程ｆと、両端部に閉鎖部材が配置されたろう付パイプ用筒状体を互いに間隔をおいて配置し、複数の熱交換管の両端部を上記ろう付パイプ用筒状体の管挿入穴内に挿入し、隣り合う熱交換管どうしの間にフィンを配置する工程ｇと、ろう付パイプ用筒状体を形成する素板の両側縁部どうしを、素板のろう材層を利用してろう付することにより仕切部材挿入用スリットを有するろう付パイプを形成し、さらに閉鎖部材および熱交換管をろう付パイプにろう付し、これと同時にフィンを熱交換管にろう付する工程ｈとを含む熱交換器の製造方法。 A pair of headers spaced from each other, a plurality of heat exchange tubes disposed between the headers and having both end portions connected to the headers, fins disposed between adjacent heat exchange tubes, A partition member that divides at least one of the headers into a plurality of header portions arranged in the length direction of the header, and the header having the plurality of header portions from a brazing sheet having a brazing material layer on at least one side And a brazing pipe in which both side edges of the base plate are brazed using the brazing material layer of the base plate, and both side edges of the base plate are butted together. The brazing pipe is formed by a closing member that is brazed to both ends of the brazed pipe and closes the opening of both ends. A partition member insertion slit extending in the direction is formed, and the partition member insertion slit is formed by slit forming notches formed on both side edges of the base plate, and the partition member is inserted into the partition member insertion slit from the outside. A plurality of tube insertion holes are formed in a portion that is brazed to the brazed pipe in the state and is shifted in the circumferential direction from the slit for inserting the partition member in the brazed pipe of the header, and both ends of the heat exchange tube are formed as tube insertion holes. A method of manufacturing a heat exchanger that is inserted and brazed to a brazed pipe, comprising:
By applying half-cutting from one side of the base plate to the part where slit notches for forming both sides of the base plate made of a brazing sheet having a brazing material layer on at least one side are to be formed, A step a for forming a half-cut portion having the same shape as the slit-forming notch protruding on the other surface side, a step b for pushing the half-cut portion back into the base plate, and a slit-forming cut in the base plate The notch is a step c in which a plurality of tube insertion holes are formed at intervals in the length direction of the base plate at a portion shifted in the width direction, and the base plate is formed into a cylindrical shape and the side edges are brought into contact with each other. A step d for obtaining a tubular body for a pipe, a step e for forming a slit for inserting a partition member by removing the half punched portion pushed back into the base plate in the step c, and both ends of the tubular body for a brazed pipe Step f for disposing the closing member on the part and both ends The brazing pipe cylinders having the closing members disposed on the pipes are spaced apart from each other, and both end portions of the plurality of heat exchange pipes are inserted into the tube insertion holes of the brazing pipe cylinders, so that the adjacent heat A partition member by brazing the step g of arranging fins between the exchange pipes and both side edges of the base plate forming the cylindrical body for the brazed pipe using the brazing material layer of the base plate Forming a brazed pipe having an insertion slit, and brazing the closing member and the heat exchange pipe to the brazed pipe, and simultaneously brazing the fins to the heat exchange pipe. Method.
前記工程ｄの前段階において、素板の両側縁部における流体通過口形成用切り欠きを形成すべき部分に、素板の一方の面側から半抜き加工を施すことにより、素板の他方の面側に突出した流体通過口形成用切り欠きと同形状の半抜き部を形成する工程ｉと、半抜き部をプッシュバックして素板内に戻す工程ｊとを実施し、前記工程ｄの後段階でかつ前記工程ｈの前段階において、工程ｊにおいて素板内に押し戻された半抜き部を除去して流体通過口を形成する工程ｋと、流体通過部材をろう付パイプ用筒状体の外周面に配置する工程ｌとを実施し、前記工程ｈにおいて流体通過部材をろう付パイプにろう付する請求項２記載の熱交換器の製造方法。 A fluid having a fluid passage opening formed in at least one of the headers, the fluid passage opening being formed of a fluid passage opening forming notch formed on both side edges of the base plate, and having a flow path leading to the fluid passage opening A method of manufacturing a heat exchanger in which a passing member is brazed to an outer peripheral surface of a brazing pipe of a header,
In the previous stage of the step d, the other part of the base plate is subjected to a half-cutting process from one side of the base plate to the portion where the fluid passage opening forming notches are to be formed at both side edges of the base plate. A step i of forming a half punched portion having the same shape as the fluid passage opening forming notch protruding to the surface side, and a step j of pushing back the half punched portion and returning it into the base plate, A step k that forms a fluid passage opening by removing the half punched portion pushed back into the base plate in the step j at a later stage and in the previous step of the step h; and a tubular body for brazing pipe 3. The method of manufacturing a heat exchanger according to claim 2, wherein the step 1 is arranged on the outer peripheral surface of the heat exchanger, and the fluid passage member is brazed to the brazed pipe in the step h.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012164828A1 (en) | 2011-05-30 | 2012-12-06 | パナソニック株式会社 | Cell block and method for manufacturing same |
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| JPH0255661A (en) * | 1988-08-17 | 1990-02-26 | Showa Alum Corp | Production of pipe for brazing having excellent connectability to tube or the like |
| JP2002143942A (en) * | 2000-11-04 | 2002-05-21 | Jonan Seisakusho:Kk | Press forming method for holes in proximity and emboss |
| JP2007075888A (en) * | 2005-09-16 | 2007-03-29 | Chuo Spring Co Ltd | Press punching method, press punching die, and spring |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0255661A (en) * | 1988-08-17 | 1990-02-26 | Showa Alum Corp | Production of pipe for brazing having excellent connectability to tube or the like |
| JP2002143942A (en) * | 2000-11-04 | 2002-05-21 | Jonan Seisakusho:Kk | Press forming method for holes in proximity and emboss |
| JP2007075888A (en) * | 2005-09-16 | 2007-03-29 | Chuo Spring Co Ltd | Press punching method, press punching die, and spring |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012164828A1 (en) | 2011-05-30 | 2012-12-06 | パナソニック株式会社 | Cell block and method for manufacturing same |
| US9799931B2 (en) | 2011-05-30 | 2017-10-24 | Panasonic Intellectual Property Management Co., Ltd. | Battery block and method of manufacturing the same |
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