JPH03243233A - Manufacture of header pipe for heat exchanger - Google Patents
Manufacture of header pipe for heat exchangerInfo
- Publication number
- JPH03243233A JPH03243233A JP3842890A JP3842890A JPH03243233A JP H03243233 A JPH03243233 A JP H03243233A JP 3842890 A JP3842890 A JP 3842890A JP 3842890 A JP3842890 A JP 3842890A JP H03243233 A JPH03243233 A JP H03243233A
- Authority
- JP
- Japan
- Prior art keywords
- header pipe
- pipe material
- partition plate
- bending
- pipe blank
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 14
- 238000005192 partition Methods 0.000 claims abstract description 76
- 238000005452 bending Methods 0.000 claims abstract description 34
- 238000000034 method Methods 0.000 claims abstract description 34
- 239000000463 material Substances 0.000 claims description 75
- 238000003780 insertion Methods 0.000 claims description 22
- 230000037431 insertion Effects 0.000 claims description 22
- 230000002093 peripheral effect Effects 0.000 claims description 8
- 238000005219 brazing Methods 0.000 abstract description 9
- 230000002950 deficient Effects 0.000 abstract description 2
- 238000010438 heat treatment Methods 0.000 abstract 1
- 238000012986 modification Methods 0.000 description 10
- 230000004048 modification Effects 0.000 description 10
- 238000005553 drilling Methods 0.000 description 6
- 238000005520 cutting process Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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
- F28F9/0202—Header boxes having their inner space divided by partitions
- F28F9/0204—Header boxes having their inner space divided by partitions for elongated header box, e.g. with transversal and longitudinal partitions
- F28F9/0209—Header boxes having their inner space divided by partitions for elongated header box, e.g. with transversal and longitudinal partitions having only transversal partitions
- F28F9/0212—Header boxes having their inner space divided by partitions for elongated header box, e.g. with transversal and longitudinal partitions having only transversal partitions the partitions being separate elements attached to header boxes
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は熱交換器、例えば各種冷房装置の凝縮器や車両
用ラジェータ等の構成部品であるヘッダーパイプの製造
方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a method for manufacturing a header pipe which is a component of a heat exchanger, for example, a condenser of various types of cooling equipment or a radiator for a vehicle.
（従来の技術）
従来、この種のヘッダーパイプの製造方法として第２図
に示すものが知られている（実開昭６３−４９１９３号
）。(Prior Art) Conventionally, as a method for manufacturing this type of header pipe, the method shown in FIG. 2 is known (Utility Model Application No. 49193/1983).
この製造方法は、予め円筒状に形成されたヘッダーパイ
プ素材１に、熱交換チューブ２の挿入接続する接続孔３
を孔開は加工するとともに、ヘッダーパイプ素材１内を
仕切る仕切り板４を挿入する挿入孔５を孔開は加工する
。その後、ヘッダーパイプ素材１の外側から接続孔３に
は熱交換チューブ２を挿入し、挿入孔５には仕切り板４
を挿入し、この仕切り板４を仮止めする。この仮止めの
後にろう付けし仕切り板４をヘッダーパイプ素材１に固
着する。In this manufacturing method, a connection hole 3 into which a heat exchange tube 2 is inserted and connected is inserted into a header pipe material 1 which is previously formed into a cylindrical shape.
At the same time, an insertion hole 5 into which a partition plate 4 that partitions the inside of the header pipe material 1 is inserted is formed. After that, the heat exchange tube 2 is inserted into the connection hole 3 from the outside of the header pipe material 1, and the partition plate 4 is inserted into the insertion hole 5.
is inserted, and this partition plate 4 is temporarily fixed. After this temporary fixing, the partition plate 4 is fixed to the header pipe material 1 by brazing.
（発明が解決しようとする課題）
このように従来のヘッダーパイプの製造方法においては
仕切り仮挿入用の挿入孔５を設けなければならず、この
孔開は加工が必要不可欠となっていた。また、この挿入
孔５は仕切り板４の挿入部分６を挿入し得る大きさ、即
ちヘッダーパイプ素材１の略半円周に亘って大きく開口
することを要する。従って、仕切り板４の挿入後に行な
われるろう付は工程において、この挿入孔５においてろ
う付は不良を起し易く、熱媒体漏れの原因となっていた
。更に、このような大きな開口をヘッダーパイプ素材１
の側壁に設けるときは、ヘッダーパイプ素材１の強度が
著しく低下するため、この挿入孔５の孔開は加工の際や
接続孔３の孔開は加工の際に、このヘッダーパイプ素材
１が変形するという問題点を有していた。(Problems to be Solved by the Invention) As described above, in the conventional header pipe manufacturing method, it is necessary to provide the insertion hole 5 for temporary insertion of the partition, and drilling of this hole is essential. Further, the insertion hole 5 needs to be large enough to allow the insertion part 6 of the partition plate 4 to be inserted thereinto, that is, it needs to be wide enough to cover approximately half the circumference of the header pipe material 1. Therefore, during the brazing process performed after inserting the partition plate 4, the brazing at the insertion hole 5 tends to be defective, causing heat medium leakage. Furthermore, such a large opening is made of header pipe material 1.
When the header pipe material 1 is provided on the side wall of the header pipe, the strength of the header pipe material 1 is significantly reduced. There was a problem with this.
本発明の目的は前記従来の問題点に鑑み、仕切り仮挿入
用の大きな挿入孔を設けることなく、かつ熱媒体漏れや
製造工程中にヘッダーパイプ素材か変形することがない
熱交換器用ヘッダーパイプの製造方法を提供することに
ある。In view of the above-mentioned conventional problems, an object of the present invention is to provide a header pipe for a heat exchanger that does not require a large insertion hole for temporary insertion of a partition, and that does not cause heat medium leakage or deformation of the header pipe material during the manufacturing process. The purpose is to provide a manufacturing method.
（課題を解決するための手段）
本発明は前記課題を解決するため、平板状のヘッダーパ
イプ素材を筒状に曲げるとともに、該ヘッダーパイプ素
材内に熱媒体案内用の仕切り板を挿入し、該仕切り板を
該ヘッダーパイプ素材にろう付けする熱交換器用ヘッダ
ーパイプの製造方法において、平板状のヘッダーパイプ
素材を断面略Ｕ字状に曲げる第１曲げ工程と、該第１曲
げ工程の後に該ヘッダーパイプ素材の曲面部の内面に該
内面に沿って周縁が圧接し得る前記仕切り板をヘッダー
パイプ素材の開口部側から挿入する挿入工程と、該挿入
工程の後に該ヘッダーパイプ素材の開口部側を内側に曲
げ開口端部を当接させるとともに、該開口部側を該仕切
り板の周縁に圧接させる第２曲げ工程とを有することを
特徴とする。(Means for Solving the Problems) In order to solve the above problems, the present invention bends a flat header pipe material into a cylindrical shape, inserts a partition plate for guiding a heat medium into the header pipe material, and In a method for manufacturing a header pipe for a heat exchanger in which a partition plate is brazed to the header pipe material, a first bending step of bending a flat header pipe material into a substantially U-shaped cross section, and a step of bending the header pipe material after the first bending step. an insertion step of inserting the partition plate whose periphery can press against the inner surface of the curved surface portion of the pipe material along the inner surface from the opening side of the header pipe material; and after the insertion step, inserting the partition plate from the opening side of the header pipe material. It is characterized by comprising a second bending step of bringing the bending opening end into contact with the inner side and pressing the opening side against the peripheral edge of the partition plate.
（作 用）
本発明によれば、第１曲げ工程で断面略Ｕ字状のヘッダ
ーパイプ素材が形成され、このヘッダーパイプ素材の開
口部側から仕切り板を挿入する。(Function) According to the present invention, a header pipe material having a substantially U-shaped cross section is formed in the first bending step, and a partition plate is inserted from the opening side of this header pipe material.
次いで、このヘッダーパイプ素材の開口部側を内側に曲
げる。これにより、仕切り板がヘッダーパイプ素材内に
圧接し、仮止めされる。Next, the opening side of this header pipe material is bent inward. As a result, the partition plate is pressed into contact with the header pipe material and temporarily fixed.
（実施例）
第１図、第３図乃至第１３図は本発明の一実施例を示す
もので、第１図はヘッダーパイプを構成部品とする熱交
換器の斜視図である。(Embodiment) FIGS. 1, 3 to 13 show an embodiment of the present invention, and FIG. 1 is a perspective view of a heat exchanger having a header pipe as a component.
図中、１０は車両用のラジェータ等として使用される熱
交換器、１１は上下に延び対向する一対の円筒状のヘッ
ダーパイプである。この各ヘッダパイプ１１には複数段
に熱交換チューブ１２が接続し、この熱交換チューブ１
２間には伝熱フィン１３が介装されている。また、この
ヘッダーパイプ１１内には円盤状の仕切り板１４が装着
されている。仕切り板１４は所定間隔をおいて多数有し
、この各仕切り板１４により上部の熱媒体流入パイプ１
５から下部の熱媒体流出パイプ１６に熱交換チューブ１
２を介して蛇行状に熱媒体を流すようになっている。In the figure, 10 is a heat exchanger used as a radiator for a vehicle, and 11 is a pair of cylindrical header pipes extending vertically and facing each other. Heat exchange tubes 12 are connected to each header pipe 11 in multiple stages, and the heat exchange tubes 1
A heat transfer fin 13 is interposed between the two. Further, a disk-shaped partition plate 14 is installed inside the header pipe 11. A large number of partition plates 14 are provided at predetermined intervals, and each partition plate 14 allows the upper heat medium inflow pipe 1 to
Heat exchange tube 1 from 5 to the lower heat medium outflow pipe 16
2, the heat medium is made to flow in a meandering manner.
第３図はこのヘッダーパイプ１１と熱交換チュブ１２及
び仕切り板１４との装着状態を示すものである。この各
ヘッダーパイプ１１の対向面には上下に複数の接続孔１
７が設けられている。この接続孔１７には熱交換チュー
ブ１２の端が挿入ろう付けされ、また、ヘッダーパイプ
１１内で各熱交換チューブ１２間には仕切り板１４がろ
う付けされている。FIG. 3 shows how the header pipe 11, heat exchange tube 12, and partition plate 14 are attached. Each header pipe 11 has a plurality of connection holes 1 vertically on the opposing surface.
7 is provided. The ends of the heat exchange tubes 12 are inserted and brazed into the connection holes 17, and partition plates 14 are brazed between the heat exchange tubes 12 within the header pipe 11.
第４図（ａ） （ｂ）乃至第１０図は前述のヘッダーパ
イプ１１の製造方法を示している。ここで、第４図（ａ
） （ｂ）は製造方法の第１曲げ工程を示している。4(a) to 10 show a method of manufacturing the header pipe 11 described above. Here, Fig. 4 (a
) (b) shows the first bending step of the manufacturing method.
即ち、ヘッダーパイプ１１の上下の長さ寸法及び周側壁
の周寸法を有する平板でろう材がクラッドされたヘッダ
ーパイプ素材１８を用意する。このヘッダーパイプ素材
１８を第４図（ａ）に示すように半円形状の溝１９を有
するプレス機２０のダイ２１上に置き、これを下端が半
円形状の曲げ用ポンチ２２により第４図（ｂ）に示すよ
うに押圧する。That is, a header pipe material 18 is prepared, which is a flat plate having the upper and lower length dimensions of the header pipe 11 and the circumferential dimension of the peripheral side wall and is clad with a brazing material. This header pipe material 18 is placed on a die 21 of a press machine 20 having a semicircular groove 19 as shown in FIG. Press as shown in (b).
これにより、第５図に示すような曲面部２３を有する断
面Ｕ字状のヘッダーパイプ素材１８が形成される。As a result, a header pipe material 18 having a U-shaped cross section and a curved surface portion 23 as shown in FIG. 5 is formed.
このヘッダーパイプ素材１８の第１曲げ工程が終了した
ときは、第６図（ａ） （ｂ）に示す孔開は工程に移行
する。即ち、第６図（ａ）に示すように、Ｕ字状のヘッ
ダーパイプ素材１８をこのヘッダーパイプ素材１８の内
面に対応゛するよう形成されたプレス機２４のダイ２５
に載置するとともに、ヘッダーパイプ素材１８の外面を
ポンチガイド２６により保持する。また、ポンチホルダ
２７には孔開は用ポンチ２８が固定されている。この孔
開は用ポンチ２８の下端にはヘッダーパイプ素材１８の
曲面部２３の幅方向に切削する切削部２９を有している
。他方、ダイ２５にはポンチ挿入用の溝３０が設けられ
、この溝３０はヘッダーパイプ素材１８の曲面部２３を
間にして切削部２９と略相似形をなしている。When the first bending process of the header pipe material 18 is completed, the hole drilling process shown in FIGS. 6(a) and 6(b) is completed. That is, as shown in FIG. 6(a), a U-shaped header pipe material 18 is pressed into a die 25 of a press machine 24, which is formed so as to correspond to the inner surface of this header pipe material 18.
At the same time, the outer surface of the header pipe material 18 is held by a punch guide 26. Further, a hole punch 28 is fixed to the punch holder 27. The hole punch 28 has a cutting portion 29 at the lower end thereof which cuts the curved surface portion 23 of the header pipe material 18 in the width direction. On the other hand, the die 25 is provided with a groove 30 for inserting a punch, and this groove 30 has a substantially similar shape to the cutting part 29 with the curved part 23 of the header pipe material 18 in between.
ここで、第６図（ｂ）に示すように、上部ダイセット３
１を下方に移動させるときは、孔開は用ポンチ２８がポ
ンチガイド２６に沿って下降し、孔開は用ポンチ２８の
切削部２９がダイ２５の溝３０に挿入される。このとき
、この切削部２９により接続孔１７が設けられる。従っ
て、第７図に示すように、曲面部２３に接続孔１７を有
する断面Ｕ字状のヘッダーパイプ素材１８が製造される
。Here, as shown in FIG. 6(b), the upper die set 3
1, the punch 28 for punching the hole moves downward along the punch guide 26, and the cutting part 29 of the punch 28 for punching the hole is inserted into the groove 30 of the die 25. At this time, the connection hole 17 is provided by this cutting portion 29 . Therefore, as shown in FIG. 7, a header pipe material 18 having a U-shaped cross section and having a connection hole 17 in the curved surface portion 23 is manufactured.
このような孔開は工程が終了したときは、第８図に示す
仕切り板１４の挿入工程に移行する。即ち、ヘッダーパ
イプ素材１８の開口部３２側からヘッダーパイプ素材１
８内に仕切り板１４を挿入する。この仕切り板１４の半
径はヘッダーパイプ素材１８の曲面部２３の曲率半径よ
りも僅かに大きくなっており、仕切り板１４の周縁が接
続孔１７間のヘッダーパイプ素材１８の内面に圧接する
よう挿入される。これにより、仕切り板１４がヘッダー
パイプ素材１８内に仮止めされる。When this hole-drilling step is completed, the process moves to the step of inserting the partition plate 14 shown in FIG. 8. That is, the header pipe material 1 is removed from the opening 32 side of the header pipe material 18.
8. Insert the partition plate 14 into the inside. The radius of the partition plate 14 is slightly larger than the radius of curvature of the curved surface portion 23 of the header pipe material 18, and the partition plate 14 is inserted so that the peripheral edge of the partition plate 14 comes into pressure contact with the inner surface of the header pipe material 18 between the connection holes 17. Ru. As a result, the partition plate 14 is temporarily fixed within the header pipe material 18.
この挿入工程が終了したときは、第９図（ａ） （ｂ）
に示す第２曲げ工程に移行する。この第２曲げ工程にお
いては、第９図（ａ） （ｂ）に示すプレス機３３を使
用する。即ち、上型３４の下面中央にヘッダパイプ１１
の外面に対応する溝３５を形成するとともに、下面同周
縁に斜め下方に延びる傾斜部３６を形成している。他方
、この上型３４に対向して一対の可動ダイ３７を有し、
各可動ダイ３７の対向する側の上面にはヘッダーパイプ
１１の外面に対応する切欠き部３８を有し、また、上面
の外側周縁には上型３４の傾斜部３６に対応して傾斜し
た案内部３つを有している。When this insertion process is completed, Figure 9 (a) (b)
The process moves on to the second bending step shown in FIG. In this second bending step, a press machine 33 shown in FIGS. 9(a) and 9(b) is used. That is, the header pipe 11 is placed in the center of the lower surface of the upper die 34.
A groove 35 corresponding to the outer surface is formed, and an inclined portion 36 extending obliquely downward is formed on the same peripheral edge of the lower surface. On the other hand, it has a pair of movable dies 37 facing this upper die 34,
The upper surface of each movable die 37 on the opposing side has a notch portion 38 corresponding to the outer surface of the header pipe 11, and the outer peripheral edge of the upper surface is provided with an inclined guide corresponding to the inclined portion 36 of the upper die 34. It has three parts.
このプレス機３３により曲げ加工を行うときは、まず、
挿入工程を終了したヘッダーパイプ素材１８の曲面部２
３を第９図（ａ）に示すように各ダイ３７の切欠き部３
８上に載置し、ヘッダーパイプ素材１８の開口部３２を
上方に向ける。その後、上型３４を上部ダイセット４０
により下降させる。When performing bending using this press machine 33, first,
Curved portion 2 of the header pipe material 18 that has completed the insertion process
3 in the notch 3 of each die 37 as shown in FIG. 9(a).
8, with the opening 32 of the header pipe material 18 facing upward. After that, the upper mold 34 is inserted into the upper die set 40.
lower it by
この上型３４の下降（実線白抜き矢印）途中で、第９図
（Ｃ）に示すように、上型３４の傾斜部３６が各可動ダ
イ３７の案内部３９に接し、この案内部３つを押圧する
。この押圧力により可動ダイ３７に横方向への移動力が
生じ、各可動ダイ３７が相互に対向する側に移動しく一
点鎖線白抜き矢印）、ヘッダーパイプ素材１８の曲面部
２３を保持する。他方、第９図（ｂ）に示すように、上
型３４はその溝３５によりヘッダーパイプ素材１８の開
口部３２側を半円形状に曲げ、この開口部３１側を仕切
り板１４の周縁に圧接させるとともに、開口端部４１を
当接させる。これにより、第１０図に示すように、接続
孔１７を有するとともに、ヘッダーパイプ素材１８内に
仕切り板１４が仮止めされた円筒状のヘッダーパイプ素
材１８が形成される。During the lowering of the upper die 34 (indicated by a solid white arrow), as shown in FIG. Press. This pressing force generates a force for moving the movable dies 37 in the lateral direction, and each movable die 37 moves to the side facing each other (dotted chain line outlined arrow), thereby holding the curved surface portion 23 of the header pipe material 18. On the other hand, as shown in FIG. 9(b), the upper mold 34 bends the opening 32 side of the header pipe material 18 into a semicircular shape by its groove 35, and presses this opening 31 side against the peripheral edge of the partition plate 14. At the same time, the opening end portion 41 is brought into contact with the opening end portion 41 . As a result, as shown in FIG. 10, a cylindrical header pipe material 18 having a connection hole 17 and in which a partition plate 14 is temporarily fixed is formed.
この第２曲げ工程が終了したときは、ヘッダーパイプ素
材１８の上下にそれぞれ蓋４２を取付けるとともに、各
パイプ１５．１６を連結し、−括ろう付けすることによ
りヘッダーパイプ１１が製造される。尚、この−括ろう
付けは、各ヘッダーパイプ１１の各接続孔１７に各熱交
換チューブ１２を挿入接続し、更に伝熱フィン１３を各
熱交換チューブ１２間に介装した後に行なうようにして
も良い。When this second bending process is completed, the header pipe 11 is manufactured by attaching the lids 42 to the upper and lower sides of the header pipe material 18, and connecting and brazing the pipes 15 and 16 together. Note that this bracket brazing is performed after each heat exchange tube 12 is inserted and connected to each connection hole 17 of each header pipe 11, and the heat transfer fins 13 are interposed between each heat exchange tube 12. Also good.
以上のように、本実施例に係るヘッダーパイプ１１の製
造方法において、ヘッダーパイプ素材１８の第１曲げ工
程、仕切り板１４の挿入工程、ヘッダーパイプ素材１８
の第２曲げ工程により、仕切り板１４がヘッダーパイプ
素材１８内に圧接して仮止めされる。As described above, in the method for manufacturing the header pipe 11 according to the present embodiment, the first bending step of the header pipe material 18, the step of inserting the partition plate 14, and the step of inserting the header pipe material 18.
Through the second bending step, the partition plate 14 is pressed into the header pipe material 18 and temporarily fixed.
また、孔開は工程で、ヘッダーパイプ素材１８の開口部
３２側に変形を生ずるおそれがあるが、第２曲げ工程で
この開口部３２側が曲げられ、この変形部分がこの第２
曲げ工程で矯正される。In addition, the opening 32 side of the header pipe material 18 may be deformed during the hole drilling process, but this opening 32 side is bent in the second bending process, and this deformed portion is
Straightened during the bending process.
更に、この第２曲げ工程はヘッダーパイプ素材１８の開
口部３２側を曲げるだけで、既に形成された接続孔１７
側を曲げるものではないから、接続孔１７に歪みが生ず
ることがない。Furthermore, in this second bending step, the opening 32 side of the header pipe material 18 is simply bent, and the connection hole 17 that has already been formed is
Since the side is not bent, no distortion occurs in the connection hole 17.
第１１図は仕切り板１４の他の挿入工程図を示したもの
である。即ち、ヘッダーパイプ素材１８の内面で仕切り
板１４の挿入される部分に仕切り板用の嵌合溝４３を設
けたものである。この挿入工程において、この嵌合溝４
３が仕切り板１４の位置決め機能を有し仕切り板１４を
適正な位置に仮止めできる。また、仕切り板１４がこの
嵌合溝４３に嵌合するため仕切り板１４の仮止めが確実
に行なわれる。FIG. 11 shows another process diagram for inserting the partition plate 14. That is, a fitting groove 43 for a partition plate is provided in a portion of the inner surface of the header pipe material 18 into which the partition plate 14 is inserted. In this insertion process, this fitting groove 4
3 has a positioning function for the partition plate 14 and can temporarily fix the partition plate 14 in an appropriate position. Further, since the partition plate 14 fits into the fitting groove 43, the temporary fixing of the partition plate 14 is reliably performed.
第１２図（ａ） （ｂ） （ｃ） （ｄ） （ｅ）は仕
切り板１４の変形例を示すものである。第１２図（ａ）
はその第１変形例を示すもので、仕切り板１４ａは円柱
状とし、その周側面の幅を大きくしたものである。これ
により、仕切り板１４ａとヘッダーパイプ素材１８の接
触面積が大きくなり、仕切り板１４ａの仮止めが確実に
行なわれる。12(a), (b), (c), (d), and (e) show modified examples of the partition plate 14. FIG. Figure 12(a)
1 shows a first modification thereof, in which the partition plate 14a has a cylindrical shape and the width of its circumferential side is increased. Thereby, the contact area between the partition plate 14a and the header pipe material 18 is increased, and the temporary fixation of the partition plate 14a is reliably performed.
第１２図（ｂ）は第２変形例を示すもので、仕切り板１
４ｂは円盤状の仕切り部１４ｂ°の周縁に前後に仕切り
案内筒１４ｂ”を延設したものである。この仕切り案内
筒１４ｂ”によりヘッダーパイプ素材１８への接触面積
が大きくなり、第１変形例と同様に仕切り板１４ｂの仮
止めが確実に行なわれる。FIG. 12(b) shows a second modification, in which the partition plate 1
4b is a disc-shaped partition portion 14b° with a partition guide tube 14b'' extending back and forth around the periphery.This partition guide tube 14b'' increases the contact area with the header pipe material 18, and the first modification example Similarly, the temporary fixing of the partition plate 14b is reliably performed.
第１２図（ｃ）は第３変形例を示すもので、仕切り板１
４ｃはその周縁を断面楕円形状に構成し、その周縁中央
に尖鋭部１４Ｃ′を形成したものである。この仕切り板
１４ｃをヘッダーパイプ素材１８に挿入する挿入工程や
このヘッダーパイプ素材１８を円筒状に曲げる第２曲げ
工程において、仕切り板１４ｃの尖鋭部１４Ｃ′がヘッ
ダーパイプ素材１８に食い込み、仕切り板１４ｃの仮止
めが確実に行なわれる。FIG. 12(c) shows a third modification, in which the partition plate 1
4c has a circumferential edge formed into an elliptical cross-section, and a sharp portion 14C' formed at the center of the circumferential edge. During the insertion step of inserting the partition plate 14c into the header pipe material 18 and the second bending step of bending the header pipe material 18 into a cylindrical shape, the sharp portion 14C' of the partition plate 14c bites into the header pipe material 18, and the partition plate 14c Temporary fixing is performed reliably.
第１２図（ｄ）は第４変形例を示すもので、仕切り板１
４ｄはその周縁を断面三角形状に構成したものである。FIG. 12(d) shows a fourth modification, in which the partition plate 1
4d has a peripheral edge having a triangular cross section.
これにより、仕切り板１４ｄの周縁中央に尖鋭部１４ｄ
°が形成され、第３変形例と同様に尖鋭部１４ｄ°かヘ
ッダーパイプ素材１８に食い込み、仕切り板１４ｄの仮
止めが確実に行なわれる。As a result, a sharp portion 14d is formed at the center of the periphery of the partition plate 14d.
.degree. is formed, and the sharp portion 14d.degree. bites into the header pipe material 18 as in the third modification, thereby reliably temporarily fixing the partition plate 14d.
第１２図（ｅ）は第５変形例を示すもので、仕切り板１
４ｅはその下端に突出部１４ｅ°を形成している。この
仕切り板１４ｅを挿入するときは、孔開は工程でヘッダ
ーパイプ素材１８に位置決め用孔４４を形成しておき、
第１３図に示すように、挿入工程で突出部１４ｅ′を位
置決め用孔４４に挿入する。この挿入工程において、こ
の位置決め用孔４４により仕切り板１４ｅの位置決めが
なされ、仕切り板１４を適正な位置に仮止めできる。FIG. 12(e) shows a fifth modification, in which the partition plate 1
4e has a protrusion 14e° formed at its lower end. When inserting this partition plate 14e, positioning holes 44 are formed in the header pipe material 18 in the hole drilling process.
As shown in FIG. 13, the protrusion 14e' is inserted into the positioning hole 44 in the insertion process. In this insertion process, the partition plate 14e is positioned by the positioning hole 44, and the partition plate 14 can be temporarily fixed at an appropriate position.
また、この位置決め用孔４４は位置決めに十分な大きさ
の孔であれば足り、ヘッダーパイプ素材１８を大きく開
口することを要しない。従って、ろう付は不良を生ずる
ことがなく、また、ヘッダーパイプ素材１８の強度が著
しく低下することもない。尚、この第５変形例において
、突出部１４ｅ′及び位置決め用孔４４を複数設けても
良く、これにより、仕切り板１４ｅの仮止め効果が向上
する。Further, the positioning hole 44 only needs to be a hole of a size sufficient for positioning, and the header pipe material 18 does not need to be opened wide. Therefore, brazing does not cause defects, and the strength of the header pipe material 18 does not decrease significantly. In this fifth modification, a plurality of protrusions 14e' and positioning holes 44 may be provided, thereby improving the temporary fixing effect of the partition plate 14e.
（発明の効果）
以上説明したように、本発明によれば、第１曲げ工程に
より断面Ｕ字状のヘッダーパイプ素材が形成され、この
ヘッダーパイプ素材に仕切り板を挿入し、更にこのヘッ
ダーパイプ素材の開口部側を内側に曲げることにより仕
切り板がヘッダーパイプ素材内に仮止めされるため、従
来の如く仕切り板棒入用の大きな挿入孔を設けることを
要しない。従って、この開口面積の大きな挿入孔の穿設
に伴なうヘッダーパイプ素材の変形、更にはろう付は不
良を防止することができるという利点を有する。(Effects of the Invention) As described above, according to the present invention, a header pipe material having a U-shaped cross section is formed in the first bending step, a partition plate is inserted into this header pipe material, and the header pipe material is further Since the partition plate is temporarily fixed within the header pipe material by bending the opening side of the partition plate inward, it is not necessary to provide a large insertion hole for inserting the partition plate rod as in the conventional case. Therefore, there is an advantage in that it is possible to prevent deformation of the header pipe material due to the drilling of the insertion hole with a large opening area, and also to prevent defects in brazing.
第１図、第３図乃至第１３図は本発明の−実施例を示す
もので、第１図は熱交換器の全体斜視図、第２図は従来
のヘッダーパイプの製造方法を示す斜視図、第３図はヘ
ッダーパイプと熱交換チューブ及び仕切り板との装着状
態を示す断面図、第４図（ａ） （ｂ）は第１曲げ工程
を示す正面図、第５図は第１曲げ工程後のヘッダーパイ
プ素材を示す斜視図、第６図（ａ） （ｂ）は孔開は工
程を示す断面図、第７図は孔開は工程後のヘッダーパイ
プ素材を示す斜視図、第８図は仕切り板の挿入工程を示
す斜視図、第９図（ａ） （ｂ）は第２曲げ工程を示す
正面図、第９図（ｃ）は上型と可動ダイの移動状態を示
す説明図、第１０図は第２曲げ工程後のヘッダーパイプ
素材を示す斜視図、第１１図は仕切り板の他の挿入工程
を示す斜視図、第１２図（ａ） （ｂ） （ｃ） （ｄ
）（ｅ）は仕切り板の変形例を示す斜視図、第１３図は
第５変形例に係る仕切り板の挿入状態を示す断面図であ
る。
図中、１０・・・熱交換器、１１・・・ヘッダーパイプ
、１４．１４ａ、１４ｂ、１４ｃ、１４ｄ、１４ｅ・・
・仕切り板、１８・・・ヘッダーパイプ素材、２３・・
・曲面部、
３２・・・開口部、1, 3 to 13 show embodiments of the present invention, FIG. 1 is an overall perspective view of a heat exchanger, and FIG. 2 is a perspective view showing a conventional method for manufacturing a header pipe. , Fig. 3 is a sectional view showing the attachment state of the header pipe, heat exchange tube, and partition plate, Fig. 4 (a) and (b) are front views showing the first bending process, and Fig. 5 is the first bending process. Figures 6(a) and 6(b) are sectional views showing the header pipe material after the hole opening process; Figure 7 is a perspective view showing the header pipe material after the hole opening process; Figure 8 9(a) and 9(b) are front views showing the second bending step, FIG. 9(c) is an explanatory view showing the moving state of the upper die and the movable die, Figure 10 is a perspective view showing the header pipe material after the second bending process, Figure 11 is a perspective view showing another partition plate insertion process, and Figures 12 (a) (b) (c) (d
)(e) is a perspective view showing a modification of the partition plate, and FIG. 13 is a sectional view showing an inserted state of the partition plate according to the fifth modification. In the figure, 10... Heat exchanger, 11... Header pipe, 14.14a, 14b, 14c, 14d, 14e...
・Partition plate, 18...Header pipe material, 23...
・Curved surface part, 32...opening part,
Claims (1)
、該ヘッダーバイブ素材内に熱媒体案内用の仕切り板を
挿入し、該仕切り板を該ヘッダーパイプ素材にろう付け
する熱交換器用ヘッダーパイプの製造方法において、 平板状のヘッダーパイプ素材を断面略Ｕ字状に曲げる第
１曲げ工程と、該第１曲げ工程の後に該ヘッダーパイプ
素材の曲面部の内面に該内面に沿って周縁が圧接し得る
前記仕切り板をヘッダーパイプ素材の開口部側から挿入
する挿入工程と、該挿入工程の後に該ヘッダーパイプ素
材の開口部側を内側に曲げ開口端部を当接させるととも
に、該開口部側を該仕切り板の周縁に圧接させる第２曲
げ工程とを有することを特徴とする熱交換器用ヘッダー
パイプの製造方法。[Claims] A heat exchange method in which a flat header pipe material is bent into a cylindrical shape, a partition plate for guiding a heat medium is inserted into the header vibe material, and the partition plate is brazed to the header pipe material. In the method for manufacturing a dexterous header pipe, there is a first bending step of bending a flat header pipe material into a substantially U-shaped cross section, and after the first bending step, the inner surface of the curved portion of the header pipe material is bent along the inner surface. an insertion step of inserting the partition plate whose periphery can be press-contacted from the opening side of the header pipe material, and after the insertion step, bending the opening side of the header pipe material inward and bringing the opening end into contact with the header pipe material; A method for manufacturing a header pipe for a heat exchanger, comprising a second bending step of bringing the opening side into pressure contact with the peripheral edge of the partition plate.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2038428A JP2767644B2 (en) | 1990-02-21 | 1990-02-21 | Method of manufacturing header pipe for heat exchanger |
| US07/656,800 US5119552A (en) | 1990-02-16 | 1991-02-19 | Method for manufacturing header pipe of heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2038428A JP2767644B2 (en) | 1990-02-21 | 1990-02-21 | Method of manufacturing header pipe for heat exchanger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03243233A true JPH03243233A (en) | 1991-10-30 |
| JP2767644B2 JP2767644B2 (en) | 1998-06-18 |
Family
ID=12525042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2038428A Expired - Fee Related JP2767644B2 (en) | 1990-02-16 | 1990-02-21 | Method of manufacturing header pipe for heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2767644B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09303988A (en) * | 1996-05-07 | 1997-11-28 | Zexel Corp | Manufacture of header tank |
| KR20030087347A (en) * | 2002-05-08 | 2003-11-14 | (주) 광호기공 | The manufacturing process and device of header pipe |
-
1990
- 1990-02-21 JP JP2038428A patent/JP2767644B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09303988A (en) * | 1996-05-07 | 1997-11-28 | Zexel Corp | Manufacture of header tank |
| KR20030087347A (en) * | 2002-05-08 | 2003-11-14 | (주) 광호기공 | The manufacturing process and device of header pipe |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2767644B2 (en) | 1998-06-18 |
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