JPH0710469B2 - Flat multi-hole pipe header processing method - Google Patents
Flat multi-hole pipe header processing methodInfo
- Publication number
- JPH0710469B2 JPH0710469B2 JP1034688A JP1034688A JPH0710469B2 JP H0710469 B2 JPH0710469 B2 JP H0710469B2 JP 1034688 A JP1034688 A JP 1034688A JP 1034688 A JP1034688 A JP 1034688A JP H0710469 B2 JPH0710469 B2 JP H0710469B2
- Authority
- JP
- Japan
- Prior art keywords
- hole
- flat multi
- pipe
- hole pipe
- header
- 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.)
- Expired - Lifetime
Links
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
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/02—Tubular elements of cross-section which is non-circular
- F28F1/022—Tubular elements of cross-section which is non-circular with multiple channels
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Geometry (AREA)
- Details Of Heat-Exchange And Heat-Transfer (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 この発明は扁平多穴管のヘッダ加工方法、特に自動車用
コンデンサー、エバポレータ等に用いられる熱交換器に
おけるチューブ材としての扁平多穴管の端部にヘッダを
加工する方法に関する。Description: INDUSTRIAL APPLICABILITY The present invention relates to a method for processing a header of a flat multi-hole pipe, and particularly to an end portion of the flat multi-hole pipe as a tube material in a heat exchanger used for a condenser for automobiles, an evaporator and the like. It relates to a method of processing a header.
従来の技術 従来、この種のチューブ材として扁平多穴管を用いた熱
交換器におけるヘッダとして、例えば特開昭60−187461
号に示されるように、前記多穴管の先端部に接続用短管
を取付けることにより構成されたものが知られている。
この扁平多穴管に対する接続用短管の取付けは、次のよ
うにして行なわれていた。2. Description of the Related Art Conventionally, as a header in a heat exchanger using a flat multi-hole tube as this type of tube material, for example, JP-A-60-187461.
As shown in No. 6, a multi-hole tube is known in which a connecting short tube is attached to the tip of the multi-hole tube.
The connecting short pipe was attached to the flat multi-hole pipe in the following manner.
即ち、予め所定の蛇行状に屈曲形成したチューブ材とし
ての扁平多穴管の先端に、スエージング加工を施し、該
先端にテーパ状の縮径挿入部を形成する。一方、接続用
短管として外面にろう材の被覆されたブレージング用の
電縫管を用い、その一端を蓋体等により閉塞して盲管と
なすと共に、周壁の一部に軸線方向に長い扁平多穴管挿
入孔を穿設し、該挿入孔に、多穴管の先端部を強制的に
挿入し、要すれば周りに隙間を生じないように金型を用
いてかしめることにより両者を密接状態に仮接合し、こ
れを加熱してブレージングろう付けを行うことにより両
者を強固に接合一体化していた。That is, the tip of a flat multi-hole tube, which is a tube material bent and formed in a predetermined meandering shape in advance, is swaged to form a tapered reduced diameter insertion portion. On the other hand, as a short pipe for connection, an electric resistance welded pipe with brazing material coated on the outer surface is used, one end of which is closed with a lid etc. to form a blind pipe, and a flat wall long in the axial direction is formed on a part of the peripheral wall. By forming a multi-hole pipe insertion hole, forcibly inserting the tip of the multi-hole pipe into the insertion hole, and if necessary, by caulking with a mold so as not to create a gap around them, Temporary joining was performed in a close state, and the brazing and brazing were performed by heating the two to firmly join and integrate them.
発明が解決しようとする問題点 しかしながら、このようなヘッダ形成方法では、上記の
ように工程数が多くて生産能率が悪く、ひいては製造コ
ストアップを招くという難があったばかりか、接続用短
管の上記挿入孔は、これを多穴管の先端部に対応した形
状および大きさに正確に穿設しなければ多穴管を仮接合
した状態においてそのまわりに隙間が生じ、ひいてはろ
う付け不良が生ずるおそれがあった。DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention However, in such a header forming method, there is a problem that the number of steps is large and the production efficiency is poor as described above, resulting in an increase in manufacturing cost. If the insertion hole is not accurately formed in a shape and size corresponding to the tip of the multi-hole pipe, a gap is formed around the multi-hole pipe in a temporarily joined state, which results in defective brazing. There was a fear.
また、多穴管と接続用短管との接合に際して、多穴管を
前記挿入孔に深く挿入し過ぎると、多穴管の冷媒通路孔
から接続用短管内への冷媒の流れが阻害されるため、組
立てがいささか厄介であるという難があった。Further, when joining the multi-hole pipe and the connecting short pipe, if the multi-hole pipe is too deeply inserted into the insertion hole, the flow of the refrigerant from the refrigerant passage hole of the multi-hole pipe into the connecting short pipe is obstructed. Therefore, there is a difficulty that the assembly is a little troublesome.
この発明は、上記のような問題点を解決することを目的
とし、特に従来のように別部材を用いることなく、しか
も工程数を少なくして製造コストの低減化を図ると共
に、冷媒の流れが阻害されたり、漏れが生ずることのな
いヘッダの加工方法を提供するようにしたものである。The present invention aims to solve the above-mentioned problems, particularly without using a separate member as in the prior art, and further, the number of steps is reduced to reduce the manufacturing cost, and the flow of the refrigerant is It is intended to provide a method for processing a header that is not hindered or leaked.
問題点を解決するための手段 而して、この発明は、接続用短管等の別部材を用いるこ
となく、扁平多穴管の端部自体に切削および膨管加工等
を施すことによりヘッダを形成せしめるようにしたもの
である。Means for Solving the Problems The present invention, therefore, does not use a separate member such as a short pipe for connection and the like, but does not use a separate member such as a short pipe for connection to cut the header itself by subjecting the end portion itself of the flat multi-hole pipe to cutting and inflation. It is designed to be formed.
即ち、この発明は、熱交換器用チューブ材として用いら
れる、内部に複数の冷媒通路孔（２）を有する扁平多穴
管（１）の端部（３）にヘッダ（Ｈ）を形成するに際
し、 前記多穴管（１）の端部（３）に、その端面側から所定
長さに亘る内部隔壁（４）を切断ないし切削除去するこ
とにより冷媒合流用中空部（５）を形成せしめた後、少
なくともその一部を拡開せしめて膨管部（６）（60）を
形成すると共に、上記端部（３）における開口縁部（3
a）を、少なくとも上記膨管部（６）（60）の一部を残
して圧潰閉塞せしめかつ接合することにより、一部に開
口部（７）（70）を有するヘッダ（Ｈ）を形成せしめる
ことを特徴とする、扁平多穴管のヘッダ加工方法を要旨
とするものである。That is, the present invention, when forming the header (H) at the end (3) of the flat multi-hole tube (1) used as a tube material for a heat exchanger and having a plurality of refrigerant passage holes (2) inside, After forming the refrigerant confluence hollow part (5) by cutting or cutting off the internal partition wall (4) over a predetermined length from the end face side to the end part (3) of the multi-hole pipe (1) , At least a part of which is expanded to form an expansion tube portion (6) (60), and an opening edge portion (3) at the end portion (3) is formed.
The header (H) having the openings (7) and (70) is formed in part by crushing and closing a) while leaving at least a part of the expansion tubes (6) and (60). The gist is a method for processing a header of a flat multi-hole pipe, which is characterized in that
実施例 以下、この発明を図示実施例に基づいて説明する。Embodiment Hereinafter, the present invention will be described based on illustrated embodiments.
第１図ないし第５図に示す実施例において、扁平多穴管
（１）として、第１図に示すように、外形が扁平であっ
て内部に複数の冷媒通路孔（２）を有するものを用い、
先ずその多穴管（１）の端部（３）に、第２図に示すよ
うに、その端面側から所定長さに亘る内部隔壁（４）を
切断ないしは切削除去することにより、冷媒合流用中空
部（５）を形成せしめる。In the embodiment shown in FIGS. 1 to 5, a flat multi-hole tube (1) having a flat outer shape and a plurality of refrigerant passage holes (2) inside, as shown in FIG. Used,
First, at the end portion (3) of the multi-hole pipe (1), as shown in FIG. 2, an internal partition wall (4) extending over a predetermined length from the end face side thereof is cut or cut to remove the inner wall (4) for merging the refrigerant. The hollow part (5) is formed.
そして、第３図に示すように、その中空部（５）の一側
部を拡開させることにより膨管部（６）を形成する。次
いで、第４図に示すように、上記端部（３）における開
口縁部（3a）を膨管部（６）側を除いて圧潰閉塞せし
め、かつ溶接等により接合一体化する。而して、一端が
閉塞され他端に開口部（７）を有するものとなされたヘ
ッダ（Ｈ）が形成される。図中、（８）溶接部である。Then, as shown in FIG. 3, the expansion tube portion (6) is formed by expanding one side portion of the hollow portion (5). Next, as shown in FIG. 4, the opening edge portion (3a) of the end portion (3) is crushed and closed except for the expansion tube portion (6) side, and joined and integrated by welding or the like. Thus, the header (H) having one end closed and the other end having the opening (7) is formed. In the figure, (8) is a welded portion.
このようにして形成されたヘッダ（Ｈ）の上記開口部
（７）には、配管用パイプ（Ｐ）等の接合部材が適宜溶
接固定されるものであり、その後もしくは予め前記扁平
多穴管（１）を所定の蛇行状に屈曲形成せしめて熱交換
器用チューブ材として使用されるものである。A joint member such as a pipe for pipe (P) is appropriately welded and fixed to the opening (7) of the header (H) thus formed, and thereafter or in advance the flat multi-hole pipe ( It is used as a tube material for a heat exchanger by bending 1) into a predetermined meandering shape.
而して、例えば上記扁平多穴管（１）の出口側において
は、各冷媒通路孔（２）中の冷媒は前記冷媒合流用中空
部（５）にて合流される。そして、ここで合流された冷
媒は前記膨管部（６）を経て配管パイプ（Ｐ）へ導かれ
るものである。Thus, for example, on the outlet side of the flat multi-hole tube (1), the refrigerant in each refrigerant passage hole (2) is merged in the refrigerant merge hollow portion (5). Then, the refrigerant merged here is guided to the piping pipe (P) through the expansion pipe portion (6).
第６図ないし第８図は、他の実施例を示すもので、前記
実施例と同様に、扁平多穴管（１）の端部（３）に、第
２図に示すように、その端面側から所定長さに亘る内部
隔壁（４）を切断ないしは切削除去ることにより、冷媒
合流用中空部（５）を形成せしめる。FIGS. 6 to 8 show another embodiment, and like the above embodiment, the end face (3) of the flat multi-hole tube (1) has its end face as shown in FIG. The internal partition wall (4) having a predetermined length from the side is cut or cut away to form the hollow portion (5) for refrigerant merging.
そして、第６図に示すように、その中空部（５）を拡開
させることにより、膨管部（60）を形成させる。この膨
管工程において膨管部（60）の一側壁部に切断ないしは
切削除去加工を施しておき、側部に開口部（70）を形成
しておく。次いで、上記端部（３）における開口縁部
（3a）を上記開口部（70）を除いて圧潰閉塞せしめ、か
つ溶接等により接合一体化する。而して、端部が閉塞さ
れ一側部に開口部（70）を有するものとなされたヘッダ
（Ｈ）が形成されるものである。Then, as shown in FIG. 6, the expansion tube portion (60) is formed by expanding the hollow portion (5). In this expansion tube step, one sidewall portion of the expansion tube portion (60) is cut or cut and removed, and an opening portion (70) is formed in the side portion. Next, the opening edge portion (3a) of the end portion (3) is crushed and closed except for the opening portion (70), and is joined and integrated by welding or the like. Thus, the header (H) having the end portion closed and the opening portion (70) on one side is formed.
このようにして形成されたヘッダ（Ｈ）の上記開口部
（70）には、配管パイプ（Ｐ）等の接合部材が適宜溶接
固定されるものであり、その後もしくは予め前記扁平多
穴管（１）を所定の蛇行状に屈曲形成せしめて熱交換器
用チューブ材として使用されるものである。A joint member such as a piping pipe (P) is appropriately welded and fixed to the opening (70) of the header (H) formed in this manner, and thereafter or in advance the flat multi-hole pipe (1). ) Is bent into a predetermined meandering shape and used as a tube material for a heat exchanger.
なお、扁平多穴管（１）の端部（３）における内部隔壁
（４）の切断ないしは切削加工は、必ずしも上記実施例
のようにその一部を残すような態様でしなければならな
いものではなく、完全に除去するようにしても良い。The cutting or cutting of the internal partition wall (4) at the end (3) of the flat multi-hole tube (1) does not necessarily have to be performed in such a manner as to leave a part thereof as in the above embodiment. Instead, it may be completely removed.
発明の効果 この発明に係る扁平多穴管のヘッダ加工方法は、上述の
とおり、扁平多穴管（１）の端部（３）に切断ないしは
切削加工および膨管加工を施した後、圧潰閉塞加工およ
び接合を施すことによりヘッダ（Ｈ）を形成するもので
なり、従来のように接続用短管等の別部材を用いること
なく、扁平多穴管（１）の周壁自体を用いてヘッダ
（Ｈ）を構成するものであるから、従来法と較べて使用
部品点数および工程数の減少を図ることができ、ひいて
は製造コストの低減化を図ることができる。EFFECTS OF THE INVENTION As described above, the header processing method for a flat multi-hole pipe according to the present invention is performed by cutting or cutting and inflating the end portion (3) of the flat multi-hole pipe (1), and then crushing and closing the pipe. The header (H) is formed by processing and joining, and the header (H) is formed by using the peripheral wall itself of the flat multi-hole pipe (1) without using a separate member such as a connecting short pipe as in the conventional case. H) is configured, it is possible to reduce the number of parts used and the number of steps as compared with the conventional method, and thus it is possible to reduce the manufacturing cost.
かつまた、ヘッダ（Ｈ）は扁平多穴管（１）の周壁によ
り構成されるものであるから、従来のように接続用短管
に穿設した挿入孔に扁平多穴管の端部を挿入し、両者を
ろう付け固定するものと較べて、冷媒が漏出するおそれ
がなく、しかも従来のように扁平多穴管を接続用短管内
に挿入し過ぎることにより冷媒の流れが阻害されるとい
うような不都合を回避しえ、従ってバラツキのない品質
的に良好な製品を容易に提供することができる。Moreover, since the header (H) is composed of the peripheral wall of the flat multi-hole pipe (1), the end of the flat multi-hole pipe is inserted into the insertion hole formed in the connecting short pipe as in the conventional case. However, compared to the case where both are fixed by brazing, there is no risk of leakage of the refrigerant, and moreover, the flow of the refrigerant is obstructed by inserting the flat multi-hole pipe too much into the connecting short pipe as in the past. It is possible to avoid such inconvenience, and thus easily provide a product of good quality with no variation.
図面はこの発明の実施例を示すものであり、第１図は加
工前における扁平多穴管の端部の斜視図、第２図は隔壁
切削除去加工を施した状態を示す一部切欠き斜視図、第
３図は膨管加工を施した状態を示す斜視図、第４図は圧
潰閉塞加工を施した状態を示す斜視図、第５図（Ａ）は
第４図Ａ−Ａ線の断面図、第５図（Ｂ）は第４図Ｂ−Ｂ
線の断面図、第５図（Ｃ）は第４図Ｃ−Ｃ線の断面図、
第６図ないし第８図は他の実施例を示すもので、第６図
は第３図に対応する斜視図、第７図は第４図に対応する
斜視図、第８図は配管パイプを接合した状態の断面図で
ある。 （１）……扁平多穴管、（２）……冷媒通路孔、（３）
……端部、（3a）……開口縁部、（４）……内部隔壁、
（５）……冷媒合流用中空部、（６）（60）……膨管
部、（７）（70）……開口部、（Ｈ）……ヘッダ。The drawings show an embodiment of the present invention. FIG. 1 is a perspective view of an end portion of a flat multi-hole pipe before processing, and FIG. 2 is a partially cutaway perspective view showing a state where partition wall cutting removal processing is performed. Fig. 3 is a perspective view showing a state in which a swelling process is performed, Fig. 4 is a perspective view in a state in which a crush closing process is performed, and Fig. 5 (A) is a cross section taken along line AA in Fig. 4. Fig. 5 (B) is Fig. 4B-B.
FIG. 5C is a sectional view taken along the line CC in FIG. 4,
6 to 8 show another embodiment. FIG. 6 is a perspective view corresponding to FIG. 3, FIG. 7 is a perspective view corresponding to FIG. 4, and FIG. It is sectional drawing of the joined state. (1) ... Flat multi-hole tube, (2) ... Refrigerant passage hole, (3)
…… Edge, (3a) …… Opening edge, (4) …… Internal partition,
(5) ... Refrigerant merging hollow part, (6) (60) ... Expansion tube part, (7) (70) ... Opening part, (H) ... Header.
Claims (1)
内部に複数の冷媒通路孔（２）を有する扁平多穴管
（１）の端部（３）にヘッダ（Ｈ）を形成するに際し、 前記多穴管（１）の端部（３）に、その端面側から所定
長さに亘る内部隔壁（４）を切断ないし切削除去するこ
とにより冷媒合流用中空部（５）を形成せしめた後、少
なくともその一部を拡開せしめて膨管部（６）（60）を
形成すると共に、上記端部（３）における開口縁部（3
a）を、少なくとも上記膨管部（６）（60）の一部を残
して圧潰閉塞せしめかつ接合することにより、一部に開
口部（７）（70）を有するヘッダ（Ｈ）を形成せしめる
ことを特徴とする、扁平多穴管のヘッダ加工方法。1. Used as a tube material for a heat exchanger,
When forming the header (H) at the end (3) of the flat multi-hole pipe (1) having a plurality of refrigerant passage holes (2) inside, at the end (3) of the multi-hole pipe (1), After the inner partition wall (4) having a predetermined length is cut or cut off from the end face side to form the hollow portion (5) for refrigerant merging, at least a part of the hollow portion is expanded to expand the expansion tube portion (6). ) (60) and the opening edge (3) at the end (3).
The header (H) having the openings (7) and (70) is formed in part by crushing and closing a) while leaving at least a part of the expansion tubes (6) and (60). A method for processing a header of a flat multi-hole pipe, which is characterized in that
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1034688A JPH0710469B2 (en) | 1988-01-19 | 1988-01-19 | Flat multi-hole pipe header processing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1034688A JPH0710469B2 (en) | 1988-01-19 | 1988-01-19 | Flat multi-hole pipe header processing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01188235A JPH01188235A (en) | 1989-07-27 |
| JPH0710469B2 true JPH0710469B2 (en) | 1995-02-08 |
Family
ID=11747627
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1034688A Expired - Lifetime JPH0710469B2 (en) | 1988-01-19 | 1988-01-19 | Flat multi-hole pipe header processing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0710469B2 (en) |
-
1988
- 1988-01-19 JP JP1034688A patent/JPH0710469B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01188235A (en) | 1989-07-27 |
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