JPH0734948B2 - Pipe for refrigerant condenser - Google Patents
Pipe for refrigerant condenserInfo
- Publication number
- JPH0734948B2 JPH0734948B2 JP4056537A JP5653792A JPH0734948B2 JP H0734948 B2 JPH0734948 B2 JP H0734948B2 JP 4056537 A JP4056537 A JP 4056537A JP 5653792 A JP5653792 A JP 5653792A JP H0734948 B2 JPH0734948 B2 JP H0734948B2
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- tube
- insertion hole
- refrigerant
- refrigerant condenser
- 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 - Fee Related
Links
Landscapes
- Details Of Heat-Exchange And Heat-Transfer (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は自動車などのエアコンに
使用される冷媒凝縮器のパイプに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerant condenser pipe used in an air conditioner for an automobile or the like.
【０００２】[0002]
【従来の技術】エアコンの冷媒凝縮器は図５、図６に示
すように、冷媒ａが左側のパイプ１から扁平管状のチュ
−ブ３内を通して右側のパイプ１に流れ、同パイプ１か
らチュ−ブ３を通して左側のパイプ１に折返して流れ、
この間に同冷媒ａに圧力をかけて強制的に放熱させて、
同冷媒ａを低温高圧の冷却液にするものである。このと
き放出される熱はチュ−ブ３に伝達され、同チュ−ブ３
間に設けられたコルゲ−トフィン１１に伝達され、同コ
ルゲ−トフィン１１に送られた風により外部に放散され
るようにしてある。2. Description of the Related Art In a refrigerant condenser of an air conditioner, a refrigerant a flows from a pipe 1 on the left side through a tube 3 having a flat tubular shape to a pipe 1 on the right side as shown in FIGS. -Turn back through pipe 3 to pipe 1 on the left,
During this period, pressure is applied to the refrigerant a to forcibly dissipate heat,
The refrigerant a is used as a low-temperature high-pressure cooling liquid. The heat released at this time is transferred to the tube 3 and the tube 3
The wind is transmitted to the corrugated fins 11 provided therebetween and is radiated to the outside by the wind sent to the corrugated fins 11.
【０００３】図５、図６の左右のパイプ１は同じ構造の
ものであり、いずれも図６に示すように仕切材５により
長手方向に適宜間隔で仕切られて、図６の左側のパイプ
１から送り出された冷媒ａは上三段のチュ−ブ３に供給
され、チュ−ブ３から右側のパイプ１に送り出された冷
媒ａは同パイプ２内の仕切材２により下方への流れが阻
止されて、仕切材２より上の三段のチュ−ブ３に流れ込
み、それらのチュ−ブ３からパイプ１に送り戻された冷
媒ａは更にそれより下三段のチュ−ブ３に送られて、多
数本のチュ−ブ３内を通って左右のパイプ１間を流れる
ようにしてある。The left and right pipes 1 in FIG. 5 and FIG. 6 have the same structure, and are both partitioned by a partition member 5 in the longitudinal direction at appropriate intervals as shown in FIG. The refrigerant a sent from the pipe 3 is supplied to the upper three tubes 3, and the refrigerant a sent from the tube 3 to the right pipe 1 is prevented from flowing downward by the partition member 2 in the pipe 2. Then, the refrigerant a which flows into the three tubes 3 above the partition material 2 and is sent back from the tubes 3 to the pipe 1 is further sent to the tubes 3 below the three tubes. So as to flow between the left and right pipes 1 through a large number of tubes 3.
【０００４】このパイプ１は丸パイプ状のものもある
が、通常は図７のような二本の半割り状パイプ１３ａ、
１３ｂを組合わせて丸パイプにしてある。この半割り状
パイプ１３ａ、１３ｂうち一方の半割り状パイプ１３ａ
には図７のようにチュ−ブ差込み孔４と仕切材差込み孔
１５とがプレス加工により形成され、他方の半割り状パ
イプ１３ｂにも仕切材差込み孔１６が形成されている。The pipe 1 may be in the form of a round pipe, but normally two half-split pipes 13a as shown in FIG.
13b is combined to form a round pipe. One of the half-split pipes 13a and 13b
7, a tube insertion hole 4 and a partition material insertion hole 15 are formed by pressing, and a partition material insertion hole 16 is also formed in the other half-split pipe 13b.
【０００５】そして、前記チュ−ブ差込み孔４に図８の
ようにチュ−ブ３を差込んだ後、パイプ１と、それに差
込まれたチュ−ブ３及び仕切材２を加熱して、それらの
表面に設けられているクラッド材を溶融すると共にチュ
−ブ３をチュ−ブ差込み孔４の周囲に、コルゲ−トフィ
ン１１をチュ−ブ３とパイプ１とにロ−付けして、チュ
−ブ差込み孔４から冷媒が漏れないようにしてある。After inserting the tube 3 into the tube insertion hole 4 as shown in FIG. 8, the pipe 1, the tube 3 and the partition member 2 inserted therein are heated, The tube 3 is fused around the tube insertion hole 4 and the corrugated fins 11 are attached to the tube 3 and the pipe 1 by melting the clad material provided on the surfaces of the tube 3 and the tube 3, respectively. The refrigerant is prevented from leaking through the insertion hole 4.
【０００６】[0006]
【発明が解決しようとする課題】前記したチュ−ブ差込
み孔４は図９に示すようにダイス３０の上にセットした
パイプ１を加圧器２１でプレスして打ち抜くため、次の
ような問題があった。 図９（ｂ）のように打ち抜き屑（スクラップ）２２
が発生し、それが廃材となって無駄になり、その掃除に
手間もかかる。 打ち抜くだけであるため差込み孔４にチュ−ブ３を
差込みにくい。 打ち抜き時に図９（ｃ）に示すようにパイプ１の板
材が肉厚方向下部で千切れるため、同パイプ１の表面に
塗布されているクラッド材２３も千切れてしまう。この
ためチュ−ブ差込み孔４にチュ−ブ３を差込んでからパ
イプ１、チュ−ブ３、仕切材２を加熱してクラッド材を
溶融すると共に、同チュ−ブ３をチュ−ブ差込み孔４の
周囲にロ−付けする場合に、クラッド材２３が少なくロ
ー付けが不充分になる。The tube insertion hole 4 described above has the following problems because the pipe 1 set on the die 30 is pressed by the pressurizer 21 and punched as shown in FIG. there were. As shown in FIG. 9B, punching scrap (scrap) 22
Occurs, which becomes waste material and is wasted, and cleaning it takes time. It is difficult to insert the tube 3 into the insertion hole 4 because it is only punched. At the time of punching, as shown in FIG. 9C, the plate material of the pipe 1 is torn at the lower portion in the wall thickness direction, and the clad material 23 applied to the surface of the pipe 1 is also torn. Therefore, after inserting the tube 3 into the tube insertion hole 4, the pipe 1, the tube 3, and the partition member 2 are heated to melt the clad material, and the tube 3 is inserted into the tube. In the case of brazing around the hole 4, the amount of the clad material 23 is small and brazing becomes insufficient.
【０００７】本発明の目的はチュ−ブ差込み孔の成形時
にスクラップが発生せず、チュ−ブ差込み孔内にチュ−
ブが差込み易く、チュ−ブ差込み孔の周囲にロ−付け面
積が十分広くとれ、チュ−ブ差込み孔にチュ−ブをロ−
付けにより確実に固定できるようにした冷媒凝縮器用パ
イプを提供することにある。It is an object of the present invention that scrap is not generated at the time of forming the tube insertion hole and the tube is inserted into the tube insertion hole.
The tube is easy to insert, and the loading area is wide enough around the tube insertion hole, so that the tube can be inserted into the tube insertion hole.
It is to provide a pipe for a refrigerant condenser that can be securely fixed by attaching.
【０００８】[0008]
【課題を解決するための手段】本発明の冷媒凝縮器用パ
イプは二本のパイプ１（図５）の夫々に形成された多数
のチューブ差込み孔４にチュ−ブ３が差込まれ、いずれ
か一方のパイプから他方のパイプにチュ−ブ３内を通し
て冷媒が流れ、同冷媒が夫々のパイプ１内に設けられた
仕切材２により各パイプ１の長手方向への流れが途中で
阻止されて、チュ−ブ３を通して両パイプ１間を蛇行し
て流れるようにした冷媒凝縮器用パイプにおいて、同パ
イプ１を図１のように先端部５が先鋭な加圧具６で加圧
して同パイプ１に切込み７を入れながら押込んで、同切
込み７を押し広げると共にその切込み７の両側のガイド
部８、９を同図（ｃ）〜図４のようにパイプ１の内側に
押し出して、同切込み７をチュ−ブ差込み孔４としたも
のである。In the refrigerant condenser pipe of the present invention, a tube 3 is inserted into a large number of tube insertion holes 4 formed in each of two pipes 1 (FIG. 5). Refrigerant flows from the one pipe to the other pipe through the tube 3, and the refrigerant is blocked by the partition member 2 provided in each pipe 1 in the longitudinal direction of each pipe 1, In a pipe for a refrigerant condenser, which is arranged so as to meander between the pipes 1 through a tube 3, the pipe 1 is pressed by a pressurizing tool 6 having a sharp tip 5 as shown in FIG. While pushing in the notch 7, the notch 7 is expanded and the guide portions 8 and 9 on both sides of the notch 7 are pushed out to the inside of the pipe 1 as shown in FIGS. This is the tube insertion hole 4.
【０００９】[0009]
【作用】本発明の冷媒凝縮器用パイプは、打ち抜きによ
りチューブ差込み孔４を形成するのではなく、同パイプ
１に加圧具６で切込み７を入れながら同加圧具６を押込
んで切込み７を押し広げて、同切込み７をチュ−ブ差込
み孔４とするのでチュ−ブ差込み孔４を形成するときに
スクラップが出ない。The refrigerant condenser pipe of the present invention does not form the tube insertion hole 4 by punching, but presses the pressurizing tool 6 while making the notch 7 in the pipe 1 while pressing the pressurizing tool 6. Since the cut 7 is expanded to form the tube insertion hole 4, scrap is not generated when the tube insertion hole 4 is formed.
【００１０】しかもパイプ１の切込み７の両側のガイド
部８、９を押込んで内側に押し出すので、その押し出さ
れたガイド部８、９がチューブ３の差込み時に図３のよ
うにガイドとなり、チューブ３を差込み易くなる。Moreover, since the guide portions 8 and 9 on both sides of the notch 7 of the pipe 1 are pushed and pushed inward, the pushed guide portions 8 and 9 serve as guides when the tube 3 is inserted, as shown in FIG. It becomes easy to insert.
【００１１】さらに、パイプ１の内側に押し出されるガ
イド部８、９とチューブ差込み孔４に差込まれたチュー
ブ３（図３）との接触面積が広くなり、しかも図２のよ
うにパイプ１のクラッド材２３も内側まで押し出されて
ガイド部８、９の表面にクラッド材２３が露出している
ので、クラッド材２３が溶融してロ−付けが確実にな
り、ロ−付け部分から冷媒が漏れる虞れがない。Further, the contact area between the guide portions 8 and 9 pushed out inside the pipe 1 and the tube 3 (FIG. 3) inserted into the tube insertion hole 4 becomes wider, and moreover, as shown in FIG. Since the clad material 23 is also extruded to the inside and the clad material 23 is exposed on the surfaces of the guide portions 8 and 9, the clad material 23 is melted to secure the bonding, and the refrigerant leaks from the bonding part. There is no fear.
【００１２】[0012]
【実施例】図３、図４に示すものは本発明の冷媒凝縮器
用パイプの一実施例である。この冷媒凝縮器用パイプ１
には一本の丸パイプとか、二本の半割状のパイプを組合
せて円形のパイプにするもの等が使用される。3 and 4 show an embodiment of the refrigerant condenser pipe of the present invention. This refrigerant condenser pipe 1
For this, a single round pipe or a combination of two half-split pipes into a circular pipe is used.
【００１３】冷媒凝縮器用パイプ１には扁平パイプ状の
チュ−ブ３を差込む横長のチュ−ブ差込み孔４が形成さ
れている。このチュ−ブ差込み孔４は図１に示すよう
に、ダイス３０の上にセットしたパイプ１を、先端部５
が先鋭な加圧具６により図１（ｃ）のように加圧して同
パイプ１に切込み７を入れながら押込んで、次第に肉厚
になる加圧具６により同切込み７を押し広げると共にそ
の切込み７の両側のガイド部８、９を図１（ｃ）〜図４
のようにパイプ１の内側に押し出して、その切込み７を
チュ−ブ差込み孔４としてある。The refrigerant condenser pipe 1 is formed with a horizontally long tube insertion hole 4 into which a flat pipe-shaped tube 3 is inserted. As shown in FIG. 1, the tube insertion hole 4 has a pipe 1 set on a die 30 and a tip 5
Is pressed by a sharp pressing tool 6 as shown in FIG. 1 (c) and pushed while making a cut 7 in the pipe 1, and the pressing tool 6 having a gradually increasing thickness spreads the cut 7 and cuts the same. The guide portions 8 and 9 on both sides of 7 are shown in FIGS.
As described above, the pipe 7 is extruded to the inside, and the cut 7 is formed as the tube insertion hole 4.
【００１４】前記加圧具６は先端部５をパイプ１の径に
合わせて湾曲させると共に先端を次第に肉薄にしてパイ
プ１に食い込み易くし、また、パイプ１に押込むことに
より加圧具６の肉厚部で切込み７が次第に押し広げら
れ、更に切込み７のガイド部８、９がパイプ１の内側に
押し出されるようにしてある。The pressurizing tool 6 has a tip portion 5 which is curved according to the diameter of the pipe 1, and the tip end is gradually thinned so that the tip can be easily bited into the pipe 1. The notch 7 is gradually expanded at the thick portion, and the guide portions 8 and 9 of the notch 7 are pushed out to the inside of the pipe 1.
【００１５】図１に示した加圧具６は一つのチュ−ブ差
込み孔４を形成する場合の説明用であるため１個だけ表
示してあるが、チュ−ブ差込み孔４は実際は図４のよう
に一本のパイプ１に一定間隔で多数形成されるため、そ
の数に合わせて加圧具６も多数連設される。Only one pressurizing tool 6 shown in FIG. 1 is shown for the purpose of explaining the case of forming one tube insertion hole 4, but the tube insertion hole 4 is actually shown in FIG. As described above, since many pipes 1 are formed at regular intervals, a large number of pressurizing tools 6 are arranged in a row in accordance with the number.
【００１６】[0016]
【発明の効果】本発明の冷媒凝縮器用パイプは以下のよ
うな効果がある。 チュ−ブ差込み孔４の形成時にスクラップが出ない
ので材料が無駄にならず、また、スクラップを掃除する
面倒も無い。 切込み７の両側のガイド部８、９がチューブ３の差
込み時にガイドとなるので、チューブ３を差込み易い。 ガイド部８、９とチューブ差込み孔４に差込まれた
チューブ３との接触面積が広くなるのでロ−付けが確実
になる。 パイプ１のクラッド材２３がガイド部８、９と共に
内側まで押し出されてガイド部８、９の表面に露出して
いるので、クラッド材２３が溶融してロ−付けが確実に
なる。The refrigerant condenser pipe of the present invention has the following effects. Since no scrap is produced when the tube insertion hole 4 is formed, the material is not wasted, and there is no trouble of cleaning the scrap. Since the guide portions 8 and 9 on both sides of the cut 7 serve as guides when inserting the tube 3, it is easy to insert the tube 3. Since the contact area between the guide portions 8 and 9 and the tube 3 inserted into the tube insertion hole 4 is widened, the attachment can be ensured. Since the clad material 23 of the pipe 1 is extruded to the inner side together with the guide portions 8 and 9 and exposed on the surfaces of the guide portions 8 and 9, the clad material 23 is melted and the bonding is surely performed.
【図１】（ａ）は本発明の冷媒凝縮器用パイプのチュー
ブ差込み孔成形用加圧具の一例を示す斜視図、（ｂ）及
び（ｃ）はチューブ差込み孔成形用時の説明図。FIG. 1A is a perspective view showing an example of a pressurizing tool for forming a tube insertion hole of a pipe for a refrigerant condenser of the present invention, and FIGS. 1B and 1C are explanatory views for forming the tube insertion hole.
【図２】本発明におけるチューブ差込み孔の詳細説明
図。FIG. 2 is a detailed explanatory view of a tube insertion hole according to the present invention.
【図３】本発明の冷媒凝縮器用パイプにチューブを差込
んだ状態の縦断面図。FIG. 3 is a vertical cross-sectional view showing a state in which a tube is inserted in the refrigerant condenser pipe of the present invention.
【図４】本発明の冷媒凝縮器用パイプを構成する半割パ
イプの一例を示す斜視図。FIG. 4 is a perspective view showing an example of a half pipe constituting the refrigerant condenser pipe of the present invention.
【図５】従来の冷媒凝縮器の分解説明図、FIG. 5 is an exploded view of a conventional refrigerant condenser,
【図６】従来の冷媒凝縮器の冷媒の流れの説明図、FIG. 6 is an explanatory view of the flow of the refrigerant in the conventional refrigerant condenser,
【図７】従来の冷媒凝縮器用パイプの一例を示す分解
図。FIG. 7 is an exploded view showing an example of a conventional refrigerant condenser pipe.
【図８】従来の冷媒凝縮器用パイプにチューブを差込ん
だ状態の縦断面図。FIG. 8 is a vertical cross-sectional view of a tube inserted into a conventional refrigerant condenser pipe.
【図９】（ａ）（ｂ）（ｃ）は従来の冷媒凝縮器用パイ
プのチューブ差込み孔の成形説明図。9A, 9B, and 9C are explanatory views of forming tube insertion holes of a conventional refrigerant condenser pipe.
１ パイプ ２ 仕切材 ３ チュ−ブ ４ チューブ差込み孔 ５ 先端部 ６ 加圧具 ７ 切込み ８、９ ガイド部 ａ 冷媒 DESCRIPTION OF SYMBOLS 1 Pipe 2 Partition material 3 Tube 4 Tube insertion hole 5 Tip part 6 Pressurizing tool 7 Incision 8, 9 Guide part a Refrigerant
Claims (1)
のチューブ差込み孔４にチュ−ブ３が差込まれ、いずれ
か一方のパイプから他方のパイプにチュ−ブ３内を通し
て冷媒ａが流れ、同冷媒ａが夫々のパイプ１内に設けら
れた仕切材２により各パイプ１の長手方向への流れが途
中で阻止されて、チュ−ブ３を通して両パイプ１間を蛇
行して流れるようにした冷媒凝縮器用パイプにおいて、
同パイプ１を先端部５が先鋭な加圧具６で加圧して同パ
イプ１に切込み７を入れながら押込んで、同切込み７を
押し広げると共に同切込み７の両側のガイド部８、９を
パイプ１の内側に押し出して、同切込み７をチュ−ブ差
込み孔４としたことを特徴とする冷媒凝縮器用パイプ。1. A tube 3 is inserted into a large number of tube insertion holes 4 formed in each of two pipes 1, and a refrigerant a is passed from one pipe to the other pipe through the tube 3. The flow of the refrigerant a is blocked by a partition member 2 provided in each pipe 1 in the longitudinal direction of each pipe 1, and meanders between the pipes 1 through a tube 3. In the refrigerant condenser pipe thus configured,
The pipe 1 is pressed by a pressurizing tool 6 having a sharp tip 5 and is pushed while making a notch 7 in the pipe 1, the notch 7 is widened and the guide portions 8 and 9 on both sides of the notch 7 are piped. A pipe for a refrigerant condenser, which is extruded to the inside of 1 and has the same cut 7 as a tube insertion hole 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4056537A JPH0734948B2 (en) | 1992-02-10 | 1992-02-10 | Pipe for refrigerant condenser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4056537A JPH0734948B2 (en) | 1992-02-10 | 1992-02-10 | Pipe for refrigerant condenser |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05212480A JPH05212480A (en) | 1993-08-24 |
| JPH0734948B2 true JPH0734948B2 (en) | 1995-04-19 |
Family
ID=13029839
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4056537A Expired - Fee Related JPH0734948B2 (en) | 1992-02-10 | 1992-02-10 | Pipe for refrigerant condenser |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0734948B2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4980652A (en) * | 1972-08-02 | 1974-08-03 | ||
| JPH03264139A (en) * | 1989-12-25 | 1991-11-25 | Chiyuuritsu Seisakusho:Kk | Production of heat exchanger |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3115363U (en) * | 2005-08-02 | 2005-11-04 | ミツ子 菅 | Ear scratching |
-
1992
- 1992-02-10 JP JP4056537A patent/JPH0734948B2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4980652A (en) * | 1972-08-02 | 1974-08-03 | ||
| JPH03264139A (en) * | 1989-12-25 | 1991-11-25 | Chiyuuritsu Seisakusho:Kk | Production of heat exchanger |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH05212480A (en) | 1993-08-24 |
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