JP2543965Y2 - Branch structure of heat exchanger - Google Patents
Branch structure of heat exchangerInfo
- Publication number
- JP2543965Y2 JP2543965Y2 JP1990059349U JP5934990U JP2543965Y2 JP 2543965 Y2 JP2543965 Y2 JP 2543965Y2 JP 1990059349 U JP1990059349 U JP 1990059349U JP 5934990 U JP5934990 U JP 5934990U JP 2543965 Y2 JP2543965 Y2 JP 2543965Y2
- Authority
- JP
- Japan
- Prior art keywords
- branch
- heat exchanger
- core
- branch pipe
- pipe
- 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
Landscapes
- Details Of Heat-Exchange And Heat-Transfer (AREA)
Description
【考案の詳細な説明】 〔産業上の利用分野〕 本考案は主として空調用エバポレータ等の熱交換器に
用いられる分岐部構造であって、主パイプから複数の分
岐パイプが突設され、夫々の分岐パイプ先端がコアチュ
ーブの開口端にろう付けにより接合されるものに関す
る。[Detailed description of the invention] [Industrial application field] The invention is a branch structure mainly used for a heat exchanger such as an air-conditioning evaporator, and a plurality of branch pipes are protruded from a main pipe. The present invention relates to one in which a branch pipe tip is joined to an open end of a core tube by brazing.
従来、エバポレータ用熱交換器に設けられる分岐部構
造は第６図及び第７図の如く形成されていた。即ち、熱
交換器コア５に主パイプ１及び分岐部２を介して複数の
分岐パイプを接続するには、次のようにしていた。Conventionally, a branch structure provided in an evaporator heat exchanger has been formed as shown in FIGS. That is, a plurality of branch pipes are connected to the heat exchanger core 5 via the main pipe 1 and the branch part 2 as follows.
先ず、第７図に示す如く主パイプ１の先端に分岐部２
を設け、その先端に同一の分岐パイプ3,4,8を突設す
る。夫々の分岐パイプの全長は同一であると共に、その
内外径が同一のものが用いられていた。そして、このよ
うな分岐パイプ3,4,8を熱交換器コア５のコアチューブ
6,7,9に夫々ろう付けにより接合していた。First, as shown in FIG.
And the same branch pipes 3, 4, and 8 are protruded from the end thereof. Each branch pipe had the same overall length and the same inner and outer diameters. Then, such branch pipes 3, 4, and 8 are connected to the core tube of the heat exchanger core 5.
They were joined to 6, 7, and 9, respectively, by brazing.
従来の分岐構造は、第６図に示す如く、その主パイプ
１及び分岐部２の配置位置が周辺の機器より制約を受
け、一定の狭い範囲に置かれる。すると、夫々の分岐パ
イプ3,4,8の長さが一定であるため、分岐部２に対して
最も遠いコアチューブ６の開口端に接続される分岐パイ
プ３はその曲がり部が少ない形状になり、最も短い距離
にあるコアチューブ９に接続される分岐パイプ８は異常
に変形して配置せざるを得ない。それにより、分岐パイ
プの曲げ形状の一部が複雑となり、体裁を悪くする欠点
があった。従来、第７図に示す如く分岐パイプ3,4,8の
長さを夫々同一とする理由は、夫々の分岐パイプ内部に
均一に冷媒を流通させる必要があるからである。In the conventional branch structure, as shown in FIG. 6, the arrangement positions of the main pipe 1 and the branch portion 2 are restricted by peripheral devices and are placed in a certain narrow range. Then, since the length of each of the branch pipes 3, 4, and 8 is constant, the branch pipe 3 connected to the open end of the core tube 6 farthest from the branch section 2 has a shape with a small bent portion. The branch pipe 8 connected to the core tube 9 located at the shortest distance must be abnormally deformed and arranged. As a result, a part of the bent shape of the branch pipe becomes complicated, and there is a disadvantage that the appearance is deteriorated. Conventionally, the reason why the lengths of the branch pipes 3, 4, 8 are the same as shown in FIG. 7 is that it is necessary to uniformly distribute the refrigerant inside the respective branch pipes.
そこで、本考案は体裁が良く、且つ無駄の無い熱交換
器の分岐部構造を提供することを目的とし、その目的達
成のために次の構造をとる。In view of the above, the present invention has an object to provide a heat exchanger branch structure having a good appearance and no waste, and the following structure is employed to achieve the object.
本考案の分岐部構造は一本の主パイプ１の先端に分岐
部２を介して複数本の分岐パイプ3,4の一端が夫々接続
される。そして、その分岐パイプ3,4の他端が夫々熱交
換器コア５の同一長さ及び同一直径の各コアチューブ6,
7の開口端に接続される。そして、夫々のコアチューブ
6,7の開口端と前記分岐部の直線距離が互いに異なもの
に関する。ここにおいて、本考案の特徴とするところ
は、前記直線距離が短い位置に配置される分岐パイプ４
の長さを、直線距離が長い位置に配置される分岐パイプ
３より短くする。それと共に、長い方の分岐パイプ３の
断面内直径を短い前記分岐パイプ４のそれより大きくし
且つ、夫々の各分岐パイプ3,4の夫々の断面外直径が同
一に形成され、夫々の各分岐パイプ3,4の先端部外周が
前記コアチューブ6,7の開口端内面に挿入されて、その
挿入部が接続されたものである。In the branch structure of the present invention, one ends of a plurality of branch pipes 3 and 4 are connected to the tip of one main pipe 1 via a branch 2 respectively. The other end of each of the branch pipes 3 and 4 has a core tube 6 of the same length and the same diameter as the heat exchanger core 5.
7 is connected to the open end. And each core tube
The present invention relates to a device in which the linear distances between the opening ends of 6, 7 and the branch portion are different from each other. Here, the feature of the present invention is that the branch pipe 4 is disposed at a position where the linear distance is short.
Is shorter than the branch pipe 3 arranged at a position where the straight line distance is long. At the same time, the inner diameter of the cross section of the longer branch pipe 3 is made larger than that of the shorter branch pipe 4, and the outer diameter of the cross section of each of the branch pipes 3 and 4 is formed to be the same. The outer peripheries of the distal ends of the pipes 3 and 4 are inserted into the inner surfaces of the open ends of the core tubes 6 and 7, and the inserted portions are connected.
本考案の分岐部構造によれば、より長い分岐パイプの
内直径が短い分岐パイプのそれよりも大きく形成され且
つ、各分岐パイプ3,4の夫々の断面外直径が同一に形成
されているから、夫々の分岐パイプの流通抵抗を等しく
し、各分岐パイプの冷媒の流路を等しくすることができ
る。According to the branch portion structure of the present invention, the inner diameter of the longer branch pipe is formed larger than that of the shorter branch pipe, and the outer diameter of the cross section of each of the branch pipes 3 and 4 is the same. The flow resistance of each branch pipe can be made equal, and the flow path of the refrigerant in each branch pipe can be made equal.
しかも、長い分岐パイプの先端がより長いコアチュー
ブの一端開口内面に接続されるから、夫々の分岐パイプ
を整然と配置し、体裁が良く冷媒の流れ状態の良い分岐
部構造となる。そして各分岐パイプ3,4の断面外直径が
同一であるから、同一直径のコアチューブに夫々同一条
件で容易にろう付けができ、量産性の高い熱交換器を提
供できる。In addition, since the end of the long branch pipe is connected to the inner surface of the one end opening of the longer core tube, the branch pipes are arranged neatly, and the appearance of the branch portion is good, and the refrigerant flow state is good. Since the cross-sectional outer diameters of the branch pipes 3 and 4 are the same, brazing can be easily performed on the core tubes having the same diameter under the same conditions, and a heat exchanger with high mass productivity can be provided.
〔実施例〕 次に、図面に基づいて本考案の実施例につき説明す
る。Next, an embodiment of the present invention will be described with reference to the drawings.
第１図は本分岐構造の第１実施例の要部を示し、第２
図はその分岐構造を有する熱交換器の略図、第３図は同
分岐構造の分岐部２の縦断面図であり、第４図はその斜
視図である。又、第５図は本考案の第２実施例の分岐構
造の要部を示す。FIG. 1 shows a main part of a first embodiment of the present branch structure, and FIG.
The figure is a schematic view of a heat exchanger having the branch structure, FIG. 3 is a longitudinal sectional view of a branch portion 2 of the branch structure, and FIG. 4 is a perspective view thereof. FIG. 5 shows a main part of a branch structure according to a second embodiment of the present invention.
この実施例の熱交換器は多数のプレートフィン1,1が
小隙を有して並列されると共に、夫々のフィン１のチュ
ーブ挿通孔が整合され、各チューブ挿通孔にコアチュー
ブ6,7,9が挿通される。このコアチューブ6,7,9は一般に
Ｕ字状に形成された断面円形のチューブを用いることが
多い。夫々のコアチューブ6,7,9の形状及び長さは同一
とされる。このようにしてなる熱交換器コア５の両側に
は夫々サイドメンバ10が配置される。又、各コアチュー
ブ6,7,9の開口端は拡開される。なお、この図面では省
略のため、コアチューブ6,7,9の数が比較的少ないが、
一般にはさらに多数のコアチューブが配置される。そし
て、コアチューブ6,7,9の一方の開口端に分岐パイプ3,
4,8の先端がろう付けにより接続される。これらの分岐
パイプは第１図に示す如く夫々長さの異なったものが用
いられる。そして、最も短い分岐パイプ８の断面内直径
が最小で、最長の分岐パイプ３の断面内直径が最大であ
る。そして、各分岐パイプの断面直径と長さの相関関係
は、夫々の内部を流通する冷媒の流体抵抗が同一となる
ように形成されている。このようにしてなる分岐パイプ
の夫々の先端をコアチューブ６の開口端に接続する。こ
のとき、より長い分岐パイプ３の先端は主パイプ１先端
に対してより遠いコアチューブ６の開口端に挿入され、
該挿入部がろう付け部15により接合される。なお、主パ
イプ１及び分岐部２の先端部は第３図に示す如く形成さ
れている。即ち、主パイプ１の先端内部に３本の分岐部
が主パイプ１先端から放射状に３本穿設されている。３
本の穿設孔は夫々同一直径に形成される。そして、その
穿設孔の先端部を段付け状に拡開した孔とし、その拡開
孔部に分岐パイプ3,4,8の一端部を嵌着し、該嵌着部を
ろう付け固定したものである。In the heat exchanger of this embodiment, a number of plate fins 1 and 1 are arranged side by side with a small gap, and the tube insertion holes of the respective fins 1 are aligned, and the core tubes 6, 7 and 9 is inserted. As the core tubes 6, 7, and 9, generally, U-shaped tubes having a circular cross section are often used. The shape and length of each of the core tubes 6, 7, 9 are the same. Side members 10 are disposed on both sides of the heat exchanger core 5 thus configured. The open ends of the core tubes 6, 7, 9 are expanded. In addition, although the number of the core tubes 6, 7, and 9 is relatively small for omission in this drawing,
Generally, more core tubes are arranged. Then, branch pipes 3, 3 are provided at one open ends of the core tubes 6, 7, 9.
4,8 tips are connected by brazing. These branch pipes have different lengths as shown in FIG. The shortest branch pipe 8 has the smallest cross-sectional diameter, and the longest branch pipe 3 has the largest cross-sectional diameter. Then, the correlation between the cross-sectional diameter and the length of each branch pipe is formed such that the fluid resistance of the refrigerant flowing inside each branch pipe becomes the same. Each end of the branch pipe thus formed is connected to the open end of the core tube 6. At this time, the tip of the longer branch pipe 3 is inserted into the open end of the core tube 6 farther from the tip of the main pipe 1,
The insertion part is joined by the brazing part 15. The distal ends of the main pipe 1 and the branch 2 are formed as shown in FIG. That is, three branch portions are bored radially from the tip of the main pipe 1 inside the tip of the main pipe 1. 3
The perforations of the book are formed to have the same diameter. Then, the end of the drilled hole was formed as a stepped-shaped expanded hole, one end of each of the branch pipes 3, 4, and 8 was fitted into the expanded hole, and the fitted portion was brazed and fixed. Things.
また、各コアチューブの他端はヘッダ13に連結され
る。そして、冷媒が主パイプ１から各分岐パイプ、各コ
アチューブを介してヘッダ13に流通し、フィン外面に送
風が行われ、冷媒より冷却された空気が室内等に導かれ
る。The other end of each core tube is connected to the header 13. Then, the refrigerant flows from the main pipe 1 to the header 13 via each branch pipe and each core tube, and the air is blown to the outer surface of the fin, so that the air cooled by the refrigerant is introduced into the room or the like.
次に、第５図は本考案の第２実施例であり、この実施
例は分岐パイプ3,4,8の断面の外直径が夫々異なり、最
長の分岐パイプ３のそれが最大で、最短の分岐パイプ８
のそれが最小である。しかしながら、夫々の分岐パイプ
の肉厚は同一に形成されている。その結果、分岐パイプ
３の断面内直径D1が最大となり、分岐パイプ８の断面内
直径D2が最小となる。そして、これらの分岐パイプ内部
の流路抵抗は夫々等しく形成されている。Next, FIG. 5 shows a second embodiment of the present invention. In this embodiment, the outer diameters of the cross sections of the branch pipes 3, 4, and 8 are different from each other, and that of the longest branch pipe 3 is the largest and the shortest. Branch pipe 8
It's the smallest. However, the thickness of each branch pipe is the same. As a result, cross-section in the diameter D 1 of the branch pipe 3 is maximum, within the cross section diameter D 2 of the branch pipe 8 is minimized. And the flow path resistance inside these branch pipes is formed equally.
本考案の熱交換器の分岐部構造は以上のような構成か
らなり、次の効果を有する。The branch structure of the heat exchanger of the present invention is configured as described above and has the following effects.
本考案の構造は分岐部２からの直線距離が夫々異なっ
た複数のコアチューブ6,7,9に接続される分岐パイプに
おいて、前記直線距離が長いものほど分岐パイプの長さ
を長くしたため、曲がり部が少なく整然とした体裁のよ
い分岐部構造を提供すると共に、分岐パイプの長さが長
いほど、その分岐パイプの断面内直径を大きくしたか
ら、主パイプ１から流出する熱交換媒体を各分岐パイプ
にほぼ均等に分配することができる。それにより、熱交
換器コア各部における熱交換性能を均一に維持し得る効
果がある。In the structure of the present invention, in the branch pipes connected to the plurality of core tubes 6, 7, and 9 having different linear distances from the branch portion 2, the longer the linear distance is, the longer the length of the branch pipe is. In addition to providing a well-organized and well-organized branch portion structure and increasing the length of the branch pipe, the cross-sectional inner diameter of the branch pipe is increased, so that the heat exchange medium flowing out of the main pipe 1 is transferred to each branch pipe. Can be distributed almost evenly. Thereby, there is an effect that the heat exchange performance in each part of the heat exchanger core can be maintained uniformly.
しかも、本考案の各分岐パイプ3,4の外直径が同一に
形成されているから、同一直径のコアチューブ6,7に夫
々同一条件で容易にろう付け接合し、量産性が高い熱交
換器を提供できる。Moreover, since the branch pipes 3 and 4 of the present invention have the same outer diameter, they can be easily brazed and joined to the core tubes 6 and 7 of the same diameter under the same conditions, respectively, so that the heat exchanger having high mass productivity can be obtained. Can be provided.
第１図は本分岐構造の第１実施例の要部を示し、第２図
はその分岐構造を有する熱交換器の略図、第３図は同分
岐構造の分岐部２の縦断面図であり、第４図はその斜視
図である。又、第５図は本考案の第２実施例の分岐構造
の要部を示す。第６図は従来型分岐構造の要部を示し、
第７図はその分岐パイプの展開状態を示す。 １……主パイプ、２……分岐部 3,4,8……分岐パイプ、５……熱交換器コア 6,7,9……コアチューブ 10……サイドメンバ10、11……フィン 12……Ｕベンド部、13……ヘッダ 15……ろう付け部FIG. 1 shows a main part of a first embodiment of the present branch structure, FIG. 2 is a schematic view of a heat exchanger having the branch structure, and FIG. 3 is a longitudinal sectional view of a branch portion 2 of the branch structure. FIG. 4 is a perspective view thereof. FIG. 5 shows a main part of a branch structure according to a second embodiment of the present invention. FIG. 6 shows a main part of a conventional branch structure,
FIG. 7 shows an expanded state of the branch pipe. 1 ... Main pipe, 2 ... Branch section 3,4,8 ... Branch pipe, 5 ... Heat exchanger core 6,7,9 ... Core tube 10 ... Side member 10,11 ... Fin 12 ... ... U-bend, 13 ... Header 15 ... Brazed part
Claims (1)
て複数本の分岐パイプ3,4の一端が夫々接続され、該分
岐パイプ3,4の他端が夫々、熱交換器コア５の同一長さ
及び同一直径の各コアチューブ6,7の開口端に接続さ
れ、夫々の前記コアチューブ6,7の開口端と前記分岐部
２の直線距離が互いに異なる熱交換器の分岐部構造にお
いて、前記直線距離の短い位置に配置される前記分岐パ
イプ４の長さが、直線距離の長い位置に配置される分岐
パイプ３より短くされ、長い方の前記分岐パイプ３の断
面内直径が短い前記分岐パイプ４のそれよりも大きくさ
れると共に、前記各分岐パイプ3,4の夫々の断面外直径
が同一に形成され、夫々の各分岐パイプ3,4の先端部外
周が、前記コアチューブ6,7の開口端内面に挿入され
て、その挿入部が接続された熱交換器の分岐部構造。1. One end of each of a plurality of branch pipes 3, 4 is connected to the end of one main pipe 1 via a branch portion 2, and the other ends of the branch pipes 3, 4 are connected to a heat exchanger, respectively. The branch of the heat exchanger which is connected to the open ends of the core tubes 6, 7 of the same length and the same diameter of the core 5 and in which the linear distance between the open ends of the core tubes 6, 7 and the branch portion 2 is different from each other. In the partial structure, the length of the branch pipe 4 arranged at a position where the straight line distance is short is shorter than the length of the branch pipe 3 arranged at a position where the straight line distance is long, and the cross-sectional inner diameter of the longer branch pipe 3 Is larger than that of the shorter branch pipe 4, and each of the branch pipes 3, 4 is formed to have the same cross-sectional outer diameter, and the outer periphery of the tip end of each of the branch pipes 3, 4 is formed by the core. A heat exchanger that is inserted into the inner surfaces of the open ends of tubes 6 and 7, and that insertion part is connected The bifurcation structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990059349U JP2543965Y2 (en) | 1990-06-04 | 1990-06-04 | Branch structure of heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990059349U JP2543965Y2 (en) | 1990-06-04 | 1990-06-04 | Branch structure of heat exchanger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0417291U JPH0417291U (en) | 1992-02-13 |
| JP2543965Y2 true JP2543965Y2 (en) | 1997-08-13 |
Family
ID=31585770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990059349U Expired - Lifetime JP2543965Y2 (en) | 1990-06-04 | 1990-06-04 | Branch structure of heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2543965Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015117925A (en) * | 2013-12-18 | 2015-06-25 | 寛 ▲高▼田 | Refrigerant flow diverter |
| JP6742112B2 (en) * | 2016-02-29 | 2020-08-19 | 三菱重工サーマルシステムズ株式会社 | Heat exchanger and air conditioner |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5132458U (en) * | 1974-09-02 | 1976-03-10 | ||
| JPS61170895U (en) * | 1985-04-15 | 1986-10-23 |
-
1990
- 1990-06-04 JP JP1990059349U patent/JP2543965Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0417291U (en) | 1992-02-13 |
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