JP2546533Y2 - Branch structure of heat exchanger - Google Patents
Branch structure of heat exchangerInfo
- Publication number
- JP2546533Y2 JP2546533Y2 JP1990059350U JP5935090U JP2546533Y2 JP 2546533 Y2 JP2546533 Y2 JP 2546533Y2 JP 1990059350 U JP1990059350 U JP 1990059350U JP 5935090 U JP5935090 U JP 5935090U JP 2546533 Y2 JP2546533 Y2 JP 2546533Y2
- Authority
- JP
- Japan
- Prior art keywords
- branch
- core
- heat exchanger
- pipe
- same
- 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
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/40—Fluid line arrangements
- F25B41/42—Arrangements for diverging or converging flows, e.g. branch lines or junctions
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B39/00—Evaporators; Condensers
- F25B39/02—Evaporators
- F25B39/028—Evaporators having distributing means
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- 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５図及び第６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, the branch structure provided in the 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６図に示す如く主パイプ１の先端に分岐部２
を設け、その先端に一例として三本の分岐パイプ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、その断面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 three branch pipes 3, 4, 8 as an example at the tip.
To protrude. The branch pipes used had the same overall length and the same inner and outer diameters in cross section.
Then, such branch pipes 3, 4 and 8 are connected to the heat exchanger core 5.
Were joined to the core tubes 6, 7, and 9 by brazing, respectively.
従来の分岐構造は、第５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により制約を受
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６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. 5, 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. 6 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
成のために次の構成をとる。In view of the above, the present invention aims to provide a heat exchanger branch structure that is good in appearance and has no waste, and has the following configuration to achieve the purpose.
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を介して複数本の断面同一の分岐パイプ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と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、前記直線距離が短い位置に配
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より短くされ且つ、夫々の分
岐パイプ3,4の外周直径が同一とされると共に、前記短
い分岐パイプ４の先端部のみに次第に直径を縮小するテ
ーパ状部を有する絞り部16が一体形成され、夫々の前記
コアチューブの前記開口端部は段付き状に接続用の拡開
部が同一大きさに形成され、前記短い分岐パイプ４の先
端部が挿入されて、その後部にある分岐パイプ４の本来
の直径部分で前記コアチューブ７に接合され、他の分岐
パイプ３も全てその先端部が前記コアチューブ６の前記
拡開部に挿入され、両者間がその分岐パイプの本来の外
直径部分で接合されたことを特徴とする。In the branch structure of the present invention, one end of each of a plurality of branch pipes 3 and 4 having the same cross section is connected to the end of one main pipe 1 via a branch 2, and the other ends of the branch pipes 3 and 4. Are respectively the same length and the same diameter of the heat exchanger core 5 core tubes.
In the branch structure of the heat exchanger, which is connected to the open ends of the core tubes 6 and 7, and the linear distance between the open ends of the core tubes 6 and 7 and the branch is different from each other, the linear distance is arranged at a short position. The length of the branch pipe 4 is shorter than the length of the branch pipe 3 arranged at a position where the linear distance is longer, and the outer diameter of each of the branch pipes 3 and 4 is the same. A throttle portion 16 having a tapered portion whose diameter is gradually reduced only in the portion is integrally formed, and the open end portion of each of the core tubes is formed in a stepped shape with an expanded portion for connection having the same size, The distal end of the short branch pipe 4 is inserted and joined to the core tube 7 at the original diameter of the branch pipe 4 at the rear thereof, and all the other branch pipes 3 have the distal ends of the core tube 6. Inserted into the widening, During is characterized in that it is joined in the original outside diameter portion of the branch pipe.
本考案の分岐部構造によれば、分岐部から各コアチュ
ーブまでの直線距離が短い位置に、より短い分岐パイプ
が配置され且つ、その短い分岐パイプの先端部に絞り部
16が形成されているものである。従って、夫々の分岐パ
イプを整然と配置し、体裁が良い分岐部構造となると共
に、冷媒の流れ状態の良い分岐部構造となる。すなわ
ち、第１図に示す如く、長い分岐パイプの先端がより遠
いコアチューブの一端に接続されると共に、短い分岐パ
イプの先端部がより近いコアチューブの一端に接続され
るので、分岐パイプに無駄な曲がりを無くすことができ
る。According to the branch portion structure of the present invention, a shorter branch pipe is disposed at a position where the linear distance from the branch portion to each core tube is short, and a narrowing portion is provided at the tip of the short branch pipe.
16 is formed. Therefore, the branch pipes are arranged neatly, so that the branch structure has a good appearance and the branch structure has a good refrigerant flow state. That is, as shown in FIG. 1, the distal end of the long branch pipe is connected to one end of the farther core tube, and the distal end of the short branch pipe is connected to one end of the closer core tube. Can be eliminated.
しかも、各分岐パイプはその絞り部以外の本来の外直
径部分で夫々のコアチューブの拡開部に同一条件で接続
されるから、接続部の信頼性が高く且つ、部品点数を増
やすことなく接続を容易に行い量産性の高いものとな
る。Moreover, since each branch pipe is connected to the expanded portion of each core tube at the original outer diameter portion other than the narrowed portion under the same condition, the connection portion is connected with high reliability and without increasing the number of parts. Can be easily performed and the mass productivity is high.
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図は本分岐構造の一例を示す要部であり、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
岐構造の分岐パイプを示す展開図、第４図は同分岐構造
の分岐部２の斜視図である。FIG. 1 is a main portion showing an example of the present branch structure, FIG. 2 is a schematic view of a heat exchanger having the branch structure, FIG. 3 is a development view showing a branch pipe having the branch structure, and FIG. It is a perspective view of the branch part 2 of the same branch structure.
この実施例の熱交換器は多数のフィン11,11が小隙を
有して並列されると共に、夫々の主パイプ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。又コアチューブ6,7,
9の開口端は拡開され、拡開部14が形成される。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合される。
これらの分岐パイプは、第１図〜第３図に示す如く夫々
の長さの異なったものが用いられる。そして最も長い分
岐パイプ３を除き分岐パイプ4,8に夫々絞り部16,17が形
成される。そして、中間長さの分岐パイプ４の絞り部16
の内直径が、最短長さの分岐パイプ８の絞り部17の内直
径よりも大きくなっている。これらの絞り部16,17と各
分岐パイプの長さの相関関係は、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
ブの開口端に接続する。この時最長の分岐パイプ３の先
端は主パイプ１先端に対して最も遠いコアチューブ６の
拡開部14に挿入され、該挿入部がろう付け部15により接
合される。又最短の分岐パイプ８先端部は第１図の如く
最も近いコアチューブ９の開口端に接続される。なお主
パイプ１及び分岐部２の先端部は第３図〜第４図の如く
形成されている。即ち、主パイプ１の先端内部に図示し
ない三本の分岐孔が主パイプ１先端から放射状に三本穿
設されている。三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状に拡開した孔と
し、その拡開孔の部分に分岐パイプ3,4,8の先端部を嵌
着する。夫々の分岐パイプの断面形状は同一である。そ
して、その嵌着部をろう付け固定する。また、各コアチ
ューブ6,7,9の他端はヘッダ13に接続される。そして、
冷媒は主パイプ１から各分岐パイプおよび各コアチュー
ブを介してヘッダ13に流通し、該コア５の外面に送風が
行われ、冷却した空気を室内等に導くものである。In the heat exchanger of this embodiment, a large number of fins 11, 11 are arranged side by side with a small gap, the tube insertion holes of the respective main pipes 1 are aligned, and the core tubes 6,
7,9 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. Also, core tubes 6, 7,
The open end of 9 is expanded to form an expanded portion 14. In addition,
In this drawing, the number of core tubes 6, 7, 9 is relatively small due to omission, but generally more core tubes are arranged. Then, the distal ends of the branch pipes 3, 4, 8 are joined to one open ends of the core tubes 6, 7, 9 by brazing.
These branch pipes having different lengths as shown in FIGS. 1 to 3 are used. Except for the longest branch pipe 3, throttle sections 16 and 17 are formed in the branch pipes 4 and 8, respectively. Then, the constricted portion 16 of the intermediate length branch pipe 4
Is larger than the inner diameter of the constricted portion 17 of the shortest branch pipe 8. The correlation between the lengths of the throttle portions 16 and 17 and the lengths of the respective branch pipes is formed so that the fluid resistance of the refrigerant flowing through the respective insides becomes the same. Each end of the branch pipe thus formed is connected to the open end of the core tube. At this time, the distal end of the longest branch pipe 3 is inserted into the expanded portion 14 of the core tube 6 farthest from the distal end of the main pipe 1, and the inserted portion is joined by the brazing portion 15. In addition, the distal end of the shortest branch pipe 8 is connected to the open end of the closest core tube 9 as shown in FIG. The distal end portions of the main pipe 1 and the branch portion 2 are formed as shown in FIGS. That is, three branch holes (not shown) are formed inside the tip of the main pipe 1 radially from the tip of the main pipe 1. Each of the three holes is formed to have the same diameter. Then, the tip of the drilled hole is formed as a stepped-opened hole, and the tip of the branch pipes 3, 4, 8 is fitted into the portion of the expanded hole. The cross-sectional shape of each branch pipe is the same. Then, the fitting portion is brazed and fixed. The other ends of the core tubes 6, 7, 9 are connected to the header 13. And
The refrigerant flows from the main pipe 1 to the header 13 via the branch pipes and the core tubes, and the air is blown to the outer surface of the core 5 to guide the cooled air into the room or the like.
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良
い分岐部構造を提供すると共に、分岐パイプの長さが短
いものに、その先端部に絞り部16を形成したから、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
部における熱交換器性能を均一維持し得る効果がある。
又、その絞り部16は分岐パイプとコアパイプとの接続部
又は分岐部２との接続部に内装されるように構成したか
ら、体裁が良く且つ、その絞り状態を保護し得る。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 branching structure with a small section, and having a narrow branch pipe with a narrowed portion 16 at the tip, the heat exchange medium flowing out of the main pipe 1 is divided into respective branches. It can be distributed almost evenly to the pipe. Thereby, there is an effect that the heat exchanger performance in each part of the heat exchanger core can be maintained uniformly.
In addition, since the constricted portion 16 is configured to be installed at the connection between the branch pipe and the core pipe or the connection between the branch portion 2, the appearance is good and the constricted state can be protected.
しかも、各分岐パイプは、絞り部の存在しない本来の
外直径部分において、コアチューブの拡開部に同一条件
で接続されるので、接続部の信頼性が高く且つ、接続が
容易で量産性が高いものとなる。In addition, since each branch pipe is connected to the expanded portion of the core tube under the same conditions in the original outer diameter portion where the constricted portion does not exist, the reliability of the connection portion is high, connection is easy, and mass productivity is improved. It will be expensive.
第１図は本分岐部構造の一例の要部を示し、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
造の展開図、第４図はその分岐部２の斜視図、第５図は
従来型分岐部構造の略図、第６図はその展開図。 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、11……フィン 12……Ｕベンド部、13……ヘッダ 14……拡開部、15……ろう付け部 16,17……絞り部FIG. 1 shows a main part of an example of the present branch structure, FIG. 2 is a schematic view of a heat exchanger having the branch structure, FIG. 3 is a development view of the branch structure, and FIG. FIG. 5 is a schematic view of a conventional branch portion structure, and FIG. 6 is a developed view thereof. 1 ... Main pipe, 2 ... Branch section 3,4,8 ... Branch pipe, 5 ... Heat exchanger core 6,7,9 ... Core tube 10 ... Side member, 11 ... Fin 12 ... U-bend, 13… Header 14… Expanding part, 15… Brazing part 16, 17… Narrowing part
Claims (1)
て複数本の断面同一の分岐パイプ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
記分岐部と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、前記直線距離が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より短くされ且つ、夫々の分岐パイプ
3,4の外周直径が同一とされると共に、前記短い分岐パ
イプ４の先端部のみに次第に直径を縮小するテーパ状部
を有する絞り部16が一体形成され、夫々の前記コアチュ
ーブの前記開口端部は段付き状に接続用の拡開部が同一
大きさに形成され、その拡開部に前記短い分岐パイプ４
の先端部が挿入されて、その後部にある分岐パイプ４の
本来の直径部分で前記コアチューブ７に接合され、他の
分岐パイプ３も全て前記コアチューブ６の前記拡開部に
挿入されて、両者間がその分岐パイプの本来の外直径部
分で接合されたことを特徴とする熱交換器の分岐部構
造。1. One end of each of a plurality of branch pipes 3 and 4 having the same cross section is connected to the tip of one main pipe 1 via a branch portion 2, and the other ends of the branch pipes 3 and 4 are respectively connected to each other. Heat exchanger core 5
The branch portion structure of the heat exchanger connected to the open ends of the core tubes 6 and 7 having the same length and the same diameter, and having different linear distances from the open ends of the core tubes 6 and 7 and the branch portions. In the above, the length of the branch pipes 4 arranged at the position where the linear distance is short is made shorter than the branch pipes 3 arranged at the position where the linear distance is long, and
The narrowed portions 16 having the same outer diameter as 3, 4 and having a tapered portion whose diameter is gradually reduced only at the tip of the short branch pipe 4 are integrally formed, and the open ends of the core tubes are respectively formed. The connecting portion is formed in the shape of a step with an enlarged portion for connection having the same size.
Is inserted into the core tube 7 at the original diameter portion of the branch pipe 4 at the rear thereof, and all the other branch pipes 3 are also inserted into the expanded portion of the core tube 6, A branch structure of a heat exchanger, wherein the two are joined at an original outer diameter portion of the branch pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990059350U JP2546533Y2 (en) | 1990-06-04 | 1990-06-04 | Branch structure of heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990059350U JP2546533Y2 (en) | 1990-06-04 | 1990-06-04 | Branch structure of heat exchanger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0417292U JPH0417292U (en) | 1992-02-13 |
| JP2546533Y2 true JP2546533Y2 (en) | 1997-09-03 |
Family
ID=31585772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990059350U Expired - Lifetime JP2546533Y2 (en) | 1990-06-04 | 1990-06-04 | Branch structure of heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2546533Y2 (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004116912A (en) * | 2002-09-26 | 2004-04-15 | Toyo Radiator Co Ltd | Tank-less heat exchanger |
| JP2009168196A (en) * | 2008-01-18 | 2009-07-30 | Hitachi Appliances Inc | Distributor |
| JP2010133594A (en) * | 2008-12-03 | 2010-06-17 | Mitsubishi Heavy Ind Ltd | Boiler structure |
| JP5230396B2 (en) * | 2008-12-18 | 2013-07-10 | 三菱重工業株式会社 | Piping structure of boiler device and the boiler device |
| JP2011089710A (en) * | 2009-10-22 | 2011-05-06 | Daikin Industries Ltd | Refrigerant heat exchanger |
| JP5961816B2 (en) * | 2012-02-22 | 2016-08-02 | パナソニックＩｐマネジメント株式会社 | Heat pump heat source machine |
| JP6164047B2 (en) * | 2013-10-31 | 2017-07-19 | ダイキン工業株式会社 | Heat exchanger and air conditioner |
| JP6351494B2 (en) | 2014-12-12 | 2018-07-04 | 日立ジョンソンコントロールズ空調株式会社 | Air conditioner |
| CN110095008A (en) * | 2018-01-27 | 2019-08-06 | 浙江盾安热工科技有限公司 | A kind of heat exchanger switching device |
| JP6596541B2 (en) * | 2018-06-05 | 2019-10-23 | 日立ジョンソンコントロールズ空調株式会社 | Air conditioner |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5132458U (en) * | 1974-09-02 | 1976-03-10 | ||
| JPS61114271U (en) * | 1984-12-27 | 1986-07-19 | ||
| JPS61170895U (en) * | 1985-04-15 | 1986-10-23 | ||
| JPS62147296A (en) * | 1985-12-20 | 1987-07-01 | Matsushita Electric Ind Co Ltd | Finned heat exchanger |
-
1990
- 1990-06-04 JP JP1990059350U patent/JP2546533Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0417292U (en) | 1992-02-13 |
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