JPH03174971A - Manufacture of core in heat exchanger - Google Patents
Manufacture of core in heat exchangerInfo
- Publication number
- JPH03174971A JPH03174971A JP31373989A JP31373989A JPH03174971A JP H03174971 A JPH03174971 A JP H03174971A JP 31373989 A JP31373989 A JP 31373989A JP 31373989 A JP31373989 A JP 31373989A JP H03174971 A JPH03174971 A JP H03174971A
- Authority
- JP
- Japan
- Prior art keywords
- core
- tube
- curved
- heat exchanger
- flat
- 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 9
- 238000000034 method Methods 0.000 claims description 8
- 238000005452 bending Methods 0.000 abstract description 5
- 238000005219 brazing Methods 0.000 abstract description 5
- 238000003780 insertion Methods 0.000 description 4
- 230000037431 insertion Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000005482 strain hardening Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
- F28D1/053—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
- F28D1/0535—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight the conduits having a non-circular cross-section
- F28D1/05366—Assemblies of conduits connected to common headers, e.g. core type radiators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D2001/0253—Particular components
- F28D2001/026—Cores
- F28D2001/0273—Cores having special shape, e.g. curved, annular
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は自動二輪車或いは自動三輪車に取り付けられる
前面面積の少ない曲げコアタイプの熱交換器の製造方法
に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for manufacturing a bent core type heat exchanger with a small front surface area, which is attached to a motorcycle or a tricycle.
多数の偏平チューブと、各偏平チューブ間に介装したコ
ルゲートフィンとでコアを形威し、該コアを一つの平面
に沿って湾曲した構造の熱交換器コアが存在する。この
コアの製造方法としては、先ず平板状のコアを形威し、
フィンとチューブとの間を一旦ろう付けした後に、外力
を加えて断面孤状に形成するものである。There is a heat exchanger core in which the core is formed by a large number of flat tubes and corrugated fins interposed between the flat tubes, and the core is curved along one plane. The method for manufacturing this core is to first form a flat core,
After the fins and the tube are once brazed together, an external force is applied to form them into an arc-shaped cross section.
また、このように二次元平面で湾曲された熱交換器の他
に、三次元曲面として形成された熱交換器も提案されて
いた。しかしながらこのような三次元的曲げを行えるこ
とのできるコアの製造方法は何ら示されていなかった。In addition to heat exchangers curved in two-dimensional planes, heat exchangers formed as three-dimensional curved surfaces have also been proposed. However, no method for manufacturing a core capable of performing such three-dimensional bending has been disclosed.
一度に、コアを三次元的に曲げるため外力を加えると、
チューブは異常な変形をきたし、熱交換器コアとしての
空気の流通性を阻害するものとなる。次に、平面状のコ
ア壱先ず二次元的に一方の平面に沿って湾曲させ、その
後にそれに直交する平面に沿って湾曲させることにより
三次元曲げを行う方法も考えられるが、二度に渡ってチ
ューブに変形を加えることは事実上不可能に近い。即ち
、最初の変形によりチューブは加工硬化を起こし、二度
目の曲げの際にはチューブに亀裂が生じる虞れがある。When an external force is applied to bend the core three-dimensionally at once,
The tube will undergo abnormal deformation, which will impede the flow of air as the heat exchanger core. Next, it is possible to bend a planar core in three dimensions by first curving it two-dimensionally along one plane and then curving it along a plane perpendicular to that plane, but It is virtually impossible to deform the tube. That is, the tube undergoes work hardening due to the first deformation, and the tube may crack during the second bending.
そこで本発明は以上の問題点を取り除くため次の構成に
より三次元曲げコアを得るものである。本発明の製造方
法は、断面の長軸が空気流通方向に平行に位置して並列
した多数の偏平チューブ１と、夫々の前記チューブ間に
介装されたコルゲートフィン２とを有する。このような
熱交コア３の製造方法において、前記偏平チューブの軸
線に直交するコア３の断面が孤状をなすように、夫々軸
線が直線状の偏平チューブと前記チューブとコルゲート
フィンとを該孤状に沿って配置して、それらをその状態
で互いにろう付け固定するコア焼き工程と、該コア焼き
工程の後に、チューブの前記軸線が前記孤状の凸側に凸
となるように外力を加えて湾曲形成した工程とを、具備
することを特徴とする。Therefore, in order to eliminate the above-mentioned problems, the present invention provides a three-dimensional bent core with the following configuration. The manufacturing method of the present invention includes a large number of flat tubes 1 arranged in parallel with the long axes of their cross sections parallel to the air flow direction, and corrugated fins 2 interposed between the tubes. In this method of manufacturing a heat exchanger core 3, a flat tube whose axis is straight, the tube, and a corrugated fin are connected to each other so that the cross section of the core 3 perpendicular to the axis of the flat tube is arc-shaped. A core baking process in which the tubes are arranged along the shape of the tube and fixed to each other by brazing in that state, and after the core baking process, an external force is applied so that the axis of the tube becomes convex on the convex side of the arc shape. and a step of forming a curve.
次に図面に基づいて本発明の実施例につき説明する。 Next, embodiments of the present invention will be described based on the drawings.
第一図は本発明の一実施例の第一工程を示す斜視説明図
であり、第二図はその第二工程を示す斜視説明図である
。この実施例は水冷エンジンを搭載する自動二輪車又は
自動三輪車の前輪とエンジンとの間に配置されるもので
ある。そして、エンジン冷却水を内部に循環させ、それ
を走行風により冷却してエンジンに供給するものである
。そして本発明の目的とする熱交換器は、−例としてパ
ラボラ状の凹曲面の一部を有するような三次元的に湾曲
した熱交換器を製造するものである。そのために、先ず
第一図に示す如く二次元的に湾曲した熱交換器を製造す
る。FIG. 1 is a perspective explanatory view showing the first step of an embodiment of the present invention, and FIG. 2 is a perspective explanatory view showing the second step. This embodiment is arranged between the engine and the front wheel of a motorcycle or tricycle equipped with a water-cooled engine. Then, engine cooling water is circulated inside, cooled by the running wind, and then supplied to the engine. The heat exchanger that is the object of the present invention is a three-dimensionally curved heat exchanger having, for example, a part of a parabolic concave curved surface. For this purpose, first, a two-dimensionally curved heat exchanger as shown in FIG. 1 is manufactured.
そのためには、多数の偏平チューブ１を互いに離間して
並列すると共に、各偏平チューブ１゜１間にコルゲート
フィン２を介装してコア３を構成する。このコア３は軸
線が直線状の偏平チューブｌの先端縁とコルゲートフィ
ン２の先端縁とが湾曲するように配置されている。この
ようにするには、予め二次元的に湾曲した平面板等に偏
平チューブ１及びコルゲートフィン２を載置すればよい
。そしてコア３の両側端に端板５を配置する。この端ｖ
ｉ、５はその長手方向に平行な両側に予めスリット６が
形成されている。To this end, a large number of flat tubes 1 are arranged in parallel at a distance from each other, and corrugated fins 2 are interposed between each flat tube 1 to form a core 3. This core 3 is arranged so that the leading edge of the flat tube 1 whose axis is straight and the leading edge of the corrugated fin 2 are curved. To do this, the flat tube 1 and the corrugated fin 2 may be placed on a two-dimensionally curved flat plate or the like in advance. Then, end plates 5 are arranged at both ends of the core 3. This end v
i, 5 has slits 6 formed in advance on both sides parallel to its longitudinal direction.
このスリントロは後に三次元曲げを行う際に端板５自体
を容易に変形し得るようにするためである。次にこの実
施例では夫々の偏平チューブｌの両端部をチューブプレ
ート４のチューブ挿通孔７に嵌入する。このチューブプ
レート４は全体が予め平面的に湾曲した形状を有し、多
数の偏平なチューブ挿通孔７が互いに離間して穿設され
ている。このチューブ挿通孔７の孔縁部はタンクの内側
に僅かにバーリンク加工されている。又チューブプレー
ト４の外周縁は全周に渡って溝部が形成されている。こ
の溝部には図示しない細長いタンクの開口縁が嵌着し、
両者が一体的にろう付けされるものである。この実施例
では、第一工程においてコア３と端板５及びチューブプ
レート４のみを一体的にろう付けした後に、タンク本体
をチューブプレート４の溝部に嵌着しろう付けすること
ができる。或いはタンク本体も含めて第一工程で一体的
にろう付けしてもよい。また、コア３及び端板５のみを
先にろう付けしておき、その後にコア３にチューブプレ
ート４をろう付けし更に、チューブプレート４にタンク
本体をろう付けする方法も考えられる。いずれにしても
、コア３のろう付けは、夫々接触する少なくとも一方の
部品の外表面にろう材を被覆しておき、全体を組み立て
た後に、適宜な治具でその組み立て状態を保持して、全
体を高温の炉内に挿入する。この実施例では、偏平チュ
ーブ１．コルゲートフィン２゜端板５．チューブプレー
ト４は夫々アルミニウム材からなる。そして高温の炉内
でろう材を溶融させて各部品間を一体的にろう付け固定
して第−工程を終わる。このようにして二次元平面内で
湾曲した熱交換器コアを形成する。次に、このコアを金
型に載置し、外力を加えて三次元的に湾曲させるもので
ある。この金型は、予め三次元平面内で湾曲されたもの
であり、コア３はこの湾曲面に沿って変形される。この
とき、コア３は偏平チューブｌの中心軸線が湾曲するよ
うに変形する。偏平チューブ１の外周に形成された平行
な二手面はその平面状態を保ったまま湾曲されることに
なる。また、コア３の両側に位置する端板５も同時に湾
曲され、第二図に示す熱交換器を得る。即ちコア３の左
右両側に一対のチューブプレート４が位置すると共に、
上下両側に端板５が位置して三次元曲面で湾曲した熱交
換器を得る。このような状態で次にチューブプレート４
の溝内に図示しないタンク本体の裾部を嵌着し、両者の
間をろう付けすればよい。The purpose of this slinting is to allow the end plate 5 itself to be easily deformed when performing three-dimensional bending later. Next, in this embodiment, both ends of each flat tube l are inserted into the tube insertion holes 7 of the tube plate 4. This tube plate 4 has a shape that is previously curved in a plane, and has a large number of flat tube insertion holes 7 spaced apart from each other. The edge of the tube insertion hole 7 is slightly bar-linked on the inside of the tank. Further, a groove is formed all around the outer peripheral edge of the tube plate 4. The opening edge of an elongated tank (not shown) fits into this groove.
Both are integrally brazed. In this embodiment, after only the core 3, end plate 5, and tube plate 4 are integrally brazed in the first step, the tank body can be fitted into the groove of the tube plate 4 and brazed. Alternatively, the tank body may also be integrally brazed in the first step. Another possible method is to first braze only the core 3 and end plate 5, then braze the tube plate 4 to the core 3, and then braze the tank body to the tube plate 4. In any case, the core 3 is brazed by coating the outer surface of at least one of the parts that come into contact with a brazing material, and after assembling the whole, the assembled state is maintained using an appropriate jig. Insert the whole thing into a high temperature furnace. In this embodiment, flat tube 1. Corrugated fin 2° end plate 5. The tube plates 4 are each made of aluminum material. Then, the brazing material is melted in a high-temperature furnace and each part is integrally brazed and fixed to complete the first step. In this way, a heat exchanger core is formed that is curved in a two-dimensional plane. Next, this core is placed in a mold and an external force is applied to curve it three-dimensionally. This mold is previously curved within a three-dimensional plane, and the core 3 is deformed along this curved surface. At this time, the core 3 is deformed so that the central axis of the flat tube 1 is curved. The two parallel surfaces formed on the outer periphery of the flat tube 1 are curved while maintaining their flat state. Also, the end plates 5 located on both sides of the core 3 are also curved at the same time to obtain the heat exchanger shown in FIG. That is, a pair of tube plates 4 are located on both the left and right sides of the core 3, and
End plates 5 are located on both upper and lower sides to obtain a heat exchanger curved with a three-dimensional curved surface. In this condition, next tube plate 4
The hem of the tank body (not shown) may be fitted into the groove, and the two may be brazed together.
本発明の熱交換器のコア製造方法は、先ず軸線が直線状
の偏平チューブとコルゲートフィンとを断面孤状に配置
して、それら各部品間をろう付け固定するコア焼き工程
を有する。そして、該コア焼きの後にチューブの軸線が
前記断面孤状の凸側に凸になるように外力を加えて湾曲
形成したものであるから、チューブを一回の曲げ加工に
より、コア全体が三次元的な孤状曲面を形成し得る。即
ちチューブが無理なく変形され、コア面を三次元的［Ｉ
Ｉ］面を形成することができる。The heat exchanger core manufacturing method of the present invention includes a core baking step in which a flat tube with a straight axis and a corrugated fin are arranged to have an arc-shaped cross section, and each of these parts is brazed and fixed. After the core is baked, an external force is applied to bend the tube so that the axis of the tube becomes convex toward the convex side of the arcuate cross section. Therefore, by bending the tube once, the entire core can be shaped into a three-dimensional shape. It is possible to form an arcuate curved surface. In other words, the tube is deformed easily, and the core surface is transformed into a three-dimensional [I
I] surface can be formed.
それにより熱交換器コア前面の面積を縮小し得ると共に
、車両の走行に伴って生じる走行風を効率良く熱交換器
コアに導き得るものを提供できる。As a result, the area of the front surface of the heat exchanger core can be reduced, and it is possible to efficiently guide the wind generated as the vehicle travels to the heat exchanger core.
第一図は本発明の一実施例の第一工程を示す斜視説明図
であり、第二図はその第二工程を示す斜視説明図である
。
１・・・偏平チューブ ２・・・コルデー１−フィン３
・・・コア ４・・・チューブプレート５・・
・端板 ６・・・スリット７・・・チューブ挿
通孔
第２圓FIG. 1 is a perspective explanatory view showing the first step of an embodiment of the present invention, and FIG. 2 is a perspective explanatory view showing the second step. 1...Flat tube 2...Corday 1-Fin 3
...Core 4...Tube plate 5...
・End plate 6...Slit 7...Tube insertion hole 2nd round
Claims (1)
数の偏平チューブ１と、夫々の前記チューブ間に介装さ
れたコルゲートフィン２とを有する熱交コア３の製造方
法において、前記偏平チューブの軸線に直交するコア３
の断面が孤状をなすように、夫々軸線が直線状の偏平チ
ューブとコルゲートフィンとを該孤状に沿って配置して
、それらを孤状の状態で互いにろう付け固定するコア焼
き工程と、該コア焼き工程の後に、チューブの前記軸線
が前記孤状の凸側に凸となるように外力を加えて湾曲形
成する工程と、を具備することを特徴とする熱交換器コ
アの製造方法。In the method for manufacturing a heat exchanger core 3, the heat exchanger core 3 includes a large number of flat tubes 1 arranged in parallel with the long axis of the cross section parallel to the air flow direction, and corrugated fins 2 interposed between the respective tubes. Core 3 perpendicular to the axis of the tube
a core baking step in which a flat tube and a corrugated fin each having a linear axis are arranged along the arc shape so that the cross section thereof forms an arc shape, and they are brazed and fixed to each other in the arc shape; A method for manufacturing a heat exchanger core, comprising, after the core baking step, applying an external force to form a curve so that the axis of the tube is convex toward the arc-shaped convex side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31373989A JPH0755371B2 (en) | 1989-12-02 | 1989-12-02 | Method of manufacturing heat exchanger core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31373989A JPH0755371B2 (en) | 1989-12-02 | 1989-12-02 | Method of manufacturing heat exchanger core |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03174971A true JPH03174971A (en) | 1991-07-30 |
| JPH0755371B2 JPH0755371B2 (en) | 1995-06-14 |
Family
ID=18044946
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP31373989A Expired - Lifetime JPH0755371B2 (en) | 1989-12-02 | 1989-12-02 | Method of manufacturing heat exchanger core |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0755371B2 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006308119A (en) * | 2005-04-26 | 2006-11-09 | Denso Corp | Brazing method of heat exchanger |
| KR100682474B1 (en) * | 2001-03-30 | 2007-02-15 | 한라공조주식회사 | End plate of condenser |
| JP2007506931A (en) * | 2003-09-26 | 2007-03-22 | ヴァレオ テルミーク モツール | Curved heat exchanger and manufacturing method thereof |
| JP2007192431A (en) * | 2006-01-17 | 2007-08-02 | Denso Corp | Heat exchanger |
| US7699095B2 (en) | 2006-03-29 | 2010-04-20 | Delphi Technologies, Inc. | Bendable core unit |
| JP2018136060A (en) * | 2017-02-21 | 2018-08-30 | 有限会社和氣製作所 | Heat exchanger |
-
1989
- 1989-12-02 JP JP31373989A patent/JPH0755371B2/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100682474B1 (en) * | 2001-03-30 | 2007-02-15 | 한라공조주식회사 | End plate of condenser |
| JP2007506931A (en) * | 2003-09-26 | 2007-03-22 | ヴァレオ テルミーク モツール | Curved heat exchanger and manufacturing method thereof |
| JP2006308119A (en) * | 2005-04-26 | 2006-11-09 | Denso Corp | Brazing method of heat exchanger |
| JP2007192431A (en) * | 2006-01-17 | 2007-08-02 | Denso Corp | Heat exchanger |
| JP4613832B2 (en) * | 2006-01-17 | 2011-01-19 | 株式会社デンソー | Heat exchanger |
| US7699095B2 (en) | 2006-03-29 | 2010-04-20 | Delphi Technologies, Inc. | Bendable core unit |
| JP2018136060A (en) * | 2017-02-21 | 2018-08-30 | 有限会社和氣製作所 | Heat exchanger |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0755371B2 (en) | 1995-06-14 |
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