JPH10122778A - Tubes for heat exchanger and method of manufacture - Google Patents

Tubes for heat exchanger and method of manufacture

Info

Publication number
JPH10122778A
JPH10122778A JP27255596A JP27255596A JPH10122778A JP H10122778 A JPH10122778 A JP H10122778A JP 27255596 A JP27255596 A JP 27255596A JP 27255596 A JP27255596 A JP 27255596A JP H10122778 A JPH10122778 A JP H10122778A
Authority
JP
Japan
Prior art keywords
tube
flat plate
ridges
heat exchanger
bent
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
Application number
JP27255596A
Other languages
Japanese (ja)
Other versions
JP3459924B2 (en
Inventor
Hiroshi Kobayashi
弘 小林
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to JP27255596A priority Critical patent/JP3459924B2/en
Publication of JPH10122778A publication Critical patent/JPH10122778A/en
Application granted granted Critical
Publication of JP3459924B2 publication Critical patent/JP3459924B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • 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
    • F28D1/03—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 plate-like or laminated conduits
    • F28D1/0391—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 plate-like or laminated conduits a single plate being bent to form one or more conduits

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Geometry (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)

Abstract

PROBLEM TO BE SOLVED: To manufacture tubes for a heat exchanger which are easy of production and of which manufacturing cost is low. SOLUTION: A rugged plate with protruding rows 2 and recessed rows is bent to flat tube shapes, the opposing protruded rows are matched to form partition walls 5 and medium paths 6, and both the edge parts 7 and 8 on the broad side of the rugged plate 4 are blocked. The rugged plate 4 with the protruded rows 2 and the recessed rows is bent to the flat tube shapes, the partition walls 5 and the medium paths 6 are formed inside them matching the protruded rows 2 and the recessed rows. The rugged plate 4 with the protruded rows 2, the recessed rows and flat parts 13 is bent to the flat tube shapes and the partition walls 5 and the medium paths 6 are formed inside them by matching the protruded rows with the flat parts.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【産業上の利用分野】本発明は例えば自動車のラジエタ
ー、ヒータコア、コンデンサ（冷媒凝縮器）、エバポレ
ータ等の熱交換器、特に、高圧媒体（冷媒或は温媒）を
流すコンデンサに用いるのに適し、また、家電用や業務
用の暖冷房機器の熱交換器にも使用可能な熱交換器用チ
ューブとその製造方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is suitable for use in heat exchangers such as radiators, heater cores, condensers (refrigerant condensers) and evaporators of automobiles, and particularly for condensers in which a high-pressure medium (refrigerant or hot medium) flows. Further, the present invention relates to a heat exchanger tube that can be used as a heat exchanger for home appliances or commercial heating / cooling equipment, and a method for manufacturing the same.

【０００２】[0002]

【従来の技術】熱交換器にはラジエター、ヒータコア、
コンデンサ、エバポレータ等各種のものがある。そのう
ちコンデンサはエアコンの圧縮器で圧縮された高圧（通
常は５０〜６０Ｋｇ／ｃｍ2 ）の冷媒を図１４（ａ）
（ｂ）に示すよう２本のパイプＡ、Ｂ間に設けた複数の
チューブＣ内に流して放熱させて同冷媒を低温高圧の冷
却液にし、このとき発生する熱がチューブＣに伝達さ
れ、チューブＣからコルゲートフィンＤに伝達され、コ
ルゲートフィンＤに送られた風によって外部に放散され
るようにしてある。2. Description of the Related Art A heat exchanger includes a radiator, a heater core,
There are various types such as condensers and evaporators. In the condenser, the high-pressure (normally 50-60 kg / cm 2 ) refrigerant compressed by the compressor of the air conditioner is used as shown in FIG.
As shown in (b), the refrigerant flows into a plurality of tubes C provided between the two pipes A and B and radiates heat to make the same refrigerant a low-temperature and high-pressure coolant. The heat generated at this time is transmitted to the tubes C, The air is transmitted from the tube C to the corrugated fins D, and is radiated to the outside by the wind sent to the corrugated fins D.

【０００３】図１４（ａ）の２本のパイプＡ、Ｂは同じ
構造のものであり、いずれも内部が仕切り板Ｅにより仕
切られて、図１４（ｂ）のように左側のパイプＡから送
り出される冷媒が上段の複数本のチューブＣに供給さ
れ、それらのチューブＣから他方（右側）のパイプＢに
送り出され、同パイプＢ内に送り込まれた冷媒はそのパ
イプＢ内の下方の仕切り板Ｅにより下方への流れが阻止
されて前記チューブＣより下段のチューブＣに送られ、
そのチューブＣからパイプＡに送り戻され、その冷媒は
更に下段のチューブＣに送り出されて多数本のチューブ
Ｃ内を蛇行しながら流れるようにしてある。この場合、
冷媒は上流（上段）ではガス（気体）であるが下流（下
段）に流れるにつれて液化して冷媒の体積が小さくなる
ので、通常は、各段におけるチューブＣの本数を下段に
なるほど少なくしてある。また、パイプＡ、Ｂの長手方
向一端には開口部を閉じるキャップＥが取付けられ、他
端にはホース等を繋ぐための継ぎ手Ｆが取付けられてな
る。The two pipes A and B in FIG. 14 (a) have the same structure, and both of them are partitioned by a partition plate E and sent out from the left pipe A as shown in FIG. 14 (b). Is supplied to the upper plurality of tubes C, and is sent out from the tubes C to the other (right) pipe B, and the refrigerant sent into the pipe B is supplied to the lower partition plate E in the pipe B. Is prevented from flowing downward, and sent to a tube C below the tube C,
The refrigerant is sent back from the tube C to the pipe A, and the refrigerant is sent out to the lower tube C to flow in a meandering manner in the many tubes C. in this case,
The refrigerant is a gas (gas) in the upstream (upper stage), but liquefies as the refrigerant flows downstream (lower stage), and the volume of the refrigerant becomes smaller. Therefore, the number of tubes C in each stage is generally reduced as the lower stage becomes lower. . A cap E for closing the opening is attached to one end of the pipes A and B in the longitudinal direction, and a joint F for connecting a hose or the like is attached to the other end.

【０００４】この種の熱交換器のチューブＣは冷媒の放
熱性を高め、チューブの耐圧強度を確保するために、内
部を図１２、図１３に示す様に区画壁Ｇで仕切って２以
上の通路Ｈを形成するのが一般的である。ちなみに図１
２のチューブＣはアルミ材を引き抜き成形して扁平なチ
ューブ状に形成すると同時に区画壁Ｇをも形成して２以
上の通路Ｈを形成してあり、図１３のチューブＣはアル
ミ板を扁平なチューブ状に折曲げてその内部に波状の区
画壁Ｇを挟み（インナーフィンを入れる）、ロー付けす
ると共にチューブ状に折曲げたアルミ板の縁を重ねる
か、アルミ板の一方の縁を折曲げて他方の縁の上に重ね
て閉塞してある。In order to enhance the heat radiation of the refrigerant and to ensure the pressure resistance of the tube, the inside of the tube C of this type of heat exchanger is divided by a partition wall G as shown in FIGS. Generally, a passage H is formed. By the way, Figure 1
The tube C of No. 2 is formed by drawing out an aluminum material into a flat tube shape, and at the same time, also forms a partition wall G to form two or more passages H. The tube C of FIG. It is bent into a tube and sandwiches the corrugated partition wall G inside (with inner fins), brazed and overlaps the edge of the aluminum plate bent into a tube, or bends one edge of the aluminum plate Over the other edge.

【０００５】この種の熱交換器ではパイプＡ、Ｂ間に取
り付けられる複数本のチューブＣへの媒体の流れを均一
化する必要があり、そのためにはパイプＡ、Ｂのチュー
ブ差込み孔ＩへのチューブＣの差込み長を一定に揃える
必要がある。In this type of heat exchanger, it is necessary to equalize the flow of the medium to a plurality of tubes C attached between the pipes A and B. For this purpose, it is necessary to insert the pipes A and B into the tube insertion holes I. It is necessary to make the insertion length of the tube C uniform.

【０００６】そこで図１２のチューブＣは、その幅方向
両外側に同チューブＣの長手方向に沿って突条Ｊを突設
し、その突条Ｊの長手方向両端を一定長Ｌだけ切除し
て、切除された部分の端面をストッパーＫとし、そのス
トッパーＫがパイプＡ、Ｂのチューブ差込み孔Ｉへの差
込み時にパイプＡ、Ｂの周壁に突き当たって、チューブ
Ｃがそれ以上差込まれないようにしてある。Therefore, the tube C shown in FIG. 12 has projecting ridges J projecting along the longitudinal direction of the tube C on both outer sides in the width direction, and cutting both ends of the projecting J in the longitudinal direction by a predetermined length L. The end face of the cut portion is used as a stopper K. The stopper K collides with the peripheral wall of the pipes A and B when the pipes A and B are inserted into the tube insertion holes I so that the tube C is not inserted any more. It is.

【０００７】図１３のチューブＣは、チューブＣを形成
する際にその幅方向両外側に突出するように形成される
閉塞部Ｍの長手方向両端を一定長Ｌだけ切除して、切除
された部分の端面をストッパーＫとし、そのストッパー
ＫがパイプＡ、Ｂのチューブ差込み孔Ｉへの差込み時に
パイプＡ、Ｂの周壁に突き当たって、チューブＣがそれ
以上差込まれないようにしてある。The tube C shown in FIG. 13 is formed by cutting both ends in the longitudinal direction of a closed portion M formed so as to protrude to both outer sides in the width direction when the tube C is formed, and cutting the tube C by a predetermined length L. Is used as a stopper K. The stopper K abuts the peripheral walls of the pipes A and B when the pipes A and B are inserted into the tube insertion holes I, so that the tube C is not inserted any more.

【０００８】前記のパイプＡ、Ｂには図１３の様な丸パ
イプもあるが、図１２の様に２つの半割状のパイプ部材
Ｎ、Ｏを組合わせたパイプもある。As the pipes A and B, there are round pipes as shown in FIG. 13, and as shown in FIG. 12, there is also a pipe in which two half-shaped pipe members N and O are combined.

【０００９】前記のパイプＡ、Ｂと、そのチューブ差込
み孔Ｉに差込まれたチューブＣと、チューブＣ間に配置
されたコルゲートフィンＤとは、組立て後に加熱処理さ
れてロー付けされており、このとき図１３の波状の区画
壁Ｇもチューブ状に折曲げたアルミ板に同時にロー付け
される。また、パイプＡ、Ｂが図１２のように２つのパ
イプ部材Ｎ、Ｏを組合わせたものの場合は、両パイプ部
材Ｎ、Ｏは通常はチューブＣとコルゲートフィンＤとの
ロー付け時に同時にロー付けされる。The pipes A and B, the tube C inserted into the tube insertion hole I, and the corrugated fin D disposed between the tubes C are heated and brazed after assembly, At this time, the corrugated partition wall G in FIG. 13 is also simultaneously brazed to the aluminum plate bent in a tube shape. When the pipes A and B are a combination of two pipe members N and O as shown in FIG. 12, both pipe members N and O are usually brazed simultaneously when the tube C and the corrugated fin D are brazed. Is done.

【００１０】[0010]

【発明が解決しようとする課題】図１２、１３のチュー
ブはいずれも機能的には特に問題はないが、どちらも製
造に手間とコストがかかるという難点があった。The tubes shown in FIGS. 12 and 13 have no problem in terms of their functions, but both have a problem that the production is troublesome and costly.

【００１１】本発明の目的は製造が容易で、製造コスト
の安価な熱交換器用チューブとその製造方法を提供する
ことにある。An object of the present invention is to provide a heat exchanger tube which is easy to manufacture and inexpensive to manufacture, and a method for manufacturing the same.

【００１２】[0012]

【課題を解決するための手段】本発明のうち請求項１の
熱交換器用チューブは、図２の様にロー材１２が皮膜さ
れているか又はされていない平板１の片面に、図３、図
７（ｂ）の様に複数の凸条２と凹条３とが間隔をあけて
形成された凹凸平板４を、図１、図２の様に凸条２を内
側にしてチューブ状に折曲げて凸条２同士を、又は図７
（ａ）の様に凸条２と凹条３を突合わせて、内側に複数
の区画壁５とそれら区画壁５で区画された媒体通路６と
を形成し、折曲げた凹凸平板４の幅方向両端部７、８を
閉塞してなるものである。The heat exchanger tube according to the first aspect of the present invention comprises a flat plate 1 coated with or not coated with a brazing material 12 as shown in FIG. An uneven flat plate 4 in which a plurality of convex stripes 2 and concave stripes 3 are formed at intervals as shown in FIG. 7B is bent into a tube shape with the convex stripes 2 inside as shown in FIGS. 7 and FIG.
As shown in (a), the ridges 2 and the valleys 3 are abutted to form a plurality of partition walls 5 and a medium passage 6 partitioned by the partition walls 5, and the width of the bent flat plate 4 is bent. Both ends 7, 8 in the direction are closed.

【００１３】本発明のうち請求項２の熱交換器用チュー
ブは、図２の様にロー材１２が皮膜されているか又はさ
れていない平板１の片面に、図５（ａ）の様に複数の凸
条２と凹条３を間隔をあけて形成すると共に、それらが
形成されていない平面部（１３）をも形成した凹凸平板
（４）を、図５（ｂ）の様に凸条（２）が内側になるよ
うにチューブ状に折曲げて凸条（２）と平面部（１３）
とを突合わせ、同凹凸平板（４）の幅方向両端部を閉塞
して、内側に複数の区画壁（５）とそれら区画壁（５）
で区画された媒体通路（６）とを形成し、折り曲げた凹
凸平板（４）の幅方向両端部（７、８）を閉塞してなる
ものである。A heat exchanger tube according to a second aspect of the present invention comprises a plurality of flat plates 1 coated or uncoated with a brazing material 12 as shown in FIG. As shown in FIG. 5 (b), the ridges (2) and the ridges (3) are formed at intervals, and the flat plate (4) on which the flat part (13) where they are not formed is also formed is formed as shown in FIG. ) Is bent in the shape of a tube so that it is on the inside, and the ridge (2) and the flat portion (13)
And the both ends of the flat plate (4) in the width direction are closed, and a plurality of partition walls (5) and the partition walls (5) are provided inside.
And a medium passage (6) partitioned by the above, and both ends (7, 8) in the width direction of the bent uneven plate (4) are closed.

【００１４】本発明のうち請求項３の熱交換器用チュー
ブは、図１の様にチューブ状に折曲げた凹凸平板４の幅
方向外側面の長手方向端側に、熱交換器のパイプへの差
込み長を規制するストッパー９を設けたものである。A heat exchanger tube according to a third aspect of the present invention is provided with a heat exchanger pipe on the longitudinal end of the widthwise outer surface of the concavo-convex plate 4 bent into a tube shape as shown in FIG. A stopper 9 for regulating the insertion length is provided.

【００１５】本発明のうち請求項４の熱交換器用チュー
ブは、図４の様に平板１の幅方向両端部７、８の長手方
向両端部を切断除去して切欠き部１０をも形成して凹凸
平板４とし、その凹凸平板４をチューブ状に折曲げて幅
方向両端部７、８を閉塞し、前記切欠き部１０の端面を
熱交換器のパイプへの差込み長を規制するストッパー９
としたものである。In the heat exchanger tube of the present invention, a notch 10 is also formed by cutting and removing both ends 7 and 8 in the width direction of the flat plate 1 as shown in FIG. A stopper 9 for folding the uneven flat plate 4 into a tube shape to close both ends 7 and 8 in the width direction and restricting the end face of the notch 10 to the length of insertion into the pipe of the heat exchanger.
It is what it was.

【００１６】本発明のうち請求項５の熱交換器用チュー
ブの製造方法は、ロール状に巻かれている原反から連続
的に引出される平板１又は一枚づつ独立した平板１（図
３）又は複数枚連続した平板１（図１０）の片面に、複
数の凸条２と凹条３とを間隔をあけて形成して凹凸平板
４とし、その凹凸平板４を凸条２が内側になる様にチュ
ーブ状に折り曲げて、凸条２同士を又は凸条２と凹条３
を突合わせて内部に複数の区画壁５を形成すると共にそ
れら区画壁５で区画された媒体通路６を形成し、折り曲
げた凹凸平板４の幅方向両端部７、８を閉塞してチュー
ブ２０を形成する製造方法である。According to the method for manufacturing a tube for a heat exchanger of the present invention, the flat plate 1 which is continuously drawn out from a roll-shaped raw material or an independent flat plate 1 one by one (FIG. 3). Alternatively, on one surface of a plurality of continuous flat plates 1 (FIG. 10), a plurality of convex stripes 2 and concave stripes 3 are formed at an interval to form a concave and convex flat plate 4, and the convex and concave flat plate 4 is located on the inner side. In the form of a tube so that the ridges 2 are connected to each other or the ridges 2 and
And a plurality of partition walls 5 are formed therein, and a medium passage 6 partitioned by the partition walls 5 is formed. Both ends 7 and 8 in the width direction of the bent uneven plate 4 are closed to form a tube 20. It is a manufacturing method to form.

【００１７】本発明のうち請求項６の熱交換器用チュー
ブの製造方法は、ロール状に巻かれている原反から連続
的に引出される平板１又は一枚づつ独立した平板１又は
複数枚連続した平板１の片面に複数の凸条２と凹条３と
を間隔をあけて形成すると共に、それらが形成されてい
ない平面部１３（図５ａ）をも形成して凹凸平板４と
し、その凹凸平板４を凸条２を内側にしてチューブ状に
折り曲げて、凸条２と平面部１３とを突合わせて内部に
複数の区画壁５を形成すると共にそれら区画壁５で区画
された媒体通路６を形成し、折り曲げた凹凸平板４の幅
方向両端部７、８を閉塞してチューブ２０を形成する製
造方法である。According to a sixth aspect of the present invention, there is provided a method for manufacturing a tube for a heat exchanger, comprising: a flat plate which is continuously drawn from a raw material wound into a roll; A plurality of convex stripes 2 and concave stripes 3 are formed on one side of the flat plate 1 at intervals, and a flat portion 13 (FIG. 5a) where they are not formed is also formed to form a flat plate 4 having irregularities. The flat plate 4 is bent into a tube shape with the ridges 2 inside, and the ridges 2 and the flat portion 13 are abutted to form a plurality of partition walls 5 therein, and the medium passage 6 partitioned by the partition walls 5. This is a manufacturing method in which both ends 7 and 8 in the width direction of the bent flat plate 4 are closed to form the tube 20.

【００１８】本発明のうち請求項７の熱交換器用チュー
ブの製造方法は、ロール状に巻かれている原反から連続
的に引出される平板１（図６）又は複数枚連続した平板
１（図１０）の片面に、複数の凸条２と凹条３とを間隔
をあけて形成して凹凸平板４とし、その凹凸平板４を切
断分離して図４のように一枚にしてから、凸条２が内側
になる様にチューブ状に折り曲げて、凸条２同士を又は
凸条２と凹条３を突合わせて内部に複数の区画壁５を形
成すると共にそれら区画壁５で区画された媒体通路６を
形成し、折り曲げた凹凸平板４の幅方向両端部７、８を
閉塞してチューブ２０を形成する製造方法である。According to the method for manufacturing a tube for a heat exchanger of the present invention, the flat plate 1 (FIG. 6) or a plurality of continuous flat plates 1 (FIG. 6) continuously drawn from a roll-shaped raw material. On one side of FIG. 10), a plurality of convex stripes 2 and concave stripes 3 are formed at intervals to form an uneven flat plate 4, and the uneven flat plate 4 is cut and separated into one sheet as shown in FIG. The ribs 2 are bent into a tube shape so that the ridges 2 are on the inside, and the ridges 2 or the ridges 2 and the concave ridges 3 are abutted to form a plurality of partition walls 5 inside and are partitioned by the partition walls 5. This is a manufacturing method in which a medium passage 6 is formed, and both ends 7 and 8 in the width direction of the bent uneven plate 4 are closed to form a tube 20.

【００１９】本発明のうち請求項８の熱交換器用チュー
ブの製造方法は、ロール状に巻かれている原反から連続
的に引出される平板１又は複数枚連続した平板１の片面
に複数の凸条２と凹条３とそれらが形成されない平面部
１３を形成して凹凸平板４とし、その凹凸平板４を図４
のように切断分離して一枚にしてから、凸条２を内側に
してチューブ状に折り曲げて、凸条２と平面部１３とを
突合わせて内部に複数の区画壁５を形成すると共にそれ
ら区画壁５で区画された媒体通路６を形成し、折り曲げ
た凹凸平板４の幅方向両端部７、８を閉塞してチューブ
２０を形成する製造方法である。In the method of manufacturing a tube for a heat exchanger according to claim 8 of the present invention, a plurality of flat plates 1 or a plurality of continuous flat plates 1 continuously drawn from a roll-shaped raw material are provided. The ridges 2 and the valleys 3 and the flat part 13 where they are not formed are formed to form an uneven flat plate 4.
And cut into a single piece as described above, and then bent into a tube shape with the ridge 2 inside and the plurality of partition walls 5 formed inside by abutting the ridge 2 and the flat portion 13. This is a manufacturing method in which a medium passage 6 partitioned by a partition wall 5 is formed, and both ends 7 and 8 in the width direction of the bent uneven flat plate 4 are closed to form a tube 20.

【００２０】本発明のうち請求項９の熱交換器用チュー
ブの製造方法は、凹凸平板４をチューブ状に折り曲げて
その幅方向両端部７、８の一方を他方の外側に重ねて閉
塞して、図１のように閉塞部２１が外側に突出するチュ
ーブ２０を形成し、同閉塞部２１の長手方向両端側を切
断除去して熱交換器のパイプへ差込み可能な差込み部２
２を形成すると共にその切断端面をパイプへの差込み長
を規制するストッパー９とする製造方法である。In the method for manufacturing a heat exchanger tube according to the ninth aspect of the present invention, the concave and convex flat plate 4 is bent into a tube shape, and one of both ends 7 and 8 in the width direction is overlapped with the other outside and closed. As shown in FIG. 1, a tube 20 having a closed portion 21 protruding outward is formed, and both ends in the longitudinal direction of the closed portion 21 are cut and removed, and the insertion portion 2 can be inserted into a pipe of a heat exchanger.
2 is a manufacturing method in which a cut end face is used as a stopper 9 for regulating a length of insertion into a pipe.

【００２１】本発明のうち請求項１０の熱交換器用チュ
ーブの製造方法は、平板１の幅方向両端部７、８の長手
方向両端側を切断除去して切欠き部１０（図４〜６）も
形成して凹凸平板４とし、その凹凸平板４を、チューブ
状に折曲げて前記幅方向両端部７、８を閉塞すると共に
前記切欠き部１０の端面を熱交換器のパイプのチューブ
差込み孔への差込み長を規制するストッパー９とする製
造方法である。According to a tenth aspect of the present invention, in the method for manufacturing a tube for a heat exchanger, both ends in the longitudinal direction of both ends 7 and 8 in the width direction of the flat plate 1 are cut and removed, and the notch 10 (FIGS. 4 to 6). The uneven plate 4 is bent into a tube shape to close both ends 7 and 8 in the width direction, and the end face of the notch 10 is inserted into a tube insertion hole of a pipe of a heat exchanger. This is a manufacturing method in which a stopper 9 for regulating the length of insertion into the stopper 9 is provided.

【００２２】[0022]

【発明の実施の形態１】図１は本発明の熱交換器用チュ
ーブの実施の形態を示したものである。この熱交換器用
チューブＣは図３の様に平板１の片面に複数の凸条２と
凹条３と、凸条２も凹条３も形成されていない折曲部３
１が形成された凹凸平板４を扁平なチューブ状に折曲げ
て形成したものである。FIG. 1 shows an embodiment of a heat exchanger tube according to the present invention. As shown in FIG. 3, this heat exchanger tube C has a plurality of ridges 2 and recesses 3 on one side of a flat plate 1 and a bent portion 3 on which neither the ridges 2 nor the recesses 3 are formed.
1 is formed by bending the concave and convex flat plate 4 formed with 1 into a flat tube shape.

【００２３】図３の平板１は図２（ｂ）のようにアルミ
製の基板１１の両面にロー材１２が設けられているクラ
ッド材であり、その片面に複数の細長の凸条２と凹条３
を平板１の長手方向に沿って形成すると共に、平板１の
幅方向に交互に形成し、平板１の幅方向中央部に幅の広
い折曲部３１を形成して凹凸平板４としてある。The flat plate 1 shown in FIG. 3 is a clad material in which a brazing material 12 is provided on both surfaces of an aluminum substrate 11 as shown in FIG. 2 (b), and a plurality of elongated ridges 2 and concaves are formed on one surface thereof. Article 3
Are formed along the longitudinal direction of the flat plate 1 and alternately formed in the width direction of the flat plate 1, and a wide bent portion 31 is formed at the center of the flat plate 1 in the width direction to form an uneven flat plate 4.

【００２４】この凹凸平板４を突条２に形成されている
面を内側にして、例えばロール成形により折曲部３１の
折曲軸Ｘ−Ｘより折曲げて、図１、図２（ａ）の様にチ
ューブ状にし、対向する凸条２同士を突合わせて区画壁
５を形成すると共にそれら区画壁５により区画された媒
体通路６を形成し、凹凸平板４の幅方向両端部７、８を
閉塞して扁平なチューブ２０としてある。前記媒体通路
６はチューブ２０の長手方向に貫通している。また、チ
ューブ状に折り曲げた凹凸平板４の幅方向両端部７、８
は、その一方を図２（ｂ）のように他方の外側に重ねて
閉塞してチューブ２０の外側に突出する閉塞部２１を形
成してある。このチューブ２０は加熱処理することによ
り凸条２の突合わせ面同士や閉塞部２１がロー付けされ
て機密性が確保され、チューブ２０の内側の媒体通路６
内を流れる高圧（例えば５０〜６０ｋｇ／ｃｍ2 ）の冷
媒が外部に漏れないようになる。チューブ２０は図９の
ようにパイプＡのチューブ差込み孔Ｉに差し込み、更
に、チューブ２０間にコルゲートフィンＤを配置してか
ら加熱処理して、チューブ２０内の凸条２の突合わせ面
同士や閉塞部２１を、パイプＡとチューブ２０とコルゲ
ートフィンのロー付け時に同時にロー付けして機密性を
確保する。The uneven plate 4 is bent from the bending axis XX of the bending portion 31 by, for example, roll forming, with the surface formed on the ridge 2 facing inward. In the same manner, the partitioning wall 5 is formed by abutting the opposing ridges 2 with each other, and the medium passage 6 partitioned by the partitioning wall 5 is formed. The tube 20 is closed and flat. The medium passage 6 extends through the tube 20 in the longitudinal direction. Further, both ends 7 and 8 in the width direction of the uneven plate 4 bent into a tube shape.
In FIG. 2 (b), one is overlapped on the outside of the other and closed to form a closed portion 21 protruding outside the tube 20. The tube 20 is heated so that the abutting surfaces of the ridges 2 and the closing portion 21 are brazed to secure the airtightness, and the medium passage 6 inside the tube 20 is heated.
The high-pressure (for example, 50 to 60 kg / cm 2 ) refrigerant flowing inside does not leak to the outside. The tube 20 is inserted into the tube insertion hole I of the pipe A as shown in FIG. 9, and furthermore, the corrugated fins D are arranged between the tubes 20 and then subjected to a heat treatment, so that the abutting surfaces of the ridges 2 in the tube 20 and The closing part 21 is brazed at the same time as the brazing of the pipe A, the tube 20 and the corrugated fin to secure confidentiality.

【００２５】図１のＡ−Ａ断面図である図２（ａ）から
明らかな様に、図１のチューブは上下に突き合わされる
突条２のうち一方の突条２の幅を他方より広くして、突
条２同士の突合わせを容易にしてある。As is clear from FIG. 2A, which is a cross-sectional view taken along the line AA in FIG. 1, the tube of FIG. 1 has one of the ridges 2 butt up and down wider than the other. Thus, the ridges 2 are easily butted with each other.

【００２６】図１の閉塞部２１はチューブ２０の長手方
向に沿って連続して形成されているが、その長手方向両
端部は図１の様に所定長Ｌだけ切除して、図９の様にパ
イプＡのチューブ差込み孔Ｉへ差込み可能な差込み部２
２を形成すると共に、その切断面をストッパー９として
ある。このストッパー９はチューブ２０の差込み部２２
を図９のようにパイプＡのチュ−ブ差込み孔Ｉに差し込
むと、パイプＡの周壁に突き当たってそれ以上は差し込
まれないようにするものである。従って、多数本のチュ
ーブ２０の閉塞部２１の切断長Ｌを一定にして、それら
チューブ２０の長手方向端面からストッパー９までの長
さ（差込み部２２の長さ）を一定にすれば、パイプＡへ
の各チューブＣの差込み長が一定になる。The closing portion 21 shown in FIG. 1 is formed continuously along the longitudinal direction of the tube 20, and both ends in the longitudinal direction are cut off by a predetermined length L as shown in FIG. Part 2 that can be inserted into tube insertion hole I of pipe A
2 and the cut surface is used as a stopper 9. This stopper 9 is inserted into the insertion portion 22 of the tube 20.
Is inserted into the tube insertion hole I of the pipe A as shown in FIG. 9 so as to abut against the peripheral wall of the pipe A so as not to be inserted any more. Therefore, if the cut length L of the closed portions 21 of the many tubes 20 is fixed and the length from the longitudinal end surfaces of the tubes 20 to the stopper 9 (the length of the insertion portion 22) is fixed, the pipe A The insertion length of each tube C into the tube becomes constant.

【００２７】[0027]

【発明の実施の形態２】実施の形態１ではチューブ状に
折り曲げてから閉塞部２１の長手方向端部を切除してス
トッパー９を形成してあるが、本発明では図４の様に凹
凸平板４の長手方向両端部で且つ幅方向両端部の四角を
切除して切欠き部１０を形成し、その凹凸平板４を折曲
軸Ｘ−Ｘから図１の様に扁平なチューブ状に折曲げて閉
塞部２１を形成すると、切欠き部１０の端面が自動的に
ストッパー９となるようにすることもできる。Second Embodiment In the first embodiment, the stopper 9 is formed by bending the tube into a tubular shape and then cutting off the longitudinal end of the closing portion 21. However, in the present invention, as shown in FIG. The notch 10 is formed by cutting off the squares at both ends in the longitudinal direction and both ends in the width direction of 4, and the uneven plate 4 is bent from the bending axis XX into a flat tube shape as shown in FIG. When the closing portion 21 is formed, the end face of the cutout portion 10 can automatically serve as the stopper 9.

【００２８】[0028]

【発明の実施の形態３】図５（ｂ）は本発明の熱交換器
用チューブの第３の実施の形態を示したものである。こ
の熱交換器用チューブは同図（ａ）の様に多数枚連続し
ている平板１の幅方向中央部を折曲軸Ｘ−Ｘとし、その
左側半分の片面に複数本の凸条２と凹条３とを交互に形
成し、右半分を凸条２も凹条３も形成されていない平面
部１３とした凹凸平板４を、連結部２５から切断して一
枚づつ分離し、その折曲軸Ｘ−Ｘからチューブ状に折曲
げて凸条２と平面部１３とを対向させて突合わせて凸条
２を区画壁５とし、その区画壁５の横に媒体通路６を形
成したものである。この場合、凹凸平板４の長手方向両
端部で且つ幅方向両端部の４角を予め切除して切欠き部
１０を形成しておき、その凹凸平板４を折曲軸Ｘ−Ｘか
ら図１の様に扁平なチューブ状に折曲げ、凹凸平板４の
幅方向両端部７、８を重ねて閉塞部２１を形成すると、
閉塞部２１の長手方向端部に自動的にストッパー９が形
成されると共に熱交換器のパイプＡのチューブ差込み孔
Ｉへ差込み可能な差込み部２２が形成されるようにした
ものである。Third Embodiment FIG. 5B shows a third embodiment of the heat exchanger tube of the present invention. This heat exchanger tube has a bending axis XX at the center in the width direction of a plurality of continuous flat plates 1 as shown in FIG. 3 are alternately formed, and the right half is a flat plate 13 having a flat portion 13 on which neither the ridge 2 nor the ridge 3 is formed. The flat plate 4 is cut from the connecting portion 25 and separated one by one. The ridge 2 is bent into a tube shape from −X, and the ridge 2 and the flat portion 13 are opposed to each other and abutted to form the ridge 2 as a partition wall 5, and a medium passage 6 is formed beside the partition wall 5. In this case, the notch 10 is formed by cutting in advance the corners at both ends in the longitudinal direction and both ends in the width direction of the uneven plate 4 and the uneven plate 4 is cut from the bending axis XX as shown in FIG. When the closed portion 21 is formed by bending both ends 7 and 8 in the width direction of the uneven plate 4 into a flat tube shape,
The stopper 9 is automatically formed at the longitudinal end of the closing portion 21 and the insertion portion 22 that can be inserted into the tube insertion hole I of the pipe A of the heat exchanger is formed.

【００２９】[0029]

【発明の実施の形態４】図７（ａ）は本発明の熱交換器
用チューブの第４の実施の形態を示したものである。こ
の熱交換器用チューブは平板１の片面に複数の凸条２と
凹条３を形成し、隣接する凸条２間の間隔を図３、４の
凸条２間の間隔の約２倍の広さにし、凸条２の高さを図
３、４の凸条２の高さの約２倍とし、この凹凸平板４を
突条２が内側になる様に折曲げて扁平なチューブ状に形
成したものである。この場合、図７（ｂ）の凹凸平板４
の左半分に形成された凸条２と右半分に形成された凸条
２とが、図７（ａ）に示すように交互に配置されて区画
壁５が形成され、その区画壁５の横に媒体通路６が形成
されている。Embodiment 4 FIG. 7 (a) shows a fourth embodiment of a heat exchanger tube according to the present invention. In this heat exchanger tube, a plurality of ridges 2 and recesses 3 are formed on one surface of a flat plate 1, and the distance between adjacent ridges 2 is about twice as large as the distance between ridges 2 in FIGS. The height of the ridge 2 is about twice the height of the ridge 2 in FIGS. 3 and 4, and the flat plate 4 is bent so that the ridge 2 is on the inside to form a flat tube. It was done. In this case, the uneven plate 4 shown in FIG.
7A, the ridges 2 formed on the left half and the ridges 2 formed on the right half are alternately arranged as shown in FIG. Is formed with a medium passage 6.

【００３０】[0030]

【発明の実施の形態５】図８（ａ）、（ｂ）は本発明の
熱交換器用チューブの第５の実施の形態を示したもので
ある。図３、図４の凹凸平板４の凸条２は一本おきに幅
を変えて、チューブ状に折り曲げた時に幅の異なる凸条
２同士が突き合わされるようにしてあるが、図８
（ａ）、（ｂ）のチューブ２０は凸条２を全て同じ幅に
したものである。また、図８（ａ）ではチューブ２０の
幅方向両側面の長手方向端部寄りの一部を外側に突設さ
せてストッパー９とし、図８（ｂ）ではチューブの幅方
向側面の長手方向端部を切除するか押し潰すかして一段
窪ませてストッパー９とし、また、長手方向端部に熱交
換器のパイプＡのチューブ差込み孔Ｉへ差込み可能な差
込み部２２を形成してある。Embodiment 5 FIGS. 8A and 8B show a heat exchanger tube according to a fifth embodiment of the present invention. The width of the ridges 2 of the uneven flat plate 4 shown in FIGS. 3 and 4 is changed every other line so that the ridges 2 having different widths are abutted when bent into a tube.
The tubes 20 in (a) and (b) have the same width of the ridges 2. In FIG. 8A, a portion of the tube 20 near the longitudinal end on both sides in the width direction is projected outward to form a stopper 9, and in FIG. 8B, the longitudinal end of the tube in the width direction is provided. The part is cut off or crushed to make a one-step depression to form a stopper 9, and an insertion part 22 that can be inserted into the tube insertion hole I of the pipe A of the heat exchanger is formed at the longitudinal end.

【００４０】[0040]

【本発明の製造方法の実施の形態１】本発明の熱交換器
用チューブの製造方法の実施の形態の第１の例を以下に
説明する。本発明のチューブを製造するには例えばアル
ミ製又は他の金属製の平板１を使用する。この平板１は
図３、図４の様に独立した一枚の板でもよく、図１１の
様に複数枚連続したものでもよい。また、帯状のアルミ
材がロール状に巻かれている原反から図５、図６の様に
引出した連続したアルミ材（平板）でもよい。いずれの
場合も平板１は図２（ｂ）の様にアルミ基板１１の両面
又は片面にロー材１２が皮膜されているクラッド材が適
する。[First Embodiment of Manufacturing Method of the Present Invention] A first example of an embodiment of a method of manufacturing a tube for a heat exchanger of the present invention will be described below. In order to manufacture the tube of the present invention, for example, a flat plate 1 made of aluminum or other metal is used. The flat plate 1 may be a single independent plate as shown in FIGS. 3 and 4, or a plurality of continuous plates as shown in FIG. Alternatively, a continuous aluminum material (flat plate) drawn from a raw material in which a belt-like aluminum material is wound in a roll shape as shown in FIGS. 5 and 6 may be used. In any case, the flat plate 1 is preferably a clad material in which the brazing material 12 is coated on both sides or one side of the aluminum substrate 11 as shown in FIG.

【００４１】図３、図４のように独立した平板１の場合
は、ロー材１２が皮膜されている片面を段押し加工し
て、その長手方向に沿って細長の凹条３と凸条２を形成
すると共に、凹条３と凸条２を平板１の幅方向に交互に
形成して凹凸平板４とする。また、凸条２を折曲軸Ｘ−
Ｘを挟んでその両側に４本づつ軸対称となるように間隔
をあけて形成して、凹凸平板４を例えばロール成形によ
り折曲軸Ｘ−Ｘからチューブ状に折り曲げたときに凸条
２同士が突き合うようにしてある。ここで、段押し加工
することにより凸条２と凹条３を同時にしかも連続的に
形成することができる。また、凸条２は図３、図４の様
に幅の広いものと狭いものとを交互に形成して、折曲軸
Ｘ−Ｘから折り曲げたときに幅の狭い凸状２を幅の広い
凸条２に突き合せ易くしてある。平板１の幅方向両部
７、８は凸条２を形成せずに平面にしてあり、しかも一
方の幅方向端部８の幅を他方の幅方向端部７の幅より広
くして、平板１を折曲軸Ｘ−Ｘからチューブ状に折曲げ
たときに、図２（ａ）、（ｂ）に示すように幅方向端部
８を幅方向端部７の外側に重ねて折曲げることができる
ようにしてある。図４の凹凸平板４は４角をプレス切断
とか他の任意の方法により切断してストッパー形成用の
切欠き部１０を形成してある。図３、図４のいずれの場
合も平板１に形成される凸条２の本数は図示した本数に
限定されない。In the case of an independent flat plate 1 as shown in FIGS. 3 and 4, one side on which the brazing material 12 is coated is stepped, and elongated concave and convex strips 3 and 2 are formed along the longitudinal direction. Are formed, and the ridges 3 and the ridges 2 are alternately formed in the width direction of the flat plate 1 to obtain the uneven flat plate 4. Also, the ridge 2 is connected to the bending axis X-
X is sandwiched between the four sides and four are formed at intervals so as to be axially symmetrical. When the flat plate 4 is bent into a tube shape from the bending axis XX by, for example, roll forming, the ridges 2 are formed. I have to face each other. Here, the ridges 2 and the ridges 3 can be formed simultaneously and continuously by performing step pressing. Also, as shown in FIGS. 3 and 4, the ridges 2 are formed alternately with wide and narrow ones, and when bent from the bending axis XX, the narrow ridges 2 are replaced with the wide ridges. It is easy to match with Article 2. The two widthwise portions 7 and 8 of the flat plate 1 are flat without forming the ridges 2, and the width of one widthwise end 8 is wider than the width of the other widthwise end 7. When 1 is bent into a tube shape from the bending axis XX, the width direction end 8 may be folded outside the width direction end 7 as shown in FIGS. 2 (a) and 2 (b). I can do it. The concave and convex flat plate 4 in FIG. 4 is formed by cutting four corners by press cutting or any other method to form a notch 10 for forming a stopper. 3 and 4, the number of the ridges 2 formed on the flat plate 1 is not limited to the illustrated number.

【００４２】前記の段押し加工には例えば図１１（ａ）
に示す様なローラ３０を用いると便利である。このロー
ラ３０は外周面にリング状の突子３１が均一間隔で形成
されると共に突子３１の横に溝３２が形成されている。
一定速度で走行中の平板１にローラ３０を回転させなが
ら押し付けると、ローラ３０の突子３１により平板１に
凹条３が連続的に形成され、同時に、ローラ３０の溝３
２により凸条２が連続的に形成される。In the stepping process, for example, FIG.
It is convenient to use a roller 30 as shown in FIG. The roller 30 has ring-shaped protrusions 31 formed on the outer peripheral surface at uniform intervals, and a groove 32 formed beside the protrusions 31.
When the roller 30 is pressed against the running flat plate 1 at a constant speed while rotating, the projections 31 of the roller 30 continuously form the concave stripes 3 in the flat plate 1, and at the same time, the groove 3 of the roller 30.
2, the ridges 2 are continuously formed.

【００４３】段押し加工には図１１（ｂ）に示す様な段
押し装置を使用することもできる。これは回転軸３３に
円盤３４を所望間隔で固定したものである。回転軸３３
を回転させて円盤３４を回転させ、回転中の円盤３４を
一定速度で走行中の平板１に押し付けると、円盤３４に
より平板１に凹条３が連続的に形成され、同時に円盤３
４で押された凹条３間に凸条２が連続的に形成される。
この段押し装置ではいずれかの円盤３４が摩耗したり、
損傷したり下場合は、その円盤３４だけを交換すること
ができる。A stepping device as shown in FIG. 11B can be used for the stepping process. In this, a disk 34 is fixed to a rotating shaft 33 at a desired interval. Rotating shaft 33
Is rotated to rotate the disk 34, and the rotating disk 34 is pressed against the moving flat plate 1 at a constant speed.
The convex ridges 2 are continuously formed between the concave ridges 3 pressed by 4.
In this stepping device, one of the disks 34 is worn,
If damaged or underneath, only the disk 34 can be replaced.

【００４４】図３の凹凸平板４は折曲軸Ｘ−Ｘから例え
ばロール成形により凸条２が内向きになるように折曲げ
て、折曲軸Ｘ−Ｘを挟む両側の凸条２を互いに突き合わ
せて区画壁５を形成すると共に、隣接する区画壁５間に
媒体通路６を形成し、図２の様に凹凸平板４の一方の幅
方向端部８を他方の幅方向端部７の外側に被せて閉塞し
て閉塞部２１を形成する製造方法である。この場合、閉
塞部２１はチューブ２０の長手方向全長に亙って形成さ
れるため、そのままでは図９の様に熱交換器のパイプＡ
のチューブ差込み孔Ｉに差込むことができない。そこ
で、図１のように閉塞部２１の長手方向両端部を切除し
てパイプＡのチューブ差込み孔Ｉに差込み可能な差込み
部２２を形成すると共に、その切除端面をストッパー９
として、チューブ差込み孔Ｉにチューブ２０を差込むと
ストッパー９がパイプＡの周壁に突き当たってそれ以上
差込まれないようにしてある。この場合、多数本のチュ
ーブ２０の端面からストッパー９までの長さを一定にす
ることにより、チューブ差込み孔Ｉに差込まれる多数本
のチューブ２０の差込み長が一定に揃うようにすること
ができる。The flat plate 4 of FIG. 3 is bent from the bending axis XX by, for example, roll forming so that the ridge 2 faces inward, and the ridges 2 on both sides sandwiching the bending axis XX abut each other. A partition wall 5 is formed, and a medium passage 6 is formed between adjacent partition walls 5, and one widthwise end 8 of the uneven plate 4 is placed outside the other widthwise end 7 as shown in FIG. This is a manufacturing method in which the closed portion 21 is formed by being closed by closing. In this case, since the closing portion 21 is formed over the entire length of the tube 20 in the longitudinal direction, the pipe A of the heat exchanger as it is as shown in FIG.
Cannot be inserted into the tube insertion hole I. Therefore, as shown in FIG. 1, both ends in the longitudinal direction of the closing portion 21 are cut off to form an insertion portion 22 that can be inserted into the tube insertion hole I of the pipe A, and the cut end face is formed by the stopper 9.
When the tube 20 is inserted into the tube insertion hole I, the stopper 9 abuts against the peripheral wall of the pipe A and is prevented from being inserted any more. In this case, by making the length from the end faces of the multiple tubes 20 to the stoppers 9 constant, the insertion lengths of the multiple tubes 20 inserted into the tube insertion holes I can be made uniform. .

【００４５】図４の凹凸平板４は平板１に凸条２と凹条
３を形成し、更に平板１の４角にストッパー形成用の切
欠き部１０を形成して、凹凸平板４をその折曲軸Ｘ−Ｘ
からチューブ状に折曲げ、凹凸平板４の一方の幅方向端
部８を他方の幅方向端部７の外側に被せて閉塞部２１を
形成すると、その長手方向両端の切欠き部１０の端面に
ストッパー９が自動的に形成されるようにすると共に、
パイプＡのチューブ差込み孔Ｉに差込み可能な差込み部
２２が形成されるようにしてある。In the uneven plate 4 shown in FIG. 4, a ridge 2 and a concave line 3 are formed on the plate 1, and notches 10 for forming stoppers are formed at four corners of the plate 1, and the uneven plate 4 is folded. Curved axis XX
When the closed portion 21 is formed by covering one width direction end 8 of the uneven flat plate 4 on the outside of the other width direction end 7 and forming a closed portion 21, the end surface of the notch 10 at both ends in the longitudinal direction is formed. While the stopper 9 is formed automatically,
An insertion portion 22 that can be inserted into the tube insertion hole I of the pipe A is formed.

【００４６】[0046]

【本発明の製造方法の実施の形態２】本発明の熱交換器
用チューブの製造方法の実施の形態の第２の例を以下に
説明する。アルミ材がロール条に巻かれている原反から
図６の様にアルミ材を連続して引出して平板１とし、段
押し加工によりその平板１の折曲軸Ｘ−Ｘの左右両側に
対称に凸条２と凹条３とを形成する。この場合、凸条２
と凹条３とを引き出し方向に連続的に形成し、更にプレ
ス加工とか他の加工により平板１の一部を切断除去して
切欠き部１０と分離部２６を形成し、２つの分離部２６
間に連結部２５を形成して、連続する凹凸平板４を形成
する。連続する凹凸平板４はプレス加工とか他の加工方
法により連結部２５から切断して独立した凹凸平板４に
してから、折曲軸Ｘ−Ｘから図１のようにチューブ状に
折曲げて対向する凸条２同士を突き当てて区画壁５と媒
体通路６を形成する製造方法である。このときチューブ
２０に幅方向側面に形成される閉塞部２１の長手方向両
端に、ストッパー９と差込み部２２が自動的に形成され
る。[Embodiment 2 of the manufacturing method of the present invention] A second example of the embodiment of the method of manufacturing a heat exchanger tube of the present invention will be described below. As shown in FIG. 6, the aluminum material is continuously drawn out from the raw material wound on the roll to form a flat plate 1 and is symmetrically protruded on both the left and right sides of the bending axis XX of the flat plate 1 by stepping. The ridge 2 and the concave ridge 3 are formed. In this case, ridge 2
And the concave strip 3 are formed continuously in the pull-out direction, and a part of the flat plate 1 is cut and removed by press working or other processing to form the notch 10 and the separating part 26.
The connecting portion 25 is formed therebetween, and the continuous flat plate 4 is formed. The continuous concavo-convex flat plate 4 is cut from the connecting portion 25 by press working or another processing method to form an independent concavo-convex flat plate 4, and then bent from the bending axis XX into a tube shape as shown in FIG. This is a manufacturing method in which the partition walls 5 and the medium passage 6 are formed by abutting the strips 2 with each other. At this time, the stopper 9 and the insertion portion 22 are automatically formed at both ends in the longitudinal direction of the closing portion 21 formed on the side surface of the tube 20 in the width direction.

【００４７】[0047]

【本発明の製造方法の実施の形態３】本発明の熱交換器
用チューブの製造方法の実施の形態の第３の例を以下に
説明する。アルミ材がロール条に巻かれている原反から
図５（ａ）の様にアルミ材を連続して引出して平板１と
し、段押し加工により平板１の折曲軸Ｘ−Ｘの左側にだ
け連続的に凸条２と凹条３を形成し、右側には凸条２も
凹条３も形成せずに平面のままにして平面部１３とし、
更にプレス加工とか他の加工により平板１の一部を切断
除去して切欠き部１０と分離部２６を形成し、２つの分
離部２６間に連結部２５を形成して、連続する凹凸平板
４を形成する。連続する凹凸平板４はプレス加工とか他
の加工方法により連結部２５から切断して一枚の独立し
た凹凸平板４にしてから、図５（ｂ）のようにチューブ
状に折曲げて凸条２を凹条３に突き当て区画壁５を形成
し、その区画壁５の横に媒体通路６を形成する。この凹
凸平板４の幅方向端部７、８のうち一方の端部８を他方
の端部７の外側に被せて閉塞して閉塞部２１を形成する
と共に、閉塞部２１の長手方向両端にストッパー９と図
５の様にパイプＡのチューブ差込み孔Ｉに差込み可能な
差込み部２２を形成するようにしてある。この場合、図
５（ａ）の凸条２の高さを図３、図４の凸条２の高さの
約２倍にして、図５（ｂ）の凸条２により形成される区
画壁５の高さが図３の様に２つの凸条２が突き合わされ
て形成される区画壁５の高さと同じ高さになるように
し、また、媒体通路６の容積が図３の場合と同じになる
ようにしてある。Third Embodiment of the Manufacturing Method of the Present Invention A third embodiment of the method of manufacturing a heat exchanger tube of the present invention will be described below. As shown in FIG. 5 (a), the aluminum material is continuously pulled out from the raw material wound on the roll strip into a flat plate 1, and is continuously formed only on the left side of the bending axis XX of the flat plate 1 by stepping. The convex stripes 2 and the concave stripes 3 are formed on the right side, and the convex stripes 2 and the concave stripes 3 are not formed on the right side and remain flat to form a flat part 13,
Further, a part of the flat plate 1 is cut and removed by press working or other processing to form a cutout portion 10 and a separating portion 26, and a connecting portion 25 is formed between the two separating portions 26 to form a continuous uneven flat plate 4. To form The continuous concavo-convex flat plate 4 is cut from the connecting portion 25 by press working or another processing method to form one independent concavo-convex flat plate 4, and then bent into a tube shape as shown in FIG. Is formed against the concave streak 3 to form a partition wall 5, and a medium passage 6 is formed beside the partition wall 5. One end 8 of the widthwise ends 7, 8 of the uneven plate 4 is covered with the outside of the other end 7 to form a closed portion 21, and stoppers are provided at both ends in the longitudinal direction of the closed portion 21. As shown in FIGS. 9 and 5, an insertion portion 22 that can be inserted into the tube insertion hole I of the pipe A is formed. In this case, the height of the ridge 2 in FIG. 5A is made about twice the height of the ridge 2 in FIGS. 3 and 4, and the partition wall formed by the ridge 2 in FIG. The height of the medium passage 6 is the same as the height of the partition wall 5 formed by abutting the two ridges 2 as shown in FIG. 3, and the volume of the medium passage 6 is the same as that in FIG. It is made to become.

【００４８】[0048]

【本発明の製造方法の実施の形態４】本発明の熱交換器
用チューブの製造方法の実施の形態の第４の例を以下に
説明する。図１１のように２枚連接されている横長の各
平板１に、その長手方向に沿って凸条２と凹条３とを形
成し、また、プレス加工とか他の加工により切欠き部１
０、分離部２６を形成し、２つの分離部２６間に連結部
２５を形成して凹凸平板４とする。この連続する凹凸平
板４をプレス加工とか他の加工により連結部２５から切
断して独立した一枚の凹凸平板４にしてから、夫々の凹
凸平板４を図１、図２のようにチューブ状に折曲軸Ｘ−
Ｘから凸条２を内側にして折曲げて、凸条２同士を突き
合わせて区画壁５を形成し、その区画壁５の横に媒体通
路６を形成する。また、この凹凸平板４の一方の幅方向
端部８を他方の幅方向端部７の外側に被せて閉塞して閉
塞部２１を形成すると共に、閉塞部２１の長手方向両端
に図９の様にパイプＡのチューブ差込み孔Ｉに差込み可
能な差込み部２２と、その差込みを規制するストッパー
９とを形成するようにした製造方法である。Fourth Embodiment of the Manufacturing Method of the Present Invention A fourth example of the embodiment of the method of manufacturing a heat exchanger tube of the present invention will be described below. As shown in FIG. 11, a protruding line 2 and a concave line 3 are formed on each of two horizontally long flat plates 1 along the longitudinal direction, and the notch 1 is formed by pressing or other processing.
0, a separating portion 26 is formed, and a connecting portion 25 is formed between the two separating portions 26 to obtain the uneven plate 4. This continuous uneven plate 4 is cut from the connecting portion 25 by press working or other processing to form one independent uneven plate 4, and each uneven plate 4 is formed into a tube shape as shown in FIGS. Bending axis X-
The ridges 2 are bent inward from X, and the ridges 2 are abutted to each other to form a partition wall 5, and a medium passage 6 is formed beside the partition wall 5. In addition, one end 8 in the width direction of the concavo-convex flat plate 4 is covered over the outside of the other end 7 in the width direction to form a closed portion 21 and both ends in the longitudinal direction of the closed portion 21 as shown in FIG. This is a manufacturing method in which an insertion portion 22 that can be inserted into the tube insertion hole I of the pipe A and a stopper 9 that regulates the insertion are formed.

【００４９】[0049]

【本発明の製造方法の実施の形態５】本発明のチューブ
は凹凸平板４をチューブ状に折曲げて閉塞部２１を形成
してから、加熱処理して閉塞部２１をロー付けして気密
に閉塞してもよいが、ロー付けしないままで図９のよう
にパイプＡのチューブ差込み孔Ｉに差込み、その後に加
熱処理してチューブ２０をパイプＡにロー付けすると共
に閉塞部２１をロー付けして閉塞するようにすることも
できる。平板１にロー材が塗布されていない場合は、パ
イプＡやチューブ２０のロー付け箇所にロー材を塗布し
てから、パイプＡ、チューブ２０を同時に加熱し、その
ロー材を融解させてロー付けする。[Fifth Embodiment of the Manufacturing Method of the Present Invention] The tube of the present invention is formed by forming the closed portion 21 by bending the concave and convex flat plate 4 into a tube shape, and then heat-treating the closed portion 21 to airtightly. Although it may be closed, it is inserted into the tube insertion hole I of the pipe A without brazing as shown in FIG. 9, and then heat-treated to braze the tube 20 to the pipe A and braze the closing portion 21. It can also be closed. When the brazing material is not applied to the flat plate 1, the brazing material is applied to the brazing point of the pipe A or the tube 20, and then the pipe A and the tube 20 are simultaneously heated, and the brazing material is melted and brazed. I do.

【００５０】[0050]

【発明の効果】本発明の請求項１の熱交換器用チューブ
は、凸条２と凹条３を形成した凹凸平板４をチュー部状
に折曲げて内側に区画壁５と媒体通路６とを形成するの
で、区画壁５と媒体通路６のあるチューブを容易に製作
でき、従来の様に折曲げる板材の内側に波状の区画壁を
挟むとか、アルミ材を引き抜き加工する必要がなく、製
作が容易になる。また、ロー材１２が皮膜されている平
板１を使用すればロー付けが容易になり、製造コストが
低減する。According to the first aspect of the present invention, the tube for a heat exchanger according to the first aspect of the present invention is formed by bending an uneven flat plate 4 having a ridge 2 and a concave ridge 3 into a tube shape and forming a partition wall 5 and a medium passage 6 inside. Since it is formed, a tube having the partition wall 5 and the medium passage 6 can be easily manufactured, and it is not necessary to sandwich the corrugated partition wall inside the plate material to be bent as in the related art or to draw out the aluminum material. It will be easier. Further, if the flat plate 1 coated with the brazing material 12 is used, the brazing becomes easy and the manufacturing cost is reduced.

【００５１】本発明のうち請求項２の熱交換器用チュー
ブは、凸条２と凹条３だけでなく、それらが形成されて
いない平面部１３をも形成した凹凸平板４をチューブ状
に折曲げて凸条２と平面部１３とを突合わせて区画壁５
と媒体通路６とを形成するので、凸条２同士を突き合せ
る場合よりも突合わせが容易になる。また、ロー材１２
が皮膜されている平板１を使用すればロー付けが容易に
なり、製造コストが低減する。According to the second aspect of the present invention, the tube for a heat exchanger is formed by bending an uneven flat plate 4 having not only the ridges 2 and the ridges 3 but also the flat portion 13 on which the ridges 2 and 3 are not formed. The ridge 2 and the flat portion 13 abut each other to define the partition wall 5.
And the medium passage 6, the butting becomes easier than when the ridges 2 are butted together. In addition, the brazing material 12
If the flat plate 1 coated with is used, the brazing becomes easy and the manufacturing cost is reduced.

【００５２】本発明のうち請求項３の熱交換器用チュー
ブは、チューブ状に折曲げた凹凸平板４の幅方向外側の
外周面の長手方向端部にストッパー９が形成されてなる
ので、チューブを熱交換器のパイプのチューブ差込み孔
へ差込むときに、ストッパー９がパイプの周壁に突き当
たるまで差込むだけでパイプへのチューブの差込み長を
一定にすることができる。また、同様のチューブをパイ
プに多数本差込めば、パイプ内へ突出するチューブの長
さは全て均一になり、パイプ内を流れる媒体の流れがス
ムースになる。In the heat exchanger tube according to the third aspect of the present invention, the stopper 9 is formed at the longitudinal end of the outer peripheral surface on the width direction outside of the uneven plate 4 bent in the shape of a tube. When inserting the tube into the tube insertion hole of the pipe of the heat exchanger, the insertion length of the tube into the pipe can be made constant only by inserting the stopper 9 until the stopper 9 comes into contact with the peripheral wall of the pipe. Also, if many similar tubes are inserted into the pipe, the lengths of the tubes projecting into the pipe are all uniform, and the flow of the medium flowing through the pipe is smooth.

【００５３】本発明のうち請求項４の熱交換器用チュー
ブは、平板１に切欠き部１０をも形成し、その凹凸平板
４をチューブ状に折曲げて切欠き部１０の端面をストッ
パー９としたので、凹凸平板４を折曲げてからストッパ
ー９をわざわざ製作する必要が無く、ストッパー９の製
作が容易になり、製造コストも安価になる。According to the heat exchanger tube of the present invention, the notch 10 is also formed in the flat plate 1, and the uneven flat plate 4 is bent into a tube shape so that the end face of the notch 10 is formed with the stopper 9. Therefore, it is not necessary to manufacture the stopper 9 after bending the concave and convex flat plate 4, so that the manufacturing of the stopper 9 is facilitated and the manufacturing cost is reduced.

【００５４】本発明のうち請求項５の熱交換器用チュー
ブの製造方法はロール状に巻かれている原反から連続的
に引出される平板１又は一枚づつ独立した平板１又は複
数枚連続した平板１の片面に、複数の凸条２と凹条３と
を形成した凹凸平板４を折り曲げて凸条２同士、又は凸
条２と凹条３を突合わせて区画壁５と媒体体路６を形成
するので、次のような効果がある。 ．従来の熱交換器用チューブの製造方法の様に、折曲
げる板材の内側に波状の区画壁を挟むとか、アルミ材を
引き抜き加工する必要がなく、製作が容易になる。 ．原反から連続的に引出される平板１を使用すれば、
凹凸平板４を連続的に作ることができ、生産性が向上
し、コストも低減する。In the method for producing a heat exchanger tube according to the fifth aspect of the present invention, the flat plate 1 which is continuously drawn from the raw material wound in a roll or the independent flat plate 1 or a plurality of the flat plates which are successively drawn one by one. A concave and convex flat plate 4 having a plurality of convex stripes 2 and concave stripes 3 formed on one surface of the flat plate 1 is bent, and the convex stripes 2 are joined to each other, or the convex stripes 2 and the concave stripes 3 are abutted to define a partition wall 5 and a medium passage 6. Has the following effects. . Unlike a conventional method for manufacturing a heat exchanger tube, there is no need to sandwich a corrugated partition wall inside a plate to be bent or to draw out an aluminum material, which facilitates manufacture. . If you use the flat plate 1 that is continuously drawn from the raw material,
The concavo-convex flat plate 4 can be continuously formed, thereby improving productivity and reducing costs.

【００５５】本発明のうち請求項６の熱交換器用チュー
ブの製造方法は、ロール状に巻かれている原反から連続
的に引出される平板１又は一枚づつ独立した平板１又は
複数枚連続した平板１の片面に、複数の凸条２と凹条３
を形成するだけでなく、凸条２と凹条３が形成されない
平面部１３を形成して凹凸平板４とし、その凹凸平板４
をチューブ状に折り曲げて凸条２と平面部１３とを突合
わせるようにしたので、凸条２同士を突き合わせる場合
よりも位置合わせが容易になり、制作し易くなる。The method for manufacturing a heat exchanger tube according to claim 6 of the present invention is characterized in that the flat plate 1 is continuously drawn from a roll-shaped raw material, or the flat plate 1 or a plurality of flat plates which are separated one by one. A plurality of convex stripes 2 and concave stripes 3
Not only are formed, but also a flat portion 13 on which the ridges 2 and the concave ridges 3 are not formed is formed as an uneven flat plate 4.
Is bent into a tube shape so that the ridges 2 and the flat portions 13 abut each other, so that the alignment is easier than in the case where the ridges 2 are abutted with each other, and the production becomes easier.

【００５６】本発明のうち請求項７の熱交換器用チュー
ブの製造方法は、ロール状に巻かれている原反から連続
的に引出される平板１又は複数枚連続した平板１の片面
に、複数の凸条２と凹条３とを間隔をあけて形成して凹
凸平板４とし、その凹凸平板４を切断分離して一枚にし
てからチューブ状に折り曲げるので、凹凸平板４を連続
的に作ることができるので生産性が向上し、コストも低
減する。The method for manufacturing a heat exchanger tube according to claim 7 of the present invention is characterized in that the flat plate 1 or a plurality of continuous flat plates 1 continuously drawn from a roll-shaped raw material is provided on one surface thereof. The concave and convex ridges 2 and 3 are formed at an interval to form a concave and convex flat plate 4, and the concave and convex flat plate 4 is cut and separated into one piece and then bent into a tube shape, so that the concave and convex flat plate 4 is continuously produced. Can increase productivity and reduce costs.

【００５７】本発明のうち請求項８の熱交換器用チュー
ブの製造方法は、ロール状に巻かれている原反から連続
的に引出される平板１又は複数枚連続した平板１の片面
に複数の凸条２と凹条３だけでなく平面部１３をも形成
し、その凹凸平板４を切断分離して一枚にしてからチュ
ーブ状に折り曲げるので、凹凸平板４を連続的に作るこ
とができるので生産性が向上し、コストも低減し、しか
も、凸条２同士を突き合わせる場合よりも位置合わせが
容易になり、制作し易くなる。In the method for manufacturing a tube for a heat exchanger according to claim 8 of the present invention, a plurality of flat plates 1 or a plurality of continuous flat plates 1 continuously drawn from a roll-shaped raw material are provided. Since not only the ridges 2 and the ridges 3 but also the flat portion 13 are formed, and the uneven plate 4 is cut and separated into one sheet and then bent into a tube shape, the uneven plate 4 can be continuously formed. The productivity is improved, the cost is reduced, and the alignment is easier than in the case where the ridges 2 are abutted with each other.

【００５８】本発明のうち請求項９の熱交換器用チュー
ブの製造方法は、凹凸平板４をチューブ状に折り曲げて
その幅方向両端部７、８の一方を他方の外側に重ねて閉
塞し、チューブ２０の外側に突出する閉塞部２１の長手
方向両端側を切断除去して熱交換器のパイプへ差込み可
能な差込み部２２を形成すると共にその切断端面をパイ
プへの差込み長を規制するストッパー９とするので、差
込み部２２及びストッパー９の製造が容易になる。According to a ninth aspect of the present invention, in the method for manufacturing a tube for a heat exchanger, the flat plate 4 is bent into a tube shape, and one of the two ends 7 and 8 in the width direction is overlapped with the other outside and closed. A stopper 9 that cuts and removes both ends in the longitudinal direction of a closing portion 21 that protrudes outside of the pipe 20 to form a plug-in portion 22 that can be plugged into a pipe of a heat exchanger, and restricts the cut end face of the plug-in length to the pipe. Therefore, the manufacture of the insertion portion 22 and the stopper 9 is facilitated.

【００５９】本発明のうち請求項１０の熱交換器用チュ
ーブの製造方法は、平板１の幅方向両端部７、８の長手
方向両端側を切断除去して切欠き部１０も形成して凹凸
平板４とし、その凹凸平板４をチューブ状に折曲げて切
欠き部１０の端面をストッパー９とするするので、連続
する平板１を切断して一枚づつに分離するときに同時
に、平板１にプレス加工で切欠き部１０を形成すればス
トッパー９が形成され、トッパー９の形成がより一層容
易になる。According to a tenth aspect of the present invention, there is provided a method of manufacturing a tube for a heat exchanger, comprising cutting and removing both ends in the longitudinal direction of both ends 7 and 8 in the width direction of the flat plate 1 to form notches 10 and forming the notched portion. 4, the flat plate 4 is bent into a tube shape, and the end face of the notch 10 is used as a stopper 9. Therefore, when the continuous flat plates 1 are cut and separated one by one, the flat plate 1 is pressed simultaneously. If the notch 10 is formed by processing, the stopper 9 is formed, and the formation of the topper 9 is further facilitated.

【図面の簡単な説明】[Brief description of the drawings]

【図１】本発明の熱交換器用チューブの実施形態の第１
の例を示す説明図。FIG. 1 is a first embodiment of a heat exchanger tube according to the present invention.
FIG.

【図２】（ａ）は図１の熱交換器用チューブのＡ−Ａ断
面図、（ｂ）は図２（ａ）の部分拡大説明図。2A is a cross-sectional view of the heat exchanger tube taken along line AA of FIG. 1, and FIG. 2B is a partially enlarged explanatory view of FIG. 2A.

【図３】本発明の熱交換器用チューブを製作する凹凸平
板の第１の例の説明図。FIG. 3 is an explanatory view of a first example of an uneven flat plate for manufacturing the heat exchanger tube of the present invention.

【図４】本発明の熱交換器用チューブを製作する凹凸平
板の第２の例の説明図。FIG. 4 is an explanatory view of a second example of the concave and convex flat plate for producing the heat exchanger tube of the present invention.

【図５】（ａ）は本発明の熱交換器用チューブを製作す
る凹凸平板の第３の例の説明図、（ｂ）は同平板で作成
された熱交換器用チューブの斜視図。FIG. 5 (a) is an explanatory view of a third example of an uneven flat plate for manufacturing the heat exchanger tube of the present invention, and FIG. 5 (b) is a perspective view of a heat exchanger tube made of the flat plate.

【図６】本発明の熱交換器用チューブを製作する凹凸平
板の第４の例の説明図。FIG. 6 is an explanatory view of a fourth example of a concave and convex flat plate for producing the heat exchanger tube of the present invention.

【図７】（ａ）は本発明の熱交換器用チューブの第２の
例を示す断面図、（ｂ）は同図（ａ）のチューブの製作
に使用される凹凸平板の断面図。7A is a cross-sectional view showing a second example of the heat exchanger tube of the present invention, and FIG. 7B is a cross-sectional view of an uneven flat plate used for manufacturing the tube of FIG.

【図８】（ａ）は本発明の熱交換器用チューブの第３の
例を示す斜視図、（ｂ）は第４の例を示す斜視図。8A is a perspective view showing a third example of the heat exchanger tube of the present invention, and FIG. 8B is a perspective view showing a fourth example.

【図９】本発明の熱交換器用チューブを熱交換器のパイ
プに差込んだ状態の説明図。FIG. 9 is an explanatory view showing a state in which the heat exchanger tube of the present invention is inserted into a pipe of the heat exchanger.

【図１０】本発明の熱交換器用チューブを製作する凹凸
平板の第５の例の説明図。FIG. 10 is an explanatory view of a fifth example of a concave and convex flat plate for manufacturing the heat exchanger tube of the present invention.

【図１１】（ａ）は本発明の熱交換器に使用される平板
に突条と凹条を形成するためのローラの断面図、（ｂ）
は平板に突条と凹条を形成するための段押し装置の他の
例を示す説明図。FIG. 11 (a) is a cross-sectional view of a roller for forming a ridge and a ridge on a flat plate used in the heat exchanger of the present invention, and (b).
FIG. 4 is an explanatory view showing another example of a stepping device for forming a ridge and a ridge on a flat plate.

【図１２】従来の熱交換器用のパイプとチューブの第１
の説明図。FIG. 12 is a first view of a conventional pipe and tube for a heat exchanger.
FIG.

【図１３】従来の熱交換器用のパイプとチューブの第２
の説明図。FIG. 13 shows a second example of a conventional pipe and tube for a heat exchanger.
FIG.

【図１４】（ａ）は従来の熱交換器の組立て前の説明
図、（ｂ）は同図（ａ）における媒体の流れの説明図。14A is an explanatory view of a conventional heat exchanger before assembly, and FIG. 14B is an explanatory view of a flow of a medium in FIG.

【符号の説明】[Explanation of symbols]

１は平板 ２は凸条 ３は凹条 ４は凹凸平板 ５は区画壁 ６は媒体通路 ７、８は凹凸平板の幅方向両端部 ９はストッパー １０は切欠き部 １１は基板 １２はロー材 １３は平面部 1 is a flat plate 2 is a convex stripe 3 is a concave stripe 4 is a concave and convex flat plate 5 is a partition wall 6 is a medium passage 7, 8 is both ends in the width direction of the concave and convex flat plate 9 is a stopper 10 is a cutout portion 11 is a substrate 12 is a brazing material 13 Is a plane part

Claims (10)

【特許請求の範囲】[Claims] 【請求項１】ロー材が皮膜されているか又はされていな
い平板（１）の片面に複数の凸条（２）と凹条（３）と
が間隔をあけて形成された凹凸平板（４）を、凸条
（２）を内側にしてチューブ状に折曲げて、凸条（２）
同士を、又は凸条（２）と凹条（３）を突合わせて、内
側に複数の区画壁（５）とそれら区画壁（５）で区画さ
れた媒体通路（６）とを形成し、折曲げた凹凸平板
（４）の幅方向両端部（７、８）を閉塞してなる熱交換
器用チューブ。An uneven flat plate (4) in which a plurality of ridges (2) and concave ridges (3) are formed on one side of a flat plate (1) coated or uncoated with a brazing material at intervals. Is bent into a tube shape with the ridge (2) inside, and the ridge (2)
Abutting the ridges (2) and the ridges (3) with each other to form a plurality of partition walls (5) and a medium passage (6) partitioned by the partition walls (5) inside, A heat exchanger tube in which both ends (7, 8) in the width direction of the bent uneven plate (4) are closed. 【請求項２】ロー材が皮膜されているか又はされていな
い平板（１）の片面に複数の凸条（２）と凹条（３）を
間隔をあけて形成すると共に、それらが形成されていな
い平面部（１３）をも形成した凹凸平板（４）を、凸条
（２）が内側になるようにチューブ状に折曲げて凸条
（２）と平面部（１３）とを突合わせて、内側に複数の
区画壁（５）とそれら区画壁（５）で区画された媒体通
路（６）とを形成し、折り曲げた凹凸平板（４）の幅方
向両端部（７、８）を閉塞してなる熱交換器用チュー
ブ。2. A flat plate (1) coated or uncoated with a brazing material, a plurality of ridges (2) and a plurality of ridges (3) are formed at intervals on one surface of the flat plate (1), and they are formed. The uneven plate (4), which also has a flat part (13), is bent into a tube shape so that the ridge (2) is on the inside, and the ridge (2) and the flat part (13) are butted. A plurality of partition walls (5) and a medium passage (6) partitioned by the partition walls (5) are formed inside, and both ends (7, 8) in the width direction of the bent uneven plate (4) are closed. Heat exchanger tube 【請求項３】チューブ状に折曲げた凹凸平板（４）の幅
方向外側面の長手方向端側に、熱交換器のパイプへの差
込み長を規制するストッパー（９）を形成した請求項１
又は請求項２記載の熱交換器用チューブ。3. A stopper (9) for regulating the length of insertion of a heat exchanger into a pipe is formed at the longitudinal end of the outer surface in the width direction of the uneven plate (4) bent in a tubular shape.
Or the heat exchanger tube according to claim 2. 【請求項４】平板（１）の幅方向両端部（７、８）の長
手方向両端側を切断除去して切欠き部（１０）も形成し
て凹凸平板（４）とし、その凹凸平板（４）をチューブ
状に折曲げて同凹凸平板（４）の幅方向両端部を閉塞
し、前記切欠き部（１０）の端面を熱交換器のパイプへ
の差込み長を規制するストッパー（９）とした請求項１
又は請求項２記載の熱交換器用チューブ。4. A flat plate (1) is formed by cutting and removing both ends in the longitudinal direction of both ends (7, 8) in the width direction of the flat plate (1) to form a notch (10). A stopper (9) that bends the tube (4) into a tubular shape to close both ends in the width direction of the uneven plate (4) and regulates the length of the end face of the notch (10) inserted into the pipe of the heat exchanger. Claim 1
Or the heat exchanger tube according to claim 2. 【請求項５】ロール状に巻かれている原反から連続的に
引出される平板（１）又は一枚づつ独立した平板（１）
又は複数枚連続した平板（１）の片面に、複数の凸条
（２）と凹条（３）とを間隔をあけて形成して凹凸平板
（４）とし、その凹凸平板（４）を凸条（２）が内側に
なる様にチューブ状に折り曲げて、凸条（２）同士を又
は凸条（２）と凹条（３）を突合わせて内部に複数の区
画壁（５）を形成すると共にそれら区画壁（５）で区画
された媒体通路（６）を形成し、折り曲げた凹凸平板
（４）の幅方向両端部（７、８）を閉塞してチューブ
（２０）を形成するようにした熱交換器用チューブの製
造方法。5. A flat plate (1) which is continuously drawn from a raw material wound in a roll or an independent flat plate (1) one by one.
Alternatively, a plurality of ridges (2) and recesses (3) are formed on one surface of a plurality of continuous flat plates (1) at intervals to form an uneven flat plate (4), and the uneven flat plate (4) is convex. A plurality of partition walls (5) are formed inside by bending the ridges (2) to each other or the ridges (2) and the concave ridges (3) in a tube shape so that the ridges (2) are on the inside. At the same time, a medium passage (6) partitioned by the partition walls (5) is formed, and both ends (7, 8) in the width direction of the bent uneven plate (4) are closed to form a tube (20). Of manufacturing heat exchanger tubes. 【請求項６】ロール状に巻かれている原反から連続的に
引出される平板（１）又は一枚づつ独立した平板（１）
又は複数枚連続した平板（１）の片面に複数の凸条
（２）と凹条（３）とを間隔をあけて形成すると共に、
それらが形成されていない平面部（１３）をも形成して
凹凸平板（４）とし、その凹凸平板（４）を凸条（２）
を内側にしてチューブ状に折り曲げて、凸条（２）と平
面部（１３）とを突合わせて内部に複数の区画壁（５）
を形成すると共にそれら区画壁（５）で区画された媒体
通路（６）を形成し、折り曲げた凹凸平板（４）の幅方
向両端部（７、８）を閉塞してチューブ（２０）を形成
するようにした熱交換器用チューブの製造方法。6. A flat plate (1) which is continuously drawn from a raw material wound in a roll or an independent flat plate (1) one by one.
Alternatively, a plurality of ridges (2) and a plurality of ridges (3) are formed on one surface of a plurality of continuous flat plates (1) at intervals, and
A flat portion (13) where they are not formed is also formed to form an uneven plate (4), and the uneven plate (4) is formed as a ridge (2).
Is bent in the shape of a tube with the inside as the inside, and the ridges (2) and the flat portion (13) are abutted to each other to form a plurality of partition walls (5) inside.
And a medium passage (6) partitioned by the partition walls (5), and both ends (7, 8) in the width direction of the bent uneven plate (4) are closed to form a tube (20). A method for producing a tube for a heat exchanger. 【請求項７】ロール状に巻かれている原反から連続的に
引出される平板（１）、又は複数枚連続した平板（１）
の片面に、複数の凸条（２）と凹条（３）とを間隔をあ
けて形成して凹凸平板（４）とし、その凹凸平板（４）
を切断分離して一枚にしてから、凸条（２）が内側にな
る様にチューブ状に折り曲げて、凸条（２）同士を又は
凸条（２）と凹条（３）を突合わせて内部に複数の区画
壁（５）を形成すると共にそれら区画壁（５）で区画さ
れた媒体通路（６）を形成し、折り曲げた凹凸平板
（４）の幅方向両端部（７、８）を閉塞してチューブ
（２０）を形成するようにした熱交換器用チューブの製
造方法。7. A flat plate (1) which is continuously drawn from a raw material wound in a roll form, or a plurality of continuous flat plates (1).
A plurality of convex strips (2) and concave strips (3) are formed on one side of the sheet at an interval to form an uneven flat plate (4), and the uneven flat plate (4)
Is cut and separated into a single sheet, and then bent into a tube shape so that the ridge (2) is on the inside, and the ridges (2) or the ridges (2) and the concave ridges (3) are butted together. A plurality of partition walls (5) are formed inside and a medium passage (6) partitioned by the partition walls (5) is formed, and both ends (7, 8) in the width direction of the concave and convex flat plate (4) are bent. A method for producing a tube for a heat exchanger, wherein the tube is closed by forming a tube (20). 【請求項８】ロール状に巻かれている原反から連続的に
引出される平板（１）又は複数枚連続した平板（１）の
片面に複数の凸条（２）と凹条（３）とそれらが形成さ
れない平面部（１３）を形成して凹凸平板（４）とし、
その凹凸平板（４）を切断分離して一枚にしてから、凸
条（２）を内側にしてチューブ状に折り曲げて、凸条
（２）と平面部（１３）とを突合わせて内部に複数の区
画壁（５）を形成すると共にそれら区画壁（５）で区画
された媒体通路（６）を形成し、折り曲げた凹凸平板
（４）の幅方向両端部（７、８）を閉塞してチューブ
（２０）を形成するようにした熱交換器用チューブの製
造方法。8. A plurality of ridges (2) and a plurality of ridges (3) on one side of a flat plate (1) or a plurality of continuous flat plates (1) continuously drawn from a roll wound raw material. And a flat portion (13) where they are not formed to form an uneven flat plate (4),
The concavo-convex plate (4) is cut and separated into one sheet, and then bent into a tube shape with the ridge (2) on the inside, and the ridge (2) and the flat portion (13) are abutted on the inside. A plurality of partition walls (5) are formed, and a medium passage (6) partitioned by the partition walls (5) is formed, and both ends (7, 8) in the width direction of the bent uneven plate (4) are closed. A method for producing a tube for a heat exchanger, wherein a tube (20) is formed by heating. 【請求項９】凹凸平板（４）をチューブ状に折り曲げて
その幅方向両端部（７、８）の一方を他方の外側に重ね
て閉塞して、閉塞部（２１）が外側に突出するチューブ
（２０）を形成し、同閉塞部（２１）の長手方向両端側
を切断除去して熱交換器のパイプへ差込み可能な差込み
部（２２）を形成すると共にその切断端面をパイプへの
差込み長を規制するストッパー（９）とするようにした
請求項５乃至請求項８記載の夫々の熱交換器用チューブ
の製造方法。9. A tube in which a concave and convex flat plate (4) is bent into a tube shape and one of both ends (7, 8) in the width direction of the tube is overlapped and closed on the other outside, and the closed portion (21) projects outward. (20) is formed, and both ends in the longitudinal direction of the closed portion (21) are cut and removed to form an insertion portion (22) that can be inserted into a pipe of a heat exchanger, and the cut end face is inserted into the pipe at a length corresponding to the insertion length. The method for producing a heat exchanger tube according to any one of claims 5 to 8, wherein a stopper (9) is provided for regulating the pressure. 【請求項１０】平板（１）の幅方向両端部（７、８）の
長手方向両端側を切断除去して切欠き部（１０）も形成
して凹凸平板（４）とし、その凹凸平板（４）を、チュ
ーブ状に折曲げて前記幅方向両端部（７、８）を閉塞す
ると共に前記切欠き部（１０）の端面を熱交換器のパイ
プのチューブ差込み孔への差込み長を規制するストッパ
ー（９）とするようにした請求項５乃至請求項８記載の
夫々の熱交換器用チューブの製造方法。10. A flat plate (4) formed by cutting and removing both ends in the longitudinal direction of both ends (7, 8) in the width direction of the flat plate (1) to form a notch (10). 4) is bent into a tube shape to close both ends (7, 8) in the width direction, and regulates the length of the end face of the notch (10) into the tube insertion hole of the pipe of the heat exchanger. 9. The method for producing a heat exchanger tube according to claim 5, wherein the stopper is used as a stopper.
JP27255596A 1996-10-15 1996-10-15 Tube for heat exchanger and method for producing the same Expired - Fee Related JP3459924B2 (en)

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Application Number Priority Date Filing Date Title
JP27255596A JP3459924B2 (en) 1996-10-15 1996-10-15 Tube for heat exchanger and method for producing the same

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JPH10122778A true JPH10122778A (en) 1998-05-15
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