JP4235940B2 - Heat exchanger manufacturing method and heat exchanger - Google Patents

Heat exchanger manufacturing method and heat exchanger Download PDF

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Publication number
JP4235940B2
JP4235940B2 JP2003107062A JP2003107062A JP4235940B2 JP 4235940 B2 JP4235940 B2 JP 4235940B2 JP 2003107062 A JP2003107062 A JP 2003107062A JP 2003107062 A JP2003107062 A JP 2003107062A JP 4235940 B2 JP4235940 B2 JP 4235940B2
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heat exchanger
header
groove
longitudinal direction
fitted
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JP2004316937A (en
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多加司 伊神
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T.RAD CO., L T D.
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T.RAD CO., L T D.
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/0219—Arrangements for sealing end plates into casing or header box; Header box sub-elements
    • F28F9/0224—Header boxes formed by sealing end plates into covers
    • 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
    • F28D1/05383—Assemblies of conduits connected to common headers, e.g. core type radiators with multiple rows of conduits or with multi-channel conduits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2220/00—Closure means, e.g. end caps on header boxes or plugs on conduits

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Details Of Heat-Exchange And Heat-Transfer (AREA)

Description

【０００１】
【発明の属する技術分野】
本発明は、複数のコアを並列し、それらを共通のタンクに取付けた、いわゆるモジールコア型の熱交換器に関する。
【０００２】
【従来の技術】
複数のモジュールコアを並列させて大型の熱交換器を構成するものは、そのヘッダーに複数の開口を独立して形成し、夫々モジュールコアのヘッダープレートの周縁をその開口に整合する環状溝に形成し、その環状溝をシールパッキンを介して開口に嵌着し、環状溝の周縁をかしめたものであった（例えば、特許文献１参照。）。
【０００３】
【特許文献１】
特開平７−２６０３９５号公報
【０００４】
【発明が解決しようとする課題】
従来のモジュール型熱交換器は、そのタンクが複雑であると共に、コアとタンクの開口との接続が極めて面倒なものであった。
そこで本発明は、複数のコアを有する熱交換器であって、構造が簡単で製造の容易な熱交換器の製造方法およびその熱交換器を提供することを課題とする。
【０００５】
【課題を解決するための手段】
請求項１に記載の本発明は、多数のチューブ(1) およびフィン(2) を並列して、その集合体を形成すると共に、溝状に曲折された細長いヘッダープレート(3) のチューブ挿通孔(3a)に夫々のチューブ(1) の端部を挿通して、コア(4) を組み立てる工程と、
夫々のヘッダープレート(3) の長手方向に平行な縁どうしが接するように、複数のコア(4) を幅方向に重ね合わせ、重ね合わされた複数のヘッダープレート(3) の周縁に、それに整合するヘッダ本体(5) の開口を嵌着して熱交換器を組み立てる工程と、
組み立てられた熱交換器を炉内で一体にろう付けする工程と、を具備する熱交換器の製造方法である。
【０００６】
請求項２に記載の本発明は、請求項１に記載の製造方法により製造された熱交換器において、
前記ヘッダ本体(5) が、溝状に曲折形成された溝型ヘッダ部材(5a)と、その溝型ヘッダ部材(5a)の長手方向の両端を閉塞する一対の側蓋(5b)とからなり、
溝型ヘッダ部材(5a)は、その長手方向の両側部に、溝底および側壁の一部に達する底部スリット(6) が形成され、
前記側蓋(5b)は、隣接する一対のヘッダープレート(3) の重ね合わせ部に整合する中間スリット(7) がその一端縁の中間部に形成されると共に、その周縁が前記底部スリット(6) および溝型ヘッダ部材(5a)内周に整合し、
前記側蓋(5b)が前記底部スリット(6) に嵌着して、その中間スリット(7) が一対の前記ヘッダープレート(3) の重ね合わせ部に嵌着された熱交換器である。
【０００７】
請求項３に記載の本発明は、請求項２において、
前記側蓋(5b)の前記一端縁で、前記中間スリット(7) の両側に係止凸部(8) が形成され、その係止凸部(8) が、夫々のヘッダープレート(3) の係止孔(9) に嵌着されるように構成された熱交換器である。
【０００８】
請求項４に記載の発明は、請求項１に記載の製造方法により製造された熱交換器において、
前記ヘッダ本体(5) が、溝状に曲折形成された溝型ヘッダ部材(5a)と、その溝型ヘッダ部材(5a)の長手方向の両端を閉塞する一対の側蓋(5b)とからなり、
溝型ヘッダ部材(5a)は、その長手方向の両端縁に、周方向に互いに離間して複数のカシメ用爪部(5c)が突設され、前記側蓋(5b)にはそれに整合する欠切部(13)が設けられ、側蓋(5b)をヘッダ本体(5) に被嵌した後に、前記カシメ用爪部(5c)を締結してなる熱交換器である。
【０００９】
【発明の実施の形態】
次に、図面に基づいて本発明の実施の形態につき説明する。
図１は本発明の熱交換器の分解斜視図であり、図２はその熱交換器の組立て状態を示す側面略図である。
この熱交換器は、コア４が多数の偏平なチューブ１とコルゲート型のフィン２とを交互に並列して集合体を形成し、夫々のチューブ１の端部をヘッダープレート３のチューブ挿通孔３ａに挿通したものである。
【００１０】
このヘッダープレート３は金属板を溝型に曲折し、その長手方向両端に係止孔９が形成されると共に、定間隔にヘッダープレート３の長手方向にチューブ挿通孔３ａが穿設されたものである。
このようにしてなる複数のコア４を、夫々の長手方向に平行な縁どうしが接するようにその幅方向に重ね合わせ、その重ね合わせ状態でその外周に箱状に形成されたヘッダ本体５の開口が嵌着されるのもである。
【００１１】
このヘッダ本体５は溝状に金属板を曲折した溝型ヘッダ部材５ａと、その溝型ヘッダ部材５ａの長手方向両端を閉塞する一対の側蓋５ｂとからなる。
溝型ヘッダ部材５ａは、その両端部に底部スリット６が形成されている。この底部スリット６は溝底の全長を横断すると共に、それが両側壁の溝底側の一部に達する。即ち、底部スリット６は溝型ヘッダ部材５ａの端部に脚部の短い門型に形成されている。そしてその底部スリット６の幅は、側蓋５ｂの幅に整合する。
【００１２】
次に、側蓋５ｂはその両側が溝型ヘッダ部材５ａの両側壁内面間に整合し且つ、図において上部の両側に袖部10が突設され、その袖部10に袖部スリット11が両側に平行に形成されている。この袖部スリット11は、底部スリット６のスリット端６ａに嵌着する。そのため袖部スリット11の幅は、溝型ヘッダ部材５ａの板厚に整合する。
【００１３】
また、側蓋５ｂの図において下端中央には中間スリット７が設けられている。この中間スリット７は一対のヘッダープレート３の図において上面側に突設された重ね合わせ部外周に整合する。さらに中間スリット７の左右には、一対の係止凸部８が突設されている。この係止凸部８は、ヘッダープレート３の係止孔９に整合する。
上記の各部品は一例としてアルミニューム材からなり、互いに接触する一方の部品表面には予めろう材が被覆されたものが用いられる。
【００１４】
【組み立て順序】
次に、各コア４および熱交換器の組み立て順序につき述べる。
チューブ１とフィン２とを交互に配置して、それらの集合体を形成し、その集合体を並列方向に圧着した状態でその上下両端にヘッダープレート３を配置し、そのチューブ挿通孔３ａに夫々のチューブ１の両端部を挿通する。そしてそのチューブ１の両端部を拡開し、チューブ１をヘッダープレート３に固定しコア４を形成する。
【００１５】
このようなコア４を複数幅方向に重ね合わせ、次いで溝型ヘッダ部材５ａを一対のヘッダープレート３の外周縁に嵌着する。それと共に、側蓋５ｂを溝型ヘッダ部材５ａの底部スリット６に嵌着し、中間スリット７を一対のヘッダープレート３の重ね合わせ部に嵌着すると共に、一対の係止凸部８を各ヘッダープレート３の係止孔９に嵌着し、熱交換器を図２の如く組み立てる。
なお、上下の溝型ヘッダ部材５ａには夫々出入り口パイプ12が予め取付けられる。
【００１６】
このように組立てられた熱交換器は高温の炉内に挿入され、各部品表面のろう材を溶融し、次いでそれを冷却固化することにより、各部品の接触部間を一体に且つ液密にろう付け固定し熱交換器を完成する。
上記の例では、一対のコア４のチューブ１のピッチ間隔が同一であっが、それを図３の如く前側のコア４と後側のコア４とで異ならせることができる。その場合、夫々のフィン２の波の振幅は各チューブ１の対向面間に一致するようになる。
【００１７】
次に、図４に示す如く前側のコア４の厚さと後側のそれとを異ならせることができる。この例では、前側のコア４は二列のチューブ１が配置され、後側のそれは一列のチューブ１が配置されている。
また、各コア４のフィン２のフィンピッチ或いはフィン形状その他を、前側のコア４と後側のコア４とで異ならせることもできる。或いはコルゲートフィンの代わりにプレートを用いることもできる。
さらには、偏平なチューブ１の代わりに断面円形のチューブを用いることもできる。
【００１８】
次に、図５は本発明の熱交換器の製造方法の他の実施の形態示す説明図であり、図６はその組立て状態を示す要部斜視図である。この例は、前記ヘッダ本体５が、溝状に曲折形成された溝型ヘッダ部材５ａと、その溝型ヘッダ部材５ａの長手方向の両端外周に整合した側蓋５ｂとからなる。そして、その溝型ヘッダ部材５ａは、その長手方向の両端縁に、周方向に互いに離間して複数のカシメ用爪部５ｃ（この例では４つの爪部）が突設される。また夫々のヘッダープレート３の長手方向両端にも同様のカシメ用爪部５ｃが突設されている。そして、側蓋５ｂにはそれらの爪部５ｃに整合する欠切部13が設けられ、側蓋５ｂをヘッダ本体５に被嵌した後に、前記カシメ用爪部５ｃを締結固定し、熱交換器を組み立てたものである。
【００１９】
【発明の作用・効果】
本発明の熱交換器の製造方法は、夫々多数のチューブ１およびフィン２の集合体と、その端部に設けられたヘッダープレート３によってコア４を組み立てる工程と、組立てられた複数のコア４を幅方向に重ね合わせ、その外周にそれに整合するヘッダ本体５の開口を嵌着して熱交換器を組み立てる工程と、組立てられた熱交換器を炉内で一体にろう付け固定する工程とを具備するものである。
このように夫々のコア４を組立てた後に、それらを重ね合わせてヘッダ本体５を嵌着する工程をとることにより、多種の熱交換器または多種の容量の熱交換器を容易に製造することができる。逆にいえば、従来の一体型コアの如く専用の組立て機械および治具並びにヘッダープレートを必要としない。
【００２０】
次に、請求項２に記載の熱交換器は、ヘッダ本体５が溝型ヘッダ部材５ａと側蓋５ｂとからなり、その側蓋５ｂが側蓋嵌着用の底部スリット６に嵌着されて、その一端縁の中間スリット７が隣接する一対のヘッダープレート３の重ね合わせ部に嵌着されるものであるから、ヘッダ本体５の組立てが容易で信頼性の高いものを提供できる。それと共に、コアの横幅を自由に設計変更できる。即ち、各種容量の熱交換器を同一金型で製造できる。
【００２１】
請求項３に記載の発明は、上記構成においてさらに側蓋５ｂの係止凸部８がヘッダープレート３の係止孔９に嵌着されるものであるから、さらにヘッダ本体５とヘッダープレート３との組立てを容易にし、信頼性の高い熱交換器となり得る。
【００２２】
請求項４に記載の発明は、溝型ヘッダ部材５ａの長手方向の両端縁に、周方向に互いに離間して複数のカシメ用爪部５ｃが突設される。そして、側蓋５ｂにはそれらカシメ用爪部５ｃに整合する欠切部13が設けられ、側蓋５ｂをヘッダ本体５に被嵌した後に、前記カシメ用爪部５ｃを締結固定し、熱交換器を組み立てたものであるから、さらにヘッダ本体５の組立てを容易にし、信頼性の高い熱交換器となり得る。
【図面の簡単な説明】
【図１】本発明の熱交換器の要部分解斜視図。
【図２】同熱交換器の組立て状態を示す側面略図。
【図３】本発明の他の実施の形態を示す熱交換器の説明図。
【図４】同さらに他の実施の形態を示す熱交換器の説明図。
【図５】本発明の熱交換器の製造方法の他の実施の形態示す説明図。
【図６】同熱交換器の組立て状態を示す要部斜視図。
【符号の説明】
１ チューブ
２ フィン
３ ヘッダープレート
３ａ チューブ挿通孔
４ コア
５ ヘッダ本体
５ａ 溝型ヘッダ部材
５ｂ 側蓋
５ｃ カシメ用爪部
６ 底部スリット
６ａ スリット端
７ 中間スリット
８ 係止凸部
９ 係止孔
10 袖部
11 袖部スリット
12 出入り口パイプ
13 欠切部[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a so-called modular core type heat exchanger in which a plurality of cores are arranged in parallel and attached to a common tank.
[0002]
[Prior art]
For large heat exchangers with multiple module cores in parallel, multiple openings are formed in the header independently, and the peripheral edge of the header plate of each module core is formed in an annular groove that aligns with the opening Then, the annular groove was fitted into the opening via the seal packing, and the periphery of the annular groove was caulked (see, for example, Patent Document 1).
[0003]
[Patent Document 1]
JP-A-7-260395 [0004]
[Problems to be solved by the invention]
The conventional modular heat exchanger has a complicated tank, and the connection between the core and the opening of the tank is extremely troublesome.
Accordingly, it is an object of the present invention to provide a heat exchanger manufacturing method having a plurality of cores, which has a simple structure and is easy to manufacture, and the heat exchanger.
[0005]
[Means for Solving the Problems]
The present invention as set forth in claim 1 is a tube insertion hole of an elongated header plate (3) bent into a groove shape while forming an assembly of a plurality of tubes (1) and fins (2) in parallel. Inserting the end of each tube (1) through (3a) and assembling the core (4);
A plurality of cores (4) are overlapped in the width direction so that edges parallel to the longitudinal direction of each header plate (3) are in contact with each other, and aligned with the peripheral edges of the stacked header plates (3). Assembling the heat exchanger by fitting the opening of the header body (5);
And brazing the assembled heat exchanger together in a furnace.
[0006]
The present invention described in claim 2 is a heat exchanger manufactured by the manufacturing method according to claim 1,
The header body (5) comprises a groove-type header member (5a) bent into a groove shape, and a pair of side lids (5b) that close both ends in the longitudinal direction of the groove-type header member (5a). ,
The groove-type header member (5a) is formed with a bottom slit (6) reaching both the groove bottom and a part of the side wall on both sides in the longitudinal direction,
The side lid (5b) has an intermediate slit (7) formed in an intermediate portion of one end edge thereof that is aligned with an overlapping portion of a pair of adjacent header plates (3), and a peripheral edge of the side lid (5b). ) And the groove type header member (5a)
In the heat exchanger, the side lid (5b) is fitted to the bottom slit (6), and the intermediate slit (7) is fitted to the overlapping portion of the pair of header plates (3).
[0007]
The present invention described in claim 3 provides the method according to claim 2,
Locking projections (8) are formed on both sides of the intermediate slit (7) at the one end edge of the side lid (5b), and the locking projections (8) are formed on the respective header plates (3). It is a heat exchanger configured to be fitted into the locking hole (9).
[0008]
Invention of Claim 4 is the heat exchanger manufactured by the manufacturing method of Claim 1,
The header body (5) comprises a groove-type header member (5a) bent into a groove shape, and a pair of side lids (5b) that close both ends in the longitudinal direction of the groove-type header member (5a). ,
The groove-type header member (5a) is provided with a plurality of caulking claw portions (5c) projecting from both ends in the longitudinal direction so as to be spaced apart from each other in the circumferential direction. The heat exchanger is provided with a cut portion (13), the side lid (5b) is fitted on the header body (5), and the caulking claw portion (5c) is fastened.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Next, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is an exploded perspective view of a heat exchanger according to the present invention, and FIG. 2 is a schematic side view showing an assembled state of the heat exchanger.
In this heat exchanger, a core 4 has a large number of flat tubes 1 and corrugated fins 2 alternately arranged in parallel to form an aggregate, and the end of each tube 1 is connected to a tube insertion hole 3a in a header plate 3. It is inserted through.
[0010]
This header plate 3 is formed by bending a metal plate into a groove shape, and having locking holes 9 at both ends in the longitudinal direction, and having tube insertion holes 3a in the longitudinal direction of the header plate 3 at regular intervals. is there.
The plurality of cores 4 thus formed are overlapped in the width direction so that the edges parallel to the respective longitudinal directions are in contact with each other, and the opening of the header body 5 formed in a box shape on the outer periphery in the overlapped state. Is also inserted.
[0011]
The header body 5 includes a groove-type header member 5a obtained by bending a metal plate into a groove shape, and a pair of side lids 5b that close both ends in the longitudinal direction of the groove-type header member 5a.
The groove-type header member 5a has bottom slits 6 formed at both ends thereof. The bottom slit 6 traverses the entire length of the groove bottom, and reaches a part of the groove bottom side of both side walls. That is, the bottom slit 6 is formed in a gate shape with a short leg at the end of the groove-type header member 5a. The width of the bottom slit 6 matches the width of the side lid 5b.
[0012]
Next, both sides of the side cover 5b are aligned between the inner surfaces of both side walls of the groove-type header member 5a, and sleeve portions 10 are provided on both sides of the upper portion in the drawing, and sleeve slits 11 are formed on the sleeve portions 10 on both sides. It is formed in parallel with. The sleeve slit 11 is fitted into the slit end 6 a of the bottom slit 6. Therefore, the width of the sleeve slit 11 matches the plate thickness of the groove-type header member 5a.
[0013]
Further, an intermediate slit 7 is provided at the center of the lower end in the side cover 5b. The intermediate slit 7 is aligned with the outer periphery of the overlapping portion protruding on the upper surface side in the figure of the pair of header plates 3. Further, a pair of locking projections 8 project from the left and right of the intermediate slit 7. The locking projection 8 is aligned with the locking hole 9 of the header plate 3.
Each of the above parts is made of an aluminum material as an example, and one part surface in contact with each other is previously coated with a brazing material.
[0014]
[Assembly order]
Next, the assembly order of each core 4 and the heat exchanger will be described.
The tubes 1 and the fins 2 are alternately arranged to form an aggregate thereof, and the header plates 3 are disposed at both upper and lower ends in a state where the aggregate is crimped in the parallel direction, and the tubes are inserted into the tube insertion holes 3a. The both ends of the tube 1 are inserted. And the both ends of the tube 1 are expanded, the tube 1 is fixed to the header plate 3, and the core 4 is formed.
[0015]
Such cores 4 are stacked in a plurality of width directions, and then the groove-type header member 5 a is fitted to the outer peripheral edges of the pair of header plates 3. At the same time, the side lid 5b is fitted into the bottom slit 6 of the groove-type header member 5a, the intermediate slit 7 is fitted into the overlapping portion of the pair of header plates 3, and the pair of locking projections 8 are attached to each header. The heat exchanger is assembled as shown in FIG.
In addition, the entrance / exit pipe 12 is previously attached to the upper and lower groove type header members 5a.
[0016]
The heat exchanger assembled in this way is inserted into a high-temperature furnace, melts the brazing material on the surface of each part, and then cools and solidifies it so that the contact parts of each part are integrated and liquid-tight. Brazed and fixed to complete the heat exchanger.
In the above example, the pitch interval of the tubes 1 of the pair of cores 4 is the same, but it can be made different between the front core 4 and the rear core 4 as shown in FIG. In that case, the amplitude of the wave of each fin 2 will correspond between the opposing surfaces of each tube 1.
[0017]
Next, as shown in FIG. 4, the thickness of the front core 4 can be made different from that on the rear side. In this example, two rows of tubes 1 are arranged on the front core 4, and one row of tubes 1 is arranged on the rear side.
Further, the fin pitch or fin shape of the fins 2 of each core 4 may be different between the front core 4 and the rear core 4. Alternatively, a plate can be used instead of the corrugated fin.
Furthermore, instead of the flat tube 1, a tube having a circular cross section can be used.
[0018]
Next, FIG. 5 is explanatory drawing which shows other embodiment of the manufacturing method of the heat exchanger of this invention, FIG. 6 is a principal part perspective view which shows the assembly state. In this example, the header body 5 includes a groove-type header member 5a bent in a groove shape, and side lids 5b aligned with the outer circumferences of both ends in the longitudinal direction of the groove-type header member 5a. The groove-type header member 5a has a plurality of caulking claw portions 5c (four claw portions in this example) protruding from both ends in the longitudinal direction so as to be separated from each other in the circumferential direction. Further, similar caulking claw portions 5c are projected from both ends of each header plate 3 in the longitudinal direction. The side lid 5b is provided with a notch 13 that aligns with the claw portions 5c. After the side lid 5b is fitted to the header body 5, the claw claw portions 5c are fastened and fixed, and the heat exchanger Is assembled.
[0019]
[Operation and effect of the invention]
The method for manufacturing a heat exchanger according to the present invention includes a step of assembling a core 4 by an assembly of a large number of tubes 1 and fins 2 and a header plate 3 provided at an end thereof, and a plurality of assembled cores 4 are assembled. A step of assembling the heat exchanger by overlapping the width direction and fitting the opening of the header body 5 aligned therewith to the outer periphery thereof, and a step of brazing and fixing the assembled heat exchanger together in the furnace To do.
Thus, after assembling the respective cores 4, it is possible to easily manufacture various types of heat exchangers or various types of heat exchangers by superimposing them and fitting the header body 5. it can. Conversely, a dedicated assembly machine, jig, and header plate are not required unlike the conventional integrated core.
[0020]
Next, in the heat exchanger according to claim 2, the header body 5 includes a groove-type header member 5a and a side lid 5b, and the side lid 5b is fitted into the bottom slit 6 for side lid fitting, Since the intermediate slit 7 at one end edge is fitted into the overlapping portion of the pair of adjacent header plates 3, the header body 5 can be easily assembled and highly reliable. At the same time, the design of the core width can be freely changed. That is, heat exchangers of various capacities can be manufactured with the same mold.
[0021]
According to the third aspect of the present invention, since the locking projection 8 of the side cover 5b is further fitted into the locking hole 9 of the header plate 3 in the above configuration, the header body 5 and the header plate 3 Can be easily assembled and a heat exchanger with high reliability can be obtained.
[0022]
In the invention according to claim 4, a plurality of caulking claw portions 5c project from the both end edges in the longitudinal direction of the groove-type header member 5a so as to be spaced apart from each other in the circumferential direction. The side lid 5b is provided with a notch 13 that aligns with the caulking claw 5c. After the side lid 5b is fitted to the header body 5, the caulking claw 5c is fastened and fixed, and heat exchange is performed. Since the container is assembled, the assembly of the header body 5 can be facilitated, and a highly reliable heat exchanger can be obtained.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view of a main part of a heat exchanger according to the present invention.
FIG. 2 is a schematic side view showing an assembled state of the heat exchanger.
FIG. 3 is an explanatory diagram of a heat exchanger showing another embodiment of the present invention.
FIG. 4 is an explanatory view of a heat exchanger showing still another embodiment.
FIG. 5 is an explanatory view showing another embodiment of the method for producing a heat exchanger of the present invention.
FIG. 6 is a perspective view of a main part showing an assembled state of the heat exchanger.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Tube 2 Fin 3 Header plate 3a Tube insertion hole 4 Core 5 Header main body 5a Groove-type header member 5b Side cover 5c Claw part 6 Bottom slit 6a Slit end 7 Intermediate slit 8 Locking convex part 9 Locking hole
10 Sleeve
11 Sleeve slit
12 Entrance / exit pipe
13 Notch

Claims (4)

多数のチューブ(1) およびフィン(2) を並列して、その集合体を形成すると共に、溝状に曲折された細長いヘッダープレート(3) のチューブ挿通孔(3a)に夫々のチューブ(1) の端部を挿通して、コア(4) を組み立てる工程と、
夫々のヘッダープレート(3) の長手方向に平行な縁どうしが接するように、複数のコア(4) を幅方向に重ね合わせ、重ね合わされた複数のヘッダープレート(3) の周縁に、それに整合するヘッダ本体(5) の開口を嵌着して熱交換器を組み立てる工程と、
組み立てられた熱交換器を炉内で一体にろう付けする工程と、を具備する熱交換器の製造方法。A large number of tubes (1) and fins (2) are arranged in parallel to form an assembly, and each tube (1) is inserted into a tube insertion hole (3a) of an elongated header plate (3) bent in a groove shape. Assembling the core (4) by inserting the end of
A plurality of cores (4) are overlapped in the width direction so that edges parallel to the longitudinal direction of each header plate (3) are in contact with each other, and aligned with the peripheral edges of the stacked header plates (3). Assembling the heat exchanger by fitting the opening of the header body (5);
Brazing the assembled heat exchanger together in a furnace, and a method of manufacturing the heat exchanger. 請求項１に記載の製造方法により製造された熱交換器において、
前記ヘッダ本体(5) が、溝状に曲折形成された溝型ヘッダ部材(5a)と、その溝型ヘッダ部材(5a)の長手方向の両端を閉塞する一対の側蓋(5b)とからなり、
溝型ヘッダ部材(5a)は、その長手方向の両側部に、溝底および側壁の一部に達する底部スリット(6) が形成され、
前記側蓋(5b)は、隣接する一対のヘッダープレート(3) の重ね合わせ部に整合する中間スリット(7) がその一端縁の中間部に形成されると共に、その周縁が前記底部スリット(6) および溝型ヘッダ部材(5a)内周に整合し、
前記側蓋(5b)が前記底部スリット(6) に嵌着して、その中間スリット(7) が一対の前記ヘッダープレート(3) の重ね合わせ部に嵌着された熱交換器。In the heat exchanger manufactured by the manufacturing method of Claim 1,
The header body (5) comprises a groove-type header member (5a) bent into a groove shape, and a pair of side lids (5b) that close both ends in the longitudinal direction of the groove-type header member (5a). ,
The groove-type header member (5a) is formed with a bottom slit (6) reaching both the groove bottom and a part of the side wall on both sides in the longitudinal direction,
The side lid (5b) has an intermediate slit (7) formed in an intermediate portion of one end edge thereof that is aligned with an overlapping portion of a pair of adjacent header plates (3), and a peripheral edge of the side lid (5b). ) And the groove type header member (5a)
A heat exchanger in which the side lid (5b) is fitted into the bottom slit (6), and an intermediate slit (7) is fitted into the overlapping portion of the pair of header plates (3). 請求項２において、
前記側蓋(5b)の前記一端縁で、前記中間スリット(7) の両側に係止凸部(8) が形成され、その係止凸部(8) が、夫々のヘッダープレート(3) の係止孔(9) に嵌着されるように構成された熱交換器。In claim 2,
Locking projections (8) are formed on both sides of the intermediate slit (7) at the one end edge of the side lid (5b), and the locking projections (8) are formed on the respective header plates (3). A heat exchanger configured to be fitted into the locking hole (9). 請求項１に記載の製造方法により製造された熱交換器において、
前記ヘッダ本体(5) が、溝状に曲折形成された溝型ヘッダ部材(5a)と、その溝型ヘッダ部材(5a)の長手方向の両端を閉塞する一対の側蓋(5b)とからなり、
溝型ヘッダ部材(5a)は、その長手方向の両端縁に、周方向に互いに離間して複数のカシメ用爪部(5c)が突設され、前記側蓋(5b)にはそれに整合する欠切部(13)が設けられ、側蓋(5b)をヘッダ本体(5) に被嵌した後に、前記カシメ用爪部(5c)を締結してなる熱交換器。In the heat exchanger manufactured by the manufacturing method of Claim 1,
The header body (5) comprises a groove-type header member (5a) bent into a groove shape, and a pair of side lids (5b) that close both ends in the longitudinal direction of the groove-type header member (5a). ,
The groove-type header member (5a) is provided with a plurality of caulking claw portions (5c) projecting from both ends in the longitudinal direction so as to be spaced apart from each other in the circumferential direction. A heat exchanger provided with a cut portion (13), the side lid (5b) being fitted on the header body (5), and the caulking claw portion (5c) being fastened.
JP2003107062A 2003-04-10 2003-04-10 Heat exchanger manufacturing method and heat exchanger Expired - Fee Related JP4235940B2 (en)

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