JP2007024350A - Heat exchanger - Google Patents

Heat exchanger Download PDF

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JP2007024350A
JP2007024350A JP2005204126A JP2005204126A JP2007024350A JP 2007024350 A JP2007024350 A JP 2007024350A JP 2005204126 A JP2005204126 A JP 2005204126A JP 2005204126 A JP2005204126 A JP 2005204126A JP 2007024350 A JP2007024350 A JP 2007024350A
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header
header member
heat exchanger
slit
tube
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JP4663434B2 (en
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Takayuki Ono
隆行 大野
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Sanden Corp
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Sanden Corp
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Priority to EP06115920A priority patent/EP1744116A3/en
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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
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/02—Tubular elements of cross-section which is non-circular
    • F28F1/025—Tubular elements of cross-section which is non-circular with variable shape, e.g. with modified tube ends, with different geometrical features
    • 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
    • F28D1/05391—Assemblies of conduits connected to common headers, e.g. core type radiators with multiple rows of conduits or with multi-channel conduits combined with a particular flow pattern, e.g. multi-row multi-stage radiators
    • 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
    • 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
    • F28F9/04—Arrangements for sealing elements into header boxes or end plates
    • F28F9/16—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling
    • F28F9/18—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling by welding
    • F28F9/182—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling by welding the heat-exchange conduits having ends with a particular shape, e.g. deformed; the heat-exchange conduits or end plates having supplementary joining means, e.g. abutments

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Geometry (AREA)
  • Details Of Heat-Exchange And Heat-Transfer (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a structure of a heat exchanger capable of being surely brazed without exact management of component dimensions, and easily assembled. <P>SOLUTION: In this heat exchanger having a header and a plurality of heat exchange tubes inserted into a plurality of tube insertion holes formed on the header at their end portions, the header has a joint structure divided into a header member A having the comb-shape in a state that each slit of the comb-shape is corresponded to the tube insertion hole, and a header member B joined to the header member A to substantially complete the entire header shape. End portions of the heat exchanger tubes are provided with flanges, and the heat exchange tubes are respectively joined to the header member A in a state that the flanges extend to both sides of the comb-shaped slit of the header member A and pulled by the header member A. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、熱交換器の構造に関し、とくに、車両用空調装置などの冷凍サイクルの構成部品として使用される蒸発器などの熱交換器を、組立性をより向上しつつ、より高精度に製造できるようにした熱交換器の構造に関する。   The present invention relates to a structure of a heat exchanger, and in particular, manufactures a heat exchanger such as an evaporator used as a component of a refrigeration cycle such as a vehicle air conditioner with higher accuracy while further improving assemblability. The present invention relates to a heat exchanger structure that can be made.

従来から、例えば複数の熱交換用チューブ（例えば、扁平チューブ）と、該チューブの端部が挿入されるチューブ挿入穴を備えたヘッダから構成される、各種の熱交換器が知られている（例えば、特許文献１、特許文献２）。これらの熱交換器の組立においては、例えば、複数のチューブの端部が、ヘッダの対応するチューブ挿入穴に挿入されて組み付けられ、必要に応じてチューブとアウターフィンが交互に積層され、全体が炉中で一括ろう付けされる。
特公平７−１２１４５１号公報 特開２００３−２１４７９４号公報 Conventionally, various heat exchangers including, for example, a plurality of heat exchange tubes (for example, flat tubes) and a header having a tube insertion hole into which an end of the tube is inserted are known ( For example, Patent Document 1 and Patent Document 2). In the assembly of these heat exchangers, for example, the end portions of a plurality of tubes are inserted and assembled into the corresponding tube insertion holes of the header, and the tubes and outer fins are alternately laminated as necessary, It is brazed together in the furnace.
Japanese Patent Publication No.7-112451 JP 2003-214794 A

ところが、上記のような熱交換器は、一般に次のような問題を抱えている。
（１）部品の寸法管理を厳格に行う必要がある。
（ｉ）チューブ端部のチューブ差し込み部がヘッダのチューブ挿入穴よりも大きすぎると、組立不可となり、小さすぎると嵌合部の隙間が大きくなり、ろう付け不良が発生することがある。
（ii）ヘッダのチューブ挿入穴のピッチが設計値よりも大きい場合、アウターフィンのろう付けができなくなるおそれがあり、設計値よりも小さいと、アウターフィンの挿入ができなくなる。 However, the heat exchanger as described above generally has the following problems.
(1) It is necessary to strictly manage the dimensions of parts.
(I) When the tube insertion portion at the tube end is too large than the tube insertion hole of the header, assembly is impossible, and when it is too small, the gap between the fitting portions becomes large, and brazing failure may occur.
(Ii) If the pitch of the tube insertion holes in the header is larger than the design value, the outer fin may not be brazed. If the pitch is smaller than the design value, the outer fin cannot be inserted.

また、熱交換用チューブと、ヘッダのチューブ挿入穴とのクリアランスは通常小さく形成されるため、チューブ端部の挿入が困難であることが多い。   Further, since the clearance between the heat exchange tube and the tube insertion hole of the header is usually small, it is often difficult to insert the tube end.

本発明の課題は、このような現状に鑑み、厳格な部品寸法管理を要せずに確実なろう付けを可能とし、かつ、組立が容易な熱交換器の構造を提供することにある。   In view of such a current situation, an object of the present invention is to provide a structure of a heat exchanger that enables reliable brazing without requiring strict component size management and is easy to assemble.

上記課題を解決するために、本発明に係る熱交換器は、ヘッダと、該ヘッダに形成された複数のチューブ挿通穴に端部が挿通される複数の熱交換用チューブとを有する熱交換器において、前記ヘッダを、互いに分割された、櫛状に形成され櫛状形状の各スリットが前記チューブ挿通穴に相当するように形成されたヘッダ部材Ａと、該ヘッダ部材Ａに合わされて実質的にヘッダ全体形状を完成するヘッダ部材Ｂとの接合構造に構成し、各熱交換用チューブの端部にフランジを形成するとともに、該熱交換用チューブを、少なくとも前記ヘッダ部材Ａに対し、前記フランジが前記ヘッダ部材Ａの櫛状形状のスリットの両側に延び前記ヘッダ部材Ａに引っ掛けられた形態にて接合したことを特徴とするものからなる。   In order to solve the above problems, a heat exchanger according to the present invention includes a header and a plurality of heat exchange tubes whose ends are inserted into a plurality of tube insertion holes formed in the header. The header is divided into a plurality of comb-shaped slits each having a comb-like shape corresponding to the tube insertion hole, and the header member A is substantially aligned with the header member A. A header member B that completes the overall shape of the header is constructed, and a flange is formed at the end of each heat exchange tube. The flange is attached to at least the header member A with respect to the heat exchange tube. It extends on both sides of the comb-shaped slit of the header member A, and is joined in a form hooked on the header member A.

上記熱交換器においては、ヘッダ部材Ａの櫛状形状は、各スリットがヘッダ部材Ａの側方に向けて開口する開放端を有し、かつ、該側方から前記開放端を通して上記熱交換用チューブが該スリット内に挿入され挿入後に上記フランジが該スリットの両側で上記ヘッダ部材Ａに引っ掛けられるように形成されている構造とすることができる。   In the heat exchanger, the comb-like shape of the header member A has an open end in which each slit opens toward the side of the header member A, and the heat exchange is performed through the open end from the side. The tube may be inserted into the slit, and the flange may be formed to be hooked on the header member A on both sides of the slit after insertion.

また、上記フランジが、例えば環状に形成され、上記ヘッダ部材Ａとともに上記ヘッダ部材Ｂに対しても接合されている構造とすることができる。   In addition, the flange may be formed in, for example, an annular shape and joined to the header member B together with the header member A.

また、上記ヘッダ部材Ｂの、ヘッダ部材Ａの各スリットに対応する位置に、該スリットの開放端に嵌合する突起が設けられている構造とすることもできる。このようにすれば、スリットと突起との嵌合により、ヘッダ部材Ａとヘッダ部材Ｂがより正確にかつ容易に位置合わせされる。   Moreover, it can also be set as the structure by which the protrusion fitted to the open end of this slit is provided in the position corresponding to each slit of the header member A of the said header member B. FIG. If it does in this way, header member A and header member B will be aligned more correctly and easily by fitting with a slit and projection.

上記熱交換用チューブの形状としては特に限定しないが、扁平チューブからなる場合に本発明による効果が大きい。また、熱交換用チューブ内には、インナーフィンを設けておくこともできる。   Although it does not specifically limit as a shape of the said tube for heat exchange, The effect by this invention is large when it consists of a flat tube. In addition, an inner fin can be provided in the heat exchange tube.

また、上記複数の熱交換用チューブ間にはアウターフィンを介装し、熱交換用チューブとアウターフィンとの交互積層構造とすることもできる。   In addition, an outer fin may be interposed between the plurality of heat exchange tubes, and an alternately laminated structure of the heat exchange tubes and the outer fins may be employed.

このような熱交換器は、各部品が組み付けられたのち全体を炉中で一括ろう付けすることが可能である。   Such a heat exchanger can be brazed together in the furnace after the components are assembled.

また、本発明に係る熱交換器の用途はとくに限定しないが、大量生産される車両用空調装置に用いられるものからなる場合（車両用空調装置用蒸発器）、とくに大きな効果が得られる。   Further, the use of the heat exchanger according to the present invention is not particularly limited. However, when the heat exchanger is used for mass-produced vehicle air conditioners (vehicle air conditioner evaporators), particularly great effects are obtained.

本発明に係る熱交換器によれば、端部にフランジ加工した熱交換用チューブを、櫛状に形成されたヘッダ部材Ａに引っ掛ける構造としたため、チューブとヘッダの組立が極めて容易になる。とくに、熱交換用チューブの端部をヘッダ部材Ａの櫛状形状のスリットに対し側方から挿入できるようになり、従来のチューブ用穴に挿入する場合に比べ、挿入作業が容易化される。さらに、上記スリットとチューブ端部との嵌合構造についても、それほど厳格な寸法精度は要求されないので、部品寸法管理が容易になり、その状態にて所望のろう付けが可能になる。   According to the heat exchanger according to the present invention, since the heat exchange tube flanged at the end is hooked on the header member A formed in a comb shape, the assembly of the tube and the header becomes extremely easy. In particular, the end portion of the heat exchange tube can be inserted into the comb-shaped slit of the header member A from the side, and the insertion operation is facilitated as compared with the case of inserting into the conventional tube hole. Further, the fitting structure between the slit and the tube end portion does not require so strict dimensional accuracy, so that the dimensional management becomes easy and desired brazing can be performed in this state.

また、フランジをヘッダ内面（ヘッダ部材Ａの内面、あるいは、ヘッダ部材Ａとヘッダ部材Ｂの両部材の内面）に接合する構造であるため、チューブとヘッダのろう付け面積を大きくとることが可能になり、ろう付け不良の発生を確実に解消できる。   In addition, since the flange is joined to the header inner surface (the inner surface of the header member A or the inner surfaces of both the header member A and the header member B), the brazing area between the tube and the header can be increased. Therefore, it is possible to reliably eliminate the occurrence of brazing defects.

以下に、本発明の望ましい実施の形態を、図面を参照して説明する。
図１〜図８は、本発明の第１実施態様に係る熱交換器を示している。図１および図２において、１は熱交換器全体を示しており、熱交換器１は、一対のヘッダ２、３と、該ヘッダ２、３に形成された複数のチューブ挿入穴に各端部がそれぞれ挿通され複数積層される熱交換用扁平チューブ４と、各チューブ４間および最外層のチューブ４の外側に配置されたアウターフィン５と、最外層のアウターフィン５の外側に配置されたサイドプレート６、７を有している。各ヘッダ２、３は、本実施態様では２連のタンク構造に構成されており、図１における上側のヘッダ２に流体（例えば、冷媒）の入口パイプ８および出口パイプ９が設けられている。 Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.
1 to 8 show a heat exchanger according to a first embodiment of the present invention. 1 and 2, reference numeral 1 denotes the entire heat exchanger. The heat exchanger 1 has a pair of headers 2 and 3 and a plurality of tube insertion holes formed in the headers 2 and 3 at their respective end portions. Are inserted and stacked, a plurality of flat tubes 4 for heat exchange, outer fins 5 disposed between the tubes 4 and outside the outermost tube 4, and sides disposed outside the outermost outer fin 5. Plates 6 and 7 are provided. In the present embodiment, each header 2, 3 has a double tank structure, and an upper pipe 2 in FIG. 1 is provided with an inlet pipe 8 and an outlet pipe 9 for fluid (for example, refrigerant).

各ヘッダ２、３は、図３、図４にも示すように、互いに分割された２つの部材である、ヘッダ部材Ａ（１０）とヘッダ部材Ｂ（１１）との接合構造により実質的にヘッダ２、３の全体形状が完成されるようになっている。このうちヘッダ部材Ａ（１０）は、図３に示すように、半円状の横断面形状を有する部位を２連に接続した構造に構成され、上記チューブ挿入穴に相当するように形成されたスリット１２を有する櫛状形状に形成されている。本実施態様では２連のタンク構造に構成されているので、それに対応させて櫛状形状もヘッダ部材Ａ（１０）の両側方に向けて形成されている。両側の各櫛状形状は、各スリット１２がヘッダ部材Ａ（１０）の側方に向けて開放端１３を有し、かつ、後述の如く側方から開放端１３を通して熱交換用チューブ４が該スリット１２内に挿入され挿入後に後述のフランジが該スリット１２の両側でヘッダ部材Ａ（１０）に引っ掛けられるように形成されている。各スリット１２およびその開放端１３における幅である寸法Ｃは、熱交換用チューブ４の外面における厚みよりも少し大き目の寸法に設定されている。ただし、それほど厳格な寸法管理は不要である。   As shown in FIGS. 3 and 4, each header 2, 3 is substantially a header by a joining structure of a header member A (10) and a header member B (11), which are two members divided from each other. Two or three whole shapes are completed. Among them, the header member A (10) has a structure in which the portions having a semicircular cross-sectional shape are connected in series, as shown in FIG. 3, and is formed so as to correspond to the tube insertion hole. It is formed in a comb shape having slits 12. In the present embodiment, since the tank structure is double, the comb-like shape is formed toward both sides of the header member A (10). Each comb-like shape on both sides has each slit 12 having an open end 13 toward the side of the header member A (10), and the heat exchanging tube 4 passes through the open end 13 from the side as will be described later. A flange, which will be described later, is inserted into the slit 12 and is formed so as to be hooked on the header member A (10) on both sides of the slit 12. The dimension C, which is the width of each slit 12 and its open end 13, is set to be slightly larger than the thickness of the outer surface of the heat exchange tube 4. However, strict dimensional management is not necessary.

ヘッダ部材Ｂ（１１）は、図４に示すように、半円状の横断面形状を有する部位を２連に接続した構造に構成され、ヘッダ部材Ｂ（１１）にはスリットは設けられていない。このヘッダ部材Ｂ（１１）をヘッダ部材Ａ（１０）に合わせて接合することにより（ヘッダ部材Ｂ（１１）の各半円部とヘッダ部材Ａ（１０）の各半円部とを合わせて円形横断面形状を形成するように接合することにより）、ヘッダ２、３の所定の全体形状が完成されるようになっている。   As shown in FIG. 4, the header member B (11) is configured in a structure in which portions having a semicircular cross-sectional shape are connected in series, and the header member B (11) is not provided with a slit. . By joining this header member B (11) to the header member A (10) and joining them (the semicircular portions of the header member B (11) and the semicircular portions of the header member A (10) are combined into a circular shape. By joining together to form a cross-sectional shape), the predetermined overall shape of the headers 2 and 3 is completed.

各熱交換用チューブ４は、本実施態様では図５に示すように、一対のチューブプレート１４ａ、１４ｂの重ね合わせ構造に構成され、内部に形成されるチューブ長手方向に延びる流路１５内に、波形のインナーフィン１６が挿入されている。この熱交換用チューブ４の両端部には、図６にも示すように、該熱交換用チューブ４が前記ヘッダ部材Ａ（１０）のスリット１２に側方から挿入された際、該スリット１２の両側に延び該スリット１２の両側でヘッダ部材Ａ（１０）に引っ掛けられることが可能なフランジ１７が、熱交換用チューブ４と一体に形成されている。このフランジ１７は、本実施態様では、各チューブプレート１４ａ、１４ｂの端部に加工されたフランジ形成部１７ａ、１７ｂの合わせ構造に形成されている。また、図６（Ｂ）に示すように、フランジ１７のチューブ厚み方向寸法Ｄは、チューブ厚み寸法Ｅよりも大きく設定されている。したがって、熱交換用チューブ４がその厚み寸法Ｅ部分でスリット１２に側方から挿入されたのちには、フランジ１７がスリット１２の両側部分で確実に引っ掛けられるようになっている。   As shown in FIG. 5, each heat exchange tube 4 is configured in a stacked structure of a pair of tube plates 14 a and 14 b in the flow path 15 extending in the tube longitudinal direction formed inside, as shown in FIG. 5. A corrugated inner fin 16 is inserted. As shown in FIG. 6, when the heat exchange tube 4 is inserted into the slit 12 of the header member A (10) from the side as shown in FIG. A flange 17 that extends to both sides and can be hooked on the header member A (10) on both sides of the slit 12 is formed integrally with the heat exchange tube 4. In the present embodiment, the flange 17 is formed in a combined structure of flange forming portions 17a and 17b processed at the end portions of the tube plates 14a and 14b. As shown in FIG. 6B, the tube thickness direction dimension D of the flange 17 is set to be larger than the tube thickness dimension E. Therefore, after the heat exchanging tube 4 is inserted into the slit 12 at the thickness dimension E portion from the side, the flange 17 is securely hooked at both side portions of the slit 12.

本実施態様では、フランジ１７は、横断面形状が円形の環状フランジに形成されており、図７、図８に示すように、ヘッダ部材Ａ（１０）のスリット１２に側方から挿入されたのちヘッダ部材Ｂ（１１）がヘッダ部材Ａ（１０）に合わせられた際には、ヘッダ部材Ａ（１０）の内面とヘッダ部材Ｂ（１１）の内面の両方に接触されるようになっている。この状態でヘッダの内面にろう付け接合されるので、フランジ１７とヘッダの内面との接合部１８はヘッダの内周面全周にわたって延びるように形成される。図８に示すように組み立てられた各部品が、炉中で一括ろう付けされる。   In this embodiment, the flange 17 is formed into an annular flange having a circular cross section, and after being inserted from the side into the slit 12 of the header member A (10) as shown in FIGS. When the header member B (11) is aligned with the header member A (10), both the inner surface of the header member A (10) and the inner surface of the header member B (11) are brought into contact with each other. Since it is brazed and joined to the inner surface of the header in this state, the joint 18 between the flange 17 and the inner surface of the header is formed so as to extend over the entire inner peripheral surface of the header. The parts assembled as shown in FIG. 8 are collectively brazed in a furnace.

このように構成された熱交換器１においては、端部にフランジ加工した熱交換用チューブ４を、櫛状に形成されたヘッダ部材Ａ（１０）のスリット１２に側方から挿入されたのち、該スリット１２の両側でヘッダ部材Ａ（１０）の内面に引っ掛ける構造としたので、スリット１２の寸法や熱交換用チューブ４の厚み寸法をそれほど厳格に管理しないでも、確実にかつ容易にチューブ挿入を行うことができる。また、フランジ１７によってヘッダ部材Ａ（１０）との接合面積、あるいはヘッダ部材Ａ（１０）およびヘッダ部材Ｂ（１１）との接合面積が大きく確保されるので、チューブとヘッダ間のろう付け不良も確実に防止される。すなわち、部品寸法管理が容易化され、組立が容易化されつつ、ろう付け接合の確実性が向上されることになる。   In the heat exchanger 1 configured as described above, after the heat exchange tube 4 flanged at the end is inserted from the side into the slit 12 of the header member A (10) formed in a comb shape, Since the structure is such that the both sides of the slit 12 are hooked on the inner surface of the header member A (10), the tube can be inserted surely and easily even if the dimensions of the slit 12 and the thickness of the heat exchange tube 4 are not controlled so strictly. It can be carried out. Moreover, since the joining area with header member A (10) or the joining area with header member A (10) and header member B (11) is ensured by the flange 17, the brazing defect between a tube and a header is also prevented. It is surely prevented. That is, part dimension management is facilitated and assembly is facilitated, and the reliability of brazing joint is improved.

図９は、本発明の第２実施態様に係る熱交換器のヘッダとチューブとの接合部を示している。本実施態様においては、ヘッダ部材Ｂ（２１）に、ヘッダ部材Ａ（１０）の各スリット１２に対応する位置に、該スリット１２の開放端１３に嵌合する突起２２が、ヘッダ部材Ｂ（２１）と一体に形成されている。突起２２がが対応するスリット１２の開放端１３に嵌合されることにより、ヘッダ部材Ｂ（２１）がヘッダ部材Ａ（１０）に対し、確実に望ましい所定の位置に決められる。その他の構成、作用、効果は前述の第１実施態様に準じる。   FIG. 9 shows a joint between the header and the tube of the heat exchanger according to the second embodiment of the present invention. In this embodiment, the header member B (21) has a protrusion 22 that fits into the open end 13 of the slit 12 at a position corresponding to each slit 12 of the header member A (10). ). By fitting the protrusions 22 into the open ends 13 of the corresponding slits 12, the header member B (21) is reliably determined at a desired predetermined position with respect to the header member A (10). Other configurations, operations, and effects are the same as those in the first embodiment.

本発明に係る熱交換器の構造は、あらゆる熱交換器に適用可能であり、とくに大量生産され組立、ろう付けの容易性、確実性がより求められる車両用空調装置に使用される熱交換器（例えば、冷媒の蒸発器）に好適なものである。   The structure of the heat exchanger according to the present invention can be applied to any heat exchanger, and is particularly used in a vehicle air conditioner that is mass-produced and requires more ease of assembly, brazing, and reliability. For example, it is suitable for a refrigerant evaporator.

本発明の第１実施態様に係る熱交換器の斜視図である。It is a perspective view of the heat exchanger which concerns on the 1st embodiment of this invention. 図１の装置の部分分解斜視図である。FIG. 2 is a partially exploded perspective view of the apparatus of FIG. 1. 図２の装置のヘッダ部材Ａの拡大斜視図である。It is an expansion perspective view of the header member A of the apparatus of FIG. 図２の装置のヘッダ部材Ｂの拡大斜視図である。It is an expansion perspective view of the header member B of the apparatus of FIG. 図２の装置の熱交換用チューブの拡大分解斜視図である。It is an expansion disassembled perspective view of the tube for heat exchange of the apparatus of FIG. 図５の装置の部分拡大正面図（Ａ）、部分拡大側面図（Ｂ）である。FIG. 6 is a partially enlarged front view (A) and a partially enlarged side view (B) of the apparatus of FIG. 5. 図１の装置の組立時の状態を示す部分拡大斜視図である。It is a partial expansion perspective view which shows the state at the time of the assembly of the apparatus of FIG. 図１の装置の組立・接合後の状態を示す部分拡大縦断面図である。FIG. 2 is a partially enlarged longitudinal sectional view showing a state after assembly and joining of the apparatus of FIG. 1. 本発明の第２実施態様に係る熱交換器の部分分解斜視図である。It is a partial exploded perspective view of the heat exchanger which concerns on the 2nd embodiment of this invention.

符号の説明Explanation of symbols

１ 熱交換器
２、３ ヘッダ
４ 熱交換用チューブ（扁平チューブ）
５ アウターフィン
６、７ サイドプレート
８ 入口パイプ
９ 出口パイプ
１０ ヘッダ部材Ａ
１１、２１ ヘッダ部材Ｂ
１２ スリット
１３ 開放端
１４ａ、１４ｂ チューブプレート
１５ 流路
１６ インナーフィン
１７ フランジ
１７ａ、１７ｂ フランジ形成部
１８ 接合部
２２ 突起 1 Heat exchanger 2, 3 Header 4 Heat exchange tube (flat tube)
5 Outer fins 6 and 7 Side plate 8 Inlet pipe 9 Outlet pipe 10 Header member A
11, 21 Header member B
12 Slit 13 Open end 14a, 14b Tube plate 15 Flow path 16 Inner fin 17 Flange 17a, 17b Flange forming part 18 Joining part 22 Projection

Claims (8)

ヘッダと、該ヘッダに形成された複数のチューブ挿通穴に端部が挿通される複数の熱交換用チューブとを有する熱交換器において、前記ヘッダを、互いに分割された、櫛状に形成され櫛状形状の各スリットが前記チューブ挿通穴に相当するように形成されたヘッダ部材Ａと、該ヘッダ部材Ａに合わされて実質的にヘッダ全体形状を完成するヘッダ部材Ｂとの接合構造に構成し、各熱交換用チューブの端部にフランジを形成するとともに、該熱交換用チューブを、少なくとも前記ヘッダ部材Ａに対し、前記フランジが前記ヘッダ部材Ａの櫛状形状のスリットの両側に延び前記ヘッダ部材Ａに引っ掛けられた形態にて接合したことを特徴とする熱交換器。   In a heat exchanger having a header and a plurality of heat exchange tubes whose ends are inserted through a plurality of tube insertion holes formed in the header, the header is divided into combs and formed into a comb shape. A header member A formed so that each slit in the shape corresponds to the tube insertion hole, and a header member B that is fitted to the header member A and substantially completes the overall shape of the header, A flange is formed at an end of each heat exchange tube, and at least the header member A is connected to both sides of the comb-shaped slit of the header member A. A heat exchanger characterized by being joined in a form hooked on A. 前記ヘッダ部材Ａの櫛状形状は、各スリットがヘッダ部材Ａの側方に向けて開口する開放端を有し、かつ、該側方から前記開放端を通して前記熱交換用チューブが該スリット内に挿入され挿入後に前記フランジが該スリットの両側で前記ヘッダ部材Ａに引っ掛けられるように形成されている、請求項１に記載の熱交換器。   The comb-like shape of the header member A has an open end in which each slit opens to the side of the header member A, and the heat exchange tube passes through the open end from the side into the slit. 2. The heat exchanger according to claim 1, wherein the heat exchanger is formed so as to be hooked on the header member A on both sides of the slit after being inserted. 前記フランジが、環状に形成され、前記ヘッダ部材Ａとともに前記ヘッダ部材Ｂに対しても接合されている、請求項１または２に記載の熱交換器。   The heat exchanger according to claim 1 or 2, wherein the flange is formed in an annular shape and joined to the header member B together with the header member A. 前記ヘッダ部材Ｂの、前記ヘッダ部材Ａの各スリットに対応する位置に、該スリットの開放端に嵌合する突起が設けられている、請求項２または３に記載の熱交換器。   The heat exchanger according to claim 2 or 3, wherein a protrusion that fits to an open end of the slit is provided at a position of the header member B corresponding to each slit of the header member A. 前記熱交換用チューブが扁平チューブからなる、請求項１〜４のいずれかに記載の熱交換器。   The heat exchanger according to claim 1, wherein the heat exchange tube is a flat tube. 複数の熱交換用チューブ間にアウターフィンが介装されている、請求項１〜５のいずれかに記載の熱交換器。   The heat exchanger according to any one of claims 1 to 5, wherein an outer fin is interposed between the plurality of heat exchange tubes. 各部品が組み付けられたのち全体が炉中で一括ろう付けされている、請求項１〜６のいずれかに記載の熱交換器。   The heat exchanger according to any one of claims 1 to 6, wherein the entire parts are assembled together in a furnace after being assembled. 車両用空調装置に用いられるものからなる、請求項１〜７のいずれかに記載の熱交換器。   The heat exchanger according to any one of claims 1 to 7, wherein the heat exchanger is used for a vehicle air conditioner.
JP2005204126A 2005-07-13 2005-07-13 Heat exchanger Expired - Fee Related JP4663434B2 (en)

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