JP2006010102A - Stacked heat exchanger and its manufacturing method - Google Patents

Stacked heat exchanger and its manufacturing method Download PDF

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Publication number
JP2006010102A
JP2006010102A JP2004183613A JP2004183613A JP2006010102A JP 2006010102 A JP2006010102 A JP 2006010102A JP 2004183613 A JP2004183613 A JP 2004183613A JP 2004183613 A JP2004183613 A JP 2004183613A JP 2006010102 A JP2006010102 A JP 2006010102A
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Japan
Prior art keywords
heat exchanger
tube
tube forming
laminated heat
forming plates
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JP2004183613A
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Japanese (ja)
Inventor
Tomohiro Chiba
朋広 千葉
Takayuki Ono
隆行 大野
Kengo Bun
健吾 文
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Sanden Corp
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Sanden Corp
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Priority to JP2004183613A priority Critical patent/JP2006010102A/en
Priority to US11/150,139 priority patent/US20050279485A1/en
Priority to EP05253669A priority patent/EP1610080A3/en
Priority to CA002510431A priority patent/CA2510431A1/en
Priority to CN200510079075.4A priority patent/CN1712875A/en
Publication of JP2006010102A publication Critical patent/JP2006010102A/en
Pending legal-status Critical Current

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    • 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
    • F28D1/0308—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 the conduits being formed by paired plates touching each other
    • F28D1/0325—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 the conduits being formed by paired plates touching each other the plates having lateral openings therein for circulation of the heat-exchange medium from one conduit to another
    • F28D1/0333—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 the conduits being formed by paired plates touching each other the plates having lateral openings therein for circulation of the heat-exchange medium from one conduit to another the plates having integrated connecting members
    • 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
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/008—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for vehicles
    • F28D2021/0085—Evaporators

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

Abstract

<P>PROBLEM TO BE SOLVED: To provide a stacked heat exchanger and its manufacturing method capable of reducing kinds of tube molding plates forming a tube, and remarkably improving assembling workability in fixing the tube molding plates. <P>SOLUTION: In this stacked heat exchanger constituted by alternately stacking tubes formed by bonding the pair of tube molding plates to each other and outer fins, the pair of tube molding plates are fixed by burring parts which are substantially simultaneously burring processed at hole fitting parts of both tube molding plates. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、一対の成形プレートを互いに接合して形成されるチューブと、アウターフィンとが交互に積層される積層型熱交換器およびその製造方法に関する。   The present invention relates to a laminated heat exchanger in which a tube formed by joining a pair of molded plates to each other and outer fins are alternately laminated, and a method for manufacturing the same.

近年、自動車用空調装置の分野においては、車室内における設置スペースの狭小化等により空調装置の小型化の要請が高まっている。とくに、蒸発器の分野においては、奥行き寸法（通風方向）の短縮の要請が高まっている。このため、蒸発器により高性能な熱交換性能が要求される。このような要請に対応すべく、チューブを２枚の成形プレートから構成し、内部に形成される流路にはインナーフィンを設けるタイプの蒸発器がよく見られる。   In recent years, in the field of automotive air conditioners, there is an increasing demand for downsizing of air conditioners due to the narrowing of installation space in the passenger compartment. In particular, in the field of evaporators, there is an increasing demand for shortening the depth dimension (ventilation direction). For this reason, a high-performance heat exchange performance is required by the evaporator. In order to meet such demands, a type of evaporator in which a tube is constituted by two molded plates and an inner fin is provided in a flow path formed inside is often seen.

このような、蒸発器としては、図１ないし図７に示すような、チューブとフィンとが交互に積層された積層型熱交換器がよく知られている。図１おいて１は積層型熱交換器を示している。積層型熱交換器１はチューブ２とアウターフィン３とが交互に積層されたコア部４を有している。コア部４の最外層にはエンドプレート５、６が設けられている。また、コア部４の両端部には後述のチューブ成形プレートに形成されたカップ部によりタンク
７、８が構成されている。 As such an evaporator, a laminated heat exchanger in which tubes and fins are alternately laminated as shown in FIGS. 1 to 7 is well known. In FIG. 1, reference numeral 1 denotes a stacked heat exchanger. The laminated heat exchanger 1 has a core portion 4 in which tubes 2 and outer fins 3 are alternately laminated. End plates 5 and 6 are provided on the outermost layer of the core portion 4. In addition, tanks 7 and 8 are formed at both ends of the core portion 4 by cup portions formed on a tube forming plate described later.

タンク７のタンク部７ａには流体（たとえば、冷媒）を熱交換器１内に導入する入口パイプ９が接続されている。一方、タンク７のタンク部７ｂには熱交換器１から流体を導出するための出口パイプ１０が接続されている。このような熱交換器１において流体は、熱交換器１内において所定の流体流路が形成され、該流路を流通する過程において外部を通過する空気との間で熱交換されるようになっている。   An inlet pipe 9 for introducing a fluid (for example, refrigerant) into the heat exchanger 1 is connected to the tank portion 7 a of the tank 7. On the other hand, an outlet pipe 10 for leading fluid from the heat exchanger 1 is connected to the tank portion 7 b of the tank 7. In such a heat exchanger 1, a predetermined fluid flow path is formed in the heat exchanger 1, and heat is exchanged between the fluid and air passing outside in the process of flowing through the flow path. ing.

チューブ成形プレート１１の外観は略図３に示すように示すようになっており、チューブ成形プレート１１の長手方向端部には外側に凸となるカップ部１２、１３、１４、１５が構成されている。なお、カップ部１２、１３、１４、１５には各チューブ成形プレートの機能に応じて適宜、流通孔１６、１７、１８、１９が設けられている。また、チューブ成形プレート１１の長手方向にチューブ２内部に流体通路を構成するための凸部２０、２１が形成されている。そして、このようなチューブ成形プレート１１を互いに固定した後接合（たとえば、ろう付け）することにより、チューブ２が形成されるようになっている。   The appearance of the tube forming plate 11 is as shown in FIG. 3, and cup portions 12, 13, 14, and 15 that protrude outward are formed at the longitudinal ends of the tube forming plate 11. . The cup portions 12, 13, 14, and 15 are provided with flow holes 16, 17, 18, and 19 as appropriate according to the function of each tube forming plate. Further, convex portions 20 and 21 for forming a fluid passage are formed in the tube 2 in the longitudinal direction of the tube forming plate 11. And the tube 2 is formed by joining (for example, brazing) after fixing such a tube forming plate 11 mutually.

上記のようなチューブ成形プレートは内部にフラックスを塗布した後、たとえば波形のインナーフィン（図示略）を凸部２０、２１の内側に挿入し、一方のチューブ成形プレートの内側に向けて立設されたバール部２７を他方のチューブ成形プレートの孔２８に挿入した後（図８（ａ））、パンチ２９によりバール部２７の先端を拡管することにより両チューブ成形プレートが固定されるようになっている（図８（ｂ））。   The tube forming plate as described above, after flux is applied to the inside, for example, corrugated inner fins (not shown) are inserted inside the convex portions 20 and 21 and are erected toward the inside of one of the tube forming plates. After inserting the burl part 27 into the hole 28 of the other tube forming plate (FIG. 8A), both ends of the tube forming plate are fixed by expanding the tip of the burl part 27 with a punch 29. (FIG. 8B).

このような固定方法を用いる場合、熱交換器１内に所定の流路を形成するためには、図４ないし図７に示すようなチューブ成形プレートが必要になる。つまり、図４に示すチューブ成形プレート２２のようにカップ部１２、１４を連通し、該連通部側にバール部２７を形成したもの（連通プレート）、図５に示すチューブ成形プレート２３のようにカップ部１２、１４を連通し、該連通部側に孔２８を形成したもの（連通プレート）、図６に示すチューブ成形プレート２４のように一部のカップ部に流通孔が形成されていないもの（仕切りプレート）、図７に示すチューブ成形プレート２６のように各カップ部が互いに独立しているものの合計４種類のチューブ成形プレートが必要になる。そして、これらチューブ成形プレート２２、２３、２４、２６を適宜組み合わせることにより、積層型熱交換器１内に所定の流路が形成されるようになっている。   When such a fixing method is used, a tube forming plate as shown in FIGS. 4 to 7 is required to form a predetermined flow path in the heat exchanger 1. That is, like the tube forming plate 22 shown in FIG. 4, the cup portions 12 and 14 are communicated, and the burl portion 27 is formed on the communicating portion side (communication plate), like the tube forming plate 23 shown in FIG. The cup parts 12 and 14 are communicated, and a hole 28 is formed on the side of the communication part (communication plate), and the cup molding plate 24 shown in FIG. (Partition plate) A total of four types of tube forming plates are required although the cup portions are independent of each other as in the tube forming plate 26 shown in FIG. A predetermined flow path is formed in the laminated heat exchanger 1 by appropriately combining these tube forming plates 22, 23, 24, and 26.

この場合、同一部材であるチューブ成形プレート２６同士を固定するためにはプレス加工されたチューブ成形プレートを順次１８０度回転させながら組み合わせバール部２７を孔２８に挿入し、さらにバール部２７の先端を拡管する煩雑な作業が必要になる。また、連通プレートとしてはバール部と孔との位置が反対の２種類のチューブ成形プレート２２、２３が必要になる。   In this case, in order to fix the tube forming plates 26, which are the same member, the combined bar portions 27 are inserted into the holes 28 while sequentially rotating the tube forming plates that have been processed by 180 degrees, and the tip of the bar portion 27 is moved further. The troublesome work of expanding the tube is required. Further, as the communication plate, two types of tube forming plates 22 and 23 in which the positions of the bar part and the hole are opposite are necessary.

なお、このような問題を解決すべく、チューブ成形プレート同士を組み合わせ一の工程で両チューブ成形プレートに同時にバール部を形成し、該バール部によりチューブ成形プレートを固定しようとする提案もなされているが（特許文献１）、バール部と該バール部の中央に形成される孔はそもそも径が異なるため、これらを一つの工程で同時に精度よく加工するのは極めて困難である。
実開昭５５−１２６５８０号公報 In addition, in order to solve such a problem, a proposal has been made to combine the tube forming plates and simultaneously form the bar portions on both tube forming plates in one step, and to fix the tube forming plate by the bar portions. However, since the diameter of the hole formed in the center of the bar part and the bar part is different in the first place, it is extremely difficult to process these simultaneously and accurately in one process.
Japanese Utility Model Publication No. 55-126580

そこで本発明の課題は、チューブを形成するチューブ成形プレートの種類を減じ、しかもチューブ成形プレートを固定する際の組み付け作業性を大幅に向上可能な積層型熱交換器およびその製造方法を提供することにある。   SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a stacked heat exchanger that can reduce the types of tube forming plates forming the tube and can greatly improve the assembly workability when fixing the tube forming plate, and a method for manufacturing the same. It is in.

上記課題を解決するために、本発明に係る積層型熱交換器は、一対のチューブ成形プレートを互いに接合して形成されるチューブとアウターフィンとが交互に積層された積層型熱交換器において、前記一対のチューブ成形プレート同士が両者の孔合せ位置にて実質的に同時にバーリング加工されたバーリング部により固定されていることを特徴とするものからなる。   In order to solve the above problems, a stacked heat exchanger according to the present invention is a stacked heat exchanger in which tubes and outer fins are alternately stacked by joining a pair of tube forming plates to each other. The pair of tube forming plates are fixed to each other by a burring portion that is burringed substantially simultaneously at the hole-matching position.

上記バーリング部の先端には拡管部が設けられることが好ましい。このような、拡管部を構成すれば、チューブ成形プレート同士をより強固に固定できる。   It is preferable that a tube expansion portion is provided at the tip of the burring portion. If such a pipe expansion part is comprised, tube forming plates can be fixed more firmly.

また、上記課題を解決するために、本発明に係る積層型熱交換器の製造方法は、一対のチューブ成形プレートを互いに接合して形成されるチューブとアウターフィンとが交互に積層される積層型熱交換器を製造するに際し、各チューブ成形プレートにそれぞれ孔を穿設し、両チューブ成形プレートを組み合わせて前記孔同士を位置合せし、該一合せ部にバーリング加工を施してチューブ成形プレート同士を固定することを特徴とする方法からなる。   In addition, in order to solve the above-mentioned problem, the manufacturing method of the laminated heat exchanger according to the present invention is a laminated type in which tubes and outer fins are alternately laminated by joining a pair of tube forming plates to each other. When manufacturing the heat exchanger, holes are formed in each tube forming plate, both the tube forming plates are combined, the holes are aligned, and a burring process is performed on the aligned portion to connect the tube forming plates together. It consists of the method characterized by fixing.

上記のような積層型熱交換器および積層型熱交換器の製造方法においては、予め孔が穿設されたチューブ成形プレート同士を孔合せ位置にて組み合わせた後、該孔に、たとえばパンチ等を圧入しバーリング加工を施せば、孔合せ位置に両チューブ成形プレートの一部からなるバール部が同時に一体的に形成される。したがって、バール部を孔に挿入するような煩雑な作業を廃止できる。また、バール部および孔の位置を反対にした２種類のチューブ成形プレート（連通プレート）を準備する必要はなくなるので、チューブを形成するチューブ成形プレートの種類を減じ、しかもチューブ成形プレートを固定する際の組み付け作業性を大幅に向上することができる。   In the laminated heat exchanger and the manufacturing method of the laminated heat exchanger as described above, after combining tube forming plates with holes previously formed at the hole alignment positions, for example, punches or the like are put into the holes. If the burring process is performed by press-fitting, a burl portion composed of a part of both tube forming plates is integrally formed at the hole alignment position at the same time. Therefore, the troublesome work of inserting the bar portion into the hole can be eliminated. In addition, since it is not necessary to prepare two types of tube forming plates (communication plates) with the positions of the bar part and the hole reversed, the number of types of tube forming plates forming the tube is reduced and the tube forming plate is fixed. Assembling workability can be greatly improved.

以下に、本発明の積層型熱交換器およびその製造方法の望ましい実施の形態について、図面を参照しながら説明する。
本発明に係る積層型熱交換器は、車両用空調装置に用いられるエバポレータとして好適なものであり、その外観は図１と略同様に形成されている。 Hereinafter, preferred embodiments of a laminated heat exchanger and a manufacturing method thereof according to the present invention will be described with reference to the drawings.
The laminated heat exchanger according to the present invention is suitable as an evaporator for use in a vehicle air conditioner, and has an appearance substantially the same as that shown in FIG.

本発明においては、チューブ成形プレートは図９ないし図１１に示すようなものから構成できる。なお、図９ないし図１１に示すチューブ成形プレートの表裏には予めろう材がクラッドされており、チューブ成形プレートの表裏面にはろう付けに必要なフラックスが均一に塗布された状態になっている。したがって、積層型熱交換器１の各構成部材を仮組みし、炉中においてろう付けすればチューブ成形プレート同士、ひいてはその他の各構成部材同士が一括してろう付けされるようになっている。   In the present invention, the tube forming plate can be constructed as shown in FIGS. Note that brazing material is clad in advance on the front and back surfaces of the tube forming plate shown in FIGS. 9 to 11, and the flux necessary for brazing is uniformly applied to the front and back surfaces of the tube forming plate. . Accordingly, if the constituent members of the laminated heat exchanger 1 are temporarily assembled and brazed in a furnace, the tube forming plates, and by extension, the other constituent members are brazed together.

図９に示すチューブ成形プレート（連通プレート）３０の長手方向端部には外側に凸となるカップ部３１、３２、３３、３４が構成されている。なお、カップ部３１、３２、３３、３４には流通孔３５、３６、３７、３８がもうけられている。カップ部３１とカップ部３３との間には連通路５５が設けられており、両カップ部３１、３３は互いに連通されている。また、チューブ成形プレート３０の長手方向にはチューブ２内部に流体通路を構成するための凸部３９、４０が形成されている。そして、このようなチューブ成形プレート３０を互いに固定した後接合（たとえば、ろう付け）することにより、チューブ２が形成されるようになっている。   Cup-shaped portions 31, 32, 33, and 34 that protrude outward are formed at the longitudinal ends of the tube forming plate (communication plate) 30 shown in FIG. The cup portions 31, 32, 33, 34 are provided with flow holes 35, 36, 37, 38. A communication passage 55 is provided between the cup part 31 and the cup part 33, and both the cup parts 31 and 33 communicate with each other. In the longitudinal direction of the tube forming plate 30, convex portions 39 and 40 for forming a fluid passage are formed inside the tube 2. And the tube 2 is formed by joining (for example, brazing) after fixing such a tube formation plate 30 mutually.

具体的には、チューブ成形プレート３０同士の接合は以下のようにしてなされる。チューブ成形プレート３０の両端に孔４１を穿設し、孔４１同士を位置合せするようにチューブ成形プレート３０同士を組み合わせる（図１２（ａ））。なお、このような孔４１はチューブ成形プレート３０をプレス加工する際に同時に穿設することも可能である。また、両チューブ成形プレート３０同士を組み合わせる際には凸部３９、４０に、たとえば、波形インナーフィン（図示略）が挿入されている。この状態におけるチューブ２の端部を図１４に示してある。次に、孔４１同士の位置が合致していることを確認しながらダイス４３で固定し、パンチ４４を孔４１に圧入し（図１２（ｂ））、両チューブ成形プレート３０の孔合せ位置５６に両チューブ成形プレート３０の一部からなるバーリング部４５、４６が同時に一体的に形成される（図１２（ｃ））。   Specifically, the tube forming plates 30 are joined together as follows. Holes 41 are formed at both ends of the tube forming plate 30, and the tube forming plates 30 are combined so that the holes 41 are aligned with each other (FIG. 12 (a)). Such a hole 41 can be formed at the same time when the tube forming plate 30 is pressed. Moreover, when combining both tube shaping | molding plates 30, corrugated inner fin (illustration omitted) is inserted in the convex parts 39 and 40, for example. The end of the tube 2 in this state is shown in FIG. Next, while confirming that the positions of the holes 41 coincide with each other, the holes are fixed with a die 43, the punch 44 is press-fitted into the holes 41 (FIG. 12B), and the hole alignment positions 56 of both tube forming plates 30 are obtained. The burring portions 45 and 46, which are part of both tube forming plates 30, are integrally formed at the same time (FIG. 12 (c)).

さらに、拡管用パンチ４７を圧入し（図１３（ａ）、（ｂ））、バール部４５、４６に拡管部４８、４９を形成（図１３（ｃ））すれば両チューブ成形プレート３０同士をより強固に固定することができる。なお、この状態におけるチューブ２の端部を図１５に示してある。また、図１０および図１１に示すチューブ成形プレート５０（仕切りプレート）、チューブ成形プレート５２の固定も上記と同様に行われる。   Furthermore, if the tube expansion punch 47 is press-fitted (FIGS. 13A and 13B) and the tube expansion portions 48 and 49 are formed in the bar portions 45 and 46 (FIG. 13C), the tube forming plates 30 can be connected to each other. It can be fixed more firmly. In addition, the edge part of the tube 2 in this state is shown in FIG. The tube forming plate 50 (partition plate) and the tube forming plate 52 shown in FIGS. 10 and 11 are also fixed in the same manner as described above.

本実施態様のような積層型熱交換器およびその製造方法によるときは、予め孔が穿設されたチューブ成形プレート同士を孔合せ位置にて組み合わせた後、該孔に、たとえばパンチ等を圧入しバーリング加工を施せば、孔の周縁に両チューブ成形プレートの一部からなるバール部が同時に一体的に形成される。したがって、バール部を孔に挿入するような煩雑な作業を廃止できる。また、バール部および孔の位置を反対にした２種類のチューブ成形プレート（連通プレート）を準備する必要はなくなるので、チューブを形成するチューブ成形プレートの種類を減じ、しかもチューブ成形プレートを固定する際の組み付け作業性を大幅に向上することができる。   When the laminated heat exchanger and the manufacturing method thereof according to the present embodiment are used, after combining tube forming plates with holes formed in advance at a hole alignment position, for example, a punch or the like is press-fitted into the holes. If the burring process is performed, the bar part which consists of a part of both tube shaping | molding plates will be integrally formed at the periphery of the hole simultaneously. Therefore, the troublesome work of inserting the bar portion into the hole can be eliminated. In addition, since it is not necessary to prepare two types of tube forming plates (communication plates) with the positions of the bar part and the hole reversed, the number of types of tube forming plates forming the tube is reduced and the tube forming plate is fixed. Assembling workability can be greatly improved.

本発明に係る積層型熱交換器およびその製造方法は、一対のチューブ成形プレートを互いに接合して形成されるチューブと、アウターフィンとが交互に積層される積層型熱交換器において広く適用できる。また、このような積層型熱交換器は車両用空調装置に用いられるエバポレータとして好適なものである。   The laminated heat exchanger and the manufacturing method thereof according to the present invention can be widely applied to laminated heat exchangers in which a tube formed by joining a pair of tube forming plates to each other and outer fins are alternately laminated. Moreover, such a laminated heat exchanger is suitable as an evaporator used in a vehicle air conditioner.

本発明の一実施態様に係る積層型熱交換器の基本構成を示す正面図である。（従来例の説明にも利用）It is a front view which shows the basic composition of the laminated heat exchanger which concerns on one embodiment of this invention. (Used to explain conventional examples) 図１の積層型熱交換器のＩＩ−ＩＩ線に沿う矢視図である。It is an arrow line view which follows the II-II line | wire of the laminated heat exchanger of FIG. 従来のチューブ成形プレートの斜視図である。It is a perspective view of the conventional tube forming plate. 従来の積層型熱交換器の連通部を形成するチューブ成形プレートの正面図である。It is a front view of the tube forming plate which forms the communication part of the conventional laminated heat exchanger. 図４とは別の連通部を形成するチューブ成形プレートの正面図である。It is a front view of the tube formation plate which forms the communicating part different from FIG. 従来の積層型熱交換器の仕切りプレートとして機能するチューブ成形プレートの正面図である。It is a front view of the tube formation plate which functions as a partition plate of the conventional laminated heat exchanger. 従来の積層型熱交換器の各カップ部が独立したチューブ成形プレートの正面図である。It is a front view of the tube forming plate where each cup part of the conventional lamination type heat exchanger became independent. 従来の積層型熱交換器のチューブ成形プレート同士を固定する際の工程図である。It is a process figure at the time of fixing the tube forming plates of the conventional lamination type heat exchanger. 本発明の一実施態様に係る積層型熱交換器の連通部を形成するチューブ成形プレートの正面図である。It is a front view of the tube formation plate which forms the communication part of the laminated heat exchanger which concerns on one embodiment of this invention. 本発明の一実施態様に係る積層型熱交換器の仕切りプレートとして機能するするチューブ成形プレートの正面図である。It is a front view of the tube formation plate which functions as a partition plate of the laminated heat exchanger which concerns on one embodiment of this invention. 本発明の一実施態様に係る積層型熱交換器の各カップ部が独立したチューブ成形プレートの正面図である。It is a front view of the tube forming plate in which each cup part of the lamination type heat exchanger concerning one embodiment of the present invention became independent. 本発明の一実施態様に係る積層型熱交換器のチューブ成形プレート同士を固定する際の工程図である。It is a process figure at the time of fixing the tube forming plates of the laminated heat exchanger which concerns on one embodiment of this invention. 本発明の一実施態様に係る積層型熱交換器のチューブ成形プレート同士を固定した後、さらにバール部の先端に拡管部を形成する際の工程図である。It is a process figure at the time of forming a pipe expansion part in the tip of a bar part, after fixing tube forming plates of a layered heat exchanger concerning one embodiment of the present invention. 図１２（ａ）の状態におけるチューブの部分拡大断面図である。It is the partial expanded sectional view of the tube in the state of Fig.12 (a). 図１３（ｃ）の状態におけるチューブの部分拡大断面図である。It is a partial expanded sectional view of the tube in the state of Drawing 13 (c).

符号の説明Explanation of symbols

１ 積層型熱交換器
２ チューブ
３ アウターフィン
４ コア部
５、６ エンドプレート
７、８ タンク
９ 入口パイプ
１０ 出口パイプ
１１、２２、２３、２４、２５、３０、５０、５２ チューブ成形プレート
１２、１３、１４、１５、３１、３２、３３、３４ カップ部
１６、１７、１８、１９、３５、３６、３７、３８ 流通孔
２０、２１、３９、４０ 凸部
２７、４５、４６ バール部
２８、４１ 孔
２９、４４ パンチ
４３ ダイス
４７ 拡管用パンチ
４８、４９ 拡管部
５５ 連通路
５６ 孔合せ位置 DESCRIPTION OF SYMBOLS 1 Laminated heat exchanger 2 Tube 3 Outer fin 4 Core part 5, 6 End plate 7, 8 Tank 9 Inlet pipe 10 Outlet pipe 11, 22, 23, 24, 25, 30, 50, 52 Tube forming plate 12, 13 , 14, 15, 31, 32, 33, 34 Cup part 16, 17, 18, 19, 35, 36, 37, 38 Flow hole 20, 21, 39, 40 Convex part 27, 45, 46 Bar part 28, 41 Hole 29, 44 Punch 43 Dies 47 Tube expansion punch 48, 49 Tube expansion section 55 Communication path 56 Hole alignment position

Claims (6)

一対のチューブ成形プレートを互いに接合して形成されるチューブとアウターフィンとが交互に積層された積層型熱交換器において、前記一対のチューブ成形プレート同士が両者の孔合せ位置にて実質的に同時にバーリング加工されたバーリング部により固定されていることを特徴とする積層型熱交換器。   In a laminated heat exchanger in which tubes and outer fins formed by joining a pair of tube forming plates to each other are alternately laminated, the pair of tube forming plates are substantially simultaneously at the positions where they are aligned. A laminated heat exchanger characterized by being fixed by a burring portion subjected to burring processing. 前記バーリング部の先端に拡管部が設けられている、請求項１の積層型熱交換器。   The laminated heat exchanger according to claim 1, wherein a tube expansion portion is provided at a tip of the burring portion. 前記チューブの長手方向に延びる流体通路内にインナーフィンが設けられている、請求項１または２の積層型熱交換器。   The laminated heat exchanger according to claim 1 or 2, wherein an inner fin is provided in a fluid passage extending in a longitudinal direction of the tube. 前記インナーフィンが波形インナーフィンである、請求項３の積層型熱交換器。   The laminated heat exchanger according to claim 3, wherein the inner fin is a corrugated inner fin. 一対のチューブ成形プレートを互いに接合して形成されるチューブとアウターフィンとが交互に積層される積層型熱交換器を製造するに際し、各チューブ成形プレートにそれぞれ孔を穿設し、両チューブ成形プレートを組み合わせて前記孔同士を位置合せし、該位置合せ部にバーリング加工を施してチューブ成形プレート同士を固定することを特徴とする積層型熱交換器の製造方法。   When manufacturing a laminated heat exchanger in which tubes and outer fins, which are formed by joining a pair of tube forming plates to each other, are laminated, holes are made in each tube forming plate, and both tube forming plates are formed. A method of manufacturing a laminated heat exchanger, wherein the holes are aligned with each other and the tube forming plates are fixed to each other by performing burring on the alignment portion. 前記バーリング加工により形成されたバール部の先端をさらに拡管する、請求項５の積層型熱交換器の製造方法。   The manufacturing method of the laminated heat exchanger of Claim 5 which further expands the front-end | tip of the bar part formed by the said burring process.
JP2004183613A 2004-06-22 2004-06-22 Stacked heat exchanger and its manufacturing method Pending JP2006010102A (en)

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US11/150,139 US20050279485A1 (en) 2004-06-22 2005-06-13 Stacking-type, multi-flow, heat exchangers and methods for manufacturing such heat exchangers
EP05253669A EP1610080A3 (en) 2004-06-22 2005-06-14 Stacking-type, multi-flow, heat exchangers and methods for manufacturing such heat exhangers
CA002510431A CA2510431A1 (en) 2004-06-22 2005-06-21 Stacking-type, multi-flow, heat exchangers and methods for manufacturing such heat exchangers
CN200510079075.4A CN1712875A (en) 2004-06-22 2005-06-22 Stacking-type, multi-flow, heat exchangers and methods for manufacturing such heat exchangers

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EP1610080A2 (en) 2005-12-28

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