JP2007163004A - Heat exchanger - Google Patents

Heat exchanger Download PDF

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Publication number
JP2007163004A
JP2007163004A JP2005358559A JP2005358559A JP2007163004A JP 2007163004 A JP2007163004 A JP 2007163004A JP 2005358559 A JP2005358559 A JP 2005358559A JP 2005358559 A JP2005358559 A JP 2005358559A JP 2007163004 A JP2007163004 A JP 2007163004A
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Japan
Prior art keywords
heat exchanger
heat exchange
refrigerant
tube
header
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Withdrawn
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JP2005358559A
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Japanese (ja)
Inventor
Kazuhiro Idei
一博 出居
Eiki Hayashi
栄樹 林
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Marelli Corp
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Calsonic Kansei Corp
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Priority to JP2005358559A priority Critical patent/JP2007163004A/en
Priority to PCT/JP2006/324686 priority patent/WO2007069570A1/en
Publication of JP2007163004A publication Critical patent/JP2007163004A/en
Withdrawn legal-status Critical Current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
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/0008—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one medium being in heat conductive contact with the conduits for the other medium
    • F28D7/0025—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one medium being in heat conductive contact with the conduits for the other medium the conduits for one medium or the conduits for both media being flat tubes or arrays of tubes
    • F28D7/0033—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one medium being in heat conductive contact with the conduits for the other medium the conduits for one medium or the conduits for both media being flat tubes or arrays of tubes the conduits for one medium or the conduits for both media being bent
    • 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
    • F28D1/0408—Multi-circuit heat exchangers, e.g. integrating different heat exchange sections in the same unit or heat exchangers for more than two fluids
    • F28D1/0426—Multi-circuit heat exchangers, e.g. integrating different heat exchange sections in the same unit or heat exchangers for more than two fluids with units having particular arrangement relative to the large body of fluid, e.g. with interleaved units or with adjacent heat exchange units in common air flow or with units extending at an angle to each other or with units arranged around a central element
    • F28D1/0452—Combination of units extending one behind the other with units extending one beside or one above the other
    • 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
    • F28D1/05308—Assemblies of conduits connected side by side or with individual headers, e.g. section type radiators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • 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
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D2001/0253—Particular components
    • F28D2001/026—Cores
    • F28D2001/028—Cores with empty spaces or with additional elements integrated into the cores

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

Abstract

<P>PROBLEM TO BE SOLVED: To provide a heat exchanger used in a refrigeration cycle such as an air conditioner for a vehicle for improving a layout property in an engine compartment and improving workability. <P>SOLUTION: The heat exchanger 100 is provided with a heat exchanging part 10 including a plurality of flow passages 13, 14 arranged side by side for distributing a high temperature refrigerant and a low temperature refrigerant inside, and a header part 20 joined on both ends of the heat exchanging part 10 for distributing the high temperature refrigerant and low temperature refrigerant on the respective flow passages inside. Two or more heat exchanging parts 10 of an equal structure are superimposed along a longitudinal direction of the header part 20. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

この発明は、車両用空調装置等の冷凍サイクルに使用される熱交換器に関する。   The present invention relates to a heat exchanger used in a refrigeration cycle such as a vehicle air conditioner.

車両用空調装置の冷凍サイクルに使用される熱交換器では、設置スペースの節約だけでなく、熱交換効率の向上が求められている。これに対応する従来例として、内部に高温媒体の流れる複数の冷媒流路を列設したチューブと、同じく内部に低温媒体の流れる複数の冷媒流を列設したチューブとを重ね合わせ、各々の端部に冷媒の入口部、出口部を設けた冷凍サイクルが提案されている（特許文献１参照）。
特開２００２−９８４２４号公報 In a heat exchanger used for a refrigeration cycle of a vehicle air conditioner, not only saving of installation space but also improvement of heat exchange efficiency is required. As a conventional example corresponding to this, a tube in which a plurality of refrigerant flow paths in which a high-temperature medium flows is arranged and a tube in which a plurality of refrigerant flows in which a low-temperature medium flows are arranged are overlapped. A refrigeration cycle has been proposed in which an inlet portion and an outlet portion of a refrigerant are provided in the portion (see Patent Document 1).
JP 2002-98424 A

しかしながら、上述した特許文献１に示された従来例では、必要性能を得るために熱交換領域が大きくなると、チューブの幅や長さが長くなるために、エンジンルーム内でのレイアウト性（レイアウトの自由度）が低下する。また、設置スペースに合わせてＵ字形状に曲げることもできるが、チューブ長さが長い場合には２回以上の曲げが必要となるため、加工性が悪くなる。   However, in the conventional example shown in Patent Document 1 described above, when the heat exchange area becomes large in order to obtain the required performance, the width and length of the tube become long. (Degree of freedom) decreases. Moreover, although it can also be bent in a U shape according to an installation space, when a tube length is long, since bending more than twice is required, workability will worsen.

この発明の目的は、エンジンルーム内でのレイアウト性を向上させ、また加工性にも優れた熱交換器を提供することにある。   An object of the present invention is to provide a heat exchanger that improves layout in the engine room and is excellent in workability.

上記目的を達成するため、請求項１に係わる発明は、第１冷媒及び第２冷媒が各々流通する複数の流路が隣り合わせに形成された熱交換部と、当該熱交換部の両端に接合され、前記各流路に第１冷媒及び第２冷媒を流通させるヘッダ部とを備えた熱交換器であって、同一構成の前記熱交換部を、前記ヘッダ部の長手方向に沿って２つ以上積み重ねて接合したことを特徴とする。   In order to achieve the above object, the invention according to claim 1 is characterized in that a plurality of flow paths through which the first refrigerant and the second refrigerant each circulate are joined to each other and both ends of the heat exchange part. A heat exchanger having a header portion for circulating the first refrigerant and the second refrigerant in each flow path, wherein two or more heat exchange portions having the same configuration are arranged along a longitudinal direction of the header portion. It is characterized by being stacked and joined.

請求項２の発明は、請求項１において、前記ヘッダ部の側面に、前記熱交換部の端部と連通するスリットを設けたことを特徴とする。   According to a second aspect of the present invention, in the first aspect of the present invention, a slit that communicates with an end of the heat exchanging portion is provided on a side surface of the header portion.

請求項３の発明は、第１冷媒及び第２冷媒が各々流通する複数の流路が隣り合わせに形成された熱交換部と、当該熱交換部の両端に接合され、前記各流路に前記第１冷媒及び第２冷媒を流通させるヘッダ部とを備えた熱交換器ユニットを、前記ヘッダ部の長手方向に沿って２つ以上積み重ねて接合したことを特徴とする。   According to a third aspect of the present invention, a plurality of flow paths through which each of the first refrigerant and the second refrigerant circulate are joined to each other, and both ends of the heat exchange section are joined to each of the flow paths. Two or more heat exchanger units each including a header portion for circulating one refrigerant and a second refrigerant are stacked and joined along the longitudinal direction of the header portion.

請求項４の発明は、請求項１乃至３のいずれか一項において、前記熱交換部は、内部に第１冷媒の流通する複数の流路が形成された第１チューブと、内部に第２冷媒が流通する複数の流路が形成された第２チューブとを重ね合わせたチューブ接合体からなることを特徴とする。   According to a fourth aspect of the present invention, in the heat exchanger according to any one of the first to third aspects, the heat exchange section includes a first tube in which a plurality of flow paths through which the first refrigerant flows is formed, and a second inside. It consists of the tube joined body which piled up the 2nd tube in which the several flow path through which a refrigerant | coolant distribute | circulated was formed.

請求項５の発明は、請求項１乃至３のいずれか一項において、前記熱交換部は、内部に第１冷媒の流通する複数の流路と、第２冷媒が流通する複数の流路とを隣り合わせに形成した１つのチューブからなることを特徴とする。   A fifth aspect of the present invention provides the heat exchange unit according to any one of the first to third aspects, wherein the heat exchange unit includes a plurality of flow paths through which the first refrigerant flows and a plurality of flow paths through which the second refrigerant flows. It consists of one tube formed adjacent to each other.

請求項１の発明では、必要性能を得るために熱交換領域を大きくする場合でも、同一構成の熱交換部をヘッダ部の長手方向に沿って積み重ねて接合するだけでよいため、熱交換領域の大きさに合わせてチューブの幅や長さが長くする必要がない。しかも、熱交換領域を大きくした場合でも熱交換器本体の幅や高さは同一となり、冷媒の出入口の位置も一定とすることができるため、レイアウト性を向上させることができる。また、熱交換領域が大きくなっても、設置スペースに合わせてＵ字形状に曲げる必要がないため、加工性を向上させることができる。   In the invention of claim 1, even when the heat exchange area is enlarged in order to obtain the required performance, it is only necessary to stack and join the heat exchange parts having the same configuration along the longitudinal direction of the header part. There is no need to increase the width and length of the tube to match the size. Moreover, even when the heat exchange area is enlarged, the width and height of the heat exchanger main body are the same, and the position of the refrigerant inlet / outlet can be made constant, so that the layout can be improved. Moreover, even if the heat exchange area is increased, workability can be improved because it is not necessary to bend into a U-shape in accordance with the installation space.

請求項２の発明では、積み重ねる熱交換部の数に応じてヘッダ部の側面にチューブ挿入穴を形成する必要がないので、熱交換部の取り付けに要する時間を短縮することができる。   In the invention of claim 2, since it is not necessary to form a tube insertion hole in the side surface of the header portion according to the number of heat exchange portions to be stacked, the time required for attaching the heat exchange portion can be shortened.

請求項３の発明では、同一構成の熱交換器ユニットをヘッダ部の長手方向に沿って積み重ねて接合するようにしたので、すべての部品を統合化することができるようになり、コスト低減と生産性をより向上させることができる。   In the invention of claim 3, since the heat exchanger units having the same configuration are stacked and joined along the longitudinal direction of the header portion, all parts can be integrated, thereby reducing the cost and production. The sex can be further improved.

請求項４の発明では、２つのチューブを重ね合わせたチューブ接合体を熱交換部としたので、既存の扁平チューブを用いることができ、生産性を向上させることができる。   In the invention of claim 4, since the tube joined body in which two tubes are overlapped is used as the heat exchanging portion, an existing flat tube can be used, and productivity can be improved.

請求項５の発明では、それぞの冷媒が流通する複数の流路を隣り合わせに形成した１つのチューブを熱交換部としたので、２つのチューブを重ね合わせたものと比べて熱交換効率を向上させることができる。   In the invention of claim 5, since one tube formed by adjoining a plurality of flow paths through which each refrigerant circulates is used as a heat exchanging portion, the heat exchange efficiency is improved as compared with the case where two tubes are overlapped. Can be made.

［実施形態１］
図１は、実施形態１に係わる熱交換器１００の構成図であり、（ａ）は全体構成を示す斜視図、（ｂ）は平面図である。また図２（ａ）は図１（ｂ）のI−I線断面図、（ｂ）は他の構成例を示す断面図である。 [Embodiment 1]
FIG. 1 is a configuration diagram of a heat exchanger 100 according to the first embodiment, in which (a) is a perspective view showing the overall configuration, and (b) is a plan view. 2A is a cross-sectional view taken along the line I-I of FIG. 1B, and FIG. 2B is a cross-sectional view showing another configuration example.

本実施形態に係わる熱交換器１００は、図１（ａ）に示すように、高温冷媒と低温冷媒との間で熱交換を行う複数の熱交換部１０と、この熱交換部１０のそれぞれの両端と接合されたヘッダ部２０とを備えて構成されている。   As shown in FIG. 1A, the heat exchanger 100 according to this embodiment includes a plurality of heat exchange units 10 that perform heat exchange between a high-temperature refrigerant and a low-temperature refrigerant, and each of the heat exchange units 10. The header part 20 joined with both ends is comprised.

熱交換部１０は、図２（ａ）に示すように、内部に高温冷媒の流通する複数の流路１３が形成された第１チューブ１１と、同じく内部に低温冷媒の流通する複数の流路１４が形成された第２チューブ１２とを重ね合わせたチューブ接合体であり、高温冷媒の流通する複数の流路１３と低温冷媒の流通する複数の流路１４とが隣り合わせに形成された構成となっている。このように２つのチューブを重ね合わせてチューブ接合体とした場合は、既存の扁平チューブを用いることができるため、生産性を向上させることができる。   As shown in FIG. 2A, the heat exchanging unit 10 includes a first tube 11 in which a plurality of channels 13 through which a high-temperature refrigerant flows and a plurality of channels through which a low-temperature refrigerant flows. 14 is a tube assembly in which the second tube 12 formed is overlapped, and a plurality of flow paths 13 through which the high-temperature refrigerant flows and a plurality of flow paths 14 through which the low-temperature refrigerant flows are formed adjacent to each other. It has become. Thus, when two tubes are overlapped to form a tube joined body, an existing flat tube can be used, so that productivity can be improved.

また、図２（ｂ）に示すように、内部に高温冷媒の流通する複数の流路１３Ａと、低温冷媒が流通する複数の流路１４Ａとを隣り合わせに形成した１つのチューブ体として構成してもよい。このような一体形の熱交換部１０Ａとした場合は、２つのチューブを重ね合わせたものと比べて熱交換効率を向上させることができる。   Further, as shown in FIG. 2 (b), a plurality of flow paths 13A through which a high-temperature refrigerant flows and a plurality of flow paths 14A through which a low-temperature refrigerant flow are formed as a single tube body that is formed adjacent to each other. Also good. In the case of such an integrated heat exchange section 10A, the heat exchange efficiency can be improved as compared with the case where two tubes are overlapped.

ヘッダ部２０は、図１（ｂ）に示すように、高温冷媒用の入口ヘッダタンク２１と出口ヘッダタンク２２、及び低温冷媒用の入口ヘッダタンク２３と出口ヘッダタンク２４から構成されている。そして、高温冷媒用の入口ヘッダタンク２１は低温冷媒用の出口ヘッダタンク２４と接合され、低温冷媒用の入口ヘッダタンク２３は高温冷媒用の出口ヘッダタンク２２と接合されている。また、各ヘッダタンクの出入口部分には、図１（ａ）に示すように、外部配管と接続するための接続部材（符号省略）が取り付けられている。なお、入口／出口ヘッダタンクの組み合わせは本実施形態の例に限定されるものではなく、高温冷媒用の入口ヘッダタンク２１を低温冷媒用の入口ヘッダタンク２３と接合し、低温冷媒用の出口ヘッダタンク２４を高温冷媒用の出口ヘッダタンク２２と接合してもよい。   As shown in FIG. 1B, the header section 20 is composed of an inlet header tank 21 and an outlet header tank 22 for high-temperature refrigerant, and an inlet header tank 23 and an outlet header tank 24 for low-temperature refrigerant. The inlet header tank 21 for high-temperature refrigerant is joined to the outlet header tank 24 for low-temperature refrigerant, and the inlet header tank 23 for low-temperature refrigerant is joined to the outlet header tank 22 for high-temperature refrigerant. Further, as shown in FIG. 1A, connecting members (reference numerals omitted) for connecting to the external piping are attached to the entrance / exit portions of the header tanks. The combination of the inlet / outlet header tank is not limited to the example of this embodiment, and the inlet header tank 21 for high-temperature refrigerant is joined with the inlet header tank 23 for low-temperature refrigerant, and the outlet header for low-temperature refrigerant. The tank 24 may be joined to the outlet header tank 22 for high-temperature refrigerant.

また、各入口ヘッダタンク２１、２３、出口ヘッダタンク２２、２４の側面には、第１チューブ１１、第２チューブ１２が挿入されるチューブ挿入穴（図示せず）がそれぞれ設けられている。そして、第１チューブ１１、第２チューブ１２の端部を、このチューブ挿入穴に挿入して接合することにより、第１チューブ１１は入口ヘッダタンク２１、２３と、また第２チューブ１２は出口ヘッダタンク２２、２４とそれぞれ連通する。   Further, tube insertion holes (not shown) into which the first tube 11 and the second tube 12 are inserted are provided on the side surfaces of the inlet header tanks 21 and 23 and the outlet header tanks 22 and 24, respectively. Then, by inserting and joining the end portions of the first tube 11 and the second tube 12 into the tube insertion hole, the first tube 11 is connected to the inlet header tanks 21 and 23, and the second tube 12 is connected to the outlet header. The tanks 22 and 24 communicate with each other.

図３（ａ）〜（ｃ）は、実施形態１に係わる熱交換器１００の構成例を示す正面図である。図３（ａ）は、熱交換部１０を１つ備えた１組品を示している。本実施形態の熱交換器１００はこの１組品を基本形とし、同一構成となる熱交換部１０をヘッダ部２０の長手方向に沿って積み重ねて接合することにより、熱交換領域の必要性能を得るようにしている。ここで、図３（ｂ）は熱交換部１０を２つ備えた２組品を示し、図３（ｃ）は熱交換部１０を３つ備えた３組品を示している。   3A to 3C are front views illustrating a configuration example of the heat exchanger 100 according to the first embodiment. FIG. 3A shows one set including one heat exchanging unit 10. The heat exchanger 100 according to the present embodiment has this one set as a basic form, and obtains the required performance of the heat exchange region by stacking and joining the heat exchange parts 10 having the same configuration along the longitudinal direction of the header part 20. I am doing so. Here, FIG. 3B shows two sets including two heat exchanging units 10, and FIG. 3C shows three sets including three heat exchanging units 10.

熱交換部１０を積み重ねて接合するには、接合する熱交換部１０の数に応じてヘッダ部２０の側面にチューブ挿入穴を形成することで対応することができる。このようにして熱交換部１０を積み重ねた後、接合部をロウ付けまたは拡散接合することにより熱交換器１００を完成することができる。   Stacking and joining the heat exchange units 10 can be performed by forming tube insertion holes on the side surfaces of the header unit 20 according to the number of heat exchange units 10 to be joined. After stacking the heat exchange units 10 in this manner, the heat exchanger 100 can be completed by brazing or diffusion bonding the junctions.

なお図３では、１組品から３組品まで構成した例について示したが、ヘッダ部２０の長さを長くすることにより、さらに段数を増やすことができる。また、各入口ヘッダタンク、出口ヘッダタンクの所定位置にデバイドを挿入して、内部を流通する冷媒をデバイドの位置でターンさせるように構成してもよい。   Although FIG. 3 shows an example in which one to three sets are configured, the number of stages can be further increased by increasing the length of the header section 20. Further, a divide may be inserted into a predetermined position of each inlet header tank and outlet header tank so that the refrigerant circulating inside is turned at the position of the divide.

本実施形態に係わる熱交換器１００によれば、必要性能に応じて熱交換領域を大きくする場合は、同一構成の熱交換部１０をヘッダ部の長手方向に沿って積み重ねて接合するだけなので、熱交換領域の大きさに合わせてチューブの幅や長さを長くする必要がない。しかも、熱交換領域を大きくした場合でも熱交換器本体の幅や高さは同一となり、冷媒の出入口の位置も一定とすることができるため、レイアウト性を向上させることができる。また、熱交換領域が大きくなっても、設置スペースに合わせてＵ字形状に曲げる必要がないため、加工性を向上させることができる。とくに、熱交換器本体を縦置きレイアウト（図１に示すレイアウト形状）にした場合は、冷媒に含まれるコンプレッサ用オイルの溜まりがなく排出が容易となるため、オイルの戻り性を向上させることができる。   According to the heat exchanger 100 according to the present embodiment, when the heat exchange area is increased according to the required performance, the heat exchange parts 10 having the same configuration are simply stacked and joined along the longitudinal direction of the header part. There is no need to increase the width or length of the tube in accordance with the size of the heat exchange region. Moreover, even when the heat exchange area is enlarged, the width and height of the heat exchanger main body are the same, and the position of the refrigerant inlet / outlet can be made constant, so that the layout can be improved. Moreover, even if the heat exchange area is increased, workability can be improved because it is not necessary to bend into a U-shape in accordance with the installation space. In particular, when the heat exchanger main body is set in a vertical layout (layout shape shown in FIG. 1), the oil for the compressor contained in the refrigerant does not accumulate and can be easily discharged, so that the oil returnability can be improved. it can.

また、本実施形態の構成によれば、熱交換部１０の組数を変えることにより、容易に必要性能を変えることができる。したがって、熱交換領域の大きさに応じて異なる大きさの熱交換部を用意する必要がなく、また部品を統合化することができるため、コスト低減と生産性の向上を図ることができる。さらに、熱交換領域の大きさが変わっても冷媒の入口、出口の位置は一定となるため、外部配管の取り付け寸法を変える必要がなく、組み付け性を向上させることができる。   Moreover, according to the structure of this embodiment, a required performance can be easily changed by changing the number of sets of the heat exchange parts 10. Therefore, it is not necessary to prepare a heat exchanging part having a different size depending on the size of the heat exchanging area, and parts can be integrated, so that cost reduction and productivity improvement can be achieved. Furthermore, since the positions of the refrigerant inlet and outlet are constant even if the size of the heat exchange region changes, there is no need to change the mounting dimensions of the external piping, and the assemblability can be improved.

また、熱交換領域が大きくなっても、チューブの長さを抑えることができるため、チューブの変形や歪みを少なくすることができる。さらに、チューブ合わせが容易になり密着性を向上させることができるため、ロウ付け性を向上させることができる。   Moreover, since the length of the tube can be suppressed even when the heat exchange region becomes large, deformation and distortion of the tube can be reduced. Furthermore, since tube alignment becomes easy and adhesiveness can be improved, brazing property can be improved.

［実施形態２］
図４（ａ）〜（ｃ）は、実施形態２に係わる熱交換器２００の構成例を示す正面図である。図４では、実施形態１の熱交換器１００と同等部分を同一符号で示している。 [Embodiment 2]
4A to 4C are front views illustrating a configuration example of the heat exchanger 200 according to the second embodiment. In FIG. 4, the same part as the heat exchanger 100 of Embodiment 1 is shown with the same code | symbol.

本実施形態の熱交換器２００は、図４（ａ）に示すように、熱交換部１０の両端に接合されるヘッダ部２０の側面に、あらかじめ熱交換部１０の端部と連通する長穴形状のスリット２５を設けている。これ以外の構成は実施形態１と同じであるため、共通する部分の説明を省略する（平面形状も実施形態１と同じ）。   As shown in FIG. 4A, the heat exchanger 200 of the present embodiment has a long hole that communicates with the end of the heat exchange unit 10 in advance on the side surfaces of the header unit 20 joined to both ends of the heat exchange unit 10. A slit 25 having a shape is provided. Since the configuration other than this is the same as that of the first embodiment, description of common parts is omitted (the planar shape is the same as that of the first embodiment).

ここで、スリット２５は、ヘッダ部２０を構成する各ヘッダタンク（２１〜２４）の長手方向に沿って形成されている。図４（ａ）に示す１組品や図４（ｂ）に示す２組品の場合では、熱交換部１０が接合されていない部分にスリット２５が残るため、これを塞ぐための封止部材（図示せず）を取り付けて冷媒の漏れを防止する。   Here, the slit 25 is formed along the longitudinal direction of each header tank (21-24) which comprises the header part 20. As shown in FIG. In the case of the one set shown in FIG. 4A and the two sets shown in FIG. 4B, the slit 25 remains in a portion where the heat exchange unit 10 is not joined, and therefore a sealing member for closing the slit 25 (Not shown) is attached to prevent refrigerant leakage.

本実施形態に示す熱交換器２００おいても、上記実施形態１と同様の効果を得ることができる。とくに本実施形態の構成においては、ヘッダ部２０の側面に熱交換部１０の端部と連通するスリット２５を設けているため、積み重ねる熱交換部１０の数に応じてヘッダ部２０の側面にチューブ挿入穴を形成する必要がなく、熱交換部１０の取り付けに要する時間を短縮することができる。   Also in the heat exchanger 200 shown in this embodiment, the same effect as the said Embodiment 1 can be acquired. In particular, in the configuration of the present embodiment, since the slit 25 communicating with the end of the heat exchange unit 10 is provided on the side surface of the header unit 20, a tube is formed on the side surface of the header unit 20 according to the number of heat exchange units 10 to be stacked. There is no need to form an insertion hole, and the time required to attach the heat exchange unit 10 can be shortened.

［実施形態３］
図５は、実施形態３に係わる熱交換器３００の構成例を示す正面図である。図５では、実施形態１の熱交換器１００と同等部分を同一符号で示している。 [Embodiment 3]
FIG. 5 is a front view illustrating a configuration example of a heat exchanger 300 according to the third embodiment. In FIG. 5, the same part as the heat exchanger 100 of Embodiment 1 is shown with the same code | symbol.

本実施形態では、図５（ａ）に示すように、熱交換部１０とヘッダ部２０とを備えた１組の熱交換器ユニット３０を基本形とし、図５（ｂ）や図５（ｃ）に示すように、同一構成となる熱交換器ユニット３０をヘッダ部２０の長手方向に沿って積み重ねて接合することにより、１つの熱交換器３００を構成するようにしたものである。これ以外の構成は実施形態１と同じであるため、共通する部分の説明を省略する（平面形状も実施形態１と同じ）。   In this embodiment, as shown to Fig.5 (a), one set of heat exchanger units 30 provided with the heat exchange part 10 and the header part 20 are made into a basic form, FIG.5 (b) and FIG.5 (c). As shown in FIG. 2, one heat exchanger 300 is configured by stacking and joining the heat exchanger units 30 having the same configuration along the longitudinal direction of the header portion 20. Since the configuration other than this is the same as that of the first embodiment, description of common parts is omitted (the planar shape is the same as that of the first embodiment).

ここで、各ヘッダ部２０の一方の端部（冷媒入口側）には、積み重ねられる他のヘッダ部２０と連結するための接続部品２６が取り付けられ、他方の端部（冷媒出口側）には、この接続部品２６と嵌合する開口部２７が形成されている。そして、熱交換器ユニット３０を積み重ねた後、ヘッダ部２０の端部には外部配管と接続するための接続部材（図示を省略）が取り付けられる。   Here, a connection part 26 for connecting to the other header part 20 to be stacked is attached to one end part (refrigerant inlet side) of each header part 20, and the other end part (refrigerant outlet side) is attached. An opening 27 that fits with the connection component 26 is formed. Then, after the heat exchanger units 30 are stacked, a connection member (not shown) for connecting to the external pipe is attached to the end of the header portion 20.

また、本実施形態において、複数の熱交換器ユニット３０を積み重ねる際に、あらかじめ接続部品２６または開口部２７にデバイドを装着しておくことにより、内部を流通する冷媒をデバイドの位置でターンさせることができる。   Further, in the present embodiment, when stacking a plurality of heat exchanger units 30, by attaching a divide to the connection component 26 or the opening 27 in advance, the refrigerant circulating inside is turned at the divide position. Can do.

本実施形態に示す熱交換器３００においても、上記実施形態１と同様の効果を得ることができる。とくに本実施形態の構成においては、同一構成の熱交換器ユニット３０をヘッダ部２０の長手方向に沿って積み重ねて接合するようにしたので、すべての部品を統合化することができ、コスト低減と生産性をより向上させることができる。   Also in the heat exchanger 300 shown in this embodiment, the same effect as the said Embodiment 1 can be acquired. In particular, in the configuration of the present embodiment, the heat exchanger units 30 having the same configuration are stacked and joined along the longitudinal direction of the header portion 20, so that all the parts can be integrated and the cost can be reduced. Productivity can be further improved.

なお、上記実施形態１〜３では、熱交換部１０を３段に積み重ねた例について説明したが、積み重ねる段数はこれに限定されるものではなく、さらに多段にしてもよい。   In the first to third embodiments, an example in which the heat exchanging units 10 are stacked in three stages has been described. However, the number of stacked stages is not limited to this, and may be further increased.

実施形態１に係わる熱交換器の構成図。（ａ）は全体構成を示す斜視図。（ｂ）は平面図。1 is a configuration diagram of a heat exchanger according to Embodiment 1. FIG. (A) is a perspective view which shows the whole structure. (B) is a plan view. （ａ）は図１（ｂ）のI−I線断面図。（ｂ）は他の構成例を示す断面図。(A) is the II sectional view taken on the line of FIG.1 (b). (B) is sectional drawing which shows the other structural example. （ａ）〜（ｃ）は実施形態１に係わる熱交換器の構成例を示す正面図。(A)-(c) is a front view which shows the structural example of the heat exchanger concerning Embodiment 1. FIG. （ａ）〜（ｃ）は実施形態２に係わる熱交換器の構成例を示す正面図。(A)-(c) is a front view which shows the structural example of the heat exchanger concerning Embodiment 2. FIG. （ａ）〜（ｃ）は実施形態３に係わる熱交換器の構成例を示す正面図。(A)-(c) is a front view which shows the structural example of the heat exchanger concerning Embodiment 3. FIG.

符号の説明Explanation of symbols

１０、１０Ａ…熱交換部
１１…第１チューブ
１２…第２チューブ
１３、１３Ａ、１４、１４Ａ…流路
２０…ヘッダ部
２１…高温冷媒用の入口ヘッダタンク
２２…高温冷媒用の出口ヘッダタンク
２３…低温冷媒用の入口ヘッダタンク
２４…低温冷媒用の出口ヘッダタンク
２５…スリット
２６…接続部品
２７…開口部
３０…熱交換器ユニット
１００、２００、３００…熱交換器
DESCRIPTION OF SYMBOLS 10, 10A ... Heat exchange part 11 ... 1st tube 12 ... 2nd tube 13, 13A, 14, 14A ... Flow path 20 ... Header part 21 ... Inlet header tank 22 for high temperature refrigerants 22 ... Outlet header tank 23 for high temperature refrigerants ... Inlet header tank for low-temperature refrigerant 24 ... Outlet header tank for low-temperature refrigerant 25 ... Slit 26 ... Connection part 27 ... Opening part 30 ... Heat exchanger unit 100, 200, 300 ... Heat exchanger

Claims (1)

第１冷媒及び第２冷媒が各々流通する複数の流路が隣り合わせに形成された熱交換部（１０）と、当該熱交換部の両端に接合され、前記各流路に第１冷媒及び第２冷媒を流通させるヘッダ部（２０）とを備えた熱交換器であって、
同一構成の前記熱交換部（１０）を、前記ヘッダ部（２０）の長手方向に沿って２つ以上積み重ねて接合したことを特徴とする熱交換器。
A plurality of flow paths through which the first refrigerant and the second refrigerant circulate are joined to both ends of the heat exchange section and the heat exchange sections, and the first refrigerant and the second refrigerant are connected to the flow paths. A heat exchanger including a header portion (20) for circulating the refrigerant,
Two or more heat exchange parts (10) having the same configuration are stacked and joined along the longitudinal direction of the header part (20).
JP2005358559A 2005-12-13 2005-12-13 Heat exchanger Withdrawn JP2007163004A (en)

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