JP2006003051A - Heat exchanger - Google Patents

Heat exchanger Download PDF

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Publication number
JP2006003051A
JP2006003051A JP2004182878A JP2004182878A JP2006003051A JP 2006003051 A JP2006003051 A JP 2006003051A JP 2004182878 A JP2004182878 A JP 2004182878A JP 2004182878 A JP2004182878 A JP 2004182878A JP 2006003051 A JP2006003051 A JP 2006003051A
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tank
plate
heat exchanger
core plate
header tank
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JP2004182878A
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JP4341483B2 (en
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Takayuki Kanazawa
孝行 金沢
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Denso Corp
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Denso Corp
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Priority to JP2004182878A priority Critical patent/JP4341483B2/en
Priority to DE200510028404 priority patent/DE102005028404A1/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
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/026—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits
    • F28F9/0265—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits by using guiding means or impingement means inside the header box
    • 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
    • F28F9/0246—Arrangements for connecting header boxes with flow lines

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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)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a heat exchanger provided with a header tank for reducing a pressure loss of inflow fluid, reducing the number of parts, and reducing a brazing requiring part. <P>SOLUTION: The header tank 1 of the heat exchanger 10 is formed of two members of a tank plate 2 and core plate 3. An inflow/outflow tube pipe 7 of fluid is provided on one side surface of a short side direction of the header tank. Other side surface of the short side direction of the header tank opposite to the inflow/outflow tube pipe is formed in a circular curved surface. Attaching holes 2a, 3a for installing the heat exchanger on a vehicle or the like are provided integrally with the header tank. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、熱交換器に関するもので、特にエンジンの冷却水を冷却するラジエタに用いて有効である。   The present invention relates to a heat exchanger, and is particularly effective when used in a radiator for cooling engine coolant.

従来、熱交換器のチューブに流通する熱交換媒体を分配集合させるヘッダタンク構造は、例えば、特許文献１に記載されているように、チューブに結合する断面Ｖ字形状のコアプレートと、このコアプレートの内壁に結合する断面Ｖ字形状のタンクプレートと、コアプレートとタンクプレートとを組み合わせて形成された、断面略４角形の筒状のタンク空間の長手方向両端部を閉塞するサイドキャップの３つの部材から構成されていて、これら３つの部材がろう付けされることによって形成されている。   2. Description of the Related Art Conventionally, a header tank structure that distributes and collects a heat exchange medium flowing through a tube of a heat exchanger includes, for example, a core plate having a V-shaped cross section coupled to a tube, as described in Patent Document 1, and this core. A side cap 3 is formed by combining a tank plate having a V-shaped cross section coupled to the inner wall of the plate, a core plate and a tank plate, and closing both ends in the longitudinal direction of a cylindrical tank space having a substantially quadrangular cross section. It is composed of one member and is formed by brazing these three members.

特開平１０−１３２４９０号公報JP 10-132490 A

また、従来技術として、図３，４に示されるような熱交換器のヘッダタンク構造も知られている。このヘッダタンク構造１は、チューブ５に結合する断面Ｌ字形状のコアプレート３と、このコアプレート３と組み合わされて断面４角形の筒状のタンク空間１ａを形成する断面倒立Ｌ字形形状のタンクプレート２と、筒状のタンク空間１ａの長手方向両端部を閉鎖するサイドキャップ４とから構成され、これら３つの部材がろう付けされることによって形成されている。   As a conventional technique, a header tank structure of a heat exchanger as shown in FIGS. 3 and 4 is also known. The header tank structure 1 includes a core plate 3 having an L-shaped cross section that is coupled to a tube 5 and an inverted L-shaped tank that is combined with the core plate 3 to form a cylindrical tank space 1a having a quadrangular cross section. The plate 2 and the side cap 4 that closes both ends in the longitudinal direction of the cylindrical tank space 1a are formed by brazing these three members.

上記した従来のヘッダタンク構造は、いずれもコアプレート、タンクプレート及びサイドキャップの３つの部材から構成されているため、ろう付け部品点数が多くなり、ろう付け不良が発生し易いという問題があった。   Since the conventional header tank structure described above is composed of three members, a core plate, a tank plate, and a side cap, there is a problem that the number of brazing parts increases and brazing defects are likely to occur. .

また、これらのヘッダタンク構造には、図３，４に示すように熱交換媒体の流出入パイプ７が断面４角形の筒状のヘッダタンク１の一方の側面に直角に取り付けられている。そのため、流出入パイプ７からタンク空間１ａに流入する熱交換媒体は、タンク空間１ａ内の流出入パイプ７と対向する内壁面に衝突して跳ね返り流れが発生し、これによって、流体の圧力損失を増大させているという問題があった。   Further, in these header tank structures, as shown in FIGS. 3 and 4, a heat exchange medium inflow / outflow pipe 7 is attached to one side surface of a cylindrical header tank 1 having a quadrangular cross section at a right angle. Therefore, the heat exchange medium flowing into the tank space 1a from the inflow / outflow pipe 7 collides with the inner wall surface facing the outflow / inflow pipe 7 in the tank space 1a to generate a rebound flow, thereby reducing the pressure loss of the fluid. There was a problem of increasing.

更に上記した従来の熱交換器のヘッダタンク構造では、組み立てられた熱交換器を車両に搭載するために、図３に示すようにヘッダタンク１に取付ブラケット８を設ける必要があり、部品点数の増加を招いていた。   Furthermore, in the header tank structure of the conventional heat exchanger described above, in order to mount the assembled heat exchanger on the vehicle, it is necessary to provide a mounting bracket 8 on the header tank 1 as shown in FIG. An increase was incurred.

本発明は、上記問題に鑑みてなされたものであり、その目的は、流入する熱交換流体の圧力損失を低減することができると共に、サイドキャップ、取付ブラケット等の部品を無くすことができ、部品点数の削減及びろう付け必要部分の低減を図ることができるヘッダタンク構造を備えた熱交換器を提供する。   The present invention has been made in view of the above problems, and its object is to reduce pressure loss of the inflowing heat exchange fluid and to eliminate parts such as side caps and mounting brackets. Provided is a heat exchanger having a header tank structure that can reduce the number of points and the brazing required portion.

本発明は、前記課題を解決するための手段として、特許請求の範囲の各請求項に記載の熱交換器を提供する。
請求項１に記載の熱交換器は、ヘッダタンクが、タンクプレートとコアプレートの２つの部材から形成されていて、ヘッダタンクの短手方向の一方の側面に流体の出入管パイプが設けられており、この出入管パイプに対向するヘッダタンクの短手方向の他方の側面が、円弧状の曲面に形成されているものであり、これにより、タンクの部品点数を削減でき、ろう付け部分の低減を図れると共に、ヘッダタンクに流入する流体がタンクの壁面に当たって、跳ね返り流れが形成されるのを防止でき、流体の圧力損失の増大を防ぐことができる。 This invention provides the heat exchanger as described in each claim of a claim as a means for solving the said subject.
In the heat exchanger according to claim 1, the header tank is formed of two members, a tank plate and a core plate, and a fluid inlet / outlet pipe is provided on one side surface in the short direction of the header tank. The other side of the header tank in the short direction facing the inlet / outlet pipe is formed in an arcuate curved surface, which can reduce the number of parts in the tank and reduce brazed parts. In addition, it is possible to prevent the fluid flowing into the header tank from hitting the tank wall surface to form a rebounding flow, and to prevent an increase in fluid pressure loss.

請求項２の熱交換器は、タンクプレートが、その長手方向の両端部が、平坦部と、平坦部の一方の側部からタンク側に向けて垂直に立ち上がっている立上り部と、平坦部の他方の側部からチューブ側に向けて垂直に折曲した第１の折曲部とから形成されていて、その長手方向の中間部が、連続する立上り部を残して、円弧状に窪んだ曲面部に形成されており、かつコアプレートが、水平な底面部と、底面部の短手方向の一方の側部からタンク側に向けて垂直に折曲された側面部と、底面部の短手方向の他方の側部からチューブ側に向けて垂直に折曲された第２の折曲部とを有し、底面部にチューブが結合され、側面部に流体の出入管パイプが結合されていて、このタンクプレートとコアプレートとを組み合わせてろう付けすることにより、長手方向の両端部が閉鎖され、中間部に長円の中心を通って４分割した略扇形断面のタンク空間が形成され、出入管パイプがヘッダタンクの曲面部に対向するようにしたものである。これは、タンクプレートとコアプレートの構造を具体化したものであり、請求項１と同様の作用効果を奏するものである。   In the heat exchanger according to claim 2, the tank plate has both ends in the longitudinal direction of a flat portion, a rising portion that rises vertically from one side of the flat portion toward the tank, and a flat portion. A curved surface that is formed from a first bent portion that is bent vertically from the other side portion toward the tube side, and whose middle portion in the longitudinal direction is recessed in an arc shape, leaving a continuous rising portion. And the core plate has a horizontal bottom surface, a side surface bent vertically from one side of the bottom surface toward the tank side, and a short surface of the bottom surface. A second bent portion bent vertically from the other side portion of the direction toward the tube side, the tube is coupled to the bottom surface portion, and the fluid inlet / outlet pipe is coupled to the side surface portion. By combining this tank plate and core plate and brazing, Opposite end portions is closed, and through the center of the ellipse to the intermediate portion 4 the tank space divided substantially fan section is formed, and out tube pipe is obtained so as to face the curved portion of the header tank. This embodies the structure of the tank plate and the core plate, and has the same effect as that of the first aspect.

請求項３の熱交換器は、タンクプレートとコアプレートとを組み合わせたときに、両者が当接して重ね合わされる、タンクプレートの長手方向の端部近くの立上り部とコアプレートの長手方向の端部近くの側面部とに、それぞれ位置を一致させて取付孔を形成したものであり、これにより、熱交換器を車両等に搭載するための取付ブラケット等を新らたに熱交換器に設ける必要がなく、この取付孔を利用して熱交換器を車両等に据え付けることができる。
請求項４の熱交換器は、タンクプレート及びコアプレートに係合爪及び係合雄部又は係合雌部を設けたものであり、これにより、タンクプレートとコアプレートを組み合わせるときに、両者の位置合わせ及びろう付け前の仮固定を容易に行うことができる。
請求項５の熱交換器は、特に、ヘッダタンクはチューブの長手方向両端部が接続される底面部と、底面部の一端部からチューブ長手方向に延び、出入管パイプが接続される略平板状の側面部とを有するコアプレートと、コアプレートの底面部の他端からコアプレートの側面部端部まで延出し、出入管パイプが対向する部位が円弧状の曲面である曲面部を有するタンクプレートとを有することを特徴とする。これにより、タンクの部品点数を削減でき、ろう付け部分の低減を図れると共に、ヘッダタンクに流入する流体がタンクの壁面に当たって、跳ね返り流れが形成されるのを防止でき、流体の圧力損失の増大を防ぐことができる。また、出入管パイプが接続されるコアプレートの側面部は略平板形状を有しているので、出入管パイプの開口縁部がヘッダタンク頂部近傍となるように出入管パイプを配することができ、出入管パイプの径を大径化することができる。 When the tank plate and the core plate are combined, the heat exchanger according to claim 3 is abutted and overlapped with each other, and the rising portion near the longitudinal end of the tank plate and the longitudinal end of the core plate The mounting holes are formed in the heat exchanger in order to mount the heat exchanger on the vehicle, etc. There is no need, and the heat exchanger can be installed on a vehicle or the like by using this mounting hole.
The heat exchanger according to claim 4 is provided with an engaging claw and an engaging male part or an engaging female part on the tank plate and the core plate, so that when the tank plate and the core plate are combined, Alignment and temporary fixation before brazing can be easily performed.
In the heat exchanger according to claim 5, in particular, the header tank has a bottom surface portion to which both end portions in the longitudinal direction of the tube are connected, and a substantially flat plate shape that extends in the tube longitudinal direction from one end portion of the bottom surface portion and to which the inlet / outlet pipe is connected. And a tank plate having a curved surface portion extending from the other end of the bottom surface portion of the core plate to the end portion of the side surface portion of the core plate and facing the inlet / outlet pipe is an arcuate curved surface. It is characterized by having. As a result, the number of parts of the tank can be reduced, the brazed portion can be reduced, and the fluid flowing into the header tank can be prevented from colliding with the tank wall surface to form a rebounding flow, thereby increasing the pressure loss of the fluid. Can be prevented. Further, since the side surface portion of the core plate to which the inlet / outlet pipe is connected has a substantially flat plate shape, the inlet / outlet pipe can be arranged so that the opening edge of the inlet / outlet pipe is near the top of the header tank. The diameter of the inlet / outlet pipe can be increased.

以下、図面に基づいて本発明の実施の形態の熱交換器について説明する。図１は、本発明の実施の形態の熱交換器の部分斜視図であり、図２は、本発明のヘッダタンクの中間部での断面図である。熱交換器１０は、流体が流通する扁平状のチューブ５とコルゲート状フィン６とが交互に積層されているコア部と、これらのチューブ２がその長手方向の両端でそれぞれ接続されるヘッダタンク１と、コア部を保護するために、その両側にチューブ５と平行に設けられているサイドプレート９とより主に構成されている。この熱交換器１０では、チューブ５内を通る流体と、チューブ５外のフィン６を通る気体との間で熱交換が行われ、ヘッダタンク１は、複数本のチューブ５内を流通する流体を分配集合させている。ヘッダタンク１には、それぞれ開口部が形成され、この開口部に出入管パイプ７が接続されている。これらの開口部の一方が熱交換器１０への流体の流入側であり、他方が熱交換器１０からの流体の流出側である。   Hereinafter, a heat exchanger according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a partial perspective view of a heat exchanger according to an embodiment of the present invention, and FIG. 2 is a cross-sectional view of an intermediate portion of the header tank of the present invention. The heat exchanger 10 includes a core portion in which flat tubes 5 and corrugated fins 6 through which a fluid flows are alternately stacked, and a header tank 1 in which these tubes 2 are connected at both ends in the longitudinal direction. And in order to protect a core part, it is mainly comprised from the side plate 9 provided in parallel with the tube 5 on the both sides. In this heat exchanger 10, heat exchange is performed between the fluid that passes through the tube 5 and the gas that passes through the fins 6 outside the tube 5, and the header tank 1 receives the fluid that flows through the plurality of tubes 5. Distribution set. Each header tank 1 has an opening, and an inlet / outlet pipe 7 is connected to the opening. One of these openings is the fluid inflow side to the heat exchanger 10, and the other is the fluid outflow side from the heat exchanger 10.

次に本発明の特徴であるヘッダタンク１の構造について説明する。ヘッダタンク１は、タンクプレート２とコアプレート３の２つの板状部材を組み合わせることによって形成されている。
タンクプレート２は、その長手方向の両端部が、平坦部２１と、この平坦部２１の一方の側部からタンク側に向けて垂直に立ち上がっている立上り部２２と、平坦部２１の他方の側部からチューブ側に向けて垂直に折曲された第１の折曲部２３とからなり、その長手方向の中間部が、端部から連続して延在している立上り部２２を残して、円弧状に窪んだ曲面部２４に形成されている。このタンクプレート２は、一般には絞り加工によって形成される。立上り部２２は、タンクプレート２の長手方向に沿って端部から中間部に渡って連続して形成されているが、その立上げ幅は、両端部で高く、中間部では低くなっている。第１の折曲部２３も、タンクプレート２の長手方向に沿って端部から中間部に渡って連続して延在しているが、中間部では曲面部２４の一部となって同化している。曲面部２４は、例えば長円を中心を通って４分割したときの９０度の円弧形のような曲面に形成されている。この曲面部２４が、後述するタンク空間１ａの上面と他方の側面及び両端の閉鎖面を構成している。 Next, the structure of the header tank 1 that is a feature of the present invention will be described. The header tank 1 is formed by combining two plate-like members, a tank plate 2 and a core plate 3.
The tank plate 2 has both end portions in the longitudinal direction at a flat portion 21, a rising portion 22 rising vertically from one side portion of the flat portion 21 toward the tank side, and the other side of the flat portion 21. 1st bent part 23 bent vertically from the part toward the tube side, leaving the rising part 22 whose middle part in the longitudinal direction continuously extends from the end part, It is formed in a curved surface portion 24 that is recessed in an arc shape. The tank plate 2 is generally formed by drawing. The rising portion 22 is formed continuously from the end portion to the intermediate portion along the longitudinal direction of the tank plate 2, but the rising width is high at both end portions and low at the intermediate portion. The first bent portion 23 also extends continuously from the end portion to the intermediate portion along the longitudinal direction of the tank plate 2, but assimilate as a part of the curved surface portion 24 in the intermediate portion. ing. The curved surface portion 24 is formed in a curved surface such as a 90-degree arc shape when an ellipse is divided into four through the center. The curved surface portion 24 constitutes an upper surface of the tank space 1a described later, the other side surface, and closed surfaces of both ends.

コアプレート３は、水平な底面部３１と、この底面部３１の短手方向の一方の側部からタンク側に向けて垂直に折曲された略平板状の側面部３２と、底面部３１の短手方向の他方の側部からチューブ側に向けて延び、垂直に折曲された第２の折曲部３３とを有している。側面部３２の折曲高さは、第２の折曲部３３の高さよりかなり高く形成されている。コアプレート３の底面部３１には、チューブ５を挿通して固定するためのチューブ用取付孔（図示せず）が形成されている。また、コアプレート３の側面部３２には、流体を出入させるための出入管パイプ７が連結している。このコアプレート３の側面部３２と底面部３１が、タンク空間１ａの一方の側面と底面とを構成している。   The core plate 3 includes a horizontal bottom surface portion 31, a substantially flat side surface portion 32 that is bent vertically from one side portion of the bottom surface portion 31 toward the tank side, and a bottom surface portion 31. It has the 2nd bending part 33 extended toward the tube side from the other side part of a transversal direction, and bent vertically. The bent height of the side surface portion 32 is formed to be considerably higher than the height of the second bent portion 33. A tube mounting hole (not shown) for inserting and fixing the tube 5 is formed in the bottom surface portion 31 of the core plate 3. In addition, an inlet / outlet pipe 7 for allowing fluid to enter and exit is connected to the side surface portion 32 of the core plate 3. The side surface portion 32 and the bottom surface portion 31 of the core plate 3 constitute one side surface and the bottom surface of the tank space 1a.

タンクプレート２の立上り部２２の長手方向の端部近傍には、熱交換器１０を車両等に据え付けるための取付孔２ａが設けられている。同じく、コアプレート３の側面部３２の長手方向の端部近傍には、同じ大きさの取付孔３ａが形成されている。取付孔２ａと３ａは、タンクプレート２とコアプレート３とを立上り部２２と側面部３２とが当接して重ね合わせたときに連通するように、その位置が一致するように設けられている。これにより、組み立てられた熱交換器１０を車両等に取り付けるための取付ブラケットを新らたに設ける必要なしに、これらの取付孔２ａ，３ａを使用することで、熱交換器を車両等に取り付けることができる。   An attachment hole 2a for installing the heat exchanger 10 on a vehicle or the like is provided in the vicinity of the longitudinal end of the rising portion 22 of the tank plate 2. Similarly, an attachment hole 3 a having the same size is formed in the vicinity of the end in the longitudinal direction of the side surface portion 32 of the core plate 3. The mounting holes 2a and 3a are provided so that the positions thereof coincide with each other so that the tank plate 2 and the core plate 3 communicate with each other when the rising portion 22 and the side surface portion 32 come into contact with each other and overlap each other. Thereby, it is not necessary to newly provide a mounting bracket for mounting the assembled heat exchanger 10 to the vehicle or the like, and the heat exchanger is mounted to the vehicle or the like by using these mounting holes 2a and 3a. be able to.

更に、図１に示されるように、タンクプレート２の長手方向の両端部には、係合爪２５が設けられると共に、タンクプレート２の立上り部２２の端面（長手方向に沿う端面）２ｂには、係合雌部２６が設けられている。同様に、コアプレート３の長手方向の両端部には、複数の係合爪３５が設けられると共に、コアプレート３の側面部３２の端面（長手方向に沿う端面）３ｂには、係合雄部３６が設けられている。これらの係合爪２５，３５及び係合雌部２６と係合雄部３６とは、タンクプレート２及びコアプレート３に適宜設けることができる。これらの係合爪２５，３５及び係合雌雄部２６，３６は、タンクプレート２とコアプレート３とをろう付け前に仮組み付けする際の、両者の位置合わせ及び固定に利用される。   Further, as shown in FIG. 1, engaging claws 25 are provided at both ends in the longitudinal direction of the tank plate 2, and the end surface (end surface along the longitudinal direction) 2 b of the rising portion 22 of the tank plate 2 is provided on the end surface 22 b. An engaging female portion 26 is provided. Similarly, a plurality of engaging claws 35 are provided at both ends in the longitudinal direction of the core plate 3, and an engaging male portion is provided on the end surface (end surface along the longitudinal direction) 3 b of the side surface portion 32 of the core plate 3. 36 is provided. The engaging claws 25 and 35, the engaging female portion 26, and the engaging male portion 36 can be appropriately provided on the tank plate 2 and the core plate 3. The engaging claws 25 and 35 and the engaging male and female portions 26 and 36 are used for positioning and fixing the tank plate 2 and the core plate 3 when they are temporarily assembled before brazing.

タンクプレート２の両端部の平坦部２１とコアプレート３の底面部３１、タンクプレート２の立上り部２２とコアプレート３の側面部３２及びタンクプレート２の第１の折曲部２３と曲面部２４の一部とコアプレート３の第２の折曲部３３とをそれぞれ当接させて、タンクプレート２とコアプレート３とを組み合わせ、係合爪２５，３５及び係合雌部２６と係合雄部３６との雌雄係合によって、両者は位置決め、仮固定され、この状態でろう付け処理が行われる。
この場合、タンクプレート２の立上り部２２の端面２ｂとコアプレート３の側面部３２の端面３ｂ及びタンクプレート２の第１の折曲部２３の端面２ｂとコアプレート３の第２の折曲部３３の端面３ｂとは、図２に示すように同一平面を形成するように端面どうし２ｂ，３ｂを合わせてもよいし、或いは端面どうし２ｂ，３ｂで段差が形成されてもよい。 The flat part 21 of the both ends of the tank plate 2, the bottom part 31 of the core plate 3, the rising part 22 of the tank plate 2, the side part 32 of the core plate 3, the first bent part 23 and the curved part 24 of the tank plate 2. And the second bent portion 33 of the core plate 3 are brought into contact with each other, the tank plate 2 and the core plate 3 are combined, and the engaging claws 25 and 35 and the engaging female portion 26 are engaged with the engaging male. By male and female engagement with the portion 36, both are positioned and temporarily fixed, and brazing is performed in this state.
In this case, the end surface 2 b of the rising portion 22 of the tank plate 2, the end surface 3 b of the side surface portion 32 of the core plate 3, the end surface 2 b of the first bent portion 23 of the tank plate 2, and the second bent portion of the core plate 3. As shown in FIG. 2, the end surfaces 2b and 3b may be aligned with each other so as to form the same plane as shown in FIG. 2, or a step may be formed between the end surfaces 2b and 3b.

このようにして、ヘッダタンク１は、その長手方向の両端部がタンクプレート２の平坦部２１とコアプレート３の底面部３１とで閉鎖され、その中間部にタンクプレート２の曲面部２４とコアプレート３の底面部３１と側面部３２とで囲まれた、例えば、細長い瓜を中心を通って４分割した形状のようなタンク空間１ａが形成される。このとき、タンク空間１ａの一方の側面であるコアプレート３の側面部３２に流体の出入管パイプ７が設けられており、この出入管パイプ７に対向するタンク空間１ａの他方の側面が、曲面で形成されているため、外部から出入管パイプ７を通ってタンク空間１ａ内に入った流体は、他方の側面に衝突して跳ね返り流れを形成することなく、曲面に沿ってスムーズに流れの方向が変えられて、チューブ５内に流れ込むようになり、流体の圧力損失が低減できる。
また、出入管パイプ７が接続されるコアプレート３の側面部３２は略平板形状を有しているので、出入管パイプ７の開口縁部がヘッダタンク１の頂部近傍となるように出入管パイプ７を配することができ、出入管パイプ７の径を大径化することができる。 In this way, the header tank 1 is closed at both ends in the longitudinal direction by the flat portion 21 of the tank plate 2 and the bottom surface portion 31 of the core plate 3, and the curved surface portion 24 of the tank plate 2 and the core at the middle portion thereof. A tank space 1a is formed that is surrounded by the bottom surface portion 31 and the side surface portion 32 of the plate 3 and has, for example, a shape obtained by dividing an elongated ridge into four through the center. At this time, the fluid inlet / outlet pipe 7 is provided on the side surface portion 32 of the core plate 3 which is one side surface of the tank space 1a, and the other side surface of the tank space 1a facing the inlet / outlet pipe 7 is curved. Therefore, the fluid that has entered the tank space 1a through the inlet / outlet pipe 7 from the outside collides with the other side surface to form a rebounding flow, and smoothly flows along the curved surface. Is changed to flow into the tube 5 and the pressure loss of the fluid can be reduced.
Further, since the side surface portion 32 of the core plate 3 to which the inlet / outlet pipe 7 is connected has a substantially flat plate shape, the inlet / outlet pipe pipe so that the opening edge of the inlet / outlet pipe 7 is in the vicinity of the top of the header tank 1. 7 can be arranged, and the diameter of the pipe 7 can be increased.

以上説明したように、本発明の実施の形態の熱交換器では、出入管パイプから流れ込む流体が、曲面に向って流れ込むので、流体の跳ね返り流れを改善することができ、その圧力損失の増大を防止することができる。また、ヘッダタンクがタンクプレートとコアプレートのみで構成されており、サイドキャップを省略することができるので、部品点数削減によるろう付け必要部分を低減することができ、ろう付け不良の発生を減らすことができる。更にまた、ヘッダタンクの一部に取付孔を設けたので、熱交換器を車両等に据え付ける際に必要とする取付ブラケット無しに、取り付けることができる。   As described above, in the heat exchanger according to the embodiment of the present invention, the fluid flowing from the inlet / outlet pipe flows toward the curved surface, so that the rebound flow of the fluid can be improved and the pressure loss is increased. Can be prevented. In addition, since the header tank is composed of only the tank plate and the core plate and the side cap can be omitted, it is possible to reduce the number of parts required for brazing by reducing the number of parts and reduce the occurrence of brazing defects. Can do. Furthermore, since a mounting hole is provided in a part of the header tank, it can be mounted without a mounting bracket required when the heat exchanger is installed in a vehicle or the like.

本発明の実施の形態の熱交換器の部分斜視図である。It is a fragmentary perspective view of the heat exchanger of embodiment of this invention. 本発明の実施の形態の熱交換器におけるヘッダタンクのタンク部分の断面図である。It is sectional drawing of the tank part of the header tank in the heat exchanger of embodiment of this invention. 従来の熱交換器の部分斜視図である。It is a fragmentary perspective view of the conventional heat exchanger. 従来の熱交換器におけるヘッダタンクのタンク部分の断面図である。It is sectional drawing of the tank part of the header tank in the conventional heat exchanger.

符号の説明Explanation of symbols

１…ヘッダタンク
１ａ…タンク空間
２…タンクプレート
２ａ…取付孔
２１…平坦部
２２…立上り部
２３…第１の折曲部
２４…曲面部
３…コアプレート
３ａ…取付孔
３１…底面部
３２…側面部
３３…第２の折曲部
５…チューブ
６…フィン
７…出入管パイプ DESCRIPTION OF SYMBOLS 1 ... Header tank 1a ... Tank space 2 ... Tank plate 2a ... Mounting hole 21 ... Flat part 22 ... Rising part 23 ... 1st bending part 24 ... Curved part 3 ... Core plate 3a ... Mounting hole 31 ... Bottom part 32 ... Side surface portion 33 ... second bent portion 5 ... tube 6 ... fin 7 ... in / out pipe

Claims (5)

流体通路を成すチューブと放熱用のフィンとが交互に積層されているコア部と、前記チューブの長手方向両端部に配設され、流体を分配集合させるヘッダタンクとを備える熱交換器において、
前記ヘッダタンクが、タンクプレートとコアプレートの２つの部材から形成されていて、前記ヘッダタンクの短手方向の一方の側面に、流体を前記ヘッダタンクに出入する出入管パイプが設けられており、前記ヘッダタンクの前記出入管パイプに対向する短手方向の他方の側面が、円弧状の曲面に形成されていることを特徴とする熱交換器。 In a heat exchanger comprising a core part in which tubes forming a fluid passage and heat-dissipating fins are alternately stacked, and header tanks arranged at both ends in the longitudinal direction of the tube to distribute and collect fluids,
The header tank is formed of two members, a tank plate and a core plate, and an inlet / outlet pipe for flowing fluid into and out of the header tank is provided on one side surface in the short direction of the header tank, 2. The heat exchanger according to claim 1, wherein the other side surface of the header tank opposite to the inlet / outlet pipe is formed in an arcuate curved surface. 前記タンクプレートが、その長手方向の両端部が、平坦部と、前記平坦部の一方の側部からタンク側に向けて垂直に立ち上がっている立上り部と、前記平坦部の他方の側部からチューブ側に向けて垂直に折曲した第１の折曲部とから形成されていて、長手方向の中間部が、連続する前記立上り部を残して、円弧状に窪んだ曲面部に形成されており、かつ
前記コアプレートが、水平な底面部と、前記底面部の短手方向の一方の側部からタンク側に向けて垂直に折曲された側面部と、前記底面部の短手方向の他方の側部からチューブ側に向けて垂直に折曲された第２の折曲部とを有し、前記底面部に前記チューブが結合され、前記側面部に流体の出入管パイプが結合されていて、前記タンクプレートと前記コアプレートとを組み合わせてろう付けすることにより、長手方向の両端部が閉鎖され、中間部に長円の中心を通って４分割した略扇形断面のタンク空間が形成され、前記出入管パイプが前記ヘッダタンクの前記曲面部に対向していることを特徴とする請求項１に記載の熱交換器。 The tank plate has both ends in the longitudinal direction of a flat portion, a rising portion rising vertically from one side of the flat portion toward the tank side, and a tube from the other side of the flat portion. A first bent portion that is bent vertically toward the side, and a middle portion in the longitudinal direction is formed in a curved portion that is recessed in an arc shape, leaving the continuous rising portion. And the core plate has a horizontal bottom surface, a side surface bent vertically from one side of the bottom surface in the short direction toward the tank side, and the other of the bottom surface in the short direction. A second bent portion bent vertically from the side portion toward the tube side, the tube is coupled to the bottom surface portion, and a fluid inlet / outlet pipe is coupled to the side surface portion. Brazing the tank plate and the core plate in combination As a result, both end portions in the longitudinal direction are closed, and a tank space having a substantially fan-shaped cross section that is divided into four through the center of the ellipse is formed in the middle portion, and the access pipe is opposed to the curved surface portion of the header tank. The heat exchanger according to claim 1, wherein: 前記タンクプレートと前記コアプレートとを組み合わせたときに、両者が当接して重ね合わされる、前記タンクプレートの長手方向の端部近くの立上り部と前記コアプレートの長手方向の端部近くの側面部とに、それぞれ位置を一致させて取付孔が形成されていることを特徴とする請求項１又は２に記載の熱交換器。   When the tank plate and the core plate are combined, the both abut and overlap each other, and a rising portion near the longitudinal end of the tank plate and a side portion near the longitudinal end of the core plate The heat exchanger according to claim 1 or 2, wherein the mounting holes are formed so as to coincide with each other. 前記コアプレート及び前記タンクプレートには、係合爪及び係合雄部又は係合雌部が設けられていることを特徴とする請求項１，２又は３に記載の熱交換器。   4. The heat exchanger according to claim 1, wherein the core plate and the tank plate are provided with an engaging claw and an engaging male part or an engaging female part. 流体通路を成すチューブと放熱用のフィンとが交互に積層されているコア部と、前記チューブの長手方向両端部に配設され、流体を分配集合させるヘッダタンクと、前記ヘッダタンクに冷却水を流入または流出させる出入管パイプとを備える熱交換器において、
前記ヘッダタンクは、
前記チューブの長手方向両端部が接続される底面部と、この底面部の一端部からチューブ長手方向に延び、前記出入管パイプが接続される略平板状の側面部とを有するコアプレートと、
前記コアプレートの底面部の他端から前記コアプレートの側面部端部まで延出し、前記出入管パイプが対向する部位が円弧状の曲面である曲面部を有するタンクプレートとを有することを特徴とする熱交換器。 A core portion in which tubes forming a fluid passage and heat-dissipating fins are alternately stacked, a header tank disposed at both ends in the longitudinal direction of the tube, for distributing and collecting fluid, and cooling water being supplied to the header tank In a heat exchanger comprising an inlet / outlet pipe for inflow or outflow,
The header tank is
A core plate having a bottom surface portion to which both longitudinal ends of the tube are connected, and a substantially flat side surface portion extending from one end portion of the bottom surface portion in the tube longitudinal direction and connected to the inlet / outlet pipe;
A tank plate having a curved surface portion that extends from the other end of the bottom surface portion of the core plate to a side surface portion end portion of the core plate, and a portion facing the inlet / outlet pipe is an arcuate curved surface. Heat exchanger.
JP2004182878A 2004-06-21 2004-06-21 Heat exchanger Expired - Fee Related JP4341483B2 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013164199A (en) * 2012-02-10 2013-08-22 Denso Corp Heat exchanger, and method for manufacturing the same

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JPH0232421U (en) * 1988-08-26 1990-02-28
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JPH0571892A (en) * 1991-09-13 1993-03-23 Zexel Corp Heat exchanger
JPH10170187A (en) * 1996-12-03 1998-06-26 Calsonic Corp Tank for heat exchanger
JPH11148794A (en) * 1997-11-14 1999-06-02 Zexel:Kk Heat exchanger
JP2001280885A (en) * 2000-02-24 2001-10-10 Valeo Thermique Moteur Manifold equipped with integral type pipe for heat exchanger
JP2005249304A (en) * 2004-03-04 2005-09-15 Denso Corp Heat exchanger and its assembling method

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Publication number Priority date Publication date Assignee Title
JPS61149692U (en) * 1985-03-01 1986-09-16
JPS6396495A (en) * 1986-10-13 1988-04-27 Nippon Denso Co Ltd Heat exchanger
JPH0232421U (en) * 1988-08-26 1990-02-28
JPH04322896A (en) * 1991-04-23 1992-11-12 Calsonic Corp Brazing method for tank main body and seat plate of heat exchanger made of aluminum
JPH0571892A (en) * 1991-09-13 1993-03-23 Zexel Corp Heat exchanger
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