JP5185655B2 - Tube connection structure of heat exchanger - Google Patents

Tube connection structure of heat exchanger Download PDF

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JP5185655B2
JP5185655B2 JP2008046467A JP2008046467A JP5185655B2 JP 5185655 B2 JP5185655 B2 JP 5185655B2 JP 2008046467 A JP2008046467 A JP 2008046467A JP 2008046467 A JP2008046467 A JP 2008046467A JP 5185655 B2 JP5185655 B2 JP 5185655B2
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tube
flat tube
opening
heat exchanger
parallel
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JP2009204217A (en
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哲生 山崎
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T.RAD CO., L T D.
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本発明は、インタークーラのチューブとヘッダプレートとのろう付け部のごとく、繰り返し熱応力が生じる部分に亀裂が発生するのを防止する補強構造に関する。   The present invention relates to a reinforcing structure that prevents a crack from occurring in a portion where repeated thermal stress occurs, such as a brazed portion between a tube and a header plate of an intercooler.

インタークーラ等の自動車用熱交換器として、ヘッダプレートのチューブ挿通孔に偏平チューブを挿通し、その挿通部を一体にろう付け固定すると共に、ヘッダプレートをヘッダ本体の開口に嵌着固定し、チューブの外面間にコルゲート型のフィンを配置したものが量産されている。
このような熱交換器において、チューブとヘッダプレートとのろう付け部に生じる繰り返し熱応力のため、ろう付け部に亀裂が生じ、漏れが発生することがある。 As an automotive heat exchanger such as an intercooler, a flat tube is inserted into the tube insertion hole of the header plate, and the insertion portion is brazed and fixed integrally, and the header plate is fitted and fixed to the opening of the header body. Mass production of corrugated fins arranged between the outer surfaces of these.
In such a heat exchanger, cracks may occur in the brazed portion due to repeated thermal stress generated in the brazed portion between the tube and the header plate, and leakage may occur.

このような亀裂を防止するチューブ接続部の補強構造として下記特許文献１のものが提案されている。
この構造は、一例としてＵ字状の棒材または板材からなる補強部材をチューブの開口に嵌着し、その補強部材と共にチューブ端とヘッダプレートのチューブ挿通孔との間を一体にろう付け固定したものである。 The thing of the following patent document 1 is proposed as a reinforcement structure of the tube connection part which prevents such a crack.
In this structure, as an example, a reinforcing member made of a U-shaped bar or plate is fitted into the opening of the tube, and the tube end and the tube insertion hole of the header plate are integrally brazed and fixed together with the reinforcing member. Is.

特開昭５８−１９４３８２号公報JP 58-194382 A

従来のチューブ接続構造の補強材は、各偏平チューブの開口ごとに補強材を挿入するため、部品点数が多く且つ、組立てが面倒である欠点があった。それと共に、ろう付け中に補強部材がチューブの開口から外れてしまう欠点があった。すなわち、ろう付けのため炉内搬送等に伴う振動により、補強材がチューブの開口から外れやすい欠点があった。
そこで本発明は、部品点数が少なく組立て容易で且つ、ろう付け時の振動等によって外れ難いチューブの接続構造を提供することを課題とする。 Since the reinforcing material of the conventional tube connection structure inserts the reinforcing material for each opening of each flat tube, there are disadvantages that the number of parts is large and the assembly is troublesome. At the same time, there is a drawback that the reinforcing member is detached from the opening of the tube during brazing. That is, there has been a drawback that the reinforcing material is likely to come off from the opening of the tube due to vibration accompanying the conveyance in the furnace for brazing.
Accordingly, an object of the present invention is to provide a tube connection structure that has a small number of parts, is easy to assemble, and is difficult to come off due to vibration during brazing.

請求項１に記載の本発明は、多数の偏平なチューブ挿通孔(1)が定間隔に並列して穿設されたヘッダプレート(2)と、各チューブ挿通孔(1)に端部が挿通されてろう付け固定された多数の偏平チューブ(3)と、を具備する熱交換器のチューブ接続構造において、
両端部の外側に複数のＵ字状の弾性爪部(4)が、前記偏平チューブ(3)の並列ピッチで並列され、その両端部間が一以上の架橋部(5)で一体に連結された補強プレート(6)を有し、
その弾性爪部(4)は、その各Ｕ字状の一対の対向面が、偏平チューブの開口の長軸方向に直交し且つ、自由状態で、その一対の対向面のなす角度θが鋭角に形成されると共に、前記架橋部(5)の両側に位置する一対の弾性爪部(4)の両外側面間の距離が偏平チューブ(3)の開口の長軸長さより大に形成され、
その補強プレート(6)の全ての弾性爪部(4)が、そのＵ字の底側から各偏平チューブ(3)の開口に同時に圧入され、その圧入に伴いそれぞれ弾性変形して、その弾性爪部(4)の外側面が偏平チューブ(3)の開口の長軸側の両端内面に平行に接した状態でその接触面が一体にろう付け固定されたことを特徴とする熱交換器のチューブ接続構造である。 The present invention according to claim 1 includes a header plate (2) in which a number of flat tube insertion holes (1) are formed in parallel at regular intervals, and an end portion is inserted into each tube insertion hole (1). A plurality of flat tubes (3) fixed by brazing, and a tube connection structure of a heat exchanger comprising:
A plurality of U-shaped elastic claws (4) are arranged in parallel at the parallel pitch of the flat tube (3) on the outside of both ends, and the ends are integrally connected by one or more bridging portions (5). A reinforcing plate (6)
The elastic claw portion (4) has a pair of U-shaped opposing surfaces orthogonal to the major axis direction of the opening of the flat tube, and the angle θ formed by the pair of opposing surfaces is an acute angle in a free state. And the distance between both outer surfaces of the pair of elastic claws (4) located on both sides of the bridging portion (5) is formed to be greater than the major axis length of the opening of the flat tube (3),
All the elastic claws (4) of the reinforcing plate (6) are simultaneously press-fitted into the opening of each flat tube (3) from the bottom side of the U-shaped, and elastically deformed with the press-fitting, respectively. A heat exchanger tube characterized in that the contact surface is integrally brazed and fixed in a state where the outer surface of the section (4) is in parallel with the inner surfaces of both ends on the long axis side of the opening of the flat tube (3) Connection structure.

請求項２に記載の本発明は、請求項１において、
前記架橋部(5)が前記チューブ(3)の並列方向に隣り合う前記弾性爪部(4)の間に配置された熱交換器のチューブ接続構造である。 The present invention according to claim 2 is the method according to claim 1,
It is a tube connection structure of a heat exchanger in which the bridging portion (5) is disposed between the elastic claws (4) adjacent to each other in the parallel direction of the tube (3).

本発明のチューブ接続構造は、補強プレート６の弾性爪部４が偏平チューブ３の開口に圧入されて、弾性爪部４の外側面が偏平チューブ３の開口の長軸側の端部内面に接触して一体にろう付け固定されたものであるから、部品点数が少なく組立て容易なチューブ接続部の補強構造を提供できる。すなわち、各弾性爪部４の弾性を利用し、各偏平チューブ３の開口に同時に補強プレート６の各弾性爪部４を嵌着して、その各弾性爪部４の外周を偏平チューブ３の内面に圧着した状態で嵌着部をろう付けし、その嵌着部におけるチューブ接続部の板厚を増大させ、偏平チューブ３とヘッダプレート２のチューブ挿通孔１との間に生じる繰り返し熱応力に対し、最も亀裂が生じ易い偏平チューブ３の長軸側両端を補強し、亀裂を防止して熱交換器の信頼性を向上できる。
また、各弾性爪部４は偏平チューブ３の開口に圧入されて弾性的に接触するため、ろう付け中に補強プレート６が偏平チューブ３の開口から外れることを防止し、ろう付けの信頼性を向上し得る。 In the tube connection structure of the present invention, the elastic claw portion 4 of the reinforcing plate 6 is press-fitted into the opening of the flat tube 3, and the outer surface of the elastic claw portion 4 contacts the inner surface of the end portion of the flat tube 3 on the long axis side. Thus, since it is brazed and fixed integrally, it is possible to provide a reinforcing structure of the tube connecting portion that has a small number of parts and can be easily assembled. That is, using the elasticity of each elastic claw portion 4 , each elastic claw portion 4 of the reinforcing plate 6 is simultaneously fitted into the opening of each flat tube 3, and the outer periphery of each elastic claw portion 4 is connected to the inner surface of the flat tube 3. Against the repeated thermal stress generated between the flat tube 3 and the tube insertion hole 1 of the header plate 2. It is possible to reinforce both ends of the long axis side of the flat tube 3 that is most likely to crack, thereby preventing cracks and improving the reliability of the heat exchanger.
Further, since each elastic claw portion 4 is press-fitted into the opening of the flat tube 3 and elastically contacts, the reinforcing plate 6 is prevented from coming off from the opening of the flat tube 3 during brazing, and the brazing reliability is improved. It can improve.

上記構成において、架橋部５を偏平チューブ３の並列方向に隣り合う弾性爪部４間に配置した場合には、結果として偏平チューブ３の開口側に補強プレート６のスリット11が対向し、スリット11から偏平チューブ３の開口に熱交換媒体が円滑に流通し得る。   In the above configuration, when the bridging portion 5 is disposed between the elastic claws 4 adjacent to each other in the parallel direction of the flat tube 3, the slit 11 of the reinforcing plate 6 faces the opening side of the flat tube 3 as a result. Therefore, the heat exchange medium can smoothly flow through the opening of the flat tube 3.

次に、図面に基づいて本発明の実施の形態につき説明する。
図１は本発明の熱交換器のチューブ接続構造の要部縦断面図であって、偏平チューブ３の開口の長軸上の断面である。また、図２はその要部分解斜視図であり、図３は補強プレート６の自由状態（Ａ）と、それを偏平チューブ３の開口に嵌着した状態（Ｂ）を示す。
この例の熱交換器は、図１，図２に示す如く、多数の偏平チューブ３が並列されたコルゲートフィン型のものであって、ヘッダプレート２の長手方向に定間隔でチューブ挿通孔１が多数並列されると共に、そのチューブ挿通孔１の孔縁部が僅かにバーリング加工されてなる。 Next, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a longitudinal sectional view of a main part of a tube connection structure of a heat exchanger according to the present invention, which is a cross section on the long axis of an opening of a flat tube 3. FIG. 2 is an exploded perspective view of the main part, and FIG. 3 shows a free state (A) of the reinforcing plate 6 and a state (B) in which the reinforcing plate 6 is fitted into the opening of the flat tube 3.
1 and 2, the heat exchanger of this example is a corrugated fin type in which a number of flat tubes 3 are arranged in parallel, and the tube insertion holes 1 are arranged at regular intervals in the longitudinal direction of the header plate 2. A large number are arranged in parallel, and the hole edge portion of the tube insertion hole 1 is slightly burred.

このようなヘッダプレート２を上下に一対（下側を省略）有し、各チューブ挿通孔１に偏平チューブ３の両端部が挿通され、各偏平チューブ３間にフィン12が配置される。そして、このチューブ挿通孔１と偏平チューブ３の端部との補強を行う補強プレート６は、ヘッダプレート２，偏平チューブ３と同一の金属材のプレス成形体からなり、幅方向の両端部の外側に複数のＵ字状の弾性爪部４が、偏平チューブの並列ピッチで並列され、その両端部間が多数の架橋部５で一体に連結されている。
この架橋部５は、補強プレート６の長手方向に隣り合う弾性爪部４間に夫々位置し、隣り合う一対の架橋部５間に相対的にスリット11が形成される。そしてこのスリット11の両端に各弾性爪部４が位置される。 A pair of such header plates 2 are provided on the top and bottom (the lower side is omitted), and both ends of the flat tubes 3 are inserted into the respective tube insertion holes 1, and fins 12 are arranged between the flat tubes 3. The reinforcing plate 6 that reinforces the tube insertion hole 1 and the end portion of the flat tube 3 is made of the same metal press-formed body as the header plate 2 and the flat tube 3, and is outside the both end portions in the width direction. A plurality of U-shaped elastic claws 4 are arranged in parallel at the parallel pitch of the flat tubes, and both ends thereof are integrally connected by a number of bridging portions 5.
The bridging portions 5 are positioned between the elastic claws 4 adjacent to each other in the longitudinal direction of the reinforcing plate 6, and a slit 11 is relatively formed between a pair of adjacent bridging portions 5. The elastic claws 4 are positioned at both ends of the slit 11.

弾性爪部４は、図３（Ａ）に示す如く、その開口側の幅が底部の幅よりも広く、その角度がθとなるように形成されている。そして、スリット11の両側に位置する一対の弾性爪部４間の間隔は、偏平チューブ３の長軸の幅よりも僅かに大に形成されている。なお、弾性爪部４の外側面の断面は偏平チューブ３の開口の長軸側端部断面に整合する。
このような補強プレート６は、ヘッダプレート２に挿通された偏平チューブ３の端部に弾性爪部４のＵ字状の底部側から嵌着される。このとき弾性爪部４は弾性変形し、図３の（Ａ）から（Ｂ）の状態になる。そして、弾性爪部４の外側面が偏平チューブ３の長軸側の両端部内面に接触する。 As shown in FIG. 3A, the elastic claw portion 4 is formed such that its opening side width is wider than the bottom width and its angle is θ. The distance between the pair of elastic claws 4 located on both sides of the slit 11 is formed slightly larger than the width of the long axis of the flat tube 3. The cross section of the outer surface of the elastic claw 4 is aligned with the cross section of the end on the long axis side of the opening of the flat tube 3.
Such a reinforcing plate 6 is fitted to the end of the flat tube 3 inserted through the header plate 2 from the U-shaped bottom side of the elastic claw 4. At this time, the elastic claw portion 4 is elastically deformed to be in a state from (A) to (B) in FIG. And the outer surface of the elastic claw part 4 contacts the inner surface of both ends of the long axis side of the flat tube 3.

そして、互いに接触する各部品の表面には予めろう材が被覆または付着され、高温の炉内で一体的にろう付け固定される。このとき、図１に示すごとく、弾性爪部４の外側面と偏平チューブ３の長軸側内面とが一体的にろう付けされ、そこにろう材のフィレット13が形成される。それと共に、偏平チューブ３の外面とヘッダプレート２のチューブ挿通孔１との間にもろう材のフィレット13が形成される。そして、弾性爪部４と偏平チューブ３の内面とのろう付けにより、最も亀裂の生じ易い偏平チューブ３の部分を補強する。
次いで、ヘッダプレート２の環状溝部９にＯリング８を介して樹脂製のヘッダ本体７の裾部が嵌着し、環状溝部９の側壁端部をカシメることによりカシメ部10を形成して熱交換器を完成する。 Then, a brazing material is coated or adhered in advance to the surfaces of the parts that are in contact with each other, and are integrally brazed and fixed in a high-temperature furnace. At this time, as shown in FIG. 1, the outer surface of the elastic claw portion 4 and the inner surface on the long axis side of the flat tube 3 are integrally brazed, and a fillet 13 of brazing material is formed there. At the same time, a filler fillet 13 is formed between the outer surface of the flat tube 3 and the tube insertion hole 1 of the header plate 2. The portion of the flat tube 3 that is most prone to cracking is reinforced by brazing the elastic claw portion 4 and the inner surface of the flat tube 3.
Next, the bottom of the header body 7 made of resin is fitted to the annular groove portion 9 of the header plate 2 via the O-ring 8, and the crimping portion 10 is formed by crimping the side wall end of the annular groove portion 9. Complete the exchanger.

そして、ヘッダ本体７内に導かれる熱交換媒体は、偏平チューブ３の開口から出入する。このとき、補強プレート６のスリット11の存在により、熱交換媒体は偏平チューブ３に円滑に出入することができる。
なお、本発明の補強プレート６は、全ての偏平チューブ３に嵌着する弾性爪部４を設ける場合と、ヘッダープレート２の両端部に位置する偏平チューブ３のごとく、特に亀裂が生じ易い複数の偏平チューブ３のみに嵌着する複数の弾性爪部４を設ける場合とのいずれにも適用できる。
また、この例では樹脂性のヘッダ本体７を用いたが、それに代えて金属製のヘッダ本体７を用いることができる。その場合には、ヘッダ本体７の開口端とヘッダープレート２の周縁部とが一体にろう付け固定される。 The heat exchange medium guided into the header body 7 enters and exits from the opening of the flat tube 3. At this time, the heat exchange medium can smoothly enter and exit the flat tube 3 due to the presence of the slits 11 of the reinforcing plate 6.
Note that the reinforcing plate 6 of the present invention has a plurality of cracks that are particularly susceptible to cracking, as in the case of providing the elastic claws 4 that fit into all the flat tubes 3 and the flat tubes 3 positioned at both ends of the header plate 2. The present invention can be applied to both cases where a plurality of elastic claws 4 that are fitted only to the flat tube 3 are provided.
In this example, the resinous header body 7 is used, but a metal header body 7 can be used instead. In that case, the opening end of the header body 7 and the peripheral edge of the header plate 2 are integrally brazed and fixed.

本発明の熱交換器のチューブ接続構造の要部縦断面図であって、偏平チューブ３の開口の長軸上における縦断面図。It is a principal part longitudinal cross-sectional view of the tube connection structure of the heat exchanger of this invention, Comprising: The longitudinal cross-sectional view on the longitudinal axis of the opening of the flat tube 3. FIG. 本発明の熱交換器のチューブ接続構造の要部分解斜視図。The principal part disassembled perspective view of the tube connection structure of the heat exchanger of this invention. 補強プレート６の自由状態における縦断面図（Ａ）及び補強プレート６を偏平チューブ３の開口に嵌着した状態における縦断面図（Ｂ）。The longitudinal cross-sectional view (A) in the free state of the reinforcement plate 6 and the longitudinal cross-sectional view (B) in the state which fitted the reinforcement plate 6 in opening of the flat tube 3. FIG.

符号の説明Explanation of symbols

１ チューブ挿通孔
２ ヘッダプレート
３ 偏平チューブ
４ 弾性爪部
５ 架橋部
６ 補強プレート DESCRIPTION OF SYMBOLS 1 Tube insertion hole 2 Header plate 3 Flat tube 4 Elastic nail | claw part 5 Bridging part 6 Reinforcement plate

７ ヘッダ本体
８ Ｏリング
９ 環状溝部
10 カシメ部
11 スリット
12 フィン
13 フィレット 7 Header body 8 O-ring 9 Annular groove
10 Caulking section
11 Slit
12 fins
13 Fillet

Claims (2)

多数の偏平なチューブ挿通孔(1)が定間隔に並列して穿設されたヘッダプレート(2)と、各チューブ挿通孔(1)に端部が挿通されてろう付け固定された多数の偏平チューブ(3)と、を具備する熱交換器のチューブ接続構造において、
両端部の外側に複数のＵ字状の弾性爪部(4)が、前記偏平チューブ(3)の並列ピッチで並列され、その両端部間が一以上の架橋部(5)で一体に連結された補強プレート(6)を有し、
その弾性爪部(4)は、その各Ｕ字状の一対の対向面が、偏平チューブの開口の長軸方向に直交し且つ、自由状態で、その一対の対向面のなす角度θが鋭角に形成されると共に、前記架橋部(5)の両側に位置する一対の弾性爪部(4)の両外側面間の距離が偏平チューブ(3)の開口の長軸長さより大に形成され、
その補強プレート(6)の全ての弾性爪部(4)が、そのＵ字の底側から各偏平チューブ(3)の開口に同時に圧入され、その圧入に伴いそれぞれ弾性変形して、その弾性爪部(4)の外側面が偏平チューブ(3)の開口の長軸側の両端内面に平行に接した状態でその接触面が一体にろう付け固定されたことを特徴とする熱交換器のチューブ接続構造。 Header plate (2) with many flat tube insertion holes (1) drilled in parallel at regular intervals, and many flats with end portions inserted into each tube insertion hole (1) and fixed by brazing In the tube connection structure of the heat exchanger comprising the tube (3),
A plurality of U-shaped elastic claws (4) are arranged in parallel at the parallel pitch of the flat tube (3) on the outside of both ends, and the ends are integrally connected by one or more bridging portions (5). A reinforcing plate (6)
The elastic claw portion (4) has a pair of U-shaped opposing surfaces orthogonal to the major axis direction of the opening of the flat tube, and the angle θ formed by the pair of opposing surfaces is an acute angle in a free state. And the distance between both outer surfaces of the pair of elastic claws (4) located on both sides of the bridging portion (5) is formed to be greater than the major axis length of the opening of the flat tube (3),
All the elastic claws (4) of the reinforcing plate (6) are simultaneously press-fitted into the opening of each flat tube (3) from the bottom side of the U-shaped, and elastically deformed with the press-fitting, respectively. A heat exchanger tube characterized in that the contact surface is integrally brazed and fixed in a state where the outer surface of the section (4) is in parallel with the inner surfaces of both ends on the long axis side of the opening of the flat tube (3) Connection structure. 請求項１において、
前記架橋部(5)が前記チューブ(3)の並列方向に隣り合う前記弾性爪部(4)の間に配置された熱交換器のチューブ接続構造。 In claim 1,
A tube connection structure of a heat exchanger in which the bridging portion (5) is disposed between the elastic claws (4) adjacent to each other in the parallel direction of the tube (3).
JP2008046467A 2008-02-27 2008-02-27 Tube connection structure of heat exchanger Expired - Fee Related JP5185655B2 (en)

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KR101805653B1 (en) * 2016-02-25 2017-12-08 주식회사 코렌스 EGR cooler with improved adhension property of gas tube
TWM550369U (en) * 2017-07-25 2017-10-11 Cryomax Cooling System Corp Reinforced connection sheet set for water pipe
US11143463B2 (en) * 2017-09-01 2021-10-12 Denso International America, Inc. Thermal stress relief stiffener
CN112944999A (en) * 2021-03-03 2021-06-11 浙江银轮机械股份有限公司 Mainboard subassembly and heat exchanger

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0245665Y2 (en) * 1985-08-30 1990-12-03
JP2927711B2 (en) * 1995-09-18 1999-07-28 東京ラヂエーター製造株式会社 Thermal distortion prevention structure of heat exchanger
DE10354382A1 (en) * 2003-11-20 2005-06-16 Behr Gmbh & Co. Kg Heat exchangers, in particular intercoolers for motor vehicles
GB2433111B (en) * 2005-12-09 2011-03-23 Denso Corp Heat exchanger

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20200132399A1 (en) * 2018-10-31 2020-04-30 Hanon Systems Heat exchanger header with stiffening element
US11073345B2 (en) * 2018-10-31 2021-07-27 Hanon Systems Heat exchanger header with stiffening element

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