JP4372885B2 - Connection structure of combined heat exchanger - Google Patents

Connection structure of combined heat exchanger Download PDF

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Publication number
JP4372885B2
JP4372885B2 JP08921999A JP8921999A JP4372885B2 JP 4372885 B2 JP4372885 B2 JP 4372885B2 JP 08921999 A JP08921999 A JP 08921999A JP 8921999 A JP8921999 A JP 8921999A JP 4372885 B2 JP4372885 B2 JP 4372885B2
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Japan
Prior art keywords
heat exchanger
connection
hole
fitting
core
Prior art date
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JP08921999A
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Japanese (ja)
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JP2000280730A (en
Inventor
外治 田中
秀孝 新長
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T.RAD CO., L T D.
Valeo Thermal Systems Japan Corp
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T.RAD CO., L T D.
Valeo Thermal Systems Japan Corp
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Priority to JP08921999A priority Critical patent/JP4372885B2/en
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Description

【０００１】
【発明の属する技術分野】
本発明は主として、自動車用エンジン冷却水冷却用熱交換器とカークーラー用熱交換器とを一体的に接続する接続構造に関する。
【０００２】
【従来の技術】
自動車のカーエアコンとエンジン冷却水冷却用ラジエータとは、共にエンジンルームの前端部に近接して並列される。そのため両者間を予め接続しておき、両者一体でエンジン内に取付けたい場合が生じる。このようなとき、夫々の熱交換器のタンクまたは強度メンバに適宜なブラケットを取付け、且つブラケット間を接続金具及び締結ボルトを介して締結固定することが考えられる。
【０００３】
【発明が解決しようとする課題】
ところが、各熱交換器毎にブラケットを位置決めしてろう付け固定する作業は面倒であると共に部品点数が多くなり且つ、強度上も問題となるおそれがある。そこで本発明は、構造が簡単で且つ強度が高く、取付け易い複合型熱交換器の接続構造を提供することを課題とする。
【０００４】
【課題を解決するための手段】
請求項１に記載の本発明は、並列された多数のチューブとフィンとで第１コア１が形成され、夫々のチューブの両端部が夫々一対のヘッダパイプ２に液密に連通された第１熱交換器３と、
並列された多数のチューブとフィンとで第２コア４が形成され、夫々のチューブの両端部が夫々一対のタンク５に液密に連通された第２熱交換器６と、
前記ヘッダパイプ２の端部に前記第１コア１よりも軸線方向外方に突設された接続用嵌着部２ａと、
その接続用嵌着部２ａの外周に整合する嵌着孔７が一端側に形成されると共に、他端側に接続孔８が設けられたアーム９と、
前記タンク５または第２コア４の周縁の強度メンバ10に設けられた接続用ボルト孔11と、
を具備し、
そのアーム９の嵌着孔７が前記ヘッダパイプ２の接続用嵌着部２ａに嵌着されると共に、その接続孔８が前記接続用ボルト孔11に整合され、締結ボルト12を介して第１熱交換器３が第２熱交換器６に締結固定され、
前記ヘッダパイプ２の断面外周が円形に形成され、その軸線方向の両端に直径が漸次偏平に絞られるようにして先端が閉塞され、そこに前記接続用嵌着部２ａが突設された複合型熱交換器の接続構造である。
【０００５】
請求項２に記載の本発明は、請求項１において、
そのアーム９の嵌着孔７が、弾性パッキン13を介して前記ヘッダパイプ２の接続用嵌着部２ａに嵌着された複合型熱交換器の接続構造である。
【０００６】
請求項３に記載の本発明は、並列された多数のチューブとフィンとで第１コア１が形成され、夫々のチューブの両端部が夫々一対のヘッダパイプ２に液密に連通された第１熱交換器３と、
並列された多数のチューブとフィンとで第２コア４が形成され、夫々のチューブの両端部が夫々一対のタンク５に液密に連通された第２熱交換器６と、
前記ヘッダパイプ２の端部に前記第１コア１よりも軸線方向外方に突設された接続用嵌着部２ａと、
その接続用嵌着部２ａの外周に整合する嵌着孔７が一端側に形成されると共に、他端側に接続孔８が設けられたアーム９と、
前記タンク５または第２コア４の周縁の強度メンバ10に設けられた接続用ボルト孔11と、
を具備し、
そのアーム９の嵌着孔７が前記ヘッダパイプ２の接続用嵌着部２ａに嵌着されると共に、その接続孔８が前記接続用ボルト孔11に整合され、締結ボルト12を介して第１熱交換器３が第２熱交換器６に締結固定され、
そのアーム９の嵌着孔７が前記ヘッダパイプ２の接続用嵌着部２ａに嵌着された状態で、その嵌着部が一体的にろう付け固定され、
そのアーム９の接続孔８が締結ボルト12，12ａおよびシュラウド15を介して、第２熱交換器６の強度メンバ10またはタンク５に締結固定された複合型熱交換器の接続構造である。
【０００７】
【発明の実施の形態】
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は本発明の第１の実施の形態を示す分解斜視図であり、図２はその接続状態を示す要部縦断面図である。また、図３は本発明の第２の実施の形態を示す分解斜視図であり、図４は第３の実施の形態を示す要部斜視図、図５は第４の実施の形態を示す分解斜視図、図６はその組立状態を示す斜視図である。
図１及び図２に示す接続構造は、第１熱交換器３がカークーラー用のコンデンサとして用いられるものであり、第２熱交換器６がエンジン冷却水冷却用のものである。
第１熱交換器３は左右に離間して一対のヘッダパイプ２（左側省略）が配置され、多数のチューブとフィンとからなる第１コア１がそれらの間に配置されている。そして夫々のチューブの両端部がヘッダパイプ２に連通され、その連通部が液密にろう付け固定されてなる。このヘッダパイプ２は断面が円形に形成され、その一側面に多数の偏平なチューブ挿通孔が穿設されたものである。そしてヘッダパイプ２の上下両端は夫々第１コア１の上下両方向にその直径を保ったまま突出されて接続用嵌着部２ａを形成している。そしてヘッダパイプ２の上下両端には端蓋16が被嵌され、各部品間が一体的にろう付け固定されてなる。
【０００８】
次に、第２熱交換器６は上下に離間し一対のタンク５が設けられ、それらの間にフィンとチューブとからなる第２コア４が配置されている。そして第２コア４の夫々のチューブの両端部がタンク５の図示しない偏平なチューブ挿通孔に挿通され、その挿通部が液密にろう付け固定される。それと共に、各チューブ間にフィンが配置され、フィンとチューブとの間がろう付け固定されている。夫々のタンク５の長手方向両端で且つその外面には、埋込型の袋ナットが取付られ、その表面に接続用ボルト孔11が露出されている。
このようにしてなる第１熱交換器３と第２熱交換器６とを接続するアーム９は、一例として断面コ字状に形成され、その一端部に接続用嵌着部２ａに略整合する嵌着孔７が形成され、他端部に接続孔８が穿設されている。この嵌着孔７にはパッキン13が嵌着され、そのパッキン13を介して嵌着孔７が、ヘッダパイプ２の接続用嵌着部２ａに止着される。さらにアーム９の接続孔８とタンク５の接続用ボルト孔11とが整合され、それらに締結ボルト12が螺着締結される。
【０００９】
次に、図３の例は接続用嵌着部２ａの上下両端部が偏平に塑性加工され、その偏平の根元部に着座用のフランジ14が一体的にろう付け固定されたものである。そしてその接続用嵌着部２ａにパッキン13が被嵌され、そのパッキン13を介して接続用嵌着部２ａにアーム９の嵌着孔７が嵌着されるものである。
次に、図４の例は接続用嵌着部２ａの上端部を塑性変形により偏平に絞り込むと共に、その偏平の長軸側も絞り込んだ例である。
【００１０】
次に、図５の例は図１においてアーム９が第１熱交換器３の両側部に配置されるものであり、そのアーム９の上下両端にＬ字状部が設けられる。この例では、上端のＬ字状部はアーム９と一体に形成され、下端のそれは別部品により形成されている。そして夫々にヘッダパイプ２の接続用嵌着部２ａに整合する嵌着孔７が穿設され、その嵌着孔７がヘッダパイプ２の接続用嵌着部２ａに夫々嵌着される。そしてその嵌着部が一体的にろう付け固定され、第１熱交換器３はアーム９付きのものとして一体化される。そしてこの例では、シュラウド15は締結ボルト12ａを介して第２熱交換器６の強度メンバ10に締結固定される。次いで、そのシュラウド15の両側部間にアーム９が挿入され、そのボルト孔が整合され、そこに締結ボルト12が螺着締結されて第１熱交換器３と第２熱交換器６とシュラウド15とが一体的に接続される。即ち、この例では第１熱交換器３はシュラウド15を介して第２熱交換器６の接続用ボルト孔11に接続される。
【００１１】
【発明の作用・効果】
請求項１に記載の複合型熱交換器の接続構造によれば、ヘッダパイプ２の端部に軸線方向外方へ一体に延長して突設された接続用嵌着部２ａが設けられ、その接続用嵌着部２ａにアーム９の嵌着孔７が嵌着して、そのアーム９を介し第１熱交換器３が第２熱交換器６に締結固定されるものであるから、強度が強く且つ取付け容易な接続構造を提供できる。
さらに、ヘッダパイプ２の断面外周が円形に形成され、その軸方向両端部に直径が漸次偏平に絞られるようにしてその先端を閉塞し、そこに接続用嵌着部２ａが突設されたものであるから、ヘッダパイプ２の閉塞と接続用嵌着部２ａとが一体化され、部品点数が少なく製造し易い接続構造となり得る。
【００１２】
請求項２に記載の発明は、アーム９の嵌着孔７がパッキン13を介してヘッダパイプ２の接続用嵌着部２ａに嵌着される接続構造であるから、第１熱交換器３と第２熱交換器６との熱膨張の差異や振動を吸収し、信頼性の高い接続構造となる。
請求項３に記載の発明は、第１熱交換器３と第２熱交換器６とがアーム９及びシュラウド15を介して互いに締結固定されるものであるから、第１熱交換器３と第２熱交換器６とシュラウド15とを同時に締結固定し、全体としてコンパクトで部品点数が少なく取付け易い接続構造となり得る。
【図面の簡単な説明】
【図１】本発明の複合型熱交換器の接続構造の第１の実施の形態を示す分解斜視図。
【図２】同接続構造の接続状態を示す要部縦断面図。
【図３】本発明の複合型熱交換器の接続構造の第２の実施の形態を示す分解斜視図。
【図４】本発明の複合型熱交換器の接続構造の第３の実施の形態を示す要部斜視図。
【図５】本発明の複合型熱交換器の接続構造の第４の実施の形態を示す分解斜視図。
【図６】図５の組立状態を示す斜視図。
【符号の説明】
１ 第１コア
２ ヘッダパイプ
２ａ 接続用嵌着部
３ 第１熱交換器
４ 第２コア
５ タンク
６ 第２熱交換器
７ 嵌着孔
８ 接続孔
９ アーム
10 強度メンバ
11 接続用ボルト孔
12 締結ボルト
12ａ 締結ボルト
13 パッキン
14 フランジ
15 シュラウド
16 端蓋[0001]
BACKGROUND OF THE INVENTION
The present invention mainly relates to a connection structure that integrally connects an automotive engine coolant cooling heat exchanger and a car cooler heat exchanger.
[0002]
[Prior art]
The car air conditioner of the automobile and the radiator for cooling the engine coolant are juxtaposed in close proximity to the front end of the engine room. For this reason, there is a case in which both are connected in advance and it is desired to install them together in the engine. In such a case, it is conceivable that an appropriate bracket is attached to the tank or the strength member of each heat exchanger, and the brackets are fastened and fixed via connecting fittings and fastening bolts.
[0003]
[Problems to be solved by the invention]
However, the work of positioning and brazing the bracket for each heat exchanger is troublesome, increases the number of parts, and may cause a problem in strength. Accordingly, an object of the present invention is to provide a connection structure for a composite heat exchanger that is simple in structure, high in strength, and easy to install.
[0004]
[Means for Solving the Problems]
In the first aspect of the present invention, a first core 1 is formed by a plurality of tubes and fins arranged in parallel, and both ends of each tube are in fluid-tight communication with a pair of header pipes 2, respectively. Heat exchanger 3,
A second heat exchanger 6 in which a plurality of tubes and fins arranged in parallel form a second core 4 and both ends of each tube are in fluid-tight communication with a pair of tanks 5;
A connection fitting portion 2a projecting outward in the axial direction from the first core 1 at the end of the header pipe 2, and
An fitting hole 7 that is aligned with the outer periphery of the fitting part 2a for connection is formed on one end side, and an arm 9 provided with a connection hole 8 on the other end side;
A bolt hole 11 for connection provided in a strength member 10 at the periphery of the tank 5 or the second core 4;
Comprising
The fitting hole 7 of the arm 9 is fitted into the connecting fitting part 2 a of the header pipe 2, and the connecting hole 8 is aligned with the connecting bolt hole 11, and the first through the fastening bolt 12. The heat exchanger 3 is fastened and fixed to the second heat exchanger 6,
A composite type in which the outer periphery of the cross section of the header pipe 2 is formed in a circular shape, the tip is closed so that the diameter is gradually flattened at both ends in the axial direction, and the connection fitting portion 2a is protruded there. It is a connection structure of a heat exchanger.
[0005]
The present invention according to claim 2 is the method according to claim 1,
The connecting hole 7 of the arm 9 has a connecting structure of a composite heat exchanger in which the connecting hole 2 a of the header pipe 2 is fitted via the elastic packing 13.
[0006]
According to the third aspect of the present invention, a first core 1 is formed by a large number of tubes and fins arranged in parallel, and both ends of each tube are in fluid-tight communication with a pair of header pipes 2, respectively. Heat exchanger 3,
A second heat exchanger 6 in which a plurality of tubes and fins arranged in parallel form a second core 4 and both ends of each tube are in fluid-tight communication with a pair of tanks 5;
A connection fitting portion 2a projecting outward in the axial direction from the first core 1 at the end of the header pipe 2, and
An fitting hole 7 that is aligned with the outer periphery of the fitting part 2a for connection is formed on one end side, and an arm 9 provided with a connection hole 8 on the other end side;
A bolt hole 11 for connection provided in a strength member 10 at the periphery of the tank 5 or the second core 4;
Comprising
The fitting hole 7 of the arm 9 is fitted into the connecting fitting part 2 a of the header pipe 2, and the connecting hole 8 is aligned with the connecting bolt hole 11, and the first through the fastening bolt 12. The heat exchanger 3 is fastened and fixed to the second heat exchanger 6 ,
In a state where the fitting hole 7 of the arm 9 is fitted to the connecting fitting part 2a of the header pipe 2, the fitting part is integrally brazed and fixed,
The connecting hole 8 of the arm 9 is a connecting structure of a composite heat exchanger in which the connecting hole 8 is fastened and fixed to the strength member 10 of the second heat exchanger 6 or the tank 5 via the fastening bolts 12 and 12a and the shroud 15.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Next, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is an exploded perspective view showing a first embodiment of the present invention, and FIG. 2 is a longitudinal sectional view of an essential part showing a connection state thereof. FIG. 3 is an exploded perspective view showing a second embodiment of the present invention, FIG. 4 is a perspective view of a main part showing the third embodiment, and FIG. 5 is an exploded view showing the fourth embodiment. FIG. 6 is a perspective view showing the assembled state.
In the connection structure shown in FIGS. 1 and 2, the first heat exchanger 3 is used as a condenser for a car cooler, and the second heat exchanger 6 is for cooling an engine coolant.
A pair of header pipes 2 (left side omitted) are disposed in the first heat exchanger 3 so as to be separated from each other on the left and right, and a first core 1 composed of a large number of tubes and fins is disposed therebetween. Then, both end portions of each tube communicate with the header pipe 2, and the communication portions are brazed and fixed in a liquid-tight manner. The header pipe 2 has a circular cross section and has a number of flat tube insertion holes formed on one side thereof. The upper and lower ends of the header pipe 2 are projected in both the upper and lower directions of the first core 1 while maintaining their diameters to form connection fitting portions 2a. End caps 16 are fitted on both upper and lower ends of the header pipe 2, and the parts are integrally brazed and fixed.
[0008]
Next, the 2nd heat exchanger 6 is spaced apart up and down, and a pair of tank 5 is provided, The 2nd core 4 which consists of a fin and a tube is arrange | positioned among them. Then, both end portions of each tube of the second core 4 are inserted into a flat tube insertion hole (not shown) of the tank 5, and the insertion portions are brazed and fixed in a liquid-tight manner. At the same time, fins are disposed between the tubes, and the fins and the tubes are brazed and fixed. Implantable cap nuts are attached to both ends of each tank 5 in the longitudinal direction and on the outer surfaces thereof, and the connecting bolt holes 11 are exposed on the surfaces thereof.
The arm 9 that connects the first heat exchanger 3 and the second heat exchanger 6 thus formed is formed in a U-shaped cross section as an example, and is substantially aligned with the connection fitting portion 2a at one end thereof. A fitting hole 7 is formed, and a connection hole 8 is formed at the other end. A packing 13 is fitted into the fitting hole 7, and the fitting hole 7 is fixed to the connecting fitting portion 2 a of the header pipe 2 through the packing 13. Further, the connecting hole 8 of the arm 9 and the connecting bolt hole 11 of the tank 5 are aligned, and the fastening bolt 12 is screwed and fastened to them.
[0009]
Next, in the example of FIG. 3, both the upper and lower ends of the connecting fitting portion 2a are flatly plastic processed, and a seating flange 14 is integrally brazed and fixed to the flat base portion. A packing 13 is fitted on the connection fitting portion 2 a, and the fitting hole 7 of the arm 9 is fitted on the connection fitting portion 2 a via the packing 13.
Next, the example of FIG. 4 is an example in which the upper end portion of the connecting fitting portion 2a is narrowed down flatly by plastic deformation, and the long axis side of the flattened portion is also narrowed down.
[0010]
Next, in the example of FIG. 5, the arms 9 are arranged on both sides of the first heat exchanger 3 in FIG. 1, and L-shaped portions are provided on the upper and lower ends of the arms 9. In this example, the L-shaped portion at the upper end is formed integrally with the arm 9, and that at the lower end is formed by a separate part. And the fitting hole 7 which aligns with the connection fitting part 2a of the header pipe 2 is pierced, respectively, and the fitting hole 7 is each fitted by the connection fitting part 2a of the header pipe 2. And the fitting part is integrally brazed and fixed, and the 1st heat exchanger 3 is integrated as a thing with the arm 9. FIG. In this example, the shroud 15 is fastened and fixed to the strength member 10 of the second heat exchanger 6 via the fastening bolt 12a. Next, the arm 9 is inserted between both side portions of the shroud 15, the bolt holes are aligned, and the fastening bolt 12 is screwed and fastened to the first heat exchanger 3, the second heat exchanger 6, and the shroud 15. Are connected together. That is, in this example, the first heat exchanger 3 is connected to the connection bolt hole 11 of the second heat exchanger 6 through the shroud 15.
[0011]
[Operation and effect of the invention]
According to the connection structure of the composite heat exchanger according to claim 1, the connection fitting portion 2 a is provided at the end portion of the header pipe 2 so as to extend integrally outward in the axial direction. Since the fitting hole 7 of the arm 9 is fitted into the fitting part 2a for connection, and the first heat exchanger 3 is fastened and fixed to the second heat exchanger 6 via the arm 9, the strength is high. A connection structure that is strong and easy to install can be provided.
Further, the outer circumference of the header pipe 2 is formed in a circular shape, the tip is closed so that the diameter is gradually narrowed at both ends in the axial direction, and the connection fitting portion 2a is protruded there. Therefore, the closing of the header pipe 2 and the connection fitting portion 2a are integrated, and the connection structure can be easily manufactured with a small number of parts .
[0012]
Since the invention according to claim 2 is a connection structure in which the fitting hole 7 of the arm 9 is fitted to the connecting fitting portion 2a of the header pipe 2 via the packing 13, the first heat exchanger 3 and A difference in thermal expansion and vibration from the second heat exchanger 6 are absorbed, and a highly reliable connection structure is obtained.
In the third aspect of the invention, the first heat exchanger 3 and the second heat exchanger 6 are fastened and fixed to each other via the arm 9 and the shroud 15. 2 The heat exchanger 6 and the shroud 15 can be fastened and fixed at the same time, resulting in a connection structure that is compact as a whole and has a small number of parts and is easy to install.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view showing a first embodiment of a connection structure for a composite heat exchanger according to the present invention.
FIG. 2 is a longitudinal sectional view of a main part showing a connection state of the connection structure.
FIG. 3 is an exploded perspective view showing a second embodiment of a connection structure for a composite heat exchanger according to the present invention.
FIG. 4 is a perspective view of a principal part showing a third embodiment of a connection structure for a composite heat exchanger according to the present invention.
FIG. 5 is an exploded perspective view showing a fourth embodiment of a connection structure for a composite heat exchanger according to the present invention.
6 is a perspective view showing the assembled state of FIG. 5. FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 1st core 2 Header pipe 2a Connection fitting part 3 1st heat exchanger 4 2nd core 5 Tank 6 2nd heat exchanger 7 Insertion hole 8 Connection hole 9 Arm
10 Strength members
11 Connection bolt hole
12 Fastening bolt
12a Fastening bolt
13 Packing
14 Flange
15 Shroud
16 End lid

Claims (3)

並列された多数のチューブとフィンとで第１コア１が形成され、夫々のチューブの両端部が夫々一対のヘッダパイプ２に液密に連通された第１熱交換器３と、
並列された多数のチューブとフィンとで第２コア４が形成され、夫々のチューブの両端部が夫々一対のタンク５に液密に連通された第２熱交換器６と、
前記ヘッダパイプ２の端部に前記第１コア１よりも軸線方向外方に突設された接続用嵌着部２ａと、
その接続用嵌着部２ａの外周に整合する嵌着孔７が一端側に形成されると共に、他端側に接続孔８が設けられたアーム９と、
前記タンク５または第２コア４の周縁の強度メンバ10に設けられた接続用ボルト孔11と、
を具備し、
そのアーム９の嵌着孔７が前記ヘッダパイプ２の接続用嵌着部２ａに嵌着されると共に、その接続孔８が前記接続用ボルト孔11に整合され、締結ボルト12を介して第１熱交換器３が第２熱交換器６に締結固定され、
前記ヘッダパイプ２の断面外周が円形に形成され、その軸線方向の両端に直径が漸次偏平に絞られるようにして先端が閉塞され、そこに前記接続用嵌着部２ａが突設された複合型熱交換器の接続構造。A first heat exchanger 3 in which a first core 1 is formed by a large number of tubes and fins arranged in parallel, and both ends of each tube are in fluid-tight communication with a pair of header pipes 2;
A second heat exchanger 6 in which a plurality of tubes and fins arranged in parallel form a second core 4 and both ends of each tube are in fluid-tight communication with a pair of tanks 5;
A connection fitting portion 2a projecting outward in the axial direction from the first core 1 at the end of the header pipe 2, and
An fitting hole 7 that is aligned with the outer periphery of the fitting part 2a for connection is formed on one end side, and an arm 9 provided with a connection hole 8 on the other end side;
A bolt hole 11 for connection provided in a strength member 10 at the periphery of the tank 5 or the second core 4;
Comprising
The fitting hole 7 of the arm 9 is fitted into the connecting fitting part 2 a of the header pipe 2, and the connecting hole 8 is aligned with the connecting bolt hole 11, and the first through the fastening bolt 12. The heat exchanger 3 is fastened and fixed to the second heat exchanger 6 ,
A composite type in which the outer periphery of the cross section of the header pipe 2 is formed in a circular shape, the tip is closed so that the diameter is gradually flattened at both ends in the axial direction, and the connection fitting portion 2a is protruded there. Connection structure of heat exchanger. 請求項１において、
そのアーム９の嵌着孔７が、弾性パッキン13を介して前記ヘッダパイプ２の接続用嵌着部２ａに嵌着された複合型熱交換器の接続構造。 In claim 1 ,
A connection structure of a composite heat exchanger in which the fitting hole 7 of the arm 9 is fitted to the connecting fitting portion 2 a of the header pipe 2 via the elastic packing 13. 並列された多数のチューブとフィンとで第１コア１が形成され、夫々のチューブの両端部が夫々一対のヘッダパイプ２に液密に連通された第１熱交換器３と、
並列された多数のチューブとフィンとで第２コア４が形成され、夫々のチューブの両端部が夫々一対のタンク５に液密に連通された第２熱交換器６と、
前記ヘッダパイプ２の端部に前記第１コア１よりも軸線方向外方に突設された接続用嵌着部２ａと、
その接続用嵌着部２ａの外周に整合する嵌着孔７が一端側に形成されると共に、他端側に接続孔８が設けられたアーム９と、
前記タンク５または第２コア４の周縁の強度メンバ10に設けられた接続用ボルト孔11と、
を具備し、
そのアーム９の嵌着孔７が前記ヘッダパイプ２の接続用嵌着部２ａに嵌着されると共に、その接続孔８が前記接続用ボルト孔11に整合され、締結ボルト12を介して第１熱交換器３が第２熱交換器６に締結固定され、
そのアーム９の嵌着孔７が前記ヘッダパイプ２の接続用嵌着部２ａに嵌着された状態で、その嵌着部が一体的にろう付け固定され、
そのアーム９の接続孔８が締結ボルト12，12ａおよびシュラウド15を介して、第２熱交換器６の強度メンバ10またはタンク５に締結固定された複合型熱交換器の接続構造。 A first heat exchanger 3 in which a first core 1 is formed by a large number of tubes and fins arranged in parallel, and both ends of each tube are in fluid-tight communication with a pair of header pipes 2;
A second heat exchanger 6 in which a plurality of tubes and fins arranged in parallel form a second core 4 and both ends of each tube are in fluid-tight communication with a pair of tanks 5;
A connection fitting portion 2a projecting outward in the axial direction from the first core 1 at the end of the header pipe 2, and
An fitting hole 7 that is aligned with the outer periphery of the fitting part 2a for connection is formed on one end side, and an arm 9 provided with a connection hole 8 on the other end side;
A bolt hole 11 for connection provided in a strength member 10 at the periphery of the tank 5 or the second core 4;
Comprising
The fitting hole 7 of the arm 9 is fitted into the connecting fitting part 2 a of the header pipe 2, and the connecting hole 8 is aligned with the connecting bolt hole 11, and the first through the fastening bolt 12. The heat exchanger 3 is fastened and fixed to the second heat exchanger 6,
In a state where the fitting hole 7 of the arm 9 is fitted to the connecting fitting part 2a of the header pipe 2, the fitting part is integrally brazed and fixed,
A connection structure of a composite heat exchanger in which the connection hole 8 of the arm 9 is fastened and fixed to the strength member 10 of the second heat exchanger 6 or the tank 5 via fastening bolts 12 and 12a and a shroud 15.
JP08921999A 1999-03-30 1999-03-30 Connection structure of combined heat exchanger Expired - Fee Related JP4372885B2 (en)

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JP2002257495A (en) * 2001-02-28 2002-09-11 Toyo Radiator Co Ltd Connecting structure for a plurality of heat exchangers
KR100759792B1 (en) * 2001-09-08 2007-09-20 한라공조주식회사 Integral heat exchanger
KR100771990B1 (en) * 2001-12-05 2007-11-01 한라공조주식회사 Heat exchanger
JP4622473B2 (en) * 2003-12-09 2011-02-02 株式会社デンソー Cooling module
DE102004058724B4 (en) 2003-12-09 2018-11-15 Denso Corporation Heat exchanger and cooling module with this

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