JP2017164787A - Casing and method for manufacturing casing - Google Patents

Casing and method for manufacturing casing Download PDF

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JP2017164787A
JP2017164787A JP2016053426A JP2016053426A JP2017164787A JP 2017164787 A JP2017164787 A JP 2017164787A JP 2016053426 A JP2016053426 A JP 2016053426A JP 2016053426 A JP2016053426 A JP 2016053426A JP 2017164787 A JP2017164787 A JP 2017164787A
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casing
lid member
casing body
outer periphery
guide surface
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弘仁 杉本
Hirohito Sugimoto
弘仁 杉本
徹明 所
Tetsuaki Tokoro
徹明 所
将仁 関谷
Masahito Sekiya
将仁 関谷
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T Rad Co Ltd
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T Rad Co Ltd
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Abstract

PROBLEM TO BE SOLVED: To provide a method for readily fitting and blazing of a casing body and a lid member in a casing that fits an outer periphery of a heat exchanger and is constituted of the casing body and the lid member.SOLUTION: In a casing, a guide face 3 is formed in a lateral wall part 2b of the lid member 2 having an inner periphery matching with an outer periphery of an opening of the casing body 1 and a cut out part 4 is formed so as to be positioned on a side of a bottom face 2a relative to the guide face. The casing body formed into a box shape in the position of the cut out part is temporarily welded to the lid member. A core that is a laminate constituted of a number of flat tubes is stored in the casing.SELECTED DRAWING: Figure 2

Description

本発明は、熱交換器の外周を被嵌するケーシングに関する。   The present invention relates to a casing that fits the outer periphery of a heat exchanger.

下記特許文献１には、一対の箱状又は有底円筒状の第１部材と第２部材とを有し、両部材をろう付けした、耐圧性の高い容器またはタンクのろう付構造が開示されている。
この構造は、第２部材を第１部材に嵌着する時、それを容易にするため予め第１部材の開口を第２部材よりも外側に拡開し、その拡開部において両部材を嵌着し、それらの間をろう付固定するものである。 Patent Document 1 below discloses a brazing structure for a container or tank having a high pressure resistance, having a pair of box-shaped or bottomed cylindrical first member and second member, and brazing both members. ing.
In this structure, when the second member is fitted to the first member, the opening of the first member is previously expanded outward from the second member in order to facilitate this, and both members are fitted in the expanded portion. It is worn and brazed between them.

特開２０１２−１２５７８７号公報JP 2012-125787 A

上記特許文献１に記載のろう付構造は、その第１部材の開口部を外側に拡開し、第２部材との間に僅かな隙間を形成するものである。
このような第１部材の開口部を外側に拡開する構造のケーシングを製作することは、金型の製作その他を含め、その製造が極めて面倒で、コスト高になる。
そこで、本発明は製作が容易で、精度の高いケーシングおよびその製造方法を提供することを課題とする。 The brazing structure described in Patent Document 1 expands the opening of the first member outward and forms a slight gap with the second member.
Manufacturing a casing having such a structure in which the opening of the first member is expanded outward, including the mold manufacturing and the like, is extremely troublesome and costly.
Therefore, an object of the present invention is to provide a casing that is easy to manufacture and has high accuracy, and a method for manufacturing the same.

請求項１に記載の本発明は、
箱状に形成されたケーシング本体１と、そのケーシング本体１の開口の外周に整合する内周を有する蓋部材２と、によりケーシングが形成されており、
前記蓋部材２は、底面２ａと、その底面２ａからケーシング本体１側に立ち上げた側壁部２ｂとを有し、その側壁部２ｂの縁部には、ケーシング本体１の開口の外周が案内されて嵌着できるように内側から外側に湾曲する案内面３が形成されていると共に、その案内面３の縁より前記底面２ａ側に位置して、仮溶接用の欠切部４が設けられており、
ケーシング本体１の開口の外周が、蓋部材２に嵌着された状態で、ケーシング本体１の外周と蓋部材２とが、前記欠切部４において仮溶接されているケーシングである。 The present invention described in claim 1
A casing is formed by a casing body 1 formed in a box shape and a lid member 2 having an inner periphery that matches the outer periphery of the opening of the casing body 1.
The lid member 2 has a bottom surface 2a and a side wall portion 2b raised from the bottom surface 2a toward the casing body 1, and an outer periphery of the opening of the casing body 1 is guided to an edge portion of the side wall portion 2b. A guide surface 3 that is curved from the inside to the outside is formed so that it can be fitted, and a notch 4 for temporary welding is provided on the side of the bottom surface 2 a from the edge of the guide surface 3. And
In the state where the outer periphery of the opening of the casing body 1 is fitted to the lid member 2, the outer periphery of the casing body 1 and the lid member 2 are temporarily welded at the notch 4.

請求項２に記載の本発明は、箱状に形成されたケーシング本体１と、そのケーシング本体１の開口１ａに整合する外周を有する蓋部材２と、によりケーシングを製造する方法において、
前記蓋部材２は、底面２ａと、その底面２ａからケーシング本体１側に立ち上げた側壁部２ｂとを有し、その側壁部２ｂの縁部に内側から外側に湾曲する案内面３を形成すると共に、その案内面３の縁より前記底面２ａ側に位置して欠切部４を形成しておく工程と、
前記ケーシング本体１の前記開口１ａを、蓋部材２の前記側壁部２ｂの案内面３に導いて、両者を嵌着する工程と、
前記欠切部４でケーシング本体１と蓋部材２とを仮溶接する工程と、
その仮溶接後に、前記案内面３とケーシング本体１との間にろう材を保持し、次いでそのろう材を溶融してケーシング本体１と蓋部材２との間を一体にろう付する工程を具備するケーシングの製造方法である。 The present invention according to claim 2 is a method of manufacturing a casing by a casing main body 1 formed in a box shape and a lid member 2 having an outer periphery aligned with an opening 1a of the casing main body 1.
The lid member 2 has a bottom surface 2a and a side wall portion 2b raised from the bottom surface 2a toward the casing body 1 and forms a guide surface 3 that curves from the inside to the outside at the edge of the side wall portion 2b. And a step of forming the notch 4 on the bottom surface 2a side from the edge of the guide surface 3;
Guiding the opening 1a of the casing body 1 to the guide surface 3 of the side wall portion 2b of the lid member 2 and fitting them together;
A step of temporarily welding the casing body 1 and the lid member 2 at the notch 4;
After the temporary welding, a step of holding a brazing material between the guide surface 3 and the casing body 1 and then melting the brazing material to braze the casing body 1 and the lid member 2 together. This is a method for manufacturing a casing.

本発明のケーシングは、箱状に形成されたケーシング本体１と、そのケーシング本体１の開口の外周に整合する内周を有する蓋部材２と、によりケーシングが形成されており、蓋部材２は底面２ａと、その底面２ａからケーシング本体１側に立ち上げた側壁部２ｂとを有し、その側壁部２ｂの縁部に内側から外側に湾曲する案内面３が形成されていると共に、その案内面３の縁より前記底面２ａ側に位置して、仮溶接用の欠切部４が設けられているケーシングである。
そして、その案内面３の存在により、ケーシング本体１と、蓋部材２との嵌着が容易である。また、欠切部４の存在により、その欠切部４でケーシング本体１と蓋部材２とを体裁よく仮溶接できる仮組み構造を提供でき、その後のろう付を精度よく確実に行うことができる。 The casing of the present invention has a casing formed by a casing body 1 formed in a box shape and a lid member 2 having an inner periphery that matches the outer periphery of the opening of the casing body 1, and the lid member 2 is a bottom surface. 2a and a side wall portion 2b raised from the bottom surface 2a to the casing body 1 side, and a guide surface 3 curved from the inside to the outside is formed at the edge of the side wall portion 2b. 3 is a casing provided with a notched portion 4 for temporary welding located on the bottom surface 2a side from the edge of 3.
Then, due to the presence of the guide surface 3, the casing body 1 and the lid member 2 can be easily fitted. Further, the presence of the cutout portion 4 can provide a temporary assembly structure in which the casing main body 1 and the lid member 2 can be temporarily welded with the cutout portion 4, and subsequent brazing can be performed accurately and reliably. .

本発明のケーシングの製造方法は、蓋部材２の側壁部２ｂに湾曲する案内面３を形成すると共に、その案内面３の縁より前記底面２ａ側に位置して欠切部４を形成しておく工程と、ケーシング本体１を、蓋部材２の前記側壁部２ｂの案内面３に導いて、両者を嵌着する工程とを有するため、ケーシング本体１と蓋部材２との嵌着を迅速かつ容易に行える。
そして、欠切部４でケーシング本体１と蓋部材２とを仮溶接し、前記案内面３とケーシング本体１との間にろう材を保持し、ケーシング本体１と蓋部材２との間を一体にろう付するから、各部品の位置決めが容易で、ろう付を迅速に行える。 The casing manufacturing method of the present invention forms a guide surface 3 that is curved on the side wall 2b of the lid member 2, and forms a notch 4 that is positioned on the bottom surface 2a side from the edge of the guide surface 3. And the step of guiding the casing body 1 to the guide surface 3 of the side wall 2b of the lid member 2 and fitting them together, so that the casing body 1 and the lid member 2 can be fitted quickly and easily. Easy to do.
Then, the casing body 1 and the lid member 2 are temporarily welded at the notch 4, the brazing material is held between the guide surface 3 and the casing body 1, and the casing body 1 and the lid member 2 are integrated together. Since brazing is performed, the positioning of each part is easy and brazing can be performed quickly.

本発明のケーシングの分解斜視図。The exploded perspective view of the casing of the present invention. 同要部斜視図（Ａ）および、図２（Ａ）のＢ−Ｂ断面図（Ｂ）、並びに端部正面図（Ｃ）。The principal part perspective view (A), BB sectional drawing (B) of FIG. 2 (A), and edge part front view (C). 本発明の第２実施例の欠切部４の斜視図（Ａ）、および図３（Ａ）のＢ−Ｂ断面図（Ｂ）。The perspective view (A) of the notch part 4 of 2nd Example of this invention, and BB sectional drawing (B) of FIG. 3 (A). 本発明の蓋部材２の製作工程を示す説明図。Explanatory drawing which shows the manufacturing process of the cover member 2 of this invention. 本発明のろう付工程の断面図。Sectional drawing of the brazing process of this invention. 本発明の他のケーシングの分解斜視図。The disassembled perspective view of the other casing of this invention.

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、本発明のケーシングの分解斜視図であり、図２は、その要部斜視図（Ａ）およびそのＢ−Ｂ断面図（Ｂ）並びに端部正面図（Ｃ）である。
このケーシングは、ケーシング本体１と蓋部材２とからなり、それらが互いに嵌着されると共に、内部にコア１１が収納される。この例では、ケーシング本体１は箱状に形成され、その両端部の側面に一対の冷却水パイプ６が取付けられる。
ケーシング本体１、蓋部材２、コア１１の偏平チューブ７等に用いられる材料は、アルミニウム（アルミニウム合金を含む）、ステンレス等を用いることができる。 Next, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is an exploded perspective view of a casing according to the present invention, and FIG.
This casing is composed of a casing body 1 and a lid member 2, which are fitted together and a core 11 is accommodated therein. In this example, the casing body 1 is formed in a box shape, and a pair of cooling water pipes 6 are attached to the side surfaces of both ends thereof.
Aluminum (including an aluminum alloy), stainless steel, or the like can be used as the material used for the casing body 1, the lid member 2, the flat tube 7 of the core 11, and the like.

蓋部材２は、底面２ａとその底面２ａの外周に立ち上げられた側壁部２ｂとからなり、その底面２ａの一端に入口１２が形成されている。ケーシング本体１には、その側面に出口１３が設けられている。また、入口１２をケーシング本体１の端部に設けてもよい。なお、入口と出口は上記と逆でもよい。蓋部材２の側壁部２ｂは、その内周がケーシング本体１の外周に整合する。さらに、図２に示す如く、側壁部２ｂの縁部は、ケーシング本体１の開口の外周が案内されて、嵌着できるように内面側から外面側に湾曲する案内面３が形成されている。   The lid member 2 includes a bottom surface 2a and a side wall portion 2b raised on the outer periphery of the bottom surface 2a, and an inlet 12 is formed at one end of the bottom surface 2a. The casing body 1 is provided with an outlet 13 on a side surface thereof. Further, the inlet 12 may be provided at the end of the casing body 1. The inlet and outlet may be reversed. The inner periphery of the side wall 2 b of the lid member 2 is aligned with the outer periphery of the casing body 1. Furthermore, as shown in FIG. 2, a guide surface 3 that curves from the inner surface side to the outer surface side is formed at the edge portion of the side wall portion 2b so that the outer periphery of the opening of the casing body 1 is guided and can be fitted.

そして、この例では、２つの欠切部４が側壁部２ｂの対向位置に設けられている。この欠切部４の上縁は図２に示す如く、案内面３の端部よりも底面２ａ側に低く位置されている。さらに欠切部４の両端にはスリット１４が形成され、爪状になっている。
この欠切部４は、図２（Ｂ）に示すように、ケーシング本体１の外面に接触するように形成されている。ケーシング本体１の開口の外周が、蓋部材２に嵌着された状態で、ケーシング本体１の外周と蓋部材２とが、欠切部４において仮溶接により、これらの間の仮組み構造が形成されている。この切欠き４は、図３の如く、スリット１４を形成しなくともよい。 And in this example, the two notch parts 4 are provided in the opposing position of the side wall part 2b. As shown in FIG. 2, the upper edge of the notch 4 is positioned lower on the bottom surface 2 a side than the end of the guide surface 3. Furthermore, the slit 14 is formed in the both ends of the notch part 4, and it has a nail | claw shape.
As shown in FIG. 2B, the notch 4 is formed so as to contact the outer surface of the casing body 1. In a state where the outer periphery of the opening of the casing body 1 is fitted to the lid member 2, the outer periphery of the casing body 1 and the lid member 2 are temporarily welded at the notch 4 to form a temporary assembly structure therebetween. Has been. This notch 4 does not need to form the slit 14 as shown in FIG.

なお、この蓋部材２は、図４（Ａ）、（Ｂ）の如く、板材（アルミニウム、アルミニウム合金、ステンレス等）をプレス機械により切断することにより製作し、その切断面１５の口縁に案内面３が形成されている。図１のような蓋部材２の入口１２をバーリング加工により作成する場合には、図４（Ｃ）の如く、この案内面３により、蓋部材２の側壁部２ｂと案内面３とを治具で押えることができるため、案内面３がない場合に比べバーリング加工がし易く、部品精度が向上する。   The lid member 2 is manufactured by cutting a plate material (aluminum, aluminum alloy, stainless steel, etc.) with a press machine as shown in FIGS. 4A and 4B and guided to the lip of the cut surface 15. Surface 3 is formed. When the inlet 12 of the lid member 2 as shown in FIG. 1 is created by burring, the side wall 2b of the lid member 2 and the guide surface 3 are joined to each other by the guide surface 3 as shown in FIG. Therefore, burring processing is easier than in the case where there is no guide surface 3, and the accuracy of parts is improved.

このようにしてなるケーシング内には、多数の偏平チューブ７の積層体からなるコア１１が収納される。各偏平チューブ７は、上下一対の溝形のプレート８、プレート９との嵌着体からなる。各プレート８、９の長手方向の両端には、膨出部１０が厚み方向に膨出し、その膨出部において、互いに積層されている。なお、互いに接合される各部品の少なくとも一方には、予めろう材が被覆または塗布される。   In the casing thus formed, a core 11 made of a laminate of a large number of flat tubes 7 is housed. Each flat tube 7 is composed of a fitting body with a pair of upper and lower groove-shaped plates 8 and 9. A bulging portion 10 bulges in the thickness direction at both ends of the plates 8 and 9 in the longitudinal direction, and the bulging portions are stacked on each other. Note that a brazing material is coated or applied in advance to at least one of the parts to be joined to each other.

コア１１を蓋部材２内に載置すると共に、ケーシング本体１の開口縁を蓋部材２に嵌着する。この時、蓋部材２の側壁部２ｂには案内面３が形成されているので、ケーシング本体１の縁部はその案内面３に案内されて円滑に図２（Ａ）（Ｂ）（Ｃ）の如く、嵌着される。
次いで、欠切部４とケーシング本体１との間を少なくとも二カ所で仮溶接する。図２（Ｂ）は、その仮溶接５の説明図である。このように構成することにより、ケーシング本体１と蓋部材２とは位置決めされる。
次いで、案内面３とケーシング本体１との間にろう材を配置し、それを溶融することにより、ケーシング本体１と蓋部材２との間をろう付けする。
なお、コア１１は予め、ろう付したものを使用することができる。あるいは、全体を高温の炉内で一体的にろう付けしてもよい。
図５は蓋部材２とケーシング本体１とのろう付状態を示すものであり、両者間にろうフィレット１６が形成されている。 The core 11 is placed in the lid member 2 and the opening edge of the casing body 1 is fitted to the lid member 2. At this time, since the guide surface 3 is formed on the side wall 2b of the lid member 2, the edge portion of the casing body 1 is guided to the guide surface 3 and smoothly shown in FIGS. 2 (A), (B), and (C). It is inserted as follows.
Next, provisional welding is performed between the cutout portion 4 and the casing body 1 at at least two places. FIG. 2B is an explanatory diagram of the temporary welding 5. By comprising in this way, the casing main body 1 and the cover member 2 are positioned.
Next, a brazing material is disposed between the guide surface 3 and the casing body 1 and melted to braze the casing body 1 and the lid member 2.
The core 11 can be brazed in advance. Alternatively, the whole may be brazed integrally in a high-temperature furnace.
FIG. 5 shows a state in which the lid member 2 and the casing body 1 are brazed, and a braze fillet 16 is formed between them.

次に、図６は本発明の他のケーシングの実施例であり、この例ではケーシング本体１および蓋部材２がともに箱状に形成され、その両端に一対のタンク１７が配置されるものである。
そして、図１および図６の各例においては、一対の冷却水パイプ６からケーシング内に冷却水が流通し、排ガスが出入口を介してコア１１の各偏平チューブ７に供給されるものである。そして、その排ガスと冷却水との間に熱交換が行われる。 Next, FIG. 6 shows an embodiment of another casing of the present invention. In this example, the casing body 1 and the lid member 2 are both formed in a box shape, and a pair of tanks 17 are arranged at both ends thereof. .
In each example of FIGS. 1 and 6, cooling water flows from the pair of cooling water pipes 6 into the casing, and exhaust gas is supplied to each flat tube 7 of the core 11 through the inlet / outlet. And heat exchange is performed between the exhaust gas and the cooling water.

図１、図２、図３、図６の実施例で示した切欠き４は、ケーシング本体１の開口の外周と蓋体２の側壁部２ｂが、溶接を良好に行える範囲で、接していればよい（僅かな隙間は許容範囲となる）。このことから、ケーシング本体１の挿入性を阻害しないよう、図２、図６の切欠き４の爪を蓋部材２の外面側へ僅かに折り曲げておくことも可能である。   1, 2, 3, and 6, the notch 4 is in contact with the outer periphery of the opening of the casing body 1 and the side wall 2 b of the lid 2 within a range where welding can be satisfactorily performed. (Slight gaps are acceptable). Therefore, the claw of the notch 4 in FIGS. 2 and 6 can be slightly bent toward the outer surface side of the lid member 2 so as not to hinder the insertability of the casing body 1.

１ ケーシング本体
２ 蓋部材
２ａ 底面
２ｂ 側壁部
３ 案内面
４ 欠切部
５ 仮溶接
６ 冷却水パイプ
７ 偏平チューブ
８ プレート
９ プレート DESCRIPTION OF SYMBOLS 1 Casing main body 2 Lid member 2a Bottom face 2b Side wall part 3 Guide surface 4 Notch part 5 Temporary welding 6 Cooling water pipe 7 Flat tube 8 Plate 9 Plate

１０ 膨出部
１１ コア
１２ 入口
１３ 出口
１４ スリット
１５ 切断面
１６ ろうフィレット
１７ タンク
DESCRIPTION OF SYMBOLS 10 Swelling part 11 Core 12 Inlet 13 Outlet 14 Slit 15 Cutting surface 16 Wax fillet 17 Tank

Claims (2)

箱状に形成されたケーシング本体(１)と、そのケーシング本体(１)の開口の外周に整合する内周を有する蓋部材(２)と、によりケーシングが形成されており、
前記蓋部材(２)は、底面(２ａ)と、その底面(２ａ)からケーシング本体(１)側に立ち上げた側壁部(２ｂ)とを有し、その側壁部(２ｂ)の縁部には、ケーシング本体(１)の開口の外周が案内されて嵌着できるように内側から外側に湾曲する案内面(３)が形成されていると共に、その案内面(３)の縁より前記底面(２ａ)側に位置して、仮溶接用の欠切部(４)が設けられており、
ケーシング本体(１)の開口の外周が、蓋部材(２)に嵌着された状態で、ケーシング本体(１)の外周と蓋部材(２)とが、前記欠切部(４)において仮溶接されているケーシング。 A casing is formed by a casing body (1) formed in a box shape, and a lid member (2) having an inner periphery aligned with the outer periphery of the opening of the casing body (1).
The lid member (2) has a bottom surface (2a) and a side wall portion (2b) raised from the bottom surface (2a) to the casing body (1) side. Is formed with a guide surface (3) that curves from the inside to the outside so that the outer periphery of the opening of the casing body (1) can be guided and fitted, and the bottom surface (3) is formed from the edge of the guide surface (3). 2a) is located on the side, a notch (4) for temporary welding is provided,
With the outer periphery of the opening of the casing body (1) fitted into the lid member (2), the outer periphery of the casing body (1) and the lid member (2) are temporarily welded at the notch (4). Casing. 箱状に形成されたケーシング本体(１)と、そのケーシング本体(１)の開口(１ａ)に整合する外周を有する蓋部材(２)と、によりケーシングを製造する方法において、
前記蓋部材(２)は、底面(２ａ)と、その底面(２ａ)からケーシング本体(１)側に立ち上げた側壁部(２ｂ)とを有し、その側壁部(２ｂ)の縁部に内側から外側に湾曲する案内面(３)を形成すると共に、その案内面(３)の縁より前記底面(２ａ)側に位置して欠切部(４)を形成しておく工程と、
前記ケーシング本体(１)の前記開口(１ａ)を、蓋部材(２)の前記側壁部(２ｂ)の案内面(３)に導いて、両者を嵌着する工程と、
前記欠切部(４)でケーシング本体(１)と蓋部材(２)とを仮溶接する工程と、
その仮溶接後に、前記案内面(３)とケーシング本体(１)との間にろう材を保持し、次いでそのろう材を溶融してケーシング本体(１)と蓋部材(２)との間を一体にろう付する工程を具備するケーシングの製造方法。 In a method of manufacturing a casing by a casing body (1) formed in a box shape and a lid member (2) having an outer periphery aligned with an opening (1a) of the casing body (1),
The lid member (2) has a bottom surface (2a) and a side wall portion (2b) raised from the bottom surface (2a) to the casing body (1) side, at the edge of the side wall portion (2b). Forming a guide surface (3) curved from the inside to the outside, and forming a notch (4) on the bottom surface (2a) side of the edge of the guide surface (3);
Guiding the opening (1a) of the casing body (1) to the guide surface (3) of the side wall (2b) of the lid member (2) and fitting them together;
Temporarily welding the casing body (1) and the lid member (2) at the notch (4);
After the temporary welding, the brazing material is held between the guide surface (3) and the casing main body (1), and then the brazing material is melted so that the gap between the casing main body (1) and the lid member (2) is obtained. A method for producing a casing comprising a step of brazing together.
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JP2007239485A (en) * 2006-03-06 2007-09-20 T Rad Co Ltd Joining structure for tank
JP2008501923A (en) * 2004-06-04 2008-01-24 ベール ゲーエムベーハー ウント コー カーゲー Heat exchanger
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JPH0245802U (en) * 1988-09-26 1990-03-29
JP2000104634A (en) * 1998-09-29 2000-04-11 Mitsubishi Automob Eng Co Ltd Surge tank and its manufacture
JP2008501923A (en) * 2004-06-04 2008-01-24 ベール ゲーエムベーハー ウント コー カーゲー Heat exchanger
JP2007239485A (en) * 2006-03-06 2007-09-20 T Rad Co Ltd Joining structure for tank
JP2012032060A (en) * 2010-07-29 2012-02-16 Chofu Seisakusho Co Ltd Latent heat recovery heat exchanger and water heater using the same

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