JP2012145306A - Header of heat exchanger - Google Patents

Header of heat exchanger Download PDF

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JP2012145306A
JP2012145306A JP2011005896A JP2011005896A JP2012145306A JP 2012145306 A JP2012145306 A JP 2012145306A JP 2011005896 A JP2011005896 A JP 2011005896A JP 2011005896 A JP2011005896 A JP 2011005896A JP 2012145306 A JP2012145306 A JP 2012145306A
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header
wall
heat exchanger
tip
plate
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JP5953002B2 (en
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Ayanori Tezuka
綾典 手塚
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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 facilitate caulking and prevent the deformation of a header upon this work when a header body 1 having a pair of slots and a header plate 2 are caulked together in advance before fitted parts with the same are brazed.SOLUTION: Small slots 4 are formed on both ends of the header body 1, respectively. At each of the small slots 4, an inner wall 5 is made thicker than an outer wall 6, and the thickness of the outer wall 6 is reduced gradually toward its front end.

Description

本発明は、溝状に形成された一対のアルミニウム製材どうしを互いに嵌着し、筒状に形成し、その両端に一対の端蓋を配置して熱交換器用ヘッダを構成すると共に、一方の溝状材に多数のチューブ挿通孔を形成し、そこにチューブ端を嵌着し、全体を一体的にろう付け固定するものに関する。   According to the present invention, a pair of aluminum lumbers formed in a groove shape are fitted to each other and formed into a cylindrical shape, and a pair of end covers are arranged at both ends to constitute a heat exchanger header, and one groove The present invention relates to a structure in which a large number of tube insertion holes are formed in a material, a tube end is fitted therein, and the whole is integrally brazed and fixed.

アルミニウム製材によるヘッダは、一例として図４に示す如く、形成されている。このヘッダは、ヘッダ本体１の両端部に段付き部９を形成し、その段付き部９にヘッダプレート２の両端部を嵌着する。なお、ヘッダプレート２には多数の挿通孔８を穿設しておき、そこに偏平チューブ７を挿通する。なお、各ヘッダ本体１、ヘッダプレート２の表面には予めろう材を被覆しておくか、或いは接合部にろう材を配置し、それを溶融する。なお、そのろう付け前に、ヘッダ本体１とヘッダプレート２との嵌着部は予め点溶接あるいはカシメを行い、両者が分離しないようにしておく。次いで、ヘッダ本体１、ヘッダプレート２の継目および偏平チューブ７とヘッダプレート２との嵌着部を、炉内でろう付け固定する。また、このヘッダの長手方向両端には図示しない端蓋が嵌着され、その嵌着部も同様にろう付け固定される。   The header made of aluminum is formed as shown in FIG. 4 as an example. In this header, a stepped portion 9 is formed at both end portions of the header body 1, and both end portions of the header plate 2 are fitted into the stepped portion 9. The header plate 2 is provided with a number of insertion holes 8 through which the flat tubes 7 are inserted. In addition, the surface of each header main body 1 and header plate 2 is coated with a brazing material in advance, or a brazing material is disposed at the joint and melted. Before the brazing, the fitting portion between the header main body 1 and the header plate 2 is previously spot welded or caulked so that the two are not separated. Next, the header body 1, the joint of the header plate 2, and the fitting portion between the flat tube 7 and the header plate 2 are brazed and fixed in the furnace. Further, end caps (not shown) are fitted to both ends of the header in the longitudinal direction, and the fitting portions are similarly brazed and fixed.

さらに、下記特許文献１に記載の熱交換器用ヘッダは、タンク本体の両側壁の端面を溝状に形成し、そこにヘッダプレートの両側壁の端を嵌着し、そのタンク本体の溝状の外側の壁面をカシメて仮固定し、全体を高温の炉内でろう付けする提案がされている。   Furthermore, the header for a heat exchanger described in Patent Document 1 below has end faces of both side walls of the tank body formed in a groove shape, and ends of both side walls of the header plate are fitted therein, and the groove shape of the tank body is formed. There has been a proposal of caulking and temporarily fixing the outer wall surface and brazing the whole in a high-temperature furnace.

特開平５−９９５８４号公報Japanese Patent Laid-Open No. 5-99584

図４に示す、一対のヘッダ本体１、ヘッダプレート２の嵌着部間を仮溶接してろう付けするヘッダは、工程数が多くなり量産性に欠ける欠点があった。
また、特許文献１のように、ヘッダ本体１の両端部を二股に形成し、そこにヘッダプレート２を嵌着し、その二股の外側をカシメて仮固定しているものは、本発明者の実験によれば、そのカシメの際にヘッダプレートおよびヘッダ本体に変形が生じ、ヘッダの耐圧性を低下させると共に、チューブ挿通孔とチューブとの嵌着部に、その変形の影響を与え、チューブの嵌着部のろう付け不良を起こすおそれがあった。
そこで、本発明はかかる問題点を解決することを課題とする。 The header that is temporarily welded between the fitting portions of the pair of header main body 1 and header plate 2 shown in FIG.
Further, as in Patent Document 1, the header body 1 is formed with two ends, the header plate 2 is fitted therein, and the outside of the fork is crimped and temporarily fixed. According to the experiment, the header plate and the header main body are deformed during the caulking, and the pressure resistance of the header is lowered, and the fitting portion between the tube insertion hole and the tube is affected by the deformation. There was a risk of poor brazing of the fitting part.
Accordingly, an object of the present invention is to solve such problems.

請求項１に記載の本発明は、全体が溝状に形成されたヘッダ本体(1)の両縁と、全体が溝状に形成されたヘッダプレート(2)の両縁とを互いに嵌着して、その嵌着部を接合してなる熱交換器のヘッダにおいて、
前記ヘッダ本体(1)の両縁部が他の部分よりも肉厚に形成されると共に、その肉厚部(3)の端面に凹陥した小溝(4)が形成され、その小溝(4)の内面側の内側壁(5)の厚みが外面側の外側壁(6)のそれよりも厚く形成され、且つ外側壁(6)は内側壁(5)の高さより高く形成されると共に、その厚みがその根元部(6a)より先端部(6b)が次第に薄く形成され、
前記ヘッダプレート(2)はその溝状の両側壁部(2a)の断面が拡開形成され、その先端部(2c)が内面側にその外面を変化させた曲折部(2b)を有し、
前記ヘッダ本体(1)の前記小溝(4)に、前記ヘッダプレート(2)の両側壁部の先端部(2c)が嵌着された状態で、前記ヘッダ本体(1)の外側壁(6)がヘッダプレート(2)側にカシメられて、その内面(6c)がヘッダプレート(2)の外面に接触し、その先端部が前記ヘッダプレート(2)の先端部(2c)の曲折部(2b)を抜け止め抱持するようにされ、
その状態で、ヘッダ本体(1)とヘッダプレート(2)との間がろう付けされたことを特徴とする熱交換器のヘッダである。 The present invention according to claim 1 is configured such that both edges of the header body (1) formed entirely in a groove shape and both edges of the header plate (2) formed entirely in a groove shape are fitted to each other. In the header of the heat exchanger formed by joining the fitting portions,
Both edges of the header body (1) are formed thicker than the other parts, and a small groove (4) is formed in the end surface of the thick part (3). The inner wall (5) on the inner surface side is formed to be thicker than that of the outer wall (6) on the outer surface side, and the outer wall (6) is formed higher than the height of the inner wall (5). The tip (6b) is gradually thinner than the root (6a),
The header plate (2) has a groove-shaped side wall portion (2a) with an enlarged cross-section, and the tip portion (2c) has a bent portion (2b) whose outer surface is changed on the inner surface side,
The outer wall (6) of the header body (1) is fitted in the small groove (4) of the header body (1) with the end portions (2c) of both side walls of the header plate (2) fitted. Is crimped to the header plate (2) side, its inner surface (6c) is in contact with the outer surface of the header plate (2), and its tip is the bent portion (2b) of the tip (2c) of the header plate (2). )
In this state, the header of the heat exchanger is characterized in that the header body (1) and the header plate (2) are brazed.

請求項２に記載の本発明は、請求項１に記載の熱交換器のヘッダにおいて、
前記ヘッダプレート(2)の両側壁部(2a)の先端部(2c)の向きと、前記ヘッダ本体(1)の一対の前記小溝(4)の向きとが一致するように構成した熱交換器のヘッダである。 According to a second aspect of the present invention, in the header of the heat exchanger according to the first aspect,
A heat exchanger configured such that the direction of the front end portion (2c) of both side wall portions (2a) of the header plate (2) matches the direction of the pair of small grooves (4) of the header body (1). This is the header.

請求項３に記載の本発明は、請求項２に記載の熱交換器のヘッダにおいて、
前記ヘッダプレート(2)はその溝底が平坦な面に形成され、その平坦面(2d)に直交するように、その両側壁部(2a)の先端部(2c)が形成され、
前記ヘッダ本体(1)は横断面円弧状に形成され、その円弧の直径線ｄに共に直交するように、一対の前記小溝(4)の内側壁(5)および外側壁(6)の内面が形成され、前記かしめの前の状態で、その内側壁(5)および外側壁(6)の先端部が拡開された熱交換器のヘッダである。 According to a third aspect of the present invention, in the header of the heat exchanger according to the second aspect,
The header plate (2) is formed on a flat surface at the bottom of the groove, and the end portions (2c) of both side walls (2a) are formed so as to be orthogonal to the flat surface (2d).
The header body (1) is formed in an arc shape in cross section, and inner surfaces (5) and outer walls (6) of the pair of small grooves (4) are formed so that both are perpendicular to the diameter line d of the arc. It is a header of a heat exchanger that is formed and in which the front end portions of the inner wall (5) and the outer wall (6) are expanded in the state before the caulking.

請求項４に記載の本発明は、請求項２または請求項３に記載の熱交換器のヘッダにおいて、
前記ヘッダプレート(2)の前記曲折部(2b)が弧状に形成され、その曲折部(2b)の先端側および曲折部(2b)に対して、その反対側は断面外周が直線に形成され、
その曲折部(2b)を前記ヘッダ本体(1)の外側壁(6)の先端が超え、前記反対側の直線部に達するように、前記かしめを行った熱交換器のヘッダである。 According to a fourth aspect of the present invention, in the header of the heat exchanger according to the second or third aspect,
The bent portion (2b) of the header plate (2) is formed in an arc shape, with respect to the tip side and the bent portion (2b) of the bent portion (2b).
It is the header of the heat exchanger that has been caulked so that the tip of the outer wall (6) of the header main body (1) passes over the bent portion (2b) and reaches the linear portion on the opposite side.

請求項５に記載の本発明は、請求項４に記載の熱交換器のヘッダにおいて、
前記ヘッダ本体(1)の外側壁(6)の先端部(6b)の内面に僅かに内方に曲がる変曲点6dを形成した熱交換器のヘッダである。 According to a fifth aspect of the present invention, in the header of the heat exchanger according to the fourth aspect,
It is a header of a heat exchanger in which an inflection point 6d that slightly bends inward is formed on the inner surface of the front end portion (6b) of the outer wall (6) of the header body (1).

本発明の熱交換器のヘッダは、ヘッダ本体１の両端部に形成された小溝４に、ヘッダプレート２の先端部2cが嵌着された状態で、そのヘッダ本体１の外側壁６がヘッダプレート２側にカシメられて、それによってヘッダプレート２の先端部2cの曲折部2bを抜け止め抱持する。そして、その状態でろう付けされるから、ろう付け中にヘッダ本体１とヘッダプレート２との相対移動が生じることがなく、ろう付けの信頼性を向上できる。それと共に、カシメられるヘッダ本体１の外側壁６の厚みが、それに対向する内側壁５の厚みより薄く且つ、その先端部6bが次第に薄く形成されているから、そのカシメ時に、ヘッダが変形することを防止し、信頼性の高いろう付け構造を提供できる。   In the header of the heat exchanger of the present invention, the outer wall 6 of the header body 1 is the header plate in a state in which the leading end 2c of the header plate 2 is fitted in the small grooves 4 formed at both ends of the header body 1. It is crimped to the second side, and thereby holds and holds the bent portion 2b of the front end portion 2c of the header plate 2. And since it brazes in that state, the relative movement of the header main body 1 and the header plate 2 does not occur during brazing, and the reliability of brazing can be improved. At the same time, the thickness of the outer wall 6 of the header main body 1 to be caulked is thinner than the thickness of the inner side wall 5 facing it, and the tip 6b is formed to be gradually thinner, so that the header is deformed during the caulking. And a highly reliable brazing structure can be provided.

請求項２に記載の発明のように、ヘッダプレート２の側壁部2aの先端部2cの向きとヘッダ本体１の一対の小溝４の向きとを一致させた場合には、両者の嵌着を容易に行ないうる。それにより、量産性の高い熱交換器のヘッダを提供できる。   When the direction of the front end portion 2c of the side wall portion 2a of the header plate 2 and the direction of the pair of small grooves 4 of the header body 1 are made to coincide with each other as in the invention described in claim 2, it is easy to fit both of them. Can be done. Thereby, the header of the heat exchanger with high mass productivity can be provided.

請求項３に記載のように、ヘッダプレート２の溝底を平坦に形成し、それに直行するように側壁部2aの先端部2cを形成すると共に、ヘッダ本体１の小溝４の内側壁５および外側壁６内面をヘッダ本体１の横断面円弧の直系線ｄに直行するようにした場合には、ヘッダ本体１の先端部とヘッダプレート２の先端部との嵌着をより正確に行ないうる。それと共に、耐圧性の高いヘッダを提供できる。   As described in claim 3, the groove bottom of the header plate 2 is formed flat, the tip 2c of the side wall 2a is formed so as to be perpendicular thereto, and the inner wall 5 and the outer side of the small groove 4 of the header body 1 are formed. When the inner surface of the wall 6 is perpendicular to the straight line d of the arc of the cross section of the header body 1, the front end portion of the header body 1 and the front end portion of the header plate 2 can be more accurately fitted. In addition, a header with high pressure resistance can be provided.

上記構成において、請求項４に記載のように、ヘッダプレート２の側壁の曲折部2bを弧状に形成し、その曲折部2bの先端側および反対側の断面外周を直線に形成し、ヘッダ本体１の外側壁６先端がその曲折部2bを超え、直線部に達するようにカシメた場合には、ヘッダ本体１とヘッダプレート２とのカシメ状態をより確実にし、ろう付け時に両者が相対移動することを確実に防止できる。   In the above configuration, as described in claim 4, the bent portion 2b of the side wall of the header plate 2 is formed in an arc shape, and the outer periphery of the bent portion 2b on the tip side and the opposite side is formed in a straight line. When the end of the outer wall 6 is crimped so as to reach the straight portion beyond the bent portion 2b, the crimped state of the header main body 1 and the header plate 2 should be further ensured, and both of them relatively move during brazing. Can be reliably prevented.

上記構成において、請求項５に記載のように、ヘッダ本体１の外側壁６の先端部6bの内面に変曲点6dを形成した場合には、その変曲点6dの先端内面6cをヘッダプレート２の表面に確実に接触させることができ、ろう付けの信頼性を向上できる。   In the above configuration, when the inflection point 6d is formed on the inner surface of the tip portion 6b of the outer wall 6 of the header body 1 as described in claim 5, the tip inner surface 6c of the inflection point 6d is used as the header plate. 2 can be reliably brought into contact with the surface, and the brazing reliability can be improved.

本発明の熱交換器のヘッダの組立ての第１工程を示す要部縦断面図。The principal part longitudinal cross-sectional view which shows the 1st process of the assembly of the header of the heat exchanger of this invention. 図１のII部拡大図。The II section enlarged view of FIG. 同ヘッダの第２工程のカシメ状態を示す要部縦断面図。The principal part longitudinal cross-sectional view which shows the crimping state of the 2nd process of the header. 従来型ヘッダの要部縦断面図。The principal part longitudinal cross-sectional view of the conventional header.

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。
本発明のヘッダは、ヘッダ本体１とヘッダプレート２とその両端に嵌着される図示しない端蓋とからなる。
ヘッダ本体１は、横断面が半円以上の円弧状に形成され、その両端縁部に肉厚部３が形成されている。この肉厚部３は、それ以外のヘッダ本体１の肉厚よりも厚く形成されている。そして、その肉厚部３が横断面二股状に形成され、そこに小溝４を構成する。その小溝４は、その向きが直径線ｄに直交し、内側壁５と外側壁６とが対向する。
内側壁５はヘッダの内面側に位置し、外側壁６は外面側に位置する。そして、内側壁５の厚みを外側壁６のそれよりも厚くする。これは外側壁６をカシメる時、それを容易にカシメると共に、ヘッダ全体が内側に変形しないように、厚い内側壁５が変形防止の支持材を形成するものである。内側壁５は図２に示す如く、その内面5aが先端に向かって円弧状に拡がっており、それがヘッダプレート２の先端部2cを嵌着する際の、ガイドをなす。
外側壁６はその根元から先端に向かって次第に肉厚を薄くし、その先端部6bの先端内面6cに内方へわずかに曲がる変曲点6dを有する。 Next, embodiments of the present invention will be described with reference to the drawings.
The header of the present invention includes a header body 1, a header plate 2, and end covers (not shown) fitted to both ends thereof.
The header body 1 is formed in an arc shape having a cross section of a semicircle or more, and thick portions 3 are formed at both end edges. The thick portion 3 is formed thicker than the thickness of the other header body 1. And the thick part 3 is formed in the cross-sectional bifurcated shape, and the small groove 4 is comprised there. The direction of the small groove 4 is perpendicular to the diameter line d, and the inner wall 5 and the outer wall 6 face each other.
The inner wall 5 is located on the inner surface side of the header, and the outer wall 6 is located on the outer surface side. Then, the inner wall 5 is made thicker than the outer wall 6. This is because when the outer wall 6 is crimped, it is easily crimped, and the thick inner wall 5 forms a support member for preventing deformation so that the entire header is not deformed inward. As shown in FIG. 2, the inner wall 5 has an inner surface 5 a that extends in an arc shape toward the tip, which serves as a guide when the tip 2 c of the header plate 2 is fitted.
The outer wall 6 gradually decreases in thickness from the base toward the tip, and has an inflection point 6d that slightly bends inward on the tip inner surface 6c of the tip 6b.

次に、ヘッダプレート２は全体が溝状または樋状に形成され、その溝底に平坦面2dを形成する。そして、その平坦面2dに多数の挿通孔８が穿設されている。なお、挿通孔８は平坦面2dを超えた側壁部2aまで形成してもよい。ヘッダプレート２はその横断面が台形状に形成され、その先端部2cが平坦面2dに直行して配置されている。先端部2cの外面は平坦に形成され、それに次いで円弧状の曲折部2bを介し、平坦な側壁部2aに連続する。そして、側壁部2aの根元部で湾曲し平坦面2dに連設される。   Next, the entire header plate 2 is formed in a groove shape or a bowl shape, and a flat surface 2d is formed on the groove bottom. A large number of insertion holes 8 are formed in the flat surface 2d. The insertion hole 8 may be formed up to the side wall portion 2a beyond the flat surface 2d. The header plate 2 is formed in a trapezoidal cross section, and the tip 2c thereof is arranged so as to be perpendicular to the flat surface 2d. The outer surface of the tip portion 2c is formed flat, and then continues to the flat side wall portion 2a via the arc-shaped bent portion 2b. And it curves at the base part of the side wall part 2a and is connected to the flat surface 2d.

ヘッダ本体１の外側壁６の横断面長さは、ヘッダプレート２の断面の曲折部2bを超える長さとされる。これに対して内側壁５の横断面長さは、ヘッダプレート２の断面の先端部2c程度の長さとする。ヘッダプレート２の先端部2cの厚さは小溝４の幅よりも僅か小に形成されている。
この例では、少なくてもヘッダ本体１およびヘッダプレート２の外表面にろう材が被覆または載置されている。 The cross-sectional length of the outer wall 6 of the header body 1 is longer than the bent portion 2b of the cross section of the header plate 2. On the other hand, the cross-sectional length of the inner wall 5 is about the length of the tip 2c of the cross section of the header plate 2. The thickness of the front end 2c of the header plate 2 is formed to be slightly smaller than the width of the small groove 4.
In this example, the brazing material is coated or placed on the outer surfaces of the header main body 1 and the header plate 2 at least.

次いで、図３の如く、ヘッダ本体１の溝４の外側壁６をヘッダプレート２の外表面側にカシメる。この時、外側壁６の全体はその先端に向かって次第に薄肉に形成されているため、その中間部から先端部が容易に変形し、その内面がヘッダプレート２外表面に密着する。この時、外側壁６の先端はヘッダプレート２の平坦面2dを超える。この例では、円弧状に形成された曲折部2bはｓからｍまである。   Next, as shown in FIG. 3, the outer wall 6 of the groove 4 of the header body 1 is crimped to the outer surface side of the header plate 2. At this time, since the entire outer wall 6 is gradually formed thinner toward the tip, the tip is easily deformed from the intermediate portion, and the inner surface thereof is in close contact with the outer surface of the header plate 2. At this time, the tip of the outer wall 6 exceeds the flat surface 2 d of the header plate 2. In this example, the bent portion 2b formed in an arc shape has s to m.

そして、図２において、外側壁６の内面6cに変曲点6dが形成されることにより、カシメの際、図３に示す如く、変曲点6dより先端がヘッダプレート２外面にわずかに食い込み、ヘッダ本体１がヘッダプレート２を抜け止め抱持する。そして、並列された多数の挿通孔８にそれぞれ偏平チューブ７を嵌着し、ヘッダの長手方向両端に図示しない端蓋を被着する。そして、全体を組立てた状態で、高温の炉内に挿入し、一体的にろう付け固定して、熱交換器を完成する。   In FIG. 2, the inflection point 6d is formed on the inner surface 6c of the outer wall 6, so that when caulking, the tip slightly bites into the outer surface of the header plate 2 from the inflection point 6d as shown in FIG. The header body 1 holds and holds the header plate 2. Then, the flat tubes 7 are fitted into the numerous through holes 8 arranged in parallel, and end caps (not shown) are attached to both ends in the longitudinal direction of the header. Then, in the assembled state, it is inserted into a high-temperature furnace and integrally brazed and fixed to complete the heat exchanger.

１ ヘッダ本体
２ ヘッダプレート
2a 側壁部
2b 曲折部
2c 先端部
2d 平坦面
３ 肉厚部
４ 小溝
５ 内側壁
5a 先端内面 1 Header body 2 Header plate
2a Side wall
2b Turn part
2c Tip
2d Flat surface 3 Thick part 4 Small groove 5 Inner wall
5a Tip inner surface

６ 外側壁
6a 根元部
6b 先端部
6c 先端内面
6d 変曲点
７ 偏平チューブ
８ 挿通孔
９ 段付き部 6 outer wall
6a Root
6b Tip
6c Tip inner surface
6d Inflection point 7 Flat tube 8 Insertion hole 9 Stepped part

Claims (5)

全体が溝状に形成されたヘッダ本体(1)の両縁と、全体が溝状に形成されたヘッダプレート(2)の両縁とを互いに嵌着して、その嵌着部を接合してなる熱交換器のヘッダにおいて、
前記ヘッダ本体(1)の両縁部が他の部分よりも肉厚に形成されると共に、その肉厚部(3)の端面に凹陥した小溝(4)が形成され、その小溝(4)の内面側の内側壁(5)の厚みが外面側の外側壁(6)のそれよりも厚く形成され、且つ外側壁(6)は内側壁(5)の高さより高く形成されると共に、その厚みがその根元部(6a)より先端部(6b)が次第に薄く形成され、
前記ヘッダプレート(2)はその溝状の両側壁部(2a)の断面が拡開形成され、その先端部(2c)が内面側にその外面を変化させた曲折部(2b)を有し、
前記ヘッダ本体(1)の前記小溝(4)に、前記ヘッダプレート(2)の両側壁部の先端部(2c)が嵌着された状態で、前記ヘッダ本体(1)の外側壁(6)がヘッダプレート(2)側にカシメられて、その内面(6c)がヘッダプレート(2)の外面に接触し、その先端部が前記ヘッダプレート(2)の先端部(2c)の曲折部(2b)を抜け止め抱持するようにされ、
その状態で、ヘッダ本体(1)とヘッダプレート(2)との間がろう付けされたことを特徴とする熱交換器のヘッダ。 The both ends of the header body (1) formed entirely in the groove shape and the both edges of the header plate (2) formed entirely in the groove shape are fitted to each other, and the fitting portions are joined. In the heat exchanger header
Both edges of the header body (1) are formed thicker than the other parts, and a small groove (4) is formed in the end surface of the thick part (3). The inner wall (5) on the inner surface side is formed to be thicker than that of the outer wall (6) on the outer surface side, and the outer wall (6) is formed higher than the height of the inner wall (5). The tip (6b) is gradually thinner than the root (6a),
The header plate (2) has a groove-shaped side wall portion (2a) with an enlarged cross-section, and the tip portion (2c) has a bent portion (2b) whose outer surface is changed on the inner surface side,
The outer wall (6) of the header body (1) is fitted in the small groove (4) of the header body (1) with the end portions (2c) of both side walls of the header plate (2) fitted. Is crimped to the header plate (2) side, its inner surface (6c) is in contact with the outer surface of the header plate (2), and its tip is the bent portion (2b) of the tip (2c) of the header plate (2). )
In this state, the header of the heat exchanger, wherein the header body (1) and the header plate (2) are brazed. 請求項１に記載の熱交換器のヘッダにおいて、
前記ヘッダプレート(2)の両側壁部(2a)の先端部(2c)の向きと、前記ヘッダ本体(1)の一対の前記小溝(4)の向きとが一致するように構成した熱交換器のヘッダ。 In the header of the heat exchanger according to claim 1,
A heat exchanger configured such that the direction of the front end portion (2c) of both side wall portions (2a) of the header plate (2) matches the direction of the pair of small grooves (4) of the header body (1). Header. 請求項２に記載の熱交換器のヘッダにおいて、
前記ヘッダプレート(2)はその溝底が平坦な面に形成され、その平坦面(2d)に直交するように、その両側壁部(2a)の先端部(2c)が形成され、
前記ヘッダ本体(1)は横断面円弧状に形成され、その円弧の直径線ｄに共に直交するように、一対の前記小溝(4)の内側壁(5)および外側壁(6)の内面が形成され、前記かしめの前の状態で、その内側壁(5)および外側壁(6)の先端部が拡開された熱交換器のヘッダ。 In the header of the heat exchanger according to claim 2,
The header plate (2) is formed on a flat surface at the bottom of the groove, and the end portions (2c) of both side walls (2a) are formed so as to be orthogonal to the flat surface (2d).
The header body (1) is formed in an arc shape in cross section, and inner surfaces (5) and outer walls (6) of the pair of small grooves (4) are formed so that both are perpendicular to the diameter line d of the arc. A header of a heat exchanger that is formed and in which the front end portions of the inner wall (5) and the outer wall (6) are expanded in the state before the caulking. 請求項２または請求項３に記載の熱交換器のヘッダにおいて、
前記ヘッダプレート(2)の前記曲折部(2b)が弧状に形成され、その曲折部(2b)の先端側および曲折部(2b)に対して、その反対側は断面外周が直線に形成され、
その曲折部(2b)を前記ヘッダ本体(1)の外側壁(6)の先端が超え、前記反対側の直線部に達するように、前記かしめを行った熱交換器のヘッダ。 In the header of the heat exchanger according to claim 2 or claim 3,
The bent portion (2b) of the header plate (2) is formed in an arc shape, with respect to the tip side and the bent portion (2b) of the bent portion (2b).
The header of the heat exchanger that has been caulked so that the bent portion (2b) exceeds the tip of the outer wall (6) of the header body (1) and reaches the straight portion on the opposite side. 請求項４に記載の熱交換器のヘッダにおいて、
前記ヘッダ本体(1)の外側壁(6)の先端部(6b)の内面に僅かに内方に曲がる変曲点(6d)を形成した熱交換器のヘッダ。 In the header of the heat exchanger according to claim 4,
A header of a heat exchanger in which an inflection point (6d) that bends slightly inward is formed on the inner surface of the tip (6b) of the outer wall (6) of the header body (1).
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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59109789A (en) * 1982-12-15 1984-06-25 Nippon Radiator Co Ltd Manufacture of heat exchanger having tank made of synthetic resin
JPH0297705A (en) * 1988-06-15 1990-04-10 Mitsubishi Electric Corp Fixing of linear member
US5062476A (en) * 1991-02-28 1991-11-05 General Motors Corporation Heat exchanger with an extruded tank
JPH0599584A (en) * 1991-09-19 1993-04-20 Thermal Components Inc Manifold assembly for parallel flow type heat exchanger
US5226490A (en) * 1992-10-26 1993-07-13 General Motors Corporation Extruded tank pocket design for separator
JPH0735491A (en) * 1993-07-20 1995-02-07 Zexel Corp Header tank for heat exchanger
JP2006214656A (en) * 2005-02-04 2006-08-17 T Rad Co Ltd Connecting structure of heat exchanger
JP2007198721A (en) * 2005-12-26 2007-08-09 Denso Corp Heat exchanger
JP2008267693A (en) * 2007-04-20 2008-11-06 Denso Corp Heat exchanger

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59109789A (en) * 1982-12-15 1984-06-25 Nippon Radiator Co Ltd Manufacture of heat exchanger having tank made of synthetic resin
JPH0297705A (en) * 1988-06-15 1990-04-10 Mitsubishi Electric Corp Fixing of linear member
US5062476A (en) * 1991-02-28 1991-11-05 General Motors Corporation Heat exchanger with an extruded tank
JPH0599584A (en) * 1991-09-19 1993-04-20 Thermal Components Inc Manifold assembly for parallel flow type heat exchanger
US5226490A (en) * 1992-10-26 1993-07-13 General Motors Corporation Extruded tank pocket design for separator
JPH0735491A (en) * 1993-07-20 1995-02-07 Zexel Corp Header tank for heat exchanger
JP2006214656A (en) * 2005-02-04 2006-08-17 T Rad Co Ltd Connecting structure of heat exchanger
JP2007198721A (en) * 2005-12-26 2007-08-09 Denso Corp Heat exchanger
JP2008267693A (en) * 2007-04-20 2008-11-06 Denso Corp Heat exchanger

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