JP4996188B2 - Manufacturing method of header tank for heat exchanger - Google Patents

Manufacturing method of header tank for heat exchanger Download PDF

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JP4996188B2
JP4996188B2 JP2006260651A JP2006260651A JP4996188B2 JP 4996188 B2 JP4996188 B2 JP 4996188B2 JP 2006260651 A JP2006260651 A JP 2006260651A JP 2006260651 A JP2006260651 A JP 2006260651A JP 4996188 B2 JP4996188 B2 JP 4996188B2
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flow path
tank
groove
forming step
header tank
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JP2008080345A (en
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宏行 斗谷
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Calsonic Kansei Corp
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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
    • F28F9/0219—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
    • F28F9/0202—Header boxes having their inner space divided by partitions
    • F28F9/0204—Header boxes having their inner space divided by partitions for elongated header box, e.g. with transversal and longitudinal partitions
    • F28F9/0214—Header boxes having their inner space divided by partitions for elongated header box, e.g. with transversal and longitudinal partitions having only longitudinal partitions

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)

Description

本発明は、例えば熱交換器用ヘッダタンクのタンク製造方法に関する。   The present invention relates to a tank manufacturing method of a header tank for a heat exchanger, for example.

熱交換器は、内部に冷媒が流れる長尺状のチューブと、このチューブ内を流れる冷媒に当たる風と熱交換する冷却フィンと、を交互に複数重ねて形成されるコア部と、このコア部の両端に設けられるヘッダタンクとで構成されている。   The heat exchanger includes a core portion formed by alternately stacking a long tube through which a refrigerant flows and a cooling fin that exchanges heat with the wind that hits the refrigerant flowing in the tube. It consists of header tanks provided at both ends.

ヘッダタンクは、チューブ端部を挿入させる挿入孔部を複数形成した座板と、この座板に組み付けられるタンクと、からなり、これら座板とタンクはかしめ爪を折り曲げて加締めることにより固定されている（例えば、特許文献１、２など参照）。   The header tank is composed of a seat plate in which a plurality of insertion holes for inserting tube ends are formed, and a tank assembled to the seat plate. The seat plate and the tank are fixed by bending caulking claws. (See, for example, Patent Documents 1 and 2).

図４には、熱交換器用ヘッダタンクにおけるタンクの一例を示す。かかるタンク１００には、冷媒を流通させる湾曲形状をした２つの流路部１０１、１０２と、これら流路部１０１、１０２間を仕切る断面コ字状の突条部１０３と、各流路部１０１、１０２間の連通路及びチューブ端部の挿入部となる溝部１０４と、が形成されている。   In FIG. 4, an example of the tank in the header tank for heat exchangers is shown. The tank 100 includes two flow passage portions 101 and 102 having a curved shape for circulating a refrigerant, a protrusion 103 having a U-shaped cross section that partitions the flow passage portions 101 and 102, and each flow passage portion 101. , 102 and a groove 104 serving as an insertion portion at the end of the tube.

前記タンク１００は、例えばアルミニウムなどからなる平板の中央に、その長手方向に沿って断面コ字状をなす突条部１０３を形成した後、その突条部１０３に櫛歯状のパンチを押し込んで前記溝部１０４を形成し、前記突条部１０３の両側部をそれぞれ湾曲させて流路部１０１、１０２を形成することで製造される。
特開２００５−５５０３７号公報 特開２００３−１５６２９６号公報 The tank 100 is formed by, for example, forming a protrusion 103 having a U-shaped cross section along the longitudinal direction in the center of a flat plate made of aluminum or the like, and then pressing a comb-like punch into the protrusion 103. The groove portion 104 is formed, and the flow path portions 101 and 102 are formed by curving both side portions of the protrusion 103.
JP-A-2005-55037 JP 2003-156296 A

しかしながら、溝部１０４を櫛歯状のパンチで押し込んで形成した場合、図５に示すように、溝部１０４の底部両脇には余肉１０５がはみ出してしまう。   However, when the groove portion 104 is formed by being pushed in with a comb-like punch, the surplus material 105 protrudes on both sides of the bottom portion of the groove portion 104 as shown in FIG.

この余肉１０５を取り除くためには、図６（Ａ）の流路部１０１、１０２を形成する前か、或いは図６（Ｂ）の流路部１０１、１０２を形成した後で、パンチ１０６にて余肉１０５を潰す必要がある。余肉１０５を潰すと、完全には余肉１０５を取り切れないため、タンク１００の寸法精度が落ちる。また、図７に示すように、その後の成形工程やデバイド、パッチ等のスリット加工部１０７に対して影響を及ぼす。また、流路部１０１、１０２を形成するのと同時に余肉１０５を潰すようにしても同様な問題が発生する。   In order to remove the surplus material 105, the punch 106 is formed before the flow passage portions 101 and 102 in FIG. 6A are formed or after the flow passage portions 101 and 102 in FIG. 6B are formed. It is necessary to crush the surplus meat 105. When the surplus meat 105 is crushed, the surplus meat 105 cannot be completely removed, so that the dimensional accuracy of the tank 100 decreases. Further, as shown in FIG. 7, it affects the subsequent molding process and the slit processing portion 107 such as a divide and a patch. In addition, the same problem occurs even if the extra wall 105 is crushed at the same time as the flow path portions 101 and 102 are formed.

そこで、本発明は、溝部に余肉を出させずに溝部加工を行い、余肉潰しの面倒な加工工程を無くし、寸法精度の高い熱交換器用ヘッダタンクのタンク製造方法を提供することを目的とする。   Therefore, the present invention has an object to provide a tank manufacturing method for a header tank for a heat exchanger with high dimensional accuracy, by performing groove processing without causing surplus in the groove, eliminating a troublesome processing step of crushing surplus. And

請求項１に記載の発明は、チューブ端部を挿入固定させて複数のチューブを所定間隔に配列させる座板に、冷媒流路を形成する逆Ｕ字状をなす２つの流路部とこれら流路部間を連通させ且つ前記各チューブ端部の挿入部となる溝部とを備えたタンクを取り付けることにより形成された熱交換器用ヘッダタンクのタンク製造方法において、平板の中央に、前記２つの流路部を分離すると共に前記座板との接触面を持つ断面コ字状の突条部を前記チューブの配列方向に形成する突条部形成工程と、この突条部形成工程後に前記突条部に櫛歯状のパンチを押し込んで前記溝部を形成する溝部形成工程と、この溝部形成工程後に前記突条部の両側部を湾曲させて前記流路部を形成する流路部形成工程とを備え、前記突条部形成工程では、前記突条部の高さＨｂを最終製品時の高さＨａよりも低くし、さらに、前記突条部の側壁部の傾斜角度θｂを鈍角とすることを特徴とする。 According to the first aspect of the present invention, two flow path portions having an inverted U-shape forming a refrigerant flow path are formed on a seat plate on which tube ends are inserted and fixed and a plurality of tubes are arranged at predetermined intervals, and these flow paths. In a tank manufacturing method for a header tank for a heat exchanger formed by attaching a tank having a channel portion and a groove portion serving as an insertion portion of each tube end portion, the two streams are arranged at the center of a flat plate. A ridge portion forming step for separating a road portion and forming a U-shaped ridge portion having a contact surface with the seat plate in the arrangement direction of the tubes, and after the ridge portion forming step, the ridge portion A groove portion forming step for forming the groove portion by pushing a comb-like punch into the groove portion, and a flow passage portion forming step for forming the flow passage portion by curving both side portions of the protruding portion after the groove portion forming step. In the protrusion forming step, the protrusion Is a lower than the height Ha of the time the final product Hb, further characterized in that the inclination angle θb of the side wall portions of the ridges and obtuse.

請求項１に記載の熱交換器用ヘッダタンクのタンク製造方法によれば、突条部形成工程において突条部の高さを最終製品時の高さよりも低くし、さらに、その突条部の側壁部の傾斜角度を鈍角とすることで、溝部形成工程で櫛歯状のパンチを前記突条部に押し込んで溝部を形成すれば、このパンチによる加圧力が鈍角とされた側壁部の傾斜角度により分散されることになり、余肉が幅方向に飛び出すことが無くなる。したがって、本発明方法によれば、面倒な余肉の潰し加工工程を無くすことができ、その後の後工程を安定して行え、寸法精度の高い熱交換器用ヘッダタンクのタンク製造方法を提供することができる。 According to the tank manufacturing method for a header tank for a heat exchanger according to claim 1, the height of the ridge is made lower than the height of the final product in the ridge formation step, and the side wall of the ridge is further formed. By making the angle of inclination of the part an obtuse angle , if the groove part is formed by pushing a comb-like punch into the ridge part in the groove part forming step, the pressurizing force by this punch is caused by the inclination angle of the side wall part made an obtuse angle As a result, it will be dispersed and the surplus will not jump out in the width direction. Therefore, according to the method of the present invention, it is possible to eliminate a troublesome process for crushing surplus meat, to provide a method for manufacturing a header tank for a heat exchanger with high dimensional accuracy, capable of stably performing subsequent processes. Can do.

以下、本発明を適用した具体的な実施の形態について図面を参照しながら詳細に説明する。   Hereinafter, specific embodiments to which the present invention is applied will be described in detail with reference to the drawings.

図１は本発明方法により製造される熱交換器用ヘッダタンクの斜視図、図２は本発明方法により製造される熱交換器用ヘッダタンクのタンク製造における突条部の高さ及び側壁部の傾斜角度の説明図、図３は本発明方法により製造される熱交換器用ヘッダタンクのタンク製造における溝部形成工程を示す図である。   FIG. 1 is a perspective view of a header tank for a heat exchanger manufactured by the method of the present invention, and FIG. 2 is a height of a ridge and an inclination angle of a side wall in the manufacture of a header tank for a heat exchanger manufactured by the method of the present invention. FIG. 3 is a view showing a groove forming step in manufacturing a header tank for a heat exchanger manufactured by the method of the present invention.

本発明方法の製造方法を説明する前に、熱交換器用ヘッダタンクの構造について簡単に説明する。熱交換器用ヘッダタンクは、図１に示すように、チューブ端部１Ａを挿入固定させて複数のチューブ１を所定間隔に配列させる座板２に、この座板２に形成したかしめ爪３を折り曲げて加締めることによりタンク４を固定してなるヘッダタンク５を備えて構成されている。   Before explaining the manufacturing method of the method of the present invention, the structure of the header tank for the heat exchanger will be briefly explained. As shown in FIG. 1, the header tank for a heat exchanger is formed by bending a caulking claw 3 formed on a seat plate 2 into which a tube end 1A is inserted and fixed and a plurality of tubes 1 are arranged at a predetermined interval. The header tank 5 is formed by fixing the tank 4 by caulking.

座板２は、長方形状をなす底板部６と、この底板部６の幅方向両端縁から長手方向に沿って立ち上がる側板部７と、を備え、これら底板部６と側板部７とにより断面略コ字状として形成されている。底板部６には、チューブ端部１Ａをヘッダタンク５内へと突出させるチューブ挿入孔８がその長手方向に所定間隔を置いて形成されている。一方、側板部７には、タンク４と座板２とを加締めて固定させるためのかしめ爪３が設けられている。かしめ爪３は、前記側板部７の上端面７ａにその長手方向に沿って複数形成され、座板２に挿入されたチューブ１とは対応しない位置にそれぞれ設けられている。   The seat plate 2 includes a bottom plate portion 6 having a rectangular shape, and side plate portions 7 rising along the longitudinal direction from both end edges in the width direction of the bottom plate portion 6, and the cross section of the bottom plate portion 6 and the side plate portion 7 is substantially omitted. It is formed as a U-shape. In the bottom plate portion 6, tube insertion holes 8 for projecting the tube end portion 1 </ b> A into the header tank 5 are formed at predetermined intervals in the longitudinal direction. On the other hand, the side plate portion 7 is provided with a caulking claw 3 for caulking and fixing the tank 4 and the seat plate 2. A plurality of caulking claws 3 are formed on the upper end surface 7 a of the side plate portion 7 along the longitudinal direction thereof, and are respectively provided at positions not corresponding to the tubes 1 inserted into the seat plate 2.

タンク４は、冷媒流路を構成する第１流路構成部１０と、これに隣接した同じく冷媒流路を構成する第２流路構成部１１と、第１流路部９Ａと第２流路部９Ｂを仕切ると共に座板２に接する接触面となる突条部１２と、を備え、第１流路構成部１０、第２流路構成部１１及び突条部１２とにより断面略逆Ｗ形状とされている。   The tank 4 includes a first flow path component 10 that forms a refrigerant flow path, a second flow path structure 11 that also forms an adjacent refrigerant flow path, and a first flow path section 9A and a second flow path. And a ridge portion 12 that partitions the portion 9B and serves as a contact surface in contact with the seat plate 2, and the first flow path component 10, the second flow channel component 11, and the ridge 12 have a substantially inverted W cross section. It is said that.

第１流路構成部１０と第２流路構成部１１は、何れも断面逆Ｕ字状として形成されている。突条部１２は、第１流路構成部１０と第２流路構成部１１を分離し、前記座板２の底板部６に密着するようになっている。この突条部１２には、チューブ１の挿入部に対応する位置に、その長手方向に沿って波形となる溝部１３が形成されており、挿入したチューブ１がタンク４に当接しないようになっている。また、第１流路構成部１０と第２流路構成部１１は、この溝部１３で連通している。   The first flow path component 10 and the second flow path component 11 are both formed in an inverted U-shaped cross section. The protrusion 12 separates the first flow path component 10 and the second flow path component 11 and comes into close contact with the bottom plate 6 of the seat plate 2. A groove 13 having a waveform along the longitudinal direction is formed in the protrusion 12 at a position corresponding to the insertion portion of the tube 1, so that the inserted tube 1 does not contact the tank 4. ing. The first flow path component 10 and the second flow path component 11 communicate with each other through the groove 13.

次に、ヘッダタンク５の製造方法について説明する。ヘッダタンク５を製造するには、先ず、座板２とタンク４をそれぞれ所定形状に形成した後、座板２に形成したかしめ爪３をタンク４に加締めることで製造される。座板２は、アルミニウムなどの平板を所定形状に打ち抜いた後、断面Ｕ字状に折り曲げて側板部７を立ち上げることにより形成する。   Next, a method for manufacturing the header tank 5 will be described. In order to manufacture the header tank 5, first, the seat plate 2 and the tank 4 are each formed in a predetermined shape, and then the caulking claw 3 formed on the seat plate 2 is crimped to the tank 4. The seat plate 2 is formed by punching a flat plate of aluminum or the like into a predetermined shape, then bending the plate into a U-shaped cross section and raising the side plate portion 7.

タンク４は、座板２と同様、アルミニウムなどの平板を所定形状に抜いた後、その打ち抜いたブランク材の中央に前記した２つの流路部９Ａ、９Ｂを分離すると共に座板２との接触面を持つ断面コ字状の突条部１２を形成する（突条部形成工程）。このときの突条部１２の高さＨを、図２（Ａ）で示すように、最終製品時の高さＨａとし、また、突条部１２の側壁部１２Ａの傾斜角度θを、図２（Ａ）で示すように、最終製品時の傾斜角度θａ（ほぼ９０度）とした場合には、溝部形成工程で櫛歯状のパンチを突条部１２に押し込んで溝部１３を形成したときに、パンチで押された分の余肉１４が突条部１２の幅方向に飛び出てしまう。   Similarly to the seat plate 2, the tank 4, after a flat plate made of aluminum or the like is pulled out into a predetermined shape, separates the two flow path portions 9 </ b> A and 9 </ b> B at the center of the blank material that is punched out and contacts the seat plate 2. A protrusion 12 having a U-shaped cross section is formed (protrusion forming step). As shown in FIG. 2 (A), the height H of the ridge 12 at this time is the height Ha in the final product, and the inclination angle θ of the side wall 12A of the ridge 12 is shown in FIG. As shown in (A), when the inclination angle θa (almost 90 degrees) at the time of the final product is set, when the groove portion 13 is formed by pushing a comb-like punch into the protruding portion 12 in the groove portion forming step. Further, the extra portion 14 pushed by the punch jumps out in the width direction of the protrusion 12.

この余肉１４の飛び出しを抑制するために、本発明では、図２（Ｂ）で示すように、突条部１２の高さＨｂを最終製品時の高さＨａよりも低く（溝部１３の深さＨｃの寸法よりは長い）し、また、突条部１２の側壁部１２Ａの傾斜角度θｂを最終製品時の傾斜角度θａよりも大（鈍角）とする。このような関係とした上で、次の溝部形成工程を行う。   In order to suppress the jumping out of the surplus meat 14, in the present invention, as shown in FIG. 2B, the height Hb of the protrusion 12 is lower than the height Ha at the final product (the depth of the groove 13). The inclination angle θb of the side wall portion 12A of the ridge portion 12 is larger (obtuse angle) than the inclination angle θa at the time of the final product. The following groove part formation process is performed after setting it as such a relationship.

溝部形成工程では、図３に示すように、櫛歯状の突起１５を複数有したパンチ１６を、前記突条部１２に押し込んで前記溝部１３を形成する。このとき、突条部１２の高さＨｂを最終製品時の高さＨａよりも低くし、且つ突条部１２の側壁部１２Ａの傾斜角度θｂを最終製品時の傾斜角度θａよりも大としたことで、櫛歯状のパンチ１６を前記突条部１２に押し込んで溝部１３を形成したときに、余肉が幅方向に飛び出すことが無くなる。   In the groove part forming step, as shown in FIG. 3, the punch part 16 having a plurality of comb-like protrusions 15 is pushed into the ridge part 12 to form the groove part 13. At this time, the height Hb of the ridge 12 is made lower than the height Ha at the final product, and the inclination angle θb of the side wall 12A of the ridge 12 is made larger than the inclination angle θa at the final product. Thus, when the comb-shaped punch 16 is pushed into the protrusion 12 and the groove 13 is formed, the surplus wall does not jump out in the width direction.

次に、前記突条部１２の高さＨｂを最終製品時の高さＨａにする成形工程を行う。   Next, a molding step is performed in which the height Hb of the ridge portion 12 is set to the height Ha of the final product.

次に、突条部１２の両側部を湾曲させて第１流路部９Ａと第２流路部９Ｂを形成する（流路部形成工程）。なお、前記突条部１２の高さＨｂを最終製品時の高さＨａにする成形工程を流路部形成工程と同時に行っても良い。   Next, the first flow path portion 9A and the second flow path portion 9B are formed by curving both side portions of the ridge portion 12 (flow channel portion forming step). In addition, you may perform the shaping | molding process which makes height Hb of the said protrusion 12 the height Ha at the time of a final product simultaneously with a flow-path part formation process.

そして、得られたタンク４と座板２を組み合わせた後、かしめ爪３をタンク４に加締めることで、前記タンク４と座板２を固定する。なお、冷媒の流路をターンさせるために仕切板であるデバイドや、ヘッダータンクの両端部を塞ぐ蓋となるパッチを挿入するためのスリットを設ける工程は、タンクと座板を組み合わせる前に行っている。   Then, after combining the obtained tank 4 and the seat plate 2, the tank 4 and the seat plate 2 are fixed by caulking the caulking claw 3 to the tank 4. In addition, the step of providing a divider for dividing the coolant flow path and a slit for inserting a patch that closes both ends of the header tank is performed before combining the tank and the seat plate. Yes.

以上のように、本発明方法によれば、溝部形成工程のときに溝部１３の幅方向に余肉が出ないため、従来行っていた面倒な余肉の潰し加工工程を無くすことができ、その後の後工程を安定して行え、寸法精度の高い熱交換器用ヘッダタンクを提供することができる。   As described above, according to the method of the present invention, there is no surplus in the width direction of the groove 13 at the time of the groove forming process, so that it is possible to eliminate the troublesome crushing process of surplus that has been performed conventionally, The post-process can be stably performed, and a header tank for a heat exchanger with high dimensional accuracy can be provided.

また、本発明方法により製造されたヘッダタンク５では、第１流路部９Ａ及び第２流路部９Ｂに余肉がはみ出すことがないため、流路断面積が狭まることを防止でき、流路部内を流れる冷媒の流路抵抗を低減させることができる。   Further, in the header tank 5 manufactured by the method of the present invention, the surplus wall does not protrude from the first flow path portion 9A and the second flow path portion 9B, so that the cross-sectional area of the flow path can be prevented from being narrowed. The flow path resistance of the refrigerant flowing in the section can be reduced.

以上、本発明を適用した具体的な実施の形態について説明したが、前記実施の形態は本発明の一例であり、前記実施の形態に制限されることはない。   The specific embodiment to which the present invention is applied has been described above, but the embodiment is an example of the present invention and is not limited to the embodiment.

本発明方法により製造される熱交換器用ヘッダタンクの斜視図である。It is a perspective view of the header tank for heat exchangers manufactured by the method of the present invention. 本発明方法により製造される熱交換器用ヘッダタンクのタンク製造における突条部の高さ及び側壁部の傾斜角度の説明図である。It is explanatory drawing of the height of a protrusion part and the inclination-angle of a side wall part in the tank manufacture of the header tank for heat exchangers manufactured by this invention method. 本発明方法により製造される熱交換器用ヘッダタンクのタンク製造における溝部形成工程を示す図である。It is a figure which shows the groove part formation process in the tank manufacture of the header tank for heat exchangers manufactured by this invention method. 熱交換器用ヘッダタンクにおけるタンクの斜視図である。It is a perspective view of the tank in the header tank for heat exchangers. タンク製造工程において突条部に櫛歯状のパンチで溝部を形成したことにより余肉が生じた状態を示す図である。It is a figure which shows the state which the surplus thickness produced by having formed the groove part with the comb-shaped punch in the protrusion part in the tank manufacturing process. 余肉を潰す工程を示す図である。It is a figure which shows the process of crushing surplus meat. 余肉があることで後工程に影響が生じることを示す図である。It is a figure which shows that an influence arises in a post process because there is surplus.

符号の説明Explanation of symbols

１…チューブ
２…座板
３…かしめ爪
４…タンク
５…ヘッダタンク
６…底板部
７…側板部
９Ａ…第１流路部
９Ｂ…第２流路部
１０…第１流路構成部
１１…第２流路構成部
１２…突条部
１２Ａ…側壁部
１３…溝部
１４…余肉
１６…パンチ
Ｈａ…突条部の最終製品高さ
Ｈｂ…突条部の高さ
θａ…最終製品時における側壁部の傾斜角度
θｂ…側壁部の傾斜角度 DESCRIPTION OF SYMBOLS 1 ... Tube 2 ... Seat plate 3 ... Caulking claw 4 ... Tank 5 ... Header tank 6 ... Bottom plate part 7 ... Side plate part 9A ... 1st flow path part 9B ... 2nd flow path part 10 ... 1st flow path structure part 11 ... Second flow path component 12 ... ridge 12 A ... side wall 13 ... groove 14 ... surplus 16 ... punch Ha ... final product height of ridge Hb ... height of ridge θa ... side wall in final product Inclination angle θb: Side wall inclination angle

Claims (1)

チューブ端部（１Ａ）を挿入固定させて複数のチューブ（１）を所定間隔に配列させる座板（２）に、冷媒流路を形成する逆Ｕ字状をなす２つの流路部（９Ａ、９Ｂ）とこれら流路部（９Ａ、９Ｂ）間を連通させ且つ前記各チューブ端部（１Ａ）の挿入部となる溝部（１３）とを備えたタンク（４）を取り付けることにより形成された熱交換器用ヘッダタンク（５）のタンク製造方法において、
平板の中央に、前記２つの流路部（９Ａ、９Ｂ）を分離すると共に前記座板（２）との接触面を持つ断面コ字状の突条部（１２）を前記チューブ（１）の配列方向に形成する突条部形成工程と、この突条部形成工程後に前記突条部（１２）に櫛歯状のパンチ（１６）を押し込んで前記溝部（１３）を形成する溝部形成工程と、この溝部形成工程後に前記突条部（１２）の両側部を湾曲させて前記流路部（９Ａ、９Ｂ）を形成する流路部形成工程とを備え、
前記突条部形成工程では、前記突条部（１２）の高さＨｂを最終製品時の高さＨａよりも低くし、さらに、前記突条部（１２）の側壁部（１２Ａ）の傾斜角度θｂを鈍角とする
ことを特徴とする熱交換器用ヘッダタンクのタンク製造方法。 Two flow path portions (9A, 9A, 9A, 9A, 9A, 9A, and 9B) are formed in an inverted U shape to form a refrigerant flow path on a seat plate (2) in which a tube end (1A) is inserted and fixed to arrange a plurality of tubes (1) at a predetermined interval. 9B) and the flow path portions (9A, 9B) are connected to each other, and the heat formed by attaching a tank (4) provided with a groove portion (13) serving as an insertion portion of each tube end portion (1A). In the tank manufacturing method for the header tank (5) for the exchanger,
In the center of the flat plate, the two flow passage portions (9A, 9B) are separated and a U-shaped cross-section (12) having a contact surface with the seat plate (2) is provided on the tube (1). A protrusion forming step for forming in the arrangement direction, and a groove forming step for forming the groove (13) by pushing a comb-like punch (16) into the protrusion (12) after the protrusion forming step; A flow path portion forming step for forming the flow path portions (9A, 9B) by curving both side portions of the ridge portion (12) after the groove portion forming step,
In the ridge portion forming step, the height Hb of the ridge portion (12) is made lower than the height Ha of the final product, and the inclination angle of the side wall portion (12A) of the ridge portion (12). A tank manufacturing method for a header tank for a heat exchanger , wherein θb is an obtuse angle .
JP2006260651A 2006-09-26 2006-09-26 Manufacturing method of header tank for heat exchanger Expired - Fee Related JP4996188B2 (en)

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KR101534876B1 (en) * 2010-02-11 2015-07-07 주식회사 두원공조 Heat exchanger for a air-conditioner of a vehicle
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