JP3872266B2 - Heat exchanger, method for manufacturing the same, and molding apparatus therefor - Google Patents

Heat exchanger, method for manufacturing the same, and molding apparatus therefor Download PDF

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Publication number
JP3872266B2
JP3872266B2 JP2000271108A JP2000271108A JP3872266B2 JP 3872266 B2 JP3872266 B2 JP 3872266B2 JP 2000271108 A JP2000271108 A JP 2000271108A JP 2000271108 A JP2000271108 A JP 2000271108A JP 3872266 B2 JP3872266 B2 JP 3872266B2
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Prior art keywords
fin
heat exchanger
collar
heat transfer
fin collar
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JP2002079335A (en
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正樹 砂田
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松下冷機株式会社
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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
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F28F1/24—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely
    • F28F1/32—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely the means having portions engaging further tubular elements

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Geometry (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Description

【０００１】
【発明の属する技術分野】
本発明は、空調機や冷凍冷蔵庫等に用いられるフィンチューブ型の熱交換器に関するものである。
【０００２】
【従来の技術】
近年、省エネルギーの観点から熱交換器の高効率化が求められている。
【０００３】
以下図面を参照しながら特開平１１−３２５７９２号公報に示される従来の熱交換器について説明を行う。
【０００４】
図４は従来の熱交換器の斜視図、図５は従来の熱交換器の要部断面図である。
【０００５】
図４、図５において、１は熱交換器、２は伝熱管、、３はフィン、４はフィンカラー、５は空気の流れ方向、６は冷媒である。熱交換器１は内部に冷媒６が流動する伝熱管２と伝熱管２に挿入されその間を空気５が流動する複数枚の矩形状フィン３とより構成され、フィン３には伝熱管２とフィン３との熱伝達を良くするためのフィンカラー４を設けている。
【０００６】
また、図６は従来の熱交換器用フィン成形装置の模式図である。
【０００７】
図６において、２１はフィン金型、２２はフィンシート、２３はドロー工程、２４は表面加工工程、２５はピアス工程、２６はバーリング工程、２７はカーリング工程、２９は列間スリッター、３０は送り、３１はカットオフである。フィンシート２２は、ドロー工程２３でフィンカラー形成の予備段階としてしごかれ、表面加工工程２４で、コルゲート加工やスリット加工を施される。そして、ピアス工程２５ですべての列に穴明け加工が施され、バーリング工程２６で前記穴に縁立てが施され、カーリング工程２７で前記縁立て先端が丸められることで、フィンカラー４が形成される。次に列間スリッター２９で、任意の列数に切断され、カットオフ３１で任意の段数に切断され、フィン３が形成される。なお、フィン金型２１内にこれらの工程が組み込まれており、送り３０において、各列の抜き孔を送り爪により引っかけフィンシート２２を順次送り込んでいく。
【０００８】
【発明が解決しようとする課題】
しかしながら、従来の熱交換器１は上記のように構成されているので、伝熱管２が挿入されないフィン３部分においてもフィンカラー４が存在するため、空気５が流れるときの通風抵抗となり、通過風量を減少させ、熱交換効率が低下するという課題を有していた。
【０００９】
本発明は上記課題に鑑み、空気の通風抵抗を低減させ熱交換効率を向上させる熱交換器を提供するものである。
【００１０】
【課題を解決するための手段】
本発明の熱交換器とその製造方法およびその成形装置は、上記課題を解決するために、内部を冷媒が流動する伝熱管と、前記伝熱管が挿入されるフィンカラーを有するフィンより成り、前記伝熱管が挿入されない任意の前記フィンカラー部についてはフィンカラーの抜き孔の内径を維持し前記フィンカラーを外側に倒しながらつぶしたものである。
【００１１】
また、本発明の熱交換器は上記課題を解決するために、つぶしたフィンカラー部の高さを１mm以下にしたものである。
【００１２】
この発明によれば、空気の通風抵抗を低減させ、風量を確保させることができるので、熱交換効率の良い熱交換器を提供することができる。
【００１３】
【発明の実施の形態】
本発明の請求項１に記載の発明は、内部を冷媒が流動する伝熱管と、前記伝熱管が挿入されるフィンカラーを有するフィンより成り、前記フィンカラーの前記伝熱管が挿入されない部分は、フィンカラーの抜き孔の内径を維持し外側に倒しながらつぶされて、前記伝熱管が挿入される部分よりも高さの低いフィンカラーとしたことを特徴とする熱交換器としたものであるので、容易に伝熱管が挿入されていない部分のフィンカラーをなくすことができ、通風抵抗を低減することができ、且つ、伝熱管後流部の死水域の影響を低減でき、熱交換効率を向上させるという作用を有する。
【００１４】
請求項２に記載の発明は、内部を冷媒が流動する伝熱管と、前記伝熱管が挿入されるフィンカラーを有するフィンより成り、前記伝熱管が挿入されない前記フィンカラー部については前記フィンカラーを外側に倒しながらつぶしたことを特徴とする熱交換器であり、つぶした前記フィンカラー部の高さを１mm以下としたことで、より通風抵抗を低減することができ、且つ、伝熱管後流部の死水域の影響を低減でき、熱交換効率を向上させるという作用を有する。
【００１５】
請求項３に記載の発明は、フィンシートに多数の穴明けをする第１の工程と、前記多数の穴に縁立てを行い多数のフィンカラーを成形する第２の工程と、複数の小ダイセットがそれぞれ独立して稼働することで前記フィンカラーの任意の箇所をフィンカラーの抜き孔の内径を維持し外側に倒しながらつぶして元のフィンカラーよりも高さの低いフィンカラーを成形する第３の工程とを含むフィン成形工程とより成り、高さの低いフィンカラーに伝熱管を挿入せずに元のフィンカラーに伝熱管を挿入して熱交換器を組立たことを特徴とする熱交換器の製造方法であり、フィンカラーの任意の位置をつぶすことができるという作用を有する。
請求項４に記載の発明は、フィンシートに多数の穴明けをする第１の手段と、前記多数の穴に縁立てを行い多数のフィンカラーを成形する第２の手段と、複数の小ダイセットがそれぞれ独立して稼働することで前記フィンカラーの任意の箇所をフィンカラーの抜き孔の内径を維持し外側に倒しながらつぶして元のフィンカラーよりも高さの低いフィンカラーを成形する第３の手段と、前記第３の手段の前記小ダイセットを制御する手段を含む、熱交換器用フィン成形装置であり、フィンカラーの任意の位置をつぶすことができるという作用を有する。
【００１６】
【実施例】
以下、本発明の熱交換器とその製造方法およびその成形装置の実施例について、図面を参照しながら説明する。
【００１７】
（実施例１）
図１は、本発明の実施例１による熱交換器の斜視図である。
【００１８】
図１において、１１は熱交換器、１２は伝熱管、１３はフィン、１４はフィンカラー、１５は空気の流れ方向、１６は冷媒である。熱交換器１１は内部に冷媒１６が流動する伝熱管１２と、伝熱管１２に挿入され、その間を空気１５が流動する複数枚の矩形状フィン１３とより構成され、フィン１３には伝熱管１２とフィン１３との熱伝達を良くするためのフィンカラー１４を設けている。ここで、伝熱管１２の挿入がない部分についてはフィンカラー１４を成形後、抜き孔１７を囲みながら、外側に倒れるようにつぶしフィンカラー１８にしている。
【００１９】
以上のように構成された本発明の実施例１の熱交換器１１は熱交換機能上不必要な伝熱管１２の挿入のない部分のフィンカラー１４成形を容易な方法で除去できるので、通風抵抗を低減させることができ、且つ、伝熱管後流部の死水域の影響を低減でき、風量の確保と熱伝達率の向上により、安価に熱交換効率を向上させることができる。
【００２０】
（実施例２）
図２は、本発明の実施例２による、つぶしフィンカラー高さと熱交換器能力を示した特性図である。
【００２１】
図２において、熱交換器は、２列６段でフィンピッチ４．２mm、フィンカラーつぶし箇所４カ所の仕様である。つぶしフィンカラー高さが低くなれば熱交換器能力が向上し、つぶした前記フィンカラー部の高さを１mm以下としたことで、より通風抵抗を低減することができ、且つ、伝熱管後流部の死水域の影響を低減でき、熱交換効率を大幅に向上させることができる。
【００２２】
（実施例３）
図３は、本発明の実施例２による、熱交換器の製造方法およびその成形装置を示した模式図である。
【００２３】
図３において、２８はフィンカラーつぶし工程である。
【００２４】
フィンシート２２は、ドロー工程２３でフィンカラー形成の予備段階としてしごかれ、表面加工工程２４で、コルゲート加工やスリット加工を施される。そして、ピアス工程２５ですべての列に穴明け加工が施され、バーリング工程２６で前記穴に縁立てが施され、カーリング工程２７で前記縁立て先端が丸められることで、フィンカラー１４が形成される。次に、カラーつぶし工程２８でフィンカラー１４の抜き孔１７の内径を維持し、外側に倒しながらつぶして、フィンカラー１８を形成する。カラーつぶし工程２８では、複数の小ダイセットがそれぞれ独立して稼働し、任意の位置でフィンカラー１４をつぶすことができるように、前記小ダイセットを制御する制御手段が設けられている。次に列間スリッター２９で、任意の列数に切断され、カットオフ３１で任意の段数に切断され、フィン１３が形成される。なお、フィン金型２１内にこれらの工程が組み込まれており、送り３０において、各列の抜き孔１７を送り爪により引っかけフィンシート２２を順次送り込んでいく。したがって、順送型の熱交換器用フィン成形装置で容易にフィンカラーの任意の位置をつぶすことができる。
【００２５】
【発明の効果】
以上説明したように請求項１に記載の発明は、内部を冷媒が流動する伝熱管と、前記伝熱管が挿入されるフィンカラーを有するフィンより成り、前記フィンカラーの前記伝熱管が挿入されない部分は、フィンカラーの抜き孔の内径を維持し外側に倒しながらつぶされて、前記伝熱管が挿入される部分よりも高さの低いフィンカラーとしたことを特徴とする熱交換器としたものであるので、容易に伝熱管が挿入されていない部分のフィンカラーをなくすことができ、通風抵抗を低減することができ、且つ、伝熱管後流部の死水域の影響を低減でき、熱交換効率を向上させることができる。
【００２６】
また、請求項２に記載の発明は、内部を冷媒が流動する伝熱管と、前記伝熱管が挿入されるフィンカラーを有するフィンより成り、前記伝熱管が挿入されない前記フィンカラー部については前記フィンカラーを外側に倒しながらつぶしたことを特徴とする熱交換器であり、つぶした前記フィンカラー部の高さを１mm以下としたことで、より通風抵抗を低減することができ、且つ、伝熱管後流部の死水域の影響を低減でき、熱交換効率を向上させることができる。
【００２７】
また、請求項３に記載の発明は、フィンシートに多数の穴明けをする第１の工程と、前記多数の穴に縁立てを行い多数のフィンカラーを成形する第２の工程と、複数の小ダイセットがそれぞれ独立して稼働することで前記フィンカラーの任意の箇所をフィンカラーの抜き孔の内径を維持し外側に倒しながらつぶして元のフィンカラーよりも高さの低いフィンカラーを成形する第３の工程とを含むフィン成形工程とより成り、高さの低いフィンカラーに伝熱管を挿入せずに元のフィンカラーに伝熱管を挿入して熱交換器を組立たことを特徴とする熱交換器の製造方法であり、フィンカラーの任意の位置をつぶすことができる。
また、請求項４に記載の発明は、フィンシートに多数の穴明けをする第１の手段と、前記多数の穴に縁立てを行い多数のフィンカラーを成形する第２の手段と、複数の小ダイセットがそれぞれ独立して稼働することで前記フィンカラーの任意の箇所をフィンカラーの抜き孔の内径を維持し外側に倒しながらつぶして元のフィンカラーよりも高さの低いフィンカラーを成形する第３の手段と、前記第３の手段の前記小ダイセットを制御する手段を含む、熱交換器用フィン成形装置であり、フィンカラーの任意の位置をつぶすことができる。
【図面の簡単な説明】
【図１】本発明による熱交換器の実施例１の斜視図
【図２】本発明による熱交換器の実施例２の特性図
【図３】本発明による熱交換器用フィン成形装置の実施例３の模式図
【図４】従来の熱交換器の斜視図
【図５】従来の熱交換器の要部斜視図
【図６】従来の熱交換器用フィン成形装置の模式図
【符号の説明】
１１ 熱交換器
１２ 伝熱管
１３ フィン
１４，１８ フィンカラー
２１ フィン金型
２２ フィンシート
２３ ドロー工程
２４ 表面加工工程
２５ ピアス工程
２６ バーリング工程
２７ カーリング工程
２８ カラーつぶし工程[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a fin tube type heat exchanger used in an air conditioner, a refrigerator-freezer, or the like.
[0002]
[Prior art]
In recent years, high efficiency of heat exchangers has been demanded from the viewpoint of energy saving.
[0003]
A conventional heat exchanger disclosed in Japanese Patent Laid-Open No. 11-325792 will be described below with reference to the drawings.
[0004]
FIG. 4 is a perspective view of a conventional heat exchanger, and FIG. 5 is a cross-sectional view of a main part of the conventional heat exchanger.
[0005]
4 and 5, 1 is a heat exchanger, 2 is a heat transfer tube, 3 is a fin, 4 is a fin collar, 5 is a flow direction of air, and 6 is a refrigerant. The heat exchanger 1 is composed of a heat transfer tube 2 through which a refrigerant 6 flows and a plurality of rectangular fins 3 through which air 5 flows between the heat transfer tubes 2. A fin collar 4 is provided to improve heat transfer with the heat sink 3.
[0006]
FIG. 6 is a schematic view of a conventional fin forming apparatus for a heat exchanger.
[0007]
In FIG. 6, 21 is a fin mold, 22 is a fin sheet, 23 is a drawing process, 24 is a surface processing process, 25 is a piercing process, 26 is a burring process, 27 is a curling process, 29 is an inter-row slitter, and 30 is a feed. , 31 is a cut-off. Fin sheet 22 is squeezed as a preliminary stage of the fin collar forming a draw step 2 3, the surface treatment process 24 is subjected to corrugating or slitting. In the piercing step 25, all rows are drilled, and in the burring step 26, the holes are edged, and in the curling step 27, the edge edge is rounded to form the fin collar 4. The Next, it is cut into an arbitrary number of rows by an inter-row slitter 29 and cut into an arbitrary number of steps at a cut-off 31 to form the fins 3. These steps are incorporated in the fin mold 21, and in the feed 30, the holes in each row are hooked by the feed claws and the fin sheet 22 is sequentially fed.
[0008]
[Problems to be solved by the invention]
However, since the conventional heat exchanger 1 is configured as described above, the fin collar 4 also exists in the fin 3 portion where the heat transfer tube 2 is not inserted. There is a problem that the heat exchange efficiency decreases.
[0009]
This invention provides the heat exchanger which reduces the ventilation resistance of air and improves heat exchange efficiency in view of the said subject.
[0010]
[Means for Solving the Problems]
In order to solve the above problems, a heat exchanger, a manufacturing method thereof, and a molding apparatus thereof according to the present invention include a heat transfer tube in which a refrigerant flows and a fin having a fin collar into which the heat transfer tube is inserted, An arbitrary fin collar portion into which no heat transfer tube is inserted is obtained by smashing the fin collar while tilting the fin collar outward while maintaining the inner diameter of the hole in the fin collar.
[0011]
Further, in order to solve the above problems, the heat exchanger according to the present invention has a crushed fin collar portion having a height of 1 mm or less.
[0012]
According to this invention, since the ventilation resistance of air can be reduced and the air volume can be ensured, a heat exchanger with good heat exchange efficiency can be provided.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
The invention according to claim 1 of the present invention comprises a heat transfer tube through which a refrigerant flows and a fin having a fin collar into which the heat transfer tube is inserted, and the portion of the fin collar where the heat transfer tube is not inserted is it is grain while tilted outward to maintain the inner diameter of the vent hole of the fin collar, since it is obtained by a heat exchanger, wherein the heat transfer tubes has a low profile fin collar than the part to be inserted The fin collar in the part where the heat transfer tube is not inserted can be easily eliminated, the ventilation resistance can be reduced, and the influence of the dead water area at the downstream of the heat transfer tube can be reduced, improving the heat exchange efficiency. Has the effect of causing
[0014]
The invention according to claim 2 includes a fin having a heat transfer tube in which a refrigerant flows and a fin collar into which the heat transfer tube is inserted, and the fin collar is not inserted into the fin collar portion. The heat exchanger is characterized by being crushed while being laid down outwards. By making the height of the crushed fin collar part 1 mm or less, the ventilation resistance can be further reduced, and the wake of the heat transfer tube The effect of the dead water area can be reduced, and the heat exchange efficiency is improved.
[0015]
According to a third aspect of the present invention, there are provided a first step of making a large number of holes in a fin sheet, a second step of forming a large number of fin collars by edging the numerous holes, and a plurality of small dies. set to shape the grain to the original fin low fin collars height than color while defeating any point of the fin collar outwardly to maintain the inner diameter of the vent hole of the fin collars by running independently And a fin forming step including a third step , wherein the heat exchanger is assembled by inserting the heat transfer tube into the original fin collar without inserting the heat transfer tube into the fin collar having a low height. This is a method for manufacturing a heat exchanger, and has an effect that an arbitrary position of the fin collar can be crushed.
According to a fourth aspect of the present invention, there are provided a first means for making a large number of holes in a fin sheet, a second means for forming a large number of fin collars by edging the numerous holes, and a plurality of small dies. The set is operated independently to form a fin collar having a lower height than the original fin collar by crushing any part of the fin collar while maintaining the inside diameter of the fin collar punching hole and falling outward. 3 is a fin forming apparatus for a heat exchanger including means for controlling the small die set of the third means, and has an effect that an arbitrary position of the fin collar can be crushed.
[0016]
【Example】
Embodiments of a heat exchanger, a manufacturing method thereof, and a molding apparatus thereof according to the present invention will be described below with reference to the drawings.
[0017]
Example 1
FIG. 1 is a perspective view of a heat exchanger according to Embodiment 1 of the present invention.
[0018]
In FIG. 1, 11 is a heat exchanger, 12 is a heat transfer tube, 13 is a fin, 14 is a fin collar, 15 is a flow direction of air, and 16 is a refrigerant. The heat exchanger 11 is composed of a heat transfer tube 12 in which a refrigerant 16 flows and a plurality of rectangular fins 13 inserted into the heat transfer tube 12 and air 15 flowing between them. A fin collar 14 is provided for improving heat transfer between the fin 13 and the fin 13. Here, for the portion where the heat transfer tube 12 is not inserted, the fin collar 14 is formed, and then the collapsed fin collar 18 is formed so as to fall outside while surrounding the punch hole 17.
[0019]
Since the heat exchanger 11 according to the first embodiment of the present invention configured as described above can remove the fin collar 14 from a portion where the heat transfer tube 12 unnecessary for the heat exchange function is not inserted by an easy method, the ventilation resistance In addition, it is possible to reduce the influence of the dead water area in the downstream portion of the heat transfer tube, and it is possible to improve the heat exchange efficiency at low cost by securing the air volume and improving the heat transfer rate.
[0020]
(Example 2)
FIG. 2 is a characteristic diagram showing crushing fin collar height and heat exchanger capability according to Example 2 of the present invention.
[0021]
In FIG. 2, the heat exchanger has specifications of two rows and six stages, a fin pitch of 4.2 mm, and four fin collar crushing locations. If the height of the crushing fin collar is lowered, the heat exchanger performance is improved, and by reducing the height of the crushing fin collar portion to 1 mm or less, the ventilation resistance can be further reduced, and the wake of the heat transfer tube The influence of the dead water area can be reduced, and the heat exchange efficiency can be greatly improved.
[0022]
(Example 3)
FIG. 3 is a schematic view showing a heat exchanger manufacturing method and a molding apparatus thereof according to Embodiment 2 of the present invention.
[0023]
In FIG. 3, 28 is a fin color crushing step.
[0024]
The fin sheet 22 is squeezed as a preliminary stage of fin collar formation in a draw process 23 and corrugated or slit processed in a surface processing process 24. In the piercing step 25, all rows are drilled, and in the burring step 26, the holes are edged, and in the curling step 27, the edge of the edge is rounded to form the fin collar 14. The Next, in the color crushing step 28, the inner diameter of the hole 17 of the fin collar 14 is maintained, and the fin collar 18 is formed by crushing while falling down. In the color crushing step 28, a plurality of small die sets operate independently of each other, and control means for controlling the small die sets is provided so that the fin collar 14 can be crushed at an arbitrary position. Next, it is cut into an arbitrary number of rows by an inter-row slitter 29 and cut into an arbitrary number of steps at a cut-off 31 to form fins 13. These steps are incorporated in the fin mold 21, and in the feed 30, the fin sheets 22 are sequentially fed by hooking the punched holes 17 of each row by the feed claws. Therefore, it is possible to easily crush any position of the fin collar with the progressive-type heat exchanger fin molding apparatus.
[0025]
【The invention's effect】
As described above, the invention according to claim 1 is composed of a heat transfer tube in which a refrigerant flows and a fin having a fin collar into which the heat transfer tube is inserted, and the portion of the fin collar where the heat transfer tube is not inserted. maintains the inner diameter of the vent hole of the fin collars are grain while tilted outward, which has a heat exchanger, wherein the heat transfer tubes has a low profile fin collar than the part to be inserted As a result, the fin collar in the part where the heat transfer tube is not inserted can be easily eliminated, the ventilation resistance can be reduced, and the influence of the dead water area at the downstream of the heat transfer tube can be reduced, and the heat exchange efficiency Can be improved.
[0026]
According to a second aspect of the present invention, there is provided a fin having a heat transfer tube through which a refrigerant flows and a fin collar into which the heat transfer tube is inserted. The heat exchanger is characterized in that it is crushed while tilting the collar outward, and by reducing the height of the crushed fin collar part to 1 mm or less, the ventilation resistance can be further reduced, and the heat transfer tube The influence of the dead water area in the wake can be reduced, and the heat exchange efficiency can be improved.
[0027]
According to a third aspect of the present invention, there is provided a first step of forming a large number of holes in the fin sheet, a second step of forming a plurality of fin collars by edging the large number of holes, and a plurality of steps . said fins any point grain to the original fin low fin collars height than color while tilted outward to maintain the inner diameter of the vent hole of the fin collar of color in the small die set is running independently third more become a fin forming step including the step, characterized in that there was assembled heat exchanger by inserting a heat transfer tube in the original fin collars without inserting the heat transfer tube to a low fin collar height for molding A method for manufacturing a heat exchanger, which can crush any position of the fin collar.
According to a fourth aspect of the present invention, there is provided a first means for making a number of holes in a fin sheet, a second means for forming a number of fin collars by edging the number of holes, and a plurality of means. The small die set operates independently to form a fin collar that is lower than the original fin collar by crushing any part of the fin collar while maintaining the inner diameter of the fin collar's punched hole and pulling it outward. A fin forming apparatus for a heat exchanger that includes a third means for controlling and a means for controlling the small die set of the third means, and can crush any position of the fin collar.
[Brief description of the drawings]
FIG. 1 is a perspective view of a heat exchanger according to a first embodiment of the present invention. FIG. 2 is a characteristic diagram of a heat exchanger according to a second embodiment of the present invention. Fig. 4 is a perspective view of a conventional heat exchanger. Fig. 5 is a perspective view of a main part of a conventional heat exchanger. Fig. 6 is a schematic diagram of a conventional fin forming apparatus for a heat exchanger.
11 Heat Exchanger 12 Heat Transfer Tube 13 Fin 14, 18 Fin Collar 21 Fin Mold 22 Fin Sheet 23 Draw Process 24 Surface Processing Process 25 Piercing Process 26 Burling Process 27 Curling Process 28 Color Crushing Process

Claims (4)

内部を冷媒が流動する伝熱管と、前記伝熱管が挿入されるフィンカラーを有するフィンより成り、前記フィンカラーの前記伝熱管が挿入されない部分は、フィンカラーの抜き孔の内径を維持し外側に倒しながらつぶされて、前記伝熱管が挿入される部分よりも高さの低いフィンカラーとしたことを特徴とする熱交換器。The heat transfer tube in which the refrigerant flows inside and the fin having the fin collar into which the heat transfer tube is inserted. The portion of the fin collar where the heat transfer tube is not inserted is maintained outside the fin collar with the inner diameter of the hole. Killed while being grain, heat exchanger, characterized in that the heat transfer tube has a lower height fin collars than the part to be inserted. つぶしたフィンカラー部の高さを１mm以下にしたことを特徴とする請求項１記載の熱交換器。  2. The heat exchanger according to claim 1, wherein the height of the crushed fin collar portion is 1 mm or less. フィンシートに多数の穴明けをする第１の工程と、前記多数の穴に縁立てを行い多数のフィンカラーを成形する第２の工程と、複数の小ダイセットがそれぞれ独立して稼働することで前記フィンカラーの任意の箇所をフィンカラーの抜き孔の内径を維持し外側に倒しながらつぶして元のフィンカラーよりも高さの低いフィンカラーを成形する第３の工程とを含む、フィン成形工程とより成り、高さの低いフィンカラーに伝熱管を挿入せず、元のフィンカラーに伝熱管を挿入して熱交換器を組立てたことを特徴とする熱交換器の製造方法。A first step of making a large number of holes in the fin sheet, a second step of forming a large number of fin collars by edging the numerous holes, and a plurality of small die sets are operated independently. in and a third step of forming the grain and low fin collar height than the original fin collar while defeating any point of the fin collar outwardly to maintain the inner diameter of the vent hole of the fin collar, fin A method for manufacturing a heat exchanger, comprising a molding step, wherein a heat exchanger is assembled by inserting a heat transfer tube into an original fin collar without inserting the heat transfer tube into a low fin collar . フィンシートに多数の穴明けをする第１の手段と、前記多数の穴に縁立てを行い多数のフィンカラーを成形する第２の手段と、複数の小ダイセットがそれぞれ独立して稼働することで前記フィンカラーの任意の箇所をフィンカラーの抜き孔の内径を維持し外側に倒しながらつぶして元のフィンカラーよりも高さの低いフィンカラーを成形する第３の手段と、前記第３の手段の前記小ダイセットを制御する手段を含む、熱交換器用フィン成形装置。A first means for making a large number of holes in the fin sheet, a second means for forming a large number of fin collars by edging the large number of holes, and a plurality of small die sets are operated independently. third means for forming a low fin collars height than the original fin collars with grain while defeating any point of the fin collar outwardly to maintain the inner diameter of the vent hole of the fin collar in the third A heat exchanger fin forming apparatus including means for controlling the small die set of the means.
JP2000271108A 2000-09-07 2000-09-07 Heat exchanger, method for manufacturing the same, and molding apparatus therefor Expired - Fee Related JP3872266B2 (en)

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JP3930408B2 (en) * 2002-09-25 2007-06-13 松下冷機株式会社 Manufacturing method of heat exchanger
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