JP2003275836A

JP2003275836A - Method and device for manufacturing heat exchanger

Info

Publication number: JP2003275836A
Application number: JP2002075385A
Authority: JP
Inventors: Hidekazu Takahashi; 英一高橋; Toru Shibata; 徹柴田; Takeshi Kubota; 剛久保田; Toshiyuki Amimoto; 俊之網本
Original assignee: Hitachi Ltd
Current assignee: Hitachi Ltd
Priority date: 2002-03-19
Filing date: 2002-03-19
Publication date: 2003-09-30
Anticipated expiration: 2022-03-19
Also published as: JP3984843B2

Abstract

<P>PROBLEM TO BE SOLVED: To provide a heat exchanger manufacturing method of high flexibility and high-speed production of a heat exchanger comprising a unicursal refrigerant pipe of high airtight reliability by reducing the number of joints while ensuring the conventional heat exchanging performance. <P>SOLUTION: The heat exchanger manufacturing method of a heat exchanger having a structure of continuously joining fins to one long refrigerant pipe comprises a fin forming step, a fin arranging step, a refrigerant pipe inserting step, a refrigerant pipe expanding step, a fin separating step, a refrigerant pipe bending step, and a drying and degreasing step. In the fin arranging step, the fins are arranged in a predetermined space by using an interdigital tool of a structure of stacked plates, the tool is divided into a predetermined length. In the fin separating step, a blade of a cutting means is reliably separated in the direction opposite to the direction of the inserted refrigerant pipe when separating the fins by passing the blade of the cutting means through a through hole, and further held and fixed by a bending die of the following refrigerant pipe bending step during the cutting, and the refrigerant pipe is bent without changing the hold. <P>COPYRIGHT: (C)2003,JPO

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【発明の属する技術分野】本発明の熱交換器構造は、冷
媒管とフィンとを組合せた構造のクロスフィン型熱交換
器の製造方法並びに製造装置に係わり、特に冷媒管同士
の接合を極力抑えた一筆書き構造の冷媒系となる熱交換
器の製造方法並びに製造装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The heat exchanger structure of the present invention relates to a method and an apparatus for manufacturing a cross fin type heat exchanger having a structure in which refrigerant pipes and fins are combined, and particularly, it is possible to suppress joining of refrigerant pipes as much as possible. The present invention also relates to a manufacturing method and a manufacturing apparatus of a heat exchanger that is a refrigerant system having a one-stroke writing structure.

【０００２】[0002]

【従来の技術】冷媒管とフィンとを組合せた構造の従来
のクロスフィン型熱交換器は、社団法人日本塑性加工学
会編「チューブフォーミング」（初版、１９９２年、コ
ロナ社）第６３頁に記載のように、一定間隔で平行に配
列された複数の冷媒管と、その冷媒管に垂直な方向に一
定間隔で並べられた複数枚のフィンで構成されていた。
そのため、熱交換器の従来の製造方法並びに製造装置と
しても、同文献に記載のように、複数個の通孔が設けら
れたフィンを所定間隔で整列させるフィン整列工程と、
その各通孔中に冷媒管を通す冷媒管挿入工程と、通孔中
の各々の冷媒管を拡管してそれぞれの場所のフィンと接
触させる冷媒管拡管工程とで構成されるものであった。
冷媒管同士は、別に設けられた冷媒管接合工程にて、１
８０度に曲げ加工された個別部品を用いてろう付け等で
接合されており、直管と１８０度曲げ管とを交互に接合
して熱交換器を構成するものであった。フィンは必要に
応じてスリットを設けて熱交換性能を増大させる方策も
採られていた。2. Description of the Related Art A conventional cross fin type heat exchanger having a structure in which a refrigerant pipe and a fin are combined is described in "Tube Forming" (First Edition, 1992, Corona Publishing Co., Ltd.), p. 63, edited by the Japan Society for Plasticity Processing. As described above, the plurality of refrigerant tubes are arranged in parallel at regular intervals, and the plurality of fins are arranged at regular intervals in the direction perpendicular to the refrigerant tubes.
Therefore, even as a conventional manufacturing method and manufacturing apparatus for a heat exchanger, as described in the same document, a fin alignment step of aligning fins provided with a plurality of through holes at a predetermined interval,
The refrigerant tube insertion step of passing the refrigerant tube through each of the through holes and the refrigerant tube expanding step of expanding each of the refrigerant tubes in the through hole and bringing them into contact with the fins at their respective locations.
Refrigerant tubes are joined together in a separate refrigerant tube joining process.
The individual parts bent at 80 degrees are joined by brazing or the like, and the straight tubes and the 180 degree bent tubes are alternately joined to form a heat exchanger. The fins were also provided with slits as needed to increase the heat exchange performance.

【０００３】また、直管と１８０度曲げ管とを交互に接
合しない構造の熱交換器として、特開平９―９６４９６
号公報に記載のように、冷媒管を一筆書きで蛇行状に加
工する冷媒管曲げ工程を経た後に、フィンの切り込み線
内に押し込む工程にて冷媒管とフィンを接合させるもの
があった。A heat exchanger having a structure in which straight pipes and 180 ° bent pipes are not alternately joined is disclosed in Japanese Patent Laid-Open No. 9-96496.
As described in Japanese Patent Laid-Open Publication No. JP-A-2003-13869, there is one in which a refrigerant pipe and a fin are joined in a process of pushing the refrigerant pipe into a serpentine shape with a single stroke and then pushing it into the cut line of the fin.

【０００４】[0004]

【発明が解決しようとする課題】上記従来技術の熱交換
器製造方法の内、複数個の通孔が設けられたフィンを所
定間隔で整列させるフィン整列工程と、その各通孔中に
冷媒管を通す冷媒管挿入工程と、通孔中の各々の冷媒管
を拡管してそれぞれの場所のフィンと接触させる冷媒管
拡管工程とで構成されるものでは、冷媒管を一筆書き状
に加工した部品には対応できず、かつ１個取り生産のた
めタクトが長いものとなっていた。また、製品設計の自
由度が少なく、多種多様な製品設計をしても生産のフレ
キシビリティが少ないという問題もあった。In the heat exchanger manufacturing method of the prior art described above, a fin aligning step of aligning fins having a plurality of through holes at predetermined intervals and a refrigerant pipe in each of the through holes. In the one consisting of the refrigerant pipe inserting step of passing through and the refrigerant tube expanding step of expanding each refrigerant tube in the through hole and bringing it into contact with the fins at each place, the parts obtained by processing the refrigerant tube into a single stroke However, the tact was long due to the production of one piece. In addition, there is a problem that the degree of freedom in product design is low and the flexibility of production is low even when a wide variety of product designs are performed.

【０００５】また、冷媒管の接合箇所を極力少なくし
た、冷媒管を一筆書きで蛇行状に加工した後に、フィン
に切り込み線内に押し込む構造の熱交換器の製造方法
は、冷媒管とフィンの間に十分な緊縛力が得られず、熱
交換性能が十分に確保できないという性能上の問題、及
び製品設計の自由度が少なく、多種多様な製品設計をし
ても生産のフレキシビリティが少ないという問題もあっ
た。Further, a method of manufacturing a heat exchanger having a structure in which the joint portions of the refrigerant pipes are minimized and the refrigerant pipes are processed into a serpentine shape with a single stroke and then pushed into the cut lines into the fins is There is a problem in performance that a sufficient binding force cannot be obtained between them and heat exchange performance cannot be secured sufficiently, and there is little freedom in product design, and there is little flexibility in production even if various product designs are made. There was also a problem.

【０００６】本発明の目的は、従来の熱交換性能を確保
しつつ、継目を極力少なくして気密信頼性を高めた一筆
書き状の冷媒管からなる熱交換器のフレキシビリティの
高い高速生産可能な製造方法を提供することにある。An object of the present invention is to enable high-speed high-flexibility production of a heat exchanger consisting of a one-stroke-shaped refrigerant tube, in which the number of joints is minimized and the airtightness is improved while ensuring the conventional heat exchange performance. To provide a simple manufacturing method.

【０００７】[0007]

【課題を解決するための手段】上記目的を達成するため
に、冷媒管とフィンからなるクロスフィン型熱交換器の
製造方法において、複数の製品分だけ結合された状態で
成形されるフィンのフィン成形工程と、その複数の製品
分だけ結合された状態のフィンを所定間隔で平行に並べ
るフィン整列工程と、その複数の製品分だけ結合された
状態のフィンに所定間隔であけられた通孔中に製品分の
本数だけ冷媒管を通す冷媒管挿入工程と、フィンに挿入
された冷媒管を全数拡管してフィンと冷媒管を密着させ
る冷媒管拡管工程と、複数の製品分だけ結合された状態
のフィンを個別の製品に切離すフィン分断工程と、個別
に切離された製品の冷媒管を所定の形状に成形する冷媒
管曲げ工程と、冷媒管の内部の乾燥脱脂工程とで構成し
たものである。In order to achieve the above object, in a method for manufacturing a cross fin type heat exchanger comprising a refrigerant pipe and fins, the fins of the fins molded in a state in which a plurality of products are joined together. Forming step, fin alignment step of arranging fins in a state of being joined by a plurality of products in parallel at a predetermined interval, and through holes made at predetermined intervals in fins in a state of being joined by a plurality of products The refrigerant pipe insertion step of passing the refrigerant pipes as many as the number of products into the product, the refrigerant pipe expansion step of expanding all the refrigerant pipes inserted in the fins to bring the fins into contact with the refrigerant pipes, and the state in which only a plurality of products are combined A fin cutting process that separates the fins into individual products, a refrigerant pipe bending process that forms the refrigerant pipes of the individually separated products into a predetermined shape, and a dry degreasing process inside the refrigerant pipes Is.

【０００８】フィン整列工程においては、フィンを所定
間隔で平行に並べる際に、フィンを整列させる間隔と同
等の間隔の溝を設けた櫛歯状のフィン整列治具を用いて
フィンを整列させたものである。櫛歯状のフィン整列治
具は、所定の２種類の厚さと高さの板材を交互に組合せ
ることで構成したものである。また、櫛歯状の治具を用
いてフィンを所定間隔に整列させた後に、その治具を所
定の長さに分割して、整列したフィンを冷媒管に密着さ
せる箇所と、フィンの接触していない所定の長さの冷媒
管剥き出し箇所を、所定の箇所だけ設けるようにフィン
整列治具分断工程を設けたものである。In the fin arranging step, when the fins are arranged in parallel at a predetermined interval, the fins are arranged by using a comb-teeth-shaped fin arranging jig provided with grooves having intervals equal to the intervals for arranging the fins. It is a thing. The comb-teeth-shaped fin alignment jig is configured by alternately combining plate materials having predetermined two types of thicknesses and heights. Also, after the fins are aligned at a predetermined interval using a comb-shaped jig, the jig is divided into predetermined lengths and the fins are brought into contact with the place where the aligned fins are closely attached to the refrigerant pipe. The fin aligning jig cutting step is provided so that only a predetermined portion of the refrigerant pipe exposed portion having a predetermined length is provided.

【０００９】フィン分断工程においては、複数の製品分
だけ結合された状態のフィンを成形する際に、フィン面
内に所定長さのスリットと所定数の通孔を設け、その通
孔に切断手段の刃を通して分断する方式としたものであ
る。その通孔に切断手段の刃を通して分断する際に切断
手段の刃を挿入された冷媒管と逆方向に向けることで確
実に分断できるようにしたものである。また、そのフィ
ン分断工程では、分断された個別の製品が有する長尺の
冷媒管が１本のみとすることで、一筆書き状の冷媒系を
構築できるようにしたものである。さらに、高効率な生
産を可能にするために、フィン分断工程でフィンを分断
する直前に、次工程である冷媒管曲げ工程の曲げ型若し
くは冷媒管把持部材が、任意に設けられた製品の冷媒管
剥き出し箇所の位置に応じてその冷媒管剥き出し箇所を
把持固定し、フィン分断工程終了直後にそのまま掴み替
え無しで冷媒管の曲げ加工を行なうようにしたものであ
る。その際に複数の曲げ箇所を同時に曲げ加工するよう
にして高速成形を可能にしたものである。In the fin cutting step, when forming a fin in a state in which a plurality of products are combined, a slit of a predetermined length and a predetermined number of through holes are provided in the fin surface, and the cutting means is provided in the through hole. It is a method of cutting through the blade of. When the blade of the cutting means is cut through the through hole, the blade of the cutting means is directed in the direction opposite to the inserted refrigerant pipe so that the cutting can be reliably cut. Further, in the fin cutting step, a single-stroked refrigerant system can be constructed by using only one long refrigerant tube in each of the divided individual products. Further, in order to enable highly efficient production, immediately before the fins are divided in the fin dividing step, the bending die or the refrigerant pipe gripping member in the refrigerant pipe bending step, which is the next step, is the refrigerant of the product provided arbitrarily. The refrigerant pipe exposed portion is gripped and fixed according to the position of the pipe exposed portion, and the refrigerant pipe is bent immediately after the fin cutting step without re-gripping. At that time, a plurality of bending points are simultaneously bent to enable high-speed molding.

【００１０】冷媒管曲げ工程においては、曲げ加工した
直後に別の固定部材を成形された冷媒管の複数の箇所に
同時に挿入し、その挿入方向に押し込むだけでその固定
部材の一部を変形させて形状保持することで曲げ加工時
に発生するスプリングバックを防ぐようにしたものであ
る。In the step of bending the refrigerant pipe, immediately after bending, another fixing member is simultaneously inserted into a plurality of places of the formed refrigerant pipe, and a part of the fixing member is deformed only by pushing in the inserting direction. By holding the shape, the springback that occurs during bending is prevented.

【００１１】[0011]

【発明の実施の形態】以下、本発明の実施例を、図１〜
図１５を用いて説明する。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to FIGS.
This will be described with reference to FIG.

【００１２】図１〜図７は、本発明の一実施例である、
熱交換器の全製造工程を示す説明図である。図１は複数
の製品分だけ結合された状態で成形されるフィンのフィ
ン成形工程、図２はその複数の製品分だけ結合された状
態のフィンを所定間隔で平行に並べるフィン整列工程、
図３はその複数の製品分だけ結合された状態のフィンに
所定間隔であけられた通孔中に製品分の本数だけ冷媒管
を通す冷媒管挿入工程、図４は冷媒管挿入後にフィン装
着部とフィン未装着部とに分けるフィン装着部分割工
程、図５はフィンに挿入された冷媒管を全数拡管してフ
ィンと冷媒管を密着させる冷媒管拡管工程、図６は複数
の製品分だけ結合された状態のフィンを個別の製品に切
離すフィン分断工程、図７は個別に切離された製品の冷
媒管を所定の形状に成形する冷媒管曲げ工程を示す。1 to 7 show an embodiment of the present invention,
It is explanatory drawing which shows the whole manufacturing process of a heat exchanger. FIG. 1 is a fin forming process of fins formed by combining a plurality of products, and FIG. 2 is a fin aligning process of arranging fins formed by connecting a plurality of products in parallel at predetermined intervals.
FIG. 3 is a refrigerant pipe insertion step in which as many refrigerant pipes as the product pipes are inserted into the through holes provided at predetermined intervals in the fins in a state in which the plurality of product pipes are joined. And a fin non-attached portion, a fin attaching portion dividing step, FIG. 5 shows a refrigerant tube expanding step of expanding all the refrigerant tubes inserted in the fins to bring the fins into contact with the refrigerant tubes, and FIG. 6 combines only a plurality of products. FIG. 7 shows a fin cutting step of cutting the fins in the separated state into individual products, and FIG. 7 shows a refrigerant tube bending step of forming the refrigerant tubes of the individually cut products into a predetermined shape.

【００１３】図１のフィン成形工程において、製品のフ
ィン幅に予め整えられた薄板ブランクＦｂは、プレス機
に連続的に供給され冷媒管を通すための通孔Ｆｈ、フィ
ン分断用のスリットＦｓ、及びフィン分断用の刃を通す
2個通孔Ｆｃを順送りで成形するものである。この時必
要に応じて通孔Ｆｈはバーリング成形を施すこともあ
る。In the fin forming process shown in FIG. 1, a thin plate blank Fb, which is preliminarily adjusted to the fin width of the product, is continuously supplied to the press machine and has a through hole Fh for passing a refrigerant pipe, a slit Fs for dividing the fin, And the fin cutting blade
The two through-holes Fc are sequentially formed. At this time, the through hole Fh may be subjected to burring molding if necessary.

【００１４】図２のフィン整列工程において、直前工程
のフィン成形工程で成形されたフィンＦを必要な製品の
個数分（ここでは６個分）に切断して、所定の姿勢に制
御して順次所定ピッチ間隔に整列する（具体的な整列方
法は後述）。この時、フィンＦの外形ではなく、通孔Ｆ
ｈの中心を合わすものである。In the fin aligning process of FIG. 2, the fins F formed in the fin forming process of the immediately preceding process are cut into the required number of products (six in this case), and the fins are controlled in a predetermined posture and sequentially. They are arranged at a predetermined pitch interval (a specific arrangement method will be described later). At this time, not the outer shape of the fin F but the through hole F
It is the center of h.

【００１５】図３の冷媒管挿入工程において、直前工程
のフィン整列工程で整列したフィンＦの６個の通孔Ｆｈ
に冷媒管Ｐ１〜Ｐ６を通すものである。この時、フィン
Ｆの通孔Ｆｈの内径は、冷媒管Ｐの外径より０．１４ｍ
ｍ程度大きく、冷媒管Ｐの挿入は軽い力で行なうことが
できる。In the refrigerant pipe inserting process of FIG. 3, the six through holes Fh of the fins F aligned in the fin aligning process of the immediately preceding process.
Through the refrigerant pipes P1 to P6. At this time, the inner diameter of the through hole Fh of the fin F is 0.14 m larger than the outer diameter of the refrigerant pipe P.
It is large by about m, and the insertion of the refrigerant pipe P can be performed with a light force.

【００１６】図４のフィン装着部分割工程において、直
前工程の冷媒管挿入工程で挿入した冷媒管Ｐ１〜Ｐ６と
フィンＦとの間の位置関係を調整する。この時、フィン
Ｆを等ピッチ間隔で整列したフィンブロックＦｆ１〜Ｆ
ｆ４と、冷媒管Ｐ１〜Ｐ６の周囲にフィンＦが存在しな
い剥き出し部Ｆｒ１〜Ｆｒ５を形成し、別部材（図示せ
ず）で位置決めする。ここで、冷媒管Ｐの剥き出し部Ｆ
ｒ１、Ｆｒ５は熱交換器が完成した後に他の部品と接合
するための冷媒管Ｐ引き回し用の箇所、剥き出し部Ｆｒ
２、Ｆｒ３、Ｆｒ４は冷媒管Ｐを曲げ加工するための曲
げ部になる箇所である。In the fin mounting portion dividing step of FIG. 4, the positional relationship between the fins F and the refrigerant tubes P1 to P6 inserted in the refrigerant tube inserting step of the immediately preceding step is adjusted. At this time, the fin blocks Ff1 to Ff in which the fins F are arranged at equal pitch intervals
The exposed portions Fr1 to Fr5 in which the fins F do not exist are formed around f4 and the refrigerant pipes P1 to P6, and they are positioned by separate members (not shown). Here, the exposed portion F of the refrigerant pipe P
r1 and Fr5 are parts for drawing around the refrigerant pipe P for joining with other parts after the heat exchanger is completed, and exposed parts Fr.
Reference numerals 2, Fr3, and Fr4 are bent portions for bending the refrigerant pipe P.

【００１７】図５の冷媒管拡管工程において、直前工程
のフィン装着部分割工程で位置決めしたフィンＦと冷媒
管Ｐを接合固定する。図５（ａ）に示すように、冷媒管
Ｐを通すフィンＦの通孔Ｆｈは冷媒管Ｐの拡管前におい
ては、冷媒管Ｐを通し易いように隙間があるが、図５
（ｂ）に示すように、冷媒管Ｐの外径をフィンＦの通孔
Ｆｈの内径を所定量だけ押し広げるように拡管してフィ
ンＦと冷媒管Ｐを密着させる。拡管はマンドレルを冷媒
管Ｐ内に挿入して機械的に押し広げる方法と、冷媒管Ｐ
の内部に充填した液体に高圧をかけて膨らませる方法が
考えられる。In the refrigerant pipe expanding step of FIG. 5, the fin F and the refrigerant tube P positioned in the fin mounting portion dividing step of the immediately preceding step are joined and fixed. As shown in FIG. 5 (a), the through holes Fh of the fins F through which the refrigerant pipes P pass have gaps before the expansion of the refrigerant pipes P so that the refrigerant pipes P can easily pass therethrough.
As shown in (b), the fin F and the refrigerant pipe P are brought into close contact with each other by expanding the outer diameter of the refrigerant pipe P so as to widen the inner diameter of the through hole Fh of the fin F by a predetermined amount. Expansion is performed by inserting a mandrel into the refrigerant pipe P and mechanically expanding it.
A possible method is to inflate the liquid filled inside the container by applying high pressure.

【００１８】図６のフィン分断工程において、直前工程
の冷媒管拡管工程で接合固定されたフィンブロックＦｆ
１〜Ｆｆ４と、冷媒管Ｐ１〜Ｐ６のうち、まず冷媒管Ｐ
１に接合固定されたフィンブロックＦｆ１１、Ｆｆ２
１、Ｆｆ３１、Ｆｆ４１を、それぞれフィンブロックＦ
ｆ１、Ｆｆ２、Ｆｆ３、Ｆｆ４から切り離して分断し、
個別の製品単位として切り分けるものである。具体的な
切断方法については後述する。本フィン分断工程におい
ては、順次適切なタイミングで冷媒管Ｐ１〜Ｐ６それぞ
れからなる６個の製品に分断するものである。In the fin cutting process of FIG. 6, the fin block Ff joined and fixed in the refrigerant pipe expanding process of the immediately preceding process.
1 to Ff4 and the refrigerant pipes P1 to P6, first, the refrigerant pipe P
Fin blocks Ff11 and Ff2 joined and fixed to No. 1
1, Ff31, and Ff41 are fin blocks F
Separated from f1, Ff2, Ff3, Ff4,
It is divided into individual product units. A specific cutting method will be described later. In the fin dividing step, the product is divided into six products each including the refrigerant pipes P1 to P6 at appropriate timings.

【００１９】図７の冷媒管曲げ工程において、直前工程
のフィン分断工程で個別の製品単位に分断されたフィン
ブロックＦｆ１１、Ｆｆ２１、Ｆｆ３１、Ｆｆ４１、及
びそれらフィンブロックと接合させた冷媒管Ｐ１を曲げ
加工して所定の形状に成形するものである。冷媒管Ｐ１
のフィンＦの接合されていない冷媒管剥き出し部Ｆｒ１
１、Ｆｒ２１、Ｆｒ３１、Ｆｒ４１、Ｆｒ５１の内、フ
ィンブロックＦｆに挟まれた剥き出し部Ｆｒ２１、Ｆｒ
３１、Ｆｒ４１に曲げ型（後述）を当てがい、互い違い
の方向に冷媒管Ｐが蛇行形状となるように曲げ加工する
ものである。この結果、冷媒管ＰとフィンＦを所定の形
状に成形した所定平面または所定空間に収まる熱交換器
Ｈとする製造方法である。In the bending step of the refrigerant pipe shown in FIG. 7, the fin blocks Ff11, Ff21, Ff31, Ff41 divided into individual product units in the fin cutting step immediately before, and the refrigerant pipe P1 joined to these fin blocks are bent. It is processed into a predetermined shape. Refrigerant tube P1
Refrigerant pipe exposed portion Fr1 in which the fins F are not joined
Of the 1, Fr21, Fr31, Fr41, Fr51, the exposed portions Fr21, Fr sandwiched between the fin blocks Ff.
A bending die (described later) is applied to the No. 31 and Fr 41, and the refrigerant pipes P are bent so as to have a meandering shape in alternate directions. As a result, the heat exchanger H is a manufacturing method in which the refrigerant pipes P and the fins F are molded into a predetermined shape and are contained in a predetermined plane or a predetermined space.

【００２０】図８〜図１０は、図２と図４で説明した本
発明のフィン整列工程、並びにフィン装着部分割工程に
おけるフィンの整列、位置決めの具体的方法、治具を説
明する斜視図である。FIGS. 8 to 10 are perspective views for explaining the fin aligning process of the present invention described with reference to FIGS. 2 and 4 and the specific method and jig for aligning and positioning the fins in the fin mounting portion dividing process. is there.

【００２１】図８はフィン整列工程における具体的方法
を示す斜視図である。図２のフィン整列工程において
は、図８に示すようにフィンＦは、所定ピッチ間隔で所
定数だけ溝Ｊｇの形成された櫛歯状治具Ｊに滑りこます
方式で並べていくものである。この時、フィンＦは図１
で示したフィン成形工程に使用するプレス機とリンクし
て同期化することでフィンＦの送り装置を兼用して省力
化することも可能である。櫛歯治具Ｊの溝Ｊｇの深さ
は、冷媒管挿入工程でのやり易さを考え、フィンＦの通
孔Ｆｈが溝Ｊｇ内に入ることがない深さにする。なお、
フィンＦの厚さに対して、櫛歯治具Ｊの溝Ｊｇの間隙は
２倍以上であることが望ましい。FIG. 8 is a perspective view showing a specific method in the fin alignment step. In the fin aligning step of FIG. 2, as shown in FIG. 8, the fins F are arranged in a comb-like jig J having a predetermined number of grooves Jg formed at predetermined pitch intervals by sliding. At this time, the fin F is shown in FIG.
By linking with and synchronizing with the press used in the fin forming process shown in (4), it is possible to use the feeding device of the fins F as well and save labor. The depth of the groove Jg of the comb jig J is set so that the through hole Fh of the fin F does not enter the groove Jg in consideration of easiness in the refrigerant tube insertion step. In addition,
It is desirable that the gap of the groove Jg of the comb jig J is twice or more the thickness of the fin F.

【００２２】図９は本発明の実施例の内、フィン整列工
程でフィンＦの整列に用いる櫛歯治具Ｊの具体的構造を
示す斜視図である。高さの低い板材Ｊｓと高さの高い板
材Ｊｔとを交互に積層し、その板材Ｊｓと板材Ｊｔとの
高さの違いによって溝Ｊｇを形成する。板材Ｊｓの厚さ
で溝Ｊｇの間隙量が決まり、板材Ｊｓと板材Ｊｔの厚さ
の合計によってフィンＦ（図９には図示せず）の整列時
のピッチ間隔が決定される。設計されたフィンブロック
Ｆｆ（図示せず）の長さに達するだけの所定枚数を積層
した板材Ｊｓと板材Ｊｔは、２本のボルトＪｂによって
固定される。FIG. 9 is a perspective view showing a specific structure of the comb tooth jig J used for aligning the fins F in the fin aligning step in the embodiment of the present invention. The plate material Js having a low height and the plate material Jt having a high height are alternately laminated, and the groove Jg is formed by the difference in height between the plate material Js and the plate material Jt. The thickness of the plate material Js determines the gap amount of the groove Jg, and the pitch interval at the time of alignment of the fins F (not shown in FIG. 9) is determined by the total thickness of the plate materials Js and Jt. The plate material Js and the plate material Jt, which are laminated by a predetermined number to reach the designed length of the fin block Ff (not shown), are fixed by two bolts Jb.

【００２３】図１０は、本発明の櫛歯治具Ｊを用いてフ
ィンＦを整列し、なおかつフィンＦの冷媒管Ｐへの装着
部の所定位置に分割する方法を説明する斜視図である。
フィンＦの整列時は、櫛歯治具Ｊは連続的に直列に並べ
られ、一製品分のフィンＦを定ピッチ間隔で順次整列す
る。その後、冷媒管Ｐ（図１０には図示せず）を挿入し
てから、或いは冷媒管Ｐを挿入すると同時に、所定のフ
ィンブロックＦｆの長さとなるように櫛歯治具ＪをＪ
１、Ｊ２、Ｊ３、Ｊ４に分割し切り離して所定の位置に
移動させることで、冷媒管ＰにフィンＦを接合しない剥
き出し部Ｆｒを形成するものである。ここで、各櫛歯治
具Ｊ１、Ｊ２、Ｊ３、Ｊ４のそれぞれの板材Ｊｓ、Ｊｔ
を固定するボルトＪｂ１、Ｊｂ２、Ｊｂ３、Ｊｂ４は櫛
歯治具Ｊ全体として直列に重ねる際に干渉しないよう、
位置をお互いにズラしている。FIG. 10 is a perspective view for explaining a method of aligning the fins F using the comb-tooth jig J of the present invention and dividing the fins F into the predetermined positions of the mounting portions to the refrigerant pipes P.
At the time of arranging the fins F, the comb jigs J are continuously arranged in series, and the fins F for one product are sequentially arranged at a constant pitch interval. Then, after inserting the refrigerant pipe P (not shown in FIG. 10) or at the same time when the refrigerant pipe P is inserted, the comb tooth jig J is set to J so that the fin block Ff has a predetermined length.
The exposed portion Fr in which the fins F are not joined to the refrigerant pipe P is formed by dividing into 1, 1, J2, J3, and J4, separating and moving to a predetermined position. Here, the plate materials Js and Jt of the comb jigs J1, J2, J3, and J4, respectively.
The bolts Jb1, Jb2, Jb3, and Jb4 for fixing the are fixed so as not to interfere when the comb jig J is stacked in series.
The positions are offset from each other.

【００２４】図１１は本発明の一実施例であるフィン分
断工程の詳細図である。整列して冷媒管Ｐを接合固定し
たフィンＦに切断手段Ｂ及びＢ’を用いて個々の製品に
分断する際、フィンに設けた分断用の通孔Ｆｃ及びＦ
ｃ’にそれぞれ切断手段Ｂ及びＢ’を通していくもので
ある。切断手段Ｂ及びＢ’は刃の方向は冷媒管Ｐから見
て遠くなる方向に向けることで、切断手段Ｂ及びＢ’が
それぞれのフィンＦの通孔Ｆｃ及びＦｃ’を通過切断後
に、フィン成形工程で予め設けられたスリットＦｓもあ
って、フィンＦを倒してダメージを与えることなく個々
の製品に分断できるものである。FIG. 11 is a detailed view of the fin cutting step which is an embodiment of the present invention. When cutting into individual products using the cutting means B and B'on the fins F in which the refrigerant pipes P are joined and fixed, the through holes Fc and F for cutting provided in the fins are provided.
The cutting means B and B'are respectively passed through c '. By directing the blades of the cutting means B and B ′ in a direction away from the refrigerant pipe P, fin cutting is performed after the cutting means B and B ′ have passed through the through holes Fc and Fc ′ of the respective fins F. There is also a slit Fs provided in advance in the process, and the product can be divided into individual products without damaging the fins F and damaging them.

【００２５】図１２は本発明の実施例のフィン分断工程
と冷媒管曲げ工程を連即的に繋げた場合の工程説明図で
ある。フィン拡管工程を経た製品は図１２（ａ）に示す
ように、冷媒管Ｐ１〜Ｐ６までがフィンブロックＦｆ１
〜Ｆｆ４で繋がった構造のまま、冷媒管曲げ工程に送ら
れる。冷媒管曲げ工程においては、冷媒管曲げ装置に備
えられた曲げ上型Ｄ１〜Ｄ４、及び曲げ下型Ｄ１’〜Ｄ
４’で冷媒管Ｐ１を挟み、後にフィン分断工程のフィン
分断装置に備えられた切断手段Ｂ及びＢ’（製品下方に
あるため図示せず）を図１１で説明した通りに移動させ
てフィンブロックＦｆ１〜Ｆｆ４から分断する。そのま
ま図１２（ｂ）に示すように、曲げ上型Ｄ１〜Ｄ４、及
び曲げ下型Ｄ１’〜Ｄ４’を移動して、残された冷媒管
Ｐ２〜Ｐ６とフィンブロックＦｆ１〜Ｆｆ４から、冷媒
管Ｐ１とフィンブロックＦｆ１１〜Ｆｆ４１を引き離し
て分断する。そのまま曲げ上型Ｄ１〜Ｄ４、及び曲げ下
型Ｄ１’〜Ｄ４’を所定の動きで移動させて製品として
の熱交換器Ｈを成形する。FIG. 12 is a process explanatory view when the fin cutting process and the refrigerant pipe bending process of the embodiment of the present invention are connected immediately. As shown in FIG. 12A, in the product that has undergone the fin expanding process, the refrigerant pipes P1 to P6 are fin blocks Ff1.
The structure connected by ~ Ff4 is sent to the refrigerant pipe bending step. In the refrigerant pipe bending step, upper bending dies D1 to D4 and lower bending dies D1 'to D provided in the refrigerant pipe bending device are provided.
The refrigerant block P1 is sandwiched by 4 ', and the cutting means B and B' (not shown because they are located below the product) provided in the fin cutting device in the fin cutting step are moved as described with reference to FIG. Divide from Ff1 to Ff4. As shown in FIG. 12 (b), the upper bending dies D1 to D4 and the lower bending dies D1 ′ to D4 ′ are moved to remove the remaining refrigerant pipes P2 to P6 and the fin blocks Ff1 to Ff4 from the refrigerant pipes. P1 and the fin blocks Ff11 to Ff41 are separated and divided. The upper bending dies D1 to D4 and the lower bending dies D1 'to D4' are moved as they are in a predetermined motion to form the heat exchanger H as a product.

【００２６】図１３は本発明の実施例の内、冷媒管Ｐ同
士の固定方法を示す説明図である。冷媒管曲げ工程にお
いて、冷媒管Ｐの曲げ加工後に曲げ上型Ｄ１〜Ｄ４、及
び曲げ下型Ｄ１’〜Ｄ４’を解放すると、冷媒管Ｐはス
プリングバックのためそのままでは所定の形状を保つの
が難しい。そこで、剛性の高いエンドプレートＳ１、Ｓ
２をフィンＦの脇に添えるだけでこの問題を解決でき
る。FIG. 13 is an explanatory view showing a method of fixing the refrigerant tubes P to each other in the embodiment of the present invention. In the refrigerant pipe bending step, when the upper bending dies D1 to D4 and the lower bending dies D1 ′ to D4 ′ are released after the bending of the refrigerant pipe P, the refrigerant pipe P keeps a predetermined shape as it is because of spring back. difficult. Therefore, highly rigid end plates S1 and S
This problem can be solved simply by attaching 2 to the side of the fin F.

【００２７】図１４は本発明の実施例の内、エンドプレ
ートＳと冷媒管Ｐとを固定する具体的な方法を示す説明
図である。図１４（ａ）に示すように、エンドプレート
Ｓの所定の溝に冷媒管Ｐを挿入する。この時、エンドプ
レートＳに挿入した冷媒管Ｐの両脇にタブＳｔを冷媒管
Ｐ１本につき２本設け、図１４（ｂ）に示すように、か
しめ治具Ｏ１、Ｏ２を垂直方向に押し込むことにより、
タブＳｔを冷媒管Ｐの外周に沿うように変形させて、エ
ンドプレートＳと冷媒管Ｐとを固定するものである。FIG. 14 is an explanatory view showing a concrete method for fixing the end plate S and the refrigerant pipe P in the embodiment of the present invention. As shown in FIG. 14A, the refrigerant pipe P is inserted into a predetermined groove of the end plate S. At this time, two tabs St are provided for each refrigerant pipe P on both sides of the refrigerant pipe P inserted in the end plate S, and the caulking jigs O1, O2 are pushed in vertically as shown in FIG. 14 (b). Due to
The tab St is deformed along the outer periphery of the refrigerant pipe P to fix the end plate S and the refrigerant pipe P.

【００２８】図１５は本発明の熱交換器Ｈを搭載した冷
蔵庫の部分斜視図である。本図は冷蔵庫を背面から見た
下部を示したもので、側板Ｍ１、Ｍ２、底板Ｍ３、蒸発
皿Ｅによって囲まれた空間に、冷媒の凝縮サイクル系を
搭載した構造を示すものである。本発明である、冷媒管
ＰとフィンＦで構成される熱交換器ＨはコンプレッサＣ
で圧縮された冷媒を冷媒管Ｐに通して、この熱交換器Ｈ
において放熱するものである。熱交換器Ｈにおいて放熱
された熱量はファンＶによって起こされる空気の強制対
流によって外界に流される。FIG. 15 is a partial perspective view of a refrigerator equipped with the heat exchanger H of the present invention. This figure shows the lower part of the refrigerator when viewed from the back side, and shows a structure in which a refrigerant condensing cycle system is mounted in a space surrounded by side plates M1, M2, a bottom plate M3, and an evaporating dish E. In the present invention, the heat exchanger H composed of the refrigerant pipes P and the fins F is a compressor C.
The refrigerant compressed by is passed through the refrigerant pipe P, and the heat exchanger H
It radiates heat in. The amount of heat radiated in the heat exchanger H is flown to the outside by forced convection of air caused by the fan V.

【００２９】本発明の熱交換器は、図１５に示す冷蔵庫
背面の凝縮サイクル以外にも、冷蔵庫内部の蒸発サイク
ル、空調機の熱交換器、冷凍機や除湿機の熱交換器にも
適用可能である。The heat exchanger of the present invention can be applied not only to the condensation cycle on the back of the refrigerator shown in FIG. 15, but also to the evaporation cycle inside the refrigerator, the heat exchanger for air conditioners, the heat exchanger for refrigerators and dehumidifiers. Is.

【００３０】以上説明した実施形態により、従来タイプ
の熱交換器と熱交換性能を維持しつつ、継目を極力少な
くして冷媒漏れに対する信頼性を高めた熱交換器の製造
方法並びに装置を提供できるものである。According to the embodiment described above, it is possible to provide a heat exchanger manufacturing method and apparatus in which the heat exchange performance of the conventional type heat exchanger is maintained and the number of joints is minimized to improve reliability against refrigerant leakage. It is a thing.

【００３１】[0031]

【発明の効果】本発明は従来の熱交換性能を確保しつ
つ、継目を極力少なくして気密信頼性を高めた熱交換器
の製造方法を提供するものである。これにより、炭化水
素系の可燃性のある冷媒を用いた場合でも、製品信頼性
を向上させた熱交換器を、高い設計自由度で多量に生産
することができる効果がある。As described above, the present invention provides a method for manufacturing a heat exchanger in which the heat exchange performance of the related art is ensured and the number of joints is minimized to improve the airtight reliability. As a result, even when a hydrocarbon-based flammable refrigerant is used, there is an effect that a heat exchanger with improved product reliability can be mass-produced with a high degree of design freedom.

【図面の簡単な説明】[Brief description of drawings]

【図１】熱交換器の製造工程のフィン成形工程を示す説
明図。FIG. 1 is an explanatory view showing a fin forming process of a heat exchanger manufacturing process.

【図２】熱交換器の製造工程のフィン整列工程を示す説
明図。FIG. 2 is an explanatory view showing a fin alignment step in the manufacturing process of the heat exchanger.

【図３】熱交換器の製造工程の冷媒管挿入工程を示す説
明図。FIG. 3 is an explanatory view showing a refrigerant pipe inserting step in the manufacturing process of the heat exchanger.

【図４】熱交換器の製造工程のフィン装着部分割工程を
示す説明図。FIG. 4 is an explanatory view showing a fin mounting portion dividing step of the heat exchanger manufacturing step.

【図５】熱交換器の製造工程の冷媒管拡管工程を示す説
明図。FIG. 5 is an explanatory diagram showing a refrigerant pipe expanding step in the manufacturing process of the heat exchanger.

【図６】熱交換器の製造工程のフィン分断工程を示す説
明図。FIG. 6 is an explanatory view showing a fin cutting step in the manufacturing process of the heat exchanger.

【図７】熱交換器の製造工程の冷媒管曲げ工程を示す説
明図。FIG. 7 is an explanatory view showing a refrigerant pipe bending step of the heat exchanger manufacturing step.

【図８】フィン整列工程における具体的方法を示す斜視
図。FIG. 8 is a perspective view showing a specific method in the fin alignment step.

【図９】フィン整列工程でフィンの整列に用いる櫛歯治
具の具体的構造を示す斜視図。FIG. 9 is a perspective view showing a specific structure of a comb tooth jig used for fin alignment in the fin alignment step.

【図１０】櫛歯治具を用いてフィンを整列し、なおかつ
フィンの冷媒管への装着部の所定位置に分割する方法を
説明する斜視図。FIG. 10 is a perspective view illustrating a method of aligning fins by using a comb tooth jig and dividing the fins into predetermined positions of a mounting portion of the fins to the refrigerant pipe.

【図１１】フィン分断工程の詳細図。FIG. 11 is a detailed view of a fin cutting step.

【図１２】フィン分断工程と冷媒管曲げ工程を連即的に
繋げた場合の工程説明図。FIG. 12 is a process explanatory view in the case where a fin cutting process and a refrigerant pipe bending process are connected immediately.

【図１３】冷媒管同士の固定方法を示す説明図。FIG. 13 is an explanatory view showing a method of fixing the refrigerant pipes together.

【図１４】エンドプレートと冷媒管とを固定する具体的
な方法を示す説明図。FIG. 14 is an explanatory view showing a specific method of fixing the end plate and the refrigerant pipe.

【図１５】本発明の熱交換器を搭載した冷蔵庫の部分斜
視図。FIG. 15 is a partial perspective view of a refrigerator equipped with the heat exchanger of the present invention.

【符号の説明】[Explanation of symbols]

Ｆ…フィン、Ｐ…冷媒管、Ｈ…熱交換器。 F ... Fins, P ... Refrigerant tubes, H ... Heat exchangers.

───────────────────────────────────────────────────── フロントページの続き (72)発明者久保田剛栃木県下都賀郡大平町大字富田800番地株式会社日立製作所冷熱事業部内 (72)発明者網本俊之東京都千代田区神田駿河台四丁目６番地株式会社日立製作所内 ─────────────────────────────────────────────────── ─── Continued front page (72) Inventor Tsuyoshi Kubota 800 Tomita, Ohira-cho, Shimotsuga-gun, Tochigi Hitachi Co., Ltd., Cooling & Heat Division (72) Inventor Toshiyuki Amimoto 4-6 Kanda Surugadai, Chiyoda-ku, Tokyo Within Hitachi, Ltd.

Claims

【特許請求の範囲】[Claims]

【請求項１】１本もしくは複数本を平行に配列した長尺
の冷媒管と、その冷媒管の垂直方向に所定の間隔で平行
に並べた複数枚のフィンからなるクロスフィン型熱交換
器の製造方法において、複数の製品分だけ結合された状
態で成形されるフィンのフィン成形工程と、その複数の
製品分だけ結合された状態のフィンを所定間隔で平行に
並べるフィン整列工程と、その複数の製品分だけ結合さ
れた状態のフィンに所定間隔であけられた通孔中に製品
分の本数だけ冷媒管を通す冷媒管挿入工程と、フィンに
挿入された冷媒管を全数拡管してフィンと冷媒管を密着
させる冷媒管拡管工程と、複数の製品分だけ結合された
状態のフィンを個別の製品に切離すフィン分断工程と、
個別に切離された製品の冷媒管を所定の形状に成形する
冷媒管曲げ工程と、冷媒管の内部の乾燥脱脂工程とで構
成したことを特徴とする熱交換器の製造方法。1. A cross fin type heat exchanger comprising one or a plurality of long refrigerant pipes arranged in parallel and a plurality of fins arranged in parallel at a predetermined interval in the vertical direction of the refrigerant pipes. In the manufacturing method, a fin forming step of fins formed in a state of being joined by a plurality of products, a fin aligning step of arranging the fins in a state of being joined by a plurality of products in parallel at predetermined intervals, and The refrigerant pipe insertion step of passing the refrigerant pipes as many as the number of products through the through holes provided at predetermined intervals in the fins that are joined by the product portion, and expanding all the refrigerant pipes inserted in the fins to form the fins. A refrigerant pipe expanding step of closely adhering the refrigerant tube, and a fin dividing step of separating the fins in the state of being joined by a plurality of products into individual products,
A method of manufacturing a heat exchanger, comprising: a refrigerant pipe bending step of forming individually separated refrigerant tubes of products into a predetermined shape; and a dry degreasing step inside the refrigerant tube.

【請求項２】１本もしくは複数本を平行に配列した長尺
の冷媒管と、その冷媒管の垂直方向に所定の間隔で平行
に並べた複数枚のフィンからなるクロスフィン型熱交換
器の製造方法において、前工程で複数の製品分だけ結合
された状態に成形されたフィンを所定間隔で平行に並べ
る際に、フィンを整列させる間隔と同等の間隔の溝を設
けた櫛歯状のフィン整列治具を用いてフィンを整列させ
るフィン整列工程を有することを特徴とする請求項１記
載の熱交換器の製造方法。2. A cross fin type heat exchanger comprising one or a plurality of long refrigerant tubes arranged in parallel and a plurality of fins arranged in parallel at a predetermined interval in the vertical direction of the refrigerant tubes. In the manufacturing method, when arranging fins formed in a state in which a plurality of products are bonded in the previous step in parallel at predetermined intervals, comb-shaped fins provided with grooves having an interval equal to the interval for arranging the fins. The method for manufacturing a heat exchanger according to claim 1, further comprising a fin aligning step of aligning the fins with an aligning jig.

【請求項３】複数本を平行に配列した長尺の冷媒管と、
その冷媒管の垂直方向に所定の間隔で平行に並べた複数
枚のフィンからなるクロスフィン型熱交換器の製造方法
並びに製造装置において、フィンを整列させる間隔と同
等の間隔の溝を設けた櫛歯状のフィン整列治具を所定の
２種類の厚さと高さの板材を交互に組合せることで構成
したことを特徴とする請求項２記載の熱交換器の製造方
法並びに製造装置。3. A long refrigerant pipe in which a plurality of pipes are arranged in parallel,
In a manufacturing method and a manufacturing apparatus of a cross fin type heat exchanger composed of a plurality of fins arranged in parallel at a predetermined interval in the vertical direction of the refrigerant pipe, a comb provided with a groove having an interval equal to an interval for aligning the fins. The method and apparatus for manufacturing a heat exchanger according to claim 2, wherein the tooth-shaped fin aligning jig is configured by alternately combining plate materials having predetermined two types of thickness and height.

【請求項４】１本もしくは複数本を平行に配列した長尺
の冷媒管と、その冷媒管の垂直方向に所定の間隔で平行
に並べた複数枚のフィンからなるクロスフィン型熱交換
器の製造方法において、フィンを整列させる間隔と同等
の間隔の溝を設けた櫛歯状の治具を用いてフィンを整列
させるフィン整列工程と、フィンに挿入された冷媒管を
拡管してフィンと冷媒管を密着させる冷媒管拡管工程と
の間のいずれかのタイミングで、櫛歯状の治具を用いて
フィンを所定間隔に整列させた後に、その治具を所定の
長さに分割して、整列したフィンを冷媒管に密着させる
箇所と、フィンの接触していない所定の長さの冷媒管剥
き出し箇所を、所定の箇所だけ設けるようにフィン整列
治具分断工程を有することを特徴とする請求項１〜３に
記載の熱交換器の製造方法。4. A cross fin type heat exchanger comprising one or a plurality of long refrigerant pipes arranged in parallel and a plurality of fins arranged in parallel at a predetermined interval in the vertical direction of the refrigerant pipes. In the manufacturing method, a fin aligning step of aligning the fins by using a comb-shaped jig provided with a groove having an interval equal to the interval for aligning the fins, and expanding the refrigerant pipe inserted in the fins and the fin and the refrigerant. At any timing between the refrigerant pipe expanding step of bringing the tubes into close contact, after aligning the fins at predetermined intervals using a comb-shaped jig, the jig is divided into predetermined lengths, A fin alignment jig dividing step is provided so that only a predetermined portion is provided with a portion where the aligned fins are brought into close contact with the refrigerant pipes and a portion where the fins are not in contact with each other and the exposed portions of the refrigerant pipes are provided. Item 1 to 3 of the heat exchanger Production method.

【請求項５】１本もしくは複数本を平行に配列した長尺
の冷媒管と、その冷媒管の垂直方向に所定の間隔で平行
に並べた複数枚のフィンからなるクロスフィン型熱交換
器の製造方法において、複数の製品分だけ結合された状
態のフィンを成形する際に、所定長さのスリットと所定
数の通孔を設け、その通孔に切断手段の刃を通して分断
する方式のフィン分断工程を有することを特徴とする熱
交換器の製造方法。5. A cross fin type heat exchanger comprising a long refrigerant pipe in which one or a plurality of pipes are arranged in parallel and a plurality of fins arranged in parallel at a predetermined interval in the vertical direction of the refrigerant pipe. In the manufacturing method, when forming a fin in a state in which a plurality of products are combined, a slit of a predetermined length and a predetermined number of through holes are provided, and the fin is divided by passing through the blade of the cutting means through the through hole. A method of manufacturing a heat exchanger, comprising the steps of:

【請求項６】１本もしくは複数本を平行に配列した長尺
の冷媒管と、その冷媒管の垂直方向に所定の間隔で平行
に並べた複数枚のフィンからなるクロスフィン型熱交換
器の製造方法並びに製造装置において、所定長さのスリ
ットと所定数の通孔を設けたフィンのフィン分断工程
で、その通孔に切断手段の刃を通して分断する際に切断
手段の刃を挿入された冷媒管と逆方向に向けたことを特
徴とする請求項５記載の熱交換器の製造方法並びに製造
装置。6. A cross fin type heat exchanger comprising one or a plurality of long refrigerant tubes arranged in parallel and a plurality of fins arranged in parallel at a predetermined interval in the vertical direction of the refrigerant tubes. In the manufacturing method and the manufacturing apparatus, in the fin cutting step of a fin provided with a slit of a predetermined length and a predetermined number of through holes, the refrigerant having the blade of the cutting means inserted when cutting through the blade of the cutting means through the through hole. The heat exchanger manufacturing method and manufacturing apparatus according to claim 5, wherein the heat exchanger is directed in a direction opposite to the direction of the tube.

【請求項７】１本もしくは複数本を平行に配列した長尺
の冷媒管と、その冷媒管の垂直方向に所定の間隔で平行
に並べた複数枚のフィンからなるクロスフィン型熱交換
器の製造方法において、複数の製品分だけ結合された状
態のフィンを個別の製品に切離すフィン分断工程で分断
された個別の製品が有する長尺の冷媒管が１本のみであ
るようにすることを特徴とする請求項５及び６記載の熱
交換器の製造方法。7. A cross fin type heat exchanger comprising one or a plurality of long refrigerant pipes arranged in parallel and a plurality of fins arranged in parallel at a predetermined interval in the vertical direction of the refrigerant pipes. In the manufacturing method, it is necessary that the individual product divided in the fin cutting step of cutting the fins in the state of being connected by a plurality of products into individual products have only one long refrigerant pipe. The method for manufacturing a heat exchanger according to claim 5, wherein the heat exchanger is manufactured.

【請求項８】１本もしくは複数本を平行に配列した長尺
の冷媒管と、その冷媒管の垂直方向に所定の間隔で平行
に並べた複数枚のフィンからなるクロスフィン型熱交換
器の製造方法並びに製造装置において、複数の製品分だ
け結合された状態のフィンを個別の製品に切離すフィン
分断工程で分断する直前に、次工程である冷媒管曲げ工
程の曲げ型若しくは冷媒管把持部材が、製品の任意の冷
媒管剥き出し箇所に応じてその冷媒管剥き出し箇所を把
持固定し、フィン分断工程終了直後にそのまま掴み替え
無しで冷媒管の曲げ加工を行なうことを特徴とする請求
項１記載の熱交換器の製造方法並びに製造装置。8. A cross fin type heat exchanger comprising one or a plurality of long refrigerant pipes arranged in parallel and a plurality of fins arranged in parallel in a direction perpendicular to the refrigerant pipes at a predetermined interval. In the manufacturing method and the manufacturing apparatus, immediately before cutting in the fin cutting step of cutting the fins in the state of being joined by a plurality of products into individual products, the bending die or the refrigerant pipe gripping member in the refrigerant pipe bending step which is the next step 2. The method according to claim 1, wherein the refrigerant pipe exposed portion is gripped and fixed in accordance with an arbitrary refrigerant pipe exposed portion of the product, and the refrigerant pipe is bent immediately after the fin cutting step without re-gripping. Manufacturing method and manufacturing apparatus of the heat exchanger of.

【請求項９】１本もしくは複数本を平行に配列した長尺
の冷媒管と、その冷媒管の垂直方向に所定の間隔で平行
に並べた複数枚のフィンからなるクロスフィン型熱交換
器の製造方法並びに製造装置工程終了直後にそのまま掴
み替え無しで冷媒管の曲げ加工を行なう際に複数の曲げ
箇所を同時に曲げ加工することを特徴とする請求項８記
載の熱交換器の製造方法。9. A cross fin type heat exchanger comprising one or a plurality of long refrigerant pipes arranged in parallel and a plurality of fins arranged in parallel at a predetermined interval in the vertical direction of the refrigerant pipes. 9. The method of manufacturing a heat exchanger according to claim 8, wherein a plurality of bending points are bent at the same time when the bending process of the refrigerant pipe is performed without changing the grip immediately after the manufacturing method and the manufacturing apparatus process are completed.

【請求項１０】１本もしくは複数本を平行に配列した長
尺の冷媒管と、その冷媒管の垂直方向に所定の間隔で平
行に並べた複数枚のフィンからなるクロスフィン型熱交
換器の製造方法並びに製造装置において、冷媒管曲げ工
程にて曲げ加工した直後に別の固定部材を成形された冷
媒管の複数の箇所に同時に挿入し、その挿入方向に押し
込むだけでその固定部材の一部を変形させて形状保持す
ることを特徴とする請求項８及び９記載の熱交換器の製
造方法並びに製造装置。10. A cross fin type heat exchanger comprising one or a plurality of long refrigerant tubes arranged in parallel and a plurality of fins arranged in parallel at a predetermined interval in the vertical direction of the refrigerant tubes. In the manufacturing method and the manufacturing apparatus, immediately after bending in the refrigerant tube bending step, another fixing member is simultaneously inserted into a plurality of locations of the formed refrigerant tube, and only a part of the fixing member is pushed in the inserting direction. The heat exchanger manufacturing method and manufacturing apparatus according to claim 8 or 9, wherein the heat exchanger is deformed to retain its shape.

【請求項１１】請求項１〜１０に記載の熱交換器を搭載
したことを特徴とする空調機、冷蔵庫、並びにその他の
冷凍応用製品。11. An air conditioner, a refrigerator, and other frozen application products, which are equipped with the heat exchanger according to any one of claims 1 to 10.