JPH1038487A - Heat exchanger and its manufacture - Google Patents
Heat exchanger and its manufactureInfo
- Publication number
- JPH1038487A JPH1038487A JP21197696A JP21197696A JPH1038487A JP H1038487 A JPH1038487 A JP H1038487A JP 21197696 A JP21197696 A JP 21197696A JP 21197696 A JP21197696 A JP 21197696A JP H1038487 A JPH1038487 A JP H1038487A
- Authority
- JP
- Japan
- Prior art keywords
- plate
- heat exchange
- exchange tube
- flat heat
- fin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Landscapes
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は熱交換器の製造方
法及び熱交換器に関するもので、更に詳細には、例えば
自動車用空調機器あるいは家屋用空調機器等に使用され
る熱交換器で、適宜間隔をおいて配列される複数の板状
フィンと複数段の熱交換管を接触交差した熱交換器の製
造方法及び熱交換器に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a heat exchanger and a heat exchanger. More specifically, the present invention relates to a heat exchanger for use in, for example, an air conditioner for a car or a house. The present invention relates to a method of manufacturing a heat exchanger in which a plurality of plate-like fins arranged at intervals and a plurality of stages of heat exchange tubes are contacted and crossed, and a heat exchanger.
【０００２】[0002]
【従来の技術】従来この種の熱交換器として、図９に示
すように、一定間隔をおいて平行に配列された複数の平
板状フィンａと、これらの平板状フィンａに穿設された
長孔状挿通孔ｂを貫通する断面偏平状の熱交換管ｃを有
する熱交換器が知られている。このように断面偏平状の
熱交換管ｃを用いることにより、円形状の熱交換管に比
べて空気抵抗の損失を少なくすることができるという利
点がある。2. Description of the Related Art As a conventional heat exchanger of this type, as shown in FIG. 9, a plurality of flat fins a arranged in parallel at regular intervals and a plurality of flat fins a formed in these flat fins a are provided. A heat exchanger having a heat exchange tube c having a flat cross section penetrating the elongated hole b is known. The use of the heat exchange tube c having a flat cross section has an advantage that the loss of air resistance can be reduced as compared with the heat exchange tube having a circular shape.
【０００３】このような偏平状熱交換管を用いた熱交換
器を製造するには、図１０及び図１１に示すように、挿
通孔ｂを穿設した板状フィンａを、対峙する治具ｄの間
に適宜間隔をおいて多数枚例えば５００枚配置し、各板
状フィンａの挿通孔ｂ内に偏平状熱交換管ｃを挿入して
板状フィンａと偏平状熱交換管ｃとを密着させ、その後
ろう付等によって一体化している。In order to manufacture a heat exchanger using such a flat heat exchange tube, as shown in FIGS. 10 and 11, a plate-like fin a having an insertion hole b is attached to a jig facing the same. A large number of, for example, 500 sheets are arranged at appropriate intervals between the flat fins a and the flat heat exchange tubes c are inserted into the insertion holes b of the respective plate fins a. And then integrated by brazing or the like.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、従来の
この種の熱交換器の製造方法においては、偏平状熱交換
管ｃを板状フィンａの挿通孔ｂ内に挿入する際、図１１
に示すように、摩擦によって板状フィンａが屈曲する虞
れがあり、その結果、板状フィンａの間隔が不均一とな
り、熱交換器の外観の体裁を悪くするばかりか熱交換効
率の低下を招くという問題がある。したがって、板状フ
ィンａの挿通孔ｂ内に偏平状熱交換管ｃを挿入するに
は、高い精度と熟練を要し、組立製造に手数と時間を要
すると共に、製造コストが嵩むという問題がある。However, in the conventional method of manufacturing this type of heat exchanger, when the flat heat exchange tube c is inserted into the insertion hole b of the plate-like fin a, FIG.
As shown in (1), there is a risk that the plate-like fins a may be bent due to friction. As a result, the intervals between the plate-like fins a become uneven, which not only deteriorates the appearance of the heat exchanger but also lowers the heat exchange efficiency. Problem. Therefore, in order to insert the flat heat exchange tube c into the insertion hole b of the plate-like fin a, there is a problem that high precision and skill are required, time and labor are required for assembling and manufacturing, and the manufacturing cost is increased. .
【０００５】この発明は上記事情に鑑みなされたもの
で、熱交換管と板状フィンとの密着性を良好にすると共
に、組立を容易に行うことができる熱交換器の製造方法
及び熱交換器を提供することを目的とするものである。SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and provides a method of manufacturing a heat exchanger and a heat exchanger capable of improving the adhesion between a heat exchange tube and a plate-like fin and facilitating assembly. The purpose is to provide.
【０００６】[0006]
【課題を解決するための手段】上記目的を達成するた
め、請求項１記載の発明は、適宜間隔をおいて配列され
る複数の板状フィンと、これら板状フィンに設けられた
挿通孔を貫通する複数の偏平状熱交換管とを具備する熱
交換器を製造するに当って、 上記板状フィンの挿通孔
をテーパ状長孔にて形成し、 上記偏平状熱交換管の断
面形状を、上記挿通孔の狭小テーパ部に嵌合し得るテー
パ状に形成し、 上記挿通孔の拡開テーパ部側に上記偏
平状熱交換管を挿入した後、板状フィンと偏平状熱交換
管とを相対的に移動して、偏平状熱交換管を挿通孔の狭
小テーパ部に密着させる、ことを特徴とする。In order to achieve the above object, according to the first aspect of the present invention, a plurality of plate-like fins arranged at appropriate intervals and insertion holes provided in these plate-like fins are provided. In manufacturing a heat exchanger including a plurality of flat heat exchange tubes penetrating, the insertion hole of the plate-like fin is formed by a tapered long hole, and the cross-sectional shape of the flat heat exchange tube is formed. , Formed in a taper shape that can fit into the narrow taper portion of the insertion hole, after inserting the flat heat exchange tube on the expanding tapered portion side of the insertion hole, a plate-shaped fin and a flat heat exchange tube Are relatively moved to bring the flat heat exchange tube into close contact with the narrow tapered portion of the insertion hole.
【０００７】請求項２記載の発明は、適宜間隔をおいて
配列される複数の板状フィンと、これら板状フィンに設
けられた挿通孔を貫通する複数の偏平状熱交換管とを具
備する熱交換器を製造するに当って、 上記板状フィン
の挿通孔をテーパ状長孔にて形成し、 上記偏平状熱交
換管の断面形状を、上記挿通孔の狭小テーパ部に嵌合し
得る偏平状に形成し、 上記挿通孔の拡開テーパ部側に
上記偏平状熱交換管を挿入した後、板状フィンと偏平状
熱交換管とを相対的に移動して、偏平状熱交換管を挿通
孔の狭小テーパ部に密着させる、ことを特徴とする。According to a second aspect of the present invention, there are provided a plurality of plate-like fins arranged at appropriate intervals and a plurality of flat heat exchange tubes penetrating through insertion holes provided in these plate-like fins. In manufacturing the heat exchanger, the insertion hole of the plate-like fin is formed by a tapered long hole, and the cross-sectional shape of the flat heat exchange tube can be fitted to the narrow tapered portion of the insertion hole. After forming the flat heat exchange tube on the side of the expansion taper portion of the insertion hole, the flat heat exchange tube is relatively moved between the plate-like fin and the flat heat exchange tube, and the flat heat exchange tube is formed. Is brought into close contact with the narrow tapered portion of the insertion hole.
【０００８】請求項３記載の発明は、請求項１又は２記
載の熱交換器の製造方法において、上記偏平状熱交換管
及び板状フィンをアルミニウム合金製部材にて形成する
と共に、上記偏平状熱交換管又は板状フィンのうちの少
なくとも一方の表面に、この偏平状熱交換管及び板状フ
ィンよりも融点の低いアルミニウム合金層を形成して、
偏平状熱交換管と板状フィンとをろう付けすることを特
徴とする。According to a third aspect of the present invention, in the method for manufacturing a heat exchanger according to the first or second aspect, the flat heat exchange tube and the plate-like fin are formed of an aluminum alloy member, and the flat heat exchange tube and the plate fin are formed of the flat heat exchange tube. Forming an aluminum alloy layer having a lower melting point than the flat heat exchange tube and the plate-like fin on at least one surface of the heat exchange tube or the plate-like fin,
The flat heat exchange tube and the plate fin are brazed.
【０００９】この場合、アルミニウム合金層を形成する
には、例えばＡｌ−Ｓｉ，Ａｌ−Ｃｕ又はＡｌ−Ｃｕ−
Ｓｉのろう材粉末と、フラックス粉末とバインダーから
なる混合物をアルミニウム又はアルミニウム合金製偏平
状熱交換管の表面に塗布すると共に、ろう材溶融温度以
上に加熱して、偏平管表面にろう材合金層を形成するこ
とができる。In this case, to form the aluminum alloy layer, for example, Al-Si, Al-Cu or Al-Cu-
A mixture of a brazing filler metal powder of Si, a flux powder and a binder is applied to the surface of a flat heat exchange tube made of aluminum or an aluminum alloy, and heated to a temperature equal to or higher than a melting temperature of the brazing filler metal to form a brazing alloy layer on the flat tube surface Can be formed.
【００１０】請求項４記載の発明は、適宜間隔をおいて
配列される複数の板状フィンと、これら板状フィンに設
けられた挿通孔を貫通する複数の偏平状熱交換管とを具
備する熱交換器において、 上記板状フィンの挿通孔を
テーパ状長孔にて形成し、上記偏平状熱交換管を、上記
挿通孔の狭小テーパ部に密着するテーパ状に形成してな
る、ことを特徴とする。According to a fourth aspect of the present invention, there are provided a plurality of plate-like fins arranged at appropriate intervals and a plurality of flat heat exchange tubes penetrating through insertion holes provided in these plate-like fins. In the heat exchanger, the insertion hole of the plate-like fin is formed by a tapered long hole, and the flat heat exchange tube is formed in a tapered shape in close contact with a narrow tapered portion of the insertion hole. Features.
【００１１】請求項５記載の発明は、適宜間隔をおいて
配列される複数の板状フィンと、これら板状フィンに設
けられた挿通孔を貫通する複数の偏平状熱交換管とを具
備する熱交換器において、 上記板状フィンの挿通孔を
テーパ状長孔にて形成し、上記偏平状熱交換管を、上記
挿通孔の狭小テーパ部に密着する偏平状に形成してな
る、ことを特徴とする。According to a fifth aspect of the present invention, there are provided a plurality of plate-like fins arranged at appropriate intervals and a plurality of flat heat exchange tubes penetrating through insertion holes provided in these plate-like fins. In the heat exchanger, the insertion hole of the plate-shaped fin is formed by a tapered long hole, and the flat heat exchange tube is formed in a flat shape in close contact with a narrow tapered portion of the insertion hole. Features.
【００１２】請求項６記載の発明は、請求項４又は５記
載の熱交換器において、 上記板状フィンの挿通孔の開
口縁に、隣接する板状フィンに当接する起立片を形成し
てなる、ことを特徴とする。According to a sixth aspect of the present invention, in the heat exchanger according to the fourth or fifth aspect, an upright piece is formed at an opening edge of the insertion hole of the plate-like fin to contact an adjacent plate-like fin. , Characterized in that.
【００１３】請求項１，２，４及び５記載の発明によれ
ば、板状フィンに設けられた挿通孔の拡開テーパ部側に
偏平状熱交換管を挿入した後、板状フィンと偏平状熱交
換管とを相対的に移動して、偏平状熱交換管を挿通孔の
狭小テーパ部に密着させることができるので、板状フィ
ンを変形させることなく偏平状熱交換管を板状フィンの
挿通孔内に挿入することができ、熱交換効率の良好な熱
交換器を極めて容易に製造することができる。According to the first, second, fourth and fifth aspects of the present invention, after the flat heat exchange tube is inserted into the expansion taper portion side of the insertion hole provided in the plate fin, the flat fin and the flat heat exchange tube are inserted. The flat heat exchange tube can be closely moved to the narrow tapered portion of the insertion hole by moving the flat heat exchange tube relatively, so that the flat heat exchange tube can be The heat exchanger having good heat exchange efficiency can be manufactured very easily.
【００１４】請求項３記載の発明によれば、偏平状熱交
換管又は板状フィンのうちの少なくとも一方の表面に、
この偏平状熱交換管及び板状フィンよりも融点の低いア
ルミニウム合金層を形成して、偏平状熱交換管と板状フ
ィンとをろう付けすることにより、ろう付を容易にする
ことができると共に、ろう付部の信頼性の向上を図るこ
とができる。According to the third aspect of the present invention, at least one of the flat heat exchange tubes and the plate-like fins has
By forming an aluminum alloy layer having a lower melting point than the flat heat exchange tube and the plate fins and brazing the flat heat exchange tube and the plate fins, brazing can be facilitated. Thus, the reliability of the brazed portion can be improved.
【００１５】請求項６記載の発明によれば、板状フィン
の挿通孔の開口縁に、隣接する板状フィンに当接する起
立片を形成することにより、多数配置される板状フィン
を所定の間隔で位置決めすることができると共に、隣接
する板状フィン間の間隔を一定の寸法に維持することが
できる。また、板状フィンと偏平状熱交換管との接触面
積を増大させることができ、板状フィンと偏平状熱交換
管の密着性の向上を図ることができる。According to the sixth aspect of the present invention, the plate-shaped fins arranged in a large number are formed at the opening edges of the insertion holes of the plate-shaped fins by forming upstanding pieces abutting on the adjacent plate-shaped fins. Positioning can be performed at intervals, and the interval between adjacent plate-like fins can be maintained at a constant size. Further, the contact area between the plate-shaped fin and the flat heat exchange tube can be increased, and the adhesion between the plate-shaped fin and the flat heat exchange tube can be improved.
【００１６】[0016]
【発明の実施の形態】以下、この発明の実施の形態を添
付図面に基づいて詳述する。Embodiments of the present invention will be described below in detail with reference to the accompanying drawings.
【００１７】図１はこの発明の熱交換器の一例を示す斜
視図、図２はその要部を示す斜視図、図３は図２の正面
図、図４は図３のＡ−Ａ線に沿う断面図（ａ）及びその
Ｂ部の拡大断面図である。FIG. 1 is a perspective view showing an example of the heat exchanger of the present invention, FIG. 2 is a perspective view showing a main part thereof, FIG. 3 is a front view of FIG. 2, and FIG. It is sectional drawing (a) which follows, and the enlarged sectional view of the B part.
【００１８】上記熱交換器は、適宜間隔をおいて配列さ
れる複数の板状フィン１と、これら板状フィン１に設け
られた略偏平楕円形状のテーパ付き挿通孔２を貫通する
互いに平行な複数のテーパ付き偏平状熱交換管３と、互
いに間隔をおいて配置され、偏平状熱交換管３に連通す
るパイプからなる一対のヘッダ４，５とを、一体ろう付
けしてなる。なお、一方のヘッダ４には熱媒体Ｒの流入
口８が設けられており、また他方のヘッダ５には流出口
９が設けられている。In the heat exchanger, a plurality of plate-like fins 1 arranged at appropriate intervals and a substantially flat elliptical tapered through hole 2 provided in these plate-like fins 1 are parallel to each other. A plurality of tapered flat heat exchange tubes 3 and a pair of headers 4 and 5 which are arranged at intervals from each other and are formed of pipes communicating with the flat heat exchange tubes 3 are integrally brazed. One header 4 is provided with an inlet 8 for the heat medium R, and the other header 5 is provided with an outlet 9.
【００１９】この場合、板状フィン１に設けられる挿通
孔２は、図３に示すように、一端部が拡開テーパ部２ａ
を有し、他端部が狭小テーパ部２ｂを有するテーパ状長
孔形状に形成されている。偏平状熱交換管３は、その断
面形状が、上記挿通孔２の狭小テーパ部２ｂ側に密着し
得るテーパ形状に形成されている。また、偏平状熱交換
管３は複数の補強壁６にて区画される複数の通路７が形
成されている。In this case, as shown in FIG. 3, one end of the insertion hole 2 provided in the plate-like fin 1 has an expanding tapered portion 2a.
And the other end is formed in a tapered long hole shape having a narrow tapered portion 2b. The cross-sectional shape of the flat heat exchange tube 3 is formed in a tapered shape capable of closely adhering to the narrow tapered portion 2 b side of the insertion hole 2. The flat heat exchange tube 3 has a plurality of passages 7 defined by a plurality of reinforcing walls 6.
【００２０】また、板状フィン１の挿通孔２の開口縁の
対向する両辺、正確には長辺側縁部に、一対の起立片１
０が形成されている。この起立片１０は、図５に示すよ
うに、板状フィン１の同一面側に互いにハの字状に起立
されており、隣接する板状フィン１に当接して板状フィ
ン１間の間隔を一定に維持し得る位置決め機能を有する
と共に、偏平状熱交換管３との密着性の向上が図れるよ
うになっている。Further, a pair of upright pieces 1 is provided on both sides of the opening edge of the insertion hole 2 of the plate-like fin 1, more precisely, on the long side edge.
0 is formed. As shown in FIG. 5, the standing pieces 10 are erected on the same surface side of the plate-like fins 1 in a U-shape, and contact the adjacent plate-like fins 1 to form an interval between the plate-like fins 1. Is maintained at a constant level, and the adhesion to the flat heat exchange tube 3 is improved.
【００２１】上記のように構成される熱交換器におい
て、ヘッダ４，５と偏平状熱交換管３はアルミニウム合
金製押出形材にて形成され、板状フィン１はアルミニウ
ム合金製板材にて形成されている。In the heat exchanger constructed as described above, the headers 4 and 5 and the flat heat exchange tubes 3 are formed of an extruded aluminum alloy material, and the plate-like fins 1 are formed of an aluminum alloy plate material. Have been.
【００２２】上記のように構成される熱交換器を組立て
るには、まず、所定枚数例えば５００枚の板状フィン１
を隣接する同士の起立片１０を当接させた状態で、図示
しない一対の治具間に一定間隔にセットする。なお、治
具にも板状フィン１に設けられたテーパ付き挿通孔２と
同様なテーパ付き挿通孔が設けられている。In order to assemble the heat exchanger constructed as described above, first, a predetermined number of plate fins 1, for example, 500
Is set at a fixed interval between a pair of jigs (not shown) in a state where the upstanding pieces 10 adjacent to each other are in contact with each other. The jig is also provided with a tapered insertion hole similar to the tapered insertion hole 2 provided in the plate-like fin 1.
【００２３】次に、図６（ａ）に示すように、挿通孔２
の拡開テーパ部２ａ側内に偏平状熱交換管３を挿入す
る。各挿通孔２の拡開テーパ部２ａ内に偏平状熱交換管
３を挿入した後、板状フィン１と偏平状熱交換管３を相
対的に移動、すなわち挿通孔２及び偏平状熱交換管３の
長軸方向に移動することにより、偏平状熱交換管３を挿
通孔２の狭小テーパ部２ｂ側に移動し、偏平状熱交換管
３を挿通孔２の狭小テーパ部２ｂ側に密着させる（図６
（ｂ）参照）。この場合、挿通孔２の拡開テーパ部２ａ
と偏平状熱交換管３との間に隙間が生じるが、この隙間
は例えば２〜３ｍｍのような微小にすることが可能であ
り、ろう付時のろう材の毛細管現象によって閉塞できる
ものである。Next, as shown in FIG.
The flat heat exchange tube 3 is inserted into the expanded tapered portion 2a side. After inserting the flat heat exchange tube 3 into the expansion tapered portion 2a of each insertion hole 2, the plate-like fin 1 and the flat heat exchange tube 3 are relatively moved, that is, the insertion hole 2 and the flat heat exchange tube By moving the flat heat exchange tube 3 toward the narrow tapered portion 2b of the insertion hole 2 by moving the flat heat exchange tube 3 in the long axis direction, the flat heat exchange tube 3 is brought into close contact with the narrow tapered portion 2b of the insertion hole 2. (FIG. 6
(B)). In this case, the expanding tapered portion 2a of the insertion hole 2
A gap is formed between the flat heat exchanger tube 3 and the flat heat exchange tube 3. This gap can be made as small as 2 to 3 mm, for example, and can be closed by the capillary action of the brazing material during brazing. .
【００２４】上記のようにして、板状フィン１の挿通孔
２内に偏平状熱交換管３を挿入した後、偏平状熱交換管
３を、ヘッダ４，５に設けた挿入用穴（図示せず）に挿
入し、ヘッダ４，５と連結する。そして、これらヘッダ
４，５、偏平状熱交換管３及び板状フィン１を、後述す
る方法によって一体ろう付けして、熱交換器を構成す
る。After the flat heat exchange tube 3 is inserted into the insertion hole 2 of the plate-like fin 1 as described above, the flat heat exchange tube 3 is inserted into the insertion hole (see FIG. (Not shown) and connect with headers 4 and 5. Then, the headers 4 and 5, the flat heat exchange tubes 3 and the plate-like fins 1 are integrally brazed by a method to be described later to form a heat exchanger.
【００２５】この場合、図４（ｂ）に示すように、偏平
状熱交換管３の表面に、この偏平状熱交換管３及び板状
フィン１よりも融点の低いアルミニウム合金層１１を形
成して、ろう材として寄与させることにより、偏平状熱
交換管３と板状フィン１を一体ろう付けする。また、同
様に、偏平状熱交換管３とヘッダ４，５を一体ろう付す
る。ここでは、Ａｌ−Ｓｉ，Ａｌ−Ｃｕ又はＡｌ−Ｃｕ
−Ｓｉのろう材粉末と、フラックス粉末とからなるろう
材を、偏平状熱交換管３の表面に塗布すると共に、ろう
材溶融温度以上に加熱して、押出偏平管表面にアルミニ
ウム合金層１１を形成して、偏平状熱交換管３と板状フ
ィン１とをろう付けする。In this case, as shown in FIG. 4B, an aluminum alloy layer 11 having a lower melting point than the flat heat exchange tube 3 and the plate fin 1 is formed on the surface of the flat heat exchange tube 3. The flat heat exchange tube 3 and the plate-like fin 1 are integrally brazed by contributing as a brazing material. Similarly, the flat heat exchange tube 3 and the headers 4 and 5 are integrally brazed. Here, Al-Si, Al-Cu or Al-Cu
A brazing material comprising -Si brazing material powder and a flux powder is applied to the surface of the flat heat exchange tube 3 and heated to a temperature equal to or higher than the melting temperature of the brazing material to form an aluminum alloy layer 11 on the extruded flat tube surface. Then, the flat heat exchange tube 3 and the plate-like fin 1 are brazed.
【００２６】上記説明では、偏平状熱交換管３の表面
に、この偏平状熱交換管３及び板状フィン１よりも融点
の低いアルミニウム合金層１１を形成して、ろう材とし
て寄与させているが、偏平状熱交換管３に代えて板状フ
ィン１の表面に同様なアルミニウム合金層１１を形成し
てもよい。また、偏平状熱交換管３及び板状フィン１の
双方に同様なアルミニウム合金層１１を形成して、偏平
状熱交換管３と板状フィン１とを一体ろう付してもよ
い。In the above description, an aluminum alloy layer 11 having a lower melting point than the flat heat exchange tube 3 and the plate-like fin 1 is formed on the surface of the flat heat exchange tube 3 to contribute as a brazing material. However, a similar aluminum alloy layer 11 may be formed on the surface of the plate-like fin 1 instead of the flat heat exchange tube 3. Further, a similar aluminum alloy layer 11 may be formed on both the flat heat exchange tube 3 and the plate fin 1, and the flat heat exchange tube 3 and the plate fin 1 may be integrally brazed.
【００２７】上記実施形態では、挿通孔２及び偏平状熱
交換管３が水平方向に延びる中心線１２に関して対称な
勾配を設けたテーパ状に形成される場合について説明し
たが、必しもこのようなテーパ状である必要はなく、例
えば図７に示すように、挿入孔２及び偏平状熱交換管３
を上記中心線１２に対して平行な辺２１，３１と、中心
線１２及び辺２１，３１に対する勾配２２，３２を有す
るテーパ状に形成してもよい。このように形成すること
により、偏平状熱交換管３の下辺３１と挿通孔２の辺２
１とを沿わせて偏平状熱交換管３を挿入し、その後、狭
小テーパ部２ｂ側へ移動することができるので、熱交換
器の組立作業を更に容易にすることができると共に、板
状フィン１と偏平状熱交換管３の結合を安定化させるこ
とができる。In the above embodiment, the case where the insertion hole 2 and the flat heat exchange tube 3 are formed in a tapered shape having a symmetrical gradient with respect to the center line 12 extending in the horizontal direction has been described. It is not necessary to have a tapered shape. For example, as shown in FIG.
May be formed in a tapered shape having sides 21 and 31 parallel to the center line 12 and gradients 22 and 32 with respect to the center line 12 and the sides 21 and 31. By forming in this way, the lower side 31 of the flat heat exchange tube 3 and the side 2 of the insertion hole 2
1 can be inserted along the flat heat exchange tube 3 and then moved toward the narrow tapered portion 2b, so that assembling work of the heat exchanger can be further facilitated and the plate-like fins can be inserted. 1 and the flat heat exchange tube 3 can be stabilized.
【００２８】また、上記実施形態では、偏平状熱交換管
３の断面形状が挿通孔２の狭小テーパ部２ｂに嵌合し得
るテーパ状に形成される場合について説明したが、偏平
状熱交換管は必しもテーパ状である必要はなく、例えば
図８に示すように、挿通孔２（この場合、上辺に勾配を
有するテーパ状挿通孔を示す）の狭小テーパ部２ｂに嵌
合し得る上下辺が平行な偏平状の熱交換管３Ａとしても
よい。Further, in the above embodiment, the case where the cross-sectional shape of the flat heat exchange tube 3 is formed in a tapered shape capable of fitting into the narrow tapered portion 2b of the insertion hole 2 has been described. Need not necessarily be tapered. For example, as shown in FIG. 8, the upper and lower portions which can fit into the narrow tapered portion 2b of the insertion hole 2 (in this case, a tapered insertion hole having a slope on the upper side). A flat heat exchange tube 3A whose sides are parallel may be used.
【００２９】このように形成される偏平状熱交換管３Ａ
を用いて熱交換器を組立てるには、上述と同様に、所定
枚数例えば５０枚の板状フィン１をセットした後、図８
（ａ）に示すように、挿通孔２の拡開テーパ部２ａ側内
に偏平状熱交換管３Ａを挿入する。各挿通孔２の拡開テ
ーパ部２ａ内に偏平状熱交換管３Ａを挿入した後、板状
フィン１と偏平状熱交換管３Ａを相対的に移動、すなわ
ち挿通孔２及び偏平状熱交換管３Ａの長軸方向に移動す
ることにより、偏平状熱交換管３Ａを挿通孔２の狭小テ
ーパ部２ｂ側に移動し、偏平状熱交換管３Ａを挿通孔２
の狭小テーパ部２ｂ側に密着させる（図８（ｂ）参
照）。The flat heat exchange tube 3A thus formed
In order to assemble the heat exchanger using the fins, a predetermined number of, for example, 50 plate-like fins 1 are set as described above, and
As shown in (a), the flat heat exchange tube 3A is inserted into the insertion hole 2 on the side of the expanding tapered portion 2a. After inserting the flat heat exchange tube 3A into the expanded tapered portion 2a of each insertion hole 2, the plate-like fin 1 and the flat heat exchange tube 3A are relatively moved, that is, the insertion hole 2 and the flat heat exchange tube By moving the flat heat exchange tube 3A toward the narrow tapered portion 2b of the insertion hole 2 by moving the flat heat exchange tube 3A in the long axis direction of the insertion
(See FIG. 8 (b)).
【００３０】なお、上記説明では、板状フィン１の挿通
孔２間が平坦状になっているが、板状フィン１の挿通孔
２間に、挿通孔２の長軸方向と略直交する方向に延びる
複数の補強部例えばルーバーや複数のリブを突設するこ
とにより、板状フィン１の強度を高めることができ、組
立後の板状フィン１の屈曲変形等を防止することができ
る。In the above description, the space between the insertion holes 2 of the plate-like fin 1 is flat, but the space between the insertion holes 2 of the plate-like fin 1 is substantially perpendicular to the longitudinal direction of the insertion hole 2. By projecting a plurality of reinforcing portions, for example, louvers and a plurality of ribs, extending to the fin 1, the strength of the plate-like fin 1 can be increased, and bending deformation and the like of the plate-like fin 1 after assembly can be prevented.
【００３１】[0031]
【発明の効果】以上説明したようにこの発明によれば、
次のような優れた効果が得られる。As described above, according to the present invention,
The following excellent effects can be obtained.
【００３２】（１）請求項１，２，４及び５記載の発明
によれば、板状フィンに設けられた挿通孔の拡開テーパ
部側に偏平状熱交換管を挿入した後、板状フィンと偏平
状熱交換管とを相対的に移動して、偏平状熱交換管を挿
通孔の狭小テーパ部に密着させることができるので、板
状フィンを変形させることなく偏平状熱交換管を板状フ
ィンの挿通孔内に挿入することができ、熱交換効率の良
好な熱交換器とすることができると共に、この熱交換器
を極めて容易に製造することができる。(1) According to the first, second, fourth and fifth aspects of the present invention, after the flat heat exchange tube is inserted into the opening tapered portion side of the insertion hole provided in the plate-like fin, the plate-like fin is inserted. Since the fin and the flat heat exchange tube can be relatively moved and the flat heat exchange tube can be brought into close contact with the narrow tapered portion of the insertion hole, the flat heat exchange tube can be moved without deforming the plate-like fin. The heat exchanger can be inserted into the insertion hole of the plate-like fin, and the heat exchanger can have a good heat exchange efficiency, and the heat exchanger can be manufactured very easily.
【００３３】（２）請求項３記載の発明によれば、偏平
状熱交換管又は板状フィンのうちの少なくとも一方の表
面に、この偏平状熱交換管及び板状フィンよりも融点の
低いアルミニウム合金層を形成して、偏平状熱交換管と
板状フィンとをろう付けすることにより、ろう付を容易
にすることができると共に、ろう付部の信頼性の向上を
図ることができる。(2) According to the third aspect of the present invention, at least one of the flat heat exchange tube and the plate-like fin has an aluminum surface having a lower melting point than the flat heat exchange tube and the plate-like fin. By forming the alloy layer and brazing the flat heat exchange tube and the plate-like fin, brazing can be facilitated and the reliability of the brazed portion can be improved.
【００３４】（３）請求項６記載の発明によれば、板状
フィンの挿通孔の開口縁に、隣接する板状フィンに当接
する起立片を形成することにより、多数配置される板状
フィンを所定の間隔で位置決めすることができると共
に、隣接する板状フィン間の間隔を一定の寸法に維持す
ることができる。また、板状フィンと偏平状熱交換管と
の接触面積を増大させることができ、板状フィンと偏平
状熱交換管の密着性の向上を図ることができる。(3) According to the sixth aspect of the present invention, a plurality of plate-shaped fins are arranged at the opening edge of the insertion hole of the plate-shaped fins by forming upstanding pieces which contact the adjacent plate-shaped fins. Can be positioned at predetermined intervals, and the interval between adjacent plate-like fins can be maintained at a constant size. Further, the contact area between the plate-shaped fin and the flat heat exchange tube can be increased, and the adhesion between the plate-shaped fin and the flat heat exchange tube can be improved.
【図１】この発明の熱交換器の一例を示す斜視図であ
る。FIG. 1 is a perspective view showing an example of a heat exchanger of the present invention.
【図２】図１の熱交換器の要部を示す斜視図である。FIG. 2 is a perspective view showing a main part of the heat exchanger of FIG.
【図３】図２の正面図である。FIG. 3 is a front view of FIG. 2;
【図４】図３のＡ−Ａ線に沿う断面図（ａ）及び（ａ）
のＢ部の拡大断面図（ｂ）である。4A and 4A are cross-sectional views taken along line AA in FIG.
5B is an enlarged sectional view (b) of a portion B of FIG.
【図５】この発明における板状フィンに設けられる挿通
孔及び起立片を示す斜視図である。FIG. 5 is a perspective view showing an insertion hole and a standing piece provided in a plate-like fin according to the present invention.
【図６】この発明における挿通孔内に偏平状熱交換管を
挿入する状態を示す概略正面図（ａ）及び挿通孔と偏平
状熱交換管を密着させた状態の概略正面図（ｂ）であ
る。FIGS. 6A and 6B are a schematic front view showing a state where a flat heat exchange tube is inserted into an insertion hole and a schematic front view showing a state where the insertion hole and the flat heat exchange tube are in close contact with each other in the present invention. is there.
【図７】この発明における挿通孔内に偏平状熱交換管を
挿入する別の状態を示す概略正面図（ａ）及び挿通孔と
偏平状熱交換管を密着させた状態の概略正面図（ｂ）で
ある。FIG. 7A is a schematic front view showing another state in which the flat heat exchange tube is inserted into the insertion hole according to the present invention, and FIG. 7B is a schematic front view showing the state in which the insertion hole and the flat heat exchange tube are brought into close contact with each other. ).
【図８】この発明における挿通孔内に偏平状熱交換管を
挿入する更に別の状態を示す概略正面図（ａ）及び挿通
孔と偏平状熱交換管を密着させた状態の概略正面図
（ｂ）である。FIG. 8A is a schematic front view showing still another state in which the flat heat exchange tube is inserted into the insertion hole according to the present invention, and FIG. 8B is a schematic front view showing a state in which the insertion hole and the flat heat exchange tube are in close contact with each other. b).
【図９】従来の熱交換器を示す斜視図である。FIG. 9 is a perspective view showing a conventional heat exchanger.
【図１０】従来の熱交換器の組立状態を示す分解斜視図
である。FIG. 10 is an exploded perspective view showing an assembled state of a conventional heat exchanger.
【図１１】従来の熱交換器における板状フィンに偏平状
熱交換管を挿入する状態を示す概略側面図である。FIG. 11 is a schematic side view showing a state in which a flat heat exchange tube is inserted into a plate-like fin in a conventional heat exchanger.
１ 板状フィン ２ 挿通孔 ３，３Ａ 偏平状熱交換管 １０ 起立片 １１ アルミニウム合金層 １２ 中心線 ２１，３１ 辺 ２２，３２ 勾配 DESCRIPTION OF SYMBOLS 1 Plate-shaped fin 2 Insertion hole 3, 3A Flat heat exchange tube 10 Standing piece 11 Aluminum alloy layer 12 Center line 21, 31 Side 22, 32 Slope
───────────────────────────────────────────────────── フロントページの続き (72)発明者 大野 昭自 静岡県庵原郡蒲原町蒲原１丁目34番１号 日本軽金属株式会社グループ技術センター 内 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Akino Ohno 1-34-1, Kambara, Kambara-cho, Anbara-gun, Shizuoka Prefecture Nippon Light Metal Corporation Group Technology Center
Claims (6)
フィンと、これら板状フィンに設けられた挿通孔を貫通
する複数の偏平状熱交換管とを具備する熱交換器を製造
するに当って、 上記板状フィンの挿通孔をテーパ状長孔にて形成し、 上記偏平状熱交換管の断面形状を、上記挿通孔の狭小テ
ーパ部に嵌合し得るテーパ状に形成し、 上記挿通孔の拡開テーパ部側に上記偏平状熱交換管を挿
入した後、板状フィンと偏平状熱交換管とを相対的に移
動して、偏平状熱交換管を挿通孔の狭小テーパ部に密着
させる、ことを特徴とする熱交換器の製造方法。1. A heat exchanger comprising a plurality of plate-like fins arranged at appropriate intervals and a plurality of flat heat-exchange tubes penetrating through insertion holes provided in these plate-like fins. In the meantime, the insertion hole of the plate-shaped fin is formed by a tapered long hole, and the cross-sectional shape of the flat heat exchange tube is formed in a tapered shape capable of fitting into the narrow tapered portion of the insertion hole. After inserting the flat heat exchange tube into the expanded tapered portion side of the insertion hole, the plate-shaped fin and the flat heat exchange tube are relatively moved, and the flat heat exchange tube is inserted into the narrow taper of the insertion hole. A method for producing a heat exchanger, comprising:
フィンと、これら板状フィンに設けられた挿通孔を貫通
する複数の偏平状熱交換管とを具備する熱交換器を製造
するに当って、 上記板状フィンの挿通孔をテーパ状長孔にて形成し、 上記偏平状熱交換管の断面形状を、上記挿通孔の狭小テ
ーパ部に嵌合し得る偏平状に形成し、 上記挿通孔の拡開テーパ部側に上記偏平状熱交換管を挿
入した後、板状フィンと偏平状熱交換管とを相対的に移
動して、偏平状熱交換管を挿通孔の狭小テーパ部に密着
させる、ことを特徴とする熱交換器の製造方法。2. A heat exchanger comprising: a plurality of plate-like fins arranged at appropriate intervals; and a plurality of flat heat-exchange tubes penetrating through insertion holes provided in these plate-like fins. In the meantime, the insertion hole of the plate-shaped fin is formed by a tapered long hole, and the cross-sectional shape of the flat heat exchange tube is formed to be a flat shape that can be fitted to the narrow tapered portion of the insertion hole, After inserting the flat heat exchange tube into the expanded tapered portion side of the insertion hole, the plate-shaped fin and the flat heat exchange tube are relatively moved, and the flat heat exchange tube is inserted into the narrow taper of the insertion hole. A method for producing a heat exchanger, comprising:
法において、 上記偏平状熱交換管及び板状フィンをアルミニウム合金
製部材にて形成すると共に、上記偏平状熱交換管又は板
状フィンのうちの少なくとも一方の表面に、この偏平状
熱交換管及び板状フィンよりも融点の低いアルミニウム
合金層を形成して、偏平状熱交換管と板状フィンとをろ
う付けすることを特徴とする熱交換器の製造方法。3. The method for manufacturing a heat exchanger according to claim 1, wherein the flat heat exchange tube and the plate-like fin are formed of an aluminum alloy member, and the flat heat exchange tube or the plate-like fin is formed of an aluminum alloy member. An aluminum alloy layer having a lower melting point than the flat heat exchange tube and the plate-like fin is formed on at least one surface of the fins, and the flat heat exchange tube and the plate-like fin are brazed. Method of manufacturing a heat exchanger.
フィンと、これら板状フィンに設けられた挿通孔を貫通
する複数の偏平状熱交換管とを具備する熱交換器におい
て、 上記板状フィンの挿通孔をテーパ状長孔にて形成し、 上記偏平状熱交換管を、上記挿通孔の狭小テーパ部に密
着するテーパ状に形成してなる、ことを特徴とする熱交
換器。4. A heat exchanger comprising: a plurality of plate-like fins arranged at appropriate intervals; and a plurality of flat heat-exchange tubes penetrating through insertion holes provided in these plate-like fins. The heat exchanger characterized in that the insertion hole of the plate-like fin is formed by a tapered long hole, and the flat heat exchange tube is formed in a tapered shape which is in close contact with a narrow tapered portion of the insertion hole. .
フィンと、これら板状フィンに設けられた挿通孔を貫通
する複数の偏平状熱交換管とを具備する熱交換器におい
て、 上記板状フィンの挿通孔をテーパ状長孔にて形成し、 上記偏平状熱交換管を、上記挿通孔の狭小テーパ部に密
着する偏平状に形成してなる、ことを特徴とする熱交換
器。5. A heat exchanger comprising: a plurality of plate-like fins arranged at appropriate intervals; and a plurality of flat heat-exchange tubes penetrating through insertion holes provided in these plate-like fins. The heat exchanger characterized in that the insertion hole of the plate-like fin is formed by a tapered long hole, and the flat heat exchange tube is formed in a flat shape in close contact with a narrow taper portion of the insertion hole. .
て、 上記板状フィンの挿通孔の開口縁に、隣接する板状フィ
ンに当接する起立片を形成してなる、ことを特徴とする
熱交換器。6. The heat exchanger according to claim 4, wherein an upright piece is formed at an opening edge of the insertion hole of the plate-like fin so as to contact an adjacent plate-like fin. Heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21197696A JPH1038487A (en) | 1996-07-23 | 1996-07-23 | Heat exchanger and its manufacture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21197696A JPH1038487A (en) | 1996-07-23 | 1996-07-23 | Heat exchanger and its manufacture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH1038487A true JPH1038487A (en) | 1998-02-13 |
Family
ID=16614833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21197696A Withdrawn JPH1038487A (en) | 1996-07-23 | 1996-07-23 | Heat exchanger and its manufacture |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH1038487A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002206890A (en) * | 2001-01-11 | 2002-07-26 | Mitsubishi Electric Corp | Heat exchanger, and freezing air-conditioning cycle device using it |
| JP2008116101A (en) * | 2006-11-02 | 2008-05-22 | Denso Corp | Heat exchanger |
| JP2015117874A (en) * | 2013-12-18 | 2015-06-25 | 日本軽金属株式会社 | Fin and tube type heat exchanger and method of manufacturing the same |
| JP2016044841A (en) * | 2014-08-20 | 2016-04-04 | 日本軽金属株式会社 | Fin and tube type heat exchanger and manufacturing method thereof |
| JPWO2018003091A1 (en) * | 2016-06-30 | 2019-02-28 | 三菱電機株式会社 | Heat exchanger and refrigeration cycle apparatus including the same |
| WO2020174557A1 (en) * | 2019-02-26 | 2020-09-03 | 三菱電機株式会社 | Layered header, heat exchanger, and manufacturing method for heat exchanger |
| WO2022014516A1 (en) * | 2020-07-17 | 2022-01-20 | ダイキン工業株式会社 | Heat exchanger |
| WO2022080654A1 (en) * | 2020-10-12 | 2022-04-21 | Lg Electronics Inc. | Refrigerator |
-
1996
- 1996-07-23 JP JP21197696A patent/JPH1038487A/en not_active Withdrawn
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002206890A (en) * | 2001-01-11 | 2002-07-26 | Mitsubishi Electric Corp | Heat exchanger, and freezing air-conditioning cycle device using it |
| JP2008116101A (en) * | 2006-11-02 | 2008-05-22 | Denso Corp | Heat exchanger |
| JP2015117874A (en) * | 2013-12-18 | 2015-06-25 | 日本軽金属株式会社 | Fin and tube type heat exchanger and method of manufacturing the same |
| JP2016044841A (en) * | 2014-08-20 | 2016-04-04 | 日本軽金属株式会社 | Fin and tube type heat exchanger and manufacturing method thereof |
| JPWO2018003091A1 (en) * | 2016-06-30 | 2019-02-28 | 三菱電機株式会社 | Heat exchanger and refrigeration cycle apparatus including the same |
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| WO2022014516A1 (en) * | 2020-07-17 | 2022-01-20 | ダイキン工業株式会社 | Heat exchanger |
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| WO2022080654A1 (en) * | 2020-10-12 | 2022-04-21 | Lg Electronics Inc. | Refrigerator |
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