JPH1089870A - Manufacture of heat exchanger and heat exchanger - Google Patents
Manufacture of heat exchanger and heat exchangerInfo
- Publication number
- JPH1089870A JPH1089870A JP8267888A JP26788896A JPH1089870A JP H1089870 A JPH1089870 A JP H1089870A JP 8267888 A JP8267888 A JP 8267888A JP 26788896 A JP26788896 A JP 26788896A JP H1089870 A JPH1089870 A JP H1089870A
- Authority
- JP
- Japan
- Prior art keywords
- plate
- heat exchange
- exchange tube
- flat heat
- heat exchanger
- 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- Withdrawn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
Classifications
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
- F28D1/053—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
- F28D1/0535—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight the conduits having a non-circular cross-section
- F28D1/05366—Assemblies of conduits connected to common headers, e.g. core type radiators
- F28D1/05383—Assemblies of conduits connected to common headers, e.g. core type radiators with multiple rows of conduits or with multi-channel conduits
-
- 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
- F28F1/02—Tubular elements of cross-section which is non-circular
- F28F1/022—Tubular elements of cross-section which is non-circular with multiple channels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2215/00—Fins
- F28F2215/12—Fins with U-shaped slots for laterally inserting conduits
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Geometry (AREA)
- 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12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 Conventionally, as a heat exchanger of this type, as shown in FIG. 12, 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13及び図14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
ろう付や接着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. 13 and 14, a plate-like fin a having an insertion hole b is formed by a jig opposed to the plate-like fin a. 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, bonding 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14
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、これら板状フィンを交差状に貫
通する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、 上記板状フィンに、この板状フィンの一辺
から内方に向かって漸次狭小となる挿通溝を形成し、
上記偏平状熱交換管の断面形状を、上記挿通溝の狭小部
に嵌合し得るテーパ状に形成し、 上記挿通溝の拡開部
側に上記偏平状熱交換管の狭小部を挿入した後、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
交換管を挿通溝の狭小部に密着させる、ことを特徴とす
る。In order to achieve the above object, according to the present invention, a plurality of plate-shaped fins arranged at appropriate intervals and a flat fin penetrating these plate-shaped fins in an intersecting manner are provided. In manufacturing a heat exchanger including a heat exchanger tube, the plate-like fin is formed with an insertion groove that gradually narrows inward from one side of the plate-like fin,
The cross-sectional shape of the flat heat exchange tube is formed in a tapered shape that can fit into the narrow portion of the insertion groove, and after the narrow portion of the flat heat exchange tube is inserted into the expanded portion side of the insertion groove. The plate-like fin and the flat heat exchange tube are relatively moved to bring the flat heat exchange tube into close contact with the narrow portion of the insertion groove.
【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、これら板状フィンを交
差状に貫通する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、 上記板状フィンに、この板状フィ
ンの一辺から内方に向かって漸次狭小となる挿通溝を形
成し、 上記偏平状熱交換管の断面形状を、上記挿通溝
の狭小部に嵌合し得る偏平状に形成し、 上記挿通溝の
拡開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
換管を挿通溝の狭小部に密着させる、ことを特徴とす
る。According to a second aspect of the present invention, there is provided a heat exchanger having a plurality of plate-like fins arranged at appropriate intervals and a flat heat-exchange tube passing through the plate-like fins in an intersecting manner. In doing so, an insertion groove that gradually narrows inward from one side of the plate fin is formed in the plate fin, and the cross-sectional shape of the flat heat exchange tube is reduced to a narrow portion of the insertion groove. After the flat heat exchange tube is inserted into the expanded portion side of the insertion groove, the plate fin and the flat heat exchange tube are relatively moved to form a flat shape. The heat exchanger tube is brought into close contact with the narrow portion of the insertion groove.
【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、これら板状フィンを交
差状に貫通する偏平状熱交換管とを具備する熱交換器に
おいて、 上記板状フィンに、この板状フィンの一辺か
ら内方に向かって漸次狭小となる挿通溝を形成し、 上
記偏平状熱交換管を、上記挿通溝の狭小部に密着するテ
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 is provided a heat exchanger including a plurality of plate-like fins arranged at appropriate intervals and a flat heat exchange tube penetrating the plate-like fins in an intersecting manner. The plate-shaped fin is formed with an insertion groove that gradually narrows inward from one side of the plate-shaped fin, and the flat heat exchange tube is formed in a tapered shape that is in close contact with a narrow portion of the insertion groove. It is characterized by that.
【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、これら板状フィンを交
差状に貫通する偏平状熱交換管とを具備する熱交換器に
おいて、 上記板状フィンに、この板状フィンの一辺か
ら内方に向かって漸次狭小となる挿通溝を形成し、 上
記偏平状熱交換管を、上記挿通溝の狭小部に密着する偏
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 is provided a heat exchanger comprising a plurality of plate-like fins arranged at appropriate intervals and a flat heat exchange tube penetrating the plate-like fins in an intersecting manner. The plate-shaped fin is formed with an insertion groove that gradually narrows inward from one side of the plate-shaped fin, and the flat heat exchange tube is formed in a flat shape that is in close contact with a narrow portion of the insertion groove. It is characterized by that.
【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、 上記板状フィンの対向する両
辺にそれぞれ交互に挿通溝を形成し、 上記挿通溝内に
それぞれ上記偏平状熱交換管を密着してなる、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, the insertion grooves are formed alternately on both sides of the plate-shaped fin opposite to each other, and the flattened shapes are respectively formed in the insertion grooves. It is characterized in that a heat exchange tube is closely attached.
【0013】請求項7記載の発明は、請求項4又は5記
載の熱交換器において、 上記板状フィンの対向する両
辺の対向する部位に挿通溝を形成し、 上記挿通溝内に
それぞれ上記偏平状熱交換管を密着してなる、ことを特
徴とする。According to a seventh aspect of the present invention, in the heat exchanger according to the fourth or fifth aspect, an insertion groove is formed in a portion of the plate-like fin opposite to both sides of the plate-shaped fin, and the flattened portion is formed in each of the insertion grooves. Characterized in that the heat exchanger tubes are in close contact with each other.
【0014】請求項8記載の発明は、請求項4ないし7
のいずれかに記載の熱交換器において、 上記板状フィ
ンの挿通溝の開口縁に、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。[0014] The invention according to claim 8 is the invention according to claims 4 to 7.
The heat exchanger according to any one of the above, characterized in that an upstanding piece that comes into contact with an adjacent plate-like fin is formed at an opening edge of the insertion groove of the plate-like fin.
【0015】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溝の拡開部側に偏平状
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溝の狭小部
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溝内に挿
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 insertion groove side of the insertion groove provided in the plate fin, the flat fin and the flat heat exchange tube are inserted. The flat heat exchange tubes can be inserted into the flat fins without deforming the flat fins by moving the heat exchange tubes relative to each other so that the flat heat exchange tubes can be in close contact with the narrow portions of the insertion grooves. A heat exchanger that can be inserted into the groove and has good heat exchange efficiency can be manufactured very easily.
【0016】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.
【0017】請求項6及び7記載の発明によれば、板状
フィンの対向する両辺に設けられた挿通溝に、偏平状熱
交換管を交差状に挿入することができるので、板状フィ
ンと偏平状熱交換管との左右のバランスを保つことがで
き、熱交換効率の均一化を図ることができる。According to the sixth and seventh aspects of the present invention, the flat heat exchange tubes can be inserted into the insertion grooves provided on both opposite sides of the plate-like fin in an intersecting manner. The right and left balance with the flat heat exchange tube can be maintained, and the heat exchange efficiency can be made uniform.
【0018】請求項8記載の発明によれば、板状フィン
の挿通溝の開口縁に、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
管の密着性の向上及び熱交換器の強度の向上を図ること
ができる。According to the eighth aspect of the present invention, a plurality of plate-shaped fins are arranged in a predetermined manner at the opening edges of the insertion grooves of the plate-shaped fins by forming upstanding pieces abutting on 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, and the strength of the heat exchanger can be improved.
【0019】[0019]
【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.
【0020】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.
【0021】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
られたテーパ付き挿通溝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。The heat exchanger has a plurality of plate-shaped fins 1 arranged at appropriate intervals and a plurality of parallel tapered flats penetrating through tapered insertion grooves 2 provided in these plate-shaped fins 1. The heat exchanger tube 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 exchanger tube 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.
【0022】この場合、板状フィン1に設けられる挿通
溝2は、図3に示すように、板状フィン1の一辺に開口
し、この一辺から内方側に向かって漸次狭小となる形状
に形成されている。すなわち、挿通溝2は、開口側端部
が拡開部2aを有し、他端部が狭小部2bを有するテー
パ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、上記挿通溝2の狭小部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, the insertion groove 2 provided in the plate-like fin 1 has an opening at one side of the plate-like fin 1 and gradually becomes narrower from this one side toward the inside. Is formed. That is, the insertion groove 2 is formed in a tapered shape having an enlarged portion 2a at the opening end and a narrowed portion 2b at the other end. The cross-sectional shape of the flat heat exchange tube 3 is formed in a tapered shape capable of closely adhering to the narrow portion 2 b side of the insertion groove 2. The flat heat exchange tube 3 has a plurality of passages 7 defined by a plurality of reinforcing walls 6.
【0023】また、板状フィン1の挿通溝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との密着性の向上及び熱交換
器の強度の向上が図れるようになっている。A pair of upstanding pieces 1 are provided on both sides of the opening edge of the insertion groove 2 of the plate-like fin 1 facing each other, 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. Has a positioning function of maintaining the temperature of the heat exchanger constant, and an improvement in the adhesion to the flat heat exchange pipe 3 and an improvement in the strength of the heat exchanger.
【0024】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 tube 3 are formed of an extruded aluminum alloy material, and the plate fins 1 are formed of an aluminum alloy plate material. Have been.
【0025】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溝2と
同様なテーパ付き挿通溝が設けられている。To assemble the heat exchanger constructed as described above, first, a predetermined number of plate-like 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 groove similar to the tapered insertion groove 2 provided on the plate-like fin 1.
【0026】次に、図6(a)に示すように、挿通溝2
の拡開部2a側内に偏平状熱交換管3の狭小部3bを挿
入する。各挿通溝2の拡開部2a内に偏平状熱交換管3
の狭小部3b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、すなわち挿通溝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の狭小部3bを挿通溝2の狭小部2b側に移動
し、偏平状熱交換管3を挿通溝2の狭小部2b側に密着
させる(図6(b)参照)。この場合、挿通溝2の拡開
部2aと偏平状熱交換管3の拡開部3aも密着状態とな
る。Next, as shown in FIG.
The narrow portion 3b of the flat heat exchange tube 3 is inserted into the widened portion 2a side. A flat heat exchange tube 3 is provided in the expanded portion 2a of each insertion groove 2.
After the narrow portion 3b is inserted, the plate-shaped fin 1 and the flat heat exchange tube 3 are relatively moved, that is, are moved in the longitudinal direction of the insertion groove 2 and the flat heat exchange tube 3, so that the flat heat The narrow portion 3b of the exchange tube 3 is moved to the narrow portion 2b side of the insertion groove 2, and the flat heat exchange tube 3 is brought into close contact with the narrow portion 2b side of the insertion groove 2 (see FIG. 6B). In this case, the expanded portion 2a of the insertion groove 2 and the expanded portion 3a of the flat heat exchange tube 3 also come into close contact with each other.
【0027】上記のようにして、板状フィン1の挿通溝
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 tubes 3 are inserted into the insertion grooves 2 of the plate-like fins 1 as described above, the flat heat exchange tubes 3 are inserted into the insertion holes (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.
【0028】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-like 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.
【0029】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.
【0030】上記実施形態では、挿通溝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と挿通溝2の辺2
1とを沿わせて偏平状熱交換管3の狭小部3bを挿入
し、その後、狭小部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 groove 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 manner, the lower side 31 of the flat heat exchange tube 3 and the side 2 of the insertion groove 2
1, the narrow portion 3b of the flat heat exchange tube 3 can be inserted and then moved to the narrow portion 2b side, so that the assembling work of the heat exchanger can be further facilitated. The connection between the plate-like fin 1 and the flat heat exchange tube 3 can be stabilized.
【0031】また、上記実施形態では、偏平状熱交換管
3の断面形状が挿通溝2の狭小部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、挿通溝2(この場合、上辺に勾配を有する
テーパ状挿通溝を示す)の狭小部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。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 portion 2b of the insertion groove 2 has been described. It is not necessary to have a tapered shape. For example, as shown in FIG. 8, upper and lower sides that can be fitted into the narrow portion 2b of the insertion groove 2 (in this case, a tapered insertion groove having a slope on the upper side) are formed. It may be a parallel flat heat exchange tube 3A.
【0032】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、挿通溝2の拡開部2a側内に偏平
状熱交換管3Aを挿入する。各挿通溝2の拡開部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、すなわち挿通溝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を挿通溝2の狭小部2b側に移
動し、偏平状熱交換管3Aを挿通溝2の狭小部2b側に
密着させる(図8(b)参照)。なお、偏平状熱交換管
3Aをテーパ状挿通溝2内に挿入する場合、挿通溝2の
拡開部2aと偏平状熱交換管3Aとの間に隙間が生じる
が、この隙間は僅かな隙間であるため、ろう付時のろう
材の毛細管現象によって閉塞できる。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 groove 2 inside the expanded portion 2a. After inserting the flat heat exchange tube 3A into the enlarged portion 2a of each insertion groove 2, the plate-like fin 1 and the flat heat exchange tube 3A move relatively, that is, the insertion groove 2 and the flat heat exchange tube 3A. 8, the flat heat exchange tube 3A is moved to the narrow portion 2b side of the insertion groove 2, and the flat heat exchange tube 3A is brought into close contact with the narrow portion 2b side of the insertion groove 2 (FIG. 8). (B)). When the flat heat exchange tube 3A is inserted into the tapered insertion groove 2, a gap is formed between the expanded portion 2a of the insertion groove 2 and the flat heat exchange tube 3A. Therefore, it can be closed by the capillary action of the brazing material at the time of brazing.
【0033】また、上記実施形態では、板状フィン1の
一辺側に開口する挿通溝2内に偏平状熱交換管3,3A
を挿入する場合について説明したが、必しも板状フィン
1の一辺側のみに開口する挿通溝2内に偏平状熱交換管
3,3Aを挿入するものに限られるものではなく、板状
フィン2の対向する二辺にそれぞれ挿通溝2を設け、そ
れぞれの挿通溝2内に偏平状熱交換管3,3Aを挿入す
るようにしてもよい。In the above-described embodiment, the flat heat exchange tubes 3 and 3A are inserted into the insertion grooves 2 that open on one side of the plate-like fins 1.
Has been described, but the invention is not limited to the case where the flat heat exchange tubes 3 and 3A are inserted into the insertion grooves 2 which are opened only on one side of the plate-like fins 1. Alternatively, the insertion grooves 2 may be provided on two opposing sides of the heat exchanger 2, and the flat heat exchange tubes 3 and 3A may be inserted into the respective insertion grooves 2.
【0034】この場合、図9(a)に示すように、板状
フィン1の対向する辺から内方に向かって漸次狭小とな
るテーパ状の挿通溝2を交互に設け、それぞれの挿通溝
2の拡開部2a側にテーパ状の偏平状熱交換管3の狭小
部3bを挿入した後、偏平状熱交換管3の狭小部3bを
挿通溝2の狭小部2b側に移動して密着させる(図9
(b)参照)。あるいは、図10(a)に示すように、
板状フィン1の対向する辺から内方に向かって漸次狭小
となる平行辺21と勾配22を有するテーパ状挿通溝2
を設け、この挿通溝2内に平行辺31と勾配32を有す
る偏平状熱交換管3又は上下辺が平行な偏平状熱交換管
3Aを挿入する(図10(b),(c)参照)。In this case, as shown in FIG. 9A, tapered insertion grooves 2 gradually narrowing inward from opposite sides of the plate-like fin 1 are provided alternately. After the narrow portion 3b of the tapered flat heat exchange tube 3 is inserted into the widened portion 2a side, the narrow portion 3b of the flat heat exchange tube 3 is moved toward the narrow portion 2b of the insertion groove 2 to be in close contact therewith. (FIG. 9
(B)). Alternatively, as shown in FIG.
Tapered insertion groove 2 having a parallel side 21 and a slope 22 gradually narrowing inward from the opposite side of plate-like fin 1
And a flat heat exchange tube 3 having a parallel side 31 and a slope 32 or a flat heat exchange tube 3A having upper and lower sides parallel to each other is inserted into the insertion groove 2 (see FIGS. 10B and 10C). .
【0035】また、図11(a)に示すように、板状フ
ィン1の対向する両辺の対向する部位にそれぞれ挿通溝
2(この場合、テーパ状挿通溝を示す)を設けて、それ
ぞれの挿通溝2内に偏平状熱交換管3を挿入するように
してもよい(図11(b)参照)。なお、図11におい
て、挿通溝2を平行辺21と勾配22を有するテーパ状
に形成し、偏平状熱交換管3を平行辺31と勾配32を
有するテーパ状あるいは上下辺が平行な偏平状熱交換管
3Aとしてもよい。As shown in FIG. 11 (a), insertion grooves 2 (in this case, tapered insertion grooves are provided) are provided at opposing portions of both opposing sides of the plate-like fin 1 so that each insertion The flat heat exchange tube 3 may be inserted into the groove 2 (see FIG. 11B). In FIG. 11, the insertion groove 2 is formed in a tapered shape having a parallel side 21 and a slope 22, and the flat heat exchange tube 3 is formed into a tapered shape having a parallel side 31 and a slope 32 or a flat heat exchange pipe whose upper and lower sides are parallel. The exchange pipe 3A may be used.
【0036】なお、上記説明では、板状フィン1の挿通
溝2間が平坦状になっているが、板状フィン1の挿通溝
2間に、挿通溝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 grooves 2 of the plate-like fins 1 is flat, but the space between the insertion grooves 2 of the plate-like fins 1 is substantially perpendicular to the longitudinal direction of the insertion grooves 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.
【0037】[0037]
【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.
【0038】(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溝の拡開部側に
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溝の
狭小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溝
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 expanded portion side of the insertion groove provided in the plate fin, the plate fin is inserted. And the flat heat exchange tube can be moved relatively to make the flat heat exchange tube adhere to the narrow portion of the insertion groove, so that the flat heat exchange tube can be The heat exchanger can be inserted into the insertion groove of the fin, and a heat exchanger having good heat exchange efficiency can be obtained, and this heat exchanger can be manufactured very easily.
【0039】(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.
【0040】(3)請求項6又は7記載の発明によれ
ば、板状フィンの対向する両辺に設けられた挿通溝に、
偏平状熱交換管を交差状に挿入することができるので、
板状フィンと偏平状熱交換管との左右のバランスを保つ
ことができ、熱交換効率の均一化を図ることができる。(3) According to the invention as set forth in claim 6 or 7, the insertion grooves provided on both opposite sides of the plate-like fin are provided with:
Since flat heat exchange tubes can be inserted in a cross shape,
The left and right balance between the plate-like fin and the flat heat exchange tube can be maintained, and the heat exchange efficiency can be made uniform.
【0041】(4)請求項8記載の発明によれば、板状
フィンの挿通溝の開口縁に、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及び熱交換器の強度の向上を
図ることができる。(4) According to the eighth aspect of the present invention, a plurality of plate-shaped fins are arranged at the opening edges of the insertion grooves of the plate-shaped fins by forming upstanding pieces abutting on 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, and the strength of the heat exchanger 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
溝及び起立片を示す斜視図である。FIG. 5 is a perspective view showing an insertion groove 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溝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)及び挿通溝と偏平
状熱交換管を密着させた状態の概略正面図(b)であ
る。FIG. 6 is a schematic front view (a) showing a state where a flat heat exchange tube is inserted into an insertion groove and a schematic front view (b) showing a state where the insertion groove 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溝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)及び挿通溝と
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 groove according to the present invention, and FIG. 7B is a schematic front view showing the state in which the insertion groove 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溝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
溝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 groove according to the present invention, and FIG. 8B is a schematic front view showing a state where the insertion groove and the flat heat exchange tube are in close contact with each other. b).
【図9】この発明における挿通溝を板状フィンの対向す
る両辺に設けた場合の挿通溝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)及び挿通溝と偏平状熱
交換管を密着させた状態の概略正面図(b)である。FIG. 9 is a schematic front view (a) showing a state in which a flat heat exchange tube is inserted into the insertion groove when the insertion groove according to the present invention is provided on both opposite sides of the plate-like fin, and the insertion groove and the flat heat; It is a schematic front view (b) of the state which made the exchange tube contact.
【図10】この発明における挿通溝を板状フィンの対向
する両辺に設けた場合の挿通溝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)、挿通溝と偏平
状熱交換管を密着させた状態の概略正面図(b)及び
(b)の変形例を示す概略正面図(c)である。FIG. 10 is a schematic front view showing another state in which the flat heat exchange tubes are inserted into the insertion grooves when the insertion grooves in the present invention are provided on both opposing sides of the plate-like fin, and FIG. It is a schematic front view (b) of a state in which the heat exchanger tubes are in close contact with each other, and a schematic front view (c) showing a modified example of (b).
【図11】この発明における挿通溝を板状フィンの対向
する両辺に設けた場合の挿通溝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)及び挿通溝
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. 11 is a schematic front view showing still another state in which a flat heat exchange tube is inserted into the insertion groove when the insertion groove according to the present invention is provided on both opposing sides of the plate-like fin, and FIG. Schematic front view of the state where the flat heat exchange tubes are in close contact (b)
It is.
【図12】従来の熱交換器を示す斜視図である。FIG. 12 is a perspective view showing a conventional heat exchanger.
【図13】従来の熱交換器の組立状態を示す分解斜視図
である。FIG. 13 is an exploded perspective view showing an assembled state of a conventional heat exchanger.
【図14】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. 14 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 挿通溝 2a 挿通溝2の拡開部 2b 挿通溝2の狭小部 3,3A 偏平状熱交換管 3a 偏平状熱交換管3の拡開部 3b 偏平状熱交換管3の狭小部 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 groove 2a Expanding part of insertion groove 2 2b Narrow part of insertion groove 2 3, 3A Flat heat exchange tube 3a Expansion part of flat heat exchange tube 3 3b Narrowness of flat heat exchange tube 3 Part 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 古牧 正行 静岡県庵原郡蒲原町蒲原161 日本軽金属 株式会社蒲原熱交製品工場内 (72)発明者 田中 庸彦 静岡県庵原郡蒲原町蒲原161 日本軽金属 株式会社蒲原熱交製品工場内 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Masayuki Komaki 161 Kambara, Kambara-cho, Abara-gun, Shizuoka Japan Nippon Light Metal Co., Ltd. Inside the Kambara Heat Exchange Products Factory (72) Inventor Yasuhiko Tanaka 161 Kambara, Kambara-cho, Ahara-gun, Shizuoka Japan Light Metal Co., Ltd.
Claims (8)
フィンと、これら板状フィンを交差状に貫通する偏平状
熱交換管とを具備する熱交換器を製造するに当って、 上記板状フィンに、この板状フィンの一辺から内方に向
かって漸次狭小となる挿通溝を形成し、 上記偏平状熱交換管の断面形状を、上記挿通溝の狭小部
に嵌合し得るテーパ状に形成し、 上記挿通溝の拡開部側に上記偏平状熱交換管の狭小部を
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溝の狭小部に密着させ
る、ことを特徴とする熱交換器の製造方法。In manufacturing a heat exchanger including a plurality of plate-like fins arranged at appropriate intervals and a flat heat exchange tube penetrating the plate-like fins in an intersecting manner, In the plate-shaped fin, an insertion groove that gradually narrows inward from one side of the plate-shaped fin is formed, and the cross-sectional shape of the flat heat exchange tube is tapered so as to fit into the narrow portion of the insertion groove. After inserting the narrow portion of the flat heat exchange tube into the expanded portion side of the insertion groove, the plate-shaped fin and the flat heat exchange tube are relatively moved to form a flat heat exchange tube. A method for manufacturing a heat exchanger, comprising: bringing a tube into close contact with a narrow portion of an insertion groove.
フィンと、これら板状フィンを交差状に貫通する偏平状
熱交換管とを具備する熱交換器を製造するに当って、 上記板状フィンに、この板状フィンの一辺から内方に向
かって漸次狭小となる挿通溝を形成し、 上記偏平状熱交換管の断面形状を、上記挿通溝の狭小部
に嵌合し得る偏平状に形成し、 上記挿通溝の拡開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溝の狭小部に密着させる、こ
とを特徴とする熱交換器の製造方法。2. In manufacturing a heat exchanger including a plurality of plate-like fins arranged at appropriate intervals and a flat heat exchange tube penetrating the plate-like fins in an intersecting manner, In the plate-shaped fin, an insertion groove that gradually narrows inward from one side of the plate-shaped fin is formed, and the cross-sectional shape of the flat heat exchange tube can be fitted into a narrow portion of the insertion groove. After inserting the flat heat exchange tube on the expanded portion side of the insertion groove, the plate-shaped fin and the flat heat exchange tube are relatively moved to insert the flat heat exchange tube. A method for manufacturing a heat exchanger, wherein the heat exchanger is brought into close contact with a narrow portion of a groove.
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、これら板状フィンを交差状に貫通する偏平状
熱交換管とを具備する熱交換器において、 上記板状フィンに、この板状フィンの一辺から内方に向
かって漸次狭小となる挿通溝を形成し、 上記偏平状熱交換管を、上記挿通溝の狭小部に密着する
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 flat heat exchange tube penetrating the plate-like fins in an intersecting manner. An insertion groove that gradually narrows inward from one side of the plate-like fin is formed, and the flat heat exchange tube is formed in a tapered shape that is in close contact with a narrow portion of the insertion groove. And heat exchanger.
フィンと、これら板状フィンを交差状に貫通する偏平状
熱交換管とを具備する熱交換器において、 上記板状フィンに、この板状フィンの一辺から内方に向
かって漸次狭小となる挿通溝を形成し、 上記偏平状熱交換管を、上記挿通溝の狭小部に密着する
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 flat heat exchange tube penetrating the plate-like fins in an intersecting manner. An insertion groove that gradually narrows inward from one side of the plate-like fin is formed, and the flat heat exchange tube is formed in a flat shape that is in close contact with a narrow portion of the insertion groove. And heat exchanger.
て、 上記板状フィンの対向する両辺にそれぞれ交互に挿通溝
を形成し、 上記挿通溝内にそれぞれ上記偏平状熱交換管を密着して
なる、ことを特徴とする熱交換器。6. The heat exchanger according to claim 4, wherein insertion grooves are formed alternately on opposite sides of the plate-like fins, and the flat heat exchange tubes are closely fitted in the insertion grooves. A heat exchanger characterized by the following.
て、 上記板状フィンの対向する両辺の対向する部位に挿通溝
を形成し、 上記挿通溝内にそれぞれ上記偏平状熱交換管を密着して
なる、ことを特徴とする熱交換器。7. The heat exchanger according to claim 4, wherein an insertion groove is formed in a portion of the plate-shaped fin opposite to both sides of the plate-shaped fin, and the flat heat exchange tubes are closely fitted in the insertion groove, respectively. A heat exchanger, comprising:
交換器において、 上記板状フィンの挿通溝の開口縁に、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。8. The heat exchanger according to claim 4, wherein an upstanding piece that contacts an adjacent plate-like fin is formed at an opening edge of the insertion groove of the plate-like fin. A heat exchanger.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8267888A JPH1089870A (en) | 1996-09-18 | 1996-09-18 | Manufacture of heat exchanger and heat exchanger |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8267888A JPH1089870A (en) | 1996-09-18 | 1996-09-18 | Manufacture of heat exchanger and heat exchanger |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH1089870A true JPH1089870A (en) | 1998-04-10 |
Family
ID=17451026
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8267888A Withdrawn JPH1089870A (en) | 1996-09-18 | 1996-09-18 | Manufacture of heat exchanger and heat exchanger |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH1089870A (en) |
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