JPH07329550A - Heat exchanger made of aluminum material - Google Patents
Heat exchanger made of aluminum materialInfo
- Publication number
- JPH07329550A JPH07329550A JP12632194A JP12632194A JPH07329550A JP H07329550 A JPH07329550 A JP H07329550A JP 12632194 A JP12632194 A JP 12632194A JP 12632194 A JP12632194 A JP 12632194A JP H07329550 A JPH07329550 A JP H07329550A
- Authority
- JP
- Japan
- Prior art keywords
- header pipe
- heat exchanger
- header
- heat transfer
- hole
- 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.)
- Granted
Links
Landscapes
- Air-Conditioning For Vehicles (AREA)
- Details Of Heat-Exchange And Heat-Transfer (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】本発明に係るアルミニウム材製熱
交換器は、自動車用エンジンの冷却水放熱用のラジエー
タ、或は自動車用空調機の冷媒放熱用のコンデンサとし
て利用できる。The heat exchanger made of aluminum material according to the present invention can be used as a radiator for radiating cooling water of an automobile engine, or as a condenser for radiating a refrigerant of an automobile air conditioner.
【0002】[0002]
【従来の技術】自動車用空調機のコンデンサとして、例
えば図4示す様なアルミニウム材(アルミニウム及びア
ルミニウム合金を総称する。本明細書全体で同じ。)製
の熱交換器が広く使用されている。この熱交換器は、多
数の伝熱管1、1及びフィン2、2から成るコア部3の
長さ方向(図4の左右方向)両端部にヘッダパイプ4、
4を設け、このヘッダパイプ4、4の内側に、各伝熱管
1、1の端部を連通させている。この様な熱交換器によ
り、例えば冷媒等の流体と空気との間で熱交換を行なわ
せる場合には、上記流体を入口管12aを介して入口側
のヘッダパイプ4から送り込み、出口側のヘッダパイプ
4の出口管12bから取り出す。この間に、上記流体
は、入口側のヘッダパイプ4から出口側のヘッダパイプ
4に向けて、多数の伝熱管1、1を流れる。そして、こ
れら多数の伝熱管1、1を流れる間にコア部3の周囲を
流れる空気との間で熱交換を行なう。尚、上記ヘッダパ
イプ4、4のうち、一方のヘッダパイプ4の中間部に隔
壁を設け、このヘッダパイプ4の一半部に入口管12a
を、他半部に出口管12bを、それぞれ設けて成る熱交
換器もある。2. Description of the Related Art As a condenser for an air conditioner for an automobile, a heat exchanger made of an aluminum material (a generic name for aluminum and aluminum alloys; the same throughout this specification) as shown in FIG. 4 is widely used. In this heat exchanger, a header pipe 4 is provided at both ends in the length direction (left and right direction in FIG. 4) of a core portion 3 composed of a large number of heat transfer tubes 1, 1 and fins 2, 2.
4 is provided, and the ends of the heat transfer tubes 1 and 1 communicate with the insides of the header pipes 4 and 4. When heat exchange is performed between a fluid such as a refrigerant and air by such a heat exchanger, the fluid is sent from the header pipe 4 on the inlet side through the inlet pipe 12a and the header on the outlet side is supplied. Take out from the outlet pipe 12b of the pipe 4. During this period, the fluid flows from the header pipe 4 on the inlet side to the header pipe 4 on the outlet side through a large number of heat transfer tubes 1, 1. Then, heat is exchanged with the air flowing around the core portion 3 while flowing through the large number of heat transfer tubes 1, 1. A partition wall is provided at an intermediate portion of one of the header pipes 4 and 4, and the inlet pipe 12a is provided at one half of the header pipe 4.
There is also a heat exchanger in which the other half is provided with the outlet pipe 12b.
【0003】上記伝熱管1、1と1対のヘッダパイプ
4、4とは、後述する図6に示す様に、ヘッダパイプ4
に形成した透孔9、9に伝熱管1、1の端部を挿通し、
更にろう付けする事で、互いの内部同士を連通させる。
上記透孔9、9は、ヘッダパイプ4の軸方向(図4、6
の上下方向)に亙り、等間隔に形成している。又、上記
ヘッダパイプ4の両端にはパッチエンドと称される蓋部
材13を設け、ヘッダパイプ4の両端を液密に塞いでい
る。The heat transfer tubes 1 and 1 and the pair of header pipes 4 and 4 are, as shown in FIG.
Insert the ends of the heat transfer tubes 1, 1 into the through holes 9, 9 formed in
Further, by brazing, the insides of each other are communicated with each other.
The through holes 9 and 9 are formed in the axial direction of the header pipe 4 (see FIGS.
In the up and down direction) and are formed at equal intervals. A lid member 13 called a patch end is provided at both ends of the header pipe 4 to liquid-tightly close both ends of the header pipe 4.
【0004】上記コア部3の高さ方向(図4の上下方
向)両側には、それぞれコア部3の長さ方向に亙るサイ
ドプレート5、5を設ける。各サイドプレート5、5の
長さ方向(図4の左右方向)両端部はヘッダパイプ4、
4に接合して上記コア部3の強度を向上させる。On both sides of the core portion 3 in the height direction (vertical direction in FIG. 4), side plates 5 and 5 extending in the length direction of the core portion 3 are provided. Both ends of each of the side plates 5 and 5 in the length direction (left and right direction in FIG. 4) have header pipes 4,
4 to improve the strength of the core portion 3.
【0005】上記サイドプレート5は、図5(A)に示
す様に、平板状の基板部6と、この基板部6の長さ方向
(同図の矢印a方向)両端から突出した接合片7と、上
記基板部6の幅方向(同図の矢印b方向)両端部を同一
方向に直角に折り曲げて成る1対の取付板部8、8とか
ら構成される。この接合片7の幅方向(同図の矢印b方
向)に亙る寸法は、この図5(A)に示す様に基板部6
の幅寸法lよりも小さい寸法とする他、上記基板部6の
幅寸法lと同一寸法としたものもある。又、図5(B)
に示す様に、上記取付板部8、8を形成しないサイドプ
レート5aも存在する。このサイドプレート5aは、上
記図4の上側に設けるサイドプレート5に代えて使用さ
れる。As shown in FIG. 5 (A), the side plate 5 has a flat plate-shaped substrate portion 6 and joining pieces 7 protruding from both ends of the substrate portion 6 in the length direction (direction of arrow a in the figure). And a pair of mounting plate portions 8 formed by bending both ends of the board portion 6 in the width direction (direction of arrow b in the figure) in the same direction at a right angle. The dimension of the joining piece 7 in the width direction (the direction of arrow b in the figure) is as shown in FIG.
In addition to the dimension smaller than the width dimension 1 of the above, there is a dimension that is the same as the width dimension 1 of the substrate portion 6. Also, FIG. 5 (B)
As shown in FIG. 5, there is also the side plate 5a that does not form the mounting plate portions 8 and 8. The side plate 5a is used in place of the side plate 5 provided on the upper side of FIG.
【0006】上記サイドプレート5、5aと1対のヘッ
ダパイプ4、4との接合部の構造は、例えば、特開平4
−34009号公報に記載されている。即ち、図6に示
す様に、上記透孔9、9のうち、最も外側に位置する、
両端の透孔9の外側(ヘッダパイプ4の軸方向端部側)
に、貫通孔10を形成する。この貫通孔10に、上記サ
イドプレート5(5a)端部の接合片7を挿入し、更に
かしめ(塑性変形させ)る。上記接合片7の先端部をか
しめるのは、この接合片が貫通孔10から抜け出るのを
防止する為である。この後、ろう付け固定し、コア部3
の強度を向上させる。The structure of the joint between the side plates 5 and 5a and the pair of header pipes 4 and 4 is described in, for example, Japanese Patent Laid-Open No.
-34009 gazette. That is, as shown in FIG. 6, among the through holes 9 and 9, the outermost one is located.
Outside the through holes 9 at both ends (on the axial end side of the header pipe 4)
Then, the through hole 10 is formed. The joining piece 7 at the end of the side plate 5 (5a) is inserted into the through hole 10 and further caulked (plastically deformed). The reason for caulking the tip of the joining piece 7 is to prevent the joining piece from coming out of the through hole 10. After that, brazing and fixing the core 3
Improve the strength of.
【0007】又、特開平3−279798号公報には、
図7〜8に示す様に、ヘッダパイプ4、4に形成した嵌
合孔11内に、上記サイドプレート5(5a)端部の接
合片7を嵌合させる構造が記載されている。このうち、
図7に示したものは、図5に示したサイドプレート5、
5aと同様、接合片7を基板部6の幅寸法lよりも小さ
くしたものの嵌合状態を示している。又、図8に示した
ものは、上記接合片7を基板部6の幅寸法lと同一寸法
としたものの嵌合状態を示している。この様な構造に於
いても、サイドプレート5a(5)と上記嵌合孔11と
の嵌合部分をろう付けし、コア部3の強度向上を図る。Further, in Japanese Patent Laid-Open No. 3-279798,
As shown in FIGS. 7 to 8, there is described a structure in which the joint piece 7 at the end of the side plate 5 (5a) is fitted into the fitting hole 11 formed in the header pipes 4 and 4. this house,
FIG. 7 shows the side plate 5 shown in FIG.
Similar to 5a, a fitting state is shown in which the joint piece 7 is made smaller than the width dimension 1 of the substrate portion 6. Further, the one shown in FIG. 8 shows a fitting state in which the joint piece 7 has the same dimension as the width dimension 1 of the substrate portion 6. Even in such a structure, the fitting portion of the side plate 5a (5) and the fitting hole 11 is brazed to improve the strength of the core portion 3.
【0008】ところで、上述の様なアルミニウム材製熱
交換器を造る場合、以下の様に行なう。先ず、多数の伝
熱管1、1、フィン2、2、1対のヘッダパイプ4、
4、サイドプレート5(5a)を仮組み付けする。そし
て、この様に仮組み付けした状態で、この熱交換器を加
熱炉内で加熱する。上記構成各部品同士のうち、接合す
べく互いに当接する2部品のうちの少なくとも一方の部
品は、当接する表面にろう材を積層している。例えば、
上記ヘッダパイプ4、4の表面に上記ろう材を積層する
と共に、サイドプレート5、5aにろう材層を設けない
構造としたり、或はサイドプレート5、5aにろう材層
を設けると共に、上記ヘッダパイプ4、4にろう材層を
設けない構造とする。勿論、構成各部品にろう材層を設
けても良い。伝熱管1、1の表面には、ろう材層を持た
ないフィン2、2とのろう付けの必要上、必ずろう材層
を設ける。何れにしても、上記ろう材層を設けている
為、仮組み付けした熱交換器を加熱する事により上記ろ
う材を溶融させ、その後冷却固化すれば、上記構成各部
品同士を互いにろう付けできる。By the way, when the heat exchanger made of aluminum material as described above is manufactured, it is carried out as follows. First, a large number of heat transfer tubes 1, 1, fins 2, 2, and a pair of header pipes 4,
4. Temporarily assemble the side plate 5 (5a). Then, the heat exchanger is heated in the heating furnace in the temporarily assembled state. At least one of the two components that abut each other to be joined among the above-described components has a brazing material laminated on the abutting surface. For example,
The brazing material is laminated on the surfaces of the header pipes 4 and 4 and the brazing material layer is not provided on the side plates 5 and 5a, or the brazing material layer is provided on the side plates 5 and 5a. The pipes 4 and 4 are not provided with a brazing material layer. Of course, a brazing material layer may be provided on each component. A brazing material layer is always provided on the surfaces of the heat transfer tubes 1 and 1 in order to braze the fins 2 and 2 having no brazing material layer. In any case, since the brazing material layer is provided, if the brazing material is melted by heating the heat exchanger that is temporarily assembled and then cooled and solidified, the constituent parts can be brazed to each other.
【0009】[0009]
【発明が解決しようとする課題】ところが、上述の様に
構成され作用するアルミニウム材製熱交換器を製造する
場合、上記ヘッダパイプ4とサイドプレート5(5a)
との接合部に関して、次に述べる様な解決すべき課題が
存在する。即ち、上記従来の第一例の構造の場合、上記
サイドプレート5(5a)の接合片7をヘッダパイプ4
に形成した貫通孔10内に挿入し、ろう付けする。この
際、上記貫通孔10の内周縁と、この内周縁に対向する
接合片7の外周縁との間に形成される隙間を密に塞ぐ必
要がある。何となれば、上記隙間が形成されたままの場
合、各伝熱管1、1に送り込まれ、或は送り出される冷
媒等の液体が当該隙間から漏れてしまう。この為、この
様な熱交換器は、不良品として廃棄しなければならな
い。又、上記貫通孔10を形成する為に余分な工程、並
びに製造型が必要になり、製造に手間を要すると共に製
造コストが嵩んでしまう。上記従来の第二例の構造に於
いては、上述の様な貫通孔10形成に基づく気密、液密
不良が生じる事はないが、この第二例の構造の場合、嵌
合孔11を形成する為に、上記貫通孔10形成に増して
手間並びにコストが嵩む。However, in the case of manufacturing the heat exchanger made of aluminum material which is constructed and operates as described above, the header pipe 4 and the side plate 5 (5a) are to be manufactured.
There are the following problems to be solved regarding the joint portion with. That is, in the case of the structure of the above-mentioned first example of the related art, the joining piece 7 of the side plate 5 (5a) is attached to the header pipe 4
It is inserted into the through hole 10 formed in the above and brazed. At this time, it is necessary to tightly close the gap formed between the inner peripheral edge of the through hole 10 and the outer peripheral edge of the joining piece 7 facing the inner peripheral edge. What is more, if the above-mentioned gap is still formed, the liquid such as the refrigerant sent into or sent out from each heat transfer tube 1, 1 leaks from the gap. Therefore, such a heat exchanger must be discarded as a defective product. In addition, an extra step and a manufacturing die are required to form the through hole 10, which requires time and labor for manufacturing. In the structure of the second example of the related art described above, the airtightness and liquid-tightness failure due to the formation of the through hole 10 as described above does not occur, but in the structure of the second example, the fitting hole 11 is formed. Therefore, the labor and cost are increased in addition to the formation of the through hole 10.
【0010】更に、上記従来の第一例、第二例、何れの
構造に於いても、ヘッダパイプ4の両端部を蓋部材13
(図6参照)により塞いでいる。この蓋部材13は前記
図6に示す様に有底短筒状の凸部14の開口端外周部分
に外向フランジ状部15を形成して成る。この為、蓋部
材13をヘッダパイプ4の開口に装着した場合、上記凸
部14は、この凸部14の高さh分だけヘッダパイプ4
の内側に入り込む。従って、この凸部14と上記接合片
7(図6に示す第一例の構造の場合)、或は嵌合孔11
を形成する事で形成される、ヘッダパイプ4内部への突
出部分(図7〜8に示す第二例の構造の場合)とが干渉
しない様、貫通孔10、或は嵌合孔11形成位置を、ヘ
ッダパイプ4の端縁部から上記高さh(例えば、1cm)
以上、中央側に寄った位置に設定しなければならない。
この結果、上記ヘッダパイプ4の長さ方向両端部がコア
部3から突出した形状になってしまう。この様にヘッダ
パイプ4の長さ方向両端部がコア部3より突出している
と、この熱交換器を車体に取り付ける為の自由度が小さ
くなる。本発明のアルミニウム材製熱交換器は、前述の
様な不都合を何れも解消すべく、考えたものである。Further, in any of the above-mentioned conventional first and second examples, both end portions of the header pipe 4 are covered with the lid member 13.
(See FIG. 6). As shown in FIG. 6, the lid member 13 is formed by forming an outward flange-shaped portion 15 on the outer peripheral portion of the open end of a convex portion 14 having a short tubular shape with a bottom. Therefore, when the lid member 13 is attached to the opening of the header pipe 4, the convex portion 14 has the height h of the convex portion 14 for the header pipe 4.
Get inside the Therefore, the convex portion 14 and the joining piece 7 (in the case of the structure of the first example shown in FIG. 6) or the fitting hole 11
The through hole 10 or the fitting hole 11 forming position is formed so as not to interfere with the protruding portion (in the case of the structure of the second example shown in FIGS. 7 to 8) protruding into the header pipe 4 formed by forming the From the edge of the header pipe 4 to the height h (for example, 1 cm)
As described above, the position must be set closer to the center side.
As a result, both end portions in the length direction of the header pipe 4 have a shape protruding from the core portion 3. When both ends in the length direction of the header pipe 4 project from the core portion 3 in this way, the degree of freedom for mounting the heat exchanger on the vehicle body becomes small. The aluminum-made heat exchanger of the present invention is intended to eliminate any of the above-mentioned inconveniences.
【0011】[0011]
【課題を解決するための手段】本発明のアルミニウム材
製熱交換器は、前述した従来のアルミニウム材製熱交換
器と同様に、それぞれがアルミニウム材により造られ、
間隔をあけて互いに平行に設けられた断面円形の1対の
ヘッダパイプと、両端部をそれぞれ上記1対のヘッダパ
イプに接続すると共に、互いに間隔をあけて配設された
複数の伝熱管と、最も外側の伝熱管の外側に設けられ、
両端部をそれぞれ1対のヘッダパイプに接合した1対の
サイドプレートと、隣り合う伝熱管の間、並びに上記最
も外側の伝熱管とサイドプレートとの間に設けられたフ
ィンとを備える。The heat exchanger made of aluminum material according to the present invention is made of aluminum material in the same manner as the conventional heat exchanger made of aluminum material,
A pair of header pipes having circular cross sections, which are provided in parallel with each other at intervals, and a plurality of heat transfer tubes which are connected to both ends of the header pipes and are spaced from each other, Provided outside the outermost heat transfer tube,
It is provided with a pair of side plates each having both ends joined to a pair of header pipes, and fins provided between adjacent heat transfer tubes and between the outermost heat transfer tube and the side plate.
【0012】特に、本発明のアルミニウム材製熱交換器
に於いては、サイドプレートの長さ方向両端部に、上記
ヘッダパイプの中間部に向けて折り曲げられ、且つ、そ
の幅方向中間部に切り欠きを設けた接合片を形成してい
る。そして、この接合片を上記ヘッダパイプの周面に当
接させ、更にろう付け接合した事を特徴としている。In particular, in the aluminum heat exchanger of the present invention, the side plates are bent at both ends in the length direction toward the middle part of the header pipe, and cut in the middle part in the width direction. A joining piece having a notch is formed. The joining piece is brought into contact with the peripheral surface of the header pipe and further brazed and joined.
【0013】[0013]
【作用】上述の様に構成される本発明のアルミニウム材
製熱交換器を用いて、内部を流れる冷媒等の流体と外部
を流れる空気との間で熱交換を行わせる際の作用自体
は、前述した従来のアルミニウム材製熱交換器と同様で
ある。特に、本発明のアルミニウム材製熱交換器に於い
ては、ヘッダパイプに接合片を接合する為の貫通孔、或
は嵌合孔を設けない。この為、これら貫通孔或は嵌合孔
形成に係る工程、製造型を省略でき、製造コストを低減
できる。又、貫通孔を設ける場合の様に、この貫通孔部
分の気密、液密不良が生じる事がなく、不良品の発生が
減少する。The operation itself when heat is exchanged between a fluid such as a refrigerant flowing inside and air flowing outside using the heat exchanger made of aluminum material of the present invention having the above-described structure, This is similar to the conventional heat exchanger made of aluminum material described above. Particularly, in the aluminum heat exchanger of the present invention, no through hole or fitting hole for joining the joining piece to the header pipe is provided. Therefore, the process and the manufacturing die for forming the through hole or the fitting hole can be omitted, and the manufacturing cost can be reduced. Further, unlike the case where the through hole is provided, the airtightness and liquid tightness of the through hole portion do not occur, and the number of defective products is reduced.
【0014】更に、貫通孔に挿通した接合片、或は嵌合
孔を形成する事で形成される突出部分と、ヘッダパイプ
の両端に設けられる蓋部材とが干渉する事もない為、上
記貫通孔或は嵌合孔をヘッダパイプの端縁に近い位置に
設ける事ができる。従って、ヘッダパイプの長さ寸法を
従来と同一とした場合には、上記サイドプレートをヘッ
ダパイプの端縁に近い部分に接合する事で伝熱管の数を
増加でき、熱交換器全体を大型化する事なくコア部を大
型化でき、性能を向上させられる。或は、コア部の寸法
を従来と同一にした場合には、ヘッダパイプの長さ寸法
を短縮できる為、性能を同一としたまま熱交換器の小型
化を図れる。Furthermore, since there is no interference between the joint piece inserted into the through hole or the protruding portion formed by forming the fitting hole, the lid members provided at both ends of the header pipe do not interfere with each other. The hole or fitting hole can be provided at a position close to the edge of the header pipe. Therefore, if the length of the header pipe is the same as the conventional one, the number of heat transfer tubes can be increased by joining the side plate to the portion near the edge of the header pipe, and the overall heat exchanger can be enlarged. Without increasing the size of the core, the performance can be improved. Alternatively, when the size of the core portion is the same as the conventional one, the length dimension of the header pipe can be shortened, so that the heat exchanger can be downsized while keeping the same performance.
【0015】[0015]
【実施例】次に、図示の実施例を説明しつつ、本発明を
更に詳しく説明する。尚、本発明のアルミニウム材製熱
交換器は、サイドプレートの接合片とヘッダパイプとの
接合部にその特徴がある。その他の構成、並びに作用に
就いては、前述した従来のアルミニウム材製熱交換器と
同様である為、重複する説明を省略し、以下、本発明の
特徴部分を中心に説明する。The present invention will be described in more detail with reference to the illustrated embodiments. The aluminum heat exchanger of the present invention is characterized by the joint between the joint piece of the side plate and the header pipe. Other configurations and operations are the same as those of the conventional heat exchanger made of aluminum material described above, and therefore, redundant description will be omitted, and the characteristic part of the present invention will be mainly described below.
【0016】本発明のアルミニウム材製熱交換器を構成
するサイドプレート5は、その長さ方向(図1の矢印a
方向)両端部に接合片17を設けている。この接合片1
7は、上記ヘッダパイプ4の中間部に向けて折り曲げて
いる。これと共に、この接合片17は、その幅方向(図
1の矢印b方向)中間部に、台形状の切り欠き18を設
けている。The side plate 5 constituting the aluminum-made heat exchanger of the present invention has a longitudinal direction (arrow a in FIG. 1).
Direction) The joining pieces 17 are provided at both ends. This joining piece 1
7 is bent toward the middle portion of the header pipe 4. Along with this, the joining piece 17 is provided with a trapezoidal notch 18 in the middle portion in the width direction (direction of arrow b in FIG. 1).
【0017】上述の様に、接合片17を折り曲げるの
は、組み付け時のばらつき、加熱ろう付け時のコア収縮
等の変位を総て吸収させる為である。図示の実施例の場
合、接合片17の折り曲げ角度θを、ほぼ50度にして
いるが、この角度θの値は任意である。但し、折り曲げ
角度θが小さ過ぎ(水平に近過ぎ)たり、或は大き過ぎ
(基板6に対して垂直に近過ぎ)たりした場合、サイド
プレート5とヘッダパイプ4との組み付けが面倒になっ
たり、上記変位吸収が十分に行なわれない。従って、こ
の折り曲げ角度θは、コア部3の寸法等を勘案して、ヘ
ッダパイプ4との仮組み付け、及び接合が円滑に行なわ
れる様、決定する。As described above, the joining piece 17 is bent in order to absorb all variations such as variations during assembly and core shrinkage during heating brazing. In the illustrated embodiment, the bending angle θ of the joining piece 17 is approximately 50 degrees, but the value of this angle θ is arbitrary. However, when the bending angle θ is too small (too close to horizontal) or too large (too close to vertical with respect to the substrate 6), the assembly of the side plate 5 and the header pipe 4 becomes troublesome. However, the displacement absorption is not sufficiently performed. Therefore, the bending angle θ is determined in consideration of the size of the core portion 3 and the like so that the temporary assembly with the header pipe 4 and the joining can be smoothly performed.
【0018】又、上記接合片17の幅方向中間部に切り
欠き18を設けるのは、上記ヘッダパイプ4とこの接合
片17との当接点を増加させる為である。即ち、本発明
に於いては、上記ヘッダパイプ4に貫通孔10、嵌合孔
11を設けない為、上記接合片17に切り欠き18を設
けない場合には、接合片17の先端縁の1箇所のみが断
面円形のヘッダパイプ4の周面と当接するだけである。
これに対し、上述の様に切り欠き18を設けた場合、上
記ヘッダパイプ4の周面に、接合片17の端縁部分及び
切り欠き18の端縁部分3個所で当接する。この為ろう
付け長さが長くなり、接合強度が向上する。上記切り欠
き18としては、図示の様な台形状の他、V字状、半円
状或は半楕円状等の曲線状とする事ができる。The notch 18 is provided in the widthwise intermediate portion of the joining piece 17 in order to increase the contact points between the header pipe 4 and the joining piece 17. That is, in the present invention, since the through-hole 10 and the fitting hole 11 are not provided in the header pipe 4, if the notch 18 is not provided in the joining piece 17, one of the leading edges of the joining piece 17 is provided. Only the points contact the peripheral surface of the header pipe 4 having a circular cross section.
On the other hand, when the notch 18 is provided as described above, the end surface of the joint piece 17 and the end portion of the notch 18 come into contact with the peripheral surface of the header pipe 4 at three locations. For this reason, the brazing length is increased and the joint strength is improved. The notch 18 may have a trapezoidal shape as shown, or a curved shape such as a V shape, a semicircular shape, or a semielliptic shape.
【0019】上述の様なサイドプレート5とヘッダパイ
プ4とを接合するには、次の様に行なう。即ち、従来の
熱交換器を製造する場合と同様に、1対のヘッダパイプ
4の間に多数の伝熱管1、1(図4)を挿通する。更
に、1対のサイドプレート5を、図2に示す様にヘッダ
パイプ4に近付け、1対のヘッダパイプ4同士の間に挟
み込む。この際、上記接合片17は図3に鎖線で示す様
に折り曲げられていたのが、組み付け時の構成各部品の
寸法誤差等を吸収しつつ、同図に実線で示す様に弾性変
形した状態で1対のヘッダパイプ4の間に挟持する。こ
の様にして、構成各部品を仮組み付けしたならば、前述
した従来例と同様、加熱ろう付けし、アルミニウム材製
熱交換器とする。加熱ろう付け時、上記コア部3には、
伝熱管1、1とフィン2、2(図4)との当接面間に存
在するろう材が当接面外に流出する事に伴うコア収縮が
生じ、コア部3の高さ寸法が減少する。また、ヘッダパ
イプ4は加熱時の熱膨張に伴ない、軸方向に伸長する。
これら各変位は、上記ヘッダパイプ4の中央部に向けて
折り曲げられた上記接合片17が、ヘッダパイプ4の外
周面に対し摺動して吸収する。To join the side plate 5 and the header pipe 4 as described above, the following procedure is carried out. That is, as in the case of manufacturing a conventional heat exchanger, a large number of heat transfer tubes 1, 1 (FIG. 4) are inserted between a pair of header pipes 4. Further, the pair of side plates 5 is brought close to the header pipe 4 as shown in FIG. 2, and is sandwiched between the pair of header pipes 4. At this time, the joining piece 17 was bent as shown by the chain line in FIG. 3, but it is elastically deformed as shown by the solid line in FIG. 3 while absorbing the dimensional error of each component during assembly. It is sandwiched between a pair of header pipes 4. After the components are temporarily assembled in this manner, they are brazed by heating as in the conventional example described above to obtain a heat exchanger made of aluminum. When brazing by heating,
The brazing material existing between the contact surfaces of the heat transfer tubes 1 and 1 and the fins 2 and 2 (Fig. 4) flows out of the contact surfaces to cause core contraction, which reduces the height of the core portion 3. To do. Further, the header pipe 4 expands in the axial direction along with the thermal expansion during heating.
Each of these displacements is absorbed by the joint piece 17 bent toward the central portion of the header pipe 4 sliding on the outer peripheral surface of the header pipe 4.
【0020】上述の様に構成される本発明のアルミニウ
ム材製熱交換器により、内部を流通する冷媒等の液体
と、外部を流通する空気との間で熱交換する際の作用
は、前述した従来の熱交換器と同様である。特に、本発
明のアルミニウム材製熱交換器に於いては、上記ヘッダ
パイプ4に、前述した従来の第一、第二例の様な、貫通
孔10、或は嵌合孔11を形成しない。従って、これら
貫通孔10、或は嵌合孔11を形成する為に要する工
程、製造型を省略でき、製造時の手間並びにコスト低減
を図れる。又、上記貫通孔10を形成しない事に伴い、
貫通孔10内周縁と、この内周縁に対向する接合片7
(図5)の外周縁との間に形成される隙間が、当該部分
のろう付け不良等に起因して塞がれず、気密、液密不良
となる恐れがなくなる。従って、不良品の発生を低減で
きる。With the heat exchanger made of aluminum material of the present invention having the above-described structure, the action when heat is exchanged between the liquid such as the refrigerant flowing inside and the air flowing outside is described above. It is similar to a conventional heat exchanger. Particularly, in the heat exchanger made of aluminum material of the present invention, the header pipe 4 does not have the through hole 10 or the fitting hole 11 unlike the above-mentioned first and second conventional examples. Therefore, it is possible to omit the process and manufacturing die required to form the through hole 10 or the fitting hole 11, and it is possible to reduce the labor and cost at the time of manufacturing. Further, since the through hole 10 is not formed,
The inner peripheral edge of the through hole 10 and the joining piece 7 facing the inner peripheral edge
The gap formed with the outer peripheral edge of (FIG. 5) is not closed due to defective brazing of the portion, and there is no fear of airtightness or liquidtightness failure. Therefore, the generation of defective products can be reduced.
【0021】更に、貫通孔10に挿通した接合片7、或
はこの接合片7が嵌合する嵌合孔11形成部分と、ヘッ
ダパイプ4の両端に設けられる蓋部材13とが干渉する
事もない。この為、上記貫通孔10或は嵌合孔11をヘ
ッダパイプ4の端縁に近い位置に設ける事ができる。従
って、ヘッダパイプ4の長さ寸法を従来と同一とした場
合には、上記サイドプレート5(5a)をヘッダパイプ
4の端縁に近い部分に接合する事で伝熱管1、1の数を
増加でき、熱交換器全体を大型化する事なくコア部3を
大型化でき、性能を向上させられる。或は、コア部3の
寸法を従来と同一にした場合には、ヘッダパイプ4の長
さ寸法を短縮できる為、性能を同一としたまま熱交換器
の小型化を図れる。Further, the joining piece 7 inserted through the through hole 10 or the portion where the joining hole 11 is formed into which the joining piece 7 is fitted may interfere with the lid members 13 provided at both ends of the header pipe 4. Absent. Therefore, the through hole 10 or the fitting hole 11 can be provided at a position close to the edge of the header pipe 4. Therefore, when the length dimension of the header pipe 4 is the same as the conventional one, the number of the heat transfer tubes 1, 1 is increased by joining the side plate 5 (5a) to a portion near the end edge of the header pipe 4. Therefore, the core portion 3 can be increased in size without increasing the size of the entire heat exchanger, and the performance can be improved. Alternatively, when the size of the core portion 3 is the same as the conventional one, the length of the header pipe 4 can be shortened, so that the heat exchanger can be downsized while maintaining the same performance.
【0022】[0022]
【発明の効果】本発明のアルミニウム材製熱交換器は上
述の様に構成され作用するが、貫通孔、或は嵌合孔を設
ける為の工程数、及び製造型を省略でき、労力並びにコ
ストが低減する。又、ヘッダパイプに貫通孔を設けない
為、この貫通孔の内周縁部分に隙間が形成される事もな
い。従って、上記部分が気密、液密不良となる事がな
い。しかも、ヘッダパイプ両端の蓋部材と、接合片或は
嵌合孔形成に伴って形成される突出部分とが干渉する事
がない。この為、サイドプレートをヘッダパイプの端縁
付近に接合でき、熱交換器の小型化、高性能化を図れ
る。The heat exchanger made of aluminum material of the present invention is constructed and operates as described above, but the number of steps for forming the through hole or the fitting hole and the manufacturing die can be omitted, and the labor and cost can be reduced. Is reduced. Further, since no through hole is provided in the header pipe, no gap is formed in the inner peripheral edge portion of this through hole. Therefore, the above-mentioned portion does not become airtight or liquidtight. Moreover, the lid members at both ends of the header pipe do not interfere with the joint piece or the protruding portion formed by the formation of the fitting hole. Therefore, the side plate can be joined near the edge of the header pipe, and the heat exchanger can be downsized and its performance can be improved.
【図1】本発明を構成するサイドプレートの接合片を示
す斜視図。FIG. 1 is a perspective view showing a joining piece of a side plate that constitutes the present invention.
【図2】接合片とヘッダパイプとを組み付ける状態を示
す斜視図。FIG. 2 is a perspective view showing a state in which a joining piece and a header pipe are assembled.
【図3】組み付けた状態を示す正面図。FIG. 3 is a front view showing an assembled state.
【図4】本発明の対象となるアルミニウム材製熱交換器
を示す斜視図。FIG. 4 is a perspective view showing an aluminum-made heat exchanger according to the present invention.
【図5】従来のサイドプレートの2例を示す、それぞれ
斜視図。FIG. 5 is a perspective view showing two examples of conventional side plates.
【図6】サイドプレートとヘッダパイプとの従来の接合
状態の第一例を示す縦断面図。FIG. 6 is a vertical cross-sectional view showing a first example of a conventional joining state of a side plate and a header pipe.
【図7】同第二例を示しており、(A)は横断平面図、
(B)は縦断側面図である。FIG. 7 shows the second example, (A) is a cross-sectional plan view,
(B) is a vertical sectional side view.
【図8】同第二例の別例を示す図7と同様の図。FIG. 8 is a view similar to FIG. 7 showing another example of the second example.
1 伝熱管 2 フィン 3 コア部 4 ヘッダパイプ 5、5a サイドプレート 6 基板部 7 接合片 8 取付板部 9 透孔 10 貫通孔 11 嵌合孔 12a 入口管 12b 出口管 13 蓋部材 14 凸部 15 外向フランジ状部 17 接合片 18 切り欠き DESCRIPTION OF SYMBOLS 1 Heat transfer pipe 2 Fin 3 Core part 4 Header pipe 5, 5a Side plate 6 Board part 7 Joining piece 8 Mounting plate part 9 Through hole 10 Through hole 11 Fitting hole 12a Inlet pipe 12b Outlet pipe 13 Lid member 14 Convex part 15 Outward Flange-like part 17 Joining piece 18 Notch
Claims (1)
れ、間隔をあけて互いて平行に設けられた断面円形の1
対のヘッダパイプと、両端部をそれぞれ上記1対のヘッ
ダパイプに接続すると共に、互いに間隔をあけて配設さ
れた複数の伝熱管と、最も外側の伝熱管の外側に設けら
れ、両端部をそれぞれ1対のヘッダパイプに接合した1
対のサイドプレートと、隣り合う伝熱管の間、並びに上
記最も外側の伝熱管とサイドプレートとの間に設けられ
たフィンとを備えたアルミニウム材製熱交換器に於い
て、サイドプレートの長さ方向両端部に、上記ヘッダパ
イプの中間部に向けて折り曲げられ、且つ、その幅方向
中間部に切り欠きを設けた接合片を形成し、この接合片
を上記ヘッダパイプの周面に当接させ、更にろう付け接
合した事を特徴とするアルミニウム材製熱交換器。1. A circular cross-section formed of aluminum material and provided in parallel with each other at intervals.
A pair of header pipes and both ends thereof are respectively connected to the above-mentioned pair of header pipes, and a plurality of heat transfer tubes arranged at intervals and a plurality of outermost heat transfer tubes are provided outside the heat transfer tubes. 1 for each pair of header pipes
In a heat exchanger made of aluminum material, which comprises a pair of side plates and fins provided between adjacent heat transfer tubes and between the outermost heat transfer tube and the side plate, the length of the side plates Formed at both ends in the direction of the header pipe are joint pieces bent toward the middle portion of the header pipe and having notches at the middle portion in the width direction, and the joint pieces are brought into contact with the peripheral surface of the header pipe. , A heat exchanger made of aluminum material, which is characterized by being brazed and joined.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12632194A JP3207321B2 (en) | 1994-06-08 | 1994-06-08 | Aluminum heat exchanger |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12632194A JP3207321B2 (en) | 1994-06-08 | 1994-06-08 | Aluminum heat exchanger |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH07329550A true JPH07329550A (en) | 1995-12-19 |
JP3207321B2 JP3207321B2 (en) | 2001-09-10 |
Family
ID=14932297
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12632194A Expired - Fee Related JP3207321B2 (en) | 1994-06-08 | 1994-06-08 | Aluminum heat exchanger |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP3207321B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6904964B2 (en) * | 1998-12-15 | 2005-06-14 | Calsonic Kansei Corporation | Heat exchanger core, and method of assembling the heat exchanger core |
-
1994
- 1994-06-08 JP JP12632194A patent/JP3207321B2/en not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6904964B2 (en) * | 1998-12-15 | 2005-06-14 | Calsonic Kansei Corporation | Heat exchanger core, and method of assembling the heat exchanger core |
Also Published As
Publication number | Publication date |
---|---|
JP3207321B2 (en) | 2001-09-10 |
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