JPH0432550Y2 - - Google Patents
Info
- Publication number
- JPH0432550Y2 JPH0432550Y2 JP19296687U JP19296687U JPH0432550Y2 JP H0432550 Y2 JPH0432550 Y2 JP H0432550Y2 JP 19296687 U JP19296687 U JP 19296687U JP 19296687 U JP19296687 U JP 19296687U JP H0432550 Y2 JPH0432550 Y2 JP H0432550Y2
- Authority
- JP
- Japan
- Prior art keywords
- flat tube
- joint member
- tip
- aluminum
- flat
- 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.)
- Expired
Links
- 238000005219 brazing Methods 0.000 claims description 29
- 230000008878 coupling Effects 0.000 claims description 24
- 238000010168 coupling process Methods 0.000 claims description 24
- 238000005859 coupling reaction Methods 0.000 claims description 24
- 229910052782 aluminium Inorganic materials 0.000 claims description 23
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 23
- 238000003780 insertion Methods 0.000 claims description 23
- 230000037431 insertion Effects 0.000 claims description 23
- 239000012530 fluid Substances 0.000 claims description 20
- 238000004891 communication Methods 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000005304 joining Methods 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000003507 refrigerant Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
Landscapes
- Non-Disconnectible Joints And Screw-Threaded Joints (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
- Details Of Heat-Exchange And Heat-Transfer (AREA)
Description
【考案の詳細な説明】
産業上の利用分野
この考案は、熱交換器等において使用される継
手部材と偏平管の結合装置に関する。[Detailed Description of the Invention] Industrial Application Field This invention relates to a coupling device for a joint member and a flat tube used in a heat exchanger or the like.
この明細書において、アルミニウムとは、純ア
ルミニウムの他にアルミニウム合金を含んで意味
するものとする。 In this specification, aluminum includes not only pure aluminum but also aluminum alloys.
従来の技術
従来、アルミニウム製熱交換器に取り付けられ
た冷媒流通用偏平管の先端部には、雄雌いずれか
の継手部材がろう付けにより固着せられている
が、この偏平管と継手部材のろう付けは、通常偏
平管とコルゲートフインの組合わせよりなる熱交
換器コアの一括ろう付けのあとに別に行なわれる
か、または逆に、偏平管と継手部材のろう付けを
先に行ない、ついでこの継手部材付き偏平管にコ
ルゲートフインを組み合わせてなる熱交換器のコ
アを一括ろう付けしていた。Conventional technology Conventionally, either a male or a female joint member is fixed by brazing to the tip of a flat tube for refrigerant distribution attached to an aluminum heat exchanger. Brazing is usually done separately after the heat exchanger core, which is a combination of flat tubes and corrugated fins, is brazed together, or conversely, the flat tubes and joint members are brazed first, and then this is done. The core of a heat exchanger, which consists of flat tubes with joints and corrugated fins, was brazed all at once.
考案が解決しようとする課題
しかしながら、これではろう付け作業が２工程
になり、熱交換器の製造を能率よく実施すること
ができないという問題があつた。Problems to be Solved by the Invention However, with this method, there was a problem in that the brazing work required two steps, making it impossible to efficiently manufacture the heat exchanger.
そこで、本出願人は、筒状継手部材の偏平管接
続側端部に偏平管の先端部の外形とほゞ等しい差
込み部を設けて、この差込み部の開口の周囲に、
接合リング嵌込み用凹所を設けておき、両面にろ
う材がクラツドされたアルミニウム・ブレージン
グ・シートからなる接合リングを上記凹所内に嵌
込むとともに、この接合リングを貫通した偏平管
の先端部を継手部材の差込み部に差し込み、この
状態で真空ろう付法により偏平管と継手部材とを
ろう付する方法を提案した（特開昭63−6394号公
報参照）。 Therefore, the present applicant provided an insertion section at the end of the cylindrical joint member on the flat tube connection side, the outer shape of which is approximately the same as the tip of the flat tube, and around the opening of this insertion section,
A recess for fitting the joining ring is provided, and a joining ring made of an aluminum brazing sheet with brazing filler metal clad on both sides is inserted into the recess, and the tip of the flat tube that has passed through this joining ring is inserted into the recess. We proposed a method in which the flat tube is inserted into the insertion part of the joint member, and in this state, the flat tube and the joint member are brazed by vacuum brazing (see Japanese Patent Laid-Open No. 6394/1983).
しかしながら、この先提案の方法では、継手部材
の端部に偏平管の先端部の外形とほゞ等しい差込
み部が設けられているだけで、継手部材はブロツ
ク状であるため、ろう付けのさいの継手部材自体
の熱容量が非常に大きいものであり、従つて例え
ば真空ろう付けのさい継手部材の温度が上がりに
くく、偏平管と薄肉のコルゲートフイン部分のろ
う付け温度に対し、偏平管と継手部材部分のろう
付け温度がどうしても低くなり、従つてろう付け
精度が悪く、とくに継手部材と接合リングとのろ
う付け状態が良くないという問題があつた。However, in the previously proposed method, only an insertion part is provided at the end of the joint member, which is approximately the same as the outer shape of the tip of the flat tube, and since the joint member is block-shaped, it is difficult to form a joint during brazing. The heat capacity of the component itself is very large, so the temperature of the joint component is difficult to rise during vacuum brazing, for example. There was a problem that the brazing temperature inevitably became low, resulting in poor brazing accuracy and, in particular, poor brazing condition between the joint member and the joining ring.
この考案の目的は、上記の問題を解決し、継手
部材自体の熱容量を小さいものとすることによ
り、継手部材と偏平管のろう付けをきわめて精度
よく実施することができ、ひいてはすぐれた品質
の熱交換器等を製造し得るとともに、継手部材
を、偏平管とコルゲートフインとを組み合わせた
熱交換器のコアとともに一括して精度よくろう付
けすることが可能であるため、熱交換器の製造を
単一工程で能率よく実施することができ、そのう
え偏平管に対する継手部材の取付け方向を規制す
ることができ、品質が安定した熱交換器等を得る
ことができる、継手部材と偏平管の結合装置を提
供しようとするにある。 The purpose of this invention is to solve the above problems and reduce the heat capacity of the joint member itself, thereby making it possible to braze the joint member and flat pipe with high precision, and to achieve superior quality heat. It is possible to manufacture heat exchangers, etc., and also to precisely braze the joint members together with the core of the heat exchanger, which is a combination of flat tubes and corrugated fins, which simplifies the manufacture of heat exchangers. A coupling device for coupling members and flat tubes that can be efficiently carried out in one process, and also allows the direction of attachment of the coupling member to the flat tubes to be regulated, resulting in stable quality heat exchangers, etc. That's what we're trying to offer.
課題を解決するための手段
この考案は、上記の目的を達成するために、流
体流通孔を有するアルミニウム製筒状継手部材の
偏平管接続側端部の内周面に、アルミニウム製偏
平管の先端部の長い方の直径より大きい外径を有
する環状段部が設けられて、該継手部材端部に偏
平管先端部差込み部が形成され、この環状段部の
内側において継手部材端部の内壁に流体通過間隙
形成用段部が少なくとも偏平管の先端部と対向す
る位置に設けられ、継手部材の同端部に偏平管の
外形と同じかまたは若干大きい偏平管挿通孔を有
するアルミニウム・ブレージング・シート製の蓋
状結合部材が被せられ、この蓋状結合部材の挿通
孔を通つてかつ上記段部に対向するように継手部
材端部の差込み部内に差し込まれた偏平管の先端
部が、環状段部に受け止められ、偏平管の先端部
と上記段部との間に流体通過間隙が形成されてお
り、継手部材と蓋状結合部材、および偏平間と蓋
状結合部材とがそれぞれろう付けされている、継
手部材と偏平管の結合装置を要旨としている。Means for Solving the Problems In order to achieve the above-mentioned object, this invention provides a method for attaching a tip of an aluminum flat tube to the inner circumferential surface of the flat tube connection side end of an aluminum cylindrical joint member having a fluid flow hole. An annular step having an outer diameter larger than the longer diameter of the fitting member is provided, a flat tube tip insertion portion is formed at the end of the fitting member, and an inner wall of the end of the fitting member is formed inside the annular step. An aluminum brazing sheet in which a stepped portion for forming a fluid passage gap is provided at least at a position facing the tip of the flat tube, and a flat tube insertion hole at the same end of the joint member is the same as or slightly larger than the outer diameter of the flat tube. The distal end of the flat tube is covered with a lid-like coupling member made of aluminum, and is inserted into the insertion portion of the end of the joint member through the insertion hole of the lid-like coupling member and facing the step. A fluid passage gap is formed between the tip of the flat tube and the stepped portion, and the joint member and the lid-like connecting member are brazed to each other, and the flat tube and the lid-like connecting member are respectively brazed. The gist is a coupling device for a joint member and a flat tube.
作 用
上記継手部材と偏平管の結合装置によれば、ア
ルミニウム製筒状継手部材の偏平管接続側端部の
内周面に設けられた環状段部の外径が、偏平管の
先端部の長い方の直径よりも大きいものとなされ
ていて、環状段部の外周壁が薄肉となされている
ので、ろう付けにおける継手部材自体の熱容量が
小さいものとなり、これによつてろう付けのさい
継手部材の温度が上がりやすく、従つて例えば真
空ろう付けの場合に偏平管とコルゲートフイン部
分のろう付け温度に対し、偏平管と継手部材部分
のろう付け温度を同等に近づけることができて、
継手部材と偏平管のろう付けをきわめて精度よく
実施することができる。従つて例えば継手部材
を、偏平管とコルゲートフインとを組み合わせた
熱交換器のコアとともに一括して精度よくろう付
けすることも可能であり、熱交換器の製造を単一
工程で能率よく実施することができる。また、偏
平管挿通孔を有するアルミニウム・ブレージン
グ・シート製の蓋状結合部材を介することによつ
て、偏平管に対する継手部材の取付け方向を規制
することができるため、安定した品質を有する熱
交換器等を得ることができる。Effect According to the coupling device for a joint member and a flat tube, the outer diameter of the annular step provided on the inner circumferential surface of the end of the flat tube connection side of the aluminum cylindrical joint member is the same as that of the tip of the flat tube. Since the diameter of the long side is larger than the diameter of the long side, and the outer circumferential wall of the annular step is thin, the heat capacity of the joint member itself during brazing is small. Therefore, in the case of vacuum brazing, for example, the brazing temperature of the flat tube and the joint member part can be made to be similar to the brazing temperature of the flat pipe and the corrugated fin part,
It is possible to braze the joint member and the flat tube with extremely high accuracy. Therefore, for example, it is possible to precisely braze joint members together with the core of a heat exchanger that is a combination of flat tubes and corrugated fins, and to efficiently manufacture the heat exchanger in a single process. be able to. In addition, by using a lid-like coupling member made of aluminum brazing sheet with flat tube insertion holes, the direction in which the joint member is attached to the flat tube can be regulated, resulting in a heat exchanger with stable quality. etc. can be obtained.
実施例
つぎに、この考案の実施例を図面に基づいて説
明する。Embodiment Next, an embodiment of this invention will be described based on the drawings.
この考案の第１実施例を示す第１図〜第３図に
おいて、雄ねじ部５を有する筒状継手部材１はア
ルミニウム製で、あたかも流体流通孔を有する筒
状の六角ボルトの形状を有しており、この筒状継
手部材１の頭側すなわち偏平管接続側端部１ａの
内周面に、横断面長円形のアルミニウム製偏平管
２の先端部２ａの長い方の直径より大きい外径を
有する環状段部６が設けられて、該継手部材端部
１ａに偏平管先端部差込み部４が形成されてい
る。このように環状段部６の外径が偏平管２の先
端部２ａの長い方の直径よりも大きいものとなさ
れていて、環状段部６の外周壁が薄肉となされて
いる結果、ろう付けにおける継手部材１自体の熱
容量を小さくすることができるものである。 In FIGS. 1 to 3 showing a first embodiment of this invention, a cylindrical joint member 1 having a male threaded portion 5 is made of aluminum and has the shape of a cylindrical hexagonal bolt with a fluid communication hole. The inner peripheral surface of the head side, that is, the flat tube connection side end 1a of this cylindrical joint member 1 has an outer diameter larger than the longer diameter of the tip 2a of the aluminum flat tube 2 having an oval cross section. An annular step portion 6 is provided, and a flat tube tip insertion portion 4 is formed at the end portion 1a of the joint member. As described above, the outer diameter of the annular step 6 is larger than the longer diameter of the tip 2a of the flat tube 2, and the outer circumferential wall of the annular step 6 is made thinner. The heat capacity of the joint member 1 itself can be reduced.
そしてこの環状段部６の内側において継手部材
端部１ａの内壁に流体通過間隙形成用段部３が環
状に設けられ、環状段部３の一部が偏平管先端部
２ａの両側縁部と対向せしめられている。また筒
状継手部材１の同端部１ａに偏平管２の外形と同
じかまたは若干大きい偏平管挿通孔７を有するア
ルミニウム・ブレージング・シートよりなる蓋状
の結合部材８が被せられている。 Inside this annular step 6, a step 3 for forming a fluid passage gap is annularly provided on the inner wall of the joint member end 1a, and a part of the annular step 3 faces both side edges of the flat tube tip 2a. I'm being forced to do it. Further, the same end portion 1a of the cylindrical joint member 1 is covered with a lid-shaped coupling member 8 made of an aluminum brazing sheet having a flat tube insertion hole 7 that is the same as or slightly larger than the outer shape of the flat tube 2.
そして第１図に示すように、４つの流体通路１
０を有する右側の横断面長円形の偏平管２の先端
部２ａが、蓋状結合部材８の挿通孔７を通つて差
込み部４内に差し込まれ、偏平管２の先端部２ａ
が環状段部６に受け止められており、偏平管２の
先端部２ａと内側の段部３との間に、偏平管２の
流体通路１０と継手部材１の流体流通孔とを連絡
する流体通過間隙９が形成せられている。 As shown in FIG.
The distal end 2a of the right-hand flat tube 2 having an oval cross section and having an oval cross section is inserted into the insertion part 4 through the insertion hole 7 of the lid-like coupling member 8, and
is received by the annular step 6, and a fluid passage connecting the fluid passage 10 of the flat tube 2 and the fluid communication hole of the coupling member 1 is provided between the tip 2a of the flat tube 2 and the inner step 3. A gap 9 is formed.
この状態で継手部材１と蓋状結合部材８、およ
び偏平管２と蓋状結合部材８とがそれぞれろう付
けされ、良好なフイレツトが形成されているもの
である。 In this state, the joint member 1 and the lid-like coupling member 8 and the flat tube 2 and the lid-like coupling member 8 are brazed, respectively, and a good fillet is formed.
なお、これら三者のろう付けは、偏平管２とコ
ルゲートフイン（図示略）とを組み合わせた熱交
換器のコアと共に例えば真空ブレージング法によ
り一括してろう付けすることが可能である。 Note that these three components can be brazed together with a core of a heat exchanger in which the flat tube 2 and corrugated fins (not shown) are combined by, for example, a vacuum brazing method.
上記蓋状の結合部材８には、第３図に実線で示
すように、偏平管２の外形と同じかまたは若干大
きい長円形の偏平管挿通孔７が六角形の対向する
両側の角部の方向に設けられているため、偏平管
２は継手部材１に対し同じく六角形の両側の角部
の方向に向つて配置されているが、例えば同図に
２点鎖線で示すように、結合部材８に長円形の偏
平管挿通孔７を六角形の対向する両側の辺の方向
に設けることにより、偏平管２を継手部材１に対
し同じく六角形の両側の辺の方向に向つて配置す
るようにしてもよい。 As shown by the solid line in FIG. 3, the lid-shaped coupling member 8 has an oblong flat tube insertion hole 7 that is the same as or slightly larger than the outer diameter of the flat tube 2, and is formed at both opposite corners of the hexagon. Since the flat tube 2 is provided in the same direction, the flat tube 2 is also arranged toward the opposite corners of the hexagon with respect to the joint member 1. For example, as shown by the two-dot chain line in the same figure, By providing an oblong flat tube insertion hole 7 in 8 in the direction of opposite sides of the hexagon, the flat tube 2 can be arranged with respect to the joint member 1 in the direction of both sides of the hexagon. You may also do so.
また第１図に示すように、左側の冷媒等の流体
導入もしくは排出用円形管１２の先端寄りの部分
には環状の外方突部１３が設けられ、この管１２
に雌ねじ部１５を有する筒状継手部材１１がゆる
く嵌め被せられて、これの端部に設けられた環状
の内方突部１４が管１２の外方突部１３に係り合
わせられ、雌形継手部材１１は回転自在となされ
ている。そしてこの円形管１２の先端部１２ａが
上記偏平管２に設けられた雄形継手部材１内に差
し込まれて、雌形継手部材１１の雌ねじ部１５が
雄形継手部材１の雄ねじ部５にねじ合わされるこ
とにより、両管２，１２が雄雌継手部材１，１１
を介して相互に接続されている。 Further, as shown in FIG. 1, an annular outward protrusion 13 is provided at a portion near the tip of the circular pipe 12 for introducing or discharging fluid such as refrigerant on the left side.
A cylindrical joint member 11 having a female threaded portion 15 is loosely fitted over the cylindrical joint member 11, and an annular inner protrusion 14 provided at the end thereof is engaged with an outer protrusion 13 of the pipe 12, thereby forming a female joint. The member 11 is rotatable. The tip end 12a of this circular tube 12 is inserted into the male joint member 1 provided on the flat tube 2, and the female threaded portion 15 of the female joint member 11 is screwed into the male threaded portion 5 of the male joint member 1. By combining both the pipes 2 and 12, the male and female joint members 1 and 11
are interconnected through.
第４図は、この考案の第２実施例を示すもので
ある。ここで、上記第１実施例の場合と異なる点
は、雄形筒状継手部材１の偏平管接続側端部１ａ
の外周に、環状凹部１６がアルミニウム・ブレー
ジング・シートよりなる蓋状の結合部材８の先端
部の内側に対応するように設けられていて、ろう
付け後、環状凹部１６内において結合部材８と継
手部材１との間に良好なフイレツトが形成せられ
るようになされている点にある。 FIG. 4 shows a second embodiment of this invention. Here, the difference from the first embodiment is that the flat pipe connection side end 1a of the male cylindrical joint member 1
An annular recess 16 is provided on the outer periphery of the aluminum brazing sheet so as to correspond to the inside of the tip of the lid-shaped coupling member 8, and after brazing, the coupling member 8 and the joint are connected within the annular recess 16. The point is that a good fillet is formed between the member 1 and the member 1.
この第２実施例のその他の点は上記第１実施例
の場合と同様であるので、図面において同一のも
のには同一の符号を付した。 The other points of this second embodiment are the same as those of the first embodiment, so the same parts are given the same reference numerals in the drawings.
なお、上記各実施例においては、環状段部６の
内側において継手部材端部１ａの内壁に設けられ
た流体通過間隙形成用段部３は、環状であるが、
これに限らず、この流体通過間隙形成用段部３
は、少なくとも偏平管２の先端部２ａと対向する
位置に設けられおれば良い。 In each of the above embodiments, the fluid passage gap forming step 3 provided on the inner wall of the joint member end 1a inside the annular step 6 is annular;
Not limited to this, this step portion 3 for forming a fluid passage gap
may be provided at least at a position facing the tip 2a of the flat tube 2.
また上記各実施例においては、いわゆるユニオ
ン継手が図示されているが、この考案はこのよう
な形式の継手に適用されるだけでなく、他の形式
の継手にも適用可能であり、その場合には、例え
ば偏平管２の先端部２ａが雌形継手部材すなわち
図示の雄形継手部材１の雄ねじ部５を雌ねじ部に
変えたような雌形継手部材に結合されていてもよ
い。 Furthermore, in each of the above embodiments, a so-called union joint is illustrated, but this invention can be applied not only to these types of joints, but also to other types of joints, and in that case, For example, the tip 2a of the flat tube 2 may be connected to a female joint member, that is, a female joint member in which the male threaded portion 5 of the illustrated male joint member 1 is replaced with a female threaded portion.
考案の効果
この考案による継手部材と偏平管の結合装置
は、上述のように、流体流通孔を有するアルミニ
ウム製筒状継手部材の偏平管接続側端部の内周面
に、アルミニウム製偏平管の先端部の長い方の直
径より大きい外径を有する環状段部が設けられ
て、該継手部材端部に偏平管先端部差込み部が形
成され、この環状段部の内側において継手部材端
部の内壁に流体通過間隙形成用段部が少なくとも
偏平管の先端部と対向する位置に設けられ、継手
部材の同端部に偏平管の外形と同じかまたは若干
大きい偏平管挿通孔を有するアルミニウム・ブレ
ージング・シート製の蓋状結合部材が被せられ、
この蓋状結合部材の挿通孔を通つてかつ上記段部
に対向するように継手部材端部の差込み部内に差
し込まれた偏平管の先端部が、環状段部に受け止
められ、偏平管の先端部と上記段部との間に流体
通過間隙が形成されており、継手部材と蓋状結合
部材、および偏平管と蓋状結合部材とがそれぞれ
ろう付けされているもので、環状段部の外径が偏
平管の先端部の長い方の直径よりも大きいものと
なされていて、環状段部の外周壁が薄肉となされ
ているので、ろう付けにおける継手部材自体の熱
容量が小さいものとなり、これによつてろう付け
のさい継手部材の温度が上がりやすく、従つて例
えば真空ろう付けの場合に偏平管とコルゲートフ
イン部分のろう付け温度に対し、偏平管と継手部
材部分のろう付け温度を同等に近づけることがで
きて、継手部材と偏平管のろう付けをきわめて精
度よく実施することができ、ひいてはすぐれた品
質の熱交換器等を製造し得るとともに、継手部材
を、偏平管とコルゲートフインとを組み合わせた
熱交換器のコアとともに一括して精度よくろう付
けすることが可能であり、熱交換器の製造を単一
工程で能率よく実施することができる。そのう
え、結合部材を介することによつて偏平管に対す
る継手部材の取付け方向を規制することができる
ため、安定した品質を有する熱交換器等を市場に
供給し得るという効果を奏する。Effects of the invention As described above, the coupling device for a joint member and a flat pipe according to this invention has a flat aluminum pipe attached to the inner circumferential surface of the flat pipe connection side end of the aluminum cylindrical joint member having a fluid circulation hole. An annular step having an outer diameter larger than the longer diameter of the tip is provided, a flat tube tip insertion portion is formed at the end of the coupling member, and an inner wall of the end of the coupling member is formed inside the annular step. The aluminum brazing plate is provided with a stepped portion for forming a fluid passage gap at a position facing at least the tip of the flat tube, and has a flat tube insertion hole at the same end of the joint member that is the same as or slightly larger than the outer diameter of the flat tube. Covered with a lid-like connecting member made of sheet,
The tip of the flat tube inserted through the insertion hole of the lid-like coupling member and into the insertion portion of the end of the coupling member so as to face the step is received by the annular step, and the tip of the flat tube A fluid passage gap is formed between the annular step and the outer diameter of the annular step. is larger than the diameter of the longer end of the flat tube, and the outer circumferential wall of the annular step is thin, so the heat capacity of the joint member itself during brazing is small. During brazing, the temperature of the joint member tends to rise. Therefore, in the case of vacuum brazing, for example, the brazing temperature of the flat pipe and the joint member should be similar to the brazing temperature of the flat pipe and the corrugated fin part. This makes it possible to braze the joint member and flat tube with extremely high precision, which in turn makes it possible to manufacture heat exchangers, etc. of excellent quality. It is possible to braze together with the core of the heat exchanger with high precision, and the heat exchanger can be manufactured efficiently in a single process. Furthermore, since the attachment direction of the joint member to the flat tube can be regulated by using the connecting member, it is possible to supply heat exchangers and the like with stable quality to the market.
図面はこの考案の実施例を示すもので、第１図
はこの考案の第１実施例の相互に結合された雄形
継手部材と偏平管の部分切欠き側面図で、同時に
雌形継手部材が図示されている。第２図は第１図
−線に沿う断面図、第３図は第１図−線
に沿う断面図、第４図はこの考案の第２実施例の
相互に結合された雄形継手部材と偏平管の部分切
欠き側面図である。
１……アルミニウム製筒状継手部材、１ａ……
偏平管接続側端部、２……アルミニウム製偏平
管、２ａ……先端部、３……流体通過間隙形成用
段部、４……偏平管先端部差込み部、６……環状
段部、７……偏平管挿通孔、８……アルミニウ
ム・ブレージング・シート製蓋状結合部材、９…
…流体通過間隙、１０……流体通路。
The drawings show an embodiment of this invention, and FIG. 1 is a partially cutaway side view of a male joint member and a flat tube connected to each other in the first embodiment of this invention, and at the same time, a female joint member is shown. Illustrated. 2 is a cross-sectional view taken along the line of FIG. 1, FIG. 3 is a cross-sectional view taken along the line of FIG. FIG. 3 is a partially cutaway side view of the flat tube. 1... Aluminum cylindrical joint member, 1a...
Flat tube connection side end, 2... Aluminum flat tube, 2a... Tip, 3... Fluid passage gap forming step, 4... Flat tube tip insertion part, 6... Annular step, 7 ...Flat tube insertion hole, 8...Lid-like coupling member made of aluminum brazing sheet, 9...
...Fluid passage gap, 10...Fluid passage.
Claims (1)
材１の偏平管接続側端部１ａの内周面に、アルミ
ニウム製偏平管２の先端部２ａの長い方の直径よ
り大きい外径を有する環状段部６が設けられて、
該継手部材端部１ａに偏平管先端部差込み部４が
形成され、この環状段部６の内側において継手部
材端部１ａの内壁に流体通過間隙形成用段部３が
少なくとも偏平管２の先端部２ａと対向する位置
に設けられ、継手部材１の同端部１ａに偏平管２
の外形と同じかまたは若干大きい偏平管挿通孔７
を有するアルミニウム・ブレージング・シート製
の蓋状結合部材８が被せられ、この蓋状結合部材
８の挿通孔７を通つてかつ上記段部３に対向する
ように継手部材端部１ａの差込み部４内に差し込
まれた偏平管２の先端部２ａが、環状段部６に受
け止められ、偏平管２の先端部２ａと上記段部３
との間に流体通過間隙９が形成されており、継手
部材１と蓋状結合部材８、および偏平管２と蓋状
結合部材８とがそれぞれろう付けされている、継
手部材と偏平管の結合装置。 An annular step portion 6 having an outer diameter larger than the longer diameter of the tip portion 2a of the aluminum flat tube 2 is provided on the inner peripheral surface of the flat tube connection side end portion 1a of the aluminum cylindrical joint member 1 having a fluid communication hole. is provided,
A flat tube tip insertion part 4 is formed at the joint member end 1a, and a fluid passage gap forming step 3 is formed on the inner wall of the joint member end 1a inside this annular step 6, at least at the front end of the flat tube 2. 2a, and a flat tube 2 is provided at the same end 1a of the joint member 1.
Flat tube insertion hole 7 that is the same as or slightly larger than the outer diameter of
A lid-like coupling member 8 made of an aluminum brazing sheet having The tip 2a of the flat tube 2 inserted therein is received by the annular step 6, and the tip 2a of the flat tube 2 and the step 3
A fluid passage gap 9 is formed between the joint member 1 and the lid-like joint member 8, and the flat pipe 2 and the lid-like joint member 8 are brazed to each other. Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19296687U JPH0432550Y2 (en) | 1987-12-18 | 1987-12-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19296687U JPH0432550Y2 (en) | 1987-12-18 | 1987-12-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0196594U JPH0196594U (en) | 1989-06-27 |
| JPH0432550Y2 true JPH0432550Y2 (en) | 1992-08-05 |
Family
ID=31483791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19296687U Expired JPH0432550Y2 (en) | 1987-12-18 | 1987-12-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0432550Y2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH087247Y2 (en) * | 1989-10-06 | 1996-03-04 | サンデン株式会社 | Heat exchanger |
| JP5783228B2 (en) * | 2013-11-28 | 2015-09-24 | ゴトコ・ジャパン株式会社 | Oil injection connector and oil change method using the same |
| JP5783227B2 (en) * | 2013-11-28 | 2015-09-24 | ゴトコ・ジャパン株式会社 | Oil change connector and oil change method using the same |
-
1987
- 1987-12-18 JP JP19296687U patent/JPH0432550Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0196594U (en) | 1989-06-27 |
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