JPH045911Y2 - - Google Patents
Info
- Publication number
- JPH045911Y2 JPH045911Y2 JP548887U JP548887U JPH045911Y2 JP H045911 Y2 JPH045911 Y2 JP H045911Y2 JP 548887 U JP548887 U JP 548887U JP 548887 U JP548887 U JP 548887U JP H045911 Y2 JPH045911 Y2 JP H045911Y2
- Authority
- JP
- Japan
- Prior art keywords
- connector
- heat exchanger
- aluminum alloy
- exchanger tube
- flange
- 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
- 229910000838 Al alloy Inorganic materials 0.000 claims description 16
- 239000003507 refrigerant Substances 0.000 claims description 7
- 238000004891 communication Methods 0.000 claims description 4
- 239000011777 magnesium Substances 0.000 description 15
- 238000005219 brazing Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 7
- 238000005242 forging Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000004907 flux Effects 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- ORUIBWPALBXDOA-UHFFFAOYSA-L magnesium fluoride Chemical compound [F-].[F-].[Mg+2] ORUIBWPALBXDOA-UHFFFAOYSA-L 0.000 description 2
- 229910001635 magnesium fluoride Inorganic materials 0.000 description 2
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000009972 noncorrosive effect Effects 0.000 description 1
- SKFYTVYMYJCRET-UHFFFAOYSA-J potassium;tetrafluoroalumanuide Chemical compound [F-].[F-].[F-].[F-].[Al+3].[K+] SKFYTVYMYJCRET-UHFFFAOYSA-J 0.000 description 1
Landscapes
- Branch Pipes, Bends, And The Like (AREA)
- Details Of Heat-Exchange And Heat-Transfer (AREA)
Description
【考案の詳細な説明】
［考案の目的］
（産業上の利用分野）
本考案は、自動車用空気調和装置のコンデンサ
又はエバポレータ等の熱交換器側の伝熱管と、こ
の熱交換器に冷媒等を導入する導管とを連結する
熱交換器用継手構造に関する。[Detailed description of the invention] [Purpose of the invention] (Field of industrial application) The present invention is based on a heat exchanger tube on the side of a heat exchanger such as a condenser or evaporator of an automobile air conditioner, and a refrigerant etc. in this heat exchanger. This invention relates to a joint structure for a heat exchanger that connects a conduit that introduces a heat exchanger.
（従来の技術）
例えば、自動車用空気調和装置のコンデンサ
は、第３図に示すように伝熱管１とコルゲートフ
イン２からなるコア部３を有し、このコア部３の
両側には枠板４を設けており、この枠板４はブラ
ケツト（図示せず）を介して車体側と連結し、前
記コンデンサを固定保持している。(Prior Art) For example, as shown in FIG. 3, a condenser for an automobile air conditioner has a core portion 3 consisting of heat transfer tubes 1 and corrugated fins 2, and frame plates 4 are provided on both sides of the core portion 3. The frame plate 4 is connected to the vehicle body via a bracket (not shown) to securely hold the capacitor.
このコンデンサは、第４図に示すように前記伝
熱管１とコンプレツサ（図示せず）からの冷媒等
を導く導管５とを継手部６により連結している
が、この継手部６は前記伝熱管１の端部にろう付
接合されたコネクタ７と、前記導管５に固着され
た配管フランジ８とを有し、前記コネクタ７に開
設した連通部９にフランジ８の突出管１０を凹凸
嵌合し、前記コネクタ７を貫通して設けられたね
じ孔１１にボルト１２を螺着することにより前記
コネクタ７とフランジ８とを連結するようになつ
ている。 In this condenser, as shown in FIG. 4, the heat exchanger tube 1 and a conduit 5 for guiding refrigerant from a compressor (not shown) are connected by a joint 6. 1, and a piping flange 8 fixed to the conduit 5, and a protruding pipe 10 of the flange 8 is fitted into a concave-convex portion in a communicating portion 9 opened in the connector 7. The connector 7 and the flange 8 are connected by screwing a bolt 12 into a screw hole 11 provided through the connector 7.
（考案が解決しようとする問題点）
この従来の継手部６は、配管取付時の作業性及
び連結した後の継手自体の小形化を考慮して、前
記コネクタ７をブロツク化してあり、しかもボル
ト１２を用いてフランジ８とともに螺着してもこ
のコネクタ７がねじ強度を有しかつ変形しないよ
うに、比較的硬い材料（例えばMg系のアルミニ
ウム合金）で構成している。(Problems to be Solved by the Invention) This conventional joint part 6 has the connector 7 made into a block in consideration of workability during piping installation and miniaturization of the joint itself after connection. The connector 7 is made of a relatively hard material (for example, Mg-based aluminum alloy) so that it has thread strength and does not deform even if it is screwed together with the flange 8 using the connector 12.
しかも、このようにすれば、コネクタ７は熱容
量が大きく、アルミニウム合金製の伝熱管１とコ
ネクタ７とをろう付連結する場合に、コア部３と
コネクタ７との昇温スピードが相違し、炉中一体
ろう付ができないという不都合がある。 Moreover, with this configuration, the connector 7 has a large heat capacity, and when the heat exchanger tube 1 made of aluminum alloy and the connector 7 are connected by brazing, the temperature rise speed of the core part 3 and the connector 7 is different, and the furnace There is a disadvantage that it is not possible to braze the center piece.
また、このコネクタ７は前述のように比較的硬
いMg系を含むアルミニウム合金であるために、
非腐触性フラツクス（ノコロツクフラツクス）を
用いたろう付方法（以下単にNB工法）ではろう
付性が悪いという欠点もある。つまり、NB工法
のフラツクス（K3AlF6＋KAlF4）のフツ化アル
ミニウムカリ塩のフツ素とマグネシウムが反応
し、フツ化マグネシウムMgF2を形成する。この
フツ化マグネシウムがろう付の際ろう付の流動性
を阻害し、ろう付できないことになる。 In addition, since this connector 7 is made of an aluminum alloy containing relatively hard Mg as mentioned above,
The brazing method (hereinafter referred to simply as the NB method) using non-corrosive flux (Nokorotsu flux) also has the disadvantage of poor brazing properties. In other words, the fluorine of the potassium aluminum fluoride salt of the flux (K 3 AlF 6 +KAlF 4 ) of the NB method reacts with magnesium to form magnesium fluoride MgF 2 . This magnesium fluoride inhibits the fluidity of brazing during brazing, making it impossible to braze.
本考案は、上述した従来技術に伴う欠点、問題
点を解決するためになされたもので、コネクタの
炉中一体ろう付を可能とし、しかもフランジとコ
ネクタを連結する時に使用するねじ部のねじ強度
も低下しないという優れた熱交換器用継手構造を
提供することを目的とするものである。 The present invention was made to solve the drawbacks and problems associated with the conventional technology described above, and it enables integral brazing of the connector in a furnace, and also has the strength of the threaded part used when connecting the flange and the connector. It is an object of the present invention to provide an excellent joint structure for a heat exchanger that does not reduce the heat exchanger.
［考案の構成］
（問題点を解決するための手段）
かかる目的を達成するために、本考案は、熱交
換器のコア部を構成する伝熱管の端部に取付けた
コネクタと、前記伝熱管に冷媒等を導く導管の端
部に取付けたフランジとを有し、前記導管からの
冷媒を伝熱管に導入するように前記コネクタ側に
設けた連通部とフランジ側の突出部とを凹凸嵌合
し、ボルトにより締付け連結するようにした熱交
換器用継手構造において、前記コネクタを鍛造成
形容易な低Mgのアルミニウム合金により構成す
るとともに前記連通部を薄肉化した本体部より膨
出成形し、このコネクタに開設された前記ボルト
が螺合する部分の下孔内に、高Mgのアルミニウ
ム合金により構成したナツト部を回動不能に圧入
したことを特徴とするものである。[Structure of the invention] (Means for solving the problem) In order to achieve the above object, the present invention provides a connector attached to an end of a heat exchanger tube that constitutes a core portion of a heat exchanger, and a connector attached to an end of a heat exchanger tube that constitutes a core portion of a heat exchanger. and a flange attached to the end of a conduit that guides refrigerant, etc. to the heat exchanger tube, and a protruding part on the flange side is fitted with a protrusion on the flange side and a communicating part provided on the connector side so as to introduce the refrigerant from the conduit into the heat transfer tube. In this joint structure for a heat exchanger, the connector is made of a low-Mg aluminum alloy that can be easily forged, and the communication portion is bulged from a thinned main body. The present invention is characterized in that a nut made of a high Mg aluminum alloy is press-fitted in a non-rotatable manner into a prepared hole in a portion where the bolt is screwed.
（作用）
このように本考案では、コネクタを低Mgのア
ルミニウム合金により構成するとともに連通部を
薄肉化した本体部より膨出したので、このコネク
タを鍛造により成形でき、しかも薄肉化、軽量化
を図ることにより熱容量を小さくすることがで
き、これにより炉中ろう付が可能となり、また、
ボルトと螺合するナツト部のみを硬い高Mgのア
ルミニウム合金により構成し、これを軟い低Mg
のアルミニウムよりなるコネクタに圧入したの
で、この継手部の大部分をNB工法により仕上げ
ることもできるようになる。(Function) In this way, in the present invention, the connector is made of a low-Mg aluminum alloy, and the communicating portion bulges out from the thinned main body, so the connector can be formed by forging, and it can also be made thinner and lighter. This makes it possible to reduce the heat capacity, which makes furnace brazing possible, and
Only the nut part that screws into the bolt is made of a hard, high-Mg aluminum alloy, and this is replaced with a soft, low-Mg aluminum alloy.
Since it was press-fitted into a connector made of aluminum, most of the joint can be finished using the NB method.
（実施例）
以下、図面を参照して本考案の一実施例を説明
する。(Example) Hereinafter, an example of the present invention will be described with reference to the drawings.
第１図は本考案の一実施例を示す要部分解斜視
図、第２図は第１図の−線に沿う断面図であ
り、第３，４図に示す部材と同一部材には同一符
号を付してある。 Fig. 1 is an exploded perspective view of essential parts showing an embodiment of the present invention, Fig. 2 is a sectional view taken along the - line in Fig. 1, and the same members as those shown in Figs. 3 and 4 have the same reference numerals. is attached.
この熱交換器の継手部２０は、前記熱交換器の
コア部３を構成する伝熱管一の端部に取付けたコ
ネクタ７と、前記伝熱管１に冷媒を導く導管５の
端部に取付けたフランジ８とを有している。 The joint part 20 of this heat exchanger is connected to a connector 7 attached to an end of one of the heat exchanger tubes constituting the core part 3 of the heat exchanger, and to an end of a conduit 5 that leads refrigerant to the heat exchanger tube 1. It has a flange 8.
前記コネクタ７は、プレート状の本体部２１よ
り伝熱管１と連通する連通部９を鍛造により膨出
成形し、前記フランジ８側の突出部１０をこの連
通部９に嵌挿し、ボルト１２をボルト孔２２を挿
通して両者を締付けて連結するようになつてい
る。 In the connector 7, a communicating portion 9 that communicates with the heat exchanger tube 1 is formed by forging from a plate-shaped main body portion 21, and the protruding portion 10 on the flange 8 side is fitted into the communicating portion 9, and the bolt 12 is inserted into the communicating portion 9. The two are inserted through the hole 22 and tightened to connect them.
特に本実施例では、前記コネクタ７はNB工法
によるろう付性が良好でかつ鍛造成形容易な低
Mgのアルミニウム合金、例えば、A3003又は
A6061等のようにMgの含有率が1.0％以下の材質
のものを使用して構成してある。 In particular, in this embodiment, the connector 7 has good brazing properties by the NB method and is a low-temperature material that can be easily forged.
Mg aluminum alloy, e.g. A3003 or
It is constructed using a material with a Mg content of 1.0% or less, such as A6061.
このようにすれば、このコネクタ７を鍛造成形
する場合に、前記本体部２１を薄肉化でき、しか
もこの本体部２１から前記連通部９を容易に膨出
成形することもできる。このコネクタ７の全体の
重量を所定値以下とすることができ、しかも熱容
量を従来のものよりはかなり小さくすることがで
きることになる。 In this way, when forging the connector 7, the main body portion 21 can be made thinner, and the communicating portion 9 can be easily bulged from the main body portion 21. The overall weight of the connector 7 can be kept below a predetermined value, and the heat capacity can be made considerably smaller than that of the conventional connector.
したがつて、このコネクタ７と伝熱管１とを炉
中ろう付する場合にも、両者間の昇温スピードの
相違がなくなり、炉中で一体ろう付が可能とな
り、それだけ製造コストが低減できる。 Therefore, even when the connector 7 and the heat transfer tube 1 are brazed in a furnace, there is no difference in temperature increase speed between the two, making it possible to integrally braze the connector 7 and the heat exchanger tube 1 in the furnace, and the manufacturing cost can be reduced accordingly.
また、前記コネクタ７に開設された前記ボルト
１２が螺合する部分の下孔２３を段付のものと
し、この下孔２３内に、高Mgのアルミニウム合
金、例えば、A7N01等により構成したナツト部
２４を回動不能（例えば、ナツト２４の外周にロ
ーレツト等を形成する）に圧入している。 Further, the pilot hole 23 of the connector 7 where the bolt 12 is screwed is provided with a step, and a nut portion made of a high Mg aluminum alloy such as A7N01 is inserted into the pilot hole 23. 24 is press-fitted so that it cannot rotate (for example, a knurl or the like is formed on the outer periphery of the nut 24).
このようにすれば、前記コネクタ７の部分を
NB工法により伝熱管１と一体ろう付する場合で
も優れたろう付性をもつて接合でき、しかもボル
ト１２と螺合するナツト部２４は硬質の材料であ
るため、前記ボルト１２と螺合する場合にも何等
問題がない。 In this way, the connector 7 part can be
Even when integrally brazed with the heat exchanger tube 1 using the NB method, it can be joined with excellent brazing properties, and since the nut portion 24 that is screwed with the bolt 12 is made of a hard material, when screwed with the bolt 12, There is no problem at all.
しかも、このナツト部２４の圧入端部２４ａと
コネクタ７の本体部２１の端面２１ａとの間に
は、僅かではあるが、寸法にずれｌを形成してあ
る。 Furthermore, there is a slight deviation l between the press-fit end 24a of the nut 24 and the end surface 21a of the main body 21 of the connector 7.
これは、前記ボルト１２により締付け固定した
場合に低Mgの本体部２１が加圧変形しても、こ
のコネクタ７と前記フランジ８との密着状態を良
好に保つことができる。 This makes it possible to maintain good contact between the connector 7 and the flange 8 even if the low-Mg main body 21 is deformed under pressure when the bolts 12 are tightened and fixed.
なお、コネクタ７の両側に開設されたボルト孔
を一側に設けるとこのコネクタ７を一側で固定で
き取付作業が便利になる。 Note that if the bolt holes opened on both sides of the connector 7 are provided on one side, the connector 7 can be fixed on one side, making the installation work convenient.
［考案の効果］
以上述べたように、本考案によれば、コネクタ
をNBろう付することができかつ鍛造成形容易な
低Mgのアルミニウム合金により構成するととも
に薄肉化した本体部より前記連通部を膨出成形
し、このコネクタに開設された前記ボルトが螺合
する部分の下孔内に、硬質の高Mgのアルミニウ
ム合金により構成したナツト部を回動不能に圧入
したため、コネクタを鍛造により成形でき、しか
も薄肉化、軽量化を図ることにより熱容量を小さ
くすることができ、これにより炉中一体ろう付が
可能となり、また、ボルトと螺合するナツト部の
みを硬いアルミニウム合金により構成し、これを
低Mgのアルミニウム合金よりなるコネクタに圧
入したので、この継手部の大部分をNB工法によ
り仕上げることもできることになる。[Effects of the invention] As described above, according to the invention, the connector is made of a low-Mg aluminum alloy that can be NB brazed and easily forged, and the communication portion is connected to the main body with a thinner wall. A nut made of a hard, high-Mg aluminum alloy was press-fitted in a non-rotatable manner into the pilot hole of the connector where the bolt was threaded, so the connector could not be formed by forging. Moreover, by making the walls thinner and lighter, the heat capacity can be reduced, which enables integral brazing in the furnace.Also, only the nut part that screws into the bolt is made of a hard aluminum alloy, and this Since it was press-fitted into a connector made of a low-Mg aluminum alloy, most of the joint can be finished using the NB method.
第１図は、本考案の一実施例を示す要部分解斜
視図、第２図は第１図の−線に沿う断面図、
第３図は、従来のコンデンサの部分正面図、第４
図は従来の継手部分の分解断面図である。
１……伝熱管、３……熱交換器のコア部、５…
…導管、７……コネクタ、８……フランジ、９…
…連通部、１０……突出部、１２……ボルト、２
１……本体部、２３……下孔、２４……ナツト
部。
FIG. 1 is an exploded perspective view of essential parts showing an embodiment of the present invention, FIG. 2 is a sectional view taken along the line - in FIG. 1,
Figure 3 is a partial front view of a conventional capacitor;
The figure is an exploded sectional view of a conventional joint part. 1... Heat exchanger tube, 3... Core part of heat exchanger, 5...
...Conduit, 7...Connector, 8...Flange, 9...
...Communication part, 10...Protrusion part, 12...Bolt, 2
1... Main body part, 23... Pilot hole, 24... Nut part.
Claims (1)
に取付けたコネクタ７と、前記伝熱管１に冷媒等
を導く導管５の端部に取付けたフランジ８とを有
し、前記導管５からの冷媒を伝熱管１に導入する
ように前記コネクタ側に設けた連通部９とフラン
ジ側の突出部１０とを凹凸嵌合し、ボルト１２に
より締付け連結するようにした熱交換器用継手構
造において、前記コネクタ７を鍛造成形容易な低
Mgのアルミニウム合金により構成するとともに
薄肉化した本体部２１より前記連通部９を膨出成
形し、このコネクタ７に開設された前記ボルト１
２が螺合する部分の下孔２３内に、高Mgのアル
ミニウム合金により構成したナツト部２４を回動
不能に圧入してなる熱交換器用継手構造。 The conduit 5 has a connector 7 attached to the end of the heat exchanger tube 1 constituting the core part 3 of the heat exchanger, and a flange 8 attached to the end of the conduit 5 that guides refrigerant etc. to the heat exchanger tube 1. In the joint structure for a heat exchanger, the communication part 9 provided on the connector side and the protrusion part 10 on the flange side are fitted in a concave-convex manner and are tightened and connected by bolts 12 so as to introduce refrigerant from the connector into the heat exchanger tube 1. , the connector 7 is easily forged and formed into a low
The communicating portion 9 is formed to bulge from the main body portion 21 which is made of Mg aluminum alloy and has a thinner wall, and the bolt 1 is opened in the connector 7.
A joint structure for a heat exchanger in which a nut part 24 made of a high Mg aluminum alloy is press-fitted into a pilot hole 23 in a part where the parts 2 and 2 are screwed together, in a non-rotatable manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP548887U JPH045911Y2 (en) | 1987-01-20 | 1987-01-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP548887U JPH045911Y2 (en) | 1987-01-20 | 1987-01-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63116788U JPS63116788U (en) | 1988-07-28 |
| JPH045911Y2 true JPH045911Y2 (en) | 1992-02-19 |
Family
ID=30787117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP548887U Expired JPH045911Y2 (en) | 1987-01-20 | 1987-01-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH045911Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5525805B2 (en) * | 2009-12-07 | 2014-06-18 | 株式会社ケーヒン・サーマル・テクノロジー | Heat exchanger |
| SE1550140A1 (en) * | 2015-02-09 | 2016-08-10 | Titanx Engine Cooling Holding Ab | Port flange for a heat exchanger, heat exchanger comprising a port flange and method of making a port flange |
-
1987
- 1987-01-20 JP JP548887U patent/JPH045911Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63116788U (en) | 1988-07-28 |
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