JPH0639244Y2 - Heat exchanger pipe - Google Patents

Heat exchanger pipe

Info

Publication number
JPH0639244Y2
JPH0639244Y2 JP1989076462U JP7646289U JPH0639244Y2 JP H0639244 Y2 JPH0639244 Y2 JP H0639244Y2 JP 1989076462 U JP1989076462 U JP 1989076462U JP 7646289 U JP7646289 U JP 7646289U JP H0639244 Y2 JPH0639244 Y2 JP H0639244Y2
Authority
JP
Japan
Prior art keywords
pipe
curved surface
heat exchanger
tube
surface portion
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 - Lifetime
Application number
JP1989076462U
Other languages
Japanese (ja)
Other versions
JPH0321663U (en
Inventor
一夫 中島
恒男 高坂
昇 岡田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Marunaka Co Ltd
Original Assignee
Marunaka Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Marunaka Co Ltd filed Critical Marunaka Co Ltd
Priority to JP1989076462U priority Critical patent/JPH0639244Y2/en
Publication of JPH0321663U publication Critical patent/JPH0321663U/ja
Application granted granted Critical
Publication of JPH0639244Y2 publication Critical patent/JPH0639244Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Description

【考案の詳細な説明】 (産業上の利用分野) 本考案は自動車などのエアコンに使用される熱交換器の
パイプに関するものである。
DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a pipe of a heat exchanger used for an air conditioner of an automobile or the like.

(従来の技術) エアコンの熱交換器は第8図に示すように、冷媒を一方
のパイプAから扁平管状のチューブB内を通過して他方
のパイプCに流れ、更に同パイプCからチューブBを通
ってパイプAへと蛇行して流し、その間にその冷媒に圧
力をかけて強制的に放熱させて同冷媒を低温高圧の冷却
液にするものである。このとき放出される熱はチューブ
Bに伝達され、同チューブB間に設けられたコルゲート
フィンDに伝達され、同コルゲートフィンDに送られた
送風により放散されるようにしてある。
(Prior Art) In a heat exchanger of an air conditioner, as shown in FIG. 8, a refrigerant flows from one pipe A into a flat tubular tube B to another pipe C, and then from the pipe C to a tube B. It flows in a meandering manner through the pipe to the pipe A, and pressure is applied to the refrigerant during that time to forcibly dissipate the heat and the refrigerant becomes a low-temperature and high-pressure cooling liquid. The heat released at this time is transferred to the tubes B, transferred to the corrugated fins D provided between the tubes B, and dissipated by the air blown to the corrugated fins D.

この熱交換器の2本のパイプA、Cは同じ構造のもので
あり、いずれも第7図、第8図に示すように仕切り板E
により長手方向に仕切られている。そして第8図の左側
のパイプAから送り出される冷媒は上三段のチューブB
に供給され、それらのチューブBから右側のパイプCに
送り出された冷媒はそれより下三段のチューブBに送り
込まれ、それらのチューブBからパイプAに送り戻され
た冷媒は更に下三段のチューブBに送られて、多数本の
チューブB内を蛇行しながら流れるようにしてある。通
常、各段のチューブBの本数は下段になるほど少なくし
て、下段になるほど液化してガスよりも流れにくくなる
冷媒が流れ易くなるようにしてある。
The two pipes A and C of this heat exchanger have the same structure, and both have a partition plate E as shown in FIGS.
It is divided in the longitudinal direction by. The refrigerant sent out from the pipe A on the left side of FIG.
The refrigerant supplied to the pipes C on the right side from the tubes B is sent to the tubes B in the lower three stages, and the refrigerant sent back from the tubes B to the pipes A in the lower three stages. It is sent to the tubes B, and is made to flow while meandering in the many tubes B. Usually, the number of tubes B in each stage is decreased as it goes to the lower stage, so that the refrigerant that is liquefied and becomes harder to flow than gas becomes easier to flow toward the lower stage.

従来のパイプAは第7図のようにその周壁にチューブB
を差込むチューブ差込み孔Jと、冷媒仕切り板Eを差し
込む仕切り板差込み孔Kとが形成されていた。しかし同
パイプAは断面形状が真円であるため、チューブ差込み
孔Jをプレス加工などにより形成すると、同差込み孔J
の周縁部分も窪んでパイプAが変形してしまい、内容積
が変化して冷媒の流量が不安定になっったり、チューブ
差込み孔JにチューブBを挿入しにくくなったりすると
いう問題があった。
The conventional pipe A has a tube B on its peripheral wall as shown in FIG.
A tube insertion hole J into which the refrigerant partition plate E is inserted and a partition plate insertion hole K into which the refrigerant partition plate E is inserted are formed. However, since the pipe A has a perfect circular cross-sectional shape, if the tube insertion hole J is formed by pressing or the like, the same insertion hole J
There is a problem that the pipe A is deformed due to the depression of the peripheral part of the pipe A, the internal volume is changed and the flow rate of the refrigerant becomes unstable, and it becomes difficult to insert the tube B into the tube insertion hole J. .

そこで本件考案者は先に第9図に示すように断面楕円形
のパイプAを考案し、実用新案登録出願した。このパイ
プAは楕円形のうち曲面の大きい大曲面部Hにチューブ
差込み孔Jと仕切り板差込み孔Kとが形成されており、
第9図のように仕切り板差込み孔Kに仕切板Lを差込
み、第10図のようにチューブ差込み孔JにチューブBを
差込むようにしたものである。このようにすればチュー
ブ差込み孔Jをプレス加工などにより形成しても同差込
み孔Jの周縁部が窪みにくく、従ってチューブ差込み孔
JにチューブBを挿入し易くなるという利点がある。
Therefore, the present inventor previously devised a pipe A having an elliptical cross section as shown in FIG. 9 and applied for a utility model registration. In this pipe A, a tube insertion hole J and a partition plate insertion hole K are formed in a large curved surface portion H of the elliptical shape having a large curved surface,
The partition plate L is inserted into the partition plate insertion hole K as shown in FIG. 9, and the tube B is inserted into the tube insertion hole J as shown in FIG. In this way, even if the tube insertion hole J is formed by pressing or the like, the peripheral edge portion of the insertion hole J is unlikely to be dented, so that the tube B can be easily inserted into the tube insertion hole J.

(考案が解決しようとする課題) しかし第9図のような断面楕円形のパイプAは曲面の大
きい大曲面部Hと、曲面の小さい小曲面部Iとが一連に
形成された連続体(連続パイプ)であるため、その中を
流れる冷媒に高圧をかけると、大曲面部Hが外側に膨ら
んで変形し易いという欠点がある。しかも、そのように
変形するとパイプAの内容積が変化して冷媒の流量が安
定しないとか、チューブ差込み孔Jとそれに差込まれて
いるチューブBとの間に変形による隙間が生じて、そこ
から冷媒が漏れる虞れがあるといった問題があった。
(Problems to be solved by the invention) However, a pipe A having an elliptical cross section as shown in FIG. 9 is a continuous body (continuous pipe) in which a large curved surface portion H having a large curved surface and a small curved surface portion I having a small curved surface are formed in series. Therefore, when a high pressure is applied to the refrigerant flowing therein, the large curved surface portion H bulges outward and is easily deformed. Moreover, if such deformation occurs, the internal volume of the pipe A changes and the flow rate of the refrigerant becomes unstable, or a gap is formed between the tube insertion hole J and the tube B inserted therein due to the deformation, and from there, There is a problem that the refrigerant may leak.

(考案の目的) 本考案の目的はチューブの差し込みが容易で、高圧冷媒
を流しても変形しにくく、内容積が変化しにくく、冷媒
が洩れる虞れもない熱交換器用パイプを提供することに
ある。
(Object of the Invention) The object of the present invention is to provide a pipe for a heat exchanger in which a tube can be easily inserted, is not easily deformed even when a high-pressure refrigerant is flowed, its internal volume is not easily changed, and the refrigerant is not likely to leak. is there.

(課題を解決するための手段) 本考案の熱交換器用パイプは、第2図の様に、対向する
2本のパイプ1に形成された二以上のチューブ差込み孔
3の夫々にチューブBが差込まれ、隣接するチューブB
間にコルゲートフィンDが配置固定されてなる熱交換器
の前記パイプにおいて、パイプ1の断面形状が大曲面部
5と小曲面部8とが一連に形成された楕円形であり、そ
のパイプ1の小曲面部8にその周壁2を外側又は内側に
突出させて成形した変形部4をパイプ1の長手方向に沿
って形成してなるものである。
(Means for Solving the Problem) In the heat exchanger pipe of the present invention, as shown in FIG. 2, the tube B is inserted into each of the two or more tube insertion holes 3 formed in the two opposed pipes 1. Tube B that is inserted and adjacent
In the pipe of the heat exchanger in which the corrugated fins D are arranged and fixed between the pipes, the cross-sectional shape of the pipe 1 is an ellipse in which a large curved surface portion 5 and a small curved surface portion 8 are formed in series, and the pipe 1 is small. The curved portion 8 is formed with a deformed portion 4 formed by projecting the peripheral wall 2 outward or inward along the longitudinal direction of the pipe 1.

(作用) 本考案の熱交換器用パイプは、第1図のようにパイプ1
の断面形状が大曲面部5と小曲面部8とが一連に形成さ
れた楕円形であり、そのパイプ1の小曲面部8にその周
壁2を外側又は内側に突出させて成形した変形部4をパ
イプ1の長手方向に沿って形成してなるので、同じ内容
積を有する断面真円または断面楕円形のパイプに比し
て、その周壁の垂直方向への引張及び圧縮強度が高い。
これは引張及び圧縮応力が最も歪みの大きい箇所、即ち
変形部4に集中し、他の部分にかかる応力が少なくなる
ためである。従って、本考案の熱交換器用パイプは高圧
冷媒を流してもパイプ1が変形しにくく、チューブ差込
み孔3や仕切り板差込み孔4を同パイプ1の周壁2に形
成しても同差込み孔3の周縁部が窪みにくくなる。
(Operation) As shown in FIG. 1, the pipe for heat exchanger of the present invention is a pipe 1
Has an elliptical shape in which a large curved surface portion 5 and a small curved surface portion 8 are formed in series, and a deformed portion 4 formed by projecting the peripheral wall 2 outward or inward is formed on the small curved surface portion 8 of the pipe 1. Since it is formed along the longitudinal direction of the pipe 1, the tensile and compressive strength of the peripheral wall in the vertical direction is higher than that of a pipe having the same inner volume and a perfect circular or elliptical cross section.
This is because the tensile and compressive stress concentrates on the portion having the largest strain, that is, the deformed portion 4, and the stress applied to other portions is reduced. Therefore, in the heat exchanger pipe of the present invention, the pipe 1 is not easily deformed even when a high-pressure refrigerant is flowed, and even if the tube insertion hole 3 and the partition plate insertion hole 4 are formed in the peripheral wall 2 of the pipe 1, the same insertion hole 3 is formed. The peripheral portion is less likely to be dented.

(実施例1) 第1図は本考案の熱交換器用パイプの第1の実施例であ
る。このパイプ1は曲面の大きい大曲面部5と曲面の小
さい小曲面部8とが一連に形成されて断面楕円形に形成
されており、同パイプ1の周壁2のうち対向位置にある
両小曲面部8にその周壁2を外側に突出させた変形部4
が形成されてなる。この変形部4は周壁2の小曲面部8
の外側の肉を押し潰して外側に突出させることにより形
成されてなる。この変形部4はパイプ1の長手方向全長
に形成されてなる。また、前記パイプ1の周壁2のうち
対向位置にある一方の大曲面部5にはチューブ差込み孔
3が、他方の大曲面部5には仕切り板差込み孔6が、プ
レス加工などにより形成されてなる。
(Embodiment 1) FIG. 1 is a first embodiment of a heat exchanger pipe of the present invention. The pipe 1 has a large curved surface portion 5 having a large curved surface and a small curved surface portion 8 having a small curved surface formed in series to form an elliptical cross section. Both small curved surface portions of the peripheral wall 2 of the pipe 1 at opposite positions. Deformation part 4 in which peripheral wall 2 is projected outward
Are formed. The deformed portion 4 is a small curved surface portion 8 of the peripheral wall 2.
It is formed by crushing the meat on the outside of the and projecting it to the outside. The deformed portion 4 is formed over the entire length of the pipe 1 in the longitudinal direction. Further, a tube insertion hole 3 is formed in one large curved surface portion 5 of the peripheral wall 2 of the pipe 1 facing each other, and a partition plate insertion hole 6 is formed in the other large curved surface portion 5 by press working or the like.

(実施例2) 第3図は本考案の熱交換器用パイプの第2の実施例であ
る。このパイプ1はその周壁2のうち対向位置にある二
つの小曲面部8のうち一方の小曲面部8に同周壁2を外
側に突出させた変形部4が形成されてなる。この変形部
4も周壁2の両外側の肉を押し潰して外側に突出させる
ことにより形成されてなる。この変形部4もパイプ1の
長手方向全長に形成されてなる。
(Embodiment 2) FIG. 3 is a second embodiment of the heat exchanger pipe of the present invention. The pipe 1 has a deformed portion 4 formed by projecting the peripheral wall 2 to the outside on one small curved surface portion 8 of the two small curved surface portions 8 at opposite positions of the peripheral wall 2. The deformed portion 4 is also formed by crushing the meat on both outer sides of the peripheral wall 2 and projecting it outward. The deformed portion 4 is also formed over the entire length of the pipe 1 in the longitudinal direction.

(実施例3) 第4図は本考案の熱交換器用パイプの第3の実施例であ
る。このパイプ1はその周壁2のうち対向位置にある二
つの小曲面部8のうち、一方の小曲面部8に同周壁2を
外側に突出させた変形部4が形成されてなる。この変形
部4も周壁2の両外側の肉を押し潰して外側に突出させ
ることにより形成されてなる。この場合、周壁2の肉が
重合するように押し潰して外側に突出させてある。
(Embodiment 3) FIG. 4 shows a third embodiment of the heat exchanger pipe of the present invention. Of the two small curved surface portions 8 of the peripheral wall 2 facing each other, the pipe 1 has a deformed portion 4 formed on one of the small curved surface portions 8 with the peripheral wall 2 protruding outward. The deformed portion 4 is also formed by crushing the meat on both outer sides of the peripheral wall 2 and projecting it outward. In this case, the flesh of the peripheral wall 2 is crushed so as to be superposed and projected outward.

(実施例4) 第5図は本考案の熱交換器用パイプの第4の実施例であ
る。このパイプ1はパイプ1の周壁2のうち対向位置に
ある二つの小曲面部8の肉を内側に押込んで変形部4を
形成してなる。
(Embodiment 4) FIG. 5 is a fourth embodiment of the heat exchanger pipe of the present invention. This pipe 1 is formed by pushing inwardly the meat of two small curved surface portions 8 at opposite positions on the peripheral wall 2 of the pipe 1 to form a deformed portion 4.

(その他の実施例) 本考案における変形部4の形状は図示したもの以外であ
ってもよい。変形部4は第1図のようにパイプ1の長手
方向全長に一連に形成するのではなく、例えば第6図の
ように冷媒の内圧がかかりにくい仕切り板7の付近には
形成せず、チューブ差込み孔3の部分にだけ間欠的に形
成してもよい。
(Other Embodiments) The shape of the deformable portion 4 in the present invention may be other than that shown. The deformed portion 4 is not formed in series over the entire length in the longitudinal direction of the pipe 1 as shown in FIG. 1, but is not formed near the partition plate 7 where the internal pressure of the refrigerant is less likely to be applied, as shown in FIG. You may form intermittently only in the part of the insertion hole 3.

(使用例) 本考案のパイプを使用するには第2図のようにパイプ1
のチューブ差込み孔3にチューブBを、仕切り板差込み
孔6に仕切り板7を夫々差込み、更に隣接するチューブ
B間にコルゲートフィンDを配置固定して、パイプ1と
仕切り板7とチューブBとコルゲートフィンDをロー付
けして熱交換器を形成する。この場合、パイプ1、仕切
り板7、チューブBの夫々のロー付けする部分に予めロ
ー材を塗布しておき、パイプ1を加熱するとそのロー材
が融解してロー付けされるようにすると便利である。
(Example of use) To use the pipe of the present invention, as shown in FIG.
The tube B is inserted into the tube insertion hole 3 and the partition plate 7 is inserted into the partition plate insertion hole 6, and the corrugated fins D are arranged and fixed between the adjacent tubes B to fix the pipe 1, the partition plate 7, the tube B and the corrugated gate. The fins D are brazed to form the heat exchanger. In this case, it is convenient to apply the brazing material to the brazing portions of the pipe 1, the partition plate 7 and the tube B in advance, and melt the brazing material by heating the pipe 1 so that the brazing material is brazed. is there.

(考案の効果) 本考案の熱交換器用パイプはパイプ1の断面形状が大曲
面部5と小曲面部8とが一連に形成された楕円形であ
り、そのパイプ1の小曲面部8にその周壁2を外側又は
内側に突出させて成形した変形部4をパイプ1の長手方
向に沿って形成してなるので次のような各種効果があ
る。
(Effect of the Invention) In the pipe for heat exchanger of the present invention, the cross-sectional shape of the pipe 1 is an elliptical shape in which the large curved surface portion 5 and the small curved surface portion 8 are formed in series, and the peripheral wall of the small curved surface portion 8 of the pipe 1 is formed. Since the deformed portion 4 formed by projecting 2 toward the outside or inside is formed along the longitudinal direction of the pipe 1, the following various effects are obtained.

.パイプ1の周壁2の垂直方向への引張及び圧縮強度
が高くなるので、パイプ1内に高圧冷媒を流してもパイ
プ1が変形しにくく、その内容積が変化することがな
い。また前記変形に伴って冷媒が洩れる虞れもない。
. Since the tensile and compressive strength of the peripheral wall 2 of the pipe 1 in the vertical direction is increased, the pipe 1 is unlikely to be deformed even when a high-pressure refrigerant is flown into the pipe 1, and the internal volume thereof is not changed. Further, there is no fear that the refrigerant will leak due to the deformation.

.パイプ1の周壁にチューブ差込み孔3や仕切り板差
込み孔6を形成する場合、その周縁部が窪みにくくな
り、それらの差込み孔にチューブBを差込み易くなる。
. When the tube insertion hole 3 and the partition plate insertion hole 6 are formed in the peripheral wall of the pipe 1, the peripheral edge portions thereof are less likely to be recessed, and the tube B is easily inserted into those insertion holes.

【図面の簡単な説明】[Brief description of drawings]

第1図は本考案の熱交換器用パイプの一実施例を示す説
明図、第2図は同パイプを使用した自動車用熱交換器の
説明図、第3図〜第6図は本考案の熱交換器用パイプの
他の各種実施例を示す説明断面図、第7図は従来の熱交
換器用パイプを使用した熱交換器の組立説明図、第8図
は同熱交換器における冷媒の流れを示す説明図、第9図
は本件出願のパイプよりも先に開発された熱交換器用パ
イプの分解図、第10図は同パイプの組立説明図である。 1はパイプ 2は周壁 3はチューブ差込み孔 4は変形部
FIG. 1 is an explanatory view showing an embodiment of a heat exchanger pipe of the present invention, FIG. 2 is an explanatory view of an automobile heat exchanger using the pipe, and FIGS. 3 to 6 are heat exchangers of the present invention. Explanatory sectional views showing other various examples of the exchanger pipe, FIG. 7 is an assembly explanatory diagram of a heat exchanger using a conventional heat exchanger pipe, and FIG. 8 shows a refrigerant flow in the same heat exchanger. Explanatory drawing, FIG. 9 is an exploded view of a heat exchanger pipe developed prior to the pipe of the present application, and FIG. 10 is an assembly explanatory view of the same pipe. 1 is a pipe 2 is a peripheral wall 3 is a tube insertion hole 4 is a deformed portion

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 【請求項1】対向する2本のパイプ1に形成された二以
上のチューブ差込み孔3の夫々にチューブBが差込ま
れ、隣接するチューブB間にコルゲートフィンDが配置
固定されてなる熱交換器の前記パイプにおいて、パイプ
1の断面形状が大曲面部5と小曲面部8とが一連に形成
された楕円形であり、そのパイプ1の小曲面部8にその
周壁2を外側又は内側に突出させて成形した変形部4を
パイプ1の長手方向に沿って形成してなることを特徴と
する熱交換器用パイプ。
1. A heat exchange in which a tube B is inserted into each of two or more tube insertion holes 3 formed in two opposing pipes 1, and corrugated fins D are arranged and fixed between adjacent tubes B. In the pipe of the container, the cross-sectional shape of the pipe 1 is an ellipse in which a large curved surface portion 5 and a small curved surface portion 8 are formed in series, and the peripheral wall 2 is projected outward or inward from the small curved surface portion 8 of the pipe 1. A heat exchanger pipe, characterized in that the deformed portion 4 thus formed is formed along the longitudinal direction of the pipe 1.
JP1989076462U 1989-06-29 1989-06-29 Heat exchanger pipe Expired - Lifetime JPH0639244Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1989076462U JPH0639244Y2 (en) 1989-06-29 1989-06-29 Heat exchanger pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1989076462U JPH0639244Y2 (en) 1989-06-29 1989-06-29 Heat exchanger pipe

Publications (2)

Publication Number Publication Date
JPH0321663U JPH0321663U (en) 1991-03-05
JPH0639244Y2 true JPH0639244Y2 (en) 1994-10-12

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
JP1989076462U Expired - Lifetime JPH0639244Y2 (en) 1989-06-29 1989-06-29 Heat exchanger pipe

Country Status (1)

Country Link
JP (1) JPH0639244Y2 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100519992B1 (en) * 2003-10-31 2005-10-11 모딘코리아 유한회사 Header pipe for heat exchanger and header pipe manufactoring method
JP7412446B2 (en) * 2019-12-13 2024-01-12 三菱電機株式会社 refrigerator

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JPH02287094A (en) * 1989-04-26 1990-11-27 Zexel Corp Heat exchanger

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JPH0321663U (en) 1991-03-05

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