JPH07117349B2 - Heat exchanger - Google Patents
Heat exchangerInfo
- Publication number
- JPH07117349B2 JPH07117349B2 JP30296987A JP30296987A JPH07117349B2 JP H07117349 B2 JPH07117349 B2 JP H07117349B2 JP 30296987 A JP30296987 A JP 30296987A JP 30296987 A JP30296987 A JP 30296987A JP H07117349 B2 JPH07117349 B2 JP H07117349B2
- Authority
- JP
- Japan
- Prior art keywords
- tube
- flat side
- heat exchanger
- butt
- 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 - Fee Related
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
- F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
- F28F3/04—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element
- F28F3/042—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element in the form of local deformations of the element
- F28F3/044—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element in the form of local deformations of the element the deformations being pontual, e.g. dimples
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
- B21C37/15—Making tubes of special shape; Making tube fittings
- B21C37/156—Making tubes with wall irregularities
- B21C37/158—Protrusions, e.g. dimples
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D1/03—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits
- F28D1/0391—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits a single plate being bent to form one or more conduits
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は熱交換器に関するもので、例えば自動車用暖房
装置のヒータコアとして用いることができる。The present invention relates to a heat exchanger and can be used as, for example, a heater core of a heating system for an automobile.
〔従来の技術〕 従来、熱交換器に用いられるチューブとして、第４図に
示す様な複数の突起2a,2bを有するものが知られている
（例えば、特公昭59−500877号公報）。このチューブ１
は帯状板材の両端部を突き合せ溶接し、互いに向い合う
２つの偏平側面101,102を有する偏平形状に成形されて
いる。そして、突き合せ溶接部３は２つの偏平側面101,
102の連結部に位置せしめられ、複数の突起2a,2bは両偏
平側面101,102に２列に並んで配されている。[Prior Art] Conventionally, as a tube used for a heat exchanger, a tube having a plurality of projections 2a and 2b as shown in Fig. 4 is known (for example, Japanese Patent Publication No. 59-500877). This tube 1
Is formed into a flat shape having two flat side surfaces 101 and 102 facing each other by butt welding both ends of the strip-shaped plate material. Then, the butt weld 3 has two flat side surfaces 101,
The plurality of protrusions 2a and 2b are located at the connecting portion of the 102, and are arranged in two rows on both flat side surfaces 101 and 102.
このようなチューブ１において、複数の突起2a,2bは帯
状板材を丸める以前にプレス成形により形成されるもの
で、このプレス時には多大な力が帯状板材に作用する。
特に突き合せ溶接部３に近い位置にある突起2aを成形す
る際には、そのプレス力が突き合せ端部まで影響し、第
５図に示す様に突き合せ端部3a,3bが波打ち状に歪んで
しまう。その結果、端部3a,3bを溶接しても良好に溶接
するのが難しく、溶接不良が発生するという問題があ
る。In such a tube 1, the plurality of protrusions 2a, 2b are formed by press molding before rolling the strip-shaped plate material, and a great force acts on the strip-shaped plate material during this pressing.
In particular, when the protrusion 2a located near the butt weld 3 is formed, the pressing force affects the butt end, and the butt ends 3a and 3b become wavy as shown in FIG. It will be distorted. As a result, it is difficult to weld well even if the ends 3a and 3b are welded, and there is a problem that welding failure occurs.
そこで本発明では、偏平チューブの一方の偏平側面の略
中央部に突き合せ溶接部を位置させ、他方の偏平側面の
みに複数の突起を形成した。In view of this, in the present invention, the butt welded portion is positioned substantially at the center of one flat side surface of the flat tube, and the plurality of protrusions are formed only on the other flat side surface.
従って、突起と溶接部とが異なる偏平側面に位置してい
るので、突起を形成した際の応力の溶接部への影響が殆
ど無く、帯状板材の突き合せ端部に歪が発生することな
く良好に溶接を行うことができる。Therefore, since the protrusion and the welded portion are located on different flat side surfaces, there is almost no effect on the welded portion due to the stress when the protrusion is formed, and there is no distortion at the butt end of the strip-shaped plate material, which is good. Welding can be done on.
第１図は本発明の実施例のチューブ１を示す図で、第１
図（ａ）はチューブ１の正面図、第１図（ｂ）はその側
面図である。チューブ１は互いに向い合う偏平側面101,
102を有し、第１の偏平側面101の略中心部にはチューブ
１の長手方向に直線状に延びる突き合せ溶接部３が位置
している。第２の偏平側面102にはチューブ１の内方に
向って突出する複数の突起2a,2bが２列並んでチューブ
１の長手方向に形成されている。この突起2a,2bはチュ
ーブ１内を流れる複数交換流体の流れを攪拌し、熱交換
効率を促進させるためのもので、第１図に示す実施例で
は長円形をなす形状である。ただし、この突起2a,2bの
個々の形状は長円形に限るものではなく、円形，四角
形，三角形等の変形が可能である。FIG. 1 is a diagram showing a tube 1 according to an embodiment of the present invention.
FIG. 1A is a front view of the tube 1, and FIG. 1B is a side view thereof. The tube 1 has flat sides 101 facing each other,
A butt weld portion 3 having a line 102 and extending linearly in the longitudinal direction of the tube 1 is located substantially in the center of the first flat side surface 101. On the second flat side surface 102, a plurality of protrusions 2a, 2b projecting inward of the tube 1 are formed in two rows in the longitudinal direction of the tube 1. The protrusions 2a, 2b are for agitating the flow of a plurality of exchange fluids flowing in the tube 1 to promote heat exchange efficiency, and in the embodiment shown in FIG. 1, they have an oval shape. However, the individual shapes of the protrusions 2a and 2b are not limited to the elliptical shape, and can be modified into a circular shape, a quadrangular shape, a triangular shape, or the like.
次にこのチューブ１の製造手順について説明する。第６
図（ａ）〜（ｇ）はチューブ１の製造行程を示す模式図
である。まず、帯状板材100に一対のポンチ201とダイス
200を用いて突起2a,2bをプレス形成する（第６図
（ａ））。次に帯状板材100の突き合せ端部3a,3bがＲ形
状になるよう一対のポンチ203とダイス204にてプレスす
る（第６図（ｂ））。次に突起2aと突起2bの中間位置に
ポンチ206を押し当て、Ｖ字状のダイス205に沿わせて帯
状板材100をＵ字状に成形する（第６図（ｃ））。そし
てこのＶ字状になった帯状板材100を円管となるよう成
形し（第６図（ｄ））、その突き合せ端部を溶接する
（第６図（ｅ））。そして一対のローラ（省図示）等を
用いて円管を徐々に偏平状になし（第６図（ｆ））、溶
接部３が一偏平側面の略中心部に位置するようにして偏
平チューブ１を完成させる（第６図（ｇ））。Next, a procedure for manufacturing the tube 1 will be described. Sixth
(A)-(g) is a schematic diagram which shows the manufacturing process of the tube 1. First, a pair of punches 201 and a die are attached to the strip plate material 100.
The protrusions 2a and 2b are press formed using 200 (FIG. 6 (a)). Next, a pair of punches 203 and a die 204 are pressed so that the abutting ends 3a, 3b of the strip plate material 100 have an R shape (FIG. 6 (b)). Next, the punch 206 is pressed against an intermediate position between the protrusion 2a and the protrusion 2b, and the strip-shaped plate material 100 is formed into a U-shape along the V-shaped die 205 (FIG. 6 (c)). Then, the V-shaped strip-shaped plate material 100 is formed into a circular tube (Fig. 6 (d)), and its butt ends are welded (Fig. 6 (e)). The circular tube is gradually flattened by using a pair of rollers (not shown), etc. (Fig. 6 (f)), and the flat tube 1 is positioned so that the welded portion 3 is located at the substantially central portion of one flat side surface. Is completed (Fig. 6 (g)).
第２図は本発明を自動車用暖房装置のヒータコア30とし
て用いた場合の斜視図である。このヒータコア300はエ
ンジン（省図示）からの温水を入口パイプ301より受け
入れる入口タンク302と、熱交換されて低温となった温
水を再びエンジン側に戻す出口パイプ305を有する出口
タンク304と、中間タンク303とを有する。そして入口タ
ンク302と中間タンク303は複数本のチューブ１で連通さ
れ、また中間タンク303と出口タンク304ともチューブ１
にて連通されている。従って、入口タンク302内に流入
した温水はチューブ１内を流れて中間タンク303内に流
れ込み、さらにチューブ１を流れて出口タンク304内に
流れ込む。FIG. 2 is a perspective view when the present invention is used as a heater core 30 of an automobile heating system. The heater core 300 includes an inlet tank 302 that receives hot water from an engine (not shown) through an inlet pipe 301, an outlet tank 304 that has an outlet pipe 305 that returns the hot water that has become low temperature due to heat exchange to the engine side, and an intermediate tank. And 303. The inlet tank 302 and the intermediate tank 303 are connected by a plurality of tubes 1, and the intermediate tank 303 and the outlet tank 304 are also connected to the tube 1.
Are communicated with. Therefore, the hot water flowing into the inlet tank 302 flows through the tube 1 into the intermediate tank 303, and further flows through the tube 1 into the outlet tank 304.
チューブ１は二列に並んで複数本配されるもので、互い
に隣り合うチューブ１の間には波状に折り曲げられたコ
ルゲートフィン５が接合されている。A plurality of tubes 1 are arranged in two rows, and corrugated fins 5 bent in a wave shape are joined between the tubes 1 adjacent to each other.
第３図は入口タンク部302の部分を示す部分断面図であ
る。複数のチューブ１の一端は端板306に固定され、こ
の端板306に入口タンク302が接合されている。FIG. 3 is a partial sectional view showing a portion of the inlet tank portion 302. One ends of the plurality of tubes 1 are fixed to an end plate 306, and the inlet tank 302 is joined to the end plate 306.
第１図は本発明実施例チューブを示すもので（ａ）は正
面図、（ｂ）は側面図、第２図は実施例を示す斜視図、
第３図は第２図の一部断面斜視図、第４図は従来のチュ
ーブを示す図、第５図は従来のチューブを示す斜視図、
第６図は実施例チューブの製造行程を示す模式図であ
る。 １……偏平チューブ,2a,2b……突起,3……溶接部。FIG. 1 shows an embodiment tube of the present invention, (a) is a front view, (b) is a side view, and FIG. 2 is a perspective view showing an embodiment,
3 is a partial sectional perspective view of FIG. 2, FIG. 4 is a view showing a conventional tube, FIG. 5 is a perspective view showing a conventional tube,
FIG. 6 is a schematic diagram showing a manufacturing process of the example tube. 1 ... Flat tube, 2a, 2b ... Protrusion, 3 ... Welded part.
Claims (1)
交換を行なわしめるチューブを有する熱交換器におい
て、 前記チューブは帯状部材の両端部を突き合せ溶接されて
成るもので、互いに向い合う二つの偏平側面を有する偏
平形状をなし、一方の偏平側面の略中央部に前記突き合
せ溶接部を有し、他方の偏平側面のみにチューブ内部に
向って突出する複数の突起を有することを特徴とする熱
交換器。Claim: What is claimed is: 1. A heat exchanger having a tube through which a fluid to be heat-exchanged flows inside and exchanges heat with external air, wherein the tubes are formed by butt-welding both ends of a belt-shaped member, and the tubes face each other. It has a flat shape having two flat side faces that match each other, and has the butt welded portion at approximately the center of one flat side face, and has a plurality of protrusions that project toward the inside of the tube only on the other flat side face. Characteristic heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30296987A JPH07117349B2 (en) | 1987-11-30 | 1987-11-30 | Heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30296987A JPH07117349B2 (en) | 1987-11-30 | 1987-11-30 | Heat exchanger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01142393A JPH01142393A (en) | 1989-06-05 |
| JPH07117349B2 true JPH07117349B2 (en) | 1995-12-18 |
Family
ID=17915340
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP30296987A Expired - Fee Related JPH07117349B2 (en) | 1987-11-30 | 1987-11-30 | Heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07117349B2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE521816C2 (en) * | 1999-06-18 | 2003-12-09 | Valeo Engine Cooling Ab | Fluid transport pipes and vehicle coolers |
| SE517450C2 (en) | 1999-06-18 | 2002-06-04 | Valeo Engine Cooling Ab | Fluid transport tubes and methods and apparatus for producing the same |
| JP4638583B2 (en) * | 2000-09-11 | 2011-02-23 | チタンエックス エンジン クーリング ホールディング アクチボラグ | Fluid transport tube and automotive cooler comprising the tube |
| CN103485878B (en) * | 2013-09-05 | 2015-08-12 | 安徽汇展热交换系统有限公司 | A kind of Vehicular water tank core |
| CN113718488A (en) * | 2021-08-16 | 2021-11-30 | 青岛海尔洗衣机有限公司 | Put in module and clothing processing apparatus |
-
1987
- 1987-11-30 JP JP30296987A patent/JPH07117349B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01142393A (en) | 1989-06-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |