JPH09178385A - Heat exchanger - Google Patents
Heat exchangerInfo
- Publication number
- JPH09178385A JPH09178385A JP33356095A JP33356095A JPH09178385A JP H09178385 A JPH09178385 A JP H09178385A JP 33356095 A JP33356095 A JP 33356095A JP 33356095 A JP33356095 A JP 33356095A JP H09178385 A JPH09178385 A JP H09178385A
- Authority
- JP
- Japan
- Prior art keywords
- longitudinal direction
- flat tube
- tube
- flat
- heat exchanger
- 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
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
-
- 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
- F28D1/0308—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 the conduits being formed by paired plates touching each other
- F28D1/0325—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 the conduits being formed by paired plates touching each other the plates having lateral openings therein for circulation of the heat-exchange medium from one conduit to another
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2225/00—Reinforcing means
- F28F2225/04—Reinforcing means for conduits
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、プレス成形された
チューブプレートを複数枚積層して組み立てられた熱交
換器に関するもので、ラジエータ等のタンク内に内蔵さ
れたオイルクーラに用いて好適である。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat exchanger assembled by laminating a plurality of press-molded tube plates, and is suitable for use in an oil cooler built in a tank such as a radiator. .
【０００２】[0002]
【従来の技術】ラジエータ等のタンク内に内蔵されたオ
イルクーラは、図５の（ｂ）に示すように、複数本の偏
平チューブ１を積層して形成されており、この偏平チュ
ーブ１は、その厚み方向に結合した２枚のチューブプレ
ート２から構成されている。このチューブプレート２
は、例えば図５の（ａ）に示すように、表面積を増加さ
せて熱交換効率の向上を図るためにリブ状の突起部３が
形成されており、この突起部３は、チューブプレート２
のプレス加工時に、チューブプレート２とともに一体形
成されている。2. Description of the Related Art An oil cooler built in a tank such as a radiator is formed by laminating a plurality of flat tubes 1 as shown in FIG. 5 (b). It is composed of two tube plates 2 joined in the thickness direction. This tube plate 2
For example, as shown in FIG. 5A, rib-shaped protrusions 3 are formed in order to increase the surface area and improve the heat exchange efficiency.
Is integrally formed with the tube plate 2 at the time of press working.
【０００３】[0003]
【発明が解決しようとする課題】しかし、突起部３をチ
ューブプレート２とともにプレス加工にて一体形成して
いるため、特にチューブプレート２の厚みが薄い（０．
１〜１．０ｍｍ）とき等は、プレス加工後、図６に示す
ように、長手方向およびチューブ幅方向に「ねじり」や
「そり」等が発生するという問題が発生していた。However, since the projection 3 is integrally formed with the tube plate 2 by press working, the tube plate 2 is particularly thin (0.
In the case of 1 to 1.0 mm), there has been a problem that "twist" or "warp" occurs in the longitudinal direction and the tube width direction after pressing, as shown in FIG.
【０００４】そこで、発明者等はこの「ねじり」や「そ
り」等の発生原因を調査するため、図７の（ａ）〜
（ｃ）に示すように、種々の形状の突起部３を有するチ
ューブプレート２を試作検討したところ、以下の点が明
らかになった。すなわち、チューブプレート２および突
起部３を形成するプレス加工によってチューブプレート
２内に残留応力が発生する。そして、突起部３の形状や
形成位置等により、残留応力の方向が一定方向に集中し
たときに、大きな「ねじり」や「そり」等が発生するも
のである。Therefore, in order to investigate the cause of the occurrence of "twist" or "warp", the inventors of the present invention have investigated the causes of (a)-(a) in FIG.
As shown in (c), when the tube plate 2 having the protrusions 3 of various shapes was experimentally studied, the following points were clarified. That is, a residual stress is generated in the tube plate 2 by the press work for forming the tube plate 2 and the protrusion 3. Due to the shape and formation position of the protrusions 3, when the residual stress is concentrated in a certain direction, a large "twist" or "warp" occurs.
【０００５】本発明は、上記点に鑑み、チューブプレー
トのプレス加工時に発生する残留応力方向が一方向に集
中することを抑制することによって、チューブプレート
のプレス加工後に発生する「ねじり」や「そり」等を抑
制することを目的とする。In view of the above points, the present invention suppresses the residual stress direction generated during the press working of the tube plate from concentrating in one direction, so that the "twist" or "warp" that occurs after the press working of the tube plate is suppressed. ", Etc.
【０００６】[0006]
【課題を解決するための手段】本発明は、上記目的を達
成するために、以下の技術的手段を用いる。請求項１に
記載の発明では、チューブプレート（２）には、プレス
加工にて複数本の突条（３）が、偏平チューブ（１）長
手方向に対して傾いた状態で千鳥状に形成されている。
この突条（３）の傾きは、偏平チューブ（１）の長手方
向に平行な中心軸（Ｌ1 ）に対して対称であり、かつ、
偏平チューブ（１）の長手方向に平行な中心軸（Ｌ1 ）
に対して直角で偏平チューブ（１）の長手方向の中央部
を通る軸（Ｌ2 ）に対称に形成されていることを特徴と
する。The present invention uses the following technical means in order to achieve the above object. In the invention according to claim 1, a plurality of ridges (3) are formed on the tube plate (2) by press working in a zigzag shape in a state of being inclined with respect to the longitudinal direction of the flat tube (1). ing.
The inclination of the ridge (3) is symmetrical with respect to the central axis (L 1 ) parallel to the longitudinal direction of the flat tube (1), and
Central axis (L 1 ) parallel to the longitudinal direction of the flat tube ( 1 )
Is formed at right angles to the axis (L 2 ) passing through the central portion of the flat tube (1) in the longitudinal direction.
【０００７】請求項２に記載の発明では、請求項１に記
載の熱交換器において、突条（３）の長手方向と偏平チ
ューブ（１）の長手方向に平行な中心軸（Ｌ1 ）とのな
す角度（θ）が、偏平チューブ（１）の長手方向の中央
部に向けて凸となるように突条（３）が形成されている
ことを特徴とする。次に作用効果を述べる。According to a second aspect of the present invention, in the heat exchanger according to the first aspect, a central axis (L 1 ) parallel to the longitudinal direction of the protrusion (3) and the longitudinal direction of the flat tube ( 1 ) is provided. The ridge (3) is formed so that the angle (θ) formed by the ridge becomes convex toward the central portion in the longitudinal direction of the flat tube (1). Next, the function and effect will be described.
【０００８】請求項１、２に記載の発明によれば、突条
（３）は、偏平チューブ（１）長手方向に対して傾いた
状態で千鳥状に形成されているので、チューブプレート
（２）のねじり方向残留応力を相殺することができる。
したがって、チューブプレート２の「ねじり」を抑制す
ることができる。また、突条（３）の傾きは、偏平チュ
ーブ１の長手方向中心軸（Ｌ1 ）に対して対称であり、
かつ、偏平チューブ（１）の長手方向の中央部を通り、
偏平チューブ（１）の長手方向中心軸（Ｌ1 ）に対して
直角な軸（Ｌ2 ）に対称に形成されているので、残留応
力の方向が一方向に集中することを抑制することができ
る。したがって、チューブプレート（２）の「そり」を
抑制することができる。According to the first and second aspects of the invention, since the ridges (3) are formed in a zigzag shape in a state of being inclined with respect to the longitudinal direction of the flat tube (1), the tube plate (2) is formed. ) Residual stress in the torsion direction can be canceled.
Therefore, “twisting” of the tube plate 2 can be suppressed. The inclination of the ridge (3) is symmetrical with respect to the central axis (L 1 ) in the longitudinal direction of the flat tube 1,
And, passing through the central portion of the flat tube (1) in the longitudinal direction,
Because it is formed symmetrically to an axis perpendicular (L 2) to the longitudinal central axis (L 1) of the flat tube (1), it is possible to prevent the direction of the residual stress is concentrated in one direction . Therefore, the "warpage" of the tube plate (2) can be suppressed.
【０００９】以上のように、チューブプレート（２）の
「ねじり」や「そり」を抑制することができるので、チ
ューブプレート（２）単品の仕上がり精度が向上する。
したがって、熱交換器の組付け作業性が向上するととも
に、ろう付け等の結合不良の低減を図ることができる。
延いては、熱交換器の製造原価低減を図ることができ
る。As described above, since the "twist" and "warp" of the tube plate (2) can be suppressed, the finishing accuracy of the tube plate (2) alone is improved.
Therefore, the workability of assembling the heat exchanger can be improved, and the coupling failure such as brazing can be reduced.
As a result, the manufacturing cost of the heat exchanger can be reduced.
【００１０】さらに、突条３の傾きは、偏平チューブ
（１）の長手方向の中央部を通り、偏平チューブ（１）
の長手方向中心軸（Ｌ1 ）に対して直角な軸（Ｌ2 ）に
対称に形成されているので、チューブプレート（２）を
長手方向のいずれ方向からでも組付けることができる。
したがって、熱交換器の組付け性作業性が向上するの
で、前述の効果と相まって、より熱交換器の製造原価低
減を図ることができる。Further, the inclination of the ridge 3 passes through the central portion of the flat tube (1) in the longitudinal direction, and the flat tube (1)
Since it is formed symmetrically with respect to the axis (L 2 ) perpendicular to the central axis (L 1 ) in the longitudinal direction, the tube plate (2) can be assembled from any of the longitudinal directions.
Therefore, since the workability of assembling the heat exchanger is improved, the manufacturing cost of the heat exchanger can be further reduced in combination with the above effect.
【００１１】[0011]
【発明の実施の形態】以下、本発明を図に示す実施の形
態について説明する。 （第１実施形態）図１は本実施形態に係る熱交換器を、
ラジエータタンク内蔵型のオイルクーラ（エンジンオイ
ルの冷却を行う熱交換器）に適用したものである。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing an embodiment of the present invention; (First Embodiment) FIG. 1 shows a heat exchanger according to the present embodiment.
It is applied to an oil cooler (heat exchanger that cools engine oil) with a built-in radiator tank.
【００１２】このオイルクーラは、図１の（ｂ）に示す
ように、複数本の偏平チューブ１を積層して形成されて
おり、この偏平チューブ１は、図２に示すように、その
厚み方向にろう付け等の手段により結合した２枚のチュ
ーブプレート２から構成されている。チューブプレート
２は、その幅方向断面をコの字状として形成されてお
り、断面コの字側面部２ａを互いに接触させて結合して
いる。As shown in FIG. 1 (b), this oil cooler is formed by laminating a plurality of flat tubes 1. The flat tube 1 has its thickness direction as shown in FIG. It is composed of two tube plates 2 joined together by means such as brazing. The tube plate 2 is formed to have a U-shaped cross section in the width direction, and the side surfaces 2a having a U-shaped cross section are brought into contact with each other to be joined.
【００１３】そして、２枚のチューブプレート２によっ
て形成されている空間２ｂは、エンジンオイルの流れる
通路を形成し、この通路（空間２ｂ）内には、エンジン
オイルとの接触面積を増加させて熱交換効率の向上を図
るインナーフィン２ｃが、チューブプレート２の内壁面
にろう付け等の手段により結合している。さらに、チュ
ーブプレート２には、図１の（ａ）に示すように、チュ
ーブプレート２の表面積を増加させて、エンジンオイル
と外部流体（この場合は、ラジエータタンク内を流れる
エンジン冷却水）との熱交換効率の向上を図るためにリ
ブ状の突条３が複数本形成されている。この突条３は、
図３に示すように、空間２ｂ外方側に突出するように、
チューブプレート２のプレス加工とともにチューブプレ
ート２に一体形成されている。A space 2b formed by the two tube plates 2 forms a passage through which engine oil flows, and a contact area with the engine oil is increased in the passage (space 2b) to increase heat. Inner fins 2c for improving exchange efficiency are joined to the inner wall surface of the tube plate 2 by means such as brazing. Further, as shown in (a) of FIG. 1, the tube plate 2 has an increased surface area so that the engine oil and the external fluid (in this case, engine cooling water flowing in the radiator tank) are separated from each other. Plural rib-shaped protrusions 3 are formed to improve heat exchange efficiency. This ridge 3 is
As shown in FIG. 3, so as to project to the outside of the space 2b,
It is integrally formed with the tube plate 2 together with the press working of the tube plate 2.
【００１４】また、突条３は、図１の（ａ）に示すよう
に、偏平チューブ１長手方向に対して傾いた状態で千鳥
状に形成されている。そして、この突条３の傾きは、偏
平チューブ１の長手方向に平行な中心軸Ｌ1 に対して対
称であり、かつ、偏平チューブ１の長手方向の中央部を
通り、偏平チューブ１の長手方向に平行な中心軸Ｌ1に
対して直角な軸Ｌ2 に対称に形成されている。さらに、
それらの突条３は、その長手方向と偏平チューブ１の長
手方向に平行な中心軸Ｌ1 とのなす角度θが、偏平チュ
ーブ１の長手方向の中央部に向けて凸となるように偏平
チューブ１長手方向に対して傾いている。なお、この角
度θは、０°〜１８０°（但し、９０°は除く）が望ま
しく、本実施形態では、約６０°である。As shown in FIG. 1 (a), the ridges 3 are formed in a zigzag shape in a state of being inclined with respect to the longitudinal direction of the flat tube 1. The inclination of the ridge 3 is symmetric with respect to the central axis L 1 parallel to the longitudinal direction of the flat tube 1, and passes through the central portion of the flat tube 1 in the longitudinal direction. Are formed symmetrically with respect to an axis L 2 which is perpendicular to the central axis L 1 which is parallel to. further,
These ridges 3 are flat tubes so that the angle θ between the longitudinal direction and the central axis L 1 parallel to the longitudinal direction of the flat tube 1 is convex toward the central portion of the flat tube 1 in the longitudinal direction. 1 Inclined with respect to the longitudinal direction. The angle θ is preferably 0 ° to 180 ° (excluding 90 °), and is about 60 ° in this embodiment.
【００１５】また、チューブプレート２およびインナー
フィン２ｃは、熱伝導に優れ、かつ軽量なアルミニウム
合金製であり、その厚みは、０．１〜１．０ｍｍであ
る。ところで、偏平チューブ１の両端部は、図１、７に
示すように、各偏平チューブ１間には、スペーサ４が挿
入されており、このスペーサ４によって各偏平チューブ
１間に所定の隙間が形成されている。そして、各チュー
ブプレート２の両端部は、バーリング形状を有する穴５
が形成されており、各チューブプレート２は、それぞれ
の穴５が重なって貫通するように積層されている。この
穴５とスペーサ４とからオイルクーラのタンク部６（図
１の（ｂ）参照）を形成し、このタンク部６によって各
偏平チューブ１にエンジンオイルが分配し、熱交換を終
え冷えたエンジンオイルを各偏平チューブ１から集合さ
せている。The tube plate 2 and the inner fins 2c are made of aluminum alloy which is excellent in heat conduction and lightweight, and has a thickness of 0.1 to 1.0 mm. By the way, as shown in FIGS. 1 and 7, at both ends of the flat tubes 1, spacers 4 are inserted between the flat tubes 1, and a predetermined gap is formed between the flat tubes 1 by the spacers 4. Has been done. And, both ends of each tube plate 2 have holes 5 having a burring shape.
Are formed, and the tube plates 2 are stacked so that the holes 5 overlap with each other and penetrate therethrough. A tank portion 6 (see FIG. 1B) of the oil cooler is formed from the hole 5 and the spacer 4, and the engine oil is distributed to each flat tube 1 by the tank portion 6 and the heat exchange is completed to cool the engine. Oil is collected from each flat tube 1.
【００１６】次に、オイルクーラの作動について述べ
る。上述のように、本実施形態に係るオイルクーラは、
ラジエータタンクに内蔵されており、ラジエータタンク
内の冷却水の流れは、図１の（ｂ）に示すように、偏平
チューブ１と平行である。また、エンジンオイルは、偏
平チューブ１の一端側の流出入口７ｂから流入し、タン
ク部６により各偏平チューブ１に分配されて、偏平チュ
ーブ１内の空間２ｂを他端側のタンク部６に向けて流れ
る。そして、エンジンオイルは、偏平チューブ１内を流
れる間に冷却水との間に熱交換されて冷却される。Next, the operation of the oil cooler will be described. As described above, the oil cooler according to the present embodiment is
The cooling water is built in the radiator tank, and the flow of cooling water in the radiator tank is parallel to the flat tube 1 as shown in FIG. Further, the engine oil flows in from the outflow port 7b on one end side of the flat tube 1 and is distributed to each flat tube 1 by the tank portion 6, so that the space 2b in the flat tube 1 is directed to the tank portion 6 on the other end side. Flowing. The engine oil is cooled by heat exchange with the cooling water while flowing through the flat tube 1.
【００１７】次に本実施形態の特徴を述べる。突条３
は、図１の（ａ）に示すように、偏平チューブ１長手方
向に対して傾いた状態で千鳥状に形成されているので、
チューブプレート２のねじり方向残留応力を相殺するこ
とができる。したがって、チューブプレート２の「ねじ
り」を抑制することができる。Next, the features of this embodiment will be described. Ridge 3
As shown in (a) of FIG. 1, since the flat tubes are formed in a zigzag shape in a state inclined with respect to the longitudinal direction of the flat tube 1,
The residual stress in the torsion direction of the tube plate 2 can be canceled out. Therefore, “twisting” of the tube plate 2 can be suppressed.
【００１８】また、突条３の傾きは、偏平チューブ１の
長手方向に平行な中心軸Ｌ1 に対して対称であり、か
つ、偏平チューブ１の長手方向に平行な中心軸Ｌ1 に対
して直角で偏平チューブ１の長手方向の中央部を通る軸
Ｌ2 に対称に形成されているので、残留応力の方向が一
方向に集中することを抑制することができる。したがっ
て、チューブプレート２の「そり」を抑制することがで
きる。The inclination of the ridges 3 is symmetrical with respect to the central axis L 1 parallel to the longitudinal direction of the flat tube 1 and with respect to the central axis L 1 parallel to the longitudinal direction of the flat tube 1 . Since it is formed at a right angle and symmetrically with respect to the axis L 2 passing through the central portion of the flat tube 1 in the longitudinal direction, it is possible to suppress the residual stress from being concentrated in one direction. Therefore, the "warpage" of the tube plate 2 can be suppressed.
【００１９】以上のように、チューブプレート２の「ね
じり」や「そり」を抑制することができるので、チュー
ブプレート２単品の仕上がり精度が向上する。したがっ
て、オルクーラの組付け作業性が向上するとともに、ろ
う付け等の結合不良の低減を図ることができる。延いて
は、オルクーラの製造原価低減を図ることができる。さ
らに、突条３の傾きは、偏平チューブ１の長手方向の中
央部を通り、偏平チューブ１の長手方向中心軸Ｌ1 に対
して直角な軸Ｌ2 に対称に形成されているので、チュー
ブプレート２を長手方向のいずれ方向からでも組付ける
ことができる。したがって、オルクーラの組付け性作業
性が向上するので、前述の効果と相まって、よりオルク
ーラの製造原価低減を図ることができる。As described above, since "twisting" and "warping" of the tube plate 2 can be suppressed, the finishing accuracy of the tube plate 2 alone is improved. Therefore, the workability of assembling the orcooler can be improved, and the connection failure such as brazing can be reduced. As a result, the manufacturing cost of the orcooler can be reduced. Further, since the inclination of the ridges 3 passes through the central portion in the longitudinal direction of the flat tube 1 and is formed symmetrically with the axis L 2 orthogonal to the central axis L 1 in the longitudinal direction of the flat tube 1, the tube plate is formed. 2 can be assembled from any of the longitudinal directions. Therefore, the assembling workability of the orcooler is improved, and the manufacturing cost of the orcooler can be further reduced in combination with the above-mentioned effect.
【００２０】（第２実施形態）上述の実施形態では、突
条３は、その長手方向と偏平チューブ１の長手方向に平
行な中心軸Ｌ1 とのなす角度θが、偏平チューブ１の長
手方向の中央部に向けて凸となるように偏平チューブ１
長手方向に対して傾いていたが、図４に示すように、偏
平チューブ１の端部に向けて凸となるように傾けても本
発明を実施することができる。(Second Embodiment) In the above-described embodiment, the protrusion 3 has an angle θ between the longitudinal direction of the ridge 3 and the central axis L 1 parallel to the longitudinal direction of the flat tube 1 in the longitudinal direction of the flat tube 1. Flat tube 1 so that it becomes convex toward the center of
Although it is inclined with respect to the longitudinal direction, the present invention can be implemented by inclining so as to be convex toward the end portion of the flat tube 1 as shown in FIG.
【００２１】ところで、本発明に係る熱交換器は、ラジ
エータタンク内蔵型の熱交換器に限られるものではな
く、エンジン内蔵型であってもよい。The heat exchanger according to the present invention is not limited to the radiator tank built-in type heat exchanger, but may be an engine built-in type.
【図１】本発明の第１実施形態を示す図であり、（ａ）
は正面図、（ｂ）は側面図である。FIG. 1 is a diagram showing a first embodiment of the present invention, (a)
Is a front view, and (b) is a side view.
【図２】図１（ａ）のＡ−Ａ断面図である。FIG. 2 is a sectional view taken along the line AA of FIG.
【図３】図１（ａ）のＢ−Ｂ断面図である。FIG. 3 is a sectional view taken along line BB of FIG.
【図４】本発明の第２実施形態を示す正面図である。FIG. 4 is a front view showing a second embodiment of the present invention.
【図５】従来技術の説明をするための説明図である。FIG. 5 is an explanatory diagram for explaining a conventional technique.
【図６】従来技術に係るチューブプレートの「ねじり」
および「そり」を示す斜視図である。FIG. 6 “Twist” of a tube plate according to the prior art
FIG. 3 is a perspective view showing “sledding”.
【図７】試作品に係るチューブプレートの正面図であ
る。FIG. 7 is a front view of a tube plate according to a prototype.
１…偏平チューブ、２…チューブプレート、３…突条、
４…スペーサ。1 ... flat tube, 2 ... tube plate, 3 ... ridge,
4 ... Spacer.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 山中 章 愛知県刈谷市昭和町１丁目１番地 日本電 装株式会社内 (72)発明者 兵藤 正和 愛知県刈谷市昭和町１丁目１番地 日本電 装株式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Akira Yamanaka 1-1, Showa-cho, Kariya city, Aichi Nihon Denso Co., Ltd. (72) Inventor Masakazu Hyodo 1-1-chome, Showa-cho, Kariya city, Aichi Nidec Within the corporation
Claims (2)
（１）を有し、この偏平チューブ（１）外部を流れる被
熱交換流体と前記流体との間で熱交換を行う熱交換器で
あって、 前記偏平チューブ（１）は、その厚み方向に結合した２
枚のチューブプレート（２）から構成されており、 前記チューブプレート（２）には、プレス加工にて複数
本の突条（３）が、前記偏平チューブ（１）長手方向に
対して傾いた状態で千鳥状に形成されており、 前記突条（３）の傾きは、前記偏平チューブ（１）の長
手方向に平行な中心軸（Ｌ1 ）に対して対称であり、か
つ、前記偏平チューブ（１）の長手方向に平行な中心軸
（Ｌ1 ）に対して直角で前記偏平チューブ（１）の長手
方向の中央部を通る軸（Ｌ2 ）に対称に形成されている
ことを特徴とする熱交換器。1. A heat exchanger having a plurality of flat tubes (1) through which a fluid flows, and performing heat exchange between a fluid to be heat-exchanged flowing outside the flat tubes (1) and the fluid. , The flat tube (1) is joined in the thickness direction 2
The tube plate (2) comprises a plurality of tube plates (2), and a plurality of ridges (3) are formed on the tube plate (2) by press working and are inclined with respect to the longitudinal direction of the flat tube (1). And the inclination of the ridges (3) is symmetrical with respect to the central axis (L 1 ) parallel to the longitudinal direction of the flat tube (1), and the flat tube (3) 1) is formed at right angles to the central axis (L 1 ) parallel to the longitudinal direction of the flat tube (1) and symmetrically with the axis (L 2 ) passing through the central portion of the flat tube (1) in the longitudinal direction. Heat exchanger.
ューブ（１）の長手方向に平行な中心軸（Ｌ1 ）とのな
す角度（θ）が、前記偏平チューブ（１）の長手方向の
中央部に向けて凸となるように前記突条（３）が形成さ
れていることを特徴とする請求項１に記載の熱交換器。2. The angle (θ) formed by the longitudinal direction of the ridge (3) and the central axis (L 1 ) parallel to the longitudinal direction of the flat tube (1) is the longitudinal direction of the flat tube (1). The heat exchanger according to claim 1, wherein the ridge (3) is formed so as to be convex toward a central portion in the direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33356095A JP3853863B2 (en) | 1995-12-21 | 1995-12-21 | Heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33356095A JP3853863B2 (en) | 1995-12-21 | 1995-12-21 | Heat exchanger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09178385A true JPH09178385A (en) | 1997-07-11 |
| JP3853863B2 JP3853863B2 (en) | 2006-12-06 |
Family
ID=18267416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP33356095A Expired - Lifetime JP3853863B2 (en) | 1995-12-21 | 1995-12-21 | Heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3853863B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1331462A3 (en) * | 2002-01-22 | 2007-01-17 | Calsonic Kansei UK Limited | Automotive heat exchanger |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101006597B1 (en) * | 2008-08-12 | 2011-01-07 | 주식회사 경동나비엔 | Heat exchanger |
-
1995
- 1995-12-21 JP JP33356095A patent/JP3853863B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1331462A3 (en) * | 2002-01-22 | 2007-01-17 | Calsonic Kansei UK Limited | Automotive heat exchanger |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3853863B2 (en) | 2006-12-06 |
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