JP2001050682A - Panel-type heat exchanger, and manufacture thereof - Google Patents
Panel-type heat exchanger, and manufacture thereofInfo
- Publication number
- JP2001050682A JP2001050682A JP11222759A JP22275999A JP2001050682A JP 2001050682 A JP2001050682 A JP 2001050682A JP 11222759 A JP11222759 A JP 11222759A JP 22275999 A JP22275999 A JP 22275999A JP 2001050682 A JP2001050682 A JP 2001050682A
- Authority
- JP
- Japan
- Prior art keywords
- heat exchanger
- panel
- metal plates
- type heat
- plate
- 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.)
- Pending
Links
Landscapes
- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】各種電子機器を冷却する熱交
換器、特にコンピュータのマイクロプロセッサユニット
（ＭＰＵ）等の小型発熱デバイスの放熱器として好適に
用いられるパネル型熱交換器およびその製造方法に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat exchanger for cooling various electronic devices, and more particularly to a panel-type heat exchanger suitably used as a radiator for a small heat-generating device such as a microprocessor unit (MPU) of a computer, and a method of manufacturing the same.
【０００２】[0002]
【従来の技術】パソコンには、ＣＰＵ、ＣＤ−ＲＯＭド
ライブ、ハードディスクドライブ等の数多くの発熱デバ
イスが組込まれており、長時間にわたって正常な動作を
維持するために、発生した熱を排出してこれらのデバイ
スを冷却する必要がある。そのため、各種放熱器が用い
られているが、特にノートブック型パソコンや携帯用パ
ソコンでは、小型ケースの中に前述の発熱デバイスを装
填し、かつキーボードも同じケース内に装填する必要
上、狭いスペースに多くの発熱デバイスが組み込まれる
こととなり、高い熱交換効率が求められる。2. Description of the Related Art Many heat-generating devices such as a CPU, a CD-ROM drive, and a hard disk drive are incorporated in a personal computer. Need to cool the device. For this reason, various types of radiators are used, but in notebook computers and portable computers in particular, the above-mentioned heat-generating device must be mounted in a small case, and the keyboard must be mounted in the same case. Many heat-generating devices are to be incorporated into the device, and high heat exchange efficiency is required.
【０００３】このようなパソコン用放熱器として、放熱
性が優れていることはもとより薄くてスペースをとらず
かつ軽量であることから、基板上に作動流体の流通回路
を設けたロールボンドヒートパイプパネルと呼ばれるパ
ネル型熱交換器が使用されることが多い。前記ロールボ
ンドヒートパイプパネルは、予めアルミニウム板の非圧
着部分に離型剤を塗布しておき、２枚のアルミニウム板
を張り合わせ状態に圧着するとともに、開口部から圧力
を加えて非圧着部分を上面側に膨出させてパネルのほぼ
全面にわたって通路を縦横に形成し、この通路内に作動
流体を充填した後、開口部を溶接して閉じたものであ
る。Such a heat radiator for a personal computer is not only excellent in heat radiation, but also thin, requires little space, and is lightweight. Therefore, a roll bond heat pipe panel provided with a working fluid circulation circuit on a substrate is used. Panel type heat exchangers are often used. The roll bond heat pipe panel is prepared by applying a release agent to a non-pressed portion of an aluminum plate in advance, pressing the two aluminum plates together in a bonded state, and applying pressure from the opening to the upper surface of the non-pressed portion. A passage is formed in the vertical and horizontal directions over substantially the entire surface of the panel by bulging to the side, and after filling the working fluid into the passage, the opening is welded and closed.
【０００４】[0004]
【発明が解決しようとする課題】しかし、従来のロール
ボンド式のパネル型熱交換器では、非圧着部分に塗布し
た離型剤が回路内部に封入されることとなり、熱交換効
率を低下させるという問題があった。また、材料となる
アルミニウム板は、圧着後に膨出させる必要上薄肉化に
限度があり、さらなる小型軽量化に十分応えることがで
きない。However, in the conventional roll bond type panel heat exchanger, the release agent applied to the non-compression-bonded portion is enclosed in the circuit, which lowers the heat exchange efficiency. There was a problem. In addition, the aluminum plate as a material needs to be swelled after pressure bonding, and there is a limit to thinning, and it is not possible to sufficiently cope with further reduction in size and weight.
【０００５】この発明は、このような技術背景に鑑み、
薄型軽量で熱交換効率の優れたパネル型熱交換器および
その製造方法の提供を目的とする。The present invention has been made in view of such technical background,
It is an object of the present invention to provide a thin and light panel heat exchanger having excellent heat exchange efficiency and a method for manufacturing the same.
【０００６】[0006]
【課題を解決するための手段】前記目的を達成するため
に、この発明のパネル型熱交換器は、外側に張り出す凸
状通路（12）が形成された金属製成形板（11）を含む２
枚の金属板（11）（13）が加熱および加圧により接合さ
れて、作動流体を流通させる回路（14）が形成されてい
ることを基本要旨とする。In order to achieve the above object, a panel heat exchanger according to the present invention includes a metal forming plate (11) having a convex passage (12) projecting outward. 2
The basic gist is that the metal plates (11) and (13) are joined by heating and pressing to form a circuit (14) for flowing a working fluid.
【０００７】また、前記パネル型熱交換器において、前
記金属板（11）（13）が、銅または銅合金により形成さ
れていること、あるいはアルミニウム時効合金で形成さ
れていることが好ましい。アルミニウム時効合金で形成
されている場合は、少なくとも回路（14）形成部分の内
面が銅または銅合金により形成されていることが好まし
い。また、前記金属板（11）（13）は、肉厚（ｔ）が
０．１〜０．８mmであることが好ましく、前記回路（1
4）の断面形状は、半円形、円形、楕円形、半月形、多
角形、台形のうちのいずれかが好ましい。In the panel type heat exchanger, it is preferable that the metal plates (11) and (13) are formed of copper or a copper alloy, or are formed of an aluminum aging alloy. When it is formed of an aluminum aging alloy, it is preferable that at least the inner surface of the circuit (14) forming portion is formed of copper or a copper alloy. Further, the metal plates (11) and (13) preferably have a thickness (t) of 0.1 to 0.8 mm, and
The cross-sectional shape of 4) is preferably any one of a semicircle, a circle, an ellipse, a half moon, a polygon, and a trapezoid.
【０００８】また、この発明のパネル型熱交換器の製造
方法は、材料金属板（30）の所要部分に凸状通路（12）
を成形して成形板（11）を製作し、この成形板（11）を
含む２枚の金属板（11）（13）を前記凸状通路（12）が
外側に張り出すように重ね合わせ、２枚の金属板（11）
（13）の接触部分を金型（41）（42）で挟み付けて加熱
するとともに加圧してこれらの金属板（11）（13）を接
合し、作動流体を流通させる回路（14）を形成すること
を基本要旨とする。Further, according to the method of manufacturing a panel type heat exchanger of the present invention, a convex passage (12) is formed in a required portion of a material metal plate (30).
To form a molded plate (11), and superimpose two metal plates (11) and (13) including the molded plate (11) such that the convex passage (12) projects outward. Two metal plates (11)
The contact portion of (13) is sandwiched between molds (41) and (42), heated and pressed to join these metal plates (11) and (13) to form a circuit (14) that allows the working fluid to flow. The basic point is to do.
【０００９】また、前記パネル型熱交換器の製造方法に
おいて、前記接合は、非酸化雰囲気中で、加熱温度：３
００〜８５０℃、加圧力：１．５ｋｇｆ／mm2 以上、加
熱加圧保持時間：１０分以上の条件で行うことが好まし
い。また、前記２枚の金属板（11）（13）をインサート
材（15）を介在させて重ね合わせることが好ましい。ま
た、前記２枚の金属板（11）（13）を一組とし、各組の
間に接合部を押圧する中子（45）を介在させて複数組の
金属板（11）（13）を重ね合わせ、重ね合わせた両端を
金型（41）（42）で挟み付けて複数組の接合を同時に行
うことが好ましい。また、前記金型（41）（42）および
中子（45）は鋼材またはカーボンからなることが好まし
い。In the method for manufacturing a panel-type heat exchanger, the bonding may be performed in a non-oxidizing atmosphere at a heating temperature of 3 ° C.
It is preferable to carry out the process under the conditions of 00 to 850 ° C., a pressure of 1.5 kgf / mm 2 or more, and a heating and holding time of 10 minutes or more. It is preferable that the two metal plates (11) and (13) are overlapped with an insert material (15) interposed therebetween. Further, the two metal plates (11) and (13) are made into one set, and a plurality of sets of metal plates (11) and (13) are formed by interposing a core (45) for pressing a joint between the sets. It is preferable to simultaneously join a plurality of sets by sandwiching the overlapped ends with the molds (41) and (42). Preferably, the molds (41) and (42) and the core (45) are made of steel or carbon.
【００１０】[0010]
【発明の実施の形態】図１および図２に、この発明のパ
ネル型熱交換器（１）の一例を示す。1 and 2 show an example of a panel type heat exchanger (1) of the present invention.
【００１１】前記パネル型熱交換器（１）は、外側に張
り出す蛇行状の凸状通路（12）が形成された金属製の成
形板（11）と平板（13）とを張り合わせて、凸状通路
（12）と平板（13）とで形成される空間を作動流体の回
路（14）としたものである。The panel type heat exchanger (1) is formed by laminating a metal forming plate (11) having a meandering convex passage (12) projecting outward and a flat plate (13). A space formed by the passage (12) and the flat plate (13) is used as a working fluid circuit (14).
【００１２】前記金属板（11）（13）の材質は、熱伝導
性に優れている点でアルミニウムまたは銅あるいはこれ
らの合金を推奨できる。特に、作動流体として水を使用
する場合、水との反応性が低くた銅またはその合金が好
ましい。銅またはその合金を用いることにより、耐食性
に優れ、また反応生成物による熱交換効率の低下もな
い。ただし、作動流体が触れるのは回路を形成する成形
板（11）の凸状通路（12）および平板（13）の前記凸状
通路（12）対向部分であるから、これら金属板（11）
（13）の基材にアルミニウムを用いて内面側の全面また
は必要部分のみを銅材料で被覆することによっても対処
することができる。被覆の方法は、メッキ、電着、蒸
着、クラッド等を例示できる。好適な銅材料として特に
水との反応性が低いＯＦＨＣ（無酸素高伝導銅）やＣｕ
−Ｚｒ系化合物を推奨できる。また、アルミニウムを用
いる場合は、時効合金で形成することが好ましく、接合
時の加熱により強度を向上させることができ、薄肉板で
も強度を確保することができる。具体的なアルミニウム
時効合金として、６０６３、ＳＴ６０などの６０００系
合金を推奨できる。As the material of the metal plates (11) and (13), aluminum, copper, or an alloy thereof can be recommended because of its excellent thermal conductivity. In particular, when water is used as the working fluid, copper or an alloy thereof having low reactivity with water is preferable. By using copper or its alloy, it is excellent in corrosion resistance and there is no decrease in heat exchange efficiency due to reaction products. However, since the working fluid touches the convex passage (12) of the forming plate (11) and the portion of the flat plate (13) opposed to the convex passage (12), the metal plate (11)
(13) It can also be dealt with by covering the entire inner surface or only the necessary portion with a copper material using aluminum as the base material. Examples of the coating method include plating, electrodeposition, vapor deposition, cladding, and the like. OFHC (oxygen-free high-conductivity copper) or Cu, which has particularly low reactivity with water, as a suitable copper material
A -Zr-based compound can be recommended. When aluminum is used, it is preferably formed of an aging alloy, and the strength can be improved by heating at the time of joining, and the strength can be ensured even with a thin plate. As a specific aluminum aging alloy, a 6000 series alloy such as 6063 and ST60 can be recommended.
【００１３】また、前記金属板（11）（13）の肉厚
（ｔ）は、パネルとしての剛性と強度を確保しつつ軽量
化を図るために０．１〜０．８mmが好ましい。肉厚
（ｔ）の好ましい下限値は０．２mmであり、好ましい上
限値は０．５mmである。因みに、従来のロールボンドヒ
ートパイプパネルは、肉厚１mm程度の材料板を使用する
のが一般的であり、これに比べると薄肉軽量化を実現で
きる。The thickness (t) of the metal plates (11) and (13) is preferably 0.1 to 0.8 mm in order to secure the rigidity and strength of the panel and reduce the weight. A preferred lower limit of the thickness (t) is 0.2 mm, and a preferred upper limit is 0.5 mm. Incidentally, a conventional roll-bonded heat pipe panel generally uses a material plate having a thickness of about 1 mm, and can realize a thinner and lighter weight than this.
【００１４】また、前記回路（14）の断面形状は、優れ
た熱交換効率を発現させる上で、図２に示す半円形の
他、円形（図３（Ａ））、楕円形、半月形（図３
（Ｂ））、多角形、台形（図３（Ｃ））うちのいずれか
が好ましい。回路（14）は図２等のように片面のみに張
り出して形成されても、また図３（Ａ）のように両面に
張り出して形成されていても良い。換言すれば、２枚の
金属板（11）（13）のうちの少なくとも１枚に凸状通路
（12）が形成された成形板であれば良い。The cross section of the circuit (14) has a semicircular shape as shown in FIG. 2 as well as a circular shape (FIG. 3 (A)), an elliptical shape, and a semilunar shape (for achieving excellent heat exchange efficiency). FIG.
(B)), a polygon, or a trapezoid (FIG. 3 (C)). The circuit (14) may be formed so as to protrude on only one side as shown in FIG. 2 or the like, or may be formed so as to protrude on both sides as shown in FIG. In other words, a formed plate having at least one of the two metal plates (11) and (13) formed with the convex passage (12) may be used.
【００１５】また、一方の金属板として平板（13）を使
用する場合、他方の成形板は平板（13）と同一輪郭に形
成する必要はなく、図４に示すように凸状通路（12）お
よびその縁部のみからなる成形板（11’）を使用するこ
ともできる。このような形態を採用することにより、さ
らに軽量化を図ることができる。When a flat plate (13) is used as one of the metal plates, the other formed plate does not need to be formed to have the same contour as the flat plate (13), and as shown in FIG. And a formed plate (11 ') consisting only of the edge thereof. By adopting such a form, it is possible to further reduce the weight.
【００１６】前記パネル型熱交換器（１）は、この発明
の方法により製造される。The panel type heat exchanger (1) is manufactured by the method of the present invention.
【００１７】まず、材料金属板に作動流体の回路となる
凸状通路（12）を膨出させる成形を行って成形板（11）
を製作する。成形方法は、例えば図５に示すように材料
金属板（30）を上下の金型（31）（32）に挟んでプレス
加工する等の周知の方法による。また、金属板（11）
（13）の全面あるいは一部を銅材料で被覆する場合は、
成形前に被覆処理しておくことが好ましい。First, a metal plate is formed by bulging a convex passage (12) serving as a working fluid circuit to form a formed plate (11).
To produce As a forming method, for example, as shown in FIG. 5, a known method such as pressing a material metal plate (30) between upper and lower molds (31) and (32) is used. In addition, metal plate (11)
When covering all or part of (13) with copper material,
It is preferable to perform a coating treatment before molding.
【００１８】次に、成形した２枚の金属板、あるいは成
形した金属板と平板状の金属板とを重ね合わせて回路を
除く金属板の接触部分を接合する。接合は、図６に示す
ように重ね合わせた金属板（11）（13）を金型（41）
（42）で挟み付け、加熱しながら加圧することにより行
う。なお、図６においては、断面半円形の凸状通路（1
2）が形成された成形板（11）と平板（13）とを重ね合
わせ、上下一対の金型（41）（42）で挟み付ける接合例
を示している。このように加熱と加圧を同時に行うこと
により、接合は拡散接合または圧縮接合により行われる
こととなる。また、接合は金属板（11）（13）の表面酸
化を抑制して強い接合力を発現させるために、真空また
はＡｒ、Ｎ2 等の不活性ガス中の非酸化雰囲気で行うこ
とが好ましい。真空の場合は１０-2Torr以下が好まし
い。また加熱温度：３００〜８５０℃、加圧力は１．５
ｋｇｆ／mm2 以上、加熱加圧保持時間：１０分以上が好
ましい。それぞれ下限値未満では拡散が不十分で強い接
合力が得られない。一方、８５０℃を超えると金属板が
軟化溶融する。加熱温度の好ましい下限値は３５０℃、
好ましい上限は８００℃である。また、加圧保持時間の
好ましい下限値は、２０分、好ましい上限値は１０時間
である。また、加熱は、加熱室内での雰囲気加熱でも、
接合部にヒーター等の加熱装置を配置する部分加熱の何
れでも良い。Next, the two formed metal plates, or the formed metal plate and the flat metal plate are overlapped, and the contact portions of the metal plates except for the circuit are joined. As shown in FIG. 6, the metal plates (11) and (13) overlapped with each other are joined by a mold (41).
This is performed by sandwiching in (42) and applying pressure while heating. In FIG. 6, a convex passage (1
An example is shown in which a molded plate (11) on which 2) is formed and a flat plate (13) are overlapped and sandwiched between a pair of upper and lower molds (41) and (42). By simultaneously performing the heating and the pressurization, the bonding is performed by the diffusion bonding or the compression bonding. In addition, the bonding is preferably performed in a non-oxidizing atmosphere in a vacuum or in an inert gas such as Ar or N 2 in order to suppress the surface oxidation of the metal plates (11) and (13) and express a strong bonding force. In the case of a vacuum, the pressure is preferably 10 -2 Torr or less. Heating temperature: 300-850 ° C, pressure 1.5
kgf / mm 2 or more, and heating and pressure holding time: preferably 10 minutes or more. If each is less than the lower limit, diffusion is insufficient and a strong bonding force cannot be obtained. On the other hand, when the temperature exceeds 850 ° C., the metal plate softens and melts. A preferred lower limit of the heating temperature is 350 ° C.
A preferred upper limit is 800 ° C. The preferred lower limit of the pressure holding time is 20 minutes, and the preferred upper limit is 10 hours. In addition, heating, even in the atmosphere heating in the heating chamber,
Any of partial heating in which a heating device such as a heater is arranged at the joint may be used.
【００１９】また、図６に示すように、金属板（11）
（13）の接合界面にインサート材（15）を介在させるこ
とが好ましく、インサート材（15）の構成原子が金属板
（11）（13）に拡散することにより強力な接合を達成で
きる。また、金属板（11）（13）の表面平坦度にばらつ
きがある場合でもインサート材（15）の介在によりばら
つきを吸収して強力な接合力が得られる。インサート材
（15）の材質は、金属板（11）（13）がアルミニウムま
たはその合金の場合は、Ａｌ−Ｓｉ系ろう材が好まし
く、銅またはその合金の場合は銀ろうが好ましい。As shown in FIG. 6, a metal plate (11)
It is preferable to interpose the insert material (15) at the bonding interface of (13), and strong bonding can be achieved by diffusing the constituent atoms of the insert material (15) into the metal plates (11) and (13). Further, even if the surface flatness of the metal plates (11) and (13) varies, the interposition of the insert material (15) absorbs the variations and provides a strong joining force. The material of the insert material (15) is preferably an Al-Si brazing material when the metal plates (11) and (13) are aluminum or an alloy thereof, and is preferably a silver brazing material when the metal plates (11) and (13) are copper or an alloy thereof.
【００２０】また、金属板の表面をＲａ０．１μｍ以下
に鏡面化することも好ましく、拡散性が増してより強力
な接合を達成できる。It is also preferred that the surface of the metal plate is mirror-finished to a Ra of 0.1 μm or less, so that the diffusivity is increased and stronger bonding can be achieved.
【００２１】また、接合用金型（41）（42）は、耐熱性
および耐圧性が優れている点で、ＳＵＳ３１６等の鋼材
製またはカーボン製を推奨できる。The joining molds (41) and (42) can be made of steel such as SUS316 or carbon because of their excellent heat resistance and pressure resistance.
【００２２】また、図５に示すように一対の金型（41）
（42）で重ね合わせた１組の金属板（11）（13）を挟み
付けて接合するほか、中子を用いることにより複数組の
金属板を同時に接合することができる。図８に示す接合
例においては、上下の押圧面がそれぞれ１組２枚の金属
板（11）（13）の凹凸形状に倣って形成された中子（4
5）を使用し、組み付けた金属板（11）（13）と前記中
子（45）とを交互に重ね合わせ、さらにその両端を金型
（41）（42）で挟み付けて接合部を加圧している。As shown in FIG. 5, a pair of molds (41)
In addition to sandwiching and joining a set of metal plates (11) and (13) superimposed in (42), a plurality of sets of metal plates can be joined simultaneously by using a core. In the bonding example shown in FIG. 8, the upper and lower pressing surfaces are each formed of a core (4) formed according to the concave and convex shapes of a pair of two metal plates (11) and (13).
Using 5), the assembled metal plates (11) and (13) and the core (45) are alternately overlapped, and both ends thereof are sandwiched between dies (41) and (42) to add a joint. I'm pressing.
【００２３】また、図６、７、８に例示した金型（41）
（42）および中子（45）は、断面が概略長方形で加圧方
向の全面で押圧するようになされているが、図９に示す
中子（46）のように、加圧方向の両面に凹部（47）と凸
部（48）とを設けて凹部（47）内に凸部（48）を嵌合さ
せて押圧する構造にしても良い。図９に例示する中子
（46）は、加圧方向の両面にそれぞれ凹部（47）および
凸部（48）を形成し、さらに凹部（47）の底面および凸
部（48）の頂面を金属板（11）（13）に倣って形成した
ものであって、凸部（48）を他の中子（46’）の凹部
（47）に嵌合させて１組の金属板（11）（13）を押圧す
る。このような嵌合状態においては、挟んだ金属板（1
1）（13）がずれにくく良好な接合を達成できる。な
お、前記凹部（47）と凸（48）部との間には、若干の隙
間（Ｄ）を設けることが好ましい。この隙間（Ｄ）がな
いと凹部（47）と凸（48）部とがかみ合いにくいし押圧
面間の脱気ができない。一方、隙間（Ｄ）が大き過ぎる
と、金属板（11）（13）がずれやすくなる。また、多数
組の同時接合を行う場合、プレス軸がずれやすくなる
が、金属板、金型および中子の共通位置にそれぞれ１つ
または複数の貫通穴を設け、これらを重ねてから穴に棒
を通すことによりずれを防ぐことができる。The mold (41) illustrated in FIGS.
The core (42) and the core (45) have a substantially rectangular cross section and are pressed on the entire surface in the pressing direction. However, like the core (46) shown in FIG. A structure in which the concave portion (47) and the convex portion (48) are provided, and the convex portion (48) is fitted into the concave portion (47) and pressed may be adopted. The core (46) illustrated in FIG. 9 has a concave portion (47) and a convex portion (48) formed on both sides in the pressing direction, and further has a bottom surface of the concave portion (47) and a top surface of the convex portion (48). It is formed following the metal plates (11) and (13), and the convex portion (48) is fitted into the concave portion (47) of another core (46 ') to form a set of metal plates (11). Press (13). In such a fitted state, the sandwiched metal plate (1
1) (13) is not easily displaced and good bonding can be achieved. Preferably, a slight gap (D) is provided between the concave portion (47) and the convex portion (48). If there is no gap (D), it is difficult for the concave portion (47) and the convex portion (48) to engage with each other, and deaeration between the pressing surfaces cannot be performed. On the other hand, if the gap (D) is too large, the metal plates (11) and (13) are likely to shift. When a large number of sets are joined at the same time, the press axis is likely to be displaced. However, one or more through holes are provided at common positions of the metal plate, the mold, and the core. Can prevent slippage.
【００２４】[0024]
【実施例】図１に示すパネル型熱交換器（１）を製作し
た。前記パネル型熱交換器（１）は、片面に回路（14）
が張り出したものであり、成形板と平板をとを張り合わ
せて接合したものである。EXAMPLE A panel type heat exchanger (1) shown in FIG. 1 was manufactured. The panel type heat exchanger (1) has a circuit (14) on one side.
Are formed, and a molded plate and a flat plate are bonded to each other.
【００２５】材料金属板として、板厚０．２mmのＯＦＨ
Ｃ（無酸素高伝導銅）Ｈ１／２条を用いた。また、接合
用金型（41）（42）として、ＳＵＳ３１６からなり２０
０mm×３００mm×厚さ２０mmのものを使用し、接合用中
子（45）として、ＳＵＳ３１６からなり２００mm×３０
０mm×厚さ９mmのものを使用した。Materials OFH having a thickness of 0.2 mm is used as a metal plate.
C (oxygen-free high-conductivity copper) H1 / 2 strip was used. The joining molds (41) and (42) are made of SUS316.
Use a thing of 0 mm x 300 mm x thickness of 20 mm and use SUS316 as a joining core (45), 200 mm x 30 mm
One having a thickness of 0 mm and a thickness of 9 mm was used.
【００２６】まず、図５に示すプレス加工により、材料
金属板（30）に高さ１．０mm×幅６．０mmの蛇行状の凸
状通路（12）部を成形して１０枚の成形板（11）を作製
した。一方、材料金属板（30）を前記成形板（11）と同
じ輪郭寸法に切断し、１０枚の平板（13）を作製した。
前記成形板（11）および平板（13）は表面洗浄を行って
清浄にした。First, a meandering convex passage (12) having a height of 1.0 mm and a width of 6.0 mm was formed on a metal plate (30) by pressing as shown in FIG. (11) was produced. On the other hand, the material metal plate (30) was cut into the same contour dimensions as the formed plate (11) to produce ten flat plates (13).
The molded plate (11) and the flat plate (13) were cleaned by performing surface cleaning.
【００２７】次に、成形板（11）の凸状通路（12）が外
側に張り出すように成形板（11）と平板（13）とを重ね
合わせたものを１０組用意した。そして、図８に示すよ
うに加熱室（50）内において、１０組の金属板（11）
（13）を中子（45）介在させて重ね合わせ、さらに上下
を一対の金型（41）（42）で挟んだ。このとき、金属板
（11）（13）とこれらとの圧着を防止するために、金型
（41）（42）および中子（45）の表面に離型剤（ＢＮ）
を塗布した。そして、前記加熱室（50）内を１０-4Torr
の真空にし、室温から７５０℃まで３００℃／時間で昇
温して７５０℃で９０分間保持し、さらに２００℃／時
間で８００℃に昇温して８００℃で４５トン（面圧３．
５１ｋｇｆ／mm2 ）の加圧力を付与した状態で３０分保
持し、これら（11）（13）を接合した。Next, ten sets of laminated plates (11) and flat plates (13) were prepared so that the convex passages (12) of the formed plate (11) project outward. Then, as shown in FIG. 8, ten sets of metal plates (11) are set in the heating chamber (50).
(13) was overlapped with a core (45) interposed, and the upper and lower sides were sandwiched between a pair of molds (41) and (42). At this time, in order to prevent the metal plates (11) and (13) from being pressed against these, the surfaces of the molds (41) and (42) and the core (45) are coated with a release agent (BN).
Was applied. Then, the inside of the heating chamber (50) is set to 10 -4 Torr.
The temperature is raised from room temperature to 750 ° C. at a rate of 300 ° C./hour, maintained at 750 ° C. for 90 minutes, and further raised to 800 ° C. at a rate of 200 ° C./hour and 45 tons at 800 ° C. (surface pressure 3.
These were held for 30 minutes while applying a pressing force of 51 kgf / mm 2 ), and these (11) and (13) were joined.
【００２８】冷却後、接合品を取り出して観察したとこ
ろ、１０組のパネル型熱交換器（１）は全て良好に接合
されていた。After cooling, the joined articles were taken out and observed. As a result, all of the ten panel-type heat exchangers (1) were joined well.
【００２９】[0029]
【発明の効果】以上説明したように、この発明のパネル
型熱交換器は、作動流体の流通回路となる凸状通路が形
成された成形板を含む２枚の金属板を加熱および加圧に
より張り合わせて接合したものであるから、その製造工
程において従来のロールボンド式のパネル型熱交換器の
ように離型剤を使用しない。そのため、回路内に残留し
た離型剤による熱交換効率の低下はなく、優れた熱交換
性能が得られる。また、凸状通路は接合前に形成するか
ら、圧着後に膨出成形するよりも薄肉板を使用でき、熱
交換器の薄型軽量化を図ることができる。また、接合前
の成形では回路の経路や断面形状に成形上の制約もな
い。As described above, the panel-type heat exchanger of the present invention heats and presses two metal plates including a formed plate having a convex passage formed as a working fluid circulation circuit. Since they are bonded together, no release agent is used in the manufacturing process as in a conventional roll-bond type panel heat exchanger. Therefore, there is no decrease in heat exchange efficiency due to the mold release agent remaining in the circuit, and excellent heat exchange performance can be obtained. Further, since the convex passage is formed before joining, a thinner plate can be used than in the case where the convex passage is formed after press bonding, and the thickness and weight of the heat exchanger can be reduced. Further, in the molding before joining, there is no restriction on the molding in the path and the cross-sectional shape of the circuit.
【００３０】また、前記パネル型熱交換器において、前
記金属板が銅または銅合金で形成されているこ場合は、
作動流体である水との反応性が低く耐食性に優れ、反応
生成物による熱交換効率の低下もない。また、アルミニ
ウム時効合金で形成されている場合は、優れた強度が得
られ、強度保持に必要な金属板の肉厚が薄くて済み、熱
交換器のさらなる薄肉軽量化を実現できる。このとき、
少なくとも回路形成部分の内面を銅または銅合金により
形成すれば、作動流体との反応も防止できる。また、前
記金属板は、肉厚（ｔ）が０．１〜０．８mmであること
が好ましく、パネル型熱交換器としての強度と薄肉軽量
化との両者を具備するものとなる。また、前記回路の断
面形状は、半円形、円形、楕円形、半月形、多角形、台
形のうちのいずれかが好ましく、優れた熱交換効率を発
現させることができる。In the panel type heat exchanger, when the metal plate is formed of copper or a copper alloy,
It has low reactivity with water as a working fluid and excellent corrosion resistance, and there is no reduction in heat exchange efficiency due to reaction products. Further, when the heat exchanger is formed of an aluminum aging alloy, excellent strength is obtained, the thickness of the metal plate required for maintaining the strength can be reduced, and the heat exchanger can be further reduced in thickness and weight. At this time,
If at least the inner surface of the circuit forming portion is formed of copper or a copper alloy, reaction with the working fluid can be prevented. The metal plate preferably has a thickness (t) of 0.1 to 0.8 mm, and has both strength as a panel-type heat exchanger and thin and light weight. The cross-sectional shape of the circuit is preferably any one of a semicircle, a circle, an ellipse, a half-moon, a polygon, and a trapezoid, so that excellent heat exchange efficiency can be exhibited.
【００３１】また、この発明のパネル型熱交換器の製造
方法は、材料金属板の所要部分に凸状通路を成形して成
形板を製作し、この成形板を含む２枚の金属板を前記凸
状通路が外側に張り出すように重ね合わせ、２枚の金属
板の接触部分を金型で挟み付けて加熱するとともに加圧
してこれらの金属板を接合し、作動流体を流通させる回
路を形成するものであるから、上述の効果を有するパネ
ル型熱交換器を容易に製造できる。Further, in the method of manufacturing a panel-type heat exchanger according to the present invention, a formed plate is manufactured by forming a convex passage in a required portion of a material metal plate, and the two metal plates including the formed plate are formed as described above. The convex passage is overlapped so as to protrude outward, and the contact portion of the two metal plates is sandwiched by a mold, heated and pressed to join these metal plates to form a circuit for flowing the working fluid. Therefore, a panel heat exchanger having the above-described effects can be easily manufactured.
【００３２】また、前記パネル型熱交換器の製造方法に
おいて、前記接合を、非酸化雰囲気中で、加熱温度：３
００〜８５０℃、加圧力：１．５ｋｇｆ／mm2 以上、加
熱加圧保持時間：１０分以上の条件で行うことにより、
接合面近傍の元素の拡散を活発にして優れた接合強度を
達成できる。また、前記２枚の金属板をインサート材を
介在させて重ね合わせることにより、接合面の平坦度の
ばらつきを吸収して優れた接合強度を達成できる。ま
た、前記２枚の金属板を一組とし、各組の間に接合部を
押圧する中子を介在させて複数組の金属板を重ね合わ
せ、重ね合わせた両端を金型で挟み付けて複数組の接合
を同時に行うことにより、１回の加熱および加圧で複数
のパネル型熱交換器を製造でき、生産性を向上させるこ
とができる。また、前記金型および中子を、耐熱性およ
び耐圧性が優れた鋼材またはカーボンで形成することに
より、加熱加圧下における接合を円滑に行うことができ
る。In the method of manufacturing a panel-type heat exchanger, the bonding may be performed in a non-oxidizing atmosphere at a heating temperature of 3 ° C.
By performing under the conditions of 00 to 850 ° C., pressure: 1.5 kgf / mm 2 or more, and heating / pressing holding time: 10 minutes or more,
The diffusion of elements in the vicinity of the bonding surface is activated to achieve excellent bonding strength. Further, by superimposing the two metal plates with an insert material interposed therebetween, it is possible to absorb variations in flatness of the joint surface and achieve excellent joint strength. Further, the two metal plates are formed into one set, and a plurality of sets of metal plates are overlapped with a core pressing the joint portion between each set, and the overlapped two ends are sandwiched by a mold. By simultaneously joining the sets, a plurality of panel-type heat exchangers can be manufactured by one heating and pressurization, and the productivity can be improved. Further, by forming the mold and the core from a steel material or carbon having excellent heat resistance and pressure resistance, bonding under heating and pressing can be performed smoothly.
【図１】この発明のパネル型熱交換器の一例を示す斜視
図である。FIG. 1 is a perspective view showing an example of a panel type heat exchanger of the present invention.
【図２】図１のII-II線要部断面図である。FIG. 2 is a sectional view of a main part taken along line II-II of FIG.
【図３】この発明のパネル型熱交換器の回路の断面形状
を示す断面図であり、（Ａ）は円形、（Ｂ）は半月形、
（Ｃ）は台形である。3A and 3B are cross-sectional views showing a cross-sectional shape of a circuit of the panel heat exchanger of the present invention, wherein FIG. 3A is a circle, FIG.
(C) is a trapezoid.
【図４】この発明のパネル型熱交換器において、回路の
他の例を示す断面図である。FIG. 4 is a cross-sectional view showing another example of a circuit in the panel heat exchanger of the present invention.
【図５】成形板の製造工程を示す断面図である。FIG. 5 is a cross-sectional view illustrating a manufacturing process of a molded plate.
【図６】この発明のパネル型熱交換器の製造方法の一例
を示す断面図である。FIG. 6 is a cross-sectional view showing one example of a method for manufacturing a panel heat exchanger of the present invention.
【図７】この発明のパネル型熱交換器の製造方法の他の
例を示す断面図である。FIG. 7 is a cross-sectional view showing another example of the method of manufacturing the panel heat exchanger of the present invention.
【図８】この発明のパネル型熱交換器の製造方法におい
て、中子を用いる方法を示す断面図である。FIG. 8 is a cross-sectional view showing a method of using a core in the method of manufacturing a panel heat exchanger of the present invention.
【図９】他の中子を示す断面図である。FIG. 9 is a sectional view showing another core.
１…パネル型熱交換器 11…金属板（成形板） 12…凸状通路 13…金属板（平板） 14…回路 15…インサート材 31、32、41、42…金型 45、46、46’…中子 DESCRIPTION OF SYMBOLS 1 ... Panel-type heat exchanger 11 ... Metal plate (formed plate) 12 ... Convex passage 13 ... Metal plate (flat plate) 14 ... Circuit 15 ... Insert material 31, 32, 41, 42 ... Die 45, 46, 46 ' … Koko
Claims (11)
れた金属製成形板（11）を含む２枚の金属板（11）（1
3）が加熱および加圧により接合されて、作動流体を流
通させる回路（14）が形成されていることを特徴とする
パネル型熱交換器。1. Two metal plates (11) (1) including a metal forming plate (11) formed with a convex passage (12) projecting outward.
3. A panel type heat exchanger, wherein 3) is joined by heating and pressurizing to form a circuit (14) for flowing a working fluid.
合金により形成されている請求項１に記載のパネル型熱
交換器。2. The panel-type heat exchanger according to claim 1, wherein said metal plates (11) and (13) are formed of copper or a copper alloy.
ム時効合金で形成されていることを特徴とする請求項１
に記載のパネル型熱交換器。3. The metal plate (11) (13) is formed of an aluminum aging alloy.
The panel-type heat exchanger according to 1.
回路（14）形成部分の内面が銅または銅合金により形成
されている請求項３に記載のパネル型熱交換器。4. The panel-type heat exchanger according to claim 3, wherein the metal plates (11) and (13) have at least an inner surface of a portion where a circuit (14) is formed made of copper or a copper alloy.
が０．１〜０．８mmである請求項１〜４のいずれかに記
載のパネル型熱交換器。5. The metal plates (11) and (13) have a thickness (t).
The panel type heat exchanger according to any one of claims 1 to 4, wherein a is 0.1 to 0.8 mm.
円形、楕円形、半月形、多角形、台形のうちのいずれか
である請求項１〜５のいずれかに記載のパネル型熱交換
器。6. The circuit (14) has a semi-circular cross section.
The panel heat exchanger according to any one of claims 1 to 5, wherein the heat exchanger is any one of a circle, an ellipse, a half moon, a polygon, and a trapezoid.
（12）を成形して成形板（11）を製作し、この成形板
（11）を含む２枚の金属板（11）（13）を前記凸状通路
（12）が外側に張り出すように重ね合わせ、２枚の金属
板（11）（13）の接触部分を金型（41）（42）で挟み付
けて加熱するとともに加圧してこれらの金属板（11）
（13）を接合し、作動流体を流通させる回路（14）を形
成することを特徴とするパネル型熱交換器の製造方法。7. A shaped plate (11) is manufactured by forming a convex passage (12) in a required portion of a material metal plate (30), and two metal plates (11) including the formed plate (11). (13) is overlapped so that the convex passage (12) projects outward, and the contact portions of the two metal plates (11) and (13) are sandwiched between the molds (41) and (42) and heated. Press together with these metal plates (11)
A method for manufacturing a panel-type heat exchanger, comprising: forming a circuit (14) that joins (13) and circulates a working fluid.
度：３００〜８５０℃、加圧力：１．５ｋｇｆ／mm2 以
上、加熱加圧保持時間：１０分以上の条件で行う請求項
７に記載のパネル型熱交換器の製造方法。8. The bonding is performed in a non-oxidizing atmosphere under the conditions of a heating temperature: 300 to 850 ° C., a pressing force: 1.5 kgf / mm 2 or more, and a heating / pressing holding time: 10 minutes or more. 3. The method for producing a panel heat exchanger according to item 1.
ート v材（15）を介在させて重ね合わせる請求項７また
は８に記載のパネル型熱交換器の製造方法。9. The method for manufacturing a panel-type heat exchanger according to claim 7, wherein the two metal plates (11) and (13) are overlapped with an insert v material (15) interposed therebetween.
とし、各組の間に接合部を押圧する中子（45）を介在さ
せて複数組の金属板（11）（13）を重ね合わせ、重ね合
わせた両端を金型（41）（42）で挟み付けて複数組の接
合を同時に行う請求項７〜９のいずれかに記載のパネル
型熱交換器の製造方法。10. A plurality of sets of metal plates (11) (11) (13) are formed as one set, and a core (45) for pressing a joint portion is interposed between each set. The method for manufacturing a panel-type heat exchanger according to any one of claims 7 to 9, wherein 13) are overlapped, and the overlapped ends are sandwiched by dies (41) and (42) to simultaneously join a plurality of sets.
5）は鋼材またはカーボンからなる請求項７〜１０のい
ずれかに記載のパネル型熱交換器の製造方法。11. The mold (41) (42) and the core (4)
The method for manufacturing a panel-type heat exchanger according to any one of claims 7 to 10, wherein 5) is made of steel or carbon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11222759A JP2001050682A (en) | 1999-08-05 | 1999-08-05 | Panel-type heat exchanger, and manufacture thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11222759A JP2001050682A (en) | 1999-08-05 | 1999-08-05 | Panel-type heat exchanger, and manufacture thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001050682A true JP2001050682A (en) | 2001-02-23 |
Family
ID=16787469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11222759A Pending JP2001050682A (en) | 1999-08-05 | 1999-08-05 | Panel-type heat exchanger, and manufacture thereof |
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| Country | Link |
|---|---|
| JP (1) | JP2001050682A (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004287413A (en) * | 2003-03-03 | 2004-10-14 | Showa Denko Kk | Heat radiator for two-dimensional display device and two-dimensional display device using same |
| WO2010053764A2 (en) * | 2008-11-07 | 2010-05-14 | Applied Materials, Inc. | Hydroformed fluid channels |
| JP2017119909A (en) * | 2015-12-25 | 2017-07-06 | 株式会社神戸製鋼所 | Copper alloy plate for heat-dissipation component |
| JP2018059132A (en) * | 2016-10-03 | 2018-04-12 | 株式会社神戸製鋼所 | Copper alloy sheet for heat radiation component and heat radiation component |
| JP2020531777A (en) * | 2017-08-22 | 2020-11-05 | イノヒート スウェーデン アべ | Heat transfer plate and heat exchanger |
| JPWO2020129863A1 (en) * | 2018-12-21 | 2021-11-25 | 日本発條株式会社 | Joining method and joining body |
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| JP2004287413A (en) * | 2003-03-03 | 2004-10-14 | Showa Denko Kk | Heat radiator for two-dimensional display device and two-dimensional display device using same |
| JP4547168B2 (en) * | 2003-03-03 | 2010-09-22 | 昭和電工株式会社 | Manufacturing method of radiator for two-dimensional display device |
| WO2010053764A2 (en) * | 2008-11-07 | 2010-05-14 | Applied Materials, Inc. | Hydroformed fluid channels |
| WO2010053764A3 (en) * | 2008-11-07 | 2010-07-08 | Applied Materials, Inc. | Hydroformed fluid channels |
| JP2017119909A (en) * | 2015-12-25 | 2017-07-06 | 株式会社神戸製鋼所 | Copper alloy plate for heat-dissipation component |
| JP2018059132A (en) * | 2016-10-03 | 2018-04-12 | 株式会社神戸製鋼所 | Copper alloy sheet for heat radiation component and heat radiation component |
| JP2020531777A (en) * | 2017-08-22 | 2020-11-05 | イノヒート スウェーデン アべ | Heat transfer plate and heat exchanger |
| JPWO2020129863A1 (en) * | 2018-12-21 | 2021-11-25 | 日本発條株式会社 | Joining method and joining body |
| US20220009022A1 (en) * | 2018-12-21 | 2022-01-13 | Nhk Spring Co., Ltd. | Joining method and joined body |
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