JPH1147960A - Heat exchanger - Google Patents
Heat exchangerInfo
- Publication number
- JPH1147960A JPH1147960A JP20898497A JP20898497A JPH1147960A JP H1147960 A JPH1147960 A JP H1147960A JP 20898497 A JP20898497 A JP 20898497A JP 20898497 A JP20898497 A JP 20898497A JP H1147960 A JPH1147960 A JP H1147960A
- Authority
- JP
- Japan
- Prior art keywords
- metal plate
- members
- probe
- heat exchanger
- metallic 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/12—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding
- B23K20/122—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding using a non-consumable tool, e.g. friction stir welding
- B23K20/1265—Non-butt welded joints, e.g. overlap-joints, T-joints or spot welds
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、電子部品用のヒ
ートシンクや熱交換管等として用いられる熱交換器に関
する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat exchanger used as a heat sink or a heat exchange tube for electronic parts.
【０００２】[0002]
【従来の技術及び発明が解決しようとする課題】従来、
前記ヒートシンクや熱交換管等の熱交換器は、例えば、
押出加工により製造されたり、基材の表面にろう付や溶
接によってフィンを取り付けることにより製造されてい
た。このような熱交換器の性能を向上させようとする場
合、フィンの数を増やしたり、フィンを大型化するなど
して取り付けられたフィンの総表面積を増加させれば良
い。2. Description of the Related Art
The heat exchanger such as the heat sink and the heat exchange tube, for example,
They have been manufactured by extrusion or by attaching fins to the surface of a substrate by brazing or welding. In order to improve the performance of such a heat exchanger, the total surface area of the attached fins may be increased by increasing the number of fins or increasing the size of the fins.
【０００３】ところが、ろう付や溶接によって多数のフ
ィンを基材に密に取り付けるのは、一般にフィンが薄肉
であることもあいまって困難である。このため、これら
の方法により製造された熱交換器は、高い熱交換効率を
有するものではなかった。加えて、ろう付によって基材
とフィンを接合した場合には、接触熱抵抗が大きく、ま
た、溶接によって接合した場合には、接合部に熱伝導を
阻害する金属間化合物を形成しやすく、いずれの場合も
伝熱性の点で問題があり、熱交換効率を低下させる一因
となっていた。[0003] However, it is generally difficult to attach a large number of fins to a base material by brazing or welding, because the fins are thin. For this reason, the heat exchangers manufactured by these methods do not have high heat exchange efficiency. In addition, when the base and the fin are joined by brazing, the contact thermal resistance is large, and when joined by welding, an intermetallic compound that inhibits heat conduction is easily formed at the joint. Also in the case of (1), there is a problem in terms of heat transfer, which has been one of the causes of lowering the heat exchange efficiency.
【０００４】また、ろう付や溶接によって多数のフィン
を取り付けるには手間がかかるため、コストの増加を招
くものであった。In addition, it takes time and effort to attach a large number of fins by brazing or welding, resulting in an increase in cost.
【０００５】一方、押出加工によって熱交換器を製造す
る場合、フィンを一体に設けることができるため、熱伝
導が阻害されることはないが、押出加工の性質上大型の
フィンを設けたり、肉厚の薄いフィンを多数設けること
が困難であり、押出加工により製造される熱交換器も高
い熱交換効率を有することができなかった。On the other hand, when a heat exchanger is manufactured by extrusion, the fins can be provided integrally, so that heat conduction is not hindered. It was difficult to provide a large number of thin fins, and a heat exchanger manufactured by extrusion could not have high heat exchange efficiency.
【０００６】この発明は、上記問題に鑑みてなされたも
のであり、高い熱交換効率を有する熱交換器でありなが
ら、容易かつ低コストで製造され得る熱交換器の提供を
目的とする。[0006] The present invention has been made in view of the above problems, and has as its object to provide a heat exchanger that can be easily and inexpensively manufactured while having a high heat exchange efficiency.
【０００７】[0007]
【課題を解決するための手段】上記目的を達成するため
に、この発明の請求項１にかかる熱交換器は、複数枚の
金属製板状部材が厚さ方向に重ね合わされるとともに、
当該金属製板状部材の各境界面に回転するプローブを挿
入することにより各境界面部が摩擦撹拌接合され、か
つ、各金属製板状部材の未接合部が、互いに間隔を開け
るように広げられてフィン部が形成されてなることを特
徴とするものである。In order to achieve the above object, a heat exchanger according to claim 1 of the present invention has a structure in which a plurality of metal plate-like members are superimposed in a thickness direction.
By inserting a rotating probe into each boundary surface of the metal plate-like member, each boundary surface portion is friction stir welded, and unjoined portions of each metal plate-like member are widened so as to be spaced apart from each other. And a fin portion is formed.
【０００８】また、請求項２にかかる熱交換器は、複数
枚の金属製板状部材が厚さ方向に重ね合わされるととも
に、これら金属製板状部材の端面と基材の外面とが突き
合わせ状態となされ、かつ、この金属製板状部材と基材
の突き合わせ部に、回転するプローブを挿入することに
より、各金属製板状部材の端面と基材の外面とが摩擦撹
拌接合されるとともに、各金属製板状部材の未接合部
が、互いに間隔を開けるように広げられてフィン部が形
成されてなることを特徴とするものである。According to a second aspect of the present invention, there is provided a heat exchanger in which a plurality of metal plate-like members are overlapped in a thickness direction, and an end surface of the metal plate-like member and an outer surface of a base material abut. And, by inserting a rotating probe into the abutting portion of the metal plate-shaped member and the base material, while the end face of each metal plate-shaped member and the outer surface of the base material are friction stir welded, An unjoined portion of each metal plate-like member is widened so as to be spaced apart from each other to form a fin portion.
【０００９】請求項１または請求項２にかかる熱交換器
は、厚さ方向に重ね合わされた金属製板状部材どうし、
あるいは、当該板状部材と基材とが摩擦撹拌接合法によ
り接合されて得られるものであるため、接合される金属
製板状部材の形状や枚数に制限を受けることはない。し
たがって、当該熱交換器では、取り付けられたフィンの
総表面積を任意に広く設定することができ、高い熱交換
効率を有するものとなる。さらに、摩擦撹拌接合法は固
相接合法の範疇に属する接合法であるため、接合部の熱
抵抗が極めて小さく、金属間化合物も形成されず、接合
部分において熱伝導が阻害されることがない。また、多
数の金属製板状部材を重ね合わせて接合する際において
も、摩擦撹拌接合法により容易にそれらを接合すること
ができ、フィン部も金属製板状部材の未接合部を互いに
間隔を開けるように厚さ方向に広げて容易に形成される
ため、請求項１、２にかかる熱交換器は、高い熱交換効
率を有するにも関わらず比較的低コストで製造され得
る。The heat exchanger according to claim 1 or 2 is characterized in that the metal plate-like members superposed in the thickness direction are
Alternatively, since the plate-like member and the base material are obtained by being joined by a friction stir welding method, there is no limitation on the shape and the number of metal plate-like members to be joined. Therefore, in the heat exchanger, the total surface area of the attached fins can be set arbitrarily large, and the heat exchanger has high heat exchange efficiency. Furthermore, since friction stir welding is a joining method belonging to the category of solid-state joining, the thermal resistance of the joint is extremely small, no intermetallic compound is formed, and heat conduction is not hindered at the joint. . Also, when a large number of metal plate-like members are overlapped and joined together, they can be easily joined by the friction stir welding method, and the fins are also provided at intervals between the unjoined portions of the metal plate-like members. The heat exchanger according to claims 1 and 2 can be manufactured at a relatively low cost despite having a high heat exchange efficiency because the heat exchanger is easily formed by being spread in the thickness direction so as to be opened.
【００１０】[0010]
【発明の実施の形態】次に、請求項１にかかる発明を、
図１、２に記載した実施形態に基づいて説明する。Next, the invention according to claim 1 will be described.
A description will be given based on the embodiment described in FIGS.
【００１１】図１は、電子部品用のヒートシンクなどと
して用いられる熱交換器（１）を示している。この熱交
換器（１）は、４枚の金属製板状部材（２）が厚さ方向
に重ね合わされ、幅方向の中央部分を長さ方向に沿って
摩擦撹拌接合されるとともに、幅方向の両端部に存在す
る未接合部（２０）が長さ方向に一定間隔で分断された
ものである。そして、未接合部（２０）において、各金
属製板状部材（２）が厚さ方向に互いに間隔を開けるよ
うに広げられているとともに、長さ方向に隣接する未接
合部（２０）においては、隣接する金属製板状部材
（２）（２）どうしが厚さ方向の同位置に配置されない
ように互い違いに厚さ方向の位置を異にする態様で広げ
られてフィン部（２１）が形成されている。FIG. 1 shows a heat exchanger (1) used as a heat sink or the like for electronic components. In this heat exchanger (1), four metal plate-like members (2) are superposed in the thickness direction, and the central portion in the width direction is friction stir welded along the length direction, and the heat exchanger (1) is formed in the width direction. The unjoined portions (20) existing at both ends are divided at regular intervals in the length direction. In the unjoined portion (20), the metal plate members (2) are spread so as to be spaced apart from each other in the thickness direction, and in the unjoined portion (20) adjacent in the length direction. The fin portions (21) are formed by alternately spreading the adjacent metal plate members (2) (2) so that the adjacent metal plate members (2) are not arranged at the same position in the thickness direction. Have been.
【００１２】次に前記熱交換器（１）をその製造方法と
ともに詳しく説明する。Next, the heat exchanger (1) will be described in detail together with its manufacturing method.
【００１３】まず、前記熱交換器（１）を構成する金属
製板状部材（２）を用意する。金属製板状部材（２）の
材質は特に限定されないが、軽量性や高熱伝導性及び製
造の容易性などの点からアルミニウム材を用いるのが望
ましい。First, a metal plate-like member (2) constituting the heat exchanger (1) is prepared. The material of the metal plate-like member (2) is not particularly limited, but it is preferable to use an aluminum material from the viewpoint of lightness, high thermal conductivity, ease of manufacture, and the like.
【００１４】また、図２に示す（３）は、前記金属製板
状部材（２）を摩擦撹拌接合するための接合装置であ
る。この接合装置（３）は、径大の円柱状回転子（３
０）の端部軸線上に、径小のピン状プローブ（３１）が
突出して一体に設けられたものである。前記回転子（３
０）、プローブ（３１）ともに、金属製板状部材（２）
を構成するＪＩＳＡ１１００アルミニウムよりも硬質の
材料によって製作されている。なお、図示は省略した
が、プローブ（３１）の周面には撹拌用の凹凸が形成さ
れている。(3) shown in FIG. 2 is a welding device for friction stir welding the metal plate member (2). The joining device (3) includes a large-diameter cylindrical rotor (3).
A pin probe (31) having a small diameter protrudes and is integrally provided on the end axis of (0). The rotor (3
0) and the probe (31) are both metal plate members (2)
Is made of a material harder than JISA1100 aluminum. Although not shown in the drawings, irregularities for stirring are formed on the peripheral surface of the probe (31).
【００１５】次に、前述の長尺の金属製板状部材（２）
を、図２に示すように、縁を揃えて厚さ方向に重ね合わ
せる。Next, the above-mentioned long metal plate member (2)
Are overlapped in the thickness direction with their edges aligned, as shown in FIG.
【００１６】重ね合わされた金属製板状部材（２）の長
さ方向の一端部の幅方向中央部に、前記接合装置（３）
のプローブ（３１）を挿入する。挿入は、最上層の金属
製板状部材（２）表面から重ね合せ方向に行い、少なく
ともプローブ（３１）の先端が最下層の金属製板状部材
（２）に達するまで行う。また、この実施形態の場合、
プローブ（３１）を最下層の金属製板状部材（２）に達
するまで挿入した状態で、回転子（３０）におけるプロ
ーブ（３１）側の平坦面（３２）により、最上層の金属
製板状部材（２）の表面を押圧するものとした。これ
は、接合時の素材の飛散を防止するとともに、接合部分
表面（１１）を平滑とするためである。The joining device (3) is provided at the center in the width direction at one end in the length direction of the superposed metal plate-like members (2).
Probe (31) is inserted. The insertion is performed from the surface of the uppermost metal plate-like member (2) in the overlapping direction until at least the tip of the probe (31) reaches the lowermost metal plate-like member (2). Also, in this embodiment,
With the probe (31) inserted until it reaches the lowermost metal plate-like member (2), the flat surface (32) on the probe (31) side of the rotor (30) is used to form the uppermost metal plate-like member. The surface of the member (2) was pressed. This is to prevent scattering of the material at the time of joining and to smooth the surface (11) of the joined portion.
【００１７】そして、前記状態を維持しつつ、回転子
（３０）及びプローブ（３１）を、移動方向の後方にわ
ずかに傾けた状態で金属製板状部材（２）の長さ方向全
体にわたって相対的に移動させる。While maintaining the above state, the rotor (30) and the probe (31) are relatively tilted rearward in the moving direction and are relatively moved over the entire length of the metal plate-like member (2). Move.
【００１８】前記プローブ（３０）の回転と各金属製板
状部材（２）との摺擦により発生する摩擦熱、あるいは
さらに回転子（３０）の端面（３２）と最上層の金属製
板状部材（２）との摺擦に伴い発生する摩擦熱により、
プローブ（３１）との接触部分近傍において金属製板状
部材（２）が可塑化軟化し、かつ、プローブ（３１）に
より撹拌されるとともに、プローブ（３１）の移動に伴
って軟化撹拌部分がプローブ（３１）の進行圧力を受け
てプローブ（３１）の通過溝を埋めるようにプローブ
（３１）の進行方向後方へと回り込む態様で塑性流動し
たのち、摩擦熱を急速に失って冷却固化される。この現
象がプローブ（３１）の移動に伴って順次繰り返されて
いき、最終的に各金属製板状部材（２）の境界面が摩擦
撹拌接合される。The frictional heat generated by the rotation of the probe (30) and the sliding of each metal plate-like member (2), or the end surface (32) of the rotor (30) and the uppermost metal plate-like member The frictional heat generated due to the rubbing with the member (2)
The metal plate-shaped member (2) is plasticized and softened in the vicinity of the contact portion with the probe (31) and is stirred by the probe (31). After receiving the advancing pressure of (31), the fluid flows plastically in such a manner as to go backward in the traveling direction of the probe (31) so as to fill the passage groove of the probe (31), and then rapidly loses frictional heat and is cooled and solidified. This phenomenon is sequentially repeated with the movement of the probe (31), and finally the boundary surfaces of the metal plate members (2) are friction stir welded.
【００１９】次に、金属製板状部材（２）の接合部（１
１）を挟む幅方向両側の未接合部（２０）を所定の間隔
で長さ方向に分断する。そして、分断された未接合部
（２０）を互いに間隔を開けるように図２に示す厚さ方
向にそれぞれ曲成してフィン部（２１）を形成する。こ
の実施形態の場合、長さ方向に分断された各フィン部
（２１）は、隣り合うものどうしにおいて、それぞれの
金属製板状部材（２）が厚さ方向に互い違いに配置され
た状態となされている。以上によって所定形状の熱交換
器（１）を得る。Next, the joining portion (1) of the metal plate member (2)
1) The unjoined portions (20) on both sides in the width direction sandwiching 1) are divided at predetermined intervals in the length direction. Then, the divided unjoined portions (20) are bent in the thickness direction shown in FIG. 2 so as to leave an interval therebetween to form fin portions (21). In the case of this embodiment, each of the fin portions (21) divided in the length direction has a state in which the metal plate members (2) are alternately arranged in the thickness direction between adjacent ones. ing. Thus, a heat exchanger (1) having a predetermined shape is obtained.
【００２０】上記熱交換器（１）は、金属製板状部材
（２）を固相接合の範疇に入る摩擦撹拌接合によって接
合されたものであるため、接合部分（１０）に金属間化
合物が形成されず、したがって熱伝導が阻害されること
なく高い熱交換効率を有するものとなる。また、熱交換
器（１）を構成する金属製板状部材（２）は、圧延によ
り得ることができ、その製造が容易である。さらに、放
熱用のフィン部（２１）を形成するのも金属製板状部材
（２）の未接合部（２０）を厚さ方向に広げるだけで良
い。したがって、上記熱交換器（１）は極めて低コスト
で製造される。In the heat exchanger (1), the metal plate-like member (2) is joined by friction stir welding which belongs to the category of solid-phase joining, so that the intermetallic compound is attached to the joining portion (10). It is not formed and therefore has high heat exchange efficiency without hindering heat conduction. Further, the metal plate-like member (2) constituting the heat exchanger (1) can be obtained by rolling, and its manufacture is easy. Further, the fin portion (21) for heat radiation may be formed only by expanding the unjoined portion (20) of the metal plate member (2) in the thickness direction. Therefore, the heat exchanger (1) is manufactured at extremely low cost.
【００２１】上記熱交換器（１）は、これを電子部品用
の放熱器として用いる場合、具体的には、パワートラン
ジスターなど冷却対象物である電子部品の表面を、当該
熱交換器（１）の接合部表面（１１）に密着状態に固定
して使用される。なお、この実施形態の場合、接合部表
面（１１）は、摩擦撹拌接合時に回転子（３０）の平坦
面（３２）に押圧されて平滑面に形成されているから、
パワートランジスター等の電子部品との接触面積が大き
くなり放熱率を高めることができる。When the heat exchanger (1) is used as a radiator for electronic components, specifically, the surface of an electronic component to be cooled, such as a power transistor, is placed on the heat exchanger (1). Is used in a state of being tightly adhered to the joint surface (11). In the case of this embodiment, the joint surface (11) is pressed by the flat surface (32) of the rotor (30) during friction stir welding and is formed as a smooth surface.
The contact area with an electronic component such as a power transistor is increased, and the heat radiation rate can be increased.
【００２２】次に、請求項２にかかる発明を、図３、４
に記載した実施形態に基づいて説明する。Next, the invention according to claim 2 will be described with reference to FIGS.
The description will be made based on the embodiment described in (1).
【００２３】図３は、基材（４）の内部を流れる熱交換
媒体と外部空気との間で熱交換を行う熱交換管等として
用いられる熱交換器（１）を示している。この熱交換器
（１）は、矩形パイプ状の基材（４）の両側面に、厚さ
方向に重ね合わされた金属製板状部材（２）が、幅方向
の一端面を突き合わせ状態となされて、当該突き合わせ
部が長さ方向に接合されるとともに、金属製板状部材
（２）の未接合部（２０）が長さ方向に一定間隔で分断
されたものである。そして、各金属製板状部材（２）の
未接合部（２０）は、図１、２に示した実施形態と同
様、互いに間隔を開けるように厚さ方向に広げられてフ
ィン部（２１）が形成されている。FIG. 3 shows a heat exchanger (1) used as a heat exchange tube or the like for exchanging heat between a heat exchange medium flowing inside a substrate (4) and external air. In this heat exchanger (1), a metal plate-like member (2) superposed in the thickness direction on both side surfaces of a rectangular pipe-shaped base material (4) has one end surface in a width direction abutted. Thus, the butted portions are joined in the length direction, and the unjoined portions (20) of the metal plate-like member (2) are divided at regular intervals in the length direction. The unjoined portions (20) of the metal plate members (2) are spread in the thickness direction so as to be spaced apart from each other as in the embodiment shown in FIGS. Are formed.
【００２４】次に、この熱交換器（１）をその製造方法
とともに詳しく説明する。Next, this heat exchanger (1) will be described in detail together with its manufacturing method.
【００２５】まず、前記基材（４）及び金属製板状部材
（２）を準備する。First, the base material (4) and the metal plate member (2) are prepared.
【００２６】基材（４）は、実施形態では、横断面の外
部形状が正方形で、その中心に円形の中空部（４ａ）を
有するアルミニウム中空押出材によって形成されてい
る。そして、この基材（４）の中空部（４ａ）には、熱
交換に供される媒体が流通されるものとなされている。In the embodiment, the base material (4) is formed of an aluminum hollow extruded material having a square outer cross section and a circular hollow portion (4a) at the center thereof. The medium to be subjected to heat exchange flows through the hollow portion (4a) of the substrate (4).
【００２７】金属製板状部材（２）としては、この実施
形態では、長方形状のアルミニウム材が用いられてい
る。In this embodiment, a rectangular aluminum material is used as the metal plate member (2).
【００２８】次に、前記長尺の金属製板状部材（２）
を、図４に示すように、縁を揃えて厚さ方向に４枚重ね
合わせて一組とし、この組を２組準備する。そして、基
材（４）の両側面に、前記重ね合わされた金属製板状部
材（２）の幅方向の一側面をそれぞれ突き合わせるとと
もに、接合装置（３）により、突き合わせ部を長さ方向
に沿って摩擦撹拌接合し、基材（４）と金属製板状部材
（２）とを接合する。Next, the long metal plate member (2)
As shown in FIG. 4, four sheets are superposed in the thickness direction with the edges aligned to form one set, and two sets of this set are prepared. Then, one side in the width direction of the superposed metal plate-like member (2) is respectively butted against both side surfaces of the base material (4), and the butted portion is moved in the length direction by the bonding device (3). The base material (4) and the metal plate member (2) are joined together by friction stir welding.
【００２９】この接合には、前述の接合装置と同様の接
合装置（３）を用い、また、接合方法は前述の実施形態
と同様であるため、その説明を省略する。For this joining, a joining device (3) similar to the above-described joining device is used, and since the joining method is the same as that of the above-described embodiment, the description thereof is omitted.
【００３０】次に、金属製板状部材（２）の未接合部
（２０）を所定の間隔で長さ方向に分断する。そして、
分断された未接合部（２０）を互いに間隔を開けるよう
に図４に矢印で示す厚さ方向にそれぞれ曲成してフィン
部（２１）を形成する。この実施形態の場合、長さ方向
に分断された各フィン部（２１）は、隣り合うものどう
しにおいて、それぞれの金属製板状部材（２）が厚さ方
向に互い違いに配置された状態となされている。Next, the unjoined portions (20) of the metal plate-like member (2) are cut at predetermined intervals in the length direction. And
The divided unjoined portions (20) are bent in the thickness direction indicated by the arrows in FIG. 4 so as to leave an interval therebetween to form fin portions (21). In the case of this embodiment, each of the fin portions (21) divided in the length direction has a state in which the metal plate members (2) are alternately arranged in the thickness direction between adjacent ones. ing.
【００３１】以上によって、熱交換管等として用いられ
る熱交換器（１）を得る。Thus, a heat exchanger (1) used as a heat exchange tube or the like is obtained.
【００３２】前記熱交換器（１）は、放熱フィンとなる
金属製板状部材（２）と熱交換媒体が流通される基材
（４）が摩擦撹拌接合法により接合されたものであり、
基材（４）と金属製板状部材（２）との接合部（１０）
において熱伝導が阻害されることがないため、高い熱交
換効率を有することができる。また、各部材の製造が容
易であり、また、両部材を接合するための摩擦撹拌接合
法も比較的容易であるため、低コストで製造することが
できる。In the heat exchanger (1), a metal plate-like member (2) serving as a radiation fin and a substrate (4) through which a heat exchange medium flows are joined by a friction stir welding method.
Joint (10) between base material (4) and metal plate-like member (2)
In this case, the heat conduction is not hindered, so that a high heat exchange efficiency can be obtained. In addition, since each member is easy to manufacture, and the friction stir welding method for joining both members is relatively easy, it can be manufactured at low cost.
【００３３】なお、この発明において、金属製板状部材
（２）や基材（４）の形状は、上記実施形態に限定され
るものではなく、特許請求の範囲に記載の範囲内で任意
にその形状を選択し得る。また、その材質も、鋼、ステ
ンレス、銅、アルミニウム、またはこれらの合金など特
に限定されるものではなく、その製造方法も、圧延や押
出等、特に限定されるものではない。また、金属製板状
部材（２）の重ね合わせ枚数は４枚に限定される訳では
なく、任意の枚数を重ね合わせれば良い。In the present invention, the shapes of the metal plate-like member (2) and the base material (4) are not limited to the above embodiment, but may be arbitrarily set within the scope of the claims. The shape can be chosen. Also, the material is not particularly limited, such as steel, stainless steel, copper, aluminum, or an alloy thereof, and the manufacturing method is not particularly limited, such as rolling or extrusion. The number of superposed metal plate members (2) is not limited to four, but may be any number.
【００３４】[0034]
【発明の効果】この発明にかかる熱交換器は、上述の次
第であり、金属製板状部材が互いに摩擦撹拌接合され、
または、基材と金属製板状部材が摩擦撹拌接合されて得
られたものであるため、接合される金属製板状部材の形
状や枚数に制限を受けることはない。したがって、当該
熱交換器は、取り付けられたフィンの総表面積を任意に
広く設定することができ、高い熱交換効率を有するもの
となる。さらに、金属製板状部材を接合する摩擦撹拌接
合法は固相接合法の範疇に属する接合法であるため、接
合部の熱抵抗も極めて小さく、金属間化合物を形成せ
ず、接合部分において熱伝導が阻害されることがないた
め、益々熱交換効率を向上することができる。また、金
属製板状部材どうしあるいは金属製板状部材と基材とが
接合容易な摩擦撹拌接合法により接合され、また、フィ
ン部も金属製板状部材の未接合部を広げて容易に形成さ
れるため、高い熱交換効率を実現し得るにも関わらず比
較的低コストで製造できる。According to the heat exchanger of the present invention, the metal plate members are friction stir welded to each other.
Alternatively, since the base member and the metal plate member are obtained by friction stir welding, the shape and the number of the metal plate members to be joined are not limited. Therefore, the heat exchanger can set the total surface area of the attached fins arbitrarily large, and have high heat exchange efficiency. Furthermore, since the friction stir welding method for joining metal plate-shaped members is a joining method belonging to the category of solid-phase welding, the heat resistance of the joint is extremely small, no intermetallic compound is formed, and the heat is applied at the joint. Since the conduction is not hindered, the heat exchange efficiency can be further improved. In addition, the metal plate-like members or the metal plate-like member and the base material are joined by a friction stir welding method that is easy to join, and the fin portion is easily formed by expanding the unjoined portion of the metal plate-like member. Therefore, it can be manufactured at a relatively low cost although high heat exchange efficiency can be realized.
【図１】この発明の一実施形態を示す斜視図である。FIG. 1 is a perspective view showing an embodiment of the present invention.
【図２】図１に示す実施形態の製造過程を示す斜視図で
ある。FIG. 2 is a perspective view showing a manufacturing process of the embodiment shown in FIG.
【図３】他の実施形態を示す斜視図である。FIG. 3 is a perspective view showing another embodiment.
【図４】図３に示す他の実施形態の製造過程を示す斜視
図である。FIG. 4 is a perspective view showing a manufacturing process of another embodiment shown in FIG. 3;
１…熱交換器 ２…金属製板状部材 ３…接合装置 ４…基材 10…接合部 20…未接合部 21…フィン部 DESCRIPTION OF SYMBOLS 1 ... Heat exchanger 2 ... Metal plate member 3 ... Joining apparatus 4 ... Base material 10 ... Joined part 20 ... Unjoined part 21 ... Fin part
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 ＦＩ // Ｂ２３Ｋ 101:14 ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 6 Identification code FI // B23K 101: 14
Claims (2)
向に重ね合わされるとともに、 当該金属製板状部材（２）の各境界面に回転するプロー
ブ（３１）を挿入することにより各境界面部が摩擦撹拌
接合され、 かつ、各金属製板状部材（２）の未接合部（２０）が互
いに間隔を開けるように広げられて、フィン部（２１）
が形成されてなることを特徴とする熱交換器。1. A method in which a plurality of metal plate-like members (2) are superposed in a thickness direction and a rotating probe (31) is inserted into each boundary surface of the metal plate-like members (2). As a result, friction stir welding is performed at each boundary portion, and unjoined portions (20) of the metal plate members (2) are expanded so as to be spaced apart from each other, so that the fin portions (21) are formed.
A heat exchanger characterized in that a heat exchanger is formed.
向に重ね合わされるとともに、 これら金属製板状部材（２）の端面と基材（４）の外面
とが突き合わせ状態となされ、 かつ、この金属製板状部材（２）と基材（４）の突き合
わせ部に、回転するプローブ（３１）を挿入することに
より、各金属製板状部材（２）の端面と基材（４）の外
面とが摩擦撹拌接合されるとともに、 各金属製板状部材（２）の未接合部（２０）が互いに間
隔を開けるように広げられて、フィン部（２１）が形成
されてなることを特徴とする熱交換器。2. A plurality of metal plate-like members (2) are superposed in the thickness direction, and an end surface of these metal plate-like members (2) and an outer surface of a base material (4) are in an abutting state. The rotating probe (31) is inserted into the abutting portion between the metal plate-like member (2) and the base material (4), so that the end face of each metal plate-like member (2) and the base material The outer surface of (4) is friction stir welded, and the unjoined portions (20) of each metal plate-like member (2) are expanded so as to be spaced apart from each other to form fin portions (21). A heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20898497A JPH1147960A (en) | 1997-08-04 | 1997-08-04 | Heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20898497A JPH1147960A (en) | 1997-08-04 | 1997-08-04 | Heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH1147960A true JPH1147960A (en) | 1999-02-23 |
Family
ID=16565413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20898497A Pending JPH1147960A (en) | 1997-08-04 | 1997-08-04 | Heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH1147960A (en) |
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| US6352193B1 (en) | 2000-08-01 | 2002-03-05 | General Electric Company | Apparatus for joining electrically conductive materials |
| WO2002082536A2 (en) * | 2001-04-09 | 2002-10-17 | Piesold, Alexander, James | Laminated heat transfer device and method of producing thereof |
| JP2003025078A (en) * | 2001-07-10 | 2003-01-28 | Dowa Mining Co Ltd | Copper, copper-base alloy and method of manufacturing the same |
| US6735864B2 (en) | 2000-01-26 | 2004-05-18 | Matsushita Electric Industrial Co., Ltd. | Heatsink method of manufacturing the same and cooling apparatus using the same |
| US6739495B2 (en) * | 2001-07-25 | 2004-05-25 | Hitachi, Ltd. | Friction stir welding method and component part welded by the method |
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| US6735864B2 (en) | 2000-01-26 | 2004-05-18 | Matsushita Electric Industrial Co., Ltd. | Heatsink method of manufacturing the same and cooling apparatus using the same |
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| US6739495B2 (en) * | 2001-07-25 | 2004-05-25 | Hitachi, Ltd. | Friction stir welding method and component part welded by the method |
| JP4724841B2 (en) * | 2003-09-26 | 2011-07-13 | 日本ケミコン株式会社 | Friction stir welding method and connection structure using the friction stir welding method |
| JP2005118877A (en) * | 2003-09-26 | 2005-05-12 | Nippon Chemicon Corp | Friction stirring and joining method, and connection structure using the same |
| KR100650122B1 (en) | 2004-09-20 | 2006-11-27 | 잘만테크 주식회사 | Heat sink |
| JP2008085149A (en) * | 2006-09-28 | 2008-04-10 | Fuji Electric Holdings Co Ltd | Semiconductor device and its wiring bonding method, friction stir bonding apparatus |
| US9541331B2 (en) | 2009-07-16 | 2017-01-10 | Lockheed Martin Corporation | Helical tube bundle arrangements for heat exchangers |
| JP2015099011A (en) * | 2009-07-16 | 2015-05-28 | ロッキード マーティン コーポレーション | Helical tube bundle arrangement for heat exchanger |
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| CN103313574A (en) * | 2012-03-06 | 2013-09-18 | 宏碁股份有限公司 | Heat dissipation device |
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