JP6706599B2 - Joint of conductive materials - Google Patents
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- JP6706599B2 JP6706599B2 JP2017168421A JP2017168421A JP6706599B2 JP 6706599 B2 JP6706599 B2 JP 6706599B2 JP 2017168421 A JP2017168421 A JP 2017168421A JP 2017168421 A JP2017168421 A JP 2017168421A JP 6706599 B2 JP6706599 B2 JP 6706599B2
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- conductive
- solid solution
- joined body
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- 239000004020 conductor Substances 0.000 title claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 85
- 239000002184 metal Substances 0.000 claims description 85
- 239000006104 solid solution Substances 0.000 claims description 47
- 229910052782 aluminium Inorganic materials 0.000 claims description 16
- 238000002844 melting Methods 0.000 claims description 12
- 230000008018 melting Effects 0.000 claims description 12
- 238000005192 partition Methods 0.000 claims description 9
- 229910052725 zinc Inorganic materials 0.000 claims description 8
- 238000000034 method Methods 0.000 description 25
- 239000011701 zinc Substances 0.000 description 15
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 10
- 238000010586 diagram Methods 0.000 description 9
- 238000010438 heat treatment Methods 0.000 description 8
- 239000002699 waste material Substances 0.000 description 7
- 239000010949 copper Substances 0.000 description 5
- 230000002093 peripheral effect Effects 0.000 description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 238000007796 conventional method Methods 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical group [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 229910001285 shape-memory alloy Inorganic materials 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- JBQYATWDVHIOAR-UHFFFAOYSA-N tellanylidenegermanium Chemical compound [Te]=[Ge] JBQYATWDVHIOAR-UHFFFAOYSA-N 0.000 description 1
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
- B23K1/00—Soldering, e.g. brazing, or unsoldering
-
- 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
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/19—Soldering, e.g. brazing, or unsoldering taking account of the properties of the materials to be soldered
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/02—Soldered or welded connections
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/02—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for soldered or welded connections
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Description
本発明は、導電部材の接合体および接合方法に関する。 The present invention relates to a joined body of a conductive member and a joining method.
従来から、アルミニウム等で構成された導電部材同士の間に中間部材を設け、この中間部材を介して両者を接合する技術が種々提案されている（例えば、特許文献１〜４等）。 Conventionally, various techniques have been proposed in which an intermediate member is provided between conductive members made of aluminum or the like, and the two are joined via the intermediate member (for example, Patent Documents 1 to 4).
ところが、従来技術によって、中間部材を介して加締めや溶融によって導電線同士を接合する場合には、中間部材の特性等により、接合体の仕上がり等に種々の影響が及ぶことが分かっている。 However, it has been known from the related art that, when the conductive wires are joined together by caulking or melting via the intermediate member, various effects are exerted on the finish of the joined body depending on the characteristics of the intermediate member.
例えば特許文献１に係る従来技術は、アルミニウム電線と銅電線との接合において、中間部材を間に設け、突き当て状態のまま機械的に加締めて接続しているが、次のような問題がある。 For example, in the conventional technique according to Patent Document 1, when joining an aluminum electric wire and a copper electric wire, an intermediate member is provided between them and mechanically caulked and connected in a butt state, but the following problems occur. is there.
即ち、緻密で硬いアルミニウム酸化膜を破壊して導通を確保する上で、機械的な加締めでは十分な導通が得られ難く、高抵抗となるという不都合がある。また、より強い加締めで酸化膜の破壊を行う場合には、電線などの部材が減面し、部材本来の導電性や強度を損ねてしまうという問題もある。さらに、銅などと比べ弾性力の小さいアルミニウム部材を加締めた場合には、減面したままの部材が加締め部から抜け落ちてしまう虞がある。 That is, in order to destroy the dense and hard aluminum oxide film to secure electrical continuity, it is difficult to obtain sufficient electrical continuity by mechanical caulking, and there is a disadvantage that the resistance becomes high. In addition, when the oxide film is destroyed by stronger caulking, there is a problem that the members such as electric wires are reduced in surface area and the original conductivity and strength of the members are impaired. Furthermore, when an aluminum member having a smaller elastic force than copper or the like is caulked, there is a possibility that the member having the reduced surface may fall out from the caulking portion.
また、特許文献２に係る従来技術は、熱によって収縮する鉄系形状記憶合金継手と、この中へ突き当て状態に入れた２本の金属パイプとの隙間に熱拡散用Ａｌ合金を介在させて外熱を与えることで熱拡散接合しているが、次のような問題がある。 Further, in the conventional technique according to Patent Document 2, an Al alloy for heat diffusion is interposed in a gap between an iron-based shape memory alloy joint that is contracted by heat and two metal pipes that are put into abutting state. Although thermal diffusion bonding is performed by applying external heat, there are the following problems.
即ち、金属パイプ同士を直接接合する技術ではなく、また形状記憶合金分のスペースを必要とするという難点がある。 That is, it is not a technique for directly joining metal pipes to each other, and there is a problem that a space for a shape memory alloy is required.
また、特許文献３に係る従来技術は、両側に挿入穴を有する金属スリーブへ電力ケーブル用銅導体あるいはアルミ導体を挿入し、凹凸状に変形させることでクサビ形状となった導体が金属スリーブから外れることを防いでいるが、次のような問題がある。 Further, in the conventional technique according to Patent Document 3, a copper conductor or an aluminum conductor for a power cable is inserted into a metal sleeve having insertion holes on both sides and deformed into an uneven shape so that the wedge-shaped conductor is removed from the metal sleeve. It prevents the above, but there are the following problems.
即ち、金属導体同士を直接接合する技術ではなく、また金属スリーブ分のスペースを必要とするという難点がある。 That is, it is not a technique of directly joining metal conductors to each other, and there is a problem that a space for a metal sleeve is required.
また、特許文献４に係る従来技術は、金属同士（Ｍ１とＭ２）を突合せて接合する際に、第三金属（Ｍ３）の存在によりＭ１とＭ３の固溶体と、Ｍ２とＭ３の固溶体で接合界面が構成される接合技術であるが、次のような問題がある。 In addition, in the conventional technique according to Patent Document 4, when the metals (M1 and M2) are butt-joined to each other and joined together, a solid solution of M1 and M3 and a solid solution of M2 and M3 form a bonding interface due to the presence of the third metal (M3). However, there are the following problems.
即ち、突き合わせる金属Ｍ１とＭ２の外周径や形態が異なる場合に、うまく接合できない虞がある。また、撚り電線を接合する場合には、束ねた撚り線の素線間に空間が存在するため、公称の断面積（外周径または直径）は、実際の断面積（外周径または直径）よりも大きくなると想定され、固溶体の接合界面による接合に支障を生じる場合がある。 That is, when the outer diameters or shapes of the abutting metals M1 and M2 are different from each other, there is a possibility that the joining may not be successful. In addition, when joining stranded electric wires, there is a space between the strands of the bundled stranded wires, so the nominal cross-sectional area (outer diameter or diameter) is larger than the actual cross-sectional area (outer diameter or diameter). It is assumed that the size of the solid solution becomes large, which may cause a hindrance to bonding at the bonding interface of the solid solution.
また、特にアルミニウム（Ａｌ）撚り線とＡｌ単線との突き合わせ接合では、両部材の突き当て界面以外の中間部材としての亜鉛（Ｚｎ）を完全には排除できないため、界面周囲に低融点金属が融け残ってしまい、中間部材の無駄を生じたり、接合体の仕上がりにおいてバリや残滓等を生じ外観を損なうという問題もあった。 Further, particularly in the butt-joining of a stranded aluminum (Al) wire and an Al single wire, zinc (Zn) as an intermediate member other than the abutting interface between both members cannot be completely eliminated, so that the low melting point metal melts around the interface. There is also a problem that it remains and wastes the intermediate member, and burrs and debris are generated in the finish of the joined body, thereby impairing the appearance.
本発明は前記事情に鑑みなされたもので、本発明の目的は、省スペースを図ることができ、接合材同士の外周径や形態が異なる場合にも対応でき、中間部材の無駄を排除し、良好な外観を維持することのできる導電部材の接合体および接合方法を提供することにある。 The present invention has been made in view of the above circumstances, the object of the present invention, it is possible to save space, it is also possible to cope with the case where the outer peripheral diameter and the form of the bonding material is different, eliminate the waste of the intermediate member, An object of the present invention is to provide a joined body of conductive members and a joining method capable of maintaining a good appearance.
前記目的を達成するために、請求項１に係る導電部材の接合体は、第１金属で構成される第１導電部材と、第２金属で構成される第２導電部材と、前記第１導電部材と前記第２導電部材との端面同士を接合する第３金属で構成される中間部材と、を備え、前記中間部材は、前記第１導電部材と前記第２導電部材の少なくとも一方の外周径に合わせた窪み状の係合部を有するキャップ部材で構成され、前記中間部材と前記第１導電部材との接合界面または当該接合界面の近傍領域は、前記第１金属と前記第３金属との固溶体である第１固溶体で構成され、前記中間部材と前記第２導電部材との接合界面または当該接合界面の近傍領域は、前記第２金属と前記第３金属との固溶体である第２固溶体で構成され、前記中間部材を構成するキャップ部材は、当該キャップ部材の片面のみに、前記窪み状の係合部を有することを特徴とする。 In order to achieve the above object, a joined body of conductive members according to claim 1 is a first conductive member made of a first metal, a second conductive member made of a second metal, and the first conductive member. An intermediate member made of a third metal that joins end faces of the member and the second conductive member, the intermediate member having an outer peripheral diameter of at least one of the first conductive member and the second conductive member. And a joining interface between the intermediate member and the first conductive member, or a region near the joining interface, between the first metal and the third metal. A first solid solution that is a solid solution, and a bonding interface between the intermediate member and the second conductive member or a region near the bonding interface is a second solid solution that is a solid solution of the second metal and the third metal. The cap member that is configured and that constitutes the intermediate member is characterized in that it has the recessed engagement portion on only one surface of the cap member .
請求項１に記載した導電部材の接合体によれば、中間部材は、第１の導電部材と第２の導電部材の少なくとも一方の外周径に合わせた窪み状の係合部を有するキャップ部材で構成されているので、第１の導電部材と第２の導電部材の外周径が異なる場合であっても中間部材の係合部に確実に係合させることができ、固溶体を介した接合をより確実に行うことができる。 According to the joined body of the conductive members as set forth in claim 1, the intermediate member is a cap member having a recessed engaging portion that matches the outer diameter of at least one of the first conductive member and the second conductive member. Since it is configured, even when the outer diameters of the first conductive member and the second conductive member are different, the first conductive member and the second conductive member can be reliably engaged with the engaging portion of the intermediate member, and the joining via the solid solution can be further performed. It can be done reliably.
請求項２に係る導電部材の接合体は、請求項１に記載の発明について、前記窪み状の係合部は、係合対象としての前記第１の導電部材または前記第２の導電部材の軸心を合わせる位置決め部を兼ねることを特徴とする。 According to a second aspect of the present invention , in a joined body of conductive members , the recess-shaped engaging portion is a shaft of the first conductive member or the second conductive member as an engagement target. The feature is that it also serves as a positioning unit for aligning the mind.
これにより、窪み状の係合部に係合対象としての第１の導電部材または第２の導電部材を係合することで、軸心を合わせることができ、接合をより良好に行うことができる。 With this, by engaging the first conductive member or the second conductive member as the engagement target with the recessed engagement portion, the axes can be aligned, and the joining can be performed better. ..
請求項３に係る導電部材の接合体は、請求項１または請求項２に記載の発明について、前記窪み状の係合部は、前記固溶体による接合を行う前に、係合対象としての前記第１の導電部材または前記第２の導電部材の端部に仮固定し得る深さに設定されることを特徴とする。 A third aspect of the present invention is a joined body of conductive members according to the first aspect or the second aspect, wherein the recessed engagement portion is the engagement target before the joining by the solid solution. It is characterized in that the depth is set so that it can be temporarily fixed to the end of the first conductive member or the second conductive member.
これにより、窪み状の係合部は、固溶体による接合を行う前に第１の導電部材または第２の導電部材の端部を仮固定できるので、安定した状態で接合作業を行うことができる。 Thus, the recessed engagement portion can temporarily fix the end portion of the first conductive member or the second conductive member before performing the joining by the solid solution, so that the joining work can be performed in a stable state.
請求項４に係る導電部材の接合体は、請求項１に記載の発明について、前記固溶体による接合を行う際に、係合対象としての前記第１の導電部材と前記第２の導電部材との間の隔壁部を構成する前記第３金属は、全量が溶融して消費され得る厚さに設定されることを特徴とする。 According to a fourth aspect of the present invention , in a joined body of conductive members, the first conductive member and the second conductive member, which are to be engaged with each other, are joined when the solid solution is joined. It is characterized in that the third metal constituting the partition wall portion is set to a thickness such that the entire amount can be melted and consumed.
これにより、中間部材の無駄を排除してコストの低廉化を図ることができ、また良好な外観を維持することのできる導電部材の接合体を得ることができる。 As a result, it is possible to eliminate waste of the intermediate member, achieve cost reduction, and obtain a joined body of conductive members that can maintain a good appearance.
請求項５に係る導電部材の接合体は、請求項１から請求項４の何れか１項に記載の発明について、前記第１の導電部材および前記第２の導電部材の少なくとも一方は、複数の芯線を束ねた撚り電線であることを特徴とする。 A joined body of conductive members according to claim 5 is the same as the invention according to any one of claims 1 to 4, wherein at least one of the first conductive member and the second conductive member is a plurality of members. It is a twisted electric wire in which core wires are bundled.
これにより、外周径の異なる撚り電線同士あるいは外周径の異なる撚り電線と他種の電線との接合を確実に行うことができる。 As a result, it is possible to reliably join the twisted wires having different outer diameters or the twisted wires having different outer diameters to each other.
請求項６に係る導電部材の接合体は、請求項１から請求項５の何れか１項に記載の発明について、前記第３金属は、前記第１金属および前記第２金属より融点が低い低融点金属で構成されていることを特徴とする。 The joined body of the conductive member according to claim 6 is the same as the invention according to any one of claims 1 to 5, wherein the third metal has a low melting point lower than that of the first metal and the second metal. It is characterized by being composed of a melting point metal.
これにより、第１金属および第２金属の融点未満、第３金属の融点以上の温度環境により、比較的容易に固溶体を形成することができる。 Thereby, the solid solution can be formed relatively easily due to the temperature environment below the melting points of the first metal and the second metal and above the melting point of the third metal.
請求項７に係る導電部材の接合体は、請求項１から請求項５の何れか１項に記載の発明について、前記第１金属および前記第２金属は、Ａｌで構成され、前記第３金属は、Ｚｎで構成され、前記固溶体は、ＡｌとＺｎとの固溶体であることを特徴とする。 Conjugate conductive member according to claim 7, for an invention according to claims 1 to any one of claims 5, wherein the first metal and the second metal is composed of Al, the third metal Is Zn, and the solid solution is a solid solution of Al and Zn.
これにより、比較的容易に導電部材の接合体を得ることができる。 Thereby, the joined body of the conductive members can be obtained relatively easily.
請求項８に係る導電部材の接合体は、請求項１から請求項７の何れか１項に記載の発明について、前記中間部材について、前記第１の導電部材または前記第２の導電部材の端部との対向面に、１または２以上の突起部が形成されていることを特徴とする。 The joined body of the conductive member according to claim 8 is the end of the first conductive member or the second conductive member with respect to the intermediate member in the invention according to any one of claims 1 to 7. One or more protrusions are formed on the surface facing the section.
これにより、接合界面または当該接合界面の近傍領域に、比較的深い深度で固溶体を形成することができる。 As a result, the solid solution can be formed at a relatively deep depth in the bonding interface or a region near the bonding interface.
本発明によれば、省スペースを図ることができ、接合材同士の外周径や形態が異なる場合にも対応でき、中間財の無駄を排除し、良好な外観を維持することのできる導電部材の接合体および接合方法を提供することができる。 ADVANTAGE OF THE INVENTION According to this invention, space saving can be achieved and it can respond also when the outer peripheral diameter and form of joining materials differ, the waste of intermediate goods is eliminated, and the conductive member which can maintain a favorable appearance. A joined body and a joining method can be provided.
［第１の実施の形態］
以下、本発明の第１の実施の形態に係る導電部材の接合方法、接合体１Ａおよびこの接合体１Ａに用いる中間部材（キャップ部材）について図１〜図５を参照して説明する。
[First Embodiment]
Hereinafter, a method for joining conductive members, a joined body 1A, and an intermediate member (cap member) used for the joined body 1A according to the first embodiment of the present invention will be described with reference to FIGS.
ここで、図１（ａ）は、本発明の第１の実施の形態に係る導電部材の接合体１Ａに用いる中間部材（キャップ部材）Ｃ１を示す側面図、図１（ｂ）はその正面図、図１（ｃ）はその背面図、図２および図３は、導電部材の接合体１Ａの接合工程を示す工程図、図４は、導電部材の接合体１Ａの接合状態を示す画像図、図５は、導電部材の接合体１Ａの接合状態を示す模式的断面図である。 Here, FIG. 1A is a side view showing an intermediate member (cap member) C1 used in the joined body 1A of the conductive members according to the first embodiment of the present invention, and FIG. 1(c) is a rear view thereof, FIGS. 2 and 3 are process diagrams showing a joining process of the conductive member joined body 1A, and FIG. 4 is an image diagram showing a joined state of the conductive member joined body 1A. FIG. 5 is a schematic cross-sectional view showing a joined state of the joined body 1A of the conductive members.
（中間部材について）
まず、図１を参照して、第１の実施の形態に係る導電部材の接合体１Ａに用いる中間部材について説明する。
(About intermediate member)
First, with reference to FIG. 1, an intermediate member used for the bonded body 1A of the conductive members according to the first embodiment will be described.
中間部材は、後述する第１金属Ｍ１で構成される第１の導電部材Ｗ１と第２金属Ｍ２で構成される第２の導電部材Ｗ２との端面同士を接合する部材であり、第３金属Ｍ３で構成されている。 The intermediate member is a member that joins end faces of a first conductive member W1 made of a first metal M1 and a second conductive member W2 made of a second metal M2, which will be described later, and a third metal M3. It is composed of.
この中間部材は、第１の導電部材Ｗ１および第２の導電部材Ｗ２の外周径に合わせた窪み状の係合部を有するキャップ部材Ｃ１で構成されている。 This intermediate member is composed of a cap member C1 having a recessed engaging portion that matches the outer diameters of the first conductive member W1 and the second conductive member W2.
即ち、中間部材を構成するキャップ部材Ｃ１は、図１に示すようにキャップ部材Ｃ１の両面に、径の異なる窪み状の係合部１０１、１０２を有している。 That is, as shown in FIG. 1, the cap member C1 forming the intermediate member has recessed engaging portions 101 and 102 having different diameters on both surfaces of the cap member C1.
図１に示す例では、係合部１０１の内径はＤ１、係合部１０２の内径はＤ２に設定され、Ｄ１＞Ｄ２となっている。 In the example shown in FIG. 1, the inner diameter of the engaging portion 101 is set to D1 and the inner diameter of the engaging portion 102 is set to D2, and D1>D2.
なお、係合部１０１、１０２は所定深さを有し、係合部１０１、１０２の間には、所定厚さの隔壁部１０５が形成されている。 The engaging portions 101 and 102 have a predetermined depth, and a partition wall 105 having a predetermined thickness is formed between the engaging portions 101 and 102.
また、キャップ部材Ｃ１が備える窪み状の係合部１０１、１０２は、係合対象としての第１の導電部材Ｗ１または第２の導電部材Ｗ２の軸心を合わせる位置決め部を兼ねている。 In addition, the recessed engaging portions 101 and 102 provided in the cap member C1 also serve as a positioning portion that aligns the axes of the first conductive member W1 or the second conductive member W2 as an engagement target.
これにより、キャップ部材Ｃ１の係合部１０１、１０２に係合対象としての第１の導電部材Ｗ１または第２の導電部材Ｗ２を係合することで、両者の軸心を合わせることができ、接合をより良好に行うことができる。 Thus, by engaging the first conductive member W1 or the second conductive member W2, which is the object of engagement, with the engaging portions 101 and 102 of the cap member C1, it is possible to align the axes of the two and to join them. Can be done better.
また、キャップ部材Ｃ１の係合部１０１、１０２は、固溶体による接合を行う前に、係合対象としての第１の導電部材Ｗ１または第２の導電部材Ｗ２の端部に仮固定し得る深さに設定されている。 In addition, the engaging portions 101 and 102 of the cap member C1 have a depth such that they can be temporarily fixed to the end portion of the first conductive member W1 or the second conductive member W2 as the engagement target before performing the joining by the solid solution. Is set to.
具体的には、例えば、キャップ部材Ｃ１の外径が６．７ｍｍ程度、係合部１０１の内径が５．７ｍｍ程度、係合部１０２の内径が４．５ｍｍ程度の場合に、係合部１０１、１０２の各深さは１．５ｍｍ程度に設定される。 Specifically, for example, when the outer diameter of the cap member C1 is about 6.7 mm, the inner diameter of the engaging portion 101 is about 5.7 mm, and the inner diameter of the engaging portion 102 is about 4.5 mm, the engaging portion 101 , 102 are set to a depth of about 1.5 mm.
また、キャップ部材Ｃ１の窪み状の係合部１０１、１０２は、固溶体による接合を行う際に、係合対象としての第１の導電部材Ｗ１または第２の導電部材Ｗ２の長手方向の厚み（隔壁部１０５の厚み）を構成する第３金属Ｍ３の全量が溶融して消費され得る厚さに設定されることが望ましい。 In addition, the recessed engagement portions 101 and 102 of the cap member C1 have a thickness in the longitudinal direction of the first conductive member W1 or the second conductive member W2 (partition wall) to be engaged when the solid solution is joined. (Thickness of the part 105) It is desirable that the total amount of the third metal M3 that constitutes the portion be melted and consumed.
これにより、中間部材（キャップ部材Ｃ１）の無駄を排除してコストの低廉化を図ることができる。また、接合後のバリ等の発生を低減して、接合体の良好な外観を維持することができる。 This makes it possible to eliminate waste of the intermediate member (cap member C1) and reduce costs. Further, it is possible to reduce the occurrence of burrs and the like after joining and maintain a good appearance of the joined body.
また、第１の導電部材Ｗ１および第２の導電部材Ｗ２の少なくとも一方は、複数の芯線を束ねた撚り電線とすることができる。 Further, at least one of the first conductive member W1 and the second conductive member W2 can be a stranded electric wire in which a plurality of core wires are bundled.
これにより、中間部材（キャップ部材Ｃ１）を用いて、外周径の異なる撚り電線同士あるいは外周径の異なる撚り電線と他種の電線との接合を確実に行うこと可能となる。 This makes it possible to reliably join the twisted wires having different outer diameters or the twisted wires having different outer diameters to each other by using the intermediate member (cap member C1).
また、第３金属Ｍ３は、第１金属Ｍ１および第２金属Ｍ２より融点が低い低融点金属で構成される。 Further, the third metal M3 is composed of a low melting point metal having a lower melting point than the first metal M1 and the second metal M2.
より具体的には、第１金属Ｍ１および第２金属はＭ２は、Ａｌ（アルミニウム）で構成され、第３金属Ｍ３は、Ｚｎ（亜鉛）で構成することができる。 More specifically, the first metal M1 and the second metal M2 can be made of Al (aluminum), and the third metal M3 can be made of Zn (zinc).
これにより、比較的容易に導電部材の接合体を得ることができる。 Thereby, the joined body of the conductive members can be obtained relatively easily.
（接合工程等について）
次に、図２〜図５を参照して、導電部材の接合体１Ａの接合工程等について説明する。
(About joining process)
Next, with reference to FIGS. 2 to 5, a process of joining the joined body 1A of the conductive members and the like will be described.
接合工程では、まず、第１金属Ｍ１で構成される第１の導電部材Ｗ１および第２金属Ｍ２で構成される第２の導電部材Ｗ２を準備する。 In the joining step, first, the first conductive member W1 made of the first metal M1 and the second conductive member W2 made of the second metal M2 are prepared.
図２に示す例では、第１の導電部材Ｗ１は、複数のアルミニウムの芯線を束ねた撚り電線（径はＤ１程度）としている。 In the example shown in FIG. 2, the first conductive member W1 is a stranded electric wire (diameter is about D1) in which a plurality of aluminum core wires are bundled.
また、第２の導電部材Ｗ２は、アルミニウムの単芯線（径はＤ２程度）としている。 Further, the second conductive member W2 is a single-core wire of aluminum (diameter is about D2).
そして、第１の導電部材Ｗ１の端部をＢ１方向に押圧して、第３金属Ｍ３で構成される中間部材（キャップ部材Ｃ１）が備える一方の窪み状の係合部１０１に係合させる。 Then, the end portion of the first conductive member W1 is pressed in the B1 direction to be engaged with one recess-shaped engaging portion 101 included in the intermediate member (cap member C1) made of the third metal M3.
このように、撚り電線で構成される第１の導電部材Ｗ１側の端部にキャップ部材Ｃ１を係合させる工程を、他方の第２の導電部材Ｗ２にキャップ部材Ｃ１を係合させる工程より先に行うことにより、撚り電線がばらける事態を回避することができ、確実に接合することが可能となる。 As described above, the step of engaging the cap member C1 with the end portion on the first conductive member W1 side formed of the stranded wire is preceded by the step of engaging the cap member C1 with the other second conductive member W2. By doing so, it is possible to avoid the situation where the twisted electric wires are scattered, and it is possible to reliably join them.
次いで、第２の導電部材Ｗ２の端部をＢ２方向に押圧して、キャップ部材Ｃ１の他方の係合部１０２に係合させる。 Next, the end portion of the second conductive member W2 is pressed in the B2 direction to engage with the other engaging portion 102 of the cap member C1.
これにより、図３に示すように、キャップ部材Ｃ１を介して第１の導電部材Ｗ１と第２の導電部材Ｗ２とが仮固定された状態となる。 As a result, as shown in FIG. 3, the first conductive member W1 and the second conductive member W2 are temporarily fixed via the cap member C1.
そして、この状態で仮固定部を含む領域を所定温度まで加熱する。 Then, in this state, the region including the temporary fixing portion is heated to a predetermined temperature.
加熱方法は、特には限定されないが、例えば、第１の導電部材Ｗ１と第２の導電部材Ｗ２との間に所定の電力を供給して抵抗発熱により加熱したり、或いは高周波誘導加熱装置等により加熱するようにできる。 The heating method is not particularly limited, but for example, a predetermined electric power is supplied between the first conductive member W1 and the second conductive member W2 to heat by resistance heating, or by a high frequency induction heating device or the like. Can be heated.
なお、加熱時に、Ｂ１、Ｂ２方向に押圧するようにしてもよい。 In addition, you may make it press in B1 and B2 direction at the time of heating.
これにより、図４の画像図に示すように、第１の導電部材Ｗ１と第２の導電部材Ｗ２とが固溶体により接合される。 As a result, as shown in the image diagram of FIG. 4, the first conductive member W1 and the second conductive member W2 are joined by the solid solution.
ここで、図５は、第１の実施の形態に係る導電部材の接合体の接合状態を示す模式的断面図である。 Here, FIG. 5 is a schematic cross-sectional view showing a joined state of the joined body of the conductive members according to the first embodiment.
図５に示すように、図３に示す中間部材（キャップ部材Ｃ１）を構成するＺｎは溶融後、固化して、第１の導電部材Ｗ１および第２の導電部材Ｗ２の端部を外側から接合する。 As shown in FIG. 5, Zn constituting the intermediate member (cap member C1) shown in FIG. 3 is melted and then solidified to join the ends of the first conductive member W1 and the second conductive member W2 from the outside. To do.
一方、接合前において隔壁部１０５で構成されていた接合部Ｃ１ａと第１の導電部材Ｗ１との接合界面Ｌ１または当該接合界面Ｌ１の近傍領域は、第１金属Ｍ１であるＡｌと、第３金属Ｍ３であるＺｎとの固溶体Ｓ１ａで構成される。 On the other hand, the bonding interface L1 between the bonding part C1a formed of the partition wall portion 105 and the first conductive member W1 before bonding or a region in the vicinity of the bonding interface L1 includes Al that is the first metal M1 and the third metal. It is composed of a solid solution S1a with Zn which is M3.
また、接合前において隔壁部１０５で構成されていた接合部Ｃ１ａと、第１の導電部材Ｗ１との接合界面Ｌ１または当該接合界面Ｌ１の近傍領域は、第２金属Ｍ２であるＡｌと第３金属Ｍ３であるＺｎとの固溶体Ｓ１ｂで構成される。 In addition, the joining interface L1 between the joining portion C1a formed by the partition wall portion 105 and the first conductive member W1 before joining, or a region in the vicinity of the joining interface L1 is Al and the third metal M2. It is composed of a solid solution S1b with Zn which is M3.
接合界面Ｌ１の近傍領域における固溶体のＡｌとＺｎとの濃度分布は、図６のグラフのようになる。 The concentration distribution of Al and Zn in the solid solution in the region near the bonding interface L1 is as shown in the graph of FIG.
ここで、図６は、接合界面Ｌ１の近傍領域における固溶体のＡｌとＺｎとの濃度分布を示すグラフである。 Here, FIG. 6 is a graph showing the concentration distribution of Al and Zn in the solid solution in the region near the bonding interface L1.
このグラフにおいて、横軸は接合界面Ｌ１を基準点「０」とした距離（μｍ）、縦軸はＡｌとＺｎの濃度を示す。 In this graph, the horizontal axis represents the distance (μm) with the bonding interface L1 as the reference point “0”, and the vertical axis represents the concentrations of Al and Zn.
このように、図５に模式的に示すように、接合界面Ｌ１またはこの接合界面Ｌ１の近傍領域では、接合界面Ｌ１から離れるに従ってＺｎの濃度が下がり、逆に接合界面Ｌ１から離れるに従ってＡｌの濃度が上がるグラデーション状の固溶体Ｓ１ａ、Ｓ１ｂが形成される。 Thus, as schematically shown in FIG. 5, in the bonding interface L1 or in the region near the bonding interface L1, the concentration of Zn decreases as the distance from the bonding interface L1 increases, and conversely, the concentration of Al increases as the distance from the bonding interface L1 increases. Gradient-like solid solutions S1a and S1b are formed.
以上述べたように、本実施の形態に係る導電部材の接合体１Ａによれば、中間部材は、第１の導電部材Ｗ１と第２の導電部材Ｗ２の少なくとも一方の外周径に合わせた窪み状の係合部１０１、１０５を有するキャップ部材Ｃ１で構成されているので、第１の導電部材Ｗ１と第２の導電部材Ｗ２の外周径が異なる場合であってもキャップ部材Ｃ１の係合部１０１、１０２に確実に係合させることができ、固溶体を介した接合をより確実に行うことができる。 As described above, according to the joined body 1A of the conductive members according to the present embodiment, the intermediate member has a hollow shape that matches the outer diameter of at least one of the first conductive member W1 and the second conductive member W2. Since the cap member C1 includes the engaging portions 101 and 105, the engaging portion 101 of the cap member C1 is used even when the outer diameters of the first conductive member W1 and the second conductive member W2 are different. , 102 can be securely engaged, and joining via a solid solution can be performed more reliably.
また、キャップ部材Ｃ１は、両面に、窪み状の係合部１０１、１０２を有するので、第１の導電部材Ｗ１と第２の導電部材Ｗ２を確実に係合して仮固定することができる。 Further, since the cap member C1 has the recessed engaging portions 101 and 102 on both sides, the first conductive member W1 and the second conductive member W2 can be securely engaged and temporarily fixed.
また、窪み状の係合部１０１、１０２は、係合対象としての第１の導電部材Ｗ１および第２の導電部材Ｗ２の軸心を合わせる位置決め部を兼ねている。これにより、係合部１０１、１０２に係合対象としての第１の導電部材Ｗ１および第２の導電部材Ｗ２を係合することで、軸心を合わせることができ、接合をより良好に行うことができる。 Further, the recessed engaging portions 101 and 102 also serve as a positioning portion that aligns the axes of the first conductive member W1 and the second conductive member W2 that are the engagement targets. Thus, by engaging the first conductive member W1 and the second conductive member W2, which are the objects to be engaged, with the engaging portions 101 and 102, the axes can be aligned and the joining can be performed better. You can
また、係合部１０１、１０２は、固溶体による接合を行う前に、係合対象としての第１の導電部材Ｗ１および第２の導電部材Ｗ２の端部に仮固定し得る深さに設定されている。 Further, the engaging portions 101 and 102 are set to a depth such that they can be temporarily fixed to the end portions of the first conductive member W1 and the second conductive member W2 as the engagement targets before the joining by the solid solution. There is.
これにより、係合部１０１、１０２は、固溶体による接合を行う前に第１の導電部材Ｗ１および第２の導電部材Ｗ２の端部を仮固定できるので、安定した状態で接合作業を行うことができる。 Accordingly, the engaging portions 101 and 102 can temporarily fix the end portions of the first conductive member W1 and the second conductive member W2 before performing the joining by the solid solution, so that the joining work can be performed in a stable state. it can.
また、固溶体による接合を行う際に、係合対象としての第１の導電部材Ｗ１と第２の導電部材Ｗ２との間の隔壁部を構成する第３金属Ｍ３は、全量が溶融して消費され得る厚さに設定することができる。この場合には、中間部材（キャップ部材Ｃ１）の無駄を排除してコストの低廉化を図ることができ、また良好な外観を維持することのできる導電部材の接合体Ａ１を得ることができる。 Further, when the solid solution is joined, the entire amount of the third metal M3 forming the partition wall between the first conductive member W1 and the second conductive member W2 as the engagement target is melted and consumed. It can be set to the thickness to be obtained. In this case, the waste of the intermediate member (cap member C1) can be eliminated to reduce the cost, and the joined body A1 of the conductive members that can maintain a good appearance can be obtained.
また、図３等に示す接合体Ａ１は、第１の導電部材Ｗ１を複数の芯線Ｗ１ａを束ねた撚り電線としている。なお、第２の導電部材Ｗ２も同様の構成の撚り電線としてもよい。 Further, in the joined body A1 shown in FIG. 3 and the like, the first conductive member W1 is a stranded electric wire in which a plurality of core wires W1a are bundled. The second conductive member W2 may also be a stranded wire having the same structure.
これにより、外周径の異なる撚り電線同士あるいは外周径の異なる撚り電線と他種の電線（単芯線等）との接合を確実に行うことができる。 As a result, it is possible to reliably join the twisted wires having different outer diameters or the twisted wires having different outer diameters to each other and other kinds of wires (single core wire or the like).
［第２の実施の形態］
次に、図７および図８を参照して、本発明の第２の実施の形態に係る導電部材の接合体１Ｂについて説明する。
[Second Embodiment]
Next, with reference to FIGS. 7 and 8, a joined body 1B of conductive members according to a second embodiment of the present invention will be described.
ここで、図７は、第２の実施の形態に係る導電部材の接合体１Ｂに用いる中間部材等の要部を示す一部拡大断面図、図８は、第２の実施の形態に係る導電部材の接合体１Ｂの接合状態を示す模式的断面図である。 Here, FIG. 7 is a partially enlarged cross-sectional view showing a main part such as an intermediate member used in the joined body 1B of the conductive members according to the second embodiment, and FIG. 8 is a conductive view according to the second embodiment. It is a typical sectional view showing the joined state of joined body 1B of a member.
図７に示すように、第２の実施の形態に係る導電部材の接合体１Ｂに用いる中間部材としてのキャップ部材Ｃ２は、撚り電線で構成される第１の導電部材Ｗ１との対向面に、１または２以上の突起部１１１が形成されている。 As shown in FIG. 7, a cap member C2 as an intermediate member used in the joined body 1B of the conductive members according to the second embodiment has a surface facing the first conductive member W1 formed of a stranded wire, One or more protrusions 111 are formed.
これにより、図８に示すように、接合界面Ｌ１または当該接合界面Ｌ２の近傍領域に、比較的深い深度で固溶体Ｓ１ａを形成することができる。 As a result, as shown in FIG. 8, the solid solution S1a can be formed at a relatively deep depth in the bonding interface L1 or a region near the bonding interface L2.
即ち、第１の導電部材Ｗ１の芯線Ｗ１ａの隙間１１５にもＺｎまたは固溶体が侵入して、各芯線Ｗ１ａ間を強固に接合することができる。 That is, Zn or the solid solution can also penetrate into the gap 115 between the core wires W1a of the first conductive member W1 to firmly bond the core wires W1a.
なお、第２の導電部材Ｗ２を撚り電線で構成する場合には、第２の導電部材Ｗ２の対向面にも突起部１１１を形成してもよい。 When the second conductive member W2 is formed of a stranded wire, the protrusion 111 may be formed on the opposing surface of the second conductive member W2.
また、第１の実施の形態と同様に、キャップ部材Ｃ２の係合部の径を変えることにより、外周径の異なる撚り電線同士あるいは外周径の異なる撚り電線と他種の電線（単芯線等）との接合をより強固に行うことが可能となる。 Further, similarly to the first embodiment, by changing the diameter of the engaging portion of the cap member C2, twisted wires having different outer diameters or twisted wires having different outer diameters and other kinds of wires (single core wire, etc.) It is possible to more firmly join the and.
［第３の実施の形態］
図９〜図１２を参照して、本発明の第３の実施の形態に係る導電部材の接合体１Ｃについて説明する。
[Third Embodiment]
With reference to FIGS. 9 to 12, a joined body 1C of conductive members according to a third embodiment of the present invention will be described.
ここで、図９（ａ）は、本発明の第３の実施の形態に係る導電部材の接合体１Ｃに用いる中間部材（キャップ部材Ｃ３）を示す側面図、図９（ｂ）はその正面図、図１０および図１１は、導電部材の接合体１Ｃの接合工程を示す工程図、図１２は、導電部材の接合体１Ｃの接合状態を示す画像図である。 Here, FIG. 9A is a side view showing an intermediate member (cap member C3) used in the joined body 1C of the conductive members according to the third embodiment of the present invention, and FIG. 9B is a front view thereof. 10 and 11 are process diagrams showing a joining process of the joined body 1C of the conductive member, and FIG. 12 is an image diagram showing a joined state of the joined body 1C of the conductive member.
（中間部材について）
まず、図９を参照して、第３の実施の形態に係る導電部材の接合体１Ｃに用いる中間部材について説明する。
(About intermediate member)
First, with reference to FIG. 9, an intermediate member used in the joined body 1C of the conductive members according to the third embodiment will be described.
中間部材は、前述の第１金属Ｍ１で構成される第１の導電部材Ｗ１と第２金属Ｍ２で構成される第２の導電部材Ｗ２との端面同士を接合する部材であり、第３金属Ｍ３で構成されている。 The intermediate member is a member that joins the end faces of the first conductive member W1 composed of the first metal M1 and the second conductive member W2 composed of the second metal M2, and the third metal M3. It is composed of.
この中間部材は、第１の導電部材Ｗ１側にのみ、この第１の導電部材Ｗ１の外周径（Ｄ３、例えば５．７ｍｍ程度）に合わせた窪み状の係合部１１０を有するキャップ部材Ｃ３で構成されている。 This intermediate member is a cap member C3 having a recessed engaging portion 110 matched to the outer peripheral diameter (D3, for example, about 5.7 mm) of the first conductive member W1 only on the first conductive member W1 side. It is configured.
なお、係合部１１０は所定深さを有し、所定厚さ（例えば、０．４ｍｍ程度）の壁部１２０が形成されている。 The engaging portion 110 has a predetermined depth, and a wall portion 120 having a predetermined thickness (for example, about 0.4 mm) is formed.
また、キャップ部材Ｃ３の係合部１１０は、固溶体による接合を行う前に、係合対象としての第１の導電部材Ｗ１の端部に仮固定し得る深さに設定されている。 In addition, the engaging portion 110 of the cap member C3 is set to a depth such that the engaging portion 110 can be temporarily fixed to the end portion of the first conductive member W1 to be engaged before the joining by the solid solution.
また、キャップ部材Ｃ３の壁部１２０の厚さは、キャップ部材Ｃ３を構成する第３金属Ｍ３の全量が溶融して消費され得る厚さに設定されることが望ましい。 Further, the thickness of the wall portion 120 of the cap member C3 is preferably set to a thickness at which the entire amount of the third metal M3 forming the cap member C3 can be melted and consumed.
これにより、中間部材（キャップ部材Ｃ３）の無駄を排除してコストの低廉化を図ることができる。また、接合後のバリ等の発生を低減して、接合体の良好な外観を維持することができる。 As a result, waste of the intermediate member (cap member C3) can be eliminated and the cost can be reduced. Further, it is possible to reduce the occurrence of burrs and the like after joining and maintain a good appearance of the joined body.
また、第１の実施の形態等と同様に、第３金属Ｍ３は、第１金属Ｍ１および第２金属Ｍ２より融点が低い低融点金属で構成される。より具体的には、第１金属Ｍ１および第２金属はＭ２は、Ａｌ（アルミニウム）で構成され、第３金属Ｍ３は、Ｚｎ（亜鉛）で構成することができる。 Further, similarly to the first embodiment and the like, the third metal M3 is composed of a low melting point metal having a lower melting point than the first metal M1 and the second metal M2. More specifically, the first metal M1 and the second metal M2 can be made of Al (aluminum), and the third metal M3 can be made of Zn (zinc).
これにより、比較的容易に導電部材の接合体を得ることができる。 Thereby, the joined body of the conductive members can be obtained relatively easily.
（接合工程等について）
次に、図１０および図１１を参照して、導電部材の接合体１Ｃの接合工程等について簡単に説明する。
(About joining process)
Next, with reference to FIGS. 10 and 11, a process of joining the joined body 1C of the conductive members and the like will be briefly described.
接合工程では、まず、第１金属Ｍ１で構成される第１の導電部材Ｗ１および第２金属Ｍ２で構成される第２の導電部材Ｗ２を準備する。 In the joining step, first, the first conductive member W1 made of the first metal M1 and the second conductive member W2 made of the second metal M2 are prepared.
図１０に示す例では、第１の導電部材Ｗ１は、複数のアルミニウムの芯線を束ねた撚り電線（径はＤ３程度）としている。 In the example shown in FIG. 10, the first conductive member W1 is a stranded electric wire (diameter is about D3) in which a plurality of aluminum core wires are bundled.
また、第２の導電部材Ｗ２は、アルミニウムの単芯線（径は、例えば、第２実施の形態で示したＤ２程度）としている。 Further, the second conductive member W2 is a single-core wire of aluminum (diameter is, for example, about D2 shown in the second embodiment).
そして、第１の導電部材Ｗ１の端部をＢ１方向に押圧して、第３金属Ｍ３で構成される中間部材（キャップ部材Ｃ３）が備える窪み状の係合部１１０に係合させる。 Then, the end portion of the first conductive member W1 is pressed in the B1 direction to be engaged with the recessed engaging portion 110 included in the intermediate member (cap member C3) made of the third metal M3.
このように、撚り電線で構成される第１の導電部材Ｗ１側の端部にキャップ部材Ｃ１を係合させる工程を、他方の第２の導電部材Ｗ２にキャップ部材Ｃ３に当接させる工程より先に行うことにより、撚り電線がばらける事態を回避することができ、確実に接合することが可能となる。 In this way, the step of engaging the cap member C1 with the end portion on the first conductive member W1 side composed of the stranded wire precedes the step of bringing the other second conductive member W2 into contact with the cap member C3. By doing so, it is possible to avoid the situation where the twisted electric wires are scattered, and it is possible to reliably join them.
次いで、第２の導電部材Ｗ２の端部をＢ２方向に押圧して、キャップ部材Ｃ３の表面１２０ａに当接させる。 Next, the end portion of the second conductive member W2 is pressed in the B2 direction and brought into contact with the surface 120a of the cap member C3.
これにより、図１１に示すように、キャップ部材Ｃ３を介して第１の導電部材Ｗ１が仮固定された状態で、第２の導電部材Ｗ２が当接された状態となる。 As a result, as shown in FIG. 11, the second conductive member W2 is in contact with the first conductive member W1 being temporarily fixed via the cap member C3.
そして、この状態で仮固定部を含む領域を所定温度まで加熱する。 Then, in this state, the region including the temporary fixing portion is heated to a predetermined temperature.
加熱方法は、特には限定されないが、例えば、第１の導電部材Ｗ１と第２の導電部材Ｗ２との間に所定の電力を供給して抵抗発熱により加熱したり、或いは高周波誘導加熱装置等により加熱するようにできる。 The heating method is not particularly limited, but for example, a predetermined electric power is supplied between the first conductive member W1 and the second conductive member W2 to heat by resistance heating, or by a high frequency induction heating device or the like. Can be heated.
なお、加熱時に、Ｂ１、Ｂ２方向に押圧するようにしてもよい。 In addition, you may make it press in B1 and B2 direction at the time of heating.
これにより、図１２の画像図に示すように、第１の導電部材Ｗ１と第２の導電部材Ｗ２とが固溶体により接合される。 As a result, as shown in the image diagram of FIG. 12, the first conductive member W1 and the second conductive member W2 are joined by the solid solution.
なお、導電部材の接合体１Ｃの接合原理等は、第１の実施の形態に係る導電部材の接合体１Ａと同様である。 The bonding principle and the like of the conductive member bonded body 1C are similar to those of the conductive member bonded body 1A according to the first embodiment.
以上述べたように、本実施の形態に係る導電部材の接合体１Ｃによれば、中間部材は、第１の導電部材Ｗ１の外周径に合わせた窪み状の係合部１１０を有するキャップ部材Ｃ３で構成されているので、第１の導電部材Ｗ１と第２の導電部材Ｗ２の外周径が異なる場合であってもキャップ部材Ｃ３を介して確実に係合させることができ、固溶体を介した接合をより確実に行うことができる。 As described above, according to the conductive member joined body 1C according to the present embodiment, the intermediate member has the cap member C3 having the recessed engaging portion 110 that matches the outer peripheral diameter of the first conductive member W1. Since the first conductive member W1 and the second conductive member W2 have different outer diameters, the first conductive member W1 and the second conductive member W2 can be reliably engaged with each other through the cap member C3, and the solid solution is used for joining. Can be performed more reliably.
導電部材の接合体１Ｃはその他、第１の実施の形態に係る導電部材の接合体１Ａと同様の効果を奏することができる。 In addition, the bonded body 1C of the conductive member can exhibit the same effect as the bonded body 1A of the conductive member according to the first embodiment.
また、第２の実施の形態に係る導電部材の接合体１Ｂと同様に、キャップ部材Ｃ３の第１の導電部材（撚り電線）Ｗ１と対向する面に１または２以上の突起部１１１を形成するようにしてもよい。その場合には、より強固に接合することができる。 Further, similarly to the joined body 1B of the conductive members according to the second embodiment, one or more protrusions 111 are formed on the surface of the cap member C3 facing the first conductive member (stranded wire) W1. You may do it. In that case, it is possible to bond more firmly.
（その他）
上述した実施の形態では、第１の導電部材Ｍ１を構成する第１金属および第２の導電部材Ｍ２を構成する第２金属として、Ａｌ（アルミニウム）を用いる場合を示したが、これに限らず、第１金属および第２金属の少なくとも一方をＣｕ（銅）等とすることができる。
(Other)
In the above-described embodiment, the case where Al (aluminum) is used as the first metal forming the first conductive member M1 and the second metal forming the second conductive member M2 has been described, but the present invention is not limited to this. At least one of the first metal and the second metal may be Cu (copper) or the like.
１Ａ〜１Ｃ…導電部材の接合体
３０…コネクタ端子
１０１、１０２、１１０…係合部
１０５…隔壁部
１１１…突起部
１２０…壁部
Ｃ１〜Ｃ３…中間部材（キャップ部材）
Ｌ１…接合界面
Ｍ１…第１金属
Ｍ２…第２金属
Ｍ３…第３金属
Ｓ１ａ、Ｓ１ｂ…固溶体
Ｗ１…第１の導電部材（撚り電線）
Ｗ２…第２の導電部材
Ｗ１ａ…芯線
１１１…突起部
１１５…隙間
1A to 1C... Joined body of conductive members 30... Connector terminals 101, 102, 110... Engaging portion 105... Partition portion 111... Projection portion 120... Wall portion C1 to C3... Intermediate member (cap member)
L1... Bonding interface M1... First metal M2... Second metal M3... Third metal S1a, S1b... Solid solution W1... First conductive member (stranded wire)
W2... Second conductive member W1a... Core wire 111... Projection portion 115... Gap
Claims (8)
第２金属で構成される第２導電部材と、
前記第１導電部材と前記第２導電部材との端面同士を接合する第３金属で構成される中間部材と、
を備え、
前記中間部材は、前記第１導電部材と前記第２導電部材の少なくとも一方の外周径に合わせた窪み状の係合部を有するキャップ部材で構成され、
前記中間部材と前記第１導電部材との接合界面または当該接合界面の近傍領域は、前記第１金属と前記第３金属との固溶体である第１固溶体で構成され、
前記中間部材と前記第２導電部材との接合界面または当該接合界面の近傍領域は、前記第２金属と前記第３金属との固溶体である第２固溶体で構成され、
前記中間部材を構成するキャップ部材は、当該キャップ部材の片面のみに、前記窪み状の係合部を有することを特徴とする導電部材の接合体。 A first conductive member made of a first metal;
A second conductive member made of a second metal;
An intermediate member made of a third metal that joins end faces of the first conductive member and the second conductive member,
Equipped with
The intermediate member is composed of a cap member having a recessed engaging portion that matches the outer diameter of at least one of the first conductive member and the second conductive member,
A joint interface between the intermediate member and the first conductive member or a region near the joint interface is formed of a first solid solution which is a solid solution of the first metal and the third metal,
A joint interface between the intermediate member and the second conductive member or a region near the joint interface is formed of a second solid solution which is a solid solution of the second metal and the third metal,
The cap member constituting the intermediate member has the recessed engagement portion on only one surface of the cap member, and is a joined body of conductive members.
前記隔壁部を構成する前記第３金属は、全量が前記第１金属または前記第２金属に固溶し得る厚さに設定されることを特徴とする請求項１から請求項３の何れか１項に記載の導電部材の接合体。 The intermediate member includes a partition wall portion that is disposed between the first conductive member and the second conductive member as an engagement target when performing the joining by the first solid solution and the second solid solution,
The third metal constituting the partition wall is set to a thickness such that the entire amount of the third metal can form a solid solution with the first metal or the second metal. A joined body of the conductive members according to item.
前記第３金属は、Ｚｎで構成され、
前記第１固溶体と前記第２固溶体のそれぞれは、ＡｌとＺｎとの固溶体であることを特徴とする請求項１から請求項５の何れか１項に記載の導電部材の接合体。 The first metal and the second metal are made of Al,
The third metal is composed of Zn,
The joined body of conductive members according to any one of claims 1 to 5, wherein each of the first solid solution and the second solid solution is a solid solution of Al and Zn.
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