Nothing Special   »   [go: up one dir, main page]

JP2018190617A - Electric wire with terminal - Google Patents

Electric wire with terminal Download PDF

Info

Publication number
JP2018190617A
JP2018190617A JP2017092814A JP2017092814A JP2018190617A JP 2018190617 A JP2018190617 A JP 2018190617A JP 2017092814 A JP2017092814 A JP 2017092814A JP 2017092814 A JP2017092814 A JP 2017092814A JP 2018190617 A JP2018190617 A JP 2018190617A
Authority
JP
Japan
Prior art keywords
terminal
electric wire
conductor
metal
contact portion
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
Application number
JP2017092814A
Other languages
Japanese (ja)
Inventor
江尻　孝一郎
Koichiro Ejiri
孝一郎 江尻
一暢 米山
Kazunobu Yoneyama
一暢 米山
晴彦 近藤
Haruhiko Kondo
晴彦 近藤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SMK Corp
Original Assignee
SMK Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by SMK Corp filed Critical SMK Corp
Priority to JP2017092814A priority Critical patent/JP2018190617A/en
Priority to CN201810084895.XA priority patent/CN108879131A/en
Publication of JP2018190617A publication Critical patent/JP2018190617A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • 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
    • H01R4/58—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 characterised by the form or material of the contacting members
    • H01R4/62—Connections between conductors of different materials; Connections between or with aluminium or steel-core aluminium conductors
    • H01R4/625—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
    • H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
    • H01R11/11—End pieces or tapping pieces for wires, supported by the wire and for facilitating electrical connection to some other wire, terminal or conductive member

Landscapes

  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
  • Insulated Conductors (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide an electric wire with a terminal, in which electrical conductivity between an electric conductor part of the electric wire and the terminal is secured and furthermore galvanic corrosion can be surely prevented.SOLUTION: The electric wire with the terminal comprises: an electric wire 10 in which an electric conductor part 12 made of a material composed mainly of a first metal is covered with an insulation material 11; and a terminal 20 which is made of a material composed mainly of a second metal different from the first metal and connected to the electric conductor part 12 exposed at one end of the electric wire 10. The electric wire further comprises an alloy layer 15 which includes the first metal and the second metal and is formed over the electric conductor part 12 and the terminal 20 in the entire outer peripheral edge of a contact part 16 between the electric conductor part 12 and the terminal 20.SELECTED DRAWING: Figure 1

Description

本発明は、電線の端部に端子が取付けられた端子付き電線に関する。   The present invention relates to an electric wire with a terminal in which a terminal is attached to an end portion of the electric wire.

従来、電線の端部に端子が取付けられた端子付き電線では、電線を構成する芯線と端子とに異なる種類の金属が使用される場合がある。芯線と端子とに異種金属が用いられた場合には、芯線と端子とが接触する箇所に水分が付着すると腐食が発生しやすくなる。   Conventionally, in a terminal-attached electric wire in which a terminal is attached to the end of the electric wire, different types of metals may be used for the core wire and the terminal constituting the electric wire. When different types of metals are used for the core wire and the terminal, corrosion tends to occur when moisture adheres to a portion where the core wire and the terminal are in contact with each other.

例えば、アルミニウム電線に銅製又は銅合金製の端子を圧着して取付けている場合、その接触箇所に水分が付着すると、イオン化傾向の高い方のアルミニウム電線に腐食が発生しやすい。   For example, when a copper or copper alloy terminal is attached by crimping to an aluminum electric wire, if water adheres to the contact location, corrosion tends to occur in the aluminum electric wire having a higher ionization tendency.

このため、例えばアルミニウム電線に銅製の端子を圧着する等、異種金属同士を接続する場合には、その接続箇所にて異種金属接触腐食が発生することを防止するために、接続箇所に種々の防水シールド処理が施されている（例えば、特許文献１参照）。   For this reason, when different metals are connected to each other, for example, by crimping a copper terminal to an aluminum electric wire, various types of waterproofing are applied to the connection locations in order to prevent the occurrence of different metal contact corrosion at the connection locations. The shield process is performed (for example, refer patent document 1).

特許文献１には、被覆電線に端子が圧着された端子付き電線が開示されており、被覆電線の芯線と端子とが異種金属で構成されている。この芯線と端子との接続部に防食剤が塗布されており、接続部において異種金属接触腐食が発生するのを防止している。   Patent Document 1 discloses a terminal-attached electric wire in which a terminal is crimped to a covered electric wire, and the core wire and the terminal of the covered electric wire are made of different metals. An anticorrosive agent is applied to the connecting portion between the core wire and the terminal to prevent the contact corrosion of different metals at the connecting portion.

特開２０１６−２２５１１２号公報JP 2016-225112 A

しかしながら、特許文献１に記載の端子付き電線にあっては、接続部の外側に防食剤を塗布して盛り上がっているため、接続部のサイズが大きくなるという問題があった。また、防食剤による防水シールドでは、防水性能の経年劣化や応力緩和により、防水シールドが破れて芯線と端子との接続部に水が浸入する懸念もあった。さらにまた、端子の圧着取付け作業に加え、防食剤を塗布する工程も必要とし、また、防食剤を塗布して固化するまで時間が掛かり、作業時間が長くなるという問題もあった。   However, in the electric wire with a terminal described in Patent Document 1, there is a problem that the size of the connecting portion increases because the anticorrosive agent is applied to the outside of the connecting portion and rises. Further, in the case of a waterproof shield using an anticorrosive agent, there is a concern that the waterproof shield may be broken due to aging deterioration of the waterproof performance or stress relaxation, and water may enter the connecting portion between the core wire and the terminal. Furthermore, in addition to the terminal crimping and attaching operation, a step of applying an anticorrosive agent is required, and it takes time until the anticorrosive agent is applied and solidified, resulting in a long working time.

本発明は、上述のような課題を解決するためになされたものであり、電線の導体部と端子との導電性を確保しつつ、異種金属接触腐食を確実に防止することができる端子付き電線を提供することを目的とする。   The present invention has been made to solve the above-described problems, and has a terminal-attached electric wire that can reliably prevent the contact corrosion of different metals while ensuring the conductivity between the conductor portion of the electric wire and the terminal. The purpose is to provide.

本発明に係る端子付き電線は、上記目的を達成するため、第１の金属を主成分とする材料からなる導体部が絶縁材で被覆された電線と、前記第１の金属とは別の第２の金属を主成分とする材料からなり、前記電線の一端部にて露出した前記導体部に接続された端子と、を備え、前記導体部と前記端子との接触部の全外周縁に前記導体部と前記端子とに跨って前記第１の金属と前記第２の金属とを含む合金層が形成されていることを特徴とする。   In order to achieve the above object, the terminal-attached electric wire according to the present invention includes an electric wire in which a conductor portion made of a material containing a first metal as a main component is covered with an insulating material, and an electric wire different from the first metal. And a terminal connected to the conductor exposed at one end of the electric wire, and the outer peripheral edge of the contact portion between the conductor and the terminal. An alloy layer including the first metal and the second metal is formed across the conductor portion and the terminal.

上述のように、本発明の端子付き電線は、導体部と端子との接触部の全外周縁に導体部と端子とに跨って第１の金属と第２の金属とを含む合金層が形成されているので、第１の金属と第２の金属とが直接接触しかつ外部に露出している部分が存在しない。このため、異種金属の接触部に水分が付着することがなく、合金層により電線の導体部と端子との導電性を確保しつつ、異種金属接触腐食を確実に防止することができる。   As described above, in the electric wire with terminal of the present invention, an alloy layer including the first metal and the second metal is formed across the conductor portion and the terminal on the entire outer periphery of the contact portion between the conductor portion and the terminal. Therefore, there is no portion where the first metal and the second metal are in direct contact and exposed to the outside. For this reason, moisture does not adhere to the contact portion of the dissimilar metal, and the dissimilar metal contact corrosion can be surely prevented while ensuring the conductivity between the conductor portion of the electric wire and the terminal by the alloy layer.

また、本発明の端子付き電線は、従来のように導体部と端子との接続部に防食剤が塗布された構成ではないので、接続部のサイズが制限を越えて大きくなることもない。   Moreover, since the electric wire with a terminal of this invention is not the structure by which the anticorrosive agent was apply | coated to the connection part of a conductor part and a terminal like the past, the size of a connection part does not become large exceeding a restriction | limiting.

加えて、本発明の端子付き電線は、溶接等により導体部と端子との接触部の全外周縁に合金層が形成された構成であるので、従来のように圧着工程、防食剤の塗布工程などが不要となり、工程数を少なくでき低コストで製造可能である。しかも、本発明の導体部と端子との接触部の全外周縁に形成された合金層は、従来の防食剤のように防水シールドの経年劣化や応力緩和が起こりにくい。   In addition, since the electric wire with terminal of the present invention has a configuration in which an alloy layer is formed on the entire outer periphery of the contact portion between the conductor portion and the terminal by welding or the like, the crimping step and the anticorrosive coating step as in the past The number of processes can be reduced and manufacturing can be performed at low cost. In addition, the alloy layer formed on the entire outer peripheral edge of the contact portion between the conductor portion and the terminal of the present invention is unlikely to undergo aging deterioration and stress relaxation of the waterproof shield unlike conventional anticorrosive agents.

また、本発明の端子付き電線では、前記導体部は複数の芯線を含み、前記電線の一端部側に前記複数の芯線の端部が溶融接合した溶融接合部を有し、前記溶融接合部が前記端子に接続された構成であってもよい。   Moreover, in the electric wire with a terminal of the present invention, the conductor portion includes a plurality of core wires, the one end portion side of the electric wire has a melt bonded portion in which ends of the plurality of core wires are melt bonded, and the melt bonded portion is The structure connected to the said terminal may be sufficient.

この構成により、本発明の端子付き電線は、溶融接合部において複数の芯線が一体となっているので、芯線がばらけて他の電線等と短絡することがない。また、溶融接合部は、複数の芯線を加熱・加圧して形成することができ、その際に相手方の端子に適合するように所望の形状（板状、円柱状等）に容易に成形することができる。   With this configuration, the terminal-attached electric wire of the present invention has a plurality of core wires integrated in the melt-bonded portion, so that the core wires are not scattered and short-circuited with other electric wires or the like. In addition, the melt-bonded portion can be formed by heating and pressing a plurality of core wires, and at that time, it can be easily formed into a desired shape (plate shape, columnar shape, etc.) so as to be compatible with the counterpart terminal. Can do.

また、本発明の端子付き電線では、前記導体部は単芯線であり、前記単芯線は前記端子に接続された接続端部を有する構成であってもよい。   In the electric wire with terminal of the present invention, the conductor portion may be a single core wire, and the single core wire may have a connection end connected to the terminal.

この構成により、本発明の端子付き電線は、導体部が単芯線の場合に単芯線の接続端部と端子との接触部において異種金属接触腐食を確実に防止することができる。   With this configuration, the terminal-attached electric wire of the present invention can reliably prevent dissimilar metal contact corrosion at the contact portion between the connecting end portion of the single core wire and the terminal when the conductor portion is a single core wire.

また、本発明の端子付き電線では、前記導体部における前記接触部側の端面が、前記端子における前記接触部側の端面と略同一形状を有した構成であってもよい。   Moreover, in the electric wire with a terminal of the present invention, the end surface on the contact portion side of the conductor portion may have substantially the same shape as the end surface on the contact portion side of the terminal.

この構成により、本発明の端子付き電線は、導体部と端子とが段差なく接続されるので、例えば小サイズ・狭ピッチのコネクタに端子付き電線の端子を挿入する構成の場合にも適用することができる。   With this configuration, the electric wire with terminal of the present invention is connected to the conductor portion and the terminal without a step, so that it can be applied to the case where the terminal of the electric wire with terminal is inserted into a connector having a small size and a narrow pitch, for example. Can do.

また、本発明の端子付き電線では、前記導体部における前記接触部側の端面が、前記端子における前記接触部側の端面と異なる大きさを有した構成であってもよい。   Moreover, in the electric wire with a terminal of the present invention, the end surface on the contact portion side in the conductor portion may have a size different from the end surface on the contact portion side in the terminal.

この構成により、本発明の端子付き電線は、例えば、電線の導体部の種々の径に対して同一の端子を接続することができる。電線に圧着端子を加締めて取付ける場合には、適合する電線サイズに限界があるが、本発明の構成ではこのような限界はない。   By this structure, the electric wire with a terminal of this invention can connect the same terminal with respect to the various diameters of the conductor part of an electric wire, for example. When a crimp terminal is attached by crimping to an electric wire, there is a limit to the size of the electric wire to be fitted, but there is no such limit in the configuration of the present invention.

また、本発明の端子付き電線では、前記導体部の前記接触部側の端面に形成された凸部または前記導体部の端部が、前記端子の前記接触部側の端面に形成された凹部に嵌合しているか、あるいは前記端子の前記接触部側の端面に形成された凸部または前記端子の端部が、前記導体部の前記接触部側の端面に形成された凹部に嵌合した構成であってもよい。   Moreover, in the electric wire with a terminal of the present invention, the convex portion formed on the end surface on the contact portion side of the conductor portion or the end portion of the conductor portion is formed in the concave portion formed on the end surface on the contact portion side of the terminal. A configuration in which the convex portion formed on the end surface on the contact portion side of the terminal or the end portion of the terminal is fitted in the concave portion formed on the end surface on the contact portion side of the conductor portion. It may be.

この構成により、本発明の端子付き電線は、導体部と端子とを溶接等により接続する際に、端子側または導体部側の凹部が、接続する相手方に設けられた凸部等をガイドすることで、容易かつ正確に位置合わせすることができる。また、このように導体部と端子との接触部における凸部と凹部との嵌合により、電線の導体部と端子との接続強度を高めることができる。   With this configuration, when the conductor portion and the terminal are connected by welding or the like, the terminal-side electric wire of the present invention guides the convex portion or the like provided on the counterpart side to be connected by the concave portion on the terminal side or the conductor portion side. Thus, the alignment can be performed easily and accurately. In addition, the connection strength between the conductor portion of the electric wire and the terminal can be increased by fitting the convex portion and the concave portion in the contact portion between the conductor portion and the terminal.

また、本発明の端子付き電線では、前記合金層は前記導体部と前記端子との前記接触部の全域に形成されていてもよい。   Moreover, in the electric wire with a terminal of the present invention, the alloy layer may be formed over the entire contact portion between the conductor portion and the terminal.

この構成により、本発明の端子付き電線は、合金層が接触部の全外周縁だけでなく接触部の全域に形成されているので、異種金属の接触部での腐食を確実に防止するとともに、電線の導体部と端子との接続強度を高めることができる。   With this configuration, the electric wire with a terminal of the present invention has the alloy layer formed not only on the entire outer peripheral edge of the contact portion but also on the entire contact portion, thus reliably preventing corrosion at the contact portion of dissimilar metals, The connection strength between the conductor portion of the electric wire and the terminal can be increased.

また、本発明の端子付き電線では、前記第１の金属はアルミニウムまたはその合金であり、前記第２の金属は銅またはその合金であってもよい。   In the electric wire with a terminal of the present invention, the first metal may be aluminum or an alloy thereof, and the second metal may be copper or an alloy thereof.

この構成により、本発明の端子付き電線は、電線の導体部に軽量のアルミニウム線を用い、端子に電気伝導率の高い銅を用いることで、導体部と端子との導電性を確保しつつ、電線の軽量化を図ることができる。   With this configuration, the electric wire with terminal of the present invention uses a lightweight aluminum wire for the conductor portion of the electric wire, and uses copper with high electrical conductivity for the terminal, while ensuring the conductivity between the conductor portion and the terminal, The weight of the electric wire can be reduced.

本発明によれば、電線の導体部と端子との導電性を確保しつつ、異種金属接触腐食を確実に防止することができる端子付き電線を提供することができる。   ADVANTAGE OF THE INVENTION According to this invention, the electric wire with a terminal which can prevent the dissimilar-metal contact corrosion reliably can be provided, ensuring the electroconductivity of the conductor part and terminal of an electric wire.

（ａ）は本発明の第１の実施の形態に係る端子付き電線の斜視図であり、（ｂ）は（ａ）のＡ−Ａ部分断面図である。(A) is a perspective view of the electric wire with a terminal concerning a 1st embodiment of the present invention, and (b) is an AA fragmentary sectional view of (a). 第１の実施の形態に係る端子付き電線の製造方法を示す説明図である。It is explanatory drawing which shows the manufacturing method of the electric wire with a terminal which concerns on 1st Embodiment. 本発明の第２の実施形態に係る端子付き電線の部分断面図である。It is a fragmentary sectional view of the electric wire with a terminal concerning a 2nd embodiment of the present invention. （ａ）は本発明の第３の実施の形態に係る端子付き電線の斜視図であり、（ｂ）は（ａ）のＢ−Ｂ部分断面図である。(A) is a perspective view of the electric wire with a terminal concerning a 3rd embodiment of the present invention, and (b) is a BB partial sectional view of (a). 本発明の第４の実施形態に係る端子付き電線の部分断面図である。It is a fragmentary sectional view of the electric wire with a terminal concerning a 4th embodiment of the present invention. 本発明の第５の実施形態に係る端子付き電線の部分断面図である。It is a fragmentary sectional view of the electric wire with a terminal concerning a 5th embodiment of the present invention. 本発明の第６の実施形態に係る端子付き電線の部分断面図である。It is a fragmentary sectional view of the electric wire with a terminal concerning a 6th embodiment of the present invention. 本発明の第７の実施形態に係る端子付き電線の部分断面図である。It is a fragmentary sectional view of the electric wire with a terminal concerning a 7th embodiment of the present invention. 本発明の第８の実施の形態に係る端子付き電線の製造方法を示す説明図である。It is explanatory drawing which shows the manufacturing method of the electric wire with a terminal which concerns on the 8th Embodiment of this invention.

以下、本発明の実施の形態に係る端子付き電線について、図面を参照して説明する。   Hereinafter, the electric wire with a terminal concerning an embodiment of the invention is explained with reference to drawings.

（第１の実施の形態）
本発明の第１の実施の形態に係る端子付き電線１は、図１（ａ）に示すように、電線１０に端子２０が取付けられたものであり、端子２０を介して電子機器、電子部品、他の電線等に電気的に接続されるものである。 (First embodiment)
The terminal-attached electric wire 1 according to the first embodiment of the present invention is one in which a terminal 20 is attached to an electric wire 10 as shown in FIG. It is electrically connected to other electric wires.

図１（ａ）に示すように、電線１０は、アルミニウム（第１の金属）を主成分とする材料からなる導体部１２が絶縁材１１で被覆されている。端子２０は、アルミニウム（第１の金属）とは別の銅（第２の金属）を主成分とする材料からなり、電線１０の一端部にて所定長さだけ絶縁材１１が皮剥きされて露出した導体部１２に接続されている。導体部１２は、複数の芯線１３を例えば撚り線の形態で含み、その先端部に後で説明する溶融接合部１４が形成されている。   As shown in FIG. 1A, the electric wire 10 has a conductor portion 12 made of a material mainly composed of aluminum (first metal) covered with an insulating material 11. The terminal 20 is made of a material mainly composed of copper (second metal) different from aluminum (first metal), and the insulating material 11 is peeled off by a predetermined length at one end of the electric wire 10. It is connected to the exposed conductor portion 12. The conductor portion 12 includes a plurality of core wires 13 in the form of, for example, a stranded wire, and a fusion bonding portion 14 to be described later is formed at the tip portion thereof.

具体的には、導体部１２は、アルミニウム製またはアルミニウム合金製であり、端子２０は、銅製または銅合金製である。導体部１２がアルミニウム合金からなるときは、主成分としてのアルミニウムの他に、例えば、鉄、マグネシウムなどが単独又は組合されて添加されていてもよい。また、端子２０が銅合金からなるときは、主成分としての銅の他に、例えば、ニッケル、ケイ素、亜鉛、錫などが単独又は組合されて添加されていてもよい。また、端子２０は、その表面の一部または全部に、例えば金や銀などでメッキが施されていてもよい。   Specifically, the conductor portion 12 is made of aluminum or an aluminum alloy, and the terminal 20 is made of copper or a copper alloy. When the conductor portion 12 is made of an aluminum alloy, for example, iron or magnesium may be added alone or in combination in addition to aluminum as a main component. When the terminal 20 is made of a copper alloy, for example, nickel, silicon, zinc, tin, or the like may be added alone or in combination in addition to copper as a main component. Further, the terminal 20 may be plated with a part or all of its surface, for example, with gold or silver.

本実施の形態では、導体部１２がアルミニウム（第１の金属）を主成分とする材料からなり、端子２０が銅（第２の金属）を主成分とする材料からなるが、異種金属の組合わせはこれに限定されない。要は、第１の金属と第２の金属が異なるものならばよく、例えば、第１の金属を銅とし、第２の金属をアルミニウムとしてもよい。   In the present embodiment, the conductor portion 12 is made of a material whose main component is aluminum (first metal), and the terminal 20 is made of a material whose main component is copper (second metal). The alignment is not limited to this. In short, it is sufficient that the first metal and the second metal are different. For example, the first metal may be copper and the second metal may be aluminum.

端子２０は、図１（ａ）に示すように、直方体状（板状）の中実のコンタクトであるが、端子２０の形状はこれに限定されるものではなく、接続対象に適合する任意の形状を採用でき、また中空構造であってもよい。また、端子２０は、コネクタ等に挿入したときの抜け止め用として、板ばねや突起部など有していてもよい。また、端子２０は、他機器の接続端子への取付け用に、貫通孔が形成されていてもよいし、先端がＹ型形状になっていてもよい。   As shown in FIG. 1A, the terminal 20 is a rectangular solid (plate-shaped) solid contact. However, the shape of the terminal 20 is not limited to this, and any terminal suitable for a connection target is used. A shape can be adopted, and a hollow structure may be used. Moreover, the terminal 20 may have a leaf | plate spring, a projection part, etc. as an object for retaining | extracting when inserting in a connector etc. Further, the terminal 20 may be formed with a through hole for attachment to a connection terminal of another device, or may have a Y-shaped tip.

図１（ａ）に示すように、電線１０の導体部１２は、電線１０の一端部側に複数の芯線１３の端部が溶融接合した略直方体形状（板状）の溶融接合部１４を有している。導体部１２の溶融接合部１４は、端子２０との接触部１６側の端面が、端子２０における接触部１６側の端面と略同一形状を有している。   As shown in FIG. 1A, the conductor portion 12 of the electric wire 10 has a substantially rectangular parallelepiped (plate-like) fusion bonding portion 14 in which the ends of the plurality of core wires 13 are fusion bonded to one end portion of the electric wire 10. doing. In the fusion bonded portion 14 of the conductor portion 12, the end surface on the contact portion 16 side with the terminal 20 has substantially the same shape as the end surface on the contact portion 16 side in the terminal 20.

図１（ｂ）は図１（ａ）のＡ−Ａ部分断面図である。図１（ｂ）に示すように、導体部１２の溶融接合部１４と端子２０との接触部１６の全外周縁に導体部１２と端子２０とに跨ってアルミニウム（第１の金属）と銅（第２の金属）とを含む合金層１５が形成されている。この合金層１５により、導体部１２と端子２０とが強固に接続されている。合金層１５は、導体部１２と端子２０との接触部１６の全域のうち、少なくとも外部に露出した表層部に形成されている。   FIG.1 (b) is AA partial sectional drawing of Fig.1 (a). As shown in FIG. 1 (b), aluminum (first metal) and copper straddling the conductor portion 12 and the terminal 20 on the entire outer peripheral edge of the contact portion 16 between the fusion bonded portion 14 of the conductor portion 12 and the terminal 20 An alloy layer 15 containing (second metal) is formed. The conductor layer 12 and the terminal 20 are firmly connected by the alloy layer 15. The alloy layer 15 is formed on at least the surface layer portion exposed to the outside of the entire contact portion 16 between the conductor portion 12 and the terminal 20.

次に、端子付き電線１の製造方法を説明する。   Next, the manufacturing method of the electric wire 1 with a terminal is demonstrated.

まず、図２（ａ）に示すように、電線１０の端部の絶縁材１１を所定長さだけ皮剥ぎし、撚られた複数の芯線１３を露出させる（皮剥ぎ工程）。   First, as shown to Fig.2 (a), the insulating material 11 of the edge part of the electric wire 10 is peeled off only predetermined length, and the several twisted core wire 13 is exposed (skin peeling process).

次いで、図２（ｂ）に示すように、皮剥ぎ工程により露出した芯線１３の端部を、一対の金型３１、３１からなる成形機３０に入れて芯線１３を加熱しつつ加圧して所望の形状に成形する。この成形工程により、図２（ｃ）に示すように、各芯線１３の端部が溶融し、一体に接合されて溶融接合部１４が形成される。   Next, as shown in FIG. 2B, the end portion of the core wire 13 exposed by the skinning process is put into a molding machine 30 including a pair of molds 31 and 31, and the core wire 13 is heated and pressurized to be desired. Mold to the shape of By this forming step, as shown in FIG. 2C, the end portions of the core wires 13 are melted and joined together to form a melt-joined portion 14.

次いで、図２（ｄ）に示すように、成形工程により芯線１３が一体化した溶融接合部１４と端子２０とを突き合わせて、例えばレーザー溶接機４０により、接触部１６の全外周を接合する。この溶接工程により、溶融接合部１４と端子２０との接触部１６の全外周縁にアルミニウムと銅の合金層１５が形成される（図１（ｂ）参照）。   Next, as shown in FIG. 2 (d), the fusion bonding portion 14 in which the core wire 13 is integrated by the molding process and the terminal 20 are brought into contact with each other, and the entire outer periphery of the contact portion 16 is bonded by, for example, a laser welding machine 40. By this welding process, an alloy layer 15 of aluminum and copper is formed on the entire outer peripheral edge of the contact portion 16 between the fusion bonded portion 14 and the terminal 20 (see FIG. 1B).

次に、作用・効果について説明する。   Next, functions and effects will be described.

本実施の形態に係る端子付き電線１は、導体部１２と端子２０との接触部１６の全外周縁に導体部１２と端子２０とに跨ってアルミニウムと銅を含む合金層１５が形成されているので、アルミニウム部材と銅部材とが直接接触しかつ外部に露出している部分が存在しない。このため、異種金属の接触部１６に水分が付着することがなく、合金層１５により電線１０の導体部１２と端子２０との導電性を確保しつつ、異種金属接触腐食を確実に防止することができる。   In the electric wire with terminal 1 according to the present embodiment, an alloy layer 15 containing aluminum and copper is formed across the conductor portion 12 and the terminal 20 on the entire outer peripheral edge of the contact portion 16 between the conductor portion 12 and the terminal 20. Therefore, there is no portion where the aluminum member and the copper member are in direct contact and exposed to the outside. For this reason, moisture does not adhere to the contact portion 16 of the dissimilar metal, and it is possible to reliably prevent the dissimilar metal contact corrosion while ensuring the conductivity between the conductor portion 12 of the electric wire 10 and the terminal 20 by the alloy layer 15. Can do.

また、本実施の形態に係る端子付き電線１は、従来のように導体部と端子との接続部に防食剤が塗布された構成ではないので、接続部のサイズが制限を越えて大きくなることもない。   Moreover, since the terminal-attached electric wire 1 according to the present embodiment is not a configuration in which an anticorrosive agent is applied to the connecting portion between the conductor portion and the terminal as in the prior art, the size of the connecting portion exceeds the limit. Nor.

加えて、本実施の形態に係る端子付き電線１は、溶接等により導体部１２と端子２０との接触部１６の全外周縁に合金層１５が形成された構成であるので、従来のように圧着工程、防食剤の塗布工程などが不要となり、工程数を少なくでき低コストで製造可能である。しかも、本実施の形態に係る導体部１２と端子２０との接触部１６の全外周縁に形成された合金層１５は、従来の防食剤のように防水シールドの経年劣化や応力緩和が起こりにくい。   In addition, the electric wire with terminal 1 according to the present embodiment has a configuration in which the alloy layer 15 is formed on the entire outer peripheral edge of the contact portion 16 between the conductor portion 12 and the terminal 20 by welding or the like. A crimping step, an anticorrosive coating step, and the like are not required, and the number of steps can be reduced and manufacturing is possible at low cost. In addition, the alloy layer 15 formed on the entire outer peripheral edge of the contact portion 16 between the conductor portion 12 and the terminal 20 according to the present embodiment is less likely to cause aging deterioration and stress relaxation of the waterproof shield as in the case of a conventional anticorrosive agent. .

また、本実施の形態に係る端子付き電線１では、導体部１２は複数の芯線１３を含み、電線１０の一端部側に複数の芯線１３の端部が溶融接合した溶融接合部１４を有する構成である。この構成により、溶融接合部１４において複数の芯線１３が一体となっているので、芯線１３がばらけて他の電線等と短絡することがない。また、溶融接合部１４は、複数の芯線１３を加熱・加圧して形成することができ、その際に相手方の端子に適合するように所望の形状（板状、円柱状等）に容易に成形することができる。   Further, in the electric wire with terminal 1 according to the present embodiment, the conductor portion 12 includes a plurality of core wires 13, and has a fusion joint portion 14 in which the ends of the plurality of core wires 13 are melt-bonded on one end side of the electric wire 10. It is. With this configuration, since the plurality of core wires 13 are integrated in the melt-bonded portion 14, the core wires 13 are not scattered and short-circuited with other electric wires or the like. In addition, the melt-bonded portion 14 can be formed by heating and pressurizing a plurality of core wires 13, and at that time, it is easily formed into a desired shape (plate shape, columnar shape, etc.) so as to be compatible with the counterpart terminal. can do.

また、本実施の形態に係る端子付き電線１では、導体部１２の溶融接合部１４における接触部１６側の端面が、端子２０における接触部１６側の端面と略同一形状である。この構成により、本実施の形態に係る端子付き電線１は、導体部１２の溶融接合部１４と端子２０とが段差なく接続されるので、例えば小サイズ・狭ピッチのコネクタに端子付き電線１の端子２０を挿入する構成の場合にも好適に使用することができる。   Further, in the electric wire with terminal 1 according to the present embodiment, the end surface on the contact portion 16 side in the fusion bonded portion 14 of the conductor portion 12 has substantially the same shape as the end surface on the contact portion 16 side in the terminal 20. With this configuration, in the terminal-attached electric wire 1 according to the present embodiment, the fusion-bonded portion 14 of the conductor portion 12 and the terminal 20 are connected without a step. It can be suitably used also in the case of a configuration in which the terminal 20 is inserted.

また、本実施の形態に係る端子付き電線１では、芯線１３はアルミニウム製またはアルミニウム合金製であり、端子２０は銅製または銅合金製である。この構成により、本実施の形態に係る端子付き電線１は、電線１０の導体部１２に軽量のアルミニウム線を用い、端子２０に電気伝導率の高い銅を用いることで、導体部１２と端子２０との導電性を確保しつつ、電線１０の軽量化を図ることができる。   Moreover, in the electric wire with terminal 1 according to the present embodiment, the core wire 13 is made of aluminum or an aluminum alloy, and the terminal 20 is made of copper or a copper alloy. With this configuration, the terminal-attached electric wire 1 according to the present embodiment uses a lightweight aluminum wire for the conductor portion 12 of the electric wire 10 and uses copper having a high electrical conductivity for the terminal 20, whereby the conductor portion 12 and the terminal 20. The electric wire 10 can be reduced in weight while ensuring electrical conductivity.

（第２の実施の形態）
次に、本発明の第２の実施の形態に係る端子付き電線１Ａについて図面を参照して説明する。 (Second Embodiment)
Next, a terminal-attached electric wire 1A according to a second embodiment of the present invention will be described with reference to the drawings.

図３は、端子付き電線１Ａについて図１（ｂ）と同様の部分断面を示す図である。図３に示すように、端子付き電線１Ａは、導体部１２と端子２０との接触部１６の全域において、導体部１２と端子２０とに跨ってアルミニウムと銅を含む合金層１５Ａが形成されている。この点において、第２の実施形態は、導体部１２と端子２０との接触部１６の全外周縁に合金層１５が形成されている第１の実施の形態と相違しており、その他の構成は同じである。   FIG. 3 is a diagram showing a partial cross section similar to FIG. As shown in FIG. 3, in the terminal-attached electric wire 1 </ b> A, an alloy layer 15 </ b> A containing aluminum and copper is formed across the conductor portion 12 and the terminal 20 in the entire contact portion 16 between the conductor portion 12 and the terminal 20. Yes. In this respect, the second embodiment is different from the first embodiment in which the alloy layer 15 is formed on the entire outer peripheral edge of the contact portion 16 between the conductor portion 12 and the terminal 20, and the other configuration. Are the same.

第２の実施の形態の上記構成により、端子付き電線１Ａは、合金層１５Ａが接触部１６の全外周縁だけでなく接触部１６の全域に形成されているので、異種金属の接触部１６での腐食を確実に防止するとともに、電線１０の導体部１２と端子２０との接続強度を高めることができる。   With the above-described configuration of the second embodiment, in the terminal-attached electric wire 1A, the alloy layer 15A is formed not only on the entire outer peripheral edge of the contact portion 16 but also on the entire area of the contact portion 16. Can be reliably prevented, and the connection strength between the conductor portion 12 of the electric wire 10 and the terminal 20 can be increased.

（第３の実施の形態）
次に、本発明の第３の実施の形態に係る端子付き電線１Ｂについて図面を参照して説明する。 (Third embodiment)
Next, an electric wire with terminal 1B according to a third embodiment of the present invention will be described with reference to the drawings.

図４（ａ）に示すように、第３の実施の形態に係る端子付き電線１Ｂでは、導体部１２Ｂが単芯線１３Ｂであり、この単芯線１３Ｂの接続端部１４Ｂが、端子２０に接続されている。この点において、第３の実施形態は、複数の芯線１３の端部に形成された溶融接合部１４と端子２０とが接続された第１の実施の形態と相違しており、その他の構成は同じである。   As shown to Fig.4 (a), in the electric wire 1B with a terminal which concerns on 3rd Embodiment, the conductor part 12B is the single core wire 13B, and the connection end part 14B of this single core wire 13B is connected to the terminal 20. As shown in FIG. ing. In this respect, the third embodiment is different from the first embodiment in which the fusion bonded portion 14 formed at the end portion of the plurality of core wires 13 and the terminal 20 are connected, and other configurations are as follows. The same.

単芯線１３Ｂの接続端部１４Ｂは、図２（ｂ）に示す成形工程と同様の工程によって直方体状（板状）に成形され、接続端部１４Ｂの接触部１６側の端面が、端子２０の接触部１６側の端面と同一形状（同サイズの長方形）となっている。なお、本実施形態では、単芯線１３Ｂの接続端部１４Ｂを成形しているが、必ずしも成形する必要はなく、端部が成形されていない単芯線１３Ｂを端子２０に直接接続してもよい。   The connecting end portion 14B of the single core wire 13B is formed into a rectangular parallelepiped shape (plate shape) by the same process as the forming step shown in FIG. 2B, and the end surface of the connecting end portion 14B on the contact portion 16 side is It has the same shape (rectangular size) as the end surface on the contact portion 16 side. In the present embodiment, the connection end 14B of the single core wire 13B is formed. However, it is not always necessary to form the single core wire 13B, and the single core wire 13B having no end may be directly connected to the terminal 20.

第３の実施の形態の上記構成により、端子付き電線１Ｂは、導体部１２Ｂが単芯線１３Ｂの場合に単芯線１３Ｂの接続端部１４Ｂと端子２０との接触部１６において異種金属接触腐食を確実に防止することができる。   With the above-described configuration of the third embodiment, the terminal-attached electric wire 1 </ b> B ensures that different metal contact corrosion occurs at the contact portion 16 between the connection end 14 </ b> B of the single core wire 13 </ b> B and the terminal 20 when the conductor portion 12 </ b> B is the single core wire 13 </ b> B. Can be prevented.

（第４の実施の形態）
次に、本発明の第４の実施の形態に係る端子付き電線１Ｃについて図面を参照して説明する。 (Fourth embodiment)
Next, a terminal-attached electric wire 1C according to a fourth embodiment of the present invention will be described with reference to the drawings.

図５に示すように、本実施の形態に係る端子付き電線１Ｃでは、導体部１２Ｃの溶融接合部１４Ｃにおける接触部１６側の端面１４Ｃａが、端子２０における接触部１６側の端面２０ｃと異なる大きさである。具体的には、溶融接合部１４Ｃ側の端面１４Ｃａが、端子２０側の端面２０ｃより大きくなっている。そして、溶融接合部１４Ｃと端子２０との接触部１６の全外周縁（隅部）に、導体部１２Ｃと端子２０とに跨ってアルミニウムと銅を含む合金層１５Ｃが例えばレーザ溶接により形成されている。   As shown in FIG. 5, in the electric wire with terminal 1C according to the present embodiment, the end surface 14Ca on the contact portion 16 side in the fusion bonded portion 14C of the conductor portion 12C is different from the end surface 20c on the contact portion 16 side in the terminal 20. That's it. Specifically, the end surface 14Ca on the fusion bonded portion 14C side is larger than the end surface 20c on the terminal 20 side. Then, an alloy layer 15C containing aluminum and copper is formed by laser welding, for example, across the conductor portion 12C and the terminal 20 on the entire outer peripheral edge (corner portion) of the contact portion 16 between the fusion bonded portion 14C and the terminal 20. Yes.

この構成により、本実施の形態に係る端子付き電線１Ｃは、電線１０Ｃの導体部１２Ｃの種々の径に対して同一の端子２０を接続することができる。電線に圧着端子を加締めて取付ける場合には、適合する電線サイズに限界があるが、本実施の形態の構成ではこのような限界はない。   With this configuration, the terminal-attached electric wire 1C according to the present embodiment can connect the same terminal 20 to various diameters of the conductor portion 12C of the electric wire 10C. When a crimp terminal is attached by crimping to an electric wire, there is a limit to the size of the electric wire to be fitted, but there is no such limit in the configuration of the present embodiment.

本実施の形態では、溶融接合部１４Ｃの接触部１６側の端面１４Ｃａのサイズが、端子２０の接触部１６側の端面２０ｃのサイズより大きいが、サイズの大小関係はこれに限定されず、溶融接合部１４Ｃの接触部１６側の端面１４Ｃａのサイズを、端子２０の接触部１６側の端面２０ｃのサイズより小さくしてもよい。   In the present embodiment, the size of the end surface 14Ca on the contact portion 16 side of the fusion bonded portion 14C is larger than the size of the end surface 20c on the contact portion 16 side of the terminal 20, but the size relationship is not limited to this. The size of the end surface 14Ca on the contact portion 16 side of the joint portion 14C may be smaller than the size of the end surface 20c on the contact portion 16 side of the terminal 20.

また、本実施の形態では、図５の部分断面図において、端子２０の上面２０ａが、溶融接合部１４Ｃの上面１４Ｃａよりも低い段差状になっているが、端子２０の配置を上にずらして端子２０の上面２０ａが、溶融接合部１４Ｃの上面１４Ｃａよりも高い段差状にしてもよい。同様に、図５の部分断面図において、端子２０の下面２０ｂが、溶融接合部１４Ｃの下面１４Ｃｂよりも高い段差状になっているが、端子２０の配置を下にずらして端子２０の下面２０ｂが、溶融接合部１４Ｃの下面１４Ｃｂよりも低い段差状にしてもよい。   Further, in the present embodiment, in the partial cross-sectional view of FIG. 5, the upper surface 20a of the terminal 20 has a stepped shape lower than the upper surface 14Ca of the fusion bonded portion 14C, but the arrangement of the terminal 20 is shifted upward. The upper surface 20a of the terminal 20 may be stepped higher than the upper surface 14Ca of the fusion bonded part 14C. Similarly, in the partial cross-sectional view of FIG. 5, the lower surface 20b of the terminal 20 has a stepped shape higher than the lower surface 14Cb of the fusion bonding portion 14C. However, it may be stepped lower than the lower surface 14Cb of the fusion bonded portion 14C.

（第５の実施の形態）
次に、本発明の第５の実施の形態に係る端子付き電線１Ｄについて図面を参照して説明する。 (Fifth embodiment)
Next, a terminal-attached electric wire 1D according to a fifth embodiment of the present invention will be described with reference to the drawings.

図６に示すように、本実施の形態に係る端子付き電線１Ｄでは、導体部１２の溶融接合部１４の端部１４ａが、端子２０Ｄの接触部側の端面２０Ｄａに形成された凹部２１Ｄに嵌合している。溶融接合部１４と端子２０Ｄとの接触部の全外周縁（隅部）に、導体部１２と端子２０Ｄとに跨ってアルミニウムと銅を含む合金層１５Ｄが例えばレーザ溶接により形成されている。   As shown in FIG. 6, in the terminal-attached electric wire 1D according to the present embodiment, the end portion 14a of the fusion bonded portion 14 of the conductor portion 12 is fitted into the recess 21D formed on the end surface 20Da on the contact portion side of the terminal 20D. Match. An alloy layer 15D containing aluminum and copper is formed, for example, by laser welding across the conductor portion 12 and the terminal 20D on the entire outer peripheral edge (corner portion) of the contact portion between the fusion bonded portion 14 and the terminal 20D.

この構成により、本実施の形態に係る端子付き電線１Ｄは、導体部１２の溶融接合部１４と端子２０Ｄとを溶接等により接続する際に、端子２０Ｄ側の凹部２１Ｄが、溶融接合部１４の端部１４ａをガイドすることで、容易かつ正確に位置合わせすることができる。また、このように導体部１２と端子２０Ｄとの接触部における嵌合により、電線１０の導体部１２と端子２０Ｄとの接続強度を高めることができる。   With this configuration, when the terminal-attached electric wire 1D according to the present embodiment connects the fusion bonding portion 14 of the conductor portion 12 and the terminal 20D by welding or the like, the concave portion 21D on the terminal 20D side is connected to the fusion bonding portion 14. By guiding the end portion 14a, alignment can be performed easily and accurately. Moreover, the connection intensity | strength of the conductor part 12 of the electric wire 10 and the terminal 20D can be raised by the fitting in the contact part of the conductor part 12 and the terminal 20D in this way.

本実施の形態では、溶融接合部１４の端部１４ａが端子２０Ｄの凹部２１Ｄに嵌合する構成であるが、この嵌合構造に限定されず、端子２０Ｄの端部が溶融接合部１４に形成された凹部に嵌合する構成であってもよい。   In the present embodiment, the end portion 14a of the melt bonded portion 14 is configured to fit into the concave portion 21D of the terminal 20D. However, the present invention is not limited to this fitting structure, and the end portion of the terminal 20D is formed in the melt bonded portion 14. The structure which fits into the recessed part made may be sufficient.

（第６の実施の形態）
次に、本発明の第６の実施の形態に係る端子付き電線１Ｅについて図面を参照して説明する。 (Sixth embodiment)
Next, an electric wire with terminal 1E according to a sixth embodiment of the present invention will be described with reference to the drawings.

図７に示すように、本実施の形態に係る端子付き電線１Ｅでは、導体部１２Ｅの接触部側の端面（すなわち溶融接合部１４Ｅの端面１４Ｅａ）に形成された凸部１９が、端子２０Ｅの接触部側の端面２０Ｅａに形成された凹部２１Ｅに嵌合している。溶融接合部１４Ｅと端子２０Ｅとの接触部の全外周縁に、導体部１２Ｅと端子２０Ｅとに跨ってアルミニウムと銅を含む合金層１５Ｅが例えばレーザ溶接により形成されている。   As shown in FIG. 7, in the electric wire with terminal 1E according to the present embodiment, the convex portion 19 formed on the end surface on the contact portion side of the conductor portion 12E (that is, the end surface 14Ea of the fusion bonded portion 14E) is formed on the terminal 20E. It fits into a recess 21E formed in the end surface 20Ea on the contact portion side. An alloy layer 15E containing aluminum and copper is formed, for example, by laser welding across the conductor portion 12E and the terminal 20E on the entire outer peripheral edge of the contact portion between the melt-bonded portion 14E and the terminal 20E.

この構成により、本実施の形態に係る端子付き電線１Ｅは、第５の実施の形態に係る端子付き電線１Ｅが奏する上記効果に加えて、導体部１２Ｅと端子２０Ｅとを段差なく接続することができるので、例えば小サイズ・狭ピッチのコネクタに端子付き電線１Ｅの端子２０Ｅを挿入する構成の場合にも好適に使用することができる。   With this configuration, the terminal-attached electric wire 1E according to the present embodiment can connect the conductor portion 12E and the terminal 20E without a step in addition to the above-described effects exhibited by the terminal-attached electric wire 1E according to the fifth embodiment. Therefore, for example, it can be suitably used also in the case of a configuration in which the terminal 20E of the electric wire with terminal 1E is inserted into a small size / narrow pitch connector.

本実施の形態では、溶融接合部１４Ｅの凸部１９が端子２０Ｅの凹部２１Ｅに嵌合する構成であるが、この嵌合構造に限定されず、端子２０Ｅに形成された凸部が溶融接合部１４Ｅに形成された凹部に嵌合する構成であってもよい。   In the present embodiment, the convex portion 19 of the melt bonded portion 14E is configured to fit into the concave portion 21E of the terminal 20E. However, the present invention is not limited to this fitting structure, and the convex portion formed on the terminal 20E is the melt bonded portion. The structure which fits into the recessed part formed in 14E may be sufficient.

（第７の実施の形態）
次に、本発明の第７の実施の形態に係る端子付き電線１Ｆについて図面を参照して説明する。 (Seventh embodiment)
Next, an electric wire with terminal 1F according to a seventh embodiment of the present invention will be described with reference to the drawings.

図８に示すように、本実施の形態に係る端子付き電線１Ｆでは、導体部１２の溶融接合部１４の上面１４ｂに端子２０Ｆの下面２０Ｆｂが一部重ねられて接続された構造である。溶融接合部１４と端子２０Ｆとの接触部１６Ｆの全外周縁に、導体部１２と端子２０Ｆとに跨ってアルミニウムと銅を含む合金層１５Ｆが例えばレーザ溶接により形成されている。端子２０Ｆには板バネなどの付属物２２Ｆが設けられているが、付属物２２Ｆがない構成であってもよい。   As shown in FIG. 8, the terminal-attached electric wire 1 </ b> F according to the present embodiment has a structure in which the lower surface 20 </ b> Fb of the terminal 20 </ b> F is partially overlapped and connected to the upper surface 14 b of the fusion bonded portion 14 of the conductor portion 12. An alloy layer 15F containing aluminum and copper is formed, for example, by laser welding across the conductor portion 12 and the terminal 20F on the entire outer peripheral edge of the contact portion 16F between the melt-bonded portion 14 and the terminal 20F. The terminal 20F is provided with an accessory 22F such as a leaf spring, but may have a configuration without the accessory 22F.

本実施の形態の構成により、端子２０Ｆが薄い板状の場合であって、端子２０Ｆと溶融接合部１４とを突き合わせて溶接したのでは必要な接続強度が得られないようなときに、端子２０Ｆと溶融接合部１４との接触面積を増やして接続強度を高めることができる。   With the configuration of the present embodiment, when the terminal 20F has a thin plate shape and the terminal 20F and the fusion bonded portion 14 are brought into contact with each other and welded, the necessary connection strength cannot be obtained. It is possible to increase the contact area between the melt-bonded portion 14 and the connection strength.

（第８の実施の形態）
次に、本発明の第８の実施の形態に係る端子付き電線１Ｇについて図面を参照して説明する。 (Eighth embodiment)
Next, a terminal-attached electric wire 1G according to an eighth embodiment of the present invention will be described with reference to the drawings.

図９は、本実施の形態に係る端子付き電線１Ｇの製造方法を示す説明図である。図２に示す第１の実施の形態に係る端子付き電線１の製造方法とは、図９（ｂ）の成形工程において芯線１３Ｇの端部を円柱状に成形している点で相違している。   FIG. 9 is an explanatory view showing a method of manufacturing the terminal-attached electric wire 1G according to the present embodiment. The manufacturing method of the electric wire 1 with a terminal according to the first embodiment shown in FIG. 2 is different in that the end of the core wire 13G is formed in a columnar shape in the forming step of FIG. 9B. .

本実施形態に係る端子付き電線１Ｇは、図９（ｃ）に示す電線１０Ｇの円柱状の溶融接合部１４Ｇに、図９（ｄ）に示すように円柱状の端子２０Ｇが例えばレーザー溶接機４０などにより接合されている。本実施の形態においても、第１の実施の形態と同様に、溶融接合部１４Ｇと端子２０Ｇとの接触部１６Ｇの全外周縁に、導体部１２Ｇの溶融接合部１４Ｇと端子２０Ｇとに跨ってアルミニウムと銅を含む合金層１５Ｇが形成されている。   In the terminal-attached electric wire 1G according to the present embodiment, the cylindrical terminal 20G is, for example, a laser welding machine 40 as shown in FIG. 9 (d), and the cylindrical terminal 20G of the electric wire 10G shown in FIG. 9 (c). Etc. are joined together. Also in the present embodiment, as in the first embodiment, the entire outer peripheral edge of the contact portion 16G between the fusion bonding portion 14G and the terminal 20G extends across the fusion bonding portion 14G of the conductor portion 12G and the terminal 20G. An alloy layer 15G containing aluminum and copper is formed.

上記実施の形態では、第３の実施形態を除いて主に導体部が複数の芯線を含む形態の端子付き電線について説明してきたが、導体部が単芯線の場合についても同様の構成にできることはもちろんである。   In the said embodiment, although the electric wire with a terminal of the form in which the conductor part mainly contains the several core wire was demonstrated except 3rd Embodiment, it can be set as the same structure also when the conductor part is a single core wire. Of course.

以上説明したように、本発明は、電線の導体部と端子との導電性を確保しつつ、異種金属接触腐食を確実に防止することができるという効果を有し、端子付き電線の全般に有用である。   As described above, the present invention has an effect of reliably preventing the contact corrosion of different metals while ensuring the conductivity between the conductor portion of the electric wire and the terminal, and is useful for all electric wires with terminals. It is.

１ 端子付き電線
１０ 電線
１１ 絶縁材
１２ 導体部
１３ 芯線
１４ 溶融接合部
１５ 合金層
１６ 接触部
１９ 凸部
２０ 端子
２１Ｄ、２１Ｅ 凹部
２２Ｆ 付属物
３０ 成形機
３１、３２ 金型
４０ レーザー溶接機 DESCRIPTION OF SYMBOLS 1 Electric wire with a terminal 10 Electric wire 11 Insulation material 12 Conductor part 13 Core wire 14 Fusion joint part 15 Alloy layer 16 Contact part 19 Convex part 20 Terminal 21D, 21E Concave part 22F Accessory 30 Molding machine 31, 32 Mold 40 Laser welding machine

Claims (8)

第１の金属を主成分とする材料からなる導体部が絶縁材で被覆された電線と、
前記第１の金属とは別の第２の金属を主成分とする材料からなり、前記電線の一端部にて露出した前記導体部に接続された端子と、
を備え、前記導体部と前記端子との接触部の全外周縁に前記導体部と前記端子とに跨って前記第１の金属と前記第２の金属とを含む合金層が形成されていることを特徴とする端子付き電線。 An electric wire in which a conductor made of a material mainly composed of a first metal is covered with an insulating material;
A terminal composed of a material mainly composed of a second metal different from the first metal, and connected to the conductor portion exposed at one end of the electric wire;
And an alloy layer including the first metal and the second metal is formed across the conductor portion and the terminal on the entire outer periphery of the contact portion between the conductor portion and the terminal. An electric wire with a terminal. 前記導体部は複数の芯線を含み、前記電線の一端部側に前記複数の芯線の端部が溶融接合した溶融接合部を有し、前記溶融接合部が前記端子に接続されていることを特徴とする請求項１に記載の端子付き電線。   The conductor portion includes a plurality of core wires, and has an end portion of the plurality of core wires melt-bonded to one end portion side of the electric wire, and the melt-bonded portion is connected to the terminal. The electric wire with a terminal according to claim 1. 前記導体部は単芯線であり、前記単芯線は前記端子に接続された接続端部を有することを特徴とする請求項１に記載の端子付き電線。   The said conductor part is a single core wire, The said single core wire has a connection end part connected to the said terminal, The electric wire with a terminal of Claim 1 characterized by the above-mentioned. 前記導体部における前記接触部側の端面が、前記端子における前記接触部側の端面と略同一形状を有していることを特徴とする請求項１〜３のいずれか１項に記載の端子付き電線。   4. The terminal according to claim 1, wherein an end surface of the conductor portion on the contact portion side has substantially the same shape as an end surface of the terminal on the contact portion side. Electrical wire. 前記導体部における前記接触部側の端面が、前記端子における前記接触部側の端面と異なる大きさを有していることを特徴とする請求項１〜３のいずれか１項に記載の端子付き電線。   The terminal according to claim 1, wherein an end surface of the conductor portion on the contact portion side has a size different from an end surface of the terminal on the contact portion side. Electrical wire. 前記導体部の前記接触部側の端面に形成された凸部または前記導体部の端部が、前記端子の前記接触部側の端面に形成された凹部に嵌合しているか、あるいは前記端子の前記接触部側の端面に形成された凸部または前記端子の端部が、前記導体部の前記接触部側の端面に形成された凹部に嵌合していることを特徴とする請求項１〜５のいずれか１項に記載の端子付き電線。   The convex portion formed on the end surface on the contact portion side of the conductor portion or the end portion of the conductor portion is fitted in the concave portion formed on the end surface on the contact portion side of the terminal, or the terminal The convex portion formed on the end surface on the contact portion side or the end portion of the terminal is fitted in the concave portion formed on the end surface on the contact portion side of the conductor portion. The electric wire with a terminal according to any one of 5. 前記合金層は前記導体部と前記端子との前記接触部の全域に形成されていることを特徴とする請求項１〜６のいずれか１項に記載の端子付き電線。   The said alloy layer is formed in the whole region of the said contact part of the said conductor part and the said terminal, The electric wire with a terminal of any one of Claims 1-6 characterized by the above-mentioned. 前記第１の金属はアルミニウムまたはその合金であり、前記第２の金属は銅またはその合金であることを特徴とする請求項１〜７のいずれか１項に記載の端子付き電線。   The electric wire with a terminal according to any one of claims 1 to 7, wherein the first metal is aluminum or an alloy thereof, and the second metal is copper or an alloy thereof.
JP2017092814A 2017-05-09 2017-05-09 Electric wire with terminal Pending JP2018190617A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2017092814A JP2018190617A (en) 2017-05-09 2017-05-09 Electric wire with terminal
CN201810084895.XA CN108879131A (en) 2017-05-09 2018-01-29 Electric wire with terminal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2017092814A JP2018190617A (en) 2017-05-09 2017-05-09 Electric wire with terminal

Publications (1)

Publication Number Publication Date
JP2018190617A true JP2018190617A (en) 2018-11-29

Family

ID=64325971

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2017092814A Pending JP2018190617A (en) 2017-05-09 2017-05-09 Electric wire with terminal

Country Status (2)

Country Link
JP (1) JP2018190617A (en)
CN (1) CN108879131A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113745862A (en) * 2020-05-27 2021-12-03 矢崎总业株式会社 Terminal connection structure
JP2022102052A (en) * 2020-12-25 2022-07-07 株式会社ミツバ Touch sensor unit and manufacturing method thereof

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7265751B2 (en) * 2019-02-19 2023-04-27 株式会社アスター Method for manufacturing busbar joint

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113745862A (en) * 2020-05-27 2021-12-03 矢崎总业株式会社 Terminal connection structure
JP2022102052A (en) * 2020-12-25 2022-07-07 株式会社ミツバ Touch sensor unit and manufacturing method thereof

Also Published As

Publication number Publication date
CN108879131A (en) 2018-11-23

Similar Documents

Publication Publication Date Title
JP5228116B2 (en) Connection structure
WO2011122302A1 (en) Electric wire with terminal fittings and manufacturing method of said electric wire
JP5914942B2 (en) Aluminum wire with terminal
CN110021828B (en) Terminal-equipped electric wire and method for manufacturing terminal-equipped electric wire
KR20150102981A (en) Aluminum electric wire with crimp-type terminal and method of manufacturing the same
JP2010020980A (en) Electric wire with terminal metal fitting, and manufacturing method thereof
US9666956B2 (en) Minute current crimping terminal and minute current wire harness
JP5369637B2 (en) Electric wire with terminal fitting and method for manufacturing the same
WO2013032030A1 (en) Electric cable end processing method and electric cable end structure with solder coating and sheath protection
US10777911B2 (en) Electric cable connecting terminal and method for connecting together electric cable connecting terminal and electric cable
JP2018190617A (en) Electric wire with terminal
JP2010225529A (en) Electric wire with terminal metal fitting
JP2014157716A (en) Method for joining terminal and electric wire, and terminal for electric wire connection
JP6941731B2 (en) Manufacturing method of stranded wire connector and stranded wire connector for electric devices
CN111133539B (en) Electrical device having a terminal region and method for producing a terminal region
JP2018026309A (en) Electric wire with terminal
JP7244262B2 (en) Aluminum wire connection method and aluminum wire connection structure
JP2011238465A (en) Wire with terminal and manufacturing method thereof
JP5971513B2 (en) Electric wire with terminal and manufacturing method thereof
JP6133079B2 (en) Connection structure and connection method thereof
JP2019079734A (en) Aluminum wire crimping method and aluminum wire crimping structure
JP2016046220A (en) Wire with terminal and method of manufacturing the same
CN110690585B (en) Electric wire with terminal and method for manufacturing same
JP2017168398A (en) Terminal-attached electric cable and method for manufacturing the same
JP6232368B2 (en) Terminal connection method