JP2009231100A - Crimp terminal for aluminum wire - Google Patents

Crimp terminal for aluminum wire Download PDF

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Publication number
JP2009231100A
JP2009231100A JP2008076012A JP2008076012A JP2009231100A JP 2009231100 A JP2009231100 A JP 2009231100A JP 2008076012 A JP2008076012 A JP 2008076012A JP 2008076012 A JP2008076012 A JP 2008076012A JP 2009231100 A JP2009231100 A JP 2009231100A
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aluminum
wire
crimping
crimp
core wire
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JP5249616B2 (en
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Yasumichi Kuwayama
康路 桑山
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Yazaki Corp
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Yazaki Corp
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Priority to PCT/JP2009/054948 priority patent/WO2009119354A1/en
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    • 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
    • H01R4/10—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 effected solely by twisting, wrapping, bending, crimping, or other permanent deformation
    • H01R4/18—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 effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping
    • H01R4/20—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 effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping using a crimping sleeve
    • H01R4/203—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 effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping using a crimping sleeve having an uneven wire-receiving surface to improve the contact
    • H01R4/206—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 effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping using a crimping sleeve having an uneven wire-receiving surface to improve the contact with transversal grooves or threads
    • 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

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

Abstract

<P>PROBLEM TO BE SOLVED: To provide a crimp terminal for an aluminum wire reliably breaking an oxide coating on the surface of a core wire to obtain favorable electric connection. <P>SOLUTION: In the crimp terminal 10 for the aluminum wire including a crimp part 12 connected by crimping on the core wire 21 of the aluminum wire 20 and forming serrations 15, 15' on inner surfaces 13a, 14a of the crimp part 12, the crimp part 12 is formed into an almost U-shaped using a base 13 and a pair of crimp pieces 14, 14 integrally formed on the right and left sides of the base 13 and a pair of elongated serrations 15, 15' extending orthogonal to a lengthwise direction of the core wire 21 by alternately displacing their positions defining the center of the inner surface 13a of the base 13 as a boundary are formed on the inner surface 13a of the base 13 and the inner surfaces 14a of the pair of crimp pieces 14, 14. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、太物（大径）のアルミ電線との接続に用いて好適なアルミ電線用圧着端子に関する。   TECHNICAL FIELD The present invention relates to a crimp terminal for an aluminum electric wire suitable for connection with a thick (large diameter) aluminum electric wire.

この種のアルミ電線用圧着端子として、図１１及び図１２に示すものがある（例えば、特許文献１参照。）。   As this type of crimping terminal for an aluminum electric wire, there is one shown in FIGS. 11 and 12 (for example, see Patent Document 1).

このアルミ電線用圧着端子１は、図１１に示すように、図示しないボルト等の締結手段が貫通可能な貫通孔２ａを形成した締結部２と、アルミ電線５の複数本のアルミ素線６ａを撚って成る芯線６に圧着して接続される略Ｕ字状の圧着部３とを有している。この圧着部３の内面３ａには、芯線６の長さ方向に対して直交する方向に延びる複数のセレーション４を形成してある。   As shown in FIG. 11, the crimp terminal 1 for an aluminum wire includes a fastening portion 2 having a through hole 2 a through which a fastening means such as a bolt (not shown) can pass, and a plurality of aluminum strands 6 a of the aluminum wire 5. It has a substantially U-shaped crimping portion 3 that is crimped and connected to a twisted core wire 6. A plurality of serrations 4 extending in a direction orthogonal to the length direction of the core wire 6 are formed on the inner surface 3 a of the crimping portion 3.

そして、図１２に示すように、アルミ電線用圧着端子１の圧着部３にアルミ電線５の芯線６を加締めにより圧着すると、芯線６のアルミ素線６ａがセレーション４の溝に擦り付けられて摺動して、アルミ電線用圧着端子１の圧着部３の内面３ａと擦れて凝着が起き、この凝着現象により、芯線６のアルミ素線６ａの表面の酸化被膜が破壊されて露出した新生面（素地）とアルミ電線用圧着端子１の圧着部３とが凝着されて電気接続されるようになっている。
特開２００７−１７３２１５号公報（図１） 特開２００３−２４９２８４号公報（図７） Then, as shown in FIG. 12, when the core wire 6 of the aluminum wire 5 is crimped to the crimp portion 3 of the crimp terminal 1 for the aluminum wire by crimping, the aluminum strand 6a of the core wire 6 is rubbed into the groove of the serration 4 and slid. It moves and rubs against the inner surface 3a of the crimping portion 3 of the crimp terminal 1 for the aluminum electric wire 1 and adhesion occurs, and this adhesion phenomenon destroys and exposes the oxide film on the surface of the aluminum wire 6a of the core wire 6 The (base) and the crimping part 3 of the crimp terminal 1 for an aluminum electric wire are adhered and electrically connected.
Japanese Patent Laying-Open No. 2007-173215 (FIG. 1) Japanese Patent Laying-Open No. 2003-249284 (FIG. 7)

しかしながら、前記従来のアルミ電線用圧着端子１では、等間隔毎に形成された複数のセレーション４により芯線６のアルミ素線６ａの表面の酸化被膜を破壊するようになっているため、アルミ素線６ａの本数が増えた太物（大径）のアルミ電線５を接続する場合には、芯線６のアルミ素線６ａのセレーション４による摺動が同一方向になってその摺動距離（凝着量）が小さくなってしまい、該芯線６のアルミ素線６ａの表面の酸化被膜を完全に破壊することが難しくなり、特定のアルミ素線６ａにのみ電流が流れて集中抵抗が発生し易かった。この抵抗により、芯線６の温度上昇や導通不良等の不具合が発生した。   However, in the conventional crimp terminal 1 for an aluminum electric wire, since the oxide film on the surface of the aluminum wire 6a of the core wire 6 is broken by a plurality of serrations 4 formed at equal intervals, the aluminum wire When connecting a thick (large-diameter) aluminum wire 5 having an increased number of wires 6a, the sliding of the core wire 6 by the serration 4 of the aluminum wire 6a becomes the same direction and the sliding distance (adhesion amount) ) Becomes smaller, it is difficult to completely destroy the oxide film on the surface of the aluminum wire 6a of the core wire 6, and current flows only through the specific aluminum wire 6a, and concentrated resistance is easily generated. Due to this resistance, problems such as a temperature rise of the core wire 6 and poor conduction occurred.

そこで、本発明は、前記した課題を解決すべくなされたものであり、芯線の表面の酸化被膜を確実に破壊して良好な電気接続を得ることができるアルミ電線用圧着端子を提供することを目的とする。   Accordingly, the present invention has been made to solve the above-described problems, and provides a crimp terminal for an aluminum electric wire that can reliably destroy the oxide film on the surface of the core wire and obtain a good electrical connection. Objective.

請求項１の発明は、アルミ電線の芯線に圧着して接続される圧着部を有し、この圧着部の内面に前記芯線の長さ方向に対して直交する方向に延びるセレーションを形成したアルミ電線用圧着端子において、前記圧着部の内面にその中央を境にして互い違いに位置をずらして一対のセレーションを形成したことを特徴とする。   The invention according to claim 1 includes an aluminum electric wire having a crimping portion connected by crimping to a core wire of the aluminum electric wire, and having serrations extending in a direction orthogonal to the length direction of the core wire on the inner surface of the crimping portion. In the crimp terminal for use, a pair of serrations are formed on the inner surface of the crimp part by alternately shifting the positions with the center as a boundary.

請求項２の発明は、請求項１記載のアルミ電線用圧着端子であって、前記圧着部をベースと該ベースの両側に形成された一対の圧着片とで略Ｕ字状に形成し、このベースの内面の中央から前記一対の圧着片の各内面に互い違いに位置をずらして前記各セレーションを形成したことを特徴とする。   The invention of claim 2 is the crimp terminal for aluminum electric wires according to claim 1, wherein the crimp part is formed in a substantially U shape by a base and a pair of crimp pieces formed on both sides of the base. The serrations are formed by alternately shifting the positions from the center of the inner surface of the base to the inner surfaces of the pair of crimping pieces.

以上説明したように、請求項１の発明によれば、圧着部の内面にその中央を境にして互い違いに位置をずらして一対のセレーションを形成したことにより、芯線のセレーションによる摺動を促進して凝着量を増やすことができ、圧着部と芯線とを確実に凝着させて良好な電気接続を得ることができる。   As described above, according to the first aspect of the present invention, a pair of serrations are formed on the inner surface of the crimping portion with the center thereof as a boundary to form a pair of serrations, thereby promoting sliding due to the serration of the core wire. Thus, the amount of adhesion can be increased, and a good electrical connection can be obtained by reliably adhering the crimping portion and the core wire.

請求項２の発明によれば、圧着部をベースと該ベースの両側に形成された一対の圧着片とで略Ｕ字状に形成し、このベースの内面の中央から一対の圧着片の各内面に互い違いに位置をずらして各セレーションを形成したことにより、ベースの内面の中央から各圧着片の内面に互い違いに形成された一つのセレーションで芯線の摺動を促進して凝着量を増やすことができ、圧着部と芯線とを確実に凝着させて良好な電気接続を得ることができる。   According to invention of Claim 2, a crimping | compression-bonding part is formed in a substantially U shape with a base and a pair of crimping piece formed in the both sides of this base, and each inner surface of a pair of crimping piece from the center of the inner surface of this base By alternately shifting the position of each serration and forming each serration, the one serration formed alternately from the center of the inner surface of the base to the inner surface of each crimping piece promotes sliding of the core wire to increase the amount of adhesion. It is possible to reliably adhere the crimping part and the core wire and to obtain a good electrical connection.

以下、本発明の実施形態を図面に基づいて説明する。   Hereinafter, embodiments of the present invention will be described with reference to the drawings.

図１（ａ）は本発明の第１の実施形態のアルミ電線用圧着端子の芯線が撚られた２本のアルミ電線を圧着する前の状態を示す斜視図、図１（ｂ）は同圧着端子の平面図、図２は同２本のアルミ電線を圧着したアルミ電線用圧着端子の断面図、図３は図２中Ａ−Ａ線に沿う断面図、図４は図２中Ｂ−Ｂ線に沿う断面図、図５は図２中Ｃ−Ｃ線に沿う断面図である。   FIG. 1A is a perspective view showing a state before crimping two aluminum electric wires in which the core wires of the aluminum electric wire crimp terminal according to the first embodiment of the present invention are twisted, and FIG. 2 is a cross-sectional view of a crimp terminal for an aluminum electric wire obtained by crimping the two aluminum electric wires, FIG. 3 is a cross-sectional view taken along line AA in FIG. 2, and FIG. 4 is a cross-sectional view taken along line BB in FIG. FIG. 5 is a cross-sectional view taken along line CC in FIG.

図１（ａ），（ｂ）に示すように、アルミ電線用圧着端子１０は、図示しないボルト等の締結手段が貫通可能な貫通孔１１ａを形成した銅製の締結部１１と、この締結部１１に一体形成され、アルミ電線２０の芯線（導体）２１に圧着して接続される圧着部１２とを有している。この圧着部１２は、ベース１３と該ベース１３の左右両側に一体形成された一対の圧着片１４，１４とで略Ｕ字状に形成してある。   As shown in FIGS. 1A and 1B, a crimp terminal 10 for an aluminum electric wire includes a copper fastening portion 11 having a through hole 11a through which fastening means such as a bolt (not shown) can pass, and the fastening portion 11. And a crimping portion 12 that is crimped and connected to the core wire (conductor) 21 of the aluminum electric wire 20. The crimping portion 12 is formed in a substantially U shape by a base 13 and a pair of crimping pieces 14, 14 integrally formed on the left and right sides of the base 13.

そして、図１〜図５に示すように、ベース１３の内面１３ａと一対の圧着片１４，１４の各内面１４ａには、該ベース１３の内面１３ａの中央を境にして互い違いに位置をずらして芯線２１の長さ方向に対して直交する方向に延びる一対の長尺のセレーション１５，１５′を形成してある。   As shown in FIGS. 1 to 5, the inner surface 13 a of the base 13 and the inner surfaces 14 a of the pair of crimping pieces 14, 14 are staggered with respect to the center of the inner surface 13 a of the base 13. A pair of long serrations 15 and 15 ′ extending in a direction orthogonal to the length direction of the core wire 21 are formed.

また、図１，図５に示すように、アルミ電線２０は、アルミニウム製またはアルミニウム合金製の複数本のアルミ素線２１ａを撚って成る芯線２１と、この芯線２１を被覆する絶縁被覆２２とで構成されている。   As shown in FIGS. 1 and 5, the aluminum electric wire 20 includes a core wire 21 formed by twisting a plurality of aluminum wires 21 a made of aluminum or an aluminum alloy, and an insulating coating 22 covering the core wire 21. It consists of

以上実施形態のアルミ電線用圧着端子１０によれば、図２〜図５に示すように、アルミ電線用圧着端子１０の圧着部１２の一対の圧着片１４，１４を該各圧着片１４内に２本のアルミ電線２０，２０の各芯線２１を丸め込むように加締めて該アルミ電線２０の各芯線２１に圧着すると、圧着部１２のベース１３の内面１３ａの中央から一対の圧着片１４，１４の各内面１４ａに互い違いに位置をずらして形成された各セレーション１５，１５′の溝と各内面１３ａ，１４ａとから成る凹凸により各芯線２１の複数のアルミ素線２１ａの表面の酸化被膜を破壊してその新生面（素地）が露出することにより、アルミ電線用圧着端子１０の圧着部１２に２本のアルミ電線２０の各芯線２１が良好な状態で電気接続される。   According to the aluminum wire crimping terminal 10 of the above embodiment, as shown in FIGS. 2 to 5, the pair of crimping pieces 14, 14 of the crimping portion 12 of the aluminum wire crimping terminal 10 is placed in each crimping piece 14. When the core wires 21 of the two aluminum electric wires 20 and 20 are crimped so as to be rounded and crimped to the core wires 21 of the aluminum electric wire 20, a pair of crimping pieces 14 and 14 are formed from the center of the inner surface 13 a of the base 13 of the crimp portion 12. The oxide film on the surface of the plurality of aluminum strands 21a of each core wire 21 is destroyed by the unevenness formed by the grooves of the serrations 15 and 15 'and the inner surfaces 13a and 14a formed on the inner surfaces 14a. Then, by exposing the new surface (substrate), the core wires 21 of the two aluminum electric wires 20 are electrically connected to the crimp portion 12 of the aluminum electric wire crimping terminal 10 in a good state.

即ち、撚られたアルミ素線２１ａの表面に酸化被膜を有した２本のアルミ電線２０の各芯線２１を銅製のアルミ電線用圧着端子１０の圧着部１２に加締める際に、図３及び図５に示すように、一方の芯線２１のアルミ素線２１ａがベース１３の内面１３ａの中央から一方の圧着片１４の内面１４ａのセレーション１５の溝に強く擦り付けられて図３，図５中矢印Ｆで示すように移動（摺動）すると共に、他方の芯線２１のアルミ素線２１ａがベース１３の内面１３ａの中央から他方の圧着片１４の内面１４ａのセレーション１５′の溝に強く擦り付けられて図４，図５中矢印Ｆ′で示すように移動（摺動）して、アルミ電線用圧着端子１０の圧着部１２に対して一方の芯線２１と他方の芯線２１とが互いに逆方向に擦れて凝着が起きる。この凝着現象により、各芯線２１のアルミ素線２１ａの表面の酸化被膜が確実に破壊されて露出した新生面（素地）と、銅から成るアルミ電線用圧着端子１０の圧着部１２とが接触導通すると共に凝着されて電気的に接続される。その結果、撚られた複数本のアルミ素線２１ａから成る各芯線２１の電気的な接触抵抗は小さくなり、また、芯線２１の全てのアルミ素線２１ａに均一な電流を流すことができるため、アルミ電線２０の芯線２１が太物（大径）の場合でも温度上昇を確実に低減させることができる。   That is, when crimping each core wire 21 of the two aluminum electric wires 20 having an oxide film on the surface of the twisted aluminum wire 21a to the crimping portion 12 of the copper aluminum wire crimping terminal 10, FIG. 5, the aluminum strand 21a of one core wire 21 is strongly rubbed from the center of the inner surface 13a of the base 13 to the groove of the serration 15 of the inner surface 14a of the one crimping piece 14, and the arrow F in FIGS. And the aluminum element wire 21a of the other core wire 21 is strongly rubbed from the center of the inner surface 13a of the base 13 to the groove of the serration 15 'of the inner surface 14a of the other crimping piece 14 as shown in FIG. 4, moving (sliding) as indicated by an arrow F ′ in FIG. 5, the one core wire 21 and the other core wire 21 rub against each other in the opposite direction against the crimping portion 12 of the crimp terminal 10 for the aluminum electric wire. Adhesion occurs. Due to this adhesion phenomenon, the surface of the aluminum wire 21a of each core wire 21 is surely broken and exposed, and the new surface (base material) exposed to the crimping portion 12 of the aluminum wire crimping terminal 10 made of copper is in contact conduction. At the same time, it is adhered and electrically connected. As a result, the electrical contact resistance of each core wire 21 composed of a plurality of twisted aluminum strands 21a is reduced, and a uniform current can flow through all the aluminum strands 21a of the core wire 21, Even when the core wire 21 of the aluminum electric wire 20 is thick (large diameter), the temperature rise can be reliably reduced.

さらに、アルミ電線用圧着端子１０の圧着部１２からの２本のアルミ電線２０，２０の各芯線２１の抜けを確実に防止させることができ、機械的接続性も向上させることができる。   Furthermore, it is possible to reliably prevent the core wires 21 of the two aluminum wires 20 and 20 from coming off from the crimping portion 12 of the crimping terminal 10 for aluminum wires, and to improve the mechanical connectivity.

図６（ａ）は本発明の第２の実施形態のアルミ電線用圧着端子の芯線がストレートの１本のアルミ電線を圧着する前の状態を示す斜視図、図６（ｂ）は同圧着端子の平面図、図７は同１本のアルミ電線を圧着したアルミ電線用圧着端子の断面図、図８は図７中Ａ−Ａ線に沿う断面図、図９は図７中Ｂ−Ｂ線に沿う断面図、図１０は図７中Ｃ−Ｃ線に沿う断面図である。   FIG. 6A is a perspective view showing a state before crimping one aluminum wire with a straight core wire of the crimp terminal for aluminum wire according to the second embodiment of the present invention, and FIG. FIG. 7 is a cross-sectional view of a crimp terminal for an aluminum wire obtained by crimping the same aluminum wire, FIG. 8 is a cross-sectional view taken along line AA in FIG. 7, and FIG. 9 is a line BB in FIG. FIG. 10 is a sectional view taken along line CC in FIG.

この第２の実施形態は、図６（ａ）及び図１０に示すように、撚らないストレートのアルミ素線２１ａ′を束にして芯線２１とした１本のアルミ電線２０を圧着するものであり、アルミ電線用圧着端子１０は前記第１の実施形態と同一構成のものを使用している。   In this second embodiment, as shown in FIGS. 6 (a) and 10, a single aluminum electric wire 20 which is a core wire 21 made by bundling straight aluminum strands 21a 'which are not twisted is crimped. Yes, the aluminum wire crimping terminal 10 has the same configuration as that of the first embodiment.

以上、第２の実施形態のアルミ電線用圧着端子１０によれば、図７〜図１０に示すように、アルミ電線用圧着端子１０の圧着部１２の一対の圧着片１４，１４を該各圧着片１４内に１本のアルミ電線２０の芯線２１の約半分を丸め込むように加締めて該アルミ電線２０の芯線２１に圧着すると、圧着部１２のベース１３の内面１３ａの中央から一対の圧着片１４，１４の各内面１４ａに互い違いに位置をずらして形成された各セレーション１５，１５′の溝と各内面１３ａ，１４ａとから成る凹凸により芯線２１の複数のアルミ素線２１ａ′の表面の酸化被膜を破壊してその新生面（素地）が露出することにより、アルミ電線用圧着端子１０の圧着部１２に１本のアルミ電線２０の芯線２１が良好な状態で電気接続される。   As described above, according to the crimp terminal 10 for the aluminum electric wire of the second embodiment, as shown in FIGS. 7 to 10, the pair of crimp pieces 14, 14 of the crimp part 12 of the crimp terminal 10 for the aluminum electric wire are crimped. When caulking so that about half of the core wire 21 of one aluminum electric wire 20 is rolled into the piece 14 and crimping to the core wire 21 of the aluminum electric wire 20, a pair of crimping pieces are formed from the center of the inner surface 13 a of the base 13 of the crimping portion 12. Oxidation of the surfaces of the plurality of aluminum wires 21a 'of the core wire 21 by the unevenness formed by the grooves of the serrations 15, 15' and the inner surfaces 13a, 14a formed on the inner surfaces 14a of the 14, 14 staggered positions. By destroying the coating and exposing the new surface (substrate), the core wire 21 of one aluminum electric wire 20 is electrically connected to the crimping portion 12 of the aluminum electric wire crimping terminal 10 in a good state.

即ち、ストレートのアルミ素線２１ａ′の表面に酸化被膜を有した１本のアルミ電線２０の芯線２１を銅製のアルミ電線用圧着端子１０の圧着部１２に加締める際に、図８及び図１０に示すように、芯線２１の約半分のアルミ素線２１ａ′がベース１３の内面１３ａの中央から一方の圧着片１４の内面１４ａのセレーション１５の溝に強く擦り付けられて図８，図１０中矢印Ｆで示すように移動（摺動）すると共に、芯線２１の残りの約半分のアルミ素線２１ａ′がベース１３の内面１３ａの中央から他方の圧着片１４の内面１４ａのセレーション１５′の溝に強く擦り付けられて図９，図１０中矢印Ｆ′で示すように移動（摺動）して、アルミ電線用圧着端子１０の圧着部１２に対して芯線２１の約半分のアルミ素線２１ａ′と該芯線２１の残りの約半分のアルミ素線２１ａ′とが互いに逆方向に擦れて凝着が起きる。この凝着現象により、芯線２１のアルミ素線２１ａ′の表面の酸化被膜が確実に破壊されて露出した新生面（素地）と、銅から成るアルミ電線用圧着端子１０の圧着部１２とが接触導通すると共に凝着されて電気的に接続される。その結果、撚られた複数本のアルミ素線２１ａ′から成る芯線２１の電気的な接触抵抗は小さくなり、また、芯線２１の全てのアルミ素線２１ａ′に均一な電流を流すことができるため、アルミ電線２０の芯線２１が太物（大径）の場合でも温度上昇を確実に低減させることができる。   That is, when the core wire 21 of one aluminum electric wire 20 having an oxide film on the surface of the straight aluminum wire 21a 'is crimped to the crimping portion 12 of the copper aluminum wire crimping terminal 10, FIGS. As shown in FIG. 8, about half of the aluminum wire 21 a ′ of the core wire 21 is strongly rubbed from the center of the inner surface 13 a of the base 13 to the groove of the serration 15 of the inner surface 14 a of one crimping piece 14. While moving (sliding) as indicated by F, the remaining half of the aluminum wire 21a 'of the core wire 21 is moved from the center of the inner surface 13a of the base 13 to the groove of the serration 15' of the inner surface 14a of the other crimping piece 14. 9 (a) and 10 (b) and moved (sliding) as shown by an arrow F 'in FIG. 9 and FIG. 10, and the aluminum wire 21a' which is about half of the core wire 21 with respect to the crimp portion 12 of the crimp terminal 10 for aluminum electric wire. Core wire 21 Adhesion and the remaining approximately half of the aluminum strands 21a 'rubbing in opposite directions occurs. Due to this adhesion phenomenon, the newly-formed surface (substrate) in which the oxide film on the surface of the aluminum strand 21a 'of the core wire 21 is surely broken and exposed and the crimping portion 12 of the aluminum wire crimping terminal 10 made of copper are in contact conduction. And are adhered and electrically connected. As a result, the electrical contact resistance of the core wire 21 composed of a plurality of twisted aluminum strands 21a 'is reduced, and a uniform current can be passed through all the aluminum strands 21a' of the core wire 21. Even when the core wire 21 of the aluminum electric wire 20 is thick (large diameter), the temperature rise can be reliably reduced.

さらに、アルミ電線用圧着端子１０の圧着部１２からのアルミ電線２０の芯線２１の抜けを確実に防止させることができ、機械的接続性も向上させることができる。   Furthermore, the core wire 21 of the aluminum electric wire 20 can be reliably prevented from coming off from the crimping portion 12 of the aluminum electric wire crimping terminal 10, and the mechanical connectivity can be improved.

尚、前記第１の実施形態によれば、複数本のアルミ素線を撚って芯線とした２本のアルミ電線を圧着する場合について説明したが、複数本のアルミ素線を撚って芯線とした１本のアルミ電線と撚らないアルミ素線を束にして芯線とした１本のアルミ電線の計２本のアルミ電線を圧着する場合にも前記実施形態を適用できることは勿論である。   In addition, according to the said 1st Embodiment, although demonstrated when crimping | bonding the two aluminum electric wires which twisted the multiple aluminum strands and made the core wire, twisted the multiple aluminum strands and the core wire Of course, the above-described embodiment can also be applied to the case where a total of two aluminum electric wires are crimped, such as a single aluminum electric wire and a single aluminum electric wire made into a core by bundling untwisted aluminum strands.

（ａ）は本発明の第１の実施形態のアルミ電線用圧着端子の芯線が撚られた２本のアルミ電線を圧着する前の状態を示す斜視図、（ｂ）は同圧着端子の平面図である。(A) is a perspective view which shows the state before crimping two aluminum electric wires by which the core wire of the crimp terminal for aluminum electric wires of the 1st Embodiment of this invention was twisted, (b) is a top view of the same crimp terminal. It is. 上記２本のアルミ電線を圧着したアルミ電線用圧着端子の断面図である。It is sectional drawing of the crimp terminal for aluminum wires which crimped | bonded the said two aluminum wires. 図２中Ａ−Ａ線に沿う断面図である。It is sectional drawing which follows the AA line in FIG. 図２中Ｂ−Ｂ線に沿う断面図である。It is sectional drawing which follows the BB line in FIG. 図２中Ｃ−Ｃ線に沿う断面図である。It is sectional drawing which follows the CC line in FIG. （ａ）は本発明の第２の実施形態のアルミ電線用圧着端子の芯線がストレートの１本のアルミ電線を圧着する前の状態を示す斜視図、（ｂ）は同圧着端子の平面図である。(A) is a perspective view which shows the state before crimping | bonding one aluminum electric wire whose core wire of the crimping terminal for aluminum electric wires of the 2nd Embodiment of this invention is straight, (b) is a top view of the said crimping terminal. is there. 上記１本のアルミ電線を圧着したアルミ電線用圧着端子の断面図である。It is sectional drawing of the crimp terminal for aluminum wires which crimped | bonded the said 1 aluminum wire. 図７中Ａ−Ａ線に沿う断面図である。It is sectional drawing which follows the AA line in FIG. 図７中Ｂ−Ｂ線に沿う断面図である。It is sectional drawing which follows the BB line in FIG. 図７中Ｃ−Ｃ線に沿う断面図である。It is sectional drawing which follows the CC line in FIG. 従来のアルミ電線用圧着端子のアルミ電線を圧着する前の状態を示す斜視図である。It is a perspective view which shows the state before crimping the aluminum electric wire of the conventional crimp terminal for aluminum electric wires. 上記従来のアルミ電線用圧着端子のアルミ電線を圧着した状態の断面図である。It is sectional drawing of the state which crimped | bonded the aluminum wire of the said conventional crimp terminal for aluminum wires.

符号の説明Explanation of symbols

１０ アルミ電線用圧着端子
１２ 圧着部
１３ ベース
１３ａ 内面
１４，１４ 一対の圧着片
１４ａ 内面
１５，１５′ セレーション
２０ アルミ電線
２１ 芯線
２１ａ，２１ａ′ アルミ素線 DESCRIPTION OF SYMBOLS 10 Crimp terminal for aluminum electric wires 12 Crimp part 13 Base 13a Inner surface 14,14 A pair of crimping pieces 14a Inner surface 15,15 'Serration 20 Aluminum electric wire 21 Core wire 21a, 21a' Aluminum strand

Claims (2)

アルミ電線の芯線に圧着して接続される圧着部を有し、この圧着部の内面に前記芯線の長さ方向に対して直交する方向に延びるセレーションを形成したアルミ電線用圧着端子において、
前記圧着部の内面にその中央を境にして互い違いに位置をずらして一対のセレーションを形成したことを特徴とするアルミ電線用圧着端子。 In a crimp terminal for an aluminum electric wire having a crimp portion connected by being crimped to a core wire of an aluminum electric wire, and forming a serration extending in a direction orthogonal to the length direction of the core wire on the inner surface of the crimp portion,
A crimp terminal for an aluminum electric wire, characterized in that a pair of serrations are formed on the inner surface of the crimp portion by alternately shifting the position with the center as a boundary. 請求項１記載のアルミ電線用圧着端子であって、
前記圧着部をベースと該ベースの両側に形成された一対の圧着片とで略Ｕ字状に形成し、このベースの内面の中央から前記一対の圧着片の各内面に互い違いに位置をずらして前記各セレーションを形成したことを特徴とするアルミ電線用圧着端子。 A crimp terminal for an aluminum electric wire according to claim 1,
The crimping portion is formed in a substantially U shape by a base and a pair of crimping pieces formed on both sides of the base, and the positions are alternately shifted from the center of the inner surface of the base to the inner surfaces of the pair of crimping pieces. A crimp terminal for an aluminum electric wire, wherein each of the serrations is formed.
JP2008076012A 2008-03-24 2008-03-24 Crimp terminal for aluminum wire Expired - Fee Related JP5249616B2 (en)

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JP2008076012A JP5249616B2 (en) 2008-03-24 2008-03-24 Crimp terminal for aluminum wire
PCT/JP2009/054948 WO2009119354A1 (en) 2008-03-24 2009-03-13 Crimp terminal for aluminum electric wire

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010161055A (en) * 2008-12-12 2010-07-22 Yazaki Corp Connecting structure of electric wire to male terminal
JP2018507519A (en) * 2015-02-25 2018-03-15 ティーイー・コネクティビティ・コーポレイションＴＥ Ｃｏｎｎｅｃｔｉｖｉｔｙ Ｃｏｒｐｏｒａｔｉｏｎ Electrical wire containing conductive particles
JP2018085232A (en) * 2016-11-24 2018-05-31 株式会社オートネットワーク技術研究所 Crimp terminal, wire with terminal, and method of manufacturing wire with terminal
KR102716222B1 (en) * 2021-11-16 2024-10-11 주식회사 경신 Joint terminal for wire of vehicle

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Publication number Priority date Publication date Assignee Title
JPH10189074A (en) * 1996-12-26 1998-07-21 Yazaki Corp Pressure contact terminal for double wire
JP2001189168A (en) * 2000-01-05 2001-07-10 Calsonic Kansei Corp Clmping structure for electric connection terminal
JP2003249284A (en) * 2002-02-25 2003-09-05 Auto Network Gijutsu Kenkyusho:Kk Crimp style terminal for aluminum wire
JP2006173053A (en) * 2004-12-20 2006-06-29 Jst Mfg Co Ltd Socket connector
JP2007123135A (en) * 2005-10-31 2007-05-17 Mitsubishi Cable Ind Ltd Joint connector

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10189074A (en) * 1996-12-26 1998-07-21 Yazaki Corp Pressure contact terminal for double wire
JP2001189168A (en) * 2000-01-05 2001-07-10 Calsonic Kansei Corp Clmping structure for electric connection terminal
JP2003249284A (en) * 2002-02-25 2003-09-05 Auto Network Gijutsu Kenkyusho:Kk Crimp style terminal for aluminum wire
JP2006173053A (en) * 2004-12-20 2006-06-29 Jst Mfg Co Ltd Socket connector
JP2007123135A (en) * 2005-10-31 2007-05-17 Mitsubishi Cable Ind Ltd Joint connector

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010161055A (en) * 2008-12-12 2010-07-22 Yazaki Corp Connecting structure of electric wire to male terminal
JP2018507519A (en) * 2015-02-25 2018-03-15 ティーイー・コネクティビティ・コーポレイションＴＥ Ｃｏｎｎｅｃｔｉｖｉｔｙ Ｃｏｒｐｏｒａｔｉｏｎ Electrical wire containing conductive particles
JP2018085232A (en) * 2016-11-24 2018-05-31 株式会社オートネットワーク技術研究所 Crimp terminal, wire with terminal, and method of manufacturing wire with terminal
KR102716222B1 (en) * 2021-11-16 2024-10-11 주식회사 경신 Joint terminal for wire of vehicle

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WO2009119354A1 (en) 2009-10-01

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