[go: up one dir, main page]

JP5030232B2 - Crimp terminal for aluminum wire - Google Patents

Crimp terminal for aluminum wire Download PDF

Info

Publication number
JP5030232B2
JP5030232B2 JP2008016603A JP2008016603A JP5030232B2 JP 5030232 B2 JP5030232 B2 JP 5030232B2 JP 2008016603 A JP2008016603 A JP 2008016603A JP 2008016603 A JP2008016603 A JP 2008016603A JP 5030232 B2 JP5030232 B2 JP 5030232B2
Authority
JP
Japan
Prior art keywords
aluminum
barrel
conductor portion
wire
crimped
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.)
Expired - Fee Related
Application number
JP2008016603A
Other languages
Japanese (ja)
Other versions
JP2009176672A (en
Inventor
忠久 坂口
康路 桑山
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.)
Yazaki Corp
Original Assignee
Yazaki 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 Yazaki Corp filed Critical Yazaki Corp
Priority to JP2008016603A priority Critical patent/JP5030232B2/en
Priority to PCT/JP2009/051827 priority patent/WO2009096591A1/en
Publication of JP2009176672A publication Critical patent/JP2009176672A/en
Application granted granted Critical
Publication of JP5030232B2 publication Critical patent/JP5030232B2/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • H01R4/10—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
    • H01R4/188—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 having an uneven wire-receiving surface to improve the contact
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/03—Contact members characterised by the material, e.g. plating, or coating materials
    • 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

Landscapes

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

Description

本発明は、アルミニウム製またはアルミニウム合金製の複数の素線が撚り合わされた導体部を有するアルミ電線に圧着されるアルミ電線用圧着端子に関する。   The present invention relates to a crimp terminal for an aluminum wire that is crimped to an aluminum wire having a conductor portion in which a plurality of strands made of aluminum or aluminum alloy are twisted together.

自動車等の車両に配索されるワイヤハーネスには銅電線が一般に使用されている。そして、ワイヤハーネス同士、あるいはワイヤハーネスと車載機器との接続にあたり、ワイヤハーネスの銅電線には端子が取り付けられる。そして、この種の端子は、一般に圧着によって銅電線に取り付けられている。   Copper wires are generally used for wire harnesses routed in vehicles such as automobiles. And a terminal is attached to the copper electric wire of a wire harness in connection between wire harnesses or a wire harness and vehicle equipment. And this kind of terminal is generally attached to the copper electric wire by crimping.

銅電線に圧着される端子は、例えば銅合金等の導電性の板材を所定の形状に打ち出し、これを折り曲げ加工して形成され、典型的には断面略Ｕ字状に成形されたバレルを備えている。バレルは、銅製の複数の素線を撚り合わせてなる銅電線の導体部を抱え込み、導体部に加締め付けられる。それにより、銅電線と端子とが圧着される。   A terminal to be crimped to a copper electric wire is formed by punching a conductive plate material such as a copper alloy into a predetermined shape and bending it, and typically includes a barrel formed in a substantially U-shaped cross section. ing. The barrel holds a conductor portion of a copper electric wire formed by twisting a plurality of copper wires, and is crimped to the conductor portion. Thereby, a copper electric wire and a terminal are crimped | bonded.

ところで近年、銅資源の不足に加え、車両の軽量化やリサイクルの容易性を考慮して、アルミ電線が注目されている。しかしながら、アルミニウムは銅に比べて表面に形成される酸化皮膜が厚い。そのため、アルミ電線の導体部と端子のバレルとの間の接触抵抗は比較的高くなる傾向にある。   By the way, in recent years, aluminum wires have been attracting attention in consideration of the shortage of copper resources and the weight reduction of vehicles and the ease of recycling. However, aluminum has a thicker oxide film formed on the surface than copper. Therefore, the contact resistance between the conductor portion of the aluminum electric wire and the terminal barrel tends to be relatively high.

接触抵抗の低減について、バレルを導体部に強く加締め付けて導体部の圧縮率を高くする方法が知られている。これによれば、導体部を構成する各素線の酸化皮膜が破壊され、導体部とバレルとの間の接触抵抗が低減される。尚、本明細書において、導体部の圧縮率とは、圧着前の導体部の断面積に対する圧着後の導体部の断面積の比として規定される。   As a method for reducing contact resistance, a method is known in which a barrel is strongly swaged to a conductor portion to increase the compressibility of the conductor portion. According to this, the oxide film of each strand which comprises a conductor part is destroyed, and the contact resistance between a conductor part and a barrel is reduced. In the present specification, the compression ratio of the conductor portion is defined as the ratio of the cross-sectional area of the conductor portion after crimping to the cross-sectional area of the conductor portion before crimping.

しかしながら、導体部の圧縮率を高くすることに伴い導体部に作用する応力も高くなる。アルミニウムは銅に比べて機械的強度に劣り、アルミ電線では、導体部に過度の応力が作用すると、導体部とバレルとの圧着強度が著しく低下してしまう。   However, as the compressibility of the conductor portion increases, the stress acting on the conductor portion also increases. Aluminum is inferior in mechanical strength compared to copper, and in an aluminum electric wire, when excessive stress acts on the conductor portion, the crimping strength between the conductor portion and the barrel is significantly reduced.

接触抵抗の低減および圧着強度の確保のため、アルミ電線と端子との圧着に関し種々提案がなされている。例えば、導体部と接触するバレルの接触面に複数の凹溝を形成することが提案されている（例えば、特許文献１参照）。導体部が凹溝に食い込み、各素線の表面の酸化皮膜が破壊されて接触抵抗が低減され、また、導体部の抜けが防止される。また、バレルの接触面に導体部より軟質の粉末を分散させて、バレルの接触面と導体部とを凝着させるようにしたものも提案されている（例えば、特許文献２参照）。
特開２００７−１７３２１５号公報 特開平８−３２１３３０号公報 Various proposals have been made regarding crimping of an aluminum electric wire and a terminal in order to reduce contact resistance and secure crimping strength. For example, it has been proposed to form a plurality of concave grooves on the contact surface of the barrel that contacts the conductor portion (see, for example, Patent Document 1). A conductor part bites into a ditch | groove, the oxide film of the surface of each strand is destroyed, contact resistance is reduced, and the dropout of a conductor part is prevented. In addition, there has been proposed one in which soft powder is dispersed from the conductor portion on the contact surface of the barrel so that the contact surface of the barrel and the conductor portion are adhered (for example, see Patent Document 2).
JP 2007-173215 A JP-A-8-321330

バレルの接触面と導体部とを凝着をせる場合にも、各素線の表面の酸化被膜を破壊して、各素線に新生面を露出させる必要がある。バレルの接触面に凹溝を形成することにより各素線の表面の酸化被膜を破壊することができるが、酸化被膜の破壊は主として凹溝のエッジ部分で生じており、酸化被膜の破壊が十分ではない。そして、接触面に凹溝が形成された従来のバレルで酸化被膜を十分に破壊するためには、導体部の圧縮率を高くする必要があり、圧着強度の低下が問題となる。   Even when the contact surface of the barrel and the conductor are adhered, it is necessary to break the oxide film on the surface of each strand and expose the new surface to each strand. By forming a groove on the contact surface of the barrel, the oxide film on the surface of each strand can be destroyed. However, the oxide film is broken mainly at the edge of the groove, and the oxide film is sufficiently broken. is not. In order to sufficiently destroy the oxide film with a conventional barrel having a concave groove formed on the contact surface, it is necessary to increase the compressibility of the conductor portion, which causes a problem of a decrease in pressure bonding strength.

本発明は、上述した事情に鑑みてなされたものであり、アルミ電線の導体部と端子のバレルとの接触抵抗の低減および圧着強度の確保を両立させ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。   This invention is made | formed in view of the situation mentioned above, and provides the crimp terminal for aluminum electric wires which can make reduction of the contact resistance of the conductor part of an aluminum electric wire and the barrel of a terminal, and ensuring of crimping | compression-bonding strength compatible. For the purpose.

上記目的は、下記（１）〜（２）に記載のアルミ電線圧着端子により達成される。
（１）アルミニウム製またはアルミニウム合金製の複数の素線が撚り合わされた導体部を有するアルミ電線に圧着されるアルミ電線用圧着端子であって、前記導体部を抱え込んで該導体部に加締め付けられるバレルを備え、前記導体部と接触する前記バレルの接触面に、アルミニウムおよび前記アルミニウム合金に対して凝着作用を有する被膜が形成されており且つ、前記バレルが加締め付けられる前記導体部の圧着部分の軸方向と交差する方向に延びる少なくとも１つの溝部と、該少なくとも１つの溝部から前記導体部の前記圧着部分の先端側および基端側に向けてそれぞれ下り勾配となって延びる一組の斜面部と、が形成されていることを特徴とするアルミ電線用圧着端子。
（２）前記バレルの接触面に形成された前記被膜が錫めっき被膜であることを特徴とする（１）に記載のアルミ電線用圧着端子。 The said objective is achieved by the aluminum electric wire crimp terminal as described in following (1)-(2).
(1) A crimp terminal for an aluminum wire that is crimped to an aluminum wire having a conductor portion in which a plurality of strands made of aluminum or aluminum alloy are twisted together, and is clamped to the conductor portion while holding the conductor portion A crimping portion of the conductor portion, which is provided with a barrel, is formed with a coating having an adhesion action on aluminum and the aluminum alloy on a contact surface of the barrel that is in contact with the conductor portion, and the barrel is crimped And at least one groove portion extending in a direction intersecting the axial direction, and a pair of inclined surface portions extending downwardly from the at least one groove portion toward the distal end side and the proximal end side of the crimping portion of the conductor portion. And a crimp terminal for an aluminum electric wire.
(2) The crimp terminal for an aluminum electric wire according to (1), wherein the coating formed on the contact surface of the barrel is a tin plating coating.

上記（１）の構成のアルミ電線用圧着端子によれば、バレルが加締め付けられて圧縮された導体部は、溝部に食い込み、そこを基点に溝部の両側に伸ばされて溝部の両側に形成された斜面部を摺動する。そして、斜面部を摺動する際の摩擦によって、導体部を構成する各素線の表面の酸化被膜が破壊され、各素線に新生面が露出する。これにより、導体部の圧縮率を過度に高めることなく、各素線の酸化被膜を十分に破壊して新生面を露出させることができる。そして、バレルの接触面にはアルミニウムおよびアルミニウム合金に対して凝着作用を有する被膜が形成されており、各素線に露出した新生面と被膜との間で凝着が生じ、良好な接触抵抗および圧着強度を得ることができる。   According to the crimp terminal for an aluminum electric wire having the configuration of (1), the conductor portion compressed by the crimping of the barrel bites into the groove portion and is formed on both sides of the groove portion by extending to the both sides of the groove portion. Slide on the slope. And the oxide film of the surface of each strand which comprises a conductor part is destroyed by the friction at the time of sliding on a slope part, and a new surface is exposed to each strand. Thereby, the new surface can be exposed by sufficiently destroying the oxide film of each strand without excessively increasing the compressibility of the conductor portion. And the coating which has an adhesion action with respect to aluminum and aluminum alloy is formed in the contact surface of a barrel, adhesion arises between the new surface exposed to each strand, and a coating, good contact resistance and Crimp strength can be obtained.

本発明のアルミ電線用圧着端子によれば、アルミ電線の導体部と端子のバレルとの接触抵抗の低減および圧着強度の確保を両立させることができる。   According to the crimp terminal for an aluminum wire of the present invention, it is possible to reduce both the contact resistance between the conductor portion of the aluminum cable and the barrel of the terminal and to secure the crimp strength.

以下、本発明のアルミ電線用圧着端子の好適な実施形態を図面に基づいて詳細に説明する。図１は本発明のアルミ電線用圧着端子の一実施形態の斜視図、図２はアルミ電線に圧着された状態で示す図１の圧着端子の断面図、図３は図１の圧着端子の変形例の斜視図である。   Hereinafter, a preferred embodiment of a crimp terminal for an aluminum electric wire according to the present invention will be described in detail with reference to the drawings. 1 is a perspective view of an embodiment of a crimp terminal for an aluminum wire according to the present invention, FIG. 2 is a cross-sectional view of the crimp terminal of FIG. 1 shown in a state of being crimped to an aluminum wire, and FIG. 3 is a modification of the crimp terminal of FIG. It is a perspective view of an example.

図１に示すように、アルミ電線１は、アルミニウム製またはアルミニウム合金製の複数の素線３が撚り合わされた導体部２を有している。導体部２の外周は、絶縁材料で形成されたシース４で被覆されている。アルミ電線１は、その端末部において、所定の長さでシース４が除去されて導体部２が露出されている。アルミ電線１に圧着される端子１０は、この端末部に圧着される。尚、アルミニウム合金としては、アルミニウムと鉄との合金を例示することができる。アルミニウムと鉄との合金は、アルミニウム単体に比べて、強度（特に引っ張り強度）に優れ、好ましい。   As shown in FIG. 1, the aluminum electric wire 1 has a conductor portion 2 in which a plurality of strands 3 made of aluminum or aluminum alloy are twisted together. The outer periphery of the conductor portion 2 is covered with a sheath 4 formed of an insulating material. In the end portion of the aluminum electric wire 1, the sheath 4 is removed with a predetermined length, and the conductor portion 2 is exposed. The terminal 10 to be crimped to the aluminum electric wire 1 is crimped to this terminal portion. In addition, as an aluminum alloy, the alloy of aluminum and iron can be illustrated. An alloy of aluminum and iron is preferable because it is superior in strength (particularly tensile strength) as compared with aluminum alone.

端子１０は、その先端側に相手側端子（図示せず）との接続部１１が設けられ、その基端側にアルミ電線１に加締め付けられるバレル１２が設けられている。バレル１２には、その先端側にアルミ電線１の導体部２に加締め付けられるワイヤーバレル１３と、その基端側にアルミ電線１のシース４に加締め付けられるインシュレーションバレル１４とが設けられている。   The terminal 10 is provided with a connecting portion 11 with a mating terminal (not shown) on the distal end side, and a barrel 12 that is crimped to the aluminum electric wire 1 on the proximal end side. The barrel 12 is provided with a wire barrel 13 that is crimped to the conductor portion 2 of the aluminum electric wire 1 at its distal end side and an insulation barrel 14 that is crimped to the sheath 4 of the aluminum electric wire 1 at its proximal end side. .

ワイヤーバレル１３は、アルミ電線１の端末部に露出された導体部２が載置される底板部２０と、底板部２０上に載置された導体部２を両側から挟むように底板部２０に連設された一対の加締片２１とを備えており、断面略Ｕ字状に成形されている。ワイヤーバレル１３は、その内側に端末部の導体部２を抱え込み、この導体部２に加締め付けられる。   The wire barrel 13 is formed on the bottom plate portion 20 so as to sandwich the bottom plate portion 20 on which the conductor portion 2 exposed at the terminal portion of the aluminum electric wire 1 is placed and the conductor portion 2 placed on the bottom plate portion 20 from both sides. It has a pair of caulking pieces 21 provided in series, and is formed in a substantially U-shaped cross section. The wire barrel 13 holds the conductor portion 2 of the terminal portion inside thereof, and is crimped to the conductor portion 2.

インシュレーションバレル１４は、アルミ電線１の端末部に残るシース４が載置される底板部２２と、底板部２２に載置されたシース４を両側から挟むように底板部２２に連設された一対の加締片２３とを備えており、ワイヤーバレル１３と同様に断面略Ｕ字状に成形されている。インシュレーションバレル１４は、その内側に端末部のシース４を抱え込み、このシース４に加締め付けられる。尚、インシュレーションバレル１４の底板部２２は、ワイヤーバレル１３の底板部２０に連設されている。   The insulation barrel 14 is connected to the bottom plate portion 22 so as to sandwich the sheath 4 placed on the bottom plate portion 22 from both sides, and the bottom plate portion 22 on which the sheath 4 remaining at the terminal portion of the aluminum electric wire 1 is placed. A pair of caulking pieces 23 are provided, and the wire barrel 13 is formed in a substantially U-shaped cross section. The insulation barrel 14 holds the sheath 4 at the end portion inside, and is crimped to the sheath 4. The bottom plate portion 22 of the insulation barrel 14 is connected to the bottom plate portion 20 of the wire barrel 13.

そして、端子１０は、端末部の導体部２を抱え込んだワイヤーバレル１３がこの導体部２に加締め付けられ、また、端末部のシース４を抱え込んだインシュレーションバレル１４がこのシース４に加締め付けられて、アルミ電線１に圧着される。   In the terminal 10, the wire barrel 13 holding the terminal conductor portion 2 is crimped to the conductor portion 2, and the insulation barrel 14 holding the terminal sheath 4 is crimped to the sheath 4. And crimped to the aluminum electric wire 1.

ワイヤーバレル１３の内表面、即ち、導体部２と接触するワイヤーバレル１３の接触面には、ワイヤーバレル１３が加締め付けられる導体部２の圧着部分の軸方向と交差する方向に延びる少なくとも１つの溝部２４と、各溝部２４から導体部２の圧着部分の先端側および基端側に向けてそれぞれ下り勾配となって延びる一組の斜面部２５ａ、２５ｂとが形成されている。これらの溝部２４および斜面部２５ａ、２５ｂは、底板部２０の接触面に凹設されている。   On the inner surface of the wire barrel 13, that is, the contact surface of the wire barrel 13 that contacts the conductor portion 2, at least one groove portion extending in a direction intersecting the axial direction of the crimp portion of the conductor portion 2 to which the wire barrel 13 is crimped. 24 and a pair of inclined surface portions 25a, 25b extending downwardly from each groove portion 24 toward the distal end side and the proximal end side of the crimped portion of the conductor portion 2, respectively. The groove portion 24 and the slope portions 25 a and 25 b are recessed in the contact surface of the bottom plate portion 20.

尚、図１に示すものは、溝部２４が、導体部２の圧着部分の軸方向と垂直に交差する方向に延びているが、傾斜して交差する方向に延びていてもよい。また、図１に示すものは、溝部２４および斜面部２５ａ、２５ｂが、ワイヤーバレル１３の底板部２０の範囲内で設けられているが、底板部２０および一対の加締片２１に亘って設けられていてもよい。また、図１に示すものは、溝部２４が１つであるが、溝部２４は複数あってもよい。   In FIG. 1, the groove 24 extends in a direction perpendicular to the axial direction of the crimped portion of the conductor portion 2, but may extend in a direction intersecting with an inclination. 1, the groove 24 and the slopes 25a and 25b are provided within the range of the bottom plate 20 of the wire barrel 13, but are provided over the bottom plate 20 and the pair of crimping pieces 21. It may be done. 1 has only one groove 24, but there may be a plurality of grooves 24.

そして、少なくともワイヤーバレル１３の接触面には、アルミニウムおよびアルミニウム合金に対して凝着作用を有する被膜が形成されている。このような被膜は、例えばアルミニウムやアルミニウム合金よりも軟質の金属からなる被膜であり、好ましくは錫めっき被膜である。また、被膜の厚さは、好ましくは１．５μｍ以上４．０μｍ以下である。   Then, at least on the contact surface of the wire barrel 13, a film having an adhesion action on aluminum and aluminum alloy is formed. Such a coating is, for example, a coating made of a metal softer than aluminum or an aluminum alloy, and is preferably a tin plating coating. The thickness of the coating is preferably 1.5 μm or more and 4.0 μm or less.

以上の構成を備えた端子１０は、例えば表面に錫めっきが施された銅合金等の導電性材料からなる一枚の板材を所定の形状に打ち抜き、これを折り曲げ加工して形成される。   The terminal 10 having the above configuration is formed, for example, by punching a single plate material made of a conductive material such as a copper alloy whose surface is tin-plated into a predetermined shape and bending it.

図２に示すように、ワイヤーバレル１３が導体部２に加締め付けられることにより、導体部２は圧縮され、導体部２を構成する各素線３はワイヤーバレル１３の接触面に設けられた溝部２４に食い込む。そして、各素線３は、溝部２４に食い込んだ部位を基点として、軸方向に溝部２４の両側に伸ばされて溝部２４の両側に形成された斜面部２５ａ、２５ｂを摺動する。   As shown in FIG. 2, when the wire barrel 13 is crimped to the conductor portion 2, the conductor portion 2 is compressed, and each strand 3 constituting the conductor portion 2 is a groove portion provided on the contact surface of the wire barrel 13. Cut into 24. Each element wire 3 extends on both sides of the groove portion 24 in the axial direction and slides on the slope portions 25 a and 25 b formed on both sides of the groove portion 24, with the portion biting into the groove portion 24 as a base point.

斜面部２５ａ、２５ｂを摺動する各素線３の部位は、斜面部２５ａ、２５ｂとの間の摩擦によって表面の酸化被膜が破壊され、その部位に新生面、即ち、アルミニウムまたはアルミニウム合金の素地が露出する。   The portion of each strand 3 that slides on the slope portions 25a, 25b has its surface oxidized film destroyed by friction with the slope portions 25a, 25b, and a new surface, that is, an aluminum or aluminum alloy substrate is formed on the portion. Exposed.

そして、ワイヤーバレル１３の接触面に形成された被膜と各素線３に露出した新生面との間には面圧下での摩擦が生じ、両者の間で凝着が生じる。凝着により、ワイヤーバレル１３の被膜と各素線３の新生面とが原子レベルで結合する。それにより、良好な接触抵抗および結合強度が得られる。   And the friction under surface pressure arises between the film formed in the contact surface of the wire barrel 13, and the new surface exposed to each strand 3, and adhesion arises between both. By the adhesion, the coating of the wire barrel 13 and the new surface of each strand 3 are bonded at the atomic level. Thereby, good contact resistance and bond strength are obtained.

このように、本実施形態のアルミ電線用圧着端子１０によれば、ワイヤーバレル１３が加締め付けられて圧縮された導体部２は、溝部２４に食い込み、そこを基点に溝部２４の両側に伸ばされて、溝部２４の両側に形成された斜面部２５ａ、２５ｂを摺動する。そして、斜面部２５ａ、２５ｂを摺動する際の摩擦によって、導体部２を構成する各素線３の表面の酸化被膜が破壊され、各素線３に新生面が露出する。これにより、導体部２の圧縮率を過度に高めることなく、各素線３の酸化被膜を十分に破壊して新生面を露出させることができる。そして、ワイヤーバレル１３の接触面にはアルミニウムおよびアルミニウム合金に対して凝着作用を有する被膜が形成されており、各素線３に露出した新生面と被膜との間で凝着が生じ、良好な接触抵抗および圧着強度を得ることができる。   As described above, according to the crimp terminal 10 for an aluminum electric wire of the present embodiment, the conductor part 2 compressed by the crimping of the wire barrel 13 bites into the groove part 24 and is extended to both sides of the groove part 24 from that point. Then, it slides on the slope portions 25a, 25b formed on both sides of the groove portion 24. And the oxide film of the surface of each strand 3 which comprises the conductor part 2 is destroyed by the friction at the time of sliding the slope parts 25a and 25b, and a new surface is exposed to each strand 3. FIG. Thereby, the oxide film of each strand 3 can be fully destroyed and the new surface can be exposed without excessively increasing the compressibility of the conductor portion 2. And the coating which has an adhesion effect with respect to aluminum and aluminum alloy is formed in the contact surface of the wire barrel 13, and adhesion arises between the new surface exposed to each strand 3, and a coating, and it is favorable Contact resistance and pressure bonding strength can be obtained.

尚、本発明は、上述した実施形態に限定されるものではなく、適宜、変形、改良、等が可能である。その他、上述した実施形態における各構成要素の形状、寸法、数値、形態、数、配置箇所、等は本発明を達成できるものであれば任意であり、限定されない。   In addition, this invention is not limited to embodiment mentioned above, A deformation | transformation, improvement, etc. are possible suitably. In addition, the shape, size, numerical value, form, number, arrangement location, and the like of each component in the above-described embodiment are arbitrary and not limited as long as the present invention can be achieved.

例えば図３に示すように、溝部２４および斜面部２５ａ、２５ｂを、全体としてワイヤーバレル１３の底板部２０の接触面から突出して設けるようにしてもよい。   For example, as shown in FIG. 3, the groove portion 24 and the slope portions 25 a and 25 b may be provided so as to protrude from the contact surface of the bottom plate portion 20 of the wire barrel 13 as a whole.

本発明のアルミ電線用圧着端子の一実施形態の斜視図である。It is a perspective view of one embodiment of the crimp terminal for aluminum electric wires of the present invention. アルミ電線に圧着された状態で示す図１の圧着端子の断面図である。It is sectional drawing of the crimp terminal of FIG. 1 shown in the state crimped | bonded to the aluminum electric wire. 図１の圧着端子の変形例の斜視図である。It is a perspective view of the modification of the crimp terminal of FIG.

符号の説明Explanation of symbols

１ アルミ電線
２ 導体部
３ 素線
１０ 端子
１３ ワイヤーバレル（バレル）
２４ 溝部
２５ａ 斜面部
２５ｂ 斜面部 DESCRIPTION OF SYMBOLS 1 Aluminum electric wire 2 Conductor part 3 Elementary wire 10 Terminal 13 Wire barrel (barrel)
24 Groove 25a Slope 25b Slope

Claims (2)

アルミニウム製またはアルミニウム合金製の複数の素線が撚り合わされた導体部を有するアルミ電線に圧着されるアルミ電線用圧着端子であって、
前記導体部を抱え込んで該導体部に加締め付けられるバレルを備え、
前記導体部と接触する前記バレルの接触面に、アルミニウムおよび前記アルミニウム合金に対して凝着作用を有する被膜が形成されており且つ、前記バレルが加締め付けられる前記導体部の圧着部分の軸方向と交差する方向に延びる少なくとも１つの溝部と、該少なくとも１つの溝部から前記導体部の前記圧着部分の先端側および基端側に向けてそれぞれ下り勾配となって延びる一組の斜面部と、が形成されていることを特徴とするアルミ電線用圧着端子。 A crimp terminal for an aluminum wire that is crimped to an aluminum wire having a conductor portion in which a plurality of strands made of aluminum or an aluminum alloy are twisted together,
A barrel that holds the conductor portion and is crimped to the conductor portion,
On the contact surface of the barrel that comes into contact with the conductor portion, a coating having an adhesion action on aluminum and the aluminum alloy is formed, and the axial direction of the crimp portion of the conductor portion to which the barrel is crimped At least one groove portion extending in the intersecting direction and a pair of slope portions extending downwardly from the at least one groove portion toward the distal end side and the proximal end side of the crimping portion of the conductor portion are formed. A crimp terminal for an aluminum electric wire characterized by being made. 前記バレルの接触面に形成された前記被膜が錫めっき被膜であることを特徴とする請求項１に記載のアルミ電線用圧着端子。   The crimp terminal for an aluminum electric wire according to claim 1, wherein the coating formed on the contact surface of the barrel is a tin plating coating.
JP2008016603A 2008-01-28 2008-01-28 Crimp terminal for aluminum wire Expired - Fee Related JP5030232B2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2008016603A JP5030232B2 (en) 2008-01-28 2008-01-28 Crimp terminal for aluminum wire
PCT/JP2009/051827 WO2009096591A1 (en) 2008-01-28 2009-01-28 Crimp terminal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2008016603A JP5030232B2 (en) 2008-01-28 2008-01-28 Crimp terminal for aluminum wire

Publications (2)

Publication Number Publication Date
JP2009176672A JP2009176672A (en) 2009-08-06
JP5030232B2 true JP5030232B2 (en) 2012-09-19

Family

ID=40512189

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2008016603A Expired - Fee Related JP5030232B2 (en) 2008-01-28 2008-01-28 Crimp terminal for aluminum wire

Country Status (2)

Country Link
JP (1) JP5030232B2 (en)
WO (1) WO2009096591A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011096451A (en) * 2009-10-28 2011-05-12 Yazaki Corp Crimping terminal
JP5687955B2 (en) * 2011-05-20 2015-03-25 矢崎総業株式会社 Structure and manufacturing method of crimp connection part of aluminum wire and metal terminal
JP5569763B2 (en) * 2013-04-12 2014-08-13 株式会社オートネットワーク技術研究所 Terminal fittings and electric wires with terminal fittings
JP2015082419A (en) * 2013-10-23 2015-04-27 矢崎総業株式会社 Crimp terminal
GB2519587A (en) 2013-10-28 2015-04-29 Barco Nv Tiled Display and method for assembling same
JP2015090742A (en) * 2013-11-05 2015-05-11 矢崎総業株式会社 Crimp terminal
JP6371333B2 (en) 2016-05-20 2018-08-08 株式会社不二機販 Aluminum adhesion prevention method

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3735331A (en) * 1972-04-19 1973-05-22 Ark Les Switch Corp Electrical connector
JP3824809B2 (en) * 1999-06-16 2006-09-20 古河電気工業株式会社 Automotive power cable and terminal for the power cable
JP2003249284A (en) * 2002-02-25 2003-09-05 Auto Network Gijutsu Kenkyusho:Kk Crimp terminal for aluminum wire
JP4550791B2 (en) * 2005-11-24 2010-09-22 古河電気工業株式会社 Aluminum stranded wire crimp terminal and aluminum stranded wire terminal structure to which the crimp terminal is connected

Also Published As

Publication number Publication date
WO2009096591A1 (en) 2009-08-06
JP2009176672A (en) 2009-08-06

Similar Documents

Publication Publication Date Title
JP5078567B2 (en) Crimp terminal for aluminum wire
JP5024948B2 (en) Crimp structure of aluminum wire and terminal
JP5030232B2 (en) Crimp terminal for aluminum wire
JP2009087848A (en) Crimp terminal for aluminum wire and method of crimping terminal of aluminum wire
WO2009081798A1 (en) Method for crimping terminal to aluminum cable
JP2010103012A (en) Crimping terminal for aluminum wire and method for manufacturing crimping terminal for aluminum wire
JP5634787B2 (en) Crimp terminal
CN107799910A (en) Equipped with the electric wire of terminal
JP2009123622A (en) Crimp terminal for aluminum wire
JP5225794B2 (en) Crimp structure of crimp terminal
JP5078566B2 (en) Crimp terminal for aluminum wire
JP5119532B2 (en) Crimp terminal for aluminum wire
JP2009123623A (en) Crimp structure of aluminum wire and terminal
JP5038875B2 (en) Wire bundle with connector with waterproof function
JP5116512B2 (en) Crimping method using crimp terminals
JP5127045B2 (en) Crimp structure of wire and terminal
JP2009176537A (en) Crimp structure of aluminum wire and terminal
JP5041537B2 (en) Connection structure of crimp terminal to covered wire
JP4268006B2 (en) Terminal crimping structure to aluminum wire and method of manufacturing aluminum wire with terminal
JP4948346B2 (en) Terminal crimping tool for aluminum wires
JP2009283287A (en) Crimp terminal for aluminum wire
JP5290812B2 (en) Crimp terminal for high strength thin wire
CN110707443B (en) wire with terminals
JP5757226B2 (en) Terminal and electric wire with terminal
JP2010044913A (en) Crimp connection terminal

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20101130

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20120529

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20120622

R150 Certificate of patent or registration of utility model

Ref document number: 5030232

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20150706

Year of fee payment: 3

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

LAPS Cancellation because of no payment of annual fees