JP2012043681A - Shield wire terminal structure and terminal processing method - Google Patents

Shield wire terminal structure and terminal processing method Download PDF

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JP2012043681A
JP2012043681A JP2010184782A JP2010184782A JP2012043681A JP 2012043681 A JP2012043681 A JP 2012043681A JP 2010184782 A JP2010184782 A JP 2010184782A JP 2010184782 A JP2010184782 A JP 2010184782A JP 2012043681 A JP2012043681 A JP 2012043681A
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shield conductor
electric wire
insulating
tip
wire
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JP5826995B2 (en
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Yutaka Terasaka
豊 寺坂
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Yazaki Corp
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Yazaki Corp
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Priority to JP2010184782A priority Critical patent/JP5826995B2/en
Priority to PCT/JP2011/067344 priority patent/WO2012023403A1/en
Priority to RU2013112318/07A priority patent/RU2524390C1/en
Priority to CN201180040400.XA priority patent/CN103081250B/en
Priority to BR112013003475A priority patent/BR112013003475A2/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
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding  
    • H01R13/658—High frequency shielding arrangements, e.g. against EMI [Electro-Magnetic Interference] or EMP [Electro-Magnetic Pulse]
    • H01R13/6591—Specific features or arrangements of connection of shield to conductive members
    • H01R13/65912—Specific features or arrangements of connection of shield to conductive members for shielded multiconductor cable
    • H01R13/65914—Connection of shield to additional grounding conductors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/28—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for wire processing before connecting to contact members, not provided for in groups H01R43/02 - H01R43/26

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  • Insulated Conductors (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)

Abstract

PROBLEM TO BE SOLVED: To prevent unexpected disassembling of a spirally wound shield conductor such as a braided wire.SOLUTION: In a shield electric wire 1, a belt-like shield conductor 3 is spirally wound outside an electric wire 2, and an insulation envelope 4 is deposited outside the shield conductor. A tip side 5 of the shield conductor is linearly positioned in an electric wire axial direction along an inner face 4b of the insulation envelope, and the tip side and sides 6 and 7 on both axial ends of the shield conductor are diagonally crossed with each other. A tip side 4a of the insulation envelope 4a is peeled, and a tip side 3a of the shield conductor 3 is exposed, so that at least an obtuse crossing part 8 of the side 6 and the tip side 5 on a side opposite to a tip 2a of the electric wire 2 is brought into contact with the inner face 4b of the insulation envelope 4.

Description

本発明は、帯状の編組線等のシールド導体を螺旋状に巻回した状態でアース側に接続させるシールド電線の端末構造及び端末処理方法に関するものである。   The present invention relates to a shield wire terminal structure and a terminal processing method for connecting to a ground side in a state where a shield conductor such as a strip-shaped braided wire is spirally wound.

図３は、従来のシールド電線の端末構造の一形態を示すものである（特許文献１参照）。   FIG. 3 shows an embodiment of a conventional shield wire terminal structure (see Patent Document 1).

この端末構造は、シールド電線４１の絶縁外皮（シース）４２にアース線４３の基端部を押し付けた状態で、超音波加振で絶縁外皮４２を溶かすと共に、絶縁外皮４２の内側の導電金属製の編組線（シールド導体）４４にアース線４３の基端部を超音波溶着して、アース線４３の先端の端子４５をアース側に接続させるものである。編組線４４の内側に絶縁内皮４６が位置し、絶縁内皮４６の内側の芯線４７に端子４８が圧着接続されて、主回路に接続される。   In this terminal structure, the insulating sheath 42 is melted by ultrasonic vibration in a state where the base end portion of the ground wire 43 is pressed against the insulating sheath (sheath) 42 of the shielded electric wire 41, and the conductive metal inside the insulating sheath 42 is made. The base end portion of the ground wire 43 is ultrasonically welded to the braided wire (shield conductor) 44, and the terminal 45 at the tip of the ground wire 43 is connected to the ground side. The insulating endothelium 46 is positioned inside the braided wire 44, and a terminal 48 is crimped to the core wire 47 inside the insulating endothelium 46 and connected to the main circuit.

図４は、従来のシールド電線の端末構造の他の形態を示すものである（特許文献２参照）。   FIG. 4 shows another embodiment of a conventional shield wire terminal structure (see Patent Document 2).

この端末構造は、複数本の被覆電線５１とアース導体５２の外側に導電布（シールド導体）５３を螺旋状に巻回し、螺旋状の導電布５３の外側に絶縁外皮５４を装着した状態から、図４の矢印の如く絶縁外皮５４の先端部５４ａを剥ぎ取り、露出した導電布５３を解き出し、各被覆電線５１の先端の露出芯線（図示せず）に端子（図示せず）を接続してコネクタハウジング（図示せず）内に収容し、巻き解いた導電布５３を再度巻き直して、その上から、剥ぎ取った絶縁外皮５４ａを再度被せ付け、アース導体５２を絶縁外皮５４の外部に突出させるものである。   In this terminal structure, a conductive cloth (shield conductor) 53 is spirally wound around the outer sides of the plurality of covered electric wires 51 and the ground conductor 52, and the insulating outer skin 54 is attached to the outer side of the spiral conductive cloth 53. As shown by the arrows in FIG. 4, the tip 54 a of the insulating sheath 54 is peeled off, the exposed conductive cloth 53 is unwound, and a terminal (not shown) is connected to the exposed core wire (not shown) at the tip of each covered wire 51. Then, the conductive cloth 53 that has been unwound and accommodated in the connector housing (not shown) is rewound again, and the insulation sheath 54 a that has been peeled off is applied again, and the ground conductor 52 is placed outside the insulation sheath 54. It is something to project.

従来のシールド電線の端末構造のその他の形態として、例えば特許文献３には、同軸ケーブルの内部導体の外側に絶縁内皮を配し、絶縁内皮の外側に編組線又は金属箔等のシールド導体を配し、シールド導体の外側に複数本の撚り線導体（外部導体層）を螺旋状に配し、外部導体層の外側に絶縁外皮を配したことが記載され、特許文献４には、芯体の外周にアルミや銅等の金属箔（シールド導体）を螺旋状に巻付け、金属箔の外周に熱収縮チューブを装着し、芯体を抜き取り、金属箔の端部を解いて機器のプリント基板に加締め接続することが記載されている。   As another form of the conventional terminal structure of a shielded electric wire, for example, in Patent Document 3, an insulating inner skin is arranged outside the inner conductor of the coaxial cable, and a shield conductor such as a braided wire or a metal foil is arranged outside the insulating inner skin. In addition, it is described that a plurality of stranded conductors (outer conductor layers) are arranged in a spiral shape on the outside of the shield conductor, and an insulating sheath is arranged on the outside of the outer conductor layer. A metal foil (shield conductor) such as aluminum or copper is spirally wound around the outer periphery, a heat shrink tube is attached to the outer periphery of the metal foil, the core body is pulled out, and the end of the metal foil is unwound to the printed circuit board of the device It is described that a caulking connection is made.

特開平１１−１３５１６７号公報（図１）JP-A-11-135167 (FIG. 1) 特開２００７−１９４０８４号公報（図４〜図９）JP 2007-194084 A (FIGS. 4 to 9) 特開２００７−２５０４２１号公報（図１）JP 2007-250421 A (FIG. 1) 特開２００４−１５８６１８号公報（図３，図９）JP 2004-158618 A (FIGS. 3 and 9)

上記図３（特許文献１）のシールド電線の端末構造にあっては、編組線（シールド導体）４４を露出させるための絶縁外皮４２の皮剥き作業が不要となる反面、超音波溶着機といった大がかりな装置が必要である。また、上記図４（特許文献２）や特許文献４のシールド電線の端末構造にあっては、絶縁外皮５４の皮剥きが必要であるが、例えば特許文献３のシールド導体の露出作業に較べて、螺旋状のシールド導体５３を繰り出して直線的に伸ばす作業が容易である。   In the terminal structure of the shielded electric wire shown in FIG. 3 (Patent Document 1), it is not necessary to peel off the insulating outer sheath 42 for exposing the braided wire (shield conductor) 44, but an ultrasonic welding machine is large. Equipment is required. Moreover, in the terminal structure of the shielded electric wire of FIG. 4 (Patent Document 2) and Patent Document 4, it is necessary to peel off the insulating outer sheath 54. For example, as compared with the exposure work of the shield conductor of Patent Document 3 The work of drawing out the spiral shield conductor 53 and extending it linearly is easy.

しかしながら、上記図４（特許文献２）や特許文献４のシールド電線の端末構造においては、絶縁外皮５４を皮剥きする前や、絶縁外皮５４を皮剥きした後に、作業者の意図に反して螺旋状のシールド導体５３が自然に解き出されて、シールド導体５３の露出量に歯止めが利かなくなり（シールド導体５３が必要な露出長さを超えて過剰に露出してしまい）、その場合には、シールド導体５３を必要な露出長さまで巻き戻す作業を必要としたり、あるいは長いままシールド導体５３をアース側に接続し、シールド導体５３の弛み部分が外部と干渉ないし引っ掛かって損傷したり、あるいは過剰に露出した分、シールド電線５５のシールド（電磁遮蔽）性が低下するといった懸念があった。   However, in the terminal structure of the shielded electric wire shown in FIG. 4 (Patent Document 2) and Patent Document 4, before the insulating outer skin 54 is peeled off or after the insulating outer skin 54 is peeled off, it is spiraled against the operator's intention. When the shield shield 53 is unraveled naturally, the amount of exposure of the shield conductor 53 cannot be stopped (the shield conductor 53 is excessively exposed beyond the necessary exposure length). It is necessary to rewind the shield conductor 53 to a necessary exposed length, or the shield conductor 53 is connected to the ground side while it is long, and the slack portion of the shield conductor 53 is damaged or interfered with the outside, or excessively damaged. There is a concern that the shielding (electromagnetic shielding) property of the shielded electric wire 55 is lowered by the amount exposed to the wire.

本発明は、上記した点に鑑み、編組線等のシールド導体を螺旋状に巻回して、シールド導体の繰り出しを容易化したシールド電線において、絶縁外皮の皮剥き前に、螺旋状のシールド導体の不用意な解き出しを防ぐことができるシールド電線の端末構造と、絶縁外皮の皮剥き後においても、螺旋状のシールド導体の不用意な解き出しを防ぐことができるシールド電線の端末構造とシールド電線の端末処理方法を提供することを目的とする。   In view of the above points, the present invention provides a shielded wire in which a shield conductor such as a braided wire is wound in a spiral shape to facilitate the extension of the shield conductor. Shielded wire end structure that can prevent unintentional unwinding, and shielded wire end structure and shielded wire that can prevent unintentional unwinding of the spiral shield conductor even after the insulation sheath is peeled off An object of the present invention is to provide a terminal processing method.

上記目的を達成するために、本発明の請求項１に係るシールド電線の端末構造は、電線の外側に帯状のシールド導体が螺旋状に巻回され、該シールド導体の外側に絶縁外皮が被着されたシールド電線において、該シールド導体の先端辺部が該絶縁外皮の内面に沿って電線軸方向に直線状に位置し、該先端辺部と該シールド導体の幅方向両側の辺部とが傾斜状に交差したことを特徴とする。   In order to achieve the above object, the shield wire terminal structure according to claim 1 of the present invention is such that a strip-shaped shield conductor is spirally wound around the outside of the wire, and an insulating sheath is attached to the outside of the shield conductor. In the shielded electric wire, the tip side of the shield conductor is positioned linearly in the wire axial direction along the inner surface of the insulation sheath, and the tip side and the sides on both sides in the width direction of the shield conductor are inclined. It is characterized by crossing in a shape.

上記構成により、絶縁外皮の皮剥き前において、シールド導体の先端辺部が絶縁外皮と電線軸方向に平行に位置し、先端辺部が絶縁外皮の内面に線接触ないし面接触で当接して、高い摺動摩擦抵抗を発揮する。これにより、絶縁外皮の皮剥き前における絶縁外皮の端部からのシールド導体の先端部の不用意な解き出しが防止される。シールド導体は編組線や金属箔等である。   With the above configuration, before peeling off the insulating sheath, the tip side of the shield conductor is positioned parallel to the insulating sheath and the wire axial direction, and the tip side is in contact with the inner surface of the insulating skin by line contact or surface contact, High sliding friction resistance is demonstrated. Thereby, inadvertent unraveling of the tip end portion of the shield conductor from the end portion of the insulating skin before peeling off the insulating skin is prevented. The shield conductor is a braided wire or a metal foil.

請求項２に係るシールド電線の端末構造は、請求項１記載のシールド電線の端末構造において、前記絶縁外皮の先端側が皮剥きされ、前記シールド導体の先端側が露出し、前記電線の先端とは反対側の一側の前記辺部と前記先端辺部との鈍角的な少なくとも交差部が前記絶縁外皮の内面に当接したことを特徴とする。   The terminal structure of the shielded electric wire according to claim 2 is the terminal structure of the shielded electric wire according to claim 1, wherein the tip end side of the insulating sheath is peeled off, the tip end side of the shield conductor is exposed, and is opposite to the tip end of the electric wire. At least an obtuse crossing part between the side part on one side and the tip side part is in contact with the inner surface of the insulating skin.

上記構成により、絶縁外皮の皮剥き後において、シールド導体の先端辺部の少なくとも一側の交差部すなわち角部が絶縁外皮の切断先端の手前において絶縁外皮の内面に当接して引っ掛かりを生じ、これによる摩擦抵抗で絶縁外皮の切断先端からのシールド導体の不用意な解き出しが防止される。   With the above configuration, after the insulation skin is peeled off, at least one side of the shield conductor's tip side, that is, the corner, abuts against the inner surface of the insulation skin before the cutting tip of the insulation skin, causing a catch. Inadvertent unwinding of the shield conductor from the cutting tip of the insulating outer skin is prevented by the frictional resistance caused by.

請求項３に係るシールド電線の端末処理方法は、電線の外側に帯状のシールド導体を螺旋状に巻回し、該シールド導体の外側に絶縁外皮を被着し、該絶縁外皮の先端側を皮剥きし、該シールド導体の先端側を露出させるシールド電線の端末処理方法であって、該シールド導体の先端辺部が該絶縁外皮の内面に沿って電線軸方向に直線状に位置し、該先端辺部と該シールド導体の幅方向両側の辺部とが傾斜状に交差するように該先端辺部を切断形成し、該電線の先端とは反対側の一側の該辺部と該先端辺部との鈍角的な少なくとも交差部が該絶縁外皮の内面に当接するように、該絶縁外皮の先端側を皮剥きすることを特徴とする。   According to a third aspect of the present invention, there is provided a shield wire terminal treatment method in which a strip-shaped shield conductor is spirally wound around an outer side of an electric wire, an insulating skin is attached to the outer side of the shield conductor, and a tip side of the insulating skin is peeled off. And a shield wire end treatment method for exposing the tip end side of the shield conductor, wherein the tip side of the shield conductor is linearly positioned along the inner surface of the insulating sheath in the direction of the wire axis. And cutting the tip side so that the sides of the shield conductor and the sides on the width direction of the shield conductor intersect with each other in an inclined manner, and the side on one side opposite to the tip of the wire and the tip side The front end side of the insulating skin is peeled off so that at least the obtuse intersection with the inner surface of the insulating skin contacts the inner surface of the insulating skin.

上記構成により、絶縁外皮の皮剥き後において、シールド導体の先端辺部の少なくとも一側の交差部すなわち角部が絶縁外皮の切断先端の手前において絶縁外皮の内面に当接して引っ掛かりを生じ、これによる摩擦抵抗で絶縁外皮の切断先端からのシールド導体の不用意な解き出しが防止される。   With the above configuration, after the insulation skin is peeled off, at least one side of the shield conductor's tip side, that is, the corner, abuts against the inner surface of the insulation skin before the cutting tip of the insulation skin, causing a catch. Inadvertent unwinding of the shield conductor from the cutting tip of the insulating outer skin is prevented by the frictional resistance caused by.

請求項１記載の発明によれば、絶縁外皮の皮剥き前において、シールド導体の先端辺部を絶縁外皮の内面に線接触ないし面接触で当接させることで、高い摺動摩擦抵抗を発揮させて、シールド導体の不用意な解き出しを防止することができる。これにより、不用意に解き出されたシールド導体と外部との干渉等によるシールド導体の傷付きや破損等を防止することができると共に、シールド導体を巻き戻す面倒な作業を解消することができる。   According to the first aspect of the present invention, the front side of the shield conductor is brought into contact with the inner surface of the insulating skin by line contact or surface contact before peeling off the insulating skin, thereby exhibiting high sliding friction resistance. Inadvertent unwinding of the shield conductor can be prevented. As a result, the shield conductor can be prevented from being damaged or damaged due to interference between the shield conductor unintentionally uncovered and the outside, and the troublesome work of unwinding the shield conductor can be eliminated.

請求項２記載の発明によれば、絶縁外皮の皮剥き後において、シールド導体の先端辺部の一側の交差部を絶縁外皮の内面に引っ掛けるように当接させることで、高い摺動摩擦抵抗を発揮させて、シールド導体の不用意な解き出しを防止することができる。これにより、不用意に解き出されたシールド導体を巻き戻す面倒な作業を解消することができると共に、シールド導体を規定の長さで解き出して、機器や車体等のアース側に有害な弛み等なく作業性良く安全にアース接続することができる。   According to the second aspect of the present invention, after the insulation skin is peeled, a high sliding frictional resistance can be obtained by bringing the crossing portion on one side of the tip side of the shield conductor into contact with the inner surface of the insulation skin. This makes it possible to prevent inadvertent unwinding of the shield conductor. As a result, the troublesome work of unwinding the shield conductor that has been unintentionally unwound can be eliminated, and the shield conductor can be unwound at a specified length, causing harmful slack to the ground side of equipment, vehicle bodies, etc. It can be connected to the earth safely with good workability.

請求項３記載の発明によれば、絶縁外皮の皮剥き後において、シールド導体の先端辺部の一側の交差部を絶縁外皮の内面に引っ掛けるように当接させることで、高い摺動摩擦抵抗を発揮させて、シールド導体の不用意な解き出しを防止することができる。これにより、不用意に解き出されたシールド導体を巻き戻す面倒な作業を解消することができると共に、シールド導体を規定の長さで解き出して、機器や車体等のアース側に有害な弛み等なく作業性良く安全にアース接続することができる。   According to the third aspect of the present invention, after the insulation skin is peeled off, a high sliding frictional resistance can be obtained by bringing the intersection portion on one side of the tip side of the shield conductor into contact with the inner surface of the insulation skin. This makes it possible to prevent inadvertent unwinding of the shield conductor. As a result, the troublesome work of unwinding the shield conductor that has been unintentionally unwound can be eliminated, and the shield conductor can be unwound at a specified length, causing harmful slack to the ground side of equipment, vehicle bodies, etc. It can be connected to the earth safely with good workability.

本発明に係るシールド電線の端末構造及び端末処理方法の一実施形態を示す断面図である。It is sectional drawing which shows one Embodiment of the terminal structure and terminal processing method of the shielded wire which concern on this invention. 同じくシールド電線の端末構造及び端末処理方法における一使用例を示す正面図である。It is a front view showing one example of use in the terminal structure and terminal processing method of a shield electric wire similarly. 従来のシールド電線の端末構造の一形態を示す斜視図である。It is a perspective view which shows one form of the terminal structure of the conventional shielded electric wire. 従来のシールド電線の端末構造の他の形態を示す正面図である。It is a front view which shows the other form of the terminal structure of the conventional shielded electric wire.

図１〜図２は、本発明に係るシールド電線の端末構造及び端末処理方法の一実施形態を示すものである。   1 to 2 show an embodiment of a shield wire terminal structure and a terminal processing method according to the present invention.

図１の如く、このシールド電線の端末構造は、複数本（本例で二本）の信号線（電線）２の外側に導電金属製の編組線（シールド導体）３を帯状の平編み線とした状態で螺旋状に巻回し、螺旋状の編組線３の外側に絶縁外皮（シース）４を被せたシールド電線１において、絶縁外皮４の先端側の端末部４ａを皮剥き除去した状態で、螺旋状の編組線３の先端辺部５が絶縁外皮４の内面４ｂに沿って電線軸方向に直線状に位置し、先端辺部５と螺旋状の編組線３の幅方向両側の辺部６，７とが傾斜状に交差し、一方の辺部６すなわち信号線２の先端（前端）とは反対側（後側）の辺部６と先端辺部５との鈍角的な（交差角を符号θ1で示す）後側の交差部８が、絶縁外皮４の切断された先端４ｃよりも絶縁外皮４の軸方向内側（後側）に位置して、交差部８が絶縁外皮４の内面４ｂに引っ掛かって（当接して）、編組線３の不意な解き出しが防止されたものである。 As shown in FIG. 1, the terminal structure of this shielded electric wire has a conductive metal braided wire (shield conductor) 3 outside the plural (two in this example) signal wire (electric wire) 2 and a strip-shaped flat knitted wire. In the shielded electric wire 1 wound in a spiral shape and covered with an insulating outer sheath (sheath) 4 on the outer side of the spiral braided wire 3, the terminal portion 4a on the distal end side of the insulating outer sheath 4 is peeled and removed, The tip side 5 of the spiral braided wire 3 is positioned linearly along the inner surface 4b of the insulating sheath 4 in the direction of the electric wire axis, and the side 6 on both sides of the tip side 5 and the spiral braided wire 3 in the width direction. , 7 intersect with each other in an inclined manner, and an obtuse angle (crossing angle of the side 6 on the side opposite to the front end (front end) of the signal line 2 and the front end side 5 is defined as one side 6. The rear crossing portion 8 (indicated by the symbol θ 1 ) is positioned on the inner side (rear side) in the axial direction of the insulating skin 4 relative to the cut end 4 c of the insulating skin 4. The intersecting portion 8 is hooked (contacted) with the inner surface 4b of the insulating outer skin 4, and the unraveling of the braided wire 3 is prevented.

絶縁外皮４の先端４ｃは電線軸方向と略直交して電線径方向に切断されている。編組線３の先端辺部５は後側の交差部８を除いて絶縁外皮４の先端４ｃから前方に突出（露出）している。信号線２の先端寄りに位置する編組線３の他方（前側）の辺部７と先端辺部５とは鋭角的に交差し（交差角を符号θ2で示す）、その交差部９は編組線３のうちで一番前方に突出している。 The distal end 4c of the insulating outer skin 4 is cut in the electric wire radial direction substantially perpendicular to the electric wire axial direction. The tip side 5 of the braided wire 3 protrudes (exposes) forward from the tip 4c of the insulating sheath 4 except for the rear crossing portion 8. The other side (front side) side 7 of the braided wire 3 located near the tip of the signal line 2 and the tip side 5 cross at an acute angle (the crossing angle is indicated by the symbol θ 2 ). It protrudes forward in line 3.

先端辺部５とは電線径方向に１８０度反対位置において、編組線３の外周面１０は絶縁外皮４の内面４ｂに沿って露出なく位置し、外周面１０の前端１０ａから概ね１８０°反対側に先端辺部５の後側の交差部８が位置し、後側の交差部８と外周面１０の前端１０ａとから少し前方の位置と、前側の交差部９との間の範囲の先端側の編組部分３ａが絶縁外皮４の先端４ｃから前方に突出（露出）している。   The outer peripheral surface 10 of the braided wire 3 is positioned without being exposed along the inner surface 4b of the insulating outer skin 4 at a position 180 degrees opposite to the distal end side portion 5 in the electric wire radial direction, and is approximately 180 ° opposite to the front end 10a of the outer peripheral surface 10. The rear crossing portion 8 of the front end side 5 is located at the front end side in a range between a position slightly ahead from the rear crossing portion 8 and the front end 10a of the outer peripheral surface 10 and the front crossing portion 9. The braided portion 3 a protrudes (exposes) forward from the tip 4 c of the insulating skin 4.

本例において編組線３は概ね３０〜４０°の傾斜角度で螺旋状に巻回され、隣接する前側と後側の各巻き部３1，３2は編組線３の全長に渡って前後に少しラップして（重なって）巻かれていてもよい。編組線３は予め直線的な帯状の平編み線として形成され、編組線３の先端が傾斜状に切断されて（両辺部６，７に直交してではなく傾斜状に交差して切断されて）先端辺部５をなし、その状態から信号線２の後端から前端２ａにかけて信号線２の外側に反時計回りに編組線３が螺旋状に巻かれている。 In this example, the braided wire 3 is spirally wound at an inclination angle of approximately 30 to 40 °, and the adjacent front and rear windings 3 1 and 3 2 are slightly moved back and forth over the entire length of the braided wire 3. It may be wrapped and overlapped. The braided wire 3 is formed in advance as a straight belt-like flat knitted wire, and the leading end of the braided wire 3 is cut in an inclined shape (not cut perpendicularly to both sides 6 and 7 but in an inclined shape). The leading edge 5 is formed, and the braided wire 3 is spirally wound around the outside of the signal line 2 counterclockwise from the rear end to the front end 2a of the signal line 2 from that state.

編組線３の先端辺部５が両辺部６，７に対して直交して切断された場合には、傾斜状の先端辺部５のように絶縁外皮４の内面４ｂに線接触ないし面接触する部分がなくなるから（後側の交差部８が線接触ではなく点接触で絶縁外皮４の内面４ｂに接することとなり）、交差部８による引っ掛かり代が小さく、引っ掛かり力が弱く、編組線３が不用意に解き出されやすい。   When the tip side 5 of the braided wire 3 is cut perpendicular to both sides 6 and 7, it makes line contact or surface contact with the inner surface 4 b of the insulating skin 4 like the inclined tip side 5. Since there is no portion (the rear crossing portion 8 comes into contact with the inner surface 4b of the insulating outer skin 4 not by line contact but by point contact), the catching amount by the crossing portion 8 is small, the catching force is weak, and the braided wire 3 is not good. Easy to unravel.

二本の信号線２は絶縁外皮４の先端４ｃから編組線３の露出部分３ａの内側を経て前方に突出し、各信号線２の先端側の絶縁被覆（絶縁内皮）２ｂは皮剥きされ、複数の素線でなる芯線２ｃが露出され、芯線２ｃには端子（図示せず）が圧着等の手段で接続される。信号線２の数は二本に限られるものではない。二本の場合はシールド電線１の断面が長円形に近い形となり、数が増すにつれて断面は円形に近づく。   The two signal lines 2 protrude forward from the tip 4c of the insulating sheath 4 through the exposed portion 3a of the braided wire 3, and the insulation coating (insulating endothelium) 2b on the tip side of each signal line 2 is peeled off. The core wire 2c made of the element wire is exposed, and a terminal (not shown) is connected to the core wire 2c by means such as crimping. The number of signal lines 2 is not limited to two. In the case of two, the cross section of the shielded electric wire 1 becomes an oval shape, and the cross section approaches a circle as the number increases.

絶縁外皮４は合成樹脂製の既存のものである。シールド電線の端末処理方法として、絶縁外皮４の切断（皮剥き）に際して、編組線３の先端辺部５が絶縁外皮４の切断先端４ｃにかかるように絶縁外皮４を切断する。必ずしも図１のように後側の交差部８のみが引っ掛かるように切断する必要はなく（少なくとも後側の交差部８が引っ掛かっていればよく）、例えば先端辺部５の前半部分が露出し、先端辺部５の後半部分が絶縁外皮４の内面４ｂに引っ掛かって（当接して）いてもよい。但し、信号線２の突出（露出）長さは長い方が端子（図示せず）の接続作業性がよいので、後側の交差部８のみが引っ掛かるように切断することも有効である。絶縁外皮４を径方向に切断した後、前方に引っ張ることで、絶縁外皮の先端部分４ａが除去される。   The insulating skin 4 is an existing one made of synthetic resin. As a terminal processing method for the shielded wire, when the insulating sheath 4 is cut (peeled off), the insulating sheath 4 is cut so that the tip side 5 of the braided wire 3 covers the cutting tip 4 c of the insulating sheath 4. It is not always necessary to cut so that only the rear crossing portion 8 is hooked as shown in FIG. 1 (at least the rear crossing portion 8 is hooked), for example, the front half portion of the front end side portion 5 is exposed, The latter half portion of the tip side portion 5 may be caught (contacted) with the inner surface 4 b of the insulating outer skin 4. However, the longer the protruding (exposed) length of the signal line 2 is, the better the connection workability of the terminal (not shown) is. Therefore, it is also effective to cut so that only the rear intersection 8 is caught. After cutting the insulating skin 4 in the radial direction, the front end portion 4a of the insulating skin is removed by pulling forward.

図１の状態から編組線３の露出した先端部３ａを手で把持して前方に引っ張ることで、螺旋状の編組線３が絶縁外皮４の先端４ｃから適宜長さに繰り出される。先端辺部５が直線的に電線軸方向に延びているので、先端辺部５の前側の交差部９を手指で掴みやすく、解き出し作業性が良い。図２の如く、繰り出した編組線３の先端部にアース用の端子１１を圧着接続して、車両ボディ等の金属パネル１２にボルト１３で締付接続する。本例の端子１１はＬＡ端子（丸型板端子）である。   From the state of FIG. 1, the exposed end portion 3 a of the braided wire 3 is grasped by hand and pulled forward, whereby the spiral braided wire 3 is fed out from the end 4 c of the insulating outer skin 4 to an appropriate length. Since the front end side 5 extends linearly in the direction of the electric wire axis, it is easy to grasp the intersection 9 on the front side of the front end side 5 with fingers, and the unwinding workability is good. As shown in FIG. 2, a grounding terminal 11 is crimped and connected to the tip of the drawn-out braided wire 3, and is tightened and connected to a metal panel 12 such as a vehicle body with a bolt 13. The terminal 11 in this example is an LA terminal (round plate terminal).

端子１１の前側の一対の圧着片１１ａと後側の一対の圧着片１１ｂとは共に編組線３の先端部に圧着される。後側の圧着片１１ｂを排除して前側の圧着片１１ａのみでも接続は可能である。信号線２には信号用の端子（図示せず）が接続され、信号用の端子は例えばコネクタハウジング内に収容されてはコネクタ（図示せず）として相手側の信号回路（図示せず）に接続される。   The pair of crimping pieces 11 a on the front side of the terminal 11 and the pair of crimping pieces 11 b on the rear side are both crimped to the tip of the braided wire 3. Connection is possible only with the front crimping piece 11a without the rear crimping piece 11b. A signal terminal (not shown) is connected to the signal line 2, and the signal terminal is accommodated in a connector housing, for example, as a connector (not shown) to a signal circuit (not shown) on the other side. Connected.

図１は皮剥き工程、図２はアース処理工程であり、皮剥き工程の後、アース処理工程の前までの間において、図１の編組線３の先端辺部５が絶縁外皮４の内面４ｂに引っ掛かっていることで、すなわち螺旋巻きされた編組線３の拡径方向の復元力（ばね力）で先端辺部５が絶縁外皮４の内面４ｂに当接していることで、編組線３の先端部に端子１１を接続するべく編組線３を繰り出す前の段階で、作業者の意図に反して編組線３が過剰に露出してしまうという作業性上の問題が解消され、編組線３への端子１１の圧着接続が作業性良くスムーズに行われ、図２における編組線３の露出長さが最適な長さに規定され、編組線３の露出長の長過ぎに起因する外部との干渉や引っ掛けやそれに伴う破損等が防止される。   FIG. 1 shows a skinning process, and FIG. 2 shows a grounding process. The tip side 5 of the braided wire 3 in FIG. 1 is the inner surface 4b of the insulating skin 4 after the skinning process and before the grounding process. The tip side 5 is in contact with the inner surface 4b of the insulating outer skin 4 by the restoring force (spring force) in the diameter increasing direction of the braided wire 3 spirally wound. The problem of workability that the braided wire 3 is excessively exposed against the operator's intention at the stage before the braided wire 3 is unwound to connect the terminal 11 to the distal end portion is solved. 2 is smoothly connected with good workability, the exposed length of the braided wire 3 in FIG. 2 is set to an optimum length, and interference with the outside due to the excessively exposed length of the braided wire 3 It can be prevented from being caught or damaged.

また、図１において、絶縁外皮４の先端部４ａの皮剥きを行う前においては、編組線３の先端辺部５が絶縁外皮４の内面４ｂに線接触ないし面接触（先端辺部５の細長矩形状の面で接触）で当接しており、例えば先端辺部５を両側の辺部６，７と直交する方向に切断した場合は先端辺部５の後側の交差部８がほぼ点接触で絶縁外皮４の内面に当接することと較べて、先端辺部５と絶縁外皮４の内面４ｂとの摺動摩擦抵抗が増大し、螺旋状の編組線３の不用意な解き出しが防止される。   In FIG. 1, the tip side 5 of the braided wire 3 is in line contact or surface contact with the inner surface 4 b of the insulating skin 4 before the tip 4 a of the insulating skin 4 is peeled. For example, when the tip side 5 is cut in a direction orthogonal to the sides 6 and 7 on both sides, the intersection 8 on the rear side of the tip 5 is almost point contact. Compared to the contact with the inner surface of the insulating outer shell 4, the sliding frictional resistance between the tip side 5 and the inner surface 4b of the insulating outer shell 4 is increased, and the unintentional unraveling of the spiral braided wire 3 is prevented. .

なお、上記実施形態においては、シールド導体として編組線３を用いたが、編組線３に代えて銅箔やアルミ箔等の金属箔（図示せず）を用いて図１の編組線３と同様の形態（幅方向両側の辺部６，７に対して傾斜した先端辺部５を有する構造）とすることも可能である。また、複数の信号線２に代えて一本の芯線とその外側の絶縁内皮とで成る不図示の電線（同軸線）を配置した場合においても、上記シールド導体３の形態を適用可能である。   In the above embodiment, the braided wire 3 is used as the shield conductor. However, instead of the braided wire 3, a metal foil (not shown) such as a copper foil or an aluminum foil is used as in the braided wire 3 of FIG. It is also possible to adopt the form (structure having the tip side part 5 inclined with respect to the side parts 6 and 7 on both sides in the width direction). Further, the form of the shield conductor 3 can also be applied when a not-illustrated electric wire (coaxial line) composed of one core wire and an outer insulating endothelium instead of the plurality of signal lines 2 is arranged.

本発明に係るシールド電線の端末構造及び端末処理方法は、例えば自動車のボディ等にシールド電線の編組線等のシールド導体を規定の長さで作業性良くアース接続するために利用することができる。   The shield wire terminal structure and the terminal processing method according to the present invention can be used, for example, to connect a shield conductor such as a braided wire of a shield wire to a body or the like of an automobile with a specified length and with good workability.

１ シールド電線
２ 信号線（電線）
２ａ 先端
３ 編組線（シールド導体）
３ａ 先端側
４ 絶縁外皮
４ａ 先端側
４ｂ 内面
５ 先端辺部
６ 一側の辺部
６，７ 両側の辺部
８ 後側の（鈍角的な）交差部 1 Shielded wire 2 Signal wire (electric wire)
2a Tip 3 Braided wire (shield conductor)
3a Tip side 4 Insulation outer skin 4a Tip side 4b Inner surface 5 Tip side part 6 One side part 6, 7 Both side parts 8 Rear (obtuse) intersection

Claims (3)

電線の外側に帯状のシールド導体が螺旋状に巻回され、該シールド導体の外側に絶縁外皮が被着されたシールド電線において、該シールド導体の先端辺部が該絶縁外皮の内面に沿って電線軸方向に直線状に位置し、該先端辺部と該シールド導体の幅方向両側の辺部とが傾斜状に交差したことを特徴とするシールド電線の端末構造。   In a shielded electric wire in which a strip-shaped shield conductor is spirally wound on the outer side of the electric wire and an insulating outer sheath is attached to the outer side of the shield conductor, the tip side portion of the shield conductor extends along the inner surface of the insulating outer sheath. A terminal structure of a shielded electric wire, characterized in that the tip side and the sides on both sides in the width direction of the shield conductor intersect with each other in an inclined manner in a straight line in the axial direction. 前記絶縁外皮の先端側が皮剥きされ、前記シールド導体の先端側が露出し、前記電線の先端とは反対側の一側の前記辺部と前記先端辺部との鈍角的な少なくとも交差部が前記絶縁外皮の内面に当接したことを特徴とする請求項１記載のシールド電線の端末構造。   The front end side of the insulating outer skin is peeled off, the front end side of the shield conductor is exposed, and at least the obtuse crossing between the side portion on one side opposite to the front end of the electric wire and the front end side portion is the insulating portion. The terminal structure of the shielded electric wire according to claim 1, wherein the terminal structure is in contact with the inner surface of the outer skin. 電線の外側に帯状のシールド導体を螺旋状に巻回し、該シールド導体の外側に絶縁外皮を被着し、該絶縁外皮の先端側を皮剥きし、該シールド導体の先端側を露出させるシールド電線の端末処理方法であって、該シールド導体の先端辺部が該絶縁外皮の内面に沿って電線軸方向に直線状に位置し、該先端辺部と該シールド導体の幅方向両側の辺部とが傾斜状に交差するように該先端辺部を切断形成し、該電線の先端とは反対側の一側の該辺部と該先端辺部との鈍角的な少なくとも交差部が該絶縁外皮の内面に当接するように、該絶縁外皮の先端側を皮剥きすることを特徴とするシールド電線の端末処理方法。   A shielded electric wire in which a strip-shaped shield conductor is spirally wound around the outer side of the electric wire, an insulating sheath is attached to the outer side of the shielding conductor, the tip end side of the insulating sheath is peeled off, and the tip end side of the shield conductor is exposed The tip end portion of the shield conductor is positioned linearly along the inner surface of the insulating sheath in the direction of the electric wire axis, and the tip end portion and the sides on both sides in the width direction of the shield conductor, The tip side portion is cut and formed so as to intersect with each other in an inclined shape, and at least the obtuse crossing portion between the side portion on one side opposite to the tip end of the electric wire and the tip side portion is the insulating sheath. A method for treating a terminal end of a shielded electric wire, comprising peeling off a tip end side of the insulating outer skin so as to contact an inner surface.
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RU2013112318/07A RU2524390C1 (en) 2010-08-20 2011-07-28 End structure and method of end processing of shielded electric wire
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RU2524390C1 (en) 2014-07-27
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JP5826995B2 (en) 2015-12-02
BR112013003475A2 (en) 2018-05-29

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