JP2020064880A - Crimp contact, electric wire connection structure, and wire harness - Google Patents

Abstract

To provide a connection structure capable of securing reliable water cutoff performance by forming, at a front end part of at least one of barrel pieces and a barrel bottom surface, an engagement part for engaging the barrel bottom surface and the barrel pieces when a crimp allowable part is brought into a crimped state.SOLUTION: A connection structure comprises a crimp contact 10 including barrel pieces 32 and a barrel bottom surface 31, which constitute a crimp allowable part that crimps at least a conductor exposed part of an electric wire tip. The barrel pieces are disposed on both sides of the barrel bottom surface in the width direction thereof. The barrel pieces are formed so that their lengths in the longitudinal direction are longer than the length of the conductor exposed part, and are formed continuously in the longitudinal direction in order to continuously integrally surround from the conductor exposed part to the front end of an insulation coating. An engagement part 34 for engaging the barrel bottom surface and the barrel pieces when the crimp allowable part is brought into a crimped state is formed at a front end part of at least one of the barrel pieces and the barrel bottom surface.SELECTED DRAWING: Figure 2

Description

この発明は、例えば、被覆電線と圧着する圧着端子、該圧着端子と被覆電線とを圧着して構成した電線接続構造体、及び該電線接続構造体の圧着端子をコネクタのキャビティに装着したワイヤハーネスに関する。   The present invention relates to, for example, a crimp terminal for crimping a covered electric wire, an electric wire connection structure formed by crimping the crimped terminal and the covered electric wire, and a wire harness in which the crimp terminal of the electric wire connection structure is mounted in a cavity of a connector. Regarding

自動車などの車両には、操作性の向上などを図るための電子機器類が数多く搭載されている。これら電子機器類は、互いにワイヤハーネスで接続され、信号の送受信をしたり、電力を供給したりしている。   Vehicles such as automobiles are equipped with many electronic devices for improving operability. These electronic devices are connected to each other by a wire harness to send and receive signals and supply electric power.

上記ワイヤハーネスは、被覆電線と圧着端子とを圧着して構成した電線接続構造体と、該電線接続構造体の圧着端子を装着するキャビティを有するコネクタとで構成している。このように構成するワイヤハーネスは、多様な環境下においても安定した導通性を有する電線接続構造体が必要であり、これを実現するために、例えば、特許文献１に記載の電線接続構造体が提案されている。   The wire harness includes an electric wire connection structure formed by crimping a covered electric wire and a crimp terminal, and a connector having a cavity into which the crimp terminal of the electric wire connection structure is mounted. The wire harness configured as described above requires an electric wire connection structure having stable conductivity even under various environments, and in order to realize this, for example, the electric wire connection structure described in Patent Document 1 is used. Proposed.

特許文献１に記載の電線接続構造体は、導体の先端側以外を絶縁被覆で被覆した被覆電線、及び導体と絶縁被覆とを離間する位置でそれぞれ圧着する圧着部を有する圧着端子とを圧着し、圧着部から露出する導体を止水材で囲繞して構成している。   The electric wire connection structure described in Patent Document 1 crimps a covered electric wire in which the conductor other than the tip end side is covered with an insulating coating, and a crimp terminal having a crimping portion for crimping the conductor and the insulating coating at positions separated from each other. The conductor exposed from the crimp portion is surrounded by a water blocking material.

これに対して、被覆電線の先端側を一体的に囲繞して圧着する圧着部を備えた圧着端子と被覆電線とを圧着した電線接続構造体の場合、被覆電線と圧着端子との圧着状態における圧着部は管状となるが、圧着部の内部への水分の浸入を防止する止水性を向上させるために、圧着部に止水材を設けることが望ましい。   On the other hand, in the case of an electric wire connection structure in which a crimp terminal provided with a crimp portion that integrally surrounds and crimps the tip side of the covered electric wire and the covered electric wire are crimped, in the crimped state of the covered electric wire and the crimp terminal The crimping portion has a tubular shape, but it is desirable to provide a water blocking material to the crimping portion in order to improve the water blocking property for preventing the infiltration of water into the crimping portion.

しかしながら、被覆電線との圧着状態において管状となる圧着部は、被覆電線を囲繞するように止水材とともに管状に圧着されるため、止水材の配置位置が移動する、つまり、止水材の位置ズレが生じて十分な止水性を確保できないおそれがあった。   However, the crimping portion that is tubular in the crimping state with the covered electric wire is tubularly crimped together with the water blocking material so as to surround the covered electric wire, so the position of the water blocking material moves, that is, There was a risk that a positional shift would occur and sufficient water blocking could not be secured.

特開２０１４−１０７０７２号公報JP, 2014-107072, A

そこで本発明は、止水材の位置ズレが生じることを抑制できる圧着端子、電線接続構造体、及びワイヤハーネスを提供することを目的とする。   Therefore, an object of the present invention is to provide a crimp terminal, an electric wire connection structure, and a wire harness that can suppress the positional shift of the water blocking material.

この発明は、導体が絶縁被覆で被覆され、前記導体の長手方向の先端側において所定長さの前記導体が前記絶縁被覆から露出した被覆電線における露出した前記導体より前記先端側から、前記絶縁被覆の先端部分までを一体的に囲繞して管状に圧着する圧着部を有する圧着端子であって、前記圧着部が、前記絶縁被覆を圧着する被覆圧着部と、前記導体を圧着する導体圧着部とで構成され、前記導体圧着部における前記被覆電線と接触する側である接触側の面において、前記導体と接触する部分に前記長手方向と交差する幅方向に沿うとともに、前記長手方向に沿って所定の間隔を隔てて配置された複数のセレーションが設けられ、複数配置された前記セレーションのうち後端側に配置された前記セレーションを後端側セレーションとし、前記後端側セレーションより前記後端側と前記後端側セレーションとにわたるとともに、前記幅方向に沿って形成された止水材が設けられたことを特徴とする。 In the present invention, a conductor is covered with an insulating coating, and the conductor having a predetermined length on the distal end side in the longitudinal direction of the conductor is exposed from the insulating coating. Is a crimping terminal having a crimping portion integrally surrounding up to the tip portion of and crimping in a tubular shape, wherein the crimping portion is a coated crimping portion that crimps the insulating coating, and a conductor crimping portion that crimps the conductor. in the configuration, in the covered wire with the surface of the contact side is the side that contacts at the conductor crimping portion, the connected along the width direction intersecting the longitudinal direction in the portion in contact with the front Symbol conductor, along the longitudinal direction is provided with a plurality of serrations which are arranged at a predetermined interval, the serrations arranged on the rear end side of the serrations which are more disposed to the rear side serration, before With the rear end side serration and the rear end side across said rear end serrations, wherein the width direction formed along been water stopping material is provided.

上記導体は、アルミニウムやアルミニウム合金で構成したアルミニウム系の導体や、銅や銅合金で構成した銅系の導体などを含む概念である。
上記先端側は、被覆電線における先端側と、圧着端子における先端側とを含む概念であって、被覆電線と圧着端子との先端側は一致する。 The conductor is a concept including an aluminum-based conductor made of aluminum or an aluminum alloy, a copper-based conductor made of copper or a copper alloy, or the like.
The tip side is a concept including the tip side of the covered electric wire and the tip side of the crimp terminal, and the tip side of the covered electric wire and the tip side of the crimp terminal are the same.

上述の一体的に囲繞して管状に圧着する圧着部とは、幅方向の両端部側が重なるように圧着部を被覆電線に巻き回した、いわゆる寿司巻き管状の圧着部、圧着部の幅方向の両端部を突き当てた、いわゆる突き当て管状の圧着部、導体圧着部と被覆圧着部との一方を寿司巻き管状とし、他方を突き当て管状とした圧着部、寿司巻き管状において重なる部分や、突き当て管状において突き当てた部分を溶接した圧着部、圧着して先端側を封止した封止部を有する圧着部、或いは、圧着部を突き当て管状に形成するとともに、先端側に封止部を設けた圧着部などを含む概念である。   The above-mentioned crimping portion integrally surrounding and crimping in a tubular shape is a so-called sushi winding tubular crimping portion, in which the crimping portion is wound around a covered electric wire so that both end sides in the width direction overlap, in the width direction of the crimping portion. A so-called butted tubular crimping part with both ends abutted, one of the conductor crimping part and the covering crimping part is a sushi roll tubular, and the other is a butted tubular crimping part, an overlapping part in the sushi roll tubular A crimping part in which the abutted part of the abutting tube is welded, a crimping part having a sealing part that is crimped and sealed at the tip side, or a crimping part is formed in a butting tubular shape and a sealing part is provided at the tip side. This is a concept including a provided crimping portion and the like.

上記セレーションは、圧着部の板厚方向に窪んだ凹状のセレーションや、突出した凸状のセレーションを含む概念であって、圧着部の幅方向に向けて延設するとともに軸方向に所定の間隔を隔てて複数配置したセレーション、軸方向に向けて延設するとともに幅方向に所定の間隔を隔てて複数配置したセレーション、及び軸方向及び幅方向に所定の間隔を隔てて複数配置した複数のセレーションなどを含む。   The serration is a concept including a concave serration recessed in the plate thickness direction of the crimp portion and a protruding serration protrusion, and is extended in the width direction of the crimp portion and at a predetermined interval in the axial direction. A plurality of serrations arranged at intervals, a plurality of serrations extending in the axial direction and arranged at a predetermined interval in the width direction, and a plurality of serrations arranged at a predetermined interval in the axial direction and the width direction, etc. including.

上記止水材は、少なくとも片面の全体又は一部に接着手段を備えたシート状の止水材、接着手段を備えていないシート状の止水材、或いは、圧着部における接触側の面に合成樹脂を固着させたりを塗布したりした止水材などを含む概念である。   The water-stopping material is a sheet-like water-stopping material provided with an adhesive means on at least one side or a part thereof, a sheet-like water-stopping material not provided with an adhesive means, or a contact-side surface of the crimping portion. It is a concept that includes a water blocking material to which a resin is fixed or applied.

上述のセレーションの一部に掛かる止水材とは、例えば、セレーションの先端側や他端側に掛けて係止した状態の止水材や、セレーションの一端部側や他端部側に掛けて係止した状態の止水材を含む概念である。   The water-stopping material hanging on a part of the above-mentioned serration is, for example, a water-stopping material in a state of being hooked on the leading end side or the other end side of the serration or being hooked on one end side or the other end side of the serration. This is a concept including a water blocking material in a locked state.

この発明により、止水材の位置ズレが生じることを抑制できる。
詳述すると、圧着部における接触側の面に、セレーションの一部に掛かる止水材を設けたことで、凹状又は凸状のセレーションの一部に止水材が係止し、被覆電線を囲繞するように圧着しても、止水材の位置ズレが生じることを抑制することができる。
従って、管状となる圧着部の内部への水分の侵入を防止することができ、圧着端子の止水性を向上させることができる。 According to the present invention, it is possible to suppress the positional deviation of the water blocking material.
More specifically, by providing a water blocking material that hangs on a part of the serration on the contact side surface of the crimping part, the water blocking material locks on a part of the concave or convex serration, and surrounds the covered wire. Even if pressure bonding is performed as described above, it is possible to suppress the positional deviation of the water blocking material.
Therefore, it is possible to prevent moisture from entering the inside of the crimp portion having a tubular shape, and improve the water blocking performance of the crimp terminal.

また、セレーションの一部に止水材を係止させることに加え、管状状態となる圧着部の径内側に突出する突出部に止水材が突き当たることで、圧着部の先端側から外部に向けて止水材の位置ズレが生じることを防止できる。これにより、導体圧着部の先端側から圧着部の内部への水分の浸入を、より確実に防止することができる。 In addition to locking the water blocking material to a part of the serration, the water blocking material collides with the protruding part that protrudes inward of the diameter of the crimping part that is in a tubular state, so that the tip side of the crimping part is directed outward. It is possible to prevent the displacement of the water blocking material. Thereby, it is possible to more reliably prevent water from entering the inside of the crimping portion from the tip side of the conductor crimping portion.

また、導体圧着部は、幅方向における両端部側を管状状態において重ねた、いわゆる寿司巻き管状となるため、圧着状態において導体圧着部の径外側に位置する一端部側である重合部分が他端部側と密着し、導体圧着部の周方向から圧着部の内部への水分の浸入を防止できる。つまり、導体圧着部の周方向からの止水性を向上させることができる。 Further, since the conductor crimping portion is a so-called sushi roll tubular in which both end sides in the width direction are overlapped in a tubular state, the overlapping portion which is one end side located outside the conductor crimping portion in the crimping state is the other end. It is possible to prevent the infiltration of water from the circumferential direction of the conductor crimping portion into the inside of the crimping portion by closely adhering to the portion side. That is, the waterproofness of the conductor crimping portion in the circumferential direction can be improved.

さらにまた、管状状態において径内側に重なる被重合部分の切り欠き部に圧着部と止水材の板厚分隙間が生じるため、圧着によって潰される止水材の先端側が切り欠き部に逃げることができる。これにより、圧着部の先端側から外部に止水材が潰れ出ることを確実に防止できる。 Furthermore, in the tubular state, since a gap corresponding to the plate thickness of the pressure-bonding portion and the water blocking material is formed in the cutout portion of the overlapped portion that overlaps the inner diameter, the tip side of the water blocking material that is crushed by pressure bonding may escape to the notch portion. it can. As a result, it is possible to reliably prevent the water blocking material from being crushed to the outside from the tip end side of the crimp portion.

この発明の態様として、前記セレーションの前記先端側に前記止水材を掛けることができる。
この発明により、セレーションよりも先端側において止水材の位置ズレが生じることを抑制できるため、特に導体圧着部の先端側の止水材を精度よく所定の位置に配置することができる。
従って、管状となる圧着部の、特に導体圧着部の先端側からの水分の浸入を防止することができる。 As an aspect of the present invention, the water blocking material can be hung on the tip side of the serration.
According to the present invention, it is possible to suppress the positional deviation of the water blocking material on the tip side with respect to the serration, so that the water blocking material on the tip side of the conductor crimping portion can be accurately arranged at a predetermined position.
Therefore, it is possible to prevent the infiltration of water from the tubular crimp portion, particularly from the tip side of the conductor crimp portion.

またこの発明の態様として、前記導体圧着部の前記他端部まで前記セレーションを延設することができる。
上述の導体圧着部の他端部まで延設したセレーションとは、導体圧着部の他端部と一致するまで延設したセレーションや、導体圧着部の他端部とわずかに離間する位置まで延設したセレーションなどを含む概念である。 Further, as an aspect of the present invention, the serration can be extended to the other end of the conductor crimping portion.
The serration extending to the other end of the conductor crimping portion is a serration extending to the other end of the conductor crimping portion or a position slightly separated from the other end of the conductor crimping portion. It is a concept that includes serrations and the like.

この発明により、導体圧着部の周方向の止水性を確保しつつ、導通性を向上させることができる。
詳述すると、圧着部の管状状態において、導体圧着部の重合部分である一端部側の径内側に位置する他端部までセレーションを延設したことで、一端部側と他端部側との間にセレーションが配置されて隙間が生じることを防止し、導体圧着部の一端部側と他端部側とが密着した圧着状態を得ることができる。 According to the present invention, it is possible to improve the conductivity while ensuring the waterproofness of the conductor crimping portion in the circumferential direction.
More specifically, in the tubular state of the crimping section, by extending the serration to the other end located on the radially inner side of the one end side which is the overlapping portion of the conductor crimping section, the one end side and the other end side It is possible to prevent a gap from being formed by arranging serrations between them and to obtain a crimped state in which one end side and the other end side of the conductor crimping portion are in close contact with each other.

さらに、一端部側の径内側に重なる他端部までセレーションを延設した導体圧着部は、他端部までセレーションを延設していない導体圧着部よりも、セレーションと導体との接触領域を拡大させることができる。
従って、導体圧着部の周方向の止水性を確保しつつ、導体圧着部と導体との導通性を向上させることができる。 Furthermore, the conductor crimping part that extends the serration to the other end that overlaps the inner diameter of the one end side has a larger contact area between the serration and the conductor than the conductor crimping part that does not extend the serration to the other end. Can be made.
Therefore, it is possible to improve the electrical continuity between the conductor crimping portion and the conductor while ensuring the waterproofness of the conductor crimping portion in the circumferential direction.

またこの発明の態様として、前記導体圧着部の前記他端部側を、管状状態において前記重合部分の径内側に重なる被重合部分とし、前記接触側の面における前記導体圧着部の前記被重合部分に、前記止水材を配置しない非配置部を設けることができる。   Further, as an aspect of the present invention, the other end side of the conductor crimping portion is a polymerized portion that overlaps a radially inner side of the polymerized portion in a tubular state, and the polymerized portion of the conductor crimping portion on a surface of the contact side. It is possible to provide a non-arrangement part in which the water blocking material is not arranged.

この発明により、管状状態において径内側に重なる被重合部分の非配置部に止水材の板厚分隙間が生じるため、圧着によって潰される止水材がその隙間に逃げることができる。これにより、圧着部の外部に止水材が潰れ出ることを防止できる。   According to the present invention, in the tubular state, a gap corresponding to the plate thickness of the water blocking material is formed in the non-arranged portion that overlaps the radially inner side, so that the water blocking material crushed by pressure bonding can escape into the gap. As a result, it is possible to prevent the water blocking material from crushing outside the crimp portion.

またこの発明の態様として、前記被覆圧着部の幅方向の長さを、管状状態において前記幅方向の両端部が突き当たる長さとすることができる。
この発明により、被覆圧着部は、管状状態において幅方向の両端部を突き当てた、いわゆる突き当て管状となるため、接触面に止水材を備えた被覆圧着部であっても、例えば、管状状態において寿司巻き管状となる被覆圧着部よりも、縮径させることができる。
これにより、従来から用いられているコネクタのキャビティに圧着端子を装着することができる。 Further, as an aspect of the present invention, the length in the width direction of the coated crimp portion can be set to a length with which both ends in the width direction abut in a tubular state.
According to the present invention, the coated crimping portion is a so-called butted tubular shape in which both end portions in the width direction are abutted in a tubular state, so even if the coated crimping portion is provided with a water blocking material on the contact surface, for example, a tubular shape In the state, the diameter can be made smaller than that of the coated pressure-bonded portion which is a sushi roll.
As a result, the crimp terminal can be mounted in the cavity of the conventionally used connector.

またこの発明は、上記圧着端子と前記被覆電線とを圧着した電線接続構造体であることを特徴とする。
この発明により、被覆電線と圧着端子とを、止水材の位置ズレが生じることを抑制しながら圧着することができるため、確実な止水性を有する電線接続構造体を構成することができる。 Further, the present invention is characterized in that it is an electric wire connection structure in which the crimp terminal and the covered electric wire are crimped.
According to the present invention, the covered electric wire and the crimp terminal can be crimped while suppressing the positional deviation of the water blocking material, and thus the wire connection structure having reliable water blocking can be configured.

この発明の態様として、前記導体圧着部の前記先端側に、圧着によって封止された封止部を設けることができる。
この発明により、管状となる導体圧着部の先端側から圧着部の内部への水分の浸入を、より確実に防止することができる。 As an aspect of the present invention, a sealing portion sealed by crimping can be provided on the tip side of the conductor crimping portion.
According to the present invention, it is possible to more reliably prevent water from entering the inside of the crimping portion from the tip side of the tubular conductor crimping portion.

またこの発明の態様として、アルミニウム系材料で前記導体を構成することができる。
この発明により、電線接続構造体を、例えば、銅系材料で構成した導体を有する電線接続構造体よりも軽量化することができる。 Further, as an aspect of the present invention, the conductor can be made of an aluminum-based material.
According to the present invention, the electric wire connection structure can be made lighter than, for example, an electric wire connection structure having a conductor made of a copper-based material.

しかも、被覆電線と圧着部との圧着状態において、止水材の位置ズレを防止することができるため、管状の圧着部の内部への水分の浸入を防止し、導体とイオン化傾向が異なる異種金属で圧着部を構成した場合であっても、導体と導体圧着部との接触部分に、水分が付着して電食が生じることを防止できる。   Moreover, in the crimping state of the covered electric wire and the crimping portion, it is possible to prevent the position of the water blocking material from being displaced, so that it is possible to prevent water from entering the inside of the tubular crimping portion, and to dissimilar metal having a different ionization tendency from the conductor. Even when the crimping portion is configured by, it is possible to prevent water from adhering to the contact portion between the conductor and the conductor crimping portion to cause electrolytic corrosion.

またこの発明は、上記電線接続構造体を構成する前記圧着端子をコネクタに装着したワイヤハーネスであることを特徴とする。
この発明により、圧着端子と被覆電線とを、止水材の位置ズレが生じることを抑制しながら圧着して、確実な止水性を有する電線接続構造体を用いたワイヤハーネスを構成することができる。 Further, the present invention is characterized in that it is a wire harness in which the connector is provided with the crimp terminal which constitutes the electric wire connection structure.
According to the present invention, the crimp terminal and the covered electric wire can be crimped while suppressing the positional deviation of the water blocking material, and the wire harness using the wire connection structure having reliable water blocking can be configured. .

本発明は、止水材の位置ズレが生じることを抑制できる圧着端子、電線接続構造体、及びワイヤハーネスを提供することができる。   INDUSTRIAL APPLICABILITY The present invention can provide a crimp terminal, an electric wire connection structure, and a wire harness that can suppress the positional shift of the water blocking material.

第１実施形態のワイヤハーネスの説明図。Explanatory drawing of the wire harness of 1st Embodiment. 第１実施形態の電線接続構造体の説明図。Explanatory drawing of the electric wire connection structure of 1st Embodiment. 第１実施形態の圧着端子の説明図。Explanatory drawing of the crimp terminal of 1st Embodiment. 第１実施形態の管状状態の圧着端子の説明図。Explanatory drawing of the crimp terminal of a tubular state of 1st Embodiment. 第２実施形態の圧着端子を説明する説明図。Explanatory drawing explaining the crimp terminal of 2nd Embodiment. 第３実施形態の圧着端子を説明する説明図。Explanatory drawing explaining the crimp terminal of 3rd Embodiment.

（第１実施形態）
この発明の第１実施形態を、図１から図４を用いて説明する。
図１（ａ）は、第１実施形態のワイヤハーネス１の概略斜視図を示し、図１（ｂ）は、第１実施形態のワイヤハーネス１をコネクタ２と電線接続構造体３とに分解した概略分解斜視図を示し、図２（ａ）は、第１実施形態の電線接続構造体３の概略斜視図を示し、図２（ｂ）は、第１実施形態の電線接続構造体３の軸方向Ｘに沿った概略縦断面図を示している。 (First embodiment)
A first embodiment of the present invention will be described with reference to FIGS. 1 to 4.
1A shows a schematic perspective view of the wire harness 1 of the first embodiment, and FIG. 1B shows the wire harness 1 of the first embodiment disassembled into a connector 2 and a wire connection structure 3. 2A shows a schematic exploded perspective view, FIG. 2A shows a schematic perspective view of the electric wire connection structure 3 of the first embodiment, and FIG. 2B shows an axis of the electric wire connection structure 3 of the first embodiment. It shows a schematic vertical cross-section along the direction X.

図３（ａ）は、第１実施形態の圧着端子２０の概略斜視図を示し、図３（ｂ）は、第１実施形態の圧着端子２０を平面展開した状態の概略平面図を示し、図４（ａ）は、第１実施形態の圧着端子２０の圧着部２３を電線先端部１０ａに巻き回した管状状態の概略斜視図を示し、図４（ｂ）は、管状状態の導体圧着部２４の概略断面図を示し、図４（ｃ）は、管状状態の被覆圧着部２５の概略断面図を示している。   FIG. 3A shows a schematic perspective view of the crimp terminal 20 of the first embodiment, and FIG. 3B shows a schematic plan view of the crimp terminal 20 of the first embodiment in a flattened state. 4A shows a schematic perspective view of a tubular state in which the crimp portion 23 of the crimp terminal 20 of the first embodiment is wound around the electric wire tip portion 10a, and FIG. 4B shows a conductor crimp portion 24 in the tubular state. 4C is a schematic cross-sectional view of the coated crimp portion 25 in a tubular state.

なお、図２（ａ）、図２（ｂ）、図３（ａ）、及び図４（ａ）は、圧着端子の構成について理解を容易にするために、止水材２７を図示省略し、簡潔にあらわしている。
また、電線接続構造体３の長手方向を軸方向Ｘとし、各図における左側を先端側Ｘａとするとともに、右側を他端側Ｘｂとする。
さらに、図３（ｂ）に図示する平面側が、圧着端子２０の圧着部２３の内面２３１であり、軸方向Ｘに直交する方向を幅方向Ｙとし、図３（ｂ）における上側を一端部側Ｙａとするとともに、下側を他端部側Ｙｂとする。 2 (a), FIG. 2 (b), FIG. 3 (a), and FIG. 4 (a), in order to facilitate understanding of the structure of the crimp terminal, the water stop material 27 is omitted in the drawing. It is expressed simply.
Further, the longitudinal direction of the wire connection structure 3 is defined as the axial direction X, the left side in each drawing is the tip side Xa, and the right side is the other end side Xb.
Furthermore, the plane side illustrated in FIG. 3B is the inner surface 231 of the crimp portion 23 of the crimp terminal 20, the direction orthogonal to the axial direction X is the width direction Y, and the upper side in FIG. In addition to Ya, the lower side is the other end side Yb.

第１実施形態におけるワイヤハーネス１は、図１（ａ）及び図１（ｂ）に示すように、コネクタ２と電線接続構造体３とで構成している。
詳述すると、ワイヤハーネス１は、電線接続構造体３を構成する被覆電線１０の先端側Ｘａに圧着した圧着端子２０を、コネクタ２のキャビティ２ａに装着して構成している。 The wire harness 1 in the first embodiment includes a connector 2 and a wire connection structure 3 as shown in FIGS. 1 (a) and 1 (b).
More specifically, the wire harness 1 is configured by mounting a crimp terminal 20 crimped on the tip side Xa of the covered electric wire 10 constituting the electric wire connection structure 3 in the cavity 2a of the connector 2.

コネクタ２は、図１（ａ）及び図１（ｂ）に示すように、略直方体に形成された雌型のコネクタであって、コネクタ２の軸方向Ｘに沿って貫通するキャビティ２ａが複数形成されている。このコネクタ２は、先端側Ｘａに図示省略する雄型のコネクタと嵌合することが可能であるとともに、他端側Ｘｂから電線接続構造体３の圧着端子２０を装着することが可能である。
なお、コネクタ２は、本実施形態において雌型としているが、雄型であってもよい。ただし、雄型のコネクタを用いる場合、雄型の圧着端子をキャビティに装着しなければならない。 As shown in FIGS. 1A and 1B, the connector 2 is a female connector formed in a substantially rectangular parallelepiped, and has a plurality of cavities 2 a penetrating along the axial direction X of the connector 2. Has been done. This connector 2 can be fitted to a male connector (not shown) on the tip side Xa, and the crimp terminal 20 of the wire connection structure 3 can be mounted from the other end side Xb.
Although the connector 2 is a female type in the present embodiment, it may be a male type. However, when using a male connector, a male crimp terminal must be mounted in the cavity.

電線接続構造体３は、図２（ａ）及び図２（ｂ）に示すように、後述する被覆電線１０の電線先端部１０ａと、圧着端子２０の圧着部２３とを導通可能に圧着して構成している。   As shown in FIGS. 2A and 2B, the wire connection structure 3 is obtained by crimping the wire tip portion 10a of the covered wire 10 described later and the crimp portion 23 of the crimp terminal 20 so as to be conductive. I am configuring.

被覆電線１０は、図２（ａ）及び図２（ｂ）に示すように、アルミニウム系材料で構成した導体１１を、絶縁性を有する合成樹脂で構成する絶縁被覆１２で被覆して構成している。この被覆電線１０は、先端側Ｘａの絶縁被覆１２を所定長さ剥いで導体１１を露出させた導体露出部１３と、絶縁被覆１２の先端側Ｘａである被覆先端部１４とで構成する電線先端部１０ａを有している。
なお、導体１１は、本実施形態においてアルミニウム系材料で構成したが、導通性を有していれば、例えば、銅系材料で構成してもよい。 As shown in FIGS. 2A and 2B, the covered electric wire 10 is formed by covering a conductor 11 made of an aluminum-based material with an insulating coating 12 made of an insulating synthetic resin. There is. This covered electric wire 10 includes a conductor exposed portion 13 in which the conductor 11 is exposed by peeling a predetermined length of the insulating coating 12 on the tip side Xa, and a coated tip portion 14 which is the tip side Xa of the insulating coating 12. It has a portion 10a.
Although the conductor 11 is made of an aluminum-based material in the present embodiment, it may be made of, for example, a copper-based material as long as it has electrical conductivity.

圧着端子２０は、図３（ａ）及び図３（ｂ）に示すように、ボックス部２１と、トランジション部２２と、圧着部２３とを、先端側Ｘａからこの順に配置して一体に構成している。この圧着端子２０は、平面展開形状に打ち抜いた銅系材料で構成する板状の基材を折り曲げて、上記各部を形成している。   As shown in FIGS. 3 (a) and 3 (b), the crimp terminal 20 has a box portion 21, a transition portion 22, and a crimp portion 23 arranged in this order from the front end side Xa and integrally configured. ing. The crimp terminal 20 is formed by bending a plate-shaped base material made of a copper-based material punched into a flattened shape to form each of the above parts.

まず、板状の基材を折り曲げて形成した状態の圧着端子２０の構成について、図３（ａ）を用いて簡単に説明する。
ボックス部２１は、先端側Ｘａが開口した略箱型に形成されており、底面から内部側へ折り曲げられた接続部２１１を備えている。 First, the structure of the crimp terminal 20 formed by bending a plate-shaped substrate will be briefly described with reference to FIG.
The box portion 21 is formed in a substantially box shape with the front end side Xa open, and includes a connection portion 211 bent from the bottom surface to the inside.

このボックス部２１は、図示省略する雄型の圧着端子の接続タブを、開口した先端側Ｘａ側から挿通することで、接続部２１１と上記接続タブとが接触し、雄型の圧着端子と導通可能に接続することが可能である。
トランジション部２２は、ボックス部２１と圧着部２３との間に介在し、ボックス部２１と圧着部２３とを連結している。 In this box portion 21, the connection tab of a male crimp terminal (not shown) is inserted from the open front end side Xa side, so that the connection portion 211 and the above-mentioned connection tab come into contact with each other and are electrically connected to the male crimp terminal. It is possible to connect.
The transition portion 22 is interposed between the box portion 21 and the crimp portion 23, and connects the box portion 21 and the crimp portion 23.

圧着部２３は、導体露出部１３を圧着する導体圧着部２４と、被覆先端部１４を圧着する被覆圧着部２５とを、先端側Ｘａからこの順に配置して一体に構成しており、導体圧着部２４と被覆圧着部２５とを一体的に断面Ｕ字状に形成している。   The crimping portion 23 is configured by integrally arranging a conductor crimping portion 24 for crimping the conductor exposed portion 13 and a covering crimping portion 25 for crimping the covering tip portion 14 in this order from the tip side Xa. The portion 24 and the covering crimp portion 25 are integrally formed in a U-shaped cross section.

断面Ｕ字状に形成された圧着部２３は、内面２３１と電線先端部１０ａとが密着するように、導体露出部１３の先端側Ｘａから被覆先端部１４までを一体的に圧着する。
なお、圧着端子２０は、ボックス部２１を用いた雌型の圧着端子に限らず、例えば、接続タブを用いた雄型の圧着端子であってもよい。 The crimp portion 23 formed in a U-shaped cross section integrally crimps from the tip side Xa of the conductor exposed portion 13 to the coated tip portion 14 so that the inner surface 231 and the electric wire tip portion 10a are in close contact with each other.
The crimp terminal 20 is not limited to the female crimp terminal using the box portion 21, and may be, for example, a male crimp terminal using a connection tab.

続いて、以上のように構成する圧着端子２０の圧着部２３の構成について、平面展開した板状の圧着端子２０を用いて、図３（ｂ）を用いて詳細に説明する。
圧着端子２０を構成する圧着部２３は、上述のように導体圧着部２４及び被覆圧着部２５とで構成されており、導体圧着部２４の内面２３１に、幅方向Ｙに伸びるセレーション２６を軸方向Ｘに沿って３つ備えるとともに、シート状の止水材２７を備えている。 Next, the configuration of the crimp portion 23 of the crimp terminal 20 configured as described above will be described in detail with reference to FIG.
The crimp portion 23 that constitutes the crimp terminal 20 is composed of the conductor crimp portion 24 and the covering crimp portion 25 as described above, and the serration 26 extending in the width direction Y is axially formed on the inner surface 231 of the conductor crimp portion 24. In addition to having three along X, a sheet-like waterproof material 27 is provided.

導体圧着部２４の幅方向Ｙの長さは、導体１１の外周の長さより長く形成されており、被覆圧着部２５の幅方向Ｙの長さは、絶縁被覆１２の外周の長さより長く形成されている。そして、導体圧着部２４の幅方向Ｙの長さは、被覆圧着部２５の幅方向Ｙの長さより短く形成されている。
つまり、導体圧着部２４と被覆圧着部２５とは、幅方向Ｙの長さが異なる段差状に形成されている。 The conductor crimping portion 24 has a length in the width direction Y longer than the outer circumference of the conductor 11, and the covering crimping portion 25 has a width direction Y longer than the outer circumference of the insulating coating 12. ing. The length of the conductor crimping portion 24 in the width direction Y is formed to be shorter than the length of the covering crimping portion 25 in the width direction Y.
That is, the conductor crimping portion 24 and the coating crimping portion 25 are formed in a stepped shape having different lengths in the width direction Y.

セレーション２６は、導体圧着部２４の内面２３１から板厚方向に窪んだ凹状に形成されるとともに（図２（ｂ）参照）、圧着部２３の幅方向Ｙに伸びるように形成されている。このセレーション２６の端部は、一端部側Ｙａにおいて、導体圧着部２４の端部と離間しており、他端部側Ｙｂにおいて、導体圧着部２４の端部と一致している。つまり、セレーション２６は、他端部側Ｙｂに偏った態様で配置されている。   The serration 26 is formed in a concave shape that is recessed in the plate thickness direction from the inner surface 231 of the conductor crimping portion 24 (see FIG. 2B), and is formed so as to extend in the width direction Y of the crimping portion 23. The end portion of the serration 26 is separated from the end portion of the conductor crimp portion 24 on the one end side Ya, and coincides with the end portion of the conductor crimp portion 24 on the other end side Yb. That is, the serrations 26 are arranged in a manner biased to the other end side Yb.

さらに、セレーション２６は、先端側Ｘａから他端側Ｘｂに沿って３つ配置して構成されており、先端側Ｘａから先端側セレーション２６１、中間セレーション２６２、及び他端側セレーション２６３としている。   Further, three serrations 26 are arranged along the front end side Xa to the other end side Xb, and are formed from the front end side Xa to the front end side serration 261, the intermediate serration 262, and the other end side serration 263.

なお、セレーション２６は、本実施形態において板厚方向に窪んだ凹状に形成したが、板厚方向に突出する凸状のセレーションであってもよいし、例えば、一端部側Ｙａから他端部側Ｙｂに向けて断続的に複数配置したセレーションであってもよい。さらには、セレーション２６を軸方向に沿って３つ配置することのみならず、適宜の数のセレーション２６を配置してもよい。また、セレーション２６は、他端部側Ｙｂに偏った態様であれば、他端部側Ｙｂの端部を導体圧着部２４の端部と一致させることだけに限らず、わずかに離間させてもよい。   In addition, although the serration 26 is formed in a concave shape that is recessed in the plate thickness direction in the present embodiment, it may be a convex serration that protrudes in the plate thickness direction, for example, from the one end side Ya to the other end side. It may be a serration in which a plurality of pieces are intermittently arranged toward Yb. Furthermore, not only three serrations 26 are arranged along the axial direction, but an appropriate number of serrations 26 may be arranged. Further, if the serration 26 is biased toward the other end side Yb, the serration 26 is not limited to be aligned with the end of the conductor crimping portion 24 at the end of the other end Yb, and may be slightly separated. Good.

止水材２７は、セレーション２６の先端側Ｘａに配置した止水材先端部２７１、セレーション２６より他端側Ｘｂに配置した止水材他端部２７２、及び止水材先端部２７１と止水材他端部２７２とを軸方向Ｘに沿って連結する止水材連結部２７３とで構成されている。   The water blocking material 27 is a water blocking material tip portion 271 arranged on the tip side Xa of the serration 26, a water blocking material other end portion 272 arranged on the other end side Xb of the serration 26, and a water blocking material tip portion 271 and water blocking. The other end portion 272 of the material is connected to the water blocking material connecting portion 273 which is connected in the axial direction X.

止水材先端部２７１は、導体圧着部２４の一端部側Ｙａの端部から他端部側Ｙｂの端部にわたって伸びるとともに、導体圧着部２４の先端側Ｘａの端部から先端側セレーション２６１にわたって配置され、先端側セレーション２６１に掛けられている。つまり、止水材先端部２７１は、先端側セレーション２６１に係止した態様で配置されている。   The water blocking material tip portion 271 extends from the end portion on the one end portion side Ya of the conductor crimp portion 24 to the end portion on the other end portion side Yb, and extends from the tip end side Xa end of the conductor crimp portion 24 to the tip side serration 261. It is arranged and hung on the front side serration 261. That is, the water blocking material tip portion 271 is arranged so as to be locked to the tip side serration 261.

止水材他端部２７２は、他端側セレーション２６３より他端側Ｘｂにおける導体圧着部２４と、後述する非配置部２８を除く被覆圧着部２５の全体とに配置されている。
止水材連結部２７３は、セレーション２６が形成されていない導体圧着部２４の一端部側Ｙａにおいて軸方向に沿って延設され、止水材先端部２７１及び止水材他端部２７２を連結している。 The other end of the water blocking material 272 is arranged on the conductor crimping portion 24 on the other end side Xb with respect to the other end side serration 263, and on the entire covering crimping portion 25 excluding a non-arrangement portion 28 described later.
The water blocking material connecting portion 273 is extended along the axial direction on the one end side Ya of the conductor crimping portion 24 where the serrations 26 are not formed, and connects the water blocking material front end portion 271 and the water blocking material other end portion 272. is doing.

つまり、止水材先端部２７１、止水材他端部２７２、及び止水材連結部２７３で構成する止水材２７は、中間セレーション２６２、他端側セレーション２６３、及び後述する非配置部２８を除く圧着部２３の内面２３１全体に配置されている。
なお、止水材２７は、圧着した際に止水性を有していれば、シート状のみならず、例えば、圧着部２３に合成樹脂を内面２３１に固着させたりを塗布したりしたものであってもよい。 That is, the water blocking material 27 configured by the water blocking material front end portion 271, the water blocking material other end portion 272, and the water blocking material connecting portion 273 includes the intermediate serration 262, the other end side serration 263, and a non-arrangement portion 28 described later. Are arranged on the entire inner surface 231 of the crimp portion 23.
Note that the water blocking material 27 is not limited to a sheet shape as long as it has water blocking properties when it is pressure-bonded, and is, for example, a material in which a synthetic resin is fixed to the pressure-bonding portion 23 on the inner surface 231 or applied. May be.

以上のように構成した圧着端子２０は、圧着部２３を断面Ｕ字状に折り曲げた状態で、内面２３１に電線先端部１０ａを配置し、図示省略する圧着機を用いて、電線先端部１０ａを囲繞するように管状に巻き回された後、圧着される。   In the crimp terminal 20 configured as described above, the wire tip portion 10a is arranged on the inner surface 231 in a state where the crimp portion 23 is bent in a U-shaped cross section, and the wire tip portion 10a is attached by using a crimping machine (not shown). After being wound in a tubular shape so as to surround it, it is crimped.

詳述すると、圧着部２３は、図４（ａ）から図４（ｃ）に示すように、上記圧着機によって電線先端部１０ａを囲繞するように管状に折り曲げられる。このとき、圧着部２３は、他端部側Ｙｂの径外側に重なる重合部分２３２を一端部側Ｙａに有するとともに、重合部分２３２の径内側に重なる被重合部分２３３を有する、いわゆる寿司巻き管状となる。   More specifically, the crimping portion 23 is bent into a tubular shape so as to surround the electric wire tip portion 10a by the crimping machine, as shown in FIGS. 4 (a) to 4 (c). At this time, the crimping portion 23 has a overlapped portion 232 radially outside of the other end side Yb on the one end side Ya, and has a polymerized portion 233 overlapping inside of the overlapped portion 232, which is a so-called sushi roll tubular shape. Become.

そして、重合部分２３２のうち、導体圧着部２４に対応する部分を導体側重合部分２４１とするとともに、被覆圧着部２５に対応する部分を被覆側重合部分２５１とし、被重合部分２３３のうち、導体圧着部２４に対応する部分を導体側被重合部分２４２とするとともに、被覆圧着部２５に対応する部分を被覆側被重合部分２５２とする。   Of the overlapped portion 232, the portion corresponding to the conductor crimping portion 24 is the conductor-side overlapped portion 241, and the portion corresponding to the covering crimping portion 25 is the covering side overlapping portion 251. The portion corresponding to the crimp portion 24 is the conductor-side polymerized portion 242, and the portion corresponding to the coated crimp portion 25 is the coating-side polymerized portion 252.

そして、圧着部２３は、図２（ａ）及び図２（ｂ）に示すように、導体圧着部２４を導体１１に密着するように圧着されるとともに、被覆圧着部２５を絶縁被覆１２に密着するように圧着される。このとき、導体圧着部２４は、被覆圧着部２５よりも縮径した態様となり、さらには、上記圧着機による圧着によって先端側Ｘａに封止部２４３が形成される。   Then, as shown in FIGS. 2A and 2B, the crimping portion 23 is crimped so that the conductor crimping portion 24 adheres to the conductor 11, and the covering crimping portion 25 adheres to the insulating coating 12. It is crimped so that At this time, the conductor crimping portion 24 has a diameter smaller than that of the covering crimping portion 25, and further, the sealing portion 243 is formed on the tip side Xa by the crimping by the crimping machine.

また、圧着部２３は、止水材２７が配置されない非配置部２８を、被覆圧着部２５の一端部側Ｙａである被覆側重合部分２５１に設けている。つまり、この管状状態の圧着部２３の非配置部２８においては、止水材２７を介さずに被覆側重合部分２５１と被覆側被重合部分２５２とが密着する態様となる。   Further, in the crimping portion 23, the non-arrangement portion 28 in which the water blocking material 27 is not arranged is provided in the coating side overlapping portion 251 which is the one end side Ya of the coating crimping portion 25. That is, in the non-arranged portion 28 of the crimping portion 23 in the tubular state, the covering side polymerized portion 251 and the covering side polymerized portion 252 are in close contact with each other without the water blocking material 27.

上述で説明した圧着端子２０は、内面２３１にセレーション２６を設けた導体圧着部２４と、被覆圧着部２５とで構成した圧着部２３を備え、圧着部２３の内面２３１に、先端側セレーション２６１に掛かる止水材２７を設けたことで、止水材２７の位置ズレが生じることを抑制できる。   The crimp terminal 20 described above includes the crimp portion 23 configured by the conductor crimp portion 24 having the serration 26 on the inner surface 231 and the covering crimp portion 25. The inner surface 231 of the crimp portion 23 has the tip serration 261. By providing the hanging water stopping material 27, it is possible to suppress the positional deviation of the water stopping material 27.

詳述すると、圧着部２３の内面２３１に、先端側セレーション２６１に掛かる止水材２７を設けたことで、先端側セレーション２６１に止水材２７が係止する態様となるため、圧着部２３で電線先端部１０ａを囲繞するように圧着しても、止水材２７の位置ズレが生じることを抑制することができる。
従って、寿司巻き管状となる圧着部２３の内部への水分の侵入を防止することができ、圧着端子２０の止水性を向上させることができる。 More specifically, by providing the water blocking material 27 that hangs on the tip side serrations 261 on the inner surface 231 of the crimping portion 23, the water blocking material 27 is locked to the tip side serrations 261. Even if the wire tip portion 10a is crimped so as to surround it, it is possible to suppress the positional deviation of the water blocking material 27.
Therefore, it is possible to prevent moisture from entering the inside of the pressure-bonding portion 23 that is in the form of a sushi roll, and improve the waterproofness of the pressure-bonding terminal 20.

また、先端側セレーション２６１に止水材２７の止水材先端部２７１を掛けて配置したことで、止水材先端部２７１の位置ズレが生じることを抑制できるため、特に導体圧着部２４の先端側Ｘａに位置する止水材先端部２７１を精度よく所定の位置に配置することができる。
従って、寿司巻き管状となる圧着部２３の、特に導体圧着部２４の先端側Ｘａからの水分の浸入を防止することができる。 In addition, by disposing the water blocking material tip portion 271 of the water blocking material 27 so as to hang on the tip side serrations 261, it is possible to suppress the positional deviation of the water blocking material tip portion 271. The water blocking material tip portion 271 located on the side Xa can be accurately arranged at a predetermined position.
Therefore, it is possible to prevent the infiltration of water from the pressure-bonding portion 23 in the shape of a sushi roll, particularly from the tip side Xa of the conductor pressure-bonding portion 24.

また、導体圧着部２４の一端部側Ｙａに、管状状態において他端部側Ｙｂの径外側に重なる導体側重合部分２４１を設けたことで、導体圧着部２４が寿司巻き管状となるため、圧着状態において導体圧着部２４の径外側に位置する一端部側Ｙａである導体側重合部分２４１が他端部側Ｙｂと密着し、導体圧着部２４の周方向から圧着部２３の内部への水分の浸入を防止できる。つまり、導体圧着部２４の周方向からの止水性を向上させることができる。   In addition, since the conductor-side overlapped portion 241 that overlaps the radially outer side of the other end side Yb in the tubular state is provided on the one end side Ya of the conductor crimp section 24, the conductor crimp section 24 becomes a sushi roll tubular shape. In this state, the conductor-side overlapped portion 241 that is the one end portion side Ya located on the radially outer side of the conductor crimp portion 24 comes into close contact with the other end portion side Yb, and moisture from the circumferential direction of the conductor crimp portion 24 into the crimp portion 23 is absorbed. Intrusion can be prevented. That is, the waterproof property of the conductor crimping portion 24 in the circumferential direction can be improved.

また、導体圧着部２４の他端部までセレーション２６を延設したことで、導体圧着部２４の周方向の止水性を確保しつつ、導通性を向上させることができる。
詳述すると、圧着部２３の管状状態において、導体圧着部２４の導体側重合部分２４１の径内側に位置する他端部までセレーション２６を延設したことで、重合する導体圧着部２４の一端部側Ｙａと他端部側Ｙｂとの間にセレーション２６が配置されて隙間が生じることを防止し、導体圧着部２４の一端部側Ｙａと他端部側Ｙｂとが密着した圧着状態を得ることができる。 Further, by extending the serrations 26 to the other end of the conductor crimping portion 24, it is possible to improve the conductivity while ensuring the waterproofness of the conductor crimping portion 24 in the circumferential direction.
More specifically, in the tubular state of the crimping portion 23, the serration 26 is extended to the other end located inside the conductor-side overlapped portion 241 of the conductor crimping portion 24, so that one end of the conductor crimping portion 24 is overlapped. A serration 26 is arranged between the side Ya and the other end side Yb to prevent a gap from being formed, and to obtain a crimped state in which one end side Ya and the other end side Yb of the conductor crimping portion 24 are in close contact with each other. You can

さらに、一端部側Ｙａの径内側に重なる他端部までセレーション２６を延設した導体圧着部２４は、他端部までセレーション２６を延設していない導体圧着部よりも、セレーション２６と導体露出部１３との接触領域を拡大させることができる。
従って、導体圧着部２４の周方向の止水性を確保しつつ、導体圧着部２４と導体露出部１３との導通性を向上させることができる。 Further, the conductor crimping portion 24 in which the serrations 26 extend to the other end portion that overlaps the inner diameter of the one end portion side Ya is larger than the conductor crimping portion in which the serrations 26 do not extend to the other end portion. The contact area with the portion 13 can be enlarged.
Therefore, it is possible to improve the electrical continuity between the conductor crimping portion 24 and the conductor exposed portion 13 while ensuring the waterproofness of the conductor crimping portion 24 in the circumferential direction.

上述のような効果を奏する圧着端子２０と被覆電線１０とで構成する電線接続構造体３は、被覆電線１０と圧着端子２０とを、止水材２７の位置ズレが生じることを抑制しながら圧着することができるため、確実な止水性を有することができる。   The electric wire connection structure 3 including the crimp terminal 20 and the covered electric wire 10 having the above-described effects crimps the covered electric wire 10 and the crimp terminal 20 while suppressing the positional deviation of the water blocking material 27. Therefore, it is possible to have a reliable waterproofing property.

また、導体圧着部２４の先端側Ｘａに、圧着によって封止された封止部２４３を設けたことで、管状となる導体圧着部２４の先端側Ｘａから圧着部２３の内部への水分の浸入を、より確実に防止することができる。   In addition, since the sealing portion 243 sealed by crimping is provided on the tip side Xa of the conductor crimping portion 24, the infiltration of water from the tip side Xa of the conductor crimping portion 24 in a tubular shape into the inside of the crimping portion 23. Can be prevented more reliably.

また、アルミニウム系材料で導体１１を構成したことで、電線接続構造体３を、例えば、銅系材料で構成した導体を有する電線接続構造体よりも軽量化することができる。
しかも、被覆電線１０と圧着部２０との圧着状態において、止水材２７の位置ズレを防止することができるため、管状の圧着部２３の内部への水分の浸入を防止し、導体１１とイオン化傾向が異なる銅系材料で圧着部２３を構成しても、導体露出部１３と導体圧着部２４との接触部分に、水分が付着して電食が生じることを防止できる。 Further, since the conductor 11 is made of the aluminum-based material, the electric wire connection structure 3 can be made lighter than, for example, the electric wire connection structure having the conductor made of the copper-based material.
Moreover, in the crimping state of the covered electric wire 10 and the crimping portion 20, it is possible to prevent the position of the water blocking material 27 from being displaced, so that it is possible to prevent water from entering the inside of the tubular crimping portion 23 and to ionize the conductor 11 and Even if the crimp portion 23 is formed of copper-based materials having different tendencies, it is possible to prevent water from adhering to the contact portion between the conductor exposed portion 13 and the conductor crimp portion 24 to cause electrolytic corrosion.

上述のような効果を奏する電線接続構造体３とコネクタ２とで構成するワイヤハーネス１は、被覆電線１０と圧着端子２０とを、止水材２７の位置ズレが生じることを抑制しながら圧着して、確実な止水性を有する電線接続構造体３を用いて構成することができる。   In the wire harness 1 configured by the electric wire connection structure 3 and the connector 2 having the above-described effects, the covered electric wire 10 and the crimp terminal 20 are crimped while suppressing the positional deviation of the water blocking material 27. Thus, the electric wire connection structure 3 having a reliable waterproof property can be used.

上述のように構成したワイヤハーネス１の圧着端子２０に対する他の実施形態として、第２実施形態の圧着端子２０ａ、及び第３実施形態の圧着端子２０ｂについて以下に説明する。
ただし、上述した第１実施形態の圧着端子２０と同様の構成については、同様の符号を付し、説明を省略する。 As other embodiments of the crimp terminal 20 of the wire harness 1 configured as described above, the crimp terminal 20a of the second embodiment and the crimp terminal 20b of the third embodiment will be described below.
However, the same components as those of the crimp terminal 20 according to the first embodiment described above are designated by the same reference numerals, and description thereof will be omitted.

（第２実施形態）
この発明の第２実施形態を、図５を用いて説明する。
図５（ａ）は、第２実施形態の圧着端子２０ａを平面展開した状態の概略平面図を示し、図５（ｂ）は、第２実施形態の管状状態の圧着部２３ａのみをあらわす概略斜視図を示している。 (Second embodiment)
A second embodiment of the invention will be described with reference to FIG.
FIG. 5A is a schematic plan view of the crimp terminal 20a according to the second embodiment in a flattened state, and FIG. 5B is a schematic perspective view showing only the crimp portion 23a in the tubular state according to the second embodiment. The figure is shown.

第２実施形態における圧着端子２０ａの圧着部２３ａは、図５（ａ）に示すように、平面展開した状態において、先端側セレーション２６１よりも先端側Ｘａにおける導体側被重合部分２４２に、平面視略矩形となるように切り欠いた切り欠き部２４４を形成している。   As shown in FIG. 5A, the crimping portion 23a of the crimping terminal 20a in the second embodiment is in a plane developed state, in a plan view, on the conductor-side overlapped portion 242 on the tip side Xa with respect to the tip side serration 261. A notch 244 is formed so as to have a substantially rectangular shape.

また、圧着部２３ａは、図５（ａ）に示すように、平面展開した状態において、導体圧着部２３ａの一端部側Ｙａにおける先端側Ｘａの端部から、先端側Ｘａに向けて突出する突出部２９を設けている。
この突出部２９は、図５（ｂ）に示すように、図示省略する電線先端部１０ａに囲繞するように管状に巻き回された状態において、径内側に向けて曲げられている。 In addition, as shown in FIG. 5A, the crimping portion 23a is a protrusion that projects toward the tip side Xa from the end portion of the tip side Xa in the one end side Ya of the conductor crimping portion 23a in the state of being developed in a plane. A part 29 is provided.
As shown in FIG. 5B, the protruding portion 29 is bent inward in the radial direction in a state in which the protruding portion 29 is wound in a tubular shape so as to surround the electric wire tip portion 10a (not shown).

上述で説明した圧着端子２０ａは、導体圧着部２４の先端側Ｘａの端部から先端側Ｘａに突出するとともに、管状状態となる圧着部２３の径内側に突出する突出部２９を設けたことで、先端側セレーション２６１に止水材先端部２７１を係止させることに加え、管状状態となる圧着部２３ａの径内側に突出する突出部２９に止水材先端部２７１が突き当たることで、圧着部２３ａの先端側Ｘａから外部に向けて止水材２７の位置ズレが生じることを防止できる。
これにより、導体圧着部２４の先端側Ｘａから圧着部２３ａの内部への水分の浸入を、より確実に防止することができる。 The crimp terminal 20a described above is provided with the protruding portion 29 that protrudes from the end portion on the tip side Xa of the conductor crimp portion 24 to the tip side Xa, and that projects to the inside of the diameter of the crimp portion 23 in the tubular state. In addition to locking the water-stopping material tip portion 271 to the tip-side serration 261, the water-stopping material tip portion 271 abuts on the protruding portion 29 projecting radially inward of the pressure-bonding portion 23a in the tubular state. It is possible to prevent the displacement of the water blocking material 27 from the tip side Xa of 23a toward the outside.
As a result, it is possible to more reliably prevent water from entering the inside of the crimp portion 23a from the tip side Xa of the conductor crimp portion 24.

また、先端側セレーション２６１よりも先端側Ｘａにおける導体側被重合部分２４２に切り欠き部２４４を設けたことで、管状状態において導体側重合部分２４１の径内側に重なる導体側被重合部分２４２の切り欠き部２４４に、圧着部２３ａと止水材２７の板厚分隙間が生じるため、圧着によって潰される止水材２７の止水材先端部２７１が切り欠き部２４４に逃げることができる。
これにより、突出部２９と切り欠き部２４４とが協働して、圧着部２３ａの先端側Ｘａから外部止水材先端部２７１が潰れ出ることを確実に防止できる。 Further, since the notch 244 is provided in the conductor-side overlapped portion 242 on the tip side Xa with respect to the tip-side serration 261, the conductor-side overlapped portion 242 that overlaps the inner diameter of the conductor-side overlapped portion 241 in the tubular state is cut. Since a gap corresponding to the plate thickness between the crimping portion 23a and the water blocking material 27 is formed in the cutout portion 244, the water blocking material tip portion 271 of the water blocking material 27 that is crushed by crimping can escape to the cutout portion 244.
As a result, it is possible to reliably prevent the external water blocking material tip portion 271 from collapsing from the tip side Xa of the crimp portion 23a by the cooperation of the protruding portion 29 and the cutout portion 244.

なお、先端側セレーション２６１よりも先端側Ｘａの導体側被重合部分２４２に切り欠き部２４４を設けず、例えば、止水材先端部２７１を配置しない非配置部を設けてもよい。
この場合においても、管状状態において導体側重合部分２４１の径内側に重なる導体側被重合部分２４２の非配置部に、止水材先端部２７１の板厚分隙間が生じるため、圧着によって潰される止水材先端部２７１がその隙間に逃げることができる。これにより、圧着部２３ａの先端側Ｘａから外部に止水材先端部２７１が潰れ出ることを防止できる。 Note that the conductor-side overlapped portion 242 on the tip side Xa with respect to the tip side serration 261 may not be provided with the cutout portion 244, and may be provided with, for example, a non-arranged portion in which the water blocking material tip portion 271 is not arranged.
Also in this case, in the tubular state, a gap corresponding to the plate thickness of the water blocking material tip portion 271 is generated in the non-arranged portion of the conductor-side overlapped portion 242 that overlaps the inner diameter of the conductor-side overlap portion 241. The water material tip portion 271 can escape into the gap. As a result, it is possible to prevent the water blocking material tip portion 271 from being crushed to the outside from the tip side Xa of the crimp portion 23a.

（第３実施形態）
この発明の第３実施形態を、図６を用いて説明する。
図６（ａ）は、第３実施形態の圧着端子２０ｂを平面展開した状態の概略平面図を示し、図６（ｂ）は、管状状態の導体圧着部２４ｂの概略断面図を示し、図６（ｃ）は、管状状態の被覆圧着部２５ｂの概略断面図を示している。 (Third Embodiment)
A third embodiment of the present invention will be described with reference to FIG.
FIG. 6A shows a schematic plan view of the crimp terminal 20b of the third embodiment in a flattened state, and FIG. 6B shows a schematic cross-sectional view of the conductor crimp portion 24b in a tubular state. (C) has shown the schematic sectional drawing of the covering pressure bonding part 25b of a tubular state.

第３実施形態における圧着端子２０ｂの圧着部２３ｂは、図６（ａ）に示すように、平面展開した状態において、導体圧着部２４ｂの幅方向Ｙの長さより、被覆圧着部２５ｂの幅方向Ｙの長さが短くなるように形成されている。   As shown in FIG. 6A, the crimping portion 23b of the crimping terminal 20b in the third embodiment is in a flattened state, and the conductor crimping portion 24b is longer than the conductor crimping portion 24b in the width direction Y in the width direction Y. Is formed to be short.

この圧着部の導体圧着部２４ｂの他端側Ｘｂには、止水材２７を配置しない非配置部２８ｂを設けている。つまり、この非配置部２８ｂは、導体圧着部２４ｂと被覆圧着部２５ｂとの境界部分における導体側被重合部２４２に設けられている。   On the other end side Xb of the conductor crimping portion 24b of this crimping portion, a non-arrangement portion 28b in which the water blocking material 27 is not arranged is provided. That is, the non-arranged portion 28b is provided in the conductor-side overlapped portion 242 in the boundary portion between the conductor crimping portion 24b and the cover crimping portion 25b.

このように形成した圧着部２３ｂは、管状状態において、図６（ｂ）及び図６（ｃ）に示すように、導体圧着部２４ｂの一端部側Ｙａに、他端部側Ｙｂの径外側に重なる導体側重合部分２４１を有し、被覆圧着部２５ｂの幅方向Ｙの両端部同士を突き当てて形成している。つまり、導体圧着部２４ｂは、いわゆる寿司巻き管状に形成され、被覆圧着部２５ｂは、いわゆる突き当て管状に形成されている。   In the tubular state, the crimping portion 23b formed in this manner is located on one end side Ya of the conductor crimping portion 24b and on the radially outer side of the other end side Yb as shown in FIGS. 6B and 6C. It has overlapping conductor-side overlapping portions 241 and is formed by abutting both end portions of the covering crimp portion 25b in the width direction Y. That is, the conductor crimp portion 24b is formed in a so-called sushi roll tubular shape, and the covering crimp portion 25b is formed in a so-called abutting tubular shape.

そして、圧着部２３ｂは、上記圧着機によって、導体圧着部２４ｂを寿司巻き管状の状態で縮径されるとともに、被覆圧着部２５ｂを突き当て管状の状態で縮径され、電線先端部１０ａと密着するように圧着される。   The conductor crimping portion 24b is reduced in diameter in a sushi roll tubular state by the crimping machine, and the covering crimping portion 25b is butted in a tubular state to reduce the diameter of the crimping portion 23b so as to be in close contact with the wire tip portion 10a. It is crimped so that

上述で説明した圧着端子２０ｂは、被覆圧着部２５ｂ幅方向Ｙの長さを、管状状態において幅方向Ｙの両端部が突き当たる長さとしたことで、管状状態における被覆圧着部２５ｂは、突き当て管状となるため、内面２３１に止水材２７を備えた被覆圧着部２５ｂであっても、例えば、管状状態において寿司巻き管状となる被覆圧着部よりも、縮径させることができる。
これにより、従来から用いられているコネクタ２のキャビティ２ａに圧着端子２０ｂを装着することができる。 In the crimp terminal 20b described above, the length of the covering crimp portion 25b in the width direction Y is set such that both ends in the width direction Y abut in the tubular state. Therefore, even the coated crimping portion 25b having the water blocking material 27 on the inner surface 231 can be made smaller in diameter than, for example, the coated crimping portion which has a sushi roll tubular shape in a tubular state.
As a result, the crimp terminal 20b can be mounted in the cavity 2a of the conventionally used connector 2.

また、導体圧着部２４ｂの導体側被重合部分２４１の他端側Ｘｂ、つまり、被重合部分２３３における導体圧着部２４ｂと被覆圧着部２５ｂとの境界部分に、止水材２７を配置しない非配置部２８ｂを設けたことで、止水性を向上させながらも、圧着状態における圧着部２３ｂの管径が拡大することを抑制できる。   In addition, the water blocking material 27 is not arranged at the other end side Xb of the conductor-side polymerized portion 241 of the conductor crimp portion 24b, that is, at the boundary portion between the conductor crimp portion 24b and the coating crimp portion 25b in the polymerized portion 233. By providing the portion 28b, it is possible to suppress the enlargement of the tube diameter of the crimping portion 23b in the crimped state while improving the waterproofness.

詳述すると、管状状態の圧着部において、導体圧着部２４ｂを寿司巻き管状とするとともに、被覆圧着部２５ｂを突き当て管状としたことで、導体圧着部２４ｂと被覆圧着部２５ｂとの境界部分は、寿司巻き管状と突き当て管状との変位部となり、圧着部２３ｂで最も管径が大きくなるが、境界部分に非配置部２８ｂを設けたことで、境界部分の管径が拡大することを抑制できる。   More specifically, in the tubular crimping section, the conductor crimping section 24b has a sushi roll tubular shape, and the covering crimping section 25b has an abutting tubular shape. , The sushi roll tubular shape and the abutting tubular shape are displaced portions, and the pipe diameter is the largest at the crimping portion 23b, but the provision of the non-arranged portion 28b at the boundary portion suppresses the expansion of the pipe diameter at the boundary portion. it can.

これにより、従来から用いられているコネクタ２のキャビティ２ａに圧着端子２０ｂをより確実に装着することができる。なお、非配置部２８ｂは、圧着による止水材２７の逃げ部としても機能するため、止水材２７が外部へ潰れ出ることを防止できる。   As a result, the crimp terminal 20b can be more reliably mounted in the cavity 2a of the connector 2 that has been conventionally used. Since the non-arranged portion 28b also functions as an escape portion for the water blocking material 27 by pressure bonding, it is possible to prevent the water blocking material 27 from being crushed to the outside.

この発明の構成と、上述の実施形態との対応において、
この発明の接触側の面は、実施形態の内面２３１に対応するが、
この発明は、上述の実施形態の構成のみに限定されるものではなく、多くの実施の形態を得ることができる。 In the correspondence between the configuration of the present invention and the above-described embodiment,
The contact side surface of the present invention corresponds to the inner surface 231 of the embodiment,
The present invention is not limited to the configurations of the above-described embodiments, and many embodiments can be obtained.

上述の説明において、止水材２７は、先端側セレーション２６１に掛けて配置した止水材先端部２７１を備えているが、例えば、先端側セレーション２６１、中間セレーション２６２、及び他端側セレーション２６３の一端部側Ｙａに掛けて配置した止水材連結部を備えてもよいし、他端側セレーション２６３に掛けて配置した止水材他端部を備えてもよい。   In the above description, the water blocking material 27 is provided with the water blocking material tip portion 271 that is arranged so as to be hung on the tip side serration 261, but for example, the tip side serration 261, the intermediate serration 262, and the other end side serration 263 are provided. The water blocking material connecting portion may be provided so as to be hung on the one end side Ya, or the other end of the water blocking material may be provided so as to be hung on the other end side serration 263.

さらに、止水材２７は、管状となる圧着部２３の内部への水分の侵入を防止できれば、上述のような形状のみならず、適宜設定した形状であってもよい。
例えば、圧着によって止水材２７が圧着部２３の外部に潰れ出ることを防止するために、圧着部２３の外形よりも一回り小さく形成してもよい。 Further, the water blocking material 27 may have not only the above-described shape but also a properly set shape as long as it can prevent the entry of water into the pressure-bonding portion 23 having a tubular shape.
For example, in order to prevent the water blocking material 27 from being crushed to the outside of the crimp portion 23 by crimping, it may be formed to be slightly smaller than the outer shape of the crimp portion 23.

さらにまた、止水材２７の止水材先端部２７１を、導体圧着部２４の一端部側Ｙａから他端部側Ｙｂまで配置することだけに限らず、例えば、導体圧着部２４の一端部側Ｙａから他端部側Ｙｂの端部と離間する位置まで配置してもよい。これにより、導体圧着部２４の他端部側Ｙａは、止水材先端部２７１が配置されず、封止部２４３を形成する際の圧着によって潰れる止水材先端部２７１が、導体圧着部２４の他端部側Ｙｂに逃げることができ、圧着部２３の先端側Ｘａから止水材先端部２７１が潰れ出ることを防止できる。   Furthermore, the water-stopping material front end portion 271 of the water-stopping material 27 is not limited to being arranged from the one end side Ya to the other end side Yb of the conductor crimping portion 24, and, for example, one end side of the conductor crimping portion 24. You may arrange | position from Ya to the position spaced apart from the edge part of the other end side Yb. As a result, on the other end side Ya of the conductor crimping portion 24, the water blocking material tip portion 271 is not arranged, and the water blocking material tip portion 271 crushed by crimping when the sealing portion 243 is formed is the conductor crimping portion 24. Can be escaped to the other end side Yb, and the water blocking material tip portion 271 can be prevented from being crushed from the tip side Xa of the crimp portion 23.

また上述の説明において幅方向Ｙの長さを寿司巻き管状となる長さとした第１実施形態の被覆圧着部２５は、被覆側重合部分２５１及び被覆側被重合部分２５２の板厚を他の部分の半分としてもよい。   Further, in the above description, the coating pressure-bonding portion 25 of the first embodiment in which the length in the width direction Y is a length that forms a sushi roll tubular shape has the coating-side polymerized portion 251 and the coating-side polymerized portion 252 with different plate thicknesses. May be half of

これにより、管状状態における被覆側重合部分２５１と被覆側被重合部分２５２とを重ね合わせた板厚は、他の部分の圧着部の板厚と同等となり、第３実施形態のような突き当て管状となる被覆圧着部２５ｂと同様の効果を奏することができる。   As a result, the plate thickness of the covering-side overlapped portion 251 and the covering-side overlapped portion 252 in the tubular state is equal to the plate thickness of the crimping portion of the other portion, and the abutting tube like the third embodiment. The same effect as that of the covering pressure-bonding portion 25b can be obtained.

また上述の説明において幅方向Ｙの両端部分が重合する重合部分２３２と被重合部分２３３との内面２３１に配置する止水材は、他の部分に配置した止水材よりも板厚を薄くしてもよい。これにより、止水材を設けない非配置部を設けることなく管状状態となる圧着部の管径を縮径することができる。   Further, in the above description, the water blocking material arranged on the inner surface 231 of the polymerized portion 232 and the polymerized portion 233 where both end portions in the width direction Y are polymerized is made thinner than the water blocking material disposed in other portions. May be. As a result, it is possible to reduce the diameter of the crimping portion in the tubular state without providing the non-arranged portion where the water blocking material is not provided.

また、上述の説明において、突出部２９は、平面展開した状態において、導体圧着部２３の一端部側Ｙａにおける先端側Ｘａの端部から、先端側Ｘａに向けて突出しているが、例えば、トランジション部２２と一端部との間における先端側Ｘａの端部から先端側Ｘａに向けて突出した突出部や、トランジション部２２の一部を打ち抜いて形成した突出部であってもよい。   Further, in the above description, the projecting portion 29 projects from the end portion on the tip end side Xa of the one end portion side Ya of the conductor crimping portion 23 toward the tip end side Xa in the state of being developed in a plane. It may be a protrusion protruding from the end on the tip side Xa between the part 22 and the one end toward the tip side Xa, or a protrusion formed by punching out a part of the transition part 22.

トランジション部２２の一部を打ち抜いて形成した突出部について詳述すると、平面展開した状態において、トランジション部２２の幅方向Ｙにおける略中間部分に突出部を設けてもよく、この場合の突出部は、他端側Ｘｂ以外を打ち抜いて、打ち抜いていない部分から径内側に向けて折り曲げて形成する。   The protrusion part formed by punching out a part of the transition part 22 will be described in detail. In the flattened state, the protrusion part may be provided at a substantially intermediate part in the width direction Y of the transition part 22. The parts other than the other end side Xb are punched out and bent from the non-punched part toward the inner diameter side.

１…ワイヤハーネス
２…コネクタ
３…電線接続構造体
１０…被覆電線
１１…導体
１２…絶縁被覆
２０，２０ａ，２０ｂ…圧着端子
２３，２３ａ，２３ｂ…圧着部
２４，２４ｂ…導体圧着部
２５，２４ｂ…被覆圧着部
２６…セレーション
２７…止水材
２８ａ，２８ｂ…非配置部
２９…突出部
２３１…内面
２３２…重合部分
２３３…被重合部分
２４３…封止部
２４４…切り欠き部
Ｘａ…先端側
Ｘｂ…他端側
Ｙ…幅方向
Ｙａ…一端部側
Ｙｂ…他端部側 DESCRIPTION OF SYMBOLS 1 ... Wire harness 2 ... Connector 3 ... Electric wire connection structure 10 ... Coated electric wire 11 ... Conductor 12 ... Insulation coating 20, 20a, 20b ... Crimp terminals 23, 23a, 23b ... Crimp part 24, 24b ... Conductor crimp part 25, 24b ... coating press-bonding portion 26 ... serration 27 ... water blocking material 28a, 28b ... non-arranged portion 29 ... protruding portion 231 ... inner surface 232 ... overlapping portion 233 ... overlapped portion 243 ... sealing portion 244 ... notch portion Xa ... tip side Xb ... other end side Y ... width direction Ya ... one end side Yb ... other end side

Claims (13)

導体が絶縁被覆で被覆され、前記導体の長手方向の先端側において所定長さの前記導体が前記絶縁被覆から露出した被覆電線における露出した前記導体より前記先端側から、前記絶縁被覆の先端部分までを一体的に囲繞して管状に圧着する圧着部を有する圧着端子であって、
前記圧着部が、
前記絶縁被覆を圧着する被覆圧着部と、
前記導体を圧着する導体圧着部とで構成され、
前記導体圧着部における前記被覆電線と接触する側である接触側の面において、
前記導体と接触する部分に前記長手方向と交差する幅方向に沿うとともに、前記長手方向に沿って所定の間隔を隔てて配置された複数のセレーションが設けられ、
複数配置された前記セレーションのうち後端側に配置された前記セレーションを後端側セレーションとし、
前記後端側セレーションより前記後端側と前記後端側セレーションとにわたるとともに、前記幅方向に沿って形成された止水材が設けられた
圧着端子。 A conductor is covered with an insulating coating, and the conductor having a predetermined length on the distal end side in the longitudinal direction of the conductor is exposed from the insulating coating. A crimp terminal having a crimp portion that integrally surrounds and crimps in a tubular shape,
The crimp portion is
A cover crimping portion for crimping the insulating coating,
And a conductor crimping portion for crimping the conductor,
On the surface of the contact side which is the side in contact with the covered electric wire in the conductor crimping portion ,
Together along the width direction crossing the longitudinal direction at a portion in contact with the front Symbol conductors, a plurality of serrations arranged at predetermined intervals along the longitudinal direction is provided,
Of the serrations arranged in plural, the serration arranged on the rear end side is the rear end side serration,
A crimp terminal which is provided with a water blocking material formed along the width direction while extending from the rear end side serration to the rear end side and the rear end side serration . 前記止水材は、
前記後端側セレーションより前記後端側と前記後端側セレーションとにわたるとともに、
前記幅方向に沿って形成されることに加えて、
前記導体圧着部の前記幅方向の一端部側から前記長手方向に沿って前記被覆圧着部側に延びる止水材連結部と、
該止水材連結部と前記先端側で連結するとともに、前記被覆圧着部における前記接触側の面に設けられた止水材他端部とを有する
請求項１に記載の圧着端子。 The waterproof material is
Along with the rear end side and the rear end side serration from the rear end side serration,
In addition to being formed along the width direction,
A waterproofing material connecting portion extending from the one end side in the width direction of the conductor crimping portion to the coating crimping portion side along the longitudinal direction,
The crimp terminal according to claim 1, wherein the crimp terminal is connected to the water blocking material connecting portion at the tip end side, and has another water blocking material other end portion provided on a surface of the covering crimping portion on the contact side. . 前記導体圧着部の前記幅方向の一端部側に、管状状態における他端部側の径外側に重なる重合部分が設けられ、On the one end side in the width direction of the conductor crimping portion, a superposed portion that overlaps the radially outer side of the other end side in a tubular state is provided,
前記導体圧着部の前記幅方向の他端部側に、管状状態において前記重合部分の径内側に重なる被重合部分が設けられたOn the other end side in the width direction of the conductor crimping portion, a portion to be polymerized that overlaps with a radially inner side of the overlapping portion in a tubular state is provided.
請求項２に記載の圧着端子。The crimp terminal according to claim 2. 前記セレーションが、前記導体圧着部の前記幅方向における他端まで延設された
請求項３に記載の圧着端子。 The serration extends to the other end of the conductor crimping portion in the width direction.
The crimp terminal according to claim 3. 前記接触側の面における前記導体圧着部の前記被重合部分に、前記止水材を配置しない非配置部が設けられた
請求項３又は４に記載の圧着端子。 A non-arranged portion in which the water blocking material is not arranged is provided in the overlapped portion of the conductor crimping portion on the contact side surface.
The crimp terminal according to claim 3. 前記セレーションよりも前記先端側における前記被重合部分に、前記圧着部を切り欠いた切り欠き部が設けられたA cutout portion, which is formed by cutting out the pressure-bonding portion, is provided in the portion to be polymerized on the tip side with respect to the serration.
請求項３から５のうちいずれか一項に記載の圧着端子。The crimp terminal according to any one of claims 3 to 5. 前記導体圧着部の前記先端側の端部から前記先端側に突出するとともに、管状状態となる前記圧着部の径内側に突出する突出部が設けられたA protruding portion is provided that protrudes from the end portion of the conductor crimping portion on the tip end side to the tip end side and also projects radially inside the crimping portion in a tubular state.
請求項１から６のうちいずれか一項に記載の圧着端子。The crimp terminal according to any one of claims 1 to 6. 前記被覆圧着部の前記幅方向の長さは、管状状態において前記幅方向の両端部が突き当たる長さである
請求項１から７のうちいずれか一項に記載の圧着端子。 The length of the width direction of the insulation crimp portion is crimped terminal according to any one of claims 1 to 7 which is the length of both end portions in the width direction abuts the tubular state. 請求項１から８のうちいずれか一項に記載の圧着端子と前記被覆電線とが圧着された
電線接続構造体。 An electric wire connection structure in which the crimp terminal according to any one of claims 1 to 8 and the covered electric wire are crimped. 前記導体圧着部の前記先端側に、圧着によって封止された封止部が設けられた
請求項９に記載の電線接続構造体。 The electric wire connection structure according to claim 9, wherein a sealing portion sealed by crimping is provided on the tip side of the conductor crimping portion. 前記導体が、アルミニウム系材料で構成された
請求項９又は１０に記載の電線接続構造体。 The electric wire connection structure according to claim 9 or 10, wherein the conductor is made of an aluminum-based material. 請求項９から１１のうちいずれか一項に記載の電線接続構造体を構成する圧着端子がコネクタに装着された
ワイヤハーネス。 A wire harness in which a crimp terminal constituting the electric wire connection structure according to any one of claims 9 to 11 is attached to a connector. 導体が絶縁被覆で被覆され、先端側において所定長さの前記導体が前記絶縁被覆から露出した被覆電線における露出した前記導体より前記先端側から、前記絶縁被覆の先端部分までを一体的に囲繞して管状に圧着する圧着部を有する圧着端子であって、
前記圧着部が、
前記絶縁被覆を圧着する被覆圧着部と、
前記導体を圧着するとともに、前記被覆電線と接触する側である接触側の面において前記導体と接触する部分にセレーションが設けられた導体圧着部とで構成され、
前記圧着部における前記接触側の面に、前記セレーションの一部に掛かる止水材が設けられ、
前記導体圧着部の幅方向の一端部側に、管状状態における他端部側の径外側に重なる重合部分が設けられ、
前記導体圧着部の前記他端部側を、管状状態において前記重合部分の径内側に重なる被重合部分とし、前記セレーションよりも前記先端側における前記被重合部分に、前記圧着部を切り欠いた切り欠き部が設けられた
圧着端子。

The conductor is covered with an insulating coating, and the conductor having a predetermined length on the tip side integrally surrounds from the tip side of the exposed conductor of the covered electric wire exposed from the insulating coating to the tip portion of the insulating coating. A crimp terminal having a crimp portion for crimping in a tubular shape,
The crimp portion is
A cover crimping portion for crimping the insulating coating,
While crimping the conductor, a conductor crimping portion provided with serrations in a portion in contact with the conductor on a contact side surface that is a side in contact with the covered electric wire,
A surface of the crimping portion on the contact side is provided with a water blocking material that hangs on a portion of the serration,
On the one end side in the width direction of the conductor crimping portion, there is provided a superposed portion that overlaps the radially outer side of the other end side in a tubular state,
The other end side of the conductor crimping portion is a portion to be polymerized that overlaps a radially inner side of the overlapping portion in a tubular state, and the portion to be overlapped on the tip side with respect to the serration is cut out by notching the crimping portion. Crimp terminal provided with a notch .

Images