JP2021034167A - Wiring harness - Google Patents
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- JP2021034167A JP2021034167A JP2019150792A JP2019150792A JP2021034167A JP 2021034167 A JP2021034167 A JP 2021034167A JP 2019150792 A JP2019150792 A JP 2019150792A JP 2019150792 A JP2019150792 A JP 2019150792A JP 2021034167 A JP2021034167 A JP 2021034167A
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- anticorrosion
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- 238000002788 crimping Methods 0.000 claims abstract description 172
- 238000005260 corrosion Methods 0.000 claims abstract description 158
- 239000004020 conductor Substances 0.000 claims abstract description 152
- 230000007797 corrosion Effects 0.000 claims abstract description 140
- 229910052751 metal Inorganic materials 0.000 claims abstract description 96
- 239000002184 metal Substances 0.000 claims abstract description 96
- 239000000463 material Substances 0.000 claims abstract description 94
- 230000013011 mating Effects 0.000 claims abstract description 22
- 229910000838 Al alloy Inorganic materials 0.000 claims description 10
- 229910052782 aluminium Inorganic materials 0.000 claims description 10
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 10
- 239000010949 copper Substances 0.000 claims description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 9
- 229910052802 copper Inorganic materials 0.000 claims description 9
- 229910000881 Cu alloy Inorganic materials 0.000 claims description 8
- 239000011248 coating agent Substances 0.000 description 19
- 238000000576 coating method Methods 0.000 description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
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- 150000003839 salts Chemical class 0.000 description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 3
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
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- 230000004048 modification Effects 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- UHESRSKEBRADOO-UHFFFAOYSA-N ethyl carbamate;prop-2-enoic acid Chemical compound OC(=O)C=C.CCOC(N)=O UHESRSKEBRADOO-UHFFFAOYSA-N 0.000 description 1
- -1 here Inorganic materials 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000009972 noncorrosive effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
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- 230000001105 regulatory effect Effects 0.000 description 1
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- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
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- Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
- Processing Of Terminals (AREA)
- Cable Accessories (AREA)
Abstract
Description
本発明は、ワイヤハーネスに関する。 The present invention relates to a wire harness.
従来のワイヤハーネスに適用される技術として、例えば、特許文献１には、導体を絶縁被覆で被覆した被覆電線の導体露出部の圧着接続を許容する圧着部を備えた圧着端子が開示されている。 As a technique applied to a conventional wire harness, for example, Patent Document 1 discloses a crimp terminal provided with a crimp portion that allows crimp connection of a conductor exposed portion of a coated electric wire whose conductor is coated with an insulating coating. ..
ところで、上述の特許文献１に記載の圧着端子は、例えば、アルミニウム又はアルミニウム合金によって構成された配索材に適用された場合に、車両に搭載されるワイヤハーネス全体において、より適正化された防食性能の確保が望まれている。 By the way, the crimp terminal described in Patent Document 1 described above is more optimized anticorrosion in the entire wire harness mounted on the vehicle when applied to, for example, a wiring material made of aluminum or an aluminum alloy. Ensuring performance is desired.
本発明は、上記の事情に鑑みてなされたものであって、適正な防食性能を確保することができるワイヤハーネスを提供することを目的とする。 The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a wire harness capable of ensuring appropriate anticorrosion performance.
上記目的を達成するために、本発明に係るワイヤハーネスは、アルミニウム又はアルミニウム合金によって構成された導体部を含む配索材と、銅又は銅合金によって構成され、相手端子と電気的に接続される電気接続部、及び、前記導体部に対して圧着される導体圧着部を含む金属端子とを備え、前記金属端子は、車両において腐食に対する対策が要求される腐食対策要求領域に複数設けられ、前記腐食対策要求領域内の複数の前記金属端子は、前記導体圧着部に腐食を防止する防食が施された防食端子、及び、前記導体圧着部に腐食を防止する防食が施されていない非防食端子を含み、前記防食端子は、腐食を防止する防食が施されていない状態での前記導体圧着部の前記導体部との接点部位の腐食に対する寿命が、前記電気接続部の前記相手端子との接点部位の腐食に対する寿命より短い前記金属端子であり、前記非防食端子は、腐食を防止する防食が施されていない状態での前記導体圧着部の前記導体部との接点部位の腐食に対する寿命が、前記電気接続部の前記相手端子との接点部位の腐食に対する寿命より長い前記金属端子であることを特徴とする。 In order to achieve the above object, the wire harness according to the present invention is composed of a wiring material including a conductor portion made of aluminum or an aluminum alloy, and copper or a copper alloy, and is electrically connected to a mating terminal. It includes an electrical connection portion and a metal terminal including a conductor crimping portion that is crimped to the conductor portion, and the metal terminals are provided in a plurality of corrosion countermeasure required regions where countermeasures against corrosion are required in a vehicle. The plurality of metal terminals in the corrosion countermeasure required area are an anticorrosion terminal in which the conductor crimping portion is provided with anticorrosion protection, and a non-corrosion protection terminal in which the conductor crimping portion is not provided with anticorrosion protection. In the corrosion-proof terminal, the life of the contact portion of the conductor crimping portion with the conductor portion in a state where corrosion protection is not applied is such that the contact portion of the electrical connection portion with the mating terminal has a long life. The metal terminal has a shorter life against corrosion of the portion, and the non-corrosion-proof terminal has a lifetime against corrosion of the contact portion of the conductor crimping portion with the conductor portion in a state where corrosion protection is not applied to prevent corrosion. The metal terminal has a longer life than the corrosion of the contact portion of the electrical connection portion with the mating terminal.
また、上記ワイヤハーネスでは、前記防食端子は、太さが予め定められた閾値未満である前記導体部に対して前記導体圧着部が圧着された前記金属端子であり、前記非防食端子は、太さが前記閾値以上である前記導体部に対して前記導体圧着部が圧着された前記金属端子であるものとすることができる。 Further, in the wire harness, the anticorrosion terminal is the metal terminal in which the conductor crimping portion is crimped to the conductor portion whose thickness is less than a predetermined threshold value, and the non-corrosion terminal is thick. It can be assumed that the metal terminal is such that the conductor crimping portion is crimped to the conductor portion whose value is equal to or higher than the threshold value.
本発明に係るワイヤハーネスは、銅又は銅合金によって構成された金属端子の導体圧着部がアルミニウム又はアルミニウム合金によって構成された配索材の導体部に対して圧着され、金属端子の電気接続部に相手端子が電気的に接続される。そして、上記のように構成される金属端子は、車両の腐食対策要求領域内において、圧着部寿命と電気接続部寿命との関係に応じて、防食端子と非防食端子とを適正に使い分けることができる。ここで、圧着部寿命とは、腐食を防止する防食が施されていない状態での導体圧着部の導体部との接点部位の腐食に対する寿命である。一方、電気接続部寿命とは、電気接続部の相手端子との接点部位の腐食に対する寿命である。この場合、ワイヤハーネスは、車両の腐食対策要求領域内において、圧着部寿命が電気接続部寿命より短い金属端子には、導体圧着部に防食が施された防食端子が適用される。一方、ワイヤハーネスは、車両の腐食対策要求領域内において、圧着部寿命が電気接続部寿命より長い金属端子には、腐食対策要求領域内であってもあえて導体圧着部に防食が施されていない非防食端子が適用される。この結果、ワイヤハーネスは、車両に搭載されるワイヤハーネス全体において、適正な防食性能を確保することができる、という効果を奏する。 In the wire harness according to the present invention, the conductor crimping portion of the metal terminal made of copper or a copper alloy is crimped to the conductor portion of the wiring material made of aluminum or an aluminum alloy, and the electric connection portion of the metal terminal is formed. The mating terminal is electrically connected. Then, in the metal terminal configured as described above, the corrosion-proof terminal and the non-corrosion-proof terminal can be properly used according to the relationship between the life of the crimping portion and the life of the electrical connection portion within the area where the vehicle is required to take measures against corrosion. it can. Here, the crimping portion life is a life against corrosion of the contact portion of the conductor crimping portion with the conductor portion in a state where corrosion protection is not applied to prevent corrosion. On the other hand, the life of the electrical connection portion is the life of the contact portion of the electrical connection portion with the mating terminal against corrosion. In this case, in the wire harness, the anticorrosion terminal in which the conductor crimping portion is provided with anticorrosion is applied to the metal terminal whose crimping portion life is shorter than the electrical connection portion life within the corrosion countermeasure required region of the vehicle. On the other hand, in the wire harness, the metal terminal whose crimping portion life is longer than the electrical connection portion life in the corrosion countermeasure required area of the vehicle is intentionally not provided with anticorrosion on the conductor crimping portion even within the corrosion countermeasure required region. Non-corrosion terminals are applied. As a result, the wire harness has an effect that an appropriate anticorrosion performance can be ensured in the entire wire harness mounted on the vehicle.
以下に、本発明に係る実施形態を図面に基づいて詳細に説明する。なお、この実施形態によりこの発明が限定されるものではない。また、下記実施形態における構成要素には、当業者が置換可能かつ容易なもの、あるいは実質的に同一のものが含まれる。 Hereinafter, embodiments according to the present invention will be described in detail with reference to the drawings. The present invention is not limited to this embodiment. In addition, the components in the following embodiments include those that can be easily replaced by those skilled in the art, or those that are substantially the same.
なお、以下の説明では、互いに交差する第１方向、第２方向、及び、第３方向のうち、第１方向を「軸方向Ｘ」といい、第２方向を「幅方向Ｙ」といい、第３方向を「高さ方向Ｚ」という。ここでは、軸方向Ｘと幅方向Ｙと高さ方向Ｚとは、相互に略直交する。軸方向Ｘは、典型的には、金属端子が設けられる配索材の延在方向に相当し、金属端子の電気接続部と配索材圧着部とが並ぶ方向に相当する。幅方向Ｙと高さ方向Ｚとは、軸方向Ｘと交差する交差方向に相当する。また、以下の説明で用いる各方向は、特に断りのない限り、各部が相互に組み付けられた状態での方向を表すものとする。 In the following description, of the first direction, the second direction, and the third direction that intersect each other, the first direction is referred to as "axial direction X" and the second direction is referred to as "width direction Y". The third direction is called "height direction Z". Here, the axial direction X, the width direction Y, and the height direction Z are substantially orthogonal to each other. The axial direction X typically corresponds to the extending direction of the wiring material provided with the metal terminal, and corresponds to the direction in which the electrical connection portion of the metal terminal and the crimping material of the wiring material are aligned. The width direction Y and the height direction Z correspond to the intersecting directions intersecting the axial direction X. Further, unless otherwise specified, each direction used in the following description shall represent a direction in which each part is assembled to each other.
［実施形態１］
図１に示す本実施形態に係るワイヤハーネスＷＨは、車両Ｖに搭載される。ワイヤハーネスＷＨは、例えば、車両Ｖに搭載される各装置間の接続のために、電源供給や信号通信に用いられる複数の配索材Ｗを束にして集合部品とし、コネクタ等で複数の配索材Ｗを各装置に接続するようにしたものである。ワイヤハーネスＷＨは、導電性を有する配索材Ｗと、当該配索材Ｗの端末に設けられる金属端子Ｔとを備える。配索材Ｗと金属端子Ｔとは、いわゆる端子付き電線を構成する。ワイヤハーネスＷＨは、この他、さらに、コルゲートチューブ、グロメット等の外装部材、電気接続箱、固定具など種々の構成部品を含んで構成されてもよい。
[Embodiment 1]
The wire harness WH according to the present embodiment shown in FIG. 1 is mounted on the vehicle V. In the wire harness WH, for example, for connection between each device mounted on the vehicle V, a plurality of wiring materials W used for power supply and signal communication are bundled to form an aggregate part, and a plurality of wiring materials W are arranged by a connector or the like. The cable material W is connected to each device. The wire harness WH includes a conductive wiring material W and a metal terminal T provided at the terminal of the wiring material W. The wiring material W and the metal terminal T form a so-called electric wire with a terminal. The wire harness WH may further include various components such as a corrugated tube, an exterior member such as a grommet, an electric junction box, and a fixture.
配索材Ｗは、図１、図２に示すように、金属端子Ｔと電気的に接続されるものである。配索材Ｗは、導電性を有する線状の導体部Ｗ１と、当該導体部Ｗ１の外側を覆う絶縁性を有する絶縁被覆部Ｗ２とを含んで構成される。配索材Ｗは、絶縁被覆部Ｗ２で導体部Ｗ１を被覆した絶縁電線である。本実施形態の導体部Ｗ１は、導電性を有する金属素線を複数束ねた芯線であるが、当該複数の金属素線を撚り合わせた撚り芯線であってもよい。また、導体部Ｗ１は、いわゆる金属棒であってもよい。絶縁被覆部Ｗ２は、導体部Ｗ１の外周側を被覆する電線被覆である。絶縁被覆部Ｗ２は、例えば、絶縁性の樹脂材料（ＰＰやＰＶＣ、架橋ＰＥ等。耐摩耗性や耐薬品性、耐熱性等に配慮して適宜選定される。）等を押出成形することによって形成される。配索材Ｗは、軸方向Ｘに沿って線状に延在し、延在方向（軸方向Ｘ）に対してほぼ同じ径で延びるように形成される。配索材Ｗは、導体部Ｗ１の断面形状（軸方向Ｘと交差する方向の断面形状）が略円形状、絶縁被覆部Ｗ２の断面形状が略円環形状となっており、全体として略円形状の断面形状となっている。配索材Ｗは、少なくとも導体部Ｗ１の一方の端末において、絶縁被覆部Ｗ２が剥ぎ取られており、当該導体部Ｗ１の一方の端末が絶縁被覆部Ｗ２の端末Ｗ２ａから露出しており、当該露出している導体部Ｗ１の端末に金属端子Ｔが圧着される。 As shown in FIGS. 1 and 2, the wiring material W is electrically connected to the metal terminal T. The wiring material W includes a linear conductor portion W1 having conductivity and an insulating coating portion W2 having insulation covering the outside of the conductor portion W1. The wiring material W is an insulated wire in which the conductor portion W1 is covered with the insulating coating portion W2. The conductor portion W1 of the present embodiment is a core wire obtained by bundling a plurality of conductive metal strands, but may be a stranded core wire obtained by twisting the plurality of metal strands. Further, the conductor portion W1 may be a so-called metal rod. The insulating coating portion W2 is an electric wire coating that covers the outer peripheral side of the conductor portion W1. The insulating coating portion W2 is formed by, for example, extruding an insulating resin material (PP, PVC, cross-linked PE, etc., which is appropriately selected in consideration of wear resistance, chemical resistance, heat resistance, etc.). It is formed. The wiring material W extends linearly along the axial direction X, and is formed so as to extend with substantially the same diameter with respect to the extending direction (axial direction X). In the wiring material W, the cross-sectional shape of the conductor portion W1 (the cross-sectional shape in the direction intersecting the axial direction X) is substantially circular, and the cross-sectional shape of the insulating coating portion W2 is substantially circular. It has a cross-sectional shape. In the wiring material W, at least one terminal of the conductor portion W1 has the insulating coating portion W2 stripped off, and one terminal of the conductor portion W1 is exposed from the terminal W2a of the insulating coating portion W2. The metal terminal T is crimped to the end of the exposed conductor portion W1.
金属端子Ｔは、図１、図２に示すように、配索材Ｗの導体部Ｗ１に電気的に接続され、導電性を有する相手端子が電気的に接続される端子金具である。金属端子Ｔは、ワイヤハーネスＷＨにおいて複数設けられ、例えば、それぞれコネクタハウジングＨ等に保持される。そして、一対の金属端子Ｔは、それぞれのコネクタハウジングＨが相互に嵌合しコネクタ接合されることで、電気的に接続され相互間に電気的な接続部位が形成される。この結果、相互に接続される一対の金属端子Ｔは、それぞれに接続された配索材Ｗを相互に導通接続することができる。この場合において、上記ように相互に接続される一対の金属端子Ｔは、一方の金属端子Ｔが他方の金属端子Ｔにおける相手端子を構成する。 As shown in FIGS. 1 and 2, the metal terminal T is a terminal fitting that is electrically connected to the conductor portion W1 of the wiring material W and is electrically connected to a conductive mating terminal. A plurality of metal terminals T are provided in the wire harness WH, and are held in, for example, the connector housing H or the like. The pair of metal terminals T are electrically connected to each other by fitting the respective connector housings H to each other and joining the connectors, so that an electrical connection portion is formed between the pair of metal terminals T. As a result, the pair of metal terminals T connected to each other can electrically connect the wiring materials W connected to each other to each other. In this case, in the pair of metal terminals T connected to each other as described above, one metal terminal T constitutes a mating terminal at the other metal terminal T.
ここで、本実施形態の配索材Ｗは、導体部Ｗ１がアルミニウム（Ａｌ）又はアルミニウム合金によって構成される。つまり、本実施形態の導体部Ｗ１は、アルミニウム又はアルミニウム合金によって構成された金属素線を複数束ねた芯線である。一方、本実施形態の金属端子Ｔは、導体部Ｗ１とは異なる異種金属、例えば、銅（Ｃｕ）又は銅合金によって構成される。このため、本実施形態のワイヤハーネスＷＨは、導体部Ｗ１の材料がアルミニウム又はアルミニウム合金、金属端子Ｔの材料が銅又は銅合金であることで、両者の間に水（塩水）等が浸入すると両者のイオン化傾向の違いによって、導体部Ｗ１と金属端子Ｔとの間においてガルバニック腐食が発生するおそれがある。ここで、上記アルミニウム合金は、アルミニウムを主成分とする合金である。また、上記銅合金は、銅を主成分とする合金であり、例えば、いわゆる黄銅等を含む。 Here, in the wiring material W of the present embodiment, the conductor portion W1 is made of aluminum (Al) or an aluminum alloy. That is, the conductor portion W1 of the present embodiment is a core wire obtained by bundling a plurality of metal strands made of aluminum or an aluminum alloy. On the other hand, the metal terminal T of the present embodiment is made of a dissimilar metal different from the conductor portion W1, for example, copper (Cu) or a copper alloy. Therefore, in the wire harness WH of the present embodiment, the material of the conductor portion W1 is aluminum or an aluminum alloy, and the material of the metal terminal T is copper or a copper alloy, so that water (salt water) or the like enters between the two. Galvanic corrosion may occur between the conductor portion W1 and the metal terminal T due to the difference in ionization tendency between the two. Here, the aluminum alloy is an alloy containing aluminum as a main component. Further, the copper alloy is an alloy containing copper as a main component, and includes, for example, so-called brass and the like.
これに対して、本実施形態のワイヤハーネスＷＨは、図１に示すように、車両Ｖにおいて領域分けされる腐食対策不要領域ＶＡと腐食対策要求領域ＶＢとにおいて、金属端子Ｔとして非防食端子Ｔ１と防食端子Ｔ２とを適正に使い分けられて構成される。非防食端子Ｔ１は、上記のような腐食を防止する防食が施されていない金属端子Ｔである。一方、防食端子Ｔ２は、上記のような腐食を防止する防食が施された金属端子Ｔである。 On the other hand, in the wire harness WH of the present embodiment, as shown in FIG. 1, the non-corrosion-proof terminal T1 is used as the metal terminal T in the corrosion countermeasure unnecessary region VA and the corrosion countermeasure required region VB, which are divided into regions in the vehicle V. And the anti-corrosion terminal T2 are properly used and configured. The non-corrosion terminal T1 is a metal terminal T that is not provided with anticorrosion to prevent corrosion as described above. On the other hand, the anticorrosion terminal T2 is a metal terminal T provided with anticorrosion to prevent the above-mentioned corrosion.
ここで、腐食対策不要領域ＶＡとは、上記のような腐食に対する対策が不要とされる領域である。腐食対策不要領域ＶＡは、典型的には、水等が浸入しない領域であり、例えば、防水構造等によって防水された区画内の領域である。一方、腐食対策要求領域ＶＢとは、上記のような腐食に対する対策が要求される領域である。腐食対策要求領域ＶＢは、典型的には、水等が浸入し上記のようなガルバニック腐食が発生しうる領域である。腐食対策不要領域ＶＡと腐食対策要求領域ＶＢとは、車両Ｖにおいて、金属端子Ｔの配置位置、及び、当該配置位置における周辺環境等に応じて予め領域分けされる。 Here, the area VA that does not require anti-corrosion measures is an area that does not require measures against corrosion as described above. The area VA that does not require corrosion countermeasures is typically an area in which water or the like does not enter, and is, for example, an area in a section that is waterproofed by a waterproof structure or the like. On the other hand, the corrosion countermeasure required region VB is an region where countermeasures against corrosion as described above are required. The corrosion countermeasure required region VB is typically a region where water or the like can infiltrate and galvanic corrosion as described above can occur. The corrosion countermeasure unnecessary region VA and the corrosion countermeasure required region VB are divided into regions in advance in the vehicle V according to the arrangement position of the metal terminal T, the surrounding environment at the arrangement position, and the like.
本実施形態のワイヤハーネスＷＨは、腐食対策不要領域ＶＡにおいて、典型的には、金属端子Ｔとして非防食端子Ｔ１が適用される。その上で、本実施形態のワイヤハーネスＷＨは、腐食対策要求領域ＶＢにおいては、金属端子Ｔとして、一律に防食端子Ｔ２を適用するのではなく、腐食対策要求領域ＶＢであっても防食端子Ｔ２だけでなく条件に応じてあえて非防食端子Ｔ１も適用される。すなわち、本実施形態の金属端子Ｔは、腐食対策要求領域ＶＢに複数設けられ、当該腐食対策要求領域ＶＢ内の複数の金属端子Ｔは、非防食端子Ｔ１、及び、防食端子Ｔ２を含んで構成される。この構成により、本実施形態のワイヤハーネスＷＨは、ワイヤハーネスＷＨ全体において、適正化された防食性能の確保を図ったものである。以下では、まず、図２、図３、図４、図５、図６を参照して非防食端子Ｔ１の一例を説明し、図７、図８を参照して防食端子Ｔ２の一例を説明する。 In the wire harness WH of the present embodiment, the non-corrosion-proof terminal T1 is typically applied as the metal terminal T in the corrosion countermeasure unnecessary region VA. In addition, the wire harness WH of the present embodiment does not uniformly apply the anticorrosion terminal T2 as the metal terminal T in the corrosion countermeasure required region VB, but also in the corrosion countermeasure required region VB, the anticorrosion terminal T2. Not only that, the non-corrosion terminal T1 is also applied depending on the conditions. That is, a plurality of metal terminals T of the present embodiment are provided in the corrosion countermeasure request region VB, and the plurality of metal terminals T in the corrosion countermeasure request region VB include the non-corrosion-proof terminal T1 and the corrosion-proof terminal T2. Will be done. With this configuration, the wire harness WH of the present embodiment is intended to ensure optimized anticorrosion performance in the entire wire harness WH. In the following, first, an example of the non-corrosion-proof terminal T1 will be described with reference to FIGS. 2, 3, 4, 5, and 6, and an example of the anti-corrosion terminal T2 will be described with reference to FIGS. 7 and 8. ..
非防食端子Ｔ１は、バリエーションとして、図２、図３に示す非防食メス端子Ｔ１１と、図４に示す非防食オス端子Ｔ１２とを含んで構成される。非防食メス端子Ｔ１１は、非防食オス端子Ｔ１２における相手端子を構成し、非防食オス端子Ｔ１２は、非防食メス端子Ｔ１１における相手端子を構成する。 The non-corrosion terminal T1 includes, as variations, the non-corrosion female terminal T11 shown in FIGS. 2 and 3 and the non-corrosion male terminal T12 shown in FIG. The non-corrosion-proof female terminal T11 constitutes a mating terminal in the non-corrosion-proof male terminal T12, and the non-corrosion-proof male terminal T12 constitutes a mating terminal in the non-corrosion-proof female terminal T11.
図２、図３に示す非防食メス端子Ｔ１１は、電気接続部２と、連結部３と、配索材圧着部４とを含んで構成される。電気接続部２と連結部３と配索材圧着部４とは、全体が一体で導電性を有する金属部材によって構成される。非防食メス端子Ｔ１１は、一枚の板金を、電気接続部２、連結部３、配索材圧着部４等の各部に対応した形状にあわせて打ち抜き加工、プレス加工、折り曲げ加工等の各種加工によって成形することで各部が立体的に一体で形成される。非防食メス端子Ｔ１１は、軸方向Ｘに沿って一方側から他方側に向かって、電気接続部２、連結部３、配索材圧着部４の順で並んで相互に連結される。 The non-corrosion female terminal T11 shown in FIGS. 2 and 3 includes an electrical connection portion 2, a connection portion 3, and a cording material crimping portion 4. The electrical connection portion 2, the connection portion 3, and the cording material crimping portion 4 are integrally formed of a conductive metal member. The non-corrosion female terminal T11 is used for various processing such as punching, pressing, and bending of a single sheet metal according to the shape corresponding to each part such as the electrical connection part 2, the connection part 3, and the cording material crimping part 4. Each part is three-dimensionally integrally formed by molding with. The non-corrosion female terminal T11 is connected to each other by arranging the electrical connection portion 2, the connecting portion 3, and the cording material crimping portion 4 in this order from one side to the other along the axial direction X.
一方、図４に示す非防食オス端子Ｔ１２は、電気接続部２にかえて電気接続部１０２を含んで構成される点で非防食メス端子Ｔ１１と異なる。非防食オス端子Ｔ１２のその他の構成は、若干形状が異なる部分があるものの、概ね非防食メス端子Ｔ１１と略同様の構成である。 On the other hand, the non-corrosion-proof male terminal T12 shown in FIG. 4 is different from the non-corrosion-proof female terminal T11 in that the non-corrosion-proof male terminal T12 is configured to include the electrical connection portion 102 instead of the electrical connection portion 2. The other configurations of the non-corrosion-proof male terminal T12 are substantially the same as those of the non-corrosion-proof female terminal T11, although there are some differences in shape.
以下では、連結部３、配索材圧着部４については、非防食メス端子Ｔ１１と非防食オス端子Ｔ１２とで共通の説明とし、電気接続部２と電気接続部１０２とについては、電気接続部２と電気接続部１０２との相違点以外はできる限り共通の説明とする。 In the following, the connecting portion 3 and the cording material crimping portion 4 will be described in common with the non-corrosion-proof female terminal T11 and the non-corrosion-proof male terminal T12, and the electrical connection portion 2 and the electrical connection portion 102 will be described with respect to the electrical connection portion. Except for the difference between 2 and the electrical connection portion 102, the description will be as common as possible.
電気接続部２、１０２は、相手端子（非防食メス端子Ｔ１１においては非防食オス端子Ｔ１２、非防食オス端子Ｔ１２においては非防食メス端子Ｔ１１）と電気的に接続される部分である。本実施形態の電気接続部２は、メス型の端子形状をなし、オス型の端子形状の相手端子である非防食オス端子Ｔ１２の電気接続部１０２と電気的に接続される。一方、本実施形態の電気接続部１０２は、オス型の端子形状をなし、メス型の端子形状の相手端子である非防食メス端子Ｔ１１の電気接続部２と電気的に接続される。 The electrical connection portions 2 and 102 are portions that are electrically connected to the mating terminals (non-corrosion-proof male terminal T12 in the non-corrosion-proof female terminal T11 and non-corrosion-proof female terminal T11 in the non-corrosion-proof male terminal T12). The electrical connection portion 2 of the present embodiment has a female terminal shape and is electrically connected to the electrical connection portion 102 of the non-corrosion-proof male terminal T12 which is a mating terminal of the male terminal shape. On the other hand, the electrical connection portion 102 of the present embodiment has a male terminal shape and is electrically connected to the electrical connection portion 2 of the non-corrosion-proof female terminal T11 which is a mating terminal of the female terminal shape.
より具体的には、電気接続部２は、図２、図３、図５に示すように、箱状部２１と、バネ接点部２２とを含んで構成される。箱状部２１は、内部に形成される端子挿入空間部２３に軸方向Ｘに沿って相手端子である非防食オス端子Ｔ１２の電気接続部１０２を挿入可能な部分を構成する。箱状部２１は、中心軸線が軸方向Ｘに沿い、両端が開口した略矩形筒状（箱状）に形成される。箱状部２１は、軸方向Ｘに沿って延在し、軸方向Ｘの一方側から電気接続部１０２が挿入され、他方側に連結部３を介して配索材圧着部４が連結される。バネ接点部２２は、端子挿入空間部２３内に位置し箱状部２１に弾性変形可能に片持ち状に支持され非防食オス端子Ｔ１２の電気接続部１０２との接点を形成する部分である。バネ接点部２２は、板厚方向が高さ方向Ｚに沿う略矩形板状に形成される。
バネ接点部２２は、軸方向Ｘの一方側（電気接続部１０２が挿入される側）の端部が箱状部２１に連結され支持され、軸方向Ｘに沿って延在する。そして、バネ接点部２２は、軸方向Ｘの他方側の端部が自由端となる。この構成により、バネ接点部２２は、箱状部２１に高さ方向Ｚに対して弾性変形可能に片持ち状に支持される。
More specifically, as shown in FIGS. 2, 3, and 5, the electrical connection portion 2 includes a box-shaped portion 21 and a spring contact portion 22. The box-shaped portion 21 constitutes a portion into which the electrical connection portion 102 of the non-corrosion-proof male terminal T12, which is a mating terminal, can be inserted into the terminal insertion space portion 23 formed inside along the axial direction X. The box-shaped portion 21 is formed in a substantially rectangular tubular shape (box shape) in which the central axis is along the axial direction X and both ends are open. The box-shaped portion 21 extends along the axial direction X, the electrical connection portion 102 is inserted from one side of the axial direction X, and the cording material crimping portion 4 is connected to the other side via the connecting portion 3. .. The spring contact portion 22 is located in the terminal insertion space portion 23 and is supported by the box-shaped portion 21 in an elastically deformable cantilever shape to form a contact with the electrical connection portion 102 of the non-corrosion-proof male terminal T12. The spring contact portion 22 is formed in a substantially rectangular plate shape in which the plate thickness direction is along the height direction Z.
The spring contact portion 22 has an end portion on one side of the axial direction X (the side into which the electrical connection portion 102 is inserted) connected to and supported by the box-shaped portion 21, and extends along the axial direction X. The end of the spring contact portion 22 on the other side in the axial direction X is a free end. With this configuration, the spring contact portion 22 is supported by the box-shaped portion 21 in a cantilever shape so as to be elastically deformable in the height direction Z.
一方、電気接続部１０２は、図４、図５に示すように、箱状部１２１と、タブ部１２２とを含んで構成され。箱状部１２１は、タブ部１２２の基端を支持する部分を構成する。箱状部１２１は、中心軸線が軸方向Ｘに沿う略矩形筒状（箱状）に形成される。箱状部１２１は、軸方向Ｘに沿って延在し、軸方向Ｘの一方側にタブ部１２２が連結され、他方側に連結部３を介して配索材圧着部４が連結される。タブ部１２２は、電気接続部２の端子挿入空間部２３内に挿入され、非防食メス端子Ｔ１１の電気接続部２との接点を形成する部分である。タブ部１２２は、箱状部１２１の軸方向Ｘの一方の端部から当該軸方向Ｘの一方側に突出し軸方向Ｘに沿って延在する。タブ部１２２は、電気接続部２の端子挿入空間部２３内に軸方向Ｘに沿って挿入可能な略直線針状に形成される。 On the other hand, as shown in FIGS. 4 and 5, the electrical connection portion 102 includes a box-shaped portion 121 and a tab portion 122. The box-shaped portion 121 constitutes a portion that supports the base end of the tab portion 122. The box-shaped portion 121 is formed in a substantially rectangular tubular shape (box shape) whose central axis is along the axial direction X. The box-shaped portion 121 extends along the axial direction X, and the tab portion 122 is connected to one side of the axial direction X, and the cording material crimping portion 4 is connected to the other side via the connecting portion 3. The tab portion 122 is a portion that is inserted into the terminal insertion space portion 23 of the electrical connection portion 2 and forms a contact point with the electrical connection portion 2 of the non-corrosion female terminal T11. The tab portion 122 protrudes from one end of the box-shaped portion 121 in the axial direction X to one side of the axial direction X and extends along the axial direction X. The tab portion 122 is formed in a substantially straight needle shape that can be inserted along the axial direction X in the terminal insertion space portion 23 of the electrical connection portion 2.
連結部３は、図２、図３、図４に示すように、電気接続部２、１０２と配索材圧着部４との間に介在し、当該電気接続部２、１０２と当該配索材圧着部４とを連結する部分である。非防食メス端子Ｔ１１、非防食オス端子Ｔ１２は、電気接続部２、１０２と配索材圧着部４とが連結部３を介して電気的に接続され、当該配索材圧着部４を介して電気接続部２、１０２と配索材Ｗの導体部Ｗ１とが電気的に接続され導通される。 As shown in FIGS. 2, 3 and 4, the connecting portion 3 is interposed between the electrical connecting portions 2 and 102 and the wiring material crimping portion 4, and the electrical connecting portions 2 and 102 and the wiring material are connected. This is a portion that connects the crimping portion 4. In the non-corrosion female terminal T11 and the non-corrosion male terminal T12, the electrical connection portions 2 and 102 and the wiring material crimping portion 4 are electrically connected via the connecting portion 3, and the electrical connecting portion 2 and 102 are electrically connected via the connecting portion 3. The electrical connection portions 2 and 102 and the conductor portion W1 of the wiring material W are electrically connected and conducted.
配索材圧着部４は、図２、図３、図４に示すように、配索材Ｗが接続され、当該配索材Ｗの端末と金属端子Ｔとを電気的に接続する部分である。配索材圧着部４は、配索材Ｗの端末に加締められ圧着される。配索材圧着部４は、基部４１、及び、二組の一対のバレル片部４２、４３、４４、４５を含んで構成される。配索材圧着部４は、基部４１と二組の一対のバレル片部４２、４３、４４、４５とによって配索材Ｗに対して加締められ圧着される。さらに言えば、配索材圧着部４は、基部４１、及び、二組の一対のバレル片部４２、４３、４４、４５によって、導体圧着部４６、中間部４７、及び、被覆圧着部４８が構成される。言い換えれば、配索材圧着部４は、基部４１、及び、二組の一対のバレル片部４２、４３、４４、４５によって構成される導体圧着部４６、中間部４７、及び、被覆圧着部４８を含んで構成される。導体圧着部４６は、基部４１の一部、及び、一対のバレル片部４２、４３によって構成される。中間部４７は、基部４１の一部によって構成される。被覆圧着部４８は、基部４１の一部、及び、一対のバレル片部４４、４５によって構成される。配索材圧着部４は、軸方向Ｘに沿って電気接続部２、１０２側から反対側に向かって、導体圧着部４６、中間部４７、被覆圧着部４８の順で並んで相互に連結される。そして、本実施形態の配索材圧着部４は、中間部４７を介して一対のバレル片部４２、４３と一対のバレル片部４４、４５とが分断されたいわゆる別体バレル型の圧着部を構成する。 As shown in FIGS. 2, 3 and 4, the wiring material crimping portion 4 is a portion to which the wiring material W is connected and electrically connects the terminal of the wiring material W and the metal terminal T. .. The wiring material crimping portion 4 is crimped and crimped to the terminal of the wiring material W. The wiring material crimping portion 4 includes a base portion 41 and two sets of barrel piece portions 42, 43, 44, 45. The wiring material crimping portion 4 is crimped and crimped to the wiring material W by the base 41 and two pairs of barrel piece portions 42, 43, 44, 45. Furthermore, in the wiring material crimping portion 4, the conductor crimping portion 46, the intermediate portion 47, and the covering crimping portion 48 are formed by the base portion 41 and the pair of barrel piece portions 42, 43, 44, 45. It is composed. In other words, the wiring material crimping portion 4 is a conductor crimping portion 46, an intermediate portion 47, and a covering crimping portion 48 composed of a base portion 41 and two pairs of barrel piece portions 42, 43, 44, 45. Consists of including. The conductor crimping portion 46 is composed of a part of the base portion 41 and a pair of barrel piece portions 42, 43. The intermediate portion 47 is composed of a part of the base portion 41. The coating crimping portion 48 is composed of a part of the base portion 41 and a pair of barrel piece portions 44 and 45. The wiring material crimping portion 4 is connected to each other in the order of the conductor crimping portion 46, the intermediate portion 47, and the covering crimping portion 48 from the electrical connection portion 2, 102 side to the opposite side along the axial direction X. To. The cording material crimping portion 4 of the present embodiment is a so-called separate barrel type crimping portion in which the pair of barrel piece portions 42, 43 and the pair of barrel piece portions 44, 45 are separated via the intermediate portion 47. To configure.
具体的には、基部４１は、軸方向Ｘに沿って延在し、配索材Ｗへの圧着前の状態（図２等参照）において、略Ｕ字状に形成された配索材圧着部４の底壁となる部分である。基部４１は、板厚方向が高さ方向Ｚに沿う板状に形成される。基部４１は、圧着加工の際に配索材Ｗの端部が載置される。基部４１は、軸方向Ｘの一方側に連結部３を介して電気接続部２が連結される。基部４１は、各部において幅方向Ｙの両端部が高さ方向Ｚに沿って立ち上がっている。より具体的には、基部４１は、軸方向Ｘに沿って、導体圧着部４６、中間部４７、及び、被覆圧着部４８に渡って連続する。つまり、基部４１は、導体圧着部４６を構成する第１基部４１ａ、中間部４７を構成する第２基部４１ｂ、被覆圧着部４８を構成する第３基部４１ｃが軸方向Ｘに沿って連なって構成される。基部４１は、第１基部４１ａの軸方向Ｘの一方の端部に電気接続部２、１０２が連結される。また、基部４１は、圧着加工前の状態において、第３基部４１ｃの軸方向Ｘの他方の端部にキャリア連結されており、例えば、圧着加工時にキャリアから切断される。 Specifically, the base 41 extends along the axial direction X and is formed in a substantially U shape in a state before crimping to the wiring material W (see FIG. 2 and the like). This is the bottom wall of 4. The base portion 41 is formed in a plate shape in which the plate thickness direction is along the height direction Z. The end portion of the wiring material W is placed on the base portion 41 during the crimping process. In the base 41, the electrical connection 2 is connected to one side of the axial direction X via the connection 3. In each portion of the base portion 41, both ends in the width direction Y stand up along the height direction Z. More specifically, the base 41 is continuous along the axial direction X over the conductor crimping portion 46, the intermediate portion 47, and the covering crimping portion 48. That is, the base 41 is composed of the first base 41a forming the conductor crimping portion 46, the second base 41b forming the intermediate portion 47, and the third base 41c forming the covering crimping portion 48 in a row along the axial direction X. Will be done. In the base 41, the electrical connection portions 2 and 102 are connected to one end of the first base 41a in the axial direction X. Further, the base portion 41 is carrier-connected to the other end portion of the third base portion 41c in the axial direction X in the state before the crimping process, and is cut from the carrier during the crimping process, for example.
一対のバレル片部４２、４３は、基部４１の一部である第１基部４１ａと共に導体圧着部４６を構成する部分である。導体圧着部４６は、配索材圧着部４において軸方向Ｘの一端側、ここでは、電気接続部２、１０２側に設けられ配索材Ｗの導体部Ｗ１に対して加締められ圧着される部分である。更に言えば、導体圧着部４６は、導体部Ｗ１に対して加締められ圧着されることで、当該導体部Ｗ１と電気的に接続される部分である。一対のバレル片部４２、４３は、当該導体圧着部４６において第１基部４１ａから幅方向Ｙの両側にそれぞれ帯状に延びて形成され、第１基部４１ａとの間に配索材Ｗの導体部Ｗ１を包んで加締められ圧着される部分である。バレル片部４２、４３は、圧着加工前の状態において、Ｕ字状に形成された配索材圧着部４の側壁となる部分である。バレル片部４２は、第１基部４１ａから軸方向Ｘと交差する幅方向Ｙの一方側に延びる。バレル片部４３は、第１基部４１ａから幅方向Ｙの他方側に延びる。バレル片部４２、４３は、配索材Ｗの導体部Ｗ１に対して加締められ圧着される前の状態では、第１基部４１ａに対して曲げ加工が施され当該第１基部４１ａとあわせて略Ｕ字状に成形されている。本実施形態の一対のバレル片部４２、４３は、導体部Ｗ１に対して巻き付けられて加締められ、圧着された状態で、互いに重なり合わない（オーバーラップしない）ように第１基部４１ａ側の根元から先端までの長さが設定されている。導体圧着部４６は、第１基部４１ａ、及び、一対のバレル片部４２、４３によって、一対のバレル片部４２、４３の間に配置された配索材Ｗの導体部Ｗ１の外側を包んで導体部Ｗ１に対して加締められ圧着される。ここでは、一対のバレル片部４２、４３は、いわゆるＢクリンプと称する加締め圧着がなされるものとして図示している。導体圧着部４６は、Ｂクリンプでは、第１基部４１ａと一対のバレル片部４２、４３とによって導体部Ｗ１を包んで圧着された状態で、バレル片部４２、４３のそれぞれが第１基部４１ａ側に向けて折り曲げられた状態とされる。そして、導体圧着部４６は、この状態で当該一対のバレル片部４２、４３の先端がそれぞれ導体部Ｗ１に接触して押しつけられるように加締められ圧着される。なお、導体圧着部４６は、第１基部４１ａ、及び、一対のバレル片部４２、４３において導体部Ｗ１と接触する部分に、導体部Ｗ１との接触面積を増やし接触安定性を向上すると共に凝着強度を向上するためのセレーション４６ａ（図２参照）等が設けられていてもよい。また、導体圧着部４６は、上記の形式に限らず、例えば、一対のバレル片部４２、４３が配索材Ｗに対して巻き付けられて加締められ、圧着された状態で、互いに重なり合う（オーバーラップする）ように構成されてもよい。 The pair of barrel piece portions 42, 43 are portions that form the conductor crimping portion 46 together with the first base portion 41a, which is a part of the base portion 41. The conductor crimping portion 46 is provided on one end side in the axial direction X in the wiring material crimping portion 4, here, on the electrical connection portions 2 and 102 side, and is crimped and crimped to the conductor portion W1 of the wiring material W. It is a part. Furthermore, the conductor crimping portion 46 is a portion that is electrically connected to the conductor portion W1 by being crimped and crimped to the conductor portion W1. The pair of barrel piece portions 42, 43 are formed in the conductor crimping portion 46 so as to extend from the first base portion 41a on both sides in the width direction in a strip shape, respectively, and the conductor portion of the wiring material W is formed between the barrel piece portions 42 and 43 and the first base portion 41a. It is a part that wraps W1 and is crimped and crimped. The barrel piece portions 42 and 43 are portions that serve as side walls of the U-shaped wiring material crimping portion 4 in the state before the crimping process. The barrel piece portion 42 extends from the first base portion 41a to one side in the width direction Y intersecting the axial direction X. The barrel piece portion 43 extends from the first base portion 41a to the other side in the width direction Y. In the state before the barrel piece portions 42 and 43 are crimped and crimped to the conductor portion W1 of the wiring material W, the first base portion 41a is bent and combined with the first base portion 41a. It is molded in a substantially U shape. The pair of barrel piece portions 42, 43 of the present embodiment are wound around the conductor portion W1 and crimped, and in a crimped state, they are on the side of the first base portion 41a so as not to overlap each other (do not overlap). The length from the root to the tip is set. The conductor crimping portion 46 wraps the outside of the conductor portion W1 of the wiring material W arranged between the pair of barrel piece portions 42, 43 by the first base portion 41a and the pair of barrel piece portions 42, 43. It is crimped and crimped to the conductor portion W1. Here, the pair of barrel pieces 42, 43 are shown as being subjected to crimping and crimping, which is a so-called B crimp. In the B crimp, the conductor crimping portion 46 is in a state where the conductor portion W1 is wrapped and crimped by the first base portion 41a and the pair of barrel piece portions 42 and 43, and each of the barrel piece portions 42 and 43 is crimped to the first base portion 41a. It is in a state of being bent toward the side. Then, in this state, the conductor crimping portion 46 is crimped and crimped so that the tips of the pair of barrel piece portions 42 and 43 are in contact with and pressed against the conductor portion W1, respectively. The conductor crimping portion 46 increases the contact area with the conductor portion W1 at the portions of the first base portion 41a and the pair of barrel piece portions 42 and 43 that come into contact with the conductor portion W1 to improve the contact stability and the adhesion. Serrations 46a (see FIG. 2) or the like may be provided to improve the wear strength. Further, the conductor crimping portion 46 is not limited to the above type, and for example, a pair of barrel piece portions 42, 43 are wound around the wiring material W, crimped, and overlapped with each other in a crimped state (over). It may be configured to wrap).
一対のバレル片部４４、４５は、基部４１の一部である第３基部４１ｃと共に被覆圧着部４８を構成する部分である。被覆圧着部４８は、配索材圧着部４において軸方向Ｘの他端側、ここでは、電気接続部２、１０２側とは反対側に設けられ配索材Ｗの絶縁被覆部Ｗ２に対して加締められ圧着される部分である。一対のバレル片部４４、４５は、当該被覆圧着部４８において第３基部４１ｃから幅方向Ｙの両側にそれぞれ帯状に延びて形成され、第３基部４１ｃとの間に配索材Ｗの絶縁被覆部Ｗ２を包んで加締められ圧着される部分である。バレル片部４４、４５は、圧着加工前の状態において、Ｕ字状に形成された配索材圧着部４の側壁となる部分である。バレル片部４４は、第３基部４１ｃから軸方向Ｘと交差する幅方向Ｙの一方側に延びる。バレル片部４５は、第３基部４１ｃから幅方向Ｙの他方側に延びる。バレル片部４４、４５は、配索材Ｗの絶縁被覆部Ｗ２に対して加締められ圧着される前の状態では、第３基部４１ｃに対して曲げ加工が施され当該第３基部４１ｃとあわせて略Ｕ字状に成形されている。本実施形態の一対のバレル片部４４、４５は、絶縁被覆部Ｗ２に対して巻き付けられて加締められ、圧着された状態で、互いに重なり合わない（オーバーラップしない）ように第３基部４１ｃ側の根元から先端までの長さが設定され、かつ、軸方向Ｘにずらされて形成される。被覆圧着部４８は、第３基部４１ｃ、及び、一対のバレル片部４４、４５によって、一対のバレル片部４４、４５の間に配置された配索材Ｗの絶縁被覆部Ｗ２の外側を包んで絶縁被覆部Ｗ２に対して加締められ圧着される。なお、被覆圧着部４８は、一対のバレル片部４４、４５が配索材Ｗに対して巻き付けられて加締められ、圧着された状態で、互いに重なり合う（オーバーラップする）ように構成されてもよい。 The pair of barrel piece portions 44, 45 is a portion that constitutes the covering crimping portion 48 together with the third base portion 41c, which is a part of the base portion 41. The covering crimping portion 48 is provided on the other end side of the wiring material crimping portion 4 in the axial direction X, here, on the side opposite to the electrical connection portions 2 and 102 side, with respect to the insulating coating portion W2 of the wiring material W. This is the part that is crimped and crimped. The pair of barrel piece portions 44, 45 are formed in the covering crimping portion 48 extending from the third base portion 41c on both sides in the width direction in a strip shape, respectively, and are insulatingly coated with the wiring material W between the third base portion 41c and the third base portion 41c. It is a portion that wraps the portion W2 and is crimped and crimped. The barrel piece portions 44 and 45 are portions that serve as side walls of the U-shaped wiring material crimping portion 4 in the state before the crimping process. The barrel piece portion 44 extends from the third base portion 41c to one side in the width direction Y intersecting the axial direction X. The barrel piece 45 extends from the third base 41c to the other side in the width direction Y. In the state before the barrel pieces 44 and 45 are crimped and crimped to the insulating coating portion W2 of the wiring material W, the third base portion 41c is bent and combined with the third base portion 41c. It is formed in a substantially U shape. The pair of barrel piece portions 44, 45 of the present embodiment are wound around the insulating coating portion W2, crimped, and crimped, so that they do not overlap (do not overlap) with each other on the third base portion 41c side. The length from the root to the tip of the is set, and the length is shifted in the axial direction X. The coating crimping portion 48 encloses the outside of the insulating coating portion W2 of the wiring material W arranged between the pair of barrel pieces 44, 45 by the third base portion 41c and the pair of barrel pieces 44, 45. Then, it is crimped and crimped to the insulating coating portion W2. Even if the cover crimping portion 48 is configured such that a pair of barrel piece portions 44, 45 are wound around the wiring material W and crimped, and in a crimped state, overlap (overlap) with each other. Good.
ここでは、配索材圧着部４は、軸方向Ｘに対して当該被覆圧着部４８と導体圧着部４６との間に中間部４７が介在する。中間部４７は、導体圧着部４６と被覆圧着部４８との間に介在し、当該導体圧着部４６と当該被覆圧着部４８とを連結する部分である。中間部４７は、第２基部４１ｂによって構成され、当該第２基部４１ｂの軸方向Ｘの一方側の端部に導体圧着部４６の第１基部４１ａが連結され、他方側の端部に被覆圧着部４８の第３基部４１ｃが連結される。上述したように、バレル片部４２、４３とバレル片部４４、４５とは、それぞれ、互いの間に当該中間部４７が介在することで相互に間隔をあけて分断して形成される。そして、中間部４７は、導体部Ｗ１の中間露出部Ｗ１ａが露出する部分を構成する。 Here, in the wiring material crimping portion 4, an intermediate portion 47 is interposed between the covering crimping portion 48 and the conductor crimping portion 46 in the axial direction X. The intermediate portion 47 is a portion that is interposed between the conductor crimping portion 46 and the covering crimping portion 48 and connects the conductor crimping portion 46 and the covering crimping portion 48. The intermediate portion 47 is composed of a second base portion 41b, the first base portion 41a of the conductor crimping portion 46 is connected to one end of the second base portion 41b in the axial direction X, and the other end is covered and crimped. The third base 41c of the portion 48 is connected. As described above, the barrel piece portions 42 and 43 and the barrel piece portions 44 and 45 are formed so as to be separated from each other by interposing the intermediate portion 47 between them. The intermediate portion 47 constitutes a portion where the intermediate exposed portion W1a of the conductor portion W1 is exposed.
非防食メス端子Ｔ１１、非防食オス端子Ｔ１２は、上記のような構成にあって、図５、図６に示しように、導電性を有する金属部材である母材１０によって電気接続部２、１０２、連結部３、及び、配索材圧着部４が一体で形成される。配索材圧着部４は、上述したように、導体圧着部４６、中間部４７、及び、被覆圧着部４８を含み、配索材圧着部４においてはこれら導体圧着部４６、中間部４７、及び、被覆圧着部４８が母材１０によって一体で形成される。そして、非防食メス端子Ｔ１１、非防食オス端子Ｔ１２は、当該母材１０にメッキ１１が施されている。本実施形態の非防食メス端子Ｔ１１、非防食オス端子Ｔ１２において、母材１０は、アルミニウム又はアルミニウム合金によって構成された導体部Ｗ１とは異なる異種金属、ここでは、銅又は銅合金によって構成される。そして、メッキ１１は、すず（Ｓｎ）によって構成される。メッキ１１の下地は、銅下地、ニッケル（Ｎｉ）下地、亜鉛（Ｚｕ）下地等、いずれの下地であってもよい。 The non-corrosion-proof female terminal T11 and the non-corrosion-proof male terminal T12 have the above-mentioned configurations, and as shown in FIGS. 5 and 6, the electrical connection portions 2, 102 are formed by the base material 10 which is a conductive metal member. , The connecting portion 3 and the wiring material crimping portion 4 are integrally formed. As described above, the wiring material crimping portion 4 includes the conductor crimping portion 46, the intermediate portion 47, and the covering crimping portion 48, and in the wiring material crimping portion 4, these conductor crimping portions 46, the intermediate portion 47, and the coating crimping portion 48 are included. , The covering crimping portion 48 is integrally formed by the base material 10. The non-corrosion female terminal T11 and the non-corrosion male terminal T12 are plated 11 on the base material 10. In the non-corrosion female terminal T11 and the non-corrosion male terminal T12 of the present embodiment, the base material 10 is made of a dissimilar metal different from the conductor portion W1 made of aluminum or an aluminum alloy, here, copper or a copper alloy. .. The plating 11 is composed of tin (Sn). The base of the plating 11 may be any base such as a copper base, a nickel (Ni) base, and a zinc (Zu) base.
上記のように構成される非防食メス端子Ｔ１１、非防食オス端子Ｔ１２は、図６に示すように、導体圧着部４６が配索材Ｗの導体部Ｗ１に圧着され、被覆圧着部４８が配索材Ｗの絶縁被覆部Ｗ２に圧着されることで、それぞれ配索材Ｗの端末に圧着される。この状態で、非防食メス端子Ｔ１１、非防食オス端子Ｔ１２は、導体圧着部４６と導体部Ｗ１との間に接点部位１２が形成される。この結果、非防食メス端子Ｔ１１、非防食オス端子Ｔ１２は、それぞれ、この接点部位１２を介して配索材Ｗの導体部Ｗ１と導通接続される。 In the non-corrosion female terminal T11 and the non-corrosion male terminal T12 configured as described above, as shown in FIG. 6, the conductor crimping portion 46 is crimped to the conductor portion W1 of the wiring material W, and the covering crimping portion 48 is arranged. By being crimped to the insulating coating portion W2 of the cord material W, it is crimped to the end of the cord material W, respectively. In this state, the non-corrosion female terminal T11 and the non-corrosion male terminal T12 have a contact portion 12 formed between the conductor crimping portion 46 and the conductor portion W1. As a result, the non-corrosion-proof female terminal T11 and the non-corrosion-proof male terminal T12 are electrically connected to the conductor portion W1 of the wiring material W via the contact portion 12, respectively.
そして、非防食メス端子Ｔ１１と非防食オス端子Ｔ１２とは、相互に接続される際には、図５に示すように、タブ部１２２が軸方向Ｘに沿って端子挿入空間部２３に挿入される。このとき、タブ部１２２は、バネ接点部２２を撓ませながら端子挿入空間部２３に挿入される。そして、非防食メス端子Ｔ１１と非防食オス端子Ｔ１２とは、バネ接点部２２の弾性復元力によってタブ部１２２を端子挿入空間部２３内に保持した状態で、タブ部１２２とバネ接点部２２との間やタブ部１２２と箱状部２１の内壁面との間に接点部位１３が形成される。この結果、非防食メス端子Ｔ１１と非防食オス端子Ｔ１２とは、接点部位１３等を介して互いに導通接続され、それぞれに接続されている配索材Ｗの導体部Ｗ１同士が導通接続される。 When the non-corrosion female terminal T11 and the non-corrosion male terminal T12 are connected to each other, the tab portion 122 is inserted into the terminal insertion space portion 23 along the axial direction X as shown in FIG. To. At this time, the tab portion 122 is inserted into the terminal insertion space portion 23 while bending the spring contact portion 22. Then, the non-corrosion female terminal T11 and the non-corrosion male terminal T12 are held together with the tab portion 122 and the spring contact portion 22 in a state where the tab portion 122 is held in the terminal insertion space portion 23 by the elastic restoring force of the spring contact portion 22. A contact portion 13 is formed between the space and between the tab portion 122 and the inner wall surface of the box-shaped portion 21. As a result, the non-corrosion-proof female terminal T11 and the non-corrosion-proof male terminal T12 are conductively connected to each other via the contact portion 13 and the like, and the conductor portions W1 of the wiring material W connected to each are conductively connected to each other.
そして、非防食メス端子Ｔ１１、非防食オス端子Ｔ１２は、ともに導体圧着部４６に上述したような腐食を防止する防食が施されていない。ここでは一例として、非防食メス端子Ｔ１１、非防食オス端子Ｔ１２は、後述の防食端子Ｔ２で説明する防食部１４が施されておらず、導体部Ｗ１の中間露出部Ｗ１ａ等、腐食の可能性のある部分が導体圧着部４６と被覆圧着部４８との間の中間部４７から外部に露出している。 Both the non-corrosion-proof female terminal T11 and the non-corrosion-proof male terminal T12 are not provided with anticorrosion to prevent corrosion as described above in the conductor crimping portion 46. Here, as an example, the non-corrosion female terminal T11 and the non-corrosion male terminal T12 are not provided with the anticorrosion portion 14 described in the anticorrosion terminal T2 described later, and the intermediate exposed portion W1a of the conductor portion W1 may be corroded. Is exposed to the outside from the intermediate portion 47 between the conductor crimping portion 46 and the covering crimping portion 48.
一方、防食端子Ｔ２は、バリエーションとして、図７に示す防食メス端子Ｔ２１と、図８に示す防食オス端子Ｔ２２とを含んで構成される。防食メス端子Ｔ２１は、防食オス端子Ｔ２２における相手端子を構成し、防食オス端子Ｔ２２は、防食メス端子Ｔ２１における相手端子を構成する。そして、防食メス端子Ｔ２１は、防食部１４を含んで構成される点で上述した非防食メス端子Ｔ１１と異なる。同様に、防食オス端子Ｔ２２は、防食部１４を含んで構成される点で上述した非防食オス端子Ｔ１２と異なる。防食メス端子Ｔ２１、防食オス端子Ｔ２２のその他の構成は、それぞれ非防食メス端子Ｔ１１、非防食オス端子Ｔ１２と略同様の構成であるので、説明を省略する。 On the other hand, the anticorrosion terminal T2 includes, as a variation, the anticorrosion female terminal T21 shown in FIG. 7 and the anticorrosion male terminal T22 shown in FIG. The anticorrosion female terminal T21 constitutes a mating terminal in the anticorrosion male terminal T22, and the anticorrosion male terminal T22 constitutes a mating terminal in the anticorrosion female terminal T21. The anticorrosion female terminal T21 is different from the non-corrosion female terminal T11 described above in that the anticorrosion female terminal T21 is configured to include the anticorrosion portion 14. Similarly, the anticorrosion male terminal T22 is different from the non-corrosion male terminal T12 described above in that the anticorrosion male terminal T22 is configured to include the anticorrosion portion 14. Other configurations of the anticorrosion female terminal T21 and the anticorrosion male terminal T22 are substantially the same as those of the non-corrosion female terminal T11 and the non-corrosion male terminal T12, respectively, and thus the description thereof will be omitted.
本実施形態の防食メス端子Ｔ２１、防食オス端子Ｔ２２は、少なくとも導体圧着部４６に腐食を防止する防食が施される。ここでは、防食メス端子Ｔ２１、防食オス端子Ｔ２２は、防食部１４によって導体圧着部４６を含む配索材圧着部４の所定の部位が覆われて防食されている。防食部１４は、例えば、紫外線を照射することで硬化するＵＶ（Ｕｌｔｒａｖｉｏｌｅｔ、紫外線）硬化型樹脂を所定の部位に塗布し紫外線を照射させ硬化させることで構成される。ＵＶ硬化型樹脂としては、例えば、ウレタンアクリレート系の樹脂を用いることができるがこれに限らない。防食部１４は、導体圧着部４６、被覆圧着部４８の一部、導体部Ｗ１の中間露出部Ｗ１ａ、導体部Ｗ１の先端部Ｗ１ｂを覆うことで止水し、水（塩水等）が内部に浸入することを規制することができる。この結果、防食メス端子Ｔ２１、防食オス端子Ｔ２２は、適正な止水性能を確保することができ、ガルバニック腐食等が発生することを抑制することができる。なお、防食メス端子Ｔ２１、防食オス端子Ｔ２２は、上述の防食部１４に限らず、他の手法によって防食が施されていてもよい。例えば、防食部１４は、熱を加えることで硬化する熱硬化型樹脂によって構成されてもよいし、防食端子Ｔ２を保持するコネクタハウジングＨ全体を封止するように設けられてもよい。 The anticorrosion female terminal T21 and the anticorrosion male terminal T22 of the present embodiment are provided with anticorrosion at least on the conductor crimping portion 46 to prevent corrosion. Here, the anticorrosion female terminal T21 and the anticorrosion male terminal T22 are protected from corrosion by covering a predetermined portion of the wiring material crimping portion 4 including the conductor crimping portion 46 with the anticorrosion portion 14. The anticorrosion unit 14 is configured by, for example, applying a UV (Ultraviolet) curable resin that is cured by irradiating it with ultraviolet rays to a predetermined portion and irradiating it with ultraviolet rays to cure it. As the UV curable resin, for example, a urethane acrylate-based resin can be used, but the present invention is not limited to this. The anticorrosion portion 14 is stopped by covering the conductor crimping portion 46, a part of the covering crimping portion 48, the intermediate exposed portion W1a of the conductor portion W1, and the tip portion W1b of the conductor portion W1, and water (salt water or the like) is inside. Intrusion can be regulated. As a result, the anticorrosion female terminal T21 and the anticorrosion male terminal T22 can ensure proper water stopping performance, and can suppress the occurrence of galvanic corrosion and the like. The anticorrosion female terminal T21 and the anticorrosion male terminal T22 are not limited to the above-mentioned anticorrosion portion 14, and may be provided with anticorrosion by another method. For example, the anticorrosion portion 14 may be composed of a thermosetting resin that is cured by applying heat, or may be provided so as to seal the entire connector housing H that holds the anticorrosion terminal T2.
そして、本実施形態のワイヤハーネスＷＨは、腐食対策要求領域ＶＢにおいて、上記のように構成される非防食端子Ｔ１と防食端子Ｔ２とが圧着部寿命と電気接続部寿命との関係に応じて使い分けるられる。 Then, in the wire harness WH of the present embodiment, the non-corrosion-proof terminal T1 and the corrosion-proof terminal T2 configured as described above are used properly in the corrosion countermeasure request region VB according to the relationship between the life of the crimping portion and the life of the electrical connection portion. Be done.
ここで、圧着部寿命とは、腐食を防止する防食が施されていない状態での導体圧着部４６の導体部Ｗ１との接点部位１２（図６参照）の腐食に対する寿命である。一方、電気接続部寿命とは、電気接続部２、１０２の相手端子との接点部位１３（図５参照）の腐食に対する寿命である。 Here, the crimping portion life is the life of the conductor crimping portion 46 with respect to the contact portion 12 (see FIG. 6) with the conductor portion W1 in a state where corrosion protection is not applied to prevent corrosion. On the other hand, the life of the electrical connection portion is the life of the contact portion 13 (see FIG. 5) of the electrical connection portions 2 and 102 with the mating terminal against corrosion.
ワイヤハーネスＷＨは、腐食対策要求領域ＶＢ内において、圧着部寿命が電気接続部寿命より短い金属端子Ｔには、防食端子Ｔ２（防食メス端子Ｔ２１、 防食オス端子Ｔ２２）が適用される。つまり言い換えれば、防食端子Ｔ２は、腐食対策要求領域ＶＢ内において、防食が施されていない状態での圧着部寿命が電気接続部寿命より短い（圧着部寿命＜電気接続部寿命）金属端子Ｔである。この場合、防食端子Ｔ２は、防食が施されていない状態での圧着部寿命が電気接続部寿命より短い金属端子Ｔにおいて、防食部１４によって導体圧着部４６に防食が施されることで、圧着部寿命が延命され、この結果、金属端子Ｔ全体での寿命を相対的に長くすることができる。 In the wire harness WH, the anticorrosion terminal T2 (anticorrosion female terminal T21, anticorrosion male terminal T22) is applied to the metal terminal T whose crimping portion life is shorter than the electrical connection portion life in the corrosion countermeasure required region VB. In other words, the anticorrosion terminal T2 is a metal terminal T whose crimping portion life is shorter than the electrical connection portion life (crimping portion life <electrical connection portion life) in the corrosion countermeasure required region VB in the state where corrosion protection is not applied. is there. In this case, the anticorrosion terminal T2 is a metal terminal T whose crimping portion life is shorter than the life of the electrical connection portion in the state where the anticorrosion is not applied. The life of the part is extended, and as a result, the life of the entire metal terminal T can be relatively extended.
一方、ワイヤハーネスＷＨは、腐食対策要求領域ＶＢ内において、圧着部寿命が電気接続部寿命より長い金属端子Ｔには、腐食対策要求領域ＶＢ内であってもあえて非防食端子Ｔ１（非防食メス端子Ｔ１１、 非防食オス端子Ｔ１２）が適用される。つまり言い換えれば、非防食端子Ｔ１は、腐食対策要求領域ＶＢ内において、防食が施されていない状態での圧着部寿命が電気接続部寿命より長い（圧着部寿命＞電気接続部寿命）金属端子Ｔである。非防食端子Ｔ１は、防食が施されていない状態での圧着部寿命が電気接続部寿命より長い金属端子Ｔにおいて、仮に防食部１４によって圧着部寿命が延命されたとしても、電気接続部寿命が延命されない限り、結果的に金属端子Ｔ全体での寿命を相対的に長くすることはできない。したがってこの場合、ワイヤハーネスＷＨは、防食が施されていない状態での圧着部寿命が電気接続部寿命より長い金属端子Ｔにおいては、あえて非防食端子Ｔ１を用いることで、無駄に防食が施されることを回避することができる。 On the other hand, in the wire harness WH, the metal terminal T whose crimping portion life is longer than the electrical connection portion life in the corrosion countermeasure required region VB is intentionally non-corrosive terminal T1 (non-corrosion-proof female) even in the corrosion countermeasure required region VB. Terminal T11, non-corrosion-proof male terminal T12) is applied. That is, in other words, the non-corrosion-proof terminal T1 has a crimping portion life longer than the electrical connection portion life (crimping portion life> electrical connection portion life) in the corrosion countermeasure required region VB in the state where corrosion protection is not applied (crimping portion life> electrical connection portion life). Is. The non-corrosion-proof terminal T1 is a metal terminal T whose crimping portion life is longer than the electrical connection portion life in the state where corrosion protection is not applied, and even if the crimping portion life is extended by the corrosion-proof portion 14, the electrical connection portion life is extended. As a result, the life of the entire metal terminal T cannot be relatively extended unless the life is extended. Therefore, in this case, the wire harness WH is uselessly protected against corrosion by intentionally using the non-corrosion-proof terminal T1 at the metal terminal T whose crimping portion life is longer than the life of the electrical connection portion in the state where the corrosion protection is not applied. Can be avoided.
図９、図１０は、ワイヤハーネスＷＨの金属端子Ｔにおける電気接続部寿命と圧着部寿命との比較の一例を表しており、電気接続部寿命、圧着部寿命の寿命評価試験の結果を表している。寿命評価試験では、非防食メス端子Ｔ１１、非防食オス端子Ｔ１２を塩水に浸漬し乾燥させた後、高温高湿度環境下で、接点部位１２、１３における抵抗値に基づいて導通性能を評価し、当該抵抗値が所定の判定値を超えるまでに要した期間をそれぞれの「寿命」として判定した。図９、図１０は、このようにして評価された「寿命」を縦軸に表している。 9 and 10 show an example of comparison between the life of the electric connection portion and the life of the crimping portion in the metal terminal T of the wire harness WH, and show the results of the life evaluation test of the life of the electrical connection portion and the life of the crimping portion. There is. In the life evaluation test, the non-corrosion female terminal T11 and the non-corrosion male terminal T12 are immersed in salt water and dried, and then the continuity performance is evaluated based on the resistance values at the contact portions 12 and 13 in a high temperature and high humidity environment. The period required for the resistance value to exceed a predetermined determination value was determined as each "lifetime". 9 and 10 show the "lifetime" evaluated in this way on the vertical axis.
図９は、タブ部１２２の幅が１．５ｍｍでバネ接点部２２による接圧が５Ｎとなる非防食メス端子Ｔ１１、非防食オス端子Ｔ１２の組み合わせを使用し、配索材圧着部４に接続される配索材Ｗの導体部Ｗ１の太さを「０．５ｓｑ」、「０．７５ｓｑ」、「２．５ｓｑ」として行った寿命評価試験の結果を表している。図９中、棒グラフＬ１１は、上記のような非防食メス端子Ｔ１１、非防食オス端子Ｔ１２の電気接続部寿命を表し、棒グラフＬ１２は、導体部Ｗ１の太さが「０．５ｓｑ」である場合の圧着部寿命を表し、棒グラフＬ１３は、導体部Ｗ１の太さが「０．７５ｓｑ」である場合の圧着部寿命を表し、棒グラフＬ１４は、導体部Ｗ１の太さが「２．５ｓｑ」である場合の圧着部寿命を表している。 In FIG. 9, a combination of a non-corrosion-proof female terminal T11 and a non-corrosion-proof male terminal T12 in which the width of the tab portion 122 is 1.5 mm and the contact pressure by the spring contact portion 22 is 5 N is used and connected to the cording material crimping portion 4. It shows the result of the life evaluation test performed by setting the thickness of the conductor portion W1 of the wiring material W to be "0.5 sq", "0.75 sq", and "2.5 sq". In FIG. 9, the bar graph L11 represents the life of the electrical connection portion of the non-corrosion female terminal T11 and the non-corrosion male terminal T12 as described above, and the bar graph L12 shows the case where the thickness of the conductor portion W1 is “0.5 sq”. The bar graph L13 represents the life of the crimping portion when the thickness of the conductor portion W1 is "0.75 sq", and the bar graph L14 represents the life of the crimping portion when the thickness of the conductor portion W1 is "2.5 sq". It represents the life of the crimping part in a certain case.
図１０は、タブ部１２２の幅が８．０ｍｍでバネ接点部２２による接圧が２４．５Ｎとなる非防食メス端子Ｔ１１、非防食オス端子Ｔ１２の組み合わせを使用し、配索材圧着部４に接続される配索材Ｗの導体部Ｗ１の太さを「０．７５ｓｑ」、「２．５ｓｑ」、「５ｓｑ」、「８ｓｑ」として行った寿命評価試験の結果を表している。図１０中、棒グラフＬ２１は、上記のような非防食メス端子Ｔ１１、非防食オス端子Ｔ１２の電気接続部寿命を表し、棒グラフＬ２２は、導体部Ｗ１の太さが「０．７５ｓｑ」である場合の圧着部寿命を表し、棒グラフＬ２３は、導体部Ｗ１の太さが「２．５ｓｑ」である場合の圧着部寿命を表し、棒グラフＬ２４は、導体部Ｗ１の太さが「５ｓｑ」である場合の圧着部寿命を表し、棒グラフＬ２５は、導体部Ｗ１の太さが「８ｓｑ」である場合の圧着部寿命を表している。 FIG. 10 uses a combination of a non-corrosion-proof female terminal T11 and a non-corrosion-proof male terminal T12 in which the width of the tab portion 122 is 8.0 mm and the contact pressure by the spring contact portion 22 is 24.5 N. It shows the result of the life evaluation test performed by setting the thickness of the conductor portion W1 of the wiring material W connected to the above to "0.75 sq", "2.5 sq", "5 sq", and "8 sq". In FIG. 10, the bar graph L21 represents the life of the electrical connection portion of the non-corrosion female terminal T11 and the non-corrosion male terminal T12 as described above, and the bar graph L22 shows the case where the thickness of the conductor portion W1 is “0.75 sq”. The bar graph L23 represents the life of the crimping portion when the thickness of the conductor portion W1 is "2.5 sq", and the bar graph L24 represents the life of the crimping portion when the thickness of the conductor portion W1 is "5 sq". The bar graph L25 represents the life of the crimping portion when the thickness of the conductor portion W1 is "8sq".
電気接続部寿命（接点部位１３の寿命）は、図９、図１０からも明らかなように、使用されるタブ部１２２の幅が相対的に幅広（言い換えれば接触面積（導通面積）が広い）で、かつ、接圧が相対的に高いほど、相対的に長くなる傾向にある。接点部位１３は、例えば、メッキ１１の溶出等によって腐食し、腐食生成物への乗り上げ等により抵抗値が増大し、導通性能が悪化するものと推定される。また、圧着部寿命（接点部位１２の寿命）は、図９、図１０からも明らかなように、使用される配索材Ｗの導体部Ｗ１の太さが相対的に太いものであるほど、相対的に長くなる傾向にある。接点部位１２は、例えば、メッキ１１の溶出や上述したような水（塩水）等の浸入に起因するガルバニック腐食等によって腐食し、導体圧着部４６と導体部Ｗ１との接触面積（導通面積）の減少等により抵抗値が増大し、導通性能が悪化するものと推定される。そして、電気接続部寿命と圧着部寿命とは、図９、図１０からも明らかなように、導体部Ｗ１の太さが相対的に細い配索材Ｗを使用した場合には、電気接続部寿命が圧着部寿命より長くなる傾向にある。その上で、電気接続部寿命と圧着部寿命とは、導体部Ｗ１の太さが所定の太さとなると電気接続部寿命と圧着部寿命との大小関係が逆転し、導体部Ｗ１の太さが相対的に太い配索材Ｗを使用した場合には、圧着部寿命が電気接続部寿命より長くなる傾向にある。図９の例では、導体部Ｗ１の太さが「０．５ｓｑ」である場合ですでに圧着部寿命が電気接続部寿命より長く、これより導体部Ｗ１の太さが太い「０．７５ｓｑ」である場合、「２．５ｓｑ」である場合でも圧着部寿命が電気接続部寿命より長くなっている。一方、図１０の例では、導体部Ｗ１の太さが「５ｓｑ」である場合に電気接続部寿命と圧着部寿命との大小関係が逆転し、これより導体部Ｗ１の太さが太い「８ｓｑ」である場合でも圧着部寿命が電気接続部寿命より長くなっている。 As is clear from FIGS. 9 and 10, the life of the electrical connection portion (life of the contact portion 13) is such that the width of the tab portion 122 used is relatively wide (in other words, the contact area (conduction area) is wide). And, the higher the contact pressure, the longer it tends to be. It is presumed that the contact portion 13 is corroded by, for example, elution of the plating 11, the resistance value is increased by riding on the corrosion product, and the conduction performance is deteriorated. Further, as is clear from FIGS. 9 and 10, the life of the crimping portion (the life of the contact portion 12) is such that the thickness of the conductor portion W1 of the wiring material W used is relatively thick. It tends to be relatively long. The contact portion 12 is corroded by, for example, galvanic corrosion caused by the elution of the plating 11 or the infiltration of water (salt water) as described above, and the contact area (conduction area) between the conductor crimping portion 46 and the conductor portion W1. It is presumed that the resistance value increases due to a decrease or the like, and the conduction performance deteriorates. As is clear from FIGS. 9 and 10, the life of the electrical connection portion and the life of the crimping portion are the same as those of the electrical connection portion when the wiring material W having a relatively thin conductor portion W1 is used. The life tends to be longer than the life of the crimping part. On top of that, when the thickness of the conductor portion W1 becomes a predetermined thickness, the magnitude relationship between the life of the electrical connection portion and the life of the crimping portion is reversed, and the thickness of the conductor portion W1 becomes smaller. When a relatively thick wiring material W is used, the life of the crimping portion tends to be longer than the life of the electrical connection portion. In the example of FIG. 9, when the thickness of the conductor portion W1 is "0.5 sq", the life of the crimping portion is already longer than the life of the electrical connection portion, and the thickness of the conductor portion W1 is "0.75 sq". In the case of, the life of the crimping portion is longer than the life of the electrical connecting portion even when it is "2.5 sq". On the other hand, in the example of FIG. 10, when the thickness of the conductor portion W1 is "5 sq", the magnitude relationship between the life of the electrical connection portion and the life of the crimping portion is reversed, and the thickness of the conductor portion W1 is thicker than this "8 sq". Even in the case of ", the life of the crimping part is longer than the life of the electrical connection part.
本実施形態のワイヤハーネスＷＨは、上記のような寿命評価試験の結果を踏まえて、非防食端子Ｔ１と防食端子Ｔ２とが使い分けられることで、当該非防食端子Ｔ１と当該防食端子Ｔ２とが圧着部寿命と電気接続部寿命との関係に応じて使い分けるられる。 In the wire harness WH of the present embodiment, the non-corrosion terminal T1 and the anti-corrosion terminal T2 are properly used based on the result of the life evaluation test as described above, so that the non-corrosion terminal T1 and the anti-corrosion terminal T2 are crimped. It is used properly according to the relationship between the life of the part and the life of the electrical connection part.
すなわち一例として、本実施形態のワイヤハーネスＷＨは、腐食対策要求領域ＶＢ内において、太さが予め定められた閾値未満である導体部Ｗ１に対して導体圧着部４６が圧着された金属端子Ｔには、防食端子Ｔ２（防食メス端子Ｔ２１、 防食オス端子Ｔ２２）が適用される。図９の例では、当該閾値は、例えば、「０．５ｓｑ」以下の値であり、図１０の例では、当該閾値は、例えば、「５ｓｑ」である。つまり言い換えれば、防食端子Ｔ２は、腐食対策要求領域ＶＢ内において、太さが閾値未満である導体部Ｗ１に対して導体圧着部４６が圧着された金属端子Ｔである。上述したように、電気接続部寿命と圧着部寿命とは、導体部Ｗ１の太さが相対的に細い配索材Ｗを使用した場合には、電気接続部寿命が圧着部寿命より長くなる傾向にある。このため、ワイヤハーネスＷＨは、太さが閾値未満である導体部Ｗ１に対して導体圧着部４６が圧着された金属端子Ｔに防食端子Ｔ２を適用することで、結果的に、上記のように圧着部寿命が電気接続部寿命より短い金属端子Ｔに防食端子Ｔ２が適用されることとなる。 That is, as an example, the wire harness WH of the present embodiment is formed on a metal terminal T in which the conductor crimping portion 46 is crimped to the conductor portion W1 whose thickness is less than a predetermined threshold value in the corrosion countermeasure request region VB. The anti-corrosion terminal T2 (anti-corrosion female terminal T21, anti-corrosion male terminal T22) is applied. In the example of FIG. 9, the threshold value is, for example, a value of “0.5 sq” or less, and in the example of FIG. 10, the threshold value is, for example, “5 sq”. That is, in other words, the anticorrosion terminal T2 is a metal terminal T in which the conductor crimping portion 46 is crimped to the conductor portion W1 whose thickness is less than the threshold value in the corrosion countermeasure request region VB. As described above, the life of the electrical connection portion and the life of the crimping portion are different from the life of the crimping portion when the wiring material W in which the thickness of the conductor portion W1 is relatively thin is used. It is in. Therefore, in the wire harness WH, by applying the anticorrosion terminal T2 to the metal terminal T in which the conductor crimping portion 46 is crimped to the conductor portion W1 whose thickness is less than the threshold value, as a result, as described above. The anticorrosion terminal T2 is applied to the metal terminal T whose crimping portion life is shorter than the electrical connection portion life.
一方、本実施形態のワイヤハーネスＷＨは、腐食対策要求領域ＶＢ内において、太さが閾値以上である導体部Ｗ１に対して導体圧着部４６が圧着された金属端子Ｔには、非防食端子Ｔ１（非防食メス端子Ｔ１１、 非防食オス端子Ｔ１２）が適用される。つまり言い換えれば、非防食端子Ｔ１は、腐食対策要求領域ＶＢ内において、太さが閾値以上である導体部Ｗ１に対して導体圧着部４６が圧着された金属端子Ｔである。上述したように、電気接続部寿命と圧着部寿命とは、導体部Ｗ１の太さが相対的に太い配索材Ｗを使用した場合には、圧着部寿命が電気接続部寿命より長くなる傾向にある。このため、ワイヤハーネスＷＨは、太さが閾値以上である導体部Ｗ１に対して導体圧着部４６が圧着された金属端子Ｔに非防食端子Ｔ１を適用することで、結果的に、上記のように圧着部寿命が電気接続部寿命より長い金属端子Ｔに非防食端子Ｔ１が適用されることとなる。 On the other hand, in the wire harness WH of the present embodiment, the non-corrosion-proof terminal T1 is formed on the metal terminal T in which the conductor crimping portion 46 is crimped to the conductor portion W1 having a thickness equal to or larger than the threshold value in the corrosion countermeasure request region VB. (Non-corrosion female terminal T11, non-corrosion male terminal T12) is applied. That is, in other words, the non-corrosion-proof terminal T1 is a metal terminal T in which the conductor crimping portion 46 is crimped to the conductor portion W1 having a thickness equal to or larger than the threshold value in the corrosion countermeasure request region VB. As described above, the life of the electric connection portion and the life of the crimping portion are different from the life of the crimping portion when the wiring material W in which the thickness of the conductor portion W1 is relatively thick is used. It is in. Therefore, in the wire harness WH, the non-corrosion terminal T1 is applied to the metal terminal T in which the conductor crimping portion 46 is crimped to the conductor portion W1 whose thickness is equal to or larger than the threshold value, and as a result, as described above. The non-corrosion terminal T1 is applied to the metal terminal T whose crimping portion life is longer than that of the electrical connection portion.
例えば、図９の例では、腐食対策要求領域ＶＢ内の金属端子Ｔは、すべて非防食端子Ｔ１が適用される。一方、図１０の例では、腐食対策要求領域ＶＢ内の金属端子Ｔは、導体部Ｗ１の太さが「０．７５ｓｑ」、及び、「２．５ｓｑ」の配索材Ｗが適用された金属端子Ｔには防食端子Ｔ２が適用され、導体部Ｗ１の太さが「５ｓｑ」、及び、「８ｓｑ」の配索材Ｗが適用された金属端子Ｔには非防食端子Ｔ１が適用される。 For example, in the example of FIG. 9, the non-corrosion-proof terminal T1 is applied to all the metal terminals T in the corrosion countermeasure request region VB. On the other hand, in the example of FIG. 10, the metal terminal T in the corrosion countermeasure required region VB is a metal to which the wiring material W having a conductor portion W1 having a thickness of "0.75 sq" and "2.5 sq" is applied. The anticorrosion terminal T2 is applied to the terminal T, and the non-corrosion terminal T1 is applied to the metal terminal T to which the wiring material W having a conductor portion W1 having a thickness of "5sq" and "8sq" is applied.
以上で説明したワイヤハーネスＷＨは、銅又は銅合金によって構成された金属端子Ｔの導体圧着部４６がアルミニウム又はアルミニウム合金によって構成された配索材Ｗの導体部Ｗ１に対して圧着され、金属端子Ｔの電気接続部２、１０２に相手端子が電気的に接続される。そして、上記のように構成される金属端子Ｔは、車両Ｖの腐食対策要求領域ＶＢ内において、圧着部寿命と電気接続部寿命との関係に応じて、防食端子Ｔ２と非防食端子Ｔ１とを適正に使い分けることができる。この場合、ワイヤハーネスＷＨは、車両Ｖの腐食対策要求領域ＶＢ内において、圧着部寿命が電気接続部寿命より短い金属端子Ｔには、導体圧着部４６に防食が施された防食端子Ｔ２が適用される。一方、ワイヤハーネスＷＨは、車両Ｖの腐食対策要求領域ＶＢ内において、圧着部寿命が電気接続部寿命より長い金属端子Ｔには、腐食対策要求領域ＶＢ内であってもあえて導体圧着部４６に防食が施されていない非防食端子Ｔ１が適用される。これにより、ワイヤハーネスＷＨは、仮に防食部１４によって圧着部寿命が延命されたとしても、金属端子Ｔ全体での寿命を相対的に長くすることはできない金属端子Ｔに、不必要に防食端子Ｔ２を適用することを回避することができる。そして、ワイヤハーネスＷＨは、このような場合に無駄に防食を施すことなく、非防食端子Ｔ１を用いることで、例えば、製造コスト等を抑制することができる。この結果、ワイヤハーネスＷＨは、車両Ｖに搭載されるワイヤハーネスＷＨ全体において、適正な防食性能を確保することができる。これにより、ワイヤハーネスＷＨは、例えば、適正な防食性能を確保した上で、コネクタの大型化抑制、重量の増大抑制、製造コストの増大抑制等を図ることができる。 In the wire harness WH described above, the conductor crimping portion 46 of the metal terminal T made of copper or a copper alloy is crimped to the conductor portion W1 of the wiring material W made of aluminum or an aluminum alloy, and the metal terminal is formed. The mating terminal is electrically connected to the electrical connection portions 2 and 102 of T. Then, the metal terminal T configured as described above has the corrosion-proof terminal T2 and the non-corrosion-proof terminal T1 in the corrosion countermeasure required region VB of the vehicle V, depending on the relationship between the life of the crimping portion and the life of the electrical connection portion. It can be used properly. In this case, in the wire harness WH, the anticorrosion terminal T2 having the conductor crimping portion 46 protected against corrosion is applied to the metal terminal T whose crimping portion life is shorter than the electrical connection portion life in the corrosion countermeasure required region VB of the vehicle V. Will be done. On the other hand, in the wire harness WH, in the corrosion countermeasure required region VB of the vehicle V, the metal terminal T whose crimping portion life is longer than the electrical connection portion life is intentionally placed in the conductor crimping portion 46 even in the corrosion countermeasure required region VB. The non-corrosion-proof terminal T1 that is not anti-corrosion is applied. As a result, even if the life of the crimping portion is extended by the anticorrosion portion 14, the wire harness WH unnecessarily attaches the anticorrosion terminal T2 to the metal terminal T whose life of the entire metal terminal T cannot be relatively extended. Can be avoided. Then, in such a case, the wire harness WH can suppress the manufacturing cost and the like by using the non-corrosion-proof terminal T1 without wastefully providing anti-corrosion. As a result, the wire harness WH can ensure appropriate anticorrosion performance in the entire wire harness WH mounted on the vehicle V. Thereby, for example, the wire harness WH can suppress the increase in size of the connector, the increase in weight, the increase in manufacturing cost, and the like while ensuring appropriate anticorrosion performance.
以上で説明したワイヤハーネスＷＨは、典型的には、腐食対策要求領域ＶＢ内において、相対的に細い導体部Ｗ１によって構成された配索材Ｗが適用された金属端子Ｔに防食端子Ｔ２が適用される。一方、ワイヤハーネスＷＨは、典型的には、腐食対策要求領域ＶＢ内において、相対的に太い導体部Ｗ１によって構成された配索材Ｗが適用された金属端子Ｔに非防食端子Ｔ１が適用される。この結果、ワイヤハーネスＷＨは、上記のように圧着部寿命が電気接続部寿命より短い金属端子Ｔに防食端子Ｔ２が適用され、圧着部寿命が電気接続部寿命より長い金属端子Ｔに非防食端子Ｔ１が適用されることとなる。したがって、ワイヤハーネスＷＨは、上記のように車両Ｖに搭載されるワイヤハーネスＷＨ全体において、適正な防食性能を確保することができる。 In the wire harness WH described above, the anticorrosion terminal T2 is typically applied to the metal terminal T to which the wiring material W composed of the relatively thin conductor portion W1 is applied in the corrosion countermeasure required region VB. Will be done. On the other hand, in the wire harness WH, the non-corrosion terminal T1 is typically applied to the metal terminal T to which the wiring material W composed of the relatively thick conductor portion W1 is applied in the corrosion countermeasure required region VB. To. As a result, in the wire harness WH, as described above, the anticorrosion terminal T2 is applied to the metal terminal T whose crimping portion life is shorter than the electrical connection portion life, and the non-corrosion terminal to the metal terminal T whose crimping portion life is longer than the electrical connection portion life. T1 will be applied. Therefore, the wire harness WH can ensure appropriate anticorrosion performance in the entire wire harness WH mounted on the vehicle V as described above.
なお、上述した本発明の実施形態に係るワイヤハーネスは、上述した実施形態に限定されず、特許請求の範囲に記載された範囲で種々の変更が可能である。 The wire harness according to the above-described embodiment of the present invention is not limited to the above-described embodiment, and various modifications can be made within the scope of the claims.
本実施形態に係るワイヤハーネスは、以上で説明した実施形態、変形例の構成要素を適宜組み合わせることで構成してもよい。 The wire harness according to the present embodiment may be configured by appropriately combining the components of the embodiments and modifications described above.
２、１０２ 電気接続部
３ 連結部
４ 配索材圧着部
１０ 母材
１１ メッキ
１２、１３ 接点部位
１４ 防食部
２１、１２１ 箱状部
２２ バネ接点部
２３ 端子挿入空間部
４１ 基部
４２、４３、４４、４５ バレル片部
４６ 導体圧着部
４７ 中間部
４８ 被覆圧着部
１２２ タブ部
Ｈ コネクタハウジング
Ｔ 金属端子
Ｔ１ 非防食端子
Ｔ１１ 非防食メス端子
Ｔ１２ 非防食オス端子
Ｔ２ 防食端子
Ｔ２１ 防食メス端子
Ｔ２２ 防食オス端子
Ｖ 車両
ＶＡ 腐食対策不要領域
ＶＢ 腐食対策要求領域
Ｗ 配索材
Ｗ１ 導体部
Ｗ２ 絶縁被覆部
ＷＨ ワイヤハーネス
Ｘ 軸方向
Ｙ 幅方向
Ｚ 高さ方向
2, 102 Electrical connection 3 Connection 4 Wire crimping part 10 Base material 11 Plating 12, 13 Contact part 14 Corrosion protection part 21, 121 Box-shaped part 22 Spring contact part 23 Terminal insertion space 41 Base 42, 43, 44 , 45 Barrel piece 46 Conductor crimping part 47 Intermediate part 48 Covering crimping part 122 Tab part H Connector housing T Metal terminal T1 Non-corrosion terminal T11 Non-corrosion female terminal T12 Non-corrosion male terminal T2 Anti-corrosion terminal T21 Anti-corrosion female terminal T22 Anti-corrosion male terminal V Vehicle VA Corrosion countermeasure unnecessary area VB Corrosion countermeasure required area W Wire distribution material W1 Conductor part W2 Insulation coating part WH Wire harness X Axial direction Y Width direction Z Height direction
Claims (2)
銅又は銅合金によって構成され、相手端子と電気的に接続される電気接続部、及び、前記導体部に対して圧着される導体圧着部を含む金属端子とを備え、
前記金属端子は、車両において腐食に対する対策が要求される腐食対策要求領域に複数設けられ、
前記腐食対策要求領域内の複数の前記金属端子は、前記導体圧着部に腐食を防止する防食が施された防食端子、及び、前記導体圧着部に腐食を防止する防食が施されていない非防食端子を含み、
前記防食端子は、腐食を防止する防食が施されていない状態での前記導体圧着部の前記導体部との接点部位の腐食に対する寿命が、前記電気接続部の前記相手端子との接点部位の腐食に対する寿命より短い前記金属端子であり、
前記非防食端子は、腐食を防止する防食が施されていない状態での前記導体圧着部の前記導体部との接点部位の腐食に対する寿命が、前記電気接続部の前記相手端子との接点部位の腐食に対する寿命より長い前記金属端子であることを特徴とする、
ワイヤハーネス。 A wiring material containing a conductor part made of aluminum or an aluminum alloy, and
It is provided with an electrical connection portion made of copper or a copper alloy and electrically connected to the mating terminal, and a metal terminal including a conductor crimping portion that is crimped to the conductor portion.
A plurality of the metal terminals are provided in a corrosion countermeasure required area where a countermeasure against corrosion is required in a vehicle.
The plurality of metal terminals in the corrosion countermeasure required region are anticorrosion terminals in which the conductor crimping portion is provided with anticorrosion protection, and non-corrosion protection in which the conductor crimping portion is not provided with anticorrosion protection. Including terminals
The corrosion-proof terminal has a life against corrosion of the contact portion of the conductor crimping portion with the conductor portion in a state where corrosion protection is not applied to prevent corrosion, and the corrosion of the contact portion of the electrical connection portion with the mating terminal. The metal terminal has a shorter life than the metal terminal.
In the non-corrosion-proof terminal, the life of the contact portion of the conductor crimping portion with the conductor portion in a state where corrosion protection is not applied is such that the life of the contact portion of the electrical connection portion with the mating terminal is long. The metal terminal has a longer life against corrosion.
Wire harness.
前記非防食端子は、太さが前記閾値以上である前記導体部に対して前記導体圧着部が圧着された前記金属端子である、
請求項１に記載のワイヤハーネス。 The anticorrosion terminal is a metal terminal in which the conductor crimping portion is crimped to the conductor portion whose thickness is less than a predetermined threshold value.
The non-corrosion terminal is the metal terminal in which the conductor crimping portion is crimped to the conductor portion whose thickness is equal to or larger than the threshold value.
The wire harness according to claim 1.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2023090108A1 (en) * | 2021-11-17 | 2023-05-25 | 住友電装株式会社 | Wiring system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04206178A (en) * | 1990-11-28 | 1992-07-28 | Fujikura Ltd | Hybrid connector |
| JP2012033378A (en) * | 2010-07-30 | 2012-02-16 | Auto Network Gijutsu Kenkyusho:Kk | Electric wire with terminal |
| JP2018063762A (en) * | 2016-10-11 | 2018-04-19 | 古河電気工業株式会社 | Method of manufacturing wire with terminal and wire with terminal |
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| JP4206178B2 (en) | 1999-09-27 | 2009-01-07 | 大日本スクリーン製造株式会社 | Substrate processing apparatus and substrate processing system |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04206178A (en) * | 1990-11-28 | 1992-07-28 | Fujikura Ltd | Hybrid connector |
| JP2012033378A (en) * | 2010-07-30 | 2012-02-16 | Auto Network Gijutsu Kenkyusho:Kk | Electric wire with terminal |
| JP2018063762A (en) * | 2016-10-11 | 2018-04-19 | 古河電気工業株式会社 | Method of manufacturing wire with terminal and wire with terminal |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023090108A1 (en) * | 2021-11-17 | 2023-05-25 | 住友電装株式会社 | Wiring system |
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