JP2005197135A - Power supply line for automobile - Google Patents
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- JP2005197135A JP2005197135A JP2004003419A JP2004003419A JP2005197135A JP 2005197135 A JP2005197135 A JP 2005197135A JP 2004003419 A JP2004003419 A JP 2004003419A JP 2004003419 A JP2004003419 A JP 2004003419A JP 2005197135 A JP2005197135 A JP 2005197135A
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本発明は、自動車用電源線に関し、特に屈曲性に富み、振動、屈曲力が頻繁に加わる部位への配索に有利な自動車用複合電線に関するものである。 The present invention relates to a power supply line for automobiles, and more particularly to a composite electric wire for automobiles that is highly flexible and is advantageous for wiring to a site where vibration and bending force are frequently applied.
自動車では、電装品等への電気的接続のために種々のタイプの電線が使用されている。その中で電装品等へ駆動電力を供給するための電源線があり、一般にその導体サイズ（全導体の断面積）は２．０ｍｍ２以上となっている。従来の自動車用電源線は、導体材料と導電率の良い軟銅が使用され、０．２６ｍｍφあるいは０．３２ｍｍφの径寸法の小径素線を複数本、例えば０．２６ｍｍφのものにあっては３７本撚り合わせて大電流（例えば７０℃の雰囲気中で１３Ａ程度、３０℃の雰囲気中で２９Ａ程度）を流すことができるように設計されている。 In automobiles, various types of electric wires are used for electrical connection to electrical components and the like. Among them, there is a power supply line for supplying driving power to electrical components and the like, and generally the conductor size (cross-sectional area of all conductors) is 2.0 mm 2 or more. Conventional power lines for automobiles are made of conductive material and soft copper with good electrical conductivity, and a plurality of small diameter strands with a diameter of 0.26 mmφ or 0.32 mmφ, for example, 37 for 0.26 mmφ. It is designed to allow a large current (for example, about 13 A in an atmosphere at 70 ° C., about 29 A in an atmosphere at 30 ° C.) to flow by twisting.
一方、近年の自動車においては、振動を多く受ける部位ないし屈曲を多く受ける部位に配策される電源線の使用量が増加している。このような部位において、頻繁に振動や屈曲力が加わると、断線を招くおそれがあり、従来の構造では屈曲性が十分（例えば１００万回の屈曲で断線が無きこと）とはいえなかった。例えば、径寸法０．２６ｍｍφの軟銅からなる素線を３７本撚り合わせて構成され、２．０ｍｍ２の導体サイズ（導体断面積）の導体を有する電源線を４本組にしたものに対して摺動屈曲試験（図１にその様子を示す）を行ったところ、要求される高屈曲性能の約８割しか達成していなかった。 On the other hand, in recent automobiles, the amount of power lines used for parts that receive a lot of vibration or parts that receive a lot of bending is increasing. If vibration or bending force is frequently applied in such a part, disconnection may be caused, and the conventional structure cannot be said to have sufficient flexibility (for example, there is no disconnection after one million bends). For example, for a power supply line consisting of 37 strands made of annealed copper with a diameter of 0.26 mmφ and having a conductor with a conductor size (conductor cross-sectional area) of 2.0 mm 2 in a set of 4 When a sliding bending test (as shown in FIG. 1) was performed, only about 80% of the required high bending performance was achieved.
本発明は、このような従来技術の問題点を解消し、屈曲性に富み、頻繁に振動や屈曲力が加わる部位への配索に有利な自動車用電源線を提供することをその課題とする。 An object of the present invention is to solve such problems of the prior art, and to provide an automotive power supply line that is rich in flexibility and advantageous in wiring to a site where vibration and bending force are frequently applied. .
本発明によれば、上記課題は下記の技術的手段により解決される。
（１）Ｃｕ−Ｓｎ合金（Ｓｎ０．２〜０．３％、残部Ｃｕ：（重量基準））からなる小径素線を複数本撚り合わせて構成される導体を有することを特徴とする自動車用電源線。
（２）前記小径素線を複数本撚り合わせてなる中径撚線をさらに複数本撚り合わせて構成される二重撚線構造を有することを特徴とする前記（１）に記載の自動車用電源線。
（３）前記小径素線を複数本撚り合わせてなる第１の中径撚線をさらに複数本撚り合わせて第２の中径素線を、さらに複数本撚り合わせて構成される三重撚線構造を有することを特徴とする前記（１）に記載の自動車用電源線。
（４）前記導体の断面積が２〜２０ｍｍ２であることを特徴とする前記（１）〜（３）のいずれかに記載の自動車用電源線。
According to the present invention, the above problem is solved by the following technical means.
(1) A power supply for an automobile having a conductor formed by twisting a plurality of small-diameter strands made of a Cu—Sn alloy (Sn 0.2 to 0.3%, balance Cu: (weight basis)) line.
(2) The automobile power supply according to (1) above, which has a double stranded wire structure configured by further twisting a plurality of medium-diameter stranded wires formed by twisting a plurality of the small-diameter strands. line.
(3) A triple twisted wire structure constituted by twisting a plurality of first medium-diameter strands formed by twisting a plurality of small-diameter strands and further twisting a plurality of second medium-diameter strands. The power line for automobiles according to (1) above, characterized by comprising:
(4) The automobile power line according to any one of (1) to (3), wherein a cross-sectional area of the conductor is 2 to 20 mm 2 .
本発明によれば、前記構成を採用したので、屈曲性に富み、頻繁に振動や屈曲力が加わる部位への配索に有利な自動車用電源線を提供することが可能となる。 According to this invention, since the said structure was employ | adopted, it becomes possible to provide the automotive power supply line which is rich in flexibility, and is advantageous for the wiring to the site | part to which a vibration and bending force are added frequently.
以下、本発明の実施の形態を好ましい実施例により説明する。 The preferred embodiments of the present invention will be described below.
本発明者は、軟銅からなる小径素線を撚り合わせて構成される従来の自動車用電源線で達成できなかった高屈曲性を実現すべく、小径素線の材料面から種々検討を行った結果、特定材料からなる特定組成の銅合金をその素線として用いると、電気的特性（導電性等）を損なわず、屈曲性に対する要求値（摺動屈曲試験において１００万回で断線無きこと）を達成できることを確認し、本発明を完成するに至った。
すなわち、その小径素線材料及び組成は、Ｃｕ−Ｓｎ合金（Ｓｎ０．２〜０．３％、残部Ｃｕ：（重量基準））である。
本発明で用いるＣｕ−Ｓｎ合金におけるＳｎの組成は０．２〜０．３重量％である。そしてその残部はＣｕである。Ｓｎの含有量が上記より少ないと屈曲性に対する上記要求値を満足することができなくなり、Ｓｎの含有量が上記より多いと導電性が低下しすぎて好ましくない。
As a result of various investigations from the material aspect of small-diameter strands, the present inventor has achieved a high flexibility that could not be achieved with conventional power supply wires for automobiles formed by twisting together small-diameter strands made of annealed copper. When a copper alloy of a specific composition made of a specific material is used as the element wire, it does not impair electrical characteristics (conductivity, etc.), and the required value for bendability (no disconnection after 1 million cycles in a sliding bend test) It was confirmed that it could be achieved, and the present invention was completed.
That is, the small-diameter strand material and composition are Cu—Sn alloys (Sn 0.2 to 0.3%, remaining Cu: (weight basis)).
The composition of Sn in the Cu—Sn alloy used in the present invention is 0.2 to 0.3% by weight. And the remainder is Cu. If the Sn content is less than the above, the required value for flexibility cannot be satisfied, and if the Sn content is more than the above, the conductivity is undesirably lowered.
本発明の自動車用電源線は、上記組成のＣｕ−Ｓｎ合金からなる小径素線を複数本撚り合わせて構成されるが、その撚線構造は一重の撚線構造でもよいし、小径素線を複数本撚り合わせて中径素線とし、それをさらに複数本撚り合わせた二重の撚線構造でもよい。また、中径素線をさらに複本撚り合わせて第２の中径素線とし、それをさらに撚り合わせた三重の撚線構造でもよい。 The power line for automobiles of the present invention is formed by twisting a plurality of small-diameter strands made of the Cu-Sn alloy having the above composition, but the stranded wire structure may be a single stranded wire structure or a small-diameter strand. A double twisted wire structure in which a plurality of strands are twisted to form a medium-diameter strand and then a plurality of strands are twisted together may be used. Further, a triple twisted wire structure in which a plurality of medium-diameter strands are twisted to form a second medium-diameter strand, which is further twisted, may be used.
本発明の自動車用電源線において、小径素線の径寸法は、用途、撚線構造（一重か、二重か、三重か）、配索部位等に応じて適宜設定されるが、通常０．０５〜０．２６ｍｍφ程度が適当である。小径素線の径寸法がこのような範囲であると、高屈曲性を得る観点から好都合である。 In the power line for automobiles of the present invention, the diameter of the small-diameter element wire is appropriately set according to the application, the twisted wire structure (single, double, or triple), the wiring site, and the like. A value of about 05 to 0.26 mmφ is appropriate. When the diameter of the small-diameter strand is within such a range, it is advantageous from the viewpoint of obtaining high flexibility.
素線径と撚線構造の関係を調べたところ、同じ導体サイズであっても小径素線の径寸法を小さくし、多本数とすると屈曲性はより向上することがわかった。また、撚線構造を二重化、三重化すると屈曲性がさらに一層向上することがわかった。例えば、導体サイズ１．２５ｍｍ２の電源線の場合、０．１８ｍｍφの小径素線を５０本撚り合わせたもの（サンプルＡ）に対し、０．１２ｍｍφの小径素線を１１２本撚り合わせたもの（サンプルＢ）は、屈曲性が１．２倍向上した。また、０．０８ｍｍφの小径素線を４０本撚り合わせて中径素線とし、この中径素線を７本撚り合わせた二重撚線構造のもの（サンプルＣ）は、屈曲性が３．９倍と著しく向上した。なお、上記サンプルＡ、Ｂ、Ｃのいずれも屈曲性に対する上記要求値を満足するものであった。 As a result of investigating the relationship between the strand diameter and the twisted wire structure, it was found that even if the conductor size was the same, the diameter of the small-diameter strand was reduced, and the flexibility was further improved by increasing the number of strands. It was also found that the flexibility is further improved when the twisted wire structure is doubled or tripled. For example, in the case of a power supply line with a conductor size of 1.25 mm 2, a twist of 112 small diameter strands of 0.12 mmφ (sample A) with 50 strands of 0.18 mmφ small diameter strands (sample A) ( Sample B) was improved in flexibility by a factor of 1.2. In addition, a double stranded wire structure (sample C) in which 40 small 0.08 mmφ strands are twisted to form a medium strand and 7 medium strands are twisted (sample C) has a flexibility of 3. It improved significantly by 9 times. In addition, all of the samples A, B, and C satisfied the required value for flexibility.
また、本発明の自動車用電源線の導体の断面積は、用途、配索部位等に応じて適宜設定されるが、通常２．０ｍｍ２程度が適当である。導体の断面積がこのような範囲であると、自動車用電源線としてのニーズに十分沿うものとなる。
本発明の自動車用電源線は上記のような構成の導体の周囲に絶縁被覆が設けられる。その被覆材としては、ポリ塩化ビニル、架橋ポリエチレン等の樹脂材料が一般的に使用される。図２に本発明による自動車用電源線の構造例を模式的に断面図で示す。図中１１が自動車用電源線、１２が電源線導体、１３が絶縁被覆である。
Moreover, the cross-sectional area of the conductor of the power line for automobiles of the present invention is appropriately set according to the application, the wiring site, etc., but about 2.0 mm 2 is usually appropriate. When the cross-sectional area of the conductor is in such a range, the needs as a power line for automobiles are sufficiently met.
The power line for automobiles of the present invention is provided with an insulating coating around the conductor having the above-described configuration. As the covering material, resin materials such as polyvinyl chloride and crosslinked polyethylene are generally used. FIG. 2 is a cross-sectional view schematically showing a structural example of a power line for automobiles according to the present invention. In the figure, 11 is an automotive power line, 12 is a power line conductor, and 13 is an insulation coating.
次に、本発明で用いる銅合金と従来用いられている純銅の曲げ疲労データを図３に示す。銅合金はＣｕ−Ｓｎ（Ｓｎ０．３重量％）である。図３において横軸が屈曲回数、縦軸が曲げ歪みである。同図より、本発明で用いる銅合金は純銅より屈曲に強い材料であることがわかる。 Next, FIG. 3 shows bending fatigue data of the copper alloy used in the present invention and conventionally used pure copper. The copper alloy is Cu-Sn (Sn 0.3 wt%). In FIG. 3, the horizontal axis represents the number of bendings, and the vertical axis represents the bending strain. From the figure, it can be seen that the copper alloy used in the present invention is a material more resistant to bending than pure copper.
図４は本発明による二重撚線構造の作製例と従来例の屈曲性を比較したものである。本発明による作製例のものは径寸法０．０８ｍｍφの銅合金（Ｃｕ―Ｓｎ（Ｓｎ０．３％））からなる小径素線を６０本撚り合わせて中径素線とし、それをさらに７本撚り合わせて導体サイズ２．０ｍｍ２の導体としている。従来例は径寸法０．２６ｍｍφの軟銅からなる小径素線を３７本撚り合わせて導体サイズ２．０ｍｍ２の導体としている。試験方法は図５に示す方法である。
図から明らかなように、本発明の作製例は従来例と比べて１０倍程度屈曲性が向上している。
また、上記作製例と従来例の自動車用電源線を４本組にして図１に示す摺動屈曲試験を行った。その結果、本発明による作製例は屈曲断線回数が１００万回を超えたのに対し、従来例は８３万回であり、本発明による優位性が確認された。なお、４本の組のうち１本がダメになっても断線とした。
FIG. 4 is a comparison of the bendability of an example of production of a double stranded wire structure according to the present invention and a conventional example. In the example of production according to the present invention, 60 small-diameter strands made of a copper alloy (Cu—Sn (Sn 0.3%)) having a diameter of 0.08 mmφ are twisted to form medium-diameter strands, which are further twisted by 7 strands. Together, the conductor size is 2.0 mm 2 . In the conventional example, 37 small-diameter strands made of annealed copper having a diameter of 0.26 mmφ are twisted to form a conductor having a conductor size of 2.0 mm 2 . The test method is the method shown in FIG.
As is apparent from the drawing, the flexibility of the production example of the present invention is improved by about 10 times compared to the conventional example.
In addition, the sliding bending test shown in FIG. As a result, the number of bending breaks in the production example according to the present invention exceeded 1 million, whereas that in the conventional example was 830,000, and the superiority according to the present invention was confirmed. It should be noted that even if one of the four groups was damaged, it was disconnected.
図６〜図９は、それぞれ本発明で用いる銅合金においてＳｎを含有させたことによる引張強さ、屈曲断線回数、導電率、導体抵抗への影響を純銅と比較して示したものである。
これらの図から、（１）Ｓｎの含有量が多いほど、引張強さが大きくなる、（２）Ｓｎの含有量が多いほど、屈曲断線回数が大きくなる、（３）Ｓｎの含有量が多いほど、導電性が悪くなる、（４）Ｓｎの含有量が多いほど、導体抵抗が悪くなる、ことがわかる。
これらのデータからも、本発明で用いる銅合金においてＳｎの含有量を前記範囲に設定すれば、電気的特性を良好に維持しつつ高屈曲性を実現できることが理解される。
FIGS. 6 to 9 show the effects on the tensile strength, the number of bending breaks, the conductivity, and the conductor resistance of Sn contained in the copper alloy used in the present invention in comparison with pure copper.
From these figures, (1) the greater the Sn content, the greater the tensile strength, (2) the greater the Sn content, the greater the number of flex breaks, and (3) the greater Sn content. It can be seen that the conductivity becomes worse, and (4) the conductor resistance becomes worse as the Sn content increases.
From these data, it is understood that if the Sn content in the copper alloy used in the present invention is set within the above range, high flexibility can be realized while maintaining good electrical characteristics.
１１ 自動車用電源線
１２ 電源線導体
１３ 絶縁被覆
11 automotive power line 12 power line conductor 13 insulation coating
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004003419A JP2005197135A (en) | 2004-01-08 | 2004-01-08 | Power supply line for automobile |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004003419A JP2005197135A (en) | 2004-01-08 | 2004-01-08 | Power supply line for automobile |
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| JP2005197135A true JP2005197135A (en) | 2005-07-21 |
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| JP2004003419A Pending JP2005197135A (en) | 2004-01-08 | 2004-01-08 | Power supply line for automobile |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102017206833A1 (en) | 2016-04-25 | 2017-10-26 | Yazaki Corporation | Highly bendable insulated electrical cable and wiring harness |
| EP3291246A1 (en) | 2016-09-02 | 2018-03-07 | G.S. Electech, Inc. | Flexible conductive wire structure |
| DE102018211962A1 (en) | 2017-07-20 | 2019-01-24 | Yazaki Corporation | Highly flexible insulated electric wire |
| WO2019083039A1 (en) * | 2017-10-26 | 2019-05-02 | 古河電気工業株式会社 | Carbon nanotube composite wire, carbon nanotube-coated electric wire, and wire harness |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62142018U (en) * | 1986-03-01 | 1987-09-08 | ||
| JPS63150915U (en) * | 1987-03-26 | 1988-10-04 | ||
| JPH0719901U (en) * | 1993-09-17 | 1995-04-07 | エヌ・ティ・ティ・アドバンステクノロジ株式会社 | Flashlight with memo function |
| JPH07131897A (en) * | 1993-10-29 | 1995-05-19 | Himu Kenkyusho:Kk | Aid for hearing and visual senses |
| JPH0739074U (en) * | 1993-12-24 | 1995-07-14 | 京子 洪水 | Display screen reader |
| JPH1186622A (en) * | 1997-09-09 | 1999-03-30 | Sharp Corp | Lighting means and reflection type liquid crystal display device provided with it |
-
2004
- 2004-01-08 JP JP2004003419A patent/JP2005197135A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62142018U (en) * | 1986-03-01 | 1987-09-08 | ||
| JPS63150915U (en) * | 1987-03-26 | 1988-10-04 | ||
| JPH0719901U (en) * | 1993-09-17 | 1995-04-07 | エヌ・ティ・ティ・アドバンステクノロジ株式会社 | Flashlight with memo function |
| JPH07131897A (en) * | 1993-10-29 | 1995-05-19 | Himu Kenkyusho:Kk | Aid for hearing and visual senses |
| JPH0739074U (en) * | 1993-12-24 | 1995-07-14 | 京子 洪水 | Display screen reader |
| JPH1186622A (en) * | 1997-09-09 | 1999-03-30 | Sharp Corp | Lighting means and reflection type liquid crystal display device provided with it |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102017206833A1 (en) | 2016-04-25 | 2017-10-26 | Yazaki Corporation | Highly bendable insulated electrical cable and wiring harness |
| US10242766B2 (en) | 2016-04-25 | 2019-03-26 | Yazaki Corporation | Highly bendable insulated electric wire and wire harness |
| EP3291246A1 (en) | 2016-09-02 | 2018-03-07 | G.S. Electech, Inc. | Flexible conductive wire structure |
| DE102018211962A1 (en) | 2017-07-20 | 2019-01-24 | Yazaki Corporation | Highly flexible insulated electric wire |
| US10600531B2 (en) | 2017-07-20 | 2020-03-24 | Yazaki Corporation | Highly bendable insulated electric wire |
| DE102018211962B4 (en) | 2017-07-20 | 2021-12-16 | Yazaki Corporation | Highly flexible insulated electrical wire and harness |
| WO2019083039A1 (en) * | 2017-10-26 | 2019-05-02 | 古河電気工業株式会社 | Carbon nanotube composite wire, carbon nanotube-coated electric wire, and wire harness |
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