JPH1145620A - Wire harness - Google Patents
Wire harnessInfo
- Publication number
- JPH1145620A JPH1145620A JP9202854A JP20285497A JPH1145620A JP H1145620 A JPH1145620 A JP H1145620A JP 9202854 A JP9202854 A JP 9202854A JP 20285497 A JP20285497 A JP 20285497A JP H1145620 A JPH1145620 A JP H1145620A
- Authority
- JP
- Japan
- Prior art keywords
- resin
- wire harness
- wire
- corrugated tube
- inorganic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Landscapes
- Insulated Conductors (AREA)
- Details Of Indoor Wiring (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明はワイヤハーネスに関
し、詳しくは、車体搭載時に必要な難燃性を有するとと
もに、廃却時の燃焼過程で有害なハロゲン系ガスを発生
しないようにし、かつ、コストの低減を図るものであ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wire harness, and more particularly, to a wire harness which has the necessary flame retardancy when mounted on a vehicle body, prevents harmful halogen-based gas from being generated in the combustion process at the time of disposal, and reduces costs. Is to be reduced.
【0002】[0002]
【従来の技術】従来のワイヤハーネスでは、一般に、電
線の外皮材(被覆材)としてPVC(ポリ塩化ビニル)
等のハロゲン系ポリマーやオレフィン系樹脂にハロゲン
系難燃剤を含有させた難燃性の樹脂材料を用い、電線に
万が一異常が発生しても被覆材が燃えることがないよう
にしている。一方、電線束に外装しているコルゲートチ
ューブには通常ハロゲンを含有しないポリプロピレン等
の非難燃性の樹脂材料を使用している。2. Description of the Related Art In a conventional wire harness, generally, PVC (polyvinyl chloride) is used as a sheath material (coating material) of an electric wire.
Using a flame-retardant resin material containing a halogen-based flame retardant in a halogen-based polymer or an olefin-based resin such as that described above, even if an abnormality occurs in the electric wire, the coating material is not burned. On the other hand, a non-flame-retardant resin material such as polypropylene, which does not usually contain halogen, is used for the corrugated tube sheathed on the wire bundle.
【0003】近年、資源節約の点から、車体の廃却時、
電線の被覆材及び電線束に外装しているコルゲートチュ
ーブや電線を燃焼して、電線材料である銅を取り出し、
銅をリサイクルするようにしている。電線の被覆材は上
記のようにに難燃性ではあるが、車体の廃却時の燃焼温
度は800℃まで高めるので、電線の被覆材も非難燃性
のコルゲートチューブとともに、燃焼することができ
る。[0003] In recent years, from the point of resource saving, when the body is discarded,
Burning the corrugated tube and the wires that are sheathed in the wire covering material and wire bundle, and taking out the copper that is the wire material,
We try to recycle copper. Although the covering material of the electric wire is flame-retardant as described above, since the combustion temperature at the time of disposing of the vehicle body is increased to 800 ° C., the covering material of the electric wire can also burn together with the non-flammable corrugated tube. .
【0004】[0004]
【発明が解決しようとする課題】上記従来のワイヤハー
ネスの廃却時、ハロゲンを含有する電線の被覆材の燃焼
によって、有害なハロゲンガスが比較的多量に発生する
ので、環境汚染を引き起こす危険性がある。そこで、電
線の被覆材にハロゲンの代わりに水酸化アルミニウムや
水酸化カルシウム等の無機系難燃剤を配合することも試
みたが、この無機系難燃剤を配合した場合、被覆材の耐
摩耗性、耐寒性、耐屈曲性等が劣悪になってしまう。こ
のため、被覆材に無機系難燃剤とともに上記の特性劣化
を改善するための改質剤を添加することも試みている
が、この場合は、被覆材が硬くなり、電線の加工性が低
下するので、ワイヤハーネスの生産性が低下し、コスト
高になってしまう。When the conventional wire harness is discarded, the harmful halogen gas is generated in a relatively large amount by the burning of the covering material of the electric wire containing the halogen, which may cause environmental pollution. There is. Therefore, an attempt was made to mix an inorganic flame retardant such as aluminum hydroxide or calcium hydroxide in place of the halogen in the covering material of the electric wire, but when the inorganic flame retardant was added, the abrasion resistance of the covering material, Cold resistance, bending resistance, etc. will be inferior. For this reason, an attempt has been made to add a modifier for improving the above-mentioned property deterioration together with the inorganic flame retardant to the coating material, but in this case, the coating material becomes hard and the workability of the electric wire decreases. Therefore, the productivity of the wire harness decreases and the cost increases.
【0005】本発明は上記のような事情に鑑みてなされ
たもので、車体搭載時(実使用時)には難燃性を確保す
ると共に、廃却時の燃焼過程では電線の被覆材及びコル
ゲートチューブが有害ガスを発生することなく燃焼し、
しかも、コストの小さいワイヤハーネスを提供すること
を課題としている。SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned circumstances, and ensures flame retardancy when mounted on a vehicle body (at the time of actual use). The tube burns without generating harmful gases,
Moreover, it is an object to provide a wire harness with low cost.
【0006】[0006]
【課題を解決するための手段】上記課題を解決するため
に、本発明は、請求項1で、ハロゲンを含まない樹脂で
被覆した電線の束を、ハロゲンを含まず、かつ、無機系
難燃剤を含有する樹脂組成物からなるコルゲートチュー
ブで外装したことを特徴とするワイヤハーネスを提供し
ている。In order to solve the above-mentioned problems, according to the present invention, a bundle of electric wires coated with a halogen-free resin is provided by using a halogen-free inorganic flame retardant. The present invention provides a wire harness characterized by being covered with a corrugated tube made of a resin composition containing
【0007】上記構成のワイヤハーネスでは、各電線の
被覆材及び電線束に外装したコルゲートチューブのいず
れもがハロゲンを含まないので、ワイヤハーネスの廃却
時にこれらを燃焼しても、有害なハロゲンガスを発生す
ることがない。[0007] In the wire harness having the above structure, since neither the covering material of each wire nor the corrugated tube sheathed in the wire bundle contains halogen, even if these are burned when the wire harness is discarded, harmful halogen gas is generated. Will not occur.
【0008】また、実使用時(車体搭載時)において
は、電線に万が一異常が発生しても無機系難燃剤を含有
する難燃性の高いコルゲートチューブでが覆われている
ので、ワイヤハーネが燃えることはない。In addition, in actual use (when mounted on a vehicle body), even if an abnormality occurs in the electric wire, the wire harness burns because it is covered with a highly flame-retardant corrugated tube containing an inorganic flame retardant. Never.
【0009】また、電線の被覆材は無機系難燃剤を含有
しないので、耐摩耗性、耐寒性、耐屈曲性等の劣化がな
く、良好な電線保護性能を示す。また、剛性(硬度)も
適度であるので、ワイヤハーネス組み立て時の電線の加
工性が良好になり、生産性が向上する。一方、コルゲー
トチューブは無機系難燃剤の配合によって耐摩耗性、耐
寒性、耐屈曲性等が劣化する傾向を示すが、コルゲート
チューブは電線に直接接触せず、上記被覆材で被覆され
た電線の束を覆うものであり、かつ、それ自体は長手方
向に連続する凹凸を有する蛇腹形状で、屈曲変形しやす
いので、従来の無機系難燃剤を含有しないコルゲートチ
ューブとほぼ同等の保護性能を得ることができる。よっ
て、ワイヤハーネ全体としては、従来と同等またはそれ
以上の電線保護効果を得ることができ、しかも、製造コ
ストが小さくなる。Further, since the covering material of the electric wire does not contain an inorganic flame retardant, it does not deteriorate in abrasion resistance, cold resistance, bending resistance and the like, and shows good electric wire protection performance. In addition, since the rigidity (hardness) is moderate, the workability of the electric wire at the time of assembling the wire harness is improved, and the productivity is improved. On the other hand, corrugated tubes show a tendency to deteriorate abrasion resistance, cold resistance, bending resistance, etc. due to the blending of the inorganic flame retardant, but the corrugated tube does not directly contact the electric wire, and the electric wire covered with the coating material It covers the bundle and has a bellows shape with irregularities that are continuous in the longitudinal direction itself, and is easy to bend and deform, so it can obtain almost the same protection performance as conventional corrugated tubes that do not contain inorganic flame retardants Can be. Therefore, as a whole, a wire protection effect equal to or higher than that of the conventional wire harness can be obtained, and the manufacturing cost is reduced.
【0010】上記コルゲートチューブとしては、従来か
らこの種のコルゲートチューブの材料として用いられて
いる熱可塑性または熱硬化性の絶縁性樹脂に無機系難燃
剤を配合した樹脂組成物をコルゲートチューブに成形し
たものを使用できる。絶縁性樹脂としては、ポリプロピ
レン樹脂またはポリアミド樹脂を用いるのが好ましく、
該ポリプロピレン樹脂またはポリアミド樹脂100重量
部に対して50〜300重量部の無機系難燃剤を配合し
た樹脂組成物を用いるのが好ましい(請求項2)。As the corrugated tube, a resin composition in which an inorganic flame retardant is blended with a thermoplastic or thermosetting insulating resin, which has been conventionally used as a material for this type of corrugated tube, is formed into a corrugated tube. Anything can be used. As the insulating resin, it is preferable to use a polypropylene resin or a polyamide resin,
It is preferable to use a resin composition containing 50 to 300 parts by weight of an inorganic flame retardant per 100 parts by weight of the polypropylene resin or the polyamide resin (Claim 2).
【0011】無機系難燃剤としては、特に限定はされな
いが、水酸化アルミニウム、水酸化カルシウム、水酸化
マグネシウム、炭酸マグネシウム、ハイドロタルサイト
類等の無機金属化合物系難燃剤や、赤リン、ポリリン酸
アンモニウム等のリン化合物系難燃剤を用いるのが好ま
しい(請求項3)。The inorganic flame retardant is not particularly limited. However, inorganic metal compound flame retardants such as aluminum hydroxide, calcium hydroxide, magnesium hydroxide, magnesium carbonate, hydrotalcite, etc., red phosphorus, polyphosphoric acid It is preferable to use a phosphorus compound flame retardant such as ammonium (claim 3).
【0012】また、上記無機系難燃剤と共に難燃補助剤
としてホウ酸亜鉛、シリカ、酸化アンチモン等を併用し
てもよい。この難燃補助剤は1〜50重量部の範囲で使
用するのが好ましい。Further, zinc borate, silica, antimony oxide and the like may be used in combination with the inorganic flame retardant as a flame retardant auxiliary. It is preferable to use this flame retardant auxiliary in the range of 1 to 50 parts by weight.
【0013】また、電線の被覆材としては、ある程度の
柔軟性を有する絶縁性樹脂が好ましく、例えば、ポリエ
チレン、ポリプロピレン、エチレン−酢酸ビニル共重合
体、エチレン−αオレフィン共重合体、エチレン−プロ
ピレン共重合体等のオレフィン系樹脂を挙げることがで
き、これら例示のうちの1種または2種以上を混合して
使用するのが好ましい。特に、ポリエチレンとエチレン
−酢酸ビニル共重合体の混合物が電線被覆性、耐屈曲性
等の点で好ましい(請求項4)。As the covering material of the electric wire, an insulating resin having a certain degree of flexibility is preferable. For example, polyethylene, polypropylene, ethylene-vinyl acetate copolymer, ethylene-α-olefin copolymer, ethylene-propylene copolymer Olefin resins such as polymers can be mentioned, and it is preferable to use one or more of these examples in combination. In particular, a mixture of polyethylene and an ethylene-vinyl acetate copolymer is preferred in terms of wire covering properties, bending resistance, and the like (claim 4).
【0014】また、電線の被覆材中には、例えば、テト
ラキス−[メチレン−3−(3´,5´−t−ブチル−
4´−ヒドロキシフェニル)プロピオネート]メタン等
のヒンダ−ト・フェノール系物質等の酸化防止剤、炭酸
カルシウム、タルク、クレー等の無機充填剤、ステアリ
ン酸金属塩等の脂肪酸金属塩(せっけん類)、1,2,
3−ベンゾトリアゾール等の金属不活性剤、酸化チタ
ン、カーボンブラック、黄鉛等の無機顔料、ジスアゾエ
ロー等の有機顔料を所望の目的に応じて添加してもよ
い。これらの添加剤は被覆材全体当たり1〜10重量%
程度とするのが好ましい。In addition, for example, tetrakis- [methylene-3- (3 ', 5'-t-butyl-
4'-hydroxyphenyl) propionate] an antioxidant such as a hindered phenolic substance such as methane; an inorganic filler such as calcium carbonate, talc and clay; a fatty acid metal salt such as a metal stearate (soap); 1,2,
A metal deactivator such as 3-benzotriazole, an inorganic pigment such as titanium oxide, carbon black and graphite, and an organic pigment such as disazo yellow may be added according to a desired purpose. These additives are 1 to 10% by weight based on the whole coating material.
It is preferable to set the degree.
【0015】[0015]
【発明の実施形態】図1は本発明のワイヤハーネスの一
実施形態を示す。図(A)は電線で、該電線wは銅線1
にポリエチレンとエチレン−酢酸ビニル共重合体を重量
比(ポリエチレン:エチレンと酢酸ビニル共重合体)
7:3で混合した混合物からなる厚み0.3mmの樹脂
層2で被覆している。なお、銅線1の代わりに、スズメ
ッキ銅線等の公知の導体線を用いることができ、また、
導体線は単線または撚線のいずれの形態でもよい。FIG. 1 shows an embodiment of a wire harness according to the present invention. Figure (A) is an electric wire, and the electric wire w is a copper wire 1
Weight ratio of polyethylene and ethylene-vinyl acetate copolymer (polyethylene: ethylene and vinyl acetate copolymer)
It is covered with a 0.3 mm thick resin layer 2 made of a mixture mixed at 7: 3. In addition, a known conductor wire such as a tin-plated copper wire can be used in place of the copper wire 1, and
The conductor wire may be either a single wire or a stranded wire.
【0016】図(B)は、ポリプロピレン樹脂100重
量部に対して無機系難燃剤である水酸化マグネシウムを
50重量部、難燃補助剤である赤リンを3重量部配合し
て混練した樹脂組成物を用い、これを射出成形して、外
径10〜20mm、肉厚0.3mmで、凹凸ピッチ(隣
接する凹部と凹部の間隔(凸部と凸部の間隔))が3〜
5mmの蛇腹を有する円筒形状としたコルゲートチュー
ブ3である。FIG. 1B shows a resin composition obtained by mixing and kneading 50 parts by weight of inorganic flame retardant magnesium hydroxide and 3 parts by weight of red phosphorus as a flame retardant auxiliary agent with respect to 100 parts by weight of polypropylene resin. The product is injection-molded, and has an outer diameter of 10 to 20 mm, a thickness of 0.3 mm, and a pitch of irregularities (interval between adjacent concave portions (interval between convex portions and convex portions)) of 3 to 3.
This is a cylindrical corrugated tube 3 having a bellows of 5 mm.
【0017】図(C)は上記電線wを用い、図示しない
図板上で電線wを布線図に基づいて所定の形態に布線
し、コルゲートチューブ3を外装して完成させたワイヤ
ハーネスW/Hである。なお、図中の4は電線wの先端
に取り付けたコネクタである。このワイヤハーネスW/
Hの作製時、電線の布線工程で、電線wの樹脂層2は柔
軟に変形し、作業性良く電線を布線することができた。FIG. 2C shows a wire harness W completed by using the above-described electric wire w, laying the electric wire w in a predetermined form on a drawing board (not shown) based on a wiring diagram, and externally mounting the corrugated tube 3. / H. Reference numeral 4 in the drawing denotes a connector attached to the tip of the electric wire w. This wire harness W /
During the preparation of H, the resin layer 2 of the electric wire w was flexibly deformed in the electric wire laying process, and the electric wire could be laid with good workability.
【0018】上記ワイヤハーネスW/Hについて以下の
試験を行った。先ず、電線wを通電により発熱させ、ワ
イヤハーネスW/Hが燃えるか否かを観察した。観察の
結果、電線の被覆材は焦げたがコルゲートチューブは全
く燃えずワイヤハーネスW/Hの不燃性を確認できた。The following tests were conducted on the above-mentioned wire harness W / H. First, the electric wire w was heated by energization to observe whether or not the wire harness W / H burned. As a result of the observation, the coating material of the electric wire was burnt, but the corrugated tube did not burn at all, and the non-combustibility of the wire harness W / H was confirmed.
【0019】次に、上記ワイヤハーネスW/Hを炉内に
入れ、800℃で燃焼した。電線wの樹脂層2及びコル
ゲートチューブ3は燃焼して焼き飛ばされ、電線wの銅
線1のみを取り出すことができた。また、この燃焼時、
有害ガスの発生は認められなかった。Next, the wire harness W / H was placed in a furnace and burned at 800.degree. The resin layer 2 and the corrugated tube 3 of the electric wire w were burned and burned off, and only the copper wire 1 of the electric wire w could be taken out. Also, during this combustion,
No harmful gas was generated.
【0020】[0020]
【発明の効果】以上の説明から明らかなように、本発明
のワイヤハーネスによれば、通常使用時の不燃性を確保
でき、しかも、廃却時は有害ガスを発生することなく電
線の被覆材及びコルゲートチューブを焼き飛ばすことが
できる。As is apparent from the above description, according to the wire harness of the present invention, non-flammability during normal use can be ensured, and further, no harmful gas is generated at the time of disposal. And the corrugated tube can be burned off.
【0021】また、電線の被覆材の耐摩耗性、耐寒性、
耐屈曲性等が従来のワイヤハーネスよりも良好になり、
電線保護効果が向上し、しかも、ワイヤハーネスW/H
組み立て時の電線の布線作業の作業性が向上する。よっ
て、従来よりもワイヤハーネスの製造コストを低減でき
る。Further, the abrasion resistance, cold resistance,
Bending resistance etc. are better than conventional wire harness,
The wire protection effect is improved, and the wire harness W / H
The workability of wiring the wires during assembly is improved. Therefore, the manufacturing cost of the wire harness can be reduced as compared with the related art.
【図1】 本発明の一実施形態を示し、(A)は電線の
要部斜視図、(B)はコルゲートチューブの要部斜視
図、(C)はワイヤハーネスの要部斜視図である。FIG. 1 shows an embodiment of the present invention, in which (A) is a perspective view of a main part of an electric wire, (B) is a perspective view of a main part of a corrugated tube, and (C) is a perspective view of a main part of a wire harness.
1 銅線 2 樹脂層 3 コルゲートチューブ 4 コネクタ w 電線 W/H ワイヤハーネス DESCRIPTION OF SYMBOLS 1 Copper wire 2 Resin layer 3 Corrugated tube 4 Connector w Electric wire W / H Wire harness
Claims (4)
線の束を、ハロゲンを含まず、かつ、無機系難燃剤を含
有する樹脂組成物からなるコルゲートチューブで外装し
たことを特徴とするワイヤハーネス。1. A wire harness, wherein a bundle of electric wires covered with a resin containing no halogen is covered with a corrugated tube made of a resin composition containing no halogen and containing an inorganic flame retardant.
ン樹脂またはポリアミド樹脂100重量部に対して50
〜300重量部の無機系難燃剤を配合した樹脂組成物を
成形したものである請求項1に記載のワイヤハーネス。2. The said corrugated tube is 50 parts by weight with respect to 100 parts by weight of polypropylene resin or polyamide resin.
The wire harness according to claim 1, wherein a resin composition containing -300 parts by weight of an inorganic flame retardant is molded.
燃剤及びリン化合物系難燃剤から選ばれる少なくとも1
つである請求項1または2に記載のワイヤハーネス。3. The at least one inorganic flame retardant selected from inorganic metal compound flame retardants and phosphorus compound flame retardants.
The wire harness according to claim 1 or 2, wherein:
チレン−酢酸ビニル共重合体の混合物である請求項1〜
3のいずれか一項に記載のワイヤハーネス。4. The electric wire coating resin is a mixture of polyethylene and ethylene-vinyl acetate copolymer.
4. The wire harness according to claim 3.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9202854A JPH1145620A (en) | 1997-07-29 | 1997-07-29 | Wire harness |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9202854A JPH1145620A (en) | 1997-07-29 | 1997-07-29 | Wire harness |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH1145620A true JPH1145620A (en) | 1999-02-16 |
Family
ID=16464302
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9202854A Withdrawn JPH1145620A (en) | 1997-07-29 | 1997-07-29 | Wire harness |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH1145620A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001110241A (en) * | 1999-10-13 | 2001-04-20 | Ube Ind Ltd | Wire harness |
EP1157893A2 (en) * | 2000-05-25 | 2001-11-28 | Autonetworks Technologies, Ltd. | Wire-harness |
JP2008037168A (en) * | 2006-08-02 | 2008-02-21 | Yazaki Corp | Mounting structure for electric device |
JP2014147272A (en) * | 2013-01-30 | 2014-08-14 | Kowa Kasei Kk | Electric wire processing tool |
-
1997
- 1997-07-29 JP JP9202854A patent/JPH1145620A/en not_active Withdrawn
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001110241A (en) * | 1999-10-13 | 2001-04-20 | Ube Ind Ltd | Wire harness |
EP1157893A2 (en) * | 2000-05-25 | 2001-11-28 | Autonetworks Technologies, Ltd. | Wire-harness |
EP1157893A3 (en) * | 2000-05-25 | 2003-03-05 | Autonetworks Technologies, Ltd. | Wire-harness |
JP2008037168A (en) * | 2006-08-02 | 2008-02-21 | Yazaki Corp | Mounting structure for electric device |
JP2014147272A (en) * | 2013-01-30 | 2014-08-14 | Kowa Kasei Kk | Electric wire processing tool |
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