JPH02181313A - Flexible shield material and shielded electric wire - Google Patents
Flexible shield material and shielded electric wireInfo
- Publication number
- JPH02181313A JPH02181313A JP33471888A JP33471888A JPH02181313A JP H02181313 A JPH02181313 A JP H02181313A JP 33471888 A JP33471888 A JP 33471888A JP 33471888 A JP33471888 A JP 33471888A JP H02181313 A JPH02181313 A JP H02181313A
- Authority
- JP
- Japan
- Prior art keywords
- plastic
- conductive rubber
- metal powder
- metal
- electric wire
- 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.)
- Pending
Links
- 239000000463 material Substances 0.000 title claims abstract description 22
- 229910052751 metal Inorganic materials 0.000 claims abstract description 28
- 239000002184 metal Substances 0.000 claims abstract description 28
- 239000000843 powder Substances 0.000 claims abstract description 20
- 229920001971 elastomer Polymers 0.000 claims abstract description 18
- 239000004033 plastic Substances 0.000 claims abstract description 18
- 229920003023 plastic Polymers 0.000 claims abstract description 18
- 239000005060 rubber Substances 0.000 claims abstract description 18
- 229910001338 liquidmetal Inorganic materials 0.000 claims abstract description 15
- 239000004020 conductor Substances 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 8
- 239000000203 mixture Substances 0.000 abstract description 4
- -1 polyethylene Polymers 0.000 abstract description 4
- 239000004698 Polyethylene Substances 0.000 abstract description 2
- 229920005549 butyl rubber Polymers 0.000 abstract description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract description 2
- 239000004014 plasticizer Substances 0.000 abstract description 2
- 229920000573 polyethylene Polymers 0.000 abstract description 2
- 239000004800 polyvinyl chloride Substances 0.000 abstract description 2
- 229920000915 polyvinyl chloride Polymers 0.000 abstract description 2
- 239000000654 additive Substances 0.000 abstract 1
- 238000005452 bending Methods 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000181 Ethylene propylene rubber Polymers 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000009954 braiding Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- HQQADJVZYDDRJT-UHFFFAOYSA-N ethene;prop-1-ene Chemical group C=C.CC=C HQQADJVZYDDRJT-UHFFFAOYSA-N 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000006247 magnetic powder Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229920006122 polyamide resin Polymers 0.000 description 1
- 229920005749 polyurethane resin Polymers 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
Landscapes
- Communication Cables (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
Description
【発明の詳細な説明】
〈産業上の利用分野〉
この発明は電子応用機器等において可視性を要求される
ような箇所で使用するに適したシールド材料およびシー
ルド電線に関する。DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a shielding material and a shielded wire suitable for use in places where visibility is required in electronic application equipment and the like.
〈従来の技術、発明が解決すべき課題〉近時電子応用機
器の発展に伴い、電磁波対策として電線にはシールドを
施すことが非常に多くなってきている。<Background Art and Problems to be Solved by the Invention> With the recent development of applied electronic equipment, electric wires are increasingly being shielded as a countermeasure against electromagnetic waves.
またロボット用電線で代表されるような反復した屈曲に
さらされるような箇所で使用される電線は耐屈曲性が要
求される。Further, electric wires used in places where they are exposed to repeated bending, such as electric wires for robots, are required to have bending resistance.
従来屈曲性のよい電線のシールドと言えば、銅素線を編
組して形成した＆Ｉ組シールドがよく知られている。し
かしこのような金属線編組シールド構造のケーブルは、
ケーブル外径に比し非常に小さな曲率で、しかも屈曲回
数の多い使用条件においては反復する屈曲で金属線が疲
労破壊を起こため、シールド効果が急に減少すると言う
問題がある。Conventionally, when it comes to shielding electric wires with good flexibility, the &I set shield formed by braiding copper wires is well known. However, cables with a metal wire braided shield structure like this
If the cable has a very small curvature compared to the outer diameter of the cable and is used under conditions of frequent bending, repeated bending can cause fatigue failure in the metal wire, resulting in a sudden decrease in shielding effectiveness.
この発明はかかる場合に有効なシールド材料を提供し、
かつシールド電線を提供するものである。This invention provides a shielding material that is effective in such cases,
The invention also provides shielded electric wires.
く課題を解決するための手段〉
この発明は上記の実情に鑑み鋭意検討の結果、導電性ゴ
ムまたはプラスチックの中の細長い空所の中に金属粉も
しくは液体金属を充填した全体的に細長い材料もしくは
これを織成した材料あるいは偏平な材料およびこれを用
いたシールド電線に関するものである。Means for Solving the Problems In view of the above-mentioned circumstances, the present invention was developed as a result of intensive studies, and the present invention is based on an entirely elongated material or a conductive rubber or plastic in which elongated spaces are filled with metal powder or liquid metal. The present invention relates to a woven or flat material made of the same, and a shielded wire using the same.
く作用〉
この発明のシールド材料は外側の導電性ゴム又はプラス
チックとその中空部に充填された金属粉又は液体金属が
一体となり、遮蔽効果を奏するものである。従って請求
項１のように細長い紐状のものにあっては、これをその
まま電線の外部に巻き付けることも出来るし、織成して
電線の外部に施すことも出来る。また請求項２のように
細長い中空部分が適宜間隔で平行してなり、この中空部
分に金属粉もしくは液体金属を充填したものにあっては
、そのままＸ線表面に巻きつけてシールド層を形成する
ことができる。Effect> The shielding material of the present invention has a shielding effect by integrating the outer conductive rubber or plastic and the metal powder or liquid metal filled in the hollow part thereof. Therefore, in the case of a long and thin string-like material as in claim 1, it can be wrapped around the outside of the electric wire as it is, or it can be woven and applied to the outside of the electric wire. In addition, as in claim 2, in the case where elongated hollow portions are arranged in parallel at appropriate intervals and the hollow portions are filled with metal powder or liquid metal, the shielding layer is formed by wrapping it around the X-ray surface as it is. be able to.
この発明で用いられる導電性ゴム、プラスチック材料と
してはポリエチレン、ポリ塩化ビニル、エチレンプロピ
レン樹脂、エチレンプロピレン系ゴム、ポリアミド樹脂
、ポリウレタン樹脂、アクリル系樹脂、ブチルゴム等の
材料に導電性カーボンブラックや金属粉等を数％〜数ｌ
Ｏ％添加配合したものが使用でき、またこれらの組成物
中には可塑剤その他の配合剤を添加してもよい。The conductive rubber and plastic materials used in this invention include polyethylene, polyvinyl chloride, ethylene propylene resin, ethylene propylene rubber, polyamide resin, polyurethane resin, acrylic resin, butyl rubber, and conductive carbon black and metal powder. etc. from a few% to several l
0% addition blend can be used, and plasticizers and other compounding agents may be added to these compositions.
上記の導電性ゴム、プラスチックの中空部分に充填され
る金属粉としては銅、アルミニウム、鉄等のすべての金
属の粉が適用されるが、ＴｉＯ２゜Ｆｅｚｅ８等の磁性
粉の添加を許すものである。Powders of all metals such as copper, aluminum, and iron can be used as the metal powders filled in the hollow parts of the conductive rubbers and plastics mentioned above, but magnetic powders such as TiO2゜Feze8 can be added. .
この発明で用いられる外部の導電性ゴム、プラスチック
は内部の金属粉や液体金属を保持し、かつそれらが電気
的に連絡し、絶縁されていないので、十分なシールド効
果を奏するものである。The external conductive rubber and plastic used in this invention hold the internal metal powder and liquid metal, and since they are electrically connected and not insulated, they exhibit a sufficient shielding effect.
〈実施例〉
第１図はこの発明の１実施例で導電性ゴム、プラスチッ
ク１の中空部分に金属粉または液体金属２が充填された
単心の細長い紐状のものである。Embodiment FIG. 1 shows an embodiment of the present invention, which is a single-core elongated string in which the hollow part of a conductive rubber or plastic 1 is filled with metal powder or liquid metal 2.
第２図は他の実施例で、導電性ゴム、プラスチック１の
内部に充填される金属粉または液体金属２が一定の長さ
で間歇的に前記の導電性ゴム、プラスチック１により封
止された単心のものである。FIG. 2 shows another example in which metal powder or liquid metal 2 filled inside a conductive rubber or plastic 1 is intermittently sealed with the conductive rubber or plastic 1 over a certain length. It is single-minded.
第３図は更に他の実施例で、共通する導電性ゴム、プラ
スチックエの内部に平行して複数条の中空部分を有し、
この中空部分に金属粉または液体金属２が充填されてい
る場合を示し、その各心とも一定間隔毎に導電性ゴム、
プラスチック１により区切られている。前記した第１図
〜第３図に示すような電磁シールド線を第４図に示すよ
うに絶縁導体３からなる電線の表面に巻きつけてシール
ドＮ４とすることができる。FIG. 3 shows yet another embodiment, which has a plurality of parallel hollow portions inside the common conductive rubber or plastic.
This hollow part is filled with metal powder or liquid metal 2, and each core is filled with conductive rubber at regular intervals.
Separated by plastic 1. The electromagnetic shield wire as shown in FIGS. 1 to 3 described above can be wound around the surface of the electric wire made of the insulated conductor 3 as shown in FIG. 4 to form the shield N4.
なお第１図に示した物は同材料のみまたは他の絶縁糸状
物と織成して電線表面に施しシールド層とすることも可
能である。Note that the material shown in FIG. 1 can also be applied to the surface of an electric wire to form a shield layer using the same material alone or woven with other insulating threads.
前記の第１図もしくは第２図に示したものを製造する手
段は、例えば所定の配合の導電性ゴム。The means for manufacturing what is shown in FIG. 1 or FIG. 2 is, for example, a conductive rubber having a predetermined composition.
プラスチックを押出機のホッパーに提供し、内部に中空
が存在するように押出ながら、クロスヘツドの箇所で金
属の粉もしくは液体を供給し、中空部分に金属の充填し
たもおよび一定間隔毎に金属粉または液体金属を封止し
たものを容易に製造することが出来る。さらに、断面で
幅方向に金属粉または液体金属を封入する為の中空部分
を複数条並列に設けることも可能である。このような構
造のものはケーブル切断時に充填金属の封止端末加工が
不要となる。The plastic is supplied to the hopper of the extruder, and while being extruded so that there is a hollow inside, metal powder or liquid is supplied at the crosshead, and the hollow part is filled with metal and the metal powder or liquid is added at regular intervals. It is possible to easily manufacture sealed liquid metal. Furthermore, it is also possible to provide a plurality of hollow portions in parallel in the width direction of the cross section for enclosing metal powder or liquid metal. With such a structure, there is no need to seal the end of the filling metal when cutting the cable.
また細長くするためには押出し直後に加温状態で所定の
太さや厚さまで引き落とすことにより達成される。Furthermore, elongation can be achieved by drawing down the material to a predetermined thickness or thickness while heating it immediately after extrusion.
また複数条の中空部分を並列に配置したものにあっては
、中空導体に封入充填する金属粉または液体金属は一種
類に限らず、導電性金属と磁性金属を組み合わせること
により効果的な電磁気シールドを得ることができる。In addition, in cases where multiple hollow parts are arranged in parallel, the metal powder or liquid metal that is sealed in the hollow conductor is not limited to one type, and the combination of conductive metal and magnetic metal provides an effective electromagnetic shield. can be obtained.
〈発明の効果〉
この発明によれば、導電性ゴム、プラスチックと金属粉
もしくは液体金属のみからなるシールド材料であるので
、可撓性が極めてよく、かつ金属線で発生するような金
属の疲労による破壊を発生せず、断線のおそれがないの
で、長期にわたり安定した電磁波シールド効果を発揮す
ることができる。<Effects of the Invention> According to the present invention, since the shielding material is made only of conductive rubber, plastic, and metal powder or liquid metal, it has extremely good flexibility and is free from metal fatigue that occurs with metal wires. Since no damage occurs and there is no risk of wire breakage, it is possible to exhibit a stable electromagnetic shielding effect over a long period of time.
第１図〜第３図はこの発明にかかるシールド材料の実施
例で第１図は横断面図、第２図は縦断面図、第３図は斜
視図である。また第４図はこの発明に係るシールド電線
の１例を示す斜視図である。
第１図
第２図
１；金属粉または液体金属
２；導電性ゴム、プラスチック
３；絶縁導体
４；シールド
第３図1 to 3 are examples of the shielding material according to the present invention, in which FIG. 1 is a cross-sectional view, FIG. 2 is a longitudinal sectional view, and FIG. 3 is a perspective view. Further, FIG. 4 is a perspective view showing an example of a shielded wire according to the present invention. Figure 1 Figure 2 Figure 1; Metal powder or liquid metal 2; Conductive rubber, plastic 3; Insulated conductor 4; Shield Figure 3
Claims (1)
ックと、その内部に充填された金属粉又は液体金属とか
らなることを特徴とする可撓性シールド材料 ２）細長い中空部分が適宜間隔で平行してなる請求項１
記載の可撓性シールド材料 ３）全体的に細長い請求項１記載の可撓性シールド材料
が織成されてなる可撓性シールド材料 ４）請求項１、２もしくは３記載の可撓性シールド材料
で絶縁導体の表面をシールドしたことを特徴とするシー
ルド電線[Claims] 1) A flexible shielding material characterized by comprising conductive rubber or plastic having an elongated hollow part and metal powder or liquid metal filled inside the material. 2) A flexible shielding material having an elongated hollow part. Claim 1: parallel to each other at appropriate intervals
3) A flexible shielding material according to claim 1, which is woven with a generally elongated flexible shielding material according to claim 1. 4) A flexible shielding material according to claim 1, 2 or 3. A shielded wire characterized by shielding the surface of an insulated conductor with
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33471888A JPH02181313A (en) | 1988-12-29 | 1988-12-29 | Flexible shield material and shielded electric wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33471888A JPH02181313A (en) | 1988-12-29 | 1988-12-29 | Flexible shield material and shielded electric wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02181313A true JPH02181313A (en) | 1990-07-16 |
Family
ID=18280439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP33471888A Pending JPH02181313A (en) | 1988-12-29 | 1988-12-29 | Flexible shield material and shielded electric wire |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02181313A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04139797A (en) * | 1990-09-29 | 1992-05-13 | Okaya Electric Ind Co Ltd | Noise absorbing bundle line band |
| JPH04139798A (en) * | 1990-09-29 | 1992-05-13 | Okaya Electric Ind Co Ltd | Noise absorbing bundle line band |
| US6903484B1 (en) * | 1999-04-23 | 2005-06-07 | Doris Kuhlmann-Wilsdorf | Fluidic pressure holder for electrical metal fiber and foil brushes and ancillary cables |
| CN103106964A (en) * | 2011-11-10 | 2013-05-15 | 袁玉君 | Elastic cable |
| CN105719726A (en) * | 2016-04-27 | 2016-06-29 | 云南科威液态金属谷研发有限公司 | Conductive soft ooze and preparation method thereof |
| CN116313279A (en) * | 2023-05-19 | 2023-06-23 | 深圳琦富瑞电子有限公司 | Anti-interference communication cable and anti-interference control method |
-
1988
- 1988-12-29 JP JP33471888A patent/JPH02181313A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04139797A (en) * | 1990-09-29 | 1992-05-13 | Okaya Electric Ind Co Ltd | Noise absorbing bundle line band |
| JPH04139798A (en) * | 1990-09-29 | 1992-05-13 | Okaya Electric Ind Co Ltd | Noise absorbing bundle line band |
| US6903484B1 (en) * | 1999-04-23 | 2005-06-07 | Doris Kuhlmann-Wilsdorf | Fluidic pressure holder for electrical metal fiber and foil brushes and ancillary cables |
| CN103106964A (en) * | 2011-11-10 | 2013-05-15 | 袁玉君 | Elastic cable |
| WO2013067727A1 (en) * | 2011-11-10 | 2013-05-16 | Yuan Yujun | Elastic cable |
| CN105719726A (en) * | 2016-04-27 | 2016-06-29 | 云南科威液态金属谷研发有限公司 | Conductive soft ooze and preparation method thereof |
| CN105719726B (en) * | 2016-04-27 | 2018-03-09 | 云南科威液态金属谷研发有限公司 | A kind of conductive ooze and preparation method thereof |
| CN116313279A (en) * | 2023-05-19 | 2023-06-23 | 深圳琦富瑞电子有限公司 | Anti-interference communication cable and anti-interference control method |
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