JPH01176604A - Flexible shielded wire - Google Patents
Flexible shielded wireInfo
- Publication number
- JPH01176604A JPH01176604A JP33416187A JP33416187A JPH01176604A JP H01176604 A JPH01176604 A JP H01176604A JP 33416187 A JP33416187 A JP 33416187A JP 33416187 A JP33416187 A JP 33416187A JP H01176604 A JPH01176604 A JP H01176604A
- Authority
- JP
- Japan
- Prior art keywords
- wire
- covered
- wires
- electromagnetic shielding
- core 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 claims abstract description 43
- 239000000835 fiber Substances 0.000 claims abstract description 20
- 239000012212 insulator Substances 0.000 claims abstract description 6
- 239000002184 metal Substances 0.000 claims description 22
- 229910052751 metal Inorganic materials 0.000 claims description 22
- 238000009941 weaving Methods 0.000 claims 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 4
- 229910052802 copper Inorganic materials 0.000 abstract description 3
- 239000010949 copper Substances 0.000 abstract description 3
- 125000006850 spacer group Chemical group 0.000 abstract description 3
- 244000043261 Hevea brasiliensis Species 0.000 abstract description 2
- 229920003052 natural elastomer Polymers 0.000 abstract description 2
- 229920001194 natural rubber Polymers 0.000 abstract description 2
- 229920003051 synthetic elastomer Polymers 0.000 abstract description 2
- 229920003002 synthetic resin Polymers 0.000 abstract description 2
- 239000000057 synthetic resin Substances 0.000 abstract description 2
- 239000005061 synthetic rubber Substances 0.000 abstract description 2
- 230000008602 contraction Effects 0.000 abstract 2
- 238000005452 bending Methods 0.000 description 13
- 238000012360 testing method Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 238000009940 knitting Methods 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 2
- 229910001111 Fine metal Inorganic materials 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
Landscapes
- Insulated Conductors (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、電磁シールドを施した電線の改良に係わり、
更に詳しくは頻繁に屈曲させて使用する電源用又は信号
用の柔軟性を有するシールド電線に関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to the improvement of electromagnetic shielded electric wires,
More specifically, the present invention relates to a flexible shielded wire for power supply or signal wires that is frequently bent and used.
従来のシールド電線は、絶縁体で被覆した心線の外周を
金属細線にて綾織り形成した中空紐状の電磁シールド材
で覆い、更にその外周を外被材で被覆した構造のもので
、該電線を屈曲させた場合、前記緯線と経線自体は殆ど
伸縮せず、緯線と経線が互いに逆回りで心線の周囲に密
接させて巻回したその綾織り構造のずれが生じるだけで
あるので、屈曲はするものの剛性が比較的太き（、しか
も曲率を大きくなして鋭角に屈曲するには多大な力を要
し、また頻繁に屈伸させた場合には緯線と経線との金属
細線同士の擦れや金属細線自体の金属疲労によって比較
的容易に断線するといった問題があった。また、前記電
磁シールド材として導電性繊維のみで綾織り形成するこ
とも考慮されるが、現在のところ単糸の表面に銅及びニ
ッケル等をめっき又は蒸着して形成した導電性繊維の単
位長さ当たりの抵抗値は数十Ω／ｍあって、この抵抗値
を下げない限り該導電性繊維のみでは特定波長以下の短
波長の電磁波の確実な電磁シールドは望めない。Conventional shielded wires have a structure in which the outer periphery of a core wire coated with an insulator is covered with a hollow string-like electromagnetic shielding material made of a twill weave of thin metal wires, and the outer periphery is further covered with a jacket material. When an electric wire is bent, the latitude lines and meridian lines themselves hardly expand or contract, and only the twill structure, in which the latitude lines and longitude lines are wound in opposite directions and closely wrapped around the core wire, shifts. Although it can be bent, its rigidity is relatively thick (furthermore, it requires a great deal of force to bend at an acute angle with a large curvature, and if it is bent and stretched frequently, the thin metal wires at the latitude and longitude lines will rub against each other). There have been problems in that wires break relatively easily due to metal fatigue of the thin metal wire itself.Furthermore, forming a twill weave using only conductive fibers as the electromagnetic shielding material is also being considered, but currently the surface of the single yarn is The resistance value per unit length of conductive fibers formed by plating or vapor-depositing copper, nickel, etc. is several tens of Ω/m, and unless this resistance value is lowered, the conductive fibers alone will not be able to withstand wavelengths below a certain wavelength. Reliable electromagnetic shielding for short wavelength electromagnetic waves cannot be expected.
本発明が前述の状況に鑑み、解決しようとするところは
、屈曲が容易でしかも曲率を大きくなして鋭角に屈曲で
きるとともに、頻繁な屈伸に対しても断線し難く耐久性
のある柔軟性シールド電線を提供する点にある。In view of the above-mentioned situation, the present invention aims to solve a flexible shielded electric wire that is easy to bend, can be bent at an acute angle with a large curvature, and is durable and difficult to break even with frequent bending and stretching. The point is to provide the following.
本発明は、前述の問題解決の為に、絶縁体で被覆した心
線を内部に配し、その外周を金属細線と導電性繊維にて
編んだ中空紐状の電磁シールド材で被覆してなる柔軟性
シールド電線を構成した。In order to solve the above-mentioned problem, the present invention has a core wire covered with an insulator arranged inside, and the outer periphery of the core wire is covered with a hollow string-like electromagnetic shielding material woven with thin metal wire and conductive fiber. Made of flexible shielded wire.
以上の如き内容からなる本発明の柔軟性シールド電線は
、金属細線と該金属細線よりも伸縮性の大きな導電性繊
維とで中空紐状に編んだことにより、電線の屈曲に対し
て該導電性繊維が金属細線間のスペーサーとして作用す
るとともに、金属細線と導電性繊維は近距離で接触して
いるので、シールド材全体の抵抗値は略金属細線の抵抗
値になり、内部の心線の電磁シールド作用を有するもの
である。The flexible shielded electric wire of the present invention having the above-mentioned contents is made of a hollow string-like structure made of thin metal wires and conductive fibers that are more stretchable than the thin metal wires. The fibers act as spacers between the thin metal wires, and the thin metal wires and conductive fibers are in close contact, so the resistance value of the entire shielding material is approximately the resistance value of the thin metal wires, and the electromagnetic resistance of the internal core wires. It has a shielding effect.
次に添付図面に示した実施例に基づき更に本発明の詳細
な説明する。Next, the present invention will be further described in detail based on embodiments shown in the accompanying drawings.
第１図及び第２図は本発明の代表的実施例を示し、図中
Ａは電線、１は心線、２は内装材、３は電磁シールド材
、４は外被材をそれぞれ示している。1 and 2 show typical embodiments of the present invention, in which A indicates an electric wire, 1 indicates a core wire, 2 indicates an interior material, 3 indicates an electromagnetic shielding material, and 4 indicates an outer covering material, respectively. .
電線Ａの内部に配する心線１は、単又は複数の銅線５を
絶縁性被覆材６で覆ったもので、電源用又は信号用とし
て利用するものである。そして、該心線ｌを単又は複数
本束ねた状態で、絶縁性内装材２にて断面略円形にモー
ルド成形し、その外周を導体細線で中空紐状に形成した
電磁シールド材３で被覆し、更に外被材４で被覆した構
造を有し、前記被覆材６、内装材２及び外被材４は、柔
軟性を有する合成ゴム及び天然ゴム又は合成樹脂等の絶
縁体で形成している。The core wire 1 arranged inside the electric wire A is one or more copper wires 5 covered with an insulating covering material 6, and is used for power supply or signal purposes. Then, one or more of the core wires 1 are bundled and molded with an insulating interior material 2 to have a substantially circular cross section, and the outer periphery is covered with an electromagnetic shielding material 3 made of a thin conductor wire formed into a hollow string shape. , further has a structure covered with an outer covering material 4, and the covering material 6, interior material 2, and outer covering material 4 are formed of an insulator such as flexible synthetic rubber, natural rubber, or synthetic resin. .
前記電磁シールド材３は、第１図に示す如く緯線７と経
線８とを綾織り形成したもので、緯線７としてリボン状
に複数本平行配設した金属細線９を用い、経線８として
リボン状に複数本平行配設したリボン状の導電性繊維１
０を用いてそれぞれ逆回りに織って中空紐状に形成した
ものである。The electromagnetic shielding material 3 is formed by twilling latitude lines 7 and longitude lines 8 as shown in FIG. Ribbon-shaped conductive fibers 1 arranged in parallel in multiple
0, each weaved in the opposite direction to form a hollow string shape.
また、前記電磁シールド材３の他の実施例として、第３
図に示す如く、緯線７及び経線８のそれぞれを金属細線
７と導電性繊維８とを交互に平行配設してリボン状とな
し、中空紐状に綾織りしたものである。Further, as another example of the electromagnetic shielding material 3, a third
As shown in the figure, thin metal wires 7 and conductive fibers 8 are alternately arranged parallel to each other to form a ribbon shape, and the latitude lines 7 and meridian lines 8 are twilled into a hollow string shape.
尚、前記電磁シールド材３は、前記実施例では緯線７と
経線８とで綾織り形成したが、金属細線９と導電性繊維
ｌＯとでメリヤス編み等して、中空紐状に連続させたも
のも採用し得る。In addition, the electromagnetic shielding material 3 was formed in a twill weave by the latitude lines 7 and meridian lines 8 in the above embodiment, but it could also be formed by stockinette knitting or the like using thin metal wires 9 and conductive fibers 1O, which were continuous in the shape of a hollow string. can also be adopted.
ここで、前記金属細線９と導電性繊維１０を編んで形成
した電磁シールド材３を内装した本発明の電線Ａと、従
来の金属細線のみを編んで形成した電磁シールド材を内
装した電線との比較実験を以下に示す。尚、前記両型線
は、電磁シールド材３以外は全て同一となしたものであ
る。Here, the electric wire A of the present invention is equipped with an electromagnetic shielding material 3 formed by knitting the metal thin wire 9 and conductive fibers 10, and the electric wire is internally equipped with an electromagnetic shielding material formed by knitting only the conventional thin metal wire. A comparative experiment is shown below. Note that both types of wires are the same except for the electromagnetic shielding material 3.
第４図にその実験の概略図を示してあり、電線Ａの基端
部１１を固定し、それより先端側の側面に丸棒１２を当
接し、更に先端部１３をテンションゲージ１４に枢着固
定し、該テンションゲージ１４を引いて前記先端部１３
を前記丸棒１２を中心として折曲させて、基端部１１に
対して９０°又は１８０°になった状態の負荷を読み取
る。ここで、前記丸棒１２からテンションゲージ１４の
枢着固定点までの距離を５ｃｍに設定し、室温（２３℃
）下で、本発明の電線（表中Ａで示す）と従来の電線（
表中Ｂで示ず）をそれぞれ５本ずつ試験した。A schematic diagram of the experiment is shown in FIG. 4, in which the base end 11 of the electric wire A is fixed, the round bar 12 is brought into contact with the side surface on the distal end side, and the distal end 13 is pivoted to the tension gauge 14. the tip part 13 by pulling the tension gauge 14.
is bent around the round rod 12, and the load is read when the rod is bent at 90° or 180° with respect to the base end 11. Here, the distance from the round bar 12 to the pivot fixing point of the tension gauge 14 is set to 5 cm, and
), the electric wire of the present invention (indicated by A in the table) and the conventional electric wire (
(not indicated by B in the table) were tested, five each.
柔軟性試験表
以上の結果、本発明の電線Ａは従来の電線Ｂに比べて、
９０°の屈曲角度に対して平均５７％の負荷で曲がり、
また１８０″の屈曲角度に対して平均５６％の負荷で曲
がることがわかった。As a result of the above flexibility test table, the electric wire A of the present invention has the following characteristics compared to the conventional electric wire B:
Bending at an average load of 57% for a 90° bending angle,
It was also found that the bending angle was 180'' with an average load of 56%.
第５図にその実験の概略図を示してあり、面を垂直に配
した回転板１５の回転中心点０を挟んで両側に円柱突起
１６．１６を固定し、該突起１６．１６間に直線状の電
線Ａを配し、その先端部１３を前記回転板１５の固定部
１７に取付けるとともに、下方の基端部１１を水平に固
定した振り止め部材１８の円孔１９に遊１ホし、更にそ
の下方に重り２０を固定し、そして前記回転板１５を回
転中心点Ｏの回りに一定角度回転させて前記突起１６と
固定部１７で屈曲し、更に逆方向に一定角度回転させて
逆に屈曲し、この回転振動を繰り返して、前記電磁シー
ルド材３が断線するまでの屈曲回数を計数した。尚、前
記電磁シールド材３には許容電流に等しい１０Ａ（アン
ペア）の電流を流し、該電流値の急激な変化をモニター
して断線時点を確認し、その屈曲回数を本発明の電線（
表中Ａ）と従来の電線（表中Ｂ）とをそれぞれ３本ずつ
試験した。実験は、常温下で行い、左右の屈曲角度を１
８０°に設定し、−分間に４０回の速さで屈曲させ、更
に前記重り２０の重量を５００ｇとした。A schematic diagram of the experiment is shown in FIG. 5, in which cylindrical projections 16.16 are fixed on both sides of the rotation center point 0 of a rotary plate 15 whose surface is arranged perpendicularly, and a straight line is drawn between the projections 16.16. A shaped electric wire A is arranged, its tip 13 is attached to the fixed part 17 of the rotary plate 15, and the lower base end 11 is loosely inserted into the circular hole 19 of the horizontally fixed steadying member 18, Further, a weight 20 is fixed below it, and the rotary plate 15 is rotated by a certain angle around the rotation center point O to bend at the protrusion 16 and the fixed part 17, and further rotated by a certain angle in the opposite direction to reverse the rotation. The electromagnetic shielding material 3 was bent and the rotational vibration was repeated, and the number of bending times until the electromagnetic shielding material 3 was disconnected was counted. Incidentally, a current of 10 A (ampere), which is equal to the allowable current, is passed through the electromagnetic shielding material 3, a sudden change in the current value is monitored to confirm the point of disconnection, and the number of bends is calculated using the electric wire of the present invention (
Three wires each of A) in the table and a conventional electric wire (B in the table) were tested. The experiment was conducted at room temperature, with the left and right bending angles set at 1.
The bending angle was set at 80° and the bending was performed at a rate of 40 times per minute, and the weight of the weight 20 was set to 500 g.
屈伸耐久性試験表
以上の結果、本発明の電線Ａは従来の電線Ｂと比較して
、電磁シールド材３の断線するまでの回数が平均４２％
も延びたことがわかった。As a result of the above bending/stretching durability test table, the number of times until the electromagnetic shielding material 3 breaks is 42% on average for the electric wire A of the present invention compared to the conventional electric wire B.
It was also found that it has been extended.
以上にしてなる本発明の柔軟性シールド電線によれば、
絶縁体で被覆した心線を内部に配し、その外周を金属細
線と導電性繊維にて編んだ中空紐状の電磁シールド材で
被覆してなるので、金属細線間に該金属細線よりも伸縮
性が大きく、柔らかい導電性繊維が介在して該導電性繊
維が金属細線間のスペーサーとして作用するので、容易
に屈曲することができ、前記比較試験により明らかな如
〈従来のものより柔軟性が飛躍的に向上し、また屈伸に
対する耐久性も前記比較試験により明らかな如〈従来の
ものより屈曲に対する耐久性が有窓に向上し、また比較
的電気抵抗値の大きな導電性繊維を用いているにもかか
わらず、金属細線と導電性繊維は近距離で接触している
ので、シールド材全体の抵抗値は略金属細線の抵抗値に
なり、内部の心線の電磁シールド効果を損なうことがな
いものである。According to the flexible shielded wire of the present invention as described above,
A core wire covered with an insulator is placed inside, and its outer periphery is covered with a hollow string-like electromagnetic shielding material woven from thin metal wires and conductive fibers, so that the thin metal wires expand and contract more than the thin metal wires. Since the conductive fibers, which have high elasticity and softness, act as spacers between the thin metal wires, they can be easily bent, and as is clear from the above comparative test, they are more flexible than the conventional ones. The durability against bending and stretching has been dramatically improved, and the durability against bending and stretching has been clearly improved from the above comparative test. Nevertheless, since the thin metal wire and the conductive fiber are in close contact, the resistance value of the entire shielding material is approximately the same as that of the thin metal wire, and the electromagnetic shielding effect of the internal core wire is not impaired. It is something.
第１図は本発明の電線の端部を切り欠いて示した部分側
面図、第２図は第１図の断面図、第３図は電磁シールド
材の他の実施例を示す部分側面図、第４図は電線の柔軟
性試験装置を示す説明用概略図、第５図は電線の屈伸耐
久性試験装置を示す説明用概略図である。
Ａ：電線、
１：心線、２：内装材、３：電磁シールド材、４：外被
材、５：銅線、６：被覆材、７：緯線、８：経線、９：
金属細線、１０：き、ダミ性繊維、１１：基端部、１２
：丸棒、１３：先端部、１４：テンションゲージ、１５
：Ｕｉ、！：坂、１６：突起、１７；固定部、１８：振
り止め部材、１９：円孔、２０：重り。
特許出願人 堀川電線株式会社
第４図
第６図
第１図
第２図FIG. 1 is a partial side view showing the end of the electric wire of the present invention cut away, FIG. 2 is a sectional view of FIG. 1, and FIG. 3 is a partial side view showing another embodiment of the electromagnetic shielding material. FIG. 4 is an explanatory schematic diagram showing an electric wire flexibility testing device, and FIG. 5 is an explanatory schematic diagram showing an electric wire bending/stretching durability testing device. A: Electric wire, 1: Core wire, 2: Interior material, 3: Electromagnetic shielding material, 4: Outer covering material, 5: Copper wire, 6: Covering material, 7: Latitude line, 8: Longitude line, 9:
Fine metal wire, 10: Dummy fiber, 11: Base end, 12
: Round bar, 13: Tip, 14: Tension gauge, 15
:Ui,! : Slope, 16: Projection, 17: Fixed part, 18: Swing stop member, 19: Circular hole, 20: Weight. Patent applicant Horikawa Electric Cable Co., Ltd. Figure 4 Figure 6 Figure 1 Figure 2
Claims (1)
属細線と導電性繊維にて編んだ中空紐状の電磁シールド
材で被覆したことを特徴とする柔軟性シールド電線。 ２）前記電磁シールド材として、緯線となした金属細線
と経線となした導電性繊維にて綾織り形成してなる電磁
シールド材を用いた特許請求の範囲第１項記載の柔軟性
シールド電線。[Scope of Claims] 1) A flexible device characterized by having a core wire covered with an insulator arranged inside, and the outer periphery of the core wire covered with a hollow string-like electromagnetic shielding material knitted with thin metal wires and conductive fibers. shielded wire. 2) The flexible shielded electric wire according to claim 1, wherein the electromagnetic shielding material is an electromagnetic shielding material formed by twill weaving of thin metal wires as latitudes and conductive fibers as meridians.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33416187A JPH01176604A (en) | 1987-12-29 | 1987-12-29 | Flexible shielded wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33416187A JPH01176604A (en) | 1987-12-29 | 1987-12-29 | Flexible shielded wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01176604A true JPH01176604A (en) | 1989-07-13 |
Family
ID=18274222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP33416187A Pending JPH01176604A (en) | 1987-12-29 | 1987-12-29 | Flexible shielded wire |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01176604A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH056542U (en) * | 1991-07-11 | 1993-01-29 | 吉田工業株式会社 | Metal wire woven tape |
| US5249131A (en) * | 1989-10-23 | 1993-09-28 | Mitsubishi Denki Kabushiki Kaisha | Apparatus for controlling the loading of workpieces onto a pallet |
| JP2012174336A (en) * | 2011-02-17 | 2012-09-10 | Yazaki Corp | Shielded cable |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6151611B2 (en) * | 1980-07-15 | 1986-11-10 | Nippon Steel Corp |
-
1987
- 1987-12-29 JP JP33416187A patent/JPH01176604A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6151611B2 (en) * | 1980-07-15 | 1986-11-10 | Nippon Steel Corp |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5249131A (en) * | 1989-10-23 | 1993-09-28 | Mitsubishi Denki Kabushiki Kaisha | Apparatus for controlling the loading of workpieces onto a pallet |
| JPH056542U (en) * | 1991-07-11 | 1993-01-29 | 吉田工業株式会社 | Metal wire woven tape |
| JP2012174336A (en) * | 2011-02-17 | 2012-09-10 | Yazaki Corp | Shielded cable |
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