JPH01143103A - Flexible electric conductor - Google Patents
Flexible electric conductorInfo
- Publication number
- JPH01143103A JPH01143103A JP30118187A JP30118187A JPH01143103A JP H01143103 A JPH01143103 A JP H01143103A JP 30118187 A JP30118187 A JP 30118187A JP 30118187 A JP30118187 A JP 30118187A JP H01143103 A JPH01143103 A JP H01143103A
- Authority
- JP
- Japan
- Prior art keywords
- flexible
- flexible conductor
- conductor
- particles
- synthetic resin
- 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
- 239000004020 conductor Substances 0.000 title claims abstract description 33
- 239000000463 material Substances 0.000 claims abstract description 35
- 239000002245 particle Substances 0.000 claims abstract description 10
- 229920003002 synthetic resin Polymers 0.000 claims abstract description 9
- 239000000057 synthetic resin Substances 0.000 claims abstract description 9
- 239000000126 substance Substances 0.000 claims description 4
- 239000012212 insulator Substances 0.000 abstract description 5
- 239000000919 ceramic Substances 0.000 abstract description 4
- 239000000945 filler Substances 0.000 abstract description 4
- BTGZYWWSOPEHMM-UHFFFAOYSA-N [O].[Cu].[Y].[Ba] Chemical compound [O].[Cu].[Y].[Ba] BTGZYWWSOPEHMM-UHFFFAOYSA-N 0.000 abstract description 3
- 238000005452 bending Methods 0.000 abstract description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 239000000843 powder Substances 0.000 description 2
- 244000025254 Cannabis sativa Species 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 239000004760 aramid Substances 0.000 description 1
- 229920003235 aromatic polyamide Polymers 0.000 description 1
- -1 carbon powder Chemical compound 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229920003223 poly(pyromellitimide-1,4-diphenyl ether) Polymers 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/002—Very heavy-current switches
- H01H33/004—Very heavy-current switches making use of superconducting contacts
Abstract
Description
【発明の詳細な説明】
発明の目的
（産業上の利用分野）
この発明は可撓性を備えた導電体に係り、詳しくは開閉
器等の可動電極等に接続される導電体に関するものであ
る。[Detailed Description of the Invention] Purpose of the Invention (Industrial Application Field) The present invention relates to a flexible electrical conductor, and specifically relates to an electrical conductor connected to a movable electrode of a switch or the like. .
（従来技術）
従来、可撓性を備えた導電体として、銀、ニッケル、銅
等の金属粉やカーボン粉等の充填材を混入させた導電性
のゴム、あるいは、銅の薄板を複数枚重ねた導電性の板
材が提案されている。(Prior art) Conventionally, flexible conductors have been made of conductive rubber mixed with metal powders such as silver, nickel, copper, or fillers such as carbon powder, or by stacking multiple thin sheets of copper. Electrically conductive plate materials have been proposed.
（発明が解決しようとする問題点）
ところが、前記提案されたＦｓ導電性ゴムにおいては、
導電率が低いといった問題があり、開閉器等の可動電極
簀に接続される導体として用いられることはなかった。(Problems to be solved by the invention) However, in the proposed Fs conductive rubber,
Due to the problem of low conductivity, it has not been used as a conductor connected to movable electrode cages such as switches.
そして、開閉器等の可動電極等に接続される導体として
は、銅の薄板を複数枚重ねた導電性の板材が多く用いら
れている。しかし、前記機材においては、繰返し折り曲
げされた場合に金属疲労によって板材が切断される虞が
あるといった問題があった。As a conductor connected to a movable electrode of a switch or the like, a conductive plate material made of a plurality of stacked copper thin plates is often used. However, the above-mentioned equipment has a problem in that when it is repeatedly bent, the plate material may be cut due to metal fatigue.
この発明の目的は、電気抵抗が少なく、又、繰返し折り
曲げされても強度が低下することのない可撓性を備えた
導電体を提供することにある。An object of the present invention is to provide a flexible conductor that has low electrical resistance and does not lose strength even when repeatedly bent.
発明の構成
（問題点を解決するための手段）
この発明は前記問題点を解消するためになされたもので
あって、可撓性を備えた合成樹脂に超電導物質を混入し
たことをその要旨とするものである。Structure of the Invention (Means for Solving the Problems) This invention was made to solve the above problems, and its gist is that a superconducting substance is mixed into a flexible synthetic resin. It is something to do.
（作用）
前記した構成により、超電導物質が混入された合成樹脂
はその抵抗が署しく低下し、電気を良好に通すことがで
き、さらに、合成樹脂は繰返し折り曲げされても強度が
低下することはない。(Function) With the above-described structure, the resistance of the synthetic resin mixed with the superconducting substance is significantly reduced, allowing electricity to pass through it well, and furthermore, the strength of the synthetic resin does not decrease even if it is repeatedly bent. do not have.
（実施例）
以下、この発明を開閉器の可撓導体に具体化した一実施
例を図面に従って説明する。(Example) Hereinafter, an example in which the present invention is embodied in a flexible conductor of a switch will be described with reference to the drawings.
第１図中、開閉器ケース１の両側には、それぞれ各相ご
とのブッシング２．３がｎ通固定され、その各ブッシン
グ２．３の内端には、それぞれ対向する一対の回り止め
突起２ａ、３ａが突設されている。前記各ブッシング２
．３内には導電棒４゜５が挿通固定され、同導電棒４，
５の内端にはそれぞれネジ部４ａ、５ａが形成され、又
、導電棒４．５の外端にはそれぞれ外部リード線６，７
が接続されている。In FIG. 1, n bushings 2.3 for each phase are fixed on both sides of the switch case 1, and at the inner end of each bushing 2.3, a pair of opposing detent projections 2a are provided. , 3a are provided protrudingly. Each of the bushings 2
．． A conductive rod 4゜5 is inserted and fixed into the inside of the conductive rod 4,
Threaded portions 4a, 5a are formed at the inner ends of the conductive rods 4.5, respectively, and external lead wires 6, 7 are formed at the outer ends of the conductive rods 4.5, respectively.
is connected.
前記一方のブッシング２の内端において前記回り止め突
起２ａ間に挟持されるように配置された端子金具８は、
その基端部が導電棒４のネジ部４ａに対してナツト９に
て締着されている。前記端子金具８は、極低温にて超電
導物質となるイツトリウム−バリウム−銅−酸素からな
るセラミックス（常温では１０゛４Ωｃｍ程度の抵抗値
を示す）にて形成されているが、他の超電導物質を用い
てもよく、望ましくは常温超電導物質を用いて形成する
。A terminal fitting 8 is arranged at the inner end of the one bushing 2 so as to be sandwiched between the anti-rotation protrusions 2a.
Its base end portion is fastened to the threaded portion 4a of the conductive rod 4 with a nut 9. The terminal fitting 8 is made of ceramics made of yttrium-barium-copper-oxygen which becomes a superconducting material at extremely low temperatures (it exhibits a resistance value of about 10.4 Ωcm at room temperature), but it may not be made of other superconducting materials. It is preferable to use a room-temperature superconducting material.
さらに、前記端子金具８は以下に説明する超電導物質の
備えている性質を利用し、その断面積が所定の値となる
ように設定されている。即ら、第２図に示すように前記
端子金具８を構成する超電導物質に、所定の電流密度以
上の電流（臨界電流値Ｐ１）が流れると、線Ｌ１で示す
ように超電導物質の超電導状態が崩れてその電気抵抗が
急激に上界する。そして、−旦超電導状態が崩れて電気
抵抗が上昇すると、電流が限流されるとともに、電流に
よって超電導物質の温度が上昇し、さらにその電気抵抗
が上昇する。Further, the terminal fitting 8 is set to have a cross-sectional area of a predetermined value by utilizing the properties of the superconducting material described below. That is, as shown in FIG. 2, when a current of a predetermined current density or higher (critical current value P1) flows through the superconducting material constituting the terminal fitting 8, the superconducting state of the superconducting material changes as shown by the line L1. It collapses and its electrical resistance suddenly rises. Then, once the superconducting state collapses and the electrical resistance increases, the current is limited and the temperature of the superconducting material increases due to the current, further increasing its electrical resistance.
１１η記限流された電流値が所定の値より低下し、さら
に、超電導物質の温度が速やかに低下した場合には、再
び超電導物質は超電導状態となる。尚、この超電導物質
の特性は、その材料、温度条件等によって適宜変更する
ことができる。11η When the limited current value decreases below a predetermined value and the temperature of the superconducting material quickly decreases, the superconducting material becomes superconducting again. Note that the characteristics of this superconducting material can be changed as appropriate depending on the material, temperature conditions, etc.
そこで、前記端子金具８の断面積は、この開閉器が安全
に電気回路を開くことのできる定格電流値以上の電流に
よって、その電流密度が前記臨界電流値Ｐ１を越えるよ
うに設定されている。Therefore, the cross-sectional area of the terminal fitting 8 is set so that the current density exceeds the critical current value P1 when the current exceeds the rated current value at which the switch can safely open an electric circuit.
さらに、前記端子金具８の先端部下面には、固定電極１
０が接続固定されている。前記固定電極１０を包囲する
ように前記端子金具８の先端部には、消弧室１１が取着
されている。Furthermore, a fixed electrode 1 is provided on the lower surface of the tip of the terminal fitting 8.
0 is fixed connection. An arc extinguishing chamber 11 is attached to the tip of the terminal fitting 8 so as to surround the fixed electrode 10.
他方のブッシング３の内端において前記回り止め突起３
ａ間に挟持されるように配置された可撓導体１２は、そ
の一端が導電棒５のネジ部５ａに対してナツト１３にて
締着されている。前記可撓導体１２は、第３図に示すよ
うに可撓性を備えた合成樹脂としてのゴム材に前記イツ
トリウム−バリウム−銅−酸素からなるセラミックス等
の超電導物質の粒子１２ａを充１眞材として混入するこ
Ｊにより形成されている。従って、前記可撓導体１２は
従来の金属粉を充填材として混入した導電＋−）のゴム
に較べ、優れた導電性を示す。At the inner end of the other bushing 3, the rotation prevention protrusion 3
One end of the flexible conductor 12 arranged to be sandwiched between the conductive rods 5 and 5 is fastened to the threaded portion 5a of the conductive rod 5 with a nut 13. As shown in FIG. 3, the flexible conductor 12 is made of a flexible synthetic resin rubber material filled with particles 12a of superconducting material such as ceramics made of yttrium-barium-copper-oxygen. It is formed by mixing as J. Therefore, the flexible conductor 12 exhibits superior conductivity compared to conventional conductive rubber mixed with metal powder as a filler.
前記可撓導体１２の移動範囲を規制するためのガイド板
１４は、前記ブッシング３の内端と可撓導体１２との間
において回り止め突起３ａ間に草端が挟持され、その先
端部は開閉器ケース１に対して所定間隔を確保するよう
にケース１の形状に沿って折曲形成されている。The guide plate 14 for regulating the movement range of the flexible conductor 12 has its grass end held between the detent protrusions 3a between the inner end of the bushing 3 and the flexible conductor 12, and its tip can be opened and closed. It is bent along the shape of the case 1 so as to maintain a predetermined distance from the case 1.
前記開閉器ケース１の中央上端部に回動可能に支持され
た回動軸１６には、前記各相の固定電極１０と対応する
位置において支持金具１７が固着されている。前記支持
金具１７の下面には、支ト”ｊ碍子１８の上端部がボル
トによって固定されている。前記支持碍子１８の下面に
は、全体を略り字状に形成した可動電極としての可動接
触刃１９の上端がボルトによって固定されている。前記
可動接触刃１９は、前記回動軸１６を回動することによ
って、それぞれ対応する固定電Ｎｉ１０に対して挟入離
脱可能に形成されている。A support fitting 17 is fixed to a rotation shaft 16 rotatably supported at the upper central end of the switch case 1 at a position corresponding to the fixed electrode 10 of each phase. An upper end portion of a support insulator 18 is fixed to the lower surface of the support fitting 17 with a bolt.A movable contact as a movable electrode is formed on the lower surface of the support insulator 18 as a whole in an oval shape. The upper end of the blade 19 is fixed by a bolt.The movable contact blade 19 is formed so that it can be inserted into and removed from the corresponding fixed electric Ni 10 by rotating the rotation shaft 16.
前記可動接触刃１９とともに前記支持碍子１８にボルト
着された１字状の端子金具２０は、その先端部に前記可
撓導体１２の他端がボルト・ナツトにて締付固定されて
いる。そして、前記両導電棒４，５間は、端子金具８．
２０．固定電極１０゜可′ｐＡ’１体１２及び可動接触
刃１９によって電気的に接続されている。尚、端子金具
２０と可撓導体１２との間には、可撓々休１２の移動範
囲を規制するためのガイド板２１が挟持されている。A single-shaped terminal fitting 20 is bolted to the support insulator 18 together with the movable contact blade 19, and the other end of the flexible conductor 12 is fastened to the distal end thereof with a bolt and nut. A terminal fitting 8. is connected between both the conductive bars 4 and 5.
20. The fixed electrode 10° is electrically connected to the movable contact blade 19 by the body 12 and the movable contact blade 19. Note that a guide plate 21 is sandwiched between the terminal fitting 20 and the flexible conductor 12 for regulating the movement range of the flexible conductor 12.
上記のように構成された開閉器の可ｔ３１ｓ体の作用に
ついて説明する。The operation of the flexible t31s body of the switch configured as described above will be explained.
第１図に実線で示す投入状態における可撓導体１２は、
回動軸１６が矢印方向に回動されると、同図に二点鎖線
で示す状態となる。このとき、可撓導体１２はガイド板
１４．２１によってその屈曲が案内され、支持碍子１８
側及びケース１側に対して所定距離以上接近しないよう
にその撓みが規制される。又、前記可撓導体１２は、超
電導物質の粒子１２ａによって良好なう〃電性を示すと
ともに、ゴム材から構成されているため、従来の銅板か
らなる可撓導体とは異なり、繰返し折曲げされても切断
したり強度が低下することはない。The flexible conductor 12 in the closed state shown by the solid line in FIG.
When the rotation shaft 16 is rotated in the direction of the arrow, the state shown by the two-dot chain line in the figure is reached. At this time, the flexible conductor 12 is guided in its bending by the guide plate 14.21, and the supporting insulator 18
Its deflection is regulated so that it does not approach the case 1 side more than a predetermined distance. Further, the flexible conductor 12 exhibits good static properties due to the particles 12a of the superconducting material, and since it is made of a rubber material, unlike a conventional flexible conductor made of a copper plate, it cannot be bent repeatedly. It will not break or lose its strength.
さらに、前記端子金具８は超電）、り物質にて形成され
ているため、配電線に短絡故障等が発生して開閉器の定
格電流値以上の電流が流れても、ｌｆ！ｉ電導物質が電
気抵抗体となり電流を限流するため、従来の過電流ロッ
クを行なうことなく、常時この開閉器を安全に開放する
ことができる。Furthermore, since the terminal fitting 8 is made of superelectric material, even if a short circuit failure occurs in the distribution line and a current exceeding the rated current value of the switch flows, the lf! Since the conductive material acts as an electrical resistor and limits the current, the switch can be opened safely at all times without the need for the conventional overcurrent lock.
尚、前記端子金具８及び粒子１２ａとして極低温にて超
電導物質となるセラミックスを用いた場合には、同端子
金具８及び可撓導体１２ａを冷却装置あるいは冷媒（図
示しない）によって冷ｚＪＩするしのとする。In addition, when the terminal fitting 8 and the particles 12a are made of ceramic that becomes a superconducting material at extremely low temperatures, the terminal fitting 8 and the flexible conductor 12a may be cooled using a cooling device or a refrigerant (not shown). shall be.
前記実施例では、可撓導体１２を形成するゴム材に超電
導物質の粒子１２ａを混入したが、前記粒子１２ａの代
りに超電導物質の繊維状物をゴム材に混入して実施して
もよい。この場合、粒子１２ａを充填材とするよりもさ
らに良好な通電状態を得ることができる。In the embodiment described above, the particles 12a of superconducting material were mixed into the rubber material forming the flexible conductor 12, but instead of the particles 12a, fibrous material of superconducting material may be mixed into the rubber material. In this case, a better current conduction state can be obtained than when the particles 12a are used as a filler.
又、合成樹脂としてフッ素、アラミド、カプトン等の樹
脂材を用いて実施してもよい。この場合、低温に対する
可撓性維持が良好なものとなる。Alternatively, resin materials such as fluorine, aramid, and kapton may be used as the synthetic resin. In this case, flexibility can be maintained well at low temperatures.
又、この発明は前記実施例に限定されるものではなく、
前記した以外の超電導物質をゴム材等の合成樹脂に混入
して実施する等、この発明の趣旨から逸脱しない範囲で
任意に変更することも可能である。Furthermore, this invention is not limited to the above embodiments,
It is also possible to make arbitrary changes without departing from the spirit of the invention, such as mixing superconducting substances other than those described above into synthetic resins such as rubber materials.
発明の効果
以上詳述したように、この発明の導電体においては電気
抵抗が少なく、又、繰返し折り曲げされて６強度が低下
することがないという効果を秦し、産業利用１優れた発
明である。Effects of the Invention As detailed above, the conductor of this invention has low electrical resistance and does not lose its strength even when repeatedly bent, making it an excellent invention for industrial use. .
第１図はこの発明を具体化した開閉器の断面図、第２図
は超電導物質の特性を示す図、第３図は可ＩＱ導体の拡
大西面図である。
８・・・端子金具、１２・・・可撓導体、１２ａ・・・
超電導物質の粒子。
第２図
↑
１３図
１りFIG. 1 is a sectional view of a switch embodying the present invention, FIG. 2 is a diagram showing the characteristics of a superconducting material, and FIG. 3 is an enlarged west view of an IQ conductor. 8... Terminal fitting, 12... Flexible conductor, 12a...
Particles of superconducting material. Figure 2 ↑ Figure 13 1ri
Claims (3)
とを特徴とする可撓性を備えた導電体。1. A flexible conductor characterized by mixing a superconducting substance into a flexible synthetic resin.
許請求の範囲第１項に記載の可撓性を備えた導電体。2. The flexible conductor according to claim 1, wherein the superconducting material is formed in the form of particles.
許請求の範囲第１項に記載の可撓性を備えた導電体。3. The flexible conductor according to claim 1, wherein the superconducting material is formed into a fibrous shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30118187A JPH01143103A (en) | 1987-11-27 | 1987-11-27 | Flexible electric conductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30118187A JPH01143103A (en) | 1987-11-27 | 1987-11-27 | Flexible electric conductor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01143103A true JPH01143103A (en) | 1989-06-05 |
Family
ID=17893754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP30118187A Pending JPH01143103A (en) | 1987-11-27 | 1987-11-27 | Flexible electric conductor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01143103A (en) |
-
1987
- 1987-11-27 JP JP30118187A patent/JPH01143103A/en active Pending
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