JPS5920934A - Vacuum switch - Google Patents
Vacuum switchInfo
- Publication number
- JPS5920934A JPS5920934A JP13144882A JP13144882A JPS5920934A JP S5920934 A JPS5920934 A JP S5920934A JP 13144882 A JP13144882 A JP 13144882A JP 13144882 A JP13144882 A JP 13144882A JP S5920934 A JPS5920934 A JP S5920934A
- Authority
- JP
- Japan
- Prior art keywords
- vacuum switch
- vacuum
- conductor wall
- electrode
- plasma
- 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
Landscapes
- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
この発明は、真空スイッチに関するものであり、さらに
詳しくいうと、真空容器内に互いに接離する固定電極と
可動電極を収納してなる真空スイッチに関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a vacuum switch, and more specifically, to a vacuum switch in which a fixed electrode and a movable electrode that move toward and away from each other are housed in a vacuum container.
従来、この種の真空スイッチとして第１図に示すものが
あった。図において真空容器／の７側に固定電接コが固
着、収納されており、この固定電極λに対向する可動電
極３がベローズｌで真空容器／に連結支持されている、
ベローズカバー左ハアークシールドカバ−６，７ととも
に型枠間に発生するプラズマから真空容器ｌの内壁面を
保護する。真空容器／の側壁／ａはガラス、セラミック
のような絶縁物で形成されている。Conventionally, there has been a vacuum switch of this type as shown in FIG. In the figure, a fixed electric contact is fixed and housed on the 7 side of the vacuum vessel /, and a movable electrode 3 facing the fixed electrode λ is connected and supported to the vacuum vessel / by a bellows l.
The bellows cover protects the inner wall surface of the vacuum vessel l from the plasma generated between the formworks together with the left haark shield covers 6 and 7. The side wall /a of the vacuum container / is formed of an insulating material such as glass or ceramic.
以上の構成により、通常は固定ｆｆｌ極ユと可動電極３
が接触していて両電極間に電流が流れているが、この真
空スイッチを接続した回路に事故等が発生し、至急に電
流を遮断する必要が生じたとき、可動’＋’［ｊ ４ｉ
箕、？を矢印入方向に動かして回路を開く。With the above configuration, normally the fixed ffl pole and the movable electrode 3
are in contact and a current is flowing between the two electrodes, but if an accident occurs in the circuit to which this vacuum switch is connected and it is necessary to interrupt the current immediately, the movable '+' [j 4i
Winnie? Move in the direction of the arrow to open the circuit.
この開極時に両電極ユ、３間にプラズマＰが発生する。When the electrodes are opened, plasma P is generated between both electrodes 1 and 3.
このとき発生するプラズマの牡が少ないと、電極コ、３
間にかかる電圧が非常に低くなったときに電流が切れ、
回路が完全に開かれる。If the amount of plasma generated at this time is small, the electrode
The current cuts off when the voltage across it becomes very low,
The circuit is completely opened.
従来のものは以上の構成になっており、ＴＩＮ’？、間
に発生するプラズマに入力するエネルギが大となる。こ
れは、プラズマが不安定なため電極間にかかる電圧が高
くなるからである。そのため、プラズマによる電極の損
傷が大きくなり、真空スイッチの寿命を短縮するという
欠点があった。The conventional one has the above configuration, and TIN'? , the energy input to the plasma generated during this period becomes large. This is because the voltage applied between the electrodes increases because the plasma is unstable. Therefore, there was a drawback that the electrodes were seriously damaged by the plasma and the life of the vacuum switch was shortened.
この発明は、以上の事情に鑑みてなされたもので、長寿
命の正極をもつ真空スイッチを提供すること各・主な目
的とするものである。The present invention was made in view of the above circumstances, and its main purpose is to provide a vacuum switch having a long-life positive electrode.
寸だ、この発明の目的は、真空容器の外周に安定化導体
壁を設け、開俸時の１ｕ極間電圧を低くした真空スイッ
チを１是供することで；シ）る。The purpose of the present invention is to provide a vacuum switch in which a stabilizing conductor wall is provided around the outer periphery of a vacuum container, and the voltage between the terminals of 1u when the valve is opened is reduced.
以下、この発明の一実施例を第２図、第３図について説
明する。円筒状の真空容器／の絶縁体でなる側壁／ａの
外周にシェル状の安定化導体壁ｇを配設する。この安定
化導体壁ｇは導電性のよい銅またはアルミニウムでなり
、第３図に示すように軸線方向に一分割されたシェル部
側ｇａ、Ｉｒｂから構成されている。その他の部分は第
１ ｌ’Ｊと同様である。An embodiment of the present invention will be described below with reference to FIGS. 2 and 3. A shell-shaped stabilizing conductor wall g is disposed around the outer periphery of a side wall /a made of an insulator of a cylindrical vacuum vessel /. This stabilizing conductor wall g is made of copper or aluminum having good conductivity, and is composed of shell portion sides ga and Irb that are divided into parts in the axial direction, as shown in FIG. The other parts are the same as the first l'J.
かような構成により、真空スイッチとしての動作原理は
、従来と同様でＪ）るが、安定化導体壁にを設けたこと
により、プラズマ電流に伴って生じる磁場が内側に閉込
められ、プラズマＰの両端、つ寸り電極コ、３間の電圧
が低くなる。With this configuration, the operating principle as a vacuum switch is the same as the conventional one, but by providing the stabilizing conductor wall, the magnetic field generated with the plasma current is confined inside, and the plasma P The voltage between both ends of the electrode and the half-sized electrode 3 becomes low.
なお、上記の実施例では、安定化導体壁ｇを軸方向にコ
分割したが、一つ以上の分割でもよい。In the above embodiment, the stabilizing conductor wall g is divided into co-divided parts in the axial direction, but it may be divided into one or more parts.
また、分割したシェル部材間に適宜の空間が介在した構
成であってもよい。Further, a configuration may be adopted in which an appropriate space is interposed between the divided shell members.
以上のように、この発明によるときけ、電捧間のプラズ
マの…−もしくはエネルギが低減され、電極の１０粍が
抑制されるので真空スイッチの寿命が延長される。さら
に、安定化導体壁ｇは真空容器／の外側に配設されるの
で、これを真空容器／の内側に増刊けるよりも工作９組
立てが容易となり、かつ、分割されたシェル部材の組立
て構成になっているので組立て作業性がよく、安価にな
１．ツる等の効果がある。As described above, according to the present invention, the energy of the plasma between the electric current and the electric current is reduced, and the loss of 10 mm of the electrode is suppressed, so that the life of the vacuum switch is extended. Furthermore, since the stabilizing conductor wall g is disposed outside the vacuum vessel/, it is easier to assemble the work 9 than adding it inside the vacuum vessel/, and it is possible to assemble the divided shell members. 1.Easy to assemble and inexpensive. It has effects such as tsururu.
第１（りは従来の装置の縦断面図、第２図はこの発明の
一実施例の縦断面図、第３図は同じく要部分解斜視図で
ある。
／−・真空容器、ｔａ・・側壁、λ・・固定電極、３・
・可動電極、ｌ・・ベローズ、左・・ベローズカバー、
７・・アークシールドカバー、ｇ・・安定化導体壁、ｔ
ａ、ｇｂ・・シェル部層。
なお、各図中、同一符号は同−又は相当部分を称才。
代理人 葛 野 信 −
幣１図
第２図
％３図The first figure is a vertical cross-sectional view of a conventional device, the second figure is a vertical cross-sectional view of an embodiment of the present invention, and the third figure is an exploded perspective view of the main parts. Side wall, λ・・Fixed electrode, 3・
・Movable electrode, l... bellows, left... bellows cover,
7. Arc shield cover, g. Stabilizing conductor wall, t
a, gb...Shell layer. In each figure, the same reference numerals refer to the same or corresponding parts. Agent Makoto Kuzuno - Figure 1 Figure 2 Figure 3 %3
Claims (1)
筒状の真空容器と、この真空容器の絶縁体でなる側壁の
外周に配設された円筒状の安定化導体壁を備えてなり、
前記安定化導体壁は１Ｉｌｔ＋線方向に複数に分割され
たシェル部層でなることを特徴とする真空スイッチ。A cylindrical vacuum container housing a fixed electrical connection and a movable electrode facing each other on a central axis, and a cylindrical stabilizing conductor wall disposed around the outer periphery of a side wall made of an insulator of this vacuum container. Become,
A vacuum switch characterized in that the stabilizing conductor wall is composed of a shell layer divided into a plurality of layers in the 1Ilt+ line direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13144882A JPS5920934A (en) | 1982-07-26 | 1982-07-26 | Vacuum switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13144882A JPS5920934A (en) | 1982-07-26 | 1982-07-26 | Vacuum switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5920934A true JPS5920934A (en) | 1984-02-02 |
Family
ID=15058191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13144882A Pending JPS5920934A (en) | 1982-07-26 | 1982-07-26 | Vacuum switch |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5920934A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5266536A (en) * | 1990-07-30 | 1993-11-30 | Tioxide Group Services Limited | Ceramic green bodies |
-
1982
- 1982-07-26 JP JP13144882A patent/JPS5920934A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5266536A (en) * | 1990-07-30 | 1993-11-30 | Tioxide Group Services Limited | Ceramic green bodies |
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