JPS59101731A - Vacuum interrupter - Google Patents

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】 □本発明は真空インタラ１夕に係シ、特にアークに対し
て軸方向の磁界を印加するようにした、いわゆる縦磁界
方式の真壁インタラ１夕に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a vacuum interferometer, and particularly to a so-called vertical magnetic field type Makabe interferometer in which an axial magnetic field is applied to an arc.

縦磁界方式の真空インタラ１夕は、アークに軸方向の磁
界を印加す暮ことにより、アークＩＩ−％他面に安定力
・つ均一に介在せしめ、もってしゃ断容量の向上を図る
もので、従来第１図に示すようにセラミックｌたはガラ
スからなる杷縁簡ｌの両端ｔ４：鵜からなる端＆コ、２
により気穎に閉塞したつ内部を高真空に排気した真空容
器３内に、対ｔなす電極俸弘、よｔ相対的に接近離反自
在に導入するとともに、各１！極捧≠、ｊの内端部に、
外部回路全投入、しゃ断すべく接触離反（接離）される
接触’に極ｔｉ、ｙｉと、接触電極４／、７／の接＃ｌ
農面１１１１（電極棒側）に離隔して配置さｎかりｔＷ
極棒≠、ｊに流ｎる電流をそｎぞれの電極棒グ。The vertical magnetic field type vacuum interconnector applies an axial magnetic field to the arc, thereby creating a stable and uniform force on the other side of the arc, thereby improving the breaking capacity. As shown in Fig. 1, both ends t4 of the loquat edge sill made of ceramic or glass: the ends t4 made of cormorant, 2
Into the vacuum container 3, whose interior was evacuated to a high vacuum, the inside of which was blocked by air, two electrodes were introduced so as to be able to approach and separate from each other. At the inner end of j,
The external circuit is fully turned on, and the contact terminals ti and yi are connected to the contacts to be disconnected (contacted and separated) to be cut off, and the contact terminals #l of the contact electrodes 4/ and 7/
Placed separately on the agricultural surface 1111 (electrode rod side)
Pole rod ≠, the current flowing through j to each electrode rod g.

ｊＱ中心とするルーフ１１１Ｌ流に変史して軸方向（第
１図に一一いて上下１同）の磁界音発生するコイル電＆
”　＃　７λとからなる電極６，７を連設して構成さｎ
ている。The coil electric coil that changes its history to the roof 111L flow centered on jQ and generates magnetic field sound in the axial direction (one above and below in Fig. 1)
” It is constructed by consecutively connecting electrodes 6 and 7 consisting of #7λ.
ing.

なＰ％第１図に２いてｒＦｉベローズ、りは主シールド
、ｉｏ、ｉｏは補助シールドでめる。In Figure 1, P% is 2, rFi bellows, RI is the main shield, io, io is the auxiliary shield.

しかるに、上述した真壁インタラフ゛夕に２いて、各電
極６，７の接触電極Ａ／、７／が導電率の尚いＣｕの如
き材料からなる場合には、軸方向磁界がこれらと鎮交す
ることにより接触電極６／、７／にうず電流が流れ、コ
イル電極６λ、７−２によシ生ずる軸方向磁界の磁束＠
度が低下する間組がるる。However, in the above-mentioned Makabe interface 2, if the contact electrodes A/, 7/ of each electrode 6, 7 are made of a material with low conductivity, such as Cu, the axial magnetic field will intersect with these. eddy current flows through the contact electrodes 6/, 7/, and the magnetic flux of the axial magnetic field generated by the coil electrodes 6λ, 7-2 @
While the degree decreases, it is difficult to do so.

かかる間組に対処するため、第２図に示すように、ステ
ンレＸｍの茹＜低導電都の材料からなる烏抵抗スペーサ
（図示省略）を介在せしめて’ｉｌｌ極伸弘極捧の内端
部に連設さｎる谷接触電極６／。In order to deal with this problem, as shown in FIG. A valley contact electrode 6/ is provided.

７１に、半径方向の被数のスリン）　４　／　６，７／
ａｔ″設は友ものが提案さｎているが、各スリン）Ａ／
ａ。71, radial decimal surin) 4/6,7/
At'' setting was suggested by a friend, but each Surin) A/
a.

７／ａは、電極径が１００ｒｒ／ｍ程度の場合には、そ
の半径方向の切込み１ｃ深くする必賛がめり、いき２い
！他自身の機械的！ｉ！ｉ度が低下し、かつスリン）６
／ａ、７／Ｂのエツジにより耐電圧が低下する問題がる
るとともに、大電流の多数回のしゃ断によりスリンｉ−
４／　ａ　、　７　／　３がうまってしまい、結果的に
しゃ断性能の低下金もたらしている。7/a, if the electrode diameter is about 100rr/m, it is necessary to make the radial cut 1c deeper. Other own mechanical! i! degree decreases and sulin) 6
There is a problem that the withstand voltage decreases due to the edges of /a and 7/B, and the sulin i-
4/a and 7/3 are increased, resulting in a decrease in cutting performance.

また、前述した問題に対処するため、接触電極成してな
るものが提案さｎている。しかし、％導電率が４０％以
下の材料、たとえばベリリウム、Ｃｕ−ｙｙ合金または
Ａｇ−Ｗ合金により接７’ｌ！に電極６〈。Further, in order to deal with the above-mentioned problems, a device comprising a contact electrode has been proposed. However, materials with a % conductivity of 40% or less, such as beryllium, Cu-yy alloys or Ag-W alloys, can be used for contacting 7'l! Electrode 6〈.

７／ｌ−形成した場合ｔ／ｃは、うず１を流がかなり減
少し、スリットを設ける必要はないものの、コイル′ｌ
ＩＬ他６２ｍ”ｋｓ第２図に示すように、基部を電極４
１弘、ｊに接続した任方回の複数の軛６コａ。7/l- If the t/c is formed, the flow through the vortex 1 will be considerably reduced, and although there is no need to provide a slit, the coil 'l
As shown in Figure 2, the base is connected to the electrode 4.
1 Hiro, multiple yoke 6 cores of any direction connected to j.

７．２ａと、６腕ａ、ｚＢ　、７コａ　、（１）　端１
１５から円弧状。7.2a, 6 arms a, zB, 7 arms a, (1) end 1
Arc shape from 15.

ＶＣ湾曲した円弧部６コｂ、７λｂとからなる分流タイ
プとし、かつコイル電極６λ、７−の各円弧部６−２ｂ
、７−２ｂの端部と接触′ａ極６１．７１の接触製面外
周部付近とｔ軸方向の接続部体／／　　（Ｍ３図会照）
’に介して接続する場合には、第３−に示すように、ア
ークＡが外部磁界等のため接触％極６／　、７／の接触
部ｔｉｂ、７ｉｂがら偏倚して発生すると、各檄軟纒体
ｌｌからアークＡに流ｆＬる分流″ＩＩＩＬ陣Ｉｔ＊Ｉ
意＠Ｉｓ＊Ｉ４にバラツキを生ずるとともに、軸力同磁
界の分布に丸を生じ、結果的にしヤ断性能の低下ｒもた
らす。また、接触電極ｔｉ、７ｉの嶌専電率が低い場合
には、辿１を時にＰりる発熱が大となる等゛の問題があ
る。VC is a shunt type consisting of curved arc portions 6 b and 7 λb, and each arc portion 6 - 2 b of the coil electrodes 6 λ and 7 -
, the contact body with the end of 7-2b and the area around the outer periphery of the contact surface of pole 61.71 and the connection body in the t-axis direction // (see drawing M3)
If the arc A is displaced from the contact portions tib and 7ib of the contact poles 6/ and 7/ due to an external magnetic field, etc., as shown in No. A branch flow from the body ll to arc A ``IIIL formation It*I
This causes variations in the axial force and the distribution of the magnetic field, resulting in a decrease in shear cutting performance. Further, if the electric current ratio of the contact electrodes ti and 7i is low, there is a problem that the heat generation that sometimes exceeds trace 1 becomes large.

不発８Ａは上述した間瓶に−み１なされたもの亀その目
的とするところは、機械的強度の低下をもたらすことな
く、うず電流の発生の抑制Ｐよひ磁東ｆＭ度の増大をな
し得るようにした縦磁界方式の真空インタラ１夕全提供
するにるる。以下、第４図以降の図面を参照してこの発
明の実施例紮評細に説明する。なＰ、以下の説明ＶＣ′
ｓ？いて前述し１ヒ従来の真空インタラツタの構成部材
と同一機Ｎｉｌ奏する不発明に係る真空インタラプタの
構成部材には同一符号を付してその説明を省略し、また
谷ＩｖＩＬ極はｔよは同様の構成でめるので一方の′電
極について説明し他方の′ル、極についてはその説明を
鳴略する。The misexplosion 8A is considered to be similar to the above-mentioned case.The purpose of the misfire 8A is to suppress the generation of eddy currents and increase the magnetic east fM degree without reducing the mechanical strength. We provide a complete vertical magnetic field type vacuum intara. Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings from FIG. 4 onwards. P, the following explanation VC'
S? The constituent members of the vacuum interrupter according to the invention, which are the same as the constituent members of the conventional vacuum interrupter described above, are given the same reference numerals and the explanation thereof will be omitted, and the valley IvIL pole is the same as that of the conventional vacuum interrupter. Since the configuration can be explained, one electrode will be explained, and the explanation of the other electrode will be omitted.

第４図は不発明に係る真空インタラゲタの電極ＩＬ ７の秘断囲図で、この電極７は、ベリリウム、労−Ｗ合
金またはＡｇ−Ｗ合金の如く島専亀率４ｏｚ以下の低導
電率の材料からなる笠形円板状の接触分流タイ１のコイ
ル電極７−２と？組合せて＠Ｌ略構成さ扛ている。FIG. 4 is a secret cross-section diagram of the electrode IL 7 of the vacuum interrogator according to the invention, and the electrode 7 is made of a material having a low conductivity of less than 4 oz, such as beryllium, a Labor-W alloy, or an Ag-W alloy. The coil electrode 7-2 of the cap-shaped disk-shaped contact shunt tie 1 made of material? In combination, @L is constructed.

すなわち、′−極棒ｊの内端部には、第４図、第５図に
示すように、このｖＬ極棒ｊの外径よシ逸宜大径の円板
状の取付ベース７Ｊｃと、取付ベース７−２０の外周か
ら半径方向外方へ放射状に延在する４本の腕７−２ａと
、６腕７−２ａの端部から円弧状に力曲した円弧部７２
ｂとからなるコイル１１Ｌ憾７−２が、取付ベース７コ
Ｃの一面（＋！４図に２いて下１１１１）にｔｉけた円
形の凹部１−２ｔ（介して嵌合さ１するとともにろう付
けさ牡てｊ？ｔ）、コイル１１Ｌ憾７λの各円弧部７−
２ｂの端部には、接続尋体ｉｔｓ伸瘤する孔１３が軸方
向へ貫通して設けらｎている。That is, as shown in FIGS. 4 and 5, the inner end of the '-pole j is provided with a disk-shaped mounting base 7Jc having a diameter larger than the outer diameter of the vL pole j, Four arms 7-2a extend radially outward from the outer periphery of the mounting base 7-20, and a circular arc portion 72 is bent into an arc shape from the end of the six arms 7-2a.
The coil 11L consisting of 7-2 is fitted through the circular recess 1-2t (1111 below 2 in Figure 4) on one side of the mounting base 7C (+! ), each arc portion 7- of the coil 11L 7λ
A hole 13 through which the connecting body extends in the axial direction is provided at the end of 2b.

そして、コイル′ａ極７−２は、電極作ｊの内端部付近
の外周に嵌装さｎるとともにろう付けさ几たリング状の
取付部７４′ａと、取付部ｉ４！ａの外周から半径方向
外方へ放射状ＫｊＬ伸した複数（本実施例に２いては８
本）の支持腕／４（１）とからなる袖（第ｔＩＶ１＄−
Ｉ！ｑ） 弦支持部材／４Ｉにょシ支持されている。The coil 'a pole 7-2 is fitted onto the outer periphery near the inner end of the electrode member j and has a ring-shaped attachment part 74'a and an attachment part i4! which are brazed together. A plurality of radially extending KjL from the outer periphery of a (2 in this example, 8
Sleeve consisting of supporting arm/4(1) of book) (th IV1$-
I! q) String support member/4I is supported.

なυ、補強支持部材１４ｔは、ステンレス鋼の如く比較
的機械的強度大にしてかつ低導電率の材料からなるもの
でろ夕、その支持Ｊｌｌｕ／４’ｂは、少なくともコイ
ル電極７−２のＩｌｄ、　７−２　、ａと同数に設けら
ｎ、かつ支持腕／Ｆｂの端部は、円弧部７コｂの端部と
ろう付けされているものである。The reinforcing support member 14t is made of a material with relatively high mechanical strength and low conductivity, such as stainless steel, and its support Jllu/4'b is at least equal to Ild of the coil electrode 7-2. , 7-2, the end portions of the support arms/Fb are provided in the same number as a and are brazed to the end portions of the circular arc portions 7b.

ＳｉＪ記コイル電極７コの取付ベース７コＣの他面に設
けた円形の凹部ｉｚｌ／ｃは、両端［７ランジｒ形成し
た短円筒状にしてかつステンレス鋼の如く％導電率の低
い材料からなる高抵抗スペーサ１６がその一端の７ラン
ジ全介して嵌合さｎるとともにろう付けさｎている。そ
して、高抵抗スペーサ１６の他端の７ランジには、第４
図、第７図に示すように、この７ランジよシ大径にして
かつ筒抵抗スペーサｌ乙の内径と同径の透孔を有するリ
ング円板状の取付ベース／７ａと、取付ベース／７ｆｉ
の外周から半径方向外方へ放射状に延伸した４２ｆ−の
腕１７ｂと、６腕１７ｂの端部たら相隣るーカのに／７
ｂＯ端部方同へ両者１１Ｊの円弧の４以下の長さ葡弔し
て日弧状に湾曲した円弧部／７ｃとからなるアダプタ１
７が、それそｎの円弧１１１Ｓ／７ｃｔ流オＬる′ｗＬ
流がコイル電極７λの同弧部７Ｊ１３ｙ７（流れるＩｌ
流と同方向となるが如くシ、取付ベース／７．０−面に
設けた円形の凹部／１２介して嵌合８ｔＬるとともにろ
う付けさ扛ている。アダプタＣ仏 １７は、紗の如く比較的ｉ＆Ｉ尋亀畢の相料からなるも
ので、その取付ベース／７ａは、腕／７ｂ−ｂ−よび円
弧部／７ｃよシ第４図において僅かに上方へ突出されて
いる。また、アダプタ１７の各円弧部／７ｃの端部に設
けた凹部ｌりには、アダプタとコイル電極７コとｔ電気
的に接続すべく、一端ｔコイル電極７Ｊ（７）円弧部７
λｂの孔／３に挿漸した軸方向の接続導体／／の他端が
＠看されているＯ前記アダプタ１７には、コイル′喝極
７−２とほぼ同径の笠形円板状に形成さｆｌ　ｒＣＦｉ
ｉＪ記接触電極７１がその接触裏面中央に設けた円形の
凹部コ０を介し嵌合してろう付けさｎているとともに、
その接触扱面ｔアダプタ１７の各腕／７ｂ１−よぴ円弧
部／７ｃと接触してろう付けさｎている。The circular recess izl/c provided on the other surface of the mounting base 7C of the 7 coil electrodes in SiJ is made of a short cylindrical shape with 7 flange r formed at both ends and made of a material with low % conductivity such as stainless steel. A high resistance spacer 16 is fitted and brazed through all seven flanges at one end thereof. The 7th flange at the other end of the high-resistance spacer 16 has a fourth
As shown in Figures 7 and 7, there is a ring-disk shaped mounting base /7a which has a larger diameter than the 7 flange and has a through hole with the same diameter as the inner diameter of the cylindrical resistance spacer l, and a mounting base /7fi.
The arms 17b of 42f extend radially outward from the outer periphery of the arm 17b, and the ends of the arms 17b are adjacent to each other.
Adapter 1 consisting of a circular arc part /7c curved in a solar arc shape with a length of 4 or less of a circular arc of 11J on both sides of the bO end.
7 is the circular arc 111S/7ct style O'wL
The same arc portion 7J13y7 of the coil electrode 7λ (flowing Il
It is fitted and brazed through a circular recess/12 provided on the mounting base/7.0 surface so as to be in the same direction as the flow. Adapter C Buddha 17 is made of a relatively thin material like gauze, and its mounting base /7a is slightly above the arm /7b-b- and the arc part /7c in Fig. It is projected to. In addition, one end of the coil electrode 7J (7) is inserted into the concave portion provided at the end of each arc portion/7c of the adapter 17 in order to electrically connect the adapter and the coil electrode 7.
The other end of the connecting conductor in the axial direction inserted into the hole /3 of λb is shown in the adapter 17, which is formed in the shape of a cap-shaped disc with approximately the same diameter as the coil's pole 7-2. sfl rCFi
The contact electrode 71 is fitted and brazed through a circular recess provided at the center of the contact back surface, and
The contact surface t is in contact with each arm/7b1 to the arc portion/7c of the adapter 17 and is brazed.

ここでアダプタ１７の円弧ｍ１７ｃの長さｒ変化した場
合ｔｌｃ２ける極間ギャップ中心位置での磁束密度Ｂ　
（Ｇａｕｓｓ／ＫＡ）　２よび縦磁界の位相遅れθ（度
）は、第８図に２いて曲線Ａ２よびＢで示すようになっ
た。すなわち、第８図は、横軸にアダプター７の相−る
ｇ４ｉｔｂの端部間の円弧長さしに対するアダプタフッ
０円弧部の長さＬの比４（Ｘ＋）ｋとるとともに、鉄相
に磁束ＶＢ度Ｂ（ハ）ａｕｓｓ／Ｋ　ｌおよび位相遅ｎ
θ（度）とり、外径１００−４の低導電率の材料からな
る一対の接触電極と４分流タイプのコイルを惚２よひア
ダプタと＊−ｔｎぞｎ組合せたー他七用い、１５にの極
間ギャップの中心で測定した結果を示している・ したがって、アダプター７０円弧部／７ｃの長石りは、
相隣る軛／７ｂの端部間の円弧長さＬの７５％未満の場
合に、アダフ”り１７の円弧部／７ｃの端部と相−、る
軛／７ｂとの胸ｒｃ　２いて電流が接触１ｍ＆７／ｌ−
介して分流するのが抑制されて良好な結果會もたらすこ
とが判る。Here, if the length r of the arc m17c of the adapter 17 changes, the magnetic flux density B at the center position of the gap between poles by tlc2
(Gauss/KA) 2 and the phase delay θ (degrees) of the longitudinal magnetic field are now shown by curves A2 and B in FIG. That is, in FIG. 8, the ratio 4(X+)k of the length L of the arc portion of the adapter foot 0 to the arc length between the ends of the phase g4itb of the adapter 7 is plotted on the horizontal axis, and the magnetic flux is applied to the iron phase. VB degree B (c) auss/K l and phase delay n
A pair of contact electrodes made of a low-conductivity material with an outer diameter of 100-4 and a four-way shunt type coil were combined with a *-tn-zonn adapter and seven other uses, 15. The figure shows the results measured at the center of the gap between the poles. Therefore, the feldspar of the arc part of the adapter 70/7c is
If the arc length L between the ends of the adjacent yoke/7b is less than 75%, the current between the end of the arc part/7c of the lining 17 and the yoke/7b contact 1m & 7/l-
It can be seen that the flow is suppressed from being divided through the tube, resulting in a good result.

なお、上述した実施例に２いては、コイルｔＬ極７−２
２よびアダプタ１７を号分流タイプとした場合について
述べたが、こｎに限らずたとえは５分流タイプまたは４
分流タイプのものを用いてもよいものである。In addition, in the second embodiment described above, the coil tL pole 7-2
2 and the adapter 17 are of the No. 5 branch type, but this is not the only example.
A branch type may also be used.

以上の如く本発明は、真空容器内に対會なす電極棒を相
対的に接近離反自在に導入し、前記各電極棒の内端部に
、低導電率の材料により一面中央に接触部を形成さｎる
とともに、他面に円形の散村ベースとこの取付ベースか
ら半径方向へ延伸した複数の腕と６腕のｍｆｌＢから相
隣る一方の軛の端部方向へ円弧状に湾曲しかつ両者間の
円弧のへ以下の長さｔ有する円弧部とからなるアダフ゛
りを接合した接触電極を１高抵抗スペーサ全介在せしめ
て連設し、前記各電極棒の内端部付近にその外周面から
半径方向へ延伸した複数の腕と６真の端部から円弧状に
湾曲した円弧部とからなるコイル旭他會付設するととも
に、コイル電極の各円弧部の端部とｎＩＩ記アダプタの
円弧部の端部とｔ軸方向の磁界ｔ−発生すべく軸方向の
接続尋体を介して接続してなるものであるから、接触％
極の機械的強度が低下することがないとともに、接触％
他面の通電経路が短かくな夛、その発熱愛を−すること
ができる。また、コイル電極と相俟ってアダプタがコイ
ルとして機能し、かつ接触電極ｒ介してアダプタの嵐と
円弧部との間で電流が分流することがないので、磁束密
度全一層同上することができる等の効果會奏す。As described above, the present invention introduces opposing electrode rods into a vacuum container so that they can approach and separate from each other, and a contact portion is formed at the center of one surface at the inner end of each electrode rod using a material with low conductivity. At the same time, on the other side, there is a circular base, a plurality of arms extending in the radial direction from this mounting base, and a circular arc shape extending from the six arms mflB toward the end of one of the adjacent yoke. A contact electrode having a circular arc portion having a length t equal to or less than that of the circular arc between them is connected in series with one high-resistance spacer interposed therebetween, and a A coil consisting of a plurality of arms extending in the radial direction and a circular arc portion curved in an arc shape from the six true ends is attached, and the ends of each circular arc portion of the coil electrode and the circular arc portion of the nII adapter are attached. Since the end portion is connected to the t-axis via a connecting body in the axial direction to generate a magnetic field t-, the contact percentage is
The mechanical strength of the poles does not decrease and the contact %
Since the current conduction path on the other side is short, the heat generation can be avoided. In addition, since the adapter functions as a coil in conjunction with the coil electrode, and the current is not shunted between the arc and the arc portion of the adapter via the contact electrode, the magnetic flux density can be the same throughout the entire layer. etc. effects.

【図面の簡単な説明】[Brief explanation of drawings]

第１図は従来の真空インタラプタの縦断面図で、第２図
はその電極の斜視図、第３図は従来の電極の作用説明図
、第４崗は本発明に係る真をインタラプタの′ｔＪＩＬ
＆の縦断面図、第５図、第６図および第７図はそｎぞれ
要部の平面図、第８図にアダプタの円弧部の長さを変化
した場合に２ける磁束密度と位相遅扛の状態を表わした
説明図である。 ３・・・Ａを容器、≠、ｊ・・・′に他称、６，７・・
・電極、ＩＩ・・・接続褥体、／ｌ・・・烏抵抗スペー
サ、１７・・・アタグタ、／７Ｂ・・・取付ペース、／
７ｂ・・・腕、／７ｃ・・・円弧部、６／、７／・・・
接触電極、６λ、７コ・・・コイル′ｒＭ、＠！、、７
λａ・・・腕、７−２ｂ・・・円弧部。 図面の：’ｎ　Ｓ：ｊ　Ｃ白占に変更ない第１図 ２、発明の名称 真空インタ２ブタ ３、補正をする者 事件との関係　　出願人 （６１０）株式会社　明　電　舎 ４、代理人〒１０４Fig. 1 is a longitudinal cross-sectional view of a conventional vacuum interrupter, Fig. 2 is a perspective view of its electrodes, Fig. 3 is an explanatory diagram of the operation of the conventional electrodes, and Fig. 4 shows the tJIL of the interrupter according to the present invention.
& Figures 5, 6, and 7 are plan views of the main parts, and Figure 8 shows the magnetic flux density and phase when the length of the arc portion of the adapter is changed. FIG. 3 is an explanatory diagram showing a state of delayed release. 3...A is a container, ≠, j...' is another name, 6,7...
・Electrode, II... Connection bed body, /l... Crow resistance spacer, 17... Attaguta, /7B... Mounting space, /
7b...arm, /7c...arc part, 6/, 7/...
Contact electrode, 6λ, 7...coil 'rM, @! ,,7
λa...Arm, 7-2b...Circular arc part. Drawings: 'n S:j C No change to white reading Figure 1 2, Name of the invention Vacuum Interchanger 2 Button 3, Person making the amendment Relationship to the case Applicant (610) Meidensha Co., Ltd. 4, Agent 〒104

Claims (1)

【特許請求の範囲】[Claims] Ｉｌｌ　　Ｘを容器内に対１！ｉ−なすｔ極棒會相対的
に接近離反自在に導入し、前記各電極棒の内端部に、低
導電率の材料により一自中央に接触部を設けた円板状に
形成されるとともに、他面・　　に円形の取付ベースと
この取付ベースから牛径方向へ延伸した複数の腕と各ｈ
ｅ）端部から相隣る一方の腕の端部方向へ円弧状に崗曲
しかつ両者間の内弧の４以下の長さ全層する円弧部とか
らなるアダプタｔ−接合した接触電極７１島抵抗スペー
サを介在せしめて連設し１、　前記各電＆鈴の内端部付
近にその外Ｊｌｌ１１面から半径方向へ延伸した複数の
腕と６腕の端部から円弧状に湾曲した円弧部とからなる
コイル電極を付設するとともに、コイル１！極の各円弧
部の端部と前記アダプタの円弧部の端部とを軸方向の磁
界を発生すべく軸方向の接続導体を介して＃ｉ−枕して
なる真空インタラゲタ。Ill X in a container vs. 1! The electrode rods are introduced so as to be able to approach and separate from each other, and the inner ends of each electrode rod are formed into a disc shape with a contact portion at the center made of a material with low conductivity. , On the other side, a circular mounting base, a plurality of arms extending from this mounting base in the cow radial direction, and each h
e) Adapter T-joined contact electrode 71 consisting of an arcuate portion that curves in an arc shape from the end toward the end of one of the adjacent arms and has a full thickness of 4 or less inner arcs between the two. A plurality of arms are arranged in series with an island resistance spacer interposed therebetween, and a plurality of arms extend in a radial direction from the outer Jll11 surface near the inner end of each of the above-mentioned electric and bells, and a circular arc portion curved into an arc from the end of the six arms. In addition to attaching a coil electrode consisting of a coil 1! A vacuum interrogator in which the end of each arcuate portion of the pole and the end of the arcuate portion of the adapter are connected via an axial connecting conductor to generate an axial magnetic field.