JPH06150786A - Vacuum valve - Google Patents
Vacuum valveInfo
- Publication number
- JPH06150786A JPH06150786A JP32609192A JP32609192A JPH06150786A JP H06150786 A JPH06150786 A JP H06150786A JP 32609192 A JP32609192 A JP 32609192A JP 32609192 A JP32609192 A JP 32609192A JP H06150786 A JPH06150786 A JP H06150786A
- Authority
- JP
- Japan
- Prior art keywords
- electrode
- magnetic field
- main electrode
- main
- arc
- 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.)
- Granted
Links
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
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/664—Contacts; Arc-extinguishing means, e.g. arcing rings
- H01H33/6644—Contacts; Arc-extinguishing means, e.g. arcing rings having coil-like electrical connections between contact rod and the proper contact
Landscapes
- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、真空遮断機等に使用
される真空バルブの電極構造に係り、特にアークと平行
な縦方向磁界を発生する電極を有するものに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electrode structure of a vacuum valve used in a vacuum circuit breaker or the like, and more particularly to one having an electrode for generating a longitudinal magnetic field parallel to an arc.
【０００２】[0002]
【従来の技術】従来の縦方向磁界を発生させる真空バル
ブの電極構造として、例えば図８に示すものがあった
(特開昭６１−１９５５２８号公報参照)。図において、
電極棒１の先端部１ａにはアーム型接続片７が取り付け
られており、アーム型接続片７はその中心部に上記先端
部１ａに嵌合されるリング部７ａを有し、リング部７ａ
の外周部には４本の半径方向外方に伸びる腕部７ｂが形
成され、更に各腕部７ｂの先端には垂直上方に接続部７
ｃが突設されている。そしてこのアーム型接続片７の上
部には主電極３が固着されており、該主電極３は円板状
の中央部３ａと４個の円弧状のコイル部３ｂから成り、
コイル部３ｂはその基部端３ｃが中央部３ａに連続して
一体に形成され、この基端部３ｃから同一円周方向に伸
びている。そして、コイル部３ｃの先端背面３ｄにはア
ーム型接続片７の接続部７ｃの上面７ｄが当設してい
る。また、８は支持部材であり、その棒状部８ａは電極
棒１の支持穴１ｃに挿入固着され、その円板状の支持部
８ｂは主電極３の中心部を背部から支持している。そし
て、上記電極棒１、アーム型接続片７、主電極３、支持
部材８は相対向して一対の電極を成し真空容器に納めら
れて真空バルブを構成する。2. Description of the Related Art As an electrode structure of a conventional vacuum valve for generating a vertical magnetic field, there is, for example, one shown in FIG.
(See Japanese Patent Laid-Open No. 61-195528). In the figure,
An arm-type connecting piece 7 is attached to the tip portion 1a of the electrode rod 1, and the arm-type connecting piece 7 has a ring portion 7a fitted to the tip portion 1a at the center thereof, and the ring portion 7a.
Four arm portions 7b extending outward in the radial direction are formed on the outer peripheral portion of each of the connecting portions 7 and the connecting portions 7 are vertically upward at the tips of the respective arm portions 7b.
c is projected. The main electrode 3 is fixed to the upper part of the arm type connection piece 7, and the main electrode 3 is composed of a disk-shaped central portion 3a and four arc-shaped coil portions 3b,
The coil portion 3b has a base end 3c continuously formed integrally with the central portion 3a, and extends from the base end 3c in the same circumferential direction. The top surface 7d of the connecting portion 7c of the arm-type connecting piece 7 is abutted on the tip rear surface 3d of the coil portion 3c. Further, 8 is a supporting member, the rod-shaped portion 8a thereof is inserted and fixed in the supporting hole 1c of the electrode rod 1, and the disc-shaped supporting portion 8b supports the central portion of the main electrode 3 from the back portion. The electrode rod 1, the arm-type connecting piece 7, the main electrode 3, and the supporting member 8 face each other to form a pair of electrodes, which are housed in a vacuum container to form a vacuum valve.
【０００３】次に、動作について説明する。図９におい
て、アークスポットが主電極３のＰ点に発生した場合、
電流は電流経路Ｒに沿って、Ｐ点から中央部３ａを半径
方向外方に向かって進み、コイル部３ｂの基端部３ｃを
通ってその先端背面３ｄに流れ、アーム接続片７の接続
部７ｃ、腕部７ｂ、リング部７ａを介して電極棒１に流
れ、これにより縦(軸)方向の磁界を発生させる。そし
て、この縦方向磁界により真空容器内に自然拡散するプ
ラズマを効果的に抑え、遮断時の主電極間のアーク電圧
を低減すると共に、アークが主電極表面の１箇所に集中
せずに全面拡散する。その結果、遮断能力を向上させる
ことができる。なお、主電極３からの電流が支持部材８
を経て電極棒１に流れないように、支持部材８は電気抵
抗の高い材料が使用されている。Next, the operation will be described. In FIG. 9, when an arc spot occurs at point P of the main electrode 3,
A current travels radially outward from the point P along the current path R through the central portion 3a, passes through the proximal end portion 3c of the coil portion 3b, and flows to the rear surface 3d of the distal end thereof. It flows to the electrode rod 1 via 7c, the arm portion 7b, and the ring portion 7a, thereby generating a magnetic field in the vertical (axial) direction. This longitudinal magnetic field effectively suppresses the plasma that naturally diffuses into the vacuum container, reduces the arc voltage between the main electrodes when shutting off, and spreads the arc over the entire surface without concentrating on one location on the main electrode surface. To do. As a result, the blocking ability can be improved. The current from the main electrode 3 is applied to the support member 8
The support member 8 is made of a material having a high electric resistance so that it does not flow into the electrode rod 1 via the.
【０００４】[0004]
【発明が解決しようとする課題】従来の真空バルブは以
上のように構成され、縦方向磁界を有効に発生するよう
に工夫されているが、主電極間に発生したアークに対し
てコイル部により印加する磁界は均一ではない。即ち、
コイル部により発生する縦方向磁界は半径方向に分布を
持っており、中心部で強く、周辺部で弱くなっている。
よって、アークの拡散の均一性が悪く、遮断性能がその
分劣る問題がある。The conventional vacuum valve is constructed as described above and is devised so as to effectively generate the longitudinal magnetic field. However, a coil portion is used for the arc generated between the main electrodes. The applied magnetic field is not uniform. That is,
The longitudinal magnetic field generated by the coil portion has a radial distribution, and is strong in the central portion and weak in the peripheral portion.
Therefore, there is a problem that the uniformity of the arc diffusion is poor and the interruption performance is inferior.
【０００５】この発明は、上記のような問題点を解消す
るためになされたもので、コイル電極により発生した磁
界の均一性を向上させてアークを全面に拡散する遮断性
能の高い真空バルブを提供することを目的とする。The present invention has been made in order to solve the above-mentioned problems, and provides a vacuum valve having a high interruption performance for improving the uniformity of a magnetic field generated by a coil electrode and diffusing an arc over the entire surface. The purpose is to do.
【０００６】[0006]
【課題を解決するための手段】この発明に係る真空バル
ブは、縦方向磁界を発生させるコイル部を有するものに
おいて、その主電極の背面にリング状の磁性体を配置
し、またその主電極中央部に凹部を設けた。The vacuum valve according to the present invention has a coil portion for generating a longitudinal magnetic field, in which a ring-shaped magnetic body is arranged on the back surface of the main electrode and the center of the main electrode is arranged. A recess was provided in the part.
【０００７】また、主電極の背面にその半径方向の厚み
が中心から外側にかけて厚くなるような磁性体を配置し
た。Further, a magnetic material is arranged on the back surface of the main electrode so that the thickness in the radial direction increases from the center to the outside.
【０００８】また、縦方向磁界を発生させるコイル部の
半径方向厚みを、主電極側では厚く、主電極から遠い側
では薄く形成した。Further, the radial thickness of the coil portion for generating the vertical magnetic field is made thicker on the main electrode side and thinner on the side far from the main electrode.
【０００９】更に、相対向する主電極をカバーするシー
ルドの外周部に、磁性体を設けた。Further, a magnetic material is provided on the outer peripheral portion of the shield which covers the opposing main electrodes.
【００１０】また、電極棒とコイル部の間に軸方向導体
と半径方向導体を介装し、半径方向導体を主電極より離
した。An axial conductor and a radial conductor are interposed between the electrode rod and the coil portion, and the radial conductor is separated from the main electrode.
【００１１】[0011]
【作用】従来、コイル電極により発生する軸方向磁界は
半径方向に不均一分布(軸方向で強く、周辺部で弱い)し
ていたが、この発明における真空バルブによれば、主電
極裏面に磁性体を配置する等して、コイル電極による縦
方向磁界の軸方向成分を、主電極間に発生するアークに
対して効率良く均一になるように改善し、アークを均一
に拡散させて遮断性能を向上する。In the past, the axial magnetic field generated by the coil electrode was unevenly distributed in the radial direction (strong in the axial direction and weak in the peripheral portion). By arranging the body, etc., the axial direction component of the vertical magnetic field due to the coil electrodes is improved to be efficiently and uniformly with respect to the arc generated between the main electrodes, and the arc is diffused evenly to improve the breaking performance. improves.
【００１２】[0012]
実施例１．図１はこの発明の実施例１に係る真空バルブ
の電極構造を示す分解斜視図であり、電極棒１の先端部
１ａにはアーム型接続片１０が取り付けられており、こ
のアーム型接続片１０は中心部に上記先端部１ａに嵌合
されるリング部１０ｃを有し、このリング部１０ｃの外
周部には２本の半径方向外方に伸びるアーム部１０ａ,
ｂが形成されている。そして、このアーム型接続片１０
には２個の円弧状導体２０ａ,ｂから構成されたコイル
電極２０が固着されており、円弧状導体２０ａの一端に
上記アーム部１０ａが、円弧状導体２０ｂの他端に上記
アーム部１０ｂが接合されて、同一円周方向にコイル電
流が流れるよう構成されている。コイル電極２０の上部
には主電極３０が接合され、コイル電極の円弧状導体２
０ａの上面が主電極の円弧状コイル部３０ａの背面に当
設され、円弧状導体２０ｂの上面が円弧状コイル部３０
ｂ背面に当設されるよう構成されている。そしてこの主
電極の円弧状コイル部３０ａ,ｂは、基端部３０ｃを介
して主電極の中央部３０ｄに連絡されている。また、８
は高抵抗金属又は絶縁物から成る支持部材であり、その
棒状部８ａは電極棒１の支持穴１ｃに挿入固着され、円
板状の支持部８ｂは主電極の中央部３０ｄを背面より支
持している。４０はこの実施例にて採用する主電極３０
の背面に設置されたリング状の磁性体である。Example 1. 1 is an exploded perspective view showing an electrode structure of a vacuum valve according to a first embodiment of the present invention. An arm type connecting piece 10 is attached to a tip end portion 1a of an electrode rod 1, and the arm type connecting piece 10 is shown. Has a ring portion 10c fitted to the tip portion 1a at the center thereof, and two arm portions 10a extending outward in the radial direction are provided on the outer peripheral portion of the ring portion 10c.
b is formed. And, this arm type connecting piece 10
A coil electrode 20 composed of two arc-shaped conductors 20a, 20b is fixed to the arc-shaped conductor 20a. One end of the arc-shaped conductor 20a has the arm portion 10a, and the other end of the arc-shaped conductor 20b has the arm portion 10b. They are joined together so that a coil current flows in the same circumferential direction. The main electrode 30 is joined to the upper part of the coil electrode 20, and the arc-shaped conductor 2 of the coil electrode
0a is abutted on the back surface of the arc-shaped coil portion 30a of the main electrode, and the top surface of the arc-shaped conductor 20b is the arc-shaped coil portion 30a.
It is configured to be provided on the back surface of the b. The arcuate coil portions 30a and 30b of the main electrode are connected to the central portion 30d of the main electrode via the base end portion 30c. Also, 8
Is a supporting member made of a high resistance metal or an insulating material, the rod-shaped portion 8a of which is inserted and fixed in the supporting hole 1c of the electrode rod 1, and the disc-shaped supporting portion 8b supports the central portion 30d of the main electrode from the back surface. ing. 40 is the main electrode 30 used in this embodiment
It is a ring-shaped magnetic material installed on the back of the.
【００１３】次に、上記実施例の動作について説明す
る。図２ｂの平面図に示すように、主電極表面のＰ点で
アークが発生した場合、電流は電流経路Ｒに沿ってＰ点
から主電極中央部３０ｄを半径方向外方に進み、基端部
３０ｃを介してコイル部３０ａ,ｂに流れる。その後、
電流の大部分は主電極材料より低抵抗材で構成されたコ
イル電極の円弧状導体２０ａ,ｂに流れ込み、アーム部
１０ａ,ｂを介して電極棒１に流れる。そして、上記コ
イル電極の円弧状導体２０ａ,ｂを流れる円周方向電流
により、縦(軸)方向磁界が発生し、主電極間のアーク電
圧を低減すると共に、アークの集中を防ぐ。本実施例
は、上記コイル電極による縦方向磁界分布をより均一化
するのが狙いであり、アーク拡散部である主電極中央部
３０ｄの背面に磁性リング４０を配置することにより、
コイル電極３０により発生する縦磁界分布を図２ｃに示
すような磁界分布に修正し、特に主電極３０の周辺部の
磁界強度を強め、アーク拡散部全面(主電極)にわたり縦
方向磁界を均一化する。なお、図２ｃの実線は磁性リン
グ４０が存在する場合の縦磁界分布を示し、点線は存在
しない場合の縦磁界分布を示す。上記の結果、従来と比
較して、より効果的にアーク電圧の低減及びアークの集
中を防ぐことができる。Next, the operation of the above embodiment will be described. As shown in the plan view of FIG. 2b, when an arc is generated at the point P on the surface of the main electrode, the current travels along the current path R from the point P toward the main electrode central portion 30d in the radial direction outward, and the base end portion. It flows to the coil parts 30a and 30b via 30c. afterwards,
Most of the electric current flows into the arcuate conductors 20a, 20b of the coil electrode made of a material having a resistance lower than that of the main electrode material, and flows into the electrode rod 1 through the arm portions 10a, 10b. Then, a longitudinal (axial) magnetic field is generated by the circumferential current flowing through the arc-shaped conductors 20a, 20b of the coil electrodes, so that the arc voltage between the main electrodes is reduced and the arc concentration is prevented. In the present embodiment, the aim is to make the longitudinal magnetic field distribution by the coil electrodes more uniform, and by arranging the magnetic ring 40 on the back surface of the main electrode central portion 30d which is the arc diffusion portion,
The longitudinal magnetic field distribution generated by the coil electrode 30 is corrected to the magnetic field distribution as shown in FIG. 2c, and especially the magnetic field strength around the main electrode 30 is strengthened to make the longitudinal magnetic field uniform over the entire arc diffusion portion (main electrode). To do. 2c shows the vertical magnetic field distribution when the magnetic ring 40 is present, and the dotted line shows the vertical magnetic field distribution when it is not present. As a result of the above, it is possible to more effectively prevent the arc voltage from being reduced and the arc concentration to be prevented as compared with the conventional case.
【００１４】実施例２．実施例２では、図３に示すよう
に、実施例１と同様主電極３０のアーク拡散部の裏側に
磁性リング４０を設けると共に、主電極表面の中央部に
磁性リング４０の内径より小なる凹部５０を設け、磁性
リング４０により修正された縦方向磁界の均一化された
部分(図３ｃのＨ部分)にアークを発生させるようにした
ものである。即ち本実施例によれば、縦方向磁界が均一
な部分(図３ｃの磁界強度のＨ部分)にアークが均一に発
生することになり、より遮断性能が向上する。Example 2. In the second embodiment, as shown in FIG. 3, a magnetic ring 40 is provided on the back side of the arc diffusion portion of the main electrode 30 as in the first embodiment, and a recess smaller than the inner diameter of the magnetic ring 40 is provided in the center of the main electrode surface. 50 is provided so that an arc is generated in the uniformed portion of the longitudinal magnetic field corrected by the magnetic ring 40 (the portion H in FIG. 3C). That is, according to the present embodiment, the arc is uniformly generated in the portion where the vertical magnetic field is uniform (H portion of the magnetic field strength in FIG. 3C), and the interruption performance is further improved.
【００１５】実施例３．実施例３では、図４に示すよう
にアーク拡散部である主電極３０の裏側に、円形でその
厚みが半径方向に沿って中心から外側にかけて厚くなる
ような磁性体６０を設ける。その結果、本実施例による
縦磁界は、図４ｃに示すように主電極の周辺部から中央
部にかけて均一な分布として広がり、アークの拡散が均
一かつ効果的に行われる。なお、上記実施例１〜４では
磁性体自身に支持材８の機能を持たせることもできる。Example 3. In the third embodiment, as shown in FIG. 4, a circular magnetic body 60 is provided on the back side of the main electrode 30, which is an arc diffusion portion, and the thickness thereof increases from the center to the outside along the radial direction. As a result, the longitudinal magnetic field according to the present embodiment spreads as a uniform distribution from the peripheral portion to the central portion of the main electrode as shown in FIG. 4c, and the arc is uniformly and effectively diffused. In addition, in the above-mentioned Examples 1 to 4, the magnetic substance itself can be made to have the function of the support member 8.
【００１６】実施例４．上記実施例ではアーク拡散部で
ある主電極の裏側に磁性体を配置したものを示したが、
本実施例においては、図５に示すようにコイル電極を構
成する円弧状導体２１ａ,ｂの半径方向の厚みを主電極
側では厚く、主電極から遠い側ではうすくなるような構
造にする。即ち、図５ｄに示すようにコイル電極が軸方
向に同じ厚みを有する主電極間では、縦方向磁界が周辺
部で半径方向に膨らむ形となり、アークが均一とならな
い。そこで、本実施例のようにコイル電極の軸方向厚み
を傾斜させてやると、図５ｃに示すように主電極間で縦
方向(軸方向)に揃った磁力線が発生し、アークの拡散が
均一化される。Example 4. In the above embodiment, the magnetic material is arranged on the back side of the main electrode, which is the arc diffusion portion,
In the present embodiment, as shown in FIG. 5, the circular conductors 21a and 21b forming the coil electrode have a radial thickness that is thicker on the main electrode side and thinner on the side farther from the main electrode. That is, as shown in FIG. 5d, between the main electrodes in which the coil electrodes have the same thickness in the axial direction, the vertical magnetic field expands radially in the peripheral portion, and the arc is not uniform. Therefore, when the axial thickness of the coil electrode is inclined as in the present embodiment, magnetic field lines aligned in the vertical direction (axial direction) are generated between the main electrodes as shown in FIG. 5c, and the arc diffusion is uniform. Be converted.
【００１７】実施例５．本実施例では、図６に示すよう
に真空バルブ管１００内部のシールド１１０の外周部に
磁性体７０を設ける。この磁性体７０は、円筒状又は円
筒状であって縦方向に分割されたものを複数個用いたも
のでも良い。本実施例によっても、主電極間に発生する
軸方向の磁界の分布が均一化し、アークが拡散する。Embodiment 5. In this embodiment, as shown in FIG. 6, the magnetic body 70 is provided on the outer peripheral portion of the shield 110 inside the vacuum valve tube 100. The magnetic body 70 may have a cylindrical shape or a cylindrical shape and uses a plurality of pieces divided in the vertical direction. Also in this embodiment, the distribution of the magnetic field in the axial direction generated between the main electrodes is made uniform, and the arc is diffused.
【００１８】実施例６．本実施例では、電極棒１からコ
イル電極２０に電流を導く経路を半径方向導体８０と軸
方向導体９０で構成し、半径方向導体８０を主電極３０
からできるだけ遠くに設置する。即ち上記構成により、
半径方向導体８０に流れる電流により発生する磁界によ
って、主電極間の縦磁界に与える影響が少なくなり、縦
方向磁界が均一化する。Example 6. In the present embodiment, the path for guiding the current from the electrode rod 1 to the coil electrode 20 is constituted by the radial conductor 80 and the axial conductor 90, and the radial conductor 80 is used as the main conductor 30.
Install as far as possible from. That is, with the above configuration,
The magnetic field generated by the current flowing through the radial conductor 80 reduces the influence on the longitudinal magnetic field between the main electrodes, and makes the longitudinal magnetic field uniform.
【００１９】なお上記実施例ではコイル部として、コイ
ル導体２０ａ,ｂ及び主電極のコイル部３０ａ,ｂの電流
経路が２本の構成のものを示したが、１,３,４本あるい
はその他複数本の構成のものであっても同様の効果を有
する。また、縦方向磁界を発生させるコイル部を有する
構造なら、真空バルブ全般に適用できる。In the above embodiment, the coil conductors 20a, b and the coil portions 30a, b of the main electrodes have two current paths as the coil portion, but one, three, four or a plurality of other current paths are shown. The same effect can be obtained even with the book structure. Further, a structure having a coil portion for generating a vertical magnetic field can be applied to all vacuum valves.
【００２０】[0020]
【発明の効果】以上のように、この発明によれば主電極
裏面に磁性体を配置する等したので、コイル電極による
縦方向磁界の軸方向成分を、主電極間に発生するアーク
に対して効率良く均一になる様に修正することができ、
アークを均一に拡散させて遮断性能を向上する効果があ
る。As described above, according to the present invention, since the magnetic body is arranged on the back surface of the main electrode, the axial component of the longitudinal magnetic field due to the coil electrode is generated with respect to the arc generated between the main electrodes. It can be corrected so that it becomes more uniform,
It has the effect of uniformly spreading the arc and improving the breaking performance.
【図１】この発明の実施例１に係る真空バルブの電極構
造を示す分解斜視図である。FIG. 1 is an exploded perspective view showing an electrode structure of a vacuum valve according to a first embodiment of the present invention.
【図２】上記実施例１に係る電極構造の側面断面図、平
面図及び縦磁界分布図である。2A and 2B are a side sectional view, a plan view, and a longitudinal magnetic field distribution diagram of the electrode structure according to the first embodiment.
【図３】実施例２に係る電極構造の側面断面図、平面図
及び縦磁界分布図である。3A and 3B are a side sectional view, a plan view, and a longitudinal magnetic field distribution diagram of an electrode structure according to Example 2.
【図４】実施例３に係る電極構造の側面断面図、平面図
及び縦磁界分布図である。4A and 4B are a side sectional view, a plan view, and a longitudinal magnetic field distribution diagram of an electrode structure according to Example 3.
【図５】実施例４に係る電極構造の側面断面図、平面図
及び縦磁界分布図である。5A and 5B are a side sectional view, a plan view, and a longitudinal magnetic field distribution diagram of an electrode structure according to Example 4.
【図６】実施例５に係る真空バルブを示す概略断面図で
ある。FIG. 6 is a schematic sectional view showing a vacuum valve according to a fifth embodiment.
【図７】実施例６に係る電極構造を示す側面断面図及び
平面図である。7A and 7B are a side sectional view and a plan view showing an electrode structure according to a sixth embodiment.
【図８】従来の真空バルブの電極構造を示す分解斜視図
である。FIG. 8 is an exploded perspective view showing an electrode structure of a conventional vacuum valve.
【図９】従来の真空バルブの電極構造を示す平面図であ
る。FIG. 9 is a plan view showing an electrode structure of a conventional vacuum valve.
１ 電極棒 ８ 支持部材 １０ アーム型接続片 １０ａ,ｂ アーム部 １０ｃ リング部 ２０ コイル電極 ２０ａ,ｂ 円弧状導体 ２１ａ,ｂ 円弧状導体 ３０ 主電極 ３０ａ,ｂ 主電極のコイル部 ３０ｃ 基端部 ３０ｄ 主電極の中央部 ４０ 磁性体リング ５０ 主電極の凹部 ６０ 磁性体 ７０ 磁性体 ８０ 半径方向導体 ９０ 軸方向導体 １００ 真空バルブ管 １１０ シールド DESCRIPTION OF SYMBOLS 1 Electrode rod 8 Support member 10 Arm type connection piece 10a, b Arm part 10c Ring part 20 Coil electrode 20a, b Arc conductor 21a, b Arc conductor 30 Main electrode 30a, b Main electrode coil part 30c Base end part 30d Central part of the main electrode 40 Magnetic ring 50 Recessed part of the main electrode 60 Magnetic substance 70 Magnetic substance 80 Radial conductor 90 Axial conductor 100 Vacuum valve tube 110 Shield
Claims (6)
と、主電極間に縦方向の磁界を発生させるコイル部を備
えた真空バルブにおいて、上記少なくとも一の主電極の
背面にリング状の磁性体を配置したことを特徴とする真
空バルブ。1. A vacuum valve comprising a pair of main electrodes which can be freely contacted and separated from each other in a vacuum container, and a coil section for generating a longitudinal magnetic field between the main electrodes, wherein a ring is provided on the back surface of the at least one main electrode. A vacuum valve characterized by arranging a magnetic material.
を特徴とする請求項１記載の真空バルブ。2. The vacuum valve according to claim 1, wherein a recess is provided in a central portion of the main electrode.
と、主電極間に縦方向の磁界を発生させるコイル部を備
えた真空バルブにおいて、上記少なくとも一の主電極の
背面に、その半径方向の厚みが中心から外側にかけて厚
くなるような磁性体を配置したことを特徴とする真空バ
ルブ。3. A vacuum valve, comprising a pair of main electrodes which can be freely contacted and separated from each other, and a coil section which generates a vertical magnetic field between the main electrodes in a vacuum container, wherein a back surface of the at least one main electrode comprises: A vacuum valve in which a magnetic body is arranged such that its radial thickness increases from the center to the outside.
と、主電極間に縦方向の磁界を発生させるコイル部を備
えた真空バルブにおいて、上記コイル部の半径方向厚み
を、主電極側では厚く、主電極から遠い側ではうすく形
成したことを特徴とする真空バルブ。4. A vacuum valve comprising a pair of main electrodes, which can be freely contacted and separated from each other, and a coil section for generating a vertical magnetic field between the main electrodes in a vacuum container. A vacuum valve characterized by being thick on the electrode side and thin on the side far from the main electrode.
と、主電極間に縦方向の磁界を発生させるコイル部と、
上記主電極と上記真空容器の間に配置されたシールドを
備えた真空バルブにおいて、上記シールドの外周部に磁
性体を設けたことを特徴とする真空バルブ。5. A pair of main electrodes, which can be freely contacted and separated from each other, and a coil section for generating a vertical magnetic field between the main electrodes in a vacuum container.
A vacuum valve provided with a shield arranged between the main electrode and the vacuum container, wherein a magnetic material is provided on an outer peripheral portion of the shield.
と、主電極間に縦方向の磁界を発生させるコイル部とか
らなる電極、及び真空容器外側から上記電極へ電流を導
く電極棒を備えた真空バルブにおいて、電極棒とコイル
部の間に半径方向導体と軸方向導体を介装し、軸方向導
体によって半径方向導体を主電極より離したことを特徴
とする真空バルブ。6. An electrode comprising a pair of main electrodes that can be freely contacted and separated from each other in a vacuum vessel, and a coil section that generates a vertical magnetic field between the main electrodes, and an electrode that guides a current from the outside of the vacuum vessel to the electrode. A vacuum valve provided with a rod, characterized in that a radial conductor and an axial conductor are interposed between an electrode rod and a coil portion, and the radial conductor is separated from the main electrode by the axial conductor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4326091A JP2743955B2 (en) | 1992-11-10 | 1992-11-10 | Vacuum valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4326091A JP2743955B2 (en) | 1992-11-10 | 1992-11-10 | Vacuum valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06150786A true JPH06150786A (en) | 1994-05-31 |
| JP2743955B2 JP2743955B2 (en) | 1998-04-28 |
Family
ID=18184004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4326091A Expired - Lifetime JP2743955B2 (en) | 1992-11-10 | 1992-11-10 | Vacuum valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2743955B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0917297A (en) * | 1995-04-28 | 1997-01-17 | Toshiba Corp | Vacuum valve |
| JP2008262772A (en) * | 2007-04-11 | 2008-10-30 | Toshiba Corp | Vacuum valve |
| JP2010129337A (en) * | 2008-11-27 | 2010-06-10 | Toshiba Corp | Vacuum valve |
| JP2014049353A (en) * | 2012-08-31 | 2014-03-17 | Toshiba Corp | Solid insulation switch gear and vacuum valve for solid insulation switch gear |
| CN105023798A (en) * | 2015-07-08 | 2015-11-04 | 天津平高智能电气有限公司 | Vacuum arc-extinguishing chamber, coil-type contact element and current coil |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55146823A (en) * | 1979-05-04 | 1980-11-15 | Hitachi Ltd | Electrode for vacuum breaker |
| JPS58188021A (en) * | 1982-04-27 | 1983-11-02 | 株式会社明電舎 | Vacuum interrupter |
| JPS60200420A (en) * | 1984-03-26 | 1985-10-09 | 株式会社日立製作所 | Vacuum breaker |
| JPS6168819A (en) * | 1984-09-12 | 1986-04-09 | 株式会社東芝 | Vacuum breaker |
| JPS61195528A (en) * | 1985-02-22 | 1986-08-29 | 三菱電機株式会社 | Electrode construction for vacuum breaker |
| JPS62206726A (en) * | 1986-03-05 | 1987-09-11 | 三菱電機株式会社 | Vacuum breaker |
| JPS6471029A (en) * | 1987-08-26 | 1989-03-16 | Sachsenwerk Ag | Contactor for vacuum switch |
-
1992
- 1992-11-10 JP JP4326091A patent/JP2743955B2/en not_active Expired - Lifetime
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55146823A (en) * | 1979-05-04 | 1980-11-15 | Hitachi Ltd | Electrode for vacuum breaker |
| JPS58188021A (en) * | 1982-04-27 | 1983-11-02 | 株式会社明電舎 | Vacuum interrupter |
| JPS60200420A (en) * | 1984-03-26 | 1985-10-09 | 株式会社日立製作所 | Vacuum breaker |
| JPS6168819A (en) * | 1984-09-12 | 1986-04-09 | 株式会社東芝 | Vacuum breaker |
| JPS61195528A (en) * | 1985-02-22 | 1986-08-29 | 三菱電機株式会社 | Electrode construction for vacuum breaker |
| JPS62206726A (en) * | 1986-03-05 | 1987-09-11 | 三菱電機株式会社 | Vacuum breaker |
| JPS6471029A (en) * | 1987-08-26 | 1989-03-16 | Sachsenwerk Ag | Contactor for vacuum switch |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0917297A (en) * | 1995-04-28 | 1997-01-17 | Toshiba Corp | Vacuum valve |
| JP2008262772A (en) * | 2007-04-11 | 2008-10-30 | Toshiba Corp | Vacuum valve |
| JP2010129337A (en) * | 2008-11-27 | 2010-06-10 | Toshiba Corp | Vacuum valve |
| JP2014049353A (en) * | 2012-08-31 | 2014-03-17 | Toshiba Corp | Solid insulation switch gear and vacuum valve for solid insulation switch gear |
| CN105023798A (en) * | 2015-07-08 | 2015-11-04 | 天津平高智能电气有限公司 | Vacuum arc-extinguishing chamber, coil-type contact element and current coil |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2743955B2 (en) | 1998-04-28 |
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