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    Vacuum switch and method of manufacturing the same
    1.
    发明授权
    Vacuum switch and method of manufacturing the same 失效
    真空开关及其制造方法

    公开(公告)号：US4546222A

    公开(公告)日：1985-10-08

    申请号：US584903

    申请日：1984-02-29

    申请人： Ryuji Watanabe ,  Akira Wada ,  Hisashi Ando ,  Seiki Shimizu ,  Yukio Kurosawa ,  Kiyoji Iwashita

    发明人： Ryuji Watanabe ,  Akira Wada ,  Hisashi Ando ,  Seiki Shimizu ,  Yukio Kurosawa ,  Kiyoji Iwashita

    IPC分类号： H01H33/66 ,  H01H1/02 ,  H01H33/664

    CPC分类号： H01H33/6644 ,  H01H1/0203

    摘要： Disclosed is a vacuum switch having a container and a pair of contact electrodes, and a method of manufacturing the same, in which at least one of the contact electrodes is constituted by a member made up of a skeleton containing cobalt as its principal component with pores into which a copper alloy containing copper as its principal component, silver, and a low melting point and high vapor pressure element having substantially no or very low solid-solubility with respect to the copper at a room temperature is impregnated.

    摘要翻译： 公开了一种具有容器和一对接触电极的真空开关及其制造方法，其中至少一个接触电极由包含钴作为主要成分的骨架构成的构件构成，具有孔 浸渍含有铜作为其主要成分的铜合金，银，以及在室温下相对于铜基本上没有或非常低的固溶度的低熔点和高蒸气压元素。

    Vacuum interrupter
    2.
    发明授权
    Vacuum interrupter 失效
    真空灭弧室

    公开(公告)号：US4427857A

    公开(公告)日：1984-01-24

    申请号：US319985

    申请日：1981-11-10

    申请人： Nobuo Abe ,  Hiroyuki Sugawara ,  Yukio Kurosawa ,  Akira Wada ,  Kiyoji Iwashita

    发明人： Nobuo Abe ,  Hiroyuki Sugawara ,  Yukio Kurosawa ,  Akira Wada ,  Kiyoji Iwashita

    IPC分类号： H01H33/66 ,  H01H33/664

    CPC分类号： H01H33/6644 ,  H01H33/6643

    摘要： A vacuum interrupter of parallel magnetic field electrode type comprising a pair of separatable arc electrodes disposed within a vacuum vessel, with each being provided on its back side with a conductive rod extending outwardly of the vacuum vessel. Coil electrodes are electrically connected between the associated arc electrode and rod for applying parallel magnetic fields to arc, and slits are formed in the arc electrodes for suppressing eddy currents of the arc electrodes resulting from the parallel fields. A reinforcement member of an electric conductivity higher than a main surface portion of the arc electrode is provided on the back side of the arc electrode opposite to said main surface portion so that the resulting arc current flows uniformly through the reinforcement member so that a higher interruption efficiency can be obtained for the vacuum interrupter.

    摘要翻译： 一种并联磁场电极型真空断路器，包括设置在真空容器内的一对可分离的电弧电极，每个在其后侧设置有一个向该真空容器向外延伸的导电棒。 线圈电极电连接在相关联的电弧电极和棒之间，用于将平行磁场施加到电弧上，并且在电弧电极中形成狭缝以抑制由平行场引起的电弧电极的涡流。 在电弧电极的与所述主表面部分相对的背面上设置有比电弧电极的主表面部分高的电导率的加强部件，使得所产生的电弧电流均匀地流过加强部件，使得较高的中断 可以获得真空断路器的效率。

    Vacuum interrupter
    3.
    发明授权
    Vacuum interrupter 失效
    真空灭弧室

    公开(公告)号：US4430536A

    公开(公告)日：1984-02-07

    申请号：US389969

    申请日：1982-06-18

    申请人： Yukio Kurosawa ,  Akira Wada ,  Kiyoji Iwashita ,  Hideaki Tsuda

    发明人： Yukio Kurosawa ,  Akira Wada ,  Kiyoji Iwashita ,  Hideaki Tsuda

    IPC分类号： H01H33/66 ,  H01H33/664

    CPC分类号： H01H33/6644

    摘要： A vacuum interrupter comprises a vacuum vessel, at least a pair of electrical conductor rods extending from interior to exterior of the vacuum vessel, and at least a pair of separable composite electrodes respectively connected to the tip of the electrical conductor rods. Each of the composite electrodes has a main electrode, a parallel magnetic field generator for generating a parallel magnetic field which acts on an arc created when one main electrode is separated from the other, and a magnetic field suppressor of high electrical conductivity embedded in a central portion of the main electrode for partly cancelling the parallel magnetic field. In the vacuum interrupter, when the parallel magnetic field permeates through the magnetic field suppressor, eddy current flow is caused therein. A magnetic field due to the eddy current has a polarity opposite to that of the parallel magentic field and partly cancels the parallel magnetic field. Intensity of the parallel magnetic field then becomes smaller at the central portion than that at the other peripheral portion, and the arc tends to shift from the magnetic field suppressor to the outer peripheral portion, thereby preventing fusion damage of the magnetic field suppressor.

    摘要翻译： 真空断路器包括真空容器，至少一对从真空容器的内部延伸到外部的电导体棒，以及分别连接到电导体棒的尖端的至少一对可分离的复合电极。 每个复合电极具有主电极，平行磁场发生器，用于产生平行磁场，其作用于当一个主电极彼此分离时产生的电弧，以及嵌入中心的高导电性的磁场抑制器 用于部分地消除平行磁场的主电极部分。 在真空断路器中，当并联磁场渗透通过磁场抑制器时，在其中引起涡流。 由于涡流引起的磁场具有与平行磁场相反的极性，并且部分地抵消了平行磁场。 平行磁场的强度在中心部分的强度比其他周边部分的强度变小，电弧趋于从磁场抑制器向外周部分移动，从而防止磁场抑制器的熔断。

    Vacuum interrupter
    4.
    发明授权
    Vacuum interrupter 失效
    真空灭弧室

    公开(公告)号：US4704506A

    公开(公告)日：1987-11-03

    申请号：US881961

    申请日：1986-07-03

    申请人： Yukio Kurosawa ,  Kiyoji Iwashita ,  Morihisa Matumoto ,  Takanao Kurasawa ,  Syunkichi Endo

    发明人： Yukio Kurosawa ,  Kiyoji Iwashita ,  Morihisa Matumoto ,  Takanao Kurasawa ,  Syunkichi Endo

    IPC分类号： H01H33/66 ,  H01H33/664

    CPC分类号： H01H33/6642

    摘要： A cylindrical coil electrode incorporated in a vacuum interrupter comprises a cylindrical body having an opening at one end thereof, two electrical connections provided between the edge surface of the opening of the cylindrical body and a main electrode, two arcuate slits formed on the cylindrical body between the two electrical connections, two arcuate current paths formed in the cylindrical body by the arcuate slits beginning as a respective electrical connection and ending at a rod, and two current blocking slits formed on the cylindrical body at positions where one end of each of the current paths laps the other end of the other current paths. Because of the above structure, one-turn current flows throughout the current paths so that a uniform axial magnetic field can be applied to the main electrode, and an arc current can be uniformly distributed over the entire surface of the main electrode, thereby improving the current interruption performance of the vacuum interrupter.

    摘要翻译： 结合在真空断路器中的圆筒形线圈电极包括在其一端具有开口的圆柱形主体，设置在圆柱体的开口的边缘表面和主电极之间的两个电连接，形成在圆柱体上的两个弧形狭缝 两个电连接，通过由相应的电连接开始并终止于杆的弓形狭缝形成在圆柱形主体中的两个弧形电流路径，以及形成在圆柱体上的两个电流阻塞狭缝，其中每个电流的一端 路径使其他当前路径的另一端相交。 由于上述结构，单向电流流过电流路径，从而可以对主电极施加均匀的轴向磁场，并且电弧电流可以均匀分布在主电极的整个表面上，从而改善 真空断路器的电流中断性能。

    Vacuum circuit breaker
    5.
    发明授权
    Vacuum circuit breaker 失效
    真空断路器

    公开(公告)号：US4695689A

    公开(公告)日：1987-09-22

    申请号：US799484

    申请日：1985-11-19

    申请人： Yukio Kurosawa ,  Kiyoji Iwashita

    发明人： Yukio Kurosawa ,  Kiyoji Iwashita

    IPC分类号： H01H33/66 ,  H01H33/664

    CPC分类号： H01H33/664 ,  H01H2033/6648 ,  H01H33/6642

    摘要： A pair of separable disc shaped electrodes for a vacuum circuit breaker, each including an annular contact part formed around the outer circumferential portion of the electrode on the facing surface to the other electrode, a round recessed part formed on the inner portion thereof and surrounded by the annular contact part, an elastic support plate placed on the non-facing surface thereof and three straight grooves extending from the outer periphery of the annular contact part to the inner periphery thereof so that arcing on the round recessed part is prevented during a circuit breaking operation of the vacuum circuit breaker.

    摘要翻译： 一种用于真空断路器的可分离盘状电极，每个包括形成在与其相对的电极的相对表面上的电极的外周部分周围的环形接触部分，形成在其内部的圆形凹部，并被 环形接触部分，放置在其不相对表面上的弹性支撑板和从环形接触部分的外周延伸到其内周边的三个直槽，使得在断路期间防止圆形凹部上的电弧 真空断路器的运行。

    Method for making vacuum circuit breaker electrodes
    6.
    发明授权
    Method for making vacuum circuit breaker electrodes 失效
    制造真空断路器电极的方法

    公开(公告)号：US4836978A

    公开(公告)日：1989-06-06

    申请号：US92138

    申请日：1987-09-02

    申请人： Ryuji Watanabe ,  Hisashi Andoh ,  Kiyoji Iwashita ,  Kinko Shimizu

    发明人： Ryuji Watanabe ,  Hisashi Andoh ,  Kiyoji Iwashita ,  Kinko Shimizu

    IPC分类号： H01H33/66 ,  B22F3/15 ,  C22C1/04 ,  H01H1/02 ,  H01H11/04

    CPC分类号： H01H11/048 ,  B22F3/15 ,  C22C1/045 ,  H01H1/0206

    摘要： A production method of a vacuum circuit breaker electrode comprises the steps of mixing conductive metal powder, and refractory material powder with a higher melting point than said conductive metal powder, compacting the resultant mixture to form a compact, presintering the compact in a atmosphere of high purity hydrogen, sealing a presintered body in a capsule while exhausting, heating and degassing, and subjecting the sealed capsule to hot isostatic pressing treatment. The conductive metal powder is one or both of Cu and Ag. The hot isostatic pressing treatment is effected at a temperature higher than a melting point of the conductive metal so that the presintered body is sintered under liquid phase, and a part of molten conductive metal component is seeped out on a sintered body surface.

    摘要翻译： 真空断路器电极的制造方法包括以下步骤：将导电金属粉末和具有比所述导电金属粉末更高的熔点的耐火材料粉末混合，压制所得混合物以形成紧凑型，在高温气氛中预烧结 纯度的氢气，将预烧结体密封在胶囊中，同时排气，加热和脱气，以及对密封的胶囊进行热等静压处理。 导电金属粉末是Cu和Ag中的一种或两种。 热等静压处理在高于导电金属的熔点的温度下进行，使得预烧结体在液相下烧结，并且一部分熔融的导电金属组分在烧结体表面上渗出。

    Vacuum circuit breaker
    7.
    发明授权
    Vacuum circuit breaker 失效
    真空断路器

    公开(公告)号：US4547639A

    公开(公告)日：1985-10-15

    申请号：US274679

    申请日：1981-06-17

    申请人： Ryuji Watanabe ,  Kiyoji Iwashita ,  Sadami Tomita ,  Keiichi Kuniya ,  Hideaki Tsuda

    发明人： Ryuji Watanabe ,  Kiyoji Iwashita ,  Sadami Tomita ,  Keiichi Kuniya ,  Hideaki Tsuda

    IPC分类号： H01H33/66 ,  H01H1/02 ,  B22F3/00

    CPC分类号： H01H1/0203 ,  Y10T428/1216

    摘要： A vacuum circuit breaker comprising a vacuum vessel and a pair of electrodes disposed in the vessel, which is superior in chopping current characteristic, at least a contact of at least one of the electrodes being made of a member having a skeleton of an iron group element, pores in which skeleton are impregnated with at least one kind selected from a group consisting of silver; an alloy of Ag and at least one of Te, Se, Bi, Pb, Tl, In, Cd, Sn and Sb; and the intermetallic compound of Ag, the breaker having rated voltage of 3.6 to 36 KV and rated breaking currents of 8 to 60 KA.

    摘要翻译： 一种真空断路器，包括真空容器和设置在容器中的一对电极，其在斩波电流特性方面优于至少一个电极的至少一个触点由具有铁族元素骨架的构件 用选自银的至少一种浸渍骨架的孔; Ag和Te，Se，Bi，Pb，Tl，In，Cd，Sn和Sb中的至少一种的合金; 和Ag的金属间化合物，断路器的额定电压为3.6至36KV，额定分断电流为8至60KA。