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    Vacuum interrupter
    1.
    发明授权
    Vacuum interrupter 失效
    真空灭弧室

    公开(公告)号：US4450327A

    公开(公告)日：1984-05-22

    申请号：US283866

    申请日：1981-07-16

    Applicant: Hifumi Yanagisawa ,  Junichi Warabi ,  Yoshiyuki Kashiwagi

    Inventor： Hifumi Yanagisawa ,  Junichi Warabi ,  Yoshiyuki Kashiwagi

    IPC: H01H33/66 ,  H01H33/662 ,  H01H33/00

    CPC classification number: H01H33/66207 ,  H01H2033/66215 ,  H01H2033/66223 ,  H01H2033/66276 ,  H01H2033/66292 ,  H01H33/66238 ,  H01H33/66261

    Abstract: An evacuated envelope includes a cylindrical housing made of a metallic material, disc-shaped upper and lower end plates made of ceramic and stationary and movable contact rods. The envelope of the vacuum interrupter is manufactured by brazing the end plates to the housing by using a sealing member made of a hermetically deformable metallic material which deforms by thermal stress generated during a cooling process after hermetic brazing. Sealing means of the envelope is provided with surface-to-surface sealing between the seal member and the cylindrical metallic housing or the disc-shaped end plate in order to enhance the sealing performance. The envelope is hermetically sealed by deforming the sealing member after brazing the sealing member to the housing in order to further enhance the sealing performance. The sealing member further comprises a stress absorbing means provided with a curved portion for absorbing thermal and mechanical stress.

    Abstract translation: 真空外壳包括由金属材料制成的圆柱形壳体，由陶瓷和固定和可动接触杆制成的盘形上下端板。 真空断路器的外壳是通过使用由气密性变形的金属材料制成的密封构件将端板钎焊到壳体上制造的，该密封构件通过在密封钎焊之后的冷却过程中产生的热应力而变形。 封套的密封装置在密封构件和圆柱形金属壳体或盘形端板之间具有表面到表面密封，以增强密封性能。 为了进一步提高密封性能，将密封构件钎焊到壳体之后，通过使密封构件变形来使密封件密封。 密封构件还包括设有弯曲部分以吸收热和机械应力的应力吸收装置。

    Vacuum circuit interrupter
    2.
    发明授权
    Vacuum circuit interrupter 失效
    真空断路器

    公开(公告)号：US4481390A

    公开(公告)日：1984-11-06

    申请号：US279302

    申请日：1981-06-30

    Applicant: Yoshiyuki Kashiwagi ,  Yutaka Kashimoto ,  Shinzo Sakuma ,  Junichi Warabi ,  Yukio Kobari ,  Hidemi Kawaguchi

    Inventor： Yoshiyuki Kashiwagi ,  Yutaka Kashimoto ,  Shinzo Sakuma ,  Junichi Warabi ,  Yukio Kobari ,  Hidemi Kawaguchi

    IPC: H01H33/66 ,  H01H33/662 ,  H01H33/00

    CPC classification number: H01H33/66207 ,  H01H33/66261 ,  H01H2033/66223 ,  H01H2033/66276 ,  H01H2033/66292 ,  H01H33/66238

    Abstract: A vacuum circuit interrupter includes a cylinder made of a metal relatively easy to deform plastically, and first and second insulating disks closing the ends of the metallic cylinder to form therewith an evacuated envelope. A stationary rod enters the envelope through the first disk in such a manner as to provide a seal therewith. A movable conductive rod movably enters the envelope through the second disk. A bellows is fixed at its one end to the movable rod and at its other end to the second disk in such a manner as to provide a seal about the movable rod to allow for movement thereof without impairing the vacuum inside the envelope. Stationary and movable electrodes are connected to the stationary and movable rods respectively in such a manner as to engage and disengage with each other according to the movement of the movable rod.

    Abstract translation: 真空断路器包括由相对容易变形的金属制成的圆筒，以及封闭金属圆筒端部以形成真空外壳的第一和第二绝缘盘。 固定杆以这样的方式通过第一盘进入封套，以便与其一起提供密封。 可移动导电杆可移动地通过第二盘进入封套。 波纹管的一端固定在可动杆上，另一端固定在第二盘上，以便提供围绕活动杆的密封，以允许其移动而不损害外壳内的真空。 固定和可移动电极分别以与活动杆的运动相互啮合和分离的方式分别连接到固定杆和活动杆。

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

    公开(公告)号：US4471184A

    公开(公告)日：1984-09-11

    申请号：US432380

    申请日：1982-09-30

    Applicant: Takamitsu Sano ,  Yoshiyuki Kashiwagi ,  Hifumi Yanagisawa

    Inventor： Takamitsu Sano ,  Yoshiyuki Kashiwagi ,  Hifumi Yanagisawa

    IPC: H01H33/66 ,  H01H1/02 ,  H01H33/00

    CPC classification number: H01H1/0203

    Abstract: A vacuum interrupter has a capacity of breaking high voltage and large electric current, and excellent anti-welding characteristics, and prevents generation of harmful surges by current chopping and reignitions, and particularly prevents surges by multi-reignition and three-phase simultaneous breaking caused by the multi-reignition. The vacuum interrupter comprises a pair of electrodes (5a, 6a) which can close or separate from each other within an electric insulating hermetic vacuum vessel (4), each electrode (5a, 6a, 15 and 28) is made of a metallic material of a mean vapor pressure, the boiling point of the metallic material being 2700 to 3300K. (2427.degree. to 3027.degree. C.), such as, for example, chromium, or a chromium alloy including a content of more than 90% chromium.

    Abstract translation: 真空断路器具有断开高电压和大电流的能力，并且具有优良的抗焊接特性，并且防止由于电流斩波和重新点火而产生有害的浪涌，特别是通过多次重新点火和三相同时断开引起的浪涌 多重点。 真空断路器包括一对可在电绝缘密封真空容器（4）内彼此关闭或分离的电极（5a，6a），每个电极（5a，6a，15和28）由金属材料 平均蒸气压，金属材料的沸点为2700至3300K。 （2427℃至3027℃），例如铬，或含有大于90％铬含量的铬合金。

    Contact electrode material for vacuum interrupter and method of manufacturing the same
    5.
    发明授权
    Contact electrode material for vacuum interrupter and method of manufacturing the same 失效
    真空灭弧室接触极材料及其制造方法

    公开(公告)号：US4686338A

    公开(公告)日：1987-08-11

    申请号：US698865

    申请日：1985-02-06

    Applicant: Yoshiyuki Kashiwagi ,  Yasushi Noda ,  Kaoru Kitakizaki

    Inventor： Yoshiyuki Kashiwagi ,  Yasushi Noda ,  Kaoru Kitakizaki

    IPC: C22C32/00 ,  H01H1/02 ,  B22F3/26 ,  C22C29/06 ,  H01H33/66

    CPC classification number: H01H1/0206 ,  C22C32/0052

    Abstract: A novel contact electrode material for vacuum interrupters is disclosed, by which the chopping current value inherent in contact material can be reduced so that it is possible to stably interrupt small lagging current due to inductive loads without generating surge voltages. The material is equivalent or superior to the conventional Cu-0.5Bi material in large current interrupting capability and dielectric strength. The material consists essentially of copper, chromium, iron or molybdenum and chromium carbide or molybdenum carbide. The metallographical microstructure is such that copper is infiltrated into a porous matrix formed by mutually bonding chromium powder, iron or molybdenum powder and metal carbide powder in diffusion state. In its manufacturing process, firstly copper is placed onto a powder mixture of chromium, iron or molybdenum, and chromium carbide or molybdenum carbide, and then the copper and the powder mixture is heated within a nonoxidizing atmosphere at a first temperature lower than the copper melting point and thereafter again at a second temperature higher than the copper melting point.

    Abstract translation: 公开了一种用于真空断路器的新型接触电极材料，通过该接触电极材料可以减小接触材料固有的斩波电流值，从而可以稳定地中断由于感性负载而导致的滞后电流，而不产生浪涌电压。 该材料相当于或优于传统的Cu-0.5Bi材料，具有大的电流中断能力和介电强度。 该材料基本上由铜，铬，铁或钼和碳化铬或碳化钼组成。 金相显微结构是铜渗透到通过相互键合铬粉末，铁或钼粉末和扩散状态的金属碳化物粉末形成的多孔基体中。 在其制造过程中，首先将铜放置在铬，铁或钼的粉末混合物和碳化铬或碳化钼上，然后铜和粉末混合物在非氧化气氛中在低于铜熔融的第一温度下加热 然后再次高于铜熔点的第二温度。

    Vacuum interrupter
    6.
    发明授权
    Vacuum interrupter 失效
    真空灭弧室

    公开(公告)号：US4584445A

    公开(公告)日：1986-04-22

    申请号：US589295

    申请日：1984-03-14

    Applicant: Yoshiyuki Kashiwagi ,  Yasushi Noda ,  Kaoru Kitakizaki

    Inventor： Yoshiyuki Kashiwagi ,  Yasushi Noda ,  Kaoru Kitakizaki

    IPC: H01H1/02 ,  H01H11/04 ,  H01H33/664 ,  H01H33/66

    CPC classification number: H01H33/6644 ,  H01H1/0203 ,  H01H11/04 ,  Y10T29/49206

    Abstract: A vacuum interrupter of more improved large current interrupting capability and dielectric strength is disclosed. The interrupter has a pair of separable contact-electrodes (13, 24), a vacuum envelope (4) generally electrically insulating and enclosing the pair therewithin, a contact-making portion (19) of 20 to 60% IACS electrical conductivity being a part of one contact-electrode (13) of the pair and being into and out of engagement with the other contact-electrode (24) of the pair, an arc-diffusing portion (20) of 2 to 30% IACS electrical conductivity being the other part of the one contact-electrode (13) and being electrically and mechanically connected to the contact-making portion (19) so as to be spaced from the other contact-electrode (24) when the contact-electrodes (13, 24) are into engagement, and means (14, 15) for applying an axial magnetic field in parallel to an arc established between the contact-electrodes (13, 24) when separated.

    Abstract translation: 公开了一种具有更大改善的大电流中断能力和介电强度的真空断路器。 断路器具有一对可分离的接触电极（13,24），一个通常电绝缘并在其内包围的真空外壳（4），具有20至60％IACS导电性的接触部分（19）是部分 的一对接触电极（13），与该对的另一个接触电极（24）进入和离开接合，2〜30％的IACS电导率的电弧扩散部分（20）是另一个 所述一个接触电极（13）的一部分并且当所述接触电极（13,24）是接触电极（13,24）时，与所述接触部分（19）电连接并机械连接以与所述另一个接触电极（24）间隔开 以及用于当分离时施加平行于在接触电极（13,24）之间建立的电弧的轴向磁场的装置（14,15）。

    Vacuum interrupter
    8.
    发明授权
    Vacuum interrupter 失效
    真空灭弧室

    公开(公告)号：US4588879A

    公开(公告)日：1986-05-13

    申请号：US554122

    申请日：1983-11-21

    Applicant: Yasushi Noda ,  Yoshiyuki Kashiwagi

    Inventor： Yasushi Noda ,  Yoshiyuki Kashiwagi

    IPC: H01H33/664 ,  H01H33/66

    CPC classification number: H01H33/6644

    Abstract: A vacuum interrupter enhances current interruption capability for large current at high voltage. The interrupter includes a coil-electrode creating an axial magnetic field parallel to the direction of arc current passing across an interelectrode gap. The coil-electrode includes a radially extending web spaced from a contact-electrode of the interrupter, one end of the web electrically connected to a contact-electrode lead rod, a partially turning segment having one end connected through an electrical connector to the other end of the web, another web and a segment made of a material with electrical conductivity higher than the contact-electrode and attached to the back-surface of the contact-electrode. The other web electrically connects the other end of the segment to a contact-making portion of the contact-electrode, the one and other webs alternating at angular intervals. Current passes through the one and other webs in opposite directions. Current paths are shortened in the contact-electrode. The coil-electrode intensifies the axial magnetic field due to the arrangements of the webs.

    Abstract translation: 真空断路器提高了高电压下大电流的电流中断能力。 断路器包括线圈电极，其产生平行于穿过电极间间隙的电弧电流方向的轴向磁场。 线圈电极包括与断路器的接触电极隔开的径向延伸的腹板，腹板的一端电连接到接触电极引线杆，部分转动部分的一端通过电连接器连接到另一端 的纤维网，另一个纤维网和由导电率高于接触电极并附着到接触电极的背面的材料制成的片段。 另一个网将该段的另一端电连接到接触电极的接触部分，一个和另一个腹板以角度间隔交替。 电流以相反的方向通过一个和另一个网。 接触电极中的电流通路被缩短。 由于腹板的布置，线圈电极增强了轴向磁场。

    Contact of vacuum interrupter and manufacturing process therefor
    9.
    发明授权
    Contact of vacuum interrupter and manufacturing process therefor 失效
    真空灭弧室的接触及其制造工艺

    公开(公告)号：US4554425A

    公开(公告)日：1985-11-19

    申请号：US648362

    申请日：1984-09-07

    Applicant: Yoshiyuki Kashiwagi ,  Yasushi Noda ,  Kaoru Kitakizaki

    Inventor： Yoshiyuki Kashiwagi ,  Yasushi Noda ,  Kaoru Kitakizaki

    IPC: C22C1/05 ,  C22C9/00 ,  C22C27/06 ,  H01H1/02 ,  H01H33/66

    CPC classification number: H01H1/0206

    Abstract: A contact of a vacuum interrupter and a manufacturing process therefor are disclosed. The contact can greatly reduce the chopping current of the interrupter, can greatly increase the dielectric strength thereof and can improve the large- and small-current interrupting capabilities thereof. The contact is made of a material containing 29 to 74 weight % copper, 15 to 60 weight % chromium, 10 to 35 weight % iron, 0.5 to 15 weight % carbon and 0.5 to 15 weight % silicon. The process contains the steps of producing a porous matrix by sintering a mixture of all of the elements except copper under a nonoxidizing atmosphere, impregnating the matrix with copper and machining the resultant material.

    Abstract translation: 公开了一种真空灭弧室的接触及其制造方法。 该接触可以大大降低断路器的斩波电流，可以大大提高其绝缘强度，并可以提高其大电流和小电流中断能力。 该接触由含有29至74重量％铜，15至60重量％铬，10至35重量％铁，0.5至15重量％碳和0.5至15重量％硅的材料制成。 该方法包括通过在非氧化气氛下烧结除铜以外的所有元素的混合物来生产多孔基体的步骤，用铜浸渍基质并加工所得材料。

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