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74 条记录 (耗时 0.017 秒)

    Bellows and vacuum switch using the bellows
    3.
    发明公开
    Bellows and vacuum switch using the bellows 有权
    波纹管和真空开关使用波纹管

    公开(公告)号：EP0905731A2

    公开(公告)日：1999-03-31

    申请号：EP98117852.8

    申请日：1998-09-21

    申请人： Hitachi, Ltd. ,  Kuze Bellows Kogyosho Co, Ltd.

    发明人： Morita, Ayumu ,  Tanimizu, Toru ,  Horikoshi, Toshio ,  Yotsumoto, Yoshiharu ,  Hashimoto, Takanori

    IPC分类号： H01H33/66

    CPC分类号： H01H33/66238 ,  H01H31/003 ,  H01H33/6664

    摘要： A bellows of which one end portion is fixed to a movable lever 35 passing through a vessel wall and swinging and the other end portion is fixed to the vessel wall 3 is characterized in that the spring constant of the above-mentioned bellows at a central portion in an expansion direction is made smaller than that at the end portions in the expansion direction. The bellows can damp stress concentration at end portions and improve the life, without enlarging the size of the bellows.
    And a vacuum switch has the bellows used therein.

    摘要翻译： 一个波纹管，其一个端部固定在通过容器壁并摆动的可动杆35上，另一个端部固定在容器壁3上，其特征在于，上述波纹管的弹簧常数在中央部分 在膨胀方向上的膨胀方向上的膨胀方向的宽度小于在膨胀方向的端部处的膨胀方向。 波纹管可以抑制端部的应力集中，并延长使用寿命，而不会增大波纹管的尺寸。 并且真空开关具有其中使用的波纹管。

    Electrical contacts, manufacturing method thereof, electrode, vacuum interrupter, and electric power switches
    6.
    发明公开
    Electrical contacts, manufacturing method thereof, electrode, vacuum interrupter, and electric power switches 审中-公开
    电接触，其制造方法，电极，真空开关和电源开关

    公开(公告)号：EP2709132A3

    公开(公告)日：2014-06-18

    申请号：EP13181519.3

    申请日：2013-08-23

    申请人： Hitachi, Ltd.

    发明人： Kikuchi, Shigeru ,  Morita, Ayumu ,  Tsuchiya, Kenji ,  Yabu, Masato ,  Nakazawa, Akio

    IPC分类号： H01H1/02 ,  H01H33/664

    CPC分类号： H01H1/025 ,  H01H1/0206 ,  H01H1/029 ,  H01H33/6643

    摘要： According to the present invention an electrical contact (1) is provided, which is cheap, has an excellent workability and maintains the effect of chopping current reduction. The electrical contact comprises a Cu matrix, and compounds Cu and low melting point metal which are dispersed in the Cu matrix, wherein the vapor pressure of the low melting point metal is more than 10 5 Pa at 1000 °C, the compound has a stoichiometric ratio which is the value of the low melting metal / Cu which is greater than 0.5, and the longitudinal direction of the compound is oriented at an angle of 90 ° ± 10 ° to the contact surfaces. The method of manufacturing the electrical contact comprises the steps of stretching the mixture of the Cu matrix with the compounds by 70-85% while heating, using the surfaces of the electrical contact as a contact.

    Vacuum switch
    8.
    发明公开
    Vacuum switch 有权
    Vakuumschalter

    公开(公告)号：EP2157593A1

    公开(公告)日：2010-02-24

    申请号：EP09010136.1

    申请日：2009-08-05

    申请人： Hitachi Ltd.

    发明人： Sato, Takashi ,  Tsuchiya, Kenji ,  Morita, Ayumu

    IPC分类号： H01H33/66

    CPC分类号： H01H33/666 ,  H01H31/003 ,  H01H2033/6623 ,  H01H2033/6668

    摘要： A vacuum switch means a unit switch section comprising a pair of vacuum main circuit switches, an earth switch, operating rods for operating movable conductors of the main circuit vacuum switch and earth switch, and a molding case covering the main circuit switch , earth switch and the operating rods, wherein the operating rods are connectable with an operating mechanism, and the fixed conductors of the main circuit switch and earth switch are connected with bushing conductors. The main circuit vacuum switches are disposed in separate vacuum chambers. The movable conductors of the main circuit switches are electrically connected to each other via a transition conductor, and the movable conductors are operated synchronously by means of a transition rod connected to the transition conductor.

    摘要翻译： 真空开关是指包括一对真空主电路开关，接地开关，用于操作主电路真空开关和接地开关的可动导体的操作杆的单元开关部分，以及覆盖主电路开关，接地开关和 操作杆，其中操作杆可与操作机构连接，并且主电路开关和接地开关的固定导体与衬套导体连接。 主电路真空开关设置在独立的真空室中。 主电路开关的可动导体经由过渡导体彼此电连接，并且可移动导体通过连接到过渡导体的过渡棒同步地操作。

    Electromagnetic operation device
    9.
    发明公开
    Electromagnetic operation device 审中-公开
    ElektromagnetischesSchaltgerät

    公开(公告)号：EP1619708A2

    公开(公告)日：2006-01-25

    申请号：EP05015896.3

    申请日：2005-07-21

    申请人： Hitachi, Ltd.

    发明人： Sugino, Tomohiro ,  Morita, Ayumu ,  Tsuchiya, Kenji ,  Kobayashi, Masato

    IPC分类号： H01H33/66 ,  H01H33/02

    CPC分类号： H01H33/6662 ,  H01H33/022 ,  H01H2033/6667

    摘要： An electromagnetic operation device, comprising electromagnetic operators 4 each paired with a vacuum valve 1 of each phase of three phases, is equipped with main shafts 2 that can operate independently for each phase and a three-phase connecting shaft 3 that synchronizes the operation of the three phases in accordance with the operation of each main shaft. The rod 44 of the electromagnetic operator 4 is connected with the blade 45 of the main shaft 2 at the fulcrum 46 and the blade 47 of the three-phase connecting shaft 3 is connected with the blade 45 of the main shaft 2 by the linkage 7. The motion of a main shaft 2 that has operated quicker than the others is transmitted to the other main shafts via the three-phase connecting shaft 3 so as to synchronize the operation of the three phases.

    摘要翻译： 电磁操作装置，包括与三相各相的真空阀1配对的电磁操作装置4，配备有能够对各相独立运转的主轴2以及使相位相反的运转同步的三相连结轴3 按照每个主轴的运行三相。 电磁操作器4的杆44在支轴46处与主轴2的叶片45连接，三相连接轴3的叶片47通过连杆7与主轴2的叶片45连接 通过三相连接轴3使主轴2的动作比其他动作更快地运动到其他主轴，以使三相的动作同步。