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331 条记录 (耗时 0.031 秒)

    Bi-directional direct current switching apparatus having arc extinguishing chambers alternatively used according to polarity applied to said apparatus
    2.
    发明授权
    Bi-directional direct current switching apparatus having arc extinguishing chambers alternatively used according to polarity applied to said apparatus 失效
    具有根据应用于设备的极性相应使用的弧形灭弧室的双向直流电流开关装置

    公开(公告)号：US5138122A

    公开(公告)日：1992-08-11

    申请号：US574839

    申请日：1990-08-29

    申请人： Peter K. Moldovan ,  Mark A. Juds ,  Robert A. Kihn

    发明人： Peter K. Moldovan ,  Mark A. Juds ,  Robert A. Kihn

    IPC分类号： H01H33/18 ,  H01H9/34 ,  H01H9/44 ,  H01H33/59 ,  H01H51/12

    CPC分类号： H01H9/443 ,  H01H51/12 ,  H01H9/34 ,  H01H33/596

    摘要： Direct current switching apparatus having two arc extinguishing chambers located in a common transverse plane, one chamber being divided into separate laterally spaced portions disposed below the other chamber, a pair of spaced conductors each having a contact element and an arc runner extending from near the contact, the arc runners being curved and disposed in a convex mirror-imate relationship to each other between the laterally spaced portions, distal ends of each arc runners providing a divergent path into the other chamber, a conductor disposed at outboard sides of the laterally spaced arc chamber portions cooperating with concave sides of the arc runners to provide divergent paths into the spaced arc chamber portions, power supply terminals connected to the respective spaced conductors, magnetic plates disposed in front and in back of the arc chambers having portions providing a magnetic path externally around the chambers, permanent magnets magnetically coupled to at least one of the magnetic plates providing a magnetic field in the plates and across the arc chambers in a forward direction, a movable contact movable normal to the forward direction into and out of bridging engagement with the stationary contact elements, and an electromagnetic drive motor disposed coextensive with the arc extinguishing chambers, coupled at a lower end to the movable contact. Arcs established between the stationary and movable contact elements are moved from the contacts into either arc extinguishing chamber by the magnetic field coacting with current in the arc to generate forces which move the arc.

    Miniature magnetic latch relay
    3.
    发明授权
    Miniature magnetic latch relay 失效
    微型磁锁继电器

    公开(公告)号：US4366459A

    公开(公告)日：1982-12-28

    申请号：US281652

    申请日：1981-07-09

    申请人： Jack J. Vitola

    发明人： Jack J. Vitola

    IPC分类号： H01H51/12 ,  H01H51/22

    CPC分类号： H01H51/12

    摘要： A miniature magnetic latch relay including a support header, a permanent magnet, an armature in pivotal contact with the magnet and engaging a pair of switch contacts movable between corresponding pairs of fixed contacts, the armature being pivotally movable between two stable positions in response to selective energization of two electromagnetic coils, and a frame mounted in spaced relation to the header having magnetic core sections for the coils and pole piece sections for the armature, the frame supporting the permanent magnet and having an opening through which the magnet extends for pivotal contact with the armature. A barrier of non-magnetic material in the frame around the opening resists magnetic flux flow between the permanent magnet and the frame portion near the opening thereby forcing magnetic flux to flow between the permanent magnet and the armature. A formation on the end of the magnet is pivotally received in a groove in the armature and is retained therein under vibratory and shock load conditions by a retention tab and pin arrangement carried by the frame and spaced from the armature, the pin to armature spacing being less than the depth of the groove. The formation on the end of the permanent magnet is shaped to enhance flux coupling to the armature.

    摘要翻译： 一种微型磁性闩锁继电器，包括支撑头，永久磁铁，与磁体枢转接触的衔铁，并使一对可在相应的固定触点对之间移动的开关触点接合，该电枢能够响应于选择性而在两个稳定位置之间枢转运动 两个电磁线圈的通电，以及与具有用于线圈的磁芯部分和用于电枢的极片部分的集管隔开的框架，框架支撑永磁体并且具有开口，磁体通过该开口延伸以与 电枢。 在开口周围的框架中的非磁性材料的屏障抵抗永久磁体和靠近开口的框架部分之间的磁通量流动，从而迫使磁通在永磁体和电枢之间流动。 磁体端部的结构可枢转地接收在电枢中的槽中，并通过由框架承载并与电枢间隔开的保持突片和引脚装置在振动和冲击负载条件下保持在其中，引脚与电枢间隔为 小于凹槽的深度。 永磁体端部的形成形状以增强与电枢的耦合。

    Automatic line transfer control
    4.
    发明授权
    Automatic line transfer control 失效
    自动线路传输控制

    公开(公告)号：US3736054A

    公开(公告)日：1973-05-29

    申请号：US3736054D

    申请日：1972-03-27

    申请人： ELECTRO MOTION PACIFIC INC

    发明人： LOFFLER E W ,  KRUGER H

    IPC分类号： H01H3/26 ,  H01H9/00 ,  H01H51/12 ,  H01H3/00

    CPC分类号： H01H3/26 ,  H01H9/0066 ,  H01H51/12 ,  H01H2300/018

    摘要： An oscillatory, multi-pole, mechanically held switch has a shaft provided with a lever at one end. The lever extends into a reciprocating box-like yoke which is connected at each end to the armature of a solenoid. Energization of one or the other solenoid causes oscillation of the shaft through about 60* and throws the switch to connect load lines to either public utility lines or emergency lines. In proximity to the yoke are two normally closed micro-switches, one wired in series with each solenoid. A pin on the lever is positioned so that when either solenoid has been energized and the switch lever fully moved in proper direction by the solenoid, the pin opens the micro-switch to de-energize the solenoid. The lever may be manually actuated in emergencies when the controls for the solenoids fail.

    摘要翻译： 振荡，多极机械保持的开关具有在一端设置有杆的轴。 杠杆延伸到往复式盒状轭中，每个端连接到螺线管的电枢。 一个或另一个电磁阀的通电导致轴的振荡大约60°，并将开关投入连接到公用电力线路或紧急线路的负载线路。 在磁轭附近是两个常闭微动开关，一个与每个螺线管串联。 定位杆上的一个销钉，使得当两个螺线管通电并且开关杆通过螺线管完全移动到正确的方向时，该引脚打开微动开关以使电磁线圈断电。 当螺线管的控制失败时，可以在紧急情况下手动启动控制杆。