Electromagnetic actuator with reduced performance variation

    公开(公告)号:US09741482B2

    公开(公告)日:2017-08-22

    申请号:US14702280

    申请日:2015-05-01

    CPC classification number: H01F7/1615 H01F2007/1692

    Abstract: An electromagnetic actuator includes a housing and a bobbin positioned within the housing and secured relative thereto so as to be centered therein, the bobbin comprising a bobbin formed of a non-magnetic material. The electromagnetic actuator also includes a coil wound about the bobbin and a magnetic circuit comprising a plurality of actuator components positioned within the housing and on or adjacent to the bobbin. The actuator components include a permanent magnet that induces a magnetic flux flow through the magnetic circuit so as to generate a magnetic force, and an armature selectively movable within an opening formed through the bobbin responsive to the magnetic force and to current selectively provided to the coil. The bobbin locates and centers the components of the magnetic circuit about the central axis and provides a bearing surface for the armature as it moves within the opening formed through the bobbin.

    ELECTROMAGNETIC ACTUATOR WITH REDUCED PERFORMANCE VARIATION
    2.
    发明申请
    ELECTROMAGNETIC ACTUATOR WITH REDUCED PERFORMANCE VARIATION 有权
    具有降低性能变化的电磁致动器

    公开(公告)号:US20160322147A1

    公开(公告)日:2016-11-03

    申请号:US14702280

    申请日:2015-05-01

    CPC classification number: H01F7/1615 H01F2007/1692

    Abstract: An electromagnetic actuator includes a housing and a bobbin positioned within the housing and secured relative thereto so as to be centered therein, the bobbin comprising a bobbin formed of a non-magnetic material. The electromagnetic actuator also includes a coil wound about the bobbin and a magnetic circuit comprising a plurality of actuator components positioned within the housing and on or adjacent to the bobbin. The actuator components include a permanent magnet that induces a magnetic flux flow through the magnetic circuit so as to generate a magnetic force, and an armature selectively movable within an opening formed through the bobbin responsive to the magnetic force and to current selectively provided to the coil. The bobbin locates and centers the components of the magnetic circuit about the central axis and provides a bearing surface for the armature as it moves within the opening formed through the bobbin.

    Abstract translation: 电磁致动器包括壳体和位于壳体内并且相对于其固定在其中心的线轴,线轴包括由非磁性材料形成的线轴。 电磁致动器还包括围绕线轴缠绕的线圈和包括定位在壳体内并且在线轴上或与线轴相邻的多个致动器部件的磁路。 致动器部件包括永磁体,其引起磁通量流过磁路以产生磁力,并且电枢可选择性地在通过线轴形成的开口内运动,以响应于磁力和选择性地提供给线圈的电流 。 线轴将磁路的部件围绕中心轴线定位和居中,并且当电枢在通过线轴形成的开口内移动时为其提供支承面。

    VACUUM LOSS DETECTION
    4.
    发明申请
    VACUUM LOSS DETECTION 有权
    真空损失检测

    公开(公告)号:US20150325394A1

    公开(公告)日:2015-11-12

    申请号:US14708770

    申请日:2015-05-11

    CPC classification number: H01H33/668 G01N27/021 H01H33/66207

    Abstract: Techniques for detecting vacuum loss in a vacuum interrupter are disclosed. For example, a sensing system of a vacuum interrupter includes a sensor including a material that oxidizes in the presence of air and is at least partially positioned in an evacuated space of a vacuum interrupter, the sensor being configured to produce an indication of impedance of the material; and a control system coupled to the sensor, the control system including an electronic processor and an electronic storage that stores instructions that, when executed, cause the electronic processor to access an indication of impedance produced by the sensor, determine a measure of impedance of the material of the sensor based on the accessed indication of impedance, and determine a condition of the evacuated space based on the determined measure of impedance.

    Abstract translation: 公开了一种在真空断路器中检测真空损失的技术。 例如,真空断路器的感测系统包括传感器,该传感器包括在空气存在下氧化并且至少部分地定位在真空断续器的抽空空间中的材料,该传感器被配置为产生阻抗的指示 材料; 以及耦合到所述传感器的控制系统,所述控制系统包括电子处理器和电子存储器,所述电子存储器存储指令,所述指令在被执行时使得所述电子处理器访问由所述传感器产生的阻抗的指示, 基于所访问的阻抗指示的传感器的材料,并且基于确定的阻抗测量来确定抽空空间的状况。

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