Contactless rotary joint with safety function
    1.
    发明授权
    Contactless rotary joint with safety function 有权
    具有安全功能的非接触式旋转接头

    公开(公告)号:EP2530805B1

    公开(公告)日:2017-06-21

    申请号:EP11172372.2

    申请日:2011-07-01

    发明人: Krumme, Nils

    IPC分类号: H02J5/00

    摘要: An inductive rotary joint system has a one phase rectifier for receiving a one phase AC input, generating a comparatively lower DC voltage, and a three phase rectifier for receiving a three phase input, generating a comparatively higher DC voltage. An AC power generator generates an AC signal from the DC voltage, which is coupled by an inductive rotary joint to a load at the rotating side. When being connected to the one phase AC input only, the AC power generator receives a comparatively lower DC voltage and therefore couples a comparatively lower voltage to the load. In the case of being connected to the tree phase AC input, the AC power generator receives a comparatively higher DC voltage and therefore couples a comparatively higher voltage to the load. A control unit located at the secondary side for controlling at least the load is connected to measure the voltage produced for the secondary side, and to distinguish between a comparatively lower voltage and a comparatively higher voltage. For the case that is a comparatively higher voltage, an x-ray tube is enabled within the load.

    摘要翻译: 感应旋转接头系统具有单相整流器,用于接收单相交流输入,产生相对较低的直流电压,以及用于接收三相输入的三相整流器,产生相对较高的直流电压。 交流发电机根据直流电压产生交流信号,直流电压通过感应旋转接头连接到旋转侧的负载。 当仅连接到单相AC输入时,AC发电机接收相对较低的DC电压并且因此将相对较低的电压耦合到负载。 在连接到树相AC输入的情况下,AC发电机接收相对较高的DC电压并且因此将相对较高的电压耦合到负载。 位于次级侧用于控制至少负载的控制单元被连接以测量次级侧产生的电压,并且区分相对较低的电压和相对较高的电压。 对于电压相对较高的情况,在负载内启用X射线管。

    Inductive rotary joint with secondary safety circuit
    2.
    发明公开
    Inductive rotary joint with secondary safety circuit 有权
    InduktiverDrehübertragermitsekundärerSicherheitsschaltung

    公开(公告)号:EP3034001A1

    公开(公告)日:2016-06-22

    申请号:EP14198958.2

    申请日:2014-12-18

    发明人: Herrmann, Ulrich

    摘要: An inductive rotating power transfer circuit, preferably for transferring electrical power from the stationary part to the rotating part of a CT scanner comprises an inductive power transformer having a stationary primary side and a rotating secondary side. The secondary side is connected via a rectifier to a filtering capacitor, delivering electrical power to a load. One of the output pins of the filtering capacitor is connected to a secondary ground at the rotating part which is further connected to a stationary protective ground via a galvanic slip ring. In the case of a short circuit between a secondary transformer winding and the secondary ground, the secondary winding is partially short-circuited by one of the rectifier diodes. This causes an asymmetric current load at the primary side and a current flowing through the slip ring. Both currents may be used to detect a failure of the secondary winding.

    摘要翻译: 感应旋转功率传输电路,优选地用于将电力从固定部分转移到CT扫描器的旋转部分包括具有固定的初级侧和旋转次级侧的感应式电力变压器。 次级侧通过整流器连接到滤波电容器,将电能传递给负载。 滤波电容器的一个输出引脚在旋转部分连接到次级接地,该第二接地端通过电镀滑环进一步连接到固定保护接地。 在次级变压器绕组和次级接地之间短路的情况下,次级绕组由整流二极管之一部分短路。 这导致初级侧的不对称电流负载和流过滑环的电流。 可以使用两个电流来检测次级绕组的故障。

    Slipring with increased creepage distance
    3.
    发明公开
    Slipring with increased creepage distance 审中-公开
    Schleifring miterhöhterKriechstrecke

    公开(公告)号:EP3021428A1

    公开(公告)日:2016-05-18

    申请号:EP14192687.3

    申请日:2014-11-11

    IPC分类号: H01R39/08 H01R43/10

    CPC分类号: H01R39/08 H01R43/10

    摘要: A slip ring module (10) comprises a body (11) holding a plurality of sliding tracks (12). The sliding tracks have a T-shaped cross-section with a support portion (15) and a contact portion (13) further providing a contact surface (14). A slip ring brush, which may be a wire brush or carbon brush, is sliding on the contact surface to provide contact to the slip ring module which may rotate against the brush. The contact portion is wider than the support portion, resulting in an enlarged creepage distance (40) at the surface of the body. This further results in an increased isolation and life time of the slip ring module.

    摘要翻译: 滑环模块(10)包括保持多个滑动轨道(12)的主体(11)。 滑动轨道具有带有支撑部分(15)的T形横截面和进一步提供接触表面(14)的接触部分(13)。 可以是钢丝刷或碳刷的滑环刷在接触表面上滑动以提供与滑环模块的接触,该滑环模块可以相对于刷旋转。 接触部分比支撑部分宽,导致在主体表面处的爬电距离(40)增大。 这进一步导致滑环组件的隔离和寿命增加。

    Slipring with Active Cooling
    4.
    发明公开
    Slipring with Active Cooling 审中-公开
    滑环与主动冷却

    公开(公告)号:EP2924817A8

    公开(公告)日:2016-03-16

    申请号:EP14161942.9

    申请日:2014-03-27

    IPC分类号: H01R39/08 H01R39/46 H02K9/28

    摘要: A slipring assembly comprises a slipring module (10) having at least one slipring track (17,18,19), which is in electrical contact with at least one slipring brush (21,22). The slipring module comprises an isolating body (13) holding the at least one slipring track (17,18,19). Furthermore a cooling element (60) is embedded into or attached to the slipring module (10) to remove heat from the slipring module (10) and to decrease the temperature of the at least one slipring track (17,18,19). This allows decreasing the temperature of the slipring module (10) and increasing the maximum transferable power and lifetime.

    SELF-LUBRICATING SLIP RING
    5.
    发明公开
    SELF-LUBRICATING SLIP RING 审中-公开
    SELBSTSCHMIERENDER SCHLEIFRING

    公开(公告)号:EP2936625A1

    公开(公告)日:2015-10-28

    申请号:EP12815668.4

    申请日:2012-12-18

    摘要: A slip ring has a slip ring track with a contact area, the contact area containing a plurality of pores or cavities. A lubricant is held within these pores and cavities and is enclosed by a top coating. When a slip ring brush is sliding over the slip ring track, it rubs off particles of the top coating, therefore opening some of the pores or cavities which release parts of the lubricant contained therein. This lubricant reduces surface friction of the slip ring brush at the slip ring track and therefore further wear, which results in an extended lifetime.

    摘要翻译: 滑环具有带有接触区域的滑环轨道,接触区域包含多个孔或空腔。 润滑剂保持在这些孔和空腔内,并被顶部涂层包围。 当滑环刷滑过滑环轨道时,它会擦去顶部涂层的颗粒,因此打开一些孔或空腔,释放其中所含润滑剂的部分。 这种润滑剂减少了滑环刷在滑环轨道处的表面摩擦,因此进一步磨损,这延长了使用寿命。

    Slipring with integrated heating unit
    7.
    发明公开
    Slipring with integrated heating unit 有权
    Schleifring mit integrierter Heizvorrichtung

    公开(公告)号:EP2696449A1

    公开(公告)日:2014-02-12

    申请号:EP12179434.1

    申请日:2012-08-06

    IPC分类号: H01R39/08

    摘要: A slipring assembly comprises a slipring module having at least one slipring track which is in electrical contact with at least one slipring brush. The slipring module comprises an isolating body holding the at least one slipring track. Furthermore a heating element is embedded in the slipring module to generate heat within the slipring module and to increase the temperature of the at least one slipring track. This allows increasing the temperature of the slipring module to an optimum operation temperature and further to remove humidity from the surface of the slipring track.

    摘要翻译: 滑动组件包括具有至少一个与至少一个滑动刷电气接触的滑动轨道的滑动模块。 滑动模块包括保持该至少一个滑动轨道的隔离体。 此外,加热元件嵌入在滑动模块中以在滑动模块内产生热量并且增加至少一个滑动轨道的温度。 这允许将滑动模块的温度提高到最佳操作温度,并且进一步从滑动轨道的表面去除湿度。

    Polarization maintaining optical rotary joint
    10.
    发明公开
    Polarization maintaining optical rotary joint 有权
    Polarisationserhaltende optische Drehverbindung

    公开(公告)号:EP2385403A2

    公开(公告)日:2011-11-09

    申请号:EP11164047.0

    申请日:2011-04-28

    IPC分类号: G02B6/36

    CPC分类号: G02B6/3604 G02B6/2706

    摘要: An optical rotating data transmission device for polarization-maintaining transmission of linearly polarized light includes at least one first collimator for coupling on first light-waveguides, and also a second collimator for coupling on second light-waveguides, the second collimator being supported to be rotatable relative to the first collimator about a rotation axis. At least two λ/4 plates for converting linear polarization to circular polarization and vice-versa are provided in between a plate for attaching optical fibers and a micro lens system.

    摘要翻译: 用于线性偏振光的偏振保持透射的旋转数据传输装置包括用于在第一光波导上耦合的至少一个第一准直器,以及用于在第二光波导上耦合的第二准直器,所述第二准直器被支撑为可旋转的 相对于围绕旋转轴线的第一准直器。 在用于连接光纤的板和微透镜系统之间提供用于将线性偏振转换成圆偏振的至少两个»/ 4板,反之亦然。