SUPERCONDUCTING CURRENT PUMP
    2.
    发明公开
    SUPERCONDUCTING CURRENT PUMP 审中-公开
    超导电流泵

    公开(公告)号:EP3167462A1

    公开(公告)日:2017-05-17

    申请号:EP15831532.5

    申请日:2015-08-11

    IPC分类号: H01F6/00

    摘要: A superconducting current pump arranged to cause a DC electrical current to flow through a superconducting circuit accommodated within a cryogenic enclosure of a cryostat comprises a rotor external to the cryogenic enclosure and a stator within the cryogenic enclosure, the rotor and stator separated by a gap through which passes a thermally insulating wall of the cryogenic enclosure, the rotor and the stator comprising at least in part a ferromagnetic material to concentrate magnetic flux in a magnetic circuit across the gap between the rotor and the stator and through the wall, so that movement of the rotor external to the cryogenic enclosure relative to the stator within the cryogenic enclosure induces a DC transport current to flow around the superconducting circuit within the cryogenic enclosure. There is no coupling between a drive motor external to the cryogenic enclosure and an internal rotor which may introduce a path for heat leakage into the cryostat, in turn increasing the heat load and thus increasing the cooling power required to maintain the cold components within the cryogenic enclosure at the low operating temperature required.

    摘要翻译: 布置成使DC电流流过容纳在低温恒温器的低温外壳内的超导电路的超导电流泵包括位于低温外壳外部的转子和低温外壳内的定子,转子和定子通过间隙 其穿过低温外壳的绝热壁,转子和定子至少部分包括铁磁材料,以将磁通量集中在穿过转子和定子之间的间隙并通过壁的磁路中,从而使得 相对于低温外壳内的定子的低温外壳外部的转子诱导DC输送电流在低温外壳内的超导电路周围流动。 在低温外壳外部的驱动马达和内部转子之间不存在耦合,内部转子可能引入热泄漏到低温恒温器中的路径,继而增加热负荷并因此增加将冷组分维持在低温 在要求的低工作温度下进行封装。