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    • 9. 发明申请
    • THRUST MAGNETIC BEARING SYSTEM
    • 推力磁力轴承系统
    • US20090072644A1
    • 2009-03-19
    • US11950656
    • 2007-12-05
    • Dong-Chul HANIn-Bae ChangIn-Hwang ParkYoung-Ho Park
    • Dong-Chul HANIn-Bae ChangIn-Hwang ParkYoung-Ho Park
    • H02K7/09G01B7/14G01R27/26
    • G01B7/144F16C32/0446F16C32/0465F16C32/0476H02K7/09
    • A thrust magnetic bearing system separates magnetic circuits of electromagnets from those of permanent magnets so that each permanent magnet produces a bias magnetic field while each electromagnet functions only to control the position of a rotating body, thereby achieving desired displacement and current stiffness without flowing a bias current through the electromagnet. The magnetic bearing system includes a thrust displacement sensor and a thrust magnetic bearing to float a disk floating body based on displacement information detected through the displacement sensor. The magnetic bearing includes a donut permanent magnet, a pair of electromagnets connected in series to form an inductor at both sides of the donut permanent magnet, and a pair of magnetic poles provided opposite each other outside the pair of electromagnets. The magnetic bearing floats the floating body through a bias magnetic flux generated by the permanent magnet and a control magnetic flux generated by the electromagnets.
    • 推力磁轴承系统将电磁铁的磁路与永久磁铁的磁路分离,使得每个永磁体产生偏置磁场,而每个电磁体仅起到控制旋转体的位置的作用,从而实现期望的位移和电流刚度而不流动偏压 电流通过电磁铁。 磁轴承系统包括推力位移传感器和推力磁轴承,用于基于通过位移传感器检测到的位移信息来浮动盘浮体。 磁性轴承包括环形永磁体,串联连接的一对电磁体,以在环形永磁体的两侧形成电感器,以及在该对电磁体外部彼此相对设置的一对磁极。 磁性轴承通过由永磁体产生的偏置磁通和由电磁体产生的控制磁通量浮动浮体。