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    • 3. 发明授权
    • Linear motor with integrally formed stator
    • 具有整体成型定子的直线电机
    • US07944095B2
    • 2011-05-17
    • US12718555
    • 2010-03-05
    • Yoichi Kawai
    • Yoichi Kawai
    • H02K41/03
    • H02K41/03H02K16/00
    • A linear motor assembly includes two stators extending in parallel and having salient poles arranged at a predetermined interval on opposing surfaces and a mover having three types of mover blocks. The mover blocks are made up of three-phase alternating current coils configuring magnetic poles of three phases and permanent magnets arranged in alternating polarities on two surfaces of the mover blocks opposing each of the two stators. The mover blocks are movable between the two stators along a direction in which the stators extend. A plurality of linear motors are arranged in parallel with respect to a travel direction of the movers, and the stators provided between adjacent movers are integrally formed such that they have said salient poles on the two surfaces opposing these movers.
    • 线性电动机组件包括两个平行延伸的定子,并且在相对表面上以预定间隔布置凸极,以及具有三种类型的动子块的动子。 动子块由构成三相磁极的三相交流线圈和与两个定子相对的动子块的两个表面上以交替极性排列的永磁体构成。 动子块沿着定子延伸的方向在两个定子之间移动。 多个线性电动机相对于移动体的行进方向平行布置,并且设置在相邻的移动体之间的定子整体地形成为使得它们在与这些移动体相对的两个表面上具有所述凸极。
    • 10. 发明申请
    • MOTOR MAGNETIC POLE POSITION CORRECTION METHOD
    • 电机磁极位置校正方法
    • US20120133311A1
    • 2012-05-31
    • US13300080
    • 2011-11-18
    • Yoichi Kawai
    • Yoichi Kawai
    • H02P6/16
    • H02P6/181H02P6/15
    • A motor magnetic pole position correction method includes preventing a movement of a movable element of a direct drive motor by mechanical brake (step S9), generating a command that designates a position spaced or separated from the present position (step S10), detecting a torque command value of the direct drive motor (step S12), determining a magnetic pole position correction value based on a comparison between the detected torque command value and a predetermined threshold value (steps S14 and S16), storing the determined magnetic pole position correction value in a memory (step S18), and performing motor control using an electrical angle offset value obtained based on the magnetic pole position correction value stored in the memory.
    • 电动机磁极位置校正方法包括通过机械制动来防止直接驱动电动机的可动元件的移动(步骤S9),产生指定与当前位置间隔开或分离的位置的命令(步骤S10),检测转矩 直接驱动电动机的指令值(步骤S12),基于检测到的转矩指令值与预定阈值之间的比较来确定磁极位置校正值(步骤S14和S16),将确定的磁极位置校正值存储在 存储器(步骤S18),并且使用基于存储在存储器中的磁极位置校正值获得的电角度偏移值来执行电动机控制。