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    • 5. 发明申请
    • BRUSHLESS MOTOR FOR A POWER TOOL
    • 电动工具用无刷电机
    • WO2017173075A1
    • 2017-10-05
    • PCT/US2017/025010
    • 2017-03-30
    • MILWAUKEE ELECTRIC TOOL CORPORATION
    • BEYERL, Andrew, T.BOULANGER, KeithHUBER, AlexELGER, William, A.WACKWITZ, Jeffrey, M.
    • B25F5/00H02K29/06H02K5/14H02K16/02H02K7/116
    • A brushless direct current motor for a power tool. The motor includes a stator assembly including a stator core having stator laminations with an annular portion and inwardly extending stator teeth. The motor also includes a rotor assembly including a rotor core having rotor laminations and defining a central aperture that receives an output shaft. The rotor assembly also includes a rotor end cap on a first side of the rotor core having a bearing holder and defining a channel, wherein the channel is open on a side of the rotor end cap facing the rotor core. The motor further includes a bearing provided in the bearing holder that couples the rotor end cap to the output shaft and a position sensor board assembly provided in the channel of the rotor end cap and configured to provide position information of the rotor core to a motor controller.
    • 一种用于电动工具的无刷直流电机。 该电动机包括定子组件,该定子组件包括具有定子叠片的定子芯,该定子叠片具有环形部分和向内延伸的定子齿。 该电动机还包括转子组件,该转子组件包括具有转子叠片并限定接收输出轴的中心孔的转子芯。 所述转子组件还包括在所述转子芯的第一侧上的转子端盖,所述转子端盖具有轴承保持器并且限定通道,其中,所述通道在所述转子端盖的朝向所述转子芯的侧上敞开。 电动机还包括设置在轴承保持器中的轴承,该轴承将转子端盖联接到输出轴;以及位置传感器板组件,设置在转子端盖的通道中并且构造成将转子芯的位置信息提供给电动机控制器

    • 9. 发明申请
    • PRECISION TORQUE SCREWDRIVER
    • 精密扭矩螺丝刀
    • WO2016176202A1
    • 2016-11-03
    • PCT/US2016/029355
    • 2016-04-26
    • MILWAUKEE ELECTRIC TOOL CORPORATION
    • THORSON, Troy, C.MERGENER, Matthew, J.DEY, John, S., IVLICHTENSTEIGER, TobySCHNEIDER, Jacob, P.SHEFFIELD, TrentWACKWITZ, Jeffrey, M.
    • B25B21/00B25B23/14B25B23/147
    • B25B23/147
    • A transducer assembly for use in a power tool includes a bracket affixed to a housing of the power tool and a protrusion having an arcuate outer periphery. The protrusion is offset from a central axis of the bracket and extends from the bracket in a direction parallel with the central axis. The transducer assembly also includes a transducer having an inner hub with an aperture through which a distal end of the protrusion is received. The arcuate outer periphery of the protrusion is in substantially line contact with a wall segment at least partially defining the aperture. The transducer also includes an outer rim affixed to a ring gear of the power tool, a flexible web interconnecting the inner hub to the rim, and a sensor affixed to the flexible web for detecting strain of the flexible web in response to a reaction torque applied to the ring gear.
    • 用于电动工具的换能器组件包括固定在动力工具的壳体上的支架和具有弧形外周边的突起。 突起从支架的中心轴线偏移,并从支架沿平行于中心轴线的方向延伸。 换能器组件还包括具有内部毂的换能器,内部毂具有孔,突出部的远端通过该孔被接收。 突起的弓形外周与至少部分地限定孔的壁段基本上线接触。 传感器还包括固定到动力工具的环形齿轮的外缘,将内轮毂与轮辋相互连接的柔性腹板,以及固定到柔性腹板上的传感器,用于响应于施加的反作用扭矩来检测挠性腹板的应变 到齿圈。