公开(公告)号：EP3700713A1

公开(公告)日：2020-09-02

申请号：EP18870466.2

申请日：2018-10-25

申请人： Milwaukee Electric Tool Corporation

发明人： ABBOTT, Jonathan, E. ,  OBERMANN, Timothy, R. ,  DEY, John, S. ,  SUHR, Benjamin, R. ,  RYER, Richard, A. ,  MERGET, Maxwell, L. ,  FIELDBINDER, Douglas, R.

IPC分类号： B25F5/00 ,  H02P6/24

公开(公告)号：EP3400109A1

公开(公告)日：2018-11-14

申请号：EP17736214.2

申请日：2017-01-04

申请人： Milwaukee Electric Tool Corporation

发明人： DEY, John, S. ,  SCHNEIDER, Jacob, P. ,  MERGENER, Matthew, J.

IPC分类号： B23D49/16 ,  B23D51/16 ,  B25F5/00

CPC分类号： B25F5/006 ,  B25D17/245 ,  B25D2217/0073 ,  F16F9/535 ,  F16F2222/06

摘要： Systems and methods for reducing vibration in power tool. One system includes a power tool that includes a housing and a motor. The power tool further includes a magnetically susceptible fluid located within the housing. The power tool further includes an inductor configured to introduce a magnetic field to the magnetically susceptible fluid. The power tool further includes a sensor configured to indicate an amount of vibration experienced by the power tool. The power tool further includes an electronic processor coupled to the sensor and to the inductor. The electronic processor is configured to receive an input signal from the sensor indicating the amount of vibration, to generate a control signal based on the input signal, and to provide the control signal to the inductor to control the magnetic field.

公开(公告)号：EP3202537B1

公开(公告)日：2019-06-05

申请号：EP16204739.3

申请日：2016-12-16

申请人： Milwaukee Electric Tool Corporation

发明人： DEY, John, S. ,  WACKWITZ, Jeffrey, M.

IPC分类号： B25B21/02 ,  B25B23/147

公开(公告)号：EP3202537A1

公开(公告)日：2017-08-09

申请号：EP16204739.3

申请日：2016-12-16

申请人： Milwaukee Electric Tool Corporation

发明人： DEY, John, S. ,  WACKWITZ, Jeffrey, M.

IPC分类号： B25B21/02 ,  B25B23/147

CPC分类号： B25B23/1475 ,  B25B21/02

摘要： A power tool with an impact mechanism and that is controlled based on a drive angle from impacting. The power tool includes a housing, a brushless direct current (DC) motor within the housing, an impact mechanism, and an output drive device. The brushless DC motor includes a rotor coupled to a motor shaft to produce a rotational output. The impact mechanism includes a hammer coupled to the motor shaft, and an anvil that receives impacts from the hammer and drives an output device. The power tool further includes a position sensor that senses a position of the rotor and a controller coupled to the position sensor. The controller detects an impact of the impact mechanism, calculates a drive angle of the anvil caused by the impact based on output from the position sensor, and controls the brushless DC motor based on the drive angle.

摘要翻译： 带冲击机构的电动工具，根据冲击的驱动角度进行控制。 电动工具包括壳体，壳体内的无刷直流（DC）电动机，冲击机构和输出驱动装置。 无刷直流电动机包括连接到电动机轴以产生旋转输出的转子。 冲击机构包括联接到马达轴的锤子和接收锤子冲击并驱动输出装置的砧座。 动力工具还包括感测转子的位置的位置传感器和耦合到位置传感器的控制器。 控制器检测冲击机构的冲击，基于来自位置传感器的输出计算由冲击引起的砧座的驱动角度，并且基于驱动角度控制无刷DC电机。