ELECTRIC WORKING MACHINE
    21.
    发明申请

    公开(公告)号:US20200381933A1

    公开(公告)日:2020-12-03

    申请号:US16884788

    申请日:2020-05-27

    Abstract: An electric working machine of one aspect of the present disclosure includes a connection port, a control circuit, and/or a power supply switch. The power supply switch is provided on a power supply path extending from a battery pack connected to the connection port to the control circuit. The power supply switch maintains an ON state while a power supply permission signal is output from the battery pack to the electric working machine. The control circuit outputs an ON-command signal to the power supply switch for a specified period of time in response to loss of the power supply permission signal from the battery pack.

    ELECTRIC WORKING MACHINE AND METHOD FOR BRAKING THREE-PHASE BRUSHLESS MOTOR OF ELECTRIC WORKING MACHINE

    公开(公告)号:US20180367070A1

    公开(公告)日:2018-12-20

    申请号:US15992530

    申请日:2018-05-30

    CPC classification number: H02P3/12 B24B23/028 B24B47/12

    Abstract: In one aspect of the present disclosure, an electric working machine includes a three-phase brushless motor, a first switching element, a second switching element, a third switching element, a fourth switching element, a fifth switching element, a sixth switching element, a rotation detector, a brake controller. The brake controller executes a two-phase short-circuit brake. The two-phase short-circuit brake is executed so as to switch any of the fourth switching element, the fifth switching element, and the sixth switching element to a corresponding ON-state or an OFF-state in response a detection signal from the rotation detector that occurs prior to a switching time.

    WORK APPARATUS, AND METHOD OF REWRITING HISTORY INFORMATION THEREOF
    25.
    发明申请
    WORK APPARATUS, AND METHOD OF REWRITING HISTORY INFORMATION THEREOF 审中-公开
    工作装置及其历史信息的方法

    公开(公告)号:US20170060471A1

    公开(公告)日:2017-03-02

    申请号:US15244130

    申请日:2016-08-23

    Abstract: A work apparatus in one aspect of the present disclosure comprises a control unit, a volatile memory and a rewritable non-volatile memory. The control unit comprises an update processing unit and a writing processing unit. The writing processing unit writes history information in the volatile memory into the non-volatile memory when the writing processing unit predicts a suspension of supply of an electric power to the control unit.

    Abstract translation: 本公开的一个方面的工作装置包括控制单元,易失性存储器和可重写非易失性存储器。 控制单元包括更新处理单元和写入处理单元。 当写入处理单元预测向控制单元提供电力的暂停时,写入处理单元将历史信息写入到易失性存储器中。

    ELECTRIC POWER TOOL
    26.
    发明申请
    ELECTRIC POWER TOOL 审中-公开
    电动工具

    公开(公告)号:US20160107297A1

    公开(公告)日:2016-04-21

    申请号:US14885448

    申请日:2015-10-16

    CPC classification number: B25B21/008 B25B21/02 B25B21/026 B25B23/18

    Abstract: An electric power tool in one aspect of the present disclosure comprises a motor, a hitting mechanism, a hitting detector, and a control unit. The control unit is configured to set a control amount of the motor so that the motor rotates at a lower speed than a speed in the target rotation state during an initial driving period, and switch the control amount to a final control amount corresponding to the target rotation state when the initial driving period elapses. The initial driving period is a period from when generation of a hitting force is detected by the hitting detector until a predetermined first time period elapses, after the motor is started driven.

    Abstract translation: 本公开的一个方面的电动工具包括电动机,击打机构,击打检测器和控制单元。 控制单元被配置为设置电动机的控制量,使得电动机在初始驱动期间以比目标旋转状态的速度低的速度旋转,并且将控制量切换到对应于目标的最终控制量 当初始驾驶时间过去时的旋转状态。 初始驱动期间是在电动机开始驱动之后从打击检测器产生击打力直到经过预定的第一时间段的时间段。

    POWER TOOL
    27.
    发明申请
    POWER TOOL 审中-公开
    电动工具

    公开(公告)号:US20140096988A1

    公开(公告)日:2014-04-10

    申请号:US14045225

    申请日:2013-10-03

    CPC classification number: B23Q5/043 A01D34/90 B25F5/00

    Abstract: A brush cutter as a power tool includes a combustion engine, an electric motor, a gear head which drives a blade, a battery pack which provides electric current to the electric motor and a controller which controls a driving of the blade. An output shaft of the combustion engine and an output shaft of the electric motor are arranged coaxially to each other. Further, the combustion engine drives the gear head and thereby the blade is driven. The controller has a first control mode in which the blade is driven and a second control mode in which the battery pack is charged. In the second control mode, the controller controls the combustion engine so that the combustion engine drives the electric motor as a generator without driving the blade, and the battery pack is charged by the generator.

    Abstract translation: 作为动力工具的刷刀包括内燃机,电动机,驱动叶片的齿轮头,向电动机提供电流的电池组以及控制叶片驱动的控制器。 内燃机的输出轴和电动机的输出轴彼此同轴设置。 此外,内燃机驱动齿轮头,从而驱动叶片。 控制器具有驱动叶片的第一控制模式和电池组被充电的第二控制模式。 在第二控制模式中,控制器控制内燃机,使得内燃发动机作为发电机驱动电动机而不驱动叶片,电池组由发电机充电。

Patent Agency Ranking