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2. 发明申请

WO2011025493A1 PIPE CUTTER 审中-公开
标题翻译：管道切割机
公开(公告)号：WO2011025493A1
公开(公告)日：2011-03-03
申请号：PCT/US2009/055353
申请日：2009-08-28
申请人： MILWAUKEE ELECTRIC TOOL CORPORATION , LUO, Hua, Tian , LIU, Zhong, Qun , LI, Shui, Ming , NAUGHTON, Michael , SCOTT, John, S.
发明人： LUO, Hua, Tian , LIU, Zhong, Qun , LI, Shui, Ming , NAUGHTON, Michael , SCOTT, John, S.
IPC分类号： B23D21/06
CPC分类号： B23D21/06 , B23D17/02 , B23D21/00 , B26B15/00 , B26D3/16 , B26D5/00
摘要： A power tool that includes a pipe holder, a knife pivotally coupled to the pipe holder, and a drive mechanism coupled to at least one of the pipe holder and the knife. The power tool also includes a motor coupled to a drive mechanism, and a removable and rechargeable battery pack coupled to the motor to selectively provide power signals to the motor. The power tool also includes a controller configured to monitor a plurality of conditions of the power tool, such as battery pack voltage, battery pack temperature, operational current, and the like. The controller is also configured to detect one or more events related to the plurality of conditions of the power tool. For example, the controller is configured to monitor the operational current of the power tool. If the operational current of the power tool exceeds a first threshold value, a power signal duty cycle is reduced from a first duty cycle value to a second duty cycle value to limit the amount of torque the power tool is able to generate.
摘要翻译：一种电动工具，其包括管支架，可枢转地联接到管保持器的刀和联接到管支架和刀的至少一个的驱动机构。电动工具还包括耦合到驱动机构的电动机，以及耦合到电动机的可移除和可再充电电池组，以选择性地向电动机提供电力信号。电动工具还包括被配置为监视电动工具的多个状态的控制器，例如电池组电压，电池组温度，工作电流等。控制器还被配置为检测与电动工具的多个条件相关的一个或多个事件。例如，控制器被配置为监视电动工具的工作电流。如果电动工具的工作电流超过第一阈值，则功率信号占空比从第一占空比值减小到第二占空比值，以限制电动工具能产生的转矩量。

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