Power Tool and Battery Pack for Use in the Power Tool
    8.
    发明申请
    Power Tool and Battery Pack for Use in the Power Tool 审中-公开
    电动工具和电池组用于电动工具

    公开(公告)号:US20130098646A1

    公开(公告)日:2013-04-25

    申请号:US13805299

    申请日:2011-08-31

    IPC分类号: B25F5/00 H01M10/42 B23Q17/00

    摘要: A power tool includes: a battery cell group including a plurality of secondary battery cells; a motor to which an electric power is supplied from the battery cell group through a switching element and a trigger switch; a current detector detecting a current value flowing in a current path; and a controller configured to receive a detection signal from the current detector and controls on/off operation of the switching element. If the current detector detects that the current value flowing in the battery cell group continuously exceeds a given value for a first time period, the controller conducts one of alarm display and alarm control for allowing an operator to recognize that a high load operation continues. If the current value continuously exceeds the given value for a second time period longer than the first time period, the controller turns off the switching element to interrupt the current path.

    摘要翻译: 电动工具包括:包括多个二次电池单体的电池单元组; 通过开关元件和触发开关从电池单元组供给电力的电动机; 电流检测器,检测在电流路径中流动的电流值; 以及控制器,被配置为从所述电流检测器接收检测信号并控制所述开关元件的接通/断开操作。 如果电流检测器检测到在电池单元组中流动的电流值持续超过给定值第一时间段,则控制器进行报警显示和报警控制之一,以允许操作者识别出高负载操作继续。 如果电流值连续超过比第一时间段长的第二时间段的给定值,则控制器关断开关元件以中断当前路径。

    ADAPTOR, ASSEMBLY OF BATTERY PACK AND ADAPTOR, AND ELECTRIC TOOL WITH THE SAME
    9.
    发明申请
    ADAPTOR, ASSEMBLY OF BATTERY PACK AND ADAPTOR, AND ELECTRIC TOOL WITH THE SAME 有权
    适配器,电池组和适配器组装,以及电动工具

    公开(公告)号:US20090108806A1

    公开(公告)日:2009-04-30

    申请号:US11856873

    申请日:2007-09-18

    IPC分类号: H02J7/00

    摘要: When a battery pack having an output voltage of 14.4 V that is connectable to an electric tool in a sliding manner is used as a power supply source for the electric tool that is connectable to a battery pack in an insertion manner and has a rated voltage of 12 V, the electric tool and the battery pack are connected to each other with an adaptor interposed therebetween. The adaptor has an FET that is switched at a predetermined duty of a predetermined frequency. The battery pack and the electric tool are connected or disconnected to or from each other by the switching operation, thereby dropping the output voltage of the battery pack. The voltage from the battery pack is detected. When the detected voltage is out of a predetermined value range, it is judged that the overcurrent or overdischarge has occurred. Then, the FET is turned off to stop the electric tool.

    摘要翻译: 当以滑动方式连接到电动工具的输出电压为14.4V的电池组被用作用于以插入方式连接到电池组的电动工具的电源,并且具有额定电压 12V,电动工具和电池组通过插入其间的适配器彼此连接。 适配器具有以预定频率的预定占空比切换的FET。 电池组和电动工具通过开关操作彼此连接或断开,从而降低电池组的输出电压。 检测到电池组的电压。 当检测到的电压超出预定值范围时,判断为发生过电流或过放电。 然后,关闭FET以停止电动工具。