公开(公告)号：US09024549B2

公开(公告)日：2015-05-05

申请号：US13245260

申请日：2011-09-26

申请人： Pingbo Shi ,  Dezhong Yang

发明人： Pingbo Shi ,  Dezhong Yang

IPC分类号： H02P1/00 ,  H02P29/00 ,  H02P29/02

CPC分类号： H02P29/0055 ,  H02P29/032 ,  H02P29/64

摘要： An over-temperature protection circuit for a direct current (DC) electric tool includes a current detecting circuit electrically coupled to a battery pack, a power device control circuit electrically coupled to an electric motor of the DC electric tool and a power device for controlling the power state of the circuit. A computation control circuit controls the power supply of the motor according to the circuit current value detected by the current detecting circuit. When the electric motor is not in a speed control state, the allowable current passing through the over-temperature protection circuit of the DC electric tool cannot exceed a preset first current value. When the electric motor is in the speed control state, the allowable current passing through the over-temperature protection circuit of the DC electric tool cannot exceed a preset second current value less than the first current value.

摘要翻译： 用于直流（DC）电动工具的过热保护电路包括电耦合到电池组的电流检测电路，电连接到DC电动工具的电动机的电力设备控制电路和用于控制 电路的电源状态。 计算控制电路根据由电流检测电路检测的电路电流值来控制电动机的电源。 当电动机不处于速度控制状态时，通过直流电动工具的过热保护电路的允许电流不能超过预设的第一电流值。 当电动机处于速度控制状态时，通过直流电动工具的过热保护电路的允许电流不能超过小于第一电流值的预设的第二电流值。

公开(公告)号：US20120074877A1

公开(公告)日：2012-03-29

申请号：US13245260

申请日：2011-09-26

申请人： Pingbo Shi ,  Dezhong Yang

发明人： Pingbo Shi ,  Dezhong Yang

IPC分类号： H02P7/285

CPC分类号： H02P29/0055 ,  H02P29/032 ,  H02P29/64

摘要： An over-temperature protection circuit for a direct current (DC) electric tool includes a current detecting circuit electrically coupled to a battery pack, a power device control circuit electrically coupled to an electric motor of the DC electric tool and a power device for controlling the power state of the circuit. A computation control circuit controls the power supply of the motor according to the circuit current value detected by the current detecting circuit. When the electric motor is not in a speed control state, the allowable current passing through the over-temperature protection circuit of the DC electric tool cannot exceed a preset first current value. When the electric motor is in the speed control state, the allowable current passing through the over-temperature protection circuit of the DC electric tool cannot exceed a preset second current value less than the first current value.

摘要翻译： 用于直流（DC）电动工具的过热保护电路包括电耦合到电池组的电流检测电路，电连接到DC电动工具的电动机的电力设备控制电路和用于控制 电路的电源状态。 计算控制电路根据由电流检测电路检测的电路电流值来控制电动机的电源。 当电动机不处于速度控制状态时，通过直流电动工具的过热保护电路的允许电流不能超过预设的第一电流值。 当电动机处于速度控制状态时，通过直流电动工具的过热保护电路的允许电流不能超过小于第一电流值的预设的第二电流值。

公开(公告)号：US20130055574A1

公开(公告)日：2013-03-07

申请号：US13596681

申请日：2012-08-28

申请人： Fangjie Nie ,  Qi Zhang ,  Pingbo Shi

发明人： Fangjie Nie ,  Qi Zhang ,  Pingbo Shi

IPC分类号： A01G3/037

CPC分类号： B26B15/00

摘要： A power tool includes a replaceable blade, a fixing device for clamping and securing the blade, a control circuit for controlling a driving device, and a main switch electrically connected to the control circuit. A safety device prevents the blade from moving when the fixing device is opened.

摘要翻译： 电动工具包括可更换刀片，用于夹紧和固定刀片的固定装置，用于控制驱动装置的控制电路和电连接到控制电路的主开关。 当固定装置打开时，安全装置防止刀片移动。

公开(公告)号：US20120246942A1

公开(公告)日：2012-10-04

申请号：US13427177

申请日：2012-03-22

申请人： Fangjie Nie ,  Qi Zhang ,  Pingbo Shi

发明人： Fangjie Nie ,  Qi Zhang ,  Pingbo Shi

IPC分类号： A01G3/033 ,  B26B15/00

CPC分类号： A01G3/037

摘要： A power pruner includes a housing, a motor arranged in the housing, a transmission device connected to the motor, a pair of blades and a trigger which is arranged on the housing and used to control the motor. The pair of blades include a fixed blade and a movable blade which is driven by the motor to swing back and forth. The power pruner additionally includes a stroke switch which is arranged on the housing and has at least two statuses wherein the movable blade has a first stroke when the stroke switch is in a first status and a second stroke different from the first stroke when the stroke switch is in a second status.

摘要翻译： 电动修剪机包括壳体，布置在壳体中的电动机，连接到电动机的传动装置，一对叶片和触发器，其布置在壳体上并用于控制电动机。 一对刀片包括固定刀片和可动刀片，该刀片由马达驱动以前后摆动。 动力修剪器还包括行程开关，其布置在壳体上并且具有至少两种状态，其中当行程开关处于第一状态时可动刀片具有第一冲程，并且当行程开关 处于第二个状态。

公开(公告)号：US08893390B2

公开(公告)日：2014-11-25

申请号：US13596681

申请日：2012-08-28

申请人： Fangjie Nie ,  Qi Zhang ,  Pingbo Shi

发明人： Fangjie Nie ,  Qi Zhang ,  Pingbo Shi

IPC分类号： B26B13/04

CPC分类号： B26B15/00

摘要： A power tool includes a replaceable blade, a fixing device for clamping and securing the blade, a control circuit for controlling a driving device, and a main switch electrically connected to the control circuit. A safety device prevents the blade from moving when the fixing device is opened.

摘要翻译： 电动工具包括可更换刀片，用于夹紧和固定刀片的固定装置，用于控制驱动装置的控制电路和电连接到控制电路的主开关。 当固定装置打开时，安全装置防止刀片移动。