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1. 发明授权

US08616300B2 Power tool having an illuminator 有权
公开(公告)号：US08616300B2
公开(公告)日：2013-12-31
申请号：US12457092
申请日：2009-06-01
申请人： Jiro Suzuki , Hirokatsu Yamamoto , Takuya Kusakawa
发明人： Jiro Suzuki , Hirokatsu Yamamoto , Takuya Kusakawa
IPC分类号： E02F9/20
CPC分类号： B25F5/021
摘要： A power tool of the present teachings comprises a prime mover that drives a tool, a main switch that causes the prime mover to operate when the main switch is turned on and causes the prime mover to stop operating when the main switch is turned off, an illuminator that lights a working area of the tool, and a lighting mode selector switch for switching the lighting mode of the illuminator between a plurality of lighting modes which include a first lighting mode and a second lighting mode. When the first lighting mode is selected, the illuminator will be turned on for a first predetermined period from the point at which the main switch is turned off. When the second lighting mode is selected, the illuminator will not be turned on during the first predetermined period from the point at which the main switch is turned off.

2. 发明申请

US20090309519A1 Power tool having an illuminator 有权
标题翻译：具有照明器的电动工具
公开(公告)号：US20090309519A1
公开(公告)日：2009-12-17
申请号：US12457092
申请日：2009-06-01
申请人： Jiro Suzuki , Hirokatsu Yamamoto , Takuya Kusakawa
发明人： Jiro Suzuki , Hirokatsu Yamamoto , Takuya Kusakawa
IPC分类号： H05B37/00
CPC分类号： B25F5/021
摘要： A power tool of the present teachings comprises a prime mover that drives a tool, a main switch that causes the prime mover to operate when the main switch is turned on and causes the prime mover to stop operating when the main switch is turned off, an illuminator that lights a working area of the tool, and a lighting mode selector switch for switching the lighting mode of the illuminator between a plurality of lighting modes which include a first lighting mode and a second lighting mode. When the first lighting mode is selected, the illuminator will be turned on for a first predetermined period from the point at which the main switch is turned off. When the second lighting mode is selected, the illuminator will not be turned on during the first predetermined period from the point at which the main switch is turned off.
摘要翻译：本教导的电动工具包括驱动工具的原动机，当主开关接通时使原动机工作的主开关，并且当主开关关闭时使原动机停止工作，点亮工具的工作区域的照明器，以及用于在包括第一照明模式和第二照明模式的多个照明模式之间切换照明器的照明模式的照明模式选择器开关。当选择第一照明模式时，照明器将从主开关关闭的点开始第一预定时段。当选择第二照明模式时，在从主开关关闭的点开始的第一预定时段期间，照明器将不会被接通。

3. 发明授权

US08264189B2 Motor controller and electric power tool having the same 失效
标题翻译：电动机控制器和电动工具具有相同的功能
公开(公告)号：US08264189B2
公开(公告)日：2012-09-11
申请号：US12450187
申请日：2008-02-22
申请人： Takashi Matsunaga , Hirokatsu Yamamoto , Takuya Kusakawa
发明人： Takashi Matsunaga , Hirokatsu Yamamoto , Takuya Kusakawa
IPC分类号： H02P1/46
CPC分类号： H02K7/116 , H02K7/14 , H02M7/5395 , H02P6/06
摘要： A motor controller is provided with a first PWM circuit that repeatedly outputs an on-signal at a first carrier frequency, a second PWM circuit that repeatedly outputs an on-signal at a second carrier frequency that is lower than the first carrier frequency, an AND circuit that receives both the on-signal outputted from the first PWM circuit and the on-signal outputted from the second PWM circuit and outputs a third on-signal which is a logical product of the received on-signals, and a voltage apply circuit that applies a voltage to the motor intermittently in synchronization with the third on-signal outputted from the AND circuit. At least one of the first carrier frequency and the second carrier frequency is equal to or lower than 1 kHz or equal to or higher than 3 kHz. As a result, generation of an unpleasant noise by a motor controller using two PWM circuits may be suppressed.
摘要翻译：电动机控制器设置有以第一载波频率重复输出接通信号的第一PWM电路，在低于第一载波频率的第二载波频率重复输出导通信号的第二PWM电路，AND 接收从第一PWM电路输出的导通信号和从第二PWM电路输出的导通信号的电路，并输出作为接收的接通信号的逻辑积的第三导通信号，以及电压施加电路，与AND电路输出的第三导通信号同步地间歇地向电动机施加电压。第一载波频率和第二载波频率中的至少一个等于或低于1kHz或等于或高于3kHz。结果，可以抑制由使用两个PWM电路的电动机控制器产生不愉快的噪声。

4. 发明授权

US08193753B2 Motor controller and electric power tool having the same 失效
标题翻译：电动机控制器和电动工具具有相同的功能
公开(公告)号：US08193753B2
公开(公告)日：2012-06-05
申请号：US12450186
申请日：2008-02-22
申请人： Takashi Matsunaga , Hirokatsu Yamamoto , Takuya Kusakawa
发明人： Takashi Matsunaga , Hirokatsu Yamamoto , Takuya Kusakawa
IPC分类号： G05B11/28
CPC分类号： B25F5/00 , H02P6/06
摘要： A motor controller is provided with a velocity processing unit that determines a corrected target rotation velocity by correcting the inputted target rotation velocity of the motor in accordance with a velocity deviation between the inputted target rotation velocity and an actual rotation velocity detected from the motor, a first PWM circuit that repeatedly outputs an on-signal having a first pulse width at a first carrier frequency, wherein the first pulse width of the on-signal is modulated by the first PWM circuit in accordance with the corrected target rotation velocity, a second PWM circuit that repeatedly outputs an on-signal having a second pulse width at a second carrier frequency, wherein the second pulse width is different from the first pulse width, the second carrier frequency is lower than the first carrier frequency, and the second pulse width of the on-signal is modulated by the second PWM circuit in accordance with the corrected target rotation velocity, an AND circuit that receives the on-signal outputted from the first PWM circuit and the on-signal outputted from the second PWM circuit and outputs third on-signal which is a logical product of the on-signals, and a voltage apply circuit that applies voltage to the motor intermittently in synchronization with the third on-signal outputted from the AND circuit. As a result, the rotation velocity of the motor may be correctly controlled.
摘要翻译：电动机控制器具有速度处理单元，速度处理单元通过根据输入的目标转速与从电动机检测到的实际转速之间的速度偏差校正马达的输入目标转速来确定修正的目标转速，第一PWM电路，其以第一载波频率重复地输出具有第一脉冲宽度的导通信号，其中所述导通信号的所述第一脉冲宽度由所述第一PWM电路根据所述修正的目标旋转速度进行调制，第二PWM 电路，其以第二载波频率重复输出具有第二脉冲宽度的导通信号，其中所述第二脉冲宽度不同于所述第一脉冲宽度，所述第二载波频率低于所述第一载波频率，并且所述第二脉冲宽度根据校正的目标旋转速度AND电路，由第二PWM电路对接通信号进行调制其接收从第一PWM电路输出的导通信号和从第二PWM电路输出的导通信号，并输出作为导通信号的逻辑积的第三导通信号，以及将电压施加到电机与AND电路输出的第三导通信号同步地间歇地进行。结果，可以正确地控制马达的旋转速度。

5. 发明申请

US20100019716A1 MOTOR CONTROLLER AND ELECTRIC POWER TOOL HAVING THE SAME 失效
标题翻译：电机控制器及具有该电动工具的电动工具
公开(公告)号：US20100019716A1
公开(公告)日：2010-01-28
申请号：US12450187
申请日：2008-02-22
申请人： Takashi Matsunaga , Hirokatsu Yamamoto , Takuya Kusakawa
发明人： Takashi Matsunaga , Hirokatsu Yamamoto , Takuya Kusakawa
IPC分类号： H02P23/00
CPC分类号： H02K7/116 , H02K7/14 , H02M7/5395 , H02P6/06
摘要： A motor controller is provided with a first PWM circuit that repeatedly outputs an on-signal at a first carrier frequency, a second PWM circuit that repeatedly outputs an on-signal at a second carrier frequency that is lower than the first carrier frequency, an AND circuit that receives both the on-signal outputted from the first PWM circuit and the on-signal outputted from the second PWM circuit and outputs a third on-signal which is a logical product of the received on-signals, and a voltage apply circuit that applies a voltage to the motor intermittently in synchronization with the third on-signal outputted from the AND circuit. At least one of the first carrier frequency and the second carrier frequency is equal to or lower than 1 kHz or equal to or higher than 3 kHz. As a result, generation of an unpleasant noise by a motor controller using two PWM circuits may be suppressed.
摘要翻译：电动机控制器设置有以第一载波频率重复输出接通信号的第一PWM电路，在低于第一载波频率的第二载波频率重复输出导通信号的第二PWM电路，AND 接收从第一PWM电路输出的导通信号和从第二PWM电路输出的导通信号的电路，并输出作为接收的接通信号的逻辑积的第三导通信号，以及电压施加电路，与AND电路输出的第三导通信号同步地间歇地向电动机施加电压。第一载波频率和第二载波频率中的至少一个等于或低于1kHz或等于或高于3kHz。结果，可以抑制由使用两个PWM电路的电动机控制器产生不愉快的噪声。

6. 发明申请

US20090051306A1 Electric power tool, control unit and recording medium 失效
标题翻译：电动工具，控制单元和记录介质
公开(公告)号：US20090051306A1
公开(公告)日：2009-02-26
申请号：US12222650
申请日：2008-08-13
申请人： Yutaka Matsunaga , Hirokatsu Yamamoto , Takuya Kusakawa
发明人： Yutaka Matsunaga , Hirokatsu Yamamoto , Takuya Kusakawa
IPC分类号： H02P1/18
CPC分类号： B25F5/00 , H02P6/08
摘要： An electric power tool includes a direct current motor, at least one switching device, a trigger switch, a control unit, and a drive unit. The control unit sets a driving duty ratio for PWM controlling the direct current motor so as to increase the driving duty ratio in a stepwise manner in accordance with an operation continuation time of the trigger switch during a period from when an operation of the trigger switch is started until when a predetermined start-up time has elapsed.
摘要翻译：电动工具包括直流电动机，至少一个开关装置，触发开关，控制单元和驱动单元。控制单元设定用于PWM控制直流电动机的驱动占空比，以便在触发开关的操作从触发开关的操作期间起触发开关的操作持续时间以逐步的方式增加驱动占空比开始直到经过预定的启动时间。

7. 发明授权

US08179069B2 Electric power tool, control unit and recording medium 失效
标题翻译：电动工具，控制单元和记录介质
公开(公告)号：US08179069B2
公开(公告)日：2012-05-15
申请号：US12222650
申请日：2008-08-13
申请人： Yutaka Matsunaga , Hirokatsu Yamamoto , Takuya Kusakawa
发明人： Yutaka Matsunaga , Hirokatsu Yamamoto , Takuya Kusakawa
IPC分类号： H02P7/00
CPC分类号： B25F5/00 , H02P6/08
摘要： An electric power tool includes a direct current motor, at least one switching device, a trigger switch, a control unit, and a drive unit. The control unit sets a driving duty ratio for PWM controlling the direct current motor so as to increase the driving duty ratio in a stepwise manner in accordance with an operation continuation time of the trigger switch during a period from when an operation of the trigger switch is started until when a predetermined start-up time has elapsed.
摘要翻译：电动工具包括直流电动机，至少一个开关装置，触发开关，控制单元和驱动单元。控制单元设定用于PWM控制直流电动机的驱动占空比，以便在触发开关的操作从触发开关的操作期间起触发开关的操作持续时间以逐步的方式增加驱动占空比开始直到经过预定的启动时间。

8. 发明申请

US20100027979A1 MOTOR CONTROLLER AND ELECTRIC POWER TOOL HAVING THE SAME 失效
标题翻译：电机控制器及具有该电动工具的电动工具
公开(公告)号：US20100027979A1
公开(公告)日：2010-02-04
申请号：US12450186
申请日：2008-02-22
申请人： Takashi Matsunaga , Hirokatsu Yamamoto , Takuya Kusakawa
发明人： Takashi Matsunaga , Hirokatsu Yamamoto , Takuya Kusakawa
IPC分类号： H02P7/29
CPC分类号： B25F5/00 , H02P6/06
摘要： A motor controller is provided with a velocity processing unit that determines a corrected target rotation velocity by correcting the inputted target rotation velocity of the motor in accordance with a velocity deviation between the inputted target rotation velocity and an actual rotation velocity detected from the motor, a first PWM circuit that repeatedly outputs an on-signal having a first pulse width at a first carrier frequency, wherein the first pulse width of the on-signal is modulated by the first PWM circuit in accordance with the corrected target rotation velocity, a second PWM circuit that repeatedly outputs an on-signal having a second pulse width at a second carrier frequency, wherein the second pulse width is different from the first pulse width, the second carrier frequency is lower than the first carrier frequency, and the second pulse width of the on-signal is modulated by the second PWM circuit in accordance with the corrected target rotation velocity, an AND circuit that receives the on-signal outputted from the first PWM circuit and the on-signal outputted from the second PWM circuit and outputs third on-signal which is a logical product of the on-signals, and a voltage apply circuit that applies voltage to the motor intermittently in synchronization with the third on-signal outputted from the AND circuit. As a result, the rotation velocity of the motor may be correctly controlled.
摘要翻译：电动机控制器具有速度处理单元，速度处理单元通过根据输入的目标转速与从电动机检测到的实际转速之间的速度偏差校正马达的输入目标转速来确定修正的目标转速，第一PWM电路，其以第一载波频率重复地输出具有第一脉冲宽度的导通信号，其中所述导通信号的所述第一脉冲宽度由所述第一PWM电路根据所述修正的目标旋转速度进行调制，第二PWM 电路，其以第二载波频率重复输出具有第二脉冲宽度的导通信号，其中所述第二脉冲宽度不同于所述第一脉冲宽度，所述第二载波频率低于所述第一载波频率，并且所述第二脉冲宽度根据校正的目标旋转速度AND电路，由第二PWM电路对接通信号进行调制其接收从第一PWM电路输出的导通信号和从第二PWM电路输出的导通信号，并输出作为导通信号的逻辑积的第三导通信号，以及将电压施加到电机与AND电路输出的第三导通信号同步地间歇地进行。结果，可以正确地控制马达的旋转速度。

9. 发明授权

US08294399B2 Motor controller and electric tool having the same 失效
标题翻译：电机控制器和电动工具具有相同的功能
公开(公告)号：US08294399B2
公开(公告)日：2012-10-23
申请号：US12734645
申请日：2008-12-01
申请人： Jiro Suzuki , Takuya Kusakawa
发明人： Jiro Suzuki , Takuya Kusakawa
IPC分类号： H02P1/04 , H02P1/24 , H02P25/14 , H02P7/06 , H02P6/00 , E21B15/04 , E21B3/00 , B25D13/00
CPC分类号： B25F5/00 , B25B21/02 , H02P6/12 , H02P6/24 , H02P6/28 , H02P29/032
摘要： A motor controller comprises a processor selectively outputting an on-signal to either one of an upper arm switching element and a lower arm switching element based upon a detected position by the position sensor, gate drivers inputting a driving voltage to the gates of the switching elements by shifting a level of the on-signal from the processor to the upper arm switching element and a bootstrap capacitor configured to be charged while the upper arm switching element is turned off and to behave as a voltage supply for the gate driver while the upper arm switching element is turned on. The processor is configured to reduce a set duty ratio when the set duty ratio is equal to or larger than a predetermined value (e.g. 80 percents) and a rotational position of the motor does not change for a first predetermined time. This motor controller can prevent the switching element from a burnout even if the motor is locked.
摘要翻译：电动机控制器包括：处理器基于位置传感器的检测位置，选择性地将接通信号输出到上臂开关元件和下臂开关元件中的任一个，栅极驱动器将驱动电压输入到开关元件的栅极通过将来自处理器的导通信号的电平移动到上臂开关元件和被配置为在上臂开关元件关闭时被充电并且作为栅极驱动器的电压供应而起作用的自举电容器，而上臂开关元件导通。处理器被配置为当设定的占空比等于或大于预定值（例如80％）时减小设定的占空比，并且电动机的旋转位置在第一预定时间内不改变。即使电机被锁定，该电机控制器也可以防止开关元件烧坏。

10. 发明授权

US08075155B2 Electric power tool 有权
标题翻译：电动工具
公开(公告)号：US08075155B2
公开(公告)日：2011-12-13
申请号：US12289787
申请日：2008-11-04
申请人： Masahiro Watanabe , Jiro Suzuki , Takuya Kusakawa
发明人： Masahiro Watanabe , Jiro Suzuki , Takuya Kusakawa
IPC分类号： B25B23/18
CPC分类号： B25F5/00 , Y10T307/832 , Y10T307/944
摘要： An electric power tool, which comprises a motor that drives a tool, a power source unit that applies voltage to the motor, a main switching circuit that makes/breaks an electrical connection between the power source unit and the motor, an illuminator that illuminates a work spot, a switching device that electrically connects the illuminator to the power source unit, and an OR circuit that is electrically connected to terminals of the motor to the base terminal is provided. The OR circuit electrically connects one of the motor terminals at which a voltage is higher to the base terminal.
摘要翻译：一种电动工具，其包括驱动工具的电动机，向所述电动机施加电压的电源单元，使所述电源单元和所述电动机之间的电连接断开的主开关电路;照明器提供了将照明器电连接到电源单元的开关装置和与电动机的端子电连接到基座端子的“或”电路。 OR电路将电压较高的电动机端子之一电连接到基座端子。

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