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1. 发明申请

WO2015093056A1 MOTOR-DRIVE CONTROLLING DEVICE, POWER TOOL, AND MOTOR-DRIVE CONTROLLING METHOD 审中-公开
标题翻译：电动驱动控制装置，电动工具和电动机驱动控制方法
公开(公告)号：WO2015093056A1
公开(公告)日：2015-06-25
申请号：PCT/JP2014/006309
申请日：2014-12-17
申请人： HITACHI KOKI CO., LTD.
发明人： NOGUCHI, Yuta , IWATA, Kazutaka
IPC分类号： H02P6/16
CPC分类号： H02P6/16
摘要： A motor-drive controlling device includes: a motor; first position detecting means; induced voltage detecting means; second position detecting means; supplying means; drive state detecting means; and control means. The motor includes a rotor and a stator having a winding. The first position detecting means detects a rotational position of the rotor. The induced voltage detecting means detects an induced voltage generated in the winding. The second position detecting means detects a rotational position of the rotor based on the induced voltage. The supplying means supplies a drive voltage to the motor. The drive state detecting means detects a drive state of the motor. The control means is configured to choose one of the first and second position detecting means in response to the drive state, instruct the chosen one to provide a detected rotational position of the rotor, and control the supplying means based on the detected rotational position.
摘要翻译：电机驱动控制装置包括：马达; 第一位置检测装置; 感应电压检测装置; 第二位置检测装置; 供应装置; 驱动状态检测装置; 和控制装置。电动机包括转子和具有绕组的定子。第一位置检测装置检测转子的旋转位置。感应电压检测装置检测绕组中产生的感应电压。第二位置检测装置基于感应电压检测转子的旋转位置。供给装置向电动机提供驱动电压。驱动状态检测装置检测电动机的驱动状态。控制装置被配置为响应于驱动状态选择第一和第二位置检测装置中的一个，指示所选择的一个提供转子的检测到的旋转位置，并且基于检测到的旋转位置来控制供给装置。

2. 发明申请

WO2012127851A2 ELECTRIC POWER TOOL 审中-公开
标题翻译：电动工具
公开(公告)号：WO2012127851A2
公开(公告)日：2012-09-27
申请号：PCT/JP2012/001898
申请日：2012-03-19
申请人： HITACHI KOKI CO., LTD. , IWATA, Kazutaka , KOIZUMI, Toshiaki
发明人： IWATA, Kazutaka , KOIZUMI, Toshiaki
CPC分类号： H02P27/06 , H02K19/10 , H02P6/10 , H02P6/15 , H02P6/157 , H02P6/28 , H02P27/04
摘要： An electric power tool includes: a brushless motor having a plurality of stator windings and configured to rotate in accordance with voltages applied to the plurality of stator windings, an induced voltage being generated in accordance with a rotation of the brushless motor; a rectifier circuit configured to rectify an AC voltage; a smoothing capacitor configured to smooth the AC voltage rectified by the rectifier circuit to a pulsation voltage having a maximum value larger than the induced voltage and a minimum value smaller than the induced voltage; and an inverter circuit configured to perform switching operations to output the pulsation voltage to the plurality of stator windings by rotation.
摘要翻译：一种电动工具包括：无刷电动机，其具有多个定子绕组并且被配置为根据施加到多个定子绕组的电压而旋转，感应电压根据电动机的旋转产生无刷电机; 整流器电路，被配置为整流AC电压; 平滑电容器，被配置为将由整流电路整流的交流电压平滑为具有比感应电压大的最大值和小于感应电压的最小值的脉动电压; 以及逆变器电路，被配置为执行开关操作以通过旋转向多个定子绕组输出脉动电压。

3. 发明申请

WO2012043286A1 POWER TOOL 审中-公开
标题翻译：电动工具
公开(公告)号：WO2012043286A1
公开(公告)日：2012-04-05
申请号：PCT/JP2011/071291
申请日：2011-09-13
申请人： HITACHI KOKI CO., LTD. , ABE, Satoshi , OKUBO, Takahiro , IWATA, Kazutaka
发明人： ABE, Satoshi , OKUBO, Takahiro , IWATA, Kazutaka
IPC分类号： B25H1/00 , B23B49/00 , B25F5/00
CPC分类号： B23B49/00 , B23B49/006 , B23B2260/092 , B23B2260/128 , B23Q17/22 , B25F5/00 , B25H1/0092 , Y10T408/13 , Y10T408/21
摘要： A power tool includes: a motor driving an end bit; a housing accommodating the motor; a distance measuring sensor provided at the housing; and a controlling section connected to the distance measuring sensor. The controlling section is configured to exclude an abnormal value from measurement value measured by the distance measuring sensor.
摘要翻译：一种电动工具包括：一个驱动端头的电机; 容纳所述马达的壳体; 设置在所述壳体处的距离测量传感器; 以及与距离测量传感器连接的控制部。控制部被配置为从由距离测量传感器测量的测量值排除异常值。

4. 发明申请

WO2011129455A1 DRILLING DEVICE 审中-公开
标题翻译：钻井设备
公开(公告)号：WO2011129455A1
公开(公告)日：2011-10-20
申请号：PCT/JP2011/059470
申请日：2011-04-12
申请人： HITACHI KOKI CO., LTD. , OKUBO, Takahiro , ABE, Satoshi , IWATA, Kazutaka
发明人： OKUBO, Takahiro , ABE, Satoshi , IWATA, Kazutaka
IPC分类号： B25D16/00 , B25F5/00 , B23B49/00
CPC分类号： B25F5/008 , B23B49/00 , B25D16/006 , B25D2211/061 , B25D2216/0023 , B25D2216/0038 , Y10T408/21
摘要： A drilling device (1) drilling to a desired depth without a gauge. The drilling device includes a distance sensor (14) positioned on an imaginary line (I) spanning between a front end (60A) of the housing and a hand gripped portion (10C). The distance sensor is away form a front end of a gear housing (60) by a distance Ls. The distance sensor provides an effective measurement range. The relationship of L1 & le; Ls and Ls+Lb & le; L2 is satisfied where L1 represents a distance between the distance sensor and a point closest to the distance sensor and defining a lower limit of the effective measurement range, L2 represents a distance between the distance sensor and a point farthest from the distance sensor and defining an upper limit of the effective measurement range, and Lb represents a distance between the front end of the housing and a tip end of the end bit.
摘要翻译：钻孔装置（1）在没有量规的情况下钻孔到所需的深度。钻孔装置包括位于跨过壳体的前端（60A）和手抓住部分（10C）之间的假想线（I）上的距离传感器（14）。距离传感器离开形成齿轮壳体（60）的前端距离Ls。距离传感器提供有效的测量范围。 L1＆le的关系 Ls和Ls + Lb＆le; L2是满足的，其中L1表示距离传感器和最接近距离传感器的点之间的距离，并且限定有效测量范围的下限，L2表示距距离传感器与离距离传感器最远的点之间的距离，有效测量范围的上限，Lb表示壳体的前端与端部钻头的末端之间的距离。

5. 发明申请

WO2011013853A3 IMPACT TOOL 审中-公开
公开(公告)号：WO2011013853A3
公开(公告)日：2011-02-03
申请号：PCT/JP2010/063235
申请日：2010-07-29
申请人： Hitachi Koki Co., LTD. , TANIMOTO, Hideyuki , TAKANO, Nobuhiro , NISHIKAWA, Tomomasa , IWATA, Kazutaka , MASHIKO, Hironori , YAMAGUCHI, Hayato , NAKAGAWA, Atsushi , OOMORI, Katsuhiro , NAKAMURA, Mizuho , UCHIDA, Hiroki , NAKANO, Saroma , ITO, Yutaka
发明人： TANIMOTO, Hideyuki , TAKANO, Nobuhiro , NISHIKAWA, Tomomasa , IWATA, Kazutaka , MASHIKO, Hironori , YAMAGUCHI, Hayato , NAKAGAWA, Atsushi , OOMORI, Katsuhiro , NAKAMURA, Mizuho , UCHIDA, Hiroki , NAKANO, Saroma , ITO, Yutaka
IPC分类号： B25B21/02 , B25B23/147
摘要： According to an aspect of the present invention, there is provided an impact tool (1) (including: a motor (3)drivable in an intermittent driving mode; a hammer (41) connected to the motor; an anvil (16) to be struck by the hammer (41) to thereby rotate/strike a tip tool; and a control unit that controls a rotation of the motor (3)by switching a driving pulse supplied to the motor (3) in accordance with a load applied onto the tip tool.

6. 发明申请

WO2013147323A2 ELECTRIC TOOL AND FASTENING METHOD USING THE SAME 审中-公开
标题翻译：使用该工具的电动工具和紧固方法
公开(公告)号：WO2013147323A2
公开(公告)日：2013-10-03
申请号：PCT/JP2013/060401
申请日：2013-03-29
申请人： HITACHI KOKI CO., LTD.
发明人： TADOKORO, Naoki , IWATA, Kazutaka
IPC分类号： B25F5/00
CPC分类号： H02P6/001 , B25F5/00 , H02P6/34 , H02P7/06 , H02P31/00
摘要： An electric tool in which a pulsating input voltage is inputted to a drive circuit of a motor, characterized in that the electric tool includes: a control part configured to vary output power or output voltage supplied to the motor from the drive circuit in accordance with the pulsation of the input voltage inputted to the drive circuit.
摘要翻译：一种电动工具，其中脉动输入电压被输入到电动机的驱动电路，其特征在于，所述电动工具包括：控制部件，被配置为根据所述驱动电路从所述驱动电路改变向所述电动机供给的输出功率或输出电压输入到驱动电路的输入电压的脉动。

7. 发明申请

WO2012043288A1 POWER TOOL 审中-公开
标题翻译：电动工具
公开(公告)号：WO2012043288A1
公开(公告)日：2012-04-05
申请号：PCT/JP2011/071295
申请日：2011-09-13
申请人： HITACHI KOKI CO., LTD. , OKUBO, Takahiro , IWATA, Kazutaka
发明人： OKUBO, Takahiro , IWATA, Kazutaka
IPC分类号： B25D11/00 , B25F5/00
CPC分类号： B25F5/00 , B25D11/005 , B25D2211/006 , B25D2211/061 , B25D2250/095 , B25D2250/131 , B25D2250/221
摘要： A power tool (1) including: a housing configured to support an end bit (2), a motor accommodated in the housing (21), a transmission mechanism, a trigger switch (13), a load judging unit, and a motor stop control unit. The transmission mechanism transmits a rotational force of the motor to the end bit. The trigger switch (13) is configured to switch between instructions to the motor. The instructions include a rotation instruction for providing a rotation state of the motor and a stopping instruction for providing a stopping state of the motor. The load judging unit judges whether or not a load is applied to the end bit during rotation of the motor. The motor stop control unit stops the rotation of the motor irrespective of the instructions of the trigger switch when the load judging unit judges that no load is applied to the end bit (2) and a period of a non-load state exceeds a predetermined time period.
摘要翻译：一种动力工具（1），包括：壳体，其构造成支撑端部钻头（2），容纳在所述壳体（21）中的马达，传动机构，触发开关（13），负载判断单元和马达停止控制单元传动机构将电动机的旋转力传递到终点。触发开关（13）被配置为在电动机的指令之间切换。指令包括用于提供电动机的旋转状态的旋转指令和用于提供电动机的停止状态的停止指令。负载判断单元判断在电动机旋转期间是否向端部位施加负载。当负载判断单元判定没有负载施加到结束位（2）并且非负载状态的周期超过预定时间时，马达停止控制单元停止电动机的旋转，而不管触发开关的指令如何期。

8. 发明申请

WO2011122362A1 POWER TOOL 审中-公开
标题翻译：电动工具
公开(公告)号：WO2011122362A1
公开(公告)日：2011-10-06
申请号：PCT/JP2011/056485
申请日：2011-03-11
申请人： HITACHI KOKI CO., LTD. , MASHIKO, Hironori , TAKANO, Nobuhiro , IWATA, Kazutaka , NISHIKAWA, Tomomasa , OOMORI, Katsuhiro , NAKAMURA, Mizuho , ITO, Yutaka
发明人： MASHIKO, Hironori , TAKANO, Nobuhiro , IWATA, Kazutaka , NISHIKAWA, Tomomasa , OOMORI, Katsuhiro , NAKAMURA, Mizuho , ITO, Yutaka
IPC分类号： B25B21/02 , B25B23/14 , B25B23/147
CPC分类号： B25B21/02 , B25B21/026 , B25B23/1405 , B25B23/1475
摘要： An electronic pulse driver (1) includes a motor (3), a hammer (4), an anvil (5), an end tool mounting unit (51), a power supply unit (24), a temperature detecting unit, and a controller (72). The hammer (4) is drivingly rotatable in forward and reverse directions by the motor (3). The anvil (5) is provided separately from the hammer and rotated upon striking of the hammer. The power supply unit (24) alternately supplies a forward electric power and a reverse electric power to the motor in a first cycle. The temperature detecting unit is configured to detect a temperature of the motor. The controller (72) is configured to control the power supply unit to alternately supplies the forward electric power and the reverse electric power in a second cycle longer than the first cycle when the temperature of the motor detected by the temperature detecting unit increases to a prescribed value.
摘要翻译：电子脉冲驱动器（1）包括电动机（3），锤子（4），砧座（5），端部工具安装单元（51），电源单元（24），温度检测单元控制器（72）。锤（4）可通过马达（3）沿前后方向驱动旋转。砧座（5）与锤子分开设置，并且在击锤时旋转。电源单元（24）在第一周期中交替地向电动机提供正向电力和反向电力。温度检测单元被配置为检测电动机的温度。控制器（72）被配置为当由温度检测单元检测到的电动机的温度增加到规定的时间时，控制电源单元在比第一周期长的第二周期中交替地提供正向电力和反向电力值。

9. 发明申请

WO2010035547A1 POWER TOOL 审中-公开
标题翻译：电动工具
公开(公告)号：WO2010035547A1
公开(公告)日：2010-04-01
申请号：PCT/JP2009/059643
申请日：2009-05-20
申请人： Hitachi Koki Co., LTD. , OOMORI, Katsuhiro , TOUKAIRIN, Junichi , TAKANO, Nobuhiro , IWATA, Kazutaka , NISHIKAWA, Tomomasa
发明人： OOMORI, Katsuhiro , TOUKAIRIN, Junichi , TAKANO, Nobuhiro , IWATA, Kazutaka , NISHIKAWA, Tomomasa
IPC分类号： H02K29/00 , B25F5/00 , H01L23/13 , H02K11/00
CPC分类号： H02K9/06 , B25F5/00 , H01L2924/0002 , H02K7/145 , H02K11/215 , H02K11/33 , H05K1/181 , H05K3/341 , H05K2201/09027 , H05K2201/10166 , Y02P70/611 , H01L2924/00
摘要： According to an aspect of the present invention, there is provided a power tool including: a brushless motor; switching elements that drive the brushless motor; a circuit board on which the switching elements are mounted; a transmission portion that transmits a driving force of the brushless motor; and a housing that houses the brushless motor, the switching elements, the circuit board and the transmission portion therein, wherein the switching elements include semiconductor elements each having terminals on a bottom surface thereof, and wherein the switching elements are surface mounted on the circuit board.
摘要翻译：根据本发明的一个方面，提供了一种电动工具，包括：无刷电动机; 驱动无刷电机的开关元件; 其上安装有开关元件的电路板; 传递无刷电动机的驱动力的变速部; 以及容纳无刷电动机，开关元件，电路板和其中的传输部分的壳体，其中开关元件包括在其底表面上具有端子的半导体元件，并且其中开关元件表面安装在电路板上。

10. 发明申请

WO2009102082A3 ELECTRIC ROTATING TOOL 审中-公开
公开(公告)号：WO2009102082A3
公开(公告)日：2009-08-20
申请号：PCT/JP2009/053102
申请日：2009-02-16
申请人： HITACHI KOKI CO., LTD. , IWATA, Kazutaka , YOSHIDA, Kenichirou , WATANABE, Shinji
发明人： IWATA, Kazutaka , YOSHIDA, Kenichirou , WATANABE, Shinji
IPC分类号： B25B21/00 , B25F5/00 , H02P29/02 , H02H7/08
摘要： A current detection circuit (18) detects that a drive current of the stator coil (2d) is exceeding a threshold value Ir. A rotation number detection circuit (17) detects that the number of rotations of a rotor (2a) is lower than a threshold value Nr. A computing part (20) outputs a PWM signal which switches a semiconductor switching element (3a) of the inverter circuit part (3). The computing part (20) changes the threshold values Ir and Nr in accordance with the PWM duty of the PWM signal determined in accordance with a pressed distance of a switch trigger (7) and detects a locked state of the motor (2) on the conditions that the motor current I is exceeding the set threshold value Ir and that the number of rotations N thereof is lower than the threshold value Nr.

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