专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

WO2009102082A2 ELECTRIC ROTATING TOOL, CONTROL METHOD, AND PROGRAM 审中-公开
标题翻译：电动工具，控制方法和程序
公开(公告)号：WO2009102082A2
公开(公告)日：2009-08-20
申请号：PCT/JP2009053102
申请日：2009-02-16
申请人： HITACHI KOKI KK , IWATA KAZUTAKA , YOSHIDA KENICHIROU , WATANABE SHINJI
发明人： IWATA KAZUTAKA , YOSHIDA KENICHIROU , WATANABE SHINJI
IPC分类号： B25B21/00 , B25F5/00
CPC分类号： B25F5/00 , H02H7/0854 , H02P29/0241
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.
摘要翻译：电流检测电路（18）检测出定子线圈（2d）的驱动电流超过阈值Ir。旋转数检测电路（17）检测转子（2a）的转数低于阈值Nr。计算部件（20）输出切换逆变器电路部（3）的半导体开关元件（3a）的PWM信号。计算部件（20）根据根据开关触发器（7）的按压距离确定的PWM信号的PWM占空比来改变阈值Ir和Nr，并检测电动机（2）的锁定状态电动机电流I超过设定阈值Ir并且其转数N低于阈值Nr的条件。

2. 发明申请

WO2013147324A3 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：WO2013147324A3
公开(公告)日：2014-04-17
申请号：PCT/JP2013060402
申请日：2013-03-29
申请人： HITACHI KOKI KK
发明人： SAKAI HIRONORI , TADOKORO NAOKI , IWATA KAZUTAKA
IPC分类号： B25F5/00
CPC分类号： B25F5/001 , B25B21/02 , B25F5/00
摘要： An electric tool in which a pulsating input voltage is configured to be supplied to a drive circuit of a motor (3), the electric tool including: a rotation speed detection unit configured to detect a rotation speed (42) of the motor (3), characterized in that the electric tool further includes: a control part (8) configured to vary a determining value for determining whether the rotation speed of the motor (3) satisfies a predetermined condition or not, so as to be synchronous, with a pulsation cycle of the input voltage supplied to the drive circuit.
摘要翻译：一种电动工具，其中将脉动输入电压配置为提供给电动机（3）的驱动电路，所述电动工具包括：转速检测单元，被配置为检测所述电动机（3）的转速（42）其特征在于，所述电动工具还包括：控制部（8），其被配置为改变用于确定所述电动机（3）的转速是否满足预定条件的确定值，以便与脉动同步提供给驱动电路的输入电压的周期。

3. 发明申请

WO2011013853A2 IMPACT TOOL 审中-公开
标题翻译： IMPACT工具
公开(公告)号：WO2011013853A2
公开(公告)日：2011-02-03
申请号：PCT/JP2010063235
申请日：2010-07-29
申请人： HITACHI KOKI KK , 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
CPC分类号： B25B21/02 , B25B21/026 , B25B23/1475
摘要： According to an aspect of the present invention, there is provided an impact tool including: a motor drivable in an intermittent driving mode; a hammer connected to the motor; an anvil to be struck by the hammer to thereby rotate/strike a tip tool; and a control unit that controls a rotation of the motor by switching a driving pulse supplied to the motor in accordance with a load applied onto the tip tool.
摘要翻译：根据本发明的一个方面，提供了一种冲击工具，其包括：以间歇驱动模式驱动的马达; 连接到电机的锤子; 由锤子撞击的砧座，从而旋转/敲击尖端工具; 以及控制单元，其通过根据施加到所述尖端工具上的负载切换提供给所述电动机的驱动脉冲来控制所述电动机的旋转。

4. 发明申请

WO2014051167A3 ELECTRIC POWER TOOL 审中-公开
标题翻译：电动工具
公开(公告)号：WO2014051167A3
公开(公告)日：2014-09-25
申请号：PCT/JP2013077017
申请日：2013-09-27
申请人： HITACHI KOKI KK
发明人： IWATA KAZUTAKA
IPC分类号： H02P27/08 , H02P7/00 , H02P7/29
CPC分类号： H02P7/28 , B25F5/00 , H02P7/29 , H02P27/085 , H02P31/00
摘要： An electric power tool comprising a voltage conversion circuit configured to control magnitude of a voltage applied to a motor in accordance with magnitude of load.
摘要翻译：一种电动工具，包括电压转换电路，其被配置为根据负载的大小控制施加到电动机的电压的大小。

5. 发明申请

WO2013147323A3 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：WO2013147323A3
公开(公告)日：2014-04-17
申请号：PCT/JP2013060401
申请日：2013-03-29
申请人： HITACHI KOKI KK
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 (1) in which a pulsating input voltage is inputted to a drive circuit of a motor (3), characterized in that the electric tool includes: a control part (8) 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（1），其中脉动输入电压被输入到电动机（3）的驱动电路，其特征在于，所述电动工具包括：控制部分（8），被配置为改变输出功率或输出电压根据输入到驱动电路的输入电压的脉动，驱动电路的电动机。

6. 发明申请

WO2012127851A3 ELECTRIC POWER TOOL 审中-公开
标题翻译：电动工具
公开(公告)号：WO2012127851A3
公开(公告)日：2012-11-29
申请号：PCT/JP2012001898
申请日：2012-03-19
申请人： HITACHI KOKI KK , IWATA KAZUTAKA , KOIZUMI TOSHIAKI
发明人： IWATA KAZUTAKA , KOIZUMI TOSHIAKI
IPC分类号： H02P6/14
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，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进行旋转，根据无刷电动机的旋转产生感应电压; 整流电路，被配置为对AC电压进行整流; 平滑电容器，被配置为将由整流器电路整流的AC电压平滑到具有大于感应电压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，被配置为执行切换操作，以通过旋转将脉动电压输出到多个定子绕组。

7. 发明申请

WO2009107563A2 ELECTRIC ROTATING TOOL, CONTROL METHOD, AND PROGRAM 审中-公开
标题翻译：电动工具，控制方法和程序
公开(公告)号：WO2009107563A2
公开(公告)日：2009-09-03
申请号：PCT/JP2009053100
申请日：2009-02-16
申请人： HITACHI KOKI KK , IWATA KAZUTAKA
发明人： IWATA KAZUTAKA
CPC分类号： B25B21/00 , B25B23/147 , H02P29/032
摘要： Tightening torque is appropriately managed by a simple means. An electric rotating tool (40) has a brushless DC motor (2), an inverter circuit part (3), and a control circuit part (4). The control circuit part (4) has a current detecting circuit (18), which detects a motor current I, a rotation number detecting circuit (17), which detects the number of rotations of the motor (N), and a computing part (19), which calculates first tightening torque (T1) based on the detection information of the motor current (I) and calculates second tightening torque (T2) based on the number of rotations of the motor (N). The computing part (19) estimates tightening torque Tave based on the estimate value of the first tightening torque (T1) or the second tightening torque (T2). The computing part (19) stops driving the motor (2) when the estimated tightening torque Tave exceeds a set value Tset.
摘要翻译：通过简单的手段适当地管理紧固扭矩。电动旋转工具（40）具有无刷直流电动机（2），逆变器电路部（3）和控制电路部（4）。控制电路部分（4）具有检测电动机电流I的电流检测电路（18），检测电动机（N）的转数的转数检测电路（17）和计算部 19），其基于电动机电流（I）的检测信息来计算第一紧固扭矩（T1），并且基于电动机（N）的转数来计算第二紧固扭矩（T2）。计算部件（19）基于第一紧固扭矩（T1）或第二紧固扭矩（T2）的估计值来估计紧固扭矩Tave。当估计紧固扭矩Tave超过设定值Tset时，计算部件（19）停止驱动马达（2）。

8. 发明专利

DE102008020144A1 未知
公开(公告)号：DE102008020144A1
公开(公告)日：2008-10-30
申请号：DE102008020144
申请日：2008-04-22
申请人： HITACHI KOKI KK
发明人： YOSHIDA KANICHIROU , OOMORI KATSUHIRO , KOMURO YOSHIHIRO , IWATA KAZUTAKA
IPC分类号： H02K5/20 , B25F5/00 , H02K5/04 , H02K9/04
摘要： A power tool includes a housing, a brushless motor, and a cover member. The housing has an air intake hole and an air exhaust hole formed therein, the housing having an inner surface. The brushless motor has an outer surface disposed in the housing, a first endface near the air intake hole, and a second endface near the air exhaust hole. The cover member covers at least one of the first endface and the second endface for preventing dust from entering the brushless motor. The inner surface of the housing and outer surface of the brushless motor define a circulation path providing communication between the air intake hole and the air exhaust hole.

9. 发明专利

AU2015215860B2 Electric power tool 未知
公开(公告)号：AU2015215860B2
公开(公告)日：2017-04-06
申请号：AU2015215860
申请日：2015-08-19
申请人： HITACHI KOKI KK
发明人： IWATA KAZUTAKA , KOIZUMI TOSHIAKI
IPC分类号： H02P6/14
摘要： An electric power tool (lA-lE) is disclosed having a brushless motor (5). The brushless motor (5) has a stator having a plurality of stator windings to which an AC voltage is applied from an AC power source, and a rotor rotatable relative to the stator. An end tool is also provided that is driven in accordance with the rotation of the rotor. An inverter circuit (8) is configured to perform switching operations to output the pulsation voltage to the plurality of stator windings by rotation, even if the AC voltage is smaller than a preset voltage.

10. 发明专利

CA2755763A1 IMPACT TOOL 未知
公开(公告)号：CA2755763A1
公开(公告)日：2011-02-03
申请号：CA2755763
申请日：2010-07-29
申请人： HITACHI KOKI KK
发明人： TANIMOTO HIDEYUKI , TAKANO NOBUHIRO , NISHIKAWA TOMOMASA , IWATA KAZUTAKA , MASHIKO HIRONORI , YAMAGUCHI HAYATO , NAKAGAWA ATSUSHI , OOMORI KATSUHIRO , NAKAMURA MIKUHO , 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.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式