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1. 发明授权

US09808872B2 Portable electric cutter 有权
公开(公告)号：US09808872B2
公开(公告)日：2017-11-07
申请号：US14379184
申请日：2013-03-13
申请人： HITACHI KOKI CO., LTD.
发明人： Hayato Yamaguchi , Hideyuki Tanimoto , Kenichirou Yoshida , Shinji Kuragano
IPC分类号： B23D45/16 , B25F5/00
CPC分类号： B23D45/16 , B25F5/008
摘要： A portable electric cutter includes a housing 2 in which a motor 1 is accommodated, a saw blade driven to rotate by the motor, a base 6 coupled to the housing 2 and having a bottom surface slidable on a surface of a material to be cut, a fan 7 driven to rotate by the motor, a driving circuit for switching power supplied to the motor, and a control circuit for controlling the driving circuit. A circuit board 60 on which the driving circuit, the control circuit and others are mounted is provided, motor cooling air vents are provided in the housing 2 on a side opposite to the saw blade, and circuit board cooling air vents are provided in the housing 2 on the side opposite to the saw blade.

2. 发明授权

US09774017B2 Electric device body and electric device 有权
公开(公告)号：US09774017B2
公开(公告)日：2017-09-26
申请号：US14760603
申请日：2014-01-14
申请人： Hitachi Koki Co., Ltd.
发明人： Hiroki Uchida , Yoshihiro Nakano , Yoshihiro Komuro , Tetsuhiro Harada , Hideyuki Tanimoto
IPC分类号： H01M10/052 , H01M2/10 , B25F5/00
CPC分类号： H01M2/1055 , B25F5/00 , H01M2220/30
摘要： An electric device body in which a battery pack including a plurality of battery cells and a plurality of first terminals is detachably mounted includes: a housing; a guide mechanism; and a plurality of second terminals; and a pressed portion. The battery pack is configured to be attached to and detached from the housing along a first direction. The guide mechanism is provided at the housing and configured to define the first direction. The plurality of second terminals is configured to be connected to the plurality of first terminals upon attachment of the battery pack to the housing. The pressed portion is configured to be pressed against the battery pack in a second direction intersecting the first direction when the battery pack has been attached to the housing.

3. 发明申请

US20150026985A1 PORTABLE ELECTRIC CUTTER 有权
标题翻译：便携式电动切割机
公开(公告)号：US20150026985A1
公开(公告)日：2015-01-29
申请号：US14379184
申请日：2013-03-13
申请人： HITACHI KOKI CO., LTD.
发明人： Hayato Yamaguchi , Hideyuki Tanimoto , Kenichirou Yoshida , Shinji Kuragno
IPC分类号： B25F5/00 , B23D45/16
CPC分类号： B23D45/16 , B25F5/008
摘要： A portable electric cutter includes a housing 2 in which a motor 1 is accommodated, a saw blade driven to rotate by the motor, a base 6 coupled to the housing 2 and having a bottom surface slidable on a surface of a material to be cut, a fan 7 driven to rotate by the motor, a driving circuit for switching power supplied to the motor, and a control circuit for controlling the driving circuit. A circuit board 60 on which the driving circuit, the control circuit and others are mounted is provided, motor cooling air vents are provided in the housing 2 on a side opposite to the saw blade, and circuit board cooling air vents are provided in the housing 2 on the side opposite to the saw blade.
摘要翻译：便携式电动切割机包括容纳马达1的壳体2，由马达驱动旋转的锯片，与壳体2连接并具有可在待切割材料的表面上滑动的底面的基座6，由马达驱动旋转的风扇7，用于切换供给马达的电力的驱动电路，以及用于控制驱动电路的控制电路。设置有安装有驱动电路，控制电路等的电路板60，电机冷却通风口设置在壳体2的与锯片相反的一侧，并且电路板冷却通风口设置在壳体 2在与锯片相对的一侧。

4. 发明授权

US09397535B2 Brushless motor and electric-powered tool 有权
标题翻译：无刷电机和电动工具
公开(公告)号：US09397535B2
公开(公告)日：2016-07-19
申请号：US13958838
申请日：2013-08-05
申请人： HITACHI KOKI CO., LTD.
发明人： Hayato Yamaguchi , Hideyuki Tanimoto
IPC分类号： H02K7/14 , H02K9/06 , H02K1/27
CPC分类号： H02K9/06 , H02K1/276 , H02K7/145
摘要： In a brushless motor, a rotor core is fixed to a shaft. Through holes are formed in the rotor core, and permanent magnets are inserted to be fixed in place in the through holes. A stator core is fixed to an outer circumferential surface of the rotor core such that the stator core faces the outer circumferential surface of the rotor core. Stator coils are provided on the stator core via insulators so as to configure magnetic flux generating portions. A cooling fan is provided in front of a stator which is configured by the stator core and the stator coils. Axial position of blades of the fan and axial positions of the rotor core and the permanent magnets partially overlap each other in their positions.
摘要翻译：在无刷电动机中，转子芯固定在轴上。在转子铁芯中形成通孔，并且永磁体被插入以固定在通孔中的适当位置。定子铁芯固定在转子铁芯的外圆周表面上，使得定子铁芯面向转子铁芯的外圆周表面。定子线圈经由绝缘体设置在定子铁芯上，以构成磁通量产生部分。在由定子铁芯和定子线圈构成的定子的前面设置有冷却风扇。风扇的叶片的轴向位置和转子芯和永久磁铁的轴向位置在其位置上部分重叠。

5. 发明申请

US20140145524A1 ELECTRIC POWER TOOL 审中-公开
标题翻译：电动工具
公开(公告)号：US20140145524A1
公开(公告)日：2014-05-29
申请号：US14090299
申请日：2013-11-26
申请人： Hitachi Koki Co., Ltd.
发明人： Hideyuki Tanimoto , Yoshihiro Nakano , Hiroki Uchida , Yoshihiro Komuro
IPC分类号： H02K7/14 , H02K1/27
CPC分类号： H02K7/145 , B25B21/02 , B25B23/1475 , H02K1/2706
摘要： An electric power tool including: a motor; and a rotary impact mechanism configured to be driven by the motor, wherein the motor is configured such that a rotation speed thereof can be set within a range of 14600 to 19000 min−1 when a motor torque is within a torque range during practical operation.
摘要翻译：一种电动工具，包括：电动机; 以及构造成由所述电动机驱动的旋转冲击机构，其中，所述电动机被构造为使得当电动机转矩在实际操作期间在转矩范围内时，其转速可以设定在14600至19000分钟-1的范围内。

6. 发明申请

US20140084717A1 BRUSHLESS MOTOR AND ELECTRIC-POWERED TOOL 有权
标题翻译：无刷电动机和电动工具
公开(公告)号：US20140084717A1
公开(公告)日：2014-03-27
申请号：US13958838
申请日：2013-08-05
申请人： HITACHI KOKI CO., LTD.
发明人： Hayato Yamaguchi , Hideyuki Tanimoto
IPC分类号： H02K9/06 , H02K7/14
CPC分类号： H02K9/06 , H02K1/276 , H02K7/145
摘要： In a brushless motor, a rotor core is fixed to a shaft. Through holes are formed in the rotor core, and permanent magnets are inserted to be fixed in place in the through holes. A stator core is fixed to an outer circumferential surface of the rotor core such that the stator core faces the outer circumferential surface of the rotor core. Stator coils are provided on the stator core via insulators so as to configure magnetic flux generating portions. A cooling fan is provided in front of a stator which is configured by the stator core and the stator coils. Axial position of blades of the fan and axial positions of the rotor core and the permanent magnets partially overlap each other in their positions.
摘要翻译：在无刷电动机中，转子芯固定在轴上。在转子铁芯中形成通孔，并且永磁体被插入以固定在通孔中的适当位置。定子铁芯固定在转子铁芯的外圆周表面上，使得定子铁芯面向转子铁芯的外圆周表面。定子线圈经由绝缘体设置在定子铁芯上，以构成磁通量产生部分。在由定子铁芯和定子线圈构成的定子的前面设置有冷却风扇。风扇的叶片的轴向位置和转子芯和永久磁铁的轴向位置在其位置上部分重叠。

7. 发明申请

US20180175757A1 Power Tool 审中-公开
公开(公告)号：US20180175757A1
公开(公告)日：2018-06-21
申请号：US15577556
申请日：2016-04-29
申请人： Hitachi Koki Co., Ltd.
发明人： Hideyuki Tanimoto , Eiji Nakayama
IPC分类号： H02P6/28 , B25F5/02 , H02K23/64 , H02P4/00
CPC分类号： H02P6/28 , B23D47/12 , B25F5/00 , B25F5/02 , H02K23/64 , H02P4/00 , H02P6/085 , H02P25/18 , H02P25/188
摘要： To provide a power tool capable of suppressing variations in motor characteristics between external power sources with different voltage while preventing an increase in the size of the power tool. The power tool includes: a motor including a stator on which a plurality of windings are wound and a rotor rotatable relative to the stator; an output unit driven by rotation of the rotor; a power source connection part connectable to an external power source serving as a driving power source of the motor; power source voltage detecting means configured to perform detecting a voltage of the external power source connected to the power source connection part; and connection form changing means configured to perform changing a connection form of the plurality of windings on the basis of the voltage of the external power source.

8. 发明申请

US20150357612A1 Electric Device Body And Electric Device 有权
标题翻译：电器机身和电器
公开(公告)号：US20150357612A1
公开(公告)日：2015-12-10
申请号：US14760603
申请日：2014-01-14
申请人： HITACHI KOKI CO., LTD.
发明人： Hiroki Uchida , Yoshihiro Nakano , Tetsuhiro Harada , Hideyuki Tanimoto
IPC分类号： H01M2/10
CPC分类号： H01M2/1055 , B25F5/00 , H01M2220/30
摘要： An electric device body in which a battery pack including a plurality of battery cells and a plurality of first terminals is detachably mounted includes: a housing; a guide mechanism; and a plurality of second terminals; and a pressed portion. The battery pack is configured to be attached to and detached from the housing along a first direction. The guide mechanism is provided at the housing and configured to define the first direction. The plurality of second terminals is configured to be connected to the plurality of first terminals upon attachment of the battery pack to the housing. The pressed portion is configured to be pressed against the battery pack in a second direction intersecting the first direction when the battery pack has been attached to the housing.
摘要翻译：一种电气装置主体，其中包括多个电池单元的电池组和多个第一端子可拆卸地安装包括：壳体; 指导机制; 和多个第二端子; 和按压部分。电池组被构造成沿着第一方向附接到壳体并从壳体拆下。引导机构设置在壳体处并且被配置为限定第一方向。多个第二端子被配置为在将电池组附接到壳体时连接到多个第一端子。按压部分构造成当电池组已经附接到壳体时沿与第一方向交叉的第二方向压靠在电池组上。

9. 发明授权

US09197153B2 Power tool having display that displays residual capacity of battery 有权
标题翻译：具有显示器的电动工具显示电池的剩余容量
公开(公告)号：US09197153B2
公开(公告)日：2015-11-24
申请号：US13947992
申请日：2013-07-22
申请人： HITACHI KOKI CO., LTD.
发明人： Kenichirou Yoshida , Hideyuki Tanimoto , Hayato Yamaguchi , Shinji Kuragano , Takuya Konnai
IPC分类号： G05B11/28 , H02J7/14 , H02P27/00 , B25F5/00 , H02J7/00
CPC分类号： H02P27/00 , B25F5/00 , H02J7/0047 , H02J7/0063 , H02J2007/005
摘要： A power tool includes a housing, an electric motor accommodated in the housing, a secondary battery that supplies electric power to the electric motor, a handle provided at the housing, a trigger switch provided at the handle for controlling electric power supply to the electric motor, a residual capacity display for displaying a residual capacity of the secondary battery, and a lock-release switch provided at the handle and configured to allow the trigger switch to be operable and to start displaying the residual capacity at the residual capacity display upon manipulation to the lock-release switch.
摘要翻译：电动工具包括壳体，容纳在壳体中的电动机，向电动机供电的二次电池，设置在壳体上的把手，设置在手柄处的用于控制向电动机供电的触发开关，用于显示二次电池的剩余容量的剩余容量显示器和设置在手柄处的锁定释放开关，并且被配置为允许触发开关可操作并且在操纵时开始显示剩余容量显示的剩余容量锁定释放开关。

10. 发明授权

US10547182B2 Electric operating machine 有权
公开(公告)号：US10547182B2
公开(公告)日：2020-01-28
申请号：US15429787
申请日：2017-02-10
申请人： HITACHI KOKI CO., LTD.
发明人： Nobuhiro Takano , Kazuhiko Funabashi , Hideyuki Tanimoto , Chikai Yoshimizu , Hiromi Ozawa , Yoshihiro Hoshi
IPC分类号： H02J7/00 , A01D69/02 , H01M10/0525 , H01M10/42 , H01M10/48 , H02K7/14 , H02P29/024
摘要： When a main switch (12) is turned ON, an electric operating machine (1) is put in the standby mode. With a trigger (13) being pulled in the standby mode, a power supply circuit (16) applies a voltage to a drive part (30). The power supply circuit (16) adjusts the voltage applied to the drive part (30) for a voltage corresponding to the pulling rate of the trigger (13). When the current running toward the drive part (30) exceeds the rated value of the drive part (30), the power supply circuit (16) automatically stops power supply to the drive part (30). On the other hand, when the output voltage of a battery (50) drops and the battery (50) is put in an overdischarge state, power supply to the drive part (30) is automatically stopped. When it is detected that the battery (50) undergoes an abnormal event, power supply to the drive part (30) is automatically stopped.

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