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1. 发明公开

EP3716450A1 MOTOR FOR ELECTRIC POWER TOOLS AND ELECTRIC POWER TOOL 审中-公开
公开(公告)号：EP3716450A1
公开(公告)日：2020-09-30
申请号：EP20164016.6
申请日：2020-03-18
申请人： Panasonic Intellectual Property Management Co., Ltd.
发明人： MURUI, Itaru , MURAMATSU, Masari , MUTO, Motoharu , KITAMURA, Kota
IPC分类号： H02K7/14 , H02K11/21 , H02K11/33 , H02K29/06 , H02K5/15 , H02K5/22
摘要： The present disclosure provides a motor for electric power tools having the ability to provide high-torque output and extend its continuous running time. A motor (1) for electric power tools according to an embodiment includes: a rotor (2) having a rotational shaft (21); a stator (3) having a coil (31) to rotate the rotor (2); a first substrate (41) mounting a sensor element to detect a rotational position of the rotor (2); and a second substrate (42) mounting a switching element to change, based on a result of detection by the sensor element, a conducting direction in which a current flows with respect to the coil (31). The first substrate (41) and the second substrate (42) are arranged side by side along, and intersect at right angles with, the rotational shaft (21).

2. 发明公开

EP3240158A1 MOTOR AND ELECTRIC TOOL EQUIPPED WITH SAME 有权
标题翻译：电动机和电动工具配备相同
公开(公告)号：EP3240158A1
公开(公告)日：2017-11-01
申请号：EP15872180.3
申请日：2015-12-09
申请人： Panasonic Intellectual Property Management Co., Ltd.
发明人： KITAMURA, Kota , SHIMIZU, Hidenori , TAKEYAMA, Atsushi , MUTO, Motoharu , KINOSHITA, Daiju
IPC分类号： H02K11/30 , H02K11/21
摘要： A motor (1) includes: a stator (11); a rotor (12) axially aligned with the stator (11); a circuit board (14) disposed at one end, in an axial direction, of the stator (11), and having a sensor for detecting a rotational angle of the rotor (12) and a switching element for controlling the flow of current; and a heat dissipating plate (13) disposed at the one end, in the axial direction, of the stator (11). The stator (11) includes: an iron core (111) including teeth (124); an insulator (112) covering one end surface, in the axial direction, of the iron core (111); and a coil (114) wound around the teeth (124). The insulator (112) includes an electrically insulating material having a lower rate of heat transfer than a material included in the iron core (111). The heat dissipating plate (13) is attached to the insulator (112) in a state in which the heat dissipating plate (13) is in contact with the insulator (112) without being in contact with the iron core (111), and the circuit board (14) is attached to the heat dissipating plate (13) in a state in which the circuit board (14) is in contact with the heat dissipating plate (13) without being in contact with the iron core (111).
摘要翻译：电动机（1）具备：定子（11）与所述定子（11）轴向对齐的转子（12）; 设置在所述定子的轴向一端的电路基板，所述电路基板具有检测所述转子的旋转角度的传感器和控制电流的开关元件; 和设置在定子（11）的轴向一端的散热板（13）。定子（11）包括：包括齿（124）的铁芯（111）覆盖铁芯（111）的轴向的一个端面的绝缘体（112）; 和缠绕在齿（124）上的线圈（114）。绝缘体（112）包括具有比包括在铁芯（111）中的材料更低的传热率的电绝缘材料。在散热板（13）与绝缘体（112）接触的状态下，散热板（13）以不与铁芯（111）接触的状态安装于绝缘体（112）在电路基板（14）与散热板（13）接触而不与铁芯（111）接触的状态下，电路基板（14）安装于散热板（13）。

3. 发明公开

EP4043151A1 ELECTRIC TOOL 审中-公开
公开(公告)号：EP4043151A1
公开(公告)日：2022-08-17
申请号：EP20874093.6
申请日：2020-09-18
申请人： Panasonic Intellectual Property Management Co., Ltd.
发明人： KITAMURA, Kota , MURUI, Itaru , TSUJIMOTO, Naoki , MOMOEDA, Kotaro , NAKAMURA, Akito
IPC分类号： B25B23/14 , B25F5/00
摘要： An object of the present disclosure is to suppress reliability relating to rotation control from being degraded. An electric tool includes a pressure-sensitive sensor (80), a support (112), an output shaft (3), and a controller. The pressure-sensitive sensor (80) is configured to sense pressing force which is externally provided. The support (112) supports the pressure-sensitive sensor (80). The output shaft (3) is configured to hold a tip tool and be rotated relative to the support (112) by motive power provided from an electric motor with the output shaft (3) holding the tip tool. The controller (4) is configured to control rotation of the output shaft (3) in accordance with an output according to the pressing force, the output being output from the pressure-sensitive sensor (80).

4. 发明公开

EP3603894A1 POWER TOOL 有权
公开(公告)号：EP3603894A1
公开(公告)日：2020-02-05
申请号：EP17903771.8
申请日：2017-11-30
申请人： Panasonic Intellectual Property Management Co., Ltd.
发明人： KITAMURA, Kota , YAMANE, Tsuyoshi , TAKEYAMA, Atsushi
IPC分类号： B25F5/00 , H02K9/06
摘要： A first retaining part (20) is provided on an inner circumferential surface of the housing (2) to retain an outer circumference of the motor (4) at or near one end of the motor (4). A second retaining part (21) retains an outer circumference of a first bearing (13a) that supports a first motor shaft (12a) extending from the one end of the motor (4). A third retaining part (22) is provided on the inner circumferential surface of the housing (2) to retain an outer circumference of the motor (4) at or near the other end of the motor (4). A fourth retaining part (23) retains an outer circumference of a second bearing that supports a second motor shaft (12b) extending from the other end of the motor (4). A first chamber (30) houses a cooling fan (3) and includes a first vent (14). A second chamber (31) includes a second vent (15).

5. 发明公开

EP4064554A1 ELECTRIC TOOL SYSTEM, METHOD FOR USING ELECTRIC TOOL SYSTEM, AND PROGRAM 审中-公开
公开(公告)号：EP4064554A1
公开(公告)日：2022-09-28
申请号：EP20890148.8
申请日：2020-09-18
申请人： Panasonic Intellectual Property Management Co., Ltd.
发明人： MURUI, Itaru , FUJII, Shota , OKAMOTO, Keita , TSUJIMOTO, Naoki , KITAMURA, Kota , MOMOEDA, Kotaro
IPC分类号： H02P21/22 , B25F5/00
摘要： The problem to be overcome by the present disclosure is to improve the accuracy of control of a motor. An electric tool system (1) includes a motor (15), a control unit (4), and an output shaft. The motor (15) includes a stator (14) and a rotor (13). The control unit (4) performs vector control on the motor (15). The control unit (4) includes a first acquisition unit (60), a second acquisition unit (47), and a command value generation unit (40). The command value generation unit (40) calculates, based on a torque current acquisition value (current measured value (iq1)) as a value related to a torque current as acquired by the first acquisition unit (60) and an acceleration acquisition value (α1) as a value related to acceleration of the rotor (13) as acquired by the second acquisition unit (47), at least one of a command value (ciql) of the torque current to be supplied to the motor (15) or a command value (cidl) of an excitation current to be supplied to the motor (15).

6. 发明公开

EP3214731A1 BRUSHLESS MOTOR AND ELECTRICALLY POWERED TOOL 有权
标题翻译：无刷电机和电动工具
公开(公告)号：EP3214731A1
公开(公告)日：2017-09-06
申请号：EP15855310.7
申请日：2015-10-09
申请人： Panasonic Intellectual Property Management Co., Ltd.
发明人： KITAMURA, Kota , SHIMIZU, Hidenori , TAKEYAMA, Atsushi , MUTO, Motoharu , TSUBAKIMOTO, Hiroyuki , HASHIMOTO, Koichi
IPC分类号： H02K1/18 , H02K5/04 , H02K1/14 , H02K7/14
CPC分类号： H02K1/146 , H02K1/185 , H02K5/04 , H02K7/145 , H02K2213/03
摘要： A brushless motor (10) includes: a stator core (11) having a cylindrical yoke portion (111) and a teeth portion (112) having a shape protruding from an inner circumferential surface of the yoke portion (111); and a rotor (12) that is disposed inside the stator core (11), spaced apart from the teeth portion (112), and uses a center axis of the yoke portion (111) as an axis of rotation (AR). The yoke portion (111) includes, on its outer circumferential surface, a notch portion (111a) at a position on the back side of the teeth portion (112). The notch portion (111a) has a circumferential width (W111a) smaller than a circumferential width (W112) of the teeth portion (112).
摘要翻译：本发明提供一种无刷马达，其特征在于，具备：定子铁心，其具有圆筒状的磁轭部和从该磁轭部的内周面突出形成的齿部。以及设置在定子铁心11内并与齿部112分离的转子12，并且以轭部111的中心轴线作为旋转轴线AR。轭部（111）在其外圆周表面上包括在齿部（112）的后侧上的位置处的凹口部（111a）。切口部（111a）具有比齿部（112）的周向宽度（W112）小的周向宽度（W111a）。

7. 发明公开

EP4131734A1 BRUSHLESS MOTOR AND ELECTRICALLY-POWERED TOOL 审中-实审
公开(公告)号：EP4131734A1
公开(公告)日：2023-02-08
申请号：EP21776308.5
申请日：2021-02-05
申请人： Panasonic Intellectual Property Management Co., Ltd.
发明人： NAKAMURA, Akito , KITAMURA, Kota
IPC分类号： H02K3/52 , H02K3/50
摘要： Provided are a brushless motor and an electrically-powered tool having an improved cooling efficiency of a coil. A brushless motor (1) is an inner rotor type brushless motor. The brushless motor (1) includes a plurality of phase coils (U1 to U3, V1 to V3, W1 to W3) of multiple phases arranged around a rotation axis (C1), and a plurality of terminals (8) configured to connect the plurality of phase coils (U1 to U3, V1 to V3, W1 to W3) of multiple phases to a switching circuit (600). The plurality of terminals (8) are located inside a circumscribed circle (C2) of the plurality of phase coils (U1 to U3, V1 to V3, W1 to W3) of multiple phases.

8. 发明公开

EP4043150A1 ELECTRIC TOOL 审中-公开
公开(公告)号：EP4043150A1
公开(公告)日：2022-08-17
申请号：EP20875262.6
申请日：2020-09-18
申请人： Panasonic Intellectual Property Management Co., Ltd.
发明人： MURUI, Itaru , MOMOEDA, Kotaro , KITAMURA, Kota , TSUJIMOTO, Naoki , NAKAMURA, Akito
IPC分类号： B25B21/00 , B25F5/00
摘要： An object of the present disclosure is to improve convenience. An electric tool (1) includes an output shaft and a controller (4). The output shaft is configured to hold a tip tool (2) and be rotated by motive power provided from an electric motor (5) with the output shaft holding the tip tool (2). The controller (4) is configured to control rotation of the output shaft in accordance with pressing force in a direction from a tip end of the tip tool (2) toward the output shaft. The electric tool (1) has, as an operation range, a restriction range in which rotation of the output shaft is restricted in a state where the pressing force is less than or equal to a prescribed value.

9. 发明公开

EP3716449A1 MOTOR FOR ELECTRIC POWER TOOLS AND ELECTRIC POWER TOOL 审中-公开
公开(公告)号：EP3716449A1
公开(公告)日：2020-09-30
申请号：EP20164015.8
申请日：2020-03-18
申请人： Panasonic Intellectual Property Management Co., Ltd.
发明人： MURUI, Itaru , MOMOEDA, Kotaro , NAKAMURA, Akito , TSUJIMOTO, Naoki , KITAMURA, Kota
IPC分类号： H02K7/14 , H02K11/21 , H02K11/33 , H02K29/06 , H02K5/15 , H02K5/22
摘要： The present disclosure provides a motor for electric power tools with the ability to reduce noise and vibrations and increase its efficiency. A motor (1) for electric power tools includes: a rotor (2) having a rotational shaft (21); a stator (3) having a coil (31) to rotate the rotor (2); a substrate (41) including a sensor element to detect a rotational position of the rotor (2); a bearing (7) to support the rotational shaft (21) rotatably; and an insulator (5) to fix the stator (3), the substrate (41), and the bearing (7) thereon.

10. 发明授权

EP3240158B1 MOTOR AND ELECTRIC TOOL EQUIPPED WITH THE SAME 有权
公开(公告)号：EP3240158B1
公开(公告)日：2019-11-13
申请号：EP15872180.3
申请日：2015-12-09
申请人： Panasonic Intellectual Property Management Co., Ltd.
发明人： KITAMURA, Kota , SHIMIZU, Hidenori , TAKEYAMA, Atsushi , MUTO, Motoharu , KINOSHITA, Daiju
IPC分类号： H02K11/33 , H02K9/22 , H02K11/21 , H02K7/14 , H02K3/52

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