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129 条记录 (耗时 0.021 秒)

    Driving Device And Power Tool Comprising Same
    2.
    发明申请
    Driving Device And Power Tool Comprising Same 审中-公开

    公开(公告)号：US20170326712A1

    公开(公告)日：2017-11-16

    申请号：US15495198

    申请日：2017-04-24

    申请人： Johnson Electric S.A.

    发明人： Yue LI ,  Jing Ning TA ,  Bin YU ,  Qiu Mei LI

    IPC分类号： B25B21/02 ,  H02K1/14 ,  B25F5/00 ,  F16H1/28 ,  H02K9/06 ,  H02K1/27

    CPC分类号： B25B21/026 ,  B25F5/001 ,  B25F5/008 ,  F16H1/28 ,  H02K1/146 ,  H02K1/2706 ,  H02K7/116 ,  H02K9/06

    摘要： A driving device includes a motor and a gearbox. The gearbox includes a sun gear, planetary gears surrounding and meshing with the sun gear, and an internal ring gear surrounding and meshing with the planetary gears. The motor is a single phase motor. The sun gear is integrally formed with a rotary shaft of the motor. A power tool is also disclosed which includes the driving device, a rotatable working head driven by the driving device, and a striking unit disposed between the driving device and the working head. By integrating the sun gear and the motor rotary shaft to form an integral gear shaft, the number of the teeth of the sun gear can be reduced to five or less. Therefore, the transmission ratio of the gearbox can be effectively increased without changing the maximum geometric outer diameter.

    Fluid Driving Device, Motor Assembly and Friction Clutch Thereof
    4.
    发明申请
    Fluid Driving Device, Motor Assembly and Friction Clutch Thereof 审中-公开

    公开(公告)号：US20170152896A1

    公开(公告)日：2017-06-01

    申请号：US15361798

    申请日：2016-11-28

    申请人： Johnson Electric S.A.

    发明人： Yue LI ,  Li Sheng LIU ,  Yong WANG ,  Ya Ming ZHANG

    IPC分类号： F16D13/40

    CPC分类号： F16D13/40 ,  F16D13/04 ,  F16D43/02 ,  F16D2023/123

    摘要： A fluid driving device, a motor assembly and a friction clutch thereof are disclosed. The friction clutch includes: a fixing member fixed on a rotary shaft; a connecting member slidable disposed on the rotary shaft, wherein when the rotary shaft starts rotating, an axial distance between the connecting member and the fixing member changes such that a friction force between the fixing member and the connecting member increases until the connecting member rotates synchronously with the fixing member; a loading member slidable disposed on the rotary shaft, the loading member and the connecting member being circumferentially positioned; and a restoring member configured to reduce an amount of change of the axial distance between the fixing member and the connecting member when the rotary shaft stops rotating.

    Brushless Motor
    7.
    发明申请
    Brushless Motor 审中-公开

    公开(公告)号：US20170093264A1

    公开(公告)日：2017-03-30

    申请号：US15283057

    申请日：2016-09-30

    申请人： Johnson Electric S.A.

    发明人： Yue LI ,  Chui You ZHOU ,  Yong WANG ,  Yong LI

    IPC分类号： H02K21/16 ,  H02K3/28 ,  H02K3/18 ,  H02K1/14 ,  H02K1/27

    CPC分类号： H02K21/16 ,  H02K1/146 ,  H02K1/148 ,  H02K1/2706 ,  H02K1/278 ,  H02K3/18 ,  H02K3/28

    摘要： A brushless motor includes a stator and a rotor. The stator includes a stator core and two windings. The stator core includes a yoke, two opposing first teeth, and two second teeth. The windings are respectively wound around the two first teeth. The second teeth are not wound with any winding. The first and second teeth are alternatively arranged. The rotor is received in a space cooperatively bounded by the pole shoes of the main and second teeth. Air gaps are formed between an outer circumferential surface of the rotor and respective pole faces of the first teeth and the second teeth, each of the air gaps has an even thickness, and is symmetrical with regarded to a central line of the corresponding one of the first teeth and the second teeth.

    Brushless Motor
    8.
    发明申请
    Brushless Motor 审中-公开

    公开(公告)号：US20170093261A1

    公开(公告)日：2017-03-30

    申请号：US15282044

    申请日：2016-09-30

    申请人： Johnson Electric S.A.

    发明人： Yue LI ,  Chui You ZHOU ,  Yong WANG ,  Yong LI

    IPC分类号： H02K21/16 ,  H02K1/28 ,  H02K1/27 ,  H02K1/14 ,  H02K3/18

    CPC分类号： H02K21/16 ,  H02K1/146 ,  H02K1/2706 ,  H02K1/28 ,  H02K3/18

    摘要： A brushless motor includes a stator and a rotor. The stator includes a stator core and two windings. The stator core includes a yoke, two opposing first teeth, and two second teeth. The windings are respectively wound around the two first teeth. The second teeth are not wound with any winding. The first and second teeth are alternatively arranged. The rotor is received in a space cooperatively bounded by the pole shoes of the main and second teeth. Air gaps are formed between an outer circumferential surface of the rotor and respective pole faces of the first teeth and the second teeth. Each of the air gaps is even in radial thickness.

    Single Phase Permanent Magnet Motor
    9.
    发明申请
    Single Phase Permanent Magnet Motor 审中-公开
    单相永磁电动机

    公开(公告)号：US20170077791A1

    公开(公告)日：2017-03-16

    申请号：US15260689

    申请日：2016-09-09

    申请人： Johnson Electric S.A.

    发明人： Yue LI ,  Chui You ZHOU ,  Yong WANG ,  Yong LI

    IPC分类号： H02K19/04 ,  H02K1/27 ,  H02K3/32 ,  H02K1/14

    CPC分类号： H02K19/04 ,  H02K1/146 ,  H02K1/148 ,  H02K1/2706 ,  H02K3/325

    摘要： A single phase permanent magnet motor includes a stator and a rotor rotatable relative to the stator. The stator includes a stator core and a winding wound around the stator core. The rotor includes a rotor core and a plurality of permanent magnetic poles. The stator core includes at least one first stator core lamination and at least one second stator core lamination stacked with the first stator core lamination. Inner structures of the first stator core lamination and the second stator core lamination are different. This structure reduces motor's vibration and noise, avoids possible startup dead point and improves the motor startup reliability.

    摘要翻译： 单相永磁电动机包括定子和可相对于定子旋转的转子。 定子包括定子芯和围绕定子芯缠绕的绕组。 转子包括转子芯和多个永久磁极。 定子芯包括至少一个第一定子芯层叠体和与该第一定子铁心层压体堆叠的至少一个第二定子铁心层压体。 第一定子铁芯层叠体和第二定子铁心层叠体的内部结构不同。 这种结构可以减少电机的振动和噪音，避免可能的启动死点，提高电机启动的可靠性。

    PERMANENT MAGNET MOTOR AND POWER TOOL USING SAME
    10.
    发明申请
    PERMANENT MAGNET MOTOR AND POWER TOOL USING SAME 审中-公开
    永磁电机和电动工具使用相同

    公开(公告)号：US20170077773A1

    公开(公告)日：2017-03-16

    申请号：US15260772

    申请日：2016-09-09

    申请人： Johnson Electric S.A.

    发明人： Yue LI ,  Chui You ZHOU ,  Kwong Yip POON ,  Ronny KEIL ,  Yong WANG ,  Xiao Ning ZHU

    IPC分类号： H02K1/27 ,  B23D57/02 ,  H02K21/22 ,  H02K1/14 ,  H02K3/18

    CPC分类号： H02K1/2786 ,  B27B17/08 ,  H02K1/146 ,  H02K3/18 ,  H02K21/22 ,  H02K21/222 ,  H02K29/03 ,  H02K2213/03

    摘要： A permanent magnet motor and a power tool are provided. The permanent magnet motor includes an excition and an armature. One of the excition and armature comprises a first magnetic core with permanent magnet members embedded therein. The permanent magnet members are arranged along a circumferential direction of the first magnetic core, such that an inner circumferential surface of the first magnetic core forms a plurality of magnetic poles with alternative polarities. The other of the excition and armature comprises a second magnetic core and windings. The second magnetic core is received in the first magnetic core and comprises teeth with the windings wound therearound. The embedded construction prevents the permanent magnet members from becoming disengaged from the magnetic core. A stronger magnetic pole can be formed by mutual induction of the permanent magnet members and the magnetic core, which increases the power density of the motor.

    摘要翻译： 提供永磁电动机和动力工具。 永磁电动机包括排料和电枢。 排除和电枢中的一个包括嵌入其中的永磁体构件的第一磁芯。 永久磁铁构件沿着第一磁芯的圆周方向布置，使得第一磁芯的内周面形成具有可选极性的多个磁极。 另一个排除和电枢包括第二个磁芯和绕组。 第二磁芯被接收在第一磁芯中，并且包括缠绕绕组的齿。 嵌入式结构防止永磁体从磁芯脱离。 可以通过永磁体和磁芯的相互感应形成更强的磁极，这增加了电动机的功率密度。