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    Brushless Motor
    2.
    发明申请
    Brushless Motor 审中-公开

    公开(公告)号：US20170093262A1

    公开(公告)日：2017-03-30

    申请号：US15282121

    申请日：2016-09-30

    Applicant: Johnson Electric S.A.

    Inventor： Yue LI ,  Chui You ZHOU ,  Yong WANG ,  Yong LI

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

    CPC classification number: H02K21/16 ,  H02K1/146 ,  H02K1/148 ,  H02K1/2706 ,  H02K1/278 ,  H02K3/18 ,  H02K3/28 ,  H02K3/325 ,  H02K5/15

    Abstract: 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. Each of the main pole shoes is connected to the adjacent one of the auxiliary pole shoes through a magnetic bridge having a larger magnetic reluctance than that of the main pole shoes and the auxiliary pole shoes, which reduces the magnetic leakage and increases the motor power density.

    Single Phase Permanent Magnet Motor
    6.
    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：US20170077769A1

    公开(公告)日：2017-03-16

    申请号：US15260734

    申请日：2016-09-09

    Applicant: Johnson Electric S.A.

    Inventor： Yue LI ,  Chui You ZHOU ,  Yong WANG ,  Yong LI

    IPC: H02K1/16 ,  H02K1/27

    CPC classification number: H02K1/16 ,  H02K1/146 ,  H02K1/27 ,  H02K1/278 ,  H02K21/16

    Abstract: A single phase permanent magnet motor includes a stator and a rotor relative to the stator. The stator includes a stator core with a winding wound therearound. The stator core includes stacked first and second stator core laminations. The first stator core lamination includes a plurality of first pole shoes. The second stator core lamination includes a plurality of second pole shoes. The structures of the first pole shoes and the second pole shoes are different. The first pole shoes and the second pole shoes are stacked substantially along the axial direction of the motor. The present invention reduces vibration and noise caused by the use of a single type of core laminations in the prior art.

    Abstract translation: 单相永磁电动机包括相对于定子的定子和转子。 定子包括定子铁心，绕组缠绕绕组。 定子铁心包括堆叠的第一和第二定子铁心叠片。 第一定子铁芯层叠件包括多个第一极靴。 第二定子铁心层压板包括多个第二极靴。 第一极靴和第二极靴的结构是不同的。 第一极靴和第二极靴基本沿着电动机的轴向堆叠。 本发明减少了在现有技术中使用单一类型的芯片叠片引起的振动和噪音。

    SINGLE PHASE PERMANENT MAGNET MOTOR
    7.
    发明申请
    SINGLE PHASE PERMANENT MAGNET MOTOR 审中-公开
    单相永磁电机

    公开(公告)号：US20170063186A1

    公开(公告)日：2017-03-02

    申请号：US15254544

    申请日：2016-09-01

    Applicant: Johnson Electric S.A.

    Inventor： Yue LI ,  Chui You ZHOU ,  Yong WANG ,  Yong LI

    IPC: H02K1/27 ,  H02K1/28 ,  H02K1/14

    CPC classification number: H02K21/185 ,  H02K1/143 ,  H02K1/2733 ,  H02K1/278

    Abstract: The present invention provides a single phase permanent magnet motor including a stator core and a permanent magnet rotor. The stator core includes an end portion and two arm portions extending from the end portion. Each arm portion includes a connecting arm connected to the end portion and a pole claw formed at a distal end of the connecting arm. The two pole claws defines a receiving space. The rotor is rotatably disposed in the receiving space of the stator core. The rotor includes a rotor core made of a magnetic material and at least one permanent magnet attached to the rotor core.

    Abstract translation: 本发明提供一种包括定子芯和永磁转子的单相永磁电动机。 定子铁芯包括端部和从端部延伸的两个臂部。 每个臂部包括连接到端部的连接臂和形成在连接臂的远端处的极爪。 两个极爪定义了一个接收空间。 转子可旋转地设置在定子芯的容纳空间中。 转子包括由磁性材料制成的转子铁心和附接到转子铁心的至少一个永磁体。

    Single Phase Brushless Motor and Power Tool Utilizing Same
    8.
    发明申请
    Single Phase Brushless Motor and Power Tool Utilizing Same 审中-公开
    单相无刷电机及其使用的电动工具

    公开(公告)号：US20170063179A1

    公开(公告)日：2017-03-02

    申请号：US15254379

    申请日：2016-09-01

    Applicant: Johnson Electric S.A.

    Inventor： Yue LI ,  Tao ZHANG ,  Chui You ZHOU ,  Jie CHAI ,  Jun Jie CHU ,  Xiao Bing ZUO ,  Yong WANG ,  Yong LI

    IPC: H02K1/14 ,  H02K7/14 ,  H02K1/27

    CPC classification number: H02K1/146 ,  H02K1/2726 ,  H02K1/276 ,  H02K1/278 ,  H02K7/145 ,  H02K21/16 ,  H02K29/03 ,  H02K2213/03

    Abstract: A single phase brushless motor and a power tool are provided. The single phase brushless motor includes a stator and a rotor. The stator includes a stator core and windings wound around the stator core. The stator core includes a yoke and at least two teeth. The tooth includes a tooth body and a tooth tip. The tooth tip includes first and second pole shoes. The two pole shoes of each tooth are symmetrical about a center line of the tooth body. Each tooth defines a positioning groove facing the rotor between the two pole shoes. Pole shoes of adjacent two of the at least two teeth are spaced apart by a slot opening. A width of the positioning groove is greater than a width of the slot opening. The peak value of the cogging torque of the motor is increased, and the motor has a large startup torque.

    Abstract translation: 提供单相无刷电机和电动工具。 单相无刷电动机包括定子和转子。 定子包括定子芯和围绕定子芯缠绕的绕组。 定子芯包括轭和至少两个齿。 牙齿包括牙体和牙齿尖端。 齿尖包括第一和第二极靴。 每个齿的两个极靴与牙体的中心线对称。 每个齿在两个极靴之间限定面向转子的定位槽。 所述至少两个齿中相邻的两个齿的极靴通过槽口间隔开。 定位槽的宽度大于槽口的宽度。 马达的齿槽转矩的峰值增加，马达起动转矩大。

    Single-phase Outer-Rotor Motor And Rotor Thereof
    9.
    发明申请
    Single-phase Outer-Rotor Motor And Rotor Thereof 审中-公开
    单相外转子电机及转子

    公开(公告)号：US20160329762A1

    公开(公告)日：2016-11-10

    申请号：US15148752

    申请日：2016-05-06

    Applicant: Johnson Electric S.A.

    Inventor： Yue LI ,  Chui You ZHOU ,  Yong WANG ,  Gang LI ,  Yong LI ,  Wei ZHANG ,  Jie CHAI

    IPC: H02K1/27 ,  H02K3/18 ,  H02K21/14 ,  H02K1/14

    CPC classification number: H02K1/2786 ,  H02K1/14 ,  H02K1/146 ,  H02K3/18 ,  H02K21/14 ,  H02K21/22 ,  H02K29/03

    Abstract: A single-phase outer-rotor motor includes a stator and a rotor surrounding the stator. The stator includes a stator core and windings wound around the stator core. The stator core includes a yoke and a plurality of teeth. Each tooth forms a tooth tip at a distal end thereof. A slot opening is formed between each two adjacent tooth tips. The rotor includes a housing and a plurality of permanent magnets affixed to the housing. The permanent magnet is an asymmetrical structure. A radial distance between an inner surface of the permanent magnet and an outer surface of the tooth tip varies along the circumferential direction. The stator and the rotor define an asymmetrical uneven gap there between, and a width of the slot opening in the circumferential direction is less than or equal to five times of a minimum width of the gap.

    Abstract translation: 单相外转子电动机包括定子和围绕定子的转子。 定子包括定子芯和围绕定子芯缠绕的绕组。 定子铁芯包括轭和多个齿。 每个齿在其远端处形成齿尖。 在每个相邻的两个齿尖之间形成槽口。 转子包括固定在壳体上的壳体和多个永磁体。 永磁体是非对称结构。 永久磁体的内表面与齿尖的外表面之间的径向距离沿圆周方向变化。 定子和转子在其之间限定不对称的不平坦间隙，并且在圆周方向上的槽开口的宽度小于或等于间隙的最小宽度的五倍。

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