Permanent magnet excited electric motor with reduced cogging torque
    1.
    发明授权
    Permanent magnet excited electric motor with reduced cogging torque 有权
    具有减小齿槽转矩的永磁式励磁电动机

    公开(公告)号:US08664826B2

    公开(公告)日:2014-03-04

    申请号:US13084593

    申请日:2011-04-12

    申请人: Jens Krotsch

    发明人: Jens Krotsch

    IPC分类号: H02K1/14 H02K1/16 H02K21/22

    摘要: An electric motor (1) has a stator (2) and a radially symmetric, permanent magnet excited rotor (4) coaxial with the stator (2). The rotor (4) rotates relative to the stator (2) about a common motor axis (X). The stator (2) has a radially symmetric iron core (6) with a defined number (N) of stator teeth (10) which are each adjacent to one another via stator slots (8) and slot openings (8a) in the circumferential direction. The rotor (4) has pole magnets (14) adjacent to one another. A circumferential gap (18) is formed radially between the pole magnets (14) and the stator teeth (10). Each stator tooth (10) has on its surface (20) facing the gap (18) and adjacent to the slot openings (8a) on both sides in the circumferential direction a relief-like topographic region (22) radially enlarging the gap (18) with least one concave recess (24) and a smooth profile.

    摘要翻译: 电动机(1)具有与定子(2)同轴的定子(2)和径向对称的永磁体励磁转子(4)。 转子(4)围绕公共电动机轴线(X)相对于定子(2)旋转。 定子(2)具有径向对称的铁芯(6),其具有限定数量(N)个定子齿(10),其经由定子槽(8)和槽开口(8a)在周向方向上彼此相邻 。 转子(4)具有彼此相邻的极磁体(14)。 在极磁体(14)和定子齿(10)之间形成圆周间隙(18)。 每个定子齿(10)在其表面(20)上面向间隙(18)并且在圆周方向上的两侧上与槽开口(8a)相邻,具有径向扩大间隙(18)的浮雕状地形区域(22) )具有至少一个凹形凹部(24)和平滑轮廓。

    ELECTRIC MOTOR
    2.
    发明申请
    ELECTRIC MOTOR 有权
    电动马达

    公开(公告)号:US20110248595A1

    公开(公告)日:2011-10-13

    申请号:US13084593

    申请日:2011-04-12

    申请人: Jens Krotsch

    发明人: Jens Krotsch

    IPC分类号: H02K21/12

    摘要: An electric motor (1) has a stator (2) and a radially symmetric, permanent magnet excited rotor (4) coaxial with the stator (2). The rotor (4) rotates relative to the stator (2) about a common motor axis (X). The stator (2) has a radially symmetric iron core (6) with a defined number (N) of stator teeth (10) which are each adjacent to one another via stator slots (8) and slot openings (8a) in the circumferential direction. The rotor (4) has pole magnets (14) adjacent to one another. A circumferential gap (18) is formed radially between the pole magnets (14) and the stator teeth (10). Each stator tooth (10) has on its surface (20) facing the gap (18) and adjacent to the slot openings (8a) on both sides in the circumferential direction a relief-like topographic region (22) radially enlarging the gap (18) with least one concave recess (24) and a smooth profile.

    摘要翻译: 电动机(1)具有与定子(2)同轴的定子(2)和径向对称的永磁体励磁转子(4)。 转子(4)围绕公共电动机轴线(X)相对于定子(2)旋转。 定子(2)具有径向对称的铁芯(6),其具有限定数量(N)个定子齿(10),其经由定子槽(8)和槽开口(8a)在周向方向上彼此相邻 。 转子(4)具有彼此相邻的极磁体(14)。 在极磁体(14)和定子齿(10)之间形成圆周间隙(18)。 每个定子齿(10)在其表面(20)上面向间隙(18)并且在圆周方向上的两侧上与槽开口(8a)相邻,具有径向扩大间隙(18)的浮雕状地形区域(22) )具有至少一个凹形凹部(24)和平滑轮廓。

    System for the electronic commutation of a brushless DC motor
    3.
    发明授权
    System for the electronic commutation of a brushless DC motor 有权
    无刷直流电机电子换向系统

    公开(公告)号:US06570353B2

    公开(公告)日:2003-05-27

    申请号:US09853383

    申请日:2001-05-11

    IPC分类号: H02P610

    CPC分类号: H02P6/14

    摘要: The invention relates to a system for the electronic commutation of a brushless DC motor (1) having three phase windings (u, v, w) which are electrically displaced by 120°, comprising a semiconductor bridge (4) consisting of six power semiconductors (S1 to S6), which drives the phase windings (u, v, w) for generating a rotating magnetic stator field, a control unit (6) which correspondingly drives the power semiconductors (S1 to S6), and a device for detecting the respective rotational position of a rotor exhibiting a permanent-magnetic magnet wheel, the device for detecting the rotor position being constructed as sensor-less evaluating unit (8), for evaluating the voltage induced by the rotating magnet wheel which can be measured at the winding terminal (U, V, W) of the motor which is not currently driven. It is the object of the present invention to achieve a reduction of running and commutation noises whilst maintaining the inexpensive and fault-insensitive sensorless rotor position detection. For this purpose, the control unit (6) drives the power semiconductors (S1 to S6) in twelve switching states, which are different with respect to the magnetic field direction effected in each case, by means of a 12-step commutation over one electrical revolution of the DC motor in dependence on the rotor positions.

    摘要翻译: 本发明涉及一种具有电位移120°的三相绕组(u,v,w)的无刷直流电动机(1)的电子换向系统,该系统包括由六个功率半导体组成的半导体电桥(4) 驱动用于产生旋转磁定子磁场的相绕组(u,v,w)的S1〜S6),相应地驱动功率半导体(S1〜S6)的控制单元(6) 显示永磁磁轮的转子的旋转位置,用于检测转子位置的装置被构造为无传​​感器评估单元(8),用于评估由绕组端子可测量的旋转磁轮感应的电压 (U,V,W)。本发明的目的是实现运行和换向噪声的减少,同时保持廉价且不敏感的无传感器转子位置 检测。为此,控制单元(6)以十二个切换状态驱动功率半导体(S1至S6),它们在每种情况下相对于在每种情况下实现的磁场方向不同,借助于12步换向 根据转子位置,直流电机的一次电转。

    Rotating Electrical Machine
    4.
    发明申请
    Rotating Electrical Machine 有权
    旋转电机

    公开(公告)号:US20140306559A1

    公开(公告)日:2014-10-16

    申请号:US14344678

    申请日:2012-09-12

    IPC分类号: H02K9/16 H02K9/22

    摘要: A rotating electric machine (1) having a stator (4) in a housing (2) and a rotor (10) supported by a shaft (6). The housing (2) circumferential wall (12) and first and second axially opposing end walls (14, 16) support bearing flanges with bearings (18) for the shaft (6). Two cooling fan impellers (20, 22) are connected to the shaft (6). An inner cooling fan impeller (20) positioned inside the housing (2) generates an inner cooling air circuit (A) inside the housing (2). An outer cooling fan impeller (22) provided outside the housing (2), generates an outer cooling air flow (B). The first end wall (14) is formed with a thermal conductivity of at least a specified value and has an outer cooling rib geometry (28) on its outer side facing the outer cooling fan impeller (22), and an inner cooling rib geometry (30) on its opposing inner side.

    摘要翻译: 一种在壳体(2)中具有定子(4)和由轴(6)支撑的转子(10)的旋转电机(1)。 壳体(2)周向壁(12)和第一和第二轴向相对的端壁(14,16)支撑轴承凸缘,轴承(18)用于轴(6)。 两个冷却风扇叶轮(20,22)连接到轴(6)。 位于壳体(2)内部的内部冷却风扇叶轮(20)在壳体(2)内部产生内部冷却空气回路(A)。 设置在壳体(2)外部的外部冷却风扇叶轮(22)产生外部冷却空气流(B)。 第一端壁(14)形成至少具有特定值的导热率,并且在其外侧面对外部冷却风扇叶轮(22)具有外部冷却肋几何形状(28)和内部冷却肋几何形状 30)在其内侧。

    Synchronous AC motor
    5.
    发明授权
    Synchronous AC motor 有权
    同步交流电机

    公开(公告)号:US06534946B2

    公开(公告)日:2003-03-18

    申请号:US09779316

    申请日:2001-02-08

    IPC分类号: G05B1940

    CPC分类号: H02P1/46

    摘要: The invention relates to a mains-commutated, synchronous AC motor (1) with permanent-magnet excitation, which is configured as an external-rotor motor with a permanent-magnet external rotor (6) which rotates around an inner stator. In this case, an electronic starting apparatus (2) is provided which actuates the stator (4) in order to start the external rotor (6) in such a manner that the external rotor (6) is accelerated in a controlled manner to its synchronous rotation speed, and then continues to run in the mains-commutated synchronous mode.

    摘要翻译: 本发明涉及具有永磁激励的电源换向同步交流电动机(1),其被配置为具有围绕内定子旋转的永磁体外转子(6)的外转子电动机。 在这种情况下,提供一种电子起动装置(2),其以使得外部转子(6)以受控方式加速到其同步的方式致动定子(4)以启动外部转子(6) 转速,然后在电源换向同步模式下继续运行。

    System for controlling the rotation of AC motors
    6.
    发明授权
    System for controlling the rotation of AC motors 失效
    用于控制交流电机旋转的系统

    公开(公告)号:US06208113B1

    公开(公告)日:2001-03-27

    申请号:US09399664

    申请日:1999-09-21

    IPC分类号: H02P528

    CPC分类号: H02P27/18 H02P25/04

    摘要: The present invention relates to a system for controlling the rotation speed of AC motors, in particular single phase motors. In this case, a controllable electronic switching device is connected upstream of the motor and is actuated by a control unit such that a sinusoidal input AC voltage is used to produce a motor AC voltage which can be varied in order to change the rotation speed. The control unit is designed in such a manner that the fundamental frequency and/or the amplitude of the motor AC voltage can be varied by phase gating.

    摘要翻译: 本发明涉及用于控制交流电动机,特别是单相电动机的转速的系统。 在这种情况下,可控电子开关装置连接在电动机的上游并由控制单元致动,使得使用正弦输入AC电压来产生可改变的电动机交流电压以便改变转速。 控制单元被设计成使得电动机AC电压的基频和/或振幅可以通过相位门控来改变。

    Circuit arrangement for driving an electrical circuit breaker at high voltage potential
    8.
    发明授权
    Circuit arrangement for driving an electrical circuit breaker at high voltage potential 有权
    用于驱动高电压电路的电路断路器的电路装置

    公开(公告)号:US07405609B2

    公开(公告)日:2008-07-29

    申请号:US11409332

    申请日:2006-04-21

    申请人: Jens Krotsch

    发明人: Jens Krotsch

    IPC分类号: H03K17/687

    CPC分类号: H02M3/155 H03K17/063

    摘要: The invention relates to an electrical circuit arrangement for driving switching power semiconductor components at high voltage potential with a control signal predetermining a switching information for the power semiconductor component and an output voltage directly controlling the power semiconductor component. A non-controllable semiconductor valve is used as component with high dielectric strength for transferring the switching energy and the switching information.

    摘要翻译: 本发明涉及一种用于通过预先确定功率半导体元件的开关信息的控制信号和直接控制功率半导体元件的输出电压来驱动高电压电压下的开关功率半导体元件的电路装置。 使用不可控制的半导体阀作为具有高绝缘强度的部件,用于传递开关能量和开关信息。

    Circuit arrangement for driving an electrical circuit breaker at high voltage potential
    9.
    发明申请
    Circuit arrangement for driving an electrical circuit breaker at high voltage potential 有权
    用于驱动高电压电路的电路断路器的电路装置

    公开(公告)号:US20060238947A1

    公开(公告)日:2006-10-26

    申请号:US11409332

    申请日:2006-04-21

    申请人: Jens Krotsch

    发明人: Jens Krotsch

    IPC分类号: H02H3/00

    CPC分类号: H02M3/155 H03K17/063

    摘要: The invention relates to an electrical circuit arrangement for driving switching power semiconductor components at high voltage potential with a control signal predetermining a switching information for the power semiconductor component and an output voltage directly controlling the power semiconductor component. A non-controllable semiconductor valve is used as component with high dielectric strength for transferring the switching energy and the switching information.

    摘要翻译: 本发明涉及一种用于通过预先确定功率半导体元件的开关信息的控制信号和直接控制功率半导体元件的输出电压来驱动高电压电压下的开关功率半导体元件的电路装置。 使用不可控制的半导体阀作为具有高绝缘强度的部件,用于传递开关能量和开关信息。