Rotor core utilizing laminations having slots with dual direction skew portions
    1.
    发明授权
    Rotor core utilizing laminations having slots with dual direction skew portions 有权
    转子芯采用具有双向偏斜部分的槽的叠片

    公开(公告)号:US06777847B1

    公开(公告)日:2004-08-17

    申请号:US09806606

    申请日:2001-04-02

    IPC分类号: H02K1716

    摘要: Divided magnet rotors R having a stepped skew rather than a helical skew are described. The stepped skew enables the use of straight magnet sections (44) that can be inserted into the rotor core notches (38) thereby eliminating the need to produce a helix from the rotor cage. The stepped skew is effective in decoupling stator slot order harmonics. In addition, the stepped skew rotor R includes, in some embodiments, open slots (22) so that the rotor is not subject to rotor bridge saturation.

    摘要翻译: 描述具有阶梯式偏斜而不是螺旋偏斜的分割磁体转子R。 阶梯式歪斜使得能够使用能够插入到转子芯槽口(38)中的直磁体部分(44),从而消除了从转子笼产生螺旋的需要。 阶梯偏移有效地解耦定子槽次谐波。 此外,在一些实施例中,阶梯式偏转转子R包括开槽(22),使得转子不受转子桥饱和。

    High torque reduced starting current electric motor
    2.
    发明授权
    High torque reduced starting current electric motor 失效
    高扭矩降低起动电流电动机

    公开(公告)号:US06246141B1

    公开(公告)日:2001-06-12

    申请号:US09298712

    申请日:1999-04-23

    申请人: Mark W. Bailey

    发明人: Mark W. Bailey

    IPC分类号: H02K1716

    CPC分类号: H02K17/205

    摘要: An AC squirrel cage motor runs with a rotor current frequency equal to the slip of the motor times its excitation frequency. It is desirable to reduce the rotor current on start up by means of an increased resistance, and then to run the motor with a reduced resistance once it is started. This invention takes advantage of the skin effect of high frequency currents by increasing rotor end ring resistance during startup. After the motor has started up, and has reached full speed, the rotor frequency is reduced to merely the slip multiplied by the stator frequency. The skin effect on the rotor current is less, and the motor runs with reduced resistance.

    摘要翻译: AC鼠笼式电动机的转子电流频率等于电机的滑差乘以其励磁频率。 期望通过增加的电阻来减少启动时的转子电流,然后一旦启动,则电阻降低。 本发明通过增加启动时的转子端环电阻来利用高频电流的效果。 电机起动后达到全速,转子频率减小到仅次于定子频率的滑差。 转子电流对皮肤的影响较小,电机的阻力减小。

    Magnetically levitated motor
    3.
    发明授权

    公开(公告)号:US06611073B2

    公开(公告)日:2003-08-26

    申请号:US10060089

    申请日:2002-01-29

    IPC分类号: H02K1716

    摘要: A rotor includes four magnetic poles provided in a rotational direction at intervals of 90 degrees. A stator includes a winding group for rotation and a winding group for levitation. Each of the winding groups has concentrated windings spaced at intervals of 30 degrees in a rotational direction to provide induction conductive winding sections at twelve locations. Each two of the induction conductive winding sections spaced at an interval of 90 degrees among the twelve induction conductive winding sections are connected to form one winding set such that six winding sets are formed in total in each of the winding groups. Current for rotation and current for levitation are conducted through the six winding sets in the windings for rotation and levitation to perform rotation and levitation controls of the rotor.

    Rotating machine with cooled hollow rotor bars
    4.
    发明授权
    Rotating machine with cooled hollow rotor bars 有权
    带冷却空心转子棒的旋转机

    公开(公告)号:US06772504B2

    公开(公告)日:2004-08-10

    申请号:US10730395

    申请日:2003-12-08

    IPC分类号: H02K1716

    摘要: A rotating machine including a rotating shaft: a plurality of conductive rotor bars spaced from the rotating shaft and fixed to the rotating shaft through at least one intermediate member, where at least one of the plurality of conductive rotor bars have at least one first internal conduit; and a circulator for establishing a coolant circulation through the first internal conduit.

    摘要翻译: 一种旋转机械,包括旋转轴:多个导电转子杆,其与所述旋转轴间隔开并通过至少一个中间构件固定到所述旋转轴,其中所述多个导电转子棒中的至少一个具有至少一个第一内部导管 ; 以及用于建立通过第一内部导管的冷却剂循环的循环器。

    Single phase line start permanent magnet synchronous motor
    5.
    发明授权
    Single phase line start permanent magnet synchronous motor 失效
    单相线启动永磁同步电机

    公开(公告)号:US06707216B2

    公开(公告)日:2004-03-16

    申请号:US10041499

    申请日:2002-01-10

    IPC分类号: H02K1716

    摘要: A single phase line start permanent magnet synchronous motor is started by an interaction between magnetic fields of the coil and of the secondary conductor, and an normal operation can be performed using only the permanent magnet and the operating condenser of small capacity, only the main coil, or only the operating condenser when the synchronous rotating speed is reached and the rotation is started, and therefore an additional direct current supplying device for supplying the direct current and the position sensor for sensing the rotational position of the rotor can be excluded, the structure can be made compactly by constructing the driving circuit simply, and manufacturing cost can be reduced.

    摘要翻译: 通过线圈和次级导体的磁场之间的相互作用来启动单相线启动永磁同步电动机,并且只能使用小容量的永磁体和操作电容器来执行正常操作,只有主线圈 或仅当达到同步转速并开始旋转时才使用冷凝器,因此可以排除用于提供直流电流的附加直流供应装置和用于感测转子旋转位置的位置传感器,结构 可以通过简单地构造驱动电路来紧凑地制造,并且可以降低制造成本。

    Variable-speed electromechanical energy converter
    6.
    发明授权
    Variable-speed electromechanical energy converter 失效
    变速机电能量转换器

    公开(公告)号:US06380655B1

    公开(公告)日:2002-04-30

    申请号:US09463619

    申请日:2000-01-28

    IPC分类号: H02K1716

    CPC分类号: H02K17/16 H02K16/02 H02K17/42

    摘要: A variable-speed electromechanical energy converter includes a wound-type induction motor and a power rectifier connected to a secondary winding of the motor to convert AC power produced by the motor into DC power. A chopper is connected to an output of the power converter to control the output thereof according to a control signal and a capacitor is connected through a rectifier device to the chopper. A power inverter converts DC power stored in the capacitor into AC power which is fed back to an AC system connected to the motor. The motor includes a cage rotor disposed between a wound rotor and a rotor shaft, the cage rotor being separated from the rotor shaft by an inner gap and separated from the wound rotor by a middle gap so as to rotate independently of the rotor shaft.

    摘要翻译: 变速机电能量转换器包括绕组式感应电动机和连接到电动机的次级绕组的功率整流器,以将由电动机产生的交流电力转换为直流电力。 斩波器连接到功率转换器的输出端,以根据控制信号控制其输出,并且电容器通过整流器件连接到斩波器。 电力逆变器将存储在电容器中的直流电力转换为交流电力,其被反馈到连接到电动机的交流系统。 电动机包括设置在绕线转子和转子轴之间的保持架转子,保持架转子通过内部间隙与转子轴分离,并且与卷绕转子分隔开中间间隙,以独立于转子轴旋转。

    Permanent magnet synchronous motor
    8.
    发明授权
    Permanent magnet synchronous motor 有权
    永磁同步电机

    公开(公告)号:US06727627B1

    公开(公告)日:2004-04-27

    申请号:US10019286

    申请日:2002-01-02

    IPC分类号: H02K1716

    CPC分类号: H02K1/276 H02K21/46

    摘要: A synchronous motor includes a stator, a rotor and permanent magnets. The rotor includes a rotor iron core and rotatable relative to the stator, a plurality of conductor bars accommodated within corresponding slots in the rotor iron core. The conductor bars have their opposite ends shortcircuited by respective shortcircuit rings to form a starter squirrel cage conductor. The rotor also have a plurality of magnet retaining slots defined therein at a location on an inner side of the conductor bars, in which hole permanent magnets are embedded.

    摘要翻译: 同步电动机包括定子,转子和永磁体。 转子包括转子铁芯并且可相对于定子旋转,多个导体杆容纳在转子铁芯中的相应槽内。 导体条的相对端由相应的短路环短路以形成起动器鼠笼导体。 转子还具有限定在其内的多个磁体保持槽,导体棒的内侧上的一个位置处嵌有孔永久磁体。

    Controlled reluctance AC induction motor
    9.
    发明授权
    Controlled reluctance AC induction motor 失效
    控制磁阻交流感应电动机

    公开(公告)号:US06639338B1

    公开(公告)日:2003-10-28

    申请号:US09655576

    申请日:2000-09-06

    申请人: Lambert Haner

    发明人: Lambert Haner

    IPC分类号: H02K1716

    摘要: An electric motor operated by AC current, that includes a stator and a rotor supported for rotation about an axis relative to the stator. The stator is provided with field windings angularly distributed about the rotor axis and capable of producing a magnetic field vector in the space of the rotor. Circuitry delivers AC current to the windings in a manner that produces an AC magnetic field vector that moves around the axis of the rotor. The rotor has a construction, such as an axially extending conductive loop, that changes its reluctance in the AC magnetic field depending on its orientation to the AC magnetic field vector whereby the rotor is caused to rotate in synchronization with the movement of the AC magnetic field vector.

    摘要翻译: 一种由AC电流操作的电动机,其包括一个定子和一个转子,用于相对于定子围绕一个轴线旋转。 定子设置有围绕转子轴线成角度地分布的场绕组,并且能够在转子的空间中产生磁场矢量。 电路以产生绕转子轴线移动的交流磁场矢量的方式将交流电流提供给绕组。 转子具有诸如轴向延伸的导电回路的结构,其根据其对AC磁场矢量的取向改变其在交流磁场中的磁阻,从而使转子与AC磁场的移动同步地旋转 向量。

    Cage-type induction motor for high rotational speeds
    10.
    发明授权
    Cage-type induction motor for high rotational speeds 有权
    笼式感应电动机用于高转速

    公开(公告)号:US06566778B1

    公开(公告)日:2003-05-20

    申请号:US09648808

    申请日:2000-08-28

    IPC分类号: H02K1716

    摘要: A rotor 10 has a structure with a rotor core 12 and rotor conductors 14, the rotor core 12 is made of a weakly magnetic substance with a high permeability and a relatively low electrical conductivity, and the rotor conductors 14 are composed of a conducting material with a low permeability and a relatively high electrical conductivity. Also, the rotor core 12 and the rotor conductors 14 are formed into a single body that has an entire-surface with a smooth cylindrical shape. Furthermore, a stator 20 is composed of a plurality of stator sheets 22 laminated in the axial direction and a stator winding 24. Each stator sheet is formed with a closed circular inner ring portion 22a and an outer ring portion 22b, with slots 23 that penetrate the sheets between the ring portions, and the stator winding is housed in the slots.

    摘要翻译: 转子10具有转子芯12和转子导体14的结构,转子芯12由具有高磁导率和较低导电性的弱磁性物质制成,并且转子导体14由具有 低渗透性和较高的导电性。 此外,转子铁芯12和转子导体14形成为具有平滑圆筒形的整个表面的单体。 此外,定子20由沿轴向层叠的多个定子片22和定子绕组24构成。每个定子片形成有封闭的圆形内圈部分22a和外环部分22b,其中穿过槽23 环部之间的片和定子绕组容纳在槽中。