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公开(公告)号：US5608281A
公开(公告)日：1997-03-04
申请号：US554123
申请日：1995-11-06
申请人： Dieter Gerling , Peter Lurkens
发明人： Dieter Gerling , Peter Lurkens
CPC分类号： H02K17/165
摘要： An axial flux induction motor has a stator and a disc-shaped rotor facing the stator with an air gap there-between. The rotor disc includes a first material of relatively high magnetic permeability and a second material of relatively high electrical conductivity, the first material being of higher specific gravity than the second material. The first material is in the form of an annular ring imbedded in or supported on one surface of the disc, opposite the surface thereof which faces the stator. The outer radius R.sub.1 of the annular ring and the outer radius R.sub.2 of the disc are related so that 1.2 R.sub.1
摘要翻译： 轴向感应电动机具有定子和面向定子的盘形转子，其间具有气隙。 转子盘包括具有较高导磁率的第一材料和相对较高导电率的第二材料，第一材料比第二材料具有更高的比重。 第一种材料是嵌入或支撑在盘的一个表面上的环形的形式，与其面对定子的表面相对。 环形圈的外半径R1和盘的外半径R2相关，使得1.2 R1
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92.发明授权Method and apparatus for transducerless flux estimation in drives for induction machines 失效感应电机驱动器中无传感器通量估计的方法和装置
公开(公告)号：US5559419A
公开(公告)日：1996-09-24
申请号：US263142
申请日：1994-06-21
IPC分类号： H02K1/26 , H02K15/00 , H02K17/02 , H02K17/16 , H02K17/30 , H02P21/00 , H02P21/14 , H02P27/04 , H02P29/00 , H02P5/40
CPC分类号： H02P21/13 , H02K17/165 , H02K17/30 , H02P21/141 , H02P21/18 , H02P21/26 , H02P21/34 , H02P6/183 , G01R31/343 , H02K15/0006
摘要： Power is provided to the stator windings of an AC induction machine which includes a component at the fundamental drive frequency for the machine and a superimposed signal component which is at a substantially higher frequency than the drive power. The fundamental drive power is provided at a level which results in saturation in the stator which follows the magnetic flux vector. The stator response at the signal frequency is then detected to provide a correlation between the response at the signal frequency and the magnetic flux vector position. The detection of the response at the signal frequency is preferably carried out by a heterodyne detection process, by mixing signals at the signal frequency with the measured stator currents, and filtering the mixed signals to isolate the signal indicative of the flux vector position.
摘要翻译： 电力被提供给AC感应电机的定子绕组，其包括用于机器的基本驱动频率的分量和比驱动功率高得多的叠加信号分量。 基本驱动功率被提供在导致定子中饱和的水平，该定子跟随磁通量矢量。 然后检测信号频率处的定子响应，以提供信号频率响应与磁通矢量位置之间的相关性。 在信号频率处的响应的检测优选地通过外差检测处理来进行，通过将信号频率处的信号与所测量的定子电流混合，并对混合信号进行滤波以隔离指示通量矢量位置的信号。
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公开(公告)号：US4886991A
公开(公告)日：1989-12-12
申请号：US763032
申请日：1985-08-06
申请人： Ernst Braun
发明人： Ernst Braun
摘要： A spinning or twisting element is provided with an integral asynchronous motor having a laminate stator and a laminate rotor fixed to the shaft of the element. The individual laminates of the stator and rotor are each less than 0.3 mm in thickness and the stator is provided with at least 24 slots.
摘要翻译： 旋转或扭转元件设置有整体异步电动机，其具有层压定子和固定到元件的轴上的层压转子。 定子和转子的单个层压板的厚度均小于0.3mm，并且定子设置有至少24个槽。
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公开(公告)号：US4554472A
公开(公告)日：1985-11-19
申请号：US504165
申请日：1983-06-14
申请人： Hiroshi Kumatani
发明人： Hiroshi Kumatani
CPC分类号： H02K9/06 , H02K17/16 , H02K7/1025
摘要： A low inertia induction motor to increase to speed responding characteristic at the time of its start and stop comprises a stator core fixed inside a frame, a yoke disposed in confrontation to the stator core with a space gap and a rotor interposed within the space gap between the yoke and the stator core. A through-hole is formed at the center portion of the frame for supporting the yoke or the stator core, a rotationary shaft is rotatably inserted into the through-hole and the rotational shaft is attached with a rotational plate for supporting the rotor and a cooling fan for feeding cooling air in the interior of the frame.
摘要翻译： 一种低惯性感应电动机在其启动和停止时增加到速度响应特性包括固定在框架内的定子铁芯，与定子铁心对置设置的磁轭，空间间隙和位于 轭和定子芯。 在框架的中央部形成有用于支撑轭铁或定子铁芯的通孔，旋转轴可旋转地插入到通孔中，旋转轴安装有用于支撑转子的旋转板和冷却 用于在框架内部供给冷却空气的风扇。
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公开(公告)号：US4081726A
公开(公告)日：1978-03-28
申请号：US638519
申请日：1976-01-05
IPC分类号： H02K17/02 , D06F37/30 , H02K1/02 , H02K1/12 , H02K3/04 , H02K17/08 , H02K17/16 , H02K41/025 , H02K17/00
CPC分类号： D06F37/304 , H02K17/08 , H02K17/16 , H02K41/025
摘要： An electric induction motor having at least two phases and including opposed slotted stator bodies or pole pieces with each slot receiving a radially extending leg or like portion of at least one coil winding, and with the stator being preferably of an annular, segmented configurationand the rotor being a low inertia, non-magnetic, radially slotted, electrically conductive disc axially spaced from the face of the stator bodies. The motor is particularly adapted for direct drive of rapidly reversible driven members, such as washing machine agitators or the like, and is characterized by high starting torque and a relatively direct proportional relation between the applied voltage and available output torques. In use, the motor operates at varying speeds and torque as it reverses direction and accelerates to a given rotational velocity, drawing substantially constant power during use. The current paths characterizing the unit are similar to the currents in a squirrel cage motor, while an axial gap, low inertia rotor provides the advantages of easy reversibility and maximal heat loss.
摘要翻译： 一种具有至少两相的电感应电动机，并且包括相对的开槽定子体或极片，每个槽容纳至少一个线圈绕组的径向延伸的腿部或类似部分，并且定子优选地为环形分段构造，转子 是与定子体的表面轴向间隔开的低惯性，非磁性的，径向开槽的导电盘。 电动机特别适用于直接驱动诸如洗衣机搅拌器等的快速可逆驱动构件，其特征在于高起动转矩和施加电压与可用输出转矩之间的相对直接的比例关系。 在使用中，电机以变化的速度和扭矩运行，因为它反转方向并加速到给定的旋转速度，在使用过程中基本上保持恒定的功率。 表征单元的电流路径与鼠笼式电动机中的电流相似，而轴向间隙，低惯性转子提供易于可逆性和最大热损失的优点。
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公开(公告)号：US4072880A
公开(公告)日：1978-02-07
申请号：US709511
申请日：1976-07-28
申请人： Seiichi Oshima , Mamoru Miyamoto
发明人： Seiichi Oshima , Mamoru Miyamoto
CPC分类号： H02P1/28 , Y10S323/91
摘要： A starting control apparatus for an AC load includes a bidirectional triode thyristor switching device connected in series between an AC power source and the load, a rectifying circuit connected in parallel to the bidirectional triode thyristor switching device, a first time constant circuit connected between output terminals of the rectifying circuit which discharges to turn on the bidirectional triode thyristor switching device when the charged potential reaches a predetermined potential, a second time constant circuit connected between the output terminals of the rectifying circuit and having a time constant larger than the time constant of the first time constant circuit and maintaining the charged potential in the ON state of the bidirectional triode thyristor switching device, and a speedy charging device which rapidly increases the charged potential to the sustaining potential of the second time constant circuit during the recharging period for the first time constant circuit while recovering the controlling ability of the bidirectional triode thyristor switching device and which gradually decreases the period for charging the first time constant circuit to the predetermined potential. When the load is an inductive load such as an induction motor, a third time constant circuit having a time constant larger than the time constant of the second time constant circuit is preferably connected between output terminals of the rectifying circuit.
摘要翻译： 一种用于交流负载的启动控制装置包括串联连接在交流电源和负载之间的双向三极管晶闸管开关装置，与双向三极管晶闸管开关装置并联连接的整流电路，连接在输出端子之间的第一时间常数电路 在所述整流电路的输出端子之间连接的第二时间常数电路，所述第二时间常数电路的时间常数大于所述整流电路的时间常数 第一次恒定电路并且将充电电位保持在双向三极管晶闸管开关装置的导通状态，以及快速充电装置，其在第一次充电期间将充电电位迅速地增加到第二时间常数电路的维持电位 恒定电路 回收双向三极管晶闸管开关器件的控制能力，并逐渐减少将第一时间常数电路充电至预定电位的周期。 当负载是诸如感应电动机的感性负载时，具有大于第二时间常数电路的时间常数的时间常数的第三时间常数电路优选地连接在整流电路的输出端子之间。
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97.发明授权
公开(公告)号：US4028600A
公开(公告)日：1977-06-07
申请号：US577918
申请日：1975-05-15
申请人： Felix Blaschke , Herwig Klautschek
发明人： Felix Blaschke , Herwig Klautschek
CPC分类号： H02P21/10
摘要： A method and apparatus for operating a rotating field machine, which is controlled by an inverter of the type which provides only a predetermined limited number of discrete positions of the stator current vector, in such a manner so that when it is desired to position the machine between two of the discrete vector positions, the discrete positions on each side of the desired vector position are alternatively energized resulting in an average position which is the desired vector position. For operation in a system where the vector can only rotate in one direction apparatus is disclosed which permits the alternate energization to occur by moving the vector at the maximum possible speed over the portion of rotation which is outside an area surrounding the desired position and moving it more slowly while inside this area.
摘要翻译： 一种用于操作旋转场机的方法和装置，其由这样一种类型的逆变器控制，该逆变器仅提供定子电流矢量的预定有限数量的离散位置，使得当希望定位机器时 在两个离散矢量位置之间，期望矢量位置的每一侧上的离散位置交替地被激励，导致作为期望矢量位置的平均位置。 为了在矢量只能沿一个方向旋转的系统中进行操作，公开了一种允许通过在围绕期望位置的区域外部的旋转部分以最大可能速度移动矢量来进行交替通电的装置，并移动它 在这个地区里面比较慢。
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公开(公告)号：US3921017A
公开(公告)日：1975-11-18
申请号：US44332774
申请日：1974-02-19
摘要： Electric poly-phase motor comprising an annular stator assembly having a rotor cavity and a rotor rotatably mounted in the rotor cavity, said stator assembly comprising a plurality of axially directed, magnetically isolated sections each representing an electric phase and each including a plurality of superimposed laminations having side edge portions generally aligned with the axis of the rotor cavity and turned radially inwardly toward the rotor cavity, said side edge portions being circumferentially spaced relative to one another, windings surrounding the yoke portion of the laminations between the turned in side edge portions and a moulding mass encapsulating the laminations and windings and filling the space between the turned in side edge portions except for the outer terminal ends of said side edge portions.
摘要翻译： 电动多相电动机包括具有转子空腔的环形定子组件和可旋转地安装在转子腔中的转子，所述定子组件包括多个轴向指向的磁隔离部分，每个部分代表电相，并且每个包括多个叠加的叠片 其侧边缘部分大致与转子腔体的轴线对准，并且朝向转子腔体径向向内转动，所述侧边缘部分相对于彼此沿周向间隔开，围绕折叠的侧边缘部分之间的叠片的轭部分的绕组和 封装叠片和绕组的模制材料，并且填充除了所述侧边缘部分的外端部之外的转向侧边缘部分之间的空间。
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公开(公告)号：US3651355A
公开(公告)日：1972-03-21
申请号：US3651355D
申请日：1970-05-08
申请人： MASON ELMER B
发明人： MASON ELMER B
CPC分类号： H02K16/00
摘要： A direct current motor having at least two armatures arranged in parallel between parallel magnetic circuits established through the armatures independently exciting the armatures. In one embodiment a pair of iron core coils, positioned on respective opposing sides of a pair of armatures, provides the magnetic circuit. In another embodiment an iron core coil, interposed between two or more parallel armatures, forms the magnetic circuit. This common source of magnetic excitation forms parallel magnetic circuits wherein the motor has a dual operating characteristic in that the speed of one armature varies inversely with the speed of the other armature and vice versa until the higher speed armature reaches its critical rpm permitting the load to be increased without further change in the speed of either armature.
摘要翻译： 具有至少两个电枢的直流电动机并联设置在通过电枢独立地激励电枢而建立的并联磁路之间。
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公开(公告)号：US3500092A
公开(公告)日：1970-03-10
申请号：US3500092D
申请日：1967-06-30
申请人： LICENTIA GMBH
IPC分类号： H02K17/02
CPC分类号： H02K17/02
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