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公开(公告)号：US20110115329A1
公开(公告)日：2011-05-19
申请号：US12948232
申请日：2010-11-17
申请人： Yue LI , Jian Zhao , Yong Li , Yu Li Yang
发明人： Yue LI , Jian Zhao , Yong Li , Yu Li Yang
IPC分类号： H02K23/64
CPC分类号： H02K1/14
摘要： A universal motor includes a stator and a rotor rotatable relative to the stator. The stator includes a stator core and winding wound on the stator core. The stator core has an E-shape cross section and comprises a main part and three extension parts extending perpendicularly from the main part. Each extension part has an arc surface. The arc surfaces of the extension parts cooperatively form a space into which the rotor is received.
摘要翻译： 通用马达包括定子和可相对于定子旋转的转子。 定子包括定子芯和卷绕在定子芯上的绕组。 定子铁芯具有E形横截面，并包括主要部分和从主要部分垂直延伸的三个延伸部分。 每个延伸部分都有弧形表面。 延伸部分的弧形表面协同地形成转子接收到的空间。
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公开(公告)号：US20070278905A1
公开(公告)日：2007-12-06
申请号：US11810069
申请日：2007-06-04
申请人： Jun Isono
发明人： Jun Isono
IPC分类号： H02K23/64
CPC分类号： H01L41/083 , B41J2/14209 , B41J2002/14217 , B41J2002/14225 , B41J2002/14362 , B41J2002/14459 , B41J2002/14491 , B41J2202/20 , H01L41/0474 , H01L41/0475 , H01L41/0973 , Y10T29/49346
摘要： A piezoelectric actuator includes a first ceramic sheet having individual inner-electrodes formed thereon, a second ceramic sheet having a common inner-electrode formed thereon, a third ceramic sheet having individual surface-electrodes formed thereon, and a fourth ceramic sheet having a plurality of connection electrodes connecting the individual surface-electrodes and the individual inner-electrodes respectively. The connection electrodes have first portions, second portions and third portions respectively, the first portions facing the individual surface-electrodes and arranged at a pitch in a row in a row-direction, the second portions facing the individual inner-electrodes and being arranged in the row-direction to be shifted with respect to the first portions by half the pitch respectively; and the third portions connecting the first portions and the second portions respectively. Accordingly, the electrodes can be made compact or arranged highly densely without lowering the conductance between the electrodes.
摘要翻译： 压电致动器包括其上形成有单独的内部电极的第一陶瓷片，形成有共同的内部电极的第二陶瓷片，形成有各自的表面电极的第三陶瓷片，以及具有多个 分别连接各个表面电极和各个内部电极的连接电极。 连接电极分别具有第一部分，第二部分和第三部分，第一部分面向各个表面电极并且以行方向排列成一排，第二部分面向各个内部电极并且布置在 分别相对于第一部分偏移一半桨距的行方向; 以及分别连接第一部分和第二部分的第三部分。 因此，电极可以制造得紧凑或高密度地布置，而不降低电极之间的电导。
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公开(公告)号：US20050177251A1
公开(公告)日：2005-08-11
申请号：US11103486
申请日：2005-04-12
申请人： Charles Duppong
发明人： Charles Duppong
IPC分类号： G06F13/40 , G05B19/18 , G05B11/01 , H02K23/64 , H02P1/24 , H02P3/18 , H02P5/28 , H02P5/44 , H02P7/36 , H02P7/50
CPC分类号： G06F13/4068 , G05B2219/23417 , G05B2219/25265
摘要： A controller with attachments for controlling specific electronic circuits is disclosed. Each attachment has a connector connectable to the electronic circuit to be controlled, and a memory accessible by the controller that contains configuration data for accessing the electronic circuit, and operational software for operating the electronic circuit.
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公开(公告)号：US6016041A
公开(公告)日：2000-01-18
申请号：US936147
申请日：1997-09-22
申请人： Martin Weinmann
发明人： Martin Weinmann
CPC分类号： H02P25/145 , H02M3/155
摘要： A rotary speed control circuit for feeding a dc universal motor for driving a washing machine. A rectifier and a smoothing capacitor derive the operating voltage of the motor from the mains ac voltage and provided for control of the rotary speed is a regulating device (R) which controls a power stage for the motor, the power stage including a power switch (TR1) and a commutation diode (D1) in the topology of a low-setting device. The power stage feeding the motor includes a high-setting inductor (L) and can be switched over from the topology of a low-setting device to the topology of a high-setting device.
摘要翻译： 一种用于供给用于驱动洗衣机的直流通用电动机的转速控制电路。 整流器和平滑电容器从电源交流电压导出电动机的工作电压，为控制转速提供控制电机的功率级的调节装置（R），功率级包括电源开关（ TR1）和一个换向二极管（D1）在低设置的拓扑结构中。 供电电机的功率级包括一个高设置电感（L），可以从低设置的拓扑切换到高设置的拓扑结构。
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5.发明授权
公开(公告)号：US4527101A
公开(公告)日：1985-07-02
申请号：US554571
申请日：1983-11-23
申请人： Wayne Zavis , David A. Saar
发明人： Wayne Zavis , David A. Saar
IPC分类号： H02P29/00 , G01P3/48 , G06F15/332 , H02K23/64
CPC分类号： G01P3/48 , Y10S388/904
摘要： An indirect speed sensor for an electric motor, such as an electric motor of the universal type, provides for a resistive element in series with the motor windings so that current pertubations that occur as a consequence of armature rotation are manifested as speed-dependent voltage signals across the resistive element. The voltage signals are amplified and filtered to remove frequency components above and below the expected signal spectrum and then provided to an analog-to-digital converter that converts the filtered analog signal to digital values that are stored in a memory. A stored-program controlled microprocessor analyzes the stored digital information by performing a fast Fourier transform to provide an equivalent amplitude spectrum. The maximum amplitude spectral component is then identified to determine the speed of the motor.
摘要翻译： 用于诸如通用型电动机的电动机的间接速度传感器提供与电动机绕组串联的电阻元件，使得作为电枢旋转的结果发生的电流表现为速度相关的电压信号 跨越电阻元件。 电压信号被放大和滤波以去除高于和低于预期信号频谱的频率分量，然后提供给模数转换器，其将滤波的模拟信号转换为存储在存储器中的数字值。 存储程序控制的微处理器通过执行快速傅里叶变换来提供等效幅度谱来分析存储的数字信息。 然后识别最大幅度谱分量以确定电动机的速度。
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公开(公告)号：US4479077A
公开(公告)日：1984-10-23
申请号：US516269
申请日：1983-07-22
申请人： Patrice J. Kemmel , Jurgen Hartwig
发明人： Patrice J. Kemmel , Jurgen Hartwig
CPC分类号： D05B69/18 , Y10S388/917
摘要： In a sewing machine with a universal motor, a speed control for the motor, a lamp, and a plug connection on the sewing machine housing for connecting the power supply and speed control lines to the motor and to the lamp, for equivalent replacement of the normal impedance starter by one with integrated phase angle control, a phase angle control is provided as a speed controller which comprises a rectifier bridge consisting of diodes for current supply to the phase angle control and to the lamp, as well as a rectifier bridge with semiconductor devices controlled by the phase angle control, for the control of the motor. To leave the known three-terminal plug connection on the sewing machine housing for the connection both of the power supply and for the phase angle control, the power supply leads are connected at both rectifier bridges, the negative terminals of which are connected to the common terminal of the motor and lamp, which the positive terminal of the phase angle-controlled rectifier bridge is connected to the second terminal of the motor. The positive terminal of the diode rectifier bridge is connected to the second terminal of the lamp.
摘要翻译： 在具有通用电动机的缝纫机中，缝纫机壳体上的马达，灯和插头连接的速度控制，用于将电源和速度控制线连接到电动机和灯，用于相当地更换 具有集成相位角控制的正常阻抗启动器，提供相位角控制作为速度控制器，其包括由用于向相位角控制和灯供电的二极管组成的整流桥，以及具有半导体的整流桥 由相位角控制控制的装置，用于控制电机。 为了将电源和相位角控制的连接两端的电源线连接在缝纫机外壳上，将两个整流桥连接，其负极端子与公共端 电动机和灯的端子，相角控制整流桥的正端子连接到电动机的第二端子。 二极管整流桥的正极连接到灯的第二端。
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公开(公告)号：US3668490A
公开(公告)日：1972-06-06
申请号：US3668490D
申请日：1971-01-20
发明人： CONLON WILLIAM J
CPC分类号： H02K23/66
摘要： A universal motor field tapped for speed control is serially connected at one end through the armature to one side of an electrical potential. An operationally interlocked series of ON and OFF switches selectively interconnect the field taps to the other side of the electrical potential and a light bulb bridges said one side of the electrical potential and the other end of the field for substantially constant illumination of a working area at all speeds without need for a separate light switch.
摘要翻译： 用于速度控制的通用电机磁场一端通过电枢串联连接到电位的一侧。 操作上互锁的一系列ON和OFF开关选择性地将场抽头互连到电位的另一侧，并且灯泡将电位的一侧和场的另一端桥接，以基本恒定地照射工作区域 所有速度无需单独的灯开关。
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公开(公告)号：US10903730B2
公开(公告)日：2021-01-26
申请号：US16252346
申请日：2019-01-18
发明人： Qian Xu , Shibo Chen
摘要： A power tool includes a motor, a first power source access circuit, a first drive circuit, a second power source access circuit and a second drive circuit. The motor includes a rotor, a stator, a plurality of first-type windings and a plurality of second-type windings. The rotor is configured to rotate about a central axis. The stator includes a ring-shaped yoke portion, and a plurality of teeth. The plurality of first-type windings are configured to be wound around part of the plurality of teeth and the plurality of second-type windings are configured to be wound around other part of the plurality of teeth. The first power source access circuit is configured to access a first power source with a first voltage. The first drive circuit includes a plurality of first-type electronic switches connected between the plurality of first-type windings and the first power source access circuit. The second power source access circuit is configured to access a second power source with a second voltage. The second drive circuit includes a plurality of second-type electronic switches connected between the plurality of second-type windings and the second power source access circuit. The plurality of first-type windings and the plurality of second-type windings are spaced in a circumferential direction of the central axis.
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公开(公告)号：US10413146B2
公开(公告)日：2019-09-17
申请号：US15620089
申请日：2017-06-12
申请人： Emerson Electric Co.
摘要： An upright vacuum cleaner includes a cleaning head having a suction opening defined along a bottom thereof, a handle assembly connected to the cleaning head, a motor, and a blower connected to the motor and operable to generate suction through the suction opening upon operation of the motor. The vacuum cleaner further includes an electrical connection interface selectively connectable to a direct current (DC) power source and an alternating current (AC) power source. The electrical connection interface is electrically connectable to the motor via an electrical path such that an AC current is supplied to the motor when the AC power source is connected to the electrical connection interface, and a DC current is supplied to the motor when the DC power source is connected to the electrical connection interface.
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