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    • 1. 发明申请
    • BRUSHLESS MOTOR
    • 无刷电机
    • US20100176756A1
    • 2010-07-15
    • US12602097
    • 2008-05-12
    • Toshiaki Kawashima
    • Toshiaki Kawashima
    • H02P6/20H02P6/18
    • H02P6/18H02P1/24H02P6/20H02P21/00H02P27/04H02P29/00
    • To further improve the stability of drive control for the start period of a motor without complicating a circuit configuration.During the period in which the rotational speed of a rotor does not reach the rotational speed capable of locking a PLL circuit, a drive control method of two-phase mode in which a start current is supplied by two energizing patterns is used. In energizing pattern A, a current is caused to flow in a motor winding in the direction from U to W and in the direction from V to W at the same time. In energizing pattern B, a current is caused to flow in the motor winding in the direction from W to U and in the direction from W to V at the same time. A potential difference Vu-v between a U phase and a V phase in which the phase and magnitude of voltage drop due to inductance are equal is detected. Based on the detected potential difference Vu-v, a magnetic flux estimation signal φu-v is calculated by an integrator. Then, based on the magnetic flux estimation signal φu-v, an ROT signal is sent from a comparator. The energizing pattern of the start current is switched over according to the ROT signal, and torque in the normal rotation direction is developed, by which the rotor is accelerated.
    • 为了进一步提高电动机起动周期的驱动控制的稳定性,不会使电路结构复杂化。 在转子的旋转速度未达到能够锁定PLL电路的转速的期间中,使用通过两个通电图案供给起动电流的两相模式的驱动控制方法。 在通电模式A中,使电流在电动机绕组中从U到W的方向以及从V到W的方向同时流动。 在通电图案B中,使电流从W向U方向从W向V方向流动。 检测U相和V相之间的电位差Vu-v,其中由电感引起的电压降的相位和幅度相等。 基于检测到的电位差Vu-v,由积分器计算磁通量估计信号u u v。 然后,基于磁通量估计信号&phgr; u-v,从比较器发送ROT信号。 启动电流的通电模式根据ROT信号切换,并且正常旋转方向的转矩被显影,转子被加速。
    • 2. 发明授权
    • Brushless repulsion motor
    • 无刷斥力电机
    • US06321032B1
    • 2001-11-20
    • US09566887
    • 2000-05-08
    • William M. JonesLambert Haner
    • William M. JonesLambert Haner
    • H02P517
    • H02K37/00H02K29/10H02P1/24H02P6/00H02P25/102
    • A brushless repulsion motor which includes a stator and rotor rotatably mounted on the stator is provided. The stator and rotor are contained within a first housing, the stator having at least one pair of poles, a field winding on the stator for producing a field on the stator, and a plurality of coils on the rotor adapted to electromagnetically interact with the field of the stator winding. Switches are located on the rotor shaft outside the first housing to selectively short successive ones of the coils when the coils are in a preferred angular position relative to the stator poles. Thus, the stator field is effective to induce a current in the rotor and produce a resultant relative rotation between the rotor and the stator which can be controlled by non-contact signaling means which activate the switches.
    • 提供了包括可旋转地安装在定子上的定子和转子的无刷排斥电动机。 定子和转子包含在第一壳体内,定子具有至少一对极,定子上的励磁绕组,用于产生定子上的磁场,转子上的多个线圈适于与磁场电磁相互作用 的定子绕组。 当线圈处于相对于定子极的优选角度位置时,开关位于第一壳体外部的转子轴上以选择性地缩短连续的线圈。 因此,定子磁场有效地感应转子中的电流并且产生转子和定子之间的合成的相对旋转,其可以由激活开关的非接触信号装置来控制。
    • 6. 发明申请
    • SYSTEM AND METHOD FOR SOFT STARTING AND STOPPING OF A MOTOR
    • 用于软启动和停止电动机的系统和方法
    • US20160173008A1
    • 2016-06-16
    • US14567592
    • 2014-12-11
    • Solcon Industries Ltd.
    • Yoram WALTUCH
    • H02P1/24H02P6/20H02P27/06H02P3/18
    • H02P1/24H02P1/04H02P3/18H02P6/20H02P27/06
    • A soft starter device generates an output voltage of variable amplitude, frequency and phase. An output switch connects the soft starter device to a motor. A bypass switch connects the motor to a line voltage. A controller is configured operate the soft starter device to generate an output voltage that is synchronized with the line voltage. The bypass or output switch may be activated to open or close at an activation time, and a delay time between the activation time and a contact time when the switch opens or closes may be measured. The measured delay time may be utilized to update a value of a representative delay time for the switch. The representative delay time may be utilized to predict a contact time for the switch, or to select an activation time based on a target contact time for opening or closing the switch.
    • 软起动器装置产生可变幅度,频率和相位的输出电压。 输出开关将软启动器连接到电机。 旁路开关将电机连接到线路电压。 配置控制器操作软起动器装置以产生与线路电压同步的输出电压。 可以在启动时激活旁路或输出开关以打开或关闭,并且可以测量当开关打开或关闭时的启动时间和接触时间之间的延迟时间。 测量的延迟时间可用于更新交换机的代表性延迟时间的值。 可以利用代表性的延迟时间来预测开关的接触时间,或者基于用于打开或关闭开关的目标接触时间来选择激活时间。
    • 8. 发明申请
    • MOTOR STARTING AND SWITCHING
    • 电机起动和开关
    • US20110210615A1
    • 2011-09-01
    • US12869912
    • 2010-08-27
    • Peter UnsworthJames Joseph Kinsella
    • Peter UnsworthJames Joseph Kinsella
    • H02J3/42
    • H02P1/24H02P1/029H02P1/26Y10T307/735
    • A method of starting and apparatus for starting a multiphase electrical machine is disclosed. The aim is to reduce oscillatory pulsation in torque generated by the motor and inrush current that occurs shortly after start-up. The starting method comprises the steps of first connecting at least one, but less than all, of a plurality of windings to a respective phase-shifted supply voltage at a controlled point in the supply phase. Then, after a controlled delay following the first connection, connecting the or each remaining winding of the machine a respective phase-shifted supply voltage. The invention has particular application to multiphase (most usually, 3-phase) motors. However, it can also be applied to other electrical machines, such as generators and transformers. The method can be performed at initial start-up or, in the case of application to a motor, at Y-delta switchover.
    • 公开了一种起动方法和启动多相电机的装置。 目的是减少电机产生的转矩振荡脉动和启动后不久发生的浪涌电流。 启动方法包括以下步骤:在供电阶段的受控点处首先将多个绕组中的至少一个但不是全部的绕组连接到相应的相移电源电压。 然后,在第一次连接之后的受控延迟之后,将机器的每个剩余绕组连接到相应的相移电源电压。 本发明特别适用于多相(最通常的三相)电动机。 然而,它也可以应用于其它电机,例如发电机和变压器。 该方法可以在初始启动时进行,或者在应用于电动机的情况下,以Y-Delta切换进行。
    • 10. 发明授权
    • Method and apparatus providing minimal power consumption, indication of
savings and fault detection
    • 提供最小功耗的方法和装置,节省指示和故障检测
    • US5412303A
    • 1995-05-02
    • US18748
    • 1993-02-17
    • Paul F. Wernicki
    • Paul F. Wernicki
    • H02P1/24H02P25/14
    • H02P1/24H02P25/14
    • A power control circuit for induction motors wherein a servo loop is used to control power input by controlling the minimal power consumption of motor operation. The minimum power consumption is measured by sensing current or power and operating the servo loop at or near a minimally sensed power consumption level. The negative derivative of power consumption vs voltage curve, dP/dV, is sensed and a minimal value is used in a servo loop's error summing point wherein compensating slightly drives the power consumption point past the minimal power consumption point to regulate minimal power consumption by a smooth, minimal cycle. Maximum energy savings is thus attained with a smooth, stepless regulating method placing no mechanical stress on the motor-and-load combination. An indicator of power savings and normal operation is inherent in this type of control system which provides for a device for both indicating the level of savings and alerting of system faults. A circuit timer may be included to provide intermittent operation of refrigeration/air conditioning units to provide additional energy savings for these systems.
    • 一种用于感应电动机的功率控制电路,其中通过控制电动机操作的最小功耗,使用伺服回路来控制功率输入。 通过感测电流或功率来测量最小功耗,并在最低感测功耗级别或附近操作伺服环路。 感测到功耗与电压曲线的负导数dP / dV,并且在伺服回路的误差求和点中使用最小值,其中补偿稍微驱动超过最小功率消耗点的功率消耗点,以调节最小功耗 平稳,最小周期。 因此,通过平稳,无级调节方法实现最大的节能,在电机和负载组合上不施加机械应力。 这种类型的控制系统固有的功率节省和正常运行的指标是提供用于指示节省水平和系统故障报警的设备。 可以包括电路定时器以提供制冷/空调单元的间歇操作,以为这些系统提供额外的能量节省。