Grounding device for electric machine and methods of assembling the same
    571.
    发明授权
    Grounding device for electric machine and methods of assembling the same 有权
    电机接地装置及其组装方法

    公开(公告)号:US09160216B2

    公开(公告)日:2015-10-13

    申请号:US13826927

    申请日:2013-03-14

    CPC classification number: H02K11/0089 H02K11/046 H02K11/40

    Abstract: In one aspect, a grounding device for an electric machine having a rotatable shaft is provided. The grounding device includes a wire core having a first end and a second end, and a plurality of conductive fibers coupled to the wire core and extending therefrom. The wire core is configured to couple to the electric machine with at least a portion of the plurality of conductive fibers contacting the shaft such that an electrostatic charge on the shaft is directed through the grounding device to ground.

    Abstract translation: 一方面,提供一种具有旋转轴的电机的接地装置。 接地装置包括具有第一端和第二端的线芯,以及耦合到线芯并从其延伸的多个导电纤维。 线芯被配置为耦合到电机,其中多个导电纤维的至少一部分接触轴,使得轴上的静电电荷被引导通过接地装置接地。

    AXIAL FLUX ELECTRIC MACHINE INCLUDING AN INTEGRAL BRAKE AND METHODS OF ASSEMBLING THE SAME
    572.
    发明申请
    AXIAL FLUX ELECTRIC MACHINE INCLUDING AN INTEGRAL BRAKE AND METHODS OF ASSEMBLING THE SAME 有权
    包括整体制动器的轴流通电机及其组装方法

    公开(公告)号:US20150270760A1

    公开(公告)日:2015-09-24

    申请号:US14222095

    申请日:2014-03-21

    Abstract: An axial flux electric machine has a rotatable shaft, a fixed stator core comprising a ferromagnetic material and defining an axis of rotation, and a rotor assembly comprising a plurality of permanent magnets. The rotor assembly is rotatable about the axis of rotation. An axial air gap is defined between the stator core and the rotor assembly. The rotor assembly is axially displaceable towards and away from the stator core. The rotor assembly has a first position wherein the axial gap is a predetermined width greater than zero, and a second position wherein the axial gap is zero, such that the rotor assembly and the stator core contact each other.

    Abstract translation: 轴向通量电机具有可旋转的轴,固定的定子铁芯,包括铁磁材料并限定旋转轴线;以及转子组件,其包括多个永磁体。 转子组件可围绕旋转轴线旋转。 在定子芯和转子组件之间限定轴向气隙。 转子组件可朝向和远离定子芯轴向移动。 转子组件具有第一位置,其中轴向间隙是大于零的预定宽度,以及第二位置,其中轴向间隙为零,使得转子组件和定子铁芯彼此接触。

    Radially embedded permanent magnet rotor and methods thereof
    573.
    发明授权
    Radially embedded permanent magnet rotor and methods thereof 有权
    径向嵌入永磁转子及其方法

    公开(公告)号:US09099905B2

    公开(公告)日:2015-08-04

    申请号:US13652127

    申请日:2012-10-15

    Abstract: In one embodiment, a permanent magnet rotor for use with a stator is provided. The permanent magnet rotor includes at least one permanent magnet and a substantially cylindrical rotor core including an outer edge, a hub having an inner edge defining a central opening, and a plurality of independent pole pieces spaced from the hub radially about the central opening. The rotor core further includes at least one radial aperture extending radially from the outer edge through the rotor core between adjacent independent pole pieces, the at least one aperture configured to receive the at least one permanent magnet.

    Abstract translation: 在一个实施例中,提供了一种与定子一起使用的永磁转子。 永磁转子包括至少一个永磁体和包括外边缘的基本上圆柱形的转子芯,具有限定中心开口的内边缘的毂,以及围绕中心开口沿径向间隔开的多个独立的极片。 所述转子芯还包括至少一个径向孔,所述至少一个径向孔从所述外边缘径向延伸穿过所述转子芯在相邻的独立极片之间,所述至少一个孔构造成容纳所述至少一个永磁体。

    Draft Inducer for Low Power Multistage Furnaces Utilizing an Electronically Commutated Motor System and an Associated Method of Use
    574.
    发明申请
    Draft Inducer for Low Power Multistage Furnaces Utilizing an Electronically Commutated Motor System and an Associated Method of Use 有权
    采用电子换向电动机系统的低功率多级炉采用诱导器及相关使用方法

    公开(公告)号:US20150104340A1

    公开(公告)日:2015-04-16

    申请号:US14577381

    申请日:2014-12-19

    Abstract: A furnace assembly comprising a non-condensing furnace with a draft inducer. The draft inducer includes a permanent magnet electrically commutated motor and a draft inducer blower fan. The motor includes a stator, a rotor, a motor cooling fan, and a controller. The rotor being rotatable relative to the stator, the fan being operatively coupled to the rotor such that rotation of the rotor causes rotation of the fan, the controller being configured to selectively operate the motor in first and second different torque ranges of the rotor, with the first and second torque range operating within a fixed percentage and within a fixed percentage of each other. The controller being configured such during normal operation, the motor is not operable at any torques between the first torque range and the second torque range except during transitionary periods.

    Abstract translation: 一种炉组件,其包括具有牵引导流器的非冷凝炉。 牵引机包括永磁电动换向马达和牵引引风机风机。 电动机包括定子,转子,电动机冷却风扇和控制器。 所述转子可相对于所述定子旋转,所述风扇可操作地联接到所述转子,使得所述转子的旋转引起所述风扇的旋转,所述控制器构造成在所述转子的第一和第二不同转矩范围内选择性地操作所述电动机, 第一和第二扭矩范围在固定百分比内操作并且在彼此的固定百分比内。 控制器在正常操作期间被配置,除了在过渡期间外,电动机不能在第一转矩范围和第二转矩范围之间的任何转矩下操作。

    METHODS AND SYSTEMS FOR REDUCING CONDUCTED ELECTROMAGNETIC INTERFERENCE
    575.
    发明申请
    METHODS AND SYSTEMS FOR REDUCING CONDUCTED ELECTROMAGNETIC INTERFERENCE 有权
    减少导电电磁干扰的方法和系统

    公开(公告)号:US20150084562A1

    公开(公告)日:2015-03-26

    申请号:US14559378

    申请日:2014-12-03

    Abstract: A drive circuit is provided for reducing conducted electromagnetic interference provided by a power line to a motor controller. The drive circuit includes an EMI filter having first and second EMI filter input terminals, and first and second EMI filter output terminals. The first input terminal is configured to be coupled to a first AC line output and the second input terminal is configured to be coupled to a second AC line output. The drive circuit includes a rectifier portion having first and rectifier input terminals coupled to the first and second EMI output terminals, respectively. The drive circuit includes at least two series-coupled filter capacitors after the rectifier portion and a PFC choke coupled at a first end to one of the EMI filter output terminals and to one of the first and second rectifier input terminals, and at a second end between the series-coupled filter capacitors.

    Abstract translation: 提供驱动电路,用于将由电力线提供的传导电磁干扰降低到电动机控制器。 驱动电路包括具有第一和第二EMI滤波器输入端子以及第一和第二EMI滤波器输出端子的EMI滤波器。 第一输入端子被配置为耦合到第一AC线路输出,并且第二输入端子被配置为耦合到第二AC线路输出。 驱动电路包括整流部分,其具有分别耦合到第一和第二EMI输出端的第一和整流器输入端。 驱动电路包括在整流器部分之后的至少两个串联耦合的滤波电容器,以及在第一端处耦合到EMI滤波器输出端子之一以及第一和第二整流器输入端子之一的PFC扼流圈,并且在第二端 串联耦合滤波电容之间。

    PHASE CURRENT DETECTION SYSTEM
    576.
    发明申请
    PHASE CURRENT DETECTION SYSTEM 有权
    相电流检测系统

    公开(公告)号:US20150084560A1

    公开(公告)日:2015-03-26

    申请号:US14035465

    申请日:2013-09-24

    Inventor: Vijay K. Earanky

    CPC classification number: H02P6/18 H02P29/0241

    Abstract: A motor control system includes an inverter and a plurality of current sensors each positioned in-line between the inverter and a phase coil of the motor. Each current sensor measures the current provided to each phase coil of the motor and provides a signal indicative of each phase current to a controller. In some embodiments, the currents sensors are provided as one or more current sense integrated circuits. A protection circuit protects the current sense integrated circuit from ground bounce by coupling a diode and an opposite facing Zener diode in series between the power supply pin and the ground pin of the integrated circuit.

    Abstract translation: 电动机控制系统包括逆变器和多个电流传感器,每个电流传感器各自位于逆变器和电动机的相线圈之间。 每个电流传感器测量提供给电动机的每个相线圈的电流,并向控制器提供指示各相电流的信号。 在一些实施例中,电流传感器被提供为一个或多个电流感测集成电路。 保护电路通过在电源引脚和集成电路的接地引脚之间串联耦合二极管和相对的齐纳二极管来保护电流感测集成电路免受接地反弹。

    METHODS AND SYSTEMS FOR CONTROLLING A MOTOR
    578.
    发明申请
    METHODS AND SYSTEMS FOR CONTROLLING A MOTOR 审中-公开
    控制电机的方法和系统

    公开(公告)号:US20150054442A1

    公开(公告)日:2015-02-26

    申请号:US14532782

    申请日:2014-11-04

    CPC classification number: H02P6/28 H02K11/33 H02P6/182 H02P25/188 H02P2207/05

    Abstract: A control system for a motor includes an inverter coupled to the motor. The control system further includes a microcontroller coupled to the inverter. The microcontroller includes a processor programmed to measure an input voltage and acquire a back EMF voltage of the motor. The processor is also programmed to control the inverter to regulate the motor voltage based on the input voltage and the back EMF voltage to facilitate controlling the motor.

    Abstract translation: 用于电动机的控制系统包括耦合到电动机的逆变器。 控制系统还包括耦合到逆变器的微控制器。 微控制器包括被编程为测量输入电压并获取电动机的反电动势电压的处理器。 处理器也被编程为控制逆变器基于输入电压和反电动势电压来调节电动机电压,以便于控制电动机。

    Drive circuits and systems for motor controller protection
    579.
    发明授权
    Drive circuits and systems for motor controller protection 有权
    用于电机控制器保护的驱动电路和系统

    公开(公告)号:US08963478B2

    公开(公告)日:2015-02-24

    申请号:US13660026

    申请日:2012-10-25

    CPC classification number: H02H7/09 H02H3/20 H02H9/005

    Abstract: Protection of a motor controller from a transient voltage and/or an over-voltage condition is described. A drive circuit includes a rectifier portion and at least one inductive device coupled to the rectifier portion. The drive circuit further includes at least one voltage clamping device coupled in parallel with the at least one inductive device, and at least one switching device configured to open as a function of a direct current (DC) link voltage value.

    Abstract translation: 描述了电动机控制器对瞬态电压和/或过电压状态的保护。 驱动电路包括整流器部分和耦合到整流器部分的至少一个感应器件。 所述驱动电路还包括与所述至少一个感应装置并联耦合的至少一个电压钳位装置,以及配置成根据直流(DC)链路电压值打开的至少一个开关装置。

    INTERLEAVED TWO-STAGE POWER FACTOR CORRECTION SYSTEM
    580.
    发明申请
    INTERLEAVED TWO-STAGE POWER FACTOR CORRECTION SYSTEM 有权
    独立的两级功率因数校正系统

    公开(公告)号:US20150023077A1

    公开(公告)日:2015-01-22

    申请号:US13947669

    申请日:2013-07-22

    Inventor: Vijay K. Earanky

    Abstract: Methods and systems are described for providing power factor correction for high-power loads using two interleaved power factor correction stages. Each power factor correction stage includes a controllable switch that is operated to control the phasing of each power factor correction stage. The phasing of output current from the second power factor correction stage is shifted 180 degree relative to the output current from the first power factor correction stage.

    Abstract translation: 描述了用于使用两个交错的功率因数校正级为大功率负载提供功率因数校正的方法和系统。 每个功率因数校正级包括可控开关,其被操作以控制每个功率因数校正级的定相。 来自第二功率因数校正级的输出电流的相位相对于来自第一功率因数校正级的输出电流偏移180度。

Patent Agency Ranking