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公开(公告)号：US06479957B1
公开(公告)日：2002-11-12
申请号：US09874498
申请日：2001-06-05
IPC分类号： H02K2300
CPC分类号： H02K1/278 , F25B49/022 , F25D17/06 , F25D29/00 , F25D2400/04 , H02K1/2726 , H02K3/524 , H02K5/02 , H02K5/08 , H02K5/1672 , H02K5/225 , H02K11/33 , H02K11/40 , H02K15/03 , H02K21/18 , H02K29/03 , H02K29/08 , H02K2211/03 , H02P6/08 , H02P6/12 , Y10S310/06 , Y10T29/49012 , Y10T29/53143
摘要： An energy efficient low-power integral electronically commutated fan motor and control circuit assembly mounted on a circuit board for use in refrigerators utilizing a Hall sensor to provide positional control signals for sequential energization of the windings with the Hall sensor energization being pulsed, and the motor stator windings energized only during a portion of the period, when rotational torque produced by the energization is greatest in order to reduce the power input to the assembly. Integrally molded multi-function components including the coil bobbin, ground pin, Hall sensor holder, motor bearing oil well covers, and assembly housing provide positioning, support, and securing assistance along with electrical and magnetic operative connections and positioning. A capacitively coupled bridge power supply is provided to further reduce power consumption, and the motor is protected under fault and stall conditions by a current limiting circuit and a timed retry circuit, and the rotor and stator are designed for adequate starting torque in a refrigerator. Power is supplied to the motor windings through a voltage dropping capacitor connected in series therewith.
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公开(公告)号：US06414408B1
公开(公告)日：2002-07-02
申请号：US08457701
申请日：1995-06-01
IPC分类号： H02K500
CPC分类号： H02K1/278 , F25B49/022 , F25D17/06 , F25D29/00 , F25D2400/04 , H02K1/2726 , H02K3/524 , H02K5/02 , H02K5/08 , H02K5/1672 , H02K5/225 , H02K11/33 , H02K11/40 , H02K15/03 , H02K21/18 , H02K29/03 , H02K29/08 , H02K2211/03 , H02P6/08 , H02P6/12 , Y10S310/06 , Y10T29/49012 , Y10T29/53143
摘要： An energy efficient low-power integral electronically commutated fan motor and control circuit assembly mounted on a circuit board for use in refrigerators utilizing a Hall sensor to provide positional control signals for sequential energization of the windings with the Hall sensor energization being pulsed, and the motor stator windings energized only during a portion of the period, when rotational torque produced by the energization is greatest in order to reduce the power input to the assembly. Integrally molded multi-function components including the coil bobbin, ground pin, Hall sensor holder, motor bearing oil well covers, and assembly housing provide positioning, support, and securing assistance along with electrical and magnetic operative connections and positioning. A capacitively coupled bridge power supply is provided to further reduce power consumption, and the motor is protected under fault and stall conditions by a current limiting circuit and a timed retry circuit, and the rotor and stator are designed for adequate starting torque in a refrigerator. Power is supplied to the motor windings through a voltage dropping capacitor connected in series therewith.
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公开(公告)号：US06348752B1
公开(公告)日：2002-02-19
申请号：US07863900
申请日：1992-04-06
IPC分类号： H02K106
CPC分类号： H02K1/278 , F25B49/022 , F25D17/06 , F25D29/00 , F25D2400/04 , H02K1/2726 , H02K3/524 , H02K5/02 , H02K5/08 , H02K5/1672 , H02K5/225 , H02K11/33 , H02K11/40 , H02K15/03 , H02K21/18 , H02K29/03 , H02K29/08 , H02K2211/03 , H02P6/08 , H02P6/12 , Y10S310/06 , Y10T29/49012 , Y10T29/53143
摘要： An energy efficient low-power integral electronically commutated fan motor and control circuit assembly mounted on a circuit board for use in refrigerators utilizing a Hall sensor to provide positional control signals for sequential energization of the windings with the Hall sensor energization being pulsed, and the motor stator windings energized only during a portion of the period, when rotational torque produced by the energization is greatest in order to reduce the power input to the assembly. Integrally molded multi-function components including the coil bobbin, ground pin, Hall sensor holder, motor bearing oil well covers, and assembly housing provide positioning, support, and securing assistance along with electrical and magnetic operative connections and positioning. A capacitively coupled bridge power supply is provided to further reduce power consumption, and the motor is protected under fault and stall conditions by a current limiting circuit and a timed retry circuit, and the rotor and stator are designed for adequate starting torque in a refrigerator. Power is supplied to the motor windings through a voltage dropping capacitor connected in series therewith.
摘要翻译： 一种高能效的低功率整体电子换向风扇电动机和控制电路组件，其安装在电路板上，用于使用霍尔传感器的电冰箱中，以提供位置控制信号，以使霍尔传感器通电脉冲激励绕组的连续通电，电动机 定子绕组仅在该周期的一部分期间通电，当由通电产生的旋转扭矩最大时才能减小输入到组件的功率。 整体模制的多功能部件包括线圈架，接地销，霍尔传感器支架，电机轴承油井盖和组件外壳，提供定位，支撑和固定辅助以及电气和磁性操作连接和定位。 提供电容耦合的桥式电源，以进一步降低功耗，并通过限流电路和定时重试电路在故障和失速状态下保护电机，并将转子和定子设计成在冰箱中具有足够的启动转矩。 通过与其串联连接的降压电容器向电动机绕组供电。
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公开(公告)号：US06271638B1
公开(公告)日：2001-08-07
申请号：US08769610
申请日：1996-12-18
IPC分类号： H02P500
CPC分类号： H02K1/278 , F25B49/022 , F25D17/06 , F25D29/00 , F25D2400/04 , H02K1/2726 , H02K3/524 , H02K5/02 , H02K5/08 , H02K5/1672 , H02K5/225 , H02K11/33 , H02K11/40 , H02K15/03 , H02K21/18 , H02K29/03 , H02K29/08 , H02K2211/03 , H02P6/08 , H02P6/12 , Y10S310/06 , Y10T29/49012 , Y10T29/53143
摘要： An energy efficient low-power integral electronically commutated fan motor and control circuit assembly mounted on a circuit board for use in refrigerators utilizing a Hall sensor to provide positional control signals for sequential energization of the windings with the Hall sensor energization being pulsed, and the motor stator windings energized only during a portion of the period, when rotational torque produced by the energization is greatest in order to reduce the power input to the assembly. Integrally molded multi-function components including the coil bobbin, ground pin, Hall sensor holder, motor bearing oil well covers, and assembly housing provide positioning, support, and securing assistance along with electrical and magnetic operative connections and positioning. A capacitively coupled bridge power supply is provided to further reduce power consumption, and the motor is protected under fault and stall conditions by a current limiting circuit and a timed retry circuit, and the rotor and stator are designed for adequate starting torque in a refrigerator. Power is supplied to the motor windings through a voltage dropping capacitor connected in series therewith.
摘要翻译： 一种高能效的低功率整体电子换向风扇电动机和控制电路组件，其安装在电路板上，用于使用霍尔传感器的电冰箱中，以提供位置控制信号，以使霍尔传感器通电被脉冲的顺序激励绕组，电动机 定子绕组仅在该周期的一部分期间通电，当由通电产生的旋转扭矩最大时才能减小输入到组件的功率。 整体模制的多功能部件包括线圈架，接地销，霍尔传感器支架，电机轴承油井盖和组件外壳，提供定位，支撑和固定辅助以及电气和磁性操作连接和定位。 提供电容耦合的桥式电源，以进一步降低功耗，并通过限流电路和定时重试电路在故障和失速状态下保护电机，并将转子和定子设计成在冰箱中具有足够的启动转矩。 通过与其串联连接的降压电容器向电动机绕组供电。
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公开(公告)号：US06239532B1
公开(公告)日：2001-05-29
申请号：US09401238
申请日：1999-09-23
申请人： Robert K. Hollenbeck , David M. Erdman , Dennis P. Bobay , James E. Grimm , Harold B. Harms , David T. Molnar
发明人： Robert K. Hollenbeck , David M. Erdman , Dennis P. Bobay , James E. Grimm , Harold B. Harms , David T. Molnar
IPC分类号： H02K112
CPC分类号： H02K29/08 , H02K1/145 , H02K5/1675 , H02K21/227 , H02K2201/06 , H02K2201/12
摘要： An inside out motor includes a rotor including a concave member, a shaft defining a longitudinal axis mounted on the concave member and a magnet mounted on an interior surface of the concave member. A bearing receives the shaft for rotatably mounting the rotor. A stator assembly is mounted on said bearing and includes a bobbin mounted generally coaxially with the rotor shaft and having an interior diameter, an exterior diameter, a first axial end and a second axial end. A winding is wound on the bobbin and extends around the axis of the rotor shaft. The winding has a width in a direction parallel to the lengthwise extension of the rotor shaft. Plural separate ferromagnetic members are on each of the first and second axial ends of the bobbin. Each ferromagnetic member has a radially outer leg extending generally between the winding and the magnet. The outer legs of the ferromagnetic members on the first axial end of the bobbin extend generally from the first axial end of the bobbin toward the second axial end and the outer legs of the ferromagnetic members on the second axial end of the bobbin extend generally from the second axial end toward the first axial end. The ferromagnetic members on each of the first and second axial ends are disposed in angularly spaced, non-overlying positions around the longitudinal axis with respect to the other ferromagnetic members on the same axial end.
摘要翻译： 内置马达包括转子，该转子包括凹形构件，限定安装在凹形构件上的纵向轴线的轴和安装在该凹形构件的内表面上的磁体。 轴承接收用于可转动地安装转子的轴。 定子组件安装在所述轴承上并且包括与转子轴大致同轴地安装并具有内径，外径，第一轴向端和第二轴向端的筒管。 绕组缠绕在绕线筒上并围绕转子轴的轴线延伸。 绕组在与转子轴的长度方向平行的方向上具有宽度。 在线轴的第一和第二轴向端中的多个分开的铁磁构件。 每个铁磁构件具有通常在绕组和磁体之间延伸的径向外部支脚。 筒管的第一轴向端部上的铁磁构件的外腿大体上从筒管的第一轴向端向第二轴向端部延伸，并且线轴的第二轴向端部上的铁磁构件的外腿大致从 第二轴向端朝向第一轴向端。 第一和第二轴向端部中的每一个上的铁磁构件相对于在同一轴向端部上的其它铁磁构件围绕纵向轴线成角度地间隔开的非覆盖位置设置。
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公开(公告)号：US5986379A
公开(公告)日：1999-11-16
申请号：US761728
申请日：1996-12-05
申请人： Robert K. Hollenbeck , David M. Erdman , Dennis P. Bobay , James E. Grimm , Harold B. Harms , David T. Molnar
发明人： Robert K. Hollenbeck , David M. Erdman , Dennis P. Bobay , James E. Grimm , Harold B. Harms , David T. Molnar
CPC分类号： H02K29/08 , H02K1/145 , H02K21/227 , H02K5/1675 , H02K2201/06 , H02K2201/12
摘要： A motor having an external rotor, or "inside out motor" has a split C arrangement of ferromagnetic members which function as the poles of the electromagnet in the motor. The ferromagnetic members are generally C-shaped and mounted on opposite end caps of the motor. The ferromagnetic members on the opposing end caps are angularly offset from each other. The ferromagnetic members on each end cap are also spaced apart from each other, and receive a portion of the motor windings within them. The motor is constructed for assembly using few or no separate fastening devices to secure the components together. In one embodiment, a bearing core serves as the base on which all parts are assembled.
摘要翻译： 具有外部转子或“内部输出电动机”的电动机具有用作电动机中的电磁体的极的铁磁部件的分割C布置。 铁磁构件通常为C形并且安装在电动机的相对端盖上。 相对端盖上的铁磁构件彼此成角度地偏移。 每个端盖上的铁磁构件也彼此间隔开，并且在其内容纳一部分电动机绕组。 马达构造成使用很少或没有单独的紧固装置组装，以将部件固定在一起。 在一个实施例中，轴承芯用作组装所有部件的基座。
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7.发明授权Circuit, motor, and method generating a signal representing back EMF in an energized motor winding 失效电路，电动机和方法产生表示在电动机绕组中的反电动势的信号
公开(公告)号：US5696430A
公开(公告)日：1997-12-09
申请号：US469200
申请日：1995-06-06
申请人： David M. Erdman , Eric R. Benedict
发明人： David M. Erdman , Eric R. Benedict
CPC分类号： H02P25/04 , F23N3/082 , H02K29/03 , H02P6/085 , H02P6/182 , H02P6/26 , F23N2025/04 , F23N2025/06 , F23N2033/04 , F23N5/18 , H02K2201/06 , H02P6/08
摘要： A motor includes a stationary assembly and a rotatable assembly in magnetic coupling relation thereto. The stationary assembly includes a winding, the rotation of the rotatable assembly inducing a back EMF in the winding. A power supply for supplying a voltage across the winding drives a current through the winding. A back EMF sensor connected to the winding generates a back EMF signal representative of the back EMF induced in the winding during periods of time when the voltage is being supplied across the winding. An inverter connected between the power supply and the winding commutates the winding as a function of the back EMF signal, whereby the rotatable assembly rotates. A method of operating the motor and a control circuit for the motor employ the back emf induced in the winding during periods when the voltage is being applied to the winding by the power supply.
摘要翻译： 电动机包括固定组件和与其耦合的磁耦合的可旋转组件。 固定组件包括绕组，可旋转组件的旋转引起绕组中的反电动势。 用于在绕组上提供电压的电源驱动通过绕组的电流。 连接到绕组的反电动势传感器产生表示在绕组上提供电压的时间段期间在绕组中感应的反电动势的反EMF信号。 连接在电源和绕组之间的逆变器根据反电动势信号将绕组换向，由此可旋转组件旋转。 在通过电源将电压施加到绕组的期间，操作电动机的方法和用于电动机的控制电路采用在绕组中感应的反电动势。
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8.发明授权Electrical motor with a differential phase back EMF sensing circuit for sensing rotor position 失效具有差分反相电动势检测电路的电动机用于感测转子位置
公开(公告)号：US5646491A
公开(公告)日：1997-07-08
申请号：US439580
申请日：1995-05-11
申请人： David M. Erdman , James A. Beatty
发明人： David M. Erdman , James A. Beatty
CPC分类号： H02P6/182
摘要： A motor having a differential phase back EMF sensing circuit for sensing rotor position includes a stationary assembly with at least three windings. The rotation of the rotor induces a back EMF in the windings. A control circuit energizes each of the windings with a current according to a preselected sequence. A switch network is coupled to the windings and provides two back EMF signals as a function of the back EMF induced in two of the windings when the control circuit is energizing the third winding. A signal processor is coupled to the switch network and produces a difference signal representative of a difference between the two back EMF signals. An integrator integrates the difference signal to produce an integrated difference signal. The motor includes a reference signal generator which produces a reference signal and a comparator which produces a trigger signal when the integrated difference signal exceeds the reference signal. The motor also includes a one shot which produces a position signal as a function of the trigger signal and a position counter which produces a position count signal as a function of the position signal. The control circuit energizes each of the windings according to the preselected sequence as a function of the position count signal. Other circuits and methods control the motor. The trigger signal may be generated in response to a zero crossing detector and timer.
摘要翻译： 具有用于感测转子位置的差分反相EMF感测电路的电动机包括具有至少三个绕组的固定组件。 转子的旋转引起绕组中的反电动势。 控制电路根据预先选择的顺序用电流使每个绕组通电。 当控制电路对第三绕组通电时，开关网络耦合到绕组并提供两个反向EMF信号作为在两个绕组中感应的反电动势的函数。 信号处理器耦合到开关网络并产生表示两个反电动势信号之间的差的差信号。 积分器积分差分信号以产生积分差分信号。 电动机包括产生参考信号的参考信号发生器和当积分差分信号超过参考信号时产生触发信号的比较器。 电动机还包括一次，其产生作为触发信号的函数的位置信号，以及产生作为位置信号的函数的位置计数信号的位置计数器。 控制电路根据作为位置计数信号的函数的预选顺序使每个绕组通电。 其他电路和方法控制电机。 可以响应于过零检测器和定时器产生触发信号。
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9.发明授权Control system, electronically commutated motor system, draft inducer apparatus and method 失效控制系统，电子换向电机系统，牵引机设备及方法
公开(公告)号：US5075608A
公开(公告)日：1991-12-24
申请号：US483329
申请日：1990-02-20
申请人： David M. Erdman , Mark A. Brattoli
发明人： David M. Erdman , Mark A. Brattoli
CPC分类号： F23N3/082 , F25B49/025 , G05D23/19 , H02K29/06 , H02K29/10 , H02P6/16 , H02P6/182 , F23N2033/04 , F25B2600/021
摘要： A control system and method for an electronically commutated motor having a stationary assembly with a plurality of winding stages for carrying a motor current in response to application of a voltage having a magnitude subject to variations, the motor further having a rotatable assembly. The control system is adapted to receive control pulses having a duty cycle which is a function of a desired operating torque or speed for the motor. The control system and method are responsive to the motor current for generating a pluse width modulated (PWM) series of pulses having a pulse repetition rate having a duty cycle which is a function of the duty cycle of the control pulses. The PWM series of pulses are supplied to the commutating circuit as a pulsed signal whereby the operating torque or speed of the motor is a function of the duty cycle of the control pulses and is substantially independent of variations in the magnitude of the applied voltage. The control system may be part of a draft inducer apparatus or method for use with a combustion chamber having an exhaust outlet including a fan for moving air through the exhaust outlet and thereby to induce a draft in the combustion chamber. A pressure sensor connected to the motor control apparatus may be located within the exhaust outlet.
摘要翻译： 一种用于电子换向电动机的控制系统和方法，具有具有多个绕组段的固定组件，用于响应于施加具有变化幅度的电压而承载电动机电流，所述电动机还具有可旋转组件。 控制系统适于接收具有占空比的控制脉冲，该占空比是电动机的期望的操作转矩或速度的函数。 控制系统和方法响应于电动机电流，用于产生具有占空比的脉冲重复频率的脉冲宽度调制（PWM）脉冲序列，该占空比是控制脉冲的占空比的函数。 PWM脉冲序列作为脉冲信号提供给换向电路，由此马达的运行转矩或速度是控制脉冲的占空比的函数，并且基本上与所施加的电压的幅度的变化无关。 控制系统可以是与具有排气出口的燃烧室一起使用的牵引式诱导装置或方法的一部分，所述排气出口包括用于通过排气出口移动空气的风扇，从而在燃烧室中引起通风。 连接到马达控制装置的压力传感器可以位于排气出口内。
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10.发明授权
公开(公告)号：US4998052A
公开(公告)日：1991-03-05
申请号：US386089
申请日：1989-07-28
CPC分类号： D06F37/304 , H02K19/103 , H02K29/06
摘要： A drive system for a laundry machine utilizing a switched reluctance motor of three or more phases and with stator/rotor pole ratios selected from the ratios of 6:4 and 8:6 with the actual number of poles being a multiple of 2 or more times those numbers. A stator/rotor gap of 10-20 mils is maintained in large diameter motors and cooling for the coils and electronic components positioned within the motor is provided.
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