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    Integral motor and control
    4.
    发明授权
    Integral motor and control 失效
    整体电机和控制

    公开(公告)号：US06348752B1

    公开(公告)日：2002-02-19

    申请号：US07863900

    申请日：1992-04-06

    Applicant: David M. Erdman ,  Dale F. Yoder ,  Richard S. Tatman ,  David T. Molnar

    Inventor： David M. Erdman ,  Dale F. Yoder ,  Richard S. Tatman ,  David T. Molnar

    IPC: H02K106

    CPC classification number: 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

    Abstract: 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.

    Abstract translation: 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。

    Capacitively powered motor and constant speed control therefor
    5.
    发明授权
    Capacitively powered motor and constant speed control therefor 失效
    电容式电动机和恒速控制

    公开(公告)号：US5982122A

    公开(公告)日：1999-11-09

    申请号：US761748

    申请日：1996-12-05

    Applicant: Robert K. Hollenbeck ,  David M. Erdman ,  James R. Kiefer

    Inventor： Robert K. Hollenbeck ,  David M. Erdman ,  James R. Kiefer

    IPC: H02P6/08 ,  H01R39/46

    CPC classification number: H02P6/08

    Abstract: A capacitively powered motor having a power switching circuit adapted to be connected between a power source and its winding for selectively energizing the winding to generate a magnetic field which causes a rotating assembly to rotate. A position sensing circuit provides a position signal representative of the position of the rotating assembly and a commutating circuit controls the power switching circuit to commutate the power switching circuit at a commutating angle and at a substantially constant duty cycle to achieve a desired rotating speed of the rotating assembly. The commutating circuit varies the commutating angle in response to the position signal to maintain the substantially constant rotating speed of the rotating assembly. As result, the efficiency of the motor is varied to maintain the substantially constant rotating speed.

    Abstract translation: 一种具有电力供电的电动机，其具有适于连接在电源和其绕组之间的功率开关电路，用于选择性地激励绕组以产生使得旋转组件旋转的磁场。 位置检测电路提供表示旋转组件的位置的位置信号，并且换向电路控制功率开关电路以整流角度和基本上恒定的占空比对功率开关电路进行换向，以实现所需的转速 旋转组件。 整流电路响应于位置信号改变换向角度，以保持旋转组件的基本上恒定的转速。 结果，马达的效率变化以保持基本恒定的转速。

    Control circuits, electronically commutated motor systems and methods
    7.
    发明授权
    Control circuits, electronically commutated motor systems and methods 失效
    控制电路，电子换向电机系统和方法

    公开(公告)号：US5023527A

    公开(公告)日：1991-06-11

    申请号：US515317

    申请日：1990-04-18

    Applicant: David M. Erdman ,  James A. Beatty ,  Amritlal H. Patel

    Inventor： David M. Erdman ,  James A. Beatty ,  Amritlal H. Patel

    IPC: B60H1/32 ,  F23N3/08 ,  F25B49/02 ,  G05D23/19 ,  H02K29/06 ,  H02K29/10 ,  H02P6/08 ,  H02P6/14 ,  H02P6/16 ,  H02P6/18

    CPC classification number: F23N3/082 ,  F25B49/025 ,  G05D23/19 ,  H02K29/06 ,  H02K29/10 ,  H02P6/085 ,  H02P6/14 ,  H02P6/16 ,  H02P6/182 ,  F23N2033/04 ,  F25B2600/021

    Abstract: Control circuit for an electronically commutated motor which has a rotatable assembly and further has a stationary assembly with a plurality of winding stages having terminals for energization, and switches for applying a voltage to one or more of the terminals of the winding stages at a time and commutating the winding stages in a preselected sequence to rotate the rotatable assembly. A preselected sequence of winding stages are left correspondingly unpowered so that a plurality of the winding stages are unpowered at some time. The winding stages generate back emf signals and also couple electrical signals from each energized winding stage to the unpowered winding stages which signals can interfere with detection of back emf for position sensing purposes. The control circuit includes a first circuit for selecting at least two of the unpowered winding stages which have electrical signals coupled to them that have a predetermined relationship in polarity and magnitude. A second circuit produces an electrical output from the voltages on the winding stage terminals of the winding stages selected, so that the electrical signals coupled from each energized winding stage are substantially canceled when they have the predetermined relationship while the back emf is preserved for position sensing substantially free from interference from the electrical signals that are coupled from each energized winding stage to the unpowered winding stages. Other control circuits, electronically commutated motor systems and methods of control and operation are also disclosed.

    Abstract translation: 一种用于电子换向电动机的控制电路，其具有可旋转的组件，并且还具有具有多个具有用于通电的端子的绕组的静止组件，以及用于一次向一个或多个绕组的端子施加电压的开关，以及 以预选顺序对绕组段进行换向以旋转可旋转组件。 卷绕级的预选序列相应地没有动力，使得多个绕组段在某些时间没有动力。 绕组级产生反电动势信号，并且将来自每个带电绕组级的电信号耦合到无动力绕组级，这些信号可能干扰用于位置感测目的的反电动势的检测。 控制电路包括用于选择具有与其相连的电信号的至少两个未供电的绕组级的第一电路，其具有极性和大小的预定关系。 第二电路从所选择的绕组级的绕组级端子上的电压产生电输出，使得当它们具有预定关系时，从每个通电的绕组段耦合的电信号被基本上消除，同时保留用于位置感测的后电动势 基本上不受来自从每个带电绕组段耦合到无动力绕组级的电信号的干扰。 还公开了其他控制电路，电子换向电机系统以及控制和操作方法。

    Laundering apparatus, method of operating a laundry machine, control system for an electronically commutated motor, and method of operating an electronically commutated motor
    8.
    发明授权
    Laundering apparatus, method of operating a laundry machine, control system for an electronically commutated motor, and method of operating an electronically commutated motor 失效
    洗衣机，洗衣机的操作方法，电子换向电动机的控制系统以及电子换向电动机的操作方法

    公开(公告)号：US4513230A

    公开(公告)日：1985-04-23

    申请号：US400206

    申请日：1982-07-21

    Applicant: David M. Erdman

    Inventor： David M. Erdman

    IPC: H02P6/08 ,  H02P1/18

    CPC classification number: H02P6/085 ,  F25B2600/021

    Abstract: A laundering apparatus includes a laundry machine having a spin tub and an agitator, and an electronically commutated motor is drivingly associated with the tub and agitator through a transmission. A system controls the energization of the electronically commutated motor to effect the laundering operations of the tub and the agitator in the laundry machine.A method of operating a laundry machine, a control system for an electronically commutated motor, and a method of operating an electronically commutated motor are also disclosed.

    Abstract translation: 洗衣设备包括具有旋转桶和搅拌器的洗衣机，并且电子换向电动机通过变速器与桶和搅拌器驱动相关联。 系统控制电子换向马达的通电，以实现洗衣机中的洗涤桶和搅拌器的洗涤操作。 还公开了一种操作洗衣机的方法，用于电子换向电动机的控制系统以及操作电子换向电动机的方法。

    Refrigeration system and control therefor
    9.
    发明授权
    Refrigeration system and control therefor 失效
    制冷系统及其控制

    公开(公告)号：US4015182A

    公开(公告)日：1977-03-29

    申请号：US482407

    申请日：1974-06-24

    Applicant: David M. Erdman

    Inventor： David M. Erdman

    IPC: B60H1/32 ,  F23N3/08 ,  F25B49/02 ,  G05D23/19 ,  H02K29/00

    CPC classification number: F23N3/082 ,  F25B49/025 ,  G05D23/19 ,  F23N2033/04 ,  F25B2600/021 ,  Y10S388/934

    Abstract: A refrigeration system is disclosed as comprising a compressor driven by an electronically commutated D.C. motor for circulating a suitable coolant through a condenser and then an evaporator disposed within a chamber or compartment to be cooled. The system is particularly adapted for use as an air conditioning system for automobiles and recreational vehicles, as portable refrigerating apparatus in recreational vehicles, and refrigerating apparatus for trucks or other transport vehicles. In such applications, a power source such as a battery, alternator, or generator (or rectified alternating current) serves to energize the motor. The motor may be operated by an electronic commutating circuit responsive to the position of the rotor of the D.C. motor for efficiently commutating the energizing signals applied to the stator windings of the brushless D.C. motor. The level of energization is set in accordance with the desired temperature to be maintained by the refrigeration system, whereby the D.C. motor is energized to drive the compressor at a selected speed corresponding to the desired temperature. The degree of stator energization may be controlled by: 1) regulating the output of the power source, or 2) regulating directly the commutating circuit to control the current signals applied to the stator windings.

    Abstract translation: 公开了一种制冷系统，其包括由电子换向直流电动机驱动的压缩机，用于使合适的冷却剂循环通过冷凝器，然后设置在要冷却的室或室内的蒸发器。 该系统特别适合用作汽车和休闲车辆的空调系统，作为娱乐车辆中的便携式制冷设备，以及用于卡车或其他运输车辆的冷藏设备。 在这种应用中，诸如电池，交流发电机或发电机（或整流交流电）的电源用于对电动机通电。 响应于直流电动机的转子的位置，可以通过电子换向电路来操作电动机，以有效地换向施加到无刷直流电动机的定子绕组的激励信号。 根据由制冷系统保持的期望温度来设定通电水平，由此直流电动机通电，以对应于期望温度的选定速度驱动压缩机。 定子通电的程度可以通过以下方式来控制：1）调节电源的输出，或2）直接调节整流电路，以控制施加到定子绕组的电流信号。

    Electronically commutated motor and method of making same
    10.
    发明授权
    Electronically commutated motor and method of making same 失效
    电动换向电机及其制作方法

    公开(公告)号：US4005347A

    公开(公告)日：1977-01-25

    申请号：US482409

    申请日：1974-06-24

    Applicant: David M. Erdman

    Inventor： David M. Erdman

    IPC: F23N3/08 ,  H02K29/10 ,  H02P6/16 ,  H02K29/00

    CPC classification number: F23N3/082 ,  H02K29/10 ,  H02P6/16 ,  F23N2033/04 ,  F25B2600/021 ,  H02P2209/07

    Abstract: A brushless DC motor is constructed with photosensitive devices for detecting rotor shaft position. Arcuate permanent magnets on the rotor provide a DC flux field while distributed stator windings, each spanning a fixed number of slots in the armature assembly, provide mutually perpendicular magnetic fields. A logic circuit comprising NOR gates and transistor switches and drivers activated in response to signals from the shaft position sensors are utilized to control current switching in the stator windings of the motor. A light interrupting shutter mounted to the rotor cooperates with the light sensitive devices which are mounted to a supporting bracket fixed to the stator assembly in a manner to selectively preset advancement of commutation of the stator windings.

    Abstract translation: 无刷直流电动机由感光装置构成，用于检测转子轴的位置。 转子上的弧形永磁体提供DC通量磁场，而分布式定子绕组（每个跨接在电枢组件中的固定数量的槽）提供相互垂直的磁场。 包括NOR门和晶体管开关的逻辑电路和响应于来自轴位置传感器的信号而激活的驱动器被用于控制电动机的定子绕组中的电流切换。 安装到转子上的遮光快门与被安装到固定到定子组件的支撑支架的光敏装置协作，以便选择性地预设定子绕组的换向。

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