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12 条记录 (耗时 0.022 秒)

    Capacitively powered motor and constant speed control therefor
    2.
    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

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

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

    IPC分类号： H02P6/08 ,  H01R39/46

    CPC分类号： H02P6/08

    摘要： 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.

    摘要翻译： 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。

    Electronic control with heat sink
    3.
    发明授权
    Electronic control with heat sink 失效
    电子控制带散热片

    公开(公告)号：US5777844A

    公开(公告)日：1998-07-07

    申请号：US705605

    申请日：1996-08-30

    申请人： James R. Kiefer

    发明人： James R. Kiefer

    IPC分类号： H05K7/14 ,  H05K7/20

    CPC分类号： H05K7/20854 ,  H05K7/142

    摘要： An electronic control has a heat sink which is electrically isolated from electrical components mounted on a printed circuit board of the control by the printed circuit board itself. Thus, the use of additional materials which are thermally conductive but electrically insulating is avoided. A distributor sheet on the printed circuit board distributes heat substantially uniformly over its surface where contacted by the heat sink to promote heat transfer. The heat sink is shaped to permit devices to be mounted on the same side of the printed circuit board as the heat sink while avoiding contact with the heat sink.

    摘要翻译： 电子控制器具有散热器，其与通过印刷电路板本身安装在控制的印刷电路板上的电气部件电隔离。 因此，避免使用导热但电绝缘的附加材料。 印刷电路板上的分布片在其与散热器接触的表面上基本均匀地分布热量以促进热传递。 散热片成形为允许装置安装在印刷电路板的与散热器同一侧上，同时避免与散热器接触。

    Stall protection circuit for an electronically commutated motor
    5.
    发明授权
    Stall protection circuit for an electronically commutated motor 失效
    电子换向电机失速保护电路

    公开(公告)号：US5017846A

    公开(公告)日：1991-05-21

    申请号：US505163

    申请日：1990-04-05

    申请人： Glen C. Young ,  James R. Kiefer

    发明人： Glen C. Young ,  James R. Kiefer

    IPC分类号： H02P6/12 ,  H02H3/05 ,  H02H7/08 ,  H02H7/093

    CPC分类号： H02H3/05 ,  H02H7/093

    摘要： A control circuit for a system including an electronically commutated motor. A tachometer pulse signal generator generates a signal representative of the rotational speed of the rotatable assembly of the motor and having a duty cycle. The control circuit includes first and second motor voltage inhibiting circuits. The first inhibiting circuit inhibits application of the motor voltage to the winding stages of the motor in response to the tachometer pulse signal when the motor speed is below the preset minimum speed. The second inhibiting circuit inhibits application of the motor voltage to the winding stages in response to the tachometer pulse signal when the duty cycle of the tachometer pulse signal is outside a preselected acceptable range. Application of the motor voltage to the winding stages is inhibited when the motor is stalling as indicated by the motor speed being below the preset minimum speed or as indicated by the duty cycle of the tachometer pulse signal being outside the preselected acceptable range.

    Constant speed control for a motor
    8.
    发明授权
    Constant speed control for a motor 失效
    电机恒速控制

    公开(公告)号：US5847524A

    公开(公告)日：1998-12-08

    申请号：US821247

    申请日：1997-03-20

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

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

    IPC分类号： H02P6/08 ,  A01R39/46

    CPC分类号： H02P6/08

    摘要： A 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 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.

    摘要翻译： 一种电动机，其具有适于连接在电源和其绕组之间的功率开关电路，用于选择性地给绕组供电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，并且整流电路控制功率开关电路以整流角度换向功率开关电路，以实现旋转组件的期望的转速。 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。

    Electronically commutated motor for driving a compressor
    9.
    发明授权
    Electronically commutated motor for driving a compressor 失效
    用于驱动压缩机的电子换向马达

    公开(公告)号：US5491978A

    公开(公告)日：1996-02-20

    申请号：US388720

    申请日：1995-02-14

    申请人： Glen C. Young ,  James R. Kiefer

    发明人： Glen C. Young ,  James R. Kiefer

    IPC分类号： H02H7/08 ,  H02P6/00 ,  F25B49/02 ,  H02H7/00

    CPC分类号： H02P6/15 ,  H02P6/08 ,  H02P6/182 ,  H02H7/0838

    摘要： A system which drives a compressor of a refrigeration system at one or more speeds. The system includes a motor having a stationary assembly and a rotatable assembly. The stationary assembly includes windings adapted to be commutated in at least one preselected sequence. The rotatable assembly is in magnetic coupling relation to the stationary assembly and in driving relation to the compressor. The motor drives the compressor at a desired speed corresponding to a speed select signal representative of one of the speeds. The system further includes an application specific integrated circuit (ASIC) connected to the motor. The ASIC receives the speed select signal and is responsive to it for generating a commutation reference signal. The commutation reference signal in combination with the commutation signal generates a peak current demand signal and thereby cause the motor to operate at the desired speed. The ASIC includes a fault detector for detecting overcurrent, underspeed and/or undervoltage conditions of the motor and a protective circuit for disabling the motor when at least one of the conditions is detected. An inhibitor circuit prevents disablement of the motor during a period of time immediately following starting of the motor and a reset circuit resets the detector after another period of time to permit enablement of the motor after disablement thereof. The ASIC further includes a timer for timing the periods of time.

    摘要翻译： 一种以一个或多个速度驱动制冷系统的压缩机的系统。 该系统包括具有静止组件和可旋转组件的马达。 固定组件包括适于以至少一个预选序列换向的绕组。 可旋转组件与静止组件处于磁耦合关系并且与压缩机的驱动关系。 马达以对应于代表速度之一的速度选择信号所需的速度驱动压缩机。 该系统还包括连接到电动机的专用集成电路（ASIC）。 ASIC接收速度选择信号并且响应于该速度选择信号以产生换向参考信号。 换向参考信号与换向信号相结合产生峰值电流需求信号，从而使电动机以期望的速度运行。 ASIC包括用于检测电动机的过电流，欠速和/或欠电压状况的故障检测器以及当检测到至少一个条件时禁止电动机的保护电路。 抑制器电路防止在电动机起动之后的一段时间内马达失灵，并且复位电路在另一时间段之后复位检测器，以允许电机在其被禁用之后启用。 ASIC还包括用于对时间段进行定时的定时器。

    Electronically commutated motor for driving a compressor
    10.
    发明授权
    Electronically commutated motor for driving a compressor 失效
    用于驱动压缩机的电子换向马达

    公开(公告)号：US5423192A

    公开(公告)日：1995-06-13

    申请号：US108328

    申请日：1993-08-18

    申请人： Glen C. Young ,  James R. Kiefer

    发明人： Glen C. Young ,  James R. Kiefer

    IPC分类号： H02H7/08 ,  H02P6/00 ,  F25B49/02

    CPC分类号： H02P6/15 ,  H02P6/08 ,  H02P6/182 ,  H02H7/0838

    摘要： A system which drives a compressor of a refrigeration system at one or more preset speeds. The system includes a motor having a stationary assembly and a rotatable assembly. The stationary assembly includes windings adapted to be commutated in at least one preselected sequence. The rotatable assembly is in magnetic coupling relation to the stationary assembly and in driving relation to the compressor. The motor drives the compressor at a desired speed corresponding to a speed select signal representative of one of the preset speeds. The system further includes an application specific integrated circuit (ASIC) connected to the motor. The ASIC receives the speed select signal and is responsive to it for generating a commutation reference signal. The commutation reference signal in combination with the commutation signal generates a peak current demand signal and thereby cause the motor to operate at the desired speed.

    摘要翻译： 一种以一个或多个预设速度驱动制冷系统的压缩机的系统。 该系统包括具有静止组件和可旋转组件的马达。 固定组件包括适于以至少一个预选序列换向的绕组。 可旋转组件与静止组件处于磁耦合关系并且与压缩机的驱动关系。 马达以对应于代表预设速度之一的速度选择信号的期望速度驱动压缩机。 该系统还包括连接到电动机的专用集成电路（ASIC）。 ASIC接收速度选择信号并且响应于该速度选择信号以产生换向参考信号。 换向参考信号与换向信号相结合产生峰值电流需求信号，从而使电动机以期望的速度运行。