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公开(公告)号：US5773941A
公开(公告)日：1998-06-30
申请号：US742821
申请日：1996-10-31
IPC分类号： H02P25/06 , H02K3/04 , H02K3/50 , H02K9/22 , H02K11/00 , H02K29/06 , H02K41/03 , H02P6/00 , H02P6/08 , H02P6/20 , H02P6/24 , H02P6/02 , H02K29/08
CPC分类号： H02K29/08 , H02K11/0094 , H02K11/21 , H02K11/33 , H02K29/06 , H02K41/03 , H02K9/22 , H02P6/20 , H02P6/24 , H02P6/28 , H02K3/04 , H02K3/50
摘要： A two wire, brushless, d.c. motor power control system employs a rechargeable d.c. power source (e.g. a battery or a capacitor) to provide power to the commutation position sensing electronics, and commutation logic during dynamic braking and also if desired, during motor start-up after stopping or reversing direction. Current limiting is provided by sensing the two-wire motor current and using the communicating logic to modulate the turn-off/turn-on time of the communicating switches.
摘要翻译： 双线，无刷，直流 电机功率控制系统采用可充电直流 电源（例如电池或电容器），用于向换向位置感测电子设备提供电力，以及在动态制动期间以及如果需要，在停止或反向后的电动机启动期间的换向逻辑。 通过感测两线电动机电流并使用通信逻辑来调制通信开关的关断/导通时间来提供限流。
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32.发明授权Brushless D.C. motor having a predefined minimum time lapse between successive commutation switchings 失效无刷直流电动机在连续换相切换之间具有预定的最小时间间隔
公开(公告)号：US5682088A
公开(公告)日：1997-10-28
申请号：US650206
申请日：1996-05-20
申请人： Martin Sonnek
发明人： Martin Sonnek
摘要： In a D.C. motor having a position detector for detecting predetermined rotor positions and an electronic commutation circuit for connecting the stator coils to the power supply in a predefined cyclic order (and for disconnecting them) in dependence upon detected predetermined rotor positions, the no-load speed is limited by delaying the connection of a next stator coil in response to a new detection of a next one of the predetermined rotor positions, until a predetermined delay period has elapsed after a previous detection of another rotor position that lies a predetermined distance ahead of the newly detected rotor position.
摘要翻译： 在具有用于检测预定转子位置的位置检测器的直流电动机和用于根据检测到的预定转子位置以预定的循环次序（并且用于断开它们）将定子线圈连接到电源的电子换向电路，空载 通过延迟下一个定子线圈的连接来限制下一个定子线圈的连接，以响应于对下一个预定转子位置的新检测，直到在先前检测到位于预定距离之前预定距离的另一个转子位置之前经过了预定的延迟时间 新检测的转子位置。
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33.发明授权Device for transmitting signals from position detector and method of such signal transmission 失效用于从位置检测器发送信号的装置和这种信号传输的方法
公开(公告)号：US5625353A
公开(公告)日：1997-04-29
申请号：US174044
申请日：1993-12-28
申请人： Takashi Katagiri , Tetsuo Momose
发明人： Takashi Katagiri , Tetsuo Momose
CPC分类号： H02P6/16 , G01D5/145 , G01D5/24404 , H02K29/06
摘要： A transmitting device, for transmitting position detector signals, comprises a controller for processing signals on various kinds of data from an object of interest; a position detector that has a magnetic pole detecting portion and which detects position data on the object of interest; an up-down counter that counts in an ascending or descending order on the basis of two-phase output signals that are produced from the position detector in accordance with the change in the position of the object of interest; a converting circuit portion in which both the counter value as produced from the up-down counter or the change in the counter value per unit time and a magnetic pole position detection signal as produced from the magnetic pole detecting portion are converted to a serial signal; and a transmission path for transmitting the serial signal to the controller. Furthermore, a method of transmitting position detector signals with the above-mentioned transmitting device, which comprises: converting position data on an object of interest to a serial signal within a given time; superposing the output of an absolute counter on the serial signal after the output has been converted to a serial signal, the output representing the absolute position of the object of interest; and transmitting the signals in superposition to the control unit along a single channel of transmission path.
摘要翻译： 用于发送位置检测器信号的发送装置包括：控制器，用于处理来自感兴趣对象的各种数据的信号; 位置检测器，具有磁极检测部分，并检测所述感兴趣物体上的位置数据; 基于从位置检测器根据感兴趣对象的位置的变化产生的两相输出信号，以升序或降序计数的升降计数器; 将从上下计数器产生的计数器值或每单位时间的计数器值的变化以及从磁极检测部分产生的磁极位置检测信号都转换成串行信号的转换电路部分; 以及用于将串行信号发送到控制器的传输路径。 此外，一种使用上述发送装置发送位置检测器信号的方法，包括：将感兴趣对象上的位置数据转换为给定时间内的串行信号; 在将输出转换为串行信号之后，将绝对计数器的输出叠加在串行信号上，该输出表示感兴趣对象的绝对位置; 并且沿着传输路径的单个信道将信号叠加发送到控制单元。
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公开(公告)号：US5616974A
公开(公告)日：1997-04-01
申请号：US340603
申请日：1994-11-16
申请人： Tadao Yamada
发明人： Tadao Yamada
IPC分类号： H02K29/00 , F04D25/06 , H02K5/24 , H02K7/14 , H02K11/02 , H02K21/14 , H02K29/03 , H02K29/06 , H02K1/18
CPC分类号： F04D25/066 , H02K29/03 , H02K7/14 , H02K21/14 , H02K29/06
摘要： The present invention is a fan motor for use in various types of electronic equipment, more particularly fan motors which may cool heat radiating electronic parts, in which the object is (a) to prevent noise caused by the air-cutting sound of the fan motor, (b) to allow easy alteration of the blowing direction, and (c) to eliminate damage caused by the counter electromotive force of the field magnetic coil.The fan motor of the present invention consists of (a) a rotor formed by installing permanent magnets on a vane wheel, and (b) a stator formed by installing an electromagnet and a magnetic body on the inside circumferential surface of a casing. A circumferential-edge ring is installed on the vane wheel, so that noise caused by the air-cutting sound of the fan motor is prevented. A conductive circuit is connected to the field magnetic coil of the electromagnet, and the aforementioned magnetic body can be selectively positioned in a relatively advanced angular position (P.sub.1) or a relatively retarded angular position (P.sub.2) with respect to the electromagnet. A diode (D.sub.2) which eliminates any surge voltage caused by the counter electromotive force of the field magnetic coil is installed in the conductive circuit.
摘要翻译： 本发明是用于各种类型的电子设备的风扇电动机，更具体地说，可以冷却散热电子部件的风扇电动机，其中，目的是（a）防止由风扇电动机的空气切割声音引起的噪音 ，（b）容易地改变吹出方向，（c）消除由场磁线圈的反电动势引起的损坏。 本发明的风扇电动机由（a）通过在叶轮上设置永久磁铁而形成的转子，（b）通过在壳体的内周面上安装电磁体和磁性体而形成的定子。 在叶轮上安装有周缘环，从而防止由风扇马达的空气切割声音引起的噪音。 导电电路连接到电磁体的磁场线圈，并且上述磁体可以选择性地定位在相对于电磁体的相对较高的角位置（P1）或相对延迟的角位置（P2）中。 在导电电路中安装有消除由场磁线圈的反电动势引起的浪涌电压的二极管（D2）。
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公开(公告)号：US5574591A
公开(公告)日：1996-11-12
申请号：US383929
申请日：1995-02-06
申请人： Mitsuo Suzuki , Yukio Itami , Yoshio Hashimoto , Koji Tsukahara , Yoshihiro Takahashi , Takao Abe
发明人： Mitsuo Suzuki , Yukio Itami , Yoshio Hashimoto , Koji Tsukahara , Yoshihiro Takahashi , Takao Abe
IPC分类号： F16C17/02 , F16C33/10 , G02B7/182 , G02B26/12 , H02K5/16 , H02K7/09 , H02K21/24 , H02K29/06 , G02B26/08
CPC分类号： F16C33/107 , F16C17/026 , G02B26/121 , G02B7/1821 , H02K21/24 , H02K29/06 , H02K5/1677 , H02K7/09 , Y10S359/90
摘要： A polygon scanner has a lighter rotating shaft on which a polygon mirror is mounted, to prevent a positional deviation of the polygon mirror from the rotating shaft in high speed rotation, in which the rotating shaft is supported through a dynamic pressure air bearing on a fixed shaft, in which the polygon mirror and motor constituent members are mounted on the rotating shaft, and in which the rotating shaft and the polygon mirror are made of respective light weight materials matched with each other in coefficient of thermal expansion, for example of aluminum or an aluminum alloy. Further, an anodic oxide film is formed at least on a portion where the rotating shaft could contact with the fixed shaft, and floating means is provided for constantly floating the rotating shaft relative to the fixed shaft upward in an axial direction thereof. A process for producing the polygon scanner comprises making a predetermined masking on a portion where the rotating shaft could contact with the fixed shaft, prior to an anodic oxidation treatment to form an anodic oxide film on the portion, and then performing the anodic oxidation treatment, whereby, during the treatment, forming an anodic oxide film and a pattern of recesses and protrusions for dynamic pressure generation corresponding to a pattern of the masking, which are constituent elements of a dynamic pressure air bearing.
摘要翻译： 多边形扫描器具有安装有多面镜的较轻的旋转轴，以防止多角镜从高速旋转中的旋转轴的位置偏离，其中旋转轴通过动态压力空气轴承支撑在固定的 轴，其中多面镜和电动机构成部件安装在旋转轴上，并且其中旋转轴和多面镜由相对于热膨胀系数彼此匹配的各种重量轻的材料制成，例如铝或 铝合金。 此外，至少在旋转轴可以与固定轴接触的部分上形成阳极氧化膜，并且设置有浮动装置，用于使旋转轴相对于固定轴在轴向上向上上升。 多边形扫描仪的制造方法，在阳极氧化处理之前，在旋转轴可以与固定轴接触的部分上进行规定的掩模，在该部分上形成阳极氧化膜，然后进行阳极氧化处理， 由此，在处理过程中，形成阳极氧化膜和用于动压产生的凹凸图案，其对应于作为动压空气轴承的组成元件的掩模图案。
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公开(公告)号：US5517746A
公开(公告)日：1996-05-21
申请号：US302201
申请日：1994-09-08
申请人： Karmen D. Cox , George E. Hendrix
发明人： Karmen D. Cox , George E. Hendrix
CPC分类号： B23Q5/10 , H02K29/06 , H02K7/14 , H02K11/00 , Y10T29/50 , Y10T29/5107 , Y10T408/65 , Y10T409/309352
摘要： A variable speed direct drive drill press/router is disclosed. The drill press/router includes a housing supported above a horizontal bed which contains a generally vertically extending spindle that is rotatably mounted within and partially extends below the housing. A manually engageable or motor driven driver axially moves the spindle predetermined distances toward and away from the horizontal bed. For driving the spindle, a switched reluctance motor is mounted at the upper end of the housing for rotary driving engagement at a desired range of predetermined speeds throughout the entire range of axial movement of the spindle. The lower end of the spindle is capable of interchangeably receiving a workpiece rotating tool such as a drill or router for drilling or routing a workpiece.
摘要翻译： 公开了一种变速直接驱动钻床/路由器。 钻床/路由器包括支撑在水平床上方的壳体，其包含大致垂直延伸的主轴，其可旋转地安装在壳体内部并且部分地延伸到壳体的下方。 手动接合或马达驱动的驱动器使主轴轴向地移动预定距离并且远离水平床。 为了驱动主轴，开关磁阻电动机安装在壳体的上端，用于在轴的轴向运动的整个范围内以预定速度的期望范围进行旋转驱动接合。 主轴的下端能够互换地接收工件旋转工具，例如用于钻孔或布置工件的钻头或路由器。
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公开(公告)号：US5384527A
公开(公告)日：1995-01-24
申请号：US61364
申请日：1993-05-12
摘要： A detector for detecting rotor position of a brushless generator having a motive power shaft and a main generator portion having a set of armature phase windings capable of receiving AC power and developing a back EMF voltage during operation in a starting mode, includes a circuit coupled to the set of armature phase windings and capable of responding to the AC power for producing a back EMF estimate signal representing an estimate of the back EMF voltage. The detector also includes a circuit for converting the back EMF estimate signal into an indication of the angular position of the motive power shaft.
摘要翻译： 一种用于检测具有动力轴的无刷发电机的转子位置的检测器和具有能够在起动模式下操作期间接收AC电力并且产生反电动势电压的一组电枢相绕组的主发电机部分，包括耦合到 该组电枢相绕组并且能够响应于交流电源以产生表示反电动势电压的估计的反电动势估计信号。 检测器还包括用于将反电动势估计信号转换成动力轴的角位置的指示的电路。
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公开(公告)号：US5327790A
公开(公告)日：1994-07-12
申请号：US900663
申请日：1992-06-19
CPC分类号： H02K26/00 , B25J13/085 , B25J9/12 , B25J9/1633 , G05B2219/37344 , G05B2219/37473 , H02K29/06
摘要： A reaction torque actuator has a sensor operatively coupled between a motor housing and an outer housing. A pair of bearings support the motor within the outer housing in a spaced, concentric relationship. The bearings allow a mutual angular displacement of the housing about the axis of rotation of the output shaft of the motor, but they isolate the sensor from the axial and radial moments. A resolver surrounds the shaft at its output end to produce a signal that accurately measures the angular position of the shaft. A controller regulates power to the motor windings as a function of signals from the resolver and the sensor and torque commands. In a preferred form for use in robotics where very accurate force control is desired, the motor: is a brushless D.C. motor, the sensor is of the strain gauge type, and the controller uses high quality amplifiers, sine wave commutation, cable shielding, and filtering to limit the noise generated by electronic switching.
摘要翻译： 反作用力矩致动器具有可操作地联接在马达壳体和外壳之间的传感器。 一对轴承以外部的同心关系支撑外壳内的马达。 轴承允许壳体围绕马达的输出轴的旋转轴线相互角位移，但是它们将传感器与轴向和径向力矩隔离开。 旋转变压器在其输出端围绕轴，以产生精确测量轴的角位置的信号。 控制器根据来自旋转变压器和传感器和转矩指令的信号调节电动机绕组的功率。 在用于需要非常精确的力控制的机器人技术的优选形式中，电动机：是无刷直流电动机，传感器是应变计类型，并且控制器使用高质量放大器，正弦波换向，电缆屏蔽和 过滤以限制电子切换产生的噪声。
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公开(公告)号：US5262703A
公开(公告)日：1993-11-16
申请号：US874796
申请日：1992-04-28
摘要： A low noise brushless dc motor has a rotor with a permanent magnet and a stator with a bearing system mounting a shaft for rotating the rotor. The motor has an operating circuit that includes a tachometer winding connected to the base of a first transistor whose collector is in series with a first resistor. The other end of the tachometer winding is connected to the base of a second transistor whose collector is in series with a second resistor.
摘要翻译： 低噪声无刷直流电动机具有带永磁体的转子和具有安装用于使转子旋转的轴的轴承系统的定子。 电动机具有操作电路，其包括连接到集电极与第一电阻串联的第一晶体管的基极的转速计绕组。 转速计绕组的另一端连接到集电极与第二电阻串联的第二晶体管的基极。
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公开(公告)号：US5256923A
公开(公告)日：1993-10-26
申请号：US880934
申请日：1992-05-11
摘要： A switched reluctance motor (10) provides position and speed detection without a shaft position sensor. At least one of the stator pole faces (54) and/or at least one of the rotor pole faces (60) has an irregularity such as a notch (52 and/or 58) providing a perturbation or blip (70, 82) in the inductance profile (72, 76, 84) of the motor (10) during rotation of the rotor (14) indicative of the position of the rotor (14) relative to the stator (12). The frequency of the perturbations indicates motor speed.
摘要翻译： 开关磁阻电动机（10）在没有轴位置传感器的情况下提供位置和速度检测。 定子极面（54）和/或至少一个转子极面（60）中的至少一个具有不规则性，例如凹口（52和/或58），其提供扰动或腮红（70,82） 在所述转子（14）旋转期间所述电动机（10）的电感轮廓（72,76,84）指示所述转子（14）相对于所述定子（12）的位置。 扰动的频率表示电机速度。
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