-
公开(公告)号：US3815004A
公开(公告)日：1974-06-04
申请号：US36757873
申请日：1973-06-06
Applicant: HYPER LOOP
Inventor： SOMMERIA M
Abstract: A rotary motor has an armature with a single continuous winding and a pair of spaced-apart windingless pole pieces surrounding said armature and formed of ferromagnetic material. The armature employs a ferromagnetic member having a plurality of slots arranged in parallel spaced-apart relation encircling the periphery of the armature, each slot containing a pair of conductors forming separate portions of said armature winding. A commutator is mounted for rotation with the armature, and is adapted to interconnect portions of the winding with two independent electrical power sources through four spaced brushes. The independent power sources each include a plurality of rectifiers for rectifying a multiphase source of a.c. power.
Abstract translation: 旋转电动机具有带有单个连续绕组的电枢和围绕所述电枢并由铁磁材料形成的一对间隔开的无绕组磁极片。 电枢采用铁磁构件，其具有围绕电枢的周边平行间隔设置的多个槽，每个槽包含形成所述电枢绕组的分离部分的一对导体。 安装换向器与电枢一起旋转，并且适于通过四个间隔开的电刷将两个独立电源的绕组部分互连。 独立电源各自包括多个整流器，用于整流交流的多相源。 功率。
-
公开(公告)号：US3515972A
公开(公告)日：1970-06-02
申请号：US3515972D
申请日：1968-04-22
Applicant: EASTMAN KODAK CO
Inventor： HURST JAMES E
CPC classification number: H02P7/063 , H01H35/10 , Y10S388/925
-
公开(公告)号：US3619751A
公开(公告)日：1971-11-09
申请号：US3619751D
申请日：1969-09-22
Applicant: MATSUSHITA ELECTRIC IND CO LTD
Inventor： SASABE KAORU , ODA FUJIO
CPC classification number: H02P7/063 , Y10S388/926 , Y10S388/927 , Y10S388/929
Abstract: An apparatus for controlling the speed of an electric motor, wherein use is made of an element sensitive to a pressure, the electrical resistance of said element or a voltage developed thereacross being varied in accordance with the pressure imparted thereto, and a centrifugal force produced by a rotary member is imparted to said sensitive element so that the speed of said electric motor is controlled in accordance with variations in the electrical resistance of said sensitive element.
Abstract translation: 一种用于控制电动机速度的装置，其中使用的是对压力敏感的元件，所述元件的电阻或其上产生的电压根据施加的压力而变化，并且由 旋转构件被施加到所述敏感元件，使得根据所述敏感元件的电阻的变化来控制所述电动机的速度。
-
4.发明授权
公开(公告)号：US3568026A
公开(公告)日：1971-03-02
申请号：US3568026D
申请日：1968-04-29
Applicant: BRAUN AG
Inventor： ANNA OTTO
CPC classification number: H02P4/00
Abstract: A control arrangement for adapting the operation of a DC motor, of the instrument type, to a voltage source which may have different supply levels over a substantially broad range. When control and adaptation circuitry is in electronic form, a switching transistor is connected in series with the motor and the power supply for operating the same. An RC network is connected across the motor terminals. A Zener diode is connected in series with a resistor, and the series circuit is, in turn, connected in parallel with the capacitor of the RC network. The base of a transistor amplifier is connected to the junction between the Zener diode and the resistor connected thereto, and the amplified voltage from the transistor amplifier is applied to the switching transistor. As a result, the switching transistor is turned on or off as a function of the voltage applied to the motor. In a mechanical design embodiment, a mechanical switching arrangement is connected in series and between the motor and the voltage supply. A speed governor is mechanically coupled to the motor and actuates the switch so that the motor will be intermittently connected to the voltage supply depending upon the speed of the motor. The arrangement is such that the power supplied to the motor is maintained at the rated design value of the motor.
-
公开(公告)号：US4286254A
公开(公告)日：1981-08-25
申请号：US100503
申请日：1979-12-05
Applicant: Earl W. Gosswiller
Inventor： Earl W. Gosswiller
CPC classification number: B60Q1/2611
Abstract: A rotating signal light for use on police cars, ambulances and other vehicles on which a warning light is required, the light being connected with a variable voltage lamp circuit which provides a higher voltage in predetermined rotational positions of the lamp to produce enhanced light in certain directions while providing a lower voltage in other positions of the light to increase lamp life and reduce wattage requirements.
Abstract translation: 用于警车，救护车和需要警告灯的其他车辆的旋转信号灯，该灯与可变电压灯电路连接，该可变电压灯电路在灯的预定旋转位置提供更高的电压以产生特定的增强的光 同时在光的其他位置提供较低的电压以增加灯的寿命并降低功率要求。
-
Patent Agency Ranking
公开(公告)号：US4227128A
公开(公告)日：1980-10-07
申请号：US915977
申请日：1978-06-16
Applicant: James B. Cockroft , Peter J. Ernster
Inventor： James B. Cockroft , Peter J. Ernster
CPC classification number: H02P25/10 , Y10S388/926
Abstract: A motor control circuit is provided for an appliance or the like of the type utilizing a speed adjustment device that controls an adjustable centrifugally controlled governor device. The governor includes a switch contact arrangement which is connected in the triggering circuit of a power switching device, a TRIAC for example, for selectively connecting the motor of the appliance to the power source connections. The switch contacts of the governor device open and close as the rotational speed of the motor increases and decreases respectively from the speed selected on the speed adjustment device. A variable impedance element mechanically coupled to and adjusted by the speed adjustment device is also provided in the triggering circuit of the power switching device in series with the governor switch contacts to vary the triggering of the power switching device as the speed setting is varied. Thus, a variable speed versus motor supply voltage characteristic is provided when the governor contacts are closed. A wider range of stable speed control is provided than is obtained with a governor device alone. Low speed cogging and high speed hunting problems are also minimized. The variable impedance element in various embodiments is arranged to provide a variable impedance characteristic over a portion of the speed adjustment device range and a fixed impedance over the remainder of the range.
Abstract translation: 利用控制可调离心控制的调速器装置的速度调节装置，为电器等提供电动机控制电路。 调速器包括开关触点装置，其连接在电力开关装置的触发电路中，例如TRIAC，用于选择性地将电器的电动机连接到电源连接。 调速器设备的开关触点随着电动机转速的变化而分别从速度调节装置上选择的速度增加和减小。 机械耦合到速度调节装置并由调速装置调节的可变阻抗元件还与调速器开关触点串联在电源开关装置的触发电路中，以随着速度设定的变化而改变功率开关装置的触发。 因此，当调速器触点闭合时，提供变速与电机电源电压特性。 提供比通过调速器单独获得的更宽范围的稳定速度控制。 低速齿槽和高速狩猎问题也被最小化。 各种实施例中的可变阻抗元件布置成在速度调节装置范围的一部分上提供可变阻抗特性，并且在该范围的其余部分上提供固定阻抗。
-
公开(公告)号：US4002962A
公开(公告)日：1977-01-11
申请号：US402220
申请日：1973-10-01
Applicant: Samuel A. Miller
Inventor： Samuel A. Miller
CPC classification number: H02P23/22 , Y10S388/911
Abstract: Described herein is a phase locked servo loop circuit which causes a DC mr to operate synchronously regardless of DC motor load. The circuit comprises a pick-off device which generates an integral number of voltage pulses each time the motor rotates through 360.degree. and a clock pulse generator that provides fixed frequency pulses. The output pulse of the pick-off device is applied to the input of a logic circuit which either opens or closes a switch in response to phase differences between the train of pick off pulses and the train of clock pulses to control the speed of the motor.
Abstract translation: 这里描述了一种锁相伺服环路电路，其使直流电动机同步运行，而与直流电动机负载无关。 该电路包括每次电机旋转360°时产生整数个电压脉冲的拾取装置和提供固定频率脉冲的时钟脉冲发生器。 拾取装置的输出脉冲被施加到逻辑电路的输入端，该逻辑电路响应于拾取脉冲序列与时钟脉冲串之间的相位差来打开或关闭开关，以控制电动机的速度 。
-
公开(公告)号：US4626755A
公开(公告)日：1986-12-02
申请号：US681535
申请日：1984-12-14
Applicant: James A. Butcher , Harold A. Padgett
Inventor： James A. Butcher , Harold A. Padgett
CPC classification number: H02P7/063
Abstract: An electrical circuit for connecting an electric motor to an electrical source of supply comprising a double pole single throw switch having four quick-connect terminals thereon. Two of said terminals are connected to the electrical source of supply and the other two of said terminals connected directly to the windings of the electric motor. A centrifugal switch is provided, mounted internally of the housing of the electric motor on an insulated electric circuit board. The supply leads bypass the electric circuit board on which the centrifugal switch is mounted, thus minimizing the number of terminals and electric circuit connections and increasing the reliability and safety of the circuit.
Abstract translation: 一种用于将电动机连接到电源的电路，包括其上具有四个快速连接端子的双极单掷开关。 两个所述端子连接到电源，另外两个所述端子直接连接到电动机的绕组。 提供了一种离心开关，其安装在电动机壳体内部的绝缘电路板上。 供电线绕过安装有离心开关的电路板，从而最小化端子数量和电路连接，并提高电路的可靠性和安全性。
-
公开(公告)号：US3701935A
公开(公告)日：1972-10-31
申请号：US3701935D
申请日：1971-06-23
Applicant: KENWOOD MFG WORKING LTD
Inventor： COLLIE ARTHUR A
CPC classification number: H02P25/182 , Y10S388/917 , Y10S388/926
Abstract: An alternating current electric motor speed control circuit including a bi-directional semiconductor control element in the motor circuit triggered from a blocking to a conductive state by the application of a potential to its control electrode applied through governor contacts of a motor speed governor contacts, which contacts are closed when the motor speed drops below a particular value which can be varied and which carry a small proportion of the total motor current.
Abstract translation: 一种交流电动机速度控制电路，其包括通过向通过电动机调速器触点的调速器触点施加的控制电极施加电位而从阻塞触发到导通状态的电动机电路中的双向半导体控制元件， 当电机速度下降到可以变化的特定值并且占电机总电流的一小部分时，触点闭合。
-
公开(公告)号：US3586945A
公开(公告)日：1971-06-22
申请号：US3586945D
申请日：1968-02-14
Applicant: ARVIN IND INC
Inventor： GANSKE KINGSTON E , KELLEY JERRY O
CPC classification number: H02P25/182
Abstract: A synchronous hysteresis electric motor operates at its synchronous speed to drive a load such as the capstan in a magnetic recording system. A separate power supply circuit to the synchronous motor includes a motor speed sensitive feedback control such as a governor operated switch, which interrupts the power supply to the motor whenever the motor exceeds a predetermined speed lower than synchronous speed, and restores the power supply as soon as the motor slows beyond the lower speed.
-
-
-
-
-
-
-
-
-
Search Results
18
records
(took 0.017 seconds)
