专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

61. 发明授权

US5818186A Multiple impact motor drive for stapling 失效
标题翻译：多重冲击电机驱动装订
公开(公告)号：US5818186A
公开(公告)日：1998-10-06
申请号：US627300
申请日：1996-04-03
申请人： Francisco Javier Camino
发明人： Francisco Javier Camino
IPC分类号： B27F7/36 , B65H37/04 , H02P29/00 , H02K17/32
CPC分类号： B27F7/36 , H02P29/40
摘要： An electric stapler is provided with current in multiple pulses in order to penetrate a thick stack of paper. The stapler is provided with current sufficient to staple a thin stack of paper. If the stapler does not complete its staple function after a time period corresponding to anticipated completion of the cycle, the current is interrupted. The current is then reapplied after the load on the stapler has attenuated. The reapplication of current results in a hammering action. This permits a thicker stack of paper to be stapled with a stapler which is optimized for the thin stack.
摘要翻译：电动订书机以多个脉冲提供电流，以便穿透厚纸堆叠。订书机具有足够的电流来装订薄堆纸。如果订书机在对应于周期的预期完成的时间段之后未完成其装订功能，则电流中断。然后在订书机上的负载衰减后重新施加电流。目前的重新应用导致了锤击行动。这样可以使用针对薄堆叠进行优化的订书机来装订较厚的纸叠。

62. 发明授权

US5457364A Bridge motor driver with short-circuit protection and motor-current limiting feature 失效
标题翻译：桥式电机驱动器具有短路保护和电机限流功能
公开(公告)号：US5457364A
公开(公告)日：1995-10-10
申请号：US182327
申请日：1994-01-18
申请人： Alberto Bilotti , Jose L. Tallarico
发明人： Alberto Bilotti , Jose L. Tallarico
IPC分类号： H02H7/085 , H02P7/00 , H02K17/32
CPC分类号： H02H7/0855 , H02P29/027 , H02P7/04
摘要： A full-wave bridge driver has four driver transistors. A motor is connected to the output terminals of the bridge. A fault detector latches off the four driver transistors when the bridge current jumps essentially instantaneously to exceed a predetermined safe-peak value due to a fault occurring in the bridge. A comparator has a predetermined current threshold, that is less than the predetermined safe-peak value of the fault detector, and is connected to a bridge-current sensing resistor for, when the bridge current exceeds the current threshold, producing a signal proportional to the difference between the bridge current and the current threshold. A pulse-width-modulator is connected to the comparator means output, and during periods such as at motor starting when the bridge current gradually exceeds the comparator threshold value, chops the signal at the bases of the four driver transistors, varying the chopped pulse widths to hold the motor current at essentially the threshold current value. For faults that occur across the motor or between the motor and either of the DC-supply terminals, the fault current paths in the bridge do not flow through the inductance of the motor and produce a sharp rising bridge fault current that is essentially transparent to the pulse width modulator which clamps high motor start currents at a level below that at which the fault detector trips the latch and shuts off the driver transistors.
摘要翻译：全波桥驱动器有四个驱动晶体管。电机连接到桥的输出端。当桥电流基本瞬时跳跃时，故障检测器锁存四个驱动晶体管，由于在桥中发生故障而超过预定的安全峰值。比较器具有小于故障检测器的预定安全峰值的预定电流阈值，并且连接到电桥电流检测电阻器，当桥电流超过电流阈值时，产生与桥电流和电流阈值之间的差值。脉冲宽度调制器连接到比较器装置输出端，并且在桥电流逐渐超过比较器阈值的电机启动期间，在四个驱动晶体管的基极处切断信号，改变斩波脉冲宽度以将电动机电流保持在基本上的阈值电流值。对于在电动机或电动机与任何一个直流电源端子之间发生的故障，桥中的故障电流路径不会流过电动机的电感，并产生尖锐的上升桥故障电流，其基本上对于脉冲宽度调制器，其将电动机启动电流高于低于故障检测器跳闸并关闭驱动晶体管的电平。

63. 发明授权

US4639624A Torque motor having a coil with finite turning range 失效
标题翻译：具有转弯范围有限的线圈的扭矩电机
公开(公告)号：US4639624A
公开(公告)日：1987-01-27
申请号：US759964
申请日：1985-07-29
申请人： Yuuki Ejiri , Tomoo Ito , Hisato Tsuruta , Hiroshi Kamifuji
发明人： Yuuki Ejiri , Tomoo Ito , Hisato Tsuruta , Hiroshi Kamifuji
IPC分类号： F02D9/02 , F02D11/10 , H02K26/00 , H02K33/18 , H02K17/32
CPC分类号： F02D11/10 , H02K26/00 , F02D2011/102
摘要： A torque motor including a housing, a shaft member extending through the housing and supported by bearings, a stationary core in the housing and at least one coil fixed to the shaft member and arranged for rotation with respect to the stationary core within a finite range. Magnets are fixed to the housing for imparting rotational force to the coil and support members are provided in the housing for fixedly supporting the stationary core. The coil is provided with oppositely disposed free ends and extends across the stationary core between the free ends such that each of the free ends projects beyond an outer peripheral surface of the stationary core without contacting the stationary core. The support members include at least two plate members on opposite sides of the shaft member, the magnets being within the housing at portions other than where the support members are disposed.
摘要翻译：一种扭矩电动机，包括壳体，轴构件，其延伸穿过所述壳体并由轴承支撑，所述壳体中的固定铁芯和固定到所述轴构件并且布置成在有限范围内相对于所述固定铁心旋转的至少一个线圈。磁体被固定到外壳上以向线圈施加旋转力，并且支撑构件设置在壳体中用于固定地支撑固定芯。线圈设置有相对设置的自由端，并且在自由端之间延伸穿过固定芯，使得每个自由端突出超过固定芯的外周表面，而不接触固定芯。支撑构件在轴构件的相对侧上包括至少两个板构件，磁体位于不同于支撑构件的位置的部分的外壳内。

64. 发明授权

US3727086A Motor with relatively rotatable stator and rotor 失效
标题翻译：电动机相对可旋转的定子和转子
公开(公告)号：US3727086A
公开(公告)日：1973-04-10
申请号：US3727086D
申请日：1971-06-01
申请人： CHERWINK H , CHERWINK H
发明人： CHERWINK H , CHERWINK H
IPC分类号： H02K17/32 , H02K23/60
CPC分类号： H02K17/32
摘要： The ''''stator'''' of a polyphase a.c. motor is rotatably mounted in a base and arranged to drive a first pump and the rotor to drive both the load of the motor and a second pump. By valve arrangements, the pump outputs create varying back-pressures which control the relative speeds of rotation of the rotor and stator, and thus the speed of rotation of the shaft driving the load is varied.
摘要翻译：多相a.c.的“定子” 马达可旋转地安装在基座中并且布置成驱动第一泵和转子以驱动马达的负载和第二泵。通过阀装置，泵输出产生变化的背压，其控制转子和定子的相对旋转速度，因此改变驱动负载的轴的旋转速度。

65. 发明授权

US3505581A Malfunction detector circuit for a solid state electric motor controlled vehicle 失效
公开(公告)号：US3505581A
公开(公告)日：1970-04-07
申请号：US3505581D
申请日：1968-05-27
申请人： SQUARE D CO
发明人： MUELLER ARMAND G , MONTROSS ROBERT C
IPC分类号： H01F38/30 , H02H1/00 , H02H7/08 , H02K17/32
CPC分类号： H01F38/30 , H02H1/0007 , H02H7/0838

66. 发明授权

US3443135A Rotary-magnet variable-voltage alternator,especially applicable to the power-transmission control of automobile vehicles 失效
标题翻译：旋转电磁变压器，特别适用于汽车动力传动控制
公开(公告)号：US3443135A
公开(公告)日：1969-05-06
申请号：US3443135D
申请日：1966-05-09
申请人： RENAULT
发明人： LOMBARD CLAUDE-EDMOND
IPC分类号： B60L15/20 , F16H59/18 , F16H59/36 , F16H61/02 , G01P3/46 , H02K17/32 , H02K21/00 , H02K21/14 , H02P9/40 , H02K21/12
CPC分类号： H02K21/145 , F16H59/18 , F16H59/36 , F16H61/0206 , G01P3/46 , G01P3/465 , H02K21/028 , H02K2201/12 , Y02T10/7258

67. 发明授权

US11932137B2 Four-wheel-drive vehicle 有权
公开(公告)号：US11932137B2
公开(公告)日：2024-03-19
申请号：US17248683
申请日：2021-02-03
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA
发明人： Atsushi Tabata , Koichi Okuda , Masato Nakano , Yuki Makino
IPC分类号： H02K17/32 , B60L7/18 , B60L15/20
CPC分类号： B60L7/18 , B60L15/2009 , B60L2240/12 , B60L2240/423 , B60L2260/28
摘要： A regenerative torque upper limit is set to a larger value when a rear-wheel distribution ratio is small than when the rear-wheel distribution ratio is large. Accordingly, when a distribution of a drive power to front wheels is large, a regenerative torque of a second rotary machine can be increased such that wheels are less likely to slip at the time of performing of regeneration control when the distribution of the drive power to the front wheels is small in comparison with a case in which the regenerative torque upper limit is set to a constant value similarly to when the distribution of the drive power to the front wheels is small. In this way, it is possible to increase the regenerative torque of the second rotary machine according to the rear-wheel distribution ratio.

68. 发明授权

US11146205B2 Method for controlling electric motors, corresponding circuit and computer program product 有权
公开(公告)号：US11146205B2
公开(公告)日：2021-10-12
申请号：US16750216
申请日：2020-01-23
申请人： STMicroelectronics S.r.l.
发明人： Andrea Spampinato , Gianluigi Forte
IPC分类号： H02K17/32 , H02K23/68 , H02K27/30 , H02P7/00 , H02P29/032
摘要： A multi-phase electric motor includes a stator winding. The multi-phase electric motor is controlled by regulating a current flowing in the multi-phase electric motor in response to an applied voltage. An overload condition of the multi-phase electric motor is detected by monitoring a thermal increase of the value of a stator resistance of the stator winding of the multi-phase electric motor during a steady state condition of said multi-phase electric motor in which the current flowing in the motor has constant phase, and the motor is operating at constant load with constant speed.

69. 发明授权

US10790768B2 Motor driving control device and motor driving control method 有权
公开(公告)号：US10790768B2
公开(公告)日：2020-09-29
申请号：US16282518
申请日：2019-02-22
申请人： MINEBEA MITSUMI Inc.
发明人： Hidetoshi Hijikata
IPC分类号： H02K17/32 , H02P6/24 , H02P8/24 , H02P6/182 , H02P8/14
摘要： A rotational stop position of a motor is accurately controlled. A motor driving control device (100) includes a BEMF detection unit (118) for detecting zero-cross of back electromotive force of a motor coil provided in a motor, and a CPU (101) for controlling driving of the motor by a 1-phase energization method and, without a position sensor, performing commutation based on the zero-cross of the back electromotive force detected by the BEMF detection unit (118), controlling driving of the motor based on a rotational speed corresponding to a drive voltage and a load, and performing extension control of a commutation time for each step from a calculated deceleration start step until the rotational speed of the motor decreases to a predetermined rotational speed or less for enabling the motor to stop at a desired stop position when the driving of the motor is stopped.

70. 发明授权

US10715073B1 Robot electronics unit (REU) motor controller board (MCB) 有权
公开(公告)号：US10715073B1
公开(公告)日：2020-07-14
申请号：US16145543
申请日：2018-09-28
申请人： United States of America as represented by the Administrator of NASA
发明人： Ireneusz Orlowski , Pietro A. Sparacino , Seshagiri Nadendla , Roger M. Chiei , David J. Petrick
IPC分类号： H02P23/00 , H02P27/08 , H02K11/21 , H02K11/33 , H02K11/35 , H02K13/14 , H02K17/12 , H02K17/32 , H02K24/00 , B25J11/00 , B64G4/00 , H02K11/02 , B25J9/12 , B64G1/10
摘要： The present invention relates to a Robot Electronics Unit (REU) motor controller board (MCB) with a trapezoid wave design, which can utilize power efficiently and reduce electromagnetic interference. The MCB uses a modulator or Buck Converter to regulate the voltage before it is passed to the motors used in robotic arms in space applications. The REU MCB includes: a commutator disposed on the MCB and connected to a three-phase induction motor; and a modulator disposed on the MCB and which precedes the commutator, the modulator which utilizes pulse width modulation (PWM) to regulate a voltage to the commutator and provide a predetermined current to the commutator. The modulator regulates the voltage by stepping it down from a 100V power input signal before the voltage is passed to the motor. The output of the modulator includes a trapezoid waveform design which controls the motor and reduces electromagnetic interference.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式