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1. 发明授权

US11431234B2 Rotor assembly for DC motor 有权
公开(公告)号：US11431234B2
公开(公告)日：2022-08-30
申请号：US16982969
申请日：2018-03-21
申请人： JOHNSON ELECTRIC INTERNATIONAL AG
发明人： Cheong Wing Yuen , Chi Yan Tam , Chi Hung Jacky Chan
IPC分类号： H02K23/66 , H02K13/14
摘要： A rotor assembly for a DC motor is provided which includes a rotor having a rotor shaft, a commutator mounted to the rotor shaft, and a varistor which is connected to the commutator via an electrically-conductive solderless fixing means, such as an electrically-conductive adhesive.

2. 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.

3. 发明授权

US06858955B2 End cap assembly 失效
标题翻译：端盖组件
公开(公告)号：US06858955B2
公开(公告)日：2005-02-22
申请号：US09933008
申请日：2001-08-21
申请人： James Ching Sik Lau
发明人： James Ching Sik Lau
IPC分类号： H01R13/719 , H01R39/24 , H02K5/14 , H02K5/22 , H02K11/02 , H02K13/00 , H02K13/14 , H02K5/24 , H01R39/38 , H02K5/00 , H02K11/00
CPC分类号： H02K11/026 , H01R13/719 , H01R39/24 , H02K5/145 , H02K5/225 , H02K11/40
摘要： An end cap assembly 20 for an electric motor has an insulating body 22 and a conductive cover 24. The cover 24 supports a bearing for a shaft of the motor. The body 22 supports brushes and motor terminals. An EMI device 36 is electrically connected across the motor terminals and is earthed to the cover by way of resilient contacts.
摘要翻译：用于电动机的端盖组件20具有绝缘体22和导电盖24.盖24支撑用于电机轴的轴承。主体22支撑电刷和电机端子。 EMI器件36跨越电动机端子电连接，并且通过弹性接触件接地到盖子上。

4. 发明授权

US4845393A Radio frequency suppression for fuel pump 失效
标题翻译：燃油泵射频抑制
公开(公告)号：US4845393A
公开(公告)日：1989-07-04
申请号：US145888
申请日：1988-01-20
申请人： James P. Burgess , Harold Moy
发明人： James P. Burgess , Harold Moy
IPC分类号： F02M37/08 , F04D5/00 , F04D13/08 , H02K11/02 , H02K13/00 , H02K13/14 , H04B15/02
CPC分类号： H02K5/225 , H02K11/026 , H04B15/025
摘要： An end cap for a fuel pump provides suppression of radio frequency noise generated by the motor of the pump. The end cap includes radio frequency suppression circuitry disposed therewithin and is configured so as to be a direct replacement for conventionally utilized end caps.
摘要翻译：燃油泵的端盖可以抑制泵的电机产生的射频噪声。端盖包括设置在其中的射频抑制电路，并且被配置为直接替代常规使用的端盖。

5. 发明授权

US4734607A Miniature motor with spark quenching connection between commutator and brushes 失效
标题翻译：微型电机与换向器和电刷之间的火花淬火连接
公开(公告)号：US4734607A
公开(公告)日：1988-03-29
申请号：US930691
申请日：1986-11-10
申请人： Masaaki Ikawa , Kazuichi Mabuchi
发明人： Masaaki Ikawa , Kazuichi Mabuchi
IPC分类号： H02K13/04 , H01R39/54 , H02K11/02 , H02K13/06 , H02K13/10 , H02K13/14 , H02K23/66
CPC分类号： H02K11/028 , H02K13/06 , H02K13/105 , Y10T29/49011
摘要： A miniature motor having a plurality of commutator segments with commutator terminals which are connected to rotor windings. The commutator terminals are disposed on an insulating cylinder which is fixedly fitted to a motor rotating shaft, and a spark-quenching resistor connects each of the commutator segments. This resistor is a disc-shaped electrically conductive rubber ring which is fitted to the insulating cylinder so that the end face of the disc-shaped ring comes in contact with the commutator segment and commutator terminals and is brought into intimate contact with the commutator terminals by heating.
摘要翻译：一种微型电动机，其具有多个具有换向器端子的换向器段，该换向器端子连接到转子绕组。换向器端子设置在与电动机旋转轴固定的绝缘筒上，并且火花熄灭电阻器连接每个换向器片段。该电阻器是与绝缘筒体嵌合的圆盘状导电橡胶环，盘状环的端面与换向片和换向器端子接触，并与换向器端子紧密接触，加热。

6. 发明授权

US3906321A Direct current motors 失效
标题翻译：直流电机
公开(公告)号：US3906321A
公开(公告)日：1975-09-16
申请号：US40667773
申请日：1973-10-15
申请人： SALIHI JALAL TAWFIQ
发明人： SALIHI JALAL TAWFIQ
IPC分类号： H02K13/14 , H02K25/00 , H02K13/00
CPC分类号： H02K13/14 , H02K25/00
摘要： This invention relates to improved direct current motors where an auxiliary path is provided for the flow of reactive energy associated with motor winding inductances during fast changes in current. These changes occur while the brushes move from one commutator segment to another during motor rotation. The auxiliary path limits the induced voltage automatically to a predetermined maximum value thus allowing higher motor speed, higher power density and longer life.
摘要翻译：本发明涉及改进的直流电动机，其中在电流快速变化期间为与电动机绕组电感相关联的无功电能的流动提供辅助路径。当电机旋转期间电刷从一个换向器段移动到另一个时，会发生这些变化。辅助通道将感应电压自动限制在预定的最大值，从而允许更高的电机速度，更高的功率密度和更长的使用寿命。

7. 发明授权

US3662201A Commutation system for dynamoelectric machines 失效
标题翻译：用于动力电机的通信系统
公开(公告)号：US3662201A
公开(公告)日：1972-05-09
申请号：US3662201D
申请日：1970-12-14
申请人： GEN MOTORS CORP
发明人： MADSEN JOHN E
IPC分类号： H02K13/14 , H02K23/36 , H01R39/46
CPC分类号： H02K23/36 , H02K13/14
摘要： In a preferred form, a commutation system for dynamoelectric machines includes a pair of commutator rings connected to an armature winding and carrying two sets of brushes. A plurality of working circuits are formed between pairs of brushes in the two brush sets so that work current in each working circuit flows through one pair of brush contacts. However, coils undergoing commutation in the armature winding are short-circuited by two pairs of brush contacts. This increases the brush contact resistances through which local current must flow when it is developed in the coils undergoing commutation. The increased brush contact resistances develop higher brush voltage drops to reduce the undesirable effects of the local currents without increasing losses in the work currents.
摘要翻译：在优选形式中，用于电动机的换向系统包括连接到电枢绕组并且承载两组电刷的一对换向器环。在两个电刷组中的电刷对之间形成多个工作电路，使得每个工作电路中的工作电流流过一对电刷触点。然而，在电枢绕组中进行换向的线圈由两对电刷触点短路。这增加了当在正在进行换向的线圈中显影时局部电流必须流过的电刷接触电阻。增加的电刷接触电阻产生较高的电刷电压降，以减少局部电流的不期望的影响，而不增加工作电流的损耗。

8. 发明授权

US3453513A Dynamo-electric machine 失效
标题翻译： DYNAMO-ELECTRIC MACHINE
公开(公告)号：US3453513A
公开(公告)日：1969-07-01
申请号：US3453513D
申请日：1966-03-10
申请人： NAT RES DEV
发明人： BATES JAMES JOHN , SRIDHAR TIRUCHENDURAI VISWANAT
IPC分类号： H01R39/06 , H01R39/46 , H02K13/14 , H02P3/06 , H02K29/00
CPC分类号： H02K13/14 , H01R39/06 , H01R39/46

9. 发明授权

US2843763A Apparatus for the switching of electric power circuits without contacts 失效
公开(公告)号：US2843763A
公开(公告)日：1958-07-15
申请号：US49198355
申请日：1955-03-03
申请人： SIEMENS AG
发明人： WILHELM KAFKA , MANFRED TSCHERMAK
IPC分类号： G05F1/46 , H02K13/14 , H02K29/08 , H02M11/00 , H02P13/10 , H03K17/00 , H03K17/90
CPC分类号： G05F1/46 , H02K13/14 , H02K29/08 , H02M11/00 , H02P13/10 , H03K17/00 , H03K17/90 , Y10T307/74

10. 发明授权

US1470428A Commutation of dynamo-electric machines 失效
标题翻译：发电机的换向
公开(公告)号：US1470428A
公开(公告)日：1923-10-09
申请号：US35876320
申请日：1920-02-14
申请人： DORSEY JOHN W
发明人： DORSEY JOHN W
IPC分类号： H02K13/14
CPC分类号： H02K13/14

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