-
公开(公告)号：US20170366054A1
公开(公告)日：2017-12-21
申请号：US15611157
申请日：2017-06-01
发明人： Yue LI , James Ching Sik LAU , Chui You ZHOU , Gang LI , Xiao Ning ZHU , Ya Ming ZHANG , Yong Gang ZHANG
摘要： A PMDC motor includes a housing, a stator magnet fixed to the inner circumferential surface of the housing, a rotor core received in the housing and facing the stator magnet, and rotor windings wound around the rotor core. The rotor core includes a plurality of rotor teeth, each of the rotor teeth including a tooth body and a tooth tip. A ratio of the outer diameter of the rotor core to an outer diameter of the housing is in the range of 0.6 to 0.67. Compared to the existing PMDC motor, the PMDC motor of the present invention can satisfy the same performance requirement, while reducing the size and weight of the rotor core and hence the weight of the rotor windings. In this way, the total weight and hence the moment of inertia of the rotor is reduced, thereby effectively reducing the noise generated during operation of the motor.
-
公开(公告)号：US20170126083A1
公开(公告)日：2017-05-04
申请号：US15300154
申请日：2015-03-25
申请人： 140ENERGY, INC.
摘要： An electric motor apparatus is described that utilizes a Halbach array and a ferrofluid core. The electric motor comprises a rotor assembly and a stator assembly, each of which utilizes a Halbach array. A ferrofluid core is utilized in the stator, which results in a motor that is less susceptible to core loss and operates with increased efficiency.
-
公开(公告)号：US20160190756A1
公开(公告)日：2016-06-30
申请号：US14423646
申请日：2013-08-14
发明人： Marcel Froebel , Martin Helmis , Bernd Mack , Peter Wieske
IPC分类号： H01R39/18
CPC分类号： H01R39/18 , H02K13/003 , H02K13/006 , H02K23/62
摘要： An electric motor with contact commutation may include an external stator and an internal, rotatably mounted rotor. A magnet arrangement including at least one permanent magnet may be arranged fixedly on the rotor. A coil arrangement including at least one electric coil may be arranged fixedly on the stator. A contact commutation assembly may be in communication with the coil arrangement.
摘要翻译： 具有接触换向的电动机可以包括外部定子和内部可旋转地安装的转子。 包括至少一个永磁体的磁体布置可以固定地布置在转子上。 包括至少一个电线圈的线圈装置可以固定地布置在定子上。 接触换向组件可以与线圈装置连通。
-
公开(公告)号：US20080088189A1
公开(公告)日：2008-04-17
申请号：US11870483
申请日：2007-10-11
申请人： Jacques Orban
发明人： Jacques Orban
摘要： The claimed invention relates to a submersible direct-current electric motor to be used, in particular, for driving a submersible pump in downhole oil production. The claimed motor includes a fixed armature winding; a housing which encloses the armature winding and rotates around it; magnetic field generation means which are fixed in the housing and interact with the armature winding to generate electromagnetic torque; a fixed collector which is electrically connected to the armature winding; brushes which rotate around the fixed collector and are connected to the external electric circuit. The fixed collector and the brushes rotating around it are enclosed in an insulating chamber. The technical result consists in the elimination of the risk of a short circuit between the brushes and the collector of the direct-current motor when it is used as a submersible motor.
摘要翻译： 所要求保护的发明涉及一种潜水式直流电动机，特别是用于在井下产油中驱动潜水泵。 所要求保护的电动机包括固定的电枢绕组; 包围电枢绕组并绕其旋转的壳体; 磁场产生装置固定在壳体中并与电枢绕组相互作用以产生电磁转矩; 电连接到电枢绕组的固定集电器; 围绕固定集电器旋转并连接到外部电路的电刷。 固定收集器和绕其旋转的电刷被封闭在绝缘室中。 技术结果在于当用作潜水电机时，消除了直流电动机的电刷和集电器之间短路的风险。
-
公开(公告)号：US07285929B2
公开(公告)日：2007-10-23
申请号：US11216509
申请日：2005-08-31
申请人： Shehab Ahmed
发明人： Shehab Ahmed
IPC分类号： H02K27/00
CPC分类号： H02K13/006 , E21B43/128 , H02K5/132 , H02K7/11 , H02K13/003 , H02K23/62 , H02P6/16
摘要： A commutation apparatus drives a brushless motor having a stator equipped with a plurality of coils and a rotor. The commutation apparatus comprises a rotatable commutator shaft, two or more conducting rings carried discretely about the shaft, and two or more conducting segments carried discretely about the shaft at staggered positions along or near a plane perpendicularly intersecting the shaft. Each conducting segment is electrically connected to one of the conducting rings. Two or more electrical source contacts are provided for rotatably connecting a power supply across pairs of the conducting rings. A plurality of electrical load contacts is further provided for sequentially, rotatably connecting the conducting segments to discrete coils of the brushless motor. In particular embodiments of the commutation apparatus, a magnetic coupling is employed for rotatably coupling the commutator shaft to the rotor of the brushless motor, and a pressure-bearing container is provided for rotatably supporting the commutator shaft and the coupling therein.
摘要翻译： 换向装置驱动具有配置有多个线圈和转子的定子的无刷电动机。 换向装置包括一个可旋转的换向器轴，两个或更多个传导环离散地围绕该轴承载，以及两个或更多个传导段，其沿着或垂直于轴垂直的平面的交错位置离轴地承载轴。 每个导电段电连接到一个导电环。 提供了两个或更多个电源触点，用于可旋转地连接导电环对上的电源。 还提供了多个电负载触点，用于顺序地将导电段可转动地连接到无刷电动机的分立线圈。 在换向装置的特定实施例中，采用磁耦合来将换向器轴可旋转地连接到无刷电动机的转子上，并且设置有用于可转动地支撑换向器轴和联轴器的承压容器。
-
公开(公告)号：US06873084B2
公开(公告)日：2005-03-29
申请号：US10647835
申请日：2003-08-25
CPC分类号： H02K23/62
摘要： The Stationary Armature Machine (SAM) comprised of a stationary armature, a stationary commutator affixed to the frame or housing and a rotating field and brushes affixed to a common shaft as a means for mechanical commutation of electrical currents based on Lorentz' force law. SAM's unique stationary armature increases current carrying capacity and heat abatement at low voltages and high rotating speeds without increasing overall physical size relative to BLDC motors. SAM's armature and field structure are arranged in reverse having the armature in a stationary position with a commutation assembly affixed to the machine's housing while said field structure (and brush assembly) rotate at the center of the machine. By making the armature and commutator assembly stationary, the current carrying conductors can be made much larger without being subjected to extreme centrifugal forces at high rotating velocities. SAM is ideally suited for applications that require high torque and power at high rotational speeds in a small inexpensive package.
摘要翻译： 固定电枢机构（SAM）包括固定电枢，固定在框架或壳体上的固定换向器和固定到公共轴上的电刷，作为基于洛伦兹力定律的电流机械换向的装置。 SAM独特的固定电枢在低电压和高转速下增加了电流承载能力和减少热量，而不会增加相对于BLDC电机的整体物理尺寸。 SAM的电枢和磁场结构相反布置，其中电枢处于静止位置，其中换向组件固定到机器的壳体上，同时所述磁场结构（和电刷组件）在机器的中心旋转。 通过使电枢和换向器组件固定，可以使载流导体大得多，而不会在高旋转速度下受到极大的离心力。 SAM非常适合在小型便宜包装中以高转速需要高扭矩和高功率的应用。
-
公开(公告)号：US6412753B2
公开(公告)日：2002-07-02
申请号：US90507601
申请日：2001-07-16
摘要： A rotor 55 having magnets 57 is assembled to rotate freely by bearings 58, 59 with respect to a stator which comprises coils 54 and stator cores 53. A current carrying device is formed from motor brushes 73, and slip rings 75 and commutator pieces 74 of a disk-shaped feeding unit 72, and the current carrying device is arranged on an outer side opposite to a side arranging the magnets 57 on a rotational axis X of the rotor 55 with respect to the bearing 58.
摘要翻译： 具有磁体57的转子55被组装成通过轴承58,59相对于包括线圈54和定子铁芯53的定子自由旋转。载流装置由电动机刷73和滑环75以及换向片74 盘状馈送单元72，并且载流装置布置在相对于轴承58在转子55的旋转轴线X上布置磁体57的相对侧的外侧。
-
公开(公告)号：US20010005105A1
公开(公告)日：2001-06-28
申请号：US09733589
申请日：2000-12-07
发明人： You-young Choe
IPC分类号： H02K001/00
CPC分类号： H02K19/103 , H02K19/36 , H02K23/62
摘要： A self-excited reluctance motor capable of driving a motor with a commutator and without having to use a commutator logic for power electric circuit. The self-excited reluctance motor includes a stator having a plurality of stator poles respectively wound by wires of different phases; a rotator having a plurality of rotator poles formed on an outer circumference thereof, the rotator rotatably inserted in the stator; and a commutator. The commutator includes a body coaxially arranged with the rotator, and formed of an insulating material; an electrode formed on an outer circumference of the commutator body; a plurality of switching portions formed on the outer circumference of the commutator body at a predetermined distance from each other, and electrically connected with the electrode; a plurality of switching brushes connected to stator wires of different phases and to the plurality of switching portions, for permitting an electric current to flow the respective stator wires; and an electrode brush electrically connected to an external power source and to the electrode.
摘要翻译： 一种自激磁阻电动机，能够用换向器驱动电动机，而不需要使用用于电力电路的换向器逻辑。 所述自激磁阻电动机包括具有分别由不同相的线缠绕的多个定子极的定子， 旋转体，其具有形成在其外周上的多个旋转极，所述旋转体可旋转地插入所述定子中; 和换向器。 换向器包括与转子同轴布置的主体，并由绝缘材料形成; 形成在换向器主体的外周上的电极; 多个切换部，形成在所述换向器主体的外周上彼此预定距离，并与所述电极电连接; 连接到不同相的定子线的多个开关电刷和多个开关部分，用于允许电流流动各个定子线; 以及与外部电源电连接的电极刷。
-
公开(公告)号：US5142181A
公开(公告)日：1992-08-25
申请号：US550048
申请日：1990-07-09
申请人： Stanley E. Newell
发明人： Stanley E. Newell
摘要： The subject dynamoelectric machine comprises an armature between two field assemblies. The armature may rotate between the field assemblies or vice versa. The armature has three two-coil windings with the coils of each winding located diametrically opposite each other on the armature and wound in opposite directions. Each field assembly comprises a field ring, winding cores (or permanent magnets) and pole faces which span essentially 180.degree., there being a north face and a south face for each field assembly. The field assemblies are positioned with like faces facing each other. The commutation apparatus energizes each armature winding just as it is positioned completely between the field pole faces and de-energizes it just before it starts to move out from between the faces because of the relative motion between the armature and field assemblies. The machine concept is adaptable to pancake and cylindrical configuration. The opposite direction winding of the armature coils virtually eliminates armature inductance and reaction effects. The machine also adapts to brushless commutation techniques.
摘要翻译： 本发明的电动机包括两个现场组件之间的衔铁。 电枢可以在现场组件之间旋转，反之亦然。 电枢具有三个双线圈绕组，每个绕组的线圈在电枢上彼此径向相对并且沿相反的方向缠绕。 每个场组件包括场环，绕组芯（或永磁体）和极面，其横跨基本上为180°，每个场组件具有北面和南面。 现场组件以相同的面朝下地定位。 换向装置使每个电枢绕组正常工作，就像它完全定位在磁场极面之间，并由于电枢和励磁组件之间的相对运动而在它开始从两个面之间移出之前使其断电。 机器概念适用于煎饼和圆柱形配置。 电枢线圈的相反方向绕组实际上消除了电枢电感和反应效应。 该机还适应于无刷换向技术。
-
公开(公告)号：US3915365A
公开(公告)日：1975-10-28
申请号：US31861872
申请日：1972-12-26
申请人： MOTOROLA INC
发明人： LACE MELVIN A
IPC分类号： G01P3/42 , G11B15/18 , G11B15/28 , G11B15/54 , H02K7/10 , H02K7/20 , H02K23/62 , H02P7/29 , B65H17/22
CPC分类号： G11B15/54 , G11B15/1891 , H02K7/1004 , H02K7/20 , H02K23/62 , H02P7/2913
摘要： A tape drive system for a cartridge tape player having a small thickness includes a DC motor which has a stator with a plurality of field windings, and a rotor with a permanently magnetized ring magnet coaxially surrounding the stator. Brushes on the rotor engage contacts on the stator to energize the field windings in sequence. A drive wheel connected to the rotor is coupled by a drive belt to a capstan pulley, which is larger than the drive wheel, to drive the capstan of the tape drive system, with the faster rotating rotor providing a flywheel effect to stabilize the drive. A tachometer generator includes a ring gear which is connected to the rotor and has a large number of teeth around its periphery cooperating with segments of a coaxial ring magnet. A pickup coil adjacent the ring magnet is connected to a control circuit which is coupled to the motor field windings to energize the same, with the control circuit changing the drive current to compensate for incremental changes in motor speed.
摘要翻译： 用于具有小厚度的盒式磁带播放器的磁带驱动系统包括具有多个励磁绕组的定子的DC电动机和同轴地围绕定子的永久磁化的环形磁体的转子。 转子上的刷子接合定子上的触点，以依次给励磁绕组提供励磁。 连接到转子的驱动轮通过驱动带连接到主动轮上，该驱动轮大于驱动轮，以驱动带驱动系统的主导轴，转速较高的转子提供飞轮效应以稳定驱动。 转速计发生器包括齿圈，该齿圈连接到转子并且在其周边周围具有大量齿，与同轴环磁体的段配合。 与环形磁铁相邻的拾取线圈连接到控制电路，该控制电路耦合到电机励磁绕组以对其施加电能，控制电路改变驱动电流以补偿电动机速度的增量变化。
-
-
-
-
-
-
-
-
-
搜索结果
101 条记录 (耗时 0.015 秒)
