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1. 发明授权

US11183895B2 Electric motor 有权
公开(公告)号：US11183895B2
公开(公告)日：2021-11-23
申请号：US15376351
申请日：2016-12-12
申请人： Dyson Technology Limited
发明人： Simon Alexander Locke , Nigel Youatt Dymond , Andrew Simeon Barnes
IPC分类号： H02K3/18 , H02K1/14 , H02K3/52 , H02K21/18 , H02K37/16 , H02K15/02 , H02K1/27 , H02K7/14
摘要： An electric motor comprising: a frame; and a stator assembly; the stator assembly including a bobbin assembly and at least one c-shaped stator core. The frame comprises at least one lug, the bobbin assembly includes at least one recess, and the stator assembly is fixed to the frame by fixing the lug inside the recess of the bobbin assembly.

2. 发明授权

US10637304B2 Single phase permanent magnet motor and stator core thereof 有权
公开(公告)号：US10637304B2
公开(公告)日：2020-04-28
申请号：US15252698
申请日：2016-08-31
申请人： Johnson Electric S.A.
发明人： Yue Li , Chui You Zhou , Yong Wang , Yong Li
IPC分类号： H02K1/27 , H02K1/14 , H02K21/18
CPC分类号： H02K1/143 , H02K21/185
摘要： A single phase permanent magnet motor includes a stator core, windings wound around the stator core, and a permanent magnet rotor. The stator core includes an end portion and two spaced arm portions. Each arm portion includes a connecting arm connected to the end portion and a pole claw formed at a distal end of the connecting arm. The two pole claws define a space for receiving the rotor. The pole claws surround the space and form an arc pole surface. The arc pole surface is recessed to form a startup groove located at a central axis of the pole claw. The two pole claws are spaced apart to form two slot openings there between. A line connecting the two slot openings is orthogonal to the central axis of the pole claw.

3. 发明申请

US20190214867A1 ELECTRIC MOTOR HAVING A DIAMETRIC COIL 审中-公开
公开(公告)号：US20190214867A1
公开(公告)日：2019-07-11
申请号：US16327617
申请日：2016-12-15
申请人： VASTECH HOLDINGS LTD.
发明人： Alexander MOSTOVOY , Victor Shlakhetski
IPC分类号： H02K1/27 , H02K1/14 , H02K21/18 , H02K11/215
CPC分类号： H02K1/2766 , H02K1/146 , H02K1/27 , H02K1/278 , H02K3/00 , H02K11/215 , H02K21/18
摘要： The invention relates to an electric motor, which comprises: (A) a disk-type rotor which comprises: (a) a co-centric shaft and disk; (b) two or more permanent magnets on top or within said disk; and (c) pieces of ferromagnetic material that are disposed between at least two of said permanent magnets; and, (B) a stator which comprises: (d) a diametric coil unit which is disposed along a diameter of the rotor's disk, the coil unit comprises: (d1) a diametric rectangular bobbin having a rectangular cavity, said rectangular cavity having a length slightly larger than the diameter of the rotor; (d2) a coil which is wounded around said diametric bobbin; and (d3) upper and lower holes within said bobbin to contain said shaft, thereby to allow rotation of said rotor within the said rectangular cavity.

4. 发明授权

US10250090B2 Rotor, motor, pump and cleaning apparatus 有权
公开(公告)号：US10250090B2
公开(公告)日：2019-04-02
申请号：US14965426
申请日：2015-12-10
申请人： JOHNSON ELECTRIC INTERNATIONAL AG
发明人： Min Li , Moola Mallikarjuna Reddy , Xiao Lin Zhang
IPC分类号： F04D25/06 , H02K1/27 , F04D13/06 , H02K1/14 , F04D17/10 , H02K1/28 , H02K21/18 , H02K29/03 , H02K7/14 , H02K11/33
摘要： A rotor, motor, pump and a cleaning apparatus are provided. The rotor includes a shaft and two magnets fixed to the rotary shaft. Each magnet comprises a radial outer surface, a radial inner surface, and two connecting surfaces that connect the radial outer surface and the radial inner surface at opposite ends of the magnet. The radial outer surface has an arc section. The radial inner surfaces of the two magnets cooperatively define an inner bore for the shaft to pass therethrough. A ratio of a pole arc angle of each magnet to a 180-degree angle is in the range of 0.75 to 0.95.

5. 发明授权

US09709958B2 Stepping motor and timepiece 有权
公开(公告)号：US09709958B2
公开(公告)日：2017-07-18
申请号：US14486639
申请日：2014-09-15
申请人： CASIO COMPUTER CO., LTD.
发明人： Yuta Saito , Hiroyuki Hosobuchi , Junro Yano
IPC分类号： H02K37/00 , G04C3/14 , H02K21/18 , H02K37/16 , H02K37/14 , H02K3/04
CPC分类号： G04C3/146 , G04C3/14 , H02K3/04 , H02K21/185 , H02K37/14 , H02K37/16 , H02K2213/03
摘要： Disclosed is a stepping motor including a rotor, a stator which includes a rotor accommodating hole, a pair of outer notches to determine positions of saturated magnetic fluxes and inner notches disposed on an inner periphery of the stator around the rotor accommodating hole, the inner notches determining stably stationary positions of the rotor, and a coil block configured by a coil wound around a coil core which is magnetically coupled to the stator, and the outer notches are disposed on an outer periphery of the stator on opposite sides of the rotor accommodating hole. And a line that connects narrowest portions between the outer notches and the rotor accommodating hole and extends through a center of the rotor accommodating hole shifts by a predetermined angle from a line that extends through the center of the rotor accommodating hole and is orthogonal to an extending direction of the stator.

6. 发明授权

US09647593B2 Switched reluctance motors and excitation control methods for the same 有权
公开(公告)号：US09647593B2
公开(公告)日：2017-05-09
申请号：US14008200
申请日：2012-03-29
申请人： Shanshan Dai , Xiaofeng Lu
发明人： Shanshan Dai , Xiaofeng Lu
IPC分类号： H02P25/08 , H02K7/08 , H02K19/10 , H02K21/18 , H02K21/22 , H02M1/14
CPC分类号： H02P25/08 , H02K7/085 , H02K19/103 , H02K21/185 , H02K21/225 , H02K2201/12
摘要： Provided are multiple switched reluctance motors and excitation control methods for same. Motors with various structures are provided having the same structural characteristics, a stator formed of an even number of salient pole pairs and a rotor formed of an even number of salient pole pairs. The salient poles of the stator salient pole pairs are arranged opposite the salient poles of the rotor salient pole pairs, with minimal air gaps left between said salient pole pairs, thus leaving the shortest magnetic return paths between the stator salient pole pairs and the rotor salient pole pairs arranged opposite one another, thus satisfying the minimum reluctance principle of the switched reluctance motor. In addition, due to the magnetic isolation between each stator salient pole pair, the performance of the magnetic pole of each stator salient pole pair is controlled by an excitation control power source and changed independently.

7. 发明授权

US09564778B2 Stator core 有权
标题翻译：定子核心
公开(公告)号：US09564778B2
公开(公告)日：2017-02-07
申请号：US12709293
申请日：2010-02-19
申请人： Howard Charles Fulford , Stephen Greetham , Andrew Charlton Clothier , Matthew John Childe
发明人： Howard Charles Fulford , Stephen Greetham , Andrew Charlton Clothier , Matthew John Childe
IPC分类号： H02K1/14 , H02K1/18 , H02K21/18
CPC分类号： H02K1/143 , H02K1/185 , H02K21/185 , H02K2213/03
摘要： A stator core that includes a pair of poles separated by an air gap. Each pole includes a first side adjacent the air gap and a second opposite side remote from the air gap. A pole arc is formed in the first side and an arcuate mounting recess is formed in the second side of each pole. Additionally, an electric machine that includes the stator core.
摘要翻译：定子铁芯，其包括由气隙隔开的一对极。每个极包括邻近气隙的第一侧和远离气隙的第二相对侧。在第一侧形成极弧，并且在每个极的第二侧形成弓形安装凹部。另外，包括定子铁心的电机。

8. 发明授权

US07417347B2 Skeleton type BLDC motor 有权
标题翻译：骨架型BLDC电机
公开(公告)号：US07417347B2
公开(公告)日：2008-08-26
申请号：US11102766
申请日：2005-04-11
申请人： Ho-Jae Lee , Dong-Il Lee , Hyoun-Jeong Shin
发明人： Ho-Jae Lee , Dong-Il Lee , Hyoun-Jeong Shin
IPC分类号： H02K37/16 , H02K21/18
CPC分类号： H02K29/03
摘要： A rotor of a BLDC motor includes: a rotor divided into a north pole and a south pole on the basis of a magnetic pole separating line; and a stator at which the rotor is disposed with an air gap, the stator having a first pole shoe, a second pole shoe and a pair of detent grooves at its inner surface, wherein an air gap forming portion for enlarging an air gap between the rotor and the detent grooves is formed at both end portions of the rotor where the magnetic pole separating line passes, so that the rotor can maintain the motor performance and reduce resonance noise by reducing only higher degree of cogging torque from cogging torque generated when the motor is driven.
摘要翻译： BLDC电动机的转子包括：转子，其基于磁极分离线分为北极和南极; 以及定子，转子设置有气隙，所述定子在其内表面具有第一极靴，第二极靴和一对止动槽，其中气隙形成部分用于扩大所述转子的间隙，转子和止动槽形成在磁极分离线通过的转子的两个端部处，从而转子可以通过仅仅减小齿轮转矩从齿轮转矩产生的较高的齿槽转矩来保持电动机性能并降低谐振噪声被驱动。

9. 发明授权

US06879068B2 Power generator, timepiece and electronic device having the same, and cogging torque adjustment method for the same 失效
标题翻译：发电机，钟表和具有相同的电子装置，以及用于其的齿槽转矩调节方法
公开(公告)号：US06879068B2
公开(公告)日：2005-04-12
申请号：US10361164
申请日：2003-02-06
申请人： Kinya Matsuzawa
发明人： Kinya Matsuzawa
IPC分类号： G04G19/00 , G04B17/00 , G04C10/00 , H02K1/14 , H02K7/065 , H02K21/18 , H02K35/00
CPC分类号： H02K21/185 , G04C10/00 , Y10T29/49009
摘要： Protrusions (260) for adjusting the cogging torque of a rotor (21) are formed on a stator (22) in a small-size power generator (20). Since the protrusions (260) are formed on an inner periphery of a rotor accommodation hole (230) within an angular range of ±45° around a magnetic flux direction of a first magnetic circuit (100) having a smaller magnetic reluctance at a rotation center of the rotor (21), the cogging torque can be effectively reduced. Accordingly, even when the size of components such as an oscillating weight and a power spring is reduced for making a thin timepiece, rotation startability of the rotor can be improved, thus improving power generation efficiency of the small-size power generator.
摘要翻译：用于调节转子（21）的齿槽转矩的突起（260）形成在小型发电机（20）中的定子（22）上。由于在旋转中心具有较小磁阻的第一磁路（100）的磁通方向的±45°的角度范围内，在转子收纳孔（230）的内周形成突起（260）的转子（21），可以有效地减小齿槽转矩。因此，即使为了制造薄型的钟表而减小振动锤，动力弹簧等部件的尺寸，也能够提高转子的旋转启动性，提高小型发电机的发电效率。

10. 发明授权

US06841915B1 Multiple-pole electric motor and method of producing the same 有权
标题翻译：多极电动机及其制造方法
公开(公告)号：US06841915B1
公开(公告)日：2005-01-11
申请号：US09868606
申请日：1999-12-14
申请人： Heinrich-Jochen Blume , Christian Beckhaus , Bernd Eberhardt , Karl-Heinz Mittenbuehler
发明人： Heinrich-Jochen Blume , Christian Beckhaus , Bernd Eberhardt , Karl-Heinz Mittenbuehler
IPC分类号： H02K1/14 , H02K1/12 , H02K5/00 , H02K15/02 , H02K21/18 , H02K37/16
CPC分类号： H02K5/00 , H02K1/12 , Y10T29/49009
摘要： The invention relates to a multi-pole electric motor with a rotor and a stator. Said stator consists of a plurality of coils and stator plates (1, 2, 3, 4) which are magnetically separate from one another and which extend from the coils to the rotor. The stator plates (1, 2, 3, 4) are linked with a non-magnetic metal fixture (11) in an area facing the rotor. According to the method of producing the electromotor described above, the stator plates (1, 2, 3, 4) which are interlinked by one or several webs (5) are produced as one workpiece, the workpiece is linked with the non-magnetic steel fixture (11) and the web(s) between or on the stator sheets (1, 2, 3, 4) is/are severed and/or completely removed.
摘要翻译：本发明涉及具有转子和定子的多极电动机。所述定子由多个线圈和定子板（1,2,3,4）组成，它们彼此磁性地分离并且从线圈延伸到转子。在面向转子的区域中，定子板（1,2,3,4）与非磁性金属固定装置（11）连接。根据上述电动机的制造方法，由一个或多个腹板（5）相互连接的定子板（1,2,3,4）作为一个工件制造，工件与非磁性钢夹具（11）和定子片（1,2,3,4）之间或之上的腹板被切断和/或完全移除。

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