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公开(公告)号：US09214849B2
公开(公告)日：2015-12-15
申请号：US13891024
申请日：2013-05-09
Applicant: Lin Engineering
Inventor： Ted T. Lin
Abstract: A stepper motor is provided in which a permanent ring magnet is sandwiched in an outer part of the stator winding assembly located far from the gap between rotor and stator teeth, so that magnetic flux in the gap is dominated by the Ampere-turns of energized stator coils and therefore more easily controlled for reduced vibration at low stepping speeds. The rotor need not contain any permanent disk magnet. If one is provided, it can be completely embedded within the rotor and merely supplement the primary flux from the stator to enhance torque. In most cases, where the rotor lacks any permanent magnet, the motor's axial shaft can have a larger diameter and may, together with the rotor, form a linear actuator.
Abstract translation: 提供了一种步进电动机，其中永磁环磁体夹在位于远离转子和定子齿之间的间隙的定子绕组组件的外部，使得间隙中的磁通量主要由通电定子的安匝数 线圈，因此更容易控制，以便在低步进速度下减少振动。 转子不需要任何永磁盘磁铁。 如果设置了它，则可以将其完全嵌入到转子内，并且仅仅补偿来自定子的初级通量以增加扭矩。 在大多数情况下，在转子缺少任何永磁体的情况下，电动机的轴向轴可以具有较大的直径，并且可以与转子一起形成线性致动器。
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公开(公告)号：US08970083B2
公开(公告)日：2015-03-03
申请号：US13124851
申请日：2009-09-08
Applicant: Steve Zong-Ping Zhao
Inventor： Steve Zong-Ping Zhao
CPC classification number: H02K37/20 , H02K37/04 , H02K2213/03
Abstract: An improved motor (90) broadly including a first member (30) and a second member (20) mounted for movement relative to one another. The first member has a plurality of poles (32) spaced substantially equidistantly. The second member has a plurality of arms (22). Each arm includes a plurality of fingers (27), a permanent magnet (29), and a coil (25). The fingers are arranged such that their distal end generally faces toward the poles on the first member. Each permanent magnet has a width that is greater than the pole spacing. Each arm is associated with one of a number of phases. The fingers of the arms within a particular phase are arranged such that they simultaneously align with respective poles when the first and second members are in one position relative to one another.
Abstract translation: 一种改进的马达（90），其广泛地包括安装成相对于彼此移动的第一构件（30）和第二构件（20）。 第一构件具有基本上等距离开的多个极（32）。 第二构件具有多个臂（22）。 每个臂包括多个指状物（27），永磁体（29）和线圈（25）。 手指被布置成使得它们的远端大致面向第一构件上的杆。 每个永磁体的宽度大于极间距。 每个臂与多个阶段中的一个相关联。 在特定阶段中的臂的手指被布置成使得当第一和第二构件相对于彼此处于一个位置时，它们与相应的杆同时对齐。
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公开(公告)号：US20140333159A1
公开(公告)日：2014-11-13
申请号：US13891024
申请日：2013-05-09
Applicant: Lin Engineering
Inventor： Ted T. Lin
Abstract: A stepper motor is provided in which a permanent ring magnet is sandwiched in an outer part of the stator winding assembly located far from the gap between rotor and stator teeth, so that magnetic flux in the gap is dominated by the Ampere-turns of energized stator coils and therefore more easily controlled for reduced vibration at low stepping speeds. The rotor need not contain any permanent disk magnet. If one is provided, it can be completely embedded within the rotor and merely supplement the primary flux from the stator to enhance torque. In most cases, where the rotor lacks any permanent magnet, the motor's axial shaft can have a larger diameter and may, together with the rotor, form a linear actuator.
Abstract translation: 提供了一种步进电动机，其中永磁环磁体夹在位于远离转子和定子齿之间的间隙的定子绕组组件的外部，使得间隙中的磁通量主要由通电定子的安匝数 线圈，因此更容易控制，以便在低步进速度下减少振动。 转子不需要任何永磁盘磁铁。 如果设置了它，则可以将其完全嵌入到转子内，并且仅仅补偿来自定子的初级通量以增加扭矩。 在大多数情况下，在转子缺少任何永磁体的情况下，电动机的轴向轴可以具有较大的直径，并且可以与转子一起形成线性致动器。
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公开(公告)号：US20100289359A1
公开(公告)日：2010-11-18
申请号：US12695155
申请日：2010-01-27
Applicant: Ara Knaian , Neil Gershenfeld , Maxim Lobovsky
Inventor： Ara Knaian , Neil Gershenfeld , Maxim Lobovsky
CPC classification number: H02K41/03 , H02K21/04 , H02K21/046 , H02K21/44 , H02K33/00 , H02K37/20 , H02K41/06
Abstract: An electropermanent magnet-based motor includes a stator having at least one electropermanent magnet, at least one coil around the electropermanent magnet configured to pass current pulses that affect the magnetization of the magnet, and a rotor that is movable with respect to the stator in response to changes in the magnetization of the electropermanent magnet. A wobble motor has a stator with a centrally-located core from which arms radiate outward, an electropermanent magnet and coil on each arm, and a rotor exterior to the stator such that the rotor can rotate around the stator arms. A rotary motor has a centrally-located rotor that rotates about its axis and a stator exterior to the rotor such that the rotor may rotate within the stator arms, the stator including an anteriorly-located stator core from which stator arms radiate inward toward the rotor, and an electropermanent magnet and coil on each stator arm.
Abstract translation: 电永磁体电动机包括具有至少一个电永磁体的定子，围绕电永磁体的至少一个线圈，其被配置为传递影响磁体的磁化的电流脉冲，以及响应于相对于定子可移动的转子 以改变电永磁体的磁化。 摆动马达具有定子，其具有中心定位的芯，臂从其向外辐射，每个臂上的电永磁体和线圈，以及定子外部的转子，使得转子可绕定子臂旋转。 旋转电动机具有中心定位的转子，其转子围绕其轴线旋转，定子在转子外部转动，使得转子可在定子臂内旋转，定子包括位于前部的定子铁心，定子臂从该定子芯向内朝向转子 和每个定子臂上的电永磁体和线圈。
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公开(公告)号：US07339292B2
公开(公告)日：2008-03-04
申请号：US10939873
申请日：2004-09-13
Applicant: Kazuo Ohnishi , Shoji Ohiwa , Yasuaki Motegi
Inventor： Kazuo Ohnishi , Shoji Ohiwa , Yasuaki Motegi
IPC: H02K37/06
Abstract: A multi-polar rotary machine comprises a and a cylindrical outer rotor arranged concentrically with the stator and with an air gap therebetween. The stator has two splitted stator elements and a ring shaped permanent magnet held between the stator elements and magnetized so as to form N and S poles in the axial direction of the stator. Small axially separated stator teeth A and Ā and B and B are formed on the outer peripheral surface of the splitted stator elements. Stator windings for A phase and B phase are wound around the respective stator elements. The small stator teeth A, Ā, B and B are circumferentially shifted from corresponding small rotor teeth by a ¼ pitch of the small stator teeth, respectively. Each of the stator and rotor is formed of pressed powder consisting of soft magnetic material, and of resin and/or inorganic material. A ratio of a thickness of the small stator teeth Ā in the axial direction of the stator to a thickness of the small stator teeth A in the axial direction of the stator or a ratio of a thickness of the small stator teeth B in the axial direction of the stator to a thickness of the small stator teeth B in the axial direction of the stator is set to a value smaller than 1 so as to equalize substantially in mean permeance both small stator teeth A and Ā or B and B to each other.
Abstract translation: 多极旋转机器包括与定子同心地布置并且在其之间具有气隙的圆柱形外转子。 定子具有两个分离的定子元件和保持在定子元件之间并被磁化的环形永磁体，以便在定子的轴向上形成N和S极。 在分裂的定子元件的外周面上形成小轴向分离的定子齿A和A以及
B和B。 用于A相和B相的定子绕组围绕相应的定子元件缠绕。 小定子齿A，A，O OYYLE =“SINGLE”> B和B分别从相应的小转子齿周向地移位小定子齿的1/4间距。 定子和转子中的每一个由软磁材料和树脂和/或无机材料组成的压制粉末形成。 小定子齿A在定子的轴向上的厚度与小定子齿A在定子的轴向上的厚度的比率或小定子齿的厚度的比率 B和B。 -
Patent Agency Ranking
公开(公告)号：US20070090699A1
公开(公告)日：2007-04-26
申请号：US11561688
申请日：2006-11-20
Applicant: Kazuo Ohnishi , Shoji Ohiwa , Yasuaki Motegi
Inventor： Kazuo Ohnishi , Shoji Ohiwa , Yasuaki Motegi
Abstract: A multi-polar rotary machine comprises a cylindrical outer rotor arranged concentrically with the stator and with an air gap therebetween. The stator has two spaced stator elements and a ring shaped permanent magnet held between the stator elements and magnetized so as to form N and S poles in the axial direction of the stator. Small axially separated stator teeth A and A and B and B are formed on the outer peripheral surface of the spaced stator elements. Stator windings for A phase and B phase are wound around the respective stator elements. The small stator teeth A, A, B and B are circumferentially shifted from corresponding small rotor teeth by a ¼ pitch of the small stator teeth, respectively. Each of the stator and rotor is formed of pressed powder comprising a soft magnetic material at least one of a resin and an inorganic material.
Abstract translation: 多极旋转机器包括与定子同心地布置并在其间具有气隙的圆柱形外转子。 定子具有两个间隔开的定子元件和固定在定子元件之间并被磁化的环形永磁体，以便在定子的轴向上形成N极和S极。 小轴向分离的定子齿A和
A，并且 B和B形成在间隔开的定子元件的外周表面上。 用于A相和B相的定子绕组围绕相应的定子元件缠绕。 小定子齿A， A， B和B分别从相应的小转子齿周向偏移小定子齿的1/4间距。 定子和转子中的每一个由包括由至少一种树脂和无机材料构成的软磁性材料的压制粉末形成。 -
公开(公告)号：US20070024127A1
公开(公告)日：2007-02-01
申请号：US11460496
申请日：2006-07-27
Applicant: Hiromu YASUDA
Inventor： Hiromu YASUDA
Abstract: A driving apparatus includes a first magnet, second magnet, stator, first coil, second coil, first bearing, second bearing and rotor. The first and second magnets respectively have a magnetized portion in which S pole and N pole are alternately magnetized. The rotor has a magnetic pole portion opposite to each magnetized portion. The stator fixes the first magnet and second magnet to the same axis to rotatably support the rotor. The first coil magnetically excites a portion where the magnetic pole portion of the rotor faces the first magnet. The second coil magnetically excites a portion where the magnetic pole portion of the rotor faces the second magnet. Thereby, a driving apparatus is provided which stabilizes the quality by simplifying the configuration of a rotor and makes it possible to realize high speed of rotation and improvement of response speed by decreasing the moment of inertia of a rotor.
Abstract translation: 驱动装置包括第一磁体，第二磁体，定子，第一线圈，第二线圈，第一轴承，第二轴承和转子。 第一和第二磁体分别具有S极和N极交替磁化的磁化部分。 转子具有与每个磁化部分相对的磁极部分。 定子将第一磁体和第二磁体固定在同一轴线上以可转动地支撑转子。 第一线圈磁性地激励转子的磁极部分面对第一磁体的部分。 第二线圈磁性地激励转子的磁极部分面对第二磁体的部分。 因此，通过简化转子的结构，提供了使质量稳定的驱动装置，通过减小转子的转动惯量，可以实现高速旋转和提高响应速度。
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公开(公告)号：US06700271B2
公开(公告)日：2004-03-02
申请号：US09914214
申请日：2001-09-27
Applicant: Andrej Detela
Inventor： Andrej Detela
IPC: H02K1900
Abstract: A hybrid synchronous motor comprising a rotor and stators, wherein the stator has at least one assembly (7) having a structure in which ferromagnetic rings (2, 3) formed with cogs on the both inner and outer circumferences thereof, are arranged coaxially, and a coil winding (8) is wound on the assembly (7) so as to be positioned between cogs. The hybrid synchronous motor exhibits a high magnetic flux density in the air gap as the result of transverse magnetic flux of the permanent magnets combined with longitudinal magnetic flux of the coils and high active surface at the air gap due to double (inner and outer) air gaps. Further, since it contains only a single set of stator coils and it has merely a small number of assembling parts and conventional techniques of fabrication may be applied, the motor is cheap in construction. Furthermore, the motor exhibits an excellent energy efficiency due to only small ohmic losses in the coils.
Abstract translation: 1.一种混合式同步电动机，包括转子和定子，其中所述定子具有至少一个组件（7），所述组件（7）具有在其内周和外周上形成有齿的铁磁环（2,3）同轴布置的结构，以及 线圈绕组（8）缠绕在组件（7）上，以便定位在齿轮之间。 混合同步电动机由于双重（内，外）空气由于永久磁铁的横向磁通量与线圈的纵向磁通量和气隙高活性表面的横向磁通量而在气隙中表现出高磁通密度 差距 此外，由于它仅包含一组定子线圈，并且仅具有少量的组装部件，并且可以应用传统的制造技术，所以电机的结构便宜。 此外，由于线圈中只有小的欧姆损耗，电动机表现出优异的能量效率。
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公开(公告)号：US06304010B1
公开(公告)日：2001-10-16
申请号：US08683236
申请日：1996-07-18
Applicant: Tsuneo Sugiura
Inventor： Tsuneo Sugiura
IPC: H02K3700
CPC classification number: H02K37/20
Abstract: A hybrid-type stepping comprising inner and outer stator yokes on a fixed shaft, a barrel rotor between the inner and outer stator yokes, and bobbin-wound coils in coil slots formed on the outer and inner circumferences of the stator yokes, whereby coil winding operation is facilitated while a high torque is achieved.
Abstract translation: 混合型步进包括固定轴上的内外定子轭，在内外定子轭之间的桶转子和形成在定子轭的外圆周和内圆周上的线圈槽中的绕管线圈，由此线圈绕组 在实现高扭矩的同时便于操作。
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公开(公告)号：US5886442A
公开(公告)日：1999-03-23
申请号：US534115
申请日：1995-09-26
Applicant: Sanshiro Ogino , Keiichiro Asaoka
Inventor： Sanshiro Ogino , Keiichiro Asaoka
IPC: H01F7/122 , H01F7/16 , H02K21/38 , H02K25/00 , H02K29/00 , H02K33/02 , H02K37/20 , H02K1/17 , H02K1/00
Abstract: A magnetic attraction driving engine utilizing a permanent magnet is provided with a permanent magnet, an electromagnet formed by winding a coil on a magnetic core with one end thereof stuck to one magnetic pole end of the permanent magnet, an excitation controller for exciting the electromagnet to change a state of magnetic fluxes in the vicinity of the magnetic pole end of the permanent magnet, a movable member having magnetic attractivity set in the vicinity of the magnetic pole end of the permanent magnet by being supported and guided so as to be capable of coming close to or separating away from the permanent magnet and a returning force applying member for causing by pressure the movable member to retreat against a magnetic attracting force and move back and forth by changing a magnetic attracting force of the permanent magnet.
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