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公开(公告)号：US11581782B2
公开(公告)日：2023-02-14
申请号：US16564129
申请日：2019-09-09
发明人： Tadashi Sawata , Andrew Page
摘要： An electric propulsion system, comprising a propeller and a motor arranged to rotate the propeller, the motor comprising an axial flux motor comprising a rotor disc and a stator disc mounted in face-to-face relationship with an air gap defined therebetween, the rotor disc driven to rotate relative to the stator disc to cause magnetic flux in the air gap to cause rotation of the propeller, characterised in that the propeller is directly attached to the rotor disc to rotate with the rotor disc.
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公开(公告)号：US08004127B2
公开(公告)日：2011-08-23
申请号：US12150003
申请日：2008-04-24
申请人： Steven D. Potter
发明人： Steven D. Potter
CPC分类号： H02K41/03 , H02K19/103 , H02K37/08
摘要： A rotary reluctance motor includes a set of inner disks each having an inner diameter root, an outer diameter free end, and a plurality of alternating high permeability teeth and low permeability material segments. A set of outer disks is interleaved with the inner disks to form a disk stack. Each outer disk has an outer diameter root, an inner diameter free end, and a plurality of alternating high permeability teeth and low permeability material segments. The inner and outer disks are configured to bear against and support each other in response to axial magnetic forces. Flux return portions are disposed axially adjacent the disks at each end of the disk stack. A coil is associated with the roots of one of the sets of disks and configured to provide axial flux through the disk stack to rotate one set of disks with respect to the other set of disks.
摘要翻译： 旋转磁阻电动机包括一组内圆盘，每个内圆盘具有内径根，外径自由端和多个交替的高磁导率齿和低磁导率材料段。 一组外部磁盘与内部磁盘交错以形成磁盘堆栈。 每个外盘具有外直径根部，内径自由端和多个交替的高渗透性齿和低渗透性材料段。 内盘和外盘构造成响应于轴向磁力承受彼此并相互支撑。 磁通返回部分在磁盘堆叠的每个端部处轴向地布置在磁盘附近。 线圈与所述一组盘的根相关联并且被配置为提供穿过所述盘堆的轴向通量，以相对于另一组盘旋转一组盘。
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公开(公告)号：US07242123B2
公开(公告)日：2007-07-10
申请号：US11411112
申请日：2006-04-26
申请人： Makoto Miyawaki
发明人： Makoto Miyawaki
CPC分类号： H02K26/00
摘要： An actuator maintains high efficiency, can react to an increase in pole, has a high part fit, and can be manufactured at low cost while it is thinned. The actuator includes a magnet which is formed in a ring shape, in which at least one surface perpendicular to a central axis thereof is divided in a peripheral direction and alternately plane-magnetized in different poles; a stator including a plurality of magnetic pole teeth opposed to the magnetized surface of the magnet; a rotor, which is held to be rotatable about a rotational axis as a center, includes a disk portion whose surface perpendicular to the rotational axis is bonded to the magnet, and is made of a soft magnetic material; and a coil, which is located on substantially the same surface as that of the magnet, is fixed to the stator, and excites the stator and the disk portion.
摘要翻译： 执行器保持高效率，可以对极的增加做出反应，具有高的零件配合，并且可以在成本较低的情况下制造成薄。 致动器包括形成为环形的磁体，其中垂直于其中心轴线的至少一个表面沿圆周方向分割，并且以不同的极点交替平面磁化; 定子，其包括与所述磁体的磁化表面相对的多个磁极齿; 被保持为能够以旋转轴为中心旋转的转子包括：与旋转轴垂直的面与磁铁接合并由软磁材料制成的盘部; 并且位于与磁体大致相同的表面上的线圈被固定到定子，并激励定子和盘部。
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公开(公告)号：US5925965A
公开(公告)日：1999-07-20
申请号：US709105
申请日：1996-09-06
申请人： Yue Li , Jerry D. Lloyd
发明人： Yue Li , Jerry D. Lloyd
CPC分类号： H02K16/04 , H02K19/103
摘要： An axial flux reluctance machine including a rotor formed from a wound tape of paramagnetic material, a first stator formed from a wound tape of paramagnetic material and a similarly constructed second stator, where the first and the second stators define stator poles and wherein the stator poles of the first stator are not completely aligned with the stator poles of the second stator. Also a reluctance machine system for energizing the axial flux reluctance machine and methods for forming the wound tape rotor and stators.
摘要翻译： 一种轴向通量磁阻电机，包括由顺磁性材料的卷绕带形成的转子，由顺磁性材料的缠绕带形成的第一定子和类似构造的第二定子，其中第一和第二定子限定定子极，并且其中定子极 的第一定子不与第二定子的定子极完全对准。 还有用于激励轴向通量磁阻电机的磁阻电机系统以及用于形成磁带转子和定子的方法。
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5.发明授权
公开(公告)号：US5825106A
公开(公告)日：1998-10-20
申请号：US800764
申请日：1997-02-13
申请人： Daho Taghezout
发明人： Daho Taghezout
摘要： An electromecanic transducer comprises a stator 4 formed of three parts 6, 8 and 18 each presenting merlons or teeth 52, 54 and 60 superposed to a multipolar magnet 34 of rotor 30. Three statoric magnetic poles 10, 12 and 20 are situated in a same statoric plane and define, together with two branches 22 and 24 each containing a coil 26 and 28, two principal magnetic circuits of the transducer. The transducer is particularly suitable for a step functioning, in particular when a relatively high number of steps per turn is desired.
摘要翻译： 电动换能器包括由三个部分6,8和18形成的定子4，每个部分具有与转子30的多极磁体34重叠的mer子或齿52,54和60.三个定子磁极10,12和20位于同一个 并且与每个包含线圈26和28的两个分支22和24一起限定换能器的两个主要磁路。 传感器特别适用于台阶功能，特别是当需要相对较多数量的步进时。
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公开(公告)号：US4755703A
公开(公告)日：1988-07-05
申请号：US27387
申请日：1987-03-18
申请人： Kazuo Ueno
发明人： Kazuo Ueno
CPC分类号： H02K37/10
摘要： The invention relates to improvement of a motor with a rotor including a permanent magnet. The motor comprises a yoke of soft magnetic material, a plurality of field poles each having a field core of semi-hard magnetic material and a pole piece of soft magnetic material, a plurality of coils wound around the field cores respectively, and a rotor including a permanent magnet. In this constitution, utilizing action of the minor loop of the field cores of semi-hard magnetic material, the residual magnetic flux density of the plurality of field cores is controlled in sequence and the shifting magnetic field is induced thereby the magnetic poles of the rotor are attracted in sequence so as to move the rotor.
摘要翻译： 本发明涉及具有包括永磁体的转子的电动机的改进。 电动机包括软磁性材料的轭，多个具有半硬磁性材料的磁场的场磁极和软磁性材料的极片，分别缠绕在磁场磁芯上的多个线圈，以及包括 永久磁铁。 在该结构中，通过利用半硬磁性材料的磁场磁芯的小环的动作，依次控制多个励磁磁芯的剩余磁通密度，从而感应换档磁场，从而转子的磁极 被顺序吸引，以便使转子移动。
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公开(公告)号：US4201929A
公开(公告)日：1980-05-06
申请号：US877101
申请日：1978-02-13
申请人： Roland Sudler , Walter Happel
发明人： Roland Sudler , Walter Happel
摘要： A single phase stepping motor, particularly for clocks, with a rotor with several pole teeth, of which each pole tooth comprises a main pole and an auxiliary pole formed on the latter, and with a stator, the latter being made of two stator parts connected with one another via a bridge part, the latter carrying the excitation winding, of which each stator part on its free end transfers into an equal or smaller number (in comparison to the rotor pole number) of stator pole teeth, the stator pole teeth being directed towards the face side of the rotor, as well as a permanent magnetic circuit arranged between the stator pole teeth by means of which circuit the rest position of the rotor is determined with the unexcited condition of the stator. Each auxiliary pole comprises a projection extending in the circumferential direction in the area of the edge of the rotor and the permanent magnetic circuit comprises at least one permanent magnet, the latter being arranged beyond the circumference of the rotor and extending with its pole axis approximately tangential to the rotor such that a part of the magnetic lines of force close across the circumferential edge zone of a main pole and auxiliary pole of the rotor.
摘要翻译： 单相步进电机，特别是时钟，具有多个极齿的转子，其中每个极齿包括形成在其上的主极和辅助极，并且具有定子，该定子由两个定子部分连接 彼此通过桥接部分，后者承载励磁绕组，其自由端上的每个定子部分转移到等于或小于定子极齿的数量（与转子极数相比），定子极齿为 指向转子的表面侧，以及设置在定子极齿之间的永久磁路，借助于该电路，转子的静止位置由定子的未激励状态确定。 每个辅助极包括在转子的边缘区域中沿圆周方向延伸的突起，并且永磁回路包括至少一个永磁体，该永磁体设置在转子的圆周之外，并且其极轴近似切向 使得一部分磁力线接近转子的主极和辅助极的圆周边缘区域。
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公开(公告)号：US10340753B2
公开(公告)日：2019-07-02
申请号：US15519816
申请日：2014-10-27
发明人： Sehyun Rhyu , Youngkyoun Kim , Jungmoo Seo , Jeongjong Lee , Insoung Jung
IPC分类号： H02K1/17 , H02K1/18 , H02K37/08 , H02K1/02 , H02K1/12 , H02K21/24 , H02K1/14 , H02K3/52 , H02K41/03
摘要： The described technology relates to a stator of a planar type motor and a planar type motor using the same, which are easy to manufacture and are capable of reducing core losses, thereby maximizing motor performance. First cores that are difficult to form by stacking electrical steel plates are formed of soft magnetic powders, and second cores that are formed by stacking electrical steel plates having the same size are arranged in a region where a vortex is concentrated, thereby allowing easy manufacture and being capable of maximizing the performance of the planar type motor.
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10.发明授权公开(公告)号：US10177641B2
公开(公告)日：2019-01-08
申请号：US15219507
申请日：2016-07-26
申请人： THE BOEING COMPANY
摘要： A stator assembly for an electric motor includes a drive plate, a first magnetic core and a second magnetic core. A first core slot is formed in the first magnetic core and a second slot is formed in the second magnetic core. The first and second magnetic cores each include two elongated members joined at one end by a base member which are defined by the respective core slots. The two elongated members extend from the base member substantially parallel to each other toward the drive plate. A stator coil is wound through the first core slot and the second core slot. An electrical current flowing in the stator coil generates a magnetic field about the stator coil that is absorbed by the first magnetic core and the second magnetic core to generate a magnetic flux in each of the magnetic cores that magnetically attracts the drive plate.
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