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21.发明授权Monophase, short travel, electromagnetic actuator having a good electric power/force ratio 失效单相，短行程，电动执行器具有良好的电力/力比
公开(公告)号：US6028499A
公开(公告)日：2000-02-22
申请号：US545572
申请日：1996-02-15
申请人： Claude Oudet , Pierre Gandel
发明人： Claude Oudet , Pierre Gandel
CPC分类号： H01F7/1615 , H02K33/06 , H01F7/122
摘要： A monophase electromagnetic actuator including at least a ferromagnetic part integral with a member movable along a direction Y, a fixed stator part made of soft magnetic material and including at least on electrical coil, and a thin transversely magnetized permanent magnet. The fixed stator part and the ferromagnetic part define between each other at least two air gaps arranged symmetrically with respect to the medial plane perpendicular to the axis of displacement of the movable member and passing through the middle of the permanent magnet. The length of the ferromagnetic part is approximately equal to the length of the permanent magnet.
摘要翻译： PCT No.PCT / FR94 / 00579 Sec。 371日期：1996年2月15日 102（e）日期1996年2月15日PCT 1994年5月16日PCT公布。 WO94 / 27303 PCT出版物 日期：1994年11月24日一种单相电磁致动器，其至少包括与沿Y方向移动的部件一体的铁磁部件，由软磁性材料制成的固定定子部件，至少包括电线圈，以及薄的横向磁化永磁体。 固定的定子部分和铁磁部分彼此间限定至少两个相对于垂直于可移动部件的位移轴线并且穿过永磁体的中间的中间平面对称布置的气隙。 铁磁部分的长度近似等于永磁体的长度。
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公开(公告)号：US11977406B2
公开(公告)日：2024-05-07
申请号：US17633514
申请日：2020-08-06
CPC分类号： G05G5/03 , G05G1/08 , G05G5/06 , G05G9/047 , H01H19/11 , G05G2009/04707 , G05G2009/04781
摘要： A passive haptic interface includes a first element which is rotatably movable about an axis or translatably movable along an axis, the first movable element rotating or moving opposite a second fixed element. The first movable element has a first plurality of magnetic poles spaced periodically at a pole pitch Ps and in the direction of movement, and the second fixed element has a second plurality of magnetic poles periodically spaced at a pole pitch Pr and in the direction of movement, where Ps and Pr are different numbers. A periodic stress is created by the magnetic interaction between the first movable element and the second fixed element in a period Pt. The pole pitches Ps and Pr are chosen such that Pt is strictly less than the smallest of the pitches Ps and Pr.
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公开(公告)号：US11967870B2
公开(公告)日：2024-04-23
申请号：US16755917
申请日：2018-10-16
发明人： Gaël Andrieux , Arnaud Hyppias , Laurent Herbein
CPC分类号： H02K21/125 , H02K1/145 , H02K15/022 , H02K2201/12
摘要： The disclosure relates to an electric machine having a rotor including a set of permanent magnets and a stator including a stator strip made of a soft ferromagnetic material, the strip supporting a coil body having a single discontinuity, the coil body supporting a plurality of wire coils so as to form a polyphase coil stator assembly of the toroidal type, wherein the strip has a single discontinuity and has at least one partial cut at regular intervals between two consecutive wire coils.
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公开(公告)号：US11362555B2
公开(公告)日：2022-06-14
申请号：US16500304
申请日：2018-04-03
摘要： The disclosure relates to a rotor for an electrical machine having internal permanent magnets including a yoke consisting of a stack of sheets defining a plurality of recesses for receiving parallelepipedal permanent magnets, the recesses being surrounded by magnetically saturated external transverse isthmuses, by radial isthmuses, lateral isthmuses and oblique isthmuses, wherein the magnets are assembled in pairs of magnets magnetized in the same direction and perpendicular to the radial direction of the radial isthmuses arranged between the coupled magnets, the radial isthmuses having a thickness of less than 5% of the diameter of the rotor, and the perimeter of the cross section of the rotor is formed by a succession of curved profiles, between two consecutive pairs of magnets, and tangential linear profiles at the external transverse isthmuses. The disclosure also relates to the application of such a rotor for creating a motor, in particular a motor for a turbo compressor, or an electrical generator.
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公开(公告)号：US11264846B2
公开(公告)日：2022-03-01
申请号：US16498661
申请日：2018-03-29
发明人： Gael Andrieux , Gilles Tonnelier , Pierre Marchal
IPC分类号： H02K1/14
摘要： A stator for an electric machine having a plurality of radially extending teeth, supported by an outer annular yoke radial to the teeth, at least part of the teeth supporting a coil and the outer annular yoke having flutes of partially cylindrical shape opening towards the teeth, at least part of the teeth each having, at their end, on the side of the outer annular yoke, a protuberance of partially cylindrical shape, the protuberance being held in the flute by contact points so that at least one part of the teeth performs a relative movement having a degree of rotational and/or translational freedom relative to the annular yoke.
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公开(公告)号：US20220021289A1
公开(公告)日：2022-01-20
申请号：US17295737
申请日：2019-11-29
摘要： An adjustable force device comprises a member that is mechanically guided for allowing a displacement according to a predetermined trajectory, and means for magnetically indexing the displacement by the magnetic interaction between a first ferromagnetic structure and a second ferromagnetic structure integral with a magnet, wherein the magnet is at least partially surrounded by an electric coil that modifies the magnetization of the permanent magnet according to the direction and the amplitude of the electric current flowing in the coil.
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公开(公告)号：US20200076254A1
公开(公告)日：2020-03-05
申请号：US16500304
申请日：2018-04-03
摘要： The disclosure relates to a rotor for an electrical machine having internal permanent magnets including a yoke consisting of a stack of sheets defining a plurality of recesses for receiving parallelepipedal permanent magnets, the recesses being surrounded by magnetically saturated external transverse isthmuses, by radial isthmuses, lateral isthmuses and oblique isthmuses, wherein the magnets are assembled in pairs of magnets magnetized in the same direction and perpendicular to the radial direction of the radial isthmuses arranged between the coupled magnets, the radial isthmuses having a thickness of less than 5% of the diameter of the rotor, and the perimeter of the cross section of the rotor is formed by a succession of curved profiles, between two consecutive pairs of magnets, and tangential linear profiles at the external transverse isthmuses. The disclosure also relates to the application of such a rotor for creating a motor, in particular a motor for a turbo compressor, or an electrical generator.
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公开(公告)号：US20190229587A1
公开(公告)日：2019-07-25
申请号：US16337192
申请日：2017-09-28
IPC分类号： H02K11/215 , F02D11/10 , F02D9/10 , H02K11/38 , H02K7/116
摘要： The disclosure presents a geared motor unit including a housing having an electric motor formed of a coiled stator assembly and of a magnetized rotor, the housing further including a printed circuit board for connecting and controlling the motor, a movement-reducing gear train, a sensor magnet and a magnetosensitive probe. The gear train includes a toothed movement output gear, the sensor magnet being ring-shaped and being rigidly connected to the output gear. An output gear is extended on either side of the sensor magnet by two guides cooperating with the two opposite walls of the housing; a ring-shaped magnet surrounds the axis of rotation of the output gear; a printed circuit board includes a controller controlling the motor and extends up to the vicinity of the output gear. The printed circuit board includes, in the area located in the vicinity of the output gear, the magnetosensitive probe which is connected directly, electrically and mechanically, to the area and is located axially or radially facing a ring-shaped magnet.
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公开(公告)号：US20180301263A1
公开(公告)日：2018-10-18
申请号：US15767413
申请日：2016-10-20
摘要： A linear electromagnetic actuator has a stroke c, with at least one stable position in one of the ends of the stroke, and includes: an armature made of a soft magnetic material, the armature being movable in an axial direction Y and having a length Hm in the direction Y, the armature having a symmetrical shape at the axis Y, and a stationary stator yoke made of a soft magnetic material and holding at least one electric coil. The actuator also includes at least one stationary permanent magnet that is magnetized along a transverse axis X perpendicular to the direction Y. The magnet is transversely placed between the movable armature and the electric coil. The magnet has a length Ha in the direction Y. The stationary yoke and the movable armature define therebetween at least one axial air gap. Ha+c is of the order of magnitude of Hm. The length Hm is such that 0.9×(Ha+c)
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公开(公告)号：US09935536B2
公开(公告)日：2018-04-03
申请号：US14376506
申请日：2013-02-14
CPC分类号： H02K41/031 , H02K41/00 , H02K41/02 , H02K41/03 , H02K2201/18
摘要： The present disclosure relates to an electromagnetic actuator of the type producing a force due to the current that remains substantially constant over the entirety of its useful travel Y and that has a low force in the absence of current, including at least one stator structure, at least one electrical supply coil, and a moving member, the stator structure having, on the one hand, a central pole running perpendicular to the direction of the travel Y and having a width YC1 in the direction of the travel and terminating at its end in a width YC2 that is greater than or equal to the travel Y of the moving member, YC2 being greater than YC1, and, on the other hand, two lateral poles having widths YL1 in the direction of the travel and terminating at their end in a width YL2 greater than YL1.
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