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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
Applicant: MOVING MAGNET TECHNOLOGIES (MMT)
Inventor： Javier Rios-Quesada , Guillaume Loussert , Michaël Delbaere
CPC classification number: H02K41/031 , H02K41/00 , H02K41/02 , H02K41/03 , H02K2201/18
Abstract: 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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公开(公告)号：US20160233734A1
公开(公告)日：2016-08-11
申请号：US15025148
申请日：2014-10-07
Applicant: MOVING MAGNET TECHNOLOGIES (MMT)
Inventor： Stéphane BIWERSI , Lionel BILLET
CPC classification number: H02K3/46 , H02K1/146 , H02K1/2706 , H02K3/04 , H02K3/345 , H02K3/522 , H02K15/0025 , H02K15/03
Abstract: An electrical machine includes a tubular rotor magnetised to have circumferential polar alternations, and a stator including a body that is traversed by a channel having an inner transverse section that substantially corresponds to the outer transverse section of the rotor, the body carrying a plurality of windings, the stator being surrounded by an outer ferromagnetic envelope, the body being extended by three, four or six radial projections made from an electrically insulating material having, in the transverse cross section, a longitudinal core for receiving a winding, the core being extended by a peripheral extension having an outer surface that matches the inner surface of the envelope and covers the wound area. A method for producing such an electrical machine is also provided.
Abstract translation: 电机包括被磁化以具有周向极性交替的管状转子，以及定子，其包括主体，该主体由具有基本上对应于转子的外横截面的内横截面的通道横穿，所述主体承载多个绕组 定子被外部铁磁外壳包围，该主体由电绝缘材料制成的三个，四个或六个径向突起延伸，在横截面中具有用于接收绕组的纵向磁芯，该磁芯由 周边延伸部具有与外壳的内表面相匹配的外表面并覆盖伤口区域。 还提供了一种用于生产这种电机的方法。
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公开(公告)号：US12228468B2
公开(公告)日：2025-02-18
申请号：US17433188
申请日：2020-02-25
Applicant: Moving Magnet Technologies
Inventor： Didier Frachon
Abstract: A position sensor, designed, in particular, for detecting torsion in a steering column, includes a first magnetized magnetic rotor structure comprising a plurality of magnets, two flux-collecting components, which define at least one air gap in which at least one magnetically sensitive element is positioned. Each collecting component has at least one primary collecting zone extended by at least one extension having at least one secondary collecting zone. The secondary collecting zones end in flattened shoes that form the two poles of the air gap. The transverse mid-plane of the air gap intersects at least one of the extensions.
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公开(公告)号：US12222745B2
公开(公告)日：2025-02-11
申请号：US18565705
申请日：2022-06-02
Applicant: Moving Magnet Technologies
Inventor： Michaël Delbaere , Jean-Daniel Alzingre
IPC: G05G5/03 , F16D63/00 , G05G1/08 , G05G5/04 , G05G5/06 , G06F3/01 , G06F3/0362 , H01F7/02 , G06F3/039
Abstract: A control device comprising at least one permanent magnet, and a mechanically guided member for enabling a relative movement between a. a first ferromagnetic structure, b. a second ferromagnetic structure comprising at least one electric coil, the electric coil modifying the magnetization state of the second ferromagnetic structure in accordance with the direction and the amplitude of the electric current flowing in the coil, the device furthermore comprising a position detection means for detecting the relative position of the first and second ferromagnetic structures, and a circuit for driving the supply current of the coil, which varies as a function of the signal delivered by the position detection means.
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公开(公告)号：US20240159570A1
公开(公告)日：2024-05-16
申请号：US18549680
申请日：2022-03-08
Applicant: Moving Magnet Technologies
Inventor： Didier Frachon
Abstract: A magnetic position sensor comprises at least one magnetically sensitive element capable of moving relative to a permanent magnet producing a magnetic field, the magnet of which is embedded in a support made of soft ferromagnetic material having two pole shoes located on either side of the magnet.
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Patent Agency Ranking
公开(公告)号：US20230154295A1
公开(公告)日：2023-05-18
申请号：US17995231
申请日：2021-03-25
Applicant: Moving Magnet Technologies
Inventor： Jean-Daniel Alzingre , Batiste Galmes
Abstract: The present disclosure relates to a passive haptic device comprising a mechanical member moving with respect to a second mechanical member, one of the mechanical members having a plurality of magnetized zones spaced periodically according to a pitch P1, the other of the mechanical members having a second plurality of magnetized zones spaced periodically according to a pitch P2, a force that varies periodically as a function of the relative position of the mechanical members being created by the magnetic interaction between the mechanical members, the magnetic interaction varying according to a period Pt, wherein all the magnetized zones of at least one of the mechanical members are magnetized in the same sense.
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公开(公告)号：US11621659B2
公开(公告)日：2023-04-04
申请号：US17043297
申请日：2019-04-09
Applicant: MOVING MAGNET TECHNOLOGIES
Inventor： Geoffroy Petrement , Guillaume Callerant
Abstract: A method for controlling a polyphase actuator includes supplying each phase with a periodically varying voltage having a periodic sequence of steps Pi that have a constant duration and an amplitude An,i, where n corresponds to the rank of the phase and i to the rank of the step. The method further includes determining a target position PCi of a rotor of the actuator, in order to define a sinusoidal voltage envelope. The actuator further includes a movable member, a stator equipped with electrical coils and a sensor detecting the mechanical position of the movable member with respect to the stator, as well as a microcontroller. The microcontroller determines, at times Tcapteur, a mechanical position of a mechanical member, the microcontroller calculates, at each of the times Tcapteur, a difference between the mechanical position and a target position PCi corresponding to the step Pi and the microcontroller calculates a coefficient k as a function of the difference. The microcontroller also weights the amplitude of a power supply applied to the phases by a coefficient k in order to supply the phases with weighted amplitude voltages An,i*k.
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公开(公告)号：US20210175777A1
公开(公告)日：2021-06-10
申请号：US16770306
申请日：2018-12-05
Applicant: MOVING MAGNET TECHNOLOGIES
Inventor： Lionel BILLET , Michaël DELBAERE , Valentin PREAULT , Gaël ANDRIEUX
Abstract: The disclosure relates to a valve for controlling the circulation of a fluid, having a valve body and a housing containing an electric motor composed of a stator and of a rotor, a needle, a sealing bell and also a fixed screw or a fixed nut. The fixed screw or the fixed nut is secured to the valve body, and the stator is secured to the valve body via the housing. The sealing bell is positioned at the interface between the rotor and the stator in such a way that the screw/nut, the rotor and the needle are within this bell and submerged in the fluid, the stator being isolated from the fluid. Furthermore, the rotor has the function of a nut or of a screw, and has a helical movement imposed by the fixed screw or the fixed nut and drives the needle axially. The motor is a brushless polyphase motor with radial principal magnetic flux.
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公开(公告)号：US20200295641A1
公开(公告)日：2020-09-17
申请号：US16755917
申请日：2018-10-16
Applicant: MOVING MAGNET TECHNOLOGIES
Inventor： Gaël ANDRIEUX , Arnaud HYPPIAS , Laurent HERBEIN
Abstract: 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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30.发明申请公开(公告)号：US20160352168A1
公开(公告)日：2016-12-01
申请号：US15115008
申请日：2015-01-29
Applicant: MOVING MAGNET TECHNOLOGIES (MMT)
Inventor： Stéphane BIWERSI , Javier RIOS-QUESADA , Michaël DELBAERE , Guillaume LOUSSERT , Gael ANDRIEUX
IPC: H02K1/34 , H02K11/215 , H02K33/12
CPC classification number: H02K1/34 , H02K11/215 , H02K33/12 , H02K33/16
Abstract: A linear electromagnetic actuator includes a stator excited by at least one electric coil arranged around an axis of symmetry and two ferromagnetic stator poles positioned axially on either side of the coil, as well as at least two independent moving members, each of the moving members being formed of a ferromagnetic material, where the linear electromagnetic actuator includes at least three magnetized poles arranged inside the coil, with respectively a first magnetized pole positioned in the vicinity of the median plane separating the two moving members and containing the axis of the coil, and a second and third magnetized pole arranged laterally on either side of the moving members, between the moving members and the coil.
Abstract translation: 线性电磁致动器包括由围绕对称轴线布置的至少一个电线圈激励的定子和轴向位于线圈两侧的两个铁磁定子极以及至少两个独立的移动构件，每个移动构件是 由铁磁材料形成，其中线性电磁致动器包括布置在线圈内的至少三个磁化极，分别具有位于分离两个移动构件并包含线圈的轴线的中间平面附近的第一磁化极，以及 第二和第三磁化极，横向地位于移动构件的任一侧，位于移动构件和线圈之间。
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