公开(公告)号：US20210111594A1

公开(公告)日：2021-04-15

申请号：US16498661

申请日：2018-03-29

Applicant: MOVING MAGNET TECHNOLOGIES

Inventor： Gaël ANDRIEUX ,  Gilles TONNELIER ,  Pierre MARCHAL

IPC: H02K1/14

Abstract: 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.

公开(公告)号：US20210021216A1

公开(公告)日：2021-01-21

申请号：US17043297

申请日：2019-04-09

Applicant: MOVING MAGNET TECHNOLOGIES

Inventor： Geoffroy PETREMENT ,  Guillaume CALLERANT

IPC: H02P8/00 ,  H02P8/16

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.

公开(公告)号：US10756602B2

公开(公告)日：2020-08-25

申请号：US16337192

申请日：2017-09-28

Applicant: MOVING MAGNET TECHNOLOGIES

Inventor： Mathieu Watrin ,  Christophe Adler ,  Damien Laforge ,  Gaël Andrieux

IPC: H02K11/215 ,  F02D11/10 ,  H02K7/116 ,  H02K11/38 ,  F02D9/10

Abstract: 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.

公开(公告)号：US20190285190A1

公开(公告)日：2019-09-19

申请号：US16463807

申请日：2017-11-20

Applicant: MOVING MAGNET TECHNOLOGIES

Inventor： Samuel EQUOY ,  Gaël ANDRIEUX

IPC: F16K31/04 ,  H02K7/116 ,  F16K1/22 ,  F16K27/02 ,  H02K1/27 ,  H02K11/215

Abstract: The disclosure relates to a motorised air circulation valve including a gear motor, a valve body, and a rotary shaft provided with a shutter. The rotary shaft is rotated by the gear motor, where gear motor includes a set of reduction gears, a brushless electric motor formed by a rotor having N pairs of magnetised poles connected to a pinion of the set of reduction gears, and the pinion drives an output wheel rigidly connected to the rotary shaft. The electric motor includes a stator part having at least two coils, the stator part having two angular sectors, alpha1 and alpha2, of respective radii R1 and R2, with R1 being greater than R2, and the center of the radii and the angular sectors being defined relative to the center of rotation of the rotor. The angular sector alpha1 is defined by the angular deviation between the axes of the first and last coils considered in a circumferential direction of the motor, the angular sector alpha1 is less than 180° and includes the coils, the sector alpha2 is devoid of a fully fitted coil, an end of the gear motor defines a side of the gear motor, and the angular sector alpha2 of the stator part is positioned facing the side.

公开(公告)号：US20190280545A1

公开(公告)日：2019-09-12

申请号：US16461229

申请日：2017-11-15

Applicant: MOVING MAGNET TECHNOLOGIES

Inventor： Gilles TONNELIER ,  Gaël ANDRIEUX ,  Jean LE BESNERAIS ,  Quentin SOURON

IPC: H02K3/20 ,  H02K1/14

Abstract: The disclosure relates to a high-speed electric machine, having a speed higher than 20,000 rpm, including a rotor having 1 or 2 pairs of magnetized poles, and an enhanced stator which has an outer diameter that is larger than 18 millimeters and which has 3 or 6 straight teeth extending radially and borne by a one-piece peripheral annular collar. At least a portion of the teeth bear coils, and the teeth are rigidly connected to one another and together form a one-piece planar assembly. The coiled teeth have a rectangular cross-section of width I and of length L, with formula (I).

公开(公告)号：US10389197B2

公开(公告)日：2019-08-20

申请号：US15115008

申请日：2015-01-29

Applicant: MOVING MAGNET TECHNOLOGIES (MMT)

Inventor： Stéphane Biwersi ,  Javier Rios-Quesada ,  Michaél Delbaere ,  Guillaume Loussert ,  Gael Andrieux

IPC: H02K1/34 ,  H02K11/00 ,  H02K33/12 ,  H02K33/16 ,  H02K11/215

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.

公开(公告)号：US20150263572A1

公开(公告)日：2015-09-17

申请号：US14417710

申请日：2013-07-30

Applicant: MOVING MAGNET TECHNOLOGIES (MMT)

Inventor： Arnaud Hyppias ,  Stéphane Tavernier ,  Stéphane Biwersi

IPC: H02K1/14 ,  H02K7/116 ,  H02K1/27

CPC classification number: H02K1/148 ,  H02K1/141 ,  H02K1/146 ,  H02K1/2706 ,  H02K1/2793 ,  H02K7/116 ,  H02K29/03 ,  H02K2213/03

Abstract: The present disclosure relates to a mono- or polyphase electric motor including a stator carrying at least three coils and consisting of 12×N straight teeth extending radially, N being an integer greater than or equal to 1, and of an equal peak divergence alpha, measured at their end from the centre of the motor, and a rotor exhibiting P pairs of magnetized poles such that P=5+2×R, P being a non-multiple of three, R being an integer greater than or equal to 0, alpha lying between 360°(12×N)/3 and 360°(12×N)/2.

Abstract translation: 本发明涉及单相或多相电动机，其包括承载至少三个线圈的定子，并由径向延伸的12×N直齿，N为大于或等于1的整数，并且具有相等的峰值发散α， 在电动机中心的端部测量的转子，以及表示P对的磁极的转子，使得P = 5 + 2×R，P为3的非倍数，R为大于或等于0的整数， α位于360°（12×N）/ 3和360°（12×N）/ 2之间。

公开(公告)号：US20150048694A1

公开(公告)日：2015-02-19

申请号：US14376506

申请日：2013-02-14

Applicant: MOVING MAGNET TECHNOLOGIES (MMT)

Inventor： Javier Rios-Quesada ,  Guillaume Loussert ,  Michaël Delbaere

IPC: H02K41/03

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.

Abstract translation: 本公开涉及一种电磁致动器，该电磁致动器产生由于电流在其整个有用行程Y上保持基本恒定的力并且在不存在电流的情况下具有低的力（包括至少一个定子结构） 至少一个供电线圈和移动构件，所述定子结构一方面具有垂直于行进Y的方向延伸的中心极，并且在行进方向上具有宽度YC1并在其端部终止 宽度YC2大于或等于移动构件的行进Y，YC2大于YC1，另一方面，在行进方向上具有宽度YL1的两个横向极，并且在其端部终止于 宽YL2大于YL1。