公开(公告)号：US20150323908A1

公开(公告)日：2015-11-12

申请号：US14651027

申请日：2013-12-11

Applicant: MOVING MAGNET TECHNOLOGIES (MMT)

Inventor： Eric RONDOT ,  Gaël Andrieux

IPC: G05B1/03 ,  G05D7/06 ,  F16K31/04 ,  H02P6/00 ,  G05B1/02

CPC classification number: G05B1/03 ,  F16K31/046 ,  G05B1/02 ,  G05D7/0623 ,  G05D7/0629 ,  H02P6/153 ,  H02P6/30 ,  H02P6/34

Abstract: The present disclosure relates to a mechatronic assembly for positioning a member including a control unit and an actuator, the control unit including a control algorithm and a power bridge, the algorithm controlling the power bridge, the power bridge outputting a two-wire electric signal, the actuator including a polyphase brushless electric motor having N phases (N being or higher), binary probes for detecting the position of the rotor of the motor, and power switches suitable for supplying the N phases of the motor from the two-wire electric signal, and states of the power switches is controlled directly by a signal emitted by the detection probes.

Abstract translation: 本公开涉及一种用于定位包括控制单元和致动器的构件的机电组件，所述控制单元包括控制算法和电源桥，所述控制电源桥的算法，输出双线电信号的电源桥， 该致动器包括具有N相（N个或更多个）的多相无刷电动机，用于检测电动机的转子位置的二进制探针和适于从两线电信号提供电动机的N相的电力开关 并且电力开关的状态由检测探针发出的信号直接控制。

公开(公告)号：US20150225983A1

公开(公告)日：2015-08-13

申请号：US14425467

申请日：2013-07-30

Applicant: MOVING MAGNET TECHNOLOGIES (MMT)

Inventor： Jean-Daniel Alzingre ,  Guillaume Keltz

IPC: E05B47/00 ,  E05C1/08

Abstract: A locking device includes a mobile locking member, movement of which can be prevented by a blocking member interacting with a motorized lever, where the motorized lever is capable of rotational movement about an axis with respect to the supporting structure, the centre of gravity of the lever lying on the axis, the lever being kept in a determined stable position and without rigid mechanical contact of the lever with the supporting structure apart from its axis of rotation.

Abstract translation: 锁定装置包括移动锁定构件，其运动可以通过与电动杆相互作用的阻挡构件来防止，其中电动杆能够相对于支撑结构绕轴线旋转运动， 杠杆位于轴线上，杠杆保持在确定的稳定位置，并且杠杆与支撑结构不受其旋转轴线的刚性机械接触。

公开(公告)号：US12044588B2

公开(公告)日：2024-07-23

申请号：US17433745

申请日：2020-02-25

Applicant: Moving Magnet Technologies

Inventor： Didier Frachon

IPC: G01L3/10 ,  G01L5/22 ,  H02K1/16 ,  H02K1/27

CPC classification number: G01L3/104 ,  G01L5/221 ,  H02K1/16 ,  H02K1/27

Abstract: A position sensor, in particular, intended for detecting the torsion of a steering column, includes a first magnetized rotor structure comprising magnets, a second stator structure comprising two rings extended by teeth that are axially oriented and interlocked, and a third stationary collector structure including two flux collection parts that define at least one air gap in which at least one magnet-sensitive element is placed. The flux collection parts and the ring gears define a magnetic permeance independent of the relative radial and angular position of the second stator structure with respect to the third collector structure. The collection parts comprise an angular collection sector and a primary collection zone continued by a prolongation having a secondary collection zone. The secondary collection zones end in flat extensions forming two poles of the air gap. The transverse median plane of the air gap intersects at least one of the prolongations.

公开(公告)号：US20240143017A1

公开(公告)日：2024-05-02

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

CPC classification number: G05G5/03 ,  F16D63/002 ,  G05G1/08 ,  G05G5/04 ,  G05G5/06 ,  G06F3/016 ,  G06F3/0362 ,  H01F7/02 ,  G05G2505/00 ,  G06F3/0393

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.

公开(公告)号：US20230348008A1

公开(公告)日：2023-11-02

申请号：US18006041

申请日：2021-07-16

Applicant: Moving Magnet Technologies

Inventor： Guillaume Keltz

IPC: B62J45/411 ,  B62M6/60 ,  B62M6/50 ,  B62M6/55 ,  G01L3/10 ,  B62J45/421

CPC classification number: B62J45/411 ,  B62M6/60 ,  B62M6/50 ,  B62M6/55 ,  G01L3/104 ,  B62J45/421

Abstract: A cycle driving device has a torque sensor, a crankset axle or a hub connected to a plate by a coupling, and a driving and measuring member having a first section secured in rotation with the crankset axle or hub, and a second section connected to the plate. A magnetic field source is supported by one of the sections. The coupling member incorporates a torque detection device. The first and second sections cooperate through an elastically deformable element. The torque detection device comprises a fixed magneto-sensitive element that measures a magnetic field according to the relative angular position of the first and second sections, and is capable of converting the magnetic field into an electrical signal. The magnetic field measurement is performed at a single axial position in the periphery of the first and second sections independently of the rotation of the crankset axle or hub.

公开(公告)号：US11742737B2

公开(公告)日：2023-08-29

申请号：US17595489

申请日：2020-05-15

Applicant: Moving Magnet Technologies

Inventor： Damien Laforge ,  Lionel Billet

IPC: H02K37/16 ,  H02K37/24 ,  H02K7/116

CPC classification number: H02K37/24 ,  H02K7/1166 ,  H02K37/16

Abstract: A gear motor comprising a reduction gear train and a three-phase electric motor comprising a stator formed of a stack of sheets and 3*k electric coils and a rotor having 5 k*N pairs of magnetized poles, with k=1 or 2, the stator having two separate angular sectors alpha 1 and alpha 2, which are centered on the center of rotation of the motor and comprise an alternation of notches and 3*k*N teeth, which are regularly spaced and converge toward the center of rotation and define a cavity in which the rotor is arranged, the gear motor being characterized in that N=4 and in that alpha 1 is less than or equal to 180° and comprises all of the coils of the motor.

公开(公告)号：US11657943B2

公开(公告)日：2023-05-23

申请号：US17285054

申请日：2019-10-16

Applicant: Moving Magnet Technologies

Inventor： Guillaume Loussert ,  Stéphane Biwersi

IPC: H01F7/122 ,  H01F1/14 ,  H01F7/14 ,  H01F7/16 ,  H01F7/18

CPC classification number: H01F7/122 ,  H01F1/14 ,  H01F7/14 ,  H01F7/1615 ,  H01F7/1872 ,  H01F2007/1669 ,  H01F2007/1692

Abstract: An actuator for controlling the movement of an element between two stable positions with pulsed electrical control without a change in polarity comprises: a ferromagnetic mobile mass, at least one electrically controlled wire coil that is fixed with respect to the mobile mass, at least two ferromagnetic poles that are fixed with respect to the mobile mass and on either side of the mobile mass. The actuator comprises at least one permanent magnet that attracts the mobile mass in order to achieve the two stable positions. The mobile mass defines, with the ferromagnetic poles, at least two variable air gaps during the movement of the mobile apparatus. The magnetic flux of the permanent magnet opposes the magnetic flux generated by the at least one coil regardless of the position of the mobile mass.

公开(公告)号：US20220311289A1

公开(公告)日：2022-09-29

申请号：US17753354

申请日：2020-08-26

Applicant: Moving Magnet Technologies

Inventor： Stéphane Tavernier ,  Gaël Andrieux

IPC: H02K1/14 ,  H02K1/18 ,  H02K9/22 ,  H02K21/16

Abstract: An electric machine comprises a yoke supporting N toroidal coils and a central rotor comprising a permanent magnet. The yoke has a plurality of stator modules comprising at least one stator core made from a soft ferromagnetic material supporting at least one coil. The stator cores have, at their front ends, complementary coupling surfaces providing magnetic and mechanical continuity. The machine further comprises—a cylindrical outer casing made from a thermally conductive material, —a plurality of continuous and solid longitudinal ribs extending radially and positioned between the cylindrical outer casing and the stator modules, in order to ensure the mechanical positioning of the yoke relative to the outer casing and promote the thermal conduction of heat from the yoke toward the outer casing.

公开(公告)号：US11431235B2

公开(公告)日：2022-08-30

申请号：US16061958

申请日：2016-12-13

Applicant: MOVING MAGNET TECHNOLOGIES (MMT)

Inventor： Guillaume Loussert ,  Stéphane Biwersi

IPC: H02K33/18 ,  H02K11/21

Abstract: A rotary actuator with a moving frame includes an electrical coil that moves on an angular travel about an axis of rotation A, the shape of the coil being an elliptical cylinder and the axis of winding B being orthogonal to the axis of rotation A, the coil being placed in the magnetic field of a fixed magnet. The fixed magnet surrounds the coil and includes two semicylindrical portions, the generatrices of which are orthogonal to the axis of rotation A, the first of the semicylindrical portions having a north pole directed toward the coil, orthogonally to the direction of the generatrices and being positioned outside the coil, the second having a south pole directed toward the coil, orthogonally to the direction of the generatrices and also being positioned outside the coil opposite the first portion. The actuator includes a ferromagnetic core inside the coil and an outer ferromagnetic yoke surrounding the fixed magnet, the coil moving in the air gap formed between the magnetized semicylindrical portions and the inner core.

公开(公告)号：US11329531B2

公开(公告)日：2022-05-10

申请号：US16770306

申请日：2018-12-05

Applicant: MOVING MAGNET TECHNOLOGIES

Inventor： Lionel Billet ,  Michaël Delbaere ,  Valentin Preault ,  Gaël Andrieux

IPC: H02K7/14 ,  F16K31/04 ,  H02K11/215 ,  F16K37/00 ,  H02K21/16

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.