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

IPC: H02K41/00 ,  H02K41/02 ,  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.

公开(公告)号：US20220005639A1

公开(公告)日：2022-01-06

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

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：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：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：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：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。