The invention relates to a slotted, electric radial flux machine, comprising a stator which has a stator axis and consists of two stator parts connected by a plurality of teeth, some or all of which are surrounded by coils, said stator parts having first and second patterns, respectively, in a plane perpendicular to the stator axis, characterised in that each of the teeth surrounded by coils is an extension of one of said patterns and has a front end engaging with a receiving region of the other of said patterns in order to form a point of contact that is constrained within said plane.
H02K 5/128 - Enveloppes ou enceintes caractérisées par leur configuration, leur forme ou leur construction spécialement adaptées à un fonctionnement dans un liquide ou dans un gaz utilisant des manchons d'entrefer ou des disques à film d'air
2.
ELECTROMAGNETIC ACTUATOR WITH DIRECT DRIVE AND IMPROVED SHOCK ABSORBANCE
The invention relates to a direct drive electromagnetic actuator for controlling the movement of a movable body (200) which is extended by an actuating head (280) between an inoperative position and an operative position, said actuator comprising an outer housing (100), the movable body (200) comprising: • an elastic means, and • a ferromagnetic material interacting with a fixed coil. The actuator further comprises a shock-absorbing block (220) which is movable with respect to said housing (100) over at least a portion of the travel of said movable body (200), and another portion of said resilient means (210) being joined to one end (221) connected to said shock-absorbing block (220), the length of said shock-absorbing block (220) being determined so that said shock-absorbing block (220) is compressed when said movable body (200) is in said operative position. The actuator further comprises a rigid abutment (203, 256) which is movable over at least a portion of the travel of the movable body (200) and comes into contact with a wall (105, 235) secured to the housing (100) when said movable body (200) is in said operative position.
The invention relates to a three-phase electric motor, formed by a stator part excited by three electric windings and a rotor (50) comprising a plurality of magnetised poles, the stator part having radially extending teeth, said stator part comprising: three consecutive wound teeth, each carrying a winding, in a first angular sector; and one to three non-wound complementary teeth, in a second angular sector complementary to the first angular sector.
H02K 21/16 - Moteurs synchrones à aimants permanents; Génératrices synchrones à aimants permanents avec des induits fixes et des aimants tournants avec des aimants tournant à l'intérieur des induits avec des noyaux d'induits annulaires à pôles saillants
4.
CONTROL DEVICE COMPRISING A MECHANICALLY GUIDED MEMBER FOR ENABLING A RELATIVE MOVEMENT
A control device comprising at least one permanent magnet (5, 7; 7a, 7b; 350, 351), and a mechanically guided member for enabling a relative movement between a. a first ferromagnetic structure (1, 100), b. a second ferromagnetic structure (3; 200) comprising at least one electric coil (8, 9; 250), said electric coil (8, 9; 250) modifying the magnetization state of said second ferromagnetic structure (3, 200) in accordance with the direction and the amplitude of the electric current flowing in said coil (8, 9; 250), said device furthermore comprising a position detection means (10) for detecting the relative position of said first and second ferromagnetic structures, and a circuit for driving the supply current of said coil (8, 9; 250), which varies as a function of the signal delivered by said position detection means (10).
G05G 5/03 - Moyens pour attirer l'attention de l'opérateur sur l'arrivée de l'organe de commande dans une position de commande ou de repère; Création d'une sensation, p.ex. moyens pour générer une force antagoniste
G05G 1/08 - Organes de commande actionnés à la main par un mouvement de rotation, p.ex. volants
G05G 5/06 - Moyens pour interdire, limiter ou inverser le mouvement de certaines pièces d'un mécanisme de commande, p.ex. verrouillage des organes de commande pour maintenir les organes de commande, seulement sur une ou sur un nombre limité de positions définies
G05G 5/04 - Butées pour limiter le mouvement des organes de commande, p.ex. butée réglable
G06F 3/01 - Dispositions d'entrée ou dispositions d'entrée et de sortie combinées pour l'interaction entre l'utilisateur et le calculateur
The invention relates to a magnetic position sensor comprising 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 said magnet.
G01D 5/14 - Moyens mécaniques pour le transfert de la grandeur de sortie d'un organe sensible; Moyens pour convertir la grandeur de sortie d'un organe sensible en une autre variable, lorsque la forme ou la nature de l'organe sensible n'imposent pas un moyen de conversion déterminé; Transducteurs non spécialement adaptés à une variable particulière utilisant des moyens électriques ou magnétiques influençant la valeur d'un courant ou d'une tension
The invention relates to a cycle driving device having a torque sensor, comprising a crank axle (130) or a hub connected to a plate (250) by a coupling, driving and measuring member, having a first section (100) which rotates as one with the crank axle (130) or hub and a second section (200) connected to the plate (250), a magnetic field source supported by one of the sections (100, 200), the coupling member incorporating a torque detection device. The first and second sections cooperate through an elastically deformable element (400), the torque detection device comprising a fixed magneto-sensitive element (456) which 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 being performed at a single axial position in the periphery of the first and second sections independently of the rotation of the crank axle (130) or hub.
G01L 3/10 - Dynamomètres de transmission rotatifs dans lesquels l'élément transmettant le couple comporte un arbre élastique en torsion impliquant des moyens électriques ou magnétiques d'indication
The invention relates to an electric motor having a cylindrical wound stator assembly forming a free interior space and a rotor assembly guided inside the interior space (6), the gear motor being inside a housing integral with the stator assembly and having a movable gearing assembly, the output of the movable gearing being integral with a movement output shaft, the input element of the movable gearing being driven by the rotor assembly extending inside the housing, the gear motor comprising a guide element of the output shaft, the output shaft being extended inside the motor up to a guide element located at least partly inside the stator assembly having the rotor assembly which is guided by a guide means positioned between the inner surface of the rotor assembly and a surface of the output shaft.
H02K 7/116 - Association structurelle avec des embrayages, des freins, des engrenages, des poulies ou des démarreurs mécaniques avec des engrenages
F16H 1/32 - Transmissions à engrenages pour transmettre un mouvement rotatif avec engrenages à mouvement orbital dans lesquels l'axe central de la transmission est situé à l'intérieur de la périphérie d'un engrenage orbital
The invention relates to a passive haptic device comprising a mechanical member (1) moving with respect to a second mechanical member (2), one of said mechanical members, mechanical member (1), having a plurality of magnetized zones (10) spaced periodically according to a pitch P1, the other of said mechanical members, mechanical member (2), having a second plurality of magnetized zones (20) spaced periodically according to a pitch P2, a force that varies periodically as a function of the relative position of said mechanical members (1, 2) being created by the magnetic interaction between said mechanical members (1, 2), the magnetic interaction varying according to a period Pt, characterized in that all the magnetized zones of at least one of said mechanical members (1, 2) are magnetized in the same direction.
G05G 5/06 - Moyens pour interdire, limiter ou inverser le mouvement de certaines pièces d'un mécanisme de commande, p.ex. verrouillage des organes de commande pour maintenir les organes de commande, seulement sur une ou sur un nombre limité de positions définies
G05G 5/03 - Moyens pour attirer l'attention de l'opérateur sur l'arrivée de l'organe de commande dans une position de commande ou de repère; Création d'une sensation, p.ex. moyens pour générer une force antagoniste
G05G 1/02 - Organes de commande actionnés à la main par un mouvement linéaire, p.ex. boutons poussoirs
G05G 1/04 - Organes de commande actionnés à la main par un mouvement de pivotement, p.ex. leviers
G05G 1/08 - Organes de commande actionnés à la main par un mouvement de rotation, p.ex. volants
G05G 9/047 - Mécanismes de commande manuelle équipés d'un seul organe de commande travaillant avec plusieurs organes commandés, p.ex. en sélection ou simultanément l'organe de commande étant manœuvré de différentes manières indépendantes, chacune de ces manœuvres individuelles entraînant un seul organe commandé dans lesquels la manœuvre de l'organe de commande peut être effectuée de plusieurs manières simultanément l'organe de commande étant manœuvré à la main autour d'axes orthogonaux, p.ex. manches à balai
9.
THREE-PHASE DUAL ELECTRIC MACHINE AND METHOD FOR CONTROLLING SUCH A MACHINE
The invention relates to an electric machine having a first and a second three-phase winding and comprising a stator formed of a cylindrical yoke made of a soft ferromagnetic material extended radially by a set of teeth, a portion of said set of teeth bearing said windings, said windings being distinct from one another, said first three-phase winding being connected in a delta configuration, said second three-phase winding being connected in a star configuration.
H02K 3/12 - Enroulements caractérisés par la configuration, la forme ou le genre de construction du conducteur, p.ex. avec des conducteurs en barre disposés dans des encoches
H02K 3/28 - Schémas d'enroulements ou de connexions entre enroulements
The invention discloses an electric machine comprising a yoke supporting N toroidal coils and a central rotor comprising a permanent magnet. The yoke consists of 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. This 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 towards the outer casing.
H02K 1/18 - Moyens de montage ou de fixation des parties magnétiques fixes sur ou aux structures constituant le stator
H02K 9/22 - Dispositions de refroidissement ou de ventilation par un matériau solide conducteur de la chaleur s'encastrant dans, ou mis en contact avec, le stator ou le rotor, p.ex. des ponts de chaleur
H02K 21/16 - Moteurs synchrones à aimants permanents; Génératrices synchrones à aimants permanents avec des induits fixes et des aimants tournants avec des aimants tournant à l'intérieur des induits avec des noyaux d'induits annulaires à pôles saillants
H02K 3/24 - Enroulements caractérisés par la configuration, la forme ou le genre de construction du conducteur, p.ex. avec des conducteurs en barre avec des canaux ou des conduits pour un agent de refroidissement entre les conducteurs
The invention relates to a passive haptic interface comprising a first element (1) which is rotatably movable about an axis (3) or translatably movable along an axis (3), the first movable element (1) rotating or moving opposite a second fixed element (2), the first movable element (1) having a first plurality of magnetic poles spaced periodically at a pole pitch Ps and in the direction of movement, the second fixed element (2) having 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 being created by the magnetic interaction between the first movable element (1) and the second fixed element (2) 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.
G05G 5/06 - Moyens pour interdire, limiter ou inverser le mouvement de certaines pièces d'un mécanisme de commande, p.ex. verrouillage des organes de commande pour maintenir les organes de commande, seulement sur une ou sur un nombre limité de positions définies
G05G 1/08 - Organes de commande actionnés à la main par un mouvement de rotation, p.ex. volants
G05G 9/047 - Mécanismes de commande manuelle équipés d'un seul organe de commande travaillant avec plusieurs organes commandés, p.ex. en sélection ou simultanément l'organe de commande étant manœuvré de différentes manières indépendantes, chacune de ces manœuvres individuelles entraînant un seul organe commandé dans lesquels la manœuvre de l'organe de commande peut être effectuée de plusieurs manières simultanément l'organe de commande étant manœuvré à la main autour d'axes orthogonaux, p.ex. manches à balai
G06F 3/01 - Dispositions d'entrée ou dispositions d'entrée et de sortie combinées pour l'interaction entre l'utilisateur et le calculateur
G06F 3/0362 - Dispositifs de pointage déplacés ou positionnés par l'utilisateur; Leurs accessoires avec détection des translations ou des rotations unidimensionnelles [1D] d’une partie agissante du dispositif de pointage, p.ex. molettes de défilement, curseurs, boutons, rouleaux ou bandes
H01H 19/11 - Organes mobiles; Contacts montés sur ces organes avec des moyens de repérage
The invention relates to a valve for controlling the circulation of a fluid, having a valve body comprising a movable control member, an electrical actuator comprising a stator and a rotor, a sealing cover extending from the valve body to the inside of the stator, the sealing cover being positioned at the interface between the rotor and the stator in such a way that the rotor is inside the cover and submerged in the fluid, the stator being isolated from the fluid, the rotor rotating about a first axis and being secured to a shaft extending along the first axis, the movable control member moving in a linear manner along a second axis or in rotation about the second axis, characterised in that the shaft has an end forming, with a toothed wheel driving the movable control member, a gear pair with non-intersecting or intersecting axes.
F16K 31/04 - Moyens de fonctionnement; Dispositifs de retour à la position de repos magnétiques utilisant un moteur
F16K 31/54 - Moyens mécaniques d'actionnement à engrenage à crémaillère et pignon
F16K 37/00 - Moyens particuliers portés par ou sur les soupapes ou autres dispositifs d'obturation pour repérer ou enregistrer leur fonctionnement ou pour permettre de donner l'alarme
F16K 31/50 - Moyens mécaniques d'actionnement à tige-guide filetée
F16K 31/53 - Moyens mécaniques d'actionnement à engrenage
The invention relates to a gear motor comprising a reduction gear train (18) and a three-phase electric motor comprising a stator (1) formed of a stack of sheets (12) and 3*k electric coils (5, 5A, 5B, 5C) and a rotor (6) having 5 k*N pairs of magnetised poles (7), with k = 1 or 2, the stator (1) having two separate angular sectors alpha 1 and alpha 2 which are centred on the centre of rotation of the motor and comprise an alternation of notches (2) and 3*k*N teeth (4) which are regularly spaced and converge towards the centre of rotation and define a cavity (3) in which the rotor (6) is arranged, the gear motor being characterised in that N = 4 and in that alpha 1 is less than or equal to 180° and comprises all of the coils (5, 5A, 5B, 5C) of the motor.
H02K 7/116 - Association structurelle avec des embrayages, des freins, des engrenages, des poulies ou des démarreurs mécaniques avec des engrenages
H02K 11/33 - Circuits d’entraînement, p.ex. circuits électroniques de puissance
H02K 1/28 - Moyens de montage ou de fixation des parties magnétiques tournantes sur ou aux structures constituant le rotor
H02K 1/30 - Moyens de montage ou de fixation des parties magnétiques tournantes sur ou aux structures constituant le rotor utilisant des pièces intermédiaires, p.ex. des croisillons
H02K 29/03 - Moteurs ou génératrices à dispositifs de commutation non mécaniques, p.ex. tubes à décharge ou dispositifs à semi-conducteurs avec un circuit magnétique spécialement adapté pour éviter des ondulations du couple ou des problèmes de démarrage autonome
14.
POSITION SENSOR, IN PARTICULAR INTENDED FOR DETECTING THE TORSION OF A STEERING COLUMN
The present invention relates to a position sensor, in particular intended for detecting the torsion of a steering column, which consists of a first magnetised magnetic rotor structure (100) comprising a plurality of magnets, a second stator structure (200) comprising two rings (210, 250) extended by teeth (212, 252) which are axially oriented and interlocked, and a third stationary collector structure (300) consisting of two flux collection parts (50, 60) which define at least one air gap in which at least one magnet-sensitive element (301, 302) is placed, said flux collection parts (50, 60) and said ring gears (210, 250) defining therebetween a magnetic permeance independent of the relative radial and angular position of said second stator structure (200) with respect to said third collector structure (300), said collector parts (50, 60) each comprising an angular collection sector (310, 350) and it being defined that each collector part (50, 60) has at least one primary collection zone (311, 351) continued by at least one extension (312, 353, 354) having at least one secondary collection zone (313, 333, 363, 357, 358), in that the said secondary collection zones (313, 333, 363, 357, 358) end in flat extensions (359, 360, 316, 317) forming the two poles of said air gap and in that the transverse median plane (P) of said air gap intersects at least one of said extensions (312, 353, 354).
B62D 6/10 - Dispositions pour la commande automatique de la direction en fonction des conditions de conduite, qui sont détectées et pour lesquelles une réaction est appliquée, p.ex. circuits de commande réagissant uniquement au couple d'entrée caractérisées par les moyens pour détecter le couple
G01L 3/10 - Dynamomètres de transmission rotatifs dans lesquels l'élément transmettant le couple comporte un arbre élastique en torsion impliquant des moyens électriques ou magnétiques d'indication
15.
POSITION SENSOR, DESIGNED IN PARTICULAR FOR DETECTING TORSION IN A STEERING COLUMN
The invention relates to a position sensor, designed in particular for detecting torsion in a steering column, made up of a first magnetized magnetic rotor structure (100) comprising a plurality of magnets, of two flux-collecting components (210, 220) which define at least one air gap in which at least one magnetically sensitive element (300, 301, 302) is positioned, defined such that each collecting component (210, 220) has at least one primary collecting zone (211, 221) extended by at least one extension (216, 219, 226, 229) having at least one secondary collecting zone (214, 215, 224, 225), in that said secondary collecting zones (214, 215, 224, 225), end in flattened shoes that form the two poles of said air gap, and in that the transverse mid-plane (350) of said air gap intersects at least one of said extensions (216, 219, 226, 229).
B62D 6/10 - Dispositions pour la commande automatique de la direction en fonction des conditions de conduite, qui sont détectées et pour lesquelles une réaction est appliquée, p.ex. circuits de commande réagissant uniquement au couple d'entrée caractérisées par les moyens pour détecter le couple
G01L 3/10 - Dynamomètres de transmission rotatifs dans lesquels l'élément transmettant le couple comporte un arbre élastique en torsion impliquant des moyens électriques ou magnétiques d'indication
G01D 5/04 - Moyens mécaniques pour le transfert de la grandeur de sortie d'un organe sensible; Moyens pour convertir la grandeur de sortie d'un organe sensible en une autre variable, lorsque la forme ou la nature de l'organe sensible n'imposent pas un moyen de conversion déterminé; Transducteurs non spécialement adaptés à une variable particulière utilisant des moyens mécaniques utilisant des engrenages
G01D 5/14 - Moyens mécaniques pour le transfert de la grandeur de sortie d'un organe sensible; Moyens pour convertir la grandeur de sortie d'un organe sensible en une autre variable, lorsque la forme ou la nature de l'organe sensible n'imposent pas un moyen de conversion déterminé; Transducteurs non spécialement adaptés à une variable particulière utilisant des moyens électriques ou magnétiques influençant la valeur d'un courant ou d'une tension
G01L 5/22 - Appareils ou procédés pour la mesure des forces, du travail, de la puissance mécanique ou du couple, spécialement adaptés à des fins spécifiques pour la mesure de la force appliquée aux organes de commande, p.ex. organes de commande des véhicules, détentes
The present invention relates to an adjustable force device comprising a member, which is mechanically guided for allowing a displacement according to a predetermined trajectory, and means for magnetically indexing said displacement by the magnetic interaction between a first ferromagnetic structure (1, 1a) and a second ferromagnetic structure (3, 3a) integral with a magnet (7), characterized in that said magnet (7) is at least partially surrounded by an electric coil (8, 9) which modifies the magnetization of said permanent magnet (7) according to the direction and the amplitude of the electric current flowing in said coil (8, 9).
G05G 5/06 - Moyens pour interdire, limiter ou inverser le mouvement de certaines pièces d'un mécanisme de commande, p.ex. verrouillage des organes de commande pour maintenir les organes de commande, seulement sur une ou sur un nombre limité de positions définies
H01H 3/50 - Mécanismes-moteurs, c. à d. pour transmettre la force motrice aux contacts avec moyens d'indication ou de localisation, p.ex. indication par bille et ressort
G05G 1/08 - Organes de commande actionnés à la main par un mouvement de rotation, p.ex. volants
G05G 5/03 - Moyens pour attirer l'attention de l'opérateur sur l'arrivée de l'organe de commande dans une position de commande ou de repère; Création d'une sensation, p.ex. moyens pour générer une force antagoniste
The invention relates to an actuator for controlling the movement of an element between two stable positions with pulsed electrical control without a change in polarity, having: • a ferromagnetic mobile mass (2), • at least one electrically controlled wire coil (6, 6a, 6b) that is fixed with respect to the mobile mass (2), • at least two ferromagnetic poles (15a, 15b) that are fixed with respect to said mobile mass (2) and on either side of said mobile mass (2). Said actuator comprises at least one permanent magnet (3a, 3b) that attracts said mobile mass (2) in order to achieve the two stable positions, said mobile mass (2) defining, with said ferromagnetic poles (15a, 15b), at least two variable air gaps (11a, 11b, 12a, 12b) during the movement of the mobile apparatus, the magnetic flux of said permanent magnet (3a, 3b) opposing the magnetic flux generated by said at least one coil (6, 6a, 6b) regardless of the position of the mobile mass (2).
H01F 7/18 - Circuits en vue d'obtenir des caractéristiques de fonctionnement souhaitées, p.ex. pour un fonctionnement lent, pour l'excitation successive des enroulements, pour l'excitation à grande vitesse des enroulements
F16K 31/00 - Moyens de fonctionnement; Dispositifs de retour à la position de repos
The invention relates to a valve for controlling the circulation of a fluid, having a valve body (2) 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, said fixed screw or said fixed nut being secured to the valve body, the stator being secured to the valve body via said housing, the sealing bell being 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 said fluid, the stator being isolated from said fluid, the rotor having the function of a nut or of a screw and having a helical movement imposed by said fixed screw or said fixed nut and driving the needle axially, characterized in that the motor is a brushless polyphase motor with radial principal magnetic flux.
F16K 37/00 - Moyens particuliers portés par ou sur les soupapes ou autres dispositifs d'obturation pour repérer ou enregistrer leur fonctionnement ou pour permettre de donner l'alarme
F16K 31/04 - Moyens de fonctionnement; Dispositifs de retour à la position de repos magnétiques utilisant un moteur
H02K 21/16 - Moteurs synchrones à aimants permanents; Génératrices synchrones à aimants permanents avec des induits fixes et des aimants tournants avec des aimants tournant à l'intérieur des induits avec des noyaux d'induits annulaires à pôles saillants
H02K 7/06 - Moyens de transformation d'un mouvement alternatif en un mouvement circulaire ou vice versa
H02K 7/14 - Association structurelle à des charges mécaniques, p.ex. à des machines-outils portatives ou des ventilateurs
F16K 31/50 - Moyens mécaniques d'actionnement à tige-guide filetée
The invention relates to an electric machine having a rotor (11a, 11b, 11c) comprising a set of permanent magnets (13a, 13b, 13c, 13d, 13e, 13f, 13g) and a stator comprising a stator strip (1) made of a soft ferromagnetic material, said strip (1) supporting a coil body (4) having a single discontinuity, said coil body (4) supporting a plurality of wire coils (8) so as to form a polyphase coil stator assembly (10) of the toroidal type, characterised in that said strip (1) has a single discontinuity and has at least one partial cut (2) at regular intervals between two consecutive wire coils (8).
H02K 3/46 - Fixation des enroulements sur la structure statorique ou rotorique
H02K 15/04 - Procédés ou appareils spécialement adaptés à la fabrication, l'assemblage, l'entretien ou la réparation des machines dynamo-électriques d'enroulements, avant leur montage dans les machines
H02K 3/28 - Schémas d'enroulements ou de connexions entre enroulements
21.
DETECTION MODULE FOR A ROTARY HANDLE OF A MOTORIZED VEHICLE
The invention relates to a detection module for a rotary handle (2) that is intended to be attached to the tube (3) of a handlebar (1) of a vehicle next to said handle (2) and comprising a cylindrically shaped magnet, a probe for detecting the magnetic field produced by said magnet, a support for said probe, a printed circuit to which said probe is rigidly connected, a support for said magnet and a collar (4) serving as a housing for said module, said magnetically sensitive probe detecting the rotation of the magnetic field produced by said magnet and being rigidly connected to said handlebar (1), said magnet support and magnet being rigidly connected to said handle (2), said magnet support and magnet forming a cavity such that the inner radial surface of the magnet is positioned outside and facing said magnetically sensitive probe. Said magnet has a continually variable direction of magnetization such that the total rotation of the angle of the magnetic field generated by said magnet at the measurement point during the mechanical rotation of the handle (2) is greater than 180°.
G01D 5/14 - Moyens mécaniques pour le transfert de la grandeur de sortie d'un organe sensible; Moyens pour convertir la grandeur de sortie d'un organe sensible en une autre variable, lorsque la forme ou la nature de l'organe sensible n'imposent pas un moyen de conversion déterminé; Transducteurs non spécialement adaptés à une variable particulière utilisant des moyens électriques ou magnétiques influençant la valeur d'un courant ou d'une tension
22.
ROTOR FOR ELECTRICAL MACHINE HAVING INTERNAL PERMANENT MAGNETS
The present invention relates to a rotor for an electrical machine having internal permanent magnets comprising a yoke consisting of a stack of sheets defining a plurality of recesses (1 to 8) for receiving parallelepipedal permanent magnets (51 to 58), said recesses (1 to 8) being surrounded by magnetically saturated external transverse isthmuses (11, 12), by radial isthmuses (10, 20, 30, 40), lateral isthmuses (15, 16) and oblique isthmuses (13, 14), characterized in that said magnets (51 to 58) are assembled in pairs of magnets (51, 52) magnetized in the same direction and perpendicular to the radial direction of the radial isthmuses (10, 20, 30, 40) arranged between said coupled magnets, said radial isthmuses (10, 20, 30, 40) having a thickness of less than 5% of the diameter of the rotor, and in that 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 (11, 12). The invention 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.
The invention relates to a linear electromagnetic actuator comprising a stator (1), at least one electrical coil (5) and two ferromagnetic stator poles (14, 15) situated, axially, on either side of the coil (5) as well as two independent mobile masses (6, 7) moving along parallel axes between said stator poles (14, 15) inside the coil (5), each of the mobile masses (6, 7) being made of a ferromagnetic material, said mobile masses (6, 7) each being surrounded by a fixed magnetized casing consisting of at least one permanent magnet, said magnetized casing extending over a tubular section of less than 360°, each of said casings defining a non-magnetized area oriented toward the non-magnetized area of the other casing, said non-magnetized areas being symmetrical in relation to the median plane (M) passing through the parallel axes.
H02K 33/16 - Moteurs avec un aimant, un induit ou un système de bobines à mouvement alternatif, oscillant ou vibrant avec des induits polarisés se déplaçant dans des directions opposées par inversion de la tension appliquée au système à une seule bobine
H02K 11/215 - Dispositifs utilisant un effet magnétique, p.ex. des éléments à effet Hall ou magnéto-résistifs
H02K 16/02 - Machines avec un stator et deux rotors
H02K 1/17 - Noyaux statoriques à aimants permanents
A stator for an electric machine having a plurality of radially extending teeth (12 to 17), supported by an outer annular yoke (1) radial to said teeth (12 to 17), at least part of the teeth (12 to 17) supporting a coil and the outer annular yoke (1) having flutes (2 to 7) of partially cylindrical shape opening towards said teeth (12 to 17), at least part of the teeth (12 to 17) each having, at their end, on the side of said outer annular yoke (1), a protuberance (35) of partially cylindrical shape, said protuberance being held in said flute by contact points so that at least one part of the teeth (12 to 17) performs a relative movement having a degree of rotational and/or translational freedom relative to said annular yoke (1).
The invention relates to a motorised air circulation valve comprising a gear motor (1), a valve body (2), a rotary shaft (3) provided with a shutter (4), said rotary shaft (3) being rotated by said gear motor (1), said gear motor (1) comprising a set of reduction gears, a brushless electric motor (6) formed by a rotor (7) having N pairs of magnetised poles connected to a pinion (8) of said set of reduction gears, said pinion (8) driving an output wheel (9) rigidly connected to said rotary shaft (3), characterised in that the electric motor (6) comprises a stator part (10) having at least two coils (11), said stator part (10) having two angular sectors, alpha1 and alpha2, of respective radii R1 and R2, with R1 being greater than R2, the centre of the radii and the angular sectors being defined relative to the centre of rotation of the rotor (7), the angular sector alpha1 being defined by the angular deviation between the axes of the first and last coils (11) considered in a circumferential direction of the motor, in that the angular sector alpha1 is less than 180° and comprises said coils, the sector alpha2 being devoid of a fully fitted coil, in that an end of the gear motor (1) defines a side (12) of the gear motor (1) and in that the angular sector alpha2 of the stator part is positioned facing the side (12).
F16K 31/04 - Moyens de fonctionnement; Dispositifs de retour à la position de repos magnétiques utilisant un moteur
F02D 9/10 - Obturateurs d'étranglement spécialement adaptés à cet effet; Aménagements de ces obturateurs sur les conduits comportant des volets pivotants
H02K 21/14 - Moteurs synchrones à aimants permanents; Génératrices synchrones à aimants permanents avec des induits fixes et des aimants tournants avec des aimants tournant à l'intérieur des induits
The invention relates to a high-speed electric machine, having a speed higher than 20,000 rpm, comprising a rotor (1) having 1 or 2 pairs of magnetized poles, and an enhanced stator (2) which has an outer diameter that is larger than 18 millimeters and which has 3 or 6 straight teeth (3) extending radially and borne by a one-piece peripheral annular collar (5), at least a portion of the teeth (3) bearing coils (4), said teeth (3) being rigidly connected to one another and together forming a one-piece planar assembly; according to the invention, the coiled teeth (3) have a rectangular cross-section of width I and of length L, with formula (I).
H02K 29/03 - Moteurs ou génératrices à dispositifs de commutation non mécaniques, p.ex. tubes à décharge ou dispositifs à semi-conducteurs avec un circuit magnétique spécialement adapté pour éviter des ondulations du couple ou des problèmes de démarrage autonome
27.
GEARED MOTOR UNIT HAVING A POSITION SENSOR SURROUNDING THE OUTPUT GEAR
The invention presents a geared motor unit consisting of a housing (1) comprising an electric motor formed of a coiled stator assembly (6) and of a magnetized rotor (4), said housing (1) further comprising a printed circuit board (8) for connecting and controlling said motor, a movement-reducing gear train, a sensor magnet (10) and a magnetosensitive probe (9), the gear train comprising a toothed movement output gear (RDS), the sensor magnet (10) being ring-shaped and being rigidly connected to said output gear (RDS), including: - an output gear (RDS) is extended on either side of the sensor magnet (10) by two guides (11, 12) cooperating with the two opposite walls of the housing (1); a ring-shaped magnet (10) surrounds the axis of rotation of the output gear (RDS); a printed circuit board (8) comprises the means for controlling said motor and extends up to the vicinity of the output gear (RDS), said printed circuit board (8) includes, in the area located in the vicinity of the output gear (RDS), said magnetosensitive probe (9) which is connected directly, electrically and mechanically, to said area and is located axially or radially facing said a ring-shaped magnet (10).
H02K 7/116 - Association structurelle avec des embrayages, des freins, des engrenages, des poulies ou des démarreurs mécaniques avec des engrenages
H02K 11/215 - Dispositifs utilisant un effet magnétique, p.ex. des éléments à effet Hall ou magnéto-résistifs
H02K 11/38 - Circuits de commande ou d’entraînement associés à des moteurs à changement de vitesse du type roue à vis sans fin
F02D 11/10 - Dispositions ou adaptations pour le déclenchement non automatique de la commande du moteur, p.ex. démarrage par l'opérateur caractérisées par des liaisons non mécaniques de la commande, p.ex. par des liaisons de commande à fluide ou par des liaisons de commande à relais de puissance ou puissance assistée électriques
28.
ACTUATOR WITH MOVING COIL FRAME AND ENHANCED DYNAMICS
The invention presents a rotary actuator with a moving frame consisting of an electrical coil (1) that moves on an angular travel about an axis of rotation A, the shape of the coil (1) being an elliptical cylinder and the axis of winding B being orthogonal to the axis of rotation A, the coil (1) being placed in the magnetic field of a fixed magnet, according to the invention the fixed magnet surrounds said coil (1) and consists of two semicylindrical portions (3, 4), 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 (1), orthogonally to the direction of the generatrices and being positioned outside the coil (1), the second having a south pole directed toward the coil, orthogonally to the direction of the generatrices and also being positioned outside the coil (1) opposite the first portion, the actuator including a ferromagnetic core (6) inside the coil (2) and an outer ferromagnetic yoke (5) surrounding the fixed magnet, the coil (1) moving in the air gap formed between the magnetized semicylindrical portions (3, 4) and the inner core (6).
H02K 33/18 - Moteurs avec un aimant, un induit ou un système de bobines à mouvement alternatif, oscillant ou vibrant avec des systèmes de bobines se déplaçant, du fait de mises sous tension intermittentes ou inversées, par interaction avec un système de champ magnétique fixe, p.ex. des aimants permanents
H02K 11/21 - Dispositifs pour détecter la vitesse ou la position, ou actionnés par des valeurs de ces variables
29.
LINEAR ACTUATOR WITH IMPROVED MAGNETIC STABILITY AND STRIPPING FORCE
The invention relates to a linear electromagnetic actuator that has a stroke c, with at least one stable position in one of the ends of the stroke, and comprises: an armature (6) made of a soft magnetic material, said armature (6) being movable in an axial direction Y and having a length Hm in the direction Y, said armature (6) having a symmetrical shape at the axis Y, and a stationary stator yoke (1) made of a soft magnetic material and holding at least one electric coil (2). Said actuator also comprises at least one stationary permanent magnet (4) that is magnetized along a transverse axis X perpendicular to the direction Y. The magnet (4) is transversely placed between the movable armature (6) and the electric coil (2). The magnet (4) has a length Ha in the direction Y. The stationary yoke (1) and the movable armature (6) 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 x (Ha+c) < Hm < 1.1 x (Ha+c) so that, when the movable armature (6) is in the end stability position thereof, one of the two axial ends of the movable armature (6) is adjacent to one of the two axial ends of the permanent magnet (4).
H02K 33/16 - Moteurs avec un aimant, un induit ou un système de bobines à mouvement alternatif, oscillant ou vibrant avec des induits polarisés se déplaçant dans des directions opposées par inversion de la tension appliquée au système à une seule bobine
H02K 33/18 - Moteurs avec un aimant, un induit ou un système de bobines à mouvement alternatif, oscillant ou vibrant avec des systèmes de bobines se déplaçant, du fait de mises sous tension intermittentes ou inversées, par interaction avec un système de champ magnétique fixe, p.ex. des aimants permanents
The invention relates to a linear electromagnetic actuator comprising a stator (1) excited by at least one electric coil (2) arranged around an axis of symmetry (15) and two ferromagnetic stator poles (13, 14) positioned axially on either side of the coil (2), as well as at least two independent moving members (7), each of said moving members (7) being formed of a ferromagnetic material, characterized in that said linear electromagnetic actuator comprises at least three magnetized poles (4.5) arranged inside the coil (2), with respectively a first magnetized pole (4) positioned in the vicinity of the median plane separating the two moving members (7) and containing the axis (15) of the coil (2), and a second and third magnetized pole (5) arranged laterally on either side of said moving members (7), between said moving members (7) and the coil (2).
H02K 33/06 - Moteurs avec un aimant, un induit ou un système de bobines à mouvement alternatif, oscillant ou vibrant avec des induits entraînés dans un sens par application d'énergie à un système à une seule bobine et ramenés par une force d'origine mécanique, p.ex. par des ressorts dans lesquels la fréquence de fonctionnement est déterminée par la fréquence d'un courant alternatif appliqué en permanence avec des induits polarisés
H02K 33/16 - Moteurs avec un aimant, un induit ou un système de bobines à mouvement alternatif, oscillant ou vibrant avec des induits polarisés se déplaçant dans des directions opposées par inversion de la tension appliquée au système à une seule bobine
31.
SLOTLESS ELECTRICAL MACHINE WITH CONCENTRATED WINDING
The present invention concerns an electrical machine comprising a tubular rotor magnetised to have circumferential polar alternations, and a stator comprising a body (4) that is traversed by a channel (16) having an inner transverse section that substantially corresponds to the outer transverse section of said rotor, said body (4) carrying a plurality of windings (5a to 5c), said stator being surrounded by an outer ferromagnetic envelope (2), characterised in that said body (4) is extended by three, four or six radial projections made from an electrically insulating material having, in the transverse cross section, a longitudinal core (20 to 22) for receiving a winding, said core (16) being extended by a peripheral extension (30 to 32) having an outer surface that matches the inner surface of said envelope (2) and covers the wound area. The invention also concerns a method for producing such an electrical machine.
H02K 1/27 - Noyaux rotoriques à aimants permanents
H02K 3/34 - Enroulements caractérisés par la configuration, la forme ou la réalisation de l'isolement entre conducteurs ou entre conducteur et noyau, p.ex. isolement d'encoches
H02K 3/52 - Fixation des enroulements de pôles saillants ou de leurs connexions
32.
MECHATRONIC ASSEMBLY FOR DRIVING AN EXTERNAL MEMBER USING A BRUSHLESS MOTOR AND A SIMPLE ASSEMBLY OF ELECTRONIC COMPONENTS
The invention 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, said algorithm controlling said 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 said motor, and power switches suitable for supplying the N phases of the motor from the two-wire electric signal, characterised in that the state of the power switches is controlled directly by a signal emitted by the detection probes.
F02N 11/00 - Démarrage des moteurs au moyen de moteurs électriques
H02P 29/00 - Dispositions pour la régulation ou la commande des moteurs électriques, adaptées à des moteurs à courant alternatif et à courant continu
H02P 6/00 - Dispositions pour commander les moteurs synchrones ou les autres moteurs dynamo-électriques utilisant des commutateurs électroniques en fonction de la position du rotor; Commutateurs électroniques à cet effet
Locking device comprising a mobile locking member (9), movement of which can be prevented by a blocking member interacting with a motorized lever (5), characterized in that said motorized lever (5) is capable of rotational movement about an axis (7) with respect to the supporting structure (3), the centre of gravity of said lever (5) lying on said axis (7), said lever (5) being kept in a determined stable position and without rigid mechanical contact of the lever (5) with the supporting structure (3) apart from its axis of rotation (7).
The present invention relates to a mono- or polyphase electric motor comprising a stator carrying at least three coils and consisting of 12 x N straight teeth extending radially, N being an integer greater than or equal to 1, and of an equal angular width 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 x R, P being a non-multiple of three, R being an integer greater than or equal to 0, alpha lying between 3607(12 x N)/3 and 3607(12 x N)/2.
H02K 29/03 - Moteurs ou génératrices à dispositifs de commutation non mécaniques, p.ex. tubes à décharge ou dispositifs à semi-conducteurs avec un circuit magnétique spécialement adapté pour éviter des ondulations du couple ou des problèmes de démarrage autonome
35.
COMPACT DIRECT-DRIVE ACTUATOR GENERATING A CONSTANT FORCE
The present invention 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, consisting of at least one stator structure (1), at least one electrical supply coil (3), and a moving member (2), said stator structure (1) having, on the one hand, a central pole (4) running perpendicular to the direction of said 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 (2), YC2 being greater than YC1, and, on the other hand, two lateral poles (5a, 5b) having widths YL1 in the direction of the travel and terminating at their end in a width YL2 greater than YL1, the lateral poles (5a, 5b) and the central pole (4) being separated by a distance YG, the moving member (2) that is able to move relative to the stator structure (1) comprising an armature (11) supporting at least two adjacent thin permanent magnets (6, 7) each having a width YA, the moving member (2) and the stator structure (1) delimiting an air gap E, the coil (3) having a width YB, characterized in that the width YL2 of the lateral poles (8) is equal to (2YL1+2YB+YC1-2YG-YC2)/2 and less than the width YC2 of the central pole (4).
The present invention relates to a position-indicating module comprising a position sensor consisting of a mobile element, able to be driven directly by an operator or by a mechanical or electromechanical drive element, and of a detection assembly delivering electrical information dependent on the position of the mobile assembly, as well as at least one illumination element comprising at least one light source, characterized in that the mobile assembly comprises a zone able to allow through the light beam issuing from said illumination element and in that the illumination element is situated opposite said zone.
A display module has a two-phase motor comprising a rotor (6) having N pairs of poles magnetised radially, in alternate directions, N being equal to 3 or 5, and a stator part (4) having at least two W-shaped circuits made from radial pole teeth extending inwards from a peripheral closed belt and having a coil (5) on a central leg of the W, said W-shaped circuits being arranged in such a way that when the central tooth of one of the W-shaped circuits is positioned facing a rotor magnetic transition, at least one central tooth of another W-shaped circuit is positioned facing a rotor magnetic pole. Said display module additionally comprises at least one means of specific mechanical interaction (13) between the rotor and the stator, providing angular friction at a force that is substantially constant depending on the speed of the rotor (6) relative to the stator (4), and at a value lower than the torque produced by the electromagnetic interaction between the rotor and the stator.
H02K 37/16 - Moteurs à rotor tournant pas à pas et sans rupteur ou commutateur actionné par le rotor, p.ex. moteurs pas à pas du type à aimant permanent avec des induits fixes et des aimants tournants avec des aimants tournant à l'intérieur des induits avec des noyaux d'induits en forme de fer à cheval
H02K 7/116 - Association structurelle avec des embrayages, des freins, des engrenages, des poulies ou des démarreurs mécaniques avec des engrenages
F16H 57/00 - TRANSMISSIONS - Parties constitutives générales des transmissions
38.
COMPACT POSITIONING ASSEMBLY COMPRISING AN ACTUATOR AND A SENSOR BUILT INTO THE YOKE OF THE ACTUATOR
A positioning assembly (14) comprises a position sensor and a magnetic actuator, the actuator comprising a stator assembly formed of at least one ferromagnetic stator (10) bearing at least one electric power supply coil (7a, 7b) and a yoke (3) able to move relative to the stator assembly, the actuator having a geometry that is of revolution or periodic about an axis (6) referred to as the main axis passing through said yoke (3), said sensor having at least one permanent magnet (2) secured to said yoke (3) and at least one magneto sensitive probe (1) that is fixed in relation to the magnetic (2) and able to measure the amplitude or direction of the magnetic field emitted by the magnet. The yoke (3) has an interior recess (18) comprising the main axis (6) of the actuator, and the magnet (2) is positioned inside the recess (18) and secured to the yoke (3).
H02K 33/12 - Moteurs avec un aimant, un induit ou un système de bobines à mouvement alternatif, oscillant ou vibrant avec des induits se déplaçant dans des directions opposées par alimentation alternée de systèmes à deux bobines
H02K 33/02 - Moteurs avec un aimant, un induit ou un système de bobines à mouvement alternatif, oscillant ou vibrant avec des induits entraînés dans un sens par application d'énergie à un système à une seule bobine et ramenés par une force d'origine mécanique, p.ex. par des ressorts
39.
ELECTROMAGNETIC ACTUATOR HAVING IMPROVED FORCE DENSITY, AND USE THEREOF FOR AN ELECTRIC RAZOR
The invention relates to an electromagnetic actuator including a stator unit (2) having N poles having the width LP, and at least one coil (3) surrounding one of said poles (7b), wherein N≤3, and a magnetic portion (8), which is movable, relative to the stator unit (2), in a direction of relative movement and over a course of travel C, and including N+1 magnetized areas (4a, 4b, 5a, 5b), the magnetizations of which are perpendicular to the relative movement direction and in alternate directions. According to the invention, the magnetic portion (8) comprises a yoke (6) for closing off the magnetic fluxes passing through the magnetized areas, the course of travel C of the magnetic portion (8) being less than or equal to the width LP of each pole, and the thickness of the magnetized areas perpendicular to the direction of movement being less than the course of travel C of the magnetic portion (8).
H02K 33/16 - Moteurs avec un aimant, un induit ou un système de bobines à mouvement alternatif, oscillant ou vibrant avec des induits polarisés se déplaçant dans des directions opposées par inversion de la tension appliquée au système à une seule bobine
B26B 19/00 - Tondeuses ou rasoirs opérant par plusieurs arêtes coupantes, p.ex. tondeuses à cheveux, rasoirs à sec
The invention relates in particular to a method for parameterizing a system for measuring an absolute position, said system comprising a permanent magnet, at least one probe that is mobile relative to said magnet over a given path, and a calculation means providing position information calculated on the basis of the arctangent of the ratio, to which a correction coefficient G is assigned, between the output signals of the probe, wherein said signals are pseudo-sinusoidal and squared. Said method includes an optimization operation that involves selecting the value of the coefficient G that minimizes the errors of the measurement system resulting from the pseudo-sinusoidal character of the signals output from the probe.
G01D 5/14 - Moyens mécaniques pour le transfert de la grandeur de sortie d'un organe sensible; Moyens pour convertir la grandeur de sortie d'un organe sensible en une autre variable, lorsque la forme ou la nature de l'organe sensible n'imposent pas un moyen de conversion déterminé; Transducteurs non spécialement adaptés à une variable particulière utilisant des moyens électriques ou magnétiques influençant la valeur d'un courant ou d'une tension
G01D 5/244 - Moyens mécaniques pour le transfert de la grandeur de sortie d'un organe sensible; Moyens pour convertir la grandeur de sortie d'un organe sensible en une autre variable, lorsque la forme ou la nature de l'organe sensible n'imposent pas un moyen de conversion déterminé; Transducteurs non spécialement adaptés à une variable particulière utilisant des moyens électriques ou magnétiques produisant des impulsions ou des trains d'impulsions
41.
MAGNETIC MULTI-TURN ABSOLUTE POSITION DETECTION DEVICE
The invention relates to a magnetic device for detecting the absolute position of an input shaft capable of rotating more than 360°, said device including a main magnetic sensor (2, 6), a motion reducer (1,4), and a secondary magnetic sensor (7, 9), wherein the main magnetic sensor (2, 6) is connected to a rotor (5), measures the rotation of the shaft for ranges of angles of less than 360°, and includes a main magnet (2), the motion reducer (1, 4) converts the rotation of the shaft into a reduced rotation, the maximum amplitude of which is equal to no more than 360°, and the secondary magnetic sensor (7, 9) measures the reduced rotation and includes a secondary magnet (9). According to the invention, the secondary magnet (9) is arranged between the upper and lower planes of the main rotor (5), and the main magnet (2) has P pairs of poles, where P is greater than 1.
G01D 5/244 - Moyens mécaniques pour le transfert de la grandeur de sortie d'un organe sensible; Moyens pour convertir la grandeur de sortie d'un organe sensible en une autre variable, lorsque la forme ou la nature de l'organe sensible n'imposent pas un moyen de conversion déterminé; Transducteurs non spécialement adaptés à une variable particulière utilisant des moyens électriques ou magnétiques produisant des impulsions ou des trains d'impulsions
G01D 5/245 - Moyens mécaniques pour le transfert de la grandeur de sortie d'un organe sensible; Moyens pour convertir la grandeur de sortie d'un organe sensible en une autre variable, lorsque la forme ou la nature de l'organe sensible n'imposent pas un moyen de conversion déterminé; Transducteurs non spécialement adaptés à une variable particulière utilisant des moyens électriques ou magnétiques produisant des impulsions ou des trains d'impulsions utilisant un nombre variable d'impulsions dans un train
42.
INDICATOR DEVICE OF AN INSTRUMENT PANEL WITH A COMPLEX PLANAR MOVEMENT
The invention relates to an indicator device that can be used on an instrument panel and which includes two electric motors, two concentric shafts, a visual information member (3) moved in translation by one of the shafts in a transverse direction (Y) relative to the axis of rotation (Z) of said shaft, and a guide member (5) that is rotatably linked to the other shaft, rotates the visual information member (3) with itself, and guides said visual information member (3) in translation in the transverse direction (Y). According to the invention, the two shafts are concentric, the visual information member (3) is self-supporting, and said visual information member is longer than the guide member (5) in the transverse direction.
G01D 7/10 - Indication de la valeur de plusieurs variables simultanément utilisant un élément indicateur commun pour plusieurs variables donnant une indication dans un système de coordonnées
This invention relates to a contactless magnetic sensor for detecting a linear or angular position, comprising a moveable ferromagnetic element (1) the position of which is detected, and a stator assembly (2) itself comprising two ferromagnetic parts (3, 4), defining with the moveable ferromagnetic element (1) two respective air gaps (7, 8), a permanent magnet (5) and a magnetosensitive element (6) subjected to a magnetic field that depends on the position of the moveable ferromagnetic element (1) and designed to deliver a measurement signal that depends on the magnetic field to which it is subjected. According to the invention, the two ferromagnetic parts (3, 4) define there between a third air gap (9), the permanent magnet (5) being rigidly connected only to the first ferromagnetic part (3) and the magnetosensitive element (6) being placed in the third air gap (9).
G01D 5/14 - Moyens mécaniques pour le transfert de la grandeur de sortie d'un organe sensible; Moyens pour convertir la grandeur de sortie d'un organe sensible en une autre variable, lorsque la forme ou la nature de l'organe sensible n'imposent pas un moyen de conversion déterminé; Transducteurs non spécialement adaptés à une variable particulière utilisant des moyens électriques ou magnétiques influençant la valeur d'un courant ou d'une tension
44.
BIDIRECTIONAL MAGNETIC POSITION SENSOR HAVING FIELD ROTATION
The invention relates to a magnetic position sensor in at least two directions, said sensor comprising at least one magnetized element (1) and a probe (6) comprising at least two magneto-sensitive elements located substantially on the same point and each measuring one of the components of the magnetic field generated by said magnetized element (1), the magnetized element (1) being movable relative to said magneto-sensitive elements. Said probe (6) moreover comprises at least one processing circuit capable of carrying out angle and module calculations on the basis of algebraic combinations of the components of the magnetic field and providing at least two independent signals representing the position of the movable element along, respectively, one and the other of the two directions. According to the invention, the magnetization vector of the magnetized element (1) is variable in relation to the normal vector on the surface of the magnetized element that is placed opposite the probe (6) in at least one of the dimensions of said magnetized element so as to define a single position of said probe (6) in relation to said magnetized element (1).
G01D 5/14 - Moyens mécaniques pour le transfert de la grandeur de sortie d'un organe sensible; Moyens pour convertir la grandeur de sortie d'un organe sensible en une autre variable, lorsque la forme ou la nature de l'organe sensible n'imposent pas un moyen de conversion déterminé; Transducteurs non spécialement adaptés à une variable particulière utilisant des moyens électriques ou magnétiques influençant la valeur d'un courant ou d'une tension
45.
MAGNETIC ANGULAR POSITION SENSOR FOR A COURSE UP TO 360°
The invention relates to an angular position sensor comprising a moving element consisting of at least one essentially cylindrical permanent magnet (1) turning about it axis, at least two magnetosensitive elements (2, 3) and at least one processing circuit (4) furnishing a signal dependent on the absolute position of the moving element, characterized in that the magnetosensitive elements (2, 3) are located essentially at the same point and in that they measure the tangential component of the magnetic field and the radial and/or axial component of the magnetic field for furnishing 2 sinusoidal signals that are essentially 90° out of phase.
G01D 5/14 - Moyens mécaniques pour le transfert de la grandeur de sortie d'un organe sensible; Moyens pour convertir la grandeur de sortie d'un organe sensible en une autre variable, lorsque la forme ou la nature de l'organe sensible n'imposent pas un moyen de conversion déterminé; Transducteurs non spécialement adaptés à une variable particulière utilisant des moyens électriques ou magnétiques influençant la valeur d'un courant ou d'une tension
46.
ELECTROMAGNETIC MOTOR OR GEAR MOTOR ASSOCIATED WITH A ONE-WAY OR TWO-WAY MECHANICAL LOCKING AND UNLOCKING SYSTEM AND WITH AN ELASTIC RETURN SYSTEM
The invention concerns an electromagnetic motor (15) performing a rotary or linear stroke comprising at least one electrical power supply coil and having a rotor (11) driving an output shaft (21) associated with a system for mechanically locking and unlocking (1) the movement of the output shaft (21), said locking and unlocking system (1) including a first mobile part (3) integral with the rotor and a second mobile part forming a lock (6) integral with the output shaft (21), the assembly formed by the motor (15) and the locking and unlocking system (1) including an elastic return system capable of unlocking the locking system (1) and return the rotor (11) and the shaft (21) into a predefined position. The invention is characterized in that the elastic return system exerts, at least partly, its load on the rotor (11) of the motor (15), and in that the locking system is actuated in locked state when the motor is concurrently powered and the output shaft is subjected to a resistive load exceeding a threshold value.
H02K 7/10 - Association structurelle avec des embrayages, des freins, des engrenages, des poulies ou des démarreurs mécaniques
H02K 7/102 - Association structurelle avec des embrayages, des freins, des engrenages, des poulies ou des démarreurs mécaniques avec des freins à friction
47.
POSITION SENSOR WHICH IS INTENDED, IN PARTICULAR, FOR MEASURING STEERING COLUMN TORSION
The invention relates to a position sensor which is intended, in particular, for detecting a steering column torsion. The invention consists of: a first magnetic rotor structure (10) comprising a plurality of radially-oriented magnets; a second stator structure comprising two rings (23, 24) which extend into axially-oriented overlapping teeth (25, 26); and a third fixed collector structure (30) comprising two flux-closing parts which define at least one air gap in which at least one magneto-sensitive element is placed. The invention is characterised in that the flux-closing parts and the stator rings (23, 24) define therebetween a constant collection surface that is independent of the relative radial position of the two structures.
G01L 3/10 - Dynamomètres de transmission rotatifs dans lesquels l'élément transmettant le couple comporte un arbre élastique en torsion impliquant des moyens électriques ou magnétiques d'indication
G01L 5/22 - Appareils ou procédés pour la mesure des forces, du travail, de la puissance mécanique ou du couple, spécialement adaptés à des fins spécifiques pour la mesure de la force appliquée aux organes de commande, p.ex. organes de commande des véhicules, détentes
brevets