公开(公告)号：US11804742B2

公开(公告)日：2023-10-31

申请号：US17056155

申请日：2019-06-17

申请人： Whylot SAS

发明人： Loic Mayeur ,  Romain Ravaud

IPC分类号： H02K1/02 ,  H02K1/2795 ,  H02K1/30 ,  H02K15/03 ,  H02K16/04 ,  H02K21/24

CPC分类号： H02K1/2795 ,  H02K1/02 ,  H02K1/30 ,  H02K15/03 ,  H02K16/04 ,  H02K21/24 ,  H02K2213/12

摘要： The invention relates to a rotor (1) of an electromagnetic motor or generator having a body comprising an inner hub (2) which is concentric to a central axis (7) of rotation of the rotor (1), branches (3) extending radially with respect to the central axis (7) of rotation from the inner hub (2) towards a hoop (8) forming a circular outer periphery of the rotor (1), at least one magnet (10) being housed in each space delimited between two adjacent branches (3), each having a width which decreases with distance from the inner hub (2) and terminates by a tapered tip (3b) against the hoop (8). Each magnet is in the form of a magnet structure (10) consisting of a plurality of individual magnets (4) which are secured together by a fiber-reinforced insulating material, each individual magnet (4) being elongated in shape by extending in the axial direction of the rotor (1).

公开(公告)号：US20210313853A1

公开(公告)日：2021-10-07

申请号：US17056155

申请日：2019-06-17

申请人： WHYLOT

发明人： Loic MAYEUR ,  Romain RAVAUD

IPC分类号： H02K1/27 ,  H02K1/30 ,  H02K16/04 ,  H02K1/02 ,  H02K21/24 ,  H02K15/03

摘要： The invention relates to a rotor (1) of an electromagnetic motor or generator having a body comprising an inner hub (2) which is concentric to a central axis (7) of rotation of the rotor (1), branches (3) extending radially with respect to the central axis (7) of rotation from the inner hub (2) towards a hoop (8) forming a circular outer periphery of the rotor (1), at least one magnet (10) being housed in each space delimited between two adjacent branches (3), each having a width which decreases with distance from the inner hub (2) and terminates by a tapered tip (3b) against the hoop (8). Each magnet is in the form of a magnet structure (10) consisting of a plurality of individual magnets (4) which are secured together by a fiber-reinforced insulating material, each individual magnet (4) being elongated in shape by extending in the axial direction of the rotor (1).

公开(公告)号：US11128186B2

公开(公告)日：2021-09-21

申请号：US16494994

申请日：2018-03-20

申请人： WHYLOT SAS

发明人： Romain Ravaud

IPC分类号： H02K3/46 ,  H02K1/27 ,  H02K21/12 ,  H02K1/02 ,  H02K15/03 ,  H02K21/24 ,  H02K41/03 ,  H02K1/12 ,  H02K5/04 ,  H01F7/02 ,  H01F41/02 ,  H02K1/04 ,  H02K1/28 ,  H02K15/12 ,  H02K16/04 ,  H02K7/00

摘要： A motor or electromagnetic generator with a rotor (3) and at least one stator (1, 2), the rotor (3) having permanent magnets (12) rotating around a median shaft and the stator (1, 2) having windings (5). The rotor (3) comprises magnet structures forming magnet poles composed of a plurality of unit magnets (15), covering discs (17) being axially arranged on each of two opposite axial faces of the rotor (3), the covering discs (17) being made of a composite material, the covering discs (17) and the magnet structures (12) being coated in an outer coating layer of composite material defining the outer contour of said at least one rotor (3). The stator (1, 2) comprises concentric windings (5) comprising a series of blocks (4) with the windings (5) wound around each block (4), the blocks (4) being rigidly attached to each other.

公开(公告)号：US20210265884A1

公开(公告)日：2021-08-26

申请号：US17261625

申请日：2019-09-23

申请人： Whylot SAS

发明人： Loic MAYEUR ,  Romain RAVAUD

IPC分类号： H02K1/27 ,  H02K21/24 ,  H02K1/28

摘要： A rotor (1) of an axial-flux electromagnetic machine having a body comprising an internal hub (2) concentric to the axis of rotation (7). Branches (3) extend radially in relation to the axis of rotation (7) from the internal hub (2) toward a binding band (8) which forms an external circular rim of the rotor (1). In each space defined between two adjacent branches (3) there is a magnet structure (10) comprising a plurality of magnets (4). The body is constituted by a plurality of stacked layers of composite containing fibers bonded by a resin. The fibers of each layer are oriented in a different predetermined direction (F1, F2) for two adjacent and stacked layers. In addition, a covering skin is located on each of two opposite faces of the rotor body, made up of a plurality of stacked layers of composite containing fibers bonded by a resin.

公开(公告)号：US20170303038A1

公开(公告)日：2017-10-19

申请号：US15127884

申请日：2015-03-03

申请人： WHYLOT SAS ,  UNIVERSITE DU MAINE ,  CNRS

发明人： Etienne Gaviot ,  Mehran ERZA ,  Frédéric POLET ,  Lionel CAMBERLAIN ,  Romain RAVAUD

IPC分类号： H04R3/02 ,  H04R3/00

CPC分类号： H04R3/02 ,  H04R3/002 ,  H04R3/08

摘要： The present invention relates to an acoustic signal supply circuit of at least one loudspeaker (HP) incorporating a filtering device of the resonance peak of said at least one loudspeaker (HP) occurring at a given frequency, characterized in that the filtering device of the resonance peak of said at least one loudspeaker (HP) is incorporated either into the first instrumentation ground circuit or in the feedback loop, this filtering device being purely electrical in the form an impedance incorporated in the first instrumentation ground circuit or in the feedback loop, the impedance parameters being predetermined as a function of the resonance peak to be filtered of said at least one loudspeaker (HP).

公开(公告)号：US20170171660A1

公开(公告)日：2017-06-15

申请号：US15127851

申请日：2015-03-03

申请人： WHYLOT SAS ,  UNIVERSITE DU MAINE ,  CNRS

发明人： Etienne GAVIOT ,  Mehran ERZA ,  Frédéric POLET ,  Lionel CAMBERLAIN ,  Romain RAVAUD

IPC分类号： H04R3/08

CPC分类号： H04R3/08

摘要： The present invention relates to an acoustic signal supply circuit of at least one loudspeaker (HP), this circuit comprising a filtering device of the resonance peak occurring at a given frequency of the supply current, characterized in that the filtering device of the peak is incorporated in a first branch bypassing the intermediate circuit between at least two converters (A, A0), this filtering device being purely electrical in the form of an impedance (Z3) connected, on the one hand, at a point on the intermediate circuit and, on the other hand, to a ground instrumentation, the impedance being called RLC (Z3) for comprising at least one first resistor (R3), at least one first capacitor (C3) and at least one first inductor (L3) arranged in series, the parameters of the first resistor (R3), the first capacitor (C3) and the first inductor (L3) being predetermined as a function of the resonance peak to be filtered.

公开(公告)号：US20240296994A1

公开(公告)日：2024-09-05

申请号：US18574694

申请日：2022-06-24

申请人： RENAULT S.A.S ,  WHYLOT

发明人： Jere KOLEHMAINEN ,  Thierry LAURENT ,  Florian LOUBEAU

IPC分类号： H01F41/02 ,  H02K15/03

CPC分类号： H01F41/0286 ,  H02K15/03

摘要： A method for manufacturing an element having magnetic poles, includes:—supplying a magnetization block including a first main face and a second main face between them delimiting a magnetization-block thickness;—machining, over just part of the thickness of the magnetization block, a first set of initial slots, starting from the first main face, so that the magnetization block remains in one piece;—pouring a first connecting material into the initial slots;—machining a set of complementary slots, forming continuations of the initial slots of the first set over the entire thickness of the magnetization block, so as to form a plurality of individual magnets separate from one another, the individual magnets being held together by the first connecting material.

公开(公告)号：US20240195272A1

公开(公告)日：2024-06-13

申请号：US18556966

申请日：2022-04-28

申请人： RENAULT S.A.S. ,  WHYLOT

发明人： Jere KOLEHMAINEN

IPC分类号： H02K15/02 ,  H02K1/14

CPC分类号： H02K15/022 ,  H02K1/146

摘要： Disclosed is a method for manufacturing a stator for an axial-flux electric machine, the stator including a stator body, a plurality of teeth, and at least one coil formed of an electrically conductive wire, each tooth being formed of a first part and a second part, the method including steps of: obtaining a support part in which the teeth are each positioned in a precise attitude; forming an envelope of electrically insulating material intended to surround the second part of each tooth; winding the electrically conductive wire around the envelope; and fixing an end of the second part of each tooth to a face of the stator body.

公开(公告)号：US20240055921A1

公开(公告)日：2024-02-15

申请号：US18258179

申请日：2021-12-14

申请人： RENAULT S.A.S. ,  WHYLOT

发明人： Jere KOLEHMAINEN

IPC分类号： H02K1/2796 ,  H02K1/02 ,  H02K15/12 ,  H02K15/03

CPC分类号： H02K1/2796 ,  H02K1/02 ,  H02K15/12 ,  H02K15/03

摘要： Disclosed is an element with magnetic poles for the rotor of an axial flux electric machine, including an assembly of several individual magnets and a flange, at least a first part of which surrounds the assembly in order to immobilise the individual magnets in position. At least one part of the flange is made from a material including a mixture of polymer and magnet powder.

公开(公告)号：US20230223806A1

公开(公告)日：2023-07-13

申请号：US17922932

申请日：2021-05-12

申请人： WHYLOT

发明人： Vasile MIHAILA

IPC分类号： H02K1/2791 ,  H02K15/03

CPC分类号： H02K1/2791 ,  H02K15/03

摘要： Magnet pole (10) with a plurality of single magnets with variable cross sections
The present invention relates to a magnet pole (10) formed by a plurality of elongated single magnets grouped into a bundle, oriented magnetically longitudinally and extending parallel between a front face and a rear face of the magnet pole (10), and are connected to one another. A first group of single magnets (4) has a larger cross-section or a differently shaped cross-section than at least a second group of at least one single magnet (4 a), there being a greater number of single magnets (4) of the first group than the at least one single magnet (41) of the at least one second group.