公开(公告)号：US20240128002A1

公开(公告)日：2024-04-18

申请号：US18276118

申请日：2022-02-02

Applicant: Whylot SAS

Inventor： Vasile MIHAILA ,  Romain RAVAUD

IPC: H01F7/02 ,  H01F41/02 ,  H02K1/02

CPC classification number: H01F7/021 ,  H01F41/0253 ,  H02K1/02

Abstract: A Magnet structure with a plurality of individual magnets having a reinforced connection. This invention relates to a magnet structure (2) in three dimensions having cutouts (4 to 7) extending along a height of the magnet structure (2) and forming groups of cutouts. Each cutout is interrupted, forming two parts (4, 6; 5, 7) in the height direction, leaving a material-filled gap between them. The gaps of one group form a heel portion (8a, 8b), the cutouts (4 to 7) delimiting between them individual magnets (3) connected to one another by the heel. At least one gap between one cutout of one group is at a height different from at least one gap between a cutout of another group so that portions of them extend at least partly over different height levels.

公开(公告)号：US20190013707A1

公开(公告)日：2019-01-10

申请号：US16066867

申请日：2017-01-06

Applicant: WHYLOT SAS

Inventor： Vasile MIHAILA ,  Serghei SAVIN ,  Huguette TIEGNA ,  Vincent PLOIX ,  Romain RAVAUD

IPC: H02K1/18 ,  H02K1/14 ,  H02K1/27 ,  H02K21/24

Abstract: This invention relates to a stator for an axial flux electromagnetic machine, with the stator forming a ring (1) having two substantially circular faces (1a, 1b) connected by a thickness comprising windings (3) regularly distributed in the ring (1). Each winding (3) is carried by a unit portion (4) having a core (5) around which the winding (3) is wound. The unit portions (4) are arranged concentrically edge-to-edge with respect to one another and have securing means (12, 12a, 14) with a support member (6) which is part or not of a casing housing the ring (1) carried either by axial and lateral faces of each unit portion (4) edge-to-edge or by at least one upper or lower face of with each unit portion being part of a substantially circular face.

公开(公告)号：US20240022129A1

公开(公告)日：2024-01-18

申请号：US18256886

申请日：2021-12-03

Applicant: Whylot SAS

Inventor： Vasile MIHAILA

IPC: H02K3/24 ,  H02K1/27 ,  H02K1/12

CPC classification number: H02K3/24 ,  H02K1/27 ,  H02K1/12

Abstract: The invention relates to a stator of an electric motor stator equipped with coils (3, 3a, 3b) and comprising an oil cooling system for the coils. The coils (3, 3a, 3b) are arranged leaving a gap (15) between them and defining inside and outside circumferences. The system comprises oil inlet and outlet manifolds pierced by orifices to send or recover oil to or from the coils. Each inlet orifice (10) is associated with a respective coil (3, 3a, 3b), one of the manifolds surrounding the inside circumference while the other manifold surrounds the outside circumference, a flow of oil exiting each inlet orifice (19) circulating mostly in the gap (15) between its associated coil (3) and at least one of the two adjacent coils (3a, 3b) and then exiting via an outlet orifice.

公开(公告)号：US20210218322A1

公开(公告)日：2021-07-15

申请号：US16769180

申请日：2019-01-07

Applicant: Whylot SAS

Inventor： Vasile MIHAILA ,  Loic MAYEUR ,  Romain RAVAUD

IPC: H02K16/04 ,  H02K1/18 ,  H02K1/27 ,  H02K1/28 ,  H02K5/20 ,  H02K7/00 ,  H02K9/197 ,  H02K3/46

Abstract: PROBLEM TO BE SOLVED: To provide an axial gap motor excellent in heat-dissipation properties, and a stator core and a stator suitable for components of the motor. ;SOLUTION: The stator core 10 is provided with an annular yoke part 11, and a plurality of columnar teeth 12 protruding on one face of the yoke part 11. A stator is configured by arranging a coil C, with coils wound thereon, on the outer periphery of each tooth 12. A refrigerant groove 14 is provided on the protruding side face of each tooth 12 in the yoke part 11. The refrigerant grooves 14 increase contact areas between the core 10 and a refrigerant, thereby effectively cooling the core 10. Consequently, the core 10 is excellent in heat-dissipation properties. COPYRIGHT: (C)2009,JPO&INPIT

公开(公告)号：US20200295622A1

公开(公告)日：2020-09-17

申请号：US16753686

申请日：2018-11-05

Applicant: Whylot SAS

Inventor： Bruno CARSALADE ,  Romain RAVAUD ,  Vasile MIHAILA

IPC: H02K5/20 ,  H02K9/19 ,  H02K11/33 ,  H02K16/04 ,  B60K1/00

Abstract: The present invention relates to a motor (M) or axial flux electromagnetic generator with at least one rotor and at least one stator housed in a housing (1), the housing (1) having internally a cooling fluid circuit and surrounding the motor (M) while allowing only an end portion of the driveshaft of the rotor to protrude therefrom, the electromagnetic motor (M) or the generator having electronic control and power means (4). The cooling circuit has a common element that cools at least one rotor and one stator and also the electronic control and power means (4).

公开(公告)号：US20200091782A1

公开(公告)日：2020-03-19

申请号：US16494998

申请日：2018-03-20

Applicant: WHYLOT SAS

Inventor： Vasile MIHAILA ,  Loic MAYEUR ,  Huguette TIEGNA ,  Romain RAVAUD

IPC: H02K1/04 ,  H01F7/02 ,  H01F41/02 ,  H02K1/27 ,  H02K1/28 ,  H02K16/04 ,  H02K41/03 ,  H02K21/24 ,  H02K15/03 ,  H02K15/12

Abstract: A three-dimensional magnet structure (6) made up of a plurality of individual magnets (4), the magnet structure (6) having a thickness that forms its smallest dimension, the magnet structure (6) incorporating at least one mesh (5a) exhibiting mesh cells each one delimiting a housing (5) for a respective individual magnet (4), each housing (5) having internal dimensions just large enough to allow an individual magnet (4) to be inserted into it, the mesh cells being made from a fibre-reinforced insulating material, characterized in that a space is left between the housing (5) and the individual magnet (4), which space is filled with a fibre-reinforced resin, the magnet structure (6) comprising a non-conducting composite layer coating the individual magnets (4) and the mesh structure (5a).

公开(公告)号：US20220158511A1

公开(公告)日：2022-05-19

申请号：US17587318

申请日：2022-01-28

Applicant: WHYLOT SAS

Inventor： Vasile MIHAILA ,  Loic MAYEUR ,  Huguette TIEGNA ,  Romain RAVAUD

IPC: H02K1/2793 ,  H02K3/46 ,  H02K21/12 ,  H02K1/02 ,  H02K15/03 ,  H02K21/24 ,  H02K41/03 ,  H02K1/12 ,  H02K1/27 ,  H02K5/04 ,  H01F7/02 ,  H01F41/02 ,  H02K1/04 ,  H02K1/28 ,  H02K15/12 ,  H02K16/04

Abstract: A three-dimensional magnet structure (6) made up of a plurality of individual magnets (4), the magnet structure (6) having a thickness that forms its smallest dimension, the magnet structure (6) incorporating at least one mesh (5a) exhibiting mesh cells each one delimiting a housing (5) for a respective individual magnet (4), each housing (5) having internal dimensions just large enough to allow an individual magnet (4) to be inserted into it, the mesh cells being made from a fibre-reinforced insulating material, characterized in that a space is left between the housing (5) and the individual magnet (4), which space is filled with a fibre-reinforced resin, the magnet structure (6) comprising a non-conducting composite layer coating the individual magnets (4) and the mesh structure (5a).

公开(公告)号：US20210218300A1

公开(公告)日：2021-07-15

申请号：US16769182

申请日：2019-01-18

Applicant: Whylot SAS

Inventor： Romain RAVAUD ,  Loic MAYEUR ,  Vasile MIHAILA

IPC: H02K1/27 ,  H02K1/28 ,  H01F7/02

Abstract: A unitary magnet (1) that has an elongate shape including a first longitudinal portion (1a) having an outer contour with shapes (6) that are recessed in the direction of the inside of the unitary magnet (1), where the recessed shapes (6) extend over at least part of a length of the first portion (1a) and/or extending, over at least part of the perimeter of the unitary magnet, (1) transversely to a longitudinal axis of the unitary magnet near at least one longitudinal end of the unitary magnet (1).

公开(公告)号：US20200328634A1

公开(公告)日：2020-10-15

申请号：US16754058

申请日：2018-12-13

Applicant: Whylot SAS

Inventor： Vasile MIHAILA ,  Romain RAVAUD

IPC: H02K1/14 ,  H02K15/02 ,  H02K16/04

Abstract: The invention relates to a stator (8) for an electromagnetic motor or generator comprising windings (4) and a magnetic circuit, the stator (8) comprising a yoke with a circular or polygonal shape and winding support teeth (3). Each winding (4) rests on a tooth (3) while at least partly surrounding a winding support (13, 14), each winding support (13, 14) comprising or being associated with snap snap-fitting means (15′) that cooperate with complementary snap-fitting means (3′) supported by a tooth (3) associated with the winding support (13, 14) so that the winding support (13, 14) is fastened to the associated tooth (3).

公开(公告)号：US20200036236A1

公开(公告)日：2020-01-30

申请号：US16494999

申请日：2018-03-21

Applicant: WHYLOT SAS

Inventor： Vasile MIHAILA ,  Loic MAYEUR ,  Huguette TIEGNA ,  Romain RAVAUD

IPC: H02K1/02 ,  H02K21/24 ,  H02K41/03 ,  H02K15/03

Abstract: A magnet structure comprising a plurality of individual magnets in the form of an elongate block (4) having a length (4a) extending beyond the thickness of the magnet structure. The elongate block (4) is cylindrical or polyhedral in shape with at least one flat longitudinal face (4b) orientated towards a working surface of the magnet structure, the elongate block (4) having a line of magnetisation extending along its length. The individual magnets (4) being positioned at a distance from each other in the magnet structure in order to be electrically isolated from each other, the length (4a) of each block (4) being greater than the diameter of the flat longitudinal face (4b) for a cylindrical block (4) or with a larger diagonal (4c) connecting two apexes of said longitudinal face (4b) for a block (4) in the form of a polyhedron.