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.

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).

Abstract: 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.

Abstract: 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).

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.

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).

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).

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).

Abstract: The invention relates to a unitary magnet (1) that has an elongate shape and an at least partially ovoid contour as the unitary magnet (1) comprises a first portion (1a) forming a body of the unitary magnet (1) that has a larger cross-section and extends over a greater portion of the length of the unitary magnet (1) than at least one second longitudinal end portion (1b) that points towards an associated longitudinal end of the magnet and has a decreasing cross-section towards the longitudinal end.

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).

Abstract: A permanent-magnet synchronous motor or generator with at least one rotor (2) and at least one stator (3, 8). The motor includes two rotors (2), four stators (3, 8) and a cooling system (7, 7a). The cooling system includes three cooling circuits (7, 7a), i.e. two outer circuits (7) which are each accommodated in a longitudinal outer wall of a casing (8), adjacent to an outermost stator (3, 8), for cooling said outermost stator (3, 8), and an intermediate circuit (7a) located between the two innermost stators (3, 8) in the motor for simultaneously cooling said two stators (3, 8), the central shaft (5) being common to the two rotors (2) which are connected to the central shaft (5) by mechanical means.

Abstract: 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).

Abstract: 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.

Abstract: A rotor for a motor or for a radial flux electromagnetic generator having a cylindrical support housing a plurality of magnets (4), characterised in that the cylindrical support comprises a cylindrical mesh (5a) having mesh elements each defining a recess (5) for a respective individual magnet (4), each recess (5) having internal dimensions that are just sufficient to allow the introduction of a individual magnet (4) in its interior while leaving a space between the recess (5) and the individual magnet (4) filled by a fibre-reinforced resin, the mesh (5a) being made from a fibre-reinforced insulating material, the rotor comprising a non-conductive composite layer coating the individual magnets (4) and the mesh (5a).

Abstract: 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.

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.

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).

Abstract: The invention relates to a unitary magnet (1) that has an elongate shape and an at least partially ovoid contour as the unitary magnet (1) comprises a first portion (1a) forming a body of the unitary magnet (1) that has a larger cross-section and extends over a greater portion of the length of the unitary magnet (1) than at least one second longitudinal end portion (1b) that points towards an associated longitudinal end of the magnet and has a decreasing cross-section towards the longitudinal end.

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.

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).