The disclosure relates to a method for designing a stator segment for a stator of an m-phase synchronous reluctance machine with concentrated windings, the stator being divided into a stator segment or a plurality of stator segments and comprising a ferromagnetic base body with peripherally distributed tooth structures and a winding system mounted in the base body, which comprises, per stator segment, z tooth structures and a number of winding phases (U, V, W) corresponding to the number of phases m, each of said winding phases comprising a series connection and/or a parallel connection of a plurality of the concentrated windings, a rotor of the synchronous reluctance machine comprising a pole number p in a peripheral section corresponding to the stator segment.

A magnetic pole module and a rotor for a permanent magnet generator are provided. The magnetic pole module includes a base plate having a first surface and a second surface arranged opposite to each other, the base plate has a first center line extending in the first direction and a second center line extending in the second direction, the first direction is intersected with the second direction, the first center line is parallel to the central axis of the permanent magnet generator; at least one pair of magnetic steel components is fixed on the base plate, and each pair of magnetic steel components is symmetrically arranged on the first surface with respect to the second center line, each magnetic steel component includes multiple magnetic steels arranged side by side along a side of the first direction from the second center line and arranged at a predetermined angle in the second direction.

A magnetic pole module and a rotor for a permanent magnet generator are provided. The magnetic pole module includes a base plate having a first surface and a second surface arranged opposite to each other, the base plate has a first center line extending in the first direction and a second center line extending in the second direction, the first direction is intersected with the second direction, the first center line is parallel to the central axis of the permanent magnet generator; at least one pair of magnetic steel components is fixed on the base plate, and each pair of magnetic steel components is symmetrically arranged on the first surface with respect to the second center line, each magnetic steel component includes multiple magnetic steels arranged side by side along a side of the first direction from the second center line and arranged at a predetermined angle in the second direction.

A rotor structure includes a rotor body and a plurality of magnets. The rotor body has a plurality of surrounding magnet-setting areas, and each magnet setting area has a first magnet slot and a second magnet slot symmetrically arranged to a centripetal axis. A first outer end of the first magnet slot and a second outer end of the second magnet slot are close to the centripetal axis and rotor's outer edge. A first outer end of the first magnet slot and a second outer end of the second magnet slot are distant to the centripetal axis and rotor's outer edge. The outer edge has a plurality of notches intersected by the corresponding centripetal axes. The magnets are respectively fixed to the first magnet slots and the second magnet slots of the magnet-setting areas.

An electric power generator comprises a rotor and a plurality of stators arranged coaxially and concentrically about a central axis. There is an inner stator provided radially inwardly of the rotor separated by an inner airgap and an outer stator provided radially outwardly of the rotor separated by an outer airgap. The rotor includes a plurality of magnetic pole structures configured to provide or generate a magnetic field having plurality of magnetic poles. The rotor is not of uniform cross-sectional thickness, wherein: an inner surface of the rotor bulges inwardly at the pole structures, the inner airgap being non-uniform as it is radially shorter at the pole structures and longer in between the pole structures; and an outer surface of the rotor bulges outwardly at the pole structures, the outer airgap being non-uniform as it is radially shorter at the pole structures and longer in between the pole structures.

An example system includes a dynamo-electric machine. The dynamo-electric machine includes a rotor that is cylindrical and that is configured for rotation and a stator that is arranged relative to the rotor. The stator has a stepped configuration that defines a first diameter for the stator and a second diameter for the stator. The first diameter is greater than the second diameter. Zones of the stator at the first diameter hold direct-axis (D-axis) windings and zones of the stator at the second diameter hold quadrature axis (Q-axis) windings. An airgap between the rotor and the Q-axis windings is greater than an airgap between the rotor and the D-axis windings.

A stator having a stator core which has two end sides disclosed. A multiplicity of grooves are configured in the stator core. A stator winding occupies a plurality of winding zones in the grooves, a number of N strands has a number of 2.Math.P poles, and the number of grooves is 2.Math.P.Math.N.Math.q, where q≥2. Each winding zone extends across at least q+1 of the grooves, and each winding zone is radially subdivided into first to L.sup.th layers. The layers configure first to (L/2).sup.th double layers, and a number of the double layers is less than the number of the other double layers. Each winding zone in the circumferential direction is subdivided into first to q.sup.th sub-winding zones, and a respective phase winding for one of the strands has at least one sub-winding which configures a current path and comprises internal portions that are disposed within the grooves.

Drive equipment for an electric vehicle is disclosed with a stator which is configured for generating a magnetic rotating field, a stator core in which a multiplicity of slots disposed in the circumferential direction are configured, and a stator winding which occupies a plurality of winding zones in the slots. Each winding zone in a cross-sectional plane that is perpendicular to the longitudinal axis by way of a centric radial division is sub-divided into a first side and a second side. Converter equipment converts magnetic energy of the rotating field into a rotating output movement of the drive equipment. The converter equipment has a rotor which conjointly with the stator forms a rotating electric machine such that the rotor is able to be set in a rotating rotor movement which, as a function of the rotating field, selectively has one of two opposite rotation directions.

An attachment structure for a vehicle motor is applied for the purpose of attaching a vehicle motor to in-vehicle equipment. The attachment structure for a vehicle motor is provided with an axial gap motor that includes a rotor and a stator facing each other in the axial direction. The motor is attached to the in-vehicle equipment in a mode in which the axial direction is perpendicular to the vertical direction.

An attachment structure for a vehicle motor is applied for the purpose of attaching a vehicle motor to in-vehicle equipment. The attachment structure for a vehicle motor is provided with an axial gap motor that includes a rotor and a stator facing each other in the axial direction. The motor is attached to the in-vehicle equipment in a mode in which the axial direction is perpendicular to the vertical direction.