Systems and methods relate to a vertical takeoff and landing (VTOL) platform that can include a stator and a rotor magnetically levitated by the stator. The rotor and stator can be annular, such that the rotor rotates about a rotational axis. The stator can include magnets that provide guidance, levitation, and drive forces to drive the rotor, as well as to control operation of rotor blades of the rotor that can be independently rotated to specific pitch angles to control at least one of lift, pitch, roll, or yaw of the VTOL platform. Various controllers can be used to enable independent and redundant control of components of the VTOL platform.

A stator assembly includes a stator core defined by an inner periphery and an outer periphery, and a plurality of coils. The stator core includes a stator yoke. Each coil of the plurality of coils includes a first set of segments and a second set of segments each extending between the inner periphery and the outer periphery of the stator core. The first set of segments is arranged to form a first coil portion having a “V” shape and the second set of segments is arranged to form a second coil portion having a “V” shape. The first coil portion and the second coil portion each have a vertex and two ends. The ends of the first coil portion are coupled to the ends of the second coil portion. Other example stators, and example dynamoelectric machines and compressors including one or more stators are also disclosed.

A system for a rotor with directional magnetic field configured for use in electric aircraft motor that includes a magnet array having an outer cylindrical surface, an inner cylindrical surface, an upper edge, and a lower edge, which further includes a plurality of magnets, where the plurality of magnets is configured to create a directional magnet field and an electrically insulating epoxy, where the electrically insulating epoxy envelops at least a portion of the plurality of magnets.

A system for a rotor with directional magnetic field configured for use in electric aircraft motor that includes a magnet array having an outer cylindrical surface, an inner cylindrical surface, an upper edge, and a lower edge, which further includes a plurality of magnets, where the plurality of magnets is configured to create a directional magnet field and an electrically insulating epoxy, where the electrically insulating epoxy envelops at least a portion of the plurality of magnets.

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.

The invention relates to an electric motor (1), comprising at least a stator (2), which extends between a first end face (3) and a second end face (4) along an axial direction (5) and has an annular yoke (6) on the first end face (3) and starting from the yoke (6) a plurality of cores (7), which each extend along the axial direction (5) over a first length (8) to the second end face (4) and are arranged adjacent to one another along a circumferential direction (9), wherein a coil (10) is arranged on each core (7), which coil extends starting from the yoke (6) along the axial direction (5) over a second length (11) toward the second end face (4), wherein the second length (11) is shorter than the first length (8), so that a portion (12) of each core (7) extends along the axial direction (5) beyond the coil (10) concerned; wherein the motor (1) additionally comprises at least one first rotor (13) which is arranged, at least on the second end face (4) along the axial direction (5) between the coils (10) and the second end face (4).

A technique by which the magnetic flux of the magnetic pole facing the stator of the magnet can be further increased in a rotor, is provided. An electric motor according to the present disclosure includes a stator 10; a rotor 20 facing the stator 10 in an axial direction (first direction) and configured to be rotatable in a circumferential direction (second direction) that is orthogonal to the axial direction; and a short-circuit reduction member 25, 26, wherein the rotor 20 includes a main magnet 22 having a first magnetic pole on a surface facing the stator 10; an auxiliary magnet 23, 24 arranged adjacent to the main magnet 22 and having a second magnetic pole and a third magnetic pole that is different in polarity from the second magnetic pole, and configured to increase a magnetic flux of the first magnetic pole, and wherein the auxiliary magnet 23, 24 is arranged adjacent to the main magnet 22 in a radial direction (third direction) that is orthogonal to the axial direction, and the short-circuit reduction member 25, 26 is provided at a portion around the auxiliary magnet 23, 24 facing the auxiliary magnet 23, 24 in parallel with a virtual line connecting the second magnetic pole and the third magnetic pole, to reduce a short-circuit of a magnetic flux between the second magnetic pole and the third magnetic pole.

A technique by which the magnetic flux of the magnetic pole facing the stator of the magnet can be further increased in a rotor, is provided. An electric motor according to the present disclosure includes a stator 10; a rotor 20 facing the stator 10 in an axial direction (first direction) and configured to be rotatable in a circumferential direction (second direction) that is orthogonal to the axial direction; and a short-circuit reduction member 25, 26, wherein the rotor 20 includes a main magnet 22 having a first magnetic pole on a surface facing the stator 10; an auxiliary magnet 23, 24 arranged adjacent to the main magnet 22 and having a second magnetic pole and a third magnetic pole that is different in polarity from the second magnetic pole, and configured to increase a magnetic flux of the first magnetic pole, and wherein the auxiliary magnet 23, 24 is arranged adjacent to the main magnet 22 in a radial direction (third direction) that is orthogonal to the axial direction, and the short-circuit reduction member 25, 26 is provided at a portion around the auxiliary magnet 23, 24 facing the auxiliary magnet 23, 24 in parallel with a virtual line connecting the second magnetic pole and the third magnetic pole, to reduce a short-circuit of a magnetic flux between the second magnetic pole and the third magnetic pole.

A stator for an electric machine is provided, the stator comprising at least three first plates at a first side of the stator, at least three teeth, each tooth being mechanically connected to a respective one of the first plates, and at least one second plate at a second side of the stator facing away from the first side, wherein the stator has, at least in some places, the shape of a ring having an outer side and an inner side, an electrical conductor is assigned to each tooth, and for each tooth, the respective electrical conductor is arranged at least at one side of the tooth which points towards the outer side of the stator and at one side of the tooth which points towards the inner side of the stator. Further, a rotor for an electric machine and an electric machine are provided.

A stator for an electric machine is provided, the stator comprising at least three first plates at a first side of the stator, at least three teeth, each tooth being mechanically connected to a respective one of the first plates, and at least one second plate at a second side of the stator facing away from the first side, wherein the stator has, at least in some places, the shape of a ring having an outer side and an inner side, an electrical conductor is assigned to each tooth, and for each tooth, the respective electrical conductor is arranged at least at one side of the tooth which points towards the outer side of the stator and at one side of the tooth which points towards the inner side of the stator. Further, a rotor for an electric machine and an electric machine are provided.