In a rotating electrical machine apparatus, a rotor portion provided in a cylindrical portion and a stator portion provided in a recessed portion in which the rotor portion is housed are aligned along the rotation axis of a rim such that a force is generated in a direction opposite to the direction of a load that acts along the rotation axis of the rim of loads that act on the rim following rotation of a blade.

A switched reluctance motor includes an upper housing; a stator assembly including a stator core coupled to the upper housing; a rotor assembly located inside the stator assembly and comprising a rotor core rotating together with a shaft; a lower housing coupled to a lower part of the stator core; a sensor magnet assembly coupled to an upper part of the shaft and rotating together with the shaft; and a hall sensor assembly installed inside the upper housing and installed at one side of the sensor magnet assembly.

A switched reluctance motor includes an upper housing; a stator assembly including a stator core coupled to the upper housing; a rotor assembly located inside the stator assembly and comprising a rotor core rotating together with a shaft; a lower housing coupled to a lower part of the stator core; a sensor magnet assembly coupled to an upper part of the shaft and rotating together with the shaft; and a hall sensor assembly installed inside the upper housing and installed at one side of the sensor magnet assembly.

An electric motor may comprise a rotor and a stator comprising rotor and stator teeth, respectively. A non-uniform angular spacing or grouping of rotor teeth may facilitate desired rotational speeds of the rotor.

An electric motor may comprise a rotor and a stator comprising rotor and stator teeth, respectively. A non-uniform angular spacing or grouping of rotor teeth may facilitate desired rotational speeds of the rotor.

An electrical motor comprising multiple inductive coils, and a method for using same, is disclosed. The inductive coils may be configured to conduct current bi-directionally. Terminals of the inductive coils may be coupled to a common node on a power bus coupled to a power supply. Current flowing in a first inductive coil from the power bus may be largely offset by current returned to the power bus from a second inductive coil.

A supercharger includes a magnetic flux switching motor and a wheel. The motor includes a rotor; a stator stores the rotor therein and includes stator projecting portions projecting inward in a radial direction from an internal circumferential portion toward the rotor; a field source provided in a field slot formed between the stator projecting portions to generate a magnetic field of a constant direction; an armature coil provided in an armature slot; and a controller applying a single-phase current to the armature coil and changing a direction of the applied single-phase current to change a direction of a magnetic field generated from the armature coil and rotate the rotor. The wheel is attached to the rotor, and rotates together with rotation of the rotor to compress the air.

The present disclosure relates to an electromechanical system comprising a toothed rotor and a stator segment. The stator segment comprises an armature coil defining a coil interior. The stator segment further comprises first and second stator portions, each stator portion comprising connected inner and outer radially extending poles. Each of the inner poles passes through the coil interior and each of the outer poles is provided outside of the coil interior. The stator segment further comprises a bridge spacing the stator portions and the bridge comprises a magnetic field generator arranged to generate a magnetic field between the stator portions.

A motor device includes a motor housing, a stator core having at least two poles fixedly installed in the stator housing symmetrically, a coil winding wound around the stator core, and an insulating coil holder for insulating the stator core from the coil winding, and the motor device further includes at least two pairs of magnetic steel structures cooperating with the stator core. All of the magnetic steel structures are fixedly connected to the periphery of the shaft coupling, and the shaft coupling is fixedly connected to the motor shaft. An electric toothbrush having the above motor device is further provided.

A motor device includes a motor housing, a stator core having at least two poles fixedly installed in the stator housing symmetrically, a coil winding wound around the stator core, and an insulating coil holder for insulating the stator core from the coil winding, and the motor device further includes at least two pairs of magnetic steel structures cooperating with the stator core. All of the magnetic steel structures are fixedly connected to the periphery of the shaft coupling, and the shaft coupling is fixedly connected to the motor shaft. An electric toothbrush having the above motor device is further provided.