An outer-rotor brushless direct-current (BLDC) motor is provided including a stator core having an aperture extending therethrough, a stator mount including an elongated cylindrical member projecting into the aperture of the stator core, an outer rotor, and a rotor mount including an outer rim arranged to couple to the outer rotor and an inner body supporting an outer race of a motor bearing. A piloting pin is provided including a rear portion received within the hollow portion of the elongated cylindrical member of the stator mount and a front portion received within the inner race of the motor bearing.

A method for manufacturing an axial flux machine adapted for generating a magnetic flux along the axis of rotation, includes the manufacturing of one or more stators, having the following steps: providing a surface comprising one or more flat support surfaces perpendicular to the axis of rotation; positioning one or more boundary elements, individual stator elements, and a ring element on the one or more support surfaces. At least one of the boundary elements is a cooling element adapted for conducting heat. The stator elements each has a ferromagnetic core and an electric winding wound around the ferromagnetic core, and filling the empty space between the outer circumference, the stator elements and the ring element with an electrically insulating filling material.

A motor includes a shaft, a bearing supporting the shaft, an armature disposed radially outward of the bearing, a bracket to which the bearing and the armature are fixed, a covered cylindrical rotor connected to the shaft, and a bus bar unit. The armature includes a core back, teeth extending radially outward from the core back, an insulator covering surfaces of the, and a defined by a wire wound from above the insulator around the teeth. The bus bar unit includes bus bars to which the coils are connected, a bus bar holder holding the bus bars, and a bus bar cover covering portion of the bus bars.

A motor includes a shaft, a bearing supporting the shaft, an armature disposed radially outward of the bearing, a bracket to which the bearing and the armature are fixed, and a rotor connected to the shaft. The bracket includes a bracket bottom portion covering a lower side of the armature, and a terminal holding portion extending radially outward from an outer peripheral portion of the bracket bottom portion. The terminal holding portion includes a plate-shaped holding portion main body connected to the outer peripheral portion of the bracket bottom portion, a terminal disposed on an upper surface of the holding portion main body, and a protrusion portion projecting downward from a lower surface of the holding portion main body at a same position in a radial direction as that of the terminal, or radially outward of the terminal.

An armature includes a multiphase stator winding assembly that includes multiphase stator windings. Each of the multiphase stator windings includes a plurality of winding segments. Each of the winding segments includes a conductor. The conductor of each of the winding segments of each of the multi-phase windings is wound along an armature core while being engaged with a corresponding at least one of first protrusions and a corresponding at least one of second protrusions, and extending along one of radially inner and outer peripheral surfaces of the armature core. The first protrusions extend axially from a first end plate of the armature core, and the second protrusions extend axially from a second end plate of the armature core.

A system for powering an electronic device within a tire is provided, the system comprising: a generator electrically connected to an electrically conductive wheel, the tire being mounted upon the wheel; the tire including bead portions, sidewalls, shoulders, a tread oriented in a trend region, an inner surface, and a metallic cord oriented within an interior of the tire; at least one conductive element extending from a bead portion and piercing into the interior of the tire and electrically connecting to the metallic cord; at least one electronic device within the vehicle tire; and at least one ground path extending through a thickness of the vehicle tire from the inner surface to an exterior surface in a contact patch of the tread; and wherein the at least one electronic device is electrically connected to the metallic cord and the at least one ground path.

Embodiments disclosed herein describe methods for an improved electrical connector system.

Systems and methods for producing hydrocarbons from a subterranean well include an electrical submersible pump assembly with a motor. The motor has a motor housing and a stator is located within the motor housing. The stator has a stator body with an interior cavity. A rotor assembly is located within the interior cavity of the stator. The rotor assembly includes a rotor shaft, a rotor member, and an intermediate rotor bearing assembly. The rotor member and the intermediate rotor bearing assembly circumscribe the rotor shaft. The rotor shaft extends along the central axis of the stator. A liner is located along an interior surface of the interior cavity, the liner being a thin walled member that is secured to the motor housing and seals the stator body from a wellbore fluid. The liner has a polygonal cross section.

One embodiment relates to a motor comprising: a hollow first shaft; a rotor coupled to the first shaft; a stator arranged outside the rotor; a hollow second shaft arranged inside the first shaft; a first planetary gear part which comes in contact with the inner circumferential surface of the first shaft; a second planetary gear part which comes in contact with the inner circumferential surface of the second shaft; and a third shaft for connecting the first planetary gear part and the second planetary gear part, wherein the rotation of the first shaft is decelerated by the first planetary gear part and the second planetary gear part and then delivered to the second shaft. Accordingly, an RPM that is lower than the RPM generated by the output of the motor can be applied to an output shaft of a steering shaft.

The invention is an electric vehicle (100) or specifically an electric motorcycle (100), which comprises an electric motor (3) mounted on at least one wheel (2), said electric motor (3) comprising a rotor (4) fitted on the outer side and a stator (5) fitted on the inner side. The electric motor's (3) stator (5) is arranged to function as an axle for said wheel (2) in such a way that the stator (5) is adapted to bear the loads between said wheel (2) and the remaining structure of the vehicle (100).