Abstract: A haptic generator device according to an embodiment of the present disclosure can include a stator, a rotor, a magnet, and a coil. The stator can include a stopper. The rotor can rotate in relation to the stator and can have a protrusion. The magnet can be provided on one of the rotor and the stator, where multiple magnets can be provided. The coil can be provided on the other of the rotor and the stator and can interact with the magnet to generate a rotational force. The rotor can perform an oscillating rotational movement within a 360-degree range. While the rotor is rotating in a first direction, a rotational movement of the rotor can be forcibly halted or can be rotated in a second direction opposite to the first direction to generate a rotational inertia vibration before the protrusion of the rotor collides with the stopper of the stator.

Abstract: A conveyance apparatus includes a stator including a plurality of coils arranged along a first direction and a mover. The mover moves along the plurality of coils and includes a first magnet group including a plurality of first magnets arranged to face the plurality of coils along the first direction, and a second magnet group including a plurality of second magnets arranged to face the plurality of coils along a second direction intersecting with the first direction. At least one of the plurality of coils includes a core, a wire-wound portion wound around the core, and a yoke. The yoke is adjacent to an outer periphery of a portion of the wire-wound portion along the first direction and extends in the first direction.

Abstract: An actuator (12) for a personal care appliance (10) having an eccentric core (21) to preload the actuator (12) to prevent rattling caused by detrimental reactionary forces. The eccentric core (21) includes a pole assembly (24) radially extending from a spindle 22 having at least a first set (25-1) and a second set (25-2) of pole members. The first set (25-1) has a greater length as measured from the center of the spindle 22 than the second set (24-2), reducing the magnet gap on one side of the spindle (22) to create an eccentric core and preload the actuator (12). Alternatively, the preload can be mechanically created by a set of bearings (28) disposed within housing (18) of the actuator 12, where the bearings (28) have a centerline (A3) offset from the principal axis (A1) of the housing (18).

Abstract: An electrically and mechanically driven automotive accessory including a housing, an electric motor, a pulley, and a pulley assist mechanism. The electric motor comprises a stator assembly that is mounted to the housing and a rotor assembly that is mounted to a shaft. The electric motor creates a primary torque flow path that drives rotation of the rotor assembly relative to the stator assembly. The pulley is rotatable relative to the shaft and the rotor assembly. The pulley assist mechanism includes a plurality of claw-pole structures that are arranged circumferentially about the rotor assembly and an electromagnet that is configured to induce a magnetic field between the claw-pole structures and the pulley, which creates a secondary torque flow path between the pulley and the rotor assembly.

Abstract: An electric machine includes a stator defining multiple stator poles with associated stator windings configured to receive a stator current. The electric machine also includes a rotor defining multiple fixed rotor poles with associated rotor windings, wherein the rotor defines a field energizable by magnetic fields produced by the stator windings when receiving the stator current to produce relative motion between the rotor and the stator and wherein the rotor is maintained in synchronicity with the magnetic fields produced by the stator during operation of the electric machine. The electric machine also includes a rectification system configured control against an alternating current being induced in the rotor poles as the field is energized by magnetic fields produced by the stator windings when receiving the stator current.

Abstract: A canned motor device includes a base, a fixed seat, a motor unit and a motor cover. Each of the base and the fixed seat is formed in a shape of a hollow cylinder that surrounds an axis. The base has an inner base surface surrounding the axis and defining an accommodating space. The fixed seat is disposed in the accommodating space and has an inner seat surface, an outer seat surface, a plurality of recesses and a plurality of first heat-dissipating fins. The recesses are indented from the outer seat surface and extend toward the inner seat surface. Each of the first heat-dissipating fins is located between two adjacent ones of the recesses.

Abstract: A two-phase bipolar step motor, comprises a rotor having a plurality of pairs of rotor poles of alternating magnetic polarity, and a stator having four primary energizable stator poles with conductive windings around those primary stator poles and four passive inter-poles located uniformly between every adjacent pair of primary stator poles, the passive inter-poles lacking any conductive windings. Both 18° steppers with five pairs of rotor poles and 30° steppers with three pairs of rotor poles are provided. Also provided are both PM hybrid mix steppers with 2D magnetic flux paths and hybrid steppers with 3D magnetic flux paths having an axial component. In each case, the overall lengths of the flux paths are substantially reduced from conventional designs resulting in improved motor efficiency.

Abstract: An integrated electromechanical and hydraulic system is disclosed which includes an electric machine, the electric machine includes a casing, a stator adapted to remain stationary within the casing, one or more electrically insulated windings coupled to the stator, a rotor separated from the stator and the one or more windings by a radial diamagnetic gap, electrical power couplings, and a first mechanical power couplings, and a hydraulic machine also disposed in the housing, the hydraulic machine having hydro-mechanical couplings as well as a second mechanical power couplings, wherein the second mechanical power couplings are coupled to the first mechanical power couplings.

Abstract: An axial flux motor includes: a stator having a first side and a second side opposite the first side, the stator including: N stator core components on the first side, where N is an integer greater than two; and pole shoes attached to radial sides of the N stator core components, N slot openings between adjacent ones of the pole shoes, where each of the N slot openings extends in at least one direction non-radially on the first side; and a rotor including a third side and M permanent magnets on the third side, where the first side is parallel to the third side, and where M is an integer greater than two.

Abstract: A motor unit includes a motor including a rotor and a stator, a gear connected to the rotor, a housing including a housing space to house the motor and the gear, oil in a vertically lower region of the housing space, and an oil passage to lead the oil from the vertically lower region of the housing space to be fed to the motor. The housing space includes a motor chamber to house the motor; and a gear chamber to house the gear. The housing includes a partition to divide the motor chamber and the gear chamber. A bottom portion of the motor chamber is higher than a bottom portion of the gear chamber. A portion of the oil fed to the motor is in a vertically lower region of the motor chamber. A vertically lower region of the partition includes a partition opening to bring the gear chamber and the motor chamber into communication with each other.

Abstract: A spindle motor is provided, the motor comprising: a base plate, a PCB on the base plate, a bearing assembly arranged on the base plate, a stator coupled to a periphery of the bearing assembly, a rotor rotationally coupled to the bearing assembly, the rotor including a yoke and a magnet, and a rotation shaft rotationally coupled to the bearing assembly. The base plate includes a planar portion and a protruding portion arranged along with a periphery of the yoke, the protruding portion being apart from the yoke. The base plate is partially covered with the PCB in a region where the stator is arranged. And, a height from the planar portion to an upper surface of the protruding portion is smaller than a height from the planar portion to a lower surface of the periphery of the yoke.

Abstract: Provided is a segment-core coupled body, including a plurality of segment cores each including a core back and a tooth; and a plurality of coupling portions configured to couple the core backs to one another, wherein the plurality of segment cores and the plurality of coupling portions are each a laminated body of magnetic sheets, wherein the plurality of coupling portions each include: a posture holding portion adjacent to a gap defined between adjacent core backs; a first thin portion configured to couple one corner portion of the adjacent core backs and the posture holding portion; and a second thin portion configured to couple another corner portion of the adjacent core backs and the posture holding portion, and wherein, the posture holding portion projects toward a radially outer side with respect to the adjacent core backs.

Abstract: A vertical electric machine comprises a specific structure that defines a double box construction for normalizing the vertical electric machine structure such that its two reed critical frequencies occur at a same frequency. The double box construction includes a first stiffness member having a first side wall in a lateral “X” direction and a second stiffness member having a second side wall in a lateral “Y” direction such that the second side wall is rotated 90 degrees relative to the first side wall. The first stiffness member and the second stiffness member are configured to produce equal stiffness in both lateral directions “X” and “Y”.

Abstract: A radial-flux rotary electric machine having a first end at one axial extreme and a second end at another axial extreme, comprising: a fluid input for receiving coolant at the first end of the machine; a rotor comprising a radial impeller at the first end of the machine in fluid communication with the fluid input, and a plurality of permanent magnets with a helical fluid conduit thereunder in fluid communication with the impeller; a stator having a plurality of slots with a fill factor of between zero and unity to define axial fluid channels in the slots, the fluid channels being in fluid communication with the helical fluid conduit at the second end of the machine; a fluid output in fluid communication with the fluid channels.

Abstract: A fan motor suitable for use in an electronic device, such as a consumer electronic device, is disclosed. The fan motor includes a stator and a rotor. In order to minimize a varying torque applied to the rotor, the stator includes modifications. For example, the stator includes stator teeth, each with an arc defined by a radius of curvature that varies. The radius (from a reference point to the arc) can vary in accordance with a sinusoidal curve. Furthermore, the corners of each stator tooth may be rounded. The rounded corners of the stator teeth may include a uniform (or constant, non-varying) radius of curvature. These enhancement are designed to provide a more uniform torque by the stator to the rotor. As a result, the rotation of the rotor is subject to smaller fluctuations, and the fan motor undergoes less vibration and generates less acoustical noise.

Abstract: A rotating electric machine according to embodiments is a rotating electric machine including a rotor including a first core and being capable of rotating around a rotating shaft; and a stator disposed to face the rotor in the axial direction of the rotating shaft, the first core including a first pressed powder material having a plurality of first flaky magnetic metal particles and a first intercalated phase, the first flaky magnetic metal particles having an average thickness of from 10 nm to 100 ?m, each first flaky magnetic metal particle having a first flat surface and a first magnetic metal phase including at least one first element selected from the group consisting of Fe, Co, and Ni, the average value of the ratio of the average length in the first flat surface with respect to the average thickness being from 5 to 10,000, the first intercalated phase existing between the first flaky magnetic metal particles and including at least one second element selected from the group consisting of oxygen (O), car

Abstract: A permanent magnet motor is provided, including: a stator and a rotor. The stator has a plurality of windings. The rotor has a plurality of magnet placement slots and a plurality of air gaps. The plurality of magnet placement slots include a plurality of circumferential magnet placement slots circumferentially arranged and a plurality of radial magnet placement slots radially extending. The circumferential magnet placement slots and the radial magnet placement slots are circumferentially alternately arranged. The plurality of air gaps are adjacent to part of the plurality of magnet placement slots and distributed to be on a d-axis flux path of the rotor.

Abstract: A heat sink (30) for cooling an electric machine (10), includes: a first part of the heat sink (32) in the form of a hollow cylinder, wherein an inner lateral surface includes a groove (34) extending helically with respect to a central axis of the hollow cylinder; a second part of the heat sink (36) in the form of a hollow cylinder, which includes a radially internal fin (38); and a third part of the heat sink (40) in the form of a hollow cylinder, which includes a connecting section (52), in order to accommodate an output shaft (12) of the machine in a rotationally fixed manner. The second part of the heat sink is accommodated, at least partially, in the first part of the heat sink, so that a radially external surface of the second part of the heat sink rests against the groove.

Abstract: The present disclosure provides a motor stator, a motor and a bus. The motor stator includes a stator tooth. The stator tooth includes a tooth root and a tooth crest. The tooth crest is provided on the tooth root. The tooth crest includes a first tooth crest part and a second tooth crest part. The first tooth crest part and the second tooth crest part are provided on two sides of the tooth root along the circumference of the motor stator, respectively, and a tooth crest air gap is formed between the first tooth crest part and the second tooth crest part. According to the present disclosure, the motor stator is adapt to reduce magnetic flux leakage, and enhance the utilization rate of a permanent magnet and output torque.

Abstract: A vehicle drive device with a reduction device includes an input driving unit that provides a driving force, a transmission part comprising a first rotor, a second rotor, and a stator stacked in a rotational axial direction of the input driving unit, and an output part connected to one of the first rotor or the second rotor. In particular, the input driving unit is connected to the other of the first rotor or the second rotor.