A motor apparatus having a rotor that includes one or more permanent magnets disposed in ring-like manner, wherein similar poles of adjacent magnets face one another, and further wherein a gear mechanism (e.g., a toothed ring) is configured to transfer rotation from the rotor to an external gear mechanism. The motor may also include a stator comprising one or more solenoids and a bearing assembly that includes a rotating bearing element integrated with a toothed element for engaging with a gear and axle assembly. The rotating bearing element and integrated toothed gear element may pass through cavities of the main solenoids and provide for minimal cavity size, improving motor efficiencies.

A stator includes a magnetic body having a through-hole, a magnetoresistive portion disposed around the through-hole to generate a magnetic pole around the through-hole in a case where a coil is excited, and a non-magnetic portion disposed at a position different from a position of the magnetoresistive portion around the through-hole by means of thermal melting, and formed to have lower magnetic permeability than the magnetic body.

Provided are a power generation apparatus and an aquarium equipment. The power generation apparatus includes a water pump and a magnetic induction generator. The water pump includes a housing, a stator mounted in the housing, a first rotor assembly, and an impeller connected to the first rotor assembly. The first rotor assembly includes a first permanent magnet rotor and a first rotating shaft disposed at an axis of the first permanent magnet rotor. The first permanent magnet rotor is disposed adjacent to the stator. The magnetic induction generator is disposed adjacent to the stator or to the first permanent magnet rotor and is operative to be coupled to an electric device. The stator includes a coil winding operative to be coupled to an external power source, so that when the coil winding is coupled to an input alternating current, the first permanent magnet rotor rotates enabling the magnetic induction generator to generate an induced current to power up the electric device. The aquarium equipment includes the power generation apparatus described above.

A single phase permanent magnet motor includes a stator core, windings wound around the stator core, and a permanent magnet rotor. The stator core includes an end portion and two spaced arm portions. Each arm portion includes a connecting arm connected to the end portion and a pole claw formed at a distal end of the connecting arm. The two pole claws define a space for receiving the rotor. The pole claws surround the space and form an arc pole surface. The arc pole surface is recessed to form a startup groove located at a central axis of the pole claw. The two pole claws are spaced apart to form two slot openings there between. A line connecting the two slot openings is orthogonal to the central axis of the pole claw.

A permanent magnet synchronous motor with an integrated pump body and its preparation method are provided. The preparation method comprises: 1) performing an injection molding process for the first time on a coil, which is wound on a coil former, to form a coil sealing part for sealing the coil; 2) assembling an iron core in the sealed coil and performing the injection molding process for the second time on them to form a pump body part with a rotor barrel, wherein the rotor barrel is formed by conducting the injection molding process based on the iron core, and an isolating thin layer is formed at a polar arc part of the iron core to isolate the iron core from a rotor cavity in the rotor barrel. A good electromagnetic property of the motor is ensured and the water leakage problem is solved.

A single phase permanent magnet motor includes a stator core, windings, and a permanent magnet rotor. The stator core includes an end portion and two spaced arm portions each including a connecting arm and a pole claw. Each pole claw has a long pole tip and a short pole tip, and forms a pole surface. The long pole tip of each pole claw corresponds to the short pole tip of the other pole claw with a slot opening formed there between. The slot opening causes the arc pole surface to be discontinued along a circumferential direction, and the arc pole surface is recessed inwardly to form a startup groove.

A movable magnet is configured by alternately magnetizing an even number of magnetic poles at an outer periphery of a shaft part; a number of core magnetic poles as magnetic poles of a core body and a number of magnetic poles of the movable magnet are equal to each other; the core magnetic poles are disposed to face the movable magnet with an air gap therebetween on an outer peripheral side of the movable magnet in a direction orthogonal to the shaft part; a drive unit is provided with a magnet position holding part provided to face the movable magnet and magnetically attracts the movable magnet to a reference position; the core body is formed to surround an even number of the core magnetic poles; and a coil body is disposed at the core body adjacent to each of the even number of the core magnetic poles.

A rotary reciprocating drive actuator reciprocally and rotationally driving the movable body about the shaft part in relation to the fixed body by the electromagnetic mutual effect of the coil and the movable magnet, wherein the movable magnet is magnetized in the radial direction of the shaft part, the two magnetic poles are disposed facing each other across an air gap in the radial direction of the movable magnet and the shaft part, and the fixed body has a rotation-angle-holding part disposed facing the movable magnet across the air gap, the rotation-angle-holding part holding the rotation angle position of the movable magnet by the magnetic attraction force generated with the movable magnet.

Various embodiments disclosed herein relate to a system and method whereby a haptic feedback mechanism may be integrated into a rotatable gear module such that rotating the module may generate pure mechanical haptic feedback. The gear module may be integrated into a wearable device, such as headphones, such that a set of magnets incorporated within may be aligned and misaligned with a plurality of teeth when the gear module rotates. In response to the rotation, each alignment and misalignment of the set of magnets with the plurality of teeth may generate pure haptic feedback. In embodiments, the gear module may be rotated to increment or decrement a unit of measurement associated with the headphones. Each unit of increment or decrement of change may produce haptic feedback based on the alignment and misalignment of the set of magnets.

A motor includes a stator core, a winding bracket mounted around the stator core, a winding wound around the winding bracket, and a rotor cooperating with stator core. The winding bracket comprises a first bracket and a second bracket arranged in parallel with each other. The motor further includes a first connecting terminal and a second connecting terminal for supplying power to the winding from an external power source, and the first connecting terminal and the second connecting terminal are both mounted on the second bracket.