Provided is a magnetic-geared motor that can suppress eddy current flowing inside a fastening member and reduce power loss. The magnetic-geared motor includes: a stator; a first rotor provided rotatably relative to the stator and including a plurality of magnetic pole pieces and a plurality of spacers disposed so as to be arranged in a circumferential direction; and a second rotor provided coaxially with the first rotor. Each spacer is composed of a plurality of divisional spacers disposed apart from each other in an axial direction, and a plurality of fastening tools for fastening the plurality of divisional spacers in the axial direction, and the divisional spacers and the fastening tools are electrically insulated from each other.

Drive generator having a helical magnetic array. Additionally, a coupling portion is coupled to the drive generator and configured to be coupled to a vehicle. A drive member is configured to be at least partially located within the at least one drive generator, whereby the drive member is magnetically coupled to the at least one drive body. Furthermore, a prime mover is coupled to the drive member and configured to rotate the drive member, thereby imparting motion, when a portion of the drive member is located within the at least one drive generator, of the at least one drive generator relative to the drive member.

A magnetic linear actuator includes a stator, a translator, and a ball bearing. The stator includes a first helical array of magnets. The translator is disposed within the stator, and includes a second helical array of magnets. The ball bearing is disposed between the stator and the translator, and includes a plurality of balls in contact with the stator.

A gear motor includes a motor and a speed reducer. The speed reducer is a magnetic modulation gear. Accordingly, non-contact power transmission by magnetic force is possible, so that the speed reducer does not require a lubricant and the structure can be simplified.

Improved magnetic rotor assemblies are provided. In one embodiment, a magnetic rotor assembly includes two or more rotor disks. The rotor disks may each contain corresponding sets of permanent magnets, which may be circumferentially disposed around the disks. The disks may then positioned near one another such that the disks are magnetically coupled. In certain instances, the N-poles of the permanent magnets may face one another. In other instances, the S-poles of the permanent magnets may face one another.

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.

Magnetic cycloidal gear assemblies and mounting arrangements for magnetic cycloidal gear assemblies are provided that include a fixed stator and a cycloid that rotates eccentrically within the stator. The cycloid can be mounted to an offset cam on the input shaft by a rolling element bearing. A plurality of cam followers connect the cycloid to the output hub. Various features can be provided to increase operational balance or stability. For example, an adjustable counterweight can be attached to the input shaft. Also for example, a mounting arrangement including an adjustable nut, one or more bearings, and/or one or more wave springs can be provided to allow for the application, balancing, or adjustment of axial forces within the assembly.

A magnetic field generator includes a plurality of magnets on support members disposed opposite to each other across a gap. The plurality of magnets include: first magnets having a magnetization direction orthogonal to a support surface of each of the support members; and second magnets having a magnetization direction parallel to the support surface, and form a Halbach magnet array. Either of the first magnets or the second magnets has a first dimension orthogonal to the support surface which is smaller than a first dimension of the other of the first magnets or the second magnets, either of the first magnets or the second magnets being formed into a recessed shape as viewed from a side of the gap.

A magnetic driving apparatus includes a base, two active magnetic units, a passive magnetic unit, and a pole-switching unit. Each of active magnetic units includes a rotational magnet. The passive magnetic unit includes two slidable magnets. One of the rotational magnets exerts magnetic push on one the slidable magnets while the remaining one of the magnets exerts magnetic attraction on the remaining one of the slidable magnets. The pole-switching unit includes a motor, a leading gear, two following gears, and a rack. The motor is connected to the base. The leading gear is operatively connected to the motor. Each of the following gears is connected to one of the rotational magnets. The rack is engaged with the gears so that the motor rotates the rotational magnets.

A driving device for a washing machine includes: a shaft including an inner shaft and an outer shaft surrounding the inner shaft; a motor assembly including a stator, a rotor that surrounds the stator, a modulator that surrounds the rotor, and a magnetic gear rotating body that surrounds the modulator; a first fixation body that connects between the inner shaft and the magnetic gear rotating body; a second fixation body having one end connected to the stator and the other end connected to a tub; and an electronic clutch that disconnects the outer shat and the rotor or connects the inner shaft and the rotor according to an operation mode of the washing machine. The modulator adjusts a speed and torque of the magnetic gear rotating body. The driving device may make a motor drive area highly efficient and may reduce electric consumption.