Abstract: A reduction gear and an electromechanical device are provided. The reduction gear has a motor and a speed reduction assembly. The motor has a first rotary shaft and a second rotary shaft which rotate around a central axis, a second rotor, a first rotor, a stator and a first motor housing; the speed reduction assembly has: a first gear, a second gear, a third gear, and an output shaft driven by the third gear; and the motor further has: a first bearing and a second bearing, the first bearing and the second bearing are located on two sides of the stator in an axial direction, and the first gear is located on one side, away from the stator, of the second rotor. According to the embodiments, the reduction gear which is small in size and high in drive capability may be obtained.

Abstract: An embodiment of the present invention provides a rotor and a motor having the rotor. By providing a plurality of flux barrier groups and slot groups at intervals in a circumferential direction of the rotor iron core, it is possible to flexibly arrange the numbers of the flux barrier groups and the slot groups so as to meet the requirements for the number of poles of different products. In addition, by flexibly adjusting the quantity ratio between the flux barrier groups and the slot groups and/or the quantity relationship between the flux barriers in the flux barrier group and the slots in the slot group, it is possible to meet the requirements for motor efficiency and starting capacity of different products. Further, since the processing jig of the rotor only requires processing of the structures of the flux barriers and the slots, the manufacturing cost can be reduced.

Abstract: A rotor is located around an outer periphery of a rotation shaft of a motor and rotates together with the rotation shaft. The rotor includes magnetic steel plates laminated in an axial direction and including a through-hole group passing therethrough in the axial direction. The through-hole group includes through-holes each including, as a central line, an imaginary line extending in the radial direction and having an arcuate shape extending from the central line to both sides and radially outward. The through-holes are arranged in the radial direction. Among the through-holes, a radius of curvature of an arcuate radially inner side surface of the radially innermost through-hole is the smallest, and/or a radius of curvature of an arcuate radially outer side surface of the radially outermost through-hole is the largest.

Abstract: A motor includes a rotor including a rotating shaft, a nonmagnetic rotary frame, yokes arranged separately in the nonmagnetic rotary frame, and magnets arranged on surfaces of the yokes at least on one side of the yokes. To hold the yokes and the magnets, the nonmagnetic rotary frame includes a first annular rib that extends along a circumferential direction on a radially outer side of the rotating shaft, radially extending ribs that extend from a radially outer side of the first annular rib along radial directions, and a second annular rib joined to the radially extending ribs and concentric with the first annular rib.

Abstract: Embodiments of the disclosure provide a rotor, a motor, and a driving apparatus. The rotor is defined by laminated electromagnetic steel plates. The electromagnetic steel plate includes a plurality of through hole groups running through the electromagnetic steel plate, and each through hole group includes a plurality of through holes. A central axis of a magnetic pole of the rotor is used as a d axis, and an axis that is 45 degrees from the d axis is used as a q axis, where an outer peripheral surface of the rotor that is between the d axis and the q axis is recessed radially inward relative to an outer peripheral surface of another portion of the rotor, so that the rotor is noncircular when observed in an axial direction.

Abstract: A power unit comprises: a wave gear speed reducer, a rotary shaft extending in the axial direction; a rotor unit that rotates integrally with the rotary shaft; a stator unit disposed facing the rotor unit; and a motor casing to which the stator unit is secured. The motor casing has a second cover that covers the rotor unit and the stator unit from the other side in the axial direction. The rotary shaft extends toward the other side in the axial direction, penetrates the second cover, and is connected to a cam. The second cover has a support part that extends toward the other side in the axial direction, supports the rotary shaft in a rotatable manner, and is positioned in a flexible cylindrical part of an external gear.

Abstract: A motor includes a shaft arranged to be rotatable around a center axis, two rotors arranged in an axial direction to have a predetermined distance and at least one of rotors including a magnet, a stator arranged between the two rotors and including a plurality of stator cores arranged in a circumferential direction and coils wound on the plurality of stator cores, and a circuit board provided between the stator and the rotor including the magnet. The circuit board includes a plurality of groove holes penetrating the circuit board in an axial direction and arranged in a circumferential direction. The plurality of stator cores are fitted into the plurality of groove holes.

Abstract: Provided is a motor including a shaft; two rotors attached to the shaft and spaced from each other in an axial direction by a predetermined distance; a stator arranged between the two rotors; a busbar unit arranged on one axial side of at least one of the two rotors, and arranged to hold a busbar; and a housing arranged to hold the stator and house the two rotors therein. The stator includes a plurality of cores arranged in a circumferential direction, and coils wound around the cores. A lead wire drawn out from the coils is arranged to extend, radially outside of the one of the rotors, from the corresponding core to a position on the one axial side of the one of the rotors, and is connected to the busbar at the position. The busbar unit is housed in the housing.

Abstract: Embodiments of the disclosure provide an axial flux motor and an electrical product. The motor includes a rotor which rotates with a central axis as a center, and a stator which is disposed opposite to the rotor in an axial direction and has a plurality of stator units, the plurality of stator units being disposed around the central axis. The stator unit includes a core unit formed by a core piece, and a coil unit formed by a wire wound and disposed around the core unit. A height of the core unit in the axial direction is less than or equal to a height of the coil unit in the axial direction. With the embodiments of the disclosure, the dependency between the coil and the core in design and manufacture can be reduced, and the degree of design freedom can be improved.

Abstract: Embodiments of this application provide a stator element, a stator assembly, a motor, and an electromechanical device, the stator element including at least two stacked stator housing sheets, each of the stator housing sheets being a frame enclosed by a sheet periphery, at least two protrusions being disposed around the periphery of each of the stator housing sheets, the protrusion being directed from an inside of the stator housing sheet to an outside of the stator housing sheet, a groove being formed between adjacent protrusions, and protrusions of the adjacent stator housing sheets being alternately arranged in a direction in which the at least two stator housing sheets are stacked. Therefore, heat of a stator disposed inside the stator element can be dissipated with a strong heat dissipation capability at relatively low costs.

Abstract: A reduction gear and an electromechanical device are provided. The reduction gear has a motor and a speed reduction assembly. The motor has a first rotary shaft and a second rotary shaft which rotate around a central axis, a second rotor, a first rotor, a stator and a first motor housing; the speed reduction assembly has: a first gear, a second gear, a third gear, and an output shaft driven by the third gear; and the motor further has: a first bearing and a second bearing, the first bearing and the second bearing are located on two sides of the stator in an axial direction, and the first gear is located on one side, away from the stator, of the second rotor. According to the embodiments, the reduction gear which is small in size and high in drive capability may be obtained.

Abstract: A speed reduction apparatus includes a motor and a speed reduction assembly. The motor includes a first rotating shaft and a second rotating shaft a second rotator and a first rotator, a stator, a first motor housing, a second motor, and a first bearing and a second bearing at a radial outer side of the first rotating shaft, the first bearing and the second bearing being axially located at the same side of the first rotator facing the first motor housing. The speed reduction assembly includes a first gear, third gears engaging with the first gear, and a second gear, an output shaft, the third gears turning the second gear to rotate, and the second gear driving the output shaft, and a bracket between the output shaft and the first rotating shaft, the first gear, the second gear and the third gears being located at an axial outer side of the first motor housing, and at least one of the first gear, the second gear and the third gears being located radial outer sides of the first bearing and the second bearing.

Abstract: A motor includes a rotor including a rotating shaft extending along a center axis, a cylindrical rotor core provided outside the rotating shaft in a radial direction, and two discoid weight plates provided at two ends of the cylindrical rotor core in an axial direction, and a stator opposing the rotor in the radial direction. A radius of each weight plate is smaller than a radius of the rotor core, and a difference between the radius of the rotor core and the radius of each weight plate is larger than an air gap between an outside of the rotor core in the radial direction and an inside of the stator in the radial direction.

Abstract: A rotor is located around an outer periphery of a rotation shaft of a motor and rotates together with the rotation shaft. The rotor includes magnetic steel plates laminated in an axial direction and including a through-hole group passing therethrough in the axial direction. The through-hole group includes through-holes each including, as a central line, an imaginary line extending in the radial direction and having an arcuate shape extending from the central line to both sides and radially outward. The through-holes are arranged in the radial direction. Among the through-holes, a radius of curvature of an arcuate radially inner side surface of the radially innermost through-hole is the smallest, and/or a radius of curvature of an arcuate radially outer side surface of the radially outermost through-hole is the largest.

Abstract: Provided is a motor including a shaft; two rotors attached to the shaft and spaced from each other in an axial direction by a predetermined distance; a stator arranged between the two rotors; a busbar unit arranged on one axial side of at least one of the two rotors, and arranged to hold a busbar; and a housing arranged to hold the stator and house the two rotors therein. The stator includes a plurality of cores arranged in a circumferential direction, and coils wound around the cores. A lead wire drawn out from the coils is arranged to extend, radially outside of the one of the rotors, from the corresponding core to a position on the one axial side of the one of the rotors, and is connected to the busbar at the position. The busbar unit is housed in the housing.

Abstract: A motor unit for a wave gear speed reducer is equipped with: a rotary shaft extending in the axial direction; a rotor unit that rotates integrally with the rotary shaft; a stator unit disposed facing the rotor unit; and a motor casing to which the stator unit is secured. The motor casing has a second cover that covers the rotor unit and the stator unit from the other side in the axial direction. The rotary shaft extends toward the other side in the axial direction, penetrates the second cover, and is connected to a cam. The second cover has a support part that extends toward the other side in the axial direction, supports the rotary shaft in a rotatable manner, and is positioned on the inside of an external gear when a wave gear speed reducer is attached to the motor casing.

Abstract: Provided is a motor including a shaft; two rotors attached to the shaft and spaced from each other in an axial direction by a predetermined distance; a stator arranged between the two rotors; a busbar unit arranged on one axial side of at least one of the two rotors, and arranged to hold a busbar; and a housing arranged to hold the stator and house the two rotors therein. The stator includes a plurality of cores arranged in a circumferential direction, and coils wound around the cores. A lead wire drawn out from the coils is arranged to extend, radially outside of the one of the rotors, from the corresponding core to a position on the one axial side of the one of the rotors, and is connected to the busbar at the position. The busbar unit is housed in the housing.

Abstract: Provided is a motor including a shaft; two rotors attached to the shaft and spaced from each other in an axial direction by a predetermined distance; a stator arranged between the two rotors; a busbar unit arranged on one axial side of at least one of the two rotors, and arranged to hold a busbar; and a housing arranged to hold the stator and house the two rotors therein. The stator includes a plurality of cores arranged in a circumferential direction, and coils wound around the cores. A lead wire drawn out from the coils is arranged to extend, radially outside of the one of the rotors, from the corresponding core to a position on the one axial side of the one of the rotors, and is connected to the busbar at the position. The busbar unit is housed in the housing.

Abstract: An electronic device includes a first structural part, a first electronic substrate correspondingly mounted on the first structural part, and a motor. The motor includes a second structural part and a second electronic substrate, a base directly formed on the second structural part, a rotor having at least one load, and a stator. The first and second structural parts are integrally made. The first and second structural parts are combined to a single electronic structural part. The stator has a plurality of winding coils and a driving circuit directly shaped on the second electronic substrate respectively for driving the rotor. The first and second electronic substrates are integrally made. The first and second electronic substrates are combined to a single electronic substrate. Alternatively, the driving circuit is directly shaped in the second electronic substrate.

Abstract: An electronic device includes a first structural part, a first electronic substrate correspondingly mounted on the first structural part, and a motor. The motor includes a second structural part and a second electronic substrate, a base directly formed on the second structural part, a rotor having at least one load, and a stator. The first and second structural parts are integrally made. The first and second structural parts are combined to a single electronic structural part. The stator has a plurality of winding coils and a driving circuit directly shaped on the second electronic substrate respectively for driving the rotor. The first and second electronic substrates are integrally made. The first and second electronic substrates are combined to a single electronic substrate. Alternatively, the driving circuit is directly shaped in the second electronic substrate.