An axial field rotary energy device are disclosed. For example, the device can include a printed circuit board (PCB) stator having PCB panels. Each PCB panel can include conductive layers. Selected ones of the conductive layers are coupled to plated vias that extend from one major surface of the PCB stator to an opposite major surface of the PCB stator. In addition, each major surface of the PCB stator can have a layer of a dielectric material that completely covers ends of the plated vias.

An axial field rotary energy device are disclosed. For example, the device can include a printed circuit board (PCB) stator having PCB panels. Each PCB panel can include conductive layers. Selected ones of the conductive layers are coupled to plated vias that extend from one major surface of the PCB stator to an opposite major surface of the PCB stator. In addition, each major surface of the PCB stator can have a layer of a dielectric material that completely covers ends of the plated vias.

An axial field rotary energy device are disclosed. For example, the device can include a printed circuit board (PCB) stator having PCB panels. Each PCB panel can include conductive layers. Selected ones of the conductive layers are coupled to plated vias that extend from one major surface of the PCB stator to an opposite major surface of the PCB stator. In addition, each major surface of the PCB stator can have a layer of a dielectric material that completely covers ends of the plated vias.

An axial field rotary energy device are disclosed. For example, the device can include a printed circuit board (PCB) stator having PCB panels. Each PCB panel can include conductive layers. Selected ones of the conductive layers are coupled to plated vias that extend from one major surface of the PCB stator to an opposite major surface of the PCB stator. In addition, each major surface of the PCB stator can have a layer of a dielectric material that completely covers ends of the plated vias.

The present invention relates to an electromechanical battery comprising a single pole-pair Halbach array of permanent magnets incorporated into an annular flywheel, which together comprise a rotor assembly, a means for levitating the rotor assembly using a “double-lift” attractive magnetic levitator under active control, and a means for actively stabilizing the spinning rotor assembly by interaction with the fringe fields of the Halbach array.

A three-dimensional magnet structure (6) made up of a plurality of individual magnets (4), the magnet structure (6) having a thickness that forms its smallest dimension, the magnet structure (6) incorporating at least one mesh (5a) exhibiting mesh cells each one delimiting a housing (5) for a respective individual magnet (4), each housing (5) having internal dimensions just large enough to allow an individual magnet (4) to be inserted into it, the mesh cells being made from a fibre-reinforced insulating material, characterized in that a space is left between the housing (5) and the individual magnet (4), which space is filled with a fibre-reinforced resin, the magnet structure (6) comprising a non-conducting composite layer coating the individual magnets (4) and the mesh structure (5a).

A three-dimensional magnet structure (6) made up of a plurality of individual magnets (4), the magnet structure (6) having a thickness that forms its smallest dimension, the magnet structure (6) incorporating at least one mesh (5a) exhibiting mesh cells each one delimiting a housing (5) for a respective individual magnet (4), each housing (5) having internal dimensions just large enough to allow an individual magnet (4) to be inserted into it, the mesh cells being made from a fibre-reinforced insulating material, characterized in that a space is left between the housing (5) and the individual magnet (4), which space is filled with a fibre-reinforced resin, the magnet structure (6) comprising a non-conducting composite layer coating the individual magnets (4) and the mesh structure (5a).

An axial flux electric machine comprises a stator including a plurality of stator core segments each comprising a lamination comprising a plurality of layers. A first soft magnetic composite (SMC) portion is arranged adjacent to the plurality of layers of the lamination. An insulating layer arranged between circumferential side surfaces of the plurality of layers of the lamination and the first SMC portion. A rotor is arranged axially adjacent to the stator and including a plurality of permanent magnets. The rotor and stator are configured to generate magnetic flux that is aligned parallel to an axis of rotation of the rotor.

An axial flux electric machine comprises a stator including a plurality of stator core segments each comprising a lamination comprising a plurality of layers. A first soft magnetic composite (SMC) portion is arranged adjacent to the plurality of layers of the lamination. An insulating layer arranged between circumferential side surfaces of the plurality of layers of the lamination and the first SMC portion. A rotor is arranged axially adjacent to the stator and including a plurality of permanent magnets. The rotor and stator are configured to generate magnetic flux that is aligned parallel to an axis of rotation of the rotor.

A rotor of an axial flux motor reduces a cogging torque and torque ripple, and is disposed facing a stator. The rotor includes: a rotation shaft; a rotor core having the rotation shaft connected thereto by passing through a center the rotor core; a plurality of seating grooves concavely formed on one surface of the rotor core facing the stator while being spaced apart from each other at equal intervals along a circumferential direction of the rotor core; and a plurality of protrusions formed on inner wall surface of each of the plurality of seating grooves such that the plurality protrusions face a center of each of the plurality of seating grooves; and a plurality of magnets pressed into and coupled to an associated one of the plurality of seating grooves while plastically deforming the plurality of protrusions of the rotor core.