SEGMENTED ANNULAR STATOR AND METHOD FOR PRODUCING A SEGMENTED ANNULAR STATOR FOR AN ELECTRIC MACHINE

    公开(公告)号:US20240364149A1

    公开(公告)日:2024-10-31

    申请号:US18570736

    申请日:2022-05-30

    发明人: Wolfgang Hill

    IPC分类号: H02K1/14 H02K3/32 H02K15/095

    摘要: A segmented annular stator for an electric machine, including a concentrated winding. The stator includes a plurality of circular ring segment-shaped stator segments which are substantially identical and each of which has a stator tooth with a first recess protruding into the stator tooth in the circumferential direction and a second recess protruding into the stator tooth in the circumferential direction. A multilayer coil made of a wound winding wire is arranged in the first recess and the second recess, and the first recess and the second recess each has a recess depth which increases with the radius of the annular stator, wherein the outermost winding layer of the coil in the first recess and the outermost winding layer of the coil in the second recess of an adjacent stator tooth in the circumferential direction engage into each other in the circumferential direction in an electrically insulated manner so as to intersect in the radial direction.

    Motor/generator
    3.
    发明授权

    公开(公告)号:US12132365B2

    公开(公告)日:2024-10-29

    申请号:US17796562

    申请日:2021-02-04

    摘要: Apparatus (200) for use as a motor or generator, comprising: a first part (210); a second part (230) movable relative to the first part (210) and spaced from the first part (210) by an air gap (260); and a plurality of spaced activatable magnet elements (220) provided on the first part (210), each activatable magnet element (220) being operative when activated by application of an electric current thereto to direct a magnetic field across the air gap (260) towards the second part (230); wherein each activatable magnet element (220) comprises: a pole piece (222) defining an air-gap facing surface (223A, 223B), the pole piece (222) comprising: a first limb (224A); a second limb (224B); and a coil-winding section (224C) positioned between the first and second limbs (224A, 224B); a permanent magnet arrangement (225) provided between the first and second limbs 224A, 224B) of the pole piece; and an electrically conductive coil (226) wound around the coil-winding section (224C) of the pole piece, wherein the electrically conductive coil (226) is operative to generate a magnetic flux oriented to oppose the magnetic flux of the permanent magnet arrangement (225); characterised in that the pole piece (222) further comprises a parallel flux path section (224D) extending in parallel to the coil-winding section (224C) operative to allow magnetic flux from the permanent magnet arrangement (225) to flow in parallel to the coil-winding section (224C).

    Electrical machine having shaped soft metal composite components with axial and radial airgaps

    公开(公告)号:US12119708B2

    公开(公告)日:2024-10-15

    申请号:US17790722

    申请日:2021-03-18

    申请人: David Calley

    发明人: David Calley

    摘要: An electric machine, which may operate as an electric motor or generator, that address performance and manufacturing shortcomings in various motor design approaches particularly transverse flux, axial and radial flux motors with higher torque, higher RPM, and lower core losses and lower cogging. An exemplary electric machine incorporates shape monolithic components such as the armature teeth or connector ring, armature ring, concentrator teeth or concentrator ring formed by Soft metal Composite (SMC). Magnets may be configured between the concentrator teeth to form a magnet ring having a plurality of magnetic poles. The armature flux paths may be shared between phases. The air gaps may be axial and extend between armature teeth and concentrator teeth and the magnetic poles configured between the concentrator teeth. The armature, concentrator teeth and magnetic poles may extend radially and alternate along the axial axis of the electric machine, producing axial and/or radial airgaps.

    AXIAL FLUX ELECTRIC MACHINE WITH NON-AXISYMMETRIC STATORS

    公开(公告)号:US20240339903A1

    公开(公告)日:2024-10-10

    申请号:US18132137

    申请日:2023-04-07

    申请人: Raytheon Company

    发明人: Scott D. Nielsen

    摘要: An apparatus is provided that is configured as or otherwise includes an axial flux electric machine. This axial flux electric machine includes a plurality of rotors, a plurality of stators and a shaft rotatable about an axis. The rotors are disposed axially along the axis and are mounted to the shaft. Each of the rotors includes a plurality of rotor magnets. The stators are axially interspersed with the rotors along the axis. Each of the stators includes a plurality of stator magnets. The stator magnets of a first of the stators are arranged asymmetrically about the axis.

    MOTOR
    7.
    发明公开
    MOTOR 审中-公开

    公开(公告)号:US20240333069A1

    公开(公告)日:2024-10-03

    申请号:US18606098

    申请日:2024-03-15

    摘要: A motor includes a rotor and a stator having a tubular stator core, first and second electrical insulators arranged on first and second axial ends of the stator care and a stator winding. Each of the first and second electrical insulators includes an outer wall part, inner wall parts and body parts. The stator winding includes first, second and third phase stator windings and each of the windings has winding parts respectively wound around teeth of the stator core, a first lead part and a second lead part. Each of the first lead parts is connected to a power supply, and each of the second lead parts is connected in common to a neutral point part. The outer wall part of the first electrical insulator assembly includes a first movement restriction part that restricts movement of the neutral point part.

    ELECTRIC MACHINE
    9.
    发明公开
    ELECTRIC MACHINE 审中-公开

    公开(公告)号:US20240313622A1

    公开(公告)日:2024-09-19

    申请号:US18589701

    申请日:2024-02-28

    申请人: ROLLS-ROYCE PLC

    摘要: An electric machine includes a stator having a phase arrangement, and a rotor. The phase arrangement includes first and second legs connected in parallel at first and second primary junctions. The legs each include first and second coils connected in series through a first intermediate junction. The intermediate junctions are connected by a branch such that the phase arrangement is a bridge circuit. The phase arrangement permits an alignment current to flow between the primary junctions via the branch, the alignment current being conducted through an alignment current path passing through one coil of each leg. The phase arrangement includes a negative impedance converter to add a negative electrical impedance to the alignment current path by introducing additional electrical energy into the respective alignment current path. The alignment current causes a translational force to be applied to the rotor for maintaining alignment of the rotor with respect to the stator.