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    Axial Flux Motor
    1.
    发明申请
    Axial Flux Motor 有权

    公开(公告)号：US20240429802A1

    公开(公告)日：2024-12-26

    申请号：US18754520

    申请日：2024-06-26

    Applicant: CorePower Magnetics, Inc.

    Inventor： Kevin Byerly ,  Mark Nations ,  Paul Ohodnicki ,  Brett Riale ,  Timothy Mould

    IPC: H02K21/24 ,  H02K1/14 ,  H02K1/2795 ,  H02K1/28 ,  H02K7/09 ,  H02K15/03

    Abstract: An axial flux motor with a modular design that can help to simplify manufacturing processes, The design also permits the use of various material types, such as mixed materials, rare earth containing, and rare earth free designs with high power density. The motor may include a rotor arranged in one or more rings and a stator arranged in one or more rings. The stator is positioned proximate to the rotor. The rotor, the stator, or both are formed of individual wedge segments to provide a modular design. The rotor and/or stator assemblies may include a structural bearing material mixed with magnetic materials.

    ROTARY ELECTRIC MACHINE
    2.
    发明申请
    ROTARY ELECTRIC MACHINE 有权

    公开(公告)号：US20240396416A1

    公开(公告)日：2024-11-28

    申请号：US18694991

    申请日：2022-06-17

    Applicant: NIDEC CORPORATION

    Inventor： Ryoma SASAKI ,  Kentaro HIROSE ,  Shigeru MAEDA

    IPC: H02K21/02 ,  H02K7/09

    Abstract: A rotary electric machine includes: a rotor having a shaft extending in an axial direction and rotor magnets arranged along a circumferential direction; a stator having a coil and surrounding the rotor; a housing supporting the stator; a pair of magnetic bearings on opposite sides in the axial direction of the rotor magnet; and a position adjusting member held by the housing. The stator holds the rotor rotatably in the axial direction by a field current flowing through the coil. The magnetic bearing includes a cylindrical inner magnet fixed to the rotor and a cylindrical outer magnet fixed to the housing and surrounding the inner magnet, and holds the rotor rotatably in the radial direction. The rotor has a stepped surface facing the axial direction. The position adjusting member has an opposing surface facing the stepped surface, and is movable in the axial direction with respect to the housing.

    ENERGY STORAGE FLYWHEEL AND ENERGY STORAGE APPARATUS
    3.
    发明申请
    ENERGY STORAGE FLYWHEEL AND ENERGY STORAGE APPARATUS 有权

    公开(公告)号：US20240372433A1

    公开(公告)日：2024-11-07

    申请号：US18254541

    申请日：2023-01-17

    Applicant: Huachi Kinetic Energy (Beijing) Technology Co., Ltd

    Inventor： Zhiqiang WANG ,  Sen SU

    IPC: H02K7/02 ,  H02K7/04 ,  H02K7/09

    Abstract: An energy storage flywheel includes a housing; a flywheel rotor arranged in the housing and connected, at an upper end, to a self-bearing motor; a bearing rotor fitted over a lower end of the flywheel rotor and provided, at a lower end, with an annular rotor magnetic steel; and a bearing stator a arranged below the bearing rotor and provided with a cavity which opens towards the bearing rotor, in which the lower end of the bearing rotor is fitted, and at a circumferential surface of which is provided with an annular stator magnetic steel. At least part of the annular stator magnetic steel is opposite to and below the annular rotor magnetic steel in an up-and-down direction and is opposite to the annular rotor magnetic steel in a radial direction of the bearing rotor; and the annular stator magnetic steel and the annular rotor magnetic steel repel each other.

    Bearingless electrical machines with reduced number of inverters
    4.
    发明授权
    Bearingless electrical machines with reduced number of inverters 有权

    公开(公告)号：US12126223B2

    公开(公告)日：2024-10-22

    申请号：US17734519

    申请日：2022-05-02

    Applicant: Wisconsin Alumni Research Foundation

    Inventor： Eric Loren Severson ,  Zhouzhou Wang

    IPC: H02K1/2796 ,  H02K3/28 ,  H02K7/09

    CPC classification number: H02K1/2796 ,  H02K3/28 ,  H02K7/09

    Abstract: A machine system includes a shaft, a first rotor, a first stator, a second rotor, a second stator, a first, first-phase coil and a second, first-phase coil of a first stator winding, a first, second-phase coil and a second, second-phase coil of a second stator winding, and a first, third-phase coil and a second, third-phase coil of a third stator winding wound about the first stator, a first, first-phase coil and a second, first-phase coil of a fourth stator winding, a first, second-phase coil and a second, second-phase coil of a fifth stator winding, and a first, third-phase coil and a second, third-phase coil of a sixth stator winding wound about the second stator, and an inverter drive system. The stator windings are configured to provide a torque and a suspension force under control of an inverter drive system consisting of only three inverters.

    Flywheel systems and flywheel bearing modules
    5.
    发明授权
    Flywheel systems and flywheel bearing modules 有权

    公开(公告)号：US12101007B2

    公开(公告)日：2024-09-24

    申请号：US18385750

    申请日：2023-10-31

    Applicant: WattsUp Power A/S

    Inventor： John Røn Pedersen ,  Martin Speiermann ,  Jamshid Zamany

    IPC: H02K21/22 ,  H02K7/09 ,  H02K11/21

    CPC classification number: H02K21/222 ,  H02K7/09 ,  H02K11/21

    Abstract: A flywheel system includes a fixture providing a base and a stator, rotor having a cavity to receive the stator, a generator/motor module having a plurality of permanent magnets mechanically coupled to the rotor and an active magnetic bearing module. The active magnetic bearing module includes a plurality of magnetizable elements mechanically coupled to or integrated in the rotor, and a plurality of electromagnets mechanically coupled to a shaft and configured to magnetically couple with the plurality of first magnetizable elements to actively stabilize the rotor relative to the fixture. The windings of the generator/motor module are arranged around the rotation axis of the rotor at a first distance from the rotation axis of the rotor, the electromagnets of the active magnetic bearing module are arranged around the rotation axis of the rotor at a second distance, and the first distance is greater than or equal to the second distance.

    Magnetically Opposed, Iron Core Linear Motor Based Motion Stages For Semiconductor Wafer Positioning
    10.
    发明公开
    Magnetically Opposed, Iron Core Linear Motor Based Motion Stages For Semiconductor Wafer Positioning 审中-公开

    公开(公告)号：US20240120235A1

    公开(公告)日：2024-04-11

    申请号：US18375920

    申请日：2023-10-02

    Applicant: KLA Corporation

    Inventor： Michel Pharand ,  Stephen Doll ,  Samir Nayfeh

    IPC: H01L21/687 ,  H02K3/47 ,  H02K7/09 ,  H02K41/03

    CPC classification number: H01L21/68764 ,  H02K3/47 ,  H02K7/09 ,  H02K41/031

    Abstract: Methods and systems for realizing a high throughput wafer positioning system with high positioning accuracy are presented herein. The high throughput, high accuracy wafer positioning system is employed to measure structural and material characteristics (e.g., material composition, dimensional characteristics of structures and films, etc.) associated with different semiconductor fabrication processes. In one aspect, iron core linear motor assemblies are arranged in a magnetically opposed configuration such that the magnetic attraction forces inherent to each opposing iron core linear motor assembly largely cancel one another. The reduced force applied to sensitive stage frame elements, in turn, reduces induced deformations and stage positioning errors. In some embodiments, a wafer positioning system includes stacked magnetically opposed long stroke stages. In some of these embodiments, both magnetically opposed long stroke stages employ magnet tracks mechanically coupled to the intermediate frame of the stacked stage assembly.

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