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    MULTICOMPONENT MAGNET ASSEMBLIES FOR ELECTRICAL MACHINES
    1.
    发明申请
    MULTICOMPONENT MAGNET ASSEMBLIES FOR ELECTRICAL MACHINES 审中-公开

    公开(公告)号：US20200312548A1

    公开(公告)日：2020-10-01

    申请号：US16903472

    申请日：2020-06-17

    Applicant: ABB Schweiz AG

    Inventor： Lavinia Scherf ,  Jacim Jaci movie ,  Darren Tremelling ,  Lorenz Herrmann ,  Thomas Christen ,  Jari Jappinen ,  Taina Suontausta

    IPC: H01F41/02 ,  H02K15/03

    Abstract: A method for manufacturing a multicomponent permanent magnet, and a multicomponent permanent magnet are proposed. The multicomponent permanent magnet has a first permanent magnet having a R-T-B-composition, wherein R is at least one selected from the group consisting of Y, Ce, La, Pr, Nd, Sm, Eu and Gd and T is one or more transition metal elements including Fe; and a second permanent magnet having a R-T-B-composition, wherein R is at least one selected from the group consisting of Y, Ce, La, Pr, Nd, Sm, Eu and Gd and T is one or more transition metal elements including Fe, the second magnet including at least one of a heavy rare earth element (HRE) and an increased amount of Ce and/or Co, the second magnet having different magnetic properties, in particular a higher coercivity, than the first magnet. The first magnet and the second magnet are connected mechanically, wherein the connection is electrically conductive with an adjusted electrical resistivity.

    Production Method of Self-Magnetised Net-Shape Permanent Magnets by Additive Manufacturing
    2.
    发明申请
    Production Method of Self-Magnetised Net-Shape Permanent Magnets by Additive Manufacturing 有权

    公开(公告)号：US20220172889A1

    公开(公告)日：2022-06-02

    申请号：US17434664

    申请日：2020-02-21

    Applicant: ABB Schweiz AG

    Inventor： Jacim Jacimovic ,  Thomas Christen ,  Lavinia Scherf ,  Reto Kessler ,  Lorenz Herrmann ,  Eric Denervaud

    IPC: H01F41/02 ,  B33Y70/00 ,  B33Y80/00 ,  H01F7/02

    Abstract: A method of producing a permanent magnet includes forming a magnetisable workpiece by additive manufacturing and forming the permanent magnet by partitioning the magnetisable workpiece. The additive manufacturing includes steps of forming a first powder layer by depositing a first powder, the first powder being ferromagnetic; forming a first workpiece layer of the magnetisable workpiece by irradiating a predetermined first area of the first powder layer by means of a focused energy beam to fuse the first powder in the first area; and repeating the above steps multiple times to form further workpiece layers of the magnetisable workpiece. The permanent magnet is formed by partitioning the magnetisable workpiece, where an exposed surface of the permanent magnet formed by the partitioning is non-parallel to the first workpiece layer, and where the permanent magnet produces an external magnetic field having a magnetic field strength of at least 1 kA/m.

    Thomson coil driven switch assembly with lightweight plunger
    4.
    发明授权
    Thomson coil driven switch assembly with lightweight plunger 有权

    公开(公告)号：US11004641B2

    公开(公告)日：2021-05-11

    申请号：US16404050

    申请日：2019-05-06

    Applicant: ABB Schweiz AG

    Inventor： Francisco Garcia-Ferre ,  Thomas Schmoelzer ,  Jacim Jacimovic ,  Lorenz Herrmann ,  Jakub Korbel ,  Tobias Erford ,  David Saxl

    IPC: H01H50/44 ,  H01H50/54 ,  H01H50/64

    Abstract: An electrical switch assembly includes a contact element to be moved towards a further contact element for generating an electrical connection; and a drive for moving the contact element; wherein the drive includes a plunger with a connection member interconnected with the contact element; wherein the plunger includes a mechanical structure with a top side to which the connection member is connection, and a bottom side opposite to the top side; wherein the drive includes a Thomas coil for moving the plunger via an electrically conducting top face, which is provided on the top side and an electrically conducting bottom face, which is provided on the bottom side. The mechanical structure includes at least one channel between the top side and the bottom side, the at least one channel extending transverse to a movement direction of the plunger. Furthermore, the mechanical structure fills less than 50% of a volume between the top side and the bottom side.

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