中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

16 records (took 0.106 seconds)

    PERMANENT MAGNET WITH INTER-GRAIN HEAVY-RARE-EARTH ELEMENT, AND METHOD OF PRODUCING SAME
    1.
    发明申请
    PERMANENT MAGNET WITH INTER-GRAIN HEAVY-RARE-EARTH ELEMENT, AND METHOD OF PRODUCING SAME 审中-公开

    公开(公告)号：WO2019007499A1

    公开(公告)日：2019-01-10

    申请号：PCT/EP2017/066794

    申请日：2017-07-05

    Applicant: ABB SCHWEIZ AG

    Inventor： SIMON, Reinhard A. ,  JACIMOVIC, Jacim ,  HERRMANN, Lorenz ,  TOMSE, Tomaz

    IPC: H01F41/02 ,  H01F1/057

    Abstract: A manufacturing method of a sintered magnet is described. The method comprises forming a pre-sintering body from a first magnetic powder and a second magnetic powder (containing a heavy rare earth element, HRE) so that at least part of the second magnetic powder is provided at at least one inner portion of the pre-sintering body and surrounded from at least two opposite sides by the first magnetic powder; sintering the pre-sintering body; and annealing the sintered pre-sintering body at an annealing temperature lower than the sintering temperature, thereby causing inter-grain diffusion of HRE from the HRE reservoir zone to the grain boundary phase. After the annealing, the grain boundary phase contains the HRE in a higher concentration than the main phase.

    COOLED ELECTRICAL ASSEMBLY
    2.
    发明申请
    COOLED ELECTRICAL ASSEMBLY 审中-公开

    公开(公告)号：WO2021136593A1

    公开(公告)日：2021-07-08

    申请号：PCT/EP2020/050033

    申请日：2020-01-02

    Applicant: ABB SCHWEIZ AG

    Inventor： ORTIZ, Gabriel ,  BURKART, Ralph ,  PARK, Ki-Bum ,  GARCIA-FERRE, Francisco ,  JACIMOVIC, Jacim

    IPC: H01F27/02 ,  H01F27/08 ,  H01F27/22 ,  H01F27/24 ,  H01F27/28 ,  H01F37/00 ,  H01F27/32 ,  H01F17/06 ,  H01F27/025 ,  H05K7/20

    Abstract: A cooled electrical assembly comprising a body part (2) comprising a first wall (21), the first wall (21) being a planar wall, an inductor (4) comprising a core (406) and a coil (408) around the core (406), wherein the inductor (4) is a closed-core inductor, and has a first inductor surface (41) which is an outer surface, and cooling means comprising a first cooling member (61) in heat conductive connection with the first wall (21), and located on opposite side of the first wall (21) than the inductor (4). The first inductor surface (41) is a planar surface positioned parallel and adjacent to the first wall (21) of the body part (2) such that there is a heat conductive connection between the first inductor surface (41) and the first cooling member (61).

    METHOD FOR PRODUCING A MAGNETIC POWDER
    3.
    发明申请
    METHOD FOR PRODUCING A MAGNETIC POWDER 审中-公开

    公开(公告)号：WO2019243136A1

    公开(公告)日：2019-12-26

    申请号：PCT/EP2019/065374

    申请日：2019-06-12

    Applicant: ABB SCHWEIZ AG

    Inventor： REINHARD, Simon ,  JACIMOVIC, Jacim ,  HERRMANN, Lorenz ,  GREUTER, Felix ,  PERIGO, Elio

    IPC: H01F41/02

    Abstract: The present disclosure provides a method for producing a magnetic powder and the use of a waste magnetic material for producing isotropic or anisotropic magnets. The method comprises providing a waste magnetic material comprising a waste magnetic chemical composition, analyzing the waste magnetic material to obtain information about the waste magnetic chemical composition thereof, adjusting the waste magnetic chemical composition to a target magnetic chemical composition to obtain an adjusted waste magnetic material, and atomizing the adjusted waste magnetic material to obtain the magnetic powder.

    HIGH-RESISTIVITY PERMANENT MAGNETS, THEIR PREPARATION AND THEIR APPLICATION IN ELECTRICAL MACHINES
    4.
    发明申请
    HIGH-RESISTIVITY PERMANENT MAGNETS, THEIR PREPARATION AND THEIR APPLICATION IN ELECTRICAL MACHINES 审中-公开

    公开(公告)号：WO2021043932A1

    公开(公告)日：2021-03-11

    申请号：PCT/EP2020/074656

    申请日：2020-09-03

    Applicant: ABB SCHWEIZ AG

    Inventor： SCHERF, Lavinia ,  JACIMOVIC, Jacim ,  KESSLER, Reto ,  TREMELLING, Darren ,  SHRESTHA, Ghanshyam

    IPC: B22F5/00 ,  B22F3/10

    Abstract: The present invention relates to high-resistivity permanent magnets, their preparation and their application in electrical machines. A permanent magnet according to the present invention comprises a permanent magnet comprising a magnetic material and a shaped inorganic insulating element, wherein a shape and a size of the shaped inorganic insulating element have been substantially unchanged by the sintering, wherein the shaped inorganic insulating element has a width and a length which are both at least 10 times larger than an average grain diameter of the magnetic material after sintering, and wherein an arithmetic average waviness Wa of an interface between the magnetic material and the shaped inorganic insulating element is less than 10% of a local wall thickness of the shaped inorganic insulating element after sintering.

Patent Agency Ranking