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    ROTOR AND MOTOR
    1.
    发明公开
    ROTOR AND MOTOR 审中-公开

    公开(公告)号：US20240364156A1

    公开(公告)日：2024-10-31

    申请号：US18646767

    申请日：2024-04-26

    申请人： NIDEC CORPORATION

    发明人： Ta-Yin LUO ,  Yu-Wei HSU ,  Kuan YANG ,  Pei-Chun SHIH ,  Sheng-Chan YEN ,  Guo-Jhih YAN ,  Cheng-Tsung LIU

    IPC分类号： H02K1/276

    CPC分类号： H02K1/2773

    摘要： One aspect of a rotor of the present disclosure is a rotor that includes a rotor core extending along the axial direction and a plurality of auxiliary magnets disposed in the rotor core. The rotor core includes a slit group including a plurality of first slits aligned in a radial direction, and a second slit disposed radially inside the slit group when viewed from the axial direction. The first slit extends along the circumferential direction in a shape protruding radially inward when viewed from the axial direction. The second slit includes a magnet housing portion extending along the radial direction, and a pair of outer flux barrier portions. The auxiliary magnet is disposed in the magnet housing portion with the circumferential direction as the magnetization direction.

    ROTOR AND MOTOR HAVING ROTOR
    2.
    发明申请
    ROTOR AND MOTOR HAVING ROTOR 有权

    公开(公告)号：US20210211001A1

    公开(公告)日：2021-07-08

    申请号：US17270842

    申请日：2019-09-03

    申请人： NIDEC CORPORATION

    发明人： Hsin-Nan LIN ,  Sheng-Chan YEN ,  Ta-Yin LUO ,  Guo-Jhih YAN ,  Yu-Wei HSU ,  Cheng-Tsung LIU

    IPC分类号： H02K1/24 ,  H02K1/02 ,  H02K1/28

    摘要： An embodiment of the present invention provides a rotor and a motor having the rotor. By providing a plurality of flux barrier groups and slot groups at intervals in a circumferential direction of the rotor iron core, it is possible to flexibly arrange the numbers of the flux barrier groups and the slot groups so as to meet the requirements for the number of poles of different products. In addition, by flexibly adjusting the quantity ratio between the flux barrier groups and the slot groups and/or the quantity relationship between the flux barriers in the flux barrier group and the slots in the slot group, it is possible to meet the requirements for motor efficiency and starting capacity of different products. Further, since the processing jig of the rotor only requires processing of the structures of the flux barriers and the slots, the manufacturing cost can be reduced.

    ROTOR, MOTOR, AND DRIVE DEVICE
    3.
    发明申请
    ROTOR, MOTOR, AND DRIVE DEVICE 有权

    公开(公告)号：US20220294288A1

    公开(公告)日：2022-09-15

    申请号：US17635015

    申请日：2020-08-27

    申请人： Nidec Corporation

    发明人： Yu-Wei HSU ,  Ta-Yin LUO ,  Hsin-Nan LIN ,  Sheng-Chan YEN ,  Guo-Jhih YAN ,  Cheng-Tsung LIU

    IPC分类号： H02K1/276 ,  H02K21/14

    摘要： A rotor includes a stack of electromagnetic steel plates each including through-hole groups with through-holes extending through the respective electromagnetic steel plates. In each of the through-hole groups, at least one of the through-holes accommodates a magnet and at least a portion of the through-holes that does not accommodate any magnet is filled with an electrically conductive material. When the rotor is seen axially, at two circumferential sides of a magnetic flux passage that is adjacent to the magnet, a width of the magnetic flux passage adjacent a first side of the magnet is larger than a width of the magnetic flux passage near a second side of the magnet.

    ROTOR, MOTOR, AND ELECTRIC PRODUCT
    5.
    发明公开
    ROTOR, MOTOR, AND ELECTRIC PRODUCT 审中-公开

    公开(公告)号：US20230198323A1

    公开(公告)日：2023-06-22

    申请号：US17925592

    申请日：2021-04-26

    申请人： Nidec Corporation

    发明人： Ta-Yin LUO ,  Yu-Wei HSU ,  Sheng-Chan YEN ,  Pei-Chun SHIH ,  Hsin-Nan LIN ,  Guo-Jhih YAN ,  Cheng-Tsung LIU

    IPC分类号： H02K1/24 ,  H02K19/10

    CPC分类号： H02K1/246 ,  H02K19/103 ,  H02K2213/03

    摘要： A motor includes a rotor and a stator, the rotor includes flux barriers. In a plane orthogonal to an axial direction, at least two flux barriers corresponding to each pole of the rotor are located entirely within an extending angle. A magnitude of the extending angle is determined by a number of poles of the rotor and phases of the motor. A center line of the extending angle is a q-axis of the rotor. A ratio between an area of the flux barrier entirely located within the extending angle and an area of all flux barriers corresponding to the pole is about ½ or more, and a ratio between an area of a radially innermost flux barrier entirely located within the extending angle and an area of a radially outermost flux barrier entirely located within the extending angle and a smaller one of the two areas is about 10% or less.

    Hybrid Permanent Magnet Motor Rotor, Hybrid Permanent Magnet Motor, and Vehicle
    7.
    发明公开
    Hybrid Permanent Magnet Motor Rotor, Hybrid Permanent Magnet Motor, and Vehicle 审中-公开

    公开(公告)号：US20240113575A1

    公开(公告)日：2024-04-04

    申请号：US18455627

    申请日：2023-08-25

    申请人： NIDEC CORPORATION

    发明人： Kuan YANG ,  Pei-Chun SHIH ,  Ta-Yin LUO ,  Guo-Jhih YAN ,  Sheng-Chan YEN ,  Cheng-Tsung LIU

    IPC分类号： H02K1/2706 ,  H02K1/12

    CPC分类号： H02K1/2706 ,  H02K1/12

    摘要： A hybrid permanent magnet motor rotor rotates around a central axis, and includes: a rotor core provided with a plurality of magnet installation slots; and a plurality of magnet parts embedded inside a plurality of magnet installation slots respectively, wherein the rotor is provided with a plurality of first magnetic pole parts and a plurality of second magnetic pole parts, the magnetic poles of the first magnetic pole part and the second magnetic pole part are arranged in opposite and alternately in the circumferential direction, and the magnetic placement of the first magnetic pole part is different from that of the second magnetic pole part, the amount of magnets used in the second magnetic pole part is greater than that used in the first magnetic pole part.