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    ELECTRIC MACHINE SYSTEM AND CONTROLLER
    2.
    发明申请
    ELECTRIC MACHINE SYSTEM AND CONTROLLER 有权

    公开(公告)号：US20240380351A1

    公开(公告)日：2024-11-14

    申请号：US18780930

    申请日：2024-07-23

    Applicant: IHI Corporation

    Inventor： Koji YAMAGUCHI ,  Takehiro JIKUMARU ,  Kenshiro KATSURA ,  Tomoya YAMAMOTO

    IPC: H02P27/08

    Abstract: An electric machine system includes an electric machine and a controller. The controller controls input and output of a first voltage with respect to the first winding set, and input and output of a second voltage with respect to the second winding set. The controller includes an output unit and a setting unit. The output unit outputs a first signal for the input and output of the first voltage, and a second signal for the input and output of the second voltage. The setting unit sets a phase difference between the first signal and the second signal. The setting unit changes the phase difference in correspondence with a variation of the magnitude of at least one of a first current flowing through the first winding set, and a second current flowing through the second winding set.

    STATOR
    3.
    发明公开
    STATOR 审中-公开

    公开(公告)号：US20230238845A1

    公开(公告)日：2023-07-27

    申请号：US18042952

    申请日：2020-08-27

    Applicant: IHI Corporation

    Inventor： Fuminori SUZUKI ,  Takehiro JIKUMARU ,  Koji YAMAGUCHI ,  Yosuke AKAMATSU ,  Masatsugu TAKEMOTO ,  Sho MANABE

    IPC: H02K3/18 ,  H02K1/14 ,  H02K9/22

    CPC classification number: H02K3/18 ,  H02K1/148 ,  H02K9/225

    Abstract: A stator includes a stator core having a plurality of slots opening toward an inner surface and a plurality of teeth formed between the slots adjacent to each other; and flat angle coils wound around the teeth respectively. Each of the teeth includes a widened portion having a width in a circumferential direction of the inner surface, closer to the inner surface and the widened portion becomes wider, in a cross-sectional view taken along a cross section perpendicular to a rotational axis of a rotor surrounded by the stator core.

    MOTOR DEVICE WITH CARRIER SIGNAL FOR POWER SUPPLY
    5.
    发明公开
    MOTOR DEVICE WITH CARRIER SIGNAL FOR POWER SUPPLY 审中-公开

    公开(公告)号：US20240297606A1

    公开(公告)日：2024-09-05

    申请号：US18663065

    申请日：2024-05-14

    Applicant: IHI Corporation

    Inventor： Kenshiro KATSURA ,  Takehiro JIKUMARU ,  Koji YAMAGUCHI ,  Tatsuro YAMADA

    IPC: H02P27/12 ,  H02P21/22

    CPC classification number: H02P27/12 ,  H02P21/22

    Abstract: A controller for a motor device acquires a command signal indicating a target of a drive electric power, sets a first carrier frequency and a second carrier frequency of a carrier signal based on the command signal, and generates a pulse signal to control the drive electric power, based on the command signal and the carrier signal. The carrier signal is set to the first carrier frequency in a first section corresponding to a first phase range in a period of the command signal, and to the second carrier frequency in a second section corresponding to a second phase range other than the first phase range, in which the first carrier frequency is less than the second carrier frequency.

    STATOR
    7.
    发明申请
    STATOR 有权

    公开(公告)号：US20240413674A1

    公开(公告)日：2024-12-12

    申请号：US18811900

    申请日：2024-08-22

    Applicant: IHI Corporation ,  NATIONAL UNIVERSITY CORPORATION OKAYAMA UNIVERSITY

    Inventor： Fuminori SUZUKI ,  Takehiro JIKUMARU ,  Masatsugu TAKEMOTO

    IPC: H02K1/16 ,  H02K3/04

    Abstract: A stator includes: a stator core (11) including a back yoke (13) provided around an axis and surrounding a rotor (30), and teeth (14) provided at intervals in a circumferential direction of the axis and attached to the back yoke (13), and a coil (12) wound around each of the teeth (14). Each of the teeth (14) has an inner circumferential surface facing the rotor (30) and includes a tip portion (14a) projecting forward and backward in a rotational direction of the rotor (30), and a base portion (14b) facing the back yoke (13). The inner circumferential surface (14c) includes a first region (14d) and a second region (14e). An average interval between the second region (14e) and an outermost locus of the rotor (30) is larger than an average interval between the first region (14d) and the outermost locus of the rotor (30).

    ELECTRICAL ROTATING DEVICE
    8.
    发明公开
    ELECTRICAL ROTATING DEVICE 审中-公开

    公开(公告)号：US20240243630A1

    公开(公告)日：2024-07-18

    申请号：US18623122

    申请日：2024-04-01

    Applicant: IHI Corporation

    Inventor： Tetsuyuki TERAUCHI ,  Takehiro JIKUMARU

    IPC: H02K1/32 ,  H02K5/10

    CPC classification number: H02K1/32 ,  H02K5/10

    Abstract: An electrical rotating device includes a hollow cylindrical stator provided with a stator core and a stator coil, a rotor provided rotatably inside the stator, a case that houses the stator and the rotor, and a hollow cylindrical partition wall that is made of electrically conductive metal and partitions an interior space of the case into an inner space with respect to the stator and an accommodation space in which a coil end of the stator coil laterally protruding in an axial direction of a rotary shaft of the rotor from an end of the stator core is accommodated and liquid coolant is circulated. At least a portion of the partition wall close to the stator core is divided into plural small sections by forming plural slits.

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