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    MOTOR SHAFT CURRENT SUPPRESSION MECHANISM AND ELECTRIC DRIVE SYSTEM
    1.
    发明公开
    MOTOR SHAFT CURRENT SUPPRESSION MECHANISM AND ELECTRIC DRIVE SYSTEM 审中-公开

    公开(公告)号：EP4447293A1

    公开(公告)日：2024-10-16

    申请号：EP23861654.4

    申请日：2023-08-22

    申请人： Jing-Jin Electric Technologies Co., Ltd

    发明人： HAO, Ziqiang ,  ZHANG, Kaihe ,  LIU, Xia

    IPC分类号： H02K11/00 ,  H02K11/40 ,  H02H9/02

    摘要： A motor shaft current suppression mechanism and an electric drive system are disclosed. The motor shaft current suppression mechanism is applied to the electric drive system. The electric drive system comprises a motor controller (110) and a motor (120). The suppression mechanism (400) comprises: a first capacitor (410) for connecting each phase line of three phase output in the motor controller (110) to a housing of the motor controller (110) itself; and/or, a second capacitor (420) for connecting each phase line of three phase output in the motor (120) to a housing of the motor (120) itself. The present disclosure can suppress the shaft current on the bearings and protect the bearings of the motor (120). The motor shaft current suppression mechanism of the present disclosure can be used in electric drive systems.

    DRIVER
    4.
    发明公开
    DRIVER 审中-实审

    公开(公告)号：EP4395158A1

    公开(公告)日：2024-07-03

    申请号：EP23212516.1

    申请日：2023-11-28

    申请人： OMRON Corporation

    发明人： KIRIBUCHI, Takeshi

    IPC分类号： H02P21/06 ,  H02K11/00

    CPC分类号： H02P21/06

    摘要： A driver is configured to supply drive power to a motor including an extraction unit configured to extract a portion of power supplied from outside and a supply unit configured to supply the power extracted by the extraction unit to an external device, or to a motor power line including the extraction unit and the supply unit. The driver includes a determination unit configured to determine, on the basis of an operating state of the motor, whether adjustment of a d-axis current value of a drive current of the motor is necessary to supply first power to the external device via the extraction unit, and an output unit configured to output, on the basis of a determination result by the determination unit, predetermined power including drive power required for driving the motor and the first power to the extraction unit.

    MULTILAYER CIRCUIT BOARD, DRIVE CONTROL DEVICE, AND MOTOR UNIT FOR ELECTRIC POWER STEERING
    6.
    发明公开
    MULTILAYER CIRCUIT BOARD, DRIVE CONTROL DEVICE, AND MOTOR UNIT FOR ELECTRIC POWER STEERING 审中-公开

    公开(公告)号：EP4333272A1

    公开(公告)日：2024-03-06

    申请号：EP21939259.4

    申请日：2021-04-28

    申请人： MITSUBISHI ELECTRIC CORPORATION

    发明人： NAGARE, Toshiki ,  SHIMIZU, Hiroki

    IPC分类号： H02K11/00 ,  H02P27/06

    摘要： There is provided a multilayer circuit board formed by alternately stacking conductor layers and insulating layers. A power section, in which a current is applied to an inverter circuit to which a switching element is mounted, and a control calculation section, to which a control device that controls the switching element is mounted, are disposed in different regions on the multilayer circuit board. The power section includes a drive current wiring for applying a current. The drive current wiring includes a same shape portion formed in a same shape in each of the conductor layers and a traversing portion in which a notch portion formed by notching a portion of the drive current wiring is formed at least on any one of the conductor layers. A signal wiring for transmitting a control signal of an inverter circuit mounted in the power section traverses the notch portion, and a dimension of a width of the traversing portion in a direction perpendicular to a longitudinal direction of the drive current wiring is larger than a dimension of a width of the same shape portion.

    DRIVING DEVICE AND VALVE
    9.
    发明公开
    DRIVING DEVICE AND VALVE 审中-公开

    公开(公告)号：EP4280436A1

    公开(公告)日：2023-11-22

    申请号：EP22739162.0

    申请日：2022-01-17

    申请人： Zhejiang Sanhua Automotive Components Co., Ltd.

    发明人： WANG, Lixin ,  ZHU, Haijun ,  WANG, Yun ,  LIN, Long ,  TU, Wang

    IPC分类号： H02K11/21 ,  H02K11/00

    摘要： Provided are a driving device and a valve, the driving device comprising a motor (1) and a transmission assembly; an output shaft (11) of the motor is connected to the transmission assembly, and the transmission assembly comprises a transmission member (2); the transmission member (2) and the output shaft (11) are fixed to or are limitedly cooperate with one another, and the output shaft (11) may drive the transmission member (2) to rotate; the transmission assembly further comprises a magnetic element (3); and the driving device further comprises a Hall element (4) corresponding to the magnetic element (3); the transmission member (2) comprises a cylindrical portion (25), and the cylindrical portion (25) is provided with a first hole passage (21); the first hole passage (21) comprises a first opening portion (22) located on an outer wall portion of the cylindrical portion (25), and at least a part of the magnetic element (4) passes through the first opening portion (22) to extend into the first hole passage (21); the magnetic element (3) is fixed to the cylindrical portion, which may reduce the resultant force on the magnetic element (4) during mounting; and after mounting, the transmission member (2) wraps part of the magnetic element (4), thereby reducing the risk of damage to the magnetic element (4) during mounting and use.