MOTOR DRIVE ASSEMBLY
    1.
    发明公开

    公开(公告)号:US20240364243A1

    公开(公告)日:2024-10-31

    申请号:US18647293

    申请日:2024-04-26

    IPC分类号: H02P6/10 H02K7/116 H02K29/08

    CPC分类号: H02P6/10 H02K7/1166 H02K29/08

    摘要: A drive system comprises at least two electric motor subassemblies, each comprising a rotor and a stator. The rotors are connected to a mechanical load to fix a position between the two rotors. The system further comprises: first and second position sensing assemblies that provide first and second rotor position signals of first and second motor subassemblies, respectively. Each position signal is indicative of the position of the associated rotor relative to its associated stator including a periodic pattern of errors in the indicated position of the rotor. A motor controller controls the currents applied to each motor subassembly as a function of the position signal. The current causes each rotor to apply a force to the mechanical load which includes a force ripple due to periodic errors in position signals, in which: the orientation of the first and second rotor position sensing assemblies relative to the first and second motor subassemblies are fixed such that the periodic ripple in the forces applied by the two motors are seen by the mechanical load at least partially cancel out.

    METHOD FOR MANUFACTURING ROTOR
    3.
    发明公开

    公开(公告)号:US20240364192A1

    公开(公告)日:2024-10-31

    申请号:US18641559

    申请日:2024-04-22

    IPC分类号: H02K15/03 H02K15/12

    摘要: A method for manufacturing a rotor includes, with a magnet accommodated in a magnet housing hole of a rotor core, causing a first die to contact a first end face of the rotor core and causing a second die to contact a second end face of the rotor core. The method also includes injecting the thermoplastic into the magnet housing hole through a passage of the second die in a state in which the first die and the second die are respectively in contact with the first end face and the second end face and the first die is heated.

    MOTOR DEVICE AND MANUFACTURING METHOD THEREOF

    公开(公告)号:US20240364176A1

    公开(公告)日:2024-10-31

    申请号:US18542750

    申请日:2023-12-17

    摘要: In a motor device, a case includes a total of three first insertion holes through which fixing male screws fixing the case to a bracket are respectively inserted, and a total of three second insertion holes through which fixing bolts fixing the bracket to an electric brake device are respectively inserted. The bracket has a total of three female screw members into which the fixing male screws are respectively screwed, and insertion holes of a total of three collars through which the fixing bolts are respectively inserted. The total of three second insertion holes and the insertion holes of the total of three collars respectively include round holes that are arranged on an axis with each other and position the case with respect to the bracket.

    INSULATION STRUCTURE
    6.
    发明公开

    公开(公告)号:US20240364167A1

    公开(公告)日:2024-10-31

    申请号:US18626609

    申请日:2024-04-04

    IPC分类号: H02K3/32 H02K5/04

    CPC分类号: H02K3/32 H02K5/04

    摘要: An insulation structure applied to a motor, and more particularly, an insulation structure which may be mounted in a housing and suppresses a corrosion phenomenon by reducing a magnitude of a shaft voltage by blocking an electric field occurring in an end coil, the structure including: a conductive part having one side in contact with the housing, surrounding a bearing having a concentric shaft with a motor shaft, and extending to be parallel to the end coil; and an insulating part in contact with at least a portion of the other side of the conductive part.

    STATOR CORE
    8.
    发明公开
    STATOR CORE 审中-公开

    公开(公告)号:US20240364151A1

    公开(公告)日:2024-10-31

    申请号:US18645202

    申请日:2024-04-24

    IPC分类号: H02K1/18 H02K1/16

    CPC分类号: H02K1/185 H02K1/165

    摘要: A stator core includes a core body a having a cylindrical shape and a bolt fixing portion which includes a bolt insertion hole extending in an axial direction and into which a fixing bolt is inserted, and is capable of being fastened to a housing by a fixing bolt while the fixing bolt is inserted into the bolt insertion hole. The core body is a laminate in which core sheets made of steel plates having an insulating resin layer on a surface are laminated. The bolt fixing portion is provided as a separate member from the core body and is attached to an outside of an outer peripheral surface of the core body in a radial direction.

    SEGMENTED ANNULAR STATOR AND METHOD FOR PRODUCING A SEGMENTED ANNULAR STATOR FOR AN ELECTRIC MACHINE

    公开(公告)号:US20240364149A1

    公开(公告)日:2024-10-31

    申请号:US18570736

    申请日:2022-05-30

    发明人: Wolfgang Hill

    IPC分类号: H02K1/14 H02K3/32 H02K15/095

    摘要: A segmented annular stator for an electric machine, including a concentrated winding. The stator includes a plurality of circular ring segment-shaped stator segments which are substantially identical and each of which has a stator tooth with a first recess protruding into the stator tooth in the circumferential direction and a second recess protruding into the stator tooth in the circumferential direction. A multilayer coil made of a wound winding wire is arranged in the first recess and the second recess, and the first recess and the second recess each has a recess depth which increases with the radius of the annular stator, wherein the outermost winding layer of the coil in the first recess and the outermost winding layer of the coil in the second recess of an adjacent stator tooth in the circumferential direction engage into each other in the circumferential direction in an electrically insulated manner so as to intersect in the radial direction.

    LENS DRIVING DEVICE, AND CAMERA MODULE AND OPTICAL DEVICE INCLUDING SAME

    公开(公告)号:US20240361568A1

    公开(公告)日:2024-10-31

    申请号:US18767048

    申请日:2024-07-09

    发明人: Sang Ok PARK

    摘要: A lens moving apparatus can include a cover member including first and second side plates, a bobbin disposed in the cover, a driving magnet including a first magnet disposed between the first side plate and the first side portion of the bobbin and a second magnet disposed between the second side plate and the second side portion of the bobbin, a driving coil disposed on the bobbin and including a first coil disposed on the first side portion of the bobbin and a second coil disposed on the second side portion of the bobbin, a lower elastic member coupled to a lower portion of the bobbin, and a circuit board. Additionally, the first coil can be electrically connected to the first elastic unit and the second coil is electrically connected to the second elastic unit.