Cooling structure for hybrid powertrain of vehicle

    公开(公告)号:US11320003B2

    公开(公告)日:2022-05-03

    申请号:US17164675

    申请日:2021-02-01

    摘要: A cooling structure for a hybrid powertrain apparatus of a vehicle may include: a first rotor shaft coaxially connected to an engine output shaft and connected to a rotor of a first motor; an engine clutch shaft coaxially connected to the first rotor shaft not to rotate and connected to an engine clutch; a transmission input shaft mounted coaxially with the engine clutch shaft not to rotate by a rotor of a second motor connected to the engine clutch; and a cooling channel formed in the transmission input shaft to be able to supply oil for simultaneously cooling the first motor, the second motor, and the engine clutch.

    COOLING STRUCTURE FOR HYBRID POWERTRAIN OF VEHICLE

    公开(公告)号:US20220065309A1

    公开(公告)日:2022-03-03

    申请号:US17164675

    申请日:2021-02-01

    IPC分类号: F16D25/12 B60K6/48 F16H45/02

    摘要: A cooling structure for a hybrid powertrain apparatus of a vehicle may include: a first rotor shaft coaxially connected to an engine output shaft and connected to a rotor of a first motor; an engine clutch shaft coaxially connected to the first rotor shaft not to rotate and connected to an engine clutch; a transmission input shaft mounted coaxially with the engine clutch shaft not to rotate by a rotor of a second motor connected to the engine clutch; and a cooling channel formed in the transmission input shaft to be able to supply oil for simultaneously cooling the first motor, the second motor, and the engine clutch.

    Rotor Having Keys Arranged in Straight Line in Vertical Direction and Method of Manufacturing the Same

    公开(公告)号:US20240186848A1

    公开(公告)日:2024-06-06

    申请号:US18305934

    申请日:2023-04-24

    IPC分类号: H02K1/276 H02K15/03

    摘要: An embodiment rotor includes a stacked core including stacked lamination sheets. The lamination sheets include lamination segments arranged in a circle, the stacked core has an upper layer lamination segment coupled to a lower layer lamination segment with a phase difference therebetween of a first angle with respect to a center of the stacked core, the stacked lamination segments have keys arranged in a straight line on an inner surface of the stacked core so that the keys are inserted into a key way disposed in a motor shaft in an axial direction, the lamination segments have a substantially identical shape and are arranged with an interval of a second angle with respect to a center of the rotor thus having a substantially identical pattern, and the lamination segments include upper and lower layer coupling portions repeatedly disposed at intervals of the second angle in a circumferential direction.

    Rotor-cooling structure of a drive motor

    公开(公告)号:US12009703B2

    公开(公告)日:2024-06-11

    申请号:US17516388

    申请日:2021-11-01

    IPC分类号: H02K1/32 H02K5/20 H02K9/19

    CPC分类号: H02K1/32 H02K5/203 H02K9/19

    摘要: A rotor-cooling structure is for a drive motor including an inner shaft, a rotor shaft surrounding the inner shaft, a rotor connected to the rotor shaft, and a stator disposed to be spaced apart from the rotor. The rotor-cooling structure includes: a first flow passage formed in the inner shaft; a second flow passage formed in the rotor shaft to receive oil through the first flow passage; a third flow passage formed in a plate disposed at an end of a rotor core, constituting the rotor, to be connected to the second flow passage; and a fourth flow passage formed to be connected to the third flow passage and to penetrate the rotor core in the direction in which core plates constituting the rotor core are stacked.

    Connection structure for a stator of a drive motor

    公开(公告)号:US11916456B2

    公开(公告)日:2024-02-27

    申请号:US17540109

    申请日:2021-12-01

    IPC分类号: H02K3/52

    CPC分类号: H02K3/522

    摘要: A connection structure of a stator of a drive motor is configured to allow coils to be wound in a plurality of slots provided in a stator core and to connect the coils withdrawn from the slots. The coils are wound in the slots to form first-type structures and second-type structures configured such that withdrawal directions of three-phase (U-, W- and V-phase) withdrawal lines and N-phase withdrawal lines withdrawn from the slots of the first-type structures are opposite to withdrawal directions of three-phase (U-, W- and V-phase) withdrawal lines and N-phase withdrawal lines withdrawn from the slots of the second-type structures. The first-type structures and the second-type structures are disposed symmetrically to each other with respect to a reference line formed to divide the slots in half.