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    In-wheel motor drive device
    1.
    发明授权
    In-wheel motor drive device 有权

    公开(公告)号：US10933737B2

    公开(公告)日：2021-03-02

    申请号：US16342253

    申请日：2016-11-24

    Applicant: NTN CORPORATION

    Inventor： Shiro Tamura ,  Minoru Suzuki ,  Shinya Taikou

    IPC: B60K7/00 ,  H02K7/116 ,  F16H1/08 ,  F16H1/06 ,  H02K7/00 ,  B60K1/02 ,  H02K7/08

    Abstract: An in-wheel motor drive device includes an electric motor section, a speed reducer section, a wheel bearing section, and a casing. The speed reducer section includes a speed-reduction structure using a parallel shaft gear. The parallel shaft gear includes an input shaft, which is coupled to the electric motor section, an input gear, at least one intermediate shaft including input-side and output-side intermediate gears, an output shaft, which is coupled to the wheel bearing section, and a final output gear. The input, intermediate, and output shafts are supported by rolling bearings to be rotatable. At least two rolling bearings configured to support the intermediate and output shafts on an out-board side and two rolling bearings configured to support the intermediate and output shafts on an in-board side are arranged at positions at which respective bearing widths are prevented from being superimposed with each other in an axial direction.

    In-wheel motor drive device
    2.
    发明授权
    In-wheel motor drive device 有权

    公开(公告)号：US10792967B2

    公开(公告)日：2020-10-06

    申请号：US16339386

    申请日：2016-11-07

    Applicant: NTN CORPORATION

    Inventor： Shiro Tamura ,  Minoru Suzuki

    IPC: B60G7/00 ,  B60K7/00 ,  B60K17/04 ,  F16H1/06 ,  F16H57/025 ,  F16H57/021 ,  B60G3/28 ,  F16H57/02

    Abstract: An in-wheel motor drive device includes a wheel hub bearing unit and a speed reduction unit that decelerates rotation of a motor unit and transmits decelerated rotation to a wheel. A suspension bracket has an upper connecting seat portion connectable with a suspension device, a lower connecting seat portion connectable with the suspension device, and an intermediate area connecting a vehicle rear part of the upper connecting seat portion and a vehicle rear part of the lower connecting seat portion. A notch is provided between a vehicle front part of the upper connecting seat portion and a vehicle front part of the lower connecting seat portion on a front side of the vehicle of the intermediate area. The suspension bracket is attached/fixed to a casing of the speed reduction unit and/or a fixed wheel such that an axis of the wheel hub bearing unit passes through the notch.

    SUSPENSION STRUCTURE FOR IN-WHEEL MOTOR DRIVE DEVICE
    4.
    发明申请
    SUSPENSION STRUCTURE FOR IN-WHEEL MOTOR DRIVE DEVICE 有权
    用于车轮驱动装置的悬架结构

    公开(公告)号：US20150210154A1

    公开(公告)日：2015-07-30

    申请号：US14427736

    申请日：2013-09-02

    Applicant: NTN Corporation

    Inventor： Shiro Tamura ,  Minoru Suzuki

    IPC: B60K7/00 ,  B60G9/02

    CPC classification number: B60K7/0007 ,  B60G9/02 ,  B60G21/051 ,  B60G2200/20 ,  B60G2200/462 ,  B60G2204/182 ,  B60G2206/20 ,  B60G2300/50 ,  B60K7/00 ,  B60K2007/0038 ,  B60K2007/0046 ,  B60K2007/0092

    Abstract: A suspension structure includes a pair of trailing arms (12) each having at its front end a pivot (14) that is attached to a vehicle body, a beam member (13) connecting the pair of trailing arms, and a pair of in-wheel motor drive devices (31) coupled and fixed to rear end regions of the trailing arms. The position of the pivot (14) in a lateral direction of a vehicle is included in a range A, B, and C from an inner end to an outer end of the in-wheel motor drive device (31) in the lateral direction of the vehicle.

    Abstract translation: 悬挂结构包括一对牵引臂（12），每个拖臂在其前端处具有连接到车身的枢轴（14），连接该对拖臂的梁构件（13） 轮子电机驱动装置（31）联接并固定到后臂的后端区域。 枢轴（14）在车辆的横向方向上的位置包括在从轮内电机驱动装置（31）的内端到外端的横向方向上的范围A，B和C中 机动车。

    WHEEL DRIVING DEVICE
    7.
    发明申请
    WHEEL DRIVING DEVICE 有权
    车轮驱动装置

    公开(公告)号：US20150005130A1

    公开(公告)日：2015-01-01

    申请号：US14373653

    申请日：2013-01-16

    Applicant: NTN CORPORATION

    Inventor： Ken Yamamoto ,  Minoru Suzuki

    IPC: H02K7/116 ,  B60K1/00 ,  F16H1/32

    CPC classification number: H02K7/116 ,  B60K1/00 ,  B60K7/00 ,  B60K7/0007 ,  B60K17/043 ,  B60K17/046 ,  B60K2007/0038 ,  B60K2007/0061 ,  B60K2007/0092 ,  B60L2220/46 ,  B60L2270/145 ,  F16F15/08 ,  F16F15/124 ,  F16H1/32 ,  F16H1/321 ,  F16H2001/325

    Abstract: A wheel driving device is proposed in which it is possible to prevent vibration of an internal gear due to torque transmitted to the internal gear from being transmitted to a speed reducer casing. The wheel driving device includes a speed reducer for transmitting the rotation of an electric motor to a hub ring supporting a vehicle wheel after reducing its speed. The speed reducer is a cycloid speed reducer including an external gear, and an internal gear meshing with the external gear and rotationally fixed to the speed reducer casing through a rotationally fixing arrangement which is also capable of elastically supporting the internal gear. The rotationally fixing arrangement absorbs, by elastic deformation, vibration of the internal gear due to torque transmitted from the external gear to the internal gear, thereby preventing the vibration of the internal gear from being transmitted to the speed reducer casing.

    Abstract translation: 提出一种车轮驱动装置，其中可以防止由于传递到内齿轮的扭矩传递到减速器壳体而导致的内齿轮的振动。 车轮驱动装置包括减速器，用于在降低其速度之后将电动机的旋转传递到支撑车轮的轮毂环。 减速机是具有外齿轮的摆线减速器和与外齿轮啮合的内齿轮，通过能够弹性地支承内齿轮的旋转固定装置旋转地固定在减速机壳体上。 旋转固定装置通过弹性变形吸收由于从外齿轮传递到内齿轮的转矩而使内齿轮的振动，从而防止内齿轮的振动传递到减速器壳体。

    SUSPENSION STRUCTURE FOR IN-WHEEL MOTOR DRIVE DEVICE
    8.
    发明申请
    SUSPENSION STRUCTURE FOR IN-WHEEL MOTOR DRIVE DEVICE 有权
    用于车轮驱动装置的悬架结构

    公开(公告)号：US20150203159A1

    公开(公告)日：2015-07-23

    申请号：US14427746

    申请日：2013-09-02

    Applicant: Shiro TAMURA ,  Minoru SUZUKI ,  NTN CORPORATION

    Inventor： Shiro Tamura ,  Minoru Suzuki

    IPC: B62D21/11 ,  B60K7/00

    CPC classification number: B62D21/11 ,  B60G21/051 ,  B60G2200/21 ,  B60G2200/422 ,  B60G2204/182 ,  B60G2300/50 ,  B60K7/0007 ,  B60K17/043 ,  B60K2007/0038 ,  B60K2007/0092

    Abstract: A suspension structure includes a pair of trailing arms (12), a beam member (13) connecting the pair of trailing arms, a bracket (21) connected to a rear end region of the trailing arm, and an in-wheel motor drive device (31) coupled and fixed to the bracket. The in-wheel motor drive device (31) is located above the rear end region of the trailing arm (12), and a lower side of the in-wheel motor drive device (12) is covered by the rear end region of the trailing arm (12) and the bracket (21).

    Abstract translation: 悬挂结构包括一对牵引臂（12），连接该对拖臂的梁构件（13），连接到后臂的后端区域的支架（21）和一个轮内电动机驱动装置 （31）联接并固定到支架上。 轮内电机驱动装置（31）位于牵引臂（12）的后端区域的上方，轮内电动机驱动装置（12）的下侧被后方的后端区域覆盖 臂（12）和支架（21）。

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