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    In-wheel motor drive device
    11.
    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
    13.
    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。

    In-wheel motor drive device
    16.
    发明授权
    In-wheel motor drive device 有权

    公开(公告)号：US10894473B2

    公开(公告)日：2021-01-19

    申请号：US16340211

    申请日：2016-11-24

    Applicant: NTN CORPORATION

    Inventor： Shinya Taikou ,  Shiro Tamura ,  Tomohisa Uozumi

    IPC: B60K7/00 ,  F16H1/06 ,  F16H1/20 ,  F16H57/021 ,  F16H57/03

    Abstract: Provided is an in-wheel motor drive device (21) including: a motor (28); a wheel bearing (53); and a speed reducer (38). The speed reducer (38) comprises: a speed reducer input shaft (Sin) including an input gear (34); a speed reducer output shaft (Sout) including an output gear (37); and an intermediate shaft (Sm) including a small-diameter intermediate gear (36) and a large-diameter intermediate gear (35). The large-diameter intermediate gear (35) has a circumscribed circle which is superimposed with a pitch circle of a plurality of rolling elements (42) of the wheel bearing (53) when viewed from an axial direction.

    In-wheel motor drive device and connection structure between in-wheel motor drive device and wheel
    17.
    发明授权
    In-wheel motor drive device and connection structure between in-wheel motor drive device and wheel 有权

    公开(公告)号：US10792994B2

    公开(公告)日：2020-10-06

    申请号：US16320536

    申请日：2017-07-03

    Applicant: NTN CORPORATION

    Inventor： Shinya Taikou ,  Shiro Tamura

    IPC: B60K7/00 ,  H02K5/22 ,  B60B37/10 ,  H02K5/16 ,  H02K7/18

    Abstract: A casing (43) of an in-wheel motor drive device (10) includes a tubular body first casing (43g) disposed on one side in an axial (O) direction and a tubular body second casing (43a) disposed on the other side in the axial direction. Each of the body first casing and the body second casing has an annular abutting surface (43j) so that the annular abutting surfaces of the body first casing and the body second casing abut on each other in the axial direction. A hub carrier (18) has at its tip end a connecting portion (82s) for rotatable connection to a vehicle body-side member (81). The connecting portion is disposed so as not to overlap the abutting surfaces in the axial direction and so as to overlap the body first casing or the body second casing in the axial direction.

    In-wheel motor drive device
    19.
    发明授权
    In-wheel motor drive device 审中-公开

    公开(公告)号：US10668803B2

    公开(公告)日：2020-06-02

    申请号：US16081453

    申请日：2016-11-07

    Applicant: NTN CORPORATION

    Inventor： Shiro Tamura ,  Shinya Taikou

    IPC: B60K7/00 ,  B60B27/04 ,  B60K17/356 ,  B60K17/04 ,  B60B35/12 ,  B60B27/00 ,  B60B35/18

    Abstract: A wheel hub bearing unit includes an outer ring disposed on an axially outer side of the hub bearing unit and coupled to a wheel, a stationary shaft passing through a center bore of the outer ring, and a plurality of rolling elements arranged in an annular space between the outer ring and the stationary shaft. Motor and speed reduction units are offset from an axis of the wheel hub bearing unit in a direction perpendicular thereto, with the motor unit disposed adjacent to an axially inner end portion of the stationary shaft. The speed reduction unit includes an output gear coupled to the outer ring and a rolling bearing provided between the output gear and the stationary shaft to support the output gear. A carrier disposed on an axially inner side relative to the hub bearing unit is secured to the axially inner end portion of the stationary shaft.

    In-wheel motor drive device
    20.
    发明授权
    In-wheel motor drive device 有权

    公开(公告)号：US10543742B2

    公开(公告)日：2020-01-28

    申请号：US16343449

    申请日：2016-11-16

    Applicant: NTN CORPORATION

    Inventor： Shiro Tamura ,  Minoru Suzuki ,  Shinya Taikou

    IPC: B60K7/00 ,  B60K17/04 ,  F16H1/06 ,  H02K7/08 ,  H02K7/116 ,  H02K21/12 ,  H02K7/00

    Abstract: A large gear and a small gear are provided to an intermediate shaft of an in-wheel motor drive device, and a final output gear configured to mesh with the small gear of the intermediate shaft is provided to an output shaft. The output shaft is supported by bearings on in-board and out-board sides, respectively, and the large gear of the intermediate shaft is arranged between the bearing configured to support the output shaft on the in-board side and the final output gear of the output shaft. The bearing and the large gear are arranged so that, when viewed from the axial direction, a tooth top circle of the large gear of the intermediate shaft and a radially outer circle of the bearing configured to support the output shaft on the in-board side have an intersection point.

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