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    IN-WHEEL MOTOR DRIVE ASSEMBLY
    3.
    发明申请
    IN-WHEEL MOTOR DRIVE ASSEMBLY 审中-公开
    内轮电机驱动总成

    公开(公告)号：US20140203622A1

    公开(公告)日：2014-07-24

    申请号：US14220380

    申请日：2014-03-20

    申请人： NTN CORPORATION

    发明人： Tetsuya Yamamoto ,  Akira Yamagata

    IPC分类号： B60K7/00

    CPC分类号： B60K7/0007 ,  B60G3/20 ,  B60G2204/148 ,  B60G2204/30 ,  B60G2300/50 ,  B60K17/043 ,  B60K17/046 ,  B60K2007/0038 ,  B60K2007/0092 ,  F16H1/32

    摘要： An in-wheel motor drive assembly 21 includes: a motor unit A; a speed reduction unit B having an output shaft 28 reducing the rotational speed of the motor rotary shaft 35 and outputting the reduced rotation and a speed-reduction-unit casing 22b forming a contour, and disposed on one axial side of the motor unit A; a wheel hub bearing unit C having a wheel hub 32 fixedly coupled with the output shaft 28 and a wheel-hub-bearing outer ring 22c rotatably supporting the wheel hub 32, and disposed on one axial side of the speed reduction unit B; and coupling portions 63, 64 secured to at least one of the wheel-hub-bearing outer ring 22c and speed-reduction-unit casing 22b to couple with members of a vehicle body.

    摘要翻译： 轮电机驱动组件21包括：马达单元A; 减速单元B，其具有输出轴28，其降低电动机旋转轴35的转速并输出减速旋转;减速单元壳体22b，形成轮廓，并设置在电动机单元A的一个轴向侧; 具有与输出轴28固定连结的轮毂32的轮毂轴承单元C和可旋转地支撑轮毂32的轮毂轴承外圈22c，并且设置在减速单元B的一个轴向侧; 以及固定到轮毂轴承外圈22c和减速单元壳体22b中的至少一个的联接部63,64，以与车身的构件相连。

    FLUID DYNAMIC BEARING DEVICE
    4.
    发明申请
    FLUID DYNAMIC BEARING DEVICE 有权
    流体动力轴承装置

    公开(公告)号：US20140050427A1

    公开(公告)日：2014-02-20

    申请号：US14062273

    申请日：2013-10-24

    申请人： NTN CORPORATION

    发明人： Fuminori Satoji ,  Toshiyuki Mizutani ,  Tetsuya Yamamoto ,  Isao Komori ,  Tetsuya Kurimura

    IPC分类号： F16C33/72 ,  F16C32/06

    CPC分类号： F16C33/723 ,  F16C17/107 ,  F16C32/0633 ,  F16C33/745 ,  F16C43/02 ,  F16C2370/12

    摘要： A fluid dynamic bearing device (21) includes: a shaft member (22); a housing (29) as an outer member which is arranged on a radially outer side of the shaft member (22) and is opened at both ends; a radial bearing gap which is formed on a radially inner side of the housing (29) and faces an outer peripheral surface of the shaft member (22); and a lid member (30) closing an opening on one end side of the housing (29), wherein the lid member (30) is fitted to an outer peripheral surface of the housing (29) with a fastening allowance which does not affect accuracy of a surface defining an outer diameter dimension of the radial bearing gap so that the housing (29) and the lid member (30) are bonded and fixed to each other.

    摘要翻译： 流体动力轴承装置（21）包括：轴构件（22）; 作为外部构件的壳体（29），其布置在所述轴构件（22）的径向外侧上并且在两端开口; 径向轴承间隙，其形成在所述壳体（29）的径向内侧并且面向所述轴构件（22）的外周面; 以及盖构件（30），其封闭所述壳体（29）的一端侧的开口，其中，所述盖构件（30）以不影响精度的紧固余量装配到所述壳体（29）的外周面 限定径向轴承间隙的外径尺寸的表面，使得壳体（29）和盖构件（30）彼此结合并固定。

    Motor drive device for vehicles
    5.
    发明授权
    Motor drive device for vehicles 有权

    公开(公告)号：US11923749B2

    公开(公告)日：2024-03-05

    申请号：US17262794

    申请日：2019-08-09

    申请人： NTN CORPORATION

    发明人： Aiko Myouki ,  Tetsuya Yamamoto ,  Shinya Taikou ,  Shiro Tamura ,  Naoya Takeuchi

    IPC分类号： H02K5/22 ,  H02K11/00 ,  H02K11/21 ,  H02K7/116

    CPC分类号： H02K5/225 ,  H02K11/21 ,  H02K7/116

    摘要： A casing (10) is divided into a cylindrical first case portion (51) integrally having a partition part (54), a second case portion (52) connected to one end of the first case portion in an axial direction and configured to cover a second space (S2), and a third case portion (53) connected to the other end of the first case portion in the axial direction and configured to cover a first space (S1). A signal cable passed through a through hole (54c) of the partition part extends from a sensor (72, 73) to an external connector (81) provided in the second case portion or the third case portion, and is anchored to the first case portion (51) in the vicinity of a through hole (54c) of the partition part.

    IN-WHEEL MOTOR DRIVING DEVICE
    6.
    发明申请
    IN-WHEEL MOTOR DRIVING DEVICE 有权
    车轮电机驱动装置

    公开(公告)号：US20150231959A1

    公开(公告)日：2015-08-20

    申请号：US14432544

    申请日：2013-09-30

    申请人： NTN CORPORATION

    发明人： Aiko Ishikawa ,  Ken Yamamoto ,  Tetsuya Yamamoto

    IPC分类号： B60K7/00 ,  B60K17/14

    CPC分类号： B60K7/0007 ,  B60B35/14 ,  B60K7/00 ,  B60K17/14 ,  B60K17/145 ,  B60K2007/0038 ,  B60K2007/0061 ,  F16C19/06 ,  F16C19/184 ,  F16C19/54 ,  F16C2326/02 ,  F16D1/10 ,  F16D2001/103

    摘要： A gear shaft of an output gear in a speed reducer B of an in-wheel motor driving device is supported at its two ends with respect to a housing. The double-end supported gear shaft of the output gear is formed with a spline hole. The spline hole provides spline-connection with an output shaft of the wheel hub C. This structure makes the gear shaft less likely to come out of alignment even if the output gear comes under a bending moment. Therefore, even if an external force such as a lateral force from a tire causes the output shaft of the wheel hub C to develop a shaft deflection, the deformation/displacement is absorbed by a gap between splines which connect the output shaft of the wheel hub C and the output gear with each other.

    摘要翻译： 轮毂马达驱动装置的减速器B中的输出齿轮的齿轮轴在其两端相对于壳体被支撑。 输出齿轮的双端支撑齿轮轴形成有花键孔。 花键孔与轮毂C的输出轴提供花键连接。这种结构使得即使输出齿轮处于弯矩时齿轮轴也不太可能不对准。 因此，即使来自轮胎的侧向力等外力也会导致轮毂C的输出轴产生轴偏转，所以变形/位移被连接轮毂的输出轴的花键之间的间隙吸收 C和输出齿轮彼此。

    In-wheel motor drive assembly
    9.
    发明授权
    In-wheel motor drive assembly 有权
    轮内电机驱动装置

    公开(公告)号：US09108496B2

    公开(公告)日：2015-08-18

    申请号：US14220380

    申请日：2014-03-20

    申请人： NTN CORPORATION

    发明人： Tetsuya Yamamoto ,  Akira Yamagata

    IPC分类号： B60K7/00 ,  B60G3/20 ,  B60K17/04 ,  F16H1/32

    CPC分类号： B60K7/0007 ,  B60G3/20 ,  B60G2204/148 ,  B60G2204/30 ,  B60G2300/50 ,  B60K17/043 ,  B60K17/046 ,  B60K2007/0038 ,  B60K2007/0092 ,  F16H1/32

    摘要： An in-wheel motor drive assembly 21 includes: a motor unit A; a speed reduction unit B having an output shaft 28 reducing the rotational speed of the motor rotary shaft 35 and outputting the reduced rotation and a speed-reduction-unit casing 22b forming a contour, and disposed on one axial side of the motor unit A; a wheel hub bearing unit C having a wheel hub 32 fixedly coupled with the output shaft 28 and a wheel-hub-bearing outer ring 22c rotatably supporting the wheel hub 32, and disposed on one axial side of the speed reduction unit B; and coupling portions 63, 64 secured to at least one of the wheel-hub-bearing outer ring 22c and speed-reduction-unit casing 22b to couple with members of a vehicle body.

    摘要翻译： 轮电机驱动组件21包括：马达单元A; 减速单元B，其具有输出轴28，其降低电动机旋转轴35的转速并输出减速旋转;减速单元壳体22b，形成轮廓，并设置在电动机单元A的一个轴向侧; 具有与输出轴28固定连结的轮毂32的轮毂轴承单元C和可旋转地支撑轮毂32的轮毂轴承外圈22c，并且设置在减速单元B的一个轴向侧; 以及固定到轮毂轴承外圈22c和减速单元壳体22b中的至少一个的联接部63,64，以与车身的构件相连。

    Vehicle drive device
    10.
    发明授权
    Vehicle drive device 有权

    公开(公告)号：US11662010B2

    公开(公告)日：2023-05-30

    申请号：US17262848

    申请日：2019-08-09

    申请人： NTN Corporation

    发明人： Ryou Yukishima ,  Tetsuya Yamamoto ,  Katsunori Sato

    IPC分类号： F16H55/08 ,  F16H55/17 ,  F16H1/08

    CPC分类号： F16H55/0806 ,  F16H55/17 ,  F16H1/08 ,  F16H2055/0893

    摘要： A vehicle drive device uses a parallel shaft gear reducer (30) in which a gear is composed of helical gear, as a speed reducer part (B) that decelerates and outputs a rotation of an electric motor part (A). In the vehicle drive device, of meshing parts of the gears formed in the speed reducer part (B), two gears form a meshing part in which the amount of misalignment that occurs between the tooth surfaces of the two gears meshing with each other is different during driving and during coasting of a vehicle. A first tooth surface (S1) meshing with a mating tooth surface during driving is subjected to tooth surface modification, and a second tooth surface (S2) meshing with a mating tooth surface during coasting is subjected to tooth surface modification of an amount different from an amount of the tooth surface modification to the first tooth surface (S1).