Motor and disk drive apparatus
    1.
    发明授权
    Motor and disk drive apparatus 有权
    电机和磁盘驱动装置

    公开(公告)号:US08873197B1

    公开(公告)日:2014-10-28

    申请号:US14444145

    申请日:2014-07-28

    Abstract: A motor includes a rotating portion and a stationary portion. The stationary portion includes a shaft component which includes an inner shaft portion and an outer shaft portion, an upper plate portion, and a lower plate portion. The upper plate portion is disposed in one side of the shaft component and extends radially outward from the one side of the shaft component. The lower plate portion is disposed on the other side of the shaft component and extends radially outward from the other side of the shaft component. The rotating portion includes a sleeve portion. The inner shaft portion and the outer shaft portion are fixed by an adhesive. An adhesive retaining portion is provided between an outer peripheral portion of the inner shaft portion and an inner peripheral portion of the outer shaft portion.

    Abstract translation: 马达包括旋转部分和固定部分。 固定部包括轴部件,其包括内轴部分和外部轴部分,上部板部分和下部板部分。 上板部分设置在轴部件的一侧,并从轴部件的一侧径向向外延伸。 下板部分设置在轴部件的另一侧,并从轴部件的另一侧径向向外延伸。 旋转部分包括套筒部分。 内轴部和外轴部由粘合剂固定。 在内轴部的外周部和外轴部的内周部之间设置有粘接保持部。

    Actuator
    3.
    发明授权
    Actuator 有权

    公开(公告)号:US12135466B2

    公开(公告)日:2024-11-05

    申请号:US17407252

    申请日:2021-08-20

    Inventor: Takuro Iguchi

    Abstract: An actuator includes a swing portion swingable about a first axis orthogonal to a central axis extending vertically and about a second axis orthogonal to the first axis and intersecting the central axis. An angle detector includes a pair of first angle detection elements above a non-magnetic structure and extending in the second axis direction with the first axis interposed therebetween when viewed from the central axis direction, and a pair of second angle detection elements extending in the first axis direction with the second axis interposed therebetween. Each of the first angle detection elements and each of the second angle detection elements include a columnar magnetic structure between the swing portion and the non-magnetic structure in the central axis direction, and a detection coil along the outer periphery of the magnetic structure.

    Optical element and optical scanning device

    公开(公告)号:US11789230B2

    公开(公告)日:2023-10-17

    申请号:US17015972

    申请日:2020-09-09

    Inventor: Takuro Iguchi

    CPC classification number: G02B7/182 G02B26/0816 G02B26/10

    Abstract: An optical element includes a plate portion including a reflecting surface on an upper surface in a direction of a vertically extending central axis, a shaft that extends in a direction of a first axis intersecting with the central axis and is fixed to a lower surface of the plate portion, a magnet below the shaft in the direction of the central axis, and plates that fix the plate portion and the shaft, the plate portion including a protruding portion that extends downward in the direction of central axis from a lower surface, the plate including a shaft fixing portion to which the shaft is fixed and a plate portion fixing portion to which the plate portion is fixed, the plate portion fixing portion being fixed to the protruding portion.

    Actuator and optical scanning device

    公开(公告)号:US11662573B2

    公开(公告)日:2023-05-30

    申请号:US17016335

    申请日:2020-09-09

    Inventor: Takuro Iguchi

    CPC classification number: G02B26/10 G02B26/085 H02K1/14 H02K3/522 H02K5/16

    Abstract: An actuator that swings a swing portion about a first axis and a second axis perpendicular or substantially perpendicular to each other, includes a fixed portion, two first stator cores, two second stator cores, two first coils, and two second coils. The first coil is in the same region as a tooth portion of the first stator core, and the second coil is in the same region as a tooth portion of the second stator core. As viewed in a central axis direction, each extending portion of each of the first stator cores includes end surfaces that face a magnet and oppose each other with the magnet interposed therebetween along the first axis, and each extending portion of each of the second stator cores includes end surfaces that face the magnet and oppose each other with the magnet interposed therebetween along the second axis.

    Rotary drive apparatus
    6.
    发明授权

    公开(公告)号:US10591716B2

    公开(公告)日:2020-03-17

    申请号:US15957986

    申请日:2018-04-20

    Abstract: This rotary drive apparatus is arranged to cause incoming light coming from a light source to be emitted to an outside while changing the direction of the incoming light, and includes a motor including a hollow shaft arranged to extend along a central axis extending in a vertical direction, the hollow shaft including a through hole arranged to pass therethrough in an axial direction; a flywheel including at least one optical component arranged to reflect the incoming light or allow the incoming light to pass therethrough; and a laser module including the light source. At least a portion of the laser module is arranged below the base portion arranged to directly or indirectly support a stator. The through hole defines a light path along which the incoming light travels.

    Motor and disk drive apparatus
    7.
    发明授权
    Motor and disk drive apparatus 有权
    电机和磁盘驱动装置

    公开(公告)号:US08873198B1

    公开(公告)日:2014-10-28

    申请号:US14444146

    申请日:2014-07-28

    Abstract: A motor includes a rotating portion including a sleeve portion and a stationary portion. The stationary portion includes a shaft component which includes an inner shaft portion and an outer shaft portion. A radial dynamic pressure generating groove array is provided on at least one surface of an inner circumferential surface of the sleeve portion and an outer circumferential surface of the outer shaft portion, which define the radial gap. The radial dynamic pressure generating groove array includes an upper radial dynamic pressure generating groove array and a lower radial dynamic pressure generating groove array. A range of a fixing region in an axial direction between the inner shaft portion and the outer shaft portion in an interference fit state is included in a range between the upper radial dynamic pressure generating groove array and the lower radial dynamic pressure generating groove array.

    Abstract translation: 马达包括具有套筒部和固定部的旋转部。 固定部包括轴部,该轴部包括内轴部和外轴部。 径向动压产生槽阵列设置在套筒部分的内圆周表面的至少一个表面和限定径向间隙的外轴部分的外圆周表面上。 径向动压产生槽阵列包括上径向动压产生凹槽阵列和下径向动压产生凹槽阵列。 在上部径向动态压力产生槽阵列和下部径向动态压力产生槽阵列之间的范围内包括在干涉配合状态下在内轴部和外轴部之间沿轴向方向的固定区域的范围。

    Optical element and optical scanning device

    公开(公告)号:US11586037B2

    公开(公告)日:2023-02-21

    申请号:US17015907

    申请日:2020-09-09

    Inventor: Takuro Iguchi

    Abstract: An optical element includes a plate portion including a reflecting surface on an upper surface in a direction of a vertically extending central axis, a shaft that extends in a direction of a first axis intersecting with the central axis and is fixed to a lower surface of the plate portion, a magnet below the shaft in the direction of the central axis, and a holder below the plate portion to hold the magnet, the holder including a magnet accommodating portion in which the magnet is accommodated, the magnet accommodating portion including a magnet pressing portion that covers at least a portion of a lower surface of the accommodated magnet.

    Spindle motor with particular rotor magnet and stator teeth dimensions and disk drive device including the same

    公开(公告)号:US10468954B2

    公开(公告)日:2019-11-05

    申请号:US16190446

    申请日:2018-11-14

    Abstract: A spindle motor includes a stationary unit and a rotating unit. The rotating unit is rotatable with respect to the stationary unit in a state in which the stationary unit is aligned with a central axis. The stationary unit includes a stator core and coils. The stator core includes a cylindrical core back and teeth units extending radially outward from an outer circumferential portion of the core back. The coils are defined by a conductive wire wound around each of the teeth units. The rotating unit includes a magnet located radially outside the teeth units. An axial length of the magnet is shorter than an axial length of the teeth unit. A first angle corresponding to a circumferential width of the teeth unit is smaller than a second angle corresponding to a circumferential gap between the adjacent teeth units.

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