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    • 4. 发明授权
    • Automotive alternator having brush device covered with surrounding wall
    • 具有覆盖有周围壁的刷装置的汽车交流发电机
    • US08089193B2
    • 2012-01-03
    • US12219370
    • 2008-07-21
    • Akihiro TanakaHiroshi Ishida
    • Akihiro TanakaHiroshi Ishida
    • H01R39/38H02K13/00
    • H02K5/141H02K2205/09
    • An alternator for generating electric power is mounted on an automotive vehicle. The alternator includes a housing, a stator fixed in the housing, a rotor driven by an engine of the automotive vehicle, and electric components such as a brush holder. The brush holder is mounted on a rear surface of a rear frame constituting the housing and is covered with a rear cover fixed to the rear frame. The rear cover includes a surrounding wall covering the brush device to prevent water from reaching a brush area. The surrounding wall is composed of plural partial walls having respective radiuses from a rotational axis of the rotor. The surrounding wall may be continuously made by the partial walls. Alternatively, openings for draining water may be formed in the partial walls positioned downward of the rotational axis of the rotor.
    • 用于发电的交流发电机安装在机动车辆上。 交流发电机包括壳体,固定在壳体中的定子,由机动车辆的发动机驱动的转子以及诸如电刷架的电气部件。 刷架安装在构成壳体的后框架的后表面上,并且被固定到后框架的后盖覆盖。 后盖包括覆盖刷装置的周围壁,以防止水到达刷子区域。 周围的壁由具有来自转子的旋转轴线的相应半径的多个部分壁组成。 周围的壁可以由部分壁连续地制成。 或者,可以在位于转子的旋转轴线的下方的部分壁中形成用于排水的开口。
    • 9. 发明申请
    • LENS ACTUATOR, OPTICAL PICKUP DEVICE, AND OPTICAL RECORDING AND REPRODUCING APPARATUS
    • 镜头执行器,光学拾取器件和光学记录和再现装置
    • US20080189727A1
    • 2008-08-07
    • US12022847
    • 2008-01-30
    • Akihiro Tanaka
    • Akihiro Tanaka
    • G11B7/09G02B7/04
    • G11B7/0935G11B7/1275G11B7/1353G11B7/13925G11B2007/0006
    • A disclosed lens actuator includes: an objective lens condensing a light beam on an optical storage medium; a diffractive element providing compatibility with plural types of optical storage media relative to light sources of plural different wavelengths; and a lens holder including the objective lens and diffractive element in an opposing manner. The objective lens is driven with the lens holder in at least a focusing direction and tracking direction relative to the optical storage medium. At least three protrusions are set on the lens holder in directions orthogonal to an optical axis of the objective lens. The protrusions are in contact with at least one of circumferential surfaces of the objective lens and the diffractive element and position the objective lens or the diffractive element. An end surface of the protrusion in contact with the circumferential surface of the objective lens or the diffractive element has a plane surface.
    • 公开的透镜致动器包括:将光束聚光在光学存储介质上的物镜; 提供与多种类型的光学存储介质相对于多种不同波长的光源的兼容性的衍射元件; 以及以相对的方式包括物镜和衍射元件的透镜架。 物镜相对于光存储介质至少在聚焦方向和跟踪方向上由透镜架驱动。 至少三个凸起在与物镜的光轴正交的方向上设置在透镜架上。 突起与物镜和衍射元件的至少一个圆周表面接触并定位物镜或衍射元件。 与物镜或衍射元件的圆周表面接触的突起的端面具有平面。