知搜-全球专利检索

  1. Login
  2. Sign Up

Search Results

424 records (took 0.012 seconds)

    Vibration driven actuator
    71.
    发明授权
    Vibration driven actuator 失效
    振动驱动执行器

    公开(公告)号：US5352949A

    公开(公告)日：1994-10-04

    申请号：US935422

    申请日：1992-08-26

    Applicant: Masaharu Eguchi ,  Mitsuru Shinohara

    Inventor： Masaharu Eguchi ,  Mitsuru Shinohara

    IPC: G02B7/08 ,  H01L41/09 ,  H02N2/12 ,  G02B7/04

    CPC classification number: H02N2/123 ,  H02N2/106

    Abstract: A first ball lace and a second ball lace, which is arranged at a position opposite to the first ball lace to sandwich a ball between itself and the first ball lace are coaxially assembled in a pencil shaped vibration driven motor or actuator, so that the second ball lace can be operated externally, and the rotational force of the ball can be output to an external device.

    Abstract translation: 布置在与第一球形花边相对的位置处的第一球形花边和第二球形花边，以将其自身与第一球形花边夹在一起，同轴地组装在铅笔形振动驱动的马达或致动器中，使得第二球形花边 球形花边可以从外部操作，并且球的旋转力可以输出到外部装置。

    Ultrasonic oscillator and ultrasonic motor using the same
    72.
    发明授权
    Ultrasonic oscillator and ultrasonic motor using the same 失效
    超声波振荡器和超声波电机使用相同

    公开(公告)号：US5162692A

    公开(公告)日：1992-11-10

    申请号：US636553

    申请日：1991-01-04

    Applicant: Takanao Fujimura

    Inventor： Takanao Fujimura

    IPC: H01L41/09 ,  H02N2/12

    CPC classification number: H02N2/002 ,  H02N2/0065 ,  H02N2/026 ,  H02N2/103

    Abstract: Disclosed is an ultrasonic oscillator comprising piezoelectric elements and a resonator fixed thereto and having one or more inclined surfaces, elliptical oscillations being generated at the front end of the resonator. Also disclosed is an ultrasonic motor utilizing this oscillator and adapted to rotate a rotatably supported rotor by pressing it with an appropriate pressurizing force against the section where the elliptical oscillations are generated.

    Abstract translation: 公开了一种包括压电元件和固定在其上的共振器的超声波振荡器，其具有一个或多个倾斜表面，在谐振器的前端产生椭圆振荡。 还公开了一种利用该振荡器的超声波电动机，其适于通过以适当的加压力对可旋转地支撑的转子旋转，以产生椭圆振荡的部分。

    Vibration motor
    73.
    发明授权
    Vibration motor 失效
    振动电机

    公开(公告)号：US5159224A

    公开(公告)日：1992-10-27

    申请号：US708650

    申请日：1991-05-30

    Applicant: Claus Kramer ,  Bernd Taubitz ,  Karl-Heinz Haegele

    Inventor： Claus Kramer ,  Bernd Taubitz ,  Karl-Heinz Haegele

    IPC: H02N2/00 ,  H01L41/09 ,  H02N2/12 ,  H02N2/16 ,  H02N10/00

    CPC classification number: H02N2/16

    Abstract: A vibration motor having a disk-shaped stator containing a piezoelectric excitation system, a disk-shaped rotor aligned parallel to the stator and mounted on a driven shaft in a manner fixed against relative rotation, and a pressing element that presses the rotor and stator together axially. To assure free travel of the driven shaft when the motor is currentless, the pressing element is embodied as a force-transmitting element that changes shape as a function of temperature, for instance a compression spring of memory metal. In motor operation, the element is kept at a temperature above its temperature point for the shape change, and it is disposed such that the pressing force between the rotor and stator diminishes as a result of the shape change ensuing if the temperature drops below this temperature point.

    Abstract translation: 一种振动电动机，其具有包含压电激励系统的圆盘状定子，平行于定子并且以相对旋转固定的方式安装在从动轴上的圆盘状转子，以及将转子和定子压在一起的按压元件 轴向。 为了确保当电动机无电流时从动轴的自由行进，按压元件被实施为作为温度变化的形状的力传递元件，例如存储金属的压缩弹簧。 在电动机运行中，元件保持在高于其温度点的温度以进行形状变化，并且它被设置成使得如果温度降到该温度以下，随着形状变化的结果，转子和定子之间的按压力将减小 点。

    Piezoelectric dither motor
    74.
    发明授权
    Piezoelectric dither motor 失效
    压电式抖动电机

    公开(公告)号：US4987334A

    公开(公告)日：1991-01-22

    申请号：US394787

    申请日：1989-08-15

    Applicant: Douglas R. Jungwirth

    Inventor： Douglas R. Jungwirth

    IPC: G01C19/70 ,  H01L41/09 ,  H02N2/12

    CPC classification number: H01L41/0993 ,  G01C19/70

    Abstract: Dither motor apparatus for oscillating a structure, such as a laser gyroscope 10, about a dither axis "A". The dither motor apparatus includes a support 18 that passes through an opening 16 within the gyroscope. The apparatus further includes a plurality of piezoelectric elements 22 individual ones of which are interposed between an outer surface of the support and an inner surface of the opening such that an outer surface of each of the elements is rigidly coupled to the inner surface of the opening and an inner surface of each of the elements is rigidly coupled to the outer surface of the support. The apparatus further includes a source 24 of alternating current coupled to electrodes 26 for energizing the plurality of piezoelectric elements for causing each of the elements to shear such that the outer surface of each of the elements rotates alternately clockwise and counter-clockwise with respect to the inner surface of each of the elements, thereby imparting an oscillatory motion to the gyroscope about the dither axis.

    Abstract translation: 抖动电动机装置，用于围绕抖动轴线“A”振荡诸如激光陀螺仪10的结构。 抖动马达装置包括穿过陀螺仪内的开口16的支架18。 该装置还包括多个压电元件22，其中单独的压电元件插入在支撑件的外表面和开口的内表面之间，使得每个元件的外表面刚性地联接到开口的内表面 并且每个元件的内表面刚性地联接到支撑件的外表面。 该装置还包括耦合到电极26的交流电源24，用于激励多个压电元件，以使每个元件被剪切，使得每个元件的外表面相对于 每个元件的内表面，从而使陀螺仪围绕抖动轴线产生振荡运动。

    Optical element driving mechanism with piezoelectric driving assembly
    77.
    发明授权
    Optical element driving mechanism with piezoelectric driving assembly 有权

    公开(公告)号：US12224684B2

    公开(公告)日：2025-02-11

    申请号：US17866190

    申请日：2022-07-15

    Applicant: TDK TAIWAN CORP.

    Inventor： Shu-Shan Chen ,  Pai-Jui Cheng

    IPC: H02N2/12 ,  G03B17/56 ,  H02N2/14

    Abstract: An optical element driving mechanism is provided in the present disclosure, including a fixed portion, a movable portion that is connected to an optical assembly, and a driving assembly that drives the movable portion to move relative to the fixed portion and includes a piezoelectric element. The piezoelectric element includes a piezoelectric unit, a guiding element, and a counterweight element. A first end of the guiding element is connected to the piezoelectric unit, and a second end is connected to the fixed portion. The counterweight element is connected to the piezoelectric unit. The fixed portion comprises a bottom that has a first through hole and a second through hole. The first through hole corresponds to the piezoelectric unit and the counterweight element, accommodates a part of the piezoelectric unit and the counterweight element. The second through hole corresponds to the guiding element, accommodates the second end of the guiding element.

    Electrostatic motor
    80.
    发明授权
    Electrostatic motor 有权

    公开(公告)号：US11870368B2

    公开(公告)日：2024-01-09

    申请号：US17234520

    申请日：2021-04-19

    Applicant: C-Motive Technologies, Inc.

    Inventor： Ryan Knippel ,  William D. Butrymowicz ,  Baoyun Ge

    IPC: H02N1/00 ,  H02N2/12 ,  H02N2/14

    CPC classification number: H02N1/006 ,  H02N1/002 ,  H02N1/004 ,  H02N2/12 ,  H02N2/14

    Abstract: An example apparatus including a rotor stage of an electrostatic machine, the rotor stage including a rotor plate, at least one rotor via, a rotor power distribution board including at least one rotor power distribution bus, at least one rotor power coupling perforation, and a rotor electrical coupling circuit; a stator stage of the electrostatic machine, the stator stage including a stator plate, at least one stator via, a stator power distribution board including at least one stator power distribution bus, at least one stator power coupling perforation; and a stator electrical coupling circuit structured to electrically couple the at least one stator power distribution bus to at least a portion of the plurality of stator electrodes, wherein the stator electrical coupling circuit extends through the at least one stator via and the at least one stator power coupling perforation.

Patent Agency Ranking