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公开(公告)号：US20240313670A1
公开(公告)日：2024-09-19
申请号：US18508350
申请日：2023-11-14
Applicant: CAIRDAC
Inventor： Willy REGNIER , An NGUYEN-DINH
CPC classification number: H02N2/186 , A61N1/37205 , H02N2/006 , H02N2/0085 , H02N2/181 , H02N2/22
Abstract: The harvester comprises a pendular unit comprising a beam that is elastically deformable in bending, a mount clamping a proximal end of the beam, and an inertial mass mounted at a free, distal end of the beam. The beam converts into an oscillating electric signal a mechanical energy produced by oscillations of the pendular unit. The piezoelectric beam comprises a flexible structure including: a central core; a piezoelectric layer on at least one face of the central core; and at least one surface electrode on an external face of the piezoelectric layer. The central core of the flexible structure is a semiconductor material adapted to form an integrated circuit substrate, and the flexible structure includes at least part of components of an electric or electronic unit, said components being monolithically integrated within the semiconductor material substrate.
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公开(公告)号：US20190222147A1
公开(公告)日：2019-07-18
申请号：US16246365
申请日：2019-01-11
Applicant: CANON KABUSHIKI KAISHA
Inventor： Kazuharu Osawa
CPC classification number: H02N2/103 , G02B7/08 , H02N2/001 , H02N2/006 , H02N2/0065
Abstract: A vibration motor includes a vibrator, a friction member, and a pressurizing unit. The vibrator includes projecting portions and is vibrated by application of a driving voltage. The projecting portions are arranged in vicinities of nodes of the vibration, respectively. The friction member has a sliding surface formed of a curved surface with which the projecting portions come into contact. The pressurizing unit pressurizes the vibrator against the friction member with a pressurizing force. When the vibrator is vibrated, a driving force is generated in a tangential direction of the sliding surface by the vibration to drive the friction member relative to the vibrator, and each of the projecting portions generates an elliptic motion by the vibration. The elliptic motion is generated with an inclination at a predetermined angle with respect to the curved surface of the sliding surface.
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公开(公告)号：US20190222146A1
公开(公告)日：2019-07-18
申请号：US16246644
申请日：2019-01-14
Applicant: CTS Corporation
Inventor： Charles E. Mangeot
CPC classification number: H02N2/043 , F16F1/027 , H01L41/0536 , H02N2/006 , H02N2/067
Abstract: A pre-loaded piezoelectric stack actuator comprising a stack of piezoelectric material. Caps are coupled at opposed ends of the stack. Each of the caps includes projecting fingers. Insulating plates are stacked between the ends of the stack and the caps. A pair of pre-loaded spring plates are coupled to the stack. The spring plates define slots. The fingers on the caps extend through respective ones of the slots at respective ends of the spring plates for coupling the spring plates to the stack. A method of pre-loading the piezoelectric stack actuator includes the step of mounting the stack, the caps, the insulating plates, and the spring plates in a pre-load tool that applies a pre-load tensile stretching force to the spring plates. The pre-load tensile force is subsequently released and the actuator is removed from the tool.
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公开(公告)号：US20190222145A1
公开(公告)日：2019-07-18
申请号：US16245449
申请日：2019-01-11
Applicant: CANON KABUSHIKI KAISHA
Inventor： Yuki Oda , Makoto Shihoh
Abstract: A vibrating type actuator which hardly causes a failure and can suppress occurrence of abnormal noise while not preventing vibration from being excited in a vibrator. The vibrating type actuator comprises a vibrator in which vibration is excited, and a contact body which is in contact with the vibrator, wherein the vibrator and the contact body move relatively to each other. The vibrating type actuator comprises a holding member which holds the vibrator, a pressurizing member which pressurizes the vibrator against the contact body, a support member which movably supports the holding member in a pressurizing direction, in which the pressurizing member performs pressurization, and an vibration damping member which is in contact with the holding member at a plurality of portions while sandwiching the holding member in a direction orthogonal to the pressurizing direction.
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公开(公告)号：US20180254718A1
公开(公告)日：2018-09-06
申请号：US15908889
申请日：2018-03-01
Applicant: CANON KABUSHIKI KAISHA
Inventor： Kenta Takai
CPC classification number: H02N2/046 , B06B1/0644 , G02B7/04 , G02B7/08 , G03B3/10 , G03B13/34 , G03B2205/0061 , H02N2/001 , H02N2/006 , H02N2/0065 , H02N2/026
Abstract: Disclosed is a vibration wave motor including: a vibrator provided with a piezoelectric element and a vibration plate; a frictional member having a frictional contact surface coming into contact with the vibrator; a fixing member having a recess to which the frictional member is fixed; and pressurizing unit that pressurizes the vibrator toward the frictional member, wherein the vibrator and the frictional member make relative movement using vibration generated from the vibrator, a fixing material for fixing the frictional member is provided between the frictional member and the fixing member, and the frictional member is fixed by coming into contact with the fixing member.
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Patent Agency Ranking
公开(公告)号：US20180131292A1
公开(公告)日：2018-05-10
申请号：US15572342
申请日：2016-05-09
Applicant: PHYSIK INSTRUMENTE (PI) GMBH & CO. KG
Inventor： Reinhard HÜBNER , Hansjörg LUCKERT
Abstract: Disclosed is a piezoelectric rotary drive for a shaft, which includes a piezoelectric actuator, a deformable frame that can be coupled with a coupling section to the shaft in a force-fit manner in order to accomplish a stick-slip drive, and a loading device which can apply a preloading force to the coupling section and/or the actuator and/or the shaft. To facilitate production and assembly, the loading device can be a leaf spring which in the relaxed state extends substantially in a plane, such as along a straight line.
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公开(公告)号：US20170315325A1
公开(公告)日：2017-11-02
申请号：US15485652
申请日：2017-04-12
Applicant: CANON KABUSHIKI KAISHA
Inventor： Yuki Oda , Hiroyuki Seki
CPC classification number: G02B7/09 , B06B1/0648 , G02B7/08 , H01L41/09 , H02N2/0015 , H02N2/006 , H02N2/026
Abstract: A vibration actuator that is capable of bringing a vibration body into pressure contact with a driven body stably during long time while reducing obstruction of excitation of vibration in the vibration body by the pressure force. The driven body is in contact with the vibration body by pressure force given by a pressing member. A vibration isolation member is arranged between the vibration body and the pressing member. The vibration body and the driven body move relatively by vibrations in first and second vibration modes that are excited in the vibration body by applying alternating voltage to a piezoelectric device on the vibration body. Face pressure that acts to the piezoelectric device by the pressure force from the pressing member in first and second areas that respectively include nodal lines in the first and second vibration modes and their vicinities is higher than that in the other area.
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公开(公告)号：US20160149114A1
公开(公告)日：2016-05-26
申请号：US14935751
申请日：2015-11-09
Applicant: CANON KABUSHIKI KAISHA
Inventor： Masato SHIONO
Abstract: A driving apparatus comprises a plurality of vibrators vibrating by application of a high-frequency voltage thereto; a friction member in frictional contact with the vibrators; and a pressing portion for bringing the vibrators into pressed contact with the friction member, wherein the plurality of vibrators are arranged to be juxtaposed and a single drive force is extracted by moving the plurality of vibrators relative to the friction member, and wherein a position where the drive force is extracted is a central position of the plurality of vibrators in a direction in which the plurality of vibrators are juxtaposed and is close to a frictional contact position in a pressing direction of the pressing portion.
Abstract translation: 驱动装置包括通过施加高频电压而振动的多个振动器; 与振动器摩擦接触的摩擦构件; 以及用于使振动器与摩擦构件压接的按压部分，其中多个振动器被布置成并置，并且通过相对于摩擦构件移动多个振动器来提取单个驱动力，并且其中， 提取驱动力是多个振动器沿着多个振动器并列的方向的中心位置，并且在按压部的按压方向上接近摩擦接触位置。
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公开(公告)号：US20150303833A1
公开(公告)日：2015-10-22
申请号：US14788006
申请日：2015-06-30
Applicant: CANON KABUSHIKI KAISHA
Inventor： Nobuyuki Kojima
IPC: H02N2/10
CPC classification number: H02N2/103 , F16H33/20 , H02N2/0015 , H02N2/0055 , H02N2/006 , Y10T74/18056
Abstract: A vibration type driving device includes a vibrator configured to make an elliptic motion of a contact portion by combining vibrations in different vibration modes, and a driven body configured to be rotated relative to the vibrator by the elliptic motion while being in contact with the contact portion. A contact pressure of the contact portion with the driven body is lower on a radial inner side than on a radial outer side in a radial direction of the rotation.
Abstract translation: 一种振动型驱动装置，包括：振动器，被配置为通过组合不同振动模式的振动来形成接触部分的椭圆运动;以及被配置成通过椭圆运动而相对于振动器旋转的从动体与接触部分接触 。 接触部与被驱动体的接触压力在径向内侧比旋转径向的径向外侧低。
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公开(公告)号：US20150076965A1
公开(公告)日：2015-03-19
申请号：US14026666
申请日：2013-09-13
Applicant: Physik Instrumente (PI) GmbH & Co., KG
Inventor： William Culpi
IPC: H02N2/00
CPC classification number: H02N2/006 , G05B19/40 , G05B2219/41344 , H02N2/025 , H02N2/101
Abstract: A motion control system that includes a base, a stage supported by the base and movable with respect to the base, and a motor coupled to the base and operable to move the stage. The motor includes a mounting base arranged to connect the motor to the base, a friction pad engageable with the stage, and a coupling portion including a first end connected to the mounting base and a second end. The friction pad is connected to the coupling portion between the first end and the second end. A piezoelectric element is disposed between the mounting base and the second end and is operable in response to an electrical signal to move the friction pad and the stage. A mounting screw is accessible from an exterior of the base and engages the coupling portion. The mounting screw is the sole attachment mechanism between the motor and the base
Abstract translation: 一种运动控制系统，包括基座，由基座支撑并可相对于基座移动的台架，以及联接到基座并可操作以移动台架的马达。 电动机包括安装基座，其被布置成将马达连接到基座，可与平台接合的摩擦垫，以及耦合部分，其包括连接到安装基座的第一端和第二端。 摩擦垫连接到第一端和第二端之间的连接部分。 压电元件设置在安装基座和第二端之间，并且响应于电信号而可操作以移动摩擦垫和台架。 安装螺钉可从基座的外部接近并与联接部分接合。 安装螺钉是电机和底座之间的唯一安装机构
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