公开(公告)号：US20090021118A1

公开(公告)日：2009-01-22

申请号：US12163662

申请日：2008-06-27

申请人： Ryota SASAKI

发明人： Ryota SASAKI

IPC分类号： H02N2/08

CPC分类号： H02N2/025

摘要： A driving apparatus comprises: an electromechanical conversion element that expands and contracts in an extending direction of a given fiducial line; a driving shaft mounted on one end of the electromechanical conversion element in the extending direction; a driven member frictionally engaged with the driving shaft; a holder that supports the electromechanical conversion element from lateral sides with respect to extending direction; and an urging member that urges the electromechanical conversion element in the extending direction.

摘要翻译： 驱动装置包括：机电转换元件，其在给定基准线的延伸方向上膨胀和收缩; 驱动轴，其安装在所述机电转换元件的延伸方向的一端; 与驱动轴摩擦接合的从动构件; 从相对于延伸方向的侧面支撑机电转换元件的保持器; 以及在延伸方向上推压机电转换元件的施力构件。

公开(公告)号：US07382080B2

公开(公告)日：2008-06-03

申请号：US11139516

申请日：2005-05-31

申请人： Gui Youn Lee ,  Dong Kyun Lee ,  Jung Ho Ryu ,  Byung Woo Kang ,  Hyoung Jun Jeon

发明人： Gui Youn Lee ,  Dong Kyun Lee ,  Jung Ho Ryu ,  Byung Woo Kang ,  Hyoung Jun Jeon

IPC分类号： H02N2/08

CPC分类号： H02N2/147 ,  H02N2/0015

摘要： The present invention provides a piezoelectric ultrasonic motor driver which can perform self-oscillation, adjust the rotational direction of the motor, and be easy to manufacture. The motor includes a metal body having a desired shape; a plurality of piezoelectric plates attached to surfaces of the metal body, contracted and expanded to rotate the metal body; a self-oscillation unit for oscillating at an electromechanical frequency of the piezoelectric plates an electrical signal; and a delay unit for delaying an oscillation signal of the self-oscillation unit in phase by 90 or −90 degrees according to a desired rotational direction.

摘要翻译： 本发明提供一种能够进行自振荡的压电超声波马达驱动器，调整电动机的旋转方向，易于制造。 马达包括具有期望形状的金属体; 多个压电板，附接到金属体的表面，收缩并膨胀以使金属体旋转; 自振荡单元，用于在压电板的机电频率处振荡电信号; 以及延迟单元，用于根据期望的旋转方向将自振荡单元的振荡信号相位延迟90度或-90度。

公开(公告)号：US07061156B2

公开(公告)日：2006-06-13

申请号：US11167202

申请日：2005-06-28

申请人： Kenichi Kataoka

发明人： Kenichi Kataoka

IPC分类号： H02N2/08 ,  H02N2/16

CPC分类号： H02N2/142 ,  H02P25/032

摘要： The present invention relates to apparatus achieving improvement in operation characteristics in the operation of stopping or reversing the direction of or decelerating movement of a vibrating wave actuator constructed to apply an alternating voltage to an electro-mechanical energy conversion element to vibrate a vibration member to obtain a driving force. In the operation of stopping the vibrating wave actuator, it is necessary to cancel the vibration to stop the actuator, in order to stop the actuator in good response. The present invention has achieved the above object by applying an excitation signal, which excites vibration in a direction to cancel free vibration in the vibration member, to the electro-mechanical energy conversion element in the stop operation or the like.

公开(公告)号：US20050179343A1

公开(公告)日：2005-08-18

申请号：US10778348

申请日：2004-02-17

申请人： Stefan Johansson ,  Mats Bexell ,  Anders Jansson

发明人： Stefan Johansson ,  Mats Bexell ,  Anders Jansson

IPC分类号： B81B3/00 ,  H01L41/04 ,  H01L41/083 ,  H01L41/09 ,  H02N2/04 ,  H02N2/08

CPC分类号： H02N2/021 ,  H01L41/083 ,  H01L41/0913 ,  H02N2/009

摘要： An electromechanical actuator 10 is disclosed, having drive elements (14a-d) movable in two dimensions and connected to an actuator backing (12). The actuator backing (12) is made of a material being ferromechanically inactive. Furthermore, the joint between the drive element (14a-d) and the actuator backing (12) is stiff and highly stable. This is achieved by use of an irreversible joint made e.g. by thermoset plastic glues, diffusion bonding or co-sintering. Co-sintering is to prefer. The actuator backing (12) material is selected to be stiff, preferably having a stiffness above 70 GPa and more preferably above 100 GPa, and having a high heat conductivity, preferably above 5 W/mK and more preferably above 10 W/mK, Electrodes (22) are preferably integrated in the actuator backing to increase stiffness as well as improving the heat conductivity. The drive elements (14a-d) are preferably covered (28, 26), at least at the driving surface, by heat-conducting material.

摘要翻译： 公开了一种机电致动器10，其具有可在两个维度上移动并连接到致动器背衬（12）的驱动元件（14a-d）。 致动器背衬（12）由铁机械不起作用的材料制成。 此外，驱动元件（14a-d）和致动器背衬（12）之间的接合是刚性且高度稳定的。 这通过使用例如不可逆的接头来实现。 通过热固性塑料胶，扩散粘合或共烧结。 共烧是喜欢的。 致动器背衬（12）材料选择为刚性的，优选具有高于70GPa，更优选高于100GPa的刚度，并且具有高导热性，优选高于5W / mK，更优选高于10W / m·K，电极 （22）优选地集成在致动器背衬中以增加刚度并提高导热性。 驱动元件（14a-d）优选至少在驱动表面处被导热材料覆盖（28,26）。

公开(公告)号：US20050023933A1

公开(公告)日：2005-02-03

申请号：US10936052

申请日：2004-09-08

申请人： Bjoern Magnussen ,  Peter Varadi ,  Benjamin Hagemann ,  Steven Schofield ,  Erick Davidson

发明人： Bjoern Magnussen ,  Peter Varadi ,  Benjamin Hagemann ,  Steven Schofield ,  Erick Davidson

IPC分类号： H01L41/09 ,  H02N2/00 ,  H02N2/04 ,  H02N2/08

CPC分类号： H01L41/0906

摘要： A single piezoelectric is excited at a first frequency to cause two vibration modes in a resonator producing a first elliptical motion in a first direction at a selected contacting portion of the resonator that is placed in frictional engagement with a driven element to move the driven element in a first direction. A second frequency excites the same piezoelectric to cause two vibration modes of the resonator producing a second elliptical motion in a second direction at the selected contacting portion to move the driven element in a second direction. The piezoelectric is preloaded in compression by the resonator. Walls of the resonator are stressed past their yield point to maintain the preload. Specially shaped ends on the piezoelectric help preloading. The piezoelectric can send or receive vibratory signals through the driven element to or from sensors to determine the position of the driven element relative to the piezoelectric element or resonator. Conversely, the piezoelectric element can receive vibration or electrical signals passed through the driven element to determine the position of the driven element. The resonator is resiliently urged against the driven element, or vice versa. Plural resonators can drive common driven elements.

摘要翻译： 单个压电体以第一频率被激发，以在谐振器中产生第一方向上的两个振动模式，在谐振器的选定接触部分处产生第一椭圆运动，该接触部分与被驱动元件摩擦接合以使被驱动元件移动 第一个方向。 第二频率激励相同的压电体，使得谐振器的两个振动模式在所选择的接触部分处沿第二方向产生第二椭圆运动，以沿第二方向移动被驱动元件。 压电体被谐振器压缩预压。 共振器的壁受到压力超过其屈服点，以保持预压。 压电帮助预加载时特殊形状的端部。 压电可以通过从动元件向传感器发送或接收振动信号，以确定从动元件相对于压电元件或谐振器的位置。 相反，压电元件可以接收通过从动元件的振动或电信号，以确定从动元件的位置。 谐振器被弹性地推靠在被驱动元件上，反之亦然。 多个谐振器可以驱动通用的驱动元件。

公开(公告)号：US5936328A

公开(公告)日：1999-08-10

申请号：US845215

申请日：1997-04-21

申请人： Hironori Takano ,  Masami Sugimori

发明人： Hironori Takano ,  Masami Sugimori

IPC分类号： H01L41/09 ,  H02N2/08 ,  H01L41/08

CPC分类号： H02N2/004 ,  H02N2/0085 ,  H02N2/026

摘要： A vibration driven actuator includes a vibration member for causing an electro-mechanical energy conversion element to excite bending and longitudinal vibrations, and producing a driving force by using specific vibrations obtained by synthesizing the bending and longitudinal vibrations, and a projection portion formed at a position, on at least one of the energy conversion element and the vibration member, which corresponds to a node of the bending vibrations. The projection portion is used for supplying a signal to the energy conversion element.

摘要翻译： 振动驱动致动器包括用于使机电能量转换元件激发弯曲和纵向振动的振动构件，并且通过使用通过合成弯曲和纵向振动获得的特定振动产生驱动力，以及形成在位置 在能量转换元件和振动元件中的至少一个上，其对应于弯曲振动的节点。 投影部分用于向能量转换元件提供信号。

公开(公告)号：US5821670A

公开(公告)日：1998-10-13

申请号：US774373

申请日：1996-12-27

申请人： Michihiro Tobe ,  Tadao Takagi

发明人： Michihiro Tobe ,  Tadao Takagi

IPC分类号： H02N2/00 ,  H01L41/09 ,  H02N2/08

CPC分类号： H02N2/026 ,  H02N2/004

摘要： A vibration actuator is provided which is capable of generating a bending vibration having a sufficient amplitude to allow production of a large driving force in a direction perpendicular to the axis of the bending vibration. Specifically, the vibration actuator generates a primary mode longitudinal vibration and a fourth mode bending vibration harmonically in an elastic body, so that a portion of the elastic body having a driving protrusion moves cyclically along an elliptical path. The driving protrusion comes into contact with a relative moving body along a section of the elliptical path, and thus exerts a driving force on the relative moving body. Reduced rigidity portions formed in the elastic body preferably at positions corresponding to antinodes of the bending vibration allow the bending vibration, and therefore also the driving force, to have greater amplitudes.

摘要翻译： 提供一种振动致动器，其能够产生具有足够振幅的弯曲振动，以允许在垂直于弯曲振动的轴线的方向上产生大的驱动力。 具体地说，振动致动器在弹性体中产生主模式纵向振动和第四模式弯曲振动，使得具有驱动突起的弹性体的一部分沿椭圆形路径循环移动。 驱动突起沿着椭圆路径的一部分与相对移动体接触，从而在相对移动体上施加驱动力。 优选地，在弹性体中形成的刚性部分优选地在与弯曲振动的波腹相对应的位置处，使得弯曲振动，并因此驱动力具有更大的振幅。

公开(公告)号：US5600196A

公开(公告)日：1997-02-04

申请号：US415673

申请日：1995-04-03

申请人： Jun Tamai

发明人： Jun Tamai

IPC分类号： H02N2/00 ,  H01L41/09 ,  H02N2/08 ,  H02N2/10 ,  H02N2/12 ,  H01L41/08

CPC分类号： H02N2/0015 ,  H02N2/106

摘要： A vibration driven motor is arranged so that a vibration member and a movable member are moved relative to each other by utilizing non-travelling vibration. A supporting member for the motor is disposed at the position of the loop of the aforesaid vibration.

摘要翻译： 振动驱动电动机被布置成使得振动构件和可动构件通过利用非行进振动相对于彼此移动。 电动机的支撑构件设置在上述振动环路的位置。

公开(公告)号：US5554905A

公开(公告)日：1996-09-10

申请号：US384335

申请日：1995-02-01

申请人： Michel Gschwind ,  Tatsumi Mitsuta ,  Daniel Guyomar ,  Jean-Denis Sauzade ,  Thierry Mazoyer

发明人： Michel Gschwind ,  Tatsumi Mitsuta ,  Daniel Guyomar ,  Jean-Denis Sauzade ,  Thierry Mazoyer

IPC分类号： H02N2/00 ,  H01L41/08 ,  H01L41/09 ,  H02N2/08 ,  H02N2/12

CPC分类号： H02N2/166

摘要： A piezoelectric rotating motor includes a plurality of piezoelectric elements, a disk-shaped stator having a center portion in which the piezoelectric elements are accommodated, a circular friction zone which is formed on an outer peripheral portion of its one surface and a connecting portion which connects the center portion with the friction zone so as to form a lever transmitting and amplifying the axial strain of the piezoelectric elements to the portion of the friction zone located in the same angular sector as the piezoelectric elements and which has a cone shape at rear side of the friction zone so as to thin its thickness from the center portion to the outer peripheral portion and producing a progressive wave forming an elliptical vibration on the friction zone by the composition of its three dimensional strain due to the piezoelective effect of the piezoelectric elements and a rotor being contracted with the friction zone under pressure.

摘要翻译： 压电旋转电动机包括多个压电元件，具有容纳压电元件的中心部分的圆盘形定子，形成在其一个表面的外周部分上的圆形摩擦区域和连接 具有摩擦区域的中心部分，以形成将压电元件的轴向应变传递和放大到位于与压电元件相同的角度部分中的摩擦区域的部分的杆，并且其在后侧具有锥形形状 所述摩擦区域使其厚度从中心部分减薄到外周部分，并且由于压电元件的压电效应而通过其三维应变的组成产生在摩擦区域上形成椭圆振动的行波，以及 转子在压力下与摩擦区收缩。

公开(公告)号：US5404065A

公开(公告)日：1995-04-04

申请号：US140400

申请日：1993-10-25

申请人： Tadao Takagi

发明人： Tadao Takagi

IPC分类号： H02N2/00 ,  H01L41/09 ,  H02N2/08 ,  H01L41/08

CPC分类号： H02N2/08

摘要： The ultrasonic actuator of the present invention includes a rod shaped vibration body having a plurality of faces, an exciter which is provided on a one of the faces for vibration excitation of the vibration body and which generates traveling waves which progress along this face for vibration excitation, and a movable member which is pressed against the vibration body and is moved by the traveling waves. The vibration body is so formed that the traveling waves which progress along the face for vibration excitation of the vibration body are transmitted to a face of the vibration body other than its face for vibration excitation, and are recirculated back to the face for vibration excitation again.

摘要翻译： 本发明的超声波致动器包括具有多个面的杆状振动体，激振器，设置在振动体的振动激励的一个面上，并产生沿着该面朝向振动激励的行进波 以及被压靠在振动体上并被行波移动的可动构件。 振动体被形成为使得沿着振动体的振动激励的沿着面向前进的行波传递到振动体以外的振动体的面以进行振动激励，并且再次被再循环回到面以进行振动激励 。