公开(公告)号：US20080034749A1

公开(公告)日：2008-02-14

申请号：US11501405

申请日：2006-08-09

Applicant: Ukpai I. Ukpai ,  Norman K. Bucknor ,  Xiujie Gao ,  Alan L. Browne ,  Nancy L. Johnson ,  Andrew C. Keefe ,  Guillermo A. Herrera

Inventor： Ukpai I. Ukpai ,  Norman K. Bucknor ,  Xiujie Gao ,  Alan L. Browne ,  Nancy L. Johnson ,  Andrew C. Keefe ,  Guillermo A. Herrera

IPC: F01B29/10

CPC classification number: F03G7/065 ,  H02N2/02 ,  H02N2/021 ,  H02N2/101

Abstract: An active material actuator assembly is provided having first and second active material components operatively connected to a movable member. Movement of the movable member is modulated, which may be due to activation of the first and second active material components being at least partially temporally distinct or the active material components differing in at least one characteristic affecting movement.

Abstract translation: 提供了一种活性材料致动器组件，其具有可操作地连接到可移动构件的第一和第二活性材料部件。 可移动构件的运动被调制，这可能是由于第一和第二活性材料组分的活化至少部分地在时间上不同或活性材料组分在至少一个影响运动的特征中不同。

公开(公告)号：US07067958B2

公开(公告)日：2006-06-27

申请号：US10778348

申请日：2004-02-17

Applicant: Stefan Johansson ,  Mats Bexell ,  Anders Jansson

Inventor： Stefan Johansson ,  Mats Bexell ,  Anders Jansson

IPC: H02N2/02 ,  H01L41/16

CPC classification number: H02N2/021 ,  H01L41/083 ,  H01L41/0913 ,  H02N2/009

Abstract: 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.

Abstract translation: 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：US06988301B2

公开(公告)日：2006-01-24

申请号：US11007485

申请日：2004-12-08

Applicant: Yukihisa Takeuchi ,  Hiroyuki Tsuji ,  Kazumasa Kitamura ,  Nobuo Takahashi ,  Koji Kimura

Inventor： Yukihisa Takeuchi ,  Hiroyuki Tsuji ,  Kazumasa Kitamura ,  Nobuo Takahashi ,  Koji Kimura

IPC: H04R17/00 ,  H01L41/04 ,  H01L41/08 ,  H01L41/18 ,  H02N2/00

CPC classification number: H01L27/20 ,  B41J2/14209 ,  H01L41/338 ,  H01L41/339 ,  H02N2/021 ,  Y10T29/42 ,  Y10T29/43 ,  Y10T29/435 ,  Y10T29/49078 ,  Y10T29/49126 ,  Y10T29/4913 ,  Y10T29/49833

Abstract: A matrix type piezoelectric/electrostrictive (P/E) actuator includes a plurality of piezoelectric/electrostrictive elements, each including a piezoelectric/electrostrictive body and at least one pair of electrodes formed on a ceramic substrate. The matrix type P/E actuator is activated by the displacement of the piezoelectric/electrostrictive bodies. The piezoelectric/electrostrictive elements are joined to the ceramic substrate as respective unified bodies, and are two-dimensionally arranged independently from each other. The piezoelectric/electrostrictive actuator provides a greater displacement with a lower voltage, a high responsive speed, and a greater generating force, as well as enhancing the mounting ability and the integration. A method for manufacturing such a matrix type P/E actuator is also disclosed.

Abstract translation: 矩阵型压电/电致伸缩（P / E）致动器包括多个压电/电致伸缩元件，每个压电/电致伸缩元件包括压电/电致伸缩体和在陶瓷衬底上形成的至少一对电极。 矩阵型P / E致动器由压电/电致伸缩体的位移激活。 压电/电致伸缩元件作为各自的统一体接合到陶瓷基板，并且彼此独立地二维地排列。 压电/电致伸缩致动器提供具有较低电压，高响应速度和更大发电力的更大位移，以及增强安装能力和集成度。 还公开了一种用于制造这种矩阵型P / E致动器的方法。

公开(公告)号：US20050218851A1

公开(公告)日：2005-10-06

申请号：US10502626

申请日：2002-06-28

Applicant: Kouji Kosaka

Inventor： Kouji Kosaka

IPC: G12B5/00 ,  B25J19/00 ,  G05B19/33 ,  G05D3/00 ,  H01L41/04 ,  H01L41/09

CPC classification number: H02N2/028 ,  H02N2/021 ,  H02N2/06

Abstract: In a feed drive apparatus wherein a moving element 27 is driven by drive legs 21, 22 having extension/contraction deforming parts 23 and shear deforming parts 24, sine wave drive voltages are respectively applied to the extension/contraction deforming parts 23 and shear deforming parts 24 of the drive legs 21, 22 in order to permit high speed operation, and make the average voltage effectively zero.

Abstract translation: 在具有伸缩变形部23和剪切变形部24的驱动支脚21,22驱动移动元件27的进给驱动装置中，将正弦波驱动电压分别施加到延伸/收缩变形部23和剪切变形部 24，以允许高速操作，并使平均电压有效地为零。

公开(公告)号：US20050073219A1

公开(公告)日：2005-04-07

申请号：US10674339

申请日：2003-10-01

Applicant: Stefan Johansson

Inventor： Stefan Johansson

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

CPC classification number: H01L41/0946 ,  H02N2/021 ,  H02N2/026 ,  H02N2/043

Abstract: An electromechanical motor (1) has a driving element (30) comprising two electromechanical sections (32, 34) extended substantially parallel to a driving surface (14) of a body (10) to be moved. The electromechanical sections (32, 34) are rigidly supported by a backbone portion (22) of a stator (20) at a first end (38). An link member (40) having a single actuating portion (42), which by its interaction with the driving surface (14) of the body (10) moves the body (10), is attached between respective second ends (36) of the electromechanical sections (32, 34). The electromechanical sections (32, 34) are excitable in a vibration mode having strokes substantially perpendicular to the direction of motion (12). A portion of the link (40) or the joints (46, 54) between the link member (40) and the electromechanical sections (32, 34) have a bending stiffness in the direction of the strokes that is significantly lower than the bending stiffness of the electromechanical sections (32, 34) themselves.

Abstract translation: 机电马达（1）具有驱动元件（30），该驱动元件（30）包括基本上平行于要移动的主体（10）的驱动表面（14）延伸的两个机电部件（32,34）。 机电部分（32,34）在第一端（38）处由定子（20）的主体部分（22）刚性地支撑。 具有单个致动部分（42）的连杆构件（40）通过其与主体（10）的驱动表面（14）的相互作用移动主体（10），附接在相应的第二端部（36）之间 机电部分（32,34）。 机电部分（32,34）在具有大致垂直于运动方向（12）的冲程的振动模式中是可激发的。 连杆（40）的一部分或连杆构件（40）和机电部件（32,34）之间的接头（46,54）在冲程方向具有明显低于弯曲刚度的弯曲刚度 的机电部分（32,34）本身。

公开(公告)号：US06798117B2

公开(公告)日：2004-09-28

申请号：US10191115

申请日：2002-07-10

Applicant: Stefan Johansson ,  Mats Bexell ,  Anders Jansson

Inventor： Stefan Johansson ,  Mats Bexell ,  Anders Jansson

IPC: H01L4108

CPC classification number: H02N2/021 ,  H02N2/06

Abstract: According to the present invention, electromechanical motors are driven in such a way that contact portions of driving elements (10) are moved along smooth trajectories. The velocity is varied, the average velocity being lower during the time when the element (10) is in contact with a moving object (22) than during the contact free time. Preferably, the main displacement velocity component is non-negligible when switching between sets of elements (10). When stopping the motor, the actuating sets of elements (10) are brought into a voltage-free condition, one set at a time. The contact portions of the elements (10) are lapped with such an accuracy, that the normal force applied between the moving object and the stator (2) is large enough to cause elastic deformations of the stator (2) that are in the same order of magnitude or larger than the accuracy of the lapping.

公开(公告)号：US20040119791A1

公开(公告)日：2004-06-24

申请号：US10679188

申请日：2003-10-03

Applicant: NGK Insulators, Ltd.

Inventor： Yukihisa Takeuchi ,  Hiroyuki Tsuji ,  Kazumasa Kitamura ,  Nobuo Takahashi

IPC: B41J002/045

CPC classification number: B41J2/1609 ,  B41J2/1632 ,  H01L27/20 ,  H01L41/339 ,  H02N2/021

Abstract: This is a method for manufacturing a multislit actuator in which cleaning to drying process is unnecessary, and even slits other than in a linear shape or slits having a width of 50 nullm or less can be formed. A predetermined number of piezoelectric material green sheets 1 are prepared, a first piezoelectric material green sheet 1a is formed with slit apertures by a punch 8 and a die 9 disposed with a stripper 10 therearound. Then the piezoelectric material green sheet 1a is pulled up by the stripper 10 without removing the punch 8 from the piezoelectric material green sheet 1a. Then, a second piezoelectric material green sheet 1b is formed with slit apertures by the punch 8, the punched two piezoelectric material green sheets 1a and 1b are similarly pulled up by the stripper 10 without removing the punch 8 from the piezoelectric material green sheet 1b. After this the piezoelectric material green sheets are laminated at the same time when punched. The operation is repeated for a predetermined number of the sheets, and then they are stacked on a substrate and fired to integrate in a unitary body.

Abstract translation: 这是制造不需要对干燥处理进行清洁的多照明致动器的方法，甚至可以形成除线形以外的狭缝或宽度为50μm以下的狭缝。 制备预定数量的压电材料生片1，第一压电材料生片1a通过冲头8和带有剥离器10的模具9形成有狭缝孔。 然后，压电材料生片1a由剥离器10拉起而不从压电材料生片1a移除冲头8。 然后，第二压电材料生片1b通过冲头8形成有狭缝孔，冲压的两个压电材料生片1a和1b类似地由剥离器10拉起，而不从压电材料生片1b除去冲头8。 此后，压电材料生片在冲压时同时层压。 对于预定数量的纸张重复操作，然后将它们堆叠在基板上并点燃以整合在一体中。

公开(公告)号：US6150750A

公开(公告)日：2000-11-21

申请号：US11133

申请日：1998-02-04

Applicant: Sergey Vyacheslavovich Burov ,  Jury Vladimirovich Okatov

Inventor： Sergey Vyacheslavovich Burov ,  Jury Vladimirovich Okatov

IPC: H02N2/00 ,  H01L41/09 ,  H02K37/00 ,  H02N2/02 ,  H02P8/00 ,  H01L41/08

CPC classification number: H02N2/021

Abstract: A piezoelectric linear stepping motor comprises a cylindrical housing (1), a movable part (4) and fixing devices between them. The fixing devices comprise at least two piezoelectric units (2,3). Each piezoelectric unit (2,3) consists of a shifting (5) and a fixing (6) piezoelectric cells, insulators (7) and a friction element (8). The piezoelectric units (2,3) are disposed inside the housing (1) one behind the other in a longitudinal plane.

Abstract translation: PCT No.PCT / RU97 / 00180 Sec。 371日期：1998年2月4日 102（e）1998年2月4日PCT PCT 1997年6月5日PCT公布。 出版物WO97 / 47075 日期1997年12月11日压电线性步进电动机包括圆柱形壳体（1），可动部分（4）和它们之间的固定装置。 固定装置包括至少两个压电单元（2,3）。 每个压电单元（2,3）由移位（5）和固定（6）压电单元，绝缘体（7）和摩擦元件（8）组成。 压电单元（2,3）在纵向平面内一个在另一个之后设置在壳体（1）内。

公开(公告)号：US5686778A

公开(公告)日：1997-11-11

申请号：US743136

申请日：1996-11-04

Applicant: Taiichiroh Fukuda

Inventor： Taiichiroh Fukuda

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

CPC classification number: H02N2/021 ,  H02N2/101

Abstract: A movement device, which moves an object with high accuracy and with little effect or wear on frictional surfaces. A first pair of piezoelectric elements are fixed to a base such that they expand and contact in a relative movement direction. A second pair of piezoelectric elements are fixed to the base such that they expand and contract in a direction perpendicular to the relative movement direction. A first vibrating body is connected to the first piezoelectric elements. A second vibrating body is positioned such that it does not contact the first vibrating body and moves in a predetermined direction relative to the base when the second vibrating body and the object lose contact. The second vibrating body and the object come in contact, and the first vibrating body and the object lose contact when the vibrating body moves in an opposite direction to the predetermined direction.

Abstract translation: 一种移动装置，其以高精度移动物体，并且在摩擦表面上具有很小的影响或磨损。 第一对压电元件固定在基座上，使得它们在相对运动方向上膨胀和接触。 第二对压电元件固定在基座上，使得它们在垂直于相对运动方向的方向上膨胀和收缩。 第一振动体连接到第一压电元件。 第二振动体被定位成使得当第二振动体和物体失去接触时，第二振动体不接触第一振动体并相对于基部沿预定方向移动。 第二振动体和物体接触，并且当振动体沿与预定方向相反的方向移动时，第一振动体和物体失去接触。

公开(公告)号：US5134335A

公开(公告)日：1992-07-28

申请号：US602923

申请日：1990-10-23

Applicant: Yoshihiro Ikemoto ,  Jiro Kataoka

Inventor： Yoshihiro Ikemoto ,  Jiro Kataoka

IPC: H01L41/09

CPC classification number: H02N2/021

Abstract: A linear actuator has at least one driving unit having a piezoelectric device (11), a yoke (19) fixed on the piezoelectric device (11) and an electromagnet (20, 21) provided on the yoke (19) and a moving member (23) made of magnetic material such as ferrite disposed under the electromagnet (20, 21) with a small gap therebetween; and linear movement of the moving member is produced by repeating expansion and subsequent contraction of the piezoelectric device (11) and simultaneously exciting and subsequent demagnetizing of the electromagnet (20, 21).

Abstract translation: 线性致动器具有至少一个驱动单元，其具有压电装置（11），固定在压电装置（11）上的磁轭（19）和设置在磁轭（19）上的电磁体（20,21）和移动构件 23），其由设置在电磁体（20,21）下方的铁素体的磁性材料制成，其间具有小的间隙; 并且通过重复所述压电装置（11）的膨胀和随后的收缩并且同时使所述电磁体（20,21）的激励和随后的退磁而产生所述移动构件的线性移动。