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1. 发明授权

US11336208B2 Actuator 有权
公开(公告)号：US11336208B2
公开(公告)日：2022-05-17
申请号：US16321212
申请日：2017-07-26
申请人： Physik Instrumente (PI) GmbH & Co. KG
发明人： Burhanettin Koc , Bülent Delibas
IPC分类号： H02N2/00 , H01L41/047 , H02N2/10 , H01L41/09 , H01L41/083
摘要： An actuator with a rectangular shape] is made of polarized electromechanical material having two large main surfaces and at least four side surfaces, two of which being longer than the other two side surfaces. At least one friction element is arranged on at least one of the shorter side surfaces. At least two active electrodes are arranged on one of the main surfaces, with one common electrode arranged on the other of the main surfaces The electromechanical material of the actuator is excitable to perform standing wave deformations due to an electric field generated therein for moving the friction element to drive an element. The actuator aspect ratio for its length to its thickness is between 3.9 and 4.1 and an aspect ratio for the length relative to width is between 2 and 5.

2. 发明授权

US11637508B2 Linear drive for precision positioning 有权
公开(公告)号：US11637508B2
公开(公告)日：2023-04-25
申请号：US17284711
申请日：2019-10-16
申请人： Physik Instrumente (PI) GmbH & Co. KG
发明人： Burhanettin Koc
IPC分类号： H02N2/02 , H02N2/04
摘要： The present disclosure relates to a linear drive, including: an actuator unit with at least one actuator; two guide elements and a movement element, wherein the movement element is displaceable along both guide elements by a movement generated by the actuator unit as a result of a stick-slip effect. In order to allow a more accurate displacement of the movement element in a compact design of the linear drive, the movement element can be brought into engagement with each of the two guide elements by static friction in order to be displaced along the two guide elements as a result of the stick-slip effect.

3. 发明授权

US11218089B2 Rotary motor with ultrasonic actuator 有权
公开(公告)号：US11218089B2
公开(公告)日：2022-01-04
申请号：US16627021
申请日：2018-06-22
申请人： PHYSIK INSTRUMENTE (PI) GMBH & CO. KG
发明人： Burhanettin Koc , Thomas Polzer
IPC分类号： H02N2/00 , H02N2/10 , H02N2/12
摘要： A rotary ultrasonic motor includes an ultrasonic actuator, a driven element, an inner casing member and an outer casing member. A piezoelectric or electrostrictive or magnetostrictive material is arranged between an excitation electrode and at least one general electrode. The ultrasonic actuator is between the inner and outer casing members of a casing, and is directly or indirectly in contact with the element to be driven, so that periodic deformations generated in the ultrasonic actuator by electrical excitation are transferable to the drive element. The ultrasonic actuator is mounted by a retaining device arranged on the casing with at least one retaining section which engages in a recess associated with a respective retaining section.

4. 发明授权

US10177686B2 Piezoelectric motor 有权
公开(公告)号：US10177686B2
公开(公告)日：2019-01-08
申请号：US15141970
申请日：2016-04-29
申请人： Physik Instrumente (PI) GmbH & Co. KG
发明人： Burhanettin Koc
IPC分类号： H02N2/02 , H02N2/00 , H02N2/10
摘要： A piezoelectric motor includes at least two piezoelectric actuators. Each actuator includes two piezoelectric elements on opposite sides of a coupling element, the sides being main sides of the piezoelectric actuators and having a larger area than other surfaces or sides of the piezoelectric actuators. The main surfaces of each of the piezoelectric actuators connect with at least four side surfaces of the piezoelectric actuator. The motor includes an elastic element coupled to and spacing the first and second piezoelectric actuators from each other and there is also a frictional element that couples the first and second piezoelectric actuators for frictional contact for driving an object. The first and the second piezoelectric actuators are adapted to deform in a direction that is substantially perpendicular to a plane defined by the side surface to which the elastic element is attached using a longitudinal piezoelectric effect of the piezoelectric elements.

5. 发明授权

US11545609B2 Electromechanical actuator, method for electrical excitation of an electromechanical actuator and ultrasonic motor 有权
公开(公告)号：US11545609B2
公开(公告)日：2023-01-03
申请号：US16772853
申请日：2018-12-14
申请人： PHYSIK INSTRUMENTE (PI) GMBH & CO. KG
发明人： Burhanettin Koc , Bülent Delibas
IPC分类号： H01L41/09 , H01L41/187 , H02N2/00
摘要： Disclosed is electromechanical actuator for ultrasonic motor in the shape of an n-sided regular polygon plate with n being equal to or greater than five. The polygon plate has two larger main surfaces and at least five smaller side surfaces connecting the main surfaces with each other. Two electrodes are arranged on one of the main surfaces and are electrically isolated from each other by a linear isolation area. One electrode is arranged on the other of the main surfaces. The polygon plate comprises an electromechanical material that undergoes a deformation when electric voltage is applied to the electrodes. The material of the electromechanical actuator comprises a single or polycrystalline piezoelectric ceramic with piezoelectric charge constant d31 differing from piezoelectric charge constant d32 both in sign and in value. The piezoelectric charge constants d31 and d32 define a first and second main deformation direction of the actuator perpendicular to each other. The orientation of the linear isolation area is parallel to either deformation direction.

6. 发明申请

US20160329835A1 Piezoelectric Motor 审中-公开
标题翻译：压电电机
公开(公告)号：US20160329835A1
公开(公告)日：2016-11-10
申请号：US15141970
申请日：2016-04-29
申请人： Physik Instrumente (PI) GmbH & Co. KG
发明人： Burhanettin Koc
IPC分类号： H02N2/00
CPC分类号： H02N2/0025 , H02N2/026 , H02N2/103
摘要： A piezoelectric motor includes at least two piezoelectric actuators. Each actuator includes two piezoelectric elements on opposite sides of a coupling element, the sides being main sides of the piezoelectric actuators and having a larger area than other surfaces or sides of the piezoelectric actuators. The main surfaces of each of the piezoelectric actuators connect with at least four side surfaces of the piezoelectric actuator. The motor includes an elastic element coupled to and spacing the first and second piezoelectric actuators from each other and there is also a frictional element that couples the first and second piezoelectric actuators for frictional contact for driving an object. The first and the second piezoelectric actuators are adapted to deform in a direction that is substantially perpendicular to a plane defined by the side surface to which the elastic element is attached using a longitudinal piezoelectric effect of the piezoelectric elements.
摘要翻译：压电电动机包括至少两个压电致动器。每个致动器在耦合元件的相对侧上包括两个压电元件，这些侧面是压电致动器的主侧面，并且具有比压电致动器的其它表面或侧面更大的面积。每个压电致动器的主表面与压电致动器的至少四个侧表面连接。电动机包括耦合到第一和第二压电致动器并将第一和第二压电致动器彼此间隔开的弹性元件，并且还存在摩擦元件，其联接第一和第二压电致动器用于摩擦接触以驱动物体。第一和第二压电致动器适于使用压电元件的纵向压电效应在基本上垂直于由附接弹性元件的侧表面限定的平面的方向上变形。

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