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    Wide frequency range electromechanical actuator
    1.
    发明申请
    Wide frequency range electromechanical actuator 有权
    宽频率机电执行机构

    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）。

    Wide frequency range electromechanical actuator
    2.
    发明授权
    Wide frequency range electromechanical actuator 有权
    宽频率机电执行机构

    公开(公告)号：US07067958B2

    公开(公告)日：2006-06-27

    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： H02N2/02 ,  H01L41/16

    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）。

    Fine control of electromechanical motors
    3.
    发明授权
    Fine control of electromechanical motors 有权

    公开(公告)号：US06798117B2

    公开(公告)日：2004-09-28

    申请号：US10191115

    申请日：2002-07-10

    申请人： Stefan Johansson ,  Mats Bexell ,  Anders Jansson

    发明人： Stefan Johansson ,  Mats Bexell ,  Anders Jansson

    IPC分类号： H01L4108

    CPC分类号： H02N2/021 ,  H02N2/06

    摘要： 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.

    Near-resonance electromechanical motor
    4.
    发明授权
    Near-resonance electromechanical motor 有权
    近共振机电马达

    公开(公告)号：US06747394B2

    公开(公告)日：2004-06-08

    申请号：US10173766

    申请日：2002-06-19

    申请人： Stefan Johansson ,  Olov Johansson ,  Christer Mattsson ,  Anders Jansson ,  Jonas Eriksson

    发明人： Stefan Johansson ,  Olov Johansson ,  Christer Mattsson ,  Anders Jansson ,  Jonas Eriksson

    IPC分类号： H01L4108

    CPC分类号： H02N2/0015 ,  H01L41/0926 ,  H02N2/0065 ,  H02N2/026

    摘要： An electromechanical motor according to the present invention has a stator with a drive element consisting of two serially connected bending sections and a central drive pad, for actuating on a body to be moved. The drive element extends parallel to the body. The drive pad and/or the body is elastic. Preferably, the drive pad has a lower stiffness than the body. The elasticity of the drive pad allows an assimilation of a part of the travelling wave energy applied to the drive element. The backbone of the stator is arranged to restrict the drive element from being removed from the body, but at the same time allow the drive element to be translated towards the body and even leave the mechanical contact with the backbone for shorter periods of time. Support means are preferably designed with convex surfaces in order to allow self-centering of the different parts of the motor.

    摘要翻译： 根据本发明的机电马达具有定子，其具有由两个串联连接的弯曲部分组成的驱动元件和用于在待移动的主体上致动的中心驱动垫。 驱动元件平行于主体延伸。 驱动垫和/或主体是弹性的。 优选地，驱动垫具有比主体更低的刚度。 驱动垫的弹性允许同时施加到驱动元件的行波能量的一部分。 定子的骨架被布置成限制驱动元件从主体移除，但是同时允许驱动元件朝向主体平移，并且甚至离开与骨架的机械接触更短的时间段。 优选地，支撑装置设计有凸起的表面，以允许电动机的不同部件自对中。

    Energy recovery in electromechanical motors
    5.
    发明授权
    Energy recovery in electromechanical motors 失效

    公开(公告)号：US06563251B2

    公开(公告)日：2003-05-13

    申请号：US09785314

    申请日：2001-02-20

    申请人： Anders Jansson ,  Karl Håkansson ,  Stefan Johansson

    发明人： Anders Jansson ,  Karl Håkansson ,  Stefan Johansson

    IPC分类号： H02N206

    CPC分类号： H02N2/065

    摘要： In a method according to the present invention, charging and discharging of motor phases (10A, 10B) in an electromechanical motor is performed with a small voltage difference between the voltage source and the capacitive load of the motor phase (10A, 10B). This is accomplished by connecting a series of voltage sources (36), one at a time. Energy from the discharging operation is stored to be used in subsequent charging operations. In a device according to the present invention, the voltage sources (36) are preferably provided by means of capacitive or induction voltage step-up or step-down circuits. Preferably, switches (34) control the charging and discharging. In a preferred embodiment, the capacitance of one motor phase (10A) is used for storing charge resulting from the discharge from another motor phase (10B).

    Near-resonance wide-range operating electromechanical motor
    7.
    发明授权
    Near-resonance wide-range operating electromechanical motor 有权
    近共振宽频操作机电马达

    公开(公告)号：US07157830B2

    公开(公告)日：2007-01-02

    申请号：US10404090

    申请日：2003-04-02

    申请人： Anders Jansson ,  Stefan Johansson ,  Olov Johansson ,  Jonas Eriksson

    发明人： Anders Jansson ,  Stefan Johansson ,  Olov Johansson ,  Jonas Eriksson

    IPC分类号： H02N2/00 ,  H01L41/09 ,  H01L41/083

    CPC分类号： H02N2/065 ,  H02N2/0015 ,  H02N2/026

    摘要： The present invention combines bending mode mechanical (frm) and electrical (fre) resonances, whereby a relatively good efficiency can be achieved within a relatively broad frequency range (Δf3). An electrical resonance (frc) or mechanical resonance is designed to be situated in the same order of magnitude as another mechanical resonance (frm), but separated therefrom. Preferably, the separation (Δf2) is smaller than 2f1/Q1, where f1 is the resonance frequency for the resonance having lowest quality value, and Q1 is the corresponding quality value of the mechanical resonance. An electromechanical motor comprising a driving element and electrical resonance circuit according to the above ideas may comprise a double bimorph driving element having one single actuating point influencing a body to be moved. The double bimorph driving element is excited in bending vibrations perpendicular to a main displacement direction, whereby both tangential and perpendicular motions are created by bending mode vibrations.

    摘要翻译： 本发明结合了弯曲模式机械（f 3 ）。 电共振（机械共振）或机械共振被设计为与另一机械共振（f