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公开(公告)号：US08183740B2
公开(公告)日：2012-05-22
申请号：US12639232
申请日：2009-12-16
IPC分类号： H01L41/08
CPC分类号： H02N2/002 , H02N2/0065 , H02N2/103
摘要： A piezoelectric motor (100) includes a stator (2) having a stator shaft (9). The motor also includes an annular piezoelement (4) having upper and lower surfaces and inner and outer rims retained on the stator. The motor further includes an annular wave shell (6) on an outer rim of the piezoelement and a rotor coupled to the stator shaft, where the rotor has a rotor inner circumferential surface (20). The motor additionally includes elastic pushers (8), each having an end coupled to the wave shell and another end extending to and contacting the rotor inner circumferential surface. In the motor, a radius of the outer rim is at least twice the radius of the inner rim and an annular width of the piezoelement is at least twice its thickness.
摘要翻译： 压电马达（100）包括具有定子轴（9）的定子（2）。 马达还包括具有上表面和下表面的环形压电元件（4）以及保持在定子上的内圈和外圈。 电动机还包括在压电元件的外缘上的环形波浪壳（6）和耦合到定子轴的转子，其中转子具有转子内圆周表面（20）。 电动机另外包括弹性推动器（8），每个都具有连接到波浪壳的端部，另一端延伸到转子内周面并接触转子内周面。 在电动机中，外缘的半径至少是内边缘半径的两倍，压电元件的环形宽度至少为其厚度的两倍。
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公开(公告)号：US20110260579A1
公开(公告)日：2011-10-27
申请号：US13094478
申请日：2011-04-26
CPC分类号： H02N2/026 , H01L41/0986 , H02N2/002 , Y10T137/8242
摘要： Tubular linear piezoelectric motor (100, 300), and a method for exciting a tubular piezoelectric resonator (101, 301) used in such motor. The motor is comprised of a resonator (101, 301) formed of a cylindrical tube. The tube has length nL comprised of a piezoelectric material, where L is some length, and n is an even numbered integer, greater than zero. The piezoelectric material of the cylindrical tube is polarized in a radial direction, perpendicular at each point to the interior and exterior surface of the cylindrical tube. The resonator is excited with one signal having a single exciter frequency applied across an inner electrode (102, 302) and one or more first outer electrodes (103, 103a, 103b). The single exciter frequency is selected to move a contact site of one or more annular protrusions along an elliptical path when the resonator is excited. The resonator is disposed within an outer tube (106) and configured so that excitation of the resonator using the first outer electrode(s) produces linear displacement as between the outer tube and the resonator in a first direction. Excitation of a second outer electrode (104, 104a, 104b) produces the linear displacement in a second direction opposite to the first direction.
摘要翻译： 管状线性压电电动机（100,300）以及用于激励用于这种电动机的管状压电谐振器（101,301）的方法。 电动机包括由圆柱形管形成的谐振器（101,301）。 管具有由压电材料组成的长度nL，其中L是一定长度，并且n是大于零的偶数整数。 圆柱形管的压电材料在径向方向上被极化，垂直于圆柱形管的内表面和外表面。 谐振器被激发，其中一个信号具有施加在内部电极（102,302）和一个或多个第一外部电极（103,103a，103b）上的单个激励器频率。 当谐振器被激励时，选择单个激励器频率以沿着椭圆路径移动一个或多个环形突起的接触位置。 谐振器设置在外管（106）内并且被配置为使得使用第一外电极的谐振器的激发沿着第一方向在外管和谐振器之间产生线性位移。 第二外部电极（104,104a，104b）的激励在与第一方向相反的第二方向上产生线性位移。
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3.发明授权Piezoelectric generator of mechanical vibrations, and piezoelectric motors based on the generator 有权机械振动的压电发电机，以及基于发电机的压电电动机公开(公告)号：US07876022B2
公开(公告)日：2011-01-25
申请号：US12463524
申请日：2009-05-11
IPC分类号： H01L41/08
CPC分类号： H02N2/103 , H02N2/002 , H02N2/0065
摘要： A piezoelectric generator includes a piezoelectric ring having upper and lower plane surfaces and a first quality factor (Q-factor), a sound-wave conducting gasket acoustically coupled to the upper plane surface, a metal resonator ring positioned acoustically coupled to the conducting gasket, the metal resonator ring having a second Q-factor substantially greater than the first Q-factor, and at least one bent elastic pusher extending from a periphery of the metal resonator ring. In the generator, an external diameter of the conducting gasket is less than half of an external diameter of the metal resonator ring and the piezoelectric ring, the conducting gasket, and the metal resonator ring are concentrically aligned with respect to a rotational axis.
摘要翻译： 压电发生器包括具有上平面和下平面的压电环和第一品质因子（Q因子），声耦合到上平面的声波传导垫圈，声耦合到导电垫圈的金属谐振环， 所述金属谐振器环具有基本上大于所述第一Q因数的第二Q因子，以及从所述金属谐振器环的周边延伸的至少一个弯曲弹性推动器。 在发电机中，导电垫圈的外径小于金属谐振器环的外径的一半，压电环，导电垫圈和金属谐振器环相对于旋转轴线同心对准。
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公开(公告)号：US20100289362A1
公开(公告)日：2010-11-18
申请号：US12781618
申请日：2010-05-17
CPC分类号： H02K7/08 , F16C23/043 , F16C32/0611
摘要： A piezoelectric ultrasonic suspension in gas for creating a contactless bearing support of a precision instrument and specifically an electromagnetic motor. A gas micro-film of elevated pressure is formed between the adjoining surfaces of a spherical saddle and a spherical trunnion. The spherical trunnion is spaced apart from the spherical surface of a saddle by a gas micro-film when the piezoresonator is excited.
摘要翻译： 一种气体中的压电超声波悬浮液，用于产生精密仪器，特别是电磁马达的非接触轴承支撑。 在球形鞍座和球形耳轴的邻接表面之间形成高压气体微膜。 当压电振荡器被激发时，球形耳轴与气体微膜与鞍座的球形表面间隔开。
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5.发明授权Piezoelectric rotary motor with high rotation speed and bi-directional operation 有权压电式旋转电机，转速高，双向运转公开(公告)号：US08183742B2
公开(公告)日：2012-05-22
申请号：US12873688
申请日：2010-09-01
IPC分类号： H02N2/12
CPC分类号： H02N2/103 , H02N2/002 , H02N2/0065
摘要： Piezoelectric motor that provides high speed and bi-directional operation. A first rotor is disposed about a first shaft, and a second rotor separate from the first rotor is disposed about the first shaft and a second shaft. Each of the rotors and shafts are centered on a common axis. An annular shaped first piezoelement is centered on the axis and fixed to the housing. First and second annular piezoelements are disposed within the first rotor, configured to motivate rotation of the second shaft in a first rotation direction when stimulated with a first exciter voltage. The third and fourth piezoelement are disposed within the second rotor, configured to motivate rotation of the second shaft in a second direction (opposed from the first direction) when stimulated with an exciter voltage.
摘要翻译： 压电马达提供高速和双向的操作。 第一转子围绕第一轴设置，并且与第一转子分开的第二转子围绕第一轴和第二轴设置。 每个转子和轴都在公共轴上居中。 环形的第一压电元件以轴线为中心并固定到壳体。 第一和第二环形压电元件设置在第一转子内，构造成当用第一激励器电压被刺激时，使第二轴在第一旋转方向上的旋转。 第三和第四压电元件设置在第二转子内，被配置成当用激励器电压激励时，使第二轴在第二方向（与第一方向相反）上激发旋转。
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6.发明申请ELECTRIC MOTORS AND GENERATORS WITH OPPOSING NON-CONTACT PIEZOELECTRIC BEARING SUPPORTS 审中-公开具有非接触式压电轴承支持的电动机和发电机公开(公告)号：US20120049679A1
公开(公告)日：2012-03-01
申请号：US13222866
申请日：2011-08-31
CPC分类号： F16C32/0603 , F16C17/10 , H02K7/08
摘要： Electric motors and generators, in which a non-contact ultrasonic suspension of the rotor of the electric motor, are provided. The non-contact ultrasonic suspension is achieved by the formation of an elevated-pressure gaseous microfilm between conjugated surfaces of saddle-resonators and trunnions of a bearing system.
摘要翻译： 设置有电动机的转子的非接触式超声波悬架的电动马达和发电机。 非接触超声波悬浮液通过在鞍形谐振器的共轭表面和轴承系统的耳轴之间形成高压气态微缩胶片来实现。
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公开(公告)号：US20100148102A1
公开(公告)日：2010-06-17
申请号：US12701704
申请日：2010-02-08
IPC分类号： F16K31/02
CPC分类号： H02N2/002 , H02N2/0065 , H02N2/103
摘要： A piezoelectric valve is provided that includes a valve body includes a plug and a drive body coupled to the valve body and operable to cause the rotatable plug to rotate about a rotational axis. The drive body includes a shaft disposed along the axis, the shaft statically coupled to the plug and rotatably coupled to the drive body. The drive body also includes a rotor assembly disposed about the axis and rotatably coupled to the drive body. The drive body further includes a first piezoelectric actuator disposed about the axis and statically coupled to the drive body, the first piezoelectric actuator configured to frictionally engage an inner surface of the rotor assembly. The drive body additionally includes a second piezoelectric actuator disposed about the axis and statically coupled to the shaft, the second piezoelectric actuator configured to frictionally engage the inner surface of the rotor assembly.
摘要翻译： 提供了一种压电阀，其包括阀体，该阀体包括塞子和与阀体联接的驱动体，并可操作以使旋转塞绕旋转轴旋转。 驱动体包括沿轴线设置的轴，该轴静止地联接到插头并可旋转地联接到驱动体。 驱动体还包括围绕轴线设置并且可旋转地联接到驱动体的转子组件。 所述驱动体还包括围绕所述轴设置且静态地联接到所述驱动体的第一压电致动器，所述第一压电致动器被配置为摩擦地接合所述转子组件的内表面。 所述驱动体还包括围绕所述轴设置并且静态地联接到所述轴的第二压电致动器，所述第二压电致动器被配置为摩擦地接合所述转子组件的内表面。
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公开(公告)号：US08183744B2
公开(公告)日：2012-05-22
申请号：US12639172
申请日：2009-12-16
IPC分类号： H01L41/047 , H02N2/04
CPC分类号： H01L41/0913 , H02N2/103
摘要： A piezoelectric motor includes a piezoresonator body (3) having opposing front and back surfaces and opposing first and second end surfaces. The front (17) and the back (18) surfaces are substantially parallel to first (15) and second (16) longitudinal axes of the piezoresonator body. The end surfaces (2) are substantially perpendicular to the first longitudinal axis and substantially parallel to the second longitudinal axis and are separated by a length (L) of the piezoresonator body. The motor also includes at least one common electrode (6) disposed on the back surface and at least 6n excitation electrodes (7-12) disposed across the front surface in two symmetric rows extending along L, where n is an integer ≧1. In the motor, the piezoelectric body has an nth order longitudinal vibration frequency (ν1) along L and a 3nth order bending vibration frequency (ν2) along L, and where ν1 and ν2 are substantially equal.
摘要翻译： 压电电动机包括具有相对的前后表面和相对的第一和第二端表面的压电谐振器体（3）。 前部（17）和后部（18）表面基本上平行于压电振动器主体的第一（15）和第二（16）纵向轴线。 端面（2）基本上垂直于第一纵向轴线并且基本上平行于第二纵向轴线并且被压电体主体的长度（L）分开。 电动机还包括设置在背面上的至少一个公共电极（6）和沿着L延伸的两个对称行横跨前表面设置的至少6n个激励电极（7-12），其中n是整数≥1。 在电动机中，压电体沿着L具有第n阶纵向振动频率（＆ngr; 1），沿着L具有3阶弯曲振动频率（＆ngr; 2），并且其中＆ngr1和＆ngr2相等。
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公开(公告)号：US08183743B2
公开(公告)日：2012-05-22
申请号：US13094478
申请日：2011-04-26
IPC分类号： H01L41/00
CPC分类号： H02N2/026 , H01L41/0986 , H02N2/002 , Y10T137/8242
摘要： Tubular linear piezoelectric motor (100, 300), and a method for exciting a tubular piezoelectric resonator (101, 301) used in such motor. The motor is comprised of a resonator (101, 301) formed of a cylindrical tube. The tube has length nL comprised of a piezoelectric material, where L is some length, and n is an even numbered integer, greater than zero. The piezoelectric material of the cylindrical tube is polarized in a radial direction, perpendicular at each point to the interior and exterior surface of the cylindrical tube. The resonator is excited with one signal having a single exciter frequency applied across an inner electrode (102, 302) and one or more first outer electrodes (103, 103a, 103b). The single exciter frequency is selected to move a contact site of one or more annular protrusions along an elliptical path when the resonator is excited. The resonator is disposed within an outer tube (106) and configured so that excitation of the resonator using the first outer electrode(s) produces linear displacement as between the outer tube and the resonator in a first direction. Excitation of a second outer electrode (104, 104a, 104b) produces the linear displacement in a second direction opposite to the first direction.
摘要翻译： 管状线性压电电动机（100,300）以及用于激励用于这种电动机的管状压电谐振器（101,301）的方法。 电动机包括由圆柱形管形成的谐振器（101,301）。 管具有由压电材料组成的长度nL，其中L是一定长度，并且n是大于零的偶数整数。 圆柱形管的压电材料在径向方向上被极化，垂直于圆柱形管的内表面和外表面。 谐振器被激发，其中一个信号具有施加在内部电极（102,302）和一个或多个第一外部电极（103,103a，103b）上的单个激励器频率。 当谐振器被激励时，选择单个激励器频率以沿着椭圆路径移动一个或多个环形突起的接触位置。 谐振器设置在外管（106）内并且被配置为使得使用第一外电极的谐振器的激发沿着第一方向在外管和谐振器之间产生线性位移。 第二外部电极（104,104a，104b）的激励在与第一方向相反的第二方向上产生线性位移。
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公开(公告)号：US08183741B2
公开(公告)日：2012-05-22
申请号：US12701704
申请日：2010-02-08
CPC分类号： H02N2/002 , H02N2/0065 , H02N2/103
摘要： A piezoelectric valve is provided that includes a valve body includes a plug and a drive body coupled to the valve body and operable to cause the rotatable plug to rotate about a rotational axis. The drive body includes a shaft disposed along the axis, the shaft statically coupled to the plug and rotatably coupled to the drive body. The drive body also includes a rotor assembly disposed about the axis and rotatably coupled to the drive body. The drive body further includes a first piezoelectric actuator disposed about the axis and statically coupled to the drive body, the first piezoelectric actuator configured to frictionally engage an inner surface of the rotor assembly. The drive body additionally includes a second piezoelectric actuator disposed about the axis and statically coupled to the shaft, the second piezoelectric actuator configured to frictionally engage the inner surface of the rotor assembly.
摘要翻译： 提供了一种压电阀，其包括阀体，该阀体包括塞子和与阀体联接的驱动体，并可操作以使旋转塞绕旋转轴旋转。 驱动体包括沿轴线设置的轴，该轴静止地联接到插头并可旋转地联接到驱动体。 驱动体还包括围绕轴线设置并且可旋转地联接到驱动体的转子组件。 所述驱动体还包括围绕所述轴设置且静态地联接到所述驱动体的第一压电致动器，所述第一压电致动器被配置为摩擦地接合所述转子组件的内表面。 所述驱动体还包括围绕所述轴设置并且静态地联接到所述轴的第二压电致动器，所述第二压电致动器被配置为摩擦地接合所述转子组件的内表面。
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