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公开(公告)号：US06455983B2
公开(公告)日：2002-09-24
申请号：US09291555
申请日：1999-04-14
IPC分类号： H02N200
CPC分类号： H02N2/0055 , H01L41/0913 , H02N2/103
摘要： The invention relates to a motor having a cuboid piezoelectric element (1) which carries an actuating member (2) for transmitting a force in an actuating direction (x). In known motors the piezoelectric element (1) is restrained by four restraining elements which are disposed in the plane of vibration (x/y plane) and which exert a preloading force on the piezoelectric element (1) in a direction perpendicular to the actuating direction (x). However, this gives rise to a frictional force between the restraining elements and the piezoelectric element, which reduces the vibration quality and, as a consequence, the motor power. This is avoided by means of the invention, where the piezoelectric element (1) is restrained by means of restraining elements (20, 21, 22, 23) without preloading, i.e. with maximal slidability in the directions (y, z) perpendicular to the actuating direction (x). Preferably, such a motor is used in drive apparatuses, particularly for driving the read/write unit on a pivotable arm or on a translatable slide.
摘要翻译： 本发明涉及一种具有立方体压电元件（1）的电动机，其承载用于在致动方向（x）上传递力的致动构件（2）。 在已知的电动机中，压电元件（1）被设置在振动平面（x / y平面）中的四个限制元件约束，并且在垂直于致动方向的方向上在压电元件（1）上施加预加载力 （X）。 然而，这导致约束元件和压电元件之间的摩擦力，这降低了振动质量，结果是电动机功率。 这是通过本发明避免的，其中压电元件（1）通过约束元件（20,21,22,23）被约束而不预加载，即在垂直于该方向的方向（y，z）上具有最大滑动性 致动方向（x）。 优选地，这样的电动机用于驱动装置中，特别是用于在可枢转臂或可平移滑动件上驱动读/写单元。
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公开(公告)号：US07518285B2
公开(公告)日：2009-04-14
申请号：US10512119
申请日：2003-04-17
IPC分类号： H01L41/09
CPC分类号： H02N2/142
摘要： A starting-process controller for starting a piezomotor, having a voltage-controlled oscillator, a power output stage, and a resonant converter. The oscillator generates the control signals required for the power output stage and the resonance converter converts the stepped output voltage from the power output stage into a sinusoidal voltage at the output. The resonance converter drives the piezomotor with the voltage. The motor current that flows when the piezomotor is driven is measured and compared with the phase of the drive voltage in a phase comparator. The comparison output signal is a measure of the phase difference at the time between current and voltage. A phase-locked loop filter smoothes the phase-difference signal for controling the oscillator. The controller includes a start-assisting circuit element that fixes the output voltage from the phase-locked loop filter at start-up and thus applies a constant voltage to the input of the voltage-controlled oscillator.
摘要翻译： 用于启动具有压控振荡器，功率输出级和谐振转换器的压电机的启动过程控制器。 振荡器产生功率输出级所需的控制信号，并且谐振变换器将来自功率输出级的阶梯式输出电压转换为输出端的正弦电压。 谐振转换器用电压驱动压电电动机。 在驱动压电电动机时流动的电动机电流被测量并与相位比较器中的驱动电压的相位进行比较。 比较输出信号是电流和电压之间相位差的度量。 锁相环滤波器平滑用于控制振荡器的相位差信号。 控制器包括启动辅助电路元件，其在启动时固定来自锁相环滤波器的输出电压，从而对压控振荡器的输入端施加恒定电压。
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3.发明申请Piezoelectric driving device and a regulation method for a piezoelectric driving device 失效压电驱动装置和压电驱动装置的调节方法公开(公告)号：US20060267452A1
公开(公告)日：2006-11-30
申请号：US10303980
申请日：2002-11-25
IPC分类号： H01L41/09
CPC分类号： B26B19/282 , B26B19/38 , B26B19/3873 , B26B19/388 , H02N2/0075
摘要： A piezoelectric driving device and a regulation method for a piezoelectric driving device are proposed. Piezoelectric driving devices known so far show a characteristic with which the electric power applied to the motor drops when the load increases. This behavior, which leads to a strong reduction of the range of use of such motors, is counteracted by predefining the amplitude of the excitation voltage so that the effective power does not drop with increasing load. For this purpose the electrical effective power is determined from the excitation voltage and the current flowing through the piezoelectric resonator. Alternatively, with a predefined fixed phase angle between excitation voltage and current a regulation may also be effected in the way that the current is kept to the constant value. A further aspect of the invention relates to a unit for limiting the current flowing through the piezoelectric resonator, so as to avoid this component being damaged.
摘要翻译： 提出了一种用于压电驱动装置的压电驱动装置和调节方法。 迄今为止已知的压电驱动装置显示了当负载增加时施加到电动机的电力下降的特性。 导致这种电动机的使用范围大大降低的这种行为通过预先确定激励电压的幅度来抵消，使得有效功率不随着负载的增加而下降。 为此，根据激发电压和流过压电谐振器的电流来确定电有效功率。 或者，利用激励电压和电流之间的预定义的固定相位角，也可以以电流保持恒定值的方式实现调节。 本发明的另一方面涉及一种用于限制流过压电谐振器的电流的单元，以避免该部件被损坏。
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公开(公告)号：US20050281546A1
公开(公告)日：2005-12-22
申请号：US10512119
申请日：2003-04-17
CPC分类号： H02N2/142
摘要： The invention relates to a starting-process controller for starting a piezomotor (4), having a voltage-controlled oscillator (1)(VCO), a power output stage (2), and a resonant converter (3), wherein the oscillator (VCO) generates the control signals required for the power output stage (2), and the resonance converter (3) converts the stepped output voltage from the power output stage (2) into a sinusoidal voltage at the output of the resonance converter (3), with which voltage the resonance converter (3) drives the piezomotor (4). The motor current that flows when the piezomotor (4) is driven is measured and compared with the phase of the drive voltage in a phase comparator (6). The output signal from the phase comparator (6) then is a measure for the phase difference at the time between current and voltage. A phase-locked loop filter (8) smoothes the phase-difference signal, which in turn controls the oscillator (1)(VCO). This starting-process controller (11) comprises a start-assisting circuit element (10) that fixes the output voltage from the phase-locked loop filter (8) at start-up and thus applies a constant voltage to the input of the voltage-controlled oscillator (1)(VCO).
摘要翻译： 本发明涉及一种用于启动具有压控振荡器（VCO），功率输出级（2）和谐振变换器（3）的压电机（4）的启动过程控制器，其中振荡器 VCO）产生功率输出级（2）所需的控制信号，并且谐振转换器（3）将来自功率输出级（2）的阶梯式输出电压转换成谐振转换器（3）输出端的正弦电压， 谐振转换器（3）驱动压电电动机（4）的电压。 在驱动压电电动机（4）时流动的电动机电流被测量并与相位比较器（6）中的驱动电压的相位进行比较。 然后，来自相位比较器（6）的输出信号是电流和电压之间的相位差的度量。 锁相环滤波器（8）对相位差信号进行平滑，相位差信号又控制振荡器（1）（VCO）。 该启动处理控制器（11）包括起动辅助电路元件（10），其在启动时固定来自锁相环路滤波器（8）的输出电压，并且因此向电压 - 受控振荡器（1）（VCO）。
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公开(公告)号：US06563253B2
公开(公告)日：2003-05-13
申请号：US09796968
申请日：2001-03-01
IPC分类号： H02M200
CPC分类号： B26B19/282 , H02N2/002 , H02N2/006 , H02N2/103
摘要： The invention relates to a piezoelectric actuator (1) for driving a movable part (2), for example a rotor, having an elongate piezoelectric resonator (3), which serves to perform longitudinal vibrations and which is acted upon by elastic means (10), for example a spring (10). The elastic means (10) acts upon the piezoelectric resonator (3) mainly in the longitudinal direction (11) and serves to exert a force on the resonator (3) in a direction towards the movable part (2), the resonant frequency of the elastic means (10) being substantially smaller than the resonant frequency of the piezoelectric resonator (3), and the piezoelectric resonator (3) is guided by at least one guide element (4, 5) in a direction perpendicular to its longitudinal direction (11). This enables the resonator (3) to vibrate as freely as possible, which leads to a higher efficiency.
摘要翻译： 本发明涉及用于驱动具有细长压电谐振器（3）的可移动部件（2）（例如转子）的压电致动器（1），其用于执行纵向振动并且由弹性装置（10）作用， ，例如弹簧（10）。 弹性装置（10）主要在纵向（11）上作用在压电谐振器（3）上，用于在朝向可动部分（2）的方向上在谐振器（3）上施加力， 弹性装置（10）基本上小于压电谐振器（3）的谐振频率，并且压电谐振器（3）在垂直于其纵向（11）的方向上由至少一个引导元件（4,5）引导 ）。 这使得谐振器（3）能够尽可能自由地振动，这导致更高的效率。
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6.发明授权Piezoelectric driving device and a regulation method for a piezoelectric driving device 失效压电驱动装置和压电驱动装置的调节方法公开(公告)号：US07352108B2
公开(公告)日：2008-04-01
申请号：US10303980
申请日：2002-11-25
IPC分类号： H01L41/08
CPC分类号： B26B19/282 , B26B19/38 , B26B19/3873 , B26B19/388 , H02N2/0075
摘要： A piezoelectric driving device and a regulation method for a piezoelectric driving device are proposed. Piezoelectric driving devices known so far show a characteristic with which the electric power applied to the motor drops when the load increases. This behavior, which leads to a strong reduction of the range of use of such motors, is counteracted by predefining the amplitude of the excitation voltage so that the effective power does not drop with increasing load. For this purpose the electrical effective power is determined from the excitation voltage and the current flowing through the piezoelectric resonator. Alternatively, with a predefined fixed phase angle between excitation voltage and current a regulation may also be effected in the way that the current is kept to the constant value. A further aspect of the invention relates to a unit for limiting the current flowing through the piezoelectric resonator, so as to avoid this component being damaged.
摘要翻译： 提出了一种用于压电驱动装置的压电驱动装置和调节方法。 迄今为止已知的压电驱动装置显示了当负载增加时施加到电动机的电力下降的特性。 导致这种电动机的使用范围大大降低的这种行为通过预先确定激励电压的幅度来抵消，使得有效功率不随着负载的增加而下降。 为此，根据激发电压和流过压电谐振器的电流来确定电有效功率。 或者，利用激励电压和电流之间的预定义的固定相位角，也可以以电流保持恒定值的方式实现调节。 本发明的另一方面涉及一种用于限制流过压电谐振器的电流的单元，以避免该部件被损坏。
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7.发明授权Driving device for at least two rotation elements, which device comprises at least one piezoelectric driving element 失效用于至少两个旋转元件的驱动装置，该装置包括至少一个压电驱动元件
公开(公告)号：US6121717A
公开(公告)日：2000-09-19
申请号：US201045
申请日：1998-11-30
CPC分类号： B26B19/28 , H01L41/0913 , H02N2/0015 , H02N2/002 , H02N2/004 , H02N2/0055 , H02N2/103
摘要： The invention relates to a driving device for at least two rotation elements, which device comprises at least one piezoelectric driving element. The object of the invention is to provide such a driving device having a high efficiency and allowing a more flexible positioning of the rotation elements.The invention is characterized in that the piezoelectric driving element comprises a piezoelectric resonator and at least two friction elements arranged on the piezoelectric resonator and disposed opposite one another, the piezoelectric resonator with the friction elements is arranged between the two rotation elements and is restrained by means of a pre-loading force, each one of the friction elements acts upon one of the rotation elements, and electrical means for the excitation of a vibration mode of the piezoelectric resonator have been provided.
摘要翻译： 本发明涉及一种用于至少两个旋转元件的驱动装置，该装置包括至少一个压电驱动元件。 本发明的目的是提供一种高效率的驱动装置，并允许旋转元件的更灵活的定位。 本发明的特征在于，压电驱动元件包括压电谐振器和布置在压电谐振器上的至少两个摩擦元件并且彼此相对布置，具有摩擦元件的压电谐振器被布置在两个旋转元件之间并且被装置 预加载力中的每一个摩擦元件作用于其中一个旋转元件，并且已经提供了用于激发压电谐振器的振动模式的电气装置。
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公开(公告)号：US4486697A
公开(公告)日：1984-12-04
申请号：US496703
申请日：1983-05-20
申请人： Gerhard Diefenbach , Erich Krainer
发明人： Gerhard Diefenbach , Erich Krainer
摘要： A reversing device for a two-pole single-phase synchronous motor (3) without a starting coil. The motor comprises a diametrically magnetized permanent-magnet rotor having a shaft that runs against elastic stops for reversing the direction of rotation, and a capacitor arranged in series with the stator exciter coil. The capacitor serves for improving the reversing operation and is dimensioned so that its reactance at the AC supply frequency is greater than the reactance of the exciter coil of the synchronous motor.
摘要翻译： 用于没有启动线圈的双极单相同步电动机（3）的换向装置。 电动机包括一个直径磁化的永磁转子，该转子具有一个抵靠弹性止动件抵靠旋转方向的轴，以及与定子励磁线圈串联设置的电容器。 该电容器用于改善反向操作，其尺寸使其在交流电源频率下的电抗大于同步电动机的励磁线圈的电抗。
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公开(公告)号：US4868435A
公开(公告)日：1989-09-19
申请号：US047603
申请日：1987-05-07
CPC分类号： B26B19/282 , Y10T74/18288
摘要： An electrically driven vibrating apparatus such as a dry shaver comprises a single-phase synchronous motor having a drive shaft, together with a part to be reciprocated. A cam is rotated by the motor drive shaft, and a lever is journalled about a pivot and is in contact with the part to be reciprocated. A pressure roller is mounted on the lever and is in constant contact with the cam profile. A compression spring acts on the lever to urge the pressure roller towards the cam.
摘要翻译： 电动振动装置如干式剃须刀包括具有驱动轴的单相同步电动机以及要往复运动的部件。 凸轮由电动机驱动轴旋转，并且杠杆围绕枢轴枢轴转动并与要往复运动的部件接触。 压力辊安装在杠杆上并与凸轮轮廓保持恒定的接触。 压缩弹簧作用在杠杆上以将压力辊推向凸轮。
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公开(公告)号：US4520286A
公开(公告)日：1985-05-28
申请号：US505018
申请日：1983-06-16
IPC分类号： H02P1/46 , A47J19/00 , A47J19/02 , H02K7/00 , H02K7/06 , H02K7/118 , H02K19/06 , H02P3/18 , H02K33/10 , H02K7/10
CPC分类号： A47J19/02 , H02K7/00 , H02K7/1185
摘要： An electrically driven appliance such as a citrus press comprises a drivable tool; a self-starting single-phase synchronous motor including a diametrically magnetized permanent-magnet rotor forming a rotor field and positioned between two stator poles forming a stator field; and a drive mechanism arranged between the motor and the tool, for driving the latter, such mechanism including a plurality of drive elements each engaging the adjacent element or elements. A stalling device coacts with one drive element having a pair of stops, the stalling device including a member alternately engageable with such stops after a specific number of revolutions of the rotor in either direction of rotation, such engagement effecting stalling of the rotor and automatic reversal of the direction of the rotation of the rotor. The physical relationship of the stalling device member and the stops to each other is such that the rotor is stalled in positions wherein the angle between the rotor-field vector intersecting the rotor axis and a line intersecting the rotor axis perpendicularly to the stator field lies within an angular range of 60.degree. in each direction of rotation of the rotor.
摘要翻译： 诸如柑橘压榨机的电驱动设备包括可驱动的工具; 一个自启动单相同步电动机，其包括形成转子磁场的直径磁化永磁转子，并定位在形成定子磁场的两个定子极之间; 以及布置在马达和工具之间的驱动机构，用于驱动马达和驱动机构，这种机构包括多个驱动元件，每个驱动元件与相邻的元件接合。 失速装置与具有一对止动件的一个驱动元件共同作用，所述失速装置包括在所述转子的任一方向上转动特定转数之后与所述止动件交替地接合的构件，所述接合会影响转子的停止和自动反转 的转子的旋转方向。 失速装置构件和止挡件的物理关系使得转子停止在与转子轴线相交的转子 - 场向量与垂直于定子磁场的转子轴相交的线之间的角位于其中的位置 在转子的每个旋转方向上的角度范围为60°。
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