公开(公告)号：US06177754B1

公开(公告)日：2001-01-23

申请号：US09219996

申请日：1998-12-23

申请人： Makoto Suzuki ,  Akihiro Iino ,  Masao Kasuga ,  Kenji Suzuki ,  Takashi Yamanaka

发明人： Makoto Suzuki ,  Akihiro Iino ,  Masao Kasuga ,  Kenji Suzuki ,  Takashi Yamanaka

IPC分类号： H01L4104

CPC分类号： H02N2/163

摘要： An ultrasonic motor has a piezoelectric element having an electrode pattern and driven by a voltage signal to undergo expansion and compression. An oscillator is connected to the piezoelectric element and is vibrationally driven by the expansion and compression movement of the piezoelectric vibrator. A rotor is disposed on the oscillator to be frictionally driven by expansion and compression movement of the piezoelectric element. A pivot member is connected to a central portion of the rotor. A pressing member is in pressure contact with the pivot member for urging the rotor into pressure contact with the oscillator. The pressing member and the pivot member are comprised of different materials, and the material of the pivot member has a hardness greater than that of the pressing member.

摘要翻译： 超声波马达具有具有电极图案并由电压信号驱动的压电元件进行膨胀和压缩。 振荡器连接到压电元件，并通过压电振动器的膨胀和压缩运动振动驱动。 转子设置在振荡器上，以通过压电元件的膨胀和压缩运动来摩擦驱动。 枢转构件连接到转子的中心部分。 压紧构件与枢转构件压力接触，用于促使转子与振荡器压力接触。 按压构件和枢转构件由不同的材料构成，并且枢转构件的材料的硬度大于按压构件的硬度。

公开(公告)号：US5780955A

公开(公告)日：1998-07-14

申请号：US723114

申请日：1996-09-30

申请人： Akihiro Iino ,  Masao Kasuga ,  Makoto Suzuki ,  Kenji Suzuki ,  Tomosumi Saruwatari

发明人： Akihiro Iino ,  Masao Kasuga ,  Makoto Suzuki ,  Kenji Suzuki ,  Tomosumi Saruwatari

IPC分类号： H02N2/00 ,  H01L41/04 ,  H02N2/12 ,  H02N2/14 ,  H01L41/08

CPC分类号： H02N2/166 ,  H02N2/145

摘要： An ultrasonic motor device comprises a vibrating member, a moving member movably disposed on the vibrating member and driven by vibration of the vibrating member, and a pressure regulating member for urging the moving member into pressure contact with the vibrating member. A self-excited vibration circuit has a piezo-electric element having a first surface supporting at least one group of electrodes and a second surface supporting the vibrating member to be vibrationally driven by the piezo-electric element, an amplifying circuit for receiving a voltage generated on the second surface of the piezo-electric element and amplifying the received voltage to a predetermined voltage level, and a boosting circuit for boosting an output voltage of the amplifying circuit and applying the boosted output voltage to the group of electrodes of the piezo-electric element to vibrationally drive the vibrating member.

摘要翻译： 一种超声波马达装置，包括振动部件，可移动地设置在所述振动部件上并由所述振动部件的振动驱动的移动部件，以及用于使所述移动部件与所述振动部件压力接触的压力限制部件。 自激振动电路具有压电元件，其具有支撑至少一组电极的第一表面和支撑振动元件的第二表面以由压电元件振动驱动;放大电路，用于接收产生的电压 在压电元件的第二表面上并将接收电压放大到预定的电压电平;以及升压电路，用于升压放大电路的输出电压，并将升压的输出电压施加到压电电极组 元件以振动地驱动振动构件。

公开(公告)号：US06404103B1

公开(公告)日：2002-06-11

申请号：US09703148

申请日：2000-10-31

申请人： Kenji Suzuki ,  Masao Kasuga ,  Akihiro Iino ,  Takayuki Kosaka

发明人： Kenji Suzuki ,  Masao Kasuga ,  Akihiro Iino ,  Takayuki Kosaka

IPC分类号： H02N200

CPC分类号： H02N2/163 ,  H02N2/145

摘要： An ultrasonic motor with increased output power per unit volume is provided by simultaneously driving all of a plurality of polarized segments of a piezoelectric element having a circular disk shape and divided into a multiple of four polarized segments in a circumferential direction. Projections are provided at upper faces of the polarized segments of the piezoelectric element and spaced apart by an odd number of polarized segments. Polarities of adjacent polarized segments are the same and polarities of adjacent pairs are reverse to each other. A first polarized segment group comprises every other polarized segment and a second polarized segment group comprises the remaining polarized segments. By selecting whether phases of alternating voltages supplied to the first and second polarized segment groups are the same or are 180 degrees out of phase, the direction of the motor is determined.

摘要翻译： 通过同时驱动具有圆盘形状的压电元件的多个极化段的全部，并在圆周方向上分成四个极化段的倍数来提供每单位体积输出功率增加的超声波马达。 在压电元件的极化部分的上表面处设置有突出部分，并且间隔开奇数个极化部分。 相邻极化段的极性相同，相邻对的极性彼此相反。 第一极化段组包括每隔一个极化段，而第二极化段组包括剩余的极化段。 通过选择提供给第一和第二极化段组的交流电压的相位是相同还是相位相差180度，确定电动机的方向。

公开(公告)号：US06366003B1

公开(公告)日：2002-04-02

申请号：US09402519

申请日：2000-01-19

申请人： Masao Kasuga ,  Akihiro Iino ,  Makoto Suzuki ,  Kenji Suzuki

发明人： Masao Kasuga ,  Akihiro Iino ,  Makoto Suzuki ,  Kenji Suzuki

IPC分类号： H02N200

CPC分类号： H02N2/142 ,  H02N2/103

摘要： A compact ultrasonic motor is made easy to assemble and replace in an electronic apparatus by providing various electronic circuit components on a connector formed integrally with the ultrasonic motor. In one embodiment, a piezoelectric element is in contact with a vibrating body for undergoing vibration along with expansion-and-contraction movement of the piezoelectric element. A moving member is in contact with the vibrating body for undergoing movement in a desired direction in response to vibration of the vibrating body. A support member supports the piezoelectric element, the vibrating body, the moving member, along with a driving circuit for driving the ultrasonic motor and a connector for connecting the piezoelectric element to the driving circuit. The driving circuit is an AC signal generating circuit for supplying an AC signal to the piezoelectric element and a phase adjusting device for adjusting phase characteristics of the AC signal generating circuit. By providing the driving circuit and the connector on the support member, the ultrasonic motor is compact and easy to handle.

摘要翻译： 通过在与超声波马达一体形成的连接器上提供各种电子电路部件，使得紧凑型超声波马达易于在电子设备中组装和更换。 在一个实施例中，压电元件与振动体接触，用于随着压电元件的膨胀和收缩运动而经历振动。 移动构件与振动体接触，以响应于振动体的振动而在所需方向上运动。 支撑构件支撑压电元件，振动体，移动构件以及用于驱动超声波马达的驱动电路和用于将压电元件连接到驱动电路的连接器。 驱动电路是用于向压电元件提供AC信号的AC信号发生电路和用于调节AC信号发生电路的相位特性的相位调节装置。 通过在支撑构件上设置驱动电路和连接器，超声波马达紧凑且易于处理。

公开(公告)号：US5619089A

公开(公告)日：1997-04-08

申请号：US662902

申请日：1996-06-12

申请人： Kenji Suzuki ,  Makoto Suzuki ,  Masao Kasuga ,  Minako Suzuki ,  Akihiro Iino

发明人： Kenji Suzuki ,  Makoto Suzuki ,  Masao Kasuga ,  Minako Suzuki ,  Akihiro Iino

IPC分类号： H01L41/04 ,  H02N2/14 ,  H02N2/00

CPC分类号： H02N2/14 ,  H02N2/142 ,  H02N2/145 ,  H02N2/166

摘要： An ultrasonic motor comprises a piezo-electric element and electrode patterns disposed on a surface of the piezo-electric element at nearly equal intervals in a multiple of four. A vibrating member is disposed on another surface of and electrically connected to the piezo-electric element. A moving member is movably disposed on the vibrating member. First projections which frictionally drive the moving member by expansion and contraction movement of the piezo-electric element are disposed on a surface of the vibrating member near every other one of the boundaries of the electrode patterns of the piezo-electric element. Second projections are provided at each intermediate position between the first projections near all of the boundaries of the electrode patterns other than the boundaries near which the first projections are provided for adjusting the vibrating conditions of the vibrating member. The second projections have a different height from the first projection and do not frictionally drive the moving member. A pressure-regulating member urges the moving member into pressure contact with the vibrating member at a predetermined pressure.

摘要翻译： 超声波马达包括以四倍的倍数以几乎相等的间隔设置在压电元件的表面上的压电元件和电极图案。 振动构件设置在压电元件的另一表面上并与其电连接。 移动构件可移动地设置在振动构件上。 通过压电元件的膨胀和收缩运动来摩擦地驱动移动构件的第一凸起设置在振动构件的表面上，靠近压电元件的电极图案的每个边界。 在设置有第一突起的边界以外的电极图案的所有边界附近的第一突起之间的每个中间位置设置有第二突起，用于调节振动部件的振动条件。 第二突起具有与第一突起不同的高度，并且不摩擦地驱动移动构件。 压力调节构件促使移动构件以预定压力与振动构件压力接触。

公开(公告)号：US06064138A

公开(公告)日：2000-05-16

申请号：US74361

申请日：1998-05-07

申请人： Akihiro Iino ,  Masao Kasuga ,  Kenji Suzuki

发明人： Akihiro Iino ,  Masao Kasuga ,  Kenji Suzuki

IPC分类号： H02N2/00 ,  H01L41/04 ,  H02N2/06 ,  H02N2/14

CPC分类号： H02N2/142

摘要： An ultrasonic wave motor device comprises an oscillating body having a piezo-electric element and a driving circuit for applying an exciting signal to the piezo-electric element to oscillate the oscillating body in self-excited oscillation. The driving circuit has an amplifying circuit for amplifying the exciting signal and a phase setting circuit for setting a phase of the exciting signal amplified by the amplifying circuit. A measuring device measures a characteristic of the driving circuit or a characteristic of the oscillating body. A phase adjusting circuit corrects a shift of the phase of the exciting signal in accordance with a measurement by the measuring device.

摘要翻译： 超声波电动机装置包括具有压电元件的振荡体和用于向压电元件施加激励信号的振荡体，以使振动体在自激振荡中振荡。 驱动电路具有用于放大激励信号的放大电路和用于设定由放大电路放大的激励信号的相位的相位设定电路。 测量装置测量驱动电路的特性或振动体的特性。 相位调整电路根据测量装置的测量来校正激励信号的相位偏移。

公开(公告)号：US07005776B1

公开(公告)日：2006-02-28

申请号：US09290046

申请日：1999-04-12

申请人： Akihiro Iino ,  Masao Kasuga ,  Kenji Suzuki

发明人： Akihiro Iino ,  Masao Kasuga ,  Kenji Suzuki

IPC分类号： H01L41/08

CPC分类号： H02N2/0045 ,  H01L41/0913 ,  H02N2/0015 ,  H02N2/004 ,  H02N2/106 ,  H02N2/145 ,  H02N2/163 ,  H02N2/166

摘要： An ultrasonic motor comprises a piezoelectric vibrating member having a detecting polarized portion for detecting a drive signal having a drive frequency of the detecting polarized portion and a driving polarized portion for receiving the drive signal to oscillate the piezoelectric vibrating member in self-excited oscillation to produce a drive force. The detecting polarized portion is disposed at a portion of the piezoelectric vibrating member for undergoing maximum deformation in at least one vibration mode of oscillation of the piezoelectric vibrating member. An amplifying circuit amplifies the drive signal detected by the detecting polarized portion and inputs the amplified signal to the driving polarized portion to oscillate the piezoelectric vibrating member.

摘要翻译： 超声波马达包括具有检测极化部分的压电振动部件，用于检测具有检测极化部分的驱动频率的驱动信号和用于接收驱动信号的驱动极化部分，以使自激振荡中的压电振动部件振荡以产生 驱动力。 检测极化部分设置在压电振动部件的压电振动部件的至少一个振动模式中经历最大变形的部分。 放大电路对由检测极化部分检测出的驱动信号进行放大，并将放大的信号输入到驱动极化部分，使压电振动部件摆动。

公开(公告)号：US06586860B1

公开(公告)日：2003-07-01

申请号：US09696790

申请日：2000-10-26

申请人： Akihiro Iino ,  Kenji Suzuki ,  Masao Kasuga

发明人： Akihiro Iino ,  Kenji Suzuki ,  Masao Kasuga

IPC分类号： H01L4108

CPC分类号： H02N2/0075

摘要： In a self-excited oscillator circuit, a buffer is connected to an electrode or electrodes, and a buffer and an inverter are connected to an electrode or electrodes. Each of the inverters and and the buffer has a tri-state configuration and is capable of setting an output terminal in a high-impedance state, i.e., turning off an output signal, according to a signal input to a control terminal. Therefore, it is possible to turn off a drive circuit and the ultrasonic motor by setting the inverter in the high-impedance state. It is also possible to change the direction of movement of the moving member by setting one of the buffer and the inverter in the high-impedance state.

摘要翻译： 在自激振荡器电路中，缓冲器连接到电极或电极，并且缓冲器和反相器连接到电极或电极。 每个反相器和缓冲器都具有三态配置，并且能够根据输入到控制端子的信号将输出端子设置在高阻抗状态，即关断输出信号。 因此，可以通过将逆变器设定在高阻抗状态来关闭驱动电路和超声波电动机。 也可以通过将缓冲器和逆变器中的一个设置在高阻抗状态来改变移动部件的移动方向。

公开(公告)号：US6144140A

公开(公告)日：2000-11-07

申请号：US207310

申请日：1998-12-07

申请人： Akihiro Iino ,  Kenji Suzuki ,  Masao Kasuga

发明人： Akihiro Iino ,  Kenji Suzuki ,  Masao Kasuga

IPC分类号： B06B1/06 ,  H01L41/04 ,  H02N2/00 ,  H02N2/06 ,  H01L41/08

CPC分类号： H02N2/142 ,  H02N2/145

摘要： An ultrasonic motor has a piezoelectric element, a driver circuit for creating an excitation signal based on information about the excitation of the piezoelectric element, and a power supply for supplying a voltage to the driver circuit. This motor includes a voltage-adjusting circuit for adjusting the voltage supplied from the power supply to the driver circuit. The motor further includes a voltage comparison means for comparing the voltage detected by the voltage-detecting means with data about a preset voltage of the power supply and a circuit constant control means for controlling the voltage-adjusting circuit to optimize the voltage supplied to the driver circuit, for example, if the comparison made by the voltage-comparing means indicates that the detected voltage is not coincident with the data about the voltage of the power supply.

摘要翻译： 超声波马达具有压电元件，用于根据关于压电元件的激励的信息产生激励信号的驱动电路和用于向驱动电路提供电压的电源。 该电动机包括用于调节从电源向驱动器电路供应的电压的电压调节电路。 电动机还包括电压比较装置，用于将由电压检测装置检测的电压与关于电源的预设电压的数据进行比较;以及电路恒定控制装置，用于控制电压调节电路以优化提供给驱动器的电压 电路，例如，如果由电压比较装置进行的比较表明检测到的电压与关于电源的电压的数据不一致。

公开(公告)号：US6081063A

公开(公告)日：2000-06-27

申请号：US78471

申请日：1998-05-14

申请人： Masao Kasuga ,  Akihiro Iino ,  Makoto Suziki ,  Kenji Suzuki

发明人： Masao Kasuga ,  Akihiro Iino ,  Makoto Suziki ,  Kenji Suzuki

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

CPC分类号： H01L41/0913 ,  H02N2/026 ,  H02N2/103 ,  H01L41/083

摘要： An ultrasonic motor has at least one piezoelectric flexing vibration member driven by application of a voltage thereto to undergo flexing vibration. A piezoelectric stretching vibration member is integrally laminated in a lamination direction on the piezoelectric flexing vibration member and is driven by application of a voltage thereto to undergo stretching vibration in a direction generally perpendicular to the lamination direction. A movable body is vibrationally driven by a combination of the flexing vibration of the piezoelectric flexing vibration member and the stretching vibration of the piezoelectric stretching vibration member.

摘要翻译： 超声波马达具有通过向其施加电压而被驱动的至少一个压电挠曲振动件，以经受挠曲振动。 压电拉伸振动部件在压电挠曲振动部件上沿层叠方向一体地层叠，并通过施加电压而被驱动，以在大致垂直于层叠方向的方向上进行拉伸振动。 通过压电挠曲振动部件的弯曲振动与压电伸缩振动部件的伸缩振动的组合振动地驱动移动体。