公开(公告)号：US06388362B1

公开(公告)日：2002-05-14

申请号：US09245046

申请日：1999-02-04

申请人： Kenji Suzuki ,  Takashi Yamanaka ,  Akihiro Iino ,  Kazuo Katou ,  Makoto Suzuki

发明人： Kenji Suzuki ,  Takashi Yamanaka ,  Akihiro Iino ,  Kazuo Katou ,  Makoto Suzuki

IPC分类号： H01L4108

CPC分类号： H02N2/166 ,  H02N2/147

摘要： An ultrasonic motor includes an oscillation drive circuit for generating an oscillation wave by self-excited oscillation of an oscillator bonded with a piezoelectric element, and a start/stop signal generating circuit for generating a signal for controlling the starting and stopping of the ultrasonic motor by bringing the oscillation drive circuit into an active state and a stop state, respectively. The oscillation drive circuit includes a power amplifier for amplifying an excitation signal, a capacitive circuit for adjusting a frequency of the excitation signal, and a switching circuit connected to a capacitive element of the capacitive circuit for short-circuiting terminals of the capacitive element based on an output signal of the start/stop signal generating circuit.

摘要翻译： 超声波马达包括：振荡驱动电路，用于通过与压电元件接合的振荡器的自激振荡产生振荡波;以及启动/停止信号发生电路，用于产生用于控制超声波马达的启动和停止的信号 将振荡驱动电路分别置于活动状态和停止状态。 振荡驱动电路包括用于放大激励信号的功率放大器，用于调节激励信号的频率的电容电路，以及连接到用于电容元件的短路端子的电容电路的电容元件的开关电路，其基于 启动/停止信号发生电路的输出信号。

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：US6104124A

公开(公告)日：2000-08-15

申请号：US127098

申请日：1998-07-31

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

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

IPC分类号： G04C3/12 ,  H01L41/09 ,  H02N2/00 ,  H02N2/16 ,  H01L41/08

CPC分类号： H02N2/166

摘要： An ultrasonic motor has a piezoelectric element driven by application of a voltage thereto to undergo expansion and contraction. A vibrating body is vibrationally driven by the expansion and contraction movement of the piezoelectric element to thereby produce standing waves. A moving body is frictionally driven by the standing waves of the vibrating body. Power transmission projections apply a frictional force to the moving body to thereby frictionally drive the moving body in accordance with the standing waves. The power transmission projections are disposed only every preselected number of wavelengths at intermediate positions between loops and nodes of the standing waves, the preselected number being a natural number.

摘要翻译： 超声波马达具有通过施加电压而被驱动以进行膨胀和收缩的压电元件。 振动体由压电元件的膨胀和收缩运动振动驱动，从而产生驻波。 移动体被振动体的驻波摩擦地驱动。 动力传递突起对移动体施加摩擦力，从而根据驻波摩擦地驱动移动体。 功率传输突起仅在驻波的环路和节点之间的中间位置处布置每个预选数量的波长，预选数量是自然数。

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：US5770912A

公开(公告)日：1998-06-23

申请号：US611637

申请日：1996-03-06

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

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

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

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

摘要： An ultrasonic motor comprises a piezoelectric element having first and second surfaces, a plurality of electrode patterns disposed on the first surface of the piezoelectric element, first and second circuits for short-circuiting every other one of the electrode patterns to form two electrode pattern groups, a vibrating member disposed on the second surface of and electrically connected to the piezoelectric element, a moving member movably disposed on the vibrating member, a pressure-regulating member for urging the moving member into pressure contact with the vibrating member, and an oscillation drive circuit having at least two power amplifiers and a pre-amplifier. Each of the power amplifiers has an output terminal connected to one of the electrode pattern groups. The pre-amplifier has an input terminal and an output terminal, the input terminal being connected to one of the first and second surfaces of the piezoelectric element, and the output terminal being connected to input terminals of the at least two power amplifiers.

摘要翻译： 超声波马达包括具有第一和第二表面的压电元件，设置在压电元件的第一表面上的多个电极图案，用于使每隔一个电极图案短路以形成两个电极图案组的第一和第二电路， 设置在压电元件的第二表面上并电连接的振动元件，可移动地设置在振动元件上的移动元件，用于推动移动元件与振动元件压力接触的压力调节元件，以及振荡驱动电路 具有至少两个功率放大器和前置放大器。 每个功率放大器具有连接到电极图案组之一的输出端子。 前置放大器具有输入端子和输出端子，输入端子连接到压电元件的第一和第二表面之一，输出端子连接到至少两个功率放大器的输入端子。

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：US06396194B1

公开(公告)日：2002-05-28

申请号：US09177455

申请日：1998-10-22

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

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

IPC分类号： H01L4104

CPC分类号： H01L41/0906

摘要： An ultrasonic motor has a vibrating body polarized in a given direction. The vibrating body comprises a first piezoelectric body and a second piezoelectric body laminated to the first piezoelectric body in a preselected direction generally parallel to the polarized direction. Each of the first piezoelectric body and the second piezoelectric body has a first polarized portion and a second polarized portion. The first polarized portion of the first piezoelectric body is aligned in the preselected direction with the second polarized portion of the second piezoelectric body. The second polarized portion of the first piezoelectric body is aligned in the preselected direction with the first polarized portion of the second piezoelectric body. A movable member is frictionally driven by a combination of a stretching vibration and a bending vibration generated by applying a driving signal to the first polarized portions of the first and second piezoelectric bodies or to the second polarized portions of the first and second piezoelectric bodies.

摘要翻译： 超声波马达具有沿给定方向偏振的振动体。 振动体包括第一压电体和第二压电体，该第一压电体和第二压电体沿大致平行于偏振方向的预选方向层叠到第一压电体上。 第一压电体和第二压电体各自具有第一偏振部和第二偏振部。 第一压电体的第一极化部分在预选方向上与第二压电体的第二极化部对准。 第一压电体的第二极化部分在预选方向上与第二压电体的第一极化部对准。 通过将驱动信号施加到第一和第二压电体的第一偏振部分或第一和第二压电体的第二偏振部分而产生的拉伸振动和弯曲振动的组合来摩擦地驱动可动部件。

公开(公告)号：US07215062B1

公开(公告)日：2007-05-08

申请号：US09369090

申请日：1999-08-05

申请人： Akihiro Iino ,  Masao Kasuga ,  Makoto Suzuki

发明人： Akihiro Iino ,  Masao Kasuga ,  Makoto Suzuki

IPC分类号： H01L41/08

CPC分类号： H01L41/0913 ,  H02N2/004 ,  H02N2/006 ,  H02N2/0085 ,  H02N2/103

摘要： An ultrasonic motor constructed so as to have improved driving force, reduced vibrational loss and smaller dimensions as compared with the conventional art. A piezoelectric vibrator generates a vibrational driving force in response to a received drive signal. A drive signal generator generates the drive signal. The drive signal is transmitted along leads to support members. The support members support, and are in electrical connection with, the piezoelectric vibrator on the substrate. Thus, the support member is effective for both supporting the piezoelectric member and for transmitting the drive signal from the drive signal generator to the piezoelectric vibrator. A moving member is in communication with the piezoelectric vibrator and moves in response to the vibrational driving force. The support member may be comprised of an elastic material so that it is effective for urging the piezoelectric vibrator against the moving member. This increases the frictional relationship between the moving member and the vibrational driving force, thereby increasing the output driving force. The support member may include a relatively thinner constriction portion and a relatively thicker connection portion, the constriction portion being effective for decreasing vibration losses. The support member may also be incorporated as part of the substrate, wherein the substrate includes a recess portion effective for receiving the piezoelectric vibrator to reduce thickness. To further reduce the overall dimensions of the inventive ultrasonic motor, the electrically conductive support member may be part of a drive circuit for generating the drive signal. Also, the support member may be configured for supporting the piezoelectric vibrator at a flex vibration node of the piezoelectric vibrator to reduce vibrational loss.

摘要翻译： 与常规技术相比，构造成具有改善的驱动力，减小的振动损失和更小的尺寸的超声波马达。 压电振动器响应于接收的驱动信号产生振动驱动力。 驱动信号发生器产生驱动信号。 驱动信号沿着引线传输到支撑构件。 支撑构件支撑并与衬底上的压电振动器电连接。 因此，支撑构件对于支撑压电构件和将驱动信号从驱动信号发生器传送到压电振动器都是有效的。 移动构件与压电振动器连通并且响应于振动驱动力移动。 支撑构件可以由弹性材料构成，使得压电振动器抵靠移动构件是有效的。 这增加了移动构件与振动驱动力之间的摩擦关系，从而增加了输出驱动力。 支撑构件可以包括相对较薄的收缩部分和相对较厚的连接部分，收缩部分对于减少振动损失是有效的。 支撑构件也可以作为衬底的一部分结合，其中衬底包括有效地接收压电振动器以减小厚度的凹部。 为了进一步减小本发明的超声波马达的整体尺寸，导电支撑构件可以是用于产生驱动信号的驱动电路的一部分。 此外，支撑构件可以被配置为在压电振动器的柔性振动节点处支撑压电振动器以减少振动损失。

公开(公告)号：US06707232B2

公开(公告)日：2004-03-16

申请号：US09772628

申请日：2001-01-30

申请人： Akihiro Iino ,  Masao Kasuga ,  Makoto Suzuki ,  Tatsuru Sato ,  Satoshi Watanabe ,  Yoko Shinohara

发明人： Akihiro Iino ,  Masao Kasuga ,  Makoto Suzuki ,  Tatsuru Sato ,  Satoshi Watanabe ,  Yoko Shinohara

IPC分类号： H01L4108

CPC分类号： H02N2/0015 ,  H02N2/103

摘要： An ultrasonic motor has a vibrating body and a piezoelectric element disposed on the vibrating body for generating a vibration wave to vibrate the vibrating body. The vibration wave has a vibration node disposed on a diagonal line of the vibrating body. At least one protrusion is connected to the vibrating body for vibration therewith. The protrusion is disposed on the vibrating body at a position which does not correspond to the position of the vibration node. A moving body is disposed in contact with and driven by the protrusion during vibration thereof.

摘要翻译： 超声波马达具有振动体和设置在振动体上的压电元件，用于产生使振动体振动的振动波。 振动波具有设置在振动体的对角线上的振动节点。 至少一个突起连接到振动体以与其振动。 该突出部设置在与振动节点的位置对应的位置上的振动体上。 移动体在其振动期间与突起接触并被驱动。