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公开(公告)号：US08378555B2
公开(公告)日：2013-02-19
申请号：US13437299
申请日：2012-04-02
IPC分类号： H01L41/047
CPC分类号： H02N2/025 , H01L41/313
摘要： An electromechanical conversion element having high connection reliability and an actuator equipped with the electromechanical conversion element. The electromechanical conversion element includes: a displacement part capable of expanding and contracting by application of voltage and having electrode forming faces and an adhesion face which are disposed adjacent to each other; and external electrodes on the electrode forming faces, in which lead electrodes for applying voltage to the displacement part are bonded to bonding regions provided in the external electrodes, and a driven member capable of being driven by the expansion and contraction of the displacement part is bonded to the adhesion face by an adhesive. The electromechanical conversion element further includes bleed flow blocking parts on the electrode forming faces at points closer to the adhesion face than ends of the bonding regions located on the same side as the adhesion face.
摘要翻译： 具有高连接可靠性的机电转换元件和配备有机电转换元件的致动器。 机电转换元件包括：能够通过施加电压而伸缩的位移部件，并且具有彼此相邻设置的电极形成面和粘合面; 并且电极形成面上的外部电极，其中向位移部分施加电压的引线电极被接合到设置在外部电极中的接合区域，并且能够通过位移部分的膨胀和收缩而被驱动的从动构件被接合 通过粘合剂粘附到粘合面上。 机电转换元件还包括在与粘合面位于同一侧的接合区域的端部处的电极形成面处的渗出阻流部分，其比靠近粘合面的点处。
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公开(公告)号：US20070040479A1
公开(公告)日：2007-02-22
申请号：US11503480
申请日：2006-08-11
摘要： A drive unit being characterized in that a movable object can be prevented from being tilted when the movable object is stopped using a restricting member. The drive unit comprises a piezoelectric element; a rod provided at an end of the piezoelectric element; a movable object, which is frictionally engaged with the rod and the movable range of which is restricted using the restricting members; and drive pulse generating means for applying drive signals to the piezoelectric element, wherein the drive pulse generating means apply a first wave drive signal for vibrating the rod so that the movable object moves toward the restricting member when the movable object is moved to a position where the movable object is close to the restricting member, and temporarily apply a second wave drive signal for vibrating the rod so that the movable object is moved in a direction of movement away from the restricting member after the movable object is made contact with the restricting member, and then stop the application of the drive signal.
摘要翻译： 一种驱动单元，其特征在于，当使用限制构件停止可移动物体时，可以防止可移动物体倾斜。 驱动单元包括压电元件; 设置在所述压电元件的端部的杆; 可动物体，其与杆摩擦接合，并且其可移动范围使用限制构件限制; 以及用于向压电元件施加驱动信号的驱动脉冲产生装置，其中驱动脉冲产生装置施加第一波驱动信号以使杆振动，使得当可移动物体移动到可移动物体移动到 可移动物体靠近限制构件，并且暂时施加用于使杆振动的第二波驱动信号，使得在可移动物体与限制构件接触之后，可移动物体在远离限制构件的运动方向上移动 ，然后停止驱动信号的应用。
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公开(公告)号：US20070075608A1
公开(公告)日：2007-04-05
申请号：US11542853
申请日：2006-10-04
申请人： Tomoyuki Yuasa , Yasuhiro Okamoto
发明人： Tomoyuki Yuasa , Yasuhiro Okamoto
IPC分类号： H02N2/00
CPC分类号： H02N2/025
摘要： There is provided a drive unit which has high adhesive strength of its components and generates large drive power. The drive unit includes an electromechanical transducer, a driving friction member connected to an end surface of the electromechanical transducer and an engaging member engaging frictionally with the driving friction member. At least one end portion of the electromechanical transducer has a reduced cross-sectional area relative to a middle portion thereof.
摘要翻译： 提供了一种驱动单元，其具有高的组件粘合强度并产生大的驱动功率。 驱动单元包括机电换能器，连接到机电换能器端面的驱动摩擦件和与驱动摩擦件摩擦啮合的啮合件。 机电换能器的至少一个端部相对于其中间部分具有减小的横截面面积。
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4.发明授权Drive mechanism employing electromechanical transducer and method for controlling the drive mechanism 有权采用机电传感器的驱动机构及驱动机构的控制方法公开(公告)号：US06717329B2
公开(公告)日：2004-04-06
申请号：US10053186
申请日：2002-01-18
IPC分类号： H01L4106
摘要： An actuator using vibration caused by a piezoelectric element. The actuator includes: an driving rod bonded to one of the piezoelectric element; a engaging member for engaging frictionally with the driving rod; and a control circuit for applying the piezoelectric element with a driving voltage. The control circuit is provided with a drive circuit which generates a first set of the driving voltage for driving the engaging member, and with a friction reducing circuit which generates a second set of the driving voltage for reducing a frictional force exerting between the driving rod and the engaging member.
摘要翻译： 使用由压电元件引起的振动的致动器。 所述致动器包括：驱动杆，其接合到所述压电元件之一; 用于与驱动杆摩擦啮合的啮合件; 以及用于施加驱动电压的压电元件的控制电路。 控制电路设置有驱动电路，该驱动电路产生用于驱动接合构件的第一组驱动电压，并且具有产生第二组驱动电压的摩擦减小电路，用于减小在驱动杆和驱动杆之间施加的摩擦力 接合构件。
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公开(公告)号：US07315108B2
公开(公告)日：2008-01-01
申请号：US11391824
申请日：2006-03-29
申请人： Yasuhiro Okamoto , Tomoyuki Yuasa
发明人： Yasuhiro Okamoto , Tomoyuki Yuasa
IPC分类号： H02N2/00
CPC分类号： H02N2/025
摘要： A piezoelectric element expands and contracts when a pulse voltage is applied. A fixing body is fixed to one end of the piezoelectric element in an expansion-contraction direction. A driving shaft is fixed to the other end of the piezoelectric element in the expansion-contraction direction. A movable body is supported to the driving shaft slidably. When a pulse voltage is applied to the piezoelectric element, the piezoelectric element contracts and expands. Accordingly, the driving shaft oscillates, and the movable body slides along the driving shaft. A material of the driving shaft is fiber reinforced resin complex. A synthetic resin material composing the fiber reinforced resin complex is liquid crystal polymer or polyphenylene sulfide.
摘要翻译： 当施加脉冲电压时，压电元件膨胀和收缩。 固定体在膨胀收缩方向固定在压电元件的一端。 驱动轴在膨胀收缩方向固定在压电元件的另一端。 可移动体可滑动地支撑在驱动轴上。 当压电元件施加脉冲电压时，压电元件收缩并膨胀。 因此，驱动轴摆动，可动体沿驱动轴滑动。 驱动轴的材料是纤维增强树脂复合体。 构成纤维增强树脂配合物的合成树脂材料是液晶聚合物或聚苯硫醚。
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公开(公告)号：US07271522B2
公开(公告)日：2007-09-18
申请号：US11353691
申请日：2006-02-14
申请人： Tomoyuki Yuasa , Yasuhiro Okamoto
发明人： Tomoyuki Yuasa , Yasuhiro Okamoto
IPC分类号： H01L41/09
摘要： A driving device of the disclosure has an electromechanical transducer that extends and contracts upon application of voltage thereto and a support member that slidably supports a movable body and is displaced with the electromechanical transducer to which the support member is connected. The disclosed device includes a drive circuit that applies the voltage to the electromechanical transducer is such that the voltage which increases or decreases from a first voltage to a last voltage in a stepped manner and in which at least three values sequentially circulate. A period of time for which the first voltage is applied is changeable. By this method, the movable body is moved with respect to the support member by making a difference between an extension velocity and a contraction velocity.
摘要翻译： 本公开的驱动装置具有在施加电压时延伸和收缩的机电换能器，以及支撑构件，其可滑动地支撑可移动体并且与支撑构件连接到的机电换能器一起移位。 所公开的装置包括将电压施加到机电换能器的驱动电路使得以阶梯式方式从第一电压增加或减小到最后电压并且其中至少三个值顺序循环的电压。 施加第一电压的时间段是可变的。 通过该方法，通过使延伸速度和收缩速度之间的差异，可移动体相对于支撑构件移动。
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公开(公告)号：US20120187800A1
公开(公告)日：2012-07-26
申请号：US13437299
申请日：2012-04-02
IPC分类号： H01L41/047 , H01L41/09
CPC分类号： H02N2/025 , H01L41/313
摘要： An electromechanical conversion element having high connection reliability and an actuator equipped with the electromechanical conversion element. The electromechanical conversion element includes: a displacement part capable of expanding and contracting by application of voltage and having electrode forming faces and an adhesion face which are disposed adjacent to each other; and external electrodes on the electrode forming faces, in which lead electrodes for applying voltage to the displacement part are bonded to bonding regions provided in the external electrodes, and a driven member capable of being driven by the expansion and contraction of the displacement part is bonded to the adhesion face by an adhesive. The electromechanical conversion element further includes bleed flow blocking parts on the electrode forming faces at points closer to the adhesion face than ends of the bonding regions located on the same side as the adhesion face.
摘要翻译： 具有高连接可靠性的机电转换元件和配备有机电转换元件的致动器。 机电转换元件包括：能够通过施加电压而伸缩的位移部件，并且具有彼此相邻设置的电极形成面和粘合面; 并且电极形成面上的外部电极，其中向位移部分施加电压的引线电极被接合到设置在外部电极中的接合区域，并且能够通过位移部分的膨胀和收缩而被驱动的从动构件被接合 通过粘合剂粘附到粘合面上。 机电转换元件还包括在与粘合面位于同一侧的接合区域的端部处的电极形成面处的渗出阻流部分，其比靠近粘合面的点处。
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公开(公告)号：US07456546B2
公开(公告)日：2008-11-25
申请号：US11503480
申请日：2006-08-11
IPC分类号： H01L41/09
摘要： A drive unit being characterized in that a movable object can be prevented from being tilted when the movable object is stopped using a restricting member. The drive unit comprises a piezoelectric element; a rod provided at an end of the piezoelectric element; a movable object, which is frictionally engaged with the rod and the movable range of which is restricted using the restricting members; and drive pulse generating means for applying drive signals to the piezoelectric element, wherein the drive pulse generating means apply a first wave drive signal for vibrating the rod so that the movable object moves toward the restricting member when the movable object is moved to a position where the movable object is close to the restricting member, and temporarily apply a second wave drive signal for vibrating the rod so that the movable object is moved in a direction of movement away from the restricting member after the movable object is made contact with the restricting member, and then stop the application of the drive signal.
摘要翻译： 一种驱动单元，其特征在于，当使用限制构件停止可移动物体时，可以防止可移动物体倾斜。 驱动单元包括压电元件; 设置在所述压电元件的端部的杆; 可动物体，其与杆摩擦接合，并且其可移动范围使用限制构件限制; 以及用于向压电元件施加驱动信号的驱动脉冲产生装置，其中驱动脉冲产生装置施加第一波驱动信号以使杆振动，使得当可移动物体移动到可移动物体移动到 可移动物体靠近限制构件，并且暂时施加用于使杆振动的第二波驱动信号，使得在可移动物体与限制构件接触之后，可移动物体在远离限制构件的运动方向上移动 ，然后停止驱动信号的应用。
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公开(公告)号：US20060220497A1
公开(公告)日：2006-10-05
申请号：US11391824
申请日：2006-03-29
申请人： Yasuhiro Okamoto , Tomoyuki Yuasa
发明人： Yasuhiro Okamoto , Tomoyuki Yuasa
IPC分类号： H02N2/00
CPC分类号： H02N2/025
摘要： A piezoelectric element expands and contracts when a pulse voltage is applied. A fixing body is fixed to one end of the piezoelectric element in an expansion-contraction direction. A driving shaft is fixed to the other end of the piezoelectric element in the expansion-contraction direction. A movable body is supported to the driving shaft slidably. When a pulse voltage is applied to the piezoelectric element, the piezoelectric element contracts and expands. Accordingly, the driving shaft oscillates, and the movable body slides along the driving shaft. A material of the driving shaft is fiber reinforced resin complex. A synthetic resin material composing the fiber reinforced resin complex is liquid crystal polymer or polyphenylene sulfide.
摘要翻译： 当施加脉冲电压时，压电元件膨胀和收缩。 固定体在膨胀收缩方向固定在压电元件的一端。 驱动轴在膨胀收缩方向固定在压电元件的另一端。 可移动体可滑动地支撑在驱动轴上。 当压电元件施加脉冲电压时，压电元件收缩并膨胀。 因此，驱动轴摆动，可动体沿驱动轴滑动。 驱动轴的材料是纤维增强树脂复合体。 构成纤维增强树脂配合物的合成树脂材料是液晶聚合物或聚苯硫醚。
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公开(公告)号：US20060186758A1
公开(公告)日：2006-08-24
申请号：US11353691
申请日：2006-02-14
申请人： Tomoyuki Yuasa , Yasuhiro Okamoto
发明人： Tomoyuki Yuasa , Yasuhiro Okamoto
IPC分类号： H01L41/09
摘要： A driving device of the invention has an electromechanical transducer that extends and contracts upon application of voltage thereto, a support member that slidably supports a movable body and is displaced with the electromechanical transducer to which the support member is connected, and a drive circuit that applies the voltage to the electromechanical transducer, wherein applied to the electromechanical transducer by the drive circuit is the voltage which increases or decreases from a first voltage to a last voltage in a stepped manner and in which at least three values sequentially circulates, the movable body is relatively moved with respect to the support member by making a difference between an extension velocity and a contraction velocity when the electromechanical transducer extends and contracts upon application of the voltage thereto, and a period of time for which the first voltage is applied is changeable.
摘要翻译： 本发明的驱动装置具有在施加电压时延伸和收缩的机电换能器，支撑构件，其可滑动地支撑可移动体并且与连接有支撑构件的机电换能器一起移位，并且驱动电路适用于 通过驱动电路施加到机电换能器的机电换能器的电压是以阶梯式方式从第一电压增加或减小到最后电压的电压，并且其中至少三个值顺序循环，可移动体是 通过在机电换能器延伸时的延伸速度和收缩速度之间的差异相对于支撑构件相对移动，并且在施加电压时收缩，并且施加第一电压的时间段是可变的。
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