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公开(公告)号：US07053531B2
公开(公告)日：2006-05-30
申请号：US10512560
申请日：2003-04-11
申请人： Makoto Chisaka , Osamu Kobayashi
发明人： Makoto Chisaka , Osamu Kobayashi
CPC分类号： H01L41/37 , B06B1/0622 , H04R17/025 , Y10T29/42
摘要： The present invention provides a composite piezoelectric transducer having a piezoelectric ceramic, an organic polymer, and an electrode group formed only on surfaces of the piezoelectric ceramic. The groove is formed, having a depth 50% to 90% of the thickness of the piezoelectric ceramic. A ratio, between a width of a non-diced area formed by forming the groove on the piezoelectric ceramic and the depth of the groove is 0.2 to 0.7. An organic polymer is filled in the groove formed in the piezoelectric ceramic in a state including bubbles. The electrode group comprises a first electrode and a second electrode, the first electrode being formed on a first surface of the piezoelectric ceramic, and the second electrode being formed on a second surface of the piezoelectric ceramic, a side surface thereof, or on the second surface, the side surface and the first surface, the second surface being opposite to the first surface in the direction of the thickness of the piezoelectric ceramic. Thus, it has a high coefficient of electromechanical coupling (kt) in the direction of the thickness, and a reduced acoustic impedance, and preferably used especially in an ultrasonic cleaning equipment.
摘要翻译： 本发明提供一种具有压电陶瓷，有机聚合物和仅在压电陶瓷的表面上形成的电极组的复合压电换能器。 形成凹槽，其深度为压电陶瓷厚度的50％至90％。 通过在压电陶瓷上形成凹槽形成的非切割区域的宽度与凹槽的深度之间的比率为0.2至0.7。 有机聚合物以包含气泡的状态填充在形成在压电陶瓷中的槽中。 所述电极组包括第一电极和第二电极，所述第一电极形成在所述压电陶瓷的第一表面上，所述第二电极形成在所述压电陶瓷的第二表面，其侧表面上，或者在所述第二电极的第二表面上形成 表面，侧表面和第一表面，第二表面在压电陶瓷的厚度方向上与第一表面相对。 因此，其在厚度方向上具有高的机电耦合系数（kt）和减小的声阻抗，并且优选地特别地用于超声波清洗设备中。
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公开(公告)号：US20050174017A1
公开(公告)日：2005-08-11
申请号：US10512560
申请日：2003-04-11
申请人： Makoto Chisaka , Osamu Kobayashi
发明人： Makoto Chisaka , Osamu Kobayashi
IPC分类号： H04R17/00 , B06B1/06 , H01L41/04 , H01L41/08 , H01L41/22 , H01L41/338 , H01L41/37 , H04R17/02 , H04R31/00 , H01L41/187
CPC分类号： H01L41/37 , B06B1/0622 , H04R17/025 , Y10T29/42
摘要： The present invention provides a composite piezoelectric transducer having a piezoelectric ceramic, an organic polymer, and an electrode group formed only on surfaces of the piezoelectric ceramic. The groove is formed, having a depth 50% to 90% of the thickness of the piezoelectric ceramic. A ratio, between a width of a non-diced area formed by forming the groove on the piezoelectric ceramic and the depth of the groove is 0.2 to 0.7. An organic polymer is filled in the groove formed in the piezoelectric ceramic in a state including bubbles. The electrode group comprises a first electrode and a second electrode, the first electrode being formed on a first surface of the piezoelectric ceramic, and the second electrode being formed on a second surface of the piezoelectric ceramic, a side surface thereof, or on the second surface, the side surface and the first surface, the second surface being opposite to the first surface in the direction of the thickness of the piezoelectric ceramic. Thus, it has a high coefficient of electromechanical coupling (kt) in the direction of the thickness, and a reduced acoustic impedance, and preferably used especially in an ultrasonic cleaning equipment.
摘要翻译： 本发明提供一种具有压电陶瓷，有机聚合物和仅在压电陶瓷的表面上形成的电极组的复合压电换能器。 形成凹槽，其深度为压电陶瓷厚度的50％至90％。 通过在压电陶瓷上形成凹槽形成的非切割区域的宽度与凹槽的深度之间的比率为0.2至0.7。 有机聚合物以包含气泡的状态填充在形成在压电陶瓷中的槽中。 所述电极组包括第一电极和第二电极，所述第一电极形成在所述压电陶瓷的第一表面上，所述第二电极形成在所述压电陶瓷的第二表面，其侧表面上，或者在所述第二电极的第二表面上形成 表面，侧表面和第一表面，第二表面在压电陶瓷的厚度方向上与第一表面相对。 因此，其在厚度方向上具有高的机电耦合系数（kt）和减小的声阻抗，并且优选地特别地用于超声波清洗设备中。
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公开(公告)号：US07030542B2
公开(公告)日：2006-04-18
申请号：US10511675
申请日：2003-04-04
申请人： Makoto Chisaka , Osamu Kobayashi
发明人： Makoto Chisaka , Osamu Kobayashi
IPC分类号： H01L41/187
CPC分类号： H01L41/37 , H01L41/183 , Y10S310/80 , Y10T29/42
摘要： The present invention proves a piezoelectric composite comprising, as main components, a piezoelectric ceramic and a polymer having a bulk density of 0.4 g/cm3 or less, the polymer including bubbles dispersed therein. Therefore, the piezoelectric composite of the present invention has a reduced bulk density, a high coefficient of electromechanical coupling in spite of the piezoelectric ceramic having a low volume ratio, a reduced acoustic impedance and a good processing character.
摘要翻译： 本发明证明了一种压电复合材料，其包含作为主要成分的压电陶瓷和堆积密度为0.4g / cm 3以下的聚合物，其中分散有气泡的聚合物。 因此，尽管压电陶瓷具有低体积比，降低的声阻抗和良好的加工特性，但是本发明的压电复合材料具有减小的体积密度，高机电耦合系数。
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公开(公告)号：US20050174016A1
公开(公告)日：2005-08-11
申请号：US10511675
申请日：2003-04-04
申请人： Makoto Chisaka , Osamu Kobayashi
发明人： Makoto Chisaka , Osamu Kobayashi
CPC分类号： H01L41/37 , H01L41/183 , Y10S310/80 , Y10T29/42
摘要： The present invention proves a piezoelectric composite comprising, as main components, a piezoelectric ceramic and a polymer having a bulk density of 0.4 g/cm3 or less, the polymer including bubbles dispersed therein. Therefore, the piezoelectric composite of the present invention has a reduced bulk density, a high coefficient of electromechanical coupling in spite of the piezoelectric ceramic having a low volume ratio, a reduced acoustic impedance and a good processing character.
摘要翻译： 本发明证明了一种压电复合材料，其包含作为主要成分的压电陶瓷和堆积密度为0.4g / cm 3以下的聚合物，其中分散有气泡的聚合物。 因此，尽管压电陶瓷具有低体积比，降低的声阻抗和良好的加工特性，但是本发明的压电复合材料具有减小的体积密度，高机电耦合系数。
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