公开(公告)号：US20100140379A1

公开(公告)日：2010-06-10

申请号：US12528683

申请日：2008-02-26

申请人： Satoshi Suzuki ,  Atsushi Murai ,  Hiroaki Asano ,  Kouji Noda ,  Toshiatu Nagaya ,  Akio Iwase ,  Akira Fujii ,  Shige Kadotani

发明人： Satoshi Suzuki ,  Atsushi Murai ,  Hiroaki Asano ,  Kouji Noda ,  Toshiatu Nagaya ,  Akio Iwase ,  Akira Fujii ,  Shige Kadotani

IPC分类号： F02M51/06 ,  H01L41/083 ,  H01L41/187

CPC分类号： H01L41/0838 ,  F02M63/0026 ,  H01L41/273

摘要： A stacked piezoelectric device 1 including a ceramic laminate formed by laminating piezoelectric ceramic layers and inner electrode layers alternately and a pair of side electrodes. The inner electrode layers 13 and 14 have inner electrode portions 131 and 141 and the recessed portions 132 and 142. The ceramic laminate 15 has the stress absorbing portions 11 and 12. A recessed distance of one of two of the recessed portions 132 and 142 which interleave the stress absorbing portions 11 and 12 therebetween which is located on the same side surface as the stress absorbing portion 11 or 12 is greater than the depth of the stress absorbing portion 11 and 12.

摘要翻译： 包括通过交替层叠压电陶瓷层和内部电极层而形成的陶瓷层叠体的叠层型压电装置1和一对侧面电极。 内部电极层13和14具有内部电极部分131和141以及凹陷部分132和142.陶瓷层压体15具有应力吸收部分11和12.两个凹部132和142中的一个的凹入距离 交替位于与应力吸收部分11或12相同的侧表面上的应力吸收部分11和12大于应力吸收部分11和12的深度。

公开(公告)号：US08240582B2

公开(公告)日：2012-08-14

申请号：US12528683

申请日：2008-02-26

申请人： Satoshi Suzuki ,  Atsushi Murai ,  Hiroaki Asano ,  Kouji Noda ,  Toshiatu Nagaya ,  Akio Iwase ,  Akira Fujii ,  Shige Kadotani

发明人： Satoshi Suzuki ,  Atsushi Murai ,  Hiroaki Asano ,  Kouji Noda ,  Toshiatu Nagaya ,  Akio Iwase ,  Akira Fujii ,  Shige Kadotani

IPC分类号： B05B1/08

CPC分类号： H01L41/0838 ,  F02M63/0026 ,  H01L41/273

摘要： A stacked piezoelectric device 1 including a ceramic laminate formed by laminating piezoelectric ceramic layers and inner electrode layers alternately and a pair of side electrodes. The inner electrode layers 13 and 14 have inner electrode portions 131 and 141 and the recessed portions 132 and 142. The ceramic laminate 15 has the stress absorbing portions 11 and 12. A recessed distance of one of two of the recessed portions 132 and 142 which interleave the stress absorbing portions 11 and 12 therebetween which is located on the same side surface as the stress absorbing portion 11 or 12 is greater than the depth of the stress absorbing portion 11 and 12.

摘要翻译： 包括通过交替层叠压电陶瓷层和内部电极层而形成的陶瓷层叠体的叠层型压电装置1和一对侧面电极。 内部电极层13和14具有内部电极部分131和141以及凹陷部分132和142.陶瓷层压体15具有应力吸收部分11和12.两个凹部132和142中的一个的凹入距离 交替位于与应力吸收部分11或12相同的侧表面上的应力吸收部分11和12大于应力吸收部分11和12的深度。

公开(公告)号：US20100139621A1

公开(公告)日：2010-06-10

申请号：US12528677

申请日：2008-02-26

申请人： Atsushi Murai ,  Satoshi Suzuki ,  Toshiatu Nagaya ,  Akio Iwase ,  Akira Fujii ,  Shige Kadotani

发明人： Atsushi Murai ,  Satoshi Suzuki ,  Toshiatu Nagaya ,  Akio Iwase ,  Akira Fujii ,  Shige Kadotani

IPC分类号： F02M51/00 ,  H01L41/083 ,  H01L41/24 ,  H01L41/047

CPC分类号： H01L41/273 ,  H01L41/0838 ,  Y10T29/42

摘要： A stacked piezoelectric device 1 includes a ceramic laminate 15 formed by laminating a plurality of piezoelectric ceramic layers 11 and a plurality of inner electrode layers 13 and 14 alternately and a pair of side electrodes 17 and 18 formed on side surfaces thereof. The inner electrode layers 13 and 14 are connected electrically to either of the side electrodes. The ceramic laminate 15 has absorbing portions 12 formed in slit-like areas recessed inwardly from the side surfaces thereof. The stress absorbing portions are easier to deform than the piezoelectric ceramic layers 11. Adjacent two of the inner electrode layers 13 and 14 interleaving the stress absorbing portion 12 therebetween are both connected electrically to the positive side electrode 17.

摘要翻译： 堆叠式压电装置1包括通过交替地层叠多个压电陶瓷层11和多个内部电极层13和14而形成的陶瓷层压体15和形成在其侧表面上的一对侧面电极17和18。 内电极层13和14电连接到任一侧电极。 陶瓷层叠体15具有从其侧面向内凹陷的狭缝状区域形成的吸收部12。 应力吸收部分比压电陶瓷层11更容易变形。彼此相邻的内部电极层13和14之间的两个内部电极层13和14两者都与正极侧电极17电连接。