公开(公告)号：US06960868B2

公开(公告)日：2005-11-01

申请号：US10759110

申请日：2004-01-20

申请人： Mitsunori Ishimasa ,  Keiichi Kami ,  Tetsuo Takeshima ,  Yuk Yokoi

发明人： Mitsunori Ishimasa ,  Keiichi Kami ,  Tetsuo Takeshima ,  Yuk Yokoi

IPC分类号： H04R17/00 ,  B06B1/06 ,  G10K9/12 ,  G10K9/122 ,  H01L41/053 ,  H01L41/08 ,  H04R31/00

CPC分类号： B06B1/0603 ,  G10K9/122

摘要： A piezoelectric electro-acoustic transducer includes a substantially rectangular piezoelectric diaphragm, a casing having a support unit for supporting four corners of the piezoelectric diaphragm, terminals fixed to the casing such that an internal connection portion of the terminal is exposed in the vicinity of the support unit, a first elastic adhesive for coating between the external periphery of the piezoelectric diaphragm and the internal connection portion of the terminal therewith, a conductive adhesive for coating between electrodes of the piezoelectric diaphragm and the internal connection portion of the terminal via the upper surface of the first elastic adhesive therewith, and a second elastic adhesive for sealing the external periphery of the piezoelectric diaphragm and the internal periphery of the casing, and a cradle provided in the internal periphery of the casing as well as below the piezoelectric diaphragm in the vicinity that is coated with the first elastic adhesive for forming a gap for stopping flow of the first elastic adhesive at a position lower than the support unit as well as between the upper surface of the cradle and the bottom surface of the piezoelectric diaphragm.

摘要翻译： 一种压电式电声换能器，包括：大致矩形的压电振动膜;壳体，具有用于支撑所述压电振动板的四个角部的支撑单元;固定于所述壳体的端子，使得所述端子的内部连接部在所述支撑体的附近露出; 单元，用于在压电振动膜的外周和端子的内部连接部分之间涂覆的第一弹性粘合剂，用于在压电振动板的电极和端子的内部连接部分之间涂覆的导电粘合剂， 第一弹性粘合剂，以及用于密封压电振动板的外周和壳体的内周的第二弹性粘合剂，以及设置在壳体的内周以及压电振动膜的下方的支架，附近 涂有第一弹性粘合剂 用于形成用于阻止第一弹性粘合剂在低于支撑单元的位置以及在支架的上表面和压电隔膜的底表面之间的流动的间隙。