会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 13. 发明授权
    • Piezoelectric electro-acoustic transducer
    • 压电式电声换能器
    • US06965680B2
    • 2005-11-15
    • US10409573
    • 2003-04-08
    • Masakazu YamauchiTetsuo TakeshimaManabu Sumita
    • Masakazu YamauchiTetsuo TakeshimaManabu Sumita
    • H01L41/083H01L41/09H04R17/00H04R25/00
    • H04R31/003H04R1/06H04R17/00H04R2307/023
    • A piezoelectric electro-acoustic transducer includes a piezoelectric vibration plate having a plurality of piezoelectric ceramic layers laminated to each other with an internal electrode being interposed between the ceramic layers, and main surface electrodes provided on the front and back surfaces thereof, whereby area bending vibration is produced by applying an AC signal between the main surface electrodes and the internal electrode, respectively, a resin film having a size that is greater than the piezoelectric vibration plate and having the piezoelectric vibration plate bonded substantially to the central portion of the surface thereof, and a casing which accommodates the piezoelectric vibration plate and the resin film. The piezoelectric vibration plate has an area of about 40% to about 70% of that of the resin film. The inner peripheral surface of the case is provided with a supporting portion having a frame shape that is larger than that of the piezoelectric vibration plate, and the outer peripheral portion of the resin film having no piezoelectric vibration plate bonded thereto is supported by the supporting portion of the case.
    • 一种压电式电声换能器包括压电振动板,其具有彼此层压的多个压电陶瓷层,内部电极插入在陶瓷层之间,主表面电极设置在其前表面和后表面上,由此区域弯曲振动 分别通过在主表面电极和内部电极之间施加AC信号,制造尺寸大于压电振动板并具有压电振动板的树脂膜,该压电振动板基本上与其表面的中心部分结合, 以及容纳压电振动板和树脂膜的壳体。 压电振动板的面积为树脂薄膜的40%〜70%左右。 壳体的内周面设置有具有比压电振动板大的框架形状的支撑部分,并且没有结合压电振动板的树脂膜的外周部分被支撑部分支撑 的情况。