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    • 2. 发明申请
    • SOUND GENERATOR AND SOUND-GENERATING APPARATUS
    • 声发生器和声音发生装置
    • US20140098978A1
    • 2014-04-10
    • US14111884
    • 2012-06-29
    • Shuichi FukuokaNoriyuki KushimaHiroshi NinomiyaTakeshi HirayamaKenji Yamakawa
    • Shuichi FukuokaNoriyuki KushimaHiroshi NinomiyaTakeshi HirayamaKenji Yamakawa
    • H04R17/00
    • H04R17/00H04R1/26H04R17/02H04R2201/401
    • There are provided a sound generator with less peaks and dips in sound-pressure frequency characteristics, and a sound-generating apparatus which employs the sound generator. A sound generator and a sound-generating apparatus using the same are provided, wherein the sound generator includes at least a vibration plate, and a plurality of piezoelectric elements attached to the vibration plate so as to be spaced from each other to cause the vibration plate to vibrate. The plurality of piezoelectric elements includes piezoelectric elements having at least two different thicknesses. The piezoelectric elements having at least two different thicknesses are disposed in two directions that cross each other in a main surface of the vibration plate. Accordingly, it is possible to achieve a sound generator, as well as a sound-generating apparatus which have less peaks and dips in sound-pressure frequency characteristics.
    • 提供了声压频率特性较少的峰值和下降的声音发生器,以及采用该声音发生器的发声装置。 提供了一种发声器和使用其的声音发生装置,其中,声发生器至少包括振动板和安装在振动板上的多个压电元件,以便彼此间隔开以产生振动板 振动 多个压电元件包括​​具有至少两个不同厚度的压电元件。 具有至少两个不同厚度的压电元件设置在振动板的主表面上彼此交叉的两个方向上。 因此,可以实现声压发生器以及在声压频率特性中具有较少峰值和下降的声音产生装置。