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    • 9. 发明公开
    • Loudspeaker apparatus
    • Lautsprechergerät
    • EP2079251A2
    • 2009-07-15
    • EP08253807.5
    • 2008-11-25
    • Sony Corporation
    • Suzuki, NobukazuUryu, MasaruOhashi, YoshioTanaka, YukioNishigori, Nobuyuki
    • H04R23/00
    • H04R15/00H04R1/2803H04R1/2896H04R1/40
    • A loudspeaker apparatus includes an acoustic diaphragm; a support member having a housing, which is a hole in a surface of the support member facing the acoustic diaphragm; a magnetostrictive actuator having a magnetostrictor and a drive rod coupled to an end of the magnetostrictor, the magnetostrictive actuator being inserted into the housing such that the drive rod contacts the acoustic diaphragm, the magnetostrictive actuator applying vibration to the acoustic diaphragm; and a spring inserted into the housing from a position opposite to a position of the drive rod of the magnetostrictive actuator, the spring pressing the magnetostrictive actuator toward the acoustic diaphragm and applying a load to the magnetostrictor.
    • 扬声器装置包括声膜; 支撑构件,其具有壳体,所述壳体是所述支撑构件的面向所述声膜的表面中的孔; 具有磁致伸缩致动器和耦合到磁致伸缩体的端部的驱动杆,磁致伸缩致动器被插入到壳体中,使得驱动杆接触声膜,磁致伸缩致动器向声膜施加振动; 以及从与磁致伸缩致动器的驱动杆的位置相对的位置插入到壳体中的弹簧,弹簧将磁致伸缩致动器压向隔膜并向磁致伸缩器施加负载。
    • 10. 发明公开
    • Portable audio drive unit
    • Tragbare Audio-Antriebseinheit
    • EP1773096A2
    • 2007-04-11
    • EP06021100.0
    • 2006-10-06
    • SONY CORPORATION
    • Suzuki, NobukazuUryu, MasaruOhashi, Yoshio
    • H04R15/00
    • H04R15/00
    • A portable audio drive unit (100) has a case (120), an audio signal output section that outputs an audio signal, and a magnetostrictive actuator (110) that drives on the basis of the audio signal output from the audio output section. The magnetostrictive actuator (110) includes a displacement transfer section. The displacement transfer section has a driving rod (110a). The displacement transfer section transfers a displacement of the driving rod (110a). The magnetostrictive actuator (110) is arranged in the case with the displacement transfer section being protruded from the case or being retractable into the case.
    • 便携式音频驱动单元(100)具有壳体(120),输出音频信号的音频信号输出部分和基于从音频输出部分输出的音频信号驱动的磁致伸缩致动器(110)。 磁致伸缩致动器(110)包括位移传递部分。 位移传递部具有驱动杆(110a)。 位移传递部分传递驱动杆(110a)的位移。 磁致伸缩致动器(110)布置在壳体中,其中位移传递部分从壳体突出或可缩回到壳体中。