发明申请
- 专利标题： PIEZOELECTRIC ACTUATOR AND AUDIO COMPONENTS
- 专利标题（中）： 压电致动器和音频元件
-
申请号： US13319872申请日： 2010-04-12
-
公开(公告)号： US20120119617A1公开(公告)日： 2012-05-17
- 发明人: Masatake Takahashi , Yasuhiro Sasaki , Yasuharu Onishi , Yukio Murata , Ukyo Mori , Jun Kuroda
- 申请人： Masatake Takahashi , Yasuhiro Sasaki , Yasuharu Onishi , Yukio Murata , Ukyo Mori , Jun Kuroda
- 申请人地址： JP Minato-ku, Tokyo
- 专利权人： NEC CORPORATION
- 当前专利权人： NEC CORPORATION
- 当前专利权人地址： JP Minato-ku, Tokyo
- 优先权： JP2009-114575 20090511
- 国际申请： PCT/JP2010/056501 WO 20100412
- 主分类号： G10K9/125
- IPC分类号： G10K9/125 ; H01L41/09 ; H01L41/053
摘要：
One object of the present invention is to an achieve increase of amplitude of vibrations and/or flattening of frequency dependence of the amplitude of a piezoelectric actuator. Piezoelectric actuator (100) has first piezoelectric vibrator (102), second piezoelectric vibrator (104), and vibrating membrane (106). First piezoelectric vibrator (102) includes first pedestal (116) and first piezoelectric element (112) connected to the first pedestal. Second piezoelectric vibrator (104) includes second pedestal (118) and second piezoelectric element (114) connected to the second pedestal. Vibrating membrane (106) has opening (108). First piezoelectric vibrator (102) is connected to one surface of vibrating membrane (106) straddling opening (108) of the vibrating membrane. Second piezoelectric vibrator (102) is connected to another surface of vibrating membrane (106) straddling opening (108) of the vibrating membrane.
公开/授权文献
- US08569930B2 Piezoelectric actuator and audio components 公开/授权日：2013-10-29