发明申请
US20130043766A1 ACTUATOR, PIEZOELECTRIC ACTUATOR, ELECTRONIC DEVICE, AND METHOD FOR ATTENUATING VIBRATION AND CONVERTING VIBRATION DIRECTION
有权
致动器，压电致动器，电子设备以及用于衰减振动和转换振动方向的方法
- 专利标题： ACTUATOR, PIEZOELECTRIC ACTUATOR, ELECTRONIC DEVICE, AND METHOD FOR ATTENUATING VIBRATION AND CONVERTING VIBRATION DIRECTION
- 专利标题（中）： 致动器，压电致动器，电子设备以及用于衰减振动和转换振动方向的方法
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申请号： US13513953申请日： 2010-12-14
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公开(公告)号： US20130043766A1公开(公告)日： 2013-02-21
- 发明人: Masatake Takahashi , Yasuharu Onishi , Yasuhiro Sasaki , Shigeki Shinoda , Junichiro Mataga , Ukyo Mori , Jun Kuroda , Yukio Murata
- 申请人： Masatake Takahashi , Yasuharu Onishi , Yasuhiro Sasaki , Shigeki Shinoda , Junichiro Mataga , Ukyo Mori , Jun Kuroda , Yukio Murata
- 申请人地址： JP Tokyo
- 专利权人： NEC CORPORATION
- 当前专利权人： NEC CORPORATION
- 当前专利权人地址： JP Tokyo
- 优先权： JP2009-283894 20091215
- 国际申请： PCT/JP2010/072489 WO 20101214
- 主分类号： H01L41/053
- IPC分类号： H01L41/053 ; H02K41/02 ; H01L41/09
摘要：
A viscoelastic body is interposed between a vibrating membrane vibrating in association with a piezoelectric vibrator composed of a piezoelectric element and a base and a support member supporting the vibrating membrane. The viscoelastic body attenuates vibration transmitted from the support member to the vibrating membrane and converts vibration of the vibrating membrane in the surface direction parallel to its main surfaces to vibration of the vibrating membrane in the direction nearly perpendicular to the surface direction. The vibrating membrane is annular with an opening at the center, and the base is joined to the vibrating membrane coaxially with opening.
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