发明申请
- 专利标题: ACOUSTIC CONVERSION DEVICE
- 专利标题(中): 声音转换装置
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申请号: US13108489申请日: 2011-05-16
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公开(公告)号: US20110311090A1公开(公告)日: 2011-12-22
- 发明人: Tsutomu Nagumo , Koji Matsuda , Kenji Hiraiwa , Takayuki Ishii , Koji Nageno , Takeshi Hara , Takahiro Suzuki
- 申请人: Tsutomu Nagumo , Koji Matsuda , Kenji Hiraiwa , Takayuki Ishii , Koji Nageno , Takeshi Hara , Takahiro Suzuki
- 申请人地址: JP Tokyo
- 专利权人: SONY CORPORATION
- 当前专利权人: SONY CORPORATION
- 当前专利权人地址: JP Tokyo
- 优先权: JP2010-137896 20100617
- 主分类号: H04R1/00
- IPC分类号: H04R1/00
摘要:
An acoustic conversion device includes: a driving unit including a pair of magnets disposed so as to face each other, a yoke to which the pair of magnets are attached, a coil to which driving current is supplied, a vibrating portion which vibrates when driving current is supplied to the coil, and an armature disposed between the pair of magnets with the vibrating portion passed through the coil; and a diaphragm unit including a holding frame having an opening, a resin film adhered to the holding frame in a state covering the opening of the holding frame, a diaphragm held on the inner side of the holding frame in a state adhered to the resin film, and a beam portion of which the tip portion formed integrally with the diaphragm is combined with the vibrating portion of the armature, for propagating the vibration of the vibrating portion to the diaphragm.
公开/授权文献
- US08588456B2 Acoustic conversion device 公开/授权日:2013-11-19