发明授权
- 专利标题： Speaker
- 专利标题（中）： 扬声器
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申请号： US11667112申请日： 2006-01-19
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公开(公告)号： US08098876B2公开(公告)日： 2012-01-17
- 发明人: Kiyoshi Yamagishi
- 申请人： Kiyoshi Yamagishi
- 申请人地址： JP Osaka
- 专利权人： Panasonic Corporation
- 当前专利权人： Panasonic Corporation
- 当前专利权人地址： JP Osaka
- 代理机构： Wenderoth, Lind & Ponack, L.L.P.
- 优先权： JP2005-022421 20050131
- 国际申请： PCT/JP2006/000689 WO 20060119
- 国际公布： WO2006/080221 WO 20060803
- 主分类号： H04R25/00
- IPC分类号： H04R25/00
摘要：
A speaker includes a magnetic circuit 1 that is formed in the center of a frame 5, a voice coil 6 that is inserted in a magnetic gap of the magnetic circuit 1, a damper 7 that is fixed to the frame 5 and the voice coil 6, and a vibrating plate 8 that is fixed to the frame 5 and the voice coil 6. An opening 10 is provided in a bobbin 12 of the voice coil 6. The area of the opening 10 is 0.3% or less of the radial cross-sectional area of the bobbin 12 of the voice coil 6.
公开/授权文献
- US20080049966A1 Speaker 公开/授权日：2008-02-28
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