发明公开
- 专利标题： SPEAKER
- 专利标题（中）： 扬声器
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申请号： EP06797821.3申请日： 2006-09-12
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公开(公告)号： EP1793648A1公开(公告)日： 2007-06-06
- 发明人: FUNAHASHI, Osamu c/o Matsushita El. Ind. Co., Ltd.
- 申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
- 申请人地址： 1006, Oaza Kadoma, Kadoma-shi, Osaka 571-8501 JP
- 专利权人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
- 当前专利权人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
- 当前专利权人地址： 1006, Oaza Kadoma, Kadoma-shi, Osaka 571-8501 JP
- 代理机构： Grünecker, Kinkeldey, Stockmair & Schwanhäusser Anwaltssozietät
- 优先权： JP2005279703 20050729
- 国际公布： WO2007037115 20070405
- 主分类号： H04R9/02
- IPC分类号： H04R9/02 ; H04R9/04
摘要：
A damper, which is an element of a speaker and suppresses the rolling of a voice coil unit, includes a corrugated structure portion at its inner periphery and a leaf spring at its outer periphery. By coupling the corrugated structure portion to the voice coil unit and coupling the leaf spring to the frame, the distortion of a speaker can be reduced and the driving efficiency can be improved.
公开/授权文献
- EP1793648B1 SPEAKER 公开/授权日：2012-05-16
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