发明名称 SPEAKER
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.
申请公布号 EP1793648(A1) 申请公布日期 2007.06.06
申请号 EP20060797821 申请日期 2006.09.12
申请人 MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. 发明人 FUNAHASHI, OSAMU
分类号 H04R9/04 主分类号 H04R9/04
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