发明名称 |
Moving-coil electrodynamic motor for a loudspeaker, loudspeaker and pole piece |
摘要 |
The invention relates to a moving-coil electrodynamic motor and a loudspeaker. A moving-coil includes a winding with a given number of turns. A motor comprises a magnet arranged between a front pole piece and a rear pole piece. The front pole piece and the rear pole piece enclose a magnetic field in a gap and the moving coil is arranged in the gap. The gap may include a groove arranged essentially parallel to the turns. The coil has a height less than or equal to the height of the gap and the groove forms a recessed zone with an internal ring made from electrically conducting material.
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申请公布号 |
US7283642(B2) |
申请公布日期 |
2007.10.16 |
申请号 |
US20050504811 |
申请日期 |
2005.04.05 |
申请人 |
HARMAN INTERNATIONAL INDUSTRIES, INCORPORATED |
发明人 |
MILOT GILLES;MALBOS FRANCOIS |
分类号 |
H04R25/00;H04R9/02 |
主分类号 |
H04R25/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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