发明名称 |
Electroacoustic transducer with improved shock resistance |
摘要 |
A transducer which is particularly suitable for hearing aids is set forth which has improved resistance to mechanical shock. The transducer includes a coil having a tunnel, a magnetic member with a pair of magnets defining an air gap and an armature extending through the tunnel and into the air gap. The coil is rotated with respect to the magnetic member in a manner such that the coil forms a stop for the armature, thus preventing excessive deflection of the armature leg in the occurrence of a shock. The armature may also be provided with expanded edge portions which assist in limiting its deflection.
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申请公布号 |
US6075870(A) |
申请公布日期 |
2000.06.13 |
申请号 |
US19970980835 |
申请日期 |
1997.12.01 |
申请人 |
MICROTRONIC B.V. |
发明人 |
GESCHIERE, ONNO;DOLLEMAN, HENDRIK;OBBINK, HUIB GROOT;VAN HALTEREN, AART ZEGER |
分类号 |
H04R11/00;(IPC1-7):H04R25/00 |
主分类号 |
H04R11/00 |
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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