Electret microphone

一种驻极体麦克风

Abstract

本实用新型提供了一种驻极体麦克风,包括外壳、收容于所述外壳内的电路板、与所述电路板电性连接的背极板、邻近所述背极板的振膜、用作所述振膜与背极板之间进行电性隔离的垫片,所述振膜包括绷膜环和贴设在绷膜环一面被绷紧的膜片,其还包括贴设在绷膜环另一面带有通孔的隔板。所述隔板与外壳共同作用,从而可以实现良好的防水防尘抗湿气防高温功能。
The utility model provides an electret microphone, which comprises a housing, a circuit board accommodated in the housing, a back plate electrically connected with the circuit board, a vibrating diaphragm adjacent to the back plate and a gasket for performing electrical isolation between the vibrating diaphragm and the back plate, wherein the vibrating diaphragm comprises a diaphragm stretching ring, a stretched diaphragm adhered to one surface of the diaphragm stretching ring and a partition board adhered to the other surface of the diaphragm stretching ring and provided with a through hole. The utility model has the advantage that good waterproof, dustproof, moisture resistant and high temperature resistant functions can be realized by virtue of the combined action of the partition board and the housing.

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    CN-104113793-AOctober 22, 2014瑞声声学科技(深圳)有限公司麦克风的封装方法