Electret microphone



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