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    • 10. 发明申请
    • Moisture resistant microphone
    • 防潮麦克风
    • US20070003081A1
    • 2007-01-04
    • US11437874
    • 2006-05-19
    • Sunder RamRichard GableMichael IpsenIan Day
    • Sunder RamRichard GableMichael IpsenIan Day
    • H04R25/00
    • H04R19/016H04R1/086H04R25/602H04R25/652H04R25/654H04R2225/023H04R2410/00
    • Embodiments of the invention provide microphone assemblies which are resistant to moisture. One embodiment provides a microphone assembly comprising a housing, a diaphragm disposed in the housing and a backplate disposed in the housing. The housing includes a sound inlet port for the entry of sound waves. The backplate includes a surface and an electret portion having an embedded permanent charge. The diaphragm is configured to vibrate in response to sound waves entering the housing. The vibrations of the diaphragm interact with the electret portion to produce an electrical signal associated with the sound waves entering the housing. A hydrophobic coating can be applied to one or both of the backplate and diaphragm surfaces so as to reduce condensation and/or wetting of the backplate. This minimizes neutralization of an electric field of the backplate surface from condensation preserving the field and the function of the microphone in humid environments.
    • 本发明的实施例提供了耐潮湿的麦克风组件。 一个实施例提供一种麦克风组件,其包括壳体,设置在壳体中的隔膜和设置在壳体中的背板。 壳体包括用于输入声波的声音入口。 背板包括具有嵌入的永久电荷的表面和驻极体部分。 隔膜被构造成响应于进入壳体的声波而振动。 隔膜的振动与驻极体部分相互作用以产生与进入壳体的声波相关联的电信号。 可以将疏水涂层施加到背板和隔膜表面中的一个或两个上,以减少背板的冷凝和/或润湿。 这最大限度地减少了背光表面电场的中和,从而保持了潮湿环境中麦克风的场和功能。