Microphone

摘要

When external pressure extremely increases, a waterproof vibration membrane tends to be resiliently deformed extremely toward the inside. However, an inward resilient deformation inhibiting member provided on the inner side of the waterproof vibration membrane with a space therebetween inhibits this extreme inward resilient deformation of the waterproof vibration membrane, whereby the waterproof vibration membrane is prevented from being ruptured or plastically deformed. On the other hand, when the internal pressure extremely increases, the waterproof vibration membrane tends to be resiliently deformed extremely toward the outside. However, an outward resilient deformation inhibiting member provided on the outer side of the waterproof vibration membrane with a space therebetween inhibits this extreme outward resilient deformation of the waterproof vibration membrane, whereby the waterproof vibration membrane is prevented from being ruptured or plastically deformed.

主权项

1. A microphone comprising:
a waterproof vibration membrane; a microphone element which receives a vibration as a sound from the waterproof vibration membrane; an outward resilient deformation inhibiting member which is provided on an outer side of the waterproof vibration membrane with a first space therebetween and inhibits outward resilient deformation of the waterproof vibration membrane; and a first spacer provided between the outward resilient deformation inhibiting member and the waterproof vibration membrane, the first spacer having an opening in an area thereof.