Patent ID: 9025805
Filing Date: 2015-05-05
Classification: H04R

Abstract:
1. A condenser microphone comprising: a condenser microphone unit having a rear acoustic terminal; a unit case that supports the condenser microphone unit, has an internal space in communication with the rear acoustic terminal, and has an opening in a peripheral wall in communication with the internal space; a volume restrictor that is disposed in the internal space and reduces the volume of the internal space by partitioning the internal space; a circuit board that is disposed in the internal space partitioned by the volume restrictor and surrounded by the volume restrictor; and a rigid conductor that electrically connects a signal output terminal of the condenser microphone unit and the circuit board, wherein, the circuit board is disposed such that a surface of the circuit board intersects a center axis of the unit case, the rigid conductor is supported in such a manner that the rigid conductor slides along the volume restrictor, and an elastic conductor is compressed between the rigid conductor and the circuit board or between the rigid conductor and the signal output terminal.