Condenser microphone unit

Details Condenser microphone unit Condenser microphone unit

2007-12-10

2011-11-15

Nguyen, Ha Tran T (Department: 2829)

Electrical audio signal processing systems and devices

Electro-acoustic audio transducer

Housed microphone

Reexamination Certificate

active

08059848

ABSTRACT:
In a condenser microphone unit in which a microphone capsule and a capsule support are connected to each other via a screwed ring coupler, shield is maintained stably regardless of the degree of tightening of the ring coupler. On one end side on which a microphone cord30is drawn into the capsule support20, a shield covering wire exposure part33ais formed. Also, a shield cup40including a small-diameter cylindrical part41and a large-diameter cylindrical part42is arranged in the capsule support20, the small-diameter cylindrical part41is fixed to the shield covering wire exposure part33aby staking, a flange part421having a diameter almost equal to the outside diameter of a circuit board21is formed on the surface on which the large-diameter cylindrical part42is in contact with the circuit board21, and a staking allowance274that goes around to the lower surface side of the flange part421is connectingly provided on the lower edge side of the ring coupler270, by which the circuit board21and the flange part421are integrated with each other by staking the staking allowance274.

REFERENCES:
patent: 2006/0045302 (2006-03-01), Akino et al.

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