Voice coil of speaker

Details Voice coil of speaker Voice coil of speaker

2006-05-23

2006-05-23

Ni, Suhan (Department: 2646)

Electrical audio signal processing systems and devices

Electro-acoustic audio transducer

Electromagnetic

C381S400000

Reexamination Certificate

active

07050601

ABSTRACT:
A speaker is provided in which a coil wire can withstand a large amplitude motion caused by vibration of a voice coil bobbin and a diaphragm, and in which a bias of weight of the voice coil bobbin and the diaphragm caused by a constitution of the coil wire is reduced to a minimum. The coil wire, winding around the voice coil bobbin, is composed of a core thread having a bending strength and a heat-resistance and is wound by a conductive material. An end of the coil wire is directly connected to an external input terminal attached to a frame.

REFERENCES:
patent: 6922477 (2005-07-01), Ikeyama
patent: 45-22391 (1970-09-01), None
patent: 6-77043 (1994-03-01), None
patent: 6-209497 (1994-07-01), None
patent: 9-246080 (1997-09-01), None
patent: 11-213775 (1999-08-01), None
patent: 2001-61200 (2001-03-01), None

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