Speaker device

Details Speaker device Speaker device

2006-06-08

2010-06-29

Ni, Suhan (Department: 2614)

Electrical audio signal processing systems and devices

Electro-acoustic audio transducer

Electromagnetic

C412S026000, C412S026000

Reexamination Certificate

active

07747034

ABSTRACT:
A speaker device includes a voice coil bobbin around which a voice coil is wound, and a connecting member mounted on an outer peripheral wall of the voice coil bobbin. Plural ventilation holes are provided on a side wall of the voice coil bobbin with constant spaces, and plural ventilation holes are provided at a cylindrical part of the connecting member with constant spaces. Particularly, in this speaker device, each position of the ventilation holes of the connecting member coincides with each position of the ventilation holes of the voice coil bobbin in such a state that the connecting member is mounted on the outer peripheral wall of the voice coil bobbin.

REFERENCES:
patent: 4438297 (1984-03-01), Kawamura
patent: 6095280 (2000-08-01), Proni
patent: 7177439 (2007-02-01), Tardo et al.

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