Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Electromagnetic
Patent
1998-03-02
2000-06-06
Le, Huyen
Electrical audio signal processing systems and devices
Electro-acoustic audio transducer
Electromagnetic
381400, 381410, 381420, H04R 2500
Patent
active
060728868
ABSTRACT:
In an electroacoustic transducer (1) including a substantially hollow cylindrical magnet system (9) which is substantially centro-symmetrical with respect to a transducer axis (2), a diaphragm (17) and a voice coil (16) connected to the diaphragm (17) having two coil leads (20), and two contact terminals which, viewed in the direction of the transducer axis (2), are disposed inside the magnet system (9) and are each connected to one coil lead (20), the contact terminals are spring contacts (21, 22) which are formed with at least one bend and are preferably U-shaped, having two limbs (23, 24) extending transversely to the transducer axis (2) and including a first limb (23), which is mechanically connected to a contact holder (26) of the transducer (21), and a second limb (24) having contact faces (25) which are movable parallel to the transducer axis (2), the contact faces (25) of both spring contacts (21, 22) having different radial distances from the transducer axis (2).
REFERENCES:
patent: 4508941 (1985-04-01), Wiggins
patent: 5748760 (1998-05-01), Button
Frasl Ewald
Klein Erich
Ruberl Ernst
Goodman Edward W.
Le Huyen
U.S. Philips Corporation
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