Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Having electrostatic element
Patent
1995-08-21
1996-12-31
Tran, Sinh
Electrical audio signal processing systems and devices
Electro-acoustic audio transducer
Having electrostatic element
381192, 29594, H04R 2500, H04R 3100
Patent
active
055902103
ABSTRACT:
A loudspeaker capable or reliably realizing a repulsion magnetic circuit without using adhesive agent, improving the reliability of the loudspeaker, and facilitating the adjustment of sound quality and antiheat, and a method of assembling a loudspeaker easily and safely. A structure of a loudspeaker including a repulsion magnetic circuit formed by two magnets with the same polarity being faced with each other and by a plate made of magnetic material such as iron and interposed between the two magnets, and a voice coil disposed in a magnetic field at the outer circumferential area of the plate, wherein a support shaft is formed on a holder for holding magnetic circuit components, the magnets and plate are disposed on the support shaft with position alignment, the support shaft is formed with a mount for a fastening member such as a thread, a guide hole, a projection, and a recess, and the magnets and plate are fastened and fixed by coupling the fastening member to the mount.
REFERENCES:
patent: 3201529 (1965-08-01), Surh
patent: 3898393 (1975-08-01), Digre
patent: 4256930 (1981-03-01), Garner et al.
patent: 4965839 (1990-10-01), Elieli
Matsuo Shinta
Sakamoto Yoshio
Ferguson Jr. Gerald J.
Kabushiki Kaisha Kenwood
Robinson Eric J.
Tran Sinh
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