Loudspeaker diaphragm provided with a rear load

Details Loudspeaker diaphragm provided with a rear load Loudspeaker diaphragm provided with a rear load

1990-09-04

1992-09-01

Hix, L. T.

Acoustics

Plural diaphragm sound sources

181154, 181163, 181172, H05K 500

Patent

active

051431696

ABSTRACT:
The present invention relates to a loudspeaker diaphragm which is provided with a rear load and the vibration characteristic of which is improved in that the work to be performed for compressing the air behind the loudspeaker diaphragm is reduced. For this purpose, the loudspeaker diaphragm is provided with openings so that the air located behind the loudspeaker diaphragm can escape. At the same time, the introduction of the openings causes a decoupling of the vibrating diaphragm parts with respect to the frequency response when the loudspeaker diaphragm and the openings are suitably dimensioned, so that it is predominantly the inner part of the loudspeaker diaphragm which vibrates in the case of high notes, while the entire loudspeaker diaphragm vibrates in the case of low notes.

REFERENCES:
patent: 2022060 (1934-08-01), Swickard
patent: 3201529 (1965-08-01), Surh
patent: 3772466 (1973-11-01), Hossbach
patent: 4477699 (1984-10-01), Wada et al.
patent: 4582163 (1986-04-01), Catthoor

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