Cone loudspeaker
AssigneeGP Acoustics (UK) Limited
InventorJack Oclee-Brown
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Abstract
A loudspeaker comprising an acoustically radiating diaphragm comprising a generally frustoconical membrane having a narrow neck end and a wide mouth end, stiffening formations for stiffening the radiating membrane and an interface region by which the diaphragm is adapted to be driven; and a transducer comprising a voice coil mounted to drive the diaphragm via its interface region; wherein the interface region is located at the node of the first mode of vibration of the diaphragm.
Claims16
A loudspeaker comprising:
- an acoustically radiating diaphragm forming part of a moving diaphragm assembly and comprising a generally frustoconical membrane having a narrow neck end and a wide mouth end, stiffening formations for stiffening the radiating membrane and an interface region by which the diaphragm is adapted to be driven nodally;
- and
- a transducer comprising a voice coil mounted to drive the diaphragm via its interface region;
- wherein the interface region is located at a node of the first mode of vibration of the moving diaphragm assembly.
A loudspeaker diaphragm for radiating acoustically comprising a generally frustoconical membrane having a narrow neck end and a wide mouth end, stiffening formations for stiffening the radiating membrane and an interface region by which the diaphragm is adapted to be driven nodally, wherein the stiffening formations are arranged so as to locate a node of the first mode of vibration of the diaphragm at a location substantially co-incident with the interface region.
A method of designing an acoustically radiating loudspeaker diaphragm comprising a generally frustoconical membrane by computer modelling various arrangements of stiffening formations applied to the membrane to achieve a node of the first mode of vibration of the diaphragm at a location substantially coincident with the desired location of a nodally driven interface region by which the diaphragm is intended to be coupled to a transducer.
Dependencies are inferred from the claim text.