Loudspeaker and diaphragm therefor
AssigneeGP Acoustics (UK) Limited
InventorsMark Alexander Dodd, Jack Anthony Oclee-Brown, Julia Davidson
Life of this patent
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Abstract
A loudspeaker radiating diaphragm can be stiffened to help increase the breakup frequency to above the working frequency range of the driver concerned, by forming it of a molded part and an attached formed part. The molded part is a radiating surface with stiffening ribs. The formed part is a thin surface of high modulus material, attached to the rear of the ribs. The overall structure can have significantly higher stiffness than either of the two parts. This helps in designing a loudspeaker driver that does not breakup within its working frequency range.
Claims15
A diaphragm for a loudspeaker, comprising:
- a radiating surface from which acoustic waves can be projected;
- a plurality of ribs, projecting away from the radiating surface in a direction transverse to the radiating surface, the radiating surface and the ribs being formed integrally from a single moulding;
- and
- at least one stiffening member, comprising a surface connected to the ribs and extending substantially parallel to and alongside the radiating surface, wherein the material forming the radiating surface has a first stiffness, and wherein the stiffening member comprises a material having a second, greater stiffness.
Dependencies are inferred from the claim text.