US 11,889,258 B2 · Elliptical ring radiator diaphragm, tweeter and damping method

Abstract

A loudspeaker driver or tweeter (e.g., 100, 200 or 300) having a voice coil connected with a loudspeaker diaphragm (e.g., 106, 206 or 306), having a substantially circular diaphragm portion which is connected with or rests upon a voice coil attachment segment (e.g., 104, 204, 304). The diaphragm also includes a first central elliptical (non-circular-shaped) inner roll portion (e.g., 112, 212, 312) defining a central recessed area and a second, outer elliptical (non-circular-shaped) roll portion (e.g., 108, 208, 308) so the central portion and the outer roll portion that have substantially elliptical edge circumferences with substantially circular central peripheral edges to define diaphragm segments with a varying radial Chord lengths having non-uniform diameter dimensions (inside diameter to outside diameter) and when in use, the excursion of the diaphragm is controlled such that any breakup modes are minimized and the associated resonances are minimized.

Claims22

Dependent claims

A loudspeaker driver or tweeter comprising:

a chassis;
and
a magnet system defining an annular air gap for a voice coil;
and
a loudspeaker diaphragm connected with the voice coil, the loudspeaker diaphragm comprising:
a substantially circular diaphragm portion which connects to the voice coil at a voice coil attachment segment and the chassis that includes an annular, arch-profiled strip area;
a first roll portion having a substantially circular first outer edge and an elliptical, non-circular first inner edge defining a central recessed area, the central recessed area having an elliptical major or long axis and a minor or short axis, the central recessed area being rigidly fixed to one of the magnet system and the chassis;
a second roll portion defining an outer area that is rigidly fixed to one of the magnet system and the chassis, the second roll portion having a substantially circular second inner edge and an elliptical, non-circular second outer edge having a major and minor axis,
wherein the substantially circular first outer edge of the first roll portion and the substantially circular second inner edge of the second roll portion connect to the voice coil attachment segment.

6 more elements

A loudspeaker driver or tweeter diaphragm having a substantially circular diaphragm portion which is connected with or rests upon a voice coil attachment segment, said loudspeaker driver or tweeter diaphragm comprising:

an inner first roll portion having a substantially circular first outer edge and an elliptical, non-circular first inner edge defining a central recessed area having an elliptical major or long axis and a minor or short axis;
and
an outer second roll portion having a substantially circular second inner edge and an elliptical, non-circular second outer edge defining an outer area,
wherein the substantially circular first outer edge of the inner first roll portion and the substantially circular second inner edge of the outer second roll portion connect to or rest on the voice coil attachment segment.

1 more element

Dependencies are inferred from the claim text.

Elliptical ring radiator diaphragm, tweeter and damping method

Life of this patent

Elliptical ring radiator diaphragm, tweeter and damping method

Life of this patent

Abstract

Claims22