Audio voice coil adaptor ring
First Claim
1. A loudspeaker, comprising:
- a flame, a voice coil including a former carrying a wire winding, a diaphragm and a lower suspension;
a motor structure including a top plate, a back plate, a magnet connected between said top plate and back plate, and a pole piece concentrically disposed within a bore formed by said top plate and said magnet defining a magnetic gap therebetween, said top plate being formed with a leg extending vertically upwardly from said magnet and spaced from said pole piece;
an adaptor ring including a wall having a first end, a second end, an inner surface defining a hollow interior and an outer surface spaced from said inner surface;
said former of said voice coil being received within said hollow interior of said wall of said adaptor ring and being connected to said inner surface of said wall, said diaphragm and said lower suspension being connected between said frame and outer surface of said wall;
said wall of said adaptor ring being formed with at least one passage located in between said inner surface and said outer surface thereof for venting air.
1 Assignment
0 Petitions
Accused Products
Abstract
A voice coil adaptor ring and loudspeaker system of the moving coil type including a cone diaphragm supported by a frame, a voice coil former for supporting a voice coil, and a lower suspension for securing and centering the voice coil former in a magnetic gap while it is displaced by a magnetic circuit. The voice coil adaptor ring is mounted over the voice coil former and comprises a substantially cylindrical sleeve having a lower diameter for fitting over the top plate; at least one ledge extending outward from said sleeve for supporting the cone and lower suspension; an inherent gap for receiving epoxies; and a plurality of venting passages in fluid communication with a cap volume defined by the cone and dust cap for venting hot air from the cap volume.
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Citations
11 Claims
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1. A loudspeaker, comprising:
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a flame, a voice coil including a former carrying a wire winding, a diaphragm and a lower suspension; a motor structure including a top plate, a back plate, a magnet connected between said top plate and back plate, and a pole piece concentrically disposed within a bore formed by said top plate and said magnet defining a magnetic gap therebetween, said top plate being formed with a leg extending vertically upwardly from said magnet and spaced from said pole piece; an adaptor ring including a wall having a first end, a second end, an inner surface defining a hollow interior and an outer surface spaced from said inner surface; said former of said voice coil being received within said hollow interior of said wall of said adaptor ring and being connected to said inner surface of said wall, said diaphragm and said lower suspension being connected between said frame and outer surface of said wall; said wall of said adaptor ring being formed with at least one passage located in between said inner surface and said outer surface thereof for venting air. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification