Methods and apparatus for dissipating heat in a voice coil
AssigneePeavey Electronics Corporation
InventorsTimothy Bryan Tardo, Hartley D. Peavey
Life of this patent
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Abstract
The present invention is directed to methods and apparatus for dissipating heat in a voice coil of a loudspeaker, where at least one of: a bobbin having a substantially cylindrical shaped wall member is operable to support the voice coil, and the wall member includes at least one aperture operable to provide thermal communication from the voice coil through the wall member; and a heatsink is coupled to an outer surface of a bobbin and is in thermal communication with the voice coil.
Claims40
A loudspeaker assembly, comprising:
- a voice coil;
- and
- a bobbin having a wall member operable to support the voice coil, the wall member including at least one aperture operable to provide thermal communication from the voice coil through the wall member.
An apparatus, comprising:
- a bobbin having a wall member including an outer surface operable to support a voice coil of a loudspeaker and an inner surface defining an inner volume;
- and
- a heatsink coupled to the outer surface of the bobbin and being in thermal communication with the voice coil.
An apparatus, comprising:
- a bobbin having a wall member including an outer surface operable to support a voice coil of a loudspeaker and an inner surface defining an inner volume;
- and
- a heatsink coupled to the inner surface of the substantially cylindrical shaped wall member of the bobbin and being in thermal communication with the voice coil, wherein the heatsink includes a plurality of fins extending axially along and radially inward from the inner surface of the bobbin such that axial movement of the bobbin forces fluids within the inner volume of the bobbin to carry heat away from the heatsink.
An apparatus, comprising:
- a bobbin having a substantially cylindrical shaped wall member including an outer surface operable to support a voice coil of a loudspeaker and an inner surface defining an inner volume;
- a pole disposed at least partially within the inner volume of the voice coil that is operable to direct a magnetic flux therethrough, the pole including an aperture extending therethrough that is in axial alignment with the bobbin and the voice coil;
- and
- a heatsink coupled to an inner surface of the aperture of the pole, wherein the heatsink includes a plurality of fins extending axially along and radially inward from the inner surface of the aperture such that axial movement of the bobbin forces air to carry heat away from the heatsink.
A method, comprising providing thermal communication between a inner part of a voice coil of a loudspeaker and an inner volume of a bobbin by way of at least one aperture, the bobbin including a wall member having an outer surface operable to support the voice coil and an inner surface defining the inner volume, the wall member including the at least one aperture.
Dependencies are inferred from the claim text.