US 12,464,291 B1
Voice coil array speaker
John E. Miesner, Fairfax, VA (US)
Assigned to The United States of America, as represented by the Secretary of the Navy, Washington, DC (US)
Filed by The United States of America, as represented by the Secretary of the Navy, Arlington, VA (US)
Filed on Feb. 9, 2024, as Appl. No. 18/437,486.
Int. Cl. H04R 9/06 (2006.01); H04R 9/02 (2006.01)
CPC H04R 9/06 (2013.01) [H04R 9/025 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A voice coil array speaker comprising:
a speaker assembly, the speaker assembly comprising,
a speaker frame,
a stationary base plate connected to the speaker frame,
a diaphragm connected to the speaker frame and configured to be capable of axial movement, and
a heat conducting front plate connected to the diaphragm, and
thermal bridges configured to conduct heat from the heat conducting front plate to the speaker frame;
a coil assembly connected to the heat conducting front plate, the coil assembly comprising an array of coils wound around coil formers; and
a magnet assembly attached to the stationary base plate, the magnet assembly comprising an array of laterally and vertically polarized magnets in contact with flux concentrators,
wherein the array of coils are connected such that the direction of current flow alternates between clockwise and counterclockwise moving laterally across the array.