US 12,250,532 B2
Loudspeaker with inertial exciter comprising a magnet assembly suspended from a mounting frame
Fabian Vuine, Dendermonde (BE); and David Corynen, Dendermonde (BE)
Assigned to PSS BELGIUM NV, Dendermonde (BE)
Appl. No. 18/001,357
Filed by PSS BELGIUM NV, Dendermonde (BE)
PCT Filed May 19, 2021, PCT No. PCT/EP2021/063350
§ 371(c)(1), (2) Date Dec. 9, 2022,
PCT Pub. No. WO2021/254713, PCT Pub. Date Dec. 23, 2021.
Claims priority of application No. 2009203 (GB), filed on Jun. 17, 2020.
Prior Publication US 2023/0247370 A1, Aug. 3, 2023
Int. Cl. H04R 9/06 (2006.01); H04R 1/02 (2006.01)
CPC H04R 9/066 (2013.01) [H04R 1/025 (2013.01); H04R 2400/07 (2013.01); H04R 2400/11 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A loudspeaker comprising:
a mounting frame;
an acoustic radiator;
a drive unit, including:
a magnet assembly including a magnet unit configured to provide a magnetic field in an air gap, wherein the air gap extends around a movement axis of the drive unit; and
a coil assembly including:
an attachment portion which provides an attachment between the coil assembly and the acoustic radiator;
a voice coil;
a voice coil former which extends from the attachment portion into the air gap, wherein the voice coil is mounted to the voice coil former so that the voice coil sits in the air gap when the drive unit is at rest; and
a tubular member, which is positioned radially outwardly of the voice coil former with respect to the movement axis, and which overlaps the voice coil former along at least a portion of the movement axis; and
at least one drive unit suspension attached to the tubular member and a part of the magnet assembly positioned radially outwardly of the tubular member so that the acoustic radiator is suspended from the magnet assembly via the coil assembly by the at least one drive unit suspension;
wherein the magnet assembly is suspended from the mounting frame by at least one mounting frame suspension.