Improvements in or relating to loudspeakers
OwnerCharles D. Lythinventor
Life of this patent
Estimating the term…
Abstract
A chassis for a loudspeaker assembly comprising a diaphragm and a chassis. The chassis is situated in front of the diaphragm of the loudspeaker. The chassis comprises a central member which is provided with an aperture so that it can be connected to the center pole of a magnet. Extending from the central member to an outer flange are a plurality of spokes or a perforated member which provide protection for the diaphragm.
Claims17
A moving coil loudspeaker assembly having a speaker diaphragm, and a magnet and voice coil both positioned substantially behind the diaphragm, the voice coil attached to the diaphragm and oscillating in an air gap adjacent the magnet to drive the diaphragm, and a chassis in front of the diaphragm in a position to support the diaphragm and the magnet, the chassis also providing the sole means of structural support for the magnet, the chassis comprising (a) a central member having one connecting member of a male/female mating arrangement for attachment to a center pole of the magnet which includes a complementary connecting member of the male/female mating arrangement, (b) an outer flange with means for attaching a front suspension of the diaphragm thereto, and (c) connecting means extending from the outer flange inwardly to terminate at and provide a direct means of connection to the central member, the connecting means extending inwards from the outer flange and inside an open space occupied within the front side of the diaphragm in front of the magnet, the central member of the chassis supporting the center pole of the magnet for aligning the central member and the center pole, the chassis aligning the voice coil in the air gap relative to the magnet via the support provided by the chassis central member's attachment to the center pole of the magnet, the rear and outside of the diaphragm being substantially chassis free so the connecting means of the chassis provide a major path of heat dissipation for the heat generated by operation of the voice coil from the rear-mounted magnet through the connecting means on the front side of the speaker diaphragm toward the outer flange.
A moving coil loudspeaker assembly comprising a chassis which supports a magnet and a diaphragm, the chassis having a central member, the magnet having a center pole supported by the central member of the chassis for aligning the central member and the center pole, the chassis comprising the sole structural support for the magnet, in which a voice coil attached to the diaphragm oscillates in an air gap adjacent the magnet to drive the diaphragm, the chassis aligning the voice coil in the air gap relative to the magnet via the support provided by the chassis central member's support of the center pole of the magnet, and in which the magnet and voice coil are both positioned substantially behind the diaphragm, the chassis being situated in front of and substantially inside the space occupied by said diaphragm and in front of the magnet in the loudspeaker, and in which the rear and outside of the diaphragm is substantially chassis free, so that heat generated by the operation of the voice coil is dissipated to the front of the speaker assembly by the front-mounted chassis which supports the magnet and the diaphragm.
Dependencies are inferred from the claim text.