SUSPENSION FOR ACOUSTIC DEVICE

摘要

An acoustic device includes a diaphragm, a frame, and a suspension element that couples the diaphragm to the frame such that the diaphragm is movable in a reciprocating manner relative to the frame. The suspension element includes a first surround element and a second surround element that have respective inner landings between which a region proximal to an outer edge of the diaphragm is disposed. The inner landings are mechanically coupled by an adhesive material disposed along an inner periphery of the suspension element. The adhesive material has a viscoelastic response that increases stiffness as frequency increases, resulting in a shift of a first breakup mode of the acoustic device from a first frequency to a second, higher frequency.

主权项

1. An acoustic device comprising:
a diaphragm a frame; and a suspension element that couples the diaphragm to the frame such that the diaphragm is movable in a reciprocating manner relative to the frame, the suspension element comprising a first surround element and a second surround element that have respective inner landings between which a region proximal to an outer edge of the diaphragm is disposed and respective outer landings that are separated by a distance that is greater than a thickness of the diaphragm, wherein the inner landings are mechanically coupled by an adhesive material disposed along an inner periphery of the suspension element, the adhesive material having a viscoelastic response that increases stiffness as frequency increases, resulting in a shift of a first breakup mode of the acoustic device from a first frequency to a second, higher frequency.