Loudspeaker system with improved sound
AssigneesSound Solutions International Co., Ltd., Nautilus Capital Corporation
InventorsMaria Papakyriacou, Johannes Kobler, Jürgen Sauer
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Abstract
A loudspeaker device is presented which includes a zeolite material comprising zeolite particles having a silicon to aluminum mass ratio of at least 200. For an increased pore fraction of pores with a diameter in a range between 0.7 micrometer and 30 micrometer shows an increased shift of the resonance frequency down to lower frequencies has been observed.
Claims38
An acoustic element for placement in a back volume of an acoustic device, the acoustic element comprising a plurality of zeolite grains, wherein the zeolite grains have a silicon to aluminum mass ratio of at least 200, wherein the acoustic element, when exposed to acoustic pressure within the back volume of the acoustic device, changes the acoustic compliance of gases contained within the back volume of the acoustic device, and wherein the plurality of the zeolite grains are comprised of:
- a plurality of zeolite particles comprising silicon dioxide and aluminum constituents;
- and
- a binder material that adheres the zeolite particles together into a zeolite grain.
An acoustic element for placement in a back volume of an acoustic device, the acoustic element comprising a plurality of zeolite grains, wherein the zeolite grains have a silicon to aluminum mass ratio of at least 200, and wherein the acoustic element, when exposed to acoustic pressure within the back volume of the acoustic device, changes the acoustic compliance of gases contained within the back volume of the acoustic device, wherein the plurality of the zeolite grains are comprised of:
- a plurality of zeolite particles comprising silicon dioxide and aluminum constituents;
- and
- a polymer binder material that adheres the zeolite particles together into a zeolite grain.
A zeolite sound adsorber for adsorbing and desorbing a gas medium contained within a substantially closed volume, the zeolite sound adsorber comprising a plurality of zeolite grains, wherein a plurality of the zeolite grains are comprised of:
- a plurality of zeolite particles each comprising silicon and aluminum constituents, wherein the silicon to aluminum mass ratio of the particle is at least 200;
- a binder material that binds the plurality of zeolite particles together, wherein the mean diameter of the zeolite grains is greater than or equal to 100 micrometers;
- and
- wherein the zeolite sound adsorber adsorbs and desorbs the gas medium based on acoustic pressure.
A zeolite sound adsorber for adsorbing and desorbing gas within a substantially closed volume, the zeolite sound adsorber comprising a plurality of zeolite grains, wherein a plurality of the zeolite grains comprise:
- a plurality of zeolite particles having silicon dioxide and aluminum constituents in a predetermined silicon to aluminum mass ratio,
- wherein the zeolite particles are configured to have a mean diameter that is less than 10 micrometers and greater than 0.1 micrometers,
- wherein the zeolite particles comprise a plurality of micropores with pore diameters between 0.4 nanometers and 0.7 nanometers, and
- wherein the zeolite particles are hydrophobic, non-corrosive, and electrically insulating;
- and
- a polymer binder material that binds the plurality of zeolite particles together, wherein the mean diameter of the zeolite grains is between 100 micrometers and 900 micrometers.
Dependencies are inferred from the claim text.