AUDIO SPEAKER WITH BACK VOLUME CONTAINING ADSORPTIVE MATERIAL

摘要

An audio speaker having a speaker housing surrounding a back volume that is divided into a rear cavity behind a speaker driver and an adsorption cavity separated from the rear cavity by a permeable partition, is disclosed. More particularly, the adsorption cavity may be defined between the speaker housing and the permeable partition, and may be directly filled with adsorptive particles to adsorb gas during sound generation. The permeable partition may allow the gas to flow between the rear cavity and the adsorption cavity, and may retain the adsorptive particles within the adsorption cavity. Other embodiments are also described and claimed.

主权项

1. An audio speaker, comprising:
a housing defining a back volume behind a speaker driver, wherein the speaker driver is to convert an electrical audio signal into a sound, the sound to propagate through a gas in the back volume; a permeable partition having a first side, a second side, and a perimeter, wherein the permeable partition is coupled with the housing along the perimeter to divide the back volume into a rear cavity defined between the speaker driver, the housing, and the first side of the permeable partition and an adsorption cavity defined between the housing and the second side of the permeable partition, and wherein the permeable partition includes a plurality of holes between the first side and the second side, each hole placing the rear cavity in fluid communication with the adsorption cavity to allow the gas to flow between the rear cavity and the adsorption cavity; and an adsorptive filler in the adsorption cavity, wherein the adsorptive filler is to adsorb the gas.