Back to results
US 2019/0174223 A1Published application
Audio speaker having a rigid adsorptive insert
AssigneeApple Inc.
InventorsChristopher Wilk, Ruchir M. Dave, Scott P. Porter, Daniel T. McDonald
Life of this patent
Estimating the term…
Abstract
An audio speaker having an adsorptive insert in a speaker back volume, is disclosed. More particularly, an embodiment includes an adsorptive insert having a rigid open-pore body formed by bonded adsorptive particles. The rigid open-pore body includes interconnected macropores that transport air from the speaker back volume to adsorptive micropores in the bonded adsorptive particles during sound generation. Other embodiments are also described and claimed.
Claims20
An audio speaker, comprising:
- a speaker housing having a speaker port and an inner surface;
- a loudspeaker mounted in the speaker port to define a back volume between the loudspeaker and the inner surface;
- an adsorptive insert in the back volume, wherein the adsorptive insert includes a plurality of adsorptive particles bound together to form an open-pore body having a network of macropores interconnected to transport air from the back volume to a plurality of micropores in the bonded adsorptive particles, and wherein the adsorptive insert has an outer surface;
- and
- a spacer between the outer surface and the inner surface, wherein the spacer is disposed against the outer surface and the inner surface and has a thickness at least twice a diameter of the macropores to maintain the speaker housing and the adsorptive insert in a spaced apart relationship.
2 more elements
An audio speaker, comprising:
- a speaker housing having a speaker port and an inner surface;
- a loudspeaker mounted in the speaker port to define a back volume between the loudspeaker and the inner surface;
- and
- an adsorptive insert in the back volume, wherein the adsorptive insert includes a plurality of adsorptive particles bound together to form an open-pore body having a network of macropores to transport air from the back volume to a plurality of micropores in the bonded adsorptive particles, and wherein an outer surface of the adsorptive insert includes a recess facing the loudspeaker.
1 more element
A method, comprising:
- molding a speaker housing having a speaker port and an inner surface defining a rear cavity;
- bonding a plurality of adsorptive particles together to form an adsorptive insert including an open-pore body having a network of macropores are interconnected, wherein the adsorptive insert has an outer surface;
- inserting the open-pore body into the rear cavity;
- positioning a spacer between the outer surface and the inner surface such that the spacer is disposed against the outer surface and the inner surface and has a thickness at least twice a diameter of the macropores to maintain the speaker housing and the adsorptive insert in a spaced apart relationship;
- and
- mounting a loudspeaker in the speaker port to define a back volume between the loudspeaker and the inner surface, wherein the plurality of interconnected macropores transport air from the back volume to a plurality of micropores in the bonded adsorptive particles.
3 more elements
Dependencies are inferred from the claim text.