ACOUSTIC OUTPUT DEVICE Russian patent published in 2023 - IPC H04R9/06 

FIELD: acoustics; speakers.

SUBSTANCE: acoustic output device comprises an acoustic driver, a diaphragm, and a magnetic circuit, wherein the front side of the acoustic driver is formed on the side of the diaphragm facing away from the magnetic circuit structure, the rear side of the acoustic driver is formed on the side of the magnetic circuit structure facing away from the diaphragm, and the diaphragm vibrates to cause sound radiation by the acoustic driver outward from the front side and rear side of the acoustic driver. The housing is designed so that one side of the front side and rear side of the acoustic exciter together with the housing structure forms a cavity and emits sound in the direction of the cavity, and the other side of the front side and rear side of the acoustic exciter does not form a cavity together with the housing structure and emits sound directly outward from the acoustic exit device without passing through the cavity.

EFFECT: reduced sound leakage.

9 cl, 25 dwg