US 12,088,993 B2
Acoustic device
Shasha Liu, Shenzhen (CN); and Xiaodong Liu, Shenzhen (CN)
Assigned to AAC Microtech (Changzhou) Co., Ltd., Changzhou (CN)
Filed by AAC Microtech (Changzhou) Co., Ltd., Changzhou (CN)
Filed on Jul. 28, 2022, as Appl. No. 17/876,519.
Claims priority of application No. 202123271025.X (CN), filed on Dec. 23, 2021.
Prior Publication US 2023/0209247 A1, Jun. 29, 2023
Int. Cl. H04R 1/28 (2006.01)
CPC H04R 1/2803 (2013.01) [H04R 1/288 (2013.01)] 9 Claims
OG exemplary drawing
 
1. An acoustic device, wherein the acoustic device has a front surface and a rear surface, the front surface is provided with a sound outlet, and the acoustic device comprises:
an enclosure housing that is a metal housing;
an acoustic component mounted in the enclosure housing, wherein the acoustic component and the enclosure housing cooperate to form a front sound cavity and a rear sound cavity, and the front sound cavity is communicated with the sound outlet; and
an isolation component mounted in the rear sound cavity, and the isolation component and the enclosure housing enclose to define a filling cavity configured to be filled with a sound-absorbing material,
wherein the isolation component closely fits at least one outer surface of the acoustic component, the isolation component is provided with a hollow portion to enable the outer surface of the acoustic component to be exposed to the filling cavity, and the hollow portion is also configured to be filled with a sound-absorbing material;
wherein the acoustic component comprises an acoustic unit and a front cover covering one side of the acoustic unit close to the front surface, and the front cover is provided with the sound outlet; and
the acoustic unit comprises a diaphragm opposite to the front cover, the diaphragm and the front cover enclose to define the front sound cavity, and one side of the diaphragm close to the rear surface and the enclosure housing enclose to define the rear sound cavity.