US 12,267,643 B2
Speaker box
Haijuan Yang, Shenzhen (CN); and Lifeng Wu, Shenzhen (CN)
Assigned to AAC Microtech (Changzhou) Co., Ltd., Changzhou (CN); and AAC Acoustic Technologies (Shenzhen) Co., Ltd., Shenzhen (CN)
Filed by AAC Microtech (Changzhou) Co., Ltd., Changzhou (CN); and AAC ACOUSTIC TECHNOLOGIES (SHENZHEN) CO., LTD., Shenzhen (CN)
Filed on Oct. 14, 2022, as Appl. No. 17/965,838.
Claims priority of application No. 202220797325.7 (CN), filed on Apr. 7, 2022.
Prior Publication US 2023/0328428 A1, Oct. 12, 2023
Int. Cl. H04R 1/28 (2006.01); H04R 1/02 (2006.01)
CPC H04R 1/288 (2013.01) [H04R 1/025 (2013.01); H04R 2400/11 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A speaker box including:
a housing having a bottom wall and a side wall extending from the bottom wall;
a speaker accommodated in the housing;
an air-permeable spacer assembly accommodated in the housing;
a containment space formed by the air-permeable spacer assembly with the housing for being filled with sound absorbing powder; wherein
the air-permeable spacer assembly includes
a bracket having an annular main body fixed with the side wall of the housing and a leg extending from the annular main body for connecting with the bottom wall of the housing; and
an air-permeable spacer fixed to the annual main body of the bracket, wherein
the bottom wall includes a first part and a second part that is closer to the annual main body than the first part; the leg includes a first leg fixed to the first part and a second leg fixed to the second part; a length of the first leg is greater than a length of the second leg.