US 12,452,580 B2
Speaker box and electronic device
Li Ren, Changzhou (CN); and Chaoyuan Li, Changzhou (CN)
Assigned to AAC Microtech (Changzhou) Co., Ltd., Changzhou (CN)
Filed by AAC Microtech (Changzhou) Co., Ltd., Jiangsu (CN)
Filed on Dec. 26, 2023, as Appl. No. 18/395,780.
Application 18/395,780 is a continuation of application No. PCT/CN2023/086947, filed on Apr. 7, 2023.
Prior Publication US 2024/0340575 A1, Oct. 10, 2024
Int. Cl. H04R 1/28 (2006.01)
CPC H04R 1/2803 (2013.01) [H04R 2201/029 (2013.01); H04R 2400/11 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A speaker box, comprising:
an upper cover plate;
a first lower cover plate;
a speaker unit; and
a motor module;
wherein the first lower cover plate is assembled with the upper cover plate to define an accommodating cavity, the speaker unit and the motor module are accommodated in the accommodating cavity, the speaker unit divides the accommodating cavity into a front cavity and a back cavity; the motor module is disposed on one side, distal from the upper cover plate, of the speaker unit; the upper cover plate comprises a top wall and side walls, a length of at least one of the side walls is greater than a length of an orthographic projection of the at least one of the side walls, the speaker box further comprises second lower cover plates, the second lower cover plates are respectively assembled with edge areas of the upper cover plate to define compensation cavities, and the compensation cavities are communicated with the back cavity.