US 12,238,476 B2
Speaker module
Yao Hui, Shenzhen (CN); Juha Backman, Tampere (FI); and Yufen Chu, Shenzhen (CN)
Assigned to AAC Technologies Pte. Ltd., Singapore (SG)
Appl. No. 17/921,957
Filed by AAC Technologies Pte. Ltd., Singapore (SG)
PCT Filed Aug. 9, 2022, PCT No. PCT/CN2022/111196
§ 371(c)(1), (2) Date Oct. 27, 2022,
PCT Pub. No. WO2024/016401, PCT Pub. Date Jan. 25, 2024.
Claims priority of application No. 202210849600.X (CN), filed on Jul. 19, 2022.
Prior Publication US 2024/0223941 A1, Jul. 4, 2024
Int. Cl. H04R 25/00 (2006.01); H04R 1/28 (2006.01); H04R 1/30 (2006.01)
CPC H04R 1/30 (2013.01) [H04R 1/2811 (2013.01); H04R 2499/11 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A speaker module for mobile terminal with a sound output port, including:
a speaker box having a sound output opening in a side surface thereof for generating sound;
a hollow horn barrel with two openings at both ends thereof, connected to the sound output opening; wherein
one of the openings of the horn barrel communicates with the sound output opening, and the other opening of the horn barrel communicates with the sound output port of the mobile terminal; and
an area of a cross-section of the horn barrel along a sound output direction is gradually changed;
the horn barrel includes a top surface and a bottom surface spaced along a thickness direction of the speaker box, and two side surfaces respectively connecting to the bottom surface and the top surface; the bottom surface and/or the top surface are curved.