US 12,335,682 B2
Sound device
Shasha Liu, Changzhou (CN); and Xiaodong Liu, Changzhou (CN)
Assigned to AAC Microtech (Changzhou) Co., Ltd., Changzhou (CN)
Filed by AAC Microtech (Changzhou) Co., Ltd., Jiangsu (CN)
Filed on May 29, 2023, as Appl. No. 18/325,073.
Application 18/325,073 is a continuation of application No. PCT/CN2023/072823, filed on Jan. 18, 2023.
Claims priority of application No. 202320014535.9 (CN), filed on Jan. 4, 2023.
Prior Publication US 2024/0223939 A1, Jul. 4, 2024
Int. Cl. H04R 1/28 (2006.01); H04R 1/02 (2006.01); H04R 9/06 (2006.01)
CPC H04R 1/288 (2013.01) [H04R 1/025 (2013.01); H04R 1/2811 (2013.01); H04R 1/2826 (2013.01); H04R 1/2876 (2013.01); H04R 9/06 (2013.01); H04R 2201/029 (2013.01); H04R 2400/11 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A sound device, comprising:
a sound production unit;
a support assembly;
a sound absorption material; and
a cover plate;
wherein the sound production unit comprises a vibrating diaphragm, and the vibrating diaphragm is configured to vibrate and sound;
the support assembly is fixed to one side, distal from the vibration diaphragm, of the sound production unit; the support assembly and the sound production unit jointly define a sound production rear cavity, the support assembly comprises a ventilation structure and a powder filling hole, the ventilation structure is configured to release pressure, and the powder filling hole penetrates through the ventilation structure;
the sound absorption material is filled into the sound production rear cavity through the powder filling hole; and
the cover plate covers and is fixed to the powder filling hole.