US 12,108,208 B2
Acoustic output devices
Liwei Wang, Shenzhen (CN); Lei Zhang, Shenzhen (CN); Fengyun Liao, Shenzhen (CN); and Xin Qi, Shenzhen (CN)
Assigned to SHENZHEN SHOKZ CO., LTD., Shenzhen (CN)
Filed by SHENZHEN SHOKZ CO., LTD., Guangdong (CN)
Filed on Sep. 14, 2022, as Appl. No. 17/932,288.
Application 17/932,288 is a continuation of application No. PCT/CN2020/140815, filed on Dec. 29, 2020.
Claims priority of application No. PCT/CN2020/106759 (WO), filed on Aug. 4, 2020.
Prior Publication US 2023/0009102 A1, Jan. 12, 2023
Int. Cl. H03G 5/00 (2006.01); H04R 1/02 (2006.01); H04R 1/10 (2006.01); H04R 1/22 (2006.01); H04R 1/24 (2006.01); H04R 1/28 (2006.01); H04R 1/34 (2006.01); H04R 1/40 (2006.01); H04R 7/04 (2006.01); H04R 7/18 (2006.01); H04R 9/02 (2006.01); H04R 9/06 (2006.01)
CPC H04R 1/40 (2013.01) [H04R 1/023 (2013.01); H04R 1/1008 (2013.01); H04R 1/1075 (2013.01); H04R 1/1091 (2013.01); H04R 1/227 (2013.01); H04R 1/24 (2013.01); H04R 1/2846 (2013.01); H04R 1/2884 (2013.01); H04R 1/345 (2013.01); H04R 7/04 (2013.01); H04R 7/18 (2013.01); H04R 9/025 (2013.01); H04R 9/06 (2013.01)] 18 Claims
OG exemplary drawing
 
1. An acoustic output device, comprising
an acoustic driver, wherein the acoustic driver includes a diaphragm and a magnetic circuit structure, a side of the diaphragm facing away from the magnetic circuit structure forms a front side of the acoustic driver, a side of the magnetic circuit structure facing away from the diaphragm forms a back side of the acoustic driver, the diaphragm vibrates so that the acoustic driver radiates sounds outward from its front side and back side, respectively; and
a housing structure configured to carry the acoustic driver, wherein the back side of the acoustic driver and the housing structure form a back cavity, and side walls of the back cavity are connected to each other by a curved structure;
the housing structure includes at least one sound outlet hole, the at least one sound outlet hole is acoustically coupled with the back cavity and outputs the sound radiated to the back cavity by the acoustic driver to the outside of the acoustic output device, wherein the at least one sound outlet hole is located on at least part of the side walls of the back cavity.