US 12,490,018 B2
Acoustic output devices
Lei Zhang, Shenzhen (CN); Zhen Wang, Shenzhen (CN); Liwei Wang, Shenzhen (CN); Peigeng Tong, 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 May 5, 2023, as Appl. No. 18/313,314.
Application 18/313,314 is a continuation of application No. PCT/CN2021/095996, filed on May 26, 2021.
Claims priority of application No. 202110383452.2 (CN), filed on Apr. 9, 2021.
Prior Publication US 2023/0319460 A1, Oct. 5, 2023
Int. Cl. H04R 1/28 (2006.01); H04R 1/02 (2006.01); H04R 1/10 (2006.01); H04R 1/34 (2006.01); H04R 1/40 (2006.01); H04R 7/12 (2006.01); H04R 9/02 (2006.01); H04R 9/04 (2006.01); H04R 9/06 (2006.01); H04R 23/02 (2006.01)
CPC H04R 1/2811 (2013.01) [H04R 1/023 (2013.01); H04R 1/1008 (2013.01); H04R 1/1075 (2013.01); H04R 1/2826 (2013.01); H04R 1/345 (2013.01); H04R 1/406 (2013.01); H04R 7/12 (2013.01); H04R 9/025 (2013.01); H04R 9/045 (2013.01); H04R 9/06 (2013.01); H04R 23/02 (2013.01); H04R 1/1041 (2013.01); H04R 2460/11 (2013.01); H04R 2460/13 (2013.01)] 18 Claims
OG exemplary drawing
 
1. An acoustic output device including a speaker assembly, the speaker assembly comprising:
a transducer;
a diaphragm, the diaphragm being driven by the transducer to vibrate to generate an air conduction sound wave; and
a housing, the housing forming an accommodating chamber for accommodating the transducer and the diaphragm, wherein the diaphragm separates the accommodating chamber to form a first chamber and a second chamber, the housing is provided with a sound outlet communicating with the second chamber, and the air conduction sound wave is transmitted to the outside of the acoustic output device through the sound outlet, wherein
the housing is provided with a sound guiding channel communicating with the sound outlet for guiding the air conduction sound wave to a target direction outside the acoustic output device, and a length of the sound guiding channel is less than or equal to 7 mm; and
the housing includes a skin contact area, and the skin contact area is driven by the transducer to vibrate and generate a bone conduction sound wave, when the acoustic output device is in a wearing state, a first area of the skin contact area is in contact with a user's skin to vibrate and generate the bone conduction sound wave, and a second area of the skin contact area is not in contact with the user's skin, the first area and the second area are joined by an arc surface, and an angle between the second area and the user's skin is in a range of 2°-40°.