US 12,192,732 B2
Acoustic devices and magnetic circuit assemblies thereof
Liwei Wang, Shenzhen (CN); Lei Zhang, Shenzhen (CN); Fengyun Liao, Shenzhen (CN); Xin Qi, Shenzhen (CN); Junjiang Fu, Shenzhen (CN); Shuailin Xie, Shenzhen (CN); and Chaowu Li, Shenzhen (CN)
Assigned to SHENZHEN SHOKZ CO., LTD., Shenzhen (CN)
Filed by SHENZHEN SHOKZ CO., LTD., Guangdong (CN)
Filed on Jul. 21, 2022, as Appl. No. 17/814,228.
Application 17/814,228 is a continuation of application No. PCT/CN2021/088446, filed on Apr. 20, 2021.
Claims priority of application No. 202010358223.0 (CN), filed on Apr. 29, 2020; and application No. 202021689802.5 (CN), filed on Aug. 12, 2020.
Prior Publication US 2022/0360905 A1, Nov. 10, 2022
Int. Cl. H04R 9/06 (2006.01); H04R 1/02 (2006.01); H04R 7/12 (2006.01); H04R 7/18 (2006.01); H04R 9/02 (2006.01); H04R 9/04 (2006.01); H04R 25/00 (2006.01)
CPC H04R 9/06 (2013.01) [H04R 1/025 (2013.01); H04R 7/12 (2013.01); H04R 7/18 (2013.01); H04R 9/025 (2013.01); H04R 9/045 (2013.01); H04R 25/606 (2013.01); H04R 2400/07 (2013.01); H04R 2460/13 (2013.01)] 19 Claims
OG exemplary drawing
 
1. An acoustic device, comprising:
a shell including a first accommodation cavity;
a speaker configured in the first accommodation cavity, the speaker including: one or more magnetic circuit assemblies, a voice coil, a vibration assembly, and a vibration transmission plate; the one or more magnetic circuit assemblies forming a magnetic gap; one end of the voice coil being arranged in a magnetic gap, the vibration assembly being connected with the vibration transmission plate, the vibration transmission plate being connected with the shell; wherein
the vibration assembly includes an inner support, an outer support, and a vibration diaphragm;
another end of the voice coil is connected with the inner support;
one end of the outer support is physically connected with both sides of the one or more magnetic circuit assemblies;
the vibration diaphragm is physically connected with the inner support and the outer support to limit a relative movement of the inner support and the outer support in a first direction; the first direction being a radial direction of the first accommodation cavity;
at least one of the inner support, the outer support, or the vibration diaphragm is connected with the vibration transmission plate to transmit vibration to the vibration transmission plate.