US 11,968,514 B2
Vibration sounding device
Bo Xiao, Shenzhen (CN); Chenliang Kong, Shenzhen (CN); Tong Zhang, Shenzhen (CN); and Ronglin Linghu, Shenzhen (CN)
Assigned to AAC Microtech (Changzhou) Co., Ltd., Changzhou (CN)
Filed by AAC Microtech (Changzhou) Co., Ltd., Changzhou (CN)
Filed on Jun. 6, 2022, as Appl. No. 17/833,888.
Claims priority of application No. 202220222354.0 (CN), filed on Jan. 27, 2022.
Prior Publication US 2023/0239629 A1, Jul. 27, 2023
Int. Cl. H04R 9/06 (2006.01); H04R 1/02 (2006.01); H04R 9/02 (2006.01); H04R 9/04 (2006.01)
CPC H04R 9/06 (2013.01) [H04R 1/025 (2013.01); H04R 9/025 (2013.01); H04R 9/045 (2013.01); H04R 2499/11 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A vibration sounding device, comprising:
a housing body with a containment cavity;
a vibration system;
a magnetic circuit system for driving the vibration system to move in a first direction, including a main magnet and a secondary magnet assembly surrounding the main magnet for forming a magnetic gap;
a sounding unit formed by the vibration system and the magnetic circuit system;
an elastic assembly accommodated in the containment cavity and fixedly connected to the housing body;
a weight assembly connected to and suspended by the elastic assembly in the containment cavity;
a drive coil fixed to the weight assembly and being movable along a second direction together with the weight assembly, the second direction being perpendicular to the first direction; wherein
the weight assembly includes a first weight with an accommodation cavity and a second weight set in the accommodation cavity; the second weight includes an installation slot for accommodating the drive coil; and both the first weight and the second weight are sheet stamping parts.