US 11,968,513 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. 17/833,880.
Claims priority of application No. 202220494975.4 (CN), filed on Mar. 9, 2022.
Prior Publication US 2023/0292053 A1, Sep. 14, 2023
Int. Cl. H04R 9/06 (2006.01); H04R 1/02 (2006.01); H04R 7/12 (2006.01); H04R 9/02 (2006.01); H04R 9/04 (2006.01)
CPC H04R 9/06 (2013.01) [H04R 1/025 (2013.01); H04R 7/12 (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, including a sound membrane and a voice coil for driving the sound membrane to vibrate;
a magnetic circuit system for driving the vibration system to generate sound in a first direction, including a main magnet and a secondary magnet arranged around the main magnet for forming a magnetic gap,
a sounding unit formed by the vibration system and the magnetic circuit system;
a weight;
a drive coil fixed on and movable with the weight along a second direction which is perpendicular to the first direction, including a first side edge spaced from the main magnet, and a second side edge opposite to the first side edge and spaced from the secondary magnet;
a spring plate for connecting with and suspending the weight in the containment cavity, including a first fixed section connecting with the weight and a second fixed section connecting with the housing body; wherein
the first fixed section includes a first main body connecting with the weight, two first connection arms and two first arc bending parts symmetrically arranged on opposite sides of the first main body; opposite ends of the first connection arms are respectively connected to the first main body and the first arc bending part;
the second fixed section includes a second main body connecting with the housing body, a second connection arm and a second arc bending part;
opposite ends of the second connection arm are respectively connected to the second main body and the second arc bending part; and
the first arc bending part and the second arc bending part are fixed by laser spot welding.