US 12,149,907 B2
Sound-producing device and electronic terminal
Jianbin Yang, Weifang (CN); Shousong Qiang, Weifang (CN); and Chunfa Liu, Weifang (CN)
Assigned to Goertek Inc., Shandong (CN)
Appl. No. 17/773,167
Filed by Goertek Inc., Shandong (CN)
PCT Filed Nov. 5, 2020, PCT No. PCT/CN2020/126815
§ 371(c)(1), (2) Date Apr. 29, 2022,
PCT Pub. No. WO2021/088931, PCT Pub. Date May 14, 2021.
Claims priority of application No. 201911090401.X (CN), filed on Nov. 8, 2019.
Prior Publication US 2024/0155294 A1, May 9, 2024
Int. Cl. H04R 9/02 (2006.01); H04R 9/06 (2006.01)
CPC H04R 9/025 (2013.01) [H04R 9/06 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A sound-producing device, comprising:
a voice coil including a bobbin and a voice coil body wound outside the bobbin; configured for input of an electrical signal;
a first damper group and a second damper group, each of the first damper group and the second damper group comprising a first connecting part connected with the voice coil, a second connecting part fixed to the sound-producing device and an elastic part connected between the first connecting part and the second connecting part;
wherein the first damper group is configured for electrical communication with the voice coil to input the electrical signal to the voice coil;
wherein the first damper group and the second damper group are fixed to the voice coil in parallel at different heights;
wherein the bobbin or the voice coil body is provided with a conducting member for electrically conducting with the first damper group;
wherein the conducting member is a pad, the first damper group and the pad are welded and fixed, and the second damper group and the bobbin or the voice coil body are fixed by glue; and
wherein the pad is provided with a bending structure protruding from a side of the voice coil and configured to hold the first damper group in a position.