US 12,323,781 B2
Sound generation device and electronic apparatus
Chunfa Liu, Shandong (CN); Jianbin Yang, Shandong (CN); Jianxin Wang, Shandong (CN); and Shousong Qiang, Shandong (CN)
Assigned to GOERTEK INC., Weifang (CN)
Appl. No. 17/999,876
Filed by GOERTEK INC., Shandong (CN)
PCT Filed Nov. 7, 2020, PCT No. PCT/CN2020/127325
§ 371(c)(1), (2) Date Nov. 25, 2022,
PCT Pub. No. WO2021/238073, PCT Pub. Date Dec. 2, 2021.
Claims priority of application No. 202010458486.9 (CN), filed on May 25, 2020.
Prior Publication US 2023/0239624 A1, Jul. 27, 2023
Int. Cl. H04R 9/04 (2006.01); H04R 9/02 (2006.01); H04R 9/06 (2006.01)
CPC H04R 9/043 (2013.01) [H04R 9/025 (2013.01); H04R 9/045 (2013.01); H04R 9/06 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A sound generation device comprising:
a support;
a vibration unit having a height direction;
a magnetic circuit system; and
at least two elastic members,
wherein each of the elastic members comprises:
a first elastic assembly having at least one first elastic connector, one side of the first elastic connector is connected to the vibration unit and the other side thereof is connected to the support; and
a second elastic assembly having at least one second elastic connector, one side of the second elastic connector is connected to the vibration unit and the other side thereof is connected to the support, the first elastic assembly and the second elastic assembly are fixed at different positions in the height direction of the vibration unit,
wherein at least a portion of a first projection region of the first elastic assembly projected onto a plane where the first end surface is located is at outside of a second projection region of the second elastic assembly projected onto a plane where the first end surface is located, or the first projection region is fully overlapped with the second projection region,
wherein the vibration unit comprises a diaphragm and a voice coil connected with the diaphragm, and
wherein the magnetic circuit system is formed with a magnetic gap, and the voice coil is arranged in the magnetic gap of the magnetic circuit system,
wherein each of the at least one first elastic connector and the at least one second elastic connector comprise:
a first connection part connected with the vibration unit;
a second connection part connected with the support; and
a deformation part between the first connection part and the second connection part, both ends of the deformation part are respectively connected with the first connection part and the second connection part, and at least a portion of the deformation part is a structure formed by winding,
wherein at least one of the first elastic connectors and the second elastic connectors is a wire-like structure formed, by connecting at least two metal wires in parallel and side by side as a whole and then winding, or by intertwining at least two metal wires with each other and then winding.