Patent ID: 11950075
Assignee: AAC MICROTECH (CHANGZHOU) CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A sounding device, comprising:
a frame;
a magnetic circuit system fixed to the frame and including a magnetic part; and
a vibration system fixed to the frame, comprising:
a diaphragm fixed to the frame;
a voice coil driving the diaphragm to vibrate and arranged around the magnetic part, the voice coil including a lead wire; and
a metal shrapnel with conduction, one end of the metal shrapnel fixed to the frame and electrically connected to an external circuit, and the other end of the metal shrapnel fixed to the voice coil and electrically connected to the lead wire of the voice coil; wherein the number of the metal shrapnel is two, the two shrapnels are located on two opposite sides of the magnetic part, the metal shrapnel restrains a movement of the voice coil in a direction perpendicular to a vibration direction of the diaphragm, wherein

the metal shrapnel comprises a first connecting portion fixedly connected to the voice coil, a welding portion extending from the first connecting portion and electrically connected to the lead wire of the voice coil, a second connecting portion apart from the first connecting portion and fixed to the frame, and an elastic arm connecting the first connecting portion and the second connection portion, the second connecting portion is electrically connected to the external circuit.