US Patent 10979819 Sound device

The present disclosure provides a sound device, which includes a magnetic circuit system, wherein the magnetic circuit system includes a bottom plate, a first magnetic portion arranged on the bottom plate and a second magnetic portion spaced apart from the first magnetic portion, at least one of the first magnetic portion and the second magnetic portion is a permanent magnet, the bottom plate is provided with a through hole penetrating through the bottom plate, the sound device further includes a damping member, the damping member is fixed on the bottom plate and completely covers the through hole, and the permanent magnet is at least partially abutted against the damping member.