Multifunctional sound device

A multifunctional sound device, comprising:

• a housing;
• a sound unit;
• and
• a motor assembly;
• wherein the housing comprises an accommodating space, the sound unit is accommodated in the accommodating space;
• the sound unit comprises a frame, a vibration system, and a magnetic circuit system;
• the vibration system and the magnetic circuit system are respectively fixed to the frame, the magnetic circuit system is configured to drive the vibration system to vibrate and generate sound;
• the magnetic circuit system comprises magnetic gaps;
• the motor assembly is accommodated in the accommodating space, the motor assembly comprises a vibration unit and elastic components, the vibration unit is disposed on one side, distal from the vibration system, of the magnetic circuit system;
• the elastic components suspend the vibration unit in the accommodating space;
• the vibration unit comprises driving coils and a mass block;
• the driving coils are fixed to the mass block and are located in a magnetic field range of the magnetic circuit system;
• and
• the mass block is made of conductive materials, the driving coils interact with the magnetic circuit system to enable the vibration unit to vibrate in a reciprocating mode after the driving coils are energized, and the mass block cuts magnetic field lines of the magnetic circuit system in reciprocating vibration of the vibration unit and generates electromagnetic damping to prevent the vibration unit from vibrating.