Sound generator and electronic product

A sound generator, comprising a shell, a vibration system and a magnetic circuit system;

• wherein,
• the vibration system and the magnetic circuit system are sequentially accommodated and fixed at a first end of the shell from top to bottom;
• the magnetic circuit system is provided with a rear sound hole;
• the shell comprises a first portion corresponding to the vibration system and the magnetic circuit system, and a second portion integrally extending downward from the first portion beyond a bottom surface of the magnetic circuit system;
• a second end portion of the shell is selected from the group consisting of a shell portion integrally provided with a shell bottom wall and a shell portion separately mounted with a lower cover plate;
• and wherein a rear cavity in communication with the rear sound hole formed between the second portion of the shell, the bottom surface of the magnetic circuit system and the shell bottom wall or the lower cover plate;
• and
• the shell comprises a side wall, a metal sheet for shielding magnetic leakage being provided on the side wall of the shell.