Patent attributes
The present invention discloses a speaker, including a holder, a vibration unit and a magnetic circuit unit that are fixed to the holder. The magnetic circuit unit includes a yoke fixed to the holder, a main magnet and an auxiliary magnet that are assembled on the yoke. The main magnet is spaced apart from the auxiliary magnet to form a first magnetic gap. The yoke includes a bottom wall and a sidewall formed by extending from a periphery of the bottom wall while being bent. The main magnet and the auxiliary magnet are assembled on the bottom wall. The auxiliary magnet is provided along a long axis direction of the bottom wall. The sidewall is located in a short axis direction of the bottom wall, and the sidewall is spaced apart from the main magnet to form a second magnetic gap.