Speaker

A speaker, comprising a frame, a vibrating system and a magnet circuit system with a magnetic gap both accommodated in the frame respectively,

• wherein, the vibrating system comprises a vibrating diaphragm fixed on the frame, a voice coil driving the vibrating diaphragm and inserted into the magnetic gap for driving the vibrating diaphragm, and an elastic supporting assembly fixed on the frame and connected to the voice coil at an end away from the vibrating diaphragm;
• the magnetic circuit system comprises a yoke fixed on the frame, a main magnet fixed on the yoke, a secondary magnet located on two opposite sides of the main magnet and spaced away from the main magnet for forming the magnetic gap, and a magnetic plate stacked on the secondary magnet and spaced away from the elastic supporting assembly;
• an orthographic projection of the elastic supporting assembly on the yoke along a vibrating direction of the vibrating diaphragm, and an orthographic projection of the secondary magnet on the yoke along the vibration direction of the vibrating diaphragm at least do not overlap partially;
• and
• the magnetic plate includes a main body in an annular shape stacked on the secondary magnet and an extending wall extending from two opposite sides of the main body towards the main magnet and spaced away from the voice coil;
• the extending wall is facing and spaced away from the elastic supporting assembly;
• wherein the elastic supporting assembly includes an elastic member and an auxiliary vibrating diaphragm connected to the elastic member at an end away from the vibrating diaphragm, wherein one end of the elastic member is fixed on the frame, and the other end of the elastic member is fixed on the voice coil at an end away from the vibrating diaphragm;
• wherein the elastic member is a flexible circuit board, and the voice coil is electrically connected to the elastic member.