Speaker

A speaker, comprising:

• a frame;
• a vibration unit fixed to the frame;
• and
• a magnetic circuit unit driving the vibration unit to vibrate and produce sound,
• wherein the vibration unit comprises a diaphragm having a ring shape and a voice coil driving the diaphragm to vibrate and produce sound;
• the diaphragm comprises a first suspension having a ring shape, a second suspension having a ring shape and a vibrating portion having a ring shape;
• the first suspension surrounds the second suspension and is spaced apart from the second suspension;
• an outer peripheral side of the vibrating portion is fixed to a side of the first suspension close to the second suspension, and an inner peripheral side of the vibrating portion is fixed to a side of the second suspension close to the first suspension;
• an outer peripheral side of the first suspension is fixed to the frame;
• and an inner peripheral side of the second suspension is fixed to the magnetic circuit unit;
• the magnetic circuit unit is provided with a magnetic gap, and the voice coil is inserted in the magnetic gap;
• the magnetic circuit unit comprises a yoke;
• and the yoke and the diaphragm are arranged at two opposite sides of the frame;
• and
• the vibration unit further comprises a fixing ring connected to the magnetic circuit unit;
• the second suspension surrounds the fixing ring;
• and the inner peripheral side of the second suspension is fixed to an end of the fixing ring close to the yoke;
• wherein the magnetic circuit unit comprises a main magnet fixed to the yoke, an auxiliary magnet surrounding the main magnet, and a subsidiary magnet fixed to and covering a side of the main magnet away from the yoke;
• the auxiliary magnet is spaced apart from the main magnet to form the magnetic gap;
• and the fixing ring is sleeved outside the subsidiary magnet and is fixed to and connected to the subsidiary magnet.