Speaker device

A speaker device, comprising a frame and a vibration unit and a magnetic circuit unit respectively held to the frame, wherein

• the vibration unit comprises a diaphragm held to the frame, a voice coil driving the diaphragm to vibrate and produce sound, and a holder;
• the holder comprises a holder body fixed to the diaphragm and a first connecting portion extending from the holder body in a direction away from the diaphragm;
• the voice coil comprises a pair of first sides and a pair of second sides connected between the first sides;
• each of the pair of the first sides is provided with an elastic support member;
• one end of the elastic support member is fixed to the frame, and another end of the elastic support member is fixed to the first connecting portion;
• each of the pair of the elastic support members and each of the pair of the first sides enclose an accommodating space;
• the magnetic circuit unit comprises a main magnetic body and an auxiliary magnetic body surrounding the main magnetic body, and a magnetic gap is formed between the auxiliary magnetic body and the main magnetic body;
• the auxiliary magnetic body comprises a first magnetic portion that is spaced apart from the first sides and located in the accommodating space and a second magnetic portion that is spaced apart from the second sides;
• wherein
• each of the pair of the elastic support members comprises an auxiliary diaphragm;
• the auxiliary diaphragm is provided with an avoiding groove;
• the auxiliary diaphragm comprises a first fixing portion fixed to the frame, a second fixing portion connected to the first connecting portion, and a suspension portion connecting the first fixing portion and the second fixing portion;
• and the avoiding groove extends, from a side of the second fixing portion away from the first fixing portion, to the suspension portion, the first magnetic portion comprises a main body portion disposed between the second fixing portion and the first sides, and an extension portion extending, from a side of the main body portion away from the first sides, into the avoiding groove;
• and the first connecting portion is provided with a notch for avoiding the extension portion.