Miniature speaker

A miniature speaker including:

• a frame;
• a vibration system including a diaphragm and a voice coil driving the diaphragm, the diaphragm including a first fixation part located on a middle position of the diaphragm, a second fixation part located on an edge of the diaphragm and connected fixedly on the frame, and a vibration part connected between the first fixation part and the second fixation part;
• a magnetic circuit system supported by the frame, and including a lower plate and a magnet part on the lower plate;
• a cover plate located above the diaphragm, the cover plate including a bottom wall, and a side wall extending from the bottom wall toward the diaphragm and connected with the second fixation part;
• a gasket located between and abutting against the bottom wall and the first fixation part;
• wherein
• the vibration part includes a main vibration body, a first suspension extending from an inner edge of the main vibration body and connected with the first fixation part, and a second suspension extending from an outer edge of the main vibration body and connected with the second fixation part;
• the first fixation part is connected with the magnet part fixedly;
• and
• the gasket, the first fixation part and the magnet part are sandwiched firmly between the bottom wall and the lower plate.