Micro moving coil acoustic generator

The utility model discloses a micro moving coil acoustic generator, which comprises a housing and a magnetic circuit system, wherein the magnetic circuit system adopts either an external magnetic structure or a double-magnetic structure and includes a washer board, a magnet and a magnet permeable board which are arranged adjacent to the housing; the washer board, the magnet opposite to the washer board, and the magnet permeable board are assembled from top to bottom; and the magnetic circuit system and the housing are integrally injection-molded, embedded and fixed; furthermore, a fixed part protruding out of the outer edge of the washer board is arranged on the long axis side of the washer board, and the fixed part and the housing are integrally injection-molded. The utility model can enhance the bonding strength between the plastic housing and the magnetic circuit system, so as to ensure the stability of the structure of the micro moving coil acoustic generator, and further ensure the product performance.