Moving magnetic sounding unit

The invention provides a moving magnetic sound production unit which comprises a magnetic core vibration sound production assembly, a coil assembly, a shell assembly and a fixing assembly. The coil assembly sleeves the magnetic core vibration sounding assembly, is fixed in the housing assembly through the fixing assembly, and is a cylindrical sounding unit as a whole. The magnetic core vibration sound production assembly is composed of a magnetic core, a magnetic conductive shell arranged outside the magnetic core in a sleeving mode, a Mylar film at the opening portion and a positioning ring at the outer ring. The coil assembly comprises a coil and a coil support used for fixing the coil. The shell assembly comprises a cylindrical shell and a cover plate which is arranged at the bottom of the shell and matched with the shell to form a middle cavity. The device has the advantages that the cylinder is arranged, the vibration direction and the sound outlet hole are coaxial, so that sound can be propagated in a c