Ultrathin loudspeaker unit with centering disk arranged in middle of magnetic circuit

The invention relates to the technical field of loudspeakers, in particular to an ultrathin loudspeaker unit with a centering disk arranged in the middle of a magnetic circuit, which comprises a support, the centering disk, a voice coil, a cone and a magnetic component, the support is mounted on the magnetic component, the voice coil is mounted on the cone, the cone is mounted on the support, and the centering disk is mounted on the magnetic component. The magnetic core is characterized in that a receding hole is formed in the middle of the magnetic conduction assembly, the centering disk is located in the receding hole, the magnetic conduction assembly forms an extending part in the receding hole, and the outer side of the centering disk is connected to the extending part. According to the invention, the centering support chip is arranged in the magnetic conductive assembly, and a part of the magnetic conductive assembly is assembled in the support, so that the heights of the centering support chip, the supp