Internal welding type earphone loudspeaker

The utility model provides an internal welding type earphone horn, which comprises a support, a cavity is formed in the support, a U-shaped iron, a magnet, a washer and a voice coil are arranged in the cavity, a diaphragm is arranged at one end of the support, a framework is sleeved outside the magnet and the washer, one end of the framework is connected with the diaphragm, the voice coil is sleeved outside the framework, and the U-shaped iron is arranged in the cavity. The outer side of the framework is further sleeved with an elastic sheet, the elastic sheet is located on one side of the voice coil, the elastic sheet comprises an outer frame and an elastic thin sheet connected to one end of the outer frame, a through hole for the framework to penetrate through is formed in the middle of the elastic thin sheet, and the elastic thin sheet is further provided with a plurality of hollowed-out grooves. According to the internal welding type earphone loudspeaker, the elastic sheet similar to the elastic wave work