Composite film, sound production device and electronic equipment

The invention discloses a composite film. The composite membrane comprises a membrane body, a first through hole penetrating through the membrane body in the thickness direction is formed in the membrane body, the first through hole is filled with a nanofiber material, and the nanofiber material is provided with pores. According to the composite membrane, the first through hole is formed in the membrane body, and the first through hole is filled with the nanofiber material, so that the air permeability of the composite membrane can be improved, and the risk of the composite membrane in a high-temperature application scene is reduced. 本发明公开了一种复合膜。该复合膜包括膜本体，设有沿所述膜本体厚度方向贯通的第一通孔，所述第一通孔内填充有纳米纤维材料，所述纳米纤维材料具有孔隙。本申请的复合膜通过在膜本体设置第一通孔，在第一通孔内填充纳米纤维材料，从而能够提高复合膜的透气性，降低了复合膜在高温应用场景中的风险。