| 摘要 |
The present invention relates to the technical field of acoustics. Disclosed is a sound-generating unit for a coil-iron coaxial in-ear earphone, comprising a moving-coil and a moving-iron; a through-hole runs through a central axis of the moving-coil, and the center of a diaphragm of the moving-coil is recessed inward to form an opening, and the opening is in communication with the through-hole, thus forming a moving-iron sound outlet opening; the moving-iron is fixed on the rear portion of the moving-coil, and a moving-iron sound tube of the moving-iron coaxially corresponds to the through hole; the moving-iron sound pipe is connected to a section of connecting tube extending to the moving-iron sound outlet opening; and the distance between the moving-iron sound pipe and the moving-iron sound outlet opening is less than 10 mm. The present invention coaxially combines the moving-coil and the moving-iron, such that the advantages of the bass of the moving-coil and the treble of the moving-iron are fully realized, and the sound generation of the moving-coil and the moving-iron are not mutually obstructive, and low frequency, medium frequency and high frequency audio have no loss; the effect of the original timbre is perfectly represented, noise and distortion are low, and the manufacturing cost of the earphone is greatly decreased; thus satisfying the use requirements of mass consumers. |
