| 摘要 |
The present invention provides a double-vibrating-diaphragm loudspeaker module. The double-vibrating-diaphragm loudspeaker module comprises: a peripheral housing providing with a first sound outlet hole and a second sound outlet hole; a supporting structure fixed on an inner wall of the peripheral housing; and a loudspeaker unit comprising a first vibrating diaphragm, a sound coil, a magnetic circuit system and a second vibrating diaphragm. The sound coil and the magnetic circuit system are separately combined with the first vibrating diaphragm and the second vibrating diaphragm. The sound coil is accommodated in a magnetic gap of the magnetic circuit system. Edges of the first vibrating diaphragm and the second vibrating diaphragm are fixed on the supporting structure. The peripheral housing, the supporting structure and the loudspeaker unit form a first front sound cavity, a second front sound cavity, and a rear sound cavity. The first front sound cavity comprises a space between the first vibrating diaphragm and a part closing to the first vibrating diaphragm, of the peripheral housing, and communicates with the external by using the first sound outlet hole. The second front sound cavity comprises a space between the second vibrating diaphragm and a part closing to the second vibrating diaphragm, of the peripheral housing, and communicates with the external by using the second sound outlet hole. The rear sound cavity comprises a space between the first vibrating diaphragm and the second vibrating diaphragm and forms a sealed hollow cavity. The double-vibrating-diaphragm loudspeaker group can improve high and low frequency acoustic features. |
