DOUBLE-VIBRATING-DIAPHRAGM LOUDSPEAKER MODULE

摘要

A double-diaphragm loudspeaker module comprises: a housing providing with a first sound hole and a second sound hole; a supporting structure fixed on an inner wall of the housing; and a loudspeaker unit comprising a first diaphragm, a sound coil, a magnetic circuit system and a second diaphragm. The sound coil and the magnetic circuit system are separately combined with the first diaphragm and the second diaphragm. The 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 diaphragm and the housing. The second front sound cavity comprises a space between the second diaphragm and the housing. The rear sound cavity comprises a space between the first diaphragm and the second diaphragm.

主权项

1. A double-vibrating-diaphragm loudspeaker module comprising:
a peripheral housing provided with a first sound hole and a second sound hole; a supporting member fixed on an inner surface of the peripheral housing; and a loudspeaker unit comprising a first vibrating diaphragm, a voice coil, a magnetic circuit system and a second vibrating diaphragm, wherein, the voice coil is coupled with the first vibrating diaphragm, the magnetic circuit system is coupled with the second vibrating diaphragm, the voice coil is accommodated in a magnetic gap of the magnetic circuit system, and edges of the first vibrating diaphragm and the second vibrating diaphragm are fixed on the supporting member, wherein, the peripheral housing, the supporting member and the loudspeaker unit define a first front acoustic cavity, a second front acoustic cavity, and a rear acoustic cavity; the first front acoustic cavity comprises a space between the first vibrating diaphragm and a part of the peripheral housing closing to the first vibrating diaphragm, and communicates with outside via the first sound hole of the peripheral housing; the second front acoustic cavity comprises a space between the second vibrating diaphragm and a part of the peripheral housing closing to the second vibrating diaphragm, and communicates with outside via the second sound hole of the peripheral housing; and the rear acoustic cavity comprises a space between the first vibrating diaphragm and the second vibrating diaphragm and is formed as a sealed hollow cavity.