| 摘要 |
An ultrathin speaker module, comprising: a casing provided with a sound hole thereon; a speaker unit comprising a diaphragm; a first separating wall provided with a diaphragm accommodating hole, wherein the diaphragm is fixed in the diaphragm accommodating hole, and the first separating wall and the diaphragm separate the internal space of the casing into an upper space and a lower space; and a second separating wall, which separates the upper space into one first upper cavity and at least one second upper cavity, wherein the first upper cavity comprises the diaphragm and forms a front acoustic cavity, and the front acoustic cavity is in communication with the outside through the sound hole on the casing; and the at least one second upper cavity is in communication with the lower space through a through hole on the first separating wall, and forms a rear acoustic cavity. |
| 主权项 |
1. An ultrathin speaker module, comprising:
a casing, which is provided with a sound hole thereon; a speaker unit, which comprises a diaphragm; a first separating wall, which is provided with a diaphragm accommodating hole, wherein the diaphragm of the speaker unit is fixed in the diaphragm accommodating hole, and the first separating wall and the diaphragm separate the internal space of the casing into an upper space and a lower space; a second separating wall, which separates the upper space into one first upper cavity and at least one second upper cavity, wherein the first upper cavity comprises the diaphragm and forms a front acoustic cavity, and the front acoustic cavity is in communication with outside through the sound hole on the casing; and the at least one second upper cavity is in communication with the lower space through a through hole on the first separating wall, and forms a rear acoustic cavity; wherein the speaker unit further comprises a voice coil and a magnetic circuit system located in the lower space, the voice coil is combined with the diaphragm, the magnetic circuit system is fixed on the first separating wall and/or the casing, and the voice coil is accommodated in a magnetic gap of the magnetic circuit system; and wherein the magnetic circuit system is provided with a through hole which allows a space between the diaphragm and the magnetic circuit system to be in communication with other parts of the lower space. |
