speaker module

Abstract

Disclosed is a loudspeaker module, which comprises a loudspeaker unit and a peripheral frame comprising an upper housing and a lower housing; a front acoustic cavity and a rear acoustic cavity are respectively defined as a space between the loudspeaker unit and the upper housing, and a space between the loudspeaker unit and the lower housing; a sound hole in communication with the front acoustic cavity is provided on peripheral frame, and an inverted tube is provided in peripheral frame. The loudspeaker module of the present invention is provided with inverted tube in communication with rear acoustic cavity, so that low-frequency acoustic effect of products can be enhanced, and heat dissipation of rear acoustic cavity and balance of atmospheric pressures can be achieved; inverted tube and loudspeaker unit share front acoustic cavity and sound hole, which is beneficial to increasing size of loudspeaker unit and improving acoustic performance of products.

Description

technical field [0001] The invention relates to the technical field of electroacoustic products, in particular to a loudspeaker module. Background technique [0002] In the prior art, the speaker module includes a speaker unit and a peripheral frame for accommodating and fixing the speaker unit. A front acoustic cavity and a rear acoustic cavity are formed between the speaker unit and the peripheral frame, and the front acoustic cavity and the rear acoustic cavity are structures arranged at intervals. , the front sound cavity is connected with the sound hole of the speaker module, and the rear sound cavity is a sealed structure. The shell of the speaker module with traditional structure is usually equipped with a small-diameter leakage hole connecting the rear acoustic cavity and the outside world. The leakage hole is used to dissipate heat and balance the sound pressure. Due to the large amount of heat generated during the working process of the speaker unit, this small-dia...

AI Technical Summary

Problems solved by technology

However, at present, electronic products are becoming thinner and miniaturized, and the size of the speaker module is also limited. Therefore, it is impossible to expand the low frequency of the product by increasing the volume of the rear acoustic cavity.

[0004] In addition, the large-scale speakers in the traditional structure can improve the bass effect of the speaker by setting the inverter tube, but for the speaker with this structure, the sound outlet of the inverter tube connected to the outside world and the sound hole of the speaker are set separately.

Due to the limited size of the speaker module, it is difficult to directly apply the inverter tube structure used in the speaker module to the speaker module, and due to the limited size of the speaker module, the inverter tube and the speaker unit are respectively provided with sound holes. The structure will take up too much space, which will reduce the size of the speaker unit

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