Loudspeaker module

Abstract

The invention discloses a loudspeaker module and relates to the technical field of electric-acoustic products. The loudspeaker module comprises a shell. A loudspeaker single body is contained in the shell and partitions an inner cavity of the whole module into a front acoustic cavity and a rear acoustic cavity. A speaking area is arranged at the position, corresponding to the front acoustic cavity, of the shell. Micro-holes which communicate the front acoustic cavity with the outside of the module are distributed in the speaking area. The loudspeaker module solves various adverse technical problems caused by screen cloth pasted to a speaking opening of a module in the prior art. The loudspeaker module is good in uniformity and acoustic performance, excellent in dustproof effect, attractive in appearance, high in production efficiency and low in production cost. Meanwhile, research and development and debugging are flexible, and the research and development period is short.

Description

technical field [0001] The invention relates to the technical field of electroacoustic products, in particular to a loudspeaker module. Background technique [0002] The loudspeaker module is an important acoustic component of portable electronic equipment, which is used to complete the conversion between electrical signals and sound signals, and is an energy conversion device. The loudspeaker module usually includes a shell, which contains a speaker unit. The loudspeaker unit divides the entire module cavity into two cavities, the front sound cavity and the rear sound cavity. mouth. [0003] At present, the sound outlet of the speaker module adopts an open design, that is, the diaphragm of the speaker unit and the outside of the sound outlet are an unobstructed channel. The density of the mesh improves the acoustic performance. However, the design of this kind of open sound outlet with dust-proof nets still has the following deficiencies in actual production and use: ...

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Problems solved by technology

[0004] 1. Dust-proof nets are generally pasted by hand, which is easy to stick to deviation, and the consistency is difficult to guarantee, which will cause the foam around the mesh to block the sound outlet and affect the acoustic performance; at the same time, pasting misalignment will also affect the appearance of the product;

[0005] 2. During the pasting, transportation and assembly of the whole machine, the foam around the mesh is easily damaged by rubbing against other parts, resulting in poor sealing and sound leakage when the whole machine is used, and the acoustic performance is damaged;

[0006] 3. During the overall assembly process, the mesh cloth is easily scratched by other parts, and it is prone to snagging, which will lead to a decrease in acoustic performance, no dustproof effect, and shorten the service life of the speaker module;

[0007] 4. Mesh raw materials are prone to dirt and wrinkles, which will affect the acoustic performance;

[0008] 5. In the research and development stage, it is often necessary to adjust the acoustic resistance characteristics to improve the acoustic performance of the speaker module. At present, the acoustic performance is mainly adjusted by adjusting the density of the mesh cloth. It is necessary to purchase the raw material of the mesh cloth first, and then process it into a dust-proof net and paste it to the sound outlet of the speaker module, resulting in a long development cycle and low efficiency

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