Loudspeaker module

Abstract

A loudspeaker module includes a module housing forming an accommodation space, and a loudspeaker unit provided in the accommodation space, a loudspeaker unit divide the accommodating space into a front acoustic chamber and a rear acoustic chamber, the module housing is provided with an acoustic outlet hole communicated with the front acoustic cavity, an outer surface of the module housing near thesound outlet hole is fixedly coupled with a fixing portion, the loudspeaker module further comprises an annular separating sound hole, wherein the separating sound hole protrudes outwardly from one side surface of the module housing to form a plugging portion, the plugging portion has an outer shape corresponding to the inner side surface of the sound outlet hole, the plugging portion and the sound outlet hole are arranged to be interference fit, and the separating sound hole is fixedly bonded to the surface of the fixing portion. The structure makes the bending force generated by the separating sound hole be borne by the shell during the drop test, and reduces the separating force generated between the separating sound hole and the fixed part, so the cracks are not easily generated between the separating sound hole and the shell, thus causing the separating sound hole to fall off from the shell, and improving the reliability of the product.

Description

technical field [0001] The invention relates to the field of electroacoustic technology. More specifically, it relates to a speaker module. Background technique [0002] The speaker module usually has a sound hole on the module casing, and the sound from the diaphragm is transmitted to the outside through the sound hole. In order to ensure the tightness of the speaker module and the whole machine after assembly, a sealing ring is generally pasted around the sound hole, and the material of the sealing ring is mostly silicone rubber. However, in the process of pasting the sealing ring, it is not easy to locate the sealing ring, and the sealing ring is easy to stick to the wrong position, which will block a part of the sound hole, resulting in poor consistency of the whole machine, affecting the acoustic effect of the whole machine and poor sealing. [0003] At present, there is a speaker module that injects silicone rubber onto the sound hole of the module shell to form a se...

AI Technical Summary

Problems solved by technology

[0004] However, in the drop reliability test of the speaker module with this structure, the bonding strength between the separation sound hole and the module shell is not enough to overcome the bending moment during the drop impact, and the separation sound hole will fall off from the module shell, thus making the reliability test failed

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