Loudspeaker module

Abstract

The invention discloses a loudspeaker module. The loudspeaker module comprises a module shell and a single loudspeaker, wherein the single loudspeaker comprises a vibration system, the vibration system comprises a diaphragm, the diaphragm comprises a fixed part, a folded ring part and a center part, the center part is a plane, the module shell corresponding to the diaphragm comprises a lower surface close to one side of the diaphragm and an upper surface far from one side of the diaphragm, a bump part is arranged on the lower surface of the module shell corresponding to the center part, and aheight difference is formed between the lower surface corresponding to the folded ring part and the lower surface in the bump part. According to the loudspeaker module, due to the structure design ofthe bump part on the module shell, a space between the center part of the diaphragm and the inner surface of the module shell above the center part of the diaphragm is reduced, the sound generation port height is guaranteed, the medium-low frequency response of the loudspeaker is not affected, further, Fh of a frequency response curve of the loudspeaker can extend toward the high frequency direction, the frequency band width of the frequency response curve of the loudspeaker is enlarged, and the high frequency response is improved.

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 is an important acoustic device of portable electronic equipment. It is used to complete the conversion between electrical signals and acoustic signals. It is an energy conversion device. Due to many disadvantages in actual use, side sound has gradually become the mainstream way of speaker module design. A general speaker module includes a module casing and a speaker unit accommodated in the module casing. The speaker unit divides the cavity surrounded by the module casing into a front cavity and a rear cavity. Wherein the side wall of the module shell is provided with the side sound outlet of the speaker module, and the side sound outlet communicates with the upstream cavity facing the speaker unit through the sound channel; the sound generated by the vibration system of the speaker uni...

AI Technical Summary

Problems solved by technology

[0003] In the existing side-firing speaker modules, the module shell directly above the speaker single diaphragm is mostly a flat structure. In order to obtain greater loudness, the height of the sound channel of the side-firing speaker module needs to be The bigger the better, but the larger the sound channel height must make the cavity space between the speaker single diaphragm and the inner surface of the corresponding module shell directly above it, resulting in a higher frequency response curve Fh is smaller and the bandwidth is narrower, and the high-frequency loudness is limited

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