speaker module

A loudspeaker module and loudspeaker technology, applied in the direction of sensors, electrical components, etc., can solve the problems of insignificant improvement of the acoustic performance of the speaker module, small contact area between sound-absorbing particles and airflow, and sound-absorbing particles cannot exert sound-absorbing performance, etc., to achieve sound-absorbing The effect is obvious, the sound absorption effect is good, and the effect of F0 is low

Active Publication Date: 2019-06-25
GOERTEK INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the more commonly used structure is to vertically set a mesh isolation part in the rear acoustic cavity to divide the rear acoustic cavity into two cavities, one cavity is used to install the speaker unit, and the other cavity is used to fill sound-absorbing particles, so that the The speaker unit is completely isolated from the sound-absorbing particles, but because the existing speaker modules are all flat structures, the area of ​​the isolation parts is very small, and the airflow is not smooth, resulting in a small contact area between the sound-absorbing particles and the airflow, and the sound-absorbing parts far away from the isolation parts It is difficult for the particles to come into contact with the airflow, so that the sound-absorbing function cannot be achieved, so that the sound-absorbing particles cannot exert the original sound-absorbing performance at all, the sound-absorbing effect is poor, and the space of the rear acoustic cavity and the sound-absorbing function of the sound-absorbing particles cannot be fully utilized. The acoustic performance of the group is not significantly improved

Method used

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Experimental program
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Embodiment 1

[0029] Such as figure 1 , figure 2 with image 3 Commonly shown, a speaker module includes a module casing, the module casing is composed of a combined first casing 10a and a second casing 20a, and the first casing 10a and the second casing 20a surround A loudspeaker unit 30 is accommodated in the space, and the loudspeaker unit 30 is located at one end of the module. The loudspeaker unit 30 divides the entire module inner cavity into two cavities, the front acoustic cavity 72 and the rear acoustic cavity 70. The loudspeaker unit 30 and the first housing 10a jointly form the front acoustic cavity 72, and the corresponding loudspeaker unit on the first housing 10a The position of the body 30 is provided with a sound hole for sound waves to radiate out; the loudspeaker unit 30 , the first housing 10 a and the second housing 20 a together form a rear acoustic cavity 70 . A sound-absorbing cavity 40a is suspended inside the rear acoustic cavity 70 for filling sound-absorbing m...

Embodiment 2

[0035]This embodiment is basically the same as Embodiment 1, the difference is that:

[0036] Such as Figure 4 , Figure 5 with Image 6 Commonly shown, the module casing includes a first housing 10b and a second housing 20b that are integrated, the speaker unit 30 and the first housing 10b together form a front acoustic cavity 72, the speaker unit 30, the first housing 10b and the second housing 20b together form a rear acoustic cavity 70 . The sound-absorbing cavity 40b located in the rear acoustic cavity 70 is surrounded by the combined sound-absorbing cavity upper shell 42b and the sound-absorbing cavity lower shell 44b. The second housing 20b has an integral structure. That is, the first shell 10b extends inwardly with an upper shell frame 420 , and the second shell 20b extends inwardly with a lower shell frame 440 . Direct injection molding on the middle of the upper shell frame 420 and the lower shell frame 440. In this embodiment, the preferred mesh component is ...

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Abstract

The invention discloses a loudspeaker module, and relates to the technical field of electroacoustic products. The loudspeaker module comprises a module shell, and a loudspeaker monomer is contained in the module shell and divides a whole module inner cavity into a front acoustic cavity and a back acoustic cavity; a sound absorption cavity is arranged in the back acoustic cavity in a hanging mode and filled with sound absorption materials, a shell of the sound absorption cavity is provided with a filling opening used for filling the sound absorption materials, and the filling opening is covered with a sealing sheet; the two opposite sides of the shell are each provided with a net-shaped part, and gaps are formed between the two sides, provided with the net-shaped parts, of the shell and the module shell respectively. The loudspeaker module solves the technical problem that in the prior art, the sound absorption effect of sound absorption materials of a loudspeaker module is poor. The loudspeaker module has the advantages that the sound absorption function of the sound absorption materials can be fully achieved, the sound absorption effect is good, F0 is lower, the acoustic performance is obviously improved, and the sound quality is better.

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. Existing speaker modules usually include a shell, in which a speaker unit is accommodated, and the speaker unit divides the entire module inner cavity into two cavities, a front acoustic cavity and a rear acoustic cavity. As the volume of the cavity of the speaker module becomes smaller and smaller, in order to make the speaker module perform well, reduce the F0 (resonant frequency) of the module, and improve the sound quality, technicians usually add sound absorption in the rear sound cavity Material, the sound-absorbing material will absorb part of the sound energy, which is equivalent to expanding...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04R9/02H04R9/06
CPCH04R9/02H04R9/06
Inventor 葛连山孙立国王新
Owner GOERTEK INC
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