Miniature loudspeaker module structure with adaptive pressure balancing function

A technology of miniature loudspeaker and module structure, applied in the field of loudspeakers, can solve the problems of unstable results and difficult realization of the process, and achieve the effects of simple implementation, optimized sound quality, and guaranteed stability and reliability.

Active Publication Date: 2013-03-27
JIAXING KEYSOUND ELECTRONICS CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The design and process implementation of traditional leakage holes often rely on the experience of engineers, but the results are unstable and difficult to achieve in terms of technology

Method used

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  • Miniature loudspeaker module structure with adaptive pressure balancing function
  • Miniature loudspeaker module structure with adaptive pressure balancing function
  • Miniature loudspeaker module structure with adaptive pressure balancing function

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The module structure is as follows figure 1 As shown, in this embodiment, the leak hole area of ​​the speaker module is 0.04mm 2 , according to the proportional coefficient of 0.01, take 4mm leaking pipe. The leakage pipe enters into the cavity about 1mm, and the entire leakage pipe is 4mm long. Test results such as Figure 4 As shown, the common module has a length of 0.2mm and a hole area of ​​0.0314mm 2 The leak hole; the self-adaptive pressure balance module is inserted into a 4mm leak pipe as described in this embodiment; the other curve is a speaker module without a leak hole. It can be seen from the figure that the distortion of the speaker module with 4mm leakage pipe is better than that of the ordinary leakage hole module, and it is close to the distortion of the non-leakage hole module. Therefore, the micro-speaker module with such an adaptive pressure balance solves the problem of air pressure imbalance inside and outside the speaker module and greatly im...

Embodiment 2

[0029] On the basis of Embodiment 1, further, the leakage pipe can be fixed inside the speaker module by inserting, bonding or in-mold injection according to the specific manufacturing process. Such as figure 2 shown.

Embodiment 3

[0031] The micro-speaker module with self-adaptive pressure balance involved in this embodiment, the leakage pipe adopts a bent structure. Such as image 3 shown.

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PUM

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Abstract

The invention belongs to the technical field of loudspeakers, and particularly relates to a miniature loudspeaker module structure with an adaptive pressure balancing function. The module structure comprises a body of a module. A loudspeaker or sounding component, a front sound cavity and a rear sound cavity are arranged in the body, sounding holes are arranged on a front cavity wall, which corresponds to a vibrating diaphragm of the loudspeaker or sounding component, of the front sound cavity, and a foam or dustproof screen is arranged between the front cavity wall and the loudspeaker or sounding component. An opening is arranged on a wall of the rear sound cavity, a hollow pipeline used as a leakage pipeline of the loudspeaker module is led out at the opening, the aperture of the hollow pipeline is identical to that of the opening, and the hollow pipeline is used as an air pressure balancing channel; the hollow pipeline and the opening are sealed with each other without a gap; and a coefficient of the proportion of the sectional area of the hollow pipeline to the length of the hollow pipeline is not larger than 0.01. The miniature loudspeaker module structure has the advantages that problems that internal air pressure and the external air pressure are unbalanced due to deficiency of leakage holes of an existing loudspeaker module and an individual loudspeaker is damaged are solved owing to the design of the leakage pipeline of the loudspeaker module, low-frequency effects of the small closed sound cavities of the loudspeaker module are further improved, and the sound quality of the loudspeaker module is optimized.

Description

technical field [0001] The invention belongs to the technical field of loudspeakers, in particular to a micro-speaker module structure with self-adaptive pressure balance. Background technique [0002] With the development of technology, electronic products such as mobile phones, tablet computers, notebook computers, flat-screen TVs, and game console terminals are becoming thinner and more portable. In order to pursue better music playback effects, these terminal products usually use a sealed speaker module The sound cavity can improve the sound quality of the terminal. The speaker module can block the low-frequency coherent waves generated on the back of the speaker, effectively improving the low-frequency playback effect of the speaker, so that the terminal electronic products have more perfect sound quality. [0003] In the prior art, speaker modules generally adopt a completely sealed sound chamber. The volume of the completely sealed rear cavity directly affects the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R9/02H04R9/06
Inventor 李武王晶李莉
Owner JIAXING KEYSOUND ELECTRONICS CO LTD
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