Structure of mobile phone sound box

Abstract

This invention relates to one mobile sound box structure, which comprises one box with one resonance chamber, wherein, the chamber wall is set with one outer environment connection hole; the resonance chamber and the hole are set with one channel with two ends connected to the resonance chamber; the telephone sound box matches mobile telephone structure to enlarge resonance film air area with good effect of low frequency and good quality.

Description

【Technical field】 [0001] The invention relates to a mobile phone, in particular to a sound box structure of the mobile phone. 【Background technique】 [0002] In recent years, with the rapid development of the communication industry, the demand for mobile phones has increased greatly. As a communication tool for people, the most basic function of mobile phones is to transmit sound signals such as voice and music. To generate sound, or convert sound into electrical signals for transmission, electro-acoustic conversion components are necessary. Among the electro-acoustic conversion components, speakers are the most widely used. [0003] In recent years, in order to meet the requirements of consumers such as portability, electronic components such as mobile phones have been continuously improved and improved in the direction of short, small, light, and thin development. Therefore, the size of speakers used in mobile phones is also limited. In order to achieve a better resonance...

AI Technical Summary

Problems solved by technology

[0004] Existing mobile phones generally form a closed cavity inside, and the speaker is installed in the cavity, so that the forward radiated sound waves of the speaker are completely isolated from the backward radiated sound waves. When the diaphragm vibrates and pushes the air to move, the The air in the air acts like a spring. At this time, the volume of the cavity is actually increasing. The airtight cavity causes the air pressure inside and outside the cavity to be different. The diaphragm of the speaker is quickly compressed due to the pressure difference between the air inside and outside the cavity. Back, the nonlinear displacement of the diaphragm is suppressed, and the stroke of the speaker is shortened, and because the sound pressure level of the low-frequency playback sound is roughly proportional to the amount of air that the speaker diaphragm can push, the stroke of the speaker becomes shorter, and the stroke and The product of the area of ​​the diaphragm, that is, the amount of air that the diaphragm can push is correspondingly reduced, so that the lowest resonance frequency of the speaker is higher, and the low-frequency playback effect is poor

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