Electronic equipment and loudspeaker module thereof

Abstract

The invention provides electronic equipment and a loudspeaker module thereof. The loudspeaker module comprises a shell, a sound production unit and a bass tube. The shell is provided with a containingcavity, a first sound outlet hole and a second sound outlet hole. The sound production unit is arranged in the accommodating cavity and divides the accommodating cavity into a sound guide front cavity and a coupling rear cavity, and the sound guide front cavity is communicated with the external space of the electronic equipment through the first sound outlet hole. The bass tube is arranged in thecoupling rear cavity and is communicated with the internal space of the electronic equipment through the second sound outlet hole. Therefore, the low-frequency sensitivity of the loudspeaker module can be improved, and the overall tone quality is further improved. Moreover, the working voltage required by the sounding unit to work under the maximum amplitude can be reduced, the performance requirement on the power amplifier is reduced, the power consumption of the electronic equipment is reduced, and the endurance time of the electronic equipment is prolonged. Besides, the amplitude of the loudspeaker module can be suppressed at the resonant frequency so that amplitude protection of the intelligent power amplifier is enabled not to be easily triggered in the frequency band, and the performance of the acoustic device can be better performed.

Description

【Technical Field】[0001]The invention relates to the technical field of sound and electricity, in particular to an electronic device and a speaker module thereof.【Background technique】[0002]With the advent of the mobile Internet era, the number of smart mobile devices continues to rise. Among many mobile devices, smart phones have become indispensable electronic devices in people's lives, but the sound reproduction of smart phones has not been able to achieve a satisfactory acoustic experience for users.[0003]The speaker module is an indispensable electro-acoustic transducer in electronic equipment, which mainly converts electrical energy into sound energy. In the process of common speaker module vibration and sound, the power consumption of the whole electronic device will rise sharply, resulting in a reduction in the battery life of the whole machine, thereby affecting the user experience. In addition, when using a smart power amplifier, the amplitude of the speaker module is usual...

AI Technical Summary

Problems solved by technology

However, since the speaker module is in the playback frequency band of 20Hz to 20kHz, under the same voltage, the amplitude of each frequency point is not the same, so some frequency domains are very easy to trigger the amplitude protection, while some frequency domains will not trigger the amplitude protection at all. , which will inhibit the performance of the speaker module

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