speaker box

Abstract

The present disclosure provides a speaker box, including a housing having an accommodation space, an acoustic device accommodated in the accommodation space, a first air-permeable separation component, a second air-permeable separation component. The acoustic device separates the accommodation space into a front cavity and a rear cavity. The first air-permeable separation component is fixed inside the housing and separates the rear cavity into a first rear cavity and a second rear cavity in air communication with each other. The acoustic device is located in the first rear cavity. The second rear cavity is filled with acoustic absorption particles. The second air-permeable separation component separates the second rear cavity into at least two rear sub-cavities in air communication with each other. Types of the acoustic absorption particles filled in two of the rear sub-cavities are not completely the same. Acoustic performance of the speaker box in the present disclosure is better.

Description

[0001] 【Technical field】 [0002] The invention relates to an electroacoustic device, in particular to a speaker box. [0003] 【Background technique】 [0004] With the advent of the mobile Internet era, the number of smart mobile devices continues to rise. Among the many mobile devices, the mobile phone is undoubtedly the most common and portable mobile terminal device. At present, the functions of mobile phones are extremely diverse, one of which is the function of high-quality music. Therefore, speaker boxes for playing sound are widely used in current smart mobile devices. [0005] The speaker box in the related art includes a lower cover, an upper cover that is combined with the lower cover to form a storage space, a sounding unit accommodated in the storage space, a support wall extending from the upper cover to the lower cover, and Breathable isolation component; the sounding unit and the upper cover form a front cavity, the sounding unit, the upper cover and the lower ...

AI Technical Summary

Problems solved by technology

[0006] However, in the speaker box of the related art, the second rear cavity is only a single cavity. With the structural limitation of the terminal, the second rear cavity used by the speaker box as a virtual sound cavity becomes more and more irregular, and it is difficult to adjust The amount of sound-absorbing particles required at different positions and the selection of sound-absorbing particles with different characteristics will cause problems such as unstable performance, increased amplitude swing, and low-temperature power powder, which will eventually make the acoustic performance of the speaker box unreliable.

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