Speaker box

Abstract

The present invention discloses a speaker box, which comprises an upper cover, a lower cover that is fixed to the upper cover and collectively forms a receiving space, and a sound emitting unit received in the receiving space. The sound emitting unit divides the receiving space into a front cavity and a rear cavity, and the rear cavity is filled with sound absorbing particles. The sound emitting unit is provided with leakage holes communicating with the rear cavity, the sound emitting unit is also provided with a side surface, and the leakage holes are provided on the side surface. The speakerbox further comprises a gas permeable portion formed in the rear cavity, and the gas permeable portion completely covers the leakage holes. The gas permeable portion comprises a bracket and a gas permeable spacer, the gas permeable spacer is disposed on a side of the bracket away from the sound emitting unit, and the bracket and the gas permeable spacer jointly enclose a gas permeable space connected with the rear cavity. The gas permeable portion separates the sound absorbing particles from the leakage holes. The speaker box is better in acoustic performance as compared with the related art.

Description

【Technical field】 [0001] The invention relates to the field of sound and electricity, in particular to a speaker box applied to portable electronic products. 【Background technique】 [0002] 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. [0003] The speaker box in the related art includes an upper cover, a lower cover fixed on the upper cover and jointly forming a storage space, a sound emitting unit and a ventilating spacer accommodated in the storage space and formed in the storage space. The wall of the space; the sound unit and the upper cover form a front cavity, and the sound unit, the lower cover...

AI Technical Summary

Problems solved by technology

Specifically: the speaker box further includes a heat-melt barrier formed in the accommodation space, and the heat-melt barrier separates the rear cavity from the air-ventilating cavity. However, in the related art, the heat-melt barrier The wall occupies a lot of cavity space; therefore, there is a deficiency that the cavity of the speaker box cannot be effectively used to maximize the volume of the ventilation cavity

[0005] In the related art, the plan design of the plugboard is also adopted to form an independent air-permeable cavity through the partition of the plugboard, but there is still a deficiency that the volume of the rear cavity cannot be fully and effectively utilized

[0006] In the related technology, a full filling scheme is also adopted: the monomer is ventilated through the mesh, and the entire volume of the rear cavity is used as a ventilating cavity, and the mesh is used to block the powder particles from entering the sounding monomer and causing noise, but there is a first leakage hole of the monomer to vent gas. Insufficient lack of smoothness leading to loss of audio performance

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