Loudspeaker box

Abstract

The present invention provides a loudspeaker box including a housing having a receiving space, a sounding unit housed in the receiving space, a support wall extending from the inner side of the housing, and a sound guiding channel formed in the receiving space. The sounding unit is fixedly supported on the support wall and includes a diaphragm for vibrating and sounding. The diaphragm and the housing are spaced apart to form a front sound cavity and a rear cavity. The sound guiding channel communicates the front sound cavity with the outside and forms a front cavity together with the front sound cavity. The loudspeaker box further includes a surrounding wall extending from the inner side of the housing, and a cover plate extending outwardly from the sounding unit. The surrounding wall is located outside the support wall. The cover plate completely covers the surrounding wall. The housing, the surrounding wall, the support wall and the cover plate define an auxiliary sound cavity together. The support wall is provided with a through hole penetrating through the support wall. The auxiliary sound cavity communicates with the front cavity through the through hole to form a resonant cavity structure of the front cavity. The resonant cavity is used for improving the high-frequency acoustic performance. The loudspeaker box of the present invention has excellent high-frequency acousticperformance and a good sense of hearing.

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 a housing with a storage space, a sounding unit accommodated in the housing, and a sound guide channel formed in the housing space, and the sounding unit includes a vibrating unit for vibrating sound. The diaphragm divides the accommodation space into a front acoustic cavity and a rear cavity, and the sound guide chann...

AI Technical Summary

Problems solved by technology

[0004] However, in the speaker box of the related art, the space of the front cavity is limited to the area directly facing the dome and the area of ​​the sound guide channel, the structure is monotonous, and the optimized design cannot be carried out, and the high-frequency acoustic performance is limited, such as the sense of hearing at high frequencies. The sound is harsh

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