Loudspeaker box

Abstract

The invention provides a loudspeaker box, comprising a housing having an accommodating space, a sound production unit accommodated in the accommodating space, a supporting wall extending from the inner side of the housing, and a sound guiding passage formed in the accommodating space, wherein the sound production unit is fixedly supported on the supporting wall, the sound production unit comprisesa vibrating diaphragm for performing vibration sound production, the vibrating diaphragm is spaced apart from the housing to form a front sound cavity and a rear cavity, the sound guiding passage communicates the front sound cavity with the outside and forms a front cavity with the front sound cavity together, the loudspeaker box further comprises a surrounding wall formed by extending the innerside of the housing and a cover plate completely covering the surrounding wall, the surrounding wall is located at the outer side of the supporting wall, and the housing, the surrounding wall, the supporting wall and the cover plate are jointly enclosed to form an auxiliary sound cavity; and a through hole penetrating through the surrounding wall is formed in the surrounding wall, and the auxiliary sound cavity communicates with the front cavity through the through hole to form a resonant cavity structure of the front cavity. Compared with the related art, the loudspeaker box of the inventionhas excellent high frequency acoustic performance and good 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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