Loudspeaker box

Abstract

The invention provides a loudspeaker box. The loudspeaker box comprises a shell and a loudspeaker unit which is contained in a shell. The diaphragm of the loudspeaker unit and the shell are spaced to form a front sound cavity. The front sound cavity and the outside world are communicated to form a sound outlet channel. The front sound cavity and the sound outlet channel form a front cavity. The loudspeaker box also comprises a through hole formed corresponding to the front cavity area, serrated clamp slots which are arranged from the shell and are away from the outer wall of the front cavity, a plurality of mounting holes, and an elastic cover plate which covers the through hole. The elastic cover plate is equipped with serrated lug bosses and a plurality of columnar connecting elements. The mounting holes and the columnar connecting elements are in one-to-one correspondence and matching connection. The serrated clamp slots and the serrated lug bosses are in one-to-one correspondence and matching connection. The Young modulus or strength of the elastic cover plate is smaller than the Young modulus or strength of the shell. According to the loudspeaker box provided by the invention, the front cavity resonance can be weakened, a resonance peak can be reduced, and the distortion is improved.

Description

【Technical field】 [0001] The invention relates to the technical field of electroacoustic conversion, in particular to a speaker box. 【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 includes a housing, and a speaker unit housed in the housing. The speaker unit includes a diaphragm for vibrating and sounding. The diaphragm is spaced apart from the housing to form a front acoustic cavity. The front acoustic cavity It communicates with the sound guide channel to form the front cavity. In the related art, the shell is made of hard plastic material and ...

AI Technical Summary

Problems solved by technology

The damping of the rigid wall is small, and the vibration amplitude is small, the radiation energy is limited, and the energy of the cavity cannot be effectively transmitted, so the energy of certain specified frequencies cannot be absorbed

The front cavity resonance is generated when the speaker box emits sound. Due to the resonance effect, a resonance peak is formed in the middle and high frequencies, and at the same time, distortion peaks such as 2nd and 3rd times will be generated in the distortion, which will affect the sense of hearing.

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