Moving coil piezoelectric compound loudspeaker

Abstract

The invention relates to the technical field of loudspeakers, and especially relates to a moving coil piezoelectric compound loudspeaker. The moving coil piezoelectric compound loudspeaker comprises a shell and a supporting plate; the shell is provided with a sound outlet; the supporting plate is arranged at the inside of the shell; the supporting plate separates the shell into a moving coil cavity and a piezoelectric cavity; the moving coil cavity is communicated with the sound outlet; the inside of the moving coil cavity is provided with a moving coil unit; the inside of the piezoelectric cavity is provided with a piezoelectric vibrator; the supporting plate is provided with a sound guide hole; and the piezoelectric cavity is communicated with the moving coil cavity through the sound guide hole. According to the moving coil piezoelectric compound loudspeaker provided by the invention, the piezoelectric vibrator is added on the basis of an original moving-coil loudspeaker, and the piezoelectric vibrator compensates the sound effect and sound quality of the moving-coil loudspeaker at high frequency, so that the moving coil unit and the piezoelectric vibrator vibrate and produce a sound simultaneously to form a resonance, so as to widen the frequency response range and improve listening experience of users.

Description

technical field [0001] The invention relates to the technical field of loudspeakers, in particular to a moving-coil piezoelectric composite loudspeaker. Background technique [0002] Loudspeaker, also known as "horn", is a very commonly used electroacoustic transducer. The speaker emits sound by vibrating, thereby changing the pressure of the surrounding air. The existing dynamic speaker has the characteristics of soft sound, good bass effect and low price, and has become the most productive variety in the field of speaker products. However, the sound quality of this kind of speaker is poor at high frequencies. The frequency response of ordinary dynamic speakers begins to drop at 8KHz, and the frequency response of even high-end dynamic speakers will begin to drop rapidly at 9.5KHz, which affects the user's listening experience. [0003] In view of this, those skilled in the art need to develop a dynamic piezoelectric composite speaker, which compensates the high-frequency...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a dynamic piezoelectric composite speaker to solve the technical problems existing in the prior art that the dynamic speaker has poor high-frequency sound quality, limited frequency response width, and affects the user's auditory experience

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