Sound production device and earphone

Abstract

The invention discloses a sound production device and an earphone, and the sound production device comprises a shell, a high-pitch unit and a low-pitch unit; the high-pitch unit is fixed to the shell and located in the shell, the high-pitch unit comprises a magnetic conduction shell, a magnetic conduction vibrating diaphragm and a high-pitch magnetic circuit system, the magnetic conduction vibrating diaphragm and the high-pitch magnetic circuit system are arranged in the magnetic conduction shell, and the magnetic conduction vibrating diaphragm is suspended in the high-pitch magnetic circuit system. The high pitch magnetic circuit system is used for generating an alternating electromagnetic field to drive the magnetic conductive diaphragm to vibrate. The bass unit is fixed with the shell and located in the shell, the bass unit comprises a bass magnetic circuit assembly, a bass vibrating diaphragm and a bass voice coil connected with the bass vibrating diaphragm, a bass magnetic gap for the insertion of the bass voice coil is formed between the bass magnetic circuit assembly and the magnetic conductive shell, and the bass unit and the treble unit are coaxially arranged. According to the sound production device, the high-frequency performance and the low-frequency performance are both considered, the sound-electricity conversion efficiency of the high-pitch unit is high, the occupied space of the sound production device in the earphone is reduced, and the magnetic circuit efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of electroacoustic conversion, in particular to a sound generating device and earphones. Background technique [0002] The sounding device of conventional earphones generally only includes one vibration unit. This structural design is relatively simple, but it cannot take into account the performance and sound quality of different frequency bands of the product at high and low frequencies. The sound quality is poor, and some earphones have low frequency The performance is better, and some are better at high frequencies. The sound generating device of the double vibration unit can meet the low frequency and high frequency work at the same time, which can complement and improve the performance curve of the product and the sound quality of listening. However, the existing sound generating device with dual vibration units generally adopts an external stacking type, that is, the tweeter and the bass unit are up ...

AI Technical Summary

Problems solved by technology

[0003] The main purpose of the present invention is to provide a sounding device and an earphone, aiming to solve the technical problem that the existing sounding device that can satisfy both high-frequency and low-frequency effects occupies a large space

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