Sound production device and earphone

Abstract

The invention discloses a sound production device and an earphone, the sound production device comprises a magnet yoke, a high pitch unit and a low pitch unit, the magnet yoke comprises an accommodating part, and the accommodating part comprises a side wall and a bottom wall which are connected with each other to form an accommodating space; the high pitch unit comprises a first magnetic part, a high-pitch vibrating diaphragm and a high-pitch voice coil connected with the high-pitch vibrating diaphragm, the first magnetic part is placed in the accommodating space, a high-pitch magnetic gap for inserting the high-pitch voice coil is formed between the first magnetic part and the side wall, and the high-pitch vibrating diaphragm is a planar metal vibrating diaphragm; the low pitch unit comprises a second magnetic part, a low pitch vibrating diaphragm and a low pitch voice coil connected with the low pitch vibrating diaphragm, a low pitch magnetic gap allowing the low pitch voice coil to be inserted is formed between the second magnetic part and the side wall, and the low pitch unit and the high pitch unit are coaxially arranged. According to the invention, both the high-frequency performance and the low-frequency performance are considered, and the high-pitch unit is embedded into the low-pitch unit. The central magnetic circuit part of the bass unit is directly replaced, and the occupied space of the sound production device in the earphone is reduced while the magnetic flux is provided.

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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