Sound production device

Abstract

The invention discloses a sound production device, which comprises a basin frame, a vibration system and a magnetic circuit system, and is characterized in that the basin frame comprises a first basinframe and a second basin frame; the vibration system comprises a first vibrating diaphragm, a second vibrating diaphragm, a voice coil and a framework, wherein the first vibrating diaphragm and the second vibrating diaphragm are respectively fixed on the sides, far away from each other, of the first basin frame and the second basin frame, the two opposite ends of the framework are respectively fixed on the voice coil and the second vibrating diaphragm, the framework and the magnetic circuit system are arranged at an interval, the first vibrating diaphragm, the second vibrating diaphragm, thefirst basin frame and the second basin frame jointly enclose an accommodating space, and the magnetic circuit system is accommodated in the accommodating space; and the magnetic circuit system comprises a magnet yoke, a main magnetic steel, two auxiliary magnetic steels and a clamping plate, wherein the magnet yoke, the main magnetic steel, the two auxiliary magnetic steels and the clamping plateare fixed on the second basin frame, and the clamping plate is fixed on first basin frame. Compared with the prior art, the sound production device is simple in configuration, good in acoustic performance and reliability and wide in application range.

Description

【Technical field】 [0001] The invention relates to the field of electroacoustic conversion, in particular to a sound generating device used in 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, sound-generating devices for playing sound are widely used in current smart mobile devices. [0003] The sound-generating device in the related art includes a pot frame, a vibration system respectively fixed on the pot frame and a magnetic circuit system with a magnetic gap; the vibration system includes a diaphragm fixed on the pot frame and inserted into the A magnetic gap to drive the diaphragm to vibrate the sound-producing voice co...

AI Technical Summary

Problems solved by technology

[0004] However, in the sound-generating device in the related art, the vibrating system is only one diaphragm, and its vibration sound is one side of the sound-generating device, which cannot meet the needs of special occasions requiring double-sided sounding

In addition, the sound-generating device has a three-magnetic circuit structure formed by the main magnet and the two auxiliary magnets, which makes the assembly complicated under the existing frame structure of the basin frame. In order to cooperate with the assembly of internal components, resulting in The overall space of the sound-generating device is relatively large

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