Sound production device

Abstract

The invention provides a sound production device. The sound production device comprises a frame, a vibration system, a magnetic circuit system and a conducting terminal, two folding ring parts and conducting plates which are fixed to the frame; the vibration system comprises a vibrating diaphragm and a voice coil driving the vibrating diaphragm to vibrate, and the voice coil is electrically connected with the conducting terminal; the magnetic circuit system comprises a magnetic yoke, main magnetic steel and two auxiliary magnetic steel located on the two opposite sides of the main magnetic steel respectively; the folding ring parts are made of an insulating material and arranged on the other two opposite sides of the main magnetic steel respectively, and the conducting plates are embeddedinto the folding ring parts; and the two folding ring parts and the two auxiliary magnetic steel are arranged in a staggered and spaced mode, one side of each folding ring part is fixedly connected with the frame in an insulated mode, the other side of each folding ring part is fixedly connected with the end, far away from the vibrating diaphragm, of the voice coil in an insulated mode, and the voice coil and the conducting terminal are electrically connected with the conducting plates. Compared with the related technology, the sound production device is good in reliability and excellent in acoustic performance.

Description

【Technical field】 [0001] The invention relates to the field of sound and electricity, 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 basin frame, a vibration system respectively fixed to the basin frame, and a magnetic circuit system that drives the vibration system to vibrate and produce sound. The vibration system includes a diaphragm fixed to the basin frame and a driving The voice coil and voice coil lead wires ...

AI Technical Summary

Problems solved by technology

[0004] However, in the sound-generating device of the related art, the lead wire of the voice coil needs to be drawn out from the space between two adjacent secondary magnets, because the magnetic circuit system includes five magnets, so that the space for the lead wire of the voice coil to be drawn out is relatively small. Small, there is a high risk of disconnection, which affects its reliability; in addition, the vibration membrane suppression of this structure is limited, and the vibration system is easy to swing and cause bad

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