sound device

Abstract

The invention provides a sound-generating device, which includes a basin frame, a vibration system respectively fixed on the basin frame, and a magnetic circuit system that drives the vibration system to vibrate and produce sound; The voice coil assembly, the diaphragm includes a ring and a dome that is attached and fixed to the ring; the ring includes a vibration part, a ring part that bends and extends from the periphery of the vibration part, and a fixed part that bends and extends from the ring part to the basin frame. The vibrating part encloses a through hole, the fixed part is fixed on the basin frame, the ball top is fitted and fixed on the vibrating part and completely covers the through hole, the ball top includes the top of the cover and is bent and extended from the periphery of the top of the cover and fixed on the vibrating part The connecting part extends obliquely from the vibrating part toward or away from the magnetic circuit system, and the top of the cover extends obliquely from the side of the connecting part away from the vibrating part toward the direction away from or close to the magnetic circuit system. Compared with the related art, the acoustic performance of the sound emitting device of the present invention is superior.

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. Sound-generating devices for playing sound are widely used in smart mobile devices such as mobile phones. [0003] The sound-generating device in the related art includes a pot frame, a vibration system fixed on the pot frame, and a magnetic circuit system that drives the vibration system to vibrate and sound. The dome of the diaphragm, the diaphragm includes a vibrating part and a through hole passing through the vibrating part, the dome is fitted and fixed on the vibrating part and completely covers the through hole, wherein the dome It includes a first layer,...

AI Technical Summary

Problems solved by technology

[0004] However, when the size of the sound-generating device is large, thicker materials need to be used on the dome to ensure sufficient structural strength, thereby suppressing high-frequency split vibrations, which will lead to a heavier weight of the dome, which will reduce the sensitivity of the intermediate frequency. Makes the acoustic performance of the sounding device poor

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