Sound production device and electronic equipment

Abstract

The invention discloses a sound production device and electronic equipment, the sound production device comprises a shell, a vibration system, a magnetic circuit system and a supporting piece, an installation space is defined in the shell, a sound outlet is formed in the shell, the vibration system is arranged in the installation space, the vibration system comprises a vibrating diaphragm, a framework part and a voice coil, the vibrating diaphragm is connected with the shell and is opposite to the sound outlet, and the framework part is connected with the supporting piece. One end of the voice coil is connected with the vibrating diaphragm through the framework part, at least one part of the framework part extends along the length direction of the vibrating diaphragm, the plane where the voice coil is located is perpendicular to the plane where the vibrating diaphragm is located, and the magnetic circuit system is arranged in the mounting space and comprises a first magnetic circuit part and a second magnetic circuit part which are arranged at intervals along the width direction of the vibrating diaphragm; a magnetic gap for insertion of the voice coil is defined between the first magnetic circuit part and the second magnetic circuit part, and the supporting piece is arranged between the magnetic circuit system and the inner wall of the shell so as to define a vibration space of the vibrating diaphragm. The invention aims to provide the sound production device which meets the miniaturization design of electronic equipment and is good in high-frequency performance.

Description

technical field [0001] The invention relates to the technical field of electroacoustic conversion, in particular to a sound generating device and electronic equipment using the sound generating device. Background technique [0002] The sound generating device is an important component in electronic products, which is mainly used to convert electrical signals into acoustic signals. The development trend of electronic products is thinner and thinner, and the electronic products pay more and more attention to the user's music experience, so the sound-generating device is required to have better sound quality. In order to meet the thin design of electronic equipment, the installation space reserved for the sound generating device inside the electronic device is limited, so the structural design of the sound generating device is small, and the volume of the magnet in the corresponding magnetic circuit system becomes smaller, thereby reducing the magnetic circuit system. The BL v...

AI Technical Summary

Problems solved by technology

In order to meet the thin design of electronic equipment, the installation space reserved for the sound generating device inside the electronic device is limited, so the structural design of the sound generating device is small, and the volume of the magnet in the corresponding magnetic circuit system becomes smaller, thereby reducing the magnetic circuit system. BL value, which affects the sounding sensitivity and intermediate frequency performance of the sounding device, and affects the experience of electronic equipment

[0003] In order to solve the above problems, in the related art, a tweeter for head-mounted equipment is proposed, which uses a magnetic circuit system to drive a flat voice coil to achieve vibration and sound, although the BL of the magnetic circuit system can be improved to a certain extent. value, but the structural design of the tweeter is relatively complicated, the structural design of the vibration system and the fixing method between the magnetic circuit system and the shell are relatively complicated, thus reducing the practical performance of the tweeter

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