Vibration sounding device and electronic product

Abstract

The invention discloses a vibration sounding device and an electronic product. The device comprises a shell, a fixing piece and a driving assembly, at least part of the shell is configured to vibraterelative to the fixing piece; the driving assembly comprises at least one coil and a Halbach magnet, the coil is fixedly connected with the fixing piece, the Halbach magnet is fixedly connected with the shell, or the Halbach magnet is fixedly connected with the fixing piece, and the coil is fixedly connected with the shell, wherein the plane where the coil is located is perpendicular to the part,used for vibration, of the shell, the coil is located on the side portion of the Halbach magnet, the annular end face of the coil faces the Halbach magnet, and the coil penetrates through a magnetic field enhancement area of the Halbach magnet.

Description

technical field [0001] The present invention relates to the technical field of electroacoustic conversion, and more specifically, to a vibration and sound generating device and electronic products. Background technique [0002] The sound generating device is an important electro-acoustic transducer element in electronic products, which is used to convert the current signal into sound. With the rapid development of electronic products in recent years, the sound generating devices applied to electronic products have also been improved accordingly. [0003] The principle adopted by the traditional sound generating device for the handset of the mobile phone is that the diaphragm pushes the air to vibrate to produce sound. Recently, as the full screen has become the main development direction of mobile phones, how to realize the handset function without the design of the screen opening, and at the same time have a better listening experience, is currently facing a technical prob...

AI Technical Summary

Problems solved by technology

[0009] However, this technical solution also has the problem of taking up a large space, which is not conducive to the thinner and lighter structural design of mobile phones.

On the premise that the screen 01 of the mobile phone can produce a sufficiently large amplitude, there needs to be enough space between the two magnets, otherwise it will cause a collision between the magnet and the electromagnet 02, which will seriously affect the acoustic performance of the screen sound

For this reason, it will inevitably take up more space in the thickness direction of the mobile phone

[0010] In addition, the magnet is usually a whole piece of magnet, the magnetic field density of this kind of magnet is low, the utilization rate of the magnetic field is low, and the driving force of electronic products is small

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