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 first vibration system, a second vibration system and a magnetic circuit system, and the first vibration system comprises a first vibrating diaphragm and a first voice coil. The second vibration system comprises a second vibrating diaphragm and two second voice coils. The magnetic circuit system comprises a first center magnet, two second center magnets, a first yoke plate and a second yoke plate. The two second center magnets are arranged on the two opposite sides of the first center magnet respectively. A first magnetic gap into which the first voice coil extends is formed on the peripheral side of the first center magnet, and the first center magnet is connected to the second yoke plate. A second magnetic gap into which the second voice coil extends is formed on the peripheral side of the second center magnet, and the second center magnet is connected to the first yoke plate. The first center magnet and the second center magnet are arranged between the first yoke plate and the second yoke plate in a tiled mode, and at least one of the first yoke plate and the second yoke plate is connected with the shell. According to the technical scheme, the thickness of the sound production device can be reduced while double-sided sound production is realized.

Description

[0001] The present invention claims the priority of the Chinese patent application with the application number 202110358638.2 filed on April 1, 2021 and the title of "sound-emitting device and electronic equipment", a part of which is incorporated into this application by reference. technical field [0002] The present invention relates to the technical field of sound energy conversion, in particular to a sound generating device and electronic equipment. Background technique [0003] In the current double-sided sound-emitting device, a support plate is usually used to support the central magnetic circuit assembly, that is, a central magnet is respectively provided on two opposite sides of the supporting plate, and the outer circumference of each central magnet forms a magnetic gap, and the two sides of the magnetic gap are formed. The voice coils extend into the two magnetic gaps respectively. However, in this setting, in order to ensure that the depth of each magnetic gap c...

AI Technical Summary

Problems solved by technology

However, in this setting, in order to ensure that the depth of each magnetic gap can satisfy the corresponding voice coil, it is necessary to make the thickness of each central magnet larger, that is, in a double-sided sounding device, it is equivalent to adding a central magnet. Thickness, resulting in an increase in the thickness of the double-sided sound emitting device, which is very unfavorable for product miniaturization

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