Sound production device and electronic equipment

Abstract

The invention discloses a sound production device and electronic equipment, the sound production device comprises a vibration system and a magnetic circuit system, the magnetic circuit system is provided with a magnetic gap, the vibration system comprises: a vibrating diaphragm, wherein the vibrating diaphragm is made of rubber; a composite layer, wherein the center of the vibrating diaphragm andat least part of the composite layer are integrally formed; and a voice coil assembly which is connected to one side, deviating from the vibrating diaphragm, of the composite layer, wherein the voicecoil assembly is movably arranged in the magnetic gap. According to the technical scheme, the connecting effect of the vibrating diaphragm and the dome is guaranteed, the reliability of the loudspeaker is improved, and the quality of the loudspeaker is guaranteed.

Description

technical field [0001] The invention relates to the field of electroacoustic technology, in particular to a sound generating device and electronic equipment. Background technique [0002] In mobile smart devices such as mobile phones and tablets, speakers have been widely used. With the development of mobile smart devices, there are increasingly higher requirements for speakers in terms of voice and music quality, reliability, weight, size, etc. . The diaphragm of the loudspeaker is generally made of polymer materials, and the current development trend is to use rubber membranes as the diaphragm. If the traditional method is used to bond the rubber membrane and the dome, rubber membrane and the voice coil assembly with glue, the rubber membrane and the dome need to be bonded to the diaphragm through double-sided tape or glue, and then set on the other side of the dome. Glue, and then bonded with the voice coil assembly to form a vibration system. However, there is current...

AI Technical Summary

Problems solved by technology

However, there is currently no glue that is beneficial to the acoustic performance of the speaker and has strong viscosity. It is used to bond the rubber film to other parts, and due to the surface inertia of the rubber material, the two materials are chemically inert, and rubber products A small amount of silicone oil precipitated on the surface may make bonding very difficult, the solubility parameters of the rubber and the surface to be bonded are too different, the van der Waals force is not enough to adhere the two together, and the contact area between the rubber and the surface to be bonded is too small , poor physical compatibility, making the rubber less likely to stick

In this way, the connection effect between the diaphragm and the dome cannot be guaranteed, which affects the reliability of the speaker and reduces the quality of the speaker

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