Loudspeaker, terminal and method for realizing sound playing

Abstract

The invention relates to a loudspeaker, a terminal and a method for realizing sound playing. The loudspeaker comprises a coil, a flexible circuit board FPC copper clad circuit, a magnetic circuit part and a sound diaphragm; the coil is used for loading a first electric signal of sound to be played so as to generate a first electric field; the flexible circuit board FPC copper clad circuit is used for generating a second electric signal according to the first electric signal, and loading the second electric signal so as to generate a second electric field; the magnetic circuit part is used for generating a magnetic field; and the sound diaphragm is used for generating vibration frequency and vibration amplitude under the action of the first electric field, the second electric field and the magnetic field so as to perform sound playing. By means of the scheme in the embodiment of the invention, the vibration frequency and the vibration amplitude of the sound diaphragm are changed through the second electric field generated by the FPC copper clad circuit; a soundbox is unnecessary; therefore, the volume of the loudspeaker is reduced; furthermore, the second electric signal can be adjusted according to practical requirements; and thus, the sound adjusting effect is improved.

Description

technical field [0001] This article involves but is not limited to terminal technology, especially a speaker, a terminal and a method for realizing sound playback. Background technique [0002] With the portability of mobile terminals and Internet access products, the requirements for hearing are getting higher and higher. image 3 It is a schematic diagram of the structure of the relevant horn. Such as image 3 As shown, the relevant speaker includes a coil 2 , a sound membrane 1 , a speaker 6 , a magnetic steel 4 , a magnetic conductive sheet 5 and a bracket 3 . Its working principle roughly includes: load the signal to be played to the coil 2 to generate an electric field, the magnetic steel 4 and the magnetic permeable sheet 5 generate a magnetic field, and the generated electric field and magnetic field exert force on the sound membrane, so that the sound membrane 2 generates a vibration frequency and the vibration amplitude, the speaker 6 affects air convection so as ...

AI Technical Summary

Problems solved by technology

[0003] During the sound playing process of the related speakers, the speaker 6 takes up a large volume, which cannot meet the portability requirements of the mobile terminal, and because the resistance generated by the speaker 6 cannot be changed, the sound adjustment effect is poor

If the sound box 6 is directly removed in order to reduce the volume, the sound membrane 2 will be easily damaged, and the sound played will easily produce a broken sound.

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