Loudspeaker and earphone

Abstract

The invention, which is suitable for the technical field of the earphone, provides a loudspeaker arranged inside the earphone. The loudspeaker comprises a front baffle plate, a rear cover, a vibration film, one pair of magnetic conductive plates, one pair of magnets, and a spheriform structure. The spheriform structure is accommodated into a front conduction hole partially and is fixed on the magnetic conductive plates; and the central axis of the spheriform structure and the central axis of the vibration film are in a collinear mode. Because the vibration film is arranged between the front baffle plate and the rear cover, an accommodation cavity is segmented into a front audio cavity and a rear audio cavity; and on the basis of the effect of the one pair of magnetic conductive plates and the magnets arranged in the front audio cavity and the rear audio cavity respectively, the vibration film vibrates when a signal is received so as to make sound. With the spheriform structure arranged on the magnetic conductive plates, the tone quality is adjusted, so that the lowest resonant frequency of the loudspeaker is reduced; and compared with the loudspeaker without any spheriform structure, the lowest resonant frequency of the loudspeaker with the spheriform structure is reduced by abount 10Hz. Moreover the overall dimension of the loudspeaker remains unchanged. Therefore, the low-pitch effect of the loudspeaker is improved under the circumstance that the dimension of the loudspeaker does not change.

Description

technical field [0001] The invention belongs to the technical field of earphones, in particular to a loudspeaker and an earphone with the loudspeaker. Background technique [0002] The lowest resonance frequency is commonly used in the earphone industry to define the lowest frequency of the effective output of the earphone sound. The lower the lowest resonance frequency, the lower the effective output frequency of the bass. The lowest resonance frequency is an important index for evaluating the bass dive of the earphone. When other factors are certain, the lower the lowest resonance frequency, the better the bass of the earphone. However, due to the particularity of earphone products, the diameter of the speaker cannot be made very large, so other auxiliary factors are needed to improve it. For example, the diameter of the loudspeaker is Φ, and its lowest resonance frequency is F1, which is about 80HZ, indicating that its effective low-frequency response starts from 80HZ. D...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a loudspeaker, which aims to solve the technical problem of how to reduce the lowest resonance frequency of the earphone to improve the bass effect in the prior art without increasing the size of the loudspeaker

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