Mechanical frequency division voice box

Abstract

The invention discloses a mechanical frequency division voice box. The mechanical frequency division voice box structurally comprises a box body, a loudspeaker mounted on the box body and a mechanical frequency divider disposed in the box body. The mechanical frequency divider comprises a plurality of filter tubes different in inner diameter and height and a partition for dividing a cavity of the box body into a filter cavity and a frequency mixing cavity. The filter cavity is a closed cavity in the box body, the loudspeaker and the filter tube are both located in the filter cavity, one end of the filter tube is connected to the partition to communicate the filter cavity with the frequency mixing cavity. The box body is provided with an opening for opening the frequency mixing cavity. Purely physical frequency division is performed to sound wave accounting for about 90% of the rear of a cone of the loudspeaker, and accordingly manufacturing cost of the frequency divider is reduced, design structure is simplified, sound restoration is well effective, the voice box produces sound naturally and smoothly, distortion is small, high, medium and low pitches are smoothly transitional, restored sound is real and natural, and effect of the mechanical frequency division voice box is comparable to that of a voice box configured with a high-grade electronic frequency divider.

Description

technical field [0001] The invention relates to a sound box, in particular to a mechanical frequency division sound box. Background technique [0002] A speaker generally includes three parts: a cabinet, a frequency divider, and a speaker. The frequency divider is the "brain" of the speaker, which has a great influence on the sound quality. The function of the frequency divider is to distinguish the sound signals of different frequency bands, amplify them separately, and then send them to the speakers of the corresponding frequency band to play them. There are two types of frequency dividers, power frequency dividers and electronic frequency dividers, but they are all composed of electronic circuits. From the perspective of circuit structure, the frequency divider is essentially composed of capacitors and inductance coils, and can be divided into LC filter circuits of treble channel, midrange channel and bass channel. The treble channel is a high-pass filter, which only al...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a mechanical frequency division speaker with low cost, simple structure and good timbre to solve the problem that the frequency division effect of the frequency divider in the traditional speaker is determined by the price of components and the complexity of the circuit structure. Constraints

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