Sound compression guiding device

Abstract

The invention discloses a sound compression guiding device, which comprises a sound transmission channel, a sound gathering device for compressing and gathering sound waves emitted by a medium-low frequency sound production unit, and a horn, and the sound gathering device is communicated with the horn through the sound transmission channel; the sound gathering device comprises at least two sound gathering units which are concentrically arranged in a sleeved mode, each sound gathering unit is in an inverted cone shape and comprises a first end with a small size and a second end with a large size, in different sound gathering units, the sizes of the first ends and the sizes of the second ends are different, and the size proportions of the first ends and the second ends in the different soundgathering units are the same. The first end is fixedly connected to the sound transmission channel, and a sound transmission gap for transmitting sound waves to the sound transmission channel is arranged between the adjacent sound gathering units. Through cooperative use of the sound gathering device, the sound transmission channel and the horn, sound waves are gathered by the sound gathering device and then diffused by the horn, so that the use efficiency of sound energy of the low and medium frequency sound production unit is greatly improved, the size of the loudspeaker is reasonably reduced, and the loudspeaker can be suitable for various sound amplification occasions.

Description

technical field [0001] The invention relates to the field of acoustic devices, in particular to a sound compression guiding device. Background technique [0002] The frequency wavelength corresponding to the mid-bass frequency band (60Hz-600Hz) is from 5.73 meters to 0.573 meters. Usually, this frequency band emitted by the speaker cannot control the projection of energy. The energy in this frequency band will spread in a manner close to spherical diffusion. Make energy use less efficient. The traditional method of controlling sound projection in the mid-bass range is to increase the horn size of the speaker, but this method cannot improve the efficiency of using sound energy, and at the same time, the size is too large to be universally applicable. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a sound compression guide device with a moderate volume and effectively improve energy utilization efficiency in view...

AI Technical Summary

Problems solved by technology

[0002] The frequency wavelength corresponding to the mid-bass frequency band (60Hz-600Hz) is from 5.73 meters to 0.573 meters. Usually, this frequency band emitted by the speaker cannot control the projection of energy. The energy in this frequency band will spread in a manner close to spherical diffusion. make energy use less efficient

The traditional method of controlling sound projection in the mid-bass range is to increase the horn size of the speaker, but this method cannot improve the efficiency of using sound energy, and at the same time, the size is too large to be universally applicable

Images