a waveguide

Abstract

The invention provides a waveguide tube comprising a connecting flange part, a first sound flow cavity part, an arc connecting part and a horn connecting part, wherein the a horn connecting part is provided with a sound outlet, the first sound flow cavity part is in the shape of an isosceles trapezoid, multiple circular arc tubular sound flow cavity channels communicating with a large end of the first sound flow cavity part are arranged in the arc connecting part, and the size of the bending curvature of the sound flow cavity channel sequentially increases from the middle position to both side positions of the sound outlet. When sound flow enters the first sound flow cavity part, the paths of the sound flow on both sides of the first sound flow cavity part are larger than the flow of the sound flow at the middle of the first sound flow cavity part, the paths of the sound flow cavity channels on both side positions of the sound outlet are smaller than the paths of the sound flow cavity channel at the middle position of the sound outlet, the sound flow cavity channel correct the paths of the sound flow at different positions to enable the sound flow to simultaneously pass through the sound outlet, in order to improve the sound production effect, and thus the sound production effect is good.

Description

technical field [0001] The invention relates to the field of sound box equipment, in particular to a waveguide. Background technique [0002] In the prior art sound box, the music playback frequency band of a single speaker has a certain width, which usually cannot fully meet the wide range of 20-20kHz of the human ear. Therefore, it is necessary to install bass and treble drivers at the same time to obtain a relatively wide Frequency Range. In order to obtain better sound quality, a horn is usually installed on the bass driver. On December 17, 2012, the application number is 2012105447652, which discloses a sound box, in which it discloses that the structure of the horn includes straight ends and curved ends. The straight end and the horn part, the part composed of the straight end and the curved end is the waveguide, and the cross section of the straight end part is a trapezoidal structure. The path of the sound flow is larger than the path of the sound flow in the middl...

AI Technical Summary

Problems solved by technology

[0002] In the prior art sound box, the music playback frequency band of a single speaker has a certain width, which usually cannot fully meet the wide range of 20-20kHz of the human ear. Therefore, it is necessary to install bass and treble drivers at the same time to obtain a relatively wide Frequency Range

In order to obtain better sound quality, a horn is usually installed on the bass driver. On December 17, 2012, the application number is 2012105447652, which discloses a sound box, in which it discloses that the structure of the horn includes straight ends and curved ends. The straight end and the horn part, the part composed of the straight end and the curved end is the waveguide, and the cross section of the straight end part is a trapezoidal structure. The path of the sound flow is larger than the path of the sound flow in the middle of the straight end cavity, so when the sound flow comes out from the horn, the sound effect is inconsistent, not at the same time, and the sound effect is poor

The existing straight end is generally made of fiberglass, and the curved end is made of wood. When the straight end is connected to the curved end, it is usually glued by hand and then fixed with screws. The connection process is complicated, and the connection accuracy is low. Not beautiful, the screw connection is not firm, it is easy to cause sound leakage, and the wooden material is easy to crack, which will also cause sound leakage

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