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Linear array sound box

A sound box and line array technology, applied in the field of sound box, can solve the problems affecting the sound quality and sound effect of line array speakers, residual spherical sound waves, side lobes of plane sound waves, etc., so as to reduce material cost and weight, reduce manufacturing cost and weight, Improve the effect of fixing firmness

Pending Publication Date: 2022-04-29
NINGBO TONWEL AUDIO
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0002] Line array speakers are devices used to convert electrical signals into sound signals. Currently, line array speakers on the market mainly include speaker cabinets, speakers, waveguides and horn front shells. The waveguides are fixed in the speaker cabinets. The entrance is fixed, the front shell of the horn is connected with the sound wave outlet end of the waveguide, and the front shell of the horn is fixed with the front side of the speaker box. The spherical sound wave generated by the speaker is converted into a plane sound wave and then the sound wave signal is transmitted outward; however, in the current line array speakers on the market, the corner formed by the inner wall of the rear side of the horn front shell and the inner wall of the front side of the waveguide is located between the horn front shell and In this way, when the opening angle of the horn front shell installed on the front side of the speaker box is less than 100 degrees, it will affect the generation of plane sound waves at the front end of the waveguide, that is, the plane sound waves transmitted from the waveguide will remain There are spherical sound waves. In this way, there will be a phase difference in the plane sound waves propagating outward from the front shell of the horn, that is, there will be side lobes in the plane sound waves, which will affect the sound quality and sound effect of the line array speakers

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Embodiment Construction

[0031] A number of embodiments of the present invention will be disclosed in the following figures. For the sake of clarity, many practical details will be described together in the following description. It should be understood, however, that these practical details should not be used to limit the invention. That is, in some embodiments of the invention, these practical details are not necessary. In addition, for the sake of simplifying the drawings, some well-known and commonly used structures and components will be shown in a simple schematic manner in the drawings.

[0032] In addition, in the present invention, descriptions such as "first", "second" and so on are used for description purposes only, and do not refer to the meaning of sequence or sequence, nor are they used to limit the present invention, but are only for the purpose of distinguishing the following The components or operations described by the same technical terms are merely used, but should not be underst...

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Abstract

A linear array sound box disclosed by the present invention comprises a sound box body, a waveguide and a horn front shell, an installation cavity is arranged in the sound box body, the waveguide is fixed in the installation cavity, the front end of the waveguide is provided with a rectangular sound wave outlet, the rear end of the waveguide is provided with a circular sound wave inlet, and the horn front shell is fixed at the front end of the installation cavity. The horn front shell is connected with the sound wave outlet. The waveguide comprises a shell and a middle body installed in the shell, two curved surfaces which are vertically symmetrical are arranged on the inner wall of the rear end of the shell, two inclined surfaces which are vertically symmetrical are arranged on the inner wall of the front end of the shell, the rear end of each inclined surface is connected with the front end of the curved surface on the corresponding side, and the sound making angle of the horn front shell in the vertical direction is smaller than 90 degrees. The inner wall of the rear end of the horn front shell is provided with two extending surfaces which are symmetrically arranged up and down, and each extending surface coincides with the inclined surface on the side where the extending surface is located; the sound quality and the sound production effect of the linear array sound box can be improved.

Description

technical field [0001] The invention relates to the technical field of sound boxes, in particular to a line array sound box. Background technique [0002] Line array speakers are devices used to convert electrical signals into sound signals. Currently, line array speakers on the market mainly include speaker cabinets, speakers, waveguides and horn front shells. The waveguides are fixed in the speaker cabinets. The entrance is fixed, the front shell of the horn is connected with the sound wave outlet end of the waveguide, and the front shell of the horn is fixed with the front side of the speaker box. The spherical sound wave generated by the speaker is converted into a plane sound wave and then the sound wave signal is transmitted outward; however, in the current line array speakers on the market, the corner formed by the inner wall of the rear side of the horn front shell and the inner wall of the front side of the waveguide is located between the horn front shell and In t...

Claims

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Application Information

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IPC IPC(8): H04R1/22H04R3/02
CPCH04R1/22H04R3/02
Inventor 顾舜杨奇峰张屹
Owner NINGBO TONWEL AUDIO
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