An adjustable angle asymmetrical high frequency acoustic wave controller

Abstract

The invention discloses an asymmetrical high-frequency sound wave controller with an angle adjustable. The asymmetrical high-frequency sound wave controller with the angle adjustable comprises a conic core a, a conic core b, a shell a, two baffles x and two baffles y. The conic core a is a cone with a concave-convex surface and the conic core b is an irregular circular truncated cone which is obtained in the mode that the circular truncated cone is symmetrically cut along the diameter of the end face of the larger end in an inclined mode. The irregular circular truncated cone is composed of a semicircular truncated cone x with a concave surface and a semicircular truncated cone y with a convex surface. The semicircular truncated cone x is cut in an inclined mode so that two symmetrical 1 / 4-oval surfaces x can be obtained and the semicircular truncated cone y is cut in an inclined mode so that two symmetric 1 / 4-oval surfaces y can be obtained. The shell a is arranged on the conic core a in a sleeved mode, the small diameter end and the large diameter end of the shell a correspond to the conic node position and the conic bottom position of the conic core a respectively. A high-pitch inlet of the asymmetrical high-frequency sound wave controller is a circular plane, high pitch passes through a gap between the conic core a and the shell a and then is emitted and makes contact with natural space, and the baffles only guide the high pitch in part of the natural space, so that an outlet becomes a C-shaped stereoscopic face facing upwards, forwards and downwards, and therefore the work efficiency of a voice box is high.

Description

technical field [0001] The invention relates to an angle-adjustable asymmetrical high-frequency sound wave controller, which can be used in conventional sound boxes or line array sound boxes. Background technique [0002] At present, there is a cylindrical sound horn on the market. It wraps a conical core in a 360-degree fully enclosed horn shell. There is only one plane inlet and one plane outlet. One end of a conical core is on the plane of the outlet, and the other One end is on the plane of the inlet; among them, the conical core is made of hard material, which is formed after symmetrical oblique cutting of the large conical head, such as figure 1 , Add a hard shell outside the conical core, keep a certain gap between the shell and the core, and the treble passes through the gap. Its purpose is to seamlessly splice the sound between each tweeter of the line array speaker. [0003] The disadvantages of the existing cylindrical sound horn are: 1) the horizontal angle can...

AI Technical Summary

Problems solved by technology

[0003] The disadvantages of the existing cylindrical sound horn are: 1) the horizontal angle can only be adjusted by the external horn, and the volume will inevitably increase; 2) the control angle range of the external horn can only be about 30 degrees to the minimum value, and if it is used in the matrix column, it will Acoustic interference with crossed sound angles occurs, that is, the sound cancels out between the tweeters; 3) The shell surfaces at both ends of the short side close to the rectangular outlet (at an angle with the outlet surface) are not opened but completely closed, and the sound can only be heard from the front The rectangular outlet goes out, so the vertical (the direction of the extension line extending the long side of the square outlet) control angle is too narrow, just for the small angle between each tweeter (the high-frequency gap will appear when the angle exceeds 6 degrees) The sound is seamlessly spliced But the design is not easy to use in a conventional single speaker

Can not take into account the needs of far and near sound field

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