Fish-mouth-shaped linear array horn and sound equipment

Abstract

The utility model provides a fish-mouth-shaped linear array horn which comprises a horn body, at least three sound channels which are not communicated with each other are formed in the horn body, the sound channels are respectively communicated with a throat opening and a sound production opening which are arranged at two ends of the horn body, and the sound channels are arranged up and down and are in a fish-mouth shape. A compression phase plug is arranged in each sound channel, and the distance between the compression phase plug and the inner side wall of the sound channel is smaller than 10 mm. According to the fish-mouth-shaped linear array horn and the sound box provided by the utility model, a plurality of high-pitch throats are arranged in a single horn, the volume is smaller when the high-pitch upper limit reaches 20KHZ, the volume of the sound box is convenient to reduce, the hearing feeling is smooth, and the tone quality is uniform.

Description

Technical Field

[0001] This utility model relates to the field of broadcasting equipment technology, specifically to a fish-mouth-shaped linear array horn and a speaker. Background Technology

[0002] Fish-mouth tweeters typically feature a fish-mouth shaped compression chamber within the compressor. This shape helps to initially compress and focus the sound, allowing sound waves to propagate more concentratedly within the chamber and reducing sound attenuation. Therefore, they are commonly used in line array speaker systems. A line array speaker system consists of a group of closely spaced radiating units arranged in a straight line, with identical amplitude and phase. Through linear transmission, it increases transmission distance and reduces sound attenuation during transmission. Existing line array speaker systems usually use only a single fish-mouth horn in each speaker enclosure to avoid interference during sound transmission. However, this setup also reduces high-frequency performance, making it difficult to meet user needs.

[0003] Therefore, there is an urgent need for a horn that can concentrate high-frequency sounds and reduce interference. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model proposes a fish-mouth-shaped linear array horn and speaker, which has multiple high-frequency throats within a single horn. While achieving a high-frequency upper limit of 20kHz, it is also smaller in size, making it easier to reduce the size of the speaker and providing a smooth listening experience with uniform tone.

[0005] The technical solution of this utility model is implemented as follows:

[0006] A fish-mouth-shaped linear array horn includes a horn body with at least three non-interconnected sound channels formed within it. The sound channels are respectively connected to the throat and the sound outlet at both ends of the horn body. The sound channels are arranged vertically and are fish-mouth shaped. Each sound channel is provided with a compression phase plug, and the distance between the compression phase plug and the inner wall of the sound channel is less than 10mm.

[0007] A further technical solution in this embodiment is that the compression phase plug is mounted in the middle of the sound channel, and the central axis of the compression phase plug coincides with the central axis of the throat.

[0008] A further technical solution in this embodiment is that the compression phase plug includes an integrally formed outwardly expanding conical guide portion and an inwardly concave slope.

[0009] A further technical solution in this embodiment is that the included angle between the two planes of the inwardly tapered surface is 20° to 45°.

[0010] A further technical solution in this embodiment is that the vertical distance between each point on the compression phase plug and the inner sidewall is equal.

[0011] A further technical solution in this embodiment is that the diameter of the throat is 26mm.

[0012] A further technical solution in this embodiment is that it also includes a guide plate, which is disposed on the side of the horn body near the sound outlet, and the guide plate is arc-shaped and spreads outward.

[0013] A further technical solution in this embodiment is that the diffusion angle of the guide plate is between 0° and 10°.

[0014] This embodiment also proposes an audio system, including a fish-mouth-shaped linear array horn as described in any of the preceding embodiments.

[0015] Compared with the prior art, the present invention has the following advantages:

[0016] This invention achieves efficient sound wave guidance and phase consistency through the synergistic effect of a fish-mouth-shaped sound channel and a compression phase plug, making it particularly suitable for line array speaker systems. The horn employs a fish-mouth splitter design, which concentrates ultra-high frequency energy to meet the long-distance transmission requirements of line array speaker systems. Simultaneously, the 10° vertical diffusion angle effectively reduces interference between speakers, improving the listener experience. Multiple independent sound channels enhance sound loudness and treble performance within a limited speaker space. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a three-dimensional schematic diagram of a fish-mouth-shaped linear array horn in this embodiment;

[0019] Figure 2 This is an exploded view of a fish-mouth-shaped linear array horn in this embodiment;

[0020] Figure 3 for Figure 1 Rear 3D view.

[0021] Attached diagram labels: 1-Sound channel; 2-Throat opening; 3-Voice outlet; 4-Compression phase plug; 41-Outwardly expanding conical guide; 42-Inwardly contracting slope; Detailed Implementation

[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," "third," and "fourth," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] like Figures 1 to 3 As shown, this utility model discloses a fish-mouth-shaped linear array horn, comprising a horn body with at least three independent sound channels formed within it. These sound channels are connected to the throat and sound outlet at both ends of the horn body, respectively, and are arranged vertically in a fish-mouth shape. Each sound channel contains a compression phase plug, with the distance between the compression phase plug and the inner wall of the sound channel being less than 10mm. This utility model, through the cooperation of multiple independent sound channels and compression phase plugs, achieves efficient sound wave guidance and phase consistency, solving the problem of insufficient high-frequency upper limit in traditional fish-mouth-shaped horns, while also achieving more comprehensive sound performance in a small-volume speaker.

[0026] In this embodiment, a compression phase plug is mounted in the middle of the sound channel, with its central axis coinciding with the central axis of the throat. The compression phase plug includes an integrally formed outwardly expanding tapered guide section and an inwardly concave slope, with the angle between the two planes of the inwardly concave slope being 20°–45°. Through the cooperation of the outwardly expanding tapered guide section and the inwardly concave slope, sound waves are uniformly compressed and guided when passing through the compression phase plug, reducing sound wave phase distortion and improving the transmission efficiency of high-frequency sound waves. The vertical distance between all points on the compression phase plug and the inner sidewall is equal, ensuring uniform propagation of sound waves within the channel and avoiding sound wave interference.

[0027] In this embodiment, the throat diameter is 26mm, suitable for matching with common tweeter drivers. The fish-mouth design of the sound channel allows sound waves to gradually diffuse within the channel. Simultaneously, through the phase correction effect of the compression phase plug, the sound waves can form a uniform wavefront at the phonon outlet, improving the sound field coverage and timbre uniformity. Furthermore, a guide plate is provided on the side of the horn body near the phonon outlet. The guide plate is arc-shaped and diffuses outwards, with a diffusion angle between 0° and 10°. The arc-shaped design of the guide plate further guides the uniform diffusion of sound waves, concentrating sound field energy while ensuring sound wave directivity and increasing sound wave transmission distance.

[0028] This invention achieves efficient sound wave guidance and phase consistency through the synergistic effect of a fish-mouth-shaped sound channel and a compression phase plug, making it particularly suitable for line array speaker systems. The horn employs a fish-mouth splitter design, which concentrates ultra-high frequency energy to meet the long-distance transmission requirements of line array speaker systems. Simultaneously, the 10° vertical diffusion angle effectively reduces interference between speakers, improving the listener experience. Multiple independent sound channels enhance sound loudness and treble performance within a limited speaker space, while the arc-shaped design of the guide plate further optimizes the sound field coverage and timbre uniformity. For those skilled in the art, various other corresponding changes and modifications can be made based on the above-described technical solutions and concepts, and all such changes and modifications should fall within the protection scope of the claims of this invention.

Claims

1. A fish-mouth shaped linear array horn, comprising a horn body, characterized in that, At least three non-interconnected sound channels (1) are formed within the horn body. The sound channels (1) are respectively connected to the throat (2) and the sound outlet (3) at both ends of the horn body. The sound channels (1) are arranged vertically and are fish-mouth shaped. Each sound channel (1) is provided with a compression phase plug (4). The distance between the compression phase plug (4) and the inner wall of the sound channel (1) is less than 10mm. The compression phase plug (4) is mounted in the middle of the sound channel (1), and the central axis of the compression phase plug (4) coincides with the central axis of the throat (2). The compression phase plug (4) includes an integrally formed outwardly expanding conical guide section (41) and an inwardly concave slope (42).

2. The fish-mouth-shaped linear array horn according to claim 1, characterized in that, The included angle between the two planes of the inward inclined plane (42) is 20° to 45°.

3. The fish-mouth-shaped linear array horn according to claim 1, characterized in that, The vertical distance between each point on the compression phase plug (4) and the inner sidewall is equal.

4. A fish-mouth-shaped linear array horn according to claim 1, characterized in that, The diameter of the throat (2) is 26 mm.

5. A fish-mouth-shaped linear array horn according to claim 1, characterized in that, It also includes a guide plate, which is disposed on the side of the horn body near the sound outlet (3), and the guide plate is arc-shaped and spreads outward.

6. A fish-mouth-shaped linear array horn according to claim 5, characterized in that, The diffusion angle of the guide plate is between 0° and 10°.

7. A sound system, characterized in that, Including the fish-mouth type linear array horn as described in any one of claims 1-6.

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