Asymmetric acoustic horn

Abstract

The utility model discloses asymmetric acoustic horn, including shell, the one end of shell forms the sound source exit of gradually enlarging diameter, and the other end forms the sound source entrance, the inside wall of shell forms the loud -speaking space, is equipped with a plurality of lattice piece in the lower part connection of loud -speaking space, and the sound guide piece for distinguishing the upper functional area and lower functional area in loud -speaking space is equipped with in the middle part connection, the utility model discloses compared with prior art's advantages are in: provide a kind of convenient operation use, can accurate control sound wave radiation direction, satisfy the sound amplification demand of different distance, optimize the sound energy distribution of far, near field asymmetric acoustic horn.

Description

Technical Field

[0001] This utility model relates to the field of acoustic equipment technology, specifically to asymmetric acoustic horns. Background Technology

[0002] In a sound reinforcement system, the acoustic horn is a key component, its function being to effectively radiate and propagate sound emitted from a sound source, thereby increasing the sound's propagation distance and coverage.

[0003] Traditional acoustic horns mostly employ a symmetrical structural design, which has some limitations in terms of sound radiation.

[0004] On the one hand, the acoustic horn with a symmetrical structure is difficult to optimize the sound energy distribution in both the far and near fields at the same time. When amplifying sound in the far field, there may be a problem of high frequency attenuation being too fast, resulting in insufficient clarity and penetration of the sound. When amplifying sound in the near field, the sound energy may be overly concentrated, resulting in uneven sound received by the front row listeners, with some areas having too much sound and others having too little sound, affecting the listening experience.

[0005] On the other hand, traditional acoustic horns are difficult to precisely control the radiation direction of sound waves, and cannot effectively guide and distribute sound waves according to different usage scenarios and sound reinforcement needs, resulting in low sound propagation efficiency and unsatisfactory sound reinforcement effect. Utility Model Content

[0006] (I) Problems to be solved

[0007] The technical problem to be solved by this utility model is to overcome the above-mentioned technical defects and provide an asymmetric acoustic horn that is easy to operate and use, can accurately control the direction of sound wave radiation, meet the sound amplification needs of different distances, and optimize the sound energy distribution in the far and near fields.

[0008] (II) Technical Solution

[0009] To solve the above-mentioned technical problems, the technical solution provided by this utility model is: an asymmetric acoustic horn, including a shell, one end of which forms a sound source outlet with a gradually increasing diameter, and the other end of which forms a sound source inlet;

[0010] The inner wall of the outer shell forms a sound-speaking space. Several grid plates are connected to the lower part of the sound-speaking space, and a sound guide plate is connected to the middle part to distinguish the upper and lower functional areas of the sound-speaking space.

[0011] As an improvement, both the sound guide plate and the grid plate are extended along the sound transmission direction to the sound source outlet.

[0012] As an improvement, both the sound guide plate and the grid plate are arranged in an arc shape.

[0013] As an improvement, a sound mounting ring is fitted on the outer side of the sound source inlet.

[0014] As an improvement, the sound guide plate is positioned opposite to the inner arc surface of the uppermost grid plate.

[0015] As an improvement, the end of the sound source outlet is rectangular.

[0016] (III) Beneficial Effects

[0017] The advantages of this utility model compared with the prior art are: through the unique structural design of left-right symmetry and top-bottom asymmetry, as well as the reasonable layout of the sound guide plate and grid plate, the radiation direction of the sound wave can be precisely controlled, so that the sound can propagate in the predetermined direction and range, thereby improving the sound propagation efficiency and sound amplification effect.

[0018] The asymmetrical division of labor between the upper and lower sections optimizes the sound energy distribution in both the far and near fields. In the far field, the sound has sufficient penetration and clarity; in the near field, the sound coverage is uniform, avoiding excessive concentration of sound energy. This gives the overall sound reinforcement system both penetration and detail, providing listeners with a better auditory experience. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of an asymmetric acoustic horn.

[0020] Figure 2 This is a schematic diagram of the second perspective of an asymmetric acoustic horn.

[0021] Figure 3 This is a structural schematic diagram of an asymmetric acoustic horn cross-section.

[0022] As shown in the figure: 1. Outer shell; 2. Sound source outlet; 3. Sound source inlet; 4. Speaker space; 5. Grid plate; 6. Sound guide plate; 7. Sound mounting ring. Detailed Implementation

[0023] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. Identical components are indicated by the same reference numerals.

[0024] It should be noted that the terms “front,” “back,” “left,” “right,” “up,” and “down” used in the following description refer to the directions shown in the attached diagram, while the terms “inside” and “outside” refer to the directions toward or away from the geometric center of a specific component, respectively.

[0025] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly associated with those skilled in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0027] To make the content of this utility model easier to understand, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0028] Please refer to the appendix carefully. Figure 1-3 An asymmetric acoustic horn includes a housing 1, one end of which has a sound source outlet 2 with a gradually increasing diameter, and the other end has a sound source inlet 3.

[0029] The inner wall of the outer shell 1 forms a sound-speaking space 4. Several grid plates 5 are connected to the lower part of the sound-speaking space 4, and a sound guide plate 6 is connected to the middle part to distinguish the upper and lower functional areas of the sound-speaking space 4. The sound guide plate 6 and the grid plates 5 are both extended along the sound transmission direction to the sound source outlet 2.

[0030] In use, both the sound guide plate 6 and the grid plate 5 are arranged in an arc shape, and the inner arc surface of the sound guide plate 6 and the uppermost grid plate 5 are arranged opposite each other.

[0031] In use, the end of the sound source outlet 2 is rectangular, and the outer side of the sound source inlet 3 is fitted with a sound mounting ring 7.

[0032] In specific implementation of this utility model:

[0033] It adopts a unique structure that is symmetrical on the left and right and asymmetrical on the top and bottom, which precisely controls the direction of sound wave radiation and meets the sound amplification needs at different distances.

[0034] The upper part adopts an exponential design with gradually expanding openings to ensure efficient transmission of sound waves to medium and long distances, reduce high-frequency attenuation, and is suitable for far-field sound reinforcement scenarios such as theaters and outdoor spaces.

[0035] The lower part adopts a multi-grid structure to disperse sound waves to a wider vertical angle, enhance the uniformity of coverage at medium and close distances, allow front-row listeners to obtain clear and full sound, and avoid excessive concentration of sound energy. It is used for guidance through the sound guide plate 6 and the grid plate 5.

[0036] The symmetrical design ensures a stable sound field in the horizontal direction, while the asymmetrical division of labor in the upper and lower directions optimizes the sound energy distribution in the far and near fields, giving the overall sound reinforcement system both penetration and detail.

[0037] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0038] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0039] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. An asymmetric acoustic horn, characterized in that: Includes a housing (1), one end of which is formed with a sound source outlet (2) with a gradually increasing diameter, and the other end is formed with a sound source inlet (3); The inner wall of the outer shell (1) forms a sound-speaking space (4), and a plurality of grid plates (5) are connected to the lower part of the sound-speaking space (4), and a sound guide plate (6) for distinguishing the upper and lower functional areas of the sound-speaking space (4) is connected to the middle part.

2. The asymmetric acoustic horn according to claim 1, characterized in that: Both the sound guide plate (6) and the grid plate (5) extend along the sound transmission direction to the sound source outlet (2).

3. The asymmetric acoustic horn according to claim 1 or 2, characterized in that: Both the sound guide plate (6) and the grid plate (5) are arranged in an arc shape.

4. The asymmetric acoustic horn according to claim 1, characterized in that: The sound source inlet (3) is fitted with a sound mounting ring (7) on the outside.

5. The asymmetric acoustic horn according to claim 3, characterized in that: The sound guide plate (6) is positioned opposite to the inner arc surface of the uppermost grid plate (5).

6. The asymmetric acoustic horn according to claim 1, characterized in that: The end of the sound source outlet (2) is rectangular.

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