Horn diffusion structure

Abstract

The utility model relates to a horn diffusion structure in the technical field of acoustic equipment. The structure comprises a shell provided with two channels, one end of the shell is a sound source outlet, the other end of the shell is a sound source inlet with the diameter gradually reduced, the sound source outlet is provided with a plurality of diffusion parts with built-in alto phase plugs, an inner container is arranged in the two channels, a compression cavity is defined by the inner container and the inner side wall, and an outlet is formed. During working, a sound source forms a secondary sound source through the sound source inlet and the compression cavity, and then the secondary sound source is diffused to a far field through the diffusion part. Each diffusion part comprises a diffusion mounting cavity, diffusion grooves are formed in the top and the bottom of each diffusion part, and four diffusion parts are symmetrically arranged at the sound source outlet. The shell is covered by a left shell body and a right shell body and provided with reinforcing ribs. The horn diffusion structure can effectively improve sound transmission and diffusion effects, realizes efficient directional transmission and far-field radiation, and is convenient to install and maintain and high in structural stability.

Description

TECHNICAL FIELD

[0001] The utility model relates to acoustics equipment technical field, especially a horn diffusion structure. BACKGROUND

[0002] In the field of professional sound, stage sound and high-end home theater, horn diffusion structure as a key component has a decisive influence on the propagation and diffusion effect of sound. With the continuous improvement of people's requirements for audio experience, higher standards are put forward for the directional propagation accuracy, diffusion uniformity and far-field radiation clarity of sound.

[0003] However, the existing horn diffusion structure has many limitations. In the sound application of large-scale performance venues or open spaces, part of the horn diffusion structure is difficult to effectively concentrate and propagate the sound source energy at a long distance, so that the rear row audience cannot clearly feel the sound details, affecting the overall auditory experience. At the same time, in the process of sound diffusion, the existing structure easily changes the phase and frequency characteristics of sound, produces sound distortion, especially in high and low frequency bands, resulting in a decrease in sound quality and an inability to restore the true texture of audio.

[0004] Therefore, it is of great practical significance to develop a horn diffusion structure that can significantly improve the sound propagation and diffusion effect, and improve the performance and audio quality of acoustics equipment. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a horn diffusion structure to solve the problems of horn diffusion structure in the prior art in terms of sound propagation and diffusion effect, and realize more efficient directional propagation and far-field radiation of sound.

[0006] The utility model is implemented by the following technical solutions:

[0007] A horn diffusion structure, comprising a shell, wherein: the shell is provided with a double channel; one end of the double channel is provided with a sound source outlet extending outward; the other end of the double channel is provided with a sound source inlet with a gradually decreasing diameter; a plurality of diffusion parts are arranged on the sound source outlet; the diffusion part is internally provided with a midrange phase plug; an inner container is arranged in the double channel; a compression cavity is formed by the inner side wall of the double channel and the inner container; the compression cavity is provided with a compression cavity outlet; the sound source reaches the compression cavity outlet from the sound source inlet through the compression cavity to form a secondary sound source, and then radiates to the far field after diffusion of the diffusion part.

[0008] Further, as an improvement of the utility model technical scheme, the diffusion part comprises a diffusion mounting cavity; the midrange phase plug is internally arranged in the diffusion mounting cavity.

[0009] As a further improvement to the technical solution of this utility model, multiple diffusion grooves are arranged at both the top and bottom of the diffusion mounting cavity.

[0010] As a further improvement to the technical solution of this utility model, four diffusers are symmetrically arranged on the sound source outlet.

[0011] As a further improvement to the technical solution of this utility model, the outer shell is composed of a left shell and a right shell; the left shell and the right shell are closed to form a cavity for accommodating the inner liner.

[0012] As a further improvement to the technical solution of this utility model, the outer shell is provided with shell reinforcing ribs.

[0013] This utility model has the following beneficial effects:

[0014] This invention, by setting up dual channels and a compression chamber, can compress and focus the sound source, making the sound energy more concentrated, enhancing the directional propagation ability of the sound, and facilitating the sound to propagate to the far field.

[0015] The diffuser of this invention incorporates a mid-range phase plug, which optimizes the phase characteristics of the sound and improves sound quality. Multiple diffusers, along with diffusion grooves at the top and bottom of the diffuser mounting cavity, ensure more uniform sound diffusion, further enhancing the sound diffusion effect.

[0016] The outer shell of this utility model adopts a left and right shell covering method, which facilitates the installation and maintenance of the inner liner. At the same time, the shell reinforcing ribs on the outer shell enhance the structural stability and extend the service life of the product. Attached Figure Description

[0017] Figure 1 This is one of the three-dimensional structural schematic diagrams of a horn diffusion structure according to an embodiment of the present utility model;

[0018] Figure 2 This is a second three-dimensional structural schematic diagram of a horn diffusion structure according to an embodiment of the present utility model;

[0019] Figure 3 This is a side view of a horn diffuser structure according to an embodiment of the present invention;

[0020] Figure 4 This is a cross-sectional schematic diagram of a horn diffuser structure according to an embodiment of the present invention;

[0021] Figure 5 This is a longitudinal cross-sectional schematic diagram of a horn diffuser structure according to an embodiment of the present invention;

[0022] Figure 6 This is a top view schematic diagram of a horn diffusion structure according to an embodiment of the present invention.

[0023] In the drawings: 1 - shell; 2 - double channel; 3 - diffusion part; 4 - midrange phase plug; 5 - inner container; 6 - compression chamber; 11 - left shell; 12 - right shell; 13 - shell reinforcing rib; 21 - sound source outlet; 22 - sound source inlet; 31 - diffusion mounting cavity; 32 - diffusion groove; 61 - compression chamber outlet. DETAILED DESCRIPTION

[0024] The utility model will be combined with the drawings and specific embodiments to be explained in detail, here with the utility model of the illustrative embodiment and the explanation is used to explain the utility model, but not as the limitation of the utility model.

[0025] It should be noted that all directional indications (such as up, down, left, right, front, back, upper end, lower end, top, bottom, etc.) in the embodiments of the utility model are only used to explain the relative positional relationship, movement condition, etc. between components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directional indications will also change accordingly.

[0026] In the utility model, unless otherwise explicitly specified and limited, the term "connection" should be understood broadly, for example, "connection" can be fixed connection, can also be detachable connection, or integral; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship of two elements, unless otherwise explicitly limited. For ordinary skilled in the art, the specific meaning of the above-mentioned term in the utility model can be understood according to the specific circumstances.

[0027] In addition, in the utility model, the description such as "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features; in addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, also not within the protection scope required by the utility model.

[0028] For example, Figures 1 to 6As shown, a kind of horn diffusion structure, including shell 1;Wherein: the shell 1 is provided with double channel 2;The one end of the double channel 2 is provided with the sound source outlet 21 extending outward;The other end of the double channel 2 is provided with the sound source inlet 22 of gradually reducing diameter;Multiple diffusion parts 3 are provided on the sound source outlet 21;The diffusion part 3 is built-in medium tone phase plug 4;The double channel 2 is provided with inner container 5;The inner side wall of the double channel 2 and the sound channel formed by the inner container 5 form compression cavity 6;The compression cavity 6 is provided with compression cavity outlet 61;Sound source reaches the compression cavity outlet 61 from the sound source inlet 22 through the compression cavity 6 to form secondary sound source and then radiate to far field after the diffusion of the diffusion part 3.It needs to be explained that the utility model has the function of enhancing sound directional propagation and far field radiation: compared with the traditional horn diffusion structure, the utility model initiatively sets double channel 2 and compression cavity structure.The design breaks the convention, can efficiently compress and accurately focus sound source, so that sound energy is highly concentrated, like " directional engine " for sound, greatly enhances the directional propagation ability of sound.This innovation enables sound to maintain high energy intensity during long-distance transmission, effectively solves the problem that the existing structure cannot effectively propagate sound source energy to far field, and ensures that sound is still clear and audible in large space or long-distance scene.

[0029] Specifically, in the embodiment, the diffusion part 3 includes a diffusion mounting cavity 31, and the medium tone phase plug 4 is built in the diffusion mounting cavity 31.It needs to be explained that the built-in medium tone phase plug 4 in the diffusion part 3 is another highlight of the utility model.It is like a " phase regulator " for sound, can accurately optimize the phase characteristics of sound, fundamentally avoids the problem of sound quality damage caused by phase disorder in the diffusion process, and significantly improves the sound quality.

[0030] Specifically, in the embodiment, the top and bottom of the diffusion mounting cavity 31 are arranged with a plurality of diffusion grooves 32.

[0031] Specifically, in the embodiment, the sound source outlet 21 is symmetrically provided with four diffusion parts 3.It needs to be explained that at the same time, the plurality of diffusion parts 3 and the plurality of diffusion grooves 32 carefully designed on the top and bottom of the diffusion mounting cavity 31 cooperate with each other to build a full-range, multi-level sound diffusion system, so that sound is uniformly diffused in all directions, and the condition of uneven sound diffusion of the traditional structure is completely changed, to bring more balanced and natural auditory enjoyment to users.

[0032] Specifically, in the embodiment, the shell 1 is composed of a left shell 11 and a right shell 12;The left shell 11 and the right shell 12 are covered to form a cavity accommodating the inner container 5.

[0033] Specifically, in the embodiment, the shell 1 is provided with a shell reinforcing rib 13. It should be noted that the utility model is convenient to install, maintain and stable in structure: the shell 1 adopts the unique design of left shell body 11 and right shell body 12 cover, and the modular assembly mode is as convenient as building blocks, which greatly facilitates the installation and subsequent maintenance work of the inner container 5, and reduces the maintenance cost and difficulty. The shell reinforcing rib 13 arranged on the shell 1 is like injecting "steel and iron bones" to the structure, which significantly enhances the stability of the overall structure, effectively prolongs the service life of the product, and has more advantages in durability compared with the traditional structure.

[0034] Actual application scenario:

[0035] Overall structure assembly

[0036] Shell material selection and preparation: the left shell body 11 and the right shell body 12 are usually made of engineering plastics or metal materials with certain strength and sound insulation performance, such as high-strength ABS plastic or aluminum alloy. Before assembly, ensure that the surfaces of the two shell bodies are clean and free of impurities to ensure good sealing and connection strength.

[0037] Inner container 5 installation: carefully place the carefully designed inner container 5 in the predetermined position, and the shape and size of the inner container 5 are accurately matched with the cavity formed by the left and right shell bodies 12 cover. To ensure the stability of the inner container 5, rubber pads or shock-absorbing materials can be added to the contact part of the inner container 5 and the shell to reduce noise caused by vibration.

[0038] Shell connection: when using screw connection, pre-drill screw holes at the corresponding positions of the left and right shell bodies 12, select appropriate size screws, and use a screwdriver or power tool to tighten the screws to ensure firm connection. If a buckle connection method is used, the elasticity and strength of the buckle need to be ensured, and the left and right shell bodies 12 are aligned with the buckle position and gently pressed to make the buckle tightly engage. After completion, check the sealing and stability of the entire shell 1.

[0039] Reinforcing rib function: the shell reinforcing rib 13 on the shell 1 not only enhances the structural strength, but also plays a role in auxiliary heat dissipation to a certain extent. The design of the reinforcing rib is optimized according to the stress distribution and acoustic performance requirements of the shell 1 to ensure reliable support for the entire structure without affecting sound propagation.

[0040] Sound propagation path

[0041] Sound source inlet 22 convergence: the sound source enters from the sound source inlet 22 with gradually decreasing diameter, and the shape design is similar to a funnel, which can guide the sound to gradually converge, like water flowing through a narrow pipe, so that the sound energy is preliminarily concentrated. The inner wall of the sound source inlet 22 is usually made of smooth material, such as polished metal or special coated plastic, to reduce sound reflection and energy loss.

[0042] Compression cavity 6 reinforcement: After entering the compression cavity 6, the sound channel formed by the inner wall of the double channel 2 and the inner container 5 further compresses the sound. The length, width and shape of the compression cavity 6 are precisely calculated and optimized to achieve the best sound compression effect. During the compression process, the pressure and density of the sound increase, and the energy is more concentrated, laying the foundation for subsequent far-field propagation.

[0043] Secondary sound source formation: When the sound reaches the compression cavity outlet 61, due to the compression effect, a secondary sound source with higher energy density is formed. At this time, the secondary sound source is more concentrated and orderly in the propagation direction and energy distribution, preparing for efficient sound diffusion.

[0044] Sound diffusion process

[0045] Phase adjustment: When the secondary sound source reaches the diffusion part 3 of the sound source outlet 21, the middle phase plug 4 built into the diffusion installation cavity 31 begins to play a role. The middle phase plug 4 is generally made of materials with excellent acoustic performance, such as special acoustic ceramics or high polymer composite materials. It can finely adjust the phase of the sound and correct the phase deviation that may occur during the propagation of the sound, ensuring that the various frequency components of the sound can be accurately superimposed, thereby improving the sound quality.

[0046] Uniform diffusion: The multiple diffusion grooves 32 at the top and bottom of the diffusion installation cavity 31, and the four diffusion parts 3 symmetrically distributed at the sound source outlet 21, together form a comprehensive sound diffusion system. The shape, depth and spacing of the diffusion grooves 32 are carefully designed to guide the sound to reflect and refract in different directions, allowing the sound to diffuse uniformly in both horizontal and vertical directions. Multiple diffusion parts 3 work together to further refine the diffusion path of the sound, allowing the sound to be radiated to the far field in a more uniform and soft manner, providing a more wide and natural listening experience for the audience.

[0047] In summary, the utility model effectively improves the sound propagation and diffusion effect of the horn diffusion structure through unique structural design and careful optimization of the implementation mode, and has high practical value.

[0048] The above describes the technical solutions provided by the embodiments of the utility model in detail. This paper applies specific examples to describe the principles and implementation modes of the embodiments of the utility model. The above description of the embodiments is only applicable to help understand the principles of the embodiments of the utility model; at the same time, for those skilled in the art, according to the embodiments of the utility model, the specific implementation mode and application range will be changed, and the above description should not be understood as a limitation of the utility model.

Claims

1. A horn diffuser structure comprising an enclosure; characterized by: The shell is provided with a double channel; one end of the double channel is provided with an outwardly extending sound source outlet; the other end of the double channel is provided with a sound source inlet with gradually reduced diameter; the sound source outlet is provided with a plurality of diffusion parts; the diffusion parts are internally provided with a midrange phase plug; the double channel is internally provided with an inner container; the inner side wall of the double channel and the inner container form a compression cavity; the compression cavity is provided with a compression cavity outlet; the sound source from the sound source inlet to the compression cavity outlet forms a secondary sound source and is radiated to the far field after diffusion of the diffusion part.

2. A horn diffuser structure according to claim 1, wherein: The diffusion part includes a diffusion mounting cavity; the midrange phase plug is internally provided in the diffusion mounting cavity.

3. A horn diffuser structure according to claim 2, wherein: The top and bottom of the diffusion mounting cavity are both arranged with a plurality of diffusion grooves.

4. The horn diffuser structure of claim 1, wherein: The sound source outlet is symmetrically provided with four diffusion parts.

5. The horn diffuser structure of claim 1, wherein: The shell is composed of a left shell and a right shell; the left shell and the right shell are combined to form a cavity accommodating the inner container.

6. The horn diffuser structure of claim 1, wherein: The shell is provided with a shell reinforcing rib.

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