Waveguide compression plane beam forming sound post

Abstract

The utility model relates to the technical field of audio frequency, in particular to a waveguide compression plane beam forming sound post, which comprises the following components: a box body, the box body is of a cylindrical structure, and a dustproof net cover is arranged at a sound outlet of the box body; the plurality of sound production units are vertically arranged in the box body in an array manner, and the sound production units adopt moving-coil loudspeakers; the phase plate is coupled with the output end of the sound production unit; the input end of the diffuser is coupled with the output end of the phase plate, and audio signals can form concentrated wave beams through cooperative use of the phase plate and the diffuser, so that directional propagation is realized. Therefore, the coverage range of the audio signals is enlarged, unnecessary audio leakage is reduced, the purity and directivity of the audio signals are ensured, the first sound outlet and the second sound outlet are divided into multiple groups through the partition plates and the spacing plates, the audio signals can form wave beams in multiple directions, and the requirements in different scenes are met.

Description

Technical Field

[0001] The utility model relates to the technical field of audio, in particular to a waveguide compression plane beamforming sound column. Background Art

[0002] With the continuous advancement of science and technology and the rapid development of society, audio technology is being applied more and more widely in various fields, especially in specific scenarios that require efficient and directional audio transmission, such as conference rooms, concert halls, and cinemas. The audio transmission effect directly affects the audience's listening experience. However, due to its inherent limitations, such as sound diffusion, high energy loss, and limited transmission distance, traditional audio transmission methods are no longer able to meet the needs of these specific scenarios.

[0003] First, sound diffusion is a major issue with traditional audio transmission methods. Audio signals often struggle to be concentrated during transmission, resulting in uneven sound distribution and difficulty ensuring clear sound quality for every listener. Second, high energy loss is also a significant drawback of traditional audio transmission methods. Audio signals are easily interfered with by various environmental factors during transmission, leading to significant energy loss and, in turn, affecting the audio signal's propagation distance and listening experience.

[0004] To address these challenges and achieve efficient, directional audio signal propagation while maintaining high fidelity, waveguide compression planar beamforming column speaker technology has emerged. Combining modern acoustic principles with sophisticated mechanical design, this technology precisely controls the propagation direction of audio signals through beamforming, achieving focused, directional audio signal transmission. This design not only ensures high energy density and low dispersion during audio signal propagation, minimizing audio signal loss and quality degradation, but also ensures that audio signals are transmitted to the target area with high fidelity, meeting the needs of specific scenarios. Utility Model Content

[0005] (1) Technical problems solved

[0006] In view of the deficiencies of the prior art, the present invention provides a waveguide compression plane beamforming sound column.

[0007] (2) Technical solution

[0008] To achieve the above objectives, the present invention provides the following technical solutions: The waveguide compression plane beamforming sound column of the present invention includes the following components:

[0009] The box body is a cylindrical structure, and a dustproof mesh cover is installed at the sound outlet of the box body;

[0010] A sound-generating unit, wherein a plurality of the sound-generating units are arranged in a vertical array in the box, and the sound-generating units are dynamic loudspeakers;

[0011] A phase plate is coupled to the output end of the sound unit and has a gap of about 1 mm to maintain the maximum travel of the speaker;

[0012] a diffuser, an input end of the diffuser being coupled to an output end of the phase plate;

[0013] The coupling portion between the phase plate and the sound unit and the bonding portion between the diffuser and the phase plate are both provided with sound insulation cotton, and the phase plate and the sound unit, as well as the diffuser and the phase plate, are all movably connected;

[0014] The phase plate is provided with a sound outlet 1, the diffuser is provided with a sound outlet 2, and the sound outlet 1 and the sound outlet 2 are divided into an upper sound outlet, a middle sound outlet and a lower sound outlet by a partition plate.

[0015] Preferably, the box body adopts any one of a cylindrical structure, a square column structure or a diamond column structure.

[0016] Further preferably, a groove is provided on a side of the output end of the sound-emitting unit, and the phase plate is connected to the groove of the sound-emitting unit via a sealing ring.

[0017] Again preferably, the upper sound outlet, the middle sound outlet and the lower sound outlet of the sound outlet 1 and the sound outlet 2 are divided into two groups by a partition plate, and the partition plate and the partition plate are both wrapped with sound insulation cotton.

[0018] Preferably, the partition plates at the upper sound outlet and the lower sound outlet of the first sound outlet are inclined structures.

[0019] Further preferably, the diameter of the input end of the second sound outlet is smaller than the diameter of the output end of the second sound outlet, and the inner wall of the second sound outlet is an arc-shaped structure.

[0020] (3) Beneficial effects

[0021] Compared with the prior art, the present invention provides a waveguide compression plane beamforming sound column, which has the following beneficial effects:

[0022] Directional propagation of audio signals: By combining the phase plate and diffuser, the audio signal can form a concentrated beam, achieving directional propagation. This not only improves the audio signal's coverage but also reduces unnecessary high-frequency interference between units, ensuring the purity and directivity of the audio signal.

[0023] Improved sound quality: The sound unit uses a speaker, combined with the beamforming technology of the phase plate, which can effectively reduce the distortion and interference of the audio signal and ensure the high fidelity of the audio signal.

[0024] Structural optimization:

[0025] The box adopts a cylindrical structure, a square column structure or a diamond column structure, which can be flexibly selected according to actual needs and application scenarios, improving the applicability and aesthetics of the sound column.

[0026] The groove and sealing ring design at the output end of the sound unit ensures the purity and sealing of the audio signal during the transmission process from the sound unit to the phase plate.

[0027] Sound outlets 1 and 2 are divided into multiple groups by dividers and spacers, allowing audio signals to form beams in multiple directions to meet the needs of different scenarios. Furthermore, the angled dividers and curved inner wall of sound outlet 2 help adjust the beam's directionality and diffusion.

[0028] Ease of use:

[0029] The phase plate and the sound unit, as well as the diffuser and the phase plate are all movably connected. This connection method not only ensures the stability between the components, but also facilitates the assembly and disassembly of the sound column, thereby improving the practicality and maintainability of the sound column.

[0030] A dustproof mesh cover is installed at the sound outlet of the box, which can effectively prevent the entry of dust and debris, protect the components inside the sound column, and extend the service life of the sound column.

[0031] In summary, the waveguide compression planar beamforming sound column has brought significant beneficial effects in audio signal propagation, sound quality improvement, structural optimization and ease of use through its unique design and structural optimization. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a schematic diagram of the box structure of the utility model;

[0033] Figure 2 This is a schematic diagram of the assembly structure of the sound unit, phase plate and diffuser of the utility model;

[0034] Figure 3 This is a schematic diagram of the split structure of the sound unit, phase plate and diffuser of the utility model;

[0035] In the figure: 1. Cabinet; 2. Sound unit; 3. Phase plate; 4. Diffuser; 5. Groove; 6. Second sound outlet; 7. Partition plate; 8. Divider; 9. Upper sound outlet; 10. Middle sound outlet; 11. Lower sound outlet; 12. Dustproof mesh cover. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0037] See also Figure 1-3 The waveguide compression plane beamforming sound column of the present invention comprises the following components:

[0038] The box body 1 is a cylindrical structure, and a dustproof mesh cover 12 is installed at the sound outlet of the box body 1;

[0039] A plurality of sound-generating units 2 are arranged in the box 1, and the sound-generating units 2 are dynamic speakers;

[0040] Phase plate 3, said phase plate 3 is coupled to the output end of the sound unit 2; a gap of about 1 mm is left to maintain the maximum travel of the speaker;

[0041] a diffuser 4 , wherein an input end of the diffuser 4 is coupled to an output end of the phase plate 3 ;

[0042] Among them, the joint between the phase plate 3 and the sound unit 2 and the coupling between the diffuser 4 and the phase plate 3 are both provided with sound insulation cotton, and the phase plate 3 and the sound unit 2, as well as the diffuser 4 and the phase plate 3 are all movably connected;

[0043] The phase plate 3 is provided with a first sound outlet, and the diffuser 4 is provided with a second sound outlet 6 . The first sound outlet and the second sound outlet 6 are divided into an upper sound outlet 9 , a middle sound outlet 10 and a lower sound outlet 11 by a partition plate 8 .

[0044] Box 1 structure selection

[0045] The box 1 of the present invention adopts any one of a cylindrical structure, a square column structure or a diamond column structure. This design allows the sound column to be flexibly selected according to the actual application scenario and installation environment, ensuring that the sound column can meet user needs in terms of appearance and practicality.

[0046] Connection between the sound unit 2 and the phase plate 3

[0047] Design of sound unit 2: Multiple sound units 2 (speakers) are arranged inside the sound column to generate audio signals.

[0048] Groove 5 and Sealing Ring: A groove 5 is provided on the side of the output end of the sound driver 2, and the input end of the phase plate 3 is adapted to connect to the groove 5 via a sealing ring. This design ensures that the audio signal does not leak during transmission from the sound driver 2 to the phase plate 3, thereby maintaining the purity and directionality of the audio signal.

[0049] Beamforming and beam steering

[0050] Function of phase plate 3: Phase plate 3 is a key component of beamforming. It adjusts the phase distribution of the audio signal to form a concentrated beam in a specific direction.

[0051] Sound Outlet Design: Phase plate 3 features sound outlets 1, divided into upper outlet 9, center outlet 10, and lower outlet 11, separated into two groups by partition plate 7. The grid structure formed by partition plates 7 and 8 allows the sound column to generate multi-directional beams, meeting the needs of different scenarios. Both partition plates 8 and 7 are wrapped with sound insulation to reduce interference and leakage during audio signal transmission.

[0052] Inclined partition plate 8: The partition plates 8 at the upper sound outlet 9 and the lower sound outlet 11 of the sound outlet 1 are inclined structures. This design helps to adjust the direction of the beam, so that the audio signal can also form a concentrated beam in the vertical direction.

[0053] Diffuser 4 design: Diffuser 4 is provided with a sound outlet 6, the diameter of the input end is smaller than the output end, and the inner wall is an arc-shaped structure. This design can further diffuse and focus the beam output by the phase plate 3, so that the audio signal can also form a concentrated beam in the horizontal direction. At the same time, the diffuser 4 also plays the role of protecting the phase plate 3 and adjusting the propagation direction of the audio signal.

[0054] Summary of the working principle of waveguide compression plane beamforming sound column

[0055] The operating principle of the waveguide compression planar beamforming sound column involves key steps such as audio signal generation, beamforming, and directional propagation. By combining specific hardware structures and components, the sound column achieves efficient directional propagation of audio signals while ensuring high fidelity during the transmission process.

[0056] First, the audio signal is generated by the sound generating unit 2 (speaker) in the box 1. There are multiple sound generating units 2 arranged in a certain layout in the box 1 to ensure the uniform distribution and efficient generation of the audio signal.

[0057] The generated audio signal is then transmitted to the phase plate 3 via the output of the sound-emitting unit 2. As a key component in beamforming, the phase plate 3 adjusts the phase distribution of the audio signal to form a concentrated beam in a specific direction. The sound outlet on the phase plate 3 is designed to have multiple sections (upper outlet 9, middle outlet 10, and lower outlet 11), which are separated by partitions 8 to achieve beamforming in different directions.

[0058] The audio signal, beamformed by phase plate 3, then enters diffuser 4. The input of diffuser 4 aligns with the output of phase plate 3, ensuring complete transmission of the audio signal. Sound outlet 2 (6) on diffuser 4 is also designed with multiple sections, corresponding to sound outlet 1 on phase plate 3, to further enhance the directional propagation of the audio signal.

[0059] To ensure the purity of the audio signal and reduce external interference during transmission, sound insulation is applied between the phase plate 3 and the sound unit 2, and between the diffuser 4 and the phase plate 3. This insulation effectively reduces audio signal leakage and distortion, improving audio signal transmission quality.

[0060] In addition, the phase plate 3 and the sound unit 2, as well as the diffuser 4 and the phase plate 3, are all movably connected. This connection method not only ensures a stable connection between the components, but also facilitates the assembly and disassembly of the sound column, improving the practicality and maintainability of the sound column.

[0061] In summary, the waveguide compression planar beamforming column speaker generates audio signals through the sound-generating unit 2, beamforms them using the phase plate 3, and achieves directional propagation of the audio signals through the diffuser 4. During this transmission process, acoustic insulation reduces audio signal leakage and distortion, and active connections ensure a secure connection between components. This operating principle enables efficient and directional audio signal propagation in specific scenarios, promising broad application prospects.

[0062] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Waveguide compression plane beamforming sound column, characterized by, Includes the following components: A box body (1), the box body (1) is a columnar structure, and a dustproof mesh cover (12) is installed at the sound outlet of the box body (1); A sound-generating unit (2), wherein a plurality of the sound-generating units (2) are arranged in a vertical array within the box (1), and the sound-generating units (2) are dynamic loudspeakers; A phase plate (3), the phase plate (3) being coupled to the output end of the sound generating unit (2); and a gap of about 1 mm is left to maintain the maximum travel of the loudspeaker; a diffuser (4), the input end of the diffuser (4) being coupled to the output end of the phase plate (3); Wherein, the contact portion between the phase plate (3) and the sound-emitting unit (2) and the coupling portion between the diffuser (4) and the phase plate (3) are both provided with sound insulation cotton, and the phase plate (3) and the sound-emitting unit (2) as well as the diffuser (4) and the phase plate (3) are all movably connected; The phase plate (3) is provided with a first sound outlet, and the diffuser (4) is provided with a second sound outlet (6). The first sound outlet and the second sound outlet (6) are divided into an upper sound outlet (9), a middle sound outlet (10), and a lower sound outlet (11) by a partition plate (8).

2. The waveguide compression plane beamforming sound column according to claim 1, characterized in that: The box body (1) adopts any one of a cylindrical structure, a square column structure or a diamond column structure.

3. The waveguide compression plane beamforming sound column according to claim 2, characterized in that: A groove (5) is provided on the side of the output end of the sound-generating unit (2), and the phase plate (3) is connected to the groove (5) of the sound-generating unit (2) via a sealing ring.

4. The waveguide compression plane beamforming sound column according to claim 3, characterized in that: The upper sound outlet (9), the middle sound outlet (10) and the lower sound outlet (11) of the sound outlet 1 and the sound outlet 2 (6) are divided into two groups by a partition plate (7), and the partition plate (8) and the partition plate (7) are both wrapped with sound insulation cotton.

5. The waveguide compression plane beamforming sound column according to claim 4, characterized in that: The partition plates (8) at the upper sound outlet (9) and the lower sound outlet (11) of the sound outlet 1 are inclined structures.

6. The waveguide compression plane beamforming sound column according to claim 5, characterized in that: The diameter of the input end of the second sound outlet (6) is smaller than the diameter of the output end of the second sound outlet (6), and the inner wall of the second sound outlet (6) is an arc-shaped structure.

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