High-directivity sound wave dispersing device and system

Abstract

The invention belongs to the technical field of safety protection equipment, and particularly discloses a high-directivity sound wave dispersing device and system. The high-directivity sound wave dispersing device is applied to a high-directivity sound wave dispersing system, the at least two horns are arranged in the box body in parallel, sound waves emitted by two or more acoustic transducers are emitted through the horns through a double-array-element or even multi-array-element structure, sound wave energy is superposed and concentrated, and high directivity is achieved; the horn, the power amplifier module and the control module are integrated in the box body, so that the device is compact in structure and small in size, and the whole device is in modular design and facilitates civil arrangement; when the power amplifier module and the control module are fixed by the pouring sealant in the power amplifier bin and the control bin, the pouring sealant can further reinforce the horn which is a core component, so that the overall strength of the horn is improved, the horn is prevented from being deformed, damaged, cracked and the like in impact and vibration stress environments, and the service life of the horn is prolonged.

Description

Technical Field

[0001] The present invention belongs to the technical field of safety protection equipment and relates to a highly directional sound wave dispersing device and system. Background Art

[0002] In the areas of security protection and regional surveillance, traditional dispersal and denial methods often rely on physical barriers, chemical stimulation, or direct force intervention, which can pose risks of injury or cause other problems. With technological advancements, non-lethal devices have gradually become important tools for maintaining public safety and order. Acoustic dispersal devices, as non-lethal devices, emit sound waves of specific frequencies and intensities to warn and dispel personnel or disperse animals (such as birds), and have become an effective security solution. Traditional acoustic dispersal devices have a wide coverage area and lack directionality, resulting in the dispersion of acoustic energy and low efficiency. Some military acoustic dispersal devices have high directivity, but are often dispersed across combat vehicles (such as armored vehicles), occupying a large assembly space and being expensive, making them unsuitable for civilian deployment.

[0003] Therefore, it is necessary to design a new type of sound wave dispersing device with high directivity, compact structure, small size and convenient for civilian deployment. Summary of the Invention

[0004] The purpose of the present invention is to provide a highly directional sound wave dispersing device and system, which has high directivity, compact structure and small size.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions:

[0006] A highly directional sound wave dispersing device, comprising:

[0007] The box body has an opening at its front end;

[0008] The mesh plate has a plurality of mesh holes and is arranged at the opening position of the box body. The box body and the mesh plate surround each other to form an assembly space;

[0009] A horn is disposed inside the assembly space, the cross-sectional area of the horn opening increases from the back to the front, at least two horns are arranged side by side, and the front edge of the horn matches the opening edge of the box;

[0010] The space of the assembly space not occupied by the horn includes at least the power amplifier compartment and the control compartment;

[0011] The acoustic transducer is installed at the bottom of each horn via the audio socket;

[0012] A power amplifier module is arranged in the power amplifier compartment;

[0013] The control module is arranged in the control compartment.

[0014] Preferably, the assembly space is a rectangular parallelepiped, and the outline of the horn is a quadrangular pyramid.

[0015] Preferably, potting glue is poured into the power amplifier compartment to fix the power amplifier module, and / or potting glue is poured into the control compartment to fix the control module.

[0016] Preferably, the side wall of the horn is provided with a plurality of reinforcing ribs.

[0017] Preferably, a drainage hole is provided at the bottom of the box.

[0018] Preferably, the rear end of the horn is mounted on the rear end surface of the box.

[0019] Preferably, an assembly portion is provided on the outer side of the bottom of the box body.

[0020] A highly directional sound wave dispersal system includes a sound wave dispersal controller and a hand microphone, and also includes the above-mentioned highly directional sound wave dispersal device, wherein the sound wave dispersal controller is electrically connected to the highly directional sound wave dispersal device and the hand microphone respectively.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] As described above, the present invention describes a highly directional sound wave dispersal device, which is applied to a highly directional sound wave dispersal system. At least two horns are arranged in parallel in a box. Through a dual-element or even multi-element structure, the sound waves emitted by two or even more acoustic transducers are transmitted through the horn. The sound wave energy is superimposed and concentrated, with high directivity, realizing long-distance directional propagation of high-intensity sound waves, achieving long-distance broadcasting, publicity, warning and dispersal effects; the horn, power amplifier module and control module are integrated in the box, so that the device structure is compact and small in size. The device as a whole is modular in design, which is convenient for civilian layout; potting glue is poured into the power amplifier compartment to fix the power amplifier module, and potting glue is poured into the control compartment to fix the control module. While fixing the power amplifier module and the control module, the potting glue can also further reinforce the core component horn, thereby improving the overall strength of the horn, ensuring that the horn will not deform, break, crack or other problems under impact and vibration stress environments, thereby extending the service life of the horn. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for describing the embodiments or the prior art.

[0024] Figure 1 A perspective view of a highly directional sound wave dispersing device according to an embodiment of the present invention;

[0025] Figure 2 This is a rear view of a highly directional sound wave dispersing device according to an embodiment of the present invention;

[0026] Figure 3 A bottom view of a highly directional sound wave dispersing device according to an embodiment of the present invention;

[0027] Figure 4 A partial cross-sectional view of a highly directional sound wave dispersing device according to an embodiment of the present invention;

[0028] Figure 5 is a three-dimensional diagram of a horn according to an embodiment of the present invention;

[0029] Figure 6 is a partial cross-sectional view of a horn according to an embodiment of the present invention;

[0030] Figure 7 This is a schematic structural diagram of a highly directional sound wave dissipation system according to an embodiment of the present invention;

[0031] Figure 8 A three-dimensional diagram of a sound wave dissipation controller according to an embodiment of the present invention;

[0032] Figure 9 2 is a three-dimensional diagram of a microphone according to an embodiment of the present invention. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0034] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of the present invention.

[0035] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0036] In addition, the terms "first," "second," and so on, used in this disclosure are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referenced. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this disclosure, "plurality" means at least two, such as two or three, unless otherwise specifically defined.

[0037] In the present invention, unless otherwise specified or limited, the terms "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can mean fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will be able to understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0038] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in this field can implement it. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0039] like Figures 1 to 9 As shown, the high-directivity sound wave dissipation device in this embodiment includes a box 1, a mesh plate 2, a horn 3, an acoustic transducer 4, a power amplifier module 5 and a control module 6.

[0040] The overall outline of the box body 1 is a rectangular parallelepiped, with an opening at the front end. The mesh panel 2 has multiple mesh holes spaced evenly in the horizontal and vertical directions. The mesh panel 2 is assembled to the edge of the opening of the box body 1 with screws 7. The box body 1 and the mesh panel 2 enclose an assembly space, which is a rectangular parallelepiped.

[0041] The box body 1 is designed and processed in an integrated manner, effectively improving the overall strength of the device. The edges of the mesh panel 2 are framed, and the middle is a mesh, which can not only reduce the obstruction and impact of the sound wave energy, but also ensure the rigidity and strength of the overall structure of the mesh panel 2.

[0042] Horn 3 is positioned within the assembly space, with its rear end attached to the rear end of enclosure 1 via screws 7. Horn 3 has a rectangular pyramidal outline, with the cross-sectional area of its opening increasing from back to front. Two horns 3 are arranged side by side, with their front edges aligned with the opening edges of enclosure 1 and the edges of screen 2.

[0043] The assembly space not occupied by the horn 3 includes at least the power amplifier compartment 11 and the control compartment 12. Specifically, the left and right side panels of the horn 3 are aligned with the left and right side panels of the cabinet 1. A space is left between the upper side panels of the horn 3 and the upper side panels of the cabinet 1 to serve as the power amplifier compartment 11, and a space is left between the lower side panels of the horn 3 and the lower side panels of the cabinet 1 to serve as the control compartment 12.

[0044] Several annular reinforcing ribs 31 are provided inside and outside the side walls of the horn 3 to prevent the horn 3 from resonating.

[0045] The sensitivity of a single acoustic transducer 4 is 126dB. At a rated power of 400W, the maximum sound pressure level (SPL) is 155.02dB. The acoustic transducer 4 is mounted to the bottom of each horn 3 via an audio jack 41. The horn 3, audio jack 41, and acoustic transducer 4 utilize an integrated, through-hole design to ensure a tight connection and excellent acoustic performance.

[0046] The power amplifier module 5 is disposed in the power amplifier compartment 11, and potting glue is poured into the power amplifier compartment 11 to fix the power amplifier module 5. The control module 6 is disposed in the control compartment 12, and potting glue is poured into the control compartment 12 to fix the control module 6.

[0047] Potting glue is poured into the power amplifier compartment 11 to fix the power amplifier module 5, and potting glue is poured into the control compartment 12 to fix the control module 6. While fixing the power amplifier module 5 and the control module 6, the potting glue can also further reinforce the core component horn 3, improve the overall strength of the horn 3, and ensure that the horn 3 will not be deformed, damaged, cracked, etc. under impact and vibration stress environments, thereby extending the service life of the horn 3.

[0048] The heat-generating components of the power amplifier module 5 and the control module 6 are attached to the side wall of the box body 1 through thermal grease, so that the heat can be dissipated through the side wall of the box body 1 in time.

[0049] A drainage hole 13 is provided at the bottom of the box body 1 , and rainwater entering the box body 1 through the mesh plate 2 is discharged through the drainage hole 13 .

[0050] An assembly portion 14 is provided on the outer side of the bottom of the box body 1. The assembly portion 14 is specifically a flange connection hole. The flange on the carrier is connected through the flange connection hole to assemble the box body 1 on the carrier.

[0051] The box body 1 is provided with an Internet port 15 and a power supply interface 16 . The Internet port 15 enables data transmission, and the power supply interface 16 enables power supply and driving of the device.

[0052] A highly directional sound wave dissipation system includes a sound wave dissipation controller 81 and a hand microphone 82, as well as the aforementioned highly directional sound wave dissipation device. The sound wave dissipation controller 81 is electrically connected to the highly directional sound wave dissipation device and the hand microphone 82. The sound wave dissipation controller 81 uses a high-performance microcontroller (MCU) as the system's main controller and stores user audio files via a mounted TF memory card. When USB mode is selected via a switch, the MCU can use the system to virtualize the TF memory card as a USB flash drive and mount it on a computer. The audio ADC communicates with the main control MCU via the IIS and IIC interfaces. The user can operate the hand microphone 82 or select translation mode via the switch. The analog audio signal is collected and digitized by the audio ADC and sent to the main control MCU, which then transmits the data to the sound wave dissipation host via Gigabit Ethernet. The sound wave dissipation controller 81 also has a CAN interface for transmitting commands and status data to a host computer. The hand microphone 82 uses a digital microphone with digital noise reduction and howling suppression functions. It enables human interaction and translation, and can translate Chinese into multiple languages for output.

[0053] So far, the present embodiment has been described in detail with reference to the accompanying drawings. Based on the above description, those skilled in the art should have a clear understanding of the highly directional sound wave dispersing device of the present invention. The high-directivity sound wave dispersal device of the present invention is applied to a high-directivity sound wave dispersal system. At least two horns 3 are arranged in parallel in a box 1. Through a dual-element or even multi-element structure, the sound waves emitted by two or even more acoustic transducers 4 are emitted through the horn 3. The sound wave energy is superimposed and concentrated, with high directivity, realizing long-distance directional propagation of high-intensity sound waves, achieving long-distance broadcasting, publicity, warning and dispersal effects; the horn 3, power amplifier module 5 and control module 6 are integrated in the box 1, so that the device structure is compact and small in size. The device as a whole is modular in design, which is convenient for civilian layout; potting glue is poured into the power amplifier compartment 11 to fix the power amplifier module 5, and potting glue is poured into the control compartment 12 to fix the control module 6. While fixing the power amplifier module 5 and the control module 6, the potting glue can also further reinforce the core component horn 3, improve the overall strength of the horn 3, ensure that the horn 3 will not be deformed, damaged, cracked and other problems under impact and vibration stress environments, and extend the service life of the horn 3.

[0054] Of course, the above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformation made by using the contents of the present invention description and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields, is included in the patent protection scope of the present invention and should be protected by the present invention.

Claims

1. A highly directional sound wave dispersing device, characterized in that: include: The box body has an opening at its front end; The mesh plate has a plurality of mesh holes and is arranged at the opening position of the box body. The box body and the mesh plate surround each other to form an assembly space; A horn is disposed inside the assembly space, the cross-sectional area of the horn opening increases from the back to the front, at least two horns are arranged side by side, and the front edge of the horn matches the opening edge of the box; The space of the assembly space not occupied by the horn includes at least the power amplifier compartment and the control compartment; The acoustic transducer is installed at the bottom of each horn via the audio socket; A power amplifier module is arranged in the power amplifier compartment; The control module is arranged in the control compartment.

2. The highly directional sound wave dispersing device according to claim 1, characterized in that: The assembly space is a rectangular parallelepiped, and the outline of the horn is a quadrangular pyramid.

3. The highly directional sound wave dispersing device according to claim 1, characterized in that: The power amplifier compartment is filled with potting glue to fix the power amplifier module, and / or the control compartment is filled with potting glue to fix the control module.

4. The highly directional sound wave dispersing device according to claim 1, characterized in that: The side wall of the horn is provided with a plurality of reinforcing ribs.

5. The highly directional sound wave dispersing device according to claim 1, characterized in that: A drainage hole is provided at the bottom of the box body.

6. The highly directional sound wave dispersing device according to claim 1, characterized in that: The rear end of the horn is assembled on the rear end surface of the box.

7. The highly directional sound wave dispersing device according to claim 1, characterized in that: An assembly portion is provided on the outer side of the bottom of the box body.

8. A highly directional sound wave dispersal system, characterized by: The highly directional sound wave dispersal system includes a sound wave dispersal controller and a hand microphone, and also includes the highly directional sound wave dispersal device according to any one of claims 1 to 7, wherein the sound wave dispersal controller is electrically connected to the highly directional sound wave dispersal device and the hand microphone, respectively.

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