A noise reduction device

Abstract

The present invention provides a noise reduction device, including a sound absorbing panel, and airbags arranged in an evenly distributed array on the sound absorbing panel, wherein a bracket is arranged inside the airbag; a deflation component connected to the airbag for inflating and deflation of the airbag; a controller electrically connected to the inflation and deflation component for controlling the inflation and deflation component; a sound sensor electrically connected to the controller for collecting sound intensity signal information of the surrounding environment; and a photosensitive sensor electrically connected to the controller for collecting light intensity signal information of the surrounding environment. The noise reduction device of the present invention can control the noise reduction degree of the sound absorbing panel according to the sound volume and light intensity of the surrounding environment, thereby achieving that the device can meet the use requirements in different environments and under different needs, with intelligent noise reduction, easy use, and a wide range of applications. In addition, the overall structure of the device is simple, and it is easy to produce and install.

Description

Technical Field

[0001] The present invention relates to the technical field of noise processing, and in particular to a noise reduction device. Background Art

[0002] With the vigorous development of the social industrialization process and the rapid advancement of urbanization, noise pollution has become more and more serious, causing direct or indirect impacts on people's health. In the existing technology, some technical products for removing noise have been produced, such as soundproof walls, which have blocked the spread of noise to a certain extent. However, in different environments, the requirements for the strength of noise or other sounds are different. For example, absolute silence is required in conference rooms, and noise is needed in some public places to cover up personal conversations. Moreover, there are different requirements for the strength of sound at different times in the same place. For example, during the day, the sound needs to be stronger to achieve living in a normal environment, and at night, it needs to be as quiet as possible to improve the quality of sleep or rest. Therefore, the noise processing devices or technologies on the market can no longer solve the above-mentioned needs of people, and cannot intelligently process noise as the environment and time change. Summary of the invention

[0003] The problem solved by the present invention is how to provide a noise reduction device which can perform intelligent noise reduction according to different environments and requirements and has good noise reduction effect.

[0004] To solve the above problems, the present invention provides a noise reduction device, comprising a sound absorbing board, and

[0005] Air bags are evenly arranged in an array on the sound absorbing board, and brackets are arranged inside the air bags;

[0006] An inflation and deflation assembly, connected to the airbag, for inflating and deflation of the airbag;

[0007] A controller, electrically connected to the inflation and deflation assembly, for controlling the inflation and deflation assembly;

[0008] A sound sensor, electrically connected to the controller, for collecting sound strength signal information of the surrounding environment;

[0009] The photosensitive sensor is electrically connected to the controller and is used to collect light intensity signal information of the surrounding environment.

[0010] Optionally, the sound-absorbing panel is a sound-absorbing cotton having a concave-convex structure on the surface, and the airbag is arranged in a concave position on the sound-absorbing cotton.

[0011] Optionally, the inflation and deflation assembly includes an air pump box and an air tube, wherein an air pump is provided in the air pump box, and the air pump is connected to the airbag via the air tube.

[0012] Optionally, the air pump has an air outlet and an air inlet, and two air pumps are arranged in the air pump box, wherein the air outlet of one of the air pumps is connected to the air bag through the air pipe, and the air inlet of the other air pump is connected to the air bag through the air pipe.

[0013] Optionally, an adapter is provided between the air pump and the airbag, and the air pump is connected to a plurality of the airbags via the adapter.

[0014] Optionally, a MOS tube switch circuit is further provided in the air pump box, an input end of the MOS tube switch circuit is electrically connected to the controller, and an output end of the MOS tube switch circuit is electrically connected to the air pump.

[0015] Optionally, a mounting plate is further included, and the sound absorbing panel is fixed on the mounting plate.

[0016] Optionally, a mounting frame is further included, wherein the mounting frame is connected to the mounting plate, and the mounting plate is mounted on the wall through the mounting frame.

[0017] Optionally, the support is made of sulfate paper.

[0018] Optionally, through holes are provided on the mounting plate and the sound absorbing plate, and the air pipe passes through the through holes to be connected to the airbag.

[0019] Compared with the prior art, the present invention has at least the following advantages:

[0020] The noise reduction device provided by the present invention collects the sound intensity signal information of the surrounding environment through the sound sensor, and collects the light intensity signal information of the surrounding environment through the photosensitive sensor, and transmits them to the controller. The controller controls the inflation and deflation assembly through the signal information, and then controls the inflation and deflation of the airbag. The deformation of the airbag after inflation and deflation can cover the sound-absorbing board to different degrees, so that the fixed sound-absorbing board has a variable sound-absorbing effect. The noise reduction device of the present invention can control the noise reduction degree of the sound-absorbing board according to the sound volume and light intensity of the surrounding environment, so that the device can meet the use requirements in different environments and under different needs, with intelligent noise reduction, easy use, and a wide range of applications. In addition, the overall structure of the device is simple and easy to produce and install. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of the structure of a noise reduction device according to an embodiment of the present invention;

[0022] Figure 2 It is a schematic diagram of the structure of the airbag according to an embodiment of the present invention;

[0023] Figure 3 It is a structural schematic diagram of a sound-absorbing panel according to an embodiment of the present invention;

[0024] Figure 4 This is a schematic diagram of the connection structure between the inflation and deflation assembly and the airbag according to an embodiment of the present invention;

[0025] Figure 5 for Figure 4 A structural diagram of another connection form;

[0026] Figure 6 It is a structural schematic diagram of the mounting frame according to an embodiment of the present invention;

[0027] Figure 7 It is a schematic diagram of a partial cross-sectional structure of a noise reduction device according to an embodiment of the present invention;

[0028] Figure 8 for Figure 7 A schematic diagram of another structural form of .

[0029] Description of reference numerals:

[0030] 1-sound absorbing board, 11-depression;

[0031] 2-airbag, 21-stent;

[0032] 3-inflating and deflation assembly, 31-air pump box, 32-air pipe, 33-air pump, 34-adapter;

[0033] 4-Mounting plate;

[0034] 5-mounting frame, 51-mounting hole. DETAILED DESCRIPTION

[0035] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0036] It should be noted that in the description of the present disclosure, the directions or positional relationships indicated by “upper”, “lower”, “top”, “bottom”, “front”, “back”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present disclosure. They do not indicate or imply that the device referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present disclosure.

[0037] Furthermore, although the invention is described in this disclosure with reference to specific embodiments, it should be understood that these embodiments are merely examples of the principles and applications of the invention. It should therefore be understood that many modifications may be made to the exemplary embodiments and that other arrangements may be devised without departing from the spirit and scope of the invention as defined by the appended claims. It should be understood that the various dependent claims and features described herein may be combined in a manner other than that described in the original claims. It should also be understood that features described in conjunction with individual embodiments may be used in other described embodiments.

[0038] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0039] See also Figures 1 to 4 , which is a schematic diagram of the structure of the noise reduction device according to an embodiment of the present invention, a schematic diagram of the structure of the airbag, a schematic diagram of the structure of the sound absorbing panel, and a schematic diagram of the connection structure between the inflation and deflation assembly and the airbag;

[0040] like Figures 1 to 4As shown, the noise reduction device provided by the embodiment of the present invention comprises a sound absorbing board 1, and airbags 2 arranged in an evenly distributed array on the sound absorbing board 1, wherein a bracket 21 is provided in the airbags 2; an inflation and deflation component 3 connected to the airbags 2 for inflating and deflation of the airbags 2; a controller electrically connected to the inflation and deflation component 3 for controlling the inflation and deflation component 3; a sound sensor electrically connected to the controller for collecting the sound intensity signal information of the surrounding environment; and a photosensitive sensor electrically connected to the controller for collecting the light intensity signal information of the surrounding environment. The noise reduction device provided by the embodiment of the present invention collects the sound intensity signal information of the surrounding environment through the sound sensor, and the photosensitive sensor collects the light intensity signal information of the surrounding environment, and both are transmitted to the controller. The controller controls the inflation and deflation component 3 through the signal information, and then controls the inflation and deflation of the airbags 2. The deformation of the airbags 2 after inflation and deflation can cover the sound absorbing board 1 to different degrees, so that the fixed sound absorbing board 1 has a variable sound absorption effect. At the same time, by setting a bracket 21 in the airbag 2, the deformation form of the airbag 2 can be effectively controlled. Since the shape of the airbag 2 itself will change irregularly during the contraction process, it will affect the size and degree of its coverage of the sound-absorbing panel 1, and thus affect the sound-absorbing effect of the device. By controlling the shape change of the airbag 2 through the bracket 21, the shape change of the airbag 2 can be regular during the process of expansion after inflation and contraction after deflation, thereby making the sound-absorbing effect of the sound-absorbing panel 1 controllable. The noise reduction device of the embodiment of the present invention can control the noise reduction degree of the sound-absorbing panel 1 according to the sound volume and light intensity of the surrounding environment, thereby achieving that the device can meet the use requirements in different environments and under different needs, intelligent noise reduction, easy to use, and wide application range, and the device can be installed on the surface of the building wall, and according to the size of the wall area, the wall can be fully covered by assembling the device, the overall structure is simple, and it is easy to produce and install.

[0041] Alternatively, if Figures 1 to 3 As shown, the sound-absorbing board 1 provided in the embodiment of the present invention is a sound-absorbing cotton with a concave-convex structure on the surface, and the airbag 2 is arranged in a concave portion 11 on the sound-absorbing cotton. Figure 7 and Figure 8 For explanation, in the present embodiment, the airbag 2 has an overall pyramidal structure, and the above-mentioned airbag 2 is arranged in the recessed part 11 of the sound-absorbing cotton. After the airbag 2 is deflated and shrunk, the exposed area of ​​the sound-absorbing cotton is the largest, and the sound-absorbing effect is the strongest. On the contrary, after the airbag 2 is inflated, the arrangement of the uniform array can make the multiple airbags 2 completely cover the sound-absorbing cotton. At this time, the sound-absorbing effect of the sound-absorbing cotton is the weakest. With such a design, the sound-absorbing effect of the sound-absorbing cotton can be controlled more accurately. At the same time, the sound-absorbing cotton is a market-standard sound-absorbing material, which is easy to purchase and produce, and has a good noise reduction effect, thereby improving the overall performance.

[0042] Alternatively, if Figure 1 and Figure 4 As shown, the inflation and deflation assembly 3 provided in the embodiment of the present invention includes an air pump box 31 and an air pipe 32. An air pump 33 is provided in the air pump box 31, and the air pump 33 is connected to the airbag 21 through the air pipe 32. By placing the air pump 33 in the air pump box 31, the overall structure is modularized, which is convenient for assembly and installation, and makes the overall structure simpler and neater.

[0043] Alternatively, if Figure 1 , Figure 4 and Figure 5 As shown, the air pump 33 provided in the embodiment of the present invention has an air outlet and an air inlet, and two air pumps 33 are arranged in the air pump box 31, wherein the air outlet of one of the air pumps 33 is connected to the airbag 2 through the air pipe 32, and the air inlet of the other air pump 33 is connected to the airbag 2 through the air pipe 32. In this way, one air pump 33 is set to be responsible for inflating the airbag 2, and the other air pump 33 is set to be responsible for deflating the airbag 2, with clear division of labor, improving the overall operation accuracy, and thus improving the overall performance of the device.

[0044] Alternatively, if Figure 4 and Figure 5 As shown, an adapter 34 is provided between the air pump 33 and the airbag 2 provided in the embodiment of the present invention, and the air pump 33 is connected to a plurality of the airbags 2 through the adapter 34. By setting the adapter 34, the purpose of one air pump 33 to inflate and deflate a plurality of airbags 2 can be achieved, thereby improving the overall working efficiency. Of course, it should be noted here that, as Figure 4 and Figure 5 As shown, the structure and shape of the adapter 34 can also be other, and can connect a larger number of airbags 2. Changes to the connection method of the air pump 33 and the airbag 2 through the adapter 34 and changes to the structure of the adapter 34 are all ideas protected by the present invention.

[0045] Alternatively, if Figure 1 As shown, the air pump box 31 provided in the embodiment of the present invention is further provided with a MOS switch circuit, the input end of the MOS switch circuit is electrically connected to the controller, and the output end of the MOS switch circuit is electrically connected to the air pump 33. By controlling the air pump 33 through the MOS switch circuit, the working state of the air pump 33 can be controlled to start and stop at any time, and the operation is stable and reliable, ensuring the overall safety and reliability.

[0046] Alternatively, if Figure 1 , Figure 7 and Figure 8As shown, the noise reduction device provided in the embodiment of the present invention further includes a mounting plate 4, and the sound absorbing panel 1 is fixed on the mounting plate 4. Preferably, the sound absorbing panel 1 is adhered to the surface of the mounting plate 4. With such a design, the assembly is convenient and quick, and the structure is stable and firm.

[0047] Alternatively, if Figure 1 , Figures 6 to 8 As shown, the noise reduction device provided by the embodiment of the present invention also includes a mounting frame 5, the mounting frame 5 is connected to the mounting plate 4, the mounting plate 4 is installed on the wall through the mounting frame 5, and mounting holes 51 are respectively provided at both ends of the mounting frame 5. The mounting frame 5 can be connected to the back of the mounting plate 4 by screws, and then the device is fixed to the wall where the device is to be installed by screws. The installation is convenient and quick, and the overall structure is modular, and multiple groups can be assembled, which improves the installation efficiency. In addition, through holes are provided on the mounting plate 4 and the sound absorbing board 1, and the air pipe 32 passes through the through holes to connect with the airbag 2. Such a design further improves the stability of the overall structure, and makes the overall structure neat in appearance, de-componented, and easy to produce and process.

[0048] Alternatively, if Figure 2 , Figure 7 and Figure 8 As shown, the bracket 21 is made of cellulose paper, and hard cellulose paper is used. The cellulose paper has the characteristics of pure paper, high strength, good transparency, no deformation, sun resistance, high temperature resistance, and aging resistance. It is suitable for being arranged in the airbag 2 as a support to maintain the regular changes of the airbag 2 during the expansion and contraction process. Preferably, the surface of the airbag 2 shown is made of TPU material, which has the advantages of good heat resistance, high strength, high transparency, etc. compared with other materials, and is suitable for use in this device. The selection of the above-mentioned bracket 21 and the surface material of the airbag 2 is light in weight and can be deformed repeatedly, thereby improving the overall service life.

[0049] Specifically, combined Figures 1 to 8, the working principle of the noise reduction device provided by the embodiment of the present invention is further explained: in this embodiment, the controller adopts an Arduino main control board, which can burn programs and perform calculations and judgments. When in use, the device is first initialized, and the controller controls the air pump 33 to deflate the airbag 2 through the MOS tube switch circuit to evacuate the gas in the airbag 2. Due to the structural characteristics of the airbag 2 itself and the bracket 21 as an internal support, the surface of the airbag 2 is tightly attached to the bracket 21, and the cross-section is in a cross-shaped structure. At this time, the exposed area of ​​the sound-absorbing board 1 is the largest and the sound-absorbing effect is the strongest; at the same time, the light sensor detects the brightness of the light in the surrounding environment. The controller program pre-sets a threshold A for judging the light intensity. When the ambient light intensity exceeds the set threshold A , it is judged as daytime, that is, the user is not in a resting state and does not need to be completely silent, the controller controls the air pump 33 to inflate the airbag 2, and the airbag 2 covers the sound-absorbing board 1 after expansion, which weakens the sound absorption effect of the sound-absorbing board 1. When the ambient light intensity is lower than the set threshold A, it is judged as night, that is, the user is in a resting state, and the controller controls the air pump 33 to deflate the airbag 2 to enhance the sound absorption effect of the sound-absorbing board 1; at the same time, through the use of the sound sensor, the sound intensity judgment threshold B is preset in the controller. When the sound sensor detects that the sound intensity of the surrounding environment exceeds the threshold B, the airbag 2 is deflated to enhance the sound absorption effect of the sound-absorbing board 1. Otherwise, the air pump 33 is controlled to inflate the airbag 2 to reduce the sound absorption effect of the sound-absorbing board 1. Through the structural design and the connection and use of each component in the above embodiment, the user's life comfort can be greatly improved and people's needs for noise treatment can be met.

[0050] Although the disclosure is disclosed as above, the protection scope of the disclosure is not limited thereto. Those skilled in the art may make various changes and modifications without departing from the spirit and scope of the disclosure, and these changes and modifications will fall within the protection scope of the present invention.

Claims

1. A noise reduction device, characterized in that: comprising a sound absorbing panel (1), and Air bags (2) are evenly distributed in an array and arranged on the sound absorbing panel (1), and a bracket (21) is provided in the air bags (2); An inflation and deflation assembly (3) connected to the airbag (2) and used to inflate and deflate the airbag (2); A controller, electrically connected to the inflation and deflation assembly (3), and used to control the inflation and deflation assembly (3); A sound sensor, electrically connected to the controller, for collecting sound strength signal information of the surrounding environment; A photosensor, electrically connected to the controller, for collecting light intensity signal information of the surrounding environment; Wherein, the controller is used to control the inflation and deflation assembly through the sound intensity signal information and the light intensity signal information, so as to form air bags with different deformations to cover the sound absorbing board to different degrees, so that the sound absorbing board has a variable sound absorption effect.

2. The noise reduction device according to claim 1, characterized in that: The sound-absorbing board (1) is a sound-absorbing cotton having a concave-convex structure on its surface, and the airbag (2) is arranged at a concave portion (11) on the sound-absorbing cotton.

3. The noise reduction device according to claim 1, characterized in that: The inflation and deflation assembly (3) comprises an air pump box (31) and an air pipe (32); an air pump (33) is arranged in the air pump box (31); and the air pump (33) is connected to the air bag (2) via the air pipe (32).

4. The noise reduction device according to claim 3, characterized in that: The air pump (33) has an air outlet and an air inlet. Two air pumps (33) are arranged in the air pump box (31), wherein the air outlet of one of the air pumps (33) is connected to the air bag (2) via the air pipe (32), and the air inlet of the other air pump (33) is connected to the air bag (2) via the air pipe (32).

5. The noise reduction device according to claim 3, characterized in that: An adapter (34) is provided between the air pump (33) and the airbag (2), and the air pump (33) is connected to a plurality of the airbags (2) via the adapter (34).

6. The noise reduction device according to claim 3, characterized in that: A MOS tube switch circuit is also provided in the air pump box (31), the input end of the MOS tube switch circuit is electrically connected to the controller, and the output end of the MOS tube switch circuit is electrically connected to the air pump (33).

7. The noise reduction device according to claim 3, characterized in that: It also comprises a mounting plate (4), and the sound absorbing plate (1) is fixed on the mounting plate (4).

8. The noise reduction device according to claim 7, characterized in that: It also comprises a mounting frame (5), wherein the mounting frame (5) is connected to the mounting plate (4), and the mounting plate (4) is mounted on the wall via the mounting frame (5).

9. The noise reduction device according to claim 1, characterized in that: The support (21) is made of sulfuric acid paper.

10. The noise reduction device according to claim 7, characterized in that: The mounting plate (4) and the sound absorbing plate (1) are both provided with through holes, and the air pipe (32) passes through the through holes to be connected to the air bag (2).

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