A cellular optical platform with feedback microphone matrix

Abstract

The application relates to the technical field of optical platforms, and particularly discloses a honeycomb type optical platform with a feedback microphone matrix, which comprises a top plate, a bottom plate, a side plate, a honeycomb plate and sound-absorbing filling material.

Description

Technical Field

[0001] This application relates to the field of optical platform technology, and in particular to a cellular optical platform with a feedback microphone matrix. Background Technology

[0002] Optical platforms are commonly used experimental platforms in high-precision experiments in optical engineering. The upper panel has an array of threaded holes for mounting optical instruments. To make the optical platform more stable, a "sandwich" structure is generally adopted, which is formed by bonding upper and lower thin steel plates and an internal honeycomb core. Studies have shown that using a honeycomb core layer in the middle has a high stiffness-to-mass ratio and good overall structural stability.

[0003] When an optical platform is used to support industrial equipment, there will be some noise in the environment where the optical platform is located. The noise will cause the optical platform to vibrate, which can easily have an adverse effect on the industrial equipment placed on the optical platform. Summary of the Invention

[0004] In order to reduce the impact of noise-induced vibrations on equipment placed on a school platform, this application provides a cellular optical platform with a feedback microphone matrix.

[0005] The cellular optical platform with a feedback microphone matrix provided in this application adopts the following technical solution: A cellular optical platform with a feedback microphone matrix includes: roof; A base plate, spaced apart below the base plate; Side plates are fixedly connected between the top plate and the bottom plate; A honeycomb panel is disposed inside the side panel; Sound-absorbing filling material is used to fill the grid-like cavities within the honeycomb panel.

[0006] By adopting the above technical solution, the top plate, bottom plate, side plate and honeycomb plate are all made of metal, which together form a closed structure. The honeycomb structure is filled with sound-absorbing material. The sound-absorbing material and the outer closed structure together form the structure of phononic crystal. The phononic crystal has a band gap effect and has a high-frequency vibration absorption effect for acoustic-structure coupling vibration. That is, it can reduce the impact of high-frequency noise vibration on the optical platform, thereby ensuring the normal operation of the equipment placed on the optical platform.

[0007] Optionally, the sound-absorbing filling material includes a first filling material and a second filling material, the first filling material and the second filling material having different porosities, and the first filling material and the second filling material are alternately filled in the grid-like cavities within the honeycomb panel.

[0008] By adopting the above technical solution, the two materials have different porosities, thus absorbing a wider range of audio frequencies, which helps to enhance the sound absorption effect. In addition, since the sound-absorbing filling material fills the cavity inside the honeycomb panel, the possibility of dust entering the cavity inside the honeycomb panel can be reduced, thereby reducing the possibility of the honeycomb panel being corroded.

[0009] Optionally, the top plate has a connection hole, and a vibration damping mechanism is provided on the bottom wall of the top plate at the connection hole. The vibration damping mechanism includes a microphone, a diaphragm, a circuit board, and a power supply component. The microphone is disposed on the bottom wall of the top plate, the diaphragm is disposed on the bottom wall of the microphone, and the circuit board and the power supply component are both disposed on the bottom wall of the diaphragm. The circuit board is electrically connected to the power supply component, the diaphragm, and the microphone, respectively, so that the microphone converts the detected sound signal into an electrical signal and transmits it to the circuit board, causing the diaphragm to generate a counterforce to counteract the vibration of the top plate.

[0010] By adopting the above technical solution, the microphone can detect the sound near the connection hole and convert the sound into an electrical signal. The electrical signal is transmitted to the circuit board. After the circuit board picks up the vibration electrical signal, it causes the diaphragm to work. The diaphragm generates a counterforce to counteract the vibration of the top plate, thus reducing the impact of low-frequency noise on the optical platform.

[0011] Optionally, the power supply element includes a battery, and a solar monocrystalline silicon wafer is disposed on one side of the top plate, the solar monocrystalline silicon wafer being electrically connected to the battery.

[0012] By adopting the above technical solutions, solar monocrystalline silicon wafers can charge batteries, thus making them more energy-efficient.

[0013] Optionally, a first channel is provided on the top plate between two adjacent connecting holes, the first channel being connected to the connecting holes, and a second channel is provided at the end of the top plate being connected to the outermost connecting hole.

[0014] By adopting the above technical solution, multiple connection holes are interconnected and all are connected to the outside of the top plate. Therefore, when the corresponding equipment is placed on the top plate of the optical platform, the top opening of the connection hole below the equipment is blocked. At this time, external noise can be transmitted to the blocked connection hole through the first channel and the second channel, thereby ensuring the normal detection of the microphone in the blocked connection hole and thus better reducing vibration of the optical platform.

[0015] Optionally, a connecting tube is rotatably disposed in the connecting hole about its own axis, and an elastic element is connected between the connecting tube and the inner wall of the connecting hole. The elastic element ensures that the connecting tube is normally perpendicular to the first channel. A driving assembly is disposed on the top plate. The driving assembly is used to drive the connecting tube to rotate to a state parallel to the first channel, so that the first channels at both ends of the connecting hole are interconnected through the connecting tube.

[0016] By adopting the above technical solution, under normal conditions, the connecting tube and the first channel are perpendicular, and the multiple connecting holes are interconnected, allowing sound to propagate smoothly. When it is necessary to clean the dust in the first channel, the connecting tube can be rotated by the drive component, so that the connecting tube and the first channel are on the same straight line, and the first channels at both ends of the connecting hole can be interconnected through the connecting tube. At this time, simply blowing air in through the second channel can blow out the dust in the first channel, thereby cleaning the first channel. The setting of the connecting tube can guide the gas, thereby preventing the gas from escaping from the connecting hole, which helps to ensure the cleaning effect of the first channel.

[0017] Optionally, the driving component includes an electromagnet and a magnetic component. The electromagnet is disposed on the bottom wall of the circuit board, and the magnetic component is fixedly connected to the connecting pipe, so that the magnetic component rotates under the action of the magnetic field generated by the electromagnet, thereby driving the connecting pipe to rotate.

[0018] By adopting the above technical solution, the electromagnet can generate a magnetic field when energized. Under the action of the magnetic field, the magnetic component can rotate in a specific direction, thereby driving the connecting tube to rotate.

[0019] Optionally, the bottom wall of the connecting tube is provided with bristles, and the side of the bristles away from the connecting tube abuts against the microphone.

[0020] By adopting the above technical solution, the rotating connecting tube can also drive the brush bristles to rotate. When the brush bristles rotate, they can clean the top wall of the microphone, thereby brushing off the dust adhering to the top surface of the microphone, which helps to ensure the microphone's detection effect.

[0021] Optionally, one end of the top plate is provided with an inlet pipe, the number of inlet pipes is the same as that of the second channel, each inlet pipe corresponds to a second channel, and the end of the inlet pipe away from the second channel is fixedly connected to a conduit, the conduit and the inlet pipe are connected, the conduit and the inlet pipe are both slidably arranged along the length direction of the second channel, and the conduit is provided with an air inlet that communicates with the interior.

[0022] By adopting the above technical solution, when the optical platform is in operation, the conduit and the inlet tube are located on the side away from the top plate, so that the inlet tube and the second channel are spaced apart. This allows external sound to enter, thereby ensuring the detection effect of the microphone. When the optical platform needs to be cleaned, the conduit and the inlet tube are located on the side closer to the top plate, so that the inlet tube and the second channel are connected. At this time, air can be blown into the conduit through the air inlet to clean the inside of the first channel.

[0023] Optionally, an exhaust hole is provided on the side wall of the connecting pipe.

[0024] By adopting the above technical solution, when air is injected into the first channel for cleaning, the gas can also be discharged outward through the exhaust hole when it flows into the connecting tube, thereby cleaning the dust on the inner wall of the connecting hole and the top wall of the microphone.

[0025] In summary, this application includes at least one of the following beneficial technical effects: 1. The top plate, side plates, bottom plate, honeycomb plate, and internal sound-absorbing filling material can together form a phononic crystal, thereby absorbing high-frequency noise and reducing the impact of vibrations caused by high-frequency noise on the optical platform.

[0026] 2. The microphone can detect low-frequency noise, then convert the sound signal into an electrical signal and transmit the electrical signal to the circuit board. The circuit board then drives the diaphragm to work, thereby generating a counterforce to counteract the vibration of the top plate caused by low-frequency noise, which can reduce the impact of the vibration caused by low-frequency noise on the optical platform.

[0027] 3. The connecting pipe can guide the incoming gas, thus preventing most of the gas from being directly discharged from the connecting hole, which helps to ensure the cleaning effect of the first channel.

[0028] 4. When the position of the connecting tube is changed, the connecting tube rotates, which in turn drives the brush bristles to rotate, thereby cleaning the top wall of the microphone and helping to ensure the microphone's detection effect. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of this application; Figure 2 This is a top view of Embodiment 1 of this application; Figure 3 This is a cross-sectional view along the AA direction in Embodiment 1 of this application; Figure 4 This is a cross-sectional view of the connecting hole in Embodiment 1 of this application; Figure 5 This is a schematic diagram of the overall structure of Embodiment 2 of this application; Figure 6This is a cross-sectional view of the connection hole in Embodiment 2 of this application; Figure 7 yes Figure 6 Enlarged view of point A in the middle; Figure 8 This is a top sectional view of Embodiment 2 of this application, used to show the installation position of the connecting pipe; Figure 9 This is a cross-sectional view of Embodiment 2 of this application, used to show the position of the connecting pipe under normal conditions.

[0030] Reference numerals: 1. Top plate; 11. Connecting hole; 111. Threaded section; 112. Smooth section; 12. First channel; 13. Second channel; 2. Base plate; 21. Support leg; 3. Side plate; 4. Honeycomb panel; 5. Sound-absorbing filling material; 51. First filling material; 52. Second filling material; 6. Insulating pad; 7. Charging connection cable; 8. Vibration damping mechanism; 81. Microphone; 82. Diaphragm; 83. Circuit board; 84. Battery; 9. Solar monocrystalline silicon wafer; 10. Connecting pipe; 101. Exhaust hole; 102. Brush bristles; 14. Elastic element; 15. Drive assembly; 151. Electromagnet; 152. Magnetic element; 16. Inlet pipe; 161. Slider; 17. Conduit; 171. Air inlet; 18. Support rod; 19. Slide rail; 191. Slide groove. Detailed Implementation

[0031] The following is in conjunction with the appendix Figure 1-9 This application will be described in further detail.

[0032] Example 1 This application discloses a cellular optical platform with a feedback microphone matrix. (Refer to...) Figure 1 , Figure 2 and Figure 3 The honeycomb optical platform with a feedback microphone matrix includes a top plate 1, a bottom plate 2, side plates 3, and a honeycomb panel 4. Multiple connection holes 11 are arrayed on the top plate 1, each with internal threads, facilitating the fixing of equipment to the top surface of the top plate 1. Both the top plate 1 and the bottom plate 2 are horizontally positioned, with the bottom plate 2 spaced below the top plate 1. Support legs 21 are vertically fixed to the bottom wall of the bottom plate 2, their bottom ends resting on the ground for support. The side plates 3 are fixedly connected between the bottom wall of the top plate 1 and the top wall of the bottom plate 2, together forming a closed space. The honeycomb panel 4 is fixedly connected within the closed space of the side plates 3, and its height is vertical. The mesh-like cavities in the honeycomb panel 4 are filled with sound-absorbing material 5, which absorbs high-frequency noise, thereby reducing the impact of high-frequency noise on the optical platform.

[0033] Reference Figure 3The sound-absorbing filling material 5 includes a first filling material 51 and a second filling material 52, which are alternately arranged in the grid-like cavities within the honeycomb panel 4. The first filling material 51 is a polyurethane filler, and the second filling material 52 is a rock wool filler. The different materials of the first filling material 51 and the second filling material 52 result in different porosities, enabling them to absorb noise of different frequencies and thus enhancing the sound absorption effect.

[0034] Reference Figure 4 A vibration damping mechanism 8 is provided on the bottom wall of the top plate 1 below each connection hole 11. The vibration damping mechanism 8 includes a microphone 81, a diaphragm 82, a circuit board 83, and a power supply component. The microphone 81 is fixedly connected to the bottom wall of the top plate 1, and the microphone 81 is located directly below the connection hole 11, with the detection end of the microphone 81 facing upwards. The diaphragm 82 is fixedly connected to the bottom wall of the microphone 81, and the diaphragm 82 can convert electrical signals into sound, thereby generating vibration. The power supply component is a battery 84, which is fixedly connected to the circuit board 83, and both the battery 84 and the circuit board 83 are fixedly connected to the bottom wall of the diaphragm 82. The circuit board 83 is electrically connected to the battery 84, the diaphragm 82, and the microphone 81 respectively. Therefore, when low-frequency noise from the outside causes the top plate 1 to vibrate, the microphone 81 can detect the low-frequency noise signal, then convert the sound into an electrical signal and transmit the electrical signal to the circuit board 83. The circuit board 83 drives the diaphragm 82 to vibrate, so that the diaphragm 82 generates a reaction force on the top plate 1, thereby canceling the vibration caused by the low-frequency noise on the top plate 1.

[0035] An insulating pad 6 is provided between the diaphragm 82 and the battery 84. The insulating pad 6 can separate the two, thereby avoiding short circuits and helping to ensure the normal operation of each part.

[0036] Reference Figure 2 Furthermore, a solar monocrystalline silicon wafer 9 is fixedly connected to one side of the top plate 1, and the solar monocrystalline silicon wafer 9 is electrically connected to the battery 84 through the charging connection line 7. Therefore, the solar monocrystalline silicon wafer 9 can convert solar energy into electrical energy of the battery 84 for storage.

[0037] In other embodiments, the solar monocrystalline silicon wafer 9 may be omitted, and the power supply element may be set as a connecting line, so that the circuit board 83 and the diaphragm 82 can be electrically connected to an external power source through the connecting line, thereby supplying power to the circuit board 83 and the diaphragm 82.

[0038] The implementation principle of Example 1 is as follows: The top plate 1, bottom plate 2, side plate 3 and honeycomb plate 4 are all made of metal and together form a closed structure. The interior is filled with a first filling material 51 and a second filling material 52 that can absorb sound. Therefore, the sound-absorbing filling material 5 and the outer plate together constitute a phononic crystal. The phononic crystal has a band gap and has a high-frequency vibration absorption effect for acoustic-structure coupling vibration. This part is passive vibration reduction.

[0039] In addition, microphone 81 can detect low-frequency noise around top plate 1 (low frequency refers to 20-100 Hz), convert the sound into an electrical signal, and transmit the electrical signal to circuit board 83. Circuit board 83 causes diaphragm 82 to vibrate, and diaphragm 82 provides a reaction force to top plate 1, thereby canceling the vibration of top plate 1 caused by low-frequency noise. This part is active vibration damping. The combination of passive and active vibration damping can reduce the impact of environmental noise on top plate 1, thereby ensuring the normal operation of equipment placed on top plate 1.

[0040] Example 2 Reference Figure 5 The difference between this embodiment and Embodiment 1 is that, in this embodiment, a first channel 12 is provided inside the top plate 1 between two adjacent connecting holes 11. The first channel 12 is a strip-shaped hole opened inside the top plate 1. The first channel 12 is arranged along the length direction of the top plate 1, and the first channel 12 is connected to the bottom end of the connecting hole 11. A second channel 13 is provided at both ends along the length direction of the top plate 1. The second channel 13 is a strip-shaped hole opened inside the top plate 1, and one end of the second channel 13 is connected to the outer side of the top plate 1. The second channel 13 is parallel to the first channel 12, and the second channel 13 is connected to the outermost connecting hole 11.

[0041] Reference Figure 6 and Figure 7 The connecting hole 11 includes a threaded section 111 at the top and a smooth section 112 at the bottom. The first channel 12 and the second channel 13 are both connected to the interior of the connecting hole 11 through the inner wall of the smooth section 112. Therefore, the arrangement of the first channel 12 and the second channel 13 does not affect the normal operation of the threaded section 111. Because the arrangement of the first channel 12 and the second channel 13 allows multiple connecting holes 11 to be interconnected and connected to the outer side of the top plate 1, external noise can enter the connecting holes 11 in the top plate 1 through the first channel 12 and the second channel 13. This allows the microphone 81 in the corresponding connecting hole 11 to detect the sound, thereby driving the diaphragm 82 to vibrate accordingly to eliminate the impact of noise.

[0042] Reference Figure 7 and Figure 8 To facilitate cleaning of dust in the first channel 12 and the second channel 13, a connecting pipe 10 is provided in each connecting hole 11. A horizontally arranged support rod 18 is fixedly connected to the inner wall of the connecting hole 11; the axis of the connecting pipe 10 is horizontal, and the connecting pipe 10 is rotatably mounted on the support rod 18 around the axis of the connecting hole 11. An elastic element 14, which is a torsion spring, is fixedly connected between the connecting pipe 10 and the support rod 18. Under normal conditions, the elastic element 14 is in an untwisted state, and at this time, the axis of the connecting pipe 10 is perpendicular to the length direction of the first channel 12.

[0043] A drive assembly 15 for rotating the connecting tube 10 is also provided in the connecting hole 11. The drive assembly 15 includes an electromagnet 151 and a magnetic component 152. The electromagnet 151 is fixedly connected to the bottom wall of the circuit board 83 and is connected to an external power supply, which powers the electromagnet 151. The magnetic component 152 is fixedly connected to the outer wall of the connecting tube 10 along its length. Therefore, when it is necessary to clean the dust inside the first channel 12 and the second channel 13, the equipment placed on the top plate 1 can be removed first, so that the top plate 1 is idle; then, the electromagnet 151 is powered by the external power supply, and the electromagnet 151 generates a magnetic field. The magnetic field causes the magnetic component 152 to rotate 90°, and the magnetic component 152 drives the connecting tube 10 to rotate, so that the connecting tube 10 is in a state parallel to the first channel 12. The first channels 12 at both ends of the connecting hole 11 are connected by the connecting pipe 10. Therefore, when air is vented inward through the second channel 13 at one end of the top plate 1, more airflow can flow along the first channel 12 and then flow out from the second channel 13 at the other end of the top plate 1, thereby quickly blowing out the dust in the first channel 12 and the second channel 13. The setting of the connecting pipe 10 can prevent most of the airflow from flowing out through the connecting hole 11, thereby ensuring the cleaning effect.

[0044] Reference Figure 7 and Figure 9 Furthermore, bristles 102 are fixedly connected to the bottom wall of the connecting tube 10. The bristles 102 are arranged along the length of the connecting tube 10, are flexible, and their bottom ends abut against the top wall of the microphone 81. Therefore, when the electromagnet 151 is energized, the connecting tube 10 can clean the microphone 81 through the bristles 102 as it rotates.

[0045] After ventilation is stopped for a period of time, the power supply to electromagnet 151 is also stopped. Without the magnetic field, the elastic element 14 causes the connecting tube 10 to rotate in the opposite direction and return it to its initial state. Then, a reverse current is supplied to electromagnet 151, causing the magnetic field it generates to reverse direction. This allows the connecting tube 10 to rotate in the opposite direction until it is parallel to the first channel 12. Therefore, intermittently supplying the electromagnet 151 with the opposite current allows the connecting tube 10 to rotate in both directions, ensuring that the brush bristles 102 completely cover the top wall of microphone 81 when it rotates, thus enhancing the cleaning effect on microphone 81.

[0046] Reference Figure 8The connecting pipe 10 has multiple exhaust holes 101 on its side wall, so that a portion of the gas flowing inside the first channel 12 can be discharged outward through the exhaust holes 101. This not only ensures the cleaning effect on the first channel 12 and the second channel 13, but also makes it easier to clean the connecting hole 11.

[0047] Reference Figure 5 To facilitate the ventilation process into the second channel 13, an inlet pipe 16 is provided at one end of the top plate 1. Multiple inlet pipes 16 are provided, the number of which is the same as the number of second channels 13 at one end of the top plate 1, with each inlet pipe 16 corresponding to one second channel 13. A conduit 17 is fixedly connected to the end of the inlet pipe 16 away from the top plate 1. The conduit 17 is arranged along the width direction of the top plate 1 and is connected to the inlet pipe 16. Both ends of the conduit 17 are closed, and an air inlet 171 for connecting to an air source is provided in the middle of the conduit 17. Slider blocks 161 are fixedly connected to the outer walls of the two outermost inlet pipes 16. A slide rail 19 is fixedly connected to the end of the top plate 1 along its length direction. A groove 191 is formed in the slide rail 19, and the slider 161 is slidably disposed in the groove 191, thus allowing the inlet pipe 16 and the conduit 17 to slide along the length direction of the top plate 1.

[0048] When the optical platform is in operation, the inlet pipe 16 is separated from the second channel 13. At this time, external noise can enter the interior of the top plate 1 through the second channel 13, facilitating detection by the microphone 81. When the optical platform is in cleaning mode, the inlet pipe 16 can be slid to engage with the second channel 13. At this time, the air source is connected to the air inlet 171 on the duct 17. The air blown out by the air source enters the duct 17 through the air inlet 171, then through the inlet pipe 16 into the corresponding second channel 13, and finally into the first channel 12 corresponding to the second channel 13, thus cleaning the internal dust. Therefore, the arrangement of the duct 17 and the inlet pipe 16 allows for rapid cleaning of the dust inside the top plate 1 using only one air source, making it more convenient.

[0049] The implementation principle of Example 2 is as follows: When it is necessary to clean the dust inside the first channel 12 and the second channel 13, the equipment placed on the top surface of the top plate 1 is first removed, so that the top surface of the top plate 1 is in an idle state. Then, the inlet pipe 16 is slid so that the inlet pipe 16 and the second channel 13 are abutted; then the air source and the air inlet 171 are connected, and air is blown into the second channel 13 through the conduit 17 and the inlet pipe 16, and then the airflow enters the corresponding first channel 12 through the second channel 13.

[0050] Next, a positive current is supplied to the electromagnet 151 through an external power supply, causing the magnetic component 152 to rotate 90° counterclockwise. The magnetic component 152 drives the connecting tube 10 to rotate, making the connecting tube 10 parallel to the first channel 12. At this time, the connecting tube 10 and the first channel 12 are on the same straight line, so the airflow entering from the second channel 13 can flow more along the first channel 12, and finally flow out through the second channel 13 on the other side of the top plate 1. When the airflow flows, it can blow out the dust inside the first channel 12 and the second channel 13, thereby cleaning the dust and avoiding the accumulation of dust that would cause the sound transmission to be unsmooth and affect the detection of the microphone 81.

[0051] Next, power is stopped to electromagnet 151. Without the magnetic field, elastic element 14 causes connecting tube 10 to rotate and return to its initial state, i.e., connecting tube 10 is perpendicular to the first channel 12. Then, a reverse current is supplied to electromagnet 151, causing magnetic element 152 to rotate 90° clockwise. Magnetic element 152 drives connecting tube 10 to rotate, bringing connecting tube 10 back to a state parallel to the first channel 12.

[0052] By intermittently providing forward and reverse current to the electromagnet 151, the connecting tube 10 can be rotated in both directions. During the rotation of the connecting tube 10, the brush 102 can be rotated, thereby cleaning the top wall of the microphone 81 and brushing off the dust accumulated on the microphone 81, which helps to ensure the detection effect of the microphone 81.

[0053] After cleaning, slide the inlet tube 16 away from the top plate 1, separating the inlet tube 16 from the second channel 13. Then, without the magnetic field, the connecting tube 10 is perpendicular to the first channel 12, which helps ensure smooth sound transmission and guarantees the detection performance of the microphone 81.

[0054] The above are optional embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made to the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A cellular optical platform with a feedback microphone matrix, characterized in that, include: Top plate (1); The bottom plate (2) is spaced below the top plate (1); Side plate (3) is fixedly connected between the top plate (1) and the bottom plate (2); A honeycomb panel (4) is disposed inside the side panel (3); Sound-absorbing filling material (5) is filled into the grid-like cavity inside the honeycomb panel (4); The top plate (1) is provided with a connection hole (11). A vibration damping mechanism (8) is provided on the bottom wall of the top plate (1) at the connection hole (11). The vibration damping mechanism (8) includes a microphone (81), a diaphragm (82), a circuit board (83) and a power supply component. The microphone (81) is provided on the bottom wall of the top plate (1). The diaphragm (82) is provided on the bottom wall of the microphone (81). The circuit board (83) and the power supply component are both provided on the bottom wall of the diaphragm (82). The circuit board (83) is electrically connected to the power supply component, the diaphragm (82) and the microphone (81) respectively, so that the microphone (81) converts the detected sound signal into an electrical signal and transmits it to the circuit board (83), so that the diaphragm (82) generates a reverse force to counteract the vibration of the top plate (1). A first channel (12) is provided on the top plate (1) between two adjacent connecting holes (11), the first channel (12) is connected to the connecting hole (11), and a second channel (13) is provided at the end of the top plate (1) to be connected to the outermost connecting hole (11). A connecting pipe (10) is rotatably disposed in the connecting hole (11) around its own axis. An elastic element (14) is connected between the connecting pipe (10) and the inner wall of the connecting hole (11). The elastic element (14) makes the connecting pipe (10) normally perpendicular to the first channel (12). A driving assembly (15) is disposed on the top plate (1). The driving assembly (15) is used to drive the connecting pipe (10) to rotate to a state parallel to the first channel (12) so that the first channels (12) at both ends of the connecting hole (11) are interconnected through the connecting pipe (10).

2. The cellular optical platform with a feedback microphone matrix according to claim 1, characterized in that: The sound-absorbing filling material (5) includes a first filling material (51) and a second filling material (52). The first filling material (51) and the second filling material (52) have different porosities. The first filling material (51) and the second filling material (52) are alternately filled in the grid-like cavity in the honeycomb plate (4).

3. A cellular optical platform with a feedback microphone matrix according to claim 1, characterized in that: The power supply element includes a battery (84), and a solar monocrystalline silicon wafer (9) is provided on one side of the top plate (1), and the solar monocrystalline silicon wafer (9) is electrically connected to the battery (84).

4. A cellular optical platform with a feedback microphone matrix according to claim 1, characterized in that: The driving assembly (15) includes an electromagnet (151) and a magnetic component (152). The electromagnet (151) is disposed on the bottom wall of the circuit board (83), and the magnetic component (152) is fixedly connected to the connecting pipe (10) so that the magnetic component (152) rotates under the action of the magnetic field generated by the electromagnet (151), thereby driving the connecting pipe (10) to rotate.

5. A cellular optical platform with a feedback microphone matrix according to claim 1, characterized in that: The bottom wall of the connecting tube (10) is provided with bristles (102), and the side of the bristles (102) away from the connecting tube (10) abuts against the microphone (81).

6. A cellular optical platform with a feedback microphone matrix according to claim 1, characterized in that: An inlet pipe (16) is provided at one end of the top plate (1). The number of inlet pipes (16) is the same as that of the second channel (13). Each inlet pipe (16) corresponds to a second channel (13). A conduit (17) is fixedly connected to the end of the inlet pipe (16) away from the second channel (13). The conduit (17) and the inlet pipe (16) are connected. The conduit (17) and the inlet pipe (16) are both slidably arranged along the length direction of the second channel (13). An air inlet (171) connected to the interior is provided on the conduit (17).

7. A cellular optical platform with a feedback microphone matrix according to claim 1, characterized in that: The connecting pipe (10) has an exhaust hole (101) on its side wall.

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