Electro-optical purification and disinfection device based on glass sponge body

Abstract

The invention relates to an electro-optical purification and disinfection device based on a glass sponge body, and the device comprises a housing which is provided with an air inlet and an air outlet; the glass sponge body is provided with an air light hole; the air light hole extends in the direction from the air inlet to the air outlet, so that air circulates in the air light hole in the direction from the air inlet to the air outlet. The laser assembly is arranged on the inner side or the outer side of the shell; and the laser assembly emits a laser beam to the glass sponge body, so that the laser beam is refracted, reflected, scattered and / or transmitted through the inner wall of the gas light hole, and a three-dimensional laser field is formed in the glass sponge body. According to the air purification and disinfection device, a three-dimensional light field cavity filled with high energy can be formed in the glass sponge body, the disinfection angle is reduced, air can be comprehensively and fully irradiated by laser in the circulation process in the air light holes, and the thoroughness and reliability of air purification and disinfection are greatly improved.

Description

Technical Field

[0001] This application relates to the field of laser air disinfection technology, and in particular to an electro-optical purification and disinfection device based on glass sponge. Background Technology

[0002] Currently, traditional laser air disinfection technology typically involves arranging a series of reflective mirrors or surfaces in the airflow channel, causing the laser beam to undergo multiple reflections. This creates one or more "laser beam nets" in physical space, formed by the reciprocating scanning of the laser beams. Contaminated air passes through this light net under the drive of a fan, and the microorganisms within it are irradiated with ultraviolet light as they pass through, achieving photo-sterilization and improving the comprehensiveness of air treatment.

[0003] However, the "laser beam net" constructed in traditional technology has unavoidable physical gaps between its laser beams, and no matter how complex the reflection path is designed, its space filling rate is extremely low. As a result, the "laser beam net" constructed in traditional technology has beam gaps and irradiation dark areas. When air carrying microorganisms passes through the beam gaps and irradiation dark areas, it is not irradiated with an effective dose, resulting in the existence of elimination disinfecting angles and insufficient elimination reliability and thoroughness.

[0004] Therefore, there is a need for an electro-optical purification and disinfection device based on glass sponge that can improve the reliability and thoroughness of air disinfection. Summary of the Invention

[0005] Therefore, it is necessary to provide an electro-optical purification and disinfection device based on glass sponge, the specific technical solution of which is as follows.

[0006] An electro-optical purification and disinfection device based on glass sponge, comprising: The casing is equipped with an air inlet and an air outlet; The glass sponge has multiple air holes; the air holes extend from the air inlet to the air outlet, allowing air to flow from the air inlet to the air outlet within the air holes. A laser component is located inside or outside the housing; the laser component emits a laser beam toward the glass sponge, causing the laser beam to be refracted, reflected, scattered and / or transmitted through the inner wall of the air hole, thereby forming a three-dimensional laser field inside the glass sponge.

[0007] Furthermore, the air aperture includes at least a first inner wall and a second inner wall, such that the laser beam is refracted from the first inner wall to the second inner wall or reflected from the first inner wall to the second inner wall; the first inner wall and the second inner wall are not parallel.

[0008] Furthermore, the multiple air holes form an interconnected three-dimensional porous structure inside the glass sponge; the three-dimensional porous structure forms at least one of a random disordered network structure, a spiral structure, a Z-shaped structure, or a tree-like branching structure on a plane perpendicular to the airflow direction.

[0009] Furthermore, multiple air holes are arranged in a regular pattern inside the glass sponge to form an array of microporous structures; the arrangement rule of the array of microporous structures is: forming at least one of a hexagonal honeycomb array, a square grid array, a ring array, or a triangular array on a plane perpendicular to the airflow direction.

[0010] Furthermore, the arrayed microporous structure includes multiple arrayed microporous layers stacked along a direction perpendicular to the airflow direction; adjacent arrayed microporous layers have different rotation angles or different arrangement rules.

[0011] Furthermore, at least two layers of glass sponge are provided inside the housing along the airflow direction, and the air pore distribution patterns of adjacent glass sponge are different.

[0012] Furthermore, the aperture of the air aperture changes continuously along the direction of airflow.

[0013] Furthermore, the glass sponge is made of a solid material that has light transmittance and light scattering properties for the working wavelength of the laser beam.

[0014] Furthermore, the glass sponge is 3D printed from quartz glass, sapphire crystal, or transparent ceramic.

[0015] Furthermore, it also includes an electrostatic generator electrically connected to the glass sponge, the electrostatic generator being used to charge the inner wall surface of the glass sponge with static electricity.

[0016] Furthermore, the inner wall of the air-glow hole is provided with a through hole, so that adjacent air-glow holes can communicate with each other.

[0017] Furthermore, the laser assembly includes a laser emitter and a laser coupling component; the laser coupling component is located between the laser emitter and the glass sponge, so that the laser beam emitted by the laser emitter is coupled to the glass sponge through the laser coupling component; the laser coupling component includes at least one of an optical lens, an optical galvanometer, a reflector, a collimating lens, a beam expander, or an optical fiber.

[0018] Furthermore, the inner wall surface of the gas-light hole is provided with a photocatalytic material layer, which includes at least one of a titanium dioxide layer, a zinc oxide layer, and a tungsten oxide layer.

[0019] Furthermore, the inner wall surface of the air hole is provided with a hydrophobic coating.

[0020] Furthermore, the laser component emits a laser wavelength of 200nm-300nm.

[0021] Furthermore, the glass sponge is integrally formed using 3D printing technology.

[0022] A laser air disinfection device, integrating an electro-optical purification and disinfection device based on glass sponge as described in any of the above claims.

[0023] Beneficial effects: The electro-optical purification and disinfection device based on glass sponge provided by the present invention has multiple air-optic holes set in the glass sponge. The laser beam undergoes a large amount of refraction, reflection and scattering through the inner wall of the air-optic holes, forming a cavity filled with a high-energy "three-dimensional light field" inside the glass sponge. This reduces the disinfection disinfect angle, and the air can be fully and completely irradiated by the laser during the air-optic hole circulation process, which greatly improves the thoroughness and reliability of air purification and disinfection. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 A schematic diagram of a glass sponge; Figure 2 A schematic diagram of the overall structure of the electro-optical purification and disinfection device; Figure 3 This is a schematic diagram of the air aperture; Figure 4 A schematic diagram of the random mesh-like three-dimensional microporous structure formed by the air-optic pores of a glass sponge; Figure 5 A schematic diagram of the spiral three-dimensional microporous structure formed by the air-optic pores of a glass sponge; Figure 6 A schematic diagram of the Z-shaped multi-microporous structure formed by the air-optic pores of a glass sponge; Figure 7 A schematic diagram of the dendritic branched microporous structure formed by the air pores of a glass sponge; Figure 8 This is a schematic diagram of the structure after the multi-layered glass sponge is assembled. Figure 9 This is a schematic diagram of the laser transmission optical path structure.

[0026] Explanation of reference numerals in the attached figures: 10. Housing; 20. Glass sponge; 21. First glass sponge; 22. Second glass sponge; 23. Third glass sponge; 30. Laser assembly; 40. Electrostatic generator; 101. Air inlet; 102. Air outlet; 201. Air hole; 2011, First inner wall; 2012, Second inner wall; 31. Laser coupling unit; 32. Laser emitter; 311. Collimating lens; 312. Beam expander. Detailed Implementation

[0027] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0028] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0030] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0031] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0032] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0033] Example Reference Figure 1 and Figure 2 As shown, this embodiment provides an electro-optical purification and disinfection device based on a glass sponge, including a housing 10, a glass sponge 20, and a laser component 30.

[0034] Reference Figure 2 As shown, the housing 10 includes an air inlet 101 and an air outlet 102. During the air purification and disinfection process, air flows from the air inlet 101 to the air outlet 102. Specifically, a fan or other equipment can be used to drive the air flow.

[0035] Reference Figure 1-7As shown, the glass sponge 20 is provided with an air aperture 201; the air aperture 201 extends from the air inlet 101 to the air outlet 102, allowing air to flow within the air aperture 201 from the air inlet 101 to the air outlet 102. The air aperture 201 is provided with an inner wall, which surrounds and defines the outline of the air aperture 201; correspondingly, the inner wall of the air aperture 201 also extends from the air inlet 101 to the air outlet 102, allowing the laser beam to undergo refraction, reflection, scattering, and / or transmission on the inner wall of the air aperture 201.

[0036] Reference Figure 1-2 As shown, the laser component 30 is disposed inside or outside the housing 10. The laser component 30 emits a laser beam into the glass sponge 20. The laser beam is a deep ultraviolet laser beam with a wavelength of 220nm-280nm. The laser beam is refracted, scattered, and / or transmitted through the inner wall of the air hole 201, thereby forming a three-dimensional laser field within the glass sponge 20. On the one hand, since the inner wall of the air hole 201 is a continuously extending structure, the laser beam can undergo optical path changes such as refraction, reflection, scattering, and / or transmission on the continuous inner wall of the air hole 201. On the other hand, the laser beam undergoes a large number of optical path changes as it passes through the inner walls of multiple air holes 201, thereby forming a uniform "three-dimensional light field" cavity within the glass sponge 20, minimizing beam gaps and dark areas.

[0037] Reference Figure 4 As shown, in this embodiment, the glass sponge 20 has multiple air holes 201 inside. The outline, diameter, and path of each air hole 201 can be the same or different. The air holes 201 can be arranged according to certain rules or form a disordered hole structure. However, overall, the air holes 201 extend from the air inlet 101 to the air outlet 102, forming a passage from the air inlet 101 to the air outlet 102, allowing polluted air to flow from the air inlet 101 to the air outlet 102 within the air holes 201. Each air hole 201 has a corresponding inner wall, which surrounds the outline of the air hole 201. When the laser beam irradiates the inner wall of the air hole 201, at least one of the following phenomena can occur: refraction, reflection, scattering, and transmission, so that the laser beam uniformly fills the glass sponge 20. When polluted air flows through the air-light hole 201, it is fully and completely irradiated by the laser. The microorganisms in the air are irradiated by sufficient doses of ultraviolet laser from all directions, and their DNA / RNA is rapidly destroyed, achieving instantaneous elimination.

[0038] It should be noted that, in this embodiment, the glass sponge 20 can be manufactured using 3D printing technology. 3D printing technology allows for precise control of the complex air-light aperture 201 channel structure within the glass sponge 20, synergistically optimizing the laser field distribution and airflow field to achieve optimal optical effects. In other embodiments, other methods can also be used to manufacture the glass sponge 20.

[0039] The electro-optical purification and disinfection device based on glass sponge provided in this embodiment has air holes 201 set inside the glass sponge 20. The laser beam undergoes a large amount of refraction, reflection and scattering through the inner wall of multiple air holes 201, forming a cavity filled with a high-energy "three-dimensional light field" inside the glass sponge 20. This reduces the disinfection kill angle, and the air can be fully and completely irradiated by the laser during the flow of air in the air holes 201, which greatly improves the thoroughness and reliability of air purification and disinfection.

[0040] Specifically, refer to Figure 3 As shown, the air aperture 201 includes at least a first inner wall 2011 and a second inner wall 2012, allowing the laser beam to be refracted from the first inner wall 2011 to the second inner wall 2012 or reflected from the first inner wall 2011 to the second inner wall 2012; the first inner wall 2011 and the second inner wall 2012 are not parallel. When the laser beam propagates inside the glass sponge 20, part of the light is reflected by the inner wall, and part of the light is transmitted into the inner wall for refraction. The non-parallel nature of the first inner wall 2011 and the second inner wall 2012 causes the incident angles of the laser beam to be different when it strikes the first inner wall 2011 and the second inner wall 2012. This results in a large number of refractions and reflections of the laser beam at different angles within the glass sponge 20, improving the uniformity of the laser distribution within the glass sponge 20 and reducing the disinfect angle.

[0041] In one specific embodiment, multiple air holes 201 form an interconnected three-dimensional porous structure inside the glass sponge 20.

[0042] There are various states of three-dimensional porous structures, such as those mentioned above. Figure 1 and Figure 4As shown, the three-dimensional porous structure forms a random, disordered mesh structure on a plane perpendicular to the airflow direction. The airflow direction can be understood as the direction from air inlet 101 to air outlet 102. Utilizing 3D printing technology to mimic the skeletal structure of glass sponges in nature, a three-dimensional maze-like airflow path with randomized pore sizes and orientations is constructed. This disorder prevents air from forming fixed paths during flow and laser beam propagation, resulting in an extremely randomized laser propagation path. This minimizes the "light path shortcuts" or "shadow areas" that might arise from a regular structure, ensuring extremely uniform distribution of air and laser within the glass sponge body 20, achieving indiscriminate and comprehensive disinfection.

[0043] For example Figure 5 As shown, the three-dimensional porous structure can also form a spiral structure on a plane perpendicular to the airflow direction. For example... Figure 6 As shown, the three-dimensional porous structure can also form a periodically zigzag structure on a plane perpendicular to the airflow direction. This structure deflects the airflow path and the laser propagation path, effectively preventing the laser and air from passing through the glass sponge 20 in a "straight line," greatly extending the airflow path and the laser propagation path, and ensuring sufficient contact and irradiation time between the air and the laser.

[0044] For example Figure 7 As shown, the three-dimensional porous structure can also form a tree-like branch structure on a plane perpendicular to the airflow direction, constructing a fractal network that gradually branches from a large main channel into countless small channels. This efficiently and evenly distributes the airflow and laser beam energy to every tiny area of ​​the glass sponge 20, avoiding excessively high local flow rates or insufficient illumination. It achieves an optimized balance between fluid resistance and specific surface area, providing a huge surface area for disinfection reactions while ensuring low wind resistance.

[0045] In one specific embodiment, multiple air-optic holes 201 are arranged in a regular pattern inside the glass sponge 20 to form an array of microporous structures. The arrangement rule of the array of microporous structures is: forming at least one of a hexagonal honeycomb array, a square grid array, a ring array, or a triangular array on a plane perpendicular to the airflow direction. The air-optic holes 201 are periodically arranged in three-dimensional space using regular geometric patterns to form an ordered array of channels, providing a stable airflow field and a uniform laser disinfection light field, ensuring that harmful microorganisms in the air are effectively killed.

[0046] In one specific embodiment, the arrayed microporous structure comprises multiple layers of arrayed microporous structures stacked perpendicular to the airflow direction; adjacent arrayed microporous structures have different rotation angles or arrangement rules. For example, two layers of arrayed microporous structures arranged in a square grid array are stacked perpendicular to the airflow direction, causing the outline of the air-optical aperture 201 of the first arrayed microporous structure to rotate 30° or 45° relative to the outline of the air-optical aperture 201 of the second arrayed microporous structure. By setting a rotation angle between adjacent arrayed microporous structures, the propagation path of the laser beam is changed. As another example, the first layer is a hexagonal honeycomb array, and the second layer is a square grid array. By setting arrayed microporous structures with different arrangements, the propagation path of the laser beam is changed. This arrangement cleverly breaks the regular periodicity. When the laser and air travel from upstream to downstream, the direction of the channels encountered in each layer is different, thus forcing continuous path changes. This generates a uniform air and light field effect similar to a random structure, improving the efficiency of killing harmful microorganisms in the air.

[0047] In one specific embodiment, at least two layers of glass sponge 20 are disposed inside the housing 10 along the airflow direction, and the air holes 201 of adjacent glass sponge 20s have different distribution patterns. For example, referring to... Figure 8 As shown, the housing 10 contains a first glass sponge 21, a second glass sponge 22, and a third glass sponge 23. These three layers of glass sponges 20 are stacked in the direction of airflow, such that the air holes 201 of the first glass sponge 21 are arranged in a Z-shaped three-dimensional multi-microporous structure, the air holes 201 of the second glass sponge 22 are arranged in a spiral three-dimensional multi-microporous structure, and the air holes 201 of the third glass sponge 23 are arranged in a hexagonal honeycomb array. This arrangement breaks the regular periodicity, alters the paths of airflow and laser beams between different layers, and improves the efficiency of killing harmful microorganisms in the air.

[0048] In one specific embodiment, the aperture of the air-optical aperture 201 changes continuously along the direction of airflow. The aperture of the air-optical aperture 201 can gradually increase or decrease with the direction of airflow, or it can alternate between different aperture sizes. By changing the aperture of the air-optical aperture 201, both the airflow velocity and the propagation path of the laser beam can be altered, further improving air disinfection efficiency.

[0049] In one specific embodiment, the glass sponge 20 is made of a solid material with light transmittance and light scattering properties for the working wavelength of the laser beam. Specifically, the glass sponge 20 is 3D printed from quartz glass, sapphire crystal, or transparent ceramic. The glass sponge 20 provided in this embodiment has extremely low intrinsic absorption for deep ultraviolet lasers in the 220nm-280nm wavelength band. After the laser is coupled into the glass sponge 20, its energy is not largely consumed by the material itself, but can penetrate into the interior of the glass sponge 20 for propagation and utilization to the maximum extent, thus realizing the energy basis for high-efficiency elimination. The light transmittance of the glass sponge 20 ensures that the laser energy penetrates deeply to the core area of ​​the glass sponge 20 and can propagate between the air holes 201, forming a cavity filled with a high-energy "three-dimensional light field" inside the glass sponge, avoiding the energy being only partially absorbed. The surface distribution ensures that air flowing through the internal channels is fully irradiated, avoiding dead angles in the disinfection process and thus significantly improving the overall disinfection efficiency. The light scattering property of the glass sponge 20 causes continuous and subtle lateral scattering when the laser propagates within the glass sponge 20 and reaches the air-light holes 201. This transforms the directional laser beam into a uniform laser field that fills the entire three-dimensional space, forming an effective ultraviolet laser distribution within the "air" space inside the air-light holes 201. This ensures that microorganisms within the glass sponge 20 are irradiated by ultraviolet lasers from all directions, achieving a "three-dimensional disinfection" effect without dead angles. This fundamentally guarantees the high efficiency and high uniformity of air laser disinfection.

[0050] In one specific embodiment, an electrostatic generator 40 electrically connected to the glass sponge 20 is also included. The electrostatic generator 40 is used to electrostatically charge the inner surface of the glass sponge 20. The electrostatic generator 40 is a corona discharge electrode or a contact charge injection device. The electrostatic force can effectively adsorb charged particulate matter (such as dust, pollen, and aerosols) in the air, "capturing" microorganisms on the surface of the air-light holes 201 before they are exposed to ultraviolet light. Microorganisms adsorbed by electrostatic force cannot pass quickly with the airflow but are retained within the air-light holes 201 of the glass sponge 20, greatly extending their exposure time in the deep ultraviolet laser field and allowing them to receive continuous laser irradiation, thus completely eliminating harmful microorganisms. Integrating air filtration and laser disinfection into the same component, the glass sponge 20, allows for the adsorption of particulate matter through electrostatic force and the inactivation of harmful microorganisms by deep ultraviolet laser. These two processes occur simultaneously in space and time, enabling more thorough elimination of harmful microorganisms. This not only simplifies the structure but also produces excellent air purification effects through functional synergy.

[0051] Specifically, through holes are provided on the inner wall of the air-glow holes 201, allowing adjacent air-glow holes 201 to communicate with each other. When air flows within the air-glow holes 201, air can be exchanged between the channels of adjacent air-glow holes 201, thereby increasing the variability of the airflow path, further improving the uniformity of the airflow process, and enhancing the adsorption efficiency of microorganisms in the air.

[0052] It should be noted that in the aforementioned embodiments, multiple air-light holes 201 are formed in the glass sponge 20 to form various three-dimensional porous structures or array microporous structures, thereby extending or changing the path of the air-light holes 201. This allows the particulate matter to come into more full contact with the inner wall of the air-light holes 201, enabling the particulate matter to be fully adsorbed, improving the adsorption efficiency, and thus further improving the air purification effect.

[0053] In one specific embodiment, refer to Figure 9 As shown, the laser assembly 30 includes a laser emitter 32 and a laser coupling part 31. The laser coupling part 31 is located between the laser emitter 32 and the glass sponge 20, so that the laser beam emitted by the laser emitter 32 is coupled to the glass sponge 20 through the laser coupling part 31. The optical coupling component includes at least one of an optical lens, an optical galvanometer, a mirror, a collimating lens, a beam expander, or an optical fiber. For example, the laser beam emitted by the laser emitter 32 forms a large spot with a size matching the incident end face of the glass sponge 20 after passing through the collimating lens 311 and the beam expander 312, so that the laser energy is simultaneously coupled from the incident end face into the channels of all the air-optic apertures 201. It is understood that the present invention can also use other existing laser transmission optical paths and laser coupling parts 31, which will not be described in detail here.

[0054] In one specific embodiment, the inner wall surface of the air-light hole 201 is provided with a photocatalytic material layer (not shown in the figure). The photocatalytic material layer includes at least one of titanium dioxide layer, zinc oxide layer, and tungsten oxide layer. When irradiated by deep ultraviolet laser inside the device, the photocatalytic material generates highly oxidizing hydroxyl radicals, which catalyze the decomposition of organic chemical pollutants in the air (such as formaldehyde and odor molecules), degrading them into harmless CO2 and H2O, greatly expanding the purification range and application scenarios of the device.

[0055] In one specific embodiment, the surface of the air hole 201 is provided with a superhydrophobic coating (not shown in the figure), which effectively prevents water vapor and oil mist from condensing and adhering in the pores, and avoids microbial growth and secondary pollution caused by moisture.

[0056] In one specific embodiment, the laser component 30 emits a laser wavelength of 200nm-300nm. This wavelength laser has strong ultraviolet light sterilization capabilities and can effectively destroy the DNA structure of harmful microorganisms adsorbed in the micropores of the glass sponge 20.

[0057] In one specific embodiment, the inner wall of the air-light pore 201 has a nanoscale rough structure, which enhances the physical adsorption capacity for fine particulate matter through van der Waals forces, thereby improving the overall filtration accuracy.

[0058] In one specific embodiment, the electrostatic generator 40 can adjust its output voltage to adapt to different humidity environments and particulate matter characteristics, optimize the electrostatic adsorption strength, and avoid particulate matter agglomeration and blockage caused by excessive electrostatic discharge.

[0059] In one specific embodiment, the glass sponge 20 has a tortuous flow channel structure inside the air aperture 201. The shape of this flow channel structure can be S-shaped or other shapes. By changing the airflow path through the tortuous flow channel structure, the number of collisions between the air and the inner wall of the air aperture 201 is increased, allowing the air to fully contact the micropore wall during flow, thereby increasing the probability of particulate matter being adsorbed and eliminated by laser.

[0060] In one specific embodiment, a laser air disinfection device is also provided, which integrates an electro-optical purification and disinfection device based on glass sponge 20 as described in any of the above embodiments.

[0061] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0062] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. An electro-optical purification and disinfection device based on glass sponge, characterized in that, include: The casing is equipped with an air inlet and an air outlet; Glass sponge with air holes; The air aperture extends from the air inlet to the air outlet, allowing air to flow within the air aperture from the air inlet to the air outlet. A laser component is located inside or outside the housing; the laser component emits a laser beam toward the glass sponge, causing the laser beam to be refracted, reflected, scattered and / or transmitted through the inner wall of the air hole, thereby forming a three-dimensional laser field inside the glass sponge.

2. The electro-optical purification and disinfection device based on glass sponge according to claim 1, characterized in that, The air aperture includes at least a first inner wall and a second inner wall, such that the laser beam is refracted from the first inner wall to the second inner wall or reflected from the first inner wall to the second inner wall; the first inner wall and the second inner wall are not parallel.

3. The electro-optical purification and disinfection device based on glass sponge according to claim 1, characterized in that, Multiple air holes form an interconnected three-dimensional porous structure inside the glass sponge; the three-dimensional porous structure forms at least one of a random disordered network structure, a spiral structure, a Z-shaped structure, or a tree-like branching structure on a plane perpendicular to the airflow direction.

4. The electro-optical purification and disinfection device based on glass sponge according to claim 1, characterized in that, Multiple air holes are arranged in a regular pattern inside the glass sponge to form an array of microporous structures; the arrangement rule of the array of microporous structures is: forming at least one of a hexagonal honeycomb array, a square grid array, a ring array, or a triangular array on a plane perpendicular to the airflow direction.

5. The electro-optical purification and disinfection device based on glass sponge according to claim 4, characterized in that, The arrayed microporous structure comprises multiple arrayed microporous layers stacked along a direction perpendicular to the airflow direction; adjacent arrayed microporous layers have different rotation angles or different arrangement rules.

6. The electro-optical purification and disinfection device based on glass sponge according to claim 1, characterized in that, The shell contains at least two layers of glass sponge along the airflow direction, and the air pore distribution patterns of adjacent glass sponge are different.

7. The electro-optical purification and disinfection device based on glass sponge according to claim 1, characterized in that, The aperture of the air aperture changes continuously along the direction of airflow.

8. The electro-optical purification and disinfection device based on glass sponge according to claim 1, characterized in that, The glass sponge is made of a solid material that has light transmittance and light scattering properties for the working wavelength of the laser beam.

9. The electro-optical purification and disinfection device based on glass sponge according to claim 8, characterized in that, The glass sponge is 3D printed from quartz glass, sapphire crystal, or transparent ceramic.

10. An electro-optical purification and disinfection device based on glass sponge according to any one of claims 1 to 9, characterized in that, It also includes an electrostatic generator electrically connected to the glass sponge, the electrostatic generator being used to charge the inner wall surface of the glass sponge with static electricity.

11. An electro-optical purification and disinfection device based on glass sponge according to any one of claims 1 to 9, characterized in that, The laser assembly includes a laser emitter and a laser coupling component; the laser coupling component is located between the laser emitter and the glass sponge, so that the laser beam emitted by the laser emitter is coupled to the glass sponge through the laser coupling component; the laser coupling component includes at least one of an optical lens, an optical galvanometer, a reflector, a collimating lens, a beam expander, or an optical fiber.

12. The electro-optical purification and disinfection device based on glass sponge according to any one of claims 1 to 9, characterized in that, The inner wall surface of the gas-photon aperture is provided with a photocatalytic material layer, which includes at least one of a titanium dioxide layer, a zinc oxide layer, and a tungsten oxide layer.

13. The electro-optical purification and disinfection device based on glass sponge according to any one of claims 1 to 9, characterized in that, The inner wall surface of the air hole is provided with a hydrophobic coating.

14. The electro-optical purification and disinfection device based on glass sponge according to any one of claims 1 to 9, characterized in that, The laser component emits a laser wavelength of 200nm-300nm.

15. An electro-optical purification and disinfection device based on glass sponge according to any one of claims 1 to 9, characterized in that, The glass sponge is integrally formed using 3D printing technology.

16. A laser air sterilization device, characterized in that: An electro-optical purification and disinfection device based on glass sponge, as described in any one of claims 1 to 15, is integrated.

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