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

Abstract

The application relates to an electro-optical purification and disinfection device based on a glass sponge body, which comprises a shell provided with an air inlet and an air outlet; a glass sponge body provided with a plurality of air-light holes; the air-light holes extend along the direction from the air inlet to the air outlet, so that air flows in the air-light holes from the air inlet to the air outlet; a laser assembly arranged on the inner side or the outer side of the shell; the laser assembly emits a laser beam to the glass sponge body, so that the laser beam is subjected to at least one of refraction, reflection, scattering and transmission on the inner wall of the air-light hole, thereby forming a three-dimensional laser field in the glass sponge body. The application can form a three-dimensional light field cavity full of high energy in the glass sponge body, reduces disinfection dead angles, and air can be fully irradiated by laser during the air circulation in the air-light hole, so that the thoroughness and reliability of air purification and disinfection are greatly improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of laser air disinfection, in particular to an electro-optic purification and disinfection device based on a glass sponge body. BACKGROUND

[0002] At present, the traditional laser air disinfection technology usually arranges a series of mirrors or reflecting surfaces in the air flow channel, so that the laser beam passes through multiple reflections, thereby forming one or more "laser beam nets" composed of laser beams reciprocally scanning in the physical space. The contaminated air passes through the light net under the driving of the fan, and the microorganisms therein receive ultraviolet light irradiation when passing through to achieve photo-sterilization, thereby improving the comprehensiveness of air treatment.

[0003] However, the "laser beam net" formed in the traditional technology has inevitable physical gaps between the laser beams, and no matter how complex the reflection path is designed, the spatial filling rate of the light field is extremely low, so that the "laser beam net" formed in the traditional technology has beam gaps and irradiation dark areas. When the air carrying microorganisms passes through the beam gaps and irradiation dark areas, it does not receive an effective dose of irradiation, resulting in a sterilization dead angle, and the sterilization reliability and completeness are insufficient.

[0004] Therefore, it is necessary to provide an electro-optic purification and disinfection device based on a glass sponge body which can improve the reliability and completeness of air sterilization. SUMMARY

[0005] Therefore, it is necessary to provide an electro-optic purification and disinfection device based on a glass sponge body which can improve the reliability and completeness of air sterilization.

[0006] An electro-optic purification and disinfection device based on a glass sponge body, comprising:

[0007] a housing provided with an air inlet and an air outlet;

[0008] a glass sponge body provided with a plurality of air-light holes; the air-light holes extend in the direction from the air inlet to the air outlet, so that the air flows in the direction from the air inlet to the air outlet in the air-light holes;

[0009] a laser assembly arranged on the inner side or outer side of the housing; the laser assembly emits a laser beam to the glass sponge body, so that the laser beam is refracted, reflected, scattered or transmitted by the inner wall of the air-light hole, thereby forming a three-dimensional laser field in the glass sponge body.

[0010] Further, the air-light hole comprises at least a first inner wall and a second inner wall, so that the laser beam is refracted from the first inner wall to the second inner wall or the laser beam is reflected from the first inner wall to the second inner wall; the first inner wall and the second inner wall are in a non-parallel state.

[0011] Further, the plurality of air-light holes form a three-dimensional porous structure that is interconnected inside the glass sponge body; the three-dimensional porous structure forms at least one of a random and disordered mesh structure, a spiral structure, a zigzag structure or a tree branch structure in a plane perpendicular to the air flow direction.

[0012] Further, the plurality of air-light holes are regularly arranged to form an array of microporous structures inside the glass sponge body; the array of microporous structures is arranged in at least one of a hexagonal honeycomb array, a square grid array, a ring array or a triangular array in a plane perpendicular to the air flow direction.

[0013] Further, the array of microporous structures includes a plurality of stacked array of microporous layers perpendicular to the air flow direction; adjacent array of microporous layers have a rotation angle or different arrangement rules.

[0014] Further, at least two glass sponge bodies are arranged in the shell along the air flow direction, and the air-light hole distribution patterns of adjacent glass sponge bodies are different.

[0015] Further, the pore size of the air-light hole continuously changes along the air flow direction.

[0016] Further, the glass sponge body is made of a solid material that has light transmission and light scattering properties for the working waveband of the laser beam.

[0017] Further, the glass sponge body is 3D printed from quartz glass, sapphire crystal or transparent ceramic.

[0018] Further, it further comprises an electrostatic generating device electrically connected to the glass sponge body, and the electrostatic generating device is used to make the inner wall surface of the glass sponge body electrostatic.

[0019] Further, a through hole is arranged on the inner wall of the air-light hole to make the adjacent air-light holes interconnected.

[0020] Further, 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 body, so that the laser beam emitted by the laser emitter is coupled to the glass sponge body through the laser coupling component; the laser coupling component includes at least one of an optical lens, an optical vibration mirror, a reflecting mirror, a collimating mirror, a beam expander or an optical fiber.

[0021] Further, the inner wall surface of the air-light hole is provided with a layer of photocatalytic material, and the layer of photocatalytic material includes at least one of a titanium dioxide layer, a zinc oxide layer and a tungsten oxide layer.

[0022] Further, the inner wall surface of the air-light hole is provided with a hydrophobic coating.

[0023] Further, the laser assembly emits laser light with a wavelength of 200-300 nm.

[0024] Further, the glass sponge body is integrally formed by 3D printing technology.

[0025] A laser air disinfection device integrated with a glass sponge body-based electro-optic purification and disinfection device according to any one of the above.

[0026] Beneficial effects: The glass sponge body-based electro-optic purification and disinfection device provided by the application is provided with a plurality of air-light holes in the glass sponge body, so that the laser beam passes through the inner wall of the air-light hole and is refracted, reflected and scattered a large number of times, so that a "three-dimensional light field" cavity full of high energy is formed in the glass sponge body, and the killing dead angle is reduced. During the circulation of air in the air-light hole, the air can be fully irradiated by laser, which greatly improves the thoroughness and reliability of air purification and disinfection. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0028] Figure 1 is a schematic view of a glass sponge body;

[0029] Figure 2 is a schematic view of the overall structure of an electro-optic purification and disinfection device;

[0030] Figure 3 is a schematic view of an air-light hole;

[0031] Figure 4 is a schematic view of a random net-shaped three-dimensional multi-micropore structure formed by the air-light hole of the glass sponge body;

[0032] Figure 5 is a schematic view of a spiral-shaped three-dimensional multi-micropore structure formed by the air-light hole of the glass sponge body;

[0033] Figure 6 is a schematic view of a Z-shaped multi-micropore structure formed by the air-light hole of the glass sponge body;

[0034] Figure 7 is a schematic view of a tree-branch-shaped multi-micropore structure formed by the air-light hole of the glass sponge body;

[0035] Figure 8 is a schematic view of the structure of a multi-layer glass sponge body after combination;

[0036] Figure 9 FIG. 1 is a schematic diagram of a laser transmission optical path structure.

[0037] Legend of reference signs:

[0038] 10, housing; 20, glass sponge body; 21, first glass sponge body; 22, second glass sponge body; 23, third glass sponge body; 30, laser assembly; 40, electrostatic generating device;

[0039] 101, air inlet; 102, air outlet;

[0040] 201, air-light hole;

[0041] 2011, first inner wall; 2012, second inner wall;

[0042] 31, laser coupling part; 32, laser emitter;

[0043] 311, collimating mirror; 312, beam expander; DETAILED DESCRIPTION

[0044] In order to make the above objectives, features and advantages of the present application more apparent, specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in a number of different ways beyond the specific embodiments described and it is therefore contemplated that the present application not be limited to the embodiments set forth in the following description.

[0045] In the description of the present 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" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0046] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, for example, two, three, etc., unless otherwise specifically limited.

[0047] In the present application, unless specifically defined otherwise, the terms "mount", "connected", "connecting", "fixed", and the like, should be understood broadly, for example, can be fixed connection, can also be detachable connection, or integral; can be mechanical connection, can also be electrical connection; can be direct connection, can also be indirect connection through an intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements, unless specifically defined otherwise. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0048] In the present application, unless specifically defined otherwise, the first feature is "on" or "under" the second feature. The first and second features can be in direct contact, or the first and second features can be in indirect contact through an intermediate medium. Moreover, the first feature "above", "over" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "under" and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0049] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there can be a mediating element. When an element is referred to as "connected" to another element, it can be directly connected to the other element or there can be a mediating element. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are for illustrative purposes only and are not the only implementation.

[0050] Embodiment

[0051] Referring to Figure 1 And Figure 2 As shown in the figure, the embodiment provides an electro-optical purification and disinfection device based on glass sponge body, which comprises a shell 10, a glass sponge body 20 and a laser assembly 30.

[0052] Referring to Figure 2 As shown in the figure, the shell 10 comprises an air inlet 101 and an air outlet 102, and the air flows from the air inlet 101 to the air outlet 102 during the air purification and disinfection process. A fan or other equipment can be used to drive the air flow.

[0053] Referring to Figures 1-7As shown, the glass sponge body 20 is provided with an air-light hole 201; the air-light hole 201 extends in the direction from the air inlet 101 to the air outlet 102, so that the air flows in the direction from the air inlet 101 to the air outlet 102 in the air-light hole 201. The air-light hole 201 is provided with an inner wall, and the profile of the air-light hole 201 is defined by the inner wall; accordingly, the inner wall of the air-light hole 201 also extends in the direction from the air inlet 101 to the air outlet 102, so that the laser beam can at least one of refraction, reflection, scattering, and transmission on the inner wall of the air-light hole 201.

[0054] Referring to Figures 1-2 As shown, the laser assembly 30 is arranged inside or outside the shell 10; the laser assembly 30 emits a laser beam to the glass sponge body 20, and the wavelength of the laser beam is a deep ultraviolet laser beam with a wavelength of 220-280 nm, so that the laser beam at least one of refraction, reflection, scattering, and transmission on the inner wall of the air-light hole 201, thereby forming a three-dimensional laser field in the glass sponge body 20. On the one hand, the inner wall of the air-light hole 201 is a continuous extension structure, so that the laser beam can at least one of refraction, reflection, scattering, and transmission on the continuous inner wall of the air-light hole 201; on the other hand, the laser beam passes through the inner wall of multiple air-light holes 201 and changes a lot of light paths, thereby forming a uniform “three-dimensional light field” cavity in the glass sponge body 20, and avoiding beam gaps and dark areas as much as possible.

[0055] Referring to Figure 4 As shown, in this embodiment, the glass sponge body 20 is provided with a plurality of air-light holes 201, and the profiles, diameters, and paths of the air-light holes 201 can be the same or different, and the air-light holes 201 can be arranged according to certain rules or form disordered hole structures; however, overall, the air-light holes 201 extend from the direction of the air inlet 101 to the direction of the air outlet 102, forming a path from the air inlet 101 to the air outlet 102, so that the contaminated air can flow in the direction from the air inlet 101 to the air outlet 102 in the air-light hole 201. Each air-light hole 201 has a corresponding inner wall, and the profile of the air-light hole 201 is surrounded by the inner wall, so that the laser beam can at least one of refraction, reflection, scattering, and transmission when the laser beam irradiates the inner wall of the air-light hole 201, and the laser beam uniformly fills the glass sponge body 20. When the contaminated air flows in the air-light hole 201, it is fully irradiated by the laser beam, the microorganisms in the air are irradiated by the ultraviolet laser beam from all directions and with sufficient dose, their DNA / RNA is rapidly destroyed, and the instant disinfection is achieved.

[0056] It should be noted that in the present embodiment, the glass sponge body 20 can be manufactured by using 3D printing technology. The 3D printing technology can accurately control the complex air-light hole 201 channel structure in the glass sponge body 20, cooperatively optimize the laser field distribution and the air flow field, and realize the optimization of the optical effect of the glass sponge body 20. In other embodiments, other methods can also be used to manufacture the glass sponge body 20.

[0057] The glass sponge body-based electro-optical purification and disinfection device provided in the present embodiment is provided with the air-light hole 201 in the glass sponge body 20. The laser beam passes through the inner walls of a plurality of air-light holes 201 to be refracted, reflected and scattered, a "three-dimensional light field" cavity full of high energy is formed in the glass sponge body 20, the killing dead angle is reduced, and the air flowing in the air-light hole 201 can be fully irradiated by the laser, which greatly improves the thoroughness and reliability of air purification and disinfection.

[0058] Specifically, referring to Figure 3 , the air-light hole 201 at least includes a first inner wall 2011 and a second inner wall 2012, so that the laser beam is refracted from the first inner wall 2011 to the second inner wall 2012 or the laser beam is 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 in a non-parallel state. When the laser beam propagates in the glass sponge body 20, part of the light is reflected by the inner wall, and part of the light is transmitted into the inner wall to be refracted. The first inner wall 2011 and the second inner wall 2012 are in a non-parallel state, so that the incident angle of the laser beam irradiated to the first inner wall 2011 and the second inner wall 2012 is different, thereby causing the laser beam to be refracted and reflected in a large amount and at different angles in the glass sponge body 20, improving the uniformity of the distribution of the laser in the glass sponge body 20, and reducing the killing dead angle.

[0059] In a specific embodiment, a plurality of air-light holes 201 form a three-dimensional porous structure that is interconnected in the glass sponge body 20.

[0060] The three-dimensional porous structure has various states, for example, referring to Figure 1 and Figure 4As shown, the three-dimensional porous structure forms a random and disordered mesh structure in the plane perpendicular to the air flow direction. Wherein, the air flow direction can be understood as the direction from the air inlet 101 to the air outlet 102. By using 3D printing technology to imitate the skeletal structure of glass sponge in nature, a three-dimensional maze-shaped air flow path with random aperture and direction is constructed. This disorder makes it impossible for air to form a fixed path during flow and for the laser beam to form a fixed path during propagation. The propagation path of the laser is extremely randomized, which can maximize the elimination of the "light path shortcut" or "shadow area" that may be caused by regular structures, ensuring that air and laser are extremely uniform in the glass sponge body 20, and achieving non-discriminatory and full-coverage disinfection.

[0061] For another example Figure 5 As shown, the three-dimensional porous structure can also form a spiral structure in the plane perpendicular to the air flow direction. For example Figure 6 As shown, the three-dimensional porous structure can also form a periodically folded Z-shaped structure in the plane perpendicular to the air flow direction. The above structure causes the air flow path and the laser propagation path to be deflected, effectively preventing the laser and air from "straight line" passing through the glass sponge body 20, greatly extending the air flow path and the laser propagation path, and ensuring sufficient contact and irradiation time of air and laser.

[0062] For another example Figure 7 As shown, the three-dimensional porous structure can also form a tree-like branching structure in the plane perpendicular to the air flow direction. A fractal network is constructed from a large main channel gradually branching into countless small channels, which efficiently and uniformly distributes air flow and laser beam energy to every small area of the glass sponge body 20, avoids local high flow rate or insufficient light, and realizes the optimized balance between fluid resistance and specific surface area, while ensuring low wind resistance, providing a large surface area for disinfection reaction.

[0063] In a specific embodiment, a plurality of said air and light holes 201 are arranged in a regular array to form an array multi-micro-hole structure inside the glass sponge body 20; the arrangement rule of the array multi-micro-hole structure is that at least one of a hexagonal honeycomb array, a square grid array, a ring array or a triangular array is formed in the plane perpendicular to the air flow direction. The air and light holes 201 are periodically arranged in three-dimensional space using regular geometric shapes to form an ordered hole array, providing a stable air flow field and a uniform laser disinfection light field, and ensuring that harmful microorganisms in the air are effectively killed.

[0064] 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.

[0065] 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.

[0066] 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.

[0067] In a specific embodiment, the glass sponge body 20 is made of a solid material that has light transmissivity and light scattering properties to the working waveband of the laser beam. Specifically, the glass sponge body 20 is 3D printed from quartz glass, sapphire crystal or transparent ceramic. The glass sponge body 20 provided in this embodiment has extremely low intrinsic absorption to deep ultraviolet laser beams in the 220-280 nm waveband. After the laser beam is coupled into the glass sponge body 20, its energy is not consumed by the material itself, but can be maximally transmitted into the interior of the glass sponge body 20 for propagation and utilization, realizing the energy basis for efficient disinfection. The light transmissivity of the glass sponge body 20 ensures that the laser energy penetrates deeply into the core region of the glass sponge body 20 and can propagate between the air-light holes 201, forming a “three-dimensional light field” cavity filled with high-energy inside the glass sponge body, avoiding energy distribution only on the surface, so that the air flowing through the internal holes can also be fully irradiated, avoiding disinfection dead angles, thereby greatly improving the overall disinfection efficiency. The light scattering property of the glass sponge body 20 enables the laser beam to be continuously and slightly scattered laterally when it propagates in the glass sponge body 20, changing the directional laser beam into a uniform laser field that fills the entire three-dimensional space, and effectively distributing the ultraviolet laser in the “air” space inside the air-light hole 201. This enables microorganisms inside the glass sponge body 20 to be irradiated by ultraviolet laser beams from all directions, realizing a “three-dimensional disinfection” effect without dead angles, and fundamentally ensuring the high efficiency and high uniformity of air laser disinfection.

[0068] In a specific embodiment, an electrostatic generating device 40 is further included and electrically connected to the glass sponge body 20. The electrostatic generating device 40 is used to electrify the inner wall surface of the glass sponge body 20. The electrostatic generating device 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, aerosol) in the air. The microorganisms are “captured” on the surface of the hole of the air-light hole 201 before being irradiated by ultraviolet light. The microorganisms adsorbed by electrostatic force cannot pass through the air flow quickly, but are retained in the hole of the air-light hole 201 of the glass sponge body 20, greatly prolonging the time of exposure to the deep ultraviolet laser field and receiving continuous laser irradiation, thereby completely eliminating harmful microorganisms. By integrating air filtration and laser disinfection in the same component, i.e., the glass sponge body 20, the particulate matter is adsorbed by electrostatic force and the harmful microorganisms are inactivated by deep ultraviolet laser. The two processes are synchronized in space and time, which can more thoroughly disinfect harmful microorganisms, simplifying the structure and achieving excellent air purification effect through functional synergy.

[0069] Specifically, a through hole is arranged on the inner wall of the air-light hole 201, so that the adjacent air-light holes 201 are communicated with each other. When the air flows in the air-light hole 201, the air can be exchanged between the channels of the adjacent air-light holes 201, so as to increase the variability of the air flow path, further improve the uniformity in the air flow process, and improve the adsorption efficiency of the microorganisms in the air.

[0070] It should be noted that in the foregoing embodiments, a plurality of air-light holes 201 form various three-dimensional porous structures or arrayed microporous structures in the glass sponge body 20, the path of the air-light hole 201 is extended or changed, the particulate matter can be more fully contacted with the inner wall of the air-light hole 201, the particulate matter can be fully adsorbed, the adsorption efficiency is improved, and thus the air purification effect is further improved.

[0071] In a specific embodiment, referring to Figure 9 As shown in the figure, 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 body 20, so that the laser beam emitted by the laser emitter 32 is coupled to the glass sponge body 20 through the laser coupling part 31. The optical coupling part includes at least one of an optical lens, an optical vibration mirror, a reflecting mirror, a collimating mirror, a beam expander, or an optical fiber. Exemplarily, the laser beam output after the laser beam emitted by the laser emitter 32 passes through the collimating mirror 311 and the beam expander 312 forms a large light spot with a size matching the incident end face of the glass sponge body 20, so that the laser energy is simultaneously coupled into the channels of all the air-light holes 201 from the incident end face. Understandably, the present application can also use other existing laser transmission light paths and laser coupling parts 31, which will not be described here.

[0072] In a specific embodiment, the inner wall surface of the air-light hole 201 is provided with a photocatalytic material layer (not shown in the figure), which includes at least one of a titanium dioxide layer, a zinc oxide layer, and a tungsten oxide layer. When irradiated by deep ultraviolet laser inside the device, the photocatalytic material generates strong oxidizing hydroxyl radicals, catalytically decomposes organic chemical pollutants (such as formaldehyde and odor molecules) in the air, and degrades them into harmless CO2 and H2O, greatly widening the purification range and application scenarios of the device.

[0073] In a specific embodiment, the surface of the air-light hole 201 is provided with a super-hydrophobic coating (not shown in the figure), which effectively prevents water vapor and oil mist from condensing and adhering in the channel, and avoids the breeding and secondary pollution of microorganisms caused by moisture.

[0074] In a specific embodiment, the laser assembly 30 emits laser light with a wavelength of 200-300 nm, which has strong ultraviolet light sterilization capability and can effectively destroy the DNA structure of harmful microorganisms adsorbed in the micropores of the glass sponge body 20.

[0075] In a specific embodiment, the inner wall of the gas-light hole 201 has a nanoscale rough structure, which enhances the physical adsorption capacity of micro-particles through van der Waals force, thereby improving the overall filtration precision.

[0076] In a specific embodiment, the electrostatic generator 40 can adjust the output voltage to adapt to different humidity environments and particle characteristics, optimize the electrostatic adsorption strength, and avoid particle agglomeration caused by excessive static electricity.

[0077] In a specific embodiment, the glass sponge body 20 has a curved and winding flow channel structure inside the gas-light hole 201. The shape of the flow channel structure can be S-shaped or other shapes. The curved and winding flow channel structure changes the flow path of the air, increases the collision times of the air with the inner wall of the gas-light hole 201, and makes the air fully contact with the micropore wall during the flow process, thereby improving the probability of particle adsorption and laser sterilization.

[0078] In a specific embodiment, a laser air sterilization device is also provided, which integrates the electro-optical purification and sterilization device based on the glass sponge body 20 as described in any of the above embodiments.

[0079] The technical features of the above-described embodiments can be combined in any manner. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described, but as long as the combinations of the technical features do not contradict, they should be considered within the scope of the present application.

[0080] The above-described embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the patent scope of the application. It should be noted that for ordinary skilled persons in the art, several modifications and improvements can be made without departing from the concept of the present application, and these are within the protection scope of the present application. Therefore, the patent protection scope of the present application should be subject to the appended claims.

Claims

1. A glass sponge-based electro-optical decontamination and disinfection device, characterized in that, The application relates to a glass sponge body-based electro-optical purification and disinfection device. The glass sponge body is formed by 3D printing of a solid material which has light transmission and light scattering properties for the working wave band of a laser beam. The laser assembly is arranged on the inner side or the outer side of the shell; the laser assembly emits a laser beam to the glass sponge body, so that the laser beam is refracted, reflected, scattered or transmitted by the inner wall of the gas-light hole, thereby forming a three-dimensional laser field in the glass sponge body; the gas-light hole comprises at least a first inner wall and a second inner wall, so that the laser beam is refracted from the first inner wall to the second inner wall or the laser beam is reflected from the first inner wall to the second inner wall. The first inner wall and the second inner wall are in a non-parallel state. The plurality of gas-light holes form a three-dimensional porous structure which is interconnected in the glass sponge body; the three-dimensional porous structure forms at least one of a random and disordered net-shaped structure, a spiral structure, a zigzag structure or a tree-shaped branch structure in a plane perpendicular to the air flow direction.

2. A glass sponge-based electro-optical decontamination and disinfection device according to claim 1, characterized in that, The plurality of gas-light holes are regularly arranged to form an array multi-micropore structure in the glass sponge body; the array multi-micropore structure is regularly arranged in at least one of a hexagonal honeycomb array, a square grid array, a ring array or a triangular array in a plane perpendicular to the air flow direction.

3. A glass sponge-based electro-optical decontamination and disinfection device according to claim 1, characterized in that, The array multi-micropore structure comprises a plurality of stacked array multi-micropore layers in a direction perpendicular to the air flow direction; adjacent array multi-micropore layers have a rotation included angle or different arrangement rules.

4. A glass sponge-based electro-optical decontamination and disinfection device according to claim 1, characterized in that, At least two glass sponge bodies are arranged in the shell along the air flow direction, and the distribution forms of the gas-light holes of adjacent glass sponge bodies are different.

5. A glass spongia-based electro-optical decontamination and disinfection device according to claim 4, characterized in that, The pore diameter of the gas-light hole continuously changes along the air flow direction.

6. A glass sponge-based electro-optical decontamination and disinfection device according to claim 1, characterized in that, The glass sponge body is formed by 3D printing of quartz glass, sapphire crystal or transparent ceramic.

7. A glass sponge-based electro-optical decontamination and disinfection device according to claim 1, characterized in that, The electrostatic generating device is electrically connected to the glass sponge body, and the electrostatic generating device is used for electrifying the inner wall surface of the glass sponge body.

8. A glass sponge-based electro-optical decontamination and disinfection device according to claim 1, characterized in that, The laser assembly comprises a laser emitter and a laser coupling component; the laser coupling component is arranged between the laser emitter and the glass sponge body, so that the laser beam emitted by the laser emitter is coupled to the glass sponge body through the laser coupling component; the laser coupling component comprises at least one of an optical lens, an optical vibration mirror, a reflecting mirror, a collimating mirror, a beam expander or an optical fiber.

9. A glass sponge-based electro-optical decontamination and disinfection device according to any one of claims 1 to 8, characterized in that, The inner wall surface of the gas-light hole is provided with a photocatalytic material layer which comprises at least one of a titanium dioxide layer, a zinc oxide layer and a tungsten oxide layer.

10. A glass sponge-based electro-optical decontamination and disinfection device according to any one of claims 1-8, characterized in that, The inner wall surface of the gas-light hole is provided with a hydrophobic coating.

11. A glass sponge-based electro-optical decontamination and disinfection device according to any one of claims 1-8, characterized in that, The wavelength of the laser emitted by the laser assembly is 200-300 nm.

12. A glass sponge-based electro-optical decontamination and disinfection device according to any one of claims 1-8, characterized in that, The glass sponge body is integrally formed by 3D printing technology.

13. A glass sponge-based electro-optical decontamination and disinfection device according to any one of claims 1-8, characterized in that, The glass sponge body-based electro-optical purification and disinfection device is integrated.

14. A glass sponge-based electro-optical decontamination and disinfection device according to any one of claims 1-8, characterized in that, ​ 15. A laser air disinfection apparatus, characterized by: ​

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