A protective mask capable of killing pathogenic microorganisms

Abstract

The present invention discloses a protective mask capable of killing pathogenic microorganisms, comprising: a reflective cover, with a photocatalyst coating provided on the inner side of the reflective cover; a light-transmitting cover, which is arranged on the inner side of the reflective cover; the light-transmitting cover is provided with a first air inlet and a first air outlet; a deep ultraviolet generating device, which is located on the inner side of the light-transmitting cover; the deep ultraviolet generating device includes a substrate and a deep ultraviolet integrated module, the deep ultraviolet integrated module is arranged on the substrate, the substrate is provided with a second air inlet and a second air outlet corresponding to the first air outlet; and a latex sealing ring, which is adapted to the outer edge of the substrate. By combining UVC LED deep ultraviolet technology, photocatalyst technology, and ecological negative oxygen ion technology, the present invention effectively kills pathogenic microorganisms such as viruses and bacteria entering the mask, ensuring that the air inhaled by the human body is fresh air without pathogenic microorganisms, odorless, and rich in negative oxygen ions.

Description

Technical Field

[0001] The present invention relates to the technical field of sanitary protection products, and more specifically to an application of UVC LED deep ultraviolet technology, photocatalyst technology, and ecological-grade negative oxygen ions that can kill pathogenic microorganisms in protective masks, which can kill viruses, bacteria and other pathogenic microorganisms that enter the masks, and ensure that human bodies inhale fresh air that does not contain pathogenic microorganisms, is fresh, odorless, and rich in negative oxygen ions. Background Art

[0002] According to research findings, the existing virus transmission routes mainly include direct transmission, aerosol transmission and contact transmission. Direct transmission refers to infection caused by direct inhalation of exhaled gas from patients’ sneezes, coughs and talks. Aerosol transmission refers to droplets mixed in the air to form aerosols, which lead to infection after inhalation. Contact transmission refers to droplets deposited on the surface of objects, contacting contaminated hands, and then contacting the mucous membranes of the mouth, nose, eyes, etc., leading to infection. Most viruses cannot penetrate the skin and invade the human body. If you maintain the correct hand washing and frequent hand washing habits, you can avoid the above transmission routes. Therefore, protecting the mouth, nose, and eyes from viruses and bacteria and wearing a mask are the key to preventing and controlling viruses, especially wearing a mask that can kill viruses and bacteria.

[0003] At present, commonly used masks mainly play the role of blocking and filtering pathogenic microorganisms, such as common disposable medical masks, N95 masks, KF94 masks, etc.; the killing rate of viruses by better N95 masks is about 95%, and there are still some fish that slip through the net and endanger the population, and people wearing N95 masks generally feel suffocated and uncomfortable; in addition, there are some masks made of bactericidal materials such as bactericidal fibers, activated carbon adsorption, silver zeolite, etc., which have certain bactericidal and disinfection effects, but are not very ideal for instantly and comprehensively killing bacteria and viruses; there are also some bactericidal and disinfection masks made of photocatalyst fiber materials on the market, but due to the lack of deep ultraviolet light source irradiation, they only rely on sunlight irradiation, and the functional particles released by photocatalyst excitation are poor, so their bactericidal and disinfection effects are relatively poor.

[0004] Therefore, how to provide a protective mask that can kill pathogenic microorganisms by combining UVC LED deep ultraviolet sterilization technology, photocatalyst sterilization technology, and ecological-grade negative oxygen ion technology is a problem that technical personnel in this field urgently need to solve. Summary of the invention

[0005] In view of this, the present invention provides a protective mask that can kill pathogenic microorganisms. By combining UVC LED deep ultraviolet technology, photocatalyst technology, and ecological negative oxygen ion technology, viruses, bacteria and other pathogenic microorganisms that enter the mask can be effectively killed, ensuring that the human body inhales fresh air that does not contain pathogenic microorganisms, is odorless, and is rich in negative oxygen ions.

[0006] To achieve the above object, the present invention adopts the following technical solutions:

[0007] A protective mask capable of killing pathogenic microorganisms, comprising:

[0008] A reflective cover, on the inner side of which a photocatalyst coating is provided;

[0009] A light-transmitting cover, which is arranged on the inner side of the reflective cover, and the light-transmitting cover is adapted to the arc shape of the reflective cover; the light-transmitting cover is provided with a first air inlet and a first air outlet;

[0010] A deep ultraviolet generating device, which is located on the inner side of the light-transmitting cover; the deep ultraviolet generating device includes a substrate and a deep ultraviolet integrated module, the deep ultraviolet integrated module is arranged on the substrate, and the substrate is provided with a second air inlet and a second air outlet corresponding to the first air outlet;

[0011] And a latex sealing ring, which is adapted to the outer edge of the substrate.

[0012] Preferably, in the above-mentioned protective mask capable of killing pathogenic microorganisms, the reflective cover and the light-transmitting cover are connected by magnetic nails; the light-transmitting cover and the deep ultraviolet generating device are connected by threads, and threaded holes are provided on both the inner side of the light-transmitting cover and the substrate, and screws sequentially pass through the threaded holes of the substrate and the light-transmitting cover to realize the fixed connection between the substrate and the light-transmitting cover.

[0013] The beneficial effects of the above technical solutions are: the connection method of magnetic nails is convenient for users to disassemble the reflective cover of the protective mask, facilitating the replacement of the filter mesh, and convenient for removing the reflective cover to use the protective mask as a small deep ultraviolet sterilization lamp, which can disinfect and sterilize items such as elevator buttons, door handles, gloves, and clothes, with a simple structure and convenient use.

[0014] Preferably, in the above-mentioned protective mask capable of killing pathogenic microorganisms, the photocatalyst coating is a composite nanomaterial of titanium dioxide and nano silver, and the fineness of the photocatalyst coating material is 5-10 nm.

[0015] The beneficial effects of the above technical solutions are: titanium dioxide has a strong photocatalytic bactericidal effect, and the free radicals generated by it can destroy the cell wall structure, causing the cell wall to break and rupture, the plasma membrane to disintegrate, and then damage the inner membrane and cell components, resulting in the overflow of cell contents and the appearance of cell cavitation death. The photocatalytic reaction process of titanium dioxide is largely determined by the deep ultraviolet photons, so sufficient deep ultraviolet energy, that is, electrical energy, is required to excite the titanium dioxide photocatalyst material;

[0016] Nanosilver can produce chemical reactions with bacteria and inhibit bacterial reproduction. Silver ions can damage the DNA molecules and proteins of cells, causing the DNA chains of cells to break and proteins to denature, leading to cell death.

[0017] Therefore, while UVC LED deep ultraviolet rays kill viruses and bacteria, they can also stimulate photocatalysts to produce small-particle negative oxygen ions during the catalytic process. Specifically, photocatalysts have excellent deep ultraviolet absorption capabilities. The hydroxyl radicals (·OH) generated under deep ultraviolet activation remain on the surface of the photocatalyst film, and highly active oxygen ions (·O2ˉ) are released into the air. This oxygen negative ion (·O2ˉ) with strong oxidizing ability destroys coenzymes such as coenzyme A and respiratory enzymes in the cells, allowing them to play an antibacterial role and stop the reproduction of bacteria or fungi; at the same time, when positively charged holes or hydroxyl radicals (·OH) come into contact with negatively charged microbial cells, they adsorb each other based on Coulomb attraction and effectively break through the cell membrane, denaturing cell proteins, making it impossible to breathe, metabolize, and reproduce until the cell dies. It has a significant killing effect on single-cell organisms such as bacteria, viruses, spores, molds, and viruses, and can decompose toxins released by bacteria or fungi and decompose organic pollutants.

[0018] Preferably, in the above-mentioned protective mask that can kill pathogenic microorganisms, the reflective cover is a cone, and the reflective cover is a metal or metal-plated engineering plastic that deep ultraviolet rays cannot penetrate; further preferably, it is an aluminum alloy or an engineering plastic plated with an aluminum film or a copper film.

[0019] The beneficial effects of the above technical solution are: the conical reflective cover can achieve high-precision and high-intensity irradiation of deep ultraviolet rays; and the aperture area of the fan-shaped opening of the conical reflective cover covers the extended line area of the heat dissipation light guide cover, ensuring that all deep ultraviolet rays are focused and irradiated to the photocatalyst area of the reflective cover with high intensity and high precision, thereby stimulating the photocatalyst material and achieving the effect of killing viruses and bacteria.

[0020] Preferably, in the above-mentioned protective mask capable of killing pathogenic microorganisms, the inner surface of the reflective cover is rough and uneven.

[0021] The beneficial effects of the above technical solution are: it can increase the probability of capturing organic gas molecules such as bacteria, viruses, formaldehyde, VOC, etc., produce a binary synergistic effect of nano-interface materials and thus enhance degradation.

[0022] Preferably, in the above-mentioned protective mask capable of killing pathogenic microorganisms, an air inlet and exhaust dividing frame is provided between the first air inlet and the first exhaust port.

[0023] The beneficial effects of the above technical solution are as follows: The intake and exhaust partition frame can ensure that the gas exhaled by the wearer does not enter the first air inlet, ensuring that the fresh air enters the first air inlet, effectively preventing the exhaled gas from being inhaled again.

[0024] Preferably, in the above-mentioned protective mask capable of killing pathogenic microorganisms, the light-transmitting cover is quartz glass, black glass, soda-lime-silica glass or soda-lime glass that can transmit deep ultraviolet rays, and more preferably quartz glass that can transmit deep ultraviolet rays.

[0025] The beneficial effects of the above technical solution are as follows: The deep ultraviolet light passes through the light-transmitting cover and irradiates the photocatalyst material area, triggering the photocatalyst material.

[0026] Preferably, in the above-mentioned protective mask capable of killing pathogenic microorganisms, the deep ultraviolet integration module includes a heat dissipation light guide cover, lamp beads, a battery connected to the lamp beads through a wire, a circuit board, a charging port, a switch and a power indicator light. Among them, the bottom of the heat dissipation light guide cover is integrally integrated with the lamp bead base, the lamp beads are fixed through a lamp bead substrate, and the lamp bead substrate is fixed on the lamp bead base.

[0027] In order to further optimize the above technical solution, the lamp bead substrate is double-sided copper-clad.

[0028] The beneficial effects of the above technical solution are as follows: The lamp beads are prefabricated and integrated on the lamp bead substrate, and the heat dissipation light guide cover and the lamp bead base are prefabricated and integrated. The two parts are integrally welded and fixed on the substrate. On the one hand, the present invention selects the LED lamp bead substrate with the smallest thermal resistance, controlled below 85 °C. On the other hand, the copper-clad area of the lamp bead base is enlarged to achieve a better heat dissipation effect. At the same time, in the structural design of the deep ultraviolet integration module, a heat dissipation light guide cover is provided. The heat dissipation light guide cover and the reflection cover are connected by magnetic nails made of metal with excellent heat dissipation performance, promoting the heat conduction in the mask to the reflection cover for dissipation, ensuring that the service life of the LED lamp beads is more than 20,000 hours, and at the same time reducing the temperature in the mask to ensure the comfort of the wearer.

[0029] Preferably, in the above-mentioned protective mask capable of killing pathogenic microorganisms, an air guide frame is further provided on the substrate.

[0030] The beneficial effects of the above technical solution are as follows: The setting of the air guide frame can ensure that the fresh air after deep ultraviolet sterilization of the air flowing in from the first air inlet enters the second air inlet under the diversion control of the diversion frame, ensuring that the air inhaled by the human body is the processed fresh air.

[0031] Preferably, in the above-mentioned protective mask capable of killing pathogenic microorganisms, the light-transmitting cover is provided with a plurality of ear-hanging studs, the ear-hanging studs are matched with the mask straps, the mask straps are double-forked latex ear loops, and a plurality of small holes adapted to the ear-hanging studs are provided at the fork ends of the mask straps.

[0032] The beneficial effect of the above technical solution is that the provision of a plurality of small holes on the ear loops adapted to the studs can meet the wearing needs of wearers with different head circumferences.

[0033] Preferably, in the above-mentioned protective mask capable of killing pathogenic microorganisms, the second air inlet is provided with a filtering structure composed of a filter mesh and a mesh frame. The filter mesh is fixedly installed on the mesh frame, and the mesh frame is snap-connected to the second air inlet.

[0034] The beneficial effect of the above technical solution is that the air is effectively blocked by the filtering structure, and at the same time, combined with UVC LED deep ultraviolet technology, photocatalyst technology and negative oxygen ion purification technology, the dual effects of blocking and killing pathogenic microorganisms are achieved.

[0035] Preferably, in the above-mentioned protective mask capable of killing pathogenic microorganisms, the filter mesh is made of medical filter non-woven fabric material.

[0036] The beneficial effect of the above technical solution is that pathogenic microorganisms such as viruses and bacteria are filtered and blocked to play a protective role, meeting the above protective standards for medical masks.

[0037] Preferably, in the above-mentioned protective mask capable of killing pathogenic microorganisms, the photocatalyst coating corresponds to the position covered by the extension line of the heat dissipation light guide cover.

[0038] The beneficial effect of the above technical solution is: to ensure that under the condensing effect of the light guide cover, the deep ultraviolet light is effectively irradiated to the area of the photocatalyst coating to prevent light loss.

[0039] Preferably, in the above-mentioned protective mask capable of killing pathogenic microorganisms, the wavelength of the lamp bead is 260 - 270nm, the deep ultraviolet output power is 1800 - 2000mW, the light-emitting angle is between 120 - 140°, and a constant current drive mode is adopted; further preferably, the wavelength of the lamp bead is 265nm, and two 1000mW lamp beads are used as the light source, and the light-emitting angle is 120°.

[0040] The beneficial effects of the above technical solution are as follows: 260 - 270nm is the peak value of the DNA absorption curve, which is the best wavelength for killing bacteria and viruses, and has the best effect on killing viruses and bacteria; at the above deep ultraviolet output power, it can meet the requirement of instantly killing various viruses and bacteria within one second, and the effect is extremely remarkable; in addition, if the constant voltage drive mode is adopted in the present invention, the increase in the LED temperature during the working process will cause the LED current to increase and the power to be uncontrollable, resulting in poor consistency of the sterilization effect of the product. However, adopting the constant current drive mode can achieve the optimal sterilization effect.

[0041] The deep ultraviolet UVC LED chip of the present invention irradiates the gas inside the mask under the metal shell packaging, and controls the directional irradiation of light through the heat dissipation light guide cover with the functions of light concentration and radiation protection of the metal and the reflection cover with the protection function at the front end, which will not cause radiation or harm to the human body. Moreover, the applied UVC LED chip has passed the ultraviolet leakage test and fully complies with the "Regulations on the Hygiene and Safety Evaluation of Disinfection Products" issued by the National Health and Family Planning Commission.

[0042] As can be seen from the above technical solution, compared with the prior art, the present invention discloses a protective mask capable of instantly killing pathogenic microorganisms, which has the following advantages:

[0043] The protective mask of the present invention capable of killing pathogenic microorganisms has multiple functions of killing viruses and bacteria. Firstly, UVC LED deep ultraviolet rays kill viruses and bacteria; secondly, when the photocatalyst undergoes a photocatalytic reaction under the irradiation of UVC LED deep ultraviolet rays, the hydroxyl radicals (·OH) generated remain on the surface of the photocatalyst film, and the highly reactive oxygen ions (·O2ˉ) are free in the air. The oxygen anions (·O2ˉ) with strong oxidation ability have a killing effect on viruses and bacteria and can decompose the toxins released by bacteria or fungi; thirdly, while the deep ultraviolet rays irradiate the photocatalyst for a photocatalytic reaction, ecological negative oxygen ions are released. The ecological negative oxygen ions have the functions of sterilization, purifying the air, and enhancing the body's resistance.

[0044] Specifically, the present invention organically combines the three technologies of UVC LED deep ultraviolet rays, photocatalyst, and ecological negative oxygen ions to form a combined effect, and kills viruses and bacteria from different angles and in different ways. The combined application of the photocatalyst technology and the deep ultraviolet technology increases the utilization efficiency of the deep ultraviolet rays. While the deep ultraviolet rays kill viruses and bacteria, they provide an irradiation light source for the photocatalyst material, eliminating the need for repeated setting of the irradiation light source and saving material costs; and while the deep ultraviolet rays irradiate the photocatalyst to kill viruses and bacteria, ecological negative oxygen ions are released to achieve sterilization, providing fresh air rich in ecological negative oxygen ions for the mask wearer, regulating the respiratory function, and enhancing the ability of the respiratory tract and the body to resist pathogenic microorganisms.

[0045] The UVC LED deep ultraviolet rays have been widely used in killing pathogenic microorganisms such as viruses and bacteria in water, air conditioners, etc. However, in terms of personal close protection of masks, due to the radiation of deep ultraviolet rays, there has been no precedent for application. The present invention combines the function of the UVC LED deep ultraviolet rays in killing viruses and bacteria with a protective mask, enabling the use of UVC LED deep ultraviolet rays in direct contact with the human body, effectively solving the problem of the harm of UVC LED deep ultraviolet ray radiation to humans, and creating an innovation in the technical application of UVC LED deep ultraviolet rays in the field of mask protection.

[0046] Due to the application of UVC LED deep ultraviolet sterilization in the present invention, it is rapid and efficient, and the killing rate of bacteria and viruses can reach 99% - 99.9% within one second, and the sterilization and virus elimination are rapid and reliable. Due to the broad-spectrum nature of UVC LED deep ultraviolet sterilization, among all current disinfection technologies, the deep ultraviolet technology has the highest broad-spectrum sterilization ability. The protective mask of the present invention can efficiently kill almost all bacteria and viruses.

[0047] The protective mask of the present invention uses a filter substrate at the ordinary medical mask level, which has good permeability and exceeds the performance of N95 masks in terms of protection, but has higher breathability and comfort than N95 masks.

[0048] The filter mesh of the protective mask of the present invention is replaceable, and the whole mask and the UVC LED deep ultraviolet sterilization and virus elimination part can be used repeatedly for a long time, saving the use cost, reducing the emission of pollutants, and saving resources.

[0049] The protective mask of the present invention also has an accessory function: removing the reflection cover at the front end will result in a small deep ultraviolet sterilization lamp, which can disinfect items such as elevator buttons, door handles, gloves, clothes, etc. It has a simple structure, diverse functions, is small and light, completely silent, and is easy to wear. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to the provided drawings.

[0051] Figure 1 The drawings are the overall structural schematic diagram of the protective mask of the present invention;

[0052] Figure 2 The drawings are the structural schematic diagram of the reflection cover of the present invention;

[0053] Figure 3 The drawings are the structural schematic diagram of the light-transmitting cover of the present invention;

[0054] Figure 4 The attached drawing is a schematic structural diagram of the filter mesh sheet of the present invention;

[0055] Figure 5 The attached drawing is a schematic structural diagram of the deep ultraviolet generating device of the present invention;

[0056] Figure 6 The attached drawing is a schematic structural diagram of the latex sealing ring of the present invention;

[0057] Figure 7 The attached drawing is a schematic structural diagram of the mask strap of the present invention;

[0058] Figure 8 The attached drawing is a working principle diagram of the protective mask of the present invention.

[0059] In the figure:

[0060] 1 is a reflector, 11 is a photocatalyst coating, 2 is a light-transmitting cover, 21 is a first air inlet, 22 is a first air outlet, 23 is an air inlet and outlet dividing frame, 3 is a substrate, 31 is a second air inlet, 32 is a second air outlet, 33 is an air guide frame, 4 is a latex sealing ring, 5 is a magnetic nail, 6 is an ear hook nail, 71 is a heat dissipation light guide cover, 72 is a lamp bead, 73 is a battery, 74 is a circuit board, 75 is a charging port, 76 is a switch, 77 is a power indicator light, 78 is a lamp bead base, 79 is a lamp bead substrate, 8 is a mask strap, 81 is a small hole, 9 is a filter mesh sheet, 91 is a mesh frame, 92 is a threaded hole, 93 is a screw. Detailed implementation manners

[0061] Next, the technical solutions in the embodiments of the present invention will be described clearly and completely. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0062] Referring to the attached Figure 1-6 , the embodiments of the present invention disclose a protective mask capable of killing pathogenic microorganisms, including:

[0063] A reflector 1, and a photocatalyst coating 11 is arranged on the inner side of the reflector 1;

[0064] A light-transmitting cover 2, the light-transmitting cover 2 is arranged on the inner side of the reflector 1, and the light-transmitting cover 2 is adapted to the curvature and shape of the reflector 1; the light-transmitting cover 2 is provided with a first air inlet 21 and a first air outlet 22;

[0065] Deep ultraviolet generating device, the deep ultraviolet generating device is located inside the light-transmitting cover 2; the deep ultraviolet generating device includes a substrate 3 and a deep ultraviolet integrated module, the deep ultraviolet integrated module is arranged on the substrate 3; the substrate 3 is provided with a second air inlet 31 and a second air outlet 32 corresponding to the first air outlet 22;

[0066] and a latex sealing ring 4, the latex sealing ring 4 is adapted to the outer edge of the substrate 3.

[0067] To further optimize the above technical solution, the reflector 1 and the light-transmitting cover 2 are connected by magnetic nails 5; the light-transmitting cover 2 is threadedly connected to the deep ultraviolet generating device, threaded holes 92 are provided on both the inner side of the light-transmitting cover 2 and the substrate 3, and screws 93 pass through the threaded holes 92 of the substrate 3 and the light-transmitting cover 2 in sequence to realize the fixed connection between the substrate 3 and the light-transmitting cover 2.

[0068] To further optimize the above technical solution, the photocatalyst coating 11 is a composite nanomaterial of titanium dioxide and nano silver, and the fineness of the photocatalyst coating 11 material is 5-10 nm.

[0069] To further optimize the above technical solution, the reflector 1 is a cone, and the reflector 1 is an engineering plastic with a metal or metal coating that cannot be penetrated by deep ultraviolet rays; more preferably, it is an aluminum alloy or an engineering plastic with an aluminized film or a copper film, etc.

[0070] To further optimize the above technical solution, the inner surface of the reflector 1 is rough and uneven.

[0071] To further optimize the above technical solution, a plurality of first air inlets 21 are provided, and the first air inlets 21 are of any shape, and it is appropriate to ensure smooth air intake.

[0072] To further optimize the above technical solution, an intake and exhaust partition frame 23 is arranged between the first air inlet 21 and the first air outlet 22.

[0073] To further optimize the above technical solution, the light-transmitting cover 2 is made of quartz glass, black glass, soda-lime-silica glass or soda-lime glass that can transmit deep ultraviolet rays, and more preferably, it is quartz glass that can transmit deep ultraviolet rays.

[0074] To further optimize the above technical solution, the light-transmitting cover 2 is connected with a plurality of ear-hanging nails 6.

[0075] To further optimize the above technical solution, the deep ultraviolet integrated module includes a heat dissipation light guide cover 71, a lamp bead 72, a battery 73 connected to the lamp bead 72 through a wire, a circuit board 74, a charging port 75, a switch 76 and a power indicator light 77, wherein the bottom of the heat dissipation light guide cover 71 is integrally integrated with the lamp bead base 78, the lamp bead 72 is fixed through a lamp bead substrate 79, and the lamp bead substrate 79 is fixed on the lamp bead base 78.

[0076] To further optimize the above technical solution, the lamp bead substrate 79 is double-sided copper-clad.

[0077] To further optimize the above technical solution, an air guide frame 33 is also provided on the substrate 3.

[0078] To further optimize the above technical solution, the light-transmitting cover 2 is provided with a plurality of ear-loop hanging studs 6, the ear-loop hanging studs 6 are matched with the mask straps 8, the mask straps 8 are double-forked latex ear-loops, and a plurality of small holes 81 adapted to the ear-loop hanging studs 6 are provided at the fork ends of the mask straps 8.

[0079] To further optimize the above technical solution, the second air inlet 31 is provided with a filtering structure composed of a filter mesh 9 and a mesh frame 91, the filter mesh 9 is fixedly installed on the mesh frame 91, the mesh frame 91 is snap-connected to the second air inlet 31, and the filter mesh structure is three-layer and replaceable.

[0080] To further optimize the above technical solution, the filter mesh 9 is made of medical filter non-woven fabric material.

[0081] To further optimize the above technical solution, the position covered by the photocatalyst coating 2 corresponds to the extension line of the heat dissipation light guide cover 71.

[0082] To further optimize the above technical solution, the wavelength of the lamp beads 72 is 260 - 270 nm, the deep ultraviolet output power is 1800 - 2000 mW, the light-emitting angle is between 120 - 140°, and a constant current drive mode is adopted.

[0083] To further optimize the above technical solution, the latex sealing ring 4 is a double-layer structure at the edge, with better sealing performance and more comfortable wearing.

[0084] Usage method of the mask

[0085] 1. Wearing method: The wearing method of the protective mask of the present invention is basically the same as that of a general medical mask. When wearing, according to the head circumference of the wearer, select the small holes provided at the fork ends of the rubber ear-loops and insert the ear-loop hanging studs.

[0086] 2. After putting on the mask, turn on the mask power switch. When the power indicator emits green light, it can be used normally; when the power indicator emits red light, it needs to be charged.

[0087] 3. If the battery runs out during use, this mask can still be worn as an ordinary medical protective mask.

[0088] 4. The filter mesh is generally replaced after being used 3 - 5 times.

[0089] Figure 7This is the working principle diagram of the protective mask of the present invention that can kill pathogenic microorganisms:

[0090] First, the air entering the mask passes through the UVC LED lamp beads 72 to emit deep ultraviolet rays. Under the condensing effect of the heat dissipation and light guide cover 71, the deep ultraviolet rays cover the entire first air inlet 21, and the virus and bacteria in the air entering through the first air inlet 21 are instantly killed by the deep ultraviolet rays with a wavelength of 265 nm. At the same time, the UVC LED lamp beads 72 emit deep ultraviolet rays, and through the light coverage area of the first air inlet 21 and the light transmission cover 2, they irradiate the photocatalyst coating 11 on the reflection cover 1. When the photocatalyst coating 11 receives the irradiation of deep ultraviolet rays, a photocatalytic reaction occurs. The generated hydroxyl radicals (·OH) remain on the surface of the photocatalyst film, and the highly reactive oxygen ions (·O2ˉ) are released into the air. This kind of oxygen anion (·O2ˉ) with strong oxidation ability can kill virus and bacteria and decompose the toxins released by bacteria or fungi. At the same time, the photocatalytic reaction releases ecological negative oxygen ions, which have the effects of sterilization, purifying the air, and enhancing the body's resistance. Secondly, a filter mesh meeting the medical mask standard is used to filter the air after sterilization and virus elimination to improve the safety protection of the mask. If the battery runs out during use, this mask can also be used as an ordinary medical protective mask.

[0091] In addition, if the mask wearer is a carrier of pathogenic microorganisms who has been infected with an infectious disease, the pathogenic microorganism-bearing gas exhaled by him enters the deep ultraviolet irradiation area and the photocatalyst sterilization area through the first exhaust port 22 and the second exhaust port 32, and the pathogenic microorganisms of the virus and bacteria are instantly killed. The pathogenic microorganisms exhaled by the patient can be instantly killed inside the mask he wears, avoiding polluting the surrounding air and infecting others.

[0092] The embodiment of the present invention discloses a protective mask that can kill pathogenic microorganisms, which can kill the virus and bacteria of pathogenic microorganisms at the front end of the mask before entering the human oral cavity and nasal cavity. The present invention applies the UVC LED deep ultraviolet technology, photocatalyst sterilization technology, and ecological negative oxygen ion technology with strong ability to kill virus and bacteria and other pathogenic microorganisms to conventional medical protective masks, so that medical masks not only have the functions of isolating and filtering pathogenic microorganisms, but also have the function of instantly killing pathogenic microorganisms entering the mask from the external space, improving the protection effect of the mask. In addition, if the mask wearer is a carrier of pathogenic microorganisms who has been infected with an infectious disease, the pathogenic microorganisms exhaled by the patient can be instantly killed inside the mask he wears, avoiding polluting the surrounding air and infecting others;

[0093] The protective mask of the present invention also has the functions of eliminating formaldehyde, purifying the air, providing the wearer with a continuous supply of fresh air rich in negative oxygen ions, protecting the wearer from being infected by pathogenic microorganisms, and protecting the wearer from being invaded by polluted air such as formaldehyde, haze, pollen, and odor, thus ensuring the physical health of the wearer.

[0094] The various embodiments in this specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. For the same or similar parts among the embodiments, reference can be made to each other. For the devices disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple. For related parts, reference can be made to the description in the method section.

[0095] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A protective mask capable of killing pathogenic microorganisms, characterized in that, Comprising: A reflector (1), on the inner side of which a photocatalyst coating (11) is provided; The reflector (1) is a cone, and the reflector (1) is made of metal or metal-plated engineering plastic that cannot be penetrated by deep ultraviolet rays; A light-transmitting cover (2), which is arranged on the inner side of the reflector (1), and the light-transmitting cover (2) is adapted to the radian and shape of the reflector (1); the light-transmitting cover (2) is provided with a first air inlet (21) and a first air outlet (22); An intake and exhaust partition frame (23) is arranged between the first air inlet (21) and the first air outlet (22); The light-transmitting cover (2) is made of quartz glass, black glass, soda-lime-silica glass or soda-lime glass that can transmit deep ultraviolet rays; A deep ultraviolet generating device, which is located on the inner side of the light-transmitting cover (2); the deep ultraviolet generating device includes a substrate (3) and a deep ultraviolet integrated module, and the deep ultraviolet integrated module is arranged on the substrate (3); the substrate (3) is provided with a second air inlet (31) and a second air outlet (32) corresponding to the first air outlet (22); The second air inlet (31) is provided with a filtering structure composed of a filter mesh (9) and a mesh frame (91), the filter mesh (9) is fixedly installed on the mesh frame (91), and the mesh frame (91) is snap-connected to the second air inlet (31); The deep ultraviolet integrated module includes a heat dissipation and light guide cover (71), lamp beads (72), a battery (73) connected to the lamp beads (72) through wires, a circuit board (74), a charging port (75), a switch (76) and a power indicator (77), wherein the bottom of the heat dissipation and light guide cover (71) is integrally integrated with a lamp bead base (78), the lamp beads (72) are fixed by a lamp bead substrate (79), and the lamp bead substrate (79) is fixed on the lamp bead base (78); The position covered by the extension line of the photocatalyst coating (11) corresponds to that of the heat dissipation and light guide cover (71); And a latex sealing ring (4), which is adapted to the outer edge of the substrate (3).

2. The protective mask capable of killing pathogenic microorganisms according to claim 1, characterized in that, The photocatalyst coating (11) is a composite nanomaterial of titanium dioxide and nano silver, and the fineness of the material of the photocatalyst coating (11) is 5 - 10 nm.

3. The protective mask capable of killing pathogenic microorganisms according to claim 1, characterized in that, The inner surface of the reflector (1) is rough and uneven.

4. The protective mask capable of killing pathogenic microorganisms according to claim 1, characterized in that, The wavelength of the lamp beads (72) is 260 - 270 nm, the deep ultraviolet output power is 1800 - 2000 mW, the light-emitting angle is between 120 - 140°, and a constant current driving mode is adopted.

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