Virus killing and sterilizing module and sterilizing device

Abstract

The invention discloses a virus killing and sterilizing module and a sterilizing device. The virus killing and sterilizing module comprises an air supply pipeline, a blowing fan, a constant-temperature heating module, a TiO2 module and an ultraviolet module. After the disinfection function is activated by electrifying, an ultraviolet lamp of the ultraviolet module is lightened for a long time to irradiate the TiO2 module, so that h < + > and e <-> electrons are generated on the surfaces of the bottom plate and the wing plate of TiO2. H + electrons on the surface of TiO2 react with water molecules in the air supply pipeline to form OH free radicals, and e-electrons react with oxygen molecules in the air supply pipeline to form O2-free radicals. The OH free radicals and a part of O2-free radicals decompose organic matters, bacteria, viruses and the like in air blown by the blowing fan into CO2 and water in the air supply pipeline, and a part of O2-free radicals are blown into a disinfected object by wind, so that the organic matters, the bacteria and the viruses on the surface of the disinfected object are decomposed into CO2 and water. According to the virus-killing and sterilizing module and the sterilizing device, through the effects of photocatalysis and ultraviolet rays, the killing rate of viruses and bacteria on the surfaces of various objects can reach 99.9% efficiently, and the effect of purifying air is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of disinfection, and particularly to a virus and bacteria killing module and a disinfection device. Background Art

[0002] The disinfection methods adopted by the virus and bacteria killing modules in existing disinfection devices are various, such as high-temperature disinfection, ozone disinfection, ultraviolet disinfection, chemical disinfection, etc.

[0003] High-temperature disinfection generally uses methods such as steam or hot air, which can effectively kill bacteria, viruses and other microorganisms. Its main advantages are simple operation, high efficiency and speed, and it is applicable to most scenarios. However, for some sensitive items or equipment, high-temperature disinfection may cause damage or deformation.

[0004] Ozone disinfection kills bacteria and viruses through the oxidation of ozone gas. It has the characteristics of high efficiency and broad-spectrum sterilization, and can treat various media such as air and water. However, ozone gas has certain irritation and corrosiveness to the human body and some substances.

[0005] Ultraviolet disinfection kills microorganisms through ultraviolet radiation. It has the advantages of high efficiency, no chemical residue and no secondary pollution, and is applicable to the disinfection of air and water. However, the sterilization effect of ultraviolet disinfection is affected by factors such as light intensity, radiation time and distance, and it cannot treat hidden or blocked areas.

[0006] Chemical disinfection usually uses chemical substances such as bleaching powder, alcohol, hydrogen peroxide, etc. to carry out sterilization. It has a broad-spectrum sterilization effect and is applicable to various surfaces and equipment. However, some chemical disinfectants may be harmful to the human body.

[0007] The existing disinfection methods each have their own disadvantages and cannot simply and efficiently meet the disinfection needs of consumers for a variety of items, especially baby products.

[0008] Therefore, it can be seen that whether it is possible to provide an improved virus and bacteria killing module and disinfection device based on the deficiencies in the existing technology has become a technical problem that needs to be urgently solved by those skilled in the art. Summary of the Invention

[0009] The technical problem to be solved by the present invention is to overcome the defects in the existing technology and provide a virus and bacteria killing module and a disinfection device.

[0010] The present invention solves the above technical problem through the following technical solutions:

[0011] A virus and bacteria killing module, comprising:

[0012] An air supply duct having an air inlet and an air outlet;

[0013] A drum fan installed at the air inlet to blow air into the air supply duct;

[0014] A constant temperature heating module installed in the air supply duct;

[0015] A TiO2 module;

[0016] An ultraviolet module fitted in the TiO2 module;

[0017] The TiO2 module and the ultraviolet module are jointly installed downstream of the constant temperature heating module in the air supply duct and close to the air outlet.

[0018] Preferably, the TiO2 module includes a bottom plate and a plurality of wing plates evenly spaced above the bottom plate. Lamp holes are formed in the bottom plate between every two adjacent wing plates, and an installation groove is formed below the bottom plate;

[0019] The ultraviolet module includes a substrate and a plurality of ultraviolet lamps arranged on the substrate corresponding to the positions of the lamp holes. The substrate is embedded in the installation groove, and the ultraviolet lamps are located in the lamp holes and do not protrude from the bottom plate.

[0020] Preferably, it further includes:

[0021] A filter screen covering the drum fan.

[0022] Preferably, silver ions are added to the filter screen.

[0023] Preferably, the air supply duct includes:

[0024] An air duct upper cover;

[0025] An air duct lower cover detachably connected to the air duct upper cover.

[0026] Preferably, the number of the wing plates is 7.

[0027] Preferably, the number of the lamp holes and the ultraviolet lamps is 12, and 2 lamp holes are formed in the bottom plate between every two adjacent wing plates.

[0028] Preferably, the air volume of the drum fan is 20 cfm.

[0029] Preferably, the specification of the constant temperature heating module is 100 °C / 250 W, and it is used to continuously provide hot air at 65 ± 5 °C.

[0030] A disinfection device, which particularly includes the above virus-killing and bactericidal module.

[0031] On the basis of conforming to the common knowledge in the art, the above preferred conditions can be combined arbitrarily to obtain various preferred embodiments of the present invention.

[0032] The positive and progressive effects of the present invention are as follows: The virus-killing and bactericidal module of the present invention includes a ventilation duct, a blower fan, a constant-temperature heating module, a TiO 2 module and an ultraviolet module. After the virus-killing and bactericidal module is powered on to activate the disinfection function, the ultraviolet lamp of the ultraviolet module lights up continuously, irradiating the TiO 2 module to generate h 2 and e + electrons on the surfaces of the bottom plate and wing plate of TiO - . The h 2 electrons on the surface of TiO + react with water molecules in the ventilation duct to form OH free radicals, and the e - electrons react with oxygen molecules in the ventilation duct to form O 2- free radicals. The OH free radicals and part of the O 2- free radicals decompose organic substances, bacteria, viruses, etc. in the air blown into by the blower fan in the ventilation duct into CO 2 and water. Part of the 0 2- free radicals are blown by the wind onto the articles to be disinfected, and the organic substances, bacteria and viruses on the surfaces of the articles to be disinfected are decomposed into CO 2 and water. The virus-killing and bactericidal module and the disinfection device of the present invention can, through the action of photocatalysis and ultraviolet rays, not only efficiently achieve a virus and bacteria killing rate of 99.9% on the surfaces of various articles, but also have the effect of purifying the air. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 is a schematic structural diagram of the virus-killing and bactericidal module of the preferred embodiment of the present invention with the upper cover of the air duct hidden.

[0034] Figure 2 is a schematic structural diagram of the ventilation duct of the preferred embodiment of the present invention.

[0035] Figure 3 is a schematic structural diagram of the TiO 2 module of the preferred embodiment of the present invention.

[0036] Figure 4 is a schematic structural diagram of the ultraviolet module of the preferred embodiment of the present invention.

[0037] Figure 5 is a schematic structural diagram of the assembled TiO 2 module and ultraviolet module of the preferred embodiment of the present invention.

[0038] DESCRIPTION OF THE REFERENCE NUMERALS:

[0039] Ventilation duct 1

[0040] Air inlet 11

[0041] Air outlet 12

[0042] Lower cover of air duct 13

[0043] Upper cover of air duct 14

[0044] Blower fan 2

[0045] Constant temperature heating module 3

[0046] TiO 2 Module 4

[0047] Bottom plate 41

[0048] Wing plate 42

[0049] Lamp hole 43

[0050] Ultraviolet module 5

[0051] Substrate 51

[0052] Ultraviolet lamp 52 Specific implementation mode

[0053] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and in no way limits the present invention and its application or use. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0054] For the sake of convenience of description, spatial relative terms such as "above...", "over...", "on the upper surface of...", "above" etc. can be used here to describe the spatial position relationship between a device or feature shown in the figure and other devices or features. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation of the device described in the figure. For example, if the device in the figure is inverted, the device described as "above other devices or structures" or "over other devices or structures" will be positioned "below other devices or structures" or "under other devices or structures" afterwards. Thus, the exemplary term "above..." can include both the orientations of "above..." and "below...". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and corresponding explanations will be made for the spatial relative descriptions used here.

[0055] It should be noted that in the claims and the specification of this patent, the terms "comprising", "including" or any other variants thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising one" does not exclude the presence of additional identical elements in the process, method, article or device comprising the element.

[0056] As Figures 1 - 5 shown, this embodiment discloses a virus-killing and sterilizing module, which includes an air supply duct 1, a blower fan 2, a constant temperature heating module 3, a TiO 2 module 4 and an ultraviolet module 5.

[0057] The air supply duct 1 has an air inlet 11 and an air outlet 12. In this embodiment, the air supply duct 1 specifically includes an air duct upper cover 14 and an air duct lower cover 13 detachably installed on the air duct upper cover 14, so as to facilitate the installation of the constant temperature heating module 3, the TiO 2 module 4 and the ultraviolet module 5. However, it is not limited thereto. In other alternative embodiments, the air supply duct 1 may also be integral.

[0058] The air volume of the blower fan 2 is 20 cfm (cubic feet per minute) to provide sufficient air volume for the disinfection module and ensure that the h 2 generated by the TiO + and e - electrons can be quickly blown to the articles to be disinfected. It is installed at the air inlet 11 to blow air into the air supply duct 1.

[0059] The constant temperature heating module 3 is installed in the air supply duct 1. The constant temperature heating module 3 is a PTC heating module, also called a PTC heater. PTC (positive temperature coefficient), which is composed of a PTC ceramic heating element and an aluminum tube. This type of PTC heating element has the advantages of small thermal resistance and high heat exchange efficiency, and is an automatic constant temperature and power-saving electric heater. Its outstanding feature lies in its safety performance. In any application case, it will not produce the surface "reddening" phenomenon of heaters such as electric heating tubes, thus causing safety hazards such as scalding and fire. It also has the advantages of rapid temperature rise, automatic temperature control in case of fan failure, long service life, wide voltage usage range, and can be designed according to needs between 12V - 380V, and can be designed arbitrarily from small power to large power. In this embodiment, the specification of the constant temperature heating module 3 is 100°C / 250W, which is used to continuously provide hot air at 65 ± 5°C. The air at this temperature can further improve the disinfection effect.

[0060] In this embodiment, the ultraviolet module 5 adopts a UVA module. The classifications of ultraviolet rays are UVA, UVB, UVC, and UVD. The wavelength of the UVA band is 320 - 420 nm. The UVA module fits into the 2 TiO 2 module 4. Specifically, the TiO

[0061] module 4 includes a bottom plate 41 and a plurality of wing plates 42 evenly spaced above the bottom plate 41. Lamp holes 43 are formed in the bottom plate 41 between every two adjacent wing plates 42, and an installation groove is formed below the bottom plate 41.

[0062] The number of wing plates 42 is 7, and the number of lamp holes 43 and the ultraviolet lamps 52 is 12, that is, 2 lamp holes 43 are formed in the bottom plate 41 between every two adjacent wing plates 42.

[0063] In this embodiment, adopting the above structural form can improve the efficiency of the catalytic reaction, enabling the TiO 2 module 4 to simultaneously and rapidly generate h 2 and e + electrons on the surfaces of the bottom plate 41 and the wing plates 42 of TiO - electrons.

[0064] TiO 2 module 4 and the ultraviolet module 5 are jointly installed downstream of the constant temperature heating module 3 in the air supply duct 1 and close to the air outlet 12.

[0065] Furthermore, the virus - killing and sterilizing module further includes a filter screen covering the blower fan 2, which can prevent sundries from entering the air supply duct 1 through the blower fan 2. And silver ions are added to the filter screen to prevent the growth of bacteria and other microorganisms on the filter screen.

[0066] This embodiment also discloses a disinfection device using the above - mentioned virus - killing and sterilizing module.

[0067] After the virus - killing and sterilizing module of this embodiment is powered on to activate the disinfection function, the ultraviolet lamps 52 of the ultraviolet module 5 remain on, irradiating the TiO 2 module 4 to generate h 2 and e + electrons on the surfaces of the bottom plate 41 and the wing plates 42 of TiO - electrons. The h 2 electrons on the surface of TiO + react with water molecules in the air supply duct 1 to form OH free radicals, and e -The electrons react with the oxygen molecules in the air supply duct 1 to form O 2- radicals. The OH radicals and some O 2- radicals decompose the organic matter, bacteria, viruses, etc. in the air blown into by the blower fan 2 in the air supply duct 1 into CO 2 and water. Some 0 2- radicals are blown by the wind onto the articles to be disinfected, decomposing the organic matter, bacteria and viruses on the surface of the articles to be disinfected into CO 2 and water. The virus-killing and bactericidal module and the disinfection device of this embodiment can, through the action of photocatalysis and ultraviolet rays, not only efficiently achieve a virus and bacteria killing rate of 99.9% on the surfaces of various articles, but also have the effect of purifying the air.

Claims

1. A virus-killing and sterilization module, characterized in that: include: An air supply duct having an air inlet and an air outlet; A blower fan, installed at the air inlet to blow air into the air supply duct; A constant temperature heating module is installed in the air supply duct; TiO2 module; A UV module, which is fitted into the TiO2 module; The TiO2 module and the ultraviolet module are installed together in the air supply duct, downstream of the constant temperature heating module, and close to the air outlet.

2. The virus-killing and sterilization module according to claim 1, characterized in that: The TiO2 module comprises a bottom plate and a plurality of wing plates evenly spaced above the bottom plate, a lamp hole is provided on the bottom plate between every two adjacent wing plates, and a mounting groove is provided below the bottom plate; The ultraviolet module comprises a substrate and a plurality of ultraviolet lamps arranged on the substrate and corresponding to the positions of the lamp holes. The substrate is embedded in the mounting groove, and the ultraviolet lamps are located in the lamp holes and are not exposed from the bottom plate.

3. The virus-killing and sterilization module according to claim 1, characterized in that: Also includes: The filter screen is covered on the blower fan.

4. The virus-killing and sterilization module according to claim 3, characterized in that: Silver ions are added into the filter screen.

5. The virus-killing and sterilization module according to claim 1, characterized in that: The air supply duct comprises: Air duct cover; The air duct lower cover is detachably connected to the air duct upper cover.

6. The virus-killing and sterilization module according to claim 2, characterized in that: The number of the wing panels is 7.

7. The virus-killing and sterilization module according to claim 6, characterized in that: The number of the lamp holes and the ultraviolet lamps is 12, and two lamp holes are provided on the bottom plate between every two adjacent wing plates. 。 8. The virus-killing and sterilization module according to claim 1, characterized in that: The air volume of the blower fan is 20 cfm.

9. The virus-killing and sterilization module according to claim 1, characterized in that: The specification of the constant temperature heating module is 100°C / 250W, and is used to continuously provide hot air at 65±5°C.

10. A disinfection device, characterized in that: It comprises a virus-killing and sterilization module as described in any one of claims 1 to 9.

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