Sterilizing device

Abstract

The invention discloses a disinfection device. The disinfection device comprises a box body, 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 the box body by wind to disinfect objects to be disinfected, so that the organic matters, the bacteria and the viruses on the surfaces of the objects to be disinfected are decomposed into CO2 and water. According to the disinfection device disclosed by the invention, through the effects of photocatalysis and ultraviolet rays, the killing rate of viruses and bacteria on the surfaces of various articles can be up to 99.9% efficiently, and the disinfection device has an excellent disinfection effect.

Description

Technical Field

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

[0002] Existing disinfection devices adopt various disinfection methods, 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] 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 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 disinfection device.

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

[0011] A disinfection device, comprising:

[0012] A box body, having a front door and a rear wall, and an upper air outlet and a lower air inlet are provided on the rear wall;

[0013] An air supply duct is installed outside the rear wall. The air supply duct has an air inlet and an air outlet, and the air outlet is communicated with the lower air inlet.

[0014] A blower fan is installed at the air inlet to blow air into the air supply duct.

[0015] A constant temperature heating module is installed in the air supply duct.

[0016] TiO 2 module;

[0017] An ultraviolet module is fitted in the TiO 2 module;

[0018] The TiO 2 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.

[0019] Wherein, the outside air enters the air supply duct from the air inlet under the action of the blower fan, passes through the constant temperature heating module and the TiO 2 module in sequence, is discharged from the air supply duct through the air outlet, enters the box body through the lower air inlet, flows from bottom to top in the box body, and is finally discharged through the upper exhaust port.

[0020] Preferably, the TiO 2 module includes a bottom plate and a plurality of wing plates uniformly 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.

[0021] 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.

[0022] Preferably, the area ratio of the lower air inlet to the upper exhaust port is 1:0.66.

[0023] Preferably, it further includes:

[0024] An exhaust fan is installed at the upper exhaust port to extract the air in the box body to the outside of the box body.

[0025] Preferably, it further includes:

[0026] A rear cover covers the outside of the rear wall and covers the exhaust fan, the blower fan and the air supply duct. A filter screen is arranged on the rear cover, and the filter screen corresponds to the positions of the exhaust fan and the blower fan, and silver ions are added to the filter screen.

[0027] Preferably, the air supply duct includes:

[0028] An upper cover of the air duct;

[0029] A lower cover of the air duct, which is installed on the rear wall and is detachably connected to the upper cover of the air duct.

[0030] Preferably, the number of the wing plates is 7, 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.

[0031] Preferably, it further includes:

[0032] A magnetic strip, which is arranged at a position on the main body of the box body where the front door is connected for opening and closing.

[0033] Preferably, it further includes:

[0034] An intelligent control device, which controls the disinfection device to switch among an automatic mode, a disinfection mode, a drying mode and a storage mode;

[0035] Six working times of 30 minutes, 35 minutes, 40 minutes, 45 minutes, 50 minutes and 60 minutes are preset for the disinfection mode.

[0036] Preferably, a plurality of storage racks are arranged in the box body at intervals from top to bottom.

[0037] On the basis of conforming to the common knowledge in the art, the above preferred conditions can be combined arbitrarily to obtain various preferred examples of the present invention.

[0038] The positive and progressive effects of the present invention are as follows: The disinfection device of the present invention includes a box body, an air duct, a blower fan, a constant temperature heating module, a TiO 2 module and an ultraviolet module. After the disinfection function is activated by power-on, the ultraviolet lamps of the ultraviolet module are always on, and the TiO 2 module is irradiated to generate h 2 and e + electrons on the surface of the bottom plate and wing plates of TiO - . The h 2 electrons on the surface of TiO + react with water molecules in the air supply duct to form OH free radicals, and the e - electrons react with oxygen molecules in the air supply 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 in by the blower fan into CO 2 and water in the air supply duct, and part of the 0 2-Free radicals are blown into the sterilized items in the box to sterilize them, decomposing the organic matter, bacteria and viruses on the surface of the sterilized items into CO 2 and water. Through the action of photocatalysis and ultraviolet rays, the sterilization device of the present invention can efficiently achieve a sterilization rate of 99.9% for viruses and bacteria on the surfaces of various items, having excellent sterilization effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 It is a schematic diagram of the partial disassembled structure of the sterilization device according to the preferred embodiment of the present invention.

[0040] Figure 2 It is a schematic diagram of the internal structure of the box after the front door of the sterilization device according to the preferred embodiment of the present invention is opened.

[0041] Figure 3 It is a schematic diagram of the partial structure according to the preferred embodiment of the present invention.

[0042] Figure 4 It is a schematic diagram of the structure of the air supply duct according to the preferred embodiment of the present invention.

[0043] Figure 5 TiO 2 module structure diagram.

[0044] Figure 6 It is a schematic diagram of the structure of the ultraviolet module according to the preferred embodiment of the present invention.

[0045] Figure 7 TiO 2 module and ultraviolet module after assembly structure diagram.

[0046] Description of the reference numerals:

[0047] Box body 100

[0048] Front door 101

[0049] Rear wall 102

[0050] Upper air outlet 103

[0051] Lower air inlet 104

[0052] Exhaust fan 200

[0053] Air supply duct 1

[0054] Air inlet 11

[0055] Air outlet 12

[0056] Air duct lower cover 13

[0057] Air duct upper cover 14

[0058] Drum fan 2

[0059] Constant temperature heating module 3

[0060] TiO 2 Module 4

[0061] Base plate 41

[0062] Wing plate 42

[0063] Lamp hole 43

[0064] Ultraviolet module 5

[0065] Substrate 51

[0066] Ultraviolet lamp 52

[0067] Rear cover 6

[0068] Filter net 7

[0069] Storage rack 8

[0070] Magnetic strip 9 Detailed implementation manners

[0071] 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 of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and in no way restrictive of the present invention and its application or use. Based on the embodiments of 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.

[0072] For the sake of description, spatial relative terms such as "above...", "over...", "on the upper surface of...", "above" and the like can be used here to describe the spatial position relationship of one device or feature with respect to other devices or features as shown in the figures. It should be understood that the spatial relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is inverted, the device described as "above other devices or structures" or "over other devices or structures" will then be positioned "below other devices or structures" or "under other devices or structures". Thus, the exemplary term "above..." can include both the orientation of "above..." and "below...". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and corresponding explanations can be made for the spatial relative descriptions used here.

[0073] 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 apparatus comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or apparatus. 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 apparatus comprising the element.

[0074] As Figures 1-7 shown, this embodiment discloses a device which includes a box body 100, an exhaust fan 200, a ventilation duct 1, a blower fan 2, a constant temperature heating module 3, a TiO 2 module 4 and an ultraviolet module 5.

[0075] The box body 100 has a front door 101 and a rear wall 102 which are oppositely arranged. An upper exhaust vent 103 and a lower air inlet 104 are formed on the rear wall. A magnetic strip 9 is also arranged at the opening and closing connection of the front door 101 and the main body of the box body, which can adsorb the front door 101 when the front door 101 is closed, thereby enhancing the sealing performance. In this embodiment, the box body 100 is integrally rectangular, but in other alternative embodiments, it may also be of other shapes.

[0076] Moreover, a plurality of storage racks 8 are arranged in the box body 100 at intervals from top to bottom in sequence, so that more items can be placed for disinfection. In this embodiment, the storage rack 8 has 4 layers, but it is not limited thereto.

[0077] The exhaust fan 200 is installed at the upper exhaust vent 103 to extract the air in the box body 100 to the outside of the box body 100. In this embodiment, setting the exhaust fan 200 can accelerate the air exchange in the box. The ventilation duct 1 is installed outside the rear wall 102. The ventilation duct 1 has an air inlet 11 and an air outlet 12, and the air outlet 12 is communicated with the lower air inlet 104 of the box body 100. In this embodiment, the ventilation duct 1 specifically includes an upper duct cover 14 and a lower duct cover 13 which is detachably connected to the upper duct cover 14. The lower duct cover 13 is installed on the rear wall 102, so that it is convenient to install the constant temperature heating module 3, TiO 2 module 4 and the ultraviolet module 5. But it is not limited thereto. In other alternative embodiments, the ventilation duct 1 may also be integrated.

[0078] The air volume of the blower fan 2 is 20 cfm (cubic feet per minute), and it is installed at the air inlet 11 to blow air into the ventilation duct 1.

[0079] The constant temperature heating module 3 is installed in the air supply duct 1. In this embodiment, the PTC heating module, also known as the PTC heater, is composed of a PTC ceramic heating element and an aluminum tube. PTC stands for positive temperature coefficient. This type of PTC heating element has the advantages of low thermal resistance and high heat transfer efficiency. It is an automatic constant temperature and power-saving electric heater. Its outstanding feature lies in its safety performance. Under any application conditions, 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 heating, automatic temperature control in case of fan failure, long service life, wide voltage range, which can be designed according to needs between 12V - 380V, and convenient design, which 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.

[0080] The ultraviolet module 5 of this embodiment uses a UVA module. The classifications of ultraviolet rays are UVA, UVB, UVC, and UVD. The wavelength of the UVA band is 320 - 420nm. The UVA module fits in the TiO 2 module 4. Specifically, the TiO 2 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 opened on the bottom plate 41 between every two adjacent wing plates 42, and an installation groove is opened below the bottom plate 41.

[0081] The ultraviolet module 5 includes a substrate 51 and a plurality of ultraviolet lamps 52 corresponding to the positions of the lamp holes 43 arranged on the substrate 51. The substrate 51 is embedded in the installation groove, and the ultraviolet lamps 52 are positioned in the lamp holes 43 and do not protrude from the bottom plate 41.

[0082] In this embodiment, 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 opened on the bottom plate 41 between every two adjacent wing plates 42.

[0083] 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 - .

[0084] 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 position of the air outlet 12.

[0085] Furthermore, the disinfection device further includes a rear cover 6, which is covered on the outer side of the rear wall 102 and can cover the exhaust fan 200, the blower fan 2, and the air supply duct 1. A filter screen 7 is provided on the rear cover 6. The filter screen 7 corresponds to the positions of the exhaust fan 200 and the blower fan 2, and can prevent sundries from entering the air supply duct 1 through the blower fan 2. And silver ions are added to the filter screen 7 to prevent bacteria and other microorganisms from growing on the filter screen 7.

[0086] After the disinfection device of this embodiment is powered on to activate the disinfection function, the ultraviolet lamp 52 of the ultraviolet module 5 is always on, irradiating TiO 2 module 4 to cause h 2 and e + electrons to be generated on the surfaces of the bottom plate 41 and the wing plate 42 of TiO - . 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 - electrons react with oxygen molecules in the air supply duct 1 to form O 2- free radicals. OH free radicals and some O 2- free radicals decompose organic substances, 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- free radicals are blown into the articles to be disinfected in the box body 100 by the wind to disinfect, and decompose the organic substances, bacteria and viruses on the surface of the articles into CO 2 and water.

[0087] In this embodiment, the outside air enters the air supply duct 1 from the air inlet 11 under the action of the blower fan 2, passes through the constant temperature heating module 3 and the TiO 2 module 4 in sequence, is discharged from the air outlet 12 of the air supply duct 1, and enters the box body 100 through the lower air inlet 104. Under the action of the exhaust fan 200, it flows from bottom to top in the box body 100 and is finally discharged through the exhaust outlet 103.

[0088] In this embodiment, the area of the lower air inlet 104 is 0.00156 square meters, and the area of the upper exhaust outlet is 0.00103 square meters, that is, the area ratio of the lower air inlet 104 to the upper exhaust outlet 103 is 1:0.66, so that a certain pressure can be formed in the box body 100, and the time for O 2- free radicals to decompose bacteria, viruses and organic substances in the box body 100 can be extended, and a better sterilization effect can be achieved.

[0089] The disinfection device of this embodiment includes an intelligent control device, which can control the disinfection device to switch among the automatic mode, the sterilizer mode, the drying mode, and the storage mode. The sterilizer mode presets six working times of 30 minutes, 35 minutes, 40 minutes, 45 minutes, 50 minutes, and 60 minutes, so as to facilitate users to quickly select the required working mode and disinfection time according to their needs.

[0090] In the automatic mode, the TiO 2 module + ultraviolet module + constant temperature heating module + drum fan work simultaneously for 40 minutes, and the bactericidal rate of bacteria on the items in the box reaches 99.9%, and the static bactericidal activity value of the virus ≥ 2.0.

[0091] In the sterilizer mode, 30 / 35 / 40 / 45 / 50 / 60 minutes are provided for selection. After the disinfection time is selected, the TiO 2 module + ultraviolet module + drum fan work simultaneously for the selected duration, and the constant temperature heating module shuts down after running for 15 minutes. The bactericidal rate of bacteria on the disinfected items in the box reaches 99.9%, and the static bactericidal activity value of the virus ≥ 2.0.

[0092] The disinfection device of this embodiment can efficiently kill 99.9% of viruses and bacteria on the surfaces of various items through the action of photocatalysis and ultraviolet rays, and has excellent disinfection effect.

Claims

1. A disinfection device, characterized in that: include: The box body has a front door and a rear wall, and the rear wall is provided with an upper air outlet and a lower air inlet; An air supply duct is installed on the outer side of the rear wall, the air supply duct has an air inlet and an air outlet, and the air outlet is connected to the lower air inlet; 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 UV module are installed together in the air supply duct, downstream of the constant temperature heating module, and close to the air outlet; Among them, the outside air enters the air supply duct from the air inlet under the action of the blower fan, passes through the constant temperature heating module and the TiO2 module in sequence, is discharged from the air supply duct through the air outlet, enters the box through the lower air inlet, flows from bottom to top in the box, and is finally discharged through the upper exhaust port.

2. The disinfection device 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 disinfection device according to claim 1, characterized in that: The area ratio of the lower air inlet and the upper air outlet is 1:0.

66.

4. The disinfection device according to claim 1, characterized in that: Also includes: An exhaust fan is installed at the upper air outlet to draw the air in the box out of the box.

5. The disinfection device according to claim 4, characterized in that: Also includes: The rear cover is covered on the outer side of the rear wall and covers the exhaust fan, the blower fan and the air supply duct. The rear cover is provided with a filter, which corresponds to the positions of the exhaust fan and the blower fan, and silver ions are added to the filter.

6. The disinfection device according to claim 1, characterized in that: The air supply duct comprises: Air duct cover; The air duct lower cover is installed on the rear wall and is detachably connected to the air duct upper cover.

7. The disinfection device according to claim 2, characterized in that: The number of the wing plates is 7, 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 disinfection device according to claim 1, characterized in that: Also includes: A magnetic strip is arranged on the main body of the box body at a position connected to the opening and closing of the front door.

9. The disinfection device according to claim 1, characterized in that: Also includes: An intelligent control device controls the sterilizing device to switch among an automatic mode, a sterilizer mode, a drying mode and a storage mode; The sterilizer mode has six preset working times: 30 minutes, 35 minutes, 40 minutes, 45 minutes, 50 minutes and 60 minutes.

10. The disinfection device according to claim 1, characterized in that: The box body is provided with a plurality of storage racks which are arranged in sequence from top to bottom.

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