TWM641661U - Vehicle disinfection and sterilization air purifier - Google Patents

Abstract

This invention creates a sterilization and disinfection air purifier for vehicles. In the reaction space of its housing, an ultraviolet light source circuit board is electrically connected to a power supply to provide UVC ultraviolet light sterilization and disinfection and UVA ultraviolet light source irradiation. Titanium dioxide film layer photocatalyst, in order to produce photocatalyst catalytic reaction, this creative car sterilization and disinfection air purifier is combined with the vehicle air conditioning system to sterilize and sterilize the polluted air input into the reaction space from the vehicle air conditioning inlet, and combined with a negative ion generator In the reaction space, an electrostatic reaction is generated to absorb tiny particles and dust that pollute the air, reduce dust and purify the air, quickly eliminate odors, and have instant and high-efficiency sterilization and disinfection effects.

Description

Vehicle sterilization and disinfection air purifier

This creation involves the technology of purifying air, especially the air purifying device including ultraviolet irradiation photocatalyst-driven photocatalytic reaction technology for sterilization, disinfection and cleaning.

General air-conditioning equipment has a limited effect on air purification, or has no effect on air purification at all, especially the air-conditioning equipment of vehicles, which is limited by the narrow installation space, and its air purification is not ideal. Breathing dirty air in a confined space is not conducive to health. Even if the vehicle air-conditioning system inhales gas from the outside, the polluted gas is often full of bacteria and viruses, which can damage the human respiratory organs in the small space in the car; another ultraviolet UV purification Air, due to the different wavelengths of ultraviolet rays, its sterilization and disinfection effects are also different, so it needs to complement each other, and the catalytic reaction of photocatalyst must be further designed and improved to supplement the imperfect effects of ultraviolet sterilization and disinfection. question.

This creation provides a vehicle sterilizing and disinfecting air purifier, which is combined with the vehicle air conditioning system to sterilize the polluted air, disinfect and remove air pollutants, so as to improve the air quality in the car.

The sterilizing and disinfecting air cleaner for vehicles can also be combined with various air-conditioning systems to sterilize polluted air, disinfect and remove air pollutants, and improve indoor or space air, for example. Gas quality purification device.

In some embodiments of the present invention, a sterilizing and disinfecting air cleaner for vehicles includes a sterilizing device, the sterilizing device includes an ultraviolet light source circuit board, a reaction plate with a photocatalyst film layer on the surface, the ultraviolet light source circuit board includes a UV ultraviolet light source, The UV ultraviolet light source further includes a UVA ultraviolet light source; a lower shell and an upper shell, and the lower shell includes a first air hole formed on one side of the lower shell, an opening formed on the other side of the lower shell and the inside of the opening. The inner space of the lower shell defines a reaction space, and the upper shell includes a second air hole formed on one side of the upper shell, wherein the sterilizing device is combined in the reaction space of the lower shell, and the ultraviolet light source circuit board and the surface have a photocatalyst The reaction plates of the film layer are arranged in the reaction space parallel to each other at intervals; the UVA ultraviolet light source of the UV ultraviolet light source is arranged on one side of the ultraviolet light source circuit board and faces the reaction plate with the photocatalyst film layer on the surface, and the upper shell Combined with the opening, the reaction space and the sterilizing device can communicate with the first air hole and the second air hole.

In this way, a sterilizing and disinfecting air purifier for vehicles of the present invention is combined with, for example, the side of the air-conditioning system internal air intake of a vehicle to provide the air-conditioning system air intake of the vehicle, and the polluted air sucked in passes through the second air hole Or the first air hole enters the reaction space of the sterilizing and disinfecting air cleaner for the vehicle to sterilize, disinfect and purify the polluted air. In some embodiments, a power supply, such as a vehicle power supply, is electrically connected to the ultraviolet light source Circuit board, and UV ultraviolet light source thereof, this UV ultraviolet light source is UVA ultraviolet light source in the embodiment, and wavelength can produce UVA ultraviolet light between 320～400 nanometers, in order to irradiate the reaction plate that this surface has photocatalyst film layer, The photocatalytic reaction will produce free hydroxyl groups and active oxygen with strong oxidizing ability in the reaction space. Its high-intensity photoredox function can oxidize and decompose various organic compounds and some inorganic substances, and can destroy bacteria. Cell membranes and proteins that immobilize viruses, kill bacteria and decompose organic Pollutants, decompose organic pollutants into non-polluting water (H2O) and carbon dioxide (CO2), so it has the functions of sterilization, deodorization, mildew resistance, anti-pollution self-cleaning, and air purification.

The ultraviolet light source circuit board and the reaction plate with a photocatalyst film layer on the surface of the above-mentioned some embodiments are arranged in the reaction space in parallel with each other by a fixed frame 90, and the UVA ultraviolet light source is arranged on one side of the ultraviolet light source circuit board. Side, and facing the reaction plate with photocatalyst film layer on the surface, the ultraviolet light source circuit board is electrically connected to a power supply, such as the power supply of the vehicle, and the UVA-LED lamp that provides UVA ultraviolet light source can irradiate the photocatalyst film layer in an appropriate direction and distance In the embodiment, for example, the nano-scale titanium dioxide film layer is irradiated with ultraviolet light to generate photocatalyst catalytic reaction to disinfect and sterilize the polluted air, and a UVC-LED lamp combined with a UVC ultraviolet light source is formed on the surface of the ultraviolet light source circuit board, And a negative ion generator is combined in the reaction space in the lower shell, the negative ion generator is used to electrically connect the vehicle power supply, the ultraviolet light source circuit board is electrically connected to the vehicle power supply, and the UVC-LED ultraviolet light source is provided to generate UVC ultraviolet light , The short-wave sterilization UVC ultraviolet wavelength is between 200 and 280 nanometers, which has instant and high-efficiency sterilization and disinfection effects.

In this way, the polluted gas absorbed by the vehicle air inlet can enter the reflection space from the second air hole and the third air hole accepts the UVA to sterilize and sterilize the catalytic reaction of the titanium dioxide photocatalyst and the direct irradiation of the UVC ultraviolet light source for sterilization, disinfection, Clean air, clean air, negative ion generator is used to generate negative ions in the reaction space, and generate electrostatic reaction to the polluted air input in the reaction space from the air-conditioning inlet of the vehicle mentioned above, absorb tiny particles and dust in the polluted air, and purify the air by reducing dust , Quickly eliminates odors. The purified air is output from the first air hole to the interior space of the vehicle through the air-conditioning outlet of the vehicle; or in another embodiment, the polluted gas absorbed by the air inlet can enter the reflection space and the second air hole from the first air hole. Four stomata sterilization, disinfection, cleaning and output from the second air hole to the interior space of the vehicle through the air-conditioning outlet of the vehicle, which can purify the air, oxidize and decompose various polluted air inhaled by the vehicle air intake, and degrade and eliminate air pollutants, including, Bacteria, viruses, odors, volatile organic compounds, etc. Compared with existing air purification devices, the sterilizing and disinfecting air purifier for vehicles has a better air purification effect.

100: Sterilization and disinfection air purifier for vehicles

10: Sterilization device

11: UV light source circuit board

110:UV ultraviolet light source

113: UVA ultraviolet light source

115: UVC ultraviolet light source

13: Reaction plate

130: Photocatalyst film layer

15: Plasma area

51: lower shell

511: the first air hole

513: opening

515: reaction space

517: rail groove

53: Upper shell

531:Second stomata

533: plug

7: Negative ion generator

90: fixed frame

901: first slot

903: second slot

91: The first frame

911: The third air hole

93: The second frame body

931: The fourth stomata

Fig. 1 is the three-dimensional view of the sterilizing and disinfecting air cleaner for vehicles of this invention.

Fig. 2 is the exploded view of the sterilizing and disinfecting air cleaner for vehicles of this creation.

Fig. 3 is the sectional view of the AA end face of the front view of the sterilizing and disinfecting air purifier for vehicles in Fig. 1 of this creation.

Please refer to Fig. 1 to Fig. 3, an embodiment of the present invention, a vehicle sterilization and disinfection air purifier 100, includes a sterilizing device 10, and the sterilizing device 10 includes an ultraviolet light source circuit board 11, a photocatalyst film layer 130 on the surface The reaction plate 13 of the ultraviolet light source circuit board 11 includes a UV ultraviolet light source 110, and the UV ultraviolet light source 110 further includes a UVA ultraviolet light source 113; a lower shell 51, an upper shell 53, and the lower shell 51 includes a first air hole 511 The inner space of the lower case 51 formed on one side of the lower case 51 and an opening 513 formed on the other side of the lower case 51 and inside the opening 513 defines a reaction space 515, and the upper case 53 includes a second air hole 531 formed On one side of the upper shell 53, wherein the sterilizing device 10 is combined in the reaction space 515 of the lower shell 51, the ultraviolet light source circuit board 11 and the reaction plate 13 with the photocatalyst film layer 130 on the surface are arranged in parallel and spaced apart from each other. In the reaction space 515; the UVA ultraviolet light source 113 of the UV ultraviolet light source 110 is located on one side of the ultraviolet light source circuit board 11 and faces the reaction plate 13 with a photocatalyst film layer 130 on the surface, and the upper case 53 is combined in the opening 513 ,Place The reaction space 515 and the sterilizing device 10 can communicate with the first air hole 511 and the second air hole 531 .

In this way, a vehicle sterilizing and disinfecting air purifier 100 of the present invention is combined with, for example, the side of the air inlet of a vehicle's air conditioning system to provide the air inlet of the vehicle's air conditioning system, and the polluted air sucked in passes through the second air inlet. The air hole 531 or the first air hole 511 enters the reaction space 515 of the sterilizing and disinfecting air cleaner 100 for the vehicle to sterilize, disinfect and purify the polluted air. In some embodiments, a power supply, such as a vehicle power supply Sexually connect this ultraviolet light source circuit board 11, and its UV ultraviolet light source 110, this UV ultraviolet light source 110 is UVA ultraviolet light source 113 in the embodiment, can produce UVA ultraviolet light, in order to irradiate the reaction that this surface has photocatalyst film layer 130 The photocatalytic reaction of plate 13 will produce free hydroxyl groups and active oxygen including extremely strong oxidizing ability in the reaction space 515. Its high-intensity photoredox function can oxidize and decompose various organic compounds and some inorganic substances, and can Destroy the cell membrane of bacteria and solidify the protein of virus, kill bacteria and decompose organic pollutants, and decompose organic pollutants into non-polluting water (H2O) and carbon dioxide (CO2), so it has the functions of sterilization, deodorization, mildew resistance and antifouling Self-cleaning, air purification function.

In this invention, some embodiments of a sterilizing and disinfecting air purifier 100 for vehicles are created. The UVA ultraviolet light source 113 produces UVA ultraviolet light with a wavelength of 320 to 400 nanometers, which is long-wave dark spot effect ultraviolet rays with strong penetrating power. It can penetrate glass, water and other materials, and UVA irradiates the reaction plate 13 with a photocatalyst film layer 130 on the surface to carry out photocatalytic reaction, and stimulates the generation of free hydroxyl groups and active oxygen including extremely strong oxidizing ability in the reaction space 515 , its high-intensity photoredox function, used for the pollution gas absorbed by the vehicle air inlet can enter the reaction space 515 from the second air hole 531 to sterilize, disinfect, and purify the air, and output from the first air hole 511 through the The air conditioner air outlet of the vehicle to the vehicle interior space; or the polluted gas sucked by the air inlet can enter the reaction space 515 from the first air hole 511 to sterilize, disinfect, and purify the air, and be transported from the second air hole 531 It can purify the air, oxidize and decompose various polluted air inhaled by the air inlet of the vehicle, and degrade and eliminate air pollutants, including bacteria, viruses, odor, volatile organic compounds, etc.

The UV light exposure is set to generate free radicals that can decompose air pollutants such as VOCs into harmless products such as water and carbon dioxide, effectively enabling the removal of air pollutants.

Please refer to Fig. 1 to Fig. 3, this invention creates a kind of vehicle sterilization and disinfection air cleaner 100, wherein the UV ultraviolet light source 110 is a UVA-LED lamp, which can be a kind of blue LED. In the embodiment, UV-A- The wavelength of the LED lamp is between 300 and 400 nanometers. It is a photocatalyst sterilization process that irradiates UVA on a glass sheet coated with a titanium dioxide film. The known principle of photocatalysis is that the redox ability of photocatalysis under light conditions can achieve the purification of pollutants, the synthesis and transformation of substances. Generally, photocatalytic oxidation reactions use semiconductors as catalysts and light as energy to degrade organic matter into carbon dioxide and water. In some embodiments, when nano-sized titanium dioxide microparticles are irradiated by ultraviolet rays (UVA) with a wavelength below 388nm, their interior is excited to generate electrons due to the absorption of light energy, that is, photogenerated carriers, and then quickly migrate to its surface and activate Adsorbed oxygen and water, UVA irradiated on the photocatalyst reaction of the glass plate coated with titanium dioxide film, generate active free hydroxyl groups and active oxygen, when pollutants and bacteria adsorb on its surface, a chain degradation reaction will occur, which can Oxidative decomposition of various organic compounds and some inorganic substances, can destroy the cell membrane of bacteria and solidify virus protein, kill bacteria and decompose organic pollutants, and decompose organic pollutants into non-polluting water (H2O) and carbon dioxide (CO2), so it has Sterilization, deodorization, anti-mildew, anti-fouling, self-cleaning, and air-purifying functions.

Please refer to FIGS. 1 to 3, wherein the ultraviolet light source circuit board 11 further includes a UVC ultraviolet light source 115, wherein the ultraviolet light source is, for example, a UVC-LED lamp, which can be one of blue LEDs, and the UVC-LED lamp is formed on the The surface of the ultraviolet light source circuit board 11, the ultraviolet The light source circuit board 11 is electrically connected to a power supply, such as a vehicle power supply, to provide the UVC ultraviolet light source to generate UVC ultraviolet light. The UVC ultraviolet light for short-wave sterilization has a wavelength of 200-280 nanometers, which has high-efficiency sterilization. The bactericidal effect of viruses is generally completed within a few seconds, almost instantaneously, and the sterilizing ability is 600~3000 times greater than that of chlorine. Among them, the ultraviolet ray with a wavelength of 253.7nm has the best sterilization and disinfection effect; Among the technologies, the universality of sterilization is the highest. It can kill almost all bacteria and viruses with high efficiency, and can exert stronger and more thorough sterilization and disinfection power. Some international laboratories have also confirmed that it can effectively eliminate COVID-19. Ultraviolet rays directly irradiate the air and the surface of objects to achieve strong sterilization and disinfection. It is currently an effective technology to limit the spread of viruses and evaluate them.

In some embodiments, the sterilizing and disinfecting air purifier 100 for vehicles of the present invention has no directional restrictions on installation and use, such as the position of the air inlet of the internal circulation of the automobile air conditioner, the airflow polluted by the vehicle from the second air hole 531 (or the second air hole 531) An air hole 511), through the reaction space 515 between the ultraviolet light source circuit board 11 and the reaction plate 13 with the photocatalyst film layer 130 on the surface, the pollutants in the air are sterilized and sterilized, and the air is purified and then passed through the first air hole 511 (or the second air hole 531 ), it is discharged to the air outlet of the vehicle air conditioner into the interior space of the vehicle, so as to purify the air in the vehicle.

Please refer to shown in Fig. 1 to Fig. 3, wherein this reaction board 13 comprises any one of materials such as insulating dielectric layer or other such as air-permeable substrate, metal, glass, pottery, plastics, and the present novel vehicle sterilizing and disinfecting air purifier 100 In some embodiments, the photocatalyst-catalyzed film layer may be, for example, coated or plated with one or more coatings including but not limited to titanium dioxide or nano-titanium dioxide or/and oxides or alloys thereof. The coating of titanium dioxide is incorporated in the sterilization device 10, the catalyst has a nano-mesoporous structure, the total effective surface area of which is increased. The nano-titanium dioxide catalyst can be mixed with other elements, such as magnesium, gold, molybdenum, cobalt, nickel, titanium, zinc, palladium, copper, manganese, Lanthanum, molybdenum, tungsten, vanadium, selenium, barium, cerium, tin, iron, or their oxides to improve their photocatalytic performance. The catalyst can be bonded to the reaction plate 13 made of glass or other materials such as gas-permeable substrates, metal, glass, ceramics, plastics, etc. by means of coating, deposition, dip coating or gel method.

Please refer to FIGS. 1 to 3, wherein the photocatalyst film layer 130 is preferably a titanium dioxide film layer. In some embodiments, the photocatalyst film layer 130 includes titanium dioxide, nanometer titanium dioxide TiO ₂ or/and its oxidized One or more coatings of SnO2 or its alloys, any of the coatings of tin dioxide SnO ₂ or cadmium sulfide CdS.

Please refer to Fig. 1 to Fig. 3 shown, wherein further comprise a negative ion generator 7, this negative ion generator 7 is combined in the reaction space 515 in this lower case 51, and this negative ion generator 7 is in order to electrically connect a power supply, For example, a power supply of a vehicle is used to generate negative ions in the reaction space 515, and generate electrostatic reaction to the polluted air input into the reaction space 515 by the air-conditioning inlet of the aforementioned vehicle to absorb tiny particles and dust of the polluted air, and reduce dust to purify the air. Quickly eliminates odors.

Please refer to Fig. 2 to Fig. 3, according to an embodiment of the new vehicle sterilization and disinfection air purifier 100, wherein the sterilizing device 10 further includes a fixing frame 90, and the fixing frame 90 is combined in the reaction space inside the lower shell 51 515, the fixed frame 90 further includes a first frame body 91 and a second frame body 93, the first frame body 91 is formed with a third air hole 911 in the middle area, and the second frame body 93 is formed with a fourth air hole in the middle area Air holes 931, the first frame body 91 is combined with the second frame body 93 to form the fixed frame 90, wherein a first groove 901 is formed on one side of the fixed frame 90 and a second groove 903 is formed on the other side of the fixed frame 90, wherein The ultraviolet light source circuit board 11 is combined in the first groove 901 , and the reaction plate 13 with the photocatalyst film layer 130 on the surface is combined in the second groove 903 .

The ultraviolet light source circuit board 11 and the reaction plate 13 with the photocatalyst film layer 130 on the surface of some of the above-mentioned embodiments are arranged in the reaction space in parallel with each other by a fixed frame 90 515, the UVA ultraviolet light source 113 is located on one side of the ultraviolet light source circuit board 11, and faces the reaction plate 13 with a photocatalyst film layer 130 on the surface, and the ultraviolet light source circuit board 11 is electrically connected to a power supply, such as the power supply of the vehicle, to provide The UVA-LED ultraviolet light source can irradiate the photocatalyst film layer 130 in an appropriate direction and distance. In the embodiment, for example, the nano-scale titanium dioxide film layer is irradiated with ultraviolet rays to generate a photocatalyst catalytic reaction to disinfect and sterilize the polluted air, and combine a The UVC-LED lamp of the UVC ultraviolet light source 115 is formed on the surface of the ultraviolet light source circuit board 11, and a negative ion generator 7 is combined in the reaction space 515 in the lower shell 51, and the negative ion generator 7 is used to electrically connect the vehicle power supply The ultraviolet light source circuit board 11 is electrically connected to the power supply of the vehicle to provide the UVC-LED ultraviolet light source to generate UVC ultraviolet light. The short-wave sterilizing UVC ultraviolet light has a wavelength of 200-280 nanometers, and has instant high-efficiency sterilization and disinfection effects.

In this way, the polluted gas absorbed by the vehicle air inlet can enter the reaction space 515 from the second air hole 531 and the third air hole 911 accepts the UVA to sterilize and sterilize the titanium dioxide photocatalyst catalytic reaction and directly irradiates the UVC ultraviolet light source for sterilization , Disinfection, purification of air, clean air, the negative ion generator is used to generate negative ions in the reaction space 515, and generate electrostatic reaction to the polluted air input into the reaction space 515 by the air-conditioning inlet of the aforementioned vehicle to absorb tiny particles of the polluted air, Dust, reduce dust, purify the air, and quickly eliminate odors. The purified air is output from the first air hole 511 to the interior space of the vehicle through the air-conditioning outlet of the vehicle; or in another embodiment, the polluted gas absorbed by the air inlet can enter the reaction space 515 from the first air hole 511 And the fourth air hole 931 sterilizes, disinfects, and purifies the air, and outputs from the second air hole 531 through the air-conditioning outlet of the vehicle to the interior space of the vehicle, which can purify the air and oxidize and decompose various substances inhaled by the vehicle air inlet. Pollution of the air, degradation and elimination of air pollutants, including bacteria, viruses, odors, volatile organic compounds, etc.

Please refer to Fig. 2 to Fig. 3, according to an embodiment of the new vehicle sterilization and disinfection air cleaner 100, wherein a plurality of rail grooves 517 are formed around the lower shell 51; The bolt 533 , the position of the bolt 533 corresponds to the rail groove 517 , and the bolt 533 is used for detachably passing through the rail groove 517 tightly.

According to an embodiment of the novel vehicle sterilization and disinfection air purifier 100, wherein the ultraviolet light source circuit board 11 and the reaction plate 13 having a photocatalyst film layer 130 on the surface include any one of a rectangle, a square or a "U" shape (not shown in the figure) ), those with ordinary knowledge in the field can understand and use these shape structures.

Please refer to shown in Fig. 2, according to an embodiment of the novel vehicle sterilization and disinfection air purifier 100, wherein either side of the negative ion generator 7 is combined with a discharge needle (not shown in the figure), allowing the negative high voltage to be discharged by the needle point Generate ions.

The user can also set the sterilizing and disinfecting air purifier 100 for vehicles of this invention on the air inlets of various air-conditioning equipment, such as the position of the air-conditioning circulation air inlets of automobiles, heavy locomotives, ships, aircraft and various building living spaces. Sterilization, cooperate with the negative ion dust-reducing effect of the negative ion generator 7 to sterilize, disinfect and purify the polluted air in the car and various spaces, and the sterilized clean air is discharged from the air outlet of the air conditioner to the vehicle Or various uses of the interior space.

The above descriptions are only preferred embodiments of the invention, and the described embodiments are only a part of the embodiments of the invention, not all embodiments. Based on the embodiments in this creation, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this creation.

100: Sterilization and disinfection air purifier for vehicles

10: Sterilization device

11: UV light source circuit board

110:UV ultraviolet light source

113: UVA ultraviolet light source

115: UVC ultraviolet light source

13: Reaction plate

130: Photocatalyst film layer

15: Plasma area

51: lower shell

511: the first air hole

513: opening

515: reaction space

517: rail groove

53: Upper shell

531:Second stomata

533: plug

7: Negative ion generator

90: fixed frame

901: first slot

903: second slot

91: The first frame

911: The third air hole

93: The second frame body

931: The fourth stomata

Claims (10)

A sterilizing and disinfecting air purifier for vehicles, comprising: A sterilizing device, the sterilizing device includes an ultraviolet light source circuit board, a reaction plate with a photocatalyst film layer on the surface, the ultraviolet light source circuit board includes a UV ultraviolet light source, and the UV ultraviolet light source further includes a UVA ultraviolet light source; A lower shell and an upper shell, the lower shell includes a first air hole formed on one side of the lower shell, an opening formed on the other side of the lower shell, and the inner space of the lower shell inside the opening defines a reaction space, the upper shell The shell includes a second air hole formed on one side of the upper shell, wherein the sterilizing device is combined in the reaction space of the lower shell, and the ultraviolet light source circuit board and the reaction plate with a photocatalyst film layer on the surface are arranged in parallel with each other and spaced apart from each other. within the reaction space; The UVA ultraviolet light source is located on one side of the ultraviolet light source circuit board and faces the reaction plate with a photocatalyst film layer on the surface, the upper shell is combined with the opening, and the reaction space and the sterilizing device can communicate with the first air hole and the second air hole. As described in item 1 of the scope of the patent application, the vehicle sterilizing and disinfecting air purifier, wherein the UV light source is a UVA-LED lamp with a wavelength of 320-400 nanometers. As described in item 1 of the scope of the patent application, the sterilizing and disinfecting air purifier for vehicles, wherein the ultraviolet light source circuit board further includes a UVC ultraviolet light source formed on the surface of the ultraviolet light source circuit board. As described in item 3 of the scope of the patent application, the vehicle sterilization and disinfection air purifier, wherein the ultraviolet light source is a UVC-LED lamp with a wavelength between 200 and 280 nanometers. According to the vehicle sterilization and disinfection air purifier described in item 1 of the scope of the patent application, wherein the reaction plate includes an insulating dielectric layer or any other material such as a gas-permeable substrate, metal, glass, ceramics, plastics, and the like. As the vehicle sterilization and disinfection air purifier described in item 1 of the scope of the patent application, wherein the photocatalyst film layer is a titanium dioxide film layer. As the vehicle sterilization and disinfection air purifier described in item 1 of the scope of the patent application, wherein the photocatalyst film layer includes titanium dioxide, nanometer titanium dioxide TiO ₂ or/and its oxide or its alloy or one or more coatings, dioxide Either tin SnO ₂ or cadmium sulfide CdS coating. As described in the first item of the scope of the patent application, the vehicle sterilization and disinfection air purifier further includes a negative ion generator, which is combined in the reaction space in the lower shell, and the negative ion generator is used to electrically connect a A power source for generating negative ions in said reaction space. As described in any one of the 1st to 8th items in the scope of the patent application, the vehicle sterilization and disinfection air cleaner also includes a fixing frame, which is combined in the reaction space inside the lower shell, and the fixing frame further includes The first frame body and the second frame body, the first frame body is formed with a third air hole in the middle area, and the second frame body is formed with a fourth air hole in the middle area, the first frame body is combined with the second frame body to form The fixed frame, wherein a first groove is formed on one side of the fixed frame and a second groove is formed on the other side of the fixed frame, wherein the ultraviolet light source circuit board is combined in the first groove, and the reaction plate with a photocatalyst film layer on the surface is combined in the second slot. For the vehicle sterilization and disinfection air purifier described in item 9 of the scope of the patent application, a plurality of rail grooves are formed around the lower shell; a plurality of latches are formed around the upper casing, and the positions of the latches correspond to the rail grooves. The bolt is used for detachably threading and tightening the rail groove.

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