Air sterilization device

Abstract

This application discloses an air purification device, belonging to the field of air treatment technology. This air purification device is installed in the air duct of an aircraft cabin. The air duct has an airflow chamber and an air inlet and an air outlet communicating with the airflow chamber. The air purification device includes: a first processing component installed in the airflow chamber; a second processing component installed at the air outlet, the second processing component including an activated carbon layer; and a power supply component, the positive electrode of which is electrically connected to the first processing component, and the negative electrode of which is electrically connected to the activated carbon layer. Plasma is generated by using the first processing component and the activated carbon layer on the second processing component as positive and negative electrodes, respectively, to purify the air in the duct. Furthermore, the ozone generated after purification and other harmful substances remaining in the air can be absorbed by the activated carbon layer, improving the air purification effect.

Description

Technical Field

[0001] This application relates to the field of air treatment technology, and more particularly to an air disinfection device. Background Technology

[0002] Aircraft cabins are enclosed spaces with high passenger density, necessitating air purification to improve air quality. Currently, methods such as ultraviolet light, ozone, and dielectric barrier discharge are commonly used. However, these methods still leave some harmful substances in the air, posing a potential hazard to passengers. Utility Model Content

[0003] Purpose of this application: This application provides an air disinfection device to overcome the technical problem that some harmful substances still remain in the air after disinfection.

[0004] Technical solution: An air disinfection device according to an embodiment of this application is used to install in an air duct in an aircraft cabin. The air duct has an airflow chamber and an air inlet and an air outlet communicating with the airflow chamber. The air disinfection device includes: A first processing component is disposed within the airflow cavity; A second processing component is provided at the air outlet, and the second processing component includes an activated carbon layer. A power supply assembly, wherein the positive terminal of the power supply assembly is electrically connected to the first processing assembly, and the negative terminal of the power supply assembly is electrically connected to the activated carbon layer, so as to form plasma between the first processing assembly and the activated carbon layer, and the plasma disinfects the air transmitted from the air inlet to the air outlet.

[0005] In some embodiments, the first processing component includes: The circuit section is connected to the power supply assembly; The discharge section is connected to the side of the circuit section facing the activated carbon layer, and forms the plasma between the discharge section and the activated carbon layer.

[0006] In some embodiments, the circuit section includes: Multiple first circuit strips are arranged at intervals along the length direction; Multiple second circuit strips are arranged at intervals along the height direction and are staggered with multiple first circuit strips to form multiple spaced ventilation holes, wherein the height direction intersects the length direction; The discharge section is connected to the side of the first circuit bar facing the activated carbon layer, and / or connected to the side of the second circuit bar facing the activated carbon layer.

[0007] In some embodiments, a plurality of ventilation holes arranged along the length direction form a through-hole group, and the number of through-hole groups is multiple, with the plurality of through-hole groups arranged at intervals along the height direction.

[0008] In some embodiments, the discharge section includes: Multiple electrode groups are arranged at intervals along the height direction. Each electrode group includes multiple needle electrodes arranged at intervals along the length direction. The needle electrodes are connected to the circuit section. The diameter of the needle electrodes gradually decreases along the direction from the first processing component to the activated carbon layer.

[0009] In some embodiments, the distance between the discharge section and the activated carbon layer is H, which satisfies: 20mm≤H≤60mm.

[0010] In some embodiments, the first processing component further includes: A first frame is disposed around the outer periphery of the circuit section and is detachably connected to the air duct.

[0011] In some embodiments, the second processing component further includes: The second frame is disposed around the outer periphery of the activated carbon layer and is detachably connected to the air duct.

[0012] In some embodiments, the air disinfection device further includes: A third processing component is disposed at the air inlet and connected to the air duct. The third processing component is used to pre-process the air entering the airflow chamber.

[0013] In some embodiments, the third processing component includes: A filter layer is used to pre-treat the air entering the airflow cavity; The third frame is disposed around the outer periphery of the filter layer and is detachably connected to the air duct.

[0014] Beneficial Effects: The air purification device of this application embodiment is used to install in the air duct of an aircraft cabin. The air duct has an airflow chamber and an air inlet and an air outlet communicating with the airflow chamber. The air purification device includes: a first processing component for installation in the airflow chamber; a second processing component for installation at the air outlet, the second processing component including an activated carbon layer; and a power supply component, the positive electrode of which is electrically connected to the first processing component, and the negative electrode of which is electrically connected to the activated carbon layer, so that plasma is formed between the first processing component and the activated carbon layer. The plasma purifies the air transported from the air inlet to the air outlet. By using the activated carbon layer on the first and second processing components as positive and negative electrodes respectively to generate plasma, the air in the duct is purified. Furthermore, the ozone generated after purification and other harmful substances remaining in the air can be absorbed by the activated carbon layer, improving the air purification effect. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the connection between the air disinfection device and the air duct in an embodiment of this application; Figure 2 This is a perspective view of the air disinfection device according to an embodiment of this application; Figure 3 This is a front view of the air disinfection device according to an embodiment of this application; Figure 4 This is a perspective view of the third processing component in an embodiment of this application; Figure 5 This is a perspective view of the first processing component in an embodiment of this application; Figure 6 This is a front view of the first processing component in an embodiment of this application; Figure 7 This is a perspective view of the second processing component in an embodiment of this application.

[0017] Explanation of reference numerals in the attached figures: 10-Air duct; 11-Airflow chamber; 12-Air inlet; 13-Air outlet; 20-First processing component; 21-Circuit section; 211-First circuit strip; 212-Second circuit strip; 22-Discharge section; 221-Electrode group; 222-Needle electrode; 23-Through hole group; 231-Ventilation hole; 24-First frame; 30-Second processing component; 31-Activated carbon layer; 32-Second frame; 40-Power supply component; 50-Plasma; 60-Third processing component; 61-Filter layer; 62-Third frame; X-Length direction; Y-Height direction. Detailed Implementation

[0018] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the protection scope of this application.

[0019] Air quality in aircraft cabins has a significant impact on the safety, health, and comfort of passengers and crew. Because aircraft cabins are enclosed spaces with high passenger density, air purification is necessary to improve air quality. Currently, methods such as ultraviolet light, ozone, and dielectric barrier discharge are commonly used for purification. However, these methods still leave some harmful substances in the air, posing a certain risk to passengers.

[0020] In view of the above, embodiments of this application provide an air disinfection device to overcome at least one of the above-mentioned technical problems.

[0021] Please see Figure 1 , Figure 2 and Figure 3 In this embodiment, the air disinfection device is installed in an air duct 10 of an aircraft cabin. The air duct 10 has an airflow chamber 11, and an air inlet 12 and an air outlet 13 communicating with the airflow chamber 11. The air disinfection device includes a first processing component 20, a second processing component 30, and a power supply component 40. The first processing component 20 is installed in the airflow chamber 11. The second processing component 30 is installed at the air outlet 13 and includes an activated carbon layer 31. The positive electrode of the power supply component 40 is electrically connected to the first processing component 20, and the negative electrode of the power supply component 40 is electrically connected to the activated carbon layer 31, so that plasma 50 is formed between the first processing component 20 and the activated carbon layer 31. The plasma 50 disinfects the air transmitted from the air inlet 12 to the air outlet 13.

[0022] Understandably, the aircraft cabin air duct 10 has an air inlet 12 and an air outlet 13. Outside air enters the airflow chamber 11 of the air duct 10 through the air inlet 12, flows towards the air outlet 13 within the airflow chamber 11, and then enters the aircraft cabin through the air outlet 13 to supply air to the cabin. An air purification device is used to treat the air in the aircraft cabin and is generally installed in the aircraft cabin air duct 10. A first processing component 20 can be installed inside the airflow chamber 11, and a second processing component 30 can be installed at the air outlet 13. The second processing component 30 can be installed inside the air duct 10 to seal the air outlet 13, or it can be installed outside the air duct 10 to seal the air outlet 13. An activated carbon layer 31 can be provided on the second processing component 30. The activated carbon layer 31 adopts a honeycomb plate structure and has multiple filling holes for filling activated carbon material. When the air in the air duct 10 flows, it can pass through the pores inside the activated carbon material, which is conducive to air circulation and will also adsorb some harmful substances in the air.

[0023] The air purification device also includes a power supply component 40. The first processing component 20 can be electrically connected to the positive electrode of the power supply component 40, and the activated carbon layer 31 on the second processing component 30 can be electrically connected to the negative electrode of the power supply component 40. When a certain voltage is applied to the power supply component 40, electron transitions occur on the surface of the first processing component 20, generating a high-energy electron beam that triggers an ionization reaction to generate corresponding free radicals. Simultaneously, the surface of the activated carbon layer 31 attracts cations due to its negative potential, forming a double-layer structure. Under the action of a strong electric field, corona discharge occurs in the double-layer region (because it is in the form of corona discharge, the power supply component 40 can use an inexpensive pulsed DC high-voltage power supply), ionizing gas molecules to form plasma 50. Plasma 50 contains a large number of high-energy electrons and excited-state active particles, which can effectively degrade pollutants in the air (such as bacteria and viruses), ensuring clean air and improving the quality of air entering the aircraft cabin. In the air passing through plasma 50, some ozone may be generated due to ionization. The ozone will pass through the activated carbon layer 31 with the air. Through the adsorption effect of activated carbon layer 31, ozone can be adsorbed, as well as residual benzene, formaldehyde, ammonia and other toxic and harmful gases and microorganisms that have not been degraded by plasma, which can further improve the air treatment effect and achieve the function of synergistic purification.

[0024] Please see Figure 5 In conjunction with the above embodiments, in some embodiments, the first processing component 20 includes a circuit section 21 and a discharge section 22. The circuit section 21 is connected to the power supply component 40. The discharge section 22 is connected to the side of the circuit section 21 facing the activated carbon layer 31, and forms plasma 50 between the discharge section 21 and the activated carbon layer 31.

[0025] Understandably, a circuit section 21 can be provided on the first processing component 20. The circuit section 21 can be a PCB circuit board, configured with a mesh structure to facilitate air passage. Multiple connection points can be provided on the side of the circuit section 21 facing the activated carbon layer 31. These connection points can be made of copper foil. Multiple discharge sections 22 are soldered to the corresponding connection points, allowing the multiple discharge sections 22 to form an electrical connection with the circuit section 21. The discharge sections 22 can be configured with a needle-like structure. Simultaneously, the circuit section 21 is connected to the positive terminal of the power supply component 40. When a certain voltage is applied to the power supply component 40, a strong electric field can be formed between the multiple discharge sections 22 and the activated carbon layer 31, partially ionizing the air and generating a stable, large-scale low-temperature plasma 50, thereby disinfecting the air passing through the plasma 50 region.

[0026] Please see Figure 6 In conjunction with the above embodiments, in some embodiments, the circuit section 21 includes a plurality of first circuit bars 211 and a plurality of second circuit bars 212.

[0027] Multiple first circuit strips 211 are arranged at intervals along the length direction X. Multiple second circuit strips 212 are arranged at intervals along the height direction Y, and are staggered with the multiple first circuit strips 211, together forming multiple spaced ventilation holes 231, with the height direction Y intersecting the length direction X. The discharge section 22 is connected to the side of the first circuit strip 211 facing the activated carbon layer 31, and / or connected to the side of the second circuit strip 212 facing the activated carbon layer 31. Herein, the length direction X refers to the direction of the length of the first processing component 20, and the height direction Y refers to the direction of the height of the first processing component 20. Preferably, the length direction X and the height direction Y are perpendicular to each other.

[0028] Understandably, the circuit section 21 can be provided with multiple first circuit strips 211 spaced apart along the length direction X, and multiple second circuit strips 212 spaced apart along the height direction Y. The first circuit strips 211 and the second circuit strips 212 can be straight or curved. The multiple first circuit strips 211 and the multiple second circuit strips 212 can be arranged in an alternating pattern to form a mesh structure, thereby forming multiple ventilation holes 231 for air circulation. The multiple ventilation holes 231 can be arranged along the length direction X, along the height direction Y, or in both directions. The multiple discharge sections 22 can be connected to the multiple first circuit strips 211 and disposed on the side of the first circuit strips 211 facing the activated carbon layer 31, or connected to the multiple second circuit strips 212 and disposed on the side of the second circuit strips 212 facing the activated carbon layer 31, or disposed at the intersection of the first circuit strips 211 and the second circuit strips 212 and facing the activated carbon layer 31, to facilitate the formation of plasma 50 between them and the activated carbon layer 31. The lateral spacing between multiple discharge sections 22 can be set to 20mm, and the longitudinal spacing can also be 20mm. The material is tungsten with gold electroplating on the surface.

[0029] Please see Figure 6 In conjunction with the above embodiments, in some embodiments, a plurality of ventilation holes 231 arranged along the length direction X form a through hole group 23, and the number of through hole groups 23 is multiple, and the multiple through hole groups 23 are arranged at intervals along the height direction Y.

[0030] It is understandable that when multiple first circuit strips 211 and multiple second circuit strips 212 are arranged in an alternating pattern to form multiple ventilation holes 231, the multiple ventilation holes 231 can be arranged at intervals along the length direction X. The multiple ventilation holes 231 arranged along the length direction X form a through-hole group 23. The number of through-hole groups 23 can be set according to the space of air flow inside the air duct 10. If multiple through-hole groups 23 are set, the multiple through-hole groups 23 are arranged at intervals along the height direction Y, thereby increasing the number of ventilation holes 231, thereby increasing the air flow area, reducing the obstruction of the first processing component 20 to the air, and allowing more air to pass through the first processing component 20 in the air duct 10, thereby improving the efficiency of air treatment and supply. At the same time, since the number of ventilation holes 231 has increased, the number of first circuit strips 211 and second circuit strips 212 used also increases, and the number of discharge parts 22 set on them also increases. More discharge parts 22 can form a larger plasma 50 between themselves and the activated carbon layer 31, thereby disinfecting more air and meeting the efficiency of air treatment.

[0031] Please see Figure 6In conjunction with the above embodiments, in some embodiments, the discharge unit 22 includes a plurality of electrode groups 221. The plurality of electrode groups 221 are arranged at intervals along the height direction Y, and the electrode group 221 includes a plurality of needle electrodes 222 arranged at intervals along the length direction X. The needle electrodes 222 are connected to the circuit unit 21, and the diameter of the needle electrodes 222 gradually decreases along the direction from the first processing component 20 to the activated carbon layer 31.

[0032] It is understood that the discharge section 22 can be formed by multiple electrode groups 221 arranged at intervals along the height direction Y. Each electrode group 221 is disposed on the first circuit strip 211, or on the second circuit strip 212, or at the connection between the first circuit strip 211 and the second circuit strip 212. Each electrode group 221 includes multiple needle electrodes 222 arranged at intervals along the length direction X. Preferably, the spacing between every two needle electrodes 222 is equal, which allows the multiple needle electrodes 222 on the circuit section 21 to be arranged more evenly, so that a more uniform plasma 50 can be formed between the needle electrodes 222 and the activated carbon layer 31, thereby improving the air disinfection effect. Each needle electrode 222 has a conical structure, that is, along the direction from the first processing component 20 to the activated carbon layer 31, the cross-sectional diameter of the needle electrode 222 gradually decreases, and the smaller end of the needle electrode 222 faces the activated carbon layer 31. After a certain voltage is applied by the power supply component 40, the gas is ionized through tip discharge, which is conducive to the formation of plasma 50 and the disinfection of air.

[0033] Please see Figure 3 In conjunction with the above embodiments, in some embodiments, the distance between the discharge part 22 and the activated carbon layer 31 is H (H can be measured by measuring tools such as a ruler or tape measure), which satisfies: 20mm≤H≤60mm.

[0034] It is understandable that when connecting the first processing component 20 and the second processing component 30 to the air duct 10, an appropriate distance needs to be maintained between the discharge section 22 on the first processing component 20 and the activated carbon layer 31 on the second processing component 30. This distance is generally between 20mm and 60mm (inclusive), where H can be any value from 20mm, 25mm, 30mm, 35mm, 40mm, 45mm, 50mm, 55mm, and 60mm, or a range between any two values. In other words, the distance the air travels within the plasma 50 formed between the two components is between 20mm and 60mm. Setting the distance between the first processing component 20 and the second processing component 30 between 20mm and 60mm can both balance the electric field distribution and breakdown voltage, preventing excessive voltage or uneven discharge, and effectively regulate the characteristics of the plasma 50, ensuring the diffusion of active particles and the control of electron energy.

[0035] If the distance between the discharge section 22 and the activated carbon layer 31 is less than 20mm, the width of the plasma 50 will be relatively small. When air passes through the plasma 50, the flow time inside it will be short, and some pollutants inside the air may not have been completely eliminated before passing through the plasma 50, thus reducing the air treatment effect and making the treated air unable to meet usage requirements. If the distance between the discharge section 22 and the activated carbon layer 31 is greater than 60mm, the excessive distance will make it more difficult for the plasma 50 to form, potentially requiring a larger power supply, increasing the energy consumption of the device, and hindering energy conservation.

[0036] Please see Figure 5 In conjunction with the above embodiments, in some embodiments, the first processing component 20 further includes a first frame 24, which is disposed around the outer periphery of the circuit section 21 and is detachably connected to the air duct 10.

[0037] Understandably, a first frame 24 is also provided on the first processing component 20. The first frame 24 can be made of non-metallic material. The first frame 24 is arranged around the outer periphery of the circuit section 21. Both ends of each first circuit strip 211 and second circuit strip 212 on the circuit section 21 are connected to the first frame 24, mainly serving to support and fix the circuit section 21. The shape of the first frame 24 is set according to the internal space shape of the air duct 10, and can be set as a rectangle, square, circle, etc.

[0038] When the first frame 24 is installed inside the air duct 10, the two can be detachably connected by bolts, clips, or other structures, facilitating the installation and removal of the first frame 24 and enabling quick maintenance and replacement. A sealing structure, such as a sealing ring, can be provided between the outer surface of the first frame 24 and the inner wall of the air duct 10 to improve the sealing effect at the connection point and prevent some air from passing through the gaps between them during airflow. This air may bypass the plasma 50, thus reducing the disinfection effect of the plasma 50. Simultaneously, multiple needle electrodes 222 can be provided on the side of the first frame 24 facing the second treatment component 30. These needle electrodes 222 can be arranged around the circuit section 21, and corresponding circuits can be provided on the first frame 24 to connect with these needle electrodes 222. This increases the formation range of the plasma 50, ensuring that air passing through the ventilation hole 231 can enter the plasma 50 for disinfection, guaranteeing comprehensive disinfection.

[0039] Please see Figure 7In conjunction with the above embodiments, in some embodiments, the second processing component 30 further includes a second frame 32, which is disposed around the outer periphery of the activated carbon layer 31 and is detachably connected to the air duct 10.

[0040] Understandably, the second processing component 30 also includes a second frame 32, which can be made of materials such as surface-extruded alumina profiles, primarily serving to support and fix the activated carbon layer 31. The shape of the second frame 32 is determined according to the internal space shape of the air duct 10, and can be rectangular, square, circular, etc. The activated carbon layer 31 is connected to the inner side of the second frame 32, and is connected to the inner wall of the air duct 10 through the second frame 32. The second frame 32 and the air duct 10 can be detachably connected using bolts, clips, or other structures, thereby facilitating the replacement and maintenance of the second processing component 30.

[0041] Please see Figure 1 In conjunction with the above embodiments, in some embodiments, the air disinfection device further includes a third processing component 60, which is disposed at the air inlet 12 and connected to the air duct 10. The third processing component 60 is used to pre-treat the air entering the airflow chamber 11.

[0042] Understandably, a third processing component 60 is also installed at the air inlet 12 of the air duct 10. The third processing component 60 can be installed inside the air duct 10 to seal the air inlet 12, or it can be installed outside the air duct 10 to seal the air inlet 12. When outside air enters the air duct 10 through the air inlet 12, it will first be pre-treated by the third processing component 60 to remove large particulate impurities from the air, thus preventing large particulate impurities from damaging or clogging subsequent structures.

[0043] Please see Figure 4 In conjunction with the above embodiments, in some embodiments, the third processing component 60 includes a filter layer 61 and a third frame 62.

[0044] The filter layer 61 is used to pre-treat the air entering the airflow chamber 11. The third frame 62 is disposed around the outer periphery of the filter layer 61 and is detachably connected to the air duct 10.

[0045] Understandably, the filter layer 61 on the third processing component 60 can be made of porous materials such as nylon mesh, sponge mesh, or non-woven fabric, capable of filtering large particles in the air. The third frame 62 on the third processing component 60 is arranged around the outer periphery of the filter layer 61 and can be made of materials such as surface-anodized alumina extruded profiles, primarily serving to support and fix the filter layer 61. The shape of the third frame 62 is set according to the internal space shape of the air duct 10, and can be rectangular, square, circular, etc. The filter layer 61 is connected to the inner wall of the air duct 10 through the third frame 62. The third frame 62 and the air duct 10 can be detachably connected using bolts, clips, or other structures, facilitating the replacement and maintenance of the third processing component 60.

[0046] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0047] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0048] The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict.

[0049] The above are merely preferred embodiments of this application and are not intended to limit this application in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the scope of the technical solution of this application shall still fall within the scope of the technical solution of this application.

Claims

1. An air purification device, characterized in that, For installation in an air duct (10) in an aircraft cabin, the air duct (10) having an airflow chamber (11), and an air inlet (12) and an air outlet (13) communicating with the airflow chamber (11); the air disinfection device includes: A first processing component (20) is disposed within the airflow cavity (11); A second processing component (30) is provided at the air outlet (13), the second processing component (30) including an activated carbon layer (31); A power supply assembly (40) is provided, with its positive electrode electrically connected to the first processing assembly (20) and its negative electrode electrically connected to the activated carbon layer (31), so that plasma (50) is formed between the first processing assembly (20) and the activated carbon layer (31), and the plasma (50) disinfects the air transmitted from the air inlet (12) to the air outlet (13).

2. The air disinfection device according to claim 1, characterized in that, The first processing component (20) includes: The circuit section (21) is connected to the power supply assembly (40); The discharge section (22) is connected to the side of the circuit section (21) facing the activated carbon layer (31) and forms the plasma (50) between itself and the activated carbon layer (31).

3. The air disinfection device according to claim 2, characterized in that, The circuit section (21) includes: Multiple first circuit strips (211) are arranged at intervals along the length direction (X); Multiple second circuit strips (212) are arranged at intervals along the height direction (Y) and are staggered with multiple first circuit strips (211) to jointly enclose and form multiple spaced ventilation holes (231), wherein the height direction (Y) intersects with the length direction (X); The discharge section (22) is connected to the side of the first circuit strip (211) facing the activated carbon layer (31), and / or connected to the side of the second circuit strip (212) facing the activated carbon layer (31).

4. The air disinfection device according to claim 3, characterized in that, A plurality of ventilation holes (231) arranged along the length direction (X) form a through hole group (23), and the number of through hole groups (23) is multiple, and the plurality of through hole groups (23) are arranged at intervals along the height direction (Y).

5. The air disinfection device according to claim 2, characterized in that, The discharge section (22) includes: Multiple electrode groups (221) are arranged at intervals along the height direction (Y). Each electrode group (221) includes multiple needle electrodes (222) arranged at intervals along the length direction (X). The needle electrodes (222) are connected to the circuit section (21). The diameter of the needle electrodes (222) gradually decreases along the direction from the first processing component (20) to the activated carbon layer (31).

6. The air disinfection device according to claim 2, characterized in that, The distance between the discharge section (22) and the activated carbon layer (31) is H, which satisfies: 20mm≤H≤60mm.

7. The air disinfection device according to claim 2, characterized in that, The first processing component (20) further includes: A first frame (24) is disposed around the outer periphery of the circuit section (21) and is detachably connected to the air duct (10).

8. The air disinfection device according to claim 1, characterized in that, The second processing component (30) further includes: The second frame (32) is disposed around the outer periphery of the activated carbon layer (31) and is detachably connected to the air duct (10).

9. The air disinfection device according to claim 1, characterized in that, The air disinfection device also includes: A third processing component (60) is disposed at the air inlet (12) and connected to the air duct (10). The third processing component (60) is used to pre-process the air entering the airflow chamber (11).

10. The air disinfection device according to claim 9, characterized in that, The third processing component (60) includes: A filter layer (61) is used to pre-treat the air entering the airflow cavity (11); A third frame (62) is disposed around the outer periphery of the filter layer (61) and is detachably connected to the air duct (10).

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