Air purification device

Abstract

The utility model relates to the technical field of air purification, in particular to an air purification device. The air purification device comprises a device body, a catalysis part and at least one microwave electrodeless ultraviolet part, an air inlet and at least one exhaust hole are formed in the device body, and air enters the device body through the air inlet. A first containing cavity and a second containing cavity are sequentially formed in the device body in the airflow direction, the first containing cavity communicates with the air inlet, and the second containing cavity communicates with the first containing cavity and the exhaust hole. The microwave electrodeless ultraviolet part is arranged in the first containing cavity, and the microwave electrodeless ultraviolet part generates ultraviolet light so as to decompose pollutants in the air into intermediate products and enable oxygen and water in the air to form active oxygen species. The catalysis part is arranged in the second containing cavity, and microwave hot spots are formed in the catalysis part, so that the intermediate product is thoroughly mineralized into water and carbon dioxide under the action of active oxygen species. According to the air purification device, the air purification effect is improved.

Description

Technical Field

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

[0002] Air purifiers can remove pollutants from the air. Common air purifiers include activated carbon air purifiers and ultraviolet air purifiers. Activated carbon air purifiers are mainly used to adsorb gaseous pollutants and odors, while ultraviolet air purifiers are mainly used to kill bacteria, viruses and other microorganisms in the air.

[0003] In existing technology, ultraviolet (UV) air purifiers are devices that use ultraviolet light to disinfect and purify the air. Through the bactericidal effect of UV light, they destroy the DNA or RNA of microorganisms in the air, thereby inhibiting their reproduction. Furthermore, UV light can also cause some volatile organic compounds (VOCs) to react and generate other substances.

[0004] However, existing ultraviolet air purifiers do not completely mineralize some organic compounds during the purification process, and cannot completely mineralize them into water and carbon dioxide, producing intermediate products. Some of these intermediate products are harmful to the human body, resulting in poor air purification effects. Utility Model Content

[0005] This application provides an air purification device that improves air purification efficiency.

[0006] The air purification device provided in this application includes: a device body, a microwave component, a catalyst and at least one microwave electrodeless ultraviolet component. The device body is provided with an air inlet and at least one exhaust port. The air inlet is used to allow air to enter. The device body has a first receiving cavity and a second receiving cavity arranged sequentially along the airflow direction. The first receiving cavity is connected to the air inlet, and the second receiving cavity is connected to the first receiving cavity and the exhaust port.

[0007] A microwave electrodeless ultraviolet (UV) element is disposed within the first receiving cavity. The UV element generates ultraviolet light to decompose pollutants in the air into intermediate products and to cause oxygen and water in the air to form reactive oxygen species.

[0008] A catalyst is disposed within the second receiving cavity, and a microwave hotspot is formed within the catalyst to completely mineralize the intermediate products into water and carbon dioxide under the action of active oxygen species.

[0009] In one possible implementation, the air purification device provided in this application includes a catalyst comprising multiple catalyst units, and a second receiving cavity having multiple receiving areas, with each catalyst unit correspondingly disposed in the receiving area.

[0010] In one possible implementation, the air purification device provided in this application further includes a support assembly, which includes a plurality of first support members and a plurality of second support members. Each first support member and each second support member is disposed within a second receiving cavity, and there is an angle between the first support members and the second support members to divide the second receiving cavity into a plurality of receiving areas.

[0011] In one possible implementation, the air purification device provided in this application uses a metal catalyst as the catalytic unit.

[0012] In one possible implementation, the air purification device provided in this application has a third receiving cavity inside the device body. The third receiving cavity is connected to the air inlet and the first receiving cavity respectively. The third receiving cavity is arranged along the height direction of the device body and is used to receive the air entering the air inlet.

[0013] In one possible implementation, the air purification device provided in this application has a first receiving cavity surrounding the periphery of a third receiving cavity, and a plurality of microwave electrodeless ultraviolet elements are provided, with each microwave electrodeless ultraviolet element being evenly spaced within the first receiving cavity.

[0014] In one possible implementation, the air purification device provided in this application further includes a fixing member disposed within a first receiving cavity, and each microwave electrodeless ultraviolet element is disposed on the fixing member.

[0015] In one possible implementation, the air purification device provided in this application has multiple mounting holes on the fixing member, and each microwave electrodeless ultraviolet component is inserted into the fixing member through the mounting holes.

[0016] In one possible implementation, the air purification device provided in this application further includes a microwave component disposed on the device body, which is used to generate microwaves.

[0017] The microwave electrodeless ultraviolet element receives microwaves to generate ultraviolet light, and the catalytic element receives microwaves to form microwave hot spots within the catalytic element.

[0018] In one possible implementation, the air purification device provided in this application includes a microwave component comprising a microwave element and a power supply element, wherein the microwave element is electrically connected to the power supply element and the microwave element is used to generate microwaves.

[0019] In one possible implementation, the air purification device provided in this application has a fourth receiving cavity inside the device body, which is connected to the first receiving cavity and the second receiving cavity respectively, and the microwave component is disposed in the fourth receiving cavity.

[0020] In one possible implementation, the air purification device provided in this application further includes a first shielding member disposed between the first receiving cavity and the air inlet. The first shielding member is used to prevent microwaves in the first receiving cavity from leaking into the outside air through the air inlet.

[0021] In one possible implementation, the air purification device provided in this application further includes a second shield, which is disposed between the air inlet and the fourth receiving cavity, and is used to prevent microwaves in the fourth receiving cavity from leaking into the outside air through the air inlet.

[0022] In one possible implementation, the air purification device provided in this application also includes a detection element and a controller on the device body, with both the detection element and the microwave component electrically connected to the controller.

[0023] The detection element is used to detect whether there is a person within a preset distance of the device body. When there is a person within the preset distance, the controller controls the microwave component to generate microwaves that are less than the preset value.

[0024] In one possible implementation, the air purification device provided in this application further includes a fan, which is installed at the air inlet.

[0025] The air purification device provided in this application comprises a device body, a catalyst, and at least one microwave electrodeless ultraviolet (UV) element. The device body has an air inlet and at least one exhaust port, with the air inlet for air intake. The device body has a first receiving cavity and a second receiving cavity arranged sequentially along the airflow direction. The first receiving cavity communicates with the air inlet, and the second receiving cavity connects the first receiving cavity with the exhaust port, thus forming an airflow channel. The UV-Vis element, located within the first receiving cavity, generates ultraviolet light that decomposes air pollutants into intermediate products and causes oxygen and water in the air to form reactive oxygen species. The catalyst, located within the second receiving cavity, forms microwave hotspots that, under the action of the reactive oxygen species, completely mineralize the intermediate products into water and carbon dioxide, thereby improving the air purification effect. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the structure of the air purification device provided in the embodiments of this application;

[0028] Figure 2 for Figure 1A structural diagram from another angle;

[0029] Figure 3 for Figure 1 A sectional view of section AA in the middle;

[0030] Figure 4 for Figure 2 A sectional view of section BB in the middle;

[0031] Figure 5 for Figure 3 A schematic diagram of the internal structure of the second accommodating cavity.

[0032] Explanation of reference numerals in the attached figures:

[0033] 100 - Device body; 110 - Air inlet; 120 - First receiving cavity; 130 - Second receiving cavity; 131 - Receiving area; 140 - Third receiving cavity; 150 - Fourth receiving cavity; 160 - Exhaust port;

[0034] 200 - Microwave assembly; 210 - Microwave component; 220 - Power supply component;

[0035] 300-Microwave Electrodeless Ultraviolet Component;

[0036] 400 - Catalytic converter;

[0037] 500 - Support component; 510 - First support element; 520 - Second support element;

[0038] 600 - Fastener; 610 - Mounting hole;

[0039] 700 - First shielding component;

[0040] 800 - Second shielding component;

[0041] 900-fan.

[0042] The accompanying drawings have illustrated specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to specific embodiments. Detailed Implementation

[0043] First, those skilled in the art should understand that these embodiments are merely for explaining the technical principles of this application and are not intended to limit the scope of protection of this application. Those skilled in the art can make adjustments as needed to adapt to specific application scenarios.

[0044] Secondly, it should be noted that, in the description of this application, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, an indirect connection through an intermediate medium, or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0045] Furthermore, it should be noted that in the description of this application, the terms "upper," "lower," "front," "back," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0046] Furthermore, 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. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0047] As the background section describes, existing ultraviolet (UV) air purifiers utilize ultraviolet light to disinfect and purify the air. Through the bactericidal effect of UV light, they destroy the DNA or RNA of microorganisms in the air, thereby inhibiting their reproduction. Furthermore, UV light can cause some volatile organic compounds (VOCs) to react and form other substances. However, existing UV air purifiers do not completely mineralize some organic compounds during the purification process, failing to completely mineralize them into water and carbon dioxide, thus producing intermediate products. Some of these intermediate products are harmful to human health, resulting in poor air purification effectiveness.

[0048] Based on this, the air purification device provided in this application comprises a device body, a catalyst, and at least one microwave electrodeless ultraviolet (UV) element. The device body has an air inlet and at least one exhaust port, with the air inlet for air intake. The device body has a first receiving cavity and a second receiving cavity arranged sequentially along the airflow direction. The first receiving cavity is connected to the air inlet, and the second receiving cavity is connected to the first receiving cavity and the exhaust port, thus forming an airflow channel. The UV-emitting UV element is disposed within the first receiving cavity. It generates ultraviolet light that can decompose pollutants in the air into intermediate products and cause oxygen and water in the air to form reactive oxygen species. The catalyst is disposed within the second receiving cavity. A microwave hotspot is formed within the catalyst, which, under the action of the reactive oxygen species, can completely mineralize the intermediate products into water and carbon dioxide, thereby improving the air purification effect.

[0049] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments of this application will be described in more detail below with reference to the accompanying drawings. In the drawings, the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The described embodiments are some, but not all, of the embodiments of this application. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0050] The air purification device provided in this application refers to... Figures 1 to 4 As shown, it includes: a device body 100, a catalyst 400, and at least one microwave electrodeless ultraviolet element 300. The device body 100 is provided with an air inlet 110 and at least one exhaust port 160. The air inlet 110 is used to allow air to enter. The device body 100 has a first receiving cavity 120 and a second receiving cavity 130 arranged sequentially along the airflow direction. The first receiving cavity 120 is connected to the air inlet 110, and the second receiving cavity 130 is connected to the first receiving cavity 120 and the exhaust port 160.

[0051] The microwave electrodeless ultraviolet element 300 is disposed in the first receiving cavity 120. The microwave electrodeless ultraviolet element 300 generates ultraviolet light to decompose pollutants in the air into intermediate products and to cause oxygen and water in the air to form reactive oxygen species.

[0052] The catalyst 400 is disposed within the second receiving cavity 130. A microwave hotspot is formed within the catalyst 400 to completely mineralize the intermediate products into water and carbon dioxide under the action of active oxygen species.

[0053] Understandably, the device body 100 provides structural support for the entire air purification device so that the microwave electrodeless ultraviolet element 300 and the catalyst element 400 can be stably installed in their respective positions.

[0054] It should be noted that by providing an air inlet 110, a first receiving cavity 120, a second receiving cavity 130 and at least one exhaust hole 160 on the device body 100, an airflow channel is formed, allowing air to flow along the airflow channel, enter from the air inlet 110, pass through the first receiving cavity 120 and the second receiving cavity 130 in sequence, and finally achieve purification, and be discharged through the exhaust hole 160.

[0055] For example, the number of exhaust ports 160 can be one or more. Multiple exhaust ports 160 can effectively discharge the purified air, promote the circulation of air inside and outside the device, help maintain the dynamic balance of airflow inside the device, and improve the overall purification efficiency.

[0056] The first receiving cavity 120 and the second receiving cavity 130 provide installation positions for the microwave electrodeless ultraviolet element 300 and the catalyst element 400, respectively, which can effectively separate different functional components (microwave electrodeless ultraviolet element 300 and catalyst element 400) so that they can perform purification functions in sequence.

[0057] In practical implementation, the microwave electrodeless ultraviolet (UV) element 300 can be an electrodeless lamp. The UV element 300 generates ultraviolet light by receiving microwaves. This ultraviolet light can decompose airborne pollutants into intermediate products and cause oxygen and water in the air to form reactive oxygen species. It should be noted that ultraviolet light of appropriate wavelengths can damage the molecular structure of DNA (deoxyribonucleic acid) or RNA (ribonucleic acid) in microbial cells; high-energy ultraviolet radiation can break the molecular chains of pollutants, photolyzing them to form reactive molecular fragments; vacuum ultraviolet radiation with wavelengths below 200 nm can photolyze O2 to generate oxygen free radicals, which combine with O2 to produce ozone. Furthermore, ozone, after gaining energy from composite ion photons, can decompose extremely rapidly, generating hydroxyl free radicals with even stronger oxidizing power under humid conditions. Both ozone and hydroxyl free radicals are reactive oxygen species.

[0058] The catalyst 400 can receive microwaves, creating microwave hotspots within it. Under the action of reactive oxygen species, intermediate products and unreacted pollutants can be completely mineralized into water and carbon dioxide. The microwave energy creating hotspots within the catalyst 400 improves reaction efficiency and purification effect.

[0059] Specifically, air enters the device body 100 through the air inlet 110, first passing through the first receiving cavity 120. The microwave electrodeless ultraviolet element 300 uses ultraviolet light generated by microwave excitation to decompose pollutants, generating intermediate products and causing oxygen and water in the air to form reactive oxygen species. Subsequently, the air flows into the second receiving cavity 130, where the catalyst element 400, under the action of microwaves, forms hot spots. Under the action of the reactive oxygen species, the intermediate products are completely mineralized into water and carbon dioxide. Through this multi-stage treatment, not only can microorganisms and organic pollutants in the air be effectively removed, but ozone can also be eliminated, improving the efficiency and effectiveness of air purification.

[0060] Understandably, compared to the poor purification effect of existing ultraviolet air purifiers, the air purification device provided in this application comprises a device body 100, a catalyst 400, and at least one microwave electrodeless ultraviolet element 300. The device body 100 has an air inlet 110 and at least one exhaust port 160, with the air inlet 110 for supplying air. The device body 100 has a first receiving cavity 120 and a second receiving cavity 130 arranged sequentially along the airflow direction. The first receiving cavity 120 communicates with the air inlet 110, and the second receiving cavity 130 communicates with the first receiving cavity 120 and the exhaust port 160, thus forming an airflow channel. The microwave electrodeless ultraviolet element 300 is disposed within the first receiving cavity 120. The microwave electrodeless ultraviolet element 300 generates ultraviolet light, which can decompose pollutants in the air into intermediate products and cause oxygen and water in the air to form reactive oxygen species. The catalyst 400 is disposed in the second receiving cavity 130. A microwave hot spot is formed in the catalyst 400, which can completely mineralize the intermediate products into water and carbon dioxide under the action of active oxygen species, thereby improving the air purification effect.

[0061] In some embodiments, refer to Figure 3 and Figure 5 As shown, the catalyst 400 includes multiple catalyst units, and the second receiving cavity 130 has multiple receiving areas 131, with each catalyst unit correspondingly disposed in the receiving area 131.

[0062] It should be noted that distributing multiple catalytic units within multiple containment areas 131 can guide airflow more evenly through each catalytic unit, avoiding dead zones and ensuring that air can fully contact the catalytic element 400, allowing the catalytic element 400 to function effectively and further improving the purification effect.

[0063] For example, the catalytic unit can be fixed by means of a nut and clip, and can be disassembled and replaced after a period of use. Other methods can also be used for fixing. This application does not impose too many restrictions on this.

[0064] In some embodiments, refer to Figure 5As shown, the air purification device also includes a support assembly 500, which includes a plurality of first support members 510 and a plurality of second support members 520. Each first support member 510 and each second support member 520 is disposed in a second receiving cavity 130. The first support members 510 and the second support members 520 have an included angle to divide the second receiving cavity 130 into a plurality of receiving areas 131.

[0065] Understandably, the first support 510 and the second support 520 can help position each catalytic unit so that each catalytic unit can be placed in the corresponding receiving area 131, which helps to optimize the airflow path and allow air to flow evenly through each catalytic unit, thereby improving purification efficiency.

[0066] In a specific implementation, both the first support member 510 and the second support member 520 can be support plates, and the first support member 510 and the second support member 520 can be arranged perpendicular to each other.

[0067] In some embodiments, the catalytic unit is a metal catalyst.

[0068] It should be noted that the metal sites on the surface of a metal catalyst can rapidly convert microwave energy into heat energy, causing certain locations on the catalyst to quickly rise to very high temperatures due to the immediacy of microwave heating, forming "microwave hotspots." When pollutant molecules in the air come into contact with these high-temperature "microwave hotspots," they react rapidly and are thus degraded.

[0069] In some embodiments, refer to Figure 3 As shown, the device body 100 has a third receiving cavity 140, which is connected to the air inlet 110 and the first receiving cavity 120 respectively. The third receiving cavity 140 is arranged along the height direction of the device body 100 and is used to receive the air entering the air inlet 110.

[0070] Specifically, by setting the third receiving cavity 140 along the height direction, the air can be evenly distributed in the vertical direction, so that when the air enters the first receiving cavity 120, it can flow evenly through the microwave electrodeless ultraviolet element 300, thereby improving the effect of ultraviolet light on the irradiation and decomposition of pollutants.

[0071] The third containment chamber 140 can also increase the residence time of air in the device, so that ultraviolet light and catalyst have more time to interact with pollutants in the air, thereby improving purification efficiency.

[0072] In some embodiments, refer to Figure 4 As shown, the first receiving cavity 120 is arranged around the periphery of the third receiving cavity 140, and there are multiple microwave electrodeless ultraviolet elements 300, which are evenly spaced within the first receiving cavity 120.

[0073] Understandably, since each microwave electrodeless ultraviolet element 300 is evenly spaced within the first receiving cavity 120, and since the first receiving cavity 120 is arranged around the periphery of the third receiving cavity 140, each microwave electrodeless ultraviolet element 300 is located around the periphery of the third receiving cavity 140. This ensures that the air entering the third receiving cavity 140 is irradiated with ultraviolet light from all directions, thereby improving the efficiency of ultraviolet light in killing and decomposing microorganisms and organic pollutants in the air.

[0074] The inclusion of multiple microwave electrodeless ultraviolet elements 300 increases the total output power of ultraviolet light, enabling pollutants in the air to be processed more quickly and thoroughly, thus improving the purification efficiency of the air purifier.

[0075] In some embodiments, refer to Figure 3 As shown, the air purification device also includes a fixing member 600, which is disposed in the first receiving cavity 120, and each microwave electrodeless ultraviolet element 300 is disposed on the fixing member 600.

[0076] Specifically, the fastener 600 provides a stable support structure that can firmly fix the microwave electrodeless ultraviolet element 300, preventing it from moving due to vibration or other external forces during operation. This helps maintain the correct position and angle of the microwave electrodeless ultraviolet element 300 and ensures its effective operation.

[0077] In some embodiments, refer to Figure 3 As shown, the fixture 600 has multiple mounting holes 610, and each microwave electrodeless ultraviolet component 300 is inserted into the fixture 600 through the mounting holes 610.

[0078] Understandably, by providing mounting holes 610, the microwave electrodeless ultraviolet element 300 is inserted into the mounting holes 610, which improves the installation efficiency of the microwave electrodeless ultraviolet element 300 and facilitates replacement. Moreover, the mounting holes 610 provide clear positioning points, ensuring that each microwave electrodeless ultraviolet element 300 can be accurately installed in the predetermined position, which helps to maintain the uniform distribution of ultraviolet light and improve purification efficiency.

[0079] Mounting hole 610 provides additional support and fixation, preventing the microwave electrodeless ultraviolet component 300 from loosening or shifting due to vibration or external force during operation, thus helping to maintain the stability and reliability of the device.

[0080] In some embodiments, refer to Figure 3 As shown, the air purification device also includes a microwave component 200, which is disposed on the device body 100 and is used to generate microwaves.

[0081] The microwave electrodeless ultraviolet element 300 receives microwaves to generate ultraviolet light, and the catalyst element 400 receives microwaves to form microwave hot spots within the catalyst element 400.

[0082] The microwave component 200 generates microwaves, which are the energy source for the microwave electrodeless ultraviolet element 300 and the catalyst 400 to perform their purification functions. By providing microwave energy, the microwave component 200 enables the microwave electrodeless ultraviolet element 300 and the catalyst 400 to operate efficiently, thereby improving the air purification effect of the entire device.

[0083] Specifically, the microwave electrodeless ultraviolet element 300 receives microwaves and generates ultraviolet light. The ultraviolet light can decompose pollutants in the air, generating intermediate products and causing oxygen and water in the air to form reactive oxygen species. The catalyst element 400 receives microwaves to form microwave hotspots within the catalyst element 400, and under the action of reactive oxygen species, the intermediate products and unreacted pollutants can be completely mineralized into water and carbon dioxide.

[0084] In some embodiments, refer to Figure 3 As shown, the microwave assembly 200 includes a microwave component 210 and a power supply component 220. The microwave component 210 is electrically connected to the power supply component 220, and the microwave component 210 is used to generate microwaves.

[0085] Understandably, the power supply unit 220 can efficiently transfer electrical energy to the microwave unit 210, ensuring that the microwave unit 210 can stably generate the required microwave energy, which helps to improve the overall energy efficiency of the device.

[0086] It should be noted that the power supply component 220 can be designed with an adjustment function, allowing precise control of the output power of the microwave component 210. This enables the device to adjust the microwave intensity according to different purification requirements, thereby improving the purification effect. For example, the power supply component 220 can be a transformer.

[0087] In some embodiments, refer to Figure 3 As shown, the device body 100 has a fourth receiving cavity 150, which is connected to the first receiving cavity 120 and the second receiving cavity 130 respectively, and the microwave component 210 is disposed in the fourth receiving cavity 150.

[0088] Specifically, by setting up a fourth receiving cavity 150, an installation position is provided for the microwave component 210. The fourth receiving cavity 150 is connected to the first receiving cavity 120 and the second receiving cavity 130 respectively, which can better control the propagation path and distribution of microwaves, so that microwave energy can be transferred to the microwave electrodeless ultraviolet component 300 and the catalyst component 400 in the first receiving cavity 120 and the second receiving cavity 130, thereby achieving a purification effect.

[0089] In some embodiments, refer to Figure 3As shown, the air purification device also includes a first shield 700, which is disposed between the first receiving cavity 120 and the air inlet 110. The first shield 700 is used to prevent microwaves in the first receiving cavity 120 from leaking into the outside air through the air inlet 110.

[0090] Understandably, the first shield 700 can prevent microwaves in the first receiving cavity 120 from leaking into the outside air through the air inlet 110, thereby protecting the user and the surrounding environment from the effects of microwave radiation.

[0091] In a specific implementation, the first shielding element 700 can be a double shielding layer. The first shielding element 700 can shield microwaves but allow air to pass through. That is, the air entering the air inlet 110 can enter the first receiving cavity 120 through the double shielding layer to achieve ultraviolet decomposition.

[0092] In some embodiments, refer to Figure 3 As shown, the air purification device also includes a second shield 800, which is disposed between the air inlet 110 and the fourth receiving cavity 150. The second shield 800 is used to prevent microwaves in the fourth receiving cavity 150 from leaking into the outside air through the air inlet 110.

[0093] It should be noted that the second shield 800 can prevent microwaves in the fourth receiving cavity 150 from leaking into the outside air through the air inlet 110, thereby protecting the user and the surrounding environment from the effects of microwave radiation.

[0094] In specific implementation, the second shielding component 800 can be a metal plate or other shielding components, and the embodiments of this application do not impose too many restrictions on it.

[0095] In some embodiments, refer to Figure 3 As shown, the device body 100 is also equipped with a detection element and a controller, and both the detection element and the microwave component 200 are electrically connected to the controller.

[0096] The detection element is used to detect whether there is a person within a preset distance of the device body 100. When there is a person within the preset distance, the controller controls the microwave generated by the microwave component 200 to be less than the preset value.

[0097] Understandably, by setting a preset distance for the detection device body 100 to detect whether there is a person, when someone approaches, the controller can control the microwave component 200 to reduce the microwave intensity, thereby weakening the microwave entering the first receiving cavity 120, reducing the ozone generated by the microwave electrodeless ultraviolet component 300, and the generated ozone can be completely catalyzed and oxidized by the catalytic component, thereby preventing ozone from entering the air and causing harm to the human body.

[0098] When no one is within a preset distance of the device body 100, the controller can control the microwave component 200 to increase the microwave intensity, thereby enhancing the microwave entering the first receiving cavity 120. The ozone generated by the microwave electrodeless ultraviolet component 300 increases, and some of the ozone that is not catalyzed and oxidized by the catalyst component 400 can enter the air to disinfect the surrounding environment.

[0099] It should be noted that the air purification device provided in this application can adjust the purification intensity by changing the power of the microwave component 200, thus allowing for three purification modes: strong purification, mild purification, and weak purification. The strong purification mode is suitable for high-intensity purification in special situations, such as hospital wards, where it can be periodically activated for disinfection. The mild purification mode is primarily suitable for normally purified environments. The weak purification mode is suitable for individuals sensitive to negative oxygen ions. The mild and weak purification modes can be manually activated.

[0100] In practical implementation, the detection device can be an infrared sensor. The operation process for the high-powered purification mode can be as follows: With the device in standby mode, manually activate the high-powered purification mode. The device will immediately switch to a mild purification mode and simultaneously activate the alarm, urging people in the space to evacuate. After a few minutes, perform an infrared scan of the space. If people are present, continue with the mild purification mode. When the infrared scan confirms no one is present, activate the high-powered purification mode and scan the space at intervals. However, if people are detected during the interval scan, switch back to mild purification and activate the alarm.

[0101] When used in factory workshops and operating rooms for the oxidation of pollutants and the elimination of bacteria and viruses, the air purification device can operate in a high-power purification mode, requiring personnel evacuation to achieve comprehensive purification of the ambient air. In this mode, the fan 900 operates at a high speed, generating a large volume of purified air. The polluted gas enters the third receiving chamber 140 from the air inlet 110, and then evenly enters the first receiving chamber 120. The microwave component 200, with its high power, generates a high-intensity microwave field that sequentially enters the first receiving chamber 120 and the second receiving chamber 130. This causes the microwave electrodeless ultraviolet component 300 to ionize in the high-energy microwave field, producing ultraviolet light and heating the catalytic component 400. The purified gas is then evenly released into the external environment through the exhaust port 160. The released air contains ozone, which continues to kill bacteria and viruses in the environment. Through a period of gas exchange, the goal of powerful purification is achieved.

[0102] When used for indoor purification and mild sterilization of trace volatile organic compounds (VOCs), the air purification device can operate in a mild purification mode. Polluted air enters the third containment chamber 140 through the air inlet 110, and then evenly enters the first containment chamber 120. The microwave component 200, with moderate power, generates a moderate-intensity microwave field that sequentially enters the first containment chamber 120 and the second containment chamber 130. The microwave electrodeless ultraviolet element 300 ionizes in the microwave field to generate ultraviolet light, which heats the catalyst element 400. At this time, the amount of ozone generated by the ultraviolet light is small and completely decomposes within the catalyst element 400. Therefore, in this state, people in the ambient space do not need to evacuate.

[0103] When used for indoor purification of occasional trace amounts of pollutants, the air purification device can operate in a low-purification mode, with the fan 900 rotating at a slower speed to collect a smaller amount of polluted gas. The microwave component 200 has low power, generating a low-intensity microwave field that sequentially enters the first receiving cavity 120 and the second receiving cavity 130. The gas, after low-purification, is evenly released into the external environment through the exhaust port 160, achieving the purpose of low-purification through long-term, uninterrupted gas exchange.

[0104] The air purification device provided in this application can completely oxidize and decompose polluting gases in the space environment, converting a small amount of organic pollutants into H2O and CO2 (or CO), while disinfecting and sterilizing. It solves the problems of indoor air pollution and the spread of fungi, bacteria and viruses, and also has a certain removal effect on formaldehyde. It can be applied to air purification in confined spaces as well as to the purification of workshop environments that generate low concentrations of VOCs.

[0105] In some embodiments, refer to Figure 3 As shown, the air purification device also includes a fan 900, which is located at the air inlet 110.

[0106] Specifically, the fan 900 can effectively draw in outside air at the air inlet 110, enhancing airflow so that air can continuously and evenly enter the device for purification.

[0107] By increasing airflow speed, the fan 900 can help bring pollutants into the purification device for treatment more quickly, thereby improving overall purification efficiency and rapidly improving indoor air quality.

[0108] Those skilled in the art will understand that the air purification device provided in this application comprises a device body 100, a catalyst 400, and at least one microwave electrodeless ultraviolet (UV) element 300. The device body 100 has an air inlet 110 and at least one exhaust port 160, with the air inlet 110 for supplying air. The device body 100 contains a first receiving cavity 120 and a second receiving cavity 130 arranged sequentially along the airflow direction. The first receiving cavity 120 communicates with the air inlet 110, and the second receiving cavity 130 communicates with the first receiving cavity 120 and the exhaust port 160, thus forming an airflow channel. The microwave electrodeless UV element 300 is disposed within the first receiving cavity 120. The microwave electrodeless UV element 300 generates ultraviolet light, which can decompose pollutants in the air into intermediate products and cause oxygen and water in the air to form reactive oxygen species. The catalyst 400 is disposed within the second receiving cavity 130. The catalyst 400 forms microwave hotspots, which, under the action of reactive oxygen species, can completely mineralize the intermediate products into water and carbon dioxide, thereby improving the air purification effect.

[0109] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0110] It is understood that the various numerical designations used in the embodiments of this application are merely for descriptive convenience and are not intended to limit the scope of the embodiments of this application.

[0111] The technical solutions of this application have been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of this application is obviously not limited to these specific embodiments. Without departing from the principles of this application, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the scope of protection of this application.

Claims

1. An air purification device, characterized in that, include: The device body (100) is provided with an air inlet (110) and at least one exhaust port (160). The air inlet (110) is used to allow air to enter. The device body (100) has a first receiving cavity (120) and a second receiving cavity (130) arranged sequentially along the airflow direction. The first receiving cavity (120) is connected to the air inlet (110), and the second receiving cavity (130) is connected to the first receiving cavity (120) and the exhaust port (160). At least one microwave electrodeless ultraviolet element (300) is disposed in the first receiving cavity (120), the microwave electrodeless ultraviolet element (300) generates ultraviolet light to decompose pollutants in the air into intermediate products and to cause oxygen and water in the air to form reactive oxygen species; A catalyst (400) is disposed in the second receiving cavity (130), and a microwave hot spot is formed in the catalyst (400) to completely mineralize the intermediate product into water and carbon dioxide under the action of the active oxygen species.

2. The air purification device according to claim 1, characterized in that, The catalyst (400) includes a plurality of catalyst units, and the second receiving cavity (130) has a plurality of receiving areas (131), with each catalyst unit correspondingly disposed in the receiving area (131).

3. The air purification device according to claim 2, characterized in that, It also includes a support assembly (500), which includes a plurality of first support members (510) and a plurality of second support members (520). Each of the first support members (510) and each of the second support members (520) is disposed within the second receiving cavity (130). The first support members (510) and the second support members (520) have an included angle to divide the second receiving cavity (130) into a plurality of receiving areas (131).

4. The air purification device according to claim 2, characterized in that, The catalytic unit is a metal catalyst.

5. The air purification device according to any one of claims 1-4, characterized in that, The device body (100) has a third accommodating cavity (140), which is connected to the air inlet (110) and the first accommodating cavity (120) respectively. The third accommodating cavity (140) is arranged along the height direction of the device body (100) and is used to accommodate the air entering the air inlet (110).

6. The air purification device according to claim 5, characterized in that, The first receiving cavity (120) is arranged around the periphery of the third receiving cavity (140), and there are multiple microwave electrodeless ultraviolet elements (300), each of which is evenly spaced within the first receiving cavity (120).

7. The air purification device according to any one of claims 1-4, characterized in that, It also includes a fixing member (600), which is disposed in the first receiving cavity (120), and each of the microwave electrodeless ultraviolet components (300) is disposed on the fixing member (600).

8. The air purification device according to claim 7, characterized in that, The fixing member (600) has a plurality of mounting holes (610), and each of the microwave electrodeless ultraviolet components (300) is inserted into the fixing member (600) through the mounting holes (610).

9. The air purification device according to any one of claims 1-4, characterized in that, It also includes a microwave component (200) disposed on the device body (100) and the microwave component (200) is used to generate microwaves; The microwave electrodeless ultraviolet element (300) receives the microwaves to generate ultraviolet light, and the catalyst (400) receives the microwaves to form a microwave hotspot within the catalyst (400).

10. The air purification device according to claim 9, characterized in that, The microwave component (200) includes a microwave element (210) and a power supply element (220), the microwave element (210) being electrically connected to the power supply element (220), and the microwave element (210) being used to generate microwaves.

11. The air purification device according to claim 10, characterized in that, The device body (100) has a fourth receiving cavity (150), which is connected to the first receiving cavity (120) and the second receiving cavity (130) respectively, and the microwave component (210) is disposed in the fourth receiving cavity (150).

12. The air purification device according to claim 11, characterized in that, It also includes a first shield (700), which is disposed between the first receiving cavity (120) and the air inlet (110). The first shield (700) is used to prevent microwaves in the first receiving cavity (120) from leaking into the outside air through the air inlet (110).

13. The air purification device according to claim 11, characterized in that, It also includes a second shield (800), which is disposed between the air inlet (110) and the fourth receiving cavity (150). The second shield (800) is used to prevent microwaves in the fourth receiving cavity (150) from leaking into the outside air through the air inlet (110).

14. The air purification device according to claim 10, characterized in that, The device body (100) is also provided with a detection element and a controller, and the detection element and the microwave component (200) are both electrically connected to the controller; The detection element is used to detect whether there is a person within a preset distance of the device body (100). When there is a person within the preset distance, the controller controls the microwave generated by the microwave component (200) to be less than a preset value.

15. The air purification device according to any one of claims 1-4, characterized in that, It also includes a fan (900) which is disposed at the air inlet (110).

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