Air purification device, indoor unit and air conditioner

Abstract

The utility model provides an air purification device, an indoor unit and an air conditioner, the air purification device comprises an adsorption filter screen, a driving part and a high-voltage electrode, the adsorption filter screen is configured to adsorb pollutants in air, an electrocatalyst is loaded on the adsorption filter screen, the driving part comprises a driving mechanism and a rotating shaft, and the driving mechanism is configured to drive the rotating shaft to rotate; the rotating shaft is configured to drive the adsorption filter screen to rotate, the rotating shaft has conductivity and is grounded, a discharge gap is formed between the high-voltage electrode and the rotating shaft, the adsorption filter screen circularly passes through the discharge gap, and a high-voltage electric field is formed between the high-voltage electrode and the rotating shaft so as to decompose pollutants adsorbed on the adsorption filter screen.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioning equipment, in particular to an air purification device, an indoor unit and an air conditioner. Background Art

[0002] An air conditioner includes an indoor unit and an outdoor unit. Some indoor units are configured with an air purification device (such as an air purifier, etc.). The air purification device is usually arranged at the air outlet, air return opening or internal passage of the indoor unit. The air purification device is configured to process the air flowing through it to achieve the effect of purifying the air. The air purification module usually uses an adsorption component to adsorb pollutants in the air, such as volatile organic compounds (VOCs), including toluene, xylene, formaldehyde, alcohols, etc.

[0003] The main materials of the adsorption component are activated carbon, molecular sieve, zeolite, ceramics, etc. These materials are all hard structures. In order to reduce the consumption of consumables and the service life of the adsorption material, when the adsorption material is used, the desorption and regeneration treatment of the saturated part is considered at the same time. In order to realize the functions of adsorption and desorption at the same time, limited by the material properties, the adsorption material is generally designed as a circular rotating wheel structure. The rotating wheel type adsorption component has the following disadvantages:

[0004] (1) The adsorption rotating wheel mainly functions to adsorb VOCs. The adsorbed VOCs need to be desorbed by heating, resulting in high energy consumption;

[0005] (2) The structure of the adsorption rotating wheel is complex, which is divided into an adsorption area, a desorption area and a cooling area. It is necessary to set up more air duct branches and fire prevention measures, and the sealing requirements during the operation of the rotating wheel are also relatively high, resulting in a relatively high equipment failure rate and cumbersome equipment maintenance;

[0006] (3) Limited by its structural shape, it cannot be applied to flat air outlets or air return openings of equipment such as air duct machines, resulting in low space utilization rate.

[0007] The above information disclosed in this background art is only used to increase the understanding of the background art of the present application. Therefore, it may include prior art that is not known to those of ordinary skill in the art. Summary of the Invention

[0008] In view of the problems pointed out in the background art, the utility model provides an air purification device, an indoor unit and an air conditioner, which load an electrocatalyst on a flexible adsorption filter mesh, and directly decompose the VOCs adsorbed on the filter mesh by the action of plasma and the electrocatalyst, without going through desorption and post-treatment, with a simple structure, high efficiency, and improved air purification effect.

[0009] On the one hand, an air purification device is provided, which includes an adsorption filter screen, a driving part, and a high-voltage electrode. The adsorption filter screen is configured to adsorb pollutants in the air, and an electrocatalyst is loaded on the adsorption filter screen. The driving part includes a driving mechanism and a rotating shaft. The driving mechanism is configured to drive the rotating shaft to rotate, and the rotating shaft is configured to drive the adsorption filter screen to rotate. The rotating shaft has electrical conductivity and is grounded. A discharge gap is formed between the high-voltage electrode and the rotating shaft, and the adsorption filter screen circulates through the discharge gap. A high-voltage electric field is formed between the high-voltage electrode and the rotating shaft to decompose the pollutants adsorbed on the adsorption filter screen.

[0010] On the other hand, an indoor unit is provided, which includes a housing. The housing includes an air outlet, an air return opening, and a passage. The passage communicates the air outlet and the air return opening.

[0011] The indoor unit further includes the air purification device as described above, and the air purification device is disposed at at least one of the air outlet, the air return opening, and the passage.

[0012] On yet another hand, an air conditioner is provided, which includes an indoor unit and an outdoor unit. The indoor unit is connected to the outdoor unit, and the indoor unit is the indoor unit as described above.

[0013] After reading the specific embodiments of the present invention in conjunction with the accompanying drawings, other features and advantages of the present invention will become clearer. Description of the Drawings

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0015] Figure 1 A structural diagram of a flexible adsorption filter screen according to some embodiments;

[0016] Figure 2 A structural diagram of a flexible adsorption filter screen material according to some embodiments;

[0017] Figure 3 A cross-sectional view of a flexible adsorption filter screen according to some embodiments;

[0018] Figure 4 Another structural diagram of a flexible adsorption filter screen according to some embodiments;

[0019] Figure 5 Yet another structural diagram of a flexible adsorption filter screen according to some embodiments;

[0020] Figure 6A structural diagram of an air purification device according to some embodiments;

[0021] Figure 7 A partial structural diagram of an air purification device according to some embodiments;

[0022] Figure 8 Another structural diagram of an air purification device according to some embodiments;

[0023] Figure 9 Another partial structural diagram of an air purification device according to some embodiments;

[0024] Figure 10 A structural diagram of an air purification device according to some embodiments;

[0025] Figure 11 An exploded view of an air purification device according to some embodiments;

[0026] Figure 12 A partial cross-sectional view of an air purification device according to some embodiments;

[0027] Figure 13 A cross-sectional view of an air purification device according to some embodiments;

[0028] Figure 14 Another cross-sectional view of an air purification device according to some embodiments

[0029] Figure 15 A cross-sectional view of a high-voltage electrode according to some embodiments;

[0030] Figure 16 A structural diagram of an insulating fixing seat according to some embodiments;

[0031] Figure 17 A structural diagram of a drive shaft according to some embodiments;

[0032] Figure 18 A structural diagram of a first side plate according to some embodiments. Detailed implementation manners

[0033] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0034] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0035] The terms "first" and "second" are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, unless otherwise specified, the meaning of "a plurality" is two or more.

[0036] In the description of the present application, it should be noted that, unless otherwise clearly specified and defined, the terms "mounted", "connected" and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0037] In the present utility model, unless otherwise clearly specified and defined, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely means that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely means that the horizontal height of the first feature is lower than that of the second feature.

[0038] The following disclosure provides many different embodiments or examples for implementing different structures of the present utility model. To simplify the disclosure of the present utility model, components and settings of specific examples are described below. Of course, they are merely examples and are not intended to limit the present utility model. In addition, the present utility model may repeat reference numerals and / or reference letters in different examples. Such repetition is for the purpose of simplification and clarity and does not in itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present utility model provides examples of various specific processes and materials, but those of ordinary skill in the art may be aware of the application of other processes and / or the use of other materials.

[0039] The following will clearly and completely describe some embodiments of the present disclosure in conjunction with the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments provided by the present disclosure fall within the scope of protection of the present disclosure.

[0040] Unless the context requires otherwise, throughout the specification and claims, the term "comprise" and its other forms, such as the third-person singular form "comprises" and the present participle form "comprising", are interpreted as open and inclusive, that is, "including, but not limited to". In the description of the specification, the terms "one embodiment", "some embodiments", "exemplary embodiments", "example", "specific example" or "some examples", etc. are intended to indicate that the specific features, structures, materials or characteristics related to the embodiment or example are included in at least one embodiment or example of the present disclosure. The schematic representations of the above terms are not necessarily directed to the same embodiment or example. In addition, the specific features, structures, materials or characteristics may be included in any one or more embodiments or examples in any appropriate manner.

[0041] Hereinafter, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the embodiments of the present disclosure, unless otherwise specified, the meaning of "a plurality" is two or more.

[0042] In describing some embodiments, the expressions "coupled" and "connected" and their derivatives may be used. The term "connected" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral one; it can be directly connected or indirectly connected through an intermediate medium. The term "coupled" indicates that two or more components have direct physical contact or electrical contact. The term "coupled" or "communicatively coupled" may also mean that two or more components do not have direct contact with each other, but still cooperate or interact with each other. The embodiments disclosed herein are not necessarily limited to the content herein.

[0043] "At least one of A, B, and C" has the same meaning as "at least one of A, B, or C", and both include the following combinations of A, B, and C: only A, only B, only C, the combination of A and B, the combination of A and C, the combination of B and C, and the combination of A, B, and C.

[0044] "A and / or B" includes the following three combinations: only A, only B, and the combination of A and B.

[0045] The use of "suitable for" or "configured to" herein means open and inclusive language, which does not exclude devices that are suitable for or configured to perform additional tasks or steps.

[0046] As used herein, "about", "substantially", or "approximate" includes the stated value and the average value within an acceptable deviation range of the specific value, where the acceptable deviation range is determined by a person of ordinary skill in the art considering the measurement being discussed and the error associated with the measurement of a particular quantity (i.e., the limitations of the measurement system).

[0047] As used herein, "parallel", "perpendicular", "equal" include the stated situation and situations similar to the stated situation, and the range of the similar situations is within an acceptable deviation range, where the acceptable deviation range is determined by a person of ordinary skill in the art considering the measurement being discussed and the error associated with the measurement of a particular quantity (i.e., the limitations of the measurement system). For example, "parallel" includes absolute parallelism and approximate parallelism, where the acceptable deviation range of approximate parallelism can be, for example, within 5° deviation; "perpendicular" includes absolute perpendicularity and approximate perpendicularity, where the acceptable deviation range of approximate perpendicularity can also be, for example, within 5° deviation. "Equal" includes absolute equality and approximate equality, where the acceptable deviation range of approximate equality can be, for example, that the difference between the two equal ones is less than or equal to 5% of either one of them.

[0048] Air purification devices usually adsorb pollutants in the air through adsorption components, such as volatile organic compounds (VOCs). VOCs in the air include toluene, xylene, formaldehyde, alcohols, etc.

[0049] The adsorption components of air purification devices include materials such as activated carbon, molecular sieves, zeolites, and ceramics, and these materials are all rigid materials. During the process of adsorbing pollutants in the air, the adsorption material may reach a state of adsorption saturation. In order to ensure the adsorption effect of the adsorption material, reduce the usage amount of the adsorption material, and increase the service life of the adsorption material, the air purification device also needs to perform desorption and regeneration treatment on the saturated part of the adsorption material. In order to simultaneously achieve the functions of adsorbing and desorbing pollutants, due to the hard property of the adsorption material, the adsorption material is generally designed as a circular rotating wheel structure. However, the rotating wheel type adsorption component cannot be applied to flat air outlets or return air outlets of equipment such as air duct machines, with low adaptability and reduced space utilization rate of air conditioning equipment such as air duct machines.

[0050] To solve the above problems, some embodiments of the present disclosure provide an air conditioner, and the indoor unit of the air conditioner is provided with an air purification device. The air purification device uses a flexible adsorption filter as the adsorption material. The flexible adsorption material includes an adsorption area and a regeneration area, and the adsorption area and the regeneration area can be continuously switched, thereby realizing the functions of adsorbing and desorbing pollutants. In addition, the flexible adsorption filter can form different usage forms according to different usage spaces. Thus, the problem that the hard adsorption material cannot rotate in a limited space, especially in a special-shaped space, is solved.

[0051] It should be noted that rigidity refers to a physical property that an object deforms when a force is applied and cannot return to its original shape by itself after the acting force is removed. Flexibility can be interpreted as flexibility, which is an object characteristic relative to rigidity. Flexibility means that an object deforms when a force is applied and cannot return to its original shape by itself after the acting force is removed.

[0052] [Air conditioner]

[0053] Some embodiments of the present disclosure provide an air conditioner.

[0054] The air conditioner executes the refrigeration and heating cycle of the air conditioner by using a compressor, a condenser, an expansion valve, and an evaporator to form a refrigerant circuit. The refrigeration and heating cycle includes a series of processes, involving compression, condensation, expansion, and evaporation, so as to cool or heat the indoor space.

[0055] In some embodiments, the air conditioner includes an outdoor unit.

[0056] In some embodiments, the air conditioner further includes an indoor unit. The indoor unit is connected to the outdoor unit.

[0057] In some embodiments, the outdoor unit includes a compressor. The compressor is configured to compress the refrigerant such that the low-pressure refrigerant is compressed to form a high-pressure refrigerant. The low-temperature and low-pressure refrigerant enters the compressor, is compressed by the compressor into a refrigerant gas in a high-temperature and high-pressure state, and the compressed refrigerant gas is discharged. The discharged refrigerant gas flows into the condenser. The condenser condenses the compressed refrigerant into a liquid phase, and heat is released to the surrounding environment through the condensation process.

[0058] In some embodiments, the outdoor unit further includes a first heat exchanger (outdoor heat exchanger). The first heat exchanger is configured to exchange heat between the outdoor air and the refrigerant flowing through the first heat exchanger.

[0059] In some embodiments, the indoor unit includes a second heat exchanger (indoor heat exchanger). The second heat exchanger is configured to exchange heat between the indoor air and the refrigerant flowing through the second heat exchanger.

[0060] In some embodiments, the air conditioner further includes an expansion valve, which can be provided in the indoor unit or the outdoor unit. The expansion valve expands the high-temperature and high-pressure liquid-phase refrigerant formed by condensation in the condenser into a low-pressure liquid-phase refrigerant. The evaporator evaporates the refrigerant expanded in the expansion valve and returns the refrigerant gas in a low-temperature and low-pressure state to the compressor. The evaporator can achieve a refrigeration effect by exchanging heat with the material to be cooled by utilizing the latent heat of evaporation of the refrigerant. During the entire cycle, the air conditioner can adjust the temperature of the indoor space.

[0061] The second heat exchanger and the first heat exchanger function as a condenser or an evaporator. When the second heat exchanger functions as a condenser, the air conditioner operates in the heating mode. When the second heat exchanger functions as an evaporator, the air conditioner operates in the cooling mode.

[0062] In some embodiments, the outdoor unit further includes a four-way valve, which is connected within the refrigerant circuit. The four-way valve is configured to switch the flow direction of the refrigerant in the refrigerant circuit so that the air conditioner operates in the cooling mode or the heating mode. The refrigeration working principle of the air conditioner is as follows: When the compressor operates, the second heat exchanger (in the indoor unit, which is an evaporator at this time) is in an ultra-low pressure state. The liquid refrigerant in the second heat exchanger rapidly evaporates and absorbs heat. The air blown by the fan in the indoor unit passes through the coils of the second heat exchanger, cools down, and then blows cold air into the room. After the refrigerant evaporates and vaporizes, it is pressurized by the compressor and condenses into a liquid state in the high-pressure environment of the first heat exchanger (in the outdoor unit, which is a condenser at this time), releasing heat. Through the fan of the outdoor unit, the heat is dissipated into the atmosphere. In this way, the refrigeration effect is achieved through such a cycle.

[0063] The heating working principle of the air conditioner includes: the gaseous refrigerant is pressurized by the compressor to become a high-temperature and high-pressure gas, enters the second heat exchanger (which is the condenser at this time), condenses and liquefies to release heat, becomes a liquid, and heats the indoor air, thereby achieving the purpose of raising the indoor temperature. The liquid refrigerant is depressurized by the throttling device and enters the first heat exchanger (which is the evaporator at this time), evaporates and vaporizes to absorb heat, becomes a gas, and absorbs the heat of the outdoor air (the outdoor air becomes colder), becomes a gaseous refrigerant, and enters the compressor again to start the next cycle.

[0064] [Indoor unit]

[0065] In some embodiments, the indoor unit further includes a third housing, and an indoor air outlet and an indoor air return opening are provided on the third housing. A air supply channel is provided in the third housing, the air supply channel communicates with the indoor air outlet and the indoor air return opening, and a second heat exchanger and a blower are provided in the air supply channel.

[0066] Under the action of the blower, the indoor air enters the air supply channel through the indoor air return opening and exchanges heat with the second heat exchanger. During the heat exchange process, the temperature of the indoor air rises or falls. The heated air then flows into the room through the indoor air outlet, thereby realizing the adjustment of the indoor air temperature.

[0067] In some embodiments, the indoor unit further includes an air purification device, and the air purification device is provided in at least one of the indoor air outlet, the indoor air return opening, and the air supply channel. The air purification device is configured to purify the air flowing through it to improve the indoor air quality.

[0068] The air purification device can purify pollutants in the air, such as VOCs. Volatile organic compounds include toluene, xylene, formaldehyde, alcohols, etc.

[0069] [Air purification device]

[0070] In some embodiments, referring to Figure 6 , the air purification device includes an adsorption filter 110. Figure 1 FIG. is a structural diagram of the adsorption filter 110. The adsorption filter 110 is configured to adsorb pollutants in the air, such as VOCs. Referring to Figure 2 , an electrocatalyst 130 is loaded on the adsorption filter.

[0071] The air purification device includes a decomposition chamber 310, the adsorption filter 110 passes through the decomposition chamber 310, the part of the adsorption filter 110 located inside the decomposition chamber 310 is the regeneration area 160, the part located outside the decomposition chamber 310 is the adsorption area 150, and the air flows through the adsorption area 150.

[0072] The air purification device includes a driving part 1, which is configured to drive the adsorption filter 110 to rotate. The adsorption filter 110 circulates through the decomposition chamber 310, and the adsorption area 150 and the regeneration area 160 are continuously switched. The adsorption filter 110 is regenerated in the decomposition chamber 310 and is used cyclically.

[0073] The driving part 1 includes a driving mechanism and a rotating shaft 230. The driving mechanism is configured to drive the rotating shaft 230 to rotate, and the rotating shaft 230 is configured to drive the adsorption filter 110 to rotate. The rotating shaft 230 has electrical conductivity and is grounded.

[0074] The air purification device includes a high-voltage electrode 630. A discharge gap is formed between the high-voltage electrode 630 and the rotating shaft 230. The adsorption filter 110 circulates through the discharge gap. A high-voltage electric field is formed between the high-voltage electrode 630 and the rotating shaft 230 to decompose the pollutants adsorbed on the adsorption filter 110.

[0075] The air purification device of the present disclosure uses the plasma method. The adsorption filter 110 is loaded with an electrocatalyst, and the VOC adsorbed on the filter is directly decomposed by the action of plasma and the electrocatalyst, without passing through desorption and post-treatment. The structure is simple, the efficiency is high, and the air purification effect is improved.

[0076] The electrocatalyst is made of skeletal nickel, nickel boride, tungsten carbide, sodium tungsten bronze, spinel-type and scheelite-type semiconductor oxides, and has high catalytic efficiency.

[0077] A high-frequency and high-voltage alternating electric field is formed between the high-voltage electrode 630 and the rotating shaft 230, and the peak-to-peak voltage can reach 30000 V / cm. A discharge gap is formed between the high-voltage electrode 630 and the rotating shaft 230, and the adsorption filter 110 circulates through the discharge gap. When the adsorption filter 110 with VOC passes through the discharge gap, the chemical bonds of some VOC molecules are directly broken by the high-voltage electric field and react under the action of the electrocatalyst to generate carbon dioxide and water.

[0078] In addition, the high-frequency and high-voltage alternating electric field can also directly ionize water vapor to generate free hydroxyl radicals and reactive oxygen with extremely strong oxidation ability, which undergo an oxidation reaction to completely decompose the VOC adsorbed on the filter into carbon dioxide and water. Therefore, after the adsorption filter 110 passes through the discharge gap, the adsorbed VOC inside will be decomposed, and the adsorption filter 110 is regenerated and returns to the adsorption area 150 for adsorption again.

[0079] [Adsorption filter of air purification device]

[0080] In some embodiments, the adsorption filter 110 is a flexible adsorption filter, and the flexible adsorption filter forms different usage forms according to different usage spaces. Refer to Figure 1 or Figure 4 orFigure 5 , it solves the problem that the rigid adsorption material cannot be effectively transmitted in a limited space, especially in a special-shaped space.

[0081] In some embodiments, the adsorption filter screen 110 is made of a flexible adsorption material 140. Refer to Figure 2 , the flexible adsorption material 140 is a porous adsorption material, which can be a flexible adsorption material with a high specific surface area and high flexibility, such as activated carbon fiber felt, activated carbon fiber cotton, carbon fiber cloth, etc. The electrocatalyst 130 is loaded on the flexible adsorption material 140.

[0082] In some embodiments, the adsorption filter screen 110 is made by cutting and sewing the flexible adsorption material 140. According to the size of the installation space, the adsorption filter screen 110 can be made into different shapes and sizes to meet different installation requirements.

[0083] In some embodiments, the head and tail of the flexible adsorption material 140 are sewn together to form a closed annular structure. Refer to Figure 1 , the seam mark of the head and tail sewing of the flexible adsorption material 140 is 180.

[0084] The adsorption filter screen 110 has an annular conveyor belt structure, which directionally conveys the VOC adsorbed thereon, adsorbs the VOC and conveys it to a specific area for desorption or decomposition, and is used repeatedly in a cycle.

[0085] In some embodiments, the flexible adsorption material 140 is a porous material, with burrs at the edge and is prone to deformation when pulled by an external force.

[0086] Therefore, refer to Figure 1 and Figure 3 , a reinforcing part 120 is arranged at the cross-sectional edge of the adsorption filter screen 110. The structural strength of the adsorption filter screen 110 is improved through the reinforcing part 120.

[0087] In some embodiments, rubber sealing is performed at the cross-sectional edge of the adsorption filter screen 110 to form the reinforcing part 120, which is convenient for processing and manufacturing.

[0088] In some embodiments, refer to Figure 3 , reinforcing parts 120 are arranged at the opposite cross-sectional edges of the adsorption filter screen 110. The arrangement of the two reinforcing parts 120, on the one hand, improves the structural strength of the adsorption filter screen 110; on the other hand, it is used to cooperate with the rotating shaft 230, and the cooperation between the rotating shaft 230 and the reinforcing part 120 is utilized to drive the adsorption filter screen 110 to rotate.

[0089] In some embodiments, refer to Figure 1 or Figure 4 or Figure 5, the adsorption filter screen 110 is arranged in a surrounding manner to form multiple adsorption zones 150 for contacting with air. The air flows through multiple adsorption zones 150 along its flow direction, realizing multiple adsorptions of VOCs and improving the air purification effect.

[0090] When the air containing VOCs flows through the adsorption filter screen 110, it first flows through the first-layer adsorption zone 150. The air contacts the windward surface of the first-layer adsorption zone 150. The adsorption filter screen 110 is a microporous adsorption material. The micropores face different directions, and there are micropores facing the windward side and micropores facing the leeward side. A part of the VOCs in the air is adsorbed into the micropores facing the windward side and will not easily fall off from the adsorption zone 150. The remaining unadsorbed VOCs continue to flow with the air to the windward side of the second-layer adsorption zone 150. The micropores facing the windward side on the second-layer adsorption zone 150 perform secondary adsorption on the VOCs in the air. And so on. As the air flows through multiple adsorption zones 150 in sequence, multiple adsorptions of VOCs are realized, thereby improving the adsorption effect of VOCs and the air purification effect.

[0091] Since the windward side and the leeward side are opposite in the direction of wind passing through with respect to the adsorption filter screen 110, the residual VOCs can be adsorbed more effectively, thereby improving the adsorption effect.

[0092] In some embodiments, referring to Figure 1 or Figure 4 or Figure 5 , the adsorption filter screen 110 has a closed annular structure. In this way, the adsorption filter screen 110 can rotate cyclically under the drive of the drive unit 1, so as to realize the continuous conversion between the adsorption zone 150 and the regeneration zone 160, realize simultaneous on-line purification and desorption regeneration, and improve the adsorption capacity of the adsorption filter screen 110.

[0093] In some embodiments, referring to Figure 1 and Figure 3 , the adsorption filter screen 110 has a closed annular structure in the shape of a straight line. The adsorption filter screen 110 forms two adsorption zones 150, denoted as the adsorption zone 150A and the second-layer adsorption zone 150B. The two adsorption zones 150 extend in a direction perpendicular to the air flow. The two adsorption zones 150 are arranged at intervals along the air flow direction.

[0094] The two adsorption zones 150 are arc-shaped and transitionally connected. One end forms an arc-shaped first end 171 and the other end forms an arc-shaped second end 172. The first end 171 and the second end 172 are configured to cooperate with the driving device to drive the adsorption filter screen 110 to rotate.

[0095] Referring to Figure 6 , the air containing VOCs flows through the adsorption zone 150A and the adsorption zone 150B in sequence, realizing the secondary adsorption of VOCs.

[0096] In some embodiments, reference Figure 4 The adsorption filter 110 is a circular closed ring structure, and the air can diffuse from the inside of the circular structure to the outside, or from the outside to the inside.

[0097] In some embodiments, the adsorption filter 110 is in a special-shaped closed ring structure. The adsorption filter 110 is turned under the action of the rotating shaft 230 and bent to form a closed ring structure of different shapes, which increases the contact area between the air and the adsorption filter 110 in a limited space and improves the VOC adsorption effect.

[0098] For example, refer to Figure 5 The adsorption filter 110 is an L-shaped closed ring structure. The air flows from one side of the L-shaped closed ring structure to the other side, and passes through the two adsorption areas 150 in sequence, thereby improving the VOC adsorption effect.

[0099] In some embodiments, the manufacturing process of the adsorption filter 110 is as follows:

[0100] According to the VOC treatment efficiency and wind resistance requirements, suitable activated carbon fiber felt is selected, the thickness is usually 3-10mm, and high temperature activation is performed at a set temperature (e.g. 1000°C) and a set time (e.g. 30min);

[0101] Then, according to the requirements of the desorption regeneration process, a suitable catalyst, such as an electrocatalyst, is selected, the catalysts are mixed in proportion to form a catalyst solution, the activated carbon fiber felt is ultrasonically immersed in the catalyst solution for a set time (e.g., 30 minutes), and then taken out and dried;

[0102] Then, high-temperature sintering is performed according to the catalyst's tolerance temperature, and after cooling, a flexible carbon fiber adsorption material with the catalyst is formed;

[0103] Then cut the carbon fiber felt according to the required space size requirements, and splice and sew the cut ends to form a splicing seam. Figure 1 , forming a ring-shaped adsorption filter 110;

[0104] Then, the end faces of both sides of the annular carbon fiber felt are packaged under the action of a glue coating machine to form a reinforcement part 120. At this point, the adsorption filter screen 110 is completed.

[0105] [Drive unit of air purification device]

[0106] In some embodiments, reference Figure 5 or Figure 6, the driving part 1 includes a driving shaft 210 and a driven shaft 220. The driving shaft 210 and the driven shaft 220 are collectively referred to as the rotating shaft 230. The adsorption filter screen 110 is provided with the driving shaft 210 and the driven shaft 220 at intervals along its rotation direction, and the adsorption filter screen 110 winds around the driving shaft 210 and the driven shaft 220.

[0107] Refer to Figure 5 , the adsorption filter screen 110 has a special-shaped closed annular structure, and the adsorption filter screen 110 winds around a plurality of rotating shafts 230 for turning and bending, and at least one of the rotating shafts 230 is a driving shaft, and the remaining rotating shafts 230 are driven shafts.

[0108] Refer to Figure 6 , the adsorption filter screen 110 has a straight-shaped closed annular structure, with a driving shaft 210 provided at one end and a driven shaft 220 provided at the other end of the adsorption filter screen 110.

[0109] Refer to Figure 17 , two spaced-apart limiting platforms 232 are provided in the axial direction of the rotating shaft 230. The limiting platforms 232 extend along the circumferential direction of the rotating shaft 230 and are annular convex platform structures. The adsorption filter screen 110 is located between the two limiting platforms 232, and the two limiting platforms 232 perform axial limiting on the adsorption filter screen 110.

[0110] The limiting platform 232 contacts the strengthening part 120 to drive the adsorption filter screen 110 to rotate.

[0111] In some embodiments, the limiting platform 232 contacts the strengthening part 120, and relying on the friction force therebetween, the adsorption filter screen 110 is driven to rotate synchronously by the rotation of the rotating shaft 230.

[0112] In some embodiments, a flexible gear is provided on the limiting platform 232, and a flexible rack is correspondingly provided on the strengthening part 120. The flexible gear meshes with the flexible rack, and the adsorption filter screen 110 is driven to rotate synchronously by the rotation of the rotating shaft 230.

[0113] [Decomposition Chamber of Air Purification Device]

[0114] In some embodiments, refer to Figure 6 , the adsorption filter screen 110 circulates through the decomposition chamber 310 under the drive of the driving part 1. The part of the adsorption filter screen 110 located inside the decomposition chamber 310 is the regeneration area 160, and the part located outside the decomposition chamber 310 is the adsorption area 150, and air flows through the adsorption area 150.

[0115] The decomposition chamber 310 is a closed cavity, and the adsorption filter screen 110 is regenerated inside the decomposition chamber 310.

[0116] In some embodiments, refer to Figure 5 Or Figure 6, the adsorption filter screen 110 has a closed annular structure, and at least one decomposition chamber 310 is arranged along the rotation direction of the closed annular structure, and the closed annular structure circulates through the decomposition chamber 310.

[0117] According to the extension direction of the adsorption filter screen 110, one decomposition chamber 310 or multiple decomposition chambers 310 are arranged. A high-voltage electrode 630 is arranged in the decomposition chamber 310 to improve the regeneration efficiency of the adsorption filter screen 110, thereby improving the air purification effect.

[0118] In some embodiments, referring to Figure 6 , the adsorption filter screen 110 has a closed annular structure in a straight shape. The adsorption filter screen 110 forms two adsorption zones 150, denoted as adsorption zone 150A and adsorption zone 150B. The two adsorption zones 150 are arranged at intervals along the air flow direction. One end of the two adsorption zones 150 forms an arc-shaped first end 171, and the other end forms an arc-shaped second end 172.

[0119] Closed chambers 320 are respectively arranged on the first end 171 and the second end 172. The closed annular structure circulates through the closed chambers 320, and at least one closed chamber 320 is a decomposition chamber 310 to realize the regeneration of the adsorption filter screen 110.

[0120] The decomposition chamber 310 and the closed chamber 320 play a sealing role to prevent polluted air from directly flowing to the air outlet 460 from the side without passing through the adsorption filter screen 110, so that the air flowing to the air outlet 460 is all the air adsorbed and filtered by the adsorption filter screen 110.

[0121] In some embodiments, referring to Figure 8 , both of the two closed chambers 320 are used as decomposition chambers 310, and high-voltage electrodes 630 are arranged in both of the two closed chambers 320. When the adsorption filter screen 110 circulates through the two decomposition chambers 310, both ends of the adsorption filter screen 110 can be regenerated simultaneously, improving the regeneration efficiency.

[0122] In some embodiments, according to the difference in VOC concentration between the air inlet and the air outlet, one of the two high-voltage electrodes 630 in the two decomposition chambers 310 is turned on or both are turned on simultaneously, reducing energy consumption while ensuring the regeneration efficiency and the purification effect.

[0123] [High-voltage electrode]

[0124] In some embodiments, referring to Figure 6 , the adsorption filter screen 110 has a closed annular structure in a straight shape. A decomposition chamber 310 is arranged at one end of the adsorption filter screen 110, and a closed chamber 320 is arranged at the other end. A high-voltage electrode 630 is arranged in the decomposition chamber 310.

[0125] Among the two rotating shafts 230 (including the driving shaft 210 and the driven shaft 220), one rotating shaft 230 (such as the driving shaft 210) close to the decomposition chamber 310 is conductive and grounded.

[0126] In some embodiments, referring to Figure 8 , the adsorption filter 110 has a linear closed annular structure. The decomposition chambers 310 are provided at both opposite ends of the adsorption filter 110. High-voltage electrodes 630 are provided in each decomposition chamber 310. Both rotating shafts 230 are conductive and grounded. A discharge gap is formed between the high-voltage electrode 630 and the adjacent rotating shaft 230.

[0127] In some embodiments, the rotating shaft 230 that needs to be grounded is made of conductive metal, such as aluminum alloy, stainless steel, copper, etc. The rotating shaft 230 and the housing 2 of the air purification device are simultaneously connected to the ground wire of the power supply.

[0128] For example, the driving shaft 210 is conductive and grounded. On the one hand, the driving shaft 210 provides power for the adsorption filter 110, and on the other hand, it also undergoes reliable grounding treatment.

[0129] In some embodiments, referring to Figure 7 , the air purification device is configured with a high-voltage power supply 640 for supplying power to the high-voltage electrode 630.

[0130] In some embodiments, referring to Figure 15 , the high-voltage electrode 630 includes a metal electrode 631 and an insulating medium 632 layer. The metal electrode 631 is connected to the high-voltage power supply 640, and the insulating medium 632 layer is wrapped around the outer periphery of the metal electrode 631.

[0131] The high-voltage electrode 630 includes a high-voltage wire 633, and the high-voltage wire 633 is connected to the high-voltage power supply 640.

[0132] The high-voltage electrode 630 includes silicone rubber 634, and the silicone rubber 634 is configured to seal the metal electrode 631 inside the insulating medium 632.

[0133] In some embodiments, the high-voltage electrode 630 is arranged in parallel with the rotating shaft 230, and a discharge gap is formed between the high-voltage electrode 630 and the rotating shaft 230.

[0134] The discharge gap is equivalent to the thickness of the adsorption filter 110, so as to facilitate the penetration of the adsorption filter 110 and ensure the decomposition effect on VOCs.

[0135] [Control unit of the air purification device]

[0136] In some embodiments, referring to Figure 6, sensors are respectively arranged at the air inlet and the air outlet of the air purification device, denoted as the inlet air sensor 810 and the outlet air sensor 820. The inlet air sensor 810 is configured to detect the VOC concentration at the air inlet, denoted as a. The outlet air sensor 820 is configured to detect the VOC concentration at the air outlet, denoted as b.

[0137] In some embodiments, referring to Figure 6 , a control unit 3 is arranged in the decomposition chamber 310, and the control unit 3 is configured to perform intelligent control on the air purification device.

[0138] The control unit 3 judges the saturation state of the adsorption filter 110 according to the VOC concentration value a on the inlet air side, the VOC concentration value b on the outlet air side, and the difference c between the inlet and outlet air VOC concentration values, and adjusts the release voltage of the high-voltage electrode 630 and the rotation speed of the adsorption filter 110, so as to avoid the reduction of the purification effect caused by the saturation of the filter in the adsorption area 150, and improve the regeneration efficiency and the air purification effect.

[0139] The control unit 3 controls the rotation speed of the adsorption filter 110 to control the residence time of the adsorption filter 110 in the decomposition chamber 310, so as to meet better regeneration requirements, and further improve the purification effect.

[0140] In some embodiments, after the air purification device is started, due to the unknown VOC concentration in the air and the saturation degree of the adsorption filter 110, the main goal is to reduce energy consumption. Therefore, the high-voltage power supply 640 is first turned off, that is, the high-voltage electrode 630 is turned off, and the drive shaft 210 is controlled to start rotating at the lowest speed.

[0141] When the air purification device is just started, the adsorption filter 110 and the sensor for detecting the VOC concentration operate unstably. Therefore, after an interval of time t1 (for example, 5 minutes), the control system 5 collects the VOC concentration a at the air inlet and the VOC concentration b at the air outlet again. The control system 5 calculates the difference c in the VOC concentration between the air inlet and the air outlet 4 = a - b. The control system 5 automatically controls the rotation speed of the drive shaft 210 and the output voltage of the high-voltage power supply 640 according to b and c.

[0142] When b < b1, it indicates that the VOC concentration at the air outlet is relatively low. At this time, the adsorption filter 110 is in a good working state and is fully capable of purifying the VOC in the air. Therefore, the control system 5 judges to maintain the existing state unchanged, that is, the high-voltage power supply 640 is turned off and the drive shaft 210 runs at the lowest speed.

[0143] When b1 < b < b2, it indicates that the VOC concentration at the air outlet slightly exceeds the limit. At this time, the adsorption filter 110 is in a slightly poor working state and is not sufficient to completely purify the VOC gas brought in by the air inlet. At this time, the control system 5 continues to judge the concentration difference c.

[0144] When c > c 限When the difference in VOC concentration between the air outlet and the air inlet is large at this time, it further indicates that the adsorption function of the adsorption filter 110 is good at this time. The reason why the VOC concentration b at the air outlet exceeds the limit is that the VOC concentration a at the air inlet is too high. At this time, in order to achieve a better adsorption effect, the control system 5 will control the speed of the drive shaft 210 to increase by one gear, accelerate the rotation speed of the adsorption filter, and then accelerate the contact between the adsorption filter and the VOC gas, thereby improving the adsorption efficiency.

[0145] After the speed of the drive shaft 210 is increased by one gear, after another t2 time (for example, 5 minutes), the control system 5 reads the concentration values b and c of VOC again, and automatically selects the corresponding control according to the values of b and c again.

[0146] If the control system 5 automatically determines that the rotation speed of the adsorption filter 110 has reached the maximum value, the control system 5 will automatically turn on the high-voltage power supply 640 and operate at the lowest output voltage to regenerate the adsorption filter 110.

[0147] When c < c 限 At this time, the difference between the VOC concentration a at the air inlet and the VOC concentration b at the air outlet is small, indicating that the adsorption performance of the adsorption filter 110 has decreased at this time and cannot meet the requirements of the purification efficiency. Therefore, the control system 5 controls to turn on the high-voltage power supply 640 and operate at the lowest output voltage to regenerate the adsorption filter 110.

[0148] After t3 time (for example, 5 minutes), the control system 5 reads the concentration values b and c of VOC again, and automatically selects the corresponding control according to the values of b and c again. If the VOC concentration b at the air outlet is still between b1 and b2 at this time, and c < c 限 , it indicates that the regeneration performance of the high-voltage electrode 630 cannot meet the requirements, then the output voltage of the high-voltage power supply 640 is increased by one gear, and the control system 5 will automatically judge whether the output voltage of the current high-voltage power supply 640 is the highest gear.

[0149] If not, continue to operate according to the previous steps. When the control system 5 determines that the high-voltage power supply 640 has reached the voltage upper limit, the control system 5 maintains the high-voltage power supply 640 to operate at the maximum output voltage and starts to reduce the speed of the drive shaft 210 to increase the residence time of the adsorption filter 110 in the decomposition chamber 310 and improve the regeneration effect of the adsorption filter.

[0150] When b > b2, the control system 5 determines that the current working state of the adsorption filter 110 is poor and can no longer effectively purify the VOC brought in by the air inlet 450. The control system 5 directly controls the high-voltage power supply 640 to operate at the maximum output voltage and the drive shaft 210 to operate at the maximum speed.

[0151] After t4 time (e.g., 5 min), the control system 5 collects data again. If b > b2 still holds, the control system 5 controls the high-voltage power supply 640 to operate at the maximum output voltage, and reduces the rotation speed of the drive shaft 210 by one gear until the rotation speed reaches the lowest gear. When the requirement still cannot be met, the control system 5 will automatically prompt the user that the current adsorption filter 110 needs to run the automatic cleaning mode. The user can choose whether to enter the self-cleaning mode. If the user selects "Yes", it will automatically enter the self-cleaning mode; if the user selects "No", it will continue to run in the current state.

[0152] In some embodiments, the air purification device has an automatic cleaning mode. After the control unit 3 enters the automatic cleaning mode, the blower of the air conditioner is turned off or the air inlet is closed, so that no air flows through the adsorption filter 110. The high-voltage power supply 640 operates at the highest output voltage, and the drive shaft 210 rotates at the lowest speed to decompose and regenerate the VOC adsorbed on the adsorption filter 110.

[0153] When the system detects that the adsorption filter 110 has rotated N (e.g., 3) cycles, the self-cleaning mode ends, the system shuts down, and waits for the user's next instruction.

[0154] [Ultraviolet lamp]

[0155] In some embodiments, referring to Figure 9 , the air purification device adopts a photoelectric method, that is, a method combining ultraviolet light and plasma. The adsorption filter 110 is loaded with photocatalyst and electrocatalyst, and the VOC adsorbed on the filter is directly decomposed without desorption and post-treatment. The structure is simple and the efficiency is high. The dual action of ultraviolet light and plasma further improves the air purification effect.

[0156] The photocatalyst 130 is mainly composed of titanium dioxide nanoparticles and doped with a certain proportion of platinum metal and palladium metal. The photocatalyst 130 is a substance that does not change itself under light irradiation but can promote chemical reactions.

[0157] Under the irradiation of ultraviolet light, the photocatalyst 130 can activate the oxygen and moisture adsorbed on the material surface, generate extremely strong oxidizing free hydroxyl groups and reactive oxygen species, and undergo an oxidation reaction to completely decompose the VOC adsorbed on the filter into carbon dioxide and water, thereby realizing the regeneration of the adsorption filter 110.

[0158] A high-voltage electrode 630 and an ultraviolet lamp 610 are arranged in the decomposition chamber 310. The rotating shaft 230 adjacent to the decomposition chamber 310 is conductive and grounded. A discharge gap is formed between the high-voltage electrode 630 and the rotating shaft 230, and the adsorption filter 110 circulates through the discharge gap.

[0159] In some embodiments, referring to Figure 9, a plurality of ultraviolet lamps 610 are arranged in the decomposition chamber 310. The plurality of ultraviolet lamps 610 irradiate the regeneration area 160 of the adsorption filter at different angles, increasing the area of action between the ultraviolet light and the regeneration area 160 and improving the VOC decomposition effect.

[0160] In some embodiments, referring to Figure 9 , two ultraviolet lamps 610 are arranged in the decomposition chamber 310. One of the ultraviolet lamps 610 emits ultraviolet light in the UVA band, and the other ultraviolet lamp 610 emits ultraviolet light in the UVC band. The ultraviolet light of the two bands irradiates the adsorption filter located in the decomposition chamber 310 at the same time, completely decomposing the VOC adsorbed on the filter, enabling the adsorption filter to be regenerated. The regenerated adsorption filter enters the windward side again and continues to adsorb VOC in the air.

[0161] In some embodiments, the inner wall surface of the decomposition chamber 310 is a reflective surface. When the ultraviolet light in the decomposition chamber 310 irradiates the inner wall of the decomposition chamber 310, reflection will occur, and since the decomposition chamber 310 is a sealed structure, there will be no leakage of ultraviolet light, enabling all ultraviolet rays to irradiate the regeneration area 160 of the adsorption filter and improving the regeneration effect.

[0162] In some embodiments, the decomposition chamber 310 is made of mirror stainless steel so that the inner wall surface of the decomposition chamber 310 becomes a reflective surface.

[0163] In some embodiments, the decomposition chamber 310 is made of galvanized sheet material, and then a reflector is pasted on the inner wall to reflect the excess ultraviolet light, promoting the absorption of ultraviolet light by the photocatalyst in the adsorption material and improving the regeneration efficiency.

[0164] [Installation Structure of Air Purification Device]

[0165] In some embodiments, referring to Figures 10 to 13 , the air purification device includes a housing 2. The housing 2 has a rectangular frame structure. An air inlet 450 is provided on the first side of the housing 2, and an air outlet 460 is provided on the second side. The first side and the second side are opposite to each other. In other words, the air inlet 450 is provided on the front side of the housing 2, and the air outlet 460 is provided on the rear side. The air inlet 450 and the air outlet 460 are directly connected front and back.

[0166] An air flow channel is formed between the air inlet 450 and the air outlet 460. Air flows into the air flow channel through the air inlet 450 and then flows out through the air outlet 460.

[0167] A first space is provided at the first end of the housing 2, and a second space is provided at the second end. The first end and the second end are opposite to each other, and the first space and the second space are distributed at opposite ends of the air circulation passage. In other words, the first space is provided at the left end of the housing 2, and the second space is provided at the right end, and the first space and the second space are arranged opposite to each other left and right. The first space and the second space are enclosed spaces, denoted as the enclosed cabins 320.

[0168] The adsorption filter 110 is arranged inside the housing 2. The part of the adsorption filter 110 facing the air circulation passage is the adsorption area 150, and the rest of the adsorption filter 110 is located inside the first space and the second space. In other words, the adsorption area 150 of the adsorption filter 110 faces the air inlet 450 and the air outlet 460, and the regeneration area 160 is located inside the enclosed cabin 320.

[0169] At least one high-voltage electrode 630 is arranged inside the enclosed cabin 320, and the decomposition part is configured to act with the decomposition catalyst 130 on the adsorption filter 110 to decompose VOCs. For example, the decomposition part is an ultraviolet lamp 610 or a high-voltage electrode 630 or a microwave generator 640, etc.

[0170] The air purification device as a whole has a flat rectangular structure. The adsorption filter 110, the driving device, the high-voltage electrode 630, and the enclosed cabin 320 are all integrated on the housing 2, and the overall structure is compact and small in volume.

[0171] In some embodiments, referring to Figure 11 , the housing 2 includes a first side plate 410, a second side plate 420, a first side frame 430, and a second side frame 440. The first side plate 410 and the second side plate 420 are plate-like structures. An air inlet 450 is provided on the first side plate 410, and an air outlet 460 is provided on the second side plate 420.

[0172] The first side frame 430 is a U-shaped frame structure, and the second side frame 440 is a slender frame structure. The second side frame 440 is fixed at the U-shaped opening of the first side frame 430. The first side frame 430 and the second side frame 440 enclose a rectangular frame structure, and the first side plate 410 and the second side plate 420 are fixed on opposite sides of the rectangular frame structure.

[0173] In some embodiments, referring to Figure 12 and Figure 18 , flanges are provided on the sides enclosing the air inlet 450 and the air outlet 460. In other words, a first flange 411 is provided on the first side plate 410, and the first flange 411 surrounds the air inlet 450; a second flange 421 is provided on the second side plate 420, and the second flange 421 surrounds the air outlet 460.

[0174] Sealing parts, such as sealing strips, are provided on the first flange 411 and the second flange 421. The sealing strips are configured to contact the adsorption filter 110 to prevent the air inside the first space and the second space from flowing out.

[0175] In some embodiments, referring to 1 and Figure 3 , the adsorption filter screen 110 has a linear closed annular structure. The adsorption filter screen 110 forms two adsorption zones 150, and the two adsorption zones 150 are arranged at intervals along the air flow direction. One end of the two adsorption zones 150 forms an arc-shaped first end 171, and the other end forms an arc-shaped second end 172. The first end 171 passes through the closed cabin 320 at the left end, and the second end 172 passes through the closed cabin 320 at the right end.

[0176] In some embodiments, referring to Figure 11 and Figure 13 , the driving part 2 includes a motor 510. The power output end of the motor 510 is connected to a first pulley 520. The shaft end of one of the rotating shafts 230 (driving shaft 210) is connected to a second pulley 530, and a belt 540 is arranged between the first pulley 520 and the second pulley 530. When the motor 510 starts, through the transmission of the first pulley 520, the belt 540 and the second pulley 530, the rotation of the driving shaft 210 is realized, and the driving shaft 210 drives the adsorption filter screen 110 to rotate.

[0177] Referring to Figure 17 , a flat part 233 is arranged on one shaft end of the driving shaft 210, and the flat part 233 is configured to cooperate with the second pulley 530 to prevent relative sliding between the two.

[0178] In some embodiments, referring to Figure 11 and Figure 13 , the driving part 2 is fixed on the top of the housing 2. An installation frame 550 is fixedly arranged on the inner side of the second side frame 440. The motor 510 is fixedly installed on the installation frame 550. The power output end of the motor 510 extends upward out of the second side frame 440. The first pulley 520, the belt 540 and the second pulley 530 are all arranged on the upper side of the second side frame 440. A cover shell 470 is fixedly installed on the upper side of the second side frame 440, and the cover shell 470 shields the first pulley 520, the belt 540 and the second pulley 530.

[0179] Bearings 240 are respectively installed on the inner sides of the first side frame 430 and the second side frame 440. The shaft ends of the driving shaft 210 and the driven shaft 220 are respectively matched with the corresponding side bearings 240 to realize the installation of the driving shaft 210 and the driven shaft 220 in the housing 2.

[0180] In some embodiments, referring to Figure 13 , a disassembly cabin 310 is arranged at one end of the housing 2, and a closed cabin 320 is arranged at the other opposite end.

[0181] A high-voltage electrode 630 is arranged in the disassembly cabin 310. An insulating fixing seat 480 is arranged on the inner wall of the disassembly cabin 310. Referring to Figure 16, mounting holes 481 are provided on the insulating fixing base 480, and the end of the high-voltage electrode 630 is located within the mounting hole 481. A wire groove 482 is provided on the insulating fixing base 480 to facilitate the routing of the high-voltage wire 633.

[0182] The insulating fixing base 480 is made of insulating materials such as polytetrafluoroethylene and nylon to prevent high-voltage discharge between the high-voltage electrode 630 and the housing 2.

[0183] In some embodiments, referring to Figure 13 , an ultraviolet lamp 610 is provided in the decomposition chamber 310, and the ultraviolet lamp 610 is fixedly installed on the first side frame 430. The ultraviolet lamp 610 extends in the vertical direction to increase the area of irradiation of the adsorption filter 110.

[0184] The ultraviolet lamp 610 is located on the side of the high-voltage electrode 630 away from the adsorption filter 110 so as not to affect the formation of a discharge gap between the high-voltage electrode 630 and the drive shaft 210 and the passage of the adsorption filter 110 through the discharge gap.

[0185] In some embodiments, referring to Figure 14 , decomposition chambers 310 are respectively provided at opposite ends of the housing 2, and a high-voltage electrode 630 and an ultraviolet lamp 610 are provided in each decomposition chamber 310.

[0186] In the description of the above embodiments, specific features, structures, materials or characteristics may be combined in a suitable manner in any one or more embodiments or examples.

[0187] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed by the present invention should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. An air purification device, characterized in that: include: an adsorption filter configured to adsorb pollutants in the air, the adsorption filter carrying an electrocatalyst; A driving unit, comprising a driving mechanism and a rotating shaft, wherein the driving mechanism is configured to drive the rotating shaft to rotate, the rotating shaft is configured to drive the adsorption filter to rotate, the rotating shaft is conductive, and the rotating shaft is grounded; A high-voltage electrode is provided, wherein a discharge gap is formed between the high-voltage electrode and the rotating shaft, and the adsorption filter circulates through the discharge gap. A high-voltage electric field is formed between the high-voltage electrode and the rotating shaft to decompose pollutants adsorbed on the adsorption filter.

2. The air purification device according to claim 1, characterized in that: The high-voltage electrode comprises a metal electrode and an insulating dielectric layer, the metal electrode is connected to a high-voltage power supply, and the insulating dielectric layer is wrapped around the outer periphery of the metal electrode; The high-voltage electrode is arranged in parallel with the rotating shaft, and the high-voltage electric field is formed between the high-voltage electrode and the rotating shaft.

3. The air purification device according to claim 2, characterized in that: The adsorption filter is a flexible adsorption filter, which is arranged in a surrounding manner to form a multi-layer adsorption area in contact with the air, and the air flows through the multi-layer adsorption area in sequence along its flow direction; The high voltage electrode is arranged in a region outside the adsorption region of the flexible adsorption filter.

4. The air purification device according to claim 3, characterized in that: The flexible adsorption filter screen is in a closed annular structure. The flexible adsorption filter screen is provided with at least two rotating shafts along its circumferential direction. At least one of the at least two rotating shafts is conductive and grounded.

5. The air purification device according to claim 4, characterized in that: The flexible adsorption filter screen is provided with reinforcement parts at the two opposite ends of the cross section; Two spaced-apart limiting platforms are provided in the axial direction of the rotating shaft, the flexible adsorption filter is located between the two limiting platforms, and any one of the two limiting platforms contacts the reinforcing part to drive the flexible adsorption filter to rotate.

6. The air purification device according to any one of claims 1 to 5, characterized in that: The air purification device comprises a decomposition cabin, and the high-voltage electrode is arranged in the decomposition cabin; The adsorption filter screen circulates through the decomposition chamber, the portion of the adsorption filter screen located within the decomposition chamber is a regeneration zone, and the portion of the adsorption filter screen located outside the decomposition chamber is an adsorption zone.

7. The air purification device according to claim 6, characterized in that: A control unit is arranged in the decomposition chamber, and the control unit is configured to control the rotation speed of the adsorption filter and the release voltage of the high-voltage electrode.

8. The air purification device according to claim 6, characterized in that: A high-voltage power supply is arranged in the decomposition chamber, and the high-voltage power supply is configured to supply power to the high-voltage electrode.

9. An air purification device, characterized in that: include: A flexible adsorption filter is configured to adsorb pollutants in the air, the flexible adsorption filter is loaded with a photoelectric catalyst, the flexible adsorption filter is arranged in a surrounding manner to form a multi-layer adsorption area in contact with the air, and the air flows through the multi-layer adsorption area in sequence along its flow direction; A driving unit, comprising a driving mechanism and a rotating shaft, wherein the driving mechanism is configured to drive the rotating shaft to rotate, the rotating shaft is configured to drive the adsorption filter to rotate, and the rotating shaft is conductive and grounded; A decomposition chamber, wherein the flexible adsorption filter screen circulates through the decomposition chamber, the portion of the flexible adsorption filter screen located within the decomposition chamber is the regeneration zone, and the portion of the flexible adsorption filter screen located outside the decomposition chamber is the adsorption zone; A high-voltage electrode is arranged in the decomposition chamber, a discharge gap is formed between the high-voltage electrode and the rotating shaft, the flexible adsorption filter circulates through the discharge gap, and a high-voltage electric field is formed between the high-voltage electrode and the rotating shaft to decompose the pollutants adsorbed on the flexible adsorption filter.

10. An indoor unit, comprising: A housing, the housing comprising an air outlet, an air return outlet, and a channel, the channel connecting the air outlet and the air return outlet; It is characterized in that the indoor unit also includes an air purification device as described in any one of claims 1 to 9, and the air purification device is arranged at at least one of the air outlet, the return air outlet and the channel.

11. An air conditioner, comprising: Outdoor unit; as well as An indoor unit is connected to the outdoor unit, and the indoor unit is the indoor unit according to claim 10.

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