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 a flexible adsorption filter screen, a decomposition cabin and a decomposition part, the flexible adsorption filter screen is configured to adsorb pollutants in air, and a decomposition catalyst is loaded on the flexible adsorption filter screen; the flexible adsorption filter screen is arranged in a surrounding mode to form multiple layers of adsorption areas used for making contact with air, the air sequentially flows through the multiple adsorption areas in the flowing direction of the air, the flexible adsorption filter screen circularly penetrates through the decomposition bin, the part, located in the decomposition bin, of the flexible adsorption filter screen is a regeneration area, and the part, located outside the decomposition bin, of the flexible adsorption filter screen is an adsorption area. The decomposition part is configured to act with a decomposition catalyst to decompose the contaminants adsorbed on the regeneration area.

Description

Technical Field

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

[0002] The air conditioner includes an indoor unit and an outdoor unit. Some indoor units are equipped with air purification devices (such as air purifiers, etc.), which are usually set in the air outlet, return air outlet or internal channel of the indoor unit. The air purification device is configured to process the air flowing through to purify the air. The air purification module usually uses adsorption components 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 components are activated carbon, molecular sieves, zeolites, ceramics, etc., all of which are hard structures. In order to reduce the amount of consumables used and the service life of the adsorption materials, when the adsorption materials are used, the adsorption saturated part should be desorbed and regenerated. In order to achieve the functions of adsorption and desorption at the same time, the adsorption materials are generally designed as a circular rotor structure due to the material properties. The rotor-type adsorption components have the following disadvantages:

[0004] (1) The adsorption wheel mainly serves the function of adsorbing VOCs. The adsorbed VOCs need to be desorbed by heating, which consumes a lot of energy.

[0005] (2) The adsorption wheel has a complex structure and is divided into an adsorption zone, a desorption zone, and a cooling zone. It requires the installation of many air duct branches and fire prevention measures. The sealing requirements during the operation of the wheel are also high, resulting in a high equipment failure rate and complicated equipment maintenance.

[0006] (3) Due to its structural shape, it cannot be used for flat air outlets or return air outlets on equipment such as duct machines, resulting in low space utilization.

[0007] The above information disclosed in the background technology is only used to increase the understanding of the background technology of the present application, and therefore, it may include information that does not constitute the prior art known to ordinary technicians in the field. Summary of the invention

[0008] In view of the problems pointed out in the background technology, the utility model proposes an air purification device, an indoor unit and an air conditioner. The air purification device directly decomposes the pollutants adsorbed on the adsorption filter without desorption and post-treatment. It has a simple structure, high efficiency and improves the air purification effect.

[0009] On the one hand, an air purification device is provided, which includes a flexible adsorption filter, a decomposition chamber and a decomposition part. The flexible adsorption filter is configured to adsorb pollutants in the air, a decomposition catalyst is loaded on the flexible adsorption filter, the flexible adsorption filter is arranged in a surrounding manner to form a multi-layer adsorption zone for contacting with the air, the air flows through the multiple adsorption zones in sequence along its flow direction, the flexible adsorption filter circulates through the decomposition chamber, the part of the flexible adsorption filter located within the decomposition chamber is the regeneration zone, and the part located outside the decomposition chamber is the adsorption zone, the decomposition part is arranged in the decomposition chamber, and the decomposition part is configured to act with the decomposition catalyst to decompose the pollutants adsorbed on the regeneration zone.

[0010] On the other hand, an indoor unit is provided, 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;

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

[0012] On the other hand, an air conditioner is provided, comprising an indoor unit and an outdoor unit, wherein 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 more clear. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

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

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

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

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

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

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

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

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

[0023] Fig. 9 is another structural diagram of an air purification device according to some embodiments;

[0024] Fig.10 is another structural diagram of an air purification device according to some embodiments;

[0025] Fig.11 is another partial structural diagram of an air purification device according to some embodiments;

[0026] Fig.12 is another partial structural diagram of an air purification device according to some embodiments;

[0027] Fig.13 is another structural diagram of an air purification device according to some embodiments;

[0028] Fig.14 is another structural diagram of an air purification device according to some embodiments;

[0029] Fig.15 is another partial structural diagram of an air purification device according to some embodiments;

[0030] Fig.16 is another partial structural diagram of an air purification device according to some embodiments;

[0031] Fig.17 is another structural diagram of an air purification device according to some embodiments;

[0032] Fig.18 is another structural diagram of an air purification device according to some embodiments;

[0033] Fig.19 is another structural diagram of an air purification device according to some embodiments;

[0034] Fig. 20 is a structural diagram of an air purification device according to some embodiments;

[0035] Fig.21 is an exploded view of an air purification device according to some embodiments;

[0036] Fig. 22 is a partial cross-sectional view of an air purification device according to some embodiments;

[0037] Fig.23 is a cross-sectional view of an air purification device according to some embodiments;

[0038] Fig.24 Another cross-sectional view of an air purification device according to some embodiments

[0039] Fig.25 is a cross-sectional view of a high voltage electrode according to some embodiments;

[0040] Fig.26 is a structural diagram of an insulating fixing seat according to some embodiments;

[0041] Fig. 27 is a structural diagram of a drive shaft according to some embodiments;

[0042] Fig.28 A structural diagram of a first side panel according to some embodiments. DETAILED DESCRIPTION

[0043] Some embodiments of the present disclosure will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present disclosure, rather than all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments provided by the present disclosure are within the scope of protection of the present disclosure.

[0044] Unless the context requires otherwise, throughout the specification and claims, the term "comprise" and other forms thereof, such as the third person singular form "comprises" and the present participle form "comprising", are to be interpreted as open, 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" and the like are intended to indicate that specific features, structures, materials or characteristics associated with the embodiment or example are included in at least one embodiment or example of the present disclosure. The schematic representation of the above terms does not necessarily refer 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.

[0045] In the following, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present disclosure, unless otherwise specified, "plurality" means two or more.

[0046] When 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, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. The term "coupled" indicates that two or more components are in direct physical or electrical contact. The term "coupled" or "communicatively coupled" may also refer to two or more components that are not in direct contact with each other, but still cooperate or interact with each other. The embodiments disclosed herein are not necessarily limited to the contents of this document.

[0047] “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: A only, B only, C only, 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.

[0048] “A and / or B” includes the following three combinations: A only, B only, and a combination of A and B.

[0049] The use of "adapted to" or "configured to" herein is meant to be open and inclusive language that does not exclude devices adapted or configured to perform additional tasks or steps.

[0050] As used herein, "about," "substantially," or "approximately" includes the stated value and an average value that is within an acceptable range of variation from the particular value as determined by one of ordinary skill in the art taking into account the measurements in question and the errors associated with the measurement of the particular quantity (i.e., the limitations of the measurement system).

[0051] As used herein, "parallel", "perpendicular", and "equal" include the situations described and situations similar to the situations described, and the range of the similar situations is within the acceptable deviation range, wherein the acceptable deviation range is determined by a person of ordinary skill in the art taking into account the measurement in question and the errors 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, wherein the acceptable deviation range of approximate parallelism may be, for example, a deviation within 5°; "perpendicular" includes absolute perpendicularity and approximate perpendicularity, wherein the acceptable deviation range of approximate perpendicularity may also be, for example, a deviation within 5°. "Equal" includes absolute equality and approximate equality, wherein the acceptable deviation range of approximate equality may be, for example, the difference between the two equalities is less than or equal to 5% of either one.

[0052] Air purification devices usually use adsorption components to absorb pollutants in the air, such as volatile organic compounds (VOCs). VOCs in the air include toluene, xylene, formaldehyde, alcohols, etc.

[0053] The adsorption components of the air purification device include activated carbon, molecular sieves, zeolites, ceramics and other materials, all of which are rigid materials. In 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 amount of adsorption material used, and increase the service life of the adsorption material, the air purification device also needs to desorb and regenerate the adsorption saturated part of the adsorption material. In order to achieve the functions of adsorption and desorption of pollutants at the same time, the adsorption material is generally designed as a circular rotor structure due to the rigid properties of the adsorption material. However, the rotor-type adsorption component cannot be applied to flat air outlets or return air outlets on equipment such as duct units, has low adaptability and reduces the space utilization rate of air-conditioning equipment such as duct units.

[0054] In order to solve the above problems, some embodiments of the present disclosure provide an air conditioner, wherein the indoor unit of the air conditioner is provided with an air purification device. The air purification device uses a flexible adsorption filter as an 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 adsorption and desorption of pollutants. In addition, the flexible adsorption filter can form different usage forms according to different usage spaces. Thereby, the problem that hard adsorption materials cannot rotate in limited spaces, especially in special-shaped spaces, is solved.

[0055] It should be noted that rigidity refers to the physical property that an object deforms after being subjected to force and cannot return to its original shape after the force is lost. Flexibility can be interpreted as flexibility, which is a property of an object relative to rigidity. Flexibility refers to the physical property that an object deforms after being subjected to force and cannot return to its original shape after the force is lost.

[0056] [Air conditioner]

[0057] Some embodiments of the present disclosure provide an air conditioner.

[0058] The air conditioner performs the air conditioning cycle by using a compressor, condenser, expansion valve and evaporator to form a refrigerant circuit. The air conditioning cycle includes a series of processes involving compression, condensation, expansion and evaporation to cool or heat the indoor space.

[0059] In some embodiments, the air conditioner includes an outdoor unit.

[0060] In some embodiments, the air conditioner further comprises an indoor unit, and the indoor unit is connected to the outdoor unit.

[0061] In some embodiments, the outdoor unit includes a compressor. The compressor is configured to compress the refrigerant so 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 high-temperature and high-pressure refrigerant gas, and discharges the compressed refrigerant gas. 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.

[0062] In some embodiments, the outdoor unit further includes a first heat exchanger (outdoor heat exchanger) configured to perform heat exchange between outdoor air and a refrigerant transmitted in the first heat exchanger.

[0063] In some embodiments, the indoor unit includes a second heat exchanger (indoor heat exchanger) configured to perform heat exchange between indoor air and a refrigerant transmitted in the second heat exchanger.

[0064] In some embodiments, the air conditioner further includes an expansion valve, which may be provided in the indoor unit or the outdoor unit. The expansion valve expands the liquid refrigerant in a high temperature and high pressure state formed by condensation in the condenser into a low pressure liquid 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 utilizing the latent heat of evaporation of the refrigerant to exchange heat with the material to be cooled. In the entire cycle, the air conditioner can adjust the temperature of the indoor space.

[0065] The second heat exchanger and the first heat exchanger are used as a condenser or an evaporator. When the second heat exchanger is used as a condenser, the air conditioner performs a heating mode. When the second heat exchanger is used as an evaporator, the air conditioner performs a cooling mode.

[0066] In some embodiments, the outdoor unit further includes a four-way valve, which is connected to the refrigerant circuit, and the four-way valve is configured to switch the flow direction of the refrigerant in the refrigerant circuit so that the air conditioner performs a cooling mode or a heating mode. The refrigeration working principle of the air conditioner includes: the compressor works to make the second heat exchanger (in the indoor unit, the evaporator at this time) in an ultra-low pressure state, the liquid refrigerant in the second heat exchanger evaporates rapidly to absorb heat, the wind blown out by the fan of the indoor unit is cooled by the second heat exchanger coil and becomes cold wind to be blown indoors, the evaporated refrigerant is pressurized by the compressor, and condenses into a liquid under the high pressure environment in the first heat exchanger (in the outdoor unit, the condenser at this time), releasing heat, and dissipating the heat to the atmosphere through the fan of the outdoor unit, so that the cycle achieves the cooling effect.

[0067] The heating working principle of the air conditioner includes: the gaseous refrigerant is pressurized by the compressor, becomes a high-temperature and high-pressure gas, enters the second heat exchanger (the condenser at this time), condenses and liquefies to release heat, becomes a liquid, and heats the indoor air, thereby achieving the purpose of increasing the indoor temperature. The liquid refrigerant is decompressed by the throttling device and enters the first heat exchanger (the evaporator at this time), evaporates and absorbs heat to become a gas, and absorbs heat from the outdoor air (the outdoor air becomes colder), becomes a gaseous refrigerant, and enters the compressor again to start the next cycle.

[0068] [Indoor unit]

[0069] In some embodiments, the indoor unit further comprises a third shell, on which an indoor air outlet and an indoor air return outlet are arranged. An air supply channel is arranged in the third shell, the air supply channel is connected to the indoor air outlet and the indoor air return outlet, and a second heat exchanger and a fan are arranged in the air supply channel.

[0070] Under the action of the fan, the indoor air enters the air supply channel through the indoor return air outlet and exchanges heat with the second heat exchanger. During the heat exchange process, the indoor air temperature rises or falls. The heat-exchanged air then flows into the room through the indoor air outlet, thereby achieving indoor air temperature regulation.

[0071] In some embodiments, the indoor unit further comprises an air purification device, which is arranged at at least one of the indoor air outlet, the indoor air return outlet and the air supply channel. The air purification device is configured to purify the air flowing through to improve the indoor air quality.

[0072] Air purification devices can purify pollutants in the air, such as VOCs. Volatile organic compounds include toluene, xylene, formaldehyde, alcohols, etc.

[0073] [Air purification device]

[0074] In some embodiments, reference Figures 6 to 19 , the air purification device includes a flexible adsorption filter. Figure 1 A structural diagram of a flexible adsorption filter.

[0075] Reference Figure 1 The flexible adsorption filter 110 is configured to adsorb pollutants in the air, such as VOCs.

[0076] Flexible adsorption filter screens can be used in different forms according to different usage spaces. Figure 1 or Figure 4 or Figure 5 , which solves the problem that hard adsorption materials cannot be effectively transmitted in limited spaces, especially in special-shaped spaces.

[0077] In some embodiments, the flexible adsorbent filter 110 is made of a flexible adsorbent material 140, Figure 2 The flexible adsorption material 140 is a porous adsorption material, which may be a flexible adsorption material with high specific surface area and high flexibility, such as activated carbon fiber felt, activated carbon fiber cotton, carbon fiber cloth, etc.

[0078] In some embodiments, reference Figure 6 or Fig.10 or Fig.14 or Fig.18 The area on the flexible adsorption filter screen 110 is divided into an adsorption area 150 and a regeneration area 160 .

[0079] The air flows through the adsorption zone 150 , which is configured to adsorb pollutants, such as VOCs, in the air.

[0080] In some embodiments, reference Figure 2 The decomposition catalyst 130 is loaded on the flexible adsorption filter 110. The flexible adsorption filter 110 is used in conjunction with the regeneration device. Through the action of the regeneration device and the decomposition catalyst 130, the VOC on the regeneration area 160 is desorbed or decomposed, and the regeneration of the flexible adsorption filter 110 is achieved to improve the adsorption capacity, thereby improving the air purification effect.

[0081] In some embodiments, reference Figure 1 or Figure 4 or Figure 5 The flexible adsorption filter 110 is arranged around to form a plurality of adsorption areas 150 for contacting the air. The air flows through the plurality of adsorption areas 150 along its flow direction, thereby achieving multiple adsorption of VOCs and improving the air purification effect.

[0082] When the air containing VOC flows through the flexible adsorption filter 110, it first flows through the first adsorption area 150, and the air contacts the windward surface of the first adsorption area 150. The flexible adsorption filter 110 is a microporous adsorption material, and the micropores face different directions, and have micropores facing the windward side and micropores facing the leeward side. A part of the VOC in the air is adsorbed into the micropores facing the windward side and will not easily fall off from the adsorption area 150, and the remaining VOC that is not adsorbed continues to flow with the air to the windward side of the second adsorption area 150, and the micropores on the second adsorption area 150 facing the windward side perform secondary adsorption on the VOC in the air, and so on, as the air flows through multiple adsorption areas 150 in sequence, multiple adsorption of VOC is achieved, thereby improving the adsorption effect of VOC and improving the air purification effect.

[0083] Since the wind passes through the windward side and the leeward side in opposite directions relative to the flexible adsorption filter 110, the residual VOC can be adsorbed more effectively, thereby improving the adsorption effect.

[0084] In some embodiments, the air purification device includes a decomposition chamber 310, and the flexible adsorption filter 110 circulates through the decomposition chamber 310. The part of the flexible adsorption filter 110 located inside the decomposition chamber 310 is a regeneration zone 160, and the part outside the decomposition chamber 310 is an adsorption zone 150.

[0085] In some embodiments, the air purification device includes a decomposition unit, which is disposed in the decomposition chamber 310 and is configured to act with the decomposition catalyst 130 on the flexible adsorption filter 110 to decompose the pollutants adsorbed on the regeneration zone 160 .

[0086] In some embodiments, depending on the type of the decomposition unit, the decomposition catalyst 130 is made of a manganese-based catalyst, platinum metal, and palladium metal, with the manganese-based catalyst being the main component and a certain proportion of platinum metal and palladium metal being doped, and has a high catalytic efficiency.

[0087] In the air purification device disclosed in the present invention, the flexible adsorption filter 110 is made into different usage forms according to the usage space, the decomposition chamber 310 is arranged to avoid the air circulation path, and at the same time, the flexible adsorption filter 110 circulates through the decomposition chamber 310, and the decomposition catalyst 130 is loaded on the flexible adsorption filter 110. The flexible adsorption filter 110 circulates through the decomposition chamber 310, and a decomposition part is arranged in the decomposition chamber 310. The decomposition part acts with the decomposition catalyst 130 to directly decompose the pollutants adsorbed on the adsorption filter to achieve regeneration without desorption and post-treatment. The overall structure is compact and efficient, and the air purification effect is improved.

[0088] [Flexible adsorption filter for air purification device]

[0089] In some embodiments, the flexible adsorbent material 140 is a porous material with burrs on the edges and is easily deformed when pulled by external force.

[0090] Therefore, refer to Figure 1 and Figure 3 A reinforcement part 120 is provided at the cross-section edge of the flexible adsorption filter screen 110. The reinforcement part 120 improves the structural strength of the flexible adsorption filter screen 110.

[0091] In some embodiments, a rubber seal is performed at the end edge of the cross section of the flexible adsorption filter 110 to form a reinforcement portion 120 for ease of processing and manufacturing.

[0092] In some embodiments, reference Figure 3 The two reinforcing parts 120 are arranged at the two opposite ends of the cross section of the flexible adsorption filter 110. The two reinforcing parts 120 are arranged to improve the structural strength of the flexible adsorption filter 110 on the one hand, and are used to cooperate with the rotating shaft 230, and the cooperation between the rotating shaft 230 and the reinforcing parts 120 drives the flexible adsorption filter 110 to rotate.

[0093] In some embodiments, reference Figure 1 or Figure 4 or Figure 5 The flexible adsorption filter 110 is in a closed annular structure, so the flexible adsorption filter 110 can rotate cyclically under the drive of the driving device, thereby realizing continuous conversion of the adsorption area 150 and the regeneration area 160, realizing simultaneous online purification and desorption regeneration, and improving the adsorption capacity of the flexible adsorption filter 110.

[0094] In some embodiments, reference Figure 1 and Figure 3 The flexible adsorption filter 110 is in a closed ring structure in the shape of a letter "I". The flexible adsorption filter 110 forms two layers of adsorption areas 150, which are referred to as an adsorption area 150A and a second adsorption area 150B. The two layers of adsorption areas 150 extend in a direction perpendicular to the air flow. The two layers of adsorption areas 150 are arranged at intervals in the air flow direction.

[0095] The two adsorption areas 150 are connected in an arc-shaped transition, with one end forming an arc-shaped first end 171 and the other end forming an arc-shaped second end 172. The first end 171 and the second end 172 are configured to cooperate with a driving device to drive the flexible adsorption filter 110 to rotate.

[0096] Reference Figure 6 The air containing VOC flows through the adsorption area 150A and the adsorption area 150B in sequence to achieve secondary adsorption of VOC.

[0097] In some embodiments, reference Figure 4The flexible 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.

[0098] In some embodiments, the flexible adsorption filter 110 is in a special-shaped closed ring structure. The flexible 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 flexible adsorption filter 110 in a limited space and improves the VOC adsorption effect.

[0099] For example, refer to Figure 5 The flexible adsorption filter 110 is an L-shaped closed ring structure. Air flows from one side of the L-shaped closed ring structure to the other side, passing through the two adsorption areas 150 in sequence, thereby improving the VOC adsorption effect.

[0100] In some embodiments, the flexible adsorption filter 110 is made by cutting and sewing the flexible adsorption material 140. According to the size of the installation space, the flexible adsorption filter 110 can be made into different shapes and sizes to meet different installation requirements.

[0101] In some embodiments, the ends of the flexible adsorbent material 140 are sewn together to form a closed ring structure. Figure 1 The seam mark of the head and tail seams of the flexible absorbent material 140 is 180.

[0102] The flexible adsorption filter 110 is an annular conveyor belt structure, which can carry out directionally transporting the VOC adsorbed thereon, and transport the VOC after adsorption to a specific area for desorption or decomposition, and can be used repeatedly.

[0103] In some embodiments, the manufacturing process of the flexible adsorption filter 110 is as follows:

[0104] 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);

[0105] Then, according to the requirements of the desorption regeneration process, a suitable catalyst is selected, the catalysts are mixed in proportion to prepare 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;

[0106] 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;

[0107] 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 an annular flexible adsorption filter 110;

[0108] 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 flexible adsorption filter screen 110 is completed.

[0109] [Drive unit of air purification device]

[0110] In some embodiments, reference Figure 6 The air purification device includes a driving unit 2, which is configured to drive the flexible adsorption filter 110 to circulate through the decomposition chamber 310, realize continuous conversion of the adsorption area 150 and the regeneration area 160, realize simultaneous online purification and desorption regeneration, and improve the adsorption capacity of the flexible adsorption filter 110.

[0111] In some embodiments, reference Figure 5 or Figure 6 The driving part 2 includes a driving shaft 210 and a driven shaft 220. The driving shaft 210 and the driven shaft 220 are collectively referred to as a rotating shaft 230. The driving shaft 210 and the driven shaft 220 are arranged at intervals along the rotation direction of the flexible adsorption filter 110, and the flexible adsorption filter 110 is wound around the driving shaft 210 and the driven shaft 220.

[0112] Reference Figure 5 The flexible adsorption filter 110 is in a special-shaped closed ring structure. The flexible adsorption filter 110 is turned and bent around a plurality of rotating shafts 230 . At least one of the rotating shafts 230 is a driving shaft, and the other rotating shafts 230 are driven shafts.

[0113] Reference Figure 6 The flexible adsorption filter screen 110 is in a straight-line closed ring structure. A driving shaft 210 is disposed at one end of the flexible adsorption filter screen 110 , and a driven shaft 220 is disposed at the other end.

[0114] Reference Fig. 27 Two spaced-apart limit platforms 232 are provided in the axial direction of the rotating shaft 230 . The limit platforms 232 extend along the circumference of the rotating shaft 230 and are annular boss structures. The flexible adsorption filter screen 110 is located between the two limit platforms 232 . The two limit platforms 232 limit the axial position of the flexible adsorption filter screen 110 .

[0115] The limiting platform 232 contacts the reinforcing portion 120 to drive the flexible adsorption filter screen 110 to rotate.

[0116] In some embodiments, the limiting platform 232 is in contact with the reinforcing portion 120 , and relies on the friction between the two to rotate through the rotating shaft 230 , thereby driving the flexible adsorption filter screen 110 to rotate synchronously.

[0117] In some embodiments, a flexible gear is disposed on the limiting platform 232 , and a flexible rack is correspondingly disposed on the reinforcing portion 120 . The flexible gear is meshed with the flexible rack, and the flexible adsorption filter 110 is driven to rotate synchronously through the rotation of the rotating shaft 230 .

[0118] [Decomposition chamber of air purification device]

[0119] In some embodiments, reference Figures 6 to 19 The flexible adsorption filter 110 circulates through the decomposition chamber 310 under the drive of the driving device. The part of the flexible adsorption filter 110 located inside the decomposition chamber 310 is the regeneration zone 160 , and the part located outside the decomposition chamber 310 is the adsorption zone 150 , and air flows through the adsorption zone 150 .

[0120] The decomposition chamber 310 is a closed cavity, and the flexible adsorption filter 110 is regenerated in the decomposition chamber 310 .

[0121] In some embodiments, reference Figure 5 or Figure 6 or Fig.10 or Fig.14 or Fig.18 The flexible adsorption filter screen 110 is in 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.

[0122] According to the extension direction of the flexible adsorption filter 110, one decomposition chamber 310 or a plurality of decomposition chambers 310 are provided to improve the regeneration efficiency of the flexible adsorption filter 110, thereby improving the air purification effect.

[0123] In some embodiments, reference Figure 6 or Fig.10 or Fig.14 or Fig.19 The flexible adsorption filter 110 is in a closed ring structure in the shape of a straight line. The flexible adsorption filter 110 forms two adsorption areas 150. The two adsorption areas 150 are arranged at intervals along the air flow direction. One end of the two adsorption areas 150 forms an arc-shaped first end 171, and the other end forms an arc-shaped second end 172.

[0124] A closed cabin 320 is disposed on the first end 171 and the second end 172 , respectively. The closed annular structure circulates through the closed cabin 320 . At least one closed cabin 320 is a decomposition cabin 310 to achieve regeneration of the flexible adsorption filter 110 .

[0125] The closed cabin 320 plays a sealing role to prevent polluted air from flowing directly from the side to the air outlet 460 without passing through the flexible adsorption filter 110, so that the air flowing to the air outlet 460 is all air adsorbed and filtered by the flexible adsorption filter 110.

[0126] In some embodiments, reference Figure 6 or Fig.10 or Fig.14 or Fig.18 , wherein a closed cabin 320 serves as a decomposition cabin 310, in which a decomposition part is arranged.

[0127] In some embodiments, reference Fig. 9 or Fig.12 or Fig.17 or Fig.19 The two closed cabins 320 are both used as decomposition cabins 310, and decomposition parts are arranged in the two closed cabins 320. When the flexible adsorption filter 110 circulates through the two decomposition cabins 310, both ends of the flexible adsorption filter 110 can be regenerated at the same time, thereby improving the regeneration efficiency.

[0128] In some embodiments, according to the difference in VOC concentration between the air inlet and the air outlet, the two decomposition parts in the two decomposition chambers 310 are opened one by one or simultaneously, thereby ensuring the regeneration efficiency and purification effect while reducing energy consumption.

[0129] [Air purification device uses heating to regenerate]

[0130] In some embodiments, reference Figures 14 to 17 The air purification device desorbs the VOC adsorbed on the flexible adsorption filter 110 by heating, and then uses the ozone generator 650 to decompose the desorbed VOC to achieve the regeneration of the flexible adsorption filter 110.

[0131] In other words, driven by the driving shaft 210 and the driven shaft 220, the flexible adsorption filter 110 continuously enters the regeneration zone 160 from the adsorption zone 150, and then re-enters the adsorption zone 150. When the flexible adsorption filter 110 is transferred to the regeneration zone 160, under the action of the ozone generator 650 and heating, the VOC in the flexible adsorption filter 110 is volatilized into the decomposition chamber 310, and the VOC is oxidized into carbon dioxide and water under the oxidation action of ozone. The structure is simple and the VOC purification efficiency is high.

[0132] The decomposition chamber 310 is a closed structure, and the VOC and ozone in the decomposition chamber 310 will not leak.

[0133] In some embodiments, reference Fig.14 A heating element 660 is disposed on the driving shaft 210 and / or the driven shaft 220 , and the heating element 660 is configured to heat the regeneration zone 160 of the flexible adsorption filter 110 to desorb the pollutants adsorbed on the regeneration zone 160 into the decomposition chamber 310 .

[0134] In some embodiments, the driving shaft 210 and the driven shaft 220 are collectively referred to as a rotating shaft 230 . The interior of the rotating shaft 230 provided with the heating element 660 is a hollow cavity 231 . The heating element 660 is disposed on the inner circumferential wall of the hollow cavity 231 .

[0135] The heating element 660 is an electric heating plate, see Fig.15 The air purification device is equipped with a first power supply 710 for supplying power to the electric heating plate. The electric heating plate is powered on for heating, and the heat is transferred to the rotating shaft 230. When the flexible adsorption filter 110 rotates around the rotating shaft 230, the rotating shaft 230 transfers the heat to the flexible adsorption filter 110 near the rotating shaft 230. Here, the temperature of the flexible adsorption filter 110 (i.e., the regeneration zone 160) increases, and the adsorbed VOC escapes from the micropores of the flexible adsorption material 140, and then desorbs from the flexible adsorption filter 110 and desorbs into the decomposition chamber 310.

[0136] The electric heating plate is fixed to the inner cavity wall of the rotating shaft 230 by gluing, which is easy to install and makes the rotating shaft 230 heated evenly, so that the flexible adsorption filter 110 is heated evenly, ensuring that VOCs in various areas of the flexible adsorption filter 110 are effectively desorbed.

[0137] In some embodiments, reference Fig.14 The decomposition part is an ozone generator 650 , which is disposed in the decomposition chamber 310 . The ozone generator 650 is configured to decompose the VOC in the decomposition chamber 310 .

[0138] Reference Fig.15 The air purification device is equipped with a second power supply 720 for supplying power to the ozone generator 650, and the second power supply 720 is a high voltage power supply.

[0139] The VOCs desorbed from the flexible adsorption filter 110 by heating are stored in the decomposition chamber 310. The decomposition chamber 310 is provided with an ozone generator 650 based on the principle of high-voltage discharge. The ozone generator 650 relies on high-voltage ionization to excite the oxygen in the air into ozone. Ozone is unstable and has strong oxidizing properties. Therefore, it will urgently undergo redox reactions with the surrounding gas components to decompose the VOC gas.

[0140] In addition, due to the effect of electric heating, the temperature in the decomposition chamber 310 increases. The decomposition reaction of ozone is closely related to the ambient temperature. When the temperature rises, the decomposition rate of ozone is accelerated, thereby promoting the redox reaction of ozone and accelerating the decomposition rate of VOC.

[0141] Since there is not only oxygen but also a lot of VOC in the decomposition chamber 310, some VOC will be directly crushed during the high-voltage ionization process of the ozone generator 650. Another part will continue to be oxidized by the ozone generated during the high-voltage ionization process, and finally generate carbon dioxide and water. Therefore, after the flexible adsorption filter 110 passes through the decomposition chamber 310, the VOC adsorbed inside will be released and decomposed, and the adsorption filter can be regenerated and return to the adsorption area 150 for adsorption.

[0142] In some embodiments, a heating element 660 is disposed on at least one of the plurality of rotating shafts 230 that drive the flexible adsorption filter 110 to rotate.

[0143] For example, refer to Fig.14 The plurality of rotating shafts 230 include a driving shaft 210 and a driven shaft 220 , and a heating element 660 is disposed in an inner cavity of the driving shaft 210 .

[0144] In some embodiments, the decomposition chamber 310 is disposed close to the heating element 660 , and the decomposition chamber 310 and the heating element 660 are located on opposite sides of the flexible adsorption filter 110 .

[0145] Reference Fig.14 The drive shaft 210 and the heating element 660 are located on one side of the flexible adsorption filter 110, and the decomposition chamber 310 is located on the other side opposite to the flexible adsorption filter 110. Heat is transferred from one side to the other side of the flexible adsorption filter 110, so that the VOC on the regeneration zone 160 is desorbed into the decomposition chamber 310.

[0146] In some embodiments, reference Fig.16 The heating element 660 is arranged in the decomposition chamber 310. The heating element 660 heats the air in the decomposition chamber 310. The temperature in the decomposition chamber 310 increases, so that the temperature of the flexible adsorption filter 110 passing through the decomposition chamber 310 also increases, thereby desorbing the VOC on the regeneration zone 160 into the decomposition chamber 310.

[0147] In some embodiments, reference Fig.14 The flexible adsorption filter 110 is in a straight-line closed ring structure. A decomposition chamber 310 is arranged at one end of the flexible adsorption filter 110, an ozone generator 650 is arranged in the decomposition chamber 310, a heating element 660 is arranged in a rotating shaft 230 (such as a driving shaft 210) near the decomposition chamber 310, and a closed chamber 320 is arranged at the other end of the flexible adsorption filter 110.

[0148] In some embodiments, reference Fig.17 The flexible adsorption filter 110 is in a straight-line closed ring structure. Decomposition chambers 310 are arranged at opposite ends of the flexible adsorption filter 110. An ozone generator 650 is arranged in the decomposition chamber 310. A heating element 660 is arranged in two rotating shafts 230 (including a driving shaft 210 and a driven shaft 220).

[0149] In some embodiments, reference Fig.14 , sensors are respectively arranged at the air inlet and the air outlet of the air purification device, which are denoted as the air inlet sensor 810 and the air outlet sensor 820. The air inlet sensor 810 is configured to detect the VOC concentration at the air inlet 450, denoted as a. The air outlet sensor 820 is configured to detect the VOC concentration at the air outlet 460, denoted as b.

[0150] In some embodiments, reference Fig.14 A control system 5 is provided in the decomposition chamber 310, and the control system 5 is configured to perform intelligent control on the air purification device.

[0151] The difference between the VOC concentration a at the air inlet 450 and the VOC concentration b at the air outlet 460 is c. The control system 5 determines the saturation state of the flexible adsorption filter 110 according to the values ​​of a, b and c, and adjusts the power of the heating element 660, the power of the ozone generator 650 and the rotation speed of the flexible adsorption filter 110.

[0152] The control system 5 adjusts the rotation speed of the flexible adsorption filter 110 and the working time of the ozone generator 650 (regulates the amount of ozone generated) according to the numerical feedback of the sensor, which can effectively avoid the reduction of purification effect caused by the saturation of the filter in the adsorption area 150.

[0153] The control system 5 controls the residence time of the flexible adsorption filter 110 in the decomposition chamber 310 by controlling the rotation speed of the flexible adsorption filter 110 to achieve a better regeneration requirement and thus improve the purification effect.

[0154] In some embodiments, reference Fig.14 An ozone concentration sensor 830 is provided at the air outlet 460 and is configured to detect the ozone concentration at the air outlet 460 to prevent ozone leakage caused by equipment failure or excessive ozone concentration in the decomposition chamber 310.

[0155] In some embodiments, reference Fig.14 A temperature sensor 840 is provided in the decomposition chamber 310 and is configured to detect the temperature in the decomposition chamber 310. The control system 5 adjusts the power of the heating element 660 according to the temperature value to control the temperature in the decomposition chamber 310.

[0156] In some embodiments, the air purification device has an automatic cleaning mode. After the system enters the automatic cleaning mode, the fan of the air conditioner is turned off or the air inlet is closed, no air flows through the flexible adsorption filter 110, the ozone generator 650 operates at the longest working time, the heating element 660 is turned on, the speed of the flexible adsorption filter 110 is adjusted to the lowest, and the temperature T in the decomposition chamber 310 and the ozone concentration d at the air outlet 460 are monitored.

[0157] When the control system 5 detects that the flexible adsorption filter screen 110 rotates N (for example, 3) cycles, the self-cleaning mode ends, the system stops, and waits for the next instruction from the user.

[0158] [Air purification device uses ultraviolet light to regenerate]

[0159] In some embodiments, reference Figure 6 The air purification device uses ultraviolet light, and the decomposition catalyst 130 is a photocatalyst. The photocatalyst is loaded on the flexible adsorption filter 110, and the VOC adsorbed on the adsorption filter is directly decomposed by the ultraviolet lamp 610 and the photocatalyst, without desorption and post-processing, with a simple structure and high efficiency, which improves the air purification effect.

[0160] Photocatalyst is mainly composed of nano-titanium dioxide, doped with a certain proportion of platinum and palladium. Photocatalyst is a substance that does not change itself under the irradiation of light, but can promote chemical reactions.

[0161] Under the irradiation of ultraviolet light, the photocatalyst can activate the oxygen and moisture adsorbed on the surface of the material, generate free hydroxyl radicals and active oxygen with extremely strong oxidizing ability, and cause an oxidation reaction to completely decompose the VOC adsorbed on the filter into carbon dioxide and water, thereby achieving the regeneration of the flexible adsorption filter 110.

[0162] In some embodiments, reference Figures 6 to 9 An ultraviolet lamp 610 , such as an LED ultraviolet lamp 610 , is disposed in the decomposition chamber 310 . The ultraviolet lamp 610 is configured to irradiate the regeneration zone 160 of the flexible adsorption filter 110 to decompose the VOC adsorbed on the regeneration zone 160 .

[0163] In some embodiments, reference Figure 6 A plurality of ultraviolet lamps 610 are arranged in the decomposition chamber 310, and the plurality of ultraviolet lamps 610 irradiate the regeneration zone 160 of the adsorption filter at different angles, thereby increasing the action area of ​​the ultraviolet light and the regeneration zone 160 and improving the VOC decomposition effect.

[0164] In some embodiments, the wavelength of ultraviolet light emitted by the ultraviolet lamp 610 is in the UVA and UVC range, which improves the effect of the photocatalyst and helps to improve the VOC decomposition effect.

[0165] In some embodiments, reference Figure 6An ultraviolet lamp 610A and an ultraviolet lamp 610B are arranged in the decomposition chamber 310. The ultraviolet lamp 610A emits ultraviolet light in the UVA band, and the ultraviolet lamp 610B emits ultraviolet light in the UVC band. The ultraviolet light of the two bands simultaneously irradiates the adsorption filter in the decomposition chamber 310, and the VOC adsorbed on the filter is completely decomposed, so that the adsorption filter can be regenerated. The regenerated adsorption filter enters the windward side again to continue to adsorb VOC in the air.

[0166] In some embodiments, reference Figure 7 The inner wall 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, emission will occur, and since the decomposition chamber 310 is a sealed structure, no ultraviolet light will leak out, so that all ultraviolet light can irradiate the regeneration area 160 of the adsorption filter, thereby improving the regeneration effect.

[0167] 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.

[0168] In some embodiments, the decomposition chamber 310 is made of galvanized sheet material, and then a reflector is attached to the inner wall to emit excess ultraviolet rays, promote the absorption of ultraviolet rays by the photocatalyst in the adsorption material, and improve the regeneration efficiency.

[0169] In some embodiments, reference Figure 8 A mercury lamp 620 (ultraviolet lamp tube) is arranged in the decomposition chamber 310 , and the mercury lamp 620 irradiates ultraviolet light toward the flexible adsorption filter 110 .

[0170] In some embodiments, reference Figure 8 The LED ultraviolet lamp 610 and the mercury lamp 620 are simultaneously arranged in the decomposition chamber 310, and two light sources are used to improve the regeneration efficiency of the flexible adsorption filter 110.

[0171] In some embodiments, reference Figure 6 The flexible adsorption filter 110 is in a straight-line closed ring structure. A decomposition cabin 310 is arranged at one end of the flexible adsorption filter 110 . An ultraviolet lamp 610 is arranged in the decomposition cabin 310 . A closed cabin 320 is arranged at the other end of the flexible adsorption filter 110 .

[0172] In some embodiments, reference Fig. 9 The flexible adsorption filter 110 is in a straight-line closed annular structure. Decomposition chambers 310 are arranged at opposite ends of the flexible adsorption filter 110 , and an ultraviolet lamp 610 is arranged in each decomposition chamber 310 .

[0173] In some embodiments, reference Figure 6, sensors are respectively provided at the air inlet 450 and the air outlet 460 of the air purification device, which are denoted as the air inlet sensor 810 and the air outlet sensor 820. The air inlet sensor 810 is configured to detect the VOC concentration at the air inlet 450, denoted as a. The air outlet sensor 820 is configured to detect the VOC concentration at the air outlet 460, denoted as b.

[0174] In some embodiments, reference Fig.14 A control system 5 is provided in the decomposition chamber 310, and the control system 5 is configured to perform intelligent control on the air purification device.

[0175] The difference between the VOC concentration a at the air inlet 450 and the VOC concentration b at the air outlet 460 is c. The control system 5 determines the saturation state of the flexible adsorption filter 110 according to the values ​​of a, b and c, and adjusts the power of the ultraviolet lamp 610 and the rotation speed of the flexible adsorption filter 110 to avoid the reduction of the purification effect caused by the saturation of the filter in the adsorption area 150, thereby improving the regeneration efficiency and the air purification effect.

[0176] The control system 5 controls the residence time of the flexible adsorption filter 110 in the decomposition chamber 310 by controlling the rotation speed of the flexible adsorption filter 110 to achieve a better regeneration requirement and thus improve the purification effect.

[0177] In some embodiments, the air purification device has an automatic cleaning mode. After the system enters the automatic cleaning mode, the fan of the air conditioner is turned off or the air inlet is closed, no air flows through the flexible adsorption filter 110, the ultraviolet lamp 610 runs at the highest power, and the driving shaft 210 runs at the lowest speed to decompose and regenerate the VOC adsorbed on the flexible adsorption filter 110.

[0178] When the system detects that the flexible adsorption filter 110 rotates N (eg, 3) cycles, the self-cleaning mode ends, the system shuts down, and waits for the next instruction from the user.

[0179] [Air purification device uses plasma regeneration]

[0180] In some embodiments, reference Fig.10 The air purification device uses plasma, and the decomposition catalyst 130 is an electrocatalyst. The flexible adsorption filter 110 is loaded with an electrocatalyst, and the VOC adsorbed on the filter is directly decomposed by the action of plasma and electrocatalyst, without desorption and post-processing, with a simple structure and high efficiency, which improves the air purification effect.

[0181] The electrocatalyst is made of semiconductor oxides of skeleton nickel, nickel boride, tungsten carbide, sodium tungsten bronze, spinel type and tungsten ore type, and has high catalytic efficiency.

[0182] In some embodiments, reference Figures 10 to 12, the rotating shaft 230 is conductive and is grounded.

[0183] A high-voltage electrode 630 is disposed in the decomposition chamber 310. A discharge gap is formed between the high-voltage electrode 630 and the rotating shaft 230. The adsorption filter 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 VOC adsorbed on the adsorption filter.

[0184] A high-frequency and high-voltage alternating electric field is formed between the high-voltage electrode 630 and the rotating shaft 230, and the voltage peak-to-peak value can reach 30,000 V / cm. A discharge gap is formed between the high-voltage electrode 630 and the rotating shaft 230, and the flexible adsorption filter 110 circulates through the discharge gap. When the flexible adsorption filter 110 with VOC passes through the discharge gap, the chemical bonds of some VOC molecules are directly interrupted by the high-voltage electric field, and react under the action of the electrocatalyst to generate carbon dioxide and water.

[0185] In addition, the high-frequency and high-voltage alternating electric field can also directly ionize water vapor to generate free hydroxyl radicals and active oxygen with extremely strong oxidizing ability, and an oxidation reaction occurs to completely decompose the VOC adsorbed on the filter into carbon dioxide and water. Therefore, after the flexible adsorption filter 110 passes through the discharge gap, the VOC adsorbed inside will be decomposed, and the flexible adsorption filter 110 can be regenerated and return to the adsorption area 150 for adsorption.

[0186] In some embodiments, reference Fig.10 The flexible adsorption filter 110 is in a straight-line closed annular structure. A decomposition chamber 310 is disposed at one end of the flexible adsorption filter 110 , and a closed chamber 320 is disposed at the other end. A high-voltage electrode 630 is disposed in the decomposition chamber 310 .

[0187] Of the two rotating shafts 230 (including the driving shaft 210 and the driven shaft 220 ), the rotating shaft 230 (eg, the driving shaft 210 ) close to the decomposition chamber 310 is conductive and grounded.

[0188] In some embodiments, reference Fig.13 The flexible adsorption filter 110 is in a closed ring structure in the shape of a straight line. Decomposition chambers 310 are arranged at opposite ends of the flexible adsorption filter 110. A high-voltage electrode 630 is arranged 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 rotating shaft 230 adjacent thereto.

[0189] In some embodiments, the rotating shaft 230 that needs to be grounded is made of conductive metal, such as aluminum alloy, stainless steel, or copper, etc. The rotating shaft 230 and the housing 4 of the air purification device are simultaneously connected to the ground wire of the power supply.

[0190] For example, the driving shaft 210 is conductive and grounded. On one hand, the driving shaft 210 provides power for the flexible adsorption filter 110 , and on the other hand, it is reliably grounded.

[0191] In some embodiments, reference Fig.11 The air purification device is equipped with a third power supply 730 for supplying power to the high-voltage electrode 630, and the third power supply 730 is a high-voltage power supply.

[0192] In some embodiments, reference Fig.25 The high voltage electrode 630 includes a metal electrode 631 and an insulating medium 632 layer. The metal electrode 631 is connected to the third power source 730 , and the insulating medium 632 layer is wrapped around the outer periphery of the metal electrode 631 .

[0193] The high voltage electrode 630 includes a high voltage line 633 , and the high voltage line 633 is connected to the third power source 730 .

[0194] The high voltage electrode 630 includes a silicone rubber 634 configured to seal the metal electrode 631 to the interior of the insulating medium 632 .

[0195] In some embodiments, the high voltage electrode 630 is disposed in parallel with the rotating shaft 230 , and a discharge gap is formed between the high voltage electrode 630 and the rotating shaft 230 .

[0196] The discharge gap is comparable to the thickness of the flexible adsorption filter 110 , so as to facilitate the passing of the flexible adsorption filter 110 and ensure the decomposition of VOC.

[0197] In some embodiments, reference Fig.10 or Fig.12 A control system 5 is provided in the decomposition chamber 310, and the control system 5 is configured to perform intelligent control on the air purification device.

[0198] The control system 5 determines the saturation state of the flexible adsorption filter 110 according to the VOC concentration value a on the air inlet side, the VOC concentration value b on the air outlet side, and the difference c between the inlet and outlet VOC concentration values, and adjusts the release voltage of the high-voltage electrode 630 and the rotation speed of the flexible adsorption filter 110 to avoid the reduction of the purification effect due to the saturation of the filter in the adsorption area 150, thereby improving the regeneration efficiency and the air purification effect.

[0199] The control system 5 controls the residence time of the flexible adsorption filter 110 in the decomposition chamber 310 by controlling the rotation speed of the flexible adsorption filter 110 to achieve a better regeneration requirement and thus improve the purification effect.

[0200] In some embodiments, the air purification device has an automatic cleaning mode. After the control system 5 enters the automatic cleaning mode, the fan of the air conditioner is turned off or the air inlet is closed, no air flows through the flexible adsorption filter 110, the third power supply 730 operates at the highest output voltage, and the driving shaft 210 operates at the lowest speed to decompose and regenerate the VOC adsorbed on the flexible adsorption filter 110.

[0201] When the system detects that the flexible adsorption filter 110 rotates N (eg, 3) cycles, the self-cleaning mode ends, the system shuts down, and waits for the next instruction from the user.

[0202] [The air purification device uses a photoelectric combination method to regenerate]

[0203] In some embodiments, reference Fig.13 The air purification device adopts a photoelectric method, that is, a combination of ultraviolet light and plasma. The flexible adsorption filter 110 is loaded with photocatalysts and electrocatalysts to directly decompose the VOC adsorbed on the filter without desorption and post-treatment. It has a simple structure and high efficiency. The dual effects of ultraviolet light and plasma further improve the air purification effect.

[0204] 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 flexible adsorption filter 110 circulates through the discharge gap.

[0205] In some embodiments, the air purification device has an automatic cleaning mode. After the control system 5 enters the automatic cleaning mode, the fan of the air conditioner is turned off or the air inlet is closed, no air flows through the flexible adsorption filter 110, the third power supply 730 and the ultraviolet lamp 610 operate at the highest power, and the drive shaft 210 operates at the lowest speed to decompose and regenerate the VOC adsorbed on the flexible adsorption filter 110.

[0206] When the system detects that the flexible adsorption filter 110 rotates N (eg, 3) cycles, the self-cleaning mode ends, the system shuts down, and waits for the next instruction from the user.

[0207] [Air purification device uses microwave regeneration]

[0208] In some embodiments, reference Fig.18 The air purification device adopts microwave method, and the decomposition catalyst 130 is a microwave catalyst. The flexible adsorption filter 110 is loaded with a microwave catalyst, and the VOC adsorbed on the adsorption filter is directly decomposed by the high-voltage electric field emitted by the microwave generator 640 and the microwave catalyst, without desorption and post-processing. The structure is simple, the efficiency is high, and the air purification effect is improved.

[0209] The microwave catalyst is made of LiCoO_2 / AC composite oxide, Cu-Mn-Ce / cordierite, magnesium-doped manganese dioxide catalyst, hopcalite catalyst and other catalysts, and has high catalytic efficiency.

[0210] In some embodiments, reference Fig.18 A microwave generator 640 is arranged in the decomposition chamber 310. The microwave generator 640 is arranged in the decomposition chamber 310. The microwave generator 640 emits a specific high-frequency and high-voltage electromagnetic field into the decomposition chamber 310, and resonates with the microwave catalyst adsorbed on the flexible adsorption filter 110. The microwave catalyst is a polar molecule. Under the action of the electromagnetic field, these polar molecules change from the original random distribution state to the polarity arrangement orientation according to the electric field. Under the action of the high-frequency electromagnetic field, these orientations change continuously according to the frequency of the alternating electromagnetic field. If the molecules want to rearrange themselves in the direction of the constantly changing high-frequency electromagnetic field, they must overcome the interference and obstruction of the original thermal motion of the molecules and the interaction between the molecules, and produce intense friction. In this microscopic process, the microwave energy is converted into the heat of the catalyst, and the macroscopic manifestation is the temperature increase. The catalyst itself can reduce the ignition temperature of VOC (flameless combustion), and coupled with the heating effect of the microwave, the VOC gas is rapidly self-ignited and decomposed into carbon dioxide and water.

[0211] In some embodiments, reference Fig.18 The flexible adsorption filter 110 is in a straight-line closed annular structure. A decomposition chamber 310 is disposed at one end of the flexible adsorption filter 110 , and a closed chamber 320 is disposed at the other end. A microwave generator 640 is disposed on the decomposition chamber 310 .

[0212] In some embodiments, reference Fig.19 The flexible adsorption filter screen 110 is in a straight-line closed annular structure. Decomposition chambers 310 are arranged at opposite ends of the flexible adsorption filter screen 110 , and a microwave generator 640 is arranged on each decomposition chamber 310 .

[0213] In some embodiments, reference Fig.18 A control system 5 is provided in the decomposition chamber 310, and the control system 5 is configured to perform intelligent control on the air purification device.

[0214] The control system 5 determines the saturation state of the flexible adsorption filter 110 according to the VOC concentration value a on the air inlet side, the VOC concentration value b on the air outlet side, and the difference c between the inlet and outlet VOC concentration values, and adjusts the power of the microwave generator 640 and the rotation speed of the flexible adsorption filter 110 to avoid the reduction of the purification effect caused by the saturation of the filter in the adsorption area 150, thereby improving the regeneration efficiency and the air purification effect.

[0215] In some embodiments, the air purification device has an automatic cleaning mode. After the system enters the automatic cleaning mode, the fan of the air conditioner is turned off or the air inlet is closed, no air flows through the flexible adsorption filter 110, the microwave generator 640 operates at the maximum power, and the drive shaft 210 operates at the lowest speed to decompose and regenerate the VOC adsorbed on the flexible adsorption filter 110.

[0216] When the system detects that the flexible adsorption filter 110 rotates N (eg, 3) cycles, the self-cleaning mode ends, the system shuts down, and waits for the next instruction from the user.

[0217] [Installation structure of air purification device]

[0218] In some embodiments, reference Figure 20 to Figure 23 The air purification device includes a housing 4, which is a rectangular frame structure, an air inlet 450 is arranged on a first side of the housing 4, an air outlet 460 is arranged on a second side, and the first side is opposite to the second side. In other words, the air inlet 450 is arranged on the front side of the housing 4, and the air outlet 460 is arranged on the rear side, and the air inlet 450 and the air outlet 460 are connected to each other front and back.

[0219] An air circulation channel is formed between the air inlet 450 and the air outlet 460 . Air flows into the air circulation channel through the air inlet 450 and then flows out from the air outlet 460 .

[0220] The first end of the housing 4 is provided with a first space, and the second end is provided with a second space. The first end is opposite to the second end, and the first space and the second space are distributed at opposite ends of the air circulation channel. In other words, the first space is provided at the left end of the housing 4, and the second space is provided at the right end. The first space and the second space are provided opposite to each other on the left and right. The first space and the second space are closed spaces, which are recorded as closed cabin 320.

[0221] The flexible adsorption filter 110 is disposed in the housing 4, referring to Fig.23 The portion of the flexible adsorption filter 110 facing the air flow channel is the adsorption zone 150, and the rest of the flexible adsorption filter 110 is located in the first space and the second space. In other words, the adsorption zone 150 of the flexible adsorption filter 110 faces the air inlet 450 and the air outlet 460, and the regeneration zone 160 is located in the closed cabin 320.

[0222] A decomposition unit is disposed in at least one closed cabin 320, and the decomposition unit is configured to act with the decomposition catalyst 130 on the flexible adsorption filter 110 to decompose VOC. For example, the decomposition unit is an ultraviolet lamp 610, a high-voltage electrode 630, or a microwave generator 640.

[0223] The air purification device has a flat rectangular structure as a whole. The flexible adsorption filter 110, the driving device, the decomposition part, and the closed cabin 320 are all integrated on the shell 4. The overall structure is compact and the volume is small.

[0224] In some embodiments, reference Fig.21 The housing 4 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-shaped structures. The first side plate 410 is provided with an air inlet 450, and the second side plate 420 is provided with an air outlet 460.

[0225] The first side frame 430 is a U-shaped frame structure, 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 form a rectangular frame structure, and the first side panel 410 and the second side panel 420 are fixed on opposite sides of the rectangular frame structure.

[0226] In some embodiments, reference Fig. 22 , flanges are provided on the sides surrounding the air inlet 450 and the air outlet 460. In other words, referring to Fig.28 A first flange 411 is disposed on the first side plate 410 , and the first flange 411 is disposed around the air inlet 450 ; a second flange 421 is disposed on the second side plate 420 , and the second flange 421 is disposed around the air outlet 460 .

[0227] The first flange 411 and the second flange 421 are provided with sealing parts, such as sealing strips, which are configured to contact with the flexible adsorption filter 110 to prevent the air in the first space and the second space from flowing out.

[0228] In some embodiments, reference Fig. 22 and Fig.23 The flexible adsorption filter 110 is in a straight-line closed ring structure. The flexible adsorption filter 110 forms two adsorption areas 150. The two adsorption areas 150 are arranged at intervals along the air flow direction. One end of the two adsorption areas 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.

[0229] In some embodiments, the air purification device includes a driving unit 2 , which is configured to drive the flexible adsorption filter 110 to rotate.

[0230] Reference Figure 21 to Figure 23The air purification device further 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 flexible adsorption filter 110 to rotate. Specifically, the driving mechanism includes a motor 510, the power output end of the motor 510 is connected to the first pulley 520, the shaft end of one of the rotating shafts 230 (driving shaft 210) is connected to the second pulley 530, and a belt 540 is arranged between the first pulley 520 and the second pulley 530. When the motor 510 is started, the driving shaft 210 is rotated through the transmission of the first pulley 520, the belt 540 and the second pulley 530, and the driving shaft 210 drives the flexible adsorption filter 110 to rotate.

[0231] Reference Fig. 27 A plane portion 233 is provided on one axial end of the driving shaft 210 , and the plane portion 233 is configured to cooperate with the second pulley 530 to prevent the two from sliding relative to each other.

[0232] In some embodiments, reference Fig.21 and Fig.23 The driving part 2 is fixed to the top of the housing 4. A mounting frame 550 is fixedly arranged inside the second side frame 440, and the motor 510 is fixedly arranged on the mounting frame 550. The power output end of the motor 510 extends upward from 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 470 is fixedly arranged on the upper side of the second side frame 440, and the cover 470 covers the first pulley 520, the belt 540 and the second pulley 530.

[0233] Bearings 240 are installed on the inner sides of the first side frame 430 and the second side frame 440 respectively. The shaft ends of the driving shaft 210 and the driven shaft 220 cooperate with the bearings 240 on the corresponding sides respectively to realize the installation of the driving shaft 210 and the driven shaft 220 in the housing 4.

[0234] In some embodiments, reference Fig.23 A decomposition cabin 310 is provided at one end of the shell 4, and a closed cabin 320 is provided at the other opposite end.

[0235] A high voltage electrode 630 is provided in the decomposition chamber 310. An insulating fixing seat 480 is provided on the inner wall of the decomposition chamber 310. Fig.26 The insulating fixing seat 480 is provided with a mounting hole 481, and the end of the high-voltage electrode 630 is located in the mounting hole 481. The insulating fixing seat 480 is provided with a wiring groove 482 to facilitate the wiring of the high-voltage line 633.

[0236] The insulating fixing seat 480 is made of insulating materials such as polytetrafluoroethylene and nylon to prevent high voltage discharge from occurring between the high voltage electrode 630 and the shell 4 .

[0237] In some embodiments, reference Fig.23 The decomposition chamber 310 is provided with an ultraviolet lamp 610, and the ultraviolet lamp 610 is fixedly mounted on the first side frame 430. The ultraviolet lamp 610 extends in a vertical direction to increase the area of ​​the flexible adsorption filter 110 irradiated.

[0238] The ultraviolet lamp 610 is located on a side of the high voltage electrode 630 away from the flexible adsorption filter 110 so as not to affect the formation of a discharge gap between the high voltage electrode 630 and the driving shaft 210 and the flexible adsorption filter 110 passing through the discharge gap.

[0239] In some embodiments, reference Fig.24 Decomposition chambers 310 are respectively arranged at opposite ends of the shell 4, and a high-voltage electrode 630 and an ultraviolet lamp 610 are arranged in each decomposition chamber 310.

[0240] 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.

[0241] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited to this. Any changes or substitutions that can be easily thought of by technicians familiar with the technical field within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. An air purification device, characterized in that: include: A flexible adsorption filter is configured to adsorb pollutants in the air, a decomposition catalyst is loaded on the flexible adsorption filter, 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 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 decomposition part is arranged in the decomposition chamber, and the decomposition part is configured to act with the decomposition catalyst to decompose the pollutants adsorbed on the regeneration zone.

2. The air purification device according to claim 1, characterized in that: The flexible adsorption filter screen is in a closed annular structure, at least one decomposition chamber is arranged along the rotation direction of the closed annular structure, and the closed annular structure circulates through the decomposition chamber.

3. The air purification device according to claim 2, characterized in that: The flexible adsorption filter is in a closed ring structure in the shape of a letter "I", and the flexible adsorption filter forms two layers of adsorption areas, the two layers of adsorption areas are arranged at intervals along the air flow direction, one end of the two layers of adsorption areas forms a first end, and the other end forms a second end; The first end and the second end are provided with closed cabins, and the closed annular structure circulates through the closed cabins. At least one of the closed cabins is the decomposition cabin, and the decomposition part is provided in the decomposition cabin.

4. The air purification device according to claim 1, characterized in that: The air purification device comprises a driving unit, and the driving unit is configured to drive the flexible adsorption filter to circulate through the decomposition chamber; The driving part comprises a driving shaft and a driven shaft, and the driving shaft and the driven shaft are arranged at intervals along the rotation direction of the flexible adsorption filter screen.

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; The driving shaft and the driven shaft are provided with two spaced apart limit platforms along their axial directions, the flexible adsorption filter is located between the two limit platforms, and any one of the two limit platforms contacts the reinforcement 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 decomposition catalyst is a photocatalyst; The decomposition part is an ultraviolet lamp, which is arranged in the decomposition chamber and configured to irradiate the regeneration area of ​​the flexible adsorption filter to decompose the pollutants adsorbed on the regeneration area.

7. The air purification device according to any one of claims 1 to 5, characterized in that: The decomposition catalyst is a microwave catalyst; The decomposition part is a microwave generator, which is arranged on the decomposition chamber and configured to emit an electromagnetic field into the decomposition chamber to decompose the pollutants adsorbed on the regeneration area of ​​the flexible adsorption filter.

8. The air purification device according to any one of claims 1 to 5, characterized in that: The decomposition catalyst is an electrocatalyst; The air purification device further comprises a driving mechanism and a rotating shaft, wherein the driving mechanism is configured to drive the rotating shaft to rotate, and the rotating shaft is configured to drive the flexible adsorption filter to rotate, and the rotating shaft is conductive and grounded; The decomposition part is a high-voltage electrode, which 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. 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.

9. An air purification device, characterized in that: include: A flexible adsorption filter is configured to adsorb pollutants in the air, and a decomposition catalyst is loaded on the flexible adsorption filter; A decomposition chamber, wherein the flexible adsorption filter screen passes through the decomposition chamber, the portion of the flexible adsorption filter screen located within the decomposition chamber is a regeneration zone, and the portion of the flexible adsorption filter screen located outside the decomposition chamber is an adsorption zone, and air flows through the adsorption zone; The decomposition part is arranged in the decomposition chamber, and is configured to act with the decomposition catalyst loaded on the regeneration zone of the flexible adsorption filter to decompose the pollutants adsorbed on the regeneration zone.

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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