Air purification device, indoor unit and air conditioner

Abstract

The utility model discloses an air purification device, an indoor unit and an air conditioner. The air conditioner comprises the indoor unit and an outdoor unit. The indoor unit is connected with the outdoor unit. The indoor unit comprises an air purification device. The air purification device comprises an adsorption part, a decomposition part and a driving part. The adsorption part comprises an adsorption filter screen and a reinforcing part, the adsorption filter screen is configured to adsorb pollutants in air, and the reinforcing part is arranged at the end edge of the section of the adsorption filter screen. And the decomposition part is configured to desorb or decompose pollutants adsorbed on the adsorption filter screen so as to desorb and regenerate the adsorption filter screen. And the driving part is configured to generate relative motion between the adsorption filter screen and the decomposition part so as to adjust the acting positions of the adsorption filter screen and the decomposition part.

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 use of consumables and the service life of the adsorption materials, when the adsorption materials are used, the 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 circular rotor structures due to the properties of the materials. The rotor-type adsorption components, limited by their structural shape, cannot be used in flat air outlets or return air outlets on equipment such as duct machines, and have low space utilization. Summary of the invention

[0004] In response to the problems pointed out in the background technology, the present disclosure proposes an air purification device, an indoor unit and an air conditioner. The adsorption component adopts flexible adsorption material and is made into different shapes and sizes according to installation requirements to meet different installation requirements while improving the pollutant adsorption effect.

[0005] On the one hand, an air purification device is provided, including an adsorption part, a decomposition part and a driving part, the adsorption part includes an adsorption filter and a reinforcement part, the adsorption filter is configured to adsorb pollutants in the air, the reinforcement part is arranged at the end edge of the cross section of the adsorption filter, the decomposition part is configured to desorb or decompose the pollutants adsorbed on the adsorption filter to regenerate the adsorption filter, and the driving part is configured to generate relative movement between the adsorption filter and the decomposition part to adjust the action position of the adsorption filter and the decomposition part.

[0006] 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;

[0007] 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.

[0008] 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. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] 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.

[0010] Figure 1 is a structural diagram of an adsorption filter according to some embodiments;

[0011] Figure 2 is a schematic diagram of an adsorption filter material according to some embodiments;

[0012] Figure 3 for Figure 1 Section view along line AA;

[0013] Figure 4 is another structural diagram of an adsorption filter according to some embodiments;

[0014] Figure 5 is another structural diagram of an adsorption filter according to some embodiments;

[0015] Figure 6 is a structural diagram of an air purification device according to some embodiments;

[0016] Figure 7 is another partial structural diagram of an air purification device according to some embodiments;

[0017] Figure 8 is another partial structural diagram of an air purification device according to some embodiments;

[0018] Fig. 9 is another structural diagram of an air purification device according to some embodiments;

[0019] Fig.10 is another structural diagram of an air purification device according to some embodiments;

[0020] Fig.11 is another partial structural diagram of an air purification device according to some embodiments;

[0021] Fig.12 is another partial structural diagram of an air purification device according to some embodiments;

[0022] Fig.13 is another structural diagram of an air purification device according to some embodiments;

[0023] Fig.14 is another structural diagram of an air purification device according to some embodiments;

[0024] Fig.15 is another partial structural diagram of an air purification device according to some embodiments;

[0025] Fig.16 is another partial structural diagram of an air purification device according to some embodiments;

[0026] Fig.17 is another structural diagram of an air purification device according to some embodiments;

[0027] Fig.18 is another structural diagram of an air purification device according to some embodiments;

[0028] Fig.19 is another structural diagram of an air purification device according to some embodiments;

[0029] Fig. 20 is a structural diagram of an air purification device according to some embodiments;

[0030] Fig.21 is an exploded view of an air purification device according to some embodiments;

[0031] Fig. 22 is a partial cross-sectional view of an air purification device according to some embodiments;

[0032] Fig.23 is a cross-sectional view of an air purification device according to some embodiments;

[0033] Fig.24 Another cross-sectional view of an air purification device according to some embodiments

[0034] Fig.25 is a cross-sectional view of a high voltage electrode according to some embodiments;

[0035] Fig.26 is a structural diagram of a fixing portion according to some embodiments;

[0036] Fig. 27 is a structural diagram of a drive shaft according to some embodiments;

[0037] Fig.28 is a structural diagram of a first board according to some embodiments. DETAILED DESCRIPTION

[0038] 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.

[0039] 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.

[0040] 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.

[0041] 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.

[0042] “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.

[0043] “A and / or B” includes the following three combinations: A only, B only, and a combination of A and B.

[0044] 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.

[0045] 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).

[0046] 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.

[0047] 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.

[0048] 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.

[0049] 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.

[0050] 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.

[0051] [Air conditioner]

[0052] Some embodiments of the present disclosure provide an air conditioner.

[0053] 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.

[0054] In some embodiments, the air conditioner includes an outdoor unit.

[0055] In some embodiments, the air conditioner further comprises an indoor unit, and the indoor unit is connected to the outdoor unit.

[0056] 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.

[0057] 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.

[0058] 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.

[0059] 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.

[0060] 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.

[0061] 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.

[0062] 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.

[0063] [Indoor unit]

[0064] 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.

[0065] 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.

[0066] In some embodiments, the indoor unit further includes an air purification device 100, which is disposed at at least one of the indoor air outlet, the indoor air return outlet, and the air supply channel. The air purification device 100 is configured to purify the air flowing through to improve the indoor air quality.

[0067] The air purification device 100 can purify pollutants in the air, such as VOCs. Volatile organic compounds include toluene, xylene, formaldehyde, alcohols, etc.

[0068] [Air purification device]

[0069] In some embodiments, reference Fig. 20 and Fig.23 The air purification device 100 includes a first housing 4, which may be in a frame structure (such as a rectangular shape). The first housing 4 is configured to accommodate an adsorption component (such as a flexible adsorption filter), a driving component (such as a driving device), a decomposition component (such as a decomposition part), etc. of the air purification device 100.

[0070] In some embodiments, the air purification device 100 further includes an air inlet 450 , which is disposed on the first side of the first shell 4 .

[0071] In some embodiments, the air purification device 100 further includes an air outlet 460 , and the air outlet 460 is disposed on the second side of the first shell 4 , and the first side is disposed opposite to the second side.

[0072] For example, an air inlet 450 is disposed at the front side of the first housing 4, and an air outlet 460 is disposed at the rear side of the first housing 4, and the air inlet 450 and the air outlet 460 are directly opposite and connected to each other. In some embodiments, an air circulation channel is formed between the air inlet 450 and the air outlet 460, and air flows into the air circulation channel through the air inlet 450 and then flows out from the air outlet 460.

[0073] In some embodiments, reference Fig.21 The first shell 4 includes a first plate 410 (first side plate), and the air inlet 450 is arranged on the first plate 410.

[0074] In some embodiments, the first shell 4 further includes a second plate 420 (second side plate), the second plate 420 is disposed opposite to the first plate 410 , and the air outlet 460 is disposed on the second plate 420 .

[0075] In some embodiments, the first housing 4 further includes a first frame 430 (first side frame), and the first frame 430 includes a first sub-frame, a second sub-frame, and a third sub-frame connected thereto.

[0076] In some embodiments, the first housing 4 further includes a second frame 440 (second side frame), and the second frame 440 is fixedly connected to the first frame 430. For example, the first end of the second frame 440 is connected to the first sub-frame, and the second end of the second frame 440 is connected to the third sub-frame. The first frame 430 and the second frame 440 form a frame structure, and the first plate 410 and the second plate 420 are fixed on opposite sides of the frame structure.

[0077] In some embodiments, reference Fig. 22 and Fig.28 The first plate 410 includes a first main body portion 412 , and the air inlet 450 is disposed in the first main body portion 412 .

[0078] In some embodiments, the first plate 410 further includes a first flange 411 , the first flange 411 is connected to the first body portion 412 , and the first flange 411 is disposed around the air inlet 450 .

[0079] In some embodiments, the second plate 420 further includes a second body portion 422 , and the air outlet 460 is disposed in the second body portion 422 .

[0080] In some embodiments, the second plate 420 further includes a second flange 421 , the second flange 421 is connected to the second body portion 422 , and the second flange 421 is disposed around the air outlet 460 .

[0081] In some embodiments, the first housing 4 further includes at least one closed cabin 320. For example, the first housing 4 includes two closed cabins 320. A first space is disposed at a first end of the first housing 4, and a second space is disposed at a second end of the first housing 4, wherein the first end is opposite to the second end. The first space and the second space are distributed at opposite ends of the air circulation channel.

[0082] For example, the first space may be disposed at the left end of the first shell 4 and the second space may be disposed at the right end of the first shell 4. In this case, the first space and the second space are disposed opposite to each other. The first space and the second space are closed spaces, which are recorded as the closed cabin 320.

[0083] In some embodiments, the first housing 4 further includes at least one second sealing portion. For example, the first housing 4 includes two second sealing portions, which are respectively disposed at the first flange 411 and the second flange 421. The second sealing portion may be a sealing strip, which is configured to contact the flexible adsorption filter 110 to prevent the air in the first space and the second space from flowing out.

[0084] In some embodiments, reference Figure 1 The air purification device 100 includes an adsorption part 1 (flexible adsorption part). The adsorption part 1 is arranged in the first shell 4. The adsorption part 1 includes an adsorption filter 110 (flexible adsorption filter), and the adsorption filter 110 is arranged in the first shell 4. The adsorption filter 110 is configured to adsorb pollutants in the air, such as VOC.

[0085] In some embodiments, the adsorption filter 110 includes an adsorption material 140 (flexible adsorption material). Figure 2 The adsorption material 140 may be a porous adsorption material. For example, the adsorption material 140 may be an adsorption material with a high specific surface area and high flexibility, such as activated carbon fiber felt, activated carbon fiber cotton, or carbon fiber cloth.

[0086] In some embodiments, since the adsorption material 140 is a porous material, the edge of the adsorption material 140 has burrs and is easily deformed when pulled by an external force. Figure 1 and Figure 3 The adsorption part 1 further includes at least one reinforcement part 120, which is arranged in the height direction of the adsorption filter screen 110 (such as Figure 1 The reinforcement part 120 is configured to improve the structural strength of the adsorption filter 110. For example, a rubber seal can be made at the edge of the cross section of the adsorption filter 110 to form the reinforcement part 120, which is convenient for processing and manufacturing.

[0087] In some embodiments, at least one reinforcement portion 120 includes two reinforcement portions 120, referring to Figure 3, reinforcement parts 120 are respectively arranged at the two opposite cross-section ends of the adsorption filter screen 110. The arrangement of the two reinforcement parts 120 can improve the structural strength of the adsorption filter screen 110.

[0088] In some embodiments, reference Fig.23 , in the first shell 4, the portion of the adsorption filter 110 that is opposite to the air circulation channel is the first zone 150 (adsorption zone), and the adsorption filter 110 located in the first zone 150 is configured to adsorb pollutants in the air, such as VOC. The rest of the adsorption filter 110 (i.e., the portion located outside the air circulation channel) is the second zone 160 (regeneration zone). The VOC on the adsorption filter 110 located in the second zone 160 can be desorbed or decomposed. That is, the first zone 150 of the adsorption filter 110 is opposite to the air inlet 450 and the air outlet 460, and the second zone 160 of the adsorption filter 110 is located in the closed cabin 320.

[0089] In some embodiments, reference Figure 6 and Fig.19 The air purification device 100 further includes at least one decomposition unit 3, which is disposed in the closed cabin 320. The decomposition unit 3 is configured to desorb and decompose the VOC adsorbed on the adsorption filter 110, so as to desorb and regenerate the adsorption filter 110. In this way, the adsorption capacity of the adsorption filter 110 is improved, thereby improving the air purification effect of the air purification device 100.

[0090] For example, the decomposition unit 3 is configured to interact with the decomposition catalyst 130 on the adsorption filter 110 to decompose VOC. The decomposition unit 3 may include at least one of an ultraviolet lamp, a high voltage electrode, or a microwave generator.

[0091] It should be noted that, in some embodiments of the present disclosure, the closed cabin 320 containing the decomposition unit may be referred to as the decomposition cabin 320. The area where the air passes through the adsorption filter 110 is the first area 150 of the adsorption filter 110, and the area where the decomposition unit 3 acts on the adsorption filter 110 is the second area 160 of the adsorption filter 110.

[0092] In some embodiments, reference Figure 6 The air purification device 100 also includes a driving device, which is configured to cause relative movement between the adsorption filter 110 and the decomposition part 3 to adjust the relative position of the adsorption filter 110 and the decomposition part 3, so that the decomposition part 3 can act on different positions of the adsorption filter 110.

[0093] Driven by the driving device, the adsorption filter 110 and the decomposition part 3 generate relative movement, so that the first area 150 and the second area 160 on the adsorption filter 110 are continuously switched. In this way, the purification function and the desorption and regeneration function are realized, and the adsorption capacity of the adsorption filter 110 is improved.

[0094] In some embodiments, reference Figures 6 to 19 The driving device is configured to drive the adsorption filter 110 to move so that the first zone 150 and the second zone 160 are continuously switched. The adsorption filter 110 circulates through the decomposition part 3, and the adsorption filter 110 is desorbed and regenerated in the decomposition part 3, thereby realizing the cyclic use of the adsorption filter 110.

[0095] In some embodiments, the driving device is configured to drive the decomposition part 3 to move, so as to change the position where the decomposition part 3 acts on the adsorption filter 110. In this way, the first zone 150 and the second zone 160 are continuously switched, and the adsorption filter 110 is desorbed and regenerated in the decomposition part 3, so that the adsorption filter 110 can be used repeatedly.

[0096] In some embodiments, reference Fig.21 The air purification device 100 is a flat rectangular structure as a whole. For example, the length of the air purification device 100 in the left-right direction is greater than the length in the front-back direction. The air enters the air circulation channel through the air inlet 450 located on the front side of the first shell 4, and then flows out from the air outlet 460 located on the rear side of the first shell 4. In this way, the area of ​​the first zone is increased while ensuring the desorption and regeneration function of the second zone 160, thereby improving the air circulation effect of the air purification device 100 and the air purification effect.

[0097] In some embodiments, the adsorption unit 1, the driving device, and the decomposition unit 3 are integrated into the first housing 4. In this way, the installation of the air purification device 100 is facilitated, and the volume of the air purification device 100 is reduced, making the overall structure of the air purification device 100 compact.

[0098] In some embodiments, the adsorption filter 110 includes multiple layers of first areas 150, which are arranged in sequence along the air flow direction. The air flows through the multiple layers of first areas 150 during the flow process to achieve multiple adsorption of VOCs in the air, thereby improving the air purification effect.

[0099] In some embodiments, reference Figure 1 , Fig. 22 and Fig.23 The adsorption filter 110 is in a closed annular structure. The adsorption filter 110 includes two layers of first areas 150. The two layers of first areas 150 are arranged at intervals along the air flow direction.

[0100] The adsorption filter 110 further includes a first end portion 171 . The first end portion 171 is located at the first end of the two-layer first region 150 , and the first end portion 171 is arc-shaped.

[0101] The adsorption filter 110 further includes a second end portion 172 . The second end portion 172 is located at the second end of the two-layer first region 150 , and the second end portion 172 is arc-shaped.

[0102] The first end 171 and the second end 172 are located in the first space and the second space, respectively. For example, the first end 171 passes through the closed cabin 320 located at the left end of the first shell 4, and the second end 172 passes through the closed cabin 320 located at the right end of the first shell 4.

[0103] In some embodiments, the driving device includes a driving unit 5, and the driving unit 5 is configured to drive the adsorption filter 110 to rotate. Fig.21 and Fig.23 The driving unit 5 is fixedly arranged on the top of the first housing 4. For example, the driving unit 5 is fixed to the second frame 440. Figure 21 to Figure 23 The driving unit 5 includes a motor 510 , and the motor 510 is disposed in the first shell 4 .

[0104] In some embodiments, the driving unit 5 further includes a first pulley 520, which is disposed outside the first housing 4, for example, the first pulley 520 is disposed on a side of the second frame 440 away from the first frame 430. The power output end of the motor 510 is connected to the first pulley 520.

[0105] In some embodiments, the driving unit 5 further includes a second pulley 530, which is disposed outside the first housing 4, for example, the second pulley 530 is disposed on a side of the second frame 440 away from the first frame 430. The second pulley 530 is spaced apart from the first pulley 520.

[0106] In some embodiments, the driving unit 5 further includes a transmission belt 540 (belt), and the transmission belt 540 is disposed between the first pulley 520 and the second pulley 530 .

[0107] In some embodiments, the driving device further includes a transmission part 2. The transmission part 2 is connected to the driving part 5, and the transmission part 2 is configured to move under the drive of the driving part 5 to drive the adsorption filter screen 110 to rotate.

[0108] In some embodiments, the transmission part 2 includes at least one rotating shaft 230, and the rotating shaft 230 is disposed in the first housing 4, and the adsorption filter 110 can rotate around the rotating shaft 230. For example, the rotating shaft 230 cooperates with the reinforcing part 120 located at the end of the adsorption filter 110, thereby increasing the friction between the rotating shaft 230 and the reinforcing part 120, so as to drive the adsorption filter 110 to rotate.

[0109] In some embodiments, the at least one rotating shaft 230 includes two rotating shafts 230, and the adsorption filter 110 is disposed around the two rotating shafts 230. For example, the two rotating shafts 230 are respectively located at the first end 171 and the second end 172 of the adsorption filter 110.

[0110] At least one of the two rotating shafts 230 is the driving shaft 210. For example, one of the two rotating shafts 230 is the driving shaft 210 and the other is the driven shaft 220 (see Fig.21 ), or, the two rotating shafts 230 are the driving shafts 210.

[0111] In some embodiments, the shaft end of one of the two rotating shafts 230 (i.e., the driving shaft 210) is connected to the second pulley 530. After the motor 510 is started, the power output end of the motor 510 drives the first pulley 520 to rotate, and the first pulley 520 drives the second pulley 530 to rotate through the transmission belt 540, and further drives the driving shaft 210 to rotate through the second pulley 530.

[0112] In this way, the motor 510 realizes the rotation of the drive shaft 210 through the transmission of the first pulley 520, the transmission belt 540 and the second pulley 530, so that the drive shaft 210 can drive the adsorption filter 110 to rotate.

[0113] Reference Fig. 27 The rotating shaft 230 includes a rotating shaft body 234 , and the adsorption filter 110 is disposed around the rotating shaft body 234 .

[0114] The rotating shaft 230 also includes a matching portion 233 (planar portion), which is disposed at an axial end of the rotating shaft body 234 close to the second pulley 530. The matching portion 233 is configured to cooperate with the second pulley 530 to prevent relative sliding between the two and improve transmission efficiency.

[0115] In some embodiments, the air purification device 100 further includes a mounting frame 550, which is fixedly disposed on the inner side of the second frame 440, where the inner side refers to the side of the second frame 440 close to the first frame 430. The motor 510 is fixedly mounted on the mounting frame 550, and the power output end of the motor 510 extends toward the direction of the first pulley 520, for example, the power output end of the motor 510 extends upward from the second frame 440 to be connected to the first pulley 520.

[0116] In some embodiments, the first pulley 520, the transmission belt 540 and the second pulley 530 are respectively arranged on a side (such as the upper side) of the second frame 440 away from the first frame 430. The air purification device 100 also includes a second housing 470 (cover), which is fixedly mounted on a side of the second frame 440 away from the first frame 430, and the second housing 470 is configured to accommodate the first pulley 520, the transmission belt 540 and the second pulley 530.

[0117] In some embodiments, the air purification device 100 further includes at least one bearing 240, and the bearing 240 is disposed corresponding to the shaft end of the rotating shaft 230. For example, a bearing 240 is disposed at each of the two shaft ends of the driving shaft 210, and the driving shaft 210 is rotationally connected to the first housing 4 through the corresponding bearings 240. Similarly, a bearing 240 is also disposed at each of the two shaft ends of the driven shaft 220, and the driven shaft 220 is rotationally connected to the first housing 4 through the bearings 240.

[0118] For example, two bearings 240 are respectively installed on the side close to each other (i.e., the inner side) of the first frame 430 and the second frame 440, and the shaft ends of the driving shaft 210 and the driven shaft 220 are respectively matched with the bearings 240 on the corresponding sides, thereby realizing the installation of the driving shaft 210 and the driven shaft 220 in the first shell 4.

[0119] In some embodiments, reference Fig.23 A decomposition cabin 310 is provided at one end of the first shell 4, and a closed cabin 320 is provided at the other opposite end.

[0120] In some embodiments, the decomposition part 3 includes a high-voltage electrode 630, which is disposed in the decomposition chamber 310. A discharge gap is formed between the high-voltage electrode 630 and the driving shaft 210, and the adsorption filter 110 rotates through the discharge gap.

[0121] Here, high voltage refers to a voltage range that can ionize and decompose the VOC adsorbed on the adsorption filter 110 without damaging the adsorption filter 110. The voltage range of the high voltage electrode 630 is related to the distance between the high voltage electrode 630 and the rotating shaft 230. For example, the voltage of the high voltage electrode 630 can be 5kV, 10kV, 15kV, etc.

[0122] In some embodiments, a high-frequency and high-voltage alternating electric field is formed between the high-voltage electrode 630 and the rotating shaft 230, and the electric field strength can reach 30,000 V / cm, thereby improving the ionization effect on VOC.

[0123] In some embodiments, the decomposition part 3 further includes a high voltage line 633 , which is coupled to the high voltage electrode 630 to transmit current to the high voltage electrode 630 .

[0124] In some embodiments, the decomposition part 3 further includes two fixing parts 480 (insulating fixing seats), and the two fixing parts 480 are respectively arranged at two ends of the high-voltage electrode 630. The high-voltage motor 630 is fixedly arranged on the inner wall of the decomposition chamber 310 through the fixing parts 480.

[0125] Reference Fig.26 The fixing part 480 includes a fixing part body 483. The fixing part body 483 is fixedly disposed on the inner wall of the decomposition chamber 310.

[0126] In some embodiments, the fixing portion 480 further includes a mounting hole 481 , and an end portion of the high voltage electrode 630 is located in the mounting hole 481 .

[0127] In some embodiments, the fixing portion 480 further includes a wiring groove 482, and the high-voltage wire 633 can be coupled to the high-voltage motor 630 via the wiring groove 482. It can be understood that the provision of the wiring groove 482 facilitates the wiring of the high-voltage wire 633.

[0128] In some embodiments, the fixing portion 480 is made of insulating materials such as polytetrafluoroethylene, nylon, etc., so as to prevent high-voltage discharge from occurring between the end of the high-voltage electrode 630 and the first shell 4 .

[0129] In some embodiments, reference Fig.23 The decomposition part 3 further includes an ultraviolet lamp 610, which is disposed in the decomposition chamber 310. For example, the ultraviolet lamp 610 is fixedly mounted on the first frame 430.

[0130] In some embodiments, the ultraviolet lamp 610 extends in a vertical direction to increase the irradiated area of ​​the adsorption filter 110 .

[0131] In some embodiments, the ultraviolet lamp 610 is located on a side of the high-voltage electrode 630 away from the adsorption filter 110 , so as to avoid affecting the formation of a discharge gap between the high-voltage electrode 630 and the driving shaft 210 .

[0132] In some embodiments, reference Fig.24 The two opposite ends of the first shell 4 are respectively provided with decomposition chambers 310, and the two decomposition chambers 310 are respectively provided with high voltage electrodes 630 and ultraviolet lamps 610. In this way, the desorption efficiency of VOC absorbed by the adsorption filter 110 can be improved.

[0133] [Adsorption filter of air purification device]

[0134] In some embodiments, reference Figure 1 , Figure 4 or Figure 5The adsorption filter 110 is arranged around to form a multi-layer first area 150, and the multi-layer first area 150 is configured to contact the air. The air flows through the multi-layer first area 150 during the flow process to achieve multiple adsorption of the air, thereby improving the adsorption effect of pollutants and improving the air purification effect.

[0135] In some embodiments, the adsorption filter 110 is a microporous adsorption material, and the micropores face different directions. The micropores have micropores facing the windward side and micropores facing the leeward side. Figure 1 and Figure 3 The adsorption filter 110 includes two layers of first regions 150, namely a first layer of first region 150A and a second layer of first region 150B. The two layers of first regions 150 are arranged at intervals along the air flow direction.

[0136] Taking the case where air passes through the adsorption filter 110 from front to back as an example, when the air containing VOC flows through the adsorption filter 110, it first flows through the first layer first zone 150A on the front side, and the air contacts the windward surface of the first layer first zone 150A. A portion of the VOC in the air will be firmly adsorbed into the micropores facing the windward side, and will not easily fall off from the first zone 150. The remaining VOC that is not adsorbed will continue to flow with the air to the windward side of the second layer first zone 150B on the rear side, and the micropores on the second layer first zone 150B facing the windward side will perform secondary adsorption on the VOC in the air. By analogy, when the adsorption filter includes more layers of the first zone 150, the air can flow through the multiple layers of the first zone 150 in sequence, so that multiple adsorption of VOC can be achieved, thereby improving the adsorption effect of VOC and improving the air purification effect.

[0137] Since the adsorption filter 110 includes micropores facing the windward side and the leeward side, when the wind direction relative to the adsorption filter 110 changes, for example, when the wind direction is opposite, the residual VOC can still be adsorbed, thereby improving the adsorption effect of the adsorption filter 110.

[0138] In some embodiments, reference Figure 1 , Figure 4 or Figure 5 The adsorption filter 110 is in a closed annular structure, so that the adsorption filter 110 can rotate cyclically under the drive of the driving device, thereby realizing the continuous conversion of the first zone 150 and the second zone 160, realizing the purification and desorption regeneration functions, and improving the adsorption capacity of the adsorption filter 110.

[0139] Reference Figure 1 , Figure 4 or Figure 5 The adsorption filter 110 can be formed into different usage forms according to different usage spaces, thereby solving the problem that hard adsorption materials cannot be smoothly transmitted in limited spaces, especially in special-shaped spaces.

[0140] In some embodiments, reference Figure 1 and Figure 3 The adsorption filter 110 is in a closed ring structure in the shape of a letter "I". At this time, the adsorption filter 110 forms two layers of first areas 150, which are respectively recorded as the first layer first area 150A and the second layer first area 150B. The two layers of first areas 150 extend in a direction perpendicular to the air flow direction, and the two layers of first areas 150 are arranged at intervals along the air flow direction.

[0141] In some embodiments, there is an arc-shaped transition between the two first regions 150. One end of the two first regions 150 forms an arc-shaped first end 171, and the other end of the two first regions 150 forms 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 adsorption filter 110 to rotate.

[0142] Reference Figure 6 , the air containing VOC flows through the first zone 150A and the first zone 150B in sequence, thereby achieving secondary adsorption of VOC.

[0143] 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, and also diffuse from the outside to the inside.

[0144] In some embodiments, reference Figure 5 The adsorption filter 110 is a special-shaped closed ring structure. The adsorption filter 110 is turned under the action of the rotating shaft 230 to bend into a closed ring structure of different shapes. In this way, it is beneficial to increase the contact area between the air and the adsorption filter 110 in a limited space, thereby improving the adsorption effect on VOC.

[0145] For example, refer to Figure 5 The adsorption filter 110 is in a closed annular structure (such as an L-shaped structure). Air flows from one side of the closed annular structure (such as Figure 5 The lower side shown) flows to the other side (as shown Figure 5 The upper side shown in the figure) passes through the two layers of the first zone 150 in sequence, thereby improving the adsorption effect of VOC.

[0146] In some embodiments, the adsorption filter 110 is made by cutting and sewing the adsorption material 140. According to the size of the installation space, the adsorption filter 110 can be made into different shapes and sizes to meet different installation requirements.

[0147] In some embodiments, the ends of the adsorption material 140 are sewn together to form a closed ring structure. Figure 1 The adsorption material 140 further includes a connection portion 180 (seam), and the connection portion 180 can connect the end to the end of the adsorption material 140.

[0148] In some embodiments, the adsorption filter 110 is in the form of an annular conveyor belt structure, and the driving device directionally transports the VOC adsorbed on the adsorption filter 110, adsorbs the VOC and transports it to a predetermined area (such as the decomposition part 3) for desorption or decomposition, and repeats this cycle to achieve the reuse of the adsorption filter 110.

[0149] In some embodiments, the manufacturing process of the adsorption filter 110 includes the following steps.

[0150] First, according to the VOC treatment efficiency and wind resistance requirements of the adsorption filter 110, a suitable activated carbon fiber felt is selected, the thickness of the activated carbon fiber felt ranges from 3 to 10 mm, and the selected activated carbon fiber felt is activated at a set temperature (e.g., 1000°C) and a set time (e.g., 30 minutes).

[0151] Then, a suitable catalyst is selected according to the requirements of the desorption regeneration process, and 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 (for example, 30 minutes), and then taken out and dried.

[0152] Secondly, the activated carbon fiber felt is sintered at a high temperature according to the tolerable temperature of the catalyst, and the activated carbon fiber felt is cooled to form a carbon fiber adsorption material with a catalyst.

[0153] Afterwards, the activated carbon fiber felt is cut according to the required spatial size requirements, and the head and tail ends of the cut activated carbon fiber felt are spliced ​​and sutured to form a splicing seam (i.e., the connecting portion 180). Figure 1 At this time, a ring-shaped adsorption filter 110 is formed.

[0154] Finally, the end surfaces of both sides of the annular activated carbon fiber felt are packaged by a glue coating machine to form a reinforcement part 120. At this point, the adsorption filter screen 110 is completed.

[0155] In some embodiments, the adsorption unit 1 further includes a decomposition catalyst 130, and the decomposition catalyst 130 is disposed on the adsorption filter 110. Figure 2 The decomposition catalyst 130 is supported on the adsorption material 140 .

[0156] It is understandable that the decomposition catalyst 130 cooperates with the decomposition unit 3 to decompose the VOC adsorbed on the second zone 160 of the adsorption filter 110. This method does not require desorption and post-treatment, simplifies the structure of the decomposition unit 3, improves the decomposition efficiency of VOC, and thus improves the air purification effect.

[0157] In some embodiments, the decomposition catalyst 130 includes one or more of a manganese catalyst, platinum metal, and palladium metal in corresponding proportions according to the type of the decomposition unit 3. For example, the decomposition catalyst 130 is mainly a manganese catalyst, doped with a preset proportion of platinum metal and palladium metal, so that the catalytic efficiency can be improved.

[0158] [Driving device of air purification device]

[0159] In some embodiments, reference Figure 5 or Figure 6 The transmission 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 adsorption filter screen 110, and the adsorption filter screen 110 is wound around the driving shaft 210 and the driven shaft 220.

[0160] Reference Figure 5 The adsorption filter 110 is in a special-shaped closed ring structure. The adsorption filter 110 is turned and bent around a plurality of rotating shafts 230 . At least one rotating shaft 230 among the plurality of rotating shafts 230 is a driving shaft 210 , and the remaining rotating shafts 230 are driven shafts 220 .

[0161] Reference Figure 6 The adsorption filter 110 is in a straight-line closed ring structure. A driving shaft 210 is disposed at one end of the adsorption filter 110 , and a driven shaft 220 is disposed at the other end.

[0162] Reference Fig. 27 The air purification device 100 further includes at least one limiting portion 232 (limiting platform). For example, two limiting portions 232 are arranged at intervals in the axial direction of the rotating shaft body 234, and the limiting portions 232 extend along the circumferential direction of the rotating shaft 230. The limiting platform is configured as an annular boss structure, and the adsorption filter 110 is located between the two limiting portions 232, and the two limiting portions 232 limit the axial position of the adsorption filter 110.

[0163] In some embodiments, the limiting portion 232 contacts the reinforcing portion 120 to drive the adsorption filter 110 to rotate.

[0164] In some embodiments, the limiting portion 232 is in contact with the reinforcing portion 120 , and the adsorption filter screen 110 is driven to rotate by the rotation shaft 230 through the friction force therebetween.

[0165] In some embodiments, a gear (e.g., a flexible gear) is disposed on the limiting portion 232, and a flexible rack (e.g., a flexible rack) is correspondingly disposed on the reinforcing portion 120. The arrangement of the flexible gear and the flexible rack facilitates the setting of the shape of the adsorption filter 110. The flexible gear meshes with the flexible rack, thereby driving the adsorption filter 110 to rotate through the rotation of the rotating shaft 230.

[0166] [Disassembly of air purifier]

[0167] In some embodiments, reference Figures 6 to 19 The decomposition part 3 is arranged in the closed cabin 320, and the closed cabin 320 provided with the decomposition part 3 is also called the decomposition cabin 310. The adsorption filter 110 circulates through the decomposition cabin 310 under the drive of the driving device. The part of the adsorption filter 110 located in the decomposition cabin 310 is the second zone 160, and the part located outside the decomposition cabin 310 is the first zone 150, and the air flows through the first zone 150 into the indoor space.

[0168] It is understandable that the decomposition chamber 310 is a closed cavity, and the adsorption filter 110 is desorbed and regenerated in the decomposition chamber 310 .

[0169] In some embodiments, the decomposition unit 3 includes a decomposition portion, which is disposed in the decomposition chamber 310 , and the decomposition portion is configured to act with the decomposition catalyst 130 on the adsorption filter 110 to decompose the pollutants adsorbed on the second zone 160 .

[0170] The adsorption filter 110 can be made into different usage forms according to the usage space, and the decomposition chamber 310 is set to avoid the air circulation path. The adsorption filter 110 circulates through the decomposition chamber 310 and interacts with the decomposition part in the decomposition chamber 310 to achieve desorption and regeneration of the adsorption filter 110. Such a setting makes the overall structure of the air purification device 100 compact and improves the air purification effect.

[0171] In some embodiments, reference Figure 5 , Figure 6 or Fig.10 The 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.

[0172] In this way, according to the extension direction of the adsorption filter 110, one decomposition chamber 310 or a plurality of decomposition chambers 310 are provided, so that the desorption and regeneration efficiency of the adsorption filter 110 can be improved, thereby improving the air purification effect.

[0173] In some embodiments, reference Figure 6 , Fig.10 or Fig.14 The adsorption filter 110 is a closed ring structure, and the adsorption filter 110 forms two layers of first areas 150, and the two layers of first areas 150 are arranged at intervals along the air flow direction. One end of the two layers of first areas 150 forms an arc-shaped first end 171, and the other end of the two layers of first areas 150 forms an arc-shaped second end 172.

[0174] The first end 171 and the second end 172 are provided with closed cabins 320 respectively, and the adsorption filter screen 110 of the closed annular structure circulates through the closed cabins 320. At least one of the two closed cabins 320 is a decomposition cabin 310 to achieve regeneration of the adsorption filter screen 110.

[0175] It is understandable that the closed cabin 320 can play a sealing role to prevent polluted air from flowing from the side of the first shell 4 to the air outlet 460 without passing through the adsorption filter 110, so that the air flowing to the air outlet 460 is air that has been adsorbed and filtered by the adsorption filter 110.

[0176] In some embodiments, reference Figure 6 , Fig.10 or Fig.14 One of the two closed cabins 320 serves as a decomposition cabin 310 , and a decomposition part is disposed in the closed cabin 320 .

[0177] In some embodiments, reference Fig. 9 , Fig.12 or Fig.17 The two closed cabins 320 are respectively used as decomposition cabins 310, and the decomposition parts 3 are respectively arranged in the two closed cabins 320. When the adsorption filter 110 circulates through the two decomposition cabins 310, the two ends of the adsorption filter 110 can be desorbed and regenerated respectively. In this way, the desorption and regeneration efficiency is improved.

[0178] In some embodiments, the air purification device 100 can selectively open one or both of the two decomposition parts in the two decomposition chambers 310 according to the difference in VOC concentration between the air inlet and the air outlet, thereby reducing energy consumption while ensuring the desorption regeneration efficiency and purification effect.

[0179] In some embodiments, the decomposition unit 3 of the air purification device 100 uses heating to achieve desorption and regeneration of the adsorption filter 110 .

[0180] In some embodiments, reference Figures 14 to 17 The decomposition unit 3 desorbs the VOC adsorbed on the adsorption filter 110 by heating, and then uses the second generator to decompose the desorbed VOC to achieve regeneration of the adsorption filter 110.

[0181] For example, the adsorption filter 110, driven by the driving shaft 210 and the driven shaft 220, continuously enters the second zone 160 from the first zone 150, and then re-enters the first zone 150. When the adsorption filter 110 is transferred to the second zone 160, under the action of the second generator and the temperature, the VOC in the adsorption filter 110 will volatilize into the decomposition chamber 310, and the VOC will be oxidized into carbon dioxide and water under the oxidation action of ozone. This method has a simple structure and high VOC purification efficiency.

[0182] It is understandable that since the decomposition chamber 310 is a closed structure, leakage of VOC and ozone in the decomposition chamber 310 can be avoided.

[0183] In some embodiments, reference Fig.14 The decomposition part 3 includes a heating element 660, which can be disposed on the rotating shaft 230. For example, the heating element 660 is disposed on at least one of the driving shaft 210 or the driven shaft 220. The heating element 660 is configured to heat the second area 160 of the adsorption filter 110 to desorb the pollutants adsorbed on the second area 160 into the decomposition chamber 310.

[0184] In some embodiments, the rotating shaft 230 includes a hollow cavity 231, and the hollow cavity 231 is disposed in the rotating shaft body 234. The heating element 660 is located in the hollow cavity 231 inside the rotating shaft 230, and the heating element 660 can be disposed on the inner peripheral wall of the hollow cavity 231. For example, the heating element 660 is an electric heating plate.

[0185] In some embodiments, the electric heating plate is fixed to the inner cavity wall of the rotating shaft 230 by gluing. In this way, it is easy to install and can heat the rotating shaft 230 evenly, so that the adsorption filter 110 is heated evenly, and the desorption effect of VOC in each area of ​​the adsorption filter 110 is improved.

[0186] Reference Fig.15 The air purification device 100 also includes a first power supply 710, which is configured to supply power to the electric heating plate. After the electric heating plate is powered on and heated, the heat is transferred to the rotating shaft 230. When the adsorption filter 110 rotates around the rotating shaft 230, the rotating shaft 230 transfers heat to the adsorption filter 110 (i.e., the second zone 160) close to the rotating shaft 230. The temperature of the adsorption filter 110 in the second zone 160 increases, and the adsorbed VOC escapes from the micropores of the adsorption material 140, thereby desorbing from the adsorption filter 110 and desorbing into the decomposition chamber 310.

[0187] In some embodiments, reference Fig.14 The decomposition part 3 further includes a second generator 650 (ozone generator), which is disposed in the decomposition chamber 310 , and the second generator 650 is configured to decompose the VOC in the decomposition chamber 310 .

[0188] Reference Fig.15 The air purification device 100 further includes a second power supply 720, which is configured to supply power to the second generator 650. The second power supply 720 is a high-voltage power supply, and the power of the high-voltage power supply can be 1KW, 2KW, 5KW, 10KW, 20KW, 60KW, 100KW, etc.

[0189] It is understandable that the VOCs desorbed by the adsorption filter 110 due to heat are stored in the decomposition chamber 310, and the decomposition chamber 310 is provided with a second generator 650 based on the principle of high-voltage discharge, and the second generator 650 relies on high-voltage ionization to excite the oxygen in the air into ozone. Ozone is unstable and has strong oxidizing properties, so it will eagerly undergo redox reactions with the surrounding gas components, thereby decomposing the VOC gas.

[0190] In addition, due to the effect of electric heating, the temperature in the decomposition chamber 310 will increase. The decomposition reaction of ozone is closely related to the ambient temperature. As the temperature rises, the decomposition speed of ozone will accelerate. Therefore, the heating element 660 also promotes the redox reaction of ozone and accelerates the decomposition speed of VOC.

[0191] It should be noted that in addition to oxygen, there are also many VOCs in the decomposition chamber 310. Some of the VOCs will be crushed during the high-voltage ionization process of the second generator 650, and another part of the VOCs 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 adsorption filter 110 passes through the decomposition chamber 310, the VOCs adsorbed inside will be released and decomposed, and the adsorption filter 110 can be desorbed and regenerated, and return to the first zone 150 for adsorption.

[0192] In some embodiments, a heating element 660 is disposed on at least one of the plurality of rotating shafts 230 that drives the adsorption filter 110 to rotate.

[0193] For example, refer to Fig.14 The plurality of rotating shafts 230 include two rotating shafts 230 , the two rotating shafts 230 are 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 .

[0194] In some embodiments, the decomposition chamber 310 is disposed near the heating element 660, and the decomposition chamber 310 and the heating element 660 are located on opposite sides of the adsorption filter 110. That is, the heating element 660 is disposed in the rotating shaft 230 near the decomposition chamber 310, and the adsorption filter 110 is located between the decomposition chamber 310 and the rotating shaft 230, and rotates through the gap between the decomposition chamber 310 and the rotating shaft 230.

[0195] Reference Fig.14 and Fig.15 The rotating shaft 230 (such as a driving shaft) and the heating element 660 are located on one side (such as the right side) of the second zone 160 on the left side of the adsorption filter 110, and the decomposition chamber 310 is located on the other side (such as the left side) of the second zone 160 on the left side of the adsorption filter 110 opposite to the one side. Heat is transferred from one side to the other side of the adsorption filter 110, so that the VOC on the second zone 160 is desorbed into the decomposition chamber 310.

[0196] In some embodiments, the rotating shaft 230 close to the decomposition chamber 310 may be a driving shaft, and the rotating shaft 230 close to the closed chamber 320 may be a driven shaft.

[0197] In some embodiments, reference Fig.16 The heating element 660 is disposed in the decomposition chamber 310 , and the heating element 660 heats the air in the decomposition chamber 310 , thereby increasing the temperature in the decomposition chamber 310 , thereby increasing the temperature of the adsorption filter 110 passing through the decomposition chamber 310 , so that the VOC on the second zone 160 is desorbed into the decomposition chamber 310 .

[0198] In some embodiments, reference Fig.14 The adsorption filter 110 is in a closed annular structure. A decomposition chamber 310 is arranged at one end of the adsorption filter 110. A second 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) close to the decomposition chamber 310. A closed chamber 320 is arranged at the other end of the adsorption filter 110.

[0199] In some embodiments, reference Fig.17 The adsorption filter 110 is a closed annular structure, and a decomposition chamber 310 is disposed at opposite ends of the adsorption filter 110. A second generator 650 is disposed in the decomposition chamber 310, and heating elements 660 are respectively disposed in two rotating shafts 230 (including a driving shaft 210 and a driven shaft 220).

[0200] In some embodiments, reference Fig.14 The air purification device 100 further includes a first sensor 810 (inlet sensor), which is disposed at the air inlet 450. The first sensor 810 is configured to detect the VOC concentration at the air inlet 450, which is denoted as A.

[0201] The air purification device 100 further includes a second sensor 820 (air outlet sensor), which is disposed at the air outlet. The second sensor 820 is configured to detect the VOC concentration at the air outlet 460, which is denoted as B.

[0202] In some embodiments, reference Fig.14 The air purification device 100 further includes a controller 200 , which is disposed in the decomposition chamber 310 , and the controller 200 is configured to control the air purification device 100 .

[0203] The controller 200 may be a chip or a processor. For example, the processor may be a general-purpose central processing unit (CPU), a microprocessor, or an application-specific integrated circuit (ASIC). Alternatively, the controller 200 may be a programmable device, including a complex programmable logic device (CPLD), an erasable programmable logic device (EPLD), or a field programmable gate array (FPGA). The chip may be an integrated circuit (IC).

[0204] The difference between the VOC concentration A at the air inlet 450 and the VOC concentration B at the air outlet 460 is set to C.

[0205] In some embodiments, the controller 200 is configured to determine the saturation state of the adsorption filter 110 according to the values ​​of A, B, and C, so as to adjust the working state of the decomposition unit 3. For example, the power of the heating element 660, the power of the second generator 650, the working time of the second generator 650, and the rotation speed of the adsorption filter 110 are adjusted.

[0206] In some embodiments, the controller 200 adjusts the rotation speed of the adsorption filter 110 and the working time of the second generator 650 (adjusts the amount of ozone generated) according to the numerical feedback detected by the first sensor 810 and the second sensor 820. In this way, the desorption regeneration efficiency of the second zone 160 can be improved, and the saturation of the filter in the first zone 150 can be avoided, thereby improving the purification effect.

[0207] In some embodiments, reference Fig.14 The air purification device 100 also includes a third sensor 830 (ozone concentration sensor), which is disposed at the air outlet 460 and is configured to detect the ozone concentration D at the air outlet 460 to prevent ozone leakage due to equipment failure or excessive ozone concentration in the decomposition chamber 310.

[0208] In some embodiments, reference Fig.14 The air purification device 100 further includes a fourth sensor 840 (temperature sensor), which is disposed in the decomposition chamber 310 , and is configured to detect a temperature T in the decomposition chamber 310 .

[0209] The controller 200 is also configured to adjust the power of the heating element 660 according to the temperature value, thereby controlling the temperature in the decomposition chamber 310.

[0210] In some embodiments, after the air purification device 100 is turned on, since the VOC concentration in the air and the saturation degree of the adsorption filter 110 are unknown, in order to reduce energy consumption, the second generator 650 and the heating element 660 can be turned off first, and the drive shaft 210 can be controlled to start rotating at a first preset speed. The first preset speed can be the minimum speed of the drive shaft 210.

[0211] It is understandable that when the air purification device 100 is initially started, the adsorption filter 110 and the sensors configured to detect the VOC concentration (including the first sensor 810 and the second sensor 820) are unstable, so after an interval of t1 (e.g., 5 minutes), the controller 200 obtains the VOC concentration A at the air inlet 450 and the VOC concentration B at the air outlet 460. The controller 200 calculates the VOC concentration difference C=AB between the air inlet 450 and the air outlet 460.

[0212] Afterwards, the controller 200 automatically controls the rotation speed of the driving shaft 210 and the working time of the second generator 650 according to B and C.

[0213] If it is determined that B<B1, it means that the VOC concentration at the air outlet 460 is low. At this time, the adsorption filter 110 is in the first working state, that is, the current adsorption filter 110 is capable of purifying VOC in the air, so the controller 200 maintains the current working state unchanged.

[0214] If it is determined that B1<B<B2, it means that the VOC concentration at the air outlet 460 is slightly over the limit, and the adsorption filter 110 is in the second working state, that is, the current adsorption filter 110 is not enough to purify the VOC gas brought by the air inlet 450. At this time, the controller 200 continues to obtain the concentration difference C.

[0215] If it is determined that C>C 限 , it means that the concentration difference between the air outlet 460 and the air inlet 450 is large at this time, which further shows that the adsorption function of the adsorption filter 110 can meet the adsorption requirements at this time, and the reason why the VOC concentration B at the air outlet 460 exceeds the limit may be due to the excessively high VOC concentration A at the air inlet 450. At this time, in order to improve the adsorption effect, the controller 200 can control the speed of the drive shaft 210 to increase by one gear to speed up the speed of the adsorption filter 110, thereby speeding up the contact frequency between the adsorption filter 110 and the VOC gas, thereby improving the adsorption efficiency.

[0216] After the speed of the driving shaft 210 is increased by one gear, after t2 time (for example, 5 minutes) has passed again, the controller 200 obtains the VOC concentration values ​​B and C again, and automatically selects the corresponding control of the heating element 660, the second generator 650 and the adsorption filter 110 according to the values ​​of B and C.

[0217] If the controller 200 determines that the rotation speed of the adsorption filter 110 has reached the maximum value, the second generator 650 is turned on and runs for the first preset operation time to regenerate the adsorption filter 110, and then enters the "When C < C 限 Here, the first preset running time may be the minimum running time of the second generator 650.

[0218] If it is determined that C < C 限 , then 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 been reduced and cannot meet the purification efficiency requirements. Therefore, the controller 200 controls the second generator 650 to start and run at the minimum operating time t3 to regenerate the adsorption filter 110.

[0219] When the second generator 650 is turned on, although the decomposition chamber 310 is a sealed structure, ozone will inevitably escape from the contact position between the adsorption material 140 and the decomposition chamber 310, causing ozone leakage. Therefore, after the second generator 650 is turned on, the controller 200 starts to detect the ozone concentration D at the air outlet 460. If it is determined that D>D 限 , the controller 200 forces the second generator 650 to shut down for t4 time (eg 5 minutes) and then restart.

[0220] If D < D 限 , it means that the ozone concentration leaked at this time is low, and the controller 200 continues to execute to determine whether the current opening time tn of the second generator 650 reaches the limit value t 限 If t<t 限 , the controller 200 returns to the initial step, and after stable operation for t5 time (for example, 5 minutes), the controller 200 obtains the VOC concentration values ​​B and C again, and automatically selects the corresponding control according to the values ​​of B and C.

[0221] If we determine t≥t 限 , it means that the second generator 650 has reached the second preset time, and the VOC concentration B at the air outlet 460 still cannot drop below B1, which means that the oxidation of the second generator 650 alone cannot decompose the VOC in the adsorption filter 110, so the controller 200 controls the heating element 660 to turn on and heat the adsorption filter 110 to accelerate the desorption rate of VOC. Here, the second preset time can be the maximum operating time of the second generator 650.

[0222] After the heating element 660 is turned on, in order to avoid danger caused by excessive heating temperature, it is necessary to detect the temperature T in the decomposition chamber 310. 限 , it means that the temperature in the decomposition chamber 310 is within the controllable range, and the controller 200 returns to the initial step. That is, after stable operation for time t6 (e.g., 5 minutes), the controller 200 obtains the concentration values ​​B and C of VOC again, and automatically selects the corresponding control process according to the values ​​of B and C.

[0223] If it is determined that T ≥ T 限 , it means that the temperature in the decomposition chamber 310 has reached the upper limit, and the controller 200 forcibly turns off the heating element 660, restarts the heating element 660 after t7 time (for example, 10 minutes), continues to obtain the temperature T in the decomposition chamber 310, and performs corresponding control.

[0224] If it is determined that B>B2, the controller 200 determines that the current adsorption filter 110 is in the second working state, and the current adsorption filter 110 can no longer purify the VOC brought by the air inlet 450. At this time, the controller 200 controls the second generator 650 to run at the longest working time, turns on the heating element 660, and controls the speed of the adsorption filter 110 to the highest. During this process, the controller 200 continues to monitor the temperature T in the decomposition chamber 310 and the ozone concentration D at the air outlet 460.

[0225] If it is determined that T ≥ T 限 , it means that the temperature in the decomposition chamber 310 has reached the upper limit, and the controller 200 forcibly turns off the heating element 660, restarts the heating element 660 after t8 time (for example, 10 minutes), continues to detect the temperature T in the decomposition chamber 310, and performs corresponding control. 限 , the controller 200 forces the second generator 650 to shut down for time t9 (eg, 5 minutes), and then restarts to continue monitoring the ozone concentration D at the air outlet 460.

[0226] After time t9, the controller 200 obtains data again. If it is determined that B is still greater than B2, the controller 200 controls the second generator 650 and the heating element 660 to maintain normal operation, and controls the speed of the drive shaft 210 to reduce one gear until the speed of the drive shaft 210 drops to the lowest gear. If the requirements are still not met at this time, the controller 200 will prompt the user that the current adsorption filter 110 needs to run the automatic cleaning mode to clean the adsorption filter 110. The user chooses whether to enter the automatic cleaning mode. If the user selects "Yes", the controller 200 controls the air purification device 100 to enter the automatic cleaning mode. If the user selects "No", the controller 200 continues to operate in the current state.

[0227] In some embodiments, the air purification device 100 has an automatic cleaning mode. After the controller 200 controls the air purification device 100 to enter the automatic cleaning mode, at least one of the fan or air inlet of the indoor unit is closed. At this time, no air flows through the adsorption filter 110. The controller 200 controls the second generator 650 to run at the longest working time, turns on the heating element 660, and adjusts the speed of the adsorption filter 110 to the minimum. In this process, the controller 200 monitors the temperature T in the decomposition chamber 310 and the ozone concentration D at the air outlet 460.

[0228] If it is determined that T ≥ T 限 , it means that the temperature in the decomposition chamber 310 has reached the upper limit, and the controller 200 forcibly turns off the heating element 660. 10 After a certain time (e.g., 10 minutes), the controller 200 restarts the heating element 660 and continues to detect the temperature T in the decomposition chamber 310 to perform corresponding control. 限 , then the second generator 650 is turned off t 11 The controller 200 then restarts to decompose and regenerate the VOC adsorbed on the adsorption filter 110. The controller 200 continues to monitor the ozone concentration D at the air outlet 460.

[0229] After the controller 200 determines that the adsorption filter 110 rotates N (eg, 3) cycles, the automatic cleaning mode ends, and the air purification device 100 stops, waiting for the next instruction from the user.

[0230] In some embodiments, the decomposition unit 3 of the air purification device 100 uses ultraviolet light to achieve desorption and regeneration of the adsorption filter 110.

[0231] In some embodiments, reference Figures 6 to 9 The decomposition unit 3 decomposes the VOC in the second zone 160 by means of ultraviolet light. At this time, the decomposition catalyst 130 on the adsorption filter 110 is a photocatalyst. For example, the adsorption filter 110 is loaded with a photocatalyst, and the decomposition unit 3 can decompose the VOC adsorbed on the adsorption filter by means of the ultraviolet lamp 610 and the photocatalyst. In this way, there is no need for desorption and post-processing, which simplifies the structure of the decomposition unit 3, improves the decomposition efficiency of VOC, and thus improves the air purification effect.

[0232] 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.

[0233] 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 decompose the VOC adsorbed on the filter into carbon dioxide and water, thereby achieving desorption and regeneration of the adsorption filter 110.

[0234] In some embodiments, reference Figure 6 , Figure 8 and Fig. 9 The decomposition part 3 includes at least one ultraviolet lamp 610, which is disposed in the decomposition chamber 310. For example, the ultraviolet lamp 610 is a light emitting diode (LED) ultraviolet lamp. The ultraviolet lamp 610 is configured to irradiate the second area 160 of the adsorption filter 110 to decompose the VOC adsorbed on the second area 160.

[0235] 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 second zone 160 of the adsorption filter at different angles, thereby increasing the action area of ​​the ultraviolet light and the second zone 160 and improving the decomposition effect on VOC.

[0236] In some embodiments, the ultraviolet light emitted by the ultraviolet lamp 610 includes a long-wave ultraviolet A (UVA) band and a short-wave ultraviolet C (UVC) band, with wavelengths of 320-400nm and 100-280nm, respectively. This can improve the effect of the photocatalyst and help improve the VOC decomposition effect.

[0237] In some embodiments, reference Figure 6 Two ultraviolet lamps are arranged in the decomposition chamber 310, namely, ultraviolet lamp 610A and ultraviolet lamp 610B. Ultraviolet lamp 610A emits ultraviolet light of UVA band, and ultraviolet lamp 610B emits ultraviolet light of UVC band. The ultraviolet light of the two bands irradiates the adsorption filter 110 located in the decomposition chamber 310 respectively, decomposes the VOC on the adsorption filter 110, and makes the adsorption filter desorb and regenerate. The regenerated adsorption filter enters the windward side again to continue to adsorb VOC in the air.

[0238] In some embodiments, reference Figure 7 The inner wall surface of the decomposition chamber 310 is a reflective surface, so that the ultraviolet light in the decomposition chamber 310 will be reflected after irradiating the inner wall of the decomposition chamber 310. Since the decomposition chamber 310 is a sealed structure, the ultraviolet light is only reflected inside the decomposition chamber 310. In this way, the ultraviolet light in the decomposition chamber 310 can irradiate the second area 160 of the adsorption filter, thereby improving the regeneration effect.

[0239] 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.

[0240] In some embodiments, the decomposition chamber 310 is made of galvanized sheet material, and then a reflector is pasted on the inner wall, so as to emit ultraviolet rays diverging in all angles, thereby promoting the absorption of ultraviolet rays by the photocatalyst in the adsorption filter 110 and improving the regeneration efficiency.

[0241] In some embodiments, reference Figure 7 and Figure 8 The decomposition part 3 further includes a mercury lamp 620 (ultraviolet lamp tube), which is disposed in the decomposition chamber 310 , and is configured to irradiate ultraviolet light toward the adsorption filter 110 .

[0242] In some embodiments, reference Figure 8 The decomposition chamber 310 is provided with an LED ultraviolet lamp 610 and a mercury lamp 620. The use of two light sources can improve the regeneration efficiency of the adsorption filter 110.

[0243] In some embodiments, reference Figure 6 The adsorption filter 110 is in a closed annular structure. A decomposition cabin 310 is arranged at one end of the 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 adsorption filter 110 .

[0244] In some embodiments, reference Fig. 9 The adsorption filter 110 is in a closed annular structure. Decomposition chambers 310 are respectively disposed at opposite ends of the adsorption filter 110 , and ultraviolet lamps 610 are respectively disposed in the two decomposition chambers 310 .

[0245] In some embodiments, the controller 200 is configured to determine the saturation state of the adsorption filter 110 based on the values ​​of A, B, and C to adjust the power of the ultraviolet lamp 610 and the rotation speed of the adsorption filter 110, thereby avoiding the reduction of the purification effect due to the saturation of the filter in the first zone 150 and improving the regeneration efficiency and air purification effect.

[0246] In some embodiments, after the air purification device 100 is turned on, the VOC concentration in the air and the saturation of the adsorption filter 110 are unknown, so the controller 200 turns off the ultraviolet lamp 610 and controls the drive shaft 210 to start rotating at a first preset speed in order to reduce energy consumption. Here, the first preset speed can be the minimum speed of the drive shaft 210.

[0247] It is understandable that when the air purification device 100 is initially started, the first sensor 810 and the second sensor 820 operate unstably. Therefore, after an interval t1 (for example, 5 minutes), the controller 200 obtains the VOC concentration A at the air inlet 450 and the VOC concentration B at the air outlet 460, and calculates the VOC concentration difference C between the air inlet 450 and the air outlet 460, C=AB.

[0248] In some embodiments, the controller 200 controls the rotation speed of the driving shaft 210 and the irradiation power of the ultraviolet lamp 610 according to B and C.

[0249] If it is determined that B<B1, it means that the VOC concentration at the air outlet 460 is low, so the controller 200 maintains the current state unchanged, controls the ultraviolet lamp 610 to be turned off, and controls the driving shaft 210 to run at the first preset speed.

[0250] If it is determined that B1<B<B2, it means that the VOC concentration at the air outlet 460 is slightly over the limit. At this time, the controller 200 continues to obtain the concentration difference C.

[0251] If it is determined that C>C 限 , it means that the reason why the VOC concentration B at the air outlet 460 exceeds the limit is that the VOC concentration A at the air inlet 450 is too high. At this time, in order to improve the adsorption effect, the controller 200 can control the speed of the driving shaft 210 to increase by one gear to increase the speed of the adsorption filter 110, thereby increasing the contact frequency between the adsorption filter 110 and the VOC gas, thereby improving the adsorption efficiency.

[0252] After the speed of the driving shaft 210 is increased by one gear, after t2 time (for example, 5 minutes) has passed again, the controller 200 obtains the VOC concentration values ​​B and C again, and automatically selects the corresponding control of the ultraviolet lamp 610 and the adsorption filter 110 based on the values ​​of B and C.

[0253] If the controller 200 determines that the rotation speed of the adsorption filter 110 has reached the maximum, the ultraviolet lamp 610 is turned on and operates at the first preset power to regenerate the adsorption filter 110. The first preset power may be the lowest operating power of the ultraviolet lamp 610.

[0254] If it is determined that C < C 限 , it means that the adsorption performance of the adsorption filter 110 has been reduced and can no longer meet the purification efficiency requirements. Therefore, the controller 200 controls the ultraviolet lamp 610 to turn on and controls the ultraviolet lamp 610 to run at the first preset power to regenerate the adsorption filter 110.

[0255] After time t3 (eg, 5 minutes), the controller 200 obtains the VOC concentration values ​​B and C again, and automatically selects corresponding controls for the adsorption filter 110 and the ultraviolet lamp 610 according to the values ​​of B and C.

[0256] If it is determined that the VOC concentration B at the air outlet 460 is still between B1 and B2, and C < C 限 , it means that the power of the ultraviolet lamp 610 cannot meet the requirement, then the irradiation power of the ultraviolet lamp 610 is increased by one level. The controller 200 is also configured to determine whether the current power of the ultraviolet lamp 610 is at the highest level.

[0257] If it is determined that the ultraviolet lamp 610 has reached the upper power limit, the controller 200 maintains the ultraviolet lamp 610 to operate at the maximum power and starts to reduce the rotation 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 110.

[0258] If it is determined that B>B2, the controller 200 determines that the current adsorption filter 110 is in the second working state, and the controller 200 controls the ultraviolet lamp 610 to operate at the maximum power and controls the driving shaft 210 to operate at the maximum speed.

[0259] After t4 (e.g., 5 minutes), the controller 200 obtains the current data A and B again. If it is determined that B is still greater than B2, the controller 200 maintains the ultraviolet lamp 610 at maximum power and controls the speed of the drive shaft 210 to reduce by one gear until the speed drops to the lowest gear. If the requirements are still not met at this time, the controller 200 will automatically prompt the user that the current air purification device 100 needs to run the automatic cleaning mode.

[0260] In some embodiments, after the air purification device 100 enters the automatic cleaning mode, at least one of the fan or the air inlet of the indoor unit is turned off. The controller 200 controls the ultraviolet lamp 610 to operate at the highest power and controls the speed of the drive shaft 210 to operate at a first preset speed to decompose the VOC adsorbed on the adsorption filter 110.

[0261] After the controller 200 determines that the adsorption filter 110 rotates N (eg, 3) cycles, the automatic cleaning mode ends, and the air purification device 100 stops, waiting for the next instruction from the user.

[0262] In some embodiments, the decomposition unit of the air purification device 100 uses plasma to achieve regeneration of the adsorption filter 110 .

[0263] In some embodiments, reference Figures 10 to 12, the decomposition unit 3 decomposes the VOC in the second zone 160 by plasma, and the decomposition catalyst 130 can be an electrocatalyst. For example, the adsorption filter 110 is loaded with an electrocatalyst, and the decomposition unit 3 can decompose the VOC adsorbed on the filter by the action of plasma and electrocatalyst. In this way, there is no need for desorption and post-treatment, the structure of the decomposition unit 3 is simplified, the decomposition efficiency of VOC is improved, and the air purification effect is improved.

[0264] The electrocatalyst can be made of skeleton nickel, nickel boride, tungsten carbide, sodium tungsten bronze, spinel-type and tungsten ore-type semiconductor oxides, and has high catalytic efficiency.

[0265] In some embodiments, reference Figures 10 to 12 , the rotating shaft 230 is conductive and is grounded.

[0266] The decomposition part 3 includes a high-voltage electrode 630, which is arranged in the decomposition chamber 310. 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, and 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 110.

[0267] A high-frequency and high-voltage alternating electric field is formed between the high-voltage electrode 630 and the rotating shaft 230, and the electric field strength can reach 30,000 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 interrupted by the high-voltage electric field, and react under the action of the electrocatalyst to generate carbon dioxide and water.

[0268] In addition, the high-frequency and high-voltage alternating electric field can also ionize water vapor to generate free hydroxyl radicals and active oxygen with extremely strong oxidizing ability, which react with VOC to decompose the VOC adsorbed on the filter into carbon dioxide and water. Therefore, after the adsorption filter 110 passes through the discharge gap, the VOC adsorbed inside will be decomposed, and the adsorption filter 110 can be regenerated and return to the first zone 150 for adsorption.

[0269] In some embodiments, reference Fig.10 The adsorption filter 110 is in a closed annular structure. A decomposition chamber 310 is arranged at one end of the adsorption filter 110 , and a closed chamber 320 is arranged at the other end. A high-voltage electrode 630 is arranged in the decomposition chamber 310 .

[0270] In some embodiments, of the two rotating shafts 230 (including the driving shaft 210 and the driven shaft 220 ), one rotating shaft 230 (eg, the driving shaft 210 ) that is close to the decomposition chamber 310 is conductive and grounded.

[0271] In some embodiments, reference Fig.12 The adsorption filter 110 is a closed ring structure, and decomposition chambers 310 are respectively arranged at the opposite ends of the adsorption filter 110. High-voltage electrodes 630 are respectively arranged in the two decomposition chambers 310. The two rotating shafts 230 are respectively conductive and grounded, and a discharge gap is formed between the high-voltage electrode 630 and the adjacent rotating shaft 230.

[0272] 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 first housing 4 of the air purification device 100 are respectively connected to the ground wire of the power supply.

[0273] For example, the driving shaft 210 is conductive and grounded. On one hand, the driving shaft 210 provides power for the rotation of the adsorption filter 110 , and on the other hand, it is also reliably grounded.

[0274] In some embodiments, reference Fig.11 The air purification device 100 further includes a third power source 730, and the third power source 730 is configured to supply power to the high-voltage electrode 630. For example, the third power source 730 is a high-voltage power source.

[0275] In some embodiments, reference Fig.25 The high voltage electrode 630 includes a conductive portion 631 (metal electrode), and the conductive portion 631 is coupled to the third power source 730 .

[0276] The high voltage electrode 630 further includes an insulating portion 632 (insulating medium layer), and the insulating portion 632 is wrapped around the outer periphery of the conductive portion 631 .

[0277] The high voltage electrode 630 further includes a high voltage line 633 , and the conductive portion 631 may be coupled to the third power source 730 via the high voltage line 633 .

[0278] The high voltage electrode 630 further includes a first sealing portion 634 (silicone rubber) configured to seal the conductive portion 631 inside the insulating portion 632 .

[0279] 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 .

[0280] In some embodiments, the thickness of the discharge gap is comparable to that of the adsorption filter 110, so as to facilitate the passage of the adsorption filter 110 and ensure the decomposition of VOC by the high voltage electrode 630. For example, the thickness of the discharge gap is equal to that of the adsorption filter 110, or the difference in thickness between the two is within a preset range, such as 5 mm.

[0281] In some embodiments, reference Fig.10 or Fig.12A controller 200 is disposed in the decomposition chamber 310 , and the controller 200 is configured to control the working state of the air purification device 100 .

[0282] In some embodiments, the controller 200 is configured to determine the saturation state of the adsorption filter 110 based on the VOC concentration value A at the air inlet 450, the VOC concentration value B at the air outlet 460, and the difference C between the inlet and outlet VOC concentration values, and to adjust the release voltage of the high-voltage electrode 630 and the rotation speed of the adsorption filter 110 to improve the regeneration efficiency and air purification effect.

[0283] In some embodiments, after the air purification device 100 is turned on, because the VOC concentration in the air and the saturation degree of the adsorption filter 110 are unknown, in order to reduce energy consumption, the controller 200 first turns off the third power supply 730, that is, turns off the high-voltage electrode 630, and controls the drive shaft 210 to start rotating at a first preset speed. The first preset speed can be the minimum speed of the drive shaft 210.

[0284] When the air purification device 100 is initially started, since the adsorption filter 110 and the sensor configured to detect the VOC concentration are unstable, after an interval of t1 (e.g., 5 minutes), the controller 200 obtains the VOC concentration A at the air inlet 450 and the VOC concentration B at the air outlet 460, and calculates the VOC concentration difference C between the air inlet 450 and the air outlet 460, C=AB. The controller 200 is also configured to automatically control the rotation speed of the drive shaft 210 and the output voltage of the third power supply 730 according to B and C.

[0285] If it is determined that B<B1, it means that the VOC concentration at the air outlet 460 is low, so the controller 200 maintains the current state unchanged, that is, the third power supply 730 is turned off, and the drive shaft 210 runs at the first preset speed.

[0286] If it is determined that B1<B<B2, it means that the VOC concentration at the air outlet 460 is slightly over the limit. At this time, the controller 200 continues to obtain the concentration difference C.

[0287] If it is determined that C>C 限 , it means that the difference between the VOC concentrations at the air outlet 460 and the air inlet 450 is large, which further shows that the adsorption function of the adsorption filter 110 can meet the adsorption requirements. The reason why the VOC concentration B at the air outlet 460 exceeds the limit is because the VOC concentration A at the air inlet 450 is too high. At this time, in order to improve the adsorption effect, the controller 200 can control the speed of the drive shaft 210 to increase by one gear to speed up the speed of the adsorption filter, thereby speeding up the contact frequency between the adsorption filter 110 and the VOC gas, thereby improving the adsorption efficiency.

[0288] After the speed of the driving shaft 210 is increased by one gear, after t2 time (for example, 5 minutes) has passed again, the controller 200 obtains the concentration values ​​B and C of the VOC again, and automatically selects the corresponding control according to the values ​​of B and C again.

[0289] If it is determined that the rotation speed of the adsorption filter 110 has reached the maximum value, the controller 200 turns on the third power supply 730 and controls the third power supply 730 to operate at the first preset voltage to regenerate the adsorption filter 110. The first preset voltage may be the lowest output voltage of the third power supply 730.

[0290] If it is determined that C < C 限 , it means that the adsorption performance of the adsorption filter 110 has been reduced and cannot meet the purification efficiency requirement. Therefore, the controller 200 controls the third power supply 730 to turn on and controls the third power supply 730 to operate at the first preset voltage to regenerate the adsorption filter 110.

[0291] After t3 (e.g., 5 minutes), the controller 200 obtains the VOC concentration values ​​B and C again, and automatically selects the corresponding control according to the values ​​of B and C. If it is determined that the VOC concentration B at the air outlet 460 is still between B1 and B2, and C < C 限 , it means that the regeneration performance of the high-voltage electrode 630 cannot meet the requirements, then the output voltage of the third power supply 730 is increased by one level, and the controller 200 is also configured to determine whether the current output voltage of the third power supply 730 is the highest level.

[0292] If not, continue to operate according to the above steps. If the controller 200 determines that the third power supply 730 has reached the voltage upper limit, the controller 200 maintains the third power supply 730 to operate at the maximum output voltage and starts to reduce the rotation 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 110.

[0293] If it is determined that B>B2, the controller 200 determines that the current adsorption filter 110 is in the second working state and can no longer purify the VOC brought by the air inlet 450. At this time, the controller 200 controls the third power supply 730 to operate at the maximum output voltage and controls the drive shaft 210 to operate at the maximum speed.

[0294] After t4 (e.g., 5 minutes), the controller 200 acquires data again. If it is determined that B is still greater than B2, the controller 200 controls the third power supply 730 to operate at the maximum output voltage, and the speed of the drive shaft 210 is reduced by one gear until the speed drops to the lowest gear. If the requirement is still not met at this time, the controller 200 will automatically prompt the user that the current adsorption filter 110 needs to run the automatic cleaning mode.

[0295] In some embodiments, after the air purification device 100 enters the automatic cleaning mode, at least one of the fan or the air inlet of the indoor unit is turned off. The controller 200 controls the third power supply 730 to operate at the highest output voltage, and controls the speed of the drive shaft 210 to operate at the first preset speed to decompose and regenerate the VOC adsorbed on the adsorption filter 110.

[0296] When the controller 200 determines that the adsorption filter 110 rotates N (for example, 3) cycles, the automatic cleaning mode ends, and the air purification device 100 stops and waits for the next instruction from the user.

[0297] In some embodiments, the decomposition unit of the air purification device 100 realizes the regeneration of the adsorption filter 110 by means of photoelectric combination.

[0298] In some embodiments, reference Fig.13 The decomposition part 3 adopts a photoelectric method, that is, a combination of ultraviolet light and plasma, to adsorb the photocatalyst and electrocatalyst loaded on the filter 110 to decompose the VOC adsorbed on the filter. In this way, there is no need for desorption and post-treatment, which simplifies the structure of the decomposition part 3 and improves the decomposition efficiency of VOC. The dual effects of ultraviolet light and plasma further improve the air purification effect.

[0299] In some embodiments, a high voltage electrode 630 and an ultraviolet lamp 610 are disposed 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.

[0300] In some embodiments, after the air purification device 100 is turned on, because the VOC concentration in the air and the saturation degree of the adsorption filter 110 are unknown, in order to reduce energy consumption, the controller 200 first turns off the third power supply 730 and the ultraviolet lamp 610, and controls the drive shaft 210 to start rotating at a first preset speed. Here, the first preset speed can be the minimum speed of the drive shaft 210.

[0301] When the air purification device 100 is initially started, the adsorption filter 110 and the sensor configured to detect the VOC concentration are unstable, so after an interval of t1 (e.g., 5 minutes), the controller 200 obtains the VOC concentration A at the air inlet 450 and the VOC concentration B at the air outlet 460, and calculates the VOC concentration difference C between the air inlet 450 and the air outlet 460, C=AB. The controller 200 is configured to automatically control the rotation speed of the drive shaft 210 and the output voltage of the third power supply 730 according to B and C.

[0302] If it is determined that B<B1, it means that the VOC concentration at the air outlet 460 is low, so the controller 200 determines to maintain the current state unchanged, that is, the third power supply 730 and the ultraviolet lamp 610 are turned off, and the drive shaft 210 runs at the first preset speed.

[0303] If it is determined that B1<B<B2, it means that the VOC concentration at the air outlet 460 is slightly over the limit. At this time, the controller 200 continues to obtain the concentration difference C.

[0304] If it is determined that C>C 限 , it means that the adsorption function of the adsorption filter 110 is good at this time, and the reason why the VOC concentration B at the air outlet 460 exceeds the limit is because the VOC concentration A at the air inlet 450 is too high. At this time, in order to improve the adsorption effect, the controller 200 can control the speed of the drive shaft 210 to increase by one gear to speed up the speed of the adsorption filter, thereby speeding up the contact between the adsorption filter and the VOC gas, thereby improving the adsorption efficiency.

[0305] After the speed of the driving shaft 210 is increased by one gear, after t2 time (for example, 5 minutes) has passed again, the controller 200 obtains the concentration values ​​B and C of the VOC again, and automatically selects the corresponding control according to the values ​​of B and C again.

[0306] If the controller 200 determines that the rotation speed of the adsorption filter 110 has reached the maximum value, the controller 200 turns on the third power supply 730 and operates at the first preset voltage to regenerate the adsorption filter 110. The first preset voltage may be the lowest output voltage of the third power supply 730.

[0307] If it is determined that C < C 限 , it means that the adsorption performance of the adsorption filter 110 has been reduced and cannot meet the purification efficiency requirement. Therefore, the controller 200 controls to turn on the third power supply 730 and operates at the lowest output voltage to regenerate the adsorption filter 110.

[0308] After t3 (e.g., 5 minutes), the controller 200 obtains the VOC concentration values ​​B and C again, and automatically selects the corresponding control process according to the values ​​of B and C. If it is determined that the VOC concentration B at the air outlet 460 is still between B1 and B2, and C < C 限 , the output voltage of the third power supply 730 is increased by one level. The controller 200 is also configured to determine whether the current output voltage of the third power supply 730 is at the highest level.

[0309] If not, continue to operate according to the above steps. If the controller 200 determines that the third power supply 730 has reached the upper voltage limit, the controller 200 maintains the third power supply 730 to operate at the maximum output voltage and turns on the ultraviolet lamp 610, and the ultraviolet lamp 610 operates at the lowest power.

[0310] After time t4 (eg, 5 minutes), the controller 200 obtains the VOC concentration values ​​B and C again, and automatically selects corresponding control according to the values ​​of B and C again.

[0311] If it is determined that the VOC concentration B at the air outlet 460 is still between B1 and B2, and C < C 限 , then continue to increase the power of the ultraviolet lamp 610 until the power of the ultraviolet lamp 610 reaches the upper limit.

[0312] When the power of the ultraviolet lamp 610 reaches the upper limit, the subsequent control process of the ultraviolet lamp 610 is carried out with reference to the process of "B>B2", and the process is as follows.

[0313] If it is determined that B>B2, the controller 200 determines that the current adsorption filter 110 is in the second working state and can no longer purify the VOC brought by the air inlet 450. The controller 200 controls the third power supply 730 and the ultraviolet lamp 610 to run at maximum power, and controls the drive shaft 210 to run at maximum speed.

[0314] After t5 (e.g., 5 minutes), the controller 200 acquires data again. If it is determined that B is still greater than B2, the controller 200 controls the power of the third power supply 730 and the ultraviolet lamp 610 to remain unchanged, including reducing the speed of the drive shaft 210 by one gear until the speed of the drive shaft 210 drops to the lowest gear. At this time, if it is determined that B is still greater than B2, the controller 200 will automatically prompt the user that the current filter needs to run the automatic cleaning mode.

[0315] In some embodiments, after the air purification device 100 enters the automatic cleaning mode, at least one of the fan or the air inlet of the indoor unit is turned off. The controller 200 controls the third power supply 730 and the ultraviolet lamp 610 to operate at the highest power, and controls the drive shaft 210 to operate at the first preset speed to decompose and regenerate the VOC adsorbed on the adsorption filter 110.

[0316] After the controller 200 determines that the adsorption filter 110 rotates N (eg, 3) cycles, the automatic cleaning mode ends, and the air purification device 100 stops, waiting for the next instruction from the user.

[0317] In some embodiments, the decomposition unit of the air purification device 100 uses microwaves to achieve regeneration of the adsorption filter 110 .

[0318] In some embodiments, reference Figure 18 to Figure 19The decomposition part 3 uses microwaves, and the decomposition catalyst 130 is a microwave catalyst. The adsorption filter 110 is loaded with a microwave catalyst. The decomposition part 3 uses the high voltage electric field emitted by the first generator 640 and the microwave catalyst to decompose the VOC adsorbed on the adsorption filter without desorption and post-treatment, which simplifies the structure of the decomposition part 3, improves the decomposition efficiency of VOC, and thus improves the air purification effect.

[0319] The microwave catalyst can be made of LiCoO_2 / AC composite oxide, Cu-Mn-Ce / cordierite, magnesium-doped manganese dioxide catalyst, hopcalite catalyst, etc. In this way, the catalytic efficiency can be improved.

[0320] Hopcalite is a catalyst used to remove harmful gases from the air. One of the main uses of hopcalite catalysts is to remove harmful gases such as carbon monoxide (CO) and sulfur dioxide (SO2), and it can also be used to remove odors, organic matter and volatile organic compounds (VOCs). Hopcalite is a mixture of various metal oxides, the most common of which are copper oxide and manganese oxide, usually supported on ceramic or metal carriers such as alumina. These metal oxides play a key role in the catalyst reaction, helping to convert harmful gases into harmless substances.

[0321] In some embodiments, reference Fig.18 The decomposition part 3 includes a first generator 640, which is arranged in the decomposition chamber 310. The first 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 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 with the direction of the constantly changing high-frequency electromagnetic field, they need to 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.

[0322] In some embodiments, reference Fig.18 The adsorption filter screen 110 is in a closed annular structure. A decomposition cabin 310 is disposed at one end of the adsorption filter screen 110 , and a closed cabin 320 is disposed at the other end. The first generator 640 is disposed on the decomposition cabin 310 .

[0323] In some embodiments, reference Fig.19The adsorption filter 110 is in a closed annular structure. Decomposition chambers 310 are respectively disposed at opposite ends of the adsorption filter 110 . The two decomposition chambers 310 are respectively provided with first generators 640 .

[0324] In some embodiments, reference Fig.18 A controller 200 is disposed in the decomposition chamber 310 , and the controller 200 is configured to control the working state of the air purification device 100 .

[0325] The controller 200 is configured to determine the saturation state of the adsorption filter 110 based on the VOC concentration value A at the air inlet 450, the VOC concentration value B at the air outlet 460, and the difference C between the inlet and outlet VOC concentration values, and adjust the power of the first generator 640 and the rotation speed of the adsorption filter 110 accordingly, so as to avoid the reduction of purification effect due to the saturation of the filter in the first zone 150, thereby improving the regeneration efficiency and the air purification effect.

[0326] In some embodiments, after the air purification device 100 is turned on, the VOC concentration in the air and the saturation level of the adsorption filter 110 are unknown. Therefore, in order to reduce energy consumption, the controller 200 first turns off the first generator 640 and controls the drive shaft 210 to start rotating at a first preset speed. The first preset speed can be the minimum speed of the drive shaft 210.

[0327] When the air purification device 100 is initially started, the adsorption filter 110 and the sensor configured to detect the VOC concentration are unstable, so after an interval of t1 (e.g., 5 minutes), the controller 200 obtains the VOC concentration A at the air inlet 450 and the VOC concentration B at the air outlet 460, and calculates the VOC concentration difference C=AB between the air inlet 450 and the air outlet 460. The controller 200 is also configured to automatically control the rotation speed of the drive shaft 210 and the power of the first generator 640 according to B and C.

[0328] If it is determined that B<B1, it means that the VOC concentration at the air outlet is low. At this time, the adsorption filter 110 is in a good working state and is capable of purifying the VOC in the air. Therefore, the controller 200 maintains the current working state unchanged.

[0329] If it is determined that B1<B<B2, it means that the VOC concentration at the air outlet is slightly over the limit. At this time, the working condition of the adsorption filter is slightly poor and is not enough to purify the VOC gas brought by the air inlet 450. At this time, the controller 200 continues to determine the concentration difference C.

[0330] If it is determined that C>C 限, it means that the concentration difference between the air outlet 460 and the air inlet 450 is large at this time, which further shows that the adsorption function of the adsorption filter 110 is good at this time, and the reason why the VOC concentration B at the air outlet 460 exceeds the limit is because the VOC concentration A at the air inlet 450 is too high. At this time, in order to improve the adsorption effect, the controller 200 will control the speed of the drive shaft 210 to increase by one gear to speed up the speed of the adsorption filter, thereby speeding up the contact between the adsorption filter and the VOC gas, thereby improving the adsorption efficiency.

[0331] When the speed of the driving shaft 210 is increased by one gear, after t2 time (for example, 5 minutes) has passed again, the controller 200 obtains the concentration values ​​B and C of the VOC again, and automatically selects the corresponding control according to the values ​​of B and C again.

[0332] If it is determined that the rotation speed of the adsorption filter 110 has reached the maximum value, the controller 200 turns on the first generator 640 and operates it at the lowest power to regenerate the adsorption filter 110, and then enters the "If it is determined that C < C 限 ” workflow.

[0333] If it is determined that C < C 限 , then at this time, the difference between the VOC concentration A at the air inlet 450 and the VOC concentration B at the air outlet 460 is small, indicating that the adsorption performance of the adsorption filter 110 has been reduced and cannot meet the purification efficiency requirements. Therefore, the controller 200 controls the first generator 640 to start and run at the lowest power to regenerate the adsorption filter 110.

[0334] After t3 (e.g., 5 minutes), the controller 200 obtains the VOC concentration values ​​B and C again, and automatically selects the corresponding control according to the values ​​of B and C. If the VOC concentration B at the air outlet is still between B1 and B2, and C < C 限 , it means that the power of the first generator 640 cannot meet the requirement, then the power of the first generator 640 is increased by one level, and the controller 200 is also configured to determine whether the current power is the highest level.

[0335] If not, continue to operate according to the above steps. If the controller 200 determines that the power has reached the upper limit, the controller 200 maintains the current power operation and starts to reduce the rotation 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 110.

[0336] If it is determined that B>B2, the controller 200 determines that the current adsorption filter 110 is in poor working condition and can no longer purify the VOC brought by the air inlet 450. The controller 200 controls the first generator 640 to operate at maximum power and controls the drive shaft 210 to operate at maximum speed.

[0337] After t4 (e.g., 5 minutes), the controller 200 acquires data again. If it is determined that B is still greater than B2, the controller 200 controls the first generator 640 to operate at maximum power, and the speed of the drive shaft 210 is reduced by one gear until the speed drops to the lowest gear. If the requirement is still not met at this time, the controller 200 will automatically prompt the user that the current adsorption filter 110 needs to run the automatic cleaning mode.

[0338] In some embodiments, after the air purification device 100 enters the automatic cleaning mode, at least one of the fan or the air inlet of the indoor unit is turned off. The controller 200 controls the first generator 640 to operate at maximum power and controls the drive shaft 210 to operate at a first preset speed to decompose and regenerate the VOC adsorbed on the adsorption filter 110.

[0339] After the controller 200 determines that the adsorption filter 110 rotates N (eg, 3) cycles, the automatic cleaning mode ends, and the air purification device 100 stops, waiting for the next instruction from the user.

[0340] It should be noted that any one of the technical solutions disclosed in the present disclosure can solve one or more of the above-mentioned technical problems and achieve certain disclosure purposes to a certain extent; multiple technical disclosures can also be combined into an overall solution to solve one or more of the above-mentioned technical problems and achieve certain disclosure purposes; some technical disclosures can also be selected to be combined into an overall solution, while adopting related technologies and deteriorated solutions, but the deterioration trend can be compensated by the means disclosed in this technology, and one or more of the above-mentioned technical problems can be solved to a certain extent as a whole and achieve certain disclosure purposes; each technical disclosure combined into a complete technical solution constitutes an organic and inseparable overall solution, which solves technical problems as a whole and achieves certain disclosure purposes.

[0341] Any technical disclosure in the present disclosure, as well as the recombination of multiple technical disclosures, can form a complete technical solution and can solve one or more of the above-mentioned technical problems and achieve the purpose of disclosure. They all belong to the content of the present disclosure and belong to the content that is directly and unambiguously determined based on the content of the present disclosure.

[0342] Those skilled in the art will understand that the scope of the present disclosure is not limited to the above specific embodiments, and certain elements of the embodiments may be modified and replaced without departing from the spirit of the present application. The scope of the present application is limited by the appended claims.

Claims

1. An air purification device, characterized in that: include: Adsorption part, comprising: an adsorption filter configured to adsorb pollutants from the air; A reinforcement portion, arranged at the end edge of the cross section of the adsorption filter; The air purification device also includes: A decomposition unit is configured to desorb or decompose pollutants adsorbed on the adsorption filter to regenerate the adsorption filter; The driving part is configured to cause relative movement between the adsorption filter screen and the decomposition part to adjust the action positions of the adsorption filter screen and the decomposition part.

2. The air purification device according to claim 1, characterized in that: The adsorption filter is disposed in a surrounding manner to form a multi-layer first area in contact with air, and the air flows through the multi-layer first area along its flow direction.

3. The air purification device according to claim 2, characterized in that: The adsorption filter screen is made by cutting and sewing adsorption materials, and the ends of the adsorption materials are sewn together to form a closed ring structure.

4. The air purification device according to claim 1, characterized in that: A decomposition catalyst is supported on the adsorption filter, and the decomposition unit is configured to act on the decomposition catalyst to decompose pollutants adsorbed on the adsorption filter.

5. The air purification device according to claim 4, characterized in that: The decomposition catalyst is made of a manganese-based catalyst, platinum metal, and palladium metal. The decomposition unit selects at least one of ultraviolet light, plasma, microwave, and photoelectric methods according to the type of the decomposition catalyst.

6. The air purification device according to any one of claims 1 to 5, characterized in that: A rubber seal is provided at the end edge of the cross section of the adsorption filter to form the reinforcement portion.

7. The air purification device according to any one of claims 1 to 5, characterized in that: The reinforcement parts are arranged at the two opposite ends of the cross section of the adsorption filter; The driving part includes a driving shaft and a driven shaft. Two spaced-apart limit platforms are arranged in the axial direction of the driving shaft and the driven shaft. The adsorption filter is located between the two limit platforms. Any one of the two limit platforms contacts the reinforcement part to drive the adsorption filter to rotate.

8. The air purification device according to any one of claims 1 to 5, characterized in that: The adsorption filter is in a closed annular structure. The driving part includes a driving shaft and a driven shaft. The driving shaft and the driven shaft are arranged at intervals along the rotation direction of the adsorption filter. The driving part drives the adsorption filter to move so that the adsorption filter circulates through the decomposition part.

9. An air purification device, characterized in that: include: An adsorption filter configured to adsorb pollutants in the air, the adsorption filter forming a plurality of first zones in contact with the air, the air flowing through the plurality of first zones along a flow direction thereof; A decomposition unit is configured to desorb or decompose pollutants adsorbed on the adsorption filter to regenerate the adsorption filter; The driving part is configured to generate relative movement between the adsorption filter and the decomposition part to adjust the action positions of the adsorption filter and the decomposition part.

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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