Purification device, air treatment equipment and control method of air treatment equipment

Abstract

According to the purification device, the air treatment equipment and the control method of the purification device, the plasma purification technology and the photocatalytic purification technology can be combined, the defects of the plasma purification technology and the photocatalytic purification technology are overcome, the synergistic purification effect of 1 + 1 > 2 is generated, the problem that ozone of a plasma generation device exceeds the standard and the sterilization effect cannot be considered at the same time can be solved, and the purification effect is improved. And the problem that the input power and the deodorizing efficiency of the photocatalytic device cannot be considered at the same time can be solved. The purification device comprises a plasma generation device and a purification device, and the photocatalytic device and the plasma generating device are arranged at an interval, and the distance between the photocatalytic device and the plasma generating device is adjustable.

Description

Technical Field

[0001] The present application relates to but is not limited to the field of air purification technology, and specifically refers to a purification device, air treatment equipment and a control method thereof. Background Art

[0002] At present, a common sterilization module for air conditioners on the market is a plasma generator. Its sterilization mechanism is to decompose and destroy bacteria through a bipolar plasma electrostatic field, thereby achieving a sterilization effect. However, this module will release ozone during the sterilization process, and the higher the working voltage, the better the sterilization effect, but the more ozone is produced, which can easily lead to excessive ozone concentrations. Excessive ozone concentrations are harmful to the human body. Therefore, in order to make ozone meet the standard, the working voltage of the plasma generator must be reduced, resulting in a poor sterilization effect.

[0003] A common deodorizing module for air conditioners on the market is the photocatalytic device, which uses ultraviolet light to irradiate photocatalysts to generate active oxygen such as hydroxyl radicals, thereby achieving a deodorizing effect. The deodorizing effect is positively correlated with the input power of the photocatalytic device. However, the power that can be reserved for the photocatalytic device in air conditioners is not much, which limits the deodorizing effect. Summary of the invention

[0004] The technical problem to be solved by the present application is to provide a purification device, an air treatment equipment and a control method thereof, which can combine plasma purification technology with photocatalytic purification technology to make up for their respective defects and produce a synergistic purification effect of 1+1>2. It can not only solve the problem that the ozone exceeding the standard and the sterilization effect of the plasma generating device cannot be taken into account at the same time, but also solve the problem that the input power and deodorization efficiency of the photocatalytic device cannot be taken into account at the same time.

[0005] To this end, an embodiment of the present application provides a purification device, including: a plasma generating device; and a photocatalytic device, which is spaced apart from the plasma generating device, and the distance between the photocatalytic device and the plasma generating device is adjustable.

[0006] The purification device provided in the embodiment of the present application includes a plasma generating device and a photocatalytic device. The plasma generating device can use the plasma electrostatic field to decompose and destroy bacteria, thereby achieving a bactericidal effect. The photocatalytic device can generate active oxygen such as hydroxyl radicals, thereby achieving a deodorizing effect. Since ozone is generated during the operation of the plasma generating device, ozone also has strong oxidizing properties, and thus can also oxidize and decompose organic pollutants, thereby achieving a certain deodorizing effect.

[0007] Furthermore, the inventors of the present application have discovered through research that a photocatalytic device can convert ozone generated during the operation of a plasma generator into hydroxyl radicals with stronger oxidizing properties, thereby consuming ozone while also increasing the amount of hydroxyl radicals generated. This not only solves the limitation of ozone concentration on the operating voltage of a plasma generator, but also increases the amount of hydroxyl radicals generated without increasing the input power of the photocatalytic device. This is beneficial for both reducing ozone concentration and improving the sterilization and deodorization effects of the purification device.

[0008] In addition, since the photocatalytic device is arranged on the air flow path of the plasma generating device and the distance between the photocatalytic device and the plasma generating device is adjustable, the distance between the photocatalytic device and the plasma generating device can be adjusted during use to maintain an optimal distance between the photocatalytic device and the plasma generating device. This is beneficial for the ozone generated by the plasma generating device to be irradiated by the light source of the photocatalytic device as much as possible to improve the conversion rate of ozone to hydroxyl radicals, and is also beneficial for the photocatalytic device and the plasma generating device to maintain a safe electrical gap under different voltages to ensure the safe use of the purification device.

[0009] Based on the above technical solution, the present application can also be improved as follows.

[0010] In an exemplary embodiment, the purification device further includes: a humidifying device, which is arranged on the air flow path of the plasma generating device.

[0011] In an exemplary embodiment, along the air flow direction of the plasma generating device, the humidifying device is located at the upstream side of the plasma generating device; and / or, the humidifying device includes an ultrasonic atomizer with adjustable power.

[0012] In an exemplary embodiment, along the air flow direction of the plasma generating device, the photocatalytic device is located at the downstream side of the plasma generating device.

[0013] In an exemplary embodiment, the photocatalytic device includes a light source, a photocatalyst and a honeycomb-shaped carrier, the photocatalyst is arranged on the carrier, and the light source is configured to emit light to the photocatalyst; wherein the center line of the honeycomb holes of the carrier is inclined relative to the airflow direction of the plasma generating device; and / or, an adsorbent is also provided on the carrier.

[0014] An embodiment of the present application also provides an air treatment device, comprising a purification device as described in any one of the above embodiments.

[0015] In an exemplary embodiment, the air treatment device further includes: a microorganism detector configured to detect the concentration of microorganisms in the environment; and / or an ozone concentration detector configured to detect the concentration of ozone in the environment.

[0016] An embodiment of the present application also provides a control method for an air treatment device as described in any one of the above embodiments, the control method comprising: determining a purification mode; and controlling the purification device according to the determined purification mode.

[0017] In an exemplary embodiment, the air treatment device further comprises a fan, wherein the fan is configured to drive the gas to flow through the plasma generating device and the photocatalytic device; the purification mode comprises a first purification mode and a second purification mode;

[0018] Based on the determined purification mode being the first purification mode, turning on the plasma generating device and keeping the fan running;

[0019] Based on the determination that the purification mode is the second purification mode, the plasma generating device and the photocatalytic device are turned on and the fan is kept running.

[0020] In an exemplary embodiment, the air treatment device further comprises a fan, wherein the fan is configured to drive the gas to flow through the plasma generating device and the photocatalytic device; the purification mode comprises a first purification mode and a second purification mode;

[0021] The controlling the purification device according to the determined purification mode comprises:

[0022] Based on the determined purification mode being the first purification mode and the concentration of microorganisms in the environment exceeding a first set concentration range, turning on the plasma generating device and keeping the fan running;

[0023] Based on the determination that the purification mode is the second purification mode and the TVOC concentration in the environment exceeds the second set concentration range, the plasma generating device and the photocatalytic device are turned on and the fan is kept running.

[0024] In an exemplary embodiment, the purification device further includes a humidifying device; and the controlling the purification device according to the determined purification mode further includes:

[0025] Based on the determined purification mode being the first purification mode and the ozone concentration in the environment exceeding a first set threshold, turning on the photocatalytic device and the humidifying device;

[0026] Based on the determined purification mode being the second purification mode and the ozone concentration in the environment exceeding a second set threshold, the humidifying device is turned on.

[0027] In an exemplary embodiment, the purification device further includes a humidifying device; and the controlling the purification device according to the determined purification mode further includes:

[0028] Based on the determined purification mode being the first purification mode and the ozone concentration in the environment exceeding a set threshold, turning on the photocatalytic device and the humidifying device, and increasing the air volume of the fan;

[0029] Based on the fact that the determined purification mode is the second purification mode and the ozone concentration in the environment exceeds a set threshold, the humidifying device is turned on and the air volume of the fan is increased.

[0030] In an exemplary embodiment, controlling the purification device according to the determined purification mode further includes:

[0031] Based on the determined purification mode being the first purification mode and the ozone concentration in the environment exceeding the first set threshold, before turning on the photocatalytic device and the humidifying device and increasing the air volume of the fan, determining the operating parameters of the photocatalytic device, the operating parameters of the humidifying device and the air volume of the fan according to the ozone concentration in the environment;

[0032] Based on the determination that the purification mode is the second purification mode and the ozone concentration in the environment exceeds the second set threshold, before turning on the humidifier and increasing the air volume of the fan, the working parameters of the humidifier and the air volume of the fan are determined according to the ozone concentration in the environment.

[0033] In an exemplary embodiment, the determining the working parameters of the photocatalytic device, the working parameters of the humidifying device and the air volume of the fan according to the ozone concentration in the environment includes: determining the ozone concentration level according to the ozone concentration in the environment, and determining the working parameters of the photocatalytic device, the working parameters of the humidifying device and the air volume of the fan according to the ozone concentration level;

[0034] Determining the working parameters of the humidifier and the air volume of the fan according to the ozone concentration in the environment includes: determining the ozone concentration level according to the ozone concentration in the environment, and determining the working parameters of the humidifier and the air volume of the fan according to the ozone concentration level.

[0035] In an exemplary embodiment, controlling the purification device according to the determined purification mode further includes:

[0036] Based on the determined purification mode being the first purification mode, before turning on the plasma generating device and keeping the fan running, determining the working parameters of the plasma generating device according to the concentration of microorganisms in the environment, and adjusting the distance between the plasma generating device and the photocatalytic device according to the working parameters of the plasma generating device;

[0037] Based on the determination that the purification mode is the second purification mode, before turning on the plasma generating device and the photocatalytic device and keeping the fan running, the operating parameters of the plasma generating device are determined according to the TVOC concentration in the environment, and the distance between the plasma generating device and the photocatalytic device is adjusted according to the operating parameters of the plasma generating device.

[0038] In an exemplary embodiment, determining the operating parameters of the plasma generating device according to the concentration of microorganisms in the environment includes: determining a first environmental quality level according to the concentration of microorganisms in the environment, and determining the operating parameters of the plasma generating device according to the first environmental quality level;

[0039] Determining the working parameters of the plasma generating device according to the TVOC concentration in the environment includes: determining a second environmental quality level according to the TVOC concentration in the environment, and determining the working parameters of the plasma generating device according to the second environmental quality level.

[0040] In an exemplary embodiment, controlling the purification device according to the determined purification mode further includes:

[0041] Based on the fact that the operation time of the purification device reaches the set time, the purification device is turned off, and the distance between the plasma generating device and the photocatalytic device is reset to an initial value. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 A schematic diagram of the structure of a purification device provided in one embodiment of the present application;

[0043] Figure 2 It is a schematic diagram of the decay curve of ozone under different conditions;

[0044] Figure 3 Schematic diagram of the degradation rate of n-decane under different treatment conditions;

[0045] Figure 4 A flow chart of a control method provided by an embodiment of the present application;

[0046] Figure 5 A schematic diagram of a process flow of a first purification mode provided in one embodiment of the present application;

[0047] Figure 6 A schematic diagram of the process of the second purification mode provided in one embodiment of the present application.

[0048] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0049] 1 plasma generating device, 2 photocatalytic device, 21 light source, 22 photocatalyst plate, 3 humidifying device. DETAILED DESCRIPTION

[0050] The principles and features of the present application are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present application and are not used to limit the scope of the present application.

[0051] In the related art, the sterilization performance of the plasma generator used for sterilization on the air conditioner is limited by the excessive ozone, and the sterilization rate and ozone concentration cannot be taken into account at the same time; the deodorization performance of the photocatalytic device used for deodorization is limited by the machine power, and the deodorization effect and input power cannot be taken into account at the same time.

[0052] To this end, the embodiments of the present application provide a purification device, an air treatment equipment and a control method thereof, which adopt plasma purification technology and photocatalytic purification technology, and realize the mutual promotion and combination of plasma purification technology and photocatalytic purification technology, thereby producing a synergistic effect of 1+1>2, which not only solves the problems of excessive ozone and low sterilization rate of the plasma generating device, but also solves the problems of poor deodorization effect and limited power of the photocatalytic device.

[0053] The following is a detailed description with reference to the accompanying drawings.

[0054] like Figure 1 As shown, an embodiment of the present application provides a purification device, including: a plasma generating device 1 and a photocatalytic device 2.

[0055] The plasma generating device 1 is configured to generate plasma to realize the air purification function by utilizing the plasma purification principle.

[0056] The photocatalytic device 2 is arranged on the airflow path of the plasma generating device 1 to ensure that the airflow flowing through the plasma generating device 1 can also flow through the photocatalytic device 2. The photocatalytic device 2 is arranged to realize the purification function by using the photocatalytic purification principle. In addition, the photocatalytic device 2 and the plasma generating device 1 are arranged side by side and spaced apart, and the spacing between the photocatalytic device 2 and the plasma generating device 1 is adjustable.

[0057] The purification device provided in the embodiment of the present application includes a plasma generating device 1 and a photocatalytic device 2. The plasma generating device 1 can use the plasma electrostatic field to decompose and destroy bacteria, thereby achieving a sterilization effect. The photocatalytic device 2 can generate active oxygen such as hydroxyl radicals, thereby achieving a deodorization effect. Since ozone is generated during the operation of the plasma generating device 1, ozone also has strong oxidizing properties, and thus can also oxidize and decompose organic pollutants, thereby achieving a certain deodorization effect.

[0058] Furthermore, the inventors of the present application have discovered through research that the photocatalytic device 2 can convert the ozone generated during the operation of the plasma generator 1 into hydroxyl radicals with stronger oxidizing properties, thereby consuming ozone while increasing the amount of hydroxyl radicals generated. This not only solves the limitation of ozone concentration on the operating voltage of the plasma generator 1, but also increases the amount of hydroxyl radicals generated without increasing the input power of the photocatalytic device 2. This is beneficial for reducing the ozone concentration and improving the sterilization and deodorization effects of the purification device.

[0059] In addition, since the photocatalytic device 2 is arranged on the air flow path of the plasma generating device 1, and the distance between the photocatalytic device 2 and the plasma generating device 1 is adjustable, the distance between the photocatalytic device 2 and the plasma generating device 1 can be adjusted during use to maintain an optimal distance between the photocatalytic device 2 and the plasma generating device 1. This is beneficial for the ozone generated by the plasma generating device 1 to be irradiated by the light source 21 of the photocatalytic device 2 as much as possible to improve the conversion rate of ozone to hydroxyl radicals, and is also beneficial for the photocatalytic device 2 and the plasma generating device 1 to maintain a safe electrical gap under different voltages to ensure the safe use of the purification device.

[0060] Among them, the photocatalytic device 2 can convert the ozone generated during the operation of the plasma generating device 1 into hydroxyl radicals with stronger oxidizing properties. The specific mechanism is as follows: 1. Ozone molecules can be photolyzed into oxygen atoms under the irradiation of the light source 21 of the photocatalytic device 2, and then continue to react with water molecules in the air to generate hydroxyl radicals, see the following expressions (1) and (2); 2. Ozone replaces oxygen as an electron capture agent to form hydroxyl radicals on the surface of the photocatalyst, see the following expressions (3) to (6).

[0061] (1)O 3 +hv→O·+O 2

[0062] (2)H 2 O+O·→2OH·

[0063] (3)TiO 2 +hν→e - +h +

[0064] (4)O 3 +e - →O 3 - ·

[0065] (5)H + +O 3 - →HO 3 ·

[0066] (6)HO 3 →O 2 +OH

[0067] Expression (1) expresses the reaction of ozone under light. 3 is ozone, hν represents the photon energy provided by the light source 21 of the photocatalytic device 2, O· represents the oxygen atoms (or oxygen atom free radicals) generated by the decomposition of ozone, O 2 Indicates oxygen.

[0068] Expression (2) expresses the reaction between oxygen atom free radical and water molecule to generate hydroxyl free radical, H 2 O represents a water molecule, O· represents an oxygen atom free radical, and OH· represents a hydroxyl free radical.

[0069] Expression (3) expresses the reaction that occurs when the light source 21 of the photocatalytic device 2 irradiates the photocatalyst (using titanium dioxide as the photocatalyst), where TiO 2 is titanium dioxide, and hν represents the photon energy provided by the light source 21, e - represents electron, h + Represents holes, that is, when the light source 21 irradiates titanium dioxide, electrons and holes can be generated to participate in the oxidation-reduction reaction.

[0070] Expressions (4) to (6) express that ozone captures electrons and further reacts on the surface of the photocatalyst to generate hydroxyl radicals, where O 3 represents ozone, e - Represents electron, O 3 - · Indicates negatively charged ozone anion free radical, H + represents hydrogen ion, HO 3 · represents hydrogen monoxide peroxyl radical, O 2 represents oxygen molecule, and OH· represents hydroxyl radical.

[0071] Figure 2 The figure shows the decay curves of ozone under different conditions. The upper curve shows the natural decay curve of ozone, and the lower curve shows the decay curve of ozone under photocatalysis. Figure 2 It can be seen that under the photocatalytic condition, the decay curve of ozone is significantly reduced and the decay rate is significantly accelerated. Therefore, it can be seen that the photocatalytic device 2 can consume ozone and reduce the ozone concentration.

[0072] Figure 3 The degradation rate of n-decane under different treatment conditions is shown. Figure 3It can be seen that the degradation rate of n-decane by using ozone alone is less than 30%. The degradation rate of n-decane by using photocatalysis technology alone is less than 50%. The degradation rate of n-decane by photocatalysis and ozone is as high as more than 90%. It can be seen that the combination of photocatalytic device 2 and plasma generating device 1 can significantly improve the deodorization effect.

[0073] In some exemplary embodiments, Figure 1 As shown, the purification device further comprises a humidifying device 3. The humidifying device 3 is arranged on the air flow path of the plasma generating device 1.

[0074] As can be seen from the above expression (2), water molecules react with oxygen molecules to generate hydroxyl radicals. Therefore, by introducing the humidifier 3, the water molecule content in the air can be increased, and the reaction represented by expression (2) can be promoted, thereby improving the conversion efficiency of ozone to hydroxyl radicals, which is conducive to efficiently reducing the ozone concentration and increasing the generation of hydroxyl radicals to improve the sterilization and deodorization effects.

[0075] In some exemplary embodiments, along the airflow direction of the plasma generating device 1, the humidifying device 3 is located at the upstream side of the plasma generating device 1, such as Figure 1 shown.

[0076] In this way, the humidifying device 3 can humidify the airflow passing through the plasma generating device 1, so that the air passing through the plasma generating device 1 contains more water molecules. In this way, the oxygen atom free radicals generated by the photolysis of ozone molecules can fully contact with water molecules, thereby effectively promoting the conversion efficiency of ozone to hydroxyl free radicals.

[0077] In some exemplary embodiments, along the airflow direction of the plasma generating device 1, the photocatalytic device 2 is located at the downstream side of the plasma generating device 1, such as Figure 1 shown.

[0078] In this way, most of the ozone generated by the plasma generating device 1 flows to the photocatalytic device 2 and can be irradiated by the light source 21 of the photocatalytic device 2, so it is more easily consumed by photolysis, which can effectively promote the conversion efficiency of ozone into hydroxyl radicals.

[0079] In some exemplary embodiments, the humidification amount of the humidifier 3 is adjustable. This facilitates the reasonable adjustment of the humidification amount of the humidifier 3 according to the working voltage of the plasma generator 1, which is beneficial to effectively promote the conversion of ozone into hydroxyl radicals and also helps to avoid excessive humidification affecting the comfort of the environment (such as indoor space).

[0080] In an exemplary embodiment, the humidifying device 3 includes an ultrasonic atomizer, the power of the ultrasonic atomizer is adjustable, and the humidification amount of the humidifying device 3 can be adjusted by adjusting the power of the ultrasonic atomizer.

[0081] In some exemplary embodiments, the photocatalytic device 2 includes a light source 21, a photocatalyst and a honeycomb-shaped carrier. The photocatalyst is disposed on the carrier, and the light source 21 is configured to emit light to the photocatalyst. The photocatalyst may also be called a photocatalyst.

[0082] The carrier may be a roughly plate-shaped honeycomb structure, and the carrier loaded with the photocatalyst may be referred to as a photocatalyst plate 22. Figure 1 As shown. The light source 21 can be an ultraviolet lamp, and the ultraviolet lamp can be an LED lamp or a mercury lamp. The ultraviolet lamp can be installed on a lamp board, and multiple ultraviolet lamps can be installed on one lamp board. The lamp board and the photocatalyst board 22 are arranged at intervals relative to each other. The number of lamp boards can be multiple, and the number of photocatalyst boards 22 can also be multiple. Multiple photocatalyst boards 22 can be arranged in parallel and at intervals, and lamp boards can be arranged on both sides of the photocatalyst board 22 to ensure that both sides of the photocatalyst board 22 can be illuminated by ultraviolet light.

[0083] The material of the carrier may be but is not limited to aluminum, which has good strength and processability.

[0084] In some exemplary embodiments, the center line of the honeycomb hole of the carrier is inclined relative to the airflow direction of the plasma generating device 1. In other words, the carrier adopts an inclined hole honeycomb structure. When the thickness of the carrier is the same, compared with the straight hole honeycomb structure, the inclined hole can increase the length of the honeycomb hole, which is beneficial to prolong the reaction time of the photocatalytic reaction and the reaction time of ozone on the surface of the photocatalyst, thereby improving the sterilization and deodorization effect.

[0085] In some exemplary embodiments, the angle between the center line of the honeycomb hole and the airflow direction of the plasma generating device 1 is in the range of 30° to 45°, such as 30°, 32°, 35°, 38°, 40°, 42°, 45°, etc. This is beneficial to improve the sterilization and deodorization effects, and will not produce excessive wind resistance and affect the air outlet efficiency of the purification device.

[0086] Of course, the angle between the center line of the honeycomb hole and the airflow direction of the plasma generating device 1 is not limited to the above range and can be adjusted as needed.

[0087] In some exemplary embodiments, an adsorbent, such as activated carbon, molecular sieve, etc., is also provided on the carrier.

[0088] The adsorbent can adsorb pollutants (such as ozone) in the air, thereby purifying the air. Therefore, the provision of the adsorbent is conducive to further improving the purification effect of the purification device.

[0089] The photocatalyst includes but is not limited to titanium dioxide. The photocatalyst and the adsorbent can be mixed in a certain proportion by physical / chemical mixing, and then loaded on a carrier to improve the utilization rate of ozone and the purification effect of the purification device.

[0090] In some exemplary embodiments, the light source 21 is configured to emit ultraviolet light with a wavelength lower than 320 nm, such as ultraviolet light of 254 nm. Ultraviolet light in this wavelength band can efficiently promote the conversion of ozone into hydroxyl radicals.

[0091] In some exemplary embodiments, the purification device also includes a driving device (not shown in the figures), which is connected to the plasma generating device 1 and / or the photocatalytic device 2 and is configured to drive the plasma generating device 1 and / or the photocatalytic device 2 to move so as to adjust the distance between the plasma generating device 1 and the photocatalytic device 2.

[0092] The driving device may be, but is not limited to: a motor + gear + rack, a motor + turbine + worm, a motor + lead screw + a slider with an internal thread.

[0093] The purification device may also be provided with a guide portion (not shown in the figure), such as a guide rail or a slide groove, for guiding the plasma generating device 1 and the photocatalytic device 2 to move relative to each other so as to adjust the distance between the two.

[0094] It should be noted that the purification device of the embodiment of the present application can be used alone or in other equipment such as air treatment equipment.

[0095] The embodiment of the present application also provides an air treatment device (not shown in the figure), including a purification device as in any one of the above embodiments, and thus has all the above-mentioned beneficial effects, which will not be repeated here.

[0096] In some exemplary embodiments, the air treatment device may further include a housing. The housing is provided with an air inlet and an air outlet, the purification device may be arranged in the housing, and the airflow entering the housing from the air inlet can flow through the humidifying device 3, the plasma generating device 1 and the photocatalytic device 2 of the purification device, and be discharged from the air outlet after purification.

[0097] It should be noted that the specific type of the air handling device is not limited here, and may be, for example, an air conditioner, an air purifier, or a humidifier, etc. Exemplarily, the air handling device is an air conditioner. The specific type of the air conditioner is not limited here, and may be a split floor-standing air conditioner, a split wall-mounted air conditioner, an integrated air conditioner, etc.

[0098] In some exemplary embodiments, the air handling device further comprises: a microorganism detector, wherein the microorganism monitor is configured to detect the concentration of microorganisms in the environment.

[0099] Specifically, the environment may refer to an indoor space.

[0100] The air treatment equipment of the embodiment of the present application can use a microorganism detector to detect the concentration of microorganisms in the environment before starting the purification device, and determine parameters such as wind speed, working voltage of the plasma generator 1, and purification time according to the concentration range of the microorganisms. Then, the plasma generator 1 and the fan are started according to the determined parameters and run for a certain period of time.

[0101] In some exemplary embodiments, the air treatment device further includes: an ozone concentration detector, wherein the ozone concentration monitor is configured to detect the ozone concentration in the environment.

[0102] During the operation of the air treatment equipment, the ozone concentration in the environment can be always detected by the ozone concentration detector. If the ozone concentration exceeds the safe concentration (such as 50ppb), the photocatalytic device 2 and the humidifying device 3 are turned on to reduce the ozone concentration in the environment and minimize the harm of ozone to the human body.

[0103] like Figure 4 As shown, the embodiment of the present application also provides a control method for the air treatment equipment as in the above embodiment. The control method includes:

[0104] Step S102: Determine the purification mode;

[0105] Step S104: controlling the purification device according to the determined purification mode.

[0106] In this way, the operation of the purification device can be matched with the purification mode, which is beneficial to taking into account both the air purification effect and the energy consumption of the air treatment equipment.

[0107] Among them, the method for determining the purification mode can come from user instructions, such as the user operating the corresponding operating components of the air treatment equipment (such as buttons, knobs, touch screens, remote controls, etc.), or sending purification mode instructions through terminal devices (such as mobile phone apps, etc.).

[0108] The method for determining the purification mode may also be that the machine determines it by itself through detection. For example, if it is detected that the concentration of air pollutants is within the set threshold range corresponding to each purification mode, purification is performed through the corresponding purification mode.

[0109] In some exemplary embodiments, the air treatment device further comprises a fan, which is configured to drive the gas to flow through the plasma generating device 1 and the photocatalytic device 2. The purification mode comprises a first purification mode.

[0110] like Figure 5 As shown, controlling the purification device according to the determined purification mode includes:

[0111] Based on the fact that the determined purification mode is the first purification mode and the concentration of microorganisms in the environment exceeds the first set concentration range, the plasma generating device 1 is turned on and the fan is kept running.

[0112] The first purification mode can be referred to as a sterilization mode. The first set concentration range can be referred to as a set concentration range of microorganisms. The first set concentration range can be, but is not limited to: <2500 cfu / m 3 .

[0113] When the concentration of microorganisms in the environment exceeds the first set concentration range, the air treatment device can operate the first purification mode. In the first purification mode, the plasma generator 1 and the fan are turned on, and the air in the environment can enter the air treatment device under the action of the fan, and the plasma generator 1 can sterilize the air. The sterilizing substance generated by the plasma generator 1 can also be diffused into the environment with the wind to disinfect the microorganisms in the environment. As the purification device runs, the concentration of microorganisms in the environment will gradually decrease to below the first set concentration range.

[0114] In other embodiments, the plasma generating device 1 may be turned on and the fan may be kept running directly based on the determined purification mode being the first purification mode.

[0115] In other words, regardless of whether the concentration of microorganisms in the environment exceeds the first set concentration range, when the purification mode is determined to be the first purification mode, the plasma generating device 1 is turned on and the fan is kept running. In this way, the control logic of the air treatment equipment is also simpler, and it is also convenient to meet the user's immediate sterilization needs.

[0116] In the embodiment of the present application, the fan can be a fan included in the air conditioner itself, so the fan can operate independently of the purification device, that is, when the purification device is in the off state, the fan can be in the running state or in the off state. Therefore, "keeping the fan running" can include two situations: 1) the fan is in the off state before the plasma generating device 1 is turned on, then the fan switches from the off state to the running state and keeps running; 2) the fan is in the running state before the plasma generating device 1 is turned on, at this time the fan continues to maintain the running state (but the air volume can change).

[0117] In some exemplary embodiments, the air treatment device further comprises a fan, which is configured to drive the gas to flow through the plasma generating device 1 and the photocatalytic device 2. The purification mode comprises a second purification mode.

[0118] like Figure 6 As shown, controlling the purification device according to the determined purification mode includes:

[0119] Based on the fact that the determined purification mode is the second purification mode and the TVOC concentration in the environment exceeds the second set concentration range, the plasma generating device 1 and the photocatalytic device 2 are turned on and the fan is kept running.

[0120] The second set concentration range can be called the set concentration range of TVOC (Total Volatile Organic Compounds). TVOC can include organic pollutants such as formaldehyde and n-decane. Since TVOC usually has a smell, the second purification mode can be called a deodorization mode. Among them, the second set concentration range can be but is not limited to: <50ppb.

[0121] When the TVOC concentration in the environment exceeds the second set concentration range, the air treatment device can operate the second purification mode. In the second purification mode, the plasma generator 1, the photocatalytic device 2 and the fan are all turned on. The air in the environment can enter the air treatment device under the action of the fan, and the photocatalytic device 2 can deodorize the air. The ozone generated by the plasma generator 1 can also oxidize and decompose organic pollutants in the air to deodorize the air. The ozone generated by the plasma generator 1 can also be converted into hydroxyl radicals to deodorize the air, so the plasma generator 1 is also turned on, which can effectively improve the deodorization effect.

[0122] In other embodiments, the plasma generating device 1 and the photocatalytic device 2 may be turned on and the fan may be kept running directly based on the determined purification mode being the second purification mode.

[0123] In other words, regardless of whether the TVOC concentration in the environment exceeds the second set concentration range, when the purification mode is determined to be the second purification mode, the plasma generating device 1 and the photocatalytic device 2 are turned on and the fan is kept running. In this way, the control logic of the air treatment equipment is also simpler, and it is also convenient to meet the user's immediate deodorization needs.

[0124] Similarly, "keeping the fan running" can also include two situations: 1) the fan is in a closed state before the plasma generating device 1 and the photocatalytic device 2 are turned on, then the fan switches from the closed state to the running state and keeps running; 2) the fan is in the running state before the plasma generating device 1 and the photocatalytic device 2 are turned on, at this time the fan continues to maintain the running state (but the air volume can change).

[0125] In some exemplary embodiments, the purification device further comprises a humidifying device 3. Figure 5 As shown, controlling the purification device according to the determined purification mode also includes:

[0126] Based on the fact that the determined purification mode is the first purification mode and the ozone concentration in the environment exceeds the first set threshold, the photocatalytic device 2 and the humidifying device 3 are turned on, and the air volume of the fan is increased.

[0127] In the first purification mode, the plasma generator 1 is turned on and operated, which will generate ozone, which may cause the ozone concentration in the environment to exceed the standard. When the ozone concentration exceeds the first set threshold, the photocatalytic device 2 and the humidifying device 3 are turned on to efficiently convert ozone into hydroxyl radicals, thereby consuming ozone and reducing the ozone concentration in the environment to avoid excessive ozone causing harm to the human body. By increasing the air volume of the fan, the conversion rate of ozone can be increased so that the ozone concentration can be quickly reduced.

[0128] In other embodiments, based on the determination that the purification mode is the first purification mode and the ozone concentration in the environment exceeds the first set threshold, only the photocatalytic device 2 and the humidifying device 3 may be turned on, but the air volume of the fan is not increased, and the fan may maintain the current air volume.

[0129] In some exemplary embodiments, the purification device further comprises a humidifying device 3. Figure 6 As shown, controlling the purification device according to the determined purification mode also includes:

[0130] Based on the fact that the determined purification mode is the second purification mode and the ozone concentration in the environment exceeds the second set threshold, the humidifier 3 is turned on and the air volume of the fan is increased.

[0131] In the second purification mode, the plasma generator 1 is turned on and operated, which will generate ozone and may also cause the ozone concentration in the environment to exceed the standard. When the ozone concentration exceeds the second set threshold, by turning on the humidifier 3, the photocatalytic device 2 and the humidifier 3 can efficiently convert ozone into hydroxyl radicals, thereby consuming ozone and reducing the ozone concentration in the environment to avoid excessive ozone causing harm to the human body. By increasing the air volume of the fan, the conversion rate of ozone can be increased so that the ozone concentration can be quickly reduced.

[0132] In other embodiments, based on the fact that the determined purification mode is the second purification mode and the ozone concentration in the environment exceeds the second set threshold, the humidifier 3 may be turned on without increasing the air volume of the fan, and the fan may maintain the current air volume.

[0133] In some exemplary embodiments, Figure 5 As shown, controlling the purification device according to the determined purification mode also includes:

[0134] Based on the determined purification mode being the first purification mode, before the plasma generator 1 is turned on and the fan is kept running, the working parameters of the plasma generator 1 are determined according to the concentration of microorganisms in the environment, and the distance between the plasma generator 1 and the photocatalytic device 2 is adjusted according to the working parameters of the plasma generator 1. The working parameters of the fan can be determined. For example, the air volume of the fan can be a set value (such as 70% of the rated air volume), and does not need to be determined according to the concentration of microorganisms.

[0135] In this way, the working parameters of the plasma generator 1 can match the concentration of microorganisms in the environment, which is conducive to taking into account both the sterilization effect and the energy consumption of the air treatment equipment. In addition, the distance between the plasma generator 1 and the photocatalytic device 2 can also match the working parameters of the plasma generator 1 to ensure that there is a reasonable and safe electrical gap between the two, taking into account both the air purification effect and electrical safety, and ensuring the safe and reliable operation of the air treatment equipment.

[0136] The distance between the plasma generator 1 and the photocatalytic device 2 can be adjusted according to the general requirements of Part 1 of GB 4706.1-2005 (the abbreviation of "Safety of Household and Similar Electrical Appliances"). The pulse voltage of the plasma generator 1 is determined according to the input power of the plasma generator 1, and then the distance between the plasma generator 1 and the photocatalytic device 2 is determined according to the pulse voltage of the plasma generator 1 with reference to the requirements of the above standard. The distance between the plasma generator 1 and the photocatalytic device 2 can be 1.2 times the distance required by the above standard.

[0137] For example: when the pulse voltage of the plasma generator 1 is lower than 1500V, the distance between the plasma generator 1 and the photocatalytic device 2 is 1.2 times of 0.5mm. When the pulse voltage of the plasma generator 1 is 2500V, the distance between the plasma generator 1 and the photocatalytic device 2 is 1.2 times of 1.5mm. When the pulse voltage of the plasma generator 1 is 4000V, the distance between the plasma generator 1 and the photocatalytic device 2 is 1.2 times of 3.0mm. When the pulse voltage of the plasma generator 1 is 6000V, the distance between the plasma generator 1 and the photocatalytic device 2 is 1.2 times of 5.5mm. When the pulse voltage of the plasma generator 1 is 8000V, the distance between the plasma generator 1 and the photocatalytic device 2 is 1.2 times of 8.0mm. When the pulse voltage of the plasma generator 1 is 10000V, the distance between the plasma generator 1 and the photocatalytic device 2 is 1.2 times of 11.0mm.

[0138] In some exemplary embodiments, Figure 6 As shown, controlling the purification device according to the determined purification mode also includes:

[0139] Based on the determined purification mode as the second purification mode, before turning on the plasma generator 1 and the photocatalytic device 2 and keeping the fan running, the working parameters of the plasma generator 1 are determined according to the TVOC concentration in the environment, and the distance between the plasma generator 1 and the photocatalytic device 2 is adjusted according to the working parameters of the plasma generator 1. The working parameters of the photocatalytic device 2 and the working parameters of the fan can be determined. For example: the input power of the photocatalytic device 2 can be a set power (such as rated power, to ensure efficient treatment of TVOC); the air volume of the fan can be a set value (such as 70% of the rated air volume), and it does not need to be determined according to the microbial concentration.

[0140] In this way, the working parameters of the plasma generator 1 can be matched with the TVOC concentration in the environment, which is beneficial to take into account both the purification effect and the energy consumption of the air treatment equipment. In addition, the distance between the plasma generator 1 and the photocatalytic device 2 can also be matched with the working parameters of the plasma generator 1 to ensure that there is a reasonable and safe electrical gap between the two, taking into account both the air purification effect and electrical safety, and ensuring the safe and reliable operation of the air treatment equipment.

[0141] The distance between the plasma generating device 1 and the photocatalytic device 2 can be adjusted according to the general requirements of Part 1 of GB 4706.1-2005 (abbreviation for "Safety of Household and Similar Electrical Appliances"). For details, please refer to the previous description and will not be repeated here.

[0142] In some exemplary embodiments, Figure 5 As shown, determining the working parameters of the plasma generating device 1 according to the concentration of microorganisms in the environment includes: determining a first environmental quality level according to the concentration of microorganisms in the environment, and determining the working parameters of the plasma generating device 1 according to the first environmental quality level.

[0143] In some embodiments, the working parameters of the plasma generating device 1 include input power, and the input power of the plasma generating device 1 is positively correlated with the concentration of microorganisms in the environment. The first environmental quality level is an environmental quality level divided according to the concentration of microorganisms in the environment.

[0144] For example, according to the concentration range of microbial concentration, the first environmental quality level can be divided into but not limited to four levels. The concentration range corresponding to the fourth level is: C>10000 cfu / m 3 ; The concentration range corresponding to level 3 is: 5000 cfu / m 3 ≤C≤10000cfu / m 3 ; The concentration range corresponding to the second level is: 2500cfu / m 3 ≤C<5000cfu / m 3; The concentration range corresponding to the first level is: C<2500cfu / m 3 .

[0145] When the concentration of microorganisms in the environment meets C < 2500 cfu / m 3 When the first environmental quality level is level one, it indicates that the concentration of microorganisms in the environment is within a safe range and no sterilization treatment is required. Therefore, there is no need to turn on the plasma generating device 1 and the air treatment equipment does not need to run the first purification mode.

[0146] When the concentration of microorganisms in the environment reaches 2500 cfu / m 3 ≤C<5000cfu / m 3 When the first environmental quality level is level two, it indicates that the concentration of microorganisms in the environment is slightly higher than the safety range and needs to be sterilized, but not too much sterilizing substance is needed to meet the sterilization requirements. Therefore, the input power of the plasma generator 1 can be appropriately lower, such as 30% of the rated power.

[0147] When the concentration of microorganisms in the environment reaches 5000 cfu / m 3 ≤C≤10000cfu / m 3 When the first environmental quality level is level three, it indicates that the concentration of microorganisms in the environment is significantly higher than the safe range and sterilization is required. Therefore, the input power of the plasma generating device 1 needs to be appropriately higher, such as 60% of the rated power.

[0148] When the concentration of microorganisms in the environment meets C>10000 cfu / m 3 When the first environmental quality level is level four, it indicates that the concentration of microorganisms in the environment is seriously higher than the safe range and sterilization is required. Therefore, the input power of the plasma generating device 1 needs to be higher to meet the sterilization requirements, such as the rated power.

[0149] In some exemplary embodiments, Figure 6 As shown, determining the working parameters of the plasma generating device 1 according to the TVOC concentration in the environment includes: determining the second environmental quality level according to the TVOC concentration in the environment, and determining the working parameters of the plasma generating device 1 according to the second environmental quality level.

[0150] In some embodiments, the working parameters of the plasma generating device 1 include input power, and the input power of the plasma generating device 1 is positively correlated with the TVOC concentration in the environment. The second environmental quality level is an environmental quality level divided according to the TVOC concentration in the environment.

[0151] For example, according to the concentration range of TVOC concentration, the second environmental quality level can be divided into but not limited to four levels. The concentration range corresponding to the fourth level is: C>2mg / m 3 ; The concentration range corresponding to the third level is: 1mg / m 3 ≤C≤2mgcfu / m 3 ; The concentration range corresponding to the second level is: 0.2mg / m 3 ≤C<1mg / m 3 ; The concentration range corresponding to the first level is: C<0.2mg / m 3 .

[0152] When the TVOC concentration in the environment satisfies C<0.2mg / m 3 When the second environmental quality level is level one, it means that the TVOC concentration in the environment is within a safe range and no deodorization and purification treatment is required. Therefore, there is no need to turn on the plasma generating device 1 and the photocatalytic device 2, and the air treatment equipment does not need to run the second purification mode.

[0153] When the TVOC concentration in the environment meets 0.2 mg / m 3 ≤C<1mg / m 3 When the second environmental quality level is level two, it means that the TVOC concentration in the environment is slightly higher than the safety range and needs to be deodorized and purified, but not too much deodorizing substance is needed to meet the sterilization requirements. Therefore, the input power of the plasma generator 1 can be appropriately lower, such as 30% of the rated power.

[0154] When the TVOC concentration in the environment meets 1 mg / m 3 ≤C≤2mgcfu / m 3 When the second environmental quality level is level three, it indicates that the TVOC concentration in the environment is significantly higher than the safe range and deodorization is required. Therefore, the input power of the plasma generating device 1 needs to be appropriately higher, such as 60% of the rated power.

[0155] When the TVOC concentration in the environment satisfies C>2mg / m 3 When the second environmental quality level is level four, it indicates that the TVOC concentration in the environment is seriously higher than the safe range and deodorization treatment is required. Therefore, the input power of the plasma generator 1 needs to be higher, such as the rated power, to meet the deodorization and purification needs.

[0156] In some exemplary embodiments, Figure 5 As shown, controlling the purification device according to the determined purification mode also includes:

[0157] Based on the determined purification mode being the first purification mode and the ozone concentration in the environment exceeding the first set threshold, before the photocatalytic device 2 and the humidifying device 3 are turned on and the air volume of the fan is increased, the working parameters of the photocatalytic device 2, the working parameters of the humidifying device 3 and the air volume of the fan are determined according to the ozone concentration in the environment. The first set threshold may be, but is not limited to, 50ppm.

[0158] In this way, the working parameters of the photocatalytic device 2, the working parameters of the humidifying device 3, and the air volume of the fan can match the ozone concentration in the environment, which is beneficial to effectively reduce the ozone concentration while taking into account the energy efficiency of the air treatment equipment.

[0159] In some exemplary embodiments, Figure 6 As shown, controlling the purification device according to the determined purification mode also includes: based on the determined purification mode being the second purification mode and the ozone concentration in the environment exceeding the second set threshold, before turning on the humidifier 3 and increasing the air volume of the fan, determining the working parameters of the humidifier 3 and the air volume of the fan according to the ozone concentration in the environment. The second set threshold can be, but is not limited to, 50ppm.

[0160] In this way, the working parameters of the humidifying device 3 and the air volume of the fan can be matched with the ozone concentration in the environment, which is beneficial to effectively reduce the ozone concentration while taking into account the energy efficiency of the air treatment equipment.

[0161] In some exemplary embodiments, Figure 5 As shown, the working parameters of the photocatalytic device 2, the working parameters of the humidifying device 3 and the air volume of the fan are determined according to the ozone concentration in the environment, including: determining the ozone concentration level according to the ozone concentration in the environment, and determining the working parameters of the photocatalytic device 2, the working parameters of the humidifying device 3 and the air volume of the fan according to the ozone concentration level.

[0162] Among them, the working parameters of the photocatalytic device 2 include input power, and the working parameters of the humidifying device 3 include input power. The input power of the photocatalytic device 2 is positively correlated with the ozone concentration in the environment. The input power of the humidifying device 3 is positively correlated with the ozone concentration in the environment. The air volume of the fan is positively correlated with the ozone concentration in the environment.

[0163] In other words, the higher the ozone concentration in the environment, the greater the input power of the photocatalytic device 2, the greater the input power of the humidifying device 3, and the higher the air volume of the fan. This is conducive to quickly and efficiently reducing the ozone concentration in the environment.

[0164] According to the concentration range of ozone in the environment, the ozone concentration can be divided into multiple levels, and then the working parameters of the photocatalytic device 2, the working parameters of the humidifying device 3 and the air volume of the fan are determined according to the ozone concentration level.

[0165] For example: the ozone concentration in the environment is divided into but not limited to four levels (respectively denoted as C1, C2, C3, and C4), and the concentration ranges corresponding to the four levels are: C1<50ppb, 50ppb≤C2<100ppb, 100ppb≤C3≤150ppb, C4>150ppb.

[0166] When the ozone concentration in the environment is at level C1, it indicates that the ozone concentration in the environment is within a safe range, so there is no need to turn on the photocatalytic device 2 and the humidifying device 3, and there is no need to increase the air volume of the fan.

[0167] When the ozone concentration in the environment is at level C2, it indicates that the ozone concentration in the environment slightly exceeds the safety range. The input power of the photocatalytic device 2 and the humidifying device 3 can be relatively low, for example, both can be 30% of the rated power, which can quickly reduce the ozone concentration to a safe range and meet the purification requirements.

[0168] When the ozone concentration in the environment is at level C3, it indicates that the ozone concentration in the environment obviously exceeds the safe range. The input power of the photocatalytic device 2 and the humidifying device 3 can be relatively high, for example, both can be 60% of the rated power, to ensure that the ozone concentration can be quickly reduced to a safe range to meet the purification requirements.

[0169] When the ozone concentration in the environment is at level C4, it indicates that the ozone concentration in the environment is seriously exceeded. The input power of the photocatalytic device 2 and the humidifying device 3 can be higher, for example, both can be rated power, to ensure that the ozone concentration can be quickly reduced to a safe range to meet the purification requirements.

[0170] As for the increase in the fan air volume, it can be, but is not limited to: for each level increase in ozone concentration, the fan air volume increases by 10% on the current basis. For example: when the ozone concentration does not exceed the standard (i.e., level C1), the fan air volume is 70% of the rated air volume; when the ozone concentration is level C2, the fan air volume is 80% of the rated air volume; when the ozone concentration is level C3, the fan air volume is 90% of the rated air volume; when the ozone concentration is level C4, the fan air volume is 100% of the rated air volume.

[0171] In some exemplary embodiments, Figure 6 As shown, the working parameters of the humidifier 3 and the air volume of the fan are determined according to the ozone concentration in the environment, including: determining the ozone concentration level according to the ozone concentration in the environment, and determining the working parameters of the humidifier 3 and the air volume of the fan according to the ozone concentration level.

[0172] The working parameters of the humidifier 3 include input power. The input power of the humidifier 3 is positively correlated with the ozone concentration in the environment. The air volume of the fan is positively correlated with the ozone concentration in the environment.

[0173] In other words, the higher the ozone concentration in the environment, the greater the input power of the humidifier 3 and the higher the air volume of the fan. This is conducive to quickly and efficiently reducing the ozone concentration in the environment.

[0174] According to the concentration range of ozone in the environment, the ozone concentration can be divided into multiple levels, and then the working parameters of the photocatalytic device 2, the working parameters of the humidifying device 3 and the air volume of the fan are determined according to the ozone concentration level.

[0175] For example: the ozone concentration in the environment is divided into but not limited to four levels (respectively denoted as C1, C2, C3, and C4), and the concentration ranges corresponding to the four levels are: C1<50ppb, 50ppb≤C2<100ppb, 100ppb≤C3≤150ppb, C4>150ppb.

[0176] When the ozone concentration in the environment is at level C1, it indicates that the ozone concentration in the environment is within a safe range, so there is no need to turn on the humidifier 3 or increase the air volume of the fan.

[0177] When the ozone concentration in the environment is at level C2, it indicates that the ozone concentration in the environment slightly exceeds the safe range. The input power of the humidifier 3 can be relatively low, such as 30% of the rated power, which can quickly reduce the ozone concentration to a safe range and meet the purification requirements.

[0178] When the ozone concentration in the environment is at level C3, it indicates that the ozone concentration in the environment obviously exceeds the safe range. The input power of the humidifier 3 can be relatively high, such as 60% of the rated power, to ensure that the ozone concentration can be quickly reduced to a safe range to meet the purification requirements.

[0179] When the ozone concentration in the environment is at level C4, it indicates that the ozone concentration in the environment is seriously exceeded. The input power of the humidifier 3 can be higher, such as the rated power, to ensure that the ozone concentration can be quickly reduced to a safe range to meet the purification requirements.

[0180] As for the increase in the fan air volume, it can be, but is not limited to: for each level increase in ozone concentration, the fan air volume increases by 10% on the current basis. For example: when the ozone concentration does not exceed the standard (i.e., level C1), the fan air volume is 70% of the rated air volume; when the ozone concentration is level C2, the fan air volume is 80% of the rated air volume; when the ozone concentration is level C3, the fan air volume is 90% of the rated air volume; when the ozone concentration is level C4, the fan air volume is 100% of the rated air volume.

[0181] In some exemplary embodiments, Figure 5 and Figure 6 As shown, controlling the purification device according to the determined purification mode also includes:

[0182] When the operation time of the purification device reaches the set time, the purification device is turned off, and the distance between the plasma generating device 1 and the photocatalytic device 2 is reset to the initial value.

[0183] The operating time of the purification device is equal to the operating time of the plasma generating device 1. Therefore, for the first purification mode, when the plasma generating device 1 is turned on, the timing starts and the ozone concentration in the environment is monitored. If the ozone concentration exceeds the first set threshold, the photocatalytic device 2 and the humidifying device 3 are turned on, and the air volume can be increased. When the timing ends, the purification device is turned off and the distance between the plasma generating device 1 and the photocatalytic device 2 is reset.

[0184] For the second purification mode, when the plasma generator 1 and the photocatalytic device 2 are turned on, the timing starts and the ozone concentration in the environment is monitored. If the ozone concentration exceeds the second set threshold, the humidifier 3 is turned on and the air volume can be increased. When the timing ends, the purification device is turned off and the distance between the plasma generator 1 and the photocatalytic device 2 is reset.

[0185] An embodiment of the present application also provides a control device (not shown in the figure), including a processor and a memory storing a computer program. When the processor executes the computer program, the steps of the control method as in any of the above embodiments are implemented, and thus all the above-mentioned beneficial effects are achieved, which will not be repeated here.

[0186] The processor may be an integrated circuit chip with signal processing capabilities. The above-mentioned processor may be a general-purpose processor, including a central processing unit (CPU), a network processor (NP), etc.; it may also be a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components. The methods, steps and logic block diagrams disclosed in the embodiments of the present invention may be implemented or executed. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc.

[0187] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0188] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0189] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0190] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0191] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0192] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

[0193] In any one or more of the above exemplary embodiments, the functions described may be implemented in hardware, software, firmware, or any combination thereof. If implemented in software, the functions may be stored on a computer-readable medium or transmitted via a computer-readable medium as one or more instructions or codes, and executed by a hardware-based processing unit. A computer-readable medium may include a computer-readable storage medium corresponding to a tangible medium such as a data storage medium, or a communication medium that facilitates a computer program, such as any medium transmitted from one place to another according to a communication protocol. In this way, a computer-readable medium may generally correspond to a non-temporary tangible computer-readable storage medium or a communication medium such as a signal or carrier wave. A data storage medium may be any available medium that can be accessed by one or more computers or one or more processors to retrieve instructions, codes, and / or data structures for implementing the technology described in the present disclosure. A computer program product may include a computer-readable medium.

[0194] By way of example and not limitation, such computer-readable storage media may include RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage or other magnetic storage, flash memory, or any other medium that can be used to store the desired program code in the form of instructions or data structures and can be accessed by a computer. Moreover, any connection may also be referred to as a computer-readable medium. For example, if instructions are transmitted from a website, server or other remote source using coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or wireless technologies such as infrared, radio and microwave, then coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, radio and microwave are included in the definition of medium. However, it should be understood that computer-readable storage media and data storage media do not include connections, carrier waves, signals, or other transient (transient) media, but are directed to non-transient tangible storage media. As used herein, disks and optical disks include compact disks (CDs), laser disks, optical disks, digital versatile disks (DVDs), floppy disks, or Blu-ray disks, etc., where disks typically reproduce data magnetically, while optical disks use lasers to reproduce data optically. Combinations of the above should also be included within the scope of computer-readable media.

[0195] For example, instructions may be executed by one or more processors such as one or more digital signal processors (DSPs), general purpose microprocessors, application specific integrated circuits (ASICs), field programmable logic arrays (FPGAs), or other equivalent integrated or discrete logic circuits. Thus, the term "processor" as used herein may refer to any of the above structures or any other structures suitable for implementing the techniques described herein. Additionally, in some aspects, the functionality described herein may be provided within dedicated hardware and / or software modules configured for encoding and decoding, or incorporated in a combined codec. Also, the techniques may be fully implemented in one or more circuits or logic elements.

[0196] The technical solutions of the embodiments of the present disclosure can be implemented in a wide variety of devices or equipment, including wireless mobile phones, integrated circuits (ICs) or a group of ICs (e.g., chipsets). Various components, modules or units are described in the embodiments of the present disclosure to emphasize the functional aspects of the devices configured to perform the described techniques, but they do not necessarily need to be implemented by different hardware units. Instead, as described above, the various units can be combined in a codec hardware unit or provided by a collection of interoperable hardware units (including one or more processors as described above) in combination with suitable software and / or firmware.

Claims

1. A purification device, characterized in that: include: Plasma generating device; and The photocatalytic device is spaced apart from the plasma generating device, and the distance between the photocatalytic device and the plasma generating device is adjustable.

2. The purification device according to claim 1, characterized in that: Also includes: The humidifying device is arranged on the air flow path of the plasma generating device.

3. The purification device according to claim 2, characterized in that: Along the airflow direction of the plasma generating device, the humidifying device is located at the upstream side of the plasma generating device; and / or The humidifying device comprises an ultrasonic atomizer with adjustable power.

4. The purification device according to any one of claims 1 to 3, characterized in that: Along the airflow direction of the plasma generating device, the photocatalytic device is located at the downstream side of the plasma generating device.

5. The purification device according to any one of claims 1 to 3, characterized in that: The photocatalytic device comprises a light source, a photocatalyst and a honeycomb-shaped carrier, the photocatalyst is arranged on the carrier, and the light source is arranged to emit light to the photocatalyst; Wherein, the center line of the honeycomb holes of the carrier is arranged obliquely relative to the airflow direction of the plasma generating device; and / or An adsorbent is also arranged on the carrier.

6. An air treatment device, characterized in that: The method comprises the purification device as claimed in any one of claims 1 to 5.

7. The air treatment device according to claim 6, characterized in that: Also includes: A microbial detector configured to detect the concentration of microorganisms in an environment; and / or The ozone concentration detector is configured to detect the ozone concentration in the environment.

8. A control method for the air treatment equipment according to claim 6 or 7, characterized in that: The control method comprises: Determine the purification mode; The purification device is controlled according to the determined purification mode.

9. The control method according to claim 8, characterized in that: The air treatment device further comprises a fan, wherein the fan is configured to drive the gas to flow through the plasma generating device and the photocatalytic device; the purification mode comprises a first purification mode and a second purification mode; Based on the determined purification mode being the first purification mode, turning on the plasma generating device and keeping the fan running; Based on the determination that the purification mode is the second purification mode, the plasma generating device and the photocatalytic device are turned on and the fan is kept running.

10. The control method according to claim 8, characterized in that: The air treatment device further comprises a fan, wherein the fan is configured to drive the gas to flow through the plasma generating device and the photocatalytic device; The purification mode includes a first purification mode and a second purification mode; The controlling the purification device according to the determined purification mode comprises: Based on the determined purification mode being the first purification mode and the concentration of microorganisms in the environment exceeding a first set concentration range, turning on the plasma generating device and keeping the fan running; Based on the determination that the purification mode is the second purification mode and the TVOC concentration in the environment exceeds the second set concentration range, the plasma generating device and the photocatalytic device are turned on and the fan is kept running.

11. The control method according to claim 9 or 10, characterized in that: The purification device further includes a humidifying device; and the controlling the purification device according to the determined purification mode further includes: Based on the determined purification mode being the first purification mode and the ozone concentration in the environment exceeding a first set threshold, turning on the photocatalytic device and the humidifying device; Based on the determined purification mode being the second purification mode and the ozone concentration in the environment exceeding a second set threshold, the humidifying device is turned on.

12. The control method according to claim 9 or 10, characterized in that: The purification device further includes a humidifying device; and the controlling the purification device according to the determined purification mode further includes: Based on the determined purification mode being the first purification mode and the ozone concentration in the environment exceeding a first set threshold, turning on the photocatalytic device and the humidifying device, and increasing the air volume of the fan; Based on the fact that the determined purification mode is the second purification mode and the ozone concentration in the environment exceeds the second set threshold, the humidifying device is turned on and the air volume of the fan is increased.

13. The control method according to claim 12, characterized in that: The step of controlling the purification device according to the determined purification mode further includes: Based on the determined purification mode being the first purification mode and the ozone concentration in the environment exceeding the first set threshold, before turning on the photocatalytic device and the humidifying device and increasing the air volume of the fan, determining the operating parameters of the photocatalytic device, the operating parameters of the humidifying device and the air volume of the fan according to the ozone concentration in the environment; Based on the determination that the purification mode is the second purification mode and the ozone concentration in the environment exceeds the second set threshold, before turning on the humidifier and increasing the air volume of the fan, the working parameters of the humidifier and the air volume of the fan are determined according to the ozone concentration in the environment.

14. The control method according to claim 13, characterized in that: The step of determining the working parameters of the photocatalytic device, the working parameters of the humidifying device and the air volume of the fan according to the ozone concentration in the environment comprises: determining the ozone concentration level according to the ozone concentration in the environment, and determining the working parameters of the photocatalytic device, the working parameters of the humidifying device and the air volume of the fan according to the ozone concentration level; Determining the working parameters of the humidifier and the air volume of the fan according to the ozone concentration in the environment includes: determining the ozone concentration level according to the ozone concentration in the environment, and determining the working parameters of the humidifier and the air volume of the fan according to the ozone concentration level.

15. The control method according to claim 9 or 10, characterized in that: The step of controlling the purification device according to the determined purification mode further includes: Based on the determined purification mode being the first purification mode, before turning on the plasma generating device and keeping the fan running, determining the working parameters of the plasma generating device according to the concentration of microorganisms in the environment, and adjusting the distance between the plasma generating device and the photocatalytic device according to the working parameters of the plasma generating device; Based on the determination that the purification mode is the second purification mode, before turning on the plasma generating device and the photocatalytic device and keeping the fan running, the operating parameters of the plasma generating device are determined according to the TVOC concentration in the environment, and the distance between the plasma generating device and the photocatalytic device is adjusted according to the operating parameters of the plasma generating device.

16. The control method according to claim 15, characterized in that: Determining the working parameters of the plasma generating device according to the concentration of microorganisms in the environment includes: determining a first environmental quality level according to the concentration of microorganisms in the environment, and determining the working parameters of the plasma generating device according to the first environmental quality level; Determining the working parameters of the plasma generating device according to the TVOC concentration in the environment includes: determining a second environmental quality level according to the TVOC concentration in the environment, and determining the working parameters of the plasma generating device according to the second environmental quality level.

17. The control method according to claim 15, characterized in that: The step of controlling the purification device according to the determined purification mode further includes: Based on the operating time of the purification device reaching the set time, the purification device is turned off, and the distance between the plasma generating device and the photocatalytic device is reset to an initial value.

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