Air purification device, air treatment equipment and control method and control device of air purification device and air treatment equipment

Abstract

The invention discloses an air purification device, air treatment equipment and a control method and device thereof. The air purification device comprises a mounting frame, a first air inlet and a second air inlet, the dielectric barrier corona discharge assembly is mounted on the mounting frame and comprises a first electrode and a second electrode which are oppositely arranged, and a barrier dielectric layer located between the first electrode and the second electrode; the dielectric barrier corona discharge assembly is arranged to adjust the discharge intensity of the dielectric barrier corona discharge assembly by adjusting discharge intensity parameters, so that gas flowing through the gas flow channel is subjected to purification treatment in different purification modes; the discharge intensity parameters comprise at least one of the following parameters: the distance between the first electrode and the second electrode, and the electrical parameters of the dielectric barrier corona discharge assembly. According to the scheme, the excitation voltage is reduced, the discharge intensity can be controlled according to different purification modes, different purification modes are achieved, and the use experience of a user is improved.

Description

Technical Field

[0001] This application relates to, but is not limited to, the field of air purification technology, specifically to an air purification device, air handling equipment, and its control method and control device. Background Technology

[0002] Currently, dielectric barrier discharge (DBD) generates a large number of ground-state, excited-state, and metastable particles (including molecules, atoms, and free radicals) through electron collision excitation, dissociation, and ionization. These high-energy active particles can eliminate bacteria and viruses by decomposing, dissolving, and destroying membrane structures. However, traditional dielectric barrier discharge has a relatively high excitation voltage and requires high discharge power for excitation. Summary of the Invention

[0003] The technical problem to be solved by this application is to provide an air purification device, an air handling equipment and its control method and control device, which performs air purification treatment based on dielectric barrier corona discharge technology, which is beneficial to reducing the excitation voltage and has the advantage of a wide range of input electrical parameters.

[0004] This application provides an air purification device, including: a mounting frame with an airflow channel; and a dielectric barrier corona discharge assembly mounted on the mounting frame. The dielectric barrier corona discharge assembly includes a first electrode and a second electrode disposed opposite to each other, and a barrier dielectric layer located between the first electrode and the second electrode. The dielectric barrier corona discharge assembly is configured to adjust the discharge intensity of the dielectric barrier corona discharge assembly by adjusting the discharge intensity parameter, so as to perform different purification modes on the gas flowing through the airflow channel. The discharge intensity parameter includes at least one of the following: the distance between the first electrode and the second electrode, and the electrical parameters of the dielectric barrier corona discharge assembly.

[0005] The air purification device provided in this application embodiment generates air-purifying substances based on the discharge of a dielectric barrier corona discharge component, which helps to reduce the excitation voltage. Furthermore, the discharge intensity of the dielectric barrier corona discharge component is adjustable, allowing control of the discharge intensity according to different purification modes to achieve different purification modes and meet the usage needs of different scenarios, thereby improving the user experience.

[0006] This application also provides an air handling device, including an air purification device as described in any of the above embodiments.

[0007] This application also provides a control method applied to the air handling equipment described in the above embodiments, the control method comprising:

[0008] Determine the target purification mode;

[0009] The operating parameters of the dielectric barrier corona discharge component are controlled according to the target purification mode, and the operating parameters include at least the discharge intensity parameter.

[0010] This application also provides a control device, including a processor and a memory storing a computer program, wherein the processor executes the computer program to implement the steps of the control method as described in any of the above embodiments. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the main structure of an air purification device provided in some embodiments of this application;

[0012] Figure 2 for Figure 1 A side view of the air purification device shown.

[0013] Figure 3 This is a schematic diagram of the structure of the mounting bracket provided in some embodiments of this application;

[0014] Figure 4 This is a schematic diagram of the structure of a dielectric barrier corona discharge assembly provided in some embodiments of this application;

[0015] Figure 5 This is a schematic diagram of the structure of the second electrode provided in some embodiments of this application;

[0016] Figure 6 A flowchart illustrating the control method provided in some embodiments of this application;

[0017] Figure 7 This is a flowchart illustrating a control method provided in one embodiment of this application.

[0018] Figures 1 to 5 The list of components represented by each number is as follows:

[0019] 1 Mounting bracket, 11 Second bracket, 111 Guide post, 112 Second mounting slot, 12 First bracket, 121 Guide sleeve, 122 First mounting slot;

[0020] 2. Dielectric barrier corona discharge assembly, 21. First electrode, 211. Conductive substrate, 212. Needle electrode, 2121. First needle electrode, 2122. Second needle electrode, 22. Second electrode, 23. Barrier dielectric, 24. Wire.

[0021] 3. Catalytic structure, 31. Catalytic module, 32. Catalyst layer. Detailed Implementation

[0022] The principles and features of this application are described below with reference to the accompanying drawings. The examples given are only for explaining this application and are not intended to limit the scope of this application.

[0023] like Figures 1 to 5 As shown in the figure, this application provides an air purification device, including: a mounting bracket 1 and a dielectric barrier corona discharge assembly 2.

[0024] The mounting bracket 1 is equipped with an airflow channel.

[0025] The dielectric barrier corona discharge assembly 2 is mounted on the mounting bracket 1. The dielectric barrier corona discharge assembly 2 includes a first electrode 21 and a second electrode 22 disposed opposite to each other, and a barrier dielectric layer 23 located between the first electrode 21 and the second electrode 22. The dielectric barrier corona discharge assembly 2 is configured to adjust the discharge intensity by adjusting the discharge intensity parameters, thereby purifying the gas flowing through the airflow channel in different purification modes to achieve purification functions such as sterilization and deodorization. The discharge intensity parameters include at least one of the following: the distance between the first electrode 21 and the second electrode 22, and the electrical parameters of the dielectric barrier corona discharge assembly 2.

[0026] Compared to traditional air purifiers using dielectric barrier discharge (DBD), dielectric barrier corona discharge (DBCD) exhibits a corona ionization effect within the same applied voltage and discharge space, allowing for the transfer of more charge and more stable discharge. Therefore, compared to traditional dielectric barrier discharge, DBCD requires a relatively lower excitation voltage and offers the advantage of a wider range of input electrical parameters.

[0027] The air purification device provided in this application embodiment generates air-purifying substances based on the discharge of the dielectric barrier corona discharge component 2, which helps to reduce the excitation voltage. Furthermore, the discharge intensity of the dielectric barrier corona discharge component 2 is adjustable, allowing control of the discharge intensity according to different purification modes to achieve different purification modes and meet the usage needs of different scenarios, thereby improving the user experience.

[0028] The discharge intensity can be adjusted by adjusting the distance between the first electrode 21 and the second electrode 22, by adjusting the electrical parameters, or by adjusting the distance between the first electrode 21 and the second electrode 22 and the electrical parameters of the dielectric barrier corona discharge assembly 2.

[0029] In some exemplary embodiments, the air purification device may further include a power supply module, which may include a high-voltage power supply. If the first electrode 21 is a high-voltage electrode and the second electrode 22 is a ground electrode or a low-voltage electrode, then the first electrode 21 is connected to the high-voltage terminal of the power supply module, and the second electrode 22 is connected to the ground terminal or the low-voltage terminal of the power supply module. Alternatively, if the first electrode 21 is a ground electrode or a low-voltage electrode, and the second electrode 22 is a high-voltage electrode, then the second electrode 22 is connected to the high-voltage terminal of the power supply module, and the first electrode 21 is connected to the ground terminal or the low-voltage terminal of the power supply module. Alternatively, if both the first electrode 21 and the second electrode 22 are high-voltage electrodes, then the power supply module may include two high-voltage transformers, with the first electrode 21 and the second electrode 22 respectively connected to the high-voltage terminals of the two high-voltage transformers. However, the output voltages of the two high-voltage transformers have a phase difference, so that the applied voltages of the first electrode 21 and the second electrode 22 have a phase difference.

[0030] In some embodiments, the peak voltage of the loading voltage (i.e. the output voltage of the power supply module) of the dielectric barrier corona discharge component 2 may be in the range of 1kV to 20kV, such as 1kV, 5kV, 10kV, 15kV, 20kV, etc., and the frequency may be in the range of 10kHz to 50kHz, such as 10kHz, 15kHz, 20kHz, 25kHz, 30kHz, 35kHz, 40kHz, 45kHz, 50kHz, etc.

[0031] Of course, the peak voltage and frequency of the dielectric barrier corona discharge component 2 are not limited to the above range and can be adjusted as needed.

[0032] In some exemplary embodiments, such as Figure 1 , Figure 2 and Figure 4 As shown, the first electrode 21 includes a conductive substrate 211 and a plurality of needle electrodes 212 disposed on the conductive substrate 211. The second electrode 22 is a plate-shaped electrode. A barrier dielectric layer 23 is fixed on the plate surface of the second electrode 22 facing the first electrode 21.

[0033] The needle-plate structured discharge assembly exhibits excellent discharge performance, allowing for a wide range of distance variations between the first electrode 21 and the barrier dielectric layer 23. The discharge intensity can be adjusted by changing the spacing. The conductive substrate 211 can be a conductive sheet, which can be laser-drilled to fix it to the needle electrode 212.

[0034] By adjusting the distance between the first electrode 21 and the second electrode 22, the distance between the first electrode 21 and the barrier dielectric layer 23 can be adjusted, thereby adjusting the discharge gap of the dielectric barrier corona discharge assembly 2. Since the discharge gap affects the discharge intensity, the discharge intensity can be adjusted accordingly.

[0035] The electrical parameters include at least one of the following: the number of energized needle electrodes 212, and the applied voltage of the dielectric barrier corona discharge assembly 2.

[0036] In other words, the discharge intensity can be adjusted by adjusting the number of energized needle electrodes 212, or by adjusting the applied voltage of the dielectric barrier discharge assembly, or by adjusting both the number of energized needle electrodes 212 and the applied voltage of the dielectric barrier discharge assembly.

[0037] Of course, the structure of the first electrode 21 and the second electrode 22 is not limited to the needle-plate structure described above. For example, it can also be a wire-plate structure, where the first electrode 21 is a wire electrode and the second electrode 22 is a plate electrode, which can also produce a corona effect and achieve dielectric barrier corona discharge. Correspondingly, the discharge intensity can also be adjusted by adjusting the number of wire electrodes and / or the applied voltage of the dielectric barrier discharge component.

[0038] In some exemplary embodiments, such as Figure 5 As shown, the conductive substrate 211 is circular, and multiple needle electrodes 212 are spaced apart along the circumference of the conductive substrate 211. The second electrode 22 is a circular plate electrode.

[0039] In one example, such as Figure 5 As shown, the multiple needle electrodes 212 can be divided into two groups, and the two groups of needle electrodes 212 are arranged alternately. For example, one group of needle electrodes 212 includes four first needle electrodes 2121, and the other group of needle electrodes 212 includes four second needle electrodes 2122, and the four first needle electrodes 2121 and the four second needle electrodes 2122 are arranged alternately.

[0040] Both sets of needle electrodes 212 can be energized, or only one set of needle electrodes 212 can be energized, thereby adjusting the number of needle electrodes 212 energized and thus adjusting the discharge intensity.

[0041] Of course, the shape of the conductive substrate 211 and the second electrode 22 is not limited to a circle, but can also be other shapes.

[0042] In some embodiments, the diameter of the barrier medium 23 layer is in the range of 1 mm to 50 mm, such as 1 mm, 5 mm, 10 mm, 15 mm, 20 mm, 25 mm, 30 mm, 35 mm, 40 mm, 45 mm, 50 mm, etc. The thickness of the barrier medium 23 layer is in the range of 0.1 mm to 2 mm, such as 0.1 mm, 0.5 mm, 1 mm, 1.5 mm, 2 mm, etc.

[0043] The needle electrode 212 is a tungsten needle electrode 212. The diameter of the needle electrode 212 (the diameter refers to the diameter of the rougher end after the needle electrode is ground to a point) is in the range of 0.1mm to 1.0mm, such as 0.1mm, 0.2mm, 0.3mm, 0.4mm, 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, and 1mm. The length of the needle electrode 212 is in the range of 1mm to 50mm, such as 1mm, 5mm, 10mm, 15mm, 20mm, 25mm, 30mm, 35mm, 40mm, 45mm, and 50mm.

[0044] The second electrode 22 is a stainless steel electrode. The diameter of the second electrode 22 is in the range of 1mm to 50mm, such as 1mm, 5mm, 10mm, 15mm, 20mm, 25mm, 30mm, 35mm, 40mm, 45mm, 50mm, etc. The thickness of the second electrode 22 is in the range of 0.1mm to 2mm, such as 0.1mm, 0.2mm, 0.3mm, 0.4mm, 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, 1mm.

[0045] Experiments have verified that the above-mentioned solution can achieve good air purification effect, requires a relatively low excitation voltage, and has the advantage of a wide range of input parameters.

[0046] Of course, the diameter and thickness of the blocking medium 23 layer, the material, diameter and length of the needle electrode 212, and the material, diameter and thickness of the second electrode 22 are not limited to the above schemes and can be adjusted as needed.

[0047] In some exemplary embodiments, such as Figure 1 , Figure 2 and Figure 3 As shown, the mounting bracket 1 includes a first support 12 and a second support 11 disposed opposite to each other, with the space between the first support 12 and the second support 11 forming an airflow channel. A first electrode 21 is mounted on the first support 12, and a second electrode 22 is mounted on the second support 11. The first support 12 and the second support 11 are movably connected, making the distance between the first electrode 21 and the second electrode 22 adjustable.

[0048] In this way, by adjusting the distance between the first support 12 and the second support 11, the distance between the first electrode 21 and the second electrode 22 can be adjusted without directly driving the first electrode 21 or the second electrode 22 to move, which is beneficial to improving the circuit stability of the first electrode 21 and the second electrode 22.

[0049] The relative movement between the first support 12 and the second support 11 can be driven by a drive mechanism. The form of the drive mechanism is not limited; for example, the drive mechanism can be an electromagnetic push rod. Alternatively, the drive mechanism can include a drive component and a transmission mechanism. The drive component can be a motor, and the transmission mechanism can be, but is not limited to, a rack and pinion transmission mechanism, a lead screw transmission mechanism, etc.

[0050] The drive mechanism can be connected to the first bracket 12 to drive the first bracket 12 to move. The drive mechanism can also be connected to the second bracket 11 to drive the second bracket 11 to move. The drive mechanism can also be connected to both the first bracket 12 and the second bracket 11 to drive the first bracket 12 and the second bracket 11 to move together.

[0051] The first mounting bracket 1 may also have pre-drilled wire holes to facilitate the connection between the first electrode 21 and the power supply module via wires 24. The second mounting bracket 1 may also have pre-drilled wire holes to facilitate the connection between the second electrode 22 and the power supply module via wires 24.

[0052] In some exemplary embodiments, such as Figure 1 and Figure 3 As shown, the first bracket 12 is provided with a first mounting groove 122, and the conductive substrate 211 of the first electrode 21 is installed in the first mounting groove 122. The second bracket 11 is provided with a second mounting groove 112, and the second electrode 22 is installed in the second mounting groove 112.

[0053] The first mounting groove 122 can limit and protect the conductive substrate 211, and the second mounting groove 112 can limit and protect the second electrode 22, which helps to improve the positional stability and reliability of the first electrode 21 and the second electrode 22.

[0054] The first mounting groove 122 can be an annular groove, with an opening at the end opposite to the second electrode 22 to allow the conductive substrate 211 to be inserted into the first mounting groove 122. An clearance notch can be provided at the end of the first mounting groove 122 facing the second electrode 22 to allow multiple needle electrodes 212 to pass through. The size of the clearance notch is smaller than the area of ​​the conductive substrate 211 to prevent the conductive substrate 211 from detaching.

[0055] The second mounting groove 112 can be an annular groove, with an opening at one end facing the first electrode 21 to allow the second electrode 22 to be inserted into the second mounting groove 112. The opening size of the second mounting groove 112 can be smaller than the area of ​​the blocking medium to ensure that the blocking medium is located outside the second mounting groove 112.

[0056] In some exemplary embodiments, such as Figure 1 and Figure 3As shown, one of the first bracket 12 and the second bracket 11 is provided with a guide post 111, and the other is provided with a guide sleeve 121. The guide sleeve 121 is sleeved on the guide post 111 and can move relative to the guide post 111 so that the first bracket 12 and the second bracket 11 are movably connected.

[0057] The cooperation between the guide post 111 and the guide sleeve 121 can guide the relative movement of the first bracket 12 and the second bracket 11, which helps to improve the stability and smoothness of the movement and helps to avoid tilting, shaking, jamming, and other situations.

[0058] In some exemplary embodiments, such as Figure 1 As shown, the air purification device also includes a catalytic structure 3 disposed within the airflow channel. The catalytic structure 3 is configured to work in conjunction with the dielectric barrier corona discharge component 2 to purify the gas flowing through the airflow channel, thereby improving the air purification effect and efficiency.

[0059] Among them, the catalytic structure 3 can be an ozone removal catalytic structure 3. Because when the dielectric barrier corona discharge component 2 is used under atmospheric pressure and air is used as the gaseous raw material, it is easy to generate uncontrollable ozone during discharge. The catalytic structure 3 helps to reduce the ozone concentration in the product to avoid ozone exceeding the standard and causing harm to the human body.

[0060] In some exemplary embodiments, such as Figure 2 As shown, the catalytic structure 3 includes a catalyst layer 32 and a catalytic module 31.

[0061] The catalyst layer 32 is disposed on the surface of the barrier medium 23 layer facing the first electrode 21, that is: the catalyst layer 32 is located on the discharge interface of the dielectric barrier corona discharge assembly 2.

[0062] The catalytic module 31 is located downstream of the dielectric barrier corona discharge assembly 2, and the catalytic module 31 is provided with a vent for gas to pass through to ensure gas flow. The catalytic module 31 includes a carrier and a catalyst supported on the carrier. The catalytic module 31 can be fixed on the second bracket 11 of the mounting frame 1.

[0063] In this way, the catalyst layer 32 at the discharge interface can treat ozone in situ, and the catalytic module 31 can treat ozone downstream, achieving in-situ ozone treatment and removal of long-lasting ozone, effectively reducing the ozone concentration in the products. This fully utilizes the advantages of short-acting hydroxyl radicals generated by discharge—high oxidation potential and rapid bactericidal action—to effectively remove pathogens and pollutants, while also removing long-acting ozone, which is harmful to the human body and has a long half-life, thus achieving effective air purification.

[0064] Of course, the catalytic structure 3 may also include only the catalyst layer 32, or only the catalytic module 31.

[0065] In some embodiments, the thickness of the catalyst layer 32 is in the range of 0.01 mm to 1 mm, such as 0.01 mm, 0.1 mm, 0.2 mm, 0.3 mm, 0.4 mm, 0.5 mm, 0.6 mm, 0.7 mm, 0.8 mm, 0.9 mm, 1.0 mm, etc. Of course, the thickness of the catalyst layer 32 is not limited to the above range and can be adjusted as needed.

[0066] In some embodiments, the carrier is honeycomb-shaped with honeycomb pores for ventilation. This increases the surface area of ​​the carrier, which in turn increases the surface area of ​​the catalyst, allowing the catalyst to fully contact the gas and improving the ozone removal effect. Of course, the carrier is not limited to a honeycomb shape; it can also be a grid-like structure or other structures with ventilation pores.

[0067] In some embodiments, the carrier is a plastic part, which is non-conductive and helps to prevent the electronic products generated by the discharge of the dielectric barrier corona component from being adsorbed on the carrier of the catalytic module 31 and affecting the air purification effect.

[0068] In some exemplary embodiments, the spacing between the first electrode 21 and the second electrode 22 is configured to be adjustable between a first spacing and a second spacing, wherein the first spacing is greater than the second spacing. Based on the second spacing (which is the minimum spacing between the first electrode 21 and the second electrode 22), the first electrode 21 contacts the catalyst layer 32 and the catalytic module 31 blocks the gas flow channel.

[0069] Thus, when the distance between the first electrode 21 and the second electrode 22 is at its minimum, the discharge intensity of the dielectric barrier corona discharge component 2 is high, resulting in a relatively large amount of ozone byproducts. At this time, the gas in the airflow channel can only be discharged through the vent of the catalytic module 31, allowing the gas in the airflow channel to fully contact the catalytic module 31 and receive uniform treatment from the catalytic module 31, which is beneficial for sufficient ozone removal and avoids exceeding the ozone concentration standard.

[0070] In some exemplary embodiments, the catalyst is a noble metal-modified catalyst. The main component of the catalyst may be manganese dioxide, modified with a noble metal (such as Ag).

[0071] Loading the noble metal modified catalyst onto the honeycomb support of the catalytic module 31 can significantly improve the catalyst's resistance to water formation and enhance the dispersion and atom utilization of the noble metal, thereby enhancing catalytic activity, reducing the amount of catalyst used, and ultimately reducing product costs.

[0072] Of course, catalysts are not limited to precious metal-modified catalysts doped with precious metals.

[0073] This application also provides an air handling device, including an air purification device as described in any of the above embodiments, and thus has all the above-mentioned beneficial effects, which will not be repeated here.

[0074] In some exemplary embodiments, the air handling equipment may be an air conditioner, an air purifier, a humidifier, a dehumidifier, etc.

[0075] In some exemplary embodiments, the air handling equipment is provided with an air duct and an air inlet and an air outlet connected to the air duct. The air purification device can be installed at the air inlet, inside the air duct, at the air outlet, or inside the air supply duct of a central air conditioning system, etc.

[0076] This application also provides a control method applied to the air handling equipment as described in the above embodiments. Figure 6 As shown, the control methods include:

[0077] Step S202: Determine the target purification mode;

[0078] Step S204: Control the operating parameters of the medium barrier corona discharge component according to the target purification mode. The operating parameters include at least the discharge intensity parameter.

[0079] The control method provided in this application embodiment can control the operating parameters of the dielectric barrier discharge component according to the determined target purification mode, so as to meet the different needs of different scenarios and improve the user experience.

[0080] In some exemplary embodiments, the method for determining the target purification mode includes at least one of the following:

[0081] The target purification mode is determined based on the environmental pollutant detection results and the overall power consumption information of the machine.

[0082] The target purification mode is determined based on externally input instructions.

[0083] Determining the target purification mode based on environmental pollutant detection results and overall power consumption information is beneficial for achieving automated control of air handling equipment, while taking into account both air treatment effect and overall power consumption.

[0084] The target purification mode is determined based on externally input instructions, allowing users to freely choose and meet their personalized needs. These externally input instructions can be obtained via remote control, control panel, or mobile terminal (such as mobile phone, smartwatch, computer, etc.).

[0085] In some exemplary embodiments, the target purification mode includes a first purification mode, a second purification mode, and a third purification mode. The first purification mode can be called a high-efficiency mode, the second purification mode can be called a fast mode, and the third purification mode can be called a normal mode. The purification efficiency and power consumption decrease sequentially from high-efficiency mode to fast mode to normal mode.

[0086] The target purification mode is determined based on environmental pollutant detection results and overall power consumption information, including:

[0087] Based on the pollutant concentration meeting the first set concentration condition, the target purification mode is determined to be the first purification mode.

[0088] Based on the fact that the pollutant concentration does not meet the first set concentration condition and the power consumption information of the whole machine meets the set low power consumption condition, the target purification mode is determined to be the second purification mode.

[0089] Based on the fact that the pollutant concentration does not meet the first set concentration condition and the power consumption information of the whole machine meets the set high power consumption condition, the target purification mode is determined to be the third purification mode.

[0090] The first set concentration condition can be: the ratio of pollutant concentration to safe concentration threshold is greater than a set value, and the set value is greater than 1, such as but not limited to 2.

[0091] When the pollutant concentration meets the first set concentration condition, it indicates that the concentration of environmental pollutants is seriously exceeding the standard and a purification process needs to be completed efficiently and quickly. Otherwise, it will cause great harm to the human body. Therefore, the target purification mode is determined to be the first purification mode.

[0092] When the pollutant concentration does not meet the first set concentration condition, it indicates that the environmental pollutant concentration is not seriously exceeded and the harm to the human body is not particularly significant. At this time, the target purification mode can be determined based on the overall power consumption. When the overall power consumption meets the set low power consumption condition, it indicates that the overall power consumption is not high, so the target purification mode is determined to be the second purification mode, which can quickly complete the purification process without excessive power consumption. When the overall power consumption meets the set high power consumption condition, it indicates that the overall power consumption is too high, so the target purification mode is determined to be the third purification mode to avoid excessive power consumption.

[0093] In some embodiments, setting low power consumption conditions includes operating the air handling unit in an energy-saving mode. Setting high power consumption conditions includes operating the air handling unit in a non-energy-saving mode.

[0094] In energy-saving mode, the power consumption of the air handling unit is relatively low. In non-energy-saving mode, the power consumption of the air handling unit is relatively high.

[0095] Of course, the power consumption of the whole machine can also be defined by other methods, such as: determining the power consumption within a set time period. The low power consumption range is defined as the power consumption within a set time period is lower than the set value, and the high power consumption range is defined as the power consumption within a set time period is higher than the set value.

[0096] In some embodiments, the target purification mode is determined based on environmental pollutant detection results and overall power consumption information. The control method further includes:

[0097] At set intervals, the process returns to the step of determining the target purification mode based on the environmental pollutant detection results and the overall power consumption information, until the concentration of environmental pollutants is reduced to meet the second set concentration condition.

[0098] The second set concentration condition corresponds to a pollutant concentration lower than the first set concentration condition. The second set concentration condition can be: the pollutant concentration is within a safe concentration range (≤ safe concentration threshold). The setting time is not limited; for example, it can be, but is not limited to, 5 minutes.

[0099] In this way, the air handling equipment can adjust the purification mode in a timely manner according to changes in the concentration of environmental pollutants, so as to balance the purification effect and the power consumption of the whole machine.

[0100] In some exemplary embodiments, the operating parameters of the dielectric barrier corona discharge component 2 are controlled according to the target purification mode, including:

[0101] Based on the target purification mode being the first purification mode, the discharge intensity parameter of the dielectric barrier corona discharge component 2 is adjusted so that the dielectric barrier corona discharge component 2 operates at the first discharge intensity.

[0102] Based on the target purification mode being the second purification mode, the discharge intensity parameter of the dielectric barrier corona discharge component 2 is adjusted so that the dielectric barrier corona discharge component 2 operates at the second discharge intensity.

[0103] Based on the target purification mode being the third purification mode, the discharge intensity parameter of the dielectric barrier corona discharge component 2 is adjusted so that the dielectric barrier corona discharge component 2 operates at the third discharge intensity.

[0104] Among them, the first discharge intensity > the second discharge intensity > the third discharge intensity.

[0105] Thus, the discharge intensity of the dielectric barrier corona discharge component 2 can be divided into three levels, and the corresponding purification modes can also be divided into three levels. The discharge intensity of the first purification mode is greater than that of the second purification mode, which is greater than that of the third purification mode. Therefore, the first purification mode can be called the high-efficiency mode, the second purification mode can be called the fast mode, and the third purification mode can be called the normal mode.

[0106] Of course, the discharge intensity of the dielectric barrier corona discharge component 2 is not limited to three levels, but can also be two, four or more levels. The corresponding purification modes are not limited to three, but can also be two, four or more.

[0107] In some embodiments, the discharge intensity parameters include: the distance between the first electrode 21 and the second electrode 22, and the number of energized needle electrodes 212 of the first electrode 21.

[0108] Adjusting the discharge intensity parameter of the dielectric barrier corona discharge assembly 2 to make the dielectric barrier corona discharge assembly 2 work at the first discharge intensity includes: adjusting the distance between the first electrode 21 and the second electrode 22 to the second distance, and energizing all the multiple needle electrodes 212.

[0109] Adjusting the discharge intensity parameter of the dielectric barrier corona discharge assembly 2 to make the dielectric barrier corona discharge assembly 2 work at the second discharge intensity includes: adjusting the distance between the first electrode 21 and the second electrode 22 to the second distance, and partially energizing the plurality of needle electrodes 212.

[0110] Adjusting the discharge intensity parameter of the dielectric barrier corona discharge assembly 2 to make the dielectric barrier corona discharge assembly 2 operate at a second discharge intensity includes: adjusting the distance between the first electrode 21 and the second electrode 22 to a first distance, and partially energizing the plurality of needle electrodes 212.

[0111] The first spacing is greater than the second spacing.

[0112] The smaller the distance between the first electrode 21 and the second electrode 22, the smaller the discharge gap and the higher the discharge intensity. The more energized the needle electrodes 212, the higher the discharge intensity. Therefore, by controlling the distance between the first electrode 21 and the second electrode 22, and the number of energized needle electrodes 212, the discharge intensity of the dielectric barrier corona discharge assembly 2 can be divided into three levels, or even more. Furthermore, compared to reducing the discharge intensity by lowering the voltage, reducing the number of energized needle electrodes 212 to lower the discharge intensity is beneficial for improving the success rate of excitation discharge.

[0113] Of course, the discharge intensity parameter can also include electrical parameters such as the loading voltage of the dielectric barrier corona discharge component. The discharge intensity can also be adjusted by adjusting the loading voltage and other electrical parameters.

[0114] In some exemplary embodiments, the operating parameters are determined based on the target purification mode according to externally input instructions, and also include the discharge duration.

[0115] According to the operating parameters of the dielectric barrier corona discharge component 2 controlled by the target purification mode, it also includes:

[0116] Based on the target purification mode being the first purification mode, the control medium blocking corona discharge component 2 is shut down after working for a first duration.

[0117] Based on the target purification mode being the second purification mode, the control medium blocking corona discharge component 2 is shut down after working for the second duration.

[0118] Based on the target purification mode being the third purification mode, the control medium blocking corona discharge component 2 is shut down after working for the third time.

[0119] The duration of the first episode is less than the duration of the second episode, which is less than the duration of the third episode.

[0120] For cases where the target purification mode is manually selected, the purification mode ends based on the working time, eliminating the need for manual control by the user and improving the user experience.

[0121] The first duration is unrestricted, for example, it can be, but is not limited to, 5 minutes. The second duration is unrestricted, for example, it can be, but is not limited to, 1 hour. The third duration is unrestricted, for example, it can be, but is not limited to, 2 hours.

[0122] In some exemplary embodiments, the control method includes, before determining the target operating mode:

[0123] Upon receiving the instruction to activate the health function, a mode selection reminder message is sent.

[0124] Received a mode selection instruction based on the mode selection reminder message.

[0125] In other words, when a user wants to purify the air, they can manually select to activate the health function (also known as activating the purification mode). The user will then receive a mode selection reminder, prompting them to choose either manually selecting the target purification mode (manual setting mode) or automatically determining the target purification mode (intelligent mode). When the user selects intelligent mode, the target purification mode is determined based on environmental pollutant detection results and the unit's power consumption information. When the user selects manual setting mode, they will need to further select a first, second, or third purification mode.

[0126] In one embodiment, such as Figure 7 As shown, the control method includes the following steps:

[0127] Step S302: Enable health functions;

[0128] Step S304: Send a mode selection reminder message and determine whether the user has selected smart mode; if yes, proceed to step S306; if no, proceed to step S318.

[0129] Step S306: Determine whether the pollutant concentration exceeds twice the safe concentration threshold; if yes, proceed to step S308; if no, proceed to step S310.

[0130] Step S308: Determine the target purification mode as the high-efficiency mode, perform eight-pin close-to-the-blocking medium 23 discharge (i.e., adjust the distance between the first electrode 21 and the second electrode 22 to the second distance, and energize all eight needle electrodes 212), and proceed to step S316.

[0131] Step S310: Determine whether the power consumption information of the whole machine meets the set low power consumption conditions. If yes, proceed to step S314; if no, proceed to step S312.

[0132] Step S312: Determine the target purification mode as fast mode, perform four-needle close-to-blocking medium 23 discharge (i.e., adjust the distance between the first electrode 21 and the second electrode 22 to the second distance, and energize the four needle electrodes 212), and proceed to step S316.

[0133] Step S314: Determine the target purification mode as normal mode, perform four-needle suspended discharge (i.e., adjust the distance between the first electrode 21 and the second electrode 22 to the first distance, and energize the four needle electrodes 212), and proceed to step S316.

[0134] Step S316: Detect the pollutant concentration every 5 minutes and determine whether the pollutant concentration has decreased to below the safe concentration threshold. If yes, end; otherwise, return to step S306.

[0135] Step S318: Determine the target purification mode based on external instructions;

[0136] Step S320: Determine the target purification mode as the high-efficiency mode according to the external command, execute the eight-pin close-to-the-blocking medium 23 discharge, and end after 5 minutes;

[0137] Step S322: Determine the target purification mode as fast mode according to the external command, perform four-pin close-to-blocking medium 23 discharge, and end after 1 hour;

[0138] Step S324: Determine the target purification mode as normal mode according to external instructions, perform four-needle suspended discharge, and end after 2 hours.

[0139] Experiments have verified that in fast mode, a 99% space sterilization rate can be achieved after 1 hour of operation. In normal mode, a 99% space sterilization rate can be achieved after 2 hours of operation, which is more energy-efficient. With the same power conversion efficiency of the power supply module, the power supply module of the dielectric barrier corona discharge component in this embodiment only requires an input of 8.5V and 1.1W to achieve a 99% sterilization rate in 2 hours; while the power supply module of a conventional dielectric barrier discharge component requires an input of 11.3V and 2.8W to achieve the same 99% sterilization rate in 2 hours. Therefore, compared to a conventional dielectric barrier discharge component, the dielectric barrier corona discharge component is advantageous in reducing the excitation voltage and has an energy-saving effect.

[0140] This application also provides a control device, including a processor and a memory storing a computer program. When the processor executes the computer program, it implements the steps of any of the control methods described in the above embodiments, and thus has all the above-mentioned beneficial effects, which will not be repeated here.

[0141] The processor may be an integrated circuit chip with signal processing capabilities. The aforementioned processor can be a general-purpose processor, including a Central Processing Unit (CPU), a Network Processor (NP), etc.; it can also be a Digital Signal Processor (DSP), an Application-Specific Integrated Circuit (ASIC), an On-Premises Programmable Gate Array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. It can implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of this invention. The general-purpose processor can be a microprocessor or any conventional processor.

[0142] This application also provides a computer-readable storage medium storing a computer program. When the computer program is executed by a processor, it implements the steps of any of the control methods described in the above embodiments, and thus has all the above-mentioned beneficial effects, which will not be repeated here.

[0143] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0144] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0145] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0146] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0147] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0148] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

[0149] In any one or more of the exemplary embodiments described above, the described functionality may be implemented in hardware, software, firmware, or any combination thereof. If implemented in software, the functionality may be stored as one or more instructions or code on or transmitted via a computer-readable medium and executed by a hardware-based processing unit. The computer-readable medium may comprise a computer-readable storage medium corresponding to a tangible medium such as a data storage medium, or a communication medium comprising any medium facilitating the transfer of a computer program from one place to another, for example, according to a communication protocol. In this manner, a computer-readable medium may generally correspond to a non-transitory tangible computer-readable storage medium or a communication medium such as a signal or carrier wave. The data storage medium may be any available medium accessible by one or more computers or one or more processors to retrieve instructions, code, and / or data structures for implementing the techniques described in this disclosure. Computer program products may comprise computer-readable media.

[0150] For example, and not as a limitation, such computer-readable storage media may include RAM, ROM, EEPROM, CD-ROM or other optical disc storage devices, magnetic disk storage devices or other magnetic storage devices, flash memory, or any other medium that can be used to store desired program code in the form of instructions or data structures and is accessible by a computer. Furthermore, 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 media, but rather refer to non-transient tangible storage media. As used herein, disks and optical discs include compact optical discs (CDs), laser discs, optical discs, digital versatile discs (DVDs), floppy disks, or Blu-ray discs, where disks typically reproduce data magnetically, while optical discs use lasers to reproduce data optically. The above combinations should also be included within the scope of computer-readable media.

[0151] For example, instructions can 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. Therefore, the term "processor" as used herein can refer to any of the above-described structures or any other structures suitable for implementing the techniques described herein. Additionally, in some aspects, the functionality described herein can be provided within dedicated hardware and / or software modules configured for encoding and decoding, or incorporated into combined codecs. Furthermore, the techniques can be fully implemented in one or more circuit or logic elements.

[0152] The technical solutions of the embodiments of this disclosure can be implemented in a wide variety of devices or equipment, including wireless mobile phones, integrated circuits (ICs), or a set of ICs (e.g., chipsets). Various components, modules, or units are described in the embodiments of this disclosure to emphasize functional aspects of a device configured to perform the described techniques, but they do not necessarily need to be implemented through different hardware units. Rather, as described above, the various units can be combined in codec hardware units or provided by a collection of interoperable hardware units (including one or more processors as described above) combined with suitable software and / or firmware.

Claims

1. An air purification device, characterized in that, include: Mounting bracket, wherein the mounting bracket is provided with an airflow channel; A dielectric barrier corona discharge assembly is mounted on the mounting bracket. The dielectric barrier corona discharge assembly includes a first electrode and a second electrode disposed opposite to each other, and a barrier dielectric layer located between the first electrode and the second electrode. The dielectric barrier corona discharge assembly is configured to adjust the discharge intensity of the dielectric barrier corona discharge assembly by adjusting the discharge intensity parameter, so as to perform different purification treatment on the gas flowing through the airflow channel. The discharge intensity parameter includes at least one of the following: the distance between the first electrode and the second electrode, and the electrical parameters of the dielectric barrier corona discharge assembly.

2. The air purification device according to claim 1, characterized in that, The first electrode includes a conductive substrate and a plurality of needle electrodes disposed on the conductive substrate, the second electrode is a plate-shaped electrode, and the barrier dielectric layer is fixed on the plate surface of the second electrode facing the first electrode; The electrical parameters include at least one of the following: the number of electrodes energized, and the applied voltage of the dielectric barrier corona discharge assembly.

3. The air purification device according to claim 2, characterized in that, The conductive substrate is circular, and the plurality of needle electrodes are spaced apart along the circumference of the conductive substrate. The second electrode is a circular plate-shaped electrode.

4. The air purification device according to claim 3, characterized in that, The diameter of the barrier medium layer is in the range of 1 mm to 50 mm, and the thickness of the barrier medium layer is in the range of 0.1 mm to 2 mm; The diameter of the needle electrode is in the range of 0.1 mm to 1.0 mm, and the length of the needle electrode is in the range of 1 mm to 50 mm. The diameter of the second electrode is in the range of 1 mm to 50 mm, and the thickness of the second electrode is in the range of 0.1 mm to 2 mm.

5. The air purification device according to any one of claims 1 to 4, characterized in that, The mounting bracket includes a first bracket and a second bracket arranged opposite to each other, and the space between the first bracket and the second bracket forms the airflow channel; the first electrode is mounted on the first bracket, the second electrode is mounted on the second bracket, and the first bracket and the second bracket are movably connected so that the distance between the first electrode and the second electrode is adjustable.

6. The air purification device according to claim 5, characterized in that, The first bracket is provided with a first mounting groove, and the conductive substrate of the first electrode is mounted in the first mounting groove; the second bracket is provided with a second mounting groove, and the second electrode is mounted in the second mounting groove; and / or, One of the first bracket and the second bracket is provided with a guide post, and the other is provided with a guide sleeve. The guide sleeve is fitted onto the guide post and can move relative to the guide post so that the first bracket and the second bracket are movably connected.

7. The air purification device according to any one of claims 1 to 4, characterized in that, It also includes a catalytic structure disposed within the airflow channel, the catalytic structure being configured to work in conjunction with the dielectric barrier corona discharge assembly.

8. The air purification device according to claim 7, characterized in that, The catalytic structure includes at least one of the following: a catalyst layer, a catalytic module; The catalyst layer is disposed on the surface of the barrier medium layer facing the first electrode; The catalytic module is located downstream of the dielectric barrier corona discharge assembly, and the catalytic module is provided with a vent for gas to pass through. The catalytic module includes a support and a catalyst supported on the support.

9. The air purification device according to claim 8, characterized in that, The thickness of the catalyst layer is in the range of 0.01 mm to 1 mm; and / or, the carrier is honeycomb-shaped and the vent holes are honeycomb pores; and / or, the carrier is a plastic part.

10. The air purification device according to claim 8, characterized in that, The spacing between the first electrode and the second electrode is adjustable between a first spacing and a second spacing, wherein the first spacing is greater than the second spacing; based on the spacing between the first electrode and the second electrode being the second spacing, the first electrode contacts the catalyst layer and the catalytic module blocks the gas flow channel; And / or, the catalyst is a noble metal modified catalyst.

11. The air purification device according to any one of claims 1 to 4, characterized in that, The peak voltage of the dielectric barrier corona discharge assembly is in the range of 1kV to 20kV, and the frequency is in the range of 10kHz to 50kHz.

12. An air handling device, characterized in that, Includes the air purification device as described in any one of claims 1 to 11.

13. A control method, characterized in that, The control method, applied to the air handling apparatus as described in claim 12, comprises: Determine the target purification mode; The operating parameters of the dielectric barrier corona discharge component are controlled according to the target purification mode, and the operating parameters include at least the discharge intensity parameter.

14. The control method according to claim 13, characterized in that, The method for determining the target purification mode includes at least one of the following: The target purification mode is determined based on the environmental pollutant detection results and the overall power consumption information of the machine. The target purification mode is determined based on externally input instructions.

15. The control method according to claim 14, characterized in that, The target purification mode includes a first purification mode, a second purification mode, and a third purification mode; determining the target purification mode based on environmental pollutant detection results and overall power consumption information includes: Based on the pollutant concentration meeting the first set concentration condition, the target purification mode is determined to be the first purification mode. Based on the fact that the pollutant concentration does not meet the first set concentration condition and the whole machine power consumption information meets the set low power consumption condition, the target purification mode is determined to be the second purification mode. Based on the fact that the pollutant concentration does not meet the first set concentration condition and the power consumption information of the whole machine meets the set high power consumption condition, the target purification mode is determined to be the third purification mode.

16. The control method according to claim 15, characterized in that, The low power consumption condition includes: the air handling unit operating in energy-saving mode; the high power consumption condition includes: the air handling unit operating in non-energy-saving mode; and / or The control method further includes: Based on the target purification mode determined according to environmental pollutant detection results and overall power consumption information, the control method also includes: At set intervals, the process returns to the step of determining the target purification mode based on environmental pollutant detection results and overall power consumption information, until the concentration of environmental pollutants is reduced to meet the second set concentration condition. Wherein, the pollutant concentration corresponding to the second set concentration condition is lower than the pollutant concentration corresponding to the first set concentration condition.

17. The control method according to any one of claims 13 to 16, characterized in that, The step of controlling the operating parameters of the dielectric barrier corona discharge component according to the target purification mode includes: Based on the target purification mode being the first purification mode, the discharge intensity parameter of the dielectric barrier corona discharge component is adjusted so that the dielectric barrier corona discharge component operates at the first discharge intensity. Based on the target purification mode being the second purification mode, the discharge intensity parameter of the dielectric barrier corona discharge component is adjusted so that the dielectric barrier corona discharge component operates at the second discharge intensity. Based on the target purification mode being the third purification mode, the discharge intensity parameter of the dielectric barrier corona discharge component is adjusted so that the dielectric barrier corona discharge component operates at the third discharge intensity. Wherein, the first discharge intensity > the second discharge intensity > the third discharge intensity.

18. The control method according to claim 17, characterized in that, The discharge intensity parameters include: the distance between the first electrode and the second electrode, and the number of energized needle electrodes of the first electrode; Adjusting the discharge intensity parameter of the dielectric barrier corona discharge assembly to make the dielectric barrier corona discharge assembly work at a first discharge intensity includes: adjusting the distance between the first electrode and the second electrode to a second distance, and energizing all of the plurality of needle electrodes; Adjusting the discharge intensity parameter of the dielectric barrier corona discharge assembly to make the dielectric barrier corona discharge assembly operate at a second discharge intensity includes: adjusting the distance between the first electrode and the second electrode to a second distance, and energizing the plurality of needle electrode portions; Adjusting the discharge intensity parameter of the dielectric barrier corona discharge assembly to make the dielectric barrier corona discharge assembly operate at a second discharge intensity includes: adjusting the distance between the first electrode and the second electrode to a first distance, and energizing the plurality of needle electrode portions; Wherein, the first spacing is greater than the second spacing.

19. The control method according to claim 17, characterized in that, The operating parameters are determined based on the target purification mode according to externally input instructions, and also include the discharge duration. The step of controlling the operating parameters of the dielectric barrier corona discharge component according to the target purification mode further includes: Based on the target purification mode being the first purification mode, the dielectric barrier corona discharge component is controlled to operate for a first duration and then shut down. Based on the target purification mode being the second purification mode, the dielectric barrier corona discharge component is controlled to operate for a second duration and then shut down. Based on the target purification mode being the third purification mode, the dielectric barrier corona discharge component is controlled to operate for a third duration and then shut down. Wherein, the first duration < the second duration < the third duration.

20. A control device, characterized in that, It includes a processor and a memory storing a computer program, wherein the processor executes the computer program to implement the steps of the control method as described in any one of claims 13 to 19.

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