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 visual sterilization effect can be achieved, sterilization substances can make full contact with air, and the sterilization effect can be improved. The purification device comprises a sterilization module which comprises a mounting frame and a discharge assembly, the mounting frame is provided with an airflow channel for airflow to pass through, and the discharge assembly is arranged in the airflow channel; the discharging assembly comprises a discharging electrode and a receiving electrode, the discharging electrode comprises a discharging part, the discharging part comprises a plurality of discharging tips, and the receiving electrode and the discharging part are oppositely arranged at intervals; and the power supply is electrically connected with the discharge assembly and is arranged to load voltage to the discharge assembly, so that the discharge assembly generates streamer discharge to generate sterilization substances.

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, the commonly used sterilization methods for indoor use focus on low-temperature plasma sterilization, such as generating low-temperature plasma through dielectric barrier discharge method or corona discharge method, releasing the generated low-temperature plasma into the air to sterilize the air. However, such methods are usually not directly observable, and it is difficult to perceive the sterilization effect; and due to the influence of the low-temperature plasma generation technology, the generated sterilization substances are difficult to fully contact with the air, reducing the sterilization effect. Summary of the invention

[0003] The technical problem to be solved by the present application is to provide a purification device, an air treatment device and a control method thereof, which can achieve a visual sterilization effect, and the sterilizing substance can fully contact with the air, which is beneficial to improving the sterilization effect.

[0004] To this end, an embodiment of the present application provides a purification device, including: a sterilization module, including a mounting frame and a discharge assembly, the mounting frame is provided with an airflow channel for airflow to pass through, and the discharge assembly is arranged in the airflow channel; the discharge assembly includes a discharge electrode and a receiving electrode, the discharge electrode includes a discharge part, the discharge part includes a plurality of discharge tips, and the receiving electrode and the discharge part are arranged relative to each other; and a power supply, electrically connected to the discharge assembly, configured to load a voltage to the discharge assembly so that the discharge assembly generates streamer discharge to produce sterilization substances.

[0005] In the purification device provided by the embodiment of the present application, the power supply mainly plays the role of power supply, the mounting frame of the sterilization module mainly plays the role of installation, and the discharge component mainly plays the role of generating bactericidal substances by streamer discharge. On the one hand, the mounting frame provides a mounting carrier for the discharge component to ensure the stability and reliability of the discharge component. On the other hand, the mounting frame is provided with an airflow channel for airflow to pass through, so that the outside air can enter the airflow channel and be discharged through the airflow channel. In this way, the contact mode between the bactericidal substances generated by the streamer discharge of the discharge component and the air includes both the spontaneous diffusion of the bactericidal substances to contact the outside air, and the outside air entering the airflow channel to contact the bactericidal substances and carrying the bactericidal substances out of the airflow channel, and further contacting with the outside air, which is conducive to the full contact between the bactericidal substances and the air. In this way, compared with the conventional design in which the bactericidal substances are only diffused outward to achieve sterilization, the bactericidal substances generated by the purification device of this scheme can be fully in contact with the air, which is conducive to improving the sterilization and purification effect.

[0006] In addition, in an embodiment of the present application, the discharge component generates bactericidal substances by generating streamer discharge. Streamer means that in gas discharge, the degree of ionization in the non-uniform electric field discharge space is significantly greater than the ionization generated by electron avalanche. The high ionization causes the discharge process to generate strong light radiation, and linear, branched ionization channels can be observed. If the discharge electrode is asymmetrical, the discharge shape can be further elongated before the voltage rises to the breakdown voltage. This phenomenon is called streamer or streamer. Active substances with chemical properties, such as strong oxidizing substances, can be generated during streamer discharge. Strong oxidizing substances can oxidize and decompose bacteria in the air, thereby playing a bactericidal role. Therefore, streamer discharge can be used in purification and sterilization, and it has a visual effect, which is convenient for users to perceive the sterilization effect.

[0007] Based on the above technical solution, the present application can also be improved as follows.

[0008] In an exemplary embodiment, the power supply is a DC high voltage power supply, an AC high voltage power supply or a pulsed high voltage power supply; and / or, the power supply is configured to load a varying voltage to the discharge component.

[0009] In an exemplary embodiment, the power supply is a pulse square wave power supply.

[0010] In an exemplary embodiment, the distance between the discharge tip and the adjacent receiving electrode is denoted as a millimeter; and the maximum voltage of the pulse square wave power supply is in the range of 0.1a kV to 2a kV.

[0011] In an exemplary embodiment, the distance between the discharge tip and the adjacent receiving electrode is in the range of 1 mm to 100 mm.

[0012] In an exemplary embodiment, the discharge electrode further includes a conductive body, and the discharge portion is disposed on the conductive body.

[0013] In an exemplary embodiment, the conductive body is a circular structure, and the plurality of discharge tips are arranged on the outer periphery of the conductive body along the circumference of the conductive body; the receiving electrode is cylindrical, and the receiving electrode is sleeved on the outside of the discharge electrode and is arranged relative to the discharge electrode at a distance.

[0014] In an exemplary embodiment, the conductive body is a plate-like structure, the discharge electrode includes two discharge parts, the two discharge parts are arranged opposite to each other at the two ends of the conductive body in the width direction, and the multiple discharge tips of the discharge parts are arranged along the length direction of the conductive body; the discharge assembly includes at least two receiving electrodes, and the receiving electrodes are arranged on both sides of the width direction of the conductive body; the two receiving electrodes are arranged relatively spaced from the two discharge parts of the discharge electrode, so that the two discharge parts of the discharge electrode can generate streamer discharge to produce sterilizing substances.

[0015] In an exemplary embodiment, the discharge assembly includes a plurality of discharge electrodes spaced apart along a width direction of the conductive body, and the receiving electrode is disposed between two adjacent discharge electrodes in the width direction of the conductive body.

[0016] In an exemplary embodiment, the discharge tip is in a sawtooth shape, a needle shape, or a wire shape.

[0017] In an exemplary embodiment, the receiving electrode is a solid electrode; or, the receiving electrode is a hollow electrode, and the hollow electrode includes a mesh electrode or two rod-shaped electrodes arranged at intervals; the air flow channel is provided with a plurality of ventilation holes, and at least some of the ventilation holes are arranged corresponding to the hollow electrode; or, an insulating member is also provided between the discharge electrode and the receiving electrode.

[0018] In an exemplary embodiment, the discharge electrode is a plate-shaped electrode, the receiving electrode is a plate-shaped electrode or a mesh electrode, and the discharge electrode and the receiving electrode are perpendicular to each other; or, the discharge electrode is a plate-shaped electrode, and the receiving electrode includes two rod-shaped electrodes, and the two rod-shaped electrodes are separated on both sides of the discharge electrode in the thickness direction; or, the discharge electrode is a plate-shaped electrode, the receiving electrode is a plate-shaped electrode, and the discharge electrode and the receiving electrode are perpendicular to each other, and an insulating member is further provided between the discharge electrode and the receiving electrode.

[0019] In an exemplary embodiment, the discharge electrode is a plate-shaped electrode, and a thickness of the discharge electrode is in a range of 0.1 mm to 30 mm.

[0020] In an exemplary embodiment, the receiving electrode is a plate electrode, and the thickness of the receiving electrode is in the range of 0.1 mm to 60 mm; or, the receiving electrode is a mesh electrode, the wire diameter of the receiving electrode is in the range of 0.1 mm to 0.3 mm, and the mesh number is in the range of 30 mesh to 40 mesh; or, the receiving electrode includes two rod-shaped electrodes, and the diameter of the rod-shaped electrodes is in the range of 0.1 mm to 20 mm.

[0021] 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.

[0022] An embodiment of the present application further provides a control method for the air treatment equipment as described in the above embodiment, the control method comprising: determining a purification mode; and controlling the purification device according to the determined purification mode.

[0023] In an exemplary embodiment, the purification mode includes a first purification mode and a second purification mode; and controlling the purification device according to the determined purification mode includes:

[0024] Based on the determined purification mode being the first purification mode, controlling the power supply to intermittently apply a first voltage U1 to the discharge component;

[0025] Based on the determined purification mode being the second purification mode, controlling the power supply to intermittently apply a second voltage U2 to the discharge component;

[0026] Among them, U2>U1, the duration of a single load of the first voltage U1 of the power supply in the first purification mode is longer than the duration of a single load of the second voltage U2 of the power supply in the second purification mode.

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

[0028] Based on the determined purification mode being the first purification mode, controlling the power supply to intermittently apply a first pulse voltage U3 to the discharge component;

[0029] Based on the determined purification mode being the second purification mode, controlling the power supply to intermittently apply a second pulse voltage U4 to the discharge component;

[0030] Among them, the peak voltage of U4 is greater than the peak voltage of U3, the single-on time of the power supply in the first purification mode is greater than the single-on time of the power supply in the second purification mode, the single-on time in the first purification mode is greater than the pulse period of the first pulse voltage U3, and the single-on time in the second purification mode is greater than the pulse period of the second pulse voltage U4. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 A schematic diagram of the main structure of a sterilization module provided in one embodiment of the present application;

[0032] Figure 2 A schematic diagram of the main structure of a sterilization module provided in one embodiment of the present application;

[0033] Figure 3 for Figure 2 A schematic diagram of the side structure of the sterilization module shown;

[0034] Figure 4 A schematic diagram of the main structure of a sterilization module provided in one embodiment of the present application;

[0035] Figure 5 for Figure 4 The side view structural diagram of the sterilization module shown;

[0036] Figure 6 A schematic diagram of the three-dimensional structure of a sterilization module provided in one embodiment of the present application;

[0037] Figure 7 A schematic diagram of the side structure of a sterilization module provided in one embodiment of the present application;

[0038] Figure 8 A schematic diagram of the side structure of a sterilization module provided in one embodiment of the present application;

[0039] Fig. 9 A schematic diagram of the main structure of a sterilization module provided in one embodiment of the present application;

[0040] Fig.10 A schematic diagram of the main structure of a sterilization module provided in one embodiment of the present application;

[0041] Fig.11 for Fig.10 A schematic diagram of the side structure of the sterilization module shown;

[0042] Fig.12 A schematic diagram of the main structure of a sterilization module provided in one embodiment of the present application;

[0043] Fig.13 for Fig.12 The side view structural diagram of the sterilization module shown;

[0044] Fig.14 A waveform diagram showing the voltage of a power supply of a purification device provided by an embodiment of the present application changing over time in a first purification mode;

[0045] Fig.15 A waveform diagram showing the voltage of a power supply of a purification device provided in an embodiment of the present application changing with time in a second purification mode.

[0046] Attached Figures 1 to 13 The parts represented by the various reference numerals are listed as follows:

[0047] 1 mounting frame, 13 air flow channel, 131 ventilation opening;

[0048] 2 discharge assembly, 21 discharge electrode, 211 conductive body, 212 discharge portion, 2121 discharge tip, 22 receiving electrode, 23 insulating member. DETAILED DESCRIPTION

[0049] 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.

[0050] Dielectric barrier discharge is a local discharge phenomenon that usually occurs in the dielectric between two electrodes. The dielectric layer is usually stacked with electrodes on both sides. Since this discharge is usually located inside the dielectric, its spectrum is mainly in the ultraviolet and blue part of visible light, and the energy is weak, so it is difficult to see directly. Therefore, it is difficult to visualize the low-temperature plasma generated by ordinary dielectric barrier discharge.

[0051] Corona discharge is a low-energy plasma discharge that is usually generated in gases. For example, in a high-voltage electric field, air molecules are ionized to form ions and free electrons. Because the energy released by corona discharge is relatively low, its spectrum is mainly in the ultraviolet and blue parts of visible light, and the energy is weak, so it is difficult to see directly. In general, corona discharge does not spontaneously generate visible light. Therefore, it is difficult to visualize the sterilization by generating low-temperature plasma through corona discharge.

[0052] On the other hand, conventional purification devices generate low-temperature plasma inside the device, which then diffuses outward and is released into the external environment (such as indoor space). The diffusion range of the sterilizing substances is limited and the contact with the air is not sufficient, which affects the sterilization effect.

[0053] In addition, while conventional purification devices produce low-temperature plasma, they also produce a large amount of ozone due to the long-term maintenance of high pressure. Excessive ozone can affect the health of users.

[0054] To this end, an embodiment of the present application provides a purification device that can achieve a good visualization effect, and the generated bactericidal substances can fully contact with the air, while inhibiting the production of ozone.

[0055] The following is a detailed description with reference to the accompanying drawings.

[0056] The present application provides a purification device, including: a sterilization module (such as Figures 1 to 13 shown) and a power supply (not shown).

[0057] The sterilization module includes a mounting frame 1 and a discharge assembly 2. Figure 1 and Figure 2As shown, the mounting frame 1 is provided with an airflow channel 13 for airflow to pass through, and the discharge assembly 2 is arranged in the airflow channel 13. The discharge assembly 2 includes a discharge electrode 21 and a receiving electrode 22. Figure 1 and Figure 3 The discharge electrode 21 includes a discharge portion 212, and the discharge portion 212 includes a plurality of discharge tips 2121, as shown in FIG. Figure 2 The receiving electrode 22 and the discharge portion 212 are arranged opposite to each other and spaced apart from each other.

[0058] The discharge electrode 21 is an excitable component and can be any excitable material. The excitable material can be, but is not limited to, one or more of metal saw teeth, metal tips, and carbon fiber wires. The receiving electrode 22 can be, but is not limited to, one or more of metal perforated plates, metal meshes, metal rods, and metal plates.

[0059] The power supply is electrically connected to the discharge component 2, and is configured to apply voltage to the discharge component 2 so that the discharge component 2 generates streamer discharge to produce sterilizing substances. The power supply mainly serves as a power supply. The power supply can apply a driving voltage to the discharge component 2 so that the discharge component 2 can generate streamer discharge. The power supply can be a high-voltage power supply, and the discharge electrode 21 of the discharge component 2 can be electrically connected to the high-voltage end of the high-voltage power supply, and the receiving electrode 22 of the discharge component 2 can be electrically connected to the low-voltage end or the ground end of the high-voltage power supply. Of course, the connection method between the discharge component 2 and the high-voltage power supply can be changed.

[0060] The sterilization module mainly plays a sterilization role. The mounting frame 1 of the sterilization module mainly plays a mounting role, and the discharge component 2 mainly plays a role in generating a streamer discharge to generate a sterilizing substance. On the one hand, the mounting frame 1 provides a mounting carrier for the discharge component 2 to ensure the stability and reliability of the discharge component 2. On the other hand, the mounting frame 1 is provided with an airflow channel 13 for airflow to pass through, so that the outside air can enter the airflow channel 13 and be discharged through the airflow channel 13. In this way, the contact mode between the sterilizing substance generated by the streamer discharge of the discharge component 2 and the air includes both the spontaneous diffusion of the sterilizing substance to the outside air and the outside air entering the airflow channel 13 to contact the sterilizing substance and carrying the sterilizing substance out of the airflow channel 13, and further contacting with the outside air, which is conducive to the full contact between the sterilizing substance and the air. In this way, compared with the conventional design that only achieves sterilization by the outward diffusion of the sterilizing substance, the sterilizing substance generated by the purification device of this scheme can be in full contact with the air, which is conducive to improving the sterilization and purification effect.

[0061] The mounting frame 1 may also be provided with a corresponding structure to be connected with a corresponding structure of the air conditioner (or other air handling equipment) to ensure that the purification device can be installed on the air conditioner (or other air handling equipment). The connection structure may include a mechanical connection structure, such as but not limited to: a screw connection, a snap connection, etc. for mechanical connection.

[0062] In addition, in the embodiment of the present application, the discharge component 2 generates bactericidal substances by generating streamer discharge. Streamer means that in gas discharge, the degree of ionization in the non-uniform electric field discharge space is significantly greater than the ionization generated by electron avalanche. The high ionization causes the discharge process to produce strong light radiation, and linear, branched ionization channels can be observed. If the discharge electrode is asymmetrical, the discharge shape can be further elongated before the voltage rises to the breakdown voltage. This phenomenon is called streamer or streamer. Active substances with chemical properties, such as strong oxidizing substances, can be generated during streamer discharge. Strong oxidizing substances can oxidize and decompose bacteria in the air, thereby playing a bactericidal role. Therefore, streamer discharge can be used in purification and sterilization, and it has a visual effect, which is convenient for users to perceive the sterilization effect.

[0063] In addition, the discharge portion 212 of the discharge electrode 21 includes a plurality of discharge tips 2121. The discharge tips 2121 cooperate with the receiving electrode 22 to produce uneven discharge and realize the asymmetric design of the discharge component 2, so that the discharge component 2 can produce streamer discharge under the action of high voltage electricity. The discharge tip 2121 can also enhance the discharge intensity, thereby enhancing the degree of ionization of the air, which is conducive to the production of more sterilizing substances. The shape of the discharge tip 2121 can be, but is not limited to, a triangle, a trapezoid, a sawtooth, etc. The multiple discharge tips 2121 of each discharge portion 212 can be arranged at intervals (such as equal intervals), or they can be placed next to each other without intervals.

[0064] In some exemplary embodiments, the power supply is configured to apply a varying voltage to the discharge assembly 2 .

[0065] In this way, the electric field strength formed between the discharge electrode 21 and the receiving electrode 22 will also change, and the high-intensity electric field will not be maintained for a long time. This is beneficial to reducing the residence time of the high-voltage part at the ignition voltage, dispersing the concentration of the strong ionization field, thereby helping to reduce the ignition phenomenon and reduce the ozone concentration. That is, it is possible to inhibit the production of ozone while ensuring the production of bactericidal substances, which is beneficial to avoiding excessive ozone concentrations and adverse effects on user health, and there is no need to set up additional measures or structures for treating ozone.

[0066] In some exemplary embodiments, the power supply may be in various forms, and may be a DC high-voltage power supply, an AC high-voltage power supply, a pulse high-voltage power supply, or other forms of high-voltage power supply.

[0067] By adjusting the voltage value of the power supply and controlling the start and close time, the purification device can achieve a better purification effect.

[0068] In an exemplary embodiment, the power supply is a pulsed square wave power supply, which can generate a pulsed electric field to achieve changes in high voltage electricity, and has a simple structure and is easy to control, which is conducive to reducing production costs.

[0069] In some exemplary embodiments, the distance between the discharge tip 2121 and the adjacent receiving electrode 22 is denoted as a millimeter. Figure 3 The maximum voltage of the pulse square wave power supply is in the range of 0.1a kV (i.e. 0.1×a kV) to 2a kV (i.e. 2×a kV), such as 0.1a kV, 0.2a kV, 0.3a kV, 0.4a kV, 0.5a kV, 0.6a kV, 0.7a kV, 0.8a kV, 0.9akV, 1.0a kV, 1.1a kV, 1.2a kV, 1.3a kV, 1.4a kV, 1.5a kV, 1.6a kV, 1.7a kV, 1.8a kV, 1.9a kV, 2.0a kV, etc.

[0070] In one embodiment, the maximum voltage of the pulsed square wave power supply is in the range of 0.5a kV to 1.5a kV.

[0071] In one embodiment, the maximum voltage of the pulsed square wave power supply is in the range of 0.9a kV to 1.2a kV.

[0072] Setting the maximum voltage of the pulse square wave power supply within the above range can achieve better visualization and purification effects without generating excessive ozone and avoiding sparks.

[0073] Of course, the maximum voltage of the pulse square wave power supply is not limited to the above range and can be adjusted as needed.

[0074] In some exemplary embodiments, Figure 3 As shown, the spacing between the discharge tip 2121 and the adjacent receiving electrode 22 is in the range of 1mm to 100mm, such as 1mm, 2mm, 3mm, 4mm, 5mm, 8mm, 10mm, 20mm, 30mm, 40mm, 50mm, 60mm, 70mm, 80mm, 90mm, 100mm, etc.

[0075] In one embodiment, the distance between the discharge tip 2121 and the adjacent receiving electrode 22 is in the range of 2 mm to 50 mm.

[0076] In one embodiment, the distance between the discharge tip 2121 and the adjacent receiving electrode 22 is in the range of 5 mm to 20 mm.

[0077] By setting the distance between the discharge tip 2121 and the adjacent receiving electrode 22 within the above range, it is possible to facilitate the use and installation of the entire purification device while ensuring the purification effect.

[0078] Of course, the distance between the discharge tip 2121 and the adjacent receiving electrode 22 is not limited to the above range and can be adjusted as needed.

[0079] In some exemplary embodiments, Figure 1 and Figure 2 As shown, the discharge electrode 21 further includes a conductive body 211 , and the discharge portion 212 is disposed on the conductive body 211 .

[0080] In this way, the conductive body 211 can be used as a carrier of multiple discharge tips 2121 of the discharge portion 212, and multiple discharge tips 2121 can be powered on simultaneously by simply connecting the conductive body 211 to a power supply, which also facilitates assembly between the discharge electrode 21 and the mounting frame 1.

[0081] In some exemplary embodiments, Figure 1 , Figure 6 and Fig. 9 As shown, the conductive body 211 is a circular structure. A plurality of discharge tips 2121 are arranged on the outer periphery of the conductive body 211 along the circumference of the conductive body 211. The receiving electrode 22 is cylindrical. The receiving electrode 22 is sleeved outside the discharge electrode 21 and is spaced apart from the discharge electrode 21.

[0082] Therefore, the sterilization module as a whole is generally a cylindrical structure with an air flow channel 13 provided inside.

[0083] Among them, the discharge electrode 21 can be a plate-like structure. The receiving electrode 22 can be a solid electrode or a hollow electrode. A solid electrode means that the receiving electrode 22 itself (the part arranged opposite to the discharge electrode 21) has no hollow structure, but there is no restriction on the structure formed by the receiving electrode 22, for example, the receiving electrode 22 can be a cylindrical solid plate structure. A hollow electrode means that the receiving electrode 22 itself (the part arranged opposite to the discharge electrode 21) has a hollow structure, for example, the receiving electrode 22 can be a cylindrical mesh structure (i.e., a mesh electrode), a cylindrical grid structure, a cylindrical perforated plate structure, or a cylindrical structure composed of two annular rod-like structures (i.e., rod-like electrodes) arranged at intervals.

[0084] In the case where the receiving electrode 22 is a solid electrode, the airflow direction of the airflow channel 13 of the mounting frame 1 can extend along the axial direction of the receiving electrode 22, and the sterilizing substance can be discharged along with the airflow.

[0085] In the case where the receiving electrode 22 is a hollow electrode, the airflow channel 13 is correspondingly provided with a plurality of vents 131, and at least some of the vents 131 correspond to the hollow electrodes. In this way, the airflow direction of the airflow channel 13 of the mounting frame 1 is not limited to the axial extension along the receiving electrode 22, because the hollow part of the hollow electrode can also provide airflow in and out. In this way, the charged particles generated by the discharge of the discharge component 2 can drive the air to move toward the receiving electrode 22 and be discharged from the hollow structure of the receiving electrode 22 under the action of the electric field force, thereby forming ion wind, which can enhance the release speed and efficiency of the sterilizing substance. In other words, the discharge component 2 can also spontaneously form ion wind through discharge, which blows out from all directions, which is conducive to the full contact between the sterilizing substance and the air, and is conducive to improving the purification effect.

[0086] The thickness direction of the discharge electrode 21 may be consistent with the axial direction of the receiving electrode 22. The discharge electrode 21 may be coaxially arranged with the receiving electrode 22. The thickness of the discharge electrode 21 may be smaller than the axial dimension of the receiving electrode 22 to ensure that the multiple discharge tips 2121 of the discharge electrode 21 can fully discharge.

[0087] In some other exemplary embodiments, the conductive body 211 is a plate-like structure, such as Figures 2 to 5 The discharge electrode 21 includes two discharge portions 212 . The two discharge portions 212 are disposed opposite to each other at two ends of the conductive body 211 in the width direction, and a plurality of discharge tips 2121 of the discharge portion 212 are arranged along the length direction of the conductive body 211 .

[0088] like Figure 3 As shown, the discharge assembly 2 includes at least two receiving electrodes 22. Receiving electrodes 22 are provided on both sides of the conductive body 211 in the width direction. The two receiving electrodes 22 are arranged relative to the two discharge parts 212 of the discharge electrode 21 at intervals, so that the two discharge parts 212 of the discharge electrode 21 can generate streamer discharge to produce sterilizing substances.

[0089] In other words, the discharge assembly 2 includes a discharge electrode 21 and at least two receiving electrodes 22. The discharge electrode 21 is a high-voltage electrode, connected to the high-voltage end of the power supply. The receiving electrode 22 is a low-voltage electrode or a grounding electrode, which can be connected to the low-voltage end or the grounding end of the power supply. The discharge electrode 21 includes a conductive body 211 and two discharge portions 212 respectively arranged at both ends of the conductive body 211 in the width direction, and a receiving electrode 22 is arranged opposite to each discharge portion 212. In this way, one discharge electrode 21 can correspond to two receiving electrodes 22, thereby forming two strong electric fields, which is conducive to generating more sterilizing substances, and saves one discharge electrode 21, simplifies the structure of the purification device, and reduces the production cost.

[0090] The multiple discharge tips 2121 of each discharge portion 212 can be arranged at intervals (such as equal intervals) or close together without intervals. The two discharge portions 212 can be symmetrically arranged at both ends of the conductive body 211 or appropriately staggered in the length direction of the conductive body 211.

[0091] The conductive body 211 is a plate-like structure (or sheet-like structure), which can be in a long strip shape (such as a rectangle), and the two discharge portions 212 are arranged at opposite ends of the width direction of the conductive body 211, and face the receiving electrodes 22 arranged on both sides of the width direction of the conductive body 211. Therefore, the discharge tip 2121 of the discharge portion 212 is also arranged to be tapered along the width direction of the conductive body 211. In this way, a conductive sheet can be directly processed and formed to obtain an integrally formed discharge electrode 21. Compared with the solution of inserting or welding a needle-like structure on the plate surface of the plate-like structure to form the discharge tip 2121, this solution has lower processing difficulty and is easy to process and form.

[0092] The width of the conductive body 211 may be greater than the protruding length of the discharge tip 2121 (i.e., the size of the discharge tip 2121 along the width direction of the conductive body 211). In this way, there is a certain distance between the two discharge portions 212 of a discharge electrode 21, and it is not easy to affect each other during discharge to cause the discharge electrode 21 to be broken down and damaged, which is conducive to ensuring the reliability of the use of the discharge electrode 21.

[0093] Among them, the discharge electrode 21 can be a plate-like structure. The receiving electrode 22 can be a solid electrode or a hollow electrode. A solid electrode means that the receiving electrode 22 itself (the part arranged opposite to the discharge electrode 21) has no hollow structure, but there is no restriction on the structure formed by the surrounding of the receiving electrode 22, for example, the receiving electrode 22 can be a solid flat plate structure. A hollow electrode means that the receiving electrode 22 itself (the part arranged opposite to the discharge electrode 21) has a hollow structure, for example, the receiving electrode 22 can be a mesh structure (i.e., a mesh electrode), a grid structure, a perforated plate structure, or two rod-like structures arranged at intervals (i.e., rod-like electrodes).

[0094] When the receiving electrode 22 is a solid electrode, the airflow direction of the airflow channel 13 of the mounting frame 1 can extend along the gap between the discharge electrode 21 and the receiving electrode 22 (or along the width direction of the receiving electrode 22 / the thickness direction of the discharge electrode 21), and the sterilization substance can be discharged with the airflow.

[0095] In the case where the receiving electrode 22 is a hollow electrode, the airflow channel 13 is correspondingly provided with a plurality of vents 131, and at least some of the vents 131 correspond to the hollow electrodes. In this way, the airflow direction of the airflow channel 13 of the mounting frame 1 is not limited to extending along the gap between the discharge electrode 21 and the receiving electrode 22, because the hollow part of the hollow electrode can also provide airflow in and out. In this way, the charged particles generated by the discharge of the discharge component 2 can drive the air to move toward the receiving electrode 22 and be discharged from the hollow structure of the receiving electrode 22 under the action of the electric field force, thereby forming ion wind, which can enhance the release speed and efficiency of the sterilizing substance. In other words, the discharge component 2 can also spontaneously form ion wind through discharge, which blows outward from all directions, which is conducive to the full contact between the sterilizing substance and the air, and is conducive to improving the purification effect.

[0096] The thickness direction of the discharge electrode 21 may be consistent with the width direction of the receiving electrode 22. The discharge electrode 21 may be completely or partially opposite to the receiving electrode 22. The thickness of the discharge electrode 21 is less than or equal to the width of the receiving electrode 22, and the length of the receiving electrode 22 is greater than or equal to the length of the discharge electrode 21, so as to ensure that the multiple discharge tips 2121 of the discharge electrode 21 can fully discharge.

[0097] In some embodiments, the discharge electrode 21 is a plate-like structure, and the receiving electrode 22 is a plate-like structure or a mesh-like structure. The width direction of the conductive body 211 is perpendicular to the thickness direction of the receiving electrode 22 .

[0098] In other words, the discharge electrode 21 and the receiving electrode 22 are perpendicular to each other. In this way, the arrangement of the discharge electrode 21 and the receiving electrode 22 is relatively regular, which is convenient for assembly and fixing on the mounting frame 1.

[0099] In some embodiments, Figure 6 As shown, the discharge assembly 2 includes a plurality of discharge electrodes 21 , such as two, three, or even more discharge electrodes 21 , which are arranged at intervals along the thickness direction of the conductive body 211 and located between the two receiving electrodes 22 .

[0100] In other words, in the thickness direction of the conductive body 211: the discharge component 2 can include multiple discharge electrodes 21, and the two receiving electrodes 22 can be used in conjunction with the multiple discharge electrodes 21. Since each discharge electrode 21 has two discharge parts 212, the sterilization module has more discharge points and can produce more sterilization substances, which is beneficial to improving the purification effect of the purification device without increasing the volume of the purification device.

[0101] The thickness direction of the conductive body 211 may be consistent with the thickness direction of the purification device. In this way, the solution is equivalent to achieving the effect of array arrangement of the sterilization modules in the thickness direction of the purification device without increasing the volume of the purification device. Of course, multiple sterilization modules may also be arranged in an array in the thickness direction of the purification device to achieve the effect of array arrangement of the sterilization modules in the thickness direction of the purification device.

[0102] The airflow direction of the airflow channel 13 may be consistent with the thickness direction of the purification device.

[0103] In one embodiment, in the thickness direction of the conductive body 211 , the plurality of discharge electrodes 21 of the discharge assembly 2 are arranged in parallel and at equal intervals.

[0104] In some embodiments, Figure 4 and Figure 5 As shown, the discharge assembly 2 includes a plurality of discharge electrodes 21 spaced apart along the width direction of the conductive body 211 , and a receiving electrode 22 is disposed between two adjacent discharge electrodes 21 in the width direction of the conductive body 211 .

[0105] In other words, in the width direction of the conductive body 211: the discharge assembly 2 may include multiple discharge electrodes 21 (of course, it may also include only one discharge electrode 21), and each discharge electrode 21 is still used in conjunction with two receiving electrodes 22. Since each discharge electrode 21 has two discharge portions 212, the sterilization module has more discharge points and can produce more sterilizing substances, which is beneficial to improving the sterilization effect of the purification device. The width of the mounting frame 1 is increased accordingly so that more discharge electrodes 21 and receiving electrodes 22 can be accommodated in the airflow channel 13.

[0106] In the width direction of the conductive body 211, two adjacent discharge electrodes 21 may share one receiving electrode 22, which is conducive to reducing the number of receiving electrodes 22, thereby simplifying the structure of the purification device and reducing the cost of the purification device. Of course, in the width direction of the conductive body 211, two adjacent discharge electrodes 21 may not share one receiving electrode 22.

[0107] The width direction of the conductive body 211 may be consistent with the width direction of the purification device. In this way, the solution is equivalent to achieving the effect of array arrangement of the sterilization modules in the width direction of the purification device. Of course, the effect of array arrangement of the sterilization modules in the width direction of the purification device can also be achieved by arranging multiple sterilization modules in an array in the width direction of the purification device.

[0108] In one embodiment, in the width direction of the conductive body 211 , the plurality of discharge electrodes 21 of the discharge assembly 2 are arranged in parallel and at equal intervals.

[0109] In some exemplary embodiments, an insulating member 23 is further provided between the discharge electrode 21 and the receiving electrode 22 .

[0110] In this way, the medium between the discharge electrode 21 and the receiving electrode 22 includes not only air but also an insulating member 23, that is, there are at least two layers of dielectrics, forming a multi-layer dielectric barrier discharge structure, which can enhance the degree of ionization, thereby facilitating the production of more active substances, further improving the purification efficiency, and inhibiting the production of ozone.

[0111] The material of the insulating member 23 is a dielectric material, a material with high resistivity and high dielectric constant, including but not limited to polytetrafluoroethylene, epoxy resin, quartz, glass, alumina and the like.

[0112] The thickness of the insulating member 23 may be, but is not limited to, in the range of 0.1 mm to 10 mm, such as 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, 2 mm, 3 mm, 5 mm, 8 mm, 10 mm, etc., and may be further set in the range of 0.1 mm to 3 mm.

[0113] The insulating member 23 may be directly disposed on the receiving electrode 22 to form an insulating layer, so that the discharge electrode 21 and the receiving electrode 22 form a double-layer dielectric barrier discharge structure.

[0114] The insulating member 23 may also be disposed between the discharge electrode 21 and the receiving electrode 22 and spaced apart from both the discharge electrode 21 and the receiving electrode 22 , so that the discharge electrode 21 and the receiving electrode 22 form a three-layer dielectric (air layer+insulating layer+air layer) barrier discharge structure.

[0115] In some exemplary embodiments, the discharge electrode 21 is a plate-like structure, that is, a plate-like electrode, such as a flat plate electrode, such as Figures 2 to 5 The thickness of the discharge electrode 21 may be in the range of, but not limited to, 0.1 mm to 30 mm, such as 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, 2 mm, 3 mm, 5 mm, 8 mm, 10 mm, 12 mm, 15 mm, 18 mm, 20 mm, 22 mm, 25 mm, 28 mm, 30 mm, etc.

[0116] In one embodiment, the thickness of the discharge electrode 21 is in the range of 0.2 mm to 10 mm.

[0117] In one embodiment, the thickness of the discharge electrode 21 is in the range of 0.5 mm to 1 mm.

[0118] In some exemplary embodiments, the receiving electrode 22 is a plate-shaped structure, that is, a plate-shaped electrode, such as a flat plate electrode. Figure 3 , Figure 5 , Fig.11 and Fig.13 As shown. The flat electrode can also be used as a dust collecting electrode to achieve the function of removing particles. The thickness of the receiving electrode 22 can be in the range of, but not limited to, 0.1 mm to 60 mm, such as 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, 2 mm, 3 mm, 5 mm, 8 mm, 10 mm, 15 mm, 20 mm, 25 mm, 30 mm, 35 mm, 40 mm, 45 mm, 50 mm, 55 mm, 60 mm, etc.

[0119] In one embodiment, the thickness of the receiving pole 22 is in the range of 0.2 mm to 10 mm.

[0120] In one embodiment, the thickness of the receiving pole 22 is in the range of 0.5 mm to 5 mm.

[0121] In some exemplary embodiments, the receiving electrode 22 is a mesh structure, i.e., a mesh electrode (not shown in the figure). The wire diameter of the receiving electrode 22 can be in the range of, but not limited to, 0.1 mm to 0.3 mm, such as 0.1 mm, 0.2 mm, 0.3 mm, etc. The mesh number of the receiving electrode 22 can be in the range of, but not limited to, 30 mesh to 40 mesh, such as 30 mesh, 32 mesh, 34 mesh, 35 mesh, 36 mesh, 38 mesh, 40 mesh, etc.

[0122] In some exemplary embodiments, the receiving electrode 22 includes two rod-shaped electrodes, such as Figure 7 and Figure 8 The diameter of the rod-shaped electrode may be in the range of, but not limited to, 0.1 mm to 20 mm, such as 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, 2 mm, 3 mm, 5 mm, 8 mm, 10 mm, 15 mm, 20 mm, etc.

[0123] In one embodiment, the diameter d of the rod-shaped electrode is in the range of 0.5 mm to 5 mm.

[0124] By limiting the diameter of the rod-shaped electrode to the above range, a better potential difference can be formed, thereby achieving a better ion acceleration effect.

[0125] The length direction of the rod-shaped electrode may be consistent with the length direction of the discharge electrode 21 , that is, the rod-shaped electrode may be arranged parallel to and spaced from the discharge electrode 21 .

[0126] In some exemplary embodiments, there are multiple discharge components 2, and the multiple discharge components 2 are spaced apart along the length direction of the conductive body 211 to achieve an array arrangement in the length direction, which can increase the amount of active substances produced and help improve the purification effect.

[0127] In other words, in the embodiments of the present application, the sterilization module has various structural forms, and the structural parameters can also be reasonably designed according to needs.

[0128] In one embodiment, Figure 1 As shown, the discharge electrode 21 further includes a conductive body 211, and a discharge portion 212 is disposed on the conductive body 211. The conductive body 211 is a circular structure, and a plurality of discharge tips 2121 are arranged on the outer periphery of the conductive body 211 along the circumference of the conductive body 211. The receiving electrode 22 is cylindrical, and the receiving electrode 22 is sleeved outside the discharge electrode 21 and is disposed relatively spaced from the discharge electrode 21.

[0129] The discharge tip 2121 is in a sawtooth, needle or wire shape.

[0130] In one example, if Figure 1 As shown, the receiving electrode 22 is a solid electrode, specifically a cylindrical solid plate electrode.

[0131] In another example, Fig. 9 As shown, the receiving electrode 22 is a solid electrode, specifically a cylindrical solid plate electrode, and the receiving electrode 22 is covered with an insulating medium layer.

[0132] In another example, Figure 6 As shown, the receiving electrode 22 is a hollow electrode, which can be a cylindrical mesh electrode or two rod-shaped electrodes arranged at intervals. Accordingly, the air flow channel 13 is provided with a plurality of vents 131, and at least some of the vents 131 are arranged corresponding to the hollow electrodes.

[0133] In another embodiment, Figure 2 and Figure 3 As shown, the conductive body 211 is a plate-like structure, and the discharge electrode 21 includes two discharge portions 212, which are arranged opposite to each other at two ends of the width direction of the conductive body 211. A plurality of discharge tips 2121 of the discharge portion 212 are arranged along the length direction of the conductive body 211.

[0134] The discharge assembly 2 includes at least two receiving electrodes 22, and receiving electrodes 22 are provided on both sides of the conductive body 211 in the width direction. The two receiving electrodes 22 are arranged relative to the two discharge parts 212 of the discharge electrode 21, so that the two discharge parts 212 of the discharge electrode 21 can generate streamer discharge to produce sterilizing substances.

[0135] In one example, the receiving electrode 22 is a solid electrode, specifically a flat solid plate electrode, such as Figure 2 and Figure 3 shown.

[0136] Furthermore, the discharge assembly 2 includes a plurality of discharge electrodes 21 spaced apart along the width direction of the conductive body 211, and a receiving electrode 22 is disposed between two adjacent discharge electrodes 21 in the width direction of the conductive body 211. Figure 4 and Figure 5 shown.

[0137] In another example, the receiving electrode 22 is a solid electrode, specifically a flat solid plate electrode, and the receiving electrode 22 is covered with an insulating medium layer, such as Fig.10 and Fig.11 shown.

[0138] Furthermore, the discharge assembly 2 includes a plurality of discharge electrodes 21 spaced apart along the width direction of the conductive body 211, and a receiving electrode 22 is disposed between two adjacent discharge electrodes 21 in the width direction of the conductive body 211. Fig.12 and Fig.13 shown.

[0139] In another example, the receiving electrode 22 is a hollow electrode, which may be a flat mesh electrode or include two rod-shaped electrodes arranged at intervals, such as Figure 7 Correspondingly, the air flow channel 13 is provided with a plurality of vents 131, and at least some of the vents 131 are provided corresponding to the hollow electrodes.

[0140] Furthermore, the discharge assembly 2 includes a plurality of discharge electrodes 21 spaced apart along the width direction of the conductive body 211, such as Figure 8 As shown, a receiving electrode 22 is disposed between two adjacent discharge electrodes 21 in the width direction of the conductive body 211 .

[0141] 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.

[0142] The air treatment equipment may be, but is not limited to, an air conditioner, an air purifier, a humidifier or other air treatment equipment.

[0143] The present application also provides a control method for the air treatment equipment in the above embodiment. The control method includes:

[0144] Determine the purification mode;

[0145] The purification device is controlled according to the determined purification mode.

[0146] 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.).

[0147] 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.

[0148] In some exemplary embodiments, the purification mode includes a first purification mode and a second purification mode. The power supply may be a pulse square wave power supply.

[0149] Controlling the purification device according to the determined purification mode includes:

[0150] Based on the determined purification mode being the first purification mode, controlling the power supply to intermittently apply the first voltage U1 to the discharge component 2;

[0151] Based on the determined purification mode being the second purification mode, controlling the power supply to intermittently apply the second voltage U2 to the discharge component 2;

[0152] Among them, U2>U1, the duration of the single loading of the first voltage U1 by the power supply in the first purification mode is longer than the duration of the single loading of the second voltage U2 by the power supply in the second purification mode.

[0153] In other words, during the operation of the purification device, the power supply is not continuously turned on, but is turned on intermittently, that is, it is turned on for a period of time and then turned off for a period of time, then turned on again for a period of time and then turned off for a period of time, and then turned on again, and so on.

[0154] Specifically, when the determined purification mode is the first purification mode, the power supply is turned on with the first voltage U1 for a time period of T1 and then turned on again after a time period of T2. The waveform of the voltage changing with time is as follows: Fig.14 When the determined purification mode is the second purification mode, the power supply is turned on with the second voltage U2 for T3 time, then stopped for T4 time, and then turned on again. The waveform of the voltage changing with time is shown in FIG. Fig.15 As shown. Among them, U2>U1, T3<T1. The relative size of T1 and T2 is not limited, the relative size of T3 and T4 is not limited, and the relative size of T2 and T4 is not limited. The size of T1 is related to the indoor purification area and the internal area of ​​the machine.

[0155] The first purification mode can be called the normal purification mode. In the normal purification mode, the first voltage U1 loaded by the power supply to the discharge component 2 is relatively low and is a safer voltage. Running at the first voltage U1, a three-dimensional purification electric field can be continuously created (in the embodiment of the present application, the discharge component 2 can realize body discharge, thereby generating a three-dimensional purification electric field, which can also be called a 3D purification electric field) to purify the indoor environment. By controlling the size of U1, the intensity of the 3D purification electric field can be controlled, and the ozone concentration can be controlled.

[0156] The second purification mode can be called a high-efficiency purification mode. In the high-efficiency purification mode, the second voltage U2 applied by the power supply to the discharge component 2 is relatively high. By increasing the start-up voltage, the purification electric field strength can be increased, and the purification ability of the three-dimensional purification electric field can be enhanced. A better purification effect can be achieved by running for a short time, thereby achieving the purpose of energy saving and high efficiency.

[0157] The distance between the discharge tip 2121 and the adjacent receiving electrode 22 is denoted as a millimeter, the first voltage U1 can be in the range of 0.1a kV to 1a kV, and the second voltage U2 can be in the range of 1a kV to 2a kV. For example, the first voltage U1 is in the range of 0.5a kV to 1a kV, and the second voltage U2 is in the range of 1a kV to 1.5a kV. For example, the first voltage U1 is in the range of 0.9a kV to 1a kV, and the second voltage U2 is in the range of 1a kV to 1.2a kV.

[0158] The purification mode can be exited when an exit command is received, at a scheduled time, or when the detected bacteria concentration is less than a preset value.

[0159] In an exemplary embodiment, the purification mode includes a first purification mode and a second purification mode, and the power supply is a pulse power supply, such as a pulse square wave power supply.

[0160] Controlling the purification device according to the determined purification mode includes:

[0161] Based on the determined purification mode being the first purification mode, controlling the power supply to intermittently apply the first pulse voltage U3 to the discharge component;

[0162] Based on the determined purification mode being the second purification mode, controlling the power supply to intermittently apply the second pulse voltage U4 to the discharge component;

[0163] Among them, the peak voltage of U4 is greater than the peak voltage of U3, the single-on time length of the power supply in the first purification mode is greater than the single-on time length of the power supply in the second purification mode, the single-on time length in the first purification mode is greater than the pulse period of the first pulse voltage U3, and the single-on time length in the second purification mode is greater than the pulse period of the second pulse voltage U4. Specifically, when the determined purification mode is the first purification mode, the power supply is turned on with the first pulse voltage U3 for T5 time and then stopped for T6 time before being turned on again. The waveform diagram of the voltage changing with time during single-on can be as follows: Fig.14 When the determined purification mode is the second purification mode, the power supply is turned on with the second voltage U4 for T7 time, then stopped for T8 time, and then turned on again. The waveform of the voltage changing with time during a single start can be as shown in FIG. Fig.15 As shown, the peak voltage of U4 is greater than the peak voltage of U3, and T5 is greater than T7.

[0164] The first purification mode can be called the normal purification mode. In the normal purification mode, the peak voltage of the first pulse voltage U3 loaded by the power supply to the discharge component 2 is relatively low, which is a safer voltage. Running with the first pulse voltage U3, a three-dimensional purification electric field can be continuously created to purify the indoor environment. By controlling the size of U3, the intensity of the 3D purification electric field can be controlled, and the ozone concentration can be controlled.

[0165] The second purification mode can be called a high-efficiency purification mode. In the high-efficiency purification mode, the peak voltage of the second pulse voltage U4 applied by the power supply to the discharge component 2 is relatively high. By increasing the start-up voltage, the purification electric field strength can be increased, and the purification ability of the three-dimensional purification electric field can be enhanced. A better purification effect can be achieved by running for a short time, thereby achieving the purpose of energy saving and high efficiency.

[0166] The pulse period of the first pulse voltage U3 and the pulse period of the second pulse voltage U4 may be equal or unequal. The single on time of the power supply in the first purification mode may include multiple pulse periods of the first pulse voltage U3, and the single on time of the power supply in the second purification mode may include multiple pulse periods of the second pulse voltage U4.

[0167] The distance between the discharge tip 2121 and the adjacent receiving electrode 22 is denoted as a millimeter, the peak voltage of the first pulse voltage U3 can be in the range of 0.1a kV to 1a kV, and the peak voltage of the second pulse voltage U4 can be in the range of 1a kV to 2a kV. For example, the peak voltage of the first pulse voltage U3 is in the range of 0.5a kV to 1a kV, and the peak voltage of the second pulse voltage U4 can be in the range of 1a kV to 1.5a kV. For example, the peak voltage of the first pulse voltage U3 is in the range of 0.9a kV to 1a kV, and the peak voltage of the second pulse voltage U4 can be in the range of 1a kV to 1.2a kV.

[0168] To sum up, the control method provided in the embodiment of the present application utilizes the principle of streamer energy to construct a visual purification system. By controlling the voltage and the on / off time, two different purification modes can be achieved, which can be freely switched according to user needs and usage scenarios.

[0169] An embodiment of the present application also provides a control device, including a processor and a memory storing a computer program. When the processor executes the computer program, the steps of the control method in any of the above embodiments are implemented, and thus all the above-mentioned beneficial effects are achieved, which will not be repeated here.

[0170] 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.

[0171] The embodiment of the present application also provides an air treatment device, including the above-mentioned control device, and thus has all the above-mentioned beneficial effects, which will not be repeated here.

[0172] 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.

[0173] 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.

[0174] 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.

[0175] 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.

[0176] 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.

[0177] 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.

[0178] 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.

[0179] 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.

[0180] 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.

[0181] 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: The sterilization module comprises a mounting frame and a discharge assembly, wherein the mounting frame is provided with an airflow channel for airflow to pass through, and the discharge assembly is arranged in the airflow channel; the discharge assembly comprises a discharge electrode and a receiving electrode, the discharge electrode comprises a discharge portion, the discharge portion comprises a plurality of discharge tips, and the receiving electrode is arranged with a relative spacing from the discharge portion; and The power supply is electrically connected to the discharge component and is configured to apply voltage to the discharge component so that the discharge component generates streamer discharge to produce sterilizing substances.

2. The purification device according to claim 1, characterized in that: The power supply is a DC high voltage power supply or an AC high voltage power supply; and / or The power supply is configured to apply a varying voltage to the discharge component.

3. The purification device according to claim 1, characterized in that: The power supply is a pulse square wave power supply.

4. The purification device according to claim 3, characterized in that: The distance between the discharge tip and the adjacent receiving electrode is denoted as a millimeter; The maximum voltage of the pulse square wave power supply is in the range of 0.1a kV to 2a kV.

5. The purification device according to any one of claims 1 to 4, characterized in that: The distance between the discharge tip and the adjacent receiving electrode is in the range of 1 mm to 100 mm.

6. The purification device according to any one of claims 1 to 4, characterized in that: The discharge electrode further includes a conductive body, and the discharge portion is arranged on the conductive body.

7. The purification device according to claim 6, characterized in that: The conductive body is a circular structure, and the plurality of discharge tips are arranged on the outer periphery of the conductive body along the circumference of the conductive body; the receiving electrode is cylindrical, and the receiving electrode is sleeved outside the discharge electrode and is arranged relative to the discharge electrode at a distance.

8. The purification device according to claim 6, characterized in that: The conductive body is a plate-shaped structure, the discharge electrode comprises two discharge parts, the two discharge parts are arranged opposite to each other at two ends of the width direction of the conductive body, and the plurality of discharge tips of the discharge parts are arranged along the length direction of the conductive body; The discharge assembly includes at least two receiving electrodes, and the receiving electrodes are arranged on both sides of the conductive body in the width direction; the two receiving electrodes are arranged relatively spaced apart from the two discharge parts of the discharge electrode, so that the two discharge parts of the discharge electrode can generate streamer discharge to produce sterilizing substances.

9. The purification device according to claim 8, characterized in that: The discharge assembly includes a plurality of discharge electrodes spaced apart along the width direction of the conductive body, and the receiving electrode is disposed between two adjacent discharge electrodes in the width direction of the conductive body.

10. The purification device according to any one of claims 1 to 4, characterized in that: The discharge tip is in the shape of a sawtooth, needle or thread; The receiving electrode is a solid electrode; or, the receiving electrode is a hollow electrode, and the hollow electrode includes a mesh electrode or two rod-shaped electrodes arranged at intervals; the air flow channel is provided with a plurality of ventilation holes, and at least some of the ventilation holes are arranged corresponding to the hollow electrode.

11. The purification device according to any one of claims 1 to 4, characterized in that: An insulating member is also provided between the discharge electrode and the receiving electrode.

12. The purification device according to any one of claims 1 to 4, characterized in that: The discharge electrode is a plate electrode, the receiving electrode is a plate electrode or a mesh electrode, and the discharge electrode and the receiving electrode are perpendicular to each other; or The discharge electrode is a plate electrode, and the receiving electrode includes two rod-shaped electrodes, and the two rod-shaped electrodes are separated on both sides of the discharge electrode in the thickness direction; or The discharge electrode is a plate-shaped electrode, the receiving electrode is a plate-shaped electrode, and the discharge electrode and the receiving electrode are perpendicular to each other. An insulating member is also provided between the discharge electrode and the receiving electrode.

13. The purification device according to any one of claims 1 to 4, characterized in that: The discharge electrode is a plate-shaped electrode, and the thickness of the discharge electrode is in the range of 0.1 mm to 30 mm; wherein: The receiving electrode is a plate-shaped electrode, and the thickness of the receiving electrode is in the range of 0.1 mm to 60 mm; or The receiving electrode is a mesh electrode, the wire diameter of the receiving electrode is in the range of 0.1 mm to 0.3 mm, and the mesh number is in the range of 30 meshes to 40 meshes; or The receiving electrode includes two rod-shaped electrodes, and the diameter of the rod-shaped electrodes is in the range of 0.1 mm to 20 mm.

14. An air treatment device, characterized in that: Comprising the purification device as claimed in any one of claims 1 to 13.

15. A control method for the air treatment device according to claim 14, characterized in that: The control method comprises: Determine the purification mode; The purification device is controlled according to the determined purification mode.

16. The control method according to claim 15, characterized in that: The purification mode includes a first purification mode and a second purification mode; and controlling the purification device according to the determined purification mode includes: Based on the determined purification mode being the first purification mode, controlling the power supply to intermittently apply a first voltage U1 to the discharge component; Based on the determined purification mode being the second purification mode, controlling the power supply to intermittently apply a second voltage U2 to the discharge component; Among them, U2>U1, the duration of a single load of the first voltage U1 of the power supply in the first purification mode is longer than the duration of a single load of the second voltage U2 of the power supply in the second purification mode.

17. The control method according to claim 15, characterized in that: The purification mode includes a first purification mode and a second purification mode; and controlling the purification device according to the determined purification mode includes: Based on the determined purification mode being the first purification mode, controlling the power supply to intermittently apply a first pulse voltage U3 to the discharge component; Based on the determined purification mode being the second purification mode, controlling the power supply to intermittently apply a second pulse voltage U4 to the discharge component; Among them, the peak voltage of U4 is greater than the peak voltage of U3, the single-on time of the power supply in the first purification mode is greater than the single-on time of the power supply in the second purification mode, the single-on time in the first purification mode is greater than the pulse period of the first pulse voltage U3, and the single-on time in the second purification mode is greater than the pulse period of the second pulse voltage U4.

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