Air purifier and air purification method

Abstract

The embodiment of the present invention provides an air purifier and an air purification method, the air purifier includes: a housing, a filter, an electronic filter for purifying air, a high-voltage generator, and a fan; a plurality of guide plates are arranged on the filter; the electronic filter includes: a cylindrical electrode and an ion generator, the ion generator includes: an electrode column and an electrode belt arranged on the electrode column; the high-voltage generator is electrically connected to the electrode column. In the embodiment of the present invention, the air flowing into the air purifier is guided by the guide plate arranged on the filter, and the electrode column in the cylindrical electrode is powered to discharge the electrode belt on the electrode column to purify the air, so that the air can flow in the cylindrical electrode in a vortex manner, reducing the turbulence formed by the mutual disturbance of the gases and reducing the wind noise; at the same time, the gas will reduce the disturbance, which is beneficial to the purification of the air and improve the air purification efficiency of the air purifier.

Description

Technical Field

[0001] The embodiments of the present invention relate to the technical field of air purification, and in particular to an air purifier and an air purification method. Background Art

[0002] As the current air pollution situation becomes increasingly serious and residents have higher and higher requirements for the quality of indoor air environment, air purifiers have gradually become a must-have household appliance for residents.

[0003] Outside air flows into the air purifier, is purified inside the purifier, and then is discharged, thereby improving the air quality. During the use of existing air purifiers, the airflows entering the air purifiers disturb each other to form turbulence. This turbulence phenomenon causes the air purifier to generate large wind noise when working, affecting the user experience. At the same time, the turbulence of the airflow also reduces the effect of air purification, resulting in low air purification efficiency of the purifier. Summary of the invention

[0004] The embodiments of the present invention provide an air purifier and an air purification method, which solve the problems of large wind noise and low air purification efficiency during operation of the existing air purifier.

[0005] According to a first aspect of an embodiment of the present invention, there is provided an air purifier, comprising: a housing, a filter, an electronic filter for purifying air, a high voltage generator, and a fan;

[0006] The top of the shell is provided with an air inlet, and the bottom of the shell is provided with an air outlet;

[0007] The filter screen is arranged at the air inlet, and a plurality of guide plates are arranged on the filter screen, and the guide plates are used to guide the air flowing into the air inlet;

[0008] The electronic filter is located inside the housing and comprises: a cylindrical electrode and an ion generator located inside the cylindrical electrode, wherein the ion generator comprises: an electrode column and an electrode belt arranged on the electrode column;

[0009] The high voltage generator is electrically connected to the electrode column;

[0010] The fan is used to drive air to flow from the air inlet to the air outlet;

[0011] The air flows in from the air inlet, is guided by the guide plate, and flows in the cylindrical electrode in a vortex manner. The high-voltage generator supplies power to the electrode column, so that the electrode belt discharges to purify the air.

[0012] Optionally, the filter screen comprises: an annular shell and a filter screen body;

[0013] The filter body and the plurality of guide plates are arranged inside the annular shell;

[0014] The guide plate is bent into an arc shape, and a first inclination angle is formed between the guide plate and a horizontal plane.

[0015] Optionally, the cylindrical electrode is formed by winding a corrugated plate in a spiral direction, the corrugated plate is provided with corrugations, the corrugations are parallel to the extension direction of the corrugated plate, and the corrugations are used to guide the air flowing into the cylindrical electrode;

[0016] The corrugations have a second inclination angle with the horizontal plane.

[0017] Optionally, an electrode belt is provided on the electrode column, and the electrode belt is distributed on the electrode column along a spiral direction;

[0018] or,

[0019] A plurality of electrode belts are arranged on the electrode column, and each electrode belt is distributed on the electrode column along a radial direction.

[0020] Optionally, the electrode belt comprises: a base belt and a plurality of tip electrodes arranged on the base belt;

[0021] The connecting line of adjacent tip electrodes is a spiral line and has a second inclination angle with the horizontal plane.

[0022] Optionally, the bending direction of the guide plate is consistent with the spiral direction of the corrugations of the cylindrical electrode and the spiral direction of the connecting line of adjacent tip electrodes.

[0023] Optionally, the first inclination angle is any angle between 45° and 87°, and the first inclination angle and the second inclination angle are complementary to each other.

[0024] Optionally, the electronic filter further comprises: a plurality of high voltage electrodes and a plurality of low voltage electrodes;

[0025] The high voltage generator is electrically connected to the electrode column via at least one high voltage electrode;

[0026] The cylindrical electrode is electrically connected to at least one of the low-voltage electrodes;

[0027] The high voltage electrode and the low voltage electrode are used for electrostatic adsorption in the cylindrical electrode.

[0028] Optionally, the ratio of the diameter of the electrode column to the diameter of the cylindrical electrode is any value between 1 / 2 and 4 / 5.

[0029] Optionally, the air purifier further comprises: a device end cover, the device end cover being detachably arranged at the air inlet;

[0030] The device end cover is annular, and the filter is located inside the device end cover;

[0031] A first boss and a plurality of limiting bolts are arranged on the inner side of the equipment end cover;

[0032] A second boss is arranged on the outer side of the annular shell;

[0033] The second boss is sandwiched between the first boss and the plurality of limiting bolts.

[0034] According to a second aspect of an embodiment of the present invention, there is provided an air purification method, which is applied to the air purifier as described in the first aspect, and the method comprises:

[0035] The fan drives air into the cartridge electrode in the electronic filter;

[0036] Control the high voltage generator to supply power to the electrode column in the electronic filter;

[0037] The working mode of the air purifier is controlled by adjusting the power supply voltage value of the electrode column.

[0038] Optionally, before controlling the working mode of the air purifier by adjusting the supply voltage value of the electrode column, the method further includes:

[0039] Obtain ambient air quality information;

[0040] The supply voltage value of the electrode column is determined according to the ambient air quality information.

[0041] Optionally, controlling the working mode of the air purifier by adjusting the supply voltage value of the electrode column includes at least one of the following:

[0042] Adjusting the power supply voltage of the electrode column to be no greater than 2000V, and controlling the working mode of the air purifier to be a dust removal mode;

[0043] Adjusting the power supply voltage value of the electrode column to 2000V to 5000V, and controlling the working mode of the air purifier to the first disinfection mode;

[0044] The supply voltage value of the electrode column is adjusted to 5000V to 20000V, and the working mode of the air purifier is controlled to the second disinfection mode.

[0045] Optionally, when the working mode of the air purifier is a dust removal mode, the method further includes:

[0046] Electrostatic adsorption is performed by high-voltage electrodes and low-voltage electrodes in the electronic filter.

[0047] In an embodiment of the present invention, the air flowing into the air purifier is guided by a guide plate arranged on the filter net, and the electrode column in the cylindrical electrode is powered so that the electrode belt on the electrode column discharges to purify the air. In this way, the air can flow in the cylindrical electrode in a vortex manner, reducing turbulence formed by mutual disturbance of gases and reducing wind noise; at the same time, the gas reduces disturbance, which is beneficial to the purification of the air and improves the air purification efficiency of the air purifier. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0049] Figure 1 A schematic diagram of the assembly of an air purifier provided by an embodiment of the present invention;

[0050] Figure 2a A schematic diagram of the structure of a filter screen provided in an embodiment of the present invention;

[0051] Figure 2b A side view of a filter screen provided by an embodiment of the present invention;

[0052] Figure 2c for Figure 2b A magnified schematic diagram of the middle area A;

[0053] Figure 2d One of the schematic diagrams of assembling the filter screen and the device end cover provided in the embodiment of the present invention;

[0054] Figure 2e The second schematic diagram of the assembly of the filter screen and the device end cover provided in the embodiment of the present invention;

[0055] Figure 3 A cross-sectional view of an electronic filter provided by an embodiment of the present invention;

[0056] Figure 4a A schematic diagram of the structure of a cylindrical electrode provided in an embodiment of the present invention;

[0057] Figure 4b for Figure 4a A magnified schematic diagram of the middle area B;

[0058] Figure 5a One of the structural schematic diagrams of the ion generator provided in the embodiment of the present invention;

[0059] Figure 5b A second structural schematic diagram of an ion generator provided in an embodiment of the present invention;

[0060] Figure 5c A schematic diagram of the structure of an electrode belt provided in an embodiment of the present invention;

[0061] Figure 5d A schematic diagram of the electric field distribution of a tip electrode provided in an embodiment of the present invention;

[0062] Figure 5e A schematic diagram of energy distribution of a tip electrode provided in an embodiment of the present invention;

[0063] Figure 6 A schematic diagram of a flow chart of an air purification method provided by an embodiment of the present invention;

[0064] Figure 7 A schematic diagram of the corresponding relationship between voltage and generated ozone concentration provided in an embodiment of the present invention. Implementation

[0065] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0066] In the embodiments of the present invention, words such as "exemplary" or "for example" are used to indicate examples, illustrations or explanations. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present invention should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific way.

[0067] Herein, relational terms such as “first” and “second” etc. are used merely to distinguish the same names, but do not imply a relationship or order between the names.

[0068] See also Figures 1 to 5c , an embodiment of the present invention provides an air purifier, comprising: a housing 1, a filter 2, an electronic filter 3 for purifying air, a high voltage generator 4, and a fan 5;

[0069] The top of the housing 1 is provided with an air inlet, and the bottom of the housing 1 is provided with an air outlet; Figure 1 The shape of the shell 1 shown is cylindrical. A control panel 11 can be set on the shell 1. The user can control the operation of the air purifier by operating on the control panel 11. The control panel can be an existing control panel structure. The embodiment of the present invention does not limit the specific structure of the control panel 11.

[0070] The filter 2 is arranged at the air inlet. Referring to FIG. 2 , a plurality of guide plates 21 are arranged on the filter 2. The guide plates 21 are used to guide the air flowing into the air inlet.

[0071] The electronic filter 3 is located inside the housing 1, see Figure 3 The electronic filter 3 comprises: a cylindrical electrode 31 and an ion generator 32 located inside the cylindrical electrode 31; see Figure 5a and Figure 5b The ion generator 32 includes: an electrode column 321 and an electrode belt 322 arranged on the electrode column 321. The electrode belt 322 can be distributed on the electrode column 321 along a spiral direction (such as Figure 5a The electrode belt 322 may also be distributed radially on the electrode column 321 (as shown in Figure 5b shown);

[0072] Optionally, a bracket 30 is provided in the electronic filter 3 for fixing the ion generator 32 in the cylindrical electrode 31 .

[0073] Optionally, the ratio of the diameter of the electrode column 321 to the diameter of the cylindrical electrode 31 is any value between 1 / 2 and 4 / 5 to obtain a better air purification effect.

[0074] The high voltage generator 4 is electrically connected to the electrode column 321 and is used to provide high voltage electricity to the electrode column, thereby discharging the electrode belt 322 . The high voltage generator 4 can adopt an existing high voltage generator, and the embodiment of the present invention does not limit the specific structure of the high voltage generator 4 .

[0075] It is understandable that the cylindrical electrode 31 can be grounded or connected to a low voltage, so that when the electrode belt 322 is connected to high voltage, there is a voltage difference between the electrode belt 322 and the cylindrical electrode 31, thereby discharging.

[0076] The fan 5 is used to drive the air to flow from the air inlet to the air outlet. The fan 5 drives the air flow, so that the air to be purified outside the air purifier flows in from the air inlet, and the purified air is blown out from the air outlet, thereby achieving continuous purification of the indoor air.

[0077] In the embodiment of the present invention, air flows in from the air inlet, is guided by the guide plate 21, and flows in the cylindrical electrode 31 in a vortex manner. The high-voltage generator 4 supplies power to the electrode column 321 to discharge the electrode belt 322. The air is ionized by the discharge to generate plasma, negative ions, ozone and other substances to purify the air.

[0078] Since the air flows in the vortex direction, the turbulence caused by mutual disturbance between gases is reduced, thereby reducing the wind noise generated by the air flow; at the same time, the reduction of gas disturbance is also beneficial to the purification efficiency of the air in the cylindrical electrode 31, providing an air purification effect for the air purifier.

[0079] In an embodiment of the present invention, the air flowing into the air purifier is guided by a guide plate arranged on the filter net, and the electrode column in the cylindrical electrode is powered so that the electrode belt on the electrode column discharges to purify the air. In this way, the air can flow in the cylindrical electrode in a vortex manner, reducing turbulence formed by mutual disturbance of gases and reducing wind noise; at the same time, the gas reduces disturbance, which is beneficial to the purification of the air and improves the air purification efficiency of the air purifier.

[0080] In some embodiments, the air purifier further includes: a first sound-absorbing cotton 61 disposed on the filter 2, and a second sound-absorbing cotton 62 disposed between the high-voltage generator 4 and the fan 5, so that the wind noise reduction effect is further improved by the sound-absorbing cotton.

[0081] In some embodiments, the air purifier further includes: a base 7 for supporting the entire air purifier, and a receiving space 71 may be provided on the base 7, in which a carbon bag 72 is provided, and the air is adsorbed and purified by the carbon bag 72, thereby further improving the air purification effect.

[0082] The following is a detailed description of the various components in the air purifier in conjunction with the accompanying drawings.

[0083] See also Figure 2a to Figure 2e The filter screen 2 comprises: an annular shell 22 and a filter screen body 23;

[0084] The filter body 23 and the plurality of guide plates 21 are arranged inside the annular housing 22;

[0085] The filter body 23 is used for preliminary filtering of the air to be purified to remove larger contaminants such as paper pieces and large dust particles. The filter body 23 may adopt an existing filter. The embodiment of the present invention does not specifically limit the structure of the filter body 23.

[0086] It is understandable that the arrangement order of the filter body 23 and the guide plate 21 is not limited when the filter body 23 and the guide plate 21 are provided, that is, the air can pass through the filter body 23 first and then the guide plate 21, or pass through the guide plate 21 first and then the filter body 23.

[0087] The guide plate 21 is bent into an arc shape, and there is a first inclination angle between the guide plate 21 and the horizontal plane, that is, Figure 2b The angle α in .

[0088] It should be noted that when setting the bending direction of the guide plate 21, the environmental factors used by the air purifier must be considered. Specifically, the environmental factor is the direction of the local Coriolis force. The Coriolis force will affect the vortex flow of the fluid. Therefore, when guiding the gas, the diversion direction needs to be matched with the direction of the Coriolis force.

[0089] Specifically, when the air purifier is used in the northern hemisphere, each guide plate 21 is bent in a counterclockwise direction along the gas flow direction, that is, Figure 2a In the scene shown, when the air purifier is used in the southern hemisphere, each guide plate 12 is bent in a clockwise direction along the gas flow direction. In this way, the influence of the Coriolis force on the flow of the airflow can be avoided, and the gas flow can be ensured to be stable.

[0090] See also Figure 2d and Figure 2e Optionally, the air purifier further includes: a device end cover 20, which is detachably arranged at the air inlet, for example, connected to the air inlet by a buckle;

[0091] The device end cover 20 is annular, and the filter screen 2 is located inside the device end cover 20;

[0092] A first boss 201 and a plurality of limit bolts 202 are provided on the inner side of the equipment end cover 20;

[0093] A second boss 221 is provided on the outer side of the annular housing 22 of the filter screen 2;

[0094] The second boss 221 is clamped between the first boss 201 and multiple limiting bolts 202. The limiting bolts 202 can use existing limiting bolts, such as hexagon socket bolts. Since the limiting bolts 202 are located on the inner side of the equipment end cover 20, the use of hexagon socket bolts can achieve limiting fixation. The hexagon socket wrench can be directly used during disassembly, saving bolt assembly space.

[0095] In the embodiment of the present invention, a boss is provided on the device end cover 20 and the annular shell 22, and the filter screen 2 is limited by the limit bolt 202, so that the filter screen 2 can be fixed in the device end cover 20. At the same time, the limit bolt is a detachable part. When the filter screen 2 needs to be replaced or inspected, the filter screen 2 can be disassembled by simply removing the limit bolt 202.

[0096] Continue to see Figure 3 , the electronic filter 3 further includes: a plurality of high voltage electrodes and a plurality of low voltage electrodes;

[0097] The high voltage generator 4 is electrically connected to the electrode column 321 via at least one high voltage electrode;

[0098] The cylinder electrode 31 is electrically connected to at least one low voltage electrode;

[0099] The high voltage electrode and the low voltage electrode are used for electrostatic adsorption inside the cylindrical electrode 31 .

[0100] In the embodiment of the present invention, a high voltage electrode and a low voltage electrode are provided to provide high voltage electricity to the electrode column 321, and low voltage electricity to the cylindrical electrode 31, so that a voltage difference is formed between the electrode belt 322 on the electrode column 321 and the cylindrical electrode 31, so that the electrode belt 322 is discharged;

[0101] Furthermore, since the electrode belt 322 discharges to generate negative ions, the particles in the air are charged. Due to the voltage difference between the high-voltage electrode and the low-voltage electrode, when the charged particles flow through the high-voltage electrode and the low-voltage electrode with the air, they will be electrostatically adsorbed, thereby achieving the effect of further purifying the air.

[0102] See also Figure 4a and Figure 4b The cylindrical electrode 31 is formed by winding a corrugated plate 311 in a spiral direction. The corrugated plate 311 is provided with corrugations, which are parallel to the extension direction of the corrugated plate and are used to guide the air flowing into the cylindrical electrode. There is a second inclination angle between the corrugations and the horizontal plane, namely the angle β in the figure.

[0103] In an embodiment of the present invention, a corrugated plate 311 is used to be wound in a spiral direction to form a cylindrical electrode 31, so that the obtained cylindrical electrode 31 has corrugations in a spiral direction. The corrugations can guide the air flowing into the cylindrical electrode 31, so that the air flows in a vortex manner. In this way, through the dual guiding effects of the filter 2 and the cylindrical electrode 31, the air flows in the air purifier in a vortex manner, thereby reducing gas disturbance, reducing wind noise, and at the same time improving the air purification efficiency.

[0104] It should be noted that, in order to achieve a good air guiding effect, when the corrugated plate 311 is wound into the cylindrical electrode 31, its winding direction should be consistent with the bending direction of the guide plate 21 in the filter 2 to guide the air in the same direction.

[0105] Combination Figure 3 , Figure 4a and Figure 4b The high-voltage electrode and the low-voltage electrode can adopt the same structure as the cylindrical electrode 31, so that the high-voltage electrode, the low-voltage electrode and the cylindrical electrode 31 can be assembled together in a sleeve manner, which is convenient for assembly and can save the internal space of the air purifier.

[0106] See also Figure 5a to Figure 5b , the figure shows the structures of two ion generators 32:

[0107] Figure 5aAn electrode belt 322 is provided on the electrode column 321 shown, and the electrode belt 322 is distributed on the electrode column 321 along a spiral direction;

[0108] Figure 5b The electrode column 321 shown is provided with a plurality of electrode strips 322, and each electrode strip 322 is distributed on the electrode column 321 in a radial direction;

[0109] Figure 5c As shown, the electrode belt 322 includes: a base belt 3221 and a plurality of pointed electrodes 3222 arranged on the base belt 3221 .

[0110] In an embodiment of the present invention, the connecting line of adjacent tip electrodes 3222 is a spiral line, so that when air flows through the tip electrode 3222, the tip electrode 3222 can guide the air, causing the air to flow in a vortex manner, reducing disturbances between gases, reducing wind noise, and improving air purification efficiency.

[0111] There is a second inclination angle between the line connecting the adjacent tip electrodes 3222 and the horizontal plane, that is, Figure 5a and Figure 5b The angle β in Figure 5a In the scenario shown, the electrode strips 322 are distributed on the electrode column 321 along the spiral direction, and the electrode strips 322 can be distributed in a spiral along the angle β, so that the line connecting the adjacent tip electrodes 3222 is a spiral line; Figure 5b In the scenario shown in which a plurality of electrode strips 322 are radially distributed on the electrode column 321 , the height of the tip electrode 3222 in each electrode strip 322 can be adjusted so that the connection line of adjacent tip electrodes 3222 is a spiral line.

[0112] It should be noted that in order to achieve a good air guiding effect, the spiral direction of the line connecting adjacent tip electrodes 3222 should be consistent with the bending direction of the guide plate 21 and the corrugated spiral direction of the cylindrical electrode 31 to guide the air in the same direction.

[0113] In some specific embodiments, the first inclination angle, that is, angle α, is any angle between 45° and 87°, and the first inclination angle and the second inclination angle are complementary to each other, that is, angle β is any angle between 3° and 45°. Using this angle range can enable the air purifier to obtain better wind noise reduction effect and air purification efficiency.

[0114] Optionally, the tip shape of the tip electrode 3222 is a triangle, and the vertex angle is not greater than 45°; the thickness of the tip electrode 3222 is 0.01 mm to 3 mm; the tip electrode 3222 is connected to the side of the base band 3221 in the length direction, and the angle between the tip electrode and the base band 3221 is any angle between 30° and 150°.

[0115] See also Figure 5dand Figure 5e ,in Figure 5d is the electric field distribution diagram of the tip electrode, Figure 5e is the energy distribution diagram of the tip electrode. Figure 5d It can be seen that no matter which tip model is used, the electric field is concentrated on the surface of the conductor and is significantly more concentrated at the tip than at other locations. The electric field intensity at the tip of the arc tip model (i.e., the model on the right in Figure 5d) is greater than that of the triangular tip model (i.e., the model on the left in Figure 5d), but the electric field of the triangular tip model is more concentrated at the tip. Figure 5e It can be seen that the energy is only concentrated near the tip of the conductor. The energy of the arc tip model (i.e., the model on the right in Figure 5e) at the tip is greater than that of the triangular tip model (i.e., the model on the left in Figure 5e), but the energy of the triangular tip model is greater in a wider range.

[0116] Therefore, on the surface of a conductor, the sharper the position, the greater the charge density at the tip of the conductor, the stronger the field strength nearby, and the energy is also concentrated near the tip.

[0117] See also Figure 6 The embodiment of the present invention further provides an air purification method, the execution subject of the method is the air purifier as mentioned above, and the specific steps of the method are as follows:

[0118] Step 601: driving air through a fan to flow into a cylindrical electrode in an electronic filter;

[0119] In an embodiment of the present invention, the air flow is driven by the rotation of the fan, so that the air to be purified outside the air purifier flows into the air inlet of the purifier, specifically, flows into the cylindrical electrode inside the purifier, and is purified by the ion generator in the cylindrical electrode.

[0120] Step 602: Control the high voltage generator to supply power to the electrode column in the electronic filter;

[0121] In an embodiment of the present invention, the electrode column is powered by a high voltage generator, so that a voltage difference is generated between the electrode column and the barrel electrode, thereby achieving discharge of the electrode belt on the electrode column to generate low-temperature plasma, negative ions, ozone and other substances to purify the air.

[0122] The energy transfer in low-temperature plasma can be roughly divided into: electrons obtain energy from the electric field, and convert the energy into the internal energy and kinetic energy of molecules through collisions. The molecules that obtain energy are excited. At the same time, some molecules are ionized. These activated particles collide with each other, causing a series of complex physical and chemical reactions. The plasma is rich in a large number of active particles such as ions, electrons, excited atoms and molecules, and free radicals, which provides conditions for plasma technology to treat odor substances through chemical reactions.

[0123] Low-temperature plasma degradation of pollutants utilizes these high-energy electrons, free radicals and other active particles and pollutants in the gas to decompose the pollutant molecules in a very short time, and then various subsequent reactions occur to achieve the purpose of degrading the pollutants.

[0124] Low-temperature plasma treatment of various pollutants emitted into the environment is more efficient and has lower energy consumption than other methods such as high-temperature incineration, catalytic combustion and activated carbon adsorption.

[0125] Step 603: Controlling the working mode of the air purifier by adjusting the supply voltage value of the electrode column;

[0126] In the embodiment of the present invention, the type of substance generated by the discharge of the electrode strip is changed by adjusting the supply voltage value of the electrode column, thereby changing the working mode of the air purifier.

[0127] See also Figure 7 The figure shows the corresponding relationship between voltage and ozone concentration. For dry and wet gas discharges, the greater the discharge voltage, the greater the ozone concentration and gradually stabilizes. The amount of ozone produced by dry air and wet air increases with the increase of discharge voltage, and the ozone concentration in wet air is lower than that in dry air. Control a certain ozone concentration in the purifier to achieve different treatment effects.

[0128] Specifically, by adjusting the supply voltage value of the electrode column, the working mode of the air purifier is controlled to include at least one of the following:

[0129] The power supply voltage of the electrode column is adjusted to be no greater than 2000V, and the working mode of the air purifier is controlled to be the dust removal mode;

[0130] Adjusting the supply voltage value of the electrode column to 2000V to 5000V, and controlling the working mode of the air purifier to the first disinfection mode;

[0131] Adjust the power supply voltage value of the electrode column to 5000V to 20000V, and control the working mode of the air purifier to the second disinfection mode;

[0132] In an embodiment of the present invention, when the working mode is the dust removal mode, the tip electrode of the electrode belt discharges to release electrons. Although its energy is not enough to generate plasma, the negative ions formed by the electrons can cause particles in the air to attach static electricity, so that the statically charged particles can be filtered out through subsequent electrostatic adsorption; specifically, when the working mode of the air purifier is the dust removal mode, electrostatic adsorption is performed through the high-voltage electrode and the low-voltage electrode in the electronic filter.

[0133] When the working mode is the first disinfection mode, the tip electrode of the electrode belt discharges to generate low-temperature plasma and a small amount of ozone to kill microorganisms in the air and decompose and oxidize organic matter in the air.

[0134] When the working mode is the second disinfection mode, the tip electrode of the electrode belt discharges to generate a large amount of plasma and ozone, which can kill microorganisms in the air to the greatest extent and decompose and oxidize organic matter in the air.

[0135] The first disinfection mode mentioned above may also be referred to as a conventional disinfection mode, and the second disinfection mode may be referred to as a strong disinfection mode.

[0136] Optionally, before executing step 601, the method may further include the following steps:

[0137] Obtain ambient air quality information;

[0138] In an embodiment of the present invention, the ambient air quality information is used to reflect the air quality of the current environment, and the ambient air quality information may include: physical parameters, such as temperature, humidity, air flow rate, etc.; chemical parameters, such as sulfur dioxide, nitrogen dioxide, inhalable particulate matter, etc.; biological parameters, such as total colony count.

[0139] The above-mentioned ambient air quality information can be obtained through existing sensors or air detection equipment. The embodiment of the present invention does not limit the specific method for obtaining the ambient air quality information.

[0140] (2) Determine the power supply voltage value of the electrode column according to the ambient air quality information;

[0141] In the embodiment of the present invention, the corresponding supply voltage value is determined according to the obtained ambient air quality information, and the corresponding relationship between the ambient air quality information and the supply voltage value of the electrode column can be pre-stored in the air purifier, and the purifier automatically determines the supply voltage value according to the specific content of the quality information. The embodiment does not specifically limit the corresponding relationship between the ambient air quality information and the supply voltage value of the electrode column.

[0142] In the embodiment of the present invention, by adjusting the power supply voltage value of the electrode column, the air purifier has multiple working modes, so that the air purifier can be applied to various scenarios.

[0143] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. An air purifier, characterized in that: include: Housing, filter screen, electronic filter for purifying air, high voltage generator, fan; The top of the shell is provided with an air inlet, and the bottom of the shell is provided with an air outlet; The filter screen is arranged at the air inlet, and a plurality of guide plates are arranged on the filter screen, and the guide plates are used to guide the air flowing into the air inlet; The electronic filter is located inside the housing, and includes: a cylindrical electrode and an ion generator located inside the cylindrical electrode, the ion generator includes: an electrode column and an electrode belt arranged on the electrode column; the high voltage generator is electrically connected to the electrode column; The fan is used to drive air to flow from the air inlet to the air outlet; The air flows in from the air inlet, is guided by the guide plate, and flows in the cylindrical electrode in a vortex manner, and the high-voltage generator supplies power to the electrode column, so that the electrode belt discharges to purify the air; The cylindrical electrode is formed by winding a corrugated plate in a spiral direction, and the corrugated plate is provided with corrugations, and the corrugations are parallel to the extension direction of the corrugated plate, and the corrugations are used to guide the air flowing into the cylindrical electrode; There is a second inclination angle between the corrugations and the horizontal plane; The air purification method of the air purifier comprises: The fan drives air into the cartridge electrode in the electronic filter; Control the high voltage generator to supply power to the electrode column in the electronic filter; The working mode of the air purifier is controlled by adjusting the power supply voltage value of the electrode column.

2. The air purifier according to claim 1, characterized in that: The filter screen comprises: an annular shell and a filter screen body; The filter body and the plurality of guide plates are arranged inside the annular shell; The guide plate is bent into an arc shape, and a first inclination angle is formed between the guide plate and a horizontal plane.

3. The air purifier according to claim 2, characterized in that: One electrode belt is arranged on the electrode column, and the electrode belt is distributed on the electrode column along a spiral direction; or, a plurality of electrode belts are arranged on the electrode column, and each electrode belt is distributed on the electrode column along a radial direction.

4. The air purifier according to claim 3, characterized in that: The electrode belt comprises: A baseband and a plurality of tip electrodes disposed on the baseband; The connecting line of adjacent tip electrodes is a spiral line and has a second inclination angle with the horizontal plane.

5. The air purifier according to claim 4, characterized in that: The bending direction of the guide plate is consistent with the spiral direction of the corrugations of the cylindrical electrode and the spiral direction of the connecting line of the adjacent tip electrodes.

6. The air purifier according to claim 4, characterized in that: The first inclination angle is any angle between 45° and 87°, and the first inclination angle and the second inclination angle are complementary to each other.

7. The air purifier according to claim 1, characterized in that: The electronic filter further comprises: a plurality of high voltage electrodes and a plurality of low voltage electrodes; The high voltage generator is electrically connected to the electrode column via at least one high voltage electrode; The cylindrical electrode is electrically connected to at least one of the low-voltage electrodes; The high voltage electrode and the low voltage electrode are used for electrostatic adsorption in the cylindrical electrode.

8. The air purifier according to claim 1, characterized in that: The ratio of the diameter of the electrode column to the diameter of the cylindrical electrode is any value between 1 / 2 and 4 / 5.

9. The air purifier according to claim 2, characterized in that: The air purifier also includes: An equipment end cover, the equipment end cover is detachably arranged at the air inlet; The device end cover is annular, and the filter is located inside the device end cover; A first boss and a plurality of limiting bolts are arranged on the inner side of the equipment end cover; A second boss is arranged on the outer side of the annular shell; The second boss is sandwiched between the first boss and the plurality of limiting bolts.

10. An air purification method, applied to the air purifier according to any one of claims 1 to 9, characterized in that: The method comprises: The fan drives air into the cartridge electrode in the electronic filter; Control the high voltage generator to supply power to the electrode column in the electronic filter; The working mode of the air purifier is controlled by adjusting the power supply voltage value of the electrode column.

11. The method according to claim 10, characterized in that Before controlling the working mode of the air purifier by adjusting the supply voltage value of the electrode column, the method further includes: Obtain ambient air quality information; The supply voltage value of the electrode column is determined according to the ambient air quality information.

12. The method according to claim 10, characterized in that The controlling of the working mode of the air purifier by adjusting the supply voltage value of the electrode column includes at least one of the following: Adjusting the power supply voltage of the electrode column to be no greater than 2000V, and controlling the working mode of the air purifier to be a dust removal mode; Adjusting the power supply voltage value of the electrode column to 2000V to 5000V, and controlling the working mode of the air purifier to the first disinfection mode; The supply voltage value of the electrode column is adjusted to 5000V to 20000V, and the working mode of the air purifier is controlled to the second disinfection mode.

13. The method according to claim 12, characterized in that When the working mode of the air purifier is a dust removal mode, the method further includes: Electrostatic adsorption is performed by high-voltage electrodes and low-voltage electrodes in the electronic filter.

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