Self-cleaning plasma generator and plasma gas purifier

Abstract

The present disclosure provides a self-cleaning plasma generating device, characterized in that it includes: a base having a first surface and a second surface; a positive ion releaser array, which is arranged at the first surface of the base and includes a plurality of positive ion releasers for releasing positive ions; a negative ion releaser array, which is arranged at the second surface of the base and includes a plurality of negative ion releasers for releasing negative ions; and one or more cleaning mechanisms for cleaning the positive ion releasers and the negative ion releasers.

Description

Technical Field

[0001] The present disclosure relates to the field of plasma technology, and in particular to a self-cleaning plasma generating device and a plasma gas purifier. Background Art

[0002] Currently, cutting-edge gas purification equipment utilizes plasma purification technology. This technology utilizes high-voltage discharge to ionize the air, generating a large number of electrons and ions. The energy generated by the collision and annihilation of these positive and negative ions can decompose pathogens in the air or on surfaces, achieving a sterilizing effect. Simultaneously, the large number of free radicals, such as OH and O, generated during the discharge process can further react with harmful organic molecules such as formaldehyde, SO₂, and NO₂, effectively breaking down pollutants. Furthermore, the resulting attraction of oppositely charged particles in the air causes them to expand from small to larger sizes, resulting in dust fall and meeting dust removal requirements.

[0003] Existing plasma generators often utilize needle-point, serrated, filament-shaped, or DBD flat-plate emitter electrodes. While these technologies offer advantages such as high sterilization efficiency and the absence of consumables, dust easily accumulates on the electrodes after long-term operation, significantly reducing their ion release efficiency and air purification capabilities. Furthermore, the plasma generators are installed within gas purification equipment, requiring downtime for cleaning and replacement, and the disassembly process is cumbersome.

[0004] As mentioned above, there are many problems in the existing plasma gas purifiers, such as the deterioration of sterilization and dust removal effects after long-term use, reduced efficiency, and inconvenience in disassembly, cleaning and replacement. Summary of the Invention

[0005] In some embodiments, the present disclosure provides a self-cleaning plasma generating device, characterized in that it includes: a base having a first surface and a second surface; a positive ion releaser array, arranged at the first surface of the base and including a plurality of positive ion releasers for releasing positive ions; a negative ion releaser array, arranged at the second surface of the base and including a plurality of negative ion releasers for releasing negative ions; and one or more cleaning mechanisms for cleaning the positive ion releasers and the negative ion releasers.

[0006] In some embodiments, the first surface and the second surface of the base are arranged opposite to each other, facing each other, coplanar, at an angle, or connected to form a closed curved surface.

[0007] In some embodiments, the positive ion releaser array at the first surface includes at least one of the following arrangement methods: linear arrangement, arc-shaped arrangement, zigzag arrangement, rectangular arrangement, circular arrangement, and polygonal arrangement; and / or the negative ion releaser array at the second surface includes at least one of the following arrangement methods: linear arrangement, arc-shaped arrangement, zigzag arrangement, rectangular arrangement, circular arrangement, and polygonal arrangement.

[0008] In some embodiments, the positive ion releaser and the negative ion releaser include a micro-nano conductive fiber cluster, which includes at least one of the following: one or more of carbon fiber, graphite fiber, metal fiber, glass fiber, ceramic fiber, short tungsten wire, polypropylene or polyethylene filaments doped with carbon fiber; micro-nano fibers with a number ranging from 1000 to 100,000; or micro-nano fibers with a diameter ranging from 10 nanometers to 100 microns.

[0009] In some embodiments, the cleaning mechanism includes a drive motor, a transmission mechanism, and one or more wiping sheets, wherein the transmission rod is connected to the output end of the drive motor and moves under the drive of the drive motor, and the one or more wiping sheets are arranged on the transmission mechanism and clean the positive ion release array and / or the negative ion release array under the drive of the transmission mechanism.

[0010] In some embodiments, the one or more cleaning mechanisms include: a positive ion releaser cleaning mechanism for cleaning the positive ion releaser; and a negative ion releaser cleaning mechanism for cleaning the negative ion releaser.

[0011] In some embodiments, the transmission mechanism is used to drive one or more wipers to move linearly or curvilinearly to sweep across the ends of the positive ion releaser and / or the negative ion releaser.

[0012] In some embodiments, the transmission mechanism includes a transmission rod, wherein the one or more wiping blades are disposed on the transmission rod, and the transmission rod is configured to rotate under the drive of a drive motor to drive the one or more wiping blades to move.

[0013] In some embodiments, one end of the transmission rod is connected to the output end of the drive motor, and the other end is provided with one or more wiping blades; or the middle part of the transmission rod is connected to the output end of the drive motor, and the end part is provided with one or more wiping blades.

[0014] In some embodiments, the positive ion releaser array and the negative ion release array are arranged on the first surface and the second surface connected to form a closed surface, and the positive ion releaser array and the negative ion release array both extend outward from the closed surface. The middle part of the transmission rod is located at the center of the closed surface and is connected to the output end of the drive motor. At least one end is provided with one or more wiping sheets, and the one or more wiping sheets are used to wipe the electrodes of the positive ion releaser and the negative ion releaser.

[0015] In some embodiments, the transmission mechanism includes: a first connecting rod, one end of which is connected to the output end of the driving motor; a second connecting rod, one end of which is rotatably connected to the other end of the first connecting rod; a slide rail; and a slider, which is slidably arranged on the slide rail and connected to the other end of the second connecting rod to slide along the slide rail under the drive of the driving motor, wherein one or more wipers are arranged on the slider.

[0016] In some embodiments, one or more wipers are disposed on a first side of the slider corresponding to the first surface and a second side corresponding to the second surface, and are used to clean the positive ion emitter array and the negative ion emitter array, respectively.

[0017] In some embodiments, the transmission mechanism includes: a screw rod, one end of which is connected to the output end of the driving motor so as to rotate around its axis under the drive of the driving motor; a slider, which is sleeved on the screw rod and cooperates with the screw rod, and moves along the length direction of the screw rod as the screw rod rotates, wherein one or more wiping sheets are arranged on the slider.

[0018] In some embodiments, one or more wipers are disposed on a first side of the slider corresponding to the first surface and a second side corresponding to the second surface, and are used to clean the positive ion emitter array and the negative ion emitter array, respectively.

[0019] In some embodiments, the first surface and the second surface are respectively located above and below the screw rod, and the wiping sheet disposed on the first side and the wiping sheet disposed on the second side extend in opposite directions.

[0020] In some embodiments, the transmission mode of the transmission mechanism and the wiper blade includes at least one of the following transmission modes: connecting rod transmission, gear transmission, belt transmission, chain transmission, worm transmission and spiral transmission.

[0021] In some embodiments, the base is at least one of cylindrical, elliptical, cuboid, and prism-shaped.

[0022] In some embodiments, the present disclosure provides a plasma gas purifier, comprising: a purifier housing having an air flow inlet and an air flow outlet; one or more of the aforementioned self-cleaning plasma generating devices, disposed in the purifier housing; and an air flow driving device, for driving the air flow to enter from the air flow inlet and pass through the one or more self-cleaning plasma generating devices and then be discharged from the air flow outlet.

[0023] In some embodiments, the plasma gas purifier further includes a plasma processing region located within the purifier housing, wherein the one or more self-cleaning plasma generating devices release plasma into the plasma processing region.

[0024] In some embodiments, the plasma gas purifier further includes a filter screen, which is disposed at the air flow inlet of the purifier housing. The filter screen includes one or more of a primary filter screen, a medium efficiency filter screen, and a high efficiency filter screen.

[0025] The self-cleaning plasma generators according to some embodiments of the present disclosure can achieve beneficial technical effects. For example, they can address the conventional problem of large amounts of dust adsorbed on plasma generating electrodes after long-term operation, seriously affecting the ion release efficiency of the plasma generating electrodes. These devices can clean the plasma generating electrodes in real time, wiping away small particles such as dust adsorbed on the electrodes, thereby ensuring stable, high ion release efficiency.

[0026] The plasma gas purifiers according to some embodiments of the present disclosure can achieve beneficial technical effects. For example, the plasma gas purifiers according to some embodiments of the present disclosure can solve the problems of conventional purifiers, such as the need for regular disassembly and cleaning of the plasma generating module and the inconvenience of disassembly and replacement of the plasma generating module. The plasma generating module of the gas purifier can achieve real-time self-cleaning, maintaining stable gas purification effects and efficiency without the need for downtime, disassembly, and cleaning, and can also be easily disassembled and replaced. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only one embodiment of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0028] Figure 1 A schematic structural diagram of a self-cleaning plasma generating device according to some embodiments of the present disclosure is shown;

[0029] Figure 2 A schematic structural diagram of a self-cleaning plasma generating device according to other embodiments of the present disclosure is shown;

[0030] Figure 3 A schematic structural diagram of a self-cleaning plasma generating device according to other embodiments of the present disclosure is shown;

[0031] Figure 4 A schematic structural diagram of a self-cleaning plasma generating device according to other embodiments of the present disclosure is shown;

[0032] Figure 5 Show Figure 4 A schematic structural diagram of the self-cleaning plasma generating device from another angle;

[0033] Figure 6 A schematic structural diagram of a plasma gas purifier according to some embodiments of the present disclosure is shown.

[0034] In the above drawings, the reference numerals represent:

[0035] 100, 200, 300, 400 self-cleaning plasma generators

[0036] 110, 210, 310, 410 base

[0037] 111, 211, 311, 411 first surface

[0038] 112, 212, 312, 412 second surface

[0039] 313 mounting ring

[0040] 413a, 413b mounting seat

[0041] 414 first installation strip

[0042] 415 second mounting strip

[0043] 120 positive ion emitter array

[0044] 121, 221, 321, 421 positive ion releasers

[0045] 130 negative ion emitter array

[0046] 131, 331, 431 negative ion releasers

[0047] 140, 240, 340, 440 cleaning mechanisms

[0048] 141, 241, 441 drive motors

[0049] 142, 242, 342, 442 transmission mechanisms

[0050] 2421 first connecting rod

[0051] 2422 second connecting rod

[0052] 2423 slide rail

[0053] 2424 Slider

[0054] 3421 Rotating Axis

[0055] 3422 transmission rod

[0056] 4421 screw

[0057] 4422 Slider

[0058] 4422-1 First side

[0059] 4422-2 Second side

[0060] 143, 243, 343, 443a, 443b wipes

[0061] 144 base

[0062] 1000 plasma gas purifier

[0063] 500 purifier housing

[0064] 501 airflow inlet

[0065] 502 airflow outlet

[0066] 600 air flow drive unit

[0067] 700 filter DETAILED DESCRIPTION

[0068] Some embodiments of the present disclosure will be described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only exemplary embodiments of the present disclosure, rather than all embodiments.

[0069] In the description of the present disclosure, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", "top", "bottom" 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 disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present disclosure. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present disclosure, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "coupling" should be understood in a broad sense, for example, it can be a fixed connection or a detachable 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. For those of ordinary skill in the art, the specific meanings of the above terms in the present disclosure can be understood according to the specific circumstances.

[0070] Those skilled in the art will appreciate that the embodiments of the present disclosure can be widely applied to various fields. In the description of the present disclosure, the field of air purification is used as an example only for the purpose of brevity and clarity of description, and does not constitute a limitation of the embodiments of the present disclosure. On the contrary, the embodiments of the present disclosure can be applied to other fields, such as medical devices, cold chain logistics, fresh food processing, etc.

[0071] Figure 1 FIG. 1 shows a schematic structural diagram of a self-cleaning plasma generating device 100 according to some embodiments of the present disclosure. Figure 1 As shown, the self-cleaning plasma generating device 100 may include a base 110, a positive ion emitter array 120, a negative ion emitter array 130, and a cleaning mechanism 140. The base 110 may include a first surface 111 and a second surface 112. The positive ion emitter array 120 is disposed on the first surface 111 of the base 110 and may include a plurality of positive ion emitters 121 for releasing positive ions. Similarly, the negative ion emitter array 130 is disposed on the second surface 112 of the base 110 and may include a plurality of negative ion emitters 131 for releasing negative ions. The cleaning mechanism 140 may be used to clean the positive ion emitters 121 and / or the negative ion emitters 131.

[0072] Those skilled in the art will appreciate that although Figure 1 Only four positive ion releasers 121 and four negative ion releasers 131 are shown, but the number of each of the positive ion releasers 121 and the negative ion releasers 131 may be more than four or less than four.

[0073] In some embodiments, the first surface 111 and the second surface 112 of the base 110 are coplanar, the positive ion emitter array 120 is linearly arranged on the first surface 111, and the negative ion emitter array 130 is also linearly arranged on the second surface 112. The positive ion emitter array 120 and the negative ion emitter array 130 are substantially parallel and spaced a certain distance apart. Figure 1 As shown, the first surface 111 and the second surface 112 of the base 110 may include recesses, and the positive ion releaser array 120 and the negative ion releaser array 130 are respectively disposed in the recesses on the first surface 111 and the second surface 112 .

[0074] Those skilled in the art will appreciate that although Figure 1 The base 110 shown in FIG is a rectangular parallelepiped, but the base 110 may also be at least one of a cylindrical, elliptical, and prismatic shape. It will be understood by those skilled in the art that although Figure 1 The first surface 111 and the second surface 112 are shown to be coplanar, but the first surface 111 and the second surface 112 of the base 110 can also be arranged opposite to each other, facing each other, at an angle, or connected to form a closed curved surface.

[0075] Furthermore, those skilled in the art will appreciate that although Figure 1 The positive ion emitter array 120 shown in FIG is arranged linearly on the first surface 111, but the positive ion emitter array 120 can also be arranged in at least one of an arc-shaped arrangement, a folded-line arrangement, a rectangular arrangement, a circular arrangement, and a polygonal arrangement on the first surface 111. Similarly, those skilled in the art will understand that although Figure 1 The negative ion releaser array 130 shown in the figure is arranged linearly on the second surface 112, but the negative ion releaser array 130 on the second surface 112 can also be arranged in at least one of an arc shape, a broken line shape, a rectangular shape, a circular shape, and a polygonal shape.

[0076] In some embodiments, the positive ion releaser 121 and the negative ion releaser 131 may include micro-nano conductive fiber clusters. The micro-nano conductive fiber clusters may include various suitable materials, such as one or more of carbon fiber, graphite fiber, metal fiber, glass fiber, ceramic fiber, short tungsten filaments, and carbon fiber-doped polypropylene or polyethylene filaments. In some embodiments, the micro-nano conductive fiber clusters may also include micro-nano fibers having a diameter in the range of 10 nanometers to 100 microns. In some embodiments, the micro-nano conductive fiber clusters may include micro-nano fibers in a number ranging from 1,000 to 100,000.

[0077] In some embodiments, the cleaning mechanism 140 includes a drive motor 141, a transmission mechanism 142, and a wiper 143. The transmission mechanism 142 may include a transmission rod, which is fixedly connected to the output end of the drive motor 141 and can move in an arc under the drive of the drive motor 141 to sweep across the end of the positive ion releaser 121 and / or the negative ion releaser 131. The wiper 143 is fixed to the transmission rod and cleans the positive ion releaser array 120 and / or the negative ion releaser array 130 under the drive of the transmission rod. In some embodiments, the electrode wiper 143 may include an insulating material sheet or insulating material block, such as a plastic sheet, a plastic block, a rubber sheet or a rubber block, etc.

[0078] Those skilled in the art will appreciate that the cleaning mechanism 140 may include a positive ion releaser cleaning mechanism for cleaning the positive ion releaser 121 and a negative ion releaser cleaning mechanism for cleaning the negative ion releaser 131. Figure 1 Only the cleaning mechanism of the positive ion releaser is shown, and the cleaning mechanism of the negative ion releaser can have a similar structure or the structure of any embodiment of the present disclosure. It can be understood by those skilled in the art that the transmission mechanism 142 can move linearly or in a curved manner under the drive of the drive motor 141. It can be understood by those skilled in the art that although Figure 1 Only one wiping sheet 143 is shown, but when the transmission rod is extended above the negative ion releaser 130 array, the number of wiping sheets 143 can be two. Driven by the same transmission mechanism 142 and drive motor 141, the two wiping sheets 143 clean and remove dust from the positive ion release array 120 and the negative ion release array 130 at the same time.

[0079] During use, dust and other impurities easily accumulate at the tips of the micro-nano conductive fiber clusters of the positive ion emitter 121 and the negative ion emitter 131, affecting ion generation efficiency. Driven by the motion (e.g., linear or arcuate) of the transmission mechanism 142, the electrode wiper 143 of the electrode cleaner 140 sweeps across the tips of the micro-nano conductive fiber clusters of the positive ion emitter 121 and the negative ion emitter 131, thereby cleaning the discharge tips and removing dust and other impurities, greatly improving ion generation efficiency and significantly extending the service life of the ion emitters.

[0080] In some embodiments, the cleaning mechanism 140 further includes a base 144 , the drive motor 141 is fixed on the base 144 , and the base 110 is detachably connected to the base 144 via bolts, making it convenient for the user to disassemble and replace the positive ion releaser array 120 and the negative ion releaser array 130 .

[0081] Those skilled in the art will appreciate that although Figure 1The base 110 and the base 144 shown in the figure are detachably connected together by bolts, but the base 110 can also be detachably connected to the base 144 by magnetic coupling, interlocking, snapping, etc., or can be fixed by bonding. The base 110 can also be formed as one piece with the base 144.

[0082] Figure 2 FIG. 2 shows a schematic structural diagram of a self-cleaning plasma generating device 200 according to other embodiments of the present disclosure. Figure 2 As shown, in other embodiments, the base 210 of the self-cleaning plasma generating device 200 is an inverted "U"-shaped structure with a groove in the middle, and the first surface 211 and the second surface 212 are arranged opposite to each other.

[0083] In other embodiments, the transmission mechanism 242 of the cleaning mechanism 240 may include a first connecting rod 2421, a second connecting rod 2422, a slide rail 2423, and a slider 2424 that cooperates with the slide rail 2423. The slide rail 2423 is disposed on both side walls of the groove, and one end of the first connecting rod 2421 is fixedly connected to the output end of the drive motor 241. One end of the second connecting rod 2422 is rotatably connected to the first connecting rod 2421, and the other end is connected to the slider 2424 disposed on the slide rail 2423, so that the slider 2424 slides along the slide rail 2423 under the drive of the drive motor 241.

[0084] In other embodiments, there are two wiping sheets 243 , which are respectively fixed on both sides of the slider 2424 , and can clean the positive ion releaser 221 arranged on the first surface 211 and the negative ion releaser arranged on the second surface 212 under the drive of the slider 2424 .

[0085] Those skilled in the art will appreciate that although Figure 2 The groove shown in FIG is provided with a slide rail 213 and a slider 214, but the groove may also be provided with a slide groove. Figure 2 Only two wiping sheets 243 are shown, but the number of wiping sheets 243 may be greater than two. In addition, the first surface 211 and the second surface 212 may also be arranged relative to each other, arranged in the same plane, arranged at an angle, or connected to form a closed curved surface.

[0086] Figure 3 FIG. 3 is a schematic structural diagram of a self-cleaning plasma generating device 300 according to other embodiments of the present disclosure. Figure 3As shown, in other embodiments, the base 310 of the self-cleaning plasma generator 300 is a dumbbell-shaped structure with larger diameters at both ends and a smaller diameter in the middle, and a hollow interior with an open top surface. The base 310 includes a mounting ring 313 disposed within the top cavity. The mounting ring 313 includes a first surface 311 and a second surface 312 that connect to form a closed curved surface. Positive ion emitters 321 and negative ion emitters 331 are evenly arranged on the mounting ring 313 along its circumference, both facing the inner wall of the base 310.

[0087] In other embodiments, the transmission mechanism 342 of the cleaning mechanism 340 includes a rotating shaft 3421 and a transmission rod 3422. One end of the rotating shaft 3421 is fixedly connected to the output end of the drive motor disposed within the base 310, and the other end is axially disposed within the mounting ring 313. The transmission rod 3422 is fixed to the other end of the rotating shaft 3421 perpendicular to the axial direction of the rotating shaft 3421. The number of wipers 343 can be one, two, or more. The wipers 343 are fixed to the end of the transmission rod 3422 and extend toward the positive ion releaser 321 and the negative ion releaser 331, contacting the ends of the positive ion releaser 321 and the negative ion releaser 331. When the drive motor drives the rotating shaft 3421 to rotate, the transmission rod 3422 drives the wipers 343 to rotate around the mounting ring 313, thereby cleaning the positive ion releaser 321 and the negative ion releaser 331.

[0088] Figure 4 Schematic diagrams of the structure of a self-cleaning plasma generating device 400 according to other embodiments of the present disclosure are shown. Figure 5 Show Figure 4 A structural diagram of the self-cleaning plasma generating device 400 from another angle. Figure 4 、 Figure 5 As shown, in some embodiments, the base 410 includes two mounting blocks 413a and 413b with rounded rectangular cross-sections, a first mounting bar 414, and a second mounting bar 415. The two mounting blocks 413a and 413b are arranged parallel to each other, and the drive motor 441 is arranged outside the mounting block 413b. The first mounting bar 414 and the second mounting bar 415 are installed between the two mounting blocks 413a and 413b and are parallel to each other, with the first mounting bar 414 located above the second mounting bar 415. The first surface 411 is arranged on the first mounting bar 414, and the positive ion emitter 421 is arranged on the first surface 411. The second surface 412 is arranged on the second mounting bar 415, and the negative ion emitter 431 is arranged on the second surface 412.

[0089] In some embodiments, the transmission mechanism 442 of the cleaning mechanism 440 includes a screw 4421 and a slider (e.g., a nut) 4422 that cooperates with the screw 4421. The screw 4421 is located between the first mounting bar 414 and the second mounting bar 415. One end of the screw 4421 passes through the mounting seat 413b and is fixedly connected to the output end of the drive motor 441. The other end is inserted into the mounting seat 413a and is rotatably connected to the mounting seat 413a via a bearing. The slider 4422, which is mounted on the screw 4421, includes a first side 4422-1 and a second side 4422-2. The wiping sheet 443a is fixed to the first side 4422-1 and extends toward the first surface 411. The wiping sheet 443b is fixed to the second side 4422-2 and extends toward the second surface 412. The driving motor 441 is a stepping motor, which can be used to drive the screw rod 4421 to rotate forward or reverse around its axis, thereby driving the slider 4422 to move, such as forward or backward, and the wiping sheets 443a and 443b then clean the electrodes of the positive ion releaser 421 and the negative ion releaser 422.

[0090] Those skilled in the art will appreciate that although Figure 4 and Figure 5 The first surface 411 and the second surface 412 are respectively located above and below the screw rod 4421, and the wiping piece provided on the first side 4422-1 and the wiping piece provided on the second side 4422-2 extend in opposite directions, but this is merely exemplary. The self-cleaning plasma generating device 400 may include the following: Figure 2 The base 410 is similar in structure to the base 210 of the self-cleaning plasma generating device 200 shown in FIG. Accordingly, the wiping sheet provided on the first side 4422-1 and the wiping sheet provided on the second side 4422-2 can be connected to the base 410. Figure 2 The wiper 243 shown is similarly configured. In addition, it will be appreciated by those skilled in the art that Figure 4 and Figure 5 The upper and lower directions are only relative directions introduced for the convenience of description. The self-cleaning plasma generating device 400 can be installed horizontally or vertically.

[0091] Figure 6 FIG. 1 shows a schematic structural diagram of a plasma gas purifier 1000 according to some embodiments of the present disclosure. Figure 6As shown, in some embodiments, a plasma gas purifier 1000 may include a self-cleaning plasma generating device 100 (or plasma generating devices 200, 300), a purifier housing 500, and an airflow driving device 600. The purifier housing 500 has an airflow inlet 501 and an airflow outlet 502. The airflow driving device 600 may be used to drive airflow from the airflow inlet 501 into the purifier housing 500, through the self-cleaning plasma generating module 100, and out of the purifier housing 500 from the airflow outlet 502. A plasma processing area may be formed within the purifier housing 500.

[0092] Those skilled in the art will appreciate that although Figure 6 Although only a cylindrical purifier housing 500 is shown in the figure, the purifier housing 500 may also be in at least one of an elliptical column, a rectangular parallelepiped column, and a prismatic column.

[0093] In some embodiments, the air flow inlet 501 of the purifier housing 500 is arranged along the side of the purifier housing 500. For example, the air flow inlet 501 can be arranged at the bottom of the purifier housing 500, and the air flow outlet 502 can be arranged at the top of the purifier housing 500, so that the air flow can form a bottom-up circulation and fully contact the plasma generating module. In some embodiments, for example Figure 2 or Figure 3 In the embodiment, the positive and negative ion releasers are arranged in back-to-back relation, which reduces the probability of premature recombination of positive and negative ions, thereby making the concentration of positive and negative ions in the airflow higher and achieving better sterilization and dust removal effects.

[0094] In some embodiments, the self-cleaning plasma generating module 100 is detachably fixed to the center of the bottom of the purifier housing 500, and the airflow driving device 600 is disposed above the self-cleaning plasma generating module 100 to form an annular plasma processing zone around the self-cleaning plasma generating module 100. The airflow driving device 600 causes the inhaled airflow to pass through the plasma processing zone in a rotating path, extending the residence time of the gas in the plasma processing zone and promoting the mixing of the gas with positive and negative ions, thereby increasing the probability of pathogenic particles adsorbing positive and negative ions or colliding with positive and negative ions, thereby achieving better sterilization and purification effects.

[0095] In some embodiments, the plasma gas purifier 1000 further includes a filter 700. The filter 700 is disposed at the air flow inlet 501 of the purifier housing 500. The filter 700 can be one or more of a primary filter, a medium efficiency filter, and a high efficiency filter.

[0096] Those skilled in the art will appreciate that although Figure 6Only one filter 700 is shown in the figure, but multiple or multi-layer filters can also be installed at the air flow inlet 501, such as a combination of primary and medium efficiency filters, or a combination of primary, medium and high efficiency filters.

[0097] Since the suspended particles in the air will attract each other due to the adsorption of positive and negative ions respectively, small particles will aggregate and become large particles. Therefore, the present disclosure adopts the use of filter 700 and self-cleaning plasma generator 100 in combination, which can effectively improve the interception efficiency of filter 700 and achieve the effect of rapid air purification. It can reduce the filtration level of the filter 700 used without affecting the filtering effect, reduce the air volume loss, reduce the energy consumption of the turbofan, and save energy and protect the environment. In order to further improve the filtering effect, a variety of filter screens can be used in combination according to actual needs. Moreover, the filter 700 is set at the air flow inlet 501, which can also reduce the degree of dust contamination of the electrodes of the self-cleaning plasma generator 100, reduce the working intensity of the cleaning mechanism, extend the service life of the equipment, and reduce the cost of the equipment. However, those skilled in the art will understand that the filter 700 can also be set at the air flow outlet 502.

[0098] Although Figure 6 The filter 700 shown is roughly annular or partially annular, but those skilled in the art will understand that the filter 700 can also adopt any other suitable shape, and can also adopt a suitable shape according to the shape and arrangement of the purifier housing 500 or the self-cleaning plasma generator 100.

[0099] When the airflow drive device 600 and the self-cleaning plasma generator 100 operate simultaneously, the self-cleaning plasma generator 100 generates a large amount of positive and negative ions, forming a high-concentration plasma treatment zone. Airflow is drawn into the purifier housing 500 through the airflow inlet 501. Some of the airborne particles and the germs they carry are intercepted by the filter 700. The remaining germs are effectively killed by the high concentration of positive and negative ions in the plasma treatment zone and then discharged through the airflow outlet 502. This repeated circulation of air through the plasma treatment zone effectively sterilizes the indoor air.

[0100] Furthermore, the high concentration of positive and negative ions generated by the self-cleaning plasma generator 100 can also diffuse into the space outside the plasma gas purifier 1000 along with the airflow flowing through the plasma treatment area, sterilizing viruses present in the air and on surfaces in the external space. Furthermore, these positive and negative ions that diffuse into the external space are also drawn back into the purifier housing 500 along with the airflow and adsorbed onto the filter 700, further killing the germs intercepted by the filter 700, preventing the growth of germs on the filter 700 and eliminating secondary contamination caused by the contaminated filter 700.

[0101] Those skilled in the art will appreciate that some embodiments of the present disclosure may be combined in whole or in part with all or in part with other embodiments. Figure 4 The cleaning mechanism 440 shown can be applied to Figure 1 The self-cleaning plasma generating device 100 or Figure 2 The self-cleaning plasma generating device 200 shown. For another example, Figure 2 The base 210 and the positive and negative ion emitter array shown can be used in Figure 1 The self-cleaning plasma generating device 100 or Figure 4 The self-cleaning plasma generating device 400 shown. For another example, Figure 1 The cleaning mechanism 140 shown can be applied to Figure 2 The self-cleaning plasma generating device 200 shown, Figure 3 The self-cleaning plasma generating device 300 shown, or Figure 4 The self-cleaning plasma generating device 400 is shown.

[0102] It should be pointed out that the above are only preferred embodiments of the present disclosure and are not intended to limit the present disclosure. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present disclosure should be included in the scope of protection of the present disclosure.

Claims

1. A self-cleaning plasma generating device, characterized in that: include: a base having a first surface and a second surface; a positive ion releaser array, disposed at the first surface of the base and comprising a plurality of positive ion releasers for releasing positive ions; a negative ion releaser array, disposed on the second surface of the base and comprising a plurality of negative ion releasers for releasing negative ions; as well as One or more cleaning mechanisms, used to clean the positive ion releaser and the negative ion releaser, the cleaning mechanism comprising a drive motor, a transmission mechanism and one or more wiping sheets, wherein: The transmission mechanism is connected to the output end of the drive motor and moves under the drive of the drive motor. The transmission mechanism includes: a first connecting rod, one end of which is connected to an output end of the driving motor; a second connecting rod, one end of the second connecting rod being rotatably connected to the other end of the first connecting rod; Slide rails; and a slider, the slider being slidably disposed on the slide rail and connected to the other end of the second connecting rod so as to slide along the slide rail under the drive of the drive motor; The one or more wiping sheets are disposed on a first side of the slider corresponding to the first surface and a second side corresponding to the second surface, and are used to clean the positive ion releaser array and the negative ion releaser array respectively.

2. A self-cleaning plasma generating device, characterized in that: include: a base having a first surface and a second surface; a positive ion releaser array, disposed at the first surface of the base and comprising a plurality of positive ion releasers for releasing positive ions; a negative ion releaser array, disposed on the second surface of the base and comprising a plurality of negative ion releasers for releasing negative ions; as well as One or more cleaning mechanisms, used to clean the positive ion releaser and the negative ion releaser, the cleaning mechanism comprising a drive motor, a transmission mechanism and one or more wiping sheets, wherein: The transmission mechanism is connected to the output end of the drive motor and moves under the drive of the drive motor. The transmission mechanism includes: a screw rod, one end of which is connected to the output end of the drive motor so as to rotate around its axis under the drive of the drive motor; a slider, sleeved on the screw rod and matched with the screw rod, and moving along the length direction of the screw rod as the screw rod rotates, wherein the one or more wipers are arranged on the slider; The one or more wiping sheets are disposed on a first side of the slider corresponding to the first surface and a second side corresponding to the second surface, and are used to clean the positive ion releaser array and the negative ion releaser array respectively.

3. The self-cleaning plasma generating device according to claim 1 or 2, characterized in that: The first surface and the second surface of the base are arranged opposite to each other, facing each other, coplanarly, at an angle, or connected to form a closed curved surface.

4. The self-cleaning plasma generating device according to claim 3, characterized in that: The positive ion emitter array includes at least one of the following arrangements at the first surface: Linear arrangement, arc arrangement, broken line arrangement, circular arrangement, polygonal arrangement; and / or The negative ion releaser array includes at least one of the following arrangements at the second surface: Linear arrangement, arc arrangement, broken line arrangement, circular arrangement, polygonal arrangement.

5. The self-cleaning plasma generating device according to claim 1 or 2, characterized in that: The positive ion releaser and the negative ion releaser include micro-nano conductive fiber clusters, and the micro-nano conductive fiber clusters include at least one of the following: One or more of carbon fiber, metal fiber, glass fiber, ceramic fiber, short tungsten wire, carbon fiber-doped polypropylene or polyethylene filament; Micro-nanofibers numbering in the range of 1,000 to 100,000; or Micro-nano fibers with diameters ranging from 10 nanometers to 100 micrometers.

6. The self-cleaning plasma generating device according to claim 1 or 2, characterized in that: The one or more cleaning mechanisms include: a positive ion releaser cleaning mechanism, for cleaning the positive ion releaser; and The negative ion releaser cleaning mechanism is used to clean the negative ion releaser.

7. The self-cleaning plasma generating device according to claim 1 or 2, characterized in that: The transmission mechanism is used to drive the one or more wiping sheets to move linearly or curvilinearly to sweep across the ends of the positive ion releaser and / or the negative ion releaser.

8. The self-cleaning plasma generating device according to claim 2, characterized in that: The first surface and the second surface are respectively located above and below the screw rod. The wiping sheet disposed on the first side and the wiping sheet disposed on the second side extend in opposite directions.

9. The self-cleaning plasma generating device according to claim 1 or 2, characterized in that: The base is in the shape of at least one of a cylinder, an ellipse, and a prism.

10. A plasma gas purifier, characterized in that: include: a purifier housing having an air flow inlet and an air flow outlet; One or more self-cleaning plasma generating devices according to any one of claims 1 or 2, arranged in the purifier housing; as well as An airflow driving device is used to drive the airflow to enter from the airflow inlet and be discharged from the airflow outlet after passing through one or more self-cleaning plasma generating devices.

11. The plasma gas purifier according to claim 10, characterized in that: Also included is a plasma processing zone located within the purifier housing, wherein one or more of the self-cleaning plasma generating devices release plasma into the plasma processing zone.

12. The plasma gas purifier according to claim 10, characterized in that: It also includes a filter screen, which is arranged at the air flow inlet of the purifier housing. The filter screen includes one or more of a primary filter screen, a medium efficiency filter screen and a high efficiency filter screen.

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