CN117015127A - Spiral electrode structure, plasma generating device and air purifier - Google Patents
Spiral electrode structure, plasma generating device and air purifier Download PDFInfo
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- CN117015127A CN117015127A CN202210806746.6A CN202210806746A CN117015127A CN 117015127 A CN117015127 A CN 117015127A CN 202210806746 A CN202210806746 A CN 202210806746A CN 117015127 A CN117015127 A CN 117015127A
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- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 3
- 238000004887 air purification Methods 0.000 description 3
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Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
- H05H1/00—Generating plasma; Handling plasma
- H05H1/24—Generating plasma
- H05H1/26—Plasma torches
- H05H1/32—Plasma torches using an arc
- H05H1/34—Details, e.g. electrodes, nozzles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/30—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by ionisation
Abstract
The invention relates to a spiral electrode structure, a plasma generating device and an air purifier, wherein the spiral electrode structure comprises: an insulating support; the first external electrode is spirally wound on the insulating support frame and is suitable for grounding; and a second external electrode including an electrode body and a discharge tip formed on the electrode body, the second external electrode spirally surrounding the insulating support frame and spaced apart from the first external electrode, the second external electrode having a pitch equal to that of the first external electrode, the second external electrode being adapted to be connected to a direct current power source. Because the curvature radius of the discharge tip is smaller, the second external electrode can generate corona discharge under lower voltage, initial electrons generated by the corona discharge can be used as excited electrons for glow power generation, and the excited electrons can promote glow discharge to be generated between the first external electrode and the second external electrode, so that the corona onset voltage of the spiral electrode structure is effectively reduced. In addition, the spiral electrode structure of the invention has simple structure, easy manufacture and convenient implementation, popularization and application.
Description
Technical Field
The invention relates to the technical field of air purification, in particular to a spiral electrode structure, a plasma generating device and an air purifier.
Background
With the development of social economy, the demands of residents on house interior decoration are also increasing. The use of large-scale decoration materials and building materials leads the concentration of formaldehyde, TVOC and other pollutants in indoor air to exceed the standard, and has influence on the health of people. At present, the purification method of indoor air pollution comprises a ventilation method, a plant purification method, a microbiological method, a physical and chemical adsorption method, a plasma method and the like.
Because high-energy electrons, excited particles, active groups and the like exist in low-temperature plasma, and harmful gases can be effectively catalytically degraded by utilizing plasma discharge, the low-temperature plasma is increasingly applied to the fields of air purification and the like. The plasma discharge comprises corona discharge and glow discharge, and the glow discharge has a large discharge area and a high plasma density, so that the plasma discharge has a good application prospect. In general, glow discharge plasma is often generated under a low-pressure or rare gas atmosphere.
The plasma generating device can efficiently remove gaseous pollutants such as formaldehyde, TVOC and the like in the air by using plasma generated by glow discharge. However, the plasma generating device in the prior art generally can only generate glow discharge under vacuum, and the corona onset voltage of the glow discharge is high (generally more than 1 kilovolt). The plasma generating device has the advantages of severe use condition, high power consumption and difficult popularization and application.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is to overcome the defects of severe use condition and high power consumption of the plasma generating device in the prior art, so as to provide the spiral electrode structure, the plasma generating device and the air purifier which can generate glow discharge in an atmospheric pressure environment, have low corona onset voltage and low power consumption.
In order to solve the above problems, a first aspect of the present invention provides a spiral electrode structure comprising: an insulating support; the first external electrode is spirally wound on the insulating support frame and is suitable for grounding; and a second external electrode including an electrode body and a discharge tip formed on the electrode body, the second external electrode spirally surrounding the insulating support frame and spaced apart from the first external electrode, the second external electrode having a pitch equal to that of the first external electrode, the second external electrode being adapted to be connected to a direct current power source.
Further, the discharge tips are plural and radially distributed on the electrode body.
Further, the discharge tip is a metal spike or a carbon fiber.
Further, the electrode body is of a conductive metal structure.
Further, the electrode body comprises at least two metal wires spirally wound with each other, the discharge tip is a plurality of carbon fibers clamped between the at least two metal wires, and an included angle is formed between the extending direction of the carbon fibers and the extending direction of the metal wires.
Further, the second external electrodes and the first external electrodes are uniformly and alternately surrounded on the insulating support frame.
Further, the distance between the second external electrode and the first external electrode along the axial direction of the insulating support frame is L1, and L1 is more than or equal to 1mm and less than or equal to 100mm.
Further, the number of the second external electrodes is two, and the first external electrode is positioned between the two first external electrodes.
Further, the distance between the second external electrode and the first external electrode along the axial direction of the insulating support frame is L2, and L2 is more than or equal to 1mm and less than or equal to 100mm.
Further, the first outer electrode is an electrode plate spirally encircling the insulating support frame, and an included angle is formed between a tangent line of any point on the electrode plate and the extending direction of the insulating support frame.
Further, an accommodating cavity extending along the length direction of the insulating support frame is formed in the insulating support frame, and the spiral electrode structure further comprises an inner electrode arranged in the accommodating cavity, wherein the inner electrode is suitable for being connected with an alternating current power supply.
Further, the inner electrode is made of metal;
and/or the material of the insulating support frame is polytetrafluoroethylene.
A second aspect of the invention relates to a plasma-generating device comprising a spiral electrode structure according to the first aspect of the invention.
A third aspect of the invention relates to an air cleaner comprising a spiral electrode structure according to the first aspect of the invention.
The invention has the following advantages:
as can be seen from the above technical solutions, the spiral electrode structure of the first aspect of the present invention mainly includes an insulating support frame, a first external electrode and a second external electrode. The second external electrode is arranged to comprise an electrode main body and a discharge tip formed on the electrode main body, and the second external electrode can generate corona discharge under a lower voltage due to the smaller curvature radius of the discharge tip, initial electrons generated by the corona discharge can be used as excited electrons generated by glow power generation, and the excited electrons can promote glow discharge to be generated between the first external electrode and the second external electrode, so that the corona onset voltage of the spiral electrode structure is effectively reduced. In addition, the first external electrode and the second external electrode are respectively spirally and circumferentially arranged on the surface of the insulating support frame, and the insulating support frame can support the first external electrode and the second external electrode, so that the wire diameters of the first external electrode and the second external electrode can be made thinner and are not easy to break, and the distance is smaller, and the corona onset voltage of glow discharge can be further reduced. Therefore, the spiral electrode structure can generate corona discharge and glow discharge in the atmospheric pressure environment, generates less ozone, and has good sterilization effect. In addition, the spiral electrode structure of the first aspect of the invention has the advantages of simple structure, convenient manufacture, practicality, safety, reliability and convenient implementation, popularization and application.
2. The plasma purifying device of the second aspect of the invention comprises or uses the spiral electrode structure of the first aspect of the invention, so that the plasma purifying device has the beneficial effects of the spiral electrode structure of the first aspect of the invention, namely, corona discharge and glow discharge can be generated in an atmospheric pressure environment, and the corona discharge and glow discharge generating device is low in corona onset voltage, low in power consumption and convenient to popularize and apply.
3. The air purifier of the third aspect of the invention comprises or uses the spiral electrode structure of the first aspect of the invention, so that the air purifier has the beneficial effects of the spiral electrode structure of the first aspect of the invention, namely, corona discharge and glow discharge can be generated in an atmospheric pressure environment, corona onset voltage is low, power consumption is low, and the air purifier is convenient to popularize and apply.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
Fig. 1 shows a spiral electrode structure of embodiment 1 of the present invention;
fig. 2 is a use state diagram of the spiral electrode structure of embodiment 1 of the present invention.
Reference numerals illustrate:
1. a spiral electrode structure; 11. an inner electrode; 12. a first external electrode; 13. an insulating support; 14. a second external electrode; 141. an electrode main body; 142. and a discharge tip.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In addition, the technical features of the different embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.
Fig. 1 shows a spiral electrode structure of embodiment 1 of the present invention. Fig. 2 is a use state diagram of the spiral electrode structure of embodiment 1 of the present invention. As shown in fig. 1 and 2, the spiral electrode structure 1 of the present embodiment mainly includes an insulating support frame 13, a first external electrode 12, and a second external electrode 14. Wherein the first external electrode 12 is spirally wound on the insulating support 13 and is adapted to be grounded. The second external electrode 14 includes an electrode body 141 and a discharge tip 142 formed on the electrode body 141. The second external electrode 14 is spirally wound around the insulating support 13 and spaced apart from the first external electrode 12. The second outer electrode 14 has the same pitch as the first outer electrode 12. The second external electrode 14 is adapted to be connected to a direct current source. The first external electrode 12 may be optionally formed with the discharge tip 142 thereon, or may be optionally provided without the discharge tip 142.
As can be seen from the above technical solutions, the spiral electrode structure 1 of the present embodiment mainly includes an insulating support 13, a first external electrode 12 and a second external electrode 14. Wherein the second external electrode 14 is provided to include an electrode body 141 and a discharge tip 142 formed on the electrode body 141, and since the radius of curvature of the discharge tip 142 is small, the second external electrode 14 can generate corona discharge at a low voltage, initial electrons generated by the corona discharge can act as excited electrons of glow discharge, and the excited electrons can promote glow discharge between the first external electrode 12 and the second external electrode 14, thereby effectively reducing the corona onset voltage of the spiral electrode structure 1. In addition, since the spiral electrode structure 1 of the embodiment spirally surrounds the first external electrode 12 and the second external electrode 14 on the surface of the insulating support frame 13, the insulating support frame 13 can support the first external electrode 12 and the second external electrode 14, so that the wire diameters of the first external electrode 12 and the second external electrode 14 can be made thinner and not easy to break, and the distance is smaller, thereby further reducing the corona onset voltage of glow discharge. Therefore, the spiral electrode structure 1 of the embodiment can generate corona discharge and glow discharge in the atmospheric pressure environment, generates little ozone, and has good sterilization and disinfection effects and organic matter removal effects. In addition, the spiral electrode structure 1 of this embodiment has a simple structure, is convenient to manufacture, is practical, safe and reliable, and is convenient to implement, popularize and apply.
The discharge tip 142 may optionally be disposed toward the first external electrode 12, and preferably, in this embodiment, the discharge tip 142 is a plurality of discharge tips and is radially disposed on the electrode body 141, so that a large number of excited electrons can be generated around the second external electrode 14, which is advantageous in reducing the corona onset voltage of the glow discharge. The discharge tip 142 may be selected from a metal spike or a carbon fiber. Preferably, in the present embodiment, the discharge tip 142 is a carbon fiber, and since the carbon fiber is a semiconductor material, the electron escape capability of the carbon fiber per unit volume or unit surface area is relatively weak compared to that of a general metal, and thus the electron release amount can be effectively controlled during the discharge process, thereby preventing the discharge from being too severe. And because the single filament of the carbon fiber has a very small curvature radius and the diameter of a single filament is only 7-10 mu m, the discharge tip 142 made of the carbon fiber has good corona effect and very low corona onset voltage, and can provide excited electrons for glow discharge by using the low initial corona voltage.
The electrode body 141 is preferably, but not limited to, a conductive metal structure or a carbon fiber, etc., for example, in the present embodiment, the electrode body 141 is a conductive metal structure, preferably made of a nano-sized conductive material, such as nano-sized silver-plated copper wire or silver wire. The problem that the carbon fiber discharge brings easily produces the burr can be solved by adopting the conductive metal structure to replace the carbon fiber discharge, the phenomenon of burr point discharge breakdown is avoided, the service life of the second external electrode 14 is prolonged, and meanwhile, the problem that excessive idle work is produced by the burr discharge and the discharge efficiency is influenced is also avoided.
When the discharge tip 142 is selected to be a metal spike, the discharge tip 142 may be optionally integrally formed with the electrode body 141. Preferably, in the present embodiment, the electrode body 141 includes at least two wires spirally wound with each other, and the discharge tip 142 is a plurality of carbon fibers interposed between the at least two wires, and an extending direction of the carbon fibers forms an angle with an extending direction of the wires. Preferably, the extending direction of the carbon fibers is perpendicular to the extending direction of the wires.
Preferably, in the present embodiment, the second external electrodes 14 and the first external electrodes 12 are uniformly and alternately surrounded on the insulating support 13. The glow discharge on the insulating support 13 between the first and second external electrodes 12 and 14 can be promoted to be more uniform. The distance between the second external electrode 14 and the first external electrode 12 along the axial direction of the insulating support frame 13 is L1, and L1 is more than or equal to 1mm and less than or equal to 100mm. The above-mentioned interval range is the optimum range obtained by a large number of experiments, and when L1 is in the above-mentioned range, the glow discharge effect is not affected by the excessively long distance, and the discharge is not developed into a severe wire discharge. When the selected pitches are different, the voltage values of the applicable direct current power supply and the applicable alternating current power supply are also different. For example, in the present embodiment, the interval between the first external electrode 12 and the second external electrode 14 is 2mm. Optionally, the diameter of the insulating support frame is D10, and D10 is more than or equal to 0.5mm and less than or equal to 80mm. Preferably 1.2mm.
Preferably, the negative electrode of the dc power supply is connected to the second external electrode 14, and the positive electrode of the dc power supply is grounded, so that the glow discharge generated in this case is more uniform than that generated in the manner that the positive electrode is grounded to the negative electrode connected to the second external electrode 14, wire discharge is not easy to generate, the requirements for manufacturing the electrode are lower, the safety of the spiral electrode structure 1 is improved, the rejection rate of the electrode is reduced, and the manufacturing cost of the spiral electrode structure 1 is reduced. Meanwhile, when the negative electrode of the direct current power supply is connected with the second external electrode 14 and the positive electrode of the direct current power supply is grounded, the second external electrode 14 can generate a large amount of negative ions in the discharging process, and the effects of sterilizing, disinfecting and freshening air are good.
The number of the second external electrodes 14 may be one or two. When the number of the second external electrodes 14 is two, the first external electrode 12 is preferably located between the two first external electrodes 12. A glow discharge can be formed between the second external electrode 14 and the first external electrode 12 on both sides. The two second external electrodes 14 may alternatively be connected to the same high voltage dc power supply or may alternatively be connected to different high voltage dc power supplies. Preferably, the two second external electrodes 14 are connected with the same high-voltage direct current power supply, the first external electrodes 12 and the second external electrodes 14 are uniformly and alternately distributed on the insulating support frame 13, one power supply can be saved, and the installation mode is simpler. The distance between the second external electrode 14 and the first external electrode 12 along the axial direction of the insulating support frame 13 is L2, and L2 is more than or equal to 1mm and less than or equal to 100mm. The above-mentioned interval range is the optimum range obtained through a large number of experiments, and when L2 is in the above-mentioned range, the glow discharge effect is not affected by the too long distance, and the discharge is not developed into a severe wire discharge. When the selected pitches are different, the voltage values of the applicable direct current power supply and the applicable alternating current power supply are also different. For example, in the present embodiment, the interval between the first external electrode 12 and the second external electrode 14 is 0.5mm to 5mm.
Preferably, the negative electrode of the dc power supply is connected to the second external electrode 14, and the positive electrode of the dc power supply is grounded, so that the glow discharge generated in this case is more uniform than that generated in the manner that the positive electrode is grounded to the negative electrode connected to the second external electrode 14, wire discharge is not easy to generate, the requirements for manufacturing the electrode are lower, the safety of the spiral electrode structure 1 is improved, the rejection rate of the electrode is reduced, and the manufacturing cost of the spiral electrode structure 1 is reduced. Meanwhile, when the negative electrode of the direct current power supply is connected with the second external electrode 14 and the positive electrode of the direct current power supply is grounded, the second external electrode 14 can generate a large amount of negative ions in the discharging process, and the effects of sterilizing, disinfecting and freshening air are good.
In this embodiment, the first external electrode 12 may be made of a conductive wire with an insulating layer, or may be made of a nano-scale conductive material, such as nano-scale silver-plated copper wire or silver wire. In a preferred embodiment, the first external electrode 12 is an electrode plate spirally wound on the insulating support frame 13, and a tangent line at any point on the electrode plate forms an included angle with the extending direction of the insulating support frame 13, so that glow discharge in space can be generated between the adjacent first external electrode 12 and the second external electrode 14, and the discharge area of the spiral electrode structure 1 is increased. Since an electric field is formed between the first external electrode 12 and the second external electrode 14, when the air flow enters between the first external electrode 12 and the second external electrode 14, impurities carried in the air flow can be charged when passing through the discharge region, and then adhere to the surface of the electrode sheet under the action of the electric field, so that the spiral electrode structure 1 also has a dust collection effect, and the air purification effect of the spiral electrode structure 1 of the embodiment is further improved.
Preferably, in the present embodiment, the insulating support 13 has a receiving cavity formed therein, which extends along the length direction of the insulating support 13, and the spiral electrode structure 1 further includes an inner electrode 11 disposed in the receiving cavity, the inner electrode 11 being adapted to be connected to an ac power source. When the inner electrode 11 is connected to an ac power supply, after the initial electrons generated by the corona discharge of the second outer electrode 14, the inner electrode 11 and the first outer electrode 12 can use the initial electrons as excited electrons of the glow discharge, so that the glow discharge is performed by using a contact end, and the initial electron density is increased by using dielectric barrier discharge, the inner electrode 11 and the first outer electrode 12 can be discharged in an atmospheric pressure environment, and the corona onset voltage is low, and the discharge can be generated around the first outer electrode 12. Therefore, the spiral electrode structure 1 greatly reduces the voltage requirement of discharge, has lower corona onset voltage, lower power consumption, safety and stability, is not easy to generate wire discharge, can simultaneously generate corona discharge and glow discharge, has the effects of sterilizing and removing organic matters in the air, and can also reduce the ozone amount generated in the discharge process.
In this embodiment, the material of the inner electrode 11 is preferably a conductive metal such as copper or silver. The cross section of the inner electrode 11 is circular, elliptical, rectangular or other polygonal shape. Preferably, the inner electrode 11 has a circular cross section. Preferably, the inner electrode 11 is silver-plated copper wire, and the inner electrode 11 has better conductive effect by silver-plated copper wire. The diameter of the inner electrode 11 is D10, D10 is more than or equal to 0.1mm and less than or equal to 100mm.
The material of the insulating support 13 is preferably, but not limited to, polytetrafluoroethylene, polyamide, aramid or the like. Polytetrafluoroethylene is preferred. The thickness of the polytetrafluoroethylene layer is D4, and D4 is more than or equal to 0.03mm and less than or equal to 3mm. When the thickness of the polytetrafluoroethylene insulating support 13 is in the above range, the spiral electrode structure 1 has a low corona onset voltage, while the insulating support 13 is less likely to be broken down. For example, in the present embodiment, the insulating support 13 is selected to be polytetrafluoroethylene with a thickness of 0.2mm, and the polytetrafluoroethylene may be uniformly sprayed on the outer surface of the inner electrode 11 by a spraying process to form the insulating support 13.
Embodiment 2 relates to a plasma generating device comprising the spiral electrode structure 1 provided in embodiment 1.
Example 3
Embodiment 3 relates to an air cleaner, which is characterized by comprising the spiral electrode structure 1 provided in embodiment 1.
In summary, the spiral electrode structure 1 of embodiment 1, the plasma generating device of embodiment 2 and the air purifier of embodiment 3 can overcome the defects of severe use condition and large power consumption of the plasma generating device in the prior art, can generate corona discharge and glow discharge in an atmospheric pressure environment, greatly reduces the voltage requirement of discharge, has lower power consumption, is safe and stable, is not easy to generate wire discharge, and can reduce the ozone amount generated in the discharge process.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the invention.
Claims (14)
1. A spiral electrode structure, comprising:
an insulating support (13);
a first external electrode (12) spirally wound on the insulating support frame (13) and adapted to be grounded;
-a second external electrode (14) comprising an electrode body (141) and a discharge tip (142) formed on said electrode body (141), said second external electrode (14) being helically wound around said insulating support (13) and spaced apart from said first external electrode (12), said second external electrode (14) being of equal pitch to said first external electrode (12), said second external electrode (14) being adapted to be connected to a direct current source.
2. The spiral electrode structure of claim 1, wherein the discharge tips (142) are plural and radially distributed on the electrode body (141).
3. The spiral electrode structure of claim 2, wherein the discharge tip (142) is a metal spike or a carbon fiber.
4. The spiral electrode structure of claim 1, wherein the electrode body (141) is a conductive metal structure.
5. The spiral electrode structure of claim 4, wherein the electrode body (141) comprises at least two wires spirally wound around each other, the discharge tip (142) is a plurality of carbon fibers sandwiched between at least two of the wires, and an extending direction of the carbon fibers forms an angle with an extending direction of the wires.
6. The spiral electrode structure according to claim 1, characterized in that the second external electrodes (14) and the first external electrodes (12) are uniformly and alternately surrounded on the insulating support (13).
7. The spiral electrode structure according to claim 6, wherein a distance between the second external electrode (14) and the first external electrode (12) in an axial direction along the insulating support (13) is L1, and L1 is 1mm or less and 100mm or less.
8. The spiral electrode structure according to claim 1, wherein the number of the second external electrodes (14) is two, and the first external electrode (12) is located between the two first external electrodes (12).
9. The spiral electrode structure according to claim 8, wherein a distance between the second external electrode (14) and the first external electrode (12) in an axial direction along the insulating support (13) is L2, and L2 is 1 mm-100 mm.
10. The spiral electrode structure according to any one of claims 1-9, wherein the first external electrode (12) is an electrode sheet spirally wound on the insulating support (13), and a tangent line at any point on the electrode sheet forms an angle with the extending direction of the insulating support (13).
11. The spiral electrode structure according to any one of claims 1-9, characterized in that a receiving cavity extending in the length direction of the insulating support (13) is formed in the insulating support (13), the spiral electrode structure (1) further comprising an inner electrode (11) arranged in the receiving cavity, the inner electrode (11) being adapted to be connected to an alternating current power source.
12. The spiral electrode structure according to claim 11, characterized in that the material of the inner electrode (11) is metal;
and/or the material of the insulating support frame (13) is polytetrafluoroethylene.
13. Plasma-generating device, characterized in that it comprises a spiral electrode structure (1) according to any one of claims 1 to 12.
14. An air purifier, characterized by comprising a spiral electrode structure (1) according to any one of claims 1 to 12.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221058674 | 2022-04-29 | ||
| CN2022210586743 | 2022-04-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117015127A true CN117015127A (en) | 2023-11-07 |
Family
ID=88573329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210806746.6A Pending CN117015127A (en) | 2022-04-29 | 2022-07-08 | Spiral electrode structure, plasma generating device and air purifier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117015127A (en) |
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2022
- 2022-07-08 CN CN202210806746.6A patent/CN117015127A/en active Pending
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