CN115200141A

CN115200141A - Plasma generating device and air purifier

Info

Publication number: CN115200141A
Application number: CN202210979212.3A
Authority: CN
Inventors: 董双幸; 马明宇; 王铭昭; 曾焕雄; 王墅
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2022-08-16
Filing date: 2022-08-16
Publication date: 2022-10-18

Abstract

The utility model relates to a plasma generating device and air purifier, specifically include the main part, first ionization utmost point and second ionization utmost point, main part dress inside has the chamber that holds, first ionization utmost point is located and is held the intracavity, the second ionization utmost point is located and is held outside the chamber, first ionization utmost point and second ionization utmost point are constructed and are used for producing the plasma electric field, and still have the heat field that can produce heat in the plasma generating device, the region in place that the heat field distributes covers the plasma electric field at least. Therefore, the plasma generating device generates a plasma electric field around the main body, high-concentration plasma exists in the plasma electric field, and the air is disinfected and purified, so that the air is sterilized and purified. High temperature heating makes the ozone that produces directly decompose among the purification process that disinfects, avoids it to spill over polluted air in the air to realized the environmental protection when disinfecting, avoided discharging ozone to the external world.

Description

Plasma generating device and air purifier

Technical Field

The application relates to the technical field of air purification, in particular to a plasma generating device and an air purifier.

Background

During the development and progress of civilization, human beings are continuously invaded by various viruses and bacteria, and the existence of the viruses and the bacteria seriously influences the survival and development of the human beings. In consideration of the high transmissibility of bacteria and viruses, the development of special disinfection and sterilization products aiming at various living scenes and the addition of disinfection and sterilization functions in the traditional household appliances become important technical research and development directions selected by a plurality of household appliance manufacturers in the post epidemic situation era.

As a sterilization technology capable of efficiently and conveniently destroying and decomposing pollutants, a plasma air sterilization and purification technology is receiving more and more attention from various scholars and becomes a high-tech technology with development prospect in the field of environmental pollution treatment.

However, the plasma sterilization technology in the air environment generates more ozone during discharging, and the ozone is discharged into the air, which causes pollution to the atmospheric environment.

Disclosure of Invention

Based on this, this application has proposed a plasma generating device and air purifier to the problem that current plasma sterilization technique produced ozone emission to the air easily, and this plasma generating device and air purifier have bactericidal effect well and can avoid discharging the technological effect that ozone pollutes the atmospheric environment in the air.

A plasma generating apparatus comprising:

a body having an accommodating chamber therein;

the plasma generator comprises a first ionization electrode and a second ionization electrode, wherein the first ionization electrode is arranged in an accommodating cavity, the second ionization electrode is arranged outside the accommodating cavity, and the first ionization electrode and the second ionization electrode are used for generating a plasma electric field;

the plasma generating device is also internally provided with a heat field capable of generating heat, and the region distributed by the heat field at least covers the region of the plasma electric field.

In one embodiment, the first ionizing electrode is configured to provide heat to the thermal field. .

In one embodiment, the plasma generating device further comprises a high voltage output terminal and a low voltage output terminal;

the high-voltage output end is electrically connected with the second ionization electrode, and the low-voltage output end is electrically connected with the first ionization electrode.

In one embodiment, the plasma generating apparatus further comprises a power module electrically connected to the first ionizing electrode for controlling the first ionizing electrode to generate heat.

In one embodiment, the first ionizing electrode is made of a carbon fiber material.

In one embodiment, the body is cylindrical and the first ionizing electrode extends along the axis of the cylinder.

In one embodiment, the second ionizing electrode is disposed in parallel with respect to the first ionizing electrode.

In one embodiment, the first ionizing electrode extends helically about the central axis of the cylinder.

In one embodiment, the second ionization electrode is disposed on a surface of the body facing away from the receiving cavity.

According to another aspect of the present application, there is provided an air purifier, comprising a housing and the plasma generating device of the air conditioner in any of the above embodiments, wherein the plasma generating device is disposed in the housing.

In one embodiment, the shell is provided with a purifying space and an air inlet and an air outlet which are communicated with the purifying space; the plasma generating device is arranged in the purifying space.

According to the plasma generating device, the first ionization electrode and the second ionization electrode are electrified to form a plasma electric field, strong oxidizing substances such as hydroxyl and nitrogen oxide in high-concentration plasma components in the plasma electric field directly react with pollutants in the air such as formaldehyde, toluene, ammonia gas and hydrogen sulfide to degrade the pollutants into carbon dioxide and water, the problems of gaseous pollutants and peculiar smell gas in the air are solved, the air is sterilized and purified, the plasma generating device is further provided with a thermal field, and the region where the thermal field is distributed at least covers the region where the plasma electric field is located, so that ozone generated by air ionization in the plasma electric field is directly decomposed by heat in the thermal field, the ozone is prevented from leaving the plasma electric field and overflowing into the air, the environment is protected while sterilization is realized, and ozone is prevented from being discharged to the outside so as to protect the environment.

Drawings

Fig. 1 is a schematic structural diagram of a plasma generation apparatus according to an embodiment of the present disclosure;

FIG. 2 is a schematic perspective view of the plasma generator shown in FIG. 1;

FIG. 3 is a schematic view of a portion of the plasma generator shown in FIG. 1;

FIG. 4 is a schematic view of a portion of the plasma generator shown in FIG. 1;

fig. 5 is a schematic structural diagram of an air purifier according to an embodiment of the present application.

Reference numerals: 1000. an air purifier; 100. a plasma generating device; 10. a main body; 13. an accommodating chamber; 20. a first ionizing electrode; 21. a first connection end; 22. a second connection end; 30. a second ionization electrode; 40. a power supply module; 51. a high voltage output terminal; 52. a low voltage output terminal; 200. a housing; 210. purifying the space; 220. an air inlet; 230. and (4) an air outlet.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of embodiment in many different forms than those described herein and those skilled in the art will be able to make similar modifications without departing from the spirit of the application and therefore the application is not limited to the specific embodiments disclosed below.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "above," and "over" a second feature may be directly on or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature "under," "beneath," and "under" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. As used herein, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are for purposes of illustration only and do not denote a single embodiment.

As described in the background art, the air purifier is a product for sterilizing and purifying air as the name suggests, the sterilization method adopted by the existing air purifier is roughly divided into four methods, namely a heating method, a chemical reagent method, a light method and a filtering method, the sterilization methods have many defects of thermal injury, long time consumption, chemical reagent residue, cell mutation initiation and the like, and the air purifier is not suitable for large-scale popularization and application due to the use environment.

As a high and new technology with extremely strong potential advantages in the field of environmental pollution treatment, an air purifier adopting a plasma technology is produced, and the plasma sterilization technology mainly causes damage to DNA and cell membranes in cells and further causes bacterial inactivation through generating a large amount of active particles, free radicals and ultraviolet light in a discharge process. Compared with the traditional killing mode, the plasma killing technology has the advantages of capability of realizing bacterial killing at normal temperature, no chemical substance residue, simple and convenient operation and the like.

The main working principle of the plasma generator is that low voltage is boosted to positive high voltage and negative high voltage through a booster circuit, air (mainly oxygen) is ionized by the positive high voltage and the negative high voltage to generate a large amount of positive ions and negative ions, and the number of the negative ions is larger than that of the positive ions. The positive ions and the negative ions generated by the plasma generating device simultaneously generate huge energy release at the moment of neutralizing positive and negative charges in the air, so that the change of the surrounding bacterial structure or the energy conversion is caused, bacteria are killed, and the sterilization and purification effects of the bacteria are realized.

The high-concentration plasma (including positive ions and negative ions) is used for sterilizing and purifying air, filtering and purifying pollutants, impurities and the like in the air and then discharging the filtered and purified pollutants, impurities and the like into the air, so that the air with high cleanliness is provided for users.

However, the plasma sterilization technology in the air environment can generate more ozone during discharging, high-concentration ozone has a severe pungent taste, and the ozone discharged into the air can pollute the atmospheric environment and harm the organs of the human body. At present, most of the ozone treatment in the industry is carried out in a catalytic filter screen intercepting and adsorbing mode, but the problem of material consumption is brought at the same time, so that the ozone treatment becomes one of the pain points in the market.

In order to solve the above problems, referring to fig. 1 to 3, the present application provides a plasma generating apparatus 100, which can be applied to an air purifier 1000, and can also be applied to an equipment environment such as an industrial factory building, and can not only provide a sterilization and purification function for air, but also solve the problem of ozone pollution to the environment during an ionization process.

Specifically, referring to fig. 1 to 2, the plasma generation device 100 includes a main body 10, a first ionization electrode 20 and a second ionization electrode 30, the main body 10 has a receiving cavity 13 therein, the first ionization electrode 20 is disposed in the receiving cavity 13, the second ionization electrode 30 is disposed outside the receiving cavity 13, the first ionization electrode 20 and the second ionization electrode 30 are configured to generate a plasma electric field, and the plasma generation device 100 further has a thermal field capable of generating heat therein, and a region where the thermal field is distributed at least covers a region where the plasma electric field is located.

It can be understood that high-concentration plasma exists in the plasma electric field, the plasma can disinfect and purify air, the temperature in the heat field is high, the covered area can be heated, and the area where the plasma electric field is located is completely covered by the area where the heat field is distributed, so that all the areas of the plasma electric field can be heated at high temperature.

Thus, the plasma generating device 100 generates plasma electric fields in and around the main body 10, and strong oxidizing substances such as hydroxyl and nitrogen oxides in high-concentration plasma components in the plasma electric fields directly react with pollutants in the air such as formaldehyde, toluene, ammonia gas and hydrogen sulfide to generate molecular chemical reaction, so that the pollutants are degraded into carbon dioxide and water, the problems of gaseous pollutants and peculiar smell gases in the air are solved, and the air is sterilized and purified.

The plasma generating device 100 further has a thermal field, and the region where the thermal field is distributed at least covers the region where the plasma electric field is located, so that ozone generated by air ionization in the plasma electric field is directly decomposed by heat in the thermal field, and the ozone is prevented from leaving the plasma electric field and overflowing to the air, thereby realizing the protection of the environment while sterilizing, and preventing ozone from being discharged to the outside so as to protect the environment.

Thus, under the combined action of the ionization discharge of the plasma electric field and the high-temperature heating of the thermal field, complete killing of peculiar smell (ammonia gas, acetic acid, acetaldehyde and the like), formaldehyde, toluene, virus microorganisms and the like in the whole air passing through the plasma generating device 100 is doubly ensured. In addition, the ozone is decomposed in the air purifying process, and other materials do not need to be additionally arranged to treat the ozone, so that the cost is reduced, and the economy is improved.

It is understood that the plasma generating apparatus 100 can be directly disposed in a specific environment such as a room where air purification is required, or the closed structure can be disposed to form the purification space 210 and then disposed in the specific environment such as a room where air purification is required, and the application is not limited thereto.

In particular, the body 10 may be provided in any shape, such as a hollow cylindrical shape, a prismatic shape, etc., and preferably, since the plasma generation apparatus 100 can generate a heat field, it is necessary to adopt the body 10 having certain heat resistance, so as to ensure the durability of the plasma generation apparatus 100 and prevent the body 10 from being damaged in the heat field.

Further, the plasma electric field is formed inside and around the main body 10, and the distribution of the heat field is not only inside the main body 10, but also can be transmitted to the periphery of the main body 10 through the main body 10, and also can be transmitted to the periphery of the main body 10 through the two ends of the main body 10, so as to improve the sterilization efficiency of ozone.

The first ionization electrode 20 and the second ionization electrode 30 are both made of conductive materials and need to have a voltage difference therebetween, so as to generate a plasma electric field in and around the main body 10, in practical applications, the first ionization electrode 20 may be configured to have a high voltage, the second ionization electrode 30 may be configured to have a low voltage, or the first ionization electrode 20 may be configured to have a low voltage, and the second ionization electrode 30 may be configured to have a high voltage.

It is understood that the heat in the thermal field can be provided by providing additional heat generating components, and other existing structures can be used for improvement, so as to achieve the purpose of forming the thermal field with heat. In one embodiment, the first ionization electrode 20 is configured to provide heat for the thermal field, that is, the first ionization electrode 20 has a dual function, on one hand, it can generate a plasma electric field to sterilize and purify air by cooperating with the second ionization electrode 30, and on the other hand, it can generate heat to generate heat in the thermal field, so as to decompose ozone generated in the process of sterilizing and purifying air by the plasma electric field, and achieve a "self-generating and self-selling" effect, thereby protecting the environment and improving the air quality on the basis of improving the economy.

Specifically, the dual function of the first ionization electrode 20 needs to be realized by two sets of circuits, the plasma generating apparatus 100 includes an ionization module 50 and a power module 40, the ionization module 50 is electrically connected to the first ionization electrode 20 for controlling the first ionization electrode 20 to generate a plasma electric field, and the power module 40 is electrically connected to the second ionization electrode 30 for controlling the first ionization electrode 20 to generate heat.

Further, the first ionization electrode 20 has a first connection end 21 and a second connection end 22 at two ends of the extension direction thereof, and the first connection end 21 and the second connection end 22 penetrate through the accommodating cavity 13 to be connected with the ionization module 50 and the power supply module 40, respectively.

Furthermore, it is necessary to provide corresponding high temperature resistant ceramic materials at the two ends of the main body 10 to seal the accommodating chamber 13, and add a high temperature resistant sheath to the lead wires passing through the outside of the main body 10 at the first connection end 21 and the second connection end 22 to protect the effective connection between the first connection end 21 and the second connection end 22 and the ionization module 50 and the power module 40.

In this way, the dual-purpose independent control of the first ionization electrode 20 can be realized, and in practical use, the ionization module 50 and the power supply module 40 can be selected to be connected simultaneously or any one of the ionization module 50 and the power supply module 40 can be connected independently according to requirements.

The ionization module 50 and the power supply module 40 can provide direct current or alternating current, and the specific arrangement mode needs to be set specifically according to the use environment and the use requirement, which is not limited herein.

Specifically, referring to fig. 1, the ionization module 50 has a high voltage output terminal 51 and a low voltage output terminal 52, the high voltage output terminal 51 is electrically connected to the second ionization electrode 30, and the low voltage output terminal 52 is electrically connected to the first ionization electrode 20, such that a voltage difference is generated between the first ionization electrode 20 and the second ionization electrode 30, and when the ionization module 50 is powered on, the first ionization electrode 20 and the second ionization electrode 30 generate a plasma electric field filled with plasma.

The first ionization electrode 20 in the accommodating cavity 13 has low voltage, so that negative effects on the air purification effect caused by internal discharge generated by high voltage inside the accommodating cavity 13 can be avoided, and therefore when unclean air passes through the plasma generation device 100, strong oxidizing substances such as hydroxyl, nitrogen oxide and the like in high-concentration plasma components in a plasma electric field can effectively solve the problems of gaseous pollutants and odor gas in the air, and the phenomenon that the purification effect is weakened due to internal discharge can be avoided.

In one embodiment, the material of the first ionization electrode 20, which is a structure capable of generating both plasma electric field and heat, needs special consideration, preferably, the first ionization electrode 20 is made of carbon fiber material,

first aspect, carbon fiber can produce the heat radiation effect after with ionization module 50 intercommunication, increases the kinetic energy of gas molecule, and the gas molecule motion is accelerated, and electron striking frequency increases, and the free path reduces, has just realized under the same electrical parameter condition, and more thorough of gas breakdown, the electrified ion density that discharges and bring will rise of linear type to make the disinfection purifying effect to the air better.

In the second aspect, the carbon fiber is after being communicated with the power module 40, the heat radiation action range is wide, in a certain range of discharge breakdown, by-product ozone generated by air discharge cannot be diffused, high-temperature heating directly decomposes the by-product ozone, damage to a human body caused by ozone overflow is reduced, and therefore the decomposition efficiency of ozone is higher.

In the third aspect, the carbon fiber is a fiber material with carbon content of more than 95%, the carbon fiber is close to an absolute black body, and the heat conversion efficiency and the heat radiation efficiency are extremely high, so that the purification effect and the ozone decomposition speed can be improved.

In other embodiments, the first ionization electrode 20 can be made of other materials, which is not limited herein.

In one embodiment, the second ionization electrode 30 is disposed on a surface of the main body 10 away from the accommodating cavity 13, such as closely attached to or coated on an outer surface of the main body 10, and may be made of a conductive material, such as metal, stainless steel, copper foil, aluminum foil, etc., to generate a plasma electric field in cooperation with the first ionization electrode 20, and preferably, referring to fig. 3 to 4, the second ionization electrode 30 may be a plate structure disposed in a grid or a strip shape to closely attach to the outer surface of the main body 10.

In one embodiment, the body 10 is cylindrical and the first ionizing electrode 20 extends along the axis of the cylinder.

In particular, the main body 10 can be made of a quartz tube material, and the quartz tube is used as a dielectric material for air dielectric barrier discharge, and has great advantages in dielectric constant and temperature resistance. Further, the quartz glass has a high transmittance for infrared rays when the carbon fiber is thermally radiated, so that the heat in the accommodating chamber 13 is more easily transmitted to the outside.

In one embodiment, the first ionization electrode 20 extends spirally around the central axis of the cylinder, so that more materials of the first ionization electrode 20 can be stacked and arranged in the same volume, the heat generated by the materials is more, and the density of the plasma generated by ionization is higher.

And, the first ionization part 20 is located at the central axis of the cylinder to ensure that the heat transferred to the upper and lower sides of the main body 10 is equal, thereby ensuring that the temperatures at all places are equal to uniformly decompose ozone.

Specifically, the distance between the first ionization electrode 20 and the main body 10 is controlled within the range of 0mm-5mm, the thickness of the main body 10 is controlled within the range of 0mm-10mm, and the outer diameter of the whole main body 10 is controlled within the range of 1mm-20mm, so that the heat generated by the first ionization electrode 20 can significantly raise the temperature of the air around the main body 10.

In one embodiment, the first ionization electrode 20 and the second ionization electrode 30 are arranged in parallel, so that the plasma electric field generated at any position around the main body 10 has the same intensity, and thus, the density of the plasma at any position in a specific environment is the same, so as to ensure that the air is purified fully and effectively.

According to another aspect of the present application, there is also provided an air purifier 1000, the air purifier 1000 comprising the plasma generation apparatus 100 of any of the above embodiments. Since the air cleaner 1000 has all the technical features of the plasma generation apparatus 100 provided in any of the above embodiments, it has the same technical effects as the above-described plasma generation apparatus 100.

In one embodiment, referring to fig. 5, the air purifier 1000 further includes a housing 200, the housing 200 has a purifying space 210, and an air inlet 220 and an air outlet 230 communicated with the purifying space 210, the plasma generating device 100 is disposed in the purifying space 210, the air inlet 220 is used for delivering unclean air into the purifying space 210, and discharging clean air from the air outlet 230 after being purified by the plasma generating device 100.

Thus, according to the air purifier 1000 provided by the application, the plasma generation device 100 generates the plasma electric field in the purification space 210, strong oxidizing substances such as hydroxyl and nitrogen oxide in high-concentration plasma components in the plasma electric field directly generate molecular chemical reaction with pollutants in the air such as formaldehyde, toluene, ammonia gas and hydrogen sulfide, the strong oxidizing substances are degraded into carbon dioxide and water, the problems of gaseous pollutants and odor gas in the air are solved, and the air is sterilized and purified.

In addition, the plasma generating apparatus 100 further has a thermal field, and the region where the thermal field is distributed at least covers the region where the plasma electric field is located, so that ozone generated by ionization of air in the plasma electric field is directly decomposed by heat in the thermal field, and the ozone is prevented from leaving the plasma electric field and overflowing to the air, thereby achieving the purpose of protecting the environment while sterilizing, and avoiding discharging ozone to the outside, so as to protect the environment.

Referring to fig. 1, 2 to 5, the air purifier 1000 includes a housing 200, a main body 10, a first ionization electrode 20, a second ionization electrode 30, an ionization module 50, and a power module 40, wherein the first ionization electrode 20 is disposed inside the main body 10 and electrically connected to a low voltage output end 52 of the ionization module 50 and the power module 40, the second ionization electrode 30 is disposed inside the main body 10 and electrically connected to a high voltage output end 51 of the ionization module 50, and the first ionization electrode 20 is made of carbon fiber. The housing 200 is assembled in the purification space 210 in the housing 200, and the housing 200 is provided with the air inlet 220 and the air outlet 230, so that the air inlet 220, the purification space 210 and the air outlet 230 form a "Z" shaped flow passage.

In the actual purification process, the ionization module 50 is controlled to be charged with alternating current, the first ionization electrode 20 and the second ionization electrode 30 generate plasma electric fields to break down surrounding air to release plasma, polluted gases (odor and odor, formaldehyde, toluene and bacterial microorganisms) and the like pass through the air inlet 220 and pass through the plasma generation device 100, the polluted gases are fully fused and contacted with the plasma generation device 100 in a Z-shaped flow pipeline, and high-energy electrons (1-20 ev) charged ions and ultraviolet light (3-40 ev) generated by discharge are isotropically and directly acted on the polluted substances such as odor molecules, formaldehyde molecules, microbial cell tissues and the like for disinfection and purification. Meanwhile, the high-temperature heating of the carbon fibers further decomposes ozone which is a byproduct generated by the discharge and some inactivated microbial residues.

Plasma discharge and high-temperature heating are combined to play a role, so that complete elimination of peculiar smells (ammonia gas, acetic acid, acetaldehyde and the like), formaldehyde, methylbenzene, virus microorganisms and the like passing through the device is doubly guaranteed. The purified air flows out from the air outlet 230, thereby obtaining purified clean air.

In other embodiments, the air purifier 1000 may further include an active circulation device such as a gas pump for circulating gas in the housing 200, and the active circulation device may be used to circulate and purify the pollutants in the space 210 for a plurality of times until the air in the space is completely purified and then discharged.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent application shall be subject to the appended claims.

Claims

1. A plasma generating apparatus, comprising:

a main body having an accommodating chamber therein;

a first ionization electrode and a second ionization electrode, the first ionization electrode being disposed within the containment chamber, the second ionization electrode being disposed outside the containment chamber, and the first ionization electrode and the second ionization electrode being configured to generate a plasma electric field;

the plasma generating device is provided with a plasma electric field distribution area, wherein the plasma electric field distribution area at least covers the area of the plasma electric field.

2. The plasma generation apparatus of claim 1, wherein the first ionizing electrode is configured to provide heat to the thermal field.

3. The plasma generation apparatus of claim 2, further comprising a high voltage output and a low voltage output;

the high voltage output end is electrically connected with the second ionization electrode, and the low voltage output end is electrically connected with the first ionization electrode.

4. The plasma generation apparatus of claim 2, further comprising a power module electrically connected to the first ionizing electrode for controlling the first ionizing electrode to generate heat.

5. The plasma generating apparatus according to any one of claims 1 to 4, wherein the first ionizing electrode is made of a carbon fiber material.

6. The plasma generating apparatus according to any of claims 1 to 4, wherein the main body has a cylindrical shape and the first ionizing electrode extends in an axial direction of the cylinder.

7. The plasma generating apparatus of claim 6, wherein the second ionizing electrode is disposed in parallel with respect to the first ionizing electrode.

8. The plasma generating apparatus of claim 6, wherein the first ionizing electrode extends helically about the central axis of the cylinder.

9. The plasma generating apparatus of any of claims 1-4, wherein the second ionizing electrode is disposed on a surface of the body facing away from the receiving cavity.

10. An air purifier, comprising a housing and the plasma generating device of any one of claims 1-9, wherein the plasma generating device is disposed within the housing.

11. The air cleaner of claim 10, wherein the housing has a cleaning space and an air inlet and an air outlet in communication with the cleaning space;

the plasma generating device is arranged in the purifying space.