An air purification device

Abstract

The utility model discloses an air purification device, including electrode subassembly, power assisting component and fixed component, electrode subassembly includes discharge needle and discharge ground cage, discharge ground cage with fixed component is connected, the inside of discharge needle is set up in discharge ground cage, power assisting component includes parallel electric board and windshield all setting on fixed component, parallel electric board is used for forming parallel acceleration electric field below discharge needle, the windshield is set up below parallel acceleration electric field and covers and is equipped with the bottom of discharge ground cage, is equipped with ion channel for discharging the particle of passing through parallel acceleration electric field processing on the windshield. The utility model discloses through setting up parallel acceleration electric field cooperation ion channel, has expanded the action range of active particle, realizes to the high -efficient purification of peculiar smell molecule and microorganism in air.

Description

Technical Field

[0001] This utility model relates to the field of air purification technology, and in particular to an air purification device. Background Technology

[0002] To purify indoor air, existing technologies often employ chemical adsorption, neutralization, or ultraviolet irradiation for sterilization and odor removal. While these methods can purify air to some extent, they generally suffer from low purification efficiency, high operating costs, potential health hazards, or the potential to cause secondary pollution, making it difficult to meet the demands of efficient, safe, and environmentally friendly modern air treatment. Discharge purification technology, as a physical air treatment method, has gradually gained attention in recent years. Discharge purification technology generates active oxygen (such as ozone) and free radicals—strong oxidizing substances—under the influence of a high-voltage electric field, which decompose odor molecules in the air and kill bacteria, viruses, and other harmful microorganisms. Compared to traditional chemical or light-based methods, discharge purification technology has advantages such as rapid reaction speed, high sterilization efficiency, and no secondary pollution.

[0003] However, existing discharge purification devices still have many shortcomings in their structural design. For example, because the excitation area of ​​active particles is usually limited to a few millimeters near the electrode, and the active particles have a short lifespan and limited movement path, their effective range is limited, thus reducing purification efficiency. Furthermore, in existing discharge purification devices, active particles often diffuse along parallel paths, failing to fully utilize ion energy for efficient sterilization and odor removal within the space. Therefore, optimizing the electrode structure and designing auxiliary acceleration mechanisms to improve the utilization efficiency of active particles, extend their action path, and expand the air treatment area have become pressing technological challenges. Utility Model Content

[0004] The purpose of this invention is to provide an air purification device that addresses the problem of low purification efficiency caused by the limited range of active particles in existing discharge purification devices.

[0005] To solve the above-mentioned technical problems, the purpose of this utility model is achieved through the following technical solution: An air purification device is provided, comprising an electrode assembly, an assist assembly, and a fixing assembly. The electrode assembly includes a discharge needle and a discharge grounding cage, the discharge grounding cage being connected to the fixing assembly, and the discharge needle being disposed inside the discharge grounding cage. The assist assembly includes a parallel electric plate and a baffle plate both disposed on the fixing assembly. The parallel electric plate is used to form a parallel accelerating electric field below the discharge needle. The baffle plate is disposed below the parallel accelerating electric field and covers the bottom of the discharge grounding cage. The baffle plate has an ion channel for discharging particles treated by the parallel accelerating electric field.

[0006] Furthermore, the fixing assembly includes an electrode insulating bracket, an insulating needle holder, and a fixing body. The electrode insulating bracket and the insulating needle holder are both connected to the fixing body. The discharge grounding cage, the wind baffle, and the parallel electrode plate are all disposed on the electrode insulating bracket. The discharge needle is connected to an external high-voltage power supply through the insulating needle holder.

[0007] Furthermore, the fixing component also includes an insulating wrapping layer for preventing abnormal discharge, the insulating wrapping layer being disposed between the discharge grounding cage and the parallel plate.

[0008] Furthermore, it also includes an activated carbon layer, which is ring-shaped and covers the outside of the discharge grounding cage and is connected to the fixed body.

[0009] Furthermore, at least two parallel plates are disposed on the electrode insulating support, and the at least two parallel plates are disposed opposite to each other and parallel to each other, for forming the parallel accelerating electric field.

[0010] Furthermore, the electrode insulating support is hollow and surrounds the discharge needle, and the parallel electrode plate is disposed on the electrode insulating support away from the discharge needle.

[0011] Furthermore, the wind deflector is a circular plate, and the ion channel is located at the center of the circular plate.

[0012] Furthermore, a gap for gas flow is provided between the activated carbon layer and the discharge grounding cage.

[0013] Furthermore, the activated carbon layer is coaxially arranged with the discharge grounding cage, and the activated carbon layer is cylindrical.

[0014] Furthermore, the discharge needle is located directly above the ion channel.

[0015] This invention provides an air purification device, including an electrode assembly, an assist assembly, and a fixing assembly. The electrode assembly includes a discharge needle and a discharge grounding cage, the discharge grounding cage being connected to the fixing assembly, and the discharge needle being disposed inside the discharge grounding cage. The assist assembly includes a parallel electric plate and a baffle plate both disposed on the fixing assembly. The parallel electric plate is used to form a parallel accelerating electric field below the discharge needle, and the baffle plate is disposed below the parallel accelerating electric field and covers the bottom of the discharge grounding cage. The baffle plate has an ion channel for discharging particles treated by the parallel accelerating electric field. This invention expands the effective range of active particles by setting a parallel accelerating electric field in conjunction with ion channels, achieving highly efficient purification of odor molecules and microorganisms in the air. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 A schematic diagram of the structure of an air purification device provided in this embodiment of the utility model. Figure 1 ;

[0018] Figure 2 A schematic diagram of the structure of an air purification device provided in this embodiment of the utility model. Figure 2 ;

[0019] Figure 3 A schematic diagram of the motion of the parallel accelerating electric field provided in the embodiments of this utility model. Figure 1 ;

[0020] Figure 4 A schematic diagram of the motion of the parallel accelerating electric field provided in the embodiments of this utility model. Figure 2 .

[0021] Explanation of the markings in the image:

[0022] 10. Electrode assembly; 11. Discharge needle; 12. Discharge grounding cage;

[0023] 20. Assistive component; 21. Parallel electrode plate; 22. Wind deflector; 221. Ion channel;

[0024] 30. Fixing component; 31. Electrode insulating support; 32. Insulating needle holder; 33. Fixing body; 34. Insulating wrapping layer;

[0025] 40. Activated carbon layer. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0027] It should be understood that, when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0028] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0029] It should also be further understood that the term "and / or" as used in this specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0030] Combination Figure 1 and Figure 2 As shown, this utility model embodiment provides an air purification device, including an electrode assembly 10, an assist assembly 20, and a fixing assembly 30. The electrode assembly 10 includes a discharge needle 11 and a discharge grounding cage 12. The discharge grounding cage 12 is connected to the fixing assembly 30, and the discharge needle 11 is disposed inside the discharge grounding cage 12. The assist assembly 20 includes a parallel electric plate 21 and a wind baffle 22 both disposed on the fixing assembly 30. The parallel electric plate 21 is used to form a parallel accelerating electric field below the discharge needle 11. The wind baffle 22 is disposed below the parallel accelerating electric field and covers the bottom of the discharge grounding cage 12. The wind baffle 22 has an ion channel 221 for discharging particles treated by the parallel accelerating electric field.

[0031] In this embodiment, the discharge needle 11 is a high-voltage discharge electrode with its tip pointing downwards, used to generate plasma under the action of a DC high-voltage power supply. The discharge grounding cage 12 is used to form an electric field loop to achieve effective discharge. The discharge needle 11 is disposed inside the discharge grounding cage 12 and can be connected to an external high-voltage power supply through an insulating structure. The discharge grounding cage 12 is mounted on the entire air purification device by a fixing assembly 30.

[0032] Furthermore, the assist component 20 includes a parallel electric plate 21 and a baffle plate 22, both mounted on the fixed component 30. The parallel electric plate 21 forms a parallel accelerating electric field. This parallel accelerating electric field applies an electric force to the charged particles generated during the discharge process, causing them to accelerate linearly along the direction of the parallel accelerating electric field, extending their path of motion and increasing the distribution range of the particles in space. The baffle plate 22 is positioned below the parallel accelerating electric field and covers the bottom of the discharge grounding cage 12. To achieve the orderly release of particles, the baffle plate 22 has ion channels 221 for discharging the accelerated charged particles.

[0033] Through the above structural design, this embodiment can achieve highly efficient purification of odor molecules and harmful substances such as bacteria in the air. Active particles are excited and generated in the strong electric field formed by the discharge needle 11 and the discharge grounding cage 12. They are then directionally accelerated under the action of the parallel accelerating electric field between the parallel plates 21 and concentratedly discharged through the ion channel 221, effectively expanding their bactericidal and odor-removing range and improving air purification efficiency.

[0034] In one embodiment, the fixing component 30 includes an electrode insulating support 31, an insulating needle holder 32, and a fixing body 33. The electrode insulating support 31 and the insulating needle holder 32 are both connected to the fixing body 33. The discharge grounding cage 12, the wind baffle 22, and the parallel plate 21 are all disposed on the electrode insulating support 31. The discharge needle 11 is connected to an external high-voltage power supply through the insulating needle holder 32.

[0035] In this embodiment, the electrode insulating bracket 31 is mounted on the fixed body 33 to support the electrode assembly 10 and the assist assembly 20. The discharge grounding cage 12, the parallel electrode plate 21, and the wind baffle 22 are all mounted on the electrode insulating bracket 31. The electrode insulating bracket 31 is made of a material with good insulation properties, which can effectively prevent electric field interference and abnormal discharge, improving the stability and safety of the air purification device. The insulating needle holder 32 is also mounted on the fixed body 33 to support the discharge needle 11 and hold it in the center of the discharge grounding cage 12. The discharge needle 11 is electrically connected to an external high-voltage power supply through the insulating needle holder 32, thereby achieving stable tip discharge under high-voltage power supply. The insulating needle holder 32 has a robust structure and good electrical insulation properties, which helps prevent high-voltage current leakage and ensures the safety of the discharge process.

[0036] The fixed component 30 not only realizes the overall installation and spatial positioning of the electrode component 10 and the assist component 20, but also improves electrical safety and mechanical stability through insulation and isolation design, providing a safety guarantee for the efficient discharge and particle acceleration of the air purification device.

[0037] In one embodiment, the fixing component 30 further includes an insulating wrapping layer 34 for preventing abnormal discharge, the insulating wrapping layer 34 being disposed between the discharge grounding cage 12 and the parallel plate 21.

[0038] In this embodiment, the fixing component 30 further includes an insulating wrapping layer 34 for preventing abnormal discharge. The insulating wrapping layer 34 is disposed between the discharge grounding cage 12 and the parallel plate 21, and its main function is to insulate and isolate the potential difference area that may exist between the discharge grounding cage 12 and the parallel plate 21, so as to prevent abnormal phenomena such as continuity, creepage or breakdown discharge caused by voltage differences.

[0039] Specifically, the discharge grounding cage 12 is a grounding structure, while the parallel plate 21 is usually connected to an external power source to form an accelerating electric field. A significant potential difference exists between the two during operation. Without isolation, unexpected arcing or localized breakdown may occur between them, affecting the normal operation of the air purification device and even posing electrical safety hazards. Therefore, the insulating wrapping layer 34, either covering or spaced between the discharge grounding cage 12 and the parallel plate 21, effectively improves the insulation level of this area and ensures the stability of the electric field distribution.

[0040] Furthermore, the insulating wrapping layer 34 can be made of insulating materials with good high-voltage and heat resistance, such as polytetrafluoroethylene (PTFE), epoxy resin, or ceramic materials, which not only have excellent electrical insulation properties but also meet the long-term use requirements under high-voltage discharge environments. The installation of this insulating wrapping layer 34 further ensures the electrical safety of the air purification device during continuous operation.

[0041] In one embodiment, an activated carbon layer 40 is also included, which is annularly wrapped around the outside of the discharge grounding cage 12 and connected to the fixing body 33.

[0042] In this embodiment, the activated carbon layer 40 is disposed on the outside of the discharge grounding cage 12 and connected to the fixing body 33, and is used to further deodorize the residual gas after plasma treatment.

[0043] Specifically, the activated carbon layer 40 has a ring-shaped structure, which is distributed circumferentially around the cylindrical outer wall of the discharge grounding cage 12, forming a surrounding adsorption area. This structural design ensures that the gas still needs to pass through the activated carbon layer 40 after leaving the generation area, thereby increasing the contact area and time with the adsorption medium, which helps to further remove odor molecules that have not been completely oxidized and decomposed in the gas.

[0044] The activated carbon layer 40 is preferably composed of granular or fibrous activated carbon material with high adsorption performance, which can effectively remove volatile organic compounds, odor substances, and trace amounts of harmful gases from the air through physical adsorption and surface reaction. Simultaneously, since the activated carbon layer 40 is fixedly connected to the fixed body 33, it can be ensured to remain stable during the operation of the air purification device, unaffected by airflow disturbances or vibrations. By setting the annular activated carbon layer 40, a synergistic purification effect with the plasma discharge process in the electrode assembly 10 can be achieved, further enhancing the air purification level after initial sterilization and decomposition, thereby achieving deep treatment of polluted gases and effectively improving the overall purification efficiency and practical application effect of the air purification device.

[0045] Combination Figure 3 and Figure 4As shown, in one embodiment, at least two parallel plates 21 are provided on the electrode insulating support 31, and the at least two parallel plates 21 are arranged opposite to each other and parallel to each other, for forming the parallel accelerating electric field.

[0046] In this embodiment, two parallel plates 21 are respectively mounted on opposite sidewalls of the electrode insulating support 31, maintaining a uniform distance between them and arranged in a parallel structure. This parallel arrangement forms a stable and uniform parallel accelerating electric field. During the operation of the air purification device, when the discharge needle 11 excites charged particles, the parallel accelerating electric field can apply a constant electric force to the particles, causing them to move in a straight line along the direction of the parallel accelerating electric field, thereby extending the movement path of the active particles and improving their effective range and purification efficiency in the air.

[0047] To ensure the uniformity and parallelism of the parallel accelerating electric field, the two parallel plates 21 are preferably made of a rigid and electrically stable metal material, such as stainless steel or aluminum alloy, and are mounted on the electrode insulating support 31 through an insulating fixing structure. The edges of the parallel plates 21 are smooth and flat to avoid corona discharge caused by the concentration of the parallel accelerating electric field, ensuring the stability and safety of the electric field environment. The two oppositely arranged parallel plates 21 can construct an effective acceleration path in the parallel accelerating electric field, providing sufficient kinetic energy support for the particles in the ion channel 221, thereby achieving rapid and efficient purification of pollutants in the air and further improving the actual performance of the air purification device.

[0048] In one embodiment, the electrode insulating support 31 is hollow and surrounds the discharge needle 11, and the parallel plate 21 is disposed on the electrode insulating support 31 away from the discharge needle 11.

[0049] In this embodiment, the electrode insulating bracket 31 is used to support and electrically isolate the various components without interfering with the discharge process. The discharge needle 11 is located at the center of the hollow electrode insulating bracket 31, and the electrode insulating bracket 31 forms an annular support channel around the discharge needle 11, providing a spatial foundation for the subsequent installation of various functional structures. At the same time, the electrode insulating bracket 31 can be made of a material with good electrical insulation properties, which can effectively avoid problems such as breakdown, short circuit or electric field interference during high-voltage discharge, thereby improving the overall system's operational stability and electrical safety.

[0050] A parallel electrode plate 21 is disposed on the outer sidewall of the electrode insulating support 31, and the parallel electrode plate 21 is positioned far away from the discharge needle 11 to ensure that it is in the downstream region of the discharge path. With this arrangement, the charged particles excited from the discharge needle 11 can enter the parallel accelerating electric field formed by the parallel electrode plate 21 after initial release, thereby achieving directional acceleration and improving the output velocity and effective action distance of the active particles.

[0051] In one embodiment, the wind deflector 22 is a circular plate, and the ion channel 221 is located at the center of the circular plate.

[0052] In this embodiment, the wind deflector 22 is a circular plate, designed to enclose the bottom of the discharge grounding cage 12 and form a guiding surface for the directional release of particles. The wind deflector 22 is arranged horizontally and is generally disc-shaped, with symmetrical and balanced structural features, which can effectively guide the stability of the flow field and reduce turbulence interference during particle movement.

[0053] To achieve directional output of charged particles after being accelerated by a parallel electric field, an ion channel 221 is located at the center of the circular baffle 22. The ion channel 221 extends through the entire thickness of the baffle 22 and is aligned with the axis of the discharge needle 11, i.e., located on the extension line of the discharge path. This ensures that charged particles, after discharge and acceleration, can pass through the ion channel 221 along the central axis and be ejected, achieving highly efficient sterilization and air purification. The circular baffle 22 not only restricts the airflow path and prevents particle diffusion, but also, through its central opening structure, allows for concentrated and stable release of the ion beam, improving plasma utilization efficiency and spatial coverage. This structure plays a crucial guiding role in the particle transport path during device operation, contributing to improved purification performance and overall device efficiency.

[0054] In one embodiment, a gap for gas flow is provided between the activated carbon layer 40 and the discharge grounding cage 12.

[0055] In this embodiment, the gap is distributed in a ring shape, surrounding the outer periphery of the discharge grounding cage 12, forming a continuous gas channel, which is used to guide the polluted gas into the activated carbon adsorption area after passing through the discharge area, thereby achieving deep purification treatment of residual odor components.

[0056] Specifically, the discharge grounding cage 12 mainly generates plasma and performs preliminary purification, while some incompletely decomposed pollutants still require further treatment after flowing through the electric field area. Using the gap between the discharge grounding cage 12 and the activated carbon layer 40, polluted gas can flow outward along the gap path and fully contact the surrounding activated carbon layer 40 to complete the adsorption process. The existence of this gas flow gap not only ensures the continuity of gas flow from the discharge area to the adsorption area but also effectively avoids airflow blockage or uneven distribution caused by a compact structure, thus improving the overall gas treatment efficiency. By rationally setting the size and position of this gap, airflow guidance control can be achieved, allowing the adsorption capacity of the activated carbon layer 40 to be fully utilized, thereby further enhancing the odor removal performance of the air purification device.

[0057] In one embodiment, the activated carbon layer 40 is coaxially arranged with the discharge grounding cage 12, and the activated carbon layer 40 is cylindrical.

[0058] In this embodiment, the discharge grounding cage 12 is a hollow cylindrical structure used to form a plasma interaction area around the discharge needle 11. The activated carbon layer 40 is arranged around the outside of the discharge grounding cage 12, with their axes coinciding, i.e., they are coaxially arranged in space, thus forming a composite purification channel with a symmetrical structure and uniform airflow distribution. The activated carbon layer 40 is made of activated carbon material with excellent adsorption performance and is constructed into a thick-walled cylindrical shape. A certain gap is maintained between its inner surface and the discharge grounding cage 12 to allow gas flow and achieve full adsorption treatment of odor molecules. The cylindrical structure of the discharge grounding cage 12 can effectively increase the adsorption surface area per unit volume, enhance the purification capacity, and at the same time facilitate the overall structural stability and modular integration of the air purification device.

[0059] In one embodiment, the discharge needle 11 is located directly above the ion channel 221.

[0060] In this embodiment, the discharge needle 11 is arranged vertically and mounted on the insulating needle holder 32, with its tip pointing downwards and coaxially aligned with the center of the ion channel 221 on the baffle plate 22, thereby ensuring that its discharge direction is consistent with the axis of the ion channel 221. This arrangement ensures that the charged particles excited during the high-voltage discharge process can be released directionally along a preset path. After being accelerated by the parallel accelerating electric field constructed by the parallel plates 21, they pass straight through the ion channel 221 and are ejected into the external space for sterilization and purification. This design not only improves the particle energy utilization rate but also avoids particle deviation or diffusion during transmission, enhancing the effective action distance and concentration of the plasma.

[0061] By placing the discharge needle 11 directly above the ion channel 221, the plasma excitation, acceleration, and extraction are coaxially coordinated in space, which helps to improve the discharge stability and purification efficiency of the air purification device and further optimizes the overall performance and structural coordination of the air purification device.

[0062] In one specific embodiment of this utility model, after the air purification device is powered on, the discharge needle 11 disposed in the electrode assembly 10 generates a high-intensity electric field under the action of an external high-voltage power supply, which excites and ionizes the surrounding gas to form a plasma rich in active particles. This plasma is propelled from top to bottom by the directional airflow generated by a fan or airflow device and passes through the parallel accelerating electric field region constructed by the parallel electric plates 21 disposed on the electrode insulating support 31.

[0063] When passing through the discharge grounding cage 12, the polluting gas comes into full contact with the plasma, undergoing an oxidation-reduction reaction to achieve preliminary decomposition and inactivation of odor molecules and bacteria. Subsequently, some active particles enter the region of the parallel accelerating electric field. Because the polarity of their charge is consistent with the direction of the applied electric field, they are accelerated linearly along the central axis of the parallel accelerating electric field after being subjected to force, and finally pass through the ion channel 221 set in the center of the baffle 22 (e.g., Figure 3 and Figure 4 (As shown). This process enables the directional output and high energy concentration of plasma particles for efficient sterilization of subsequent space or object surfaces.

[0064] Meanwhile, some of the unaccelerated pollutants are redirected after passing through the baffle plate 22, exiting from the side wall of the discharge grounding cage 12 and further passing through the coaxially arranged cylindrical activated carbon layer 40. Within this annular adsorption structure, residual odor components in the pollutants are effectively removed through physical adsorption and chemical reaction, achieving deep air purification.

[0065] In summary, the entire air purification process is carried out in a coordinated manner through "discharge excitation - particle acceleration - ion channel output - activated carbon adsorption", which has both sterilization and odor removal functions, significantly improving air purification efficiency and treatment range.

[0066] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions should all be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. An air purification device, characterized in that, The device includes an electrode assembly, an assist assembly, and a fixing assembly. The electrode assembly includes a discharge needle and a discharge grounding cage, the discharge grounding cage being connected to the fixing assembly, and the discharge needle being disposed inside the discharge grounding cage. The assist assembly includes a parallel electric plate and a baffle plate, both disposed on the fixing assembly. The parallel electric plate is used to form a parallel accelerating electric field below the discharge needle, and the baffle plate is disposed below the parallel accelerating electric field and covers the bottom of the discharge grounding cage. The baffle plate has ion channels for discharging particles treated by the parallel accelerating electric field.

2. The air purification device according to claim 1, characterized in that, The fixing assembly includes an electrode insulating bracket, an insulating needle holder, and a fixing body. The electrode insulating bracket and the insulating needle holder are both connected to the fixing body. The discharge grounding cage, the wind baffle, and the parallel electrode plate are all disposed on the electrode insulating bracket. The discharge needle is connected to an external high-voltage power supply through the insulating needle holder.

3. The air purification device according to claim 2, characterized in that, The fixing component also includes an insulating wrapping layer for preventing abnormal discharge, the insulating wrapping layer being disposed between the discharge grounding cage and the parallel plate.

4. The air purification device according to claim 2, characterized in that, It also includes an activated carbon layer, which is ring-shaped and covers the outside of the discharge grounding cage and is connected to the fixed body.

5. The air purification device according to claim 2, characterized in that, At least two parallel plates are provided on the electrode insulating support, and the at least two parallel plates are arranged opposite to each other and parallel to each other, in order to form the parallel accelerating electric field.

6. The air purification device according to claim 2, characterized in that, The electrode insulating support is hollow and surrounds the discharge needle, and the parallel plate is disposed on the electrode insulating support away from the discharge needle.

7. The air purification device according to claim 1, characterized in that, The windbreak is a circular plate, and the ion channel is located at the center of the circular plate.

8. The air purification device according to claim 4, characterized in that, A gap for gas flow is provided between the activated carbon layer and the discharge grounding cage.

9. The air purification device according to claim 4, characterized in that, The activated carbon layer is coaxially arranged with the discharge grounding cage, and the activated carbon layer is cylindrical.

10. The air purification device according to claim 1, characterized in that, The discharge needle is located directly above the ion channel.

Images