Electrode assembly, discharge unit, purification device and air purifier

Abstract

The present invention relates to the technical field of air purifiers, and in particular to an electrode assembly, a discharge unit, a purification device and an air purifier. The electrode assembly comprises a first electrode, an insulating dielectric layer and a second electrode. The first electrode is constructed as a plate-like structure and is bent to form at least one accommodation space, and an opening is provided on the accommodation space; the insulating dielectric layer is wrapped around the surface of the first electrode; the second electrode is arranged in the accommodation space and attached to the inner wall of the accommodation space. The electrode assembly provided by the present invention has a more concentrated plasma generated by discharge and a higher sterilization and purification efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of air purifiers, and in particular to an electrode assembly, a discharge unit, a purification device and an air purifier. Background Art

[0002] As environmental problems become increasingly serious, pollutants in the air silently threaten people's health, and air purifiers have gradually become a necessity in people's lives.

[0003] There are many purification principles for air purifiers, generally including air filtration, ultraviolet disinfection, ozone disinfection, fumigation disinfection and plasma air sterilization purification technology. The air filtration method generally uses a high-efficiency filter to filter PM2.5 particles, but the investment cost of the filtration equipment is large and the maintenance cost is high; ultraviolet disinfection and ozone disinfection have a general effect on the inactivation of mold; the fumigation disinfection method generally heats the disinfectant or adds an oxidant to produce gas for disinfection, but the chemical reagents used in the fumigation disinfection method are toxic and harmful to the human body, and a long ventilation time is required after disinfection.

[0004] Plasma air sterilization and purification technology, as a technology that can efficiently and conveniently destroy and decompose pollutants, is attracting more and more attention from scholars from all over the world and has become a promising high-tech technology in the field of environmental pollution control. Plasma air sterilization and purification technology generates high-voltage discharge in a gas phase environment to break through the air, forming a plasma environment, and using the electrons and ions in the plasma to collide with gas molecules in the air to produce a chain chemical reaction, so that pollutants in the gas migrate, transform and become harmless.

[0005] In the related art, there is a plate structure, a sterilization device and an air purifier, wherein the plate structure includes a first electrode, a second electrode and a dielectric layer, wherein the first electrode is a plate-shaped structure or a columnar structure; the second electrode is a mesh structure and is arranged in parallel with the first electrode, or is arranged around the first electrode; the dielectric layer is arranged between the first electrode and the second electrode, and the dielectric layer is made of an electret material. When the second electrode is arranged in parallel with the plate-shaped first electrode, or the second electrode is arranged around the columnar first electrode, the plasma is easily diffused, stable plasma cannot be generated, and the sterilization and purification efficiency is low. Summary of the invention

[0006] Therefore, the technical problem to be solved by the present invention is to overcome the defect of low sterilization and purification efficiency in the prior art, thereby providing an electrode assembly, a discharge unit, a purification device and an air purifier with high sterilization and purification efficiency.

[0007] In order to solve the above technical problems, the present invention provides an electrode assembly, comprising:

[0008] The first electrode is constructed as a plate-like structure and is bent to form at least one accommodation space, wherein the accommodation space is provided with an opening;

[0009] An insulating dielectric layer, wrapped around the surface of the first electrode;

[0010] The second electrode is arranged in the accommodation space and attached to the inner wall of the accommodation space.

[0011] In the electrode assembly provided by the present invention, the accommodating space is an arc-shaped groove, and the notch of the arc-shaped groove is the opening.

[0012] In the electrode assembly provided by the present invention, the first electrode is bent to form two arc-shaped grooves arranged in an S shape, and the openings of the two arc-shaped grooves face in opposite directions.

[0013] In the electrode assembly provided by the present invention, the first electrode is made of a conductive material; the second electrode is a carbon fiber bundle, and at least part of the carbon fibers of the carbon fiber bundle are attached to the outside of the insulating medium layer.

[0014] The present invention also provides a discharge unit, comprising:

[0015] Support structure;

[0016] A plurality of the electrode assemblies mentioned above are rotatably connected to the support structure.

[0017] The discharge unit provided by the present invention further includes:

[0018] a first connecting post, one end of which is connected to one end of the electrode assembly and the other end of which is rotatably connected to the supporting structure;

[0019] The second connecting column has one end connected to the other end of the electrode assembly and the other end rotatably connected to the supporting structure.

[0020] The discharge unit provided by the present invention, the support structure includes a first conductive support column and a second conductive support column arranged in parallel, the other end of the first connecting column is rotatably connected to the first conductive support column, and the other end of the second connecting column is rotatably connected to the second conductive support column.

[0021] In the discharge unit provided by the present invention, the first conductive support column is suitable for connecting to the high voltage end, one end of the first connecting column is connected to the first electrode of the electrode assembly, and the first connecting column is made of a conductive material.

[0022] The discharge unit provided by the present invention further includes a first insulating portion, wherein the first insulating portion is wrapped around the outer periphery of the first connecting column.

[0023] In the discharge unit provided by the present invention, the second conductive support column is suitable for being connected to the low voltage end, and the second electrode of the electrode assembly is electrically connected to the second conductive support column via a wire wound around the second connecting column.

[0024] The discharge unit provided by the present invention further includes a second insulating portion, and the second insulating portion is wrapped around the surface of the second connecting column.

[0025] In the discharge unit provided by the present invention, a first smooth groove is provided on the first conductive support column, and the other end of the first connecting column can be rotatably inserted into the first smooth groove;

[0026] The second conductive support column is provided with a second smooth groove, and the other end of the second connecting column can be rotatably inserted into the second smooth groove.

[0027] The discharge unit provided by the present invention further includes a first driving structure, which is arranged in the first smooth groove and connected to the first connecting column;

[0028] And / or, it also includes a second driving structure, which is arranged in the second smooth groove and connected to the second connecting column.

[0029] The present invention also provides a purification device, comprising:

[0030] The above-mentioned discharge unit;

[0031] The collecting unit is arranged opposite to the discharging unit, and the collecting unit comprises at least one magnet and at least two dust collecting plates arranged in parallel; the dust collecting plate is connected to the magnet and has an angle with the magnet.

[0032] In the purification device provided by the present invention, the collecting unit includes two magnets arranged in parallel, one of the magnets is vertically connected to one end of the dust collecting plate, and the other magnet is vertically connected to the other end of the dust collecting plate.

[0033] The present invention also provides an air purifier, comprising the above-mentioned purification device.

[0034] The technical solution of the present invention has the following advantages:

[0035] 1. The electrode assembly provided by the present invention includes a first electrode, an insulating medium layer and a second electrode, wherein the first electrode is constructed as a plate-like structure and is bent to form at least one accommodating space, wherein the accommodating space is provided with an opening; the insulating medium layer is wrapped around the surface of the first electrode; the second electrode is arranged in the accommodating space and attached to the inner wall of the accommodating space.

[0036] The invention comprises a first electrode, an insulating dielectric layer and a second electrode, and in the energized state, the electrode assembly is convenient for generating high-density plasma. The second electrode is attached to the inner wall of the accommodation space to achieve close fitting of the two electrodes, and in the micro-discharge at the millimeter level, the discharge intensity is increased, and due to the close fitting of the two electrodes, the discharge area is narrow, and the amount of ozone generated by the discharge is reduced.

[0037] For a flat or columnar first electrode, the plasma is easy to diffuse and cannot generate stable plasma. To achieve a higher sterilization and purification efficiency, a higher voltage is required to generate a higher amount of ozone. In the electrode assembly of the present invention, the first electrode is bent to form at least one accommodating space, and the second electrode is arranged in the accommodating space. Discharge is achieved in the accommodating space, and the plasma generated by the discharge is more concentrated, and the sterilization and purification efficiency is higher.

[0038] 2. The discharge unit provided by the present invention includes a supporting structure and a plurality of electrode assemblies, wherein the electrode assemblies are rotatably connected to the supporting structure to change the air flow field distribution, thereby achieving full contact reaction between the electrode assemblies and the air, and achieving a higher sterilization and purification efficiency.

[0039] 3. The purification device provided by the present invention includes a discharge unit and a collection unit, the collection unit is arranged opposite to the discharge unit, the collection unit includes at least one magnet and at least two dust collecting plates arranged in parallel, and the dust collecting plates are connected to the magnet.

[0040] The collecting unit is arranged opposite to the discharging unit and is located behind the discharging unit to collect the charged particles from the discharging unit. The magnet applies a magnetic field to the dust collecting area of ​​the dust collecting plate. Under the action of the Lorentz force, the charged particles perform a cyclotron motion in the magnetic field, which prolongs the residence time of the charged particles between the dust collecting plates, making them more easily adsorbed by the dust collecting plates, thereby improving the efficiency of sterilization and purification. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0042] Figure 1 is a schematic diagram of an electrode assembly of the present invention;

[0043] Figure 2 is a schematic diagram of a discharge unit of the present invention;

[0044] Figure 3 for Figure 2 A magnified view of part A;

[0045] Figure 4 for Figure 2 A magnified view of part B;

[0046] Figure 5 is a schematic diagram of a collection unit of the present invention;

[0047] Figure 6 Schematic diagram of the movement of charged particles of the present invention.

[0048] Description of reference numerals:

[0049] 1-electrode assembly; 11-first electrode; 111-arc groove; 12-insulating medium layer; 13-second electrode; 2-support structure; 21-first conductive support column; 22-second conductive support column; 3-first connecting column; 4-second connecting column; 5-first insulating part; 6-second insulating part; 7-conducting wire; 8-magnet; 9-dust collecting plate; 10-plasma generator; 101-high voltage end; 102-low voltage end. DETAILED DESCRIPTION

[0050] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0051] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0052] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0053] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0054] Combination Figure 1-Figure 6 As shown, the electrode assembly 1 provided in this embodiment includes a first electrode 11, an insulating medium layer 12 and a second electrode 13. The first electrode 11 is constructed as a plate-like structure and is bent to form at least one accommodating space, and an opening is provided on the accommodating space; the insulating medium layer 12 is wrapped around the surface of the first electrode 11; the second electrode 13 is arranged in the accommodating space and attached to the inner wall of the accommodating space.

[0055] The first electrode 11, the insulating dielectric layer 12 and the second electrode 13 are included, and when powered on, the electrode assembly 1 is convenient for generating high-density plasma. The second electrode 13 is attached to the inner wall of the accommodation space to achieve close fit of the two electrodes, and in the micro-discharge at the millimeter level, the discharge intensity is increased, and due to the close fit of the two electrodes, the discharge area is narrow, and the amount of ozone generated by the discharge is reduced. Preferably, the insulating dielectric layer 12 is evenly wrapped on the surface of the first electrode 11.

[0056] For the flat or columnar first electrode 11, the plasma is easy to diffuse and the effect is not obvious. In order to achieve a higher sterilization and purification effect, a higher voltage drive is required, which also increases the amount of ozone, and long-term exposure to ozone is harmful to the human body. In the electrode assembly 1 of the present invention, the first electrode 11 is bent to form at least one accommodating space, and the second electrode 13 is arranged in the accommodating space. Discharge is achieved in the accommodating space, and the plasma generated by the discharge is more concentrated. Under the same conditions, the electrode assembly 1 of the present invention has a higher sterilization and purification efficiency. The accommodating space is also provided with an opening, which is convenient for untreated air to enter the accommodating space, and for charged particles to leave the accommodating space after electrode discharge, without affecting the sterilization and purification efficiency.

[0057] The electrode assembly 1 in this embodiment uses atmospheric pressure surface discharge technology to make the electrode produce weak light blue light. The discharge intensity is sufficient to inactivate bacteria and microorganisms, achieving the effect of purification and sterilization. The discharge of the electrode assembly 1 is different from traditional static electricity and corona discharge. The discharge intensity reaches glow discharge. The charged particles generated by this intensity discharge can effectively act on gaseous pollutants, microorganisms and other pollutants. And the by-products are water and carbon dioxide, which are harmless to the human body.

[0058] In the electrode assembly 1 of this embodiment, the accommodation space is an arc-shaped groove 111, and the notch of the arc-shaped groove 111 is the opening. The structure is simple, easy to form, and the second electrode 13 is convenient to be attached to the arc-shaped groove 111 through the notch.

[0059] As a convertible implementation, the accommodating space may be a tubular structure, and the opening may be provided on a side of the tubular structure.

[0060] In the electrode assembly 1 of this embodiment, the first electrode 11 is bent to form two arc grooves 111 arranged in an S shape, and the openings of the two arc grooves 111 face opposite directions, so that the electrode assembly 1 can discharge at multiple angles and has a wide coverage of sterilization and purification.

[0061] Under the premise of occupying the same space width, the first electrode 11 with the arc-shaped groove 111 has a larger discharge area and a higher sterilization and purification efficiency.

[0062] In the electrode assembly 1 of this embodiment, the first electrode 11 is made of a conductive material; the second electrode 13 is a carbon fiber bundle, and at least part of the carbon fibers of the carbon fiber bundle are attached to the outside of the insulating medium layer 12.

[0063] Preferably, the first electrode 11 is electrically connected to the high voltage end 101, and the second electrode 13 is electrically connected to the low voltage end 102. The first electrode 11 is made of a conductive material; the carbon fiber bundle is electrically connected to the low voltage end 102, which reduces the effect of secondary electrons generated by discharge, can effectively control the intensity of discharge, and achieve effective discharge while effectively controlling the amount of ozone.

[0064] This embodiment also provides a discharge unit, including a support structure 2 and a plurality of the above-mentioned electrode assemblies 1, wherein the electrode assembly 1 is rotatably connected to the support structure 2, changing the air flow field distribution, so that the air pressure near the electrode becomes lower, and the air is affected by the air pressure, pushing the air to actively contact the discharge structure, so that the electrode assembly 1 and the air are fully contacted and reacted, achieving a more sufficient purification effect, and greatly improving the purification efficiency. In addition, the electrode assembly 1 faces the wind direction during the rotation process, contacts more air, improves the sterilization and purification efficiency, and makes the electrode assembly 1 less prone to dust accumulation, so that more charged particles can directly reach the collection unit behind to be collected.

[0065] The discharge unit in this embodiment further includes a first connecting post 3 and a second connecting post 4, one end of the first connecting post 3 is connected to one end of the electrode assembly 1, and the other end is rotatably connected to the support structure 2; one end of the second connecting post 4 is connected to the other end of the electrode assembly 1, and the other end is rotatably connected to the support structure 2. The electrode assembly 1 is rotatably connected to the support structure 2 through the first connecting post 3 and the second connecting post 4.

[0066] In this embodiment, the support structure 2 includes a first conductive support column 21 and a second conductive support column 22 arranged in parallel, the other end of the first connecting column 3 is rotatably connected to the first conductive support column 21, and the other end of the second connecting column 4 is rotatably connected to the second conductive support column 22. The electrical connection with the electrode assembly 1 is achieved through the first conductive support column 21 and the second conductive support column 22. The first conductive support column 21 and the second conductive support column 22 are electrically connected to the first electrode 11 and the second electrode 13 respectively.

[0067] In this embodiment, the first conductive support column 21 is suitable for connecting to the high-voltage terminal 101, one end of the first connecting column 3 is connected to the first electrode 11 of the electrode assembly 1, and the first connecting column 3 is made of a conductive material. The high-voltage terminal 101 can be the high-voltage terminal 101 of the plasma generator 10. The first electrode 11 is electrically connected to the high-voltage terminal 101 through the conductive first connecting column 3 and the first conductive support column 21.

[0068] The discharge unit in this embodiment further includes a first insulating portion 5, which is wrapped around the outer periphery of the first connecting column 3 to prevent the first connecting column 3 from discharging and affecting its conductive effect.

[0069] In this embodiment, the second conductive support column 22 is suitable for connecting to the low voltage end 102 , and the second electrode 13 of the electrode assembly 1 is electrically connected to the second conductive support column 22 via a wire 7 wound around the second connecting column 4 .

[0070] The discharge unit in this embodiment further includes a second insulating portion 6, which is wrapped around the surface of the second connecting column 4 to prevent the second connecting column 4 from conducting electricity with the second conductive support column 22 and to prevent the second connecting column 4 from discharging.

[0071] In this embodiment, the first conductive support column 21 is provided with a first smooth groove, and the other end of the first connecting column 3 can be rotatably inserted into the first smooth groove; the second conductive support column 22 is provided with a second smooth groove, and the other end of the second connecting column 4 can be rotatably inserted into the second smooth groove. There are multiple first smooth grooves and multiple second smooth grooves, which are distributed one by one on the first conductive support column 21 and the second conductive support column 22, and correspond to the number of electrode assemblies 1.

[0072] Preferably, the electrode assembly 1 rotates with the wind through the first connecting column 3 and the second connecting column 4. The friction between the first connecting column 3 and the first smooth groove is small, so it is convenient to rotate under the action of wind. The friction between the second connecting column 4 and the second smooth groove is small, so it is convenient to rotate under the action of wind.

[0073] One end of the first connecting column 3 is connected to one end of the first electrode 11, and the distances from the connection point of the first connecting column 3 and the first electrode 11 to both sides of the first electrode 11 are equal; one end of the second connecting column 4 is connected to the other end of the first electrode 11, and the distances from the connection point of the second connecting column 4 and the first electrode 11 to both sides of the first electrode 11 are equal. Preferably, the first electrode 11 is bent to form two arc grooves 111 arranged in an S shape, and the first connecting column 3 and the second connecting column 4 are respectively connected to the connection points of the two arc grooves 111 at both ends of the first electrode 11.

[0074] The discharge unit in this embodiment further includes a first driving structure, which is disposed in the first smooth groove and connected to the first connecting column 3 ; it provides rotational power for the first connecting column 3 , thereby driving the electrode assembly 1 to rotate.

[0075] And / or, the discharge unit in this embodiment further includes a second driving structure, which is disposed in the second smooth groove and connected to the second connecting column 4 to provide rotational power for the second connecting column 4, thereby driving the electrode assembly 1 to rotate.

[0076] As a convertible embodiment, the first driving structure may be connected to the supporting structure 2, and the driving end of the first driving structure may be connected to the first connecting column 3. And / or, the second driving structure may be connected to the supporting structure 2, and the driving end of the second driving structure may be connected to the second connecting column 4.

[0077] A purification device is also provided in this embodiment, comprising the above-mentioned discharge unit and collection unit, the collection unit is arranged opposite to the discharge unit, the collection unit comprises at least one magnet 8 and at least two dust collecting plates 9 arranged in parallel, the dust collecting plates 9 are connected to the magnet 8 and have an angle with the magnet 8. Preferably, the collection unit is arranged in parallel behind the discharge unit and is located downstream of the gas flow direction. Preferably, the dust collecting plate 9 of the collection unit is arranged in parallel with the electrode assembly 1, or the dust collecting plate 9 is arranged vertically with the electrode assembly 1, and the magnet 8 is arranged in parallel with the electrode assembly 1.

[0078] The collecting unit is arranged opposite to the discharging unit and is located behind the discharging unit to collect the charged particles of the discharging unit. The magnet 8 applies a magnetic field to the dust collecting area of ​​the dust collecting plate 9. Under the action of the Lorentz force, the charged particles perform a cyclotron motion in the magnetic field, which prolongs the residence time of the charged particles between the dust collecting plates 9, making them more easily adsorbed by the dust collecting plates 9, thereby improving the efficiency of sterilization and purification.

[0079] Specifically, the magnet 8 may be one, two or more. The magnet 8 may be a permanent magnet 8 or a soft magnet 8.

[0080] In this embodiment, the collection unit includes two parallel magnets 8, one of which is vertically connected to one end of the dust collecting plate 9, and the other is vertically connected to the other end of the dust collecting plate. The magnetic fields of the two magnets 8 are superimposed, which prolongs the residence time of the charged particles between the dust collecting plates 9, making them more easily adsorbed by the dust collecting plates 9, thereby improving the efficiency of sterilization and purification.

[0081] This embodiment also provides an air purifier, including the above-mentioned purification device, which has high sterilization and purification efficiency.

[0082] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the present invention.

Claims

1. A discharge unit, characterized in that: include: A support structure (2) comprising a first conductive support column (21) and a second conductive support column (22) arranged in parallel; A plurality of electrode assemblies (1) are rotatably connected to the support structure (2); the electrode assembly (1) comprises a first electrode (11) which is constructed as a plate-like structure and is bent to form at least one accommodation space, wherein the accommodation space is provided with an opening; an insulating medium layer (12) is wrapped around the surface of the first electrode (11); and a second electrode (13) is arranged in the accommodation space and attached to the inner wall of the accommodation space; A first connecting column (3), one end of which is connected to one end of the electrode assembly (1), and the other end of which is rotatably connected to a first conductive supporting column (21) of the supporting structure (2); A second connecting column (4) has one end connected to the other end of the electrode assembly (1) and the other end rotatably connected to a second conductive supporting column (22) of the supporting structure (2).

2. The discharge unit according to claim 1, characterized in that: The accommodating space is an arc-shaped groove (111), and the notch of the arc-shaped groove (111) is the opening.

3. The discharge unit according to claim 2, characterized in that: The first electrode (11) is bent to form two arc-shaped grooves (111) arranged in an S shape, and the openings of the two arc-shaped grooves (111) face in opposite directions.

4. The discharge unit according to any one of claims 1 to 3, characterized in that: The first electrode (11) is made of a conductive material; the second electrode (13) is a carbon fiber bundle, and at least part of the carbon fibers of the carbon fiber bundle are attached to the outside of the insulating medium layer (12).

5. The discharge unit according to any one of claims 1 to 3, characterized in that: The first conductive support column (21) is suitable for connecting to the high voltage end (101), one end of the first connecting column (3) is connected to the first electrode (11) of the electrode assembly (1), and the first connecting column (3) is made of conductive material.

6. The discharge unit according to claim 5, characterized in that: It also comprises a first insulating portion (5), wherein the first insulating portion (5) is wrapped around the outer circumference of the first connecting column (3).

7. The discharge unit according to claim 5, characterized in that: The second conductive support column (22) is suitable for connecting to the low voltage end (102), and the second electrode (13) of the electrode assembly (1) is electrically connected to the second conductive support column (22) via a wire (7) wound around the second connecting column (4).

8. The discharge unit according to claim 7, characterized in that: It also comprises a second insulating portion (6), wherein the second insulating portion (6) is wrapped around the surface of the second connecting column (4).

9. The discharge unit according to any one of claims 6 to 8, characterized in that: The first conductive support column (21) is provided with a first smooth groove, and the other end of the first connecting column (3) is rotatably inserted into the first smooth groove; The second conductive support column (22) is provided with a second smooth groove, and the other end of the second connecting column (4) can be rotatably inserted into the second smooth groove.

10. The discharge unit according to claim 9, characterized in that: It also includes a first driving structure, which is arranged in the first smooth groove and connected to the first connecting column (3); And / or, it also includes a second driving structure, which is arranged in the second smooth groove and connected to the second connecting column (4).

11. A purification device, characterized in that: include: The discharge unit according to any one of claims 1 to 10; A collection unit is arranged opposite to the discharge unit, and comprises at least one magnet (8) and at least two dust collecting plates (9) arranged in parallel; the dust collecting plates (9) are connected to the magnet (8).

12. The purification device according to claim 11, characterized in that: The collecting unit comprises two magnets (8) arranged in parallel, one of the magnets (8) being vertically connected to one end of the dust collecting plate (9), and the other of the magnets (8) being vertically connected to the other end of the dust collecting plate (9).

13. An air purifier, characterized in that: Comprising the purification device as claimed in claim 11 or 12.

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