A self-cleaning electrostatic dust removal device

Abstract

The present invention discloses a self-cleaning electrostatic dust removal device, comprising a charged particle generating device for charging dust particles in the air; a charged particle separating device for separating the charged dust particles generated by the charged particle generating device, the charged particle separating device comprising a conduit and a flap connected to a refrigeration or heating system, the flap being sleeved on the conduit and connected to a grounding electrode; and a supporting assembly for installing the charged particle generating device and the charged particle separating device. The present invention utilizes the electric field formed by the ionization wire to charge dust particles in the air, and when the charge passes through the flap having the opposite charge, the flap can be adsorbed by the flap, thereby achieving the purpose of dust removal, and at the same time, the flap is cooled by a copper tube connected to the refrigeration or heating system, forcing the flap to condense and frost to achieve the purpose of self-cleaning.

Description

Technical Field

[0001] The invention relates to the technical field of evaporators, and in particular to a self-cleaning electrostatic dust removal device. Background Art

[0002] With the development of economy and the progress of society, energy conservation has become inevitable and social consensus. Various electrical appliances are increasingly developing in the direction of energy saving, easy to use, space saving, safe and efficient, and multi-functional. Air conditioners are of course no exception as a very important member of people's living appliances. The most important component of air conditioners is the evaporator. It is well known that it is one of the four major parts in air conditioning refrigeration. The evaporator is located inside the air conditioner. When the air conditioner is turned on, the evaporator exchanges heat and cold, and a large amount of condensed water is generated on the surface. At the same time, the entry of outdoor air may carry various dust, bacteria, impurities, etc. These substances and condensed water adhere to the surface of the evaporator. Because the air conditioner evaporator is in a warm, dark, and humid environment for a long time when it is not working, coupled with long-term use, a large number of molds and other bacteria grow on the surface. Once the mold encounters a suitable environment, it will multiply quickly. In this way, once the air conditioner is working, various bacteria will rush to the user through the air outlet of the air conditioner, and will soon pollute the entire space, while bringing unpleasant odors, causing discomfort in the nasal cavity, trachea, and lungs, thereby endangering people's health. Existing evaporators are all cleaned manually, which not only fails to clean them properly, but also easily corrodes the components of the evaporator. Summary of the invention

[0003] The technical problem to be solved by the present invention is to overcome the deficiencies in the prior art, and the purpose is to provide a self-cleaning electrostatic dust removal device, which uses the electric field formed by the ionization wire to charge the dust particles in the air. When the charges pass through the chip that also has a high voltage potential difference, they can be adsorbed by the negative (grounded) chip, thereby achieving the purpose of dust removal. At the same time, the copper tube connected to the refrigeration or heating system is used to cool the chip, forcing the chip to condense and frost to achieve the purpose of self-cleaning.

[0004] The present invention is achieved through the following technical solutions:

[0005] A self-cleaning electrostatic dust removal device, comprising:

[0006] A charged particle generating device is used to charge dust particles in the air;

[0007] A charged particle separation device, used to separate the charged dust particles generated by the charged particle generation device, the charged particle separation device comprising a conduit connected to a refrigeration or heating system and a flap, the flap being sleeved on the conduit and connected to a ground electrode;

[0008] A supporting assembly is used to install the charged particle generating device and the charged particle separating device.

[0009] Furthermore, the charged particle separation device also includes a conductive tube, and the lifter includes a first lifter and a second lifter, the first lifter is sleeved on the conductive tube, and the second lifter is sleeved on the conduit and connected to the ground electrode.

[0010] Furthermore, a first connection hole and a second connection hole are provided on the first lifter and the second lifter, the conductive tube is connected to the first connection hole, the conduit is connected to the second connection hole, the inner diameter of the second connection hole on the first lifter is larger than the outer diameter of the conduit, and the inner diameter of the first connection hole on the second lifter is larger than the outer diameter of the conductive tube.

[0011] Furthermore, the first lifter and the second lifter are alternately distributed in sequence.

[0012] Furthermore, the support assembly includes two side plates, and the conduit is arranged on the side plates.

[0013] Furthermore, the charged particle separation device comprises a U-shaped elbow, and there are at least two conduits, and the U-shaped elbow is connected to the conduits.

[0014] Furthermore, the support assembly includes two side plates, and the conduit and the conductive tube are arranged on the side plates.

[0015] Furthermore, the support assembly also includes a connecting plate, and the connecting plate connects the two side plates.

[0016] Furthermore, a first insulating block is provided on the side plate, and the conductive tube is connected to the first insulating block to prevent the conductive tube from contacting the side plate.

[0017] Furthermore, a first fixing piece is provided on the first insulating block, and the first fixing piece is connected to the conductive tube.

[0018] Furthermore, the charged particle separation device comprises a first clamping member and a second clamping member, wherein the first clamping member is used to fix the second lifter on the conduit, and the second clamping member is used to fix the first lifter on the conductive tube.

[0019] Furthermore, the charged particle generating device includes two second fixing members and an ionizing wire, wherein the ionizing wire is fixed on the second fixing member, the side plate is provided with a second insulating block, the second fixing member is connected to the second insulating block and is located on one side of the warping piece.

[0020] Furthermore, the charged particle generating device comprises a grid plate mounted on the side plate, and the ionizing wire is located inside the grid plate.

[0021] Furthermore, the charged particle generating device comprises a first metal member and a second metal member, and there is a potential difference between the first metal member and the second metal member.

[0022] Furthermore, the first metal member includes a hollow metal bracket and discharge needles, the second metal member is a sheet-like porous structure, and the discharge needles are vertically fixed on the metal bracket and correspond to the holes respectively.

[0023] Furthermore, the charged particle generating device also includes two second fixing members, the first metal member and the second metal member are fixed on the second fixing member, the side plate is provided with two insulating blocks, the second fixing member is connected to the second insulating block and is located on one side of the warping piece.

[0024] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0025] 1. After the ionization wire provided in the present invention is energized, a high-voltage electric field is formed, which can break up the dust particles in the air and carry positive charges, and at the same time release a large number of negative ions to form a plasma space, so as to quickly kill bacteria and viruses in the air, and at the same time remove harmful gases such as odors. When the dust particles with positive charges pass through the flap, they are adsorbed on the flap connected to the negative electrode of the ground electrode, thereby filtering the dust particles;

[0026] 2. When the dust particles adsorbed on the lift-off piece accumulate to a certain extent, the temperature of the lift-off piece is reduced by introducing a refrigerant into the copper tube. The moisture generated by the lift-off piece during the rapid cooling process condenses and forms frost, thereby peeling off the dust particles adsorbed on the lift-off piece and achieving the purpose of self-cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The drawings described herein are used to provide a further understanding of the embodiments of the present invention, constitute a part of this application, and do not constitute a limitation of the embodiments of the present invention. In the drawings:

[0028] Figure 1 It is a schematic diagram of the structure of the present invention;

[0029] Figure 2 An exploded view of the structure of the present invention;

[0030] Figure 3 This is a schematic diagram of the structure of the present invention in Example 3;

[0031] Figure 4 This is an exploded view of the structure of the present invention in Example 3.

[0032] Marks and corresponding parts names in the attached drawings:

[0033] 1. U-shaped elbow; 2. first fixing member; 3. first insulating block; 4. side plate; 5. second insulating block; 6. first lifter; 7. first clamping member; 8. second lifter; 9. conduit; 10. second clamping member; 11. conductive tube; 12. ionizing wire; 13. grid plate; 14. second fixing member; 15. connecting plate; 16. discharge needle; 17. metal bracket; 18. second metal member. DETAILED DESCRIPTION

[0034] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with embodiments and drawings. The exemplary embodiments of the present invention and their description are only used to explain the present invention and are not intended to limit the present invention.

[0035] Example

[0036] like Figure 1 , Figure 2 As shown, the present invention includes:

[0037] A charged particle generating device is used to charge dust particles in the air;

[0038] A charged particle separation device, used to separate the charged dust particles generated by the charged particle generation device, the charged particle separation device comprises a conduit 9 connected to a refrigeration or heating system, and a flap, the flap is sleeved on the conduit 9 and connected to a ground electrode;

[0039] A supporting assembly is used to install the charged particle generating device and the charged particle separating device.

[0040] During the long-term use of the evaporator and electrostatic dust collection module in the prior art, various dust, bacteria, impurities, etc. in the air gradually adhere to the surface of the evaporator flaps and electrostatic dust collection sheets. At the same time, because they are in a warm, dark, and humid environment for a long time when not working, coupled with long-term use, a large number of molds and other bacteria grow on the surface. Once the mold encounters a suitable environment, it will multiply quickly. In this way, once the equipment is working, various bacteria will rush to the user through the air outlet, and will soon pollute the entire space. At the same time, it will bring unpleasant odors, causing discomfort in the nasal cavity, trachea, and lungs, thereby endangering human health. Therefore, it is necessary to regularly clean the evaporator flaps and electrostatic dust collection sheets. Most of the existing methods use manual cleaning, but the manual cleaning method is not only inadequate cleaning, but also easy to corrode the components in the cavity. For this reason, the technical solution improves the evaporator and electrostatic dust removal module in the prior art, and uses the charged particle generating device to charge the dust particles in the air, and then the dust with the charge When the particles pass through the charged particle separation device, the dust particles with charge can be separated, and the dust particles in the air can be isolated, thereby achieving the purpose of removing dust particles in the air; wherein, when the charged particle separation device is used to separate the charged particles in the air, since the conduit 9 is connected to the refrigeration system, such as a compressor, a condenser, an electronic expansion valve, etc., when the dust particles separated on the flap accumulate to a certain extent, the electronic expansion valve is opened to start the refrigeration function, so that the refrigerant flows in the conduit 9 to cool the flap, and the temperature of the flap is reduced to below 0°C or even to minus 20°C, so that the moisture generated by the flap during the rapid cooling process reaches a state of condensation and frost. Since the surface of the flap is smooth, its volume shrinks during rapid cooling, so that in the process of condensation, frost and peeling of the moisture on the flap connected to the conduit 9, the dust and other substances on the flap are driven, thereby achieving the purpose of self-cleaning.

[0041] The support assembly includes two side plates 4, the warping pieces are evenly distributed between the two side plates 4, a U-shaped elbow 1 is also provided on the side plate 4, there are at least two conduits 9, and the U-shaped elbow 1 is connected to the ends of two adjacent conduits 9 to form a curved spiral shape.

[0042] The conduit 9 provided in the present technical solution is not only used to connect the warping pieces in series in sequence and connect some of the warping pieces to the negative electrode, but also a refrigerant can be passed into the conduit 9 to achieve the effect of cooling the warping pieces. In order to improve the cooling effect of the conduit 9 on the warping pieces, a plurality of conduits 9 are provided. In order to improve the cooling or heating effect of the refrigeration or heating system on the warping pieces, the conduit 9 is preferably a copper tube. Since the copper tube has good thermal conductivity and electrical conductivity, it can be ensured that the conduit 9 can quickly cool or heat the warping pieces; at the same time, in order to ensure that the refrigerant can flow in each conduit 9, a U-shaped elbow 1 is also provided. The U-shaped elbow 1 is used to connect each conduit 9 in series in sequence and form a curved spiral shape, so that the refrigerant can flow in each conduit 9 in sequence to achieve the effect of cooling the warping pieces.

[0043] A connecting plate 15 is further provided between the two side plates 4 , and two ends of the connecting plate 15 are respectively connected to the tops of the two side plates 4 through first bolts.

[0044] The side panels 4 are provided to facilitate the stable fixing of the evaporator in the casing of the air conditioner. In order to improve the stability between the two side panels 4, a connecting plate 15 is also provided between the two side panels 4, and the first bolt is used to realize the connection between the connecting plate 15 and the side panel 4, which is convenient for loading and unloading.

[0045] The charged particle separation device also includes a conductive tube 11, the two ends of which are respectively connected to the two side plates 4, and the lift piece includes a first lift piece 6 and a second lift piece 8, which are alternately distributed on the conductive tube 11 and the conduit 9 in sequence, and the first lift piece 6 is in contact with the conductive tube 11, and the second lift piece 8 is in contact with the conduit 9.

[0046] Since the present technical solution utilizes the provided conduit 9 to connect a portion of the lift-off pieces to the negative electrode, in order to enable the other portion of the lift-off pieces to be connected to the positive electrode, thereby enabling two adjacent lift-off pieces to be connected to the positive electrode and the negative electrode respectively, a plurality of conductive tubes 11 are further provided between the two side plates 4, and the conductive tubes 11 also penetrate the lift-off pieces in sequence, wherein the provided conduit 9 is connected to the negative electrode connected to the ground, and the conductive tube 11 is connected to the positive electrode, so that an electric potential difference can be formed between two adjacent lift-off pieces.

[0047] In order to realize the formation of an electric potential difference between two adjacent lifters, the technical solution includes a first lifter 6 and a second lifter 8, wherein the first lifter 6 is connected to the positive electrode through a conductive tube 11, so that the first lifter 6 carries a high-voltage positive charge, and the second lifter 8 is connected to the ground electrode through a conduit 9, so that the voltage of the second lifter 8 is zero. In this way, when the dust particles with positive charge pass through the first lifter 6 and the second lifter 8 after passing through the high-voltage electric field formed by the ionization wire 12, under the action of the high-voltage electric potential field, due to the principle of like charges repel and opposite charges attract, the dust particles with positive charge flow to the second lifter 8, and the dust particles are adsorbed on the second lifter 8, thereby realizing the adsorption of dust particles in the air.

[0048] The side panel 4 is also provided with first insulating blocks 3, the number of which is the same as the number of conductive tubes 11, and the ends of the conductive tubes 11 extend into the first insulating blocks 3. The first insulating blocks 3 are also provided with first fixing members 2, which are screws, and are connected to the conductive tubes 11 located in the first insulating blocks 3.

[0049] Since both ends of the conduit 9 provided in the present technical solution are connected to the U-shaped elbow 1 on the side plate 4, the side plate 4 also carries the same charge as the conduit 9. Therefore, in order to prevent the conductive tube 11 provided between the side plates 4 from contacting the side plates 4, a first insulating block 3 is further provided on the side plate 4. The conductive tube 11 is fixed to the side plate 4 by using the provided first insulating block 3, and it is ensured that the conductive tube 11 does not contact the side plates 4; at the same time, the conductive tube 11 is stably fixed to the first insulating block 3 by using the provided first fixing member 2.

[0050] The first lift piece 6 and the second lift piece 8 are both provided with first connection holes having the same number as the conductive tubes 11 and second connection holes having the same number as the conduits 9 . The conductive tubes 11 are located in the first connection holes, and the conduits 9 are located in the second connection holes.

[0051] The inner diameter of the first connection hole on the first lifter 6 is consistent with the outer diameter of the conductive tube 11, the inner diameter of the second connection hole on the first lifter 6 is larger than the outer diameter of the conduit 9, the inner diameter of the first connection hole on the second lifter 8 is larger than the outer diameter of the conductive tube 11, and the inner diameter of the second connection hole on the second lifter 8 is consistent with the outer diameter of the conduit 9.

[0052] In the technical solution, since the conduit 9 and the conductive tube 11 are both inserted into the first lifter 6 and the second lifter 8, and in order to realize that the first lifter 6 and the second lifter 8 have different voltages, a first connection hole and a second connection hole are provided on the first lifter 6 and the second lifter 8, and the first connection hole is used to connect with the conductive tube 11, and the second connection hole is used to connect with the conduit 9. In order to realize that the first lifter 6 and the conductive tube 11 are in a connected state without contacting the conduit 9, the inner diameter of the first connection hole on the first lifter 6 is consistent with the outer diameter of the conductive tube 11, and the second connection hole is The inner diameter of the connection hole is larger than the conduit 9. Although the conductive tube 11 and the conduit 9 both pass through the first lifter 6, the conduit 9 does not contact the first lifter 6, so that the first lifter 6 can have the same high-voltage positive charge as the conductive tube 11. Similarly, in order to ensure that the second lifter 8 and the conduit 9 are grounded and the voltage is kept zero, the inner diameter of the first connection hole on the second lifter 8 is larger than the outer diameter of the conductive tube 11, and the inner diameter of the second connection hole is consistent with the outer diameter of the conduit 9. Therefore, the second lifter 8 can contact the conduit 9, but not the conductive tube 11, so that the second lifter 8 can have the same voltage as the conduit 9.

[0053] The charged particle separation device includes a first clamping member 7 and a second clamping member 10, wherein the second clamping member 10 is sleeved on a conductive tube 11, and the second clamping member 10 is used to fix the first flap 6 on the conductive tube 11; the first clamping member 7 is sleeved on a conduit 9, and the first clamping member 7 is used to fix the second flap 8 on the conduit 9.

[0054] In order to ensure that the first lifter 6 can be stably fixed on the conductive tube 11 and is not easy to move by itself, a second clamping member 10 is also provided on the conductive tube 11. The second clamping member 10 is sleeved on the conductive tube 11 and is located on both sides of the first lifter 6 to fix the first lifter 6 on the conductive tube 11; similarly, in order to ensure that the second lifter 8 can be stably fixed on the conduit 9, a first clamping member 7 is also provided on the conduit 9. The first clamping member 7 is sleeved on the conduit 9 and is located on both sides of the second lifter 8 to stably fix the second lifter 8 on the conduit 9.

[0055] Example 2

[0056] On the basis of Example 1, the charged particle generating device includes two second fixing parts 14 and an ionizing wire 12. Two second insulating blocks 5 are provided on the side panels 4. The second fixing parts 14 are located between the two side panels 4. The two ends of the second fixing parts 14 are respectively located in the second insulating blocks 5 of the two side panels 4. The two second fixing parts 14 are parallel to each other, and the two second fixing parts 14 are located on one side of the distribution direction of the first lift plate 6 and the second lift plate 8; the two ends of the ionizing wire 12 are respectively fixed on the two second fixing parts 14.

[0057] The charged particle generating device in this embodiment uses an ionizing wire 12 to be connected to a high-voltage power supply. After the ionizing wire 12 is energized, a high voltage of more than 8000 volts is formed, forming a high-voltage electric field. At the same time, a large number of negative ions are released to form a separation subspace. The powerful plasma electric field can quickly kill all bacteria and viruses in the air, and can also remove various odors and other toxic gases. The plasma electric field will produce ozone. When cooling, ozone can be quickly reduced to oxygen when it meets water through an evaporator containing high water molecules. When heating, it can also be quickly reduced to oxygen after passing through an evaporator with a temperature of dozens of degrees. As a result, when the air passes through the electric field, it can force the dust particles in the air to carry a positive charge when passing through the electric field. When the dust particles with positive charge pass through the warping sheet, the positively charged particles will be adsorbed by the warping sheet connected to the negative electrode, thereby adsorbing the dust particles in the air onto the warping sheet, thereby achieving the removal of dust particles in the air.

[0058] In order to ensure that the set ionization wire 12 can be stably located at the entrance where the gas enters the warping piece, a second fixing member 14 is provided, and two paths of the second fixing member 14 are connected to the two side plates 4 through the second insulating block 5, that is, to ensure that the second fixing member 14 can be stably fixed between the two side plates 4, and the direct contact between the second fixing member 14 and the side plates 4 is avoided. The set ionization wires 12 are evenly distributed on the second fixing member 14, and the second fixing member 14 is connected to a high-voltage power supply, so that a high-voltage electric field can be formed after the ionization wire 12 is energized.

[0059] It also includes a grid plate 13 . The side walls of the side plates 4 are also provided with convex edges. The grid plate 13 is fixed to the convex edges of the side plates 4 by second bolts, and the ionizing wire 12 is located inside the grid plate 13 .

[0060] In order to ensure that a high voltage electric field can be formed after the ionization wire 12 is energized, a grid plate 13 is further provided on the side plate 4. The grid plate 13 is used to separate the ionization wires 12 to ensure that a high voltage electric field can be generated in the grid plate 13 after the ionization wire 12 is energized.

[0061] Example 3

[0062] like Figure 3 , Figure 4 As shown, based on Example 1, the charged particle generating device includes a first metal member and a second metal member 18 , and there is a potential difference between the first metal member and the second metal member 18 .

[0063] The charged particle generating device in this embodiment is two metal parts, namely a first metal part and a second metal part 18. In order to generate an electric field between the first metal part and the second metal part 18 so that the dust particles passing through the electric field are charged, one of the metal parts is connected to a high potential and the other metal part is connected to a low potential. In this way, a certain potential difference is formed between the first metal part and the second metal part 18, thereby generating an electric field, which ultimately enables the dust particles in the air to be charged when passing through the electric field.

[0064] Example 4

[0065] On the basis of Example 3, the first metal member includes a hollow metal bracket 17 and a discharge needle 16, and the second metal member is a sheet-like porous structure. The discharge needle 16 is vertically fixed on the metal bracket 17 and corresponds to the holes respectively.

[0066] The charged particle generating device also includes two second fixing members 14, the first metal member and the second metal member are fixed on the second fixing members 14, the side plate 4 is provided with two second insulating blocks 5, the second fixing members 14 are connected to the second insulating blocks 5, and are located on one side of the warping piece.

[0067] The charged particle generating device in this embodiment uses the principle of tip discharge to generate an electric field, so that the dust particles passing through the electric field can be charged.

[0068] The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A self-cleaning electrostatic dust removal device, characterized in that: include: A charged particle generating device is used to charge dust particles in the air; A charged particle separation device, used to separate the charged dust particles generated by the charged particle generation device, the charged particle separation device comprising a conduit (9) connected to a refrigeration or heating system, and a flap, the flap being sleeved on the conduit (9) and connected to a grounding electrode, the refrigeration system cooling the flap to reduce the temperature of the flap to below 0°C, and in the process of condensation and frost on the flap connected to the conduit (9) and peeling off, the dust on the flap is driven away; The charged particle separation device further comprises a conductive tube (11), the lift-off piece comprises a first lift-off piece (6) and a second lift-off piece (8), the first lift-off piece (6) is sleeved on the conductive tube (11), and the second lift-off piece (8) is sleeved on the conduit (9) and connected to the ground electrode; The first lift piece (6) and the second lift piece (8) are provided with a first connection hole and a second connection hole, the conductive tube (11) is connected to the first connection hole, and the conduit (9) is connected to the second connection hole, the inner diameter of the second connection hole on the first lift piece (6) is greater than the outer diameter of the conduit (9), and the inner diameter of the first connection hole on the second lift piece (8) is greater than the outer diameter of the conductive tube (11); The first lift pieces (6) and the second lift pieces (8) are arranged alternately in sequence; The charged particle separation device comprises a U-shaped elbow (1), at least two conduits (9), and the U-shaped elbow (1) is connected to the conduit (9); A support assembly, used for mounting the charged particle generating device and the charged particle separating device; The support assembly comprises two side plates (4), and the conduit (9) is arranged on the side plates (4).

2. A self-cleaning electrostatic precipitator according to claim 1, characterized in that: The support assembly comprises two side plates (4), and the conduit (9) and the conductive tube (11) are arranged on the side plates (4).

3. A self-cleaning electrostatic precipitator according to claim 2, characterized in that: The support assembly further comprises a connecting plate (15), wherein the connecting plate (15) connects the two side plates (4).

4. A self-cleaning electrostatic precipitator according to claim 2, characterized in that: A first insulating block (3) is provided on the side plate (4); the first insulating block (3) is connected to the conductive tube (11) and is used to prevent the conductive tube (11) from contacting the side plate (4).

5. A self-cleaning electrostatic precipitator according to claim 4, characterized in that: A first fixing member (2) is provided on the first insulating block (3), and the first fixing member (2) is connected to the conductive tube (11).

6. A self-cleaning electrostatic precipitator according to claim 1, characterized in that: The charged particle separation device comprises a first clamping member (7) and a second clamping member (10), wherein the first clamping member (7) is used to fix the second flap (8) on the conduit (9), and the second clamping member (10) is used to fix the first flap (6) on the conductive tube (11).

7. A self-cleaning electrostatic precipitator according to claim 1, characterized in that: The charged particle generating device comprises a second fixing member (14) and an ionizing wire (12), wherein the ionizing wire (12) is fixed on the second fixing member (14), the side plate (4) is provided with a second insulating block (5), and the second fixing member (14) is connected to the second insulating block (5) and is located on one side of the warping piece.

8. A self-cleaning electrostatic precipitator according to claim 7, characterized in that: The charged particle generating device comprises a grid plate (13) mounted on the side plate (4), and the ionizing wire (12) is located inside the grid plate (13).

9. A self-cleaning electrostatic precipitator according to claim 1, characterized in that: The charged particle generating device comprises a first metal part and a second metal part (18), and there is an electric potential difference between the first metal part and the second metal part (18).

10. A self-cleaning electrostatic precipitator according to claim 9, characterized in that: The first metal component comprises a hollow metal support (17) and a discharge needle (16); the second metal component (18) is a sheet-like porous structure; the discharge needles are vertically fixed on the metal support and correspond to the holes respectively.

11. A self-cleaning electrostatic precipitator according to claim 10, characterized in that: The charged particle generating device further comprises a second fixing member (14), the first metal member and the second metal member being fixed on the second fixing member (14), the side plate (4) being provided with two second insulating blocks (5), the second fixing member (14) being connected to the second insulating blocks (5) and being located on one side of the warping piece.

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