Electrostatic dust collection device and air cleaning equipment

Abstract

The utility model discloses an electrostatic dust collection device and air cleaning equipment, and relates to the technical field of dust collection equipment.The electrostatic dust collection device comprises a first electrode plate and a second electrode plate, and a gap between the first electrode plate and the second electrode plate is used for forming an airflow channel; the projections of the adjacent first electrode plates and second electrode plates in the airflow inlet or outlet direction are partially overlapped; the device further comprises a charging assembly arranged on the airflow channel and used for ionizing airflow, and the ionized airflow is adsorbed by the first electrode plate or the second electrode plate.

Description

Technical Field

[0001] This utility model relates to the field of dust removal equipment technology, and more specifically, to an electrostatic dust removal device and an air cleaning device. Background Technology

[0002] Electrostatic precipitators are air purification devices that use a high-voltage electric field to ionize gas, thus charging dust particles. Under the influence of the electric field, the dust particles are separated from the gas. However, the dust removal efficiency of existing electrostatic precipitators needs improvement.

[0003] Therefore, how to solve the problem of low dust removal efficiency of existing electrostatic dust removal devices is an urgent problem to be solved by those skilled in the art. Utility Model Content

[0004] In view of this, the present invention provides an electrostatic dust removal device that can improve the dust removal effect.

[0005] This utility model also provides an air cleaning device including the above-mentioned electrostatic dust removal device, which has a good dust removal effect.

[0006] This utility model provides the following technical solution:

[0007] An electrostatic dust removal device, comprising:

[0008] The first electrode plate and the second electrode plate are separated by a gap to form an airflow channel; the projections of adjacent first electrode plates and second electrode plates overlap in the direction of airflow inlet or outlet.

[0009] A charged component is disposed on the airflow channel to ionize the airflow, and the ionized airflow is adsorbed by the first electrode plate or the second electrode plate.

[0010] In some embodiments, a plurality of first electrode plates and a plurality of second electrode plates are arranged in a circumferential array, and the two are disposed on different arcs.

[0011] In some embodiments, any two circumferentially adjacent first electrode plates have a first gap, and any two circumferentially adjacent second electrode plates have a second gap, with the first gap and the second gap being disposed on different radii of the arc.

[0012] In some embodiments, the charging assembly includes a plurality of parallel charging units inserted into a first gap or a second gap.

[0013] In some embodiments, the first electrode plate and the second electrode plate are arc-shaped tiles, or the first electrode plate and the second electrode plate are V-shaped sheets.

[0014] In some embodiments, the charging unit is connected to an external positive high-voltage power supply, the first electrode plate is connected to an external negative high-voltage power supply, and the second electrode plate is connected to an external negative low-voltage power supply or grounded; or, the second electrode plate is connected to an external negative high-voltage power supply, and the first electrode plate is connected to an external negative low-voltage power supply or grounded.

[0015] In some embodiments, a fixing frame for connecting the charging assembly to the first electrode plate and the second electrode plate is also included. The fixing frame includes an upper frame and a lower frame. The upper frame and the lower frame are provided with a wiring groove for receiving electricity and a positioning groove for fixing the charging assembly, the first electrode plate and the second electrode plate. The positioning groove is partially connected to the wiring groove.

[0016] In some embodiments, the charging unit includes an elastic element and an electrode wire connected to the elastic element, the elastic element being used to keep the electrode wire taut.

[0017] In some embodiments, the charging unit also includes a protrusion connected to the elastic element, and the outer peripheral edge of the lower frame is provided with a positive pressure side groove for mounting the elastic element and the protrusion.

[0018] An air cleaning device includes an air inlet and an air outlet, and an electrostatic dust removal device as described in any of the above, disposed at the air inlet.

[0019] The electrostatic dust removal device provided by this utility model includes a first electrode plate, a second electrode plate, and a charging component. Specifically, the gap between the first and second electrode plates forms an airflow channel, allowing air to enter from the inlet end of the airflow channel and exit from the outlet end. The projections of adjacent first and second electrode plates overlap in the direction of airflow inlet or outlet, creating an electric field between them. The charging component is disposed on the airflow channel to ionize the airflow. The ionized airflow is adsorbed by the first or second electrode plate. The air flowing through the airflow channel first passes through the charging component, where it is ionized into positive and negative ions by the highly unstable electric field. These positive and negative ions further combine with inhalable dust particles in the air, causing the dust particles to acquire positive or negative charges. Then, passing through the electric field between the first and second electrode plates, the positively and negatively charged inhalable dust particles are adsorbed onto the first and second electrode plates, thereby capturing the inhalable dust particles and effectively purifying the air.

[0020] The electrostatic dust removal device configured in the above manner can ionize dust particles in the air flowing through the airflow channel by the charged components, and then be adsorbed by the first electrode plate or the second electrode plate, thereby achieving the effect of dust removal and air purification. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the electrostatic dust removal device provided by this utility model.

[0023] Figure 2 This is a schematic diagram of the dust collection component provided by this utility model;

[0024] Figure 3 A schematic diagram showing the airflow direction inside a dust collection component provided by this utility model;

[0025] Figure 4 This is a schematic diagram showing the airflow direction inside another dust collection component provided by this utility model;

[0026] Figure 5 A schematic diagram of another embodiment of the dust collection component provided by this utility model;

[0027] Figure 6 This is a schematic diagram of the structure of the charged component provided by this utility model;

[0028] Figure 7 This is a schematic diagram of the upper frame provided by this utility model;

[0029] Figure 8 for Figure 7 A structural diagram from another perspective;

[0030] Figure 9 This is a schematic diagram of the lower frame provided by this utility model;

[0031] Figure 10 for Figure 9 A structural diagram from another perspective.

[0032] Figure label:

[0033] 1-Charging assembly, 11-Positive high voltage plate, 12-Connector, 13-Electrode wire, 14-Elastic element, 15-Protrusion;

[0034] 2-Dust collection assembly, 21-First electrode plate, 22-Second electrode plate, 23-Negative high voltage plate, 24-First clamping component, 25-Second clamping component, 26-Grounding plate;

[0035] 3-Fixed frame, 31-Upper frame, 311-Positive high voltage plate slot, 312-Negative high voltage plate slot, 313-First grounding plate slot, 314-Positive pressure hole, 315-First negative pressure plate slot, 32-Lower frame, 321-Second grounding plate slot, 322-Positive pressure side slot, 323-Second negative pressure plate slot, 324-Grounding plate slot. Detailed Implementation

[0036] 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, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0037] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0038] It should be noted that the directional terms such as "up" and "down" in the following text are defined based on the accompanying drawings in the instruction manual.

[0039] With the progress of industrialization, the emission of flue gas, vehicle exhaust, and dust from construction sites has led to an increase in particulate matter in the air, posing a significant threat to human health. Therefore, dust collectors have become indispensable electrical devices, and electrostatic precipitators are favored due to their simple structure. In some implementations, an electrostatic precipitator mainly includes a charging component 1 and a dust collection component 2. When air flows through the charging component 1, it is ionized by a high voltage, causing dust and other particulate matter in the air to acquire a positive charge. The downstream dust collection component 2 is connected to a negative high voltage, creating a negative high-voltage electric field inside. When positively charged particles flow through this negative high-voltage electric field, they are adsorbed inside the dust collection component 2, thus achieving dust removal and purification.

[0040] This invention provides an electrostatic dust removal device that can improve dust removal efficiency. This invention also provides an air cleaning device including the above-mentioned electrostatic dust removal device, which has good dust removal performance.

[0041] Please refer to Figures 1 to 5An electrostatic dust removal device includes a first electrode plate 21, a second electrode plate 22, and a charging assembly 1. Specifically, the gap between the first electrode plate 21 and the second electrode plate 22 forms an airflow channel, allowing air to enter from the upstream of the airflow channel, pass through the middle of the airflow channel, and exit from the downstream of the airflow channel. The projected portions of adjacent first electrode plates 21 and second electrode plates 22 overlap in the direction of airflow inlet or outlet, thereby forming an electric field between the first electrode plates 21 and the second electrode plates 22. The charging assembly 1 is disposed on the airflow channel to ionize the airflow. The airflow is adsorbed by the first electrode plate 21 or the second electrode plate 22. The air flowing through the airflow channel first passes through the charged component 1, where it is ionized into positive and negative ions by the extremely unstable electric field. The positive and negative ions further combine with the inhalable dust particles in the air, causing the dust particles to carry positive or negative charges. Then, it passes through the electric field 22 between the first electrode plate 21 and the second electrode plate, thereby adsorbing the positively and negatively charged inhalable dust particles onto the first electrode plate 21 and the second electrode plate 22, thus achieving the capture of inhalable dust particles and effectively purifying the air.

[0042] The airflow channel can include three parts: the first part is the gap between two adjacent first electrode plates 21, which is the upstream or downstream of the airflow channel; the second part is the gap between the first electrode plates 21 and the second electrode plates 22 whose projections overlap in the direction of airflow inlet or outlet, which is the middle of the airflow channel; and the third part is the gap between two adjacent second electrode plates 22, which is the upstream or downstream of the airflow channel.

[0043] The electrostatic dust removal device configured in the above manner can ionize dust particles in the air flowing through the airflow channel by the charging component 1, and then be adsorbed by the first electrode plate 21 or the second electrode plate 22, thereby achieving the effect of dust removal and air purification.

[0044] Please refer to Figure 3 The first electrode plate 21 and the second electrode plate 22 are configured as planar straight plates, and their projected portions overlap in the direction of airflow inlet or outlet. The area between the overlapping portions is the adsorption area. The gap between two adjacent first electrode plates 21 is the upstream or downstream of the airflow channel, and the gap between two adjacent second electrode plates 22 is the upstream or downstream of the airflow channel. In one possible implementation, such as Figure 3 The arrows in the diagram indicate the airflow direction. If the lower electrode plate is the first electrode plate 21 and the upper electrode plate is the second electrode plate 22, then the gap between the first electrode plates 21 can be the upstream 100 of the airflow channel. The overlapping portion of the projections of the first electrode plate 21 and the second electrode plate 22 in the direction of airflow inlet or outlet is the midstream 200 of the airflow channel. The gap between the second electrode plates 22 can be the downstream 300 of the airflow channel.

[0045] When the gap between two adjacent first electrode plates 21 is the ionization region of the airflow channel, the gap between two adjacent second electrode plates 22 is the outlet region of the airflow channel. At this time, the charging component 1 is positioned within the gap between the two adjacent first electrode plates 21. That is, the inlet of the airflow channel is located between the two adjacent first electrode plates 21, and the outlet of the airflow channel is located between the two adjacent second electrode plates 22. Airflow flows into the airflow channel from the gap between the two adjacent first electrode plates 21. Dust particles in the airflow are ionized into positive and negative ions by the electric field of the charging component 1. These ions then pass through the adsorption region between the first electrode plates 21 and the second electrode plates 22, thereby adsorbing positively and negatively charged inhalable dust particles onto the first electrode plates 21 and the second electrode plates 22. This captures the inhalable dust particles, effectively purifying the air. Finally, the airflow exits from the gap between the two adjacent second electrode plates 22.

[0046] When the gap between two adjacent second electrode plates 22 is the ionization region of the airflow channel, the gap between two adjacent first electrode plates 21 is the outlet region of the airflow channel. At this time, the charging component 1 is positioned within the gap between the two adjacent second electrode plates 22. That is, the inlet of the airflow channel is located between the two adjacent second electrode plates 22, and the outlet of the airflow channel is located between the two adjacent first electrode plates 21. Airflow enters the airflow channel from the gap between the two adjacent second electrode plates 22. Dust particles in the airflow are ionized into positive and negative ions by the electric field of the charging component 1. These ions then pass through the adsorption region between the first electrode plates 21 and the second electrode plates 22, thereby adsorbing positively and negatively charged inhalable dust particles onto the first electrode plates 21 and the second electrode plates 22. This captures the inhalable dust particles, effectively purifying the air. Finally, the airflow exits from the gap between the two adjacent first electrode plates 21.

[0047] In another embodiment, please refer to Figure 4 The dust collection component 2 is configured as an arc shape, and the charged component 1 is disposed on at least part of the arc where the dust collection component 2 is located, so that the whole is formed into a cylindrical shape or at least partially formed, which allows air with dust particles to enter from the circumferential side of the dust collection component 2, thus it can be applied to air purifiers with arc-shaped air inlets.

[0048] Air first passes through the charged component 1, where it is ionized into positive and negative ions by the highly unstable electric field. These ions then combine with inhalable dust particles in the air, causing the particles to acquire positive or negative charges. The air then passes through the dust collection component 2, where the positively and negatively charged inhalable dust particles are adsorbed, thus capturing them and effectively purifying the air. This design allows air carrying inhalable dust particles to flow in from its cylindrical side and be captured in the dust collection area, making it suitable for air purifiers with curved air inlets.

[0049] Please refer to Figure 1 , Figure 2 and Figure 4 The dust collection assembly 2 includes a first electrode plate 21 and a second electrode plate 22 uniformly arranged in a circumferential array. These two plates are positioned on different arcs and have a gap between them. The first electrode plate 21 and the second electrode plate 22 partially overlap in the circumferential direction. It can be understood that the first electrode plate 21 and the second electrode plate 22 being positioned on different arcs can mean that they are positioned on arcs with different radii (but with the same center), or that they are positioned on arcs with different centers, etc. When they are positioned on arcs with different radii (but with the same center), the first electrode plate 21 and the second electrode plate 22 have a gap in the radial direction of the arc. This gap is used to form a space for adsorbing dust particles. In some embodiments, multiple first electrode plates 21 are arranged in a circumferential array to form a circumference; in some embodiments, multiple second electrode plates 22 are arranged in a circumferential array to form a circumference. Multiple first electrode plates 21 and multiple second electrode plates 22 can be positioned on a circumference with the same center but different radii.

[0050] The first electrode plate 21 and the second electrode plate 22 partially overlap in the circumferential direction, forming a dust collection area in the overlapping part. The dust collection area can be rectangular or arc-shaped. The vertical distance between the first electrode plate 21 and the second electrode plate 22 is always consistent. Therefore, a uniform parallel electric field is formed in the area where the first electrode plate 21 and the second electrode plate 22 overlap. The direction of the electric field is from the second electrode plate 22 to the first electrode plate 21. In this area, the air flows in a straight line and is smoother. Positively charged inhalable dust particles passing through this area move to the first electrode plate 21 under the action of the electric field, and negatively charged dust particles move to the second electrode plate 22 under the action of the electric field, thus achieving the capture of inhalable dust particles.

[0051] The first electrode plate 21 can be located inside the second electrode plate 22 in the circumferential radial direction, or it can be located outside the second electrode plate 22 in the circumferential radial direction. There is no restriction on this, as long as a uniform parallel electric field is formed in the area where the first electrode plate 21 and the second electrode plate 22 overlap.

[0052] Furthermore, any two circumferentially adjacent first electrode plates 21 have a first gap, and any two circumferentially adjacent second electrode plates 22 have a second gap. The first gap and the second gap are arranged on different radii of the arc. That is, the first gap and the second gap are projected and staggered in the direction of airflow inlet or outlet. The charging assembly 1 includes multiple parallel charging units, which are inserted into the first gap or the second gap.

[0053] In one embodiment, when the first gap between two adjacent first electrode plates 21 serves as the inlet of the airflow channel, the second gap between two adjacent second electrode plates 22 serves as the outlet of the airflow channel. At this time, the charging component 1 is inserted into the first gap, and the gap between the overlapping portions of the first electrode plates 21 and the second electrode plates 22 in the circumferential direction forms the adsorption area. Airflow enters from the inlet of the airflow channel and is ionized into positive and negative ions by the electric field of the charging component 1 at the first gap. These positive and negative ions collide with inhalable dust particles, causing them to become charged. The charged inhalable dust particles then flow with the air into the adsorption area and are adsorbed. Finally, the airflow exits from the second gap, thus achieving effective air purification.

[0054] In another embodiment, when the second gap between two adjacent second electrode plates 22 serves as the inlet of the airflow channel, the first gap between two adjacent first electrode plates 21 serves as the outlet of the airflow channel. In this case, the charging component 1 is inserted into the second gap, and the gap between the overlapping portions of the first electrode plates 21 and the second electrode plates 22 in the circumferential direction forms the adsorption region. Airflow enters from the inlet of the airflow channel, is ionized into positive and negative ions by the electric field of the charging component 1 at the second gap, then flows through the adsorption region and is adsorbed. Finally, the airflow exits from the first gap, thus achieving effective air purification.

[0055] Based on the above embodiments, the charging unit is connected to a positive high-voltage power supply, the first electrode plate 21 is connected to a negative high-voltage power supply, and the second electrode plate 22 is connected to a negative low-voltage power supply or grounded; or, the second electrode plate 22 is connected to a negative high-voltage power supply, and the first electrode plate 21 is connected to a negative low-voltage power supply or grounded.

[0056] The charging unit is connected to a positive high-voltage power supply to ionize the airflow passing through it. When the first electrode plate 21 is connected to a negative high-voltage power supply, the second electrode plate 22 is connected to a negative low-voltage power supply or grounded to create a potential difference between the first electrode plate 21 and the second electrode plate 22, thereby generating an electric field. When the first electrode plate 21 is connected to a negative low-voltage power supply or grounded, the second electrode plate 22 is connected to a negative high-voltage power supply to create a potential difference between the first electrode plate 21 and the second electrode plate 22, thereby generating an electric field. There are no restrictions on the connection of the first electrode plate 21 and the second electrode plate 22, as long as a potential difference is formed between them.

[0057] Furthermore, the dust collection assembly 2 also includes a negative high-voltage plate 23, a first clamping member 24, a second clamping member 25, and a grounding plate 26. The first clamping member 24 is fixed on the negative high-voltage plate 23, and the first electrode plate 21 is connected to the negative high-voltage plate 23 through the first clamping member 24. The negative high-voltage plate 23 is connected to a negative DC high-voltage power supply. The second clamping member 25 is fixed on the grounding plate 26, and the second electrode plate 22 is connected to the grounding plate 26 through the second clamping member 25. The grounding plate 26 is externally grounded. Both the negative high-voltage plate 23 and the grounding plate 26 have a closed annular plate structure.

[0058] It is understood that multiple first clamping members 24 are uniformly fixed on the negative high voltage plate 23, and the multiple first clamping members 24 correspond one-to-one with multiple first electrode plates 21, thereby fixing the first electrode plates 21 to the negative high voltage plate 23. Each first electrode plate 21 is electrically connected to the negative high voltage plate 23 through an independent first clamping member 24. The negative high voltage plate 23 is externally connected to a negative DC high voltage power supply and introduces the negative DC high voltage into the first electrode plate 21 connected to it. Similarly, multiple second clamping members 25 are uniformly fixed on the grounding plate 26, and the multiple second clamping members 25 correspond one-to-one with multiple second electrode plates 22, thereby fixing the second electrode plates 22 to the grounding plate 26. Each second electrode plate 22 is electrically connected to the grounding plate 26 through an independent second clamping member 25, and the grounding plate 26 is externally grounded.

[0059] Among them, the negative high voltage sheet 23 is made of conductive material.

[0060] In one embodiment, please refer to Figure 4 The first electrode plate 21 and the second electrode plate 22 have a tile-shaped cross-section in the circumferential direction. Setting the first electrode plate 21 and the second electrode plate 22 to a tile shape can effectively improve their bending strength and prevent the first electrode plate 21 and the second electrode plate 22 from deforming during repeated disassembly and assembly.

[0061] In another embodiment, please refer to Figure 5 The first electrode plate 21 and the second electrode plate 22 have a V-shaped cross-section in the circumferential direction. The first electrode plate 21 is a V-shaped plate structure, and the second electrode plate 22 also has a V-shaped cross-section. The first electrode plate 21 and the second electrode plate 22 are parallel in the circumferential direction. This design helps the air flow more smoothly in a straight line in this area and simplifies the manufacturing process of the electrode plates. However, the first electrode plate 21 and the second electrode plate 22 can also adopt other shapes; there are no restrictions on this, as long as the aforementioned technical effects are achieved.

[0062] The radius of the circle containing the first electrode plate 21 is smaller than the radius of the circle containing the second electrode plate 22, and the first electrode plate 21 and the second electrode plate 22 are kept at a certain distance in the radial direction. The distance can be controlled within the range of 3-10mm. The number of the first electrode plate 21 and the second electrode plate 22 is the same, and the two are evenly staggered in the circumferential direction.

[0063] Please refer to Figure 4 The electric field generated by the charged unit corresponds to a sector A in the circumferential direction to charge the passing dust. The sector B, which overlaps with the first electrode plate 21 and the second electrode plate 22 in the circumferential direction, is used to adsorb the passing charged dust. The sector C, which corresponds to the gap between two adjacent first electrode plates 21 in the circumferential direction, is used to allow the clean air after dust removal to flow out.

[0064] Based on the arrangement of the first electrode plate 21 and the second electrode plate 22, their internal space can be divided into three types of sector regions: sector region A, sector region B, and sector region C. Sector region A corresponds to the adjacent gaps within the second electrode plate 22. This sector region contains a charged unit, and the region is also the sector region corresponding to the electric field generated by the charged unit in the circumferential direction. Air in this region is easily ionized into positive and negative ions by the highly unstable electric field. These positive and negative ions further combine with inhalable dust particles in the air, causing the dust particles to acquire positive or negative charges. B corresponds to the fan-shaped region where the second electrode plate 22 and the first electrode plate 21 overlap in the circumferential direction. Within this region, since the vertical distance between the second electrode plate 22 and the first electrode plate 21 remains constant, there is a uniform parallel electric field. The direction of the electric field is from the second electrode plate 22 to the first electrode plate 21. Positively charged inhalable dust particles passing through this region move to the first electrode plate 21 under the action of the electric field, while negatively charged dust particles move to the second electrode plate 22 under the action of the electric field, ultimately achieving the capture of inhalable dust particles. The fan-shaped region C corresponds to the fan-shaped region corresponding to the adjacent gaps inside the first electrode plate 21.

[0065] The arrows in the diagram indicate the path of air flowing through the electrostatic precipitator. Air carrying inhalable dust particles flows sequentially through sector A, sector B, and sector C. It becomes charged and polarized in sector A, and is then captured on the first electrode plate 21 or the second electrode plate 22 in sector B. Finally, it flows out of sector C as clean air.

[0066] Please refer to Figure 6The charging assembly 1 includes multiple charging units connected in parallel. These charging units are arranged on the same circumference as the second electrode plate 22, and can be inserted into the second gap of the second electrode plate 22. The multiple charging units are connected in parallel via a positive high-voltage plate 11, which is connected to a positive DC high-voltage power supply. By arranging the multiple charging units and the second electrode plate 22 on the same circumference, the electrostatic precipitator can be miniaturized.

[0067] It should be noted that the charged assembly 1 comprises multiple charged units. The number of charged units in this design is eight, but it can also be nine, ten, or even fewer; there is no limitation on this. The charged units are evenly distributed in the circumferential direction and are connected together by a positive high-voltage plate 11. The positive high-voltage plate 11 is made of conductive material, connected to an external positive DC high-voltage power supply, and conducts the positive DC high voltage into the charged units connected to it. In this design, the positive high-voltage plate 11 has a closed annular plate structure.

[0068] In one embodiment, the positive high voltage sheet 11 is a circular ring-shaped sheet structure, or the positive high voltage sheet 11 is an open-ring arc-shaped sheet structure.

[0069] It is understandable that the positive high voltage plate 11 can also be a ring-shaped plate structure or an open-loop arc-shaped plate structure that connects the charged units in sequence. There is no restriction on this, as long as the positive high voltage plate 11 can connect and energize multiple charged units.

[0070] Based on the above embodiment, the charging unit includes a connector 12, an electrode wire 13, an elastic element 14, and a protrusion 15 connected in series with the fixed frame 3. The connector 12 is connected to the positive high voltage plate 11. One end of the electrode wire 13 is connected to the connector 12, and the other end of the electrode wire 13 is connected to one end of the elastic element 14. The other end of the elastic element 14 is connected to the protrusion 15. The elastic element 14 is used to keep the electrode wire 13 in a taut state.

[0071] It should be noted that the connector 12 is used to connect the positive high voltage plate 11 and the electrode wire 13 to conduct electricity. However, when the electrode wire 13 is connected to a positive DC high voltage, an extremely non-uniform electric field is generated near the electrode wire 13, causing the air near the electrode wire 13 to ionize and form plasma. The high-energy electrons and positive ions in the plasma collide with the inhalable dust particles and become charged. The charged inhalable dust particles flow into the dust collection assembly 2 with the air and are captured.

[0072] The connector 12 can be a solder joint, such as the solder joint formed by welding the upper end of the electrode wire 13 to the positive high voltage plate 11, or it can be a conductive metal sleeve with its lower end interference-fitted to the electrode wire 13 and its upper end inserted into or welded to the positive high voltage plate 11. The electrode wire 13 is a thin metal wire, made of a highly conductive metal such as tungsten or copper wire, with a diameter between 0.05mm and 0.3mm. The elastic element 14 has its upper end interference-fitted to the electrode wire 13 and its lower end fixedly connected to the protrusion 15. The elastic element 14 is made of a highly elastic material and is cylindrical or made into a highly elastic structure, such as a spring structure, so that the elastic element 14 can change its length under stress.

[0073] In the above embodiment, multiple electrode wires 13 are arranged in a circular array around the axis of the fixed frame 3. The electrode wires 13 and the second electrode plate 22 are arranged on the same circumference. The electrode wires 13 are inserted in the gaps of the second electrode plate 22 and maintain a certain distance from the second electrode plate 22 on the circumference.

[0074] It is understandable that the same number of second electrode plates 22 are sequentially inserted into the gaps of the electrode wires 13 and maintain a certain distance from the electrode wires 13, and the second electrode plates 22 and the electrode wires 13 are kept on the same radius circle, which can minimize the size of the electrostatic dust removal device.

[0075] In a preferred embodiment, the elastic element 14 and the protrusion 15 are coaxial cylindrical structures, and the diameter of the protrusion 15 is larger than the diameter of the elastic element 14.

[0076] It should be noted that the protrusion 15 is cylindrical in this design, and its diameter is larger than that of the elastic element 14. The protrusion 15 and the elastic element 14 can be directly machined from the same material into one piece.

[0077] Please refer to Figure 7 , Figure 8 , Figure 9 and Figure 10 In some embodiments, a fixed frame 3 is also included. The charged unit is connected to the fixed frame 3 via a positive high-voltage plate 11. The first electrode plate 21 is connected to the fixed frame 3 via a negative high-voltage plate 23, and the second electrode plate 22 is connected to the fixed frame 3 via a grounding plate 26. Both the negative high-voltage plate 23 and the grounding plate 26 are closed annular plate structures. The fixed frame 3 includes an upper frame 31 and a lower frame 32, both of which are annular.

[0078] It is understandable that the fixed frame 3 is arranged at the upper and lower ends of the charged assembly 1 and the dust collection assembly 2 along the axial direction, and fixes and constrains the charged assembly 1 and the dust collection assembly 2. The upper frame 31 and the lower frame 32 in the fixed frame 3 are annular. The protrusion 15 can be fixed on the fixed frame 3 without axial displacement. The elastic characteristics of the elastic element 14 allow the charged unit to be stretched beyond the initial length in the axial direction for fixation, thereby keeping the electrode wire 13 in the charged unit always in a taut state.

[0079] In the above embodiment, the upper frame 31 and the lower frame 32 are provided with a wiring groove for connecting to electricity and a positioning groove for fixing the charged assembly 1 and the dust collection assembly 2. The positioning groove and the wiring groove are partially connected. The connection between the positioning groove and the wiring groove means that the positioning groove and the wiring groove are axially connected, but their sizes are different.

[0080] The wiring groove of the upper frame 31 includes a positive high-voltage plate groove 311 and a negative high-voltage plate groove 312. The positioning groove of the upper frame 31 includes a first ground plate groove 313, a positive pressure hole 314, and a first negative pressure plate groove 315. The positive high-voltage plate groove 311 and the negative high-voltage plate groove 312 are disposed on the upper end surface of the upper frame 31, and the two are concentric annular grooves. The positive high-voltage plate groove 311 is uniformly provided with round holes corresponding to the connector 12, and the negative high-voltage plate groove 312 is uniformly provided with square grooves corresponding to the first clamping member 24. The first grounding plate groove 313, the positive pressure hole 314, and the first negative pressure plate groove 315 are disposed on the lower end face of the upper frame 31. The first grounding plate groove 313 and the first negative pressure plate groove 315 are arc-shaped grooves, and the circumference of the first grounding plate groove 313 is concentric with the circumference of the first negative pressure plate groove 315. The positive pressure hole 314 is a circular hole and communicates with the positive high pressure plate groove 311. The first negative pressure plate groove 315 communicates with the negative high pressure plate groove 312, and the positive high pressure plate groove 311 communicates with the first grounding plate groove 313. The positive pressure hole 314 is inserted between two adjacent first grounding plate grooves 313.

[0081] It should be noted that the positive high-voltage plate groove 311 on the upper end face of the upper frame 31 is used to fix the positive high-voltage plate 11, and the negative high-voltage plate groove 312 is used to fix the negative high-voltage plate 23. The first grounding plate groove 313 on the lower end face of the upper frame 31 is used to fix the second electrode plate 22, the positive pressure hole 314 is used to fix the connector 12 on the charging assembly 1, and the first negative pressure plate groove 315 is used to fix the first electrode plate 21. A portion of the positive high-voltage plate groove 311 on the upper end face of the upper frame 31 can extend to the positive pressure hole 314, and a portion of the negative high-voltage plate groove 312 can extend to the first negative pressure plate groove 315.

[0082] The wiring groove of the lower frame 32 includes a grounding plate groove 324, and the positioning groove of the lower frame 32 includes a second grounding plate groove 321, a positive pressure side groove 322, and a second negative pressure plate groove 323. The second grounding plate groove 321 and the second negative pressure plate groove 323 are located on the upper end face of the lower frame 32, and the grounding plate groove 324 is located on the lower end face of the upper frame 31. The second grounding plate groove 321 and the grounding plate groove 324 are connected. The grounding plate groove 324 is an annular groove, and square grooves corresponding to the second clamping member 25 are evenly provided on the grounding plate groove 324. The second grounding plate groove 321 and the second negative pressure plate groove 323 are arc-shaped grooves, and the circumference of the second grounding plate groove 321 is concentric with the circumference of the second negative pressure plate groove 323.

[0083] It should be noted that the second grounding plate groove 321 on the upper end face of the lower frame 32 is used to fix the second electrode plate 22, the positive pressure side groove 322 is used to fix the protrusion 15 on the charging assembly 1, the second negative pressure plate groove 323 is used to fix the first electrode plate 21, the grounding plate groove 324 on the lower end face of the lower frame 32 is used to fix the grounding plate 26, and a part of the grounding plate groove 324 can extend to the second grounding plate groove 321 on the upper end face of the lower frame 32.

[0084] The positive pressure side groove 322 is located on the outer periphery of the lower frame 32. The positive pressure side groove 322 can be an inverted T-shaped groove for installing the elastic element 14 and the protrusion 15. The groove opening of the positive pressure side groove 322 is flush with the upper end face of the lower frame 32. When installing the protrusion 15, the electrode wire 13 is pulled axially to stretch the elastic element 14, so that the protrusion 15 can be inserted into the positive pressure side groove 322 from the side of the lower frame. After the protrusion 15 is inserted into the positive pressure side groove 322, the elastic element 14 returns to the state before stretching, thereby driving the protrusion 15 to move axially, so that the protrusion 15 is locked in the positive pressure side groove 322 axially, thereby preventing the protrusion 15 from sliding out of the positive pressure side groove 322.

[0085] The elastic element 14 can be a spring, a compression spring, or other structures; there are no restrictions on this, as long as the above-mentioned technical effects can be achieved.

[0086] In summary, the electrostatic dust removal device provided by this utility model allows air carrying inhalable dust particles to flow in from its cylindrical side and be captured in a dust collection area with equal spacing, so that it can be applied to small tabletop air purifiers with cylindrical side air intake.

[0087] In addition to the electrostatic dust removal devices disclosed in the above embodiments, this utility model also provides an air cleaning device, which includes an air inlet and an air outlet. The air outlet is equipped with the aforementioned electrostatic dust removal device. The structure of other parts of this air cleaning device is described in the prior art and will not be repeated here. Air cleaning devices include, but are not limited to, air purifiers, humidifiers with purification functions, wet electrostatic dust collectors, dry electrostatic dust collectors, industrial dust removal equipment, household mite removers with dust removal functions, vehicle air purifiers, central air conditioning systems using electrostatic dust removal technology, laboratory ventilation equipment, and hospital operating room purification equipment.

[0088] It should be noted that in this specification, relational terms such as first and second are used only to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.

[0089] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0090] The electrostatic dust removal device and air cleaning equipment provided by this utility model have been described in detail above. Specific examples have been used to illustrate the principle and implementation of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. An electrostatic precipitation device, characterized by comprising: include: The first electrode plate (21) and the second electrode plate (22) are separated by a gap to form an airflow channel; the projections of adjacent first electrode plates (21) and second electrode plates (22) overlap in the direction of airflow inlet or outlet. A charged component (1) is disposed on the airflow channel for ionizing the airflow, and the ionized airflow is adsorbed by the first electrode plate (21) or the second electrode plate (22).

2. The electrostatic precipitation device of claim 1, wherein Multiple first electrode plates (21) and multiple second electrode plates (22) are arranged in a circumferential array, and are set on different arcs.

3. The electrostatic precipitation device of claim 2, wherein, Any two circumferentially adjacent first electrode plates (21) have a first gap, and any two circumferentially adjacent second electrode plates (22) have a second gap. The first gap and the second gap are set on different radii of the arc.

4. The electrostatic precipitation device of claim 3, wherein The charged assembly (1) includes multiple charged units connected in parallel, which are inserted into the first gap or the second gap.

5. The electrostatic precipitation device according to any one of claims 1 to 4, characterized in that The first electrode plate (21) and the second electrode plate (22) are arc-shaped tiles, or the first electrode plate (21) and the second electrode plate (22) are V-shaped sheets.

6. The electrostatic precipitator of claim 4, wherein The charging unit is connected to a positive high voltage power supply, the first electrode plate (21) is connected to a negative high voltage power supply, the second electrode plate (22) is connected to a negative low voltage power supply or grounded, or the second electrode plate (22) is connected to a negative high voltage power supply, the first electrode plate (21) is connected to a negative low voltage power supply or grounded.

7. The electrostatic precipitation device of claim 6, wherein It also includes a fixing frame (3) for connecting the charged assembly (1) with the first electrode plate (21) and the second electrode plate (22). The fixing frame (3) includes an upper frame (31) and a lower frame (32). The upper frame (31) and the lower frame (32) are provided with wiring grooves for connecting to electricity and positioning grooves for fixing the charged assembly (1), the first electrode plate (21) and the second electrode plate (22). The positioning grooves are partially connected to the wiring grooves.

8. The electrostatic precipitation device of claim 7, wherein, The charged unit includes an elastic element (14) and an electrode wire (13) connected to the elastic element (14), the elastic element (14) being used to keep the electrode wire (13) in a taut state.

9. The electrostatic precipitator of claim 8, wherein, The charged unit also includes a protrusion (15) connected to the elastic member (14), and the outer peripheral edge of the lower frame (32) is provided with a positive pressure side groove (322) for mounting the elastic member (14) and the protrusion (15).

10. An air cleaning apparatus characterized by comprising: It includes an air inlet and an air outlet, and an electrostatic dust removal device as described in any one of claims 1-9 disposed at the air inlet.

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