Self-maintaining electrostatic precipitator charging post

Abstract

The utility model relates to charging pile technical field, and disclose a kind of self-maintenance electrostatic precipitation charging pile, including charging pile box, the charging pile box is divided into two parts inside and outside, inside part is ventilation cooling passage, outside part installs electronic module, the inside part of charging pile box is provided with air inlet and air outlet in two sides end surface;Air inlet is provided with ionizing plate, dust-removal electric network and cleaning box, the ionizing plate is provided with several, by rotatable dust-removal net of air inlet in the charging pile box is installed, if environment dust is more, can pass through the rotation speed of dust-removal electric network by adjusting motor speed to speed up, ensure dust collection effect;If dust is less, then reduce speed or start regularly, reduce energy consumption while ensuring the cleanliness of electrode net.The whole process does not need to disassemble and clean electrode net, both improve the maintenance convenience of equipment, also avoid the component loss caused by frequent disassembly, effectively solve the problem that dust-removal net is easy to block, cleaning is complicated and affects heat dissipation.

Description

Technical Field

[0001] This utility model relates to the field of charging pile technology, specifically a self-maintaining electrostatic dust removal charging pile. Background Technology

[0002] With the rapid popularization of electric vehicles, charging stations have become a core infrastructure. Charging stations are usually installed in open or semi-open environments (such as roadsides and parking lots). Their internal power electronic components (such as power modules and rectifiers) generate a lot of heat when operating, requiring continuous forced air cooling for heat dissipation. The air inlet of the enclosure is the main channel for outside air to enter, but it also accumulates a lot of dust and other pollutants.

[0003] Nowadays, to reduce dust ingress, single or multiple layers of metal or non-woven fabric filters are installed at the air inlet. However, the filters have small pores and are quickly clogged by dust, causing a sharp increase in airflow resistance, a significant decrease in heat dissipation efficiency, and potentially leading to overheating, derating, or even malfunction of the equipment. Furthermore, maintenance requires regular (usually very frequent) manual disassembly, cleaning, or replacement, resulting in high maintenance costs and extremely poor convenience. Utility Model Content

[0004] To address the aforementioned problems in the existing technology, this utility model provides a self-maintaining electrostatic dust removal charging pile, which has the advantage of automatically cleaning dust from the dust removal screen.

[0005] To achieve the above objectives, this utility model provides the following technical solution: it includes a charging pile housing, which is divided into inner and outer parts. The inner part is a ventilation and cooling channel, and the outer part is equipped with an electronic module. The two end faces of the inner part of the charging pile housing are provided with air inlets and air outlets. The air inlet is equipped with an ionization plate, a dust removal grid, and a cleaning box. Several ionization plates are installed at an angle in the air duct of the air inlet. Part of the dust removal grid corresponds to all the ionization plates, and part of it is located in the cleaning box. Two symmetrical electrode side plates are also fixed to the inner wall of the air inlet. The dust removal grid is movably mounted on the electrode side plates via a rotating shaft, which is driven by a motor.

[0006] Preferably, a plurality of carbon brush fixing blocks are fixedly installed on the inner side of the electrode side plate, the carbon brush fixing blocks are clamped on the dust removal grid and in contact with the dust removal grid, and the electrode side plate is positioned above the cleaning box.

[0007] Preferably, the dust removal grid consists of several grids, and each pair of grids is fixedly installed together by a connector, which is an insulator.

[0008] Preferably, the width of the dust removal grid is greater than the width of the carbon brush fixing block.

[0009] Preferably, the bottom of the ionization plate is provided with a number of electrode needles for generating negative charges.

[0010] Preferably, the cleaning box is hollow inside and has an opening at the top. The dust removal grid is located inside the cleaning box through this opening, and there is a gap between the edge of the opening of the cleaning box and the dust removal grid.

[0011] Preferably, the cleaning box is also equipped with a cleaning brush, which is clamped on both sides of the dust removal grid.

[0012] Preferably, the outside of the cleaning box is also provided with a movable cleaning door, through which a dust collection box is placed into the cleaning box.

[0013] Preferably, the air outlet is provided with an air outlet grille and a fan mounting plate. The fan mounting plate is located on the air outlet grille and has at least two mounting holes for installing an exhaust fan.

[0014] Compared with the prior art, this utility model provides a self-maintaining electrostatic dust removal charging pile, which has the following beneficial effects: 1. This self-maintaining electrostatic precipitator charging station features a rotatable dust filter installed at the air inlet inside the charging station housing. If the environment is dusty, the motor speed can be adjusted to increase the rotation speed of the dust filter grid, ensuring effective dust collection. If there is less dust, the speed can be reduced or the system can be started periodically, reducing energy consumption while maintaining the cleanliness of the electrode grid. The entire process requires no disassembly or cleaning of the electrode grid, improving equipment maintenance convenience and avoiding component wear caused by frequent disassembly. This effectively solves the problems of dust filter clogging, cumbersome cleaning, and impaired heat dissipation. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the half-section structure of this utility model; Figure 3 This is a half-section front view of the structure of this utility model; Figure 4 This utility model Figure 4 Enlarged structural diagram at point A; Figure 5 This is a schematic diagram of the dust removal grid structure of this utility model.

[0016] In the diagram: 10. Charging pile housing; 11. Operating door; 20. Ionization plate; 21. Dust removal grid; 211. Rotating shaft; 212. Connector; 22. Cleaning box; 221. Cleaning door; 23. Cleaning brush; 24. Electrode side plate; 241. Carbon brush fixing block; 30. Air outlet grille; 31. Fan fixing plate. Detailed Implementation

[0017] 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.

[0018] like Figure 1-5 As shown, the charging pile box 10 is divided into inner and outer parts. The inner part is a ventilation and cooling channel, and the outer part is where electronic modules are installed. The outer part is equipped with an openable operation door 11. By setting up a complex airflow channel, the electronic modules inside the charging pile box 10 can be cooled independently. The inner part of the charging pile box 10 has air inlets and air outlets on both sides. The air outlet is equipped with an air outlet grille 30 and a fan mounting plate 31. The fan mounting plate 31 is located on the air outlet grille 30 and has at least two mounting holes for installing an exhaust fan to accelerate airflow and improve the cooling effect inside the charging pile box 10.

[0019] The air inlet is equipped with ionization plates 20, a dust collection grid 21, and a cleaning box 22. Several ionization plates 20 are installed at an angle in the air duct of the air inlet, and the spacing between the ionization plates 20 is larger than that of a typical charging pile grille. The mesh size of the dust collection grid 21 is also larger than that of a typical dust collector, increasing overall airflow and volume, thereby improving heat dissipation within the charging pile housing 10. Part of the dust collection grid 21 corresponds to all the ionization plates 20, while another part is located within the cleaning box 22. Two symmetrical electrode side plates 24 are also fixed to the inner wall of the air inlet. The top of the electrode side plates 24 is sealed, and the bottom is blocked by the cleaning box 22, preventing airflow from passing through the top of the electrode side plates 24. The dust collection grid 21 flows in from both sides and is movably mounted on the electrode side plate 24 via rotating shafts 211. There are two rotating shafts 211, located on the electrode side plate 24 and the cleaning box 22 respectively, and the two rotating shafts 211 rotate synchronously. This can be achieved by belt drive or two synchronous motors. The rotating shafts 211 are driven by motors with low speeds, requiring up to one hour per revolution, making the dust collection grid 21 rotate very slowly, allowing it to fully adsorb dust. If there is a lot of dust in the environment, the speed can be increased appropriately. When there is less dust in the environment, the speed can be further reduced, or the rotation can be stopped directly, so that the rotating shafts 211 can be started at regular intervals, once a day or every few days. Each start makes the entire dust collection grid 21 rotate half a revolution.

[0020] Several carbon brush fixing blocks 241 are fixedly installed on the inner side of the electrode side plate 24. The carbon brush fixing blocks 241 are clamped on and in contact with the dust removal grid 21. The electrode side plate 24 is positioned above the cleaning box 22. The width of the dust removal grid 21 is greater than the width of the carbon brush fixing blocks 241. The corresponding carbon brush fixing blocks 241 are electrically connected to an external power source, while the left and right rows of carbon brush fixing blocks 241 are respectively connected to the power source. The negative voltage is transmitted to the dust removal grid 21 through the slip ring-carbon brush assembly. On the top, the alternating positive and negative metal mesh creates a strong electrostatic field between the dust collection grids 21 on both sides. The dust collection grids 21 on both sides have a positive electrode mesh (dust collecting electrode) and a negative electrode mesh (repulsion electrode), respectively. The collecting electrode is located on the side away from the ionization plate 20, and the repulsion electrode is located on the side closer to the ionization plate 20. Under the action of the strong electric field, the negatively charged dust particles eventually collide with and are firmly adsorbed onto the surface of the dust collecting electrode plate (metal mesh), allowing clean air to continue to pass through and enter the charging pile box 10.

[0021] The dust removal grid 21 consists of several grids, with each pair of grids fixed together by connectors 212. Connectors 212 are insulators, preventing interference between grids. When the dust removal grid 21 enters the cleaning box 22, the electric field is interrupted, ensuring proper dust removal. Furthermore, individual carbon brush holders 241, matched to the dust removal grid 21, allow for precise control of the electric field strength, automatically adjusting according to the distribution of dust in the environment. The carbon brush holders 241 can also be two sets of strip-shaped clamps, holding the dust removal grid 21 and ensuring simultaneous energization. Conductive blocks are installed on both sides of the dust removal grid 21 where it contacts the carbon brush holders 241. Because the dust removal grid 21 rotates extremely slowly, these conductive blocks maintain stable contact, experience slow wear, and have a very long service life.

[0022] The bottom of the ionization plate 20 is equipped with several electrode needles to generate negative charges. An extremely high DC voltage (typically several thousand to tens of thousands of volts) is applied to the electrode needles, causing the surrounding air to ionize and generate a large number of positive ions and free electrons. Due to the negative voltage on the electrode needles, the free electrons are rapidly repelled, while the positive ions are attracted to the electrode needles and neutralized. These repelled free electrons attach to neutral air molecules (such as oxygen and carbon dioxide), forming a large number of negative ions. Dust particles flowing through this area in the air frequently collide with these negative ions, thus acquiring a negative charge.

[0023] The cleaning box 22 is hollow inside with an opening at the top. The dust removal grid 21 is located inside the cleaning box 22 through this opening. There is a gap between the edge of the opening of the cleaning box 22 and the dust removal grid 21, allowing the dust-laden grid 21 to enter. When the dust-laden grid 21 enters the cleaning box 22, the dust will fall off naturally without being affected by the electric field. Because the dust removal grid 21 rotates very slowly, the dust will gradually settle inside the cleaning box 22. Only a small amount of dust will drift away from the cleaning box 22. The dust that drifts away from the cleaning box 22 will still be captured by the externally charged dust removal grid 21 and re-enter the cleaning box 22.

[0024] The cleaning box 22 is also equipped with cleaning brushes 23, which are clamped on both sides of the dust removal grid 21. The cleaning brushes 23 themselves do not slide. The dust removal grid 21 rotates counterclockwise. During the rotation of the dust removal grid 21, the dust remaining on the dust removal grid 21 is brushed off. Because the dust removal grid 21 rotates slowly, the brushing action is gentle, and the dust does not float away significantly. Moreover, as the dust removal grid 21 continues to rotate into the area of ​​the electrode side plate 24, an electric field is generated, which repels the dust removal grid 21 at the electrode (negative electrode). If a small amount of dust remains, the repulsive electrode will repel the charged dust, causing it to continue moving with the airflow and be captured again by the dust collection electrode (positive electrode) dust collection grid 21. This thoroughly cleans the dust collection grid 21 of the repulsive electrode. As the entire dust collection grid 21 continues to rotate, it can always maintain a clean state for adsorbing dust, without the need for frequent disassembly and cleaning to keep the dust collection screen clean. This avoids the problem of excessive dust filtered by the dust collection screen not being cleaned in time, which could affect the heat dissipation of the charging pile box 10.

[0025] The cleaning box 22 is equipped with a movable cleaning door 221 on its outer side. A dust collection box is placed inside the cleaning box 22 through the cleaning door 221. The cleaning door 221 is a sliding door or a pull-out baffle, which can be opened manually or electrically. A weight sensor is installed at the bottom of the dust collection box. When the weight of dust inside the dust collection box reaches a preset threshold, it will trigger an indicator light or remotely push a cleaning signal, facilitating timely replacement by maintenance personnel. The inner wall of the dust collection box is covered with an anti-static coating to prevent dust from adhering to the box wall due to static electricity and making it difficult to empty. The box body is made of transparent material, allowing for direct observation of the dust accumulation inside.

[0026] By installing a rotatable dust filter at the air inlet inside the charging pile housing 10, the rotation speed of the dust filter grid 21 can be increased by adjusting the motor speed if there is a lot of dust in the environment, ensuring the dust collection effect; if there is less dust, the speed can be reduced or the grid can be started at a set time, reducing energy consumption while ensuring the cleanliness of the electrode grid. The entire process does not require disassembly and cleaning of the electrode grid, which not only improves the convenience of equipment maintenance but also avoids component wear caused by frequent disassembly, effectively solving the problems of dust filter clogging, cumbersome cleaning, and impaired heat dissipation.

[0027] Working principle: When in use, an exhaust fan is installed on the fan mounting plate 31. An air duct is provided inside the charging pile box 10, so that the ionization plate 20 on the charging pile box 10 is the air inlet and the air outlet grille 30 is the air outlet. When the exhaust fan is turned on, the airflow enters the charging pile box 10 through the ionization plate 20. The dust carried by the airflow will also flow in through the ionization plate 20. When the dust passes through the ionization plate 20, the negative charge released by the electrode needles on the ionization plate 20 is carried by the dust.

[0028] Simultaneously, the carbon brush fixing blocks 241 on both sides of the dust collection grid 21 are energized, creating an electric field between the two dust collection grids 21. One side of the dust collection grid 21 is the dust collecting electrode (positive electric field electrode), and the other side is the repulsive electrode (negative electric field electrode). According to the principle that like charges attract and unlike charges repel, when negatively charged dust passes through the dust collection grid 21, it will be attracted by the positive electrode of the dust collection grid 21. Then, the dust collection grid 21 is rotated by the rotating shaft 211, and the dust-laden dust collection grid 21 gradually moves into the cleaning box 22. While inside the cleaning box 22, the dust collection grid 21... When the carbon brush holder 241 is disconnected, the electric field disappears, and the dust falls naturally into the dust collection box inside the cleaning box 22. The residual dust still stuck to the integrated mesh is brushed off by the cleaning brush 23. The relatively clean dust removal grid 21 rotates back to the area of ​​the electrode side plate 24, contacts the carbon brush holder 241, and re-establishes the electric field for continued use to adsorb dust. This cycle repeats, eliminating the need for the tedious operation of manually disassembling the dust collection plate for cleaning. Staff only need to periodically open the cleaning door 221 to replace or clean the dust collection box inside the cleaning box 22.

[0029] In summary, this self-maintaining electrostatic dust removal charging station utilizes a rotatable dust removal screen installed at the air inlet within the charging station housing 10. If the environment is dusty, the rotation speed of the dust removal grid 21 can be increased by adjusting the motor speed to ensure effective dust collection. If there is less dust, the speed can be reduced or the system can be started periodically, reducing energy consumption while maintaining the cleanliness of the electrode screen. The entire process eliminates the need to disassemble and clean the electrode screen, improving equipment maintenance convenience and avoiding component wear caused by frequent disassembly. This effectively solves the problems of dust removal screen clogging, cumbersome cleaning, and impaired heat dissipation.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A self-maintaining electrostatic dust removal charging pile, comprising a charging pile housing (10), wherein the charging pile housing (10) is divided into inner and outer parts, the inner part being a ventilation and cooling channel, and the outer part being an electronic module installed, characterized in that: The inner side of the charging pile box (10) is provided with air inlets and air outlets on both sides. The air inlet is provided with an ionization plate (20), a dust removal grid (21) and a cleaning box (22). There are several ionization plates (20), which are installed at an angle in the air duct of the air inlet. Part of the dust removal grid (21) corresponds to all the ionization plates (20), and part of it is located in the cleaning box (22). Two symmetrical electrode side plates (24) are also fixed on the inner wall of the air inlet. The dust removal grid (21) is movably installed on the electrode side plate (24) through a rotating shaft (211), which is driven by a motor.

2. The self-maintaining electrostatic precipitator charging pile according to claim 1, characterized in that: A number of carbon brush fixing blocks (241) are fixedly installed on the inner side of the electrode side plate (24). The carbon brush fixing blocks (241) are clamped on the dust removal grid (21) and in contact with the dust removal grid (21). The electrode side plate (24) is located above the cleaning box (22).

3. The self-maintaining electrostatic dust removal charging pile according to claim 2, characterized in that: The dust removal grid (21) consists of several grids, and each pair of grids is fixedly installed together by a connector (212), which is an insulator.

4. The self-maintaining electrostatic dust removal charging pile according to claim 3, characterized in that: The width of the dust removal grid (21) is greater than the width of the carbon brush fixing block (241).

5. The self-maintaining electrostatic precipitator charging pile according to claim 1, characterized in that: The bottom of each ionization plate (20) is provided with several electrode needles for generating negative charges.

6. The self-maintaining electrostatic dust removal charging pile according to claim 1, characterized in that: The cleaning box (22) is hollow inside and has an opening at the top. The dust removal grid (21) is located inside the cleaning box (22) through this opening. The edge of the opening of the cleaning box (22) is close to the dust removal grid (21) and there is a gap between the opening and the dust removal grid (21).

7. A self-maintaining electrostatic precipitator charging pile according to claim 6, characterized in that: The cleaning box (22) is also equipped with a cleaning brush (23), which is clamped on both sides of the dust removal grid (21).

8. A self-maintaining electrostatic precipitator charging pile according to claim 6, characterized in that: The cleaning box (22) is also provided with a movable cleaning door (221) on the outside, through which a dust collection box is placed into the cleaning box (22).

9. A self-maintaining electrostatic precipitator charging pile according to claim 1, characterized in that: The air outlet is provided with an air outlet grille (30) and a fan mounting plate (31). The fan mounting plate (31) is located on the air outlet grille (30) and has at least two mounting holes for installing an exhaust fan.

Images