Intelligent dust removal type electric energy metering box

Abstract

The application discloses an intelligent dust-removing type electric energy metering box, and relates to the technical field of electric energy metering boxes.The electric energy metering box comprises a metering box body, two protective doors are arranged on the side of the metering box body, a first cavity and a second cavity are arranged in the metering box body, an electric energy meter and a small circuit breaker are arranged in the first cavity, a plastic shell type circuit breaker is arranged in the second cavity, a heat dissipation fan is fixed to the side of the metering box body, and a controller is fixed to the side of the metering box body, away from the heat dissipation fan.The air inlet of the air inlet pipe is intelligently monitored in real time through the wind speed sensor.When the air inlet cannot meet the heat dissipation demand, the driving motor is started, the cleaning brush is reciprocally moved, dust attached to the dust screen is automatically and intelligently cleaned, the dust on the dust screen is reduced, the permeability of the dust screen is ensured, and the influence of the dust screen blockage on the heat dissipation of the whole metering box can be effectively avoided.

Description

Technical Field

[0001] This application relates to the field of electricity metering box technology, and in particular to an intelligent dust-removing electricity metering box. Background Technology

[0002] An electricity metering box is a core device in a power system used to measure electricity consumption. It mainly consists of a box casing, a chamber structure, an electricity meter, circuit breakers (such as miniature circuit breakers and molded case circuit breakers), and terminal blocks. Its core function is to accurately record the electricity usage of users or electricity-consuming units, providing reliable data support for electricity billing, load management, and electricity monitoring. The box casing is typically made of high-strength, corrosion-resistant materials, possessing excellent insulation and protective performance. It can adapt to different indoor and outdoor installation environments and is widely used in various electricity consumption scenarios such as residential buildings, commercial buildings, and industrial plants. It is a crucial infrastructure for ensuring accurate electricity metering and safe and stable electricity use.

[0003] An existing Chinese patent (application publication number: CN116247522A) discloses an electricity metering box comprising a main body and a door. One side of the door is hinged to the main body, and a lock / switch is provided on the other side of the door. An electricity meter mounting mechanism is also installed inside the main body for mounting the electricity meter. The electricity meter mounting mechanism includes a parallel upper support plate and a lower support plate, both of which have multiple rows of mounting holes arranged from top to bottom. Each row of mounting holes has multiple holes extending along the direction of the upper or lower support plate. These mounting holes correspond to the mounting holes on the electricity meter. This design is applicable to the installation of different models of electricity meters, improving applicability.

[0004] To reduce the amount of external dust entering the electricity metering box through the heat dissipation holes and to prevent dust from adhering to the surface of electrical components and affecting their performance or causing safety hazards, existing electricity metering boxes generally have dust screens installed at the air intake and heat dissipation channels. However, if the electricity metering box is in operation for a long time, or in environments with high dust concentrations such as outdoors, construction sites, and mining areas, a large amount of dust will gradually adhere to the surface of the dust screen. As the amount of dust accumulates, the permeability of the dust screen will decrease significantly, resulting in insufficient air intake, disrupting the original heat dissipation balance of the metering box, affecting the heat dissipation efficiency of the cooling fan, and potentially causing the temperature inside the box to rise, which will adversely affect the metering accuracy and service life of components such as the electricity meter. Summary of the Invention

[0005] The purpose of this application is to address the problem mentioned in the background art that if an electricity metering box is in operation for a long time, or in an environment with high dust concentration such as outdoors, construction sites, or mining areas, a large amount of dust will gradually accumulate on the surface of the dustproof net, resulting in insufficient air intake, which will affect the heat dissipation of the metering box and affect its normal use. This application provides an intelligent dust-removing electricity metering box.

[0006] To achieve the above objectives, this application specifically adopts the following technical solution:

[0007] An intelligent dust-removing electricity metering box includes a metering box body with two protective doors installed on its side. The metering box body has a first chamber and a second chamber inside. An electricity meter and a miniature circuit breaker are installed inside the first chamber, and a plastic-cased circuit breaker is installed inside the second chamber. A cooling fan is fixed to the side of the metering box body. A controller is fixed to the side of the metering box body away from the cooling fan. An air inlet pipe is fixed to the end of the metering box body away from the cooling fan. A dustproof net is fixed inside the air inlet pipe, and a wind speed sensor for monitoring wind speed is also fixed inside the air inlet pipe. The controller is electrically connected to the cooling fan and the wind speed sensor. A cleaning structure for cleaning the dustproof net is provided inside the air inlet pipe, and a backflushing structure for backflushing dust is provided at the upper end of the air inlet pipe.

[0008] By adopting the above technical solution, when the electricity metering box is put into use, the electrical components are installed inside the first and second chambers, followed by wiring connections and debugging. Once all parameters are verified to be correct, it can be officially put into operation. During equipment operation, the cooling fan is activated to dissipate heat and ensure the metering box is always in a suitable cooling environment. With long-term use, dust will accumulate on the dust filter. When the wind speed sensor detects that the airflow is below the preset range, it sends a signal to the controller. Upon receiving the signal, the controller activates the cleaning and back-blowing mechanisms to clean the dust from the dust filter, ensuring its permeability.

[0009] Furthermore, the cleaning structure includes a mounting rod installed inside the air inlet duct, a cleaning brush fixed to the side of the mounting rod, the cleaning brush being in contact with the dustproof mesh, a first mounting groove being opened inside the air inlet duct, a first bidirectional lead screw being rotatably connected inside the first mounting groove, the upper end of the first bidirectional lead screw penetrating the air inlet duct, a first nut seat fitted on the first bidirectional lead screw, the first nut seat being fixedly connected to the mounting rod, and a mounting housing being fixed to the upper end of the air inlet duct, the mounting housing containing a drive assembly.

[0010] By adopting the above technical solution, the cleaning structure can automatically and intelligently clean the dust adhering to the dustproof net, reduce the dust on the dustproof net, and ensure the permeability of the dustproof net.

[0011] Furthermore, the drive assembly includes a drive motor fixed to the upper end of the air inlet pipe, the controller is electrically connected to the drive motor, and a first pulley is fixed to the output end of the drive motor and the upper end of the first bidirectional lead screw. The two first pulleys are connected by a first transmission belt, and a first guide is provided inside the air inlet pipe.

[0012] By adopting the above technical solution, the drive component plays a driving role, driving the first bidirectional lead screw, so that the mounting rod drives the cleaning brush to move up and down reciprocally inside the air inlet pipe, thereby cleaning the dust screen.

[0013] Furthermore, the first guide member includes a first guide groove formed inside the air inlet pipe, a first guide rod fixed inside the first guide groove, a first guide block slidably sleeved on the first guide rod, and the first guide block being fixedly connected to the mounting rod.

[0014] By adopting the above technical solution, the first guide component plays a guiding and further supporting role, making the installation rod move up and down more smoothly inside the air inlet pipe.

[0015] Furthermore, the backflush structure includes a backflush box fixed to the side of the mounting housing. A filter screen is fixed to the upper end of the backflush box, and an installation pipe is fixed to the lower end of the backflush box. A corrugated hose is slidably arranged inside the installation pipe. The corrugated hose is fixedly connected to the backflush box and slides into the air inlet pipe. An output pipe is fixed to the end of the corrugated hose away from the backflush box, and a diverter pipe is fixed to the end of the output pipe away from the corrugated hose. Multiple air outlets are fixed on the diverter pipe. The backflush box, corrugated hose, output pipe, diverter pipe, and air outlets are connected. A blowing assembly is provided inside the backflush box, and a swing assembly is provided inside the air inlet pipe.

[0016] By adopting the above technical solution, the back-blowing structure can back-blow the dust screen, which, together with the cleaning brush, can improve the cleaning effect of the dust screen and blow the dust swept down by the cleaning brush out of the air inlet pipe, effectively preventing the dust swept down from re-adhering.

[0017] Furthermore, the blowing assembly includes a drive shaft rotatably connected inside the back-blowing box, an impeller is fixed on the drive shaft, and a first transmission component is provided between the output end of the drive motor and the drive shaft.

[0018] By adopting the above technical solution, the air blowing component can blow air inside the back-blowing box, thereby achieving back-blowing of the dustproof net.

[0019] Furthermore, the first transmission component includes a first bevel gear fixed to the output end of the drive motor, one end of the drive shaft passes through the backflush box, and a second bevel gear adapted to the first bevel gear is fixed thereon.

[0020] By adopting the above technical solution, the first transmission component plays a transmission role, enabling the drive shaft to rotate when the drive motor rotates.

[0021] Furthermore, the swing assembly includes a second mounting groove formed inside the air inlet pipe, a second bidirectional lead screw rotatably connected inside the second mounting groove, a second nut seat fitted with the second bidirectional lead screw, the second nut seat being fixedly connected to the diverter pipe, the upper end of the second bidirectional lead screw penetrating the air inlet pipe, a second guide member being provided inside the air inlet pipe, and a second transmission member being provided between the first bidirectional lead screw and the second bidirectional lead screw.

[0022] By adopting the above technical solution, the swing component can make the diversion pipe move up and down inside the air inlet pipe, thereby increasing the back-blowing range and improving the dust removal effect.

[0023] Furthermore, the second guide member includes a second guide groove formed inside the air inlet pipe, a second guide rod fixed inside the second guide groove, a second guide block slidably sleeved on the second guide rod, and the second guide block being fixedly connected to the diversion pipe.

[0024] By adopting the above technical solution, the second guide component plays a guiding and further supporting role, making the up-and-down movement of the diversion pipe more stable.

[0025] Furthermore, the second transmission component includes a second pulley fixed to the upper end of the first bidirectional lead screw and the upper end of the second bidirectional lead screw, and the two second pulleys are connected by a second transmission belt.

[0026] By adopting the above technical solution, the second transmission component plays a transmission role, enabling the second bidirectional lead screw to rotate.

[0027] In summary, this application includes at least one of the following beneficial effects;

[0028] 1. In this application, during the use of the metering box, when the wind speed sensor detects that the air intake volume is lower than the preset range value, it indicates that there is a lot of dust attached to the dust filter, which makes the air intake volume unable to meet the heat dissipation requirements. At this time, a signal will be sent to the controller. After processing the signal, the controller will send a stop command to the cooling fan to stop it from working, and send a start command to the drive motor to start it working. When the drive motor is working, under the action of the first pulley and the first transmission belt, the first bidirectional lead screw will rotate. Then, under the action of the first nut seat, the first guide block and the second guide rod, the mounting rod will drive the cleaning brush to move up and down repeatedly inside the air intake pipe. During the up and down movement of the cleaning brush, the dust filter is cleaned. The entire cleaning process lasts for 3 minutes. After 3 minutes, the drive motor stops working and the cooling fan starts working. By using a wind speed sensor to intelligently monitor the air intake volume of the air intake duct in real time, it can accurately detect whether the air intake volume meets the heat dissipation requirements. When the air intake volume cannot meet the heat dissipation requirements, the drive motor is activated to make the cleaning brush move back and forth to automatically and intelligently clean the dust attached to the dust screen, reduce the dust on the dust screen, ensure the permeability of the dust screen, and effectively avoid the impact of dust screen blockage on the heat dissipation of the entire metering box.

[0029] 2. This application achieves fully automated dust removal by intelligent monitoring of air intake and coordinated control of active dust cleaning. No manual intervention is required, and operators no longer need to periodically check for filter blockage or manually clean the filter. This effectively reduces maintenance steps and workload, and greatly improves the convenience and efficiency of equipment management.

[0030] 3. In this application, when the drive motor drives the first bidirectional lead screw to rotate, the first and second bevel gears cause the drive shaft to rotate and drive the impeller to rotate, thereby accelerating the airflow inside the back-blowing box. The accelerated air is then blown out through the air outlet and directed towards the dust filter, achieving back-blowing of the dust filter. By back-blowing the dust filter, the airflow flows out from the mesh of the dust filter, pushing out the dust that is blocking the mesh. Combined with the cleaning brush, this improves the cleaning effect of the dust filter and blows the dust swept down by the cleaning brush out of the air inlet pipe, effectively preventing the swept dust from falling back onto the dust filter.

[0031] 4. In this application, the dustproof net is subjected to repeated friction by the cleaning brush for a long time, which may cause wear of the mesh wires and reduce the filtration accuracy of the filter. However, the internal backflushing can assist in cleaning through airflow, share the cleaning pressure of the cleaning brush, reduce the "dry friction" between the cleaning brush and the dust, and reduce the direct scraping of the mesh wires. This "air-brush synergy" cleaning method can significantly reduce the mechanical wear of the dustproof net and extend its replacement cycle.

[0032] 5. In this application, during the process of the first bidirectional screw rotating and driving the cleaning brush to move up and down reciprocally, the second bidirectional screw rotates under the action of the second pulley and the second transmission belt, and under the action of the second nut, the second guide block, and the second guide rod, the diversion pipe moves up and down reciprocally inside the air inlet pipe. By the diversion pipe moving up and down reciprocally inside the air inlet pipe, the blower nozzle blows air onto different parts of the dust filter, thereby increasing the back-blowing range, improving the cleaning effect, and effectively reducing the problem of insufficient local blowing force on the dust filter due to a fixed back-blowing position, which fails to meet the dust removal effect.

[0033] 6. This application, through a reciprocating diversion pipe, can dynamically change the airflow impact point, disperse the force of high-pressure airflow to different areas of the dustproof net, and prevent the dustproof net from changing due to fixed impact, thus affecting its usage instructions. Attached Figure Description

[0034] Figure 1 This is a three-dimensional structural diagram of the electricity metering box in this application;

[0035] Figure 2 This is a schematic diagram of the internal structure of the electricity metering box in this application;

[0036] Figure 3 This is a schematic diagram of the first internal structure of the air inlet duct in this application;

[0037] Figure 4 This is a schematic diagram of the first internal structure of the air inlet duct in this application;

[0038] Figure 5 This is a partial three-dimensional structural diagram of the cleaning structure in this application;

[0039] Figure 6 This is a partial three-dimensional structural diagram of the backflush structure in this application;

[0040] Figure 7 This is a schematic diagram of the transmission of the cleaning structure and the backflushing structure in this application.

[0041] Explanation of reference numerals in the attached figures:

[0042] 1. Metering box body; 11. Protective door; 12. First chamber; 13. Second chamber; 14. Energy meter; 15. Miniature circuit breaker; 16. Molded case circuit breaker; 17. Cooling fan; 18. Controller; 2. Air inlet duct; 21. Dustproof net; 3. Wind speed sensor; 4. Mounting rod; 41. Cleaning brush; 42. First mounting slot; 43. First double-acting lead screw; 44. First nut seat; 45. Drive motor; 451. First pulley; 452. First transmission belt; 453. First guide groove; 454. First guide... 455. Rod; 46. First guide block; 57. Mounting housing; 58. Backflush box; 59. Filter screen; 50. Mounting pipe; 51. Corrugated hose; 52. Output pipe; 53. Diverter pipe; 54. Air outlet; 55. Drive shaft; 56. Impeller; 57. First bevel gear; 58. Second bevel gear; 59. Second mounting groove; 50. Second double-acting lead screw; 51. Second nut seat; 52. Second guide groove; 53. Second guide rod; 54. Second guide block; 55. Second pulley; 56. Second transmission belt. Detailed Implementation

[0043] The following is in conjunction with the appendix Figures 1-7 This application will be described in further detail.

[0044] This application discloses an intelligent dust-removing power metering box.

[0045] Reference Figure 1 and Figure 2 A smart dust-removing power metering box includes a metering box body 1. Two protective doors 11 are installed on the side of the metering box body 1. The metering box body 1 has a first chamber 12 and a second chamber 13. The first chamber 12 is equipped with an energy meter 14 and a miniature circuit breaker 15. The second chamber 13 is equipped with a plastic-cased circuit breaker 16. A cooling fan 17 is fixed to the side of the metering box body 1. A controller 18 is fixed to the side of the metering box body 1 away from the cooling fan 17. An air inlet pipe 2 is fixed to the end of the metering box body 1 away from the cooling fan 17. A dustproof net 21 is fixed inside the air inlet pipe 2. A wind speed sensor 3 for monitoring wind speed is fixed inside the air inlet pipe 2. The controller 18 is electrically connected to the cooling fan 17 and the wind speed sensor 3. A cleaning structure for cleaning the dustproof net 21 is provided inside the air inlet pipe 2. A back-blowing structure for back-blowing dust is provided at the upper end of the air inlet pipe 2.

[0046] When the electricity metering box is put into use, the electrical components such as the electricity meter 14, miniature circuit breaker 15, and molded case circuit breaker 16 must first be installed in its first chamber 12 and second chamber 13. Then, the wiring is connected and tested. Once all parameters are verified to be correct, it can be officially put into use. During operation, the cooling fan 17 is activated, allowing outside air to be introduced into the metering box body 1 through the air inlet duct 2. This air exchanges heat with the electrical components inside the metering box body 1, and finally, the cooling fan 17 exhausts the hot air outside the box, forming an efficient cooling cycle that ensures the metering box is always in a suitable cooling environment. With prolonged use of the metering box, dust will accumulate on the dustproof mesh 21, especially in dusty outdoor environments. The accumulation of dust on the dustproof mesh 21 affects the air intake. When the wind speed sensor 3 detects that the air intake is lower than the preset range, it indicates that the air intake cannot adequately meet the heat dissipation requirements. At this time, a signal is sent to the controller 18. After receiving the signal, the controller 18 controls the cleaning structure and the back-blowing structure to clean the dust on the dustproof mesh 21, ensuring the permeability of the dustproof mesh 21 and reducing the impact of dust blockage on the internal heat dissipation of the metering box body 1.

[0047] Reference Figures 3-5 The cleaning structure includes a mounting rod 4 installed inside the air inlet pipe 2. A cleaning brush 41 is fixed to the side of the mounting rod 4. The cleaning brush 41 is in contact with the dustproof net 21. A first mounting groove 42 is opened inside the air inlet pipe 2. A first bidirectional screw 43 is rotatably connected inside the first mounting groove 42. The upper end of the first bidirectional screw 43 passes through the air inlet pipe 2. A first nut seat 44 that matches the first bidirectional screw 43 is sleeved on the first bidirectional screw 43. The first nut seat 44 is fixedly connected to the mounting rod 4. A mounting housing 46 is fixed to the upper end of the air inlet pipe 2. A drive assembly is provided inside the mounting housing 46.

[0048] The drive assembly includes a drive motor 45 fixed to the upper end of the air inlet pipe 2, a controller 18 electrically connected to the drive motor 45, a first pulley 451 fixed to the output end of the drive motor 45 and the upper end of the first bidirectional lead screw 43, and the two first pulleys 451 are connected by a first transmission belt 452. A first guide is provided inside the air inlet pipe 2.

[0049] In addition, the first guide component includes a first guide groove 453 opened inside the air inlet pipe 2, a first guide rod 454 fixed inside the first guide groove 453, a first guide block 455 slidably sleeved on the first guide rod 454, and the first guide block 455 is fixedly connected to the mounting rod 4.

[0050] When the wind speed sensor 3 detects that the wind speed at the air inlet duct 2 is lower than the preset range, it sends a signal to the controller 18. After processing the signal, the controller 18 sends a stop command to the cooling fan 17 to stop it from working, and sends a start command to the drive motor 45 to start it working. When the drive motor 45 is working, the first pulley 451 on its output end rotates accordingly. Then, under the action of the first transmission belt 452, the first pulley 451 at the upper end of the first bidirectional lead screw 43 rotates, thereby driving the first bidirectional lead screw 43 to rotate. When the first bidirectional lead screw 43 rotates, the first nut seat 44 is subjected to force. The force on the first nut seat 44 causes the mounting rod 4 to be subjected to force. At the same time, the mounting rod 4 is guided by the first guide block 455 and the second guide rod 584, thereby causing the mounting rod 4 to drive the cleaning brush 41 to move back and forth up and down inside the air inlet duct 2. During the back and forth up and down movement of the cleaning brush 41, the dust screen 21 is cleaned. The entire cleaning process lasts for 3 minutes. After 3 minutes, the drive motor 45 stops working, and the cooling fan 17 starts working. The airflow of the air inlet duct 2 is monitored in real time by the wind speed sensor 3, which can accurately detect whether the airflow meets the heat dissipation requirements. When the airflow is insufficient, the drive motor 45 is activated, causing the cleaning brush to move back and forth to automatically and intelligently clean the dust adhering to the dust filter 21. This reduces the dust on the dust filter 21, ensures its permeability, and effectively avoids the impact of dust filter 21 blockage on the heat dissipation of the entire metering box. Furthermore, through the coordinated control of intelligent airflow monitoring and active dust cleaning, the dust filter 21 cleaning is fully automated, requiring no manual intervention. Operators no longer need to periodically check for filter blockage or manually clean the filter, effectively reducing maintenance steps and workload, and greatly improving the convenience and efficiency of equipment management.

[0051] Reference Figure 4 , Figure 6 , Figure 7 The backflush structure includes a backflush box 5 fixed to the side of the mounting housing 46. A filter screen 51 is fixed to the upper end of the backflush box 5, and an installation pipe 52 is fixed to the lower end of the backflush box 5. A corrugated hose 53 is slidably installed inside the installation pipe 52. The corrugated hose 53 is fixedly connected to the backflush box 5 and slides into the air inlet pipe 2. An output pipe 54 is fixed to the end of the corrugated hose 53 away from the backflush box 5. The diameter of the output pipe 54 is smaller than the diameter of the corrugated hose 53. Therefore, when the air blown out of the backflush box 5 enters the output pipe 54, the air velocity inside the output pipe 54 will be greater than the air velocity inside the corrugated pipe. This can increase the air velocity of the air outlet 56 and improve the backflush effect on dust. A diverter pipe 55 is fixed to the end of the output pipe 54 away from the corrugated hose 53. Multiple air outlets 56 are fixed on the diverter pipe 55. The backflush box 5, corrugated hose 53, output pipe 54, diverter pipe 55, and air outlets 56 are connected. A blowing assembly is installed inside the backflush box 5, and an oscillating assembly is installed inside the air inlet pipe 2.

[0052] The blowing assembly includes a drive shaft 57 rotatably connected inside the back-blowing box 5, an impeller 571 fixed on the drive shaft 57, and a first transmission component between the output end of the drive motor 45 and the drive shaft 57.

[0053] In addition, the first transmission component includes a first bevel gear 572 fixed to the output end of the drive motor 45, one end of the drive shaft 57 passes through the backflush box 5, and a second bevel gear 573 adapted to the first bevel gear 572 is fixed thereon. The diameter of the first bevel gear 572 is larger than the diameter of the second bevel gear 573. Therefore, the rotational speed of the drive shaft 57 is greater than the rotational speed of the output end of the drive motor 45, thereby driving the impeller 571 to rotate quickly and increasing the air outlet speed inside the backflush box 5.

[0054] When the drive motor 45 drives the first bidirectional lead screw 43 to rotate, the first bevel gear 572 will rotate with the output end of the drive motor 45, thereby driving the second bevel gear 573 to rotate. When the second bevel gear 573 rotates, the drive shaft 57 drives the impeller 571 to rotate, thereby accelerating the airflow speed inside the back-blowing box 5. The accelerated air enters the corrugated hose 53, then enters the output pipe 54, then enters the diverter pipe 55, and finally is blown out through the air outlet 56, thus blowing towards the dust filter 21 and achieving back-blowing of the dust filter 21. By back-blowing the dust filter 21, the airflow flows out from the mesh of the dust filter 21, pushing out the dust that is blocked in the mesh of the dust filter 21. Combined with the cleaning brush, this can improve the cleaning effect of the dust filter 21 and blow the dust swept down by the cleaning brush out of the air inlet pipe, effectively preventing the swept dust from falling back onto the dust filter 21. Furthermore, the dust screen 21 is subjected to repeated friction from the cleaning brush over a long period of time, which may cause wear on the mesh wires, resulting in a decrease in the filtration accuracy of the filter screen. However, the internal backflushing can assist in cleaning through airflow, share the cleaning pressure of the cleaning brush, reduce the "dry friction" between the cleaning brush and the dust, and reduce the direct scraping of the mesh wires. This "air-brush synergy" cleaning method can significantly reduce the mechanical wear of the dust screen 21 and extend its replacement cycle.

[0055] Reference Figure 6 and Figure 7 The swing assembly includes a second mounting groove 58 opened inside the air inlet pipe 2. A second bidirectional lead screw 581 is rotatably connected inside the second mounting groove 58. A second nut seat 582 adapted to the second bidirectional lead screw 581 is sleeved on it. The second nut seat 582 is fixedly connected to the diverter pipe 55. The upper end of the second bidirectional lead screw 581 passes through the air inlet pipe 2. A second guide is provided inside the air inlet pipe 2. A second transmission component is provided between the first bidirectional lead screw 43 and the second bidirectional lead screw 581.

[0056] The second guide component includes a second guide groove 583 opened inside the air inlet pipe 2, a second guide rod 584 fixed inside the second guide groove 583, a second guide block 585 slidably sleeved on the second guide rod 584, and the second guide block 585 is fixedly connected to the diversion pipe 55.

[0057] In addition, the second transmission component includes a second pulley 586 fixed to the upper end of the first bidirectional lead screw 43 and the upper end of the second bidirectional lead screw 581, and the two second pulleys 586 are connected by a second transmission belt 587.

[0058] During the reciprocating motion of the cleaning brush 41 driven by the rotation of the first bidirectional lead screw 43, the second pulley 586 at the upper end of the first bidirectional lead screw 43 rotates accordingly. Then, under the action of the second transmission belt 587, the second pulley 586 at the upper end of the second bidirectional lead screw 581 rotates, thereby driving the second bidirectional lead screw 581 to rotate. When the second bidirectional lead screw 581 rotates, the second nut seat 582 is subjected to force, which in turn forces the diversion pipe 55. When the diversion pipe is subjected to force, the second guide block 585 is guided by the second guide rod 584, causing the diversion pipe 55 to reciprocate up and down inside the air inlet pipe 2. By reciprocating up and down within the air inlet pipe 2, the air nozzle blows air onto different parts of the dustproof net 21, thereby increasing the back-blowing range, improving the cleaning effect, and effectively reducing the problem of insufficient local airflow force on the dustproof net 21 due to fixed back-blowing positions, which fails to meet the dust removal effect. Meanwhile, the reciprocating diversion pipe 55 can dynamically change the airflow impact point, dispersing the force of the high-pressure airflow to different areas of the dustproof net 21, preventing changes in the dustproof net 21 caused by fixed impact, which would affect its usage instructions.

[0059] Working principle: When the electricity metering box is put into use, the electrical components such as the electricity meter 14, miniature circuit breaker 15, and molded case circuit breaker 16 must be installed in its first chamber 12 and second chamber 13. Then, the wiring is connected and tested. Once all parameters are verified to be correct, it can be officially put into use. During operation, the cooling fan 17 is activated, allowing external air to be introduced into the metering box body 1 through the air inlet duct 2. This air exchanges heat with the electrical components inside the metering box body 1, and finally, the cooling fan 17 exhausts the hot air out of the box, forming an efficient cooling cycle that ensures the metering box is always in a suitable cooling environment.

[0060] With prolonged use of the metering box, dust will accumulate on the dustproof screen 21, especially in dusty outdoor environments. This accumulation affects airflow. When the wind speed sensor 3 detects that the airflow is below a preset range, it indicates that the airflow is insufficient to meet heat dissipation requirements. A signal is then sent to the controller 18. The controller 18 processes the signal and sends a stop command to the cooling fan 17 to stop it from operating. A start command is also sent to the drive motor 45 to begin operation. When the drive motor 45 operates, the first pulley 451 at its output end rotates accordingly, followed by the first transmission belt 452. Under the action of the first double-acting screw 43, the first pulley 451 at the upper end of the first double-acting screw 43 rotates, thereby driving the first double-acting screw 43 to rotate. When the first double-acting screw 43 rotates, the first nut seat 44 is subjected to force, and the first nut seat 44 is subjected to force, which in turn causes the mounting rod 4 to be subjected to force. At the same time, the mounting rod 4 is guided by the first guide block 455 and the second guide rod 584, thereby causing the mounting rod 4 to drive the cleaning brush 41 to move back and forth up and down inside the air inlet pipe 2. During the back and forth up and down movement of the cleaning brush 41, the dustproof net 21 is cleaned. The entire cleaning process lasts for 3 minutes. After 3 minutes, the drive motor 45 stops working, and the cooling fan 17 starts working. The airflow of the air inlet duct 2 is monitored in real time by the wind speed sensor 3, which can accurately detect whether the airflow meets the heat dissipation requirements. When the airflow is insufficient, the drive motor 45 is activated, causing the cleaning brush to move back and forth to automatically and intelligently clean the dust adhering to the dust filter 21, reducing the dust on the dust filter 21 and ensuring its permeability. This effectively avoids the impact of dust filter 21 blockage on the heat dissipation of the entire metering box. Furthermore, through the coordinated control of intelligent airflow monitoring and active dust cleaning, the dust filter 21 cleaning is fully automated, requiring no manual intervention. Operators no longer need to periodically check for filter blockage or manually clean the filter, effectively reducing maintenance steps and workload, and greatly improving the convenience and efficiency of equipment management.

[0061] When the drive motor 45 drives the first bidirectional lead screw 43 to rotate, the first bevel gear 572 will rotate with the output end of the drive motor 45, thereby driving the second bevel gear 573 to rotate. When the second bevel gear 573 rotates, the drive shaft 57 drives the impeller 571 to rotate, thereby accelerating the airflow speed inside the back-blowing box 5. The accelerated air enters the corrugated hose 53, then enters the output pipe 54, then enters the diverter pipe 55, and finally is blown out through the air outlet 56, thus blowing towards the dust filter 21 and achieving back-blowing of the dust filter 21. By back-blowing the dust filter 21, the airflow flows out from the mesh of the dust filter 21, pushing out the dust that is blocked in the mesh of the dust filter 21. Combined with the cleaning brush, this can improve the cleaning effect of the dust filter 21 and blow the dust swept down by the cleaning brush out of the air inlet pipe, effectively preventing the swept dust from falling back onto the dust filter 21. Furthermore, the dust screen 21 may experience wear and tear due to repeated friction from the cleaning brush over a long period of time, which would reduce the filtration accuracy of the screen. However, the internal backflushing can assist in cleaning through airflow, share the cleaning pressure of the cleaning brush, reduce the "dry friction" between the cleaning brush and the dust, and reduce the direct scraping of the mesh. This "air-brush synergy" cleaning method can significantly reduce the mechanical wear of the dust screen 21 and extend its replacement cycle.

[0062] During the reciprocating motion of the cleaning brush 41 driven by the rotation of the first bidirectional lead screw 43, the second pulley 586 at the upper end of the first bidirectional lead screw 43 rotates accordingly. Then, under the action of the second transmission belt 587, the second pulley 586 at the upper end of the second bidirectional lead screw 581 rotates, thereby driving the second bidirectional lead screw 581 to rotate. When the second bidirectional lead screw 581 rotates, the second nut seat 582 is subjected to force, which in turn forces the diversion pipe 55. When the diversion pipe is subjected to force, the second guide block 585 is guided by the second guide rod 584, causing the diversion pipe 55 to reciprocate up and down inside the air inlet pipe 2. By reciprocating up and down within the air inlet pipe 2, the air nozzle blows air onto different parts of the dustproof net 21, thereby increasing the back-blowing range, improving the cleaning effect, and effectively reducing the problem of insufficient local airflow force on the dustproof net 21 due to fixed back-blowing positions, which fails to meet the dust removal effect. Meanwhile, the reciprocating diversion pipe 55 can dynamically change the airflow impact point, dispersing the force of the high-pressure airflow to different areas of the dustproof net 21, preventing changes in the dustproof net 21 caused by fixed impact, which would affect its usage instructions.

Claims

1. An intelligent dust-removing power metering box, comprising a metering box body, characterized in that: The metering box body has two protective doors installed on its side. Inside the metering box body are a first chamber and a second chamber. The first chamber houses an electricity meter and a miniature circuit breaker, while the second chamber houses a plastic-cased circuit breaker. A cooling fan is fixed to the side of the metering box body. A controller is fixed to the side of the metering box body away from the cooling fan. An air inlet duct is fixed to the end of the metering box body away from the cooling fan. A dust filter is fixed inside the air inlet duct, and a wind speed sensor for monitoring wind speed is also fixed inside. The controller is electrically connected to the cooling fan and the wind speed sensor. A cleaning structure for cleaning the dust filter is provided inside the air inlet duct. The upper end of the air inlet duct is equipped with a back-blowing structure for back-blowing dust. The cleaning structure includes a mounting rod installed inside the air inlet duct, with a cleaning brush fixed to its side. The cleaning brush is in contact with a dustproof mesh. A first mounting groove is formed inside the air inlet duct, and a first bidirectional lead screw is rotatably connected within this groove. The upper end of the first bidirectional lead screw penetrates the air inlet duct, and a first nut seat fitted onto the lead screw is fitted therewith. The first nut seat is fixedly connected to the mounting rod. A mounting housing is fixed to the upper end of the air inlet duct, and a drive assembly is installed inside the housing. The drive assembly includes a drive motor fixed to the upper end of the air inlet duct, and a controller is electrically connected to the drive motor. The output end of the machine and the upper end of the first bidirectional lead screw are both fixed with first pulleys. The two first pulleys are connected by a first transmission belt. A first guide is provided inside the air inlet pipe. The back-blowing structure includes a back-blowing box fixed to the side of the mounting housing. A filter screen is fixed to the upper end of the back-blowing box, and an installation pipe is fixed to the lower end of the back-blowing box. A corrugated hose is slidably arranged inside the installation pipe. The corrugated hose is fixedly connected to the back-blowing box and slides into the air inlet pipe. An output pipe is fixed to the end of the corrugated hose away from the back-blowing box, and a diverter pipe is fixed to the end of the output pipe away from the corrugated hose. Multiple air outlets are fixed on the diverter pipe. The back-blowing box, corrugated hose, output pipe, diverter pipe, and air outlet are all connected together. The air nozzles are connected. A blowing assembly is installed inside the back-blowing box, and a swing assembly is installed inside the air inlet pipe. The blowing assembly includes a drive shaft rotatably connected inside the back-blowing box. An impeller is fixed on the drive shaft. A first transmission component is provided between the output end of the drive motor and the drive shaft. The swing assembly includes a second mounting groove opened inside the air inlet pipe. A second bidirectional lead screw is rotatably connected inside the second mounting groove. A second nut seat adapted to the second bidirectional lead screw is sleeved on the second bidirectional lead screw. The second nut seat is fixedly connected to the diverter pipe. The upper end of the second bidirectional lead screw passes through the air inlet pipe. A second guide component is provided inside the air inlet pipe. A second transmission component is provided between the first bidirectional lead screw and the second bidirectional lead screw.

2. The intelligent dust-removing power metering box according to claim 1, characterized in that: The first guide member includes a first guide groove formed inside the air inlet pipe, a first guide rod fixed inside the first guide groove, a first guide block slidably sleeved on the first guide rod, and the first guide block being fixedly connected to the mounting rod.

3. The intelligent dust-removing power metering box according to claim 1, characterized in that: The first transmission component includes a first bevel gear fixed to the output end of the drive motor, one end of the drive shaft passes through the backflush box, and a second bevel gear adapted to the first bevel gear is fixed thereon.

4. The intelligent dust-removing power metering box according to claim 1, characterized in that: The second guide component includes a second guide groove formed inside the air inlet pipe, a second guide rod fixed inside the second guide groove, a second guide block slidably sleeved on the second guide rod, and the second guide block being fixedly connected to the diversion pipe.

5. The intelligent dust-removing power metering box according to claim 1, characterized in that: The second transmission component includes a second pulley fixed to the upper end of the first bidirectional lead screw and the upper end of the second bidirectional lead screw, and the two second pulleys are connected by a second transmission belt.

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