A metering box with intelligent identification and classification of abnormal electricity consumption behavior

Abstract

This invention belongs to the field of power equipment technology, specifically relating to a metering box with intelligent identification and classification of abnormal electricity consumption behavior. The metering box includes a housing with ventilation grilles at both ends. A temperature sensor is fixed to the upper part of the housing's interior, and a temperature and humidity sensor is fixed to the outer side of the housing. The temperature sensor is configured to monitor the internal temperature of the housing, and the temperature and humidity sensor is configured to monitor the ambient temperature and humidity outside the housing. A detachable waterproof louver is fixed to the outer side of the ventilation grilles. This invention, through the cooperation of the temperature and humidity sensors, monitors the internal and external temperatures and ambient humidity of the housing in real time and sets temperature control thresholds according to humidity levels. An axial flow fan drives gas flow to balance the temperature difference between the inside and outside of the housing, thus preventing condensation from forming at its source under complex operating conditions such as large day-night temperature differences and high humidity.

Description

Technical Field

[0001] This invention belongs to the field of power equipment technology, specifically relating to a metering box with intelligent identification and classification of abnormal electricity consumption behavior. Background Technology

[0002] Electricity metering boxes are core power equipment at the end of distribution networks, enabling electricity metering, power consumption monitoring, and line protection. They are widely used in various electricity consumption scenarios, including residential communities, industrial and commercial plants, and rural power grids. Primarily used to enclose key electrical components such as electricity meters, transformers, and terminals, they bear the fundamental functions of accurately measuring electricity consumption and ensuring the safe and stable operation of power lines. Currently, conventional electricity metering boxes mostly adopt a closed enclosure structure with basic ventilation and heat dissipation design. They rely on the principle of natural convection to achieve air exchange between the inside and outside of the enclosure, thereby controlling the operating temperature of internal components. Simultaneously, they meet basic protection and sealing requirements. This is currently the most widespread and prevalent basic equipment form in the power grid metering system, providing fundamental hardware support for daily electricity metering and operation and maintenance management.

[0003] Existing traditional metering boxes have many unavoidable technical defects in actual outdoor and semi-outdoor installations and use, and cannot meet the long-term stable operation requirements under complex working conditions. On the one hand, when the temperature difference between day and night is large in the installation environment of the metering box, the alternation of hot and cold air inside and outside the box can easily lead to condensation. Condensation adheres to the surface of internal electrical components, terminals and wiring connections, which will significantly reduce the insulation performance of components, causing safety hazards such as short circuits, leakage, and poor contact, directly shortening the service life of electrical components, and even inducing electrical safety accidents. On the other hand, existing metering boxes generally have a core contradiction of not being able to balance dust and insect protection with heat dissipation efficiency. Relying solely on natural convection for cooling allows external dust, insects, and debris to easily enter the box, accumulating and affecting component heat dissipation and wiring continuity. Adding protective nets, sealing baffles and other dust and insect protection components will seriously obstruct the air convection channel, significantly reducing the heat dissipation efficiency of the box, leading to excessively high operating temperatures of internal components, and exacerbating equipment aging and failure risks.

[0004] In summary, existing conventional power metering boxes only have basic encapsulation and metering functions. They cannot solve the problem of condensation protection under temperature difference environments, nor can they balance the dual requirements of dust and insect protection and efficient heat dissipation. As a result, the stability of equipment operation and service life are limited. Summary of the Invention

[0005] The purpose of this invention is to provide a metering box with intelligent identification and classification of abnormal power consumption behavior. Through the cooperation of temperature and humidity sensors, the internal and external temperatures and ambient humidity of the casing are monitored in real time, and temperature control thresholds are set according to the ambient humidity levels. An axial fan drives gas flow to balance the temperature difference between the inside and outside of the casing, so that condensation is avoided from the source under complex working conditions such as large temperature differences between day and night and high humidity. This improves the insulation safety of electrical equipment, reduces the risk of failure, and extends the service life.

[0006] The specific technical solution adopted by this invention is as follows: A metering box with intelligent identification and classification of abnormal electricity consumption behavior includes a housing. Ventilation grilles are respectively provided at both ends of the housing. A temperature sensor is fixed to the upper part of the housing interior, and a temperature and humidity sensor is fixed to the outer side of the housing. The temperature sensor is configured to monitor the internal temperature of the housing, and the temperature and humidity sensor is configured to monitor the ambient temperature and humidity outside the housing. A detachable waterproof louver is fixed to the outer side of the ventilation grilles. A filter screen is fixed inside the louver, and the filter screen is compatible with the ventilation grilles. The box also includes: An anti-condensation module, comprising an axial fan mounted inside a housing and adapted to a filter screen, the anti-condensation module being configured to prevent condensation from occurring inside the housing; A drive module is assembled inside the housing and is connected to an anti-condensation module. The drive module is configured to drive the anti-condensation module to reciprocate in the vertical direction. The temperature sensor and the temperature and humidity sensor monitor the temperature inside and outside the housing respectively and calculate the temperature difference. When the temperature difference reaches the control threshold, the axial fan runs to drive the gas flow inside and outside the housing and balance the temperature difference between the inside and outside of the housing.

[0007] In a preferred embodiment, when the ambient humidity RH outside the casing is ≥90%, the control threshold is 1-2℃; when the ambient humidity 90% > RH ≥ 70%, the control threshold is 2-3℃; when the ambient humidity 80% > RH ≥ 50%, the control threshold is 4-5℃; and when the ambient humidity RH < 50%, the control threshold is 8-10℃.

[0008] In a preferred embodiment, the filter screen is made of metal wire and has a mesh structure with a mesh size of 0.3mm to 1.2mm and an opening rate of ≥65%; under rated air volume, the air volume attenuation through the filter screen is ≤8%, and the initial resistance is ≤30Pa.

[0009] In a preferred embodiment, the anti-condensation module further includes a fan base, which is movably mounted inside the housing. The fan base is connected to the drive module and is adapted to the filter screen. The axial fan is fixed inside the fan base at the end away from the filter screen. An arc-shaped air cavity is formed inside the fan base at the end near the filter screen. Dust-cleaning air holes are formed at the upper and lower ends of the arc-shaped air cavity, and the dust-cleaning air holes are adapted to the filter screen. A dust-removing groove is formed at the end of the fan base near the filter screen and between two dust-cleaning air holes. Multiple bristles are fixed inside the dust-removing groove. The fan base can move vertically inside the housing. In the initial state, the ends of the bristles are in contact with the filter screen.

[0010] In a preferred embodiment, the diameter of the bristles is less than or equal to the pore size of the internal mesh of the filter screen.

[0011] In a preferred embodiment, multiple rectifiers are provided at both the upper and lower ends of the arc-shaped air cavity, and a rectifier channel is formed between two adjacent rectifiers located on the same horizontal plane.

[0012] In a preferred embodiment, the dust removal groove has multiple air inlets inside, and the multiple bristles and multiple air inlets are staggered. The center of the arc-shaped air cavity is rotatably connected to multiple air guide plates, and the air inlets and air guide plates are adapted to each other.

[0013] In a preferred embodiment, the rotation angle range of the air guide plate is 0° to 90°, wherein when the axial fan rotates in the forward direction, the air guide plate is in a guiding state, and when the axial fan rotates in the reverse direction, the air guide plate is in a blocking state.

[0014] In a preferred embodiment, airflow sensors are fixed at both the upper and lower ends of the fan base, and the monitoring ends of the airflow sensors extend into the interior of the rectifier channel.

[0015] In a preferred embodiment, the upper end of the air guide plate is provided with an anti-rotation plane, which is configured to limit the air guide plate after it is reset, thereby preventing the air guide plate from continuing to rotate after it is reset.

[0016] In a preferred embodiment, the drive module includes a drive motor, a screw, and a guide rod. The drive motor is fixed inside the housing and located at the upper end of the ventilation grid. The screw is fixed to the output end of the drive motor and is rotatably connected to the housing. The guide rod is fixed inside the housing and is threadedly connected to the fan base. The guide rod is slidably connected to the fan base, and the screw and guide rod are located on opposite sides of the fan base.

[0017] The technical effects achieved by this invention are as follows: This invention uses a combination of temperature and humidity sensors to monitor the internal and external temperatures and ambient humidity of the housing in real time and sets temperature control thresholds according to the ambient humidity levels. An axial fan drives gas flow to balance the temperature difference between the inside and outside of the housing, so that the housing can avoid condensation at the source under complex working conditions such as large temperature difference between day and night and high humidity, thereby improving the insulation safety of electrical equipment, reducing the risk of failure and extending the service life. This invention uses a counter-rotating axial fan to drive the gas inside the housing to flow to the outside, and forms a high-speed airflow impact through the combination of an arc-shaped air cavity and dust removal air holes. The filter screen is physically cleaned by brush bristles. This invention achieves a multi-mode cleaning process that combines high-speed airflow impact, physical pin unblocking, and air duct rectification and pressurization. This ensures that dust, insects, and debris blocking the filter screen can be completely removed, avoiding local residue and repeated clogging. This results in long-term maintenance of the filter screen's ventilation efficiency and continuous and stable heat dissipation and anti-condensation functions. This invention uses an airflow sensor to monitor the gas flow rate inside the arc-shaped air cavity in real time, determine the filter blockage status, and initiate a self-cleaning program. This allows the device to break free from the traditional operation and maintenance mode of manual inspection and manual unblocking, and achieve long-term unattended outdoor operation, intelligent self-maintenance, and stable and reliable power monitoring. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure of the louvered waterproof board and filter screen of the present invention; Figure 3 This is a schematic diagram of the structure of the anti-condensation module and the drive module of the present invention; Figure 4 This is a rear view of the anti-condensation module and the drive module of the present invention; Figure 5 This is a cross-sectional view of the anti-condensation module of the present invention; Figure 6 This is an exploded view of the anti-condensation module of the present invention; Figure 7 This is a schematic diagram of the internal structure of the fan base of the present invention; Figure 8 This is a schematic diagram of the air guide plate of the present invention.

[0019] The attached diagram lists the components represented by each number as follows: 10. Housing; 11. Temperature sensor; 12. Temperature and humidity sensor; 13. Louvered waterproof panel; 14. Filter screen; 20. Anti-condensation module; 21. Axial fan; 22. Fan base; 23. Arc-shaped air cavity; 24. Dust cleaning air hole; 25. Brush bristles; 26. Rectifier plate; 27. Air inlet; 28. Air guide plate; 2801. Anti-rotation limiting surface; 29. ​​Air volume sensor; 30. Drive module; 31. Drive motor; 32. Screw; 33. Guide rod. Detailed Implementation

[0020] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0021] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0022] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in a preferred embodiment" appearing in different places throughout this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that mutually excludes other embodiments.

[0023] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include the three-dimensional spatial dimensions of length, width, and depth.

[0024] Please see the appendix Figures 1 to 5 As shown, this is the first embodiment of the present invention. This embodiment provides a metering box with intelligent identification and classification of abnormal electricity consumption behavior, including a housing 10. An intelligent control module is integrated inside the housing 10. Ventilation grilles are respectively provided at both ends of the housing 10. A temperature sensor 11 is fixed to the upper end inside the housing 10, and a temperature and humidity sensor 12 is fixed to the outer side of the housing 10. The temperature sensor 11 is configured to monitor the temperature inside the housing 10, and the temperature and humidity sensor 12 is configured to monitor the ambient temperature and humidity outside the housing 10. A louvered waterproof plate 13 is detachably fixed to the outer side of the ventilation grille. A filter screen 14 is fixed inside the louvered waterproof plate 13, and the filter screen 14 is compatible with the ventilation grille. The device also includes: The anti-condensation module 20 includes an axial fan 21, which is mounted inside the housing 10 and is adapted to the filter screen 14. The anti-condensation module 20 is configured to prevent condensation from occurring inside the housing 10. The drive module 30 is assembled inside the housing 10 and is connected to the anti-condensation module 20. The drive module 30 is configured to drive the anti-condensation module 20 to reciprocate in the vertical direction. The temperature sensor 11 and the temperature and humidity sensor 12 monitor the temperature inside and outside the housing 10 respectively and calculate the temperature difference. When the temperature difference reaches the control threshold, the axial fan 21 runs to drive the gas flow inside and outside the housing 10 and balance the temperature difference between the inside and outside of the housing 10.

[0025] Furthermore, when the ambient humidity RH outside the housing 10 is ≥90%, the control threshold for the inside and outside of the housing 10 is 1-2℃; when the ambient humidity RH outside the housing 10 is 90% > 70%, the control threshold for the inside and outside of the housing 10 is 2-3℃; when the ambient humidity RH outside the housing 10 is 80% > 50%, the control threshold for the inside and outside of the housing 10 is 4-5℃; when the ambient humidity RH outside the housing 10 is RH < 50%, the control threshold for the inside and outside of the housing 10 is 8-10℃; preferably, in this embodiment, when the ambient humidity RH outside the housing 10 is ≥90%, the control threshold is 1.5℃; when the ambient humidity RH outside the housing 10 is 90% > 70%, the control threshold is 3℃; when the ambient humidity RH outside the housing 10 is 80% > 50%, the control threshold is 5℃; when the ambient humidity RH outside the housing 10 is < 50%, the control threshold is the housing 10℃.

[0026] Furthermore, the intelligent control module can control the electrical components inside the housing 10, and can identify, analyze, classify and warn of abnormal power consumption. Here, the intelligent control module is an existing mature application, and its specific structure and working principle can be referred to the existing technology. It will not be elaborated further here.

[0027] In this embodiment, when the metering box is used in an environment with large day-night temperature differences, the temperature sensor 11 monitors the temperature inside the housing 10, and the temperature and humidity sensor 12 monitors the ambient temperature and humidity outside the housing 10. When the ambient temperature changes rapidly, a corresponding control threshold is selected based on the ambient humidity monitored by the temperature and humidity sensor 12. Specifically, when the ambient humidity outside the housing 10 is RH≥90% and the temperature difference between the inside and outside of the housing 10 reaches 1.5 degrees Celsius, the axial fan 21 operates. The axial fan 21 drives the air flow inside and outside the housing 10 to balance the temperature difference and prevent condensation inside the housing 10. When the ambient humidity outside the housing 10 is 90%>RH≥70% and the temperature difference between the inside and outside of the housing 10 reaches 3°C, the axial fan 21 operates to balance the temperature difference between the inside and outside of the housing 10. The temperature difference between the inside and outside of the housing 10 is controlled by the following: when the ambient humidity outside the housing 10 is 80% > RH ≥ 50% and the control threshold is 5℃, the axial fan 21 operates to balance the temperature difference between the inside and outside of the housing 10; when the ambient humidity outside the housing 10 is RH < 50% and the control threshold is 10℃, the axial fan 21 operates to balance the temperature difference between the inside and outside of the housing 10. Through the above scheme, the device can intelligently adjust the control threshold according to different ambient humidity, effectively preventing condensation while avoiding the axial fan 21 from running for a long time, reducing energy consumption and extending the service life of the equipment. At the same time, the louvered waterproof plate 13 can prevent rain and snow from entering the inside of the housing 10, and the filter screen 14 can prevent external dust, insects, fluff and other debris from entering the inside of the housing 10 through the ventilation grille, thereby ensuring the cleanliness and normal operation of the electrical components inside the housing 10.

[0028] Secondly, please refer to it again. Figure 2 The filter screen 14 is made of metal wire and has a mesh structure with a mesh size of 0.3mm to 1.2mm and an opening rate of ≥65%. Under the rated air volume, the air volume attenuation after passing through the filter screen 14 is ≤8%, and the initial resistance is ≤30Pa.

[0029] Furthermore, the metal wire is made of any one of the following materials: 304 stainless steel, 3166 stainless steel, or other metal materials with corrosion resistance. In this embodiment, the metal wire is preferably made of 304 stainless steel, and the mesh size of the mesh structure is 1 mm.

[0030] In this embodiment, the filter screen 14 adopts a mesh structure woven from metal wires, and its mesh aperture is controlled within the range of 0.3mm to 1.2mm. It can effectively intercept most dust particles in the external environment (a 1mm mesh can block most of the larger debris such as mosquitoes, willow catkins, and fibers that are visible to the naked eye). At the same time, the high porosity makes the airflow less obstructed. Under the rated airflow conditions, the airflow attenuation after passing through the filter screen 14 can be controlled to ≤8%, ensuring that the ventilation and heat dissipation efficiency will not be significantly reduced due to dust and insect prevention.

[0031] Secondly, please refer to the following as well. Figures 4 to 6 The anti-condensation module 20 also includes a fan base 22, which is movably mounted inside the housing 10. The fan base 22 is connected to the drive module 30 and is adapted to the filter screen 14. An axial fan 21 is fixed inside the fan base 22 at the end away from the filter screen 14. An arc-shaped air cavity 23 is provided inside the fan base 22 at the end near the filter screen 14. Dust removal air holes 24 are provided at the upper and lower ends of the arc-shaped air cavity 23, and the dust removal air holes 24 are adapted to the filter screen 14. A dust removal groove is provided at the end of the fan base 22 near the filter screen 14 and between the two dust removal air holes 24. Multiple bristles 25 are fixed inside the dust removal groove. The fan base 22 can move vertically inside the housing 10. In the initial state, the ends of the bristles 25 are in contact with the filter screen 14, and the diameter of the bristles 25 is less than or equal to the aperture of the mesh inside the filter screen 14.

[0032] The dust removal vent 24 has a flat internal structure, and its cross-sectional area is much smaller than the cross-sectional area of ​​the axial fan 21 installation position inside the fan base 22 (i.e., the cross-sectional area of ​​the end of the axial fan 21).

[0033] Furthermore, in this embodiment, the number of ventilation grids and anti-condensation modules 20 is set to two. The two ventilation grids are respectively opened at both ends of the housing 10, and the two anti-condensation modules 20 and the two ventilation grids are matched one-to-one. The forward and reverse operation are only used to distinguish the direction of gas circulation flow and do not constitute a specific limitation. In this embodiment, when the anti-condensation module 20 operates in the forward direction (i.e., the axial fan 21 rotates in the forward direction), the gas flows from the outside of the housing 10 to the inside of the housing 10; when the anti-condensation module 20 operates in the reverse direction (i.e., the axial fan 21 rotates in the reverse direction), the gas flows from the inside of the housing 10 to the outside of the housing 10.

[0034] In this embodiment, in environments with large day-night temperature differences, the temperature inside the housing 10 and the temperature and humidity outside the housing 10 are monitored by the cooperation of temperature sensor 11 and temperature and humidity sensor 12. When the temperature difference between the inside and outside of the housing 10 reaches a control threshold, the axial flow fan 21 is activated, causing the axial flow fan 21 to run in the forward direction. Through the cooperation of multiple anti-condensation modules 20, the gas inside and outside the housing 10 is circulated to balance the temperature inside and outside the housing 10 and prevent condensation from occurring inside the housing 10. When the filter screen 14 is clogged with dust, insects, or debris, the drive module 30 is activated, causing the fan base 22 to move vertically. At the same time, the axial flow fan 21 is activated, causing the axial flow fan 21 to rotate in the reverse direction. The axial fan 21 drives the gas inside the housing 10 to pass sequentially through the axial fan 21, the arc-shaped air chamber 23, and the dust removal air hole 24 towards the filter screen 14. Due to the small cross-sectional area of ​​the arc-shaped air chamber 23, based on Bernoulli's principle, the gas velocity and dynamic pressure increase as it passes through the arc-shaped air chamber 23. The airflow exiting one of the arc-shaped air chambers 23 unclogs and cleans the mesh inside the filter screen 14. Simultaneously, as the fan base 22 moves vertically, the fixed connection between the fan base 22 and the brush bristles 25 causes the fan base 22 to move synchronously with the brush bristles 25. When the brush bristles 25 contact the filter screen 14, they unclog the blocked mesh inside the filter screen 14. As the fan base 22 continues to move, the other arc-shaped air chamber 24... The airflow from the air chamber 23 performs a third cleaning of the mesh inside the filter screen 14. Specifically, when the fan base 22 moves downwards, the airflow from the lower arc-shaped air chamber 23 performs a first cleaning of the mesh inside the filter screen 14, and then the bristles 25 perform a second cleaning. As the fan base 22 moves, the airflow from the upper arc-shaped air chamber 23 performs a third cleaning of the mesh inside the filter screen 14. When the fan base 22 moves upwards, the airflow from the upper arc-shaped air chamber 23 performs a first cleaning of the mesh inside the filter screen 14, and then the bristles 25 perform a second cleaning. The movement of bristles 22 causes the airflow from the lower arc-shaped air chamber 23 to perform a third unclogging and cleaning of the mesh inside the filter screen 14, and to clean the debris loosened by the bristles 25. Through the combination of multiple cleaning methods, dust, insects, and debris clogging the mesh of the filter screen 14 can be effectively removed, ensuring the ventilation efficiency of the filter screen 14 and avoiding poor heat dissipation or condensation problems caused by clogging. At the same time, the diameter of the bristles 25 is less than or equal to the aperture of the mesh inside the filter screen 14, allowing the bristles 25 to be smoothly inserted into the mesh for physical unclogging, further improving the cleaning effect. The flat structure design of the dust removal air hole 24, while ensuring the passage of airflow, also guides and accelerates the airflow, enhancing the impact cleaning ability of the airflow on the mesh.

[0035] It should be noted that, in order to ensure efficient gas circulation inside the housing 10, in this embodiment, when one of the two anti-condensation modules 20 is running in the forward direction, the other axial fan 21 is running in the reverse direction or stops running. In this embodiment, when one axial fan 21 is running in the forward direction, the other axial fan 21 is stopped running. Of course, this can be adjusted according to actual usage requirements. Unless otherwise specified, the axial fans 21 are all running in the forward direction.

[0036] Secondly, please refer to it again. Figures 5 to 7 Multiple vertically arranged rectifier plates 26 are provided at the upper and lower ends of the arc-shaped air cavity 23, and a rectifier channel is formed between two adjacent rectifier plates 26 located on the same horizontal plane.

[0037] In this embodiment, the rectifier channel can sort and guide the airflow passing through the arc-shaped air cavity 23, transforming the originally turbulent airflow into an orderly laminar flow. When the axial fan 21 rotates in reverse to perform dust removal, the airflow flows through the arc-shaped air cavity 23. Through the rectifier channel formed by the rectifier plate 26, the turbulence of the airflow can be effectively reduced, and the energy loss of the airflow during the flow process can be reduced, thereby increasing the airflow velocity and impact force, and enhancing the cleaning effect on the filter screen 14 mesh. At the same time, the rectified airflow can act more evenly on the surface and mesh of the filter screen 14, avoiding excessive concentration or dispersion of local airflow, ensuring the comprehensiveness and consistency of cleaning, further improving the unblocking efficiency of the filter screen 14, and ensuring the smoothness of subsequent ventilation and heat dissipation.

[0038] Please refer to it again. Figures 5 to 8 The dust removal groove has multiple air inlets 27 inside, and multiple bristles 25 and multiple air inlets 27 are distributed alternately. Multiple air guide plates 28 are rotatably connected to the middle of the arc-shaped air cavity 23, and the air inlets 27 and air guide plates 28 are compatible.

[0039] It should be noted that the rotation angle range of the air guide plate 28 is 0° to 90°. When the axial fan 21 rotates in the reverse direction, the air guide plate 28 is in the obstruction state; when the axial fan 21 rotates in the forward direction, the air guide plate 28 is in the guiding state.

[0040] In this embodiment, when heat dissipation is required inside the housing 10, the axial fan 21 rotates in the forward direction, and the air outside the housing 10 flows into the housing 10 through the dust removal vent 24. Due to the small cross-sectional area of ​​the dust removal vent 24, the negative pressure inside the fan base 22 increases. Under the action of negative pressure, the air guide plate 28 changes from a closed state to an open state, and the air outside the housing 10 flows into the housing 10 through the air inlet 27 and the air guide plate 28 in sequence. Through the cooperation of the air inlet 27 and the air guide plate 28, the air intake volume when the axial fan 21 rotates in the forward direction can be effectively increased, thereby ensuring heat dissipation efficiency. When it is necessary to unclog and clean the mesh inside the filter screen 14, the axial fan 21 rotates in the reverse direction, and the air guide plate 28 is in a closed state under the action of gravity, which can prevent airflow from passing through the inside of the air guide plate 28, thereby ensuring the flow rate and dynamic pressure of the airflow flowing out of the dust removal vent 24.

[0041] Please refer to it again. Figure 5 and Figure 6 An airflow sensor 29 is fixed at both the upper and lower ends of the fan base 22, and the monitoring end of the airflow sensor 29 extends into the interior of the rectifier channel.

[0042] In this embodiment, when the axial fan 21 rotates in the forward direction, the axial fan 21 drives the gas outside the housing 10 into the housing 10. The airflow sensor 29 monitors the air speed and flow rate inside the arc-shaped air cavity 23. When the airflow rate and air speed of the gas flowing into the arc-shaped air cavity 23 through the dust removal air hole 24 are significantly reduced, it can be determined that the filter screen 14 is seriously clogged. At this time, the axial fan 21 is started, causing the axial fan 21 to rotate in reverse. The anti-condensation module 20 can then unclog and clean the mesh inside the filter screen 14 without manual intervention. This realizes the intelligent self-cleaning function of the device in different usage areas, seasons, and weather conditions, effectively reducing manual maintenance costs. In addition, the airflow sensor 29 can also monitor the operating status of the ventilation system in real time, providing data support for subsequent fault diagnosis and performance optimization, ensuring the long-term stable and reliable operation of the device.

[0043] It should be noted that when the device is initially put into use, the initial gas flow rate of the air volume sensor 29 can be set. When the air volume sensor 29 detects that the flow rate inside the arc-shaped air cavity 23 is less than 50% of the initial gas flow rate and wind speed, the axial fan 21 can be started to run in reverse to clean the mesh inside the filter screen 14. Of course, the specific setting value of the axial fan 21 running in reverse can be adjusted according to the actual use requirements, and does not constitute a specific limitation here.

[0044] Please refer to it again. Figure 8 An anti-rotation plane is provided at the upper end of the air guide plate 28. The anti-rotation plane is configured to limit the air guide plate 28 after it is reset.

[0045] In this embodiment, the anti-rotation plane can limit the air guide plate 28 after it is reset (i.e., in the flow-blocking state), preventing the air guide plate 28 from continuing to rotate after it is reset.

[0046] Please refer to it again. Figure 4 The drive module 30 includes a drive motor 31, a screw 32, and a guide rod 33. The drive motor 31 is fixed inside the housing 10 and located at the upper end of the ventilation grid. The screw 32 is fixed to the output end of the drive motor 31 and is rotatably connected to the housing 10. The guide rod 33 is fixed inside the housing 10 and is threadedly connected to the fan base 22. The guide rod 33 is slidably connected to the fan base 22, and the screw 32 and the guide rod 33 are located on both sides of the fan base 22.

[0047] It should be noted that the drive motor 31 can drive the fan base 22 to move back and forth in the vertical direction by adjusting the rotation direction. In the initial state, the brush bristles 25 and the filter screen 14 are in contact, and at least one dust cleaning air hole 24 is in contact with the filter screen 14, so that the air volume sensor 29 inside the dust cleaning air hole 24 can monitor the gas flow inside the arc-shaped air cavity 23.

[0048] In this embodiment, when the axial fan 21 cleans the mesh inside the filter screen 14, the drive motor 31 is started, causing the output end of the drive motor 31 to rotate. Through the fixed connection between the drive motor 31 and the screw 32, the drive motor 31 drives the screw 32 to rotate. Through the threaded connection between the screw 32 and the fan base 22, the screw 32 drives the fan base 22 to move in the vertical direction. Through the reciprocating movement of the fan base 22, combined with the joint action of the axial fan 21 and the brush bristles 25, the mesh inside the filter screen 14 is cleaned.

[0049] The working principle of this invention is as follows: In environments with large day-night temperature differences, the temperature inside the housing 10 and the temperature and humidity outside the housing 10 are monitored by the cooperation of temperature sensor 11 and temperature and humidity sensor 12. Based on the humidity (RH) of the external environment of the housing 10, the control threshold value is determined. When the temperature difference between the inside and outside of the housing 10 reaches the control threshold, the axial flow fan 21 is started, causing the axial flow fan 21 to run in the forward direction, driving the air circulation inside and outside the housing 10 to balance the temperature inside and outside the housing 10 and prevent condensation inside the housing 10. When the mesh of the filter screen 14 is clogged and needs to be cleaned, the drive motor 31 is started, which drives the fan base 22 vertically. The fan moves back and forth in a straight direction. At the same time, the axial fan 21 is activated, causing it to rotate in the opposite direction. This allows the gas inside the housing 10 to flow through the dust removal air hole 24 to the filter screen 14. During this process, the cross-sectional area of ​​the arc-shaped air cavity 23 is small. Based on Bernoulli's principle, the gas velocity and dynamic pressure increase, resulting in the first airflow impact cleaning of the filter screen 14. Simultaneously, as the fan base 22 moves vertically, it drives the bristles 25 to move synchronously. The diameter of the bristles 25 is less than or equal to the aperture of the filter screen 14, allowing them to be inserted into the mesh for physical unblocking, achieving a second cleaning. As the fan base 22 continues to move, the airflow from the dust removal air hole 24 at the other end performs a third airflow impact cleaning of the filter screen 14.

[0050] The above are merely preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described or explained in this invention are implemented according to conventional methods in the art unless otherwise specified or limited.

Claims

1. A metering box with intelligent identification and classification of abnormal electricity consumption behavior, characterized in that: The system includes a housing (10), with ventilation grilles at both ends. A temperature sensor (11) is fixed to the upper part of the housing (10), and a temperature and humidity sensor (12) is fixed to the outer side of the housing (10). The temperature sensor (11) is configured to monitor the temperature inside the housing (10), and the temperature and humidity sensor (12) is configured to monitor the ambient temperature and humidity outside the housing (10). A louvered waterproof plate (13) is detachably fixed to the outer side of the ventilation grille, and a filter screen (14) is fixed inside the louvered waterproof plate (13). The filter screen (14) is compatible with the ventilation grille. The system also includes: Anti-condensation module (20), the anti-condensation module (20) includes an axial fan (21), the axial fan (21) is assembled inside the housing (10), and the axial fan (21) is adapted to the filter screen (14); A drive module (30) is assembled inside the housing (10) and is connected to an anti-condensation module (20); The temperature sensor (11) and the temperature and humidity sensor (12) monitor the temperature inside and outside the housing (10) respectively and calculate the temperature difference. When the temperature difference reaches the control threshold, the axial fan (21) runs to drive the gas flow inside and outside the housing (10) and balance the temperature difference inside and outside the housing (10).

2. A metering box with intelligent identification and classification of abnormal electricity consumption behavior according to claim 1, characterized in that: When the ambient humidity outside the housing (10) is RH≥90%, the control threshold is 1~2℃; when the ambient humidity outside the housing (10) is 90%>RH≥70%, the control threshold is 2~3℃; when the ambient humidity outside the housing (10) is 80%>RH≥50%, the control threshold is 4~5℃; when the ambient humidity outside the housing (10) is RH<50%, the control threshold is 8~10℃.

3. A metering box with intelligent identification and classification of abnormal electricity consumption behavior according to claim 1, characterized in that: The filter screen (14) is made of metal wire and has a mesh structure with a mesh diameter of 0.3mm to 1.2mm and an opening rate of ≥65%. Under the rated air volume, the air volume attenuation inside the filter screen (14) is ≤8% and the initial resistance is ≤30Pa.

4. A metering box with intelligent identification and classification of abnormal electricity consumption behavior according to claim 1, characterized in that: The anti-condensation module (20) also includes a fan base (22), which is movably mounted inside the housing (10). The fan base (22) is connected to the drive module (30), and the fan base (22) is adapted to the filter screen (14). The axial fan (21) is fixed inside the fan base (22) at the end away from the filter screen (14). An arc-shaped air cavity (23) is provided inside the fan base (22) at the end near the filter screen (14). (23) Dust removal air holes (24) are provided at the upper and lower ends of the interior, and the dust removal air holes (24) are adapted to the filter screen (14). The fan base (22) is located near the filter screen (14) and between the two dust removal air holes (24) with a dust removal groove. Multiple brush bristles (25) are fixed inside the dust removal groove. The fan base (22) can move in the vertical direction inside the housing (10). In the initial state, the ends of the brush bristles (25) are in contact with the filter screen (14).

5. A metering box with intelligent identification and classification of abnormal electricity consumption behavior according to claim 4, characterized in that: Multiple rectifier plates (26) are provided at the upper and lower ends of the arc-shaped air cavity (23), and a rectification channel is formed between two adjacent rectifier plates (26) located on the same horizontal plane.

6. A metering box with intelligent identification and classification of abnormal electricity consumption behavior according to claim 4, characterized in that: The dust removal groove has multiple air inlets (27) inside, and the multiple bristles (25) and multiple air inlets (27) are staggered. The arc-shaped air cavity (23) has multiple air guide plates (28) rotatably connected in the middle, and the air inlets (27) and air guide plates (28) are compatible.

7. A metering box with intelligent identification and classification of abnormal electricity consumption behavior according to claim 6, characterized in that: The rotation angle range of the air guide plate (28) is 0° to 90°. When the axial fan (21) rotates in the forward direction, the air guide plate (28) is in the air guiding state. When the axial fan (21) rotates in the reverse direction, the air guide plate (28) is in the air blocking state.

8. A metering box with intelligent identification and classification of abnormal electricity consumption behavior according to claim 4, characterized in that: The upper and lower ends of the fan base (22) are both fixed with air volume sensors (29), and the monitoring ends of the air volume sensors (29) extend into the interior of the rectifier channel.

9. A metering box with intelligent identification and classification of abnormal electricity consumption behavior according to claim 7, characterized in that: The upper end of the air guide plate (28) is provided with an anti-rotation plane, which is configured to limit the air guide plate (28) after it is reset.

10. A metering box with intelligent identification and classification of abnormal electricity consumption behavior according to claim 4, characterized in that: The drive module (30) includes a drive motor (31), a screw (32) and a guide rod (33). The drive motor (31) is fixed inside the housing (10) and located at the upper end of the ventilation grid. The screw (32) is fixed to the output end of the drive motor (31) and is rotatably connected to the housing (10). The guide rod (33) is fixed inside the housing (10) and is threadedly connected to the fan base (22). The guide rod (33) is slidably connected to the fan base (22) and is located on both sides of the fan base (22).

Images