All-scene intelligent lightning protection and anti-interference metering box

Abstract

The application belongs to the technical field of power distribution equipment, and particularly relates to a full-scene intelligent lightning protection and anti-interference metering box, which comprises a metal outer box, an incoming line partition plate and an outgoing line partition plate fixed on the two sides of the inside of the metal outer box, a wiring mechanism installed on the side wall of the incoming line partition plate and the outgoing line partition plate, a box door arranged on the outside of the metal outer box, and a surge protector isolation cover arranged on the inside of the metal outer box and located at the position of the side of the incoming line partition plate. The application can construct a multi-level electromagnetic shielding system, optimize auxiliary shielding performance, improve the anti-interference ability and the stability of the metering accuracy of the metering box, ensure the stability of the working environment temperature of the surge protector, improve the lightning protection reliability, improve the applicability of the full scene, improve the continuous lightning protection performance of the surge protector, and remind the personnel to maintain the metering box in time when the sealing of the box door fails, so that the electromagnetic shielding effect of the metering box is maintained.

Description

Technical Field

[0001] This invention belongs to the field of power distribution equipment technology, and in particular relates to an intelligent lightning protection and anti-interference metering box for all scenarios. Background Technology

[0002] As a core terminal device in power distribution systems, metering boxes are widely used in residential communities, industrial plants, photovoltaic power stations, and other scenarios. They are responsible for electricity metering, data acquisition and transmission, and provide key data support for electricity billing, line loss analysis, and system scheduling optimization.

[0003] Existing metering boxes mostly use a single metal enclosure or a simple shielding structure, which is insufficient in protecting against broadband electromagnetic interference. Low-frequency stray currents can easily penetrate and high-frequency radio frequency interference can easily leak, leading to drift in metering accuracy. Furthermore, the shielding effectiveness is fixed, and the ability to adapt to environmental temperature is poor. For example, low temperatures can easily cause a decrease in the conductivity of the shielding layer material, resulting in a reduction in shielding effectiveness. Secondly, high and low temperature environments can cause surge protectors to experience nominal voltage drift, delayed response speed, and abnormally increased leakage current, resulting in insufficient discharge capacity or malfunction during lightning strikes, a significant reduction in protection effectiveness, and poor applicability to different scenarios. Summary of the Invention

[0004] The purpose of this invention is to address the above-mentioned problems by providing an intelligent lightning protection and interference prevention metering box for all scenarios.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a full-scene intelligent lightning protection and anti-interference metering box, comprising a metal outer casing and inlet and outlet partitions fixed on both sides inside the metal outer casing, wherein wiring mechanisms are installed on the side walls of both the inlet and outlet partitions, a door is provided on the outside of the metal outer casing, and a surge protector isolation cover is installed inside the metal outer casing on one side of the inlet partition, and further comprising:

[0006] An inner protective cover is fixed between the metal outer casing, the inlet partition, and the outlet partition. The inner sidewall of the inner protective cover is integrally formed with a frame-shaped abutment part, and a fixed inner shielding layer is installed on the inner sidewall of the inner protective cover.

[0007] A hollow channel plate that matches the frame-shaped abutment part is fixed to the side wall of the metal outer box, and a movable inner shielding layer is fixed to the inner side wall of the hollow channel plate. The interior of the inner protective cover and the hollow channel plate are both filled with mixed dielectric gas.

[0008] A temperature control unit is installed on the side wall of the metal outer casing, and the temperature control unit is connected to the inner protective cover and the hollow slot plate;

[0009] A cooling mechanism is located inside the temperature control unit and is connected to the inside of the surge protector isolation cover;

[0010] A controller with a backup power supply is fixed to the back of the metal casing, and the temperature control unit and cooling mechanism are both electrically connected to the controller.

[0011] Preferably, the temperature control unit includes a mounting cover fixed to the back of a metal outer casing. A sealing frame is fixed inside the mounting cover, abutting against the back of the metal outer casing. A DC semiconductor cooler is fixed to the side wall of the mounting cover, located inside the sealing frame, with one end of the DC semiconductor cooler inside the sealing frame and the other end outside the mounting cover. A temperature sensor is fixed inside the mounting cover, with its measuring end located inside the inner protective cover. L-shaped tubes are fixedly inserted into the side walls of both the inlet and outlet partitions. Two U-shaped tubes are fixedly inserted into the side wall of the door. After the ends of the U-shaped tubes abut against the L-shaped tubes, the inner protective cover communicates with the interior of the hollow slotted plate. The controller controls the DC semiconductor cooler to operate based on the electrical signal fed back from the temperature sensor. An airflow driving mechanism is installed inside the mounting cover.

[0012] Preferably, the airflow driving mechanism includes a diaphragm pump fixed to the side wall of the sealing frame. The suction end of the diaphragm pump is fixed with a suction pipe that communicates with the inside of the inner protective cover. The discharge end of the diaphragm pump is connected to the inside of the sealing frame. A connecting pipe with one end sealed is fixedly inserted into the side wall of the sealing frame. A first diverter pipe that communicates with the inside of the inner protective cover is fixedly inserted into the wall of the connecting pipe. A sealing partition is fixed between the inside of the inner protective cover and the inner wall of the metal outer casing. The first diverter pipe and the suction pipe are respectively arranged on both sides of the sealing partition. Normally closed valves are installed inside the L-shaped pipe and the U-shaped pipe. The normally closed valves and the diaphragm pump are electrically connected to the controller.

[0013] Preferably, the cooling mechanism includes a branch suction pipe fixedly inserted into the wall of the suction pipe, and the air inlet end of the branch suction pipe penetrates through the side wall of the mounting cover. A second branch pipe is fixedly inserted into the wall of the connecting pipe. The second branch pipe is connected to the interior of the surge protector isolation cover. The side wall of the metal outer casing is provided with an exhaust hole connected to the surge protector isolation cover. An electrically controlled valve electrically connected to the controller is installed inside the suction pipe, the branch suction pipe, the first branch pipe, and the second branch pipe.

[0014] Preferably, a pressure sensor is fixed inside the mounting cover, and the pressure measuring end of the pressure sensor is located inside the inner protective cover. The pressure sensor is electrically connected to the controller.

[0015] Preferably, a movable block is fixed to the side wall of the door, and a fixed block corresponding to the position of the movable block is fixed to the outer side wall of the metal outer box. A connecting block is hinged to the side wall of the movable block, and an anti-slip rod is fixed to the side wall of the connecting block, and the anti-slip rod is slidably connected to the side wall of the fixed block.

[0016] Preferably, a frame-shaped mounting plate is fixed to the inner sidewall of the frame-shaped abutment portion, and a display panel is mounted on the frame-shaped mounting plate.

[0017] Preferably, a U-shaped plate is fixed to the outer wall of the mounting cover, one end of the DC semiconductor cooler is disposed inside the U-shaped plate, and a cooling fan is fixed inside the U-shaped plate.

[0018] Compared with existing technologies, the advantages of a fully intelligent lightning protection and interference prevention metering box are:

[0019] 1. Through the coordinated design of the metal outer casing, inlet and outlet partitions, wiring mechanism, door, surge protector isolation cover, inner protective cover, frame-shaped abutment part, fixed inner shielding layer, hollow slot plate, movable inner shielding layer, mixed dielectric gas, temperature control unit, and controller, a multi-level electromagnetic shielding system can be constructed. This effectively improves the anti-interference capability of the metering box, enhances the stability of metering accuracy, and allows for dynamic optimization of its auxiliary shielding performance by adjusting the temperature of the mixed dielectric gas through the temperature control unit. Simultaneously, it enables temperature control of the surge protector's operating environment, preventing issues such as nominal voltage drift and response lag caused by high and low temperatures, thus improving the reliability of lightning protection. Furthermore, it enhances the stability of the internal operating temperature of the metering box, facilitating accurate metering.

[0020] 2. The cooling mechanism, in conjunction with the temperature control unit, can quickly reduce the temperature of the surge protector when a lightning strike occurs. This prevents the continuous high temperature generated by the lightning strike from accelerating the thermal aging of the internal components of the surge protector and reducing the sensitivity of the tripping mechanism. It effectively eliminates the negative impact of residual heat on the response speed and discharge threshold accuracy of subsequent lightning waves, ensuring that the surge protector can maintain stable protection performance after a single lightning strike and avoiding protection failure caused by the accumulation of high temperature from a single lightning strike during subsequent lightning strikes.

[0021] 3. By using the air pressure sensor, the pressure drop caused by the escape of the mixed dielectric material can be used to determine the failure of the seal between the door and the metal outer casing. This can remind personnel to promptly inspect and maintain the connection between the door and the metal outer casing to prevent gaps from appearing between the door and the metal outer casing and affecting the electromagnetic shielding effect. Attached Figure Description

[0022] Figure 1 This is a front three-dimensional structural diagram of an intelligent lightning protection and anti-interference metering box for all scenarios provided by the present invention;

[0023] Figure 2 This is a schematic diagram of the three-dimensional structure of the back of an intelligent lightning protection and anti-interference metering box for all scenarios provided by the present invention;

[0024] Figure 3This is a schematic diagram of the internal structure of the metal casing of an intelligent lightning protection and interference prevention metering box for all scenarios provided by the present invention;

[0025] Figure 4 This is a cross-sectional structural diagram of the metal casing of an intelligent lightning protection and anti-interference metering box for all scenarios provided by the present invention;

[0026] Figure 5 This is a three-dimensional structural diagram of the door of an intelligent lightning protection and interference prevention metering box for all scenarios provided by the present invention;

[0027] Figure 6 This invention provides an intelligent lightning protection and interference prevention metering box for all scenarios. Figure 5 Enlarged view of the structure of part A in the middle;

[0028] Figure 7 This is a schematic diagram of the connection structure between the inlet partition, the outlet partition, and the metal outer casing of an intelligent lightning protection and interference prevention metering box for all scenarios provided by the present invention.

[0029] Figure 8 This is a schematic diagram of the internal structure of the frame mounting plate of an intelligent lightning protection and anti-interference metering box for all scenarios provided by the present invention;

[0030] Figure 9 This is a schematic diagram of the internal structure of the mounting cover of an intelligent lightning protection and interference prevention metering box for all scenarios provided by the present invention.

[0031] In the diagram: 1. Metal outer casing; 2. Inlet cable partition; 3. Outlet cable partition; 4. Wiring mechanism; 5. Box door; 6. Surge protector isolation cover; 7. Inner protective cover; 8. Frame-shaped abutment part; 9. Fixed inner shielding layer; 10. Hollow slot plate; 11. Movable inner shielding layer; 12. Temperature control unit; 121. Mounting cover; 122. Sealing frame; 123. DC semiconductor cooler; 124. Temperature sensor; 125. L-shaped tube; 126. U-shaped tube; 13. Cooling mechanism; 131. Dividing suction. Pipe, 132 Second Diversion Pipe, 133 Exhaust Hole, 134 Electrically Controlled Valve, 14 Controller, 15 Airflow Drive Mechanism, 151 Diaphragm Pump, 152 Suction Pipe, 153 Connecting Pipe, 154 First Diversion Pipe, 155 Sealing Partition, 156 Normally Closed Valve, 16 Pressure Sensor, 17 Movable Block, 18 Fixed Block, 19 Connecting Block, 20 Anti-Slip Rod, 21 Frame Mounting Plate, 22 Display Panel, 23 U-Shaped Plate, 24 Cooling Fan. Detailed Implementation

[0032] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0033] like Figures 1-9As shown, a fully intelligent lightning protection and interference prevention metering box includes a metal outer casing 1 and an inlet partition 2 and an outlet partition 3 fixed inside the metal outer casing 1 on both sides. Wiring mechanisms 4 are installed on the side walls of both the inlet partition 2 and the outlet partition 3. A door 5 is provided on the outside of the metal outer casing 1. A surge protector isolation cover 6 is installed inside the metal outer casing 1 on one side of the inlet partition 2. The metal outer casing 1 has openings on the side walls of the inlet partition 2 and the outlet partition 3, with side doors hinged to the openings for easy wiring. It also includes an inner protective cover 7, which is fixed to the metal outer casing 1. Between the outer casing 1, the inlet partition 2, and the outlet partition 3, the inner protective cover 7 has an integrally formed frame-shaped abutment part 8 on its inner side wall. The inner side wall of the inner protective cover 7 is equipped with a fixed inner shielding layer 9. A hollow channel plate 10 that matches the frame-shaped abutment part 8 is fixed to the side wall of the metal outer casing 1, and a movable inner shielding layer 11 is fixed to the inner side wall of the hollow channel plate 10. The interior of the inner protective cover 7 and the hollow channel plate 10 are both filled with a mixed dielectric gas. The mixed dielectric gas can be a mixture of sulfur hexafluoride and dry air (by volume, sulfur hexafluoride is about 10% and dry air is about 90%).

[0034] The temperature control unit 12 is installed on the side wall of the metal outer casing 1, and is connected to the inner protective cover 7 and the hollow slot plate 10. The temperature control unit 12 includes a mounting cover 121 fixed to the back of the metal outer casing 1. A sealing frame 122 that abuts against the back of the metal outer casing 1 is fixed inside the mounting cover 121. A DC semiconductor cooler 123 is fixed on the side wall of the mounting cover 121 at a position inside the sealing frame 122. One end of the DC semiconductor cooler 123 is located inside the sealing frame 122, and the other end is located outside the mounting cover 121. A temperature sensor 124 is fixed inside the mounting cover 121, and the temperature measuring end of the temperature sensor 124 is set... Inside the inner protective cover 7, L-shaped tubes 125 are fixedly inserted into the side walls of the inlet partition 2 and the outlet partition 3. Two U-shaped tubes 126 are fixedly inserted into the side wall of the door 5. After the ends of the U-shaped tubes 126 and L-shaped tubes 125 abut against each other, the inner protective cover 7 is connected to the interior of the hollow slot plate 10. The controller 14 controls the DC semiconductor cooler 123 to work according to the electrical signal fed back by the temperature sensor 124. An airflow driving mechanism 15 is installed inside the mounting cover 121. The temperature sensor 124 can monitor the temperature and convert the temperature into an electrical signal to feed back to the controller 14. The controller 14 then controls the DC semiconductor cooler 123 to work accordingly.

[0035] The airflow driving mechanism 15 includes a diaphragm pump 151 fixed to the side wall of the sealing frame 122. The suction end of the diaphragm pump 151 is fixed with a suction pipe 152 that communicates with the inside of the inner protective cover 7. The outlet end of the diaphragm pump 151 is connected to the inside of the sealing frame 122. A connecting pipe 153 with one end sealed is fixedly inserted into the side wall of the sealing frame 122. A first diversion pipe 154 that communicates with the inside of the inner protective cover 7 is fixedly inserted into the pipe wall of the connecting pipe 153. A sealing partition 155 is fixed between the inside of the inner protective cover 7 and the inner wall of the metal outer casing 1. The first diversion pipe 154 and the suction pipe 152 are respectively arranged on both sides of the sealing partition 155. A normally closed valve 156 is installed inside both the L-shaped pipe 125 and the U-shaped pipe 126. The normally closed valve 156 and the diaphragm pump 151 are electrically connected to the controller 14. The normally closed valve 156 automatically closes after power failure.

[0036] The cooling mechanism 13 is located inside the temperature control unit 12 and is connected to the inside of the surge protector isolation cover 6. The controller 14 with a backup power supply is fixed to the back of the metal outer casing 1. Both the temperature control unit 12 and the cooling mechanism 13 are electrically connected to the controller 14. The cooling mechanism 13 includes a branch suction pipe 131 fixedly inserted into the wall of the suction pipe 152, and the air inlet end of the branch suction pipe 131 penetrates the side wall of the mounting cover 121. A second branch pipe is fixedly inserted into the wall of the connecting pipe 153. 132, the second diversion pipe 132 is connected to the inside of the surge protector isolation cover 6. The side wall of the metal outer casing 1 is provided with an exhaust port 133 connected to the surge protector isolation cover 6. The intake pipe 152, the diversion pipe 131, the first diversion pipe 154 and the second diversion pipe 132 are all equipped with an electrically controlled valve 134 that is electrically connected to the controller 14. A pressure valve is provided at the exhaust port 133. The pressure valve will only open when the diaphragm pump 151 delivers airflow into the surge protector isolation cover 6.

[0037] A pressure sensor 16 is fixed inside the mounting cover 121, and the pressure measuring end of the pressure sensor 16 is located inside the inner protective cover 7. The pressure sensor 16 is electrically connected to the controller 14. The pressure sensor 16 can detect the air pressure inside the inner protective cover 7 and send an electrical signal back to the controller 14 after the air pressure drops to a threshold.

[0038] A movable block 17 is fixed to the side wall of the door 5, and a fixed block 18 corresponding to the position of the movable block 17 is fixed to the outer side wall of the metal outer box 1. A connecting block 19 is hinged to the side wall of the movable block 17, and an anti-slip rod 20 is fixed to the side wall of the connecting block 19. The anti-slip rod 20 is slidably connected to the side wall of the fixed block 18, which makes it easy to open the door 5.

[0039] A frame-shaped mounting plate 21 is fixed to the inner side wall of the frame-shaped abutment part 8. A display panel 22 is mounted on the frame-shaped mounting plate 21. The display terminals of current transformers and voltage transformers can be installed through the display panel 22.

[0040] A U-shaped plate 23 is fixed to the outer wall of the mounting cover 121. One end of the DC semiconductor cooler 123 is located inside the U-shaped plate 23. A cooling fan 24 is fixed inside the U-shaped plate 23. When the hot end of the DC semiconductor cooler 123 is outside the mounting cover 121, the cooling fan 24 can assist the DC semiconductor cooler 123 in heat dissipation and cooling.

[0041] The operating principle of this invention is explained as follows: Wiring is performed through the wiring mechanism 4 on the side wall of the inlet partition 2 and the outlet partition 3. Current transformers, voltage transformers, energy meters, circuit breakers, and other devices are installed on the crossarm inside the inner protective cover 7. At the same time, the surge protector is installed inside the surge protector isolation cover 6 and the wiring is completed. Then, the display terminal of the energy meter is installed on the side wall of the display panel 22, and the display panel 22 is installed in the frame mounting plate 21. Finally, the assembly of the metering box is completed by closing the box door 5 (the side wall of the box door 5 is provided with a door lock structure for locking connection with the metal outer box 1).

[0042] During normal operation, the controller 14 starts the diaphragm pump 151, simultaneously opening the electrically controlled valve 134 inside the suction pipe 152 and the electrically controlled valve 134 inside the first diversion pipe 154, and energizing all normally closed valves 156. At this time, the diaphragm pump 151 draws in the mixed dielectric gas located on one side of the sealing partition 155 inside the inner protective cover 7 through the suction pipe 152 and delivers it to the inside of the sealing frame 122. Subsequently, the mixed dielectric gas enters the other side of the sealing partition 155 inside the inner protective cover 7 through the connecting pipe 153 and the first diversion pipe 154. Then, the mixed dielectric gas enters the hollow trough plate 10 through the L-shaped pipe 125 and U-shaped pipe 126 on this side. Next, the mixed dielectric gas inside the hollow trough plate 10 flows back to the inside of the inner protective cover 7 through the U-shaped pipe 126 and L-shaped pipe 125 on the other side. Furthermore, the temperature of the flowing mixed dielectric gas can be monitored by the temperature sensor 124. When the temperature is high, the controller 14 controls the DC semiconductor cooler 123 to cool the inside of the sealing frame 122. Conversely, when the temperature is low, the controller 14 controls the DC semiconductor cooler 123 to reverse the positive and negative terminals of the power supply, so that the inside of the sealing frame 122 can be heated by the DC semiconductor cooler 123. The dielectric constant of the mixed dielectric can be dynamically optimized. By utilizing the circulation of the mixed dielectric and controlling the temperature of the mixed dielectric gas, the mixed dielectric gas can be tightly filled in the gap between the fixed inner shielding layer 9 and the movable inner shielding layer 11, which enhances the blocking and absorption capability of broadband electromagnetic interference. At the same time, it maintains the stable temperature environment inside the inner protective cover 7, reduces the temperature impact on the fixed inner shielding layer 9 and the movable inner shielding layer 11, helps maintain the stable electromagnetic shielding performance of the two, and ensures the stability of the temperature inside the metering box, which is conducive to the reliable operation of core components such as metering transformers.

[0043] Secondly, in the event of a lightning strike, the surge protector automatically activates, rapidly diverting the surge current to the ground. Simultaneously, the microswitch or current sensor built into the surge protector sends a start signal to the controller 14. The controller 14 then closes the electrically controlled valves 134 inside the first shunt pipe 154 and the intake pipe 152, and opens the electrically controlled valves 134 inside the intake pipe 131 and the second shunt pipe 132. Simultaneously, the controller 14 controls the DC semiconductor cooler 123 to cool the interior of the sealing frame 122. At this time, the diaphragm pump 151 delivers external air into the sealing frame 122. After being cooled by the DC semiconductor cooler 123, the cold air enters the surge protector isolation cover 6 through the connecting pipe 153 and the second shunt pipe 132, and is finally discharged through the exhaust port 133. Because surge protectors generate instantaneous high temperatures and continuously accumulate residual heat during lightning strikes, timely cooling of the surge protector with cold air can prevent accelerated thermal aging of its internal components and decreased sensitivity of the tripping mechanism caused by high temperatures. This ensures that the surge protector can maintain stable protective performance after a lightning strike. After a single start-up of the surge protector, the diaphragm pump 151 continuously delivers airflow into the surge protector isolation cover 6 for 5 minutes. The controller 14 controls the closing of the electrically controlled valve 134 inside the suction pipe 131 and the second diversion pipe 132, and controls the opening of the electrically controlled valve 134 inside the suction pipe 152 and the first diversion pipe 154, restoring normal airflow circulation (the controller 14 has a backup power supply, which can maintain operation when the power supply fails, and the controller 14 will send a prompt message to the remote terminal).

[0044] During use, if the gap between the door 5 and the metal outer casing 1 increases, causing a seal failure, the connection between the L-shaped tube 125 and the U-shaped tube 126 will also fail to seal. At this time, the mixed dielectric gas will leak, and the gas pressure of the mixed dielectric gas inside the inner protective cover 7 will continue to decrease. At this time, the pressure sensor 16 will detect the continuous decrease in gas pressure. After the gas pressure is lower than the threshold, the pressure sensor 16 will send an electrical signal to the controller 14. The controller 14 will then send an alarm message to the remote terminal to remind personnel to check the connection and sealing between the door 5 and the metal outer casing 1 in time. When opening the door 5, first open the door lock structure of the door 5, and then pull the door 5 outward. At this time, the door 5 will move the anti-slip rod 20. After the pulling is finished, the door 5 can be opened by turning it to one side (when the door 5 is opened, the controller 14 controls each normally closed valve 156 to cut off the power to prevent the mixed dielectric gas from escaping).

[0045] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A full-scene intelligent lightning protection and anti-interference metering box, comprising a metal outer box (1) and an inlet partition (2) and an outlet partition (3) fixed on both sides inside the metal outer box (1), wherein the side walls of the inlet partition (2) and the outlet partition (3) are equipped with wiring mechanisms (4), the outer side of the metal outer box (1) is provided with a box door (5), and a surge protector isolation cover (6) is installed inside the metal outer box (1) on one side of the inlet partition (2), characterized in that, Also includes: The inner protective cover (7) is fixed between the metal outer box (1), the inlet partition (2) and the outlet partition (3). The inner sidewall of the inner protective cover (7) is integrally formed with a frame-shaped abutment part (8). The inner sidewall of the inner protective cover (7) is equipped with a fixed inner shielding layer (9). A hollow slotted plate (10) that matches the frame-shaped abutment part (8) is fixed to the side wall of the metal outer box (1), and an movable inner shielding layer (11) is fixed to the inner side wall of the hollow slotted plate (10). The inner protective cover (7) and the hollow slotted plate (10) are both filled with mixed dielectric gas. Temperature control unit (12) is installed on the side wall of the metal outer casing (1), and temperature control unit (12) is connected to inner protective cover (7) and hollow slot plate (10); The cooling mechanism (13) is located inside the temperature control unit (12), and the cooling mechanism (13) is connected to the inside of the surge protector isolation cover (6); A controller (14) with a backup power supply is fixed to the back of the metal casing (1), and the temperature control unit (12) and the cooling mechanism (13) are both electrically connected to the controller (14).

2. The all-scenario intelligent lightning protection and anti-interference metering box according to claim 1, characterized in that, The temperature control unit (12) includes a mounting cover (121) fixed to the back of the metal outer casing (1). A sealing frame (122) is fixed inside the mounting cover (121) and abuts against the back of the metal outer casing (1). A DC semiconductor cooler (123) is fixed to the side wall of the mounting cover (121) at a position inside the sealing frame (122). One end of the DC semiconductor cooler (123) is located inside the sealing frame (122), and the other end is located outside the mounting cover (121). A temperature sensor (124) is fixed inside the mounting cover (121), and the temperature sensor (124) is... The temperature measuring end of 24) is set inside the inner protective cover (7). The side walls of the inlet partition (2) and the outlet partition (3) are fixedly connected with L-shaped tubes (125). The side walls of the box door (5) are fixedly connected with two U-shaped tubes (126). After the U-shaped tubes (126) and the L-shaped tubes (125) abut against each other, the inner protective cover (7) is connected to the interior of the hollow slot plate (10). The controller (14) controls the DC semiconductor cooler (123) to work according to the electrical signal fed back by the temperature sensor (124). The airflow driving mechanism (15) is installed inside the mounting cover (121).

3. The intelligent lightning protection and anti-interference metering box for all scenarios according to claim 2, characterized in that, The airflow driving mechanism (15) includes a diaphragm pump (151) fixed to the side wall of the sealing frame (122). The suction end of the diaphragm pump (151) is fixed with a suction pipe (152) that communicates with the inside of the inner protective cover (7). The outlet end of the diaphragm pump (151) is connected to the inside of the sealing frame (122). A connecting pipe (153) with one end sealed is fixedly inserted into the side wall of the sealing frame (122). The pipe wall of the connecting pipe (153) is fixedly inserted with a connection to the inner protective cover. (7) The first diversion pipe (154) is internally connected. A sealing partition (155) is fixed between the inside of the inner protective cover (7) and the inner wall of the metal outer box (1). The first diversion pipe (154) and the suction pipe (152) are respectively arranged on both sides of the sealing partition (155). The L-shaped pipe (125) and the U-shaped pipe (126) are both equipped with normally closed valves (156). The normally closed valves (156) and the diaphragm pump (151) are electrically connected to the controller (14).

4. The all-scenario intelligent lightning protection and anti-interference metering box according to claim 3, characterized in that, The cooling mechanism (13) includes a branch suction pipe (131) fixedly inserted into the wall of the suction pipe (152), and the air inlet end of the branch suction pipe (131) penetrates the side wall of the mounting cover (121). The wall of the connecting pipe (153) is fixedly inserted with a second branch pipe (132), which is connected to the inside of the surge protector isolation cover (6). The side wall of the metal outer casing (1) is provided with an exhaust hole (133) connected to the surge protector isolation cover (6). The suction pipe (152), the branch suction pipe (131), the first branch pipe (154) and the second branch pipe (132) are all equipped with an electric control valve (134) electrically connected to the controller (14).

5. The all-scenario intelligent lightning protection and anti-interference metering box according to claim 2, characterized in that, A pressure sensor (16) is fixed inside the mounting cover (121), and the pressure measuring end of the pressure sensor (16) is located inside the inner protective cover (7). The pressure sensor (16) is electrically connected to the controller (14).

6. The all-scenario intelligent lightning protection and anti-interference metering box according to claim 1, characterized in that, The side wall of the door (5) is fixed with a movable block (17), and the outer side wall of the metal outer box (1) is fixed with a fixed block (18) corresponding to the position of the movable block (17). The side wall of the movable block (17) is hinged with a connecting block (19), and the side wall of the connecting block (19) is fixed with an anti-slip rod (20), and the anti-slip rod (20) is slidably connected to the side wall of the fixed block (18).

7. The all-scenario intelligent lightning protection and anti-interference metering box according to claim 1, characterized in that, The inner wall of the frame-shaped abutment part (8) is fixed with a frame-shaped mounting plate (21), and the frame-shaped mounting plate (21) is equipped with a display panel (22).

8. The all-scenario intelligent lightning protection and anti-interference metering box according to claim 2, characterized in that, A U-shaped plate (23) is fixed to the outer wall of the mounting cover (121), one end of the DC semiconductor cooler (123) is disposed inside the U-shaped plate (23), and a cooling fan (24) is fixed inside the U-shaped plate (23).

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