An electric energy metering box based on wireless communication

Abstract

The application belongs to the technical field of metering box, and particularly relates to an electric energy metering box based on wireless communication, which comprises a shell, an electric appliance, a wire, a box door and a wireless communication unit; further comprises a partition plate, the partition plate is arranged in the shell, the electric appliances are uniformly arranged on one side of the partition plate, the edge of the partition plate is fixed on the inner wall of the shell through bolts, wiring boards are uniformly arranged on the partition plate, wiring grooves are uniformly arranged on the wiring boards, and wire pressing rods are slidably connected in the wiring boards through springs; when a monitoring sensor detects a dangerous situation such as smoke or high temperature, the electric telescopic rod drives the sliding plate to quickly slide into the adjacent wiring boards through the sliding rod, and triggers a first position sensor; the sliding plate, the wiring board and the partition plate surround each row of arranged electric appliances, separate the electric appliances in the metering box, avoid the smoke or flame floating upwards, cause the upper layer of electric appliances in the shell to be ignited or damaged, and cause the dangerous situation to expand, thereby improving the safety of the metering box.

Description

Technical Field

[0001] This invention belongs to the field of metering box technology, specifically a power metering box based on wireless communication. Background Technology

[0002] Wireless communication-based electricity metering boxes are intelligent devices that combine traditional metering boxes with wireless communication technology. Through a built-in wireless module, they enable remote data acquisition, status monitoring, and anomaly alarms. While retaining the features of traditional metering boxes, wireless communication-based electricity metering boxes add a data acquisition terminal, a wireless communication module, a sensing and control unit, and a power supply module. By integrating metering, communication, and sensing, wireless communication-based electricity metering boxes upgrade from manual management to intelligent operation and maintenance. Their core value lies in improving efficiency, reducing costs, and enhancing safety. With the development of 5G and IoT technologies, their functions will be further expanded, making them a key node on the electricity consumption side of the smart grid.

[0003] However, during prolonged outdoor use, the inlet and outlet terminals and meter terminals inside the outdoor metering cabinet may experience poor contact due to long-term vibration, such as from roadside vehicles, oxidation, or humid environments. This can significantly increase contact resistance. According to Joule's law, a large current will generate a lot of heat. For example, a 100A current passing through a 1Ω contact resistance can generate an instantaneous power of 10kW, enough to make the temperature of the metal terminals exceed 100℃, or even melt the insulation layer, leading to a fire in the metering box. Furthermore, the ideal state for wire connections is tight contact, with the wire and terminal, and the terminal and terminal, directly bonded through the metal surface, resulting in low contact resistance. Loose connections, such as loose screws, oxide layer obstruction, or loose wire crimping, will disrupt this tight connection. In the case of a loose connection, the contact between the wire and the terminal may change from surface contact to point contact or line contact, with the effective conductive area being smaller than normal. This can cause the contact resistance at the loose connection to rise from normal, leading to overheating or even a fire. Summary of the Invention

[0004] To overcome the shortcomings of existing technologies and solve the aforementioned technical problems, this invention proposes an energy metering box based on wireless communication.

[0005] The technical solution adopted by this invention to solve its technical problem is as follows: This invention proposes a power metering box based on wireless communication, including a shell, electrical components, wires, a box door, and a wireless communication unit; it also includes:

[0006] A partition is located inside the housing. Electrical appliances are evenly arranged on one side of the partition. The perimeter of the partition is fixed to the inner wall of the housing by bolts. Wiring boards are evenly arranged on the partition, and wiring grooves are evenly arranged on the wiring boards. A wire pressing rod is slidably connected to the wiring board by a spring, and one end of the wire pressing rod extends out of one side of the wiring board and away from the partition. A cutter is evenly arranged on the wire pressing rod, and the cutter slides in the wiring groove and is close to the wire. A film is provided in the wiring groove, and one side of the film is adhered to the cutting edge of the cutter.

[0007] A sealing plate is installed on the side of the electrical appliance away from the partition. Sliding rods are evenly distributed on the sealing plate, passing through it and slidably connected. One end of each sliding rod is connected to an electric telescopic rod on the sealing plate, and the other end is fitted with a sliding plate. Both ends of the sliding plate contact the partition, and the middle contacts a wiring board. A pressing block is provided on the sliding plate, with its inclined surface contacting one end of a pressing rod. A first position sensor and a second position sensor are respectively installed on the wiring board, and monitoring sensors are also arranged on the wiring board. A fire extinguishing device is installed inside the housing, and a connecting pipe is provided inside the partition. One end of the connecting pipe is located between adjacent upper and lower wiring boards, and the other end is connected to the fire extinguishing device via a valve.

[0008] Preferably, the wiring board is provided with uniformly distributed grooves, the inner wall of the grooves is provided with toothed grooves, a pressing block is slidably connected in the groove, a spring is provided on the part of the pressing block facing the inner wall of one end of the groove, a locking block is slidably connected to the pressing block through the spring, one end of the locking block is located above the groove, the other end is engaged with the toothed groove, and a pressing rod is slidably connected to the side of the pressing block away from the wiring board through the spring, one end of the pressing rod is located in the pressing block and one side is inclined, the inner wall of the pressing block contacts the inclined surface of one end of the pressing rod, a pressing plate is provided at the other end of the pressing rod, the wire passes between two adjacent pressing plates, a clamping block is slidably connected to the pressing plate through a tension spring, one end of the clamping block extends out of the pressing plate and is coated with a color developer.

[0009] Preferably, the sliding plate is provided with a pressing auxiliary rod, one end of which is inclined and contacts the locking block, and a push block is provided on one side of the pressing auxiliary rod, with the end of the push block away from the sliding plate contacting the pressing block.

[0010] Preferably, the pressing block is provided with a cleaning belt, one end of which is fixed to the wiring board and the other end is wrapped around the pressing plate. An elastic rope is provided at the ends of adjacent pressing plates that are far apart from each other, and one end of the elastic rope is connected to the end of the cleaning belt wrapped around the pressing plate.

[0011] Preferably, the pressing pieces are provided with cable management grooves on the side that are close to each other. The cable management grooves are vertically arranged and evenly distributed. One cable management groove and one clamping block are provided for one cable management groove. One surface of two adjacent pressing pieces is provided with a guide rod and the other surface is provided with a guide groove. One end of the guide rod faces the inside of the guide groove.

[0012] Preferably, the pressing piece is provided with a guide ring, and the wire passes through the center of the guide ring.

[0013] Preferably, the surface of the clamping block is uniformly provided with protrusions, and a heat shrink tube is sleeved on the part of the wire near the pressing piece. The outer circumferential surface of the heat shrink tube has uniform annular protrusions, and the protrusions contact the protrusions.

[0014] Preferably, a protective block is provided on the side of the pressing blocks that are close to each other, and the wire passes between the adjacent protective blocks.

[0015] Preferably, the partition is provided with spray pipes on both sides of the electrical appliance, the spray pipes are connected to the connecting pipes, the openings of the spray pipes face the electrical appliance, and a sealing film is provided at the openings of the spray pipes.

[0016] Preferably, baffles are evenly provided on one side of the sliding plate, and the baffles are located on both sides of the electrical appliance.

[0017] The beneficial effects of this invention are as follows:

[0018] 1. The present invention provides a wireless communication-based power metering box. When the monitoring sensor detects smoke or high temperature or other hazards, the electric telescopic rod drives the sliding plate to quickly slide between adjacent wiring boards via the sliding rod, triggering the first position sensor. The sliding plate, wiring board, and partition surround each row of electrical appliances, separating the electrical appliances inside the metering box and preventing smoke or flames from rising and causing the electrical appliances on the upper layer inside the outer shell to be ignited or damaged, thus expanding the scope of the hazard and improving the safety of the metering box.

[0019] 2. The energy metering box based on wireless communication described in this invention, after each row of electrical appliances is separated, a monitoring sensor detects which row of appliances is in danger and immediately controls a sliding plate to trigger a second position sensor. The sliding plate drives a pressing block to move and contact a wire pressing rod. The wire pressing rod is guided by the inclined surface of the pressing block and moves within the wiring board. The wire pressing rod drives a cutter to move within the wiring groove and approach the inner wall of the wiring groove. The cutting edge of the cutter cuts the wire, de-energizing it and simultaneously sealing the wiring groove, thus placing the burning appliance in a sealed space, isolating it from the air. Combined with the fire extinguishing device spraying extinguishing agent into this sealed space through a connecting pipe, the fire is controlled, the fire extinguishing efficiency is accelerated, and the safety of the metering box is improved. Attached Figure Description

[0020] The invention will now be further described with reference to the accompanying drawings.

[0021] Figure 1 This is a perspective view of the present invention;

[0022] Figure 2 This is a sectional view of the present invention from a side view direction;

[0023] Figure 3 yes Figure 2 A magnified view of a section at point A in the middle;

[0024] Figure 4 yes Figure 3 A diagram showing the process of checking for disconnected wires;

[0025] Figure 5 yes Figure 3 A diagram showing the connection status of the wires;

[0026] Figure 6 This is a schematic diagram of a sliding plate moving closer to an electrical appliance;

[0027] Figure 7 yes Figure 6 A sectional view taken from the front.

[0028] Figure 8 yes Figure 6 A diagram from a top-down perspective;

[0029] Figure 9 yes Figure 6 A top-view sectional view.

[0030] In the diagram: 1. Outer casing; 11. Electrical appliance; 12. Wire; 13. Box door; 14. Partition; 15. Wiring board; 16. Wiring trough; 17. Wire clamping rod; 18. Cutting knife; 19. Film; 2. Sealing plate; 2. Sliding rod; 21. Electric telescopic rod; 22. Sliding plate; 23. Pressing block; 24. Position sensor 1; 25. Position sensor 2; 26. Fire extinguishing device; 27. Connecting pipe; 28. Slide groove; 29. ​​Toothed groove; 3. Pressing block; 31. Clamping block; 32. Pressing rod; 33. Pressing piece; 34. Clamping block; 35. Pressing auxiliary rod; 36. Pushing block; 37. Cleaning belt; 38. Elastic rope; 39. Cable management trough; 4. Guide rod; 41. Guide groove; 42. Guide ring; 43. Protrusion; 44. Heat shrink tubing; 45. Protrusion; 46. Protective block; 47. Spray pipe; 48. Sealing film; 49. Baffle; 5. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] Example 1:

[0033] To effectively solve the above problems, see the attached diagram in the instruction manual. Figures 1-9As shown, a wireless communication-based power metering box includes a shell 1, electrical components 11, wires 12, a door 13, and a wireless communication unit; the wireless communication unit includes, for example, a data acquisition terminal, a wireless communication module, a sensing and control unit, and a power supply module.

[0034] Also includes:

[0035] A partition 14 is disposed inside the outer casing 1. Electrical appliances 11 are evenly arranged on one side of the partition 14. The perimeter of the partition 14 is fixed to the inner wall of the outer casing 1 by bolts. Wiring boards 15 are evenly arranged on the partition 14. Wiring grooves 16 are evenly arranged on the wiring boards 15. A wire pressing rod 17 is slidably connected to the wiring boards 15 by a spring. One end of the wire pressing rod 17 extends out of one side of the wiring boards 15 and is away from the partition 14. A cutter 18 is evenly arranged on the wire pressing rod 17. The cutter 18 slides in the wiring groove 16 and is close to the wire 12. A film 19 is disposed in the wiring groove 16. One side of the film 19 is adhered to the cutting edge of the cutter 18.

[0036] A sealing plate 2 is installed on the side of the electrical appliance 11 away from the partition 14. Sliding rods 21 are evenly distributed on the sealing plate 2, passing through and slidably connected to it. One end of each sliding rod 21 is connected to an electric telescopic rod 22 on the sealing plate 2, and the other end is fitted with a sliding plate 23. Both ends of the sliding plate 23 contact the partition 14, and the middle part contacts the wiring board 15. A pressing block 24 is provided on the sliding plate 23, and the inclined surface of the pressing block 24 contacts one end of the pressing rod 17. A first position sensor 25 and a second position sensor 26 are respectively provided on the wiring board 15, and monitoring sensors are arranged on the wiring board 15. A fire extinguishing device 27 is installed inside the outer casing 1, and a connecting pipe 28 is provided inside the partition 14. One end of the connecting pipe 28 is located between adjacent upper and lower wiring boards 15, and the other end is connected to the fire extinguishing device 27 through a valve.

[0037] The power module supplies power to the fire extinguishing components mentioned above; two wiring boards 15 are distributed between two adjacent electrical appliances 11, and the wires 12 connecting the electrical appliances 11 pass through the wiring groove 16 and are stored and organized between the two wiring boards 15; the cutter 18 is a conventional tool for cutting the live wires 12 in emergencies, and can be made of insulating ceramic material; the film 19 is made of conventional hot melt adhesive material, which can melt and cover and adhere the wires 12 when they are at high temperature or on fire; the sliding plate 23 has a C-shaped cross section, and when the wiring board 15, the sliding plate 23 and the partition 14 come into contact and merge, they form a sealed space to enclose the burning electrical appliance 11; the first position sensor 25 and the second position sensor 26 can be pressure sensors, which facilitates the electric telescopic rod 22 to control the movement position of the sliding rod 21. For example, the electric telescopic rod 22 drives the sliding plate 23 to approach the electrical appliance 11 through the sliding rod 21 until the sliding plate 23 enters between the wiring boards 15 above and below the electrical appliance 11. After contacting the wiring board 15, position sensor 25 is triggered. At this time, the inclined surface of the squeezing block 24 is close to one end of the pressure rod 17. The wiring board 15, sliding plate 23 and partition 14 enclose the electrical appliance 11 without cutting the wire 12. If the alarm is triggered by a monitoring sensor that is used to detect whether there is a danger in the metering box, the monitoring sensor is of the high temperature resistant type. The sliding plate 23 will continue to slide and contact position sensor 26. The inclined surface of the squeezing block 24 squeezes and guides the pressure rod 17 to move in the wiring board 15. The pressure rod 17 drives the cutter 18 to move in the wiring groove 16 to cut the wire 12. The fire extinguishing device 27 is a conventional fire extinguishing system built into the outdoor metering box. The fire extinguishing device 27 sprays fire extinguishing agent, such as foam fire extinguishing agent or aerosol fire extinguishing agent, to the electrical appliance 11 through the connecting pipe 28. The valve controls the opening and closing of multiple connecting pipes 28, so that the fire extinguishing device 27 sprays fire extinguisher on the electrical appliance 11 in a certain row that is on fire, while the other connecting pipes 28 are in the closed state.

[0038] Specific workflow: When installing electrical appliance 11, first fix electrical appliance 11 side by side on partition 14. Install two wiring boards 15 between adjacent electrical appliances 11. Pass the wires 12 connected to electrical appliance 11 through wiring groove 16. The wires 12 are located between the cutter 18 and the inner wall of wiring groove 16. Then, install partition 14 inside housing 1 and connect the remaining wires 12 to complete the wire connection. Next, place sealing plate 2 inside housing 1 near door 13 and align sliding plate 23 with electrical appliance 11 so that sliding plate 23 can extend between the two wiring boards 15 above and below electrical appliance 11. Then, fix sealing plate 2 to the inner wall of housing 1 with anti-theft screws and close door 13. Through the cooperation between door 13 and sealing plate 2, the lock of door 13 prevents electricity theft and other operations. Sealing plate 2 is fixed inside housing 1 with anti-theft screws. Even if it is broken, only sealing plate 2 will be damaged. It plays the role of preventing breakage and protecting electrical appliance 11, increasing the protection of metering box and thus improving the security of metering box.

[0039] In the event of an emergency, directly cutting off the input cable of the metering box could generate a strong electric arc under high voltage or high current conditions. This arc could burn internal components, or even ignite residual dust or insulation materials, expanding the scope of the fault and incurring high recovery costs. Therefore, when the monitoring sensor detects smoke or high temperatures, the electric telescopic rod 22, via the sliding rod 21, drives the sliding plate 23 to quickly slide between adjacent wiring boards 15, triggering the first position sensor 25. The sliding plate 23, wiring board 15, and partition 14 surround each row of electrical appliances 11, separating them and preventing smoke or flames from rising and igniting or damaging the upper electrical appliances 11 inside the outer casing 1, thus preventing the hazard from expanding and improving the safety of the metering box. Safety of the metering box: After each row of electrical appliances 11 is separated, the monitoring sensor detects which row of electrical appliances 11 is in danger and immediately controls the sliding plate 23 to slide and trigger the second position sensor 26. The sliding plate 23 drives the pressing block 24 to move and contact the pressure rod 17. The pressure rod 17 moves in the wiring plate 15 under the guidance of the inclined surface of the pressing block 24. The pressure rod 17 drives the cutter 18 to move in the wiring groove 16 and approach the inner wall of the wiring groove 16. The cutting edge of the cutter 18 cuts the wire 12 and cuts off the power at the same time sealing the wiring groove 16, so that the burning electrical appliance 11 is in a sealed space and isolated from the air. With the help of the fire extinguishing device 27 spraying fire extinguishing agent into this sealed space through the connecting pipe 28, the fire is controlled and the fire extinguishing efficiency is accelerated, thereby improving the safety of the metering box.

[0040] Furthermore, the causes of the fire in electrical appliance 11 include internal short circuits, short circuits at the connection points of wires 12, or overheating due to loose connections. Therefore, during the fire process of electrical appliance 11, wires 12 are also in a high-temperature or burning state. The high temperature of wires 12 melts the film 19 near wires 12, wrapping the exposed wires 12 that may be exposed due to high temperature or combustion. Before the power is cut off, the film wrapping of the energized wires 12 is added to prevent the exposed wires 12 from short-circuiting and causing the danger to expand, thereby improving the safety of the metering box. In addition, after the film 19 melts, it adheres the wires 12 and the cutter 18, so that after the cutter 18 cuts the wires 12, the wires 12 are stuck to the cutter 18 and the inner wall of the wiring channel 16. The wiring board 15 is an insulating rigid material, and the two cut ends cut by the cutter 18 are fixed in the wiring channel 16 by the melted film 19, preventing the cut wires 12 from contacting other conductive materials and causing short circuits again, improving the fire extinguishing efficiency, thereby further improving the safety of the metering box.

[0041] The cutter 18 extends from one side of the wiring trough 16 and enters the inner wall of the other side, sealing the space where the burning electrical appliance 11 is located. While controlling the fire, it collects combustion products, smoke and other impurities in this sealed space. Meanwhile, the remaining sliding plate 23, which is away from the flame, moves to the first position sensor 25. The pressing block 24 does not contact the pressure rod 17, and the cutter 18 moves away from the wire 12, so that the sliding plate 23 and the wiring plate 15 form a dust cover to block impurities from the outside, preventing the intact electrical appliance 11 from being affected. This reduces maintenance costs, speeds up maintenance, and facilitates the rescue work of maintenance personnel.

[0042] Moreover, the fire extinguishing device 27 mostly stores the flowing extinguishing agent in a tank, storing compressed extinguishing agent for easy power spraying in case of emergency. When the extinguishing agent flows through the connecting pipe 28, the temperature of the extinguishing agent is much lower than the flame temperature. When the electrical appliance 11 catches fire, it will also cause the temperature of the fire area of ​​the partition 14 to rise. Since the surrounding electrical appliances 11 are fixed on the partition 14, the temperature of the partition 14 near the fire area is reduced during the extinguishing process, avoiding the nearby electrical appliances 11 from being affected by the high temperature of the partition 14 and causing dangerous situations. This improves the protection of the electrical appliances 11 by the metering box, thereby improving the safety of the metering box.

[0043] Example 2:

[0044] Based on Embodiment 1, the wiring board 15 is uniformly provided with sliding grooves 29, and the inner wall of the sliding grooves 29 is provided with toothed grooves 3. A pressing block 31 is slidably connected in the sliding grooves 29. A spring is provided on the part of the pressing block 31 facing the inner wall of one end of the sliding groove 29. A locking block 32 is slidably connected to the pressing block 31 through the spring. One end of the locking block 32 is located above the sliding groove 29, and the other end is engaged with the toothed groove 3. A pressing rod 33 is slidably connected to the side of the pressing block 31 away from the wiring board 15 through the spring. One end of the pressing rod 33 is located at the pressing block 31. The inner wall of the pressing block 31 is inclined on one side. The inner wall of the pressing block 31 contacts the inclined surface of one end of the pressing rod 33. The other end of the pressing rod 33 is provided with a pressing piece 34. The wire 12 passes between two adjacent pressing pieces 34. A clamping block 35 is slidably connected to the pressing piece 34 by a tension spring. One end of the clamping block 35 extends out of the pressing piece 34 and is coated with a color developer. The color developer is a conventional color developing dye. There are two matching pressing blocks 31, one close to the partition 14 and the other away from the partition 14. The wire 12 passes between the two. Figure 3 Point a in the middle indicates the location where the color developer was applied;

[0045] The sliding plate 23 is provided with a pressing auxiliary rod 36, one end of which is inclined and contacts the locking block 32. A push block 37 is provided on one side of the pressing auxiliary rod 36, and the end of the push block 37 away from the sliding plate 23 contacts the pressing block 31.

[0046] The pressing block 31 is provided with a cleaning belt 38. One end of the cleaning belt 38 is fixed to the wiring board 15, and the other end is wrapped around the pressing plate 34. An elastic rope 39 is provided at the ends of adjacent pressing plates 34 that are far apart from each other. One end of the elastic rope 39 is connected to the end of the cleaning belt 38 wrapped around the pressing plate 34.

[0047] Specific workflow: Ideally, the connection of wire 12 should be a tight contact, with wire 12 directly bonded to the terminal and terminals to each other via metal surfaces, resulting in low contact resistance. Loose connections, such as from loose screws, oxide layer obstruction, or insufficient crimping of wire 12, can disrupt this tightness, leading to overheating or even fire. However, if personnel manually pull on wire 12 to check for tightness, they cannot control the pulling force. Light pulling may miss some loose connections or poor contact, while heavy pulling may pull out some wires, hindering efficient detection. Therefore, when connecting wires 12, after passing through the wiring trough 16, the wires 12 leading from the top and bottom of the appliance 11 should pass between the two pressing tabs 34. After the wires 12 are connected, personnel should check them one by one: first checking those furthest from the appliance... When the operator operates the pressing block 31 of the partition 14, the operator presses the locking block 32 into the pressing block 31. After the locking block 32 moves away from the tooth groove 3, it no longer fixes the pressing block 31 that is away from the partition 14. The pressing block 31 that is close to the partition 14 continues to be fixed by the locking block 32. The operator pushes the pressing block 31 that is away from the partition 14 to move in the slide groove 29, so that the two pressing blocks 31 drive the pressing piece 34 to move closer to each other through the pressing rod 33. After the pressing piece 34 clamps the wire 12 through the clamping block 35, the pressing blocks 31 continue to move closer to each other. The pressing piece 34 and the pressing rod 33 cannot move closer due to contact. The inclined surface at the bottom of the pressing rod 33 contacts the inclined surface of the inner wall of the pressing block 31. The pressing rod 33 slides away from the pressing block 31 due to the guiding effect of the inclined surface. The pressing rod 33 drives the pressing piece 34 to clamp and guide away from the electrical appliance 11 by a fixed distance.

[0048] During the process of the pressing plate 34 driving the wire 12 upward through the clamping block 35, the tension spring with a fixed pulling force drives the clamping block 35 to contact the wire 12 and rise. For example, if the clamping block 35 pulls the wire 12 with a force of 1 Newton, if the connection of the wire 12 is stable, the clamping block 35 will not be able to drive the wire 12 upward. The end of the clamping block 35 that extends out of the pressing block 31 will retract into the pressing plate 34, and the personnel will not be able to see the color developer. This can help the personnel judge whether the connection of the wire 12 is stable. If the connection of the wire 12 is unstable, the clamping block 35 will drive the wire 12 upward. One end of the wire 12 will move away from the electrical appliance 11, and one end of the clamping block 35 will remain in the extended state. The personnel will be able to see the color developer, which can help the personnel judge whether the connection of the wire 12 is unstable. This allows the personnel to efficiently check the connection status of the wire 12, avoid the occurrence of loose connections and overheating that could lead to fire, and thus improve the safety of the metering box.

[0049] Furthermore, the rubber outer sheath on the surface of the wire 12 provides anti-slip properties, increasing the friction between the clamping block 35 and the wire 12, thus improving the accuracy of the clamping block 35 in detecting the wire 12 and enhancing the safety of the metering box. Moreover, since the pressing block 31 slides on the wiring board 15 and is fixed by the clip 32, the connection positions of some electrical appliances 11 are inconsistent. For example, the wire 12 connection points of some electrical appliances 11 are close to the partition 14, while those of other electrical appliances 11 are far from the partition 14. By sliding the pressing block 31, it can be aligned with the connection position of the electrical appliance 11, ensuring that the wire 12 is vertical between the electrical appliance 11 and the clamping block 35. This prevents tilting or other issues when the guide is pulled, improving inspection accuracy. Considering cost, after checking the connection degree of the wire 12, personnel can remove the pressing blocks 31 around some electrical appliances 11 that do not easily generate heat, saving costs.

[0050] In the event of an emergency, the sliding plate 23 moves between adjacent wiring boards 15, causing the pressing rod 36 to move closer to the locking block 32. The inclined surface of the pressing rod 36 presses the locking block 32 into the pressing block 31. The push block 37 then contacts the pressing block 31 and pushes it until the two pressing blocks 31 are close to each other. As the pressing blocks 31 are close to each other, the cutter 18 cuts the wire 12. The pressing plate 34 moves the wire 12 away from the electrical appliance 11 while it is wrapped in the film 19, increasing the distance between the live wire 12 and the electrical appliance 11 and improving safety. In addition, the cutting and intercepting action of the cutter 18, combined with the increased distance of the cut of the wire 12, increases the arc extinguishing effect and avoids dangerous situations such as electric arcs during the cutting and pulling of the wire 12, further improving the safety of the metering box.

[0051] As the pressing blocks 31 approach each other, the distance between the pressing blocks 31 and the pressing plates 34 increases due to the rise of the pressing plates 34. The cleaning belt 38 is pulled, and one end of the cleaning belt 38 connected to the elastic rope 39 moves from the pressing plates 34. At this time, the cleaning belt 38 is located between the clamping block 35 and the wire 12. The cleaning belt 38 moves to wipe the clamping block 35 and the guide, cleaning the surfaces of both and increasing the contact effect between them, thereby improving the accuracy of the tensile test and thus improving the safety of the metering box. After the test is completed, the pressing plates 34 and the pressing blocks 31 move back to their original positions, and the cleaning belt 38 is rewound onto the pressing plates 34. Furthermore, in the event of a fire, the cutter 18 cuts the guide, and the cleaning belt 38 stands vertically on both sides of the cut wire 12, acting as a barrier to prevent the live wire 12 from swinging around and contacting other metal parts.

[0052] Example 3:

[0053] Based on Embodiment 2, the pressing pieces 34 are provided with a cable management groove 4 on the side that is close to each other. The cable management groove 4 is vertically arranged and evenly distributed. One wire 12 corresponds to one cable management groove 4 and one clamping block 35. One surface of two adjacent pressing pieces 34 is provided with a guide rod 41 and the other surface is provided with a guide groove 42. One end of the guide rod 41 faces the inside of the guide groove 42.

[0054] The pressing piece 34 is provided with a guide ring 43, and the wire 12 passes through the center of the guide ring 43;

[0055] The clamping block 35 has uniformly distributed protrusions 44 on its surface. The part of the wire 12 near the pressing piece 34 is fitted with a heat shrink tube 45. The outer circumferential surface of the heat shrink tube 45 has uniformly distributed annular protrusions 46. The protrusions 44 contact the protrusions 46.

[0056] Specific workflow: When the operator passes the wire 12 between the two pressing plates 34, firstly, a pressing block 31 is installed. The operator arranges several wires 12 one by one in the wire management groove 4 and separates them with guide rods 41. Then, another pressing block 31 is installed. The guide rod 41 on the other pressing block 31 is inserted into the guide groove 42 to further separate the wires 12. This allows a set of pressing plates 34 to press and check several wires 12 at a time, increasing the number of tests per session and thus improving inspection efficiency. In addition, the guide rods 41 can straighten the wires 12 on both sides, avoiding the influence of bent parts on the wires 12 on the inspection.

[0057] The wire 12 extends vertically from the top and bottom ends of the electrical appliance 11 and is stored horizontally between adjacent wiring boards 15. This causes the wire 12 to form a bend at the pressure plate 34. When the pressure plates 34 are close together for inspection, the bend in the wire 12 can easily be pressed. Therefore, by setting a guide ring 43, the wire 12 bends after passing through the guide ring 43, which helps the wire 12 to remain vertical from the electrical appliance 11 to the pressure plate 34, making inspection easier, improving inspection accuracy, and thus improving the safety of the metering box.

[0058] By incorporating heat shrink tubing 45, which is made of non-slip rubber, the clamping block 35 indirectly contacts the wire 12 through the heat shrink tubing 45, providing protection and guidance to prevent the wire 12 from being excessively clamped and causing damage. When the clamping block 35 approaches the heat shrink tubing 45, the clamping block 35 drives the protrusion 44 to engage with the annular protrusion 46 on the heat shrink tubing 45, improving the contact effect and thus improving the accuracy of the inspection. Furthermore, in the event of a fire, the cutter 18 cuts the wire 12 and the heat shrink tubing 45. The heat shrink tubing 45 shrinks and wraps the exposed part of the wire 12 when heated, which, together with the wrapping effect of the film 19, strengthens the protection of the wire 12 after it is cut, thereby improving safety and preventing danger to personnel during maintenance.

[0059] Example 4:

[0060] Based on Embodiment 3, a protective block 47 is provided on one side of the pressing blocks 31 that are close to each other, and the wire 12 passes through the space between the adjacent protective blocks 47;

[0061] The partition 14 is provided with spray pipes 48 on both sides of the electrical appliance 11. The spray pipes 48 are connected to the connecting pipe 28. The opening of the spray pipes 48 faces the electrical appliance 11. A sealing membrane 49 is provided at the opening of the spray pipes 48.

[0062] The sliding plate 23 is provided with baffles 5 evenly on one side, and the baffles 5 are located on both sides of the electrical appliance 11;

[0063] Specific workflow: By setting up protective blocks 47, which can be made of flame-retardant sponge or the like, in the event of a fire, the wire 12 is cut off as the pressing blocks 31 move closer together. After the guide is cut off, it may swing. As the pressing blocks 31 move closer together, the guide protective blocks 47 move closer together to clamp and wrap the broken end of the guide. The melted film 19 and heat shrink tubing 45 at the broken end of the wire 12 gradually cool down in the environment wrapped by the protective blocks 47, forming a hard protective shell. This prevents the wrapping materials at the broken end of the wire 12 from melting and dripping due to high temperature, thereby improving the safety of the metering box.

[0064] By setting up the spray pipe 48, in the event of a small-scale fire, the burning electrical appliance 11 will melt the sealing film 49 on both sides of the spray pipe 48 due to the high temperature. The sealing film 49 is made of heat-melting material. The unburned electrical appliances 11 in the same row will not melt the sealing film 49 because they are far away from the high temperature point. When the fire extinguishing device 27 sprays the fire extinguishing agent into the spray pipe 48 through the connecting pipe 28, the spray pipe 48 closer to the fire source is in the open state, while the spray pipe 48 farther away from the fire source is in the closed state. This allows the spray pipe 48 closer to the fire source to spray the fire extinguishing agent, while the spray pipe 48 farther away from the fire source does not spray the fire extinguishing agent. This reduces the coverage and impact of the fire extinguishing agent on the electrical appliance 11, reduces maintenance costs, and improves the accuracy of fire extinguishing, thereby improving fire extinguishing efficiency.

[0065] By setting up baffle 5, when the sliding plate 23 approaches the electrical appliance 11, the baffle 5 is located between adjacent electrical appliances 11, so that the combination of the two baffles 5 can seal off a single electrical appliance 11 and the spray pipe 48, further reducing the fire source combustion range and improving safety; in addition, the baffle 5 can prevent the spray pipe 48 from spraying extinguishing agent onto the intact electrical appliance 11, so that the spray pipe 48 sprays only within the range of the reduced burning electrical appliance 11, further avoiding the impact of the extinguishing agent on the remaining electrical appliances 11, thereby reducing maintenance costs.

[0066] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A power metering box based on wireless communication, comprising a shell (1), electrical components (11), wires (12), a door (13), and a wireless communication unit; characterized in that, Also includes: A partition (14) is provided inside the outer casing (1). Electrical appliances (11) are evenly arranged on one side of the partition (14). Wiring boards (15) are evenly provided on the partition (14). Wiring grooves (16) are evenly provided on the wiring boards (15). A wire pressing rod (17) is slidably connected to the wiring board (15) by a spring. One end of the wire pressing rod (17) extends out of the wiring board (15). A cutter (18) is provided on the wire pressing rod (17). The cutter (18) slides in the wiring groove (16). A film (19) is provided in the wiring groove (16). One side of the film (19) is adhered to the cutting edge of the cutter (18). A closed plate (2) is installed inside the outer shell (1). A sliding rod (21) is provided on the closed plate (2), and the sliding rod (21) passes through the closed plate (2). One end of the sliding rod (21) is connected to the electric telescopic rod (22) on the closed plate (2), and the other end is equipped with a sliding plate (23). A pressing block (24) is provided on the sliding plate (23), and the inclined surface of the pressing block (24) contacts one end of the pressure rod (17). A first position sensor (25) and a second position sensor (26) are respectively provided on the wiring board (15), and a monitoring sensor is arranged on the wiring board (15). A fire extinguishing device (27) is installed inside the outer shell (1), and a connecting pipe (28) is provided inside the partition (14). One end of the connecting pipe (28) is located between the upper and lower adjacent wiring boards (15), and the other end is connected to the fire extinguishing device (27) through a valve. The wiring board (15) is evenly provided with sliding grooves (29), and the inner wall of the sliding grooves (29) is provided with toothed grooves (3). A pressing block (31) is slidably connected in the sliding grooves (29). A spring is provided on the part of the pressing block (31) facing the inner wall of one end of the sliding groove (29). A locking block (32) is slidably connected to the pressing block (31) through the spring. One end of the locking block (32) is located above the sliding groove (29), and the other end is engaged with the toothed groove (3). The side of the pressing block (31) away from the wiring board (15) is open. A pressing rod (33) is slidably connected by a spring. One end of the pressing rod (33) is located inside the pressing block (31) and one side is inclined. The inner wall of the pressing block (31) contacts the inclined surface of one end of the pressing rod (33). The other end of the pressing rod (33) is provided with a pressing piece (34). The wire (12) passes between two adjacent pressing pieces (34). A clamping block (35) is slidably connected to the pressing piece (34) by a tension spring. One end of the clamping block (35) extends out of the pressing piece (34) and is coated with a color developer.

2. The energy metering box based on wireless communication according to claim 1, characterized in that: The sliding plate (23) is provided with a pressing rod (36), and one end of the pressing rod (36) is inclined and contacts the locking block (32). A push block (37) is provided on one side of the pressing rod (36), and the end of the push block (37) away from the sliding plate (23) contacts the pressing block (31).

3. The energy metering box based on wireless communication according to claim 2, characterized in that: The pressing block (31) is provided with a cleaning belt (38), one end of which is fixed to the wiring board (15) and the other end is wrapped around the pressing piece (34). The ends of the adjacent pressing pieces (34) that are far apart from each other are provided with elastic ropes (39), one end of which is connected to the end of the cleaning belt (38) wrapped around the pressing piece (34).

4. The energy metering box based on wireless communication according to claim 3, characterized in that: The pressing pieces (34) are provided with cable management grooves (4) on the side that are close to each other. The cable management grooves (4) are vertically arranged and evenly distributed. One wire (12) corresponds to one cable management groove (4) and one clamping block (35). One surface of two adjacent pressing pieces (34) is provided with a guide rod (41) and the other surface is provided with a guide groove (42). One end of the guide rod (41) faces the inside of the guide groove (42).

5. A power metering box based on wireless communication according to claim 4, characterized in that: The pressing piece (34) is provided with a guide ring (43), and the wire (12) passes through the center of the guide ring (43).

6. A power metering box based on wireless communication according to claim 5, characterized in that: The clamping block (35) has uniformly distributed protrusions (44) on its surface. The part of the wire (12) near the pressing piece (34) is fitted with a heat shrink tube (45). The outer circumferential surface of the heat shrink tube (45) has uniform annular protrusions (46). The protrusions (44) contact the annular protrusions (46).

7. The energy metering box based on wireless communication according to claim 1, characterized in that: The pressing blocks (31) are provided with protective blocks (47) on the side that are close to each other, and the wire (12) passes between the adjacent protective blocks (47).

8. The energy metering box based on wireless communication according to claim 1, characterized in that: The partition (14) is provided with a spray pipe (48) on both sides of the electrical appliance (11). The spray pipe (48) is connected to the connecting pipe (28). The opening of the spray pipe (48) faces the electrical appliance (11). A sealing membrane (49) is provided at the opening of the spray pipe (48).

9. A power metering box based on wireless communication according to claim 8, characterized in that: The sliding plate (23) is uniformly provided with baffles (5) on one side, and the baffles (5) are located on both sides of the electrical appliance (11).

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