Double-sided protective three-phase multi-meter-position metering box

Abstract

The invention discloses a double-sided protective three-phase multi-meter-position metering box, and relates to the technical field of electric meter boxes, the double-sided protective three-phase multi-meter-position metering box comprises a box body, the upper end of the interior of the box body is provided with a splice plate, the two sides of the interior of the box body are each provided with a mounting rack, electrical state early warning can be preset by operating an electric control box, and three threshold values are set; the threshold values are respectively an early warning threshold value, an intervention threshold value and an emergency threshold value, current and voltage of different threshold values are set through the electric control box, when the box body is used, the current and voltage at the input port can be monitored in real time through internal components of the electric protection mechanism, and when the current and voltage at the input port are abnormal, the current and voltage at the input port can be monitored in real time. According to the utility model, multi-layer monitoring protection can be carried out on the ammeter main body and elements, grading protection can be carried out on the ammeter main body and elements in the box body to the greatest extent, the possibility that the ammeter main body and elements are damaged due to abnormal current and voltage is reduced, and the safety of the metering box is improved.

Description

Technical Field

[0001] The present application relates to the technical field of electric meter boxes, and in particular to a double-sided protective three-phase multi-meter meter box. Background Art

[0002] A meter box, also known as an electric meter box, is a specialized enclosure used to house electric energy meters and related electrical components. Its primary function is to centrally manage electric energy metering equipment, protecting components like meters, switches, and fuses from environmental influences (such as wind, rain, dust, and collisions). It also standardizes circuit connections, facilitating the metering, monitoring, and management of user electricity usage by power companies, ensuring the accuracy and security of electricity metering.

[0003] The installation of a three-phase meter inside the meter box must strictly adhere to electrical specifications. It's typically secured to a dedicated mounting bracket within the box, with incoming and outgoing wires connected via copper busbars or cables. Ensure the wiring is secure and the phases are correct. During operation, a three-phase meter accurately measures the energy consumed by three-phase devices by detecting the voltage and current in the three-phase circuit. The readings serve as the basis for electricity billing by the utility company and also provide a reference for users to understand their own electricity usage.

[0004] When the existing meter box is running for a long time, the current input end may sometimes be affected by the fluctuation of the external power grid, causing the input current and voltage to be abnormal. If it is not processed, the excessive current and voltage may easily cause damage to the electrical components inside the box, seriously affecting the normal operation and power safety of the meter box. Summary of the Invention

[0005] The purpose of the present application is to solve the problem in the above-mentioned background technology that when the meter box is running for a long time, the current input end is sometimes affected by the fluctuation of the external power grid, which makes the input current and voltage abnormal. If it is not processed, the excessive current and voltage will easily cause damage to the electrical components inside the box, and in serious cases affect the normal operation and electricity safety of the meter box. The present application provides a double-sided protective three-phase multi-meter meter box.

[0006] In order to achieve the above-mentioned purpose, this application specifically adopts the following technical solutions: A double-sided protective three-phase multi-meter meter box, comprising a box body, a splicing plate installed on the upper end of the interior of the box body, and mounting brackets installed on both sides of the interior of the box body, a plurality of mounting plates installed on the mounting brackets, a plurality of meter bodies fixedly connected to the mounting plates, a connecting conductor group installed at one end of the meter body, a fixing bracket installed on the inner bottom of the box body, a box door 1 is rotatably connected to one side of the box body, and a box door 2 is rotatably connected to the other side of the box body, a plurality of flip-type operating ports are installed on the box door 1, and a plurality of flip-type operating ports are installed on the box door 2. A covered observation window, multiple ventilation structures are fixedly connected on both sides of the box, an input port is installed at one end of the inner bottom of the box, and an output port is installed at the other end of the inner bottom of the box, the input port and the output port are both connected to the meter body, an electric control box is installed in the middle of the inner bottom of the box, an electrical protection mechanism is installed inside the box, a temperature and humidity sensor is installed on the mounting frame, and a detachable heat dissipation mechanism is installed on both sides of the interior of the box, and the electric control box is electrically connected to the temperature and humidity sensor, the electrical protection mechanism and the heat dissipation mechanism.

[0007] By adopting the above technical solution, the electrical status warning can be pre-set by operating the electrical control box, and set into three thresholds, namely the warning threshold, the intervention threshold and the emergency threshold. The current and voltage of different thresholds can be set through the electrical control box. When the box is in use, the current and voltage at the input port can be monitored in real time through the internal components of the electrical protection mechanism. When the current and voltage at the input port are abnormal, and the abnormal current and voltage interval is within the setting range of the warning threshold, part of the current on the input port is guided through the internal components of the electrical protection mechanism to reduce the current flow of the abnormal input port, and at the same time, an alarm is issued to the background. When the abnormal current and voltage are within the intervention threshold, the current and voltage are doubly alleviated through the internal components of the electrical protection mechanism. If the current and voltage still have not recovered, the input port is delayed tripped. When the emergency threshold is reached, the electrical protection mechanism can be controlled to trip directly, so that the meter body and components can be monitored and protected at multiple levels, and the meter body and components inside the box can be protected at the highest level, reducing the possibility of damage to the meter body and components due to abnormal current and voltage, thereby improving the safety of the meter box.

[0008] Furthermore, the flip-type operating port includes a connecting box fixedly connected to the box door, a connecting window is provided on one side of the interior of the connecting box, and a closing cover is rotatably connected to the top side of the connecting box, and the connecting window corresponds to the meter body.

[0009] By adopting the above technical solution, the position of the communication window corresponds to the position of the electric meter body. When the box door and the box body are closed, the operating end of the electric meter body is inserted into the communication window.

[0010] Furthermore, the flip-type observation window includes an observation window fixedly connected to the second box door, and the second box door is rotatably connected to a second closing cover, and the second closing cover is located on the outside of the observation window.

[0011] By adopting the above technical solution, the observation window is a transparent plastic plate, which makes it convenient for people to visually view the electrical components inside the box through the observation window.

[0012] Furthermore, the ventilation structure includes a ventilation grille 1 fixedly connected to one side of the box body, a dustproof net is fixedly connected to the interior of the ventilation grille 1, and one end of the ventilation grille 1 is fixedly connected to the ventilation grille 2.

[0013] By adopting the above technical solution, the flow openings of the ventilation grille 1 and the ventilation grille 2 are both inclined downward, and the dustproof net can block dust in the air.

[0014] Furthermore, the heat dissipation mechanism includes a wind box that is detachably mounted on one side of the interior of the box, the upper and lower ends of the wind box are fixedly connected to exhaust boxes, and a plurality of exhaust fans are fixedly connected to the wind box, and a plurality of heating plates are fixedly connected to the wind box, and the exhaust fans correspond to the heating plates.

[0015] By adopting the above technical solution, external air can be drawn into the box through the operation of multiple exhaust fans, thereby improving ventilation efficiency.

[0016] Furthermore, a detachable mounting base is installed on the upper end of one side of the interior of the box body, and a plurality of exhaust fans are fixedly connected to the mounting base.

[0017] By adopting the above technical solution, the air inside the box can be discharged through multiple exhaust fans, which can cooperate with the exhaust fan to accelerate the circulation of air.

[0018] Furthermore, a semiconductor refrigeration plate is fixedly connected to one side of the interior of the exhaust box, and an air guide slope is provided on the exhaust box.

[0019] By adopting the above technical solution, the temperature inside the exhaust box is cooled by the semiconductor refrigeration sheet.

[0020] Furthermore, the electrical protection mechanism includes a protection box fixedly connected to one side of the input port, a load diverter is installed on the input port, a circuit breaker is fixedly connected to one side of the bottom of the fixing frame, the circuit breaker is connected to the input port, an optical fiber temperature sensor is installed on the input port, and a voltage and current sensor is installed on one side of the input port.

[0021] By adopting the above technical solution, a voltage stabilizer and a surge protector are provided inside the protection box. The voltage stabilizer can suppress abnormal voltage, while the surge protector can divert abnormal current.

[0022] Furthermore, the load shunt component includes a shunt installed on the input port, and one end of the shunt is fixedly connected to a plurality of idle conductors.

[0023] By adopting the above technical solution, the current at the input port is shunted and transmitted to the idle conductor through the shunt, and the current is shunted through the idle conductor.

[0024] Furthermore, the electric control box is internally provided with a signal transmission module, an alarm module, a timing module, a central processing module and a control module.

[0025] By adopting the above technical solution, the signal transmission module inside the electric control box can transmit monitoring data to the remote background in real time, and at the same time receive and summarize the monitoring data of the temperature and humidity sensors and electrical protection mechanisms.

[0026] In summary, the present application includes at least one of the following beneficial effects: 1. In the present application, the electrical status warning can be pre-set by operating the electrical control box, and set into three thresholds, namely the warning threshold, the intervention threshold and the emergency threshold, and the current and voltage of different thresholds can be set through the electrical control box. When the box is in use, the current and voltage at the input port can be monitored in real time through the internal components of the electrical protection mechanism. When the current and voltage at the input port are abnormal, and the abnormal current and voltage interval is within the warning threshold setting range, part of the current on the input port is guided through the internal components of the electrical protection mechanism to reduce the current flow of the abnormal input port, and at the same time, an alarm is issued to the background. When the abnormal current and voltage are within the intervention threshold, the current and voltage are doubly alleviated through the internal components of the electrical protection mechanism. If the current and voltage still have not recovered, the input port is delayed tripped. When the emergency threshold is reached, the electrical protection mechanism can be controlled to trip directly, so that the meter body and components can be monitored and protected at multiple levels, and the meter body and components inside the box can be protected at the highest level, reducing the possibility of damage to the meter body and components due to abnormal current and voltage, thereby improving the safety of the meter box.

[0027] 2. In the present application, when the meter box is in use, the heat dissipation mechanism is operated to draw external air into the box from the ventilation structure, thereby accelerating the air circulation inside the box, thereby improving the cooling efficiency of the electric meter body and components inside the box, thereby providing cooling protection therefor. During this period, the temperature and humidity inside the box are monitored in real time by temperature and humidity sensors. When the temperature and humidity inside the box change, the heat dissipation mechanism can be driven by the electrical control box to generate cold air or hot air and enhance the power output, thereby quickly cooling or dehumidifying the electric meter body and components, thereby enabling the meter box to control the heat dissipation mechanism in real time according to the changes in internal temperature and humidity, and then adjust the temperature and humidity inside the box in real time, thereby protecting the electrical components inside the box to the greatest extent, reducing the possibility of damage to the electrical components due to excessive temperature or moisture, and improving the safety of the meter box.

[0028] 3. In this application, when the electrical protection mechanism is protecting the electrical components inside the box from abnormal electrical conditions, when the abnormal current and voltage interval is within the warning threshold setting range, the heat dissipation mechanism can be controlled by the electric control box, so that the heat dissipation mechanism cools the input port and the internal components of the box, and cooperates with the internal components of the electrical protection mechanism to guide part of the current on the input port, coordinates the current and voltage within the warning threshold range, and avoids minor abnormalities from being upgraded to faults. When the abnormal current and voltage are within the intervention threshold, the power of the heat dissipation mechanism can be increased to the maximum through the electric control box, and the current and voltage can be doubly alleviated through the electrical protection mechanism. If the current and voltage still have not recovered, the electrical protection mechanism is controlled to delay tripping, so as to maximize the The internal components are cooled to extend the power supply stability. When the emergency threshold is reached, the electrical protection mechanism can be controlled to trip directly, and the heat dissipation mechanism can be controlled to run continuously for a period of time to cool down, so that the heat dissipation mechanism cooperates with the electrical protection mechanism to jointly protect the meter body and components, and protect the internal components of the box to the maximum extent under abnormal electrical conditions, thereby reducing damage to internal components. The meter box can carry out electrical status early warning → active intervention in heat dissipation → coordinated execution of protection levels, which can avoid the lag of a single protection action and reduce unnecessary power outages. For example, in the event of minor abnormalities, power supply is maintained through heat dissipation, thereby maximizing the safety and power supply reliability of the meter box. At the same time, heat dissipation can reduce the risk of component burning after tripping in the event of severe overcurrent.

[0029] 4. In the present application, the meter box adopts a double-sided layout, with the operation module and the display module arranged on both sides of the box body, the operation and display are separated, and box door 1 and box door 2 are respectively provided on both sides. Box door 2 is provided with a flip-up observation window, which corresponds to the component group installed inside the box body, and box door 1 is provided with a flip-up operation port, which is provided at the display control of the meter body, so that people can operate the meter body and check some components without opening the meter box, which greatly reduces the risk of electric shock and improves the safety of people's operation. At the same time, the double-sided layout of the meter body allows people to quickly locate the fault point through the flip-up operation ports and flip-up observation windows on both sides when they perform abnormal electrical maintenance, which facilitates people to quickly find the damaged part and greatly improves people's maintenance efficiency. At the same time, the combination of the double-sided layout and the hierarchical protection mechanism of the electrical protection mechanism forms a three-dimensional design of remote monitoring → local operation → comprehensive protection, which comprehensively improves the safety of the meter box. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the three-dimensional structure of this application; Figure 2 It is a schematic diagram of the expanded structure of this application; Figure 3 It is a schematic diagram of the partial structure of this application; Figure 4 This is a schematic diagram of the installation structure of the flip-type operating port in this application; Figure 5 This is a schematic diagram of the installation structure of the flip-type observation window in this application; Figure 6 It is a structural diagram of the ventilation structure in this application; Figure 7 It is a structural diagram of the heat dissipation mechanism in this application; Figure 8 It is a partial structural diagram of the heat dissipation mechanism in this application; Figure 9 This is a schematic diagram of the installation structure of the electrical protection mechanism in this application; Figure 10 This is the internal electrical connection diagram of the electric control box in this application.

[0031] Description of reference numerals: 1. Box body; 2. Box door 1; 3. Box door 2; 4. Ventilation structure; 5. Electric control box; 6. Temperature and humidity sensor; 7. Electrical protection mechanism; 8. Heat dissipation mechanism; 9. Input port; 10. Output port; 11. Splicing plate; 12. Mounting plate; 13. Mounting bracket; 14. Fixing bracket; 15. Meter body; 16. Connecting conductor group; 21. Flip-top operation port; 211. Connection box; 212. Connecting window; 213. Sealing Closed cover 1; 31. Observation window; 32. Closed cover 2; 41. Ventilation grille 1; 42. Dust screen; 43. Ventilation grille 2; 71. Protective box; 72. Diverter; 73. Idle conductor; 74. Voltage and current sensor; 75. Circuit breaker; 76. Fiber optic temperature sensor; 81. Air box; 82. Exhaust fan; 83. Heating plate; 84. Exhaust box; 85. Semiconductor cooling plate; 86. Mounting base; 87. Exhaust fan. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1 —10 provides further details of this application.

[0033] The embodiment of the present application discloses a double-sided protective three-phase multi-meter meter box.

[0034] Reference Figures 1 to 3A double-sided protective three-phase multi-meter metering box includes a box body 1, a splicing plate 11 is installed on the upper end of the interior of the box body 1, and mounting brackets 13 are installed on both sides of the interior of the box body 1, multiple mounting plates 12 are installed on the mounting bracket 13, multiple meter bodies 15 are fixedly connected to the mounting plate 12, and a connecting conductor group 16 is installed at one end of the meter body 15. A fixing bracket 14 is installed at the bottom of the inner side of the box body 1. Here, the splicing plate 11, the mounting plate 12, the mounting bracket 13 and the fixing bracket 14 are all connected to the box body 1 by bolts. People can install them according to the installation conditions of the meter body 15 and the components inside the box body 1, so that people can install the meter body 15 and the components. One side of the box body 1 is rotatably connected to the box door 2, and the other side of the box body 1 is rotatably connected to the box door 2. The side is rotatably connected with the box door 2 3, and a sealing gasket is provided on the side of the box door 1 to enhance the sealing between the box door 1 2 and the box door 2 3 and the box body 1. A plurality of flip-type operating ports 21 are installed on the box door 1 2, and a plurality of flip-type observation windows are installed on the box door 2 3. The box body 1 is a double-sided design, and the flip-type operating port 21 corresponds to the meter body 15, and the flip-type observation window corresponds to the wiring end of the connecting conductor group 16. People can operate the meter body 15 by opening the flip-type operating port 21, and view the wiring end and components of the connecting conductor group 16 through the flip-type observation window, so that the inside of the box body 1 can be viewed and operated without opening the box. A plurality of ventilation structures 4 are fixedly connected to both sides of the box body 1. An input port 9 is installed at one end of the inner bottom, and an output port 10 is installed at the other end of the inner bottom of the box body 1. The input port 9 and the output port 10 are both connected to the meter body 15. External power can be input into the meter body 15 through the input port 9, and power is sent to the user unit through the output port 10. During this period, the power flow is measured by the meter body 15. An electric control box 5 is installed in the middle of the inner bottom of the box body 1. The electric control box 5 is fixedly connected to the box body 1 by bolts. An electrical protection mechanism 7 is installed inside the box body 1, and a temperature and humidity sensor 6 is installed on the mounting frame 13. Removable heat dissipation mechanisms 8 are installed on both sides of the interior of the box body 1. The electric control box 5 is electrically connected to the temperature and humidity sensor 6, the electrical protection mechanism 7 and the heat dissipation mechanism 8. The exhaust end of the structure 8 corresponds to the ventilation structure 4, and the heat dissipation mechanism 8 is operated to extract external air from the ventilation structure 4 and pump the air into the box body 1 to achieve ventilation and cooling effects. When the air is extracted, the ventilation structure 4 is used to block dust in the air. In addition, the electrical protection mechanism 7 and the heat dissipation mechanism 8 are controlled by the electrical control box 5, so that the electrical protection mechanism 7 and the heat dissipation mechanism 8 can realize the linkage protection of the electric meter body 15 and components inside the box body 1, and realize the coordination of electrical status early warning → active intervention in heat dissipation → protection hierarchical execution, so as to maximize the protection of the electrical components inside the box body 1. In addition, before using the metering box, the electrical control box 5 can be set first, and the electrical status early warning can be pre-set to three thresholds.They are respectively the warning threshold, intervention threshold, and emergency threshold, and the current and voltage values ​​of different thresholds are set by the electric control box 5. Here, the electric control box 5, temperature and humidity sensor 6, electrical protection mechanism 7, and heat dissipation mechanism 8 are equipped with independent power supplies. They can be charged by current transmission on a daily basis. When tripping, the independent power supply can support the normal operation of the electric control box 5, temperature and humidity sensor 6, electrical protection mechanism 7, and heat dissipation mechanism 8.

[0035] When using the meter box, the splicing plate 11, the mounting plate 12, the mounting frame 13 and the fixing frame 14 can be assembled first, and fixed in the box body 1 by bolts, and then multiple meter bodies 15 can be installed on the mounting plate 12, and multiple connecting conductor groups 16 can be connected with the meter bodies 15, and the connecting conductor groups 16 can be arranged inside the box body 1 for fixing. After that, the electrical protection mechanism 7 can be installed at the input port 9, and the electrical control box 5 can be installed on the inner bottom of the box body 1 by bolts, and the meter box can be assembled and used. During use, external air can enter the box body 1 through the ventilation structure 4, so that air circulation inside the box body 1 can be realized, and the electrical components inside the box body 1 can be ventilated and cooled daily.

[0036] Before use, the electric control box 5 can be set up first, and the electrical status warning can be pre-set to be three-stage threshold value, namely the warning threshold value, the intervention threshold value and the emergency threshold value. The current and voltage of different threshold values ​​can be set through the electric control box 5. When the meter box is in operation, the external electricity can be input into the box body 1 through the input port 9 and flow through the meter body 15. The power flow is measured by the meter body 15. After that, the electricity is transmitted to the external user end through the output port 10, thereby realizing the power flow metering operation. In operation, through the operation of the heat dissipation mechanism 8, the internal components of the heat dissipation mechanism dissipate the external air. It is pumped into the box 1 through the ventilation structure 4, thereby accelerating the circulation of air inside the box 1, thereby improving the heat dissipation efficiency of the internal components. During this period, the internal temperature of the box 1 is monitored in real time by the temperature and humidity sensor 6. When the internal temperature or humidity of the box 1 reaches a preset value, the heat dissipation mechanism 8 can be controlled by the electric control box 5, so that the heat dissipation mechanism 8 releases cold air or hot air to cool or dehumidify the inside of the box 1, and accelerates the discharge of air inside the box 1 through the internal structure, thereby improving the cooling or dehumidification efficiency, thereby realizing real-time adjustment of the temperature and humidity environment inside the box 1, thereby protecting the internal components.

[0037] In addition, during power transmission, the current and voltage input to the input port 9 can be monitored in real time through the internal components of the electrical protection mechanism 7. When the current and voltage at the input port 9 are abnormal, and the current and voltage abnormal interval is within the warning threshold setting range, part of the current on the input port 9 is guided through the internal components of the electrical protection mechanism 7 to reduce the current flow of the abnormal input port 9, and at the same time, an alarm is issued to the background. When the abnormal current and voltage are within the intervention threshold, the current and voltage are doubly alleviated through the internal components of the electrical protection mechanism 7. If the current and voltage have not recovered, the input port 9 is delayed and tripped. When the emergency threshold is reached, the electrical protection mechanism 7 can be controlled to trip directly, so that the meter box can be protected in stages according to different electrical abnormal conditions, and the meter body 15 and components can be monitored and protected in multiple layers, which significantly improves the flexibility and reliability of protection, avoids the hysteresis and false operation of traditional single threshold protection, reduces the possibility of damage to the meter body 15 and components due to abnormal current and voltage, and improves the safety of the meter box.

[0038] When an electrical abnormality occurs at the input port 9, the electric control box 5 controls the electrical protection mechanism 7 while also controlling the heat dissipation mechanism 8. When the abnormal current and voltage interval is within the warning threshold setting range, the electric control box 5 can control the heat dissipation mechanism 8 so that the heat dissipation mechanism 8 cools the input port 9 and the internal components in the box, and cooperates with the internal components of the electrical protection mechanism 7 to guide part of the current on the input port 9, coordinates the current and voltage within the warning threshold range, and avoids minor abnormalities from being upgraded to faults. If it is within the intervention threshold, the power of the heat dissipation mechanism 8 can be increased to the maximum through the electric control box 5, and the current and voltage can be doubly alleviated through the electrical protection mechanism 7. If the current and voltage still have not recovered, The electrical protection mechanism 7 is controlled to delay tripping, so as to cool the internal components to the greatest extent, thereby extending the power supply stability. When the emergency threshold is reached, the electrical protection mechanism 7 can be controlled to trip directly, and the heat dissipation mechanism 8 can be controlled to continue to operate for a period of time to cool down, so as to avoid component burning. The heat dissipation mechanism 8 is then combined with the electrical protection mechanism 7 to form a dynamic linkage of monitoring and protection. At the early warning threshold, heat dissipation is actively started, and the fault development is delayed by lowering the component temperature. The heat dissipation power gradually increases with the increase of the abnormality level, forming a gradient response with the protection measures of the electrical protection mechanism 7, effectively reducing unnecessary power outages. At the same time, in the case of severe overcurrent, the risk of component burning after tripping is reduced by heat dissipation, thereby improving the safety and power supply reliability of the meter box.

[0039] At the same time, the meter box adopts a double-sided layout, with the operation module and the display module arranged on both sides of the box body 1, the operation and display are separated, and box door 1 2 and box door 2 3 are respectively provided on both sides. Box door 2 3 is provided with a flip-up observation window, corresponding to the component group installed inside the box body 1, and box door 1 2 is provided with a flip-up operation port 21, which is set at the display control of the meter body 15, so that people can operate the meter body 15 and check some components without opening the meter box, which greatly reduces the risk of electric shock, improves the safety of people's operation, and improves the maintenance efficiency. In addition, the combination of the double-sided layout and the hierarchical protection mechanism of the electrical protection mechanism 7 forms a three-dimensional design of remote monitoring → local operation → comprehensive protection, which comprehensively improves the safety of the meter box.

[0040] Reference Figures 4 to 6 The flip-type operating port 21 includes a connection box 211 fixedly connected to the box door 1 2, and a connecting window 212 is provided on one side of the interior of the connection box 211. Here, the position of the connecting window 212 corresponds to the position of the meter body 15. When the box door 1 2 and the box body 1 are closed, the operating end of the meter body 15 is inserted into the connecting window 212, and the top side of the connection box 211 is rotatably connected to the closing cover 1 213. The connecting window 212 corresponds to the meter body 15. The flip-type observation window includes an observation window 31 fixedly connected to the box door 2 3, and the box door 2 3 is rotatably connected to the closing cover 2 32. The closing cover 2 32 is located on the outside of the observation window 31. Here, a plurality of mounting slots are provided on the box door 2 3. The observation window 3 1 is installed inside the mounting groove so that the observation window 31 and the box door 2 3 are fixed as a whole, and the two are sealed to prevent external dust and water from entering the box body 1. The observation window 31 is a transparent plastic plate, which is convenient for people to intuitively view the electrical components inside the box body 1 through the observation window 31. The ventilation structure 4 includes a ventilation grille 1 41 fixedly connected to one side of the box body 1, and the interior of the ventilation grille 1 41 is fixedly connected to a dustproof net 42, and one end of the ventilation grille 1 41 is fixedly connected to a ventilation grille 2 43. Here, the ventilation structure 4 consists of a three-layer structure of the ventilation grille 1 41, the dustproof net 42 and the ventilation grille 2 43, which ensures basic ventilation and heat dissipation requirements while significantly improving the waterproof, insect-proof and dust-proof effects.

[0041] When operating the electric meter body 15 inside the box body 1, the closing cover 1 213 can be manually rotated to make the closing cover 1 213 rotate open, so as to facilitate people to operate the electric meter body 15 in the connecting window 212. At the same time, by manually rotating the closing cover 2 32, the flip-type observation window can be opened, and the internal components and circuits of the box body 1 can be viewed through the observation window 31. Air circulation can be achieved through the ventilation grille 1 41 and the ventilation grille 2 43, and the flow openings of the ventilation grille 1 41 and the ventilation grille 2 43 are both inclined downward, and the dustproof net 42 can block dust in the air, ensuring basic ventilation and heat dissipation requirements while significantly improving the waterproof, insect-proof and dustproof effects.

[0042] Reference Figure 7 and Figure 8 The heat dissipation mechanism 8 includes an air box 81 detachably mounted on one side of the interior of the box body 1. The upper and lower ends of the air box 81 are fixedly connected to exhaust boxes 84, and a plurality of exhaust fans 82 are fixedly connected to the air box 81. A plurality of heating plates 83 are fixedly connected to the air box 81. The exhaust fans 82 correspond to the heating plates 83. The external air can be drawn into the box body 1 through the ventilation structure 4 through the exhaust fans 82, which can speed up the air circulation efficiency inside the box body 1, thereby performing heat dissipation treatment on the electrical components inside the box body 1. When the interior of the box body 1 is dehumidified, heat can be generated by the operation of the heating plates 83, so that the wind blown into the interior of the box body 1 by the exhaust fans 82 forms hot wind, which can dehumidify the interior of the box body 1. A detachable mounting seat 86 is installed on the upper end of one side of the interior of the box body 1. A plurality of exhaust fans 87 are fixedly connected to the mounting seat 86. The box body can be The air inside the box 1 is discharged, and the exhaust fan 82 is used to accelerate the circulation of air. At the same time, the humid air inside the box 1 can be discharged to accelerate the dehumidification efficiency. The mounting base 86 can be installed on the inner wall of the box 1 by bolts. A semiconductor refrigeration plate 85 is fixedly connected to one side of the interior of the exhaust box 84. The exhaust box 84 is provided with an air guide slope. Here, the cold end of the semiconductor refrigeration plate 85 is located inside the exhaust box 84, and the hot end of the semiconductor refrigeration plate 85 corresponds to the ventilation structure 4. The hot air generated by the hot end can be discharged from the ventilation structure 4, and the interior of the exhaust box 84 can be cooled through the cold end of the semiconductor refrigeration plate 85. The exhaust box 84 is provided with a water guide groove inside, which can guide and block the water generated by the semiconductor refrigeration plate 85 during cooling to prevent it from falling on the electrical components inside the box 1. The air guide slope can concentrate the wind force to blow it to the electrical components.

[0043] Before using the meter box, the heat dissipation mechanism 8 can be pre-set through the electrical control box 5, and the temperature and humidity values ​​for the opening of the heat dissipation mechanism 8 can be set. Through the operation of multiple exhaust fans 82, the exhaust fans 82 draw external air from the ventilation structure 4 into the box body 1, and the air inside the box body 1 is discharged through multiple exhaust fans 87, which can speed up the air circulation inside the box body 1 and thus improve the heat dissipation efficiency. When the temperature reaches the set range, the semiconductor refrigeration plate 85 can be operated to make the semiconductor refrigeration plate 85 quickly cool down the inside of the exhaust box 84, and then cooperate with the exhaust fans 82 at both ends to blow cold air toward the inside of the box body 1, further improving the cooling effect, slowing down the temperature rise of the internal electrical components, and reducing the phenomenon of damage caused by excessive temperature rise. The exhaust position of the exhaust box 84 corresponds to the components that are prone to temperature rise, such as the input port 9, the output port 10 and the meter body 15, which can facilitate rapid cooling. At the same time, it can cooperate with the electrical protection mechanism 7 to provide coordinated protection for the electrical components.

[0044] When the abnormal current and voltage interval is within the warning threshold setting range, the electrical control box 5 can turn on the heat dissipation mechanism 8 for cooling. When it is within the intervention threshold range, the power of the heat dissipation mechanism 8 is increased to the maximum through the electrical control box 5. When the emergency threshold is reached, the electrical protection mechanism 7 directly trips, and the electrical control box 5 controls the heat dissipation mechanism 8 to continue running for a period of time to cool down and prevent internal components from burning.

[0045] Reference Figure 9 and Figure 10 The electrical protection mechanism 7 includes a protection box 71 fixedly connected to one side of the input port 9, a load shunt is installed on the input port 9, a circuit breaker 75 is fixedly connected to one side of the bottom of the fixing frame 14, the circuit breaker 75 is connected to the input port 9, an optical fiber temperature sensor 76 is installed on the input port 9, and a voltage and current sensor 74 is installed on one side of the input port 9. Here, a voltage stabilizer and a surge protector are provided inside the protection box 71. The voltage stabilizer can suppress abnormal voltage, and the surge protector can shunt abnormal current, thereby achieving In order to alleviate the abnormal current, the load shunt includes a shunt 72 installed on the input port 9. One end of the shunt 72 is fixedly connected to a plurality of idle conductors 73. The idle conductors 73 can be used as auxiliary conductors and are not operated for transmission when the meter box is operating normally. When the current and voltage are abnormal, the current at the input port 9 is shunted and transmitted to the idle conductors 73 through the shunt 72, and the current is shunted through the idle conductors 73. The interior of the electric control box 5 is provided with a signal transmission module, an alarm module, a timing module, a central processing module and a control module.

[0046] The signal transmission module inside the electric control box 5 can transmit monitoring data to the remote background in real time, and at the same time, the monitoring data of the temperature and humidity sensor 6 and the electrical protection mechanism 7 can be received and summarized, and the data can be processed by the central processing module. The alarm module can send an alarm reminder to the background, and the control module can control the electrical protection mechanism 7 and the heat dissipation mechanism 8 to control their operation. The timing module can calculate the operating time of the electrical protection mechanism 7 and the heat dissipation mechanism 8, and cooperate with the control module to control the electrical protection mechanism 7 and the heat dissipation mechanism 8.

[0047] The current and voltage at the input port 9 can be monitored in real time through the voltage and current sensor 74. When the abnormal current and voltage interval is within the warning threshold setting range, part of the current on the input port 9 is guided to the idle conductor 73 through the operation of the diverter 72, reducing the current flow of the abnormal main conductor, and at the same time, an alarm is issued to the background. When the abnormal current and voltage are within the intervention threshold, the surge protector and voltage stabilizer in the protection box 71 are used to doubly alleviate the current and voltage. If the current and voltage have not recovered, the circuit breaker 75 is controlled to delay tripping. When the emergency threshold is reached, the circuit breaker 75 can be controlled to trip directly, so that the abnormal current and voltage can be monitored and protected in multiple layers. At the same time, the temperature of the input port 9 is monitored in real time through the optical fiber temperature sensor 76, which is convenient for monitoring the temperature changes of the input port 9 and reducing the possibility of misjudgment.

[0048] Working principle: When an electrical abnormality occurs at the input port 9, the electric control box 5 controls the electrical protection mechanism 7 while also controlling the heat dissipation mechanism 8. When the abnormal current and voltage interval is within the warning threshold setting range, the electric control box 5 can control the heat dissipation mechanism 8, so that the heat dissipation mechanism 8 cools the input port 9 and the internal components in the box, and cooperates with the internal components of the electrical protection mechanism 7 to guide part of the current on the input port 9, and coordinates the current and voltage within the warning threshold range to avoid minor abnormalities from being upgraded to faults. Within the intervention threshold, the power of the heat dissipation mechanism 8 can be increased to the maximum through the electric control box 5, and the current and voltage can be doubly alleviated through the electrical protection mechanism 7. If the current and voltage still have not recovered, If the fault is detected, the electrical protection mechanism 7 is controlled to delay tripping, so as to cool the internal components to the greatest extent, thereby extending the power supply stability. When the emergency threshold is reached, the electrical protection mechanism 7 can be controlled to trip directly, and the heat dissipation mechanism 8 can be controlled to continue to operate for a period of time to cool down, so as to avoid component burning. The heat dissipation mechanism 8 is then combined with the electrical protection mechanism 7 to form a dynamic linkage of monitoring and protection. The heat dissipation is actively started at the early warning threshold, and the fault development is delayed by lowering the component temperature. The heat dissipation power is gradually enhanced as the abnormality level increases, forming a gradient response with the protection measures of the electrical protection mechanism 7, effectively reducing unnecessary power outages. At the same time, in the case of severe overcurrent, the risk of component burning after tripping is reduced by heat dissipation, thereby improving the safety and power supply reliability of the meter box.

[0049] At the same time, the meter box adopts a double-sided layout, with the operation module and the display module arranged on both sides of the box body 1, the operation and display are separated, and box door 1 2 and box door 2 3 are respectively provided on both sides. Box door 2 3 is provided with a flip-up observation window, corresponding to the component group installed inside the box body 1, and box door 1 2 is provided with a flip-up operation port 21, which is set at the display control of the meter body 15, so that people can operate the meter body 15 and check some components without opening the meter box, which greatly reduces the risk of electric shock, improves the safety of people's operation, and improves the maintenance efficiency. In addition, the combination of the double-sided layout and the hierarchical protection mechanism of the electrical protection mechanism 7 forms a three-dimensional design of remote monitoring → local operation → comprehensive protection, which comprehensively improves the safety of the meter box.

Claims

1. A double-sided protective three-phase multi-meter meter box, comprising a box body (1), characterized in that: The upper end of the interior of the box (1) is provided with a splicing plate (11), and both sides of the interior of the box (1) are provided with mounting frames (13), a plurality of mounting plates (12) are provided on the mounting frames (13), a plurality of electric meter bodies (15) are fixedly connected to the mounting plates (12), a connecting conductor group (16) is provided at one end of the electric meter body (15), a fixing frame (14) is provided on the inner bottom of the box (1), one side of the box (1) is rotatably connected to a box door 1 (2), and the other side of the box (1) is rotatably connected to a box door 2 (3), a plurality of flip-type operating ports (21) are provided on the box door 1 (2), a plurality of flip-type observation windows are provided on the box door 2 (3), and the box ( A plurality of ventilation structures (4) are fixedly connected to both sides of the box (1), an input port (9) is installed at one end of the inner bottom of the box (1), and an output port (10) is installed at the other end of the inner bottom of the box (1), and the input port (9) and the output port (10) are both connected to the meter body (15), an electric control box (5) is installed in the middle of the inner bottom of the box (1), an electric protection mechanism (7) is installed inside the box (1), a temperature and humidity sensor (6) is installed on the mounting frame (13), and a detachable heat dissipation mechanism (8) is installed on both sides of the inner side of the box (1), and the electric control box (5) is electrically connected to the temperature and humidity sensor (6), the electric protection mechanism (7) and the heat dissipation mechanism (8).

2. The double-sided protective three-phase multi-meter meter box according to claim 1, characterized in that: The flip-type operating port (21) comprises a connecting box (211) fixedly connected to the box door (2), a connecting window (212) is provided on one side of the interior of the connecting box (211), and a closing cover (213) is rotatably connected to the top side of the connecting box (211), and the connecting window (212) corresponds to the meter body (15).

3. The double-sided protective three-phase multi-meter meter box according to claim 1, characterized in that: The flip-type observation window comprises an observation window (31) fixedly connected to the second box door (3); the second box door (3) is rotatably connected to a second closing cover (32); the second closing cover (32) is located outside the observation window (31).

4. The double-sided protective three-phase multi-meter meter box according to claim 1, characterized in that: The ventilation structure (4) comprises a ventilation grille 1 (41) fixedly connected to one side of the box body (1), a dustproof net (42) fixedly connected to the interior of the ventilation grille 1 (41), and a ventilation grille 2 (43) fixedly connected to one end of the ventilation grille 1 (41).

5. The double-sided protective three-phase multi-meter meter box according to claim 1, characterized in that: The heat dissipation mechanism (8) includes a wind box (81) detachably mounted on one side of the interior of the box (1), wherein the upper and lower ends of the wind box (81) are fixedly connected to exhaust boxes (84), and a plurality of exhaust fans (82) are fixedly connected to the wind box (81), and a plurality of heating plates (83) are fixedly connected to the wind box (81), and the exhaust fans (82) correspond to the heating plates (83).

6. The double-sided protective three-phase multi-meter meter box according to claim 1, characterized in that: A detachable mounting seat (86) is installed at the upper end of one side of the interior of the box body (1), and a plurality of exhaust fans (87) are fixedly connected to the mounting seat (86).

7. The double-sided protective three-phase multi-meter meter box according to claim 5, characterized in that: A semiconductor refrigeration plate (85) is fixedly connected to one side of the interior of the exhaust box (84), and an air guide slope is provided on the exhaust box (84).

8. The double-sided protective three-phase multi-meter meter box according to claim 1, characterized in that: The electrical protection mechanism (7) comprises a protection box (71) fixedly connected to one side of the input port (9), a load shunt is installed on the input port (9), a circuit breaker (75) is fixedly connected to one side of the bottom of the fixing frame (14), the circuit breaker (75) is connected to the input port (9), an optical fiber temperature sensor (76) is installed in the input port (9), and a voltage and current sensor (74) is installed on one side of the input port (9).

9. The double-sided protective three-phase multi-meter meter box according to claim 8, characterized in that: The load shunt component comprises a shunt (72) mounted on an input port (9), and one end of the shunt (72) is fixedly connected to a plurality of idle conductors (73).

10. The double-sided protection three-phase multi-meter meter box according to claim 1, characterized in that: The electric control box (5) is internally provided with a signal transmission module, an alarm module, a timing module, a central processing module and a control module.

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