Distribution box for power grid regulation and control

Abstract

The invention belongs to the technical field of power grid power distribution equipment, and particularly relates to a power distribution box for power grid regulation and control, the power distribution box comprises a power distribution box main body and a box door, the inner side wall of the box door is provided with a rectangular through hole, the hole wall of the rectangular through hole is fixedly connected with a connection box, and the outer wall of the connection box is fixedly connected with a PLC controller. The inner wall of the connecting box is fixedly connected with a first partition plate, a second partition plate and a third partition plate. The distribution box for power grid regulation and control is designed for the rural power grid use environment, has the functions of moisture prevention and efficient cooling, also has the function of preventing small animals from invading, prevents electrical elements in the distribution box from being damaged by the small animals, can prolong the service life of the electrical elements in the distribution box, and can improve the reliability of the electrical elements in the distribution box. The power supply stability of a power grid and the safety of power distribution station equipment can be improved, the insect prevention liquid medicine in the liquid storage area can be automatically supplemented, the period of supplementing and maintaining the insect prevention liquid medicine of the power distribution box is shortened, and the use convenience of the power distribution box is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of power grid distribution equipment, and in particular relates to a distribution box used for power grid regulation. Background Art

[0002] The distribution box for power grid regulation is a key device for power distribution and control in the power grid system. It is mainly used to receive and distribute electrical energy, converting high-voltage electricity from the power grid into suitable low-voltage electricity for use by various electrical equipment. The distribution box is usually equipped with circuit breakers, fuses, contactors and other electrical components, which can protect the circuit, control on and off, and adjust parameters. Through reasonable regulation of the distribution box, accurate distribution of electricity and fault isolation can be achieved, ensuring the stability and reliability of power grid operation. For example, the patent authorization announcement number is CN221102866U, which discloses a rural power grid integrated distribution box.

[0003] At present, most of the distribution boxes used for rural power grid control are installed in small substations, and the following problems are often encountered during the use of distribution boxes: In rural areas, especially in the rainy season or near rivers, ponds and other areas, the air humidity is often high. However, the moisture-proof measures of many small distribution stations are not perfect, which makes the distribution box used for power grid control extremely vulnerable to humid air. The moisture in the air can enter the distribution box through the wire holes, heat dissipation holes and other channels, thereby causing the metal conductive parts of the electrical components to become damp. On the one hand, this dampness will reduce the insulation resistance of the electrical components, which is easy to cause leakage faults. On the other hand, the humid environment will cause the metal conductive parts to rust, seriously affecting their mechanical properties and electrical connection performance. These problems not only interfere with the stability of rural power supply, bring many inconveniences to residents' daily life and agricultural production, but also greatly affect the service life and reliability of the electrical components in the distribution box; There are often small animals such as insects, rats, snakes, ants, etc. around small distribution stations in rural power grids. They may drill into the distribution box through the wire holes and heat dissipation holes of the distribution box. For example, mice may chew on wires and insulating materials, destroying the integrity of the equipment and causing circuit interruption. Snakes may touch electrical components while swimming, causing short circuits and damage to electrical components. Especially in humid environments, distribution boxes are more likely to attract small animals, further increasing the probability of these safety hazards occurring, seriously affecting the stability of rural power supply and the safety of distribution station equipment.

[0004] To this end, we propose a distribution box for power grid regulation to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to provide a distribution box for power grid regulation in view of the above problems.

[0006] To achieve the above-mentioned object, the present invention adopts the following technical scheme: a distribution box for power grid control, comprising a distribution box body and a box door, the inner side wall of the box door is provided with a rectangular through hole, and the hole wall of the rectangular through hole is fixedly connected with a connection box, the outer wall of the connection box is fixedly connected with a PLC controller, the inner wall of the connection box is fixedly connected with a first partition, a second partition and a third partition, the first partition, the second partition and the third partition divide the internal cavity of the connection box into an air intake area, a moisture removal area, a diversion area and a liquid storage area; The outer wall of the connection box located in the air inlet area is provided with a rectangular air inlet, and the inner wall of the rectangular air inlet is fixedly connected with a dustproof mesh plate, and the inner wall of the connection box located in the air inlet area is fixedly connected with an air supply mechanism; The outer wall of the second partition is provided with a mounting hole, and a dehumidification mechanism is fixedly connected to the hole wall of the mounting hole; The outer wall of the third partition is provided with a fixed through hole, and the hole wall of the fixed through hole is fixedly connected with an animal intrusion prevention mechanism; An insect repellent liquid replenishing mechanism is fixedly connected to the outer wall of the bottom end of the distribution box body.

[0007] In the above-mentioned distribution box for power grid regulation, the air supply mechanism includes a micro air pump fixedly connected to the inner wall of the connection box, the air outlet end of the micro air pump is fixedly connected to a first conduit, the air outlet end of the first conduit passes through a first partition and is fixedly connected to a hollow block, the upper surface of the hollow block is fixedly connected to the inner wall of the connection box, and the lower surface of the hollow block is fixedly connected to a plurality of first air nozzles.

[0008] In the above-mentioned distribution box for power grid regulation, the dehumidification mechanism includes a semiconductor refrigeration plate fixedly embedded with a second partition, the outer wall of the cooling side of the semiconductor refrigeration plate is fixedly connected with a plurality of metal meshes, and the metal meshes are located directly below the hollow block, the top of the connection box located in the dehumidification area is fixedly embedded with a delivery pipe, the air inlet end of the delivery pipe extends downward to the bottom of the connection box, the air outlet end of the delivery pipe is fixedly connected with a hollow bar, the outer wall of the hollow bar is fixedly connected to the inner wall of the distribution box body, the upper and lower surfaces of the hollow bar are fixedly connected with a plurality of second air nozzles, the bottom inner wall of the connection box located in the dehumidification area is fixedly connected with a liquid level switch, the lower surface of the connection box located in the dehumidification area is fixedly embedded with a first normally closed solenoid valve, the liquid outlet end of the first normally closed solenoid valve is fixedly connected with a second conduit, the water outlet end of the second conduit passes through the outer wall of the box door, and the top inner wall of the distribution box body is fixedly connected with a first humidity sensor.

[0009] In the above-mentioned distribution box for power grid regulation, the anti-animal intrusion mechanism includes a three-way reversing solenoid valve fixedly embedded with the third partition, a through hole is opened on the side wall of the second partition, and a U-shaped capillary is fixedly connected to the hole wall of the through hole, the air inlet end of the three-way reversing solenoid valve is located inside the diversion area, one of the air outlet ends of the three-way reversing solenoid valve passes through the top of the connection box, the other air outlet end of the three-way reversing solenoid valve passes through the third partition, and is fixedly connected to a heat-conducting coil, the air outlet end of the heat-conducting coil passes through the outer walls of the connection box and the box door in turn, and the inner wall of the connection box located in the liquid storage area is opened A countersunk hole is provided, and a connecting cover is fixedly connected to the hole wall of the countersunk hole. Micro electric push rods are fixedly embedded in the inner walls at both ends of the connecting cover. L-shaped rods are fixedly connected to the opposite sides of the two micro electric push rods. A connecting through hole matching the L-shaped rod is opened on the outer wall of the connecting cover. An elastic liquid-conducting cotton core is fixedly connected to the rod walls of the two L-shaped rods. The bottom end of the elastic liquid-conducting cotton core passes through the bottom end of the heat-conducting coil and extends to the bottom of the liquid storage area. The top inner wall and the bottom inner wall of the distribution box body are fixedly connected with pyroelectric infrared sensors, and the bottom inner wall of the distribution box body is fixedly connected with an electric bell.

[0010] In the above-mentioned distribution box for power grid control, the rod walls of the two L-shaped rods are fixedly connected with a rubber cover, and the top of the rubber cover is fixedly connected to the lower surface of the connection cover.

[0011] In the above-mentioned distribution box for power grid regulation, the insect-proof liquid replenishing mechanism includes a medicine liquid box fixedly connected to the lower surface of the distribution box body, the interior of the medicine liquid box is filled with an insect-proof liquid layer, the inner wall of the medicine liquid box is fixedly connected to a micro water pump, the liquid outlet end of the micro water pump is fixedly connected to a third conduit, the outlet end of the third conduit passes through the outer wall of the medicine liquid box, the liquid outlet end of the third conduit is fixedly connected to a second normally closed solenoid valve, the liquid outlet end of the second normally closed solenoid valve is fixedly connected to the lower surface of the connection box located in the liquid storage area, the upper surface of the connection box is fixedly connected to an L-shaped frame, the upper surface of the L-shaped frame is fixedly connected to a plug-in type humidity sensor, and the detection rod end of the plug-in type humidity sensor is inserted into the top end of the elastic liquid-conducting cotton core.

[0012] In the above-mentioned distribution box for power grid regulation, the insect-proof liquid layer is any one of peppermint oil and lavender essential oil.

[0013] In the above-mentioned distribution box for power grid control, the outer wall of the heat dissipation side of the semiconductor refrigeration plate is fixedly connected with a heat sink, and the air outlet end of the U-shaped capillary is located below the heat sink.

[0014] Compared with the existing technology, the advantages of a distribution box for power grid control are: 1. Through the air supply mechanism and dehumidification mechanism, when the air humidity inside the distribution box body is relatively high, the first humidity sensor and the PLC controller control the semiconductor refrigeration plate to be energized, and then the cooling side of the semiconductor refrigeration plate can reduce the temperature of the metal mesh and the dehumidification area. After that, the air ejected from the first air nozzle is affected by the low temperature and liquefied into water droplets for dehumidification when passing through the metal mesh and the dehumidification area. Then, most of the dry and low-temperature air in the dehumidification area is transported to the distribution box body through the conveying pipe, the hollow bar and the second air nozzle, so as to avoid the electrical components in the distribution box body being disturbed by the humid air. This can not only avoid the decrease in the insulation resistance of the electrical components, but also avoid the rusting of the metal conductive parts in the electrical components, ensure the mechanical properties and electrical connection performance of the electrical components, and avoid leakage faults in the distribution box body. This mechanism enables the distribution box used for rural power grid regulation to have the functions of moisture-proof and efficient cooling, which can not only improve the service life and reliability of the electrical components in the distribution box, but also improve the stability of the power supply of the rural power grid.

[0015] 2. Through the anti-animal intrusion mechanism, when the distribution box is in use, the insect-proof liquid in the liquid storage area will evaporate through the elastic liquid-conducting cotton core. The stimulation produced by the insect-proof liquid can interfere with the sense of smell of small animals, preventing them from approaching the main body of the distribution box. In addition, while the main body of the distribution box is dehumidified, the PLC controller also controls the three-way reversing solenoid valve and the micro electric push rod to work. The three-way reversing solenoid valve inputs hot air into the heat conduction coil, and the heat conduction coil conducts the heat of the hot air to the insect-proof liquid in the liquid storage area, thereby accelerating the volatilization of the insect-proof liquid by increasing the temperature. At the same time, the moving end of the micro electric push rod contracts to expand the volatilization area of ​​the insect-proof liquid on the top of the elastic liquid-conducting cotton core, further increasing the volatilization of the insect-proof liquid in the liquid storage area. By increasing the content of insect repellent liquid in the main body of the distribution box to further stimulate the sense of smell of small animals, it is possible to cope with the situation where a large number of small animals appear in a humid environment. In addition, if some large small animals enter the main body of the distribution box without fear of the stimulation of the insect repellent liquid, the PLC controller controls the start of the electric bell, and the electric bell produces a rapid and high-pitched driving-away bell sound. The driving-away bell sound can drive away large small animals in the main body of the distribution box and prevent the electrical components in the main body of the distribution box from being disturbed by small animals. This mechanism enables the distribution box used for rural power grid regulation to have the function of preventing small animals from invading, preventing the electrical components in the distribution box from being damaged by small animals, improving the reliability of the use of the distribution box, and improving the power supply stability of the rural power grid and the safety of the distribution station equipment.

[0016] 3. Through the set insect-proof liquid replenishing mechanism, as the use time of the distribution box body increases, the insect-proof liquid in the liquid storage area dries up, and the elastic liquid-conducting cotton core becomes dry, and the plug-in humidity sensor and the PLC controller control the micro water pump and the second normally closed solenoid valve to start for seconds. During this second, the insect-proof liquid in the liquid tank is transported to the liquid storage area of ​​the connection box through the micro water pump, the third conduit and the second normally closed solenoid valve for storage and standby. At the same time, the elastic liquid-conducting cotton core is moistened again. This mechanism enables the insect-proof liquid to have the function of automatic replenishment, reduces the cycle of insect-proof liquid replenishment and maintenance of the distribution box, and improves the convenience of using the distribution box. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of a distribution box for power grid control provided by the present invention; Figure 2 It is a structural schematic diagram of a cross-section of a connection box in a distribution box for power grid control provided by the present invention; Figure 3 yes Figure 2 The structural diagram of part A in the figure; Figure 4 It is a structural schematic diagram of a hollow block part in a distribution box for power grid control provided by the present invention; Figure 5 It is a structural schematic diagram of a hollow bar portion in a distribution box for power grid regulation provided by the present invention; Figure 6 It is a three-dimensional structural schematic diagram of a connection box part in a distribution box for power grid regulation provided by the present invention.

[0018] In the figure: 1 distribution box body, 2 box door, 3 connection box, 4 PLC controller, 5 air supply mechanism, 51 micro air pump, 52 first conduit, 53 hollow block, 54 first air nozzle, 6 dehumidification mechanism, 61 semiconductor refrigeration sheet, 62 metal mesh, 63 delivery pipe, 64 hollow bar, 65 second air nozzle, 66 liquid level switch, 67 first normally closed solenoid valve, 68 second conduit, 7 animal intrusion prevention mechanism, 69 first humidity sensor, 71 three-way reversing solenoid valve, 72 U-shaped capillary, 73 heat conduction coil, 7 4 connecting cover, 75 micro electric push rod, 76 L-shaped rod, 77 elastic liquid-conducting cotton core, 78 pyroelectric infrared sensor, 79 electric bell, 8 insect repellent liquid replenishing mechanism, 81 liquid tank, 82 insect repellent liquid layer, 83 micro water pump, 84 third conduit, 85 second normally closed solenoid valve, 86 L-shaped frame, 87 plug-in humidity sensor, 9 heat sink, 10 first partition, 11 second partition, 12 third partition, 13 air intake area, 14 dehumidification area, 15 diversion area, 16 liquid storage area, 17 dustproof mesh plate, 18 rubber cover. Implementation

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] like Figure 1-Figure 6 As shown, a distribution box for power grid control includes a distribution box body 1 and a box door 2, the inner wall of the box door 2 is provided with a rectangular through hole, and the hole wall of the rectangular through hole is fixedly connected to a connection box 3, the outer wall of the connection box 3 is fixedly connected to a PLC controller 4, the inner wall of the connection box 3 is fixedly connected to a first partition 10, a second partition 11 and a third partition 12, the first partition 10, the second partition 11 and the third partition 12 divide the internal cavity of the connection box 3 into an air intake area 13, a moisture removal area 14, a diversion area 15 and a liquid storage area 16, and the connection box 3 is located in the air intake area 13 A rectangular air inlet is provided on the outer wall, and a dustproof mesh plate 17 is fixedly connected to the inner wall of the rectangular air inlet. An air supply mechanism 5 is fixedly connected to the inner wall of the connecting box 3 located in the air inlet area 13. The air supply mechanism 5 includes a micro air pump 51 fixedly connected to the inner wall of the connecting box 3. The air outlet end of the micro air pump 51 is fixedly connected to a first conduit 52. The air outlet end of the first conduit 52 passes through the first partition plate 10 and is fixedly connected to a hollow block 53. The upper surface of the hollow block 53 is fixedly connected to the inner wall of the connecting box 3, and the lower surface of the hollow block 53 is fixedly connected to a plurality of first air nozzles 54.

[0021] The outer wall of the second partition 11 is provided with a mounting hole, and the hole wall of the mounting hole is fixedly connected with a dehumidification mechanism 6, the dehumidification mechanism 6 includes a semiconductor refrigeration plate 61 fixedly embedded with the second partition 11, and the outer wall of the refrigeration side of the semiconductor refrigeration plate 61 is fixedly connected with a plurality of metal meshes 62, and the metal meshes 62 are located directly below the hollow block 53, and the connection box 3 is located at the top of the dehumidification area 14 and is fixedly embedded with a delivery pipe 63, the air inlet end of the delivery pipe 63 extends downward to the bottom of the connection box 3, and the air outlet end of the delivery pipe 63 is fixedly connected with a hollow bar 64, the outer wall of the hollow bar 64 is fixedly connected to the inner wall of the distribution box body 1, and the upper surface and the lower surface of the hollow bar 64 A plurality of second air nozzles 65 are fixedly connected thereto; a liquid level switch 66 is fixedly connected to the inner wall of the bottom end of the connection box 3 located in the dehumidification area 14; a first normally closed solenoid valve 67 is fixedly embedded in the lower surface of the connection box 3 located in the dehumidification area 14; a second conduit 68 is fixedly connected to the liquid outlet end of the first normally closed solenoid valve 67; a water outlet end of the second conduit 68 passes through the outer wall of the box door 2; a first humidity sensor 69 is fixedly connected to the inner wall of the top end of the distribution box body 1. This mechanism enables the distribution box for rural power grid regulation to have the functions of moisture-proof and efficient cooling, which can not only improve the service life and reliability of electrical components in the distribution box, but also improve the stability of power supply in the rural power grid.

[0022] The outer wall of the third partition 12 is provided with a fixed through hole, and the hole wall of the fixed through hole is fixedly connected with an anti-animal intrusion mechanism 7, the anti-animal intrusion mechanism 7 includes a three-way reversing solenoid valve 71 fixedly embedded with the third partition 12, the side wall of the second partition 11 is provided with a through hole, and the hole wall of the through hole is fixedly connected with a U-shaped capillary 72, the heat dissipation side outer wall of the semiconductor refrigeration plate 61 is fixedly connected with a heat sink 9, the outlet end of the U-shaped capillary 72 is located below the heat sink 9, and a part of dry and low-temperature air in the dehumidification zone 14 is transported to the semiconductor through the U-shaped capillary 72. The heat dissipation side of the refrigeration plate 61 cooperates with the heat sink 9 to accelerate the heat dissipation of the semiconductor refrigeration plate 61 to ensure the refrigeration and dehumidification effect of the semiconductor refrigeration plate 61. The air inlet end of the three-way reversing solenoid valve 71 is located inside the diversion area 15. One of the air outlet ends of the three-way reversing solenoid valve 71 passes through the top of the connection box 3. The other air outlet end of the three-way reversing solenoid valve 71 passes through the third partition 12 and is fixedly connected with a heat conduction coil 73. The air outlet end of the heat conduction coil 73 passes through the outer wall of the connection box 3 and the box door 2 in turn. The inner wall of the connection box 3 located in the liquid storage area 16 is provided with The countersunk hole is fixedly connected to the hole wall of the countersunk hole with a connecting cover 74. The inner walls of both ends of the connecting cover 74 are fixedly embedded with micro-electric push rods 75. The opposite sides of the two micro-electric push rods 75 are fixedly connected with L-shaped rods 76. The rod walls of the two L-shaped rods 76 are jointly fixedly connected with a rubber cover 18. The top of the rubber cover 18 is fixedly connected to the lower surface of the connecting cover 74. The rubber cover 18 can prevent the insect repellent liquid from volatilizing from the connecting cover 74. The outer wall of the connecting cover 74 is provided with a connecting through hole that matches the L-shaped rod 76. The rod walls of the two L-shaped rods 76 are jointly fixedly connected. The bottom end of the elastic liquid-conducting cotton core 77 passes through the bottom end of the heat-conducting coil 73 and extends to the bottom of the liquid storage area 16. The top inner wall and the bottom inner wall of the distribution box body 1 are fixedly connected with a pyroelectric infrared sensor 78. The bottom inner wall of the distribution box body 1 is fixedly connected with an electric bell 79. This mechanism enables the distribution box for rural power grid regulation to have the function of preventing small animals from invading, avoiding the electrical components in the distribution box from being damaged by small animals, improving the reliability of the distribution box, and improving the stability of power supply in the rural power grid and the safety of the distribution station equipment. The outer wall of the bottom end of the distribution box body 1 is fixedly connected with an insect repellent liquid replenishing mechanism 8, which includes a liquid medicine box 81 fixedly connected to the lower surface of the distribution box body 1, and the interior of the liquid medicine box 81 is filled with an insect repellent liquid layer 82, which is any one of peppermint oil and lavender essential oil. The insect repellent liquid layer 82 can volatilize irritating positions, stimulate the sense of smell of small animals, and prevent small animals from invading the distribution box. The inner wall of the liquid medicine box 81 is fixedly connected with a micro water pump 83, and the liquid outlet end of the micro water pump 83 is fixedly connected with a third conduit 84, and the outlet end of the third conduit 84 passes through the liquid medicine box. The outer wall of the liquid tank 81 and the liquid outlet end of the third conduit 84 are fixedly connected to a second normally closed solenoid valve 85, and the liquid outlet end of the second normally closed solenoid valve 85 is fixedly connected to the lower surface of the connection box 3 located in the liquid storage area 16, and the upper surface of the connection box 3 is fixedly connected to an L-shaped frame 86, and the upper surface of the L-shaped frame 86 is fixedly connected to a plug-in type humidity sensor 87, and the detection rod end of the plug-in type humidity sensor 87 is inserted into the top of the elastic liquid-conducting cotton core 77. This mechanism enables the insect repellent liquid to have the function of automatic replenishment, thereby reducing the cycle of replenishment and maintenance of the insect repellent liquid in the distribution box and improving the convenience of using the distribution box.

[0023] The micro air pump 51, the semiconductor refrigeration plate 61, the first normally closed solenoid valve 67, the three-way reversing solenoid valve 71, the micro electric push rod 75, the electric bell 79, the micro water pump 83 and the second normally closed solenoid valve 85 are all electrically connected to the output end of the PLC controller 4 through wires, and the liquid level switch 66, the first humidity sensor 9, the pyroelectric infrared sensor 78 and the plug-in humidity sensor 87 are all electrically connected to the input end of the PLC controller 4 through wires. The pyroelectric infrared sensor 78 utilizes the pyroelectric effect. When infrared radiation causes the crystal temperature to change, the polarization state of the pyroelectric infrared sensor 78 changes to generate an electric charge, thereby sending an electrical signal. The above-mentioned power-on devices and electrical connections are all prior arts and are well known to those skilled in the art, and will not be repeated here.

[0024] The operating principle of the present invention is described as follows: when the distribution box for rural power grid regulation is used in a small distribution station, the PLC controller 4 first controls the micro air pump 51 to start, and the micro air pump 51 sucks air through the rectangular air inlet of the air inlet area 13, and the air is then sprayed into the dehumidification area 14 through the first conduit 52, the hollow block 53 and the first air nozzle 54, and then most of the air is transported to the hollow bar 64 through the delivery pipe 63, and finally the air is sprayed out through the second air nozzle 65 and distributed inside the distribution box body 1, actively dissipating the heat of the electrical components inside the distribution box body 1, ensuring the reliable operation of the electrical components in the distribution box body 1, and a part of the dry and low-temperature air in the dehumidification area 14 is transported to the heat dissipation side of the semiconductor refrigeration plate 61 through the U-shaped capillary 72; At the same time, the insect repellent liquid in the liquid storage area 16 moistens the elastic liquid-conducting cotton core 77, and is automatically diffused into the interior of the distribution box body 1 through the elastic liquid-conducting cotton core 77. The insect repellent liquid can be selected from peppermint oil or lavender oil. Peppermint oil and lavender oil can evaporate autonomously at room temperature. The diffused insect repellent liquid is then diffused into the entire distribution box body 1 along with the airflow sprayed from the second air nozzle 65. Specifically, peppermint oil contains menthol, which can emit a cool smell. These smells can interfere with the sense of smell of small animals such as insects, rats, snakes, and ants, making them unwilling to approach, thereby achieving the goal of driving away small animals such as insects, rats, snakes, and ants. The purpose of animals entering the distribution box body 1 is that lavender oil contains linalool, linalyl acetate and other ingredients. The smell of these ingredients has a stimulating effect on the olfactory system of insects, rats, snakes and ants, which can prevent insects, rats, snakes and ants from approaching, and achieve the purpose of driving small animals such as insects, rats, snakes and ants into the distribution box body 1. At this time, the top of the elastic liquid-conducting cotton core 77 is squeezed and contracted by the micro-electric push rod 75. After the top of the elastic liquid-conducting cotton core 77 contracts, the area of ​​​​the evaporation of the insect repellent liquid is reduced, and the insect repellent liquid is prevented from being excessively volatilized in a dry environment where small animals are not easy to enter, thereby avoiding waste of the insect repellent liquid in the liquid storage area 16; When the humidity of the air inside the distribution box body 1 is high, the first humidity sensor 69 will detect the humidity inside the distribution box body 1 in real time, and send the humidity value to the PLC controller 4 in the form of an electrical signal. When the humidity value detected by the first humidity sensor 69 exceeds the maximum humidity threshold of the distribution box body 1 preset by the PLC controller 4, the PLC controller 4 controls the semiconductor refrigeration sheet 61 to be powered on, and then the cooling side of the semiconductor refrigeration sheet 61 can reduce the temperature of the metal mesh 62 and the dehumidification area 14, and then the first jet The air sprayed from the nozzle 54 is affected by the low temperature and liquefied into water droplets when passing through the metal mesh 62 and the dehumidification area 14. The water droplets eventually accumulate at the bottom of the dehumidification area 14. As the accumulated water level rises to the liquid level switch 66, the liquid level switch 66 is triggered by the accumulated water level and energized, and sends an electrical signal to the PLC controller 4. The PLC controller 4 controls the first normally closed solenoid valve 67 to be energized and opened for 3 seconds according to the electrical signal. During this 3-second period, the accumulated water at the bottom of the dehumidification area 14 is discharged through the opened first normally closed solenoid valve 67 and the second conduit 68. After that, the PLC controller 4 controls the first normally closed solenoid valve 67 to close, and then most of the dry and low-temperature air in the dehumidification area 14 is transported to the distribution box body 1 through the delivery pipe 63, the hollow bar 64 and the second air nozzle 65, so as to prevent the electrical components in the distribution box body 1 from being disturbed by the humid air. This can not only prevent the insulation resistance of the electrical components from decreasing, but also prevent the metal conductive parts in the electrical components from rusting, ensure the mechanical properties and electrical connection properties of the electrical components, and prevent the distribution box body 1 from leakage faults. A part of the dry and low-temperature air in the dehumidification area 14 is also transported to the heat dissipation side of the semiconductor refrigeration plate 61 through the U-shaped capillary 72, and cooperates with the heat sink 9 to accelerate the heat dissipation of the semiconductor refrigeration plate 61, so as to ensure the refrigeration and dehumidification effect of the semiconductor refrigeration plate 61. At this time, the air in the diversion area 15 is discharged from the connection box 3 through the three-way reversing solenoid valve 71. This mechanism enables the distribution box for rural power grid control to have the functions of moisture-proof and efficient cooling, which can not only improve the service life and reliability of the electrical components in the distribution box, but also improve the stability of the power supply of the rural power grid. While the distribution box body 1 is being dehumidified, the PLC controller 4 also controls the three-way reversing solenoid valve 71 and the micro electric push rod 75 to work. The three-way reversing solenoid valve 71 is controlled to change the direction of gas transmission. At this time, the hot air generated by the heat dissipation side of the semiconductor refrigeration plate 61 in the diversion area 15 enters the heat conducting coil 73, and the heat conducting coil 73 conducts the heat of the hot air to the insect repellent liquid in the liquid storage area 16, thereby accelerating the volatilization of the insect repellent liquid by increasing the temperature. At the same time, the micro electric push rod 75 contracts, and the micro electric push rod 75 drives the L-shaped rod 76 to move. The L-shaped rod 76 moves to expand the volatilization area of ​​the insect repellent liquid on the top of the elastic liquid-conducting cotton core 77, further increasing the volatilization of the insect repellent liquid in the liquid storage area 16, and by increasing the content of the insect repellent liquid in the distribution box body 1, the sense of smell of small animals is stimulated to cope with moisture. In a wet environment, a large number of small animals may appear. In addition, if some large small animals enter the distribution box body 1 without fear of the stimulation of the insect repellent liquid, the pyroelectric infrared sensor 78 will detect the infrared rays generated by the heat of these small animals and send an electrical signal to the PLC controller 4. The PLC controller 4 controls the electric bell 79 to start, and the electric bell 79 produces a rapid and high-pitched driving ring. The driving ring can drive away the large small animals in the distribution box body 1 and prevent the electrical components in the distribution box body 1 from being disturbed by the small animals. This mechanism enables the distribution box for rural power grid control to have the function of preventing small animals from invading, preventing the electrical components in the distribution box from being damaged by small animals, improving the reliability of the use of the distribution box, and improving the power supply stability of the rural power grid and the safety of the distribution station equipment; As the use time of the distribution box body 1 increases, the insect repellent liquid in the liquid storage area 16 dries up, and the elastic liquid-conducting cotton core 77 becomes dry at this time, and the plug-in type humidity sensor 87 detects the humidity of the elastic liquid-conducting cotton core 77 in real time. If the plug-in type humidity sensor 87 detects that the humidity of the elastic liquid-conducting cotton core 77 is lower than the warning threshold preset by the PLC controller 4, the PLC controller 4 controls the micro water pump 83 and the second normally closed solenoid valve 85 to be energized and opened for 5 seconds. During this 5-second period, the insect repellent liquid in the liquid tank 81 is transported to the liquid storage area 16 of the connection box 3 through the micro water pump 83, the third conduit 84 and the second normally closed solenoid valve 85 for storage and standby. At the same time, the elastic liquid-conducting cotton core 77 is moistened again. After the 5-second countdown is completed, the PLC controller 4 controls the micro air pump 51 and the second normally closed solenoid valve 85 to close. This mechanism enables the insect repellent liquid to have the function of automatic replenishment, reduces the cycle of replenishment and maintenance of the insect repellent liquid in the distribution box, and improves the convenience of using the distribution box.

[0025] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A distribution box for power grid control, comprising a distribution box body (1) and a box door (2), characterized in that: The inner wall of the box door (2) is provided with a rectangular through hole, and a connection box (3) is fixedly connected to the hole wall of the rectangular through hole, a PLC controller (4) is fixedly connected to the outer wall of the connection box (3), and a first partition (10), a second partition (11) and a third partition (12) are fixedly connected to the inner wall of the connection box (3), and the first partition (10), the second partition (11) and the third partition (12) divide the internal cavity of the connection box (3) into an air intake area (13), a moisture removal area (14), a flow distribution area (15) and a liquid storage area (16); the connection box (3) is located A rectangular air inlet is provided on the outer wall of the air inlet area (13), and a dust screen (17) is fixedly connected to the inner wall of the rectangular air inlet; an air supply mechanism (5) is fixedly connected to the inner wall of the connection box (3) located in the air inlet area (13); a mounting hole is provided on the outer wall of the second partition (11), and a dehumidification mechanism (6) is fixedly connected to the hole wall of the mounting hole; a fixed through hole is provided on the outer wall of the third partition (12), and an animal intrusion prevention mechanism (7) is fixedly connected to the hole wall of the fixed through hole; and an insect repellent liquid replenishing mechanism (8) is fixedly connected to the outer wall of the bottom end of the distribution box body (1).

2. A distribution box for power grid control according to claim 1, characterized in that: The air supply mechanism (5) comprises a micro air pump (51) fixedly connected to the inner wall of the connection box (3); an air outlet end of the micro air pump (51) is fixedly connected to a first conduit (52); an air outlet end of the first conduit (52) passes through a first partition plate (10) and is fixedly connected to a hollow block (53); an upper surface of the hollow block (53) is fixedly connected to the inner wall of the connection box (3); and a lower surface of the hollow block (53) is fixedly connected to a plurality of first air nozzles (54).

3. A distribution box for power grid control according to claim 2, characterized in that: The dehumidification mechanism (6) comprises a semiconductor refrigeration plate (61) fixedly embedded in the second partition plate (11); a plurality of metal meshes (62) are fixedly connected to the outer wall of the cooling side of the semiconductor refrigeration plate (61); and the metal meshes (62) are located directly below the hollow block (53); a delivery pipe (63) is fixedly embedded in the top of the connection box (3) located in the dehumidification area (14); an air inlet end of the delivery pipe (63) extends downward to the bottom of the connection box (3); an air outlet end of the delivery pipe (63) is fixedly connected to a hollow bar (64); and an outer wall of the hollow bar (64) is connected to an inner wall of the distribution box body (1). The hollow bar (64) is fixedly connected to the wall, the upper surface and the lower surface of the hollow bar (64) are fixedly connected to a plurality of second air nozzles (65), the inner wall of the bottom end of the connection box (3) located in the dehumidification area (14) is fixedly connected to a liquid level switch (66), the lower surface of the connection box (3) located in the dehumidification area (14) is fixedly embedded with a first normally closed electromagnetic valve (67), the liquid outlet end of the first normally closed electromagnetic valve (67) is fixedly connected to a second conduit (68), the water outlet end of the second conduit (68) passes through the outer wall of the box door (2), and the top inner wall of the distribution box body (1) is fixedly connected to a first humidity sensor (69).

4. A distribution box for power grid control according to claim 3, characterized in that: The anti-animal intrusion mechanism (7) comprises a three-way reversing solenoid valve (71) fixedly embedded in the third partition (12); a through hole is provided on the side wall of the second partition (11); a U-shaped thin tube (72) is fixedly connected to the hole wall of the through hole; an air inlet end of the three-way reversing solenoid valve (71) is located inside the diversion area (15); one of the air outlet ends of the three-way reversing solenoid valve (71) passes through the top of the connection box (3); the other air outlet end of the three-way reversing solenoid valve (71) passes through the third partition (12) and is fixedly connected to a heat conducting coil (73); the air outlet end of the heat conducting coil (73) passes through the outer walls of the connection box (3) and the box door (2) in sequence; a countersunk hole is provided on the inner wall of the connection box (3) located in the liquid storage area (16); and the countersunk hole is provided at the inner wall of the connection box (3). A connection cover (74) is fixedly connected to the hole wall, and micro-electric push rods (75) are fixedly embedded in the inner walls at both ends of the connection cover (74). L-shaped rods (76) are fixedly connected to the opposite sides of the two micro-electric push rods (75). The outer wall of the connection cover (74) is provided with a connecting through hole that matches the L-shaped rod (76). The rod walls of the two L-shaped rods (76) are commonly fixedly connected to an elastic liquid-conducting cotton core (77). The bottom end of the elastic liquid-conducting cotton core (77) passes through the bottom end of the heat-conducting coil (73) and extends to the bottom of the liquid storage area (16). The top inner wall and the bottom inner wall of the distribution box body (1) are fixedly connected to pyroelectric infrared sensors (78), and the bottom inner wall of the distribution box body (1) is fixedly connected to an electric bell (79).

5. A distribution box for power grid control according to claim 4, characterized in that: The rod walls of the two L-shaped rods (76) are commonly fixedly connected to a rubber cover (18), and the top end of the rubber cover (18) is fixedly connected to the lower surface of the connecting cover (74).

6. A distribution box for power grid control according to claim 4, characterized in that: The insect repellent liquid replenishing mechanism (8) comprises a liquid medicine box (81) fixedly connected to the lower surface of the distribution box body (1); the interior of the liquid medicine box (81) is filled with an insect repellent liquid layer (82); the inner wall of the liquid medicine box (81) is fixedly connected to a micro water pump (83); the liquid outlet end of the micro water pump (83) is fixedly connected to a third conduit (84); the outlet end of the third conduit (84) passes through the outer wall of the liquid medicine box (81); the liquid outlet end of the third conduit (84) is fixedly connected to a second normally closed solenoid valve (85); the liquid outlet end of the second normally closed solenoid valve (85) is fixedly connected to the lower surface of the connection box (3) located in the liquid storage area (16); the upper surface of the connection box (3) is fixedly connected to an L-shaped frame (86); the upper surface of the L-shaped frame (86) is fixedly connected to an insertion rod type humidity sensor (87); the detection rod end of the insertion rod type humidity sensor (87) is inserted into the top end of the elastic liquid guiding cotton core (77).

7. A distribution box for power grid control according to claim 6, characterized in that: The insect-proof liquid layer (82) is any one of peppermint oil and lavender essential oil.

8. A distribution box for power grid control according to claim 4, characterized in that: The heat dissipation side outer wall of the semiconductor refrigeration sheet (61) is fixedly connected to a heat dissipation sheet (9), and the air outlet end of the U-shaped capillary tube (72) is located below the heat dissipation sheet (9).

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