A multi-level protection structure for outdoor safety power distribution box

Abstract

The present invention discloses a multi-level protection structure of an outdoor safety power distribution box, which belongs to the field of distribution box protection, and includes a distribution box, a cooling box is fixedly connected to the side wall of the distribution box, a side of the cooling box in contact with the distribution box penetrates the side wall of the distribution box and extends to the inside of the distribution box, a cooling liquid is stored in the cooling box, a condensation component is arranged above the cooling box, the condensation component uses the temperature difference between the inside and outside of the distribution box to cool the inside of the distribution box, and a circulation component is arranged below the cooling box. The opening and closing of the condensation component and the circulation component can be realized by intelligently controlling the temperature difference detected by the first temperature sensor and the second temperature sensor, and the most suitable cooling mode is automatically selected. When the temperature difference meets the condensation condition, the natural evaporation and condensation process of liquid ammonia is used for heat exchange, and no electric energy is consumed, thereby realizing efficient energy saving.

Description

Technical Field

[0001] The invention relates to the field of distribution box protection, and more specifically to a multi-level protection structure of an outdoor safety power distribution box. Background Art

[0002] The power distribution box, also known as the power control box, is a type of distribution box. The distribution box is divided into power distribution box and lighting distribution box, and is the final equipment of the power distribution system. A large number of electrical components are installed inside the distribution box, such as fuses, contactors, circuit breakers, inverters, etc. Due to the thermal effect of the current, these components will generate a lot of heat during long-term operation, especially products with inverters, which generate more heat. Electronic components are very sensitive to high temperatures. The temperature in the box is in a high temperature environment for a long time, which will not only cause the equipment components in the distribution box to age prematurely and shorten their service life, but also affect the normal operation of the components, and even cause them to burn out, causing accidents. Therefore, it is very necessary to do a good job of cooling and protecting the distribution box.

[0003] According to different heat dissipation methods, the commonly used distribution box cooling methods can be divided into the following three types:

[0004] 1. Closed-loop cooling: The air in the box circulates internally, and excess heat in the box is removed through external refrigeration equipment, such as air conditioners, heat exchangers, etc.

[0005] 2. Open-loop cooling: The box has openings that allow fresh, cold air to flow through the chassis to remove excess heat from the box, such as forced air cooling.

[0006] 3. Natural cooling: The heat in the cabinet is dissipated only through the casing, or through vents to assist in heat dissipation.

[0007] Closed-loop cooling control boxes are generally used in special environments, such as cement plants, flour mills, and highways. These environments contain a lot of dust. If the distribution box uses holes to dissipate heat, it will inevitably cause a lot of dust to accumulate inside the distribution box. These dusts adhere to the electrical components of the distribution box, which will cause a series of problems. For example, the dust contains conductive substances such as metal particles and carbon black. When these conductive substances are deposited on the circuit board, they will form a conductive channel between adjacent conductors, causing a short circuit fault. The deposition of dust will also affect the contact performance between conductors on the circuit board. When the dust forms an insulating layer between the conductors, it will cause poor contact or open circuit faults between the conductors, making the circuit on the circuit board unable to work properly, affecting the overall performance of the equipment.

[0008] If air conditioning is used to cool the distribution box, a large amount of electricity will be consumed, and the noise generated when the air conditioner is running may also interfere with the surrounding environment of the distribution box. When heat exchange is used for cooling protection, although the problem of excessive energy consumption can be solved, the heat exchange device used in the distribution box in the current technology has poor heat exchange effect and cannot perform good cooling and protection on the inside of the distribution box. For example, a distribution box with dustproof function disclosed in a Chinese patent, application number 202020361691.9 and a distribution box for construction, application number 202022791561.1, are disclosed in the above-mentioned public documents. Air cooling is used to cool the heat exchange components. If the outside world is in a high temperature environment, such as a hot summer, and air cooling is used to cool the heat exchange components at this time, the effect is minimal, and it is impossible to achieve cooling and protection of the inside of the distribution box.

[0009] In view of this, in order to address the above-mentioned deficiencies, the present invention improves and optimizes the temperature reduction protection of the outdoor power distribution box based on the above-mentioned technology, and develops a multi-level protection structure for an outdoor safety power distribution box. Summary of the invention

[0010] In view of the problems existing in the above-mentioned technology, the purpose of the present invention is to provide a multi-level protection structure for an outdoor safety power distribution box, which can realize the opening and closing of the condensing component and the circulation component through intelligent control, and automatically select the most suitable cooling mode according to the temperature difference detected by the first temperature sensor and the second temperature sensor. When the temperature difference meets the condensation condition, the natural evaporation and condensation process of liquid ammonia is used for heat exchange, without consuming electrical energy, thereby achieving efficient energy saving.

[0011] To solve the above problems, the present invention adopts the following technical solutions.

[0012] A multi-stage protection structure of an outdoor safety power distribution box, comprising a distribution box, a cooling box fixedly connected to the side wall of the distribution box, a side of the cooling box in contact with the distribution box penetrates the side wall of the distribution box and extends to the inside of the distribution box, a cooling liquid is stored in the cooling box, a condensation component is arranged above the cooling box, the condensation component uses the temperature difference between the inside and outside of the distribution box to cool the inside of the distribution box, a circulation component is arranged below the cooling box, the upper end of the circulation component extends into the cooling box, the circulation component uses the temperature difference between the inside and underground temperature to cool the inside of the distribution box, a control component is arranged on one side of the cooling box located inside the distribution box, if the above-ground temperature is lower than the underground temperature, the control component turns on the condensation component, if the above-ground temperature is higher than the underground temperature, the control component turns on the circulation component;

[0013] The condensing assembly includes an air duct, a plurality of groups of air ducts are fixedly connected to the upper end of the cooling box, and the interior of the air duct is interconnected with the interior of the cooling box. The upper end of the air duct is connected to a condensing pipe, and the condensing pipe is arranged in a vertical state.

[0014] Furthermore, a first fan blade is provided on the right side of the cooling box, a micro motor is installed at the right end of the first fan blade, a bracket rod is installed at the lower end of the micro motor, and the upper end of the bracket rod is fixedly connected to the inner wall of the distribution box.

[0015] Furthermore, the circulation component includes a liquid box, which is installed inside the cooling box. A rotating shaft is rotatably connected at the inner center position of the liquid box. The micromotor can drive the rotating shaft to rotate. The outer cylindrical surface of the rotating shaft is fixedly connected to a plurality of groups of evenly distributed first paddle blades. An end of the liquid box away from the micromotor is connected to a liquid inlet pipe, the interior of the liquid inlet pipe is interconnected with the liquid box, the liquid inlet pipe is fixedly connected to the inner wall of the cooling box, a groove is provided on the liquid inlet pipe for liquid to enter the interior of the liquid inlet pipe, a circulation pipe is connected to the lower end of the liquid box, an end of the circulation pipe away from the liquid box passes through the side wall of the cooling box, and is connected to the side wall of the cooling box after forming a loop, the loop portion of the circulation pipe is buried underground, a water tank is provided at the loop portion of the circulation pipe, and the loop portion of the circulation pipe is provided in the water tank.

[0016] Further, the control component includes a sealing plate, a sealing plate is arranged near the upper end of the cooling box, the right end of the sealing plate slides through the side wall of the cooling box and extends to the outside, the right end of the sealing plate is fixedly connected to a permanent magnet block, an electromagnet is arranged on the right side of the permanent magnet block, the electromagnet is fixedly connected to the inner wall of the distribution box, the right end of the sealing plate is also connected to a first spring, the right end of the first spring is fixedly connected to a fixed block, and the upper end of the fixed block is fixedly connected to the inner wall of the distribution box;

[0017] The left end of the first fan blade is fixedly connected to a first prismatic column sleeve, a prismatic column is sleeved inside the first prismatic column sleeve, a rotating disk is fixedly connected to the side surface of the prismatic column, a fixing ring is rotatably connected to the outer circumferential surface of the rotating disk, a connecting rod is fixedly connected to the upper end of the fixing ring, and the upper end of the connecting rod is fixedly connected to the sealing plate, a second prismatic column sleeve is provided at the left end of the prismatic column, and one end of the rotating shaft movably penetrates the side wall of the cooling box and is fixedly connected to the second prismatic column sleeve;

[0018] A first temperature sensor is installed on the upper outer wall of the distribution box, a second temperature sensor is installed on the inner wall of the water tank, a controller is installed in the distribution box, and the first temperature sensor, the second temperature sensor, the micro motor and the electromagnet are electrically connected to the controller.

[0019] Furthermore, the condensation assembly also includes a fixed cylinder, which is fixedly installed on the outer wall of the air duct near the upper end, and the upper end of the fixed cylinder is designed to be open. The interior of the fixed cylinder is fixedly connected with multiple groups of evenly distributed second springs, and the multiple groups of second springs are distributed in a ring shape. One end of the second spring away from the fixed cylinder is fixedly connected to the outer wall of the condensation tube, and a flexible tube is fixedly connected between the condensation tube and the air duct.

[0020] Furthermore, the condensing assembly also includes a heat sink, which is fixedly connected to the outer wall of the condensing tube. The heat sink is distributed in multiple groups and is made of heat-conductive elastic material. One end of the heat sink away from the condensing tube is fixedly connected to a counterweight.

[0021] Furthermore, a third temperature sensor is installed on the inner wall of the distribution box, a semiconductor refrigeration plate is fixedly connected to the outer wall of the cooling box, the cooling surface of the semiconductor refrigeration plate is connected to the cooling box, a heat sink is connected to the heating surface of the semiconductor refrigeration plate, and the semiconductor refrigeration plate, the third temperature sensor and the controller are electrically connected.

[0022] Furthermore, a drive box is connected to the loop portion of the circulation pipe, and a connecting shaft is rotatably connected inside the drive box. A plurality of groups of evenly distributed second paddle blades are fixedly connected to the outer circumferential surface of the connecting shaft, and the lower end of the connecting shaft movably passes through the drive box and is fixedly connected to the second fan blade.

[0023] Furthermore, a first ammonia sensor is installed on the inner wall of the distribution box, and a second ammonia sensor is installed on the outer wall of the distribution box. The first ammonia sensor and the second ammonia sensor are electrically connected to the controller.

[0024] Furthermore, a wireless transmitting module and a wireless receiving module are installed in the controller, and an antenna is installed on the upper outer wall of the distribution box.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] In this solution, when the temperature value detected by the first temperature sensor is lower than the temperature value detected by the second temperature sensor, the condensing component is turned on, and the liquid ammonia in the cooling box is evaporated by heat to form ammonia gas, and the ammonia gas flows upward to flow into the air duct, and flows into the condensing tube along the air duct, flows upward along the inside of the condensing tube, liquefies into small water droplets and adheres to the inner wall of the condensing tube, and the small water droplets flow downward along the inner wall of the condensing tube due to their own gravity, and finally flow into the cooling box, and the inside of the distribution box is cooled by heat exchange, and no noise is generated during the cooling process, and no electric energy is consumed, thereby saving energy;

[0027] When the temperature value detected by the first temperature sensor is higher than the temperature value detected by the second temperature sensor, the circulation component is turned on and the condensing component is closed. The liquid ammonia inside the liquid box will enter the circulation pipe. The liquid ammonia in the circulation pipe will flow along the circulation pipe. When passing through the water tank, the temperature in the water tank is low, and the liquid ammonia in the circulation pipe will be cooled. The cooled liquid ammonia will finally flow back to the cooling box. Through the continuous circulation of liquid ammonia, the temperature of the cooling box will be in a low temperature state. The air flow will be fanned by the first fan blade, and the cooling box will cool the inside of the distribution box. Cooling the inside of the distribution box in this way can avoid excessive noise and save energy.

[0028] This solution intelligently controls the opening and closing of the condensing component and the circulation component, and automatically selects the most appropriate cooling mode according to the temperature difference detected by the first temperature sensor and the second temperature sensor. When the temperature difference meets the condensation condition, the natural evaporation and condensation process of liquid ammonia is used for heat exchange without consuming electrical energy, thereby achieving efficient energy saving. When the temperature difference does not meet the condensation condition, the circulation cooling of liquid ammonia is achieved through the circulation component, which also achieves the purpose of energy saving. During the entire cooling process, no additional noise is generated, whether it is the evaporation and condensation of the condensing component or the circulation of liquid ammonia in the circulation component, thereby providing a quiet operating environment for the distribution box. At the same time, since there is no need to use electrically driven fans or compressors and other equipment, carbon emissions are also reduced, meeting environmental protection requirements.

[0029] Through sensor detection and intelligent control, the temperature inside the distribution box can be steadily reduced. The coordinated work of the condensing component and the circulation component makes the cooling process smoother, avoiding the impact of sudden temperature changes on the internal equipment of the distribution box, and realizing automatic temperature detection and automatic switching of cooling modes without manual intervention, reducing operation and maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0031] Figure 1 This is an appearance view of the overall structure of the present invention;

[0032] Figure 2 This is a diagram showing the interior of the power distribution box of the present invention;

[0033] Figure 3 For the present invention Figure 2 Magnified view at A in the middle;

[0034] Figure 4 It is a schematic structural diagram of the first prismatic column sleeve and the prismatic column of the present invention;

[0035] Figure 5 It is a schematic diagram of the structure inside the cooling box of the present invention;

[0036] Figure 6 It is a schematic diagram of the structure of the present invention located at the liquid inlet pipe;

[0037] Figure 7 It is a structural schematic diagram of the fixed cylinder of the present invention;

[0038] Figure 8 This is a diagram showing the appearance of the back side of the distribution box of the present invention;

[0039] Fig. 9 This is a disassembled diagram of the semiconductor cooling sheet and the radiator of the present invention;

[0040] Fig.10 It is a schematic diagram of the structure inside the water tank of the present invention;

[0041] Fig.11 It is a schematic diagram of the structure inside the drive box of the present invention.

[0042] Description of the numbers in the figure:

[0043] 1. Distribution box; 2. Cooling box; 3. Air duct; 4. Condenser; 5. Third temperature sensor; 6. Micro motor; 7. First fan blade; 8. First prismatic column sleeve; 9. Prismatic column; 10. Rotating plate; 11. Fixed ring; 12. Connecting rod; 13. Support rod; 14. Sealing plate; 15. Permanent magnet block; 16. Electromagnet; 17. First spring; 18. Fixed block; 19. Second prismatic column sleeve; 20. Liquid box; 21. Rotating shaft; 22. First paddle blade; 23. Feed Liquid pipe; 24, fixed tube; 25, flexible tube; 26, second spring; 27, heat sink; 28, counterweight; 29, first temperature sensor; 30, second temperature sensor; 31, water tank; 32, drive box; 33, connecting shaft; 34, second paddle blade; 35, second fan blade; 36, semiconductor refrigeration plate; 37, radiator; 38, first ammonia sensor; 39, second ammonia sensor; 40, antenna; 41, circulation pipe; 42, controller; 43, groove. DETAILED DESCRIPTION

[0044] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0045] See also Figures 1 to 11 , a multi-level protection structure of an outdoor safety power distribution box, comprising a distribution box 1, a cooling box 2 is fixedly connected to the side wall of the distribution box 1, a side of the cooling box 2 in contact with the distribution box 1 penetrates the side wall of the distribution box 1 and extends to the inside of the distribution box 1, a cooling liquid is stored in the cooling box 2, a condensation component is arranged above the cooling box 2, the condensation component uses the temperature difference between the inside and outside of the distribution box 1 to cool the inside of the distribution box 1, a circulation component is arranged below the cooling box 2, the upper end of the circulation component extends into the cooling box 2, the circulation component uses the temperature difference between the inside and underground temperature of the distribution box 1 to cool the inside of the distribution box 1, a control component is arranged on one side of the cooling box 2 located inside the distribution box 1, if the ground temperature is lower than the underground temperature, the control component turns on the condensation component, if the ground temperature is higher than the underground temperature, the control component turns on the circulation component;

[0046] The condensing component includes an air duct 3, and a plurality of groups of air ducts 3 are fixedly connected to the upper end of the cooling box 2, and the interior of the air duct 3 is interconnected with the interior of the cooling box 2; the upper end of the air duct 3 is connected to a condensing tube 4, and the condensing tube 4 is arranged in a vertical state. The condensing component also includes a fixed cylinder 24, and the fixed cylinder 24 is fixedly installed on the outer wall of the air duct 3 near the upper end. The upper end of the fixed cylinder 24 is open, and a plurality of groups of evenly distributed second springs 26 are fixedly connected to the interior of the fixed cylinder 24. The plurality of groups of second springs 26 are distributed in a ring shape, and one end of the second spring 26 away from the fixed cylinder 24 is fixedly connected to the outer wall of the condensing tube 4, and a flexible tube 25 is fixedly connected between the condensing tube 4 and the air duct 3; the condensing component also includes a heat sink 27, and the heat sink 27 is fixedly connected to the outer wall of the condensing tube 4. The heat sink 27 is distributed in a plurality of groups, and the heat sink 27 is made of a heat-conducting elastic material. A counterweight 28 is fixedly connected to one end of the heat sink 27 away from the condensing tube 4.

[0047] The electrical components inside the distribution box 1 will generate corresponding temperatures when working, causing the temperature inside the distribution box 1 to rise. The outdoor temperature is significantly lower than the temperature of the distribution box 1, especially at night or in winter, when the outdoor temperature is lower than the underground temperature. The control component turns on the condensation component, and the condensation component cools the inside of the distribution box 1. The cooling box 2 in the condensation component stores a cooling agent, and the cooling agent can be water, liquid ammonia, liquid butane, etc. The cooling agent in the cooling box 2 of the present invention is liquid ammonia, and the cooling box 2 is made of heat-conducting materials, such as copper, copper alloy materials, etc. The cooling box 2 located on one side of the distribution box 1 will absorb the heat inside the distribution box 1, and the liquid ammonia in the cooling box 2 will evaporate by heat to form ammonia gas, and the ammonia gas will flow upward and flow into the air guide Tube 3, and flow into condenser 4 along air guide tube 3, flow upward along the inside of condenser 4, condenser 4 is made of metal material, because the outside temperature is low, the inner wall temperature of condenser 4 is also very low, when ammonia flows upward along the inside of condenser 4, it will contact with the inner wall of condenser 4, and liquefy into small water droplets attached to the inner wall of condenser 4, the small water droplets will flow downward along the inner wall of condenser 4 due to their own gravity, and finally flow into cooling box 2, so that liquid ammonia is heated to become ammonia gas, ammonia gas is cooled to become liquid ammonia, and finally flows back to cooling box 2, and the inside of distribution box 1 is cooled by heat exchange, and no noise is generated during the cooling process, and no electric energy is consumed, thus saving energy.

[0048] When the wind blows the condenser 4, the condenser 4 will be tilted due to the wind force, and at the same time, the condenser 4 will squeeze the second spring 26. Because the wind force in nature is unstable, under the action of the unstable wind force and the second spring 26, the condenser 4 will swing. When the condenser 4 swings, the liquid ammonia droplets on the inner wall will be shaken, which will help the small water droplets to flow downward, and then quickly flow back into the cooling box 2 to achieve cooling of the cooling box 2, thereby ensuring the cooling effect of the cooling box 2 on the distribution box 1. In addition, the heat sink 27 and the counterweight 28 of the present invention are both made of heat-conducting metal materials. By providing the heat sink 27 and the counterweight 28, the contact area between the condenser 4 and the air can be increased, thereby improving the cooling effect of the outside world on the condenser 4, which helps to improve the efficiency of liquefying the gaseous ammonia in the condenser 4 into liquid ammonia. The heat sink 27 and the counterweight 28 also increase the contact area between the condenser 4 and the airflow, which is more conducive to the wind blowing the condenser 4. When the condenser 4 swings, the counterweight 28 will swing up and down, causing the condenser 4 to also have a vibration frequency of moving up and down, which is more conducive to the liquid ammonia droplets on the inner wall of the condenser 4 to flow downward.

[0049] In a preferred embodiment of the present invention, a first fan blade 7 is provided on the right side of the cooling box 2, a micro motor 6 is installed at the right end of the first fan blade 7, a bracket rod 13 is installed at the lower end of the micro motor 6, and the upper end of the bracket rod 13 is fixedly connected to the inner wall of the distribution box 1.

[0050] When the temperature inside the distribution box 1 is too high, the hot air will flow upward and gather at the top of the distribution box 1. The micro motor 6 will be turned on, and the micro motor 6 will drive the first fan blade 7 to rotate. When the first fan blade 7 rotates, it will fan the air on the top of the distribution box 1 to flow toward the cooling box 2, thereby cooling the hot air and realizing the air flow inside the distribution box 1, thereby accelerating the cooling efficiency inside the distribution box 1.

[0051] In a preferred embodiment of the present invention, the circulation component includes a liquid box 20, which is installed inside the cooling box 2. A rotating shaft 21 is rotatably connected at the inner center position of the liquid box 20. The micro motor 6 can drive the rotating shaft 21 to rotate. The outer cylindrical surface of the rotating shaft 21 is fixedly connected to multiple groups of evenly distributed first paddle blades 22. An end of the liquid box 20 away from the micro motor 6 is connected to a liquid inlet pipe 23. The interior of the liquid inlet pipe 23 is interconnected with the liquid box 20. The liquid inlet pipe 23 is fixedly connected to the inner wall of the cooling box 2. A groove 43 is provided on the liquid inlet pipe 23 for liquid to enter the interior of the liquid inlet pipe 23. A circulation pipe 41 is connected to the lower end of the liquid box 20. The end of the circulation pipe 41 away from the liquid box 20 passes through the side wall of the cooling box 2, and is connected to the side wall of the cooling box 2 after forming a loop. The loop part of the circulation pipe 41 is buried underground, and a water tank 31 is provided at the loop part of the circulation pipe 41. The loop part of the circulation pipe 41 is provided in the water tank 31.

[0052] The water tank 31 of the present invention is buried underground. The water tank 31 is filled with water. When the underground temperature is lower than the ground temperature, such as in summer, the circulation component can be turned on and the condensation component can be turned off by the control component. Then the micro motor 6 drives the rotating shaft 21 to rotate. When the rotating shaft 21 rotates, it drives the first paddle blade 22 to rotate in the liquid box 20, and drives the liquid ammonia inside the liquid box 20 to rotate. The liquid generates centrifugal force and enters the circulation pipe 41 under the action of the centrifugal force. At this time, the liquid ammonia in the cooling box 2 enters the liquid inlet pipe 23 through the groove 43, and finally enters the liquid box 20, so as to achieve Ammonia liquid is replenished in the liquid box 20. The above working principle is similar to the working principle of a water pump. The liquid ammonia in the circulation pipe 41 flows along the circulation pipe 41, and passes through the water tank 31. The temperature in the water tank 31 is low, and the liquid ammonia in the circulation pipe 41 will be cooled. The cooled liquid ammonia will finally flow back to the cooling box 2. Through the continuous circulation of liquid ammonia, the temperature of the cooling box 2 will be in a low temperature state. The first fan blade 7 drives the air to flow, and the cooling box 2 will cool the interior of the distribution box 1. Cooling the interior of the distribution box 1 in this way can avoid excessive noise and save energy.

[0053] In a preferred embodiment of the present invention, the control component includes a sealing plate 14, and a sealing plate 14 is arranged near the upper end of the cooling box 2. The right end of the sealing plate 14 slides through the side wall of the cooling box 2 and extends to the outside. The right end of the sealing plate 14 is fixedly connected to a permanent magnet block 15, and an electromagnet 16 is arranged on the right side of the permanent magnet block 15. The electromagnet 16 is fixedly connected to the inner wall of the distribution box 1. The right end of the sealing plate 14 is also connected to a first spring 17, and the right end of the first spring 17 is fixedly connected to a fixed block 18, and the upper end of the fixed block 18 is fixedly connected to the inner wall of the distribution box 1;

[0054] The left end of the first blade 7 is fixedly connected to a first prismatic column sleeve 8, a prismatic column 9 is sleeved inside the first prismatic column sleeve 8, a rotating disk 10 is fixedly connected to the side surface of the prismatic column 9, a fixing ring 11 is rotatably connected to the outer circumferential surface of the rotating disk 10, a connecting rod 12 is fixedly connected to the upper end of the fixing ring 11, and the upper end of the connecting rod 12 is fixedly connected to the sealing plate 14, a second prismatic column sleeve 19 is provided at the left end of the prismatic column 9, and one end of the rotating shaft 21 movably penetrates the side wall of the cooling box 2 and is fixedly connected to the second prismatic column sleeve 19;

[0055] A first temperature sensor 29 is installed on the upper outer wall of the distribution box 1, a second temperature sensor 30 is installed on the inner wall of the water tank 31, a controller 42 is installed in the distribution box 1, and the first temperature sensor 29, the second temperature sensor 30, the micro motor 6 and the electromagnet 16 are electrically connected to the controller 42.

[0056] The first temperature sensor 29 of the present invention is used to detect the temperature of the outside world, and the second temperature sensor 30 is used to detect the temperature of the underground. When the temperature value detected by the first temperature sensor 29 is higher than the temperature value detected by the second temperature sensor 30, it means that the underground temperature is lower than the temperature of the outside world. At this time, the controller 42 controls the electromagnet 16 to be energized, and the electromagnet 16 generates magnetism when it is energized. At this time, the adjacent surfaces of the electromagnet 16 and the permanent magnet block 15 are the same magnetic poles, and the permanent magnet block 15 is pushed to the left by the magnetic repulsion force. When the permanent magnet block 15 moves, it will drive the sealing plate 14 to move synchronously. When it moves, the sealing plate 14 will enter the interior of the cooling box 2, and finally the lower end of the air duct 3 will be blocked, so that ammonia will not enter the air duct 3, and the condensation component will be closed. The sealing plate 14 is The movement will also drive the connecting rod 12 to move. When the connecting rod 12 moves, it will drive the fixing ring 11 to move. The fixing ring 11 drives the rotating disk 10 to move to the left. The rotating disk 10 drives the prismatic column 9 to move to the left. The left end of the prismatic column 9 is designed to be gathered, which is convenient for the prismatic column 9 to enter the second prismatic column sleeve 19. The prismatic column 9 moving to the left will finally enter the second prismatic column sleeve 19. When the first fan blade 7 rotates, it will drive the first prismatic column sleeve 8 to rotate. When the first prismatic column sleeve 8 rotates, it will drive the prismatic column 9 and the rotating disk 10 to rotate. The rotating disk 10 rotates in the fixing ring 11. When the prismatic column 9 rotates, it will drive the second prismatic column sleeve 19 to rotate. When the second prismatic column sleeve 19 rotates, it will drive the rotating shaft 21 to rotate, so as to realize the opening of the circulation component.

[0057] When the temperature value detected by the first temperature sensor 29 is lower than the temperature value detected by the second temperature sensor 30, it means that the underground temperature is higher than the outside temperature. At this time, the controller 42 controls the electromagnet 16 to cut off the power, and the electromagnet 16 no longer generates magnetism. The electromagnet 16 no longer pushes the permanent magnet block 15 through the magnetic repulsion force. When the sealing plate 14 moves to the left, the sealing plate 14 pulls the first spring 17 to extend. After the electromagnet 16 is powered off, the contraction of the first spring 17 will pull the sealing plate 14 to move to the right. Finally, the sealing plate 14 no longer blocks the lower end opening of the air duct 3, thereby opening the condensation component. When the sealing plate 14 moves to the right, it will drive the prismatic column 9 to disengage from the second prismatic column sleeve 19 through the connecting rod 12, thereby closing the circulation component.

[0058] In a preferred embodiment of the present invention, a third temperature sensor 5 is installed on the inner wall of the distribution box 1, a semiconductor refrigeration plate 36 is fixedly connected to the outer wall of the cooling box 2, the cooling surface of the semiconductor refrigeration plate 36 is connected to the cooling box 2, and a heat sink 37 is connected to the heating surface of the semiconductor refrigeration plate 36. The semiconductor refrigeration plate 36, the third temperature sensor 5 and the controller 42 are electrically connected.

[0059] The third temperature sensor 5 is used to detect the temperature inside the distribution box 1. When the condensing component and the circulation component still cannot effectively cool down the inside of the distribution box 1, the third temperature sensor 5 detects that the temperature inside the distribution box 1 is too high, and the controller 42 will control the semiconductor refrigeration plate 36 to be energized. The cooling surface of the semiconductor refrigeration plate 36 will be cooled to achieve forced cooling of the temperature of the cooling box 2, thereby ensuring that the temperature inside the distribution box 1 is at an appropriate temperature. The radiator 37 is used to cool the heating surface of the semiconductor refrigeration plate 36.

[0060] In a preferred embodiment of the present invention, a drive box 32 is connected to the loop portion of the circulation pipe 41, and the internal rotation of the drive box 32 is connected to a connecting shaft 33, and a plurality of groups of evenly distributed second paddle blades 34 are fixedly connected to the outer circular surface of the connecting shaft 33, and the lower end of the connecting shaft 33 movably passes through the drive box 32 and is fixedly connected to the second fan blade 35.

[0061] The circulation pipe 41 located in the water tank 31 will heat the surrounding water, but the water in the water tank 31 far away from the circulation pipe 41 is still at a low temperature, and the cooling effect of the heated water on the circulation pipe 41 becomes worse. In the present invention, when the liquid in the circulation pipe 41 flows, it will push the second paddle blade 34 to rotate, thereby driving the connecting shaft 33 to rotate. When the connecting shaft 33 rotates, it will drive the second fan blade 35 to rotate. When the second fan blade 35 rotates, it will push the upper liquid to flow downward, thereby realizing the flow circulation of the water in the water tank 31, and the cooling treatment of the circulation pipe 41 is guaranteed by the flowing and circulating water.

[0062] In a preferred embodiment of the present invention, a first ammonia sensor 38 is installed on the inner wall of the distribution box 1, and a second ammonia sensor 39 is installed on the outer wall of the distribution box 1. The first ammonia sensor 38 and the second ammonia sensor 39 are electrically connected to a controller 42. A wireless transmitting module and a wireless receiving module are also installed in the controller 42. An antenna 40 is installed on the upper outer wall of the distribution box 1.

[0063] The first ammonia sensor 38 is used to detect ammonia in the distribution box 1, and the second ammonia sensor 39 is used to detect ammonia outside the distribution box 1. When the first ammonia sensor 38 and the second ammonia sensor 39 detect ammonia, it indicates that there is a leak in the cooling box 2. At this time, the controller 42 can control the alarm to sound. The alarm can be a buzzer. The order in which the first ammonia sensor 38 and the second ammonia sensor 39 detect ammonia can be used to determine whether the cooling box 2 is leaking outside the distribution box 1 or inside the distribution box 1. The concentration values ​​detected by the first ammonia sensor 38 and the second ammonia sensor 39 can also be used to determine whether the cooling box 2 is leaking. 2 is the leakage located outside the distribution box 1, or is the leakage located inside the distribution box 1. In addition, the controller 42 will send the information of ammonia leakage to the mobile terminal of the staff through the wireless transmission module, and also send the information of the leakage location to the mobile terminal of the staff. The controller 42 will also send the data detected by the first temperature sensor 29, the second temperature sensor 30 and the third temperature sensor 5 to the mobile terminal of the staff in real time. The staff can also send control commands through the mobile terminal. The wireless receiving module is used to receive the control commands sent by the mobile terminal, and the antenna 40 is used to enhance the signal of wireless interaction.

[0064] Working principle: When the temperature value detected by the first temperature sensor 29 is higher than the temperature value detected by the second temperature sensor 30, it means that the underground temperature is lower than the outside temperature. At this time, the controller 42 controls the electromagnet 16 to be energized, and the electromagnet 16 generates magnetism. At this time, the adjacent surfaces of the electromagnet 16 and the permanent magnet block 15 have the same magnetic poles, and the permanent magnet block 15 is pushed to the left by the magnetic repulsion. When the permanent magnet block 15 moves, it will drive the sealing plate 14 to move synchronously. When the sealing plate 14 moves, it will enter the interior of the cooling box 2, and finally the lower end of the air guide pipe 3 will be blocked, so that ammonia will not Entering into the air guide 3, the condensing assembly is closed, the sealing plate 14 will also drive the connecting rod 12 to move when it moves, and the connecting rod 12 will drive the fixing ring 11 to move when it moves, and the fixing ring 11 drives the rotating disk 10 to move to the left, and the rotating disk 10 drives the prismatic column 9 to move to the left, and the left end of the prismatic column 9 is designed to be gathered, so that the prismatic column 9 can enter the second prismatic column sleeve 19, and the prismatic column 9 moving to the left will finally enter the second prismatic column sleeve 19, and when the first fan blade 7 rotates, it will drive the first prismatic column sleeve 8 to rotate, and when the first prismatic column sleeve 8 rotates, it will drive the prismatic column 9 and the rotating disk 10 rotate, the rotating disk 10 rotates in the fixed ring 11, the prismatic column 9 will drive the second prismatic column sleeve 19 to rotate when rotating, and the second prismatic column sleeve 19 will drive the rotating shaft 21 to rotate when rotating, so as to realize the opening of the circulation component, and the rotating shaft 21 will drive the first paddle blade 22 to rotate in the liquid box 20 when rotating, and drive the liquid ammonia inside the liquid box 20 to rotate, and the liquid generates centrifugal force, and enters the circulation pipe 41 under the action of the centrifugal force, at this time, the liquid ammonia in the cooling box 2 enters the liquid inlet pipe 23 through the groove 43, and finally enters the liquid box 20, so as to realize the circulation of the liquid. Ammonia liquid is added to the liquid box 20. The above working principle is similar to the working principle of a water pump. The liquid ammonia in the circulation pipe 41 flows along the circulation pipe 41. When passing through the water tank 31, the temperature in the water tank 31 is low, and the liquid ammonia in the circulation pipe 41 is cooled. The cooled liquid ammonia finally flows back to the cooling box 2. Through the continuous circulation of liquid ammonia, the temperature of the cooling box 2 is in a low temperature state. The first fan blade 7 fans the air flow, and the cooling box 2 cools the inside of the distribution box 1. By cooling the inside of the distribution box 1 in this way, excessive noise can be avoided and energy can be saved at the same time.

[0065] When the temperature value detected by the first temperature sensor 29 is lower than the temperature value detected by the second temperature sensor 30, it means that the underground temperature is higher than the outside temperature. At this time, the controller 42 controls the electromagnet 16 to cut off the power, and the electromagnet 16 no longer generates magnetism. The electromagnet 16 no longer pushes the permanent magnet block 15 through the magnetic repulsion force. When the sealing plate 14 moves to the left, the sealing plate 14 pulls the first spring 17 to extend. After the electromagnet 16 is powered off, the first spring 17 contracts and pulls the sealing plate 14 to move to the right. Finally, the sealing plate 14 no longer blocks the lower end opening of the air guide pipe 3, so that the condensation component is opened. When the sealing plate 14 moves to the right, it will drive the prismatic column 9 to disengage from the second prismatic column sleeve 19 through the connecting rod 12, so as to close the circulation component. After the condensation component is opened, the liquid in the cooling box 2 The liquid ammonia will evaporate by heat to form ammonia gas, and the ammonia gas will flow upward and flow into the air duct 3, and then flow into the condenser 4 along the air duct 3, and flow upward along the inside of the condenser 4. Because the outside temperature is low, the inner wall temperature of the condenser 4 will also be very low. When the ammonia gas flows upward along the inside of the condenser 4, it will contact the inner wall of the condenser 4 and liquefy into small water droplets attached to the inner wall of the condenser 4. The small water droplets will flow downward along the inner wall of the condenser 4 due to their own gravity, and finally flow into the cooling box 2. In this way, the liquid ammonia is heated to become ammonia gas, and the ammonia gas is cooled to become liquid ammonia, and finally flows back to the cooling box 2. The interior of the distribution box 1 is cooled by heat exchange. No noise will be generated during the cooling process, and no electricity will be consumed, thereby saving energy.

[0066] The above are only preferred specific implementations of the present invention; however, the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and improved concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A multi-level protection structure for an outdoor safety power distribution box, comprising a distribution box (1), characterized in that: A cooling box (2) is fixedly connected to the side wall of the distribution box (1); a side of the cooling box (2) in contact with the distribution box (1) penetrates the side wall of the distribution box (1) and extends into the interior of the distribution box (1); a cooling liquid is stored in the cooling box (2); a condensation component is arranged above the cooling box (2); the condensation component uses the temperature difference between the inside and outside of the distribution box (1) to cool the inside of the distribution box (1); a circulation component is arranged below the cooling box (2); the upper end of the circulation component extends into the cooling box (2); the circulation component uses the temperature difference between the inside of the distribution box (1) and the underground temperature to cool the inside of the distribution box (1); a control component is arranged on one side of the cooling box (2) located inside the distribution box (1); if the aboveground temperature is lower than the underground temperature, the control component turns on the condensation component; if the aboveground temperature is higher than the underground temperature, the control component turns on the circulation component; A first fan blade (7) is provided on the right side of the cooling box (2); a micro motor (6) is mounted on the right end of the first fan blade (7); a support rod (13) is mounted on the lower end of the micro motor (6); and the upper end of the support rod (13) is fixedly connected to the inner wall of the distribution box (1); The circulation component comprises a liquid box (20), the liquid box (20) being installed inside the cooling box (2), a rotating shaft (21) being rotatably connected at the center position inside the liquid box (20), the micro motor (6) being capable of driving the rotating shaft (21) to rotate, a plurality of groups of evenly distributed first paddle blades (22) being fixedly connected to the outer circumferential surface of the rotating shaft (21), an end of the liquid box (20) away from the micro motor (6) being connected to a liquid inlet pipe (23), the interior of the liquid inlet pipe (23) being in communication with the liquid box (20), and the liquid inlet pipe (23) being in communication with the cooling box (20). The liquid box (20) is fixedly connected to the inner wall of the cooling box (2); the liquid inlet pipe (23) is provided with a groove (43) for allowing liquid to enter the liquid inlet pipe (23); the lower end of the liquid box (20) is connected to a circulation pipe (41); the end of the circulation pipe (41) away from the liquid box (20) passes through the side wall of the cooling box (2) to form a loop and is connected to the side wall of the cooling box (2); the loop portion of the circulation pipe (41) is buried underground; a water tank (31) is provided at the loop portion of the circulation pipe (41); and the loop portion of the circulation pipe (41) is provided in the water tank (31); The condensing assembly comprises an air guide pipe (3), a plurality of groups of air guide pipes (3) are fixedly connected to the upper end of the cooling box (2), the interior of the air guide pipe (3) is communicated with the interior of the cooling box (2), the upper end of the air guide pipe (3) is connected to a condensing pipe (4), and the condensing pipe (4) is arranged in a vertical state; The condensing assembly further comprises a fixed cylinder (24), the fixed cylinder (24) being fixedly mounted on the outer wall of the air guide tube (3) near the upper end, the upper end of the fixed cylinder (24) being designed to be open, a plurality of groups of evenly distributed second springs (26) being fixedly connected inside the fixed cylinder (24), the plurality of groups of second springs (26) being distributed in an annular shape, one end of the second spring (26) away from the fixed cylinder (24) being fixedly connected to the outer wall of the condensing tube (4), and a flexible tube (25) being fixedly connected between the condensing tube (4) and the air guide tube (3); The control component comprises a sealing plate (14), the sealing plate (14) being arranged near the upper end of the cooling box (2), the right end of the sealing plate (14) slidingly passing through the side wall of the cooling box (2) and extending to the outside, the right end of the sealing plate (14) being fixedly connected to a permanent magnet block (15), the right side of the permanent magnet block (15) being arranged with an electromagnet (16), the electromagnet (16) being fixedly connected to the inner wall of the distribution box (1), the right end of the sealing plate (14) being further connected to a first spring (17), the right end of the first spring (17) being fixedly connected to a fixing block (18), the upper end of the fixing block (18) being fixedly connected to the inner wall of the distribution box (1); The left end of the first blade (7) is fixedly connected to a first prismatic column sleeve (8), a prismatic column (9) is sleeved inside the first prismatic column sleeve (8), a rotating disk (10) is fixedly connected to the side surface of the prismatic column (9), a fixing ring (11) is rotatably connected to the outer circumferential surface of the rotating disk (10), a connecting rod (12) is fixedly connected to the upper end of the fixing ring (11), the upper end of the connecting rod (12) is fixedly connected to the sealing plate (14), a second prismatic column sleeve (19) is provided at the left end of the prismatic column (9), and one end of the rotating shaft (21) movably penetrates the side wall of the cooling box (2) and is fixedly connected to the second prismatic column sleeve (19); A first temperature sensor (29) is installed on the upper outer wall of the distribution box (1), a second temperature sensor (30) is installed on the inner wall of the water tank (31), a controller (42) is installed in the distribution box (1), and the first temperature sensor (29), the second temperature sensor (30), the micro motor (6) and the electromagnet (16) are electrically connected to the controller (42).

2. The multi-level protection structure of an outdoor safety power distribution box according to claim 1 is characterized in that: The condensing assembly further comprises a heat sink (27), wherein the heat sink (27) is fixedly connected to the outer wall of the condensing tube (4), the heat sink (27) is distributed in multiple groups, the heat sink (27) is made of a heat-conducting elastic material, and a counterweight (28) is fixedly connected to one end of the heat sink (27) away from the condensing tube (4).

3. The multi-level protection structure of an outdoor safety power distribution box according to claim 2 is characterized in that: A third temperature sensor (5) is installed on the inner wall of the distribution box (1); a semiconductor refrigeration sheet (36) is fixedly connected to the outer wall of the cooling box (2); a cooling surface of the semiconductor refrigeration sheet (36) is connected to the cooling box (2); a heat sink (37) is connected to the heating surface of the semiconductor refrigeration sheet (36); and the semiconductor refrigeration sheet (36), the third temperature sensor (5) and the controller (42) are electrically connected.

4. The multi-level protection structure of an outdoor safety power distribution box according to claim 3 is characterized in that: A drive box (32) is connected to the loop portion of the circulation pipe (41), the interior of the drive box (32) is rotatably connected to a connecting shaft (33), a plurality of groups of evenly distributed second paddle blades (34) are fixedly connected to the outer circumferential surface of the connecting shaft (33), and the lower end of the connecting shaft (33) movably penetrates the drive box (32) and is fixedly connected to the second fan blade (35).

5. The multi-level protection structure of an outdoor safety power distribution box according to claim 4 is characterized in that: A first ammonia sensor (38) is installed on the inner wall of the distribution box (1), and a second ammonia sensor (39) is installed on the outer wall of the distribution box (1). The first ammonia sensor (38), the second ammonia sensor (39) and the controller (42) are electrically connected.

6. The multi-level protection structure of an outdoor safety power distribution box according to claim 5, characterized in that: A wireless transmitting module and a wireless receiving module are also installed in the controller (42), and an antenna (40) is installed on the upper outer wall of the distribution box (1).

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