Prefabricated transformer substation applied to intelligent power internet of things

Abstract

The invention relates to the technical field of transformer substations, and discloses a prefabricated transformer substation applied to an intelligent power internet of things, which comprises a box-type transformer substation and a heat dissipation fan, the heat dissipation fan is rotatably connected to the outer wall of the box-type transformer substation, and the outer wall of the box-type transformer substation is provided with a heat dissipation assembly for dissipating heat of the auxiliary heat dissipation fan. The box-type transformer substation is internally provided with the short circuit prevention assembly for improving the safety, through the arrangement of the heat dissipation assembly, the purpose of improving the cooling efficiency of the heat dissipation fan in a physical mode is achieved, and compared with a traditional prefabricated transformer substation adopting the heat dissipation fan for heat dissipation, heat dissipation of the traditional heat dissipation fan only simply exhausts hot air, and the heat dissipation efficiency is greatly improved. Compared with the prior art, the box-type transformer substation has the advantages that the temperature inside the box-type transformer substation can be reduced more effectively through an ingenious airflow guide and convection cooling mechanism, energy consumption and operation cost are reduced during long-term operation, and equipment aging, damage and faults caused by high temperature of the box-type transformer substation are reduced.

Description

Technical Field

[0001] The present invention relates to the field of substations, and particularly to a prefabricated substation applied to the intelligent power Internet of Things. Background Art

[0002] A prefabricated substation applied to the intelligent power Internet of Things is an outdoor compact power distribution device that integrates high-voltage switchgear, distribution transformers, and low-voltage distribution devices according to a certain wiring scheme and is prefabricated in a factory. At the same time, it can be flexibly configured according to different user needs and application scenarios. For example, transformers with different capacities can be selected according to the user's power consumption requirements, and different types of high-voltage switchgear can be selected according to the wiring mode of the power grid.

[0003] At present, there are many drawbacks in the heat dissipation of existing prefabricated substations on the market. Firstly, in terms of heat dissipation effect, traditional prefabricated substations use cooling fans for heat dissipation, which can often only achieve relatively simple hot air discharge and cannot effectively process and recycle the discharged hot air. This makes it difficult to quickly and effectively reduce the temperature inside the substation in high-temperature environments or under high-load operation. For example, in summer high-temperature weather, the cooling fans cannot timely discharge a large amount of heat generated inside, resulting in too high equipment temperature, affecting the performance and lifespan of electrical equipment. At the same time, insufficient heat dissipation will also cause equipment failures, such as transformer overheating, switch tripping, etc., seriously affecting the reliability and stability of the power system. In terms of energy conservation and environmental protection, traditional heat dissipation methods directly discharge hot air into the external environment, causing a large amount of heat energy waste.

[0004] During the operation of a prefabricated substation, many high-voltage devices need to be placed inside, which is extremely prone to short-circuit situations. The sparks generated when a short circuit occurs are likely to cause fires. The short-circuit protection mechanisms of existing prefabricated substations on the market often respond slowly. When a short-circuit fault occurs inside, the short-circuit current cannot be cut off in the first time, allowing the short-circuit current to persist for a period of time. This will not only cause serious damage to electrical equipment but also trigger safety accidents such as fires. Moreover, the short-circuit protection devices of traditional prefabricated substations have situations of misoperation or incomplete action. Sometimes, the short-circuit protection is mis-triggered under normal operating conditions, resulting in unnecessary power outages. And when a real short-circuit fault occurs, the short-circuit current cannot be completely cut off, expanding the scope of the fault. This inaccurate protection mechanism brings great uncertainties to the stable operation of the power system. In addition, when a short-circuit fault occurs in a traditional prefabricated substation, sparks are easily generated. Due to the lack of effective protection measures, these sparks will cause fires, posing a serious threat to the environment and personnel safety around the substation. Moreover, once a fire occurs, it is difficult to extinguish and is likely to cause greater losses.

[0005] Therefore, it is necessary to provide a prefabricated substation applied to the intelligent power Internet of Things, aiming to solve the above problems. Summary of the Invention

[0006] Aiming at the deficiencies of the existing technology, the purpose of the present invention is to provide a prefabricated substation applied to the intelligent power Internet of Things.

[0007] To achieve the above purpose, the present invention provides the following technical solution: A prefabricated substation applied to the intelligent power Internet of Things, including a box-type substation and a cooling fan, the cooling fan is rotatably connected to the outer wall of the box-type substation, the outer wall of the box-type substation is provided with a heat dissipation component for dissipating heat from the auxiliary cooling fan, and the inside of the box-type substation is provided with a short-circuit prevention component for improving safety.

[0008] Preferably, the heat dissipation component includes an extension plate, the extension plate is fixedly connected to the outer wall of the box-type substation, an arc-shaped positioning block is fixedly connected to the side of the extension plate away from the box-type substation, funnel-shaped ventilation grooves are opened inside the extension plate and the arc-shaped positioning block, and a spacer ring is fixedly connected inside the arc-shaped positioning block.

[0009] Preferably, the heat dissipation component further includes a ventilation pipe, the ventilation pipe is fixedly connected to the inside of the spacer ring, inclined holes are annularly opened inside the ventilation pipe, a delivery pipe is fixedly connected to the top of the ventilation pipe, a gas blocking plug is fixedly connected to the bottom of the ventilation pipe, and there is a gap between the gas blocking plug and the inner wall of the ventilation pipe.

[0010] Preferably, the short-circuit prevention component includes a square groove, the square groove is opened at the bottom of the box-type substation, a rotating disc is rotatably connected to the top of the square groove, a connecting rod is rotatably connected to the inside of the rotating disc, an arc-shaped block is rotatably connected to the end of the connecting rod away from the rotating disc, a conductive sheet is rotatably connected to the bottom of the square groove, connecting rods are rotatably connected to the bottoms of the conductive sheet and the arc-shaped block, and a first return spring is fixedly connected between the two connecting rods.

[0011] Preferably, the short-circuit prevention component further includes an L-shaped insulating plate, the L-shaped insulating plate is fixedly connected to the top of the square groove, a square clamping plate is fixedly connected to the bottom of the L-shaped insulating plate, a second return spring is fixedly connected between the square clamping plate and the connecting rod, an impact pin is slidably connected to the top of the L-shaped insulating plate, a third return spring is fixedly connected to the outer wall of the impact pin, and the end of the third return spring away from the impact pin is fixedly connected to the L-shaped insulating plate.

[0012] Preferably, the short-circuit prevention component further includes a magnetic coil, the magnetic coil is sleeved outside the impact pin and the third return spring, a metal conductive block is fixedly connected to the bottom of the L-shaped insulating plate, and an arc extinguishing block is fixedly connected to the top of the square groove.

[0013] Preferably, the extension plate communicates with the funnel-shaped ventilation groove of the arc-shaped positioning block.

[0014] Preferably, the arc-shaped block is rotatably connected to the inside of the square groove, and the arc extinguishing block is arranged above the conductive sheet and the metal conductive block.

[0015] Preferably, the magnetic coil, the metal conductive block and the conductive sheet form an electrical circuit path, and there is an electrical connection relationship between the magnetic coil and the power supply used by the device.

[0016] A prefabricated substation applied to the intelligent power Internet of Things provided by the present invention has the following beneficial effects compared with the prior art: 1. Through the setting of the heat dissipation component, when the heat dissipation fan discharges the hot air inside the box-type substation, the heat dissipation fan will discharge the hot air generated inside the box-type substation to the outside of the ventilation pipe through the funnel-shaped ventilation groove, so that the hot air flows into the inside of the ventilation through the gap between the spacer ring and the ventilation pipe. During this process, when the hot air passes through the inclined holes, part of the heat flow flows out of the gap between the air blocking plug and the ventilation pipe in a spiral shape along the wall of the ventilation pipe and is discharged from the inside of the box-type substation. Subsequently, the remaining hot air is blocked by the air blocking plug and flows in the opposite spiral flow mode. During this process, due to the energy loss of the hot air and the discharged hot air and the remaining hot air forming convection, the part of the hot air is quickly cooled. Then, the cooled air flow is re-introduced into the inside of the box-type substation through the conveying pipe, so as to achieve the purpose of improving the cooling efficiency of the heat dissipation fan by physical means; Among them, compared with the traditional prefabricated substation using a heat dissipation fan for heat dissipation, the traditional heat dissipation fan often simply discharges the hot air, lacking further treatment and recycling of the hot air. The above design can more effectively reduce the temperature inside the box-type substation through a clever air flow guiding and convection cooling mechanism. For example, in the hot summer or during high-load operation, the traditional heat dissipation method is difficult to quickly reduce the temperature, while this design can quickly control the internal temperature within a reasonable range to ensure the normal operation of the equipment. At the same time, the traditional heat dissipation fan has problems of uneven heat dissipation and low efficiency. The new design optimizes the air flow path and uses the convection principle to make the heat dissipation more uniform and efficient, which means that the equipment can operate at a higher load, reducing failures and downtime caused by overheating, and improving the reliability and stability of the substation; Secondly, the traditional heat dissipation method usually directly discharges the hot air into the external environment, wasting a large amount of heat energy. The above design reduces the waste of energy by recycling the cooled air flow and using physical principles. In the long-term operation, it reduces the energy consumption and operation cost, and reduces the equipment aging, damage and failures of the box-type substation caused by high temperature.

[0017] 2. Through the setting of the short - circuit prevention component, during the operation of the box - type substation, the short - circuited circuit inside will cause the impact pin to strike the arc - shaped block through the magnetic force generated by the magnetic coil. As a result, the conductive sheet will be separated from the metal conductive block, thus preventing the short - circuit current from generating sparks and causing a fire. Compared with traditional pre - installed substations, when the conductive sheet and the metal conductive block are separated by impact, the path of the short - circuit current is cut off. This disconnection method is accurate and reliable, ensuring that the short - circuit current cannot continue to flow. In contrast, traditional protection devices are uncertain when disconnecting short - circuit currents, such as incomplete disconnection or misoperation. At the same time, traditional pre - installed substations are prone to generating sparks during short - circuits, which can then trigger a fire, causing serious damage to equipment and the surrounding environment. This device can cut off the source of spark generation at the initial stage of short - circuit, effectively avoiding major safety accidents such as fires and improving the safety of the substation.

[0018] However, traditional pre - installed substations have a problem of relatively long response time in short - circuit protection. The above - mentioned design can quickly activate the protection mechanism at the moment of short - circuit, greatly reducing the duration of the short - circuit current. Moreover, reliable short - circuit protection helps to improve the stability of the entire power system. When a short - circuit occurs in the box - type substation, it will not have too much impact on the upstream power grid and other users, ensuring the continuity and reliability of power supply. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 Schematic diagram of the positional relationship of the overall device of the present invention; Figure 2 Cross - sectional view of the overall device of the present invention; Figure 3 For the present invention Figure 2 Enlarged view of the structure at A in Figure 4 For the present invention Figure 2 Enlarged view of the structure at B in Figure 5 Schematic diagram of the positional relationship between the box - type substation and the heat - dissipation component of the present invention; Figure 6 Schematic diagram of the positional relationship of the heat - dissipation component of the present invention; Figure 7 Schematic diagram of the positional relationship of the short - circuit prevention component of the present invention; Figure 8 For the present invention Figure 7 Enlarged view of the structure at C in Figure 9 Schematic diagram of the positional relationship among the L - shaped insulating plate, impact pin, and third return spring of the present invention.

[0020] Reference numerals: 11, box - type substation; 12, cooling fan; The heat dissipation component includes: 21, an extended distance plate; 22, an arc-shaped positioning block; 23, a funnel-shaped ventilation groove; 24, a spacer ring; 25, a ventilation pipe; 26, an inclined hole; 27, a delivery pipe; 28, a gas blocking plug; The short-circuit prevention component includes: 31, a square groove; 32, a rotating disk; 33, a connecting rod; 34, an arc-shaped block; 35, a conductive sheet; 36, a connecting rod; 37, a first return spring; 38, an L-shaped insulating plate; 39, a square clamping plate; 310, a second return spring; 311, an impact needle; 312, a third return spring; 313, a magnetic coil; 314, a metal conductive block; 315, an arc extinguishing block. Specific implementation mode

[0021] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0022] In the description of the present invention, the orientation or positional relationship indicated by the terms "center", "transverse", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention.

[0023] The following describes the specific implementation of the present invention in detail with reference to specific embodiments.

[0024] Embodiment example Figures 1 to 9 As shown, a prefabricated substation applied to the intelligent power Internet of Things provided by an embodiment of the present invention includes a box-type substation 11 and a cooling fan 12. The cooling fan 12 is rotatably connected to the outer wall of the box-type substation 11. A heat dissipation component for dissipating heat from the auxiliary cooling fan 12 is provided on the outer wall of the box-type substation 11. A short-circuit prevention component for improving safety is provided inside the box-type substation 11.

[0025] The heat dissipation component includes an extended distance plate 21. The extended distance plate 21 is fixedly connected to the outer wall of the box-type substation 11. An arc-shaped positioning block 22 is fixedly connected to the side of the extended distance plate 21 away from the box-type substation 11. Funnel-shaped ventilation grooves 23 are formed inside both the extended distance plate 21 and the arc-shaped positioning block 22. A spacer ring 24 is fixedly connected inside the arc-shaped positioning block 22.

[0026] The heat dissipation component further includes a ventilation pipe 25. The ventilation pipe 25 is fixedly connected to the inner side of the spacer ring 24. An inclined hole 26 is annularly formed inside the ventilation pipe 25. A delivery pipe 27 is fixedly connected to the top of the ventilation pipe 25. An air blocking plug 28 is fixedly connected to the bottom of the ventilation pipe 25, and there is a gap between the air blocking plug 28 and the inner wall of the ventilation pipe 25.

[0027] The distance increasing plate 21 communicates with the funnel-shaped ventilation groove 23 of the arc-shaped positioning block 22, so that the hot air discharged by the heat dissipation fan 12 can enter the inside of the arc-shaped positioning block 22.

[0028] The short-circuit prevention component includes a square groove 31. The square groove 31 is formed in the bottom of the box-type substation 11. A rotating disk 32 is rotatably connected to the top of the square groove 31. A connecting rod 33 is rotatably connected to the inside of the rotating disk 32. One end of the connecting rod 33 away from the rotating disk 32 is rotatably connected to an arc-shaped block 34. A conductive sheet 35 is rotatably connected to the bottom of the square groove 31. Connecting rods 36 are rotatably connected to the bottoms of the conductive sheet 35 and the arc-shaped block 34 respectively. A first return spring 37 is fixedly connected between the two connecting rods 36.

[0029] The short-circuit prevention component further includes an L-shaped insulating plate 38. The L-shaped insulating plate 38 is fixedly connected to the top of the square groove 31. A square clamping plate 39 is fixedly connected to the bottom of the L-shaped insulating plate 38. A second return spring 310 is fixedly connected between the square clamping plate 39 and the connecting rod 33. An impact pin 311 is slidably connected to the top of the L-shaped insulating plate 38. A third return spring 312 is fixedly connected to the outer wall of the impact pin 311. One end of the third return spring 312 away from the impact pin 311 is fixedly connected to the L-shaped insulating plate 38.

[0030] The short-circuit prevention component further includes a magnetic coil 313. The magnetic coil 313 is sleeved outside the impact pin 311 and the third return spring 312. A metal conductive block 314 is fixedly connected to the bottom of the L-shaped insulating plate 38. An arc extinguishing block 315 is fixedly connected to the top of the square groove 31.

[0031] The arc-shaped block 34 is rotatably connected to the inside of the square groove 31. The arc extinguishing block 315 is arranged above the conductive sheet 35 and the metal conductive block 314. The arc generated when the conductive sheet 35 and the metal conductive block 314 are separated will enter the inside of the arc extinguishing block 315.

[0032] The magnetic coil 313, the metal conductive block 314 and the conductive sheet 35 form an electrical circuit path, so that current flows through the inside of the magnetic coil 313, the metal conductive block 314 and the conductive sheet 35. And there is an electrical connection relationship between the magnetic coil 313 and the power supply used by the equipment. When a short circuit occurs inside the box-type substation 11, the magnetic coil 313 will be triggered to generate a strong magnetic field.

[0033] Working principle: In the initial state, the conductive sheet 35 abuts against the metal conductive block 314, the first return spring 37 is not stretched, the second return spring 310 is stretched, and the third return spring 312 is not compressed.

[0034] During operation, when the box-type substation 11 dissipates heat through the cooling fan 12, since the distance-increasing plate 21 and the arc-shaped positioning block 22 are both provided with funnel-shaped ventilation grooves 23 inside, and the funnel-shaped ventilation grooves 23 of the distance-increasing plate 21 and the arc-shaped positioning block 22 are connected, the cooling fan 12 will send the hot air inside the box-type substation 11 into the inside of the arc-shaped positioning block 22 through the funnel-shaped ventilation groove 23. Since there is a spacer ring 24 between the ventilation pipe 25 and the arc-shaped positioning block 22, the hot air will flow along the outer wall of the ventilation pipe 25, and then the hot air will flow into the inside of the ventilation pipe 25 in a spiral shape. During this process, the air flowing into the inside of the ventilation pipe 25 in a spiral shape will pass through the inclined holes 26, and then the hot air will flow in a spiral shape inside the ventilation pipe 25. Since there is a gap between the air-blocking plug 28 and the inner wall of the ventilation pipe 25, part of the heat flow will flow out from the gap between the air-blocking plug 28 and the ventilation pipe 25 along the pipe wall of the ventilation pipe 25 in a spiral shape, and is discharged from the inside of the box-type substation 11. Subsequently, the remaining hot air will flow in the opposite spiral flow mode due to the blockage of the air-blocking plug 28. During this process, due to the energy loss of the hot air and the discharged hot air and the remaining hot air forming a convection, the temperature of this part of the hot air is rapidly reduced. Then, the cooled air flow of this part will flow back into the inside of the box-type substation 11 through the conveying pipe 27, so as to achieve the purpose of improving the cooling efficiency of the cooling fan 12 by physical means. Compared with the traditional prefabricated substation using the cooling fan 12 for heat dissipation, the traditional cooling fan 12 for heat dissipation often simply discharges the hot air, lacking further treatment and recycling of the hot air. However, the above design can more effectively reduce the temperature inside the box-type substation 11 through a clever air flow guiding and convection cooling mechanism. For example, in hot summer or high-load operation, the traditional heat dissipation method is difficult to quickly reduce the temperature, while this design can quickly control the internal temperature within a reasonable range to ensure the normal operation of the equipment. Secondly, the above design reduces energy waste by recycling the cooled air flow, using physical principles. In the long-term operation, it reduces energy consumption and operation costs, and reduces equipment aging, damage and failures of the box-type substation 11 caused by high temperature.

[0035] When a short circuit occurs inside the box-type substation 11, the current inside the box-type substation 11 will rapidly increase to ten to a hundred times that of a normal circuit within a few milliseconds. Since the magnetic coil 313, the metal conductive block 314, and the conductive sheet 35 form a circuit path, and there is an electrical connection between the magnetic coil 313 and the power supply used by the device, the rapidly increasing current at this time will cause the magnetic coil 313 to generate a strong magnetic field. The magnitude of the magnetic force of the magnetic coil 313 is proportional to the magnetic field strength. The stronger the magnetic field, the greater the magnetic force generated by the magnetic coil 313 on the impact pin 311. When the magnetic force generated by the magnetic coil 313 increases to a level sufficient to overcome the resistance of the third return spring 312 received by the impact pin 311, the strong magnetic field generated by the magnetic coil 313 at this time will pull the impact pin 311 to compress the third return spring 312. At the same time, the impact pin 311 will slide along the bottom of the L-shaped insulating plate 38, and the bottom of the impact pin 311 will contact the arc-shaped block 34 and rotate; At this time, because the arc-shaped block 34 is impacted by the impact pin 311, the end of the arc-shaped block 34 away from the impact pin 311 will pull the rotating disk 32 to rotate through the connecting rod 33. At the same time, the second return spring 310 rapidly elastically contracts. Since the connecting rod 33 is eccentrically rotationally connected to the inside of the rotating disk 32, the second return spring 310 then synchronously pulls the rotating disk 32 to rotate through the connecting rod 33; During the rotation of the arc-shaped block 34, the arc-shaped block 34 will stretch the first return spring 37 through the connecting rod 36. During the stretching process of the first return spring 37, it will pull the conductive sheet 35 to rotate through the connecting rod 36 at the bottom of the conductive sheet 35, and finally cause the conductive sheet 35 to rotate away from the metal conductive block 314 along the bottom of the square groove 31, so that the conductive sheet 35 and the metal conductive block 314 are separated from each other. Thus, when a short circuit occurs in the box-type substation 11, the internal circuit of the box-type substation 11 is automatically disconnected; In addition, when the box-type substation 11 is operating normally, the normal current inside the box-type substation 11 cannot make the magnetic field generated by the magnetic coil 313 overcome the tension of the third return spring 312, and thus cannot trigger the rotation of the arc-shaped block 34; When the conductive sheet 35 and the metal conductive block 314 are separated from each other, an arc will be generated between the conductive sheet 35 and the metal conductive block 314. Since an arc is a kind of plasma, it has the characteristics of high temperature and low density. At the same time, affected by the surrounding gas convection and electrodynamic force, when the arc is generated, it heats the surrounding air, causing this air to become hot and light, forming an upward heat flow. This heat flow carries the arc and moves upward together. And the arc extinguishing block 315 is arranged above the conductive sheet 35 and the metal conductive block 314. Therefore, during the process of separating the conductive sheet 35 and the metal conductive block 314, the arc will gradually flow into the interior of the arc extinguishing block 315. Since the arc extinguishing block 315 is composed of parallel plates with small intervals, and the resistance increases with the increase of length and decreases with the increase of area, the arc entering the interior of the arc extinguishing block 315 will be divided into small pieces, and the energy of the small piece arcs is relatively low. At the same time, the arc extinguishing block 315 will also absorb the energy of the arc, and finally the arc inside the arc extinguishing block 315 gradually disappears; During the operation of the box-type substation 11, the short-circuited circuit inside it will generate a magnetic force through the magnetic coil 313 to make the impact pin 311 impact the arc-shaped block 34, thereby causing the conductive sheet 35 and the metal conductive block 314 to be separated from each other, and thus avoiding the short-circuit current from generating sparks and causing a fire. Compared with the traditional prefabricated substation, the conductive sheet 35 and the metal conductive block 314 are separated from each other under the impact, cutting off the path of the short-circuit current. This disconnection method is accurate and reliable, and can ensure that the short-circuit current cannot continue to flow. However, the traditional protection device has uncertainty when disconnecting the short-circuit current, such as incomplete disconnection or misoperation. At the same time, the traditional prefabricated substation is prone to generate sparks during a short circuit, thereby triggering a fire and causing serious damage to the equipment and the surrounding environment. This device can cut off the source of spark generation at the initial stage of the short circuit, effectively avoid the occurrence of major safety accidents such as fires, and improve the safety of the substation.

[0036] For those skilled in the art, although several embodiments and examples of the present invention are described, these embodiments and examples are presented as examples and are not intended to limit the scope of the invention. These new embodiments can be implemented in various other ways, and various omissions, substitutions, and changes can be made without departing from the gist of the invention. These embodiments and their deformations are included in the scope and gist of the invention, and are included in the invention described in the claims and its equivalent scope.

[0037] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A prefabricated substation applied to the intelligent power Internet of Things, comprising a box-type substation (11) and a cooling fan (12), wherein the cooling fan (12) is rotatably connected to the outer wall of the box-type substation (11), and is characterized in that, The outer wall of the box-type substation (11) is provided with a heat dissipation component for dissipating heat from the auxiliary heat dissipation fan (12), and the interior of the box-type substation (11) is provided with an anti-short-circuit component for improving safety.

2. The prefabricated substation applied to the intelligent power Internet of Things according to claim 1, characterized in that, The heat dissipation assembly includes a distance increasing plate (21), the distance increasing plate (21) is fixedly connected to the outer wall of the box-type substation (11), the side of the distance increasing plate (21) away from the box-type substation (11) is fixedly connected to an arc-shaped positioning block (22), the interiors of the distance increasing plate (21) and the arc-shaped positioning block (22) are both provided with funnel-shaped ventilation slots (23), and the interior of the arc-shaped positioning block (22) is fixedly connected to a spacer ring (24).

3. The prefabricated substation applied to the intelligent power Internet of Things according to claim 2, characterized in that, The heat dissipation assembly further includes a vent pipe (25), the vent pipe (25) being fixedly connected to the inner side of the spacer ring (24), the interior of the vent pipe (25) being annularly provided with an inclined hole (26), the top of the vent pipe (25) being fixedly connected to a delivery pipe (27), the bottom of the vent pipe (25) being fixedly connected to an air blocking plug (28), and a gap being provided between the air blocking plug (28) and the inner wall of the vent pipe (25).

4. The prefabricated substation applied to the intelligent power Internet of Things according to claim 1, characterized in that, The anti-short-circuit component includes a square groove (31), the square groove (31) is opened at the bottom of the box-type substation (11), the top of the square groove (31) is rotatably connected to a rotating disk (32), the interior of the rotating disk (32) is rotatably connected to a connecting rod (33), the end of the connecting rod (33) away from the rotating disk (32) is rotatably connected to an arc block (34), the bottom of the square groove (31) is rotatably connected to a conductive sheet (35), the bottoms of the conductive sheet (35) and the arc block (34) are both rotatably connected to a connecting rod (36), and a first reset spring (37) is fixedly connected between the two connecting rods (36).

5. The prefabricated substation applied to the intelligent power Internet of Things according to claim 4, characterized in that, The anti-short circuit assembly also includes an L-shaped insulating plate (38), the L-shaped insulating plate (38) is fixedly connected to the top of the square groove (31), the bottom of the L-shaped insulating plate (38) is fixedly connected to a square clamping plate (39), a second return spring (310) is fixedly connected between the square clamping plate (39) and the connecting rod (33), the top of the L-shaped insulating plate (38) is slidably connected to a striking pin (311), the outer wall of the striking pin (311) is fixedly connected to a third return spring (312), and one end of the third return spring (312) away from the striking pin (311) is fixedly connected to the L-shaped insulating plate (38).

6. The prefabricated substation applied to the intelligent power Internet of Things according to claim 5, characterized in that, The anti-short circuit assembly further includes a magnetic coil (313), which is sleeved on the outside of the striking pin (311) and the third reset spring (312); a metal conductive block (314) is fixedly connected to the bottom of the L-shaped insulating plate (38); and an arc extinguishing block (315) is fixedly connected to the top of the square slot (31).

7. The prefabricated substation applied to the intelligent power Internet of Things according to claim 2, characterized in that, The distance increasing plate (21) is connected to the funnel-shaped ventilation slot (23) of the arc-shaped positioning block (22).

8. The prefabricated substation applied to the intelligent power Internet of Things according to claim 6, characterized in that, The arc block (34) is rotatably connected to the inside of the square slot (31), and the arc extinguishing block (315) is arranged above the conductive sheet (35) and the metal conductive block (314).

9. The prefabricated substation applied to the intelligent power Internet of Things according to claim 6, wherein, The magnetic coil (313), the metal conductive block (314), and the conductive sheet (35) form a circuit path, and there is an electrical connection relationship between the magnetic coil (313) and the power supply used by the device.

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