Anti-overload heat dissipation type power distribution transformer

Abstract

This invention discloses an overload-resistant heat dissipation distribution transformer, comprising a transformer body with multiple heat dissipation pipes at both ends. The upper and lower ends of each heat dissipation pipe are connected to a manifold, which is interconnected with the transformer body. A heat dissipation cleaning component is slidably connected to the heat dissipation pipe, and a water storage component is installed on the upper manifold. A reciprocating screw is driven to the heat dissipation cleaning component. This device features fully automatic reciprocating pipe wall cleaning, relying on the reciprocating screw to drive the heat dissipation cleaning component to continuously move up and down. Through symmetrically arranged cleaning rings and cleaning cotton, it achieves full-stroke, dead-angle-free descaling of the heat dissipation pipe. Combined with a spring-loaded elastic contact structure and end-beveled anti-scratch design, it can continuously remove dust, oil, and stubborn dirt from the pipe wall without damaging the equipment structure, thoroughly solving the problems of easy scale accumulation and gradual decline in heat dissipation efficiency in traditional distribution transformer heat dissipation pipes.

Description

Technical Field

[0001] This invention relates to the field of transformer heat dissipation technology, specifically to an overload-resistant heat dissipation distribution transformer. Background Technology

[0002] As the core substation and power supply equipment in the power distribution system, the stability of the operation and the heat dissipation performance of the distribution network directly determine the power supply quality and equipment lifespan. Currently, most traditional overload-resistant heat dissipation distribution transformers on the market adopt a heat dissipation structure that combines heat pipes with natural air cooling and cooling oil circulation. This structure has obvious technical defects during long-term outdoor operation and cannot meet the requirements of complex working conditions and long-term stable operation.

[0003] On the one hand, the heat dissipation pipes of existing distribution transformers are exposed to the outdoor environment for a long time, and their surfaces are extremely prone to accumulating dust, oil, lint, and other impurities. Moreover, the equipment generally lacks automated cleaning structures. Over time, the accumulation of impurities forms a dense heat insulation layer on the outer wall of the heat dissipation pipes, directly blocking the heat exchange surface and significantly reducing the heat exchange efficiency of the heat dissipation pipes, leading to a gradual decline in the heat dissipation performance of the transformers. The accumulated scale on the heat dissipation pipes prevents them from releasing the operating heat of the equipment in a timely manner. Especially when the equipment is operating under slight overload, heat accumulation and rapid temperature rise will occur. Furthermore, manual high-altitude cleaning and maintenance are difficult and frequent, greatly increasing the equipment operation and maintenance costs and risks.

[0004] On the other hand, traditional distribution transformers rely solely on a single heat dissipation mode of cooling oil circulation combined with natural air cooling, without any auxiliary heat dissipation structures, resulting in a low heat dissipation limit. In high-temperature environments during summer, or under conditions of prolonged full-load or overload operation, the heat exchange capacity of a single air cooling method reaches its bottleneck, failing to quickly remove the large amount of heat continuously generated by the transformer. This easily leads to problems such as excessively high internal oil temperature and accelerated insulation aging, and in severe cases, can cause equipment overheating tripping, winding burnout, and other faults. This significantly reduces the transformer's overload tolerance and operational safety, making it unsuitable for complex, high-load, long-term outdoor operating scenarios. Summary of the Invention

[0005] To address the above problems, this invention provides an overload-resistant heat dissipation distribution transformer.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an overload-resistant heat dissipation distribution transformer, comprising a distribution transformer body, wherein multiple heat dissipation pipes are respectively provided at the front and rear ends of the distribution transformer body, and a current collector is respectively connected to the upper and lower ends of the heat dissipation pipes, the current collector being interconnected with the distribution transformer body, a heat dissipation cleaning component is slidably connected to the heat dissipation pipes, a water storage component is installed on the upper end of the current collector, a reciprocating screw is drivenly connected to the heat dissipation cleaning component, the upper end of the reciprocating screw is rotatably connected to the water storage component, the lower end of the reciprocating screw is rotatably connected to the current collector, and a power source is drivenly connected to the lower end of the current collector; The water storage component includes a water storage pan, with a water storage cover fixed to the upper end of the water storage pan. The inner side of the water storage cover is in contact with the manifold. The water storage pan is provided with multiple slidable drain float valves. The heat dissipation and cleaning component includes a fixing plate, with water storage columns corresponding to the drain float valves fixed on the fixing plate. The fixing plate is provided with two vertically symmetrical cleaning rings.

[0007] Preferably, the water storage cover has multiple filter holes along its edge, the water storage cover is inclined, the water storage pan is provided with multiple waterproof sleeves, the waterproof sleeves are fitted onto the heat dissipation pipes, and a bracket is fixed to the rear end of the water storage pan, the bracket is fixed to the power distribution transformer body.

[0008] Preferably, a cover plate is fixed on the water storage pan, and two symmetrical columns are fixed at the lower end of the cover plate. The columns are fixed on the water storage pan, and multiple anti-detachment columns are provided at the lower end of the cover plate. Each anti-detachment column corresponds to a drain float valve, and a compression spring is provided between each anti-detachment column and the drain float valve.

[0009] Preferably, the upper end of the drain float valve is provided with a flange, the upper end of the flange is provided with a fixing seat for fixing the compression spring, the lower end of the drain float valve is provided with a sealing ring, and the drain float valve is provided with a plurality of drain holes along its circumference, the drain holes being located at the lower end of the water storage pan.

[0010] Preferably, a support plate is fixedly connected to the opposite sides of the two cleaning rings, the opposite sides of the two cleaning rings are chamfered, and a cleaning heat dissipation cotton fixedly connected to the fixing plate is provided between the two support plates.

[0011] Preferably, the lower end of the water storage column has two symmetrical water passages, which are connected to the cleaning and heat dissipation cotton. The upper end of the water storage column is provided with a docking groove, which corresponds to and cooperates with the sealing convex ring of the drain float valve.

[0012] Preferably, two sets of symmetrical anti-slip posts are provided on opposite sides of the two trays, the anti-slip posts are slidably connected to the fixed plate, and springs are provided between the two sets of anti-slip posts.

[0013] Preferably, the distribution transformer body is equipped with a circulation pump, and the heat dissipation pipe adopts a circulation method with cooling oil entering from the lower end and exiting from the upper end, so as to realize the full heat exchange and circulation of cooling oil inside the pipe.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. This device features a fully automatic reciprocating pipe wall cleaning function. Driven by a reciprocating screw, the heat dissipation cleaning components move continuously up and down. Symmetrically arranged cleaning rings and cleaning cotton ensure thorough descaling throughout the entire length of the heat dissipation pipe. Combined with a spring-loaded elastic contact structure and chamfered ends for scratch protection, it continuously removes dust, oil, and stubborn dirt from the pipe walls without damaging the equipment structure. This completely solves the problems of easy scale buildup and gradual decrease in heat dissipation efficiency in traditional power distribution transformer heat dissipation pipes. No regular manual cleaning and maintenance is required, significantly reducing equipment operation and maintenance difficulty and costs, and ensuring long-term stable basic heat dissipation performance.

[0015] 2. This device innovatively integrates rainwater recycling and filtration with evaporative cooling. Through an inclined water storage hood and filter holes, it can autonomously collect and filter outdoor rainwater around the clock, storing clean water resources in a water tray. No external water supply equipment is required, making it energy-efficient and environmentally friendly. Utilizing the adaptive docking water flow structure of the drain float valve and water storage column, it achieves automated and precise water control and on-demand water supply. This keeps the cooling cotton continuously moist and forms a uniform water film on the pipe wall. The latent heat of evaporation quickly removes heat from the cooling pipe, effectively compensating for the shortcomings of traditional single-air cooling. This significantly improves the heat dissipation efficiency of transformers under high-temperature environments and overload conditions, solving the core problems of excessive temperature rise and heat accumulation under overload conditions.

[0016] 3. This device features a rational overall structural design and strong linkage stability. All components are precisely matched and work collaboratively. Multiple limiting and protective structures, including anti-detachment columns, fixed seats, and anti-slip columns, effectively prevent malfunctions such as displacement, jamming, detachment, and failure of the compression springs and cleaning structure during long-term reciprocating operation. Simultaneously, the water storage component adopts a sealed, fitted installation with a waterproof sleeve design, effectively preventing rainwater and dust from seeping into the equipment, eliminating potential hazards such as oil-water mixing, short circuits due to moisture in components, and decreased insulation performance. The equipment has a low failure rate, strong wear resistance, and is suitable for long-term complex outdoor working conditions, significantly extending its overall service life.

[0017] 4. This device optimizes the transformer cooling oil circulation and heat dissipation system, adopting a bottom-up circulation method with oil inlet at the bottom and outlet at the top. This effectively extends the heat exchange time of the cooling oil. Combined with a multi-set heat dissipation pipe and manifold structure, it ensures uniform cooling oil distribution and sufficient heat exchange, avoiding the problems of uneven heat exchange and poor cooling effect in traditional oil circuits. The equipment integrates multiple heat dissipation mechanisms, including mechanical self-cleaning, rainwater evaporation-assisted heat dissipation, and efficient oil circuit circulation, forming an integrated overload protection and heat dissipation system. This system can stably control the transformer's operating temperature rise, significantly improve the equipment's overload tolerance and operational stability, effectively prevent equipment damage caused by high-temperature overload, and is suitable for long-term safe operation in various power distribution scenarios. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the heat dissipation pipe of the present invention; Figure 3 This is a schematic diagram of the water storage component of the present invention; Figure 4 This is a schematic diagram of the explosion of the water storage component of the present invention; Figure 5 This is a partially enlarged schematic diagram of the water storage component of the present invention; Figure 6 This is a schematic diagram of the heat dissipation component of the present invention; Figure 7 This is a partially enlarged schematic diagram of the heat dissipation component of the present invention. Figure 1 ; Figure 8 This is a partially enlarged schematic diagram of the heat dissipation component of the present invention. Figure 2 .

[0019] The diagram shows the following components: 1. Distribution transformer; 2. Heat dissipation assembly; 3. Water storage assembly; 4. Reciprocating screw; 5. Drain float valve; 11. Manifold; 12. Heat dissipation pipe; 21. Fixing plate; 22. Support plate; 23. Cleaning ring; 24. Cleaning heat dissipation cotton; 25. Water storage column; 26. Spring; 31. Water storage tray; 32. Water storage cover; 33. Filter hole; 34. Cover plate; 35. Compression spring; 51. Flange; 52. Fixing base; 53. Drain hole; 54. Protruding ring; 221. Anti-slip column; 251. Groove; 252. Water channel; 311. Waterproof sleeve; 341. Column; 342. Anti-slip column. Detailed Implementation

[0020] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of the invention.

[0021] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 An overload-resistant heat dissipation distribution transformer includes a transformer body 1. Multiple heat dissipation pipes 12 are evenly arranged at both the front and rear ends of the transformer body 1. The multiple sets of heat dissipation pipes 12 significantly increase the overall heat exchange area of ​​the transformer, solving the problems of insufficient heat exchange area and heat accumulation during overload operation in traditional distribution transformers, effectively increasing the upper limit of the equipment's basic heat dissipation. The upper and lower ends of each heat dissipation pipe 12 are connected to a manifold 11, which is interconnected with the internal cavity of the transformer body 1. The manifold 11 enables uniform distribution and centralized convergence of cooling oil, ensuring uniform cooling oil flow in each heat dissipation pipe 12. This solves the problems of uneven distribution of cooling oil and inefficient heat exchange in some pipes in traditional cooling systems, ensuring overall heat dissipation uniformity. A heat dissipation cleaning component 2 is slidably connected to the outer side of the heat dissipation pipe 12. A water storage component 3 is fixedly installed on the top of the upper manifold 11. A reciprocating screw 4 is driven to the top of the heat dissipation cleaning component 2. The upper end of the reciprocating screw 4 is rotatably connected to the water storage component 3, and the lower end of the reciprocating screw 4 is rotatably connected to the lower manifold 11. Through the two-end limiting rotation installation structure, the verticality and stability of the reciprocating screw 4 can be ensured, avoiding the problems of offset jamming, wear and jamming caused by long-term reciprocating transmission. A power source is driven to the bottom of the lower manifold 11. The power source provides stable power for the rotation of the reciprocating screw 4, thereby driving the heat dissipation cleaning component 2 to make precise up-and-down reciprocating sliding motion along the heat dissipation pipe 12, realizing automated cleaning and auxiliary heat dissipation operations without manual intervention, reducing equipment operation and maintenance costs.

[0022] Please see Figure 2 , Figure 3 and Figure 4The water storage component 3 includes a water storage pan 31, with a water storage cover 32 fixedly installed on the upper end of the water storage pan 31. The inner wall of the water storage cover 32 is tightly fitted to the outer wall of the upper manifold 11. This fitted sealing structure effectively prevents rainwater and dust from seeping into the equipment from the joint gaps, avoiding internal components from getting damp and corroding, accumulating dust and short-circuiting, and improving the safety and sealing of the equipment. Multiple evenly distributed drain float valves 5 are slidably installed on the water storage pan 31. The drain float valves 5 can automatically match the opening and closing water flow state according to the water storage volume inside the water storage pan 31, achieving adaptive water supply and solving the problems of traditional auxiliary heat dissipation water supply structures being unable to automatically control water, prone to water accumulation and overflow, or insufficient water supply. The heat dissipation cleaning component 2 includes a fixing plate 21, with a water storage column 25 fixedly installed on the top of the fixing plate 21, corresponding one-to-one with the number of drain float valves 5. This one-to-one matching structure can achieve single-group drainage and single-group precise water supply, avoiding water waste, while ensuring that each heat dissipation pipe 12 can obtain a uniform humidified heat dissipation effect. Two cleaning rings 23 are symmetrically installed on the fixed plate 21, one above the other. The symmetrical double-ring structure enables the heat dissipation pipe 12 to be cleaned in a reciprocating manner throughout its entire process. The dirt can be cleaned in both the upward and downward movement processes, with no dead corners. This completely solves the defects of traditional single-end cleaning structures, such as incomplete cleaning and localized dirt accumulation on the pipe wall that affects heat dissipation.

[0023] Please see Figure 2 , Figure 3 and Figure 4 The water storage cover 32 has multiple filter holes 33 evenly distributed along its annular edge. The water storage cover 32 adopts an inclined structure design, which allows rainwater to flow smoothly, accelerating rainwater collection efficiency, while preventing large debris such as fallen leaves and mud from accumulating on the surface of the cover. Combined with the filter holes 33, the collected rainwater can be finely filtered, effectively preventing external impurities from entering the water storage pan 31. This solves the problems of easy clogging and impurity accumulation damaging pipes and cleaning structures in traditional rainwater collection structures, ensuring smooth water flow. Multiple waterproof sleeves 311 are fixedly installed at the bottom of the water storage pan 31. Each waterproof sleeve 311 is fitted onto the outer top of the heat dissipation pipe 12. The waterproof sleeves 311 provide sealing, waterproofing, and heat insulation protection, preventing rainwater inside the water storage pan 31 from seeping into the connection gap between the heat dissipation pipe 12 and the manifold 11, avoiding oil-water mixing and reduced equipment insulation performance. The rear end of the water storage pan 31 is fixedly connected to a special mounting bracket, which is fixedly installed on the outer wall of the power distribution transformer body 1. The fixed bracket structure can greatly improve the installation firmness of the water storage component 3, resist the impact of outdoor wind, rain and vibration, avoid structural loosening, displacement and falling off during long-term operation, and improve the overall structural stability of the equipment.

[0024] Please see Figure 2 , Figure 3 and Figure 4A cover plate 34 is fixedly installed on the top of the water storage pan 31. Two symmetrical columns 341 are fixed on the lower end of the cover plate 34. The bottom ends of the columns 341 are fixedly connected to the upper end of the water storage pan 31. The double-column support structure can provide stable support for the cover plate 34, preventing the cover plate 34 from deforming or collapsing under pressure, and ensuring the installation accuracy of the upper structure. Multiple anti-detachment columns 342 are evenly arranged on the lower end of the cover plate 34. The anti-detachment columns 342 and the drain float valves 5 are arranged in a one-to-one correspondence. A compression spring 35 is assembled between the anti-detachment column 342 and the corresponding drain float valve 5. The anti-detachment column 342 can limit and guide the compression spring 35, completely solving the problem of the compression spring 35 being prone to displacement, detachment, and failure during long-term extension and contraction. The compression spring 35 can automatically reset the drain float valve 5 by its own elasticity, ensuring the accuracy and repeatability of the opening and closing action of the drain float valve 5 and improving the stability of the automated operation of the equipment.

[0025] Please see Figure 4 The top of the drain float valve 5 is provided with a flange 51, and a fixing seat 52 for limiting and fixing the compression spring 35 is fixedly installed on the upper end of the flange 51. The fixing seat 52 and the flange 51 cooperate to form a double-layer limiting structure, which firmly locks the installation position of the compression spring 35, prevents the compression spring 35 from moving up and down and falling off, and ensures the continuous and stable operation of the elastic reset structure. The bottom end of the drain float valve 5 is provided with a sealing ring 54, and multiple drain holes 53 are evenly opened along the circumferential direction on the column of the drain float valve 5. The drain holes 53 are precisely arranged in the lower area of ​​the water storage pan 31. When the drain float valve 5 is lifted and displaced, the drain holes 53 can be exposed and conduct water to achieve rainwater transportation; when the drain float valve 5 is reset, the drain holes 53 are closed and the water supply stops. The precise hole position design realizes the automatic switching of water supply and water cut-off, which solves the problem that traditional water-cooled auxiliary structures cannot start and stop water control and the continuous water leakage causes the equipment to become damp.

[0026] Please see Figure 6 , Figure 7 and Figure 8 Each of the two cleaning rings 23 has a support plate 22 fixedly connected to its inner side. The outer sides of the two cleaning rings 23 are chamfered. The chamfered structure reduces the frictional resistance when the cleaning rings 23 slide back and forth, preventing scratches and damage to the anti-corrosion layer of the outer wall of the heat sink 12. It also facilitates the cleaning of dirt on the tube wall and improves the dirt removal effect. A cleaning heat sink cotton 24 connected to the fixing plate 21 is fixedly installed between the two support plates 22. The cleaning heat sink cotton 24 has high water absorption and wear resistance. It can polish and remove stubborn dirt on the tube wall during reciprocating movement. At the same time, it can absorb and store moisture, providing continuous moist heat dissipation conditions for the heat sink 12, solving the industry pain points of dirt accumulation on the outer wall of traditional heat sinks and low dry heat dissipation efficiency.

[0027] Please see Figure 6 , Figure 7 and Figure 8 The lower end of the water storage column 25 has two symmetrical water passage holes 252, which are interconnected with the internal cavity of the cleaning and heat dissipation cotton 24. This interconnected structure allows rainwater stored inside the water storage column 25 to be precisely guided into the cleaning and heat dissipation cotton 24, achieving uniform water supply and avoiding uneven drying and large differences in heat dissipation. The upper end of the water storage column 25 has a docking groove 251, which corresponds to and fits one-to-one with the sealing protrusion 54 at the bottom of the drain float valve 5. After docking, a sealed water path is formed to prevent water leakage and seepage during water transportation, ensuring efficient use of water resources and preventing water seepage from corroding the equipment structure.

[0028] Please see Figure 6 , Figure 7 and Figure 8 Two sets of anti-slip posts 221 are symmetrically arranged on opposite sides of the two trays 22. The anti-slip posts 221 are slidably connected to the fixed plate 21, which can precisely guide the movement of the trays 22 and the cleaning ring 23, preventing the cleaning structure from shifting or getting stuck. Springs 26 are respectively installed between the two sets of anti-slip posts 221. The springs 26 can provide elastic compression force, so that the cleaning ring 23 and the cleaning heat dissipation cotton 24 are always in close contact with the outer wall of the heat dissipation pipe 12, adapting to the slight deformation of the pipe wall, ensuring that there are no dead corners in cleaning and no omissions in wetting, while buffering the impact force of reciprocating movement, reducing structural wear, and extending the service life of the equipment.

[0029] Please see Figure 6 , Figure 7 and Figure 8 The distribution transformer body 1 is equipped with a circulating pump. When the equipment is working, the cooling oil enters the tube body from the lower end of the heat dissipation pipe 12. After completing heat exchange and cooling, it flows out from the upper end of the heat dissipation pipe 12. The bottom-up circulation direction can extend the residence time of the cooling oil in the heat dissipation pipe 12, fully complete the heat exchange, improve the heat exchange efficiency of the cooling oil, and solve the problems of short circulation path, insufficient heat exchange, and poor cooling effect of traditional cooling oil.

[0030] In summary, through precise matching and coordinated operation of its various structures, this equipment forms an integrated overload-resistant heat dissipation system that combines automatic water collection and filtration, adaptive water supply control, automated pipe wall cleaning, evaporative cooling, and efficient oil circulation. First, the water storage component 3 can autonomously collect and filter outdoor rainwater, realizing the recycling of natural resources without the need for additional water supply equipment, thus saving energy and protecting the environment. Second, the reciprocating screw 4 drives the heat dissipation cleaning component 2 to continuously reciprocate, and with the symmetrical cleaning structure, it removes dirt from the surface of the heat dissipation pipe 12 around the clock, eliminating the problem of heat insulation due to dirt accumulation and continuously ensuring the basic heat dissipation efficiency of the heat dissipation pipe 12. At the same time, through the adaptive docking water supply structure between the drain float valve 5 and the water storage column 25, water is precisely supplied to the cleaning heat dissipation cotton 24, so that a uniform water film is continuously maintained on the surface of the heat dissipation pipe 12. The water evaporates quickly and carries away a large amount of heat, greatly improving the extreme heat dissipation capacity under overload conditions. Finally, in conjunction with the transformer's internal bottom-up cooling oil circulation system, the efficiency of heat exchange is further enhanced. The superposition of multiple heat dissipation mechanisms completely solves the core problems of traditional distribution transformers, such as easy overheating under overload, rapid decay of heat dissipation efficiency, high operation and maintenance costs, and low utilization of natural resources. This effectively improves the equipment's operational stability, safety, and overload tolerance, and extends the equipment's service life.

[0031] When using this invention: After the equipment is powered on, the circulating pump inside the distribution transformer body 1 starts synchronously, driving the internal cooling oil to circulate continuously. The cooling oil flows into the tube body from the lower end of each group of heat dissipation pipes 12, flows upward along the heat dissipation pipes 12 to complete heat exchange, absorbs the heat generated by the transformer operation, and finally flows out from the upper end of the heat dissipation pipes 12. It is then evenly distributed and concentrated through the upper and lower end junction boxes 11, and flows back into the distribution transformer body 1 to continuously remove the heat generated by the equipment operation, realize basic air cooling, and ensure the temperature stability of the transformer under normal operating conditions.

[0032] During equipment operation, the water storage component 3 remains in a standby water collection state. When outdoor rainwater falls on the surface of the water storage cover 32, it is quickly guided by the inclined structure of the water storage cover 32. After impurities are filtered through the filter holes 33, the rainwater flows into the water storage pan 31 for storage, effectively preventing debris from entering the water passage and causing blockage. At the same time, the waterproof sleeve 311 at the bottom of the water storage pan 31 provides a sealing and protective function, preventing rainwater from seeping into the joint gaps, ensuring the insulation safety of the equipment, and reserving clean water resources for subsequent auxiliary evaporation and heat dissipation.

[0033] During operation, the power source at the bottom of the lower manifold 11 continuously operates, driving the reciprocating screw 4 to rotate at a constant speed, causing the fixing plate 21 of the heat dissipation cleaning component 2 to make a stable up-and-down reciprocating sliding motion along the outside of the heat dissipation pipe 12. During the upward movement of the fixing plate 21, the upper cleaning ring 23 and the cleaning heat dissipation cotton 24 scrape and clean the outer wall of the heat dissipation pipe 12; during the downward movement of the fixing plate 21, the lower cleaning ring 23 and the cleaning heat dissipation cotton 24 complete a secondary cleaning, achieving full-stroke descaling without dead angles. At the same time, the spring 26 between the support plate 22 and the fixing plate 21 continuously provides elastic pressure, keeping the cleaning structure in contact with the pipe wall at all times. Combined with the end chamfering structure to reduce friction loss, it continuously removes dust and oil stains from the pipe wall, avoiding the accumulation of scale and heat insulation that would reduce heat dissipation efficiency.

[0034] When the fixed plate 21 moves upward with the reciprocating screw 4 to its maximum stroke position, the water storage column 25 at the top of the fixed plate 21 moves upward accordingly, and the docking groove 251 at its upper end precisely seals with the sealing protrusion ring 54 at the bottom of the drain float valve 5. The fixed plate 21 continues to move upward, lifting the drain float valve 5, causing the entire drain float valve 5 to move upward and compress the outer compression spring 35. At this time, the drain hole 53 on the column of the drain float valve 5 is exposed in the cavity of the water storage pan 31. The clean water stored in the water storage pan 31 flows into the interior of the drain float valve 5 through the drain hole 53, and is then introduced through the water storage column 25. It is then evenly transported to the interior of the cleaning and heat dissipation cotton 24 through the symmetrical water passage holes 252 at the bottom, so that the cleaning and heat dissipation cotton 24 can fully absorb water and become moist.

[0035] After the fixed plate 21 reaches its upper limit position, it begins to descend and reset. The water reservoir 25 gradually separates from the drain float valve 5. The spring 35 resets due to its own elasticity, pushing the drain float valve 5 to move downward and reset as a whole. The drain hole 53 is then hidden and sealed again, and the water reservoir 31 stops supplying water. The water-absorbing cleaning cotton 24 descends with the fixed plate 21, evenly coating the entire outer surface of the heat sink 12 with water to form a uniform water film. The water film quickly absorbs the heat from the cooling oil inside the heat sink 12 and evaporates. Utilizing the latent heat of vaporization of water, it rapidly removes a large amount of heat, significantly improving the heat exchange efficiency of the heat sink 12 and specifically addressing the problems of transformer overload and heat accumulation under high-temperature environments.

[0036] Throughout the entire operation of the equipment, the aforementioned cleaning, water circulation, humidification, and evaporative heat dissipation processes continuously cycle. The fixed seat 52 of the drain float valve 5 and the anti-detachment column 342 cooperate with each other to always limit the displacement of the pressure spring 35, ensuring accurate and stable docking and resetting actions each time; the anti-detachment sliding column 221 guides and limits the cleaning structure to prevent structural jamming and displacement. Through automated mechanical reciprocating operation, the tube wall of the heat dissipation pipe 12 is kept clean and heat dissipation is highly efficient. The superposition of multiple heat dissipation mechanisms effectively suppresses the temperature rise of the transformer, prevents equipment overload and high temperature damage, and requires no manual intervention throughout the process, achieving automated and long-term anti-overload heat dissipation operation.

[0037] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An overload-resistant heat dissipation distribution transformer, characterized in that: The transformer includes a power distribution transformer body (1), with multiple heat dissipation pipes (12) respectively installed at the front and rear ends of the power distribution transformer body (1). The upper and lower ends of the heat dissipation pipes (12) are respectively connected to a junction box (11). The junction box (11) is connected to the power distribution transformer body (1). A heat dissipation cleaning component (2) is slidably connected to the heat dissipation pipes (12). A water storage component (3) is installed on the upper end of the junction box (11). A reciprocating screw (4) is drivenly connected to the heat dissipation cleaning component (2). The upper end of the reciprocating screw (4) is rotatably connected to the water storage component (3). The lower end of the reciprocating screw (4) is rotatably connected to the junction box (11). A power source is drivenly connected to the lower end of the junction box (11). The water storage component (3) includes a water storage pan (31), and a water storage cover (32) is fixed at the upper end of the water storage pan (31). The inner side of the water storage cover (32) is in contact with the manifold (11). Multiple slidable drain float valves (5) are provided on the water storage pan (31). The heat dissipation and cleaning component (2) includes a fixing plate (21), and water storage columns (25) corresponding to the drain float valves (5) are fixed on the fixing plate (21). Two vertically symmetrical cleaning rings (23) are provided on the fixing plate (21).

2. The overload-resistant heat dissipation distribution transformer according to claim 1, characterized in that: The water storage cover (32) has multiple filter holes (33) along its edge. The water storage cover (32) is inclined. The water storage pan (31) is provided with multiple waterproof sleeves (311). The waterproof sleeves (311) are fitted onto the heat dissipation pipe (12). The rear end of the water storage pan (31) is fixed with a bracket, which is fixed on the power distribution transformer body (1).

3. The overload-resistant heat dissipation distribution transformer according to claim 1, characterized in that: A cover plate (34) is fixed on the water storage pan (31). Two symmetrical columns (341) are fixed at the lower end of the cover plate (34). The columns (341) are fixed on the water storage pan (31). Multiple anti-detachment columns (342) are provided at the lower end of the cover plate (34). Each anti-detachment column (342) corresponds to a drain float valve (5). A compression spring (35) is provided between the anti-detachment column (342) and the drain float valve (5).

4. The overload-resistant heat dissipation distribution transformer according to claim 3, characterized in that: The upper end of the drain float valve (5) is provided with a flange (51), and the upper end of the flange (51) is provided with a fixing seat (52) for fixing the compression spring (35). The lower end of the drain float valve (5) is provided with a sealing ring (54). The drain float valve (5) is provided with a plurality of drain holes (53) along its circumference, and the drain holes (53) are located at the lower end of the water storage pan (31).

5. The overload-resistant heat dissipation distribution transformer according to claim 1, characterized in that: The two cleaning rings (23) are respectively fixedly connected to the opposite sides of the two cleaning rings (23), and the opposite sides of the two cleaning rings (23) are chamfered. A cleaning heat dissipation cotton (24) fixedly connected to the fixing plate (21) is provided between the two cleaning rings (22).

6. The overload-resistant heat dissipation distribution transformer according to claim 5, characterized in that: The lower end of the water storage column (25) has two symmetrical water passage holes (252), which are connected to the heat dissipation cotton (24). The upper end of the water storage column (25) is provided with a docking groove (251), which corresponds to the sealing ring (54) of the drain float valve (5).

7. The overload-resistant heat dissipation distribution transformer according to claim 6, characterized in that: Two sets of symmetrical anti-slip posts (221) are respectively provided on opposite sides of the two trays (22). The anti-slip posts (221) are slidably connected to the fixed plate (21), and springs (26) are respectively provided between the two sets of anti-slip posts (221).

8. The overload-resistant heat dissipation distribution transformer according to claim 1, characterized in that: The distribution transformer body (1) is equipped with a circulation pump inside. The heat dissipation pipe (12) adopts a circulation method of cooling oil entering from the lower end and exiting from the upper end, so as to realize the full heat exchange circulation of cooling oil inside the pipe.

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