Oil-immersed distribution transformer with a wound core

Abstract

This invention discloses an oil-immersed wound core distribution transformer, relating to the technical field of wound core distribution transformers. The transformer has heat sinks evenly distributed on its outer surface, with the outer surface of the heat sinks fixedly connected to the inner wall of the transformer. An inclined component is used to protect the transformer from rain. A connecting component is fixedly connected to the bottom of the transformer. By incorporating the inclined component and an arc-shaped plate on the top of the transformer, the invention prevents birds from building nests on the surface of the arc-shaped plate, thus avoiding safety hazards during transformer use. Simultaneously, during rainy days, the collection and storage of rainwater by the collection mechanism allows the connecting rod to slide on the connecting shaft, thereby causing the connecting rod to drive the contact mechanism to contact and move against the outer surface of the arc-shaped plate.

Description

Technical Field

[0001] This invention relates to the field of wound-core distribution transformer technology, specifically to an oil-immersed wound-core distribution transformer. Background Technology

[0002] Distribution transformers are one of the important pieces of equipment in the power supply and distribution systems of industrial and mining enterprises and civil buildings. They reduce the 10 (6) kV or 35 kV network voltage to the 230 / 400 V bus voltage used by users. These products are suitable for AC 50 (60) Hz, with a maximum three-phase rated capacity of 2500 kVA (the maximum single-phase rated capacity is 833 kVA, and single-phase transformers are generally not recommended). They can be used indoors or outdoors. When the capacity is 315 kVA or less, they can be installed on poles. The ambient temperature should not be higher than 40℃ and not lower than -25℃. The maximum daily average temperature is 30℃ and the maximum annual average temperature is 20℃. The relative humidity should not exceed 90% (at an ambient temperature of 25℃) and the altitude should not exceed 1000m.

[0003] After the existing transformer is installed, it is exposed to the outside environment for a long time. Some birds will build nests on top of the transformer, which poses a risk to the transformer's safety. Summary of the Invention

[0004] To address the shortcomings of existing technologies, the technical solution adopted by this invention is: an oil-immersed wound core distribution transformer, comprising:

[0005] A transformer, wherein heat sinks are uniformly arranged on the outer surface of the transformer, and the outer surface of the heat sinks is fixedly connected to the inner wall of the transformer.

[0006] An inclined component is used to protect the transformer from rain, and a connecting component is fixedly connected to the bottom of the transformer;

[0007] The bottom of the inclined component is fixedly connected to the top of the transformer;

[0008] The inclined component includes a top plate, the bottom of which is fixedly connected to the top of the transformer. An arc-shaped plate is fixedly connected to the top of the top plate. The outer surface of the arc-shaped plate has symmetrically formed grooves. A connecting shaft is fixedly connected to the inner wall of the arc-shaped plate. A first spring is sleeved on the outer surface of the connecting shaft. The bottom of the first spring is fixedly connected to the inner wall of the top plate, and the top of the first spring is fixedly connected to the outer surface of a connecting rod. A connecting rod is slidably connected to the outer surface of the connecting shaft. The outer surface of the connecting rod is slidably connected to the inner wall of the grooves. A collecting mechanism is fixedly connected to the top of the connecting rod, and a contact mechanism is fixedly connected to the side of the connecting rod away from the connecting shaft. By setting an arc-shaped plate on the top of the transformer, the inclined arc shape of the plate can prevent birds from building nests on its surface, thus avoiding safety hazards during transformer use. At the same time, during rainy days, the collection and storage of rainwater by the collecting mechanism can drive the connecting rod to slide on the connecting shaft, thereby causing the connecting rod to drive the contact mechanism to contact and move against the outer surface of the arc-shaped plate.

[0009] Preferably, the contact mechanism includes a contact plate, the inner wall of which is fixedly connected to the outer surface of the connecting rod. The outer surface of the contact plate has uniformly spaced square grooves. A telescopic rod is fixedly connected to the inner wall of the square grooves. A scraper is fixedly connected to the end of the telescopic rod away from the contact plate. The end of the scraper away from the contact plate contacts the outer surface of the arc-shaped plate. A second spring is sleeved on the outer surface of the telescopic rod. The end of the second spring away from the square groove is fixedly connected to the inner wall of the scraper, and the end of the second spring away from the scraper is fixedly connected to the inner wall of the square groove. After collecting rainwater, the collecting mechanism moves the connecting rod, causing the connecting rod to slide the contact plate on the outer surface of the arc-shaped plate. The contact plate continues to move downwards via the connecting rod. Because the telescopic rod and the second spring are located on the inner wall of the square groove, when the connecting rod moves continuously, the scraper, stretched by the second spring, continuously abuts against the outer surface of the arc-shaped plate during movement via the telescopic rod, thus contacting and moving the outer surface of the arc-shaped plate. This prevents bird nesting debris from remaining on the outer surface of the arc-shaped plate, avoiding safety hazards during transformer use.

[0010] Preferably, the collection mechanism includes a collection tube, the inner wall of which is fixedly connected to the outer surface of a connecting rod. The outer surface of the collection tube has uniformly distributed through-holes and sliding grooves. A sliding plate is slidably connected to the inner wall of the collection tube. A guide plate is fixedly connected to the outer surface of the sliding plate. Hooks are uniformly distributed on the outer surface of the guide plate. The end of the hooks away from the through-holes is fixedly connected to the outer surface of the sliding plate. A squeezing assembly is fixedly connected to the end of the collection tube away from the guide plate. A sponge block is fixedly connected to the inner wall of the collection tube. During rainy days, continuous rainfall allows rainwater to enter the collection tube through the through-holes, causing the sponge block to absorb the rainwater. Water is collected, and the weight of the rainwater absorbed by the sponge block moves the connecting rod downwards. When the rain stops, the rainwater in the collection pipe can leak out through the through-hole. When the weather clears, the water in the sponge block evaporates, reducing its weight and allowing the connecting rod to return to its original position. By moving the guide plate, the guide plate moves the sliding plate along the inner wall of the collection pipe, which in turn moves the hook ring within the collection pipe's cavity. The hook ring can then hook up leaves that have fallen into the through-hole and the collection pipe. Moved by the sliding plate, the hook ring contacts the squeezing component, thus cleaning the leaves off the hook ring.

[0011] Preferably, the extrusion assembly includes a limiting plate, the outer surface of which is fixedly connected to the inner wall of the collecting tube. The outer surface of the limiting plate has uniformly spaced slots and circular holes. Connecting blocks are uniformly arranged on the outer surface of the limiting plate. One end of each connecting block near the collecting tube is fixedly connected to the outer surface of the limiting plate, and the other end of each connecting block away from the limiting plate is fixedly connected to an extrusion plate. An extrusion rod is fixedly connected to the outer surface of the extrusion plate. When the sliding plate drives the hook ring to move continuously, the hook ring pulls the fallen leaves from the collecting tube out through the slots. The extrusion rod then squeezes the hook ring, thus dislodging the leaves. Simultaneously, the arc-shaped design of the extrusion plate prevents the hook ring from blocking the extrusion plate when it moves with the leaves, thus avoiding jamming the sliding plate.

[0012] Preferably, the connecting component includes a base plate, with upper mounting brackets fixedly connected to both ends of the base plate. Fixed shafts are evenly distributed along the inner wall of the upper mounting brackets. The end of each fixed shaft near the base plate is fixedly connected to the outer surface of the upper mounting bracket. A lower mounting bracket is slidably connected to the end of the fixed shaft away from the upper mounting bracket. The outer surface of the lower mounting bracket contacts the inner wall of the upper mounting bracket. A third spring is sleeved on the outer surface of the fixed shafts. The end of the third spring near the base plate is fixedly connected to the inner wall of the upper mounting bracket. The end of the third spring away from the upper mounting bracket is fixedly connected to the inner wall of the lower mounting bracket. A filter plate is fixedly connected to the inner wall of the base plate. A fixed plate is fixedly connected to the end of the inner wall of the base plate away from the filter plate. Ventilation openings are evenly distributed on the outer surface of the fixed plate. A motor is fixedly connected to the end of the base plate away from the filter plate. The bottom plate is rotatably connected to a fan blade at the end furthest from the motor. The output end of the motor is fixedly connected to the inner wall of the fan blade. The filter plate is rotatably connected to a scraping mechanism at the end furthest from the fan blade. When installing the transformer, the transformer is lifted, and the lower mounting frame is brought into contact with the installation platform before the transformer is placed. When placing the transformer, the upper mounting frame is buffered by a third spring against the lower mounting frame to avoid impact damage to the components inside the transformer during hoisting and rotation. When the transformer is in use, the motor is turned on, and the output end of the motor drives the fan blade to rotate on the fixed plate, thereby dissipating heat from the inside of the transformer. At the same time, the rotation of the fan blade drives the scraping mechanism to rotate on the filter plate, thereby rotating and cleaning the outer surface of the filter plate.

[0013] Preferably, the scraping mechanism includes a rotating shaft, one end of which is fixedly connected to the inner wall of the fan blade near the base plate. The outer surface of the rotating shaft is uniformly covered with rotating shafts. The inner wall of the rotating shaft is fixedly connected to the outer surface of the rotating frame. A rotating plate is fixedly connected to the end of the rotating shaft near the fan blade. Scraping plates are uniformly arranged at the end of the rotating plate near the fan blade. The outer surface of the scraping plates is fixedly connected to the inner wall of the rotating plate. Pins are uniformly arranged on the inner wall of the rotating plate. The outer surface of the pins is fixedly connected to the inner wall of the rotating plate. The fan blade is rotated via the motor output, and the fan blade simultaneously drives the rotating shaft to rotate. The rotating shaft causes the rotating frame and rotating plate to rotate on the outer surface of the filter screen, thereby causing the scraping plates and pins to contact and rotate on the outer surface of the filter screen, thus scraping off impurities and lint adhering to the filter screen.

[0014] The beneficial effects of this invention are as follows:

[0015] 1. This invention, by setting an inclined component and an arc-shaped plate on the top of the transformer, avoids birds from building nests on the surface of the arc-shaped plate due to its inclined arc shape, thereby avoiding safety hazards during transformer use. At the same time, on rainy days, the collection and storage of rainwater by the collection mechanism can drive the connecting rod to slide on the connecting shaft, thereby causing the connecting rod to drive the contact mechanism to contact and move the outer surface of the arc-shaped plate.

[0016] 2. This invention, through the setting of a collection mechanism, allows rainwater to enter the collection pipe through the through-hole during rainy days. The sponge block collects the rainwater, and the weight of the rainwater absorbed by the sponge block moves the connecting rod downwards. When the rain stops, the rainwater in the collection pipe leaks out through the through-hole. When the weather clears, the water in the sponge block evaporates, reducing its weight and allowing the connecting rod to return to its original position. A moving guide plate moves a sliding plate along the inner wall of the collection pipe, causing the sliding plate to move a hook ring within the collection pipe's cavity. The hook ring catches leaves that have fallen into the through-hole and the collection pipe, and is moved by the sliding plate. Simultaneously, the hook ring contacts the squeezing component, cleaning the leaves from the hook ring.

[0017] 3. This invention incorporates a contact mechanism. After collecting rainwater, the collecting mechanism moves the connecting rod, causing the contact plate to slide on the outer surface of the arc-shaped plate. The contact plate continues to move downwards via the connecting rod. A telescopic rod and a second spring are installed on the inner wall of the square groove. As the connecting rod moves, the scraper, stretched by the second spring, continuously contacts the outer surface of the arc-shaped plate, preventing bird nesting debris from remaining on the outer surface and posing a safety hazard during transformer operation.

[0018] 4. By setting up a squeezing mechanism, when the sliding plate drives the hook ring to move continuously, the hook ring drives the fallen leaves in the collection tube to move out through the slot. Then, the squeezing rod squeezes the hook ring, thereby squeezing the leaves that have been hooked off the hook ring. At the same time, due to the arc-shaped setting of the squeezing plate, it can avoid the hook ring from blocking the squeezing plate when it drives the leaves to move, thus preventing the sliding plate from getting stuck.

[0019] 5. The present invention sets up a scraping mechanism, in which the motor output drives the fan blades to rotate, and the fan blades drive the rotating shaft to rotate. The rotating shaft drives the rotating frame and the rotating plate to rotate on the outer surface of the filter screen, so that the scraping plate and the top pin come into contact with the outer surface of the filter screen and rotate, thereby scraping off the impurities and flocculent dust adhering to the filter screen. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the present invention;

[0021] Figure 2 This is an isometric view of the present invention;

[0022] Figure 3 This is a schematic diagram of the tilting component of the present invention;

[0023] Figure 4 This is a schematic diagram of the contact mechanism of the present invention;

[0024] Figure 5 This is a schematic diagram of the collection mechanism of the present invention;

[0025] Figure 6 This is the present invention. Figure 5 Schematic diagram of the structure at point A;

[0026] Figure 7 This is a schematic diagram of the structure of the connecting component of the present invention;

[0027] Figure 8 This is an isometric view of the connecting component of the present invention;

[0028] Figure 9 This is a schematic diagram of the scraping mechanism of the present invention;

[0029] In the diagram: 1. Transformer; 2. Inclined component; 21. Top plate; 22. Arc plate; 23. Slide groove; 24. Connecting shaft; 25. First spring; 26. Connecting rod; 27. Collecting mechanism; 271. Collecting pipe; 272. Through hole; 273. Sliding groove; 274. Sliding plate; 275. Guide plate; 276. Hook and ring; 277. Extrusion assembly; 2771. Limiting plate; 2772. Groove; 2773. Circular hole; 2774. Connecting block; 2775. Extrusion plate; 2776. Extrusion rod; 278. Sponge block 28. Contact mechanism; 281. Contact plate; 282. Square groove; 283. Telescopic rod; 284. Scraper; 285. Second spring; 3. Heat sink; 4. Connecting parts; 41. Base plate; 42. Upper mounting bracket; 43. Fixed shaft; 44. Third spring; 45. Lower mounting bracket; 46. Filter plate; 47. Fan blade; 48. Scraping mechanism; 481. Rotating shaft; 482. Rotating frame; 483. Rotating plate; 484. Scraping plate; 485. Pin; 49. Motor; 410. Fixed plate; 411. Ventilation opening. Detailed Implementation

[0030] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the invention to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical application of the invention, and to enable those skilled in the art to understand the invention and design various embodiments with various modifications suitable for a particular purpose.

[0031] Example 1, using Figures 1-8 An oil-immersed wound core distribution transformer according to an embodiment of the present invention will be described as follows.

[0032] like Figures 1-8 As shown, an oil-immersed wound core distribution transformer of the present invention includes:

[0033] Transformer 1, with heat sinks 3 evenly distributed on the outer surface of transformer 1, and the outer surface of heat sinks 3 is fixedly connected to the inner wall of transformer 1.

[0034] Inclined component 2 is used to protect transformer 1 from rain. Connecting component 4 is fixedly connected to the bottom of transformer 1.

[0035] The bottom of the tilting component 2 is fixedly connected to the top of the transformer 1;

[0036] The inclined component 2 includes a top plate 21, the bottom of which is fixedly connected to the top of the transformer 1. An arc-shaped plate 22 is fixedly connected to the top of the top plate 21. The outer surface of the arc-shaped plate 22 has symmetrically formed grooves 23. A connecting shaft 24 is fixedly connected to the inner wall of the arc-shaped plate 22. A first spring 25 is sleeved on the outer surface of the connecting shaft 24. The bottom of the first spring 25 is fixedly connected to the inner wall of the top plate 21, and the top of the first spring 25 is fixedly connected to the outer surface of the connecting rod 26. The connecting rod 26 is slidably connected to the outer surface of the connecting shaft 24, and the outer surface of the connecting rod 26 is slidably connected to the inner wall of the groove 23. A collection mechanism 27 is fixedly connected to the top of the connecting rod 26, and a contact mechanism 28 is fixedly connected to the side of the connecting rod 26 away from the connecting shaft 24. By setting an arc plate 22 on the top of the transformer 1, the inclined arc shape of the arc plate 22 can prevent birds from building nests on the surface of the arc plate 22, thereby avoiding safety hazards when the transformer 1 is used. At the same time, on rainy days, the collection and storage of rainwater by the collection mechanism 27 can drive the connecting rod 26 to slide on the connecting shaft 24, thereby causing the connecting rod 26 to drive the contact mechanism 28 to contact and move against the outer surface of the arc plate 22.

[0037] The contact mechanism 28 includes a contact plate 281. The inner wall of the contact plate 281 is fixedly connected to the outer surface of the connecting rod 26. Square grooves 282 are evenly distributed on the outer surface of the contact plate 281. A telescopic rod 283 is fixedly connected to the inner wall of the square grooves 282. A scraper 284 is fixedly connected to the end of the telescopic rod 283 away from the contact plate 281. The end of the scraper 284 away from the contact plate 281 contacts the outer surface of the arc-shaped plate 22. A second spring 285 is sleeved on the outer surface of the telescopic rod 283. The end of the second spring 285 away from the square groove 282 is fixedly connected to the inner wall of the scraper 284, and the end of the second spring 285 away from the scraper 284 is fixedly connected to the inner wall of the square groove 282. The collection mechanism 2... 7. After collecting rainwater, the connecting rod 26 is moved, causing the contact plate 281 to slide on the outer surface of the arc plate 22. The contact plate 281 continues to move downwards via the connecting rod 26. A telescopic rod 283 and a second spring 285 are provided on the inner wall of the square groove 282. When the connecting rod 26 moves continuously, the scraper 284 is stretched by the second spring 285 and driven by the telescopic rod 283 to continuously abut against the outer surface of the arc plate 22, thereby making contact with the outer surface of the arc plate 22. This prevents bird nesting debris from remaining on the outer surface of the arc plate 22, thus avoiding safety hazards when the transformer 1 is in use.

[0038] The collection mechanism 27 includes a collection pipe 271. The inner wall of the collection pipe 271 is fixedly connected to the outer surface of the connecting rod 26. Through holes 272 are evenly distributed on the outer surface of the collection pipe 271, and sliding grooves 273 are evenly distributed on the outer surface of the collection pipe 271. A sliding plate 274 is slidably connected to the inner wall of the collection pipe 271. A guide plate 275 is fixedly connected to the outer surface of the sliding plate 274. Hooks 276 are evenly distributed on the outer surface of the guide plate 275. One end of the hook 276 away from the through hole 272 is fixedly connected to the outer surface of the sliding plate 274. A squeezing assembly 277 is fixedly connected to the end of the collection pipe 271 away from the guide plate 275. A sponge block 278 is fixedly connected to the inner wall of the collection pipe 271. During rainy days, rainwater enters the collection pipe 271 through the through holes 272, allowing the sponge block 278 to collect the rainwater. The weight of the rainwater absorbed by the sponge block 278 causes the connecting rod 26 to move downwards. When the rain stops, the rainwater in the collection pipe 271 can leak out through the through hole 272. When the weather clears, the water in the sponge block 278 evaporates, reducing its weight and allowing the connecting rod 26 to return to its original position. By moving the guide plate 275, the guide plate 275 drives the sliding plate 274 to move within the inner wall of the collection pipe 271. This causes the sliding plate 274 to move the hook ring 276 within the inner cavity of the collection pipe 271, allowing the hook ring 276 to hook up leaves that have fallen into the through hole 272 and the collection pipe 271. The hook ring 276 moves with the sliding plate 274 and contacts the squeezing component 277, thus cleaning the leaves off the hook ring 276.

[0039] The extrusion assembly 277 includes a limiting plate 2771, the outer surface of which is fixedly connected to the inner wall of the collecting pipe 271. The outer surface of the limiting plate 2771 has evenly distributed slots 2772 and circular holes 2773. Connecting blocks 2774 are evenly distributed on the outer surface of the limiting plate 2771. One end of each connecting block 2774 near the collecting pipe 271 is fixedly connected to the outer surface of the limiting plate 2771, and the other end of each connecting block 2774 away from the limiting plate 2771 is fixedly connected to an extrusion plate 2775. An extrusion rod 2776 is fixedly connected to the outer surface of the extrusion plate 2775. When the sliding plate 274 drives the hook ring 276 to move continuously, the hook ring 276 drives the fallen leaves in the collection tube 271 to be removed through the slot 2772. Then, the extrusion rod 2776 squeezes the hook ring 276, thereby squeezing the leaves hooked on the hook ring 276 off. At the same time, due to the arc-shaped setting of the extrusion plate 2775, it can avoid the hook ring 276 from blocking the extrusion plate 2775 when it drives the leaves to move, thus preventing the sliding plate 274 from getting stuck.

[0040] Example 2, using Figures 1-9The oil-immersed wound core distribution transformer of the present invention will be described as follows.

[0041] like Figures 1-9 This invention provides an oil-immersed wound core distribution transformer based on Embodiment 1.

[0042] The connecting component 4 includes a base plate 41. Upper mounting brackets 42 are fixedly connected to both ends of the base plate 41. Fixed shafts 43 are evenly distributed on the inner wall of the upper mounting brackets 42. One end of the fixed shafts 43 near the base plate 41 is fixedly connected to the outer surface of the upper mounting brackets 42. A lower mounting bracket 45 is slidably connected to the end of the fixed shafts 43 away from the upper mounting brackets 42. The outer surface of the lower mounting bracket 45 contacts the inner wall of the upper mounting brackets 42. A third spring 44 is sleeved on the outer surface of the fixed shafts 43. One end of the third spring 44 near the base plate 41 is fixedly connected to the inner wall of the upper mounting brackets 42. The other end of the third spring 44 away from the upper mounting brackets 42 is fixedly connected to the inner wall of the lower mounting bracket 45. A filter plate 46 is fixedly connected to the inner wall of the base plate 41. A fixed plate 410 is fixedly connected to the end of the inner wall of the base plate 41 away from the filter plate 46. Ventilation openings 411 are evenly distributed on the outer surface of the fixed plate 410. A motor 49 is fixedly connected to the end of the base plate 41 away from the filter plate 46. A fan blade 47 is rotatably connected to the end of the filter plate 46 away from the motor 49. The output end of the motor 49 is fixedly connected to the inner wall of the fan blade 47. A scraping mechanism 48 is rotatably connected to the end of the filter plate 46 away from the fan blade 47. When installing the transformer 1, the transformer 1 is lifted up and the lower mounting bracket 45 is brought into contact with the installation platform before the transformer 1 is placed. When placing the transformer 1, the upper mounting bracket 42 is buffered by the lower mounting bracket 45 through the third spring 44, so as to avoid collisions and impact damage to the components inside the transformer 1 during the lifting and rotation of the transformer 1. When the transformer 1 is in use, the motor 49 is turned on, and the output end of the motor 49 drives the fan blade 47 to rotate on the fixed plate 410, thereby cooling the inside of the transformer 1. At the same time, the fan blade 47 rotates and drives the scraping mechanism 48 to rotate on the filter plate 46, thereby rotating and cleaning the outer surface of the filter plate 46.

[0043] The scraping mechanism 48 includes a rotating shaft 481. One end of the rotating shaft 481 near the base plate 41 is fixedly connected to the inner wall of the fan blade 47. Rotating shafts 481 are evenly distributed on the outer surface of the rotating shaft 481. The inner wall of the rotating shaft 481 is fixedly connected to the outer surface of the rotating frame 482. A rotating plate 483 is fixedly connected to one end of the rotating shaft 481 near the fan blade 47. Scratching plates 484 are evenly distributed on one end of the rotating plate 483 near the fan blade 47. The outer surface of the scraping plates 484 is fixedly connected to the inner wall of the rotating plate 483. The inner wall is uniformly provided with ejector pins 485. The outer surface of the ejector pins 485 is fixedly connected to the inner wall of the rotating plate 483. The output end of the motor 49 drives the fan blades 47 to rotate. At the same time, the fan blades 47 drive the rotating shaft 481 to rotate. The rotating shaft 481 drives the rotating frame 482 and the rotating plate 483 to rotate on the outer surface of the filter screen plate 46, so that the scraping plate 484 and the ejector pins 485 contact and rotate on the outer surface of the filter screen plate 46, thereby scraping off the impurities and flocculent dust adhering to the filter screen plate 46.

[0044] The specific workflow is as follows:

[0045] When in operation, after moving the transformer 1 to a suitable position, the transformer 1 is installed and fixed by the connecting part 4 using external screws. By setting the tilting part 2 on the top of the transformer 1, birds are prevented from building nests on the top of the transformer 1 after it is installed outdoors.

[0046] By setting an arc plate 22 on the top of the transformer 1, the inclined arc shape of the arc plate 22 can prevent birds from building nests on the surface of the arc plate 22, thereby avoiding safety hazards when the transformer 1 is used. At the same time, when it rains, the collection and storage of rainwater by the collection mechanism 27 can drive the connecting rod 26 to slide on the connecting shaft 24, thereby causing the connecting rod 26 to drive the contact mechanism 28 to contact and move the outer surface of the arc plate 22.

[0047] After collecting rainwater, the collecting mechanism 27 moves the connecting rod 26, causing the connecting rod 26 to slide the contact plate 281 on the outer surface of the arc plate 22. The connecting rod 26 drives the contact plate 281 to move downward continuously. The inner wall of the square groove 282 is provided with a telescopic rod 283 and a second spring 285. When the connecting rod 26 moves continuously, the scraper 284 is stretched by the second spring 285 and driven by the telescopic rod 283 to continuously abut against the outer surface of the arc plate 22, thereby making contact with the outer surface of the arc plate 22. This prevents bird nesting debris from remaining on the outer surface of the arc plate 22, thus avoiding safety hazards when the transformer 1 is in use.

[0048] During rainy days, rainwater enters the collection pipe 271 through the through hole 272 due to continuous rainfall. The sponge block 278 collects the rainwater, and the weight of the rainwater absorbed by the sponge block 278 drives the connecting rod 26 to move downward. When the rain stops, the rainwater in the collection pipe 271 can leak out through the through hole 272. When the weather clears, the water in the sponge block 278 evaporates, and the weight of the sponge block 278 is reduced, which can drive the connecting rod 26 to move back to its original position. By moving the guide plate 275, the guide plate 275 drives the sliding plate 274 to move in the inner wall of the collection pipe 271. This causes the sliding plate 274 to drive the hook ring 276 to move in the inner cavity of the collection pipe 271, so that the hook ring 276 can hook up the leaves that have fallen into the inner wall of the through hole 272 and the collection pipe 271. This is driven by the sliding plate 274. At the same time, the hook ring 276 contacts the squeezing component 277, thereby cleaning the leaves on the hook ring 276.

[0049] When the sliding plate 274 drives the hook ring 276 to move continuously, the hook ring 276 drives the fallen leaves in the collection tube 271 to be removed through the slot 2772. Then, the squeezing rod 2776 squeezes the hook ring 276, thereby squeezing the leaves hooked on the hook ring 276 off. At the same time, because the squeezing plate 2775 is arc-shaped, it can avoid the hook ring 276 from blocking the squeezing plate 2775 when it drives the leaves to move, thus preventing the sliding plate 274 from getting stuck.

[0050] When installing transformer 1, transformer 1 is lifted up and the lower mounting bracket 45 is brought into contact with the installation platform before transformer 1 is placed. When placing transformer 1, the upper mounting bracket 42 is buffered by the third spring 44 and the lower mounting bracket 45 to avoid collisions and impacts on the components inside transformer 1 during lifting and rotation. When transformer 1 is in use, motor 49 is turned on, and the output of motor 49 drives fan blade 47 to rotate on fixed plate 410 to dissipate heat from inside transformer 1. At the same time, the fan blade 47 rotates and drives scraping mechanism 48 to rotate on filter plate 46 to rotate and clean the outer surface of filter plate 46.

[0051] The motor 49 drives the fan blades 47 to rotate, and the fan blades 47 drive the rotating shaft 481 to rotate. The rotating shaft 481 drives the rotating frame 482 and the rotating plate 483 to rotate on the outer surface of the filter screen plate 46, so that the scraping plate 484 and the ejector pin 485 contact and rotate on the outer surface of the filter screen plate 46, thereby scraping off the impurities and flocculent dust adhering to the filter screen plate 46.

[0052] Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of the present invention without inventive effort should fall within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described and explained in the present invention, unless otherwise specified or limited, shall be implemented according to conventional means in the art.

Claims

1. An oil-immersed, wound-core distribution transformer, characterized in that, include: A transformer (1) has heat sinks (3) evenly arranged on its outer surface, and the outer surface of the heat sinks (3) is fixedly connected to the inner wall of the transformer (1). Inclined component (2), which is used to protect the transformer (1) from rain, and the bottom of the transformer (1) is fixedly connected to a connecting component (4). The bottom of the inclined component (2) is fixedly connected to the top of the transformer (1); The inclined component (2) includes a top plate (21), the bottom of which is fixedly connected to the top of the transformer (1). An arc plate (22) is fixedly connected to the top of the top plate (21). A sliding groove (23) is symmetrically opened on the outer surface of the arc plate (22). A connecting shaft (24) is fixedly connected to the inner wall of the arc plate (22). A first spring (25) is sleeved on the outer surface of the connecting shaft (24). A connecting rod (26) is slidably connected to the outer surface of the connecting shaft (24). A collecting mechanism (27) is fixedly connected to the top of the connecting rod (26). A contact mechanism (28) is fixedly connected to the side of the connecting rod (26) away from the connecting shaft (24). The contact mechanism (28) includes a contact plate (281), the inner wall of the contact plate (281) is fixedly connected to the outer surface of the connecting rod (26), the outer surface of the contact plate (281) is uniformly provided with square grooves (282), the inner wall of the square grooves (282) is fixedly connected with a telescopic rod (283), the end of the telescopic rod (283) away from the contact plate (281) is fixedly connected with a scraper (284), and the outer surface of the telescopic rod (283) is sleeved with a second spring (285). The collecting mechanism (27) includes a collecting tube (271), the inner wall of which is fixedly connected to the outer surface of the connecting rod (26), and through holes (272) are uniformly opened on the outer surface of the collecting tube (271). Sliding grooves (273) are uniformly opened on the outer surface of the collecting tube (271). A sliding plate (274) is slidably connected to the inner wall of the collecting tube (271). A guide plate (275) is fixedly connected to the outer surface of the sliding plate (274). Hooks (276) are uniformly arranged on the outer surface of the guide plate (275). One end of the hook (276) away from the through hole (272) is fixedly connected to the outer surface of the sliding plate (274). A squeezing component (277) is fixedly connected to the end of the collecting tube (271) away from the guide plate (275). A sponge block (278) is fixedly connected to the inner wall of the collecting tube (271).

2. The oil-immersed wound core distribution transformer according to claim 1, characterized in that: The outer surface of the connecting rod (26) is slidably connected to the inner wall of the groove (23), the bottom of the first spring (25) is fixedly connected to the inner wall of the top plate (21), and the top of the first spring (25) is fixedly connected to the outer surface of the connecting rod (26).

3. The oil-immersed wound core distribution transformer according to claim 1, characterized in that: The end of the scraper (284) away from the contact plate (281) is in contact with the outer surface of the arc plate (22), and the end of the second spring (285) away from the square groove (282) is fixedly connected to the inner wall of the scraper (284). The end of the second spring (285) away from the scraper (284) is fixedly connected to the inner wall of the square groove (282).

4. The oil-immersed wound core distribution transformer according to claim 1, characterized in that: The extrusion assembly (277) includes a limiting plate (2771), the outer surface of which is fixedly connected to the inner wall of the collecting tube (271), the outer surface of which is uniformly provided with slots (2772), the outer surface of which is provided with round holes (2773), the outer surface of which is uniformly provided with connecting blocks (2774), the end of which is close to the collecting tube (271) is fixedly connected to the outer surface of the limiting plate (2771), the end of which is away from the limiting plate (2771) is fixedly connected to an extrusion plate (2775), and the outer surface of which is fixedly connected to an extrusion rod (2776).

5. The oil-immersed wound core distribution transformer according to claim 1, characterized in that: The connecting component (4) includes a base plate (41), with upper mounting brackets (42) fixedly connected to both ends of the base plate (41). Fixed shafts (43) are evenly arranged on the inner wall of the upper mounting brackets (42). One end of the fixed shafts (43) near the base plate (41) is fixedly connected to the outer surface of the upper mounting brackets (42), and the other end of the fixed shafts (43) away from the upper mounting brackets (42) is slidably connected to a lower mounting bracket (45). A third spring (44) is sleeved on the outer surface of the fixed shafts (43). A filter screen plate (46) is fixedly connected to the inner wall of the base plate (41). A fixing plate (410) is fixedly connected to the end of the inner wall of the base plate (41) away from the filter plate (46). Ventilation openings (411) are evenly provided on the outer surface of the fixing plate (410). A motor (49) is fixedly connected to the end of the base plate (41) away from the filter plate (46). A fan blade (47) is rotatably connected to the end of the base plate (41) away from the motor (49). The output end of the motor (49) is fixedly connected to the inner wall of the fan blade (47). A scraping mechanism (48) is rotatably connected to the end of the filter plate (46) away from the fan blade (47).

6. The oil-immersed wound core distribution transformer according to claim 5, characterized in that: The outer surface of the lower mounting bracket (45) is in contact with the inner wall of the upper mounting bracket (42). The end of the third spring (44) near the base plate (41) is fixedly connected to the inner wall of the upper mounting bracket (42), and the end of the third spring (44) away from the upper mounting bracket (42) is fixedly connected to the inner wall of the lower mounting bracket (45).

7. The oil-immersed wound core distribution transformer according to claim 5, characterized in that: The scraping mechanism (48) includes a rotating shaft (481), one end of which near the base plate (41) is fixedly connected to the inner wall of the fan blade (47), the outer surface of which is uniformly provided with rotating shafts (481), the inner wall of which is fixedly connected to the outer surface of the rotating frame (482), a rotating plate (483) is fixedly connected to one end of which near the fan blade (47), a scraping plate (484) is uniformly provided to one end of which near the fan blade (47), the outer surface of which is fixedly connected to the inner wall of which is the rotating plate (483), and pins (485) are uniformly provided to the inner wall of which is the rotating plate (483), the outer surface of which is fixedly connected to the inner wall of which is the rotating plate (483).

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