An oil-immersed transformer with pollution prevention

Abstract

The present application relates to oil-immersed transformer technical field, specifically, a kind of anti-pollution oil-immersed transformer, including transformer body, still including support mechanism, flow guide mechanism and cleaning mechanism, the support mechanism is at the outside of cooling fin, the support mechanism is made of first baffle and second baffle, the first baffle and second baffle are used to shield the outside of cooling fin, the flow guide mechanism is made of carrier plate and multiple groups of flow guide vanes, the carrier plate is used to carry the rotation of multiple groups of flow guide vanes whole, the flow guide vane is used to guide the ambient airflow, the cleaning mechanism is made of frame and multiple silica gel scrapers, the frame is used to combine multiple silica gel scrapers, the silica gel scraper is used to scrape and clean the outer wall of cooling fin, can be carried out angular deflection by carrier plate to drive flow guide vane, flexible guide ambient airflow flow direction cooling fin, improve heat dissipation efficiency, and can adapt to different wind direction conditions.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of oil-immersed transformers, and particularly relates to an anti-pollution oil-immersed transformer. BACKGROUND

[0002] The oil-immersed transformer is a kind of transformer widely used in power systems, and its core feature is to realize insulation and heat dissipation through insulating oil (usually mineral oil). Its use mainly reflects in multiple fields such as power transmission, distribution and industrial applications, and the oil-immersed transformer is mainly composed of a core, a winding, an oil tank, a voltage regulating device, a radiator, an oil pillow, an insulating sleeve and an explosion-proof pipe. The core is composed of silicon steel sheets with good magnetic conductivity, forming a magnetic flux closed loop. The primary and secondary windings of the transformer are wound on the core, and the core is divided into core type and shell type structures. The core type core currently widely used is composed of a core column and an iron yoke, and has an oil channel inside the core for cooling the core, facilitating the circulation of transformer oil. The winding is the conducting loop of the transformer, which is wound into multiple layers of cylindrical shape using copper or aluminum wire. The primary and secondary windings are concentrically sleeved on the core column, with the low-voltage winding inside and the high-voltage winding outside. The insulating material is wrapped around the wire to ensure the insulation between the wires and the ground. The oil tank is the outer shell of the oil-immersed transformer, which is used to install other components in addition to oil. The regulating device is provided to ensure the stability of the secondary voltage of the transformer. When the power supply voltage changes, the regulating device is used to adjust the transformer tap changer to ensure the stability of the secondary side output voltage. The regulating device is divided into two types: on-load regulating device and no-load regulating device. The radiator is installed on the wall of the oil tank and is connected to the oil tank through pipes at the upper and lower parts. When there is a temperature difference between the upper and lower parts of the transformer, the radiator forms a convection of oil, and the cooled oil flows back to the tank, thereby reducing the temperature of the transformer oil. Self-cooling, forced air cooling and forced water cooling measures can be used. The oil pillow provides a buffer for the thermal expansion and contraction of the oil, keeps the oil tank always full of oil, and reduces the contact area between the oil and the air, thereby slowing down the oxidation of the oil. The high and low insulating sleeves are located on the top cover of the transformer tank, and are usually made of porcelain insulating sleeves. The function of the insulating sleeves is to maintain good insulation between the high and low voltage winding leads and the tank, and to fix the leads. The explosion-proof pipe is installed on the oil tank of the transformer, and the outlet is sealed with a glass explosion-proof membrane. When a serious fault occurs in the transformer and the gas relay fails, the gas in the tank will burst through the glass explosion-proof membrane and be sprayed out of the safety air duct, preventing the explosion of the transformer.

[0003] The oil-immersed transformer is based on the law of electromagnetic induction. When the primary winding is connected to an alternating current power supply, alternating magnetic flux is generated in the core, which passes through the primary and secondary windings and induces electromotive force on both sides. Due to the difference in the number of turns, the induced electromotive force is different in size, thereby realizing voltage transformation.

[0004] The oil-immersed transformer in the prior art has the following problems in use, although it has many benefits, the cooling of the transformer is not perfect, the oil-immersed transformer adopting a self-cooling radiator in the prior art performs heat dissipation and cooling through the heat dissipation fins distributed at multiple positions outside the oil tank, but it mainly relies on air flow to improve the heat dissipation efficiency of the transformer, therefore, the heat dissipation fins depend on the air flow direction, when the heat dissipation fins are arranged horizontally, the vertical air flow has low heat dissipation efficiency on the heat dissipation fins, resulting in poor adaptability of the transformer to the ambient air flow. SUMMARY

[0005] In view of the problems in the prior art, the present application provides an anti-pollution oil-immersed transformer.

[0006] The technical scheme adopted by the present application to solve the technical problem is an anti-pollution oil-immersed transformer, comprising a transformer body, heat dissipation fins arranged on both sides of the transformer body, the heat dissipation fins being used for heat dissipation of the transformer body, a supporting mechanism, a flow guiding mechanism and a cleaning mechanism.

[0007] The supporting mechanism is outside the heat dissipation fins, the supporting mechanism is composed of a first shielding plate and a second shielding plate, the first shielding plate and the second shielding plate being used for shielding the outside of the heat dissipation fins.

[0008] The flow guiding mechanism is composed of a bearing plate and multiple groups of flow guiding vanes, the bearing plate being used for rotating the multiple groups of flow guiding vanes as a whole, the flow guiding vanes being used for guiding the ambient air flow.

[0009] The cleaning mechanism is composed of a frame and multiple silica gel scrapers, the frame being used for combining the multiple silica gel scrapers, the silica gel scrapers being used for scraping and cleaning the outer wall of the heat dissipation fins.

[0010] By adopting the above technical scheme, the first shielding plate and the second shielding plate can shield the outside of the heat dissipation fins, which can reduce the direct adhesion of external dust and sundries on the heat dissipation fins, play an anti-pollution role, and do not affect the normal heat dissipation function of the heat dissipation fins, the flow guiding mechanism can deflect the angle of the flow guiding vanes through the bearing plate according to the detection data of the wind direction detection mechanism, flexibly guide the ambient air flow to the heat dissipation fins, improve the heat dissipation efficiency, and can adapt to different wind direction conditions, the rotation of the bearing plate can move the frame through the nylon rope, and the silica gel scrapers can scrape and clean the outer wall of the heat dissipation fins in a targeted manner, avoiding the accumulation of dust or bird droppings to affect heat dissipation.

[0011] Specifically, the first shielding plate and the second shielding plate are both screw-connected with buckle members on the outer walls of both sides, the buckle members being at the reinforcing ribs of the heat dissipation fins, the first shielding plate and the second shielding plate being assembled with the heat dissipation fins through the buckle members;

[0012] The connecting arms outside the first and second shielding plates are connected by screws to provide structural strength, and the connecting arms are designed in an arc shape towards the outer walls of the first and second shielding plates.

[0013] By adopting the above technical scheme, the buckle and the reinforcing ribs of the heat dissipation fin cooperate to enable the first and second shielding plates to be quickly assembled with the heat dissipation fin, and the connection is firm, facilitating later maintenance and disassembly. The connecting arms improve the overall structural strength of the first and second shielding plates, and the arc-shaped design is used to avoid blocking the rotation of the bearing plate, ensuring the smoothness of the rotation of the bearing plate.

[0014] Specifically, the support mechanism is provided with a wind direction detection mechanism at the upper end, the wind direction detection mechanism is composed of an angle sensor and a wind vane, the detection shaft end of the angle sensor is connected with the wind vane rod body by a pin shaft, the wind vane can rotate following the flow direction of the environmental airflow, and the angle sensor is used to detect the deflection angle of the wind vane.

[0015] The second shielding plate is provided with a driving motor at the lower end, and the driving motor is used to drive the bearing plate to rotate according to the detection data of the angle sensor.

[0016] By adopting the above technical scheme, the wind vane of the wind direction detection mechanism can rotate following the flow direction of the environmental airflow, and the angle sensor accurately detects the rotation angle, providing data basis for subsequent adjustment of the flow direction of the flow guide mechanism and optimization of the shielding angle of the guide plate. The driving motor drives the bearing plate to rotate according to the detection data of the angle sensor, realizes the linkage of wind direction detection and the flow guide mechanism, enables the flow guide vane to timely adjust the guide direction, and maximizes the use of environmental airflow for heat dissipation.

[0017] Specifically, a plurality of guide plates are bonded and fixed to the lower end surface of the first shielding plate, the guide plates are designed in a rhombus shape, the guide plates are between the multiple groups of flow guide vanes, and the guide plates are used to guide and support the movement track of the multiple groups of flow guide vanes.

[0018] A plurality of limiting plates are bonded and fixed to the upper end surface of the bearing plate, the limiting plates are between the multiple groups of flow guide vanes, and the limiting plates and the flow guide vanes are reserved with a gap for the entry and exit of the guide plates.

[0019] By adopting the technical scheme, the guide plates in the rhombus design are between the guide vanes, and play a guiding and supporting role on the moving track of the guide vanes, so that the guide vanes are in an inclined state in normal use, thereby forming a narrow tube effect between each group of guide vanes, so that the airflow flowing between the guide vanes can accelerate the flow of the airflow, and ensure the heat dissipation effect of the heat dissipation fin. The limiting plate reserves a gap for the guide plate to enter and exit, avoids the movement interference between the two, ensures the stable and smooth rotation process of the guide vane, and the cooperation of the guide plate and the limiting plate improves the coordination of the overall movement of the guide mechanism, and ensures that the guide vane can accurately and efficiently guide the airflow.

[0020] Specifically, the bearing plate is internally provided with a sliding channel, the sliding channel is internally provided with a limiting rod, the limiting rod is externally sleeved with a plurality of sliding blocks for limiting the moving track of the guide vane, the sliding block is internally provided with a rotating shaft, and the upper end of the rotating shaft is connected with the lower end of the guide vane through a pin shaft.

[0021] The outer side of the sliding block is provided with a torsional spring for providing a torsional force to the rotating shaft, and the two ends of the torsional spring are respectively connected with the rotating shaft and the outer wall of the sliding block.

[0022] The outer side of the limiting rod is sleeved with a plurality of supporting springs, the plurality of supporting springs are distributed between the plurality of groups of sliding blocks, and the plurality of groups of sliding blocks are kept apart through the elastic force of the supporting springs.

[0023] By adopting the technical scheme, the sliding block moves along the limiting rod in the sliding channel, cooperates with the torsional spring and the supporting spring, so that the guide vane can flexibly adjust the position and angle, adapt to different airflow conditions, ensure the airflow guiding effect, the supporting spring plays a supporting role between the sliding blocks, ensures that the distance between each group of sliding blocks and the guide vane is equal, thereby maintaining the distance between the guide vanes, and when the bearing plate carries the guide vane to rotate, the guide vane will be angularly deflected due to the guide plate, so the guide vane will rotate in the sliding block and drive the torsional spring to twist and store energy, and when the guide vane is separated from the guide of the guide plate, the torsional spring corresponding to each group of guide vanes can drive relative compression, so as to ensure that the position of each group of guide vanes is relatively stable, and the angle of the guide vane when guiding the wind direction is stable.

[0024] Specifically, the upper end surface of the guide vane is not in contact with the lower end surface of the first shielding plate.

[0025] By adopting the technical scheme, one side of the guide vane can be designed in a circular arc shape, which can reduce the resistance when the airflow passes through and improve the airflow guiding efficiency, and the upper end surface is not in contact with the lower end surface of the first shielding plate, thereby avoiding friction and wear between the two.

[0026] Specific, the frame is internally provided with a plurality of through holes, the inner wall of the through hole is provided with a silica gel scraper, the silica gel scraper has a cavity for accommodating the heat dissipation fin, and the silica gel scraper is used for scraping and cleaning the outer wall of the heat dissipation fin.

[0027] The outer wall of the frame is provided with a plurality of guide rods, the outer wall of the first and second shielding plates is symmetrically provided with a guide block, the guide block is internally reserved with a hole for the movement of the guide rod, the guide rod cooperates with the guide block to limit the movement track of the frame, and the guide rod is externally screwed with a positioning bolt, the positioning bolt maintains the position of the guide rod in the hole.

[0028] The outer side of the guide rod is sleeved with a supporting spring, and the supporting spring is used for supporting the position of the frame.

[0029] By adopting the above technical scheme, the cavity in the silica gel scraper accommodates the heat dissipation fin, can fully adhere to the outer wall of the heat dissipation fin for scraping and cleaning, effectively removes dust and dirt, ensures the heat dissipation effect, the guide rod cooperates with the guide block to limit the movement track of the frame, makes the cleaning process stable, the positioning bolt can fix the position of the guide rod, facilitates the control of the working state of the cleaning mechanism, and the supporting spring can ensure that the frame is stable at the position outside the heat dissipation fin when the bearing plate is not in the rotating state, avoids damaging the heat dissipation fin by the frame.

[0030] Specifically, the two sides of the upper end of the second shielding plate are provided with driving mechanisms, the driving mechanisms are composed of guide wheels and nylon ropes, and the outer side of the guide wheel is provided with a limiting ring for limiting the movement track of the nylon rope.

[0031] By adopting the above technical scheme, the limiting ring on the outer side of the guide wheel ensures the stable movement track of the nylon rope, and avoids the separation of the nylon rope from the guide of the guide wheel, when the bearing plate rotates, the two ends of the bearing plate are respectively connected with the nylon ropes, so that one end of the nylon rope is pulled and moves, and the other end of the nylon rope is released, when the nylon rope is pulled, the frame moves outside the heat dissipation fin, and the linkage of the guide mechanism and the cleaning mechanism is realized.

[0032] The beneficial effects of the present application are as follows:

[0033] The first shielding plate and the second supporting plate of the oil-immersed transformer can shield the outside of the heat dissipation fin, can reduce the direct adhesion of external dust and sundries on the heat dissipation fin, and can play a role in preventing pollution, and at the same time, does not affect the normal heat dissipation function of the heat dissipation fin.

[0034] The guide mechanism of the oil-immersed transformer can deflect the angle of the guide vane through the bearing plate according to the detection data of the wind direction detection mechanism, can flexibly guide the environmental airflow to the heat dissipation fin, can improve the heat dissipation efficiency, and can adapt to different wind direction conditions.

[0035] The oil-immersed transformer with the anti-pollution function has the bearing plate rotating to move the frame through the nylon rope, and the silica gel scraper can scrape and clean the outer wall of the heat dissipation fin in a targeted manner, so that the accumulation of dust or bird droppings on the heat dissipation fin is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0036] The application will be further described below in combination with the drawings and embodiments.

[0037] Figure 1 It is a schematic diagram of the main body structure of the transformer body of the application;

[0038] Figure 2 It is a rotating schematic diagram of the guide vane structure of the application;

[0039] Figure 3 It is a disassembled schematic diagram of the first shielding plate structure of the application;

[0040] Figure 4 It is a local enlarged schematic diagram of the first shielding plate structure of the application;

[0041] Figure 5 It is a flipped schematic diagram of the first shielding plate structure of the application;

[0042] Figure 6 It is an enlarged schematic diagram of the guide vane structure of the application;

[0043] Figure 7 It is an enlarged schematic diagram of the bearing plate structure of the application;

[0044] Figure 8 It is a disassembled schematic diagram of the bearing plate structure of the application;

[0045] Figure 9 It is a local disassembled schematic diagram of the limiting rod structure of the application.

[0046] In the drawings: 1, transformer body; 11, heat dissipation fin; 2, first shielding plate; 21, second shielding plate; 22, connecting arm; 23, buckle; 24, angle sensor; 25, wind vane; 26, guide block; 27, guide plate; 3, bearing plate; 31, limiting plate; 32, slide; 33, limiting rod; 34, sliding block; 35, top-holding spring; 36, rotating shaft; 37, torsional spring; 38, guide vane; 4, frame; 41, through hole; 42, silica gel scraper; 43, guide rod; 44, supporting spring; 45, positioning bolt; 5, guide wheel; 51, nylon rope. DETAILED DESCRIPTION

[0047] In order to make the technical means, creative features, purposes and effects achieved by the application easy to understand, the application will be further described below in combination with specific embodiments.

[0048] In order to save manpower and improve efficiency, as an embodiment of the present application, as shown in Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 The anti-pollution oil-immersed transformer of the present application comprises a transformer body 1, both sides of the transformer body 1 are provided with cooling fins 11, the cooling fins 11 are used for heat dissipation of the transformer body 1, and further comprises a supporting mechanism, a flow guiding mechanism and a cleaning mechanism;

[0049] The supporting mechanism is located outside the cooling fins 11 and is composed of a first shielding plate 2 and a second shielding plate 21, which are used for shielding the outside of the cooling fins 11;

[0050] The flow guiding mechanism is composed of a bearing plate 3 and multiple groups of flow guiding vanes 38, the bearing plate 3 is used for carrying the multiple groups of flow guiding vanes 38 to rotate as a whole, and the flow guiding vanes 38 are used for guiding the environmental airflow;

[0051] The cleaning mechanism is composed of a frame 4 and multiple silica gel scrapers 42, the frame 4 is used for combining the multiple silica gel scrapers 42, and the silica gel scrapers 42 are used for scraping and cleaning the outer wall of the cooling fins 11.

[0052] In use, the first shielding plate 2 and the second supporting plate can shield the outside of the cooling fins 11, which can reduce the direct adhesion of external dust and sundries on the cooling fins 11, play a role in preventing pollution, and at the same time, do not affect the normal heat dissipation function of the cooling fins 11. The flow guiding mechanism can deflect the angle of the flow guiding vanes 38 through the bearing plate 3 according to the detection data of the wind direction detection mechanism, flexibly guide the environmental airflow to the cooling fins 11, improve the heat dissipation efficiency, and adapt to different wind direction conditions. The rotation of the bearing plate 3 can drive the frame 4 to move through the nylon rope 51, and the silica gel scrapers 42 can be used to scrape and clean the outer wall of the cooling fins 11, so as to avoid the accumulation of dust or bird droppings affecting heat dissipation.

[0053] In order to ensure the use position, as shown in Figure 3 The first shielding plate 2 and the second shielding plate 21 are both screw-connected with buckle members 23 on the outer walls of both sides, the buckle members 23 are located at the reinforcing ribs of the cooling fins 11, and the first shielding plate 2 and the second shielding plate 21 are assembled with the cooling fins 11 through the buckle members 23;

[0054] The first shielding plate 2 and the second shielding plate 21 are externally connected with the connecting arm 22 for providing structural strength by screwing, and the connecting arm 22 is designed in an arc shape towards the outer wall of the first shielding plate 2 and the second shielding plate 21.

[0055] In use, the buckle 23 is matched with the reinforcing rib of the heat dissipation fin 11, so that the first shielding plate 2 and the second shielding plate 21 can be quickly assembled with the heat dissipation fin 11, and the connection is firm, which is convenient for later maintenance and disassembly. The connecting arm 22 improves the overall structural strength of the first shielding plate 2 and the second shielding plate 21, and the arc-shaped design is used to avoid blocking the rotation of the bearing plate 3, and to ensure the smoothness of the rotation of the bearing plate 3.

[0056] In order to detect the wind direction, for example, as shown in the figure, Figure 3 the upper end of the support mechanism is provided with a wind direction detection mechanism, which is composed of an angle sensor 24 and a wind vane 25. The detection shaft end of the angle sensor 24 is connected with the rod body of the wind vane 25 by a pin shaft, and the wind vane 25 can rotate following the flow direction of the environmental airflow. The angle sensor 24 is used to detect the deflection angle of the wind vane 25.

[0057] The lower end of the second shielding plate 21 is provided with a driving motor, which is used to drive the bearing plate 3 to rotate according to the detection data of the angle sensor 24.

[0058] The angle sensor 24 is screw-connected to the outer wall of the upper end of the first shielding plate 2, so as to ensure the stable use position of the angle sensor 24. The output end of the driving motor is connected with the shaft end of the bearing plate 3 by a shaft coupling, and the bearing plate 3 is installed on the outer wall of the second shielding plate 21 by a bearing.

[0059] In use, the wind vane 25 of the wind direction detection mechanism can rotate following the flow direction of the environmental airflow, and the angle sensor 24 accurately detects the rotation angle, which provides data basis for the subsequent adjustment of the flow direction of the flow guiding mechanism and the optimization of the shielding angle of the guide plate 27. Moreover, the driving motor drives the bearing plate 3 to rotate according to the detection data of the angle sensor 24, so as to realize the linkage of the wind direction detection and the flow guiding mechanism, so that the guide vane 38 can timely adjust the guide direction, and maximize the use of the environmental airflow for heat dissipation.

[0060] In order to guide the moving track, for example, as shown in the figure, Figure 5 the lower end surface of the first shielding plate 2 is adhesively fixed with a plurality of guide plates 27, the guide plates 27 are designed in a rhombus shape, the guide plates 27 are between the groups of guide vanes 38, and the guide plates 27 are used to guide and support the moving track of the groups of guide vanes 38.

[0061] The upper end surface of the bearing plate 3 is adhesively fixed with a plurality of limiting plates 31, the limiting plates 31 are between the groups of guide vanes 38, and the limiting plates 31 and the groups of guide vanes 38 are reserved with gaps for the guide plates 27 to enter and exit.

[0062] In use, the guide plates 27 of the diamond design are between the guide vanes 38, guiding and supporting the movement track of the guide vanes 38, so that the guide vanes 38 are in an inclined state in normal use, thereby forming a narrow tube effect between each group of guide vanes 38, so that the airflow between the guide vanes 38 accelerates the flow of the airflow, ensuring the heat dissipation effect of the heat dissipation fin 11. The limiting plate 31 leaves a gap for the guide plate 27 to enter and exit, avoiding movement interference between the two, ensuring the stability and smoothness of the rotation process of the guide vane 38. The cooperation of the guide plate 27 and the limiting plate 31 improves the coordination of the overall movement of the guide mechanism, ensuring that the guide vanes 38 can accurately and efficiently guide the airflow.

[0063] In order to limit the movement track, for example, as shown in Figure 9 The inside of the bearing plate 3 is provided with a slide 32, the inside of the slide 32 is provided with a limiting rod 33, the outside of the limiting rod 33 is provided with a plurality of sliding blocks 34 for limiting the movement track of the guide vanes 38, the inside of the sliding block 34 is provided with a rotating shaft 36, and the upper end of the rotating shaft 36 is connected with the lower end of the guide vane 38 through a pin shaft;

[0064] The outside of the sliding block 34 is provided with a torsional spring 37 for providing torsional force to the rotating shaft 36, and the two ends of the torsional spring 37 are connected with the outer wall of the rotating shaft 36 and the sliding block 34, respectively.

[0065] The outside of the limiting rod 33 is provided with a plurality of supporting springs 35, and the plurality of supporting springs 35 are distributed between the plurality of sliding blocks 34, and the plurality of sliding blocks 34 maintain a distance through the elastic force of the supporting springs 35.

[0066] The limiting rod 33 is threadedly connected with nuts on both sides, and the nuts are located on both sides of the bearing plate 3 and can maintain the use position of the limiting rod 33.

[0067] In use, the sliding block 34 moves along the limiting rod 33 in the slide 32, cooperates with the torsional spring 37 and the supporting spring 35, and adjusts the position and angle of the guide vane 38 flexibly, adapts to different airflow conditions, ensures the airflow guiding effect, and the supporting spring 35 supports between the sliding blocks 34, ensures that the distance between each group of sliding blocks 34 and guide vanes 38 is equal, thereby maintaining the distance between the guide vanes 38. When the bearing plate 3 carries the guide vanes 38 to rotate, the guide vanes 38 will be angularly deflected due to the guide plate 27, so the guide vanes 38 will rotate in the sliding block 34 and drive the torsional spring 37 to twist and store energy. When the guide vanes 38 are guided away from the guide plate 27, the corresponding torsional spring 37 of each group of guide vanes 38 can drive relative extrusion, ensuring that the position of each group of guide vanes 38 is relatively stable, and ensuring the angle stability of the guide vanes 38 when guiding the wind direction.

[0068] In order to guide the airflow, for example, as shown inFigure 6 As shown, the upper end surface of the guide vane 38 is not in contact with the lower end surface of the first shielding plate 2.

[0069] In use, one side of the guide vane 38 can be designed in a circular arc shape to reduce the resistance of the airflow passing through and improve the airflow guiding efficiency. The upper end surface is not in contact with the lower end surface of the first shielding plate 2 to avoid friction and wear between the two.

[0070] In order to clean the dirt, for example, as shown in Figure 4 As shown, a plurality of through holes 41 are formed in the frame 4, and a silica gel scraper 42 is arranged on the inner wall of the through hole 41. The silica gel scraper 42 has a cavity for accommodating the heat sink 11, and the silica gel scraper 42 is used to scrape and clean the outer wall of the heat sink 11.

[0071] A plurality of guide rods 43 are arranged on the outer wall of the frame 4, and guide blocks 26 are symmetrically arranged on the outer wall of the first shielding plate 2 and the second shielding plate 21. The guide blocks 26 have holes for the movement of the guide rods 43. The guide rods 43 cooperate with the guide blocks 26 to limit the movement trajectory of the frame 4. The guide rods 43 are screwed with positioning bolts 45 outside the holes. The positioning bolts 45 keep the position of the guide rods 43 in the holes.

[0072] Support springs 44 are arranged outside the guide rods 43 to support the position of the frame 4.

[0073] The silica gel scraper 42 is fixedly connected with the inner wall of the through hole 41, and the cavity of the silica gel scraper 42 is in contact with the outer wall of the heat sink 11. The guide rods 43 are connected with the frame 4 by screws, and the guide blocks 26 are connected with the first shielding plate 2 and the second shielding plate 21 by welding.

[0074] In use, the cavity in the silica gel scraper 42 accommodates the heat sink 11, which can fully adhere to the outer wall of the heat sink 11 for scraping and cleaning, effectively removing dust and dirt, and ensuring the heat dissipation effect. The guide rods 43 cooperate with the guide blocks 26 to limit the movement trajectory of the frame 4, making the cleaning process stable. The positioning bolts 45 can fix the position of the guide rods 43, which is convenient for controlling the working state of the cleaning mechanism. When the bearing plate 3 is not in a rotating state, the support springs 44 can ensure the stability of the position of the frame 4 outside the heat sink 11, avoiding damage to the heat sink 11 by the frame 4.

[0075] In order to drive the movement, for example, as shown in Figure 7 As shown, the upper end of the second shielding plate 21 is provided with a driving mechanism on both sides. The driving mechanism is composed of a guide wheel 5 and a nylon rope 51. The outer side of the guide wheel 5 is provided with a limiting ring for limiting the movement trajectory of the nylon rope 51.

[0076] In use, the limiting ring outside the guide wheel 5 ensures the stable movement track of the nylon rope 51, and avoids the nylon rope 51 from being separated from the guide of the guide wheel 5; when the bearing plate 3 rotates, since the bearing plate 3 is connected with the nylon rope 51 at two ends respectively, one end of the nylon rope 51 is pulled to move, and the other end of the nylon rope 51 is released; when the nylon rope 51 is pulled, the frame 4 is moved outside the heat dissipation fin 11, and the linkage of the guide mechanism and the cleaning mechanism is realized.

[0077] In use, the first shielding plate 2 and the second shielding plate 21 are connected and fixed with the reinforcing ribs of the heat dissipation fin 11 through the buckle 23, and the connecting arm 22 is in an arc-shaped structure to enhance the overall stability; the frame 4 is in an initial position outside the heat dissipation fin 11 under the support of the supporting spring 44; the guide vanes 38 are kept at uniform intervals under the action of the top-holding spring 35 and the torsional spring 37, and each group of the guide vanes 38 is in an open state under the support of the guide plate 27, so that a narrow pipe state is presented between the guide vanes 38, and the airflow velocity can be improved.

[0078] The wind direction detection mechanism at the upper end of the supporting mechanism monitors the environmental airflow in real time; the wind vane 25 rotates with the wind direction; the angle sensor 24 is connected with the pin shaft to accurately detect the deflection angle, and the data is transmitted to the controller used in conjunction;

[0079] When the rotation angle is greater than 20 degrees according to the detection data of the angle sensor 24, the driving motor is started to drive the bearing plate 3 to rotate; when the bearing plate 3 drives the plurality of guide vanes 38 to rotate as a whole, the guide vanes 38 are angularly deflected along the shape of the rhombic guide plate 27, the guide vanes move along the track, at the same time, the sliding block 34 slides in the slide 32 along the limiting rod 33, the top-holding spring 35 keeps the interval of the sliding block 34, and the torsional spring 37 provides a torsional force for the guide vanes 38 through the rotating shaft 36, so that the guide range of the guide vanes 38 to the airflow is expanded, and the use efficiency of the longitudinal airflow guidance is ensured.

[0080] When the bearing plate 3 rotates, the nylon rope 51 connected at two ends thereof is driven by the guide wheel 5 to pull at one end and release at the other end; when the nylon rope 51 pulls the frame 4, the guide rod 43 moves along the hole in the guide block 26, and the supporting spring 44 is compressed; the frame 4 drives the silica gel scraper 42 to move along the outer wall of the heat dissipation fin 11, and the cavity is used to clean the heat dissipation fin 11.

[0081] When the wind direction changes towards the heat dissipation fin 11, the driving motor reversely drives the bearing plate 3 to rotate; the guide vanes 38 are reset and adjusted in angle under the action of the torsional spring 37 and the guide plate 27; the limiting plate 31 leaves a gap to avoid motion interference, and ensures that the guide vanes 38 are reset and adjusted in angle under the action of the torsional spring 37 and the guide plate 27; at the same time, the release end of the nylon rope 51 pulls the frame 4 to move reversely, and the supporting spring 44 rebounds to assist the frame 4 to reset.

[0082] It should be noted that the present application is an anti-pollution oil-immersed transformer, the components in the present application are components known to those skilled in the art, and the structure and principle thereof can be known by those skilled in the art through a technical manual or through a conventional experimental method.

[0083] The basic principles, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. An anti-pollution oil-immersed transformer, comprising a transformer body (1), both sides of the transformer body (1) are provided with radiating fins (11) for heat dissipation of the transformer body (1), characterized in that, Also include support mechanism, guide mechanism and cleaning mechanism; The support mechanism is outside the heat dissipation fin (11), the support mechanism is composed of first baffle (2) and second baffle (21), the first baffle (2) and second baffle (21) are used to shield the outside of the heat dissipation fin (11); The guide mechanism is composed of bearing plate (3) and multiple groups of guide vanes (38), the bearing plate (3) is used to carry multiple groups of guide vanes (38) to rotate as a whole, and the guide vanes (38) are used to guide the ambient airflow; The cleaning mechanism is composed of frame (4) and multiple silica gel scrapers (42), the frame (4) is used to combine multiple silica gel scrapers (42), and the silica gel scraper (42) is used to scrape and clean the outer wall of the heat dissipation fin (11); The first baffle (2) is fixed with multiple guide plates (27) on the lower end surface, the guide plate (27) is designed in a rhombus shape, the guide plate (27) is between multiple groups of guide vanes (38), and the guide plate (27) is used to guide and support the moving track of multiple groups of guide vanes (38); The bearing plate (3) is fixed with multiple limit plates (31) on the upper end surface, the limit plate (31) is between multiple groups of guide vanes (38), and the limit plate (31) and each group of guide vanes (38) are reserved with a gap for the guide plate (27) to enter and exit; Multiple through holes (41) are formed in the frame (4), the silica gel scraper (42) is arranged on the inner wall of the through hole (41), the silica gel scraper (42) has a cavity for accommodating the heat dissipation fin (11), and the silica gel scraper (42) is used to scrape and clean the outer wall of the heat dissipation fin (11).

2. An oil-immersed transformer according to claim 1, wherein The first baffle (2) and the second baffle (21) are screw connected with buckle members (23) on the outer walls of the two sides, the buckle members (23) are at the reinforcing ribs of the heat dissipation fin (11), and the first baffle (2) and the second baffle (21) are assembled with the heat dissipation fin (11) through the buckle members (23); The first baffle (2) and the second baffle (21) are screw connected with connecting arms (22) outside for providing structural strength, and the connecting arms (22) are designed in an arc shape towards the outer walls of the first baffle (2) and the second baffle (21).

3. The pollution-resistant oil-immersed transformer according to claim 1, characterized in that, An air direction detection mechanism is arranged on the upper end of the support mechanism, the air direction detection mechanism is composed of an angle sensor (24) and a wind vane (25), the detection shaft end of the angle sensor (24) is connected with the rod body of the wind vane (25) through a pin shaft, the wind vane (25) can rotate following the flow direction of the ambient airflow, and the angle sensor (24) is used to detect the deflection angle of the wind vane (25); A driving motor is arranged on the lower end of the second baffle (21), and the driving motor is used to drive the bearing plate (3) to rotate according to the detection data of the angle sensor (24).

4. The pollution-resistant oil-immersed transformer according to claim 1, characterized in that, The bearing plate (3) is internally provided with a slide (32), the slide (32) is internally provided with a limiting rod (33), the limiting rod (33) is externally sleeved with a plurality of sliding blocks (34) for limiting the moving track of the guide vane (38), the sliding block (34) is internally provided with a rotating shaft (36), and the upper end of the rotating shaft (36) is connected with the lower end of the guide vane (38) through a pin shaft. The outer side of the sliding block (34) is provided with a torsional spring (37) for providing torsional force to the rotating shaft (36), and the two ends of the torsional spring (37) are connected with the outer wall of the rotating shaft (36) and the sliding block (34) respectively. The limiting rod (33) is externally sleeved with a plurality of top-holding springs (35), the plurality of top-holding springs (35) are distributed between the plurality of groups of sliding blocks (34), and the plurality of groups of sliding blocks (34) are kept apart through the elastic force of the top-holding springs (35).

5. The pollution-resistant oil-immersed transformer according to claim 1, characterized in that, The upper end surface of the guide vane (38) is not in contact with the lower end surface of the first shielding plate (2).

6. An oil-immersed transformer according to claim 1, wherein The outer wall of the frame (4) is provided with a plurality of guide rods (43), the outer wall of the first shielding plate (2) and the second shielding plate (21) is symmetrically provided with a guide block (26), the guide block (26) is internally reserved with a hole for the movement of the guide rod (43), the guide rod (43) cooperates with the guide block (26) to limit the moving track of the frame (4), the guide rod (43) is externally threadedly connected with a positioning bolt (45) protruding from the hole, and the positioning bolt (45) keeps the position of the guide rod (43) in the hole; The outer side of the guide rod (43) is sleeved with a supporting spring (44), and the supporting spring (44) is used for supporting the position of the frame (4).

7. An oil-immersed transformer according to claim 1, wherein The upper end of the second shielding plate (21) is provided with a driving mechanism on both sides, the driving mechanism is composed of a guide wheel (5) and a nylon rope (51), and the outer side of the guide wheel (5) is provided with a limiting ring for limiting the moving track of the nylon rope (51).

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