High safety phase-shifting transformer

Abstract

The application discloses a high-safety phase-shifting transformer and relates to the field of transformers, which comprises a transformer main body provided with a heat dissipation fan, a bearing frame installed on the transformer main body, a filter assembly corresponding to the heat dissipation fan installed on the bearing frame, a sand protection structure arranged in the bearing frame and axially sliding along the filter assembly under the driving of a driving device. In the moving process, the sliding frame drives a plurality of plugging assemblies to rotate, so that the plugging assemblies close the inner rotating frame and abut on the filter assembly, thereby providing support force for the filter assembly and avoiding damage of the filter assembly under the action of the sand. Meanwhile, the filter assembly is plugged to avoid the sand from entering the transformer and affecting the normal work of the transformer, prevent the transformer from having faults such as electric leakage and series current, and further improve the safety and service life of the transformer.

Description

Technical Field

[0001] This invention relates to the field of transformers, and in particular to a high-safety phase-shifting transformer. Background Technology

[0002] Phase-shifting transformers are widely used in power systems. By changing the phase relationship, they can effectively improve the stability and power quality of the power system.

[0003] Outdoor transformers typically rely on ventilation windows and fans for heat dissipation. However, during sandstorms or dusty weather, the storms bring not only polluted air but also large amounts of sand and dust, which can damage the transformer's insulation. Transformers exposed to dusty environments are more susceptible to insulation erosion from sand and gravel, leading to reduced electrical insulation and lower insulation strength, potentially causing faults such as leakage and cross-current. Furthermore, the accumulation of sand and dust can hinder heat dissipation from the heaters and coolers, affecting the transformer's normal operation. Therefore, during sandstorms or dusty weather, immediate power outages are usually implemented to prevent the transformer from operating under abnormal conditions, and the transformer and surrounding area are cleaned of dust after the sandstorm to maintain normal equipment operation.

[0004] The traditional transformer suffers from insufficient protection capabilities of its filter components in windy and sandy environments.

[0005] 1. When the transformer is de-energized, it cannot effectively prevent a large amount of sand and dust from entering through the ventilation openings. Under the action of wind and sand, a large amount of sand and dust will still accumulate inside the transformer.

[0006] 2. In severe weather conditions such as wind and sandstorms, continuous wind and sand impact can cause the filter screen to deform and break, allowing dust and debris to enter the transformer, affecting insulation performance and increasing the risk of faults such as leakage and cross-current.

[0007] 3. If the filter components are clogged and not cleaned in time, it will lead to a decrease in ventilation efficiency, a deterioration in the heat dissipation of the transformer, and a tendency to overheat during long-term operation, thus shortening the service life of the equipment.

[0008] Therefore, it is necessary to invent a high-safety phase-shifting transformer to solve the above problems. Summary of the Invention

[0009] The purpose of this invention is to provide a high-safety phase-shifting transformer to solve the problems mentioned in the background art, such as the transformer's inability to effectively prevent a large amount of sand and dust from entering through the ventilation opening when the power is off, and the resulting deformation and damage of the filter screen due to continuous wind and sand impact.

[0010] To achieve the above objectives, the present invention provides the following technical solution: a high-safety phase-shifting transformer, comprising:

[0011] The transformer body is equipped with a cooling fan;

[0012] The support frame is installed on the transformer body, and the support frame is equipped with filter components corresponding to the cooling fan.

[0013] The sandstorm protection structure is installed inside the supporting frame and slides along the axial direction of the filter assembly under the drive of the drive device. When the sandstorm protection structure moves toward the filter assembly, it drives several sealing components installed in the sandstorm protection structure to close, closely adhere to the filter assembly, and provide internal support and sealing for the filter assembly. When the sandstorm protection structure moves away from the filter assembly, it drives several sealing components to unblock the filter assembly.

[0014] The exhaust assembly, installed on the outside of the transformer body and above the supporting frame, is used to exhaust heat from inside the transformer body.

[0015] Optionally, the wind and sand protection structure includes:

[0016] The drive unit is mounted on the transformer body and located inside the supporting frame;

[0017] A sliding frame is located inside the receiving frame and moves closer to or further away from the filter assembly under the drive of the drive device;

[0018] The sealing assembly is rotatably mounted on a sliding frame;

[0019] The guiding device is installed between the sliding frame and the transformer body. When the sliding frame moves, the guiding device pushes or pulls the sealing component to rotate, so that the sealing component closes or releases the sliding frame.

[0020] Optionally, the guiding device includes:

[0021] Two hinged frames are provided, which are rotatably mounted on the sliding frame and the transformer body, respectively;

[0022] The waist bar; its two ends are respectively hinged to two hinge frames.

[0023] Optionally, the sliding frame includes an inner rotating frame and an outer rotating frame that are rotatably connected and interlocked, with the outer rotating frame connected to the guiding device.

[0024] The inner rotating frame is pushed along the axis by the drive device and is fitted onto the outside of the filter assembly or away from the filter assembly;

[0025] When the outer rotating frame moves, it is pulled or pushed by the guide device and driven by the transmission structure to rotate the sealing component, thereby closing or releasing the inner rotating frame.

[0026] The directional support device is installed on the inner rotating frame and the outer rotating frame, and drives the inner rotating frame and the outer rotating frame to translate axially under the drive of the drive device.

[0027] Optionally, the transmission structure includes:

[0028] The end gear is fixed on the outer rotating frame and located between the outer rotating frame and the inner rotating frame, and rotates with the outer rotating frame.

[0029] The helical gear is fixed to the end of the sealing assembly and drives the sealing assembly to rotate under the drive of the end face gear.

[0030] Optionally, the sliding frame includes

[0031] The main frame moves under the drive of the drive device, following the directional support device.

[0032] The gear, located inside the frame body and fixed to the hinge frame, rotates relative to the frame body under the drive of the hinge frame.

[0033] A gear ring, which is located inside the frame body and meshes with a gear;

[0034] The end face gear is rotatably mounted inside the frame body and meshes with the helical gear, and is fixed together with the gear ring. When the gear rotates, it drives the helical gear to rotate through the transmission of the gear ring.

[0035] Optionally, the plugging assembly includes:

[0036] The sealing plate is rotatably installed in the central channel of the sliding frame and is fixedly connected to the helical gear.

[0037] The sealing gasket is bonded to the outside of the sealing plate, and the sealing plate is pressed against two adjacent sealing gaskets in the closed state.

[0038] Optional, also includes:

[0039] Cleaning device, the cleaning device comprising:

[0040] A polygonal sleeve, which is fixedly connected to a sliding frame via a supporting rod;

[0041] A polygonal rod, which passes through the filter assembly and the polygonal sleeve, is rotatably connected to the frame of the cooling fan;

[0042] Multiple cleaning brushes are provided and fixedly mounted on the ends of polygonal rods, and clean the filter assembly as they rotate.

[0043] Optionally, the filtering component includes:

[0044] The outer frame is fixedly installed on the receiving frame and inserted into the sliding frame when the filter components are blocked.

[0045] The filter screen is fixedly installed inside the outer frame and comes into contact with the sealing plate when the filter assembly is blocked.

[0046] Optionally, the exhaust assembly includes:

[0047] The exhaust frame is fixedly installed on the outside of the transformer body;

[0048] A wind deflector, which is hinged inside the exhaust frame, is used to block the exhaust frame.

[0049] A coil spring is installed at the connection between the wind deflector and the exhaust frame.

[0050] The technical effects and advantages of this invention are as follows:

[0051] 1. During the movement of the sliding frame of this invention, multiple sealing components rotate, causing the sealing components to close the inner rotating frame and abut against the filter component. The filter component provides internal support and sealing, which not only provides support for the filter component and prevents it from being damaged by wind and sand, but also isolates the transformer's internal cavity from the outside world by sealing the filter component, preventing wind and sand from entering the transformer and affecting its normal operation, preventing faults such as leakage and cross-current inside the transformer, and further improving the safety and service life of the transformer.

[0052] 2. In the process of sliding frame movement, the guide device drives the outer rotating frame to rotate relative to the inner rotating frame. The outer rotating frame drives the cleaning device to rotate, thereby cleaning the filter assembly. This reduces maintenance costs and workload, and ensures timely cleaning of the filter assembly, thus improving the ventilation effect of the filter assembly and the efficiency of the heat dissipation system.

[0053] 3. The exhaust component of this invention can automatically open when the transformer is running normally to ensure smooth ventilation; when the transformer and cooling fan stop running or the external wind force is large, the exhaust component can automatically close to prevent external debris from entering the transformer body, protect the internal structure of the transformer, and further improve the safety and reliability of the transformer. Attached Figure Description

[0054] Figure 1 This is a schematic diagram of the structure of the present invention;

[0055] Figure 2 This is a schematic diagram of the internal structure of the supporting frame of the present invention;

[0056] Figure 3 This is a schematic diagram of the guiding device structure of the present invention;

[0057] Figure 4 This is a schematic diagram of the support rod structure of the present invention;

[0058] Figure 5 This is a schematic diagram of the cleaning device of the present invention;

[0059] Figure 6 This is a schematic diagram of the centering frame structure of the present invention;

[0060] Figure 7 This is a schematic diagram of the blocked state structure of the filter component of the present invention;

[0061] Figure 8 This is a schematic diagram of the sealing component of the present invention;

[0062] Figure 9 This is a schematic diagram of the coil spring structure of the present invention;

[0063] Figure 10 This is a schematic diagram of the structure of Embodiment 2 of the present invention;

[0064] Figure 11 This is a schematic diagram of the gear structure of the present invention;

[0065] Figure 12 This is a schematic diagram of the structure of Embodiment 2 of the sliding frame of the present invention.

[0066] In the diagram: 100, transformer body;

[0067] 200. Cooling fan;

[0068] 300. Supporting frame; 310. Filter assembly; 311. Outer frame; 312. Filter screen; 320. Guide rod;

[0069] 400. Drive unit;

[0070] 500, Sliding frame; 510, Inner rotating frame; 520, Outer rotating frame; 530, End face gear; 540, Polygonal sleeve; 550, Supporting rod; 560, Centering frame; 570, First positioning plate; 580, Second positioning plate; 5A1, Frame body; 5A3, Gear ring; 5A4, Gear;

[0071] 600. Guiding device; 610. Waist bar; 620. Hinge frame;

[0072] 700. Sealing assembly; 710. Sealing plate; 720. Helical gear; 730. Sealing gasket;

[0073] 800. Cleaning device; 810. Polygonal rod; 820. Cleaning brush;

[0074] 900. Exhaust assembly; 910. Exhaust frame; 920. Baffle plate; 930. Coil spring. Detailed Implementation

[0075] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0076] Example 1

[0077] This invention provides, for example Figure 1-9 The high-safety phase-shifting transformer shown includes:

[0078] The transformer body 100 is equipped with a cooling fan 200. When the cooling fan 200 is started, the transformer body 100 is subjected to forced air cooling. At the same time, the cooling fan 200 and the transformer body 100 are started or stopped simultaneously.

[0079] The supporting frame 300 is installed on the transformer body 100. The supporting frame 300 is equipped with a filter component 310 corresponding to the cooling fan 200. The inner cavity of the transformer body 100 is connected to the outside through the filter component 310. The supporting frame 300 is equipped with a sand and dust protection structure. The filter component 310 is used to filter dust and impurities in the air, effectively preventing the intrusion of foreign objects such as dust, willow catkins, and insects, ensuring a clean operating environment for core components and ensuring heat dissipation effect.

[0080] The sandstorm protection structure consists of a drive device 400, a sliding frame 500, and a guide device 600. Driven by the drive device 400, the sliding frame 500 slides axially along the filter assembly 310. As the sliding frame 500 moves toward the filter assembly 310, it drives several sealing components 700 to close and tightly support and seal the filter assembly 310 from the inside. When the sandstorm protection structure moves away from the filter assembly 310, it drives the sealing components 700 to release the seal. The sealed components 700 provide internal support and seal for the filter assembly 310, providing support and preventing damage from sandstorms. Simultaneously, by sealing the filter assembly 310, the internal cavity of the transformer body 100 is isolated from the outside, preventing sandstorms from entering the transformer and affecting its normal operation. This also prevents internal leakage, cross-current, and other faults, further improving the transformer's safety and service life.

[0081] In this invention, the sealing component 700 can be implemented using several existing structures; for example, a translational sealing baffle can be used, which can be moved horizontally or vertically with the cooperation of the driving device 400 and the sliding frame 500, thereby moving to the inside of the filter component 310 and supporting and sealing the filter component 310; when the sealing baffle moves away from the filter component 310, the inner cavity of the transformer body 100 can be connected to the outside through the filter component 310.

[0082] Similarly, the sealing assembly 700 can also adopt the rotary sealing baffle described below. The sealing baffle can rotate with the cooperation of the drive device 400 and the sliding frame 500. When it rotates to a set angle, several sealing baffles form a complete plane that overlaps in sequence, and move to the inside of the filter assembly 310 to support and seal the filter assembly 310. When the sealing baffle moves away from the filter assembly 310 and rotates to the initial angle, the gap between several sealing baffles forms an airflow channel, and the inner cavity of the transformer body 100 can be connected to the outside through the filter assembly 310.

[0083] Similarly, the sealing assembly 700 can also use two sealing baffles with several holes as in the prior art. When the two sealing baffles are misaligned under the cooperation of the drive device 400 and the sliding frame 500, they form a complete plane and move to the inside of the filter assembly 310 to support and seal the filter assembly 310. When the sealing baffles move away from the filter assembly 310 and rotate to the initial angle, the gap between the sealing baffles forms an airflow channel, and the inner cavity of the transformer body 100 can be connected to the outside through the filter assembly 310.

[0084] As can be seen from the above, the sealing component 700 can be implemented using several existing technologies, which will not be elaborated here;

[0085] The exhaust assembly 900 is installed on the outside of the transformer body 100 and above the supporting frame 300. Under the action of air pressure (airflow), it promptly exhausts the heat generated inside the transformer body 100, ensuring that the equipment can still operate stably in high-temperature environments.

[0086] In this invention, the exhaust assembly 900 can employ several existing structures to achieve exhaust. Utilizing baffles and springs, when cold air from the outside enters the transformer body 100, it causes heat to flow upwards, and under the action of the cooling fan 200, it pushes the baffle 920 to open, expelling the hot air. The exhaust assembly 900 can automatically open under the action of wind force when the transformer and cooling fan 200 are operating normally, ensuring smooth exhaust. When the transformer and cooling fan 200 stop operating or the outside wind force is strong, the exhaust assembly 900 can automatically close to prevent external debris from entering the transformer body 100, protecting the internal structure of the transformer and further improving the safety and reliability of the transformer.

[0087] As can be seen from the above, the sealing component 700 can be implemented using several existing technologies, which will not be elaborated here;

[0088] The working principle of this embodiment is as follows:

[0089] In the event of windy or dusty weather, the transformer and cooling fan 200 are shut down, and the drive device 400 is turned on by relying on the reserve power. The drive device 400 drives the sliding frame 500 to move towards the filter assembly 310, so that the sliding frame 500 is fitted on the outside of the filter assembly 310 and drives the sealing assembly 700 to close the sliding frame 500 and abut against the filter assembly 310.

[0090] After a sandstorm or dust storm, start the drive unit 400 to reset the sliding frame 500 and move it away from the filter assembly 310. During the reset, the sliding frame 500 drives the sealing assembly 700 to rotate and open the sliding frame 500. Then, start the transformer and the cooling fan 200. The cooling fan 200 transports cold air from the outside to the inside of the transformer body 100, which increases the air pressure inside the transformer body 100 and drives the hot air to flow upward, so that the hot air is discharged through the exhaust assembly 900.

[0091] In some embodiments of the present invention, reference is made to... Figure 3-6 As shown,

[0092] Wind and sand protection structures include:

[0093] The drive device 400 is mounted on the transformer body 100 and located inside the support frame 300, providing power to drive the sliding frame 500 to move; in this embodiment, the drive device 400 can be implemented using various existing technologies such as linear motors, hydraulic rods or electric push rods.

[0094] A sliding frame 500 is disposed inside the receiving frame 300 and moves closer to or further away from the filter assembly 310 under the drive of the driving device 400. This causes the sealing assembly 700 to move synchronously with the sliding frame 500. The sealing assembly 700 closes or opens to support and seal or remove the support and sealing of the inner side of the filter assembly 310. The sealing assembly 700 is rotatably mounted on the sliding frame 500. After several sealing assemblies 700 rotate from an initial angle to a set angle, they can form a plane and closely adhere to the inner side of the filter assembly 310, thereby supporting and sealing the inner side of the filter assembly 310. When several sealing assemblies 700 rotate back to the initial angle and move away from the inner side of the filter assembly 310, they can contact the support and sealing of the inner side of the filter assembly 310.

[0095] The guiding device 600 is installed between the sliding frame 500 and the transformer body 100. The guiding device 600 drives the sealing component 700 to rotate when it moves synchronously with the sliding frame 500, so that the sliding frame 500 drives the sealing component 700 to close or open during the movement, thereby enabling the sealing component 700 to support and seal the filter component 310.

[0096] In this invention, the guiding device 600 can adopt the combination of gears and worms, gear transmission and / or thread transmission in the prior art. During the movement of the sliding frame 500, it drives the sliding frame 500 to rotate (the inner and outer parts of the sliding frame 500 rotate relative to each other). This allows the sliding frame 500 to normally drive the blocking component 700 to rotate during the movement, thereby closing the middle channel of the sliding frame 500 and moving it to the inside of the filter component 310 to support and block the filter component 310, or opening the middle channel of the sliding frame 500 and moving it away from the filter component 310.

[0097] Similarly, the guide device 600 can also adopt the combination of rod and hinge as described below. The guide device 600 can pull or push the sliding frame 500 to rotate (the inner and outer parts of the sliding frame 500 rotate relative to each other) during the movement of the sliding frame 500, so that the sliding frame 500 can normally drive the blocking component 700 to rotate during the movement, close the middle channel of the sliding frame 500 and move it to the inside of the filter component 310 to support and block the filter component 310, or open the middle channel of the sliding frame 500 and move it away from the filter component 310.

[0098] In some embodiments of the present invention, reference is made to... Figure 3-5 As shown, the guiding device 600 includes:

[0099] Two hinge frames 620 are provided and rotatably mounted on the sliding frame 500 and the transformer body 100, respectively. The hinge frames 620 can rotate flexibly, thereby adjusting the angle of the waist rod 610. This allows the waist rod 610 to change angles accordingly under the action of the hinge frames 620, ensuring the stability and flexibility of the waist rod 610 under different working conditions, and driving the sliding frame 500 to rotate.

[0100] The waist bar 610, with its two ends hinged to two hinged frames 620 respectively, serves as the main adjustment structure and is used to connect and adjust the sliding frame 500 so that the sliding frame 500 can rotate normally during movement.

[0101] The working principle of this embodiment is as follows:

[0102] During the movement of the outer rotating frame 520, it will pull or push the waist bar 610, so that the waist bar 610 adjusts the distance between the sliding frame 500 and the transformer body 100 by rotating, and at the same time, pushes the sliding frame 500 to rotate locally by a certain angle.

[0103] In some embodiments of the present invention, reference is made to... Figure 3-6 As shown, an inner rotating frame 510 and an outer rotating frame 520 are fitted together and rotatably connected. The outer rotating frame 520 is connected to the hinge frame 620. The inner rotating frame 510 is pushed by the drive device 400 and moves axially to fit on the outside of the filter assembly 310 or away from the filter assembly 310 to prevent sand and dust from entering the filter assembly 310 and affecting the normal operation of the transformer body 100. The outer rotating frame 520 is pulled or pushed by the guide device 600 and drives the sealing assembly 700 to rotate through the transmission structure to close or release the inner rotating frame 510.

[0104] In this invention, the transmission structure can adopt the gear transmission structure in the prior art. Through the cooperation of gear and worm, the sealing component 700 is driven to rotate during the movement of the sliding frame 500, thereby closing or releasing the inner rotating frame 510.

[0105] Similarly, the transmission structure can also use the gear engagement described below to drive the sealing assembly 700 to rotate during the movement of the sliding frame 500, thereby closing or releasing the inner rotating frame 510.

[0106] The directional support device is installed on the inner rotating frame 510 and the outer rotating frame 520, and drives the inner rotating frame 510 and the outer rotating frame 520 to translate axially under the drive of the drive device 400.

[0107] In this invention, the directional support device can be implemented by using several existing structures to achieve the sealing; by utilizing the through-fitting of the frame plate and the guide rod, the inner rotating frame 510 and the outer rotating frame 520 are supported when they slide, and at the same time, the sliding of the inner rotating frame 510 and the outer rotating frame 520 is guided.

[0108] Similarly, the sealing assembly 700 can also adopt the centering structure and positioning plate described below to support the inner rotating frame 510 and the outer rotating frame 520 when they slide, and at the same time guide the sliding of the inner rotating frame 510 and the outer rotating frame 520.

[0109] In this invention, the directional support device includes:

[0110] Two centering frames 560 are sleeved on the outer side of the inner rotating frame 510. The two centering frames 560 are used to ensure the stability of the inner rotating frame 510 during rotation. A first positioning plate 570 connected to the drive device 400 is fixedly installed on the outer side of the centering frame 560. The first positioning plate 570 is connected to the drive device 400 by bolt fixing to achieve precise transmission and positioning.

[0111] A second positioning plate 580, which is connected to the drive device 400, is fixedly installed on the front side of the inner rotating frame 510. The second positioning plate 580 is also connected to the drive device 400 by bolt fixing. The arrangement of the two second positioning plates 580 ensures that the inner rotating frame 510 will not rotate during movement.

[0112] A guide rod 320 is installed between the transformer body 100 and the supporting frame 300, passing through the first positioning plate 570 and the second positioning plate 580. The guide rod 320 serves to reinforce the supporting frame 300 and to support and guide the first positioning plate 570 and the second positioning plate 580 to ensure the stability of the first positioning plate 570 and the second positioning plate 580 when they move.

[0113] The working principle of this embodiment is as follows:

[0114] During the movement of the inner rotating frame 510 and the outer rotating frame 520, the outer rotating frame 520 rotates under the guidance of the guiding device 600 (driven by the guide forming). Since the inner rotating frame 510 is restricted by the second positioning plate 580 and the guide rod 320, the outer rotating frame 520 rotates relative to the inner rotating frame 510. During the rotation, the sealing assembly 700 is driven to rotate through the transmission structure, so that multiple sealing assemblies 700 rotate and abut together to close the inner rotating frame 510.

[0115] In some embodiments of the present invention, reference is made to... Figure 3 and Figure 5 As shown, the transmission structure includes:

[0116] The end face gear 530 is fixed on the outer rotating frame 520 and located between the outer rotating frame 520 and the inner rotating frame 510. It rotates with the outer rotating frame 520 and drives the sealing assembly 700 under the drive of the outer rotating frame 520. The end face gear 530 ensures the stable operation of the sealing assembly 700 through meshing transmission.

[0117] The helical gear 720 is fixed to the end of the sealing assembly 700 and drives the sealing assembly 700 to rotate under the drive of the end face gear 530.

[0118] The transmission ratio between the end face gear 530 and the helical gear 720 can be adjusted according to the actual situation. The method of adjusting the transmission ratio is to change the size of the end face gear 530 and the helical gear 720.

[0119] In some embodiments of the present invention, reference is made to... Figure 3-8 As shown, the plugging assembly 700 includes:

[0120] The sealing plate 710 is rotatably mounted on the inner rotating frame 510, allowing the sealing plate 710 to rotate relative to the inner rotating frame 510 to achieve flexible sealing operation;

[0121] The sealing gasket 730 is bonded to the outside of the sealing plate 710 and is pressed against two adjacent sealing gaskets 730 to form multiple sealing layers, ensuring that the sealing assembly 700 has excellent sealing performance and preventing leakage.

[0122] Among them, the face gear 530 is a type of gear that meshes with a spur gear or helical gear 720 at a 90-degree axial angle. The central axes of the pinion and the face gear 530 are perpendicular, and the two perpendicular central axes can intersect or be offset. The face gear 530 is mainly used in industries such as helicopters, fishing reels, watches, and bicycles. Its heavy-duty and smooth transmission characteristics have a wide range of applications.

[0123] The sealing plate 710 can also be closed by overlapping, which halves the thickness on both sides of the sealing plate 710 and achieves positioning by overlapping the half-rear positions of two adjacent sealing plates 710.

[0124] The working principle of this embodiment is as follows:

[0125] When the outer rotating frame 520 rotates, it will drive the end face gear 530 to rotate, and the end face gear 530 will drive the helical gear 720 to rotate during the rotation, which will drive the sealing plate 710 to rotate, so that the two adjacent sealing plates 710 come into contact and can rotate to a flat state by squeezing the sealing gasket 730.

[0126] In some embodiments of the present invention, reference is made to... Figure 3 and Figure 5 As shown, it also includes a cleaning device 800, which includes:

[0127] The polygonal sleeve 540 is fixedly connected to the outer rotating frame 520 via the receiving rod 550 and is sleeved on the outside of the cleaning device 800. This allows the outer rotating frame 520 to drive the cleaning brush 820 to rotate synchronously during rotation, enabling the cleaning brush 820 to perform its function more effectively. Furthermore, the rotatable connection between the polygonal sleeve 540 and the inner rotating frame 510 restricts the center position of the inner rotating frame 510 without affecting the rotation of the polygonal sleeve 540.

[0128] The polygonal rod 810 rotatably passes through the filter assembly 310 and the polygonal sleeve 540 and is rotatably connected to the frame of the cooling fan 200. A rotatable cylinder is provided at the connection between the polygonal rod 810 and the filter assembly 310. The design of the polygonal rod 810 enables it to rotate with the outer rotating frame 520, ensuring smooth operation during the cleaning process.

[0129] Multiple cleaning brushes 820 are provided and fixedly installed at the end of the polygonal rod 810. They clean the filter assembly 310 when rotating, effectively cleaning the filter assembly 310 during rotation, removing accumulated dust and impurities, thereby maintaining the high efficiency performance of the filter assembly 310.

[0130] In some embodiments of the present invention, reference is made to... Figure 3 As shown, the filter assembly 310 includes:

[0131] The outer frame 311 is fixedly installed on the receiving frame 300 and inserted into the inner rotating frame 510 when the filter assembly 310 is blocked. The outer frame 311 is firmly fixed to the receiving frame 300 by means of rivets or bolts, providing a stable structure.

[0132] The filter screen 312 is fixedly installed inside the outer frame 311 and contacts the sealing plate 710 when the filter assembly 310 is blocked. The filter screen 312 is installed at the opening of the outer frame 311 near the transformer body 100 to reduce the impact of wind on the filter screen 312. The function of the filter screen 312 is to filter impurities and particulate matter in the fluid to ensure the purity of the fluid.

[0133] In some embodiments of the present invention, reference is made to... Figure 9 and Figure 2 As shown, the exhaust assembly 900 includes:

[0134] The exhaust frame 910 is fixedly installed on the outside of the transformer body 100 to support and protect the entire exhaust system. The exhaust frame 910 has a protrusion inside that contacts the wind baffle 920 to prevent the wind baffle 920 from opening under the action of external wind force.

[0135] The wind baffle 920 is hinged inside the exhaust frame 910 and is used to block the exhaust frame 910. It can be opened and closed flexibly through the hinge structure to block the exhaust frame 910 and prevent external dust and foreign objects from entering the transformer.

[0136] The coil spring 930 is installed at the connection between the wind deflector 920 and the exhaust frame 910. It automatically resets using the spring force to ensure that the wind deflector 920 can be quickly closed when not in use, thus maintaining the transformer's airtightness.

[0137] The working principle of this embodiment is as follows:

[0138] When cold air from the outside enters the transformer body 100, it causes heat to flow upwards, and under the action of the wind, it pushes the baffle 920 to open, expelling the hot air.

[0139] The working method of this invention:

[0140] In the event of windy or dusty weather, the transformer and cooling fan 200 are shut down, and the drive device 400 is turned on by relying on the reserve power. The drive device 400 drives the inner rotating frame 510 and the outer rotating frame 520 to move toward the filter assembly 310. During the movement, the sealing plate 710 is driven to close the inner rotating frame 510. After the inner rotating frame 510 moves to the designated position, it is sleeved on the outside of the filter assembly 310 and drives the sealing plate 710 to abut against the filter assembly 310, thus sealing the filter assembly 310.

[0141] During the movement of the inner rotating frame 510 and the outer rotating frame 520, the waist rod 610 is pulled or pushed, causing the waist rod 610 to adjust the distance between the outer rotating frame 520 and the transformer body 100 by rotation. At the same time as adjusting the distance, the outer rotating frame 520 is pushed to rotate at a certain angle, so that the outer rotating frame 520 rotates relative to the inner rotating frame 510. When the outer rotating frame 520 rotates, it drives the end face gear 530 to rotate, and the end face gear 530 drives the helical gear 720 to rotate during the rotation. The helical gear 720 drives the sealing plate 710 to rotate, so that the two adjacent sealing plates 710 come into contact and can rotate to a flat state by squeezing the sealing gasket 730, thus sealing the inner rotating frame 510.

[0142] After a sandstorm or dust storm, the drive unit 400 is activated, causing the inner rotating frame 510 and the outer rotating frame 520 to reset and move away from the filter assembly 310. During the reset, the outer rotating frame 520 drives the sealing assembly 700 to rotate and open the inner rotating frame 510. Then, the transformer and the cooling fan 200 are activated. The cooling fan 200 transports cold air from the outside to the inside of the transformer body 100, increasing the air pressure inside the transformer body 100 and causing hot air to flow upwards, so that the hot air is discharged through the exhaust assembly 900.

[0143] Example 2

[0144] Reference Figure 10-12 As shown, the specific difference between it and Embodiment 1 is that the sliding frame 500 includes

[0145] The frame body 5A1 is connected to the hinge frame 620 and the centering frame 560, and guides several sealing plates 710 set in the frame body 5A1. The frame body 5A1 is fixedly connected to the polygonal sleeve 540 through the support rod 550. When moving, the sealing plates 710 are driven to close the frame body 5A1, so that the frame body 5A1 is fitted on the outside of the outer frame 311.

[0146] Gear 5A4 is located inside the frame body 5A1 and fixed to the hinge frame 620, and rotates relative to the frame body 5A1 under the drive of the hinge frame 620.

[0147] Gear ring 5A3 is disposed inside the frame body 5A1 and meshes with gear 5A4, and rotates under the drive of gear 5A4;

[0148] The end face gear 530 is rotatably mounted inside the frame body 5A1 and meshes with the helical gear 720, and is fixed together with the gear ring 5A3. When the gear 5A4 rotates, the helical gear 720 is driven to rotate through the transmission of the gear ring 5A3.

[0149] During the movement of the frame body 5A1, the hinge frame 620 rotates relative to the frame body 5A1, causing the hinge frame 620 to drive the gear ring 5A3 to rotate through the gear 5A4, thereby driving the helical gear 720. At the same time, the transmission ratio can be adjusted according to the size of the gear 5A4 and the helical gear 720.

[0150] The working method of this invention:

[0151] During the movement of the frame body 5A1, the waist bar 610 will be pulled or pushed, causing the guide device 600 to adjust the distance between the frame body 5A1 and the transformer body 100 by rotation. While adjusting the distance, the frame body 5A1 will be rotated by a certain angle. At the same time, the waist bar 610 will also drive the hinge frame 620 to rotate relative to the frame body 5A1. When the hinge frame 620 rotates, it will drive the gear ring 5A3 to rotate through the gear 5A4. The gear ring 5A3 will drive the helical gear 720 to rotate through the end face gear 530. The helical gear 720 will drive the sealing plate 710 to rotate, so that the two adjacent sealing plates 710 will come into contact and can rotate to a flat state by squeezing the sealing gasket 730, thus sealing the inner rotating frame 510. Conversely, the sealing will be released.

[0152] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A high safety phase-shifting transformer, characterized by, The utility model relates to a high safety phase shifting transformer, including: The transformer body is installed with the heat dissipation fan; The bearing frame is installed on the transformer body, and the filter assembly corresponding with the heat dissipation fan is installed on the bearing frame; The wind and sand protection structure is arranged in the inside of bearing frame, and is driven to slide along the filter assembly under the drive of the drive device; When moving to the filter assembly, the wind and sand protection structure is driven to close the several blocking assemblies arranged in the wind and sand protection structure, tightly abutting the filter assembly and supporting and blocking the inside of the filter assembly; When moving away from the filter assembly, the several blocking assemblies are driven to cancel the blocking of the filter assembly; The exhaust assembly is installed on the outside of transformer body and is located above the bearing frame, and is used for discharging the heat inside the transformer body; The wind and sand protection structure includes: The drive device is installed on the transformer body and is located in the inside of bearing frame; The sliding frame is arranged in the inside of bearing frame and is driven to move close to or away from the filter assembly under the drive of the drive device; The blocking assembly is rotatably installed on the sliding frame; The guide device is installed between the sliding frame and the transformer body, and the sliding frame is driven to rotate the blocking assembly under the push or pull of the guide device when moving, so that the blocking assembly blocks or unblocks the sliding frame; The sliding frame includes the inner rotating frame and the outer rotating frame which are sleeved and rotatably connected, and the outer rotating frame is connected with the guide device; The inner rotating frame is translated along the axial under the push of the drive device, and is sleeved on the outside of the filter assembly or moves away from the filter assembly; The outer rotating frame is driven to rotate the blocking assembly under the pull or push of the guide device when moving, and blocks or unblocks the inner rotating frame through the transmission structure; The directional support device is installed on the inner rotating frame and the outer rotating frame, and drives the inner rotating frame and the outer rotating frame to translate along the axial under the drive of the drive device; The transmission structure includes: The face gear is fixed on the outer rotating frame between the outer rotating frame and the inner rotating frame, and rotates with the outer rotating frame; The helical gear is fixed on the end of the blocking assembly, and is driven to rotate the blocking assembly under the drive of the face gear.

2. The high safety phase shifting transformer according to claim 1, wherein: The guide device includes: The hinged frame is provided with two and is rotatably installed on the sliding frame and the transformer body respectively; The waist rod is hinged at both ends with the two hinged frames.

3. The high safety phase shifting transformer according to claim 1, wherein: The blocking assembly includes: The blocking plate is rotatably installed in the center channel of the sliding frame and is fixedly connected with the helical gear; The sealing pad is bonded on the outside of the blocking plate, and the blocking plate is extruded with the adjacent two sealing pads in the closed state.

4. The high safety phase shifting transformer according to claim 1, further comprising: The cleaning device includes: The polygon sleeve is fixedly connected with the sliding frame through the bearing rod; The polygon rod is rotatably connected with the frame of the heat dissipation fan through the filter assembly and the polygon sleeve. ​ Cleaning brushes are provided in plurality and fixedly installed at the end of the polygonal rod and clean the filter assembly when rotating.

5. The high safety phase-shifting transformer according to claim 3, characterized in that: The filter assembly comprises: An outer frame is fixedly installed on the receiving frame and inserted into the sliding frame when the filter assembly is blocked; A filter screen is fixedly installed inside the outer frame and in contact with the blocking plate when the filter assembly is blocked.

6. The high safety phase-shifting transformer according to claim 1, characterized in that: The air exhaust assembly comprises: An air exhaust frame is fixedly installed on the outside of the transformer body; A wind deflector is hingedly connected inside the air exhaust frame for blocking the air exhaust frame; A coil spring is installed at the connection between the wind deflector and the air exhaust frame.

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