A lightning protection dry-type transformer

Abstract

The present invention discloses a lightning protection dry-type transformer, which relates to the technical field of transformers and includes a box body and a protection component. A lightning protection box is fixedly installed on the top of the box body. When in use, the anemometer is started. When the detected wind speed exceeds the set maximum working threshold, the PLC controller controls the forward and reverse motor to start, driving the two driving gears, the two rotating rods and the two driven gears to rotate in the reverse direction. The two insulating rods are respectively driven to rotate in the reverse direction through the two chains, so that the two insulating reinforcing rods are respectively rotated out from the corresponding movable holes, and the two support clips are clamped on the outer surface of the needle body of the lightning rod. Through the support component, the two support clips are clamped at the needle body of the lightning rod to form a circular fixing ring. With the cooperation of the insulating reinforcing rod and the insulating rod, the supporting force is increased, a stable structure is formed, the overall stability is improved, the action of wind force is better resisted, and the shaking amplitude is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of transformers, and specifically to a lightning protection dry-type transformer. Background Technique

[0002] A dry-type transformer refers to a transformer in which the iron core and windings are not impregnated in insulating oil. It relies on air convection for cooling and has the characteristics of being difficult to burn, flame retardant, fireproof, explosion-proof, and environmentally friendly and pollution-free. It is widely used in places with high fire protection requirements and places with high environmental requirements. At present, oil-immersed transformers are usually used for the box-type transformers in domestic onshore wind farm projects. Oil-immersed transformers have the risk of oil leakage, which may even pollute water sources or soil, and may cause fire in case of serious failures. In addition, oil-immersed transformers require more maintenance work every year, and oil filtering or oil change will be arranged when necessary, and the operation and maintenance costs are relatively high, affecting the power generation of the wind farm. When using box-type transformers with dry-type transformers, the above environmental protection and fire protection risks can be avoided.

[0003] In the prior art, as the Chinese patent publication number: CN217306252U, a lightning protection dry-type transformer is disclosed, which includes a lower bracket, an upper yoke is detachably connected inside the lower bracket, a winding is detachably connected to the upper end surface of the lower bracket, an upper bracket is detachably connected to the upper end surface of the winding, an upper yoke is detachably connected inside the upper bracket, a fixing seat is fixedly connected to the upper end surface of the upper bracket, a lightning rod is detachably connected to the upper end surface of the fixing seat, the winding is composed of insulating paper, a skeleton, a coil and an iron core, an iron core is detachably connected inside the skeleton, a coil is wound around the outside of the skeleton, and insulating paper is wrapped around the outside of the coil. By providing a lightning rod, the lightning rod can enable the dry-type transformer to have a good lightning protection effect, so that the dry-type transformer can be well protected from damage. When using the lightning rod, the lightning rod is grounded, which greatly improves the service life of the dry-type transformer.

[0004] In the prior art, a lightning protection dry-type transformer is a transformer that adds a lightning protection function on the basis of an ordinary dry-type transformer. It can effectively prevent damage to the transformer caused by lightning overvoltage and improve the operation reliability and safety of the transformer. During the use of the lightning protection dry-type transformer, the needle body of the lightning rod used for lightning protection on the top of the dry-type transformer is generally relatively slender. When encountering strong wind weather, the needle body is easily affected by the strong wind, resulting in the lightning rod shaking. Over time, it is easy to cause the connection between the lightning rod and the dry-type transformer to become loose or broken, and even damage the top structure of the dry-type transformer, and it will also affect the lightning protection effect of the dry-type transformer.

[0005] Therefore, we propose a lightning protection dry-type transformer to solve the problems raised in the above background technique. Summary of the Invention

[0006] The object of the present invention is to provide a lightning protection dry-type transformer to solve the problems in the above-mentioned background technology. During the use of the lightning protection dry-type transformer, when encountering strong wind weather, the lightning rod is prone to shaking. Over time, it is easy to cause the connection between the lightning rod and the dry-type transformer to become loose or broken, and even damage the top structure of the transformer, and it will also affect the lightning protection effect of the dry-type transformer.

[0007] To achieve the above object, the present invention provides the following technical solution: A lightning protection dry-type transformer includes a box body and a protection component. A lightning protection box is fixedly installed on the top of the box body. A lightning rod body is installed at the center of the top of the box body through bolts. A support component and a guiding component are arranged inside the lightning protection box. The support component is used to assist in supporting the lightning rod body during strong winds, and the guiding component is used to assist in guiding the lightning current safely to the ground. The protection component is used to protect the support component and the guiding component;

[0008] The support component includes two fixed seats. Rotating rods are movably embedded inside both of the two fixed seats. One end of each of the two rotating rods is fixedly installed with a driving gear, and the other end of each of the two rotating rods is fixedly installed with a driven gear. A forward and reverse motor is fixedly installed on the bottom surface inside the lightning protection box. The outer surfaces of both of the two driven gears are meshed with a chain, and the inner walls of both of the two chains are meshed with a rotating gear. One side outer surface of each of the two rotating gears is fixedly installed with an insulating rod, and insulating reinforcement rods are fixedly installed on the outer surfaces of both of the two insulating rods. One end of each of the two insulating reinforcement rods is fixedly installed with a support clip, and protective strips are fixedly connected to the inner walls of both of the two support clips near both sides.

[0009] Preferably, the output end of the forward and reverse motor is fixedly connected to the outer surface of one of the driving gears. The outer surfaces of the two driving gears are meshed with each other. Two fixing plates are movably sleeved on the outer surfaces of both of the two insulating rods, and the bottoms of both of the two fixing plates are fixedly installed on the bottom surface inside the lightning protection box.

[0010] Preferably, the guiding component includes a U-shaped insulating tube. A U-shaped conductive rod is fixedly installed inside the U-shaped insulating tube. Conductive columns are fixedly installed on the outer surface of the U-shaped conductive rod near both ends. A downlead is fixedly connected to the outer surface of the U-shaped conductive rod. Protective sleeves are fixedly installed on the outer surface of the U-shaped insulating tube near both ends. Lightning attracting rods are fixedly installed inside both of the two insulating reinforcement rods.

[0011] Preferably, conductive sheets are fixedly connected to the inner walls of both of the two support clips. One end of each of the two lightning attracting rods respectively penetrates through the inside of the two support clips, and one end of each of the two lightning attracting rods is fixedly connected to the outer surface of each of the two conductive sheets. The other end of each of the two lightning attracting rods is fixedly installed with a current conducting rod.

[0012] Preferably, inclined conductive rods are fixedly installed on the outer surfaces of both of the two lead-conducting rods. One ends of the two inclined conductive rods respectively penetrate through the outer surfaces of the two insulating rods. Insulating sleeves are fixedly sleeved on the outer surfaces of the two inclined conductive rods. One side outer surfaces of the two insulating sleeves are respectively fixedly installed on the outer surfaces of the two insulating rods.

[0013] Preferably, one ends of the two conductive columns respectively penetrate through the outer surface of the U-shaped insulating tube. The outer surfaces of the two conductive columns are respectively fixedly installed on the inner walls of the two protective sleeves. One end of the down-lead penetrates through the U-shaped insulating tube and the lightning protection box to the outer surface. A plurality of connecting rods are fixedly installed at a position close to the bottom on the outer surface of the U-shaped insulating tube.

[0014] Preferably, the bottom ends of the plurality of connecting rods are all fixedly installed on the inner bottom surface of the lightning protection box. Embedded grooves are formed in the interiors of the two insulating rods. Two ends of the two lead-conducting rods are respectively fixedly installed on two sides inside the two embedded grooves.

[0015] Preferably, the protection assembly includes a mounting plate. An electric push rod is fixedly installed inside the mounting plate. One end of the electric push rod is fixedly installed with a moving plate. Two support rods are movably embedded inside the moving plate. One ends of the two support rods are all fixedly installed on the outer surface of the lightning protection box. The top of the moving plate is fixedly installed with a U-shaped plate. Two protection plates are fixedly installed on one side outer surface of the U-shaped plate. Two sliding columns are fixedly installed at the bottoms of the two protection plates.

[0016] Preferably, two moving holes are formed in the top of the lightning protection box. Sealing rings are fixedly connected to the top of the lightning protection box close to the two moving holes. Two sliding grooves are formed in the top of the lightning protection box close to the two moving holes. The bottom ends of the plurality of sliding columns are respectively movably embedded inside the plurality of sliding grooves. The outer surface of the mounting plate is fixedly installed on the inner top surface of the lightning protection box. One end of the electric push rod movably penetrates through the outer surface of the lightning protection box.

[0017] Preferably, an anemometer is arranged at a position close to one side of the top of the box body. A PLC controller is fixedly installed on the inner bottom surface of the lightning protection box close to the rear wall. A bottom plate is fixedly installed on the inner bottom surface of the box body. A dry-type transformer body is arranged on the top of the bottom plate. A fan is arranged at the bottom of the dry-type transformer body. An installation hole is formed in the center of the top of the lightning protection box. The lightning rod body is located inside the installation hole. A drain groove is formed in the bottom of the lightning protection box. The bottoms of the two fixing seats are all fixedly installed on the inner bottom surface of the lightning protection box.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] 1. When the present invention is in use, start the anemometer. When the detected wind speed exceeds the set maximum working threshold, the PLC controller controls the forward and reverse motor to start, driving the two driving gears, the two rotating rods and the two driven gears to rotate in the reverse direction. The two insulating rods are respectively driven to rotate in the reverse direction through the two chains, so that the two insulating reinforcement rods are respectively rotated out from the corresponding movable holes, and the two support clips are clamped on the outer surface of the needle body of the lightning rod body. Through the support assembly, the two support clips are clamped at the needle body of the lightning rod body to form a circular fixing ring. With the cooperation of the insulating reinforcement rod and the insulating rod, the needle body part of the lightning rod body is supported assistantly, the supporting force is increased, a stable structure is formed, the overall stability is improved, the action of wind force is better resisted, and the shaking amplitude is reduced.

[0020] 2. When the present invention is in use, the lightning rod body attracts lightning to itself, and safely introduces the lightning current into the ground through the lead wire and the grounding device, thereby protecting the transformer from damage caused by lightning overvoltage. Through the support assembly, the two conductive sheets are in contact with the outer surface of the lightning rod body. At the same time, one end of the two inclined conductive rods rotates into the corresponding conductive columns. Part of the current on the lightning rod body will flow to the two conductive sheets, and then the lightning attracting rod and the current conducting rod conduct the current to the inclined conductive rods, and conduct the current to the U-shaped conductive rod through the conductive columns. Finally, the current is safely led to the ground through the down conductor and the grounding device. The support assembly and the guiding assembly cooperate to share part of the lightning current, thereby reducing the burden on the lightning rod body and guiding the lightning current to the ground more quickly, thereby improving the lightning protection effect of the transformer.

[0021] 3. When the present invention is in use, the output end of the forward and reverse motor rotates in the reverse direction, driving the insulating reinforcement rod and the support clip to leave from the needle body of the lightning rod body. At this time, the conductive sheet is not in contact with the lightning rod body, which can avoid the conductive sheet accidentally leading current due to other factors in non-lightning weather and reduce unnecessary safety risks. When in use, start the electric push rod, pull the moving plate and the U-shaped plate to move towards the lightning rod body, and push the protection plate to move to the top of the two sealing rings to shield and protect the two movable holes, preventing dust and impurities from falling on the conductive sheet through the movable holes and affecting the subsequent conductive effect of the conductive sheet. Description of the Drawings

[0022] Figure 1 is the front perspective view of a lightning protection dry-type transformer of the present invention;

[0023] Figure 2 is the structural unfolded perspective view of the dry-type transformer body in a lightning protection dry-type transformer of the present invention;

[0024] Figure 3 is the structural sectional unfolded perspective view of the protection assembly in a lightning protection dry-type transformer of the present invention;

[0025] Figure 4It is a structural sectional view and unfolded three-dimensional view of a lightning protection box in a lightning protection dry-type transformer of the present invention;

[0026] Figure 5 It is a structural sectional view and unfolded three-dimensional view of a protective plate in a lightning protection dry-type transformer of the present invention;

[0027] Figure 6 It is a structural unfolded three-dimensional view of a sealing ring in a lightning protection dry-type transformer of the present invention;

[0028] Figure 7 It is a structural sectional view and unfolded three-dimensional view of a guiding component in a lightning protection dry-type transformer of the present invention;

[0029] Figure 8 It is a structural unfolded three-dimensional view of a supporting component in a lightning protection dry-type transformer of the present invention;

[0030] Figure 9 It is a structural sectional view and unfolded three-dimensional view of an insulating rod in a lightning protection dry-type transformer of the present invention;

[0031] Figure 10 It is a structural sectional view and unfolded three-dimensional view of a supporting clamp in a lightning protection dry-type transformer of the present invention;

[0032] Figure 11 It is a structural unfolded three-dimensional view of a U-shaped conducting rod in a lightning protection dry-type transformer of the present invention;

[0033] Figure 12 Figure 11 An enlarged three-dimensional view at position A;

[0034] Figure 13 It is a structural unfolded three-dimensional view of a fixed seat for employees in a lightning protection dry-type transformer of the present invention.

[0035] In the figure: 1. Box body; 2. Lightning protection box; 3. Lightning rod body; 4. Protection component; 401. Mounting plate; 402. Electric push rod; 403. Moving plate; 404. Support rod; 405. U-shaped plate; 406. Protection plate; 407. Slide groove; 408. Slide column; 409. Activity hole; 410. Sealing ring; 5. Anemometer; 6. Bottom plate; 7. Fan; 8. Support component; 801. Fixed seat; 802. Rotating rod; 803. Reversible motor; 804. Fixed plate; 805. Insulating rod; 806. Driving gear; 807. Insulating reinforcement rod; 808. Rotating gear; 809. Chain; 810. Support clamp; 811. Driven gear; 812. Protection strip; 813. Insulating sleeve; 814. Embedded groove; 9. Guide component; 901. U-shaped insulating pipe; 902. Connecting rod; 903. Protection sleeve; 904. U-shaped conducting rod; 905. Down conductor; 906. Conducting column; 907. Lightning attracting rod; 908. Conducting sheet; 909. Conducting lead rod; 910. Inclined conducting rod; 10. Dry-type transformer body; 11. Mounting hole; 12. PLC controller; 13. Drainage groove. Detailed implementation manner

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0037] Example 1: Please refer to Figures 1 - 13As shown in the figure, the present invention provides a technical solution: a lightning protection dry-type transformer, including a box body 1 and a protection component 4. A lightning protection box 2 is fixedly installed on the top of the box body 1. A lightning rod body 3 is installed at the center of the top of the box body 1 through bolts. A support component 8 and a guiding component 9 are arranged inside the lightning protection box 2. The support component 8 is used to assist in supporting the lightning rod body 3 in strong winds, and the guiding component 9 is used to assist in guiding the lightning current safely to the ground. The protection component 4 is used to protect the support component 8 and the guiding component 9; the support component 8 includes two fixed seats 801. Rotating rods 802 are movably embedded inside both of the two fixed seats 801. Active gears 806 are fixedly installed at one ends of the two rotating rods 802. Driven gears 811 are fixedly installed at the other ends of the two rotating rods 802. A positive and negative motor 803 is fixedly installed on the bottom surface inside the lightning protection box 2. Chains 809 are meshed and connected to the outer surfaces of the two driven gears 811. Rotating gears 808 are meshed and connected to the inner walls of the two chains 809. Insulating rods 805 are fixedly installed on the outer surfaces of one sides of the two rotating gears 808. Insulating reinforcement rods 807 are fixedly installed on the outer surfaces of the two insulating rods 805. Support clips 810 are fixedly installed at one ends of the two insulating reinforcement rods 807. Protective strips 812 are fixedly connected to the inner walls of the two support clips 810 near both sides. The output end of the positive and negative motor 803 is fixedly connected to the outer surface of one of the active gears 806. The outer surfaces of the two active gears 806 are meshed and connected. Two fixing plates 804 are movably sleeved on the outer surfaces of the two insulating rods 805. The bottoms of the two fixing plates 804 are fixedly installed on the bottom surface inside the lightning protection box 2. Two moving holes 409 are opened on the top of the lightning protection box 2. Sealing rings 410 are fixedly connected to the top of the lightning protection box 2 near the two moving holes 409. Two sliding grooves 407 are opened on the top of the lightning protection box 2 near the two moving holes 409. The bottom ends of multiple sliding columns 408 are respectively movably embedded inside the multiple sliding grooves 407. The outer surface of the mounting plate 401 is fixedly installed on the top surface inside the lightning protection box 2. One end of the electric push rod 402 movably penetrates to the outer surface of the lightning protection box 2. An anemometer 5 is arranged on the top of the box body 1 near one side. A PLC controller 12 is fixedly installed on the bottom surface inside the lightning protection box 2 near the rear wall. A bottom plate 6 is fixedly installed on the bottom surface inside the box body 1. A dry-type transformer body 10 is arranged on the top of the bottom plate 6. A blower 7 is arranged at the bottom of the dry-type transformer body 10. An installation hole 11 is opened at the center of the top of the lightning protection box 2. The lightning rod body 3 is located inside the installation hole 11. A drain groove 13 is opened at the bottom of the lightning protection box 2. The bottoms of the two fixed seats 801 are fixedly installed on the bottom surface inside the lightning protection box 2.

[0038] In this embodiment, during use, the electric push rod 402, the anemometer 5, the forward and reverse motor 803 and the PLC controller 12 are electrically connected, and the PLC controller 12 is wirelessly connected to an external console. The lightning protection dry-type transformer mainly consists of a box body 1, a lightning rod body 3, a bottom plate 6, a dry-type transformer body 10 and a fan 7. Among them, the dry-type transformer body 10 mainly includes an iron core, windings and an insulation system. The iron core is the magnetic circuit part of the dry-type transformer and is laminated by silicon steel sheets. The windings are the circuit part of the dry-type transformer and are wound by copper or aluminum wires. The function of the windings is to transmit electrical energy, and transfer the electrical energy on the primary side to the secondary side through electromagnetic induction. The insulation system is an important part of the dry-type transformer, and it includes winding insulation, iron core insulation and lead insulation, etc. The function of the insulation system is to ensure the electrical insulation performance of the transformer, and prevent short circuits or electric leakage from occurring between windings, between the winding and the iron core, and between the winding and the shell. The dry-type transformer body 10 is an existing mature technology, so its specific working principle will not be elaborated here too much. When a thundercloud approaches the ground, due to the electric field intensity at the tip of the lightning rod body 3 being much higher than that of other surrounding objects, the air near the lightning rod body 3 is ionized, forming a local strong electric field. Under the action of the strong electric field, the air is ionized to generate a large number of electrons and ions, forming a conductive channel. When the electric field intensity between the charges in the thundercloud and the charges on the ground reaches a certain level, the lightning will discharge along this conductive channel towards the lightning rod body 3. The lightning rod body 3 attracts the lightning to itself, and safely introduces the lightning current into the ground through the lead wire and the grounding device, thereby protecting the transformer from damage by lightning overvoltage, and thus achieving the lightning protection effect.When encountering strong wind weather, the anemometer 5 is activated to detect the wind speed around the dry-type transformer body 10. The detected wind speed information is transmitted to the PLC controller 12 in the form of an electrical signal. The maximum and minimum working thresholds of the strong wind speed are set in advance inside the PLC controller 12. The PLC controller 12 will identify and compare based on the received wind speed data. When the detected wind speed exceeds the set maximum working threshold, it indicates that the strong wind force is relatively large, and the needle body of the lightning rod body 3 is affected by the strong wind and is prone to shaking and instability. At this time, the PLC controller 12 will activate the electric push rod 402 to push the moving plate 403 and the U-shaped plate 405 to move to one side, and drive the two protective plates 406 to move away from the top of the sealing ring 410. At this time, the two movable holes 409 lose the shielding protection. Then the PLC controller 12 will activate the forward and reverse motor 803. The rotation of the output end of the forward and reverse motor 803 drives one of the driving gears 806 to rotate clockwise, and drives the other meshing driving gear 806 to rotate counterclockwise. Further drive the two rotating rods 802 and the corresponding two driven gears 811 to rotate in the opposite direction. Drive the insulating rod 805 near the rear to rotate clockwise through the chain 809, and the insulating rod 805 near the front to rotate counterclockwise. Further drive the two insulating reinforcement rods 807 to rotate out from the corresponding movable holes 409 respectively, and rotate towards the needle body of the lightning rod body 3, so that the two support clips 810 rotate to the needle body of the lightning rod body 3. When the forward and reverse motor 803 automatically shuts down, the two support clips 810 are both clamped on the outer surface of the needle body of the lightning rod body 3, as shown in. Figure 5As shown, at this time, both the protective strip 812 and the conductive sheet 908 are in contact with the lightning rod body 3. The protective strip 812 is made of rubber material. Through the protective strip 812, wear between the support clip 810 and the lightning rod body 3 is avoided. Through the support assembly 8, the two support clips 810 are clamped at the needle body of the lightning rod body 3 to form a circular fixing ring. With the cooperation of the insulating reinforcement rod 807 and the insulating rod 805, the needle body part of the lightning rod body 3 is supported assistantly, increasing the support force, forming a stable structure, improving the overall stability, better resisting the action of wind force, reducing the shaking amplitude, avoiding loosening at the connection between the lightning rod body 3 and the dry-type transformer, affecting the lightning protection effect of the transformer, and solving the problem that when encountering strong wind weather during the use of the lightning protection dry-type transformer, the lightning rod is prone to shaking. After a long time, it is easy to cause loosening and fracture at the connection between the lightning rod and the dry-type transformer, and even damage the top structure of the transformer, and it will also affect the lightning protection effect of the dry-type transformer. When the external wind force is small, the forward and reverse motor 803 starts again. At this time, the output end of the forward and reverse motor 803 rotates in the reverse direction, so that the insulating rod 805 rotates in the direction opposite to the previous rotation direction, so that the two insulating reinforcement rods 807 drive the support clip 810 to leave the needle body of the lightning rod body 3 and return to the lightning protection box 2 through the movable hole 409. At this time, the conductive sheet 908 is not in contact with the lightning rod body 3. When there is no lightning weather, it is possible to avoid the conductive sheet 908 from misguiding current due to other factors in non-lightning weather, reducing unnecessary safety risks.

[0039] Embodiment 2: As Figures 3 - 5 and Figures 7 - 12As shown, a support component 8 and a guiding component 9 are arranged inside the lightning protection box 2. The support component 8 is used to assist in supporting the lightning rod body 3 during strong winds. The guiding component 9 is used to assist in guiding the lightning current safely to the ground. The protection component 4 is used to protect the support component 8 and the guiding component 9. The guiding component 9 includes a U-shaped insulating tube 901. A U-shaped conductive rod 904 is fixedly installed inside the U-shaped insulating tube 901. Conductive columns 906 are fixedly installed on the outer surface of the U-shaped conductive rod 904 near both ends. A downlead 905 is fixedly connected to the outer surface of the U-shaped conductive rod 904. Protective sleeves 903 are fixedly installed on the outer surface of the U-shaped insulating tube 901 near both ends. Lightning attracting rods 907 are fixedly installed inside both insulating reinforcement rods 807. Conductive sheets 908 are fixedly connected to the inner walls of both support clips 810. One end of each of the two lightning attracting rods 907 respectively penetrates through the inside of the two support clips 810, and one end of each of the two lightning attracting rods 907 is fixedly connected to the outer surface of each of the two conductive sheets 908. The other ends of both lightning attracting rods 907 are fixedly installed with power conducting rods 909. Tilted conductive rods 910 are fixedly installed on the outer surface of both power conducting rods 909. One end of each of the two tilted conductive rods 910 respectively penetrates through the outer surface of the two insulating rods 805. Insulating sleeves 813 are fixedly sleeved on the outer surface of both tilted conductive rods 910. One side outer surface of each of the two insulating sleeves 813 is fixedly installed on the outer surface of each of the two insulating rods 805. One end of each of the two conductive columns 906 respectively penetrates through the outer surface of the U-shaped insulating tube 901, and the outer surfaces of the two conductive columns 906 are respectively fixedly installed on the inner walls of the two protective sleeves 903. One end of the downlead 905 fixedly penetrates through the U-shaped insulating tube 901 and the lightning protection box 2 to the outer surface. A plurality of connecting rods 902 are fixedly installed on the outer surface of the U-shaped insulating tube 901 near the bottom, and the bottom ends of the plurality of connecting rods 902 are all fixedly installed on the bottom surface inside the lightning protection box 2. Embedded grooves 814 are formed inside both insulating rods 805, and both ends of the two power conducting rods 909 are respectively fixedly installed on both sides inside the two embedded grooves 814.

[0040] In this embodiment, during use, when there is lightning outside, the PLC controller 12 is remotely controlled through an external console to activate the protection component 4 and the support component 8. The working process has been introduced in detail in Embodiment 1. Through the support component 8, the two conductive sheets 908 are brought into contact with the outer surface of the lightning rod body 3. At the same time, when the insulating rod 805 rotates, it drives the insulating sleeve 813 and the inclined conductive rod 910 to rotate together, so that one end of the two inclined conductive rods 910 rotates into the corresponding conductive columns 906. At this time, the inclined conductive rod 910 is in contact with the conductive column 906. When the lightning rod body 3 safely guides the lightning current underground through the lead wire and the grounding device, part of the current on the lightning rod body 3 will flow to the two conductive sheets 908, and then through the corresponding lightning attracting rods 907 and current conducting rods 909, the current is led to the inclined conductive rod 910, and through the conductive column 906, the current is led to the U-shaped conductive rod 904. The down conductor 905 is connected to the grounding device, and the U-shaped conductive rod 904 safely leads the current to the ground through the down conductor 905 and the grounding device. The support component 8 and the guiding component 9 cooperate to share part of the lightning current, thereby reducing the burden on the lightning rod body 3 and guiding the lightning current to the ground more quickly. At the same time, the presence of the guiding component 9 increases the current flow path, which is beneficial to the rapid discharge of the lightning current, thereby improving the lightning protection effect of the transformer.

[0041] Embodiment 3: As Figures 3 - 8 shown, a support component 8 and a guiding component 9 are arranged inside the lightning protection box 2. The support component 8 is used to assist in supporting the lightning rod body 3 during strong winds, the guiding component 9 is used to assist in guiding the lightning current to the ground safely, and the protection component 4 is used to protect the support component 8 and the guiding component 9. The protection component 4 includes a mounting plate 401. An electric push rod 402 is fixedly installed inside the mounting plate 401. One end of the electric push rod 402 is fixedly installed with a moving plate 403. Two support rods 404 are movably embedded inside the moving plate 403. One end of each of the two support rods 404 is fixedly installed on the outer surface of the lightning protection box 2. A U-shaped plate 405 is fixedly installed on the top of the moving plate 403. Two protection plates 406 are fixedly installed on the outer surface of one side of the U-shaped plate 405. Two sliding columns 408 are fixedly installed at the bottom of the two protection plates 406. Two moving holes 409 are opened at the top of the lightning protection box 2. Sealing rings 410 are fixedly connected to the top of the lightning protection box 2 near the two moving holes 409. Two sliding grooves 407 are opened at the top of the lightning protection box 2 near the two moving holes 409. The bottom ends of the multiple sliding columns 408 are respectively movably embedded inside the multiple sliding grooves 407. The outer surface of the mounting plate 401 is fixedly installed on the top surface inside the lightning protection box 2. One end of the electric push rod 402 movably penetrates to the outer surface of the lightning protection box 2.

[0042] In this embodiment, during use, after the support component 8 rotates back into the lightning protection box 2, as Figure 4As shown in the figure, then start the electric push rod 402 again, pull the moving plate 403 and the U-shaped plate 405 to move towards the lightning rod body 3, and push the two protective plates 406 to move simultaneously, so that the two protective plates 406 move to the top of the two sealing rings 410 to shield and protect the two movable holes 409. Under the action of the protection component 4, the equipment in the lightning protection box 2 is protected, preventing dust and impurities from falling onto the conductive sheet 908 through the movable holes 409, resulting in the accumulation of dust and impurities on the inner wall of the conductive sheet 908 and affecting the subsequent conductive effect of the conductive sheet 908.

[0043] The effects and working principles achieved by the entire mechanism are as follows: When encountering strong wind weather, start the anemometer 5. The anemometer 5 detects the wind speed around the dry-type transformer body 10 and transmits the detected wind speed information to the PLC controller 12 in the form of an electrical signal. The maximum and minimum working thresholds of the strong wind speed are pre-set inside the PLC controller 12. The PLC controller 12 will identify and compare based on the received wind speed data. When the detected wind speed exceeds the set maximum working threshold, it indicates that the strong wind force is relatively large, and the needle body of the lightning rod body 3 is affected by the strong wind and is prone to shaking and instability. At this time, the PLC controller 12 will start the electric push rod 402, push the moving plate 403 and the U-shaped plate 405 to move to one side, and drive the two protective plates 406 to move away from the top of the sealing ring 410. At this time, the two movable holes 409 lose their shielding protection. Then the PLC controller 12 will start the forward and reverse motor 803. The rotation of the output end of the forward and reverse motor 803 drives one of the driving gears 806 to rotate clockwise, and drives the other meshed driving gear 806 to rotate counterclockwise, further driving the two rotating rods 802 and the corresponding two driven gears 811 to rotate in the opposite direction. The chain 809 drives the insulating rod 805 near the rear side to rotate clockwise, and the insulating rod 805 near the front side to rotate counterclockwise, further driving the two insulating reinforcement rods 807 to rotate out of the corresponding movable holes 409 respectively and rotate towards the needle body of the lightning rod body 3, so that the two support clips 810 rotate to the needle body of the lightning rod body 3. When the forward and reverse motor 803 automatically shuts down, the two support clips 810 are both clamped on the outer surface of the needle body of the lightning rod body 3, as Figure 5As shown in the figure, at this time, both the protective strip 812 and the conductive sheet 908 are in contact with the lightning rod body 3. Through the support assembly 8, the two support clips 810 are clamped at the needle body of the lightning rod body 3 to form a circular fixing ring. With the cooperation of the insulating reinforcement rod 807 and the insulating rod 805, the needle body part of the lightning rod body 3 is supported assistantly, increasing the supporting force, forming a stable structure, improving the overall stability, better resisting the action of wind force, and reducing the sway amplitude. When the external wind force is small, the forward and reverse motor 803 starts again. At this time, the output end of the forward and reverse motor 803 will rotate in the reverse direction, causing the insulating rod 805 to rotate in the direction opposite to the previous rotation direction, so that the two insulating reinforcement rods 807 drive the support clip 810 to leave the needle body of the lightning rod body 3 and return to the inside of the lightning protection box 2 through the movable hole 409. At this time, the conductive sheet 908 is not in contact with the lightning rod body 3. When there is lightning, the lightning rod body 3 attracts the lightning to itself and safely introduces the lightning current into the ground through the lead wire and the grounding device, thereby protecting the transformer from damage by lightning overvoltage. Through the support assembly 8, the two conductive sheets 908 are in contact with the outer surface of the lightning rod body 3. At the same time, when the insulating rod 805 rotates, it drives the insulating sleeve 813 and the inclined conductive rod 910 to rotate together, so that one end of the two inclined conductive rods 910 rotates into the corresponding conductive column 906. At this time, the inclined conductive rod 910 is in contact with the conductive column 906. When the lightning rod body 3 safely guides the lightning current underground through the lead wire and the grounding device, part of the current on the lightning rod body 3 will flow to the two conductive sheets 908, and then through the corresponding lightning attracting rods 907 and current conducting rods 909, the current is led to the inclined conductive rod 910, and through the conductive column 906, the current is led to the U-shaped conductive rod 904. The downlead 905 is connected to the grounding device, and the U-shaped conductive rod 904 safely leads the current to the ground through the downlead 905 and the grounding device. The support assembly 8 and the guiding assembly 9 cooperate to share part of the lightning current, thereby reducing the burden on the lightning rod body 3 and guiding the lightning current to the ground more quickly, improving the lightning protection effect of the transformer. After the support assembly 8 returns to the lightning protection box 2, then the electric push rod 402 is started again, pulling the moving plate 403 and the U-shaped plate 405 to move towards the lightning rod body 3 and pushing the two protective plates 406 to move simultaneously, so that the two protective plates 406 move to the top of the two sealing rings 410 to shield and protect the two movable holes 409. Under the action of the protection assembly 4, the equipment in the lightning protection box 2 is protected, preventing dust and impurities from falling on the conductive sheet 908 through the movable hole 409 and affecting the subsequent conductive effect of the conductive sheet 908.

[0044] Among them, the lightning rod body 3, the electric push rod 402, the anemometer 5, the fan 7, the forward and reverse motor 803, the dry-type transformer body 10 and the PLC controller 12 are all prior arts, and their components and operating principles are all publicly known technologies, and no further explanation will be given here.

[0045] 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 perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A lightning protection dry-type transformer, comprising a box body (1) and a protection component (4), wherein a lightning protection box (2) is fixedly installed on the top of the box body (1), and a lightning rod body (3) is installed at the center of the top of the box body (1) through bolts, and the characteristics are as follows: Inside the lightning protection box (2), a support component (8) and a guiding component (9) are provided. The support component (8) is used to assist in supporting the lightning rod body (3) during strong winds, the guiding component (9) is used to assist in guiding the lightning current safely to the ground, and the protection component (4) is used to protect the support component (8) and the guiding component (9). The support component (8) includes two fixed seats (801). Inside each of the two fixed seats (801), a rotating rod (802) is movably embedded. At one end of each of the two rotating rods (802), a driving gear (806) is fixedly installed. At the other end of each of the two rotating rods (802), a driven gear (811) is fixedly installed. A positive and negative motor (803) is fixedly installed on the bottom surface inside the lightning protection box (2). A chain (809) is meshed with the outer surface of each of the two driven gears (811). A rotating gear (808) is meshed with the inner wall of each of the two chains (809). An insulating rod (805) is fixedly installed on the outer surface of one side of each of the two rotating gears (808). An insulating reinforcing rod (807) is fixedly installed on the outer surface of each of the two insulating rods (805). A support clip (810) is fixedly installed at one end of each of the two insulating reinforcing rods (807). Protective strips (812) are fixedly connected to the inner walls of the two support clips (810) near both sides. The guiding component (9) includes a U-shaped insulating tube (901). A U-shaped conductive rod (904) is fixedly installed inside the U-shaped insulating tube (901). Conductive columns (906) are fixedly installed near both ends of the outer surface of the U-shaped conductive rod (904). A down conductor (905) is fixedly connected to the outer surface of the U-shaped conductive rod (904). Protective sleeves (903) are fixedly installed near both ends of the outer surface of the U-shaped insulating tube (901). Lightning attracting rods (907) are fixedly installed inside each of the two insulating reinforcing rods (807). Conductive sheets (908) are fixedly connected to the inner walls of the two support clips (810). One end of each of the two lightning attracting rods (907) respectively penetrates fixedly into the interiors of the two support clips (810). One end of each of the two lightning attracting rods (907) is fixedly connected to the outer surface of each of the two conductive sheets (908). Electric lead rods (909) are fixedly installed at the other end of each of the two lightning attracting rods (907). Inclined conductive rods (910) are fixedly installed on the outer surfaces of each of the two electric lead rods (909). One end of each of the two inclined conductive rods (910) respectively penetrates fixedly into the outer surfaces of the two insulating rods (805). Insulating sleeves (813) are fixedly sleeved on the outer surfaces of each of the two inclined conductive rods (910). The outer surfaces of one side of each of the two insulating sleeves (813) are respectively fixedly installed on the outer surfaces of the two insulating rods (805). A wind speed meter (5) is provided near one side of the top of the box body (1). A PLC controller (12) is fixedly installed on the bottom surface inside the lightning protection box (2) near the rear wall. A bottom plate (6) is fixedly installed on the bottom surface inside the box body (1). A dry-type transformer body (10) is arranged on the top of the bottom plate (6). A fan (7) is arranged at the bottom of the dry-type transformer body (10). An installation hole (11) is opened at the center of the top of the lightning protection box (2). The lightning rod body (3) is located inside the installation hole (11). A drainage groove (13) is opened at the bottom of the lightning protection box (2). The bottoms of the two fixing seats (801) are fixedly installed on the bottom surface inside the lightning protection box (2).

2. The lightning protection dry-type transformer according to claim 1, wherein: The output end of the forward and reverse motor (803) is fixedly connected to the outer surface of one side of one of the driving gears (806). The outer surfaces of the two driving gears (806) are meshed. The outer surfaces of the two insulating rods (805) are movably sleeved with two fixing plates (804). The bottoms of the two fixing plates (804) are fixedly installed on the bottom surface inside the lightning protection box (2).

3. The lightning protection dry-type transformer according to claim 2, characterized in that: One ends of the two conductive columns (906) are fixedly penetrated through the outer surface of the U-shaped insulating tube (901). The outer surfaces of the two conductive columns (906) are respectively fixedly installed on the inner walls of the two protective sleeves (903). One end of the down-lead (905) is fixedly penetrated through the U-shaped insulating tube (901) and the lightning protection box (2) to the outer surface. A plurality of connecting rods (902) are fixedly installed on the outer surface of the U-shaped insulating tube (901) near the bottom.

4. The lightning protection dry-type transformer according to claim 3, wherein: The bottoms of the plurality of connecting rods (902) are fixedly installed on the bottom surface inside the lightning protection box (2). Embedded grooves (814) are opened inside the two insulating rods (805). The two ends of the two conductive rods (909) are respectively fixedly installed on both sides inside the two embedded grooves (814).

5. The lightning protection dry-type transformer according to claim 4, wherein: The protection assembly (4) includes a mounting plate (401). An electric push rod (402) is fixedly installed inside the mounting plate (401). One end of the electric push rod (402) is fixedly installed with a moving plate (403). Two support rods (404) are movably embedded inside the moving plate (403). One ends of the two support rods (404) are fixedly installed on the outer surface of the lightning protection box (2). A U-shaped plate (405) is fixedly installed on the top of the moving plate (403). Two protection plates (406) are fixedly installed on the outer surface of one side of the U-shaped plate (405). Two sliding columns (408) are fixedly installed at the bottoms of the two protection plates (406).

6. The lightning protection dry-type transformer according to claim 5, characterized in that: Two movable holes (409) are formed in the top of the lightning protection box (2). Sealing rings (410) are fixedly connected to the top of the lightning protection box (2) near the two movable holes (409). Two sliding grooves (407) are formed in the top of the lightning protection box (2) near the two movable holes (409). The bottom ends of the plurality of sliding columns (408) are respectively movably embedded in the plurality of sliding grooves (407). The outer surface of the mounting plate (401) is fixedly installed on the inner top surface of the lightning protection box (2). One end of the electric push rod (402) movably penetrates through the outer surface of the lightning protection box (2).

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