A transformer with lightning protection function

Abstract

The invention relates to the technical field of transformers, and provides a transformer with a lightning protection function, comprising a transformer body, a lifting lightning rod, a lightning rod and a lightning early warning system, wherein the lifting lightning rod is transversely arranged on the upper side of a heat dissipation fin on the front side of the transformer body, and the lifting lightning rod can be horizontally rotated to a specific position with its back to the transformer body and then rotated upward to a vertical state; the lifting lightning rod is rotatably installed on a mounting rod, and a driving motor is installed on the mounting rod, and the lifting lightning rod can be placed horizontally, first rotated horizontally and then rotated vertically to an upright state through the cooperation of the motor, a transmission mechanism and a first switching component, and a down conductor winding drum is arranged on the first rotating shaft of the driving motor, and the driving motor can drive the down conductor winding drum or the transmission mechanism to operate through the second switching component; the invention effectively saves the utilization of space near the transformer, has good line safety protection, and reduces the use of electrical equipment.

Description

Technical Field

[0001] The invention belongs to the technical field of transformers, and in particular relates to a transformer with a lightning protection function. Background Art

[0002] Transformers are equipment tools that regulate AC voltage through electromagnetic induction effect. Through the use of transformers, the transmission voltage is maintained stable during long-distance AC transmission, effectively avoiding voltage instability caused by resistance consumption during AC transmission, which affects the normal supply and use of electric energy. In the existing power transmission, transformers are widely used, so that remote areas can also have good power supply applications. In order to avoid damage to power transmission lines caused by lightning strikes during power transmission, transformers need to be protected from lightning for outdoor use.

[0003] The Chinese invention patent with application publication number CN111091963A discloses an outdoor lightning protection transformer, including a transformer protection cabinet, a humidity sensor, a motor and a lightning rod body. The humidity sensor is fixedly installed on one side of the top of the transformer protection cabinet, and a reserved air cavity is opened at the bottom of the transformer protection cabinet. The rod end of the screw rod is fixedly connected to the motor, and a windshield push plate is movably installed on the outer wall of the screw rod. An insulating ceramic cylinder is fixedly installed on the side outer wall of the transformer protection cabinet. The lightning rod body is located in the inner cavity, and a rubber ring is movably installed at the top outlet position of the insulating ceramic cylinder. The insulating connection A positioning rubber block is fixed to the inner wall of one end of the rod outside the sleeve; the outdoor lightning protection transformer can use and store the lightning protection structure by itself, reduce the wind bending damage caused by external storage, and greatly reduce the external force of wind and rain impact during use, so as to achieve the use and protection of the lightning protection structure; although the technical solution provided by the invention can use and store the lightning protection structure by itself, it is necessary to set a support, sleeve, insulating connecting rod and other structures on the upper side of the transformer protection cabinet to fix the lightning rod body, which will affect the connection and wiring of the high-voltage line above the transformer, and have a certain impact on the high-voltage line when in use; Another example is the Chinese utility model patent with the authorization announcement number CN215731277U, which discloses a lightning protection power distribution transformer. The utility model relates to the technical field of transformer equipment, specifically a lightning protection power distribution transformer, including a lightning protection frame, a first receiving slot and a second receiving slot, wherein the first receiving slot is internally movably connected to a first lightning rod, and the second receiving slot is internally movably connected to a second lightning rod, a sound sensor is arranged on one side of the transformer body surface, and a control panel is arranged on one side of the sound sensor; the utility model is provided with a lightning protection frame, a first lightning rod, and a second lightning rod. The utility model comprises a first lightning rod, a sound sensor, a control panel, a second electric push rod and a third electric push rod, and performs a stable adjustment operation on the first lightning rod and the second lightning rod. In actual use, when there is thunderstorm outside, the sound sensor first detects the external thunder, and quickly transmits the electrical signal to the control panel, and the second electric push rod and the third electric push rod at the bottom of the first lightning rod and the second lightning rod are started through the control panel; although the utility model can also realize the storage of the lightning rod, the utility model sets the lightning rack and the lightning rod above the transformer, which will cause serious interference to the connection of the high-voltage line on the upper side of the transformer; Another example is a Chinese utility model patent with authorization announcement number CN219329180U, which discloses a transformer with a built-in lightning protection structure, including a transformer body, a first stepper motor is installed on the outer wall of one side of the transformer body, a side plate is fixed to the outer wall of one side of the transformer body, a rotating rod is inserted into the outer wall of one side of the side plate through a bearing, and the output shaft of the first stepper motor is connected to one end of the rotating rod; the utility model is designed with a rotatable and liftable lightning rod structure. In thunderstorm weather, the lightning rod can be erected and raised from the protection box to play a lightning protection role for the transformer body. After returning to normal weather, the lightning rod can be stored again, which has a good protection effect on the lightning rod and effectively extends the service life of the lightning rod; although the technical solution provided by the utility model stores the lightning rod in the protection box, and the protection box is arranged on one side of the transformer body, the lightning rod in the technical solution provided by the utility model is also directly rotated from a horizontal lying state to an upright state, and will also touch the high-voltage line above the transformer during the rotation process. Summary of the invention

[0004] In view of the shortcomings of the prior art, the present invention provides a transformer with lightning protection function, which solves the problems raised in the above-mentioned background technology, effectively saves the utilization of space near the transformer, has good line safety protection, reduces the use of electrical equipment, and improves the lightning warning and lightning protection effect.

[0005] The technical solution of the present invention is as follows: A transformer with lightning protection function, comprising a transformer body, a lifting lightning rod, a lightning rod and a lightning early warning system; The lifting lightning rod is transversely arranged on the upper side of the heat dissipation fins on the front side of the transformer body. When lightning protection is required, the lifting lightning rod can be rotated horizontally to a specific position with its back to the transformer body and then rotated upward to a vertical state; A mounting rod is provided on the left side of the front heat dissipation fin of the transformer body, the lifting lightning rod is rotatably mounted on the top of the mounting rod, a driving motor is mounted on the mounting rod, the driving motor drives the lifting lightning rod to rotate horizontally or vertically through a transmission mechanism arranged in the mounting rod, and the transmission mechanism switches and drives the lifting lightning rod to rotate horizontally or vertically through a matching first switching component; The first rotating shaft of the driving motor extending into the mounting rod is provided with a down conductor winding drum, and the first rotating shaft is provided with a second switching component, and the second switching component can drive the down conductor winding drum or the transmission mechanism to run together with the first rotating shaft; The lightning warning system includes an atmospheric electric field meter and a control box. The control box is connected to the drive motor, the first switching component and the second switching component through a control line. The control box is connected to a host computer through a wireless network. The host computer can send lightning protection instructions to the control box of the lightning warning system according to weather forecast information.

[0006] Furthermore, an outer base is fixed to the top of the mounting rod, the inner side surface of the outer base is rotatably connected to the inner base, a mounting vertical plate is provided on the top of the inner base, the lifting lightning rod is rotatably mounted on the mounting vertical plate through a second rotating shaft, and a rotating ring with an L-shaped cross-section is fixed to the bottom of the inner side wall of the inner base, the outer edge of the rotating ring is inserted into the outer base, and a ball is provided on the lower side of the rotating ring.

[0007] Furthermore, a shaft sleeve sleeved on the second rotating shaft is fixed to the bottom of the lifting lightning arrester, and a first gear ring is fixed to the outer periphery of the shaft sleeve.

[0008] Further, the transmission mechanism includes a first gear rotatably assembled on the inner wall of the mounting rod at a position corresponding to the first rotating shaft, a first bevel gear meshing with the first gear, a second bevel gear meshing with the first bevel gear, a second gear and a third gear connected to the second bevel gear through a transmission shaft, a third bevel gear meshing with the third gear, and a fourth bevel gear meshing with the third bevel gear, the second gear meshes with the inner wall of the inner base, the fourth bevel gear meshes with the first gear ring, and the first switching assembly is assembled on the transmission shaft between the second gear and the third gear to drive the second gear or the third gear to rotate with the transmission shaft.

[0009] Furthermore, the first switching component includes an electromagnet with variable polarity, a permanent magnet, a push rod and a first clamping plate. The transmission shaft is a hollow structure. The electromagnet and the push rod are both arranged in the inner cavity of the transmission shaft. The permanent magnet is arranged at the end of the transmission shaft corresponding to the electromagnet, and the first clamping plate is fixed on the push rod.

[0010] Furthermore, the second gear and the third gear are each provided with a first card slot on opposite sides, the first card plate can be engaged in the first card slot, a strip hole is provided on the transmission shaft, the first card plate extends out of the transmission shaft from the strip hole and can slide along the strip hole.

[0011] Furthermore, the second switching assembly includes an electromagnetic push rod installed in the first rotating shaft, and the output end of the electromagnetic push rod is provided with a second clamping plate that can be clamped into the down conductor reel or the first gear.

[0012] Furthermore, the down conductor reel comprises a sleeve sleeved on the first rotating shaft and a baffle plate arranged on the sleeve, and a second clamping groove for a second clamping plate to be clamped into is formed at the end of the sleeve.

[0013] Furthermore, the first gear is rotatably connected in the mounting rod via a third rotating shaft, and one end of the third rotating shaft facing the down conductor reel is provided with a third card slot for the second card plate to be inserted into, and a socket for the first rotating shaft to be inserted into.

[0014] Furthermore, a locking assembly is provided on one of the mounting vertical plates, and the locking assembly includes a dual-output motor, a worm gear installed on the two output ends of the dual-output motor, and a worm respectively cooperating with the two worm gears, and the worm can penetrate the mounting vertical plate and the first gear ring at the same time.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention arranges the lifting lightning rod horizontally on the upper side of the heat dissipation fins of the transformer body. When lightning protection is required, the lifting lightning rod can be erected after rotating in the horizontal and vertical directions to perform lightning protection. When lightning protection is not required, the lifting lightning rod is in a horizontally laid-down state and will only be erected when lightning protection is required, thereby avoiding occupying space; and in the process from lying horizontally to standing upright, it is first rotated horizontally to a certain extent and then erected, thereby avoiding affecting the overhead line above the transformer when directly standing upright, thereby improving the safety protection of the overhead line above the transformer; 2. The present invention realizes the evolution of the lifting lightning rod from horizontal static to horizontal rotation and then to upright through the cooperation of the driving motor, the transmission mechanism and the first switching assembly, without the need for additional driving motors, thereby reducing costs to a certain extent; 3. The first rotating shaft of the driving motor provided by the present invention is provided with a down conductor winding drum and a second switching component, and the down conductor winding drum winds up the down conductor connected to the lightning rod. When the lifting lightning rod is raised, the down conductor winding drum releases the down conductor under the drive of the driving motor, and when the lifting lightning rod is lowered, the down conductor is wound up by the drive of the driving motor; the setting of the second switching component can realize the drive switching between the down conductor winding drum and the transmission mechanism when the driving motor is running, so that the same driving motor can drive the down conductor winding drum or the transmission mechanism to work, and then combined with the cooperation of the first switching component and the transmission mechanism, the driving motor drives the lifting lightning rod to move in the horizontal and vertical directions, and then the same driving motor realizes the horizontal rotation and vertical rotation of the lifting lightning rod and the winding and releasing of the down conductor connected to the lightning rod, so that one motor has multiple uses, effectively reduces the practical use of the motor, and reduces the use of electrical equipment; 4. In addition to the atmospheric electric field meter and the control box, the cold spot warning system provided by the present invention can also receive the lightning protection instructions sent by the host computer according to the weather forecast, so as to no longer rely solely on the atmospheric electric field meter for lightning warning detection. Similarly, if there is a sudden thunderstorm, lightning warning can be achieved by relying solely on the detection of the atmospheric electric field meter, thereby achieving effective lightning warning; In short, the present invention effectively saves the utilization of space near the transformer, has good line safety protection, reduces the use of electrical equipment, and has good lightning warning and lightning protection effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a front view of the present invention; Figure 2 The rear view of the transformer body and the lifting lightning rod; Figure 3 for Figure 1 The left view of the transformer body and the lifting lightning rod; Figure 4 for Figure 3 AA section diagram of the middle lifting lightning rod; Figure 5 is a schematic diagram of the structure of a first switching component; Figure 6 is a schematic diagram of the structure of the second switching component; Figure 7 for Figure 1 Schematic diagram of the BB cross section of the medium-lift lightning rod.

[0017] In the figure: 1, transformer body, 2, lifting lightning rod, 3, lightning rod, 4, mounting rod, 5, driving motor, 6, first rotating shaft, 7, down conductor reel, 701, sleeve, 702, baffle, 703, second slot, 8, atmospheric electric field instrument, 9, control box, 10, outer base, 11, inner base, 12, mounting vertical plate, 13, second rotating shaft, 14, rotating ring, 15, ball, 16, bushing, 17, first gear ring, 18, first gear, 19, first Bevel gear, 20, second bevel gear, 21, second gear, 22, third gear, 23, third bevel gear, 24, fourth bevel gear, 25, transmission shaft, 26, electromagnet, 27, permanent magnet, 28, push rod, 29, first clamping plate, 30, first clamping slot, 31, bar hole, 32, electromagnetic push rod, 33, second clamping plate, 34, third rotating shaft, 35, third clamping slot, 36, fourth rotating shaft, 37, worm wheel, 38, worm, 39, dual output motor. Implementation

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0019] like Figure 1-4 As shown, the present invention provides a transformer with lightning protection function, including a transformer body 1, a lifting lightning rod 2, a lightning rod 3 and a lightning early warning system; The lifting lightning rod 2 is horizontally arranged on the upper side of the heat dissipation fins on the front side of the transformer body 1. When lightning protection is required, the lifting lightning rod 2 can be horizontally rotated to a specific position with its back to the transformer body 1 and then rotated upward to a vertical state. The present invention sets the lifting lightning rod 2 horizontally on the upper side of the heat dissipation fins on the front side of the transformer body 1. Only when lightning protection is required, the lifting lightning rod 2 is rotated to a vertical state after horizontal and vertical rotation. When the lifting lightning rod 2 is lying horizontally, it is located on the upper side of the heat dissipation fins on the front side of the transformer body 1, so that the space around the transformer body 1 is not occupied. When the lifting lightning rod 2 is turned from the lying state to the vertical state, it will not touch the assumed high-voltage line above the transformer body 1. A mounting rod 4 is provided on the left side of the front heat dissipation fin of the transformer body 1, that is, the mounting rod 4 is also located on the front side of the heat dissipation fin on the left side of the transformer body 1, and the cross section of the mounting rod 4 is a rectangular frame structure. The lifting lightning rod 2 is rotatably mounted on the top of the mounting rod 4, and a driving motor 5 is installed on the mounting rod 4. The driving motor 5 drives the lifting lightning rod 2 to rotate horizontally or vertically through a transmission mechanism arranged in the mounting rod 4, and the transmission mechanism switches and drives the lifting lightning rod 2 to rotate horizontally or vertically through a matching first switching component; the present invention sets the mounting rod 4 for installing the lifting lightning rod 2 at the corner of the transformer body 1, making full use of the vacant space corresponding to the heat dissipation fins on two adjacent sides of the transformer body 1, and because the high-voltage line above the transformer body 1 is usually erected directly above the transformer body 1, when the lifting lightning rod 2 is in an upright state, it will not affect the high-voltage line; The driving motor 5 extends into the first rotating shaft 6 in the mounting rod 4 and is provided with a down conductor winding drum 7. The first rotating shaft 6 is provided with a second switching component, and the second switching component can drive the down conductor winding drum 7 or the transmission mechanism to run together with the first rotating shaft 6; therefore, through the cooperation of the second switching component with the down conductor winding drum 7 and the transmission mechanism and through the cooperation of the first switching component with the transmission mechanism, the operation of the down conductor winding drum 7 and the horizontal rotation and vertical rotation of the lifting lightning rod 2 can be achieved by the same driving motor 5; The lightning warning system includes an atmospheric electric field meter 8 and a control box 9. The control box 9 is connected to the drive motor 5, the first switching component and the second switching component through a control line. The control box 9 is connected to the host computer through a wireless network. The host computer can send a lightning protection instruction to the control box 9 of the lightning warning system according to the weather forecast information; the host computer can collect weather forecast information issued by the meteorological department on a daily basis. If there is rainy weather the next day, the host computer sends a lightning protection instruction to the control box 9 of the lightning warning system. After receiving the lightning protection instruction, the control box 9 starts the drive motor 5 and rotates the lifting lightning rod 2 to an upright state by controlling the first switching component and the second switching component. When the lifting lightning rod 2 is upright, the control box 9 can also control the lifting lightning rod 2 to lift and lower so as to raise the lightning rod 3 to a position higher than the high-voltage line.

[0020] like Figure 4As shown, an outer base 10 is fixed to the top of the mounting rod 4, and the inner side surface of the outer base 10 is rotatably connected to the inner base 11. A mounting vertical plate 12 is provided on the top of the inner base 11. The lifting lightning rod 2 is rotatably mounted on the mounting vertical plate 12 through a second rotating shaft 13. A rotating ring 14 with an L-shaped cross section is fixed to the bottom of the inner side wall of the inner base 11. The outer edge of the rotating ring 14 is inserted into the outer base 10, and a ball 15 is provided on the lower side of the rotating ring 14; wherein the outer base 10 is mounted on the mounting rod 4 through a flange. Since the rotating ring 14 is fixed on the inner side wall of the inner base 11, the rotating ring 14 can rotate with the inner base 11. Since the outer edge of the rotating ring 14 is inserted into the outer base 10, it has a longitudinal limiting effect on the inner base 11, and the ball 15 is in rolling contact with the mounting rod 4, thereby improving the smoothness of the inner base 11 during rotation.

[0021] like Figure 7 As shown, a sleeve 16 sleeved on the second rotating shaft 13 is fixed to the bottom of the lifting lightning rod 2, and a first gear ring 17 is fixed to the outer periphery of the sleeve 16, wherein the sleeve 16 can rotate relative to the second rotating shaft 13, and the first gear ring 17 is meshed with the transmission mechanism, thereby driving the sleeve 16 to rotate by driving the first gear ring 17 to rotate, thereby driving the lifting lightning rod 2 to rotate in the vertical direction.

[0022] like Figure 4 and Figure 7As shown, the transmission mechanism includes a first gear 18 rotatably mounted on the inner side wall of the mounting rod 4 at a position corresponding to the first rotating shaft 6, a first bevel gear 19 meshing with the first gear 18, a second bevel gear 20 meshing with the first bevel gear 19, a second gear 21 and a third gear 22 connected to the second bevel gear 20 through a transmission shaft 25, a third bevel gear 23 meshing with the third gear 22, and a fourth bevel gear 24 meshing with the third bevel gear 23, the second gear 21 meshes with the inner side wall of the inner base 11, the fourth bevel gear 24 meshes with the first gear ring 17, and the first switching assembly is mounted on the transmission shaft 25 between the second gear 21 and the third gear 22 to drive the second gear 21 or the third gear 22 As the transmission shaft 25 rotates; the first bevel gear 19, the third bevel gear 23 and the fourth bevel gear 24 are all integrally formed by a cylindrical gear segment and a bevel gear segment, the cylindrical gear segment of the first bevel gear 19 is meshed with the first gear 18, the bevel gear segment is meshed with the second bevel gear 20, the cylindrical gear segment of the third bevel gear 23 is meshed with the third gear 22, the bevel gear segment is meshed with the bevel gear segment of the fourth bevel gear 24, and the cylindrical gear segment of the fourth bevel gear 24 is meshed with the first gear ring 17; the third bevel gear 23 is fixed on a fourth rotating shaft 36 in a vertical state, and a horizontal plate is provided at the upper position inside the mounting rod 4, the fourth rotating shaft 36 and the transmission shaft 25 are rotatably mounted on the horizontal plate, and the fourth bevel gear 24 is rotatably assembled on the inner side wall of the inner base 11 through the fifth rotating shaft.

[0023] like Figure 5 As shown, the first switching component includes an electromagnet 26 with variable polarity, a permanent magnet 27, a push rod 28 and a first clamping plate 29. The transmission shaft 25 is a hollow structure. The electromagnet 26 and the push rod 28 are both arranged in the inner cavity of the transmission shaft 25. The permanent magnet 27 is arranged at one end of the transmission shaft 25 corresponding to the electromagnet 26. The first clamping plate 29 is fixed on the push rod 28. The second gear 21 and the third gear 22 are both provided with a first clamping groove 30 on the opposite side. The first clamping plate 29 can be clamped on the first In the slot 30, a strip hole 31 is opened on the transmission shaft 25, and the first clamping plate 29 extends out of the transmission shaft 25 from the strip hole 31 and can slide along the strip hole 31; by changing the polarity of the electromagnet 26, the electromagnet 26 and the permanent magnet 27 have magnetic poles with the same or different polarities, and through the principle of like poles repelling each other and opposite poles attracting each other, the permanent magnet 27 drives the push rod 28 to move up and down along the transmission shaft 25, so that the first clamping plate 29 is clamped into the first slot 30 on the second gear 21 or the third gear 22.

[0024] like Figure 6As shown, the second switching assembly includes an electromagnetic push rod 32 installed in the first rotating shaft 6, and the output end of the electromagnetic push rod 32 is provided with a second clamping plate 33 that can be clamped into the down conductor winding drum 7 or the first gear 18; the down conductor winding drum 7 includes a sleeve 701 sleeved on the first rotating shaft 6 and a baffle 702 arranged on the sleeve 701, and the end of the sleeve 701 is provided with a second clamping groove 703 for the second clamping plate 33 to be clamped, one end of the down conductor is connected to the lightning rod 3, and the other part is wound on the sleeve 701 and then connected to the down conductor. The other end of the line is connected to the ground. The working principle of the winding drum is the existing technology and will not be repeated here. The first gear 18 is rotatably connected to the mounting rod 4 through the third rotating shaft 34. The third rotating shaft 34 is provided with a third card slot 35 for the second card plate 33 to be inserted into the end of the down-lead winding drum 7, and a plug hole for the first rotating shaft 6 to be inserted. The end of the first rotating shaft 6 is rotatably inserted into the plug hole, and the third card slot 35 is connected to the plug hole. In order to facilitate the second card plate 33 to move along the first rotating shaft 6, a strip-shaped notch is provided at the end of the first rotating shaft 6. In order not to affect the rotation of the down lead winding drum 7 and the first gear 18, there is a certain gap between the down lead winding drum 7 and the first gear 18; the first rotating shaft 6 is in smooth contact with the sleeve 701, thereby ensuring that the first rotating shaft 6 can rotate relative to the sleeve 701. When the electromagnetic push rod 32 is in a retracted state, the second clamping plate 33 extends out of the first rotating shaft 6 from the strip-shaped movable opening and is clamped into the second clamping groove 703 on the sleeve 701. When the electromagnetic push rod 32 is extended, the output end of the electromagnetic push rod 32 drives the second clamping plate 33 to extend into the third rotating shaft 34, and the second clamping plate 33 is clamped into the third clamping groove 35. At this time, the second clamping plate 33 is disengaged from the second clamping groove 703, thereby realizing the switching of the down lead winding drum 7 or the first gear 18 of the transmission mechanism by the movement of the second clamping plate 33 and the cooperation of the strip-shaped movable opening on the first rotating shaft 6 with the second clamping groove 703 or the third clamping groove 35.

[0025] like Figure 2 and Figure 7 As shown, a locking assembly is provided on one of the mounting vertical plates 12, and the locking assembly includes a dual-output motor 39, a worm wheel 37 installed on the two output ends of the dual-output motor 39, and a worm 38 respectively matched with the two worm wheels 37, and the worm 38 can simultaneously penetrate the mounting vertical plate 12 and the first gear ring 17; when the lifting lightning rod 2 is in a horizontal position (i.e., not in working state), most of the worm 38 is located on the left side of the mounting vertical plate 12 (such as Figure 7As shown in the figure, the right end of the worm 38 extends out of the right side surface of the left mounting vertical plate 12 and is not inserted into the first gear ring 17. When the lifting lightning rod 2 is erected, the dual-output motor 39 receives the control command of the control box 9 and drives the worm 38 to move to the right through the worm gear 37. The worm 38 passes through the first gear ring 17 and the right mounting vertical plate 12 in turn, and finally the first gear ring 17 and the two mounting vertical plates 12 are temporarily fixed by the two worms 38 to keep the lifting lightning rod 2 stably in an upright state.

[0026] The technical solution provided by the present invention is implemented as follows: The control box 9 is provided with a single-chip microcomputer and a power supply circuit. The drive motor 5, the dual-output motor 39, and the electromagnetic push rod 32 are connected to the single-chip microcomputer and can receive control instructions from the single-chip microcomputer. The single-chip microcomputer can control the on and off of the electromagnet 26 and the direction of the current to change the polarity of the electromagnet. The atmospheric electric field instrument 8 is connected to the single-chip microcomputer. The atmospheric electric field instrument 8 detects the electric field of the atmosphere and uploads it to the single-chip microcomputer. The single-chip microcomputer determines whether it is necessary to erect the lifting lightning rod according to the preset normal atmospheric electric field data; a solar panel assembly is also installed on the rod body for installing the atmospheric electric field instrument 8 and the control box 9 to convert solar energy into electrical energy storage to provide power for the electrical components in the control box and the drive motor 5, the electromagnet 26, the electromagnetic push rod 32 and the dual-output motor 39; a communication module is also provided in the control box 9 to provide a wireless network. The communication module can use a 5G module, a ZigBee module or a LoRa module; The lifting lightning rod 2 adopts the electric drive lifting mode in the prior art. In order to reduce the load when the driving motor 5 drives the lifting lightning rod 2 to rotate, the rod body of the lifting lightning rod 2 is made of glass fiber. The motor of the lifting lightning rod 2 is connected to the single-chip microcomputer in the control box 9 to receive the control signal of the single-chip microcomputer to drive the lifting lightning rod to lift; Install the vertical plate 12 on the left side (such as Figure 7 A mounting box is provided on the left side of the mounting box, and the locking assembly is installed in the mounting box to protect the locking assembly; The polarity of the permanent magnet 27 can be either the S pole or the N pole. For the convenience of description, in the specific implementation of the present application, the permanent magnet 27 is the S pole; The driving motor 5 can be a stepping motor, so as to determine whether the lifting lightning rod 2 rotates horizontally and vertically to a certain position according to the number of circles it runs. Of course, the driving motor 5 can also be other types of motors, and then the position of the lifting lightning rod 2 horizontally and vertically rotated can be determined by setting an angle sensor; Through holes are provided at positions corresponding to the two worms 38 on the two mounting vertical plates 12 , and a through hole for the worms 38 to pass through is also provided on the first gear ring 17 . The through hole on the first gear ring 17 is provided at one end facing away from the lifting lightning rod 2 .

[0027] The working process of the technical solution provided by the present invention is as follows: The working process of lightning detection solely relying on the atmospheric electric field instrument 8 is as follows: Under normal conditions, the lifting lightning rod 2 lies horizontally above the heat dissipation fins on the front side of the transformer body 1. The single-chip computer and the communication module are always in working condition. In the non-thunderstorm season, the atmospheric electric field instrument 8 is in a closed state. When entering the thunderstorm season (the thunderstorm season in my country is different according to the climate conditions in the north and south, and can be determined according to specific conditions in practice), the single-chip computer will start the atmospheric electric field instrument 8. The atmospheric electric field instrument 8 is always in working condition during the thunderstorm season, and the detected atmospheric electric field data is fed back to the single-chip computer in time. The single-chip computer compares the received electric field data with the internal preset standard electric field data. When the detected electric field data is higher than the preset standard electric field data, the single-chip computer sends an operating instruction to the drive motor 5, the electromagnet 26 and the electromagnetic push rod 32. The electromagnetic push rod 32 drives the second card plate 33 to be clamped into the third card slot 35. After the electromagnet 26 is energized, it is the N pole, and the permanent magnet 27 is The first clamping plate 29 is adsorbed and held in the first clamping groove 30 on the second gear 21, the driving motor 5 drives the first rotating shaft 6 to rotate, the first rotating shaft 6 drives the third rotating shaft 34 to rotate through the second clamping plate 33, the third rotating shaft 34 drives the first gear 18 to rotate, the first gear 18 drives the first bevel gear 19 to rotate, the first bevel gear 19 drives the second bevel gear 20 to rotate, the second bevel gear 20 drives the second gear 21 to rotate through the transmission shaft 25, the second gear 21 drives the inner base 11 to rotate, the inner base 11 drives the lifting lightning rod 2 to rotate back to the transformer body 1, when the lifting lightning rod 2 rotates horizontally by 90°, the driving motor 5 stops running, and the single chip microcomputer controls the electromagnet 26 to pass the reverse current, at this time the polarity of the electromagnet 26 becomes the S pole, the permanent magnet 27 is repelled to move upward, and the first clamping plate 29 is driven to be clamped into the first clamping groove 30 on the third gear 22; After the electromagnet 26 is connected to the reverse circuit, the single chip microcomputer starts the driving motor again, the driving motor 5 drives the first rotating shaft 6 to rotate, the first rotating shaft 6 drives the third rotating shaft 34 to rotate through the second clamping plate 33, the third rotating shaft 34 drives the first gear 18 to rotate, the first gear 18 drives the first bevel gear 19 to rotate, the first bevel gear 19 drives the second bevel gear 20 to rotate, the second gear 21 drives the third gear 22 to rotate through the transmission shaft 25, the third gear 22 drives the third bevel gear 23 to rotate, the third bevel gear 23 drives the fourth bevel gear 24 to rotate, the fourth bevel gear 24 drives the first gear ring 17 to rotate, the first gear ring 17 drives the shaft sleeve 16 to rotate, the shaft sleeve 16 drives the lifting lightning rod 2 to rotate to a vertical state, after the lifting lightning rod 2 rotates 90°, the single chip microcomputer sends a stop operation instruction to the driving motor, and then the single chip microcomputer starts the dual output motor 39, the dual output motor 39 drives the worm wheel 37 to rotate, the worm wheel 37 drives the worm 38 to move, and passes through the first gear ring 17 and another mounting vertical plate 12 in sequence; According to the installation location of the transformer body 1, when the lifting lightning rod 2 needs to be extended, the single chip microcomputer first closes the electromagnetic push rod 32, and the electromagnetic push rod 32 drives the second clamping plate 33 to be clamped into the second clamping slot 703. The single chip microcomputer controls the operation of the motor of the lifting lightning rod 2 to drive the lifting lightning rod 2 to extend. At the same time, the single chip microcomputer controls the operation of the drive motor 5. At this time, the drive motor 5 drives the down conductor winding drum 7 to rotate the defense line through the second clamping plate 33. When the lifting lightning rod 2 drives the lightning rod 3 to reach the preset height, the single chip microcomputer sends a stop command to the drive motor 5 and the motor of the lifting lightning rod 2. When the thunderstorm ends, when the single-chip microcomputer compares the electric field data detected by the atmospheric electric field instrument 8 and the preset standard electric field data, the single-chip microcomputer first controls the lifting lightning rod 2 to retract and the down conductor winding drum 7 to reel in the down conductor, and then the lifting lightning rod 2 returns to the laid-down state and then rotates horizontally to the initial horizontal lying state. In this process, the working states of the motor, drive motor 5, electromagnet 26, and dual output motor 39 of the lifting lightning rod 2 are uniformly opposite to the aforementioned working process, which will not be repeated here; The working process of the host computer based on the received weather forecast information is as follows: This situation belongs to the advance prediction of lightning warning. After the weather forecast of the day is sent, the host computer obtains the weather conditions in the area where the transformer body 1 is located. If the area is cloudy and rainy the next day, the host computer sends a lightning protection instruction to the single-chip microcomputer. The single-chip microcomputer controls the operation of the drive motor 5, the electromagnet 26, the electromagnetic push rod 32, the dual-output motor 39 and the motor of the lifting lightning rod 2. The subsequent working process is the same as the case of relying solely on the atmospheric electric field instrument 8 for lightning detection. During the working process, the lifting lightning rod 2 is driven to the specified working state and restored to the initial state, which is not repeated here. It is judged whether the lifting lightning rod 2 needs to be restored to the original position, which is also based on the detection data fed back by the atmospheric electric field instrument 8.

[0028] It should be noted that the electromagnet 26 and the electromagnetic push rod 32 are both installed in rotating parts, which require power supply. Therefore, in this application, when it is necessary to power the rotating electrical components, a slip ring power supply connection method is adopted; each control box 9 corresponding to the transformer body 1 has a positioning module. After the transformer body 1 is installed in the use position, the transformer body 1 has unique geographical location information to match the current regional location information. Each host computer can simultaneously manage the control boxes of multiple transformer bodies 1 in multiple areas, so that the host computer can issue instructions to the control box 9 of the corresponding area based on the received regional weather forecast.

[0029] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A transformer with lightning protection function, comprising a transformer body (1), a lifting lightning rod (2), a lightning rod (3) and a lightning early warning system, characterized in that: The lifting lightning rod (2) is arranged transversely on the upper side of the heat dissipation fins on the front side of the transformer body (1); when lightning protection is required, the lifting lightning rod (2) can be turned horizontally to a specific position with its back to the transformer body (1) and then turned upward to a vertical state; A mounting rod (4) is provided on the left side of the front heat dissipation fin of the transformer body (1); the lifting lightning rod (2) is rotatably mounted on the top of the mounting rod (4); a driving motor (5) is mounted on the mounting rod (4); the driving motor (5) drives the lifting lightning rod (2) to rotate horizontally or vertically via a transmission mechanism provided in the mounting rod (4); the transmission mechanism switches the driving of the lifting lightning rod (2) to rotate horizontally or vertically via a matching first switching component; The drive motor (5) extends into the first rotating shaft (6) in the mounting rod (4), and a down conductor winding drum (7) is arranged on the first rotating shaft (6). A second switching component is arranged in the first rotating shaft (6), and the second switching component can drive the down conductor winding drum (7) or the transmission mechanism to run together with the first rotating shaft (6); The lightning warning system comprises an atmospheric electric field meter (8) and a control box (9); the control box (9) is connected to the drive motor (5), the first switching component and the second switching component via a control line; the control box (9) is connected to a host computer via a wireless network; the host computer can send a lightning protection instruction to the control box (9) of the lightning warning system according to weather forecast information.

2. The transformer with lightning protection function according to claim 1, characterized in that: An outer base (10) is fixed to the top of the mounting rod (4); the inner side surface of the outer base (10) is rotatably connected to the inner base (11); a mounting vertical plate (12) is provided on the top of the inner base (11); the lifting lightning rod (2) is rotatably mounted on the mounting vertical plate (12) via a second rotating shaft (13); a rotating ring (14) having an L-shaped cross-section is fixed to the bottom of the inner side wall of the inner base (11); the outer edge of the rotating ring (14) is inserted into the outer base (10); and a ball (15) is provided on the lower side surface of the rotating ring (14).

3. The transformer with lightning protection function according to claim 2, characterized in that: A shaft sleeve (16) sleeved on the second rotating shaft (13) is fixed to the bottom of the lifting lightning arrester rod (2), and a first gear ring (17) is fixed to the outer periphery of the shaft sleeve (16).

4. The transformer with lightning protection function according to claim 1, characterized in that: The transmission mechanism comprises a first gear (18) rotatably mounted on the inner side wall of the mounting rod (4) at a position corresponding to the first rotating shaft (6), a first bevel gear (19) meshing with the first gear (18), a second bevel gear (20) meshing with the first bevel gear (19), a second gear (21) and a third gear (22) connected to the second bevel gear (20) via a transmission shaft (25), a third bevel gear (23) meshing with the third gear (22), and a fourth bevel gear (24) meshing with the third bevel gear (23), the second gear (21) meshing with the inner side wall of the inner base (11), the fourth bevel gear (24) meshing with the first gear ring (17), and the first switching assembly is mounted on the transmission shaft (25) between the second gear (21) and the third gear (22) to drive the second gear (21) or the third gear (22) to rotate along with the transmission shaft (25).

5. The transformer with lightning protection function according to claim 4, characterized in that: The first switching component comprises an electromagnet (26) with variable polarity, a permanent magnet (27), a push rod (28) and a first clamping plate (29); the transmission shaft (25) is a hollow structure; the electromagnet (26) and the push rod (28) are both arranged in the inner cavity of the transmission shaft (25); the permanent magnet (27) is arranged at one end of the transmission shaft (25) corresponding to the electromagnet (26); and the first clamping plate (29) is fixed on the push rod (28).

6. The transformer with lightning protection function according to claim 5, characterized in that: The second gear (21) and the third gear (22) are both provided with first clamping grooves (30) on opposite sides thereof, the first clamping plate (29) can be clamped in the first clamping groove (30), the transmission shaft (25) is provided with a strip-shaped hole (31), the first clamping plate (29) extends out of the transmission shaft (25) from the strip-shaped hole (31) and can slide along the strip-shaped hole (31).

7. The transformer with lightning protection function according to claim 1, characterized in that: The second switching assembly comprises an electromagnetic push rod (32) installed in the first rotating shaft (6), and the output end of the electromagnetic push rod (32) is provided with a second clamping plate (33) capable of being clamped into the down conductor winding drum (7) or the first gear (18).

8. The transformer with lightning protection function according to claim 7, characterized in that: The down conductor reel (7) comprises a sleeve (701) sleeved on the first rotating shaft (6) and a baffle (702) arranged on the sleeve (701); a second clamping groove (703) for clamping a second clamping plate (33) is provided at an end of the sleeve (701).

9. The transformer with lightning protection function according to claim 7, characterized in that: The first gear (18) is rotatably connected to the mounting rod (4) via a third rotating shaft (34); one end of the third rotating shaft (34) facing the down conductor winding drum (7) is provided with a third clamping groove (35) for the second clamping plate (33) to be clamped in, and a plug hole for the first rotating shaft (6) to be inserted.

10. The transformer with lightning protection function according to claim 3, characterized in that: A locking assembly is provided on one of the mounting vertical plates (12), the locking assembly comprising a dual-output motor (39), a worm gear (37) mounted on two output ends of the dual-output motor (39), and a worm (38) respectively cooperating with the two worm gears (37), the worm (38) being capable of simultaneously penetrating the mounting vertical plate (12) and the first gear ring (17).

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