Electronic voltage transformer

Abstract

The invention relates to the technical field of voltage transformers, in particular to an electronic voltage transformer which comprises a supporting base, a capacitive voltage divider and an electronic assembly, the electronic assembly is fixedly connected to the upper portion of the supporting base, the capacitive voltage divider is fixedly connected to the electronic assembly, a wiring terminal is fixedly connected to the capacitive voltage divider, a first mounting base is arranged on the supporting base, and a second mounting base is arranged on the supporting base. The first mounting base is fixedly connected with the electronic component, a guide rail is arranged in the first mounting base, one end of the guide rail is hinged to the frame leg, the other end of the guide rail is fixedly connected with the first mounting base, and a sliding block is connected to the guide rail in a sliding mode. The adjusting assembly adjusts the inclination angle of the capacitive voltage divider by controlling the length of the frame legs, and a reinforcing assembly is arranged in the first mounting base and is driven by a motor to reinforce the frame legs.

Description

Technical Field

[0001] The present invention relates to the technical field of voltage transformers, and particularly to an electronic voltage transformer. Background Technique

[0002] An electronic voltage transformer is a power distribution device used to transmit a quantity proportional to the measured voltage for use by measuring instruments, meters, and relay protection or control devices. An electronic voltage transformer consists of one or more voltage sensors connected to a transmission system and a secondary converter. This type of transformer uses electronic technology to achieve accurate voltage measurement and convert the measurement results into electrical signals for transmission and processing.

[0003] In a power system, as a key device for measuring voltage, the levelness and perpendicularity of an electronic voltage transformer during installation are crucial. The electronic voltage transformer needs to be installed in a vertical or nearly vertical direction to ensure accurate measurement. If the transformer is not installed horizontally, it will cause a magnetic flux deviation, which will lead to a difference between the measured values of current and voltage and the actual values, that is, distortion. The distortion of the measured values will not only affect the normal operation of the power system but also may reduce the stability of the power grid, posing a potential hazard to the entire power system. However, factors such as vibrations of other equipment in the power grid, ground vibrations, and operation shocks transfer vibrations to the transformer directly or indirectly, causing it to vibrate. During long-term use, the connections of the electronic voltage transformer are prone to loosening, which may then lead to the tilting of the electronic voltage transformer.

[0004] In view of the above problems, some solutions are provided in the prior art. For example, patent application number: CN202321022241.7 provides an electronic voltage transformer. A fixed bottom plate is fixedly connected to the bottom of the base housing. A rotary knob is movably connected to the middle position on one side of the surface of the fixed bottom plate. Slide blocks are movably connected to both sides at the bottom of the fixed bottom plate. A housing is fixedly connected to the center position at the top of the base housing. A base cavity is provided in the middle of the base housing, and a housing cavity is provided in the middle of the housing. One end of the slide block located inside the fixed bottom plate is movably sleeved with a left - right threaded rod. Rectangular sliding grooves are provided at both sides at the bottom of the fixed bottom plate at the positions where the slide blocks are movably connected. The left - right threaded rod is movably connected in the rectangular sliding grooves. A bevel gear is fixedly connected to the middle position of the surface of the left - right threaded rod. By providing the slide blocks, when performing fixed installation, it is beneficial to rotate the rotary knob to drive the second gear set and the first gear set to drive the threaded rod to rotate through the meshing transmission of the gears, so that the slide blocks approach each other to install and fix the fixed bottom plate. This solution facilitates the installation and maintenance of the electronic voltage transformer and facilitates the staff to adjust the tilt angle of the electronic voltage transformer. However, this solution requires the staff to be on - site for adjustment, which results in the inability to perform repairs in a timely manner. Moreover, the measured values of the tilted electronic voltage transformer will deviate, thereby affecting the normal operation of the power system. Summary of the Invention

[0005] The purpose of the present invention is to provide an electronic voltage transformer to solve the problem that the connection part of the electronic voltage transformer is prone to looseness during long - term use, which may cause the electronic voltage transformer to tilt.

[0006] To achieve the above purpose, the present invention provides the following technical solutions:

[0007] An electronic voltage transformer includes a support base, a capacitive voltage divider, and an electronic component. The electronic component is fixedly connected above the support base. The capacitive voltage divider is fixedly connected to the electronic component. A terminal block is fixedly connected to the capacitive voltage divider. An installation seat one is provided on the support base. The installation seat one is fixedly connected to the electronic component. A support leg is also fixedly connected to the support base. The number of support legs is 3, and the three support legs are evenly distributed around the support base in a circular pattern. A guide rail is provided inside the installation seat one. One end of the guide rail is hinged to the support leg, and the other end is fixedly connected to the installation seat one. A slider is slidably connected to the guide rail. An adjustment component is also provided inside the installation seat one. When the capacitive voltage divider tilts, the slider slides along the guide rail. The adjustment component adjusts the tilt angle of the capacitive voltage divider by controlling the length of the support leg. An installation seat two is also fixedly connected to the support frame. A motor is provided inside the installation seat two. A reinforcement component is provided inside the installation seat one. The reinforcement component reinforces the support leg driven by the motor.

[0008] It is easy to understand that the electronic voltage transformer is installed in the power grid. When there are vibrations in the equipment in the power grid, ground vibrations, or operating shocks in the power grid, these external disturbance sources transmit vibrations to the transformer directly or indirectly, causing it to vibrate. During long-term use, the connections of the electronic voltage transformer are prone to looseness, which may then lead to the inclination of the electronic voltage transformer. The levelness of the electronic voltage transformer is crucial to ensure accurate measurement. If the transformer is inclined, it will cause a magnetic flux deviation, which will lead to a difference between the measured values of current and voltage and the actual values. This design is provided with an adjustment component inside the electronic voltage transformer. When the electronic voltage transformer is inclined, the internal slider will slide on the guide rail due to gravity. At this time, the adjustment component works and starts to adjust the inclination angle of the electronic voltage transformer. Therefore, this design can automatically sense whether the electronic voltage transformer is inclined and can also automatically adjust the inclination angle of the electronic voltage transformer to ensure the levelness of the electronic voltage transformer, improving the stability and safety of the power grid.

[0009] Preferably, the adjustment component includes a compression spring. One end of the compression spring is fixedly connected to the first mounting seat, and the other end is fixedly connected to the slider. The leg includes a telescopic leg and a fixed leg. The fixed leg is fixedly connected to the support seat. The telescopic leg is slidably connected to the fixed leg. An air vent chamber one is further provided inside the guide rail. An air vent chamber two and an air vent chamber three are respectively provided on the telescopic leg and the fixed leg. The air vent chamber one is communicated with the air vent chamber two, and the air vent chamber two is communicated with the air vent chamber three. The surface of the telescopic leg is in contact with the inner wall of the fixed leg. An air outlet is provided on the guide rail, and the air outlet is located on the side of the guide rail close to the support seat. The slider is in contact with the outside of the air outlet.

[0010] It is easy to understand that through the design of the adjustment component, when the electronic voltage transformer is inclined, one or two of the three legs will be higher than the other legs. At this time, the slider will compress the compression spring due to the action of gravity and slide along the guide rail. At this time, the slider moves away from the air outlet on the guide rail, and the air outlet is opened. At this time, the gravity of the electronic voltage transformer acts on the telescopic leg, and the telescopic leg squeezes the air inside the fixed leg. The air sequentially passes through the air vent chamber three, the air vent chamber two, and the air vent chamber one and is discharged from the air outlet. At this time, the telescopic leg at the higher position continuously slides along the fixed leg. When the heights of the three legs are the same, the compression spring will push the slider to re-block the air outlet, and at this time, the telescopic leg stops sliding. Therefore, this design can automatically determine whether the electronic voltage transformer is inclined without the need for staff to be on-site for inspection, reducing the workload of the staff and improving work efficiency. Moreover, this design can automatically adjust the inclination angle of the electronic voltage transformer without the need for an additional driving device, saving manufacturing costs.

[0011] Preferably, the reinforcement component includes a driving gear fixedly connected to the output end of the motor. There are three transmission gears arranged inside the second mounting seat. The three transmission gears are respectively located on one side of the three legs. The three transmission gears are all meshed with the driving gear. A reinforcement rod is fixedly connected to the transmission gear. One end of the reinforcement rod is provided with a thread. A reinforcement hole is formed in the fixed leg. One end of the reinforcement rod passes through the second mounting seat and extends into the reinforcement hole, and one end of the reinforcement rod contacts the telescopic leg. An unlocking switch and a reinforcement switch are arranged on the guide rail. Both the unlocking switch and the reinforcement switch are electrically connected to the motor. The slider contacts the reinforcement switch, and the reinforcement switch is away from the slider.

[0012] It is easy to understand that in this design, by setting the reinforcement component, when the slider slides along the guide rail away from the air outlet, at this time the slider moves away from the reinforcement switch on the guide rail and contacts the unlocking switch. At this time, the motor starts, the driving gear starts to rotate and drives the transmission gear to rotate. At this time, the reinforcement rod on the rotating gear will move along the reinforcement hole and gradually move away from the telescopic leg. At this time, the telescopic leg loses the pressure of the reinforcement rod, and the adjustment component can adjust the length of the leg. After the adjustment component completes the adjustment, the slider resets away from the unlocking switch and contacts the reinforcement switch. At this time, the reinforcement rod applies pressure to the telescopic leg again, and at this time the telescopic leg cannot move. Therefore, this design can avoid that after the adjustment component completes the adjustment, if the electronic voltage transformer vibrates, the telescopic leg will compress the air inside the third ventilation chamber and the second ventilation chamber, resulting in the shaking of the electronic voltage transformer, which in turn affects the normal operation of the electronic voltage transformer. Therefore, this design improves the stability of the electronic voltage transformer.

[0013] Preferably, two first rectangular grooves are formed in the guide rail. The first rectangular grooves are located on one side of the slider. Two baffles are hinged inside the two first rectangular grooves. A torsion spring is arranged at the hinge of the baffle and the inner wall of the first rectangular groove. The torsion spring pushes the baffle to contact the slider. A second rectangular groove is also formed in the guide rail. The outside of the second rectangular groove is attached to the slider. A baffle is hinged inside the second rectangular groove. A torsion spring is arranged at the hinge of the baffle and the inner wall of the second rectangular groove. The torsion spring pushes the baffle to contact the slider.

[0014] It is easy to understand that when the adjusting component adjusts the tilt angle of the electronic voltage transformer, when the electronic voltage transformer is approaching the horizontal, the slider will gradually close the air outlet. At this time, the size of the air outlet gradually decreases, and the air release speed of the air outlet also gradually decreases. This results in a slowdown in the working speed of the adjusting component when the electronic voltage transformer is approaching the horizontal. Moreover, when the electronic voltage transformer is slightly tilted but still within the acceptable range, the slider will still compress the compression spring to open a gap in the air outlet. This causes the adjusting component to work frequently, increasing wear. This design sets a first baffle and a second baffle on the guide rail. When the slider opens or closes the air outlet, the slider will contact the first baffle or the second baffle. At this time, the air outlet will remain fully open or fully closed. Only when the tilt angle of the electronic voltage transformer exceeds the acceptable range or after the adjusting component adjusts to the horizontal will the slider continue to slide. Therefore, this design not only improves the working speed of the adjusting component when the electronic voltage transformer is approaching the horizontal, but also avoids the frequent operation of the adjusting component, improving the service life of the adjusting component.

[0015] Preferably, the reinforcing rod includes a sliding rod and a rotating rod. A threaded hole is provided on the sliding rod, and the thread is provided on the rotating rod. The thread is threadedly connected to the threaded hole. The rotating rod is rotatably connected to the second mounting seat. The rotating rod is also fixedly connected to the transmission gear. The sliding rod is slidably connected inside the reinforcing hole, and one end of the sliding rod contacts the telescopic leg. When the rotating rod rotates, the sliding rod moves along the reinforcing hole.

[0016] It is easy to understand that this design forms the reinforcement into a sliding rod and a rotating rod. When the transmission gear rotates, the rotating rod rotates with the rotating gear. At this time, due to the thread on the rotating rod being threadedly connected to the threaded hole on the sliding rod, when the rotating rod rotates, the sliding rod will slide along the reinforcing hole. Therefore, this design avoids the overall movement of the reinforcing rod when the transmission gear rotates, which would cause the transmission gear to move together with the reinforcing rod, resulting in increased wear between the transmission gear and the driving gear. Therefore, this design improves the stability of the reinforcing component and also reduces the wear between the transmission gear and the driving gear, improving the service life of the reinforcing component.

[0017] Preferably, a fixed block is provided inside the third ventilation chamber. The fixed block is fixedly connected to the support seat. The surface of the fixed block fits against the inner wall of the second ventilation chamber. An exhaust port is also provided on the fixed leg.

[0018] It is easy to understand that when the reinforcing rod on the reinforcing component applies pressure to the telescopic leg for fixation, since the air vent chambers II and III are respectively formed inside the telescopic leg and the fixed leg, this causes the telescopic leg to deform towards the air vent chamber II under long-term extrusion. When the telescopic leg deforms, the surface of the telescopic leg cannot fit with the reinforcing leg, resulting in air leakage in the air vent chambers II and III, and further causing the length of the support leg to become shorter and the adjustment component to malfunction. This design sets a fixing block inside the air vent chamber III, and the surface of the fixing block fits with the telescopic leg. This enables the telescopic leg not to deform when the reinforcing rod presses the telescopic leg, so this design further improves the service life of the adjustment component.

[0019] Preferably, a first isolation groove is formed on the inner wall of the fixed leg, a second isolation groove is formed on the fixing block, chamfering treatments are performed on the edges of the first isolation groove and the second isolation groove, the distance from the surfaces of the first isolation groove and the second isolation groove to the surface of the telescopic leg is A, and A≥2mm.

[0020] It is easy to understand that when the adjustment component adjusts the length of the support leg, the contact area between the telescopic leg and the fixed leg and the fixing block gradually increases, which causes the moving speed of the telescopic leg to slow down, and further causes the adjustment speed of the adjustment component to decrease. This design respectively forms the first isolation groove and the second isolation groove on the fixed leg and the reinforcing block, which reduces the contact area between the telescopic leg and the fixed leg and the fixing block, and further reduces the friction between the telescopic leg and the fixed leg and the fixing block. This not only reduces the wear of the telescopic leg and improves the service life of the telescopic leg, but also ensures the moving speed of the telescopic leg and improves the adjustment speed of the adjustment component.

[0021] Preferably, a swinging groove is formed on the slider, a limiting rod is hinged inside the swinging groove, a limiting block is arranged inside the first mounting seat, the number of the limiting blocks is 3, and the three limiting blocks are evenly distributed in a circumferential manner inside the first mounting seat and fixedly connected with the first mounting seat.

[0022] It is easy to understand that when the electronic voltage transformer is in a horizontal state, when the electronic voltage transformer vibrates at this time, the vibration will cause the slider on the guide rail to move. The slider moving on the guide rail may contact the unlocking switch, and at this time the motor will be accidentally started, resulting in the telescopic leg losing pressure and sliding, and further causing the electronic voltage transformer to tilt. This design sets a limiting rod on the slider. When the electronic voltage transformer is in a horizontal state and the slider moves, the limiting rod on the slider will contact the limiting block on the first mounting seat, which makes the slider unable to move. When the electronic voltage transformer tilts at a certain angle, the limiting rod swings and enters the swinging groove. Therefore, this design not only avoids the movement of the slider when the electronic voltage transformer is in a horizontal state, but also ensures that the slider can move normally after the electronic voltage transformer tilts.

[0023] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0024] 1. By arranging an adjusting component inside the electronic voltage transformer, when the electronic voltage transformer tilts, the internal slider will slide on the guide rail due to gravity. At this time, the adjusting component works and starts to adjust the tilt angle of the electronic voltage transformer. Therefore, this design can automatically sense whether the electronic voltage transformer tilts and can also automatically adjust the tilt angle of the electronic voltage transformer to ensure the levelness of the electronic voltage transformer, improving the stability and safety of the power grid.

[0025] 2. By opening air outlets on the guide rail, when the slider slides along the guide rail, the air outlets are opened. At this time, the gravity of the electronic voltage transformer acts on the telescopic legs, and the telescopic legs squeeze the air inside the fixed legs. The air sequentially passes through the third ventilation chamber, the second ventilation chamber, and the first ventilation chamber and is discharged from the air outlets. At this time, the telescopic legs at the higher position continuously slide along the fixed legs. When the heights of the three support legs are the same, the compression spring will push the slider to re-block the air outlets, and at this time, the telescopic legs stop sliding. This design can automatically adjust the tilt angle of the electronic voltage transformer without the need to additionally set a driving device, saving the manufacturing cost.

[0026] 3. By arranging a reinforcement component inside the electronic voltage transformer, when the slider slides along the guide rail away from the air outlet, at this time, the slider moves away from the reinforcement switch on the guide rail and contacts the unlocking switch, and the motor starts. The driving gear starts to rotate and drives the transmission gear to rotate. At this time, the reinforcement rod on the rotating gear will move along the reinforcement hole and gradually move away from the telescopic leg. At this time, the telescopic leg loses the pressure of the reinforcement rod, and the adjusting component can adjust the length of the support leg. After the adjusting component completes the adjustment, the slider resets and moves away from the unlocking switch and contacts the reinforcement switch. At this time, the reinforcement rod applies pressure to the telescopic leg again, and at this time, the telescopic leg cannot move. This design improves the stability of the electronic voltage transformer. Description of the Drawings

[0027] Figure 1 is a schematic structural diagram of the electronic voltage transformer of the present invention;

[0028] Figure 2 is Figure 1 a cross-sectional view;

[0029] Figure 3 is Figure 2 the enlarged view at A in

[0030] Figure 4 is Figure 1 the B-B cross-sectional view in

[0031] Figure 5 is Figure 4 the enlarged view at position C in

[0032] Figure 6 is Figure 4 the enlarged view at position D in

[0033] Figure 7 is Figure 1 the sectional view taken along E - E in

[0034] Figure 8 is Figure 7 the enlarged view at position F in

[0035] In the figure: 1. Support base; 2. Capacitive voltage divider; 3. Electronic component; 5. Wiring terminal; 7. First mounting base; 8. Leg; 9. Guide rail; 10. Slide block; 11. Second mounting base; 12. Motor; 13. Compression spring; 14. Telescopic leg; 15. Fixed leg; 16. First ventilation chamber; 17. Second ventilation chamber; 18. Third ventilation chamber; 19. Air outlet; 20. Driving gear; 21. Driven gear; 22. Reinforcing rod; 23. Thread; 24. Reinforcing hole; 25. Unlock switch; 26. Reinforcement switch; 27. First rectangular groove; 28. First baffle; 29. Second rectangular groove; 30. Second baffle; 31. Slide bar; 32. Rotating bar; 33. Threaded hole; 34. Fixed block; 35. Exhaust port; 36. First isolation groove; 37. Second isolation groove; 39. Oscillation groove; 40. Limit rod; 41. Limit block. Detailed implementation manners

[0036] The present invention provides an electronic voltage transformer, and the technical solution is as follows:

[0037] Please refer to Figures 1 to 8 , an electronic voltage transformer, including a support base 1, a capacitive voltage divider 2 and an electronic component 3. The electronic component 3 is fixedly connected above the support base 1, the capacitive voltage divider 2 is fixedly connected to the electronic component 3. The electronic component 3 is a sensor, a voltage divider, a converter, etc. in the prior art. A wiring terminal 5 is fixedly connected to the capacitive voltage divider 2. A first mounting base 7 is provided on the support base 1, and the first mounting base 7 is fixedly connected to the electronic component 3. The support base 1 is also fixedly connected with legs 8, and the number of legs 8 is 3. The three legs 8 are evenly distributed circumferentially on the support base 1. A guide rail 9 is arranged inside the first mounting base 7. One end of the guide rail 9 is hinged to the leg 8, and the other end is fixedly connected to the first mounting base 7. A slide block 10 is slidably connected to the guide rail 9. An adjusting component is also arranged inside the first mounting base 7. When the capacitive voltage divider 2 is tilted, the slide block 10 slides along the guide rail 9, and the adjusting component adjusts the tilt angle of the capacitive voltage divider 2 by controlling the length of the leg 8. A second mounting base 11 is also fixedly connected to the support frame, and a motor 12 is arranged inside the second mounting base 11. A reinforcing component is arranged inside the first mounting base 7, and the reinforcing component drives the leg 8 through the motor 12 for reinforcement.

[0038] Further, please refer to Figures 1 to 8 , the adjusting component includes a compression spring 13. One end of the compression spring 13 is fixedly connected to the first mounting seat 7, and the other end is fixedly connected to the slider 10. The leg 8 includes a telescopic leg 14 and a fixed leg 15. The fixed leg 15 is fixedly connected to the support seat 1. The telescopic leg 14 is slidably connected to the fixed leg 15. An air vent chamber 16 is further provided inside the guide rail 9. An air vent chamber 17 and an air vent chamber 18 are respectively provided on the telescopic leg 14 and the fixed leg 15. The air vent chamber 16 is communicated with the air vent chamber 17, and the air vent chamber 17 is communicated with the air vent chamber 18. The surface of the telescopic leg 14 is attached to the inner wall of the fixed leg 15. An air outlet 19 is provided on the guide rail 9. The air outlet 19 is located on the side of the guide rail 9 close to the support seat 1. The slider 10 is attached to the outside of the air outlet 19. The reinforcement component includes a driving gear 20. The driving gear 20 is fixedly connected to the output end of the motor 12. Three transmission gears 21 are arranged inside the second mounting seat 11. The three transmission gears 21 are respectively located on one side of the three legs 8. The three transmission gears 21 are all meshed with the driving gear 20. A reinforcing rod 22 is fixedly connected to the transmission gear 21. One end of the reinforcing rod 22 is provided with a thread 23. A reinforcing hole 24 is provided on the fixed leg 15. One end of the reinforcing rod 22 passes through the second mounting seat 11 and extends into the reinforcing hole 24, and one end of the reinforcing rod 22 contacts the telescopic leg 14. An unlocking switch 25 and a reinforcing switch 26 are provided on the guide rail 9. The unlocking switch 25 and the reinforcing switch 26 are both touch switches in the prior art. The unlocking switch 25 and the reinforcing switch 26 are both electrically connected to the motor 12. The slider 10 contacts the reinforcing switch 26, and the reinforcing switch 26 is away from the slider 10.

[0039] Please refer to Figures 1 to 8, two rectangular grooves 27 are formed on the guide rail 9. The rectangular grooves 27 are located on one side of the slider 10. A first baffle 28 is hinged inside each of the two rectangular grooves 27. A torsion spring is arranged at the hinge of the first baffle 28 and the inner wall of the rectangular groove 27. The torsion spring pushes the first baffle 28 to contact the slider 10. A rectangular groove 29 is also formed on the guide rail 9. The outer side of the rectangular groove 29 is attached to the slider 10. A second baffle 30 is hinged inside the rectangular groove 29. A torsion spring is arranged at the hinge of the second baffle 30 and the inner wall of the rectangular groove 29. The torsion spring pushes the second baffle 30 to contact the slider 10. The reinforcing rod 22 includes a sliding rod 31 and a rotating rod 32. A threaded hole 33 is formed on the sliding rod 31. The thread 23 is arranged on the rotating rod 32. The thread 23 is threadedly connected with the threaded hole 33. The rotating rod 32 is rotatably connected to the second mounting seat 11. The rotating rod 32 is also fixedly connected to the transmission gear 21. The sliding rod 31 is slidably connected inside the reinforcing hole 24. One end of the sliding rod 31 contacts the telescopic leg 14. When the rotating rod 32 rotates, the sliding rod 31 moves along the reinforcing hole 24. A fixed block 34 is arranged inside the air vent chamber three 18. The fixed block 34 is fixedly connected to the support seat 1. The surface of the fixed block 34 is attached to the inner wall of the air vent chamber two 17. An exhaust port 35 is also formed on the fixed leg 15. An isolation groove one 36 is formed on the inner wall of the fixed leg 15. An isolation groove two 37 is formed on the fixed block 34. Chamfering treatments are made on the edges of the isolation groove one 36 and the isolation groove two 37. The distance from the surfaces of the isolation groove one 36 and the isolation groove two 37 to the surface of the telescopic leg 14 is A, and A = 2 mm. A swing groove 39 is formed on the slider 10. A limiting rod 40 is hinged inside the swing groove 39. A limiting block 41 is arranged inside the first mounting seat 7. The number of the limiting blocks 41 is 3. The three limiting blocks 41 are evenly distributed in a circumferential direction inside the first mounting seat 7 and are fixedly connected to the first mounting seat 7.

[0040] Please refer to Figures 1 to 8, when the electronic voltage transformer is tilted, one or two of the three legs 8 on the support base 1 will be higher than the remaining legs 8, the guide rail 9 inside the mounting base 1 is tilted, and the slider 10 on the side of the leg 8 at a higher position will be affected by gravity to squeeze the compression spring 13 and move along the guide rail 9. At this time, the limiting rod 40 inside the swing groove 39 completely swings into the swing groove 39, the slider 10 squeezes the baffle 28 inside the rectangular groove 27, and the baffle 28 is pressed by the pressure to squeeze the torsion spring and retract into the rectangular groove 27. When the slider 10 moves a certain distance, the air outlet 19 on the guide rail 9 is opened. At this time, the slider 10 will contact the unlocking switch 25 on the guide rail 9, the motor 12 starts, drives the driving gear 20 to rotate and drives the transmission gear 21 to rotate, and the rotating rod 32 rotates following the rotating gear. At this time, since the thread 23 on the rotating rod 32 is threadedly connected to the threaded hole 33 on the sliding rod 31, when the rotating rod 32 rotates, the sliding rod 31 will slide along the reinforcement hole 24. At this time, the sliding rod 31 will gradually move away from the telescopic leg 14. After the telescopic leg 14 loses the pressure of the sliding rod 31, the gravity of the electronic voltage transformer acts on the telescopic leg 14, and the telescopic leg 14 squeezes the air inside the fixed leg 15. The air passes through the third ventilation chamber 18, the second ventilation chamber 17 and the first ventilation chamber 16 in sequence and is discharged from the air outlet 19. At this time, the telescopic leg 14 at a higher position continuously slides along the fixed leg 15. When the heights of the three legs 8 are the same, the compression spring 13 will push the slider 10 to slide along the guide rail 9. At this time, the slider 10 squeezes the baffle 30 on the rectangular groove 29, and the baffle 30 is pressed by the pressure to squeeze the torsion spring and retract into the rectangular groove 29. After the slider 10 moves a certain distance, it moves away from the rectangular groove 27. At this time, the baffle 28 inside the rectangular groove 27 rotates under the action of the torsion spring. When the slider 10 completely blocks the air outlet 19, the slider 10 moves away from the unlocking switch 25 and contacts the reinforcement switch 26 on the guide rail 9. At this time, the motor 12 starts, drives the driving gear 20 to rotate and drives the transmission gear 21 to rotate, and the rotating rod 32 rotates following the rotating gear. At this time, since the thread 23 on the rotating rod 32 is threadedly connected to the threaded hole 33 on the sliding rod 31, when the rotating rod 32 rotates, the sliding rod 31 will slide along the reinforcement hole 24. At this time, the sliding rod 31 will contact the telescopic leg 14 and apply pressure to the telescopic leg 14. At this time, the telescopic cannot move, and the adjustment component completes the adjustment.

[0041] The above has described in detail a specific embodiment of the present invention in conjunction with the accompanying drawings, but the present invention is not limited to the described embodiment. For those skilled in the art, without departing from the principles and ideas of the present invention, various changes, modifications, substitutions, and variations made to these embodiments should still fall within the protection scope of the present invention.

Claims

1. An electronic voltage transformer, comprising a support base (1), a capacitive voltage divider (2) and an electronic component (3), wherein the electronic component (3) is fixedly connected above the support base (1), the capacitive voltage divider (2) is fixedly connected to the electronic component (3), and a wiring terminal (5) is fixedly connected to the capacitive voltage divider (2), characterized in that: The support seat (1) is provided with a mounting seat (7), the mounting seat (7) is fixedly connected to the electronic component (3), the support seat (1) is also fixedly connected with a frame leg (8), the number of the frame legs (8) is 3, and the three frame legs (8) are evenly distributed on the support seat (1), a guide rail (9) is provided inside the mounting seat (7), one end of the guide rail (9) is hinged to the frame leg (8), and the other end is fixedly connected to the mounting seat (7), a slider (10) is slidably connected to the guide rail (9), and the mounting seat An adjusting component is also arranged inside the first (7). When the capacitive voltage divider (2) tilts, the slider (10) slides along the guide rail (9). The adjusting component adjusts the tilt angle of the capacitive voltage divider (2) by controlling the length of the frame leg (8). The support frame is also fixedly connected to a mounting seat (11). A motor (12) is also arranged inside the mounting seat (11). A reinforcement component is arranged inside the first (7). The reinforcement component is driven by the motor (12) to reinforce the frame leg (8).

2. An electronic voltage transformer according to claim 1, characterized in that: The adjustment assembly comprises a compression spring (13), one end of the compression spring (13) is fixedly connected to a mounting seat (7), and the other end is fixedly connected to a slider (10); the frame leg (8) comprises a telescopic leg (14) and a fixed leg (15); the fixed leg (15) is fixedly connected to the support seat (1); the telescopic leg (14) is slidably connected to the fixed leg (15); a ventilation chamber (16) is further provided inside the guide rail (9); the telescopic leg (14) and the fixed leg (15) are A ventilation chamber 2 (17) and a ventilation chamber 3 (18) are respectively provided on the guide rail (9); the ventilation chamber 1 (16) is connected to the ventilation chamber 2 (17); the ventilation chamber 2 (17) is connected to the ventilation chamber 3 (18); the surface of the telescopic leg (14) is in contact with the inner wall of the fixed leg (15); an air outlet (19) is provided on the guide rail (9); the air outlet (19) is located on a side of the guide rail (9) close to the support seat (1); and the slider (10) is in contact with the outer side of the air outlet (19).

3. An electronic voltage transformer according to claim 2, characterized in that: The reinforcement component comprises a driving gear (20), the driving gear (20) being fixedly connected to the output end of the motor (12), three transmission gears (21) being arranged inside the second mounting seat (11), the three transmission gears (21) being respectively located on one side of the three legs (8), the three transmission gears (21) being meshed with the driving gear (20), a reinforcement rod (22) being fixedly connected to the transmission gear (21), one end of the reinforcement rod (22) being provided with a thread (23), the fixed leg (1 5), a reinforcement hole (24) is opened on the guide rail (9), one end of the reinforcement rod (22) passes through the second mounting seat (11) and extends into the reinforcement hole (24), and one end of the reinforcement rod (22) contacts the telescopic leg (14), an unlocking switch (25) and a reinforcement switch (26) are arranged on the guide rail (9), the unlocking switch (25) and the reinforcement switch (26) are both electrically connected to the motor (12), the slider (10) contacts the reinforcement switch (26), and the reinforcement switch (26) is away from the slider (10).

4. An electronic voltage transformer according to claim 2, characterized in that: The guide rail (9) is provided with two rectangular grooves (27), the rectangular grooves (27) being located on one side of the slider (10), the two rectangular grooves (27) being hinged with baffles (28) inside, the baffles (28) being hinged with the inner wall of the rectangular grooves (27) being provided with torsion springs, the torsion springs pushing the baffles (28) to contact the slider (10), the guide rail (9) being further provided with rectangular grooves (29), the outer side of the rectangular grooves (29) being in contact with the slider (10), the rectangular grooves (29) being hinged with baffles (30) inside, the baffles (30) being hinged with the inner wall of the rectangular grooves (29) being provided with torsion springs, the torsion springs pushing the baffles (30) to contact the slider (10).

5. An electronic voltage transformer according to claim 3, characterized in that: The reinforcement rod (22) comprises a sliding rod (31) and a rotating rod (32). A threaded hole (33) is provided on the sliding rod (31). The thread (23) is arranged on the rotating rod (32). The thread (23) is threadedly connected to the threaded hole (33). The rotating rod (32) is rotationally connected to the second mounting seat (11). The rotating rod (32) is also fixedly connected to the transmission gear (21). The sliding rod (31) is slidably connected inside the reinforcement hole (24), and one end of the sliding rod (31) is in contact with the telescopic leg (14). When the rotating rod (32) rotates, the sliding rod (31) moves along the reinforcement hole (24).

6. An electronic voltage transformer according to claim 4, characterized in that: A fixing block (34) is arranged inside the ventilation chamber three (18), the fixing block (34) is fixedly connected to the support seat (1), the surface of the fixing block (34) is in contact with the inner wall of the ventilation chamber two (17), and an exhaust port (35) is also provided on the fixing leg (15).

7. An electronic voltage transformer according to claim 6, characterized in that: An isolation groove 1 (36) is provided on the inner wall of the fixed leg (15), and an isolation groove 2 (37) is provided on the fixed block (34). The edges of the isolation groove 1 (36) and the isolation groove 2 (37) are both chamfered. The distance between the surface of the isolation groove 1 (36) and the isolation groove 2 (37) and the surface of the telescopic leg (14) is A, and A is ≥ 2 mm.

8. An electronic voltage transformer according to claim 7, characterized in that: The slider (10) is provided with a swinging groove (39), a limit rod (40) is hinged inside the swinging groove (39), a limit block (41) is arranged inside the mounting seat (7), the number of the limit blocks (41) is 3, and the three limit blocks (41) are evenly distributed around the circumference inside the mounting seat (7) and are fixedly connected to the mounting seat (7).

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