High-capacity arc suppression coil structure

Abstract

The utility model relates to the technical field of arc suppression coils, and discloses a high-capacity arc suppression coil structure, which comprises a protection plate, the bottom of the protection plate is slidably connected with a cabinet body fixing seat, one side of the outer wall of the fixing seat is provided with a winding group, the lower surface of the protection plate is fixedly connected with a connecting plate, and the connecting plate is fixedly connected with the cabinet body fixing seat. A buffering assembly is arranged on the lower surface of the outer wall of the connecting plate and used for buffering vibration, a rotating shaft is rotationally connected to the interior of the connecting plate, a connecting rod is fixedly connected to the outer wall of the rotating shaft, and a damping assembly is arranged at one end of the connecting rod and used for reducing vibration generated during buffering of the protective plate. According to the anti-collision device, the problems that the resistance to external force impact of the structure is poor, mechanical damage is prone to occurring in long-term operation, the buffering protection capacity of the device is affected, and potential safety hazards are increased are solved, stable buffering protection is achieved, the anti-collision effect is achieved, and then the service life of the whole device is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of arc suppression coil technology, and in particular to a high-capacity arc suppression coil structure. Background Technology

[0002] High-capacity arc suppression coils consist of a high-permeability iron core, high-temperature resistant windings, tap changers, a cooling system, and digital control and protection devices. They compensate for the grid's capacitive current to ground by automatically adjusting the inductive reactance, reducing the arc current at the grounding point during single-phase ground faults and preventing overvoltage damage to the system. Their structural design emphasizes high capacity, reliability, and intelligence, meeting the capacitive current compensation requirements of large-scale power grids. The use of high-capacity arc suppression coils is crucial to adapt to the ever-increasing capacitive current to ground in modern power grids, ensuring the safety, stability, and efficiency of grid operation, especially in ultra-high voltage and large-capacity power grids.

[0003] Traditional high-capacity arc suppression coils compensate for the grid's ground capacitance current by adjusting the inductive reactance through a closed iron core, high-strength windings, and mechanical tap changers. This adjustment is typically achieved manually or with simple automated control. It primarily relies on the segmented adjustment of the mechanical tap changer to match the grid capacitance current, and uses natural or forced air cooling to ensure stable operating temperature. When a single-phase ground fault occurs in the grid, the traditional high-capacity arc suppression coil reduces the arc current at the grounding point by compensating for the inductive current, preventing overvoltage and ensuring the safe and stable operation of the grid.

[0004] Traditional high-capacity arc suppression coils are typically installed in an exposed manner for ease of maintenance and heat dissipation. This design makes them less resistant to external impacts, and they are prone to mechanical damage during long-term operation, affecting the equipment's buffering and protection capabilities and increasing safety hazards. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a high-capacity arc suppression coil structure, which aims to improve the problem that traditional high-capacity arc suppression coil structures have poor resistance to external impacts, are prone to mechanical damage during long-term operation, affect the buffer protection capability of the equipment, and increase safety hazards.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a high-capacity arc-suppression coil structure, including a protective plate, a cabinet fixing seat slidably connected to the bottom of the protective plate, a winding group provided on one side of the outer wall of the fixing seat, a connecting plate fixedly connected to the lower surface of the protective plate, a buffer assembly provided on the lower surface of the outer wall of the connecting plate, the buffer assembly being used to buffer vibration, a rotating shaft rotatably connected inside the connecting plate, a connecting rod fixedly connected to the outer wall of the rotating shaft, and a shock-absorbing assembly provided at one end of the connecting rod, the shock-absorbing assembly being used to reduce the vibration generated when the protective plate buffers;

[0007] The shock absorption assembly includes a piston plate, the outer wall of which is rotatably connected to one end of the connecting rod. An oil tank is slidably connected to the outer wall of the piston plate. An oil chamber is formed in the middle of the oil tank. A cavity is formed on the outer side of the inside of the oil tank. A micro-perforated plate is fixedly connected inside the oil tank.

[0008] Furthermore, the buffer assembly includes a telescopic rod, one end of which is fixedly connected to the lower surface of the connecting plate, and a buffer spring is sleeved on the outer wall of the telescopic rod.

[0009] Furthermore, a support base is fixedly connected to the bottom of the fixing base, a screw is provided inside the fixing base, nuts are threaded to both ends of the screw, a washer is provided between the nut and the fixing base, and a partition component is provided on the outer wall of the screw, the partition component is used to separate the winding group.

[0010] Furthermore, the separating component includes a threaded sleeve, the inner thread of which is connected to the outer wall of the screw, and a separating plate is rotatably connected to the outer wall of the threaded sleeve.

[0011] Furthermore, the outer wall of the oil tank is fixedly connected to the inside of the cabinet mounting base, and the oil tank is used to store oil.

[0012] Furthermore, the bottom of the telescopic rod is fixedly connected inside the cabinet mounting base, and the telescopic rod is used to guide the extension and retraction of the buffer spring.

[0013] Furthermore, one end of the buffer spring is fixedly connected to the lower surface of the connecting plate, and the other end of the buffer spring is fixedly connected to the inside of the cabinet fixing base.

[0014] Furthermore, the partition plate is disposed in the middle of the winding assembly, and the partition plate is used to divide the winding assembly.

[0015] This utility model has the following beneficial effects:

[0016] 1. In this utility model, the protective plate first protects against external forces, and then the connecting plate, telescopic rod and buffer spring work together to buffer the external forces. During this process, the movement of the connecting plate, the connecting rod and the rotating shaft drive the piston plate to slide inside the oil chamber. Then, the micro-perforated plate, the cavity and the oil tank are used for shock absorption. This solves the problem of poor resistance to external force impact, easy mechanical damage during long-term operation, affecting the buffer protection capability of the equipment and increasing safety hazards. Stable buffer protection is achieved, thereby realizing the anti-collision effect and extending the overall service life of the equipment.

[0017] 2. In this utility model, the threaded sleeve is first driven to rotate on the outer wall of the screw, thereby driving the partition plate to move on the outer wall of the screw and adjusting its position to separate the winding group. Then, the nut is driven to move at both ends of the screw, thereby pushing the fixed seat to stably fix the winding group. This reduces the displacement, loosening or deformation of the winding caused by mechanical vibration or electromagnetic force during operation, and ensures that the arc suppression coil can maintain stable operation for a long time under high load and complex working conditions. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of a high-capacity arc-suppression coil structure proposed in this utility model.

[0019] Figure 2 This is a schematic diagram of one side of the protective plate of a high-capacity arc suppression coil structure proposed in this utility model.

[0020] Figure 3 This is a schematic diagram of the internal structure of the mounting base for a large-capacity arc-suppression coil structure proposed in this utility model;

[0021] Figure 4 This is a schematic diagram of the internal structure of an oil tank with a large-capacity arc-suppression coil structure proposed in this utility model;

[0022] Figure 5 This is a schematic diagram of one side of the fixing seat of a large-capacity arc suppression coil structure proposed in this utility model.

[0023] Legend:

[0024] 1. Protective plate; 2. Fixed base; 3. Connecting plate; 4. Telescopic rod; 5. Buffer spring 1; 6. Connecting rod; 7. Rotating shaft; 8. Piston plate; 9. Oil chamber; 10. Micro-hole plate; 11. Cavity; 12. Oil tank; 13. Support base; 14. Winding assembly; 15. Screw; 16. Nut; 17. Divider plate; 18. Threaded sleeve. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Reference Figure 1 - Figure 4This utility model provides an embodiment of a high-capacity arc suppression coil structure, including a protective plate 1. A cabinet fixing seat 2 is slidably connected to the bottom of the protective plate 1. The protective plate 1 effectively buffers the impact force and further maintains the stability of the internal structure. A winding group 14 is provided on one side of the outer wall of the fixing seat 2. The winding group 14 is firmly connected to the fixing seat 2 and forms a tight combination with the entire arc suppression coil structure to ensure the stability of electromagnetic performance during operation. A connecting plate 3 is fixedly connected to the lower surface of the protective plate 1. A buffer component is provided on the lower surface of the outer wall of the connecting plate 3. The buffer component is used to buffer vibration. The buffer component can effectively absorb the vibration energy generated by the external force during the sliding of the protective plate 1 and reduce the impact damage to the overall structure. A rotating shaft 7 is rotatably connected inside the connecting plate 3. A connecting rod 6 is fixedly connected to the outer wall of the rotating shaft 7. A shock-absorbing component is provided at one end of the connecting rod 6. The shock-absorbing component is used to reduce the vibration generated by the protective plate 1 during buffering. The shock-absorbing component is used to reduce the vibration generated by the protective plate 1 during buffering, thereby providing a more stable operating environment for the overall arc suppression coil structure.

[0027] The shock absorption assembly includes a piston plate 8, the outer wall of which is rotatably connected to one end of a connecting rod 6. An oil tank 12 is slidably connected to the outer wall of the piston plate 8, which can effectively absorb and buffer vibrations using hydraulic principles. An oil chamber 9 is provided in the middle of the oil tank 12. The oil chamber 9 is used to store liquid medium and achieves buffering effect by compressing the liquid medium during the movement of the piston plate 8. A cavity 11 is provided on the inner and outer sides of the oil tank 12. The cavity 11 is connected to the oil chamber 9 to ensure that the liquid can flow smoothly under pressure and achieve shock absorption effect. A microporous through plate 10 is fixedly connected inside the oil tank 12. The microporous through plate 10 further buffers the impact force by limiting the flow rate of the oil, thereby ensuring the stability of the protective plate 1 during vibration. The buffer assembly includes a telescopic rod 4, one end of which is fixedly connected to the lower surface of the connecting plate 3. A buffer spring 5 is sleeved on the outer wall of the telescopic rod 4.

[0028] Specifically, when a large-capacity arc suppression coil structure is required, to cope with the impact of external forces on the equipment, the protective plate 1 can slide inside the fixed base 2. When the protective plate 1 is subjected to an external impact, its sliding will cause the connecting plate 3 to move inside the fixed base 2. The movement of the connecting plate 3 will put pressure on the buffer spring 5, causing the buffer spring 5 to contract, thereby absorbing part of the external impact energy. At the same time, the movement of the connecting plate 3 will also drive the other end of the connecting rod 6 to move, thereby causing the piston plate 8 to slide inside the oil tank 12. The internal movement pressurizes the oil in the oil chamber 9, causing the oil to flow through the micro-perforated plate 10 into the cavity 11. During the rebound of the buffer spring 5, the connecting plate 3 is pushed upward, and the connecting rod 6 also drives the piston plate 8 to slide back to its original position. During this process, the oil flows back into the oil chamber 9 through the micro-perforated plate 10, thereby effectively reducing the vibration generated when the buffer spring 5 rebounds. This series of actions can buffer the vibration of the protective plate 1 and further protect the arc suppression coil structure from vibration damage caused by external impact, thereby improving the stability and safety of the equipment.

[0029] Reference Figure 1 and Figure 5 A support base 13 is fixedly connected to the bottom of the fixed base 2. A screw 15 is installed inside the fixed base 2. The screw 15 is used to install and adjust the separating component, facilitating adjustments to the structural layout of the winding assembly 14. Nuts 16 are threaded to both ends of the screw 15. A washer is placed between the nut 16 and the fixed base 2. The washer design not only reduces friction but also absorbs some vibration energy, further improving the stability of the equipment operation. A separating component is installed on the outer wall of the screw 15. The separating component is used to separate the winding assembly 14. The separating component includes a threaded sleeve 18. The inner thread of the threaded sleeve 18 is threadedly connected to the outer wall of the screw 15. The outer wall of the threaded sleeve 18 is rotatably connected to... The separator 17 is rotatably connected to achieve flexible adjustment, so that the separation distance of the winding group 14 can be adjusted as needed to further optimize the operation of the arc suppression coil. The outer wall of the oil tank 12 is fixedly connected to the inside of the cabinet fixing seat 2. The oil tank 12 is used to store oil. The bottom of the telescopic rod 4 is fixedly connected to the inside of the cabinet fixing seat 2. The telescopic rod 4 is used to guide the extension and retraction of the buffer spring 5. One end of the buffer spring 5 is fixedly connected to the lower surface of the connecting plate 3, and the other end of the buffer spring 5 is fixedly connected to the inside of the cabinet fixing seat 2. The separator 17 is set in the middle of the winding group 14 and is used to separate the winding group 14.

[0030] Specifically, in the structural design of the middle winding group 14 of the arc suppression coil, the winding group 14 can be adjusted by driving the threaded sleeve 18 to rotate on the outer wall of the screw 15. Through the threaded engagement between the threaded sleeve 18 and the screw 15, the threaded sleeve 18 can move the partition plate 17 along the outer wall of the screw 15 during rotation, thereby adjusting the distance between the multiple partition plates 17. This achieves separation and protection of the middle winding group 14. The movement of the partition plates 17 effectively prevents heat accumulation or electromagnetic interference caused by excessive tightness in the winding group 14 during operation. To prevent interference and ensure the stable operation of the winding assembly 14, the drive nut 16 rotates at both ends of the screw 15. Utilizing the threaded relationship between the nut 16 and the screw 15, the nut 16 can be made to fit against the outer wall of the fixing seat 2, thereby stably fixing the fixing seat 2 to both sides of the winding assembly 14. This structural design not only improves the mechanical stability of the winding assembly 14 but also enables the separation and adjustment of the winding assembly 14, preventing misalignment or damage to the winding assembly 14 caused by mechanical vibration or the operating environment, further enhancing the reliability and durability of the high-capacity arc suppression coil.

[0031] Working principle: When a high-capacity arc suppression coil structure is required, when the protective plate 1 is impacted by an external force, it will slide inside the fixed seat 2, thereby causing the connecting plate 3 to slide inside the fixed seat 2. The movement of the connecting plate 3 will put pressure on the buffer spring 5, causing it to contract. At the same time, the movement of the connecting plate 3 will also drive one end of the connecting rod 6 to move, thereby causing the piston plate 8 to slide inside the oil tank 12 through the other end of the connecting rod 6, so that the piston plate 8 can be stably moved within the oil tank 12. The internal sliding of 2 allows the piston plate 8 to pressurize the oil inside the oil chamber 9, causing the oil to flow through the micro-perforated plate 10 into the cavity 11. When the buffer spring 5 rebounds, it pushes the connecting plate 3 to move upward, which in turn drives the piston plate 8 back to its original position via the connecting rod 6. During this process, the movement of the piston plate 8 causes the oil to flow back into the oil chamber 9 through the micro-perforated plate 10, thereby reducing the vibration generated when the buffer spring 5 rebounds, buffering the vibration of the protective plate 1, and thus protecting the arc suppression coil structure.

[0032] Furthermore, the threaded sleeve 18 is driven to rotate on the outer wall of the screw 15. In conjunction with the threaded relationship between the threaded sleeve 18 and the screw 15, the threaded sleeve 18 can drive the partition plate 17 to move on the outer wall of the screw 15, thereby adjusting the distance between the multiple partition plates 17 and thus separating the middle winding group 14. Finally, the nut 16 is driven to rotate at both ends of the screw 15. In conjunction with the threaded relationship between the nut 16 and the screw 15, the nut 16 is made to fit against the outer wall of the fixing seat 2, thereby stably fixing the fixing seat 2 on both sides of the winding group 14.

[0033] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-capacity arc suppression coil structure, comprising a protective plate (1), characterized in that: The bottom of the protective plate (1) is slidably connected to a cabinet fixing seat (2). A winding group (14) is provided on one side of the outer wall of the fixing seat (2). A connecting plate (3) is fixedly connected to the lower surface of the protective plate (1). A buffer assembly is provided on the lower surface of the outer wall of the connecting plate (3). The buffer assembly is used to buffer vibration. A rotating shaft (7) is rotatably connected inside the connecting plate (3). A connecting rod (6) is fixedly connected to the outer wall of the rotating shaft (7). A shock-absorbing assembly is provided at one end of the connecting rod (6). The shock-absorbing assembly is used to reduce the vibration generated when the protective plate (1) is buffered. The shock absorption assembly includes a piston plate (8), the outer wall of which is rotatably connected to one end of the connecting rod (6), and an oil tank (12) is slidably connected to the outer wall of the piston plate (8). An oil chamber (9) is opened in the middle of the oil tank (12), and a cavity (11) is opened on the outer side of the inside of the oil tank (12). A micro-perforated plate (10) is fixedly connected inside the oil tank (12).

2. The high-capacity arc-suppression coil structure according to claim 1, characterized in that: The buffer assembly includes a telescopic rod (4), one end of which is fixedly connected to the lower surface of the connecting plate (3), and a buffer spring (5) is sleeved on the outer wall of the telescopic rod (4).

3. The high-capacity arc-suppression coil structure according to claim 1, characterized in that: The bottom of the fixed seat (2) is fixedly connected to a support seat (13). The fixed seat (2) is provided with a screw (15). Both ends of the screw (15) are threaded with nuts (16). A washer is provided between the nut (16) and the fixed seat (2). The outer wall of the screw (15) is provided with a partition component, which is used to separate the winding group (14).

4. The high-capacity arc-suppression coil structure according to claim 3, characterized in that: The separating component includes a threaded sleeve (18), the inner thread of which is connected to the outer wall of the screw (15), and a separating plate (17) is rotatably connected to the outer wall of the threaded sleeve (18).

5. The high-capacity arc-suppression coil structure according to claim 1, characterized in that: The outer wall of the oil tank (12) is fixedly connected to the inside of the cabinet mounting base (2), and the oil tank (12) is used to store oil.

6. The high-capacity arc-suppression coil structure according to claim 2, characterized in that: The bottom of the telescopic rod (4) is fixedly connected to the inside of the cabinet fixing seat (2), and the telescopic rod (4) is used to guide the extension and retraction of the buffer spring (5).

7. The high-capacity arc-suppression coil structure according to claim 2, characterized in that: One end of the buffer spring (5) is fixedly connected to the lower surface of the connecting plate (3), and the other end of the buffer spring (5) is fixedly connected to the inside of the cabinet fixing seat (2).

8. The high-capacity arc-suppression coil structure according to claim 4, characterized in that: The partition plate (17) is disposed in the middle of the winding group (14), and the partition plate (17) is used to divide the winding group (14).

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