Vibration energy dissipation device and high-rise structure transformer

Abstract

The invention provides a vibration energy dissipation device and a high-rise structure transformer. The vibration energy dissipation device comprises two clamping assemblies and two vibration reduction assemblies. The two clamping assemblies are located at the upper end and the lower end of the winding iron core correspondingly and used for being matched with each other to clamp the winding iron core. The two vibration reduction assemblies are correspondingly connected with one clamping assembly, and each vibration reduction assembly is provided with a plurality of suspended swing pieces. And when the winding iron core vibrates, each swinging piece generates reverse damping force on the winding iron core by utilizing own inertia. According to the vibration energy dissipation device provided by the invention, the principle of inertia of the plurality of suspension swing parts in each vibration reduction assembly is utilized, so that each swing part generates reverse damping force when the winding iron core vibrates. A traditional spring damper does not need to be arranged, spring failure is avoided, the reliability of equipment operation is remarkably improved, and downtime and economic losses are reduced.

Description

Technical Field

[0001] This invention belongs to the field of multi-dimensional vibration reduction and noise reduction technology for transformers, specifically relating to a vibration energy dissipation device and a tall structure transformer. Background Technology

[0002] With the increasing vertical layout of urban power grids and the construction of high-altitude industrial facilities, more and more transformers are being installed on rooftops, bridge towers, or elevated substations. This places higher demands on the stability of transformers. During operation, the vibrations caused by electromagnetic forces and magnetostrictive effects cannot be ignored. If not effectively suppressed, long-term vibrations can lead to structural fatigue and insulation aging, threatening the safe operation of the equipment. Currently, spring dampers are commonly used devices to suppress transformer vibration. They absorb and dissipate vibration energy through the elastic deformation of the spring and the energy dissipation of the damping medium. However, under the influence of high-frequency vibration and high-temperature environment generated during transformer operation, spring components are prone to fatigue failure and elastic decay. For transformers installed at high altitudes, frequent replacement of failed spring dampers not only requires specialized high-altitude work equipment and personnel, but also causes long downtime and economic losses, posing significant safety hazards and failing to meet the requirements of modern power grids for equipment reliability and economy. Summary of the Invention

[0003] This invention provides a vibration energy dissipation device and a tall structure transformer, aiming to reduce the maintenance frequency of the transformer and improve the reliability of internal vibration reduction.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is as follows: Firstly, a vibration energy dissipation device is provided, comprising two clamping components and two vibration damping components; the two clamping components are respectively located at the upper and lower ends of the winding core, and are used to cooperate with each other to clamp the winding core; the two vibration damping components are respectively connected to one of the clamping components, and each vibration damping component has multiple suspended swinging elements; when the winding core vibrates, each swinging element uses its own inertia to generate a reverse damping force on the winding core.

[0005] In conjunction with the first aspect, in one possible implementation, each damping component includes two damping boxes located on opposite sides of the winding core. Each damping box includes an outer shell and a sealing box. The outer shell is connected to the clamping assembly. The sealing box is located inside the outer shell, with multiple swinging components suspended from the top wall, and the sealing box is filled with damping fluid.

[0006] In some embodiments, each swinging component includes a chain and a mass block; one end of the chain is provided with a lifting ring and is connected to the top wall of the sealed box; the mass block is located at the other end of the chain and is immersed in the damping fluid.

[0007] For example, the mass block has multiple through damping holes.

[0008] For example, a heat dissipation interlayer is formed between the outer shell and the sealed box, and coolant is circulated in the heat dissipation interlayer of both vibration damping boxes and the two are connected by heat dissipation pipes.

[0009] In conjunction with the first aspect, in one possible implementation, each clamping assembly includes a mounting frame and two clamping plates; the mounting frame is mounted on the winding core; the two clamping plates are slidably mounted on the mounting frame and located on opposite sides of the mounting frame, with the opposite sides of the two clamping plates respectively connected to one of the vibration damping boxes.

[0010] In some embodiments, two grooves are provided at intervals along the vertical direction on the clamping plate, and the vibration damping box is disposed between the two grooves and abuts against the inner wall of the groove.

[0011] For example, a first connecting ring is provided at the bottom of the groove below the clamping plate above the winding core, and a second connecting ring is provided at the top of the groove above the clamping plate below the winding core. The first connecting ring and the second connecting ring are fastened together by bolts.

[0012] For example, the mounting bracket has threaded rods horizontally at both ends, and the two ends of the two clamps are respectively inserted through one of the threaded rods and fastened with nuts.

[0013] The beneficial effects of the vibration energy dissipation device provided by this invention are as follows: Compared with the prior art, this invention sets two clamping components at the upper and lower ends of the winding core. The two components cooperate to clamp the winding core, ensuring the stability of the connection between the device and the winding core. This effectively limits the displacement of the winding core during vibration, providing a stable foundation for vibration reduction and noise reduction. Simultaneously, the two damping components are connected to the clamping components respectively. Multiple suspended swing elements in each damping component utilize the principle of inertia to generate a reverse damping force when the winding core vibrates. Compared with the traditional spring damper's reliance on elastic deformation for energy dissipation, this invention avoids the defects of spring fatigue failure and elastic decay under high-frequency vibration and high-temperature environments. It reduces the frequency of high-altitude maintenance due to spring elastic failure, significantly improves equipment reliability, reduces downtime and economic losses, and better meets the stringent requirements of modern power grids for equipment reliability and economy.

[0014] Secondly, embodiments of the present invention also provide a tall structure transformer, including a vibration energy dissipation device.

[0015] The beneficial effects of the tall structure transformer provided by this invention are as follows: Compared with the prior art, the tall structure transformer of this invention is equipped with a vibration energy dissipation device with two clamping components at the upper and lower ends of the winding core, which firmly clamps the winding core and ensures structural stability; at the same time, through the inertial action of multiple suspended swinging parts in the two vibration damping components, a reverse damping force is generated when the winding core vibrates, avoiding the problem of fatigue failure of traditional spring dampers in high-frequency vibration and high-temperature environments, effectively suppressing vibration caused by electromagnetic force and magnetostriction effect, reducing the risk of structural fatigue and insulation aging, improving the reliability and safety of the tall structure transformer in high-altitude complex environments, and reducing high-altitude maintenance costs and downtime losses. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural schematic diagram of the vibration energy dissipation device provided in an embodiment of the present invention; Figure 2 This is a three-dimensional structural diagram of the vibration damping component used in an embodiment of the present invention; Figure 3 This is a front view schematic diagram of the vibration damping component used in an embodiment of the present invention; Figure 4 for Figure 3 A partial view of area A in the middle; Figure 5 This is a three-dimensional structural diagram of the clamping assembly used in an embodiment of the present invention; In the picture: 10. Clamping assembly; 11. Mounting bracket; 12. Clamping plate; 13. Groove; 14. First connecting ring; 15. Second connecting ring; 16. Bolt; 17. Threaded rod; 20. Vibration damping assembly; 21. Vibration damping box; 211. Outer shell; 212. Sealing box; 213. Damping fluid; 214. Heat dissipation jacket; 215. Heat dissipation pipe; 30. Swinging component; 31. Chain; 32. Lifting ring; 33. Mass block; 34. Damping hole; 40. Winding core. Detailed Implementation

[0017] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0018] It should be noted that when an element is referred to as being "set on" another element, it can be directly on or indirectly on the other element. It should be understood that the terms "upper," "lower," "front," "rear," "top," and "bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0019] Please refer to the following: Figure 1 and Figure 2 The vibration energy dissipation device provided by the present invention will now be described. The vibration energy dissipation device includes two clamping components 10 and two vibration damping components 20; the two clamping components 10 are respectively located at the upper and lower ends of the winding core 40, and are used to cooperate with each other to clamp the winding core 40; the two vibration damping components 20 are respectively connected to one of the clamping components 10, and each vibration damping component 20 has multiple suspended swing elements 30; when the winding core 40 vibrates, each swing element 30 uses its own inertia to generate a reverse damping force on the winding core 40.

[0020] It should be noted that the vibration transmission path is as follows: the winding core 40 vibrates, and the vibration is transmitted to the vibration damping component 20 through the clamping assembly 10, which is in contact with the winding core 40. Each swinging component 30 moves in the opposite direction due to its own inertia, providing damping force for the overall structure. The clamping assembly 10 is rigidly connected to the winding core 40, which can ensure that the vibration energy is efficiently transmitted to the swinging components 30.

[0021] Each swing element 30 is suspended and has multi-degree-of-freedom motion capability. When the winding core 40 vibrates, the swing element 30 lags behind the movement of the clamping assembly 10 due to inertia, forming a relative displacement with the winding core 40. This relative displacement causes the swing element 30 to exert a reverse damping force on the clamping assembly 10, thereby suppressing the vibration of the winding core 40. The inertia of each swing element 30 itself can convert the vibration energy of the winding core 40 into the swing kinetic energy of each swing element 30 for energy dissipation.

[0022] Compared to traditional spring dampers, this device utilizes the inertia of the oscillating element 30, rather than an elastic element, to provide damping force. This solves the failure problem of traditional springs at high frequencies and high temperatures, reducing high-altitude maintenance costs and downtime losses. It can also be used as part of an earthquake or high-altitude transformer wind vibration protection system to enhance the transformer's external disaster resistance.

[0023] Compared with existing technologies, the vibration energy dissipation device provided by this invention has two clamping components 10 at the upper and lower ends of the winding core 40. These components work together to clamp the winding core 40, ensuring a stable connection between the device and the winding core 40. This effectively limits the displacement of the winding core 40 during vibration, providing a stable foundation for vibration reduction and noise reduction. Simultaneously, two damping components 20 are connected to the clamping components 10. Multiple suspended swing elements 30 in each damping component 20 utilize the principle of inertia to generate a reverse damping force when the winding core 40 vibrates. Compared to traditional spring dampers that rely on elastic deformation for energy dissipation, this invention avoids the defects of spring fatigue failure and elastic decay under high-frequency vibration and high-temperature environments. It reduces the frequency of high-altitude maintenance due to spring elasticity failure, significantly improves equipment reliability, reduces downtime and economic losses, and better meets the stringent requirements of modern power grids for equipment reliability and economy.

[0024] Please see Figure 3 Each vibration damping component 20 includes two vibration damping boxes 21, which are located on opposite sides of the winding core 40. Each vibration damping box 21 includes an outer shell 211 and a sealing box 212. The outer shell 211 is connected to the clamping component 10. The sealing box 212 is located inside the outer shell 211, with multiple swinging components 30 suspended from the top wall, and the sealing box 212 is filled with damping fluid 213.

[0025] It should be noted that the damping fluid 213 can be made of high-temperature resistant silicone oil or other media, and its performance is less affected by temperature. The sealing structure of the sealing box 212 can prevent leakage of the damping fluid 213 and can withstand high-temperature environments. Compared with traditional spring dampers, it can avoid the problem of decreased elastic modulus caused by high temperature.

[0026] The vibration of the winding core 40 is transmitted to the outer casing 211 through the clamping assembly 10, and then to each oscillating component 30 through the sealing box 212, causing each oscillating component 30 to oscillate in the damping fluid 213. When the oscillating component 30 moves in the damping fluid 213, the viscous resistance of the fluid provides additional damping. The pressure fluctuations generated by the flow of the damping fluid 213 are fed back to the outer casing 211 through the sealing box 212, forming a closed loop of damping force. The damping boxes 21 on both sides of the clamping assembly 10 are symmetrically arranged, forming balanced damping in the horizontal direction. The three-dimensional movement of the oscillating component 30 in the damping fluid 213 can simultaneously suppress vibrations in the vertical direction and in all horizontal directions.

[0027] The vibration energy generated by the winding core 40 is converted into the kinetic energy of the oscillating element 30. The oscillating element 30 oscillates and generates heat through friction within the damping fluid 213. The viscous effect of the damping fluid 213 can dissipate the vibration energy of the winding core 40 as heat energy, replacing the elastic damping of traditional spring dampers and reducing the frequency of transformer maintenance. The viscous damping provided by the damping fluid 213 can effectively dissipate the vibration energy transmitted to the oscillating element 30, and the liquid environment of the damping fluid 213 can reduce the impact wear of the oscillating element 30, extending its service life.

[0028] The vibration damping box 21 features a modular design, allowing it to be manufactured and installed as an independent unit. The vibration damping boxes 21 are symmetrically arranged on both sides of the winding core 40, facilitating balance adjustment and simplifying the installation process. Furthermore, the size and quantity of the vibration damping boxes 21 can be adjusted according to the transformer capacity to achieve efficient vibration damping of the transformer.

[0029] Please see Figure 3 and Figure 4 Each swinging component 30 includes a chain 31 and a mass block 33; one end of the chain 31 is provided with a lifting ring 32 and is connected to the top wall of the sealed box 212; the mass block 33 is located at the other end of the chain 31 and is immersed in the damping fluid 213.

[0030] It should be noted that the lifting ring 32, as the suspension node of the chain 31, is fixed to the top wall of the sealed box 212 by bolts 16 or welding. The lifting ring 32 allows the chain 31 to swing freely in the horizontal direction, forming a spherical pendulum structure. The joint design of the lifting ring 32 allows for self-adjustment to accommodate installation errors. The chain 31 uses flexible steel cable or hinged chain links, ensuring no rigid constraints, avoiding rigid impacts, and reducing the risk of fatigue fracture. Furthermore, since the chain 31 is suspended inside the sealed box 212 by the lifting ring 32, there is no need to install fatigue-prone components such as springs, extending its service life.

[0031] Mass block 33 is rigidly connected to the lower end of chain 31 via threads or grooves. The center of gravity of mass block 33 is located on the extension line of chain 31, ensuring oscillation stability. Mass block 33 is completely immersed in damping fluid 213 and is in full contact with damping fluid 213 during oscillation. Damping fluid 213 enhances energy dissipation and is more efficient than air damping. Multiple mass blocks 33 are arranged in a matrix or ring within the sealed box 212, with the distance between adjacent mass blocks 33 greater than the maximum oscillation amplitude to prevent collisions between adjacent mass blocks 33.

[0032] The winding core 40 vibrates and transmits the vibration through the clamping assembly 10 to the chain 31 on the top wall of the sealed box 212. The chain 31 then transmits the vibration to the mass block 33. The flexible connection of the chain 31 allows the mass block 33 to swing freely in three-dimensional space. The mass block 33 generates vibration damping on the winding core 40 through the combined action of its own inertial force and the resistance of the damping fluid 213, thus suppressing the vibration of the winding core 40.

[0033] When the winding core 40 vibrates, the mass block 33 oscillates within the damping fluid 213 due to its own inertia. The damping fluid 213, due to its viscosity, converts the mechanical energy of the oscillating mass block 33 into heat energy, thus dissipating the vibration energy of the winding core 40. The lifting ring 32 structure allows the chain 31 to oscillate at multiple angles, enhancing its adaptability to multi-directional vibration.

[0034] Please see Figure 4 The mass block 33 is provided with multiple through damping holes 34.

[0035] It should be noted that multiple damping holes 34 are disposed through the mass block 33, forming a multi-channel fluid damping structure. When the mass block 33 oscillates in the damping fluid 213, the damping fluid 213 is forced to form a jet through the damping holes 34, generating a turbulence effect within the holes.

[0036] The turbulence effect refers to the change in fluid motion from regular laminar flow to irregular turbulent flow when the damping fluid 213 passes through the damping orifice 34 of the mass block 33. In this flow, liquid molecules form a large number of randomly moving vortices, and the speed and direction of each particle change drastically, resulting in strong momentum exchange and internal friction within the fluid. Due to the abrupt change in cross-section, the high-speed jet within the damping orifice 34 forces liquid molecules to collide and tear each other, disrupting the originally orderly flow and thus greatly enhancing the energy dissipation capacity.

[0037] This effect enables the damping fluid 213 to convert more vibration kinetic energy into heat energy when flowing through the damping orifice 34, significantly improving the adaptability and damping effect of the vibration reduction system to vibrations of different amplitudes and frequencies.

[0038] Therefore, the damping orifice 34 enhances the friction between liquid molecules and the adhesion of the orifice wall, achieving efficient dissipation of vibrational energy. It provides linear damping for precise control during low-speed oscillation of the oscillating component 30, and generates stronger damping to suppress large-amplitude vibrations during high-speed oscillation.

[0039] Please see Figure 3 A heat dissipation interlayer 214 is formed between the outer shell 211 and the sealed box 212. Coolant is introduced into the heat dissipation interlayer 214 of both vibration damping boxes 21, and the two are connected by a heat dissipation pipe 215.

[0040] It should be noted that the outer shell 211 and the sealed box 212 are nested together, with a certain gap between them, thus forming a space for the heat dissipation interlayer 214. Coolant flow channels are provided at the corresponding heat dissipation interlayers 214 of the two vibration damping boxes 21, and the heat dissipation interlayers 214 of the two vibration damping boxes 21 are interconnected through heat dissipation pipes 215, forming a closed-loop channel for coolant circulation. This ensures the vibration damping working environment of the oscillating component 30 and the damping fluid 213 inside the sealed box 212, while also providing a path for heat transfer and dissipation.

[0041] When the transformer vibrates during operation, the oscillating component 30 inside the vibration damping box 21 generates heat through friction with the damping fluid 213. After the sealing box 212 absorbs the heat, the heat is conducted to the outer casing 211. At this time, the coolant in the heat dissipation jacket 214 absorbs the heat transferred from the sealing box 212 to the outer casing 211 as it flows near the sealing box 212, and its temperature rises.

[0042] Since the heat dissipation jackets 214 of the two vibration damping boxes 21 are connected by heat dissipation pipes 215, the heated coolant will flow to the heat dissipation jacket 214 of the other vibration damping box 21 under the action of circulation power. During the flow, it will gradually release heat due to the influence of the transformer's own ventilation and heat dissipation structure. After the temperature drops, it will flow back to the area that absorbs heat. This cycle repeats, continuously carrying away the heat generated by vibration.

[0043] The design of the heat dissipation jacket 214 and the coolant circulation system can actively remove the heat generated during vibration, preventing the damping fluid 213 from deteriorating or the material properties of the oscillating component 30 from changing due to heat accumulation, thus maintaining the stable operation of the vibration damping system. Through the circulation and heat dissipation of the coolant, the adverse effects of high temperatures on the device are effectively mitigated. Compared to the performance degradation of traditional vibration damping devices in high-temperature environments, this significantly improves the environmental adaptability and service life of the vibration energy dissipation device.

[0044] In addition, the circulation of coolant between the two damping boxes 21 can make the temperature of the two damping boxes 21 more consistent, ensuring the balance of the damping effect on both sides and enhancing the overall ability to suppress transformer vibration.

[0045] Please see Figure 1 and Figure 5 Each clamping assembly 10 includes a mounting frame 11 and two clamping plates 12; the mounting frame 11 is mounted on the winding core 40; the two clamping plates 12 are slidably mounted on the mounting frame 11 and located on opposite sides of the mounting frame 11, and the opposite sides of the two clamping plates 12 are respectively connected to one of the vibration damping boxes 21.

[0046] It should be noted that the clamping assembly 10 consists of a mounting frame 11 and two clamping plates 12. The mounting frame 11 is directly mounted and fixed on the winding core 40, serving as the basic support structure for the entire clamping assembly 10. The two clamping plates 12 are symmetrically distributed and slidably disposed on opposite sides of the mounting frame 11, allowing their positions to be adjusted along a specific direction on the mounting frame 11. The clamping plates 12 are connected to the vibration damping boxes 21, with each of the two clamping plates 12 having a corresponding vibration damping box 21 on its opposite side, thereby firmly connecting the vibration damping assembly 20 to the winding core 40, forming an integrated structure for the transmission and dissipation of vibration energy.

[0047] During installation, the mounting bracket 11 is first fixed onto the winding core 40. Then, according to actual needs, the positions of the two clamping plates 12 are slidably adjusted on the mounting bracket 11 to ensure they fit tightly against the winding core 40, thus completing the clamping and fixing of the winding core 40. When the winding core 40 vibrates, the vibration energy is transmitted through the mounting bracket 11 to the clamping plates 12, and then from the clamping plates 12 to the vibration damping box 21 connected thereto.

[0048] The oscillating component 30 inside the vibration damping box 21 absorbs and dissipates the transmitted vibration energy under the action of inertia and damping fluid 213. Meanwhile, the clamping plate 12 plays a stable vibration transmission role in this process, ensuring that the vibration energy can be efficiently transmitted to the vibration damping component 20, while limiting the vibration amplitude of the winding core 40 and maintaining its relative stability.

[0049] This clamping assembly 10 design, through the sliding clamping plate 12, enables the adaptable installation of winding cores 40 of different sizes, enhancing the versatility of the vibration energy dissipation device. The sliding connection between the clamping plate 12 and the mounting bracket 11 makes the installation process more convenient, achieving stable installation without complex customization operations. The connection structure between the clamping plate 12 and the vibration damping box 21 ensures efficient transmission of vibration energy, avoids energy loss, and improves the vibration damping effect.

[0050] Please see Figure 1 and Figure 5 Two grooves 13 are provided at intervals along the vertical direction on the clamping plate 12, and the vibration damping box 21 is located between the two grooves 13 and abuts against the inner wall of the grooves 13.

[0051] It should be noted that the clamping plate 12 has two spaced grooves 13 along the vertical direction. The grooves 13 have an inward concave structure, with their openings facing outwards from the clamping plate 12. The vibration damping box 21 is embedded between the two grooves 13, with its outer wall tightly abutting against the inner wall of the groove 13, forming a nested installation structure. The dimensions of the grooves 13 are adapted to the shape of the vibration damping box 21, and the vibration damping box 21 is fixed between the two grooves 13 by fasteners, ensuring that the vibration damping box 21 will not shake after installation. At the same time, the depth and width of the grooves 13 provide a precise positioning reference for the vibration damping box 21.

[0052] When the winding core 40 vibrates, the vibration energy is transmitted to the clamping plate 12 through the mounting bracket 11, and the clamping plate 12 transmits the vibration to the damping box 21. At this time, the inner wall of the groove 13 forms a limiting constraint on the damping box 21: the two grooves 13 are spaced vertically to limit the vertical displacement of the damping box 21 and prevent it from moving up and down due to vibration; the inner wall of the groove 13 abuts against the outer wall of the damping box 21, suppressing the horizontal swing amplitude of the damping box 21 and ensuring that the vibration energy is efficiently dissipated through the swinging component 30 and the damping fluid 213 inside the damping box 21. In addition, the abutting structure of the groove 13 evenly transmits the vibration reaction force of the damping box 21 to the clamping plate 12, avoiding local stress concentration and enhancing the stability of the overall structure.

[0053] The groove 13 provides a standardized mounting slot for the vibration damper box 21, which can be quickly installed without additional positioning devices, reducing assembly errors, and also facilitates the disassembly and replacement of the vibration damper box 21 during later maintenance.

[0054] Please see Figure 5 A first connecting ring 14 is provided at the bottom of the groove 13 below the clamping plate 12 located above the winding core 40, and a second connecting ring 15 is provided at the top of the groove 13 above the clamping plate 12 located below the winding core 40. The first connecting ring 14 and the second connecting ring 15 are fastened together by bolts 16.

[0055] It should be noted that a first connecting ring 14 is provided at the bottom of the clamping plate 12 above the winding core 40, that is, at the bottom surface of the groove 13 near the top of the winding core 40, and a second connecting ring 15 is provided at the top of the clamping plate 12 below, that is, at the top surface of the groove 13 near the bottom of the winding core 40. The two connecting rings are distributed coaxially at the top and bottom.

[0056] The first connecting ring 14 and the second connecting ring 15 are fastened together by bolts 16. The bolts 16 pass through the first connecting ring 14 of the upper clamping plate 12, extend downward to the second connecting ring 15 of the lower clamping plate 12, and are tightened with nuts, forming a rigid connection structure that runs through both ends of the winding core 40. The connecting rings are made of annular metal parts, welded to or integrally formed with the grooves 13 of the clamping plate 12 to ensure uniform load transmission.

[0057] When the bolt 16 is tightened, the upper and lower clamping plates 12 are axially pulled through the connecting ring, forming a clamping force on the winding core 40. The axial force generated by the tightening of the bolt 16 makes the upper and lower clamping plates 12 fit tightly against the end face of the winding core 40, and the vertical vibration of the winding core 40 is suppressed by friction.

[0058] When the winding core 40 vibrates, the vibration of the upper clamping plate 12 is transmitted to the bolt 16 through the first connecting ring 14, and then transmitted by the bolt 16 to the lower second connecting ring 15 and the clamping plate 12, making the entire clamping assembly 10 a rigid whole and preventing relative displacement between the vibration damping box 21 and the winding core 40. The preload of the bolt 16 can be adjusted according to the size of the winding core 40 or the vibration amplitude. By changing the clamping force, the overall rigidity of the system can be adjusted to meet the vibration damping requirements under different working conditions.

[0059] Please see Figure 5 The mounting bracket 11 has threaded rods 17 horizontally at both ends. The two ends of the two clamping plates 12 are respectively inserted through one of the threaded rods 17 and fastened with nuts.

[0060] It should be noted that threaded rods 17 extend horizontally from both ends of the mounting bracket 11. The threaded rods 17 are integrally formed or securely connected to the mounting bracket 11 to ensure structural strength. Two clamping plates 12 have through holes corresponding to the positions of the threaded rods 17, allowing the clamping plates 12 to slide freely along the threaded rods 17. The gap design between the through holes and the threaded rods 17 ensures smooth sliding of the clamping plates 12 while preventing wobbling. The clamping plates 12 are secured to the threaded rods 17 with nuts. When the nuts are tightened on the threaded rods 17, the clamping plates 12 are pressed and fixed, forming a clamping constraint on the winding core 40.

[0061] During installation, the mounting bracket 11 is first fixed to the winding core 40. Then, the two clamping plates 12 are passed through the threaded rods 17 at both ends. The position of the clamping plates 12 is adjusted by sliding according to the actual size of the winding core 40 so that the clamping plates 12 fit against the winding core 40. After the position of the clamping plates 12 is adjusted, the nuts are tightened. The thread engagement between the nuts and the threaded rods 17 generates axial tension, forcing the clamping plates 12 to move towards the winding core 40 and clamp them.

[0062] The tightness of the nut directly determines the clamping force of the clamping plate 12 on the winding core 40. By controlling the tightness of the nut, adaptive clamping can be achieved for winding cores 40 of different sizes and under different vibration conditions. When the winding core 40 vibrates, the clamping plate 12, connected to the mounting bracket 11 through the threaded rod 17, transmits the vibration to the vibration damping component 20. At the same time, the clamping force formed by the tightening of the nut ensures that the clamping plate 12 remains firmly attached to the winding core 40 during vibration, maintaining the effective transmission of vibration energy.

[0063] This invention also provides a tall structure transformer, including a vibration energy dissipation device.

[0064] It should be noted that the clamping assembly 10, through the combination of the threaded rod 17, the clamping plate 12 and the connecting ring, achieves flexible fastening and precise positioning of the winding core 40, and can be adapted to equipment of different specifications. When the transformer is working, the vibration of the winding core 40 is transmitted to the vibration damping box 21 through the clamping assembly 10. The swinging component 30 generates a reverse damping force by using inertia. The damping hole 34 and the damping fluid 213 work together to enhance energy dissipation. At the same time, the heat dissipation jacket 214 removes heat through the circulation of coolant, avoiding the impact of high temperature on the vibration damping performance.

[0065] Compared to traditional transformers, high-rise transformers equipped with vibration energy dissipation devices can solve the problems of fatigue failure of spring dampers and maintenance difficulties in high-altitude installation scenarios. Through multi-dimensional vibration reduction and modular structure, the reliability of equipment operation is greatly improved, downtime maintenance costs and safety hazards are reduced, and the stringent requirements of modern power grids for the stability and economy of high-altitude power equipment are met.

[0066] Compared with the prior art, the high-rise structure transformer provided by this invention is equipped with a vibration energy dissipation device with two clamping components 10 at the upper and lower ends of the winding core 40, which firmly clamps the winding core 40 and ensures structural stability. At the same time, through the inertial action of multiple suspended swinging parts 30 in the two vibration damping components 20, a reverse damping force is generated when the winding core 40 vibrates, avoiding the problem of fatigue failure of traditional spring dampers in high-frequency vibration and high-temperature environments. It effectively suppresses vibration caused by electromagnetic force and magnetostriction effect, reduces the risk of structural fatigue and insulation aging, improves the reliability and safety of the high-rise structure transformer in complex high-altitude environments, and reduces high-altitude maintenance costs and downtime losses.

[0067] Tall transformer structures equipped with vibration energy dissipation devices exhibit unique advantages in resisting wind-induced vibrations and earthquakes. The oscillating component 30, in conjunction with the damping fluid 213 and damping orifice 34, functions effectively under vibrations of different frequencies. When facing wind-induced vibrations, the high-frequency, low-amplitude vibration characteristics cause turbulence to form in the damping fluid 213 within the damping orifice 34, enhancing energy dissipation and rapidly suppressing vibrations. When an earthquake occurs, with its low-frequency, high-amplitude vibrations, the inertia of the mass block 33 and the viscous resistance of the damping fluid 213 work together to effectively reduce the energy transmitted by seismic waves, minimizing structural damage to the transformer.

[0068] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A vibration energy dissipation device, characterized in that, include: Two clamping assemblies are located at the upper and lower ends of the winding core, respectively, and are used to cooperate with each other to clamp the winding core. Two vibration damping components are respectively connected to one of the clamping components, and each vibration damping component has multiple suspended swing elements; When the winding core vibrates, each of the oscillating components uses its own inertia to generate a reverse damping force on the winding core.

2. The vibration energy dissipation device as described in claim 1, characterized in that, Each of the vibration damping components includes two vibration damping boxes, which are located on opposite sides of the winding core. Each vibration damping box includes: The outer casing is connected to the clamping assembly; A sealed box is located inside the outer shell, with multiple swinging components suspended from the top wall, and the sealed box is filled with damping fluid.

3. The vibration energy dissipation device as described in claim 2, characterized in that, Each of the aforementioned swinging components includes: The chain has a lifting ring at one end and is connected to the top wall of the sealed box. A mass block is located at the other end of the chain and immersed in the damping fluid.

4. The vibration energy dissipation device as described in claim 3, characterized in that, The mass block has multiple through damping holes.

5. The vibration energy dissipation device as described in claim 2, characterized in that, A heat dissipation interlayer is formed between the outer shell and the sealed box. Coolant is circulated in the heat dissipation interlayer of both vibration damping boxes, and the two are connected by a heat dissipation pipe.

6. The vibration energy dissipation device as described in claim 2, characterized in that, Each of the clamping components includes: Mounting bracket, provided on the winding core; Two clamping plates are slidably mounted on the mounting frame and located on opposite sides of the mounting frame. The opposite sides of the two clamping plates are respectively connected to one of the vibration damping boxes.

7. The vibration energy dissipation device as described in claim 6, characterized in that, The clamp plate has two grooves spaced apart along the vertical direction, and the vibration damping box is located between the two grooves and abuts against the inner wall of the groove.

8. The vibration energy dissipation device as described in claim 7, characterized in that, A first connecting ring is provided at the bottom of the groove below the clamping plate located above the winding core, and a second connecting ring is provided at the top of the groove above the clamping plate located below the winding core. The first connecting ring and the second connecting ring are fastened together by bolts.

9. The vibration energy dissipation device as described in claim 6, characterized in that, Both ends of the mounting bracket are provided with threaded rods horizontally, and the two ends of the two clamps are respectively inserted through one of the threaded rods and fastened with nuts.

10. A tall structure transformer, including the vibration energy dissipation device as described in any one of claims 1-9.

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