Earthquake-proof and flood-proof dry-type transformer

Abstract

The invention relates to the technical field of dry-type transformers, in particular to an anti-seismic flood-prevention dry-type transformer which comprises a transformer body and further comprises a damping support, an outer box and an inner box, the damping support comprises a supporting frame, a fixing assembly and a damping assembly, and the supporting frame is fixedly arranged in the outer box and located on the outer side of the inner box; the inner box body is fixedly arranged on the fixing assembly through the damping assembly, and the transformer body is fixedly arranged in the inner box body. According to the anti-seismic and anti-flood dry-type transformer, the supporting frame, the fixing assembly and the damping assembly on the damping support protect the inner box body and the transformer body, structural damage to the transformer body during an earthquake is reduced, and meanwhile the transformer body can be prevented from being eroded by flood through the double-layer arrangement of the outer box body and the inner box body; the external environment is effectively isolated, and long-term stable operation is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of dry-type transformers, and in particular to an earthquake-resistant and flood-proof dry-type transformer. Background Art

[0002] Traditional dry-type transformers often face structural damage, electrical failures, and malfunction in extreme environments such as earthquakes, heavy rain, and flooding, impacting the reliability and stability of power distribution systems. While existing earthquake-resistant dry-type transformers offer improved earthquake resistance, they lack effective protection against natural disasters like flooding. They are susceptible to water intrusion and damage during these events, impacting the stable operation of power distribution systems. Therefore, developing earthquake-resistant dry-type transformers with enhanced flood resistance is crucial for improving the reliability and stability of power distribution systems. Summary of the Invention

[0003] In order to solve the technical problem that existing earthquake-proof dry-type transformers are insufficient in flood prevention, the present invention provides an earthquake-resistant and flood-proof dry-type transformer. The support frame, fixing assembly and shock-absorbing assembly on the shock-absorbing bracket of the transformer protect the inner box and the transformer body, reducing structural damage to the transformer body during an earthquake. At the same time, the double-layer arrangement of the outer box and the inner box can prevent floods from eroding the transformer body, and effectively isolate it from the external environment, ensuring its long-term stable operation.

[0004] The present invention provides an earthquake-resistant and flood-proof dry-type transformer, comprising a transformer body, a shock-absorbing bracket, an outer box, and an inner box. The shock-absorbing bracket comprises a support frame, a fixing assembly, and a shock-absorbing assembly. The support frame is fixedly disposed within the outer box and located outside the inner box. The fixing assembly and the shock-absorbing assembly are fixedly disposed on the support frame. The inner box is fixedly disposed on the fixing assembly via the shock-absorbing assembly. The transformer body is fixedly disposed within the inner box. The shock-absorbing bracket is fixed within the outer box via the support frame. The inner box is fixedly disposed on the fixing assembly, and the shock-absorbing assembly confines the inner box between the inner box and the fixing assembly. The inner box is fixed to the shock-absorbing bracket, and the transformer body is then fixedly disposed within the inner box.

[0005] Furthermore, the support frame includes a support plate fixedly arranged on the inner bottom wall of the outer box body and a frame structure fixedly arranged on the support plate, the fixing component is fixedly arranged on the support plate, and the shock absorbing component is fixedly arranged on the frame structure.

[0006] Furthermore, the fixing assembly includes a first trough body and a second trough body, and the shock-absorbing assembly includes a rubber pad, a plurality of shock-absorbing springs, a bellows and a damper. The first trough body is fixedly arranged on the support plate, and the plurality of shock-absorbing springs are evenly arranged above the bottom of the first trough body. The second trough body is located inside the first trough body and the bottom of the second trough body is in contact with the shock-absorbing spring. The rubber pad is fixedly arranged on the inner wall of the second trough body, the bottom of the inner box body is fixedly arranged inside the second trough body and the inner box body is in contact with the rubber pad, the plurality of bellows are evenly arranged between the top of the inner box body and the frame structure, and the plurality of dampers are evenly arranged between the side of the first trough body and the frame structure and between the side of the inner box body and the frame structure.

[0007] Furthermore, the frame structure includes a plurality of first columns, a first cross beam and a second cross beam, a plurality of the first columns are evenly arranged on the support plate, a plurality of the first cross beams and the second cross beams are fixedly connected and arranged in a crisscross pattern, both ends of the first cross beam and the second cross beam are fixedly connected to the top of the first column, and the first cross beam and the second cross beam are located at the top of the inner box body; a plurality of the corrugated tubes are evenly arranged between the top of the inner box body and the first cross beam, and a plurality of the dampers are evenly arranged between the side of the first trough body and the first column and between the side of the inner box body and the first column.

[0008] Furthermore, a first fan is fixedly mounted on the first column, a second fan is fixedly mounted on the transformer body, a first heat dissipation window is fixedly mounted on the inner box, and a waterproof breathable membrane is provided on the first heat dissipation window, with air outlets of the first and second fans both facing the first heat dissipation window. When the temperature of the transformer body is too high, the first and second fans are activated to circulate air in the inner and outer boxes, thereby cooling and dissipating the heat of the transformer body.

[0009] Furthermore, the outer box is fixedly provided with a second heat dissipation window and a waterproof rubber pad, with the waterproof rubber pad located outside the second heat dissipation window. The second heat dissipation window is arranged corresponding to the first heat dissipation window, and a sealing window panel is movably provided on the exterior of the outer box, covering the second heat dissipation window and contacting the waterproof rubber pad. Under normal weather conditions, when the temperature of the transformer body becomes too high, the first and second fans are activated, and the sealing window panel opens, allowing air to flow through the inner box, the outer box, and the outside, thereby cooling and dissipating heat from the transformer body.

[0010] Furthermore, a corresponding slide groove is fixedly provided on the outer box body, a slider is slidably provided inside the slide groove, and pressure sensors are fixedly provided on the top and bottom of the slider, a limit block is fixedly provided on the top of the slide groove, and a telescopic frame is fixedly provided on the sealing window panel, and the telescopic frame passes through the outer box body and is fixedly connected to the slider and the limit block respectively.

[0011] Furthermore, a first sensor is fixedly installed on the top and bottom of the outer wall of the outer box door, a drainage hole is provided at the bottom of the outer box door and a drainage solenoid valve is fixedly installed at the drainage hole, and a second sensor is fixedly installed on the inner bottom wall of the outer box body near the drainage hole.

[0012] Furthermore, the outer box and the inner box are made of composite materials, the outer box includes a first insulating layer, an alloy layer and a first waterproof layer integrally formed from the inside to the outside, and the inner box includes a second insulating layer, a carbon fiber material layer and a second waterproof layer integrally formed from the inside to the outside.

[0013] Furthermore, it also includes a protection component, which includes a base plate, an air cushion and an air pump. A plurality of support columns are evenly fixed on the base plate, the outer box is placed on the plurality of support columns, the air cushion is placed on the base plate and the air cushion is located between the outer box and the base plate, the air pump is fixed on the outer box, and the air pump is fixedly connected and communicated with the air cushion through an air pipe; a third sensor is fixedly installed on each of the support columns. After the third sensor detects water, the sealing window panel is closed, and the air pump delivers gas to the air cushion through the air pipe. The air cushion opens, causing the entire earthquake-resistant and flood-proof dry-type transformer to float. The air cushion enables the earthquake-resistant and flood-proof dry-type transformer to automatically float in flood disasters, avoiding direct immersion in water, further enhancing the waterproof ability of the earthquake-resistant and flood-proof dry-type transformer, and preventing it from being eroded by accumulated water on the ground.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The present invention provides an earthquake-resistant and flood-proof dry-type transformer, in which the support frame, fixing assembly and shock-absorbing assembly on the shock-absorbing bracket of the transformer protect the inner box and the transformer body, reducing structural damage to the transformer body during an earthquake. At the same time, the double-layer arrangement of the outer box and the inner box can prevent floods from eroding the transformer body, and effectively isolate the external environment to ensure its long-term stable operation. The earthquake-resistant and flood-proof dry-type transformer achieves high stability and reliability in natural disasters such as earthquakes, rainstorms and floods, and has strong environmental adaptability and survivability, thereby improving the safety and reliability of power distribution facilities. The shock-absorbing bracket, outer box, inner box and transformer body can be disassembled and assembled independently, which is convenient for rapid maintenance and component replacement, reducing downtime and maintenance costs caused by equipment damage, thereby improving overall operating efficiency and economy. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic structural diagram of an earthquake-resistant and flood-proof dry-type transformer according to the first embodiment of the present invention;

[0017] Figure 2 This is a schematic structural diagram of an inner box body fixed on a shock-absorbing bracket according to a first embodiment of the present invention;

[0018] Figure 3 1 is a schematic cross-sectional view of the inner box body according to the first embodiment of the present invention;

[0019] Figure 4 1 is a schematic side structural diagram of a transformer body according to a first embodiment of the present invention;

[0020] Figure 5 This is a schematic structural diagram of the outer box of the first embodiment of the present invention;

[0021] Figure 6 1 is a schematic cross-sectional structural diagram of a chute according to a first embodiment of the present invention;

[0022] Figure 7 This is a schematic structural diagram of the sealed window panel when closed according to the first embodiment of the present invention;

[0023] Figure 8 1 is a schematic diagram of a top view of the raised platform according to the first embodiment of the present invention;

[0024] Figure 9 This is a schematic structural diagram of an earthquake-resistant and flood-proof dry-type transformer according to a second embodiment of the present invention;

[0025] Figure 10 Schematic diagram of the structure of the support column of the second embodiment of the present invention;

[0026] Figure 11 is a schematic structural diagram of a third sensor according to the second embodiment of the present invention;

[0027] The reference numerals in the accompanying drawings are:

[0028] 1. Transformer body; 11. Temperature sensor; 12. Acceleration sensor;

[0029] 2. Inner box body; 21. First heat dissipation window; 22. Inner box door;

[0030] 3. Shock-absorbing bracket; 31. Support frame; 311. Support plate; 312. First crossbeam; 313. Second crossbeam; 314. First column; 315. Second elastic steel block; 316. Fixing plate; 317. Fan mounting plate; 318. First elastic steel block; 32. First tank; 33. Second tank; 34. Shock-absorbing spring; 35. Rubber pad; 36. Bellows; 37. Damper;

[0031] 4. Outer box; 41. Second heat dissipation window; 411. Waterproof rubber pad; 42. Outer box door; 43. Sealing window panel; 44. Slide; 441. Slider; 442. Pressure sensor; 443. Stop block; 444. Support; 45. Telescopic bracket; 46. First sensor; 47. Drain hole; 48. Second sensor; 49. Raised platform;

[0032] 5. First fan;

[0033] 6. Second fan;

[0034] 7. Protective assembly; 71. Bottom plate; 72. Air cushion; 73. Air pump; 74. Support column; 75. Air pipe; 76. Third sensor; 77. Rain shelter;

[0035] 8. Telescopic cylinder; 9. Air supply pump. DETAILED DESCRIPTION

[0036] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0037] Example 1, as Figures 1 to 8 As shown, an earthquake-resistant and flood-proof dry-type transformer includes a transformer body 1. The transformer body 1 can adopt models SCB13 / SCB14 and SCBH15. It also includes a shock-absorbing bracket 3, an outer box body 4 with a rotatable outer box door 42, and an inner box body 2 with a rotatable inner box door 22. The outer box body 4 and the rear side of the inner box body 2 are provided with a wire inlet for allowing the wiring harness of the transformer body 1 and the wiring harness of other components to pass through. The wire inlet is waterproof and sealed. The shock-absorbing bracket 3 includes a support frame 31, a fixing assembly and a shock-absorbing assembly. The support frame 31 is fixedly arranged inside the outer box body 4 and located outside the inner box body 2. The fixing assembly and the shock-absorbing assembly are fixedly arranged on the support frame 31. The inner box body 2 is fixedly arranged on the fixing assembly through the shock-absorbing assembly. The transformer body 1 is fixedly arranged inside the inner box body 2.

[0038] The earthquake-resistant and flood-proof dry-type transformer of this embodiment can be used indoors (e.g., in a basement) or outdoors (e.g., on a rooftop). The assembly process of the earthquake-resistant and flood-proof dry-type transformer is as follows: the shock-absorbing bracket 3 is fixed to the interior of the outer box 4 via the support frame 31. The inner box 2 is fixed to the fixing assembly via the shock-absorbing assembly. The inner box 2 is fixed to the shock-absorbing bracket 3. The transformer body 1 is then fixed to the interior of the inner box 2. The outer box 4, inner box 2, and shock-absorbing bracket 3 facilitate assembly and disassembly, thereby improving subsequent maintenance efficiency and reducing replacement costs.

[0039] The arrangement of the outer box door 42 and the inner box door 22 facilitates the assembly and maintenance of the earthquake-resistant and flood-proof dry-type transformer. When the earthquake-resistant and flood-proof dry-type transformer is in use, the outer box door 42 and the inner box door 22 are usually in a closed state. When the earthquake-resistant and flood-proof dry-type transformer is being maintained, the outer box door 42 and the inner box door 22 are usually in an open state.

[0040] The earthquake-resistant and flood-proof dry-type transformer of this embodiment has a support frame 31, a fixing assembly, and a shock-absorbing assembly on the shock-absorbing bracket 3 of the transformer to protect the inner box 2 and the transformer body 1, reducing structural damage to the transformer body 1 during an earthquake. At the same time, the double-layer setting of the outer box 4 and the inner box 2 can prevent floods from eroding the transformer body 1, and effectively isolate the external environment to ensure its long-term stable operation. The earthquake-resistant and flood-proof dry-type transformer achieves high stability and reliability in natural disasters such as earthquakes, rainstorms and floods, and has strong environmental adaptability and survivability, thereby improving the safety and reliability of power distribution facilities. The shock-absorbing bracket 3, the outer box 4, the inner box 2, and the transformer body 1 can be independently disassembled and assembled, facilitating rapid maintenance and component replacement, reducing downtime and maintenance costs caused by equipment damage, and thereby improving overall operating efficiency and economy.

[0041] As an implementation method, the support frame 31 includes a support plate 311 fixedly set on the inner bottom wall of the outer box body 4 and a frame structure fixedly set on the support plate 311, the fixing component is fixedly set on the support plate 311, and the shock absorbing component is fixedly set on the frame structure.

[0042] As an implementable embodiment, the fixing assembly includes a first trough body 32 and a second trough body 33, the cross-section of the first trough body 32 and the second trough body 33 is U-shaped, the shock-absorbing assembly includes a rubber pad 35, a plurality of shock-absorbing springs 34, a bellows 36 and a damper 37, the first trough body 32 is fixedly set on the support plate 311, the plurality of shock-absorbing springs 34 are evenly arranged above the bottom of the first trough body 32, the second trough body 33 is located inside the first trough body 32 and the bottom of the second trough body 33 is in contact with the shock-absorbing spring 34; the rubber pad 35 is fixedly set on the inner wall of the second trough body 33, the bottom of the inner box body 2 is located inside the second trough body 33 and the inner box body 2 is in contact with the rubber pad 35, the plurality of bellows 36 are evenly arranged between the top of the inner box body 2 and the frame structure, and the plurality of dampers 37 are evenly arranged between the side of the first trough body 32 and the frame structure and between the side of the inner box body 2 and the frame structure. The first and second slots 32 and 33 support the inner box 2, while the shock-absorbing springs 34 and rubber pads 35 provide shock absorption for the inner box 2 and the transformer body 1. The bellows 36 and damper 37 also provide shock absorption for the inner box 2 and the transformer body 1, while also restraining them. The shock-absorbing springs 34, rubber pads 35, bellows 36, and damper 37 reduce the impact of seismic waves on the internal structure of the transformer body 1, preventing deformation caused by direct force during an earthquake.

[0043] By adopting a support frame 31 with a bionic design (imitating the node structure of bamboo), the support frame 31 can effectively absorb vibration energy during an earthquake through slight deformation of the frame structure and shock-absorbing measures (shock-absorbing spring 34, bellows 36, damper 37 and rubber pad 35), thereby reducing structural damage to the transformer body 1 and significantly improving the seismic performance of the earthquake-resistant and flood-proof dry-type transformer, making the use of earthquake-resistant and flood-proof dry-type transformers in earthquake-prone areas safer and more reliable.

[0044] In one embodiment, the frame structure includes a plurality of first columns 314, a support plate 311, a plurality of first crossbeams 312, and a plurality of second crossbeams 313. The plurality of first columns 314 are evenly arranged on the support plate 311. The plurality of first crossbeams 312 and second crossbeams 313 are fixedly connected and arranged in a crisscross pattern. Both ends of the first crossbeams 312 and second crossbeams 313 are fixedly connected to the tops of the first columns 314. The first crossbeams 312 and second crossbeams 313 are located at the top of the inner box 2. The plurality of bellows 36 are evenly arranged between the top of the inner box 2 and the first crossbeams 312. The plurality of dampers 37 are evenly arranged between the side surfaces of the first trough 32 and the first columns 314, and between the side surfaces of the inner box 2 and the first columns 314. The support plate 311, the plurality of first crossbeams 312 and second crossbeams 313, and the first columns 314 are all made of stainless steel, which has the advantage of high strength.

[0045] Preferably, a fixing plate 316 is fixedly installed at each of the joints where the first crossbeams 312 and the second crossbeams 313 are fixedly connected. The first crossbeams 312, the second crossbeams 313, and the fixing plate 316 are fixedly connected by high-strength bolts and high-strength nuts, and the fixing plate 316 is located below the first crossbeam 312. The bellows 36 are respectively fixedly installed on the fixing plates 316, and the bottoms of the bellows 36 are fixedly connected to the top of the inner box 2. The bellows 36 are fixed between the fixing plates 316 and the top of the inner box 2 by high-strength bolts and high-strength nuts. The dampers 37 are evenly fixedly installed on the first columns 314, and the ends of the dampers 37 are respectively in contact with the side surfaces of the inner box 2 and the side surfaces of the first trough 32.

[0046] Preferably, the first columns 314 are provided with positioning grooves along their height direction, and multiple first elastic steel blocks 318 (welded and fixed) are evenly arranged around the support plate 311. The first elastic steel blocks 318 are rectangular blocks, and each of the first elastic steel blocks 318 is stuck in the bottom of the positioning groove (the first elastic steel block 318 is fixedly connected to the first column 314 by high-strength bolts and high-strength nuts). Second elastic steel blocks 315 are provided at both ends of multiple first beams 312 and second beams 313 (the second elastic steel blocks 315 are fixedly connected to the first column 314 by high-strength bolts and high-strength nuts). The second elastic steel blocks 315 are U-shaped blocks, and each of the second elastic steel blocks 315 is stuck in the top of the positioning groove.

[0047] As one possible implementation, a first fan 5 is fixedly mounted on the first column 314. Specifically, multiple fan mounting plates 317 are evenly fixed between two adjacent first columns 314. The fan mounting plates 317 are fixedly connected to the two adjacent first columns 314 via high-strength bolts and high-strength nuts. A first fan 5 is fixedly mounted on each fan mounting plate 317. A second fan 6 is fixedly mounted on the transformer body 1. Multiple first and second fans 5 and 6 can be provided. The second fan 6 can be fixed between the two windings of the transformer body 1 via high-strength bolts and high-strength nuts. A first heat dissipation window 21 is fixedly mounted in the middle of the side wall of the inner box 2. Multiple dampers 37 are evenly located on both sides of the first heat dissipation window 21 to ensure that the dampers 37 do not slide onto the first heat dissipation window 21 during earthquake resistance. The air outlets of the first and second fans 5 and 6 are both oriented toward the first heat dissipation window 21, which is provided with a waterproof and breathable membrane. The waterproof, breathable membrane is installed using an external heat sealer to heat and fuse the membrane to the edge of the window frame of the first heat dissipation window 21. The purpose of the membrane is to balance the air pressure within the inner and outer boxes 4 and the inner box 2. The structures of the first and second fans 5, 6 are conventional and will not be further described here. When the temperature of the transformer body 1 becomes too high, the first and second fans 5, 6 are activated to circulate air within the inner and outer boxes 2, 4, and thereby cool and dissipate heat within the transformer body 1.

[0048] Preferably, the structure of the transformer main body 1 is prior art and will not be further described here. The transformer main body 1 generally includes a multi-core module, a high-voltage coil module (high-voltage coil winding), a low-voltage coil module (low-voltage coil winding), etc.; wherein each module is independent of each other, and each module is provided with standardized interfaces and connectors. When the transformer main body 1 needs to be repaired or replaced, the shock-absorbing bracket 3 can be easily disassembled, and then the faulty module of the transformer main body 1 can be removed and the corresponding new module can be installed. The assembled modular design of the transformer main body 1 simplifies the maintenance process, thereby reducing the replacement cost of the transformer main body 1.

[0049] The transformer body 1 is also fixedly mounted with a temperature sensor 11 (primarily detecting the temperature of the core and coils) and two acceleration sensors 12 (primarily detecting acceleration at the top and bottom of the transformer body 1). When the acceleration sensors 12 detect an acceleration exceeding the safety threshold of the transformer body 1 (when the acceleration sensors 12 detect a horizontal acceleration of 5g or a vertical acceleration of 4g), the central processing unit controls the transformer body 1 to stop operation to prevent electrical damage. At the same time, the central processing unit sends an earthquake warning signal to an external control center. When the temperature sensor 11 detects a temperature increase, the first fan 5 and the second fan 6 start to dissipate heat from the transformer body 1; when the temperature sensor 11 detects that the temperature of the transformer body 1 exceeds 40 degrees Celsius, the first fan 5 and the second fan 6 start working, and the rotation speeds of the first fan 5 and the second fan 6 gradually increase with the increase in temperature. When the temperature of the transformer body 1 stabilizes at 80 degrees Celsius, the rotation speeds of the first fan 5 and the second fan 6 reach the maximum. When the temperature exceeds 105 degrees Celsius, the central processing unit controls the transformer body 1 to stop working to prevent the transformer body 1 from being damaged in a high temperature environment. At the same time, the central processing unit will send an earthquake early warning signal to an external control center.

[0050] As an embodiment, a second heat dissipation window 41 and a waterproof rubber pad 411 are fixedly provided on the outer box 4, and the waterproof rubber pad 411 is located on the outside of the second heat dissipation window 41. The second heat dissipation window 41 is a louver-style window, and the waterproof rubber pad 411 is fixed to the outer wall of the outer box 4 with high-performance glue. The second heat dissipation window 41 is provided corresponding to the first heat dissipation window 21. A sealing window panel 43 is movably provided on the outside of the outer box 4, and the sealing window panel 43 covers the second heat dissipation window 41 and contacts the waterproof rubber pad 411. Preferably, two first heat dissipation windows 21 and two second heat dissipation windows 41 are provided, and the two first heat dissipation windows 21 are located on the corresponding side walls of the inner box 2, and the two second heat dissipation windows 41 are located on the corresponding side walls of the outer box 4.

[0051] Under normal weather conditions, when the temperature of the transformer body 1 is too high, the first fan 5 and the second fan 6 are started, and the sealing window plate 43 is opened to allow the air in the inner box 2, the outer box 4 and the outside to flow, thereby cooling and dissipating the heat of the transformer body 1.

[0052] During natural disasters such as heavy rain and flooding, the sealing window panel 43 is closed, preventing floodwater from entering the outer case 4 through the second heat dissipation window 41, and further from entering the inner case 2 and the transformer body 1, thus preventing floodwater from corroding the transformer body 1. When the sealing window panel 43 is closed, it contacts the waterproof rubber gasket 411, which improves waterproof performance. Furthermore, the sealing window panel 43 is provided with a waterproof coating, which further enhances its waterproof performance.

[0053] As an implementable embodiment, a slide groove is fixedly provided inside the outer box body 4, a slider 441 is slidingly provided inside the slide groove 44, and pressure sensors 442 are fixedly provided on the top and bottom of the slider 441, a limit block 443 is fixedly provided on the top of the slide groove 44, a telescopic frame 45 is fixedly provided on the sealing window panel 43, a through hole is provided on the outer box body 4, and the telescopic frame 45 is fixedly connected to the slider 441 and the limit block 443 after passing through the through hole.

[0054] The structure of telescopic frame 45 is conventional and will not be further described here. Telescopic frame 45 comprises multiple hingedly connected groups of articulated portions, each comprising a first V-shaped link and a second V-shaped link, each symmetrically arranged and articulated. The first and second V-shaped links form a diamond shape. The first V-shaped link comprises a first and second articulated sub-link. The second V-shaped link has the same structure as the first V-shaped link, with the first sub-link of the first V-shaped link articulated to the first sub-link of the second V-shaped link, and the second sub-link of the first V-shaped link articulated to the second sub-link of the second V-shaped link.

[0055] The slider 441 slides upward in the slide groove 44, and the lower part of the telescopic frame 45 moves upward relative to the upper part of the telescopic frame 45. After the pressure sensor 442 on the top contacts the limit block 443, the slider 441 stops sliding upward, and the telescopic frame 45 extends outward. After the telescopic frame 45 extends, it drives the sealing window panel 43 away from the second heat dissipation window 41, and the sealing window panel 43 is opened.

[0056] On the contrary, the slider 441 slides downward in the slide groove 44, and the lower part of the telescopic frame 45 moves downward relative to the upper part of the telescopic frame 45. After the pressure sensor 442 at the bottom contacts the bottom of the slide groove 44, the slider 441 no longer slides downward, and the telescopic frame 45 contracts inward. After the telescopic frame 45 contracts, it drives the sealing window panel 43 to approach the second heat dissipation window 41, and the sealing window panel 43 is closed.

[0057] Preferably, a support 444 is provided on the inner wall of the outer box 4 and is located below the chute 44. A telescopic cylinder 8 and an air supply pump 9 are provided on the support 444. The telescopic cylinder 8 and the air supply pump 9 are pneumatically connected. The central processing unit controls the opening and closing of the air supply pump 9 and the telescopic cylinder 8, thereby extending and retracting the telescopic rod of the telescopic cylinder 8. The telescopic rod of the telescopic cylinder 8 passes through the support 444, the chute 44, and is fixedly connected to the slider 441. When the telescopic cylinder 8 is activated, it drives the slider 441 to slide up and down in the chute 44.

[0058] As an implementable embodiment, a first sensor 46 is fixedly installed on the top and bottom of the outer wall of the outer box door 42, a drainage hole 47 is provided at the bottom of the outer box door 42 and a drainage solenoid valve is fixedly installed at the drainage hole 47, and a second sensor 48 is fixedly installed on the inner bottom wall of the outer box body 4, and the second sensor 48 is close to the drainage hole 47.

[0059] Earthquake-resistant and flood-resistant dry-type transformers are used outdoors, primarily powered by a top-mounted first sensor 46. When the sensor detects rain, it transmits this signal to the central processing unit (CPU). Based on the data from the sensor, the CPU determines whether to activate the self-protection mechanism, which involves closing the sealing window 43. Simultaneously, the CPU sends a flood warning signal to an external control center. If the sensor 46 remains clear of water for more than an hour, the sealing window 43 reopens, ensuring proper cooling and heat dissipation of the transformer body 1.

[0060] When an earthquake-resistant and flood-proof dry-type transformer is used indoors, it is primarily operated by the first sensor 46 at the bottom. When the first sensor 46 at the bottom detects water accumulation indoors, it transmits this signal to the central processing unit. The central processing unit then determines whether to activate the self-protection mechanism based on the data from the first sensor 46, i.e., whether to close the sealing window panel 43. Simultaneously, the central processing unit sends a flood warning signal to an external control center. If the first sensor 46 at the bottom remains submerged in water for half an hour, the central processing unit sends a flood warning signal to the control center, notifying the control center to conduct analysis and testing. If the transformer body 1 remains submerged in water for half an hour after the flood warning signal is sent, and the control center does not send any instructions, the central processing unit controls the transformer body 1 to stop operating and sends a stop signal to the control center.

[0061] Regardless of whether the earthquake-resistant and flood-proof dry-type transformer is used outdoors or indoors, the second sensor 48 monitors the water ingress of the outer box door 42. If the second sensor 48 does not detect water ingress into the outer box door 42, the drain solenoid valve is closed. On the contrary, if the second sensor 48 detects water ingress into the outer box door 42, the drain solenoid valve is opened to drain water after the outdoor or indoor flood subsides.

[0062] Preferably, a raised platform 49 is fixedly provided at the center of the inner bottom wall of the outer box body 4, and the support plate 311 is fixedly provided on the raised platform 49. The height of the horizontal plane at the center of the inner bottom wall of the outer box body 4 is greater than the height of the horizontal plane at the edge of the inner bottom wall of the outer box body 4. A 2% slope is provided between the center of the inner bottom wall of the outer box body 4 and the edge of the inner bottom wall of the outer box body 4, that is, a 2% slope is provided at all positions of the inner bottom wall of the outer box body 4 except for the raised platform 49. The raised platform 49 elevates the position of the inner box body 2 and the transformer body 1. When water enters the interior of the outer box door 42, the slope minimizes the possibility of water entering the inner box body 2 and the transformer body 1, while also allowing the water inside the outer box door 42 to be drained out as quickly as possible.

[0063] Among them, the drainage hole 47 at the bottom of the outer box door 42 is located at the edge of the inner bottom wall of the outer box body 4, that is, the drainage hole 47 is at the lowest point of the slope. When the second sensor 48 detects that water has entered the inner part of the outer box door 42, after the outdoor or indoor flood subsides, the drainage solenoid valve opens, and the water can flow along the slope to the drainage hole 47 and be discharged from the drainage solenoid valve.

[0064] In one embodiment, the outer housing 4 and inner housing 2 are made of composite materials. The outer housing 4 includes a first insulating layer, an alloy layer, and a first waterproof layer integrally formed from the inside out. The alloy layer is an aluminum alloy layer. The inner housing 2 includes a second insulating layer, a carbon fiber material layer, and a second waterproof layer integrally formed from the inside out. The first and second insulating layers may be epoxy resin or glass fiber composite materials; the first and second waterproof layers may be EPDM rubber or polytetrafluoroethylene film.

[0065] Specifically, the outer box 4 is made of a composite material, with a first insulating layer, an aluminum alloy layer, and a first waterproof layer formed by hot pressing. A hinged outer door 42 is provided on the front of the outer box 4, facilitating assembly and maintenance. A first waterproof sealing ring is provided on the outer wall of the outer box 4 at a position corresponding to the outer door 42, which contacts the first waterproof sealing ring when closed.

[0066] Specifically, the inner box 2 is made of composite material, with a second insulating layer, a carbon fiber layer, and a second waterproof layer formed by hot pressing. A hinged inner door 22 is provided on the front of the inner box 2, facilitating assembly and maintenance. A second waterproof sealing ring is provided on the outer wall of the inner box 2 at a position corresponding to the inner door 22, which contacts the second waterproof sealing ring when closed.

[0067] Furthermore, a desiccant may be installed on the inside of the outer door 42 and the inner door 22 , and the desiccant may be replaced after each maintenance, thereby further placing the transformer body 1 in a dry environment.

[0068] The outer box 4 and the inner box 2 have the advantages of high sealing and durability. The outer box 4 and the inner box 2 adopt multi-layer composite materials and a moisture-absorbing desiccant to ensure that the interior of the earthquake-resistant and flood-proof dry-type transformer is dry, effectively preventing the electrical performance degradation and safety hazards caused by water ingress into the earthquake-resistant and flood-proof dry-type transformer.

[0069] Example 2, as Figures 9-11 As shown, an earthquake-resistant and flood-proof dry-type transformer, different from the embodiment 1, further includes a protection component 7, the protection component 7 includes a base plate 71, an air cushion 72 and an air pump 73, the air cushion 72 is a rubber air cushion, a plurality of support columns 74 are evenly fixedly arranged on the base plate 71, the outer box body 4 is placed on the plurality of support columns 74, the air cushion 72 is placed on the base plate 71 and the air cushion 72 is located between the outer box body 4 and the base plate 71, the air pump 73 is fixedly arranged on the outer box body 4, and the air pump 73 is fixedly connected to and communicated with the air cushion 72 through an air pipe 75; each of the support columns 74 is provided with an embedded groove and a third sensor 76 is fixedly arranged in the embedded groove. Preferably, the air cushion 72 is provided with a plurality of notches, the same number as the support columns 74 , the air cushion 72 is placed on the base plate 71 and each support column 74 passes through the notches, the air cushion 72 is placed on the base plate 71 and each support column 74 passes through the notches, the notches avoid the support columns 74 , and the support columns 74 simultaneously limit the air cushion 72 .

[0070] Whether the earthquake-resistant and flood-proof dry-type transformer is used outdoors or indoors, when water accumulates on the ground for a certain period of time or during a short period of heavy rain, the third sensor 76 detects water, closes the sealing window panel 43, and the central processing unit controls the start of the air pump 73 and sends an alert to the control center. The air pump 73 then delivers gas to the air cushion 72 through the air pipe 75. The air cushion 72 opens (forming a U-shape when opened), floating the entire earthquake-resistant and flood-proof dry-type transformer. The air cushion 72 allows the earthquake-resistant and flood-proof dry-type transformer to automatically float during flood disasters, preventing it from being directly immersed in water. This further enhances the waterproof capability of the earthquake-resistant and flood-proof dry-type transformer and prevents it from being eroded by water accumulated on the ground.

[0071] Furthermore, ropes that can be extended to a certain length and connected to the working ground can be provided at the four corners of the bottom plate 71 to ensure that the bottom plate 71 is stable on the working ground.

[0072] Furthermore, a rain shelter 77 is provided on the top of the outer box body 4. The rain shelter 77 is located above the air pump 73. The rain shelter 77 protects the air pump 73 and prevents the air pump 73 from being wetted by rain.

[0073] Furthermore, the size of the air cushion 72 after being inflated can wrap the sealing window panel 43 , and the portion of the air cushion 72 used to wrap the sealing window panel 43 when not inflated is folded and placed between the outer box body 4 and the bottom plate 71 .

[0074] Shockproof dry-type transformers and traditional dry-type transformers usually do not have intelligent monitoring and early warning functions, and are unable to perceive and respond to potential safety hazards in a timely manner. In addition, the maintenance costs are high.

[0075] A central processing unit is provided inside the outer box 4 of the earthquake-resistant and flood-proof dry-type transformer. The central processing unit is electrically connected to the battery, the transformer body 1, and all sensors and other components, and can send an alarm signal to the external control center through its own wireless communication module. The central processing unit determines whether to start the self-protection mechanism (for example, whether to close the sealing window panel 43, start drainage, etc.) based on all sensor data, and sends an alarm through the wireless communication module. The first fan 5, the second fan 6, and each pressure sensor 442, the first sensor 46, the second sensor 48, the third sensor 76, the temperature sensor 11, and the acceleration sensor 12 of this embodiment are all connected to a backup battery to ensure that when the transformer body 1 stops working, each component can still operate. The backup battery is installed on the inner wall of the outer box 4 and is waterproof.

[0076] The earthquake-resistant and flood-proof dry-type transformer of this embodiment can monitor earthquakes and issue warnings (when the acceleration sensor 12 detects a horizontal acceleration of 5g or a vertical acceleration of 4g, a warning is issued) and floods, and can send alarms to the remote control center via the wireless communication module so that relevant personnel can take emergency measures in a timely manner to ensure a rapid response. The earthquake-resistant and flood-proof dry-type transformer achieves high stability and reliability in natural disasters such as earthquakes, rainstorms and floods, improving the safety and reliability of power distribution facilities. At the same time, it integrates intelligent monitoring. Through data analysis and remote diagnosis, operation and maintenance personnel can monitor the operating status of the equipment in real time and perform preventive maintenance, reducing human intervention and operation and maintenance costs, and reducing the failure rate and power outage risk caused by disasters.

[0077] The embodiments described above are only preferred embodiments of the present invention and are only used to explain the present invention, not to limit the scope of implementation of the present invention. For those skilled in the art, it is of course possible to easily make other implementation methods by replacing or changing the technical content disclosed in this specification. Therefore, all changes and improvements made to the principles and process conditions of the present invention should be included in the scope of the patent application of the present invention.

Claims

1. A seismic and flood-resistant dry-type transformer, comprising a transformer body (1), characterized in that: The invention also comprises a shock-absorbing bracket (3), an outer box (4) and an inner box (2); the shock-absorbing bracket (3) comprises a support frame (31), a fixing assembly and a shock-absorbing assembly; the support frame (31) is fixedly arranged inside the outer box (4) and located outside the inner box (2); the fixing assembly and the shock-absorbing assembly are fixedly arranged on the support frame (31); the inner box (2) is fixedly arranged on the fixing assembly via the shock-absorbing assembly; and the transformer body (1) is fixedly arranged inside the inner box (2).

2. The earthquake-resistant and flood-proof dry-type transformer according to claim 1, characterized in that: The support frame (31) comprises a support plate (311) fixedly arranged on the inner bottom wall of the outer box body (4) and a frame structure fixedly arranged on the support plate (311); the fixing component is fixedly arranged on the support plate (311); and the shock absorbing component is fixedly arranged on the frame structure.

3. The earthquake-resistant and flood-proof dry-type transformer according to claim 2, characterized in that: The fixing assembly comprises a first trough (32) and a second trough (33); the shock-absorbing assembly comprises a rubber pad (35), a plurality of shock-absorbing springs (34), a bellows (36) and a damper (37); the first trough (32) is fixedly arranged on the support plate (311); the plurality of shock-absorbing springs (34) are evenly arranged above the bottom of the first trough (32); the second trough (33) is located inside the first trough (32) and the bottom of the second trough (33) is in contact with the shock-absorbing springs (34); the rubber pad (35) is fixedly arranged on the inner wall of the second trough (33); the bottom of the inner box (2) is located inside the second trough (33) and the inner box (2) is in contact with the rubber pad (35); the plurality of bellows (36) are evenly arranged between the top of the inner box (2) and the frame structure; and the plurality of dampers (37) are evenly arranged between the side of the first trough (32) and the frame structure and between the side of the inner box (2) and the frame structure.

4. The earthquake-resistant and flood-proof dry-type transformer according to claim 3, characterized in that: The frame structure comprises a plurality of first columns (314), a first crossbeam (312) and a second crossbeam (313); the plurality of first columns (314) are evenly arranged on the support plate (311); the plurality of first crossbeams (312) and the second crossbeams (313) are fixedly connected and arranged in a well shape; both ends of the first crossbeam (312) and the second crossbeam (313) are fixedly connected to the top of the first column (314); the first crossbeam (312) and the second crossbeam (313) are located at the top of the inner box (2); the plurality of bellows (36) are evenly arranged between the top of the inner box (2) and the first crossbeam (312); and the plurality of dampers (37) are evenly arranged between the side of the first trough (32) and the first column (314) and between the side of the inner box (2) and the first column (314).

5. The earthquake-resistant and flood-proof dry-type transformer according to claim 4, characterized in that: A first fan (5) is fixedly provided on the first column (314), a second fan (6) is fixedly provided on the transformer body (1), a first heat dissipation window (21) is fixedly provided on the inner box (2), and a waterproof breathable membrane is provided on the first heat dissipation window (21), and air outlets of the first fan (5) and the second fan (6) are both directed toward the first heat dissipation window (21).

6. The earthquake-resistant and flood-proof dry-type transformer according to claim 5, characterized in that: A second heat dissipation window (41) and a waterproof rubber pad (411) are fixedly provided on the outer box body (4), and the waterproof rubber pad (411) is located outside the second heat dissipation window (41). The second heat dissipation window (41) is arranged corresponding to the first heat dissipation window (21). A sealing window plate (43) is movably provided on the outside of the outer box body (4), and the sealing window plate (43) covers the second heat dissipation window (41) and contacts the waterproof rubber pad (411).

7. The earthquake-resistant and flood-proof dry-type transformer according to claim 6, characterized in that: A slide groove (44) is fixedly provided in the outer box body (4), a slider (441) is slidably provided inside the slide groove (44), and pressure sensors (442) are fixedly provided at the top and bottom of the slider (441), a limit block (443) is fixedly provided at the top of the slide groove (44), a telescopic frame (45) is fixedly provided on the sealing window plate (43), and the telescopic frame (45) is fixedly connected to the slider (441) and the limit block (443) after passing through the outer box body (4).

8. The earthquake-resistant and flood-proof dry-type transformer according to claim 6, characterized in that: A first sensor (46) is fixedly provided on the top and bottom of the outer wall of the outer box door (42), a drainage hole (47) is provided at the bottom of the outer box door (42), and a drainage solenoid valve is fixedly provided at the drainage hole (47), and a second sensor (48) is fixedly provided on the inner bottom wall of the outer box body (4) near the drainage hole (47).

9. The earthquake-resistant and flood-proof dry-type transformer according to claim 1, characterized in that: The outer box (4) comprises a first insulating layer, an alloy layer and a first waterproof layer integrally formed from the inside to the outside, and the inner box (2) comprises a second insulating layer, a carbon fiber material layer and a second waterproof layer integrally formed from the inside to the outside.

10. The earthquake-resistant and flood-proof dry-type transformer according to claim 1, characterized in that: The invention also includes a protection component (7), the protection component (7) including a bottom plate (71), an air cushion (72) and an air pump (73), a plurality of support columns (74) are evenly fixedly arranged on the bottom plate (71), the outer box (4) is placed on the plurality of support columns (74), the air cushion (72) is placed on the bottom plate (71) and the air cushion (72) is located between the outer box (4) and the bottom plate (71), the air pump (73) is fixedly arranged on the outer box (4), and the air pump (73) is fixedly connected to and communicates with the air cushion (72) through an air pipe (75); and a third sensor (76) is fixedly arranged on each of the support columns (74).

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