A shock-resistant capacitor for rail transit

Abstract

This invention discloses a shock-resistant capacitor for rail transit, belonging to the field of capacitor technology. It includes a shock-absorbing ring, a shock-absorbing base with a shock-absorbing groove, a limiting ring fixedly sleeved on the outer wall of the shock-absorbing sleeve, and a shock-absorbing ring slidably mounted on the outer wall of the shock-absorbing sleeve. Both the limiting ring and the outer wall of the shock-absorbing ring mate with the inner wall of the shock-absorbing groove. A locking ring is positioned at the opening of the shock-absorbing groove, and its inner wall mates with the outer wall of the shock-absorbing sleeve. A first deformation support is provided between the limiting ring and the locking ring, a second deformation support is provided between the limiting ring and the shock-absorbing ring, and a third deformation support is provided between the shock-absorbing ring and the bottom of the shock-absorbing groove. A swing plate is disposed inside the shock-absorbing sleeve, and the swing plate has a rotating groove. The lower end of a lifting rod is positioned in the rotating groove, and a sliding groove is provided on the inner wall of the shock-absorbing sleeve. The upper end of the lifting rod is positioned in the sliding groove, and the swing plate is connected to the capacitor shell. Through the coordinated use of the swing plate, lifting rod, and shock-absorbing sleeve, the entire capacitor structure is less prone to damage due to vibration.

Description

Technical Field

[0001] This invention relates to the field of capacitor technology, and in particular to a shock-resistant capacitor for rail transit. Background Technology

[0002] Capacitors play a crucial role in rail transit. For example, they are used for signal compensation in track circuits, compensating for the inductive characteristics of the rails, reducing phase shift and amplitude attenuation during signal transmission, and ensuring stable signal transmission. They are also used in regenerative braking, recovering energy during braking for use in trams and other vehicles, reducing the burden on the battery during acceleration or start-up. Furthermore, they are used for power system optimization, improving power factor, reducing harmonic pollution and line losses, thus optimizing the power quality of the rail transit system. However, vibrations exist in rail transit systems, and installed capacitors are easily damaged by these vibrations, or their connections may become detached. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide an anti-vibration capacitor for rail transit.

[0004] The objective of this invention is achieved through the following technical solution:

[0005] A vibration-damping capacitor for rail transit includes a swing plate, a lifting rod, a shock-absorbing sleeve, a limiting ring, a locking ring, a shock-absorbing base, and a shock-absorbing ring. The shock-absorbing base has a shock-absorbing groove. The limiting ring is fixedly sleeved on the outer wall of the shock-absorbing sleeve. The shock-absorbing ring is slidably disposed on the outer wall of the shock-absorbing sleeve and is located between the limiting ring and the bottom of the shock-absorbing groove. The outer walls of both the limiting ring and the shock-absorbing ring mate with the inner wall of the shock-absorbing groove. The locking ring is disposed on the opening of the shock-absorbing groove, and its inner wall mates with the outer wall of the shock-absorbing sleeve. A third... A deformation support is provided, a second deformation support is provided between the limiting ring and the damping ring, and a third deformation support is provided between the damping ring and the bottom of the damping groove. The first deformation support, the second deformation support and the third deformation support are all provided between the outer wall of the damping sleeve and the inner wall of the damping groove. The swing plate is provided inside the damping sleeve, and the swing plate is provided with a rotation groove. The lower end of the lifting rod is provided in the rotation groove. The inner wall of the damping sleeve is provided with a sliding groove, and the upper end of the lifting rod is provided in the sliding groove. The swing plate is connected to the capacitor shell.

[0006] Furthermore, an upper ball head is fixedly provided on the upper end of the lifting rod, and a lower ball head is fixedly provided on the lower end of the lifting rod. The lower ball head is disposed in the rotating groove and cooperates with the rotating groove. The upper ball head is slidably disposed in the sliding groove and cooperates with the sliding groove. A spherical groove that cooperates with the upper ball head is provided on the lower end of the sliding groove.

[0007] Furthermore, an installation ring is provided on the outer wall of the capacitor shell, an adjusting outer sleeve is fixedly provided on the installation ring, an adjusting inner sleeve is slidably provided inside the adjusting outer sleeve, an adjusting fastening component is provided between the adjusting outer sleeve and the adjusting inner sleeve, an arc plate that mates with the inner wall of the shock-absorbing sleeve is fixedly provided on the end of the adjusting inner sleeve, a first anti-rotation surface is provided inside the adjusting outer sleeve, a second anti-rotation surface that mates with the first anti-rotation surface is provided on the adjusting inner sleeve, an upward sliding arc that mates with the upper end of the arc plate, and a downward sliding arc that mates with the lower end of the arc plate.

[0008] Furthermore, the adjusting fastening component includes a top rod, a rotating seat, an adjusting rod, and an anti-detachment spring. One end of the adjusting inner sleeve is provided with a first limiting blind hole, and one end of the top rod is rotatably disposed in the first limiting blind hole. The rotating seat is provided with a second limiting blind hole, and the other end of the top rod is rotatably disposed in the second limiting blind hole. The outer wall of the rotating seat is provided with an annular adjusting groove, in which at least two adjusting rings are rotatably disposed. The adjusting rod is fixedly disposed on each adjusting ring. The adjusting outer sleeve is provided with a sliding groove that mates with the adjusting rod. One side of the sliding groove is provided with a first locking groove that mates with the adjusting rod, and the other side of the sliding groove is provided with a second locking groove that mates with the adjusting rod. The first locking groove and the second locking groove are offset. The anti-detachment spring is fixedly disposed on the sidewalls of both the first and second locking grooves, and the anti-detachment spring is disposed away from the mounting ring.

[0009] Furthermore, at least two first deformation supports are evenly arranged between the limiting ring and the locking ring, at least two second deformation supports are evenly arranged between the limiting ring and the damping ring, and at least two third deformation supports are evenly arranged between the damping ring and the bottom of the damping groove.

[0010] Furthermore, the second deformation support is disposed between the two third deformation supports, and the third deformation support is disposed between the two second deformation supports.

[0011] Furthermore, an insulating base is provided on the swing plate, and a conductive tube is fixedly mounted on the insulating base. The capacitor pin is inserted into the upper end of the conductive tube. An expansion joint is provided on the upper end of the conductive tube, and a locking spring that cooperates with the expansion joint is provided on the conductive tube. A locking groove for the locking spring that cooperates with the locking spring is provided on the insulating base. The lower end of the conductive tube is electrically connected to the upper end of the conductive spring, and the lower end of the conductive spring is electrically connected to an external terminal. The external terminal is fixedly mounted on the shock-absorbing base by an insulating sleeve.

[0012] Furthermore, a protective plate is provided on the top of the shock-absorbing sleeve, the protective plate is provided with a first heat dissipation hole, and the shock-absorbing sleeve is provided with a second heat dissipation hole.

[0013] Furthermore, a central damping spring is fixedly installed on the middle part of the arc plate, and the axis of the central damping spring is arranged parallel to the length direction of the adjusting jacket.

[0014] Furthermore, the cross-sections of the shock-absorbing sleeve, the limiting ring, the locking ring, the shock-absorbing seat, and the shock-absorbing ring are all square.

[0015] The beneficial effects of this invention are:

[0016] 1) In this technology, the use of components such as swing plate, lifting rod and shock absorber sleeve makes the entire capacitor structure less susceptible to damage from vibration. In rail transit, the capacitor can operate for a long time, ensuring continuous operation throughout the rail transit system.

[0017] 2) In this technology, the combined use of the first deformation support, the second deformation support and the third deformation support achieves multi-level vertical shock absorption, and the combined use of the lifting rod and the swing plate achieves lateral shock absorption through displacement, thus making the entire anti-vibration capacitor have better anti-vibration function.

[0018] 3) In this technology, by using the installation ring, adjusting outer sleeve, adjusting inner sleeve and arc plate in combination, the swing plate is effectively prevented from hitting the inner wall of the shock-absorbing sleeve, thus further achieving shock absorption and preventing the capacitor from being damaged by collision.

[0019] 4) In this technology, by using the second deformation support and the third deformation support in a staggered distribution, the damping ring can also achieve deformation damping during operation, thereby enabling more levels of damping between the damping sleeve and the damping seat, and better ensuring the damping effect of the anti-vibration capacitor. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the main view connection structure of the anti-vibration capacitor;

[0021] Figure 2 for Figure 1 A schematic diagram of the AA cross-sectional connection structure;

[0022] Figure 3 for Figure 1 Schematic diagram of the BB cross-sectional connection structure;

[0023] Figure 4 for Figure 3 A magnified structural diagram at point C;

[0024] Figure 5 for Figure 3 A magnified structural diagram at point D;

[0025] Figure 6 A schematic diagram of the connection structure of multiple lifting rods;

[0026] Figure 7 for Figure 6 A magnified structural diagram at point E;

[0027] Figure 8 This is a schematic diagram of the adjustment structure of the arc plate;

[0028] Figure 9 A schematic diagram illustrating the fitting structure between the adjusting outer layer and the adjusting inner layer;

[0029] Figure 10 This is a schematic diagram of the connection structure when the first deformation support, the second deformation support, and the third deformation support are all springs.

[0030] Figure 11 This is a schematic diagram of the connection structure when the first deformation support, the second deformation support, and the third deformation support are all spring sheets.

[0031] In the diagram, 1-swing plate, 2-lifting rod, 3-shock absorber sleeve, 4-limiting ring, 5-locking ring, 6-shock absorber seat, 7-shock absorber ring, 8-shock absorber groove, 9-first deformation support, 10-second deformation support, 11-third deformation support, 12-rotation groove, 13-slide groove, 14-capacitor housing, 15-upper ball head, 16-lower ball head, 17-spherical groove, 18-mounting ring, 19-adjusting outer sleeve, 20-adjusting inner sleeve, 21-arc plate, 22-first anti-rotation surface, 23-second anti-rotation surface, 24-upper sliding arc, 25-lower sliding arc, 26-top rod, 27-rotation seat, 28-adjusting rod, 29-anti-detachment spring piece, 30-slide groove. 31-First locking groove, 32-Second locking groove, 33-Insulating base, 34-Capacitor pin, 35-Conductive tube, 36-Expansion joint, 37-Locking coil spring, 38-Coil spring locking groove, 39-Conductive spring, 40-External end, 41-Insulating sleeve, 42-Protective plate, 43-First heat dissipation hole, 44-Second heat dissipation hole, 45-Adjusting ring, 46-Central shock-absorbing spring. Detailed Implementation

[0032] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] See Figures 1-11 The present invention provides a technical solution:

[0034] An anti-vibration capacitor for rail transit includes a swing plate 1, a lifting rod 2, a shock-absorbing sleeve 3, a limiting ring 4, a locking ring 5, a shock-absorbing seat 6, and a shock-absorbing ring 7. The shock-absorbing seat 6 has a shock-absorbing groove 8. The limiting ring 4 is fixedly sleeved on the outer wall of the shock-absorbing sleeve 3. The shock-absorbing ring 7 is slidably disposed on the outer wall of the shock-absorbing sleeve 3, and is located between the limiting ring 4 and the bottom of the shock-absorbing groove 8. The outer walls of both the limiting ring 4 and the shock-absorbing ring 7 mate with the inner wall of the shock-absorbing groove 8. The locking ring 5 is disposed at the opening of the shock-absorbing groove 8, and its inner wall mates with the outer wall of the shock-absorbing sleeve 3. A first-shaped space is provided between the limiting ring 4 and the locking ring 5. A second deformation support 10 is provided between the first deformation support 9, the limiting ring 4, and the damping ring 7. A third deformation support 11 is provided between the bottom of the damping ring 7 and the damping groove 8. The first deformation support 9, the second deformation support 10, and the third deformation support 11 are all located between the outer wall of the damping sleeve 3 and the inner wall of the damping groove 8. The swing plate 1 is located inside the damping sleeve 3 and has a rotating groove 12. The lower end of the lifting rod 2 is located in the rotating groove 12. The inner wall of the damping sleeve 3 has a sliding groove 13, and the upper end of the lifting rod 2 is located in the sliding groove 13. The swing plate 1 is connected to the capacitor shell 14. The cross-sections of the damping sleeve 3, the limiting ring 4, the locking ring 5, the damping seat 6, and the damping ring 7 are all square. The first deformation support 9, the second deformation support 10, and the third deformation support 11 can be either floating or fixed. During fixed installation, the first deformation support 9 can be fixed to the limiting ring 4 or the locking ring 5, but the first deformation support 9 cannot be fixed to both the limiting ring 4 and the locking ring 5 simultaneously; the second deformation support 10 can be fixed to the limiting ring 4 or the damping ring 7, but the second deformation support 10 cannot be fixed to both the limiting ring 4 and the damping ring 7 simultaneously; the third deformation support 11 can be fixed to the damping ring 7 or the damping groove 8, but the third deformation support 11 cannot be fixed to both the damping ring 7 and the damping groove 8 simultaneously. During floating installation, both the limiting ring 4 and the locking ring 5 are provided with a first mounting groove for installing the first deformation support 9, both the limiting ring 4 and the damping ring 7 are provided with a second mounting groove for installing the second deformation support 10, and both the damping ring 7 and the damping groove 8 are provided with a third mounting groove for installing the third deformation support 11 at their bottoms. The first, second, and third mounting slots are all limiting mounting slots. Under the action of the limiting mounting slots, the first deformation support 9, the second deformation support 10, and the third deformation support 11 will not contact the outer wall of the damping sleeve 3, nor will they contact the inner wall of the damping groove 8, preventing the first deformation support 9, the second deformation support 10, and the third deformation support 11 from deforming and affecting the damping. In order to prevent the damping sleeve 3 from rotating in the damping groove 8 of the damping seat 6, the damping groove 8 is a square groove, the cross-section of the damping sleeve 3 is square, and at least four of the first deformation supports 9, the second deformation support 10, and the third deformation support 11 are provided. At least one first deformation support 9, one second deformation support 10, and one third deformation support 11 are provided on each side of the damping sleeve 3.The third deformation support 11 provides primary damping, the second deformation support 10 provides secondary damping, and the damping sleeve 3 can move up and down within the damping groove 8. Therefore, to prevent collision between the limiting ring 4 and the locking ring 5, the first deformation support 9 is provided for anti-collision damping. The first deformation support 9, the second deformation support 10, and the third deformation support 11 can all be metal springs. The metal springs are all in a compressed state. The metal springs can be placed vertically (for example, the upper end of the spring contacts the limiting ring 4, and the lower end of the spring contacts the locking ring 5, that is, the spring axis is in a vertical state), or they can be placed horizontally (for example, the spring axis is in a horizontal state). The first deformation support 9, the second deformation support 10, and the third deformation support 11 can all be metal elastic pipes with a circular or elliptical cross-section. The centerline of the metal elastic pipe is placed horizontally. When the first deformation support 9, the second deformation support 10, and the third deformation support 11 are springs or elastic pipes, they can be fixedly installed or floatingly installed. The first deformation support 9, the second deformation support 10, and the third deformation support 11 can also be metal springs with an S-shaped or C-shaped cross-section. The metal springs can only be fixedly installed and connected by welding. The locking ring 5 is connected to the shock absorber 6 with screws, which facilitates replacement if any of the first deformation supports 9, the second deformation support 10, or the third deformation support 11 is damaged. A connecting lug is fixedly provided on the lower outer wall of the shock absorber 6, and the connecting lug is fixed to the equipment using this anti-vibration capacitor by screws. The swing plate 1 is set inside the shock-absorbing sleeve 3 and has a square cross-section. Each of the four sides of the swing plate 1 has a rotating groove 12 for the lifting rod 2. The inner wall of the shock-absorbing sleeve 3 has four sliding grooves 13 that mate with the four rotating grooves 12. The four rotating grooves 12 and the four sliding grooves 13 are connected by four lifting rods 2. Inside the shock-absorbing sleeve 3, the swing plate 1 is in a horizontal position. The outer wall of the shock-absorbing sleeve 3 does not contact the inner wall of the limiting ring 4. Neither the shock-absorbing sleeve 3 nor the shock-absorbing seat 6 contacts the shock-absorbing ring 7. The capacitor shell 14 is fixed to the swing plate 1 with screws. Both the swing plate 1 and the lifting rods 2 are made of metal, which helps to transfer heat from the capacitor shell 14. The capacitor shell 14 encapsulates electrodes, metal foil, and dielectric materials. The shock-absorbing sleeve 3 also does not contact the locking ring 5.

[0035] In some embodiments, an upper ball head 15 is fixedly provided on the upper end of the lifting rod 2, and a lower ball head 16 is fixedly provided on the lower end of the lifting rod 2. The lower ball head 16 is disposed in the rotating groove 12 and cooperates with the rotating groove 12. The upper ball head 15 is slidably disposed in the sliding groove 13 and cooperates with the sliding groove 13. A spherical groove 17 that cooperates with the upper ball head 15 is provided on the lower end of the sliding groove 13. The slide groove 13 is a vertically arranged cylindrical groove. The upper ball head 15 can slide up and down in the cylindrical groove. The lower end of the cylindrical groove is spherical and fits with the upper ball head 15. A horizontal connecting rod is fixedly installed on the upper ball head 15. The horizontal connecting rod is fixedly connected to the upper end of the lifting rod 2. The lower end of the lifting rod 2 is fixedly connected to the lower ball head 16. The center line of the lifting rod 2 passes through the center of the lower ball head 16. The upper ball head 15 is a complete sphere. The lower ball head 16 can be a complete sphere or a hemisphere. When it is a hemisphere, the spherical surface of the lower ball head 16 fits with the spherical groove 17. A through hole is provided at the bottom of the spherical groove 17. The lifting rod 2 passes through the through hole and is fixedly connected to the lower ball head 16. The diameter of the through hole is larger than the diameter of the lifting rod 2, so that the swing plate 1 can swing in multiple directions within the shock-absorbing sleeve 3. In this technology, the lifting rod 2 is a cylindrical rod with a circular cross-section. The lifting rod 2 is divided into two sections. A boss is provided in the middle of one section, and an external thread is provided on the boss. A groove that mates with the boss is provided on the inner wall of the groove, and an internal thread that mates with the external thread is provided. This makes it easy to adjust the total length of the lifting rod 2 so that the swing plate 1 is placed horizontally inside the shock-absorbing sleeve 3, and the swing plate 1 is located at the center position inside the shock-absorbing sleeve 3.

[0036] In some embodiments, a mounting ring 18 is provided on the outer wall of the capacitor housing 14, an adjusting outer sleeve 19 is fixedly provided on the mounting ring 18, an adjusting inner sleeve 20 is slidably provided inside the adjusting outer sleeve 19, an adjusting fastening component is provided between the adjusting outer sleeve 19 and the adjusting inner sleeve 20, an arc plate 21 that cooperates with the inner wall of the shock-absorbing sleeve 3 is fixedly provided at the end of the adjusting inner sleeve 20, a first anti-rotation surface 22 is provided inside the adjusting outer sleeve 19, a second anti-rotation surface 23 that cooperates with the first anti-rotation surface 22 is provided on the adjusting inner sleeve 20, an upward sliding arc 24 that cooperates with the upper end of the shock-absorbing sleeve 3 is provided at the upper end of the arc plate 21, and a downward sliding arc 25 that cooperates with the lower end of the arc plate 21 is provided at the lower end of the arc plate 21. To better transfer heat, the capacitor casing 14 and the mounting ring 18 are fixedly connected by welding. Adjustable sleeves 19 are fixed to the mounting ring 18 by welding. At least four adjustable sleeves 19 are fixedly installed on the mounting ring 18. At least one adjustable sleeve 19 is fitted onto each inner side of the shock-absorbing sleeve 3. The arc plate 21 is connected inside the adjustable sleeve 19 via an adjusting inner sleeve 20. The function of the adjusting fastener is to control the length of the adjusting inner sleeve 20 within the adjustable sleeve 19, ensuring that the two ends of the arc plate 21 are either in contact with or just out of contact with the inner wall of the shock-absorbing sleeve 3. The plane containing the arc plate 21 is vertical. Therefore, a first anti-rotation surface 22 is provided on the adjustable sleeve 19, and a second anti-rotation surface 23 is provided on the adjusting inner sleeve 20. Both the adjustable sleeve 19 and the adjusting inner sleeve 20 have circular cross-sections. An upward sliding arc 24 and a downward sliding arc 25 are respectively provided at both ends of the arc plate 21 to prevent the ends of the arc plate 21 from scratching the inner wall of the shock-absorbing sleeve 3 during shock-absorbing deformation, thus preventing a decrease in the shock-absorbing effect. The adjusting outer sleeve 19, adjusting inner sleeve 20, arc plate 21, upper sliding arc 24, and lower sliding arc 25 are all made of metal, which not only dampens vibrations during use but also conducts and dissipates heat. The side of the arc plate 21 is arranged in an arc shape. The arc plate 21 can be fixed to the end of the adjusting inner sleeve 20 by screws or by welding. The mounting ring 18 is octagonal, and adjusting outer sleeves 19 are provided on both sides of the lifting rod 2 to prevent uneven force on the mounting ring 18 during vibration damping and potential collisions.

[0037] In some embodiments, the adjusting fastening component includes a push rod 26, a rotating seat 27, an adjusting rod 28, and an anti-disengagement spring 29. A first limiting blind hole is provided at one end of the adjusting inner sleeve 20, and one end of the push rod 26 is rotatably disposed in the first limiting blind hole. A second limiting blind hole is provided on the rotating seat 27, and the other end of the push rod 26 is rotatably disposed in the second limiting blind hole. An annular adjusting groove is provided on the outer wall of the rotating seat 27, and at least two adjusting rings 45 are rotatably disposed in the adjusting groove. The adjusting rings 45 are fixed... An adjusting rod 28 is fixedly provided. The adjusting sleeve 19 is provided with a sliding groove 30 that cooperates with the adjusting rod 28. A first locking groove 31 that cooperates with the adjusting rod 28 is provided on one side of the sliding groove 30, and a second locking groove 32 that cooperates with the adjusting rod 28 is provided on the other side of the sliding groove 30. The first locking groove 31 and the second locking groove 32 are offset. Anti-detachment spring pieces 29 are fixedly provided on the side walls of the first locking groove 31 and the second locking groove 32. The anti-detachment spring pieces 29 are located away from the mounting ring 18. The bottoms of both the first and second limiting blind holes are spherical, and both ends of the top rod 26 are spherical. Both the top rod 26 and the rotating seat 27 can rotate within the adjusting outer sleeve 19. The adjusting ring 45 can rotate on the rotating seat 27. Multiple adjusting rings 45 are provided in the adjusting groove on the rotating seat 27, and each adjusting ring 45 is equipped with an adjusting rod 28. Any adjusting rod 28 can be engaged in either the first locking groove 31 or the second locking groove 32. Multiple first and second locking grooves 31 and 32 are provided. By cooperating with the adjusting rod 28 in the first or second locking groove 31, the length of the adjusting inner sleeve 20 within the adjusting outer sleeve 19 can be controlled, thereby controlling the distance between the arc plate 21 and the inner wall of the shock-absorbing sleeve 3. This effectively prevents collision between the swing plate 1 and the shock-absorbing sleeve 3, which could damage the capacitor. The top rod 26, rotating seat 27, adjusting rod 28, adjusting ring 45, and anti-detachment spring 29 are all made of thermally conductive metal material, which can dissipate and conduct heat for the anti-vibration capacitor during operation. The function of the anti-detachment spring 29 is to prevent the adjusting rod 28 from falling out of the first locking groove 31 or the second locking groove 32.

[0038] In some embodiments, at least two first deformation supports 9 are evenly arranged between the limiting ring 4 and the locking ring 5, at least two second deformation supports 10 are evenly arranged between the limiting ring 4 and the damping ring 7, and at least two third deformation supports 11 are evenly arranged between the damping ring 7 and the bottom of the damping groove 8. Multiple first deformation supports 9, second deformation supports 10, and third deformation supports 11 are provided. When any one of the deformation supports is damaged or fails, the other deformation supports will continue to perform damping work, and the entire anti-vibration capacitor will not be damaged by vibration, thus extending the service life of the anti-vibration capacitor.

[0039] In some embodiments, the second deformation support 10 is disposed between two third deformation supports 11, and the third deformation support 11 is disposed between two second deformation supports 10. The second deformation supports 10 and the third deformation supports 11 are used in a staggered manner, so that the damping ring 7 can also achieve deformation damping during operation, thereby achieving four-level damping between the damping sleeve 3 and the damping seat 6.

[0040] In some embodiments, an insulating seat 33 is provided on the swing plate 1, and a conductive tube 35 is fixedly provided on the insulating seat 33. A capacitor pin 34 is inserted into the upper end of the conductive tube 35. An expansion joint 36 is provided on the upper end of the conductive tube 35. A locking spring 37 that cooperates with the expansion joint 36 is provided on the conductive tube 35. A spring locking groove 38 that cooperates with the locking spring 37 is provided on the insulating seat 33. The lower end of the conductive tube 35 is electrically connected to the upper end of the conductive spring 39. The lower end of the conductive spring 39 is electrically connected to the external terminal 40. The external terminal 40 is fixedly provided on the shock-absorbing seat 6 through an insulating sleeve 41. The capacitor pins 34 are electrically connected to the electrodes. The number of capacitor pins 34 corresponds to the number of electrodes, and the number of corresponding insulating seats 33 also corresponds to the number of electrodes. Each insulating seat 33 has a fixed conductive tube 35. During installation, the capacitor pins 34 can be inserted into the conductive tubes 35. An expansion joint 36 is provided on the conductive tube 35 to allow its upper end to open and close. A locking spring 37 (pre-existing technology) is used to tighten the upper end of the conductive tube 35, better securing the capacitor pins 34 and maintaining full contact for conduction. The conductive spring 39 (pre-existing technology) conducts electricity. An insulating layer is provided on the outside of the conductive spring 39. The external terminal 40 is electrically connected to the circuit requiring the capacitor. An insulating sleeve 41 insulates the external terminal 40. The external terminal 40 can be located on the bottom of the shock-absorbing seat 6 or on its side wall.

[0041] In some embodiments, a protective plate 42 is provided on the top of the shock-absorbing sleeve 3. The protective plate 42 has first heat dissipation holes 43, and the shock-absorbing sleeve 3 has second heat dissipation holes 44. The protective plate 42 is attached to the shock-absorbing sleeve 3 by screws. The protective plate 42 prevents foreign objects from falling between the inner wall of the shock-absorbing sleeve 3 and the outer wall of the capacitor casing 14, thus preventing the internal part of the capacitor casing 14 from achieving lateral shock absorption. The larger the volume of the metal foil encapsulated inside the capacitor casing 14, the more heat the entire capacitor generates. To prevent the capacitor from being damaged by high temperature, a large number of first heat dissipation holes 43 are provided on the protective plate 42, and a large number of second heat dissipation holes 44 are provided on the side wall of the shock-absorbing sleeve 3. No second heat dissipation holes 44 are provided in the slide groove 13; the second heat dissipation holes 44 are located between two adjacent slide grooves 13.

[0042] In some embodiments, a central damping spring 46 is fixedly disposed on the middle portion of the arc plate 21, and the axis of the central damping spring 46 is parallel to the length direction of the adjusting sleeve 19. When the elasticity of the arc plate 21 fails, the central damping spring 46 continues to operate. When both ends of the arc plate 21 are in contact with the inner wall of the damping sleeve 3, the end of the central damping spring 46 is not in contact with the inner wall of the damping sleeve 3. When the arc plate 21 continues to be compressed and deformed, the end of the central damping spring 46 then contacts the inner wall of the damping sleeve 3. The axis of the central damping spring 46 coincides with the axis of the adjusting sleeve 19.

[0043] In the description of this invention, it should be understood that the terms "upper", "lower", "bottom", "one end", "top", "middle", "other end", "coaxial", "one side", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing this invention and simplifying the description, and are not intended to 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 this invention.

[0044] In this invention, unless otherwise explicitly specified and limited, the terms "set", "install", "connect", "fix", "hinged", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0045] The above description is merely a preferred embodiment of the present invention. It should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the concept described herein through the above teachings or related technologies or knowledge. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A seismic-resistant capacitor for rail transit, characterized in that: The device includes a swing plate (1), a lifting rod (2), a shock-absorbing sleeve (3), a limiting ring (4), a locking ring (5), a shock-absorbing seat (6), and a shock-absorbing ring (7). The shock-absorbing seat (6) is provided with a shock-absorbing groove (8). The limiting ring (4) is fixedly sleeved on the outer wall of the shock-absorbing sleeve (3). The shock-absorbing ring (7) is slidably disposed on the outer wall of the shock-absorbing sleeve (3) and is disposed between the limiting ring (4) and the bottom of the shock-absorbing groove (8). The outer walls of the limiting ring (4) and the shock-absorbing ring (7) are both engaged with the inner wall of the shock-absorbing groove (8). The locking ring (5) is disposed on the opening of the shock-absorbing groove (8) and its inner wall is engaged with the outer wall of the shock-absorbing sleeve (3). A first deformation support (9) is provided between the limiting ring (4) and the locking ring (5). A second deformation support (10) is provided between the limiting ring (4) and the shock-absorbing ring (7), and a third deformation support (11) is provided between the shock-absorbing ring (7) and the bottom of the shock-absorbing groove (8). The first deformation support (9), the second deformation support (10) and the third deformation support (11) are all provided between the outer wall of the shock-absorbing sleeve (3) and the inner wall of the shock-absorbing groove (8). The swing plate (1) is provided inside the shock-absorbing sleeve (3). A rotating groove (12) is provided on the swing plate (1). The lower end of the lifting rod (2) is provided in the rotating groove (12). A sliding groove (13) is provided on the inner wall of the shock-absorbing sleeve (3). The upper end of the lifting rod (2) is provided in the sliding groove (13). The swing plate (1) is connected to the capacitor shell (14).

2. The anti-seismic capacitor for rail transit according to claim 1, characterized in that: The upper end of the lifting rod (2) is fixedly provided with an upper ball head (15), and the lower end of the lifting rod (2) is fixedly provided with a lower ball head (16). The lower ball head (16) is provided in the rotating groove (12) and cooperates with the rotating groove (12). The upper ball head (15) is slidably provided in the sliding groove (13) and cooperates with the sliding groove (13). The lower end of the sliding groove (13) is provided with a spherical groove (17) that cooperates with the upper ball head (15).

3. A seismic-resistant capacitor for rail transit according to claim 1 or 2, characterized in that: An installation ring (18) is provided on the outer wall of the capacitor shell (14). An adjustment outer sleeve (19) is fixedly provided on the installation ring (18). An adjustment inner sleeve (20) is slidably provided inside the adjustment outer sleeve (19). An adjustment fastening component is provided between the adjustment outer sleeve (19) and the adjustment inner sleeve (20). An arc plate (21) that cooperates with the inner wall of the shock-absorbing sleeve (3) is fixedly provided on the end of the adjustment inner sleeve (20). A first anti-rotation surface (22) is provided inside the adjustment outer sleeve (19). A second anti-rotation surface (23) that cooperates with the first anti-rotation surface (22) is provided on the adjustment inner sleeve (20). An upward sliding arc (24) that cooperates with the upper end of the arc plate (21) is provided on the upper end of the shock-absorbing sleeve (3). A downward sliding arc (25) that cooperates with the lower end of the arc plate (21) is provided on the lower end of the arc plate (21).

4. The anti-seismic capacitor for rail transit according to claim 3, characterized in that: The adjusting fastening component includes a top rod (26), a rotating seat (27), an adjusting rod (28), and an anti-detachment spring (29). One end of the adjusting inner sleeve (20) is provided with a first limiting blind hole. One end of the top rod (26) is rotatably disposed in the first limiting blind hole. The rotating seat (27) is provided with a second limiting blind hole. The other end of the top rod (26) is rotatably disposed in the second limiting blind hole. The outer wall of the rotating seat (27) is provided with an annular adjusting groove. At least two adjusting rings (45) are rotatably disposed in the adjusting groove. The adjusting rod (28) is fixedly disposed on the adjusting rings (45). The adjusting sleeve (19) is provided with a sliding groove (30) that cooperates with the adjusting rod (28). A first locking groove (31) that cooperates with the adjusting rod (28) is provided on one side of the sliding groove (30), and a second locking groove (32) that cooperates with the adjusting rod (28) is provided on the other side of the sliding groove (30). The first locking groove (31) and the second locking groove (32) are offset. The anti-detachment spring piece (29) is fixedly provided on the side wall of both the first locking groove (31) and the second locking groove (32). The anti-detachment spring piece (29) is located away from the mounting ring (18).

5. A seismic-resistant capacitor for rail transit according to claim 1 or 2, characterized in that: At least two first deformation supports (9) are evenly arranged between the limiting ring (4) and the locking ring (5), at least two second deformation supports (10) are evenly arranged between the limiting ring (4) and the damping ring (7), and at least two third deformation supports (11) are evenly arranged between the damping ring (7) and the bottom of the damping groove (8).

6. A seismic-resistant capacitor for rail transit according to claim 1 or 2, characterized in that: The second deformation support (10) is disposed between the two third deformation supports (11), and the third deformation support (11) is disposed between the two second deformation supports (10).

7. A seismic-resistant capacitor for rail transit according to claim 1 or 2, characterized in that: An insulating seat (33) is provided on the swing plate (1), and a conductive tube (35) is fixedly provided on the insulating seat (33). A capacitor pin (34) is inserted into the upper end of the conductive tube (35). An expansion joint (36) is provided on the upper end of the conductive tube (35). A locking spring (37) that cooperates with the expansion joint (36) is provided on the conductive tube (35). A spring locking groove (38) that cooperates with the locking spring (37) is provided on the insulating seat (33). The lower end of the conductive tube (35) is electrically connected to the upper end of the conductive spring (39). The lower end of the conductive spring (39) is electrically connected to the external terminal (40). The external terminal (40) is fixedly provided on the shock-absorbing seat (6) by an insulating sleeve (41).

8. A seismic-resistant capacitor for rail transit according to claim 1 or 2, characterized in that: The shock-absorbing sleeve (3) is provided with a protective plate (42) on its top, and the protective plate (42) is provided with a first heat dissipation hole (43) and the shock-absorbing sleeve (3) is provided with a second heat dissipation hole (44).

9. A seismic-resistant capacitor for rail transit according to claim 3, characterized in that: A central damping spring (46) is fixedly installed on the middle part of the arc plate (21), and the axis of the central damping spring (46) is parallel to the length direction of the adjusting jacket (19).

10. A seismic-resistant capacitor for rail transit according to claim 1 or 2, characterized in that: The cross-sections of the shock-absorbing sleeve (3), the limiting ring (4), the locking ring (5), the shock-absorbing seat (6), and the shock-absorbing ring (7) are all square.

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