A self-protective shock-absorbing high-voltage switchgear

Abstract

The present invention provides a self-protecting shock-absorbing high-voltage switchgear cabinet, which relates to the technical field of high-voltage switchgear cabinets. It includes an electric control base, a groove is provided inside the electric control base, and shock-absorbing structures are symmetrically and fixedly installed at the upper end of the electric control base. By setting the shock-absorbing structures, when the switching devices such as circuit breakers and disconnectors inside the high-voltage switchgear cabinet body perform opening and closing operations, the moving contacts and static contacts inside it will quickly separate, which will cause mechanical vibrations inside the high-voltage switchgear cabinet body. By setting the shock-absorbing structures, the high-voltage switchgear cabinet body is arranged on the suspension electromagnet assembly. Utilizing the suspension characteristics between the magnetic suspension assembly and the suspension electromagnet assembly, the energy conducted from the mechanical vibrations to the electric control base and surrounding equipment can be effectively reduced. The suspension state changes the rigid connection between the high-voltage switchgear cabinet body and the electric control base into a flexible electromagnetic force connection, greatly reducing the transmission of vibrations between the high-voltage switchgear cabinet body and surrounding objects, thereby improving the protection performance.

Description

Technical Field

[0001] The invention belongs to the technical field of high - voltage switch cabinets, and more specifically, particularly relates to a self - protecting shock - absorbing high - voltage switch cabinet. Background Technique

[0002] A high - voltage switch cabinet is an electrical device used in a power system to receive and distribute electric energy, control, protect, and monitor circuits. It mainly has the following characteristics and functions. Usually, it adopts a metal shell with a certain mechanical strength and protection level, which can protect internal equipment from the external environment, such as dust, moisture, etc. For example, common cabinet materials are cold - rolled steel plates, which are processed through processes such as bending and welding, and the protection level can reach IP4X and above, effectively preventing foreign objects from invading.

[0003] Currently, an existing device (such as publication number: CN106786002A) discloses a detachable high - voltage switch cabinet with a shock - absorbing function. This high - voltage switch cabinet can automatically monitor the temperature and humidity inside the cabinet, send out alarms in a timely manner, is safe and reliable, and has a good shock - absorbing effect. It can reduce the damage to the switch cabinet body caused by impacts, ground vibrations, etc., has a low center of gravity, is stably installed, is simple to disassemble, and is convenient for maintenance;

[0004] However, during the implementation of the above - mentioned technical solution, it is found that there are at least the following technical problems: When the high - voltage switch cabinet performs a power - on operation each time, due to the working characteristics of the internal electrical components and the circuit system, a relatively large - amplitude vibration phenomenon will inevitably occur. The shock - absorbing method adopted by this high - voltage switch cabinet mainly relies on shock - absorbing springs. However, since the high - voltage switch cabinet and the shock - absorbing springs are in a directly - contacting form, when vibration occurs, although the shock - absorbing springs can absorb and buffer part of the vibration energy to a certain extent, due to its contact - type structural characteristics, it is impossible to fundamentally and greatly block the transmission path of vibration energy between the two. This leads to that during the shock - absorbing process, a considerable part of the vibration will still continue to spread to the surrounding structures or components, and thus it is impossible to further reduce the transmission range and intensity of its vibration. Summary of the Invention

[0005] In order to solve the above - mentioned technical problems, the invention provides a self - protecting shock - absorbing high - voltage switch cabinet to solve the above problems.

[0006] A self - protecting shock - absorbing high - voltage switch cabinet includes an electric control base. A groove is opened inside the electric control base, and a magnetic levitation component is fixedly installed in the groove in an embedded manner. A suspended electromagnet component is arranged at the upper end of the magnetic levitation component, and the suspended electromagnet component is adapted to the magnetic levitation component. A high - voltage switch cabinet body is fixedly installed at the upper end of the suspended electromagnet component;

[0007] A shock-absorbing structure is symmetrically and fixedly installed at the upper end of the electric control base;

[0008] The shock-absorbing structure includes fixed columns. Both of the two fixed columns are located on both sides of the magnetic levitation assembly. Chutes are opened inside both of the two fixed columns. Reset air rods are fixedly installed inside both of the two chutes. Sliding rods are fixedly installed on the output shafts of both of the two reset air rods. Both of the two sliding rods are located inside the chutes. Both of the two sliding rods are slidably installed in the chutes. Both of the two sliding rods are partially exposed above the chutes. Side columns are fixedly installed on the side walls of both of the two sliding rods. A rectangular square plate is fixedly installed between both of the two side columns.

[0009] Preferably, both of the two side columns are located above the high-voltage switch cabinet body. Object placement grooves are symmetrically opened inside the rectangular square plate. Shock-absorbing springs are fixedly installed inside each of the object placement grooves. A through groove is penetrated and opened inside the rectangular square plate.

[0010] Preferably, the through groove is located inside the shock-absorbing spring. Each of the object placement grooves communicates with the through groove. Connecting columns are arranged inside the through groove. Each of the connecting columns is fixedly installed with the shock-absorbing spring. The size of the through groove is larger than that of the connecting column. Part of the connecting column is exposed below the rectangular square plate.

[0011] Preferably, a connecting rod is fixedly installed at the lower end of the connecting column. The connecting rod is fixedly installed with the high-voltage switch cabinet body. A damping ball head reset hinge is fixedly installed at the upper end of the rectangular square plate. A hinge connection head is arranged at the lower end of the damping ball head reset hinge.

[0012] Preferably, part of the hinge connection head extends into the through groove. The hinge connection head is fixedly installed with the connecting column. Limit grooves are opened inside both of the two chutes. Limit sliding strips are slidably installed inside each of the limit grooves. Each of the limit sliding strips is located on the peripheral side wall of the sliding rod. Each of the limit sliding strips is fixedly installed with the sliding rod.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] In the present invention, when switching devices such as circuit breakers and disconnectors inside the high-voltage switchgear body perform opening and closing operations, the moving contacts and static contacts inside will quickly separate, which will cause mechanical vibrations inside the high-voltage switchgear body and generate mechanical impacts. By setting a shock-absorbing structure, the high-voltage switchgear body is arranged on the floating electromagnet assembly. Utilizing the floating characteristics between the magnetic levitation assembly and the floating electromagnet assembly, the energy transmitted from mechanical vibrations to the electric control base and surrounding equipment can be effectively reduced. The floating state transforms the rigid connection between the high-voltage switchgear body and the electric control base into a flexible electromagnetic force connection, greatly reducing the transmission of vibrations between the high-voltage switchgear body and surrounding objects, thereby improving self-protection and avoiding damage to the high-voltage switchgear body caused by the mutual acting force of vibrations;

[0015] In the present invention, by arranging a reset air rod and a sliding rod inside the fixed column, when the high-voltage switchgear body floats and generates an upward radial force, the sliding rod can move in coordination with it. Once an accidental power failure occurs in the magnetic levitation assembly, the high-voltage switchgear body will lose its floating support and start to descend. At this time, the descending high-voltage switchgear body will drive the sliding rod to move downward together. Since the reset air rod and the sliding rod are interconnected, the downward movement of the sliding rod will cause the reset air rod to be compressed. By virtue of the buffering effect generated by the compression deformation of the reset air rod, the descending speed of the floating electromagnet assembly and the high-voltage switchgear body can be effectively slowed down, thus avoiding the two directly hitting the electric control base and greatly improving the protection performance of the entire device under accidental conditions;

[0016] In the present invention, due to the rigid connection relationship between the connecting rod and the connecting column, during the shaking process of the connecting column, the shock-absorbing spring, relying on its elastic properties, precisely performs adaptive stretching and compression actions according to the real-time shaking amplitude and direction of the connecting column. In this way, the impact force borne by the high-voltage switchgear body can be smoothly transmitted to the connecting column through the connecting rod, and during this transmission process, part of the impact force is absorbed and buffered by the shock-absorbing spring. At the same time, the shaking of the connecting column will drive the hinge connecting head to rotate at the special spherical socket structure inside the damping ball head reset hinge. With the damping characteristics of the damping ball head reset hinge, the hinge connecting head can apply a damping force opposite to the movement direction of the connecting column to the connecting column, thereby effectively suppressing the excessive shaking of the connecting column and prompting the connecting column to slowly and smoothly reset to the initial position after the vibration ends, ensuring that the entire structure can quickly return to a stable state after experiencing vibration impacts and reducing subsequent operation risks;

[0017] In the present invention, by setting a limiting groove, when the high-voltage switchgear body descends or ascends and drives the sliding rod to move, at this time the sliding rod will drive the limiting slide bar to slide inside the limiting groove, thereby providing additional stability and improving reliability;

[0018] In the present invention, by optimizing the structure and layout of the device, the shock-absorbing structure is integrally integrated on the electric control base, and there is a connecting column between the shock-absorbing structure and the main body of the high-voltage switch cabinet, so that the overall structure has a high degree of integration, which is conducive to installation on the existing basis and improves applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a three-dimensional structural schematic diagram of the present invention;

[0020] Figure 2 is a three-dimensional connection explosion structural schematic diagram of the present invention;

[0021] Figure 3 is an electric control base connection explosion structural schematic diagram of the present invention;

[0022] Figure 4 is a fixed column connection explosion structural schematic diagram of the present invention;

[0023] Figure 5 is a cross-sectional view of a rectangular square plate of the present invention;

[0024] Figure 6 is a cross-sectional view of a fixed column of the present invention;

[0025] Figure 7 is a rectangular square plate connection explosion structural schematic diagram of the present invention;

[0026] Figure 8 is a half cross-sectional view of a rectangular square plate of the present invention.

[0027] In the figure, the corresponding relationship between the component names and the drawing reference numerals is as follows: 11, electric control base; 12, groove; 13, magnetic levitation assembly; 14, suspension electromagnet assembly; 15, main body of high-voltage switch cabinet; 16, fixed column; 17, chute; 18, reset air rod; 19, sliding rod; 21, side column; 22, rectangular square plate; 23, storage groove; 24, shock-absorbing spring; 25, through groove; 26, connecting column; 27, connecting rod; 28, damping ball head reset hinge; 29, hinge connecting head; 31, limiting groove; 32, limiting slide bar. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] The following further describes in detail the embodiments of the present invention in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0029] Please refer to Figure 1 - Figure 8, the present invention provides a self-protecting shock-absorbing high-voltage switchgear, which includes an electric control base 11. A groove 12 is formed inside the electric control base 11, and a magnetic levitation component 13 is fixedly installed in the groove 12 in an embedded manner. A suspended electromagnet component 14 is arranged at the upper end of the magnetic levitation component 13. The suspended electromagnet component 14 is adapted to the magnetic levitation component 13. A high-voltage switchgear body 15 is fixedly installed at the upper end of the suspended electromagnet component 14;

[0030] Shock-absorbing structures are symmetrically fixedly installed at the upper end of the electric control base 11;

[0031] The shock-absorbing structure includes fixed columns 16. Both of the two fixed columns 16 are located on both sides of the magnetic levitation component 13. Sliding grooves 17 are formed inside both of the two fixed columns 16. When switch devices such as circuit breakers and disconnectors inside the high-voltage switchgear body 15 perform opening and closing operations, the moving contacts and static contacts inside will quickly separate, which will cause mechanical vibrations inside the high-voltage switchgear body 15 and generate mechanical impacts. By setting the shock-absorbing structure, the high-voltage switchgear body 15 is arranged on the suspended electromagnet component 14. Utilizing the suspension characteristics between the magnetic levitation component 13 and the suspended electromagnet component 14, the energy conducted from mechanical vibrations to the electric control base 11 and surrounding equipment can be effectively reduced. The suspended state changes the rigid connection between the high-voltage switchgear body 15 and the electric control base 11 into a flexible electromagnetic force connection, greatly reducing the transmission of vibrations between the high-voltage switchgear body 15 and surrounding objects, thereby improving the self-protection performance and avoiding damage to the high-voltage switchgear body 15 due to the mutual acting force of vibrations.

[0032] Reset air rods 18 are fixedly installed inside both of the two sliding grooves 17. Sliding rods 19 are fixedly installed on the output shafts of both of the two reset air rods 18. Both of the two sliding rods 19 are located inside the sliding grooves 17. Both of the two sliding rods 19 are slidably installed in the sliding grooves 17. Both of the two sliding rods 19 are partially exposed above the sliding grooves 17. Side columns 21 are fixedly installed on the side walls of both of the two sliding rods 19. A rectangular square plate 22 is fixedly installed between both of the two side columns 21. Both of the two side columns 21 are located above the high-voltage switchgear body 15. By arranging the reset air rods 18 and the sliding rods 19 inside the fixed columns 16, when the high-voltage switchgear body 15 floats and generates an upward radial force, the sliding rods 19 can move in coordination with it. Once an accidental power failure occurs in the magnetic levitation component 13, the high-voltage switchgear body 15 will lose the suspended support and start to descend. At this time, the descending high-voltage switchgear body 15 will drive the sliding rods 19 to move downward together. Since the reset air rods 18 and the sliding rods 19 are mutually related, the downward movement of the sliding rods 19 will cause the reset air rods 18 to be compressed. By virtue of the buffering effect generated by the compression deformation of the reset air rods 18, the descending speed of the suspended electromagnet component 14 and the high-voltage switchgear body 15 can be effectively slowed down, thereby avoiding the two directly hitting the electric control base 11 and greatly improving the protection performance of the entire device in case of an accident.

[0033] Inside the rectangular square plate 22, a storage groove 23 is symmetrically arranged. Inside each storage groove 23, a shock-absorbing spring 24 is fixedly installed. A through groove 25 is penetrated inside the rectangular square plate 22. The through groove 25 is located inside the shock-absorbing spring 24. Each storage groove 23 communicates with the through groove 25. A connecting column 26 is arranged inside the through groove 25. Each connecting column 26 is fixedly installed with the shock-absorbing spring 24. The size of the through groove 25 is larger than that of the connecting column 26. A part of the connecting column 26 is exposed below the rectangular square plate 22. A connecting rod 27 is fixedly installed at the lower end of the connecting column 26. The connecting rod 27 is fixedly installed with the high-voltage switch cabinet body 15. A damping ball head reset hinge 28 is fixedly installed at the upper end of the rectangular square plate 22. A hinge connection head 29 is arranged at the lower end of the damping ball head reset hinge 28. When the high-voltage switch cabinet body 15 vibrates, the vibration energy is transmitted to the connecting rod 27, causing the connecting rod 27 to shake. Due to the rigid connection relationship between the connecting rod 27 and the connecting column 26, during the shaking process of the connecting column 26, the shock-absorbing spring 24, relying on its elastic characteristics, accurately performs self-adaptive stretching and compression actions according to the real-time shaking amplitude and direction of the connecting column 26. In this way, the impact force borne by the high-voltage switch cabinet body 15 can be smoothly transmitted to the connecting column 26 through the connecting rod 27. During this transmission process, part of the impact force is absorbed and buffered by the shock-absorbing spring 24. At the same time, the shaking of the connecting column 26 will also drive the hinge connection head 29 to rotate at a special spherical socket structure inside the damping ball head reset hinge 28. With the damping characteristics of the damping ball head reset hinge 28, the hinge connection head 29 can apply a damping force opposite to the movement direction of the connecting column 26 to the connecting column 26, thereby effectively suppressing the excessive shaking of the connecting column 26 and prompting the connecting column 26 to slowly and smoothly return to the initial position after the vibration ends, ensuring that the entire structure can quickly return to a stable state after experiencing vibration impact and reducing subsequent operation risks.

[0034] A part of the hinge connection head 29 extends into the through groove 25. The hinge connection head 29 is fixedly installed with the connecting column 26. Limit grooves 31 are opened inside both sliding grooves 17. Inside each limit groove 31, a limit slide bar 32 is slidably installed. Each limit slide bar 32 is located on the peripheral side wall of the sliding rod 19. Each limit slide bar 32 is fixedly installed with the sliding rod 19. By setting the limit groove 31, when the high-voltage switch cabinet body 15 descends or ascends to drive the sliding rod 19 to move, at this time, the sliding rod 19 will drive the limit slide bar 32 to slide inside the limit groove 31, thereby providing additional stability and improving reliability.

[0035] Working principle:

[0036] First step, when the staff needs to perform a power-on operation on the high-voltage switchgear body 15, first, they need to find the control circuit or starting device associated with the magnetic levitation component 13 located on the electric control base 11. The staff operates the corresponding control component on the electric control base 11 to turn on the magnetic levitation component 13, enabling current to smoothly flow into the magnetic levitation component 13. After the magnetic levitation component 13 is powered on, the electromagnet inside it will generate a magnetic field with a specific polarity and intensity distribution. At the same time, the conductor in the suspended electromagnet component 14 is within the effective range of the magnetic field generated by the magnetic levitation component 13. Due to the electromagnetic induction phenomenon, an induced current will be generated in the conductor of the suspended electromagnet component 14. This induced current will in turn form a new magnetic field. According to the basic electromagnetic principle of "like poles repel, opposite poles attract", the magnetic field generated by the magnetic levitation component 13 interacts with the magnetic field generated by the induced current in the suspended electromagnet component 14. When the upward electromagnetic force generated by this interaction is sufficient to overcome the gravity of the high-voltage switchgear body 15 and the suspended electromagnet component 14, the suspended electromagnet component 14 will gradually float above the magnetic levitation component 13. Since the high-voltage switchgear body 15 is fixedly connected to the suspended electromagnet component 14, it will then drive the high-voltage switchgear body 15 to float together, providing a basic condition of suspended support for subsequent power-on operations and equipment operation;

[0037] Second step, when the high-voltage switchgear body 15 successfully floats, its floating action will generate an upward radial force. This radial force will be transmitted to the side column 21 and the sliding rod 19 through the connecting rod 27, thereby driving them to move upward together. Since the sliding rod 19 is fixedly connected to the limit slide bar 32, and the limit slide bar 32 is located in the chute 17 and the limit groove 31 inside the fixed column 16, when the sliding rod 19 moves, the limit slide bar 32 will inevitably slide in the chute 17 and the limit groove 31. At the same time, the output shaft of the reset air rod 18 will adaptively extend upward according to this mechanical change;

[0038] Step 3. Subsequently, the staff perform a power-on operation on the high-voltage switchgear body 15 according to the standard operating procedures. When the power-on process is started, various switching devices such as the circuit breaker and disconnector inside the high-voltage switchgear body 15 execute opening and closing actions according to the instructions. During this process, the moving contact and the static contact inside the switching device are quickly separated. This rapid separation action inevitably triggers a series of physical changes. Due to the strong action at the moment when the moving and static contacts are separated, the mechanical structure inside the high-voltage switchgear body 15 becomes unbalanced and disturbed, and then obvious mechanical vibrations are generated. These vibrations will further cause mechanical impacts. Since the high-voltage switchgear body 15 is suspended above the magnetic levitation assembly 13, the vibrations of the high-voltage switchgear body 15 at this time cause the connecting rod 27 to shake, and then drive the connecting column 26 to shake accordingly inside the through slot 25. Due to the shaking of the connecting column 26, the shock-absorbing spring 24 will stretch and compress adaptively according to its shaking state, so that the impact force received by the high-voltage switchgear body 15 is transmitted to the connecting column 26 through the connecting rod 27. At the same time, the shaking of the connecting column 26 will drive the hinge connection head 29 to rotate at the ball socket inside the damping ball head reset hinge 28. Thus, the hinge connection head 29 can generate a damping force on the connecting column 26 and prompt it to slowly reset;

[0039] Step 4. Subsequently, after the power-on of the high-voltage switchgear body 15 is completed, at this time, the staff can control the high-voltage switchgear body 15 to descend through the magnetic levitation assembly 13, so that the suspended electromagnet assembly 14 is attached to the electric control base 11. At the same time, the output shaft of the reset air rod 18 will reset to its original position.

[0040] The embodiments of the present invention are given for purposes of illustration and description, and are not exhaustive or limit the invention to the disclosed form. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and enable those of ordinary skill in the art to understand the present invention and design various embodiments with various modifications suitable for specific purposes.

Claims

1. A self-protecting shock-absorbing high-voltage switchgear, comprising an electric control base (11), a groove (12) is formed inside the electric control base (11), a magnetic levitation assembly (13) is fixedly installed inside the groove (12) in an embedded manner, a suspension electromagnet assembly (14) is arranged at the upper end of the magnetic levitation assembly (13), and the suspension electromagnet assembly (14) is adapted to the magnetic levitation assembly (13), characterized in that: The upper end of the suspension electromagnet assembly (14) is fixedly installed with the high-voltage switchgear body (15); The upper end of the electric control base (11) is symmetrically and fixedly installed with a shock absorption structure; The shock absorption structure includes fixed columns (16). Both of the two fixed columns (16) are located on both sides of the maglev assembly (13). Sliding grooves (17) are opened inside both of the two fixed columns (16). Reset air rods (18) are fixedly installed inside both of the two sliding grooves (17). Sliding rods (19) are fixedly installed on the output shafts of both of the two reset air rods (18). Both of the two sliding rods (19) are located inside the sliding grooves (17). Both of the two sliding rods (19) are slidably installed in the sliding grooves (17). Both of the two sliding rods (19) are partially exposed above the sliding grooves (17). Side columns (21) are fixedly installed on the side walls of both of the two sliding rods (19). A rectangular square plate (22) is fixedly installed between both of the two side columns (21); A damping ball head reset hinge (28) is fixedly installed at the upper end of the rectangular square plate (22). A hinge connection head (29) is provided at the lower end of the damping ball head reset hinge (28); Part of the hinge connection head (29) extends into the through groove (25). The hinge connection head (29) is fixedly installed with the connection column (26); Limit grooves (31) are opened inside both of the two sliding grooves (17). Limit sliding strips (32) are slidably installed inside each of the limit grooves (31); Each of the limit sliding strips (32) is located on the peripheral side walls of the sliding rod (19). Each of the limit sliding strips (32) is fixedly installed with the sliding rod (19).

2. The self-protective shock-absorbing high-voltage switchgear according to claim 1, characterized in that, Both of the two side columns (21) are located above the high-voltage switchgear body (15). Object placement grooves (23) are symmetrically opened inside the rectangular square plate (22).

3. The self-protective shock-absorbing high-voltage switch cabinet according to claim 2, characterized in that, A shock absorption spring (24) is fixedly installed inside each of the object placement grooves (23). A through groove (25) is penetrated inside the rectangular square plate (22).

4. The self-protective shock-absorbing high-voltage switch cabinet according to claim 3, wherein The through groove (25) is located inside the shock absorption spring (24). Each of the object placement grooves (23) communicates with the through groove (25). A connection column (26) is provided inside the through groove (25). Each of the connection columns (26) is fixedly installed with the shock absorption spring (24).

5. The self-protective shock-absorbing high-voltage switch cabinet according to claim 4, wherein The size of the through groove (25) is larger than the size of the connection column (26). Part of the connection column (26) is exposed below the rectangular square plate (22).

6. The self-protective shock-absorbing high-voltage switchgear according to claim 5, wherein, A connecting rod (27) is fixedly installed at the lower end of the connection column (26). The connecting rod (27) is fixedly installed with the high-voltage switchgear body (15).

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