Self-protection type damping high-voltage switch cabinet

Abstract

The invention provides a self-protection type damping high-voltage switch cabinet, and relates to the technical field of high-voltage switch cabinets, the self-protection type damping high-voltage switch cabinet comprises an electric control base, a groove is formed in the electric control base, and damping structures are symmetrically and fixedly mounted at the upper end part of the electric control base. When switching equipment such as a circuit breaker and an isolating switch in the high-voltage switch cabinet body is subjected to switching-on and switching-off operation, a moving contact and a static contact in the high-voltage switch cabinet body are quickly separated, and then mechanical vibration in the high-voltage switch cabinet body is caused; by utilizing the suspension characteristic between the magnetic suspension assembly and the suspension electromagnet assembly, energy conducted to the electric control base and peripheral equipment due to mechanical vibration can be effectively reduced, and rigid connection between the high-voltage switch cabinet body and the electric control base is converted into flexible electromagnetic force association due to the suspension state; and vibration transmission between the high-voltage switch cabinet body and surrounding objects is greatly reduced, so that the protection performance is improved.

Description

Technical Field

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

[0002] High-voltage switchgear is an electrical device used in power systems to receive and distribute electrical energy, control, protect and monitor circuits. It has the following main features and functions: it usually uses a metal casing with a certain mechanical strength and protection level, and can protect internal equipment from external environmental influences such as dust and moisture. For example, common cabinet materials include cold-rolled steel plates, which are processed through bending, welding and other processes. The protection level can reach IP4X and above, effectively preventing foreign objects from intrusion.

[0003] At present, the existing device (such as announcement number: CN106786002A) discloses a detachable high-voltage switch cabinet with a shock-absorbing function. The high-voltage switch cabinet can automatically monitor the temperature and humidity in the cabinet, issue an alarm in time, is safe and reliable, and has a good shock-absorbing effect, which can reduce the damage to the switch cabinet caused by impact, ground vibration, etc., has a low center of gravity, stable installation, simple disassembly, and convenient maintenance; However, in the process of implementing the above technical solution, it was found that there are at least the following technical problems: each time the high-voltage switchgear performs a power transmission operation, due to the working characteristics of the internal electrical components and circuit systems, a large amplitude vibration phenomenon will inevitably occur, and the shock absorption method adopted by the high-voltage switchgear mainly relies on shock-absorbing springs. However, since there is direct contact between the high-voltage switchgear and the shock-absorbing spring, when vibration occurs, although the shock-absorbing spring can absorb and buffer part of the vibration energy to a certain extent, due to its contact structural characteristics, it is impossible to fundamentally block the transmission path of the vibration energy between the two. This results in a considerable part of the vibration continuing to propagate to the surrounding structures or components during the shock absorption process, and thus it is impossible to further reduce the transmission range and intensity of the vibration. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a self-protection shock-absorbing high-voltage switch cabinet to solve the above problems.

[0005] A self-protection shock-absorbing high-voltage switchgear, comprising an electric control base, a groove is provided inside the electric control base, a magnetic suspension component is embedded and fixedly installed inside the groove, a suspension electromagnet component is provided at the upper end of the magnetic suspension component, the suspension electromagnet component is adapted to the magnetic suspension component, and a high-voltage switchgear body is fixedly installed at the upper end of the suspension electromagnet component; A shock absorbing structure is symmetrically fixedly installed on the upper end of the electric control base; The shock-absorbing structure includes a fixed column, and the two fixed columns are located on both sides of the magnetic levitation component. A slide groove is opened inside the two fixed columns, and a reset gas rod is fixedly installed inside the two slide grooves. A sliding rod is fixedly installed on the output shafts of the two reset gas rods. The two sliding rods are located inside the slide groove, and the two sliding rods are slidably installed with the slide groove. The two sliding rods are partially exposed above the slide groove, and side columns are fixedly installed on the side walls of the two sliding rods. A rectangular square plate is fixedly installed between the two side columns.

[0006] Preferably, the two side columns are located above the high-voltage switch cabinet body, the rectangular square plate is symmetrically provided with storage grooves, each of the storage grooves is fixedly installed with a shock-absorbing spring, and a through groove is opened through the rectangular square plate.

[0007] Preferably, the through slot is located on the inner side of the shock absorbing spring, each of the storage slots is communicated with the through slot, a connecting column is provided inside the through slot, each of the connecting column is fixedly installed with the shock absorbing spring, the size of the through slot is larger than the size of the connecting column, and the connecting column is partially exposed under the rectangular square plate.

[0008] Preferably, a connecting rod is fixedly installed on the lower end of the connecting column, and the connecting rod is fixedly installed on the high-voltage switch cabinet body. A damping ball head reset hinge is fixedly installed on the upper end of the rectangular square plate, and a hinge connector is provided at the lower end of the damping ball head reset hinge.

[0009] Preferably, the hinge connecting head partially extends into the through slot, the hinge connecting head is fixedly installed with the connecting column, limiting slots are provided inside the two sliding slots, a limiting slide is slidably installed inside each limiting slot, each limiting slide is located on the side walls around the sliding rod, and each limiting slide is fixedly installed with the sliding rod.

[0010] Compared with the prior art, the present invention has the following beneficial effects: In the present invention, when the circuit breaker, disconnector and other switchgear inside the high-voltage switch cabinet body are in the opening and closing operation, the moving contact and the static contact inside the high-voltage switch cabinet body will be quickly separated, which will cause mechanical vibration in the high-voltage switch cabinet body and generate mechanical shock. By setting a shock-absorbing structure, the high-voltage switch cabinet body is set on the suspension electromagnet assembly, and the suspension characteristics between the magnetic suspension assembly and the suspension electromagnet assembly are utilized, which can effectively reduce the energy transmitted to the electric control base and peripheral equipment due to mechanical vibration. The suspension state transforms the rigid connection between the high-voltage switch cabinet body and the electric control base into a flexible electromagnetic force connection, which greatly reduces the transmission of vibration between the high-voltage switch cabinet body and the surrounding objects, thereby improving self-protection and avoiding damage to the high-voltage switch cabinet body due to the mutual force of vibration. In the present invention, by arranging a reset gas rod and a sliding rod inside the fixed column, when the high-voltage switch cabinet body floats and generates an upward radial force, the sliding rod can move in coordination with it, and once the magnetic suspension assembly is accidentally powered off, the high-voltage switch cabinet body will lose its suspension support and begin to descend. At this time, the descending high-voltage switch cabinet body will drive the sliding rod to move downward together. Since the reset gas rod and the sliding rod are related to each other, the downward movement of the sliding rod will cause the reset gas rod to be compressed. With the buffering effect generated by the compression deformation of the reset gas rod, the descending speed of the suspended electromagnet assembly and the high-voltage switch cabinet body can be effectively slowed down, thereby preventing the two from directly hitting the electric control base, greatly improving the protection performance of the entire device under unexpected conditions; In the present invention, since there is a rigid connection between the connecting rod and the connecting column, during the shaking process of the connecting column, the shock-absorbing spring, by virtue of its elastic properties, accurately and adaptively stretches and compresses according to the real-time shaking amplitude and direction of the connecting column. In this way, the impact force borne by the high-voltage switch cabinet body can be smoothly transmitted to the connecting column through the connecting rod, and in 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 also drive the hinge connector to rotate at the special ball and socket structure inside the damping ball head reset hinge. With the damping characteristics of the damping ball head reset hinge, the hinge connector can apply a damping force in the opposite direction of its movement to the connecting column, thereby effectively suppressing the excessive shaking of the connecting column and prompting the connecting column to slowly and steadily return to its initial position after the vibration ends, thereby ensuring that the entire structure can quickly return to a stable state after experiencing a vibration impact, thereby reducing the risk of subsequent operation. In the present invention, by providing the limit groove, when the high-voltage switch cabinet body is lowered or raised to drive the sliding rod to move, the sliding rod will drive the limit slide bar to slide inside the limit groove, thereby providing additional stability and improving reliability; In the present invention, by optimizing the structure and layout of the device, the shock absorbing structure is integrated as a whole on the electric control base, and a connecting column is provided between the high-voltage switch cabinet body, so that the overall structure is highly integrated, which is conducive to installation on the existing basis and improves applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a three-dimensional structural schematic diagram of the present invention; Figure 2 It is a schematic diagram of the three-dimensional connection explosion structure of the present invention; Figure 3 It is a schematic diagram of the explosion structure of the electric control base connection of the present invention; Figure 4 It is a schematic diagram of the fixed column connection explosion structure of the present invention; Figure 5 is a cross-sectional view of a rectangular square plate of the present invention; Figure 6 is a cross-sectional view of a fixing column of the present invention; Figure 7 It is a schematic diagram of the explosion structure of the rectangular square plate connection of the present invention; Figure 8 It is a half-section view of a rectangular square plate of the present invention.

[0012] In the figure, the correspondence between the component names and the figure numbers is: 11, electric control base; 12, groove; 13, magnetic levitation assembly; 14, suspension electromagnet assembly; 15, high-voltage switch cabinet body; 16, fixed column; 17, slide groove; 18, reset gas rod; 19, sliding rod; 21, side column; 22, rectangular square plate; 23, storage slot; 24, shock-absorbing spring; 25, through groove; 26, connecting column; 27, connecting rod; 28, damping ball head reset hinge; 29, hinge connector; 31, limit groove; 32, limit slide bar. DETAILED DESCRIPTION

[0013] The following embodiments of the present invention are described in further detail in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0014] See also Figure 1 - Figure 8 The present invention provides a self-protection shock-absorbing high-voltage switchgear, comprising an electric control base 11, a groove 12 is provided inside the electric control base 11, a magnetic suspension component 13 is embedded and fixedly installed inside the groove 12, a suspension electromagnet component 14 is provided at the upper end of the magnetic suspension component 13, the suspension electromagnet component 14 is adapted to the magnetic suspension component 13, and a high-voltage switchgear body 15 is fixedly installed at the upper end of the suspension electromagnet component 14; A shock absorbing structure is symmetrically fixedly installed on the upper end of the electric control base 11; The shock-absorbing structure includes a fixed column 16, and the two fixed columns 16 are both located on both sides of the magnetic suspension component 13. A slide groove 17 is provided inside the two fixed columns 16. When the circuit breaker, disconnector and other switch equipment inside the high-voltage switch cabinet body 15 are in the opening and closing operation, the moving contact and the static contact inside will be quickly separated, which will cause mechanical vibration in the high-voltage switch cabinet body 15 and generate mechanical shock. By setting the shock-absorbing structure, the high-voltage switch cabinet body 15 is set on the suspension electromagnet component 14, and the suspension characteristics between the magnetic suspension component 13 and the suspension electromagnet component 14 are utilized, which can effectively reduce the energy transmitted to the electric control base 11 and peripheral equipment due to mechanical vibration. The suspension state transforms the rigid connection between the high-voltage switch cabinet body 15 and the electric control base 11 into a flexible electromagnetic force connection, which greatly reduces the transmission of vibration between the high-voltage switch cabinet body 15 and the surrounding objects, thereby improving self-protection and avoiding damage to the high-voltage switch cabinet body 15 due to the mutual force of vibration.

[0015] A reset gas rod 18 is fixedly installed inside the two slide grooves 17, and a sliding rod 19 is fixedly installed on the output shaft of the two reset gas rods 18. The two sliding rods 19 are located inside the slide groove 17, and the two sliding rods 19 are slidably installed with the slide groove 17. The two sliding rods 19 are partially exposed above the slide groove 17. Side columns 21 are fixedly installed on the side walls of the two sliding rods 19, and a rectangular square plate 22 is fixedly installed between the two side columns 21. The two side columns 21 are located above the high-voltage switch cabinet body 15. By arranging the reset gas rod 18 and the sliding rod 19 inside the fixed column 16, when the high-voltage switch cabinet body 15 floats and generates an upward radial force, the sliding rod 1 9 can move in coordination with it, and once the magnetic suspension assembly 13 is accidentally powered off, the high-voltage switch cabinet body 15 will lose its suspension support and begin to descend. At this time, the descending high-voltage switch cabinet body 15 will drive the sliding rod 19 to move downward together. Since the reset gas rod 18 and the sliding rod 19 are related to each other, the downward movement of the sliding rod 19 will cause the reset gas rod 18 to be compressed. The buffering effect generated by the compression deformation of the reset gas rod 18 can effectively slow down the descending speed of the suspension electromagnet assembly 14 and the high-voltage switch cabinet body 15, thereby preventing the two from directly hitting the electric control base 11, greatly improving the protection performance of the entire device under unexpected conditions.

[0016] The rectangular square plate 22 is symmetrically provided with storage grooves 23, each of which is fixedly provided with a shock absorbing spring 24. A through groove 25 is provided through the rectangular square plate 22, the through groove 25 is located on the inner side of the shock absorbing spring 24, each of which is communicated with the through groove 25, a connecting column 26 is provided inside the through groove 25, each of which is fixedly provided with a shock absorbing spring 24, the size of the through groove 25 is larger than the size of the connecting column 26, and the connecting column 26 is partially exposed below the rectangular square plate 22, a connecting rod 27 is fixedly provided at the lower end of the connecting column 26, and the connecting rod 27 is fixedly provided with the high-voltage switch cabinet body 15, a damping ball head reset hinge 28 is fixedly provided at the upper end of the rectangular square plate 22, and a hinge connector 29 is provided 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, and since the connecting rod 27 is rigidly connected to the connecting column 26, when the connecting rod 27 is connected, the connecting rod 27 is fixedly provided with a hinge connector 29. During the shaking of the connecting column 26, the shock-absorbing spring 24, with its elastic properties, accurately and adaptively stretches and compresses 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, and in 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 connector 29 to rotate at the special ball and socket structure inside the damping ball head reset hinge 28. With the help of the damping characteristics of the damping ball head reset hinge 28, the hinge connector 29 can apply a damping force to the connecting column 26 in the opposite direction of its movement, thereby effectively suppressing the excessive shaking of the connecting column 26, and prompting the connecting column 26 to slowly and smoothly return to its initial position after the vibration ends, ensuring that the entire structure can quickly return to a stable state after experiencing a vibration impact, thereby reducing subsequent operation risks.

[0017] The hinge connector 29 partially extends into the through slot 25, and the hinge connector 29 is fixedly installed with the connecting column 26. Limiting slots 31 are provided inside the two slide slots 17, and a limiting slide bar 32 is slidably installed inside each limiting slot 31. Each limiting slide bar 32 is located on the side walls around the sliding rod 19, and each limiting slide bar 32 is fixedly installed with the sliding rod 19. By setting the limiting slots 31, when the high-voltage switch cabinet body 15 descends or ascends to drive the sliding rod 19 to move, the sliding rod 19 will drive the limiting slide bar 32 to slide inside the limiting slot 31, thereby providing additional stability and improving reliability.

[0018] Working principle: In the first step, when the staff needs to perform power supply operation on the high-voltage switch cabinet body 15, they must first find the control circuit or starting device associated with the magnetic suspension component 13 on the electric control base 11. The staff turns on the magnetic suspension component 13 by operating the corresponding control component on the electric control base 11, so that the current can smoothly flow into the magnetic suspension component 13. After the magnetic suspension component 13 is energized, the electromagnet inside it will generate a magnetic field with a specific polarity and intensity distribution. At the same time, the conductor in the suspension electromagnet component 14 is within the effective range of the magnetic field generated by the magnetic suspension component 13. Due to the electromagnetic induction phenomenon, an induction will be generated in the conductor of the suspension electromagnet component 14. The induced current will form a new magnetic field. According to the basic electromagnetic principle of "like repels like, opposites attract", the magnetic field generated by the magnetic suspension component 13 interacts with the magnetic field generated by the induced current of the suspension electromagnet component 14. When the upward electromagnetic force generated by this interaction is sufficient to overcome the gravity of the high-voltage switch cabinet body 15 and the suspension electromagnet component 14, the suspension electromagnet component 14 will gradually float above the magnetic suspension component 13. Since the high-voltage switch cabinet body 15 is fixedly connected to the suspension electromagnet component 14, the high-voltage switch cabinet body 15 is further driven to float together, providing the basic conditions for suspension support for subsequent power transmission operations and equipment operation. In the second step, when the high-voltage switch cabinet body 15 is successfully floated, its floating action will generate an upward radial force, which 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 and the limit slide 32 are in a fixed connection state, and the limit slide 32 is located in the slide groove 17 and the limit groove 31 inside the fixed column 16, when the sliding rod 19 moves, the limit slide 32 will inevitably slide in the slide groove 17 and the limit groove 31. At the same time, the output shaft of the reset gas rod 18 will adaptively extend upward according to this mechanical change; In the third step, the staff then carried out the power supply operation on the high-voltage switch cabinet body 15 according to the standard operating procedures. When the power supply process was started, the circuit breakers, disconnectors and other switch devices inside the high-voltage switch cabinet body 15 performed the opening and closing actions according to the instructions. In this process, the moving contacts and static contacts inside the switch devices were quickly separated. This rapid separation action inevitably triggered a series of physical changes. Due to the strong effect of the separation of the moving and static contacts, the mechanical structure inside the high-voltage switch cabinet body 15 was unbalanced and disturbed, which in turn produced more obvious mechanical vibrations. This vibration would further cause mechanical shocks. The high-voltage switch cabinet body 15 is suspended above the magnetic suspension assembly 13. At this time, the vibration of the high-voltage switch cabinet body 15 causes the connecting rod 27 to shake, thereby driving the connecting column 26 to shake inside the through groove 25. Due to the shaking of the connecting column 26, the shock-absorbing spring 24 will be adaptively stretched and compressed according to its shaking state, so that the impact force on the high-voltage switch cabinet 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 connector 29 to rotate at the ball socket inside the damping ball head reset hinge 28, so that the hinge connector 29 can generate a damping force on the connecting column 26 and cause it to slowly reset; The fourth step is that after the high-voltage switch cabinet body 15 is powered, the staff can control the high-voltage switch cabinet body 15 to descend through the magnetic suspension assembly 13, so that the suspension electromagnet assembly 14 fits with the electric control base 11, and at the same time, the output shaft of the reset gas rod 18 will be reset to its original position.

[0019] The embodiments of the present invention are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A self-protection shock-absorbing high-voltage switch cabinet, comprising an electric control base (11), wherein a groove (12) is provided inside the electric control base (11), wherein a magnetic suspension component (13) is embedded and fixedly installed inside the groove (12), wherein a suspension electromagnet component (14) is provided at the upper end of the magnetic suspension component (13), wherein the suspension electromagnet component (14) is adapted to the magnetic suspension component (13), and wherein: A high-voltage switch cabinet body (15) is fixedly mounted on the upper end of the suspension electromagnet assembly (14); A shock absorbing structure is symmetrically fixedly mounted on the upper end of the electric control base (11); The shock absorbing structure comprises a fixed column (16), wherein the two fixed columns (16) are both located on both sides of the magnetic suspension assembly (13), wherein a slide groove (17) is provided inside the two fixed columns (16), wherein a reset gas rod (18) is fixedly installed inside the two slide grooves (17), wherein a sliding rod (19) is fixedly installed on the output shaft of the two reset gas rods (18), wherein the two sliding rods (19) are both located inside the slide groove (17), wherein the two sliding rods (19) are slidably installed with the slide groove (17), wherein the two sliding rods (19) are partially exposed above the slide groove (17), wherein side columns (21) are fixedly installed on the side walls of the two sliding rods (19), and wherein a rectangular square plate (22) is fixedly installed between the two side columns (21).

2. A self-protection shock-absorbing high-voltage switchgear as claimed in claim 1, characterized in that: The two side columns (21) are both located above the high-voltage switch cabinet body (15), and storage grooves (23) are symmetrically provided inside the rectangular square plate (22).

3. A self-protection shock-absorbing high-voltage switchgear as claimed in claim 2, characterized in that: A shock absorbing spring (24) is fixedly installed inside each storage slot (23), and a through slot (25) is provided through the inside of the rectangular square plate (22).

4. A self-protection shock-absorbing high-voltage switchgear as claimed in claim 3, characterized in that: The through slot (25) is located inside the shock absorbing spring (24), each of the storage slots (23) is in communication with the through slot (25), a connecting column (26) is provided inside the through slot (25), and each of the connecting columns (26) is fixedly mounted to the shock absorbing spring (24).

5. A self-protection shock-absorbing high-voltage switchgear as claimed in claim 4, characterized in that: The size of the through slot (25) is larger than the size of the connecting column (26), and the connecting column (26) is partially exposed below the rectangular plate (22).

6. A self-protection shock-absorbing high-voltage switchgear as claimed in claim 5, characterized in that: A connecting rod (27) is fixedly mounted on the lower end of the connecting column (26), and the connecting rod (27) is fixedly mounted on the high-voltage switch cabinet body (15).

7. A self-protection shock-absorbing high-voltage switchgear as claimed in claim 6, characterized in that: A damping ball head reset hinge (28) is fixedly mounted on the upper end of the rectangular square plate (22), and a hinge connector (29) is provided on the lower end of the damping ball head reset hinge (28).

8. A self-protection shock-absorbing high-voltage switchgear as claimed in claim 7, characterized in that: The hinge connection head (29) partially extends into the interior of the through slot (25), and the hinge connection head (29) is fixedly mounted on the connection column (26).

9. A self-protection shock-absorbing high-voltage switchgear as claimed in claim 8, characterized in that: A limiting groove (31) is provided inside each of the two sliding grooves (17), and a limiting sliding bar (32) is slidably installed inside each of the limiting grooves (31).

10. A self-protection shock-absorbing high-voltage switchgear as claimed in claim 9, characterized in that: Each of the limiting slide bars (32) is located on the side walls surrounding the sliding rod (19), and each of the limiting slide bars (32) is fixedly mounted on the sliding rod (19).

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