Switch cabinet safety protection device and method based on intelligent broken line early warning analysis

Abstract

The invention relates to the technical field of switch cabinets, in particular to a switch cabinet safety protection device based on intelligent broken line early warning analysis and a method thereof.The switch cabinet safety protection device comprises a cabinet body, heat dissipation assemblies used for heat dissipation are arranged on the left side wall and the right side wall of the cabinet body, and a pressure relief protection assembly used for short-circuit pressure relief protection is arranged at the position, close to the top, in the cabinet body; the pressure relief protection assembly comprises a pressure relief bin structure fixed to the rear side of the top face of the cabinet body, a baffle structure used for communicating the cabinet body with the pressure relief bin structure, a jacking structure used for driving the baffle structure to be opened, and two window closing structures used for closing the heat dissipation assembly. According to the protection device, by arranging the pressure relief protection assembly, when electric arcs occur in the switch cabinet and gas expansion is generated, pressure relief is carried out, meanwhile, the heat dissipation window is closed, and it is avoided that expanded gas escapes from the heat dissipation window to affect surrounding electric appliances or burn workers; in addition, by arranging the pressure relief bin structure, the expansion gas entering the bin body is cooled, and the risk is further reduced.

Description

Technical Field

[0001] The present invention belongs to the technical field of switch cabinets, and specifically relates to a switch cabinet safety protection device and method based on intelligent disconnection warning analysis. Background Art

[0002] Switch cabinet is an important device in the circuit system for controlling, protecting or monitoring the entire circuit. Existing switch cabinets are generally equipped with intelligent disconnection warning analysis components to control the entire circuit.

[0003] For example, the invention patent with the authorization announcement number CN118920291A in the field of switch cabinet technology discloses a switch cabinet with a safety protection mechanism, including a mounting seat, the top of which is fixedly connected to a switch cabinet body including a cabinet door, and both sides of the switch cabinet body are symmetrically fixedly connected to C-shaped isolation plates, and multiple groups of parallel plastic sheets are arranged on the opposite side surfaces of the C-shaped isolation plates. This invention generates internal pressure while breaking the mechanism displacement, and sprays the internally filled fire extinguishing dry powder into the interior of the switch cabinet body, effectively preventing and extinguishing open fires and protecting internal electronic components.

[0004] Combining the above cases and actual conditions, we found the following problems: During the use of the switch cabinet, if an electrical component fails or a circuit short circuit occurs, an arc is likely to occur inside the switch cabinet, causing the surrounding gas to expand instantly due to heat. Therefore, it is necessary to relieve the pressure inside the switch cabinet. Existing switch cabinets generally require heat dissipation windows. When relieving pressure, the switch cabinet cannot close the heat dissipation windows at the same time, causing high-temperature and high-pressure expanding gases to easily escape from the heat dissipation windows, causing damage to surrounding electrical appliances or injuries to nearby workers. Summary of the invention

[0005] The object of the present invention is to provide a switch cabinet safety protection device and method based on intelligent disconnection warning analysis to solve the above-mentioned problems in the prior art.

[0006] To achieve the above-mentioned object, the present invention provides a switch cabinet safety protection device based on intelligent disconnection warning analysis, comprising a cabinet, the left and right side walls of the cabinet are provided with heat dissipation components for heat dissipation, the cabinet is provided with a pressure relief protection component for short-circuit pressure relief protection near the top, the pressure relief protection component comprises a pressure relief bin structure fixed to the rear side of the top surface of the cabinet, a baffle structure for connecting the cabinet and the pressure relief bin structure, an upper top structure for driving the baffle structure to open, and two window closing structures for closing the heat dissipation component;

[0007] A pressure relief channel is provided in the middle of the top surface of the cabinet, the baffle structure includes a baffle arranged in the pressure relief channel and baffle shafts arranged horizontally on the left and right sides, the baffle shaft runs through the center of the baffle and the two are fixedly connected, shaft grooves are symmetrically provided on the left and right sides of the inner wall of the pressure relief channel, both ends of the baffle shaft extend into the corresponding shaft grooves, a spring spring is provided between the outer wall of the baffle shaft and the inner wall of the shaft groove, a convex plate is provided on the axial surface of the baffle shaft, and a clamping plate for blocking the convex plate is fixed on the top of the pressure relief channel;

[0008] The upper structure includes two upper mechanisms symmetrically arranged on the left and right sides of the pressure relief channel and a transmission mechanism arranged between the two upper mechanisms, the upper mechanism includes a cover plate, a top rod whose bottom end is fixed to the top surface of the cover plate, and a wedge block fixed to the top end of the top rod, the transmission mechanism includes a cross bar arranged on the rear side of the pressure relief channel and two abutting rods vertically fixed to the two ends of the cross bar, the front end of the abutting rod abuts against the corresponding inclined surface of the wedge block, connecting rods are symmetrically arranged on the left and right sides of the front side of the middle section of the wedge block, and the same limiting plate is fixed to the front ends of the two connecting rods.

[0009] In the technical solution of the present invention, a second mounting groove for the transmission mechanism to slide back and forth is provided on the top surface of the cabinet, a limiting plate groove for the limiting plate to slide back and forth is provided on the front side of the middle part of the second mounting groove, the limiting plate groove is located below the baffle, and two sliding cavities for the connecting rod to slide back and forth are provided between the limiting plate groove and the second mounting groove.

[0010] In the technical solution of the present invention, a flange plate is fixed to the front end of the outer wall of the connecting rod, and a spring is provided between the flange plate and the corresponding rear side wall of the sliding cavity.

[0011] In the technical solution of the present invention, an upper top channel is provided at the top of the cabinet body corresponding to the position of the top rod, the top end of the top rod is located in the corresponding upper top channel and the two are slidably connected, and a limit block is symmetrically provided on the top end of the top rod, and the limit block is embedded in the inner side wall corresponding to the upper top channel and the two are slidably connected.

[0012] In the technical solution of the present invention, the top surface of the cabinet is symmetrically provided with first mounting grooves on the left and right sides, and the two window closing structures are arranged in the first mounting grooves on the corresponding sides. The window closing structure includes a pull cable, a first roller and a second roller arranged in the first mounting groove, and a rotating rod arranged on the rear side of the cabinet.

[0013] In the technical solution of the present invention, the height of the first roller is lower than that of the second roller, one end of the cable is fixed to the outer side wall of the limit block on the outer side of the top rod on the corresponding side, and the other end passes through the lower side of the first roller on the corresponding side and is fixed to the side wall of the second roller on the corresponding side, a first worm is coaxially fixed to the rear end of the second roller, the rotating rod is vertically arranged on the inner side of the corresponding second roller, and a first worm wheel meshing with the first worm is coaxially fixed to the top end of the rotating rod.

[0014] In the technical solution of the present invention, heat dissipation windows are provided on the left and right side walls of the cabinet, and the heat dissipation component is arranged in the heat dissipation windows. The heat dissipation component includes a plurality of regularly arranged fan blades and a fan blade shaft passing through the fan blades front and back, and the fan blades are fixedly connected to the corresponding fan blade shafts, and a second worm gear is coaxially fixed to the rear end of the fan blade shaft, and a plurality of second worms corresponding to the plurality of fan blade shafts are coaxially fixed on the rotating rod, and the second worm gear is meshed with the second worm gear.

[0015] In the technical solution of the present invention, the pressure relief chamber structure includes a chamber body and a number of air pipe mechanisms regularly arranged in the chamber body, a gas chamber for storing inert gas is fixed above the chamber body, a pressing rod is horizontally fixed on the rear side of the middle of the cross bar, a pressing rod groove corresponding to the pressing rod is provided on the rear side groove wall of the second mounting groove, and a button for controlling the air pump in the gas chamber is provided on the rear groove wall of the pressing rod groove.

[0016] In the technical solution of the present invention, the air tube mechanism includes an inner tube whose top end passes through the top surface of the bin body and is connected to the inside of the gas bin, and an outer tube that is rotatably connected to the outside of the inner tube, and spiral leaves are fixed to the outer wall of the outer tube. A number of regularly distributed air holes are provided on the walls of the inner tube and the outer tube, and the positions of the air holes on the inner tube and the air holes on the outer tube correspond to each other.

[0017] On the other hand, the present invention also provides a switch cabinet safety protection method based on intelligent disconnection warning analysis, comprising the following steps:

[0018] S1. When an abnormality occurs in the electrical components inside the switch cabinet, such as an arc or a short circuit, the gas inside the switch cabinet expands rapidly and pushes up the cover plate, which in turn drives the top rod and the wedge block to slide upward. The sliding wedge block pushes the abutment rod to slide backward, driving the cross bar to slide backward;

[0019] S2, the sliding cross bar pulls the limiting plate back into the limiting plate slot through the connecting rod, and at the same time, the pressing rod presses the button to turn on the air pump in the air chamber. At this time, the baffle plate is driven to rotate clockwise under the elastic force of the spring, and under the restriction of the convex plate and the clamping plate, the baffle plate is in a vertical state and remains stationary;

[0020] S3, when the top rod slides up, the limit block will pull the cable toward the middle, and then pull the second roller to rotate clockwise through the first roller, and drive the rotating rod to rotate through the transmission of the first worm and the first worm wheel, and then drive the fan blades to rotate and close through the second worm and the second worm wheel;

[0021] S4. After the baffle is rotated and opened, the high-temperature and high-pressure expansion gas enters the warehouse body through the pressure relief channel to relieve pressure, and blows the spiral blades to drive the outer tube to rotate. When the positions of the air holes on the outer tube and the inner tube coincide, the inert gas in the gas warehouse will enter the warehouse body to cool the expansion gas.

[0022] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0023] 1. In the present invention, by providing a pressure relief protection component, when an arc is generated inside the switch cabinet, the gas inside the switch cabinet expands rapidly and pushes the top cover plate, thereby driving the top rod and the wedge block to slide upward, pushing the abutment rod to slide backward, and driving the cross bar to slide backward, and then pulling the limiting plate back into the limiting plate groove through the connecting rod. At this time, under the elastic force of the clockwork spring, the baffle is driven to rotate clockwise to open the pressure relief channel for pressure relief, thereby ensuring the safe use of the switch cabinet.

[0024] 2. In the present invention, by setting a window closing structure, when the top rod slides up, the limit block will pull the cable toward the middle, and then pull the second roller to rotate clockwise through the first roller, and drive the rotating rod to rotate through the transmission of the first worm and the first worm wheel, and then drive the fan blades to rotate and close through the second worm and the second worm wheel, so as to prevent the high-temperature and high-pressure expanding gas from escaping from the heat dissipation window, thereby protecting the safety of surrounding electrical appliances and nearby personnel.

[0025] 3. In the present invention, by setting a pressure relief chamber structure, when the baffle rotates clockwise to open, the pressing rod presses the button to open the air pump in the air chamber, and the expanded gas enters the chamber body through the pressure relief channel to relieve pressure, and blows the spiral blades to drive the outer tube to rotate. When the positions of the air holes on the outer tube and the inner tube coincide, the inert gas in the air chamber will enter the chamber body to cool the expanded gas. At the same time, the airflow generated by the rotation of the spiral blades will accelerate the mixing of the expanded gas and the inert gas, further accelerating the cooling and protecting the safety cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 It is a schematic diagram of a cabinet of the present invention;

[0028] Figure 3 It is a top cross-sectional view of the cabinet in the present invention;

[0029] Figure 4 For the present invention Figure 3Enlarged view of point A in the middle;

[0030] Figure 5 It is an exploded view of the pressure relief protection component in the present invention;

[0031] Figure 6 Another cross-sectional view of the top of the cabinet in the present invention;

[0032] Figure 7 It is a schematic diagram of the upper roof structure in the present invention;

[0033] Figure 8 It is a schematic diagram of the window closing structure in the present invention;

[0034] Fig. 9 This is a schematic diagram of the interior of the warehouse in the present invention;

[0035] Fig.10 It is an exploded view of the trachea mechanism in the present invention;

[0036] Description of reference numerals:

[0037] 1. Cabinet; 11. Heat dissipation window; 12. Pressure relief channel; 121. Card plate; 13. Axis slot; 14. First mounting slot; 15. Limiting plate slot; 16. Sliding cavity; 17. Spring; 18. Second mounting slot; 181. Press rod slot; 19. Top channel;

[0038] 2. heat dissipation component; 21. fan blade; 22. fan blade shaft; 23. second worm gear;

[0039] 3. Pressure relief protection assembly; 31. Baffle structure; 311. Baffle; 312. Baffle shaft; 313. Spring spring; 314. Convex plate; 32. Top structure; 321. Top mechanism; 3211. Cover plate; 3212. Top rod; 3213. Wedge block; 3214. Stop block; 322. Transmission mechanism; 3221. Abutment rod; 3222. Crossbar; 3223. Connecting rod; 3224. Limiting plate; 32 25. flange plate; 3226. pressing rod; 33. window closing structure; 331. cable; 332. first roller; 333. second roller; 3331. first worm; 334. rotating rod; 3341. first worm wheel; 3342. second worm; 34. pressure relief chamber structure; 341. chamber body; 342. air pipe mechanism; 3421. inner tube; 3422. outer tube; 3423. spiral blade; 3424. air hole;

[0040] 4. Gas chamber;

[0041] 5. Button. DETAILED DESCRIPTION

[0042] The specific implementation modes of the present invention are described in detail below in conjunction with the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific implementation modes.

[0043] Unless explicitly stated otherwise, throughout the specification, the term “comprise” or variations thereof such as “include” or “comprising” will be understood as including the stated elements or components but not excluding other elements or components.

[0044] Reference Figure 1-Figure 10 As shown, this embodiment provides a technical solution:

[0045] A switch cabinet safety protection device based on intelligent disconnection warning analysis includes a cabinet body 1, and the left and right side walls of the cabinet body 1 are provided with heat dissipation components 2 for heat dissipation. The heat dissipation components 2 are used to dissipate heat for the electrical components inside the switch cabinet. A pressure relief protection component 3 for short-circuit pressure relief protection is provided near the top of the cabinet body 1. The pressure relief protection component 3 includes a pressure relief chamber structure 34 fixed to the rear side of the top surface of the cabinet body 1, a baffle structure 31 for connecting the cabinet body 1 and the pressure relief chamber structure 34, an upper top structure 32 for driving the baffle structure 31 to open, and two window closing structures 33 for closing the heat dissipation component 2. By setting the pressure relief protection component 3, when a short circuit occurs inside the switch cabinet, components are damaged and an arc is generated, causing the gas inside the switch cabinet to expand due to heat, the pressure is relieved to prevent the high-temperature and high-pressure expanding gas from being unable to be dispersed in time, resulting in an explosion inside the switch cabinet;

[0046] A pressure relief channel 12 is provided in the middle of the top surface of the cabinet 1. The baffle structure 31 includes a baffle 311 provided in the pressure relief channel 12 and baffle shafts 312 provided horizontally on the left and right sides. The baffle shaft 312 runs through the center of the baffle 311 and the two are fixedly connected. Shaft grooves 13 are symmetrically provided on the left and right sides of the inner wall of the pressure relief channel 12. Both ends of the baffle shaft 312 extend into the corresponding shaft grooves 13. A spring 313 is provided between the outer wall of the baffle shaft 312 and the inner wall of the shaft groove 13. The spring 313 provides The baffle shaft 312 has a clockwise torque, and a convex plate 314 is provided on the axial surface of the baffle shaft 312. A clamping plate 121 for blocking the convex plate 314 is fixed on the top of the pressure relief channel 12. The convex plate 314 is horizontally arranged and located in front of the clamping plate 121. By arranging the convex plate 314 and the clamping plate 121, it is ensured that when the pressure relief channel 12 is opened, the baffle 311 is in a vertical state, so as to avoid the baffle 311 from tilting and reducing the pressure relief cross-sectional area of ​​the pressure relief channel 12, thereby affecting the pressure relief of the expansion gas.

[0047] The top structure 32 includes two top mechanisms 321 symmetrically arranged on the left and right sides of the pressure relief channel 12 and a transmission mechanism 322 arranged between the two top mechanisms 321. The top mechanism 321 includes a cover plate 3211, a top rod 3212 whose bottom end is fixed to the top surface of the cover plate 3211, and a wedge block 3213 fixed to the top of the top rod 3212. The transmission mechanism 322 includes a cross bar 3222 arranged on the rear side of the pressure relief channel 12 and two abutment rods 3221 vertically fixed to both ends of the cross bar 3222. The front end of the abutment rod 3221 abuts against the corresponding inclined surface of the wedge block 3213, and the abutment rod 3221 is in contact with the inclined surface of the wedge block 3213. The wedge block 3213 is shaped like a closed inclined plane, and connecting rods 3223 are symmetrically arranged on the left and right sides of the front middle section of the wedge block 3213. The same limiting plate 3224 is fixed to the front ends of the two connecting rods 3223. When the gas inside the light-opening cabinet expands, it will push up the top cover plate 3211 and drive the top rod 3212 and the wedge block 3213 to slide up. The sliding wedge block 3213 will push the abutment rod 3221 to slide backward and drive the cross bar 3222 to slide backward. The sliding cross bar 3222 pulls the limiting plate 3224 back into the limiting plate groove 15 through the connecting rod 3223. At this time, the restriction of the baffle plate 311 can be released, and the baffle plate 311 can be rotated 90° to open the pressure relief channel 12.

[0048] Furthermore, if Figure 1-Figure 6 As shown, the top surface of the cabinet body 1 is provided with a second mounting groove 18 for the transmission mechanism 322 to slide forward and backward, and a limiting plate groove 15 is provided on the front side of the middle part of the second mounting groove 18 for the limiting plate 3224 to slide forward and backward. The limiting plate groove 15 is located below the baffle 311, and two sliding cavities 16 for the connecting rod 3223 to slide forward and backward are provided between the limiting plate groove 15 and the second mounting groove 18. A flange plate 3225 is fixed to the front end of the outer wall of the connecting rod 3223, and a spring 17 is provided between the flange plate 3225 and the rear side wall of the corresponding sliding cavity 16. By arranging the spring 17 and the flange plate 3225, when the switch cabinet is in normal use, the spring 17 gives the flange plate 3225 a forward thrust, so that the limiting plate 3224 extends out of the limiting plate groove 15, blocking the baffle 311 from rotating clockwise, thereby ensuring the normal use of the switch cabinet.

[0049] In addition, if Figure 6 As shown, an upper top channel 19 is provided at the position corresponding to the position of the top rod 3212 at the top of the cabinet 1, the top end of the top rod 3212 is located in the corresponding upper top channel 19 and the two are slidably connected, and a limit block 3214 is symmetrically provided on the top of the top rod 3212, the limit block 3214 is embedded in the inner wall of the corresponding upper top channel 19 and the two are slidably connected. By setting the limit block 3214, the top rod 3212 is prevented from rotating when sliding up, which makes the entire upper top structure 32 unable to be used normally. The cover plate 3211 is in the shape of an inverted umbrella, which increases the force-bearing area and ensures that the cover plate 3211 is subjected to sufficient upper top pressure when the gas expands due to heat.

[0050] Furthermore, if Figure 7-Figure 8 As shown, the top surface of the cabinet body 1 is symmetrically provided with first mounting grooves 14 on the left and right sides, and two window closing structures 33 are arranged in the first mounting grooves 14 on the corresponding sides. The window closing structure 33 includes a pull cable 331, a first roller 332 and a second roller 333 arranged in the first mounting groove 14, and a rotating rod 334 arranged on the rear side of the cabinet body 1. By setting the window closing structure 33, it is ensured that the heat dissipation component 2 is closed while the pressure is released, so as to prevent the expanded gas from being directly released from the heat dissipation component 2 and affecting the electrical appliances around the switch cabinet or burning nearby personnel.

[0051] The first and second worm gears 334 are provided at the rear end of the second roller 333 so as to prevent the first and second worm gears 334 from rotating.

[0052] Specifically, heat dissipation windows 11 are provided on the left and right side walls of the cabinet 1, and the heat dissipation component 2 is arranged in the heat dissipation window 11. The heat dissipation component 2 includes a plurality of regularly arranged fan blades 21 and a fan blade shaft 22 that penetrates the fan blades 21 front and back. The fan blades 21 are fixedly connected to the corresponding fan blade shaft 22, and a second worm gear 23 is coaxially fixed to the rear end of the fan blade shaft 22. A plurality of second worm gears 3342 corresponding to the plurality of fan blade shafts 22 are coaxially fixed on the rotating rod 334, and the second worm gear 3342 is meshed with the second worm gear 23. When the rotating rod 334 rotates, the fan blades 21 are driven to rotate and close through the second worm gear 3342 and the second worm gear 23. It should be noted that after the fan blades 21 rotate and close, they are adapted to the area of ​​the heat dissipation window 11 to prevent the expansion gas from leaking from the gap between the fan blades 21 and the heat dissipation window 11.

[0053] In addition, if Figure 1 , Figure 6 , Fig. 9 and Fig.10As shown, the pressure relief chamber structure 34 includes a chamber body 341 and a plurality of air pipe mechanisms 342 regularly arranged in the chamber body 341, an air chamber 4 for storing inert gas is fixed above the chamber body 341, a pressing rod 3226 is horizontally fixed on the rear side of the middle part of the cross bar 3222, a pressing rod groove 181 corresponding to the pressing rod 3226 is provided on the rear groove wall of the second mounting groove 18, and a button 5 for controlling the air pump in the air chamber 4 is provided on the rear groove wall of the pressing rod groove 181, inert gas is stored in the air chamber 4, when the cross bar 3222 slides backward to drive the baffle 311 to open, the pressing rod 3226 will press the button 5 to open the air pump in the air chamber 4. It should be noted that vacuuming and inflating by an air pump is a prior art and will not be elaborated here.

[0054] Furthermore, the air pipe mechanism 342 includes an inner tube 3421 whose top end passes through the top surface of the warehouse body 341 and is connected to the inside of the gas warehouse 4, and an outer tube 3422 that is sleeved on the outside of the inner tube 3421 and is rotatably connected. A spiral blade 3423 is fixed to the outer wall of the outer tube 3422. A number of regularly distributed air holes 3424 are provided on the walls of the inner tube 3421 and the outer tube 3422. The positions of the air holes 3424 on the inner tube 3421 and the air holes 3424 on the outer tube 3422 correspond to each other. The high-temperature and high-pressure expansion gas enters the warehouse body 341 through the pressure relief channel 12, which will blow the spiral blade 3423 to drive the outer tube 3422 to rotate. When the positions of the air holes 3424 on the outer tube 3422 and the inner tube 3421 coincide, the inert gas in the gas warehouse 4 will enter the warehouse body 341 to cool the expansion gas. The airflow generated by the rotation of the spiral blade 3423 will also accelerate the mixing of the inert gas and the expansion gas, thereby accelerating the cooling.

[0055] The switch cabinet safety protection method based on intelligent disconnection warning analysis in the present invention comprises the following steps:

[0056] S1. When an abnormality occurs in the electrical components inside the switch cabinet, such as an arc or a short circuit, the gas inside the switch cabinet expands rapidly and pushes up the cover plate 3211, thereby driving the top rod 3212 and the wedge block 3213 to slide upward. The sliding wedge block 3213 pushes the abutment rod 3221 to slide backward, thereby driving the cross bar 3222 to slide backward.

[0057] S2, the sliding cross bar 3222 pulls the limiting plate 3224 back into the limiting plate slot 15 through the connecting rod 3223, and at the same time, the pressing rod 3226 presses the button 5 to turn on the air pump in the air chamber 4. At this time, the baffle plate 311 is driven to rotate clockwise under the elastic force of the spring spring 313, and under the restriction of the convex plate 314 and the clamping plate 121, the baffle plate 311 is in a vertical state and remains stationary;

[0058] S3. When the top rod 3212 slides upward, the limit block 3214 pulls the cable 331 toward the middle, and then pulls the second roller 333 to rotate clockwise through the first roller 332, and drives the rotating rod 334 to rotate through the transmission of the first worm 3331 and the first worm gear 3341, and then drives the fan blade 21 to rotate and close through the second worm 3342 and the second worm gear 23;

[0059] S4. After the baffle 311 is rotated and opened, the high-temperature and high-pressure expansion gas enters the warehouse body 341 through the pressure relief channel 12 to relieve pressure, and blows the spiral blades 3423 to drive the outer tube 3422 to rotate. When the positions of the air holes 3424 on the outer tube 3422 and the inner tube 3421 coincide, the inert gas in the gas warehouse 4 will enter the warehouse body 341 to cool the expansion gas.

[0060] The foregoing description of specific exemplary embodiments of the present invention is for the purpose of illustration and demonstration. These descriptions are not intended to limit the present invention to the precise form disclosed, and it is clear that many changes and variations can be made based on the above teachings. The purpose of selecting and describing exemplary embodiments is to explain the specific principles of the present invention and its practical application, so that those skilled in the art can realize and utilize various different exemplary embodiments of the present invention and various different selections and changes. The scope of the present invention is intended to be limited by the specification and its equivalents.

Claims

1. A switch cabinet safety protection device based on intelligent disconnection warning analysis, comprising a cabinet body (1), characterized in that: The left and right side walls of the cabinet (1) are provided with heat dissipation components (2) for heat dissipation, and the top of the cabinet (1) is provided with a pressure relief protection component (3) for short-circuit pressure relief protection, the pressure relief protection component (3) comprising a pressure relief chamber structure (34) fixed to the rear side of the top surface of the cabinet (1), a baffle structure (31) for connecting the cabinet (1) and the pressure relief chamber structure (34), an upper top structure (32) for driving the baffle structure (31) to open, and two window closing structures (33) for closing the heat dissipation component (2); A pressure relief channel (12) is provided in the middle of the top surface of the cabinet (1); the baffle structure (31) comprises a baffle (311) arranged in the pressure relief channel (12) and baffle shafts (312) arranged horizontally on the left and right sides; the baffle shaft (312) passes through the center of the baffle (311) and the two are fixedly connected; shaft grooves (13) are symmetrically provided on the left and right sides of the inner wall of the pressure relief channel (12); two ends of the baffle shaft (312) extend into the corresponding shaft grooves (13); a spring (313) is provided between the outer wall of the baffle shaft (312) and the inner wall of the shaft groove (13); a convex plate (314) is provided on the axial surface of the baffle shaft (312); and a clamping plate (121) for blocking the convex plate (314) is fixed on the top of the pressure relief channel (12); The upper structure (32) comprises two upper mechanisms (321) symmetrically arranged on the left and right sides of the pressure relief channel (12) and a transmission mechanism (322) arranged between the two upper mechanisms (321); the upper mechanism (321) comprises a cover plate (3211), a top rod (3212) whose bottom end is fixed to the top surface of the cover plate (3211), and a wedge block (3213) fixed to the top of the top rod (3212); the transmission mechanism (322) comprises a cross bar (3222) arranged on the rear side of the pressure relief channel (12) and two abutment rods (3221) vertically fixed to the two ends of the cross bar (3222); the front end of the abutment rod (3221) abuts against the corresponding inclined surface of the wedge block (3213); the front side of the middle section of the wedge block (3213) is symmetrically provided with connecting rods (3223); the front ends of the two connecting rods (3223) are fixed with the same limiting plate (3224).

2. The switch cabinet safety protection device based on intelligent disconnection warning analysis according to claim 1 is characterized in that: The top surface of the cabinet (1) is provided with a second mounting groove (18) for the transmission mechanism (322) to slide forward and backward, and the front side of the middle part of the second mounting groove (18) is provided with a limiting plate groove (15) for the limiting plate (3224) to slide forward and backward, and the limiting plate groove (15) is located below the baffle (311), and two sliding cavities (16) for the connecting rod (3223) to slide forward and backward are provided between the limiting plate groove (15) and the second mounting groove (18).

3. The switch cabinet safety protection device based on intelligent disconnection warning analysis according to claim 2 is characterized in that: A flange plate (3225) is fixed to the front end of the outer wall of the connecting rod (3223), and a spring (17) is provided between the flange plate (3225) and the corresponding rear side wall of the sliding cavity (16).

4. The switch cabinet safety protection device based on intelligent disconnection warning analysis according to claim 3 is characterized in that: An upper top channel (19) is provided at a position corresponding to the position of the upper top channel (19) at the top of the cabinet (1), the top end of the upper top channel (3212) is located in the upper top channel (19) corresponding to the upper top channel, and the two are slidably connected. A limit block (3214) is symmetrically provided at the top end of the upper top channel (3212), and the limit block (3214) is embedded in the inner side wall corresponding to the upper top channel (19), and the two are slidably connected.

5. The switch cabinet safety protection device based on intelligent disconnection warning analysis according to claim 4 is characterized in that: The top surface of the cabinet body (1) is symmetrically provided with first mounting grooves (14) on the left and right sides, and the two window closing structures (33) are arranged in the first mounting grooves (14) on the corresponding sides. The window closing structure (33) comprises a pull cable (331), a first rotating roller (332) and a second rotating roller (333) arranged in the first mounting groove (14), and a rotating rod (334) arranged on the rear side of the cabinet body (1).

6. The switch cabinet safety protection device based on intelligent disconnection warning analysis according to claim 5 is characterized in that: The height of the first roller (332) is lower than that of the second roller (333); one end of the cable (331) is fixed to the outer side wall of the limit block (3214) on the outer side of the top rod (3212) on the corresponding side, and the other end passes through the lower side of the first roller (332) on the corresponding side and is fixed to the side wall of the second roller (333) on the corresponding side; a first worm (3331) is coaxially fixed to the rear end of the second roller (333); the rotating rod (334) is vertically arranged on the inner side of the corresponding second roller (333); and a first worm wheel (3341) meshing with the first worm (3331) is coaxially fixed to the top end of the rotating rod (334).

7. The switch cabinet safety protection device based on intelligent disconnection warning analysis according to claim 6 is characterized in that: The cabinet (1) is provided with heat dissipation windows (11) on the left and right side walls, the heat dissipation assembly (2) is arranged in the heat dissipation window (11), the heat dissipation assembly (2) comprises a plurality of regularly arranged fan blades (21) and a fan blade shaft (22) penetrating the fan blades (21) from front to back, the fan blades (21) are fixedly connected to the corresponding fan blade shafts (22), a second worm gear (23) is coaxially fixed to the rear end of the fan blade shaft (22), a plurality of second worm gears (3342) corresponding to the plurality of fan blade shafts (22) are coaxially fixed to the rotating rod (334), and the second worm gears (3342) are meshed with the second worm gear (23).

8. The switch cabinet safety protection device based on intelligent disconnection warning analysis according to claim 7 is characterized in that: The pressure relief chamber structure (34) comprises a chamber body (341) and a plurality of air pipe mechanisms (342) regularly arranged in the chamber body (341); a gas chamber (4) storing inert gas is fixed above the chamber body (341); a pressing rod (3226) is horizontally fixed on the rear side of the middle of the cross bar (3222); a pressing rod groove (181) corresponding to the pressing rod (3226) is provided on the rear groove wall of the second mounting groove (18); and a button (5) for controlling the air pump in the gas chamber (4) is provided on the rear groove wall of the pressing rod groove (181).

9. The switch cabinet safety protection device based on intelligent disconnection warning analysis according to claim 8, characterized in that: The air pipe mechanism (342) comprises an inner tube (3421) whose top end passes through the top surface of the bin body (341) and is connected to the inside of the gas bin (4), and an outer tube (3422) which is sleeved on the outside of the inner tube (3421) and rotatably connected thereto, wherein a spiral blade (3423) is fixed to the outer wall of the outer tube (3422), and a plurality of regularly distributed air holes (3424) are provided on the walls of the inner tube (3421) and the outer tube (3422), and the positions of the air holes (3424) on the inner tube (3421) and the air holes (3424) on the outer tube (3422) correspond to each other.

10. A switch cabinet safety protection method based on intelligent disconnection warning analysis, using the switch cabinet safety protection device based on intelligent disconnection warning analysis according to claim 9, characterized in that: The following steps are involved: S1. When an abnormality occurs in the electrical components inside the switch cabinet, such as an arc or a short circuit, the gas inside the switch cabinet expands rapidly and pushes up the top cover plate (3211), thereby driving the top rod (3212) and the wedge block (3213) to slide upward. The sliding wedge block (3213) pushes the abutment rod (3221) to slide backward, thereby driving the cross bar (3222) to slide backward. S2, the sliding cross bar (3222) pulls the limiting plate (3224) back into the limiting plate slot (15) through the connecting rod (3223), and at the same time, the pressing rod (3226) presses the button (5) to open the air pump in the air chamber (4), at which time, the baffle plate (311) is driven to rotate clockwise under the elastic force of the spring (313), and under the restriction of the convex plate (314) and the clamping plate (121), the baffle plate (311) is kept stationary in a vertical state; S3. When the top rod (3212) slides upward, the limit block (3214) pulls the cable (331) toward the middle, thereby pulling the second roller (333) to rotate clockwise through the first roller (332), and driving the rotating rod (334) to rotate through the transmission of the first worm (3331) and the first worm wheel (3341), thereby driving the fan blade (21) to rotate and close through the second worm (3342) and the second worm wheel (23); S4. After the baffle (311) is rotated and opened, the high-temperature and high-pressure expansion gas enters the warehouse body (341) through the pressure relief channel (12) to release pressure, and blows the spiral blade (3423) to drive the outer tube (3422) to rotate. When the positions of the air holes (3424) on the outer tube (3422) and the inner tube (3421) overlap, the inert gas in the gas warehouse (4) will enter the warehouse body (341) to cool the expansion gas.

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