Intelligent power distribution device and maintenance-based interlocking power distribution device use method

Abstract

The invention relates to the technical field of power electronic component manufacturing, and discloses an intelligent power distribution device and a maintenance-based interlocking power distribution device using method.The intelligent power distribution device comprises a cabinet body and a cabinet door, the cabinet door is hinged to the cabinet body, and the cabinet door is provided with an electronic lock and heat dissipation holes; an electric push rod, a fire extinguishing mechanism and a protection mechanism are arranged in the top cavity; the fire extinguishing mechanism comprises a pushing assembly and nozzles distributed in the cabinet body in an array mode, the protection mechanism comprises a protection shell, a baffle and a driving assembly, and an aerogel plate is arranged on the inner side of the protection shell. According to the invention, fire extinguishing in the cabinet body can be realized, the electronic lock can be protected, and the problem that a user cannot open the cabinet door for maintenance due to deformation of the electronic lock caused by high temperature generated by fire is avoided, so that the practicability is improved, the fire extinguishing effect is improved, and the probability of re-combustion in the cabinet body can be reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of power electronic component manufacturing, and in particular to an intelligent power distribution device and a method for using the interlocking power distribution device based on maintenance. Background Art

[0002] Interlocking distribution cabinet is a kind of distribution equipment with safety interlocking function in the power system. It is mainly used to ensure the correctness and safety of the operation sequence and prevent accidents caused by misoperation (such as arc, short circuit, electric shock, etc.). The existing interlocking distribution cabinets are roughly divided into: mechanical interlocking and electrical interlocking. Among them, mechanical interlocking mainly limits the action of operating parts through physical structures (such as locks, connecting rods, baffles, etc.), while electrical interlocking realizes logical locking through electrical signals (such as relays, PLC control).

[0003] Most of the existing interlock distribution cabinets do not have the function of automatic fire extinguishing, which results in the distribution cabinet mainly using an alarm to prompt nearby staff to deal with it in time after an accidental fire. However, the longer the fire extinguishing work takes, the greater the loss. In order to solve this problem, Chinese patent CN211720031U discloses a safety distribution cabinet with an emergency fire extinguishing and cooling structure, including a distribution cabinet structure, the distribution cabinet structure including a fire extinguishing and cooling body and a distribution cabinet, the fire extinguishing and cooling body including a carbon dioxide fire extinguisher, which uses fire to melt a plastic belt. When the plastic belt melts, the upper end of the pressure plate loses the tension of the balance tension spring, so that the tension spring pulls the pressure plate to slide downward along the first slide rod, and the pressure plate slides downward to squeeze the switch of the carbon dioxide fire extinguisher, and the carbon dioxide fire extinguisher is used to spray carbon dioxide gas into the conduit, and the carbon dioxide gas enters the interior of the distribution cabinet through the conduit to perform cooling and fire extinguishing work, thereby achieving the purpose of automatic fire extinguishing of the device;

[0004] However, the above technical solution still has some defects in use. For example, it cannot protect the locks on the distribution cabinet. Since most fires in the distribution cabinet are caused by circuit short circuits, and the characteristics of this type of fire are that the fire starts quickly and the burning temperature can often reach more than 800 degrees in a very short time. Since it does not protect the locks, when the locks are exposed to high temperatures, the metal lock tongues in the locks may be stuck due to thermal expansion, resulting in the user being unable to open the cabinet door when repairing the cause of the fire in the distribution cabinet, thereby affecting the user's repair efficiency. Summary of the Invention

[0005] In response to the deficiencies in the prior art, the present invention provides an intelligent power distribution device and a method for using an interlocking power distribution device based on maintenance, which has the advantages of being able to protect locks, thereby avoiding the problem of locks being unusable due to their high position, and at the same time blocking the heat dissipation holes on the cabinet, thereby reducing the amount of air entering the cabinet, thereby avoiding the re-ignition of the fire after extinguishing, and solving the above-mentioned problems.

[0006] To solve the above technical problems, the present invention provides the following technical solutions: an intelligent power distribution device, comprising a cabinet body and a cabinet door, the cabinet door being hinged to the cabinet body, the cabinet door being provided with an electronic lock and a heat dissipation hole, the electronic lock being used to lock the cabinet door, and the heat dissipation hole being used to dissipate heat from the cabinet body, the cabinet body being composed of a top cavity, a side cavity, and an equipment cavity; an electric push rod, a fire extinguishing mechanism, and a protective mechanism being provided in the top cavity, and when a fire occurs in the cabinet, the electric push rod can drive the fire extinguishing mechanism and the protective mechanism to operate;

[0007] The fire extinguishing mechanism includes a pushing assembly and a nozzle array distributed in the cabinet. When a fire occurs in the cabinet, the pushing assembly can drive the nozzle to move downward into the cabinet and spray liquid perfluorohexanone into the cabinet.

[0008] The protective mechanism includes a protective shell, a baffle and a drive assembly. An aerogel plate is provided on the inside of the protective shell. When the drive assembly is in operation, it drives the protective shell to move downward and wrap the electronic lock, and at the same time drives the baffle to move horizontally along the cabinet door and block the heat dissipation holes.

[0009] Preferably, the pushing assembly includes a top ball, a through hole and a bent tube, the top ball is fixedly connected to the output shaft of the electric push rod, the bent tube is fixedly connected to the inner top of the top cavity, the inner ends of the bent tube are respectively slidably connected with a round head rod and a push rod, the round head rod is fixedly connected to a return spring, and the end of the return spring away from the round head rod is fixedly connected to the bent tube.

[0010] Preferably, the bottom surface of the push rod is fixedly connected to a moving plate, the outer side of the moving plate is slidably connected to a fixed rod, the fixed rod is fixedly connected to the inner side of the top cavity, the bottom of the moving plate is fixedly connected to a connecting spring, the end of the connecting spring away from the moving plate is fixedly connected to the bottom of the inner side of the top cavity, a connecting pipe is installed at the bottom of the moving plate, the nozzle is fixedly connected to the connecting pipe, the through hole is opened between the top cavity and the equipment cavity, and when the nozzle moves downward, it can pass through the through hole into the equipment cavity.

[0011] Preferably, a bellows is provided at one end of the connecting pipe, an electric ball valve is provided at the end of the bellows away from the connecting pipe, the bottom of the electric ball valve is connected to a storage tank for storing perfluorohexanone, and the electric ball valve and the storage tank are both arranged in the side cavity.

[0012] Preferably, the drive assembly includes a drive rack, an inner bottom plate and an outer bottom plate, the drive rack is fixedly connected to the outside of the top ball, the outside of the drive rack is meshed with a driving gear, the bottom of the driving gear is coaxially fixedly connected to a transmission gear, the driving gear and the transmission gear are coaxially rotatably connected to the inside of the top cavity, the outside of the transmission gear is meshed with a driven gear, and the bottom of the driven gear is fixedly connected to a self-locking screw.

[0013] Preferably, the top end of the self-locking screw is distributed on the inner side of the top cavity, and the end of the self-locking screw away from the driven gear passes through the top cavity and is rotatably connected to the inner side of the side cavity. The self-locking screw is respectively threadedly connected with an upper slider and a lower slider, and the outer side of the upper slider is slidably connected to a limiting hole.

[0014] Preferably, the limiting hole is opened on the side cavity, the side cavity and the equipment cavity are connected through the limiting hole, the upper slider and the lower slider are both slidably connected in the limiting hole, the protective shell is fixedly connected to the upper slider, and the electronic lock consists of a latch part and a sleeve part, the latch part is installed on the inner side of the cabinet door, and the sleeve part is installed on the inner side of the cabinet body, the inner bottom plate and the outer bottom plate are fixedly connected to the cabinet door and the cabinet body, respectively, and the inner bottom plate and the outer bottom plate are respectively distributed below the latch part and the sleeve part. After the protective shell moves downward, it can be surrounded by the inner bottom plate and the outer bottom plate to form a closed shell to wrap the electronic lock.

[0015] Preferably, a fixed rack is fixedly connected to the lower slider, a tooth roller is engaged on the outer side of the fixed rack, a bracket is rotatably connected to the outer side of the tooth roller, the bracket is fixedly connected to the outer side of the side cavity, a movable rack is engaged on the bottom of the tooth roller, and the movable rack is fixedly connected to the top surface of the baffle.

[0016] Preferably, a compression spring is fixedly connected to the inner side of the baffle, and the end of the compression spring away from the baffle is fixedly connected to a fixed plate. The compression springs are distributed on both sides of the fixed plate, the baffle is slidably connected to the outer side of the fixed plate, and the fixed plate is fixedly connected to the cabinet.

[0017] A method for using an interlocking power distribution device based on maintenance uses the above-mentioned intelligent power distribution device.

[0018] Compared with the prior art, the present invention provides an intelligent power distribution device and a method for using an interlocking power distribution device based on maintenance, which has the following beneficial effects:

[0019] 1. In the present invention, after an accidental fire occurs in the equipment cavity, the electric push rod operates, and the operation of the electric push rod drives the pushing component and the driving component to operate. The pushing component operates to drive the nozzle to move, and then the nozzle is driven by the pushing component to move down into the equipment cavity. At this time, the nozzle sprays liquid perfluorohexanone into the equipment cavity, and the effect of extinguishing the fire in the equipment cavity can be achieved. The operation of the driving component drives the protective shell to move. After the protective shell moves, it wraps the electronic lock on the cabinet door, thereby protecting the electronic lock. In this way, the fire can be extinguished in the cabinet while the electronic lock can be protected, avoiding the problem that the electronic lock is deformed due to the high temperature generated by the fire, which makes it impossible for the user to open the cabinet door for inspection, thereby improving practicality.

[0020] 2. In the present invention, while the driving component drives the protective shell to move, the driving component can also drive the baffle to move toward the heat dissipation holes on the cabinet door. After the baffle moves, it blocks the heat dissipation holes on the cabinet door, thereby achieving sealing of the cabinet body, thereby greatly reducing the entry of external air into the cabinet body, and further reducing the oxygen content in the cabinet body after the nozzle sprays liquid perfluorohexanone into the cabinet body to extinguish the fire, thereby improving the fire extinguishing effect while reducing the probability of re-ignition in the cabinet body. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the first viewing angle of the present invention;

[0022] Figure 2 A second perspective schematic diagram of the present invention;

[0023] Figure 3 for Figure 2 A schematic diagram of the structure at center A;

[0024] Figure 4 This is a left side cross-sectional view from a first viewing angle of the present invention;

[0025] Figure 5 This is a left side cross-sectional view from a second viewing angle of the present invention;

[0026] Figure 6 for Figure 5 A magnified schematic diagram of the structure at point B in the middle;

[0027] Figure 7 It is a front side sectional schematic diagram of the present invention;

[0028] Figure 8 for Figure 7 A magnified schematic diagram of the structure at point C in the middle;

[0029] Figure 9 It is a schematic diagram of the overall structure of the present invention.

[0030] In the figure: 1. Cabinet; 11. Top cavity; 12. Side cavity; 13. Equipment cavity; 2. Cabinet door; 3. Electronic lock; 31. Latch; 32. Socket; 4. Electric push rod; 5. Fire extinguishing mechanism; 51. Sprinkler; 52. Push assembly; 521. Top ball; 522. Bend pipe; 523. Round head rod; 524. Push rod; 525. Return spring; 526. Shift plate; 527. Fixed rod; 528. Connecting pipe; 529. Bellows; 5210. Electric ball valve; 5211. Storage tank; 5213. Through hole; 5214. Connecting spring Spring; 6. Protective mechanism; 61. Protective shell; 611. Aerogel plate; 62. Baffle; 621. Compression spring; 622. Fixed plate; 63. Driving assembly; 631. Driving rack; 632. Driving gear; 633. Transmission gear; 634. Driven gear; 635. Self-locking screw; 636. Upper slider; 637. Lower slider; 638. Limiting hole; 639. Tooth roller; 6310. Bracket; 6311. Inner bottom plate; 6312. Moving rack; 6313. Outer bottom plate; 6314. Fixed rack; 7. Heat dissipation hole. DETAILED DESCRIPTION

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] As introduced in the background technology, in order to solve the deficiencies in the existing technology and the above technical problems, this application proposes an intelligent power distribution device and a method for using an interlocking power distribution device based on maintenance.

[0033] Example 1: Please refer to Figures 1-9 An intelligent power distribution device includes a cabinet body 1 and a cabinet door 2. The cabinet door 2 is hinged on the cabinet body 1 and is provided with an electronic lock 3 and a heat dissipation hole 7. The electronic lock 3 is used to lock the cabinet door 2. The electronic lock 3 consists of a latch portion 31 and a socket portion 32. The latch portion 31 is installed on the inside of the cabinet door 2, and the socket portion 32 is installed on the inside of the cabinet body 1. The heat dissipation hole 7 is used to dissipate heat from the cabinet body 1. The cabinet body 1 consists of a top cavity 11, a side cavity 12, and an equipment cavity 13; an electric push rod 4, a fire extinguishing mechanism 5, and a protective mechanism 6 are provided in the top cavity 11. When a fire occurs in the cabinet body 1, the electric push rod 4 can drive the fire extinguishing mechanism 5 and the protective mechanism 6 to operate;

[0034] The fire extinguishing mechanism 5 includes a push assembly 52 and nozzles 51 distributed in an array in the cabinet 1. When a fire occurs in the cabinet 1, the push assembly 52 can drive the nozzles 51 to move downward into the cabinet 1 and spray liquid perfluorohexanone into the cabinet 1.

[0035] The protective mechanism 6 includes a protective shell 61, a baffle 62 and a driving assembly 63. An aerogel plate 611 is provided on the inside of the protective shell 61. When the driving assembly 63 is running, the protective shell 61 is driven to move downward and wrap the electronic lock 3, and at the same time, the baffle 62 is driven to move horizontally along the cabinet door 2 and block the heat dissipation hole 7.

[0036] After a fire breaks out in the cabinet 1, the electric push rod 4 operates, and the electric push rod 4 operates to drive the pushing component 52 and the driving component 63 to operate. The pushing component 52 operates to drive the nozzle 51 to move, and then the nozzle 51 is driven by the pushing component 52 to move down into the equipment cavity 13. At this time, the nozzle 51 sprays liquid perfluorohexanone into the equipment cavity 13, thereby achieving the effect of extinguishing the fire in the equipment cavity 13. The driving component 63 operates to drive the protective shell 61 and the baffle 62 to move. After the protective shell 61 moves, it wraps the electronic lock 3 on the cabinet door 2, thereby protecting the electronic lock 3, and preventing The aerogel plate 611 in the protective shell 61 can insulate the heat absorbed by the protective shell 61, thereby preventing the temperature of the protective shell 61 from being transferred to the electronic lock 3. At the same time, the baffle 62 moves to block the heat dissipation holes 7 on the cabinet door 2, thereby achieving the goal of extinguishing the fire in the cabinet 1 while protecting the electronic lock 3 on the cabinet 1, thereby preventing it from being deformed after being roasted by high temperature and becoming unable to be opened. It can also block the heat dissipation holes 7, thereby greatly reducing the air entering the cabinet 1, further reducing the probability of re-ignition in the cabinet 1.

[0037] It should be noted that a control panel for controlling the latch portion 31 is further provided on the outer side of the cabinet door 2 .

[0038] In actual use, a PLC control panel is provided on the outside of the cabinet door 2, and a temperature sensor and a smoke sensor are provided in the equipment cavity 13. The temperature sensor and the smoke sensor are both connected to the PLC control panel on the cabinet body 1, and the electric push rod 4 is connected to the PLC control panel. After a fire occurs in the equipment cavity 13, the temperature sensor and the smoke sensor cooperate to detect, and then feed back the information to the PLC control panel, and then the PLC control panel controls the operation of the electric push rod 4.

[0039] Example 2: See Figures 1-9, different from the above-mentioned embodiment 1, the pushing assembly 52 includes a top ball 521, a through hole 5213 and a bent pipe 522, the top ball 521 is fixedly connected to the output shaft of the electric push rod 4, the bent pipe 522 is fixedly connected to the inner top of the top cavity 11, and the inner ends of the bent pipe 522 are respectively slidably connected with a round head rod 523 and a push rod 524, and hydraulic oil is filled between the round head rod 523 and the push rod 524, and a return spring 525 is fixedly connected to the round head rod 523, and the end of the return spring 525 away from the round head rod 523 is fixedly connected to the bent pipe 522, and the bottom surface of the push rod 524 is fixedly connected to a moving plate 526, and the outer side of the moving plate 526 is slidably connected to a fixed rod 527, and the fixed rod 527 is fixedly connected to the inner side of the top cavity 11 , the bottom of the moving plate 526 is fixedly connected to a connecting spring 5214, and one end of the connecting spring 5214 away from the moving plate 526 is fixedly connected to the bottom inside the top cavity 11, and a connecting pipe 528 is installed at the bottom of the moving plate 526. The nozzle 51 is fixedly connected to the connecting pipe 528. The through hole 5213 is opened between the top cavity 11 and the equipment cavity 13. When the nozzle 51 moves downward, it can pass through the through hole 5213 into the equipment cavity 13. A bellows 529 is provided at one end of the connecting pipe 528, and an electric ball valve 5210 is provided at the end of the bellows 529 away from the connecting pipe 528. The bottom of the electric ball valve 5210 is connected to a storage tank 5211 for storing perfluorohexanone. The electric ball valve 5210 and the storage tank 5211 are both arranged in the side cavity 12;

[0040] When the electric push rod 4 is running, it drives the top ball 521 to move toward the side cavity 12. After the top ball 521 moves, it contacts the round head rod 523. The round head rod 523 moves to squeeze the return spring 525 and transmit the pressure to the hydraulic oil in the elbow 522. The pressure is then transmitted to the push rod 524 through the hydraulic oil. At this time, the push rod 524 is pushed out of the elbow 522. The push rod 524 moves to drive the moving plate 526 to move along the fixed rod 527. The moving plate 526 moves to squeeze the connecting spring 5214 and drive the connecting pipe 528 to move downward. The connecting pipe 528 moves to drive the nozzle 51 to move downward. After the nozzle 51 moves downward, it passes through the through hole 5213 into the equipment cavity 13. Then the electric ball valve 5210 opens. At this time, the liquid perfluorohexanone in the storage tank 5211 enters the bellows 529 through the electric ball valve 5210, and then enters the connecting pipe 528 through the bellows 529, and is then sprayed out through the nozzle 51, thereby achieving the effect of extinguishing the fire in the equipment cavity 13.

[0041] In actual use, a guide rod is provided at the bottom of the shift plate 526, and a push switch is provided at the inner bottom of the top cavity 11. The guide rod and the push switch are on the same vertical line. The push switch is used to control the opening and closing of the electric ball valve 5210. In the initial state, the guide rod at the bottom of the shift plate 526 cannot contact the push switch. At this time, the electric ball valve 5210 is in a closed state. After the shift plate 526 is driven downward by the push rod 524, the guide rod at the bottom of the shift plate 526 contacts the push switch, and the electric ball valve 5210 is opened.

[0042] Example 3, see Figures 1-9 , which is different from the above-mentioned embodiment 2, is that the driving assembly 63 includes a driving rack 631, an inner bottom plate 6311 and an outer bottom plate 6313. The driving rack 631 is fixedly connected to the outside of the top ball 521. The outer side of the driving rack 631 is meshed with a driving gear 632. The bottom of the driving gear 632 is coaxially fixedly connected to a transmission gear 633. The driving gear 632 and the transmission gear 633 are coaxially connected to the inside of the top cavity 11. The outer side of the transmission gear 633 is meshed with a driven gear 634. The bottom of the driven gear 634 is fixedly connected There is a self-locking screw 635, the top of the self-locking screw 635 is distributed inside the top cavity 11, and the end of the self-locking screw 635 away from the driven gear 634 passes through the top cavity 11 and is rotated and connected to the inside of the side cavity 12. The self-locking screw 635 is threadedly connected with an upper slider 636 and a lower slider 637. The outer side of the upper slider 636 is slidably connected to the limiting hole 638. The limiting hole 638 is opened on the side cavity 12. The side cavity 12 and the equipment cavity 13 are connected through the limiting hole 638. The upper slider 636 and the lower slider 637 are both slidably connected to the limiting hole 63 8, the protective shell 61 is fixedly connected to the upper slider 636, the inner bottom plate 6311 and the outer bottom plate 6313 are fixedly connected to the cabinet door 2 and the cabinet body 1 respectively, and the inner bottom plate 6311 and the outer bottom plate 6313 are respectively distributed below the latch portion 31 and the socket portion 32. After the protective shell 61 moves downward, it can be surrounded by the inner bottom plate 6311 and the outer bottom plate 6313 to form a closed shell to wrap the electronic lock 3. The lower slider 637 is fixedly connected to a fixed rack 6314, and the outer side of the fixed rack 6314 is meshed with a gear roller 639. The gear roller 639 is meshed with the gear roller 639. The outer side of 39 is rotatably connected to a bracket 6310, which is fixedly connected to the outer side of the side cavity 12. The bottom of the gear roller 639 is engaged with a movable rack 6312, which is fixedly connected to the top surface of the baffle 62. The inner side of the baffle 62 is fixedly connected to a compression spring 621, and the end of the compression spring 621 away from the baffle 62 is fixedly connected to a fixed plate 622. The compression springs 621 are distributed on both sides of the fixed plate 622. The baffle 62 is slidably connected to the outer side of the fixed plate 622, and the fixed plate 622 is fixedly connected to the cabinet body 1;

[0043] When the electric push rod 4 drives the top ball 521 to move, the driving rack 631 is driven by the top ball 521 to move, and the driving rack 631 moves to drive the driving gear 632 to rotate, and the driving gear 632 rotates through the transmission shaft to drive the transmission gear 633 to rotate, and the transmission gear 633 rotates to drive the driven gear 634 to rotate. Since the number of teeth and the diameter of the transmission gear 633 are greater than those of the driven gear 634, when the transmission gear 633 drives the driven gear 634 to rotate, the speed of the driven gear 634 is greater than that of the transmission gear 633, thereby increasing the speed of the self-locking screw 635, thereby improving the movement of the subsequent protective shell 61 and the baffle 62. The driven gear 634 rotates to drive the self-locking screw 635 to rotate, and the self-locking screw 635 rotates to drive the upper slider 636 to move downward along the limiting hole 638. The upper slider 636 moves downward to drive the protective shell 61 to move downward. After the protective shell 61 moves downward, it wraps the electronic lock 3 as a whole. At the same time, after the protective shell 61 moves, its bottom surface will contact the outer bottom plate 6313 and the inner bottom plate 6311, thereby forming a siege on the electronic lock 3, thereby achieving full wrapping of the electronic lock 3. When high temperature appears in the equipment cavity 13, the protective shell 61 protects the electronic lock 3 to prevent it from being deformed after being roasted by the high temperature, which may cause the problem of being unable to be opened later.

[0044] When the self-locking screw 635 drives the upper slider 636 to move, the lower slider 637 also moves downward along the limit hole 638 as the self-locking screw 635 rotates. The downward movement of the lower slider 637 drives the fixed rack 6314 to move downward. The downward movement of the fixed rack 6314 drives the gear roller 639 on the bracket 6310 to rotate. The rotation of the gear roller 639 drives the movable rack 6312 to move away from the side cavity 12. The movement of the movable rack 6312 drives the baffle 62 to move along the fixed plate 622. The movement of the baffle 62 stretches and compresses the spring 621, thereby improving the stability of the baffle 62 when moving. After the baffle 62 moves, it blocks the heat dissipation holes 7 on the cabinet door 2, thereby sealing the cabinet body 1, thereby reducing the air entering the cabinet body 1, thereby improving the fire extinguishing effect while further reducing the probability of re-ignition.

[0045] A method for using an interlocking power distribution device based on maintenance uses the above-mentioned intelligent power distribution device.

[0046] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An intelligent power distribution device, comprising a cabinet body and a cabinet door, the cabinet door being hinged to the cabinet body, the cabinet door being provided with an electronic lock and a heat dissipation hole, the electronic lock being used to lock the cabinet door, and the heat dissipation hole being used to dissipate heat from the cabinet body, characterized in that: The cabinet body consists of a top cavity, a side cavity and an equipment cavity; an electric push rod, a fire extinguishing mechanism and a protective mechanism are arranged in the top cavity. When a fire occurs in the cabinet, the electric push rod can drive the fire extinguishing mechanism and the protective mechanism to operate; The fire extinguishing mechanism includes a pushing assembly and a nozzle array distributed in the cabinet. When a fire occurs in the cabinet, the pushing assembly can drive the nozzle to move downward into the cabinet and spray liquid perfluorohexanone into the cabinet. The protective mechanism includes a protective shell, a baffle and a drive assembly. An aerogel plate is provided on the inside of the protective shell. When the drive assembly is in operation, it drives the protective shell to move downward and wrap the electronic lock, and at the same time drives the baffle to move horizontally along the cabinet door and block the heat dissipation holes.

2. The intelligent power distribution device according to claim 1, characterized in that: The pushing assembly includes a top ball, a through hole and a bent pipe. The top ball is fixedly connected to the output shaft of the electric push rod. The bent pipe is fixedly connected to the inner top of the top cavity. The inner ends of the bent pipe are respectively slidably connected with a round head rod and a push rod. A return spring is fixedly connected to the round head rod, and the end of the return spring away from the round head rod is fixedly connected to the bent pipe.

3. The intelligent power distribution device according to claim 2, characterized in that: The bottom surface of the push rod is fixedly connected to a moving plate, the outer side of the moving plate is slidably connected to a fixed rod, the fixed rod is fixedly connected to the inner side of the top cavity, the bottom of the moving plate is fixedly connected to a connecting spring, one end of the connecting spring away from the moving plate is fixedly connected to the bottom of the inner side of the top cavity, a connecting pipe is installed at the bottom of the moving plate, the nozzle is fixedly connected to the connecting pipe, the through hole is opened between the top cavity and the equipment cavity, and when the nozzle moves downward, it can pass through the through hole into the equipment cavity.

4. The intelligent power distribution device according to claim 3, characterized in that: A bellows is provided at one end of the connecting pipe, an electric ball valve is provided at the end of the bellows away from the connecting pipe, the bottom of the electric ball valve is connected to a storage tank for storing perfluorohexanone, and the electric ball valve and the storage tank are both arranged in the side cavity.

5. The intelligent power distribution device according to claim 4, characterized in that: The driving assembly includes a driving rack, an inner bottom plate and an outer bottom plate. The driving rack is fixedly connected to the outside of the top ball. The outer side of the driving rack is meshed with a driving gear. The bottom of the driving gear is coaxially fixedly connected to a transmission gear. The driving gear and the transmission gear are coaxially rotatably connected to the inside of the top cavity. The outer side of the transmission gear is meshed with a driven gear. The bottom of the driven gear is fixedly connected to a self-locking screw.

6. The intelligent power distribution device according to claim 5, characterized in that: The top end of the self-locking screw is distributed on the inner side of the top cavity, and the end of the self-locking screw away from the driven gear passes through the top cavity and is rotatably connected to the inner side of the side cavity. The self-locking screw is respectively threadedly connected with an upper slider and a lower slider, and the outer side of the upper slider is slidably connected to the limiting hole.

7. The intelligent power distribution device according to claim 6, characterized in that: The limiting hole is opened on the side cavity, and the side cavity and the equipment cavity are connected through the limiting hole. The upper slider and the lower slider are both slidably connected in the limiting hole. The protective shell is fixedly connected to the upper slider. The electronic lock consists of a latch part and a sleeve part. The latch part is installed on the inner side of the cabinet door, and the sleeve part is installed on the inner side of the cabinet body. The inner bottom plate and the outer bottom plate are fixedly connected to the cabinet door and the cabinet body respectively, and the inner bottom plate and the outer bottom plate are respectively distributed below the latch part and the sleeve part. After the protective shell moves downward, it can be surrounded by the inner bottom plate and the outer bottom plate to form a closed shell to wrap the electronic lock.

8. The intelligent power distribution device according to claim 7, characterized in that: A fixed rack is fixedly connected to the lower slider, a toothed roller is engaged on the outer side of the fixed rack, a bracket is rotatably connected to the outer side of the toothed roller, the bracket is fixedly connected to the outer side of the side cavity, a movable rack is engaged at the bottom of the toothed roller, and the movable rack is fixedly connected to the top surface of the baffle.

9. The intelligent power distribution device according to claim 8, characterized in that: A compression spring is fixedly connected to the inner side of the baffle, and one end of the compression spring away from the baffle is fixedly connected to a fixed plate. The compression springs are distributed on both sides of the fixed plate, and the baffle is slidably connected to the outer side of the fixed plate. The fixed plate is fixedly connected to the cabinet.

10. A method for using an interlocking power distribution device based on maintenance, characterized in that: An intelligent power distribution device as described in any one of claims 1 to 9 is used.

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