Power distribution cabinet for smart power grid

Abstract

The power distribution cabinet comprises a heat dissipation mechanism, a fire extinguishing mechanism and a dustproof mechanism, the heat dissipation mechanism comprises a power distribution cabinet shell, a heat dissipation motor, a heat dissipation fan, an isolation cover, a first heat dissipation assembly and a second heat dissipation assembly, and the power distribution cabinet shell is slidably connected with the second heat dissipation assembly; the first heat dissipation assembly is fixedly connected with the second heat dissipation assembly, a mounting box is fixedly connected to the side wall of the power distribution cabinet shell, the heat dissipation motor is fixedly connected to the inner bottom of the mounting box, a bevel gear transmission set is fixedly connected to an output shaft of the heat dissipation motor, and the heat dissipation fan is rotationally connected to the inner bottom of the power distribution cabinet shell. Through the arrangement of the heat dissipation mechanism, when the device dissipates heat of internal electrical components, the problem that water drops are shaken off due to vibration of condensate water and then splash to the electrical components, and then potential safety hazards are caused is solved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of power distribution cabinets, and in particular to a power distribution cabinet for intelligent power grids. BACKGROUND

[0002] The power distribution cabinet is an electrical device which is used for power distribution, control and protection and is connected with power sources and electrical equipment.

[0003] The existing device has the problem of condensate water during heat dissipation. For example, a low-carbon intelligent power grid power distribution cabinet disclosed in Chinese Patent Publication No. CN118281738B adopts a semiconductor refrigerating sheet to refrigerate the working cavity of the device, so as to dissipate heat in the working cavity. Meanwhile, the air inlet pipe, the air supply pipe and the semiconductor refrigerating sheet cooperate to dissipate heat. However, the condensate water generated by the semiconductor refrigerating sheet will directly flow down from the surface of the semiconductor refrigerating sheet. When the device is vibrated, the water droplets may be shaken off from the semiconductor refrigerating sheet and then splashed onto the electrical elements. Accordingly, the application provides a power distribution cabinet for intelligent power grids. SUMMARY

[0004] The application aims to solve the problems in the prior art and provides a power distribution cabinet for intelligent power grids.

[0005] To achieve the above-mentioned purpose, the application adopts the following technical scheme:

[0006] The power distribution cabinet for intelligent power grids comprises a heat dissipation mechanism, a fire extinguishing mechanism and a dustproof mechanism. The heat dissipation mechanism comprises a power distribution cabinet shell, a heat dissipation motor, a heat dissipation fan, an isolation cover, a first heat dissipation assembly and a second heat dissipation assembly.

[0007] The power distribution cabinet shell is in sliding connection with the second heat dissipation assembly. The first heat dissipation assembly is in fixed connection with the second heat dissipation assembly. The side wall of the power distribution cabinet shell is fixedly connected with a mounting box. The heat dissipation motor is fixedly connected to the inner bottom of the mounting box. A bevel gear transmission group is fixedly connected to the output shaft of the heat dissipation motor. The heat dissipation fan is rotatably connected to the inner bottom of the power distribution cabinet shell.

[0008] The bevel gear transmission group is located in the isolation cover. The isolation cover is fixedly connected to the inner bottom of the power distribution cabinet shell. The heat dissipation fan is also rotatably connected to the isolation cover. The output shaft of the heat dissipation motor is rotatably connected to the isolation cover.

[0009] Preferably, the fire extinguishing mechanism comprises a compressed gas tank, a nozzle, an air outlet, a lifting box, a lifting motor, a lifting screw rod, an isolation plate and a column gear transmission group.

[0010] The air outlet is fixedly connected with the compressed gas tank, the nozzle is fixedly connected with the compressed gas tank through the air outlet, and the lifting box is fixedly connected to the lower surface of the compressed gas tank.

[0011] Preferably, the lifting motor is fixedly connected in the compressed gas tank, the output shaft of the lifting motor is fixedly connected with the column gear transmission group, and the column gear transmission group is further rotationally connected with the lifting box.

[0012] Preferably, the compressed gas tank is slidably connected with a separation plate, the separation plate is further threadedly connected with the lifting lead screw, and the separation plate is located behind the nozzle.

[0013] Preferably, the dustproof mechanism comprises a base, a cam, a top rod, a water supply square pipe, a water storage tank, a water supply piston, a water supply pipe, a cleaning motor, a cleaning gear transmission group, a cleaning lead screw, a clean water filter screen and a dustproof filter screen.

[0014] The base is fixedly connected to the lower end of the power distribution cabinet shell, the side wall of the base is fixedly connected with the cleaning motor, the output shaft of the cleaning motor is fixedly connected with the cleaning gear transmission group, the clean water filter screen is slidably connected with the base, and the clean water filter screen is threadedly connected with the cleaning lead screw.

[0015] Preferably, the cam is fixedly connected with the output shaft of the heat dissipation motor, the top rod is fixedly connected with the lower surface of the dustproof filter screen, the water supply piston is fixedly connected with the side wall of the power distribution cabinet shell, and the output rod of the water supply piston is fixedly connected with the dustproof filter screen and the water supply square pipe.

[0016] Preferably, the water supply pipe is connected with the water inlet end of the water supply piston, the water outlet end of the water supply piston is located at the center of the output shaft, and the water inlet end of the water supply piston is communicated with the internal space of the water supply square pipe.

[0017] Preferably, the clean water filter screen is obliquely arranged in the base, and the bottom end of the water supply pipe is located below the clean water filter screen.

[0018] Preferably, the inside of the power distribution cabinet shell is fixedly connected with a blocking plate, and the upper surface of the blocking plate is fixedly connected with a rubber plate.

[0019] Preferably, a half gear is further fixedly connected to the output shaft of the heat dissipation motor, a vacuum piston is fixedly connected to the inner bottom of the mounting box, a rack is fixedly connected to the output rod of the vacuum piston, a vacuum box is fixedly connected in the mounting box, the air inlet end of the vacuum piston is communicated with the vacuum box, an air inlet pipe is fixedly connected to the compressed gas tank, and a cabinet door is rotationally connected to the power distribution cabinet shell.

[0020] The present application has the following beneficial effects:

[0021] 1. The application sets up a heat dissipation mechanism, which can dissipate heat for internal electrical components, avoid the condensate water from being shaken off by water droplets, and then splash on the electrical components, thereby causing a safety hazard.

[0022] 2. By setting up a fire extinguishing mechanism, the device can be closed when the internal fire occurs, and the carbon dioxide in the compressed gas tank is sprayed, thereby extinguishing the fire inside the device, so as to avoid the fire inside the device.

[0023] 3. By setting up a dust prevention mechanism, the device can absorb the fine water droplets raised by the device when in use, and at the same time be filtered by the dust filter screen, which avoids the safety hazard caused by the attachment of external dust. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 The overall structure of the power distribution cabinet for the intelligent power grid is shown in the figure;

[0025] Figure 2 For Figure 1 The enlarged view of A;

[0026] Figure 3 The side mechanism schematic diagram of the power distribution cabinet for the intelligent power grid is shown in the figure;

[0027] Figure 4 For Figure 3 The enlarged view of B;

[0028] Figure 5 The position diagram of the blocking plate of the power distribution cabinet for the intelligent power grid is shown in the figure;

[0029] Figure 6 The position diagram of the water filter screen of the power distribution cabinet for the intelligent power grid is shown in the figure;

[0030] Figure 7 For Figure 6 The enlarged view of C;

[0031] Figure 8 For Figure 6 The enlarged view of D;

[0032] Figure 9 The structure diagram of the second heat dissipation assembly of the power distribution cabinet for the intelligent power grid is shown in the figure;

[0033] Figure 10 The structure diagram of the blocking plate of the power distribution cabinet for the intelligent power grid is shown in the figure;

[0034] Figure 11An angle diagram of a clean water filter screen of a power distribution cabinet for a smart grid is provided in the present application;

[0035] Figure 12 A structure diagram of a bevel gear transmission group of a power distribution cabinet for a smart grid is provided in the present application;

[0036] Figure 13 A position diagram of a lifting box of a power distribution cabinet for a smart grid is provided in the present application;

[0037] Figure 14 A position diagram of a lifting motor of a power distribution cabinet for a smart grid is provided in the present application;

[0038] Figure 15 A structure diagram of a cylindrical gear transmission group of a power distribution cabinet for a smart grid is provided in the present application.

[0039] In the figure: 1 power distribution cabinet shell, 2 cabinet door, 3 air outlet, 4 mounting box, 5 base, 6 cleaning motor, 7 compressed gas tank, 8 air inlet pipe, 9 nozzle, 10 barrier plate, 11 rubber plate, 12 No. 1 heat dissipation assembly, 13 No. 2 heat dissipation assembly, 14 heat dissipation fan, 15 isolation cover, 16 cam, 17 top rod, 18 water supply square tube, 19 water storage tank, 20 dustproof filter screen, 21 water supply piston, 22 water supply pipe, 23 cleaning gear transmission group, 24 cleaning lead screw, 25 clean water filter screen, 26 vacuum box, 27 heat dissipation motor, 28 half gear, 29 rack, 30 vacuum piston, 31 bevel gear transmission group, 32 lifting motor, 33 cylindrical gear transmission group, 34 isolation plate, 35 lifting lead screw, 36 lifting box. DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all.

[0041] Embodiment one:

[0042] A power distribution cabinet for a smart grid, comprising a heat dissipation mechanism, a fire extinguishing mechanism and a dustproof mechanism, the heat dissipation mechanism comprising a power distribution cabinet shell 1, a heat dissipation motor 27, a heat dissipation fan 14, an isolation cover 15, a No. 1 heat dissipation assembly 12 and a No. 2 heat dissipation assembly 13, the power distribution cabinet shell 1 being in sliding connection with the No. 2 heat dissipation assembly 13, the No. 1 heat dissipation assembly 12 being in fixed connection with the No. 2 heat dissipation assembly 13, the power distribution cabinet shell 1 being fixedly connected with a mounting box 4 on the side wall, the heat dissipation motor 27 being fixedly connected to the inner bottom of the mounting box 4, a bevel gear transmission group 31 being fixedly connected to the output shaft of the heat dissipation motor 27, and the heat dissipation fan 14 being rotatably connected to the inner bottom of the power distribution cabinet shell 1.

[0043] The bevel gear transmission set 31 is located in the isolation cover 15 which is fixedly connected to the inner bottom of the power distribution cabinet shell 1, the cooling fan 14 is also rotatably connected to the isolation cover 15, and the output shaft of the cooling motor 27 is rotatably connected to the isolation cover 15. The water supply pipe 22 is connected to the water inlet end of the water supply piston 21, and the water outlet end of the water supply piston 21 is located at the center of the output shaft. The water inlet end of the water supply piston 21 is in communication with the internal space of the water supply pipe 18.

[0044] In use of the device, first, the electrical components are installed in the interior of the device. Since the electrical components will generate heat when working. At this time, the cooling motor 27 can be started. Since the output shaft of the cooling motor 27 is fixedly connected with the bevel gear transmission set 31, the rotation of the output shaft of the cooling motor 27 will drive one of the bevel gears of the bevel gear transmission set 31 to rotate. The bevel gear transmission set 31 is composed of a pair of meshing bevel gears, one of which is fixedly connected with the output shaft of the cooling motor 27, and the other of which is fixedly connected with the cooling fan 14.

[0045] Therefore, when the output shaft of the cooling motor 27 rotates, it can drive the bevel gear transmission set 31 to rotate, and in turn drive the cooling fan 14 to rotate, so that the cooling fan 14 can blow external air into the interior of the power distribution cabinet shell 1 of the device, thereby cooling the interior of the device.

[0046] Reference Figure 6 With Figure 7 Since the half gear 28 is meshed with the rack 29, and the vacuum piston 30 is connected with the vacuum box 26, and the vacuum piston 30 is provided with a spring for resetting, when the half gear 28 rotates, the rack 29 will move intermittently, and in turn the output shaft of the vacuum piston 30 will move reciprocatingly, so that the vacuum box 26 is vacuumized. Since the vacuum box 26 is connected with the internal space of the first heat dissipation assembly 12, and the internal space of the first heat dissipation assembly 12 is communicated with the internal space of the second heat dissipation assembly 13, the first heat dissipation assembly 12 and the second heat dissipation assembly 13 will be vacuumized, so that the water in them is more easily evaporated.

[0047] When external air enters between the first heat dissipation assembly 12 and the second heat dissipation assembly 13, its heat will be absorbed by the first heat dissipation assembly 12 and the second heat dissipation assembly 13, and the heat will be transferred to the water in them, so that the water is evaporated to take away the heat, thereby improving the heat dissipation effect.

[0048] Example Two

[0049] The dustproof mechanism comprises a base 5, a cam 16, a top rod 17, a water supply square tube 18, a water storage tank 19, a water supply piston 21, a water supply pipe 22, a cleaning motor 6, a cleaning gear transmission set 23, a cleaning lead screw 24, a clean water filter screen 25 and a dustproof filter screen 20. The base 5 is fixedly connected to the lower end of the switch cabinet shell 1, the side wall of the base 5 is fixedly connected with the cleaning motor 6, the output shaft of the cleaning motor 6 is fixedly connected with the cleaning gear transmission set 23, the clean water filter screen 25 is slidably connected with the base 5, and the clean water filter screen 25 is threadedly connected with the cleaning lead screw 24.

[0050] The cam 16 is fixedly connected with the output shaft of the heat dissipation motor 27, the top rod 17 is fixedly connected with the lower surface of the dustproof filter screen 20, the water supply piston 21 is fixedly connected with the side wall of the switch cabinet shell 1, and the output rod of the water supply piston 21 is fixedly connected with the dustproof filter screen 20 and the water supply square tube 18. The clean water filter screen 25 is obliquely arranged in the base 5, and the bottom end of the water supply pipe 22 is located below the clean water filter screen 25.

[0051] Reference Figure 6 Since the cam 16 is also fixedly connected with the output shaft of the heat dissipation motor 27, when the output shaft of the heat dissipation motor 27 rotates, the cam 16 also rotates. The top rod 17 is fixedly connected with the dustproof filter screen 20, and the dustproof filter screen 20 is slidably connected with the inside of the switch cabinet shell 1, so when the cam 16 rotates, the top rod 17 is lifted, and the dustproof filter screen 20 is also lifted. Since the protruding part of the cam 16 intermittently contacts the top rod 17, and the dustproof filter screen 20 falls when it is not in contact with the protruding part of the cam 16. Therefore, the dustproof filter screen 20 moves up and down.

[0052] Reference Figure 6 The output shaft of the water supply piston 21 is also fixedly connected with the dustproof filter screen 20, and the water supply piston 21 is fixedly connected with the switch cabinet shell 1. The water supply pipe 22 is connected with the water inlet end of the water supply piston 21. When the dustproof filter screen 20 reciprocates up and down, the output rod of the water supply piston 21 reciprocates.

[0053] When the output rod of the water supply piston 21 moves upward, the water in the base 5 is sucked into the water supply piston 21, and then is squeezed into the water supply square tube 18. The water supply square tube 18 is connected with a plurality of water storage tanks 19. Since the dustproof filter screen 20 shakes up and down, when there is water in the water storage tank 19, the water will bear the shaking force, and at this time, the water will be quickly lifted to form fine water droplets.

[0054] When the outside air enters the inside of the device through the cooling fan 14, the dust will first contact the dust filter screen 20. Thus forming the first filtration, when the first filtration is completed, the air will contact the water droplets on the dust filter screen 20, so that the heat in the air is further absorbed, and the dust in the air is filtered again. The water droplets that complete the filtration will gradually fall back into the base 5 to complete the recycling. At the same time, the lower surface of the dust filter screen 20 is cleaned to avoid the dust adhering to the lower surface of the dust filter screen 20.

[0055] Because the outside air is first filtered by the dust filter screen 20, and then brought into the base 5 by the water droplets. Therefore, the water in the base 5 will have more dust falling onto the clean water filter screen 25, referring to Figure 11 , the clean water filter screen 25 is inclinedly arranged in the base 5. When the water containing dust falls on the clean water filter screen 25, it will be blocked, so that the dust cannot enter the space below the clean water filter screen 25, and the water inlet end of the water supply pipe 22 is located below the clean water filter screen 25, so when the water supply piston 21 pumps water, it will always be in contact with clean water.

[0056] When the dust on the clean water filter screen 25 is too much, the cleaning motor 6 can be started. When the output shaft of the cleaning motor 6 rotates, the cleaning gear transmission set 23 can be operated, the cleaning gear transmission set 23 is composed of a pair of intermeshing bevel gears, one bevel gear is fixedly connected with the output shaft of the cleaning motor 6, and the other bevel gear is fixedly connected with the cleaning lead screw 24.

[0057] Therefore, when the output shaft of the cleaning motor 6 rotates, one of the bevel gears rotates to drive the other bevel gear to rotate. That is, when the output shaft of the cleaning motor 6 rotates, the cleaning lead screw 24 rotates, and since the clean water filter screen 25 is threadedly connected with the cleaning lead screw 24, when the cleaning lead screw 24 rotates, the clean water filter screen 25 is lifted upward and away from the water in the base 5.

[0058] Since the clean water filter screen 25 is inclinedly arranged in the inside of the base 5, when it is away from the water, it also presents an inclined shape, and water continuously falls from the dust filter screen 20 to clean the clean water filter screen 25. Further avoid the dust accumulation on the clean water filter screen 25.

[0059] Example three: the fire extinguishing mechanism includes a compressed gas tank 7, a nozzle 9, a gas outlet 3, a lifting box 36, a lifting motor 32, a lifting lead screw 35, a partition plate 34, and a column gear transmission set 33. The gas outlet 3 is fixedly connected with the compressed gas tank 7, the nozzle 9 is fixedly connected with the compressed gas tank 7 through the gas outlet 3, and the lifting box 36 is fixedly connected to the lower surface of the compressed gas tank 7.

[0060] The lifting motor 32 is fixedly connected in the compressed gas tank 7, the output shaft of the lifting motor 32 is fixedly connected with the cylindrical gear transmission group 33, and the cylindrical gear transmission group 33 is also rotationally connected with the lifting box 36. The isolation plate 34 is slidingly and sealingly connected in the compressed gas tank 7, and the isolation plate 34 is also threadedly connected with the lifting lead screw 35. The isolation plate 34 is located behind the nozzle 9.

[0061] The inside of the power distribution cabinet shell 1 is fixedly connected with the blocking plate 10, and the upper surface of the blocking plate 10 is fixedly connected with the rubber plate 11. The output shaft of the heat dissipation motor 27 is also fixedly connected with the half gear 28, the inner bottom of the mounting box 4 is fixedly connected with the vacuum piston 30, the output rod of the vacuum piston 30 is fixedly connected with the rack 29, the inside of the mounting box 4 is fixedly connected with the vacuum box 26, the air inlet end of the vacuum piston 30 is communicated with the vacuum box 26, the compressed gas tank 7 is fixedly connected with the air inlet pipe 8, and the cabinet door 2 is rotationally connected with the power distribution cabinet shell 1.

[0062] When a fire occurs inside the device, the lifting motor 32 can be started, the output shaft of the lifting motor 32 is fixedly connected with the cylindrical gear transmission group 33, the cylindrical gear transmission group 33 is composed of two cylindrical gears that mesh with each other, one of which is fixedly connected with the output shaft of the lifting motor 32, and the other is fixedly connected with the lifting lead screw 35. When one gear rotates, the other gear also rotates, thereby causing the lifting lead screw 35 to rotate, since the lifting lead screw 35 is threadedly connected with the isolation plate 34, this will cause the isolation plate 34 to rise, so as to block the gas outlet 3, at the same time, the carbon dioxide introduced through the air inlet pipe 8 enters the device through the nozzle 9, and the flame is extinguished.

[0063] Reference Figure 10 The rubber plate 11 is fixedly connected to the blocking plate 10, and only one side of the rubber plate 11 is fixedly connected to the blocking plate 10. When air enters the inside of the device from below the blocking plate 10, it can push open the rubber plate 11 and enter the inside of the device. When carbon dioxide enters the inside of the device from above the device, it will be blocked by the rubber plate 11, and at the same time, due to the pressure, the rubber plate 11 is tightly attached to the blocking plate 10, thereby isolating the air for fire extinguishing treatment.

[0064] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A power distribution cabinet for smart grid, comprising heat dissipation mechanism, fire extinguishing mechanism, dustproof mechanism, characterized in that, The heat dissipation mechanism comprises a power distribution cabinet shell (1), a heat dissipation motor (27), a heat dissipation fan (14), a isolation cover (15), a first heat dissipation assembly (12) and a second heat dissipation assembly (13). The power distribution cabinet shell (1) is slidably connected with the second heat dissipation assembly (13), the first heat dissipation assembly (12) is fixedly connected with the second heat dissipation assembly (13), the side wall of the power distribution cabinet shell (1) is fixedly connected with a mounting box (4), the heat dissipation motor (27) is fixedly connected to the inner bottom of the mounting box (4), a bevel gear transmission group (31) is fixedly connected to the output shaft of the heat dissipation motor (27), and the heat dissipation fan (14) is rotatably connected to the inner bottom of the power distribution cabinet shell (1). The bevel gear transmission group (31) is located in the isolation cover (15), the isolation cover (15) is fixedly connected to the inner bottom of the power distribution cabinet shell (1), the heat dissipation fan (14) is further rotatably connected with the isolation cover (15), and the output shaft of the heat dissipation motor (27) is rotatably connected with the isolation cover (15).

2. The switchgear panel for smart grid of claim 1, wherein, The fire extinguishing mechanism comprises a compressed gas tank (7), a nozzle (9), a gas outlet (3), a lifting box (36), a lifting motor (32), a lifting screw rod (35), a isolation plate (34) and a cylindrical gear transmission group (33). The gas outlet (3) is fixedly connected with the compressed gas tank (7), the nozzle (9) is fixedly connected with the compressed gas tank (7) through the gas outlet (3), and the lifting box (36) is fixedly connected to the lower surface of the compressed gas tank (7).

3. The switchgear panel for smart grid of claim 2, wherein, The lifting motor (32) is fixedly connected to the inside of the compressed gas tank (7), the output shaft of the lifting motor (32) is fixedly connected with the cylindrical gear transmission group (33), and the cylindrical gear transmission group (33) is further rotatably connected with the lifting box (36).

4. The switchgear panel for smart grid of claim 2, wherein, The isolation plate (34) is slidably and sealingly connected in the compressed gas tank (7), the isolation plate (34) is further threadedly connected with the lifting screw rod (35), and the isolation plate (34) is located behind the nozzle (9).

5. The switchgear panel for smart grid of claim 1, wherein, The dustproof mechanism comprises a base (5), a cam (16), a top rod (17), a water supply square pipe (18), a water storage tank (19), a water supply piston (21), a water supply pipe (22), a cleaning motor (6), a cleaning gear transmission group (23), a cleaning screw rod (24), a clean water filter screen (25) and a dustproof filter screen (20). The base (5) is fixedly connected to the lower end of the power distribution cabinet shell (1), the side wall of the base (5) is fixedly connected with the cleaning motor (6), the output shaft of the cleaning motor (6) is fixedly connected with the cleaning gear transmission group (23), the clean water filter screen (25) is slidably connected with the base (5), and the clean water filter screen (25) is threadedly connected with the cleaning screw rod (24).

6. The switchgear for smart grid of claim 5, wherein, The cam (16) is fixedly connected with the output shaft of the heat dissipation motor (27), the top rod (17) is fixedly connected with the lower surface of the dustproof filter screen (20), the water supply piston (21) is fixedly connected with the side wall of the power distribution cabinet shell (1), and the output rod of the water supply piston (21) is fixedly connected with the dustproof filter screen (20) and the water supply square pipe (18).

7. The switchgear panel for smart grid of claim 5, wherein, The water supply pipe (22) is connected with the water inlet end of the water supply piston (21), the water outlet end of the water supply piston (21) is located in the center of the output shaft, and the water inlet end of the water supply piston (21) is communicated with the internal space of the water supply pipe (18).

8. The power distribution cabinet for smart grid of claim 1, wherein, The clean water filter screen (25) is inclinedly arranged in the base (5), and the bottom end of the water supply pipe (22) is located below the clean water filter screen (25).

9. The power distribution cabinet for smart grid of claim 1, wherein, The inside of the power distribution cabinet shell (1) is fixedly connected with a blocking plate (10), and the upper surface of the blocking plate (10) is fixedly connected with a rubber plate (11).

10. The power distribution cabinet for smart grid of claim 1, wherein, The output shaft of the heat dissipation motor (27) is also fixedly connected with a half gear (28), the inner bottom of the mounting box (4) is fixedly connected with a vacuum piston (30), the output rod of the vacuum piston (30) is fixedly connected with a rack (29), the inside of the mounting box (4) is fixedly connected with a vacuum box (26), the air inlet end of the vacuum piston (30) is communicated with the vacuum box (26), the air inlet pipe (8) is fixedly connected on the compressed gas tank (7), and the cabinet door (2) is rotatably connected on the power distribution cabinet shell (1).

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