A power distribution switch control device

Abstract

The present invention relates to the field of substation components and discloses a distribution switch control device, comprising a switch control cabinet and a base chassis fixedly connected to the ground, wherein multiple groups of air outlets and multiple groups of air inlets are respectively provided on both sides of the switch control cabinet, a crossbeam axis is fixedly installed at the center of the base chassis, an integrated bottom center seat is fixed at the center of the bottom end of the switch control cabinet, and the bottom center seat at the bottom end of the switch control cabinet is sleeved on the crossbeam axis, and the bottom end of the switch control cabinet is parallel to the base chassis and spaced from each other, and further comprises: a magnetic balancing mechanism arranged between the bottom end of the switch control cabinet and the base chassis, and a tumbler structure is arranged in the bottom center seat, so that the distribution switch control cabinet can always stand upright on the base chassis, thereby improving the seismic resistance of the distribution switch control device, and will not tilt during an earthquake, thereby ensuring that internal electrical components will not be damaged and ensuring high operational stability.

Description

Technical Field

[0001] The present invention relates to the field of substation components, and in particular to a distribution switch control device. Background Art

[0002] The transformer substation, also known as the substation, and the distribution switch control cabinet are important electrical equipment in the power system, mainly used to realize the conversion, distribution and control of electric energy. It is usually located in the power distribution room of a power plant, substation or industrial occasion, and is a key link in the conversion and distribution of electric energy in the power system. The main components of the distribution switch control cabinet include: Circuit breaker: used to protect the circuit from abnormal current, short circuit and other faults. The circuit breaker is one of the most important components in the power cabinet, responsible for opening and closing the circuit to achieve reliable control of the circuit. Isolating switch: used to cut off the power supply and isolate the power supply to facilitate the maintenance and repair of electrical equipment. The isolating switch can also be used as a control loop or as a circuit breaker for electrical connection. Operating mechanism: It is a key part of the control switch cabinet. It controls components such as circuit breakers and isolating switches through the transmission mechanism. In mountainous areas and areas prone to earthquakes, power engineering has always been a top priority. However, the existing distribution switch control cabinet is installed on the ground in an integrated manner with the base, and a shock-absorbing mechanism needs to be set up accordingly in different areas. However, when the connection between the ground and the base vibrates, the transformer station distribution switch control cabinet still tilts and shakes with the base, causing damage to the internal electrical components. For this reason, we have proposed a distribution switch control device. Summary of the Invention

[0003] (1) Technical problems solved

[0004] In view of the deficiencies in the prior art, the present invention provides a power distribution switch control device to solve the above-mentioned problems.

[0005] (2) Technical solution

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a power distribution switch control device, comprising a switch control cabinet and a base chassis fixed to the ground, wherein two sides of the switch control cabinet are respectively provided with multiple groups of air outlets and multiple groups of air inlets, a crossbeam axis is fixedly mounted at the center of the base chassis, an integrated bottom center seat is fixed at the center of the bottom end of the switch control cabinet, and the bottom center seat at the bottom end of the switch control cabinet is sleeved on the crossbeam axis, and the bottom end of the switch control cabinet is parallel to and spaced apart from the base chassis, and further comprising:

[0007] A magnetic balancing mechanism is provided between the bottom end of the switch control cabinet and the base chassis, and is used to suspend and fix the switch control cabinet on the base chassis and to provide shockproof protection for the switch control cabinet;

[0008] A tumbler structure is provided in the bottom center seat, which is used to keep the switch control cabinet upright for further earthquake resistance;

[0009] A fume hood is fixedly installed at the position of the air inlet corresponding to the switch control cabinet, and an air flow channel is opened at the port corresponding to each group of air inlets in the fume hood. An accelerating ventilation mechanism is provided between the corresponding multiple groups of air flow channels on the fume hood.

[0010] Preferably, the magnetic balancing mechanism includes magnet plate one, magnet plate two, magnet plate three, and magnet plate four. Magnet plate one is embedded in the bottom end of the switch control cabinet near both sides, and the two groups of magnet plate one are parallel to the bottom center seat. An empty slot is opened inside the base chassis, and two groups of magnet plate two are fixedly installed in the corresponding empty slots of the base chassis. The two groups of magnet plates two are located directly below the two groups of magnet plates one, and the magnet plate two in the base chassis magnetically repel the magnet plate one at the bottom end of the switch control cabinet. Multiple groups of magnet plates four are slidably connected in the middle of the corresponding empty slots in the base chassis, and the multiple groups of magnet plates four are arranged in a horizontal line. Magnet plate three is also slidably connected to one side of the two groups of magnet plates two in the corresponding empty slots of the base chassis, and magnet plate three and magnet plate four both magnetically repel magnet plate one.

[0011] Preferably, the two groups of magnet plates three in the empty slot are respectively located on one side of the two groups of magnet plates two that are close to each other, and the sum of the widths of the magnet plates two and three is the same as the width of the magnet plate one.

[0012] Preferably, the tumbler structure includes a U-shaped groove and a fluid medium, and a U-shaped groove is provided inside the bottom center seat corresponding to the bottom end and both sides of the beam axis, and the cross-section of the U-shaped groove is U-shaped. The U-shaped groove corresponding to the bottom center seat is filled with fluid medium, and the top surfaces of the fluid medium on both sides of the U-shaped groove are flush.

[0013] Preferably, the fluid medium is one of lead particles or sand particles.

[0014] Preferably, the back and front sides of the switch control cabinet are both provided with switch doors.

[0015] Preferably, the multiple groups of air inlets opened on one side of the switch control cabinet are distributed in a matrix of two columns and three rows, that is, the multiple groups of air flow channels in the fume hood are also distributed in a matrix corresponding to the multiple groups of air inlets, and the air flow channels are composed of ventilation transverse groove one, circular through groove and ventilation transverse groove two which are connected in sequence, and the air flow channels are connected to the air inlet through ventilation transverse groove one.

[0016] Preferably, the width and height of the air inlet, ventilation transverse groove 1 and ventilation transverse groove 2 are the same and the axes are located on the same horizontal line, and the axes of ventilation transverse groove 1 and ventilation transverse groove 2 are not located on the same horizontal line as the axis of the circular through groove.

[0017] Preferably, the accelerated ventilation mechanism includes a central shaft, a disc member, a baffle member and a servo motor, and a group of central shafts are rotatably installed in the two corresponding columns of air flow channels in the fume hood, and the central shaft passes through the bottom inner wall of each row of circular grooves from top to bottom, and the position where the central shaft passes through the bottom inner wall of the circular groove is located in the middle of ventilation transverse groove one and ventilation transverse groove two, that is, the central shaft and the circular groove are eccentrically connected, and a disc member is fixedly sleeved in each group of circular grooves on the central shaft, and an annular groove is opened on the bottom inner wall of the circular groove corresponding to the outer ring, and three groups of vertical columns are slidably clamped in the annular groove, and baffle members are respectively hinged between the three groups of vertical columns and the outer ring side walls of the disc member, and two groups of servo motors are fixedly installed on the top of the fume hood, and the output shafts of the two groups of servo motors are respectively fixedly connected to the two groups of central shafts.

[0018] Preferably, the length of the baffle member is greater than the opening width of ventilation transverse groove one and ventilation transverse groove two, and the end side of the baffle member is in contact with the inner wall of the side of the circular through groove. Cavities of different sizes are formed between the three groups of baffle members and the outer wall of the disc member and the inner wall of the circular through groove, and the group of cavities close to ventilation transverse groove one has the smallest volume, and the group of cavities close to ventilation transverse groove two has the largest volume.

[0019] (3) Beneficial effects

[0020] Compared with the prior art, the present invention provides a power distribution switch control device with the following beneficial effects:

[0021] 1. The distribution switch control device changes the traditional connection method between the substation power supply and the ground base, and through the design of the magnetic balance mechanism, utilizes the repulsive magnetic force between magnet plate 1, magnet plate 2, magnet plate 3 and magnet plate 4, so that the switch control cabinet can be suspended and fixed on the base chassis, and effectively reduces the impact of vibration on the distribution switch control cabinet; at the same time, the fluid medium in the tumbler structure can provide restoring force when the cabinet is tilted, further enhancing the stability of the distribution switch control device, improving the seismic resistance of the distribution switch control device, and will not tilt during an earthquake, thereby ensuring that the internal electrical components will not be damaged, ensuring high operational stability, so that the distribution switch control device can be widely used in areas with high earthquake incidence, and improving the practicality and applicability of the distribution switch control device.

[0022] 2. The power distribution switch control device, through the multiple sets of air inlets on both sides of the switch control cabinet, cooperates with the air flow channels and accelerated ventilation mechanism in the fume hood, can effectively guide the airflow into the cabinet, improve the heat dissipation efficiency, and ensure that the power distribution switch control device can maintain a low operating temperature during long-term operation. By accelerating the ventilation inside the switch control cabinet, the cooling effect of electrical components through traditional air cooling is improved.

[0023] 3. The power distribution switch control device is equipped with switch doors on the back and front sides of the switch control cabinet, which facilitates maintenance and management of the interior of the cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the structure of the present invention;

[0025] Figure 2 This is a schematic diagram of the switch control cabinet structure of the present invention;

[0026] Figure 3 It is a cross-sectional view of the connection between the base chassis and the bottom center seat of the present invention;

[0027] Figure 4 It is a schematic cross-sectional view of the base chassis of the present invention;

[0028] Figure 5 This is a schematic cross-sectional view of the bottom center seat of the present invention;

[0029] Figure 6 This is a schematic cross-sectional view of a fume hood according to the present invention;

[0030] Figure 7 for Figure 6 A local enlarged schematic diagram of point A in the figure.

[0031] In the figure: 1. switch control cabinet; 2. base chassis; 3. switch door; 4. beam axis; 5. bottom center seat; 6. servo motor; 7. air outlet; 8. fume hood; 9. air flow channel; 10. magnet plate 1; 11. empty slot; 12. magnet plate 2; 13. magnet plate 3; 14. magnet plate 4; 15. U-shaped slot; 16. fluid medium; 17. air inlet; 18. ventilation transverse slot 1; 19. circular through slot; 20. ventilation transverse slot 2; 21. center axis; 22. disc part; 23. ring groove; 24. vertical column; 25. baffle part. DETAILED DESCRIPTION

[0032] 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.

[0033] See also Figure 1-7A power distribution switch control device includes a switch control cabinet 1 and a base chassis 2 fixed to the ground. The switch control cabinet 1 has multiple groups of air outlets 7 and multiple groups of air inlet 17 on both sides. A crossbeam shaft 4 is fixedly installed at the center of the base chassis 2. An integrated bottom center seat 5 is fixed at the center of the bottom end of the switch control cabinet 1. The bottom center seat 5 at the bottom end of the switch control cabinet 1 is sleeved on the crossbeam shaft 4. The bottom end of the switch control cabinet 1 is parallel to the base chassis 2 and spaced apart from each other. The device also includes:

[0034] A magnetic balancing mechanism is provided between the bottom end of the switch control cabinet 1 and the base chassis 2, and is used to suspend and fix the switch control cabinet 1 on the base chassis 2 and to prevent the switch control cabinet 1 from vibrating;

[0035] A tumbler structure is provided in the bottom center seat 5, which is used to keep the switch control cabinet 1 upright for further earthquake resistance;

[0036] A fume hood 8 is fixedly installed at the position corresponding to the air inlet 17 of the switch control cabinet 1, and an air flow channel 9 is opened at the port corresponding to each group of air inlets 17 in the fume hood 8, and an accelerated ventilation mechanism is provided between the corresponding multiple groups of air flow channels 9 on the fume hood 8.

[0037] The magnetic balancing mechanism includes a magnet plate 10, a magnet plate 2 12, a magnet plate 3 13, and a magnet plate 4 14. The bottom end of the switch control cabinet 1 is embedded with a magnet plate 10 near both sides, and the two sets of magnet plates 10 are parallel to the bottom center seat 5. An empty slot 11 is opened inside the base chassis 2, and two sets of magnet plates 2 12 are fixedly installed in the corresponding empty slots 11 of the base chassis 2. The two sets of magnet plates 2 12 are located directly below the two sets of magnet plates 10, and the magnet plate 2 12 in the base chassis 2 and the magnet plate 10 at the bottom end of the switch control cabinet 1 are magnetically repelled. The middle of the corresponding empty slot 11 in the base chassis 2 is slidably connected. Multiple groups of magnet plates 4 14 are arranged in a horizontal line. A magnet plate 3 13 is also slidably connected to one side of the base chassis 2 corresponding to the two groups of magnet plates 2 12 in the empty slot 11, and the magnet plate 3 13 and the magnet plate 4 14 are magnetically repelled from the magnet plate 1 10. The two groups of magnet plates 3 13 in the empty slot 11 are respectively located on the side where the two groups of magnet plates 2 12 are close to each other. The total width of the magnet plate 2 12 and the magnet plate 3 13 is the same as the width of the magnet plate 10. The switch control cabinet 1 is magnetically repelled by the magnet plates 10 on both sides of the bottom and the magnet plates 2 12 and the magnet plates 3 13 on both sides of the base chassis 2, that is, the switch control The two sides of the bottom of the control cabinet 1 and the two sides of the base chassis 2 generate repulsive forces, so that the switch control cabinet 1 is upright on the base chassis 2. In the event of an earthquake, the base chassis 2 will tilt and shake, that is, at this time, the distance between the two sides of the base chassis 2 and the two sides of the bottom of the switch control cabinet 1 will change, and the distance on one side will increase and the distance on the other side will decrease. The repulsive force between the switch control cabinet 1 and the base chassis 2 on the side with the smaller distance will increase, and the repulsive force between the switch control cabinet 1 and the base chassis 2 on the side with the larger distance will decrease. At this time, the magnet plate 14 and the base chassis 2 will tilt toward the distance as the base chassis 2 tilts. The larger side slides, thereby increasing the repulsive force on the side where the distance between the switch control cabinet 1 and the base chassis 2 becomes larger. At the same time, the magnet plate 3 13 on the side where the distance becomes smaller will slide toward the middle of the base chassis 2, thereby reducing the repulsive force on the side where the distance between the switch control cabinet 1 and the base chassis 2 becomes smaller. As a result, when the base chassis 2 tilts, the repulsive forces on both sides are balanced, thereby ensuring that the switch control cabinet 1 stands upright on the base chassis 2, that is, preventing the switch control cabinet 1 from tilting, thereby improving the seismic resistance of the distribution switch control device, and preventing it from tilting during an earthquake, thereby ensuring that the internal electrical components are not damaged, and ensuring high operational stability.

[0038] The tumbler structure includes a U-shaped groove 15 and a fluid medium 16. The bottom end and both sides of the bottom center seat 5 corresponding to the crossbeam axis 4 are provided with a U-shaped groove 15, and the cross section of the U-shaped groove 15 is U-shaped. The bottom center seat 5 is filled with a fluid medium 16 in the corresponding U-shaped groove 15. The top surfaces of the fluid medium 16 on both sides of the U-shaped groove 15 are flush. The fluid medium 16 is one of lead particles or sand particles. At the same time, due to the design of the bottom center seat 5 at the bottom end of the base chassis 2 and the U-shaped groove 15 opened inside the bottom center seat 5 and filled with the fluid medium 16, the center of gravity of the switch control cabinet 1 as a whole can be lowered, thereby improving stability. Qualitatively, based on the principle of communicating vessels and the principle of the tumbler, when the U-shaped tube is filled with liquid and the liquid levels on both sides are level, it indicates that the system is in a balanced state, that is, when the liquid levels of the fluid medium 16 on both sides of the U-shaped groove 15 tend to be horizontal, the balance of the switch control cabinet 1 can always be maintained, and when the base chassis 2 is tilted, the switch control cabinet 1 can still be upright, thereby further improving the overall seismic resistance and stability of the distribution switch control device; the distribution switch control device can be widely used in areas with high earthquake incidence, thereby improving the practicality and applicability of the high-stability distribution switch control device.

[0039] The back and front sides of the switch control cabinet 1 are both provided with switch doors 3 , and the switch control cabinet 1 can be opened through the switch doors 3 from the front and the back, which is convenient for inspecting and repairing the interior of the switch control cabinet 1 .

[0040] The multiple groups of air inlets 17 opened on one side of the switch control cabinet 1 are distributed in a matrix of two columns and three rows, that is, the multiple groups of air flow channels 9 in the fume hood 8 are also distributed in a matrix corresponding to the multiple groups of air inlets 17. The air flow channel 9 is composed of a ventilation transverse groove 18, a circular through groove 19 and a ventilation transverse groove 20 connected in sequence, and the air flow channel 9 is connected to the air inlet 17 through the ventilation transverse groove 18.

[0041] The width and height of the air inlet 17, the ventilation transverse groove 1 18 and the ventilation transverse groove 2 20 are the same and their axes are located on the same horizontal line. The axes of the ventilation transverse groove 18 and the ventilation transverse groove 2 20 are not located on the same horizontal line as the axis of the circular through groove 19.

[0042] The accelerated ventilation mechanism includes a central shaft 21, a disc member 22, a baffle member 25 and a servo motor 6. A group of central shafts 21 are rotatably installed in the two corresponding rows of air flow channels 9 in the fume hood 8, and the central shaft 21 passes through the bottom inner wall of each row of circular through grooves 19 from top to bottom, and the position where the central shaft 21 passes through the bottom inner wall of the circular through groove 19 is located in the middle of the ventilation transverse groove 18 and the ventilation transverse groove 2 20, that is, the central shaft 21 and the circular through groove 19 are eccentrically connected, and a disc member 22 is fixedly sleeved on the central shaft 21 corresponding to each group of circular through grooves 19, and an annular groove 23 is opened on the bottom inner wall of the circular through groove 19 corresponding to the outer ring, and three groups of vertical columns 24 are slidably clamped in the annular groove 23, and baffle members 25 are respectively hinged between the three groups of vertical columns 24 and the outer ring side walls of the disc member 22. Two groups of servo motors 6 are fixedly installed on the top of the fume hood 8, and the output shafts of the two groups of servo motors 6 are respectively fixedly connected to the two groups of central shafts 21.

[0043] The length of the baffle member 25 is greater than the opening width of the ventilation transverse groove 18 and the ventilation transverse groove 20, and the end side of the baffle member 25 is in contact with the side inner wall of the circular through groove 19. As the disc member 22 rotates, one end side of the baffle member 25 slides in the annular groove 23 through the vertical column 24. Cavities of different sizes are formed between the three groups of baffle members 25 and the outer wall of the disc member 22 and the inner wall of the circular through groove 19, and the volume of the group of cavities close to the ventilation transverse groove 18 is the smallest, and the volume of the group of cavities close to the ventilation transverse groove 20 is the largest.

[0044] Working principle: The switch control cabinet 1 generates a repulsive force between the two sides of the bottom end of the magnet plate 10 and the two sides of the base chassis 2, 13, and the base chassis 2, through the magnetic repulsion between the two sides of the bottom end of the switch control cabinet 1, that is, the two sides of the bottom end of the switch control cabinet 1 and the two sides of the base chassis 2, so that the switch control cabinet 1 is upright on the base chassis 2. In the event of an earthquake, the base chassis 2 will tilt and shake, that is, at this time, the distance between the two sides of the base chassis 2 and the two sides of the bottom end of the switch control cabinet 1 will change, and the distance on one side will increase and the distance on the other side will decrease. The repulsive force between the switch control cabinet 1 and the base chassis 2 on the side with the smaller distance will increase, and the repulsive force between the switch control cabinet 1 and the base chassis 2 on the side with the larger distance will decrease. At this time, the magnet plate four 14 in the base chassis 2 will slide toward the side where the distance between the switch control cabinet 1 and the base chassis 2 becomes larger as the base chassis 2 tilts, thereby increasing the repulsive force on the side where the distance between the switch control cabinet 1 and the base chassis 2 becomes larger. At the same time, the magnet plate three 13 on the side where the distance between the switch control cabinet 1 and the base chassis 2 becomes smaller will slide toward the middle of the base chassis 2, thereby reducing the repulsive force on the side where the distance between the switch control cabinet 1 and the base chassis 2 becomes smaller. As a result, when the base chassis 2 tilts, the repulsive forces on both sides are balanced, thereby ensuring that the switch control cabinet 1 stands upright on the base chassis 2, that is, preventing the switch control cabinet 1 from tilting, thereby improving the seismic resistance of the distribution switch control device, preventing it from tilting during an earthquake, thereby ensuring that the internal electrical components are not damaged, and ensuring high operational stability.

[0045] At the same time, due to the design of the bottom center seat 5 at the bottom end of the base chassis 2 and the U-shaped groove 15 opened inside the bottom center seat 5 and filled with fluid medium 16, the center of gravity of the entire switch control cabinet 1 can be lowered, thereby improving stability. At the same time, based on the principle of communicating vessels and the principle of tumbler, when the U-shaped tube is filled with liquid and the liquid levels on both sides are level, it indicates that the system is in a balanced state, that is, when the liquid levels of the fluid medium 16 on both sides of the U-shaped groove 15 tend to be horizontal, the balance of the switch control cabinet 1 can always be maintained. When the base chassis 2 is tilted, the switch control cabinet 1 can still be upright, thereby further improving the overall seismic resistance and stability of the distribution switch control device; the distribution switch control device can be widely used in areas with high earthquake incidence, thereby improving the practicality and applicability of the high-stability distribution switch control device.

[0046] At the same time, during the operation of the high-stability power distribution switch control device, when the internal electrical components are stably increased, the ventilation cabinet 8 set on one side of the switch control cabinet 1 and the accelerating ventilation mechanism in the ventilation cabinet 8 can accelerate the air circulation inside the switch control cabinet 1 for rapid cooling. At this time, the two groups of servo motors 6 can be driven to drive the two groups of central shafts 21 of the ventilation cabinet 8 to rotate. At this time, the disc members 22 in each group of air flow channels 9 rotate synchronously. When the disc members 22 rotate, the three groups of baffle members 25 on the outside can be driven to rotate, and different sizes are formed between the baffle members 25 and the outer wall of the disc member 22 and the inner wall of the circular through groove 19. The volume of the cavity is the smallest among the cavities near the ventilation groove 1 18, and the volume of the cavity near the ventilation groove 2 20 is the largest. That is, after the air enters the air flow channel 9 through the ventilation groove 2 20, it flows as the baffle 25 rotates, and in the process of approaching the ventilation groove 1 18, the volume of the cavity gradually decreases, so that the air can be compressed, and when the compressed air encounters the ventilation groove 1 18, it will accelerate through the air inlet 17 to enter the interior of the switch control cabinet 1, thereby accelerating the ventilation inside the switch control cabinet 1, that is, improving the effect of cooling the electrical components by the traditional air cooling method.

[0047] 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. A power distribution switch control device, comprising a switch control cabinet (1) and a base chassis (2) fixed to the ground, wherein two sides of the switch control cabinet (1) are respectively provided with a plurality of groups of air outlets (7) and a plurality of groups of air inlets (17), characterized in that: A beam shaft (4) is fixedly mounted at the center of the base chassis (2), an integrated bottom center seat (5) is fixedly mounted at the center of the bottom end of the switch control cabinet (1), and the bottom center seat (5) at the bottom end of the switch control cabinet (1) is sleeved on the beam shaft (4), and the bottom end of the switch control cabinet (1) is parallel to the base chassis (2) and spaced apart from each other, and further comprises: A magnetic balancing mechanism is provided between the bottom end of the switch control cabinet (1) and the base chassis (2), and is used to suspend and fix the switch control cabinet (1) on the base chassis (2) and to provide shockproofing for the switch control cabinet (1); A tumbler structure is provided in the bottom center seat (5), and the tumbler structure is used to keep the switch control cabinet (1) upright for further earthquake resistance; A fume hood (8) is fixedly mounted on the switch control cabinet (1) at a position corresponding to the air inlet (17), and an air flow channel (9) is provided at a port corresponding to each group of air inlets (17) in the fume hood (8), and an accelerating ventilation mechanism is provided between the corresponding groups of air flow channels (9) on the fume hood (8); The magnetic balancing mechanism includes a magnet plate one (10), a magnet plate two (12), a magnet plate three (13), and a magnet plate four (14). The bottom end of the switch control cabinet (1) is embedded with a magnet plate one (10) near both sides, and the two groups of magnet plates one (10) are parallel to the bottom center seat (5). An empty slot (11) is opened inside the base chassis (2), and two groups of magnet plates two (12) are fixedly installed in the corresponding empty slots (11) of the base chassis (2). The two groups of magnet plates two (12) are located between the two groups of magnet plates one (10). Directly below, the second magnet plate (12) in the base chassis (2) and the first magnet plate (10) at the bottom of the switch control cabinet (1) are magnetically repelled, and a plurality of sets of fourth magnet plates (14) are slidably connected in the middle of the corresponding empty slot (11) in the base chassis (2), and the plurality of sets of fourth magnet plates (14) are arranged in a horizontal line, and a third magnet plate (13) is also slidably connected to one side of the two sets of second magnet plates (12) in the corresponding empty slot (11) of the base chassis (2), and both the third magnet plate (13) and the fourth magnet plate (14) are magnetically repelled from the first magnet plate (10); The two groups of magnet plates three (13) in the empty slot (11) are respectively located on the side where the two groups of magnet plates two (12) are close to each other, and the sum of the widths of the magnet plates two (12) and three (13) is the same as the width of the magnet plate one (10).

2. A power distribution switch control device according to claim 1, characterized in that: The tumbler structure comprises a U-shaped groove (15) and a fluid medium (16); the bottom end and both sides of the bottom center seat (5) corresponding to the crossbeam axis (4) are provided with a U-shaped groove (15); the cross section of the U-shaped groove (15) is U-shaped; the U-shaped groove (15) corresponding to the bottom center seat (5) is filled with the fluid medium (16); and the top surfaces of the fluid medium (16) on both sides of the U-shaped groove (15) are flush.

3. A power distribution switch control device according to claim 2, characterized in that: The fluid medium (16) is one of lead particles or sand particles.

4. A power distribution switch control device according to claim 1, characterized in that: The back side and the front side of the switch control cabinet (1) are both provided with switch doors (3).

5. The power distribution switch control device according to claim 1, characterized in that: The plurality of air inlets (17) opened on one side of the switch control cabinet (1) are arranged in a matrix of two columns and three rows, that is, the plurality of air flow channels (9) in the fume hood (8) are also arranged in a matrix corresponding to the plurality of air inlets (17), and the air flow channels (9) are composed of a ventilation transverse groove 1 (18), a circular through groove (19) and a ventilation transverse groove 2 (20) which are connected in sequence, and the air flow channels (9) are connected to the air inlets (17) through the ventilation transverse groove 1 (18).

6. A power distribution switch control device according to claim 5, characterized in that: The width and height of the air inlet (17), ventilation transverse groove one (18) and ventilation transverse groove two (20) are the same and their axes are located on the same horizontal line. The axes of ventilation transverse groove one (18) and ventilation transverse groove two (20) are not located on the same horizontal line as the axis of the circular through groove (19).

7. A power distribution switch control device according to claim 6, characterized in that: The accelerated ventilation mechanism comprises a central shaft (21), a disc member (22), a baffle member (25) and a servo motor (6). A set of central shafts (21) are rotatably installed in the two corresponding rows of air flow channels (9) in the fume hood (8), and the central shafts (21) sequentially penetrate the bottom inner wall of each row of circular through grooves (19) from top to bottom, and the position where the central shaft (21) penetrates the bottom inner wall of the circular through groove (19) is located between the ventilation transverse groove 1 (18) and the ventilation transverse groove 2 (20), that is, the central shaft (21) and the circular through groove (19) are eccentrically connected. A disc member (22) is fixedly sleeved in each row of circular grooves (19) on the central shaft (21); an annular groove (23) is provided on the bottom inner wall of the circular groove (19) corresponding to the outer ring, and three groups of vertical columns (24) are slidably engaged in the annular groove (23); baffle members (25) are respectively hinged between the three groups of vertical columns (24) and the outer ring side walls of the disc member (22); two groups of servo motors (6) are fixedly installed on the top of the fume hood (8), and the output shafts of the two groups of servo motors (6) are respectively fixedly connected to the two groups of central shafts (21).

8. A power distribution switch control device according to claim 7, characterized in that: The length of the baffle member (25) is greater than the opening width of the ventilation transverse groove 1 (18) and the ventilation transverse groove 2 (20), and the end side of the baffle member (25) is in contact with the inner wall of the side of the circular through groove (19). Cavities of different sizes are formed between the three groups of baffle members (25) and the outer wall of the disc member (22) and the inner wall of the circular through groove (19), and the volume of the cavity of the group close to the ventilation transverse groove 1 (18) is the smallest, and the volume of the cavity of the group close to the ventilation transverse groove 2 (20) is the largest.

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