Low-voltage switchgear assembly

Abstract

The invention relates to low-voltage complete switch equipment, and relates to the technical field of power distribution cabinets, the low-voltage complete switch equipment comprises a cabinet body and a second limiting ring, a servo motor is fixedly arranged on one side in the cabinet body through a motor mounting block, and the output end of the servo motor penetrates through the motor mounting block and is fixedly connected with a lead screw through a coupler; the outer wall of the lead screw is sleeved with a first sliding block in a threaded mode, two fixing bases are fixedly arranged at the end, away from the servo motor, of one side in the cabinet body, a fixing rod is fixedly arranged between the two fixing bases, the outer wall of the fixing rod is sleeved with a second sliding block in a sliding mode, and a first mounting plate is fixedly arranged between the first sliding block and the second sliding block. And a plurality of cooling fans are fixedly mounted on one side of the first mounting plate through screws. The heat dissipation structure is arranged right opposite to the electronic elements and can move, all the electronic elements in the cabinet body are cooled through blowing, and the good heat dissipation effect is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of power distribution cabinets, in particular to a low-voltage complete switchgear. Background Art

[0002] High and low voltage switchgear sets are an indispensable part of the power system. They are mainly composed of high voltage switchgear, low voltage switchgear and transformers. These devices play a vital role in the power generation, transmission, transformation and distribution of the power system. They can not only realize the reasonable distribution of electric energy, distribute high voltage power to various power consumption areas, and then distribute electric energy to different power consumption equipment through low voltage switchgear, but also control and protect the power system. When a circuit fault occurs, such as short circuit, overload, etc., the protection device in the complete set of equipment will act quickly to cut off the fault circuit and protect equipment and personnel. Through reasonable design and configuration, it ensures the stable operation of the power system and reduces the occurrence of power outages. It is widely used in various fields such as industry, commerce, and civil use, such as factories, shopping malls, hospitals, and residential areas. It is a key equipment to ensure the safe, stable, and efficient operation of the power system. In the existing technology, traditional low-voltage complete switchgear mostly adopts a fixed or drawer-type structure, which has the following problems: the internal components of the equipment are densely arranged, and natural heat dissipation or traditional air cooling methods cannot quickly dissipate heat, resulting in overheating of key components (such as circuit breaker contacts and busbars), which accelerates the aging of insulation materials.

[0003] An existing patent (publication number: CN119627694B) discloses a high- and low-voltage complete switchgear assembly, belonging to the field of switchgear. The complete switchgear assembly includes a switch cabinet, and further includes: ventilation ducts symmetrically arranged on the side walls of the switch cabinet, with a heat dissipation and dust removal assembly disposed within the ventilation ducts to dissipate heat from electrical equipment within the switch cabinet and prevent dust from entering; a flow guide mechanism disposed on the inner wall of the switch cabinet near the ventilation duct, with a portion of the heat dissipation and dust removal assembly connected to the flow guide mechanism and capable of driving a portion of the flow guide mechanism to rotate back and forth; and a cleaning mechanism disposed on the outer wall of the switch cabinet near the ventilation duct, with a portion of the flow guide mechanism connected to the cleaning mechanism and capable of driving a portion of the cleaning mechanism to rotate back and forth along the end of the ventilation duct. This invention overcomes the problems of uneven and poor heat dissipation from electrical equipment within the complete switchgear assembly, as well as untimely cleaning of dust shields and poor dehumidification.

[0004] Regarding the above-mentioned related technologies, since the electronic components installed in the equipment are of different sizes, when blowing air on the electrical components, the longer electronic components installed inside will inevitably block the wind, resulting in the electrical components on one side having to rely on natural wind to dissipate heat. In this case, the wind cannot pass through the longer structure to cool the lower components, resulting in poor cooling efficiency of some internal electronic components and inability to evenly dissipate heat in the internal structure. The device proposes a low-voltage switch cabinet to solve the problem of low heat dissipation efficiency. Summary of the Invention

[0005] 1. Technical problems solved The purpose of this application is to provide a low-voltage complete switchgear to solve the problem of heat dissipation in a low-voltage switch cabinet.

[0006] The low-voltage complete switchgear provided in this application adopts the following technical solution: A low-voltage complete switchgear device comprises a cabinet body and a second limiting ring, a servo motor is fixedly installed on one side of the interior of the cabinet body via a motor mounting block, an output end of the servo motor passes through the motor mounting block and is fixedly connected to a lead screw via a coupling, a first slider is provided on a threaded sleeve on the outer wall of the lead screw, two fixing seats are fixedly provided on one end of the interior of the cabinet body away from the servo motor, a fixing rod is fixedly provided between the two fixing seats, a second slider is provided on a sliding sleeve on the outer wall of the fixing rod, a first mounting plate is fixedly provided between the first and second sliders, and a plurality of cooling fans are fixedly installed on one side of the first mounting plate via screws; By adopting the above technical solution, a movable structure, an auxiliary structure and a cooling fan are set, and the lead screw is driven to rotate by a servo motor to move the first slider and the second slider, thereby moving the first mounting plate up and down. During the up and down movement of the first mounting plate, a cooling fan fixed on one side thereof blows air to the electronic components inside the cabinet to dissipate heat. This setting sets the cooling structure directly opposite the electronic components and is movable. Compared with the cooling structure fixed on one side, this setting will not have larger electronic components blocking the wind force, resulting in the electrical components on one side having to rely on natural wind force to dissipate heat. In this case, the wind force cannot pass through the longer structure to cool the lower components, resulting in poor cooling efficiency of some internal electronic components. The cooling fan has the function of blowing air to cool all the electronic components in the cabinet, thereby achieving better heat dissipation effect.

[0007] Preferably, a fixing block is fixedly provided on one side of the first mounting plate, an inclined plate is fixedly provided on one side of the fixing block, an industrial camera is fixedly provided on one side of the inclined plate, a lens is provided on a threaded sleeve of the acquisition end of the industrial camera, and the industrial camera is connected to an external display structure; By adopting the above technical solution, during the up and down movement of the first mounting plate, the image inside the cabinet is collected by the industrial camera. Through the display structure connected to the outside world, the operator can observe the internal situation of the cabinet at any time. By setting the inclined plate, the collection field of view of the industrial camera can be increased to avoid blind spots.

[0008] Preferably, the inner walls at both ends of the cabinet are provided with a slide groove, and a moving block is slidably nested in the two slide grooves. A second mounting plate is fixedly connected between the two moving blocks via an internally rotatable connecting column, and a plurality of mounting holes are arrayed in the interior of the second mounting plate, and the distance between each of the plurality of mounting holes is the same as the hole spacing provided in the heat dissipation fan. By adopting the above technical solution, the second mounting plate is enabled to move by setting a slide groove and a moving block, and the distance between each mounting hole is set to be the same as the spacing between the holes opened inside the heat dissipation fan. When the power of the electronic components in a certain area is large and the heat generated is high, the heat dissipation fan is fixed on the second mounting plate and the second mounting plate is moved so that the heat dissipation fan is aimed at the area, and targeted air blowing and heat dissipation are performed, and this setting does not affect the heat dissipation of the mobile heat dissipation structure.

[0009] Preferably, a first connecting block is fixedly provided on one side of the bottom end of the second mounting plate, two magnets are magnetically connected to the bottom end of the cabinet, a second connecting block is fixedly provided on the upper ends of the two magnets, and a limiting column is fixedly provided between the first connecting block and the second connecting block, and the outer walls of the two limiting columns are provided with springs; By adopting the above technical solution and setting up a fixed structure, when moving the second mounting plate, the second connecting block is lifted upward to compress the spring, thereby facilitating the movement of the second mounting plate. After the movement is completed, release the hand, the spring is reset, and the magnet is adsorbed on the cabinet body, thereby completing the fixation of the moved second mounting plate.

[0010] Preferably, one side of the second mounting plate is fixedly connected to a mounting bar via a mounting bolt passing through one of the mounting holes, a first limiting ring is fixedly provided on one side of the mounting bar, fastening bolts are passed through the insides of both ends of the first limiting ring and the second limiting ring, and a flashlight is fixedly provided between the first limiting ring and the second limiting ring; By adopting the above technical solution, when the staff inspect and repair the internal components, the light source will be blocked, resulting in shadows, which is inconvenient for observation, and it is inconvenient to operate a hand-held flashlight. When the headlamp shakes, the irradiation area will be incorrect and needs to be adjusted. The flashlight is fixed by setting a limiting structure composed of a first limiting ring and a second limiting ring. This setting does not require the staff to hold it, and the device is fixed by installing bolts, which is convenient for adjusting the position of the flashlight. At the same time, the first mounting plate is rotatably arranged inside the moving block through the connecting columns at both ends. During irradiation, the irradiation angle can be adjusted, which further facilitates the staff to inspect and repair the internal electronic components.

[0011] Preferably, a plurality of ventilation holes are provided through the inner walls on both sides of the cabinet body, and a plurality of dust covers are fixedly provided on both sides of the outer wall of the cabinet body, and the plurality of dust covers correspond to the ventilation holes; By adopting the above technical solution, the ventilation holes are used to form air convection for heat dissipation, and a dust cover is provided on the outside to reduce dust from entering the cabinet.

[0012] Preferably, a bearing seat is nested on the outer wall of the end of the screw rod away from the servo motor, and the bearing seat is fixedly connected to the inner wall of the cabinet; By adopting the above technical solution, the bearing seat supports the end of the screw rod away from the servo motor, thereby ensuring the normal working environment of the screw rod.

[0013] Preferably, one side of the cabinet body is rotatably connected to a cabinet door via two rotating hinges, and one side of the cabinet door is fixedly provided with a handle; By adopting the above technical solution, the cabinet door is sealed to one side of the cabinet body, and the cabinet door can be conveniently operated, opened and closed by the handle.

[0014] 2. Beneficial effects In summary, this application includes at least one of the following beneficial technical effects: 1. The present invention provides a low-voltage complete switchgear, which is provided with a movable structure, an auxiliary structure and a heat dissipation fan. The servo motor drives the screw rod to rotate, so that the first slider and the second slider are moved, and then the first mounting plate is moved up and down. During the up and down movement of the first mounting plate, the heat dissipation fan fixed on one side thereof blows air to the electronic components inside the cabinet to dissipate heat. This arrangement sets the heat dissipation structure directly opposite the electronic components and is movable. Compared with the heat dissipation structure being fixed on one side, this arrangement will not cause larger electronic components to block the wind force, resulting in the electrical components on one side having to rely on natural wind force to dissipate heat. In this case, the wind force cannot pass through the longer structure to cool the lower components, resulting in poor cooling efficiency of some internal electronic components. The device has the function of blowing air to cool all the electronic components in the cabinet, thereby achieving better heat dissipation effect.

[0015] 2. The present invention provides a low-voltage complete switchgear, which enables the second mounting plate to be movable by arranging a slide groove and a movable block. By arranging the distance between the mounting holes to be the same as the spacing between the holes opened inside the heat dissipation fan, when the electronic components in a certain area have high power and generate high heat, the heat dissipation fan is fixed on the second mounting plate and the second mounting plate is moved so that the heat dissipation fan is aimed at the area, so as to carry out targeted air blowing and heat dissipation, and this arrangement does not affect the heat dissipation of the mobile heat dissipation structure. Through this arrangement, while not affecting the heat dissipation of the other electronic components by the mobile heat dissipation structure, the components that generate higher heat can also be dissipated in a targeted manner.

[0016] 3. The present invention provides a low-voltage complete switchgear. By setting up a lighting structure, the light source will be blocked when the staff repair the internal components, resulting in shadows, which is inconvenient to observe, and it is inconvenient to operate with a hand-held flashlight. When the headlamp shakes, the irradiation area will be incorrect and needs to be adjusted. The flashlight is fixed by setting a limiting structure composed of a first limiting ring and a second limiting ring. This setting does not require the staff to hold it, and the device is fixed by installing bolts, which is convenient for adjusting the position of the flashlight. At the same time, the first mounting plate is rotatably set inside the moving block through the connecting columns at both ends. During irradiation, the irradiation angle can be adjusted, which further facilitates the staff to repair the internal electronic components. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 Schematic diagram of the heat dissipation structure of the present invention; Figure 3 It is a schematic diagram of the adjustment structure of the present invention; Figure 4 For the present invention Figure 2 Enlarged view of point A in the middle; Figure 5 For the present invention Figure 3 Enlarged view of point B in the middle; Figure 6 For the present invention Figure 3 Enlarged view of point C in the middle.

[0018] Among them, 1. cabinet; 2. servo motor; 3. coupling; 4. screw; 5. first slider; 6. bearing seat; 7. fixed seat; 8. fixed rod; 9. second slider; 10. first mounting plate; 11. cooling fan; 12. fixed block; 13. inclined plate; 14. industrial camera; 15. lens; 16. slide; 17. moving block; 18. second mounting plate; 19. mounting hole; 20. first connecting block; 21. magnet; 22. second connecting block; 23. limiting column; 24. spring; 25. mounting bolt; 26. mounting strip; 27. first limiting ring; 28. fastening bolt; 29. ​​second limiting ring; 30. flashlight; 31. ventilation hole; 32. dust cover; 33. cabinet door; 34. handle. DETAILED DESCRIPTION

[0019] The following is combined with Figure 1 -Attached Figure 6 , further details of this application are given.

[0020] Example 1: A low voltage switchgear assembly, referring to Figure 1 、 Figure 2 and Figure 6 , including a cabinet 1 and a second limit ring 29, a servo motor 2 is fixedly provided on one side of the interior of the cabinet 1 through a motor mounting block, the servo motor 2 is a power structure for driving the screw rod 4 to rotate, thereby realizing the movement of the heat dissipation device, the output end of the servo motor 2 passes through the motor mounting block and is fixedly connected to the screw rod 4 through a coupling 3, the coupling 3 is used to connect the output end of the servo motor 2 and the structure of the screw rod 4, transmit power to make the screw rod 4 rotate, a first slider 5 is provided on the outer wall of the screw rod 4, two fixed seats 7 are fixedly provided on one end of the interior of the cabinet 1 away from the servo motor 2, a fixed rod 8 is fixedly provided between the two fixed seats 7, a second slider 9 is provided on the outer wall sliding sleeve of the fixed rod 8, a first mounting plate 10 is fixedly provided between the first slider 5 and the second slider 9, a plurality of cooling fans 11 are fixedly installed on one side of the first mounting plate 10 by screws, a bearing seat 6 is nested on the outer wall of the screw rod 4 away from the servo motor 2, and the bearing seat 6 is fixedly connected to the inner wall of the cabinet 1.

[0021] The technical solution of the above-mentioned device is to set a movable structure, an auxiliary structure and a cooling fan 11, and drive the screw 4 to rotate through the servo motor 2 to move the first slider 5 and the second slider 9, thereby moving the first mounting plate 10 up and down. During the up and down movement of the first mounting plate 10, the cooling fan 11 fixed on one side blows air to the electronic components inside the cabinet 1 to dissipate heat. This setting sets the cooling structure directly opposite the electronic components and can move. Compared with the cooling structure fixed on one side, this setting will not have larger electronic components blocking the wind, resulting in the electrical components on one side having to rely on natural wind to dissipate heat. In this case, the wind cannot pass through the longer structure to cool the lower components, resulting in poor cooling efficiency of some internal electronic components. It has the function of blowing air to cool all electronic components in the cabinet 1, achieving better heat dissipation effect.

[0022] Example 2: A low voltage switchgear assembly, referring to Figure 4 A fixed block 12 is fixedly provided on one side of the first mounting plate 10, an inclined plate 13 is fixedly provided on one side of the fixed block 12, an industrial camera 14 is fixedly provided on one side of the inclined plate 13, and a lens 15 is threadedly provided on the acquisition end of the industrial camera 14, and the industrial camera 14 is connected to the external display structure.

[0023] The technical solution of the above-mentioned device is that during the up and down movement of the first mounting plate 10, the image inside the cabinet 1 is collected by the industrial camera 14. Through the display structure connected to the outside world, the operator can observe the internal situation of the cabinet 1 at any time. By setting the inclined plate 13, the collection field of view of the industrial camera 14 can be increased to avoid blind spots.

[0024] Example 3: A low voltage switchgear assembly, referring to Figure 2 and Figure 3 The inner walls at both ends of the cabinet 1 are provided with sliding grooves 16, and moving blocks 17 are slidably nested inside the two sliding grooves 16. The two moving blocks 17 are fixedly connected to a second mounting plate 18 through an internally rotatable connecting column. A plurality of mounting holes 19 are arranged in an array inside the second mounting plate 18, and the distance between the plurality of mounting holes 19 is the same as the hole spacing opened inside the cooling fan 11.

[0025] The technical solution of the above-mentioned device is to set a slide groove 16 and a movable block 17 so that the second mounting plate 18 can be moved. The distance between each mounting hole 19 is set to be the same as the hole spacing opened inside the heat dissipation fan 11. When the electronic components in a certain area have high power and generate high heat, the heat dissipation fan 11 is fixed on the second mounting plate 18, and the second mounting plate 18 is moved so that the heat dissipation fan 11 is aimed at the area for targeted blowing and heat dissipation. This setting does not affect the heat dissipation of the mobile heat dissipation structure. Through this setting, while not affecting the heat dissipation of the remaining electronic components by the mobile heat dissipation structure, it is also possible to dissipate heat for the components that generate higher heat in a targeted manner.

[0026] Example 4: A low voltage switchgear assembly, referring to Figure 5 and Figure 6 One side of the second mounting plate 18 is fixedly connected to a mounting bar 26 through a mounting bolt 25 passing through one of the mounting holes 19. A first limiting ring 27 is fixedly provided on one side of the mounting bar 26. Fastening bolts 28 are provided through the inside of both ends of the first limiting ring 27 and the second limiting ring 29. A flashlight 30 is fixed between the first limiting ring 27 and the second limiting ring 29.

[0027] A first connecting block 20 is fixedly provided on one side of the bottom end of the second mounting plate 18, and two magnets 21 are magnetically connected to the bottom end of the cabinet 1. A second connecting block 22 is fixedly provided on the upper ends of the two magnets 21. A limiting column 23 is fixedly provided between the first connecting block 20 and the second connecting block 22, and a spring 24 is provided on the outer wall of the two limiting columns 23.

[0028] The technical solution of the above-mentioned device is to set up a lighting structure. When the staff is inspecting the internal components, the light source will be blocked, resulting in shadows, which is inconvenient to observe, and it is inconvenient to operate the hand-held flashlight 30. When the headlamp shakes, the irradiation area will be incorrect and needs to be adjusted. The flashlight 30 is fixed by setting a limiting structure composed of a first limiting ring 27 and a second limiting ring 29. This setting does not require the staff to hold it, and the device is fixed by installing bolts 25, which is convenient for adjusting the position of the flashlight 30. At the same time, the first mounting plate 10 is rotatably set inside the moving block 17 through the connecting columns at both ends. During irradiation, the irradiation angle can be adjusted, which further facilitates the staff to inspect the internal electronic components.

[0029] Example 5: A low voltage switchgear assembly, referring to Figure 1 and Figure 3 A plurality of ventilation holes 31 are provided on the inner walls on both sides of the cabinet body 1, and a plurality of dust covers 32 are fixedly provided on both sides of the outer wall of the cabinet body 1. The plurality of dust covers 32 correspond to the ventilation holes 31. A cabinet door 33 is rotatably connected to one side of the cabinet body 1 through two rotating hinges, and a handle 34 is fixedly provided on one side of the cabinet door 33.

[0030] The technical solution of the above device is that the ventilation hole 31 is used to form air convection for heat dissipation, and a dust cover 32 is provided on the outside to reduce dust from entering the cabinet 1. The cabinet door 33 seals one side of the cabinet 1, and the handle 34 is used to facilitate the operation, opening and closing of the cabinet door 33.

[0031] The implementation principle of the embodiment of this application is: When the device is in use, the servo motor 2 is started to drive the screw rod 4 to rotate, driving the first slider 5 connected by the thread to move up and down along the screw rod 4; at the same time, the second slider 9 slides synchronously along the fixed rod 8 to ensure that the first mounting plate 10 moves horizontally and stably. While moving, multiple cooling fans 11 on the first mounting plate 10 move up and down with the mounting plate to blow air to all electronic components inside the cabinet 1, reducing the heat dissipation blind area caused by the obstruction of components in the fixed heat dissipation structure and improving the heat dissipation uniformity. When the first mounting plate 10 moves, the industrial camera 14 fixed on one side of the inclined plate 13 moves up and down synchronously, using the inclined plate 13 to expand the acquisition field of view and reduce There are few blind spots. The industrial camera 14 collects the internal image of the cabinet 1 through the lens 15 and transmits it to the external display structure, so that the operator can observe the status of the internal components in real time, which is convenient for timely detection of abnormalities. When the electronic components in a certain area generate a lot of heat, the cooling fan 11 is installed on the second mounting plate 18 through the mounting hole 19 by screws, and then the second mounting plate 18 is moved by sliding the moving block 17 in the slide groove 16 at the upper and lower ends of the cabinet 1 to move the second mounting plate 18 so that the cooling fan 11 is aligned, the heat is dissipated in a targeted manner, and it complements the mobile heat dissipation structure. While moving the second mounting plate 18, the second connecting block 22 is lifted upward to compress the spring 24. , it is convenient to move the second mounting plate 18. After the movement is completed, let go, the spring 24 resets, the magnet 21 is adsorbed with the cabinet 1, and the second mounting plate 18 is fixed after the movement. When the internal structure needs to be inspected, the flashlight 30 is placed between the first limiting ring 27 and the second limiting ring 29, and the nut is screwed on the outer wall bolt of the end of the fastening bolt 28 extending out of the first limiting ring 27 to complete the clamping and fixing of the flashlight 30. Then, according to the position to be inspected, the mounting strip 26 is fixed with the mounting bolt 25. After the fixation is completed, the second mounting plate 1 is adjusted according to the adjustment method of the cooling fan 11. 8 is moved to move the position of the flashlight 30. While moving the second mounting plate 18, the second connecting block 22 is lifted upward to compress the spring 24 to facilitate the movement of the second mounting plate 18. After the movement is completed, release the hand, the spring 24 is reset, and the magnet 21 is adsorbed on the cabinet 1 to complete the fixation of the moved second mounting plate 18. The various structures cooperate with each other: the mobile heat dissipation and the ventilation holes 31 form air circulation, targeted heat dissipation strengthens local cooling, the industrial camera 14 monitors the internal status in real time, and the auxiliary maintenance system improves the convenience of maintenance, so as to achieve efficient and stable operation of the equipment and reliable management of the entire life cycle.

[0032] The examples of this specific embodiment are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, any equivalent changes made based on the structure, shape, and principle of this application should be included in the scope of protection of this application.

Claims

1. A low-voltage complete switchgear assembly, comprising a cabinet (1) and a second limiting ring (29), characterized in that: A servo motor (2) is fixedly provided on one side of the interior of the cabinet (1) through a motor mounting block. The output end of the servo motor (2) passes through the motor mounting block and is fixedly connected to a screw rod (4) through a coupling (3). A first slider (5) is provided on the outer wall thread sleeve of the screw rod (4). Two fixing seats (7) are fixedly provided on the end of the interior of the cabinet (1) away from the servo motor (2). A fixing rod (8) is fixedly provided between the two fixing seats (7). A second slider (9) is provided on the outer wall sliding sleeve of the fixing rod (8). A first mounting plate (10) is fixedly provided between the first slider (5) and the second slider (9). A plurality of cooling fans (11) are fixedly provided on one side of the first mounting plate (10) through screws.

2. The low-voltage switchgear assembly according to claim 1, characterized in that: A fixed block (12) is fixedly provided on one side of the first mounting plate (10), an inclined plate (13) is fixedly provided on one side of the fixed block (12), an industrial camera (14) is fixedly provided on one side of the inclined plate (13), a lens (15) is provided on a threaded sleeve at a collection end of the industrial camera (14), and the industrial camera (14) is connected to an external display structure.

3. The low-voltage complete switchgear according to claim 1, characterized in that: The inner walls at both ends of the cabinet (1) are provided with a sliding groove (16), and a moving block (17) is provided inside the two sliding grooves (16) for sliding nesting. The two moving blocks (17) are fixedly connected to a second mounting plate (18) via an internally rotatable connecting column, and a plurality of mounting holes (19) are provided in an array inside the second mounting plate (18), and the distance between the plurality of mounting holes (19) is the same as the hole spacing provided inside the heat dissipation fan (11).

4. The low-voltage switchgear assembly according to claim 3, characterized in that: A first connecting block (20) is fixedly provided on one side of the bottom end of the second mounting plate (18); two magnets (21) are magnetically connected to the bottom end of the cabinet (1); a second connecting block (22) is fixedly provided on the upper ends of the two magnets (21); a limiting column (23) is fixedly provided between the first connecting block (20) and the second connecting block (22); and a spring (24) is provided on the outer wall of the two limiting columns (23).

5. The low-voltage switchgear assembly according to claim 3, characterized in that: One side of the second mounting plate (18) is fixedly connected to a mounting bar (26) through one of the mounting holes (19) via a mounting bolt (25); a first limiting ring (27) is fixedly provided on one side of the mounting bar (26); fastening bolts (28) are provided through the insides of both ends of the first limiting ring (27) and the second limiting ring (29); and a flashlight (30) is fixedly provided between the first limiting ring (27) and the second limiting ring (29).

6. The low-voltage switchgear assembly according to claim 1, characterized in that: Multiple ventilation holes (31) are provided through the inner walls on both sides of the cabinet body (1), and multiple dust covers (32) are fixedly provided on both sides of the outer wall of the cabinet body (1), and the multiple dust covers (32) correspond to the ventilation holes (31).

7. The low-voltage switchgear assembly according to claim 1, characterized in that: A bearing seat (6) is nested in the outer wall of one end of the screw rod (4) away from the servo motor (2), and the bearing seat (6) is fixedly connected to the inner wall of the cabinet (1).

8. The low-voltage switchgear assembly according to claim 1, characterized in that: One side of the cabinet body (1) is rotatably connected to a cabinet door (33) via two rotating hinges, and one side of the cabinet door (33) is fixedly provided with a handle (34).

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