Pre-assembled low-voltage electrical cabinet

Abstract

The invention relates to the technical field of electrical cabinets, and discloses a preassembled low-voltage electrical cabinet, which comprises a mounting frame fixed on a cabinet body, a ventilation opening is formed in the mounting frame, a plurality of groups of parallel first condensation plates are rotatably arranged on the inner side of the ventilation opening, and a first electric push rod is fixed on the inner wall of the mounting frame. And a first toothed plate is fixed to the output end of the first electric push rod, a first rotating shaft is fixed to the surface of the first condensation plate, the first rotating shaft is rotationally connected with the mounting frame, and a first gear meshed with the first toothed plate is fixed to the circumference of the first rotating shaft. According to the technical scheme, when it is detected that the humidity is large, the first condensation plate is in an inclined state through swinging of the first condensation plate, so that the speed of humid air entering the cabinet body is reduced, the contact time of the humid air and the first condensation plate is prolonged, and the condensation effect of the humid air is improved.

Description

Technical Field

[0001] This invention relates to the field of electrical cabinet technology, specifically a pre-assembled low-voltage electrical cabinet. Background Technology

[0002] Pre-assembled low-voltage electrical cabinets are modularly designed power distribution equipment that integrates intelligent monitoring modules to collect operating parameters in real time and optimize energy consumption management. Compared with traditional distribution cabinets, pre-assembled designs save installation space; for example, side-outlet configurations can reduce floor space by 35%. They are characterized by rapid installation and flexible configuration.

[0003] Existing prefabricated low-voltage electrical cabinets are designed with ventilation openings for ventilation and heat dissipation. Due to the presence of these ventilation openings, when used outdoors or in rainy weather, humid and cold air will enter the cabinet through the ventilation openings on both sides, easily causing the air inside the cabinet to become damp. The electrical components inside the cabinet may be damaged due to prolonged operation in a humid environment, posing a safety hazard. Summary of the Invention

[0004] This invention provides a pre-assembled low-voltage electrical cabinet. By setting a first condensing plate at the ventilation opening, humid air will condense upon contact with the condensing plate, removing moisture from the air. This solves the problem mentioned in the background art that humid and cold air will enter the cabinet through the ventilation openings on both sides, easily causing the air inside the cabinet to be humid. The electrical components inside the cabinet will work in a humid environment for a long time, which will easily lead to damage to the electrical components and pose a safety hazard.

[0005] The present invention provides the following technical solution: a pre-assembled low-voltage electrical cabinet, comprising a mounting frame fixed on the cabinet body, a ventilation opening on the mounting frame, a plurality of parallel first condensing plates rotatably arranged on the inner side of the ventilation opening, a first electric push rod fixed on the inner wall of the mounting frame, a first toothed plate fixed at the output end of the first electric push rod, a first rotating shaft fixed on the surface of the first condensing plate, the first rotating shaft being rotatably connected to the mounting frame, a first gear meshing with the first toothed plate fixed on the circumference of the first rotating shaft, and the first toothed plate causing the plurality of first condensing plates to swing synchronously by driving the first gear to rotate.

[0006] As an optional embodiment of the pre-assembled low-voltage electrical cabinet of the present invention, a first coolant tank is provided inside the first condenser plate, and an inlet pipe and an outlet pipe connected to the first coolant tank are fixed on the top of the first condenser plate.

[0007] As an optional embodiment of the pre-assembled low-voltage electrical cabinet of the present invention, a second electric push rod is fixed to the inner wall of the mounting frame, a horizontal plate is fixed to the output end of the second electric push rod, a straight rod is fixed to the lower surface of the horizontal plate, and water-absorbing components are provided between adjacent first condensing plates. The water-absorbing components are located above the first condensing plates, and the straight rod is fixed to the water-absorbing components.

[0008] As an optional embodiment of the pre-assembled low-voltage electrical cabinet of the present invention, a storage groove is provided on the surface of the first condensing plate, a second condensing plate is provided in the storage groove, a second rotating shaft is fixed on the surface of the second condensing plate, the second rotating shaft is rotatably connected to the first condensing plate, and the second condensing plate rotates out from the inside of the storage groove through the rotation of the first condensing plate.

[0009] As an optional embodiment of the pre-assembled low-voltage electrical cabinet of the present invention, a protruding plate is fixed on the surface of the first toothed plate, an oil box is fixed inside the mounting frame, a first hydraulic oil groove is opened in the oil box, a first piston plate is slidably arranged inside the first hydraulic oil groove, and a first connecting rod is fixed between the first piston plate and the protruding plate.

[0010] As an optional embodiment of the pre-assembled low-voltage electrical cabinet of the present invention, a second hydraulic oil groove is provided inside the second condenser plate, an oil guide pipe is provided between the first hydraulic oil groove and the second hydraulic oil groove, a second piston plate is elastically provided inside the second hydraulic oil groove, a second connecting rod is fixed on the surface of the second piston plate, a second toothed plate is fixed at the end of the second connecting rod, and a second gear that meshes with the second toothed plate is fixed on the circumference of the second rotating shaft.

[0011] As an optional embodiment of the pre-assembled low-voltage electrical cabinet of the present invention, a second coolant tank is provided inside the second condenser plate, the second rotating shaft is configured as a hollow structure, a liquid guide groove is provided between the first coolant tank and the second rotating shaft, and the liquid outlet pipe is provided in connection with the second rotating shaft.

[0012] As an optional embodiment of the pre-assembled low-voltage electrical cabinet of the present invention, the interior of the first condenser plate is provided with a first moving groove for the second toothed plate to move, and a spring is fixed between the inner wall of the second hydraulic oil groove and the second piston plate.

[0013] As an optional embodiment of the pre-assembled low-voltage electrical cabinet of the present invention, a third coolant tank is provided inside the first condenser plate. An inlet tank is provided between the third coolant tank and the liquid guide tank, and an outlet tank is provided between the third coolant tank and the liquid outlet pipe. A sealing plate is provided on both the inlet tank and the outlet tank. The inlet tank and the outlet tank are opened and closed by sliding the sealing plate inside the first condenser plate.

[0014] As an optional embodiment of the pre-assembled low-voltage electrical cabinet of the present invention, the end of the sealing plate is fixed to the surface of the second toothed plate, the interior of the first condenser plate is provided with a second moving groove for the sealing plate to slide, and the sealing plate is provided with a through groove for conduction.

[0015] The present invention has the following beneficial effects: 1. In this pre-assembled low-voltage electrical cabinet, when the humidity is low, the first condensing plate remains horizontal with the vent for normal ventilation and heat dissipation. When the humidity is detected to be high, the first electric push rod pushes the first toothed plate to move. The first toothed plate drives the first gear to rotate, and the first gear drives the first condensing plate to rotate, causing the first condensing plate to swing inside the vent and be in an inclined state. The inclined first condensing plate can slow down the speed at which humid air enters the cabinet, thereby increasing the contact time between the humid air and the first condensing plate, which is beneficial to improving the condensation effect and thus making the dehumidification effect better.

[0016] 2. In this pre-assembled low-voltage electrical cabinet, during the swinging of the first condenser plate, the first toothed plate drives the convex plate to move, and the convex plate drives the first piston plate to slide inside the first hydraulic oil tank, filling the hydraulic oil inside the first hydraulic oil tank into the second hydraulic oil tank. This causes the second piston plate to drive the second toothed plate to move, and the second toothed plate drives the second rotating shaft to rotate through the second gear. This causes the second rotating shaft to rotate the second condenser plate, which rotates the second condenser plate out of the receiving groove, reducing the distance between the second condenser plate and the adjacent first condenser plate. This reduces the size of the ventilation opening, thus hindering the entry of humid air. At the same time, the rotated second condenser plate increases the contact area with humid air and interferes with the airflow of the entering humid air, allowing the humid air to have more sufficient contact with the first and second condenser plates, thereby further improving the dehumidification and moisture-proof effect.

[0017] 3. In this pre-assembled low-voltage electrical cabinet, during the rotation of the second condensing plate, the movement of the second toothed plate drives the movement of the sealing plate. The movement of the sealing plate connects the through groove with the inlet and outlet grooves, allowing the coolant to flow into the third coolant tank and then out of the third coolant tank, thus achieving coolant circulation. As a result, after the second condensing plate rotates out of the receiving tank, the inner wall of the receiving tank always has good condensation capacity, which facilitates the continuous condensation treatment of humid air by the inner wall of the receiving tank, thereby further increasing the dehumidification and moisture-proof effect. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the present invention.

[0019] Figure 2 This is a schematic diagram of the mounting plate portion of the present invention.

[0020] Figure 3 For the present invention Figure 2 Enlarged view of point A in the middle.

[0021] Figure 4 This is a structural schematic diagram of the mounting plate of the present invention from another perspective.

[0022] Figure 5 For the present invention Figure 4 Enlarged view of section B in the middle.

[0023] Figure 6 This is a schematic diagram of the structure of the first condenser plate in this invention.

[0024] Figure 7 For the present invention Figure 6 Enlarged view of point C in the middle.

[0025] Figure 8 This is one of the top structural cross-sectional views of the first condenser plate of the present invention.

[0026] Figure 9 For the present invention Figure 8 Enlarged view of point D in the middle.

[0027] Figure 10 This is one of the side structural cross-sectional views of the first condenser plate of the present invention.

[0028] Figure 11 For the present invention Figure 10 Enlarged view of point E in the middle.

[0029] Figure 12 This is a second top sectional view of the first condenser plate of the present invention.

[0030] Figure 13 This is a second side structural cross-sectional view of the first condenser plate of the present invention.

[0031] Figure 14For the present invention Figure 13 Enlarged view of point F in the middle.

[0032] Figure 15 This is a schematic diagram illustrating the working principle of the first condenser plate after it oscillates in this invention.

[0033] In the diagram: 1. Cabinet; 2. Mounting frame; 3. Ventilation opening; 4. First condenser plate; 5. First electric actuator; 6. First gear plate; 7. First rotating shaft; 8. First gear; 9. First coolant tank; 10. Inlet pipe; 11. Outlet pipe; 12. Second electric actuator; 13. Horizontal plate; 14. Straight rod; 15. Water suction component; 16. Storage slot; 17. Second condenser plate; 18. Second rotating shaft; 19. Protruding plate; 20. Oil box; 21. First hydraulic oil tank; 22. 23. First piston plate; 24. First connecting rod; 25. Second hydraulic oil tank; 26. Oil guide pipe; 27. Second piston plate; 28. Second connecting rod; 29. ​​Second gear plate; 20. Second coolant tank; 31. Liquid guide tank; 32. First moving groove; 33. Spring; 34. Third coolant tank; 35. Liquid inlet tank; 36. Liquid outlet tank; 37. Sealing plate; 38. Second moving groove; 39. Through groove; 40. Inclined guide groove; 41. Filter screen. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] Example 1, please refer to Figures 1-15 A pre-assembled low-voltage electrical cabinet includes a mounting frame 2 fixed on a cabinet body 1. The mounting frame 2 has a ventilation opening 3. Several sets of parallel first condensing plates 4 are rotatably arranged inside the ventilation opening 3. A first electric push rod 5 is fixed to the inner wall of the mounting frame 2. A first toothed plate 6 is fixed to the output end of the first electric push rod 5. A first rotating shaft 7 is fixed to the surface of the first condensing plate 4. The first rotating shaft 7 is rotatably connected to the mounting frame 2. A first gear 8 that meshes with the first toothed plate 6 is fixed on the circumference of the first rotating shaft 7. The first toothed plate 6 drives the first gear 8 to rotate, causing the several sets of first condensing plates 4 to swing synchronously. The first condenser plate 4 has a first coolant tank 9 inside, and the top of the first condenser plate 4 is fixed with an inlet pipe 10 and an outlet pipe 11 that are connected to the first coolant tank 9. The inner wall of the mounting frame 2 is fixed with a second electric push rod 12. The output end of the second electric push rod 12 is fixed with a horizontal plate 13. The lower surface of the horizontal plate 13 is fixed with a straight rod 14. A water-absorbing component 15 is provided between adjacent first condensing plates 4. The water-absorbing component 15 is located above the first condensing plate 4. The straight rod 14 is fixed to the water-absorbing component 15.

[0036] In this technical solution, a humidity sensor is installed inside the cabinet 1 on the inner side of the ventilation opening 3. The humidity sensor is electrically connected to the first electric push rod 5. When the humidity sensor detects that the humidity is high, the first electric push rod 5 is activated to perform moisture-proof treatment on the inside of the cabinet 1. The humidity sensor's detection of humidity is existing technology and is not an innovation of this application, so it will not be described in detail. When cabinet 1 is in normal use, several sets of first condenser plates 4 maintain the following condition: Figure 2 In the horizontal state shown, the air circulation area between the several groups of first condensing plates 4 is relatively large, which facilitates heat dissipation inside the cabinet 1. During moisture-proofing, when humid air comes into contact with the surface of the first condensing plates 4, the humid air will condense into water droplets upon cooling and fall down along the first condensing plates 4, thus playing a moisture-proofing role. When the humidity sensor detects high humidity, the first toothed plate 6 is first moved by the first electric push rod 5. The first toothed plate 6 drives the first gear 8 to rotate, the first gear 8 drives the first rotating shaft 7 to rotate, and the first rotating shaft 7 drives the first condensing plate 4 to rotate, so that the first condensing plate 4 swings at a certain angle within the vent 3. After swinging, the first condensing plate 4 is in an inclined state. The inclined first condensing plate 4 can slow down the entry of humid air and increase the contact time between the air and the first condensing plate 4, thereby increasing the condensation effect of humid air and enhancing the dehumidification effect. During the dehumidification process, the inlet pipe 10 is connected to a coolant tank. A water pump pumps coolant into the inlet pipe 10, allowing the coolant to enter the first coolant tank 9. The coolant is then discharged through the outlet pipe 11 and finally returns to the coolant tank, thus achieving coolant circulation. This allows the coolant to flow inside the first condenser plate 4, thereby improving the condensation effect. The water pump, coolant tank, and the connection method with the inlet pipe 10 and outlet pipe 11 are all existing technologies and are not innovative points of this application, so they will not be described in detail. In this technical solution, after dehumidification is completed, the first electric push rod 5 resets, driving the first toothed plate 6 to reset. The first toothed plate 6 drives the first gear 8 and the first rotating shaft 7 to reset, thereby resetting the first condensing plate 4. After the first condensing plate 4 is reset, the second electric push rod 12 drives the horizontal plate 13 to move downward. The horizontal plate 13 drives the straight rod 14 to move downward. The straight rod 14 drives the water-absorbing component 15 to move downward, so that the two sides of the water-absorbing component 15 move downward along the surface of the first condensing plate 4, allowing the water-absorbing component 15 to absorb the moisture on the surface of the first condensing plate 4, increasing the dehumidification effect. When the water-absorbing component 15 moves downward to the bottom of the mounting frame 2, it continues to move a certain distance to squeeze the water-absorbing component 15, thereby facilitating the discharge of the water absorbed inside the water-absorbing component 15 and further increasing the dehumidification effect. The bottom of the mounting frame 2 is provided with an inclined guide groove 40, which is located between adjacent first condensing plates 4 to facilitate the discharge of water dripping along the first condensing plate 4 and water absorbed by the water absorbent 15. The water absorbent 15 can be a water-absorbing sponge that can absorb water. The inner side of the mounting frame 2 is provided with a filter screen 41 to effectively filter impurities in the air while ventilating and dissipating heat.

[0037] In Example 2, although the tilted first condenser plate 4 can reduce the entry of humid air after it swings, the spacing between the first condenser plates 4 remains unchanged, resulting in a relatively large amount of humid air entering the cabinet 1. This may lead to a continued increase in humidity inside the cabinet 1. To address this issue, this example is an improvement upon Example 1. For details, please refer to [link / reference]. Figures 1-15 The surface of the first condensing plate 4 is provided with a storage groove 16, and a second condensing plate 17 is provided in the storage groove 16. A second rotating shaft 18 is fixed on the surface of the second condensing plate 17. The second rotating shaft 18 is rotatably connected to the first condensing plate 4, and the second condensing plate 17 rotates out from inside the storage groove 16 through the rotation of the first condensing plate 4. A protruding plate 19 is fixed on the surface of the first toothed plate 6, and an oil box 20 is fixed inside the mounting frame 2. A first hydraulic oil groove 21 is opened inside the oil box 20. A first piston plate 22 is slidably arranged inside the first hydraulic oil groove 21. A first connecting rod 23 is fixed between the first piston plate 22 and the protruding plate 19. The second condenser plate 17 has a second hydraulic oil groove 24 inside. The first hydraulic oil groove 21 and the second hydraulic oil groove 24 are connected by an oil guide pipe 25. The second hydraulic oil groove 24 is elastically provided with a second piston plate 26. The surface of the second piston plate 26 is fixed with a second connecting rod 27. The end of the second connecting rod 27 is fixed with a second toothed plate 28. The circumference of the second rotating shaft 18 is fixed with a second gear 29 that meshes with the second toothed plate 28. The second condenser plate 17 has a second coolant tank 30 inside, the second rotating shaft 18 is a hollow structure, the first coolant tank 9 and the second rotating shaft 18 are connected by a liquid guide tank 31, and the liquid outlet pipe 11 is connected to the second rotating shaft 18. The interior of the first condenser plate 4 is provided with a first moving groove 32 for the second toothed plate 28 to move, and a spring 33 is fixed between the inner wall of the second hydraulic oil groove 24 and the second piston plate 26.

[0038] In this technical solution, when the first condensing plate 4 swings, as Figure 5 As shown, the first toothed plate 6 drives the convex plate 19 to move, and the convex plate 19 drives the first piston plate 22 to slide inside the first hydraulic oil groove 21 through the first connecting rod 23, so that the hydraulic oil inside the first hydraulic oil groove 21 is filled into the second hydraulic oil groove 24 through the oil guide pipe 25. Figure 9 As shown, after the second hydraulic oil tank 24 is filled with hydraulic oil, it causes the second piston plate 26 to move downward, compressing the spring 33 and storing force in the spring 33 for subsequent reset. The second piston plate 26 drives the second gear plate 28 to move downward via the second connecting rod 27. The second gear plate 28 drives the second gear 29 to rotate, which in turn drives the second rotating shaft 18 to rotate. The rotation of the second rotating shaft 18 drives the second condensing plate 17 to rotate, rotating the second condensing plate 17 out of the receiving tank 16, so that the second condensing plate 17 rotates to the position shown in the image. Figure 15 In this state, the distance between the second condensing plate 17 and the first condensing plate 4 on the other side becomes smaller, which hinders the flow of humid air and reduces the amount of humid air entering the cabinet 1. Additionally, when the second condensing plate 17 rotates to... Figure 15 After the condition is reached, the flow direction of the humid air is roughly as follows: humid air enters cabinet 1 along direction a, and a portion of the humid air enters cabinet 1 along direction d. The left side of the first condensing plate 4 and the right side of the second condensing plate 17 directly dehumidify this portion of the humid air. Another portion of the humid air is blocked by the second condensing plate 17 and flows along direction b, contacting the left side of the second condensing plate 17. The second condensing plate 17 dehumidifies this portion of the humid air, thereby increasing the humidity. The gas flowing along direction b will eventually form a tendency to flow along direction c at the end of the second condensing plate 17, thus colliding with the gas flowing along direction a and mixing before flowing into cabinet 1. During the airflow collision, the amount of humid air entering cabinet 1 can be further reduced, while the contact time and contact area between the humid air and the first condensing plate 4 and the second condensing plate 17 can be increased, thereby further improving the dehumidification and moisture-proof effect. In this technical solution, such as Figure 10As shown, the coolant enters the guide pipe from the first coolant tank 9, then enters the second coolant tank 30 through the hollow second rotating shaft 18 below, and is discharged from the outlet pipe 11 through the hollow second rotating shaft 18 above. This ensures that when the second rotating shaft 18 drives the second condenser plate 17 to rotate, it does not affect the circulation of the coolant, making the circulation of the coolant smoother.

[0039] In Example 3, because the second condenser plate 17 rotates out from inside the receiving tank 16, the condensation effect of the inner wall of the receiving tank 16 deteriorates. When humid air enters between the receiving tank 16 and the second condenser plate 17, it can only be continuously condensed by the second condenser plate 17, resulting in poor dehumidification. To address this problem, this example is an improvement based on Example 2. For details, please refer to... Figures 1-15 The first condenser plate 4 has a third coolant tank 34 inside. The third coolant tank 34 is connected to the liquid guide tank 31 by an inlet tank 35. The third coolant tank 34 is connected to the liquid outlet pipe 11 by an outlet tank 36. Both the inlet tank 35 and the outlet tank 36 are provided with sealing plates 37. The inlet tank 35 and the outlet tank 36 are opened and closed by sliding the sealing plates 37 inside the first condenser plate 4. The end of the sealing plate 37 is fixed to the surface of the second toothed plate 28. The first condensation plate 4 has a second moving groove 38 for the sealing plate 37 to slide, and the sealing plate 37 has a through groove 39 for conduction.

[0040] In this technical solution, when the storage capacity is large, the overall circulation speed of the coolant is slow. To maintain a constant circulation speed, the output power of the water pump needs to be increased. Since the dehumidification working time is much shorter than the normal working time, during normal operation, the area through which the coolant flows should be minimized to accelerate the coolant circulation speed without affecting dehumidification. This also reduces the output power of the water pump, allowing it to operate at a lower power for better performance. Therefore, under normal working conditions, the third coolant tank 34 is not connected to the first coolant tank 9, allowing the third coolant tank to operate smoothly. The coolant tank 34 does not participate in the circulation of coolant, which is equivalent to reducing the area through which coolant flows. When the humidity is too high, the first condenser plate 4 and the second condenser plate 17 rotate, connecting the third coolant tank 34 with the first coolant tank 9. At this time, by increasing the output power of the water pump, the circulation speed of the coolant does not decrease, thereby reducing the time when the water pump operates at high power. In addition, after the third coolant tank 34 is connected to the first coolant tank 9, the inner wall of the collection tank 16 can undergo continuous condensation treatment, thereby increasing the condensation effect of the inner wall of the collection tank 16 and improving the dehumidification effect. The specific process of the third coolant tank 34 connecting to the first coolant tank 9 is as follows: When the second gear plate 28 moves along the first moving groove 32, driving the second gear 29 to rotate, as... Figure 13 and Figure 14 As shown, the second toothed plate 28 drives the sealing plate 37 to move to the left along the second moving groove 38, and the sealing plate 37 drives the through groove 39 to move to the left, so that the through groove 39 is connected with the liquid inlet groove 35 and the liquid outlet groove 36. The coolant flows from the liquid guide groove 31 and the liquid inlet groove 35 into the third coolant tank 34, and then enters the liquid outlet pipe 11 through the liquid outlet groove 36 and is discharged, realizing the circulation of coolant inside the third coolant tank 34. Thus, after the second condensing plate 17 is rotated out from inside the receiving groove 16, the inside of the receiving groove 16 can also continuously condense the humid air, increase the dehumidification area, and further increase the dehumidification and moisture-proof effect.

[0041] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0042] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A pre-assembled low-voltage electrical cabinet, comprising a mounting frame (2) fixed to the cabinet body (1), characterized in that: The mounting frame (2) is provided with a ventilation opening (3). Several sets of parallel first condensing plates (4) are rotatably arranged on the inner side of the ventilation opening (3). A first electric push rod (5) is fixed on the inner wall of the mounting frame (2). A first toothed plate (6) is fixed at the output end of the first electric push rod (5). A first rotating shaft (7) is fixed on the surface of the first condensing plate (4). The first rotating shaft (7) is rotatably connected to the mounting frame (2). A first gear (8) that meshes with the first toothed plate (6) is fixed on the circumference of the first rotating shaft (7). The first toothed plate (6) drives the first gear (8) to rotate, causing several sets of first condensing plates (4) to swing synchronously.

2. The pre-assembled low-voltage electrical cabinet according to claim 1, characterized in that: The first condenser plate (4) has a first coolant tank (9) inside. The top of the first condenser plate (4) is fixed with an inlet pipe (10) and an outlet pipe (11) that are connected to the first coolant tank (9).

3. The pre-assembled low-voltage electrical cabinet according to claim 2, characterized in that: The inner wall of the mounting frame (2) is fixed with a second electric push rod (12), the output end of the second electric push rod (12) is fixed with a horizontal plate (13), the lower surface of the horizontal plate (13) is fixed with a straight rod (14), and water-absorbing components (15) are provided between adjacent first condensing plates (4). The water-absorbing components (15) are located above the first condensing plates (4), and the straight rod (14) is fixed to the water-absorbing components (15).

4. The pre-assembled low-voltage electrical cabinet according to claim 3, characterized in that: The surface of the first condensing plate (4) is provided with a storage groove (16), and a second condensing plate (17) is provided in the storage groove (16). A second rotating shaft (18) is fixed on the surface of the second condensing plate (17). The second rotating shaft (18) is rotatably connected to the first condensing plate (4). The second condensing plate (17) rotates out from the inside of the storage groove (16) through the rotation of the first condensing plate (4).

5. The pre-assembled low-voltage electrical cabinet according to claim 4, characterized in that: A protruding plate (19) is fixed on the surface of the first toothed plate (6), and an oil box (20) is fixed inside the mounting frame (2). A first hydraulic oil groove (21) is opened inside the oil box (20), and a first piston plate (22) is slidably arranged inside the first hydraulic oil groove (21). A first connecting rod (23) is fixed between the first piston plate (22) and the protruding plate (19).

6. The pre-assembled low-voltage electrical cabinet according to claim 5, characterized in that: The second condenser plate (17) has a second hydraulic oil groove (24) inside. The first hydraulic oil groove (21) and the second hydraulic oil groove (24) are connected by an oil guide pipe (25). The second hydraulic oil groove (24) is elastically provided with a second piston plate (26). The surface of the second piston plate (26) is fixed with a second connecting rod (27). The end of the second connecting rod (27) is fixed with a second toothed plate (28). The circumference of the second rotating shaft (18) is fixed with a second gear (29) that meshes with the second toothed plate (28).

7. The pre-assembled low-voltage electrical cabinet according to claim 6, characterized in that: The second condenser plate (17) has a second coolant tank (30) inside, the second rotating shaft (18) is a hollow structure, the first coolant tank (9) and the second rotating shaft (18) are connected by a liquid guide tank (31), and the liquid outlet pipe (11) is connected to the second rotating shaft (18).

8. The pre-assembled low-voltage electrical cabinet according to claim 7, characterized in that: The first condenser plate (4) has a first moving groove (32) for the second toothed plate (28) to move inside, and a spring (33) is fixed between the inner wall of the second hydraulic oil groove (24) and the second piston plate (26).

9. The pre-assembled low-voltage electrical cabinet according to claim 8, characterized in that: The first condenser plate (4) has a third coolant tank (34) inside. The third coolant tank (34) is connected to the liquid guide tank (31) by an inlet tank (35). The third coolant tank (34) is connected to the liquid outlet pipe (11) by an outlet tank (36). Both the inlet tank (35) and the outlet tank (36) are provided with sealing plates (37). The inlet tank (35) and the outlet tank (36) are opened and closed by sliding inside the first condenser plate (4) through the sealing plates (37).

10. The pre-assembled low-voltage electrical cabinet according to claim 9, characterized in that: The end of the sealing plate (37) is fixed to the surface of the second toothed plate (28). The first condensing plate (4) has a second moving groove (38) for sliding of the sealing plate (37). The sealing plate (37) has a through groove (39) for conduction.

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