A combined distribution box for high voltage switchgear

Abstract

The application discloses a combined distributed distribution box for high-voltage combined electric appliances, and relates to the technical field of distribution boxes.The combined distributed distribution box comprises a box body, a door body on one side of the box body, a back plate on the other side of the box body, second air holes uniformly distributed on the back plate, a first partition plate and a second partition plate vertically fixed in the box body, the first partition plate and the second partition plate being used for mounting high-voltage combined electric appliances, a buffer bin mounted on the back plate and communicated with the second air holes, a plurality of fans embedded in the buffer bin, a shunt bin communicated with air inlet ends of the plurality of fans, heat exchange pipes arranged in the middle of the shunt bin, circulating pipes connected with two ends of the heat exchange pipes, the heat exchange pipes and the circulating pipes forming a loop, the loop being filled with cooling liquid, the circulating pipes being arranged in the stratum, and pump bodies being further connected in series on the circulating pipes.The combined distributed distribution box can automatically adjust the cooling mode and has good cooling effect without manual intervention.

Description

Technical Field

[0001] This invention relates to the field of distribution box technology, specifically a combined distributed distribution box for high-voltage combined electrical appliances. Background Technology

[0002] With the increasing size and complexity of power systems, high-voltage switchgear, as the core equipment for power transmission and distribution, has become a key factor in the safe operation of power systems in terms of stability and reliability. However, traditional distribution box designs are gradually showing their limitations in the face of modern power demands, failing to fully meet the requirements for efficient heat dissipation, intelligent monitoring, robust protection, and flexible expansion.

[0003] Specifically, traditional distribution boxes have significant shortcomings in terms of intelligence. They often lack comprehensive monitoring systems, making it impossible to accurately grasp the operating status of equipment and environmental parameters in real time, resulting in potential problems being difficult to detect and resolve in a timely manner. Secondly, the balance between heat dissipation efficiency and cost is also a major challenge for traditional distribution boxes. Under high-temperature or high-load conditions, traditional heat dissipation methods may not be effective, leading to overheating of equipment and affecting its lifespan. To improve heat dissipation, additional cooling equipment is often required, which undoubtedly increases the cost burden. Furthermore, design and scalability limitations also restrict the application scope of traditional distribution boxes. With the development of power systems, the demand for upgrading and expanding distribution boxes is increasing.

[0004] Therefore, it is necessary to develop a combined distributed distribution box for high-voltage combined electrical appliances to solve the above problems. Summary of the Invention

[0005] To address the above problems, the present invention provides the following technical solution: a combined distributed distribution box for high-voltage combined electrical appliances, comprising:

[0006] The box has a door on one side, with a first vent in the middle of the door, and the first vent is covered with dry cotton. The other side of the box is a back panel, with second vents evenly distributed on the back panel.

[0007] A first partition and a second partition are vertically fixed in the housing. There are gaps between the first partition and the back plate, and between the first partition and the second partition. Both the first partition and the second partition are used to install high-voltage combined electrical appliances.

[0008] A buffer chamber is mounted on the back plate and communicates with the second vent hole; multiple fans are embedded in the buffer chamber.

[0009] The distribution chamber is connected to the air intake of multiple fans, and a heat exchange tube is provided in the middle of the distribution chamber. Both ends of the heat exchange tube are connected to circulation tubes, and the heat exchange tube and circulation tube form a loop. The loop is filled with coolant. The circulation tube is placed in the formation, and a pump body is connected in series on the circulation tube.

[0010] Specifically, when the temperature of the coolant in the circulation pipe is lower than the temperature of the air around the tank, the temperature difference between the two is a temperature difference parameter. When the temperature difference parameter is greater than a first threshold, the pump is turned on.

[0011] Furthermore, as a preferred embodiment, both the first and second partitions have multiple mounting holes on their surfaces.

[0012] Furthermore, as a preferred embodiment, a top plate is fixed to the top of the box, and a heat insulation layer is filled between the top plate and the top of the box; a water collection tank is provided at the bottom of the box.

[0013] Furthermore, as a preferred embodiment, the enclosure also contains a thermometer, a hygrometer, and a camera, wherein the camera is angle-adjustable to monitor the high-voltage switchgear, the hygrometer, and the thermometer.

[0014] Furthermore, preferably, a liquid-cooled drive assembly is connected in series on the circulation pipe, the liquid-cooled drive assembly comprising:

[0015] outer cylinder;

[0016] The inner cylinder is vertically slidably disposed in the outer cylinder using a sliding ring seat, and a stator is provided on the inner surface of the inner cylinder, and a side through hole is provided on the side of the inner cylinder.

[0017] The rotor has a gap disposed in the inner space of the stator and rotates in conjunction with the stator;

[0018] A rotating shaft, one end of which is connected to the rotor, and the other end of which is connected to a fan blade;

[0019] A liquid collecting ring seat is fixed to the upper end of the outer cylinder, and a first liquid collecting port corresponding to the side through hole is opened on the side of the liquid collecting ring seat. The liquid collecting ring seat and the outer cylinder are connected in series to the circulation pipe.

[0020] Furthermore, as a preferred embodiment, the outer cylinder is connected in series to the circulation pipe via a sealing seat. The middle part of the sealing seat is a through-type boss structure, and an electromagnetic block is embedded in the through-type boss structure. The inner cylinder is internally sealed and rotatably provided with a liquid inlet seat corresponding to the through-type boss structure. The liquid inlet seat is connected to the rotor, and the top of the liquid inlet seat has a drain hole.

[0021] Furthermore, as a preferred embodiment, the sliding ring seat is provided with a guide hole, and the bottom of the liquid collecting ring seat is provided with a second liquid collecting port corresponding to the guide hole.

[0022] Furthermore, as a preferred embodiment, when the pump body is turned on, the electromagnetic block is turned on when the temperature difference parameter is greater than the second threshold, thereby positioning the liquid inlet seat on the sealing seat; when the temperature difference parameter is greater than the first threshold and less than the second threshold, the electromagnetic block is turned off.

[0023] Furthermore, as a preferred embodiment, the bottom of the diversion chamber is also fitted with a dustproof and drying net using an elastic frame, the rotating shaft passes through the dustproof and drying net, and the top of the liquid collecting ring seat is connected to the dustproof and drying net.

[0024] Furthermore, as a preferred embodiment, a frame is also fixed in the diversion compartment, and a spring is fixed at the bottom of the frame, the spring being connected to the dustproof drying net.

[0025] Compared with the prior art, the present invention provides a combined distributed distribution box for high-voltage combined electrical appliances, which has the following beneficial effects:

[0026] 1. In this invention, intelligent control of pump start-up is achieved by setting a temperature difference parameter and a first threshold. When the temperature difference between the ambient temperature and the coolant temperature reaches the set threshold, the pump automatically starts without manual intervention, improving the automation level and operating efficiency of the distribution box. Furthermore, thanks to the low-temperature supply from the ground, the overall cooling cost is low and the cooling effect is good.

[0027] 2. In this invention, the primary function of the pump body in the liquid-cooled drive assembly is to provide coolant to the heat exchange tubes for effective heat exchange. The rotation of the fan blades is secondary, serving to improve heat dissipation efficiency. When the coolant temperature is high, maintaining a low coolant temperature is prioritized for effective heat exchange; when the coolant temperature is low, it can be fully utilized to drive the fan blades, improving the overall heat dissipation capacity of the liquid-cooled drive assembly. This design ensures both the heat dissipation performance of the liquid-cooled drive assembly and the rational utilization of energy efficiency.

[0028] 3. In this invention, the camera can capture real-time images of the interior of the distribution box, including the operating status of the high-voltage switchgear, and readings from the thermometer and hygrometer. Through the control system, maintenance personnel can remotely monitor the distribution box status, promptly identify and address potential problems, reduce the number of on-site inspections, and improve maintenance efficiency. Attached Figure Description

[0029] Figure 1 A schematic diagram of a combined distributed distribution box for high-voltage combined electrical appliances;

[0030] Figure 2 for Figure 1 A schematic diagram of the AA cross-sectional structure;

[0031] Figure 3 This is a schematic diagram of the structure of a liquid-cooled drive component in a combined distributed distribution box for high-voltage switchgear;

[0032] Figure 4 for Figure 2 A magnified structural diagram at point A;

[0033] In the diagram: 1. Box body; 2. Top plate; 3. Insulation layer; 4. Water collection tank; 5. First partition; 6. Second partition; 7. Buffer chamber; 8. Fan; 9. Liquid-cooled drive assembly; 10. Diversion chamber; 11. Heat exchange tube; 12. Circulation tube; 13. Dustproof drying net; 14. Frame; 15. Spring; 91. Outer cylinder; 92. Inner cylinder; 93. Rotor; 94. Stator; 95. Shaft; 96. Fan blade; 97. Liquid inlet seat; 98. Liquid drain hole; 99. Sealing seat; 910. Electromagnetic block; 911. Liquid collection ring seat; 912. First liquid collection port; 913. Second liquid collection port; 914. Sliding ring seat; 915. Guide hole. Detailed Implementation

[0034] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such terms are interchangeable where appropriate; this is merely a way of distinguishing objects with the same attributes in the embodiments of this application. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion, so that a process, method, system, product, or apparatus that comprises a series of elements is not necessarily limited to those elements, but may include other elements not explicitly listed or inherent to those processes, methods, products, or apparatuses.

[0035] Example: Please refer to Figures 1-4 In this embodiment of the invention, a combined distributed distribution box for high-voltage combined electrical appliances is provided, comprising:

[0036] The enclosure 1 has a door on one side, with a first vent in the middle of the door. The first vent is covered with dry cotton, which effectively prevents dust and moisture from entering the interior of the enclosure 1 and protects the high-voltage combined electrical appliances from damage. The other side of the enclosure is a back panel, with second vents evenly distributed on the back panel.

[0037] A first partition 5 and a second partition 6 are vertically fixed in the housing 1. There are gaps between the first partition 5 and the back plate, and between the first partition 5 and the second partition 6. Both the first partition 5 and the second partition 6 are used to install high-voltage combined electrical appliances.

[0038] A buffer chamber 7 is mounted on the back plate and communicates with the second vent hole. Multiple fans 8 are embedded in the buffer chamber 7.

[0039] The flow distribution chamber 10 is connected to the air intake of multiple fans 8, and a heat exchange tube 11 is provided in the middle of the flow distribution chamber 10. Both ends of the heat exchange tube 11 are connected to circulation tubes 12, and the heat exchange tube 11 and circulation tube 12 form a loop. The loop is filled with coolant. The circulation tube 12 is placed in the ground, and a pump body is connected in series on the circulation tube 12.

[0040] Specifically, when the temperature of the coolant in the circulation pipe 12 is lower than the temperature of the air around the housing 1, the temperature difference between the two is a temperature difference parameter. When the temperature difference parameter is greater than a first threshold, the pump is turned on.

[0041] The system incorporates a buffer chamber 7 with a fan 8 and a connected air inlet distribution chamber 10 for the fan 8. Combined with the coolant in the heat exchange pipe 11 and circulation pipe 12, efficient heat dissipation from the high-voltage switchgear is achieved. When the ambient temperature exceeds the coolant temperature and the temperature difference reaches a certain threshold, the pump automatically starts, and the coolant circulates, ensuring the high-voltage switchgear operates at a suitable temperature and extending its lifespan.

[0042] It is worth mentioning that in this embodiment, the ground is used as a natural cold source. The coolant is placed in the ground through the circulation pipe 12. The low temperature of the ground is used to reduce the temperature of the coolant. No additional energy is required for cooling, which reduces operating costs and reduces the impact on the environment.

[0043] In this embodiment, the interior of the enclosure 1, through the arrangement of the first partition 5 and the second partition 6, not only achieves the effective installation of the high-voltage combined electrical appliances, but also promotes air circulation and improves heat dissipation efficiency through the gap between the partitions (first partition 5 and second partition 6). At the same time, the design of the buffer chamber 7 and the diversion chamber 10 is compact and does not occupy too much space, making the entire distribution box structure compact and rationally laid out.

[0044] During implementation, the high-voltage switchgear will generate a certain amount of heat when it is running normally inside the enclosure 1.

[0045] When the ambient temperature is higher than the coolant temperature, and the temperature difference between the two reaches a set first threshold, the control system automatically starts the pump. The pump drives the coolant to circulate between the heat exchange tubes and the circulation tubes.

[0046] As the coolant flows through the heat exchange tube 11, it absorbs the heat from the air drawn in by the fan 8 in the distribution chamber, thus lowering the air temperature. Simultaneously, because the coolant is cooled in the ground, it re-enters the heat exchange tube 11 at a lower temperature, thereby achieving continuous cooling of the air.

[0047] The cooled air is drawn from the distribution chamber 10 into the buffer chamber 7 by the fan 8, and then enters the cabinet 1 through the second vent on the back panel, thus cooling the high-voltage combined electrical appliances.

[0048] In this embodiment, the surfaces of the first partition 5 and the second partition 6 are each provided with a plurality of mounting holes.

[0049] Different models and functions of high-voltage switchgear can be precisely fixed to the partition through these mounting holes to meet diverse installation needs.

[0050] As the demand for distribution boxes increases or changes, the functionality of the distribution box can be expanded or adjusted by adding or removing high-voltage switchgear installed on the partition, thus improving the scalability of the distribution box.

[0051] Of course, the mounting holes are not only used to fix high-voltage switchgear, but also to promote air circulation between the partitions to a certain extent.

[0052] In some cases, mounting holes can also be used for cable management. Cables connecting high-voltage switchgear can pass through the mounting holes into the partitions, keeping the cables neat and orderly. This helps reduce cable clutter and interference, improving the safety and reliability of the distribution box.

[0053] In this embodiment, a top plate 2 is fixed to the top of the box 1, and a heat insulation layer 3 is filled between the top plate 2 and the top of the box 1.

[0054] Among them, the heat insulation layer 3 between the top plate 2 and the top of the box 1 effectively reduces the impact of the external ambient temperature on the interior of the box 2. In particular, when the distribution box is exposed to a high temperature environment, the heat insulation layer can maintain the relative stability of the internal temperature of the box 1, which is conducive to the normal operation of the high voltage combined electrical appliances.

[0055] The insulation layer 3 is typically made of materials with good thermal insulation properties, such as foam plastics and mineral wool. These materials can effectively block heat transfer, forming a thermal barrier between the interior of the enclosure 1 and the external environment (top of the enclosure). The top plate 2 serves as a support and protective layer for the insulation layer, ensuring its integrity and stability.

[0056] In addition, a water collection tank 4 is provided at the bottom of the enclosure 1 to collect water that may seep in due to rain, condensation, or other reasons. Through a reasonable drainage design, the water collection tank can quickly drain the accumulated water, preventing water from accumulating inside the enclosure and causing damage to the high-voltage switchgear.

[0057] In this embodiment, the housing 1 also contains a thermometer, a hygrometer, and a camera (not shown in the figure). The camera is angle-adjustable to monitor the high-voltage switchgear, the hygrometer, and the thermometer.

[0058] The thermometer and hygrometer can monitor the temperature and humidity environment inside enclosure 1 in real time, ensuring that the high-voltage switchgear operates under suitable conditions. Once the temperature or humidity exceeds the preset range, the control system can immediately issue an early warning to remind maintenance personnel to take measures.

[0059] Specifically, the camera can capture real-time images of the interior of the distribution box, including the operating status of the high-voltage switchgear, and readings from thermometers and hygrometers. Through the control system, maintenance personnel can remotely monitor the distribution box's status, promptly identify and address potential problems, reduce on-site inspections, and improve maintenance efficiency.

[0060] In this embodiment, a liquid-cooled drive assembly 9 is also connected in series on the circulation pipe 12, and the liquid-cooled drive assembly 9 includes:

[0061] outer cylinder 91;

[0062] The inner cylinder 92 is vertically slidably disposed in the outer cylinder 91 by means of a sliding ring seat 914, and a stator 94 is provided on the inner surface of the inner cylinder 92, and a side through hole is provided on the side of the inner cylinder 92.

[0063] The rotor 93 has a gap in the inner space of the stator 94 and rotates with the stator 94;

[0064] A rotating shaft 95 has one end connected to the rotor 93 and the other end connected to a fan blade 96;

[0065] A liquid collecting ring seat 911 is fixed to the upper end of the outer cylinder 91, and a first liquid collecting port 912 corresponding to the side through hole is opened on the side of the liquid collecting ring seat 911. The liquid collecting ring seat 911 and the outer cylinder 91 are connected in series to the circulation pipe 12.

[0066] When the coolant flows in the circulation pipe 12, it first enters the outer cylinder 91 of the liquid-cooled drive assembly 9. After entering the outer cylinder 91, the coolant flows through the gap between the rotor and stator 94 in the inner cylinder 92, and the rotor begins to rotate. As the rotor 93 rotates, the coolant continues to flow and enters the liquid collecting ring seat 911 through the side through-hole on the side of the inner cylinder 92, and then flows back to the circulation pipe 12. In the circulation pipe 12, the coolant continues to flow and finally enters the heat exchange pipe 11 for heat exchange to reduce the temperature.

[0067] One end of the rotating shaft 95 is connected to the rotor 93, and the other end is connected to the fan blade 96. As the rotor 93 rotates, the rotating shaft 95 drives the fan blade 96 to rotate. The air generated by the fan blade 96 flows over the surface of the heat exchange tube 11, and then this cooled air enters the driving range of the fan 8, is further accelerated by the fan and blown into the housing 1 to help dissipate heat from the high-voltage combined electrical appliance.

[0068] In addition, the outer cylinder 91 is connected to the circulation pipe 12 in series through the sealing seat 99. The middle part of the sealing seat 99 is a through-type boss structure. An electromagnetic block 910 is embedded in the through-type boss structure. The inner cylinder 92 is rotatably sealed with a liquid inlet seat 97 corresponding to the through-type boss structure. The liquid inlet seat 97 is connected to the rotor. The top of the liquid inlet seat 97 has a drain hole 98.

[0069] In addition, a guide hole 915 is provided on the sliding ring seat 914, and a second liquid collection port 913 corresponding to the guide hole 915 is provided at the bottom of the liquid collection ring seat 911.

[0070] When the pump body is turned on, the electromagnetic block is turned on when the temperature difference parameter is greater than the second threshold, thereby positioning the liquid inlet seat 97 on the sealing seat 99. When the temperature difference parameter is greater than the first threshold and less than the second threshold, the electromagnetic block is turned off.

[0071] The electromagnetic block 910 is embedded in the through-type boss structure of the sealing seat 99, and its opening and closing state is controlled by the control system based on the temperature difference parameter. When the temperature difference parameter is greater than a second threshold, the electromagnetic block opens, generating magnetic force to position the liquid inlet seat 97 on the sealing seat 99. This positioning is achieved through magnetic attraction to ensure the sealing between the liquid inlet seat 97 and the sealing seat 99, so that the coolant can only flow through the gap between the rotor and the stator.

[0072] When the temperature difference parameter is greater than the first threshold but less than the second threshold, the electromagnetic block is closed, and the liquid inlet seat 97 is no longer fixed on the sealing seat 99. Under the action of hydraulic pressure, the sliding ring seat 914 will float upward. When the pump body pumps liquid, the flow rate often fluctuates slightly within a certain range. Therefore, the sliding ring seat 914 will float up and down slightly. At this time, some coolant enters the gap between the rotor and the stator, and some coolant enters the guide hole 915.

[0073] It needs to be explained that when the coolant flows through the gap between the rotor and the stator, the temperature will rise due to mechanical work.

[0074] It should be explained that the main task of the pump body is to provide a continuous flow of coolant to the heat exchange tubes. This is to ensure that the fan can effectively exchange heat with the heat exchange tubes, thereby reducing the temperature of the high-voltage switchgear.

[0075] The rotation of the fan blades is incidental in the liquid-cooled drive assembly; it utilizes the power generated by the coolant flowing through the gap between the rotor and stator to rotate. However, the rotation of the fan blades is not the primary goal, but rather a means to improve heat dissipation efficiency.

[0076] When the coolant temperature is high, the primary task is to keep the coolant at a lower temperature before it enters the heat exchange tubes to ensure effective heat exchange. At this time, it's important to minimize the extra heat generated by the coolant during fan blade operation; therefore, the coolant flow rate to the fan blades can be reduced by turning off the solenoid.

[0077] When the coolant temperature is very low, the coolant can be fully utilized to drive the fan blades to rotate, thereby improving the overall heat dissipation capacity of the liquid-cooled drive components to prepare for unforeseen needs or to cope with possible future increases in heat.

[0078] In this embodiment, the bottom of the diversion chamber 10 is also equipped with a dustproof drying net 13 using an elastic frame, the rotating shaft 95 passes through the dustproof drying net 13, and the top of the liquid collection ring seat 911 is connected to the dustproof drying net 13.

[0079] The main function of the dustproof drying net 13 is to prevent external dust and impurities from entering the housing 1. At the same time, since the dustproof drying net 13 usually also has a certain drying function (for example, it is made of breathable and moisture-absorbing material), it can also reduce the moisture in the housing 1 to a certain extent.

[0080] It should be noted that when the pump body pumps liquid, the flow rate often fluctuates slightly within a certain range. Therefore, the sliding ring seat 914 will float up and down. Since the top of the liquid collecting ring seat 911 is connected to the dustproof drying net 13, the dustproof drying net 13 will also float up and down, thus shaking off the dust attached to its lower surface.

[0081] In this embodiment, a frame 14 is also fixed in the diversion compartment 10, and a spring 15 is fixed at the bottom of the frame 14. The spring 15 is connected to the dustproof drying net 13. The combination of the frame 14 and the spring 15 provides elastic buffer for the dustproof drying net 13, reduces the impact load, and improves the stability and durability of the distribution box.

[0082] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A combined distributed distribution box for high-voltage combined electrical appliances, characterized in that: include: The box (1) has a door on one side, a first vent hole in the middle of the door, and a dry cotton covering the first vent hole. The other side of the box is a back panel, and a second vent hole is evenly distributed on the back panel. The first partition (5) and the second partition (6) are vertically fixed in the housing (1), wherein there are gaps between the first partition (5) and the back plate and between the first partition (5) and the second partition (6), and the first partition (5) and the second partition (6) are used to install high voltage combined electrical appliances; A buffer chamber (7) is installed on the back plate and communicates with the second vent hole. Multiple fans (8) are embedded in the buffer chamber (7). A distribution chamber (10) is connected to the air intake of multiple fans (8), and a heat exchange tube (11) is provided in the middle of the distribution chamber (10). Both ends of the heat exchange tube (11) are connected to circulation tubes (12), and the heat exchange tube (11) and circulation tube (12) form a loop. The loop is filled with coolant. The circulation tube (12) is placed in the ground, and a pump body is connected in series on the circulation tube (12). Wherein, when the temperature of the coolant in the circulation pipe (12) is lower than the temperature of the air around the box (1), the temperature difference between the two is the temperature difference parameter. When the temperature difference parameter is greater than the first threshold, the pump is turned on. A liquid-cooled drive assembly (9) is also connected in series on the circulation pipe (12), the liquid-cooled drive assembly (9) comprising: outer cylinder(91); The inner cylinder (92) is vertically slidably disposed in the outer cylinder (91) by means of a sliding ring seat (914), and a stator (94) is provided on the inner surface of the inner cylinder (92), and a side through hole is provided on the side of the inner cylinder (92). The rotor (93) is positioned in the inner space of the stator (94) and rotates in cooperation with the stator (94); A rotating shaft (95) is connected at one end to the rotor (93) and at the other end to a fan blade (96); A liquid collecting ring seat (911) is fixed to the upper end of the outer cylinder (91), and a first liquid collecting port (912) corresponding to the side through hole is opened on the side of the liquid collecting ring seat (911). The liquid collecting ring seat (911) and the outer cylinder (91) are connected in series to the circulation pipe (12).

2. A combined distributed distribution box for high-voltage combined electrical appliances according to claim 1, characterized in that: The surfaces of the first partition (5) and the second partition (6) are each provided with multiple mounting holes.

3. A combined distributed distribution box for high-voltage combined electrical appliances according to claim 1, characterized in that: The top of the box (1) is fixed with a top plate (2), and a heat insulation layer (3) is filled between the top plate (2) and the top of the box (1); a water collection tank (4) is provided at the bottom of the box (1).

4. A combined distributed distribution box for high-voltage combined electrical appliances according to claim 1, characterized in that: The outer cylinder (91) is connected in series to the circulation pipe (12) through the sealing seat (99). The middle part of the sealing seat (99) is a through-type boss structure. An electromagnetic block (910) is embedded in the through-type boss structure. The inner cylinder (92) is internally sealed and rotatably provided with a liquid inlet seat (97) corresponding to the through-type boss structure. The liquid inlet seat (97) is connected to the rotor. The top of the liquid inlet seat (97) has a drain hole (98).

5. A combined distributed distribution box for high-voltage combined electrical appliances according to claim 4, characterized in that: The sliding ring seat (914) is provided with a flow guide hole (915), and the bottom of the liquid collecting ring seat (911) is provided with a second liquid collecting port (913) corresponding to the flow guide hole (915).

6. A combined distributed distribution box for high-voltage combined electrical appliances according to claim 5, characterized in that: When the pump body is turned on, the electromagnetic block is turned on when the temperature difference parameter is greater than the second threshold, thereby positioning the liquid inlet seat (97) on the sealing seat (99). When the temperature difference parameter is greater than the first threshold and less than the second threshold, the electromagnetic block is turned off.

7. A combined distributed distribution box for high-voltage combined electrical appliances according to claim 1, characterized in that: The bottom of the diversion chamber (10) is also equipped with a dustproof drying net (13) using an elastic frame. The rotating shaft (95) passes through the dustproof drying net (13), and the top of the liquid collecting ring seat (911) is connected to the dustproof drying net (13).

8. A combined distributed distribution box for high-voltage combined electrical appliances according to claim 7, characterized in that: The diversion chamber (10) is also fixed with a frame (14), and a spring (15) is fixed at the bottom of the frame (14). The spring (15) is connected to the dustproof drying net (13).

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