A high-voltage switchgear with heat dissipation and ventilation structure and its control method

Abstract

This invention discloses a high-voltage switchgear with a heat dissipation and ventilation structure and a control method, belonging to the technical field of high-voltage switchgear. The switchgear includes: a controller, an information acquisition unit, a cabinet, and a cooling box disposed on the side of the cabinet; a rotating door is provided on the cooling box, and a liquid cooling device is disposed inside the cooling box; the information acquisition unit is used to acquire the internal temperature and load of the cabinet; the controller is used to determine the opening degree of the rotating door based on the internal temperature and load of the cabinet, and to control the rotating door according to the determined opening degree. This ensures both effective heat dissipation inside the switchgear and effective protection of the heat dissipation device, improving the heat dissipation stability of the heat dissipation device. It solves the technical problem in related technologies where protecting the liquid cooling device with a shell affects the heat dissipation performance of the liquid cooling device.

Description

Technical Field

[0001] This invention relates to the field of high-voltage switchgear technology, and in particular to a high-voltage switchgear with a heat dissipation and ventilation structure and a control method thereof. Background Technology

[0002] The statements in this section are merely background information related to the present invention and do not necessarily constitute prior art.

[0003] High-voltage switchgear is a type of high-voltage electrical equipment used in power systems to control, protect, and isolate electrical equipment. It is mainly used in high-voltage power distribution systems, such as substations and power plants, to control and protect high-voltage lines. Through internal switching devices, protection devices, and measuring devices, high-voltage switchgear functions to cut off current and protect electrical equipment from overloads, short circuits, and other faults.

[0004] In related technologies, in order to dissipate the heat generated by the equipment inside the high-voltage switchgear in a timely manner, a liquid cooling device is installed on the high-voltage switchgear. The liquid cooling device exchanges heat with the high-voltage switchgear to dissipate the heat inside the high-voltage switchgear.

[0005] In related technologies, protecting the liquid cooling device with a casing affects its heat dissipation performance; or leaving the liquid cooling device exposed without protection also affects its performance. Summary of the Invention

[0006] To address the aforementioned problems, this invention proposes a high-voltage switchgear with a heat dissipation and ventilation structure and a control method. By placing a liquid cooling device inside a cooling box and installing a rotating door on the cooling box, the opening of the rotating door is controlled according to the temperature inside the cabinet and the load. This ensures effective heat dissipation within the switchgear while also providing effective protection for the heat dissipation device, thereby improving the heat dissipation stability of the device.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: In the first aspect, a high-voltage switchgear with a heat dissipation and ventilation structure is proposed, including: a controller, an information acquisition unit, a cabinet, and a cooling box disposed on the side of the cabinet. A rotating door is installed on the cooling box, and a liquid cooling device is installed inside the cooling box; The information acquisition unit is used to acquire the temperature and load inside the cabinet; The controller determines the opening degree of the revolving door based on the temperature and load inside the cabinet, and controls the revolving door according to the determined opening degree. Specifically, when the load is less than the set load threshold and the temperature is less than the set temperature value, the revolving door is fully closed; when the load is less than the set load threshold but the temperature is greater than the set temperature value, the opening degree of the revolving door is determined based on the temperature; when the temperature is less than the set temperature value but the load is greater than the set load threshold, the opening degree of the revolving door is determined based on the load; and when the load is greater than or equal to the set load threshold and the temperature is greater than or equal to the set load threshold, the opening degree of the revolving door is determined based on both the load and the temperature.

[0008] Furthermore, when the opening degree of the revolving door is determined based on temperature, the opening degree of the revolving door increases as the temperature rises.

[0009] Furthermore, when determining the revolving door opening based on the load, the revolving door opening increases as the load increases.

[0010] Furthermore, the revolving door opening is determined based on the relationship curves between the revolving door opening and the load and temperature. Specifically, multiple load and temperature data with known optimal revolving door openings are fitted to determine the revolving door opening curve.

[0011] Furthermore, the liquid cooling device includes a pump, a liquid storage tank, and pipes; the liquid storage tank contains refrigerant; the pump is connected to the liquid storage tank via pipes.

[0012] Furthermore, the controller is also used to control the pump to start when the temperature inside the cabinet is greater than the set lower limit, or when the load is greater than the set lower limit.

[0013] Furthermore, cabinet doors are installed on the cabinet body.

[0014] Furthermore, casters are installed at the bottom of the cabinet.

[0015] Furthermore, ventilation openings are installed on the cabinet, and filters are installed at the ventilation openings.

[0016] Secondly, a control method for a high-voltage switchgear with a heat dissipation and ventilation structure, as proposed in the first aspect, is presented, including: Obtain the temperature and load inside the cabinet; The opening degree of the revolving door is determined based on the temperature and load inside the cabinet, and the revolving door is controlled according to the determined opening degree. Specifically, when the load is less than the set load threshold and the temperature is less than the set temperature value, the revolving door is fully closed; when the load is less than the set load threshold but the temperature is greater than the set temperature value, the opening degree of the revolving door is determined based on the temperature; when the temperature is less than the set temperature value but the load is greater than the set load threshold, the opening degree of the revolving door is determined based on the load; when the load is greater than or equal to the set load threshold and the temperature is greater than or equal to the set load threshold, the opening degree of the revolving door is determined based on both the load and the temperature.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: This invention proposes a high-voltage switchgear with a heat dissipation and ventilation structure and a control method thereof. The switchgear has a cooling box on the side of the cabinet, a liquid cooling device is placed inside the cooling box, and a rotating door is installed on the cooling box. The opening of the rotating door is controlled according to the temperature inside the cabinet and the load, which not only ensures the heat dissipation effect inside the switchgear, but also effectively protects the heat dissipation device and improves the heat dissipation stability of the heat dissipation device.

[0018] Advantages of additional aspects of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0019] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an undue limitation of this application.

[0020] Figure 1 This is a schematic diagram of the overall structure of a high-voltage switchgear with a heat dissipation and ventilation structure proposed in this invention. Figure 2 for Figure 1 A magnified view of a section at point A in the middle; Figure 3 This is a schematic diagram of the liquid cooling device proposed in this invention.

[0021] The components include: 1. Cabinet body; 2. Cabinet door; 3. Base; 4. Groove; 5. Spindle; 6. Brake caster; 7. Cooling tank; 701. Liquid storage tank; 702. Pipeline; 703. Pump; 704. Revolving door; 8. Filter screen; 9. Controller. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of this application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0024] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0025] In this invention, terms such as "upper," "lower," "left," "right," "front," "back," "vertical," "horizontal," "side," and "bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are used only to facilitate the description of the structural relationships of the various components or elements of this invention and do not specifically refer to any component or element in this invention. They should not be construed as limiting the invention.

[0026] In this invention, terms such as "fixed connection," "connected," and "linked" should be interpreted broadly, indicating a fixed connection, an integral connection, or a detachable connection; a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can determine the specific meaning of these terms in this invention based on the specific circumstances, and they should not be construed as limitations on the invention.

[0027] Where there is no conflict, the embodiments and features in the embodiments of the present invention can be combined with each other.

[0028] Example 1 In this embodiment, a high-voltage switchgear with a heat dissipation and ventilation structure is disclosed, such as... Figures 1-3 As shown, it includes: controller 9, information acquisition unit, cabinet 1 and cooling box 7 installed on the side of the cabinet; A rotating door 704 is installed on the cooling box 7, and a liquid cooling device is installed inside the cooling box 7; The information acquisition unit is used to acquire the temperature and load inside cabinet 1; Controller 9 is used to determine the opening degree of the revolving door based on the temperature and load inside the cabinet, and to control the revolving door according to the determined opening degree. Specifically, when the load is less than the set load threshold and the temperature is less than the set temperature value, the revolving door is controlled to be fully closed; when the load is less than the set load threshold but the temperature is greater than the set temperature value, the opening degree of the revolving door is determined based on the temperature; when the temperature is less than the set temperature value but the load is greater than the set load threshold, the opening degree of the revolving door is determined based on the load; when the load is greater than or equal to the set load threshold and the temperature is greater than or equal to the set load threshold, the opening degree of the revolving door is determined based on both the load and the temperature.

[0029] Various electrical devices are installed inside the cabinet 1. The operation of these devices generates heat. In order to ensure the normal operation of the electrical devices, a liquid cooling device is installed on the side of the cabinet 1. The liquid cooling device exchanges heat with the inside of the cabinet, thereby dissipating the heat inside the cabinet.

[0030] The information acquisition unit includes a temperature sensor and a current sensor. Temperature sensors are installed in temperature-sensitive areas inside the cabinet to ensure the accuracy and speed of temperature signal sensing within the cabinet.

[0031] Current sensors are used to acquire the output current of equipment inside the cabinet, and the output current is used to characterize the load inside the cabinet.

[0032] The liquid cooling device includes a pump 703, a liquid storage tank 701, and a pipe 702. The liquid storage tank 701 contains refrigerant. The pump 703 is connected to the liquid storage tank 701 via the pipe 702. The pump 703 pumps the refrigerant from the liquid storage tank 701 into the pipe 702, where it exchanges heat with the interior of the cabinet. After heat exchange, the refrigerant returns to the liquid storage tank 701 via the pipe 702. Furthermore, in addition to heat exchange with the interior of the cabinet, the refrigerant in the pipe 702 also exchanges heat with the external environment through an external cooling device, releasing heat into the environment. Thus, the refrigerant displaces heat from inside the cabinet to the external environment.

[0033] External cooling devices such as radiators and cooling towers.

[0034] Coolant, typically water, ethylene glycol solution, or other liquids with high heat capacity, is used to ensure that the liquid circulates throughout the system.

[0035] These pipes, typically made of metal or high-strength plastic, deliver the coolant to the heat source areas inside cabinet 1. They possess good thermal conductivity, ensuring the coolant can effectively contact and remove heat. They also propel the coolant flow within the system, maintaining its circulation and ensuring continuous heat absorption and removal.

[0036] The heat source area is the area where high-voltage switches and circuit breakers are installed.

[0037] Compared to air, liquids have a higher specific heat capacity (the ability of a unit mass of liquid to absorb heat). This means that liquids can absorb more heat and transfer it more effectively, especially under high loads, keeping the internal temperature of equipment relatively low. Liquids generally have higher thermal conductivity than air, allowing them to absorb heat from heat sources more quickly and reducing the risk of equipment overheating. Due to their higher heat capacity, liquid coolants can absorb and release heat smoothly during circulation, avoiding temperature fluctuations that can occur with air cooling and ensuring stable operation of equipment under high loads. Liquid cooling can maintain a stable operating temperature under high load and high temperature environments, and is less affected by changes in external temperature or fluctuations in system load.

[0038] Liquid cooling systems do not rely on large fans and heat sinks, thus saving more space than air cooling systems. They can be compactly integrated into or alongside a cabinet, making them suitable for environments with limited space. Unlike fan cooling, which depends on large airflows, liquid cooling systems are quieter and suitable for environments requiring low-noise operation. In high-temperature environments, air has lower density and mobility, resulting in poor heat dissipation. Liquid cooling, however, can withstand greater temperature differences, continuously removing heat generated by the equipment and maintaining it within an ideal temperature range.

[0039] Excessive dust on the outside of the pipe will affect its heat dissipation efficiency and the stable operation of the pump. Therefore, in order to improve the heat dissipation efficiency and stability of the liquid cooling device, a cooling box 7 is installed outside the liquid cooling device. However, the cooling box 7 will affect the heat dissipation effect between the pipe and the external environment to a certain extent. Therefore, in this embodiment, a rotating door 704 is installed on the cooling box 7. By opening and closing the rotating door in a timely manner, the heat dissipation effect of the liquid cooling device can be guaranteed while protecting the liquid cooling device.

[0040] To improve the heat dissipation effect of the liquid cooling device, this embodiment also provides a rotating door 704 on the cooling box 7. The rotating door 704 is connected to the cooling box 7 through an electric actuator, and the rotating door 704 is driven to rotate by the electric actuator.

[0041] The actuator can be a stepper motor, servo motor or other drive device with precise angle control function, and is equipped with an angle feedback device to improve execution accuracy and response speed.

[0042] When the load is less than the set load threshold and the temperature is less than the set temperature value, it is determined that the cabinet does not need to improve the heat dissipation efficiency of the liquid cooling unit. Therefore, the rotating door is kept fully closed to effectively protect the liquid cooling unit. When the load is less than the set load threshold but the temperature is greater than the set temperature value, the opening of the rotating door is determined based on the temperature to improve the heat exchange efficiency between the liquid cooling unit and the outside environment, thereby improving the heat dissipation efficiency of the cabinet. When the temperature is less than the set temperature value but the load is greater than the set load threshold, it is predicted that a large amount of heat will be generated inside the cabinet. In this case, the opening of the rotating door is determined based on the load to control the opening of the rotating door in advance, so as to dissipate the heat inside the cabinet in a timely manner and prevent the temperature inside the cabinet from rising. When the load is greater than or equal to the set load threshold and the temperature is greater than or equal to the set load threshold, the opening of the rotating door is determined based on both the load and the temperature. In this case, the control of the rotating door opening takes into account both the current temperature and the impact of the heat generated by the load on the future temperature, further improving the heat dissipation efficiency of the cooling unit.

[0043] Specifically, when determining the revolving door opening based on temperature, the opening increases with rising temperature. When determining the opening solely based on temperature, the curve showing the relationship between the opening and temperature is used. This curve can be linear or segmented. A linear curve, for example, indicates that revolving door 704 is closed when the temperature is below 30℃ and fully open when the temperature exceeds 50℃. When the temperature is between 30℃ and 50℃, the relationship between temperature and opening is linear, and the opening increases with temperature. A segmented curve indicates that revolving door 704 is closed when the temperature is below 30℃; 30% open when the temperature is between 30℃ and 40℃; 60% open when the temperature is between 40℃ and 50℃; and fully open when the temperature exceeds 50℃. This control mechanism automatically optimizes ventilation intensity based on the temperature inside the cabinet, effectively controlling coolant evaporation and energy consumption while ensuring heat dissipation efficiency, achieving an intelligent balance between heat dissipation efficiency and energy consumption.

[0044] When the revolving door opening is determined based on the load, the opening increases as the load increases. When the revolving door opening is determined solely based on the load, the opening is determined using the curve showing the relationship between the revolving door opening and the load. This curve can be linear or segmented. Opening the revolving door to the opening corresponding to the load allows the heat generated by the equipment to be dissipated in a timely manner, effectively preventing heat buildup and temperature rise inside the cabinet.

[0045] The revolving door opening degree is determined based on the relationship curve between load and temperature using the revolving door opening degree curve. Specifically, multiple load and temperature data points with known optimal revolving door opening degrees are fitted to determine the revolving door opening degree curve. When determining the revolving door opening degree using this curve, both the dissipation of high-temperature heat from the cabinet and the dissipation of heat generated by the equipment under high load are considered to ensure that the temperature inside the cabinet is reduced to the required level and stabilized within the acceptable range.

[0046] The control logic for the opening of the revolving door proposed in this embodiment realizes the dynamic opening and closing adjustment of the revolving door 704, thereby accurately controlling the heat dissipation intensity of the cabinet.

[0047] In addition, the controller is also used to control the pump to start when the temperature inside the cabinet is greater than the set lower limit or the load is greater than the set lower limit.

[0048] When the temperature inside the cabinet is less than or equal to the set lower limit and the load is less than or equal to the set lower limit, it indicates that the cabinet has no heat dissipation requirement, so the pump does not start and heat is not dissipated through the liquid cooling device.

[0049] In this embodiment, both the pump 703 and the controller 9 are equipped with batteries to provide power to the pump and the controller.

[0050] In this embodiment, the revolving door 704 is a sealed observation door made of high-temperature resistant transparent acrylic material. The door body is connected to the cooling box 7 by hinges and is equipped with a knob-type locking device.

[0051] To facilitate the installation and maintenance of equipment inside the cabinet, a cabinet door 2 is installed on the cabinet 1. The cabinet door 2 can be opened and closed.

[0052] To facilitate movement, casters were also installed at the bottom of cabinet 1.

[0053] Among them, the movable wheels are braked universal wheels 6, the bottom of the cabinet 1 is equipped with a base 3, the bottom of the base 3 is provided with a groove 4, the groove 4 is installed with a rotating shaft 5, the rotating shaft 5 can rotate 90 degrees; the bottom of the rotating shaft 5 is equipped with braked universal wheels 6.

[0054] By designing the pivot 5 to rotate 90 degrees, users can rotate the brake caster 6 to a position in contact with the ground when movement is needed, ensuring that the equipment can be moved smoothly; when placing, the brake caster 6 can be rotated to a position away from the ground to avoid the caster directly contacting the ground and prevent long-term pressure on the ground from causing indentations.

[0055] Especially on soft surfaces (such as wood flooring and carpet), casters can develop indentations from bearing the weight of equipment for extended periods. This adjustable wheel design ensures that the casters only contact the ground when movement is needed, preventing damage caused by static conditions and protecting the integrity and aesthetics of the floor material.

[0056] The design of the braked casters 6 allows the high-voltage switchgear to be easily pushed, pulled, or rotated when its position needs to be adjusted, enhancing the mobility of the equipment. This is especially important for equipment that requires frequent maintenance or repositioning, reducing labor costs and operational complexity.

[0057] When the equipment is stationary, the casters are raised and the base 3 directly contacts the ground, which provides more stable support, reduces possible shaking or tilting of the equipment when it does not need to be moved, and ensures the stability and safety of the equipment operation.

[0058] When the equipment is stationary, lifting the casters off the ground avoids continuous friction between the casters and the ground, thus reducing wear on the casters. This not only extends the lifespan of the casters but also ensures good mobility of the equipment after long-term use.

[0059] When stationary for extended periods, excessive pressure on the casters can cause uneven load distribution between the wheels and base 3, leading to unnecessary wear. A well-designed system avoids this long-term pressure buildup, thus extending the overall lifespan of the equipment.

[0060] The design of the braked casters ensures that the equipment is firmly fixed in the desired position when stationary. The braking system effectively prevents the equipment from accidentally sliding or tilting, avoiding safety hazards caused by improper movement.

[0061] Users can quickly and easily adjust the position of the casters without additional tools or complicated operations. This design makes moving the device easy and provides stable support when stationary, enhancing the device's safety.

[0062] The design incorporates a braked caster wheel rotation mechanism, making the operation of the high-voltage switchgear more convenient. Users do not need to lift the entire device; simply rotating the casters is sufficient to position or move the equipment. This simplified operation improves work efficiency. Because the device's position can be easily adjusted, operators can quickly rearrange or repair the equipment as needed, enhancing the flexibility and comfort of the working environment.

[0063] Whether on hard surfaces (such as tiles, concrete, etc.) or soft surfaces (such as wood flooring, carpet, etc.), the design of these adjustable wheels effectively prevents damage to the surface and provides a smooth moving and stationary experience.

[0064] This design is suitable for a variety of industrial and commercial environments, especially those requiring frequent relocation or equipment maintenance, offering greater operational flexibility and stability.

[0065] This adjustable-wheel design for high-voltage switchgear not only solves the problem of pressure marks on the ground caused by prolonged equipment stationary positions, but also improves the equipment's flexibility, stability, safety, and service life. Through the rationally designed brake casters 6 and pivot 5, users can easily move the equipment when needed, while ensuring its stability when stationary, avoiding unnecessary wear and damage. This design is particularly important for equipment requiring high safety and efficiency and is widely applicable to various industrial environments.

[0066] In this embodiment, a ventilation opening is provided on the cabinet 1, a filter screen 8 is installed at the ventilation opening, and a fan is installed inside the ventilation opening; the fan exhausts heat from the cabinet, and the filter screen 8 prevents dust from entering the fan and the cabinet.

[0067] Among them, filter 8 can be a HEPA filter.

[0068] Electronic components, contacts, and cooling systems in high-voltage switchgear need to be kept clean. Dust buildup can affect the equipment's heat dissipation efficiency and may even lead to electrical malfunctions. The combination of a fan and a HEPA filter can effectively filter fine particulate matter in the air, preventing dust from entering the cabinet and reducing the risk of equipment failure due to dust accumulation.

[0069] Continuously filtering dust and impurities from the air reduces wear on internal components and extends the equipment's lifespan. This is especially important for critical equipment such as high-voltage switchgear, which typically operates under high loads and high temperatures.

[0070] The function of the fan is to enhance airflow inside cabinet 1, helping the coolant and air system to dissipate heat effectively. The HEPA filter ensures clean air entering the fan, preventing dust from clogging the fan or cooling system's passages, ensuring unobstructed airflow, and further improving heat dissipation efficiency.

[0071] A cooling system free from dust accumulation can absorb and transfer heat more quickly, preventing high temperatures from affecting the electrical equipment inside cabinet 1 and ensuring that the high-voltage switchgear can maintain a suitable operating temperature during long-term operation.

[0072] Thanks to the high-efficiency filtration of the HEPA filter, the interior of cabinet 1 can remain clean for a long time, reducing the frequency of equipment cleaning. This reduces the workload of operators and maintenance personnel, while avoiding equipment damage that may result from frequent disassembly and cleaning.

[0073] Reducing heat dissipation problems or equipment malfunctions caused by dust helps lower costs associated with equipment maintenance and repair. Keeping equipment in good operating condition reduces downtime and maintenance expenses.

[0074] Dust buildup in high-voltage switchgear that has been in operation for a long time can affect the connection stability of electrical components and may even lead to malfunctions such as poor contact and overheating. The combination of a fan and a HEPA filter ensures that dust in the air is effectively filtered, thereby reducing these risks and keeping the equipment in a safe operating condition.

[0075] In high-pressure environments, dust accumulation can cause short circuits or malfunctions in electrical components. Reducing dust ingress through a filtration system can effectively prevent this, improving system safety.

[0076] High-voltage switchgear needs to maintain stable operation, avoiding any external factors that could interfere with its performance. Dust not only affects heat dissipation but can also interfere with the equipment's control and monitoring systems. An efficient dustproof design ensures that all functions of the equipment operate efficiently in a stable environment.

[0077] By reducing downtime caused by dust-related malfunctions or excessive temperatures, operators can manage and control the equipment more efficiently, ensuring the high-efficiency operation of the high-voltage switchgear.

[0078] In high-temperature, high-load environments, good ventilation and air cleanliness are crucial for ensuring the long-term stable operation of equipment. The design combining a fan and a HEPA filter not only improves the cooling effect of the equipment but also creates a cleaner, healthier working environment, reducing airborne pollutants.

[0079] The combination of a fan and a HEPA filter in a highly efficient dustproof design not only keeps the inside of the high-voltage switchgear clean, preventing dust accumulation from affecting heat dissipation and operation, but also improves cooling efficiency, reduces maintenance costs, and enhances equipment safety and stability. This design is suitable for electrical equipment requiring long-term stable operation in harsh environmental conditions and is a key technology for improving the performance and reliability of high-voltage switchgear.

[0080] The usage process of a high-voltage switchgear with a heat dissipation and ventilation structure proposed in this embodiment includes: 1. Equipment Start-up and Preparation Check the equipment: Ensure that all electrical connections are normal and that the electrical components and cooling system (such as cooling box 7, fan, HEPA filter, etc.) in cabinet 1 are in normal working condition.

[0081] Power connection: Connect the power supply and check whether the electrical system starts normally, ensuring that all functional modules (such as the cooling system, controller 9, pump 703, etc.) are ready.

[0082] 2. Mobile devices Activate the movement mode: When the high-voltage switchgear needs to be moved, first ensure that the braking systems of the equipment base 3 and the casters are in the "released" state. If necessary, rotate the brake casters 6 to the ground contact position to ensure the equipment can be moved smoothly.

[0083] Moving the equipment: Gently push the high-voltage switchgear, using the casters to adjust its position. During this process, ensure the ground is level to avoid uneven pressure affecting equipment stability.

[0084] 3. Placement of equipment Stop moving and fix the position: After pushing the high-voltage switchgear to the predetermined position, ensure that the equipment is stable and does not shake.

[0085] Adjust the casters: Lift the casters off the ground by rotating the pivot 5 and ensure the brake system is locked. Ensure the equipment base 3 is in contact with the ground to fix the position of the equipment and prevent it from sliding accidentally.

[0086] 4. Monitoring and Control Temperature and humidity monitoring: The temperature and humidity inside cabinet 1 are monitored in real time by a temperature and humidity alarm installed on cabinet 1. When the temperature is too high or the humidity is abnormal, the alarm light and buzzer will alert the operator.

[0087] Control system: Operators can adjust the pump and rotating door via controller 9 to ensure that the equipment inside the cabinet is always in a suitable working environment. Controller 9 can start or stop pump 703, fans, and other devices as needed.

[0088] 5. Operation of the cooling system After pump 703 starts, it delivers coolant through pipe 702 to the parts inside cabinet 1 that need heat dissipation, absorbing and transferring heat.

[0089] Fan and HEPA filter work together: When the fan starts running, it ensures airflow within cabinet 1. The HEPA filter filters dust and particles in the air, preventing dust accumulation from affecting heat dissipation and ensuring efficient operation of the cooling system.

[0090] Rotating door 704 adjustment: Adjust the rotating door 704 of the cooling box 7 according to temperature changes and blockage requirements to optimize heat dissipation.

[0091] 6. Equipment maintenance and cleaning Regular inspections: Regularly inspect all components of the high-voltage switchgear, especially the cooling system, fans, and filters, to ensure they are functioning properly. Check if the HEPA filters need replacement or cleaning to ensure filtration effectiveness.

[0092] Clean the casters and axle 5: After prolonged use of the equipment, clean the casters and axle 5 regularly to ensure smooth rotation and prevent dust accumulation from affecting the mobility of the equipment.

[0093] 7. Power off and shut down Power off procedure: After finishing using the equipment, ensure that all systems are safely shut down and disconnect the power supply.

[0094] Locking brake casters 6: After the equipment stops working, ensure that the braking system on the casters is locked to secure the equipment and prevent it from moving.

[0095] 8. Safety and Emergency Measures Fault Alarm Handling: When a fault occurs in the equipment (such as excessively high temperature or abnormal humidity), the controller 9 will issue an alarm signal. The operator should check the cause of the fault according to the system prompts and take appropriate emergency measures.

[0096] Emergency Stop: In case of equipment malfunction or safety issues, operators should immediately press the emergency stop button to cut off the power supply and perform necessary inspections and maintenance.

[0097] Example 2 In this embodiment, a control method for a high-voltage switchgear with a heat dissipation and ventilation structure disclosed in Embodiment 1 is disclosed, including: Obtain the temperature and load inside the cabinet; The opening degree of the revolving door is determined based on the temperature and load inside the cabinet, and the revolving door is controlled according to the determined opening degree. Specifically, when the load is less than the set load threshold and the temperature is less than the set temperature value, the revolving door is fully closed; when the load is less than the set load threshold but the temperature is greater than the set temperature value, the opening degree of the revolving door is determined based on the temperature; when the temperature is less than the set temperature value but the load is greater than the set load threshold, the opening degree of the revolving door is determined based on the load; when the load is greater than or equal to the set load threshold and the temperature is greater than or equal to the set load threshold, the opening degree of the revolving door is determined based on both the load and the temperature.

[0098] While the specific embodiments of the present invention have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the present invention. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without creative effort based on the technical solutions of the present invention are still within the scope of protection of the present invention.

Claims

1. A high-voltage switchgear with a heat dissipation and ventilation structure, characterized in that, include: The controller, information acquisition unit, cabinet, and cooling box located on the side of the cabinet; A rotating door is installed on the cooling box, and a liquid cooling device is installed inside the cooling box; The information acquisition unit is used to acquire the temperature and load inside the cabinet; The controller determines the opening degree of the revolving door based on the temperature and load inside the cabinet, and controls the revolving door according to the determined opening degree. Specifically, when the load is less than the set load threshold and the temperature is less than the set temperature value, the revolving door is fully closed; when the load is less than the set load threshold but the temperature is greater than the set temperature value, the opening degree of the revolving door is determined based on the temperature; when the temperature is less than the set temperature value but the load is greater than the set load threshold, the opening degree of the revolving door is determined based on the load; and when the load is greater than or equal to the set load threshold and the temperature is greater than or equal to the set load threshold, the opening degree of the revolving door is determined based on both the load and the temperature.

2. A high-voltage switchgear with a heat dissipation and ventilation structure as described in claim 1, characterized in that, When the opening degree of a revolving door is determined based on temperature, the opening degree increases as the temperature rises.

3. A high-voltage switchgear with a heat dissipation and ventilation structure as described in claim 1, characterized in that, When the opening of a revolving door is determined based on the load, the opening of the revolving door increases as the load increases.

4. A high-voltage switchgear with a heat dissipation and ventilation structure as described in claim 1, characterized in that, The revolving door opening is determined based on the relationship curves between the revolving door opening and the load and temperature. Specifically, multiple load and temperature data with known optimal revolving door openings are fitted to determine the revolving door opening curve.

5. A high-voltage switchgear with a heat dissipation and ventilation structure as described in claim 1, characterized in that, The liquid cooling device includes a pump, a liquid storage tank, and pipes; the liquid storage tank contains refrigerant; the pump is connected to the liquid storage tank via pipes.

6. A high-voltage switchgear with a heat dissipation and ventilation structure as described in claim 5, characterized in that, The controller is also used to control the pump to start when the temperature inside the cabinet is greater than the set lower limit or the load is greater than the set lower limit.

7. A high-voltage switchgear with a heat dissipation and ventilation structure as described in claim 1, characterized in that, Cabinet doors are installed on the cabinet.

8. A high-voltage switchgear with a heat dissipation and ventilation structure as described in claim 1, characterized in that, The cabinet is equipped with casters at the bottom.

9. A high-voltage switchgear with a heat dissipation and ventilation structure as described in claim 1, characterized in that, Ventilation openings are installed on the cabinet, and filters are installed at the ventilation openings.

10. A control method for a high-voltage switchgear with a heat dissipation and ventilation structure as described in any one of claims 1-9, comprising: Obtain the temperature and load inside the cabinet; The opening degree of the revolving door is determined based on the temperature and load inside the cabinet, and the revolving door is controlled according to the determined opening degree. Specifically, when the load is less than the set load threshold and the temperature is less than the set temperature value, the revolving door is fully closed; when the load is less than the set load threshold but the temperature is greater than the set temperature value, the opening degree of the revolving door is determined based on the temperature; when the temperature is less than the set temperature value but the load is greater than the set load threshold, the opening degree of the revolving door is determined based on the load; when the load is greater than or equal to the set load threshold and the temperature is greater than or equal to the set load threshold, the opening degree of the revolving door is determined based on both the load and the temperature.

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