A multifunctional low-voltage switch control cabinet and its control method

Abstract

This invention discloses a multifunctional low-voltage switch control cabinet and its control method, belonging to the field of low-voltage switch control cabinets. It includes a low-voltage switch control cabinet body, with a first heat dissipation mesh plate at the top of the front face of the cabinet body, a first through groove at the bottom of the side wall, and an outer shell arm sealed and fixed to the side wall, covering the first through groove. An inner shell arm is vertically and movably inserted through the top of the outer shell arm, and a fourth through groove is formed at the bottom of the inner shell arm. The inner shell arm and the internal space of the low-voltage switch control cabinet are connected through the first and fourth through grooves. A second heat dissipation mesh plate is provided on the top face of the low-voltage switch control cabinet. The beneficial effects of this invention are that it provides a multifunctional low-voltage switch control cabinet and its control method, achieving multi-stage heat dissipation for the low-voltage switch control cabinet body, improving heat dissipation efficiency, and simultaneously providing a dust cleaning function in conjunction with the heat dissipation structure.

Description

Technical Field

[0001] This invention relates to the field of low-voltage switch control cabinets, and more specifically, to a multifunctional low-voltage switch control cabinet and its control method. Background Technology

[0002] Low-voltage switchgear is a key piece of equipment in power systems used for power distribution, conversion, and control. It is typically suitable for low-voltage power distribution scenarios with AC 50Hz and a rated voltage not exceeding 1000V. Low-voltage switchgear integrates core components such as circuit breakers, contactors, disconnectors, instrument transformers, and protection devices. Through modular design, it realizes the functions of circuit connection, disconnection, protection, and measurement, protecting electrical equipment from damage caused by overloads, short circuits, and other faults. It is widely used in industrial plants, commercial buildings, data centers, and municipal infrastructure, and is an important infrastructure in modern power distribution networks that ensures power supply continuity and equipment reliability.

[0003] Currently, traditional low-voltage switchgear mainly relies on natural heat dissipation, i.e., ventilation holes are made in the cabinet to dissipate heat through natural air convection. However, this heat dissipation method is inefficient. When the internal load of the switchgear is large and generates a lot of heat, natural convection alone is insufficient to quickly and effectively remove the heat, easily leading to excessively high internal temperatures. Excessive temperatures accelerate the aging of electrical components inside the cabinet, reducing their lifespan and potentially causing electrical faults, affecting the stable operation of the power system. Furthermore, during long-term operation, a large amount of dust accumulates on the surfaces of internal components in low-voltage switchgear. This dust not only affects the heat dissipation performance of electrical components but may also cause safety hazards such as short circuits. However, most existing low-voltage switchgear lacks effective dust removal capabilities, usually requiring regular manual cleaning. This not only increases maintenance costs and workload but may also cause operational interruptions during cleaning. Therefore, this invention proposes a multifunctional low-voltage switchgear and its control method. Summary of the Invention

[0004] The summary section of this invention provides a brief overview of the concepts, which will be described in detail in the detailed description section that follows. This summary section is not intended to identify key or essential features of the claimed invention, nor is it intended to limit the scope of the claimed invention.

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing a multifunctional low-voltage switch control cabinet and its control method, thereby solving the problem of poor heat dissipation in existing low-voltage switch control cabinets.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A multifunctional low-voltage switch control cabinet includes a low-voltage switch control cabinet body. A first heat dissipation mesh plate is provided on the top of the front face of the low-voltage switch control cabinet body. A top cover is provided on the top of the low-voltage switch control cabinet body. A first through groove is provided on the bottom of the side wall of the low-voltage switch control cabinet body. An outer shell arm is sealed and fixed on the side wall of the low-voltage switch control cabinet body, and the outer shell arm covers the first through groove. An inner shell arm is vertically and movably inserted through the top of the outer shell arm. A fourth through groove is provided at the bottom of the inner shell arm. The inner shell arm and the internal space of the low-voltage switch control cabinet body are connected through the first and fourth through grooves. A second heat dissipation mesh plate is provided on the top face of the low-voltage switch control cabinet body. The size of the second heat dissipation mesh plate is larger than that of the first heat dissipation mesh plate. A top cover is movably provided on the top of the low-voltage switch control cabinet body. A driving component is provided on the top of the low-voltage switch control cabinet body to drive the top cover to rise and fall, and the driving component drives the top cover to descend and block the second heat dissipation mesh plate. A suction mechanism for generating suction within the inner shell arm is mounted on the top cover.

[0008] Furthermore, the outer casing arm is provided in a pair, and the pair of outer casing arms are distributed on both side walls of the low-voltage switch control cabinet. The bottom of the two side walls of the low-voltage switch control cabinet corresponding to the outer casing arm is provided with a first through groove, and the first heat dissipation mesh plate is located in the center of the front face of the low-voltage switch control cabinet.

[0009] Furthermore, the top cover has a through cavity inside, the top end of the inner shell arm is fixedly connected to the top cover and communicates with the through cavity, a communication opening is provided at the center of the upper surface of the top cover, a draw-out box is provided on the top of the top cover and covers the communication opening, a partition is provided on the opposite side walls of the draw-out box, the suction mechanism is a fan module installed inside the draw-out box, the fan module is assembled between the communication opening and the partition, the side of the draw-out box with the partition is set as a downward inclined slope, and filters are installed in both the first heat dissipation mesh plate and the second heat dissipation mesh plate, the mesh size of the filter is smaller than the mesh size of the partition.

[0010] Furthermore, the driving component is an electric push rod installed on the top of the low-voltage switch control cabinet. The fixed end of the electric push rod extends into the low-voltage switch control cabinet and is fixed therein. The telescopic end of the electric push rod extends vertically upward and is connected to the top cover. A groove is provided at the position where the electric push rod is installed on the low-voltage switch control cabinet to accommodate the connecting seat between the electric push rod and the top cover.

[0011] Furthermore, the inner shell arm facing the low-voltage switch control cabinet has multiple third through slots, which are vertically and equally spaced. The side wall of the low-voltage switch control cabinet has multiple second through slots located above the first through slot, which are vertically and equally spaced. The second and third through slots are the same in size, number, and spacing. The distance between two adjacent third through slots is greater than twice the height of a single third through slot, and the distance between two adjacent second through slots is greater than twice the height of a single second through slot. This is because the initial state requires the use of the height of a second through slot, and the second heat dissipation mode requires a further upward movement of the height of a second through slot.

[0012] Furthermore, a bracket is fixed to the top of the front face of the low-voltage switch control cabinet, a camera is mounted on the bracket, multiple first temperature sensors are evenly installed on the low-voltage switch control cabinet, multiple second temperature sensors are installed on the top cover, and a control panel is also assembled on the low-voltage switch control cabinet. The control panel is connected to the first temperature sensors, the second temperature sensors, and the camera.

[0013] On the other hand, embodiments of this application provide a control method for a multifunctional low-voltage switch control cabinet, wherein the first heat dissipation mesh plate is detachable, and the method includes:

[0014] In response to the cleaning command sent periodically by the central control panel, the monitoring values ​​of multiple first temperature sensors are obtained. When all monitoring values ​​are between 35℃ and 46℃, the top cover is pushed up by the electric push rod, so that the inner shell arm is raised to the second height. At this time, the second and third through slots are still misaligned, the fourth through slot is connected to the first through slot, and the top cover no longer blocks the second heat dissipation mesh.

[0015] Increase the exhaust power of the fan module to increase the air intake of the second and first heat dissipation plates. When the monitoring value of the first temperature sensor drops to 25°C, stop the fan module and send a disassembly prompt command so that the operator can manually disassemble the first heat dissipation plate. After disassembly, click the continue button on the control panel.

[0016] At this point, the top cover continues to rise by pushing the electric push rod, raising the inner shell arm to the third height, at which point the multiple second through slots are aligned with the multiple third through slots;

[0017] The fan module is started at maximum power in a forward-reverse cycle to create a forward and reverse circulating airflow within the low-voltage switch control cabinet.

[0018] The forward airflow is the airflow that enters the low-voltage switch control cabinet through the third and second channels in sequence and is discharged from the second heat dissipation mesh plate. The reverse airflow is the airflow that enters the low-voltage switch control cabinet through the second heat dissipation mesh plate and is discharged through the second and third channels in sequence.

[0019] Stop the fan module and send a panel installation prompt to allow the operator to manually install the first heat sink. After installation, click the Continue button on the control panel.

[0020] The electric push rod is retracted to lower the inner shell arm to the second height, and the fan module is activated to perform exhaust cooling. The temperature value inside the low-voltage switch control cabinet is obtained through the first temperature sensor, and the corresponding cooling mode is configured based on the temperature value inside the low-voltage switch control cabinet.

[0021] The beneficial effects of this invention are as follows:

[0022] This invention achieves multi-stage heat dissipation for low-voltage switch control cabinets. Under normal operating conditions, the top cover seals the second heat dissipation mesh, and the cabinet relies on the first heat dissipation mesh for initial cooling through airflow. When the internal temperature of the cabinet is high, a fan module accelerates the rapid airflow between the inside and outside of the cabinet, enhancing the cooling effect. Furthermore, as the internal temperature continues to rise, a drive mechanism pushes the top cover upwards, unblocking the second heat dissipation mesh. This allows a large amount of outside air to simultaneously enter the cabinet through both the second and first heat dissipation meshes, further accelerating airflow and achieving a progressive improvement in heat dissipation performance. This multi-stage cooling method can flexibly adjust the heat dissipation intensity according to the real-time temperature inside the cabinet, effectively avoiding overheating due to insufficient cooling, ensuring that electrical components operate in a suitable temperature environment, and extending the service life of the low-voltage switch control cabinet.

[0023] This invention features both forward and reverse dust blowing capabilities. By controlling the rising height of the top cover, the second and third through slots are aligned, triggering the fan module in reverse to blow air into the low-voltage switch control cabinet. Because multiple second and third through slots are vertically spaced evenly, they can comprehensively blow dust from components at different heights within the cabinet, causing dust to float to the surface. This reverse dust blowing, combined with multi-stage heat dissipation, effectively removes dust from the cabinet, reducing its impact on electrical components, mitigating safety hazards caused by dust accumulation, and improving the operational reliability of the switch control cabinet. Attached Figure Description

[0024] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention, making other features, objects, and advantages of the invention more apparent. The illustrative embodiments of the invention illustrated in the drawings and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention.

[0025] Furthermore, throughout the accompanying drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and the elements are not necessarily drawn to scale.

[0026] In the attached diagram:

[0027] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 This is a schematic diagram of the structure of the present invention when the top cover is raised;

[0029] Figure 3 This is a schematic diagram of the structure of the outer casing arm and the low-voltage switch control cabinet of the present invention separated;

[0030] Figure 4 This is a schematic diagram of the top cover and inner shell arm of the present invention;

[0031] Figure 5 This is a schematic diagram of the internal structure of the inner shell arm of the present invention;

[0032] Figure 6 For the present invention Figure 3 Enlarged view of point A in the image;

[0033] Figure 7 For the present invention Figure 4 Enlarged view of point B in the image.

[0034] Figure label:

[0035] 1. Low-voltage switch control cabinet; 2. Top cover; 3. Drawer box; 4. Outer shell arm; 5. Bracket; 6. Camera; 7. First heat dissipation mesh plate; 8. Partition mesh; 9. Inner shell arm; 10. Electric push rod; 11. Second heat dissipation mesh plate; 12. Control panel; 13. First through slot; 14. Second through slot; 15. First temperature sensor; 16. Third through slot; 17. Cover plate; 18. Second temperature sensor; 19. Conductive cavity; 20. Connecting port; 21. Fan module; 22. Fourth through slot. Detailed Implementation

[0036] The following is a detailed description of a multifunctional low-voltage switchgear and its control method provided by the present invention, with reference to the accompanying drawings and specific embodiments. It should be noted that, to make the embodiments more detailed, the following embodiments are the best and preferred embodiments; those skilled in the art can also use other alternative methods to implement some known technologies; and the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit the present invention.

[0037] It should be noted that the use of terms such as "an embodiment," "an embodiment," "an exemplary embodiment," and "some embodiments" in the specification indicates that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the art.

[0038] Generally, terms can be understood at least partly from their use in context. For example, depending at least partly on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in a singular sense, or a combination of features, structures, or characteristics in a plural sense. Additionally, the term "based on" can be understood not necessarily to convey an exclusive set of factors, but rather, alternatively, depending at least partly on the context, to allow for the presence of other factors that are not necessarily explicitly described.

[0039] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0040] Example 1:

[0041] Reference Figure 1-7As shown, this invention provides a multifunctional low-voltage switch control cabinet, including a low-voltage switch control cabinet body 1. The low-voltage switch control cabinet body 1 can be any existing cabinet-type low-voltage switch control cabinet on the market. A first heat dissipation mesh plate 7 is provided on the top of the front face of the low-voltage switch control cabinet body 1, and the first heat dissipation mesh plate 7 is centrally distributed. A top cover 2 is provided on the top of the low-voltage switch control cabinet body 1. A first through groove 13 is provided on the bottom of the side wall of the low-voltage switch control cabinet body 1. An outer shell arm 4 is sealed and fixed on the side wall of the low-voltage switch control cabinet body 1. The outer shell arm 4 covers the first through groove 13. An inner shell arm 9 is vertically and movably inserted through the top of the outer shell arm 4. A fourth through groove 22 is provided at the bottom of the inner shell arm 9. The inner shell arm 9 and the internal space of the low-voltage switch control cabinet body 1 are connected through the first through groove 13 and the fourth through groove 22. A second heat dissipation mesh 11 is provided on the top surface of the low-voltage switch control cabinet 1. The second heat dissipation mesh 11 is also centrally located, and its size is larger than that of the first heat dissipation mesh 7. A top cover 2 is movably installed on the top of the low-voltage switch control cabinet 1. A driving component is provided on the top of the low-voltage switch control cabinet 1 to drive the top cover 2 to rise and fall, thereby sealing the second heat dissipation mesh 11. The top cover 2 is equipped with a suction mechanism to generate suction within the inner shell arm 9. During normal operation of the low-voltage switch control cabinet 1, the top cover 2 covers the top of the low-voltage switch control cabinet 1, sealing the second heat dissipation mesh 11. A cover plate 17 is provided on the side of the top cover 2 facing the first heat dissipation mesh 7, which provides some shielding for the front face of the low-voltage switch control cabinet 1. At this time, the low-voltage switch control cabinet 1 relies on the first heat dissipation mesh 7 for heat dissipation through air circulation. The suction mechanism generates suction within the upper inner shell arm 9, drawing air outwards from the interior of the low-voltage switch control cabinet 1. Outside air then rapidly enters the cabinet through the first heat dissipation mesh 7, achieving rapid airflow and accelerating heat dissipation. Furthermore, the top cover 2 is raised by a drive mechanism, no longer blocking the second heat dissipation mesh 11. Because the second heat dissipation mesh 11 is larger than the first heat dissipation mesh 7, a large amount of outside air can simultaneously enter the cabinet from both meshes, further accelerating airflow and enhancing heat dissipation.

[0042] Furthermore, in this embodiment, the top cover 2 has a conductive cavity 19 inside, the top end of the inner shell arm 9 is fixedly connected to the top cover 2, and the top end of the inner shell arm 9 communicates with the conductive cavity 19. A connecting opening 20 is provided in the center of the upper surface of the top cover 2. A drawer box 3 is provided on the top of the top cover 2, and the drawer box 3 covers the connecting opening 20. A mesh 8 is provided on the opposite side walls of the drawer box 3. The suction mechanism is a fan module 21 installed inside the drawer box 3. The fan module 21 is assembled between the connecting opening 20 and the mesh 8. By activating the fan module 21, the air inside and outside the low-voltage switch control cabinet 1 can be circulated using the first heat dissipation mesh 7, the second heat dissipation mesh 11, the connecting opening 20, the conductive cavity 19, the inner shell arm 9, the first through slot 13, and the fourth through slot 22. The side of the drawer box 3 equipped with the mesh 8 is set as a downward sloping surface, which can minimize the accumulation of dust on the surface of the mesh 8.

[0043] In a further embodiment, a pair of outer shell arms 4 are provided, distributed on both side walls of the low-voltage switch control cabinet 1. The bottom of the two side walls corresponding to the outer shell arms 4 of the low-voltage switch control cabinet 1 are provided with first through slots 13. The first heat dissipation mesh plate 7 is located in the center of the front end face of the low-voltage switch control cabinet 1. An inner shell arm 9 is inserted into each outer shell arm 4. Filters are installed in both the first heat dissipation mesh plate 7 and the second heat dissipation mesh plate 11. The mesh size of the filter is smaller than that of the partition mesh 8. Through this structural design, after the outside air enters the low-voltage switch control cabinet 1 from the first heat dissipation mesh plate 7 or the second heat dissipation mesh plate 11, the airflow flows from top to bottom, which is conducive to the discharge of dust inside the low-voltage switch control cabinet 1.

[0044] In this embodiment, the driving component is an electric push rod 10 installed at the top of the low-voltage switch control cabinet 1. The fixed end of the electric push rod 10 extends into the low-voltage switch control cabinet 1 and is fixed therein. The telescopic end of the electric push rod 10 is vertically upward and connected to the top cover 2. Specifically, the electric push rod 10 is bolted to the top cover 2 through a connecting seat. A groove is provided at the position where the electric push rod 10 is installed on the low-voltage switch control cabinet 1 to accommodate the connecting seat between the electric push rod 10 and the top cover 2, so that the top cover 2 can tightly cover the top of the low-voltage switch control cabinet 1 to seal the second heat dissipation mesh plate 11.

[0045] In a further embodiment, the inner shell arm 9 has multiple third through slots 16 on the side facing the low-voltage switch control cabinet 1. The multiple third through slots 16 are vertically and equally spaced. The side wall of the low-voltage switch control cabinet 1 has multiple second through slots 14 located above the first through slot 13. The multiple second through slots 14 are vertically and equally spaced. The second through slots 14 and the third through slots 16 are the same in size, number, and spacing. The distance between two adjacent third through slots 16 is greater than twice the height of a single third through slot 16. The distance between two adjacent second through slots 14 is greater than twice the height of a single second through slot 14. When the height of the top cover 2 is equal to the distance between two adjacent second through slots 14 or third through slots 16, the second through slots 14 and third through slots 16 can be aligned. At this time, the fan module 21 can blow air into the low-voltage switch control cabinet 1 for dust removal. When the height of the top cover 2 is equal to the height of a single second through slot 14 or third through slot 16, it is used for air circulation and heat dissipation inside and outside the low-voltage switch control cabinet 1.

[0046] In a further embodiment, a bracket 5 is fixed to the top of the front face of the low-voltage switch control cabinet 1. A camera 6 is installed on the bracket 5 for monitoring the operating status of the low-voltage switch control cabinet 1. Multiple first temperature sensors 15 are evenly installed on the low-voltage switch control cabinet 1 for monitoring the internal operating temperature of the low-voltage switch control cabinet 1. Multiple second temperature sensors 18 are installed on the top cover 2 for monitoring the temperature of the air discharged from the low-voltage switch control cabinet 1 inside the top cover 2 during heat dissipation. A control panel 12 is also assembled on the low-voltage switch control cabinet 1. The control panel 12 is connected to the first temperature sensors 15, the second temperature sensors 18 and the camera 6. The control panel 12 is set independently of the power distribution line of the low-voltage switch control cabinet 1.

[0047] Working Principle: In this multi-functional low-voltage switch control cabinet and its control method, when the low-voltage switch control cabinet 1 is working normally, the electric push rod 10 retracts, causing the top cover 2 to cover the top of the low-voltage switch control cabinet 1. The top cover 2 seals the second heat dissipation mesh plate 11. At this time, the fourth through groove 22 at the bottom of the inner shell arm 9 is aligned with the first through groove 13, and the second through groove 14 and the third through groove 16 are misaligned. The low-voltage switch control cabinet 1 relies on the first heat dissipation mesh plate 7 for heat dissipation through air circulation. Simultaneously, multiple first temperature sensors 15 monitor the internal temperature of the low-voltage switch control cabinet 1 in real time. When the internal temperature of the low-voltage switch control cabinet 1 is detected... When the temperature is above 35 degrees Celsius, the fan module 21 is activated to draw air out of the exhaust box 3 through the mesh 8. The air is drawn out through the connecting port 20, the conductive cavity 19, the inner shell arm 9, and the fourth through slot 22 at the first through slot 13, which generates suction to draw air out of the low-voltage switch control cabinet 1. Outside air enters the low-voltage switch control cabinet 1 quickly through the first heat dissipation mesh 7, realizing rapid air circulation inside and outside the low-voltage switch control cabinet 1 and accelerating heat dissipation. It should be noted that this embodiment does not limit the direction of the heat dissipation air duct, that is, the first heat dissipation mesh 7 and the second heat dissipation mesh 11 can also be the exhaust port. In this case, the fan module 21 is the air inlet.

[0048] Furthermore, when the temperature inside the low-voltage switch control cabinet 1 is detected to be higher than 46 degrees Celsius, the electric push rod 10 is activated to push the top cover 2 upward. The height of the top cover 2's rise is equal to the longitudinal opening length of a single second through slot 14 or third through slot 16. Preferably, the longitudinal opening lengths of the second through slot 14 and the third through slot 16 are the same. Since the distance between two adjacent third through slots 16 is greater than twice the longitudinal opening length of a single third through slot 16, when the initial misalignment of the second through slot 14 and the third through slot 16 is large, such as when the misalignment is greater than the longitudinal opening length of two second through slots 14, it can satisfy the requirement that the second through slot 14 and the third through slot 16 are in harmony. The slots 16 remain staggered, which is why the distance between two adjacent third through slots 16 is greater than twice the height of a single third through slot 16. The height is the longitudinal opening length. Initially, to ensure that the second through slots 14 and the third through slots 16 are staggered, the distance between two adjacent second through slots 14 needs to occupy at least one height. However, even when the height of the upward movement of the top cover 2 is equal to the longitudinal opening length of a single second through slot 14, it is still necessary to ensure that the second through slots 14 and the third through slots 16 are staggered and sealed. Therefore, the distance between two adjacent second through slots 14 needs to be at least twice the height of a single second through slot 14.

[0049] After the top cover 2 raises the longitudinal opening length of a single second through slot 14 or third through slot 16, the second through slot 14 and third through slot 16 remain misaligned. Simultaneously, the top cover 2 no longer blocks the second heat dissipation mesh 11. Since the size of the second heat dissipation mesh 11 is larger than the size of the first heat dissipation mesh 7, a large amount of outside air can simultaneously enter the low-voltage switch control cabinet 1 from both the second heat dissipation mesh 11 and the first heat dissipation mesh 7 after the fan module 21 speed is increased, further accelerating airflow and enhancing the heat dissipation effect. In other words, during the heat dissipation stage, the second through slot 14 and third through slot 16 remain in a staggered and closed state by controlling the lifting stroke of the electric push rod 10, and do not participate in heat dissipation.

[0050] Preferably, since the first heat dissipation mesh plate 7 and the second heat dissipation mesh plate 11 are located at the center of the top of the low-voltage switch control cabinet 1, and the first through groove 13 is located at the bottom of the side wall of the low-voltage switch control cabinet 1, the airflow from outside enters the low-voltage switch control cabinet 1 through the first heat dissipation mesh plate 7 or the second heat dissipation mesh plate 11 and flows from top to bottom. In addition, the mesh size of the filter screen inside the second heat dissipation mesh plate 11 and the first heat dissipation mesh plate 7 is smaller than that of the partition mesh 8, which facilitates the discharge of dust inside the low-voltage switch control cabinet 1. That is, when the mesh size of the filter screen inside the second heat dissipation mesh plate 11 and the first heat dissipation mesh plate 7 is smaller than that of the partition mesh 8, the preferred direction of the air duct is to intake air from the second heat dissipation mesh plate 11 and the first heat dissipation mesh plate 7 and exhaust air from the partition mesh 8. However, this embodiment does not limit the direction of the air duct or the mesh size of the second heat dissipation mesh plate 11, the first heat dissipation mesh plate 7 and the partition mesh 8, but only provides a preferred solution.

[0051] Furthermore, the electric push rod 10 is activated to push the top cover 2 upward, aligning the second through slot 14 with the third through slot 16. At this point, the first through slot 13 and the fourth through slot 22 are partially or completely offset, thus ensuring the airflow of the multiple third through slots 16. At this time, the fan module 21 starts in reverse, blowing air into the low-voltage switch control cabinet 1 through the partition 8, the connecting port 20, the conductive cavity 19, the inner shell arm 9, and the multiple second through slots 14 and third through slots 16. Since the multiple second through slots 14 and third through slots 16 are vertically and equally spaced, they can blow dust from different heights inside the low-voltage switch control cabinet 1, blowing the dust on the surface of the components inside the low-voltage switch control cabinet 1 out through the second heat dissipation mesh plate 11.

[0052] Example 2:

[0053] This embodiment, based on Embodiment 1, provides a control method for a multi-functional low-voltage switch control cabinet. Specifically, it is an automated dust removal method for a multi-functional low-voltage switch control cabinet. It should be noted that the dust blowing structure and the corresponding automated dust removal method for the multi-functional low-voltage switch control cabinet described in this embodiment are only applicable to low-voltage switch control cabinets and not to high-voltage distribution cabinets. The dust blowing principle of this method is roughly as follows: multiple longitudinally distributed second through slots 14 combined with two peak power fan modules 21 form two horizontal and then upward arc-shaped dust blowing airflows inside the low-voltage switch control cabinet 1. Therefore, the interiors of multiple low-voltage switch control cabinets need to be connected and cannot be isolated, otherwise the corresponding air duct cannot be formed. However, isolation plates must be installed between multiple high-voltage distribution cabinets. Therefore, this method is not applicable to high-voltage distribution cabinets and is only applicable to internally connected low-voltage switch control cabinets. Since their interiors contain low-voltage components such as low-voltage switches and controllers, the isolation requirements are not high, and they can be directly connected, thus facilitating the formation of corresponding dust discharge air ducts inside.

[0054] Secondly, it should be noted that this method can only remove most of the lightly adhered dust, such as newly adhered dust. It still cannot remove stubbornly adhered dust. However, since the dust blowing structure of this device is highly automated and the dust cleaning process does not interrupt the power, the accumulation rate of dust in the low-voltage switch control cabinet can be greatly slowed down by frequent and regular dust blowing.

[0055] The method includes:

[0056] In response to the cleaning command sent periodically by the central control panel, the current monitoring value of the first temperature sensor 15 is obtained. When all monitoring values ​​are between 35℃ and 46℃, the top cover 2 is pushed up by the electric push rod 10, so that the inner shell arm 9 is raised to the second height. At this time, the second through slot 14 and the third through slot 16 are still misaligned, the fourth through slot 22 and the first through slot 13 are in a connected state, and the top cover 2 no longer blocks the second heat dissipation mesh plate 11.

[0057] There are three modes for heat dissipation of the low-voltage switch control cabinet 1. The first heat dissipation mode is passive heat dissipation of the first heat dissipation mesh plate 7. At this time, the temperature monitored by the first temperature sensor 15 is less than 35°C.

[0058] The second heat dissipation mode is to actively exhaust air by adding a low-power fan module 21 to the first heat dissipation mesh plate 7. At this time, the temperature monitored by the first temperature sensor 15 is greater than 35°C and less than 46°C.

[0059] The third heat dissipation mode involves the first heat dissipation mesh 7, the second heat dissipation mesh 11, and a medium-power fan module 21 for exhaust operation.

[0060] Increase the exhaust power of fan module 21 to medium power mode, thereby increasing the air intake of the second heat dissipation mesh 11 and the first heat dissipation mesh 7. When the monitoring value of the first temperature sensor 15 drops to 25°C, stop fan module 21 and send a disassembly prompt command so that the operator can manually disassemble the first heat dissipation mesh 7. After disassembly is completed, click the continue button on the control panel 12.

[0061] It should be noted that a timer will start after fan module 21 is stopped, and will continue until a command to continue is received. The specific interval during this period, i.e., the manual disassembly operation time for the operator, is dynamically adjusted based on the previous heat dissipation situation. The specific principle is as follows:

[0062] from Figure 3 It can be seen that the first temperature sensor 15 is located near the second heat dissipation mesh 11 or the first heat dissipation mesh 7. In the first heat dissipation mode, since it does not involve active heat dissipation, the hot air inside the low-voltage switch control cabinet 1 rises from bottom to top, causing the temperature monitored by the first temperature sensor 15 in the first heat dissipation mode to be the temperature of the high-temperature zone inside the low-voltage switch control cabinet 1, which has strong reference significance. However, in the second and third heat dissipation modes, since the second heat dissipation mesh 11 or the first heat dissipation mesh 7 is an air inlet, it will affect the first temperature sensor 15, resulting in a lower monitored temperature value. That is, the monitored value of the first temperature sensor 15 will be distorted in this mode. Therefore, the heat generated by the components represented by the monitoring value of the first temperature sensor 15 in the second heat dissipation mode is completely different from the heat generated by the components represented by the monitoring value of the first temperature sensor 15 in the second heat dissipation mode. They are not two linearly related parameters. Therefore, when the dust cleaning operation is started in the second heat dissipation mode, it means that the components in the low-voltage switch control cabinet 1 have a large amount of heat generated. Therefore, after the fan module 21 is turned off, the disassembly and assembly of the first heat dissipation mesh plate 7 need to be completed as soon as possible. At this time, the preset disassembly and assembly time limit needs to be reduced. The preset disassembly and assembly time limit is set based on the first heat dissipation mode, in which the components in the low-voltage switch control cabinet 1 have a small amount of heat generated and the time is relatively generous.

[0063] The above explains that in the second heat dissipation mode, the preset disassembly and assembly time needs to be shortened. The reduction is based on the current heat generation of the components. However, in the second and third heat dissipation modes, the heat generation of the components cannot be determined by the changes in the monitoring value of the first temperature sensor 15 because its distortion is quite serious, especially when switching to the third heat dissipation mode, the distortion is extremely large. Therefore, in this embodiment, two second temperature sensors 18 are set on both sides of the top cover 2. Because in the third heat dissipation mode, the dissipated heat will be discharged through the conductive cavity 19, the heat generation of the components in the low-voltage switch control cabinet 1 during the cooling period can be indirectly reflected by monitoring the temperature fluctuation of the two second temperature sensors 18 from the time the third heat dissipation mode is turned on to the time when the temperature drops to the target temperature, and the product of the corresponding time. Then, the corresponding disassembly and assembly time correction parameters can be obtained through a limited number of experiments. The specific implementation method is as follows:

[0064] The temperature fluctuation curves of the two second temperature sensors 18 are retrieved from the time the exhaust power of the fan module 21 is adjusted to medium power mode until the monitoring value of the first temperature sensor 15 drops to 25°C. The area value corresponding to each segment of the temperature fluctuation curve is calculated, and the two area values ​​are summed to obtain the estimated heat dissipation. Based on the estimated heat dissipation, the corresponding disassembly and assembly time correction coefficient is found in the operation transmission lookup table, and the current disassembly and assembly time is recalibrated based on the disassembly and assembly time correction coefficient.

[0065] The disassembly and assembly time is not only the current disassembly time, but also the time for subsequent installation.

[0066] At this time, the top cover 2 is pushed up by the electric push rod 10, so that the inner shell arm 9 is raised to the third height. At this time, the multiple second through slots 14 are aligned with the multiple third through slots 16.

[0067] The fan module 21 is started at maximum power in a forward-reverse cycle to create a forward and reverse circulating airflow inside the low-voltage switch control cabinet 1. It should be noted that this forward-reverse cycle is not continuous, but rather a cycle of forward for a period of time followed by a short pause and then a reverse cycle for a period of time. The forward cycle is longer than the reverse cycle, meaning that dust is mainly discharged through the first heat dissipation mesh 7, rather than through the mesh 8. The circulating forward and reverse airflow has a good cleaning effect on some large areas of stubborn dust.

[0068] The forward airflow is the airflow that enters the low-voltage switch control cabinet 1 through the third channel 16 and the second channel 14 in sequence, and is discharged from the second heat dissipation mesh 11. The reverse airflow is the airflow that enters the low-voltage switch control cabinet 1 through the second heat dissipation mesh 11 and is discharged through the second channel 14 and the third channel 16 in sequence.

[0069] Stop fan module 21 and send a plate installation prompt command so that the operator can manually install the first heat dissipation mesh 7. After installation, click the continue button on control panel 12.

[0070] The electric push rod 10 is retracted to lower the inner shell arm 9 to the second height, and the fan module 21 is activated to perform exhaust cooling. The temperature value inside the low-voltage switch control cabinet 1 is obtained through the first temperature sensor 15, and the corresponding cooling mode is configured based on the temperature value inside the low-voltage switch control cabinet 1.

[0071] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

[0072] It should be noted that this invention encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this invention. To provide the public with a thorough understanding of this invention, specific details are described in detail in the preferred embodiments; however, those skilled in the art will fully understand the invention even without these details. Furthermore, to avoid unnecessary confusion regarding the essence of this invention, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0073] 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 principle 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 control method of a multifunction low voltage switchgear control cabinet, characterized in that, The utility model provides a low -voltage switch control cabinet, including low -voltage switch control cabinet (1), the top of low -voltage switch control cabinet (1) front end face is equipped with first heat dissipation net board (7), and the top of low -voltage switch control cabinet (1) is provided with top cover (2), and the bottom of low -voltage switch control cabinet (1) side wall is equipped with first through slot (13), and the side wall of low -voltage switch control cabinet (1) is sealed and is equipped with shell arm (4), and shell arm (4) cover is equipped on first through slot (13), and the top of shell arm (4) is vertically movable and is equipped with inner shell arm (9), and the bottom of inner shell arm (9) is equipped with fourth through slot (22), and the inner space of inner shell arm (9) and low -voltage switch control cabinet (1) is communicated through first through slot (13) and fourth through slot (22);The top of low -voltage switch control cabinet (1) is equipped with second heat dissipation net board (11), and the size of second heat dissipation net board (11) is greater than the size of first heat dissipation net board (7), and the top of low -voltage switch control cabinet (1) is movably provided with top cover (2), and the top of low -voltage switch control cabinet (1) is provided with the drive piece for driving the lifting of top cover (2), and the drive piece drives top cover (2) to drop and block second heat dissipation net board (11), and the top cover (2) is equipped with suction mechanism for generating suction in the inner shell arm (9), and the top of the inner cavity of low -voltage switch control cabinet (1) is equipped with first temperature sensor (15), and the top of low -voltage switch control cabinet (1) is equipped with dynamic push rod (10), and the side of inner shell arm (9) towards low -voltage switch control cabinet (1) is equipped with a plurality of third through slots (16), and a plurality of third through slots (16) are vertically and equidistantly distributed;The position of the side wall of low -voltage switch control cabinet (1) is equipped with a plurality of second through slots (14) above first through slot (13), and a plurality of second through slots (14) are vertically and equidistantly distributed, and the low -voltage switch control cabinet (1) is also equipped with control panel (12), and the top of top cover (2) is provided with exhaust box (3), and the suction mechanism is fan module (21) installed in the inside of exhaust box (3), and a plurality of second temperature sensors (18) are installed on the top cover (2), and the first heat dissipation net board (7) is detachable, and the method comprises: In response to the ash removal instruction sent by the center console periodically, the monitoring values of the plurality of first temperature sensors (15) are obtained, and in the case that all monitoring values are 35-46 DEG C, the top cover (2) is lifted by the electric push rod (10) to rise, so that the inner shell arm (9) is lifted to the second height, at this time, the second through slot (14) and the third through slot (16) are still misaligned, the fourth through slot (22) and the first through slot (13) are in communication, and the top cover (2) no longer blocks the second heat dissipation net board (11); Increase the air extraction power of the fan module (21), thereby increasing the air intake of the second heat dissipation mesh plate (11) and the first heat dissipation mesh plate (7), and when the monitoring value of the first temperature sensor (15) drops to 25°C, stop the fan module (21) and send a disassembly prompt instruction to enable the operator to manually disassemble the first heat dissipation mesh plate (7), and after disassembly is completed, click the continue execution button on the control panel (12); Continue to push the top cover (2) upward by the electric push rod (10) to lift the inner shell arm (9) to a third height, at this time a plurality of second through grooves (14) are aligned with a plurality of third through grooves (16), and at this time the fourth through groove (22) is completely offset from the first through groove (13); Start the fan module (21) in a maximum power forward-reverse cycle interval to form a forward + reverse circulating air flow in the low-voltage switch control cabinet (1); Wherein, the forward air flow is the air flow that enters the low-voltage switch control cabinet (1) through the third through groove (16) and the second through groove (14) in turn, and is discharged from the second heat dissipation mesh plate (11), and the reverse air flow is the air flow that enters the low-voltage switch control cabinet (1) through the second heat dissipation mesh plate (11) and is then discharged through the second through groove (14) and the third through groove (16) in turn; Stop the fan module (21) and send an installation prompt instruction to enable the operator to manually install the first heat dissipation mesh plate (7), and after installation is completed, click the continue execution button on the control panel (12); Retract the electric push rod (10) to lower the inner shell arm (9) to the second height, and start the fan module (21) to perform air extraction and heat dissipation, and obtain the temperature value in the low-voltage switch control cabinet (1) through the first temperature sensor (15), and configure the corresponding heat dissipation mode based on the temperature value in the low-voltage switch control cabinet (1); Wherein, the air extraction power of the fan module (21) is adjusted to a medium power mode until the monitoring value of the first temperature sensor (15) drops to 25°C, the temperature fluctuation curves of the two second temperature sensors (18) during this period are calculated, the area values corresponding to each temperature fluctuation curve are calculated, the two area values are summed, and the heat dissipation estimate value is obtained, and based on the heat dissipation estimate value, find the corresponding disassembly duration correction coefficient in the operating parameter reference table, and recalibrate the current disassembly duration based on the disassembly duration correction coefficient.

2. The control method of the multifunctional low-voltage switch control cabinet according to claim 1, characterized in that: The shell arm (4) is provided in pairs, and the pair of shell arms (4) are distributed on the two side walls of the low-voltage switch control cabinet (1), the bottom of the two side walls corresponding to the low-voltage switch control cabinet (1) and the shell arm (4) are provided with a first through groove (13), and the first heat dissipation mesh plate (7) is located at the center of the front end face of the low-voltage switch control cabinet (1).

3. The control method of the multifunctional low voltage switchgear control cabinet according to claim 1, characterized in that: The top cover (2) has a through cavity (19) inside, the inner shell arm (9) top end is fixedly connected with the top cover (2), and the inner shell arm (9) top end is communicated with the through cavity (19), the top cover (2) upper surface is provided with a communication port (20) in the middle, the top cover (2) top is provided with an exhaust box (3), the exhaust box (3) is covered on the communication port (20), the exhaust box (3) opposite two side walls are provided with a screen (8), a fan module (21) is assembled at the position between the communication port (20) and the screen (8), the side of the exhaust box (3) assembled with the screen (8) is provided as an inclined surface inclined downward, the first heat dissipation mesh plate (7) and the second heat dissipation mesh plate (11) are both provided with a filter screen, and the mesh of the filter screen is smaller than the mesh of the screen (8).

4. The control method of the multifunctional low voltage switchgear control cabinet according to claim 1, characterized in that: The driving member is an electric push rod (10) installed at the top end of the low-voltage switch control cabinet body (1), the fixed end of the electric push rod (10) extends into the low-voltage switch control cabinet body (1) and is fixed, and the telescopic end of the electric push rod (10) is vertically upwardly connected with the top cover (2), the low-voltage switch control cabinet body (1) is provided with a groove at the position where the electric push rod (10) is installed, for accommodating the connecting seat of the electric push rod (10) and the top cover (2).

5. The control method of the multifunctional low voltage switchgear control cabinet according to claim 1, characterized in that: The second through groove (14) and the third through groove (16) are same in size, number and spacing, the spacing between two adjacent third through grooves (16) is greater than twice the height of a single third through groove (16), and the spacing between two adjacent second through grooves (14) is greater than twice the height of a single second through groove (14).

6. The control method of the multifunctional low voltage switchgear control cabinet according to claim 1, characterized in that: The low-voltage switch control cabinet body (1) is fixed with a support (5) at the top of the front end face, a camera (6) is installed on the support (5), a plurality of first temperature sensors (15) are uniformly installed on the low-voltage switch control cabinet body (1), and the control panel (12) is in control connection with the first temperature sensor (15), the second temperature sensor (18) and the camera (6).

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