A temperature and humidity controlled low voltage switchgear for photovoltaic panels and method

Abstract

The application discloses a temperature and humidity controlled low-voltage switch cabinet of a photovoltaic panel and a method, and belongs to the technical field of electrical equipment, and comprises a cabinet body, a plurality of first ventilation holes, each of which is arranged on the top of the outer wall of the cabinet body, a plurality of second ventilation holes, each of which is arranged on the side of the outer wall of the cabinet body close to the bottom edge, and two groups of filtering mechanisms. The temperature and humidity controlled low-voltage switch cabinet of the photovoltaic panel and the method can dynamically adjust the filter mesh aperture, the ventilation angle and the temperature and humidity control strategy according to different dust, humidity and load conditions through the filtering mechanism and the temperature and humidity control mechanism, effectively solve the problems that the heat dissipation, dust prevention and dehumidification effects of the traditional switch cabinet are poor in different environments, and improve the adaptability of the switch cabinet to complex environments. Through the multi-stage filter screen switching and the adjustable outflow angle fan design, in combination with a liquid cooling system, the heat dissipation mode can be flexibly adjusted according to actual conditions.

Description

Technical Field

[0001] This invention belongs to the field of electrical equipment technology, specifically a low-voltage switchgear and method for temperature and humidity controlled photovoltaic panels. Background Technology

[0002] Low-voltage switchgear is a type of power distribution equipment used in power systems. Its main function is to manage, control, and protect electrical equipment in power systems, ensuring the safe and reliable distribution of power. It is widely used in various buildings, power facilities, and industrial sites. According to its structure and application, low-voltage switchgear can be divided into three main types: fixed type, drawer type, and box type.

[0003] In photovoltaic applications, low-voltage switchgear serves as a crucial power distribution and control device, and the stability and reliability of its operating environment are of paramount importance. However, existing low-voltage switchgear faces numerous challenges when confronted with complex and ever-changing environmental conditions. On one hand, it is difficult to effectively control the temperature and humidity inside the cabinet. High temperatures accelerate the aging of electrical components, reducing their lifespan, while high humidity environments can easily cause electrical components to become damp, leading to faults such as short circuits, which severely affect the normal operation of the photovoltaic system. On the other hand, existing low-voltage switchgear ventilation systems lack effective filtration and cleaning mechanisms, allowing dust and other impurities to easily enter the cabinet and adhere to the surfaces of electrical components, further affecting their heat dissipation and insulation performance. Summary of the Invention

[0004] The purpose of this invention is to dynamically adjust the filter pore size, ventilation angle, and temperature and humidity control strategy according to different dust, humidity, and load conditions through a filtration mechanism and a temperature and humidity control mechanism. This effectively solves the problem of poor heat dissipation, dust prevention, and dehumidification in traditional switchgear under different environments, improving the switchgear's adaptability to complex environments. Through multi-stage filter switching and an adjustable air outlet fan design, combined with a liquid cooling system, the heat dissipation method can be flexibly adjusted according to actual conditions, ensuring that the equipment operates within a safe temperature range even under high load, thus improving heat dissipation efficiency. Through real-time monitoring by a humidity sensor and intelligent control of the heating element, the humidity inside the cabinet can be quickly and effectively reduced, avoiding problems such as condensation, short circuits, and corrosion caused by high humidity, and ensuring the safe and stable operation of the equipment.

[0005] The technical solution adopted in this invention is as follows: A low-voltage switchgear for temperature and humidity controlled photovoltaic panels, comprising: Cabinet; The first ventilation hole is provided in multiple ways, and each of the first ventilation holes is opened on the top of the outer wall of the cabinet; There are multiple second ventilation holes, each of which is located on one side of the outer wall of the cabinet near the bottom edge. The filter mechanism is provided in two sets, and each set of the filter mechanism is located on the inner wall of the cabinet; The temperature and humidity control mechanism is located inside the cabinet.

[0006] Each of the aforementioned filtration mechanisms includes a mounting frame, a mounting component, a filter belt, a first filter belt, a second filter belt, a third filter belt, and a cleaning component. The mounting frame is fixedly installed on the inner wall of the cabinet, the mounting component is located within the mounting frame, the filter belt is mounted on the mounting component, and the first, second, and third filter belts are all fixedly embedded in the inner wall of the filter belt. The cleaning component is located within the mounting frame.

[0007] Each set of mounting components includes two mounting shafts, a tensioning member, and a rotating assembly. Each mounting shaft is rotatably embedded in the inner wall of the mounting frame. The tensioning member is mounted on the inner wall of the mounting frame. The rotating assembly is located on the mounting shaft. Both ends of the filter belt are fixedly mounted on the outer wall of the mounting shaft.

[0008] Each set of rotating components includes two toothed pulleys, a synchronous toothed belt, and a forward and reverse motor. Each toothed pulley is fixedly sleeved on the outer wall of the mounting shaft. The synchronous toothed belt meshes with each toothed pulley. The forward and reverse motor is bolted to one side of the inner wall of the mounting frame. One of the mounting shafts is fixedly located at the output end of the forward and reverse motor.

[0009] Each set of cleaning components includes a rotating shaft, a brush cylinder, two drive wheels, a drive belt, and a collection frame. The rotating shaft is rotatably embedded in the inner wall of the mounting frame, and the brush cylinder is movably sleeved on the outer wall of the rotating shaft. One of the drive wheels is fixedly sleeved on the outer wall of one of the mounting shafts, and the other drive wheel is fixedly sleeved on the outer wall of the rotating shaft. Each drive wheel is driven by a drive belt. The collection frame is installed at the bottom of the outer wall of the mounting frame, and the interior of the collection frame is connected to the interior of the mounting frame.

[0010] The temperature and humidity control mechanism includes multiple temperature sensors, multiple humidity sensors, a liquid cooling system, a dehumidification component, and a cooling component. Each temperature sensor is installed around the inner wall of the cabinet, each humidity sensor is installed around the inner wall of the cabinet, the cooling component is located inside the cabinet, the dehumidification component is located inside the cabinet, and the liquid cooling system is installed on the inner wall of the cabinet.

[0011] The dehumidification component includes a placement frame, a heating element, and multiple connecting holes. The placement frame is installed on the inner wall of the cabinet, the heating element is installed inside the placement frame, and each connecting hole is opened on the inner wall of the placement frame.

[0012] The cooling component includes a mounting frame, multiple fans, and a guide assembly. The mounting frame is fixedly installed on the inner wall of the cabinet, each fan is installed on the inner wall of the mounting frame, and the guide assembly is located on the mounting frame.

[0013] The guiding assembly includes a cylinder, a rack, multiple guide plates, and multiple spur gears. The cylinder is installed on one side of the inner wall of the fixed frame, the rack is fixedly set at the output end of the cylinder, each guide plate is rotatably embedded in the inner wall of the fixed frame, each spur gear is fixedly sleeved on the outer wall of the guide plate, and each spur gear meshes with the rack.

[0014] A method for a low-voltage switchgear with temperature and humidity controlled photovoltaic panels includes the following steps: Step 1: Environmental monitoring: Temperature and humidity data at different locations inside the cabinet are monitored in real time by temperature and humidity sensors installed around the inner walls of the cabinet, and the data is transmitted to the control system. Step Two: Filter Switching: The control system controls the rotation of the forward and reverse motors based on the monitored dust concentration, humidity, and equipment load. Through the transmission of toothed pulleys and synchronous toothed belts, the mounting shaft rotates, realizing the winding and unfolding of the filter belt and switching to the appropriate first, second, and third filter belts. When the cabinet is in a high-dust environment, it switches to the first filter belt with the smallest pore size to enhance dust prevention. When the cabinet is in a low-dust environment, it switches to the third filter belt with the largest pore size to improve heat dissipation efficiency. When the cabinet is in a medium-dust environment, it switches to the second filter belt to balance dust prevention and heat dissipation needs. At the same time, depending on the humidity, in a high-humidity environment, the first filter belt can be switched to work with the temperature and humidity control mechanism to reduce moisture entry. In a low-humidity environment, the third filter belt can be switched to accelerate the expulsion of moisture from the cabinet. Depending on the equipment load, in a high-load scenario, the third filter belt is switched to increase ventilation, and in a low-load scenario, the first filter belt is switched to reduce airflow. Step 3: Dust Cleaning: During filter belt switching and operation, when the mounting shaft rotates, the transmission wheel and transmission belt drive the rotating shaft to rotate, causing the brush cylinder to rotate and clean the dust on the filter belt. The dust enters the collection frame for collection. Step 4: Temperature Control: When the temperature sensor detects that the temperature inside the cabinet is too high, the control system first starts the fan to accelerate the airflow inside the cabinet and remove heat. At the same time, based on the detection results of the temperature sensors at different locations, the cylinder pushes the rack to move, which drives the sprocket and guide vanes to rotate, dynamically adjusting the fan's air outlet angle so that the cool air is evenly distributed inside the cabinet. If the temperature still exceeds the set value and the fan's heat dissipation effect is not good, the control system starts the liquid cooling system, which uses circulating coolant to remove heat from inside the cabinet and achieve rapid cooling. Step 5: Humidity control: When the humidity sensor detects that the humidity inside the cabinet exceeds the set value, the control system activates the heating element. The heat generated by the heating element raises the air temperature inside the cabinet and lowers the relative humidity. External air passing through the connecting hole can heat the air entering the cabinet, reduce the air humidity, and accelerate the dehumidification efficiency.

[0015] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: (1) In this invention, the filter mechanism and the temperature and humidity control mechanism can dynamically adjust the filter mesh size, ventilation angle and temperature and humidity control strategy according to different dust, humidity and load conditions, effectively solving the problem of poor heat dissipation, dust prevention and dehumidification effect of traditional switch cabinets in different environments, and improving the adaptability of switch cabinets to complex environments.

[0016] (2) In this invention, by using a multi-stage filter switching and an adjustable air outlet fan design, combined with a liquid cooling system, the heat dissipation method can be flexibly adjusted according to the actual situation, ensuring that the equipment can operate within a safe temperature range even under high load, thus improving heat dissipation efficiency.

[0017] (3) In this invention, the humidity inside the cabinet can be reduced quickly and effectively by real-time monitoring by a humidity sensor and intelligent control of the heating element, avoiding problems such as condensation, short circuit and corrosion caused by high humidity, and ensuring the safe and stable operation of the equipment. Attached Figure Description

[0018] Figure 1 This is a perspective view of the present invention; Figure 2 This is a rear sectional view of the present invention; Figure 3 This is a partial structural schematic diagram of the present invention; Figure 4 This is a cross-sectional view of the placement frame of the present invention; Figure 5 This is a cross-sectional view of the fixing frame of the present invention; Figure 6 This is a schematic diagram of the filter mechanism of the present invention; Figure 7 This is a schematic diagram of the mounting frame of the present invention; Figure 8 This is a schematic diagram of the filter mechanism located at the top of the cabinet in this invention: Figure 9 This is a schematic diagram showing the unfolded filter belt of the present invention; Figure 10 For the present invention Figure 5 Enlarged view of point A; Figure 11 For the present invention Figure 6 Enlarged view of point B; Figure 12 For the present invention Figure 7 Enlarged diagram of point C.

[0019] The diagram shows the following components: 1. Cabinet; 2. First ventilation hole; 3. Second ventilation hole; 4. Filter mechanism; 401. Mounting frame; 402. Filter belt; 403. First filter belt; 404. Mounting shaft; 405. Tensioner; 406. Toothed pulley; 407. Synchronous toothed belt; 408. Forward and reverse motor; 409. Rotating shaft; 410. Brush cylinder; 411. Drive wheel; 412. Drive belt; 413. Collection frame; 414. Second filter belt; 415. Third filter belt; 5. Temperature and humidity control mechanism; 501. Temperature sensor; 502. Humidity sensor; 503. Placement frame; 504. Heating element; 505. Connecting hole; 506. Liquid cooling system; 507. Fixing frame; 508. Fan; 509. Cylinder; 510. Rack; 511. Guide plate; 512. Circular gear. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0021] Example 1, refer to Figure 1-12 A low-voltage switchgear for temperature and humidity controlled photovoltaic panels, comprising: Cabinet 1; Multiple first ventilation holes 2 are provided, and each first ventilation hole 2 is opened on the top of the outer wall of the cabinet 1; There are multiple second ventilation holes 3, and each second ventilation hole 3 is opened on one side of the outer wall of the cabinet 1 near the bottom edge; The filter mechanism 4 is provided in two sets, and each set of filter mechanism 4 is located on the inner wall of the cabinet 1. Temperature and humidity control mechanism 5 is located inside cabinet 1.

[0022] In this implementation plan: Cabinet 1 is the main structure of the entire switch cabinet, providing space for equipment installation and operation. A control system is installed inside cabinet 1 to control the filtration mechanism 4 and the temperature and humidity control mechanism 5. The first ventilation hole 2 is used to exhaust hot air inside the cabinet and promote air circulation. The second ventilation hole 3 is used to introduce fresh air from outside to refresh the air inside the cabinet. The filtration mechanism 4 is used to filter the air entering cabinet 1 to prevent dust or other impurities from entering cabinet 1 and affecting the normal operation of the equipment. The temperature and humidity control mechanism 5 is used to precisely control the temperature and humidity inside the cabinet.

[0023] Specifically, each filter mechanism 4 includes a mounting frame 401, a mounting component, a filter belt 402, a first filter belt 403, a second filter belt 414, a third filter belt 415, and a cleaning component. The mounting frame 401 is fixedly installed on the inner wall of the cabinet 1, the mounting component is located inside the mounting frame 401, the filter belt 402 is installed on the mounting component, the first filter belt 403, the second filter belt 414, and the third filter belt 415 are all fixedly embedded in the inner wall of the filter belt 402, and the cleaning component is located inside the mounting frame 401.

[0024] In this implementation scheme: the mounting frame 401 provides a foundation for the installation and cleaning components. The mounting components are used to install and support the filter belt 402, and to enable the winding and unwinding of the filter belt 402. This allows for switching between the first filter belt 403, the second filter belt 414, and the third filter belt 415 according to actual cooling requirements. This can meet different cooling and dehumidification needs based on the environment of the cabinet 1. The top outer wall of each of the first filter belt 403, the second filter belt 414, and the third filter belt 415 has multiple holes, with the diameter of each hole increasing sequentially. By switching between the first filter band 403, the second filter band 414, and the third filter band 415, the contradiction between heat dissipation and dust prevention in different environments can be resolved. A dust concentration detection device is installed outside the cabinet 1. When the cabinet 1 is in a high-dust environment, it switches to the first filter band 403 with the smallest pore size to enhance dust prevention, reduce dust entering the cabinet 1, and protect the equipment from contamination. When the cabinet 1 is in a low-dust environment, it switches to the third filter band 415 with the largest pore size to reduce airflow resistance, improve heat dissipation efficiency, and meet the heat dissipation requirements of high-load equipment. In moderately dusty environments, switching to the second filter strip 414 balances dust prevention and heat dissipation needs, and can also adapt to dehumidification requirements under different humidity conditions. This avoids the inability of a fixed-pore-size filter to dynamically adjust humidity control. In high-humidity environments, cabinet 1 is prone to condensation inside, potentially causing short circuits or corrosion. When cabinet 1 is in a high-humidity environment, switching to the first filter strip 403, in conjunction with the internal temperature and humidity control mechanism 5, reduces moisture ingress. Simultaneously, the small pore size slows down moisture diffusion, giving the temperature and humidity control mechanism 5 more time. When cabinet 1 is in a low-humidity environment... The switchable third filter belt 415 accelerates air circulation and quickly removes moisture from the cabinet. It can also dynamically match changes in equipment load to avoid significant differences in heat generation due to changes in equipment load over time. Fixed-aperture filters cannot adjust their heat dissipation efficiency according to the load. In high-load scenarios, switching the third filter belt 415 increases ventilation and ensures that the equipment operates within a safe temperature range. In low-load scenarios, switching the first filter belt 403 reduces unnecessary airflow, lowers energy consumption, and reduces dust accumulation. A cleaning component is used to clean dust from the filter belt 402.

[0025] Specifically, each set of mounting components includes two mounting shafts 404, a tensioning element 405, and a rotating assembly. Each mounting shaft 404 is rotatably embedded in the inner wall of the mounting frame 401, the tensioning element 405 is mounted on the inner wall of the mounting frame 401, the rotating assembly is located on the mounting shaft 404, and both ends of the filter belt 402 are fixedly mounted on the outer wall of the mounting shaft 404.

[0026] In this embodiment: the mounting shaft 404 is used to install and place the filter belt 402, and the tensioning member 405 is used to tension the filter belt 402 to ensure its smooth operation. The structure of the tensioning member 405 is prior art and will not be described here. The tensioning member 405 and one of the mounting shafts 404 are located on the same horizontal line, and the rotating assembly is used to drive the two mounting shafts 404 to rotate synchronously.

[0027] Specifically, each rotating assembly includes two toothed pulleys 406, a synchronous toothed belt 407, and a forward and reverse motor 408. Each toothed pulley 406 is fixedly sleeved on the outer wall of the mounting shaft 404. The synchronous toothed belt 407 meshes with each toothed pulley 406. The forward and reverse motor 408 is bolted to one side of the inner wall of the mounting frame 401. One of the mounting shafts 404 is fixedly located at the output end of the forward and reverse motor 408.

[0028] In this implementation scheme: when the forward and reverse motors 408 are energized, they drive one of the mounting shafts 404 to rotate. Through the meshing transmission between the two toothed pulleys 406 and the synchronous toothed belt 407, the other mounting shaft 404 can be driven to rotate, realizing the winding and unfolding of the filter belt 402. The first filter belt 403, the second filter belt 414 and the third filter belt 415 can be flexibly switched, thereby dynamically adjusting the filter pore size according to conditions such as dust, humidity and load, balancing the needs of dust prevention, heat dissipation and dehumidification, improving ventilation efficiency in high load or low dust environments, and strengthening protection capabilities in harsh environments.

[0029] Specifically, each cleaning component includes a rotating shaft 409, a brush cylinder 410, two drive wheels 411, a drive belt 412, and a collection frame 413. The rotating shaft 409 is rotatably embedded in the inner wall of the mounting frame 401, and the brush cylinder 410 is movably sleeved on the outer wall of the rotating shaft 409. One drive wheel 411 is fixedly sleeved on the outer wall of one of the mounting shafts 404, and the other drive wheel 411 is fixedly sleeved on the outer wall of the rotating shaft 409. Each drive wheel 411 is driven by the drive belt 412. The collection frame 413 is installed at the bottom of the outer wall of the mounting frame 401, and the interior of the collection frame 413 is connected to the interior of the mounting frame 401.

[0030] In this implementation scheme: when the mounting shaft 404 rotates, the transmission wheel 411 and the transmission belt 412 drive the rotating shaft 409 to rotate, which in turn causes the brush cylinder 410 to rotate. Its bristles directly scrape the surface of the filter belt 402, removing the attached dust, preventing the filter holes from clogging, maintaining ventilation efficiency, and the dust will enter the collection frame 413 to collect the cleaned dust. This prevents the filter belt 402 from accumulating dust, fibers and other particles on its surface after long-term use, which would clog the holes on the first filter belt 403, the second filter belt 414 and the third filter belt 415, significantly increasing airflow resistance, resulting in reduced ventilation inside the cabinet 1 and insufficient heat dissipation of the equipment.

[0031] Specifically, the temperature and humidity control mechanism 5 includes multiple temperature sensors 501, multiple humidity sensors 502, a liquid cooling system 506, a dehumidification component, and a cooling component. Each temperature sensor 501 is installed around the inner wall of the cabinet 1, each humidity sensor 502 is installed around the inner wall of the cabinet 1, the cooling component is located inside the cabinet 1, the dehumidification component is located inside the cabinet 1, and the liquid cooling system 506 is installed on the inner wall of the cabinet 1.

[0032] In this implementation scheme: temperature sensor 501 and humidity sensor 502 are used to monitor the temperature and humidity data at different locations inside the cabinet in real time and transmit the data to the control system. When temperature sensor 501 detects that the temperature inside the cabinet exceeds the set value and the heat dissipation effect of fan 508 is not good, the control system starts the liquid cooling system 506, which removes heat from the cabinet by circulating coolant to achieve rapid cooling. The dehumidification component raises the air temperature inside the cabinet and lowers the relative humidity. The cooling component accelerates the air circulation inside the cabinet 1, improves the dehumidification or cooling efficiency, and protects the electrical components inside the cabinet 1.

[0033] Specifically, the dehumidification component includes a placement frame 503, a heating element 504, and multiple connecting holes 505. The placement frame 503 is installed on the inner wall of the cabinet 1, the heating element 504 is installed inside the placement frame 503, and each connecting hole 505 is opened on the inner wall of the placement frame 503.

[0034] In this implementation scheme: when the humidity sensor 502 detects that the humidity inside the cabinet 1 exceeds the set value, the control system activates the heating element 504. The heat generated by the heating element 504 raises the air temperature inside the cabinet and lowers the relative humidity. At the same time, the air entering the cabinet 1 is heated through the connecting hole 505 to reduce the air humidity and accelerate the dehumidification efficiency. The placement frame 503 is made of thermally conductive material. The heating element 504 can be set as needed, such as a resistance wire. The liquid cooling system 506 and the heating element 504 are both existing technologies and will not be described here.

[0035] Specifically, the cooling components include a mounting bracket 507, multiple fans 508, and a guide assembly. The mounting bracket 507 is fixedly installed on the inner wall of the cabinet 1, each fan 508 is installed on the inner wall of the mounting bracket 507, and the guide assembly is located on the mounting bracket 507.

[0036] In this implementation scheme: when the temperature sensor 501 detects that the temperature inside the cabinet 1 is too high, the fan 508 works to accelerate the airflow inside the cabinet 1 and remove heat. Through the guide component, the airflow direction can be adjusted.

[0037] Specifically, the guide assembly includes a cylinder 509, a rack 510, multiple guide plates 511, and multiple spur gears 512. The cylinder 509 is installed on one side of the inner wall of the fixed frame 507. The rack 510 is fixedly installed at the output end of the cylinder 509. Each guide plate 511 is rotatably embedded in the inner wall of the fixed frame 507. Each spur gear 512 is fixedly sleeved on the outer wall of the guide plate 511. Each spur gear 512 meshes with the rack 510.

[0038] In this implementation scheme: the cylinder 509 drives the rack 510 to move, which in turn drives the spur gear 512 and guide plate 511 to rotate, dynamically adjusting the air outlet angle of the fan 508, such as changing from vertical blowing to oblique sweeping, so that the cold air is evenly distributed in the cabinet 1, improving the cooling effect and preventing the cooling airflow of the fixed fan 508 from easily concentrating in a specific area of ​​the cabinet 1, which would cause the equipment to overheat and fail to cool down quickly, affecting the cooling efficiency. The temperature sensor 501, fan 508, cylinder 509 and forward and reverse motor 408 are powered by an external power source and should be electrically connected to the external power source. The internal circuit principle and structure are common knowledge to those skilled in the art and will not be described in detail here. The model can be selected according to the actual use.

[0039] During use, Step 1: Environmental Monitoring: Temperature sensors 501 and humidity sensors 502 installed around the inner walls of cabinet 1 monitor temperature and humidity data at different locations within the cabinet in real time and transmit the data to the control system. Step 2: Filter Switching: Based on the monitored dust concentration, humidity, and equipment load, the control system controls the forward and reverse motors 408 to rotate. Through the toothed pulleys 406 and synchronous toothed belts 407, the mounting shaft 404 rotates, achieving the winding and unwinding of the filter belt 402, switching to the appropriate first filter belt 403, second filter belt 414, and third filter belt 415. When cabinet 1 is in a high-dust environment, the filter belt is switched off. The system switches to the first filter strip 403 with the smallest pore size to enhance dust prevention. When cabinet 1 is in a low-dust environment, it switches to the third filter strip 415 with the largest pore size to improve heat dissipation efficiency. When cabinet 1 is in a medium-dust environment, it switches to the second filter strip 414 to balance dust prevention and heat dissipation needs. Simultaneously, depending on humidity levels, in high-humidity environments, the first filter strip 403 can be switched to work with the temperature and humidity control mechanism 5 to reduce moisture ingress; in low-humidity environments, the third filter strip 415 can be switched to accelerate the removal of moisture from the cabinet. Depending on the equipment load, in high-load scenarios, the third filter strip 415 is switched to increase ventilation; in low-load scenarios, the first filter strip 403 is switched to reduce airflow. Step 3: Dust Cleaning: During the switching and operation of the filter belt 402, when the mounting shaft 404 rotates, the transmission wheel 411 and the transmission belt 412 drive the rotating shaft 409 to rotate, causing the brush cylinder 410 to rotate and clean the dust on the filter belt 402. The dust enters the collection frame 413 for collection. Step 4: Temperature Control: When the temperature sensor 501 detects that the temperature inside the cabinet is too high, the control system first starts the fan 508 to accelerate the airflow inside the cabinet 1 and remove heat. At the same time, according to the detection results of the temperature sensors 501 at different locations, the cylinder 509 pushes the rack 510 to move, driving the spur gear 512 and the guide plate. 511 rotates, which can dynamically adjust the air outlet angle of fan 508 to make the cold air evenly distributed in cabinet 1. If the temperature still exceeds the set value and the heat dissipation effect of fan 508 is not good, the control system starts the liquid cooling system 506, which removes the heat in cabinet 1 through circulating coolant to achieve rapid cooling. Step 5: Humidity control: When the humidity sensor 502 detects that the humidity in cabinet 1 exceeds the set value, the control system starts the heating element 504. The heat generated by the heating element 504 raises the air temperature in cabinet 1 and lowers the relative humidity. External air passes through the connecting hole 505, which can heat the air entering cabinet 1, reduce the air humidity, and accelerate the dehumidification efficiency.

[0040] The above are merely preferred embodiments of the present invention and are 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.

Claims

1. A low-voltage switchgear with temperature and humidity controlled photovoltaic panels, characterized in that, include: Cabinet (1); The first ventilation hole (2) is provided in multiple ways, and each first ventilation hole (2) is opened on the top of the outer wall of the cabinet (1); The second ventilation hole (3) is provided in multiple places, and each second ventilation hole (3) is opened on one side of the outer wall of the cabinet (1) near the bottom edge; The filter mechanism (4) is provided in two sets, and each set of the filter mechanism (4) is located on the inner wall of the cabinet (1); Temperature and humidity control mechanism (5) is located inside cabinet (1).

2. The low-voltage switchgear with temperature and humidity controlled photovoltaic panels as described in claim 1, characterized in that: Each of the filter mechanisms (4) includes a mounting frame (401), a mounting component, a filter belt (402), a first filter belt (403), a second filter belt (414), a third filter belt (415), and a cleaning component. The mounting frame (401) is fixedly installed on the inner wall of the cabinet (1). The mounting component is located inside the mounting frame (401). The filter belt (402) is located on the mounting component. The first filter belt (403), the second filter belt (414), and the third filter belt (415) are all fixedly embedded in the inner wall of the filter belt (402). The cleaning component is located inside the mounting frame (401).

3. The low-voltage switchgear with temperature and humidity controlled photovoltaic panels as described in claim 2, characterized in that: Each set of mounting components includes two mounting shafts (404), a tensioning member (405), and a rotating assembly. Each mounting shaft (404) is rotatably embedded in the inner wall of the mounting frame (401). The tensioning member (405) is mounted on the inner wall of the mounting frame (401). The rotating assembly is located on the mounting shaft (404). Both ends of the filter belt (402) are fixedly mounted on the outer wall of the mounting shaft (404).

4. A low-voltage switchgear with temperature and humidity controlled photovoltaic panels as described in claim 3, characterized in that: Each set of rotating components includes two toothed pulleys (406), a synchronous toothed belt (407), and a forward and reverse motor (408). Each toothed pulley (406) is fixedly sleeved on the outer wall of the mounting shaft (404). The synchronous toothed belt (407) meshes with each toothed pulley (406). The forward and reverse motor (408) is bolted to one side of the inner wall of the mounting frame (401). One of the mounting shafts (404) is fixedly set at the output end of the forward and reverse motor (408).

5. A low-voltage switchgear with temperature and humidity controlled photovoltaic panels as described in claim 4, characterized in that: Each set of cleaning components includes a rotating shaft (409), a brush cylinder (410), two drive wheels (411), a drive belt (412), and a collection frame (413). The rotating shaft (409) is rotatably embedded in the inner wall of the mounting frame (401). The brush cylinder (410) is movably sleeved on the outer wall of the rotating shaft (409). One of the drive wheels (411) is fixedly sleeved on the outer wall of one of the mounting shafts (404), and the other drive wheel (411) is fixedly sleeved on the outer wall of the rotating shaft (409). Each drive wheel (411) is driven by the drive belt (412). The collection frame (413) is installed on the bottom of the outer wall of the mounting frame (401), and the interior of the collection frame (413) is connected to the interior of the mounting frame (401).

6. The low-voltage switchgear with temperature and humidity controlled photovoltaic panels as described in claim 5, characterized in that: The temperature and humidity control mechanism (5) includes multiple temperature sensors (501), multiple humidity sensors (502), a liquid cooling system (506), a dehumidification component, and a cooling component. Each temperature sensor (501) is installed around the inner wall of the cabinet (1), and each humidity sensor (502) is installed around the inner wall of the cabinet (1). The cooling component is located inside the cabinet (1), the dehumidification component is located inside the cabinet (1), and the liquid cooling system (506) is installed on the inner wall of the cabinet (1).

7. A low-voltage switchgear with temperature and humidity controlled photovoltaic panels as described in claim 6, characterized in that: The dehumidification component includes a placement frame (503), a heating element (504), and multiple connecting holes (505). The placement frame (503) is installed on the inner wall of the cabinet (1), the heating element (504) is installed inside the placement frame (503), and each connecting hole (505) is opened on the inner wall of the placement frame (503).

8. A low-voltage switchgear with temperature and humidity controlled photovoltaic panels as described in claim 7, characterized in that: The cooling component includes a mounting bracket (507), multiple fans (508), and a guide assembly. The mounting bracket (507) is fixedly installed on the inner wall of the cabinet (1). Each fan (508) is installed on the inner wall of the mounting bracket (507). The guide assembly is located on the mounting bracket (507).

9. A low-voltage switchgear with temperature and humidity controlled photovoltaic panels as described in claim 8, characterized in that: The guiding assembly includes a cylinder (509), a rack (510), multiple guide plates (511), and multiple spur gears (512). The cylinder (509) is installed on one side of the inner wall of the fixed frame (507). The rack (510) is fixedly disposed at the output end of the cylinder (509). Each guide plate (511) is rotatably embedded in the inner wall of the fixed frame (507). Each spur gear (512) is fixedly sleeved on the outer wall of the guide plate (511). Each spur gear (512) meshes with the rack (510).

10. A method for a low-voltage switchgear with temperature and humidity controlled photovoltaic panels, characterized in that, The method of applying a low-voltage switchgear to a temperature and humidity controlled photovoltaic panel as described in any one of claims 1-9 includes the following steps: S1: Environmental monitoring: Temperature and humidity data at different locations inside the cabinet are monitored in real time by temperature sensors (501) and humidity sensors (502) installed around the inner wall of the cabinet (1), and the data is transmitted to the control system. S2: Filter Switching: The control system controls the forward and reverse motors (408) to rotate based on the monitored dust concentration, humidity, and equipment load. Through the transmission of the toothed pulley (406) and synchronous toothed belt (407), the mounting shaft (404) is driven to rotate, thereby realizing the winding and unwinding of the filter belt (402) and switching to the appropriate first filter belt (403), second filter belt (414), and third filter belt (415). When the cabinet (1) is in a high dust environment, it switches to the first filter belt (403) with the smallest pore size to enhance the dustproof function. When the cabinet (1) is in a low dust environment, it switches to the first filter belt (403) with the smallest pore size to enhance the dustproof function. When the cabinet (1) is in a medium dust environment, switch to the third filter belt (415) with the largest aperture to improve heat dissipation efficiency. When the cabinet (1) is in a medium dust environment, switch to the second filter belt (414) to balance dust prevention and heat dissipation requirements. At the same time, depending on the humidity, the first filter belt (403) can be switched in high humidity environment to work with the temperature and humidity control mechanism (5) to reduce moisture entry. The third filter belt (415) can be switched in low humidity environment to accelerate the discharge of moisture in the cabinet. Depending on the equipment load, the third filter belt (415) can be switched in high load scenario to increase ventilation volume, and the first filter belt (403) can be switched in low load scenario to reduce air flow. S3: Dust cleaning: During the switching and operation of the filter belt (402), when the mounting shaft (404) rotates, the drive wheel (411) and the drive belt (412) drive the rotating shaft (409) to rotate, so that the brush cylinder (410) rotates to clean the dust on the filter belt (402), and the dust enters the collection frame (413) for collection; S4: Temperature control: When the temperature sensor (501) detects that the temperature inside the cabinet is too high, the control system first starts the fan (508) to accelerate the air flow inside the cabinet (1) and remove the heat. At the same time, according to the detection results of the temperature sensors (501) at different locations, the cylinder (509) pushes the rack (510) to move, which drives the spur gear (512) and guide plate (511) to rotate. The air outlet angle of the fan (508) can be dynamically adjusted so that the cold air is evenly distributed inside the cabinet (1). If the temperature still exceeds the set value and the heat dissipation effect of the fan (508) is not good, the control system starts the liquid cooling system (506) to remove the heat inside the cabinet (1) through circulating coolant and achieve rapid cooling. S5: Humidity control: When the humidity sensor detects (502) that the humidity inside the cabinet (1) exceeds the set value, the control system starts the heating element (504). The heat generated by the heating element (504) raises the air temperature inside the cabinet (1) and lowers the relative humidity. External air passes through the connecting hole (505) and can heat the air entering the cabinet (1), reduce the air humidity, and accelerate the dehumidification efficiency.

Images