Modularized PLC control cabinet with air-cooling moisture-proof structure

Abstract

The utility model relates to the technical field of PLC control cabinets, and discloses a modularized PLC control cabinet with an air-cooled moisture-proof structure, which comprises a plurality of PLC control modules and a protection assembly used for installing the plurality of PLC control modules, and a heat dissipation mechanism used for cooling the plurality of PLC control modules is arranged at the upper part in the protection assembly. A heating and dehumidifying mechanism used for reducing the air humidity in the protection assembly is arranged at the lower position in the protection assembly, and two reciprocating displacement mechanisms used for controlling the heat dissipation mechanism and the heating and dehumidifying mechanism to horizontally reciprocate are arranged at the upper end and the lower end in the protection assembly. A driving mechanism used for driving the two reciprocating displacement mechanisms to operate synchronously is arranged at the position, close to one side, of the interior of the protection assembly, and the modularized PLC control cabinet of the air-cooling moisture-proof structure solves the problems of high temperature and moisture existing in a traditional PLC control cabinet through cooperative work of various mechanisms; the heat dissipation mechanism ensures that the temperature is maintained in a suitable range through a semiconductor refrigeration block and air flow, and the overheating phenomenon is avoided.

Description

Technical Field

[0001] This utility model relates to the field of PLC control cabinet technology, specifically to a modular PLC control cabinet with an air-cooled and moisture-proof structure. Background Technology

[0002] A modular PLC control cabinet is a type of equipment cabinet used to store PLC modules. By combining the various functional modules of the PLC system (such as input modules, output modules, CPU modules, communication modules, etc.) as needed and neatly installing them in the control cabinet, it provides a solution that is easy to install, maintain, and expand. This type of control cabinet is highly flexible and can add or replace different PLC modules according to production needs, realizing system upgrades and functional expansion. The modular design not only simplifies the wiring and connection of the PLC system, but also improves the reliability and maintainability of the system. It is suitable for various automation control applications, and its compact structure and ease of operation make it suitable for long-term stable operation in industrial environments.

[0003] Traditional modular PLC control cabinets in the prior art typically lack active heat dissipation and dehumidification functions. This leads to problems such as high temperature and humidity in PLC modules after prolonged operation. Because the heat inside the control cabinet cannot be dissipated in a timely and effective manner, the PLC modules and their electronic components are prone to overheating failures due to excessive temperature, which in turn affects the stability and reliability of the system. In high-temperature environments, the aging rate of electronic components is accelerated, which may lead to a decrease in the response speed of the control system, or even system crashes or failures. In addition, the accumulation of moisture also has a negative impact on the PLC modules and their circuits. Humid environments can easily lead to problems such as poor electrical contact and short circuits, and in severe cases, may even cause circuit board corrosion, reducing the service life of the PLC modules. The combined effects of moisture and temperature make it more difficult to ensure the stability of the internal environment of the control cabinet, thereby affecting the reliability and safety of the entire automation control system. PLC systems that are in such an environment for a long time may face a series of problems such as frequent failures, increased maintenance costs, and system downtime, further affecting production efficiency and normal equipment operation. Therefore, those skilled in the art provide a modular PLC control cabinet with an air-cooled and moisture-proof structure to solve the problems mentioned in the background art. Utility Model Content

[0004] The purpose of this invention is to provide a modular PLC control cabinet with an air-cooled and moisture-proof structure, solving the problem that traditional modular PLC control cabinets in the prior art usually lack active heat dissipation and dehumidification functions. This leads to problems such as high temperature and humidity in PLC modules after long-term operation. Because the heat inside the control cabinet cannot be dissipated in a timely and effective manner, the PLC module and other electronic components are prone to overheating failures due to excessive temperature, which in turn affects the stability and reliability of the system. In a high-temperature environment, the aging rate of electronic components is accelerated, which may lead to a decrease in the response speed of the control system, or even system crashes or failures. In addition, the accumulation of moisture will also have a negative impact on the PLC module and its circuits. A humid environment can easily lead to problems such as poor electrical contact and short circuits. In severe cases, it may also cause circuit board corrosion, reducing the service life of the PLC module. The dual effects of moisture and temperature make it more difficult to ensure the stability of the internal environment of the control cabinet, which in turn affects the reliability and safety of the entire automation control system. PLC systems that are in such an environment for a long time may face a series of problems such as frequent failures, increased maintenance costs, and system downtime, further affecting production efficiency and normal equipment operation.

[0005] This utility model provides the following technical solution: a modular PLC control cabinet with an air-cooled and moisture-proof structure, including multiple PLC control modules and a protective component for installing the multiple PLC control modules. The upper part of the protective component is provided with a heat dissipation mechanism for cooling the multiple PLC control modules. The lower part of the protective component is provided with a heating and dehumidification mechanism for reducing the humidity of the air inside the protective component. The upper and lower ends of the protective component are provided with two reciprocating mechanisms for controlling the horizontal reciprocating movement of the heat dissipation mechanism and the heating and dehumidification mechanism. The side of the protective component is provided with a drive mechanism for driving the two reciprocating mechanisms to operate synchronously.

[0006] As a preferred embodiment of the above technical solution, the protective component includes a protective cabinet, with multiple main ventilation slots arranged and extending through both the upper and lower ends of the cabinet. A door is hinged to one side of the protective cabinet, and a control panel is fixedly fitted inside the lower part of the door.

[0007] As a preferred embodiment of the above technical solution, an observation window is fixedly fitted inside the upper part of the cabinet door, a protective cover is fixedly connected to the center of one side of the protective cabinet, and a temperature sensor and a humidity sensor are fixedly connected to the upper and lower ends of the center of the inner wall of the protective cabinet away from the cabinet door, respectively. Multiple PLC control modules are installed in a rectangular filling array on the inner wall of the protective cabinet.

[0008] As a preferred embodiment of the above technical solution, the reciprocating displacement mechanism includes a guide frame, which is fixedly connected to the center of the inner wall of the protective cabinet. Guide grooves are provided at the centers of two adjacent inner walls of the guide frame. A reciprocating screw is rotatably sleeved on both ends of the guide frame via bearings. A reciprocating slider is threadedly sleeved on the outer side of the reciprocating screw. Guide rails are fixedly connected at the centers of the opposite sides of the reciprocating sliders. The two guide rails are slidably sleeved in the two guide grooves. One end of the reciprocating screw passes through the inner wall of the protective cabinet and extends to the outside of the protective cabinet.

[0009] As a preferred embodiment of the above technical solution, the heat dissipation mechanism includes an upper support plate, which is fixedly connected to the lower end of a reciprocating slider at the upper position. Multiple first ventilation slots are arranged and opened through the center of the upper support plate. An upper support frame is fixedly connected to the lower center of the upper support plate near the edge. A first heat pipe is provided inside the upper support frame, and both ends of the first heat pipe penetrate the inner wall of the upper support plate and lead to the outside of the upper support frame.

[0010] As a preferred embodiment of the above technical solution, semiconductor cooling blocks are fixedly sleeved on both ends of the first heat pipe. The semiconductor cooling blocks are fixedly connected to the side of the upper support frame that is close to each other. Multiple first heat dissipation plates are arranged inside the upper support frame. The multiple first heat dissipation plates are arranged and fixedly sleeved on the outside of the first heat pipe. A first air circulation fan is fixedly connected to both sides of the lower end of the upper support frame.

[0011] As a preferred embodiment of the above technical solution, the heating and dehumidification mechanism includes a lower support plate, which is fixedly connected to the upper end of the reciprocating slider at the lower position. Multiple second ventilation slots are arranged and opened through the center of the lower support plate. A lower support frame is fixedly connected to the center of the upper end of the lower support plate near the edge. A second heat pipe is provided inside the lower support frame, and the two ends of the second heat pipe pass through an inner wall of the lower support frame and extend to the outside of the lower support frame.

[0012] As a preferred embodiment of the above technical solution, electric heating modules are fixedly sleeved on both ends of the second heat pipe. The electric heating modules are fixedly connected to the side of the lower support frame that is close to each other. Multiple second heat spreaders are arranged inside the lower support frame. The multiple second heat spreaders are fixedly sleeved on the outside of the second heat pipe. Second air circulation fans are fixedly connected to both sides of the upper end of the lower support frame.

[0013] As a preferred embodiment of the above technical solution, the driving mechanism includes a drive motor, a first transmission wheel, and a second transmission wheel. The drive motor is fixedly connected to the center of an inner wall inside the protective cabinet, and the output end of the drive motor passes through the inner wall of the protective cabinet to the outside of the protective cabinet. The first transmission wheel is fixedly sleeved on the outside of the upper reciprocating screw near the drive motor, and the second transmission wheel is fixedly connected on the outside of the lower reciprocating screw near the drive motor.

[0014] As a preferred embodiment of the above technical solution, a first drive wheel and a second drive wheel are fixedly connected to the outer side of the output end of the drive motor. A first transmission belt is sleeved on the outer side of the first drive wheel and the first transmission wheel, and a second transmission belt is sleeved on the outer side of the second drive wheel and the second transmission wheel.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This modular PLC control cabinet with air-cooled and moisture-proof structure solves the high temperature and humidity problems of traditional PLC control cabinets through the coordinated work of multiple mechanisms. The heat dissipation mechanism ensures that the temperature is maintained within a suitable range through semiconductor cooling blocks and airflow, avoiding overheating.

[0017] The heating and dehumidification mechanism effectively reduces internal humidity through an electric heating module and a moisture emission system, preventing moisture from affecting the PLC control module. The reciprocating mechanism, in coordination with the drive mechanism, precisely controls the periodic operation of heat dissipation and dehumidification, ensuring that the temperature and humidity within the system are effectively regulated. This design improves the reliability and lifespan of the PLC control module, reduces maintenance costs, and increases production efficiency. Attached Figure Description

[0018] Figure 1 A three-dimensional structural diagram of a modular PLC control cabinet with an air-cooled and moisture-proof structure;

[0019] Figure 2 A three-dimensional structural diagram of a modular PLC control cabinet door with an air-cooled and moisture-proof structure;

[0020] Figure 3 A three-dimensional structural diagram of a modular PLC control cabinet drive mechanism with an air-cooled and moisture-proof structure;

[0021] Figure 4 A three-dimensional disassembled structural diagram of the reciprocating mechanism of a modular PLC control cabinet with an air-cooled and moisture-proof structure;

[0022] Figure 5 A three-dimensional disassembled structural diagram of the heat dissipation mechanism of a modular PLC control cabinet with an air-cooled and moisture-proof structure;

[0023] Figure 6 A three-dimensional disassembled structural diagram of the heating and dehumidification mechanism of a modular PLC control cabinet with an air-cooled and moisture-proof structure;

[0024] Figure 7 This is a three-dimensional disassembled structural diagram of the drive mechanism of a modular PLC control cabinet with an air-cooled and moisture-proof structure.

[0025] 1. Protective components; 101. Protective cabinet; 102. Main ventilation slot; 103. Cabinet door; 104. Control panel; 105. Observation window; 106. Protective cover; 107. Temperature sensor; 108. Humidity sensor; 2. Reciprocating mechanism; 201. Guide frame; 202. Guide groove; 203. Reciprocating screw; 204. Reciprocating slider; 205. Guide rail; 3. Heat dissipation mechanism; 301. Upper support plate; 302. First ventilation slot; 303. Upper support frame; 304. First heat pipe; 305. Semiconductor cooling block; 30 6. First heat spreader plate; 307. First air circulation fan; 4. Heating and dehumidification mechanism; 401. Lower support plate; 402. Second ventilation slot; 403. Lower support frame; 404. Second heat pipe; 405. Electric heating module; 406. Second heat spreader plate; 407. Second air circulation fan; 5. Drive mechanism; 501. Drive motor; 502. First transmission wheel; 503. Second transmission wheel; 504. First drive wheel; 505. Second drive wheel; 506. First transmission belt; 507. Second transmission belt; 6. PLC control module. Detailed Implementation

[0026] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0027] Please see Figures 1-3 As shown, this utility model provides a technical solution: a modular PLC control cabinet with an air-cooled and moisture-proof structure, including multiple PLC control modules 6 and a protective component 1 for installing the multiple PLC control modules 6. A heat dissipation mechanism 3 for cooling the multiple PLC control modules 6 is provided at the upper part of the protective component 1. A heating and dehumidification mechanism 4 for reducing the humidity of the air inside the protective component 1 is provided at the lower part of the protective component 1. Two reciprocating reciprocating mechanisms 2 for controlling the horizontal reciprocating movement of the heat dissipation mechanism 3 and the heating and dehumidification mechanism 4 are provided at the upper and lower ends of the protective component 1. A drive mechanism 5 for driving the two reciprocating reciprocating mechanisms 2 to operate synchronously is provided on one side of the protective component 1.

[0028] This modular PLC control cabinet with air-cooled and moisture-proof structure solves the high temperature and humidity problems of traditional PLC control cabinets through the coordinated work of multiple mechanisms. The heat dissipation mechanism 3 ensures that the temperature is maintained within a suitable range through semiconductor cooling block 305 and air flow to avoid overheating. The heating and dehumidification mechanism 4 effectively reduces internal humidity through electric heating module 405 and moisture discharge system to prevent moisture from affecting the PLC control module 6. The reciprocating mechanism 2, in coordination with the drive mechanism 5, precisely controls the periodic operation of heat dissipation and dehumidification to ensure that the temperature and humidity in the system are effectively regulated. This design improves the reliability and service life of the PLC control module 6, reduces maintenance costs, and improves production efficiency.

[0029] As one implementation method in this embodiment, please refer to Figures 2-3 As shown, the protective component 1 includes a protective cabinet 101. Multiple main ventilation slots 102 are arranged and opened through both the upper and lower ends of the interior of the protective cabinet 101. A door 103 is hinged to one side of the protective cabinet 101. A control panel 104 is fixedly installed in the lower part of the interior of the door 103. An observation window 105 is fixedly installed in the upper part of the interior of the door 103. A protective cover 106 is fixedly connected to the center of one side of the protective cabinet 101. A temperature sensor 107 and a humidity sensor 108 are fixedly connected to the upper and lower ends of the center of the inner wall of the protective cabinet 101 away from the door 103, respectively. Multiple PLC control modules 6 are installed in a rectangular array on the inner wall of the protective cabinet 101.

[0030] The protective component 1 is the external structure of this modular PLC control cabinet, responsible for the overall protection of the PLC control module 6. The protective component 1 is designed with heat dissipation and dehumidification functions. By setting temperature sensor 107 and humidity sensor 108, environmental changes inside the cabinet are monitored. The protective component 1 includes multiple main ventilation slots 102 for ventilation to help dissipate heat and ensure the stability of temperature and humidity inside the system. The cabinet door 103 and observation window 105 are designed to facilitate real-time monitoring of the system by operators. The control panel 104 inside the cabinet door 103 further enhances the ease of operation. Through these designs, the protective component 1 can effectively ensure that the PLC control module 6 operates in a stable working environment and avoid the influence of the external environment on the equipment.

[0031] As one implementation method in this embodiment, please refer to Figure 4As shown, taking the reciprocating retraction mechanism 2 at the top as an example, the reciprocating retraction mechanism 2 includes a guide frame 201, which is fixedly connected to the center of the inner wall of the protective cabinet 101. Guide grooves 202 are provided at the centers of the two inner walls of the guide frame 201 that are close to each other. Reciprocating screws 203 are rotatably sleeved on the two ends of the guide frame 201 through bearings. Reciprocating sliders 204 are threaded on the outer side of the reciprocating screws 203. Guide rails 205 are fixedly connected to the centers of the two opposite sides of the reciprocating sliders 204. The two guide rails 205 are slidably sleeved in the two guide grooves 202 respectively. One end of the reciprocating screw 203 passes through the inner wall of the protective cabinet 101 and leads to the outside of the protective cabinet 101.

[0032] The reciprocating mechanism 2 drives the heat dissipation mechanism 3 and the heating and dehumidification mechanism 4 to perform horizontal reciprocating motion, ensuring that these two mechanisms can operate efficiently inside the control cabinet. The reciprocating mechanism 2 moves through the guide frame 201 and the reciprocating screw 203. The reciprocating screw 203 drives the reciprocating slider 204 to move horizontally through an external transmission system. The heat dissipation mechanism 3 and the heating and dehumidification mechanism 4 are connected to the reciprocating slider 204. During the reciprocating motion, these mechanisms can effectively dissipate heat and remove moisture inside the cabinet. Through the precise control of the reciprocating mechanism 2, excessive accumulation or unevenness in the heat dissipation and dehumidification process can be effectively avoided, ensuring the stable operation of the PLC control module 6.

[0033] As one implementation method in this embodiment, please refer to Figure 5 As shown, the heat dissipation mechanism 3 includes an upper support plate 301, which is fixedly connected to the lower end of the reciprocating slider 204 at the upper position. Multiple first ventilation slots 302 are arranged and opened through the center of the upper support plate 301. An upper support frame 303 is fixedly connected to the lower center of the upper support plate 301 near the edge. A first heat pipe 304 is arranged inside the upper support frame 303. The two ends of the first heat pipe 304 pass through the inner wall of the upper support plate 301 and lead to the outside of the upper support frame 303. Semiconductor cooling blocks 305 are fixedly sleeved on the outside of the two ends of the first heat pipe 304. The semiconductor cooling blocks 305 are fixedly connected to the side of the upper support frame 303 that is close to each other. Multiple first heat dissipation plates 306 are arranged inside the upper support frame 303. The multiple first heat dissipation plates 306 are arranged and fixedly sleeved on the outside of the first heat pipe 304. A first air circulation fan 307 is fixedly connected to both sides of the lower end of the upper support frame 303.

[0034] The heat dissipation mechanism 3 is the main cooling device of this unit. It is located inside the upper part of the protective component 1 and is mainly responsible for reducing the working temperature of the PLC control module 6. The heat dissipation mechanism 3 includes an upper support plate 301, which has multiple first ventilation slots 302 inside to accelerate the circulation of hot air. An upper support frame 303 is fixedly connected to the lower end of the upper support plate 301, and a first heat pipe 304 and a semiconductor cooling block 305 are installed through the frame to achieve rapid heat conduction and cooling. The semiconductor cooling block 305 carries away heat through the thermoelectric effect, thereby reducing the temperature inside the cabinet. Multiple first heat spreaders 306 are also installed in the upper support frame 303 to ensure uniform heat distribution and the first air circulation fan 307 helps air flow to enhance the heat dissipation effect.

[0035] As one implementation method in this embodiment, please refer to Figure 6 As shown, the heating and dehumidification mechanism 4 includes a lower support plate 401, which is fixedly connected to the upper end of the reciprocating slider 204 at the lower end. Multiple second ventilation slots 402 are arranged and opened through the center of the lower support plate 401. A lower support frame 403 is fixedly connected to the upper center of the lower support plate 401 near the edge. A second heat pipe 404 is arranged inside the lower support frame 403. The two ends of the second heat pipe 404 pass through one inner wall of the lower support frame 403 and extend to the outside of the lower support frame 403. Electric heating modules 405 are fixedly sleeved on the outside of the two ends of the second heat pipe 404. The electric heating modules 405 are fixedly connected to the side of the lower support frame 403 that is close to each other. Multiple second heat spreaders 406 are arranged inside the lower support frame 403. The multiple second heat spreaders 406 are arranged and fixedly sleeved on the outside of the second heat pipe 404. A second air circulation fan 407 is fixedly connected to both sides of the upper end of the lower support frame 403.

[0036] The heating and dehumidification mechanism 4 is located in the lower part of the protective component 1. Its main function is to reduce the humidity inside the cabinet through heating and air circulation. The heating and dehumidification mechanism 4 includes a lower support plate 401 and a lower support frame 403. A second heat pipe 404 and an electric heating module 405 are installed inside. The second heat pipe 404 conducts heat, and the heating wire built into the electric heating module 405 heats the air to increase the evaporation rate of humidity, thereby achieving effective moisture discharge. The lower support frame 403 is also equipped with multiple second heat spreaders 406 and a second air circulation fan 407 to ensure uniform heating of air and moisture discharge. This system effectively transforms the humid environment into a dry environment suitable for the operation of the PLC control module 6 by heating the air and promoting the flow of hot air.

[0037] As one implementation method in this embodiment, please refer to Figure 7As shown, the drive mechanism 5 includes a drive motor 501, a first transmission wheel 502, and a second transmission wheel 503. The drive motor 501 is fixedly connected to the center of an inner side wall inside the protective cabinet 101, and the output end of the drive motor 501 passes through the inner wall of the protective cabinet 101 and extends to the outside of the protective cabinet 101. The first transmission wheel 502 is fixedly sleeved on the outside of the upper reciprocating screw 203 near the drive motor 501. The second transmission wheel 503 is fixedly connected on the outside of the lower reciprocating screw 203 near the drive motor 501. The first drive wheel 504 and the second drive wheel 505 are fixedly connected to the outer side of the output end of the drive motor 501. The first drive wheel 504 and the first transmission wheel 502 are sleeved with a first transmission belt 506, and the second drive wheel 505 and the second transmission wheel 503 are sleeved with a second transmission belt 507.

[0038] The drive mechanism 5 is used to synchronously control the movement of the reciprocating transfer mechanism 2, ensuring the coordinated operation of the heat dissipation and dehumidification processes. The drive motor 501 drives the reciprocating screw 203 to rotate through the first transmission wheel 502 and the second transmission wheel 503, realizing the horizontal movement of the reciprocating transfer mechanism 2. Through the first transmission belt 506 and the second transmission belt 507, the drive motor 501 can precisely control the speed and force of the movement, thereby ensuring that the heat dissipation mechanism 3 and the heating and dehumidification mechanism 4 operate efficiently according to the predetermined parameters. This transmission system not only ensures the precise control of the equipment, but also improves the operational stability and durability of the system.

[0039] Working Principle: The protective component 1 is the external structure of this modular PLC control cabinet, responsible for the overall protection of the PLC control module 6. The protective component 1 is internally designed with heat dissipation and dehumidification functions. Temperature sensors 107 and humidity sensors 108 are installed to monitor environmental changes within the cabinet. The protective component 1 includes multiple main ventilation slots 102 for ventilation, aiding in heat dissipation and ensuring stable temperature and humidity within the system. The cabinet door 103 and observation window 105 are designed for convenient real-time monitoring by operators. The control panel 104 inside the cabinet door 103 further enhances operational convenience. Through these designs, the protective component 1 effectively ensures that the PLC control module 6 operates in a stable working environment, avoiding... To prevent external environmental influences on the equipment, the reciprocating mechanism 2 drives the heat dissipation mechanism 3 and the heating and dehumidification mechanism 4 to perform horizontal reciprocating motion, ensuring that these two mechanisms can operate efficiently inside the control cabinet. The reciprocating mechanism 2 moves through the guide frame 201 and the reciprocating screw 203. The reciprocating screw 203 drives the reciprocating slider 204 to move horizontally through an external transmission system. The heat dissipation mechanism 3 and the heating and dehumidification mechanism 4 are connected to the reciprocating slider 204. During the reciprocating motion, these mechanisms can effectively dissipate heat and remove moisture inside the cabinet. Through the precise control of the reciprocating mechanism 2, excessive accumulation or unevenness in the heat dissipation and dehumidification process can be effectively avoided, ensuring the stable operation of the PLC control module 6.

[0040] The heat dissipation mechanism 3 is the main cooling device of this unit, located inside and above the protective component 1. It is primarily responsible for reducing the operating temperature of the PLC control module 6. The heat dissipation mechanism 3 includes an upper support plate 301, which has multiple first ventilation slots 302 to accelerate the circulation of hot air. An upper support frame 303 is fixedly connected to the lower end of the upper support plate 301, and a first heat pipe 304 and a semiconductor cooling block 305 are installed through this frame to achieve rapid heat conduction and cooling. The semiconductor cooling block 305 carries away heat through the thermoelectric effect, thereby reducing the temperature inside the cabinet. Multiple first heat spreaders 306 are also installed inside the upper support frame 303 to ensure uniform heat distribution, and a first air circulation fan 307 assists in airflow to enhance the heat dissipation effect. The heating and dehumidification mechanism 4 is located in the lower part of the protective component 1. Its main function is to reduce the humidity inside the cabinet by heating and air circulation. The heating and dehumidification mechanism 4 includes a lower support plate 401 and a lower support frame 403. A second heat pipe 404 and an electric heating module 405 are installed inside. The second heat pipe 404 conducts heat, and the heating wire built into the electric heating module 405 heats the air to increase the evaporation rate of humidity, thereby achieving effective moisture discharge. The lower support frame 403 is also equipped with multiple second heat spreaders 406 and a second air circulation fan 407 to ensure uniform heating of air and moisture discharge. This system effectively transforms the humid environment into a dry environment suitable for the operation of the PLC control module 6 by heating the air and promoting the flow of hot air.

[0041] The drive mechanism 5 is used to synchronously control the movement of the reciprocating transfer mechanism 2, ensuring the coordinated operation of the heat dissipation and dehumidification processes. The drive motor 501 drives the reciprocating screw 203 to rotate through the first transmission wheel 502 and the second transmission wheel 503, realizing the horizontal movement of the reciprocating transfer mechanism 2. Through the first transmission belt 506 and the second transmission belt 507, the drive motor 501 can precisely control the speed and force of the movement, thereby ensuring that the heat dissipation mechanism 3 and the heating and dehumidification mechanism 4 operate efficiently according to the predetermined parameters. This transmission system not only ensures the precise control of the equipment, but also improves the operational stability and durability of the system.

[0042] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. A modular PLC control cabinet with an air-cooled and moisture-proof structure, characterized in that: It includes multiple PLC control modules (6) and a protective component (1) for mounting multiple PLC control modules (6). The upper part of the protective component (1) is provided with a heat dissipation mechanism (3) for cooling down multiple PLC control modules (6). The lower part of the protective component (1) is provided with a heating and dehumidification mechanism (4) for reducing the humidity inside the protective component (1). The upper and lower ends of the protective component (1) are provided with two reciprocating mechanisms (2) for controlling the horizontal reciprocating movement of the heat dissipation mechanism (3) and the heating and dehumidification mechanism (4). The protective component (1) is provided with a drive mechanism (5) for driving the two reciprocating mechanisms (2) to operate synchronously on one side.

2. A modular PLC control cabinet with an air-cooled and moisture-proof structure according to claim 1, characterized in that: The protective component (1) includes a protective cabinet (101). Multiple main ventilation slots (102) are arranged and opened through both the upper and lower ends of the protective cabinet (101). A door (103) is hinged to one side of the protective cabinet (101). A control panel (104) is fixedly fitted inside the lower part of the door (103).

3. A modular PLC control cabinet with an air-cooled and moisture-proof structure according to claim 2, characterized in that: An observation window (105) is fixedly fitted inside the upper part of the cabinet door (103). A protective cover (106) is fixedly connected to the center of one side of the protective cabinet (101). A temperature sensor (107) and a humidity sensor (108) are fixedly connected to the upper and lower ends of the center of the inner wall of the protective cabinet (101) away from the cabinet door (103). Multiple PLC control modules (6) are installed in a rectangular array on the inner wall of the protective cabinet (101).

4. A modular PLC control cabinet with an air-cooled and moisture-proof structure according to claim 2, characterized in that: The reciprocating displacement mechanism (2) includes a guide frame (201), which is fixedly connected to the center of the inner wall of the protective cabinet (101). The guide frame (201) has guide grooves (202) at the centers of two adjacent inner walls. The guide frame (201) has reciprocating screws (203) rotatably sleeved at both ends through bearings. The reciprocating screws (203) have reciprocating sliders (204) threaded on the outer side of the reciprocating sliders (204). The reciprocating sliders (204) have guide rails (205) fixedly connected at the centers of the opposite sides. The two guide rails (205) are slidably sleeved inside the two guide grooves (202). One end of the reciprocating screw (203) penetrates the inner wall of the protective cabinet (101) and extends to the outside of the protective cabinet (101).

5. A modular PLC control cabinet with an air-cooled and moisture-proof structure according to claim 4, characterized in that: The heat dissipation mechanism (3) includes an upper support plate (301), which is fixedly connected to the lower end of the reciprocating slider (204) at the upper position. Multiple first ventilation slots (302) are arranged and opened through the center of the upper support plate (301). An upper support frame (303) is fixedly connected to the lower center of the upper support plate (301) near the edge. A first heat pipe (304) is provided inside the upper support frame (303). The two ends of the first heat pipe (304) penetrate the inner wall of the upper support plate (301) and lead to the outside of the upper support frame (303).

6. A modular PLC control cabinet with an air-cooled and moisture-proof structure according to claim 5, characterized in that: Semiconductor cooling blocks (305) are fixedly sleeved on both ends of the first heat pipe (304). The semiconductor cooling blocks (305) are fixedly connected to the side of the upper support frame (303) that is close to each other. Multiple first heat dissipation plates (306) are arranged inside the upper support frame (303). The multiple first heat dissipation plates (306) are arranged and fixedly sleeved on the outside of the first heat pipe (304). A first air circulation fan (307) is fixedly connected to both sides of the lower end of the upper support frame (303).

7. A modular PLC control cabinet with an air-cooled and moisture-proof structure according to claim 4, characterized in that: The heating and dehumidification mechanism (4) includes a lower support plate (401), which is fixedly connected to the upper end of the reciprocating slider (204) at the lower end. Multiple second ventilation slots (402) are arranged and opened through the center of the lower support plate (401). A lower support frame (403) is fixedly connected to the upper center of the lower support plate (401) near the edge. A second heat pipe (404) is provided inside the lower support frame (403). The two ends of the second heat pipe (404) pass through an inner wall of the lower support frame (403) and lead to the outside of the lower support frame (403).

8. A modular PLC control cabinet with an air-cooled and moisture-proof structure according to claim 7, characterized in that: Electric heating modules (405) are fixedly sleeved on both ends of the second heat pipe (404). The electric heating modules (405) are fixedly connected to the lower support frame (403) on the side close to each other. Multiple second heat spreaders (406) are arranged inside the lower support frame (403). Multiple second heat spreaders (406) are arranged and fixedly sleeved on the outside of the second heat pipe (404). Second air circulation fans (407) are fixedly connected to both sides of the upper end of the lower support frame (403).

9. A modular PLC control cabinet with an air-cooled and moisture-proof structure according to claim 4, characterized in that: The drive mechanism (5) includes a drive motor (501), a first transmission wheel (502) and a second transmission wheel (503). The drive motor (501) is fixedly connected to the center of an inner wall inside the protective cabinet (101), and the output end of the drive motor (501) passes through the inner wall of the protective cabinet (101) and extends to the outside of the protective cabinet (101). The first transmission wheel (502) is fixedly sleeved on the outside of the upper reciprocating screw (203) near the drive motor (501), and the second transmission wheel (503) is fixedly connected on the outside of the lower reciprocating screw (203) near the drive motor (501).

10. A modular PLC control cabinet with an air-cooled and moisture-proof structure according to claim 9, characterized in that: The output end of the drive motor (501) is fixedly connected to a first drive wheel (504) and a second drive wheel (505). The first drive wheel (504) and the first transmission wheel (502) are fitted with a first transmission belt (506), and the second drive wheel (505) and the second transmission wheel (503) are fitted with a second transmission belt (507).

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