Moisture-proof structure and PLC intelligent control cabinet

Abstract

The utility model provides a kind of moisture-proof structure and PLC intelligent control cabinet, belong to control cabinet technical field.The moisture-proof structure includes cabinet body and moisture-proof part.Cover plate and cabinet body inside constitute an installation cavity, fan is installed in the bottom of cover plate and sends air to cabinet body inside, electric heating tube is located below fan, flow guide channel steel is respectively arranged in the both sides of cabinet body inside, flow guide channel steel bottom end is set through cover plate, flow guide channel steel is close to the side of cabinet body inner wall and is provided with flow guide channel mouth.Electric heating tube heats the air in installation cavity, fan is sent into to the upper chamber in cabinet body inside.Heated air evaporates the water vapor in the inside of cabinet body, relatively hot air rises to the top of flow guide channel steel and is backflowed to the installation cavity below cover plate by flow guide channel mouth and is recycled again.The moisture-proof structure design is simple, can quickly handle the water vapor in the inside of cabinet body, ensure that the PLC and other electrical components in the inside of cabinet body can be stably operated in dry environment.

Description

Technical Field

[0001] This utility model relates to the field of control cabinet technology, and more specifically, to a moisture-proof structure and a PLC intelligent control cabinet. Background Technology

[0002] PLC intelligent control cabinet is one of the core devices in the field of modern industrial automation. It takes programmable logic controller (PLC) as its core and combines various functional modules and intelligent technologies to realize the automated control, monitoring, protection and optimized management of industrial equipment or production processes.

[0003] In areas with frequent rainfall, the electrical components inside the PLC distribution cabinet are easily affected by the humid weather, which can damage the electrical components and, in severe cases, even cause fires. Utility Model Content

[0004] To overcome the above deficiencies, this utility model provides a moisture-proof structure and a PLC intelligent control cabinet, aiming to improve the problem that the electrical components inside the PLC distribution cabinet are easily affected by humid weather, which can lead to damage to the electrical components inside the distribution cabinet.

[0005] This utility model is implemented as follows:

[0006] This utility model provides a moisture-proof structure, including a cabinet and a moisture-proof part.

[0007] The moisture-proof component includes a cover plate, a fan, an electric heating element, and a guide channel steel. The cover plate is fixed inside the cabinet and forms an installation cavity with the cabinet's inner bottom wall and side walls. The fan is installed at the bottom of the cover plate to blow air into the cabinet. The electric heating element is installed on the inner bottom wall of the cabinet below the fan. Two sets of guide channels steel are respectively arranged on both sides inside the cabinet. The bottom end of the guide channels steel penetrates through the cover plate, and a ventilation gap is reserved between the top end of the guide channels steel and the inner top wall of the cabinet. The guide channels steel are provided with guide slots near the inner wall of the cabinet.

[0008] In one embodiment of this utility model, the moisture-proof part further includes a second filter screen, which is disposed at the top of the guide channel.

[0009] The moisture-proof structure also includes a lifting and sealing part, which includes an electric push rod, a bracket and a sealing plate. The cabinet side wall is provided with a ventilation opening, the sealing plate is located inside the ventilation opening, the electric push rod is installed below the cover plate, and the bracket connects the output rod end of the electric push rod and the sealing plate.

[0010] In one embodiment of this utility model, a first filter screen is provided inside the vent.

[0011] In one embodiment of this utility model, the ventilation openings on the outer wall of the cabinet are arranged in multiple sets.

[0012] In one embodiment of this utility model, an exhaust port is provided on the cover plate, and the fan is installed at the bottom of the exhaust port.

[0013] In one embodiment of this utility model, a grid is provided above and below the fan.

[0014] This application also provides a PLC intelligent control cabinet, including the moisture-proof structure described above.

[0015] The beneficial effects of this utility model are as follows: This utility model provides a moisture-proof structure and PLC intelligent control cabinet through the above design. The electric heating element heats the air in the mounting cavity and sends it into the electrical component chamber inside the cabinet via a fan. The hot air evaporates the moisture inside the cabinet, and the warmer air rises to the top of the guide channel steel and flows back through the guide channel opening to the mounting cavity below the cover plate for reuse. This moisture-proof structure has a simple design and can quickly handle the moisture inside the cabinet, ensuring that the PLC and other electrical components inside the cabinet can operate stably in a dry environment. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the moisture-proof structure and PLC intelligent control cabinet provided by the embodiments of this utility model;

[0018] Figure 2 A schematic diagram of the cabinet structure provided for an embodiment of this utility model;

[0019] Figure 3 A schematic diagram of the moisture-proof part and the lifting and sealing part provided for the embodiments of this utility model;

[0020] Figure 4 Provided for the embodiments of this utility model Figure 3 A magnified schematic diagram of part A in the middle section;

[0021] Figure 5 A schematic diagram of the lifting and sealing part provided for an embodiment of this utility model.

[0022] In the diagram: 10 - Cabinet; 110 - Ventilation opening; 120 - First filter; 20 - Moisture-proof part; 210 - Cover plate; 220 - Fan; 230 - Electric heating element; 240 - Guide channel steel; 250 - Guide channel opening; 260 - Second filter; 30 - Lifting and sealing part; 310 - Electric push rod; 320 - Bracket; 330 - Sealing plate. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0024] Example

[0025] Please see Figures 1-5 This utility model provides a moisture-proof structure, including a cabinet 10 and a moisture-proof part 20.

[0026] The moisture-proof part 20 is located inside the cabinet 10. It not only has a simple overall structure, but also plays a good role in moisture prevention, providing better protection for the electrical components inside the PLC control cabinet.

[0027] The moisture-proof component 20 includes a cover plate 210, a fan 220, an electric heating element 230, and a guide channel steel 240. The cover plate 210 is fixed inside the cabinet 10, and the cover plate 210, the bottom wall, and the side wall of the cabinet 10 form an installation cavity. The fan 220 is installed at the bottom of the cover plate 210 to blow air into the cabinet 10. The electric heating element 230 is installed on the bottom wall of the cabinet 10 below the fan 220. Two sets of guide channel steel 240 are respectively set on both sides inside the cabinet 10. The bottom end of the guide channel steel 240 penetrates the cover plate 210, and a ventilation gap is reserved between the top end of the guide channel steel 240 and the top wall of the cabinet 10. The guide channel steel 240 is provided with a guide slot 250 near the inner wall of the cabinet 10.

[0028] The air in the mounting cavity formed between the cover plate 210 and the cabinet 10 is heated by the electric heating element 230. The heated air is then sent into the electrical component chamber inside the cabinet 10 by the fan 220. The hot air evaporates the moisture inside the cabinet 10, and the warmer air rises to the top of the guide channel steel 240 and flows back into the mounting cavity below the cover plate 210 through the guide channel opening 250 for reuse. This moisture-proof structure has a simple design and can quickly remove moisture from inside the cabinet 10, ensuring that the PLC and other electrical components inside the cabinet 10 can operate stably in a dry environment.

[0029] In a specific configuration, the moisture-proof section 20 also includes a second filter 260, which is located at the top of the guide channel 250. The second filter 260 reduces the flow of dust, debris, and other impurities from inside the cabinet 10 into the mounting cavity at the bottom of the cover plate 210.

[0030] The moisture-proof structure also includes a lifting and sealing section 30, which includes an electric push rod 310, a bracket 320, and a sealing plate 330. A ventilation opening 110 is provided on the side wall of the cabinet 10, and the sealing plate 330 is located inside the ventilation opening 110. The electric push rod 310 is installed below the cover plate 210, and the bracket 320 connects the output rod end of the electric push rod 310 and the sealing plate 330.

[0031] When the air outside the cabinet 10 is not humid, the electrical components inside the cabinet 10 can be cooled by the cooperation of the lifting and blocking part 30 and the moisture-proof part 20. During the cooling operation, the electric heating tube 230 stops operating, and the electric push rod 310 drives the blocking plate 330 to move upward through the bracket 320. The blocking plate 330, which was originally blocking part of the vent 110, moves upward, and the cold air outside can enter the installation cavity through the vent 110. The operation of the fan 220 sends the cooler air into the cabinet 10 to cool the electrical components inside the cabinet 10. The hotter air inside the cabinet 10 will flow back from the inner top of the cabinet 10 through the guide slot 250 to the installation cavity below the cover plate 210, and then dissipate outward through the vent 110 on the outside of the cabinet 10.

[0032] Furthermore, a first filter 120 is installed inside the vent 110. The first filter 120 serves to filter dust, preventing external dust and debris from entering the cabinet 10.

[0033] Specifically, the cabinet 10 has multiple ventilation openings 110 on its outer wall. An exhaust vent is located on the cover 210, and a fan 220 is installed at the bottom of the exhaust vent. Grilles are installed above and below the fan 220.

[0034] This application also provides a PLC intelligent control cabinet, including the aforementioned moisture-proof structure, which is adaptable to installation inside control cabinets of various specifications.

[0035] The control cabinet can be equipped with humidity and temperature sensors to control and regulate humidity and temperature by detecting the humidity and temperature inside the cabinet.

[0036] It should be noted that the specific models and specifications of the fan 220, electric heating element 230, and electric actuator 310 need to be selected and determined based on the actual specifications of the device. The specific selection calculation method adopts existing technology in this field, so it will not be described in detail here. The power supply and principle of the fan 220, electric heating element 230, and electric actuator 310 are clear to those skilled in the art, and will not be described in detail here.

[0037] The working principle of this moisture-proof structure and PLC intelligent control cabinet is as follows: During use, the air in the mounting cavity formed between the cover plate 210 and the cabinet 10 is heated by the electric heating tube 230. The heated air is then sent into the electrical component chamber inside the cabinet 10 by the fan 220. The hot air evaporates the moisture inside the cabinet 10, and the warmer air rises to the top of the guide channel steel 240 and flows back to the mounting cavity below the cover plate 210 through the guide channel opening 250 for reuse. This moisture-proof structure has a simple design and can quickly remove moisture from inside the cabinet 10, ensuring that the PLC and other electrical components inside the cabinet 10 can operate stably in a dry environment.

[0038] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A moisture-proof structure, characterized in that, include The cabinet (10) and the moisture-proof part (20) include a cover plate (210), a fan (220), an electric heating element (230), and a guide channel steel (240). The cover plate (210) is fixed inside the cabinet (10). The cover plate (210), the bottom wall and the side wall inside the cabinet (10) form an installation cavity. The fan (220) is installed at the bottom of the cover plate (210) to supply air into the cabinet (10). The heat pipe (230) is installed on the bottom wall inside the cabinet (10) below the fan (220). Two sets of the guide channel steel (240) are respectively set on both sides inside the cabinet (10). The bottom end of the guide channel steel (240) penetrates the cover plate (210), and a ventilation gap is reserved between the top end of the guide channel steel (240) and the top wall inside the cabinet (10). The guide channel steel (240) is provided with a guide slot (250) near the inner wall of the cabinet (10).

2. The moisture-proof structure according to claim 1, characterized in that, The moisture-proof part (20) also includes a second filter (260), which is disposed at the top of the guide channel (250).

3. The moisture-proof structure according to claim 1, characterized in that, It also includes a lifting and blocking part (30), which includes an electric push rod (310), a bracket (320) and a blocking plate (330). The cabinet (10) has a ventilation opening (110) on its side wall. The blocking plate (330) is located inside the ventilation opening (110). The electric push rod (310) is installed below the cover plate (210). The bracket (320) connects the output rod end of the electric push rod (310) and the blocking plate (330).

4. The moisture-proof structure according to claim 3, characterized in that, The vent (110) is equipped with a first filter (120).

5. A moisture-proof structure according to claim 3, characterized in that, The ventilation openings (110) on the outer wall of the cabinet (10) are provided in multiple sets.

6. A moisture-proof structure according to claim 1, characterized in that, The cover plate (210) is provided with an exhaust port, and the fan (220) is installed at the bottom of the exhaust port.

7. A moisture-proof structure according to claim 1, characterized in that, The fan (220) is equipped with a grid above and below it.

8. A PLC intelligent control cabinet, characterized in that, The moisture-proof structure includes any one of claims 1-7.

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