A moisture-proof switch cabinet

Abstract

The utility model discloses a kind of damp-proof switch cabinets, cabinet is divided into drying chamber and component chamber by partition, drying chamber is equipped with multiple drying sheets, partition is equipped with intercommunication gap, component chamber side wall is equipped with exhaust fan, drying chamber side wall is equipped with air inlet slot and adjusting mechanism.Adjusting mechanism is composed of lifting plate, boss and adjusting screw rod, screw rod is connected with lifting plate and operating knob, lifting plate has adjusting slot.The switch cabinet is formed by drying sheet water absorption, exhaust fan active exhaust dry air circulation, adjusting mechanism can adjust air inlet slot opening as needed, reduce energy consumption when humidity is low, strengthen ventilation drying when humidity is high, significantly improve the damp-proof performance of electrical components, prolong service life, flexible adaptation different scene, and strong practicality.

Description

Technical Field

[0001] This utility model relates to the field of switch cabinet technology, specifically a moisture-proof switch cabinet. Background Technology

[0002] In power systems, switchgear, as a key component of power equipment, directly controls the stable operation of the power system. As an important electrical device, switchgear is widely used in power distribution and control. It contains various electrical components such as circuit breakers, disconnectors, and load switches, and the normal operation of these components is directly related to the safety and stability of the power system. However, in actual use, switchgear often faces many challenges due to environmental humidity issues.

[0003] Traditional switchgear typically lacks effective moisture-proofing measures. In humid environments, moisture easily penetrates the cabinet, causing electrical components to become damp. Currently, while some switchgear includes air inlets for air circulation and moisture protection, the opening degree of these inlets is generally not adjustable. This makes it difficult for the switchgear to adjust the air intake according to different ambient humidity levels and usage scenarios: in low-humidity environments, continuous large-volume air intake not only wastes energy but may also introduce dust and other impurities; while in high-humidity environments, a fixed-opening air inlet cannot meet the demand for rapid ventilation and drying, increasing the risk of electrical components becoming damp. This can easily lead to decreased insulation performance, short circuits, and other faults, shortening the lifespan of electrical components and, in severe cases, potentially causing electrical accidents, resulting in significant economic losses and safety hazards. Therefore, there is an urgent need to develop a switchgear that can efficiently prevent moisture and flexibly adjust the opening degree of the air inlets. Utility Model Content

[0004] In view of the shortcomings of the prior art, this utility model provides a moisture-proof switch cabinet.

[0005] The technical solution adopted by this utility model is: a moisture-proof switch cabinet, including a cabinet body, the cabinet body is divided into a drying chamber and a component chamber by a partition plate, the drying chamber is provided with multiple drying plates, the partition plate is provided with a connecting gap for connecting the drying chamber and the component chamber, an exhaust fan is provided on the side wall of the component chamber away from the drying chamber, and air inlets are provided at equal intervals on the side wall of the drying chamber away from the component chamber, and an adjustment mechanism for controlling the opening degree of the air inlets is provided on the air inlets; The adjustment mechanism includes a lifting plate, a boss fixed above the air inlet slot, and a screw threadedly connected to the screw hole of the boss. One end of the screw is rotatably connected to the lifting plate, and the other end is provided with an operating knob. The lifting plate is provided with adjustment slots that are adapted to the air inlet slot at intervals.

[0006] Furthermore, the top of the screw is provided with a "T"-shaped head, and the lifting plate is provided with a "T"-shaped rotating hole that rotatably engages with the "T"-shaped head.

[0007] Furthermore, guide plates are provided at both ends of the boss, and the lifting plate is slidably disposed between the two guide plates.

[0008] Furthermore, the drying sheet is provided with dovetail connecting ends at both ends, and the drying chamber is provided with dovetail connecting grooves on both sides that connect to the dovetail connecting ends.

[0009] Furthermore, a humidity sensor is installed in the drying chamber.

[0010] Furthermore, the drying sheet has a composite structure, comprising a matrix layer, a functional layer, and a protective layer. The matrix layer is a porous ceramic fiber sheet, the functional layer is a montmorillonite / silica gel mixed desiccant that is osmotically attached to the pores of the porous ceramic fiber sheet, and the protective layer covers the upper and lower surfaces of the matrix layer.

[0011] Furthermore, the substrate layer has a thickness of 0.5-2 cm, and the protective layer is a polytetrafluoroethylene microporous membrane with a thickness of 0.2-0.3 mm.

[0012] The beneficial effects of this utility model are: First, the cabinet is divided into a drying chamber and a component chamber by a partition. The multiple drying discs in the drying chamber can effectively absorb moisture from the air, while the connecting gaps on the partition allow the dried air to smoothly enter the component chamber, forming a stable dry air circulation. This provides a continuously dry environment for the component chamber, significantly improving the moisture-proof performance of electrical components, avoiding faults such as reduced insulation performance and short circuits caused by moisture, and effectively extending the service life of electrical components.

[0013] Secondly, the exhaust fan installed on the side wall of the component compartment away from the drying chamber actively draws out the humid air from the component compartment, accelerating airflow and promoting the exchange efficiency of dry and humid air, further enhancing the moisture-proof effect. Compared with traditional passive moisture-proofing methods, active ventilation greatly improves the timeliness and effectiveness of moisture-proofing.

[0014] Furthermore, the air inlet slots on the side wall of the drying chamber, combined with an adjustment mechanism, allow users to precisely control the opening of the air inlets by rotating a screw using a knob, which moves the lifting plate up and down according to the actual ambient humidity and usage needs. In low-humidity environments, the opening of the air inlets can be reduced to lower energy consumption; in high-humidity environments, the opening can be increased to enhance air circulation and drying effects. This flexible adjustment method not only improves the controllability of the moisture-proof effect but also allows this moisture-proof switch cabinet to better adapt to different usage scenarios, demonstrating significant practicality and promotional value.

[0015] In addition to the objectives, features, and advantages described above, this utility model has other objectives, features, and advantages. The utility model will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model.

[0017] Figure 2 This is a schematic diagram of the cross-section at the partition plate.

[0018] Figure 3 This is a schematic diagram of the other side of the present invention.

[0019] Figure 1-3 In the middle: 1. Cabinet; 2. Partition plate; 3. Drying chamber; 4. Component chamber; 5. Drying plate; 6. Connecting gap; 7. Exhaust fan; 8. Air inlet; 9. Lifting plate; 10. Boss; 11. Screw; 12. Operating knob; 13. Adjustment slot; 14. "T" head; 15. "T" rotating hole; 16. Guide plate; 17. Dovetail connector; 18. Dovetail connector groove; 19. Humidity sensor. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0022] This utility model provides a moisture-proof switch cabinet.

[0023] In this embodiment, refer to Figure 1-3 The moisture-proof switch cabinet includes a cabinet body 1. The cabinet body 1 is divided into a drying chamber 3 and a component chamber 4 by a partition plate 2. The drying chamber is provided with multiple drying plates 5. The partition plate is provided with a connecting gap 6 for connecting the drying chamber and the component chamber. An exhaust fan 7 is provided on the side wall of the component chamber away from the drying chamber. Air inlets 8 are provided at equal intervals on the side wall of the drying chamber away from the component chamber. An adjustment mechanism for controlling the opening degree of the air inlets 8 is provided at the air inlets 8. The adjustment mechanism includes a lifting plate 9, a boss 10 fixed above the air inlet slot, and a screw 11 threadedly connected to the screw hole of the boss 10. One end of the screw 11 is rotatably connected to the lifting plate, and the other end is provided with an operation knob 12. The lifting plate is provided with adjustment slots 13 at intervals that are adapted to the air inlet slot.

[0024] In the above technical solution, the cabinet is divided into a drying chamber and a component chamber by a partition. Drying plates in the drying chamber absorb moisture from the incoming air, forming a dry air source. The connecting gaps on the partition serve as airflow channels, working in conjunction with the exhaust fan in the component chamber to create negative pressure, causing dry air to flow from the drying chamber to the component chamber, replacing the humid air and expelling it from the cabinet. Air inlets on the side wall of the drying chamber are used to introduce external air. The adjustment mechanism controls the effective ventilation area of ​​the air inlets by changing the relative position of the lifting plate and the air inlets.

[0025] The above structure effectively reduces the humidity in the component compartment by actively controlling airflow and humidity. The regulating mechanism can flexibly adjust the airflow according to the ambient humidity, avoiding energy waste and dust ingress caused by excessive ventilation, while enhancing ventilation and improving moisture-proof efficiency in high humidity environments.

[0026] Specifically, the top of the screw is provided with a "T"-shaped head 14, and the lifting plate is provided with a "T"-shaped rotating hole 15 that rotatably engages with the "T"-shaped head 14.

[0027] In this embodiment, the "T"-shaped head at the top of the screw engages with the "T"-shaped rotating hole of the lifting plate to form a rotatable but axially non-detachable connection structure.

[0028] Specifically, guide plates 16 are provided at both ends of the boss, and the lifting plate is slidably disposed between the two guide plates 16.

[0029] In this embodiment, guide plates at both ends of the boss are symmetrically arranged to form a guide channel adapted to the width of the lifting plate. The lifting plate slides up and down along the guide plates under the drive of the screw. The guide plates restrict the horizontal displacement of the lifting plate, ensuring that the movement trajectory of the lifting plate is parallel to the screw axis.

[0030] Specifically, the drying sheet is provided with dovetail connecting ends 17 at both ends, and the drying chamber is provided with dovetail connecting grooves 18 on both sides that are connected to the dovetail connecting ends.

[0031] In this embodiment, the dovetail connecting ends at both ends of the drying sheet and the dovetail connecting grooves on both sides of the drying chamber adopt a dovetail groove mating structure. The dovetail connecting ends are trapezoidal, and the dovetail connecting grooves are matching trapezoidal grooves. During installation, the drying sheet is inserted along the axial direction of the dovetail connecting groove. The trapezoidal structure restricts the drying sheet in the direction perpendicular to the insertion direction, preventing it from easily detaching. Moreover, this connection method has good guiding properties, facilitating the installation and removal of the drying sheet, reducing the difficulty and time cost of replacing the drying sheet, and improving maintenance efficiency.

[0032] Specifically, a humidity sensor 19 is installed in the drying chamber.

[0033] In this embodiment, a humidity sensor is installed in the drying chamber to monitor the air humidity in real time and convert the humidity data into an electrical signal output. This signal can be connected to a control system (such as a PLC or microcontroller). The control system automatically controls the start and stop of the exhaust fan and the opening degree of the adjustment mechanism according to a preset humidity threshold, thereby realizing the intelligent operation of the dehumidification system.

[0034] Specifically, the drying sheet has a composite structure, which includes a matrix layer, a functional layer and a protective layer. The matrix layer is a porous ceramic fiber sheet, the functional layer is a montmorillonite / silica gel mixed desiccant that is osmotically attached to the pores of the porous ceramic fiber sheet, and the protective layer covers the upper and lower surfaces of the matrix layer.

[0035] In this embodiment, the drying sheet adopts a composite structure design. The porous ceramic fiber sheet of the matrix layer has a high specific surface area and abundant pore structure, providing a good adhesion carrier for the functional layer. The montmorillonite / silica gel mixed desiccant adheres to the pores of the matrix layer through osmotic pressure. Montmorillonite has strong adsorption and ion exchange capacity, while silica gel has high moisture absorption capacity and regenerability. The synergistic effect of the two improves drying efficiency and service life. A protective layer covers the upper and lower surfaces of the matrix layer to prevent desiccant from falling off and dust from entering, while allowing water molecules to pass through, ensuring the normal functioning of the drying function.

[0036] Specifically, the substrate layer has a thickness of 0.5-2cm, and the protective layer is a polytetrafluoroethylene microporous membrane with a thickness of 0.2-0.3mm.

[0037] In this embodiment, the thickness of the substrate layer is controlled between 0.5-2 cm. This thickness range ensures sufficient mechanical strength while maintaining high porosity and breathability, guaranteeing effective adhesion of the desiccant and rapid diffusion of water molecules. The protective layer uses a polytetrafluoroethylene (PTFE) microporous membrane with a thickness of 0.2-0.3 mm. PTFE material has excellent chemical stability, water resistance, and breathability. Its microporous structure allows water molecules to pass through but prevents dust and liquid from entering, achieving effective protection for both the substrate layer and the functional layer.

[0038] Attention all technical personnel: Although this utility model has been described according to the specific embodiments above, the concept of this utility model is not limited to this utility model. Any modification that utilizes the concept of this utility model will be included within the scope of protection of this patent right.

Claims

1. A moisture-proof switch cabinet, comprising a cabinet body, characterized in that: The cabinet is divided into a drying chamber and a component chamber by a partition. The drying chamber is equipped with multiple drying plates. The partition is provided with a connecting gap to connect the drying chamber and the component chamber. An exhaust fan is provided on the side wall of the component chamber away from the drying chamber. Air inlets are provided at equal intervals on the side wall of the drying chamber away from the component chamber. An adjustment mechanism is provided on the air inlets to control the opening degree of the air inlets. The adjustment mechanism includes a lifting plate, a boss fixed above the air inlet slot, and a screw threadedly connected to the screw hole of the boss. One end of the screw is rotatably connected to the lifting plate, and the other end is provided with an operating knob. The lifting plate is provided with adjustment slots that are adapted to the air inlet slot at intervals.

2. The moisture-proof switchgear according to claim 1, characterized in that: The screw is provided with a "T" shaped head at the top, and the lifting plate is provided with a "T" shaped rotating hole that rotatably engages with the "T" shaped head.

3. The moisture-proof switch cabinet according to claim 1, characterized in that: The boss is provided with guide plates at both ends, and the lifting plate is slidably disposed between the two guide plates.

4. The moisture-proof switch cabinet according to claim 1, characterized in that: The drying sheet has dovetail connecting ends at both ends, and the drying chamber has dovetail connecting grooves on both sides that connect to the dovetail connecting ends.

5. The moisture-proof switch cabinet according to claim 1, characterized in that: A humidity sensor is installed in the drying chamber.

6. The moisture-proof switch cabinet according to claim 1, characterized in that: The drying sheet has a composite structure, comprising a matrix layer, a functional layer, and a protective layer. The matrix layer is a porous ceramic fiber sheet, the functional layer is a montmorillonite / silica gel mixed desiccant that is osmotically attached to the pores of the porous ceramic fiber sheet, and the protective layer covers the upper and lower surfaces of the matrix layer.

7. The moisture-proof switch cabinet according to claim 6, characterized in that: The substrate layer has a thickness of 0.5-2cm, and the protective layer is a polytetrafluoroethylene microporous membrane with a thickness of 0.2-0.3mm.

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