Anti-corrosion power distribution cabinet

Abstract

The invention relates to the field of power distribution cabinets, and provides an anti-corrosion power distribution cabinet which comprises a box body, a separator, a moisture absorption assembly and an air induction assembly. The separator divides the interior of the box body into a first chamber, a second chamber and a third chamber, the first chamber is provided with a first opening, and the second chamber is provided with a second opening; the moisture absorption assembly comprises a driving unit, a first moisture absorption breathable layer and a standby layer, and the driving unit is connected with the first moisture absorption breathable layer and the standby layer and used for switching the moisture absorption assembly between a first state and a second state; in the first state, the first moisture absorption breathable layer is located above the first cavity, and the standby layer is located above the second cavity; in the second state, the first moisture absorption breathable layer is located above the second cavity, and the standby layer is located above the first cavity; the air inducing assembly comprises a first air inducing piece and a second air inducing piece. The problem that a conventional power distribution cabinet is poor in anti-corrosion effect is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of power distribution cabinets, in particular to a corrosion-resistant power distribution cabinet. BACKGROUND

[0002] As an important equipment in the power system, power distribution cabinets are widely used in industrial, commercial and civilian fields. Its main function is to realize the distribution and control of electric energy. With the continuous development of the power system, power distribution cabinets play an important role in ensuring the reliability of power supply and improving energy utilization efficiency. Its application in coastal areas is also becoming more and more widespread.

[0003] However, the coastal area belongs to a high-salt and high-humidity environment, and the internal components of the power distribution cabinet are prone to damp corrosion, which leads to a decrease in insulation performance, and further causes short circuits or equipment failures and other problems, which seriously affects the safe operation of the power system. Therefore, how to effectively prevent the internal components of the power distribution cabinet from being damp has become a technical problem to be solved.

[0004] At present, in order to prevent the corrosion of the power distribution cabinet and its internal components, the industry usually uses corrosion-resistant materials to make the cabinet of the power distribution cabinet, and then places a desiccant inside the power distribution cabinet to keep the cabinet dry.

[0005] However, the internal components of the power distribution cabinet will generate heat when working. In order to avoid the internal components being in a high-temperature environment for a long time, the power distribution cabinet usually needs to be ventilated to dissipate heat. However, ventilation will cause salt-containing humid air to enter the internal components of the power distribution cabinet, causing the internal components to rust. Moreover, ventilation will also cause the desiccant to quickly lose its drying effect, further accelerating the rusting of the internal components. SUMMARY

[0006] In order to solve the problem of poor corrosion resistance of conventional power distribution cabinets, the present application provides a corrosion-resistant power distribution cabinet.

[0007] The corrosion-resistant power distribution cabinet provided by the present application adopts the following technical scheme: A corrosion-resistant power distribution cabinet, comprising: a cabinet body provided with a corrosion-resistant coating; a partition provided in the cabinet body and separating the cabinet body into first, second and third chambers which are independent of each other, the first and second chambers being in communication with the third chamber, the first chamber having a first opening and the second chamber having a second opening; a moisture absorption assembly comprising a driving unit, a first moisture absorption and ventilation layer and a backup layer, the first moisture absorption and ventilation layer and the backup layer being parallel to each other and being slidably connected to the cabinet body, the driving unit being connected to the first moisture absorption and ventilation layer and the backup layer respectively and being used to drive the first moisture absorption and ventilation layer and the backup layer to move in opposite directions, so as to switch the moisture absorption assembly between a first state and a second state; In the first state, the first moisture-permeable layer is located above the first chamber, and the standby layer is located above the second chamber. In the second state, the first moisture-permeable layer is located above the second chamber, and the standby layer is located above the first chamber. An air guiding assembly is arranged in the third chamber, and the air guiding assembly includes a first air guiding member and a second air guiding member, the first air guiding member is used to guide the air in the first chamber into the third chamber, and the second air guiding member is used to guide the air in the third chamber into the second chamber.

[0008] By adopting the above technical solution, the anti-corrosion power distribution cabinet can effectively prevent the corrosion of humid air on electrical elements and improve the heat dissipation effect. The specific effects are as follows: The anti-corrosion coating of the cabinet effectively improves the corrosion resistance of the overall structure and prolongs the service life of the power distribution cabinet. The dividing piece divides the inside of the cabinet into three independent chambers, realizes the division of the functional areas, and avoids the interference between different areas. The driving unit drives the first moisture-permeable layer and the standby layer to move in opposite directions, realizes the switching of the first moisture-permeable layer between the humidification state and the dehumidification state, and prolongs the service life of the first moisture-permeable layer. The first air guiding member can guide external air into the third chamber, thereby helping to cool the internal elements. The second air guiding member can guide the internal hot air to the second chamber and discharge it, and the hot air can dehumidify the first moisture-permeable layer when it is discharged, so as to restore the moisture absorption capacity of the first moisture-permeable layer.

[0009] Optionally, the third chamber is located above the first chamber and the second chamber. A third opening is arranged at the top of the third chamber, and a drying piece is arranged at the third opening.

[0010] By adopting the above technical solution, the third chamber is arranged above the first chamber and the second chamber, and the third opening is arranged at the top of the third chamber, so that the internal hot air can be discharged from the third opening. The drying piece can prevent humid hot air from entering the power distribution cabinet and ensure the stable operation of the electrical elements. In addition, the hot air can dehumidify the drying piece when it is discharged through the third opening, so as to restore the drying performance of the drying piece.

[0011] Optionally, the standby layer is a non-permeable layer.

[0012] By adopting the technical scheme, when the moisture absorption assembly of the anticorrosion power distribution cabinet switches between the first state and the second state, since the standby layer is a non-air-permeable layer, in the first state, after the first air guide member guides the air in the first chamber into the third chamber, the hot air in the third chamber is basically discharged from the power distribution cabinet through the third opening, thereby enhancing the dehumidification and back blowing effects of the drying member.

[0013] Optionally, the standby layer is a second moisture absorption and air permeation layer.

[0014] By adopting the technical scheme, the moisture absorption assembly of the anticorrosion power distribution cabinet forms switchable working states between the first moisture absorption and air permeation layer and the standby layer. When the standby layer is a second moisture absorption and air permeation layer, not only can it work cooperatively with the first moisture absorption and air permeation layer to improve the overall moisture absorption efficiency, but also can replace the function of the first moisture absorption and air permeation layer in time when the first moisture absorption and air permeation layer reaches a saturated state, thereby ensuring the continuous drying of the internal environment of the power distribution cabinet. In addition, the arrangement of the second moisture absorption and air permeation layer further enhances the reliability of the moisture absorption assembly, prolongs the maintenance period, and reduces the equipment operation cost.

[0015] Optionally, the first moisture absorption and air permeation layer is located above the standby layer. The standby layer is rotationally connected with a pressing roller, the pressing roller is in abutment with the first moisture absorption and air permeation layer, and is used for extruding the moisture in the first moisture absorption and air permeation layer.

[0016] By adopting the technical scheme, the pressing roller arranged on the standby layer is in abutment with the first moisture absorption and air permeation layer, which can apply pressure to the first moisture absorption and air permeation layer during its movement, effectively extruding the moisture adsorbed therein, and preliminarily dehumidifying the first moisture absorption and air permeation layer, which helps to shorten the subsequent dehumidification time of the first moisture absorption and air permeation layer.

[0017] Optionally, the box body is provided with a drainage channel communicating with the outside; The partition member has a guide portion for guiding the water extruded by the first moisture absorption and air permeation layer to the drainage channel.

[0018] By adopting the technical scheme, the anticorrosion power distribution cabinet can effectively discharge the water extruded by the first moisture absorption and air permeation layer, and avoid the accumulation of water in the box body, which can cause damage to the equipment. The specific effects are as follows: the arrangement of the drainage channel enables the water to flow to the outside smoothly, and the design of the guide portion ensures that the extruded water can be accurately guided into the drainage channel, thereby improving the drying efficiency and reliability of the anticorrosion power distribution cabinet.

[0019] Optionally, the first moisture absorption and air permeation layer comprises an upper air-permeable plate, a lower air-permeable plate, a moisture absorption member, and a guide column. The upper air-permeable plate is parallel to the lower air-permeable plate. The moisture absorption member is arranged between the upper air-permeable plate and the lower air-permeable plate. One end of the guide column is connected with the upper air-permeable plate, and the other end is in sliding connection with the lower air-permeable plate.

[0020] By adopting the technical scheme, the first moisture-absorbing and air-permeable layer is composed of the upper air-permeable plate, the lower air-permeable plate, the moisture-absorbing element and the guide column. The upper air-permeable plate and the lower air-permeable plate are arranged in parallel, the moisture-absorbing element is located between the two, and the guide column is connected with the upper air-permeable plate and in sliding connection with the lower air-permeable plate. The structure design enables the lower air-permeable plate to move relative to the upper air-permeable plate so as to squeeze out the moisture absorbed by the moisture-absorbing element. Meanwhile, through the sliding connection of the guide column, the stability of the moisture-absorbing element during the working process can be effectively maintained, and deformation or displacement of the moisture-absorbing element due to uneven force can be avoided, thereby improving the overall moisture-absorbing efficiency and reliability.

[0021] Optionally, the moisture-absorbing element is multi-layered, the multi-layered moisture-absorbing elements are connected in sequence, the upper air-permeable plate is connected with the closest moisture-absorbing element, and the lower air-permeable plate is connected with the closest moisture-absorbing element. The first moisture-absorbing and air-permeable layer further comprises a spring, the spring is arranged between the upper air-permeable plate and the lower air-permeable plate, and the spring is sleeved on the guide column. The spring is used to drive the lower air-permeable plate away from the upper air-permeable plate, so as to separate the multi-layered moisture-absorbing elements from each other.

[0022] By adopting the technical scheme, the design of the multi-layered moisture-absorbing element can improve the moisture-absorbing effect. The arrangement of the spring can drive the lower air-permeable plate away from the upper air-permeable plate, so as to separate the multi-layered moisture-absorbing elements from each other, effectively avoid the adhesion of the moisture-absorbing element due to long-time use, ensure the smooth air flow, and further improve the moisture-absorbing effect and drying performance.

[0023] Optionally, the driving unit comprises a motor, a first rotating shaft, a second rotating shaft, a gear, a belt, two pulleys and two racks. The motor is in transmission connection with one of the pulleys through the first rotating shaft. The second rotating shaft is in rotation connection with the box body. The gear and the other pulley are both sleeved on the second rotating shaft. The two pulleys are in transmission connection through the belt. One of the racks is arranged on the first moisture-absorbing and air-permeable layer, and the other rack is arranged on the standby layer. The two racks are parallel to each other and opposite to each other. The two racks are both in meshing connection with the gear.

[0024] By adopting the above technical scheme, the motor drives the first rotating shaft to rotate, and then drives one of the two pulleys to rotate, and the synchronous rotation of the two pulleys is realized through the belt drive. Since the gear is fixed on the second rotating shaft, the gear will mesh with the two racks when the second rotating shaft rotates, thereby driving the first moisture absorption and ventilation layer and the standby layer to move in opposite directions, respectively. This design ensures that the moisture absorption assembly can switch between the first state and the second state, effectively improving the working efficiency and reliability of the moisture absorption assembly. At the same time, through the cooperation of the gear and the rack, the accuracy and stability of the movement are ensured, and the control ability of the internal environment of the corrosion-resistant power distribution cabinet is further improved.

[0025] In summary, the present application includes at least one of the following beneficial technical effects: 1. By setting the moisture absorption assembly and the air guiding assembly, the moisture absorption assembly can absorb the moisture in the air entering the power distribution cabinet while the air in the power distribution cabinet is cooled, thereby significantly improving the moisture-proof performance of the power distribution cabinet and effectively preventing short circuit or failure caused by moisture in the components; 2. The first air guiding member can guide the air in the first chamber into the third chamber, thereby helping to cool the internal components; the second air guiding member can use the heat emitted by the internal components to help the first moisture absorption and ventilation layer to dehumidify, thereby allowing the first moisture absorption and ventilation layer to be repeatedly used; 3. When the standby layer is the second moisture absorption and ventilation layer, the first moisture absorption and ventilation layer and the standby layer work alternately, ensuring that one layer is saturated with moisture while the other layer continues to function, without the need to frequently replace the moisture absorption material, thereby reducing maintenance costs and improving the stability of the system. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 is a rear view structural schematic diagram of the moisture absorption assembly of the corrosion-resistant power distribution cabinet provided by the present application in the first state.

[0027] Figure 2 is an enlarged schematic diagram of A in Figure 1

[0028] Figure 3 is a rear view structural schematic diagram of the moisture absorption assembly of the corrosion-resistant power distribution cabinet provided by the present application in the second state.

[0029] Figure 4 is a side view structural schematic diagram of the corrosion-resistant power distribution cabinet provided by the present application.

[0030] Figure 5 is a structural schematic diagram of one embodiment of the first moisture absorption and ventilation layer provided by the present application.

[0031] BRIEF DESCRIPTION OF DRAWINGS: ​1. Box body; 11. Rain shelter; 12. First chamber; 13. Second chamber; 14. Third chamber; 15. Fourth chamber; 16. First opening; 17. Second opening; 18. Third opening; 19. Drainage channel; 2. Separator; 21. Guide section; 3. Moisture-absorbing assembly; 31. Drive unit; 311. Motor; 312. First rotating shaft; 313. Second rotating shaft; 314. Gear; 315. Belt; 316. Pulley; 317. Rack; 32. First moisture-absorbing and breathable layer; 321. Upper breathable plate; 322. Lower breathable plate; 323. Moisture-absorbing component; 324. Guide post; 325. Spring; 33. Spare layer; 34. Squeeze roller; 4. Air intake assembly; 41. First air intake component; 42. Second air intake component; 5. Filter screen; 6. Drying component. Detailed Implementation

[0032] The following is in conjunction with the appendix Figures 1 to 5 This application will be described in further detail.

[0033] like Figures 1 to 4 As shown in the figure, this application discloses a corrosion-resistant power distribution cabinet, including a cabinet 1, a partition 2, a moisture absorption component 3, and an air extraction component 4.

[0034] Specifically, the top of the enclosure 1 is equipped with a rain shelter 11. The enclosure 1 may be made of stainless steel, and its surface is coated with an anti-corrosion coating such as epoxy resin to improve its anti-corrosion performance. The partition 2, the moisture absorption assembly 3, and the air extraction assembly 4 are all located inside the enclosure 1.

[0035] Alternatively, the housing 1 may include an outer layer and an inner layer. The outer layer may be made of high-strength glass fiber reinforced plastic (GRP), which has good corrosion resistance and mechanical properties. The inner layer may be made of cold-rolled steel sheet, and its surface may be coated with a nano-salt spray-resistant coating to form a corrosion barrier. The separator 2, the moisture absorption assembly 3, and the air intake assembly 4 may be located within the inner layer.

[0036] The partition 2 divides the interior of the housing 1 into four independent chambers: a first chamber 12, a second chamber 13, a third chamber 14, and a fourth chamber 15. The fourth chamber 15 is located between the first chamber 12 and the second chamber 13. The third chamber 14 is located above the first chamber 12, the second chamber 13, and the fourth chamber 15, and electronic components are housed within the third chamber 14. Both the first chamber 12 and the second chamber 13 are connected to the third chamber 14. This connection allows for gas flow. This connection can be achieved by creating openings in the partition 2.

[0037] The housing 1 has a first opening 16, a second opening 17, and a third opening 18. The first opening 16 communicates with the first chamber 12; the second opening 17 communicates with the second chamber 13; and the third opening 18 is located at the top of the third chamber 14 and communicates with it. Filters 5 can be installed at the first and second openings 16 and 17 to prevent flying insects and other debris from entering the housing 1. A drying element 6 is installed at the third opening 18 to prevent external moisture from entering the third chamber 14. The drying element 6 can be a breathable drying box containing conventional moisture-absorbing materials such as absorbent cloth.

[0038] The moisture-absorbing assembly 3 includes a drive unit 31, a first moisture-absorbing and breathable layer 32, and a spare layer 33. Both the first moisture-absorbing and breathable layer 32 and the spare layer 33 have a plate-like structure. The first moisture-absorbing and breathable layer 32 and the spare layer 33 are parallel to each other and are slidably connected to the housing 1. The drive unit 31 is connected to the first moisture-absorbing and breathable layer 32 and the spare layer 33 respectively, and is used to drive the first moisture-absorbing and breathable layer 32 and the spare layer 33 to move in opposite directions, so that the moisture-absorbing assembly 3 switches between a first state and a second state.

[0039] like Figures 1 to 2 As shown, in the first state, the first moisture-absorbing and breathable layer 32 is located above the first chamber 12, and the spare layer 33 is located above the second chamber 13.

[0040] like Figure 3 As shown, in the second state, the first moisture-absorbing and breathable layer 32 is located above the second chamber 13, and the spare layer 33 is located above the first chamber 12.

[0041] An air intake assembly 4 is disposed within the third chamber 14. The air intake assembly 4 includes a first air intake element 41 and a second air intake element 42. The first air intake element 41 is disposed directly above the first chamber 12 and is used to guide air from the first chamber 12 into the third chamber 14. The second air intake element 42 is disposed directly above the second chamber 13 and is used to guide air from the third chamber 14 into the second chamber 13. Both the first air intake element 41 and the second air intake element 42 can be fans or blowers.

[0042] The spare layer 33 can be a non-breathable layer, such as a solid board. The spare layer 33 can also be a second moisture-absorbing and breathable layer.

[0043] For example, when the spare layer 33 is a non-permeable layer.

[0044] In the first state, outside air enters the first chamber 12 under the action of the first air intake 41, and cools the electronic components in the third chamber 14 after passing through the first moisture-absorbing and breathable layer 32. The first moisture-absorbing and breathable layer 32 can absorb moisture in the air, preventing the electronic components from being corroded. At this time, because the spare layer 33 prevents the air in the third chamber 14 from entering the second chamber 13, the hot air in the third chamber 14 will be discharged from the third opening 18. The hot air can dehumidify the dryer 6 at the third opening 18, allowing the dryer 6 to perform its moisture-absorbing function for a long time.

[0045] In the second state, the first moisture-absorbing and breathable layer 32 is positioned above the second chamber 13. The second air duct 42 can guide hot air from the third chamber 14 into the second chamber 13 and eventually exhaust it, thus also cooling the electronic components. As the hot air enters the second chamber 13, it passes through the first moisture-absorbing and breathable layer 32, thereby dehumidifying the first moisture-absorbing and breathable layer 32 and restoring its dehumidification capacity.

[0046] When the spare layer 33 is the second moisture-absorbing and breathable layer, at least one of the first air-guiding component 41 and the second air-guiding component 42 operates to cool the electronic components in the third chamber 14. Furthermore, by switching between the first and second states, the first and second moisture-absorbing and breathable layers 32 and 42 switch between moisture-absorbing and dehumidifying states, extending their service life. Moreover, when one of the first and second moisture-absorbing and breathable layers is in the moisture-absorbing process, the other is in the dehumidifying state, thereby continuously preventing moisture from entering the third chamber 14. The second moisture-absorbing and breathable layer can be a hollow plate containing absorbent material such as a moisture-absorbing cloth, with perforations in the plate for ventilation.

[0047] like Figures 1 to 4 As shown, the drive unit 31 includes a motor 311, a first rotating shaft 312, a second rotating shaft 313, a gear 314, a belt 315, two pulleys 316, and two racks 317.

[0048] The motor 311 is located in the fourth chamber 15. The motor 311 is connected to one of the pulleys 316 via a first rotating shaft 312. A second rotating shaft 313 is rotatably connected to the housing 1, and a gear 314 and the other pulley 316 are both mounted on the second rotating shaft 313. The two pulleys 316 are connected by a belt 315. One rack 317 is located in the first moisture-absorbing and breathable layer 32, and the other rack 317 is located in the spare layer 33. The two racks 317 are parallel to each other and face opposite directions, and both racks 317 mesh with the gear 314. By driving the pulleys 316 to rotate via the motor 311, the first moisture-absorbing and breathable layer 32 and the spare layer 33 can run in opposite directions.

[0049] As Figures 1 to 2 shown, in some embodiments, the first moisture-permeable layer 32 is located above the standby layer 33. The standby layer 33 is rotationally connected with the extrusion roller 34, and the extrusion roller 34 abuts against the first moisture-permeable layer 32.

[0050] When the first moisture-permeable layer 32 moves relative to the standby layer 33, the extrusion roller 34 can extrude the moisture in the first moisture-permeable layer 32, thereby completing the preliminary dehumidification of the first moisture-permeable layer 32.

[0051] Further, the box 1 is provided with a drainage channel 19 that is in communication with the outside. The partition 2 has a guide portion 21, which can be an inclined surface. The water droplets extruded by the extrusion roller 34 can fall on the guide portion 21 and be guided into the drainage channel 19 by the guide portion 21, thereby draining the water droplets out of the box 1.

[0052] As Figure 1 and Figure 5 shown, in some embodiments, the first moisture-permeable layer 32 includes an upper permeable plate 321, a lower permeable plate 322, a moisture-absorbing member 323, a guide column 324, and a spring 325.

[0053] The upper permeable plate 321 is slidingly connected with the box 1, and the rack 317 on the first moisture-permeable layer 32 is specifically provided on the upper permeable plate 321.

[0054] The upper permeable plate 321 is parallel to the lower permeable plate 322. Both the upper permeable plate 321 and the lower permeable plate 322 can be realized by perforation to achieve permeability.

[0055] One end of the guide column 324 is connected with the upper permeable plate 321, and the other end is slidingly connected with the lower permeable plate 322. The spring 325 is arranged between the upper permeable plate 321 and the lower permeable plate 322, and the spring 325 is sleeved on the guide column 324.

[0056] The moisture-absorbing member 323 can be a moisture-absorbing cloth. The moisture-absorbing member 323 is multi-layered, and the multi-layered moisture-absorbing member 323 is arranged between the upper permeable plate 321 and the lower permeable plate 322. The multi-layered moisture-absorbing member 323 is connected in sequence, for example, adjacent moisture-absorbing members 323 can be connected by silk threads. The upper permeable plate 321 is connected with the nearest moisture-absorbing member 323, and the lower permeable plate 322 is connected with the nearest moisture-absorbing member 323.

[0057] When the first moisture-permeable layer 32 moves relative to the standby layer 33, the pressing roller 34 can press the lower permeable plate 322, so that the lower permeable plate 322 is close to the upper permeable plate 321, thereby extruding the moisture absorbed by the moisture-absorbing member 323. When the pressing is completed, the lower permeable plate 322 is away from the upper permeable plate 321 under the action of gravity and the restoring force of the spring 325, and the multiple layers of the moisture-absorbing member 323 adhered together are separated from each other, thereby enhancing the permeability of the first moisture-permeable layer 32.

Claims

1. A corrosion-proof power distribution cabinet, characterized in that, The utility model relates to a kind of dry cabinet, including: Box (1) is equipped with anticorrosive coating; Partition (2) is located in the box (1) and the box (1) is separated into first chamber (12), second chamber (13) and third chamber (14) by each other independently, the first chamber (12) and the second chamber (13) are communicated with the third chamber (14), the first chamber (12) has first opening (16), and the second chamber (13) has second opening (17); Moisture absorption assembly (3) includes drive unit (31), first moisture absorption and ventilation layer (32) and standby layer (33), the first moisture absorption and ventilation layer (32) and the standby layer (33) are parallel to each other and are slidably connected with the box (1), the drive unit (31) is connected with the first moisture absorption and ventilation layer (32) and the standby layer (33) respectively, and is used to drive the first moisture absorption and ventilation layer (32) and the standby layer (33) movement in opposite direction, to make the moisture absorption assembly (3) switch between first state and second state; In the first state, the first moisture absorption and ventilation layer (32) is located above the first chamber (12), and the standby layer (33) is located above the second chamber (13); In the second state, the first moisture absorption and ventilation layer (32) is located above the second chamber (13), and the standby layer (33) is located above the first chamber (12); Air guide assembly (4) is located in the third chamber (14), and the air guide assembly (4) includes first air guide piece (41) and second air guide piece (42), the first air guide piece (41) is used to guide the air in the first chamber (12) into the third chamber (14), and the second air guide piece (42) is used to guide the air in the third chamber (14) into the second chamber (13).

2. The corrosion-proof power distribution cabinet according to claim 1, characterized in that: The third chamber (14) is located above the first chamber (12) and the second chamber (13); The top of the third chamber (14) is provided with a third opening (18), and a drying piece (6) is arranged at the third opening (18).

3. The corrosion-proof power distribution cabinet according to claim 2, characterized in that: The standby layer (33) is a non-breathable layer.

4. The corrosion-proof power distribution cabinet according to claim 1 or 2, characterized in that: The standby layer (33) is a second moisture absorption and ventilation layer.

5. The corrosion-proof power distribution cabinet according to claim 1, characterized in that: The first moisture absorption and ventilation layer (32) is located above the standby layer (33); The standby layer (33) is rotatably connected with a squeezing roller (34), the squeezing roller (34) is in abutment with the first moisture absorption and ventilation layer (32), and is used to squeeze out the moisture in the first moisture absorption and ventilation layer (32).

6. The corrosion-proof power distribution cabinet according to claim 5, characterized in that: The box (1) is provided with a drainage channel (19) in communication with the outside world; The partition (2) has a guide portion (21), and the guide portion (21) is used to guide the water squeezed out by the first moisture absorption and ventilation layer to the drainage channel (19).

7. The corrosion-proof power distribution cabinet according to claim 5, characterized in that: The first moisture absorption and ventilation layer (32) includes an upper ventilation plate (321), a lower ventilation plate (322), a moisture absorption piece (323) and a guide column (324); The upper ventilation plate (321) is parallel to the lower ventilation plate (322). The moisture absorbing member (323) is arranged between the upper air-permeable plate (321) and the lower air-permeable plate (322); One end of the guide column (324) is connected with the upper air-permeable plate (321), and the other end is slidingly connected with the lower air-permeable plate (322).

8. The corrosion-proof power distribution cabinet according to claim 7, characterized in that: The moisture absorbing member (323) is multi-layered, and the multi-layered moisture absorbing members (323) are connected in sequence, the upper air-permeable plate (321) is connected with the moisture absorbing member (323) closest to it, and the lower air-permeable plate (322) is connected with the moisture absorbing member (323) closest to it. The first moisture absorbing and air-permeable layer (32) further comprises a spring (325), the spring (325) is arranged between the upper air-permeable plate (321) and the lower air-permeable plate (322), and the spring (325) is sleeved on the guide column (324), the spring (325) is used for driving the lower air-permeable plate (322) to move away from the upper air-permeable plate (321), so that the multi-layered moisture absorbing members (323) are separated from each other.

9. The corrosion-proof power distribution cabinet according to claim 1, characterized in that: The driving unit (31) comprises a motor (311), a first rotating shaft (312), a second rotating shaft (313), a gear (314), a belt (315), two pulleys (316) and two racks (317); The motor (311) is in transmission connection with one of the pulleys (316) through the first rotating shaft (312); the second rotating shaft (313) is in rotation connection with the box body (1), and the gear (314) and the other pulley (316) are both sleeved on the second rotating shaft (313); the two pulleys (316) are in transmission connection through the belt (315); One of the racks (317) is arranged in the first moisture absorbing and air-permeable layer (32), and the other rack (317) is arranged in the standby layer (33); the two racks (317) are parallel to each other and opposite to each other, and the two racks (317) are in meshing connection with the gear (314).

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