A power distribution cabinet with moisture-proof function
By installing a mounting base and ventilation structure at the bottom of the distribution cabinet, combined with moisture-proof side panels and a desiccant, the problems of moisture and dust in the distribution cabinet are solved, achieving effective moisture and dust prevention and improving the reliability and safety of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- 扬中长捷电气有限公司
- Filing Date
- 2023-03-17
- Publication Date
- 2026-07-24
AI Technical Summary
Existing distribution cabinets are prone to moisture during use, leading to problems such as mold on cables, corrosion of metal components, and tripping. Furthermore, existing moisture-proof measures are ineffective in preventing rainwater penetration and dust ingress, resulting in poor moisture protection.
A mounting bracket is installed at the bottom of the distribution cabinet to increase the distance between the bottom and the ground. A ventilation structure and adjustable parts are installed inside the mounting bracket. Combined with a moisture-proof side panel, a desiccant, and a heater, internal air circulation and moisture absorption are achieved, preventing rainwater penetration. The opening and closing of the ventilation holes are controlled by the adjustable parts, and the moisture-proof effect is ensured by the regular replacement of the desiccant.
It effectively prevents rainwater penetration, reduces internal humidity, prevents dust from entering, ensures the inside of the distribution cabinet is dry, avoids mold and rust, and improves equipment reliability and safety.
Smart Images

Figure CN116231468B_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of power distribution cabinet technology, and specifically relates to a power distribution cabinet with moisture-proof function. Background Technology
[0002] Over time, electrical distribution cabinets will inevitably become damp. Some cabinets are severely damp, with surrounding cables covered in mold and metal components inside rusted. They may also experience frequent circuit breaker trips, and in some cases, even fires.
[0003] For example, patent application CN212323427U discloses a low-voltage distribution cabinet with moisture-proof and dehumidification properties, including a low-voltage distribution cabinet body. The bottom of the low-voltage distribution cabinet body is provided with a moisture-proof base. The four corners of the lower end of the moisture-proof base are provided with support structures. The upper end of the moisture-proof base has a groove placement structure. The inner sides and bottom of the groove placement structure are covered with a moisture-proof pad structure. The lower end of the low-voltage distribution cabinet body rests on the moisture-proof pad structure. The upper end of the low-voltage distribution cabinet body is provided with a rainproof plate structure. The rainproof plate structure and the low-voltage distribution cabinet body are connected by a fixing rod. A ventilation fan structure is provided on each of the left and right sides of the low-voltage distribution cabinet body. A dehumidifying cotton mesh structure is provided in the inner cavity of the low-voltage distribution cabinet body near the two ventilation fan structures.
[0004] For example, a patent application with publication number CN213584657U discloses a power distribution cabinet with good moisture-proof effect, including a cabinet body, evenly distributed support legs at the bottom of the cabinet body, and base plates installed on the support legs. The base plates are fixedly connected to their supporting surfaces by bolts. An exhaust fan is installed on the bottom plate of the cabinet body. The side of the exhaust fan away from the internal cavity of the cabinet body is connected to a dustproof box installed on the cabinet body. The bottom plate of the cabinet body has evenly distributed placement grooves. A desiccant box for holding desiccant is placed in the placement groove. The desiccant box is fixedly connected to symmetrically distributed support rods. The support rods are fixedly connected to sliding rods. The sliding rods are nested with fixing blocks installed on the bottom wall of the placement grooves. The fixing blocks and the sliding rods are elastically connected by a second elastic element. A power supply component is fixedly connected to the cabinet body.
[0005] The aforementioned electrical distribution cabinet is designed to prevent moisture by using a rain shield and a ventilation fan. However, in actual use, some rainwater will fall onto the cabinet and seep into it through the gaps. The fan alone cannot quickly remove the humid air inside and can easily draw external dust into the cabinet, resulting in poor dust prevention. Summary of the Invention
[0006] The purpose of this invention is to solve the problems of the prior art and provide a power distribution cabinet with moisture-proof function.
[0007] A moisture-proof power distribution cabinet includes a cabinet body with a hinged door. The bottom of the cabinet body has a mating seat, an internal groove, and bottom ventilation holes. The mating seat is located within the internal groove and has multiple top ventilation holes and auxiliary holes, with the top and bottom ventilation holes corresponding to each other. The mating seat also has an inner cavity containing a fan. A fan motor is mounted at the bottom of the mating seat, and the fan and fan motor are connected. A movable adjusting component is installed in the auxiliary holes. The movable adjusting component includes a protective plate and a cover plate. The protective plate has a through hole with a cross-section... The cover plate is T-shaped, located at the end with the larger diameter of the through hole. The diameter of the cover plate is larger than the maximum diameter of the through hole. A spring connects the protective plate and the cover plate. The protective plate has an auxiliary groove. When the cover plate is in the auxiliary groove, the auxiliary hole is blocked. When the cover plate is detached from the auxiliary groove, the auxiliary hole is open. An operating component is installed on the cover plate. The operating component includes a movable rod. One end of the movable rod is connected to the cover plate. A square through groove is provided on the mating seat. The other end of the movable rod passes through the square through groove and extends to the outside of the mating seat. Operating the movable rod separates the protective plate and the cover plate.
[0008] Furthermore, support blocks are arranged around the mating seat to support the power distribution cabinet. Connectors are installed on the support blocks, and the other end of the connectors is connected to the power distribution cabinet. The connectors are bolted to the power distribution cabinet and the mating seat respectively.
[0009] Furthermore, a spring groove is provided in the through hole, one end of the spring is placed in the spring groove, and the other end of the spring is connected to the cover plate. A middle extension rod is installed on the cover plate opposite the square through groove, and end extension rods are installed on the other cover plates. The axis of the middle extension rod, the central axis of the square through groove, and the axis of the mating seat are on the same plane. A movable rod is installed on the middle extension rod, and a fixed rod is installed above the end extension rods. Connecting plates are installed on the movable rod and the fixed rod, so that the fixed rod moves up and down with the movable rod.
[0010] Furthermore, a handle is installed at one end of the movable rod extending outside the mating seat. The square through groove is provided with multiple limiting holes for accommodating the handle and limiting its position. An auxiliary spring is installed at the other end of the movable rod, and the other end of the auxiliary spring is connected to the intermediate extension rod adjacent to the fan.
[0011] Furthermore, a metal mesh plate is installed inside the cavity of the mating seat, and a heater is installed on the metal mesh plate, the heater being located above the fan.
[0012] Furthermore, the power distribution cabinet is provided with a moisture-proof side panel, which includes a waterproof layer, a moisture-proof layer and a fixing layer, and the fixing layer is made of metal material.
[0013] Furthermore, the waterproof layer is a perforated mesh panel, the moisture-proof layer has a channel, the fixing layer has a storage groove, the channel and the storage groove are connected, and the fixing layer also has a side cover plate, which is located inside the storage groove.
[0014] Furthermore, a hook is installed in the storage compartment, and a desiccant-filled desiccant pack is suspended on the hook.
[0015] Furthermore, the top surface of the side cover plate is a slope.
[0016] Furthermore, a first shielding plate and a second shielding plate are installed on the top of the power distribution cabinet, and a collection groove is also provided on the top of the power distribution cabinet. The first shielding plate and the second shielding plate are located on both sides of the collection groove, and a collection plate is also provided at both ends of the collection groove.
[0017] The beneficial effects of this invention are:
[0018] A mating seat is installed at the bottom of the distribution cabinet to increase the distance between the bottom of the distribution cabinet and the ground. The ventilation structure of the entire distribution cabinet is set at the bottom. The mating seat is also equipped with a movable adjustment component. When needed, the distribution cabinet can be connected to the outside air through the movable adjustment component. Conversely, the auxiliary hole is closed, and the distribution cabinet is in a closed space.
[0019] The side walls of the power distribution cabinet are equipped with moisture-proof side panels. In addition to using fans to dry the inside of the power distribution cabinet, there are also desiccant packs inside the side walls. Under normal conditions, these desiccant packs absorb the humid air inside the power distribution cabinet. The desiccant packs are designed to be replaceable, making them easy to replace periodically and ensuring the moisture absorption effect. Attached Figure Description
[0020] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:
[0021] Figure 1 This is an isometric structural diagram of the power distribution cabinet of the present invention;
[0022] Figure 2 This is a schematic diagram of the main structure of the mating seat of the present invention;
[0023] Figure 3 This is the invention Figure 2 A magnified structural diagram of part A in the diagram;
[0024] Figure 4 This is a top view of the protective plate structure of the present invention;
[0025] Figure 5 This is the invention Figure 2 Another schematic diagram of the structure of part A in the enlarged view;
[0026] Figure 6 This is a top view of the internal cavity structure of the present invention;
[0027] Figure 7 This is a schematic diagram of the front view of the square through-slot structure of the present invention;
[0028] Figure 8 This is a schematic diagram of the main structure of the moisture-proof side panel of the present invention.
[0029] The following are marked in the diagram: 1. Distribution cabinet; 2. Sloping surface; 3. Collection plate; 4. First shield; 5. Collection trough; 6. Second shield; 7. Cabinet door; 8. Fixing layer; 9. Storage trough; 10. Side cover; 11. Desiccant pack; 12. Hook; 13. Moisture-proof layer; 14. Passageway; 15. Waterproof layer; 16. Inner cavity; 17. Fitting seat; 18. Bottom ventilation hole; 19. Internal groove; 20. Movable rod; 21. Top ventilation hole; 22. 1. Connector; 23. Metal mesh plate; 24. Fan motor; 25. Fan; 26. Heater; 27. Handle; 28. Square through slot; 29. Limiting hole; 30. Cover plate; 31. Through hole; 32. Spring; 33. Protective plate; 34. Auxiliary slot; 35. Intermediate extension pole; 36. Auxiliary hole; 37. Spring slot; 38. Connecting plate; 39. Fixing rod; 40. Support block; 41. End extension pole; 42. Auxiliary spring. Detailed Implementation
[0030] Example 1
[0031] A moisture-proof power distribution cabinet includes a cabinet body 1, such as... Figure 1 and Figure 2 As shown, a cabinet door 7 is hinged to the power distribution cabinet 1. A mating seat 17 is provided at the bottom of the power distribution cabinet 1. The mating seat 17 increases the distance between the bottom of the power distribution cabinet 1 and the ground. The bottom of the power distribution cabinet 1 is provided with an internal groove 19, and the mating seat 17 is located in the internal groove 19. The bottom of a conventional power distribution cabinet is flat. When rainwater falls along the outer wall of the power distribution cabinet, it is easy to seep into the power distribution cabinet from the bottom, resulting in high humidity inside the power distribution cabinet. Therefore, the internal groove 19 is recessed relative to the power distribution cabinet 1 to prevent rainwater falling along the outer wall of the power distribution cabinet 1 from seeping into the interior of the power distribution cabinet 1 from the bottom.
[0032] like Figure 2As shown, support blocks 40 are arranged around the mating seat 17 to support the power distribution cabinet 1. Connectors 22 are installed on the support blocks 40. The other end of the connectors 22 is connected to the power distribution cabinet 1. The connectors 22 are bolted to the power distribution cabinet 1 and the mating seat 17 respectively, which facilitates the installation and disassembly of the mating seat 17 and the power distribution cabinet 1. If there is a fault inside the mating seat 7, it will not affect the normal use of the power distribution cabinet and can be replaced or repaired separately.
[0033] To achieve ventilation and dryness within the distribution cabinet 1, such as Figure 1 As shown, the bottom of the power distribution cabinet 1 is also provided with a bottom ventilation hole 18, and the mating seat 17 is provided with a number of top ventilation holes 21 and auxiliary holes 36. The top ventilation holes 21 and the bottom ventilation holes 18 correspond to each other. Specifically, the bottom ventilation holes 18, the top ventilation holes 21 and the auxiliary holes 36 are used to realize the interconnection of air inside and outside the power distribution cabinet 1.
[0034] To prevent dust, high humidity air, etc. from entering the distribution cabinet 1 under normal conditions, such as Figure 3 and Figure 4 As shown, a movable adjusting component is installed inside the auxiliary hole 36. The movable adjusting component includes a protective plate 33 and a cover plate 30. Specifically, as shown... Figure 5 As shown, the protective plate 33 is provided with a through hole 31, the cross-section of the through hole 31 is T-shaped, and the cover plate 30 is located at the end with the larger diameter of the through hole 31. The diameter of the cover plate 30 is larger than the maximum diameter of the through hole 31.
[0035] The protective plate 33 is provided with an auxiliary groove 34. When the cover plate 30 is located in the auxiliary groove 34, the auxiliary hole 36 is in a blocked state. When the cover plate 30 is removed from the auxiliary groove 34, the auxiliary hole 36 is in a conductive state. In order to make the movement of the cover plate 30 relative to the protective plate 33 reliable, a spring 32 is connected between the protective plate 33 and the cover plate 30. A spring groove 37 is provided in the through hole 31. One end of the spring 32 is placed in the spring groove 37, and the other end of the spring 32 is connected to the cover plate 30. When the cover plate 30 is removed from the auxiliary groove 34, the spring 32 is stretched by force. Conversely, the cover plate 30 returns to the auxiliary groove 34 by the elastic force of the spring 32.
[0036] When the auxiliary hole 36 is in a blocked state, it prevents external humid gas from entering the inside of the distribution cabinet 1. Conversely, when the auxiliary hole 36 is in a conductive state, it reduces the humidity of the air inside the distribution cabinet 1.
[0037] To enable the cover plate 30 to move relative to the protective plate 33, an operating component is installed on the cover plate 30, such as... Figure 5 and Figure 6 As shown, the operating component includes a movable rod 20. One end of the movable rod 20 is connected to the cover plate 30. The mating seat 17 is provided with a square through groove 28. The other end of the movable rod 20 passes through the square through groove 28 and extends to the outside of the mating seat 17. Operating the movable rod 20 separates the protective plate 33 and the cover plate 30.
[0038] Specifically, a middle extension rod 35 is installed on the cover plate 30 facing the square through groove 28, and an end extension rod 41 is installed on the other cover plates 30. The axis of the middle extension rod 35, the central axis of the square through groove 28, and the axis of the mating seat 17 are on the same plane. A movable rod 20 is installed on the middle extension rod 35, and a fixed rod 39 is installed above the end extension rod 41. A connecting plate 38 is installed on the movable rod 20 and the fixed rod 39, so that the fixed rod 39 moves up and down with the movable rod 20.
[0039] To further accelerate the movement of the cover plate 30 relative to the protective plate 33, a handle 27 is installed at one end of the movable rod 20 extending outside the mating seat 17, such as... Figure 7 As shown, the square through groove 28 is provided with multiple limiting holes 29 for accommodating the handle 27 and limiting the handle 27. The movable rod 20, the intermediate extension rod 35, and the connecting plate 38 are slidably connected. An auxiliary spring 42 is installed at the other end of the movable rod 20. The other end of the auxiliary spring 42 is connected to the intermediate extension rod 35 adjacent to the fan 25.
[0040] Specifically, when the handle 27 is pulled outward, the auxiliary spring 42 is compressed. Then the handle 27 is moved upward, and the cover plate 30 moves upward relative to the protective plate 33. When the handle 27 is aligned with the limiting hole 29, the handle 27 is released. The handle 27 is placed in the limiting hole 29 by the elastic force of the auxiliary spring 42. At this time, the auxiliary hole 36, the through hole 31, the top ventilation hole 21 and the bottom ventilation hole 18 are connected, and the air inside and outside the power distribution cabinet 1 circulates.
[0041] Example 2
[0042] Based on the above embodiment 1, when the humidity inside the power distribution cabinet 1 is high, in order to speed up the air circulation, the mating seat 17 is also provided with an inner cavity 16, and a fan 25 is installed in the inner cavity 16. A fan motor 24 is installed at the bottom of the mating seat 17. The fan 25 and the fan motor 24 are connected. When working, the fan 25 is turned on by the fan motor 24, thereby speeding up the air circulation inside and outside the power distribution cabinet 1 and making the inside of the power distribution cabinet 1 dry quickly.
[0043] To further accelerate the drying of the interior of distribution cabinet 1 and prevent it from being in a dry-humid environment for a long time, such as Figure 2 As shown, a metal mesh plate 23 is installed in the inner cavity 16 of the mating seat 17, and a heater 26 is installed on the metal mesh plate 23. The heater 26 is located above the fan 25. Specifically, when the fan 25 is turned on for drying, the heater 26 is turned on. The heater 26 heats the gas inside the power distribution cabinet 1 and the hot air is quickly diffused by the fan.
[0044] The other components and principles in this embodiment are the same as in Embodiment 1.
[0045] Example 3
[0046] Based on the above-described embodiment two, the distribution cabinet 1 is equipped with a moisture-proof side panel. By improving the structure of the distribution cabinet 1 itself, it achieves the purpose of moisture prevention, such as... Figure 8 As shown, the moisture-proof side panel includes a waterproof layer 15, a moisture-proof layer 13, and a fixing layer 8, with the fixing layer 8 made of metal.
[0047] The waterproof layer 15 is a perforated mesh plate and is coated with waterproof paint. The moisture-proof layer 13 has a channel 14. The fixing layer 8 has a storage slot 9, and the channel 14 and the storage slot 9 are connected. The fixing layer 8 also has a side cover plate 10, which is located in the storage slot 9. A hook 12 is installed in the storage slot 9, and a desiccant pack 11 is suspended on the hook 12. The desiccant pack 11 is filled with desiccant. The desiccant pack 11 can absorb the moisture inside the power distribution cabinet 1 as well as the moisture that seeps in from the outer wall of the power distribution cabinet 1. The desiccant pack 11 can be replaced periodically by operating the side cover plate 10.
[0048] The top of the power distribution cabinet 1 is equipped with a first shielding plate 4 and a second shielding plate 6. The top of the power distribution cabinet 1 is also provided with a collection groove 5. The first shielding plate 4 and the second shielding plate 6 are located on both sides of the collection groove 5. The two ends of the collection groove 5 are also provided with collection plates 3. Specifically, rainwater falls directly to the ground after passing through the first shielding plate 4 and the second shielding plate 6, and the other part is collected in the collection groove 5 and discharged through the collection plates 3, so as to prevent rainwater from falling on the outer wall of the power distribution cabinet 1. At the same time, the top surface of the side cover plate 10 is a slope 2 to prevent rainwater from seeping into the power distribution cabinet 1 from the gap between the storage groove 9 and the side cover plate 10.
[0049] The other components and principles in this embodiment are the same as in Embodiment 2.
[0050] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A power distribution cabinet with moisture-proof function, comprising a cabinet body, wherein a cabinet door is hinged to the cabinet body, characterized in that, The bottom of the power distribution cabinet is provided with a mating seat. The bottom of the power distribution cabinet has an internal groove and a bottom ventilation hole. The mating seat is located within the internal groove and has multiple top ventilation holes and auxiliary holes. The top ventilation holes correspond to the bottom ventilation holes. The mating seat also has an inner cavity, in which a fan is installed. A fan motor is installed at the bottom of the mating seat, and the fan and fan motor are connected. A movable adjusting component is installed in the auxiliary hole. The movable adjusting component includes a protective plate and a cover plate. The protective plate has a through hole with a T-shaped cross-section, and the cover plate is located within the through hole. At the larger diameter end, the diameter of the cover plate is greater than the maximum diameter of the through hole. A spring connects the protective plate and the cover plate. An auxiliary groove is provided on the protective plate. When the cover plate is located in the auxiliary groove, the auxiliary hole is in a blocked state. When the cover plate is removed from the auxiliary groove, the auxiliary hole is in a conductive state. An operating component is installed on the cover plate. The operating component includes a movable rod. One end of the movable rod is connected to the cover plate. A square through groove is provided on the mating seat. The other end of the movable rod passes through the square through groove and extends to the outside of the mating seat. Operating the movable rod separates the protective plate and the cover plate. A spring groove is provided in the through hole, one end of the spring is placed in the spring groove, and the other end of the spring is connected to the cover plate. A middle extension rod is installed on the cover plate opposite the square through groove, and end extension rods are installed on the other cover plates. The axis of the middle extension rod, the central axis of the square through groove, and the axis of the mating seat are on the same plane. A movable rod is installed on the middle extension rod, and a fixed rod is installed above the end extension rod. A connecting plate is installed on the movable rod and the fixed rod, so that the fixed rod moves up and down with the movable rod. A handle is installed at one end of the movable rod extending outside the mating seat. The square through groove is provided with multiple limiting holes for accommodating the handle and limiting its position. An auxiliary spring is installed at the other end of the movable rod, and the other end of the auxiliary spring is connected to the intermediate extension rod adjacent to the fan.
2. The power distribution cabinet with moisture-proof function according to claim 1, characterized in that, Support blocks are arranged around the mating seat to support the power distribution cabinet. Connectors are installed on the support blocks, and the other end of the connectors is connected to the power distribution cabinet. The connectors are bolted to the power distribution cabinet and the mating seat respectively.
3. The distribution cabinet with moisture-proof function according to any one of claims 1-2, characterized in that, A metal mesh plate is installed inside the cavity of the mating seat, and a heater is installed on the metal mesh plate, with the heater located above the fan.
4. The power distribution cabinet with moisture-proof function according to claim 1, characterized in that, The power distribution cabinet is equipped with a moisture-proof side panel, which includes a waterproof layer, a moisture-proof layer, and a fixing layer. The fixing layer is made of metal.
5. The power distribution cabinet with moisture-proof function according to claim 4, characterized in that, The waterproof layer is a perforated mesh panel, the moisture-proof layer has a channel, the fixing layer has a storage groove, the channel and the storage groove are connected, and the fixing layer also has a side cover plate, which is located in the storage groove.
6. The power distribution cabinet with moisture-proof function according to claim 5, characterized in that, A hook is installed inside the storage compartment, and a desiccant-filled desiccant pack is suspended from the hook.
7. The power distribution cabinet with moisture-proof function according to claim 5, characterized in that, The top surface of the side cover plate is sloping.
8. The power distribution cabinet with moisture-proof function according to claim 4, characterized in that, The top of the power distribution cabinet is equipped with a first shield and a second shield, and the top of the power distribution cabinet is also provided with a collection groove. The first shield and the second shield are located on both sides of the collection groove, and the two ends of the collection groove are also provided with collection plates.