Electrical cabinet and door assembly thereof

Abstract

The utility model discloses an electrical cabinet and door body subassembly, relate to electrical cabinet technical field, wherein, electrical cabinet includes: cabinet body, has side plate and bottom plate, door board is located on side plate, door board has opposite first side and second side, door board is equipped with air port, air port intercommunication first side with second side, louver is installed in air port place, flow guide piece is located in the lower part of louver, and flow guide piece is spaced apart with door board and is surrounded and forms the passage of upper part opening. The electrical cabinet in the utility model reduces the risk of rainwater backflow to the inside, and improves the waterproof performance of equipment.

Description

Technical Field

[0001] This utility model relates to the field of electrical cabinet technology, and in particular to an electrical cabinet and its door assembly. Background Technology

[0002] In power equipment such as outdoor air-cooled energy storage cabinets, air inlet louvers are usually installed on the door panels to ensure normal operation and heat dissipation. However, the air inlet louvers currently used still pose a problem when encountering severe weather such as heavy rain or strong winds, as external water can still flow through the louvers and enter the equipment enclosure, potentially causing safety hazards such as moisture damage and short circuits. Utility Model Content

[0003] The main purpose of this utility model is to propose an electrical cabinet and its door assembly, which aims to solve the above-mentioned technical problems.

[0004] To achieve the above objectives, this utility model proposes an electrical cabinet, including a cabinet body with a base plate and side plates surrounding the base plate. The cabinet body is used to house electrical equipment. A door panel is provided on the side plate, and the door panel has a first side and a second side facing each other. The first side can be the side facing the inside of the electrical cabinet, and the second side can be the side facing the outside of the equipment. An air vent is provided on the door panel, and the air vent connects the first side and the second side. External airflow can enter the interior of the electrical cabinet through the air vent to dissipate heat from the interior of the electrical cabinet.

[0005] In addition, louvers are installed at the air vents. These louvers can be used to block external rainwater and foreign objects from entering the equipment, reducing the risk of the equipment getting damp or short-circuiting.

[0006] In addition, to reduce the possibility of water accumulation inside the electrical cabinet, a deflector is provided on the first side of the door panel. The deflector is located on the side of the louvers near the bottom plate, and it is spaced apart from the door panel to form a channel with an upper opening. The deflector can catch rainwater on the first side of the door panel and the louvers and collect the rainwater, thus preventing rainwater from splashing into the electrical cabinet and avoiding short circuits or corrosion of the internal electrical equipment. In addition, in the above solution, rainwater can drip naturally onto the deflector under the action of gravity without the need for additional power, which helps to simplify the structure. Moreover, the deflector is located below the louvers, so there is no need to change the structure of the louvers and it does not affect the ventilation effect of the louvers, thus taking into account both the heat dissipation performance and waterproof performance of the equipment.

[0007] This utility model also proposes a door assembly for use on an electrical cabinet. The door assembly can be installed at an opening on the electrical cabinet to allow personnel and equipment to enter and exit. The door assembly includes a door panel for opening and closing the opening. The door panel has a first side and a second side facing each other. An air vent is provided on the door panel, which passes through the door panel and connects the first side and the second side. The air vent allows external airflow to enter the electrical cabinet to dissipate heat from the equipment inside the electrical cabinet.

[0008] In addition, louvers are installed at the air vents. These louvers can block external rainwater and foreign objects from entering the equipment, reducing the risk of damage to the equipment due to moisture or short circuits.

[0009] In addition, the door assembly also includes a flow guide, which is located on the first side of the door panel. In the height direction of the electrical cabinet, the flow guide is located below the louvers. The flow guide and the door are spaced apart, forming a channel between them. The channel has an opening at the top. Rainwater dripping from the top of the door panel and the louvers can be caught by the flow guide and flow into the channel from the opening, where it is collected. This prevents rainwater from splashing into the electrical cabinet and avoids short circuits or corrosion of the internal electrical equipment. Attached Figure Description

[0010] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0011] Figure 1 Exploded view of the structure of an embodiment of the electrical cabinet provided by this utility model; Figure 2 for Figure 1 A schematic diagram of the structure of the door assembly; Figure 3 for Figure 2 A cross-sectional view of the location of the central door assembly; Figure 4 for Figure 3 A magnified view of a section at point A in the middle; Figure 5 for Figure 2 A schematic diagram of the flow guide component in the gate assembly; Figure 6 for Figure 2 Another structural diagram of the door assembly; Figure 7 Exploded view of another embodiment of the electrical cabinet provided by this utility model; Figure 8 for Figure 7 A schematic diagram of the structure of the door assembly; Figure 9 for Figure 8 A cross-sectional view of the location of the central door assembly; Figure 10 for Figure 9 A magnified view of a section at point B in the middle; Figure 11 for Figure 8 A schematic diagram of the flow guide component in the gate assembly; Figure 12 for Figure 8 Another structural diagram of the door assembly.

[0012] Explanation of icon numbers: 10. Door assembly; 20. Cabinet body; 21. Base plate; 22. Side panel; 30. Gap; 40. Water-retaining part; 100. Door panel; 110. Air vent; 120. Panel; 130. Flanged edge; 140. Groove; 150. Drain hole; 160. First side; 170. Second side; 200. Louver; 300. Air guide; 310. Main board; 311. First panel; 312. Second panel; 320. Channel; 330. Third bending plate; 340. First bending plate; 341. First bending body; 342. Second bending body; 343. Third bending body; 350. Second bending plate.

[0013] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0014] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0015] It should be noted that if the embodiments of this application 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 specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0016] Furthermore, if the embodiments of this application involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies A and B. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0017] This application provides an embodiment of an electrical cabinet, which can be an energy storage cabinet, a photovoltaic substation cabinet, a combiner cabinet, etc. Figure 1 and Figure 7 As shown, the electrical cabinet includes a cabinet body 20, which is the main structure of the electrical cabinet. The cabinet body 20 includes a base plate 21 and side plates 22 surrounding the base plate 21. The base plate 21 is used to support the ground and carry the equipment inside the electrical cabinet. An opening can be provided on the side plate 22, and a door panel can be installed at the opening. The user can open and close the opening by operating the door panel to allow equipment and personnel to enter and exit the cabinet body 20; in addition, as Figure 3 and Figure 9 The door panel 100 has a first side 160 and a second side 170, the first side 160 being the side of the door panel facing the interior of the cabinet, and the second side 170 being the side of the door panel facing the exterior of the electrical cabinet; as shown Figure 2 and Figure 8 An air vent 110 is provided on the door panel 100. The air vent 110 can be a regular rectangle. The first side 160 and the second side 170 are connected through the air vent 110, so that when the door assembly 10 is closed, the airflow of the second side 170 can enter the first side 160 through the air vent 110 to cool the equipment inside the electrical cabinet. In addition, a louver 200 is installed at the air vent 110. The louver 200 can be a conventional model available on the market. The purpose of setting the louver 200 is to ensure that the external airflow can pass through, and to block rainwater from passing through, so as to prevent the internal equipment from getting damp or short-circuiting, thereby improving the safety and reliability of the electrical cabinet.

[0018] In addition, such as Figure 3 and Figure 9 To further improve the waterproofing and drainage performance of the electrical cabinet, a flow guide 300 is provided on the first side 160 of the door panel 100, such as... Figure 1 and Figure 7Along the height of the electrical cabinet, a guide member 300 is positioned below the louver 200. The guide member 300 can be a plate-like structure, and it can be tilted or bent towards the door. The guide member 300 and the door panel are spaced apart, forming a channel 320 between them. The channel 320 extends along the height of the electrical cabinet, and an opening is provided at the top of the channel 320, which is directly opposite the louver 200. When external rainwater passes through the louver 200 and splashes onto the first side 160, the rainwater will be affected by gravity. Rainwater drips onto the lower guide 300 and is collected by the channel 320, thus preventing electrical equipment inside the electrical cabinet from being corroded by rainwater and reducing the risk of moisture damage or short circuits. The entire process requires no additional power unit, simplifying the overall structure and reducing equipment complexity and cost. Furthermore, the placement of the guide 300 does not interfere with the louvers 200, preserving their original structure and ventilation effect while balancing heat dissipation and waterproofing. In some embodiments, to facilitate rainwater collection, an opening can be provided below the channel 320 along the height of the electrical cabinet, with a drip tray below the opening. Collected rainwater flows into the drip tray, preventing water accumulation on the base plate 21 and further reducing the risk of moisture damage or short circuits to the internal equipment. It also allows users to easily empty rainwater, improving usability.

[0019] In another embodiment of this application, a gap 30 is provided between the base plate 21 and the door panel 100, the gap 30 connecting the first side 160 and the second side 170, and the channel 320 communicating with the gap 30. Figure 4 and Figure 10 A gap 30 is provided between the door panel 100 and the base plate 21 of the electrical cabinet. The gap 30 can be a drainage pipe structure specifically installed on the base plate 21, or a water trough structure extending from the first side 160 to the second side 170 on the base plate 21. The purpose of the gap 30 is to divert accumulated water from the first side 160 to the second side 170, thereby draining water from inside the electrical cabinet to the outside and reducing the risk of moisture damage or short circuits to the internal equipment. Additionally, if... Figure 4 and Figure 10 The guide 300 can extend toward the gap 30, and the channel 320 communicates with the gap 30. The guide 300 can be used to receive water dripping from the first side 160 on the door panel 100 and the louver 200, and guide the water to the gap 30 through the channel 320, and finally drain it to the second side 170. This can prevent water from accumulating on the base plate 21 or other locations inside the electrical cabinet, and reduce the risk of moisture or short circuit of the equipment inside the electrical cabinet.

[0020] In this application, the gap 30 is formed in two ways. In one way, the gap 30 is formed between the door panel 100 and the guide member 300, such as... Figure 4The guide element 300 can extend to the bottom of the door panel 100 and is spaced apart from the door panel 100 to form the aforementioned gap 30. Water flow within the channel 320 can flow downwards along the side wall of the guide element 300 under the wall-attachment effect and exit the cabinet 20 through the gap 30. This method has a compact structure, a short drainage path, and the water flow is always confined between the door panel 100 and the guide element 300, resulting in good drainage performance. Figure 10 In another approach, the bottom of the door panel 100 can be spaced apart from the base plate 21, with a gap 30 defined between them. Water flowing through the channel 320 can flow onto and circulate on the base plate 21, eventually exiting the cabinet 20 through the gap 30. This method makes full use of the base plate 21, resulting in smoother drainage. Furthermore, it requires less modification to the design of components such as the door panel 100 and the base plate 21, simplifying the structure. In summary, both methods effectively achieve drainage and have their own advantages. The choice of method depends on actual needs and design preferences, and no restrictions are placed here.

[0021] In another embodiment of this application, the projection area of ​​the guide member 300 on the base plate 21 covers the projection area of ​​the louver 200 on the base plate 21. In this solution, the area on the guide member 300 that can collect rainwater completely covers the area where the louver 200 is located. This ensures that rainwater dripping from the louver 200 can be collected by the guide member 300. This not only prevents rainwater from splashing or scattering inside the electrical cabinet and avoids the formation of local water accumulation inside the electrical cabinet, but also further improves the waterproof and drainage performance inside the electrical cabinet, ensuring the long-term reliability and service life of the electrical equipment.

[0022] like Figure 3 and Figure 9 As shown, in one embodiment of this application, in the first direction, the distance from the end of the first plate 311 away from the door panel 100 to the door panel 100 is a, and the distance from the end of the louver 200 located on the first side 160 away from the door panel 100 to the door panel 100 is b, where a ≥ b. This design ensures that the coverage area of ​​the first plate 311 in the first direction is at least level with the louver 200. That is, in the first direction, the projection area of ​​the first plate 311 on the base plate 21 can cover the projection area of ​​the louver 200 on the base plate 21. When rainwater drips from the louver 200, it can be completely caught by the first plate 311 below, and then discharged to the outside of the equipment through the first guide 300 and the gap 30. This further reduces the possibility of water entering the electrical cabinet and ensures the waterproof performance of the electrical cabinet.

[0023] Of course, the coverage area of ​​the first plate 311 in the first direction can be larger than that of the louver 200. When rainwater drips from the louver 200, because the first plate 311 extends further along the first direction, even if the rainwater is affected by wind or other factors and generates a certain speed in the horizontal direction and falls in an inclined and scattered manner, it can still be caught by the first plate 311. This enhances the waterproof performance of the electrical cabinet in severe weather such as rainstorms and strong winds, and ensures that the interior of the electrical cabinet is always in a dry and safe operating environment.

[0024] In addition, such as Figure 6 and Figure 12 In another embodiment of this application, the width of the first plate 311 in the second direction is d, and the width of the louver 200 in the second direction is e, where d ≥ e. By adopting the aforementioned dimensional relationship between the first plate 311 and the louver 200, it can be ensured that the first plate 311 can fully cover the louver 200 in the second direction. That is, in the second direction, the projection area of ​​the first plate 311 on the base plate 21 can cover the projection area of ​​the louver 200 on the base plate 21. In the second direction, regardless of where rainwater falls on the louver 200, it can be caught by the first plate 311, thereby preventing secondary splashing or scattering of rainwater inside the electrical cabinet and further enhancing the waterproof performance of the electrical cabinet. Furthermore, the size of d can be flexibly set according to requirements, for example, such as... Figure 1 In the embodiment shown, the guide member 300 can extend fully to mate with the side wall of the electrical cabinet in the second direction, thus eliminating the possibility of rainwater leakage from the second direction; and for situations where the internal space of the electrical cabinet is limited, a method can be adopted... Figure 7 In this embodiment, the first guide member 300 can be flush with or slightly larger than the louver 200 in the second direction, which reduces the space occupied inside the electrical cabinet while ensuring the rainwater collection effect.

[0025] In addition, it can be conceivable that in both the first and second directions, the projection area of ​​the first plate 311 on the base plate 21 can evenly cover the projection area of ​​the louver 200 on the base plate 21, i.e., a≥b and d≥e. This ensures that regardless of whether rainwater is only sprayed along the first direction, only along the second direction, or simultaneously along both directions, the rainwater can be caught by the first plate 311. This further improves the rainwater catching effect of the guide component 300 and maximizes the waterproof performance of the electrical cabinet.

[0026] like Figure 3 and Figure 9In another embodiment of this application, in the first direction, the distance from one end of the first plate 311 away from the door panel 100 to the other end of the louver 200 away from the door panel 100 is c, where c is not less than 5mm and not greater than 20mm. In this scheme, c=ab, that is, the distance c is the length of the first plate 311 protruding from the louver 200 in the first direction. Firstly, setting the distance c to no less than 5mm is because, due to factors such as wind, rainwater often generates a certain speed in the horizontal direction during its descent, exhibiting a tilted descent. A distance of 5mm ensures that the first plate 311 of the guide component 300 has sufficient extension range in the first direction, thereby effectively covering the possible tilted descent path of rainwater and reducing the possibility of rainwater entering the electrical cabinet. On the other hand, limiting the distance c to no more than 20mm is based on the rational utilization of the internal space of the electrical cabinet. During the design and manufacturing process of the electrical cabinet, various components inside the cabinet need to be rationally arranged within a limited space. If the distance c is too large, the guide component 300 will unnecessarily encroach on the internal space of the electrical cabinet. Controlling the distance c to within 20mm can minimize its occupation of the internal space of the electrical cabinet while ensuring that the guide component 300 effectively receives rainwater, thus balancing space utilization and waterproof performance.

[0027] In addition, such as Figure 9 To further improve the rainwater collection effect, in one embodiment, the projection of the guide 300 on the door panel 100 and the projection of the louver 200 on the door panel 100 can partially overlap, that is, the louver 200 can partially extend into the channel 320. This ensures that all the rainwater flowing down from the louver 200 can flow into the channel 320, thus ensuring the rainwater collection effect of the guide 300. In addition, it is conceivable that the louver 200 can also be completely accommodated in the channel 320, which can completely eliminate the possibility of rainwater splashing into the cabinet body, thereby maximizing the waterproof effect.

[0028] like Figure 3 and Figure 9The diagram illustrates the structure of one embodiment of the flow guide 300. The flow guide 300 includes a main board 310, which can be a flat or bent plate-like structure. The main board 310 is disposed on the first side 160 and located at the bottom of the louver 200. The main board 310 and the door panel 100 are spaced apart to form the aforementioned channel 320. Furthermore, to ensure a sufficiently large opening size for the channel 320, the main board 310 and the door panel 100 can be closed to form a funnel-shaped channel 320. That is, the distance between the upper part of the main board 310 and the door panel 100 is greater than the distance between the lower part of the main board 310 and the door panel 100. Rainwater dripping from the louver 200 can be collected by the main board 310 and guided downwards, eventually flowing into the drip tray or gap below. The flow guide 300, using the above structure, simplifies its structure while fulfilling its basic functions, reducing design and manufacturing difficulties. Additionally, in Figure 3 In one of the illustrated solutions, the main board 310 can be fixed to the base plate 21 and extends along the second direction. In this solution, the main board 310 can be used as a threshold for the electrical cabinet, preventing external rainwater from flowing into the electrical cabinet from the base plate 21, thus improving the waterproof effect and further enhancing the overall protective performance of the electrical cabinet. Figure 9 In another embodiment shown, the main board 310 can be fixed to the first side 160 of the door panel 100 and move with the door panel 100. The relative position between the main board 310 and the door panel 100 remains fixed, so the position of the channel 320 is also relatively stable, ensuring the stability of the drainage effect. Moreover, the main board 310 is hidden in the first side 160 of the door panel 100, making full use of the space on the door panel 100, which helps to improve the overall aesthetics of the electrical cabinet.

[0029] like Figure 5 and Figure 11 A specific structure of the motherboard 310 is shown. In this embodiment, the motherboard 310 includes: The first panel 311 is disposed on the first side 160 and spaced apart from the door panel 100. The first panel 311 is disposed on the side of the louver 200 near the bottom plate 21, and the first panel 311 extends obliquely toward the end of the door panel 100 near the bottom plate 21. The second plate 312 is disposed on the first plate 311 at one end near the door panel 100 and spaced apart from the door panel 100. The second plate 312 extends toward the gap 30, and the water flow is guided to the gap 30 through the first plate 311 and the second plate 312.

[0030] like Figure 4 and Figure 10In both forms of the mainboard 310 shown, the mainboard 310 has a first plate 311 and a second plate 312. Both the first plate 311 and the second plate 312 are plate-shaped structures. The first plate 311 is located on the first side 160, and there is a gap between the first plate 311 and the door panel 100. The purpose of this gap is to create a space for water flow. Furthermore, the first plate 311 is positioned on the side of the louver 200 near the bottom plate 21, in the path of the falling water, thus ensuring that the first plate 311 can immediately receive water from the louver. Rainwater slides down the window 200; the first plate 311 extends towards the door panel 100 and tilts towards the bottom plate 21. This tilt ensures that rainwater can slide quickly and smoothly down the surface of the first plate 311 under gravity, without stagnation or backflow, guaranteeing that the rainwater can eventually drain smoothly from the electrical cabinet. Furthermore, the angle of inclination of the first plate 311 relative to the bottom plate 21 is typically between 15 and 30 degrees. This achieves both good drainage and, for the same dimensions, allows the first plate 311 to... Figure 4 The first direction shown can extend a greater length, thus ensuring better rainwater collection.

[0031] The second plate 312 is located on the first plate 311 at one end near the door panel 100, and is also spaced apart from the door panel 100. Rainwater can flow naturally from the first plate 311 to the second plate 312 under the wall effect. The second plate 312 extends toward the gap 30, and its shape and direction are adapted to the inlet of the gap 30. After being guided by the first plate 311, the water flows to the second plate 312, and then flows into the gap 30 under the guidance of the second plate 312, and is finally discharged to the second side 170. In this design, the second plate 312 is set parallel to the door panel 100, that is, the second plate 312 is set perpendicular to the ground. This allows the water to enter the gap 30 at a faster speed under the action of gravity and be discharged from the electrical cabinet more smoothly, thus improving the drainage efficiency.

[0032] like Figure 3 and Figure 4 The diagram illustrates one way the gap 30 is formed. In this scheme, a first bending plate 340 is provided on the main board 310 near the bottom plate 21. The first bending plate 340 is connected to the bottom plate 21, and the door panel 100 cooperates with the first bending plate 340 to form a gap.

[0033] In this design, the first bent plate 340 can be fixed to the base plate 21. The first bent plate 340 can be a plate-like structure, and it can be attached to the base plate 21 and fixed to it by welding or other means. Thus, the guide member 300 as a whole can serve as a threshold structure, preventing external rainwater from flowing into the electrical cabinet from the base plate 21, improving the waterproof effect. Additionally, the door panel 100 is positioned above the first bent plate 340, and the door panel 100 and the first bent plate 340 are fitted together with a gap, forming the aforementioned gap 30. The main board 310 is connected to the first bent plate 340. Specifically, the second plate 312 on the main board 310 is connected to the first bent plate 340. Figure 4 As shown, when rainwater drips, the water flow can be guided through the first plate 311 and the second plate 312 to the gap between the first bent plate 340 and the door panel 100, and then discharged to the outside of the second side 170, i.e., the electrical cabinet. In the above scheme, the first bent plate 340 provides a certain degree of protection for the bottom plate 21 of the electrical cabinet, preventing external rainwater from entering the electrical cabinet from the bottom, further enhancing the overall protective performance of the electrical cabinet. In practical applications, this guide component 300 with a threshold function can block the intrusion of ground water or mud, improving the environmental adaptability of the electrical cabinet and the reliability of the equipment.

[0034] like Figure 5 The diagram illustrates a structural form of one embodiment of the first bending plate 340, in which the first bending plate 340 includes: The first bent body 341 is attached to and fixedly connected to the base plate 21; The second bent body 342 is fixedly connected to one end of the first bent body 341 near the second side 170, and the second bent body 342 extends away from the bottom plate 21. The third bent body 343 is fixedly connected to the end of the second bent body 342 away from the first bent body 341, and the third bent body 343 extends toward the first side 160. The third bent body 343 is fixedly connected to the second plate 312.

[0035] The first bent body 341, the second bent body 342, and the third bent body 343 can be integrally formed and are C-shaped. All three can be plate-like structures. The first bent body 341 is attached to the base plate 21 and fixedly connected by welding or other methods, thus ensuring the installation stability of the entire guide component 300. The second bent body 342 is fixedly connected to the end of the first bent body 341 near the second side 170, and it can extend parallel to the door panel 100. The second bent body 342 increases the overall height of the first bent plate 340, improving the water-blocking effect. In some embodiments, the second bent body 342 can be flush with the door panel 100. When viewed from outside the electrical cabinet, the door panel 100 is located... The entire plane can remain flush, which significantly improves the aesthetics of the electrical cabinet. The third bend 343 is connected to the end of the second bend 342 away from the first bend 341 and is parallel to the first bend 341. A gap 30 is formed between the third bend 343 and the door panel 100. At the same time, the end of the third bend 343 away from the second bend 342 is connected to the second plate 312. After the water flows through the first plate 311 and the second plate 312, it is discharged from the third bend 343 to the second side 170. In addition, when the first bend plate 340 is fixed to the base plate 21 by screws or other fasteners, the cavity formed by the mutual avoidance between the first bend 341, the second bend 342 and the third bend 343 also provides operating space for installation.

[0036] like Figure 10 Another embodiment of the gap 30 is shown, in which the first side 160 is provided with a water-blocking portion 40 connected to the base plate 21. The water-blocking portion 40 protrudes from the base plate 21 and extends in a second direction. The door panel 100 is clearance-fitted with the base plate 21 and defines the gap 30. The water-blocking portion 40 may be a protrusion on the base plate 21, and it extends in the second direction. The water-blocking portion 40 is used to prevent external rainwater from flowing into the electrical cabinet from the base plate 21. Furthermore, the clearance-fitted door panel 100 and the base plate 21 together define the aforementioned gap 30.

[0037] like Figure 11 As shown, a second bending plate 350 is provided on at least one side of the side plate along the second direction. The second bending plate 350 can be a plate-like structure, and the second bending plate 350 can be bent relative to the first plate 311, such as... Figure 11As shown, both the first plate 311 and the second plate 312 can be connected to the second bent plate 350, or one of them can be connected to the second bent plate 350. The second bent plate 350 can be set at both ends of the guide member 300 along the second direction. The second bent plate 350 can be welded and fixed to the door panel 100 to ensure the connection strength between the guide member 300 and the door panel 100. In addition, the setting of the second bent plate 350 makes the guide member 300 and the door panel 100 enclose a channel 320 that only runs through the height direction of the electrical cabinet. The rainwater collected flows in from the opening at the top of the channel 320, and then flows into the gap 30 from the opening at the bottom of the channel 320, and finally is discharged through the gap 30. This ensures that the flow direction of the water is further limited, thus ensuring the drainage effect.

[0038] like Figure 10 As shown, in one embodiment of this application, the door panel 100 includes a panel 120 and a flange 130 disposed on the panel 120 near the bottom plate 21. The flange 130 is bent and connected to the panel 120, and the flange 130 and the panel 120 together form a groove 140 with an upper opening. A drainage hole 150 is provided on the side of the groove 140 near the bottom plate 21. The drainage hole 150 communicates with the gap 30, and the main panel 310 extends into the groove 140.

[0039] In this design, the door panel 100 includes a panel 120 and a flange 130 disposed on the panel 120 near the bottom plate 21. The flange 130 is connected to the panel 120 by a bending process. The flange 130 is provided to improve the overall structural strength of the door panel 100. The flange 130 is L-shaped. The flange 130 and the panel 120 together form a groove 140. This groove 140 has an opening on the side away from the bottom plate 21. A drainage hole 150 is provided on the side of the groove 140 near the bottom plate 21. The drainage hole 150 communicates with the gap 30. In addition, the mainboard 310 can extend into the groove 140, so that rainwater can first enter the groove 140, and then enter the gap 30 through the drain hole 150 and be discharged outside the electrical cabinet. During this process, the groove 140 also plays the role of rainwater diversion, ensuring that rainwater will not flow back into the electrical cabinet, making full use of the flange 130 structure on the door panel 100; and since part of the structure of the diversion component 300 is hidden inside the groove 140, when viewed from the outside, the surface of the door panel 100 remains simple and flat, taking into account both drainage effect and aesthetics.

[0040] In another embodiment of this application, the guide component 300 is an integrally formed structure, which can be integrally bent. First, the integrally formed structure enhances the overall strength of the guide component 300. Since the guide component 300 needs to withstand certain water pressure and external impact during use, the integrally formed structure can avoid the risk of leakage caused by the breakage of various connections of the guide component 300. In addition, the integrally formed structure also simplifies the production process of the guide component 300 and improves production efficiency and product quality.

[0041] To further improve the waterproof effect, such as Figure 5 and Figure 11 As shown, the guide plate 300 also includes a third bending plate 330, which is located on the main board 310 near the louver 200 and extends away from the bottom plate 21 (the third bending plate 330 can extend parallel to the door panel 100). This creates a relative bending angle between the third bending plate 330 and the main board 310. When rainwater drips onto the main board 310 and splashes due to impact, the third bending plate 330 can block the splashing water, preventing it from re-entering the electrical cabinet's interior space, thereby further improving the electrical cabinet's waterproof performance.

[0042] This application also provides a door assembly 10, which includes: a door panel 100 having a first side 160 and a second side 170 opposite to each other, the door panel 100 having an air vent 110 connecting the first side 160 and the second side 170; a louver 200 installed at the air vent 110; and a guide member 300 disposed at the lower part of the louver 200, the guide member 300 being spaced apart from the door panel 100 and forming an upper opening channel 320. The specific structures of the door panel 100, the louver 200, and the guide member 300 can be referred to in the above embodiments, and will not be described in detail here.

[0043] like Figure 1 and Figure 6The door assembly 10 is applied to an electrical cabinet, which has an opening for personnel and equipment to enter and exit. A door panel 100 can be installed at the opening to open and close it. The door panel 100 is designed with a first side 160 and a second side 170 facing each other. The first side 160 faces the inside of the electrical cabinet, and the second side 170 faces the outside of the equipment. The door panel 100 is provided with an air vent 110, which connects the first side 160 and the second side 170, allowing external airflow to enter the electrical cabinet for heat dissipation. The air vent 110 is equipped with a louver 200 to prevent external rainwater and foreign objects from entering the equipment and reduce the risk of moisture damage or short circuits. To reduce the possibility of water accumulation inside the electrical cabinet, a guide 300 is provided on the first side 160 of the door panel 100. The guide 300 is located on the side of the louver 200 near the bottom plate. The guide 300 and the door panel 100 are spaced apart and enclosed to form a channel 320 with an upper opening. This channel can collect rainwater on the first side 160 of the door panel 100 and the louver 200, preventing rainwater from splashing into the electrical cabinet and avoiding short circuits or corrosion of the internal electrical equipment.

[0044] In another embodiment, the door panel 100 has a bottom near the ground, where a gap 30 can be provided. The gap 30 connects the first side 160 and the second side 170, and is also connected to the aforementioned channel 320. The guide member 300 can collect water dripping from the first side 160 and the louver 200 of the door panel 100, guide it through the channel 320 to the gap 30, and finally drain it to the second side 170. In this way, water accumulation at the bottom of the electrical cabinet can be avoided, further reducing the risk of moisture and short circuits in the equipment inside the electrical cabinet. In addition, the way the gap 30 is formed can refer to the above embodiments. Since this electrical cabinet adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0045] The above description is merely an exemplary embodiment of this application and does not limit the patent scope of this application. Any equivalent structural transformations made based on the technical concept of this application and the contents of the specification and drawings of this application, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this application.

Claims

1. An electrical cabinet, characterized in that, include: The cabinet has side panels and a bottom panel; A door panel is provided on the side panel. The door panel has a first side and a second side facing each other. The door panel is provided with an air vent, which connects the first side and the second side. Venetian blinds are installed at the air vent. A flow guide is provided at the lower part of the louver, and the flow guide is spaced apart from the door panel and together form a channel with an upper opening.

2. The electrical cabinet as described in claim 1, characterized in that, The opening of the channel covers the projection area of ​​the louvers on the base plate.

3. The electrical cabinet as described in claim 2, characterized in that, In a first direction, the width of the opening at the top of the channel is a, and the width of the louver is b. In a second direction different from the first direction, the width of the opening at the top of the channel is d, and the width of the louver is e. Where a≥b; and / or, d≥e.

4. The electrical cabinet as described in claim 3, characterized in that, In the first direction, the distance from the end of the opening at the top of the channel away from the door panel to the end of the louver away from the door panel is c, where 5mm≤c≤20mm.

5. The electrical cabinet as described in claim 3, characterized in that, In the first direction, the projection of the guide member on the door panel at least partially overlaps with the projection of the louver on the door panel.

6. The electrical cabinet as described in claim 1, characterized in that, A gap is provided between the base plate and the door panel, the gap connecting the first side and the second side, and the channel communicating with the gap.

7. The electrical cabinet as described in claim 6, characterized in that, The gap is formed between the door panel and the flow guide; or... The gap is formed between the base plate and the door panel.

8. The electrical cabinet as described in claim 7, characterized in that, The flow guide includes a main board, which is disposed on the first side and spaced apart from the door panel to form the channel; wherein the main board is fixedly connected to the base plate; or; the main board is fixedly connected to the door panel.

9. The electrical cabinet as described in claim 8, characterized in that, The motherboard has a first bending plate at one end near the base plate. The first bending plate is connected to the base plate, and the door panel cooperates with the first bending plate to form the gap.

10. The electrical cabinet as described in claim 9, characterized in that, The first bending plate includes: The first bent body is attached to and fixedly connected to the base plate; The second bending body is fixedly connected to one end of the first bending body near the second side, and the second bending body extends away from the bottom plate; The third bending body is fixedly connected to the end of the second bending body away from the first bending body, and the third bending body extends toward the first side, and the third bending body cooperates with the door panel to form the gap.

11. The electrical cabinet as described in claim 8, characterized in that, The main board has a second bending plate on at least one side along the second direction. The second bending plate is fixedly connected to the door panel, and the door panel and the bottom plate cooperate to form the gap.

12. The electrical cabinet as described in claim 11, characterized in that, The door panel includes a front panel and a flange located on the front panel near the bottom plate. The flange is bent and connected to the front panel, and the flange and the front panel together form a groove with an upper opening. A drainage hole is provided on the side of the groove near the bottom plate, and the drainage hole communicates with the gap. The main panel extends into the groove.

13. The electrical cabinet as described in any one of claims 8 to 12, characterized in that, The main board has a third bending plate at one end near the louver, and the third bending plate extends away from the base plate.

14. A door assembly, characterized in that, include: A door panel has a first side and a second side facing each other, and the door panel is provided with an air vent that connects the first side and the second side. Venetian blinds are installed at the air vent. A flow guide is provided at the lower part of the louver, and the flow guide is spaced apart from the door body and together form a channel with an upper opening.

15. The door assembly as claimed in claim 14, characterized in that, The bottom of the door panel has a gap that connects the first side and the second side, and the gap is connected to the channel.

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