A high-strength electrical cabinet

Abstract

This utility model discloses an electrical cabinet with high structural strength, relating to the field of electrical cabinet technology, overcoming defects such as easy deformation in the lock hole area of ​​the cover plate. The annular reinforcing structure includes blocking ridges and outer ring ridges. The blocking ridges are arranged along the edge of the cover plate, and the outer ring ridges are located inside the blocking ridges and have at least two layers. Each layer of outer ring ridges surrounds the lock hole at different distances, forming a groove between adjacent outer ring ridges. Multiple spaced strip-shaped first reinforcing ridges are arranged within the grooves, and each first reinforcing ridge integrally connects two adjacent layers of outer ring ridges. A multi-layered surrounding support network is formed around the lock hole. The connection between the C-shaped outer ring ridges and the blocking ridges can transfer the stress in the lock hole area to the edge of the cover plate, dispersing localized stress. The multiple outer ring ridges are connected by the first reinforcing ridges, forming an integral mechanical support, effectively solving the problem of easy deformation caused by the flat plate design around the lock hole in the prior art, and improving the structural strength of the lock hole area.

Description

Technical Field

[0001] This utility model relates to the field of electrical cabinet technology, specifically an electrical cabinet with high structural strength. Background Technology

[0002] Electrical cabinets, as commonly used protection and control devices in power systems and electrical equipment, are widely used in industrial, building, and civil power distribution fields. Among them, plastic electrical cabinets are widely used in small and medium power distribution systems due to their good insulation performance, corrosion resistance, and cost advantages. However, with the increase in the size of electrical cabinets, especially large plastic electrical cabinets, the problem of insufficient structural strength has become increasingly prominent in actual use.

[0003] In existing technologies, electrical cabinets typically consist of a cabinet body and an openable cover plate with keyholes for installing locks. However, traditional cover plate structures often feature a flat design around the keyholes. During long-term use, the stress generated by repeated opening and closing of the lock can easily lead to localized deformation or even cracking around the keyholes, causing the locks to become loose and not properly locked. This not only affects the stability of the locking mechanism but also compromises the seal between the lock and the cover plate, allowing dust, moisture, and other impurities to enter the cabinet and threaten the safety of electrical components. This problem is particularly pronounced in large-size plastic electrical cabinets, where the larger cover area makes it more difficult to distribute localized stress in the keyhole area, accelerating structural fatigue and damage, and significantly increasing the risk of deformation.

[0004] Meanwhile, the structural strength of the cabinet edges is also insufficient to meet practical needs. Traditional cabinet edges are mostly straight or simply folded, lacking effective bending and torsional resistance designs. When the cabinet size is large, the edges are prone to tearing or deformation when subjected to external forces, such as collisions, stacking pressure, or handling stress. This is especially true when using high-rigidity engineering plastics, which increase material brittleness and reduce impact resistance, further exacerbating the risk of structural damage.

[0005] To address these issues, some existing products attempt to add simple reinforcing ribs to the cover plate or cabinet. However, these reinforcing structures are mostly arranged in a single direction or locally, failing to form a systematic mechanical support network. The overall reinforcement effect is limited, and the design is not optimized for the key stress point of the lock installation area. Furthermore, the connections between the reinforcing structures are weak, failing to effectively distribute and transfer stress, making it difficult to meet the long-term stability requirements under high-intensity usage environments. Utility Model Content

[0006] The purpose of this utility model is to overcome the defects of existing technologies, such as easy deformation of the cover plate lock hole area, easy tearing of the cabinet edge, and insufficient overall rigidity. This utility model provides an electrical cabinet with high structural strength.

[0007] The technical solution of this utility model includes a cabinet and a cover plate. A lock is installed on the cover plate, and a lock hole is provided at the lock position. The cover plate surrounding the lock hole has an annular reinforcing structure. The annular reinforcing structure includes a blocking ridge and an outer ring ridge. The blocking ridge is set along the edge of the cover plate. The outer ring ridge is located inside the blocking ridge and has at least two layers. The outer ring ridge forms a C-shape, and the opening of the C-shape is connected to the blocking ridge. Each layer of outer ring ridges surrounds the lock hole at different distances to form a groove between adjacent outer ring ridges. Multiple spaced strip-shaped first reinforcing ridges are provided in the groove. Each first reinforcing ridge is integrally connected to two adjacent layers of outer ring ridges.

[0008] By adopting the above technical solution, a multi-layered surrounding support network can be formed around the keyhole by setting an annular reinforcing structure around the keyhole. The connection between the C-shaped outer ring protrusion and the blocking protrusion can transfer the stress in the keyhole area to the edge of the cover plate, dispersing the local stress. The multi-layered outer ring protrusions are connected by the first reinforcing ridge to form an integral mechanical support, effectively solving the problem of easy deformation caused by the flat plate design around the keyhole in the prior art, improving the structural strength of the keyhole area, effectively preventing the keyhole from deforming and cracking due to frequent operation of the lock or external impact, and improving the stability of the lock installation and the reliability of the locking seal.

[0009] In one possible design, a connecting rib is provided between adjacent keyholes to connect the outermost outer ring protrusions of the two, and the connecting ribs are arranged at intervals along the direction of the blocking protrusions; a plurality of strip-shaped second reinforcing ribs are provided between the connecting ribs and the blocking protrusions at intervals.

[0010] With the above design, when there are multiple lock holes, the connecting ridge between adjacent lock holes can connect the outermost ring ridge of each lock hole into a whole. In conjunction with the second reinforcing ridge between the connecting ridge and the blocking ridge, the force of multiple lock holes can be transferred and distributed to the edge of the cover plate, further strengthening the overall rigidity of the edge area of ​​the cover plate. This structure effectively connects the reinforcing structures of multiple lock hole areas to form a continuous edge reinforcing band, improving the overall bending and torsional resistance of the cover plate. It is especially suitable for large-size electrical cabinets with multi-locking point locks, ensuring that the force of each locking point is uniform and preventing the cover plate from warping or tearing at the edges during long-term use.

[0011] In one possible design, the edge of the cabinet protrudes laterally to form a side platform, and the edge of the side platform has an upwardly protruding side ridge. There are multiple spaced strip-shaped third reinforcing ridges between the side ridge and the edge of the cabinet, and each third reinforcing ridge protrudes upward from the side platform; the lock abuts against the bottom of the side platform when locked.

[0012] With the above design, the side platform structure of the cabinet edge, together with the side ridge and the third reinforcing ridge, can form a reinforced support at the edge of the cabinet. The side platform increases the stress area of ​​the cabinet edge, and the side ridge and the third reinforcing ridge can improve the bending resistance of the side platform. When the lock is locked, it is pressed against the bottom of the side platform, so that the locking force is distributed to the edge of the cabinet through the side platform, avoiding the edge of the cabinet from tearing due to excessive local stress. This effectively solves the problem of easy deformation and tearing of the cabinet edge in the existing technology, while improving the stability of the locked state.

[0013] In one possible design, the bottom of the side platform has multiple spaced triangular edges, one side of each triangular edge being integrally connected to the cabinet body.

[0014] By adopting the above design and utilizing the stability of the triangular structure, the connection strength between the side platform and the cabinet is enhanced, and the force borne by the side platform can be transferred to the cabinet more evenly, preventing the connection between the side platform and the cabinet from breaking due to excessive force, and further improving the tear resistance of the cabinet edges and the overall structural stability.

[0015] In one possible design, the cabinet edges are rectangular, with one pair of opposite sides of the side panel protruding inwards from the inside of the cabinet and another pair of opposite sides protruding outwards from the outside of the cabinet.

[0016] With the above design, the protruding opposite sides can serve as gripping parts, which not only ensures the rationality of the cabinet edge structure, but also makes it convenient for people to grip and move. The force exerted when gripping is distributed to the side platform and cabinet edge through the protruding opposite sides, avoiding deformation or damage to the cabinet edge due to concentrated force during the handling process, thus improving the handling convenience and operational safety of the electrical cabinet, and is especially suitable for large-sized and heavy cabinets.

[0017] In one possible design, the outer ring protrusions are in two or three layers.

[0018] By adopting the above design, the structural complexity or material waste caused by too many layers can be avoided while ensuring the reinforcement effect around the keyhole.

[0019] In one possible design, the first reinforcing ribs are arranged along the radial direction of the keyhole.

[0020] With the above design, the first reinforcing ridge can directly transmit the stress around the keyhole radially, so that the radial force generated by the opening and closing of the lock can be quickly dispersed to the outer ring ridge, improving the force transmission efficiency between adjacent outer ring ridges, enhancing the stability of the interlayer connection, and further optimizing the tensile, compressive and fatigue resistance of the keyhole area.

[0021] In one possible design, the height of the outer ring protrusion increases radially outward along the keyhole.

[0022] The above design creates a height gradient structure, which makes the inner ridge near the keyhole lower in height to avoid interfering with the installation and operation of the lock, while the outer ridge is higher in height to provide stronger edge support. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the external structure of this utility model;

[0024] Figure 2 This is a schematic diagram of the external structure of this utility model;

[0025] Figure 3 For the present utility model Figure 2 A magnified view of a section at point A in the middle;

[0026] Figure 4 This is a perspective view of the cover plate of this utility model in cross-section.

[0027] Figure 5 This is a schematic diagram of the cabinet structure of this utility model;

[0028] Figure 6 This is a perspective view of the cabinet body of this utility model in cross-section;

[0029] Among them, 1. Cabinet body; 11. Side platform; 12. Side edge; 13. Third reinforcing edge; 14. Triangular edge; 2. Cover plate; 21. Lock hole; 22. Blocking protrusion; 23. Outer ring protrusion; 24. Groove; 25. First reinforcing edge; 26. Connecting edge; 27. Second reinforcing edge; 3. Lock. Detailed Implementation

[0030] like Figures 1 to 4 The diagram shows a high-strength electrical cabinet, whose overall structure includes a cabinet body 1 and a cover plate 2. The cover plate 2 can be opened and closed relative to the cabinet body 1 to protect the electrical components inside the cabinet body 1. A lock 3 is installed on the cover plate 2, and a lock hole 21 is provided at the position of the lock 3. Through the cooperation of the lock 3 and the cabinet body 1, the cover plate 2 can be stably locked onto the cabinet body 1.

[0031] Regarding the cover plate 2, an annular reinforcing structure surrounds the lock hole 21 on the cover plate 2. This annular reinforcing structure is the main part that enhances the structural strength of the lock hole 21 area of ​​the cover plate 2. The annular reinforcing structure includes a blocking ridge 22 and an outer ring ridge 23. The blocking ridge 22 is arranged along the edge of the cover plate 2, which can guide the stress in the lock hole 21 area to the edge of the cover plate 2, avoiding stress accumulation in a localized area. The outer ring ridge 23 is located inside the blocking ridge 22 and has at least two layers, preferably two or three layers in this embodiment. The outer ring ridge 23 is C-shaped, and the opening of the C-shape is connected to the blocking ridge 22, forming a closed annular support structure. This structure makes the outer ring ridge 23 and the blocking ridge 22 form a multi-layered surrounding support network, further enhancing the force transmission effect.

[0032] Each outer ring protrusion 23 surrounds the keyhole 21 at different distances, forming an annular groove 24 between adjacent layers. Within this groove 24, multiple spaced strip-shaped first reinforcing ribs 25 are integrally formed between adjacent outer ring protrusions 23, extending radially along the keyhole 21. This arrangement efficiently transfers the force borne by the inner outer ring protrusion 23 to the outer outer ring protrusion 23, enhancing the overall stress-bearing capacity of the annular reinforcement structure and preventing localized deformation or cracking. Simultaneously, the height of the outer ring protrusions 23 increases radially outward from the keyhole 21, with the inner outer ring protrusions 23 closer to the keyhole 21 being lower in height and the outer outer ring protrusions 23 farther from the keyhole 21 being higher. This height gradient design guides stress to gradually disperse from the inner to the outer layers, preventing stress concentration on any single outer ring protrusion 23 layer. In this way, the installation space for lock 3 is guaranteed, the support strength of the outer structure is enhanced, and the stress distribution path is optimized.

[0033] When the cover plate 2 has multiple keyholes 21, a connecting ridge 26 is provided between adjacent keyholes 21. This connecting ridge 26 connects the outermost outer ring protrusions 23 of the two keyhole 21 areas and is spaced apart along the extension direction of the blocking protrusions 22. Between the connecting ridge 26 and the blocking protrusions 22, multiple spaced strip-shaped second reinforcing ridges 27 are also provided. The second reinforcing ridges 27 are similar to the first reinforcing ridges 25, being strip-shaped and evenly distributed. The connecting ridge 26 can connect the force-bearing systems of the multiple keyholes 21. Combined with the second reinforcing ridges 27, the force can be further transmitted to the blocking protrusions 22, forming a continuous reinforcing band at the edge of the cover plate 2. This improves the overall bending and torsional resistance of the cover plate 2, prevents edge warping or tearing, and thus enhances the overall structural strength of the cover plate 2 in the case of multiple keyholes 21.

[0034] like Figures 5 to 6As shown, in terms of the cabinet body 1 structure, the edge of the cabinet body 1 protrudes laterally to form a side platform 11. The side platform 11 provides a support platform for the cabinet body 1 to lock with the cover plate 2, forming a larger force-bearing area at the edge of the cabinet body 1, which can effectively disperse external forces. The edge of the side platform 11 has an upwardly protruding side ridge 12, which is used to limit the closed position of the cover plate 2 and enhance the edge strength. Between the side ridge 12 and the edge of the cabinet body 1, there are multiple spaced strip-shaped third reinforcing ridges 13. Each third reinforcing ridge 13 protrudes upward from the side platform 11 and is evenly distributed along the edge direction of the cabinet body 1. The cooperation of the side ridge 12 and the third reinforcing ridge 13 improves the bending resistance of the side platform 11. When the lock 3 is locked, its lock tongue or lock rod abuts against the bottom of the side platform 11, so that the force generated during locking can be transmitted through the side platform 11 to the third reinforcing ridge 13 structure, thereby effectively dispersing the locking force and preventing the edge of the cabinet body 1 from deforming or breaking due to excessive local stress.

[0035] The bottom of the side platform 11 is provided with multiple spaced triangular ridges 14, one side of each triangular ridge 14 being integrally connected to the cabinet body 1 to form a bottom support structure. The triangular ridges 14 have excellent compressive strength, which can further enhance the load-bearing capacity of the side platform 11 and prevent plastic deformation or breakage of the bottom of the side platform 11 during long-term use.

[0036] The opening edge of cabinet 1 is rectangular. One pair of opposite sides of side panel 11 protrudes inward from cabinet 1, and the other pair of opposite sides protrudes outward from cabinet 1. The outward-protruding opposite sides can be used for hand gripping and lifting. During handling, the force applied by the hand can be evenly transmitted to the side panel 11 and the edge of cabinet 1 through the outward-protruding opposite sides, avoiding deformation or tearing of the edge of cabinet 1 due to concentrated force during handling.

[0037] All reinforcing structures, including blocking ridges 22, outer ring ridges 23, first reinforcing ridges 25, second reinforcing ridges 27, connecting ridges 26, third reinforcing ridges 13, and triangular ridges 14, are integrally formed with the cover plate 2 or cabinet 1 through injection molding or extrusion processes, requiring no additional assembly. The structure is stable and reliable, with low manufacturing costs, making it suitable for large-scale production.

[0038] In summary, this utility model improves the overall structural strength, deformation resistance, and ease of use of the electrical cabinet by setting a multi-layer annular reinforcing structure in the lock hole 21 area of ​​the cover plate 2, setting a side platform 11 with reinforcing ribs at the edge of the cabinet body 1, and combining it with a user-friendly grip design. It is especially suitable for large-size plastic electrical cabinets and effectively solves the problems of easy deformation of the lock hole 21, easy tearing of the edge of the cabinet body 1, and unstable locking in the prior art.

Claims

1. An electrical cabinet with high structural strength, comprising a cabinet body (1) and a cover plate (2), wherein a lock (3) is installed on the cover plate (2), and the lock (3) has a lock hole (21) at its position, characterized in that: The cover plate (2) surrounding the lock hole (21) has an annular reinforcing structure that surrounds the lock hole (21). The annular reinforcing structure includes a blocking ridge (22) and an outer ring ridge (23). The blocking ridge (22) is arranged along the edge of the cover plate (2). The outer ring ridge (23) is located inside the blocking ridge (22) and has at least two layers. The outer ring ridge (23) forms a C-shape and the opening of the C-shape is connected to the blocking ridge (22). Each layer of outer ring ridge (23) surrounds the lock hole (21) at different distances to form a groove (24) between adjacent outer ring ridges (23). Multiple spaced strip-shaped first reinforcing ridges (25) are arranged in the groove (24). Each first reinforcing ridge (25) is integrally connected to two adjacent layers of outer ring ridges (23).

2. The high-strength electrical cabinet according to claim 1, characterized in that: A connecting rib (26) is provided between adjacent keyholes (21) to connect the outermost outer ring protrusion (23) of both, and the connecting rib (26) is arranged at intervals along the direction of the blocking protrusion (22); a plurality of strip-shaped second reinforcing ribs (27) are provided between the connecting rib (26) and the blocking protrusion (22).

3. The high-strength electrical cabinet according to claim 1 or 2, characterized in that: The edge of the cabinet (1) protrudes laterally to form a side platform (11). The edge of the side platform (11) has an upwardly protruding side ridge (12). There are multiple spaced strip-shaped third reinforcing ridges (13) between the side ridge (12) and the edge of the cabinet (1). Each third reinforcing ridge (13) protrudes upward from the side platform (11). The lock (3) abuts against the bottom of the side platform (11) in the locked state.

4. The high-strength electrical cabinet according to claim 3, characterized in that: The bottom of the side platform (11) is provided with a number of spaced triangular edges (14), one side of each triangular edge (14) is integrally connected to the cabinet (1).

5. The high-strength electrical cabinet according to claim 3, characterized in that: The cabinet (1) has a rectangular edge. One pair of opposite sides of the side platform (11) protrudes into the cabinet (1), and the other pair of opposite sides protrudes outward from the cabinet (1).

6. The high-strength electrical cabinet according to claim 1 or 2, characterized in that: The outer ring protrusion (23) has two or three layers.

7. The high-strength electrical cabinet according to claim 1 or 2, characterized in that: The first reinforcing ribs (25) are all arranged along the radial direction of the lock hole (21).

8. The high-strength electrical cabinet according to claim 1 or 2, characterized in that: The height of the outer ring protrusion (23) increases radially outward along the lock hole (21).

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