Modular structure of an electrical box easy to process and assemble

Abstract

The utility model discloses an electrical box modular structure easy to process and assemble, including the electrical box main part that constitutes by bottom shell subassembly and upper shell subassembly, bottom shell subassembly includes bottom plate, and is arranged in the side frame of two pairs of sides of bottom plate, is equipped with interface panel on the other side of bottom plate, and the side frame, interface panel once vertical bending formation three -sided enclosure state to the center of bottom plate, and the side frame, interface panel all are seted up with fixed hole, and upper shell subassembly includes top plate, and is arranged in the inner edge of two sides of top plate, and with the side frame corresponds, is equipped with the plug -in hole plate on the other side of top plate, is equipped with the ear of folding on the opposite side of plug -in hole plate, is equipped with the through -hole on the ear of folding, and the through -hole corresponds with each fixed hole on interface panel, and the ear of folding, inner edge is once vertical bending structure to the center of top plate.

Description

Technical Field

[0001] This utility model relates to the field of electrical boxes, and in particular to a modular structure for electrical boxes that is easy to process and assemble. Background Technology

[0002] An electrical box is a device typically used to install, store, protect, and control various electrical components. It possesses basic functions such as fireproofing, waterproofing, dustproofing, and isolation, ensuring the normal operation and safety of circuits. It is an indispensable component in modern homes and industrial production. Electrical boxes are widely used in various equipment, such as electronic instruments, communication systems, automatic control systems, machine tools, generators, and so on. Electrical boxes are also common in homes; installing them in kitchens, bathrooms, bedrooms, and other areas ensures electrical safety and prevents problems such as moisture damage and electrical leakage.

[0003] Current electrical boxes are manufactured and assembled from four separate parts: the upper shell, lower shell, rear shell, and front shell. Because these are manufactured individually, they involve numerous processes and equipment, resulting in a long production cycle, low efficiency, and material waste due to the need for plate cutting. During assembly, these panels must be aligned one by one and secured with multiple fasteners. Therefore, current modular electrical boxes not only suffer from cumbersome manufacturing processes and low assembly efficiency, but also exhibit weak structural strength after assembly. Utility Model Content

[0004] The present invention aims to at least partially solve one of the technical problems in the related technologies. Therefore, the main objective of this invention is to provide a modular electrical box structure that is easy to process and assemble, thereby addressing the problems of cumbersome manufacturing and assembly processes, significant material waste, and low structural strength in existing electrical box technologies.

[0005] To achieve the above objectives, this utility model provides a modular electrical box structure that is easy to process and assemble, comprising an electrical box body composed of a bottom shell assembly and an upper shell assembly.

[0006] The bottom shell assembly includes a bottom plate and side frames disposed on two opposite sides of the bottom plate. An interface panel is provided on the other side of the bottom plate. The side frames and the interface panel are bent vertically towards the center of the bottom plate to form a three-sided enclosure. Fixing holes are provided on both the side frames and the interface panel.

[0007] The upper shell assembly includes a top plate and inner edges disposed on both sides of the top plate and corresponding to the side frames. A plug plate is provided on the other side of the top plate, and a folded lug is provided on the opposite side of the plug plate. A through hole is provided on the folded lug, and the through hole corresponds to each of the fixing holes on the interface panel. The folded lug and the inner edge are a structure that is bent vertically towards the center of the top plate.

[0008] As a further embodiment of this utility model, the inner edge and the top plate are connected by a limiting edge. The limiting edge is a folded plate structure in which one side of the top plate is bent vertically and then bent once towards the middle of the top plate. After assembly, the inner edge is closely attached to and hidden under the side frame. The height of the limiting edge is higher than that of the inner edge and is flush with the height of the side frame.

[0009] As a further improvement of this utility model, the number of fixing holes opened on the interface panel and the side frame is at least three.

[0010] As a further embodiment of this utility model, the number of each through hole opened on the inner edge and one side of the top plate corresponds to the number of fixing holes.

[0011] As a further improvement of this utility model, spare holes are provided at the corners of both the bottom plate and the top plate.

[0012] As a further improvement of this utility model, all the fixing holes are screw holes.

[0013] The beneficial effects of this utility model are as follows:

[0014] The bottom shell assembly of this technical solution includes a bottom plate, side frames, and interface panels, which are formed by a single vertical bend into a three-sided enclosure. The upper shell assembly includes a top plate, inner edges, a plug plate, and folding lugs, which are integrated through a single vertical bend. The through holes on the folding lugs precisely correspond to the fixing holes on the interface panels. During assembly, only the upper shell assembly needs to be closed and tightened with screws in one go, eliminating the need for step-by-step alignment. This significantly simplifies the processing steps (reducing equipment investment and cutting waste) and improves assembly efficiency. At the same time, the integrated bending structure significantly enhances the overall rigidity and stability. The overall structure possesses the core advantages of easy processing, easy assembly, and high strength, achieving a comprehensive benefit of low cost and high reliability. Attached Figure Description

[0015] To more clearly illustrate the technical solutions 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 the technical solutions 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.

[0016] Figure 1 This is a schematic diagram of the overall structure of the electrical box body in this utility model.

[0017] Figure 2 This is a preliminary disassembly diagram of the bottom shell assembly and the upper shell assembly in this utility model.

[0018] Figure 3 This is a schematic diagram of the components of the bottom shell assembly in this utility model.

[0019] Figure 4 This is a schematic diagram of the components of the upper shell assembly in this utility model.

[0020] Figure 5 This is a schematic diagram of the assembled limiting edge and side frame of this utility model.

[0021] Figure 6 This is a side view of the bottom shell assembly and the upper shell assembly before and after assembly in this utility model.

[0022] Figure 7 This is a schematic diagram of the bottom shell assembly and the upper shell assembly before and after assembly in this utility model from another side.

[0023] Figure 8 This is a schematic diagram showing the setup of the spare hole in this utility model.

[0024] label name label name 1 Electrical box body 110 roof 10 Bottom shell assembly 111 inner edge 100 base plate 1110 Limiting edge 101 Side frame 112 Orifice plate 102 Interface panel 113 Folded Ear 103 Fixing hole 114 Through hole 11 Upper shell assembly 12 12 spare hole Detailed Implementation

[0025] as follows:

[0026] Please see the appendix Figure 1-8 ,

[0027] Unlike the existing electrical boxes which use a split structure, the current electrical boxes consist of four separate parts (upper shell, lower shell, rear shell, and front shell). They need to be made one by one during processing, which is cumbersome, requires many pieces of equipment, has a long production cycle, and is inefficient. Furthermore, the cutting process results in a lot of material waste. During assembly, each board needs to be manually aligned and fixed with multiple fasteners, which is complicated, time-consuming, and inefficient. Moreover, the assembled electrical box has insufficient structural strength and is prone to loosening.

[0028] The bottom shell assembly (10) of this solution mainly includes a bottom plate (100), a side frame (101), and an interface panel (102). These components are formed into a three-sided enclosure by a single vertical bend, eliminating the need for separate processing of multiple plates. The upper shell assembly (11) includes a top plate (110), an inner edge (111), a plug plate (112), and a folding lug (113). It is also integrated by a single vertical bend structure. The through hole (114) on the folding lug (113) corresponds to the fixing hole (103) on the interface panel (102). During assembly, the upper shell assembly (11) is simply placed on top of the bottom shell assembly (10), and the fixing hole (103) and through hole (114) are aligned before being tightened with screws or other fasteners in one go. There is no need to align the components one by one, which greatly simplifies the assembly operation and improves efficiency.

[0029] The integrated bent bottom shell assembly (10) and top shell assembly (11) reduce processing steps and equipment requirements, shorten production cycles, and reduce material waste. The precise alignment of the fixing holes (103) and through holes (114) during assembly ensures rapid positioning and secure connection, unlike the multi-step fixing required in a split structure. Furthermore, the integrated bending creates a three-sided enclosure and an overall structure with inner edges (111) and folded ears (113), enhancing the overall strength of the electrical box and avoiding the problem of easy loosening in split structures. This achieves a comprehensive effect of easy processing, easy assembly, and high strength. The entire solution, through modular design, makes the electrical box more efficient and reliable in manufacturing and assembly, saving costs and resources.

[0030] Reference Appendix Figure 4 , 5 In a preferred embodiment of this utility model, the solution forms a limiting edge (1110) by performing a second vertical bend on the edge of the top plate (110). That is, the first bend establishes a vertical reference plane, and the second bend extends to the middle of the top plate (110) to form a precise stepped structure. This allows the inner edge (111) to automatically fit tightly against and hide under the side frame (101) during assembly, forming a layered reinforcement effect. At the same time, the height of the limiting edge (1110) is completely flush with the side frame (101), forming a continuous support plane and preventing the side frame (101) from extending too far in. This completely eliminates the error of manual alignment. During installation, the upper shell assembly (11) is placed on the lower shell assembly (10), and the automatic fitting of the limiting edge (1110) and the side frame (101) immediately completes the positioning, greatly improving the assembly efficiency.

[0031] More importantly, the tight overlap between the inner edge (111) and the side frame (101) significantly enhances the lateral resistance to deformation, while the complete support surface formed by the flush top surface of the limiting edge (1110) and the side frame (101) effectively disperses external pressure and avoids the problem of board warping caused by single-point stress, thus improving the overall structural strength and stability.

[0032] Reference Appendix Figure 2 , 3 4. A preferred embodiment of this utility model: This solution ensures that the interface panel (102) and the side frame (101) are provided with at least 3 fixing holes (103), which are precisely corresponding to the through holes (114) of the upper shell assembly (11) (the number of through holes (114) opened on the inner edge (111) and the top plate (110) side are all corresponding to the fixing holes (103). During assembly, multi-point synchronous alignment and fastening can be quickly achieved, which greatly simplifies the operation and improves efficiency.

[0033] In addition, multiple fixing holes (103) are evenly distributed on the edge of the enclosure structure, which can effectively disperse external impacts or loads, avoid warping or failure of the plate caused by single-point force, enhance the overall rigidity and durability of the box, and further solve the problems of cumbersome assembly and insufficient strength of the existing technology, making the electrical box easier to assemble and more stable and reliable in the long term (especially for long-term operation under harsh outdoor conditions).

[0034] Reference Appendix Figure 8 In a preferred embodiment of this utility model, the solution also pre-sets standardized spare holes (12) at the four corners of the base plate (100) and the top plate (110), achieving a highly expandable feature. Waterproof connectors or lead wire devices (or fixing, assembling and fixing external equipment) can be directly installed using these pre-made holes without additional tools or cutting operations, thus improving expansion efficiency. The spare holes (12) are located in the corner area, and the preset position avoids the main load-bearing area and the bending weak area. While ensuring the overall rigidity after the hole is opened, it eliminates the risk of edge cracks or deformation caused by traditional on-site hole opening.

[0035] Reference Appendix Figure 3-5 A preferred embodiment of this utility model: This technical solution can adopt a standardized screw hole structure (such as common M3 / M4 threads). During processing, conventional stamping or machine-controlled equipment can be used to complete the punching and thread forming of the sheet metal in one go, without post-processing, reducing equipment investment and process complexity. At the same time, the screw hole is directly compatible with standard screws widely used in the market. During assembly, only screwing in the screw can achieve fast and accurate fastening, avoiding the tool dependence and human error of traditional methods.

[0036] The above are merely preferred embodiments of the present utility model and do not limit the patent scope of the present utility model. Any equivalent structural transformations made using the contents of the present utility model specification and drawings under the concept of the present utility model, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A modular structure for an electrical box that is easy to process and assemble, characterized in that, include The main body of the electrical box consists of a bottom shell assembly and an upper shell assembly. The bottom shell assembly includes a bottom plate and side frames disposed on two opposite sides of the bottom plate. An interface panel is provided on the other side of the bottom plate. The side frames and the interface panel are bent vertically towards the center of the bottom plate to form a three-sided enclosure. Fixing holes are provided on both the side frames and the interface panel. The upper shell assembly includes a top plate and inner edges disposed on both sides of the top plate and corresponding to the side frames. A plug plate is provided on the other side of the top plate, and a folded lug is provided on the opposite side of the plug plate. A through hole is provided on the folded lug, and the through hole corresponds to each of the fixing holes on the interface panel. The folded lug and the inner edge are a structure that is bent vertically towards the center of the top plate.

2. The modular electrical box structure that is easy to process and assemble according to claim 1, characterized in that, The inner edge and the top plate are connected by a limiting edge. The limiting edge is a folded plate structure in which one side of the top plate is bent vertically and then bent once towards the middle of the top plate. After assembly, the inner edge is close to and hidden under the side frame. The height of the limiting edge is higher than the inner edge and is flush with the height of the side frame.

3. The modular electrical box structure that is easy to process and assemble according to claim 1, characterized in that, The number of fixing holes on the interface panel and side frame is at least three.

4. The modular electrical box structure that is easy to process and assemble according to claim 3, characterized in that, The number of through holes opened on the inner edge and one side of the top plate corresponds to the number of fixing holes.

5. The modular electrical box structure that is easy to process and assemble according to claim 1, characterized in that, Spare holes are provided at the corners of both the bottom plate and the top plate.

6. The modular electrical box structure that is easy to process and assemble according to claim 1, characterized in that, All of the aforementioned fixing holes are screw holes.

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