An electrical panel

By using fastener connections and a design that involves folding and pressing the edges, combined with water guide channels, seals, and rainproof components, the problem of gaps caused by easy deformation when connecting the electrical cabinet door frame to the cabinet body is solved, thus improving the safety and waterproof performance of the electrical equipment.

CN224502674UActive Publication Date: 2026-07-14ZHUZHOU NAT ENG RES CENT OF CONVERTERS

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHUZHOU NAT ENG RES CENT OF CONVERTERS
Filing Date
2025-06-18
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

The existing electrical cabinet door frame and cabinet body are prone to gaps due to deformation, which can easily allow rainwater to flow in and affect equipment safety.

Method used

Fasteners are used to connect the door frame to the main body, and a folded, pressed edge is set on the outer edge of the door frame. Combined with water guide channels, seals and rain shields, the connection strength and sealing performance are enhanced to prevent rainwater from entering.

Benefits of technology

It effectively reduces the gap between the door frame and the main body, improves the safety and waterproof performance of electrical equipment in rainy weather, and enhances the rainproof capability of the electrical cabinet.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224502674U_ABST
    Figure CN224502674U_ABST
Patent Text Reader

Abstract

The utility model relates to an electrical screen cabinet relates to electrical cabinet technical field, the utility model discloses an electrical screen cabinet, include: main part, and the main part has the containing cavity and with the containing cavity intercommunication's opening, door frame, and the door frame includes with the first connecting portion of main part link, and the first connecting portion surrounds the opening a week, and the door frame is linked with the main part through fastener, and cabinet door, and cabinet door is rotatively connected with the main part, and cabinet door can rotate to with door frame and is pasted, to close the opening, wherein, the outer edge of first connecting portion forms has the pressure dead edge that turns over to the side away from the main part, and the pressure dead edge is pasted with the outside of main part. The strength of first connecting portion is improved through the pressure dead edge that turns over, to avoid the uneven area that first connecting portion occurs deformation in the process of transporting door frame. Can make door frame keep the design shape, will not produce the gap of too big between door frame and main part, improved the security of electrical screen cabinet under the weather of rain.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

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

[0002] Current electrical control cabinets generally consist of three parts: the cabinet body, the door frame, and the door panel. The cabinet body houses the electrical equipment, the door frame is located at the opening of the cabinet body, and the door panel is used to close the opening of the cabinet body.

[0003] In some implementations, to reduce the manufacturing difficulty of electrical control cabinets, the door frame and cabinet body are manufactured separately and connected by bolts or riveting. Compared to molding or welding the cabinet body and door frame into one piece, this reduces the installation difficulty between the door frame and cabinet body.

[0004] However, bolted or riveted connections only connect a portion of the door frame to the cabinet. This can easily lead to deformation of the door frame's mounting surface, preventing a tight fit and creating gaps between the door frame and the cabinet. When it rains, rainwater can easily seep into the cabinet through these gaps, potentially causing malfunctions in the electrical equipment within the electrical control cabinet. Utility Model Content

[0005] This utility model provides an electrical control cabinet to reduce the risk of rainwater flowing in between the door frame and the frame.

[0006] This utility model provides an electrical cabinet, comprising: a main body having a receiving cavity and an opening communicating with the receiving cavity; a door frame including a first connecting part connected to the main body, the first connecting part surrounding the opening, and the door frame being connected to the main body by fasteners; and a cabinet door rotatably connected to the main body, and the cabinet door being rotatable to fit against the door frame to close the opening; wherein, the outer edge of the first connecting part forms a pressed edge that folds away from the main body, and the pressed edge fits against the outer side of the main body.

[0007] In one embodiment, a mounting hole is provided at the pressed edge, through which a fastener passes and connects to the main body to fix the door frame to the main body.

[0008] In one embodiment, the door frame further includes a frame body, the side of the frame body facing the main body being connected to a first connecting portion, and the side of the frame body facing the cabinet door being connected to a second connecting portion. The first connecting portion, the frame body, and the second connecting portion form a water guide channel located on the outside of the door frame, and the water guide channel surrounds the door frame.

[0009] In one embodiment, a seal is connected to the side of the second connection facing the cabinet door, and the seal surrounds the opening; when the cabinet door is rotated to close the opening, the cabinet door elastically compresses the seal.

[0010] In one embodiment, a rain shelter is installed on the top of the main body, a portion of which extends out of the main body to form a rain shelter eave, and the door frame is located below the rain shelter eave.

[0011] In one embodiment, the eaves have a rain-guiding slope that gradually moves away from the door frame from top to bottom.

[0012] In one embodiment, the rain shelter is mounted on top of the main body by a self-adhesive screw, and a sealing gasket is provided between the self-adhesive screw and the rain shelter. The self-adhesive screw is inserted into the main body and presses the sealing gasket and the rain shelter onto the top of the main body.

[0013] In one embodiment, the rain shelter is formed by bending a one-piece molded sheet metal part.

[0014] In one embodiment, a linkage lock assembly is installed on the cabinet door to lock the cabinet door to the main body. When the cabinet door is locked to the main body, the cabinet door elastically compresses the seal between the cabinet door and the door frame.

[0015] In one embodiment, the cabinet door is provided with an upper locking groove and a lower locking groove. The linkage lock assembly includes an upper locking block and a lower locking block. When locked, the upper locking block is inserted upward into the upper locking groove, and the lower locking block is inserted downward into the lower locking groove. The top of the upper locking block and the bottom of the lower locking block are provided with guide ramps to guide the upper locking block into the upper locking groove and guide the lower locking block into the lower locking groove.

[0016] Compared with existing technologies, the advantages of this utility model are as follows: Since the door frame is connected to the main body via fasteners, the installation difficulty between the door frame and the main body is reduced compared to welding. Furthermore, because the door frame is connected to the main body via a first connecting part with a pressed edge on its outer edge, the pressed edge, formed by folding, increases the strength of the first connecting part, thus preventing deformation and uneven areas during door frame transportation. Because the door frame maintains its designed shape, it can fit better with the main body, avoiding excessive gaps between the door frame and the main body compared to a deformed door frame, thereby improving the safety of the electrical cabinet in rainy weather. Attached Figure Description

[0017] The present invention will be described in more detail below based on embodiments and with reference to the accompanying drawings.

[0018] Figure 1 This is a three-dimensional structural diagram of the electrical cabinet in an embodiment of this utility model;

[0019] Figure 2 This is a three-dimensional structural diagram of the door frame in an embodiment of this utility model;

[0020] Figure 3This is a partially enlarged structural diagram of the upper left corner of the door frame in an embodiment of this utility model;

[0021] Figure 4 This is a three-dimensional structural diagram of the structure connecting the upper connecting rod and the upper locking block in an embodiment of this utility model;

[0022] Figure 5 This is a three-dimensional structural diagram of the locking block in an embodiment of this utility model;

[0023] Figure 6 This is a partial cross-sectional structural diagram of the connection between the door frame and the main body in an embodiment of this utility model;

[0024] Figure 7 This is a partial cross-sectional view of the connection between the rain shelter and the main body in an embodiment of this utility model.

[0025] Figure label:

[0026] 100. Main body;

[0027] 200, Door frame; 210, First connecting part; 211, Pressed edge; 212, Mounting hole; 220, Frame body; 230, Second connecting part; 240, Water guide channel;

[0028] 300. Cabinet doors;

[0029] 400. Rain shelter; 410. Rain eaves; 411. Rain guide slope;

[0030] 500. Linkage lock assembly; 501. Lock cylinder; 502. Upper linkage; 503. Lower linkage; 504. Upper locking block; 505. Lower locking block; 506. Guide ramp;

[0031] 601. Self-extruding screw; 602. Sealing gasket. Detailed Implementation

[0032] The present invention will be further described below with reference to the accompanying drawings.

[0033] See Figures 1 to 3 This application provides an electrical control cabinet, comprising a main body 100, a door frame 200, and a cabinet door 300 connected to the main body 100. The door frame 200 is provided with a first connecting portion 210, which is connected to the main body 100 by fasteners. Compared to welding the door frame 200 to the main body 100, fastener connection is simpler, eliminates the need for a welding gun, and reduces the number of connection points. The fasteners can be rivets, which can be easily connected to the main body 100 using a rivet gun. Alternatively, the fasteners can be bolts or screws, using a threaded connection to achieve the connection between the door frame 200 and the main body 100.

[0034] The main body 100 has a receiving cavity and an opening communicating with the receiving cavity, through which electrical equipment can be placed into the receiving cavity or removed from the receiving cavity.

[0035] In this application, the outer edge of the first connecting portion 210 is formed with a pressed edge 211 that folds towards the side away from the main body 100 (folding direction is the same). Figure 3 As indicated by arrow A), the pressed edge 211 is fitted to the outer surface of the main body 100. Because the first connecting part 210 is equipped with the pressed edge 211, the thickness at the edge is increased, significantly improving the strength of the first connecting part 210 and preventing deformation of the door frame 200 during transportation due to its thinness. Since the pressed edge 211 structure prevents deformation of the door frame 200, it avoids excessive gaps between the door frame 200 and the main body 100 caused by deformation. Compared to the previous door frame 200 structure installed with fasteners, this reduces the risk of rainwater flowing into the internal cavity of the main body 100 through the gap between the door frame 200 and the main body 100, improving the safety of electrical equipment within the cavity.

[0036] In this application, the four outer edges of the first connecting portion 210 are all folded to form pressed edges 211, and the four pressed edges 211 are connected end to end, surrounding the opening to better improve the strength of the first connecting portion 210. Figure 3 As shown, in this application, the outer edge of the first connecting portion 210 is folded outward toward the side away from the main body 100, forming a pressed edge 211 that fits against the side of the first connecting portion 210 facing the second connecting portion 230. Compared to folding inward (toward the side of the first connecting portion 210 facing the main body 100) to form the pressed edge 211, folding the edge of the first connecting portion 210 outward (toward the side of the first connecting portion 210 away from the main body 100) keeps the side of the first connecting portion 210 facing the main body 100 flat, avoiding the formation of a protrusion on the inner side of the first connecting portion 210 due to the pressed edge 211 formed by folding.

[0037] In other words, the electrical cabinet of this application not only reduces the installation difficulty of the door frame 200 compared with welding, but also reduces the gap between the door frame 200 and the main body 100, thereby improving the safety of electrical equipment.

[0038] See Figure 3As shown, in some implementations, a mounting hole 212 is provided at the pressed edge 211. Fasteners pass through the mounting hole 212 and connect to the main body 100 to fix the door frame 200 to the main body 100. Since the mounting hole 212 is located at the thicker pressed edge 211, compared to other locations on the first connecting part 210, the thicker pressed edge 211 allows for higher strength even with the mounting hole 212. This prevents deformation of the first connecting part 210 due to the forming of the mounting hole 212 at the first connecting part 210.

[0039] See Figure 3 As shown, in some implementations, the mounting hole 212 is a stepped hole, with the larger end of the mounting hole 212 facing away from the main body 100. The stepped hole structure can be used to achieve axial positioning of fasteners such as bolts or rivets.

[0040] See Figures 1 to 3 As shown, in some implementations, the door frame 200 also includes a frame body 220. The side of the frame body 220 facing the main body 100 is connected to the first connecting part 210, and the side of the frame body 220 facing the cabinet door 300 is connected to the second connecting part 230. The first connecting part 210, the frame body 220, and the second connecting part 230 form a water guide channel 240 located on the outside of the door frame 200, and the water guide channel 240 surrounds the door frame 200. That is to say, the first connecting part 210 not only serves to position the door frame 200, but also forms part of the water guide channel 240. When rainwater falls on the door frame 200, there is a high probability that it will fall into the water guide channel 240 formed by the door frame 200. Since the water guide channel 240 is located on the outside of the door frame 200 and surrounds the door frame 200, the water guide channel 240 can be used to guide the rainwater above the door frame 200 to the lower side of the door frame 200. To prevent rainwater from accumulating on the door frame 200 and overflowing into the receiving cavity of the main body 100.

[0041] See Figures 1 to 3 As shown, in some implementations, a sealing element is connected to the side of the second connecting part 230 facing the cabinet door 300. The sealing element surrounds the opening, and when the cabinet door 300 rotates to close the opening, the cabinet door 300 elastically compresses the sealing element. Using the sealing element surrounding the opening, the second connecting part 230 and the cabinet door 300 can be sealed when the cabinet door 300 is closed, thereby preventing moisture from flowing into the receiving cavity of the main body 100 from the gap between the cabinet door 300 and the second connecting part 230, thus improving the safety performance of the electrical cabinet in this application. It is understood that the sealing element here can be a rubber sealing ring. Utilizing the elastic deformation of the sealing element, it can accommodate assembly errors between the cabinet door 300 and the door frame 200, ensuring a tight fit between the door frame 200, the sealing element, and the cabinet door 300, enhancing the rainproof performance of the electrical cabinet.

[0042] See Figure 1 as well as Figure 6 As shown, in some implementations, a rain shelter 400 is installed on the top of the main body 100, with a portion of the rain shelter 400 extending out of the main body 100 to form a rain shelter eave 410, and the door frame 200 located below the rain shelter eave 410. By installing the rain shelter 400 on the top of the main body 100, rainwater can be blocked during rain, preventing rainwater from falling directly onto the door frame 200, thereby reducing the probability of rainwater flowing into the receiving cavity of the main body 100 from the gap between the door frame 200 and the main body 100, and improving the safety of the equipment in the main body 100.

[0043] See Figure 1 as well as Figure 6 As shown, in some implementations, the rain shelter 400 has a rain-guiding slope 411, which gradually moves away from the door frame 200 from top to bottom. The rain-guiding slope 411 can better guide rainwater and improve the rain shelter effect of the rain shelter 400.

[0044] See Figure 1 , Figure 6 as well as Figure 7 As shown, in some implementations, the rain shield 400 is mounted on the top of the main body 100 by a self-adjusting screw 601, and a sealing gasket 602 is provided between the self-adjusting screw 601 and the rain shield 400. The self-adjusting screw 601 is inserted into the main body 100, and the sealing gasket 602 and the rain shield 400 are pressed tightly against the top of the main body 100.

[0045] The self-clamping screw 601 has a diameter that gradually increases from the initial shank diameter to the core diameter, providing a very strong self-locking function. It is well-suited for reinforcing metal materials. When the self-clamping screw 601 is inserted into the main body 100 made of metal, it will compress the wall of the threaded hole, thereby achieving a tight fit between the self-clamping screw 601 and the threaded hole.

[0046] Since a sealing gasket 602 is provided between the self-extruding screw 601 and the rain cover 400, when the self-extruding screw 601 is locked to the main body 100, the rain cover 400 and the sealing gasket 602 can be pressed against the top of the main body 100, so as to achieve a stable connection of the rain cover 400.

[0047] In some implementations, the rain shelter 400 is formed by bending an integrally molded sheet metal part. Compared with the rain shelter 400 formed by welding, bending does not cause gaps in the rain shelter 400 and has a better rain shelter effect.

[0048] See Figure 1 , Figure 4 as well as Figure 5As shown, in some implementations, a linkage lock assembly 500 is installed on the cabinet door 300. The linkage lock assembly 500 is used to lock the cabinet door 300 to the main body 100. When the cabinet door 300 is locked to the main body 100, the cabinet door 300 elastically compresses the seal set between the cabinet door 300 and the door frame 200.

[0049] When locked, the seal can be elastically compressed to eliminate the gap between the cabinet door 300 and the door frame 200, preventing moisture from flowing into the main body 100 through the gap between the cabinet door 300 and the door frame 200, thus improving the safety of accommodating strong electrical equipment.

[0050] In some implementations, the cabinet door 300 is provided with an upper locking groove (not shown in the figure) and a lower locking groove. The linkage lock assembly 500 includes an upper locking block 504 and a lower locking block 505. When locked, the upper locking block 504 is inserted upward into the upper locking groove, and the lower locking block 505 is inserted downward into the lower locking groove. The top of the upper locking block 504 and the bottom of the lower locking block 505 are both provided with guide slopes 506 to guide the upper locking block 504 into the upper locking groove and guide the lower locking groove into the lower locking groove.

[0051] See Figure 1 , Figure 4 and Figure 5 As shown, the linkage lock assembly 500 includes a lock cylinder 501, an upper linkage 502, and a lower linkage 503. The upper linkage 502 and the lower linkage 503 are respectively connected to the opposite ends of the lock cylinder 501. When the lock cylinder 501 is locked, the lock cylinder 501 will drive the upper linkage 502 to move upward. Since a guide slope 506 is provided on the top of the upper locking block 504, when the upper locking block 504 contacts the groove wall of the upper locking groove, the guide slope 506 can guide the upper locking block 504 to move closer to the main body 100 in the front-back direction, so that the upper locking block 504 can fit more tightly against the seal provided on the outside of the second connecting part 230.

[0052] Similarly, when the lock cylinder 501 is locked, the lock cylinder 501 will simultaneously drive the lower connecting rod 503 to move downward. Because a guide slope 506 is provided at the bottom of the lower locking block 505, when the lower locking block 505 extends downward into the lower locking groove, the guide slope 506 can guide the lower locking block 505 to move closer to the main body 100 in the front-back direction, so that the lower locking block 505 can fit more tightly against the seal on the outside of the second connecting part 230.

[0053] Since the linkage lock assembly 500 has an upper locking block 504 and a lower locking block 505, it can lock the upper side of the cabinet door 300 using the upper locking block 504 and lock the lower side of the cabinet door 300 using the lower locking block 505. Compared with locking the cabinet door 300 on one side, it improves the locking effect of the cabinet door 300.

[0054] When the lock cylinder 501 is unlocked, it will drive the upper connecting rod 502 to move downward and simultaneously drive the lower connecting rod 503 to move upward, thereby causing the upper locking block 504 to disengage from the upper locking groove and the lower locking block 505 to disengage from the lower locking groove. The cabinet door 300 can then be opened to adjust or repair the equipment in the receiving cavity.

[0055] Although the present invention has been described with reference to preferred embodiments, various modifications can be made thereto and components can be replaced with equivalents without departing from the scope of the invention. In particular, the technical features mentioned in the various embodiments can be combined in any manner, provided there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. An electrical control cabinet, characterized in that, It includes: The main body has a receiving cavity and an opening communicating with the receiving cavity; A door frame, the door frame including a first connecting portion connected to the body, the first connecting portion surrounding the opening, the door frame being connected to the body by fasteners; and The cabinet door is rotatably connected to the main body, and the cabinet door can be rotated to fit against the door frame to close the opening; The outer edge of the first connecting portion has a pressed edge that folds away from the main body and fits against the outer surface of the main body.

2. The electrical control cabinet according to claim 1, characterized in that, The pressed edge is provided with a mounting hole, and the fastener passes through the mounting hole and is connected to the main body to fix the door frame to the main body.

3. The electrical control cabinet according to claim 1, characterized in that, The door frame also includes a frame body, the side of the frame body facing the main body is connected to the first connecting part, and the side of the frame body facing the cabinet door is connected to a second connecting part. The first connecting part, the frame body and the second connecting part form a water guide channel located on the outside of the door frame, and the water guide channel surrounds the door frame.

4. The electrical control cabinet according to claim 3, characterized in that, The second connecting part is connected to a sealing element on the side facing the cabinet door, and the sealing element surrounds the opening. When the cabinet door rotates to close the opening, the cabinet door elastically compresses the sealing element.

5. The electrical cabinet according to any one of claims 1-4, characterized in that, A rain shelter is installed on the top of the main body, and a portion of the rain shelter extends out of the main body to form a rain shelter eave. The door frame is located below the rain shelter eave.

6. The electrical cabinet according to claim 5, characterized in that, The rain shelter has a rain-guiding slope that gradually moves away from the door frame from top to bottom.

7. The electrical cabinet according to claim 5, characterized in that, The rain shelter is installed on the top of the main body by a self-adhesive screw, and a sealing gasket is provided between the self-adhesive screw and the rain shelter. The self-adhesive screw is inserted into the main body and presses the sealing gasket and the rain shelter tightly on the top of the main body.

8. The electrical control cabinet according to claim 5, characterized in that, The rain shelter is formed by bending an integrally molded sheet metal part.

9. The electrical cabinet according to claim 4, characterized in that, A linkage lock assembly is installed on the cabinet door. The linkage lock assembly is used to lock the cabinet door to the main body. When the cabinet door is locked to the main body, the cabinet door will elastically compress the seal between the cabinet door and the door frame.

10. The electrical control cabinet according to claim 9, characterized in that, The cabinet door is provided with an upper locking groove and a lower locking groove. The linkage lock assembly includes an upper locking block and a lower locking block. When locked, the upper locking block is inserted upward into the upper locking groove, and the lower locking block is inserted downward into the lower locking groove. The top of the upper locking block and the bottom of the lower locking block are provided with guide slopes to guide the upper locking block into the upper locking groove and the lower locking block into the lower locking groove.