Anti-creeping insulation protection structure for high and low voltage power distribution cabinet shell

By using a combination of galvanized steel sheets and insulating sheets on the casing of high and low voltage distribution cabinets, the problem of easy damage to the casing terminals is solved, fireproof and dustproof effects are achieved, the maintenance process is simplified, the whole replacement is avoided, and the service life is improved.

CN224123713UActive Publication Date: 2026-04-14PINGDINGSHAN HANSHENG ELECTRIC CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
PINGDINGSHAN HANSHENG ELECTRIC CO LTD
Filing Date
2025-05-12
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

The existing high and low voltage switchgear enclosures are prone to fire at the connection points due to engineering plastic contacts such as polycarbonate and epoxy resin, which can lead to damage and require the replacement of the entire module, thus affecting the leakage protection and insulation performance.

Method used

The protective structure, which combines galvanized steel sheets and insulating sheets, includes insulating and dustproof components and leakage-proof insulating components. The combination of galvanized steel sheets and insulating sheets provides fire and dust protection for high and low voltage power distribution terminal blocks. When damaged, only the terminal block needs to be disassembled for replacement, without the need to replace the entire housing module.

Benefits of technology

It achieves fire and dust protection for the casing terminals of high and low voltage distribution cabinets, avoids the need for complete replacement, improves the flexibility and durability of the protective structure, and extends the service life.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the related technical field of high-voltage and low-voltage power distribution cabinet shells, in particular to an anti-creeping insulation protection structure for a high-voltage and low-voltage power distribution cabinet shell, which comprises a power distribution cabinet shell, a high-voltage and low-voltage power distribution plug end plate, a galvanized plate and an assembling component, according to the utility model, the flexible connection cover can be installed on the insulating plate and the galvanized plate in a protective manner, and can carry out fire prevention and dust prevention on engineering plastics such as polycarbonate, epoxy resin and the like on the connection end of the high-low voltage power distribution cabinet shell, and when the connection end of the high-low voltage power distribution cabinet shell is damaged, the connection end of the high-low voltage power distribution cabinet shell is not damaged, and the connection end of the high-low voltage power distribution cabinet shell is not damaged. During installation, the high-low voltage power distribution plug end plate only needs to be detached, installation is carried out through the high-low voltage power distribution cabinet shell connecting end on the insulating plate and the galvanized plate, an overall connecting end module of the high-low voltage power distribution cabinet shell does not need to be replaced, and one-time installation can be carried out through the high-low voltage power distribution cabinet shell connecting end on the insulating plate and the galvanized plate.
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Description

Technical Field

[0001] This utility model relates to the technical field of high and low voltage distribution cabinet housings, specifically a leakage-proof insulation protection structure for high and low voltage distribution cabinet housings. Background Technology

[0002] The enclosure of high and low voltage distribution cabinets provides physical protection for internal electrical components such as circuit breakers, contactors, fuses, and transformers, preventing dust, moisture, and foreign objects from entering the cabinet and avoiding damage such as corrosion and short circuits. It also prevents personnel from accidentally touching live parts, ensuring personal safety. Support function: As a mounting carrier for electrical components, it provides fixation and support for various electrical equipment and lines, ensuring that they maintain the correct position and connection during operation, making the internal layout of the distribution cabinet neat and orderly, and facilitating installation, maintenance, and repair.

[0003] The existing high and low voltage distribution cabinet housing terminals are made of engineering plastics such as polycarbonate and epoxy resin, which are prone to contact ignition and damage to the high and low voltage distribution cabinet housing terminals. This requires the replacement of the entire high and low voltage distribution cabinet housing terminal module, resulting in secondary connections at the high and low voltage distribution cabinet housing terminals, which affects the leakage current insulation protection effect. Utility Model Content

[0004] The purpose of this utility model is to provide a leakage-proof insulation protection structure for the housing of high and low voltage distribution cabinets, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A leakage-proof insulation protection structure for a high- and low-voltage distribution cabinet enclosure includes a distribution cabinet enclosure, high- and low-voltage distribution terminal blocks, galvanized steel sheets, and an assembly assembly. The galvanized steel sheets are threadedly fastened to mounting points on the distribution cabinet enclosure. High- and low-voltage distribution terminal blocks penetrate the mounting points on the galvanized steel sheets. The assembly assembly has snap-fit ​​points for the high- and low-voltage distribution terminal blocks and the galvanized steel sheets. The structure also includes...

[0007] An insulating and dustproof assembly is installed on the high and low voltage power distribution terminal block;

[0008] Leakage protection insulation components are installed on the high and low voltage power distribution terminal blocks;

[0009] The distribution cabinet shell has a rainproof top fixed at the welded joints, a mounting plate threaded through the fastening joints on the galvanized plate, limit plates at the fixing joints on both sides of the high and low voltage distribution terminal blocks, a hinge installed at the sliding joints on the distribution cabinet shell, and a sealing door at the flip-up joints of the hinges.

[0010] The high and low voltage distribution cabinet housing uses a leakage-proof insulation protection structure as described above: the high and low voltage distribution terminal blocks are installed on the distribution cabinet housing and the galvanized plate through a limiting plate.

[0011] The high and low voltage distribution cabinet housing uses a leakage-proof insulation protection structure as described above: the sealed door is slidably flipped and locked onto the distribution cabinet housing via a hinge.

[0012] The above-mentioned high and low voltage distribution cabinet housing uses a leakage-proof insulation protection structure: the insulation and dustproof component includes a positioning threaded sleeve fixedly connected to a galvanized plate, an insulating plate is provided at the mounting point on the positioning threaded sleeve, a flexible connection cover is installed at the connection point on the insulating plate, a terminal block is provided at the fixing point on the high and low voltage distribution terminal plate, and a threaded through post is passed through the mounting point on the high and low voltage distribution terminal plate and the positioning threaded sleeve.

[0013] The high and low voltage distribution cabinet housing uses a leakage-proof insulation protection structure as described above: the flexible connection cover is supported and installed on the galvanized plate by threaded through-posts.

[0014] The leakage protection insulation structure for the high and low voltage distribution cabinet housing as described above: the leakage protection insulation component includes a locking cover installed on the terminal block, and the mounting points on the terminal block and the locking cover have limit holes.

[0015] The leakage protection insulation structure for the high and low voltage distribution cabinet housing as described above includes a limiting bolt penetrating the terminal block, and a bolt cap is installed at the fastening point of the limiting bolt.

[0016] Compared with the prior art, the beneficial effects of this utility model are: the flexible connection cover can protect the installation on the insulating plate and galvanized plate; the flexible connection cover can provide fire and dust protection for the engineering plastics such as polycarbonate and epoxy resin at the high and low voltage distribution cabinet shell connection points; when the high and low voltage distribution cabinet shell connection points are damaged, only the high and low voltage distribution terminal block needs to be disassembled, and then installed through the high and low voltage distribution cabinet shell connection points on the insulating plate and galvanized plate, without the need to replace the entire high and low voltage distribution cabinet shell connection module, and can be installed in one go through the high and low voltage distribution cabinet shell connection points on the insulating plate and galvanized plate.

[0017] When the terminal block on the high and low voltage distribution cabinet housing is damaged, the user should first disconnect the power to the high and low voltage distribution cabinet housing, then disassemble the terminal block in modules. It is not necessary to replace the entire high and low voltage distribution cabinet housing terminal module. Then, the terminal block can be installed through other terminal blocks on the high and low voltage distribution plug board. There is no need to reconnect the high and low voltage distribution cabinet housing terminals, and there is no need to disassemble and install the leakage protection insulation structure. Attached Figure Description

[0018] Figure 1This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a schematic diagram of the structure of the insulating and dustproof component of this utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the leakage-proof insulation component of this utility model;

[0021] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0022] In the diagram: 1. Distribution cabinet shell; 2. Rainproof roof; 3. High and low voltage distribution terminal block; 4. Limit plate; 5. Sealing door; 6. Mounting plate; 7. Hinge; 8. Galvanized sheet; 9. Positioning threaded sleeve; 10. Insulating plate; 11. Flexible connection cover; 12. Terminal assembly plate; 13. Threaded through post; 14. Clamping cover; 15. Limit hole; 16. Bolt cap; 17. Limit bolt. Detailed Implementation

[0023] Various exemplary embodiments, features, and aspects of this application will now be described in detail with reference to the accompanying drawings. The same reference numerals in the drawings denote elements that have the same or similar functions. Although various aspects of the embodiments are shown in the drawings, they are not necessarily drawn to scale unless specifically indicated otherwise.

[0024] The term “exemplary” as used herein means “serving as an example, embodiment, or illustration.” Any embodiment illustrated herein as “exemplary” is not necessarily to be construed as superior to or better than other embodiments.

[0025] Furthermore, to better illustrate this application, numerous specific details are provided in the following detailed embodiments. Those skilled in the art should understand that this application can be implemented even without certain specific details. In some instances, methods, means, and elements well-known to those skilled in the art have not been described in detail in order to highlight the main points of this application.

[0026] Please see Figures 1-4 A leakage-proof insulation protection structure for high and low voltage distribution cabinet housing is proposed, including distribution cabinet housing 1, high and low voltage distribution terminal plates 3, galvanized plates 8, and assembly components.

[0027] The mounting points on the distribution cabinet housing 1 are threaded with galvanized sheet 8, and high and low voltage distribution terminal plates 3 pass through the mounting points on the galvanized sheet 8. The snap-fit ​​points on the assembly components are equipped with high and low voltage distribution terminal plates 3 and galvanized sheet 8. Insulation and dustproof components are installed on the high and low voltage distribution terminal plates 3. Leakage protection insulation components are installed on the high and low voltage distribution terminal plates 3.

[0028] The galvanized sheet 8 is threaded and fastened inside the distribution cabinet shell 1, so that the high and low voltage distribution terminal block 3 is installed on the galvanized sheet 8. The surface of the galvanized sheet 8 is coated with a layer of aluminum-zinc alloy, which has excellent corrosion resistance and oxidation resistance, and can effectively extend the service life of the cabinet.

[0029] Among them, the welded joint on the distribution cabinet shell 1 is fixed with a rainproof top 2, the fastening joint on the galvanized plate 8 is threaded with an installation plate 6, the high and low voltage distribution plug plate 3 is fixed with limit plates 4 on both sides, the sliding joint on the distribution cabinet shell 1 is installed with a hinge 7, and the flip-up part on the hinge 7 is provided with a sealing door 5.

[0030] In this embodiment, the rainproof top 2 is fixed to the top of the distribution cabinet shell 1 by welding. The sealing door 5 is installed on the distribution cabinet shell 1 by sliding and flipping through the hinge 7. The mounting plate 6 is installed on the galvanized plate 8 for the layout and installation of the high and low voltage distribution cabinet. When the high and low voltage distribution terminal plate 3 is installed on the galvanized plate 8 as a whole, the limiting plate 4 is installed on both sides of the high and low voltage distribution terminal plate 3 for fixation.

[0031] Preferably, the high and low voltage power distribution terminal block 3 is installed on the power distribution cabinet shell 1 and the galvanized plate 8 through the limiting plate 4. The high and low voltage power distribution terminal block 3 is installed on the power distribution cabinet shell 1 as a whole through the limiting plate 4. The high and low voltage power distribution terminal block 3 is internally fastened to the galvanized plate 8 by threads, and the galvanized plate 8 provides insulation protection.

[0032] Preferably, the sealing door 5 is slidably flipped and locked onto the distribution cabinet shell 1 by the hinge 7. The user can manually push the sealing door 5, and the sealing door 5 is slidably flipped and locked onto the distribution cabinet shell 1 by the hinge 7, so as to seal the distribution cabinet shell 1.

[0033] Please refer to Figure 1 and Figure 2 In this embodiment, the insulating and dustproof component includes a positioning threaded sleeve 9 fixedly connected to the galvanized plate 8, an insulating plate 10 is provided at the mounting position on the positioning threaded sleeve 9, a flexible connection cover 11 is installed at the connection position on the insulating plate 10, a terminal assembly plate 12 is provided at the fixing position on the high and low voltage power distribution plug plate 3, and a threaded through post 13 passes through the mounting positions on the high and low voltage power distribution plug plate 3 and the positioning threaded sleeve 9.

[0034] The high and low voltage distribution terminal block 3 is fastened to the insulating plate 10 by threaded through post 13. The insulating plate 10 is made of insulating partition material to isolate the live parts from personnel or objects that may come into contact with them. The insulating barrier is usually installed at the door of the distribution cabinet or in the operating area to prevent personnel from accidentally touching the live parts. The flexible connection cover 11 can be folded and fitted between the high and low voltage distribution terminal block 3 and the insulating plate 10 for protection. The flexible connection cover 11 has fireproof and dustproof effects to prevent dust from entering between the high and low voltage distribution terminal block 3 and the insulating plate 10 and causing static electricity. The insulating plate 10 is installed on the galvanized plate 8 by thread, which is conducive to the layout and installation of the high and low voltage distribution cabinet.

[0035] Preferably, the flexible connector cover 11 is supported and installed on the galvanized plate 8 by threaded through post 13. The threaded through post 13 can support the high and low voltage distribution terminal block 3 and the insulating plate 10. The flexible connector cover 11 provides fire and dust protection. Users can install the high and low voltage distribution cabinet terminal equipment on the insulating plate 10 and the galvanized plate 8, and then connect it to the high and low voltage distribution terminal block 3. The flexible connector cover 11 can protect the insulating plate 10 and the galvanized plate 8. The flexible connector cover 11 can provide fire and dust protection for the polycarbonate, epoxy resin and other engineering plastics at the high and low voltage distribution cabinet housing terminals. When the high and low voltage distribution cabinet housing terminals are damaged, it is only necessary to disassemble the high and low voltage distribution terminal block 3 and install it through the high and low voltage distribution cabinet housing terminals on the insulating plate 10 and the galvanized plate 8. It is not necessary to replace the entire high and low voltage distribution cabinet housing terminal module. The high and low voltage distribution cabinet housing terminals on the insulating plate 10 and the galvanized plate 8 can be installed in one go.

[0036] Please refer to Figure 3 and Figure 4 In this embodiment, the leakage protection insulation component includes a locking cover 14 installed on the terminal assembly plate 12, and a limiting hole 15 is provided at the mounting position on the terminal assembly plate 12 and the locking cover 14.

[0037] The locking cover 14 is installed on the terminal block 12. The locking cover 14 is slidably installed inside the high and low voltage power distribution terminal block 3 through the terminal block 12. The terminal block 12 is installed on the limiting hole 15 for fastening. The terminal block 12 and the locking cover 14 are used for external connection installation of the high and low voltage power distribution cabinet terminals.

[0038] Please refer to Figure 3 and Figure 4 In this embodiment, the leakage protection insulation component also includes a limiting bolt 17 that penetrates the terminal assembly plate 12, and a bolt cap 16 is installed at the fastening point of the limiting bolt 17.

[0039] When the locking cover 14 is slidably installed inside the high and low voltage distribution terminal block 3 via the terminal assembly plate 12, the terminal assembly plate 12 is correspondingly installed on the limiting hole 15. The limiting bolt 17 is then passed through the terminal assembly plate 12 and the limiting hole 15, and the bolt cap 16 is then tightened onto the terminal assembly plate 12. When the terminal assembly plate 12 on the high and low voltage distribution cabinet housing is damaged, the user first disconnects the power to the high and low voltage distribution cabinet housing, then disassembles the terminal assembly plate 12 modularly. It is not necessary to replace the entire terminal module of the high and low voltage distribution cabinet housing. Then, it is installed through other terminal assembly plates 12 on the high and low voltage distribution terminal block 3. It is not necessary to reconnect the high and low voltage distribution cabinet housing terminals, and it is not necessary to disassemble and install the leakage protection insulation structure.

[0040] As can be seen from the above, during use, the sealing door 5 is slidably flipped and installed on the distribution cabinet shell 1 via the hinge 7, and the mounting plate 6 is installed on the galvanized plate 8 for the layout and installation of high and low voltage distribution cabinets. The high and low voltage distribution terminal block 3 is installed as a whole on the galvanized plate 8. When the terminal block 12 on the high and low voltage distribution cabinet shell is damaged, the user first disconnects the power to the high and low voltage distribution cabinet shell, then disassembles the terminal block 12 modularly. It is not necessary to replace the high and low voltage distribution cabinet shell terminal module as a whole. Then, the other terminal blocks 12 on the high and low voltage distribution terminal block 3 are used for installation.

[0041] Users can install the high and low voltage distribution cabinet terminal equipment on the insulating plate 10 and the galvanized plate 8, and then connect it to the high and low voltage distribution terminal block 3. The flexible connection cover 11 can protect the insulating plate 10 and the galvanized plate 8. The flexible connection cover 11 can provide fire and dust protection for the polycarbonate, epoxy resin and other engineering plastics at the high and low voltage distribution cabinet housing terminals. When the high and low voltage distribution cabinet housing terminals are damaged, it is only necessary to remove the high and low voltage distribution terminal block 3 and then install it through the high and low voltage distribution cabinet housing terminals on the insulating plate 10 and the galvanized plate 8.

[0042] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0043] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A leakage-proof insulation protection structure for a high and low voltage distribution cabinet housing, comprising a distribution cabinet housing (1), high and low voltage distribution terminal plates (3), galvanized plates (8), and an assembly assembly, wherein the galvanized plates (8) are threadedly fastened to the mounting points on the distribution cabinet housing (1), and the high and low voltage distribution terminal plates (3) penetrate the mounting points on the galvanized plates (8), and the high and low voltage distribution terminal plates (3) and the galvanized plates (8) are provided at the snap-fit ​​points on the assembly assembly, characterized in that: It also includes settings, Insulating and dustproof components are installed on the high and low voltage power distribution terminal block (3); Leakage protection insulation components are installed on the high and low voltage power distribution terminal block (3); Among them, the welded joint of the distribution cabinet shell (1) is fixed with a rainproof top (2), the fastening joint of the galvanized plate (8) is threaded with an installation plate (6), the high and low voltage distribution plug plate (3) is fixed with limit plates (4) on both sides, the sliding joint of the distribution cabinet shell (1) is installed with a hinge (7), and the flip-up part of the hinge (7) is provided with a sealing door (5).

2. The leakage-proof insulation protection structure for high and low voltage distribution cabinet housing according to claim 1, characterized in that, The high and low voltage power distribution terminal block (3) is installed on the power distribution cabinet shell (1) and the galvanized plate (8) by a limiting plate (4).

3. The leakage-proof insulation protection structure for high and low voltage distribution cabinet housing according to claim 1, characterized in that, The sealing door (5) is slidably flipped and locked onto the power distribution cabinet shell (1) by a hinge (7).

4. The leakage-proof insulation protection structure for high and low voltage distribution cabinet housing according to claim 1, characterized in that, The insulating and dustproof assembly includes a positioning threaded sleeve (9) fixedly connected to a galvanized plate (8), an insulating plate (10) is provided at the mounting point of the positioning threaded sleeve (9), a flexible connection cover (11) is installed at the connection point of the insulating plate (10), a terminal assembly plate (12) is provided at the fixing point of the high and low voltage power distribution terminal plate (3), and a threaded through post (13) passes through the high and low voltage power distribution terminal plate (3) and the mounting point of the positioning threaded sleeve (9).

5. The leakage-proof insulation protection structure for high and low voltage distribution cabinet housing according to claim 4, characterized in that, The flexible connector cover (11) is supported and installed on the galvanized sheet (8) by a threaded through post (13).

6. The leakage-proof insulation protection structure for high and low voltage distribution cabinet housing according to claim 1, characterized in that, The leakage protection insulation component includes a locking cover (14) installed on the terminal assembly plate (12), and the mounting locations on the terminal assembly plate (12) and the locking cover (14) have limiting holes (15).

7. The leakage-proof insulation protection structure for high and low voltage distribution cabinet housing according to claim 6, characterized in that, The leakage protection insulation assembly also includes a limiting bolt (17) that runs through the terminal block (12), and a bolt cap (16) is installed on the fastening part of the limiting bolt (17).