High-voltage outlet box structure

Abstract

The utility model provides a kind of high-voltage outlet box structure, belong to outlet box technical field, including hollow box body, the top of hollow box body is buckled and is provided with box cover, and box cover and hollow box body are opened and closed by dismounting component on outer wall, the inner wall bottom of hollow box body is extended out arc transition shape by circular plane, port contains different sizes of circular opening, and is connected by curved surface chamber between port, chamber inner wall is equipped with the special-shaped projection and recess of adaptation high-voltage cable layout, arc transition outer contour curvature radius, port size and position, design according to high-voltage cable quantity, trend and voltage grade requirement, to optimize internal electric field distribution, the inner wall of hollow box body is equipped with the special-shaped boss of adaptation high-voltage cable layout, the shape, quantity and distribution of special-shaped boss, the high-voltage cable of different trend, specification can be separated, limited, avoid cable crossing, extrusion.

Description

Technical Field

[0001] This utility model relates to the field of junction box technology, specifically a high-voltage outlet box structure. Background Technology

[0002] In the field of high-voltage electrical equipment, high-voltage junction boxes are used for centralized placement and protection of high-voltage cables to ensure the safety of power transmission.

[0003] A related technology (publication number: CN208046197U) discloses a high-voltage wire connector insulation box. The disclosed technical solution utilizes a housing including a base plate, left side plate, right side plate, front side plate, and rear side plate, featuring mounting base plate, wire terminals, and a box cover. By installing the wire terminals within the insulating housing and connecting them to slots on the front and rear side plates via a pull-in / pull-out method through the box cover, cable connections become more reliable, safe, and convenient. This effectively improves work and production efficiency.

[0004] The above-disclosed technical solutions reveal the following problems: high-voltage equipment has a large number of cables with complex routing. Traditional outlet boxes are mostly regular cuboids with simple chamber structures, which are difficult to adapt to cable layout requirements. This can easily lead to cable accumulation and crossing, causing electric field distortion and insulation failure risks, threatening the safe operation of the equipment. In response, we propose a new type of high-voltage outlet box structure.

[0005] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background section of this application, and therefore may include prior art information that does not constitute prior art information known to those skilled in the art. Utility Model Content

[0006] This utility model aims to solve at least one of the technical problems existing in the prior art or related technologies. To address the safety issues of high-voltage power lines in the prior art, this utility model provides a high-voltage outlet box structure that employs an irregularly shaped chamber structure combined with a multi-directional, layered layout structure adapted to high-voltage cables to achieve a safe and neat cable arrangement. The specific technical solution is as follows: A high-voltage outlet box structure includes a hollow box body. A box cover is fastened to the top of the hollow box body, and the box cover and the hollow box body are opened and closed by a disassembly component on the outer wall. The bottom of the inner wall of the hollow box body is set with an arc-shaped transition multi-port connected shape, and the multi-ports are connected by curved cavity. The inner wall of the hollow box body is provided with an irregularly shaped protrusion adapted to the layout of high-voltage cables. The outer wall of the hollow box body is embedded with outlet ports that are triangularly distributed with the box cover.

[0007] In the above technical solution, the top of the outer wall of the hollow box is provided with a stepped locking edge that engages with the box lid.

[0008] The bottom of the box lid has an annular groove along the inner wall that matches the stepped edge.

[0009] The disassembly and assembly components include connecting ears that are respectively fixed to the hollow box body and the outer wall of the box cover, and the connecting ears are provided with connecting through holes.

[0010] The irregularly shaped protrusion and the hollow box are integrally formed.

[0011] The bottom of the inner wall of the hollow box is fixedly installed with a winding post, and the outer wall of the winding post is fitted with spiral partitions from top to bottom, and a winding channel is formed between every two adjacent spiral partitions.

[0012] The upper part of the outer wall of the winding post is threaded with a winding limiter.

[0013] Compared with the prior art, the beneficial effects of this utility model are: the structure of the high-voltage outlet box: 1. The arc-shaped transition, multi-port and irregular cavity design accurately adapts to the multi-directional and layered layout requirements of high-voltage cables. The internal protruding structure effectively separates and limits the cables, avoiding crossing and compression, optimizing the internal electric field distribution, reducing the risk of insulation failure, and improving the safety and stability of equipment operation.

[0014] 2. The annular groove of the end cap fits tightly with the opening at the top of the housing, enhancing the sealing performance and effectively blocking external dust and moisture; the smooth transition of the main housing port reduces cable stress concentration, protects the insulation layer, extends the service life of cables and equipment, and reduces maintenance costs and failure rate. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a high-voltage outlet box according to the present invention. Figure I ; Figure 2 This is a schematic diagram of the structure of a high-voltage outlet box according to the present invention. Figure II ; Figure 3 This is a structural schematic diagram of the hollow box body and the lid of this utility model; Figure 4 This is a schematic diagram of the structure of part of Embodiment 2 of this utility model; in, Figures 1 to 4 The correspondence between the reference numerals and component names in the attached drawings is as follows: 1-Hollow box body, 2-Box cover, 3-Irregular protrusion, 4-Outlet port, 5-Stepped retaining edge, 6-Connecting ear, 7-Mating through hole, 8-Winding post, 9-Spiral partition, 10-Winding limiter. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] The following are specific implementation cases and appendices. Figure 1-3 The present invention will be further described below, but the present invention is not limited to these embodiments. Example

[0018] A high-voltage outlet box structure includes a hollow box body 1. A cover 2 is fastened to the top of the hollow box body 1, and the cover 2 and the hollow box body 1 are connected and opened / closed by a disassembly and assembly component on the outer wall. After the cover 2 is fastened to the outside of the hollow box body 1, the entire outlet box forms a sealed cavity. The disassembly and assembly component makes it easy to disassemble and install the cover 2 and the hollow box body 1, providing convenience for relevant personnel during maintenance. The bottom of the inner wall of the hollow box body 1 is designed with an arc-shaped transition multi-port connected shape, and the multiple ports are connected by curved cavity.

[0019] The bottom of the inner wall of the hollow box 1 extends into an arc-shaped transition shape through a circular plane. The ports include circular openings of different sizes, and the ports are connected by curved chambers. The inner wall of the chambers is provided with irregular protrusions and recesses adapted to the layout of high-voltage cables. The radius of curvature of the arc-shaped transition outer contour, the size and position of the ports are designed according to the number, direction and voltage level requirements of the high-voltage cables in order to optimize the internal electric field distribution.

[0020] The inner wall of the hollow box 1 is provided with irregularly shaped protrusions 3 adapted to the layout of high-voltage cables. The shape, number, and distribution of the irregularly shaped protrusions 3 can separate and limit high-voltage cables of different directions and specifications, preventing cables from crossing or being squeezed. The outer wall of the hollow box 1 is embedded with cable outlets 4 arranged in a triangle with the box cover 2. Two Y-shaped cable outlets 4 are fixedly embedded on both sides of the bottom of the hollow box 1. The Y-shaped branches on both sides prevent the cables from contacting each other, ensuring the safety of the high-voltage box during use.

[0021] The hollow box 1 has a stepped retaining edge 5 at the top of its outer wall, which engages with the lid 2. The stepped retaining edge 5 is annular and is fixedly installed on the top edge of the hollow box 1, facing inwards. This creates an inward-facing stepped shape between the stepped retaining edge 5 and the edge of the hollow box 1. When the lid 2 is fastened onto the hollow box 1, the inner wall of the lid 2 slides against the outer wall of the stepped retaining edge 5 until it closes with the hollow box 1, thus providing further protection.

[0022] It is worth noting that the bottom of the lid 2 has an annular groove along the inner wall that matches the stepped edge 5. The shape of the annular groove ensures that it matches the stepped edge 5, and the fit between the annular groove and the stepped edge 5 increases the sealing effect at the joint between the lid 2 and the hollow box body 1.

[0023] In addition, the disassembly and assembly components include connecting ears 6 that are respectively fixed to the outer walls of the hollow box body 1 and the box cover 2, and the connecting ears 6 are provided with connecting through holes 7.

[0024] After the lid 2 is fastened onto the hollow box body 1, the bolt is passed through the mating through hole 7 of the connecting ear 6, and the lid 2 and the hollow box body 1 are locked by the bolt and nut, making the lid 2 easy to disassemble and bringing convenience to the operation process.

[0025] In addition, the irregularly shaped protrusion 3 and the hollow box 1 are integrally molded structures. The integral molding structure avoids the weak points caused by splicing, welding, screw fixing and other methods in traditional assembly.

[0026] Furthermore, a winding limiter 10 is threadedly connected to the upper part of the outer wall of the winding post 8. An external thread is provided on the upper part of the outer wall of the winding post 8 to be threadedly connected to the winding limiter 10. According to the length of the cable wound on the outer wall of the winding post 8, the winding limiter 10 is turned to limit the length of the cable wound on the outer wall of the winding post 8, thus ensuring the adaptability of the cable. Example

[0027] See attached document Figure 4 As shown: A winding post 8 is fixedly installed on the bottom of the inner wall of the hollow box 1, and spiral partitions 9 are sequentially sleeved on the outer wall of the winding post 8 from top to bottom, with a winding channel formed between every two adjacent spiral partitions 9. Five spiral partitions 9 are evenly fixedly sleeved on the outer wall of the winding post 8 from top to bottom, and four spiral channels are formed between the five spiral partitions 9.

[0028] When the cable is long, it is wound around the four spiral channels in sequence to avoid direct contact between the cables. The spiral spacers 9 separate the cables to prevent them from crossing each other due to their length, thus ensuring the safety of the cables.

[0029] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0030] Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," "third," or "fourth" may explicitly or implicitly include at least one of those features.

[0031] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-voltage outlet box structure, characterized in that, The device includes a hollow box (1), with a cover (2) fastened to the top of the hollow box (1). The cover (2) and the hollow box (1) are connected and opened / closed by a disassembly component on the outer wall. The bottom of the inner wall of the hollow box (1) is set with an arc-shaped transition multi-port connected shape, and the multi-ports are connected by curved cavity. The inner wall of the hollow box (1) is provided with a shaped protrusion (3) adapted to the layout of high-voltage cables. The outer wall of the hollow box (1) is embedded with a cable outlet (4) that is triangularly distributed with the cover (2).

2. The high-voltage outlet box structure according to claim 1, characterized in that: The top of the outer wall of the hollow box (1) is provided with a stepped retaining edge (5) that engages with the box cover (2).

3. The high-voltage outlet box structure according to claim 2, characterized in that: The bottom of the box cover (2) has an annular groove along the inner wall that matches the stepped edge (5).

4. The high-voltage outlet box structure according to claim 1, characterized in that: The disassembly and assembly components include connecting ears (6) that are respectively fixed to the outer walls of the hollow box (1) and the box cover (2), and the connecting ears (6) are provided with connecting holes (7).

5. The high-voltage outlet box structure according to claim 1, characterized in that: The irregular protrusion (3) and the hollow box (1) are integrally formed.

6. The high-voltage outlet box structure according to claim 1, characterized in that: The bottom of the inner wall of the hollow box (1) is fixedly installed with a winding post (8), and the outer wall of the winding post (8) is sequentially fitted with spiral partitions (9) from top to bottom, and a winding channel is formed between every two adjacent spiral partitions (9).

7. The high-voltage outlet box structure according to claim 6, characterized in that: The upper part of the outer wall of the winding post (8) is threaded with a winding limiter (10).

Images