CN223109488U

CN223109488U - A multifunctional ring main unit for power transmission

Info

Publication number: CN223109488U
Application number: CN202421594286.6U
Authority: CN
Inventors: 胡宏扬; 胡小龙; 张峰; 岳跃双
Original assignee: Anhui New Electric Co ltd
Current assignee: Anhui New Electric Co ltd
Priority date: 2024-07-08
Filing date: 2024-07-08
Publication date: 2025-07-15
Anticipated expiration: 2034-07-08

Abstract

The utility model discloses a multifunctional ring main unit for power transmission, which comprises a ring main unit body, wherein a bearing plate is slidably arranged in the ring main unit body, a first unit body and a second unit body are slidably arranged at the top end of the bearing plate, through grooves are formed in the side walls of the first unit body and the second unit body, and a self-locking assembly is arranged between the first unit body and the second unit body. According to the ring main unit, the receiving plate is pulled out of the ring main unit body only through the handle, so that the two ring main units are pulled out of the ring main unit body, the two ring main unit bodies can be overhauled in the outer part of the ring main unit body, the through groove between the two ring main unit bodies is used for connecting cables between the two ring main unit bodies, the self-locking assembly is arranged through the inserting rod and the inserting groove, the risk of corrosion locking of nuts is avoided, the device achieves the effects that the internal cabinet body is convenient to repair, and the risk that the nuts cannot be disassembled due to corrosion is avoided.

Description

Multifunctional ring main unit for power transmission

Technical Field

The utility model relates to the technical field of ring main units, in particular to a multifunctional ring main unit for power transmission.

Background

The ring main unit is used as important equipment in a power system and is mainly used for ring network power supply and terminal power supply of an urban power grid. It integrates the functions of high-voltage switch equipment, such as load switch, fuse and correspondent control, measurement and protection devices, etc. in a closed metal cabinet body to form a compact distribution device. The ring main unit has the advantages of compact structure, small volume, small occupied area, simple and convenient installation, reliable operation, small maintenance workload, safe use and the like, and is widely applied to power distribution stations and box-type substations of load centers such as urban residential communities, high-rise buildings, large public buildings, factory enterprises and the like. The ring main unit not only improves the reliability and safety of power supply, but also effectively optimizes the power grid structure and improves the overall operation efficiency of the power system.

The internal design of a ring main unit typically includes two main cabinets, an incoming cabinet and an outgoing cabinet. The incoming line cabinet is a part of the ring main unit for receiving external power input, is connected with an upper power grid and is responsible for introducing electric energy into a ring main unit system. The interior of the incoming line cabinet is usually equipped with high voltage switches, protection devices and associated measurement and control equipment to ensure safe, reliable input of electrical energy. The outlet cabinet is responsible for distributing electric energy from the ring main unit to each load point, and is a key part for connecting the ring main unit with a lower-level power grid or user equipment. The inside of the outlet cabinet is also provided with a high-voltage switch, protective equipment and necessary measuring and controlling elements so as to ensure high-quality and stable output of electric energy. The design of separating the incoming line from the outgoing line not only improves the operation flexibility of the ring main unit, but also effectively enhances the stability and safety of the power system.

Inside the ring main unit of the prior art, two or more cabinets are generally designed, and are usually placed directly in the ring main unit and are mounted by means of simple nut fixing. The incoming line cabinet and the outgoing line cabinet are connected with each other through various cables. When needs to maintain the looped netowrk cabinet inside, directly go on in the looped netowrk cabinet inside generally, however, because looped netowrk cabinet inner space is narrow and small, light is not enough and cable overall arrangement is complicated, maintenance work becomes fairly difficult. In some maintenance scenarios, the internal cabinet may need to be disassembled for repair or replacement, but due to the large number of cable connections between the cabinets, it is necessary to disassemble all connection assemblies between the two cabinets and the ring main unit at the same time and then remove the cabinet. This process is not only cumbersome, but also may cause accidental damage to the cables between the cabinets. In addition, adopt the nut connected mode between inside cupboard and the looped netowrk cabinet, once the nut wets, rust takes place easily with the bolt of connection, this certainly has further increased the degree of difficulty and the complexity of dismantling. Accordingly, in response to these deficiencies of existing ring main unit designs, a more convenient and efficient repair and replacement scheme is needed to improve the repair experience and reduce the risk of potential cable damage.

Disclosure of utility model

The utility model aims to provide a multifunctional ring main unit for power transmission, which aims to solve the defects in the prior art.

In order to achieve the above purpose, the multifunctional ring main unit for power transmission comprises a ring main unit body, wherein a bearing plate is slidably arranged in the ring main unit body, a first unit body and a second unit body are slidably arranged at the top end of the bearing plate, through grooves are formed in the side walls of the first unit body and the second unit body, a self-locking assembly is arranged between the first unit body and the second unit body, a wedge-shaped limiting plate is fixedly arranged on the side wall of one side, close to the inner wall of the ring main unit body, of the first unit body, two first limiting grooves are formed in the inner wall of the ring main unit body, the two wedge-shaped limiting plates are slidably connected with the two first limiting grooves, a plurality of second limiting grooves are formed in the top end of the bearing plate, limiting strips are fixedly arranged at the bottom ends of the first unit body and the second unit body, the limiting strips are slidably connected with the second limiting grooves, and the direction of the limiting strips, which are perpendicular to the side wall of the ring main unit body, is arranged on the side wall of the ring main unit body.

As further description of the technical scheme, the connecting strips are fixedly arranged on the side wall of the bearing plate, two sliding grooves are formed in the side wall of the bearing plate, and the two connecting strips are in sliding connection with the sliding grooves.

As further description of the technical scheme, the self-locking assembly comprises a plurality of connecting columns and a plurality of grooves, wherein the connecting columns and the grooves are respectively arranged on the side walls of the first cabinet body and the second cabinet body, slots are formed in the connecting columns, inserting rods are arranged on one sides of the grooves, penetrate through the side walls of the second cabinet body and are in sliding connection with the second cabinet body, and springs are connected between the top ends of the inserting rods and the second cabinet body.

As further description of the technical scheme, one end of the connecting column is provided with an inclined plane, and one end of the inserted link is connected with a ball in a rolling way.

As further description of the technical scheme, the side wall of the bearing plate is provided with a handle, both sides of the ring main unit body are provided with hinge assemblies, the hinge assemblies are provided with cabinet doors, and the cabinet doors are rotationally connected with the ring main unit body through the hinge assemblies.

As further description of the technical scheme, the side wall of one side of the ring main unit body, which is far away from the cabinet door, is provided with a plurality of heat dissipation grooves.

The utility model provides a multifunctional ring main unit for power transmission. The two cabinet bodies are slidably mounted above the bearing plate through the limiting strips, the two cabinet bodies are initially limited above the bearing plate through the self-locking assembly, the bearing plate is slidably mounted inside the ring main unit body through the connecting strips, the two cabinet bodies can be transversely and vertically limited inside the ring main unit body through the wedge-shaped limiting plates on the two sides, the self-locking assembly cannot jolt and cannot be transversely and cheaply arranged, the direction of the limiting strips below and the direction of the second limiting grooves are perpendicular to the side wall of the ring main unit body, the longitudinal limiting of the two cabinet bodies is achieved, and when the two cabinet bodies are required to be overhauled, the ring main unit body is pulled out through the handle, so that the two cabinet bodies are also pulled out from the ring main unit body, the two cabinet bodies can be overhauled inside the ring main unit body, the through grooves between the two cabinet bodies are used for connecting cables between the two cabinet bodies, the self-locking assembly adopts the arrangement of the inserting rods and the inserting grooves, the nuts cannot be overhauled, the nuts cannot be rusted, and the situation that the nuts cannot be overhauled is avoided due to the rust and the fact that the nuts cannot be overhauled is convenient.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

This document provides an overview of various implementations or examples of the technology described in this disclosure, and is not a comprehensive disclosure of the full scope or all of the features of the technology disclosed.

Drawings

Fig. 1 is a schematic diagram of an overall three-dimensional structure of a multifunctional ring main unit for power transmission according to the present utility model;

FIG. 2 is a schematic view of the three-dimensional structure of the cabinet door of the present utility model after closing;

FIG. 3 is a schematic view of a three-dimensional structure of the present utility model from another perspective after closing the door;

FIG. 4 is a schematic diagram of a three-dimensional structure of the inside of the ring main unit of the present utility model;

FIG. 5 is a schematic view of a three-dimensional explosion structure between a first cabinet, a second cabinet and a receiving plate according to the present utility model;

FIG. 6 is a schematic view of a three-dimensional exploded view of the self-locking assembly of the present utility model;

fig. 7 is a schematic three-dimensional structure of the dust screen disposed inside the heat sink of the present utility model.

Legend description:

1. The ring main unit comprises a ring main unit body, 2, a hinge assembly, 3, a cabinet door, 4, a bearing plate, 5, a handle, 6, a connecting strip, 7, a chute, 8, a first cabinet body, 9, a second cabinet body, 10, a first limit groove, 11, a wedge-shaped limit plate, 12, a limit strip, 13, a second limit groove, 14, a through groove, 15, a connecting column, 16, a slot, 17, a groove, 18, a plug rod, 19, a spring, 20, a ball, 21, an inclined plane, 22, a heat dissipation groove, 23 and a dust screen.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Referring to FIGS. 1-7, a multifunctional ring main unit for power transmission comprises a ring main unit body 1, two first limit grooves 10 are formed in the inner wall of the ring main unit body 1 in a sliding manner, a first cabinet body 8 and a second cabinet body 9 are slidably mounted at the top end of the bearing plate 4, limit strips 12 are fixedly mounted at the bottom ends of the first cabinet body 8 and the second cabinet body 9, a self-locking assembly is arranged between the first cabinet body 8 and the second cabinet body 9, a wedge-shaped limit plate 11 is fixedly mounted on the side wall of one side, close to the inner wall of the ring main unit body 1, two first limit grooves 10 are formed in the inner wall of the ring main unit body 1, two wedge-shaped limit plates 11 are slidably connected with the two first limit grooves 10, a plurality of second limit grooves 13 are formed in the top end of the bearing plate 4, limit strips 12 are slidably connected with the second limit grooves 13, a limit strip 12 and the second limit strips 12 are slidably connected with the second limit grooves 13, a limit strip 12 and the two limit strips 12 are arranged on the side wall of the ring main unit body 1, and the two limit strips are not perpendicular to the two limit strips 1, the two limit strips are vertically connected with the two limit strips 4 through the two limit plates 1, and the two limit strips are vertically arranged at the two side walls of the two limit plates 12, and the two limit strips are not perpendicular to the two limit plates 1, and the two limit strips are vertically connected with the two limit plates 1, and the limit strips are vertically arranged at the side walls of the two limit plates 12 are vertically arranged at the side walls of the two limit plates 1, the ring main unit body 1 is only required to be pulled out of the bearing plate 4 through the handle 5, so that two ring main units are pulled out of the ring main unit body 1, the two ring main units can be overhauled in the ring main unit body 1, the through groove 14 between the two ring main units is used for connecting cables between the two ring main units, the self-locking assembly adopts the arrangement of the inserting rod 18 and the inserting groove 16, the risk of nut corrosion locking cannot occur, and the device realizes that the internal cabinet is convenient to check and repair, and avoids the risk that the nut corrosion cannot be detached.

As the preferable technical scheme of the embodiment, the connecting strips 6 are fixedly arranged on the side wall of the bearing plate 4, two sliding grooves 7 are formed in the side wall of the bearing plate 4, the two connecting strips 6 are in sliding connection with the sliding grooves 7, the contact area between the bearing plate 4 and the side wall of the ring main unit body 1 can be increased due to the arrangement of the connecting strips 6 and the sliding grooves 7, and the sliding process of the bearing plate 4 is more stable.

As a preferred technical scheme of the embodiment, the self-locking assembly comprises a plurality of connecting columns 15 and a plurality of grooves 17, wherein the connecting columns 15 and the grooves 17 are respectively arranged on the side walls of the first cabinet body 8 and the second cabinet body 9, the connecting columns 15 are provided with slots 16, one sides of the grooves 17 are respectively provided with a plug rod 18, the plug rods 18 penetrate through the side walls of the second cabinet body 9 and are in sliding connection with the second cabinet body 9, springs 19 are connected between the top ends of the plug rods 18 and the second cabinet body 9, when the first cabinet body 8 and the second cabinet body 9 are in contact with each other, the plug rods 18 are jacked up by the connecting columns 15, and then under the action of the springs 19, the plug rods 18 are inserted into the slots 16, so that connection between the first cabinet body 8 and the second cabinet body 9 is realized.

As the preferred technical scheme of the embodiment, one end of the connecting column 15 is provided with the inclined plane 21, one end of the inserted rod 18 is connected with the ball 20 in a rolling way, and the arrangement of the inclined plane 21 and the ball 20 can facilitate the jack-up of the connecting column 15 to the inserted rod 18 and prevent the clamping between the connecting column 15 and the inserted rod 18.

As the preferred technical scheme of the embodiment, the handle 5 is arranged on the side wall of the receiving plate 4, the hinge assemblies 2 are arranged on the two sides of the ring main unit body 1, the cabinet door 3 is arranged on the hinge assemblies 2 and is rotationally connected with the ring main unit body 1 through the hinge assemblies 2, the receiving plate 4 is pulled out more conveniently through the arrangement of the handle 5, and the cabinet door 3 can protect the inside of the ring main unit body 1.

As the preferable technical scheme of the embodiment, the side wall of the ring main unit body 1, which is far away from the cabinet door 3, is provided with a plurality of heat dissipation grooves 22, a large amount of heat generated by the operation of the inside of the ring main unit body 1 can be dissipated through the heat dissipation grooves 22, and the heat in the heat dissipation grooves 22 can be dissipated through the heat dissipation grooves 22, so that the heat dissipation performance of the device is improved.

As the preferable technical scheme of the embodiment, the dustproof nets 23 are arranged in the plurality of radiating grooves 22, and the dustproof nets 23 can prevent dust from entering the ring main unit body 1 through the dustproof nets 23 and the radiating grooves 22, so that the dustproof performance of the device is improved.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. A multifunctional ring main unit for power transmission, comprising a ring main unit cabinet (1), characterized in that a receiving plate (4) is slidably mounted inside the ring main unit cabinet (1), a first cabinet (8) and a second cabinet (9) are slidably mounted on the top of the receiving plate (4), side walls of the first cabinet (8) and the second cabinet (9) are both provided with through grooves (14), a self-locking component is provided between the first cabinet (8) and the second cabinet (9), and a wedge-shaped limiter is fixedly mounted on the side walls of the first cabinet (8) and the second cabinet (9) on the side close to the inner wall of the ring main unit cabinet (1). A positioning plate (11), the inner wall of the ring network cabinet body (1) is provided with two first limiting grooves (10), the two wedge-shaped limiting plates (11) are slidably connected to the two first limiting grooves (10), the top of the receiving plate (4) is provided with a plurality of second limiting grooves (13), the bottom ends of the first cabinet body (8) and the second cabinet body (9) are both fixedly installed with limiting strips (12), the limiting strips (12) are slidably connected to the second limiting grooves (13), and the direction in which the limiting strips (12) and the second limiting grooves (13) are arranged is perpendicular to the side wall of the ring network cabinet body (1).

2. A multifunctional ring main unit for power transmission according to claim 1, characterized in that a connecting strip (6) is fixedly installed on the side wall of the receiving plate (4), and two sliding grooves (7) are provided on the side wall of the receiving plate (4), and the two connecting strips (6) are slidably connected to the sliding grooves (7).

3. A multifunctional ring network cabinet for power transmission according to claim 1, characterized in that the self-locking component includes a plurality of connecting columns (15) and a plurality of grooves (17), and the plurality of connecting columns (15) and the plurality of grooves (17) are respectively arranged on the side walls of the first cabinet (8) and the second cabinet (9), a plurality of connecting columns (15) are provided with slots (16), and a plurality of grooves (17) are provided with plug rods (18) on one side, and the plurality of plug rods (18) pass through the side wall of the second cabinet (9) and are slidably connected to the second cabinet (9), and a spring (19) is connected between the top end of the plurality of plug rods (18) and the second cabinet (9).

4. A multifunctional ring main unit for power transmission according to claim 3, characterized in that one end of the connecting column (15) is provided with an inclined surface (21), and one end of the plug rod (18) is rollingly connected with a ball (20).

5. A multifunctional ring main unit for power transmission according to claim 1, characterized in that a handle (5) is provided on the side wall of the receiving plate (4), hinge assemblies (2) are provided on both sides of the ring main unit body (1), a cabinet door (3) is provided on the hinge assembly (2), and the cabinet door (3) is rotatably connected to the ring main unit body (1) through the hinge assembly (2).

6. A multifunctional ring main unit for power transmission according to claim 5, characterized in that a plurality of heat dissipation grooves (22) are provided on the side wall of the ring main unit body (1) away from the cabinet door (3).