CN220896075U

CN220896075U - Secondary wiring structure of ring main unit

Info

Publication number: CN220896075U
Application number: CN202322512903.5U
Authority: CN
Inventors: 钟兰芬; 童体梁; 黄超
Original assignee: Sinmasmart Electric Co ltd
Current assignee: Sinmasmart Electric Co ltd
Priority date: 2023-09-15
Filing date: 2023-09-15
Publication date: 2024-05-03
Anticipated expiration: 2033-09-15

Abstract

The utility model relates to a ring main unit secondary wiring structure, which belongs to the technical field of electricity, and comprises the following components: a wiring box, a wiring board, and a connector; a plurality of secondary wiring terminals are arranged on the wiring board, the wiring terminals are connected with the connector through electric signals, and the wiring board is fixed in the wiring box; the wiring box is provided with a wire inlet and outlet hole, a wire clamping disc is arranged between the wire inlet and outlet hole, and the wire clamping disc comprises a cable fixing coil and a wire harness structure. Above-mentioned looped netowrk cabinet secondary wiring structure reducible secondary circuit's quantity, regularly accomodate scattered circuit, protection binding post, guarantee that partial equipment circuit can dismantle the change easily simultaneously, improve staff's work efficiency, guarantee power quality.

Description

Secondary wiring structure of ring main unit

Technical Field

The utility model belongs to the technical field of electricity, and particularly relates to a ring main unit secondary wiring structure.

Background

The ring main unit is an electric power device in an electric power system for distributing and controlling electric power. The secondary wiring structure is one of key parts of the ring main unit, and has the main functions of realizing transmission and control of electric signals, and a low-voltage wiring mode adopted in the ring main unit is used for connecting a low-voltage output interface in the ring main unit to electric equipment of consumers. The secondary wiring structure of looped netowrk cabinet mainly includes: an electric circuit comprising a bus-bar chamber on the low-voltage side of the input side, a distribution bus bar, an output transformer, a branch cable on the side and the like. In different looped netowrk cabinets, the concrete constitution of secondary wiring structure probably will be different, and different secondary wiring structures can put forward the design to different problems.

The equipment in the looped netowrk cabinet and the abundant various work load that leads to secondary wiring of structure often have wiring complicacy, wiring inefficiency in current secondary wiring structure, and the inside difficult maintenance that exists of confined wiring structure leads to secondary wiring reliability not high problem, and then the demand of nimble change secondary wiring structure is increasingly outstanding. Meanwhile, damage to the lines in the ring main unit in extreme climates or in severe environments is common, and the failed lines are easy to cause accidents such as short circuit and the like in the use process.

Disclosure of utility model

The utility model provides a ring main unit secondary wiring structure, which aims to solve the problems of complex and numerous wiring, low wiring efficiency and low reliability of the conventional secondary wiring structure.

The aim of the utility model can be achieved by the following technical scheme:

A ring main unit secondary wiring structure, comprising: a wiring box, a wiring board, and a connector; the wiring board is provided with a plurality of secondary wiring terminals, the wiring terminals are connected with the connector through electric signals, and the wiring board is fixed on the wiring box; the wire distribution box is provided with a wire inlet and outlet hole, a wire clamping disc is arranged between the wire inlet and outlet hole, and the wire clamping disc comprises a cable fixing coil and a wire harness structure.

Preferably, the connector is a plug-in connector, and quick connection and disconnection are realized through plug-in operation.

Preferably, the secondary wiring terminal adopts a protective sleeve type terminal, and the protective sleeve type terminal comprises a detachable protective sleeve and a wiring terminal.

Preferably, a distributing frame is arranged on the back of the wiring board, and the distributing frame is movably connected with the inner wall of the wiring box through a sliding rail.

Preferably, the connector further comprises a protective cover, wherein the protective cover is arranged on the wiring board to protect the secondary wiring terminal and the connector.

Preferably, an observation window is provided on the distribution box.

Preferably, the terminal block and the connector are made of an insulating material.

Preferably, dustproof strips are arranged on the outer sides of the wire inlet and outlet holes, and sponge backing rings are arranged on the inner walls of the wire inlet and outlet holes and the periphery of the wire clamping disc.

Preferably, the wire harness structure is composed of a water drop-shaped component, one end of the wire harness structure is fixed in the cable coil, and the wire harness structure is made of silica gel.

Preferably, a humidity sensing device is arranged in the distribution box.

The beneficial effects of the utility model are as follows: through setting up the wiring structure case of the detachable combination of inside junction device, set up the card drum that has fixed classification and receive the bundle and reduce the messy distribution of secondary wiring at business turn over line hole, can clearly discover the line of which part corresponds the problem when changing the maintenance. Above-mentioned looped netowrk cabinet secondary wiring structure reducible secondary circuit's quantity, regularly accomodate scattered circuit, the bareless terminal, guarantee that partial equipment circuit can be dismantled easily simultaneously and change, improve staff's work efficiency, guarantee power quality.

Drawings

The present utility model is further described below with reference to the accompanying drawings for the convenience of understanding by those skilled in the art.

FIG. 1 is a schematic diagram of the overall structure of a wiring structure according to an embodiment of the present utility model;

FIG. 2 is a schematic diagram of a card wire according to an embodiment of the present utility model;

fig. 3 is a schematic structural diagram of a distribution frame according to an embodiment of the present utility model.

Reference numerals illustrate:

1. A wiring box; 101. wire inlet and outlet holes; 102. an observation window; 2. a wiring board; 201. a secondary wiring terminal; 202. a distribution frame; 203. a slide rail; 3. a wire clamping disc; 301. a cable fixing coil; 302. a wire harness structure; 4. a protective cover; 5. a sponge backing ring; 6. humidity sensor.

Detailed Description

In order to further describe the technical means and effects adopted by the utility model for achieving the preset aim, the following detailed description is given below of the specific implementation, structure, characteristics and effects according to the utility model with reference to the attached drawings and the preferred embodiment.

A ring main unit secondary wiring structure, as shown in fig. 1, includes: a wiring box 1, a wiring board 2 and a connector. The ring cabinet typically has 2 to 3 incoming cables, each of which is connected to one contact of the incoming switch, and then the other contact of the incoming switch is connected to the neutral point, thereby forming a power supply loop. In order to prevent the wiring from being disordered, the problems of wiring misplacement and the like are solved, a wiring board 2 is arranged, a plurality of secondary wiring terminals 201 are arranged on the wiring board 2, the wiring terminals are connected with the connector through electric signals, a protective cover 4 is further arranged in the wiring box, and the protective cover is arranged on the wiring board 2 and used for protecting the secondary wiring terminals 201 and the connector.

The wiring board 2 is fixed in the wiring box 1; the distribution box 1 is provided with a wire inlet and outlet hole 101, a wire clamping disc 3 is arranged between the wire inlet and outlet holes 101, and the wire clamping disc 3 comprises a cable fixing coil 301 and a wire bundling structure 302. The problem that the existing ring main unit secondary wiring structure has complicated wiring work is solved, the conditions of wrong wiring, missed wiring and the like which are easy to occur for operators are reduced, and the secondary wiring of the ring main unit can be more intelligent, easy to operate and maintainable.

Further, in a preferred embodiment of the present application, the wiring of the secondary wiring in the wiring closet is numerous, so that in designing the wiring structure, in order to enable the wiring connection of the electrical devices of the respective sections to be ordered, the wire inlet and outlet holes 101 are provided in the wiring closet 1, and the number of the wire inlet and outlet holes 101 is adjusted as required depending on the equipment to which the positions of the respective sections to be wired are different. The distribution box 1 is internally provided with at least four wire inlet and outlet holes 101, and the at least four wire inlet and outlet holes 101 are arranged on each of four surfaces of the distribution box 1. This business turn over line hole 101 makes the flexibility of wiring increase, and business turn over line hole 101 top sets up wiring board 2, and wiring board 2 connect the inlet wire for business turn over line reduces the disordered range, and it is more reasonable to distribute can improve the efficiency of work such as change maintenance.

Further, in a preferred embodiment of the present application, the ring main unit is inevitably in a situation of dust and severe external environment during use, and the wire inlet and outlet holes 101 are provided, so that the factors such as dust, water vapor or insects, which may prevent the operation of the devices in the ring main unit, are increased, and accidents such as short circuit of the circuit devices caused by the influence of the external environment are increased. For this reason, it is necessary to provide components to increase protection of the secondary wiring and equipment in the wiring box 1 from adverse effects on the equipment due to dust. The dustproof strip is arranged on one side of the wire inlet and outlet hole 101 close to the wiring box 1, one side of the dustproof strip is fixed on the wiring box 1, and the dustproof strip can block external dust and moisture from entering to a certain extent, so that the risk of short circuit of lines and equipment caused by external dust is reduced.

Further, in a preferred embodiment of the present application, the wire clamping disc 3 needs to be installed in the wire inlet and outlet hole 101 for use, and the wire clamping disc 3 is configured to provide a plurality of clamping grooves so that wires can be classified to pass through the wire inlet and outlet hole 101, thereby achieving the classification of the wires. Therefore, the wire clamping disc 3 needs to be arranged in the wire inlet and outlet hole 101 in a stable structure, the inner wall of the wire inlet and outlet hole 101 is of a groove structure, the wire clamping disc 3 can be fixedly clamped by the groove structure, the wire clamping disc 3 is arranged in the groove structure, and the diameter of the wire clamping disc 3 is slightly larger than that of the wire inlet and outlet hole 101, so that the wire clamping disc can be fixed in the groove structure. The structure enables the wire clamping disc 3 and the wire inlet and outlet holes 101 to form a combined body, the wire clamping disc 3 is embedded and fixed in the wire inlet and outlet holes 101, the wire inlet and outlet can be prevented from falling off from the wire inlet and outlet holes 101 easily in the process of mutually pulling and installing the wire, and the stability of the structure is improved.

Further, in a preferred embodiment of the present application, it is common that the line in the ring main unit is damaged in extreme weather or in severe environment, in order to prevent moisture intrusion, the inner wall of the wire inlet and outlet hole 101 is provided with a sponge grommet 5, the sponge grommet 5 is placed in the wire inlet and outlet groove, and the groove structure is simultaneously provided with a wire clamping disc 3, so that the width of the sponge grommet 5 is wider than that of the groove of the wire inlet and outlet hole 101, thereby ensuring that the sponge grommet 5 can reserve redundant sponge in the wire inlet and outlet hole 101, and the redundant sponge structure adsorbs moisture on the dust strip or the line, so as to further reduce the probability of accident.

Further, in a preferred embodiment of the present application, as shown in fig. 2, the wire clamping disc 3 includes a cable fixing coil 301 and a wire harness structure 302, one end of the wire harness structure 302 is fixed in the cable coil, the wire harness structure 302 is formed by a water drop-shaped component, and the wire harness structure 302 is made of a silica gel material. The cable fixing coil 301 is a supporting structure, and in the use process of the cable fixing coil 301, the inner side is fixedly connected with the wire binding structure 302, and the outer side is a portion which is embedded with the wire inlet and outlet hole 101. The steel material of the cable fixing coil 301 is hard, so that the embedded strength is increased, and the cable fixing coil can keep the shape unchanged and stably used when a large number of lines pass.

Further, in a preferred embodiment of the present application, as shown in fig. 3, the distribution frame 202 is schematically structured, and the integration of the secondary connection terminals 201 into one place can be satisfied by providing the connection board 2, so that the connection is more organized, to reduce the complexity and heavy work of the connection. Meanwhile, when various wires are connected to the wiring board 2, the wires are combed, and the wiring frame 202 is required to be arranged for fixing the positions of the wires. The back of the wiring board 2 is provided with a distribution frame 202, and the distribution frame 202 is movably connected with the inner wall of the wiring box 1 through a sliding rail 203.

The connection and the switching inside the ring network are realized by matching the control device and the circuit, and then the connection structure further comprises the control device which is used for controlling the connection and the use of the circuit, and an air switch is arranged in the ring network cabinet and needs to be arranged at a position easy to operate. Therefore, the air switch is fixedly connected and arranged outside the distribution box 1 through bolts. Screw hole structures are arranged on two sides of the air switch, screw holes are arranged on the outer side of the door plate of the wiring box 1, the screw holes of the air switch are opposite to the screw holes on the outer side of the door plate of the wiring box 1, and the air switch is fixedly connected through screw-in bolts. The air switch is arranged on the outer side of the door plate, and the received environmental influence is larger than that of the air switch arranged in the door plate of the distribution box 1, so that the air switch is protected from accidental touch. A switch cover is arranged above the air switch, and the switch cover is of an inner buckle structure. One side of the switch cover is connected above the switch structure outside the wiring box 1 through a movable shaft, and the other side of the switch cover is provided with an opening, and the switch cover can be turned on or off through the movable shaft. The switch cover can well ensure that the air switch is not easy to be turned on or turned off by mistake under the condition of using or turning off, and simultaneously can reduce the adverse effect of the air switch on the external environment.

Further, in a preferred embodiment of the present application, in the wiring structure, the terminals are damaged to different degrees according to different climatic environmental problems due to different areas where different devices are located, but the packaging structure is complicated to open to a certain extent due to the fact that part of the wiring structure is located in the packaging structure, so that the terminals of the internal wiring are affected by the environment and are problematic and cannot be found in time, and there is a great potential safety hazard. The observation window 102 is provided on the distribution box 1, and the observation window 102 can simply observe the equipment and the circuit in the distribution box 1, so that whether obvious problems occur or not can be determined, and the problems are more direct and clear. Besides, a humidity sensing device 6 is disposed in the wiring box 1, the humidity sensing device 6 senses the humidity of the environment in the wiring box 1, and when the humidity exceeds the set humidity value by comparing with the set humidity value, the humidity sensing device 6 triggers an internal reminding device to report to an maintainer what working environment the wiring structure is in and risks possibly facing the working environment, so that the staff improves the stability of wiring according to the fed back result, and reduces the potential risks.

The present utility model is not limited to the above embodiments, but is capable of modification and variation in detail, and other modifications and variations can be made by those skilled in the art without departing from the scope of the present utility model.

Claims

1. The utility model provides a looped netowrk cabinet secondary wiring structure which characterized in that includes: a wiring box, a wiring board, and a connector; the wiring board is provided with a plurality of secondary wiring terminals, the wiring terminals are connected with the connector through electric signals, and the wiring board is fixed on the wiring box; the wire distribution box is provided with a wire inlet and outlet hole, a wire clamping disc is arranged between the wire inlet and outlet hole, and the wire clamping disc comprises a cable fixing coil and a wire harness structure.

2. The ring main unit secondary wiring structure according to claim 1, wherein the connector is a plug-in connector, and quick connection and disconnection are achieved through plug-in operation.

3. The ring main unit secondary wiring structure according to claim 1, wherein the secondary wiring terminal is a protective sleeve terminal, and the protective sleeve terminal comprises a detachable protective sleeve and a wiring terminal.

4. The ring main unit secondary wiring structure according to claim 1, wherein a distribution frame is arranged on the back surface of the wiring board, and the distribution frame is movably connected with the inner wall of the distribution box through a sliding rail.

5. The ring main unit secondary wiring structure as in claim 1, further comprising a protective cover disposed on said wiring board to protect said secondary wiring terminals and said connector.

6. The ring main unit secondary wiring structure according to claim 5, wherein the wiring box is provided with an observation window.

7. The ring main unit secondary wiring structure according to claim 1, wherein the wiring board and the connector are made of insulating materials.

8. The ring main unit secondary wiring structure according to claim 1, wherein a dustproof strip is arranged on the outer side of the wire inlet and outlet hole, and a sponge backing ring is arranged on the inner wall of the wire inlet and outlet hole and the periphery of the wire clamping disc.

9. The secondary wiring structure of a ring main unit according to claim 1, wherein the wire harness structure is composed of a water drop-shaped component, one end of the wire harness structure is fixed in a cable coil, and the wire harness structure is made of silica gel.

10. The ring main unit secondary wiring structure according to claim 1, wherein a humidity sensing device is arranged in the wiring box.