CN223378819U

CN223378819U - Connection structure of bus duct and terminal box

Info

Publication number: CN223378819U
Application number: CN202422289321.XU
Authority: CN
Inventors: 戴晶; 王成喜; 朱恩元; 付永根; 郭雯; 唐溧
Original assignee: Zhenjiang Gardermoen Intelligent Power Technology Co ltd
Current assignee: Zhenjiang Gardermoen Intelligent Power Technology Co ltd
Priority date: 2024-09-19
Filing date: 2024-09-19
Publication date: 2025-09-23
Anticipated expiration: 2034-09-19

Abstract

The utility model discloses a connecting structure of a bus duct and a terminal box, which comprises the bus duct and the terminal box connected with the bus duct, wherein the bus duct comprises a shell, two side plates arranged at the end part of the shell and used for being inserted into the terminal box, and a connecting hole formed at the end part of the shell, and the terminal box comprises a box body with an opening on the side surface, an N sealing plate arranged at the rear side of the opening of the box body, and a PE sealing plate arranged at the front side of the opening of the box body. According to the utility model, the PE sealing plate, the N sealing plate and the sealing gasket are arranged, so that the joint of the bus duct and the terminal box is comprehensively protected, the joint of the bus duct and the terminal box is better in sealing protection, the box body is integrally fully welded, the sealing performance of the box body is better, the sealing performance of the joint of the box body and the box body is ensured, the corrosion of the box body by moisture is avoided, the potential safety hazard is avoided, the moisture resistance is better, and the popularization and the use are facilitated.

Description

Connection structure of bus duct and terminal box

Technical Field

The utility model particularly relates to a connecting structure of a bus duct and a terminal box.

Background

The bus duct is a closed metal device formed by copper and aluminum bus columns and is used for distributing larger power for each element of a dispersion system, and the bus duct is provided with a series of matching, commercial production, small volume, large capacity, short design and construction period, convenient assembly and disassembly, no combustion, safety and reliability and long service life, and more electric wires and cables are replaced in the project of indoor low-voltage electric power transmission trunk engineering, wherein the tail end of the bus duct is usually connected with a terminal box or a starting box when the bus duct is installed so as to realize seamless butt joint with electric equipment.

However, after the existing bus duct is connected with the terminal box, the tightness of the joint of the existing bus duct and the terminal box is often not guaranteed, external moisture easily enters the terminal box through a gap of the joint, so that the inside of the terminal box is affected with moisture, and the terminal box is corroded by the moisture, so that potential safety hazards exist, and the use is affected.

Therefore, it is necessary to invent a connection structure of a bus duct and a terminal box to solve the above-mentioned problems.

Disclosure of utility model

Object of the utility model

In order to solve the technical problems in the background art, the utility model provides the connecting structure of the bus duct and the terminal box, which is provided with the PE sealing plate, the N sealing plate and the sealing gasket, so that the connecting part of the bus duct and the terminal box is comprehensively protected, the connecting part of the bus duct and the terminal box is better in sealing protection, the whole box body is fully welded, and the sealing property of the box body is better, so that the sealing property of the connecting part of the box body and the box body is ensured, the box body is prevented from being corroded by moisture, the potential safety hazard is avoided, the moisture resistance is better, and the popularization and the use are facilitated.

(II) technical scheme

In order to achieve the aim, the utility model provides the technical scheme that the connecting structure of the bus duct and the terminal box comprises the bus duct and the terminal box connected with the bus duct;

The bus duct comprises a shell, two side plates arranged at the end part of the shell and used for being inserted into the terminal box, and a connecting hole formed at the end part of the shell;

The terminal box comprises a box body with an opening on the side face, an N sealing plate arranged on the rear side of the opening of the box body, a PE sealing plate arranged on the front side of the opening of the box body, sealing gaskets paved at the bottom and the top of the opening of the box body, a plurality of partition plates arranged in the box body, and locking holes formed in the top wall and the bottom wall of the box body;

and the inside of the two connecting holes is provided with a fastener, and the fastener is screwed into the corresponding locking hole downwards and is used for completing the connection between the bus duct and the terminal box.

Preferably, a bus bar row is inserted in the bus duct, and the bus bar row is sequentially a bus bar PE row, a bus bar A row, a bus bar B row, a bus bar C row and a bus bar N row from outside to inside.

Preferably, an insertion gap into which the busbar is inserted is formed between every two adjacent separators, and a pad is further laid between the two adjacent separators.

Preferably, the separator is an epoxy separator, and the spacer is an epoxy spacer.

Preferably, the number of the connecting holes is four, and the connecting holes are respectively arranged at four corners of the end part of the shell, and the number of the locking holes is also four and is in one-to-one correspondence with the connecting holes.

Preferably, the fastening piece is configured as a bolt and is adapted to the connecting hole and the locking hole.

Preferably, the sealing gasket is a silicone rubber sealing gasket, and a locking hole into which the fastener can be screwed is also formed in the sealing gasket.

Preferably, all the plate bodies of the box body are welded together.

Preferably, the box body is formed by splicing plate bodies, and the plate bodies are fixedly connected through bolts.

Compared with the prior art, the technical scheme of the utility model has the beneficial effects that:

According to the utility model, the PE sealing plate and the N sealing plate are arranged, so that the PE row and the N row of the bus bar outside the bus bar can be protected, the connection strength of the bus duct and the terminal box is improved, the tightness of the side face of the bus bar is ensured, the sealing gasket is arranged, the bottom and the top of the joint of the bus duct and the terminal box are well sealed and protected, the whole box body is fully welded, the tightness of the box body is good, the tightness of the joint is ensured after the bus duct and the terminal box are assembled, external moisture is difficult to enter the box body through the joint of the bus duct and the terminal box, the corrosion of the moisture in the box body is avoided, the potential safety hazard is avoided, the moisture resistance is good, the whole assembly process is simple and convenient, and popularization and use are facilitated.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings required for the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments described in the present utility model, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic diagram of a bus duct structure according to the present utility model;

FIG. 3 is a schematic view of the internal structure of the case of the present utility model;

FIG. 4 is a front view of the case of the present utility model;

FIG. 5 is a schematic diagram of the connection of a splice box and a bus duct of the present utility model;

fig. 6 is a schematic diagram of the connection of the enclosed bus duct and the box of the present utility model.

Reference numerals illustrate:

1 bus duct, 11 shell, 12 side plate, 13 connecting hole, 14 bus bar;

2 a terminal box, a box body 21, a 22N sealing plate, a 23 PE sealing plate, a 24 sealing pad, a 25 partition plate and a 26 locking hole;

3 fasteners and 4 cushion blocks.

Detailed Description

In order to make the technical scheme of the present utility model better understood by those skilled in the art, the present utility model will be further described in detail with reference to the accompanying drawings.

The utility model provides a connecting structure of a bus duct and a terminal box, as shown in figures 1-4, which comprises a bus duct 1 and a terminal box 2 connected with the bus duct 1;

The bus duct 1 comprises a shell 11, two side plates 12 arranged at the end part of the shell 11 and used for being inserted into the terminal box 2, and a connecting hole 13 arranged at the end part of the shell 11;

The terminal box 2 comprises a box body 21 with an opening on the side surface, an N sealing plate 22 arranged on the rear side of the opening of the box body 21, a PE sealing plate 23 arranged on the front side of the opening of the box body 21, sealing gaskets 24 paved at the bottom and the top of the opening of the box body 21, a plurality of partition plates 25 arranged in the box body 21, and locking holes 26 formed on the top wall and the bottom wall of the box body 21;

The inside of each connecting hole 13 is provided with a fastener 3, and the fasteners 3 are screwed into the corresponding locking holes 26 downwards to finish the connection between the bus duct 1 and the terminal box 2.

In an embodiment, the bus duct 1 is internally inserted with the bus bar row 14, the bus bar row 14 is sequentially from outside to inside, and the bus bar row is a bus bar PE row, a bus bar B row, a bus bar C row and a bus bar N row, and an inserting gap for inserting the bus bar row 14 is formed between every two adjacent partition boards 25, so that the bus bar row 14 can be quickly inserted into the box 21, a cushion block 4 is further paved between the two adjacent partition boards 25, the partition boards 25 are arranged as epoxy resin partition boards 25, and the cushion block 4 is arranged as an epoxy resin cushion block 4, so that the bus bar row 14 has better insulation performance in the subsequent use process.

In one embodiment, the quantity of connecting hole 13 is provided with four, and sets up in casing 11 tip four corners department respectively, the quantity of locking hole 26 also is provided with four, and sets up with connecting hole 13 one-to-one, fastener 3 sets up to the bolt, and the staff's operation of being convenient for, and with connecting hole 13 and locking hole 26 looks adaptation, also set up the locking hole 26 that can supply fastener 3 screw in on the sealed pad 24 for fastener 3 after screwing, the top and the bottom of bus duct 1 all pass through the top and the bottom in close contact with of sealed pad 24 and box 21 for bus bar 14 can be protected effectively, sealed pad 24 sets up to silicone rubber seal pad 24, low price, and sealed effectual, does not influence the use of bus duct 1 and terminal box 2 simultaneously.

As shown in fig. 1, in one embodiment, the plates of the box body 21 are fully welded, so that the plates of the box body 21 have good tightness, reach a waterproof level, ensure the structural strength of the box body 21 after welding, and ensure firm and reliable connection between the bus duct 1 and the terminal box 2.

As shown in fig. 5, in one embodiment, the case 21 is formed by splicing boards, the boards are fixedly connected by bolts, and meanwhile, when the boards are spliced, an adaptive waterproof adhesive tape is configured, so that the boards of the case 21 have good tightness, achieve a waterproof level, the splicing mode does not need to perform welding operation, the case is easier to assemble, the working efficiency is improved, and in the subsequent maintenance, the case can be disassembled without damaging the connection with the bus duct 1, so that the practicability is higher.

As shown in fig. 6, in one embodiment, the box 21 is still fully welded, the bus duct 1 is a closed bus duct, and the bus duct 1 and the box 21 are assembled by bolts, so that the bus duct has the beneficial effects of high efficiency and high safety in current transmission after assembly.

In the embodiment of the utility model, during assembly, a worker cleans one end part of the bus duct 1 provided with the side plate 12, so as to ensure the cleaning of the connecting end of the bus duct 1, then the bus duct 1 is directly inserted into the terminal box 2, namely, even if the bus duct 14 is inserted into the box body 21 along the insertion gap between the partition plates 25, at the moment, the PE sealing plate 23 can be contacted with the outer side of the bus PE, the outer side of the whole bus duct 14 is protected while the whole bus duct 14 is limited, and correspondingly, the N sealing plate 22 can protect the outer side of the bus PE, and after the bus duct 14 is completely inserted, the partition plates 25 and the cushion blocks 4 can ensure that the bus duct 14 has a better insulating effect during use, then the worker screws the fastening piece 3 into the locking hole 26 at the top of the box body 21, and the fastening piece 3 can pass through the connecting hole 13 on the box body 11, the sealing gasket 24 and the locking hole 26 on the box body 21, and the assembly of the bus duct 1 and the terminal box 2 can be completed after the fastening piece 3 is matched with a nut not shown in the drawing;

Specifically, the PE sealing plates 23 and the N sealing plates 22 are arranged, so that the PE row and the N row of the bus bar outside the bus bar 14 can be protected, the connection strength of the bus duct 1 and the terminal box 2 is improved, the tightness of the side face of the bus bar 14 is ensured, the sealing gasket 24 is arranged, the bottom and the top of the joint of the bus duct 1 and the terminal box 2 are well sealed and protected, the whole box 21 is fully welded, and the tightness of the box 21 is good, so that after the bus duct 1 and the terminal box 2 are assembled, the tightness of the joint is ensured, external moisture is difficult to enter the box 21 through the joint of the bus duct 1 and the terminal box 2, the corrosion of the external moisture in the box 21 is avoided, potential safety hazards are avoided, the moisture-proof performance is good, and the whole assembly process is simple and convenient, and is beneficial to popularization and use;

The embodiment specifically solves the problems that after the bus duct 1 is connected with the terminal box 2, the tightness of the joint of the bus duct 1 and the terminal box 2 is often not guaranteed, external moisture easily enters the terminal box 2 through a gap at the joint, so that the terminal box 2 is damped and corroded by the moisture, potential safety hazards exist, and the use is affected.

While certain exemplary embodiments of the present utility model have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the utility model. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the utility model, which is defined by the appended claims.

Claims

1. The connecting structure of the bus duct and the terminal box is characterized by comprising the bus duct (1) and the terminal box (2) connected with the bus duct (1);

The bus duct (1) comprises a shell (11), two side plates (12) arranged at the end part of the shell (11) and used for being inserted into the terminal box (2), and a connecting hole (13) formed at the end part of the shell (11);

The terminal box (2) comprises a box body (21) with an opening on the side face, an N sealing plate (22) arranged on the rear side of the opening of the box body (21), a PE sealing plate (23) arranged on the front side of the opening of the box body (21), sealing gaskets (24) paved at the bottom and the top of the opening of the box body (21), a plurality of partition plates (25) arranged in the box body (21) and locking holes (26) formed in the top wall and the bottom wall of the box body (21);

The inside fastener (3) of installing of two connecting holes (13), fastener (3) screw in downwards is corresponding locking hole (26) inside for accomplish the connection of bus duct (1) and terminal box (2).

2. The connection structure of the bus duct and the terminal box according to claim 1, wherein bus bars (14) are inserted into the bus duct (1), and the bus bars (14) are sequentially a bus bar PE row, a bus bar A row, a bus bar B row, a bus bar C row and a bus bar N row from outside to inside.

3. The connecting structure of the bus duct and the terminal box according to claim 2, wherein an inserting gap into which the bus bar (14) can be inserted is formed between every two adjacent partition boards (25), and a cushion block (4) is further paved between the two adjacent partition boards (25).

4. A connection structure of a bus duct and a terminal box according to claim 3, wherein the spacer (25) is an epoxy spacer (25), and the pad (4) is an epoxy pad (4).

5. The connecting structure of the bus duct and the terminal box according to claim 1, wherein the number of the connecting holes (13) is four, the connecting holes are respectively arranged at four corners of the end part of the shell (11), and the number of the locking holes (26) is also four and is in one-to-one correspondence with the connecting holes (13).

6. The connection structure of a bus duct and a terminal box according to claim 5, wherein the fastening member (3) is provided as a bolt and is adapted to the connection hole (13) and the locking hole (26).

7. The connection structure of the bus duct and the terminal box according to claim 1, wherein the sealing gasket (24) is a silicon rubber sealing gasket (24), and a locking hole (26) into which the fastener (3) can be screwed is also formed in the sealing gasket (24).

8. The structure for connecting a bus duct and a terminal box according to claim 1, wherein the box body (21) is provided with all the plates by full welding.

9. The connecting structure of bus duct and terminal box according to claim 1, wherein the box body (21) is formed by splicing plate bodies, and the plate bodies are fixedly connected through bolts.