CN212462708U

CN212462708U - Bus duct connector

Info

Publication number: CN212462708U
Application number: CN202020867288.3U
Authority: CN
Inventors: 李贵祥; 万文胜
Original assignee: Guizhou Changyu Electric Power & Electrical Co ltd
Current assignee: Guizhou Changyu Electric Power & Electrical Co ltd
Priority date: 2020-05-22
Filing date: 2020-05-22
Publication date: 2021-02-02
Anticipated expiration: 2030-05-22

Abstract

The utility model discloses a bus duct connector, belonging to the power transmission and distribution device; aims to provide an electric connector with simple structure, convenient installation and reliable copper bar connection. The clamping body consists of an insulating side plate and a plurality of insulating partition plates fixed with a conductive plate; the surface of the insulating partition plate (3) is provided with a T-shaped groove (3-2) in which a barrier strip (3-4) is arranged, and the groove walls at two sides of the T-shaped groove extend towards the surface of the insulating partition plate (3) and respectively form a guide strip (3-1) and a positioning strip (3-3) on the surface; the back of the insulating partition plate (3) is provided with a first guide groove (3-6) and a first positioning groove (3-5); the back of the insulating side plate (2) is provided with a second guide groove (2-1) and a second positioning groove (2-2); two through holes for the bolts (6) to pass through are formed in the clamping plate (1), the insulating side plate (2) and the insulating partition plate (3). The utility model discloses press from both sides tightly reliably, contact resistance is little, is a bus duct connector.

Description

Bus duct connector

Technical Field

The utility model relates to an electric connector, in particular to a bus duct connector; belongs to a power transmission and distribution device.

Background

The bus duct has the advantages of compact structure, convenient use, large carrying capacity and the like, and is widely applied to power transmission and distribution systems of large commercial squares, buildings and hospitals.

In the wiring construction process, each section of bus duct is connected through an electric connector. At present, a widely used electrical connector is generally composed of an insulating side plate positioned between two clamping plates, a plurality of insulating partition plates fixed with a conductive plate, and bolts for connecting and locking the clamping plates, the insulating side plate and the insulating partition plates; such as "CN 208256929U", "CN 210111545U", etc. These connectors, although relatively simple, are subject to the following drawbacks:

1) adopt a bolt to establish ties and lock, take place to warp or the thickness size leads to the clamp force inhomogeneous easily when the deviation appears in the generating line copper bar to cause the area of contact between current conducting plate and the generating line copper bar not enough, contact resistance increases, generates heat easily.

2) Because the generating line copper bar is located the both sides of bolt, need trompil on the current conducting plate, consequently not only the structure is more loose huge, and current conducting plate copper product consumption is big, with high costs, has also reduced the effective area of contact of current conducting plate moreover.

3) The current conducting plate is fixed in the insulating barrier surface through the mode of adhesion, does not have its location, if there is the exogenic action then probably to take place to shift after being heated to cause with the lapped area reduction of generating line copper bar, contact resistance increase.

4) The bus copper bars at the two ends of the connector are not limited and guided, so that the installation is difficult, and the bus copper bars are easy to shake under the action of external force; not only influences the use, but also has potential safety hazard.

It can be seen that the conventional busway connector has the above-mentioned many drawbacks, and needs to be improved.

Disclosure of Invention

To the above-mentioned defect that prior art exists, the utility model aims at providing a reliable bus duct connector is connected to simple structure, simple to operate, copper bar.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the clamping device comprises a clamping body positioned between two clamping plates, wherein the clamping body is composed of a plurality of insulating partition plates and at least one insulating side plate, wherein the surfaces of the insulating partition plates are fixed with conductive plates, and the surfaces of the insulating partition plates are arranged in parallel towards the back direction of the insulating side plates; the surface of the insulating partition plate is provided with a T-shaped groove matched with the conductive plate, a stop strip is arranged at one end port of the T-shaped groove, two side groove walls of the T-shaped groove extend towards the surface direction of the insulating partition plate and respectively form a guide strip and a positioning strip on the surface of the groove opening; a first guide groove and a first positioning groove which are matched with the guide strip and the positioning strip are respectively arranged at corresponding positions on the back surface of the insulating partition plate; the corresponding positions of the back of the insulating side plate are respectively provided with a second guide groove and a second positioning groove which are matched with the guide strip and the positioning strip; the positions, corresponding to the two sides of the T-shaped groove, of the clamping plates, the insulating side plates and the insulating partition plates are respectively provided with a through hole, and the two bolts correspondingly penetrate through the two groups of through holes to clamp the two clamping plates, the insulating side plates and the insulating partition plates.

In the technical scheme, the back of the clamping plate is provided with two reinforcing ribs, and the two through holes on the clamping plate are positioned between the two reinforcing ribs; the surface of the splint is provided with a plurality of convex edges.

Compared with the prior art, the utility model discloses owing to adopted above-mentioned technical scheme, consequently have following advantage:

1) two bolts are adopted for connection and locking, so that the bus copper bar is stressed uniformly and is more stably and reliably contacted with the current conducting plate.

2) The bus copper bar is positioned between the two bolts, so that holes do not need to be formed in the current conducting plate; the processing technology of the current-conducting plate is simplified, the conductive copper material is saved, and the effective contact area of the current-conducting plate is increased.

3) The current conducting plate is inlaid in the T-shaped groove, and even if the current conducting plate is not displaced under the action of external force, enough lap joint area and contact resistance can be guaranteed to be reserved between the current conducting plate and the bus copper bar.

4) The T-shaped groove can also guide and limit the bus copper bar, so that the bus copper bar is convenient to install and can be prevented from shaking under the action of external force, and the potential safety hazard that the bus copper bar is dislocated and separated is eliminated.

5) Because the positioning strips and the first positioning grooves are arranged on the insulating partition plates, not only can the accurate positioning between the insulating partition plates and between the insulating side plates and the insulating partition plates be ensured, but also the conductive plates can be prevented from being separated from each other due to the fact that the installation direction is wrong (such as the notch at one end of the T-shaped groove is downward), and the installation and connection efficiency of the busbar is improved.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a cross-sectional view A-A of FIG. 1;

FIG. 3 is a schematic structural view of the insulating spacer of the present invention;

FIG. 4 is a cross-sectional view B-B of FIG. 3;

FIG. 5 is a cross-sectional view taken at C-C of FIG. 3;

FIG. 6 is a schematic view of the structure of the insulated side panel of the present invention;

fig. 7 is a cross-sectional view taken along line D-D in fig. 6.

In the figure: the device comprises a clamping plate 1, an insulating side plate 2, a second guide groove 2-1, a second positioning groove 2-2, an insulating partition plate 3, a guide strip 3-1, a T-shaped groove 3-2, a positioning strip 3-3, a barrier strip 3-4, a first positioning groove 3-5, a first guide groove 3-6, a conductive plate 4, a busbar bar 5, a bolt 6, a convex ridge 7, a reinforcing rib 8 and a nut 9.

Detailed Description

The invention will be further described with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1-7: the clamping body is located between two splint 1, the clamping body comprises an insulating sideboard 2, four insulating barrier 3 that the surface is fixed with current conducting plate 4, and the surface of each insulating barrier 3 all is towards insulating sideboard 2's back direction and parallel arrangement. The surface of the insulating partition plate 3 is provided with a T-shaped groove 3-2, a notch at one end of the T-shaped groove is provided with a barrier strip 3-4 for blocking the conductive plate 4 from falling off, and the conductive plate 4 is embedded and fixed at the bottom of the T-shaped groove 3-2 (the thickness of the conductive plate 4 is less than the depth of the T-shaped groove 3-2, but is greater than the height of the barrier strip 3-4). One side of the T-shaped groove 3-2 extends towards the surface of the insulating partition board 3 to form a guide strip 3-1 at the groove opening, and the other side of the T-shaped groove 3-2 extends towards the surface of the insulating partition board 3 to form a positioning strip 3-3 at the groove opening; the corresponding position of the back of the insulating partition plate 3 is provided with a first guide groove 3-6 matched with the guide strip 3-1 and a first positioning groove 3-5 matched with the positioning strip 3-3. The back of the insulating side plate 2 is provided with a second guide groove 2-1 matched with the guide strip 3-1 and a second positioning groove 2-2 matched with the positioning strip 3-3.

Through holes (not marked in the figure) are formed in the clamping plates 1, the insulating side plates 2 and the insulating partition plates 3 corresponding to the two sides of the T-shaped groove 3-2, and two bolts 6 correspondingly penetrate through the two groups of through holes and clamp the two clamping plates 1, the insulating side plates 2 and the four insulating partition plates 3 in series through nuts 9 respectively.

In order to increase the rigidity of the splint 1, two reinforcing ribs 8 are distributed on the back surface of the splint 1. In order to facilitate quick installation, the two through holes on the clamping plate 1 are located between the two reinforcing ribs 8, and the nut 9 is a square-headed nut matched with a groove (not marked in the figure) formed by the two reinforcing ribs 8.

In order to facilitate the processing and to apply force uniformly, a plurality of convex ridges 7 are arranged on the surface of the clamping plate 1, and the arrangement direction of each convex ridge 7 is vertical to and crossed with the arrangement direction of each bus copper bar 5.

As shown in fig. 1: when in use, the two nuts 9 are loosened, the busbar copper bars 5 of one section of bus duct (not shown in the figure) are correspondingly inserted into the T-shaped grooves 3-2 of the insulating partition plates 3 from the upper part, and the busbar copper bars 5 of the other section of bus duct (not shown in the figure) are correspondingly inserted into the T-shaped grooves 3-2 of the insulating partition plates 3 from the lower part until the busbar copper bars 5 inserted from the upper and lower directions are abutted; and then adjusting the position of the clamping body, ensuring that the insertion depths of the bus copper bars 5 of the two sections of bus ducts are approximately equal, and screwing the two nuts 9.

Claims

1. A bus duct connector comprises a clamping body positioned between two clamping plates, wherein the clamping body is composed of a plurality of insulating partition plates and at least one insulating side plate, conductive plates are fixed on the surfaces of the insulating partition plates, and the surfaces of the insulating partition plates are arranged in parallel towards the back direction of the insulating side plates; the method is characterized in that:

the surface of the insulating partition plate (3) is provided with a T-shaped groove (3-2) matched with the current conducting plate (4), a stop strip (3-4) is arranged at one end port of the T-shaped groove, the groove walls at two sides of the T-shaped groove (3-2) extend towards the surface direction of the insulating partition plate (3) and respectively form a guide strip (3-1) and a positioning strip (3-3) on the surface of a groove opening; a first guide groove (3-6) and a first positioning groove (3-5) which are matched with the guide strip (3-1) and the positioning strip (3-3) are respectively arranged at corresponding positions on the back surface of the insulating partition plate (3); the corresponding positions of the back of the insulating side plate (2) are respectively provided with a second guide groove (2-1) and a second positioning groove (2-2) which are matched with the guide strip (3-1) and the positioning strip (3-3);

through holes are respectively formed in the clamping plates (1), the insulating side plates (2) and the insulating partition plates (3) corresponding to the two sides of the T-shaped groove (3-2), and two bolts (6) correspondingly penetrate through the two groups of through holes to clamp the two clamping plates (1), the insulating side plates (2) and the insulating partition plates (3).

2. The busway connector of claim 1, wherein: the back of splint (1) has two strengthening ribs (8), and two on splint (1) the through-hole is located between two strengthening ribs (8).

3. A busway connector according to claim 1 or 2, wherein: the surface of the splint (1) is provided with a plurality of convex ridges (7).