CN112751299A

CN112751299A - Bus duct unit and bus duct

Info

Publication number: CN112751299A
Application number: CN202011645374.0A
Authority: CN
Inventors: 陈庆周; 高灿; 曹斐; 陈志伟
Original assignee: Guangzhou Banjing Electric Power Copper Material Co ltd
Current assignee: Guangzhou Banjing Electric Power Copper Material Co ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-05-04

Abstract

The invention discloses a bus duct unit, which comprises a protective shell, insulating strips and conductive bars, wherein the insulating strips are arranged inside the protective shell, inserting grooves are formed in the insulating strips, the conductive bars are inserted into the inserting grooves of the insulating strips, the end parts of the conductive bars extend out of the insulating strips, and the conductive bars are not provided with connecting holes; in addition, under the same current transmission standard, the conducting bars and the conducting strips can be made narrower, and materials are saved.

Description

Bus duct unit and bus duct

Technical Field

The invention relates to a bus duct, in particular to a bus duct unit.

Background

With the emergence of modern engineering facilities and equipment, the power consumption of various industries is increased rapidly, particularly, the appearance of numerous high-rise buildings and large-scale factory workshops, the traditional cable serving as a power transmission lead cannot meet the requirement in a large-current transmission system, and the parallel connection of multiple cables brings inconvenience to on-site installation, construction and connection.

The bus duct is produced as a new distribution wire, compared with the traditional cable, the bus duct fully shows the superiority when transmitting heavy current, simultaneously, because of adopting new technology and new process, the contact resistance and temperature rise at the connecting position of two end parts of the bus duct and the splicing position of a branching port are greatly reduced, and high-quality insulating material is used in the bus duct, thereby improving the safety and reliability of the bus duct and leading the whole system to be more perfect.

The existing bus duct is made into a section with standard length, namely a bus duct unit, and the bus duct units are mutually connected to form the bus duct. When the bus ducts are connected, holes are punched in the end parts of the conductive bars or the conductive bars, or the conductive bars are fixed through bolts. This connection requires holes to be punched in the conductive bar or strip, which results in increased resistance and increased energy consumption of the bar or strip.

Disclosure of Invention

In order to overcome the defects of the prior art, an object of the present invention is to provide a bus duct unit that can realize electrical connection of a conductive bar or a conductive bar without punching.

In order to overcome the defects of the prior art, the second object of the present invention is to provide a bus duct which can realize electrical connection without punching a conductive bar or a conductive bar.

One of the purposes of the invention is realized by adopting the following technical scheme:

the utility model provides a bus duct unit, includes protective housing, insulating strip and electrically conducts the row, the insulating strip install in inside the protective housing, be equipped with the inserting groove on the insulating strip, electrically conduct arrange peg graft in on the inserting groove of insulating strip, electrically conduct the row tip and follow the insulating strip stretches out, electrically conduct and arrange not be equipped with the connecting hole.

Furthermore, each said conductive bar includes a main body, a bending portion and a connecting portion, said bending portion is located between said main body and said connecting portion, said main body is parallel to said connecting portion.

Furthermore, the number of the conducting bars is four, and four conducting bars are arranged in a pairwise opposite mode.

Further, the distance between the main bodies of the two opposite conductive bars is greater than the distance between the connection parts.

The second purpose of the invention is realized by adopting the following technical scheme:

the utility model provides a bus duct, the bus duct includes a plurality of above-mentioned bus duct units, the bus duct still includes the connector, the connector includes two at least insulation blocks, screw rod and nut, two the insulation block install in the screw rod, the nut install in the screw rod, two the electrically conductive row tip of bus duct unit is located two between the insulation block, the nut is relative the screw rod rotates and makes two the insulation block compresses tightly each other, makes two the electrically conductive row electric connection of bus duct unit.

Furthermore, the insulating block comprises an insulating main body and a conductive strip, the conductive strip is fixed on the insulating main body, the conductive strip is in contact with the two conductive bars of the bus duct units, so that the two conductive bars of the bus duct units are electrically connected, and the conductive strip is not provided with a connecting hole.

Further, the number of the conducting strips is two, and the screw rod is located between the two conducting strips.

Furthermore, the connector further comprises an insulating sleeve, the insulating sleeve is sleeved on the screw rod, and the insulating sleeve enables the conducting bars of the same bus duct unit to be mutually insulated.

Further, the connector further comprises a pressing plate, and the pressing plate is located between the nut and the insulating block.

Furthermore, the two electrically connected conductive bars are positioned on the same straight line.

Compared with the prior art, the end parts of the conductive bars of the two bus duct units are positioned between the two insulating blocks, the nuts rotate relative to the screw rods to enable the two insulating blocks to be pressed mutually, so that the conductive bars of the two bus duct units are electrically connected, the conductive bars and the conductive bars of the bus duct units can be electrically connected without punching, the resistance of the conductive bars is reduced, and the heat loss is reduced; in addition, under the same current transmission standard, the conducting bar can be made narrower, and materials are saved.

Drawings

FIG. 1 is a perspective view of a bus duct of the present invention;

fig. 2 is an internal structural schematic diagram of the bus duct of fig. 1;

fig. 3 is an enlarged view of fig. 2 at bus duct a;

fig. 4 is an enlarged view of fig. 2 at bus duct B;

fig. 5 is a perspective view of a connector of the bus duct of fig. 1;

fig. 6 is a schematic view of an internal structure of the connector of fig. 5 in a use state.

In the figure: 10. a bus duct unit; 11. a protective shell; 12. an insulating strip; 120. inserting grooves; 13. a conductive bar; 130. a bending section; 131. a connecting portion; 132. a main body; 20. a connector; 21. an insulating block; 210. an insulating body; 211. a conductive strip; 22. a screw; 23. pressing a plate; 24. a nut; 25. an insulating sleeve.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present, secured by intervening elements. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When an element is referred to as being "disposed on" another element, it can be directly disposed on the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Fig. 1 to 6 show a bus duct of the present invention, which includes a plurality of bus duct units 10 and a plurality of connectors 20. Two adjacent bus duct units 10 are connected by a connector 20.

Each bus duct unit 10 includes a protective case 11, an insulating strip 12, and a conductive bar 13. The insulating strip 12 is mounted inside the protective case 11. The number of insulating strips 12 is the same as the number of conductive bars 13. The insulating strip 12 is provided with an inserting groove 120, and the conductive bar 13 is inserted into the inserting groove 120 of the insulating strip 12. In the present embodiment, the number of the insulating strips 12 and the number of the conductive bars 13 are four, and four conductive bars 13 are disposed opposite to each other two by two. Each conductive bar 13 includes a main body 132, a bending portion 130 and a connecting portion 131. The main body 132, the bending portion 130, and the connecting portion 131 are integrally formed. The bending portion 130 extends from the main body 132, and the connecting portion 131 extends from the bending portion 130. The bending portion 130 is located between the main body 132 and the connecting portion 131. The main body 132 is inserted into the insertion groove 120. The distance between the main bodies 132 of the two oppositely disposed conductive bars 13 is greater than the distance between the connection portions 131. The conductive bar 13 is a copper bar or an aluminum bar.

Each connector 20 includes at least two dielectric blocks 21, a threaded rod 22, a pressure plate 23, a nut 24, and a dielectric sleeve 25. Each of the dielectric blocks 21 includes a dielectric body 210 and a conductive strip 211. The conductive strip 211 is fixed to the insulation body 210. The insulating body 210 is provided with a through hole. In the present embodiment, the number of the insulating blocks 21 is three, one in the middle and two on the outer side. Four conductive strips 211 are fixed to the middle dielectric block 21, and two conductive strips 211 are fixed to each side. Two conductive strips 211 are fixed on the insulating block 21 at the outer side, and the two conductive strips 211 are located at the same side of the insulating block 21. The via is located between two conductive strips 211. The insulating sleeve 25 is sleeved on the screw 22 to insulate the middle of the screw 22. The three insulating blocks 21 are mounted on the insulating sleeve 25 of the screw 22 through holes. The number of the pressing plates 23 is two, and the two pressing plates 23 are mounted on the screw 22 and respectively abutted against the outer insulating blocks 21. A nut 24 is mounted on the end of the screw 22. The conductive strip 211 is not provided with a connection hole.

When the bus duct is assembled, the connecting portions 131 of the corresponding conductive bars 13 of the two adjacent bus duct units 10 extend into the space between the two insulating blocks 21 of the connector 20, the connecting portions 131 contact the conductive bars 211, the nuts 24 are rotated to enable the pressing plates 23 to drive the insulating blocks 21 to be pressed tightly, and at the moment, the connecting portions 131 of the corresponding conductive bars 13 of the two adjacent bus duct units 10 are all in contact with the conductive bars 211 to achieve electrical connection. The two conductive bars 13 electrically connected are located on the same straight line. The conductive bar 13 and the conductive strips 211 of the bus duct unit 10 do not need to be punched, so that the resistance of the conductive bar 13 is reduced, and the thermal loss is reduced; in addition, under the same current transmission standard, the conductive bar 13 can be made narrower, and the material is saved.

The above examples only show some embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, variations and modifications can be made without departing from the spirit of the invention, and all equivalent modifications and changes can be made to the above embodiments according to the essential technology of the invention, which falls into the protection scope of the invention.

Claims

1. The utility model provides a bus duct unit, includes protective housing, insulating strip and electrically conducts row, its characterized in that: the insulating strip is installed inside the protective shell, an inserting groove is formed in the insulating strip, the conducting bar is inserted into the inserting groove of the insulating strip, the end portion of the conducting bar extends out of the insulating strip, and the conducting bar is not provided with a connecting hole.

2. The bus duct unit of claim 1, wherein: each conductive bar comprises a main body, a bending part and a connecting part, wherein the bending part is positioned between the main body and the connecting part, and the main body is parallel to the connecting part.

3. The bus duct unit of claim 2, wherein: the number of the conducting bars is four, and four conducting bars are arranged in pairs in an opposite mode.

4. The bus duct unit of claim 3, wherein: the distance between the main bodies of the two opposite conductive bars is greater than the distance between the connecting parts.

5. A bus duct, its characterized in that: the bus duct comprises a plurality of bus duct units according to any one of claims 1 to 4, and further comprises a connector, wherein the connector comprises at least two insulating blocks, a screw and a nut, the at least two insulating blocks are mounted on the screw, the nut is mounted on the screw, the end parts of the two conductive bars of the bus duct units are located between the two insulating blocks, and the nut rotates relative to the screw to enable the two insulating blocks to be pressed against each other, so that the conductive bars of the two bus duct units are electrically connected.

6. The bus duct of claim 5, wherein: the insulating block comprises an insulating main body and a conductive bar, the conductive bar is not provided with a connecting hole, the conductive bar is fixed on the insulating main body, and the conductive bar is in contact with the two conductive bars of the bus duct units to ensure that the two conductive bars of the bus duct units are electrically connected with the connecting hole.

7. The bus duct of claim 6, wherein: the number of the conducting strips is two, and the screw rod is located between the two conducting strips.

8. The bus duct of claim 7, wherein: the connector further comprises an insulating sleeve, the insulating sleeve is sleeved on the screw rod, and the insulating sleeve enables the same conductive rows of the bus duct units to be mutually insulated.

9. The bus duct of claim 5, wherein: the connector further comprises a pressing plate, and the pressing plate is located between the nut and the insulating block.

10. The bus duct of claim 5, wherein: the two electrically connected conducting bars are positioned on the same straight line.