CN111129793A

CN111129793A - A conductor connection structure

Info

Publication number: CN111129793A
Application number: CN202010013206.3A
Authority: CN
Inventors: 蒋文功; 黄克锋; 周忠
Original assignee: Wetown Electric Group Co Ltd
Current assignee: Wetown Electric Group Co Ltd
Priority date: 2020-01-07
Filing date: 2020-01-07
Publication date: 2020-05-08

Abstract

According to the conductor connecting structure, the square head welded and connected to the end part of the conductor is provided with the nut positioning piece in a matching way through the hollow inner hole, four flexible connecting sheets are arranged on four sides of the outer side of the square head and fixedly connected with the nut after sequentially penetrating through the connecting sheets and the wall part of the square head through the bolts, and the other ends of the four connecting sheets are fixedly connected with the end part of another section of conductor into a whole in the same way through another welding head.

Description

Conductor connecting structure

Technical Field

The present invention relates to a conductor connection structure.

Background

The power transmission structure of the power industry is usually composed of a plurality of straight line segments and elbow units which are fixedly connected and combined through joint devices, for example, a bus system is usually composed of a plurality of bus products which are fixedly connected and conducted through the joint connection structure, the joint connection structure of the traditional tubular bus is usually composed of single conductors with rectangular cross sections which are fixedly connected through welding, the intercepting capacity of the single conductors is limited, the size in the thickness direction is too large, the production and processing process is inconvenient, the bus system is not allowed to be too wide and too thick in the appearance structural characteristics, particularly when position error and deformation error compensation requirements exist, the structure is complex, the difficulty coefficient meeting the structural performance and parameter requirements is increased, and the joint structure in the prior art is difficult to meet the multiple use requirements.

Disclosure of Invention

The invention aims to solve the technical problem of providing a conductor connecting structure which is simple in structure, convenient to operate, reliable in connection and simplified in process.

The conductor connection structure of the present invention is characterized in that: the welding head is hollow and tubular, a nut positioning piece is arranged in the inner cavity of each welding head, a plurality of nuts are distributed on the outer surface of the nut positioning piece, the distribution positions of the nuts correspond to the positions of the welding head and through mounting holes in the connecting piece, and bolts penetrating through the mounting holes are matched and connected with the nuts to tightly press the connecting piece on the outer mounting surface of the welding head;

the cross section of the welding head is a regular quadrangle; each outer mounting surface of each regular quadrilateral welding head is connected with one end of each connecting sheet;

the part of the nut positioning piece inserted into the inner cavity of the welding head is cylindrical, and the nut is embedded in a nut positioning hole in the outer wall of the cylindrical structure;

the nut positioning piece also comprises a flange sheet which is positioned at the end part of the insertion part and is used for being matched and connected with the end surface of the welding head;

each connecting sheet is a flexible conductor;

the nut is a T-shaped square nut consisting of a section of cylindrical part and a section of square end part, the cylindrical part is matched and connected with the positioning hole on the nut positioning piece to limit the position of the nut in the axial direction and the circumferential direction, and the edge of the square end part is in inserted fit with the axial square groove on the inner wall of the welding head to limit the rotation of the nut;

the nut positioning piece is made of plastic material;

the welding head is an integral structure formed by removing partial materials of the sectional material through a mechanical cutting processing technology;

a butterfly spring washer is arranged between the contact surface of the bolt and the connecting piece;

the conductor is a tubular bus.

Drawings

FIG. 1 is a schematic perspective view of a conductor connecting structure for a tubular bus bar according to an embodiment of the present invention;

FIG. 2 is a schematic plan view of a conductor connecting structure for a tubular bus bar according to an embodiment of the present invention;

FIG. 3 is a left side view of FIG. 2;

FIG. 4 is a schematic sectional view A-A of FIG. 2;

FIG. 5 is a perspective view of a connector when the conductor connecting structure according to the embodiment of the present invention is used for a tubular bus bar;

FIG. 6 is a schematic perspective view of a nut positioning member when the conductor connection structure is used in a tubular bus bar according to an embodiment of the present invention;

FIG. 7 is a perspective view of a nut when the conductor connecting structure according to the embodiment of the present invention is used for a tubular bus bar;

fig. 8 is a schematic perspective view illustrating a nut inserted in a nut positioning member when the conductor connection structure is applied to a tubular bus bar according to the embodiment of the present invention;

fig. 9 to 10 are schematic perspective views illustrating the nut positioning member, the connector and the tubular bus in cooperation with each other when the conductor connecting structure is applied to the tubular bus according to the embodiment of the present invention;

fig. 11 is a perspective view of the conductor connecting structure of the embodiment of the invention after the connecting head is fixedly connected with the tubular bus bar when the conductor connecting structure is applied to the tubular bus bar;

fig. 12 is a schematic cross-sectional view of a connector section when the conductor connecting structure of the embodiment of the present invention is used for a tubular bus bar.

Detailed Description

As shown in the figure, the conductor is a tubular bus 1 as an embodiment, the main structure comprises a plurality of connecting conductors 3 and a welding head 2 which is fixedly connected with the end parts of two adjacent sections of tubular buses 1 through welding and has a polygonal cross section, a hollow inner hole is arranged in the welding head 2 along the axial direction, a nut positioning piece 4 is inserted in the hollow inner hole in a matched manner, and the nut positioning piece 4 is inserted into the hollow inner hole of the welding head 2 through a cylindrical section 41; the outer surface of the welding head 2 forms a plurality of outer mounting surfaces, a plurality of connecting sheets 3 are correspondingly and fixedly connected through the outer mounting surfaces, two ends of each connecting sheet 3 are respectively and fixedly connected to the outer mounting surfaces of the welding heads at the end parts of two adjacent tubular buses, and the two adjacent tubular buses are fixedly connected and conducted.

The welding head 2 in this embodiment adopts an integral structure formed by removing partial materials from a cylindrical tubular section through a mechanical cutting process, the cylindrical tubular section has a hollow inner hole with a cross section in a structure like a Chinese character 'mi', a welding section of the outer rear section of the section fixedly connected with a tubular bus is kept in a cylindrical shape, a square head structure with a square cross section is formed after partial materials are removed from the outer part of the front section through milling, the outer surface of the welding head 2 forms outer mounting surfaces in four directions, four connecting pieces 3 are correspondingly and fixedly connected with the outer mounting surfaces of the welding head at the end parts of two adjacent tubular buses, and two ends of the four connecting pieces 3 are respectively and fixedly connected with the outer mounting surfaces of the welding head at the end parts of the two adjacent tubular buses.

A plurality of nut positioning holes 42 are respectively formed in the four directions of the outer wall of the cylindrical section 41 of the nut positioning piece 4, and a nut 7 is respectively embedded in each nut positioning hole 42; four surfaces corresponding to four directions of the cylindrical section 41 of the nut positioning piece 4 outside the welding head 2 are respectively provided with mounting holes 21 which are matched with the positions of the nut positioning holes 42 and penetrate through the four surfaces, the outer sides of the four surfaces are respectively matched and connected with one ends of four connecting pieces 3, the connecting pieces 3 and one side wall part of the welding head 2 are fixedly connected with nuts 7 embedded on the nut positioning piece 4 after penetrating through the connecting pieces 3 and one side wall part of the welding head 2 from the outside to the inside through bolts 5, and the connecting pieces 3, the welding head 2 and the tubular bus 1 are connected into a whole; the other ends of the four connecting sheets 3 are fixedly connected with the end part of the other section of the tubular bus into a whole in the same way through another welding head;

furthermore, the nut 7 is a T-shaped square nut composed of a section of a cylinder 71 and a section of a square end 72, the cylinder 71 is fixedly connected with the positioning hole 42 on the nut positioning piece 4 through the outer circumferential surface in an interference fit manner, the square end 72 is mutually matched and limited with the axial square groove 23 on the hollow inner hole of the welding head 2, and the nut 7 cannot follow up rotation when the bolt 5 passes through the connecting piece 3 and one side wall part of the welding head 2 from outside to inside and is tightly connected with the internal thread hole of the nut 7 embedded on the nut positioning piece 4, so that the operation is convenient;

threaded holes 22 are respectively formed between four top corners of the meter-shaped structure of the welding head 2, a flange sheet 43 is arranged at the end part of the nut positioning piece 4, through holes are respectively formed in the flange sheet 43 and the positions of the threaded holes 22 between the four top corners of the meter-shaped structure, the flange sheet 43 and the end surface of the welding head 2 are fixedly connected with the threaded holes through screws, and the connecting strength is high.

The four connecting sheets 3 are flexible conductors, and can meet the requirement of adjusting the axial clearance of the tubular bus.

The nut positioning piece 4 is an integral structure formed by plastic materials through a one-step forming process, is convenient to produce, process, install, connect and operate, light in weight, low in cost and simplified in process;

and a belleville spring washer 6 is arranged between the contact surface of the bolt 5 and the connecting sheet 3, so that the connection is stable and reliable and cannot be loosened.

According to the conductor connecting structure, the square head welded and connected to the end part of the tubular bus is provided with the nut positioning piece through the hollow inner hole in a matching mode, four flexible connecting sheets are arranged on four sides of the outer side of the square head and fixedly connected with the nut after sequentially penetrating through the connecting sheets and the wall part of the square head through the bolts, the other ends of the four connecting sheets are fixedly connected with the end part of the other section of the tubular bus into a whole in the same mode through the other welding head, multiple use requirements can be met, the size is small, the occupied space is small, the structure is simple, the operation is convenient, the connection is reliable, and.

Claims

1. A conductor connection structure, characterized in that it comprises two welding heads (2) fixedly connected to the ends of two adjacent conductors and having a polygonal cross-section, and two welding heads (2) fixedly connected to a plurality of outer mounting surfaces of the welding heads (2). The multi-piece connecting piece (3) above, the welding head (2) is a hollow tubular shape, a nut positioning member (4) is arranged in the inner cavity of each welding head (2), and many nut positioning members (4) are distributed on the outer surface. Nuts (7), the distribution positions of the nuts (7) correspond to the positions of the through mounting holes (21) on the welding head (2) and the connecting piece (3), and the bolts (5) passing through the mounting holes (21) The connection piece (3) is pressed against the outer mounting surface of the welding head (2) by cooperating with the nut (7).

2. The conductor connection structure according to claim 1, characterized in that: the cross section of the welding head (2) is a regular quadrilateral; each outer mounting surface of each regular quadrilateral welding head (2) is connected to each connecting piece ( 3) at one end.

3. The conductor connection structure according to claim 1 or 2, characterized in that: the part of the nut positioning member (4) inserted into the inner cavity of the welding head (2) is cylindrical, and the nut (7) is embedded in the cylinder into the nut positioning hole (42) on the outer wall of the like structure.

4 . The conductor connection structure according to claim 1 , wherein the nut positioning member ( 4 ) further comprises a method at the end of the insertion portion for connecting with the end face of the welding head ( 2 ). 5 . Orchid (43).

5 . The conductor connection structure according to claim 1 , wherein each piece of the connecting piece ( 3 ) is a flexible conductor. 6 .

6 . The conductor connection structure according to claim 1 , wherein the nut ( 7 ) is a T-shaped square nut consisting of a cylindrical body ( 71 ) and a square end ( 72 ). 7 . The cylinder (71) is connected with the positioning hole (42) on the nut positioning member (4) to define the position of the nut (7) in the axial and circumferential directions, and the edge of the square end (72) is connected to the welding head (2) The axial square groove (23) on the inner wall is inserted and fitted to limit the rotation of the nut (7).

7 . The conductor connection structure according to claim 1 , wherein the nut positioning member ( 4 ) is made of plastic material. 8 .

8 . The conductor connection structure according to claim 1 , wherein the welding head ( 2 ) is an integral structure formed by removing part of the material of the profile through a machining process. 9 .

9 . The conductor connection structure according to claim 8 , wherein a butterfly spring washer ( 6 ) is arranged between the bolt ( 5 ) and the contact surface of the connecting piece ( 3 ). 10 .

10 . The conductor connection structure according to claim 1 , wherein the conductor is a tubular bus bar ( 1 ). 11 .