CN112086763B

CN112086763B - Joint assembly

Info

Publication number: CN112086763B
Application number: CN202010857311.5A
Authority: CN
Inventors: 郭威; 钟璨夷; 李剑; 郑剑毅; 周成龙; 黄恺; 杨阔; 陈晓芳; 罗振华; 黄梓华; 彭诗敏; 罗定平; 鄢园; 陈勇滨; 郭丹; 陈佑健
Original assignee: State Grid Fujian Electric Power Co Ltd; Xiamen Power Supply Co of State Grid Fujian Electric Power Co Ltd
Current assignee: State Grid Fujian Electric Power Co Ltd; Xiamen Power Supply Co of State Grid Fujian Electric Power Co Ltd
Priority date: 2020-08-24
Filing date: 2020-08-24
Publication date: 2022-05-17
Anticipated expiration: 2040-08-24
Also published as: CN112086763A

Abstract

The invention provides a connector assembly suitable for being mounted to a bus bar screw of a station power supply, comprising: the connector comprises a connector seat and an insulator, wherein the insulator surrounds the outside of the conductor, the insulator is radially spaced apart from the conductor by a distance and defines a ring slot for insertion, and a threaded hole capable of being in threaded connection with a bus bar screw is formed in one end of the conductor, which is far away from the opening of the ring slot for insertion; and the two ends of the cable piece are respectively provided with a connector piece, and the connector pieces can be inserted into the cable piece from the openings of the ring inserting grooves and can electrically connect the cable piece and the electric conductors. By applying the technical scheme, the joint assembly suitable for the bus bar screw installed to the station power supply can be realized.

Description

Joint assembly

Technical Field

The invention relates to the field of power supply systems for transformer substation stations, in particular to a joint assembly suitable for a bus screw mounted to a power supply for a substation.

Background

The station power supply system of the transformer substation is the heart of the transformer substation and is responsible for power supply of low-voltage alternating-current and direct-current power utilization equipment of the whole substation. The station power supply ATS switching device is an important part of a station power supply system capable of normally operating, and can realize automatic switching of a dual-power supply system. However, once the station power utilization ATS switching device needs to be repaired or replaced, the incoming line power supply needs to be disconnected, the whole load of the 400V ac bus for the station connected with the device is stopped, most of the equipment in the station loses the working power supply and stops working, and even if the important load of double-loop power supply is adopted, the original double-loop power supply is changed into single-loop power supply. Therefore, the existing maintenance and replacement technology of the station power utilization ATS switching device can greatly reduce the power supply reliability and even possibly cause the damage of the loss of the total station alternating current.

Disclosure of Invention

The invention aims to overcome the defects in the prior art, provides a bus bar screw utilizing a station power supply system, designs a connector assembly to replace an original nut, quickly bypasses the station power supply ATS switching device when the station power supply ATS switching device needs to be overhauled or replaced, and quickly connects the connector assembly to the bus bar screws on two sides of the ATS switching device, so that the station power supply system can continuously and safely operate across the damaged ATS device, the load loss of the station power supply system can be avoided, meanwhile, the reliable guarantee is provided for the normal operation of a transformer substation and a power grid system, and the power supply reliability is greatly improved.

In order to solve the above technical problem, the present invention provides a connector assembly adapted to be mounted to a bus bar screw of a station power supply, comprising:

the connector comprises a connector seat and an insulator, wherein the insulator surrounds the outside of the conductor, the insulator is radially spaced apart from the conductor by a distance and defines a ring slot for insertion, and a threaded hole capable of being in threaded connection with a bus bar screw is formed in one end of the conductor, which is far away from the opening of the ring slot for insertion;

and the two ends of the cable piece are respectively provided with a connector piece, and the connector pieces can be inserted into the cable piece from the openings of the ring inserting grooves and can electrically connect the cable piece and the electric conductors.

Preferably, the conductor includes a connection portion and a conductive portion integrally provided with the connection portion, the screw hole is provided in the connection portion, and the insulator surrounds the conductive portion.

Preferably, the radial dimension of the connecting portion is larger than the radial dimension of the conductive portion, and the insulator and the conductive portion are provided on a surface of the connecting portion away from the screw hole.

Preferably, the outer peripheral wall of the connecting portion is a regular polygon.

Preferably, the electrical conductor is made of copper and the insulator is made of plastic.

Preferably, the inner wall that supplies to insert the annular groove still is provided with the anti-rotating groove, should prevent the rotating groove along supply the axial extension of annular groove, the joint spare is provided with prevents changeing protrudingly, works as the joint spare embedding when supplying the annular groove, prevent changeing protruding embedding prevent in the rotating groove and prevent the joint spare is relative the circumferential direction of joint seat.

Preferably, the joint part comprises a joint insulating part and a joint conductive part, the joint conductive part is electrically connected with the cable part, the joint insulating part is sleeved outside the joint conductive part, and the anti-rotation protrusion is arranged on the joint insulating part.

Preferably, the joint insulating member is further provided with an extending hole into which the conductor extends, the conductor extends into and abuts against the joint conductive member, and the conductor is electrically connected with the joint conductive member.

Preferably, an external thread is arranged at one end of the conductive part connected with the connecting part, an internal thread hole is axially formed in the insulator, and the conductive part can penetrate through the internal thread hole to extend into the insulator and is screwed to the insulator.

Compared with the prior art, the technical scheme of the invention has the following beneficial effects:

the invention utilizes the bus screw of the station power supply system to design a joint component to replace the original nut, quickly bypasses the station power ATS switching device when the station power ATS switching device needs to be overhauled or replaced, has simple structure, is plug and play, is convenient to carry, has strong applicability, can be used for overhauling and replacing the ATS switching device of each transformer substation, avoids station load loss, provides reliable guarantee for the normal operation of the transformer substation and the power grid system, and greatly improves the power supply reliability.

Drawings

Fig. 1 is a schematic perspective view illustrating a socket screwed to a busbar screw according to a preferred embodiment of the present invention;

FIG. 2 is a perspective view of the adapter of the preferred embodiment of the present invention showing the threaded holes;

fig. 3 is a perspective view of another perspective of a connector housing in accordance with a preferred embodiment of the present invention, showing a conductive portion and a ring-receiving groove;

FIG. 4 is a perspective view of the connection of the socket and the socket of the connector assembly of the preferred embodiment of the present invention;

fig. 5 is an exploded view of the cable member and the connector member in the preferred embodiment of the present invention;

fig. 6 is a connection structure of the electric conductor and the insulator of the socket in the preferred embodiment of the present invention.

Detailed Description

The invention is further described with reference to the following figures and detailed description.

Certain directional terms used hereinafter to describe the drawings, such as "inner", "outer", "above", "below", and other directional terms, will be understood to have their normal meaning and refer to those directions as they normally relate to when viewing the drawings. Unless otherwise indicated, the directional terms described herein are generally in accordance with conventional directions as understood by those skilled in the art.

The terms "first," "second," and the like, as used herein, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another.

Referring to fig. 1-6, a connector assembly 100 suitable for a bus bar screw 200 installed to a station power supply, the connector assembly 100 includes a connector base 1, a cable member 2 and a connector member 3, the connector base 1 includes an electrical conductor 11 and an insulator 12 surrounding the electrical conductor 11, the insulator 12 radially separates the electrical conductor 11 by a distance and defines a ring slot 13 for insertion, the electrical conductor 11 is further provided with a threaded hole 14 capable of being screwed with the bus bar screw 200 at an end far from an opening of the ring slot 13 for insertion, and the connector base 1 can be directly and rapidly screwed to the bus bar screw 200.

The connectors 3 are respectively disposed at both ends of the cable 2, and the connectors 3 can be inserted into the ring slot 13 from the opening thereof to electrically connect the cable 2 to the conductor 11.

When the station power utilization ATS switching device needs to be overhauled or replaced, as long as the joints 1 are respectively screwed on the female screw 200 of the power inlet end and the power outlet end of the ATS switching device, and through the joints 3 at the two ends of the cable piece 2 are respectively plugged into the joints 1, the station power utilization ATS switching device can be quickly bypassed when needing to be overhauled or replaced, in some simple replacements, the two ends of the circuit breaker can be respectively connected with the cable piece 2, the joints 3 of the cable piece 2 are respectively connected to the joints 1 on the female screw 200 of the power inlet end and the power outlet end of the ATS switching device, and the circuit breaker can be a 4-pole alternating current air switch.

The conductive body 11 includes a connection portion 111 and a conductive portion 112 integrally provided with the connection portion 111, in this embodiment, the connection portion 111 and the conductive portion 112 are integrally molded, the screw hole 14 is provided on the connection portion 111, and the insulator 12 surrounds the conductive portion 112. The radial dimension of the connecting portion 111 is greater than the radial dimension of the conductive portion 112, the conductive portion 112 is overlapped with the axis of the connecting portion 111, the insulator 12 and the conductive portion 112 are disposed on a surface of the connecting portion 111 away from the threaded hole 14, and specifically, the insulator 12 and the conductive portion 112 are disposed concentrically.

Referring to fig. 6, a connection structure of the conductive body 11 and the insulator 12 of the joint base 1 is shown, wherein one end of the conductive portion 112 connected to the connecting portion 111 is provided with an external thread 113, the insulator 12 is provided with an internal thread hole along the axial direction, and the conductive portion 112 can extend into the insulator 12 through the internal thread hole and is screwed to the insulator 12.

In this embodiment, the outer circumferential wall of the connecting portion 111 is a regular polygon, specifically, a regular hexagon, and the maintenance personnel can lock the connecting portion on the busbar screw 200 through an installation tool. In the present embodiment, the conductor 11 is made of copper, and the insulator 12 is made of plastic.

The inner wall that supplies insert ring groove 13 still is provided with prevents that slot 131, and this prevents that slot 131 along supply the axial extension of slot ring groove, joint 3 is provided with prevents changeing protruding 31, works as the embedding of joint 3 during supplying insert ring groove 13, prevent changeing protruding 31 embedding prevent in the slot 131 and prevent joint 3 is relative the circumferential direction of joint seat 1.

The connector 3 comprises a connector insulating part 32 and a connector conducting part 33, the connector conducting part 33 is electrically connected with the cable part 2, the connector insulating part 32 is sleeved outside the connector conducting part 33, the anti-rotation bulge 31 is arranged on the connector insulating part 32, the connector insulating part 32 is further provided with an extending hole for the conductor 11 to extend into, the conductor 11 extends into and abuts against the connector conducting part 33, and the conductor 11 is electrically connected with the connector conducting part 33. The connector insulator 32 includes a socket 321 and a plug 322, the socket 321 is disposed at one end of the cable 2, and the socket 321 and the plug 322 are correspondingly clamped and enclose the connector conductor 33 therein.

The above description is only a preferred embodiment of the present invention, but the design concept of the present invention is not limited thereto, and any person skilled in the art can make insubstantial changes in the technical scope of the present invention within the technical scope of the present invention, and the actions infringe the protection scope of the present invention are included in the present invention.

Claims

1. The utility model provides a joint Assembly, is applicable to and installs original nut in order to replace female screw of arranging of the female screw of arranging of power to the station, its characterized in that includes:

the two ends of the cable piece are respectively provided with a connector piece, and the connector pieces can be inserted into the cable piece from the openings of the ring inserting grooves and can electrically connect the cable piece with the electric conductors;

when the station power utilization ATS switching device needs to be overhauled or replaced, the connector bases are respectively screwed to the power inlet end and the power outlet end of the station power utilization ATS switching device, and the connector pieces at the two ends of the cable piece are respectively plugged into the connector bases to bypass the station power utilization ATS switching device.

2. The connector assembly of claim 1, wherein: the electric conductor comprises a connecting part and a conductive part which is integrated with the connecting part, the threaded hole is arranged on the connecting part, and the insulator surrounds the conductive part.

3. The connector assembly of claim 2, wherein: the radial dimension of the connecting part is larger than that of the conductive part, and the insulator and the conductive part are arranged on one surface, far away from the threaded hole, of the connecting part.

4. The connector assembly of claim 3, wherein: the periphery wall of the connecting part is a regular polygon.

5. The connector assembly of claim 3, wherein: the conductor is made of copper and the insulator is made of plastic.

6. The connector assembly of claim 1, wherein: the inner wall that supplies the insert ring groove still is provided with prevents the rotating groove, this prevents the rotating groove along supply the axial extension of insert ring groove, the joint spare is provided with prevents changeing protrudingly, works as the joint spare embedding when supplying the insert ring groove, prevent changeing protruding embedding prevent in the rotating groove and prevent the joint spare is relative the circumferential direction of joint seat.

7. The connector assembly of claim 6, wherein: the joint piece comprises a joint insulating piece and a joint conductive piece, the joint conductive piece is electrically connected with the cable piece, the joint insulating piece is sleeved outside the joint conductive piece, and the anti-rotation bulge is arranged on the joint insulating piece.

8. The connector assembly of claim 7, wherein: the joint insulating part is also provided with an extending hole for the electric conductor to extend into, the electric conductor extends into and abuts against the joint conductive part, and the electric conductor is electrically connected with the joint conductive part.

9. The connector assembly of claim 2, wherein: the conductive part is provided with an external thread at one end connected with the connecting part, the insulator is provided with an internal thread hole along the axial direction, and the conductive part can penetrate through the internal thread hole to stretch into the insulator and is in screwed connection with the insulator.