CN204577631U - Bus tie and and cabinet - Google Patents

Abstract

The utility model provides a busbar connector and a cabinet combining structure. The busbar connector includes an intermediate conductor, and the left and right ends of the intermediate conductor respectively have sockets for inserting into the housing of the corresponding air chamber and are conductively connected with the conductive ends in the air chamber. The connecting end of the intermediate conductor is provided with an insulating connecting sleeve on the outer circumference of the intermediate conductor. The insulating connecting sleeve includes two plug-in terminals on the left and right for inserting into the socket on the corresponding gas chamber housing. The outer peripheral surface of the insulating connecting sleeve is on the two sides. Between the two plug-in ends, there is a connecting piece used to be between the adjacent air chamber shells and connected to the shells of the left and right air chambers. The insulating connecting sleeve is also provided with a seal for sealing the insulating connecting sleeve and the air chamber shell. The sealing structure of the gap between the corresponding sockets of the body. The busbar connector of the utility model has the advantages of simple structure, convenient use and high service life.

Description

Busbar connector and cabinet structure

technical field

The utility model relates to a busbar connecting device used for a gas insulated switch, in particular to a busbar connector and a cabinet combining structure.

Background technique

Gas insulated switchgear is the most widely used switchgear in medium-voltage power transmission and distribution systems, and it has been widely used in urban network transformation. Therefore, the quality of gas insulated switchgear is directly related to the safety of power transmission and transformation systems. and reliability. In gas insulated switchgear, reliable connection between gas chambers is required, and the insulation and sealing of gas chambers is a key technology that affects product performance. The Chinese utility model patent with the authorized notification number CN102447226 discloses a GIS busbar connector, which includes connecting conductors extending left and right and shielding rubber sleeves covering the connecting conductors. , There are two tapered sleeves at the left and right ends of the outer circumference of the shielding rubber sleeve. The connector is connected to the shells of the left and right sealed air chambers through the two tapered sleeves. The tapered surface fits without clearance to achieve the insulation effect. However, this kind of busbar connector has a complex structure, many parts, and is inconvenient to install. The tapered sleeve and the shielding rubber sleeve require no clearance through the tapered surface, and the installation accuracy and difficulty are high, which improves the use. cost.

Utility model content

The purpose of the utility model is to provide a busbar connector with simple structure and convenient installation; at the same time, the utility model also provides a cabinet combining structure using the busbar connector.

In order to solve the above-mentioned technical problems, the busbar connector of the present invention adopts the following technical scheme: the busbar connector includes an intermediate conductor, and the left and right ends of the intermediate conductor respectively have jacks for inserting into the corresponding air chamber housing and are connected with The connection end of the conductive end in the air chamber is electrically connected, and the outer circumference of the intermediate conductor is provided with an insulating connection sleeve. Connecting end, the outer peripheral surface of the insulating connecting sleeve is protruded between the two plug-in ends with a connecting piece used to be between the housings of adjacent air chambers and connected to the housings of the left and right air chambers, and the insulating connection The sleeve is also provided with a sealing structure for sealing the gap between the insulating connection sleeve and the corresponding socket of the gas chamber housing.

The connecting piece is a connecting flange protruding from the outer circumference of the insulating connecting sleeve, and the left and right side end faces of the connecting flange are provided with inserts for connecting with the corresponding air chamber shell, and the sealing structure is provided on the connecting flange. Annular sealing grooves on the left and right end faces of the flange.

A ring-shaped shield wrapping around the intermediate conductor is provided inside the insulating connecting sleeve at a position corresponding to the axial position of the connecting flange, and the annular shielding cover is cast integrally with the insulating connecting sleeve.

Both the left and right plug ends of the insulating connection sleeve have tapered outer peripheral surfaces whose axes extend in the left and right directions, and the ends with smaller diameters of the two plug ends are far away from each other.

The cabinet structure of the utility model adopts the following technical scheme:

The combined cabinet structure includes a busbar connector and two cabinets connected to the busbar connector. The busbar connector includes an intermediate conductor, and the left and right ends of the intermediate conductor respectively have a The socket is connected to the conductive end in the gas chamber. The outer circumference of the intermediate conductor is covered with an insulating connection sleeve, and the insulation connection sleeve includes a socket for inserting into the corresponding gas chamber housing. Two plug-in ends on the left and right, the outer peripheral surface of the insulating connection sleeve protrudes between the two plug-in ends for connection between the housings of the adjacent air chambers and the housings of the two left and right air chambers The insulating connecting sleeve is also provided with a sealing structure for sealing the gap between the insulating connecting sleeve and the corresponding socket of the gas chamber housing.

The connecting piece is a connecting flange protruding from the outer circumference of the insulating connecting sleeve, and the left and right side end faces of the connecting flange are provided with inserts for connecting with the corresponding air chamber shell, and the sealing structure is provided on the connecting flange. Annular sealing grooves on the left and right end faces of the flange.

A ring-shaped shield wrapping around the intermediate conductor is provided inside the insulating connecting sleeve at a position corresponding to the axial position of the connecting flange, and the annular shielding cover is cast integrally with the insulating connecting sleeve.

Both the left and right plug ends of the insulating connection sleeve have tapered outer peripheral surfaces whose axes extend in the left and right directions, and the ends with smaller diameters of the two plug ends are far away from each other.

The outer peripheral sleeve of the intermediate conductor of a busbar connector of the utility model is provided with an insulating connecting sleeve. Between the two plug-in ends on the outer peripheral surface, there is a connecting piece used to be between the housings of the adjacent air chambers and connected to the housings of the two left and right air chambers. The sealing structure of the gap between the sleeve and the corresponding socket of the air chamber housing. This kind of connector is connected with the corresponding two air chamber shells through the connecting piece protruding between the two plug-in ends. It is convenient to connect, flexible to use, saves a sleeve, and the production cost and use cost are relatively low. , the structure is relatively simple, and there is no need to increase the labor of maintenance due to the failure of many parts during use.

Furthermore, the connecting piece is a connecting flange, and the sealing structure is provided with sealing ring grooves on the left and right end faces of the connecting flange, so that the connecting flange can play both the role of connection and the function of sealing, which is convenient to use.

Furthermore, a ring-shaped shield is poured into the insulating connection sleeve at a position corresponding to the connecting flange, and the ring-shaped shield acts on the connection position of the two gas chambers, shielding the negative effects caused by the concentration of the electric field and improving the electrical performance.

Description of drawings

Fig. 1 is a schematic structural view of an embodiment of a busbar connector of the present invention;

Fig. 2 is a structural schematic diagram of an embodiment of a combined cabinet structure of the present invention.

Detailed ways

An embodiment of a busbar connector of the present invention: as shown in Figure 1, it includes an intermediate conductor 1 extending left and right, and the two ends of the intermediate conductor 1 are respectively provided with plugs for extending into the corresponding left and right air chamber housings. The conductive connection end in the hole and conductively connected with the conductive ends in the two air chambers, the conductive connection end on the left is provided with connecting holes 11, 12 extending axially, and through the connection holes 11, 12 and the left air chamber To realize electrical connection, the conductive connection end located on the right side is provided with two connection planes horizontally opposite up and down on the intermediate conductor 1, and the connection plane is provided with threaded holes 13 extending up and down, and the right side air chamber is used to connect with the right side The connection structure of the conductive connection end is a U-shaped structure, and the two groove walls of the U-shaped structure are respectively matched with the upper and lower connection planes and connected by screws inserted in the threaded holes 13. The outer peripheral surface of the intermediate conductor 1 is sleeved with Insulated connection sleeve 2, the insulation connection sleeve 2 extends left and right and has plug-in ends for respectively inserting into corresponding sockets on the air chamber housing, the outer peripheral surface of the insulation connection sleeve 2 protrudes between the left and right two plug-in ends A connecting flange 22 is provided. The connecting flange 22 has two connecting end faces, left and right. Threaded inserts are respectively embedded on the left and right connecting end faces. The threaded inserts have threaded connecting holes 221, and the connecting flanges are respectively Through the threaded connection holes 221 on the left and right connecting end faces and the connecting screws 222 adapted thereto, the two left and right air chambers are connected, and the left and right connecting end faces of the connecting flange 22 are also provided with annular sealing grooves 220, A sealing ring is installed in the annular sealing groove 220, and the sealing ring is used to seal the gap between the two plug-in ends of the insulating connection sleeve when they are plugged into the sockets on the corresponding air chamber housing, so as to ensure that the left and right connecting end faces and the airtightness between the outer wall surface of the corresponding air chamber shell, of course, in other embodiments, the left and right connecting end faces can be sealed by being closely fitted with the corresponding air chamber shell, or the edges of the left and right connecting end faces can be coated Apply sealant to seal. The inside of the insulating connection sleeve 2 is provided with an annular shielding cover 21 at the axial position corresponding to the connecting flange 22. The annular shielding cover 21 is integrally casted with the insulating connecting sleeve. Extending, the left and right ends of the annular shielding cover exceed the left and right connecting end surfaces of the connecting flange. When in use, the annular shielding cover 21 can shield the concentrated electric field at the connection position of the two gas chambers, which makes the electrical performance better. Optimization, the left and right plug ends of the insulating connection sleeve 2 have a tapered outer peripheral surface whose axis coincides with the axis of the intermediate conductor, the two plug ends are symmetrical about the connecting flange 22 and the end with a smaller diameter is away from each other, the The arrangement is more convenient and flexible in use. Of course, in other embodiments, the insulating connection sleeves connecting the left and right sides of the flange can be cylindrical outer peripheral surfaces with a diameter smaller than or equal to that of the socket.

In this embodiment, an annular shielding cover is provided inside the insulating connecting sleeve. In other embodiments, the shielding cover may not be provided inside the insulating connecting sleeve, but the shielding cover may be provided at other positions outside the insulating connecting sleeve.

In this embodiment, threaded inserts are respectively embedded on the left and right connecting end surfaces of the connecting flange, and threaded connection holes are provided on the threaded inserts, and are connected to the corresponding air chamber housing through connecting screws adapted to the threaded connection holes. In other embodiments, the threaded connection holes may be replaced by riveting holes and connected by rivets, or threaded inserts may be omitted and threaded holes are directly provided on the left and right connecting end faces for threaded connection.

In this embodiment, the connecting piece is a connecting flange, and the sealing structure is a sealing groove provided on the left and right connecting end faces of the connecting flange. The convex edge, a sealing ring or a gasket is provided on the annular convex edge to achieve sealing. The connecting piece can be a radially extending connecting ear evenly distributed on the circumferential surface of the annular convex edge in the circumferential direction. The connecting ear can be provided with the corresponding The connection structure of the gas chamber shell connection.

An embodiment of a combination cabinet structure of the present utility model: as shown in Figure 2, it includes a busbar connector 4 and two gas cabinet cabinets 3 correspondingly connected to the connectors of the busbar connector 4, wherein the busbar connector The specific structure is the same as that of the above-mentioned embodiment of the busbar connector, and will not be repeated here.

Claims (8)

1. bus tie, comprise middle conductor, the two ends, left and right of described middle conductor have for inserting jack on corresponding gas chamber shell and conducting electricity with the conducting end in air chamber the link be connected respectively, it is characterized in that, the periphery of described middle conductor is arranged with insulation adapter sleeve, described insulation adapter sleeve comprises two, the left and right inserted terminal in the jack for inserting on corresponding gas chamber shell, the outer peripheral face of described insulation adapter sleeve is convexly equipped with between two inserted terminals for being in the connector be connected between adjacent air cells housing and with the housing of two air chambers in left and right, insulation adapter sleeve is also provided with the hermetically-sealed construction for the gap between sealed insulation adapter sleeve and the corresponding jack of gas chamber shell.

2. bus tie according to claim 1, it is characterized in that, described connector is the adpting flange being convexly equipped in insulation adapter sleeve periphery, the left and right sides end face of described adpting flange is provided with the inserts for being connected with corresponding gas chamber shell, and described hermetically-sealed construction is be located at the annular seal groove on two, the left and right end face of adpting flange.

3. bus tie according to claim 1, it is characterized in that, described insulation adapter sleeve inherence and adpting flange axial location corresponding section are provided with around the ring shielding cover around described middle conductor, and described ring shielding cover integrally pours into a mould setting with insulation adapter sleeve.

4. bus tie according to claim 1, is characterized in that, two, the left and right inserted terminal of described insulation adapter sleeve all has the tapered outer circumferential surfaces that axis extends at left and right directions, the less one end of described two inserted terminal diameters mutually away from.

5. and cabinet, comprise bus tie and be connected to two cabinets on bus tie, described bus tie comprises middle conductor, the two ends, left and right of described middle conductor have for inserting jack on corresponding gas chamber shell and conducting electricity with the conducting end in air chamber the link be connected respectively, it is characterized in that, the periphery of described middle conductor is arranged with insulation adapter sleeve, described insulation adapter sleeve comprises two, the left and right inserted terminal in the jack for inserting on corresponding gas chamber shell, the outer peripheral face of described insulation adapter sleeve is convexly equipped with between two inserted terminals for being in the connector be connected between adjacent air cells housing and with the housing of two air chambers in left and right, insulation adapter sleeve is also provided with the hermetically-sealed construction for the gap between sealed insulation adapter sleeve and the corresponding jack of gas chamber shell.

6. according to claim 5 and cabinet, it is characterized in that, described connector is the adpting flange being convexly equipped in insulation adapter sleeve periphery, the left and right sides end face of described adpting flange is provided with the inserts for being connected with corresponding gas chamber shell, and described hermetically-sealed construction is be located at the annular seal groove on two, the left and right end face of adpting flange.

7. according to claim 5 and cabinet, it is characterized in that, described insulation adapter sleeve inherence and adpting flange axial location corresponding section are provided with around the ring shielding cover around described middle conductor, and described ring shielding cover integrally pours into a mould setting with insulation adapter sleeve.

8. according to claim 5 and cabinet, is characterized in that, two, the left and right inserted terminal of described insulation adapter sleeve all has the tapered outer circumferential surfaces that axis extends at left and right directions, the less one end of described two inserted terminal diameters mutually away from.