Isolating switch connecting structure of high-voltage switch cabinet

Abstract

A high-voltage switch cabinet disconnecting switch connecting structure comprises a static contact and a connecting part, the connecting part is used for connecting the static contact with a bus, the connecting part comprises a fixing piece and a connecting piece, the static contact is provided with a first through hole, the fixing piece is arranged in the first through hole, the bus is provided with a second through hole, and the connecting piece penetrates through the second through hole to be matched with the fixing piece. Caulking grooves are formed in the two sides of the second through holes of the buses, the opposite caulking grooves of the two buses can be connected into a whole through a connecting rod, the two ends of the connecting rod are matched with the caulking grooves in shape, the connecting rod is in a long sheet shape, and an open hole for the static contact to penetrate through is formed in the connecting rod; the middle of the connecting rod can be separated and contracted towards the middle under the condition that the two ends are compressed. The bus is provided with the caulking grooves, and the caulking grooves are connected through the connecting rod, so that the stepped holes of the buses on the two sides are aligned, the tedious operation of manual hole alignment is avoided, the installation of the buses and the static contact is simple, convenient and rapid, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of switch cabinet equipment, in particular to a high-voltage switch cabinet isolating switch connection structure. Background Art

[0002] As an important component of medium-voltage gas-insulated metal-enclosed switchgear, the scientificity and reliability of the disconnector's own structure play a vital role in the normal operation of the power grid.

[0003] Chinese patent document CN208256567U records a disconnector and switchgear, wherein the disconnector comprises: a stationary contact and a connecting part, wherein the connecting part is used to connect the stationary contact to the busbar, wherein the connecting part comprises a fixing part and a connecting part, wherein a first through hole is provided on the stationary contact, wherein the fixing part is arranged on the first through hole, wherein a second through hole is provided on the busbar, wherein the connecting part passes through the second through hole and cooperates with the fixing part to connect the busbar to the stationary contact. Since the stationary contact is directly connected to the busbar, there is no need to connect the busbar to the connecting wire and then connect the connecting wire to the stationary contact to realize the connection between the stationary contact and the busbar. Therefore, compared with the prior art, the disconnector provided by the utility model occupies less space when connected to the busbar, and the conductor is relatively reduced, which can make the electric field distribution more uniform and avoid partial discharge, thereby making the disconnector safer when in use.

[0004] When connecting the above-mentioned isolating switch and the static contact, since two busbars are needed to clamp the static contact together, the busbars on both sides need to be symmetrically arranged together. However, since the static contact blocks the busbars on both sides, it is very inconvenient to align the threaded holes of the busbars on both sides, making its installation very laborious. Summary of the invention

[0005] The technical problem to be solved by the utility model is to provide a high-voltage switch cabinet isolating switch connection structure, which can conveniently connect a busbar with a static contact.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0007] A high-voltage switch cabinet isolating switch connection structure comprises a static contact and a connection part, wherein the connection part is used to connect the static contact to a busbar, and the connection part comprises a fixing part and a connecting part, wherein a first through hole is provided on the static contact, the fixing part is arranged on the first through hole, a second through hole is provided on the busbar, the connecting part passes through the second through hole and cooperates with the fixing part to connect the busbar to the static contact, and grooves are provided on both sides of the second through hole of the busbar, and the grooves opposite to each other of the two busbars can be connected into one by a connecting rod, and the shapes of the two ends of the connecting rod match the grooves, the connecting rod is in the shape of a long sheet, and an opening for the static contact to pass through is provided on the connecting rod, and the middle part of the connecting rod can be separated and contracted toward the middle when the two ends are compressed.

[0008] A wedge-shaped connection part is provided in the middle of the connecting rod, and the wedge-shaped connection part is connected together by wedges on both sides through a connection point. The connection point breaks when the two ends of the connecting rod are squeezed inward, so that the wedge-shaped connection parts on both sides are in contact.

[0009] The connecting rod is made of insulating material.

[0010] The above-mentioned fixing member is a threaded sleeve, and the connecting member is a bolt.

[0011] A gasket is provided at the contact position between the bolt cap of the bolt and the busbar.

[0012] The above-mentioned embedding groove is a T-shaped groove.

[0013] The second through hole is a stepped hole, and the bolt passes through the stepped hole and is connected to the threaded sleeve.

[0014] The utility model provides a high-voltage switch cabinet isolating switch connection structure, which arranges embedding grooves on the busbars and connects the embedding grooves through connecting rods, so that the stepped holes of the busbars on both sides are aligned, avoiding the tedious manual operation of the holes, making the installation of the busbars and the static contacts simple and quick, and improving the production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0016] Figure 1 This is a schematic diagram of the structure of the isolating switch busbar and the connecting rod of the utility model;

[0017] Figure 2 for Figure 1 A partial enlarged schematic diagram of

[0018] Figure 3 It is a schematic diagram of the connection between the busbar and the connecting rod;

[0019] Figure 4 It is a schematic diagram of the positioning of the static contact and the busbar;

[0020] Figure 5 This is the connection diagram of the isolating switch;

[0021] Figure 6 Schematic diagram of the connecting rod structure.

[0022] In the figure: busbar 1, stepped hole 2, embedded groove 3, connecting rod 4, wedge-shaped connecting part 41, connecting point 42, opening 43, static contact 5, threaded sleeve 6, bolt 7, gasket 8. DETAILED DESCRIPTION

[0023] The technical solution of the present utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0024] like Figure 1-6 As shown in the figure, a high-voltage switch cabinet disconnector connection structure includes a static contact 5 and a connecting part, the connecting part is used to connect the static contact 5 to the busbar 1, the connecting part includes a fixing piece and a connecting piece, a first through hole is opened on the static contact 5, the fixing piece is arranged in the first through hole, a second through hole is opened on the busbar 1, the connecting piece passes through the second through hole and cooperates with the fixing piece to connect the busbar 1 to the static contact 5, and grooves 3 are provided on both sides of the second through hole of the busbar 1. The grooves 3 opposite to each other of the two busbars 1 can be connected into one by a connecting rod 4, the shapes of the two ends of the connecting rod 4 match the grooves 3, the connecting rod 4 is in the shape of a long sheet, and an opening 43 for the static contact 5 to pass through is provided on the connecting rod 4, and the middle part of the connecting rod 4 can be separated and contracted toward the middle when the two ends are compressed.

[0025] like Figure 2 As shown in the figure, the busbars 1 on both sides can be connected together when the connecting rods 4 are embedded. When the ends of the two connecting rods 4 are flush with the ends of the busbars 1, the openings 43 on the upper and lower connecting rods can be aligned to facilitate the insertion of the static contact 5. At this time, the stepped holes 2 of the two busbars 1 are naturally aligned, and there is no need to manually align the holes, making the installation of the static contact convenient and quick.

[0026] A wedge-shaped connecting portion 41 is provided in the middle of the connecting rod 4. The wedge-shaped connecting portion 41 is connected together by wedges on both sides through a connecting point 42. The connecting point 42 breaks when the two ends of the connecting rod 4 are squeezed inward, so that the wedge-shaped connecting portions 41 on both sides are in contact.

[0027] like Figure 2 and 4 As shown in the figure, when the bolts 7 on both sides are tightened with the threaded sleeves 6, the two ends of the connecting rod 4 are squeezed toward the middle by the force, so that the connection point 42 is broken. When the busbar 1 and the static contact 5 are pressed tightly, the wedge-shaped connecting parts 41 at both ends are in contact.

[0028] The connecting rod 4 is made of insulating material.

[0029] The above-mentioned fixing member is a threaded sleeve 6 , and the connecting member is a bolt 7 .

[0030] A gasket 8 is provided at the contact position between the bolt 7 cap of the bolt 7 and the busbar 1 , and the gasket 8 is a rubber gasket or a plastic gasket.

[0031] The above-mentioned embedding groove 3 is a T-shaped groove.

[0032] The second through hole is a stepped hole 2 , and the bolt 7 passes through the stepped hole 2 and is connected to the threaded sleeve 6 .

[0033] The busbar 1 is a rectangular long busbar, and the flatness of the end portion thereof facilitates the alignment of the connecting rod therewith.

Claims

1. A high-voltage switch cabinet disconnector connection structure, comprising a stationary contact (5) and a connection part, the connection part being used to connect the stationary contact (5) to a busbar (1), the connection part comprising a fixing piece and a connection piece, the stationary contact (5) being provided with a first through hole, the fixing piece being arranged in the first through hole, the busbar (1) being provided with a second through hole, the connection piece passing through the second through hole and cooperating with the fixing piece to connect the busbar (1) to the stationary contact (5), wherein: The second through hole of the busbar (1) is provided with embedded grooves (3) on both sides. The embedded grooves (3) of the two busbars (1) facing each other can be connected into one piece by a connecting rod (4). The shapes of the two ends of the connecting rod (4) match the embedded grooves (3). The connecting rod (4) is in the shape of a long sheet. The connecting rod (4) is provided with an opening (43) for the static contact (5) to pass through. The middle part of the connecting rod (4) can be separated and contracted toward the middle when the two ends are compressed.

2. A high-voltage switch cabinet disconnector connection structure according to claim 1, characterized in that: The connecting rod (4) is provided with a wedge-shaped connecting portion (41) in the middle, and the wedge-shaped connecting portion (41) is connected together by wedges on both sides through a connecting point (42). The connecting point (42) breaks when the two ends of the connecting rod (4) are pressed inward, thereby making the wedge-shaped connecting portions (41) on both sides contact.

3. A high-voltage switch cabinet disconnector connection structure according to claim 2, characterized in that: The connecting rod (4) is made of insulating material.

4. A high-voltage switch cabinet disconnector connection structure according to claim 3, characterized in that: The fixing member is a threaded sleeve (6) and the connecting member is a bolt (7).

5. A high-voltage switch cabinet disconnector connection structure according to claim 4, characterized in that: A gasket (8) is provided at the contact position between the bolt (7) cap of the bolt (7) and the busbar (1).

6. A high-voltage switch cabinet disconnector connection structure according to claim 5, characterized in that: The embedding groove (3) is a T-shaped groove.

7. A high-voltage switch cabinet disconnector connection structure according to claim 6, characterized in that: The second through hole is a stepped hole (2), and the bolt (7) passes through the stepped hole (2) and is connected to the threaded sleeve (6).

Images