All-insulated bus connection structure of switch cabinet

Abstract

The utility model relates to the field of bus connecting structure design, and discloses an all-insulation bus connecting structure of a switch cabinet, which comprises a connecting pipe, a first bus main body and an auxiliary connector, the connecting end of the connecting pipe is provided with an insulation protective sleeve, the connecting pipe is provided with a main connector close to the insulation protective sleeve, and the main connector is connected with the first bus main body. A first bus fixing frame is arranged on the end face of the end, close to the insulating protective sleeve, of the connecting pipe, a first bus body is arranged on the first bus fixing frame, the connecting pipe is movably connected with the auxiliary connector, a second protective wire fixing sleeve is arranged at the other end of the auxiliary connector, and a second protective wire fixing sleeve is arranged at the other end of the second protective wire fixing sleeve. The second protection wire fixing sleeve is internally provided with a second bus main body, the connection with the auxiliary connector is fixed through the connecting pipe, the connection between the first bus main body and the second bus main body is established, and the stable transmission of electric signals of the switch cabinet is ensured. According to the utility model, connection control of the two groups of bus main bodies is realized, and the stability of bus connection is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of busbar connection structure design technology, and more specifically, to a fully insulated busbar connection structure for switchgear. Background Technology

[0002] Switchgear is a common electrical product used in power systems for switching, control, and protection in power generation, transmission, distribution, energy conversion, and consumption. Insulated busbars are used during switchgear installation and communication with external equipment, requiring busbar connection structures. However, in practice, when connecting two sets of busbars using connection components, the insulated busbar connection structure is prone to loosening and disconnection due to external pulling after plugging in the connectors. This makes it difficult to secure the busbar connection with locking mechanisms. Using existing locking components for busbar connection is complex, leading to difficulties in maintenance and replacement, thus reducing installation and maintenance efficiency. Therefore, a fully insulated busbar connection structure for switchgear is proposed. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] To address at least one of the aforementioned problems, this utility model first provides a fully insulated busbar connection structure for switchgear, which improves the robustness of the busbar connection, simplifies the disassembly and assembly of the switchgear, and enhances the practicality of the connection structure.

[0005] (II) Technical Solution

[0006] To solve the aforementioned technical problem, this utility model provides a fully insulated busbar connection structure for a switchgear, including a connecting pipe, a first busbar body, and a secondary connector. The connecting end of the connecting pipe is provided with an insulating protective sleeve. A main connector is located near the insulating protective sleeve on the connecting pipe. A first busbar fixing frame is provided on the end face of the connecting pipe near the insulating protective sleeve. The first busbar body is mounted on the first busbar fixing frame. The connecting pipe is movably connected to the secondary connector. A second protective fixing sleeve is provided at the other end of the secondary connector. A second busbar body is housed inside the second protective fixing sleeve. The connection to the secondary connector is fixed by the connecting pipe, establishing a connection between the first busbar body and the second busbar body, ensuring stable transmission of electrical signals in the switchgear.

[0007] Furthermore, the connecting end of the secondary connector is provided with an insertion frame, and the other end of the insertion frame is provided with a second locking frame, on which a plurality of second locking pins are evenly provided.

[0008] Furthermore, the inner wall of the extending frame is provided with a rubber buffer layer, and an insulating corrugated pipe is provided on the inner side of the rubber buffer layer.

[0009] Furthermore, the main connector is provided with a toggle groove, the main connector is provided with a toggle piece, the insulating protective sleeve is provided with a notch corresponding to the toggle groove, the toggle piece is provided with a first locking frame inside the insulating protective sleeve tube wall through the notch, and the first locking frame is provided with first locking pins evenly distributed on the first locking frame.

[0010] Furthermore, the insulating protective sleeve is uniformly provided with a plurality of heat dissipation fins, and protective buffer frames are provided between the heat dissipation fins respectively. A first protective wire fixing sleeve is provided in the center of the inner cavity of the insulating protective sleeve, and a first protective wire fixing sleeve mounting bracket is provided at the connecting end of the first protective wire fixing sleeve.

[0011] Furthermore, the first busbar body is connected to the first alignment frame through the first busbar fixing frame, and the first alignment frame is provided with a plug interface.

[0012] Furthermore, the inner wall of the aligned end of the connecting pipe is provided with a moisture-proof sleeve, the outer end of the moisture-proof sleeve is provided with a copper component arrangement ring, and the copper component arrangement ring and the inner wall plate of the connecting pipe are provided with an elastic rubber ring.

[0013] Furthermore, the secondary connector end face is provided with abutment interface corresponding to the connecting pipe and the copper component arrangement ring, and the secondary connector is provided with a sealing plug in the inner ring of the abutment interface.

[0014] Furthermore, a second busbar fixing bracket is provided on the connecting end face of the secondary connector, and a second alignment bracket is provided at the other end of the second busbar fixing bracket.

[0015] Furthermore, a first waterproof sleeve is provided at the connection between the first busbar body and the insulating protective sleeve, and a second waterproof sleeve is provided at the connection between the second busbar body and the second protective fixing sleeve.

[0016] (III) Beneficial Effects

[0017] This utility model provides a fully insulated busbar connection structure for a switchgear. A main connector with a connection and protection structure is provided on the first busbar body, and a secondary connector with a matching main connector is provided on the second busbar body. This enables connection control of the two busbar bodies, effectively improving the stability of the busbar connection. Furthermore, an electric field optimization device, a moisture-proof device, an elastic device, and a heat dissipation device are included to effectively protect the connection structure, improve its safety, and extend its service life. A lever controls the first locking frame and the first locking pin to assemble and disassemble the second locking frame and the second locking pin, allowing for rapid assembly and disassembly control and improving efficiency. Attached Figure Description

[0018] Figure 1This is a schematic diagram of the busbar connection structure according to an embodiment of the present utility model;

[0019] Figure 2 This is a schematic diagram of the internal components of the busbar connection structure according to an embodiment of the present utility model;

[0020] Figure 3 This is a schematic diagram of the internal structure of the busbar connection structure in the assembled state according to an embodiment of the present utility model;

[0021] Figure 4 This is a schematic diagram of the main connector of the busbar connection structure according to an embodiment of the present utility model;

[0022] Figure 5 This is a schematic diagram of the secondary connector of the busbar connection structure according to an embodiment of the present utility model;

[0023] Figure 6 This is a schematic diagram of region A of the busbar connection structure according to an embodiment of the present invention.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1 is an insulating protective sleeve; 2 is a main connector; 3 is a connecting pipe; 4 is a moisture-proof sleeve; 5 is a copper component arrangement ring; 6 is a secondary connector; 7 is an insertion frame; 8 is a second locking frame; 9 is a second locking pin; 10 is a second protective wire fixing sleeve; 11 is the first busbar body; 12 is the second busbar body; 13 is the first waterproof sleeve; 14 is the first protective wire fixing sleeve; 15 is a heat dissipation fin; 16 is the first busbar fixing frame; 17 is the first alignment frame; 18 is the first protective wire fixing sleeve mounting frame; 19 is a lever; 20 is the first locking frame; 21 is the first locking pin; 22 is an elastic rubber ring; 23 is an insulating corrugated pipe; 24 is a rubber buffer layer; 25 is a mating interface; 26 is a sealing plug; 27 is the second waterproof sleeve; 28 is the second busbar fixing frame; 29 is the second alignment frame. Detailed Implementation

[0026] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0027] See Figures 1 to 6This utility model embodiment provides a fully insulated busbar connection structure for a switchgear, including a connecting pipe 3, a first busbar body 11, and a secondary connector 6. The connecting end of the connecting pipe 3 is provided with an insulating protective sleeve 1. A main connector 2 is provided near the insulating protective sleeve 1 on the connecting pipe 3. A first busbar fixing frame 16 is provided on the end face of the connecting pipe 3 near the insulating protective sleeve 1. The first busbar body 11 is mounted on the first busbar fixing frame 16. The connecting pipe 3 is movably connected to the secondary connector 6. A second protective fixing sleeve 10 is provided at the other end of the secondary connector 6. A second busbar body 12 is housed inside the second protective fixing sleeve 10. The connection is made possible by the connecting pipe... 3. Secure the connection with the auxiliary connector 6 to establish the connection between the first busbar body 11 and the second busbar body 12. The connecting pipe 3 is fixed to the connection with the first busbar body 11 through the first busbar fixing bracket 1. The outer end of the auxiliary connector 6 is fixed to the connection with the second busbar body 12 through the second protective cable fixing sleeve 10. Insert the insertion bracket 7 at the front end of the auxiliary connector 6 into the connecting pipe 3. Move the lever 19 to embed the insertion bracket 7 into the connecting pipe 3, thus establishing the connection with the auxiliary connector 6. This enables the contact connection and electrical signal transmission between the first busbar body 11 and the second busbar body 12, ensuring the stable transmission of electrical signals in the switchgear.

[0028] See Figure 1 and Figure 2 The connecting end of the secondary connector 6 is provided with an insertion bracket 7, and the other end of the insertion bracket 7 is provided with a second locking bracket 8. The second locking bracket 8 is evenly provided with several second locking pins 9. The secondary connector 6 inserts the insertion bracket 7 into the moisture-proof sleeve 4. At this time, the second locking pins 9 are respectively aligned with the gaps between the first locking pins 21. The second locking bracket 8 is inserted into the first locking bracket 20. The lever 19 is moved to the other end, and the first locking pin 21 is attached to the second locking pin 9 to establish a fixed connection with the secondary connector 6. If it is necessary to disassemble the connecting components, the lever 19 is moved in the opposite direction to drive the first locking bracket 20 to rotate the first locking pin 21 back to its original position, disconnecting the connection between the second locking pin 9 and the first locking pin 21. The secondary connector 6 can then be removed from the moisture-proof sleeve 4.

[0029] See Figure 2 and Figure 4 The inner wall of the extension frame 7 is provided with a rubber buffer layer 24, and an insulating corrugated tube 23 is provided on the inner side of the rubber buffer layer 24. When the connecting pipe 3 and the auxiliary connecting head 6 are in a fixed connection state, the two sets of busbar structures will generate a certain amount of heat during continuous operation. The heat accumulation will have a certain negative impact on the connection position. The insulating corrugated tube 23 is provided at the outer end of the second alignment frame 29 to absorb the thermal displacement generated by the conductor. The expansion and contraction of the insulating corrugated tube 23 can adjust the change in air heating, so as to avoid the busbar structure being affected by heat and its safe use. The rubber buffer layer 24 can improve the protective performance of the extension frame 7, prevent it from being damaged or broken due to squeezing or collision, and ensure the structural performance of the extension frame 7.

[0030] SeeFigure 1 and Figure 2 The main connector 2 is provided with an actuating groove, and a lever 19 is provided inside the main connector 2. The insulating protective sleeve 1 is provided with a notch corresponding to the actuating groove. The lever 19 is provided with a first locking frame 20 inside the wall of the insulating protective sleeve 1 through the notch. The first locking frame 20 is provided with first locking pins 21 evenly distributed. The actuating groove and the notch limit the movement range of the lever 19. The second locking frame 8 can be inserted into the first locking frame 20 through the moisture-proof sleeve 4. If it is blocked by the first locking pin 21, the lever 19 can be moved to the other side of the actuating groove, and the second locking pin 9 can be placed in the gap of the first locking pin 21 and inserted. The second locking frame 8 can be inserted into the installation position, and the lever 19 can be moved in the opposite direction to the other end, which will drive the first locking frame 20 to move by the same angle. This can establish the contact between the first locking pin 21 and the second locking pin 9, ensuring the firmness of the connection between the connecting pipe 3 and the auxiliary connector 6.

[0031] The insulating protective sleeve 1 is uniformly provided with a number of heat dissipation fins 15, and protective buffer frames are provided between the heat dissipation fins 15. The inner cavity of the insulating protective sleeve 1 is provided with a first protective fixing sleeve 14. The connecting end of the first protective fixing sleeve 14 is provided with a first protective fixing sleeve mounting bracket 18. The inner cavity of the insulating protective sleeve 1 is limited by the first protective fixing sleeve 14 to install the first busbar body 11. The connecting end of the first protective fixing sleeve 14 is connected to the connecting pipe 3 by the first protective fixing sleeve mounting bracket 18. While cooperating with the first busbar fixing bracket 16 to establish the installation stability of the first busbar body 11, the connection between the insulating protective sleeve 1 and the connecting pipe 3 is increased. The multiple sets of heat dissipation fins 15 can dissipate the heat generated during the operation of the busbar. The protective buffer frames can effectively ensure the installation firmness of the heat dissipation fins 15 and provide buffer protection for the internal components of the insulating protective sleeve 1 during the use of the busbar, so as to avoid damage, breakage or detachment caused by impact.

[0032] The first busbar body 11 is connected to the first alignment frame 17 through the first busbar fixing frame 16. The first alignment frame 17 is provided with a plug interface. The first busbar body 11 is connected to the second busbar body 12 on the second alignment frame 29 through the first alignment frame 17 to realize stable transmission of electrical signals.

[0033] A moisture-proof sleeve 4 is provided on the inner wall of the aligned end of the connecting pipe 3. A copper component arrangement ring 5 is provided on the outer end of the moisture-proof sleeve 4. An elastic rubber ring 22 is provided on the inner wall of the connecting pipe 3 and the copper component arrangement ring 5. A movable limiting groove is provided on the inner wall of the moisture-proof sleeve 4 corresponding to each group of second locking pins 9. The connecting pipe 3 accommodates the insertion of the extension frame 7 through the movable limiting groove and absorbs the moisture at the busbar contact end. The copper component arrangement ring 5 can enhance the structural strength of the connecting pipe 3 and improve the firmness of the connection to the extension frame 7. It also forms an equal voltage shielding layer through the metal copper arrangement, optimizes the electric field distribution at the busbar contact end, and reduces the risk of edge discharge at the busbar contact end. The elastic rubber ring 22 can improve the structural performance of the connecting pipe 3, prevent it from deforming under stress, and ensure its connection properties.

[0034] See Figure 5 and Figure 6 The secondary connector 6 has a stop interface 25 at the end face corresponding to the connecting pipe 3 and the copper component arrangement ring 5. The secondary connector 6 has a sealing plug 26 inside the stop interface 25. The contact end face of the secondary connector 6 limits the installation of the connecting pipe 3 and the copper component arrangement ring 5 through the stop interface 25. That is, when the secondary connector 6 and the connecting pipe 3 are in the assembled state, the edges of the connecting pipe 3 and the copper component arrangement ring 5 are embedded in the stop interface 25. At this time, the sealing plug 26 enhances the sealing performance of the end face of the secondary connector 6 to the moisture-proof ring 4.

[0035] The secondary connector 6 is provided with a second busbar fixing frame 28 on the connecting end face, and a second alignment frame 29 is provided at the other end of the second busbar fixing frame 28. The secondary connector 6 fixes the installation of the second busbar body 12 through the second busbar fixing frame 28, and establishes a connection with the first alignment frame 17 through the second alignment frame 29, thereby realizing the connection of the two sets of busbar structures.

[0036] A first waterproof sleeve 13 is provided at the connection between the first busbar body 11 and the insulating protective sleeve 1, and a second waterproof sleeve 27 is provided at the connection between the second busbar body 12 and the second protective fixing sleeve 10. The first waterproof sleeve 13 can prevent water vapor from entering the connection structure from the connection gap between the first busbar body 11 and the insulating protective sleeve 1, and the second waterproof sleeve 27 can prevent water vapor from entering the connection structure from the connection gap between the second busbar body 12 and the second protective fixing sleeve 10.

[0037] The fully insulated busbar connection structure of the switchgear provided in this embodiment of the utility model involves extending the extension frame 7 into the connection pipe 3, adjusting the second locking pin 9 to align with the moving limit groove and extending it in, and moving the lever 19 to the other end to engage the first locking pin 21 with the second locking pin 9, thereby establishing a fixed connection to the auxiliary connector 6. This device is equipped with relatively coherent and well-matched connection components, which effectively improves the stability of the busbar connection. It also includes an electric field optimization device, a moisture-proof device, an elastic device, and a heat dissipation device, which effectively protect the connection structure, improve the safety of the connection structure, and extend the service life of the connection structure.

[0038] Although the disclosure is as stated above, the scope of protection of this disclosure is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of this disclosure, and all such changes and modifications will fall within the protection scope of this utility model.

Claims

1. A fully insulated busbar connection structure for a switchgear, characterized in that, The system includes a connecting pipe (3), a first busbar body (11), and a secondary connector (6). The connecting end of the connecting pipe (3) is provided with an insulating protective sleeve (1). The connecting pipe (3) is provided with a main connector (2) near the insulating protective sleeve (1). The connecting pipe (3) is provided with a first busbar fixing frame (16) on one end face near the insulating protective sleeve (1). The first busbar body (11) is provided on the first busbar fixing frame (16). The connecting pipe (3) is movably connected to the secondary connector (6). The other end of the secondary connector (6) is provided with a second protective fixing sleeve (10). The second protective fixing sleeve (10) is provided with a second busbar body (12). The connection between the connecting pipe (3) and the secondary connector (6) is fixed by the connecting pipe (3), establishing the connection between the first busbar body (11) and the second busbar body (12), and ensuring the stable transmission of electrical signals of the switchgear.

2. The fully insulated busbar connection structure of a switchgear according to claim 1, characterized in that, The connecting end of the sub-connector (6) is provided with an insertion frame (7), and the other end of the insertion frame (7) is provided with a second locking frame (8), and a plurality of second locking pins (9) are evenly provided on the second locking frame (8).

3. The fully insulated busbar connection structure of a switchgear according to claim 2, characterized in that, The inner wall of the extension frame (7) is provided with a rubber buffer layer (24), and the inner side of the rubber buffer layer (24) is provided with an insulating corrugated tube (23).

4. The fully insulated busbar connection structure of a switchgear according to claim 1, characterized in that, The main connector (2) is provided with a toggle groove, and the main connector (2) is provided with a toggle piece (19). The insulating protective sleeve (1) is provided with a notch corresponding to the toggle groove. The toggle piece (19) is provided with a first locking frame (20) inside the insulating protective sleeve (1) through the notch. The first locking frame (20) is provided with first locking pins (21) evenly distributed.

5. The fully insulated busbar connection structure of a switchgear according to claim 1, characterized in that, The insulating protective sleeve (1) is uniformly provided with a plurality of heat dissipation fins (15), and protective buffer frames are provided between the heat dissipation fins (15). A first protective wire fixing sleeve (14) is provided in the center of the inner cavity of the insulating protective sleeve (1), and a first protective wire fixing sleeve mounting bracket (18) is provided at the connecting end of the first protective wire fixing sleeve (14).

6. The fully insulated busbar connection structure of a switchgear according to claim 1, characterized in that, The first busbar body (11) is connected to the first alignment frame (17) through the first busbar fixing frame (16), and the first alignment frame (17) is provided with a plug interface.

7. The fully insulated busbar connection structure of a switchgear according to claim 1, characterized in that, The inner wall of the aligned end of the connecting pipe (3) is provided with a moisture-proof sleeve (4), and the outer end of the moisture-proof sleeve (4) is provided with a copper component arrangement ring (5). The copper component arrangement ring (5) and the inner wall of the connecting pipe (3) are provided with an elastic rubber ring (22).

8. The fully insulated busbar connection structure of a switchgear according to claim 7, characterized in that, The secondary connector (6) has an abutment (25) at the end face corresponding to the connecting pipe (3) and the copper component arrangement ring (5), and the secondary connector (6) has a sealing plug (26) inside the abutment (25).

9. The fully insulated busbar connection structure of a switchgear according to claim 1, characterized in that, The secondary connector (6) is provided with a second busbar fixing frame (28) on the connecting end face, and a second alignment frame (29) is provided at the other end of the second busbar fixing frame (28).

10. The fully insulated busbar connection structure of a switchgear according to claim 1, characterized in that, A first waterproof sleeve (13) is provided at the connection between the first busbar body (11) and the insulating protective sleeve (1), and a second waterproof sleeve (27) is provided at the connection between the second busbar body (12) and the second protective fixing sleeve (10).

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