High-voltage power transmission pipeline connection structure

Abstract

This utility model discloses a high-voltage power pipe connection structure for power transmission, including a metal cable tray. A busbar high-voltage power pipe is housed inside the metal cable tray, and a main busbar is housed inside the busbar high-voltage power pipe. Fixing holes are equidistantly spaced at the top of the metal cable tray, and a fixing base is positioned above the fixing holes at the top of the metal cable tray. The fixing base is fixedly connected to the metal cable tray by self-tapping screws. This utility model relates to the field of power transmission technology and solves the problem in the prior art where there is a lack of effective connection and fixation between the high-voltage power pipe and the metal cable tray outside the main busbar. During long-term use, external factors such as wind and rain can easily cause the high-voltage power pipe to loosen or wear, and rainwater may also enter the metal cable tray of the main busbar, affecting the stability of power transmission and the service life of the wiring.

Description

Technical Field

[0001] This utility model relates to the field of power transmission technology, specifically to a connection structure for high-voltage power transmission pipes. Background Technology

[0002] In solar photovoltaic (PV) power transmission systems, the grid-connected inverter needs to be connected to the main busbar of the combiner box. High-voltage power pipes are responsible for efficiently and safely transmitting the electricity generated by the solar PV panels to the power grid, ensuring the stability and reliability of the entire power transmission system. They are typically made of high-strength, corrosion-resistant materials, making a significant contribution to the sustainable development of solar PV power generation. However, in existing technologies, there is a lack of effective connection and fixation between the high-voltage power pipes and the metal cable trays outside the main busbar. During prolonged use, external factors such as wind and rain can easily cause the high-voltage power pipes to loosen or wear, and rainwater may even enter the metal cable trays of the main busbar, affecting the stability of power transmission and the service life of the wiring. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a high-voltage power pipe connection structure for power transmission. This solves the problem that in existing technologies, there is a lack of effective connection and fixation between the high-voltage power pipe and the metal cable tray outside the main busbar. During long-term use, the high-voltage power pipe is prone to loosening or wear due to external factors such as wind and rain. It may also cause rainwater to enter the metal cable tray of the main busbar, affecting the stability of power transmission and the service life of the connection.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a high-voltage power pipe connection structure for power transmission, comprising a metal cable tray, a busbar high-voltage power pipe disposed inside the metal cable tray, a main busbar disposed inside the busbar high-voltage power pipe, fixing holes evenly spaced at the top of the metal cable tray, a fixing base disposed above the fixing holes at the top of the metal cable tray, the fixing base being fixedly connected to the metal cable tray by self-tapping screws, an extension tube disposed at the bottom of the fixing base, a limit clip disposed on the outer wall of the extension tube, the extension tube engaging with the fixing holes, the limit clip engaging with the metal cable tray, an inner support tube disposed at the top of the fixing base, an outer sleeve disposed outside the inner support tube at the top of the fixing base, a slot disposed on the side of the inner support tube and the outer sleeve approaching each other, a wiring high-voltage power pipe inserted into the inner wall of the slot, a connecting wire disposed inside the wiring high-voltage power pipe, the connecting wire passing through the inner support tube and electrically connected to the main busbar.

[0005] Preferably, the outer wall of the outer sleeve is provided with a fixing groove, the inner side of the outer sleeve is provided with equal-distance shrinkage grooves, the inner wall of the fixing groove is fitted with a clamp, and the outer wall of the inner support tube and the inner wall of the outer sleeve are both provided with equal-distance anti-slip protrusions, which are fitted with the high-voltage power pipe for wiring.

[0006] Preferably, the outer wall of the busbar high-voltage power pipe is equidistantly connected with support clips, the support clips are connected to the metal cable tray, and the inner wall of the inner support pipe is fixedly connected with a rubber limiting sleeve, the rubber limiting sleeve is connected to the connecting wire.

[0007] Preferably, the inner wall of the slot is fitted with a sealing ring, the sealing ring is fitted with the high-voltage power pipe, and the outer sleeve and the high-voltage power pipe are provided with sealant on the side that are close to each other.

[0008] Preferably, a rubber pad is connected to the bottom of the fixed base, and the rubber pad is connected to the metal cable tray.

[0009] This utility model provides a high-voltage power pipe connection structure for power transmission. It offers the following advantages: This high-voltage power pipe connection structure, through the cooperation of a metal cable tray, a busbar high-voltage power pipe, a main busbar, fixing holes, a fixing base, self-tapping screws, an extension tube, a limit clip, an inner support tube, an outer sleeve, a slot, a wiring high-voltage power pipe, and a connecting wire, achieves stable connection by correspondingly opening fixing holes at the top of the metal cable tray near each grid-connected inverter. The fixing base is installed on top of these fixing holes, allowing the end of the wiring high-voltage power pipe to be secured between the inner support tube and the outer sleeve. This ensures a stable connection between the connecting wire and the main busbar, preventing the wiring high-voltage power pipe and connecting wire from loosening or falling off due to external factors such as wind during use. It also prevents rainwater from seeping into the metal cable tray through the openings, thus improving the stability of power transmission and extending the service life of the wiring.

[0010] Through the cooperation of the fixed base, inner support tube, outer tube, slot, high-voltage power pipe, fixing groove, shrink groove, clamp, and anti-slip protrusions, the outer tube is tightened by tightening the clamp, thereby clamping and fixing the end of the high-voltage power pipe. At the same time, the anti-slip protrusions increase the friction between the inner support tube, outer tube and the high-voltage power pipe, which can further improve the fixing effect and connection stability of the high-voltage power pipe and the fixed base. This ensures that the high-voltage power pipe has strong wind pressure resistance and rainwater leakage resistance in harsh outdoor environments, and facilitates the installation and disassembly of the high-voltage power pipe, thus improving the convenience of power system maintenance. Attached Figure Description

[0011] Figure 1This is a schematic diagram of the structure of this utility model;

[0012] Figure 2 This is a schematic diagram showing the external appearance of the metal cable tray, fixing hole, and fixing base in this utility model;

[0013] Figure 3 This is a schematic diagram showing the external appearance of the fixed base, inner support tube, and outer sleeve in this utility model;

[0014] Figure 4 for Figure 1 A magnified view of a portion of region A in the middle;

[0015] Figure 5 for Figure 1 A magnified view of a portion of region B in the middle.

[0016] In the diagram: 1. Metal cable tray; 2. Busbar high-voltage power conduit; 3. Main busbar; 4. Fixing hole; 5. Fixing base; 6. Self-tapping screw; 7. Extension tube; 8. Limiting clip; 9. Inner support tube; 10. Outer tube; 11. Slot; 12. Wiring high-voltage power conduit; 13. Connecting wire; 14. Fixing slot; 15. Shrink groove; 16. Clamp; 17. Anti-slip convex strip; 18. Support clip; 19. Rubber limiting sleeve; 20. Sealing ring; 21. Sealant; 22. Rubber pad. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] In the existing technology, there is no effective connection and fixation between the high-voltage power pipe and the metal cable tray outside the main busbar. During long-term use, the high-voltage power pipe is prone to loosening or wear due to external factors such as wind and rain. It may also cause rainwater to enter the metal cable tray of the main busbar, affecting the stability of power transmission and the service life of the wiring.

[0019] In view of this, the present invention provides a high-voltage power pipe connection structure for power transmission. Through the cooperation of a metal cable tray, a high-voltage power pipe, a main busbar, fixing holes, a fixing base, self-tapping screws, an extension tube, a limit clip, an inner support tube, an outer sleeve, a slot, a wiring high-voltage power pipe, and connecting wires, fixing holes are correspondingly opened at the top of the metal cable tray near each grid-connected inverter. The fixing base is installed on the top of the fixing holes, allowing the end of the wiring high-voltage power pipe to be fixed between the inner support tube and the outer sleeve. This ensures a stable connection between the connecting wires and the main busbar, preventing the wiring high-voltage power pipes and connecting wires from loosening or falling off due to external factors such as wind during use. It also prevents rainwater from seeping into the interior of the metal cable tray, ensuring the stability of power transmission and the service life of the wiring.

[0020] Those skilled in the art should connect all electrical components and their compatible power supplies in this case via wires. Appropriate controllers and encoders should be selected according to the actual situation to meet control requirements. The specific connection and control sequence should refer to the working principle described below, where the electrical components are connected in sequence. The detailed connection methods are well-known in the art. The following mainly introduces the working principle and process, and will not describe the electrical control further.

[0021] Depend on Figure 1-5 It is known that the high-voltage power pipe connection structure for power transmission includes a metal cable tray 1, a busbar high-voltage power pipe 2 is installed inside the metal cable tray 1, a main busbar 3 is installed inside the busbar high-voltage power pipe 2, fixing holes 4 are equidistantly opened on the top of the metal cable tray 1, a fixing base 5 is installed above the fixing holes 4 on the top of the metal cable tray 1, the fixing base 5 is fixedly connected to the metal cable tray 1 by self-tapping screws 6, an extension tube 7 is installed at the bottom of the fixing base 5, a limit clip 8 is installed on the outer wall of the extension tube 7, the extension tube 7 is connected to the fixing holes 4, the limit clip 8 is connected to the metal cable tray 1, an inner support tube 9 is installed on the top of the fixing base 5, an outer sleeve 10 is installed on the outside of the inner support tube 9 on the top of the fixing base 5, a slot 11 is installed on the side of the inner support tube 9 and the outer sleeve 10 that are close to each other, a wiring high-voltage power pipe 12 is inserted into the inner wall of the slot 11, a connecting wire 13 is installed inside the wiring high-voltage power pipe 12, the connecting wire 13 passes through the inner support tube 9 and is electrically connected to the main busbar 3;

[0022] In the specific implementation process, it is worth noting that through the cooperation between the metal cable tray 1, the high-voltage power pipe 2, and the main busbar 3, the metal cable tray 1 effectively supports and protects the high-voltage power pipe 2 within the photovoltaic power plant. The main busbar 3 is inserted into the interior of the high-voltage power pipe 2, preventing it from being directly exposed to the external environment, thereby extending its service life and making power transmission more stable and reliable. Through the cooperation between the metal cable tray 1, fixing holes 4, fixing bases 5, self-tapping screws 6, extension tubes 7, and limit clips 8, fixing holes 4 are correspondingly opened at the positions of the metal cable tray 1 near each grid-connected inverter. By inserting the bottom of the fixing base 5 into the fixing hole 4, the limit clips are secured. Card 8 forms a limit and is fixed to the metal cable tray 1 by self-tapping screws 6, ensuring the stability of the fixing base 5 on the metal cable tray 1 and preventing shaking or falling off under the influence of external factors such as wind. This ensures the structural stability and reliability between the fixing base 5 and the metal cable tray 1. Through the cooperation between the high-voltage power pipe 12 and the connecting wire 13, the connecting wire 13 connects the grid-connected inverter and the main bus 3, enabling the electrical energy generated by the grid-connected inverter to be efficiently and safely transmitted to the grid. The high-voltage power pipe 12 protects the connecting wire 13 from wear or damage during power transmission, ensuring the stability and safety of power transmission. The fit between the base 5, inner support tube 9, outer tube 10, slot 11, high-voltage power conduit 12, and connecting wire 13 is such that by inserting the end of the high-voltage power conduit 12 into the inside of the slot 11, the high-voltage power conduit 12 can be snapped between the inner support tube 9 and the outer tube 10 for fixation. This effectively supports and fixes the high-voltage power conduit 12 at the top of the metal cable tray 1, allowing the connecting wire 13 to pass through the fixing base 5 and connect to the main busbar 3, preventing the high-voltage power conduit 12 and the connecting wire 13 from loosening or falling off during use. The metal cable tray 1, high-voltage power conduit 2, main busbar 3, fixing hole 4, fixing base 5, self-tapping screw 6, extension tube 7, and limit... The fit between the positioning clip 8, inner support tube 9, outer sleeve 10, slot 11, high-voltage power pipe 12 and connecting wire 13 is achieved by opening fixing holes 4 at the top of the metal cable tray 1 near each grid-connected inverter, and installing the fixing base 5 on the top of the fixing holes 4. This allows the end of the high-voltage power pipe 12 to be fixed between the inner support tube 9 and the outer sleeve 10, ensuring a stable connection between the connecting wire 13 and the main busbar 3. This prevents the high-voltage power pipe 12 and the connecting wire 13 from loosening or falling off due to external factors such as wind during use, and also prevents rainwater from seeping into the interior of the metal cable tray 1 through the opening, thereby improving the stability of power transmission and the service life of the wiring.

[0023] Furthermore, the outer wall of the outer sleeve 10 is provided with a fixing groove 14, and the inner side of the outer sleeve 10 is provided with shrinkage grooves 15 at equal intervals. The inner wall of the fixing groove 14 is connected with a clamp 16. The outer wall of the inner support tube 9 and the inner wall of the outer sleeve 10 are both provided with anti-slip protrusions 17 at equal intervals. The anti-slip protrusions 17 are connected with the wiring high voltage power pipe 12.

[0024] In the specific implementation process, it is worth noting that through the cooperation between the fixed base 5, inner support tube 9, outer tube 10, slot 11, high-voltage power pipe 12, fixing slot 14, shrink groove 15, clamp 16 and anti-slip protrusion 17, after the high-voltage power pipe 12 is inserted into the slot 11, the outer tube 10 is tightened by tightening the clamp 16, thereby clamping and fixing the end of the high-voltage power pipe 12 with the inner support tube 9 and the outer tube 10. At the same time, the anti-slip protrusion 17 can increase the friction between the inner support tube 9 and the outer tube 10 and the high-voltage power pipe 12, further improving the fixing effect and connection stability of the high-voltage power pipe 12 and the fixed base 5, ensuring that the high-voltage power pipe 12 has strong wind pressure resistance and rainwater leakage resistance in harsh outdoor environments, thereby improving the stability and safety of the entire power transmission system. Furthermore, by loosening the clamp 16, it is convenient to install or disassemble the high-voltage power pipe 12, improving the convenience of power system maintenance.

[0025] Furthermore, the outer wall of the high-voltage power pipe 2 of the busbar is equidistantly connected with support clips 18, which are connected to the metal cable tray 1. The inner wall of the inner support pipe 9 is fixedly connected with a rubber limiting sleeve 19, which is connected to the connecting line 13.

[0026] In the specific implementation process, it is worth noting that through the cooperation between the metal cable tray 1, the bus high-voltage power pipe 2, and the support clip 18, the support clip 18 is fitted onto the outside of the bus high-voltage power pipe 2, so that the bus high-voltage power pipe 2 obtains stable support within the metal cable tray 1, preventing the bus high-voltage power pipe 2 from shaking or shifting within the metal cable tray 1, and ensuring that the bus high-voltage power pipe 2 obtains stable insulation support within the metal cable tray 1. Through the cooperation between the fixed base 5, the inner support pipe 9, the connecting wire 13, and the rubber limiting sleeve 19, the rubber limiting sleeve 19 has a certain elasticity and friction. After the connecting wire 13 passes through the rubber limiting sleeve 19, it can effectively fix and limit the connecting wire 13, preventing the connecting wire 13 from shaking or shifting within the inner support pipe 9. At the same time, the rubber limiting sleeve 19 can also provide a certain protection for the connecting wire 13 inside the high-voltage power pipe 12, preventing the connecting wire 13 from being damaged due to long-term external pressure or friction, ensuring the continuity and safety of power transmission.

[0027] Furthermore, a sealing ring 20 is fitted to the inner wall of the slot 11, and the sealing ring 20 is fitted to the high-voltage power pipe 12. A sealant 21 is provided on the side of the outer sleeve 10 and the high-voltage power pipe 12 that are close to each other.

[0028] In the specific implementation process, it is worth noting that through the cooperation between the slot 11, the high-voltage power pipe 12, the sealing ring 20, and the sealant 21, after the high-voltage power pipe 12 is inserted into the slot 11, it is pressed against the sealing ring 20, and the sealant 21 is used to seal the connection between the outer sleeve 10 and the high-voltage power pipe 12, thereby further improving the sealing and waterproof performance between the outer sleeve 10 and the high-voltage power pipe 12, preventing rainwater or other liquids from seeping in from the connection, which would have an adverse effect on the stable transmission of electricity, and ensuring the reliability and safety of power transmission.

[0029] Furthermore, a rubber pad 22 is connected to the bottom of the fixed base 5. The rubber pad 22 plays a buffering and sealing role between the metal cable tray 1 and the fixed base 5, which can prevent rainwater or other debris from seeping in from the gap between the fixed base 5 and the metal cable tray 1. The rubber pad 22 is connected to the metal cable tray 1.

[0030] In the specific implementation process, it is worth noting that the rubber pad 22 plays a buffering and sealing role between the metal cable tray 1 and the fixed base 5, which can prevent rainwater or other debris from seeping in from the gap between the fixed base 5 and the metal cable tray 1.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-voltage power transmission pipe connection structure, comprising a metal cable tray (1), characterized in that: The metal cable tray (1) is equipped with a busbar high-voltage power pipe (2) inside, and a main busbar (3) is installed inside the busbar high-voltage power pipe (2). The top of the metal cable tray (1) is provided with fixing holes (4) at equal intervals. The top of the metal cable tray (1) is provided with a fixing base (5) above the fixing holes (4). The fixing base (5) is fixedly connected to the metal cable tray (1) by self-tapping screws (6). The bottom of the fixing base (5) is provided with an extension tube (7). The outer wall of the extension tube (7) is provided with a limit clip (8). The extension tube (7) and the fixing hole (4) are connected. The limiting card (8) is connected to the metal cable tray (1). The top of the fixed base (5) is provided with an inner support tube (9). The top of the fixed base (5) is provided with an outer sleeve (10) outside the inner support tube (9). The inner support tube (9) and the outer sleeve (10) are provided with a slot (11) on the side close to each other. A high-voltage power pipe (12) is inserted into the inner wall of the slot (11). A connecting wire (13) is provided inside the high-voltage power pipe (12). The connecting wire (13) passes through the inner support tube (9) and is electrically connected to the main bus (3).

2. The high-voltage power transmission pipe connection structure according to claim 1, characterized in that: The outer wall of the outer sleeve (10) is provided with a fixing groove (14), and the inner side of the outer sleeve (10) is provided with equal-distance shrinkage grooves (15). The inner wall of the fixing groove (14) is connected with a clamp (16). The outer wall of the inner support tube (9) and the inner wall of the outer sleeve (10) are both provided with equal-distance anti-slip ridges (17). The anti-slip ridges (17) are connected with the wiring high-voltage power pipe (12).

3. The high-voltage power transmission pipe connection structure according to claim 1, characterized in that: The outer wall of the high-voltage power pipe (2) of the busbar is equidistantly connected with support clips (18), the support clips (18) are connected with the metal cable tray (1), and the inner wall of the inner support pipe (9) is fixedly connected with a rubber limiting sleeve (19), the rubber limiting sleeve (19) is connected with the connecting line (13).

4. The high-voltage power transmission pipe connection structure according to claim 1, characterized in that: The inner wall of the slot (11) is fitted with a sealing ring (20), which is fitted with the high-voltage power pipe (12). The outer sleeve (10) and the high-voltage power pipe (12) are fitted with sealant (21) on the side close to each other.

5. The high-voltage power transmission pipe connection structure according to claim 1, characterized in that: The bottom of the fixed base (5) is connected to a rubber pad (22), which is connected to the metal cable tray (1).

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