Vacuum coating optical fiber and carbon fiber composite overhead conductor

Abstract

The invention provides a vacuum coated optical fiber and carbon fiber composite overhead conductor, and relates to the technical field of overhead conductors, the overhead conductor comprises an overhead conductor body, the overhead conductor body comprises a carbon fiber composite core and a twisted layer, an optical fiber body is arranged in the carbon fiber composite core, and a high temperature resistant protective film is arranged outside the optical fiber body. And the twisted layer is arranged outside the carbon fiber composite core. According to the optical fiber, the high-temperature-resistant protective film is arranged outside the optical fiber body, so that the high-temperature-resistant performance of the optical fiber body can be enhanced, the optical fiber body is prevented from being damaged in the high-temperature curing process of the optical fiber body and the carbon fiber composite core, the detection performance of the optical fiber body is ensured, and the accuracy of a detection result is improved; the later operation and maintenance diagnosis difficulty of the overhead conductor is reduced, and the operation and maintenance cost of the overhead conductor is saved.

Description

Technical Field

[0001] The present invention relates to the technical field of overhead conductors, in particular to an overhead conductor composited with vacuum-coated optical fiber and carbon fiber. Background Art

[0002] Carbon fiber composite overhead conductors are a new type of overhead transmission conductor that uses carbon fiber composite materials as a reinforcement phase and is composited with metal conductors (such as aluminum and aluminum alloys). Its core design improves the mechanical properties of the conductor through the high strength and lightweight characteristics of carbon fiber, while maintaining the conductivity of metal to meet the needs of high-voltage and large-capacity power transmission. However, carbon fiber composite overhead conductors have low elongation and limited bending radius. They are easily damaged by bending during manufacturing, installation and use. In addition, since the carbon fiber composite core is inside the aluminum stranded layer, damage is not easy to detect. Therefore, optical fiber is usually added to the center of the carbon fiber rod of the carbon fiber composite overhead conductor. When the carbon fiber conductor is damaged due to bending, the optical fiber is also damaged simultaneously. The damage to the optical fiber can be determined by detecting changes in the optical signal of the optical fiber, thereby judging the damage to the carbon fiber composite overhead conductor.

[0003] For example, Chinese patent application number CN217765277U discloses a fiber Bragg grating (FBG) sensor and a carbon fiber composite conductor. The FBG sensor comprises a carbon fiber tube; an optical fiber with a detection grating engraved thereon, inserted into the tube; and a carbon fiber sheet interposed between the tube and the optical fiber, solidified to form a single piece with the tube. The carbon fiber composite conductor comprises a carbon fiber core rod; the aforementioned FBG sensor; and an aluminum strand.

[0004] However, when optical fiber and carbon fiber are composited into overhead conductors, high-temperature curing is required. During the high-temperature curing process, the protective layer on the surface of the optical fiber will be damaged, causing the transmission performance of the optical fiber to degrade, reducing the accuracy of the optical fiber detection results, and increasing the difficulty and cost of subsequent operation and maintenance diagnosis. Summary of the Invention

[0005] The present invention provides an overhead conductor composed of a vacuum-coated optical fiber and a carbon fiber composite, which is used to solve the technical problem that the protective layer on the surface of the optical fiber is damaged during the current high-temperature curing process, causing the transmission performance of the optical fiber to attenuate, reducing the accuracy of the optical fiber detection results, and increasing the difficulty and cost of subsequent operation and maintenance diagnosis.

[0006] In order to solve the above technical problems, the present invention discloses an overhead conductor composed of a vacuum-coated optical fiber and a carbon fiber composite, comprising: an overhead conductor body, the overhead conductor body comprising a carbon fiber composite core and a twisted layer, an optical fiber body arranged inside the carbon fiber composite core, a high-temperature resistant protective film arranged outside the optical fiber body, and a twisted layer arranged outside the carbon fiber composite core.

[0007] Preferably, the carbon fiber composite core includes a stranded carbon core or a rod-shaped carbon core.

[0008] Preferably, the stranded carbon core is formed by stranding a plurality of carbon fiber filaments.

[0009] Preferably, the rod-shaped carbon core comprises a large diameter carbon rod.

[0010] Preferably, the stranded layer comprises a plurality of aluminum wires, and the plurality of aluminum wires are stranded outside the carbon fiber composite core.

[0011] Preferably, the twisted layer is provided with at least two layers.

[0012] Preferably, a connecting device is provided at one end of the overhead conductor body, the connecting device comprises a rectangular shell with openings provided on the left and right sides of the rectangular shell, a connecting mechanism is provided inside the rectangular shell, and the connecting mechanism is used to connect two adjacent overhead conductor bodies.

[0013] Preferably, an operation port is provided at the bottom of the rectangular shell, a cover plate is provided below the operation port, and the cover plate is detachably connected to the bottom wall of the rectangular shell.

[0014] Preferably, the connecting mechanism includes two conductive plates, the front and rear sides of the conductive plates are slidingly connected to the front and rear inner walls of the rectangular shell, the two conductive plates are connected through a conductive component, an optical fiber connector is arranged between the two conductive plates, a through hole is arranged in the center of the conductive plate, the optical fiber body is connected to the optical fiber connector through the through hole, an annular connecting sleeve is arranged on the side of the conductive plate away from the optical fiber connector, the annular connecting sleeve is arranged on the outside of the twisted layer, guide columns are symmetrically arranged on the front and rear sides of the annular connecting sleeve, guide grooves corresponding to the guide columns are arranged on the front and rear inner walls of the rectangular shell, one end of the guide column away from the annular connecting sleeve is slidingly connected to the inner wall of the guide groove, a connecting spring is arranged in the guide groove, one end of the connecting spring is connected to the guide column, and the other end of the connecting spring is connected to the inner wall of the guide groove, a threaded hole is arranged at the bottom of the annular connecting sleeve, a screw is arranged in the threaded hole, a rotating wheel is arranged at the lower end of the screw, and the upper end of the screw extends into the annular connecting sleeve and contacts the outer wall of the twisted layer.

[0015] Preferably, the conductive component includes: a rectangular conductor, the rectangular conductor is arranged on the top inner wall of the rectangular shell, the front and rear sides of the rectangular conductor are respectively connected to the front and rear inner walls of the rectangular shell, a slide groove is arranged on the side of the rectangular conductor close to the conductive plate, a conductive column is arranged in the slide groove, a conductive slider is slidably arranged on the conductive column, a conductive slide plate is arranged near one end of the conductive slide plate, the conductive slide plate is connected to the bottom wall of the rectangular conductor for left and right sliding, the lower surface of the conductive slide plate is connected to the upper end of the conductive plate, a reset spring is sleeved on the conductive column, one end of the reset spring is connected to the conductive slider, and the other end of the reset spring is connected to the inner wall of the slide groove.

[0016] The technical solution of the present invention has the following advantages: The present invention provides an overhead conductor composed of a vacuum-coated optical fiber and a carbon fiber composite, relating to the technical field of overhead conductors, and comprising an overhead conductor body, the overhead conductor body comprising a carbon fiber composite core and a stranded layer, the optical fiber body disposed within the carbon fiber composite core, a high-temperature-resistant protective film disposed externally on the optical fiber body, and the stranded layer disposed externally on the carbon fiber composite core. In the present invention, by disposing a high-temperature-resistant protective film externally on the optical fiber body, the high-temperature resistance of the optical fiber body is enhanced, preventing damage to the optical fiber body during the high-temperature curing process with the carbon fiber composite core. This ensures the detection performance of the optical fiber body and improves the accuracy of the detection results, thereby reducing the difficulty of subsequent operation and maintenance diagnosis of the overhead conductor and saving the operation and maintenance costs of the overhead conductor.

[0017] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or will be understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the devices particularly pointed out in the written description and the accompanying drawings.

[0018] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0020] Figure 1 This is a schematic diagram of the optical fiber body structure of an overhead conductor composited with a vacuum-coated optical fiber and carbon fiber according to the present invention;

[0021] Figure 2 This is a schematic diagram of the structure of the stranded carbon core overhead conductor body of the present invention;

[0022] Figure 3 This is a schematic diagram of the structure of the rod-type carbon core overhead conductor body in the present invention;

[0023] Figure 4 This is a schematic diagram of a connection device for an overhead conductor composited with a vacuum-coated optical fiber and a carbon fiber according to the present invention;

[0024] Figure 5 For the present invention Figure 4 Cross-sectional view of the local structure at AA in the middle;

[0025] Figure 6 For the present invention Figure 4 A magnified view of the structure at point B in the middle;

[0026] Figure 7 For the present invention Figure 4 A magnified view of the structure at point C in the middle;

[0027] Figure 8 For the present invention Figure 4 A magnified view of the structure at point D in the middle;

[0028] Figure 9 For the present invention Figure 4 Enlarged view of the structure at point E in the middle.

[0029] In the figure: 1. Carbon fiber composite core; 2. Twisted layer; 3. Optical fiber body; 4. High temperature resistant protective film; 5. Rectangular shell; 6. Operation port; 7. Cover plate; 8. Conductive plate; 9. Optical fiber connector; 10. Through hole; 11. Annular connecting sleeve; 12. Screw; 13. Rotor; 14. Rectangular conductor; 15. Slide groove; 16. Conductive column; 17. Conductive slider; 18. Conductive slide plate; 19. Reset spring; 20. Annular groove; 21. Moving ring; 22. First spring; 23. Connecting plate; 24. Driving plate; 25. First connecting rod; 26. Push block; 27. Pressure rod; 28. Pressure plate; 29. ​​Second connecting rod; 30. Spring rod; 31. Sealing plate. DETAILED DESCRIPTION

[0030] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0031] In addition, in the present invention, descriptions such as "first" and "second" are only used for descriptive purposes, and do not specifically refer to the order or sequence, nor are they used to limit the present invention. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions and technical features between the various embodiments can be combined with each other, but this must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0032] Example 1:

[0033] The embodiment of the present invention provides an overhead conductor composed of a vacuum-coated optical fiber and a carbon fiber. Figure 1-Figure 3 As shown, it includes: an overhead conductor body, the overhead conductor body includes a carbon fiber composite core 1 and a stranded layer 2, an optical fiber body 3 is arranged inside the carbon fiber composite core 1, a high temperature resistant protective film 4 is arranged outside the optical fiber body 3, and the stranded layer 2 is arranged outside the carbon fiber composite core 1;

[0034] The carbon fiber composite core 1 includes a stranded carbon core or a rod-shaped carbon core;

[0035] The stranded carbon core is made of several carbon fiber filaments twisted together;

[0036] Rod-type carbon cores include large-diameter carbon rods;

[0037] The stranded layer 2 includes a plurality of aluminum wires, and the plurality of aluminum wires are stranded outside the carbon fiber composite core 1;

[0038] The twisted layer 2 is provided with at least two layers.

[0039] The working principle and beneficial effects of the above technical solution are as follows: the overhead conductor body of the present invention includes a carbon fiber composite core 1, a twisted layer 2 is arranged on the outside of the carbon fiber composite core 1 through a twisting process, and the twisted layer 2 is prepared by twisting a plurality of aluminum wires. The carbon fiber composite core 1 can be selected from any one of a twisted carbon core or a rod-type carbon core. When the twisted carbon core is selected, the twisted carbon core is twisted by a plurality of carbon fiber filaments, and a mounting hole is set in the center of a single carbon fiber filament; when the rod-type carbon core is selected, a mounting hole is set in the center of a single large-diameter carbon rod, and an optical fiber body 3 is arranged in the mounting hole. A high-temperature resistant protective film 4 is provided on the outer wall of the fiber body 3. The high-temperature resistant protective film 4 is prepared by vacuum coating. The high-temperature resistant protective film 4 adopts a vacuum coating material that meets the temperature resistance requirement of 500°C. By providing the high-temperature resistant protective film 4 on the outside of the optical fiber body 3, the high-temperature resistance of the optical fiber body 3 can be enhanced, and the optical fiber body 3 can be prevented from being damaged during the high-temperature curing process with the carbon fiber composite core 1, thereby ensuring the detection performance of the optical fiber body 3 and improving the accuracy of the detection results, which is conducive to reducing the difficulty of operation and maintenance diagnosis of the overhead wires in the later stage and saving the operation and maintenance costs of the overhead wires.

[0040] Example 2:

[0041] On the basis of the above embodiment 1, Figure 4-Figure 9 As shown, a connecting device is provided at one end of the overhead conductor body, and the connecting device includes a rectangular shell 5, with openings provided on the left and right sides of the rectangular shell 5, and a connecting mechanism is provided in the rectangular shell 5, and the connecting mechanism is used to connect two adjacent overhead conductor bodies;

[0042] An operation port 6 is provided at the bottom of the rectangular housing 5, and a cover plate 7 is provided below the operation port 6. The cover plate 7 is detachably connected to the bottom wall of the rectangular housing 5;

[0043] The connecting mechanism includes two conductive plates 8, the front and rear sides of the conductive plates 8 are slidably connected to the front and rear inner walls of the rectangular shell 5, the two conductive plates 8 are connected by a conductive component, an optical fiber connector 9 is arranged between the two conductive plates 8, a through hole 10 is arranged in the center of the conductive plate 8, the optical fiber body 3 passes through the through hole 10 and is connected to the optical fiber connector 9, an annular connecting sleeve 11 is arranged on the side of the conductive plate 8 away from the optical fiber connector 9, the annular connecting sleeve 11 is sleeved on the outside of the twisted layer 2, guide columns are symmetrically arranged on the front and rear sides of the annular connecting sleeve 11, and guide grooves corresponding to the guide columns are arranged on the front and rear inner walls of the rectangular shell 5. One end of the guide column is away from the annular connecting sleeve 11 and is slidably connected to the inner wall of the guide groove left and right. A connecting spring is arranged in the guide groove, one end of the connecting spring is connected to the guide column, and the other end of the connecting spring is connected to the inner wall of the guide groove. A threaded hole is arranged at the bottom of the annular connecting sleeve 11, a screw 12 is arranged in the threaded hole, a rotating wheel 13 is arranged at the lower end of the screw 12, and the upper end of the screw 12 extends into the annular connecting sleeve 11 and contacts the outer wall of the twisted layer 2;

[0044] The conductive component includes: a rectangular conductor 14, which is arranged on the top inner wall of the rectangular shell 5, and the front and rear sides of the rectangular conductor 14 are respectively connected to the front and rear inner walls of the rectangular shell 5, a slide groove 15 is provided on the side of the rectangular conductor 14 close to the conductive plate 8, and a conductive column 16 is provided in the slide groove 15. A conductive slider 17 is slidingly provided on the conductive column 16, and a conductive slide plate 18 is provided at one end of the conductive slide plate 8 close to the conductive plate 8. The conductive slide plate 18 is connected to the bottom wall of the rectangular conductor 14 for sliding left and right, and the lower surface of the conductive slide plate 18 is connected to the upper end of the conductive plate 8. A return spring 19 is sleeved on the conductive column 16, and one end of the return spring 19 is connected to the conductive slider 17, and the other end of the return spring 19 is connected to the inner wall of the slide groove 15.

[0045] The working principle and beneficial effects of the above technical solution are as follows: in order to further improve the convenience of overhead wire detection and reduce operation and maintenance costs, a connecting device is set at one end of the overhead wire body, and the two overhead wire bodies are connected through the connecting device. Specifically, the optical fiber length of the overhead wire body is longer than the length of the carbon fiber composite core 1, and the length of the carbon fiber composite core 1 is equal to the length of the twisted layer 2. Therefore, both ends of the optical fiber body 3 extend to the outside of the carbon fiber composite core 1, and both ends of the optical fiber body 3 are provided with plugs connected to the optical fiber connector 9. When connecting, first open the cover plate 7. The cover plate 7 and the bottom wall of the rectangular shell 5 can be connected with multiple bolts. Remove After the cover plate 7 is installed, the operation port 6 is connected to the bottom of the rectangular shell 5. The staff can connect the two overhead wire bodies through the operation port 6, insert the two overhead wire bodies into the annular connecting sleeve 11 through the openings, and the optical fiber body 3 passes through the through hole 10 in the center of the conductive plate 8 until the stranded layer 2 contacts the conductive plate 8, and then rotate the wheel 13. The wheel 13 drives the screw 12 to rotate in the threaded hole, so that the upper end of the screw 12 contacts the stranded layer 2, thereby fixing the stranded layer 2 in the annular connecting sleeve 11. The front and rear sides of the annular connecting sleeve 11 are slidably connected by the guide column and the guide groove. Under the action of the connecting spring, The stability of the annular connecting sleeve 11 can be improved. After the twisted layer 2 is connected, the two optical fiber bodies 3 are connected through the optical fiber connector 9. The number of through holes 10 is related to the number of optical fiber bodies 3. The number of through holes 10 on the conductive plate 8 corresponds to the number of optical fiber bodies 3, thereby ensuring that all optical fiber bodies 3 can pass through the conductive plate 8 and connect to each other, thereby ensuring the detection performance of the optical fiber body 3. The conductive plate 8, the conductive slide 18, and the rectangular conductor 14 are all made of conductors. The twisted layer 2 and the carbon fiber composite core 1 are electrically connected to the conductive slide 18 through the conductive plate 8, so that the two overhead wire bodies are connected through the conductive plate 8 and the conductive slide 18. The electric slide plate 18 and the rectangular conductor 14 are electrically connected; when inspecting the carbon fiber composite core 1 of the overhead conductor body, it is only necessary to remove the cover plate 7, and then it is possible to determine whether the optical fiber body 3 is damaged through the transmission result of the optical fiber body 3. When the optical fiber body 3 is damaged, it can be confirmed that the carbon fiber composite core 1 is damaged, and the damaged overhead conductor body can be replaced. During inspection, there is no need to separate the two overhead conductor bodies, and it is only necessary to remove the cover plate 7 at the bottom of the rectangular shell 5, and then inspect the optical fiber body 3 separately, which improves the convenience of inspection, reduces the difficulty of operation and maintenance diagnosis of the overhead conductor in the later stage, and saves the operation and maintenance cost of the overhead conductor.

[0046] Example 3:

[0047] On the basis of Example 2, an annular groove 20 is provided on the outer wall of the annular connecting sleeve 11, and a movable ring 21 is slidingly provided in the annular groove 20. The movable ring 21 is connected to the inner wall of the annular groove 20 close to the conductive plate 8 through a first spring 22. A connecting plate 23 is provided at the lower end of the movable ring 21, and a driving plate 24 is provided below the connecting plate 23. The front and rear sides of the driving plate 24 are respectively connected to the front and rear inner walls of the rectangular shell 5 for sliding up and down. A first connecting rod 25 is provided between the driving plate 24 and the connecting plate 23. The end of the first connecting rod 25 close to the conductive plate 8 is hinged to the connecting plate 23, and the end of the first connecting rod 25 away from the conductive plate 8 is hinged to the driving plate 24. A push block 26 is provided on the upper surface of the cover plate 7, and the upper end of the push block 26 is in contact with the lower surface of the driving plate 24.

[0048] The working principle and beneficial effects of the above technical solution are as follows: when the cover plate 7 is installed, the push block 26 can push the driving plate 24 upward, and the driving plate 24 slides vertically upward and drives the first connecting rod 25 to move. The first connecting rod 25 can push the connecting plate 23 to move toward the conductive plate 8. The connecting plate 23 drives the movable ring 21 to slide in the annular groove 20 toward the conductive plate 8. The first spring 22 is compressed and pushes the annular connecting sleeve 11 to move toward the conductive plate 8, so that the contact between the twisted layer 2, the carbon fiber composite core 1 and the conductive plate 8 is closer, and under the elastic force of the reset spring 19, the reliability of the connection between the twisted layer 2, the carbon fiber composite core 1 and the conductive plate 8 is further improved, ensuring that the two adjacent overhead conductor bodies can be stably connected and stable power transmission is achieved.

[0049] Example 4:

[0050] On the basis of Example 3, a pressure rod 27 is provided on the side of the driving plate 24 away from the conductive plate 8, and the pressure rod 27 is hinged to the bottom wall of the rectangular shell 5 at one end close to the driving plate 24. A pressure plate 28 is provided on the end of the pressure rod 27 away from the driving plate 24, and the pressure plate 28 contacts the outer wall of the twisted layer 2. A second connecting rod 29 is provided between the pressure rod 27 and the connecting plate 23, and one end of the second connecting rod 29 is hinged to the connecting plate 23, and the other end of the second connecting rod 29 is hinged to the pressure rod 27 near the middle position.

[0051] The working principle and beneficial effects of the above technical solution are as follows: when the cover plate 7 is installed, as the connecting plate 23 moves toward the conductive plate 8, the connecting plate 23 drives the pressure rod 27 to swing toward the twisted layer 2 through the second connecting rod 29, so that the pressure plate 28 is in close contact with the outer wall of the twisted layer 2. The pressure plate 28 is made of elastic non-slip material. Through the contact between the pressure plate 28 and the twisted layer 2, the reliability of the connection between the overhead conductor body and the rectangular shell 5 can be further improved, and the overhead conductor body can be prevented from escaping from the annular connecting sleeve 11, ensuring that the overhead conductor body can stably transmit electrical energy.

[0052] Example 5:

[0053] On the basis of any one of embodiments 2-4, a spring rod 30 is provided at the center of the upper surface of the cover plate 7 , a blocking plate 31 is provided at the upper end of the spring rod 30 , and the upper surface of the blocking plate 31 contacts the lower ends of the two conductive plates 8 .

[0054] The working principle and beneficial effects of the above technical solution are as follows: after installing the cover plate 7, the upper surface of the sealing plate 31 contacts the lower ends of the two conductive plates 8, and a closed space is formed by the conductive plates 8, the sealing plate 31 and the conductive slide plate 18, thereby protecting the optical fiber connector 9 and ensuring the stable connection of the optical fiber body 3. After removing the cover plate 7, the sealing plate 31 is separated from the lower end of the conductive plate 8, and the insertion end of the optical fiber body 3 can be pulled out from the optical fiber connector 9 for easy detection, further improving the convenience of detection, reducing the difficulty of operation and maintenance, and saving the operation and maintenance costs of overhead wires.

[0055] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0056] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0057] Although the embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the description and implementation methods. They can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and illustrations shown and described herein.

Claims

1. An overhead conductor composed of a vacuum-coated optical fiber and a carbon fiber, characterized in that: include: The overhead conductor body comprises a carbon fiber composite core (1) and a twisted layer (2); an optical fiber body (3) is arranged inside the carbon fiber composite core (1); a high-temperature resistant protective film (4) is arranged outside the optical fiber body (3); and the twisted layer (2) is arranged outside the carbon fiber composite core (1).

2. The vacuum-coated optical fiber and carbon fiber composite overhead conductor according to claim 1, characterized in that: The carbon fiber composite core (1) comprises a twisted carbon core or a rod-shaped carbon core.

3. The vacuum-coated optical fiber and carbon fiber composite overhead conductor according to claim 1, characterized in that: The stranded carbon core is made of several carbon fiber filaments stranded together.

4. The vacuum-coated optical fiber and carbon fiber composite overhead conductor according to claim 1, characterized in that: The rod-type carbon core comprises a large diameter carbon rod.

5. The vacuum-coated optical fiber and carbon fiber composite overhead conductor according to claim 1, characterized in that: The twisted layer (2) comprises a plurality of aluminum wires, and the plurality of aluminum wires are twisted outside the carbon fiber composite core (1).

6. The vacuum-coated optical fiber and carbon fiber composite overhead conductor according to claim 1, characterized in that: The twisted layer (2) is provided with at least two layers.

7. The vacuum-coated optical fiber and carbon fiber composite overhead conductor according to claim 1, characterized in that: A connecting device is provided at one end of the overhead conductor body. The connecting device comprises a rectangular shell (5). Openings are provided on the left and right sides of the rectangular shell (5). A connecting mechanism is provided inside the rectangular shell (5). The connecting mechanism is used to connect two adjacent overhead conductor bodies.

8. The vacuum-coated optical fiber and carbon fiber composite overhead conductor according to claim 7, characterized in that: An operating port (6) is provided at the bottom of the rectangular shell (5), a cover plate (7) is provided below the operating port (6), and the cover plate (7) is detachably connected to the bottom wall of the rectangular shell (5).

9. The vacuum-coated optical fiber and carbon fiber composite overhead conductor according to claim 8, characterized in that: The connecting mechanism comprises two conductive plates (8), the front and rear sides of the conductive plates (8) are slidably connected to the front and rear inner walls of the rectangular shell (5), the two conductive plates (8) are connected through a conductive component, an optical fiber connector (9) is arranged between the two conductive plates (8), a through hole (10) is arranged in the center of the conductive plate (8), the optical fiber body (3) passes through the through hole (10) and is connected to the optical fiber connector (9), an annular connecting sleeve (11) is arranged on the side of the conductive plate (8) away from the optical fiber connector (9), the annular connecting sleeve (11) is sleeved on the outside of the twisted layer (2), and the front of the annular connecting sleeve (11) is provided. Guide columns are symmetrically arranged on both sides of the rear portion, and guide grooves corresponding to the guide columns are arranged on the inner walls of the front and rear sides of the rectangular shell (5). One end of the guide column away from the annular connecting sleeve (11) is slidably connected to the inner wall of the guide groove. A connecting spring is arranged in the guide groove, one end of the connecting spring is connected to the guide column, and the other end of the connecting spring is connected to the inner wall of the guide groove. A threaded hole is arranged at the bottom of the annular connecting sleeve (11), a screw rod (12) is arranged in the threaded hole, a rotating wheel (13) is arranged at the lower end of the screw rod (12), and the upper end of the screw rod (12) extends into the annular connecting sleeve (11) and contacts the outer wall of the twisted layer (2).

10. The vacuum-coated optical fiber and carbon fiber composite overhead conductor according to claim 9, characterized in that: The conductive component comprises: a rectangular conductor (14), the rectangular conductor (14) is arranged on the top inner wall of the rectangular shell (5), the front and rear sides of the rectangular conductor (14) are respectively connected to the front and rear inner walls of the rectangular shell (5), a slide groove (15) is arranged on the side of the rectangular conductor (14) close to the conductive plate (8), a conductive column (16) is arranged in the slide groove (15), a conductive slider (17) is slidably arranged on the conductive column (16), a conductive slide plate (18) is arranged near one end of the conductive slide plate (8), the conductive slide plate (18) is connected to the bottom wall of the rectangular conductor (14) in a left-right sliding manner, the lower surface of the conductive slide plate (18) is connected to the upper end of the conductive plate (8), a reset spring (19) is sleeved on the conductive column (16), one end of the reset spring (19) is connected to the conductive slider (17), and the other end of the reset spring (19) is connected to the inner wall of the slide groove (15).

Images