A high capacity transmission high voltage cable

Abstract

The application provides a high-capacity transmission high-voltage cable, which comprises a cable and a mounting mechanism arranged outside the cable, wherein the mounting mechanism comprises a sleeve, a mounting seat, a connecting pipe, a fixing seat, a limiting ring, a spring and a limiting bead; the sleeve is arranged outside one end of the cable, a limiting groove is formed in the outer wall of the sleeve; the mounting seat is sleeved outside the other end of the cable; the connecting pipe is arranged on the mounting seat; the fixing seat is fixed outside the connecting pipe; the limiting ring is sleeved outside the connecting pipe; the spring is sleeved outside the connecting pipe and connected to the fixing seat and the limiting ring at two ends respectively; a connecting hole is formed in the outer wall of the connecting pipe; and the limiting bead is arranged in the connecting hole. The mounting mechanism is additionally arranged outside the cable, so that the cable can be quickly installed, the sleeve and the connecting pipe can reinforce and protect the connection between the external equipment and the cable, and the influence of the external environment on the cable during long-term use is reduced.

Description

Technical Field

[0001] This invention relates to the technical field of cables, and more particularly to a high-capacity high-voltage transmission cable. Background Technology

[0002] A cable is a device used to transmit electrical energy or signals. It is usually made up of one or more mutually insulated conductors twisted together and covered with an outer insulating protective layer, forming a cable structure similar to a rope. In cable systems for long-distance, high-power electrical energy transmission, high-capacity high-voltage cables are often used for transmission.

[0003] When using high-voltage cables for power transmission, the connection between the cable and external equipment such as terminals, switchgear, and transformers can easily lead to phase misalignment due to poor phase alignment accuracy. Currently, the common method is to achieve phase positioning using standardized flanges, sealing the connection points and insulation transition sections with multiple layers of sealing tape and applying silicone grease, while also installing stress cones. However, this solution is limited by the poor compatibility of standardized flanges with non-standard equipment. It remains difficult to effectively avoid safety hazards such as phase misalignment. Summary of the Invention

[0004] The present invention aims to at least partially solve one of the technical problems in the above-mentioned technologies.

[0005] Therefore, one objective of this invention is to provide a high-capacity high-voltage transmission cable. By adding an installation structure to the outside of the cable, installation can be completed quickly, while the sleeve and connecting pipe can reinforce and protect the connection points of external equipment, reducing the impact of the external environment during long-term use.

[0006] To achieve the above objectives, the first aspect of the present invention provides a high-capacity transmission high-voltage cable, comprising: a cable and an installation mechanism. The installation mechanism is disposed outside the cable and includes a sleeve, a mounting base, a connecting pipe, a fixing base, a limiting ring, a spring, and a limiting bead. The sleeve is disposed outside one end of the cable, and a limiting groove is formed in the outer wall of the sleeve. The mounting base is sleeved outside the other end of the cable. The connecting pipe is disposed on the mounting base. The fixing base is fixed outside the connecting pipe. The limiting ring is sleeved outside the connecting pipe. The spring is sleeved outside the connecting pipe, and both ends of the spring are connected to the fixing base and the limiting ring, respectively. A connecting hole is formed in the outer wall of the connecting pipe, and the limiting bead is disposed inside the connecting hole.

[0007] In addition, the high-capacity high-voltage transmission cable proposed according to the present invention may also have the following additional technical features:

[0008] Specifically, the outer wall of the sleeve is provided with a sliding groove, and the inside of the connecting pipe is provided with a sliding rail.

[0009] Specifically, a sealing block is provided at one end of the sleeve.

[0010] Specifically, the cable includes a conductor, a semiconductive layer, a conductor shielding layer, and an insulation layer. The semiconductive layer is fitted over the conductor, the conductor shielding layer is fitted over the semiconductive layer, and the insulation layer is fitted over the conductor shielding layer.

[0011] Specifically, the cable is provided with a protective assembly, which includes a protective tube, a first sealing shell, a second sealing shell, and a fixing bolt. The protective tube is sleeved on the outside of the cable, the first sealing shell is set on the outside of the connecting tube, the second sealing shell is rotatably connected to the first sealing shell, the second sealing shell has an installation hole on its outside, the fixing bolt is set in the installation hole, and the fixing bolt passes through the installation hole and is threadedly connected to the first sealing shell.

[0012] Specifically, a protective shell is fitted onto the outer wall of the limiting ring.

[0013] Specifically, an insulating shielding layer is provided on the outside of the insulating layer.

[0014] Specifically, a semi-conductive buffer layer is fitted outside the insulating shielding layer, and a metal sheath layer is fitted outside the semi-conductive buffer layer.

[0015] Specifically, an anti-corrosion layer is fitted over the metal sheath.

[0016] Specifically, an outer sheath is provided outside the anti-corrosion layer, and an outer semi-conductive layer is provided outside the outer sheath.

[0017] Compared with the prior art, the present invention has the following beneficial effects: by adding an installation structure to the outside of the cable, it can be installed quickly. At the same time, the sleeve and connecting pipe can reinforce and protect the connection of the external equipment. In addition, the protective components can protect the outside of the cable, further enhancing the protective effect of the connection between the cable and the external equipment and reducing the impact of the external environment during long-term use.

[0018] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein:

[0020] Figure 1 This is a schematic diagram of a high-capacity transmission high-voltage cable structure according to an embodiment of the present invention;

[0021] Figure 2 This is a schematic cross-sectional view of a high-capacity transmission high-voltage cable according to an embodiment of the present invention.

[0022] Figure 3 This is a schematic diagram of a high-capacity transmission high-voltage cable installation mechanism according to an embodiment of the present invention;

[0023] Figure 4 This is a schematic diagram of a high-capacity transmission high-voltage cable protection assembly according to an embodiment of the present invention.

[0024] Reference numerals: 1. Cable; 11. Conductor; 12. Semiconductor layer; 13. Conductor shielding layer; 14. Insulation layer; 15. Insulation shielding layer; 16. Semiconductor buffer layer; 17. Metal sheath layer; 18. Anti-corrosion layer; 19. Outer sheath layer; 110. Outer semiconductor layer; 2. Mounting mechanism; 21. Sleeve; 22. Limiting groove; 23. Mounting base; 24. Connecting pipe; 25. Fixing base; 26. Limiting ring; 27. Spring; 28. Connecting hole; 29. ​​Limiting bead; 210. Slide groove; 211. Slide rail; 212. Sealing block; 3. Protective component; 31. Protective tube; 32. First sealing shell; 33. Second sealing shell; 34. Mounting hole; 35. Fixing bolt; 36. Protective shell. Detailed Implementation

[0025] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0026] A high-capacity transmission high-voltage cable according to an embodiment of the present invention is described below with reference to the accompanying drawings.

[0027] like Figures 1-4 As shown, an embodiment of the present invention provides a high-capacity high-voltage transmission cable, comprising: a cable 1 and an installation mechanism 2. The installation mechanism 2 is disposed outside the cable 1 and includes a sleeve 21, a mounting base 23, a connecting pipe 24, a fixing base 25, a limiting ring 26, a spring 27, and a limiting bead 29. The sleeve 21 is disposed outside one end of the cable 1, and a limiting groove 22 is formed on the outer wall of the sleeve 21. The mounting base 23 is sleeved outside the other end of the cable 1. The connecting pipe 24 is disposed on the mounting base 23. The fixing base 25 is fixed outside the connecting pipe 24. The limiting ring 26 is sleeved outside the connecting pipe 24. The spring 27 is sleeved outside the connecting pipe 24, and both ends of the spring 27 are connected to the fixing base 25 and the limiting ring 26, respectively. A connecting hole 28 is formed on the outer wall of the connecting pipe 24, and the limiting bead 29 is disposed inside the connecting hole 28. A sliding groove 210 is formed on the outer wall of the sleeve 21, and a sliding rail 211 is provided inside the connecting pipe 24. A sealing block 212 is provided at one end of the sleeve 21.

[0028] Specifically, when installing cable 1, the relevant personnel fix the sleeve 21 to the outside of cable 1, and at the same time, fix the connecting pipe 24 to the connection point of cable 1 or the outside of the equipment connected to cable 1 through the mounting base 23. Then, the relevant personnel pull the limiting ring 26 to compress the spring 27. At this time, the spring 27 stores and compresses. Then, the relevant personnel align the end of cable 1 with the sleeve 21 with the inside of the connecting pipe 24 and insert it. At this time, the outer wall of the sleeve 21 will contact the limiting bead 29 in the connecting hole 28 of the connecting pipe 24 and push the limiting bead 29 along the limited direction of the connecting hole 28. At the same time, as the sleeve 21 is inserted, the slide rail 211 on the inner wall of the connecting pipe 24 will gradually be locked into the slide groove 210 on the outer wall of the sleeve 21 for limiting. When the sleeve 21 is fully inserted into the connecting tube 24, the limiting groove 22 on the outer wall of the sleeve 21 is aligned with the connecting hole 28. At the same time, the relevant personnel will release the limiting ring 26. At this time, the spring 27 begins to reset and pops out the limiting ring 26. Under the action of the fixing seat 25, the limiting ring 26 will be restricted at the opening of the connecting hole 28 when it pops out, and the inner wall of the limiting ring 26 will contact the limiting bead 29 and press it into the connecting tube 24 along the limited direction of the connecting hole 28, so that the limiting bead 29 can be inserted into the limiting groove 22, thereby completing the fixation of the cable 1.

[0029] In one embodiment of this application, such as Figure 1 and Figure 2 As shown, cable 1 includes a conductor 11, a semiconductive layer 12, a conductor shielding layer 13, and an insulation layer 14. The semiconductive layer 12 is sleeved on the outside of the conductor 11, the conductor shielding layer 13 is sleeved on the outside of the semiconductive layer 12, the insulation layer 14 is sleeved on the outside of the conductor shielding layer 13, an insulating shielding layer 15 is sleeved on the outside of the insulation layer 14, a semiconductive buffer layer 16 is sleeved on the outside of the insulating shielding layer 15, a metal sheath layer 17 is sleeved on the outside of the semiconductive buffer layer 16, an anti-corrosion layer 18 is sleeved on the outside of the metal sheath layer 17, an outer sheath layer 19 is sleeved on the outside of the anti-corrosion layer 18, and an outer semiconductive layer 110 is sleeved on the outside of the outer sheath layer 19.

[0030] It should be noted that the conductor 11 described in this embodiment is a copper conductor 11 made of 4 to 6 segmented strands. The semiconductive layer 12 is made of nylon. The conductor shielding layer 13 and the insulating shielding layer 15 are made of ultra-smooth semiconductive polyolefin shielding material. The insulating layer 14 is preferably made of ultra-clean ultra-high voltage cross-linked polyethylene insulating material, but can also be made of ultra-clean cross-linked polyethylene insulating material. The innermost layer of the semiconductive buffer layer 16 is a layer of semiconductive butyl tape. The metal sheath layer 17 is a smooth aluminum sheath. The anti-corrosion layer 18 is made of hot melt adhesive material. The outer sheath layer 19 is made of polyethylene material. The outer semiconductive layer 110 is coated with graphite.

[0031] Understandably, during use, the dielectric properties of the insulating layer 14 are guaranteed; the stress that suppresses relative displacement is released by the insulating shielding layer 15; the semiconductive buffer layer 16 is fully bonded to the insulating shielding layer 15; the metal sheath layer 17 improves the drawbacks of linear contact in the corrugated aluminum sheath; the anti-corrosion layer 18 ensures that the metal sheath layer 17 and the outer sheath layer 19 are tightly bonded together, which is beneficial for heat conduction; the outer sheath layer 19 effectively reduces the thermal resistance coefficient; and the outer semiconductive layer 110 reduces the thickness of the sheath layer.

[0032] In one embodiment of this application, such as Figure 4 As shown, a protective assembly 3 is provided on the outside of the cable 1. The protective assembly 3 includes a protective tube 31, a first sealing shell 32, a second sealing shell 33, and a fixing bolt 35. The protective tube 31 is sleeved on the outside of the cable 1. The first sealing shell 32 is disposed on the outside of the connecting tube 24. The second sealing shell 33 is rotatably connected to the first sealing shell 32. An installation hole 34 is opened on the outside of the second sealing shell 33. The fixing bolt 35 is disposed in the installation hole 34 and is threadedly connected to the first sealing shell 32 after passing through the installation hole 34. A protective shell 36 is sleeved on the outer wall of the limiting ring 26.

[0033] Specifically, before installing the sleeve 21 on the outside of the cable 1, the relevant personnel will first put the protective tube 31 on the outside of the cable 1, and then install the sleeve 21 on the outside of the protective tube 31. After the cable 1 is installed, the relevant personnel will put the first sealing shell 32 on the outside of the connecting tube 24, close the second sealing shell 33, and then insert the fixing bolt 35 into the mounting hole 34 and tighten it. At this time, the connection between the connecting tube 24 and the sleeve 21 will be completely wrapped inside the first sealing shell 32 and the second sealing shell 33 to prevent it from being affected by the external environment during long-term use.

[0034] Working principle: When installing cable 1, the relevant personnel fix the sleeve 21 to the outside of cable 1, and at the same time fix the connecting pipe 24 to the connection point of cable 1 or the outside of the equipment connected to cable 1 through the mounting base 23. Then, the relevant personnel pull the limiting ring 26 to compress the spring 27. At this time, the spring 27 stores and compresses. Then, the relevant personnel align the end of cable 1 with the sleeve 21 with the inside of the connecting pipe 24 and insert it. At this time, the outer wall of the sleeve 21 will contact the limiting bead 29 in the connecting hole 28 of the connecting pipe 24 and push the limiting bead 29 along the limited direction of the connecting hole 28. At the same time, as the sleeve 21 is inserted, the slide rail 211 on the inner wall of the connecting pipe 24 will gradually be locked into the slide groove 210 on the outer wall of the sleeve 21 for limiting. When the sleeve 21 is fully inserted into the connecting tube 24, the limiting groove 22 on the outer wall of the sleeve 21 is aligned with the connecting hole 28. At the same time, the relevant personnel will release the limiting ring 26. At this time, the spring 27 will start to reset and pop out the limiting ring 26. Under the action of the fixing seat 25, the limiting ring 26 will be restricted at the opening of the connecting hole 28 when it pops out, and the inner wall of the limiting ring 26 will contact the limiting bead 29 and squeeze it into the connecting tube 24 along the limited direction of the connecting hole 28, so that the limiting bead 29 can be inserted into the limiting groove 22, thereby completing the fixation of the cable 1. Before installing the sleeve 21 on the outside of the cable 1, the relevant personnel will first put the protective tube 31 on the outside of the cable 1, and then install the sleeve 21 on the outside of the protective tube 31. After the cable 1 is installed, the relevant personnel will put the first sealing shell 32 on the outside of the connecting pipe 24, close the second sealing shell 33, and then insert the fixing bolt 35 into the mounting hole 34 and tighten it. At this time, the connection between the connecting pipe 24 and the sleeve 21 will be completely wrapped inside the first sealing shell 32 and the second sealing shell 33 to prevent it from being affected by the external environment during long-term use.

[0035] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0036] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0037] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A high-capacity high-voltage transmission cable, characterized in that, include: A cable (1) and an installation mechanism (2), wherein the installation mechanism (2) is disposed outside the cable (1), and the installation mechanism (2) includes a sleeve (21), a mounting base (23), a connecting pipe (24), a fixing base (25), a limiting ring (26), a spring (27), and a limiting bead (29). The sleeve (21) is disposed outside one end of the cable (1), and a limiting groove (22) is formed on the outer wall of the sleeve (21). The mounting base (23) is sleeved outside the other end of the cable (1). The connecting tube (24) is mounted on the mounting base (23), the fixing base (25) is fixed to the outside of the connecting tube (24), the limiting ring (26) is sleeved on the outside of the connecting tube (24), the spring (27) is sleeved on the outside of the connecting tube (24), and the two ends of the spring (27) are respectively connected to the fixing base (25) and the limiting ring (26). The outer wall of the connecting tube (24) is provided with a connecting hole (28), and the limiting bead (29) is disposed in the connecting hole (28).

2. The high-capacity high-voltage transmission cable according to claim 1, characterized in that, The outer wall of the sleeve (21) is provided with a sliding groove (210), and the inside of the connecting pipe (24) is provided with a sliding rail (211).

3. The high-capacity high-voltage transmission cable according to claim 1, characterized in that, A sealing block (212) is provided at one end of the sleeve (21).

4. The high-capacity high-voltage transmission cable according to claim 1, characterized in that, The cable (1) includes a conductor (11), a semiconductive layer (12), a conductor shielding layer (13), and an insulation layer (14). The semiconductive layer (12) is sleeved on the outside of the conductor (11), the conductor shielding layer (13) is sleeved on the outside of the semiconductive layer (12), and the insulation layer (14) is sleeved on the outside of the conductor shielding layer (13).

5. A high-capacity high-voltage transmission cable according to claim 4, characterized in that, The cable (1) is provided with a protective component (3). The protective component (3) includes a protective tube (31), a first sealing shell (32), a second sealing shell (33), and a fixing bolt (35). The protective tube (31) is sleeved on the outside of the cable (1). The first sealing shell (32) is disposed on the outside of the connecting tube (24). The second sealing shell (33) is rotatably connected to the first sealing shell (32). The second sealing shell (33) has an installation hole (34) on its outside. The fixing bolt (35) is disposed in the installation hole (34) and is threadedly connected to the first sealing shell (32) after passing through the installation hole (34).

6. A high-capacity high-voltage transmission cable according to claim 1, characterized in that, The outer wall of the limiting ring (26) is fitted with a protective shell (36).

7. A high-capacity high-voltage transmission cable according to claim 4, characterized in that, An insulating shielding layer (15) is provided on the outside of the insulating layer (14).

8. A high-capacity high-voltage transmission cable according to claim 7, characterized in that, The insulating shielding layer (15) is covered with a semi-conductive buffer layer (16), and the semi-conductive buffer layer (16) is covered with a metal sheath layer (17).

9. A high-capacity high-voltage transmission cable according to claim 8, characterized in that, The metal sheath layer (17) is covered with an anti-corrosion layer (18).

10. A high-capacity high-voltage transmission cable according to claim 9, characterized in that, The anti-corrosion layer (18) is covered with an outer sheath layer (19), and the outer sheath layer (19) is covered with an outer semiconductive layer (110).

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