Highly oriented high voltage cable for new energy

Abstract

The application discloses a new energy high-guiding high-voltage cable and relates to the technical field of power cables.The new energy high-guiding high-voltage cable comprises a sheath, a plurality of cable cores are installed in the sheath at equal angles along a circumferential direction, a protective pad is installed at a position outside the cable cores in the sheath, a plurality of telescopic sleeves are uniformly and equidistantly sleeved outside the sheath, wear-resistant sleeves are installed at both ends of the telescopic sleeves, a plurality of hollow ribs are installed at equal angles along the circumferential direction of the outer wall of the wear-resistant sleeves, and the new energy high-guiding high-voltage cable can effectively recycle and transform the heat generated in the cable conveying process, can avoid the direct hard friction of the inside and outside of the cable while improving the fitting and compactness of the structures inside the cable, can greatly improve the wear resistance of the cable, can conveniently replace the cable parts, can fully prolong the effective service life of the cable, can make the cable more efficiently applied, and can greatly improve the use durability of the cable.

Description

Technical Field

[0001] This invention relates to the field of power cable technology, specifically to a high-conductivity high-voltage cable for new energy applications. Background Technology

[0002] New energy power cables are special cables used in new energy vehicles, charging facilities, photovoltaic and wind power and other fields. Through material optimization and structural reinforcement, they achieve high wear resistance and can withstand mechanical friction, vibration and outdoor environmental corrosion. They also have the characteristics of aging resistance, high and low temperature resistance and flame retardancy, ensuring stable power transmission in new energy systems and having a longer lifespan than traditional cables. They are a key component of the new energy industry chain.

[0003] However, current power cables lack effective protection measures. They rely solely on simple stacking of materials and the inherent properties of the materials to improve the cable's wear resistance. During use, the cable is not only susceptible to direct hard friction from the outside, but its internal structure is also prone to misalignment and displacement due to external interference, resulting in internal wear. This makes the cable prone to breakage and requires complete replacement, which seriously affects the cable's durability and increases the cable's loss costs. Summary of the Invention

[0004] This invention provides a high-conductivity high-voltage cable for new energy applications, which effectively solves the problem mentioned in the background art: current power cables lack effective protection measures and rely solely on the properties of the materials themselves to improve the cable's wear resistance. During use, the cable is not only easily subjected to direct hard friction from the outside, but its internal structure is also prone to misalignment and displacement due to external interference, resulting in internal wear. This makes the cable prone to breakage and requires complete replacement, seriously affecting the cable's durability and increasing the cable's loss costs.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a high-conductivity high-voltage cable for new energy applications, comprising a sheath, wherein a plurality of cable cores are installed at equal angles along the circumferential direction inside the sheath, and an integrated protective mechanism is installed on the outside of the cable cores;

[0006] The integrated protective mechanism includes a protective pad;

[0007] Inside the sheath, a pad is installed at the outer position of the cable core. Several telescopic sleeves are evenly and equidistantly fitted on the outer side of the sheath. Wear-resistant sleeves are installed at both ends of the telescopic sleeves. Several hollow ribs are installed at equal angles along the circumferential direction on the outer wall of the wear-resistant sleeves. Ribs are slidably installed inside the hollow ribs. Rolling balls are embedded on both sides of the side end face of the ribs. A guide hole is opened in the middle of the side end face of the ribs.

[0008] The outer wall of the rib is provided with a side groove, and the outer wall of the sheath is provided with a rail groove corresponding to the position of the rib. Threaded arc plates are installed on both sides of the outer curved surface of the sheath. Threaded rings are installed on the outer side of the threaded arc plates through threads. Guide tubes are installed on both sides of the outer curved surface of the pad. Several insertion tubes are installed at equal angles along the circumferential direction on the inner curved surface of the pad. A limit sleeve is sleeved on the outer side of the cable core.

[0009] Preferably, an insulating sleeve is fitted onto the outer wall of the cable core, and a shielding sleeve is embedded in the inner wall of the insulating sleeve. The insulating sleeve is located inside the limiting sleeve, and the insulating sleeve and the limiting sleeve are integrally co-extruded.

[0010] Preferably, the pad is an airbag structure, and the outer curved surface of the pad is provided with several annular grooves at equal intervals, and the sleeve fits the pad. The outer curved surface of the limiting sleeve is provided with several arc-shaped grooves at equal angles along the circumferential direction. The inner wall of the pad is embedded with a tie rod at the position corresponding to the arc-shaped groove, and the tie rod fits the arc-shaped groove.

[0011] Preferably, the inner cavity of the protective pad is divided into a locking cavity and a support cavity, and the locking cavity and the support cavity are connected by a tube. The cable core is located at the gap between the locking cavity and the support cavity, and the locking cavity is located on the outside of the cable core.

[0012] Preferably, the conduit is connected to the rail groove, the threaded ring is rotatably connected to the wear-resistant sleeve, and an air valve is embedded on one side of the outer curved surface of the threaded ring.

[0013] Preferably, the hollow rib is filled with nitrogen at the inner side of the side groove, the telescopic sleeve and the wear-resistant sleeve are filled with nitrogen at the outer side of the protective sleeve, and the pad is filled with nitrogen. The hollow rib cavity is connected to the rail groove through a guide hole, and the rib and the ball are fitted with the rail groove.

[0014] Preferably, the sheath is equipped with a sealing and locking mechanism at both ends;

[0015] The sealing and locking mechanism includes a threaded ring;

[0016] Both ends of the sheath are equipped with threaded rings. A threaded outer seat is rotatably installed on the outer side of one threaded ring, and a threaded inner seat is rotatably installed on the outer side of the other threaded ring. A sealing ring is installed at the end of both the threaded outer seat and the threaded inner seat. A sealing groove is opened on the side end of the threaded ring corresponding to the position of the sealing ring. Threaded guide rings are rotatably installed on the inner side of both the threaded outer seat and the threaded inner seat corresponding to the position of the threaded ring.

[0017] An arc groove is provided on one side of the outer curved surface of the threaded guide ring. A partition is installed at the bottom of the inner wall of the threaded outer seat and the threaded inner seat corresponding to the position of the arc groove. An inner hole is provided at the end of the threaded outer seat and the threaded inner seat corresponding to the position of the rail groove. Circular grooves are provided on both end faces of the threaded guide ring corresponding to the positions of the inner holes.

[0018] A front hole is provided on one end face of the threaded guide ring at one end of the arc groove, and a rear hole is provided on the other end face of the threaded guide ring at the other end of the arc groove. A ring box is installed on the inner wall of the threaded outer seat and the threaded inner seat at one end of the threaded guide ring. A sealing gas ring is embedded in the inner side of the side end face of the ring box, and a bent hole is provided on the side end face of the ring box at the corresponding position of the circular groove.

[0019] Preferably, the threaded outer seat and the threaded inner seat are respectively connected to the threaded rings at both ends of the sheath via threaded guide rings, and the threaded outer seat and the threaded inner seat can be connected to each other via threads, with the threaded guide rings fitting into the threaded rings.

[0020] Preferably, the sealing ring fits into the sealing groove, and the outer wall of the sealing gas ring is tangent to the bottom surface of the rail groove.

[0021] Preferably, the rail groove is connected to the front hole through the inner hole and the circular groove, and the front hole and the rear hole are respectively connected to the space inside the arc groove located on both sides of the partition. The ring box is connected to the rear hole through the bent hole and the circular groove, and the inner cavity of the ring box is connected to the inner cavity of the sealing gas ring. The sealing gas ring is an elastic structure.

[0022] Compared with the prior art, the advantages of the present invention are: the present invention has a scientific and reasonable structure and is safe and convenient to use;

[0023] 1. Equipped with an integrated protective mechanism, this system, through the cooperation of a protective pad, telescopic sleeve, wear-resistant sleeve, and conduit, constructs a dynamic protective structure, providing multiple layers of comprehensive protection for the cable. On one hand, it can work with hollow ribs, ribs, balls, side grooves, guide holes, and rail grooves to achieve dynamic stress relief, effectively preventing the cable from being subjected to direct hard friction. This effectively disperses and offsets the frictional force experienced by the cable during use, significantly improving the wear resistance of the wear-resistant sleeve, reducing its wear rate, and allowing for more durable application. On the other hand, it provides stable elastic support to the cable, making it fuller and more elastic. This not only effectively prevents hard friction between the sheath and the wear-resistant sleeve, further eliminating the impact of external friction, but also works with the conduit and limiting sleeve to make the internal structures of the cable more compact, effectively preventing relative misalignment and displacement of the internal structures, reducing internal friction, and further improving the cable's wear resistance.

[0024] 2. By combining the threaded arc plate and threaded ring, the elasticity of the expansion sleeve can be fully utilized, allowing the wear-resistant sleeve to more stably absorb external wear forces. Furthermore, the wear-resistant sleeve can be easily replaced, indirectly extending the effective service life of the cable. This allows for the replacement of partial cable components, improving cable utilization while saving on maintenance costs. The combination of conduit, insert, guide hole, and rail groove forms a flow-diverting structure, synchronously guiding nitrogen gas inside the cable. This not only promotes rapid heat exchange between the inside and outside of the cable but also balances temperature and pressure throughout the cable, effectively addressing the issue of cables being more susceptible to wear due to localized overheating and stress imbalance. This further enhances the stability and durability of the cable during use.

[0025] 3. Equipped with a sealing and locking mechanism, through the cooperation of threaded rings, threaded outer seats, threaded inner seats, threaded guide rings, arc grooves, and partitions, it can further convert and utilize the internal air pressure of the cable and the heat dissipated during cable use, thereby simultaneously improving the cable's effective energy recovery and utilization rate. On the one hand, it can transform the internal air pressure of the cable and the heat dissipated during cable use into the deflection driving force of the threaded guide ring, realizing the limiting self-locking of the threaded outer and inner seats. This makes the connection between the threaded outer and inner seats and the sheath more stable and reliable, and can more effectively provide more comprehensive and stable protection support for the cable connection, improving the adequacy of cable protection work and significantly improving the stability of the cable connection.

[0026] On the other hand, it can be used in conjunction with sealing rings, sealing grooves, ring boxes, and sealing gas rings. With the current-limiting and guiding effect of the inner hole, circular groove, front hole, rear hole, and bend, it can achieve double sealing of the cable end. This not only effectively ensures the stability of the stress-relief protection work of the integrated protection mechanism, but also realizes the synchronous linkage between the integrated protection mechanism and the sealing locking mechanism, making the various structures of the cable more stable. This further provides more sufficient pre-support for the durability of the cable, enabling the cable to be used more efficiently and for longer. At the same time, it can further improve the stability of the cable connection, enhance the continuous stability of the cable, and further improve the convenience and stability of cable component replacement.

[0027] In summary, this cable can effectively recover and utilize the heat generated during cable transmission, and can make full use of internal air pressure to provide stable elastic support for the cable. While improving the fit and compactness of the internal structure of the cable, it can avoid direct hard friction between the inside and outside of the cable, greatly improving the wear resistance of the cable. Moreover, it can easily replace some cable components, significantly extending the effective service life of the cable, making the cable more efficient to use, and greatly improving its durability.

[0028] Furthermore, the integrated protective and sealing mechanisms of this cable, especially its functions in multiple stress relief, wear prevention, and air pressure-heat regulation, are highly compatible with the application requirements of high-conductivity high-voltage cables. High-conductivity high-voltage cables are often used for high-voltage transmission in narrow and complex bending paths, which places higher demands on the cable's flexibility, wear resistance, guiding stability, and temperature and pressure balance during operation. The protective structure proposed in this invention can not only effectively disperse friction and reduce local wear under complex working conditions, but also achieve dynamic balance adjustment of the overall stress and temperature of the cable through the synergistic conduction of internal air pressure and heat, thereby significantly improving the stability and durability of high-conductivity high-voltage cables in long-term operation. Therefore, while meeting the needs of conventional high-voltage cables, this invention can also provide more comprehensive protection and performance support for high-conductivity high-voltage cables, and has strong promotion and application value. Attached Figure Description

[0029] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0030] In the attached diagram:

[0031] Figure 1 This is a schematic diagram of the structure of the present invention;

[0032] Figure 2 This is a schematic diagram of the pad installation structure of the present invention;

[0033] Figure 3 This is a schematic diagram of the integrated protective mechanism structure of the present invention;

[0034] Figure 4 This is a schematic diagram of the rib mounting structure of the present invention;

[0035] Figure 5 This is a schematic diagram of the catheter installation structure of the present invention;

[0036] Figure 6 This is a schematic diagram of the telescopic sleeve installation structure of the present invention;

[0037] Figure 7 This is a schematic diagram of the threaded arc plate mounting structure of the present invention;

[0038] Figure 8 This is a schematic diagram of the cable core installation structure of the present invention;

[0039] Figure 9 This is a schematic diagram of the sealing and locking mechanism of the present invention;

[0040] Figure 10 This is a schematic diagram of the partition installation structure of the present invention;

[0041] The diagram is labeled as follows: 1. Sheath; 11. Cable core; 12. Insulating sleeve; 13. Shielding sleeve.

[0042] 200. Integrated protective mechanism; 201. Protective pad; 202. Telescopic sleeve; 203. Wear-resistant sleeve; 204. Hollow rib; 205. Rib; 206. Ball bearing; 207. Side groove; 208. Guide hole; 209. Rail groove; 210. Threaded arc plate; 211. Threaded ring; 212. Guide tube; 213. Insert tube; 214. Limiting sleeve;

[0043] 20. Annular groove; 21. Arc groove; 22. Tie rod; 23. Locking cavity; 24. Support cavity; 25. Air valve;

[0044] 300. Sealing and locking mechanism; 301. Threaded ring; 302. Threaded outer seat; 303. Threaded inner seat; 304. Sealing ring; 305. Sealing groove; 306. Threaded guide ring; 307. Arc groove; 308. Partition plate; 309. Inner hole; 310. Circular groove; 311. Front hole; 312. Rear hole; 313. Ring box; 314. Sealing gas ring; 315. Bend hole. Detailed Implementation

[0045] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0046] Example: Figure 1-10 As shown, the present invention provides a technical solution, a high-conductivity high-voltage cable for new energy, including a sheath 1, a plurality of cable cores 11 installed at equal angles along the circumferential direction inside the sheath 1, and an integrated protective mechanism 200 installed on the outside of the cable cores 11.

[0047] The integrated protective structure 200 includes a protective pad 201;

[0048] Inside the sheath 1, a pad 201 is installed at the position outside the cable core 11. Several telescopic sleeves 202 are evenly and equidistantly sleeved on the outside of the sheath 1. Wear-resistant sleeves 203 are installed at both ends of the telescopic sleeves 202. Several hollow ribs 204 are installed at equal angles along the circumferential direction on the outer wall of the wear-resistant sleeves 203. Ribs 205 are slidably installed inside the hollow ribs 204. Rolling balls 206 are embedded on both sides of the side end face of the ribs 205. A guide hole 208 is opened in the middle of the side end face of the ribs 205.

[0049] The outer wall of the rib 205 has a side groove 207, and the outer wall of the sheath 1 has a rail groove 209 corresponding to the position of the rib 205. The hollow rib 204 is filled with nitrogen at the position inside the side groove 207. The inner sides of the telescopic sleeve 202 and the wear-resistant sleeve 203 at the position outside the sheath 1, as well as the inside of the pad 201, are also filled with nitrogen. The inner cavity of the hollow rib 204 is connected to the rail groove 209 through the guide hole 208. The rib 205 and the ball 206 are both fitted with the rail groove 209 to avoid the cable being subjected to direct hard friction.

[0050] Threaded arc plates 210 are installed on both sides of the outer curved surface of the sheath 1. A threaded ring 211 is installed on the outer side of the threaded arc plate 210 through threads. The guide tube 212 is connected to the rail groove 209. The threaded ring 211 is rotatably connected to the wear-resistant sleeve 203. An air valve 25 is embedded on one side of the outer curved surface of the threaded ring 211 to convert and buffer external forces and provide elastic support force.

[0051] The outer curved surface of the pad 201 is equipped with conduits 212 on both sides, and the inner curved surface of the pad 201 is equipped with several inserts 213 at equal angles along the circumference. The inner cavity of the pad 201 is divided into a locking cavity 23 and a support cavity 24, and the locking cavity 23 and the support cavity 24 are connected by inserts 213. The cable core 11 is located in the gap between the locking cavity 23 and the support cavity 24, and the locking cavity 23 is located outside the cable core 11 to provide all-round protection for the cable.

[0052] A limiting sleeve 214 is sleeved on the outer side of the cable core 11. The pad 201 has an airbag structure. Several annular grooves 20 are evenly spaced on the outer curved surface of the pad 201, and the sheath 1 fits into the pad 201. Several arc-shaped grooves 21 are opened at equal angles along the circumference on the outer curved surface of the limiting sleeve 214. A tie rod 22 is embedded in the inner wall of the pad 201 at the position corresponding to the arc-shaped groove 21, and the tie rod 22 fits into the arc-shaped groove 21 to improve the stability of the internal structure of the cable. An insulating sleeve 12 is sleeved on the outer wall of the cable core 11. A shielding sleeve 13 is embedded in the inner wall of the insulating sleeve 12. The insulating sleeve 12 is located inside the limiting sleeve 214, and the insulating sleeve 12 and the limiting sleeve 214 are integrally co-extruded to improve the insulation and shielding effect.

[0053] The protective sleeve 1 is equipped with sealing and locking mechanisms 300 at both ends;

[0054] The sealing and locking mechanism 300 includes a threaded ring 301;

[0055] Both ends of the sheath 1 are equipped with threaded rings 301. A threaded outer seat 302 is rotatably mounted on the outer side of one threaded ring 301, and a threaded inner seat 303 is rotatably mounted on the outer side of the other threaded ring 301. A sealing ring 304 is installed at the end of both the threaded outer seat 302 and the threaded inner seat 303. A sealing groove 305 is opened on the side end face of the threaded ring 211 corresponding to the position of the sealing ring 304. Threaded guide rings 306 are rotatably embedded in the inner side of the threaded outer seat 302 and the threaded inner seat 303 corresponding to the position of the threaded ring 301. The threaded outer seat 302 and the threaded inner seat 303 are respectively connected to the threaded rings 301 at both ends of the sheath 1 through the threaded guide rings 306. The threaded outer seat 302 and the threaded inner seat 303 can be connected to each other by threads. The threaded guide ring 306 fits with the threaded ring 301 to perform limit self-locking.

[0056] The threaded guide ring 306 has an arc groove 307 on one side of its outer curved surface. The bottom of the inner wall of the threaded outer seat 302 and the threaded inner seat 303 is equipped with a partition plate 308 at the position corresponding to the arc groove 307. The ends of the threaded outer seat 302 and the threaded inner seat 303 are provided with inner holes 309 at the positions corresponding to the rail groove 209. The two end faces of the threaded guide ring 306 are provided with circular grooves 310 at the positions corresponding to the inner holes 309.

[0057] A front hole 311 is provided on one end face of the threaded guide ring 306 at one end of the arc groove 307, and a rear hole 312 is provided on the other end face of the threaded guide ring 306 at the other end of the arc groove 307. A ring box 313 is installed on the inner wall of the threaded outer seat 302 and the threaded inner seat 303 at one end of the threaded guide ring 306. A sealing ring 314 is embedded in the inner side of the side end face of the ring box 313. The sealing ring 304 fits into the sealing groove 305. The outer wall of the sealing ring 314 is tangent to the bottom surface of the rail groove 209 to improve the sealing performance.

[0058] A bent hole 315 is provided on the side end of the ring box 313 at the position corresponding to the circular groove 310. The rail groove 209 is connected to the front hole 311 through the inner hole 309 and the circular groove 310. The front hole 311 and the rear hole 312 are respectively connected to the space inside the arc groove 307 located on both sides of the partition 308. The ring box 313 is connected to the rear hole 312 through the bent hole 315 and the circular groove 310. The inner cavity of the ring box 313 is connected to the inner cavity of the sealing ring 314. The sealing ring 314 is an elastic structure to further convert the heat emitted during the use of the cable and realize dynamic limiting.

[0059] The working principle and usage process of this invention: When using this high-durability and wear-resistant new energy power cable for power transmission, firstly, based on actual needs, namely the actual power transmission load requirements and the required cable length, the size and quantity of the cable are selected and determined. The selected cables are then connected end to end in sequence. During the connection process, the threaded outer seat 302 and threaded inner seat 303 on adjacent cables are connected in sequence to protect the connection. After completing the corresponding wiring work, it can be put into normal use.

[0060] During the use of the cable, as the power transmission operation proceeds, the cable core 11 will dissipate heat accordingly. This heat will be absorbed by the nitrogen gas inside the sheath 201. With the connection of the insertion tube 213, the air pressure inside the locking cavity 23 and the support cavity 24 will rise synchronously. Then, under the action of air pressure, the nitrogen gas will flow along the sheath 201 and enter the rail groove 209 through the conduit 212. Furthermore, under the action of air pressure, it will flow into the gap between the sheath 1 and the wear-resistant sleeve 203, causing the air pressure between the sheath 1 and the wear-resistant sleeve 203 to rise.

[0061] At the same time, with the guide hole 208 connected, nitrogen gas enters the inner cavity of the hollow rib 204 through the guide hole 208, and simultaneously presses the rib 205, overcoming the limiting pressure of the nitrogen gas inside the side groove 207 on the rib 205, so that the rib 205 slides along the hollow rib 204 and slides out of the hollow rib 204, and the ball 206 abuts against the rail groove 209 under the push of the rib 205. In addition, the airflow support between the sheath 1 and the wear-resistant sleeve 203 can give the wear-resistant sleeve 203 a stable elastic support force, making the wear-resistant sleeve 203 fuller and more elastic.

[0062] Similarly, under the flow-limiting and guiding effect of the rail groove 209, nitrogen gas will pass through the inner hole 309 and enter the circular groove 310 under the action of air pressure, and enter the arc groove 307 through the front hole 311. This causes the threaded guide ring 306 to deflect in the tightening direction under the action of air pressure. Furthermore, it will cause the sealing ring 304 to be stuck into the sealing groove 305 with greater force. At the same time, with the connection of the rear hole 312, the deflection of the threaded guide ring 306 will compress the nitrogen gas located on the other side of the partition 308 inside the arc groove 307.

[0063] Correspondingly, this portion of nitrogen gas will pass through the rear hole 312 into the circular groove 310 on the other side, and under the connection of the bend 315, it will enter the ring box 313 through the bend 315. Further, it will fill the inner cavity of the sealing gas ring 314, causing the sealing gas ring 314 to expand accordingly. With the tightening movement of the threaded guide ring 306, the threaded outer seat 302 and the threaded inner seat 303 will fit against the sheath 1 with greater force. The sealing gas ring 314 will press the fitting end of the sheath 1 with greater force, and then cooperate with the sealing ring 304 and the sealing groove 305 to achieve double sealing of the gap between the sheath 1 and the wear-resistant sleeve 203, and achieve self-locking between the threaded outer seat 302 and the threaded inner seat 303 and the sheath 1.

[0064] During the aforementioned process, as the cable core 11 dissipates heat, causing the internal air pressure of the cable to rise, the sheath 201 will simultaneously squeeze the cable core 11 from both the inside and outside with greater force. At the same time, the sheath 1 will also be subjected to greater pressure from the sheath 201. While providing more stable elastic support to the sheath 1 and the wear-resistant sleeve 203, the limiting sleeve 214, the annular groove 20, the arc groove 21 and the tie rod 22 can provide all-round limiting of the cable core 11.

[0065] During the airflow process, on the one hand, heat will be transferred synchronously, which can promote heat exchange inside and outside the cable and balance the temperature in all directions during the use of the cable, realize the heat dispersion and transfer, and improve its heat resistance. On the other hand, it can balance the pressure in various places during the flow process, improve the pressure balance between various structures inside the cable, make the various structures inside the cable more balanced and compact, and at the same time provide more stable support and protection for the cable, avoiding relative misalignment and displacement of various structures inside the cable due to uneven force, and damage due to internal friction.

[0066] Similarly, during the use of the cable, when the cable is subjected to external friction, that is, when the wear-resistant sleeve 203 is subjected to external friction, it can slide relative to the sheath 1 under the action of external friction. Under the air pressure support of the gap between the sheath 1 and the wear-resistant sleeve 203, there will be no direct contact friction between the sheath 1 and the wear-resistant sleeve 203. Under the limiting action of the rail groove 209, the ball 206 will roll along the rail groove 209, further reducing the friction force given to the sheath 1 during the displacement of the wear-resistant sleeve 203.

[0067] At the same time, each telescopic sleeve 202 will also expand and contract accordingly to compensate for the displacement of the wear-resistant sleeve 203, avoid the wear-resistant sleeve 203 being subjected to direct hard friction, greatly improve the wear resistance of the wear-resistant sleeve 203, and improve its durability. Meanwhile, the nitrogen gas inside the cable will also spontaneously flow to the relatively low pressure area to balance the gas pressure at various points in the cable, giving the telescopic sleeve 202 a more stable support force. When the cable is subjected to external impact, the nitrogen gas inside the cable will also be simultaneously compressed by the external force and flow under the action of the external force, converting the external force into internal pressure, giving the cable a more stable support, and dispersing and offsetting the external force, further improving the durability of the wear-resistant sleeve 203.

[0068] As the cable is used for a long time, when the wear-resistant sleeve 203 is damaged due to external impact and wear, the cable connection can be disconnected and the threaded outer seat 302 at the end of the corresponding sheath 1 can be removed. At this time, the gap between the sheath 1 and the wear-resistant sleeve 203 is no longer blocked, and the nitrogen inside the cable will flow out along the rail groove 209. After losing the air pressure support, the rib 205 will retract into the hollow rib 204 under the action of the air pressure inside the side groove 207.

[0069] At this point, the threaded ring 211 can be rotated to disengage it from the threaded arc plate 210, and the damaged wear-resistant sleeve 203 can be removed from the outside of the sheath 1. The new wear-resistant sleeve 203 can be installed on the outside of the sheath 1. After the threaded outer seat 302 is reset, nitrogen gas is injected into the rail groove 209 through the air valve 25 to replenish the internal air pressure of the cable, thus completing the replacement of the wear-resistant sleeve 203, extending the effective service life of the cable, and effectively further improving the durability of the cable.

[0070] It should be added that during the use of the cable, the nitrogen inside the cable not only balances the heat and pressure emitted during the use of the cable, but also provides elastic support to the wear-resistant sleeve 203 to prevent the wear-resistant sleeve 203 from being subjected to hard friction. At the same time, in the event of an accidental fire in the cable, the nitrogen inside the cable will flow out quickly from the broken part of the fire point under the action of the gas pressure difference, so as to achieve rapid fire extinguishing and prevent the spread of the fault.

[0071] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A high orientation type high voltage cable for new energy, comprising a sheath, characterized in that: The sheath is internally provided with a plurality of cable cores arranged at equal angles in the circumferential direction, and an integrated protection mechanism is arranged outside the cable cores; The integrated protection mechanism comprises a protective pad; The protective pad is arranged inside the sheath at a position outside the cable cores, a plurality of telescopic sleeves are uniformly and equidistantly sleeved outside the sheath, wear-resistant sleeves are arranged at both ends of the telescopic sleeves, a plurality of hollow ribs are arranged at equal angles on the outer wall of the wear-resistant sleeves in the circumferential direction, a rib strip is slidably arranged inside the hollow ribs, rolling balls are arranged on both sides of the side end face of the rib strip, and a guide hole is formed in the middle of the side end face of the rib strip; A side groove is formed in the outer wall of the rib strip, a rail groove is formed in the outer wall of the sheath at a position corresponding to the rib strip, threaded arc plates are arranged on both sides of the outer curved surface of the sheath, threaded rings are arranged outside the threaded arc plates through threads, guide tubes are arranged on both sides of the outer curved surface of the protective pad, a plurality of insertion tubes are arranged at equal angles on the inner curved surface of the protective pad in the circumferential direction, and a limiting sleeve is sleeved outside the cable cores; Nitrogen is filled inside the hollow ribs at a position inside the side groove, nitrogen is filled inside the telescopic sleeves and the wear-resistant sleeves at a position outside the sheath and inside the protective pad, the inner cavity of the hollow rib is in communication with the rail groove through the guide hole, and the rib strip and the rolling balls are matched with the rail groove. Sealing and locking mechanisms are arranged at both ends of the sheath; The sealing and locking mechanisms comprise threaded rings; Threaded rings are arranged at both ends of the sheath, a threaded outer seat is rotatably arranged outside one of the threaded rings, a threaded inner seat is rotatably arranged outside the other threaded ring, sealing rings are arranged at the ends of the threaded outer seat and the threaded inner seat, a sealing groove is formed in the side end face of the threaded ring at a position corresponding to the sealing ring, and threaded guide rings are rotatably arranged in the threaded outer seat and the threaded inner seat at positions corresponding to the threaded rings. An arc groove is formed in one side of the outer curved surface of the threaded guide ring, a partition plate is arranged on the inner wall of the threaded outer seat and the threaded inner seat at a position corresponding to the arc groove, an inner hole is formed in the ends of the threaded outer seat and the threaded inner seat at a position corresponding to the rail groove, and a circular groove is formed in both side end faces of the threaded guide ring at a position corresponding to the inner hole. A front hole is formed in one side end face of the threaded guide ring at a position corresponding to one end of the arc groove, a rear hole is formed in the other side end face of the threaded guide ring at a position corresponding to the other end of the arc groove, ring boxes are arranged on the inner walls of the threaded outer seat and the threaded inner seat at a position corresponding to the threaded guide ring, sealing air rings are arranged inside the side end faces of the ring boxes, and a bent hole is formed in the side end face of the ring box at a position corresponding to the circular groove. The threaded outer seat and the threaded inner seat are connected with the threaded rings at both ends of the sheath through the threaded guide rings, and the threaded outer seat and the threaded inner seat can be connected with each other through threads, and the threaded guide ring is matched with the threaded ring.

2. The high orientation type high voltage cable for new energy according to claim 1, characterized in that, An insulating sleeve is sleeved on the outer wall of the cable core, a shielding sleeve is arranged inside the insulating sleeve, the insulating sleeve is inside the limiting sleeve, and the insulating sleeve and the limiting sleeve are integrally co-extruded.

3. The high orientation type high voltage cable for new energy according to claim 1, characterized in that, The protective pad is in the form of an air bag, a plurality of annular grooves are uniformly and equidistantly arranged on the outer curved surface of the protective pad, the sheath is matched with the protective pad, a plurality of arc grooves are formed in the outer curved surface of the limiting sleeve at equal angles in the circumferential direction, a rib is arranged inside the protective pad at a position corresponding to the arc groove, and the rib is matched with the arc groove.

4. The high orientation type high voltage cable for new energy according to claim 1, characterized in that, The inner cavity of the protection pad is divided into a locking protection cavity and a supporting cavity, the locking protection cavity and the supporting cavity are communicated through a pipe, the cable core is located at a gap position between the locking protection cavity and the supporting cavity, and the locking protection cavity is located outside the cable core.

5. The high orientation type high voltage cable for new energy according to claim 1, characterized in that, The conduit is communicated with the rail groove, the threaded ring is rotationally connected with the wear-resistant sleeve, and the outer curved surface of the threaded ring is embedded with a gas valve.

6. The high orientation type high voltage cable for new energy according to claim 1, characterized in that, The sealing ring is matched with the sealing groove, and the outer wall of the sealing air ring is tangent to the bottom surface of the rail groove.

7. The high orientation type high voltage cable for new energy according to claim 6, characterized in that, The rail groove is communicated with the front hole through the inner hole and the circular groove, the front hole and the rear hole are respectively communicated with the spaces on the two sides of the arc groove, the ring box is communicated with the rear hole through the bending hole and the circular groove, the inner cavity of the ring box is communicated with the inner cavity of the sealing air ring, and the sealing air ring is an elastic structure.

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