Low-density light-weight high-performance charging pile cable

Abstract

The invention discloses a low-density light-weight high-performance charging pile cable, and relates to the technical field of cables, outer protection assemblies are arranged on the outer sides of inner wires, middle supporting blocks uniformly sleeve the outer sides of middle lines, buffer rubber tubes are clamped between the adjacent middle lines, flame-retardant tubes are clamped between the adjacent buffer rubber tubes, soaking grooves are uniformly formed in the inner side of an outer insulating layer, and the outer side of the outer insulating layer is provided with a heat dissipation layer. The outer wear-resistant pipe is in direct contact and sliding with the ground, abrasion caused by direct friction between the outer insulation layer and the ground is avoided, the inner buffer pipe is of a hollow rubber pipe structure, the interior of the buffer rubber pipe is in a hollow state, and the inner buffer pipe is in a hollow state, so that the service life of the buffer rubber pipe is prolonged. And when the cable is on fire due to overheating, the generated high-temperature and high-pressure gas flows along the fracture position, enters the soaking pipe through the communication hole and is discharged from the one-way valve pipes at the two ends of the cable, so that the problem of electric leakage caused by fracture of the outer insulating layer is prevented.

Description

Technical Field

[0001] The present invention relates to the field of cable technology, and in particular to a low-density, lightweight, high-performance charging pile cable. Background Art

[0002] The power source of new energy electric vehicles is batteries. The capacity and charging time of the batteries have become key indicators for evaluating the performance of a new energy electric vehicle. At present, new energy electric vehicles are generally charged on specific charging piles. The charging piles and new energy electric vehicles are connected by connectors and charging pile cables. The charging pile cables are usually three-core or five-core, and sometimes data transmission wires are added to facilitate data transmission.

[0003] The patent with application number 202122389001.8 mentions the "DC charging pile cable", which solves the problem of small rated load of existing charging pile cables with the same cross-section. The current carrying capacity is 2.5-3 times that of cables with the same cross-section. However, charging pile cables often need to be bent, wrapped and dragged on the ground during use. The positions that are frequently bent and rubbed against the ground are prone to damage, causing leakage. In order to improve the protection and flame retardant properties, the thick protective layer will make the cable thick and difficult to bend and drag, which brings inconvenience to use. After a high-temperature fire, the internal cable is prone to rupture and leakage due to excessive air pressure, causing safety problems. Summary of the invention

[0004] The present invention provides a low-density, lightweight, high-performance charging pile cable, which can effectively solve the problem proposed in the above background technology that the charging pile cable often needs to be bent, wound and dragged on the ground during use, and the position where it is often bent and rubbed against the ground is prone to damage and causes leakage. In order to improve the protection and flame retardant performance, a thick protective layer is wrapped, which makes the cable thick and difficult to bend and drag, bringing inconvenience to use. After a high-temperature fire, the internal part is prone to rupture and leakage due to excessive air pressure, causing safety problems.

[0005] To achieve the above object, the present invention provides the following technical solution: a low-density, lightweight, high-performance charging pile cable, comprising inner conductors, outer protective components are arranged outside a plurality of the inner conductors, and the outer protective components include a center line; A center line is placed between the three inner conductors, a center support block is evenly sleeved on the outside of the center line, a buffer hose is clamped between adjacent center lines, a data line is installed inside one of the buffer hoses, a flame-retardant tube is clamped between adjacent buffer hoses, the flame-retardant tube is filled with a flame-retardant bag, the buffer hose and the flame-retardant tube are both wrapped by an isolation layer, a rupture groove is evenly opened on the outside of the isolation layer, an outer insulating layer is wrapped on the outside of the isolation layer, a heat-saturating groove is evenly opened on the inside of the outer insulating layer, a heat-saturating tube is inlaid in the heat-saturating groove, a connecting hole is opened in the middle of the heat-saturating tube near the isolation layer, and one-way valve tubes are inlaid at both ends of the outer insulating layer near the heat-saturating tube; Two adjacent edges of the outer insulating layer are inlaid with inner buffer tubes, which are filled with hollow balls. The other two adjacent edges of the outer insulating layer are inlaid with outer wear-resistant tubes, which are filled with rubber balls.

[0006] According to the above technical solution, an adsorption groove is opened in the middle of one side of the outer insulating layer, an adsorption tube is bonded to the middle of the other side of the outer insulating layer, and negative pressure grooves are evenly opened on one side of the adsorption tube.

[0007] According to the above technical solution, an arc-shaped groove is provided on the outer side of the middle support block corresponding to the inner conductor, and the inner side of the arc-shaped groove fits the outer side of the inner conductor.

[0008] According to the above technical solution, the three buffer hoses and the three flame-retardant tubes are spliced ​​into a round tube, and the outer sides of the buffer hose and the flame-retardant tubes are tightly fitted.

[0009] According to the above technical solution, the outer insulating layer is bent into a spiral shape, the cross-section of the outer insulating layer is a square with a circular hole in the middle, and a protective outer film is bonded to the outer side of the spiral outer insulating layer.

[0010] According to the above technical solution, the inner buffer tube and the outer wear-resistant tube are both spiral, the inner buffer tube is located inside the spiral outer insulation layer, the outer wear-resistant tube is located outside the spiral outer insulation layer, and the inner buffer tube and the outer wear-resistant tube have equal diameters.

[0011] According to the above technical solution, a movable protection component is sleeved on the outside of the outer insulating layer, and the movable protection component includes an outer protective ring; The outer side of the outer insulating layer is evenly sleeved with an outer protective ring, adjacent outer protective rings are bonded with folding retaining rings, the outer side of the folding retaining ring is bonded with a reflective film, the inner side of the outer protective ring is bonded with a supporting rubber ring, and the inner side of the supporting rubber ring is evenly bonded with an anti-slip card; An end cover is bonded to one side of the outer protective ring at both ends, an isolation ring is embedded in the middle of the end cover, a clamping groove is opened inside the isolation ring, a sealing ring is embedded inside the clamping groove, a sealing spring is bonded to the outside of the sealing ring inside the clamping groove, and an anti-slip film is bonded to the inside of the sealing ring.

[0012] According to the above technical solution, the cross-section of the folding retaining ring is V-shaped, and the outer protective ring and the folding retaining ring are combined into a cylindrical structure.

[0013] According to the above technical solution, the end surface of the anti-skid card is in the shape of a U-shaped card, and the inner width of the anti-skid card is equal to the outer diameter of the outer wear-resistant tube.

[0014] According to the above technical solution, the end cover is funnel-shaped, and a reflective film is bonded to the outer side of the end cover.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. An external protection component is provided, and the two ends of the cable are connected to the charging pile and the charging connector respectively. Because the cable is spiral-shaped, the cable is easier to extend and pull. In the process of dragging the cable, the outer insulation layers are away from each other, and the outer wear-resistant tube directly contacts and slides on the ground, avoiding wear caused by direct friction between the outer insulation layer and the ground; When the cable is squeezed, the overall spiral structure is easier to buffer the impact, and the internal buffer hose and the outer wear-resistant tube and inner buffer tube on the outside will deform, further providing buffer protection to improve the protection effect and prevent the inner conductor and data line from being damaged. The inner buffer tube is a hollow rubber tube structure filled with hollow balls. The inside of the buffer hose is hollow, which makes the overall density of the cable lower, reduces the overall weight of the cable, and makes it easier to pull the cable for charging operations. When the cable catches fire due to local overheating, the flame retardant bag in the flame retardant tube ruptures, and the aluminum hydroxide powder inside flows out. The aluminum hydroxide powder decomposes due to heat to produce a large amount of water vapor. The generated high-temperature and high-pressure gas flows along the rupture, enters the heat equalizing tube through the connecting hole, and is discharged from the one-way valve tubes at both ends of the cable to prevent leakage caused by rupture of the outer insulation layer. The mist sprayed from the one-way valve tube can also be used to indicate that the cable is damaged due to high temperature. The internal high temperature is discharged through the gas, which reduces the probability of combustion damage and is also convenient for prompting staff to carry out repairs and replacements, thereby improving safety while also improving convenience.

[0016] 2. A movable protection component is provided. The movable protection component is pulled to pull the cylindrical structure composed of the outer protective ring and the folding retaining ring to the bending position after the cable is stored. The two isolation rings are respectively sleeved at the two ends of the bending position to protect the outer side of the spiral cable as a whole bending position. The isolation ring in the center of the end cover has a smaller diameter and is sleeved on the outer side of the cable. The sealing spring pushes the anti-slip film of the sealing ring to squeeze the outer side of the spiral cable to fix the cylindrical structure composed of the outer protective ring and the folding retaining ring to prevent it from falling. The outer protective ring and the folding retaining ring prevent the problem of uneven wear of the cable as a whole due to friction between the bending position and the outside world; In summary, the external protective component protects the cable in terms of wear resistance, pressure resistance, flame retardancy, etc., while the movable protective component is used to protect the bent part of the cable, making the overall wear and aging of the cable more uniform, thereby extending the practical life of the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0018] In the attached picture: Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 It is a schematic diagram of the structure of the outer protection assembly of the present invention; Figure 3 The present invention Figure 2 Schematic diagram of the A region structure; Figure 4 It is a schematic diagram of the installation structure of the support block in the present invention; Figure 5 It is a schematic diagram of the installation structure of the isolation layer of the present invention; Figure 6 It is a schematic diagram of the structure of the movable protection assembly of the present invention; Figure 7 It is a schematic diagram of the installation structure of the anti-slip card of the present invention; Figure 8 The present invention Figure 7 Schematic diagram of the structure of region B; Numbers in the figure: 1, inner conductor; 2. External protection components; 201. Center line; 202. Middle support block; 203. Buffer hose; 204. Data line; 205. Flame retardant tube; 206. Flame retardant bag; 207. Isolation layer; 208. Rupture groove; 209. External insulation layer; 210. Heat absorbing groove; 211. Heat absorbing tube; 212. Connecting hole; 213. One-way valve tube; 214. Adsorption groove; 215. Adsorption tube; 216. Negative pressure groove; 217. Internal buffer tube; 218. Hollow ball; 219. External wear-resistant tube; 220. Rubber ball; 221. Protective outer film; 3. Movable protection assembly; 301. Outer protective ring; 302. Folding retaining ring; 303. Reflective film; 304. Support rubber ring; 305. Anti-skid card; 306. End cover; 307. Isolation ring; 308. Clamping groove; 309. Sealing ring; 310. Sealing spring; 311. Anti-skid film. DETAILED DESCRIPTION

[0019] The preferred embodiments of the present invention are described below in conjunction with 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.

[0020] Example: Figure 1-8 As shown, the present invention provides a low-density, light-weight, high-performance charging pile cable technical solution, including an inner conductor 1, an outer protective assembly 2 is arranged outside a plurality of inner conductors 1, and the outer protective assembly 2 includes a center line 201, a middle support block 202, a buffer hose 203, a data line 204, a flame retardant tube 205, a flame retardant bag 206, an isolation layer 207, a rupture groove 208, an outer insulating layer 209, a heat-saturating groove 210, a heat-saturating tube 211, a connecting hole 212, a one-way valve tube 213, an adsorption groove 214, an adsorption tube 215, a negative pressure groove 216, an inner buffer tube 217, a hollow ball 218, an outer wear-resistant tube 219, a rubber ball 220 and a protective outer film 221; A center line 201 is placed between the three inner conductors 1, and a middle support block 202 is evenly sleeved on the outer side of the center line 201. An arc groove is opened on the outer side of the middle support block 202 corresponding to the inner conductor 1. The inner side of the arc groove fits the outer side of the inner conductor 1, so that the inner conductor 1 is conveniently clamped to the outer side of the middle support block 202. A buffer hose 203 is clamped between adjacent center lines 201. A data line 204 is installed inside a buffer hose 203, and a buffer hose 203 is clamped between adjacent buffer hoses 203. The flame retardant tube 205 is filled with a flame retardant bag 206. The buffer rubber tube 203 and the flame retardant tube 205 are wrapped by an isolation layer 207. The three buffer rubber tubes 203 and the three flame retardant tubes 205 are spliced ​​into a round tube. The buffer rubber tube 203 and the flame retardant tube 205 are tightly fitted on the outside, so that the isolation layer 207 is wrapped on the outside of the three buffer rubber tubes 203 and the three flame retardant tubes 205. The isolation layer 207 is evenly provided with rupture grooves 208. 07 is wrapped with an outer insulating layer 209, the outer insulating layer 209 is bent into a spiral shape, the cross-section of the outer insulating layer 209 is a square with a circular hole in the middle, and a protective outer film 221 is bonded to the outer side of the spiral outer insulating layer 209 to better protect the side of the spiral outer insulating layer 209 that contacts the outside world, and a heat equalizing groove 210 is evenly opened on the inner side of the outer insulating layer 209, and a heat equalizing pipe 211 is embedded in the heat equalizing groove 210. A connecting hole 212 is opened in the middle of the heat equalizing pipe 211 close to the isolation layer 207, and a one-way valve pipe 213 is embedded at both ends of the outer insulating layer 209 near the heat equalizing pipe 211. An adsorption groove 214 is opened in the middle of one side of the outer insulating layer 209, and an adsorption pipe 215 is bonded to the middle of the other side of the outer insulating layer 209. A negative pressure groove 216 is evenly opened on one side of the adsorption pipe 215, so that when the outer insulating layer 209 is bent into a spiral shape, the sides close to each other can be adsorbed to each other for temporary fixation, thereby reducing the gap between the spirals; Two adjacent edges of the outer insulating layer 209 are inlaid with inner buffer tubes 217, and the inner buffer tubes 217 are filled with hollow balls 218. The other two adjacent edges of the outer insulating layer 209 are inlaid with outer wear-resistant tubes 219. The inner buffer tube 217 and the outer wear-resistant tube 219 are both spiral-shaped. The inner buffer tube 217 is on the inner side of the spiral outer insulating layer 209, and the outer wear-resistant tube 219 is on the outer side of the spiral outer insulating layer 209. The inner buffer tube 217 and the outer wear-resistant tube 219 have equal diameters. The inner buffer tube 217 is made of rubber, and the outer wear-resistant tube 219 is a rubber tube wrapped with a polytetrafluoroethylene film. The outer wear-resistant tube 219 is filled with rubber balls 220.

[0021] The outer side of the outer insulating layer 209 is sleeved with a movable protection component 3, which includes an outer protective ring 301, a folding retaining ring 302, a reflective film 303, a supporting rubber ring 304, an anti-slip card 305, an end cover 306, an isolation ring 307, a clamping groove 308, a sealing ring 309, a sealing spring 310 and an anti-slip film 311; An outer protective ring 301 is evenly sleeved on the outer side of the outer insulating layer 209, and a folding retaining ring 302 is bonded between adjacent outer protective rings 301. The cross section of the folding retaining ring 302 is V-shaped. The outer protective ring 301 and the folding retaining ring 302 are combined into a cylindrical structure to protect the spiral cable bending part. A reflective film 303 is bonded on the outer side of the folding retaining ring 302, and a supporting rubber ring 304 is bonded on the inner side of the outer protective ring 301. An anti-skid card 305 is evenly bonded on the inner side of the supporting rubber ring 304. The end face of the anti-skid card 305 is V-shaped, and the internal width of the anti-skid card 305 is equal to the outer diameter of the outer wear-resistant tube 219, so that the anti-skid card 305 can be clamped on the outer side of the outer wear-resistant tube 219 for temporary fixation. An end cover 306 is bonded to one side of the outer protective ring 301 at both ends. The end cover 306 is funnel-shaped. A reflective film 303 is bonded to the outer side of the end cover 306 to better protect the end cover 306 and the cables inside the end cover 306. An isolation ring 307 is embedded in the middle of the end cover 306. A clamping groove 308 is opened inside the isolation ring 307. A sealing ring 309 is embedded inside the clamping groove 308. A sealing spring 310 is bonded to the outer side of the sealing ring 309 and inside the clamping groove 308. An anti-slip film 311 is bonded to the inner side of the sealing ring 309.

[0022] The working principle and use process of the present invention are as follows: when producing cables, the center line 201 is straightened, the inner conductor 1 is clamped to the outer side of the middle support block 202, the data line 204 is inserted into the buffer rubber tube 203, and the number of the data lines 204 is increased or decreased as needed, and the buffer rubber tube 203 is bonded to the gap between the inner conductors 1, the flame retardant bag 206 is filled with aluminum hydroxide powder, and the flame retardant bag 206 is filled in the flame retardant tube 205, and the flame retardant tube 205 is bonded to the gap between adjacent buffer rubber tubes 203 for fixing, so that the buffer rubber tube 203 and the flame retardant The tube 205 is assembled into a cylindrical shape and wrapped around the outside of the inner conductor 1. Then, the cylindrical buffer hose 203 and the flame-retardant tube 205 assembly pass through a rubber extruder to wrap the isolation layer 207. The outside of the isolation layer 207 is then bonded with a heat-averaging tube 211. The connecting hole 212 of the heat-averaging tube 211 fits the isolation layer 207. Then, the outer insulating layer 209 is wrapped around the outside of the isolation layer 207 by an extruder. When the outer insulating layer 209 is not completely cooled, it is processed into a spiral shape. Then, the movable protection component 3 is sleeved on the outside of the spiral outer insulating layer 209 to complete the processing process. The two ends of the cable are respectively connected to the charging pile and the charging connector. Because the cable is spiral-shaped, the cable is easier to extend and pull. In the process of dragging the cable, the outer insulating layers 209 are away from each other, and the outer wear-resistant tube 219 directly contacts and slides with the ground, avoiding the wear caused by the direct friction between the outer insulating layer 209 and the ground. When the cable is squeezed, the overall spiral structure is easier to buffer the impact, and the internal buffer hose 203 and the outer wear-resistant tube 219 and the inner buffer tube 217 on the outside will all be deformed, and further buffer protection is performed to improve the protection effect and prevent the inner conductor 1 and the data line 204 from being damaged. The inner buffer tube 217 is a hollow rubber tube structure filled with hollow balls 218. The interior of the buffer hose 203 is hollow, which makes the overall density of the cable lower, reduces the overall weight of the cable, and makes it easier to pull the cable for charging operations; When the cable catches fire due to local overheating, the flame retardant bag 206 in the flame retardant tube 205 ruptures, and the aluminum hydroxide powder inside flows out. The aluminum hydroxide powder decomposes under heat and generates a large amount of water vapor, which makes the air pressure in the isolation layer 207 too high. The continuously increasing pressure will cause the rupture groove 208 to rupture, and the generated high-temperature and high-pressure gas will flow along the rupture, enter the heat equalizing tube 211 through the connecting hole 212, and be discharged from the one-way valve tube 213 at both ends of the cable. In this process, the temperature of the cable where the fire occurred will be reduced to prevent the combustion from proceeding. At the same time, it can also prevent the outer insulation layer 209 from rupturing and causing leakage. The mist sprayed from the one-way valve tube 213 can also be used to know that the cable is damaged due to high temperature. The internal high temperature is discharged through the gas, which reduces the probability of combustion damage and is convenient for prompting staff to carry out maintenance and replacement, thereby improving safety while also improving convenience. When the charging pile cable is in the storage state, the outer insulation layers 209 of the spiral cable are close to each other, and the adsorption tube 215 is embedded in the adsorption groove 214. It is adsorbed by the negative pressure groove 216, so that the outer insulation layers 209 are close to each other and make the structure more compact. Liquids and the like are not easy to enter the spiral cylinder of the cable. The inner buffer tubes 217 are close to each other and squeezed, and the outer wear-resistant tubes 219 are close to each other and squeezed. When the cable is stored after use, only one side of the protective outer film 221 of the outer insulation layer 209 faces outward, and the rest of the outer insulation layer 209 is on the inside. Light and liquids are not easy to contact the rest of the cable, which reduces the use of the protective structure and delays the aging of the cable. Only at the bending position, the outer insulating layers 209 are separated from each other, and the movable protection component 3 is pulled to pull the cylindrical structure composed of the outer protective ring 301 and the folding retaining ring 302 to the bending position of the cable. The two isolation rings 307 are respectively sleeved at the two ends of the bending position, and the supporting rubber ring 304 is deformed and the anti-skid card 305 is clamped on the outside of the outer wear-resistant tube 219. The folding retaining ring 302 is evenly distributed on the outside of the cable to protect the outer side of the spiral cable as a whole. The isolation ring 307 at the center of the end cover 306 has a smaller diameter and is sleeved on the outside of the cable. The sealing spring 310 pushes the anti-skid film 311 of the sealing ring 309 to squeeze the outer side of the spiral cable, and fixes the cylindrical structure composed of the outer protective ring 301 and the folding retaining ring 302 to prevent it from falling. The outer protective ring 301 and the folding retaining ring 302 prevent the problem of uneven wear of the cable as a whole due to friction between the bending position and the outside world; The outer protective component 2 protects the cable in terms of wear resistance, pressure resistance, flame retardancy, etc., while the movable protective component 3 is used to protect the bent part of the cable, making the overall wear and aging of the cable more uniform, thereby extending the practical life of the cable.

[0023] Finally, it should be noted that the above description is only a preferred example of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A low-density, lightweight, high-performance charging pile cable, comprising an inner conductor (1), characterized in that: An outer protective component (2) is arranged outside the plurality of inner conductive wires (1), and the outer protective component (2) comprises a center line (201); A center line (201) is placed between the three inner conductors (1), a center support block (202) is evenly sleeved on the outside of the center line (201), a buffer hose (203) is clamped between adjacent center lines (201), a data line (204) is installed inside one of the buffer hoses (203), a flame retardant tube (205) is clamped between adjacent buffer hoses (203), the flame retardant tube (205) is filled with a flame retardant bag (206), and the buffer hose (203) and the flame retardant tube (205) are both separated by an isolation layer ( 207), the outer side of the isolation layer (207) is uniformly provided with rupture grooves (208), the outer side of the isolation layer (207) is wrapped with an outer insulating layer (209), the inner side of the outer insulating layer (209) is uniformly provided with heat equalizing grooves (210), the inner side of the heat equalizing groove (210) is inlaid with a heat equalizing pipe (211), a connecting hole (212) is formed in the middle of one side of the heat equalizing pipe (211) close to the isolation layer (207), and one-way valve pipes (213) are inlaid at both ends of the outer insulating layer (209) close to the heat equalizing pipe (211); Two adjacent edges of the outer insulating layer (209) are inlaid with inner buffer tubes (217), the interior of the inner buffer tubes (217) is filled with hollow balls (218), and the other two adjacent edges of the outer insulating layer (209) are inlaid with outer wear-resistant tubes (219), the interior of the outer wear-resistant tubes (219) is filled with rubber balls (220).

2. A low-density, lightweight, high-performance charging pile cable according to claim 1, characterized in that: An adsorption groove (214) is provided in the middle of one side of the outer insulating layer (209), an adsorption tube (215) is bonded to the middle of the other side of the outer insulating layer (209), and negative pressure grooves (216) are evenly provided on one side of the adsorption tube (215).

3. A low-density, lightweight, high-performance charging pile cable according to claim 1, characterized in that: An arc-shaped groove is provided on the outer side of the middle support block (202) corresponding to the inner conductor (1), and the inner side of the arc-shaped groove fits the outer side of the inner conductor (1).

4. A low-density, lightweight, high-performance charging pile cable according to claim 1, characterized in that: The three buffer rubber tubes (203) and the three flame retardant tubes (205) are spliced ​​into a circular tube, and the outer sides of the buffer rubber tubes (203) and the flame retardant tubes (205) are tightly fitted.

5. A low-density, lightweight, high-performance charging pile cable according to claim 1, characterized in that: The outer insulating layer (209) is bent into a spiral shape, the cross section of the outer insulating layer (209) is a square with a circular hole in the middle, and a protective outer film (221) is bonded to the outer side of the spiral shape of the outer insulating layer (209).

6. A low-density, lightweight, high-performance charging pile cable according to claim 5, characterized in that: The inner buffer tube (217) and the outer wear-resistant tube (219) are both spiral-shaped; the inner buffer tube (217) is located inside the spiral outer insulation layer (209); the outer wear-resistant tube (219) is located outside the spiral outer insulation layer (209); and the inner buffer tube (217) and the outer wear-resistant tube (219) have the same diameter.

7. A low-density, lightweight, high-performance charging pile cable according to claim 1, characterized in that: A movable protection component (3) is sleeved on the outside of the outer insulating layer (209), and the movable protection component (3) comprises an outer protective ring (301); An outer protection ring (301) is evenly sleeved outside the outer insulation layer (209), a folding retaining ring (302) is bonded between adjacent outer protection rings (301), a reflective film (303) is bonded outside the folding retaining ring (302), a supporting rubber ring (304) is bonded inside the outer protection ring (301), and anti-slip clips (305) are evenly bonded inside the supporting rubber ring (304); On one side of the outer protection rings (301) at both ends, end caps (306) are bonded. An isolation ring (307) is inlaid in the middle of the end caps (306). A clamping groove (308) is formed inside the isolation ring (307). A sealing ring (309) is inlaid inside the clamping groove (308). Sealing springs (310) are bonded at the outer side of the sealing ring (309) inside the clamping groove (308), and an anti-slip film (311) is bonded inside the sealing ring (309).

8. A low-density, lightweight, high-performance charging pile cable according to claim 7, characterized in that: The cross section of the folding retaining ring (302) is V-shaped, and the outer protection ring (301) and the folding retaining ring (302) are combined into a cylindrical structure.

9. A low-density, lightweight, high-performance charging pile cable according to claim 7, characterized in that: The end face of the anti-slip clip (305) is U-shaped, and the inner width of the anti-slip clip (305) is equal to the outer diameter of the outer wear-resistant pipe (219).

10. A low-density, lightweight, high-performance charging pile cable according to claim 7, characterized in that: The end cap (306) is funnel-shaped, and a reflective film (303) is bonded outside the end cap (306).

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