Torsion-resistant and compression-resistant cable for charging

Abstract

The invention relates to the technical field of cables, in particular to a torsion-resistant and compression-resistant cable for charging, which comprises a conductor, a functional layer and an outer sheath, the functional layer and the outer sheath are sequentially sleeved on the outer side of the conductor, and the torsion-resistant and compression-resistant cable further comprises a buffer component, and the buffer component comprises outer supporting pieces and inner concave pieces which are arranged between the functional layer and the outer sheath and are distributed in a staggered manner. According to the invention, the outer supporting members and the inner concave members cooperate with each other to form a compression-resistant ring so as to resist external pressure, and the middle concave parts and the middle convex parts support and slide with each other, so that the tensile and torsion-resistant capabilities of the cable can be improved, and the service life of the cable can be prolonged. And meanwhile, the crevasse can be blocked by extruding the guide piece or the outer supporting piece and the inner concave piece, and the problem that an existing charging pile cable is poor in compression resistance, tensile resistance and torsion resistance is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of cables, and in particular to a torsion-resistant and compression-resistant cable for charging. Background Art

[0002] With the rapid development of the new energy vehicle industry, new energy charging piles have become popular. However, when using a new energy charging pile to charge a new energy vehicle, for the charging cable in the charging station, sometimes some users do not plug the charging head back to its original position after use and directly throw the cable on the ground, resulting in the cable possibly being directly pressed by the following charging driver's vehicle, thus causing strong extrusion between the internal layers of the cable and resulting in internal damage to the cable.

[0003] Due to the frequent use of the charging cable, the inside of the cable is always in a high-temperature state and is extremely prone to catching fire from the inside. After the cable catches fire, it is extremely easy to cause the new energy vehicle to catch fire, thus triggering safety problems, resulting in people's property losses, and even endangering people's lives.

[0004] In actual use, due to the frequent use of the charging cable, it is inevitably stretched and twisted each time it is used. For example, when parking a new energy vehicle at a relatively far position, the cable needs to be stretched to the charging port before charging can be carried out. Or when a fuel vehicle parks randomly at the charging pile position, during peak hours, the charging cable needs to be pulled to another position and then connected and charged, resulting in the cable often being stretched, so the anti-tensile effect of the cable needs to be increased. And when returning the charging head to its original position for placement, the cable may be placed in a twisted state at the original position, resulting in the cable always being in a twisted state. Maintaining this state for a long time will cause the internal distortion and even damage of the cable.

[0005] Due to the large number of people in the charging station and lack of management, when the cable has a break due to long-term double friction between new energy vehicles or fuel vehicles and the ground, the cable needs to be replaced or repaired in a timely manner. However, when inspections are neglected, dust or other impurities may easily enter the break of the cable, which may cause internal corrosion of the cable. When the external protection is insufficient, safety accidents such as fires are likely to occur. Or when the outer sheath becomes thin due to long-term friction, if a driver casually throws a cigarette butt on the cable and causes a slight fire and a break in the outer sheath, it is necessary to extinguish the fire in a timely manner. Therefore, the break needs to be dealt with in a timely manner. Summary of the Invention

[0006] The purpose of the present invention is to provide a torsion-resistant and compression-resistant cable for charging, which solves the problem of poor compression resistance, tensile resistance, and torsion resistance of the existing charging pile cables.

[0007] In order to achieve the above purpose, the present invention adopts the following technical solutions: An anti-torsion and anti-compression cable for charging, comprising a conductor, a functional layer and an outer sheath sequentially sleeved outside the conductor, and further comprising a buffer member, wherein the buffer member comprises outer braces and inner recesses which are alternately distributed between the functional layer and the outer sheath, and a plurality of guiding members are arranged between adjacent inner recesses and outer braces.

[0008] Preferably, the plurality of outer braces, the plurality of inner recesses and the plurality of guiding members together form a compression ring to achieve the functions of axial tensile resistance, radial compression resistance and anti-torsion.

[0009] Preferably, each outer brace is provided with two middle convex portions, and each outer brace is provided with two middle concave portions, and the middle convex portions and the middle concave portions cooperate with each other and are slidably connected.

[0010] Preferably, the guiding members are arranged at the gaps between the corresponding outer sheath, outer braces and inner recesses, and at the gaps between the outer wall of the functional layer, outer braces and inner recesses. When the outer sheath is damaged or burned through, the guiding members are squeezed by two adjacent middle concave portions to generate radial displacement, or the inner recesses are deformed by the squeezing of two adjacent middle convex portions to block the break position.

[0011] Preferably, the outer braces, inner recesses and guiding members are all spirally distributed.

[0012] Preferably, the outer braces and inner recesses are both filled with a heat-dissipating fire extinguishing agent that can flow.

[0013] Preferably, the outer braces and the adjacent inner recesses are communicated through a connecting pipe.

[0014] Preferably, when the outer braces or inner recesses are squeezed and deformed, the internal space thereof becomes smaller, thereby squeezing the heat-dissipating fire extinguishing agent inside to flow into the adjacent inner recesses or outer braces through the connecting pipe, and the internal pressure of the inner recesses or outer braces increases to give a reaction force to the squeezed outer braces or inner recesses, so that the compression resistance of the outer braces or inner recesses is enhanced.

[0015] Preferably, the functional layer comprises an insulating layer and a shielding layer.

[0016] Preferably, the outer braces are fixedly connected to the inner wall of the outer sheath, and the inner recesses are fixedly connected to the outer wall of the shielding layer.

[0017] Compared with the prior art, the beneficial effects of the present invention are: 1. By means of the provided outer support member and inner concave member, when one of them is squeezed, through the flow of heat-dissipating fire extinguishing agent therein, the effect of enabling the outer support member and the inner concave member to interact and provide a reaction force can be achieved, thereby providing good support for the interior of the cable, enabling the compression-resistant ring composed of the outer support member, the inner concave member and the guiding member to withstand a stronger squeezing force without damaging the interior of the cable, making the cable have a stronger compression resistance. Heat is absorbed by the outer support member and the inner concave member and transferred to the heat-dissipating fire extinguishing agent, and then the heat is transferred from the outer support member and the inner concave member to the outer sheath. The outer sheath is in direct contact with the outside world, thereby achieving a good continuous heat dissipation effect.

[0018] 2. By means of the provided outer support member and inner concave member, when one of them is squeezed, through the flow of heat-dissipating fire extinguishing agent therein, the effect of enabling the outer support member and the inner concave member to interact and provide a reaction force can be achieved, thereby providing good support for the interior of the cable, enabling the compression-resistant ring composed of the outer support member, the inner concave member and the guiding member to withstand a stronger squeezing force without damaging the interior of the cable, making the cable have a stronger compression resistance. Heat is absorbed by the outer support member and the inner concave member and transferred to the heat-dissipating fire extinguishing agent, and then the heat is transferred from the outer support member and the inner concave member to the outer sheath. The outer sheath is in direct contact with the outside world, thereby achieving a good continuous heat dissipation effect.

[0019] 3. By means of the provided outer support member and inner concave member, when there are breaks at the outer support member and the inner concave member, the outer support member and the inner concave member are preferentially used for plugging. When both the outer support member and the inner concave member are burned through or punctured, the inner concave member squeezes the guiding member so that the guiding member can fill the break position as a filling material after the outer support member is damaged, thereby plugging the break. When the inner concave member is burned through, the two middle concave parts of the inner concave member are made to contact each other to complete the plugging, preventing the continuous exposure of the break from causing continuous damage to the internal cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0021] Figure 1 It is a schematic diagram of the internal structure distribution of the present invention.

[0022] Figure 2 It is a schematic diagram of the structure of the outer support member and the inner concave member of the present invention after being squeezed and contracted.

[0023] Figure 3 It is a schematic diagram of the split parts of the outer support member and the inner concave member of the present invention.

[0024] Figure 4Schematic diagram of filling after the outer sheath of the present invention is damaged.

[0025] Figure 5 For the present invention Figure 4 Enlarged view at position A.

[0026] In the figure: 1, conductor; 2, functional layer; 21, insulating layer; 22, shielding layer; 3, outer sheath; 4, buffer component; 41, outer support; 411, middle convex part; 42, inner concave part; 421, middle concave part; 43, guiding part; 44, connecting pipe; 5, heat dissipation fire extinguishing agent. Specific embodiments

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present invention. Embodiment 1

[0028] With the rapid development of the new energy vehicle industry, new energy charging piles have become popular. However, when using a new energy charging pile to charge a new energy vehicle, in the charging cable in the charging station, sometimes some users do not plug the charging head back to its original position after use and directly throw the cable on the ground, resulting in the possibility that the vehicles of the drivers charging later may directly press on the cable, thus causing strong extrusion between the internal layers of the cable and resulting in internal damage of the cable.

[0029] During use, when the cable is squeezed by the external vehicle tire or stepped on by a person, the applied pressure will act on the outer sheath 3. Since the outer sheath 3 is generally composed of an armored layer and a protective layer inside the armored layer, generally no major damage will occur. The extrusion force will be transmitted layer by layer to the inside of the cable, causing damage to other layers inside the cable, thus resulting in internal damage.

[0030] Please refer to Figures 1 to 5The first embodiment of the present invention provides a torsion-resistant and pressure-resistant cable for charging, comprising a conductor 1 and a functional layer 2 and an outer sheath 3 sequentially sleeved on the outer side of the conductor 1, and also comprising a buffer component 4, the buffer component 4 comprising an outer support member 41 and an inner concave member 42 arranged between the functional layer 2 and the outer sheath 3 and staggered, a plurality of guide members 43 are arranged between adjacent inner concave members 42 and the outer support member 41, a plurality of outer support members 41, a plurality of inner concave members 42 and a plurality of guide members 43 together form an anti-compression ring to achieve axial tensile resistance, radial compression resistance and anti-torsion functions, each outer support member 41 is provided with two middle convex parts 411, each outer support member 41 is provided with two middle concave parts 421, the middle convex parts 411 and the middle concave parts 421 cooperate with each other and are slidably connected, the outer support member 41 and the inner concave member 42 are filled with a heat dissipation fire extinguishing agent 5 that can flow, and the outer support member 41 and the adjacent inner concave member 42 are connected by The connecting pipes 44 arranged at a certain distance are connected, and a pressure valve is arranged in the connecting pipe 44, which is not shown in the figure. This technology is existing technology and will not be described in detail here. The channel of the connecting pipe 44 can be opened only when a certain pressure is reached, so that the heat dissipation fire extinguishing agent 5 can flow through the connecting pipe 44. When the outer support member 41 or the inner concave member 42 is squeezed, it is deformed, causing its internal space to become smaller, thereby squeezing the heat dissipation fire extinguishing agent 5 inside it to flow into the adjacent inner concave member 42 or outer support member 41 through the connecting pipe 44. The internal pressure of the inner concave member 42 or the outer support member 41 increases, thereby giving a reaction force to the squeezed outer support member 41 or the inner concave member 42, so that the pressure resistance of the outer support member 41 or the inner concave member 42 is enhanced. The functional layer 2 includes an insulating layer 21 and a shielding layer 22. The outer support member 41 is fixedly connected to the inner wall of the outer sheath 3, and the inner concave member 42 is fixedly connected to the outer wall of the shielding layer 22.

[0031] During use, when the cable is squeezed by an external vehicle tire or stepped on by a person, the applied pressure will act on the outer sheath 3, and the outer sheath 3 will directly transfer the squeezing force or the stepping pressure to the outer support member 41 and the inner concave member 42. Since the outer support member 41 and the inner concave member 42 are filled with heat dissipation fire extinguishing agent 5, they can play a good buffering role. In addition, since the heat dissipation fire extinguishing agent 5 has good fluidity, a pressure valve is provided in the connecting pipe 44. Only when a certain pressure is reached can the channel of the connecting pipe 44 be opened, so that the heat dissipation fire extinguishing agent 5 can flow through the connecting pipe 44. Since the outer support member 41 is deformed after being subjected to pressure, the internal space is reduced. When the pressure valve is opened, the heat dissipation fire extinguishing agent 5 inside the outer support member 41 can be discharged into the adjacent inner concave member 42 through the connecting pipe 44.

[0032] At the same time, the convex portion 411 squeezes the concave portion 421. As the heat dissipation fire extinguishing agent 5 inside the inner concave part 42 increases, its internal pressure increases, so that the concave portion 421 on the inner concave part 42 can exert a certain intensity of reaction force on the convex portion 411, thereby enhancing the compressive resistance of the squeezed outer support member 41.

[0033] Meanwhile, since the middle concave part 421 on the concave part 42 can support the middle convex part 411, and since the shape of the outer support part 41 is set as a cross shape, the bent parts and the straight parts of the cross shape are both arc-shaped edges, preventing sharp extrusion of the insulating layer 21 and the shielding layer 22 of the functional layer 2. Thus, the pressure received by the outer support part 41 is dispersed onto the concave part 42, and the concave part 42 has a large contact area with the functional layer 2, resulting in a small pressure per unit area. Therefore, it can better disperse the extrusion force and avoid damaging the inside of the cable.

[0034] When the concave part 42 is under pressure, the concave part 42 is deformed and shrunk under the pressure, so that the heat dissipation fire extinguishing agent 5 inside the concave part 42 is discharged through the communication pipe 44 into the adjacent outer support part 41. Thus, the two ends of the concave part 42 are pressed to squeeze the middle convex part 411. Since the amount of the heat dissipation fire extinguishing agent 5 inside the outer support part 41 increases at this time, it can bear a greater pressure. Therefore, the middle convex part 411 supports the middle concave part 421 of the concave part 42, preventing the concave part 42 from strongly squeezing the inside of the cable after excessive deformation, enabling the compression resistance ring composed of the concave part 42, the outer support part 41 and the guiding part 43 to interact with each other and bear a greater intensity of extrusion without damaging the inside of the cable.

[0035] After the cable is used for a long time, a large amount of heat will be generated inside and surround the insulating layer 21 and the shielding layer 22 on the conductor 1. Since the heat dissipation effect of other layers outside the conventional cable functional layer 2 is not good, the temperature inside the cable continues to increase. When used for a long time, it is easy to cause the temperature inside the cable to be too high, thus reducing the charging efficiency.

[0036] When heat surrounds the functional layer 2, both the outer support part 41 and the concave part 42 are made of fast heat-conducting materials. The heat outside the functional layer 2 is quickly dispersed onto the heat dissipation fire extinguishing agent 5 through the outer support part 41 and the concave part 42, so that a large amount of heat is absorbed by the heat dissipation fire extinguishing agent 5, achieving the effect of quickly cooling the conductor 1. At the same time, the heat is diffused to the outer sheath 3 through the outer support part 41 and the concave part 42. Since the outer sheath 3 is in contact with the outside world, generally, a sunshade is set up at the charging station to provide a good sunshading effect, avoiding direct sunlight on the vehicle or the charging cable. The temperature under the sunshade is relatively low. It is necessary to dissipate the heat to the outer sheath 3 to achieve a good heat dissipation effect, thereby realizing the dissipation of heat and continuously cooling the inside of the cable.

[0037] With the provided outer support member 41 and inner concave member 42, when one of them is squeezed, through the flow of the heat-dissipating fire extinguishing agent 5 therein, the effect of enabling the outer support member 41 and the inner concave member 42 to interact and provide a reaction force can be achieved, thereby providing good support for the interior of the cable. The compression ring composed of the outer support member 41, the inner concave member 42, and the guiding member 43 can withstand stronger squeezing forces without damaging the interior of the cable, making the cable have stronger compression resistance. Heat is absorbed by the outer support member 41 and the inner concave member 42 and transferred to the heat-dissipating fire extinguishing agent 5, and then transferred from the outer support member 41 and the inner concave member 42 to the outer sheath 3. The outer sheath 3 is in direct contact with the outside, and generally, a sunshade is provided at the charging station to provide a good sunshading effect, preventing the vehicle or the charging cable from being directly irradiated by the sun. The temperature under the sunshade is relatively low. Therefore, after the heat is transferred to the outer sheath 3, the heat is transferred to the outside through the outer sheath 3, achieving a good continuous heat dissipation effect. Embodiment 2

[0038] On the basis of the above embodiment, although the compression resistance of the cable can be significantly enhanced, making the cable not easily damaged when being squeezed, in actual use, due to frequent use of the charging cable, it is inevitably stretched and twisted each time it is used. For example, when parking a new energy vehicle at a relatively far position, the cable needs to be stretched to the charging port before charging can be carried out. Or when a fuel vehicle parks randomly at the charging pile position, during peak hours, the charging cable needs to be pulled to another position and then connected and charged, resulting in the cable being often stretched. Therefore, the tensile effect of the cable needs to be increased. And when the charging head is returned to the original position for placement, it may occur that the cable is placed in a twisted state at the original position, resulting in the cable being in a twisted state all the time. Maintaining this state for a long time will cause the interior of the cable to be distorted or even damaged.

[0039] To solve the above technical problems, on the basis of the above-mentioned first embodiment, with reference to Figures 1 to 5 as shown, the technical solution adopted includes a guiding member 43. The guiding member 43 is arranged at the gaps between the corresponding outer sheath 3, the outer support member 41, and the inner concave member 42, and at the gaps between the outer wall of the functional layer 2, the outer support member 41, and the inner concave member 42. When the outer sheath 3 is damaged or burned through, the guiding member 43 generates a radial displacement under the extrusion of two adjacent middle concave portions 421, or the inner concave member 42 is deformed under the extrusion of two adjacent middle convex portions 411 to block the break position. The outer support member 41, the inner concave member 42, and the guiding member 43 are all spirally distributed.

[0040] Since the outer support member 41, the concave member 42 and the guiding member 43 jointly form a compression ring, when the cable is subjected to tensile force, the outer support member 41 and the concave member 42 are compressed to resist part of the tensile force. When the tensile force is large, since both the outer support member 41 and the concave member 42 are helically arranged, and since the outer support member 41 and the concave member 42 are slidably connected, and the outer support member 41 is fixedly connected to the inner wall of the outer sheath 3, and the concave member 42 is fixedly connected to the outer wall of the shielding layer 22, the guiding member 43 can play a good guiding and inductive role, so that the outer support member 41 and the concave member 42 are inducted into the corresponding activity range. When the tensile force is strong, the outer support member 41 and the concave member 42 slide relative to each other, thereby further resisting the tensile force.

[0041] When the cable is twisted, since the outer support member 41 and the concave member 42 are helically arranged, when the direction of the twisting force is the same as the helical direction of the outer support member 41 and the concave member 42, the helical outer support member 41 and the concave member 42 can resist part of the twisting force by contraction. Since the outer support member 41 and the concave member 42 are slidably connected, and the outer support member 41 is fixedly connected to the inner wall of the outer sheath 3, and the concave member 42 is fixedly connected to the outer wall of the shielding layer 22, when the twisting force is large, the outer support member 41 and the outer sheath 3 slide relative to the concave member 42 and the shielding layer 22, canceling the twisting force in the same direction as the helical direction of the outer support member 41 and the concave member 42, and preventing the twisting force from directly acting on the functional layer 2 and the conductor 1 inside the cable, causing damage to the cable.

[0042] When the direction of the twisting force is opposite to the helical direction of the outer support member 41 and the concave member 42, the concave member 42 and the outer support member 41 begin to bulge to resist the twisting of the twisting force. When the twisting force is large, the concave member 42 and the outer support member 41 continue to squeeze and deform each other and make the concave member 42 and the outer support member 41 slide in the opposite direction to the above-mentioned twisting force, that is, in the opposite direction to the sliding direction when the twisting force is in the same direction as the helical direction, thereby resisting the damage of the twisting force to the cable. And when the concave member 42 and the outer support member 41 bulge, they can squeeze and support each other through the middle concave part 421 and the middle convex part 411, so that the twisting force received inside the conductor 1 is greatly reduced.

[0043] By helically arranging the concave member 42 and the outer support member 41, when the cable is subjected to tensile force, most of the tensile force is canceled by the contraction and flattening and mutual sliding of the concave member 42 and the outer support member 41. Otherwise, the conductor 1 and the functional layer 2 inside the cable are directly stretched and damaged. When the cable is subjected to twisting forces in different directions, through the deformation, contraction, flattening, bulging and mutual sliding of the concave member 42 and the outer support member 41, and since the concave member 42 and the outer support member 41 can support each other relatively, and the pressure of the concave member 42 on the functional layer 2 is small, it can prevent the large-range deformation and damage of the functional layer 2 and the conductor 1 during twisting, thereby protecting the inside of the cable when the cable is twisted. Embodiment 3

[0044] Due to the large number of people in the charging station and lack of management, when the cable has a break due to the long-term double friction of new energy vehicles or fuel vehicles with the ground, the cable needs to be replaced or repaired in a timely manner. However, when inspections are neglected, dust or other impurities are likely to enter the break of the cable, which may lead to internal corrosion of the cable. When the external protection is insufficient, safety accidents such as fires are likely to occur. Or when the outer sheath 3 becomes thin after long-term friction, if a driver casually throws a cigarette butt onto the cable, causing a fire and a break at a specific position of the outer sheath 3, it is necessary to extinguish the fire in a timely manner. Therefore, the break needs to be dealt with in a timely manner.

[0045] Based on the above-mentioned first embodiment and second embodiment, in order to solve the above technical problems, referring to Figures 1 to 5 It can be obtained that the technical solution adopted includes the outer sheath 3. When the outer sheath 3 is damaged or burned through, the guide member 43 is radially displaced due to the extrusion of two adjacent middle concave portions 421, or the inner concave member 42 is deformed due to the extrusion of two adjacent middle convex portions 411 to block the break position.

[0046] When the cable has a break, when it occurs at the part of the outer sheath 3 corresponding to the outer support member 41, the outer sheath 3 has a break. At this time, the outer support member 41 can directly abut against the break to block it. When a slight break occurs at the position corresponding to the inner concave member 42, the inner concave member 42 can also directly block the break. Both the inner concave member 42 and the outer support member 41 are of a color different from that of the outer sheath 3, which is convenient for observing damage.

[0047] When the outer sheath 3 becomes thin due to friction and a cigarette butt causes the outer protective layer to catch fire and burn through both the outer sheath 3 and the outer support member 41 at the same time, the heat-dissipating fire extinguishing agent 5 inside the outer support member 41 sprays out from the break. It can not only absorb a large amount of heat generated by the fire but also extinguish the fire. At the same time, the pressure inside the outer support member 41 becomes smaller, causing both ends of the inner concave member 42 to squeeze the guide member 43, so that the guide member 43 is squeezed towards the break, thereby allowing the sprayed heat-dissipating fire extinguishing agent 5 to absorb heat and extinguish the fire. At the same time, the guide member 43 blocks the break to avoid contamination. The guide member 43 is made of a flame-retardant material.

[0048] When a break occurs at the position corresponding to the inner concave member 42, and at the same time a break occurs at the same position on the inner concave member 42, the heat-dissipating fire extinguishing agent 5 inside the inner concave member 42 sprays out. At the same time, the outer support member 41 is squeezed and shrunk and flattened, squeezing the middle concave portion 421 of the inner concave member 42 to continuously contract until they come into contact and are tightly squeezed to block the inside. Since the communication pipe 44 is always in a connected state, a pressure valve channel can be set in the communication pipe 44, and it can only reach the communication pipe 44 when a certain pressure is reached, so as to realize the effectiveness of the connection between the outer support member 41 and the inner concave member 42, and prevent the heat-dissipating fire extinguishing agent 5 from continuously spraying out or flowing continuously when slightly touched and squeezed or when a break ejects the heat-dissipating fire extinguishing agent 5, resulting in unnecessary loss of the heat-dissipating fire extinguishing agent 5 inside the cable.

[0049] With the provided outer support member 41 and inner concave member 42, when there are breaks at the outer support member 41 and the inner concave member 42, the outer support member 41 and the inner concave member 42 are preferentially used for plugging. When both the outer support member 41 and the inner concave member 42 are burned through or punctured, the inner concave member 42 squeezes the guiding member 43, so that the guiding member 43 can be filled at the break position as a filling material after the outer support member 41 is damaged, thereby plugging the break. When the inner concave member 42 is burned through, the two middle concave portions 421 of the inner concave member 42 are brought into contact with each other to complete the plugging, preventing continuous damage to the internal cable caused by continuous exposure of the break.

[0050] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A torsion-resistant and compression-resistant cable for charging, comprising a conductor and a functional layer and an outer sheath sequentially sleeved outside the conductor, characterized in that, It further includes a buffer component, and the buffer component includes outer braces and inner recesses which are arranged in an alternating manner between the functional layer and the outer sheath, and a plurality of guiding members are arranged between adjacent inner recesses and outer braces.

2. The anti-torsion and anti-compression cable for charging according to claim 1, wherein The plurality of outer braces, the plurality of inner recesses and the plurality of guiding members together form a compression ring to achieve the functions of axial tensile resistance, radial compression resistance and anti-torsion.

3. The anti-torsion and anti-compression cable for charging according to claim 2, wherein, Each outer brace is provided with two middle convex portions, and each outer brace is provided with two middle concave portions, and the middle convex portions and the middle concave portions cooperate with each other and are slidably connected.

4. The anti-twist and anti-compression cable for charging according to claim 3, wherein, The guiding members are arranged at the gaps between the corresponding outer sheath, outer braces and inner recesses, and at the gaps between the outer wall of the functional layer, outer braces and inner recesses. When the outer sheath is damaged or burned through, the guiding members are squeezed by two adjacent middle concave portions to generate a radial displacement, or the inner recesses are deformed by the squeezing of two adjacent middle convex portions to block the break position.

5. The anti-torsion and anti-compression cable for charging according to claim 4, characterized in that, The outer braces, inner recesses and guiding members are all spirally distributed.

6. The anti-torsion and anti-compression cable for charging according to claim 5, wherein, The outer braces and inner recesses are both filled with a heat-dissipating fire extinguishing agent that can flow.

7. The anti-torsion and anti-compression cable for charging according to claim 6, characterized in that, The outer braces are communicated with adjacent inner recesses through connecting pipes.

8. The anti-torsion and anti-compression cable for charging according to claim 7, wherein, When the outer braces or inner recesses are deformed by extrusion, the internal space thereof becomes smaller, thereby squeezing the heat-dissipating fire extinguishing agent inside to flow into the adjacent inner recesses or outer braces through the connecting pipes, and the internal pressure of the inner recesses or outer braces increases to give a reaction force to the extruded outer braces or inner recesses, so that the compression resistance of the outer braces or inner recesses is enhanced.

9. The anti-torsion and anti-compression cable for charging according to claim 8, characterized in that, The functional layer includes an insulating layer and a shielding layer.

10. A torsion-resistant and compression-resistant cable for charging according to claim 9, characterized in that, The outer braces are fixedly connected to the inner wall of the outer sheath, and the inner recesses are fixedly connected to the outer wall of the shielding layer.

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