Low-temperature-resistant new energy vehicle charging cable

Abstract

The invention discloses a low-temperature-resistant new energy vehicle charging cable, and relates to the technical field of new energy, the low-temperature-resistant new energy vehicle charging cable comprises an inner wire, a temperature increasing mechanism and a protection mechanism, the temperature increasing mechanism is arranged on the outer side of the inner wire, and the protection mechanism is arranged on the outer side of the temperature increasing mechanism. The temperature increasing mechanism comprises a motor device, a travelling wheel and a heating ring, the motor device drives the travelling wheel to rotate, so that the travelling wheel can drive the heating ring to move at each position in the cable, the protection mechanism comprises a threaded wire and an anti-rolling layer, and the overall resistance of the cable can be increased through the shape of the threaded wire; the cable temperature is raised, multi-angle bending can be achieved, the rubber partition plates can guarantee stable dissipation of hot air, free bending of the supporting frame is not affected, and therefore the situations that wires in the cable are prone to being broken due to low temperature, short circuit risks are caused, and the maintenance cost is increased are avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of new energy, and particularly to a charging cable for new energy vehicles with low temperature resistance. Background Art

[0002] A cable is a linear or strip-shaped electrical device used to transmit electrical energy, electrical signals or optical signals. It usually consists of a conductor made of a metal such as copper or aluminum with good electrical conductivity, an insulating layer for isolation, and a protective layer for protection. It can be classified into power, control, communication, signal cables, etc. according to its use, or can be classified into different types such as low voltage and medium voltage according to the voltage level.

[0003] In the field of new energy vehicles, in order to conveniently charge new energy vehicles, a special charging cable for new energy vehicles is required. However, in some extreme environments where the temperature is extremely low, ordinary charging cables for new energy vehicles are prone to many faults. Therefore, a charging cable for new energy vehicles with low temperature resistance is needed.

[0004] However, the existing charging cable for new energy vehicles with low temperature resistance has the following deficiencies: At present, a charging cable for new energy vehicles with low temperature resistance on the market all adopts a thickened outer skin method to reduce the heat transfer between the internal wire part of the cable and the outside world. The heat generated during the operation of the cable can be preserved for a long time, so as to ensure the stable transportation of the cable. However, when the charging cable is not used for a long time, the internal temperature of the cable is still too low, making the wire prone to break due to low temperature, causing a short-circuit risk and increasing the maintenance cost. Therefore, we propose a pre-treatment magnesium oxide filtration device to solve the problems raised above. Summary of the Invention

[0005] The object of the present invention is to provide a charging cable for new energy vehicles with low temperature resistance. The starting motor device drives the first gear to rotate, the first gear drives the two meshing second gears to rotate, and at the same time, the third gear below the second gear rotates synchronously and drives the two meshing fourth gears to rotate. There is a rope between the four traveling wheels, and the fixing frame fixes the fan in the casing. Among them, a fifth gear is fixed at the bottom of one traveling wheel, and through the meshing between the fifth gear and the sixth gear, the fan is driven to rotate. The heat preservation shell is made of rubber material, and the internal support frame is divided into multiple parts, which are connected to each other through the rotating grooves and rotating telescopic rods opened, and with the help of the telescopic property of the rotating telescopic itself, rubber partitions are arranged between the multiple support frames.

[0006] To achieve the above object, the present invention provides the following technical solution: A low-temperature resistant charging cable for new energy vehicles, comprising an inner conductor, a temperature increasing mechanism and a protection mechanism, wherein the temperature increasing mechanism is arranged outside the inner conductor, and the protection mechanism is arranged outside the temperature increasing mechanism; The temperature increasing mechanism includes a motor device, a traveling wheel and a heating coil. The motor device drives the traveling wheel to rotate, so that the traveling wheel can drive the heating coil to move to various positions inside the cable; The protection mechanism includes a threaded wire and an anti-rolling layer. The shape of the threaded wire itself can increase the overall resistance of the cable, so that the temperature of the cable can be increased. And when the inner conductor accidentally breaks, the threaded wire can perform temporary emergency power transportation work. The anti-rolling layer can reduce the situation that the inner wires of the cable are twisted and broken.

[0007] Preferably, the temperature increasing mechanism further includes a heat preservation shell. A plurality of support frames are fixedly connected to the inner side of the heat preservation shell. Rotation grooves are opened on the outer sides of the plurality of support frames. Rotating telescopic rods are rotatably connected to the inner sides of the plurality of rotation grooves. The other ends of the plurality of rotating telescopic rods are rotatably connected to another group of support frames. Fixed grooves are also opened on the outer sides of the support frames. Rubber partitions are arranged inside the fixed grooves. Limiting strips are fixedly connected to both the left and right sides of the rubber partitions. A connecting rod is fixedly connected to the other side of the rubber partition. A connecting groove is opened on the remaining side of the rubber partition. The connecting rod is rotatably connected to the connecting groove.

[0008] Preferably, a limiting frame is fixedly connected to the inside of the support frame. A rope is fixedly connected to the inside of the limiting frame. A machine shell is arranged at the top of the rope. The machine shell is fixedly connected to the motor device. A plurality of heat dissipation holes are opened on the outer side of the machine shell.

[0009] Preferably, a first gear is fixedly connected to the bottom output end of the motor device. A plurality of rotating rods are rotatably connected to the inner side of the bottom of the motor device. Third gears are fixedly connected to the outer sides of one side of the rotating rods. Second gears are fixedly connected to the tops of the third gears. Fourth gears are fixedly connected to the outer sides of the other side of the rotating rods. The bottoms of the plurality of third gears are fixedly connected to the traveling wheels. A plurality of anti-slip strips are fixedly connected to the outer sides of the traveling wheels. A fifth gear is fixedly connected to the bottom of one side of the traveling wheels. A clamping frame is rotatably connected to the tops of the plurality of traveling wheels. The traveling wheels are arranged outside the rope.

[0010] Preferably, the first gear meshes with the second gear. The plurality of third gears respectively mesh with the corresponding plurality of fourth gears. A sixth gear is arranged outside the fifth gear. The bottom of the sixth gear is rotatably connected to a fixed frame.

[0011] Preferably, both sides of the fixing frame are fixedly connected to the inner side of the casing. The bottom of the side of the fixing frame is fixedly connected to the heating coil. A fan is arranged at the bottom of the fixing frame. The fan penetrates through the fixing frame and is fixedly connected to the sixth gear. The fan is rotatably connected to the fixing frame.

[0012] Preferably, the protection mechanism further includes a casting skin. The casting skin is arranged on the outer side of the threaded wire. The threaded wire is sleeved on the outer side of the inner wire. A heat insulation layer is sleeved on the outer side of the casting skin. A fastening layer is sleeved on the outer side of the heat insulation layer. A steel wire reinforcement mesh is fixedly connected inside the fastening layer.

[0013] Preferably, an inner insulation layer is sleeved on the outer side of the fastening layer. An insulation layer is sleeved on the outer side of the inner insulation layer. The outer side of the insulation layer is fixedly connected to the anti-rolling layer.

[0014] Preferably, an outer skin layer is sleeved on the outer side of the anti-rolling layer. A plurality of anti-slip blocks are fixedly connected to the outer side of the outer skin layer. A plurality of anti-rolling grooves are formed in the inner side of the outer skin layer. The anti-rolling grooves are engaged with the anti-rolling layer.

[0015] Preferably, the traveling wheel is a concave wheel. The vertical cutting radius of its concave surface is slightly larger than the vertical cutting radius of the rope. The anti-slip strip has the same shape as the curved surface of the traveling wheel.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. When the temperature is low enough, the motor drives the first gear to rotate. Through gear transmission, the four traveling wheels move on the rope. The casing keeps the top facing up due to its heavier bottom. The clamping frame and the anti-slip strip prevent the traveling wheels from slipping. The traveling wheels drive the fan to rotate, conveying the heat of the heating coil into the casing and then dissipating it through the heat dissipation holes. The heat of multiple casings converges and enters the heat preservation shell through the pore channels of the support frame to raise the temperature, ensuring the normal operation of the cable at low temperature. The heat preservation shell is made of rubber. A plurality of support frames inside it are connected to the rotating telescopic rods through the rotating grooves and can be bent at multiple angles. The rubber partition plate there can not only ensure the stable dissipation of hot air but also does not affect the free bending of the support frame, thus avoiding the situation that the internal wires of the cable become easily broken due to low temperature, causing short-circuit risks and increasing maintenance costs.

[0017] 2. When the temperature inside the cable of the present invention is moderate, in order to ensure the stable operation of the temperature increase mechanism and avoid the rupture of the outer layer of the cable, anti-slip blocks are regularly laid on the surface of the outer skin, which can reduce the friction between the outer skin and the ground during violent dragging and extend its service life. The anti-rolling grooves opened on the inner side of the outer skin are engaged with the anti-rolling layer to prevent the internal wires from rotating and twisting when the cable moves at multiple angles, further improving the durability of the cable. In addition, due to its own shape, the resistance of the spiral threaded wire inside it slightly increases, and the heat generated thereby is retained by the heat insulation layer, making the temperature inside the cable higher than the outside when the cable is idle. This not only facilitates charging work at any time but also avoids the fracture of the wire due to low-temperature brittleness during storage. The fastening layer compresses the heat insulation layer to enhance the heat insulation effect, and the steel wire reinforcement net therein can also increase the overall tensile strength of the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a three-dimensional front view structure diagram of a low-temperature-resistant new energy vehicle charging cable of the present invention; Figure 2 is a front view of a low-temperature-resistant new energy vehicle charging cable of the present invention; Figure 3 is a split three-dimensional diagram of the temperature increase mechanism in a low-temperature-resistant new energy vehicle charging cable of the present invention; Figure 4 is Figure 3 an enlarged view of part A in Figure 5 is a partial structure split three-dimensional diagram of the temperature increase mechanism in a low-temperature-resistant new energy vehicle charging cable of the present invention; Figure 6 is a split three-dimensional diagram of the protection mechanism in a low-temperature-resistant new energy vehicle charging cable of the present invention; Figure 7 is Figure 6 an enlarged view of part B in Figure 8 is Figure 2 an enlarged view of part C in Figure 9 is Figure 3 an enlarged view of part D in Figure 10 is Figure 5 an enlarged view of part E in

[0019] In the figure: 1. Inner conductor; 2. Temperature increasing mechanism; 201. Heat preservation shell; 202. Support frame; 203. Rotating groove; 204. Rotating telescopic rod; 205. Fixed groove; 206. Limiting strip; 207. Connecting rod; 208. Connecting groove; 209. Machine shell; 210. Motor device; 211. First gear; 212. Second gear; 213. Third gear; 214. Fourth gear; 215. Traveling wheel; 216. Anti-slip strip; 217. Fifth gear; 218. Sixth gear; 219. Fixed frame; 220. Heating coil; 221. Fan; 222. Rubber partition; 223. Limiting frame; 224. Rope; 225. Rotating rod; 226. Clamping frame; 3. Protection mechanism; 301. Steel wire reinforcement net; 302. Threaded conductor; 303. Casting skin; 304. Heat insulation layer; 305. Fastening layer; 306. Insulation layer; 307. Outer skin; 308. Anti-rolling layer; 309. Anti-sliding block; 5. Inner insulation layer. Detailed implementation manner

[0020] 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 of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0021] According to the overall content, in a charging cable for a new energy vehicle resistant to low temperature, although the prior art can insulate the cable. However, in actual use, since the prior art all uses the method of thickening the outer skin to reduce the heat transfer between the inner conductor part of the cable and the outside, the heat generated during the operation of the cable can be preserved for a long time, so as to ensure the stable transportation of the cable. However, when the charging cable is not used for a long time, the internal temperature of the cable is still too low, which will still make the conductor easy to break due to low temperature, causing a short circuit risk and increasing the maintenance cost. The present invention is completed to solve the problems of the prior art. The motor device 210 drives the traveling wheel 215 to rotate, so that the traveling wheel 215 can drive the heating coil 220 to move to various positions inside the cable, and cooperate with the fan 221 at the bottom of the heating coil 220 to blow the hot air heated by the heating coil 220 into the machine shell 209, and after converging inside the machine shell 209, it dissipates to the surroundings from the ventilation holes on the outside of the machine shell 209 to increase the temperature of each part of the cable to resist the negative effects of low temperature on the cable; During the whole process, in the cooperation protection mechanism 3, the self-shape of the threaded wire 302 can slightly increase the overall resistance of the cable, so that the temperature of the cable can be slightly increased. And when the inner wire 1 accidentally breaks, the threaded wire 302 can perform temporary emergency power transportation work, and the anti-rolling layer 308 can reduce the situation that the internal wires of the cable are twisted and broken, so as to further ensure the operation of the temperature increasing mechanism 2; In the embodiment of the present invention, according to Figures 2 - 5 and Figures 8 - 10As shown in the figure, a low-temperature-resistant charging cable for new energy vehicles includes an inner conductor 1, a temperature-increasing mechanism 2, and a protection mechanism 3. The temperature-increasing mechanism 2 is arranged outside the inner conductor 1, and the protection mechanism 3 is arranged outside the temperature-increasing mechanism 2. The temperature-increasing mechanism 2 includes a motor device 210, traveling wheels 215, and a heating coil 220. The motor device 210 drives the traveling wheels 215 to rotate, so that the traveling wheels 215 can drive the heating coil 220 to move to various positions inside the cable. The protection mechanism 3 includes a threaded wire 302 and an anti-rolling layer 308. The shape of the threaded wire 302 can increase the overall resistance of the cable, so that the temperature of the cable can be increased. And when the inner conductor 1 accidentally breaks, the threaded wire 302 can perform temporary emergency power transmission work. The anti-rolling layer 308 can reduce the situation that the wires inside the cable are twisted and broken. The temperature-increasing mechanism 2 further includes a heat preservation shell 201. A plurality of support frames 202 are fixedly connected to the inner side of the heat preservation shell 201. Rotating grooves 203 are opened on the outer sides of the plurality of support frames 202. Rotating telescopic rods 204 are rotatably connected to the inner sides of the plurality of rotating grooves 203. The other ends of the plurality of rotating telescopic rods 204 are rotatably connected to another group of support frames 202. Fixing grooves 205 are also opened on the outer sides of the support frames 202. A rubber partition 222 is arranged inside the fixing grooves 205. Limiting strips 206 are fixedly connected to both the left and right sides of the rubber partition 222. A connecting rod 207 is fixedly connected to the other side of the rubber partition 222. A connecting groove 208 is opened on the remaining side of the rubber partition 222. The connecting rod 207 is rotatably connected to the connecting groove 208. A limiting frame 223 is fixedly connected to the inside of the support frame 202. A rope 224 is fixedly connected to the inside of the limiting frame 223. A machine shell 209 is arranged at the top of the rope 224. The machine shell 209 is fixedly connected to the motor device 210. A plurality of heat dissipation holes are opened on the outer side of the machine shell 209. The bottom output end of the motor device 210 is fixedly connected to a first gear 211. A plurality of rotating rods 225 are rotatably connected to the inner bottom of the motor device 210. Third gears 213 are fixedly connected to the outer sides of one side of the rotating rods 225. Second gears 212 are fixedly connected to the tops of the third gears 213. Fourth gears 214 are fixedly connected to the outer sides of the other side of the rotating rods 225. The bottoms of the plurality of third gears 213 are all fixedly connected to the traveling wheels 215. A plurality of anti-slip strips 216 are fixedly connected to the outer sides of the traveling wheels 215. A fifth gear 217 is fixedly connected to the bottom of one side of the traveling wheels 215. A clamping frame 226 is rotatably connected to the tops of the plurality of traveling wheels 215. The traveling wheels 215 are arranged outside the rope 224. The first gear 211 is meshed with the second gear 212. The plurality of third gears 213 are respectively meshed with the corresponding plurality of fourth gears 214. A sixth gear 218 is arranged outside the fifth gear 217. The bottom of the sixth gear 218 is rotatably connected to a fixing frame 219. The two sides of the fixing frame 219 are fixedly connected to the inside of the machine shell 209. The bottom of the fixing frame 219 is fixedly connected to the heating coil 220. A fan 221 is arranged at the bottom of the fixing frame 219.The fan 221 penetrates through the fixing frame 219 and is fixedly connected to the sixth gear 218. The fan 221 is rotatably connected to the fixing frame 219. The effects achieved by the entire embodiment are as follows: When the temperature is low enough, the motor device 210 is started to drive the first gear 211 to rotate. The first gear 211 drives the two second gears 212 meshing with it to rotate. At this time, the two second gears 212 rotate in the same direction. At the same time, the third gear 213 below the second gear 212 rotates synchronously and drives the two fourth gears 214 meshing with it to rotate. Due to the gear principle, the rotation directions of the two fourth gears 214 are opposite to the rotation directions of the two third gears 213. Therefore, the traveling wheels 215 on the third gear 213 and the traveling wheels 215 on the fourth gear 214 rotate in opposite directions. A rope 224 is provided between the four traveling wheels 215. Therefore, the four traveling wheels 215 can move on the rope 224. The weight of the bottom of the housing 209 is greater than that of the top, so that the four traveling wheels 215 can always maintain the state with the top facing upward due to the gravity principle. The clamping frame 226 enables the four traveling wheels 215 to always lightly clamp the rope 224 while rotating, ensuring that there is always a mutual friction state between the traveling wheels 215 and the rope 224, preventing the traveling wheels 215 from slipping and affecting the traveling work. The anti-slip strips 216 of the traveling wheels 215 can increase the friction between the traveling wheels 215 and the rope 224, further ensuring the movement of the traveling wheels 215. Multiple gears rotate with the housing 209 through the rotating rod 225, enabling the multiple gears to rotate stably and drive the housing 209 to move synchronously. The fixing frame 219 fixes the fan 221 in the housing 209. Among them, a fifth gear is fixed at the bottom of one traveling wheel 215. Through the meshing between the fifth gear 217 and the sixth gear 218, the fan 221 is driven to rotate, driving the heat generated by the heating coil 220 to flow upward into the housing 209 and converging in the housing 209 and then dissipating to the surroundings from the heat dissipation holes around the housing 209 due to the atmospheric pressure. When the heat dissipated by multiple housings 209 intersects with each other, the heat will dissipate from the multiple channels inside the support frame 202 to the inside of the heat preservation shell 201 until the temperature inside the heat preservation shell 201 rises to an appropriate temperature. Therefore, by raising the temperature inside the cable, the cable can still ensure normal operation in a low-temperature environment. In order for the temperature-raising mechanism 2 not to affect the collection and use of the cable, the heat preservation shell 201 is made of rubber material, and the internal support frame 202 is divided into multiple parts, which are connected to each other through the rotating grooves 203 and the rotating telescopic rods 204 opened. With the telescopic property of the rotating telescopic itself, the multiple support frames 202 can be freely bent at multiple angles. In order for the hot air inside the heat preservation shell 201 to stably dissipate from the preset channels on the support frame 202, rubber partitions 222 are provided between the multiple support frames 202. Due to the nature of the material of the rubber partitions 222 themselves, it can also ensure that the multiple support frames 202 can be freely bent at multiple angles.

[0022] In some embodiments, according to Figure 1 and Figures 5 - 7 As shown in, the protection mechanism 3 further includes a casting skin 303. The casting skin 303 is arranged outside the threaded wire 302. The threaded wire 302 is sleeved outside the inner wire 1. An insulating layer 304 is sleeved outside the casting skin 303. A fastening layer 305 is sleeved outside the insulating layer 304. A steel wire reinforcement mesh 301 is fixedly connected inside the fastening layer 305. An inner insulating layer 5 is sleeved outside the fastening layer 305. An insulating layer 306 is sleeved outside the inner insulating layer 5. The outside of the insulating layer 306 is fixedly connected to an anti-rolling layer 308. An outer skin 307 is sleeved outside the anti-rolling layer 308. A plurality of anti-slip blocks 309 are fixedly connected to the outside of the outer skin 307. A plurality of anti-rolling grooves are formed inside the outer skin 307. The anti-rolling grooves are engaged with the anti-rolling layer 308. The traveling wheel 215 is a concave wheel, and the vertical cutting radius of its concave surface is slightly larger than the vertical cutting radius of the rope 224. The anti-slip strip 216 has the same curved surface shape as the traveling wheel 215.

[0023] The effect achieved by the entire embodiment is as follows: While the temperature inside the cable is moderate, in order to ensure the stable implementation of the temperature increasing mechanism 2 and avoid the external rupture of the cable affecting the stability and tightness of the cable, by laying a layer of anti-slip blocks 309 on the outer skin 307. Since the highest point of the anti-slip blocks 309 is higher than the outer skin 307, during the violent dragging and use by some people, the friction between the outer skin 307 and the ground is reduced, increasing the service life of the outer skin 307. On this basis, the engagement between the anti-rolling grooves formed inside the outer skin 307 and the anti-rolling layer 308 prevents the internal wires from rotating and twisting inside the outer skin 307 when the cable is frequently moved at multiple angles during use, further increasing the service life outside the cable. At the same time, in order to reduce the burden on the temperature increasing mechanism 2, during the actual operation of this charging cable, due to the spiral threaded wire 302 slightly increasing the resistance during power transportation and generating heat, this heat exists between the inner wire 1, the threaded wire 302, and the insulating layer 304. The insulating layer 304 reduces the loss of this heat, enabling the internal temperature of this charging cable to be higher than the outside of the cable for a long time when not in use for a long time, facilitating the random preparation for the next charging operation, and preventing the internal wires from becoming brittle due to low temperature and breaking during the storage and arrangement of the cable. The fastening layer 305 fastens the insulating layer 304, causing the insulating layer 304 to be appropriately compressed, further narrowing the gaps inside the insulating layer 304 and increasing the heat preservation effect of the insulating layer 304. The steel wire reinforcement mesh 301 inside the fastening layer 305 increases the tensile strength inside the overall cable.

[0024] 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 perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A low-temperature resistant charging cable for new energy vehicles, comprising an inner conductor (1), a temperature increasing mechanism (2) and a protection mechanism (3), characterized in that: The temperature increasing mechanism (2) is arranged outside the inner wire (1), and the protection mechanism (3) is arranged outside the temperature increasing mechanism (2); The temperature increasing mechanism (2) includes a motor device (210), a traveling wheel (215) and a heating coil (220). The motor device (210) drives the traveling wheel (215) to rotate, so that the traveling wheel (215) can drive the heating coil (220) to move to various positions inside the cable; The protection mechanism (3) includes a threaded wire (302). The shape of the threaded wire (302) itself can increase the overall resistance of the cable, so that the temperature of the cable rises. And when the inner wire (1) accidentally breaks, the threaded wire (302) can carry out temporary emergency power transportation work.

2. The low-temperature resistant new energy vehicle charging cable according to claim 1, characterized in that: The temperature increasing mechanism (2) further includes a heat preservation shell (201). A plurality of support frames (202) are fixedly connected to the inner side of the heat preservation shell (201). Rotating grooves (203) are formed on the outer sides of the plurality of support frames (202), and rotating telescopic rods (204) are rotatably connected to the inner sides of the plurality of rotating grooves (203).

3. The low-temperature resistant new energy vehicle charging cable according to claim 2, characterized in that: A limiting frame (223) is fixedly connected to the inside of the support frame (202), and a rope (224) is fixedly connected to the inside of the limiting frame (223). A machine shell (209) is arranged at the top of the rope (224).

4. A low-temperature resistant charging cable for new energy vehicles according to claim 1, characterized in that: The bottom output end of the motor device (210) is fixedly connected with a first gear (211), and a plurality of rotating rods (225) are rotatably connected to the bottom inner side of the motor device (210).

5. The low-temperature resistant charging cable for new energy vehicles according to claim 4, characterized in that: A fixed frame (219) is connected to the bottom of the first gear (211).

6. The low-temperature resistant new energy vehicle charging cable according to claim 5, wherein: Both sides of the fixed frame (219) are fixedly connected to the inside of the machine shell (209). The side bottom of the fixed frame (219) is fixedly connected with the heating coil (220), and a fan (221) is arranged at the bottom of the fixed frame (219).

7. The low-temperature resistant new energy vehicle charging cable according to claim 1, wherein: The protection mechanism (3) further includes a heat insulation layer (304). A fastening layer (305) is sleeved outside the heat insulation layer (304), and a steel wire reinforcement net (301) is fixedly connected to the inside of the fastening layer (305).

8. A low-temperature resistant charging cable for new energy vehicles according to claim 7, characterized in that: An inner insulating layer (5) is sleeved outside the fastening layer (305), and an insulating layer (306) is sleeved outside the inner insulating layer (5).

9. The low-temperature resistant new energy vehicle charging cable according to claim 8, wherein: An outer skin layer (307) is arranged outside the insulating layer (306), and a plurality of anti-slip blocks (309) are fixedly connected to the outside of the outer skin layer (307).

10. A low-temperature resistant charging cable for new energy vehicles according to claim 4, characterized in that: The traveling wheel (215) is a concave wheel, and the vertical cutting radius of its concave surface is greater than the vertical cutting radius of the rope (224).

Images