Cable for electric vehicle charging pile and manufacturing process thereof

Abstract

The invention relates to the technical field of cable manufacturing, in particular to a cable for an electric vehicle charging pile and a manufacturing process of the cable. The cable comprises a cable body, an electric charging pile is fixedly connected to the end of the cable body, a charging gun is fixedly connected to the end, away from the electric charging pile, of the cable body, a plurality of protection assemblies are detachably connected to the surface of the cable body in a sleeving mode, and each protection assembly comprises a long-strip-shaped suction cup. The long-strip-shaped suction cups are arranged on the periphery of the circular-ring-shaped connecting sleeve in an annular array, it is guaranteed that when the cable is dragged in any direction, the suction cups in the corresponding directions can make contact with the ground preferentially, dragging stress is dispersed in the long-strip direction, cable damage caused by local friction concentration is avoided, the inner diameter of the circular-ring-shaped connecting sleeve is matched with the outer diameter of the cable, and therefore the cable is prevented from being damaged. A stable protection layer is formed through uniform wrapping, and sliding abrasion caused by looseness of a traditional protection structure is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of cable manufacturing, and in particular to a cable for an electric vehicle charging pile and a manufacturing process thereof. Background Art

[0002] The automotive industry has introduced new energy electric vehicles, which can avoid or reduce the use of oil, promote environmental protection and alleviate the shortage crisis of traditional energy. They have broad market development prospects. As an indispensable charging accessory for electric vehicles, electric vehicle charging cables also have very broad market development prospects.

[0003] For example, the Chinese patent with publication number CN114156007A discloses a cable and processing technology for charging electric vehicles, which includes two single-core main cables, which are arranged side by side; a grounding cable, a control cable, a temperature measuring cable and a signal cable are arranged around the two single-core main cables respectively; a center cable is also arranged at the center of the cable body; independent cylindrical fillings are arranged in the gaps between the grounding cable, the control cable, the temperature measuring cable, the signal cable, the single-core main cable and the center cable; the outer periphery of the grounding cable, the control cable, the temperature measuring cable, the signal cable, the single-core main cable and the center cable is wrapped with several groups of protective layers; this invention solves the problems of poor thermal conductivity and poor heat dissipation capacity of cables in the prior art, thereby improving the current carrying capacity of the cables, and at the same time provides a processing technology, which can improve the production efficiency of the cables, reduce the production cost of the cables, and extend the service life of the cables;

[0004] Considering that during the charging process of electric vehicles, users need to first remove the charging gun from the charging pile and then move the charging gun for charging operations. During this process, the cable will move and drag on the ground with the charging gun. Long-term and frequent movement and dragging will cause continuous wear of the cable casing, especially in hot weather outdoors, when the ground temperature rises sharply. At this time, if the cable continues to be dragged, the friction between the hot ground and the cable surface will intensify, which will further aggravate the damage to the cable surface. After the cable casing is damaged, the internal insulation layer may be directly exposed. If it comes into contact with accumulated water on the ground, a humid environment or the human body, it is easy to cause a leakage accident and endanger the personal safety of the user. Summary of the Invention

[0005] The object of the present invention is to provide a cable for an electric vehicle charging pile and a manufacturing process thereof, so as to solve the problems raised in the above background technology.

[0006] To achieve the above objectives, one of the objectives of the present invention is to provide a cable for an electric vehicle charging pile, comprising a cable body, wherein the end of the cable body is fixedly connected to the electric charging pile, the end of the cable body away from the electric charging pile is fixedly connected to a charging gun, the inner cavity of the cable body is fixedly connected to a battery core, and a plurality of protective components are detachably sleeved on the surface of the cable body, wherein the protective components include elongated suction cups;

[0007] When in use, the bottom surface of the long strip suction cup forms an adsorption fixation with the contact surface, limiting the displacement of the cable body through the adsorption force and transferring the dragging friction force to the protective component;

[0008] In the storage state, the elongated suction cups of the adjacent protective components abut against each other and are positioned. After the elongated suction cups abut against each other, they assist the cable body in winding up and fixing the bending shape, so that the cable body is in a rolled storage state;

[0009] The long suction cup of the protective component is adsorbed on the ground, mainly to protect and fix the cable body, reduce the friction and displacement of the cable when it moves and is dragged on the ground, and avoid problems such as internal circuit damage and loose charging interface due to excessive friction, shaking or dragging of the cable, thereby helping to ensure the stability and safety of charging.

[0010] As a further improvement of the present technical solution, the protective component includes a connecting sleeve sleeved on the surface of the cable body, the connecting sleeve is annular, and its inner diameter is adapted to the outer diameter of the cable body, and is used to tightly sleeve the outer surface of the cable body, the elongated suction cup is fixedly connected to the outer surface of the connecting sleeve, and its adsorption end faces outward, and is used to form adsorption contact with the external contact surface, the elongated suction cup is multiple, and the elongated suction cups are arranged in an annular array at equal angles on the outer circumferential surface of the connecting sleeve;

[0011] By distributing a circular array of long strip suction cups on the surface of the connecting sleeve, it is ensured that the long strip suction cups participate in the force in any dragging direction, providing uniform buffer protection for the cable body.

[0012] The protective components are arranged in multiple groups at intervals along the axial direction of the cable body. Each group of protective components includes a connecting sleeve and an annular array of elongated suction cups. The outer surfaces of the elongated suction cups are provided with anti-slip grooves. When the cable is reeled, the elongated suction cups of adjacent protective components abut against each other, and the outer surface of one elongated suction cup forms a three-point abutment with the outer surfaces of the other two elongated suction cups.

[0013] The cable body is bent so that the elongated suction cups of adjacent protective components begin to approach each other, and one elongated suction cup is inserted between the other two elongated suction cups, so that the outer surface of one elongated suction cup forms a three-point abutment structure with the outer surfaces of the other two elongated suction cups. On the one hand, during the winding process, the multiple contact points can abut against each other to provide support for the cable, preventing the cable from being creased or the internal line from being damaged due to excessive bending. On the other hand, after the cable is wound, the three-point abutment forms a stable fixed structure, so that the wound cable maintains a regular shape and avoids looseness.

[0014] The surface of the connecting sleeve is provided with an opening, so that the connecting sleeve has a C-shaped ring structure. The connecting sleeve is made of thermoplastic elastomer TPE. The surface of the cable body is provided with a limiting groove. The end of the connecting sleeve away from the elongated suction cup is fixedly connected to a positioning block, and the surface of the positioning block contacts the inner wall of the limiting groove.

[0015] External force pushes open the opening, temporarily expanding the inner diameter of the connecting sleeve to facilitate the insertion of the cable body. After the external force is removed, the connecting sleeve relies on elastic restoring force to tighten the cable surface. When the connecting sleeve is connected to the cable body, the surface of the positioning block will be embedded in the inner wall of the limit groove. At this time, the positioning block will be constrained in the horizontal and vertical directions.

[0016] A second object of the present invention is to provide a cable for an electric vehicle charging pile and a manufacturing method thereof, comprising the following steps:

[0017] Step 1: A special forming die is configured at the output end of the extruder, wherein the die has a protrusion structure that matches the limiting groove, and the outer surface of the cable body is axially extended out of the limiting groove through the extrusion process;

[0018] Step 2: Apply tension to expand the opening of the connecting sleeve, temporarily increasing its inner diameter, and move the connecting sleeve axially along the cable body to the target position. At the same time, align the positioning block on the inner side of the connecting sleeve with the entrance of the limiting groove. After releasing the tension, the connecting sleeve is tightened to the cable surface by elastic restoring force, and the positioning block is embedded in the limiting groove to form a double limit in radial and circumferential directions.

[0019] Step 3: When the charging gun is moved, the cable body moves under the action of tension, driving the protective component to move synchronously, and the long strip suction cup slides on the ground;

[0020] Step 4: When the charging gun stops moving, the long suction cup adheres to the ground under its own weight and is fixed to the ground;

[0021] Step 5. After unplugging the charging gun, bend the cable body. The long suction cups of adjacent protective components approach each other during the bending process. At this time, insert the outer surface of one long suction cup between the other two long suction cups to form a three-point interlocking to ensure that the reeled cable will not loosen spontaneously.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. This electric vehicle charging pile cable features long suction cups arranged in a circular array around the outer circumference of the annular connector sleeve. This ensures that when the cable is dragged in any direction, the suction cups in the corresponding position will preferentially contact the ground, dispersing the dragging stress along the length of the cable to avoid cable damage caused by localized friction. The inner diameter of the annular connector sleeve matches the outer diameter of the cable, forming a stable protective layer through uniform wrapping, thus avoiding sliding wear caused by loosening of traditional protective structures. The protective component is combined with the cable body through a detachable sleeve, allowing users to add or remove components or replace damaged parts as needed, and the operation can be completed quickly without the need for specialized tools.

[0024] The C-shaped ring structure and the open design of the connecting sleeve can be quickly inserted into the cable body by manually stretching it out without the need for auxiliary tools. The embedded cooperation of the positioning block and the limit groove limits the displacement of the connecting sleeve in the horizontal and vertical directions, preventing the component from sliding or falling off during cable dragging. Even in severe dragging or high temperature environments, it can still maintain a stable connection.

[0025] 2. In the cable for electric vehicle charging piles, when winding, the cable body is bent so that the elongated suction cups of adjacent protective components abut against each other. The outer surface of one elongated suction cup is inserted between the other two elongated suction cups to form a three-point interlocking structure, which reduces creases caused by local excessive bending and protects the internal battery core and insulation layer from mechanical damage. In the three-point abutment state, the cable maintains a tightly wound shape, reducing spontaneous loosening during transportation or storage. The anti-slip texture further enhances the friction of the contact surface, preventing relative sliding between the suction cups, and maintaining a stable shape, especially in a bumpy environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure assembly of the present invention;

[0027] Figure 2 This is a schematic diagram of the structure of the protection component of the present invention;

[0028] Figure 3 Schematic diagram of the battery cell structure of the present invention;

[0029] Figure 4 For the present invention Figure 3 A schematic diagram of the enlarged structure at point A;

[0030] Figure 5 This is a schematic diagram of the connecting sleeve structure of the present invention;

[0031] Figure 6 This is a schematic diagram of the charging gun structure of the present invention;

[0032] Figure 7 This is a schematic diagram of the structure of the long strip suction cup of the present invention;

[0033] The meaning of each mark in the figure is:

[0034] 100, cable body; 101, battery cell; 102, limit slot; 110, electric charging pile; 120, charging gun;

[0035] 200, protective component; 210, positioning block; 220, connecting sleeve; 2201, opening; 230, long strip suction cup; 2301, anti-slip texture. DETAILED DESCRIPTION

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0037] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0038] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature identified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0039] Example 1

[0040] See also Figure 1-Figure 7As shown, this embodiment provides a cable for an electric vehicle charging pile and a manufacturing process thereof, including a cable body 100, an end of the cable body 100 is fixedly connected to an electric charging pile 110, an end of the cable body 100 away from the electric charging pile 110 is fixedly connected to a charging gun 120, and a plurality of protective components 200 are detachably sleeved on the surface of the cable body 100, and the protective components 200 include elongated suction cups 230;

[0041] In use: the bottom surface of the long strip suction cup 230 forms an adsorption fixation with the contact surface, limiting the displacement of the cable body 100 through the adsorption force and transferring the dragging friction force to the protective component 200;

[0042] In the storage state, the elongated suction cups 230 of the adjacent protective components 200 abut against each other and are positioned. After the elongated suction cups 230 abut against each other, the cable body 100 is assisted to be rolled up and fixed in the curved shape, so that the cable body 100 is in a rolled storage state;

[0043] The user can quickly install multiple protective components 200 on the surface of the cable body 100 in a detachable sleeve manner according to the key areas of the cable body 100 that are prone to wear, and the installation can be completed without additional tools. When the user removes the charging gun 120 from the electric charging pile 110 and moves the charging gun 120 for charging, the cable body 100 moves and drags on the ground together with the charging gun 120. At this time, the bottom surface of the long strip suction cup 230 on the protective component 200 is tightly in contact with the contact surface such as the ground, forming an adsorption fixation. With the adsorption force of the long strip suction cup 230, the displacement of the cable body 100 on the ground is effectively limited, and its relative sliding distance with the ground is reduced. At the same time, when the cable is dragged, the dragging friction originally acting on the surface of the cable body 100 is transferred to the protective component 200. The protective component 200 acts as a protective barrier to withstand friction loss, thereby preventing the outer shell of the cable body 100 from direct contact with the high-temperature ground and rough road surface, and preventing the outer shell from being damaged due to long-term friction.

[0044] After charging is completed, the user rolls up the cable body 100. During the storage process, the long suction cups 230 of adjacent protective components 200 abut against each other to form positioning support points. These long suction cups 230 assist the cable body 100 in being rolled up according to the set bending arc, so that the cable body 100 can be stored regularly and compactly, avoiding the risk of damage to the battery cells 101 inside the cable caused by traditional random bending, while significantly improving the compactness of storage and saving storage space.

[0045] In order to enable the protective component 200 to be sleeved on the surface of the cable body 100, it is necessary to further disclose the parts of the protective component 200. Therefore, the protective component 200 includes a connecting sleeve 220 that is sleeved on the surface of the cable body 100. The connecting sleeve 220 is annular, and its inner diameter is adapted to the outer diameter of the cable body 100, and is used to tightly sleeve on the outer surface of the cable body 100; the outer surface of the cable body 100 can be wrapped by the annular connecting sleeve 220 to ensure uniform contact pressure with the surface of the cable body 100.

[0046] In order to enable the elongated suction cup 230 to protect the cable body 100 through the protective component 200, it is necessary to further disclose the position of the elongated suction cup 230. Therefore, the elongated suction cup 230 is fixedly connected to the outer surface of the connecting sleeve 220, with its adsorption end facing outward, for forming adsorption contact with the external contact surface; when the cable body 100 is subjected to a dragging force, the output end of the elongated suction cup 230 preferentially fits with the external contact surface, and uses its flexible deformation ability and negative pressure adsorption effect to disperse the dragging stress, thereby avoiding direct friction damage to the cable body 100.

[0047] Taking into account that when the mobile charging gun 120 outputs electricity to the electric vehicle, the dragging of the cable body 100 is an all-round movement and is not limited to one direction, therefore, there are multiple long strip suction cups 230, and the long strip suction cups 230 are arranged in a circular array with equal angle intervals on the outer peripheral surface of the connecting sleeve 220; by distributing the long strip suction cups 230 in a circular array on the surface of the connecting sleeve 220, it is ensured that the long strip suction cups 230 participate in the force in any dragging direction, providing uniform buffering protection for the cable body 100.

[0048] Considering that the cable body 100 needs to be reeled after charging the electric vehicle, the protective components 200 are provided in multiple groups and spaced apart along the axial direction of the cable body 100. Each group of protective components 200 includes a connecting sleeve 220 and long strip suction cups 230 distributed in an annular array.

[0049] When the cable is in the reeled state, the elongated suction cups 230 of adjacent protective components 200 abut against each other, and the outer surface of one elongated suction cup 230 forms a three-point abutment with the outer surfaces of the other two elongated suction cups 230;

[0050] When charging is completed and the cable body 100 needs to be reeled up, the cable body 100 is manually bent so that the elongated suction cups 230 of the adjacent protective components 200 begin to approach each other, and one elongated suction cup 230 is inserted between the other two elongated suction cups 230, so that the outer surface of one elongated suction cup 230 and the outer surfaces of the other two elongated suction cups 230 form a three-point abutment structure. On the one hand, during the reeling process, the multiple contact points can abut against each other to provide support for the cable, thereby preventing the cable from being creased or the internal circuit from being damaged due to excessive bending. On the other hand, after the cable is reeled up, the three-point abutment forms a stable fixed structure, so that the reeled cable maintains a regular shape and avoids looseness.

[0051] like Figure 6 As shown, the matching relationship between the cable body 100 and the protective assembly 200 in the reeled state;

[0052] like Figure 7 As shown, in the rolled-up state, the outer surface of one elongated suction cup 230 forms a three-point abutment structure with the outer surfaces of the other two elongated suction cups 230 .

[0053] In order to prevent one elongated suction cup 230 from slipping when the outer surfaces of two other elongated suction cups 230 abut against each other, the outer surfaces of the elongated suction cups 230 are all provided with anti-slip grooves 2301; when adjacent elongated suction cups 230 contact each other and form a three-point abutment, the anti-slip grooves 2301 first increase the friction by increasing the surface roughness. According to the principle of friction, the rougher the surface, the greater the resistance to relative sliding between objects.

[0054] In order to enable the connecting sleeve 220 to be sleeved on the surface of the cable body 100, an opening 2201 is opened on the surface of the connecting sleeve 220, so that the connecting sleeve 220 has a C-shaped ring structure, and the connecting sleeve 220 adopts thermoplastic elastomer TPE; the opening 2201 is opened by external force, so that the inner diameter of the connecting sleeve 220 is temporarily expanded to facilitate the insertion of the cable body 100. After the external force is removed, the connecting sleeve 220 relies on elastic restoring force to tighten the cable surface to prevent axial sliding.

[0055] In order to make the connection between the protective component 200 and the cable body 100 more stable, a limiting groove 102 is opened on the surface of the cable body 100, and the end of the connecting sleeve 220 away from the elongated suction cup 230 is fixedly connected to a positioning block 210, and the surface of the positioning block 210 contacts the inner wall of the limiting groove 102; when the connecting sleeve 220 is sleeved on the cable body 100, the surface of the positioning block 210 will be embedded in the inner wall of the limiting groove 102. At this time, the positioning block 210 will be constrained in the horizontal and vertical directions, ensuring that the position of the connecting sleeve 220 on the cable body 100 is fixed and will not easily shift or fall off, thereby completing a preliminary stable connection.

[0056] The inner cavity of the cable body 100 is fixedly connected with a battery core 101;

[0057] The second purpose is that the present invention also provides a method for manufacturing a cable for an electric vehicle charging pile, which includes the following steps:

[0058] Step 1: A special forming die is configured at the output end of the extruder, wherein the die has a protrusion structure that matches the limiting groove 102, and the outer surface of the cable body 100 is axially extended out of the limiting groove 102 through an extrusion process;

[0059] Step 2: Apply tension to expand the opening 2201 of the connecting sleeve 220, temporarily increasing its inner diameter, and move the connecting sleeve 220 axially along the cable body 100 to the target position. At the same time, align the positioning block 210 inside the connecting sleeve 220 with the entrance of the limiting groove 102. After releasing the tension, the connecting sleeve 220 is tightly clamped to the cable surface by its elastic restoring force, and the positioning block 210 is embedded in the limiting groove 102 to form a double limit in radial and circumferential directions.

[0060] Step 3: When the charging gun 120 is moved, the cable body 100 moves under the action of tension, driving the protective component 200 to move synchronously, and the long strip suction cup 230 slides on the ground accordingly;

[0061] Step 4: When the charging gun 120 stops moving, the long strip suction cup 230 adheres to the ground under its own weight and is fixed to the ground;

[0062] Step 5: After removing the charging connector 120, bend the cable body 100. The elongated suction cups 230 of adjacent protective components 200 will approach each other during the bending process. Insert the outer surface of one elongated suction cup 230 between the other two elongated suction cups 230 to form a three-point interlocking mechanism, ensuring that the reeled cable will not loosen spontaneously.

[0063] In summary, the workflow of the present invention is:

[0064] First, according to the wear risk area of ​​the cable body 100, multiple protective components 200 are installed on the outer surface of the cable body 100 by detachable sleeve connection;

[0065] During charging, the charging gun 120 is removed from the electric charging station 110 and moved, and the cable body 100 is dragged on the ground. At this time, the long strip suction cup 230 of the protective component 200 will slide on the ground, so that the cable body 100 will not directly contact the ground and generate friction, and the surface of the cable body 100 can be protected;

[0066] During the charging process, the cable body 100 will stop moving. At this time, the long strip suction cup 230 will be attached to the ground and gradually absorbed by the ground, so that the cable body 100 is fixed on the ground to prevent it from sliding around.

[0067] like Figure 6 、 Figure 7 As shown, after charging is completed, the cable body 100 begins to be reeled. At this time, the cable body 100 is bent so that the elongated suction cups 230 of adjacent protective components 200 abut against each other, and the outer surface of one elongated suction cup 230 is inserted between the other two elongated suction cups 230 to form a three-point interlocking structure, which can ensure that the cable is bent according to the specified curvature and reduce damage to the internal battery cell 101 due to excessive bending.

[0068] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A cable for an electric vehicle charging pile, comprising a cable body (100), wherein an end of the cable body (100) is fixedly connected to an electric charging pile (110), and an end of the cable body (100) away from the electric charging pile (110) is fixedly connected to a charging gun (120), characterized in that: A plurality of protective components (200) are detachably sleeved on the surface of the cable body (100), and the protective components (200) include long strip-shaped suction cups (230); In the use state, the bottom surface of the long strip suction cup (230) and the contact surface are adsorbed and fixed, and the displacement of the cable body (100) is limited by the adsorption force and the dragging friction force is transferred to the protective component (200); In the storage state, the elongated suction cups (230) of the adjacent protective components (200) abut against each other for positioning. After the abutment, the elongated suction cups (230) assist the cable body (100) in rolling up and fixing the bending shape, so that the cable body (100) is in a rolled storage state.

2. The electric vehicle charging pile cable according to claim 1, characterized in that: The protective component (200) includes a connecting sleeve (220) sleeved on the surface of the cable body (100); the connecting sleeve (220) is annular, and its inner diameter is adapted to the outer diameter of the cable body (100), and is used to be tightly sleeved on the outer surface of the cable body (100).

3. The electric vehicle charging pile cable according to claim 2, characterized in that: The long strip suction cup (230) is fixedly connected to the outer surface of the connecting sleeve (220), with its suction end facing outwards, and is used to form suction contact with the external contact surface.

4. The electric vehicle charging pile cable according to claim 2, characterized in that: There are a plurality of the elongated suction cups (230), and the elongated suction cups (230) are arranged in a circular array at equal angle intervals on the outer peripheral surface of the connecting sleeve (220).

5. The electric vehicle charging pile cable according to claim 2, characterized in that: The protective components (200) are multiple groups, which are spaced apart along the axial direction of the cable body (100), and each group of protective components (200) includes a connecting sleeve (220) and long strip suction cups (230) distributed in a circular array; When the cable is in a reeled state, the elongated suction cups (230) of adjacent protective components (200) abut against each other, and the outer surface of one elongated suction cup (230) forms a three-point abutment with the outer surfaces of the other two elongated suction cups (230).

6. The electric vehicle charging pile cable according to claim 5, characterized in that: The outer surfaces of the elongated suction cups (230) are provided with anti-slip patterns (2301).

7. The electric vehicle charging pile cable according to claim 3, characterized in that: An opening (2201) is provided on the surface of the connecting sleeve (220), so that the connecting sleeve (220) has a C-shaped ring structure, and the connecting sleeve (220) is made of thermoplastic elastomer TPE.

8. The electric vehicle charging pile cable according to claim 2, characterized in that: A limiting groove (102) is provided on the surface of the cable body (100); one end of the connecting sleeve (220) away from the elongated suction cup (230) is fixedly connected to a positioning block (210); and the surface of the positioning block (210) contacts the inner wall of the limiting groove (102).

9. The electric vehicle charging pile cable according to claim 1, characterized in that: The inner cavity of the cable body (100) is fixedly connected with a battery core (101).

10. A cable for an electric vehicle charging pile and a manufacturing process thereof using any one of claims 1 to 9, characterized in that: The method comprises the following steps: Step 1: a special forming die is arranged at the output end of the extruder, wherein the die has a protruding structure matching the limiting groove (102), and the outer surface of the cable body (100) is axially extended out of the limiting groove (102) through an extrusion process; Step 2: Apply a pulling force to expand the opening (2201) of the connecting sleeve (220) so that its inner diameter is temporarily increased, and the connecting sleeve (220) is moved axially along the cable body (100) to the target position, and at the same time, the positioning block (210) inside the connecting sleeve (220) is aligned with the entrance of the limiting groove (102). After releasing the pulling force, the connecting sleeve (220) is tightly clamped to the cable surface by elastic restoring force, and at the same time, the positioning block (210) is embedded in the limiting groove (102) to form a double limit in radial and circumferential directions; Step 3: When the charging gun (120) is moved, the cable body (100) moves under the action of the tension, driving the protective component (200) to move synchronously, and the long strip suction cup (230) slides on the ground accordingly; Step 4: When the charging gun (120) stops moving, the long strip suction cup (230) adheres to the ground under the action of its own weight and is fixed to the ground by adsorption; Step 5: After pulling out the charging gun (120), bend the cable body (100), and the elongated suction cups (230) of adjacent protective components (200) approach each other during the bending process. At this time, the outer surface of one of the elongated suction cups (230) is inserted between the other two elongated suction cups (230) to form a three-point interlocking to ensure that the cable will not loosen spontaneously after being rolled up.

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