An electric vehicle charging pile cable and a manufacturing process thereof

Abstract

The application relates to the technical field of cable manufacturing, in particular to a cable for electric vehicle charging piles and a manufacturing process thereof. The cable comprises a cable main body, the end of the cable main body is fixedly connected with an electric charging pile, one end of the cable main body away from the electric charging pile is fixedly connected with a charging gun, and a plurality of protection assemblies are detachably sleeved on the surface of the cable main body. The protection assembly comprises a long-strip suction cup. The long-strip suction cups are arranged in an annular array on the outer periphery of a circular annular connecting sleeve, so that the suction cups in the corresponding directions can preferentially contact the ground when the cable is dragged in any direction, the dragging stress is dispersed along the long-strip direction, cable damage caused by local friction concentration is avoided, the inner diameter of the circular annular connecting sleeve is matched with the outer diameter of the cable, a stable protection layer is formed by uniform wrapping, and sliding wear caused by loosening of the traditional protection structure is avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cable manufacturing, in particular to a cable for electric vehicle charging piles and a manufacturing process thereof. BACKGROUND

[0002] With the development of society, the global energy crisis is intensifying, oil resources are becoming increasingly depleted, air pollution and global warming are becoming increasingly serious, and automobiles, as an indispensable means of transportation for people, are usually driven by burning oil, which exacerbates the energy and environmental crisis. In response to this, the automobile industry has introduced new energy electric vehicles, which can avoid or reduce oil burning, are conducive to promoting environmental protection and alleviating the shortage crisis of traditional energy, and have broad market development prospects. Electric vehicle charging cables, as indispensable charging accessories for electric vehicles, also have very broad market development prospects.

[0003] For example, the Chinese patent with publication number CN114156007A discloses a cable for electric vehicle charging and a processing technology, which includes two single-core main cables, the two single-core main cables 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; a center cable is arranged at the center position of the cable body; an independent cylindrical filler is arranged at the gap 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 a plurality of protective layers; the present application solves the problems of poor heat conduction and poor heat dissipation of the cable in the prior art, thereby improving the current carrying capacity of the cable, and provides a processing technology, which can improve the production efficiency of the cable, reduce the production cost of the cable, and prolong the service life of the cable.

[0004] Considering that during the charging process of the electric vehicle, the user needs to remove the charging gun from the charging pile and then move the charging gun for charging operation, in this process, the cable will move and drag on the ground together with the charging gun, and long-term frequent movement and dragging will cause continuous wear of the cable shell. In particular, in high-temperature outdoor weather, the ground temperature rises sharply, and at this time, if the cable continues to be dragged, the friction between the high-temperature ground and the surface of the cable will intensify, which will further increase the damage degree of the surface of the cable. After the cable shell is damaged, the internal insulation layer may be directly exposed, and if it comes into contact with ground water, a humid environment, or the human body, it is easy to cause an electric shock accident, endangering the personal safety of the user. SUMMARY

[0005] The present application aims to provide a cable for electric vehicle charging piles and a manufacturing process thereof to solve the problems raised in the background art.

[0006] In order to achieve the above-mentioned purpose, one of the purposes of the present application is to provide an electric vehicle charging pile cable, which comprises a cable main body, the end of the cable main body is fixedly connected with an electric charging pile, the end of the cable main body away from the electric charging pile is fixedly connected with a charging gun, the inner cavity of the cable main body is fixedly connected with an electric core, and a plurality of protection assemblies are detachably sleeved on the surface of the cable main body; the protection assembly comprises an elongated suction cup;

[0007] In use, the bottom surface of the elongated suction cup is in adsorption fixation with the contact surface, the displacement of the cable main body is limited by the adsorption force, and the drag friction is transferred to the protection assembly;

[0008] In the storage state, the elongated suction cups of adjacent protection assemblies are positioned in abutment, the elongated suction cups abut to assist the winding and bending of the cable main body, so that the cable main body is in a rolled storage state;

[0009] The elongated suction cup of the protection assembly is adsorbed on the ground, mainly to protect and fix the cable main body, reduce the friction and displacement of the cable when moving and dragging on the ground, and avoid problems such as internal line damage and loose charging interface caused by excessive friction, shaking or dragging, so as to help ensure the stability and safety of charging.

[0010] As a further improvement of the technical solution, the protection assembly comprises a connecting sleeve sleeved on the surface of the cable main body, the connecting sleeve is in the form of a ring, the inner diameter of the connecting sleeve is matched with the outer diameter of the cable main body, and the connecting sleeve is tightly sleeved on the outer surface of the cable main body; the elongated suction cup is fixedly connected to the outer surface of the connecting sleeve, and the adsorption end of the elongated suction cup faces outward to form adsorption contact with the external contact surface; the elongated suction cup is in the form of a plurality of, and the elongated suction cup is arranged on the outer peripheral surface of the connecting sleeve in the form of an equiangularly spaced annular array;

[0011] By arranging the elongated suction cups in the form of an annular array on the surface of the connecting sleeve, it is ensured that the elongated suction cups are involved in force in any dragging direction, and uniform buffer protection is provided for the cable main body.

[0012] The protection assembly is in the form of a plurality of groups, and is arranged in the axial direction of the cable main body; each group of protection assemblies comprises a connecting sleeve and an annular array of elongated suction cups; the outer surface of the elongated suction cup is provided with anti-skid lines; in the cable winding state, the elongated suction cups of adjacent protection assemblies are in abutment with each other, and the outer surface of one of the elongated suction cups is in three-point abutment with the outer surfaces of the other two elongated suction cups.

[0013] The bending cable body makes the long strip suction cups of adjacent protection assemblies start to approach each other, and one long strip suction cup is inserted into the middle of the other two long strip suction cups, so that the outer surfaces of the one long strip suction cup and the outer surfaces of the other two long strip suction cups form a three-point abutting structure, on the one hand, during the winding process, the cable can be supported through mutual abutting of multiple contact points, so that the cable is prevented from being damaged due to excessive bending, and on the other hand, after the winding of the cable is completed, the three-point abutting forms a stable fixing structure, so that the wound cable keeps a regular shape and is prevented from being loose.

[0014] The connecting sleeve is provided with an opening on the surface, so that the connecting sleeve is in 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, and the end, away from the long strip suction cup, of the connecting sleeve is fixedly connected with a positioning block; the surface of the positioning block is in contact with the inner wall of the limiting groove;

[0015] An external force is used to open the opening, so that the inner diameter of the connecting sleeve is temporarily expanded, the cable body is easily sleeved, and after the external force is removed, the connecting sleeve is tightly clamped on the surface of the cable body by the elastic restoring force; when the connecting sleeve is sleeved on the cable body, the surface of the positioning block is embedded in the inner wall of the limiting groove, so that the positioning block is horizontally and vertically constrained.

[0016] The second object of the application is to provide a cable for electric vehicle charging piles and a manufacturing method thereof, which comprises the following method steps:

[0017] In step one, a special forming die is arranged at the output end of the extruder, the die has a protruding structure matched with the limiting groove, and the limiting groove is extended on the outer surface of the cable body in the axial direction through the extrusion process;

[0018] In step two, a pulling force is applied to expand the opening of the connecting sleeve, so that the inner diameter of the connecting sleeve is temporarily increased, the connecting sleeve is moved to the target position in the axial direction of the cable body, and the positioning block on the inner side of the connecting sleeve is aligned with the entrance of the limiting groove; after the pulling force is released, the connecting sleeve is tightly clamped on the surface of the cable body by the elastic restoring force of the connecting sleeve, and the positioning block is embedded in the limiting groove, so that the positioning block is radially and circumferentially limited;

[0019] In step three, when the charging gun is moved, the cable body is moved under the action of the pulling force, the protection assembly is synchronously displaced, and the long strip suction cup slides on the ground;

[0020] In step four, when the charging gun stops moving, the long strip suction cup is attached to the ground under the action of the self-weight and is fixedly adsorbed to the ground;

[0021] Step 5: After unplugging the charging gun, bend the main body of the cable. The long strip suction cups of the adjacent protective components will move closer to each other during the bending process. At this time, insert the outer surface of one of the long strip suction cups between the other two long strip suction cups to form a three-point interlock, ensuring that the cable will not come loose on its own after being wound up.

[0022] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0023] 1. In this electric vehicle charging pile cable, long strip-shaped suction cups are arranged in a ring array around the outer periphery of the circular connecting sleeve. This ensures that when the cable is dragged in any direction, the suction cups in the corresponding positions can make contact with the ground first, dispersing the dragging stress along the long strip direction and avoiding cable damage caused by local friction concentration. The inner diameter of the circular connecting sleeve is adapted to the outer diameter of the cable, and a stable protective layer is formed by uniform wrapping, avoiding sliding wear caused by loosening of traditional protective structures. The protective components are combined with the cable body through a detachable sleeve method, allowing users to add or remove the quantity or replace damaged parts as needed, and the operation can be completed quickly without professional tools.

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

[0025] 2. In the cable for electric vehicle charging piles, during 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, forming a three-point interlocking structure. This reduces creases caused by excessive bending in certain areas, protects the internal battery core and insulation layer from mechanical damage, and keeps the cable tightly wound in the three-point abutment state, reducing spontaneous loosening during transportation or storage. The anti-slip texture further enhances the friction of the contact surface, preventing relative slippage between the suction cups, and maintaining shape stability, especially in bumpy environments. Attached Figure Description

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

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

[0028] Figure 3 This is a schematic diagram of the battery cell structure of the present invention;

[0029] Figure 4 For the present invention Figure 3 A magnified structural diagram at point A;

[0030] Figure 5 It is a schematic view of the connecting sleeve structure of the present application.

[0031] Figure 6 It is a schematic view of the charging gun structure of the present application.

[0032] Figure 7 It is a schematic view of the long strip suction cup structure of the present application.

[0033] The meanings of various reference numerals in the drawings are as follows:

[0034] 100, cable main body; 101, electric core; 102, limiting groove; 110, electric charging pile; 120, charging gun;

[0035] 200, protection assembly; 210, positioning block; 220, connecting sleeve; 2201, opening; 230, long strip suction cup; 2301, anti-skid line. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0037] In the description of the present application, it should be understood that the terms “center”, “longitudinal”, “transverse”, “length”, “width”, “thickness”, “upper”, “lower”, “front”, “rear”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inner”, “outer”, “clockwise”, “counterclockwise” and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0038] In addition, the terms “first” and “second” are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features referred to. Therefore, the features defined with “first” and “second” can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of “multiple” is two or more, unless otherwise specifically limited. EMBODIMENTS

[0039] Please refer to Figures 1-7As shown, the embodiment provides a cable for electric vehicle charging pile and a manufacturing process thereof, which comprises a cable body 100, the end of the cable body 100 is fixedly connected with an electric charging pile 110, the end of the cable body 100 away from the electric charging pile 110 is fixedly connected with a charging gun 120, and a plurality of protection assemblies 200 are detachably sleeved on the surface of the cable body 100, the protection assembly 200 comprises an elongated suction cup 230;

[0040] In use, the bottom surface of the elongated suction cup 230 is in suction fixation with the contact surface, and the displacement of the cable body 100 is limited by the suction force and the drag friction is transferred to the protection assembly 200;

[0041] In the storage state, the elongated suction cups 230 of adjacent protection assemblies 200 are positioned against each other, and the elongated suction cups 230 assist the cable body 100 to be wound and fixed in a curved shape after abutting, so that the cable body 100 is in a rolled storage state;

[0042] The user installs the plurality of protection assemblies 200 on the surface of the cable body 100 by detachable sleeving according to the key areas of the cable body 100 which 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 operation, the cable body 100 moves and drags on the ground with the charging gun 120, at this time, the bottom surface of the elongated suction cup 230 on the protection assembly 200 closely abuts the ground and other contact surfaces to form suction fixation, and the displacement of the cable body 100 on the ground is effectively limited by the suction force of the elongated suction cup 230, and the relative sliding distance of the cable body 100 on the ground is reduced, and in the process of dragging the cable, the drag friction originally acting on the surface of the cable body 100 is transferred to the protection assembly 200, the protection assembly 200 acts as a protective barrier to bear the friction loss, and the shell of the cable body 100 is prevented from being directly contacted with the high-temperature ground and rough road surface to prevent the shell from being damaged due to long-term friction;

[0043] After charging is completed, the user winds the cable body 100, and in the storage process, the elongated suction cups 230 of adjacent protection assemblies 200 abut against each other to form positioning support points, and these elongated suction cups 230 assist the cable body 100 to be wound according to the set bending radius, so that the cable body 100 can be regularly and compactly stored, the damage risk of the internal battery 101 of the cable caused by traditional random bending is avoided, and the compactness of storage is significantly improved, and the storage space is saved.

[0044] In order to enable the protection assembly 200 to be sleeved on the surface of the cable body 100, the parts of the protection assembly 200 need to be further disclosed, so that the protection assembly 200 comprises a connecting sleeve 220 sleeved on the surface of the cable body 100, the connecting sleeve 220 is annular, the inner diameter of the connecting sleeve 220 is matched with the outer diameter of the cable body 100, and the connecting sleeve 220 is used for being closely sleeved on the outer surface of the cable body 100; the outer surface of the cable body 100 can be wrapped through the annular connecting sleeve 220, and uniform contact pressure with the surface of the cable body 100 is ensured.

[0045] In order to enable the long strip-shaped suction disc 230 to protect the cable body 100 through the protection assembly 200, the position of the long strip-shaped suction disc 230 needs to be further disclosed, so that the long strip-shaped suction disc 230 is fixedly connected to the outer surface of the connecting sleeve 220, the suction end of the long strip-shaped suction disc 230 faces outward, and the long strip-shaped suction disc 230 is used for forming suction contact with the external contact surface; when the cable body 100 is subjected to a dragging force, the output end of the long strip-shaped suction disc 230 is preferentially attached to the external contact surface, and the flexible deformation capability and the negative pressure suction effect of the long strip-shaped suction disc 230 are used to disperse the dragging stress, so that the cable body 100 is prevented from being directly rubbed and damaged.

[0046] Considering that when the mobile charging gun 120 outputs power to the electric vehicle, the dragging of the cable body 100 is omnidirectional movement and is not limited to one direction, the long strip-shaped suction disc 230 is provided in plurality, and the long strip-shaped suction disc 230 is arranged in an equiangular interval annular array on the outer peripheral surface of the connecting sleeve 220; through the annular array distribution of the long strip-shaped suction disc 230 on the surface of the connecting sleeve 220, it is ensured that the long strip-shaped suction disc 230 participates in stress in any dragging direction, and uniform buffer protection is provided for the cable body 100.

[0047] Considering that after charging of the electric vehicle is completed, the cable body 100 needs to be wound, so that the protection assembly 200 is provided in plurality, and is arranged in an axial interval along the cable body 100, each group of protection assemblies 200 comprises the connecting sleeve 220 and the long strip-shaped suction disc 230 arranged in an annular array;

[0048] In the cable winding state, the long strip-shaped suction discs 230 of adjacent protection assemblies 200 abut each other, and the outer surface of one long strip-shaped suction disc 230 forms three-point abutment with the outer surfaces of the other two long strip-shaped suction discs 230;

[0049] When the charging is completed and the cable body 100 needs to be rolled up, the cable body 100 is manually bent to make the adjacent long strip suction cups 230 begin to approach each other, and one long strip suction cup 230 is inserted into the middle of the other two long strip suction cups 230, so that the outer surface of one long strip suction cup 230 and the outer surfaces of the other two long strip suction cups 230 form a three-point abutting structure. On the one hand, during the rolling process, the cable is supported through the mutual abutting of multiple contact points to prevent the cable from being damaged due to excessive bending or internal wiring damage. On the other hand, after the cable is rolled up, the three-point abutting forms a stable fixing structure to keep the rolled cable in a regular shape and avoid looseness.

[0050] As shown in Figure 6 the cooperation relationship between the cable body 100 in the rolled state and the protection assembly 200;

[0051] As shown in Figure 7 for the rolled state, the outer surface of one long strip suction cup 230 and the outer surfaces of the other two long strip suction cups 230 form a three-point abutting structure.

[0052] In order to prevent slipping when one long strip suction cup 230 and the outer surfaces of the other two long strip suction cups 230 abut each other, the outer surface of the long strip suction cup 230 is provided with anti-slip lines 2301. When the adjacent long strip suction cups 230 contact each other and form a three-point abutting structure, the anti-slip lines 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.

[0053] In order to enable the connecting sleeve 220 to be sleeved on the surface of the cable body 100, the connecting sleeve 220 is provided with an opening 2201 on the surface, so that the connecting sleeve 220 has a C-shaped ring structure, and the connecting sleeve 220 is made of thermoplastic elastomer TPE. By externally expanding the opening 2201, the inner diameter of the connecting sleeve 220 is temporarily expanded, so that the connecting sleeve 220 can be easily sleeved on the cable body 100. After the external force is removed, the connecting sleeve 220 tightly grips the surface of the cable by the elastic restoring force, preventing axial sliding.

[0054] In order to make the connection between the protection assembly 200 and the cable body 100 more stable, the cable body 100 is provided with a limiting groove 102 on the surface, and the end of the connecting sleeve 220 away from the long strip suction cup 230 is fixedly connected with a positioning block 210, and the surface of the positioning block 210 is in contact with 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 horizontal and vertical directions, ensuring that the position of the connecting sleeve 220 on the cable body 100 is fixed and cannot easily deviate or fall off, completing the preliminary stable connection.

[0055] The electric core 101 is fixedly connected in the inner cavity of the cable body 100.

[0056] The second purpose is to provide a cable for electric vehicle charging pile and a manufacturing method thereof.

[0057] Step one, a special forming die is arranged at the output end of the extruder, the die has a protruding structure matched with the limiting groove 102, and the outer surface of the cable body 100 is extended axially out of the limiting groove 102 through the extrusion process;

[0058] Step two, the opening 2201 of the connecting sleeve 220 is expanded by applying tension, so that the inner diameter temporarily increases, and the connecting sleeve 220 is moved axially along the cable body 100 to the target position, while the positioning block 210 inside the connecting sleeve 220 is aligned with the entrance of the limiting groove 102, and after releasing the tension, the connecting sleeve 220 is tightly clamped on the surface of the cable through the elastic restoring force of the connecting sleeve 220 itself, and at the same time, the positioning block 210 is embedded in the inside of the limiting groove 102, forming double limiting in the radial and circumferential directions;

[0059] Step three, when the charging gun 120 moves, the cable body 100 moves under the action of tension, driving the protective assembly 200 to move synchronously, and the long strip-shaped suction cup 230 slides on the ground;

[0060] Step four, when the charging gun 120 stops moving, the long strip-shaped suction cup 230 is attached to the ground under the action of gravity and is adsorbed and fixed to the ground;

[0061] Step five, after pulling out the charging gun 120, the curved cable body 100, and the long strip-shaped suction cups 230 of the adjacent protective assemblies 200 are close to each other in the bending process, at this time, the outer surface of one of the long strip-shaped suction cups 230 is inserted between the other two long strip-shaped suction cups 230, forming a three-point interlocking, ensuring that the coiled cable will not be spontaneously loosened;

[0062] In summary, the working process of the present application is as follows:

[0063] Firstly, according to the wear risk area of the cable body 100, a plurality of protective assemblies 200 are installed on the outer surface of the cable body 100 through detachable sleeve connection;

[0064] When charging, the charging gun 120 is removed from the electric charging pile 110 and moved, and the cable body 100 is dragged on the ground at this time, the long strip-shaped suction cup 230 of the protective assembly 200 will slide on the ground, so that the cable body 100 will not directly contact and rub with the ground, and the surface of the cable body 100 can be protected;

[0065] During the charging process, the cable body 100 will stop moving, at this time, the long strip-shaped suction cup 230 will be attached to the ground and gradually adsorbed to the ground, so that the cable body 100 is fixed on the ground to avoid sliding randomly;

[0066] As shown in Figure 6 , Figure 7 After the charging is completed, the cable body 100 is started to be wound, at this time, the curved cable body 100 is made to abut against each other with the long strip-shaped suction cups 230 of the adjacent protection assemblies 200, and the outer surface of one long strip-shaped suction cup 230 is inserted between the other two long strip-shaped suction cups 230, forming a three-point interlocking structure, which can ensure that the cable is curved according to the specified radius and reduce the damage of the internal battery 101 due to excessive bending.

[0067] The above shows and describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only preferred examples of the present application and are not intended to limit the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. An electric vehicle charging pile cable, comprising a cable main body (100), the cable main body (100) is fixedly connected with an electric charging pile (110) at the end, and a charging gun (120) is fixedly connected to the end of the cable main body (100) away from the electric charging pile (110), characterized in that: The cable body (100) is detachably sleeved with a plurality of protection assemblies (200), and the protection assembly (200) comprises an elongated suction cup (230); In the use state, the bottom surface of the elongated suction cup (230) is in adsorption fixation with the contact surface, the displacement of the cable body (100) is limited by the adsorption force, and the dragging friction force is transferred to the protection assembly (200); In the storage state, the elongated suction cups (230) of adjacent protection assemblies (200) are positioned against each other, the elongated suction cups (230) are abutted to assist the winding and bending of the cable body (100), so that the cable body (100) is in a rolled storage state; The protection assembly (200) comprises a connecting sleeve (220) sleeved on the surface of the cable body (100), the connecting sleeve (220) is in the form of a ring, the inner diameter of the connecting sleeve (220) is matched with the outer diameter of the cable body (100), and the connecting sleeve (220) is tightly sleeved on the outer surface of the cable body (100); The protection assembly (200) is in multiple groups and is arranged at intervals along the axial direction of the cable body (100), each group of protection assemblies (200) comprises a connecting sleeve (220) and an annular array of elongated suction cups (230); In the cable winding state, the elongated suction cups (230) of adjacent protection assemblies (200) are abutted against each other, and the outer surface of one of the elongated suction cups (230) is in three-point abutment with the outer surfaces of the other two elongated suction cups (230).

2. The cable for electric vehicle supply equipment according to claim 1, characterized in that: The elongated suction cup (230) is fixedly connected to the outer surface of the connecting sleeve (220), the adsorption end of the elongated suction cup (230) faces outward, and the elongated suction cup (230) is used for adsorption contact with the external contact surface.

3. The cable for electric vehicle supply equipment according to claim 1, wherein: The elongated suction cup (230) is in multiple groups, and the elongated suction cups (230) are arranged at equal angles and intervals in an annular array on the outer peripheral surface of the connecting sleeve (220).

4. The cable for electric vehicle supply equipment according to claim 1, characterized in that: The outer surface of the elongated suction cup (230) is provided with an anti-skid pattern (2301).

5. The cable for electric vehicle supply equipment according to claim 2, characterized in that: The connecting sleeve (220) is provided with an opening (2201) on the surface, so that the connecting sleeve (220) is in the form of a C-shaped ring structure, and the connecting sleeve (220) is made of thermoplastic elastomer TPE.

6. The cable for electric vehicle supply equipment according to claim 1, wherein: The cable body (100) is provided with a limiting groove (102) on the surface, and one end of the connecting sleeve (220) away from the elongated suction cup (230) is fixedly connected with a positioning block (210), and the surface of the positioning block (210) is in contact with the inner wall of the limiting groove (102).

7. The cable for electric vehicle supply equipment according to claim 1, wherein: The inner cavity of the cable body (100) is fixedly connected with an electric core (101).

8. A cable for electric vehicle supply equipment and a process for manufacturing the same according to any one of claims 1 to 7, characterized in that, The method comprises the following steps: Step one, a special forming die is arranged at the output end of the extruder, the die has a protruding structure matched with the limiting groove (102), and the outer surface of the cable body (100) is axially extended out of the limiting groove (102) through the extrusion process; Step two, apply tension to expand the opening (2201) of the connecting sleeve (220), temporarily increase the inner diameter, move the connecting sleeve (220) along the cable body (100) to the target position, and 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) tightens the cable surface through its own elastic restoring force, and at the same time the positioning block (210) is embedded in the limiting groove (102), forming radial and circumferential double limiting; Step three, when moving the charging gun (120), the cable body (100) is moved under tension, driving the protection assembly (200) to move synchronously, and the long strip suction cup (230) slides on the ground; Step four, 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 adsorbed on the ground; Step five, after pulling out the charging gun (120), bend the cable body (100), and the long strip suction cups (230) of adjacent protection assemblies (200) approach each other during the bending process. At this time, insert the outer surface of one long strip suction cup (230) between the other two long strip suction cups (230) to form a three-point interlocking to ensure that the coiled cable does not spontaneously loosen.

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