New energy electric vehicle charging pile flat cable

Abstract

The utility model belongs to the technical field of flat cables, particularly relates to a flat cable for a charging pile of a new energy electric vehicle, and provides the following scheme aiming at the problems that the flat cable used by the charging pile of the new energy electric vehicle is insufficient in overall structural strength and is easily damaged by mechanical damage in the long-term use process: the flat cable comprises a flat protective sleeve, corresponding thick cables are fixedly arranged in a row of first mounting holes of the flat protective sleeve, the central main body of each thick cable is three thin cables which are arranged in an annular array, and the space among the three thin cables is uniformly filled with filler used for maintaining the roundness of the cable structure. According to the utility model, through the design of the armor layer and the tensile strength enhancing assembly, the mechanical strength of the cable is significantly enhanced, the service life of the cable is prolonged, and through the design of the inner sheath and the outer sheath made of polyurethane material and the filler, the cable has good wear resistance, weather resistance and corrosion resistance, and the service life of the cable is prolonged. And the device can adapt to various severe use environments.

Description

Technical Field

[0001] The utility model relates to the technical field of flat cables, in particular to a flat cable for a new energy electric vehicle charging pile. Background Art

[0002] The flat cable for a new energy electric vehicle charging pile is a cable designed specifically for charging electric vehicles. It has a flat shape, which is convenient for installation and wiring. This cable is usually composed of multiple strands of fine copper wires, and the outer layer is wrapped with insulating materials and protective layers to ensure electrical safety and durability. At present, during the long-term use of the flat cable used in new energy electric vehicle charging piles, there is still a problem that the overall structural strength is insufficient, and it is easily damaged by mechanical damage.

[0003] In view of the above problems, the present utility model document proposes a flat cable for a new energy electric vehicle charging pile. Content of the Utility Model

[0004] The utility model provides a flat cable for a new energy electric vehicle charging pile, which solves the defect that in the prior art, during the long-term use of the flat cable used in new energy electric vehicle charging piles, the overall structural strength is still insufficient, and it is easily damaged by mechanical damage.

[0005] The utility model provides the following technical solutions:

[0006] A flat cable for a new energy electric vehicle charging pile, comprising:

[0007] A flat protective sleeve, in a row of first mounting holes of the flat protective sleeve, a corresponding thick cable is fixedly arranged. The central main body of the thick cable is three thin cables arranged in an annular array. Between the three thin cables, a filler for maintaining the roundness of the cable structure is evenly filled. The thin cable is sequentially composed of a conductive core wire, a shielding layer, and an insulating layer from the inside to the outside. On the outer wall of the filler, a tape, an inner sheath, an armor layer, and an outer sheath are sequentially wrapped from the inside to the outside;

[0008] A tensile strength enhancing component, which is arranged in the flat protective sleeve and is used to improve the tensile strength of the flat cable, thereby improving its service life.

[0009] In a possible design, the tensile strength enhancing component includes tensile steel wires symmetrically arranged in the flat protective sleeve, and in the flat protective sleeve, there are second mounting holes for the corresponding tensile steel wires to pass through.

[0010] In a possible design, on the top and bottom of the outer wall of the flat protective sleeve, there are a plurality of stress grooves for improving the anti-bending performance.

[0011] In a possible design, the conductive core wire is made of multiple strands of oxygen-free copper wires with silver-plated surfaces twisted together.

[0012] In a possible design, the shielding layer is made of a composite material of copper foil and polyester film.

[0013] In a possible design, the insulating layer is made of polyimide material.

[0014] In a possible design, the armor layer is formed by stranding multiple fine steel wires around the outer wall of the inner sheath.

[0015] In a possible design, both the inner sheath and the outer sheath are made of polyurethane material.

[0016] It should be understood that the above general description and the following detailed description are only exemplary and do not limit the present utility model.

[0017] The present utility model has the following beneficial effects:

[0018] Excellent electrical performance: By adopting a conductive core wire made of multiple fine silver-plated oxygen-free copper wires stranded together and a shielding layer made of a composite material of copper foil and polyester film, the electrical performance of the cable is significantly improved, ensuring stable power supply for the charging pile.

[0019] Strong mechanical performance: Through the design of the armor layer and the tensile strength enhancement component, the mechanical strength of the cable is significantly enhanced, enabling it to resist external tensile and compressive forces and extending the service life of the cable.

[0020] Good durability: By adopting the design of the inner sheath, outer sheath and filler made of polyurethane material, the cable has good wear resistance, weather resistance and corrosion resistance, and can adapt to various harsh usage environments.

[0021] High anti-bending performance: By setting multiple stress grooves, the anti-bending performance of the cable is significantly improved, reducing possible damage to the cable during the bending process. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a cross-sectional view of a flat cable for a new energy electric vehicle charging pile provided by an embodiment of the present utility model;

[0023] Figure 2 It is a schematic structural diagram of a flat protective sleeve of a flat cable for a new energy electric vehicle charging pile provided by an embodiment of the present utility model;

[0024] Figure 3 It is a schematic structural diagram of a thick cable of a flat cable for a new energy electric vehicle charging pile provided by an embodiment of the present utility model;

[0025] Figure 4 It is a schematic structural diagram of a thin cable of a flat cable for a new energy electric vehicle charging pile provided by an embodiment of the present utility model.

[0026] Reference Numerals: 1, flat protective sleeve; 2, first mounting hole; 3, thick cable; 4, thin cable; 5, filler; 6, binding tape; 7, inner sheath; 8, armor layer; 9, outer sheath; 10, conductive core wire; 11, shielding layer; 12, insulating layer; 13, second mounting hole; 14, tensile steel wire; 15, stress groove. Detailed Embodiment

[0027] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to 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. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0028] In the description of the present invention, it should be understood that the terms "opening", "upper", "middle", "length", "inner", etc. indicating the orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention.

[0029] To keep the following description of the embodiments of the present invention clear and concise, the detailed description of known functions and known components is omitted in the present invention.

[0030] Embodiment 1

[0031] Please refer to Figures 1-4 , a flat cable, which has excellent tensile strength, bending resistance and electrical performance, and is particularly suitable for the power supply requirements of electric vehicle charging piles, including:

[0032] A flat protective sleeve 1, in which a row of first mounting holes 2 are provided for fixing the thick cable 3. The central body of the thick cable 3 is composed of three thin cables 4 arranged in a circular array. A filler 5 for maintaining the roundness of the cable structure is filled between the thin cables 4 to prevent the cable from deforming when bent or stretched;

[0033] The thin cable 4 is successively wrapped from the inside to the outside by a conductive core wire 10, a shielding layer 11 and an insulating layer 12. The conductive core wire 10 is made of multiple silver-plated oxygen-free copper wires stranded together, providing excellent electrical conductivity. The shielding layer 11 is made of a composite material of copper foil and polyester film, effectively preventing electromagnetic interference and improving the electrical performance of the cable. The insulating layer 12 is made of polyimide material, ensuring the electrical safety of the cable and preventing leakage and short circuit;

[0034] The outer wall of the filler 5 is successively wrapped with a binding tape 6, an inner sheath 7, an armor layer 8, and an outer sheath 9 from the inside to the outside. The binding tape 6 is used to fix and support the internal structure of the cable. Both the inner sheath 7 and the outer sheath 9 are made of polyurethane material, which has excellent wear resistance, weather resistance, and corrosion resistance. The armor layer 8 is formed by stranding multiple fine steel wires around the outer wall of the inner sheath 7, enhancing the mechanical strength of the cable and improving the tensile and compressive resistance of the cable;

[0035] The tensile strength enhancement component includes tensile steel wires 14 symmetrically arranged in the flat protective sleeve 1. The flat protective sleeve 1 is provided with second mounting holes 13 for the corresponding tensile steel wires 14 to pass through. The setting of the tensile steel wires 14 significantly improves the tensile strength of the cable, thereby extending the service life of the cable.

[0036] This application can be used for new energy electric vehicle charging piles or other fields applicable to this application.

[0037] Embodiment 2

[0038] On the basis of Embodiment 1, an improvement is made: A flat cable for a new energy electric vehicle charging pile,

[0039] Please refer to Figures 1-2 , and a plurality of stress grooves 15 are provided at the top and bottom of the outer wall of the flat protective sleeve 1, which can disperse the stress generated when the cable is bent and improve the anti-bending performance of the cable.

[0040] The above is only the specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model can easily think of changes or substitutions, which should all be covered within the protection scope of the present utility model; without conflict, the embodiments of the present utility model and the features in the embodiments can be combined with each other. Therefore, the protection scope of the present utility model should be subject to the protection scope of the claims.

Claims

1. A new energy electric vehicle charging pile flat cable, characterized in that: include: A flat protective cover (1), wherein a row of first mounting holes (2) of the flat protective cover (1) are fixedly provided with corresponding thick cables (3), the central body of the thick cable (3) is three thin cables (4) arranged in a ring array, and a filler (5) for maintaining the roundness of the cable structure is evenly filled between the three thin cables (4), the thin cables (4) are composed of a conductive core wire (10), a shielding layer (11) and an insulating layer (12) wrapped in sequence from the inside to the outside, and the outer wall of the filler (5) is wrapped in sequence from the inside to the outside with a wrapping tape (6), an inner sheath (7), an armor layer (8) and an outer sheath (9); The tensile strength enhancing component is arranged in the flat protective cover (1) and is used to enhance the tensile strength of the flat cable, thereby enhancing its service life.

2. A new energy electric vehicle charging pile flat cable according to claim 1, characterized in that: The tensile strength enhancement component comprises tensile steel wires (14) symmetrically arranged in a flat protective sleeve (1), and a second mounting hole (13) for the tensile steel wires (14) to pass through is provided in the flat protective sleeve (1).

3. A new energy electric vehicle charging pile flat cable according to claim 1, characterized in that: The top and bottom of the outer wall of the flat protective sleeve (1) are both provided with a plurality of stress grooves (15) for improving the anti-bending performance.

4. A new energy electric vehicle charging pile flat cable according to claim 1, characterized in that: The conductive core wire (10) is formed by twisting a plurality of oxygen-free copper wires with silver-plated surfaces.

5. A new energy electric vehicle charging pile flat cable according to claim 1, characterized in that: The insulating layer (12) is made of polyimide.

6. A new energy electric vehicle charging pile flat cable according to claim 1, characterized in that: The armor layer (8) is formed by twisting a plurality of thin steel wires around the outer wall of the inner sheath (7).

7. A new energy electric vehicle charging pile flat cable according to claim 1, characterized in that: The inner sheath (7) and the outer sheath (9) are both made of polyurethane.

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