Flexible charging pile cable

Abstract

The utility model discloses a flexible charging pile cable, which comprises a cable core, the cable core comprises a power wire core and a control wire core, the power wire core and the control wire core are respectively composed of an inner sheath and a conductor, the inner sheath wraps the outside of the conductor, the outside of the cable core is provided with an inner lining layer, the inner lining layer and the cable core are fixed in an extrusion manner, and the inner lining layer and the cable core are fixed in an extrusion manner. A flexible armor layer is arranged outside the lining layer, the flexible armor layer is composed of a metal wire armor layer, an elastic layer and a metal belt armor layer, a flexible outer sheath is arranged outside the flexible armor layer, and the flexible outer sheath is composed of a reinforcing layer, an outer protection layer and an outer coating layer. The overall flexibility of the charging pile cable is improved under the condition that the strength of the charging pile cable is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of charging pile cables, in particular to a flexible charging pile cable. Background Art

[0002] Charging pile cable is a conductor used to connect the charging pile to the power source. It has the functions of transmitting electrical energy and ensuring charging safety. It can realize functions such as battery charging and battery management, and effectively ensure the stability and safety of the charging pile, ensuring the normal use of electric vehicles. Charging pile cables are usually composed of conductors, insulation layers, shielding layers, sheaths and other parts. These parts together constitute the basic structure of the cable. Charging pile cables are an indispensable part of the electric vehicle charging system. Their performance and quality directly affect the charging effect and safety of electric vehicles.

[0003] For example, the Chinese authorized patent "A Charging Pile Cable" with announcement number CN216928134U includes a cable body, a protective cover is provided on the outer surface of the cable body, a corrosion-resistant layer is provided on the outer surface of the protective cover, a fire-proof layer is provided on the outside of the corrosion-resistant layer, and a plurality of elastic blocks are provided between the fire-proof layer and the corrosion-resistant layer. The plurality of elastic blocks are circumferentially distributed on the outer surface of the corrosion-resistant layer, and each elastic block has two opposite arc-shaped side walls. The corrosion-resistant layer is provided to increase the corrosion resistance of the cable body, and a plurality of elastic blocks are provided between the fire-proof layer and the corrosion-resistant layer.

[0004] Although the above-mentioned prior art has certain flexibility, the use of more elastic blocks will cause the cable's softness to decrease, and more difficulties may be encountered during the installation and wiring process. Since the cable is relatively hard and difficult to bend and lay, it may take more time and manpower to complete the installation work, and it may limit the parking location and charging method of electric vehicles, making the charging process inconvenient, so it does not meet the existing needs. In this regard, we propose a flexible charging pile cable. Utility Model Content

[0005] The purpose of the utility model is to provide a flexible charging pile cable to solve the problem of how to improve the flexibility of the charging pile cable while ensuring its own strength, as proposed in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a flexible charging pile cable, comprising a cable core, the cable core comprising a power line core and a control line core, the power line core and the control line core are both composed of an inner sheath and a conductor, and the inner sheath is wrapped around the outside of the conductor, an inner lining layer is provided on the outside of the cable core, and the inner lining layer is extruded and fixed to the cable core, a flexible armor layer is provided on the outside of the inner lining layer, the flexible armor layer is composed of a metal wire armor layer, an elastic layer and a metal tape armor layer, a flexible outer sheath is provided on the outside of the flexible armor layer, and the flexible outer sheath is composed of a reinforcement layer, an outer sheath and an outer coating layer.

[0007] Preferably, the inner sheath consists of an insulating layer and a shielding layer, the insulating layer is extruded and wrapped on the outer wall of the conductor, and the shielding layer is spirally wrapped on the outside of the insulating layer.

[0008] Preferably, the conductor is formed by twisting a plurality of copper alloy monofilaments.

[0009] Preferably, the inner lining layer is made of polyvinyl chloride and has a thickness of 0.5-1 mm.

[0010] Preferably, the metal wire armor layer is woven with stainless steel wire and spirally wound on the outer wall of the lining layer, the elastic layer is located on the outer wall of the metal wire armor layer, and the elastic layer and the metal wire armor layer are extruded, and the metal belt armor layer is spirally wound on the outside of the elastic layer.

[0011] Preferably, the reinforcement layer is wrapped around the outside of the flexible armor layer by weaving, the outer protective layer is wrapped around the outside of the reinforcement layer by extrusion, and the outer coating layer is coated on the outer wall of the outer protective layer.

[0012] Preferably, the diameter of the metal wire armor layer is between 0.2-0.5 mm, and the thickness of the elastic layer is 1-2 mm.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The utility model is provided with a flexible armor layer, an inner metal wire armor and an intermediate elastic layer, so that the cable can maintain sufficient mechanical protection while still maintaining high flexibility and bending performance, which is convenient for installation and wiring in various complex environments. The outer metal belt armor provides strong mechanical protection capabilities and can effectively prevent the cable from being damaged by external mechanical forces during installation and use. The design of the composite flexible armor layer can reduce the electrical performance changes of the cable during bending and stretching, ensuring the stability and reliability of the cable when transmitting electricity.

[0015] 2. The utility model is provided with a flexible outer sheath, and the reinforcement layer is made of high-strength and high-elastic fiber material, which effectively enhances the mechanical strength and wear resistance of the cable, and improves the tensile and impact resistance of the cable. The outer sheath is made of wear-resistant and corrosion-resistant materials, and is coated with a special UV-resistant and anti-aging coating to ensure that the cable can maintain a stable working state in various complex environments and extend its service life.

[0016] 3. The utility model adopts flexible materials as the insulating layer and shielding layer of the conductor. The insulating layer is a thermoplastic elastomer TPE insulating material with good elasticity and softness, which enables the cable to quickly return to its original state after being stressed, thereby maintaining its softness and flexibility. The shielding layer adopts aluminum foil, which is thinner and lighter than other metal shielding materials, making the cable more flexible and convenient during wiring and installation, and can easily adapt to various complex wiring rings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional diagram of the utility model;

[0018] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0019] Figure 3 It is a three-dimensional diagram of the power core and the control core of the utility model;

[0020] Figure 4 This is a schematic diagram of the flexible armor layer structure of the utility model;

[0021] Figure 5 This is a schematic diagram of the flexible outer sheath structure of the utility model.

[0022] In the figure: 1. Cable core; 2. Power line core; 3. Control line core; 4. Inner lining layer; 5. Flexible armor layer; 6. Flexible outer sheath; 7. Inner sheath; 8. Conductor; 9. Insulation layer; 10. Shielding layer; 11. Metal wire armor layer; 12. Elastic layer; 13. Metal tape armor layer; 14. Reinforcement layer; 15. Outer sheath; 16. Outer coating layer. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] See also Figure 1-5The utility model provides an embodiment: a flexible charging pile cable, including a cable core 1, the cable core 1 includes a power line core 2 and a control line core 3, the power line core 2 and the control line core 3 are both composed of an inner sheath 7 and a conductor 8, and the inner sheath 7 is wrapped around the outside of the conductor 8, an inner lining layer 4 is provided on the outside of the cable core 1, and the inner lining layer 4 is extruded and fixed to the cable core 1, a flexible armor layer 5 is provided on the outside of the inner lining layer 4, the flexible armor layer 5 is composed of a metal wire armor layer 11, an elastic layer 12 and a metal tape armor layer 13, a flexible outer sheath 6 is provided on the outside of the flexible armor layer 5, and the flexible outer sheath 6 is composed of a reinforcement layer 14, an outer sheath 15 and an outer coating 16.

[0025] The composite flexible armor layer 5 maintains the high flexibility and mechanical protection performance of the cable while also having good corrosion resistance and electrical performance stability, and has high practicality and adaptability. The flexible outer sheath 6 maintains the softness of the cable while providing strong mechanical protection and excellent environmental adaptability, and can meet the use requirements of charging pile cables in various complex environments.

[0026] See also Figure 2 and Figure 3 The inner sheath 7 is composed of an insulating layer 9 and a shielding layer 10. The insulating layer 9 is extruded and wrapped on the outer wall of the conductor 8, and the shielding layer 10 is spirally wrapped on the outside of the insulating layer 9. The insulating layer 9 is a thermoplastic elastomer TPE insulating material with good elasticity and softness, which enables the cable to quickly return to its original state after being stressed, thereby maintaining its softness and flexibility, and can maintain softness at low temperatures, and is not easy to harden or brittle; at the same time, it can also maintain stability in a high temperature environment, and will not affect the softness of the cable due to thermal deformation; the shielding layer 10 is aluminum foil, which is thinner and lighter than other metal shielding materials, making the cable more flexible and convenient during wiring and installation, and can easily adapt to various complex wiring environments, with excellent bending and folding performance, can easily adapt to cables of different shapes and sizes, and attached to the carrier to increase strength while maintaining its softness. This design allows the aluminum foil shielding layer to protect the cable from electromagnetic interference without increasing the hardness and weight of the cable.

[0027] See also Figure 3 The conductor 8 is formed by twisting a plurality of copper alloy monofilaments and is responsible for the transmission of electric power while ensuring the flexibility and conductivity of the cable.

[0028] See also Figure 1 and Figure 2 The inner lining layer 4 is made of polyvinyl chloride and has a thickness of 0.5-1 mm. The inner lining layer 4 is polyvinyl chloride and has good softness and corrosion resistance to protect the cable core from corrosion and damage.

[0029] See also Figure 4The metal wire armor layer 11 is woven with stainless steel wire and spirally wound on the outer wall of the inner lining layer 4. The elastic layer 12 is located on the outer wall of the metal wire armor layer 11, and the elastic layer 12 and the metal wire armor layer 11 are extruded. The metal belt armor layer 13 is spirally wound on the outside of the elastic layer 12. The metal wire armor layer 11 is woven with stainless steel wire with a diameter of 0.2-0.5mm, high tensile strength and good bending performance to provide preliminary mechanical protection; the elastic layer 12 is made of thermoplastic elastomer with a thickness of 1-2mm to provide additional softness and buffering effect. The metal belt armor layer 13 uses galvanized cold-rolled steel belt to provide stronger mechanical protection and prevent damage to the cable from the external environment.

[0030] See also Figure 5 The reinforcement layer 14 is wrapped around the outside of the flexible armor layer 5 by weaving, the outer sheath 15 is wrapped around the outside of the reinforcement layer 14 by extrusion, and the outer coating 16 is coated on the outer wall of the outer sheath 15. The reinforcement layer 14 is a high-strength and high-elasticity fiber material, which is wrapped around the outside of the flexible armor layer by weaving or winding to improve the mechanical strength and wear resistance of the cable; the outer sheath 15 is polyurethane, which has excellent wear resistance and corrosion resistance; the outer coating 16 is an anti-ultraviolet and anti-aging coating.

[0031] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A flexible charging pile cable, comprising a cable core (1), characterized in that: The cable core (1) comprises a power core (2) and a control core (3), wherein the power core (2) and the control core (3) are both composed of an inner sheath (7) and a conductor (8), wherein the inner sheath (7) is wrapped around the outside of the conductor (8), an inner lining layer (4) is provided on the outside of the cable core (1), and the inner lining layer (4) is fixed to the cable core (1) by extrusion, a flexible armor layer (5) is provided on the outside of the inner lining layer (4), wherein the flexible armor layer (5) is composed of a metal wire armor layer (11), an elastic layer (12) and a metal tape armor layer (13), and a flexible outer sheath (6) is provided on the outside of the flexible armor layer (5), wherein the flexible outer sheath (6) is composed of a reinforcement layer (14), an outer sheath (15) and an outer coating (16).

2. A flexible charging pile cable according to claim 1, characterized in that: The inner sheath (7) is composed of an insulating layer (9) and a shielding layer (10); the insulating layer (9) is extruded and wrapped on the outer wall of the conductor (8); and the shielding layer (10) is spirally wrapped on the outside of the insulating layer (9).

3. A flexible charging pile cable according to claim 1, characterized in that: The conductor (8) is formed by twisting a plurality of copper alloy monofilaments.

4. A flexible charging pile cable according to claim 1, characterized in that: The inner lining layer (4) is made of polyvinyl chloride and has a thickness of 0.5-1 mm.

5. A flexible charging pile cable according to claim 1, characterized in that: The metal wire armor layer (11) is woven from stainless steel wires and is spirally wound on the outer wall of the inner lining layer (4); the elastic layer (12) is located on the outer wall of the metal wire armor layer (11), and the elastic layer (12) and the metal wire armor layer (11) are extruded; and the metal tape armor layer (13) is spirally wound on the outside of the elastic layer (12).

6. A flexible charging pile cable according to claim 1, characterized in that: The reinforcement layer (14) is wrapped around the outside of the flexible armor layer (5) by weaving, the outer protective layer (15) is wrapped around the outside of the reinforcement layer (14) by extrusion, and the outer coating (16) is coated on the outer wall of the outer protective layer (15).

7. A flexible charging pile cable according to claim 5, characterized in that: The diameter of the metal wire armor layer (11) is between 0.2 and 0.5 mm, and the thickness of the elastic layer (12) is between 1 and 2 mm.

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