Flexible cable for new energy automobile

Abstract

The utility model relates to the technical field of cables, and discloses a flexible cable for a new energy automobile, which comprises a cable core assembly and an outer protective layer wrapped outside the cable core assembly, a flexible support for isolating the cable core assembly is arranged in the outer protective layer, the cable core assembly is annularly arrayed in the flexible support, and the cable core assembly is arranged in the outer protective layer. And an extrusion hole is formed in the axis of the flexible bracket. According to the cable, the flexible support with the extrusion hole is arranged, the cable core assembly is isolated, the bendability of the cable is improved through the extrusion hole, when the cable is bent, the extrusion hole can provide a bending space for bending of the cable, the middle of the cable is arranged to be of a hollow structure, and the bending performance of the cable can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cables, and in particular to a flexible cable for new energy vehicles. Background Art

[0002] Traditional automotive cables are not very ideal in terms of softness, flame retardancy and signal transmission stability. Due to the limited space of the automotive connection device, the bending radius of the cable is required to be high, which requires the cable to be more flexible. Traditional automotive cables can no longer meet the needs of customers. At the installation site, the cables are often too hard and difficult to bend, which affects production efficiency during the vehicle assembly process and may even make them impossible to install. Conventional means require the cable to be bent in advance before it can be successfully installed on the vehicle. To address the above problems, the present application provides a flexible cable that is easy to bend and plastic, and does not require the cable to be bent, thereby improving the efficiency of vehicle assembly. Summary of the invention

[0003] In view of this, the purpose of the utility model is to provide a flexible cable for new energy vehicles, so that it can solve the problem of difficulty in vehicle assembly caused by the high bending radius of the cable.

[0004] The utility model solves the above technical problems through the following technical means:

[0005] A flexible cable for new energy vehicles comprises a cable core assembly and an outer protective layer wrapped around the cable core assembly, a flexible bracket for isolating the cable core assembly is arranged inside the outer protective layer, the cable core assembly is annularly arrayed inside the flexible bracket, and an extrusion hole is arranged at the axis of the flexible bracket.

[0006] In the present application, a flexible bracket with an extrusion hole is provided. While ensuring the isolation of the cable core assembly, the bendability of the cable is increased through the extrusion hole. When the cable is bent, the extrusion hole can provide a bending space for the cable, and the middle part of the cable is set as a hollow structure, which can improve the bending performance of the cable.

[0007] According to a preferred embodiment, the extrusion hole is a concave polygonal hole, any one side of the concave polygon is an arc, and a warning groove is provided at the connection between two adjacent sides of the extrusion hole on the outer protective layer.

[0008] In the present application, the edge of the extrusion hole is set to an arc shape, so that the cable has higher deformation performance at the arc, and a warning groove is set at the connection with strong force performance. When in use, you only need to bend around the warning groove, which is very practical.

[0009] According to a preferred embodiment, a reserved hole for setting the cable core assembly is opened on the flexible bracket, and the reserved hole is a fan-shaped hole. The cable core assembly includes a sealing layer whose shape matches the reserved hole, an elliptical flame-retardant layer is arranged in the sealing layer, a filling layer is arranged between the flame-retardant layer and the sealing layer, a conductive core is arranged in the flame-retardant layer, and an insulating layer is arranged outside the conductive core.

[0010] In the present application, a flame retardant layer, an insulating layer, a sealing layer and a filling layer are provided to ensure the fire prevention, insulation, sealing and shape retention performance of the cable.

[0011] According to a preferred embodiment, arc chamfers are provided at the connection points between adjacent surfaces of the reserved holes.

[0012] In the present application, the connection of the reserved hole is chamfered to reduce the stress performance of the connection, so that the cable has higher bending performance.

[0013] According to a preferred embodiment, an armor layer is embedded in the outer protective layer.

[0014] In the present application, an armor layer is embedded in the outer protective layer to prevent the cable from breaking.

[0015] According to a preferred embodiment, the armor layer is a metal woven mesh structure.

[0016] In the present application, a practical metal braided mesh structure is used as an armor layer, which can prevent the cable from breaking due to tension, and the armor layer is deformable and will not increase the bending resistance of the cable.

[0017] Beneficial effects of the utility model:

[0018] 1. In the present application, a flexible bracket with an extrusion hole is provided. While ensuring the isolation of the cable core assembly, the bendability of the cable is increased through the extrusion hole. When the cable is bent, the extrusion hole can provide a bending space for the cable, and the middle part of the cable is set as a hollow structure, which can improve the bending performance of the cable.

[0019] 2. In the present application, the edge of the extrusion hole is set to an arc shape, so that the cable has higher deformation performance at the arc, and a warning groove is set at the connection with strong force performance. When in use, you only need to bend around the warning groove, which is very practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the utility model cable;

[0021] Figure 2 is a cross-sectional schematic diagram of the practical cable;

[0022] in,

[0023] 10. Cable core assembly; 11. First sealing layer; 12. Flame retardant layer; 13. Conductive core; 14. Insulation layer; 15. Filling layer;

[0024] 20. Outer protective layer; 21. Warning slot;

[0025] 30. Flexible bracket; 31. Extrusion hole; 32. Reserved hole. DETAILED DESCRIPTION

[0026] The following describes the implementation of the present invention through specific embodiments. Those skilled in the art can understand the advantages and effects of the present invention from the contents disclosed in this specification. It should be noted that the illustrations provided in the following embodiments are only for exemplary descriptions, and they are only schematic diagrams, not physical diagrams, and cannot be understood as limitations on the present invention. In order to better illustrate the embodiments of the present invention, some parts in the figures may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the figures may be omitted.

[0027] The same or similar numbers in the figures of the embodiments of the present invention correspond to the same or similar parts. In the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "front", "back", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the figures, they are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the figures are only used for illustrative purposes and cannot be understood as limitations on the present invention. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0028] like Figure 1-2 As shown, the present application provides a flexible cable for new energy vehicles. The cable includes a cable core assembly 10 and an outer protective layer wrapped around the cable core assembly 10. A flexible bracket 30 for isolating the cable core assembly 10 is provided in the outer protective layer 20. The cable core assembly 10 is arranged in a circular array in the flexible bracket 30. An extrusion hole 31 is provided at the axis of the flexible bracket 30. The extrusion hole 31 is used to provide deformation space to the cable core assembly 10 when any cable core assembly 10 is subjected to pressure, thereby improving the flexibility of the cable and facilitating deformation, so as to reduce the bending radius of the cable.

[0029] The extrusion hole 31 can be a regular polygon structure. The extrusion hole 31 in the present application is set as a concave polygon hole. Any side of the concave polygon is an arc. The arc is concave inward, and a warning groove 21 is provided at the connection of two adjacent sides of the extrusion hole 31 on the outer protective layer 20. In the present application, compared with the traditional regular polygon structure, the present application uses an arc to form the side of the extrusion hole 31, so that the cable has higher deformation performance at the arc, and has higher bending ability and bending space in the arc segment compared with the regular polygon structure, which makes the cable have higher flexibility, so as to reduce the bending radius of the cable. Of course, the present application has a stronger bending resistance than the regular polygon at the connection of the two adjacent arcs, which is not suitable for the bending of the cable. Therefore, the present application is provided with a warning groove 21 at the connection of the two adjacent sides of the extrusion hole 31 on the outer protective layer 20. The warning groove 21 runs through the cable along the length direction of the cable. The warning groove 21 is used to remind that when using it, do not bend the warning groove 21, and use the arc surface without the warning groove 21 for bending. Preferably, the number of sides of the concave polygonal hole is preferably an even number and is evenly distributed, so that the two opposite arcs can correspond to the inner side and the outer side during bending, which facilitates the bending of the cable.

[0030] The flexible bracket 30 is provided with a reserved hole 32 for the cable core assembly 10 to pass through. The reserved hole 32 is a fan-shaped hole. The cable core assembly 10 includes a first sealing layer 11 whose shape matches the reserved hole 32. An elliptical flame retardant layer 12 is arranged in the first sealing layer 11. A filling layer 15 is arranged between the flame retardant layer 12 and the first sealing layer 11. A conductive core 13 is arranged in the flame retardant layer 12. An insulating layer 14 is arranged outside the conductive core. In the present application, structures such as the flame retardant layer 12 and the first sealing layer 11 are arranged outside the conductive core 13 to ensure the fireproof and sealing functions of the cable. Preferably, in the present application, two conductive cores 13 are arranged in the flame retardant layer 12. The flame retardant layer 12 is set to a matching elliptical structure. The bending performance of the conductive core 13 is improved by reducing the cross-sectional area of ​​a single conductive core 13, thereby reducing the bending radius.

[0031] In order to improve the bending performance of the cable, the connection between the adjacent surfaces of the reserved hole 32 in the present application is provided with an arc chamfer to reduce the force performance and assist in improving the bending performance of the cable. An armor layer is embedded in the outer protective layer 20. The armor layer is used to improve the anti-fracture performance of the cable. Preferably, in order to reduce the bending resistance of the armor layer, the present application sets the armor layer as a metal braided mesh structure, thereby improving the connection performance while ensuring a certain bending deformation ability.

[0032] The above embodiments are only used to illustrate the technical solution of the utility model and are not intended to limit it. Although the utility model is described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model. The technology, shape, and structure that are not described in detail in the utility model are all well-known technologies.

Claims

1. A flexible cable for new energy vehicles, characterized in that: The invention comprises a cable core assembly (10) and an outer protective layer (20) wrapped around the cable core assembly (10); a flexible support (30) is arranged inside the outer protective layer (20) for isolating the cable core assembly (10); the cable core assembly (10) is arranged in an annular array inside the flexible support (30); and an extrusion hole (31) is arranged at the axis of the flexible support (30).

2. The flexible cable for new energy vehicles according to claim 1, characterized in that: The extrusion hole (31) is an inwardly concave polygonal hole, any one side of the inwardly concave polygon is an arc line, and the arc line is concave inwardly, and a warning groove (21) is provided at the connection between two adjacent sides of the extrusion hole (31) on the outer protective layer (20).

3. The flexible cable for new energy vehicles according to claim 2, characterized in that: The flexible bracket (30) is provided with a reserved hole (32) for setting the cable core assembly (10), the reserved hole (32) is a fan-shaped hole, the cable core assembly (10) comprises a first sealing layer (11) whose shape matches the reserved hole (32), an elliptical flame retardant layer (12) is arranged in the first sealing layer (11), a filling layer (15) is arranged between the flame retardant layer (12) and the first sealing layer (11), a conductive core (13) is arranged in the flame retardant layer (12), and an insulating layer (14) is arranged outside the conductive core (13).

4. The flexible cable for new energy vehicles according to claim 3, characterized in that: The connection between adjacent surfaces of the reserved hole (32) is provided with an arc chamfer.

5. The flexible cable for new energy vehicles according to claim 1, characterized in that: An armor layer is embedded in the outer protective layer (20).

6. The flexible cable for new energy vehicles according to claim 5, characterized in that: The armor layer is a metal woven mesh structure.

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