CN219997901U

CN219997901U - Fill electric pile cable

Info

Publication number: CN219997901U
Application number: CN202321101631.3U
Authority: CN
Inventors: 李松树; 何玉华
Original assignee: Tianjin Zhengbiao Jinda Cable Group Co ltd
Current assignee: Tianjin Zhengbiao Jinda Cable Group Co ltd
Priority date: 2023-05-10
Filing date: 2023-05-10
Publication date: 2023-11-10
Anticipated expiration: 2033-05-10

Abstract

The charging pile cable comprises a plurality of power wire cores, a control signal wire core, a grounding wire core, a tensile device, a filling layer, a fiber tensile layer, a slow release layer and an outer protective layer, wherein a cooling pipe is arranged in the middle of the power wire cores, and a conductor, a isolation belt and an insulating layer are arranged on the outer side of the cooling pipe from inside to outside; the control signal wire core comprises a plurality of signal wire cores, and a second shielding layer and an inner sheath which are wrapped on the outer sides of the signal wire cores; the grounding wire core comprises a grounding wire conductor and a third insulating layer surrounding the outer side of the grounding wire conductor, and the tensile device is positioned in the center of the cable. The cooling pipe is additionally arranged, so that the temperature rise of the cable during operation is effectively controlled; the design of the ground wire core is increased, the pressure resistance is further enhanced, the tensile buffer layer is increased, the cable is not easy to bend in the use process, the service life is prolonged, and the safety is improved.

Description

Fill electric pile cable

Technical Field

The utility model relates to the technical field of cables, in particular to a charging pile cable.

Background

Along with the continuous high-speed development of the economy in China, the holding capacity of the domestic electric automobile is continuously increased, the construction of the charging pile is greatly demanded, the defects of the charging pile cable are gradually exposed, the insulation heat resistance is poor, the friction resistance is poor, the power cable and the signal control cable are shielded relatively poor when being in the same cable, the stability of signal transmission cannot be ensured, and the like. The charging pile cable disclosed in the prior application number 201720897704.2 is light in weight, light and soft, convenient to move, capable of reducing damage to the cable caused by external stress by absorbing and dispersing stress, and capable of effectively protecting the wire core inside the cable. However, the cable does not design and protect an important ground wire in the charging pile cable, and the charging pile cable is easy to be dangerous at high temperature and easy to bend and damage, and the like, but the problems of the charging pile cable are not solved.

Disclosure of Invention

The utility model aims to solve the defects of the prior art, and provides a charging pile cable which solves the problems of design of a ground wire of the charging pile cable, heat dissipation and easiness in bending and damage.

The utility model adopts the following technical scheme to realize the aim:

the charging pile cable comprises a plurality of power wire cores, a control signal wire core, a grounding wire core, a tensile device, a filling layer, a fiber tensile layer, a slow release layer and an outer protective layer, wherein a cooling pipe is arranged in the middle of the power wire cores, and a conductor, a isolation belt and an insulating layer are arranged on the outer side of the cooling pipe from inside to outside;

the control signal wire core comprises a plurality of signal wire cores, a second shielding layer and an inner sheath, wherein the second shielding layer and the inner sheath are wrapped on the outer sides of the signal wire cores, the signal wire cores comprise signal conductors, and the shielding layer and the second insulating layer are wrapped on the outer sides of the signal conductors from inside to outside;

the grounding wire core comprises a grounding wire conductor and a third insulating layer surrounding the outer side of the grounding wire conductor, the tensile device is positioned in the center of the cable, and the tensile device is abutted against the outer sides of the power wire core, the control signal wire core and the grounding wire core;

the power wire core, the control signal wire core, the grounding wire core and the outer side of the tensile device are wrapped with a fiber tensile layer, a filling layer is arranged on the inner side of the fiber tensile layer, a slow release layer is wrapped on the outer side of the fiber tensile layer, and an outer protective layer is arranged on the outer side of the slow release layer.

The tensile device comprises a tensile core, a tensile buffer layer is wrapped outside the tensile core, and a flame retardant is added into the tensile buffer layer.

The beneficial effects of the utility model are as follows:

compared with the prior art, the cooling pipe is additionally arranged, so that the temperature rise of the cable during operation is effectively controlled; the design of the ground wire core is increased, the pressure resistance is further enhanced, the tensile buffer layer is increased, the cable is not easy to bend in the use process, the service life is prolonged, and the safety is improved.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

wherein: 1-a power wire core; 2-a control signal wire core; 3-grounding wire cores; 4-a tensile means; 11-cooling pipes; 12-conductors; 13-a separator; 14-an insulating layer; 21-a signal conductor; 22-a shielding layer; 23 a second insulating layer; 24-a second shielding layer; 25-an inner sheath; 31-a ground conductor; 32-a third insulating layer; 41-tensile core; 42-tensile buffer layer; 5-a filling layer; 6-a fiber tensile layer; 7-a slow release layer; 8-an outer sheath.

Detailed Description

The utility model is further illustrated by the following examples in conjunction with the accompanying drawings:

as shown in fig. 1, a charging pile cable comprises a plurality of power wire cores 1, a control signal wire core 2, a grounding wire core 3, a tensile device 4, a filling layer 5, a fiber tensile layer 6, a slow release layer 7 and an outer protective layer 8, wherein a cooling pipe 11 is arranged in the middle of the power wire cores 1, and a conductor 12, a separation belt 13 and an insulating layer 14 are arranged outside the cooling pipe 11 from inside to outside.

In this embodiment, the cooling pipe 11 can be filled with cooling liquid or cold water, and the heat generated by the cable is transferred into the cooling pipe, so that the temperature rise of the cable is effectively controlled, and the isolation belt 13 is made of a fire-resistant insulating material, and is made of a synthetic mica tape, so that the cable has excellent high temperature resistance and combustion resistance.

The control signal wire core 2 comprises a plurality of signal wire cores, a second shielding layer 24 and an inner sheath 25, wherein the second shielding layer 24 and the inner sheath 25 are wrapped on the outer sides of the signal wire cores, the signal wire cores comprise signal conductors 21, and the shielding layer 22 and the second insulating layer 23 are wrapped on the outer sides of the signal conductors 21 from inside to outside;

the shielding layer 22 is a copper wire braided shielding with the covering density being more than 90%, the diameter of a braided wire is more than 0.1mm, the second shielding layer 24 is a copper strip shielding, the average covering rate of the copper strip is not less than 15% of the width of the copper strip (nominal value), the embodiment is a multi-core cable, the average thickness of the copper strip is not less than 0.10mm, and the minimum thickness of the copper strip is not less than 90% of the nominal value.

The grounding wire core 3 comprises a grounding wire conductor 31 and a third insulating layer 32 surrounding the outer side of the grounding wire conductor 31, the tensile device 4 is positioned in the center of the cable, and the tensile device 4 is abutted against the outer sides of the power wire core 1, the control signal wire core 2 and the grounding wire core 3;

the tensile device 4 adopts Kevlar tensile fibers or TP ropes, so that the load-bearing tensile installation application requirements of the cable are ensured.

The power wire core 1, the control signal wire core 2, the grounding wire core 3 and the outer side of the tensile device 4 are wrapped with a fiber tensile layer 6, the inner side of the fiber tensile layer 6 is provided with a filling layer 5, the outer side of the fiber tensile layer 6 is wrapped with a slow release layer 7, and the outer side of the slow release layer 7 is provided with an outer protective layer 8.

The filling layer 5 is formed by processing recycled rubber, and is economical and environment-friendly.

The tensile device 4 comprises a tensile core 41, and a tensile buffer layer 42 is wrapped outside the tensile core 41. The buffer protection layer 4 adopts foamed polyethylene, hardly absorbs water and hardly permeates water vapor, cannot be wetted after long-term use in a humid environment, has high buffer shock absorption and shock resistance, and is added with a flame retardant.

While the utility model has been described above with reference to the accompanying drawings, it will be apparent that the utility model is not limited to the above embodiments, but is intended to cover various modifications, either made by the method concepts and technical solutions of the utility model, or applied directly to other applications without modification, within the scope of the utility model.

Claims

1. The charging pile cable is characterized by comprising a plurality of power wire cores (1), a control signal wire core (2), a grounding wire core (3), a tensile device (4), a filling layer (5), a fiber tensile layer (6), a slow release layer (7) and an outer protective layer (8), wherein a cooling pipe (11) is arranged in the middle of the power wire core (1), and a conductor (12), a separation belt (13) and an insulating layer (14) are arranged outside the cooling pipe (11) from inside to outside;

the control signal wire core (2) comprises a plurality of signal wire cores, a second shielding layer (24) and an inner sheath (25), wherein the second shielding layer (24) and the inner sheath (25) are wrapped on the outer sides of the signal wire cores, the signal wire cores comprise signal conductors (21), and the shielding layer (22) and the second insulating layer (23) are wrapped on the outer sides of the signal conductors (21) from inside to outside;

the grounding wire core (3) comprises a ground wire conductor (31) and a third insulating layer (32) surrounding the outer side of the ground wire conductor (31), the tensile device (4) is positioned in the center of the cable, and the tensile device (4) is tightly abutted to the outer sides of the power wire core (1), the control signal wire core (2) and the grounding wire core (3);

the novel cable comprises a power cable core (1), a control signal cable core (2), a grounding cable core (3) and a tensile device (4), wherein a fiber tensile layer (6) is wrapped outside the power cable core, a filling layer (5) is arranged on the inner side of the fiber tensile layer (6), a slow release layer (7) is wrapped outside the fiber tensile layer (6), and an outer protective layer (8) is arranged outside the slow release layer (7).

2. The charging pile cable according to claim 1, characterized in that the tensile device (4) comprises a tensile core (41), a tensile buffer layer (42) is wrapped outside the tensile core (41), and a flame retardant is added into the tensile buffer layer (42).