CN219610043U

CN219610043U - Charging cable for field machinery

Info

Publication number: CN219610043U
Application number: CN202320441804.XU
Authority: CN
Inventors: 卜晓华; 崔久德
Original assignee: Xinhongye Technology Hunan Co ltd
Current assignee: Xinhongye Technology Hunan Co ltd
Priority date: 2023-03-09
Filing date: 2023-03-09
Publication date: 2023-08-29
Anticipated expiration: 2033-03-09

Abstract

The utility model discloses a charging cable for field machinery, comprising: the cable core that is formed by stranding a ground wire and a plurality of power sinle silk and cladding in the restrictive coating in the cable core outside, power sinle silk, ground wire further include: the cable comprises a central conductor formed by twisting a plurality of strands and an insulating layer tightly coated on the outer side of the central conductor, wherein each strand is formed by twisting a plurality of monofilament conductors, and the twisting direction of the monofilament conductors is opposite to that of the strands. The central conductor of the functional wire core is obtained by processing the monofilament conductor for multiple times in a reverse composite twisting mode, so that the overall flexibility and bending resistance of the cable are improved, and the stability of various performances in a long-term field use process is ensured.

Description

Charging cable for field machinery

Technical Field

The utility model relates to the technical field of wires and cables, in particular to a charging cable applied to field machinery.

Background

The charging cable is widely applied to the field of new energy automobiles, and is mainly used for electric energy transmission between the charging pile and the new energy automobile. The engineering machinery such as a crane is electrified gradually, and a new energy battery arranged on the crane needs to be charged.

Because of the specificity of the use scene, the charging distance of field engineering machinery such as a crane is relatively long, a charging cable is required to be wound on a winding drum, and the cable is dragged during charging to realize long-distance charging. And higher requirements are put on various performances such as drag resistance, winding resistance, wear resistance and the like of the cable. The traditional charging cable is easy to cause cable surface breakage and cable conductor breakage under the application scene, so that the charging function is lost.

Therefore, developing a charging cable suitable for field engineering machinery such as a crane to charge equipment under severe use conditions becomes an urgent need of the industry.

Disclosure of Invention

The utility model aims to provide a charging cable for field machinery, which improves flexibility, toughness and bending resistance and ensures stability of various performances in a long-term field use process.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a charging cable for a field machine, comprising: the cable core that is formed by stranding a ground wire and a plurality of power sinle silk and cladding in the restrictive coating in the cable core outside, power sinle silk, ground wire all further include: the cable comprises a central conductor formed by twisting a plurality of strands and an insulating layer tightly coated on the outer side of the central conductor, wherein each strand is formed by twisting a plurality of monofilament conductors, and the twisting direction of the monofilament conductors is opposite to that of the strands.

The further improved scheme in the technical scheme is as follows:

1. in the above-mentioned scheme, 1 strand of 19 strands is arranged in the center, and another 6 strands are circumferentially arranged outside the strand located in the center, and the remaining 12 strands are circumferentially arranged outside the intermediate layer formed by 6 strands.

2. In the scheme, the monofilament conductor is a bare copper monofilament with the diameter of 0.08-0.20 mm.

3. In the above scheme, the insulating layer is a polyolefin insulating layer.

4. In the above scheme, the power wire core is provided with 3, and 3 the insulating layer colour of each of the power wire core is all different.

5. In the above scheme, the insulating layer of the ground wire has yellow/green double color, wherein the proportion of yellow is not less than 30% of the whole section.

Due to the application of the technical scheme, compared with the prior art, the utility model has the following advantages:

the utility model relates to a charging cable for field machinery, which comprises a power wire core and a ground wire, wherein the power wire core and the ground wire comprise the following components: the cable comprises a central conductor formed by twisting a plurality of strands and an insulating layer tightly coated on the outer side of the central conductor, wherein each strand is formed by twisting a plurality of monofilament conductors, the twisting direction of the monofilament conductors is opposite to that of the strands, and the central conductor of the functional cable core is obtained by processing the monofilament conductors in a multi-time and reverse composite twisting mode, so that the overall flexibility, toughness and bending resistance of the cable are improved, and the stability of various performances in a long-term field use process is ensured.

Drawings

FIG. 1 is a schematic diagram of a charging cable of a field machine according to the present utility model;

FIG. 2 is a schematic diagram of the structure of a power core in a charging cable of a field machine according to the present utility model;

fig. 3 is a schematic view of the structure of the ground wire in the charging cable of the field machine of the present utility model.

In the above figures: 1. a ground wire; 2. a power core; 3. a sheath layer; 4. a strand; 5. an insulating layer; 6. a monofilament conductor.

Description of the embodiments

The present patent will be further understood by the specific examples given below, which are not intended to be limiting.

Example 1: a charging cable for a field machine, comprising: the cable core formed by twisting a ground wire 1 and a plurality of power wire cores 2 with a certain twisting direction and pitch and a sheath layer 3 coated on the outer side of the cable core, wherein the power wire cores 2 and the ground wire 1 further comprise: the cable comprises a central conductor and an insulating layer 5, wherein the central conductor is formed by twisting a plurality of strands 4 with a certain twisting direction and pitch, the insulating layer is tightly coated on the outer side of the central conductor, each strand 4 is formed by twisting a plurality of monofilament conductors 6 with a certain twisting direction and pitch, and the twisting direction of the monofilament conductors 6 is opposite to the twisting direction of the strands 4.

1 strand 4 of the 19 strands 4 is arranged in the center, the other 6 strands 4 are circumferentially arranged outside the strand 4 positioned in the center, and the remaining 12 strands 4 are circumferentially arranged outside the intermediate layer formed by the 6 strands 4;

the monofilament conductor 5 is a bare copper monofilament with the diameter of 0.1mm, and the softness and bending resistance of the product are improved by adopting a process of repeatedly and reversely twisting the thinner bare copper conductor;

the insulating layer 5 is a polyolefin insulating layer, preferably irradiation crosslinked polyolefin with a temperature resistance grade of 125 ℃, and adopts a crosslinked polyolefin elastomer insulating material with a temperature resistance grade of 125 ℃ to improve the overload resistance of charging.

Example 2: a charging cable for a field machine, comprising: the cable core that is formed by twisting a ground wire 1 and a plurality of power sinle silk 2 with certain transposition direction and pitch and cladding in the restrictive coating 3 in the cable core outside, the oversheath adopts high strength, scratch-resistant polyurethane material, improves the life of product under complicated operating mode, power sinle silk 2, ground wire 1 further include: the cable comprises a central conductor and an insulating layer 5, wherein the central conductor is formed by twisting a plurality of strands 4 with a certain twisting direction and pitch, the insulating layer is tightly coated on the outer side of the central conductor, each strand 4 is formed by twisting a plurality of monofilament conductors 6 with a certain twisting direction and pitch, and the twisting direction of the monofilament conductors 6 is opposite to the twisting direction of the strands 4.

The monofilament conductor 5 is a bare copper monofilament with the diameter of 0.18 mm;

the power wire cores 2 are provided with 3, and the insulation layers 5 of the 3 power wire cores 2 are respectively red, blue and yellow and are used for identifying three phase lines;

the insulating layer 5 of the ground wire 1 described above has a yellow/green bi-color in which the proportion of yellow is not less than 30% of its entire cross section, for the purpose of distinguishing the ground wires and for the convenience of being able to see the bi-color at different positions.

When the charging cable for the field machine is adopted, the central conductor of the functional cable core is obtained by processing the monofilament conductor in a mode of repeated and reverse compound twisting, so that the overall flexibility, toughness and bending resistance of the cable are improved, and the stability of various performances in the long-term field use process is ensured.

The above embodiments are provided to illustrate the technical concept and features of the present utility model and are intended to enable those skilled in the art to understand the content of the present utility model and implement the same, and are not intended to limit the scope of the present utility model. All equivalent changes or modifications made in accordance with the spirit of the present utility model should be construed to be included in the scope of the present utility model.

Claims

1. A charging cable for a field machine, comprising: the cable core formed by stranding a ground wire (1) and a plurality of power wire cores (2) and a sheath layer (3) coated on the outer side of the cable core are characterized in that: the power core (2) and the ground wire (1) further comprise: the cable comprises a central conductor formed by twisting a plurality of strands (4) and an insulating layer (5) tightly wrapped on the outer side of the central conductor, wherein each strand (4) is formed by twisting a plurality of monofilament conductors (6), and the twisting direction of the monofilament conductors (6) is opposite to the twisting direction of the strands (4).

2. The field mechanical charging cable of claim 1, wherein: 1 strand (4) of 19 strands (4) is arranged in the center, the other 6 strands (4) are circumferentially arranged outside the strand (4) positioned in the center, and the remaining 12 strands (4) are circumferentially arranged outside the intermediate layer formed by the 6 strands (4).

3. The field mechanical charging cable of claim 1, wherein: the monofilament conductor (6) is a bare copper monofilament with the diameter of 0.08-0.20 mm.

4. The field mechanical charging cable of claim 1, wherein: the insulating layer (5) is a polyolefin insulating layer.

5. The field mechanical charging cable of claim 1, wherein: the power wire cores (2) are provided with 3 pieces, and the colors of the insulating layers (5) of the power wire cores (2) are different.

6. The field mechanical charging cable of claim 1, wherein: the insulating layer (5) of the ground wire (1) has a yellow/green bi-color, wherein the proportion of yellow is not less than 30% of the whole section.