CN219143845U

CN219143845U - Main power core and charging pile cable with same

Info

Publication number: CN219143845U
Application number: CN202223282868.4U
Authority: CN
Inventors: 许利莎; 崔久德
Original assignee: Wuxi Xinhongye Cable Technology Co ltd
Current assignee: Wuxi Xinhongye Cable Technology Co ltd
Priority date: 2022-12-08
Filing date: 2022-12-08
Publication date: 2023-06-06
Anticipated expiration: 2032-12-08

Abstract

The utility model discloses a charging pile cable, comprising: the cable core formed by twisting at least 4 main power wire cores, auxiliary power wire cores, ground wires and signal control wire cores and the sheath layer coated on the outer side of the cable core are arranged into three layers along the radial direction. The main power core includes: the central strand and the outer strand wires are circumferentially arranged on the outer side of the central strand wires, the central strand wires and the outer strand wires are stranded into a main power conductor according to a first pitch diameter ratio, an insulating layer is coated on the outer side of the main power conductor, the central strand wires and the outer strand wires are stranded by a plurality of round copper strand wires according to a second pitch diameter ratio, the stranding direction is the same as the stranding direction of the central strand wires and the outer strand wires, and the second pitch diameter ratio is larger than the first pitch diameter ratio. The utility model solves the problem of current carrying and heat dissipation, greatly improves the use temperature range, and reduces the cable forming gap, thereby reducing the overall outer diameter of the cable.

Description

Main power core and charging pile cable with same

Technical Field

The utility model relates to a main power wire core and a charging pile cable with the main power wire core, and belongs to the technical field of electric wires and cables.

Background

Nowadays, the development of new energy automobiles represented by electric vehicles is an important measure for improving the international competitiveness of the automobile industry in China. In the past few years, government related departments have developed a series of policies to encourage development of electric vehicles, and the current industrialized development enthusiasm of electric vehicles in China is continuously increased under the premise of such excellent policy environment and market prospect. The charging cable is used as a current carrier for connecting the electric automobile and the charging pile and is mainly divided into an alternating current charging mode and a direct current charging mode. Alternating-current charging, which is used for daily household charging; commercial charging of tourist attractions, highways and commercial areas is mainly performed in a direct current charging mode. The existing charging pile cable is large in diameter and heavy in weight.

Disclosure of Invention

The utility model aims to solve the technical problem of providing a main power wire core and a charging pile cable with the main power wire core, which not only solve the problem of current carrying and heat dissipation, greatly improve the use temperature range, but also reduce the cable forming gap, thereby reducing the overall outer diameter of the cable.

A primary power core, comprising: the central strand wires and at least three outer strand wires of arranging in the outside of central strand wires along circumference, central strand wires and outer strand wires lay into the main power conductor according to first pitch diameter ratio, and this main power conductor outside cladding has an insulating layer, central strand wires, outer strand wires are by a plurality of round copper strand wires to lay into according to second pitch diameter ratio and the direction of transposition is the same with the direction of transposition of central strand wires, outer strand wires, second pitch diameter ratio is greater than first pitch diameter ratio.

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

1. in the scheme, 6 outer layer strands are sequentially distributed on the outer side of the central strand along the circumferential direction.

2. In the above scheme, the insulating layer is a crosslinked polyolefin sheath layer.

A charging pile cable is also provided, comprising a main power core.

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

1. the scheme comprises the following steps: the cable comprises a cable core formed by twisting at least 4 main power wire cores, an auxiliary power wire core, a ground wire and a signal control wire core and a sheath layer coated on the outer side of the cable core, wherein the at least 4 main power wire cores, the auxiliary power wire cores, the ground wire and the signal control wire cores are distributed into three layers along the radial direction, and cotton wires are filled in gaps between the outermost wire cores and the outermost wire cores.

2. In the scheme, a group of signal control wire cores are arranged in the center of the cable core, the middle layer positioned on the outer side of the group of signal control wire cores is provided with 1 auxiliary power wire core, a group of signal control wire cores and 6 main power wire cores which are sequentially distributed along the circumferential direction, and the outer side of the middle layer is provided with an outer ring layer formed by arranging 1 ground wire, 10 main power wire cores, 1 auxiliary power wire core and two groups of signal control wire cores along the circumferential direction.

3. In the above scheme, a nonwoven cloth layer is wrapped on the outer side of the outer ring layer.

4. In the above scheme, the sheath layer outside the non-woven fabric layer is a TPU sheath layer.

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

according to the charging pile cable, at least 4 main power wire cores are arranged, and at least 4 main power wire cores, auxiliary power wire cores, ground wires and signal control wire cores are distributed into three layers along the radial direction, so that a traditional single power wire core is converted into a plurality of core wire power wires and stranded in layers, the problem of current carrying and heat dissipation is solved, the use temperature range is greatly increased, the cable forming gap is reduced, and the overall outer diameter of the cable is further reduced; furthermore, cotton wires are filled in gaps between the outermost wire cores and the wire cores, so that dislocation during bending of the wire cores can be effectively prevented, and the overall bending resistance, dragging resistance and torsion resistance of the cable are improved.

Drawings

FIG. 1 is a sectional view showing the structure of embodiment 2 of the present utility model;

fig. 2 is a schematic diagram showing the arrangement of the internal strands of the main power core in embodiment 1 of the present utility model.

In the above figures: 1. a main power wire core; 11. a central strand; 12. an outer layer strand; 13. an insulating layer; 2. an auxiliary power supply core; 3. a ground wire; 4. a signal control wire core; 5. cotton thread; 6. a non-woven fabric layer; 7. and a sheath layer.

Detailed Description

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

Example 1: a primary power core, comprising: the central strand 11 and at least three outer layer strands 12 which are circumferentially arranged on the outer side of the central strand 11, the central strand 11 and the outer layer strands 12 are stranded into a main power conductor according to a pitch diameter ratio of 12-18 times, an insulating layer 13 is coated on the outer side of the main power conductor, the central strand 11 and the outer layer strands 12 are stranded by 40-120 round copper strands with the monofilament diameters of 0.15-0.30 mm according to the sectional area of the main power core according to a pitch diameter ratio of 25-40 times, and the stranding direction is the same as the stranding direction of the central strand 11 and the outer layer strands 12.

6 outer layer strands 12 are sequentially arranged on the outer side of the central strand 11 along the circumferential direction; the insulating layer 13 is a high temperature-resistant crosslinked polyolefin sheath layer.

Example 2: a charging pile cable comprising: the cable core formed by twisting at least 4 main power wire cores 1, auxiliary power wire cores 2, ground wires 3 and signal control wire cores 4 and the sheath layer 7 coated on the outer side of the cable core are distributed into three layers along the radial direction, and gaps between the outermost wire cores and the wire cores are filled with cotton wires 5 with high strength and good heat conductivity.

The signal control wire core 4 is arranged in the center of the cable core, the middle layer positioned on the outer side of the signal control wire core 4 is provided with 1 auxiliary power wire core 2, one signal

control wire core

4 and 6 main power wire cores 1 which are sequentially distributed along the circumferential direction, the outer side of the middle layer is provided with an outer ring layer formed by distributing 1 ground wire 3, 10 main

power wire cores

1, 1 auxiliary power wire core 2 and two signal control wire cores 4 along the circumferential direction, a traditional single power wire core is converted into a plurality of core wire power wires and stranded in layers, the problem of current carrying and heat dissipation is solved, the use temperature range is greatly improved, the cable gap is reduced, and the overall outer diameter of the cable is further reduced.

A nonwoven cloth layer 6 is wrapped on the outer side of the outer ring layer; the sheath layer 7 positioned outside the non-woven fabric layer 6 is a TPU sheath layer.

The 10 main power wire cores 1 in the outer ring layer are sequentially arranged with 5 main power wire cores 1 in the main

power wire core

1, 2 spacing areas are formed between the main power wire cores 1 and the other 5 main power wire cores 1 which are sequentially arranged, two groups of signal control wire cores 4 are filled in one spacing area, and 1

ground wire

3 and 1 auxiliary power wire core 2 are filled in the other spacing area.

By adopting the charging pile cable, the main power wire core is provided with at least 4 main power wire cores, the auxiliary power wire cores, the ground wires and the signal control wire cores are distributed into three layers along the radial direction, and the traditional single power wire core is converted into a plurality of core wire power wires and stranded in layers, so that the problem of current carrying and heat dissipation is solved, the use temperature range is greatly increased, the cable forming gap is reduced, and the overall outer diameter of the cable is further reduced; furthermore, cotton wires are filled in gaps between the outermost wire cores and the wire cores, so that dislocation during bending of the wire cores can be effectively prevented, and the overall bending resistance, dragging resistance and torsion resistance of the cable are improved.

Further explanation of the above embodiments is as follows:

as a key structure DC+/DC-of the charging pile cable, a traditional main power wire core adopts a single-core structure, and the current-carrying heat dissipation of a product is seriously affected;

according to the utility model, a homogenization structure is adopted, the main power wire core is split into a multi-core structure, and a 5-class conductor compacting structure is adopted as the central conductor, so that the current-carrying and heat dissipation problems are effectively solved, the cabling gap is further reduced, and the overall outer diameter of a cable is further reduced;

the insulation is made of high-strength, high-insulation and high-temperature-resistant cross-linked polyolefin, the insulation thickness is reduced by 30% compared with that of the traditional structure, and the overall weight of the cable is reduced on the premise of not affecting the pressure resistance;

the cable core adopts a layering homodromous stranding process, so that the bonding compactness between each insulated wire core is effectively improved, the overall outer diameter of the cable is reduced, and the overall anti-swing performance of the cable is improved;

the gap between the wire cores is filled with high-strength cotton threads 5 with good heat conduction performance, so that the material can accelerate heat dissipation and prevent dislocation when the wire cores are bent;

the outermost sheath is extruded with a layer of TPU material with high hardness and good wear resistance, and the TPU material has outstanding environmental resistance and wear resistance.

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. The utility model provides a initiative sinle silk which characterized in that: comprising the following steps: the central strand wires (11) and at least three outer strand wires (12) of arranging in the outside of central strand wires (11) along circumference, central strand wires (11) lay into the initiative power conductor according to first pitch diameter ratio with outer strand wires (12), and this initiative power conductor outside cladding has insulating layer (13), central strand wires (11), outer strand wires (12) are formed by a plurality of copper strands according to the transposition of second pitch diameter ratio and the direction of transposition is the same with the direction of transposition of central strand wires (11), outer strand wires (12), second pitch diameter ratio is greater than first pitch diameter ratio.

2. The primary power cord of claim 1, wherein: 6 outer layer strands (12) are sequentially distributed on the outer side of the central strand (11) along the circumferential direction.

3. The primary power cord of claim 1, wherein: the insulating layer (13) is a crosslinked polyolefin sheath layer.

4. The utility model provides a fill electric pile cable which characterized in that: a main power core as claimed in any one of claims 1 to 3.

5. The charging pile cable according to claim 4, characterized in that: comprising the following steps: the cable core formed by twisting at least 4 main power wire cores (1), an auxiliary power wire core (2), a ground wire (3) and a signal control wire core (4) and a sheath layer (7) coated on the outer side of the cable core are arranged into three layers along the radial direction, and cotton wires (5) are filled in gaps between the outermost wire cores and the wire cores.

6. The charging pile cable according to claim 5, characterized in that: the signal control wire core (4) is arranged in the center of the cable core, the middle layer positioned outside the signal control wire core (4) is provided with 1 auxiliary power wire core (2), one signal control wire core (4) and 6 main power wire cores (1) which are sequentially distributed along the circumferential direction, and the outer ring layer formed by distributing 1 ground wire (3), 10 main power wire cores (1), 1 auxiliary power wire core (2) and two signal control wire cores (4) along the circumferential direction is arranged outside the middle layer.

7. The charging pile cable according to claim 6, characterized in that: and a non-woven cloth layer (6) is wrapped on the outer side of the outer ring layer.

8. The charging pile cable according to claim 6, characterized in that: the sheath layer (7) positioned on the outer side of the non-woven fabric layer (6) is a TPU sheath layer.