Composite cable of new energy automobile

Abstract

The utility model discloses a new energy automobile composite cable comprising a high voltage conductor, low voltage leads and an insulating layer, the high voltage conductor is a flat copper bar or aluminum bar, the plurality of low voltage leads respectively extending along the length direction of the high voltage conductor are arranged on the surface of one side of the high voltage conductor in sequence, and the insulating layer is arranged on the surface of the other side of the high voltage conductor. And the insulating layer coats the outer sides of the high-voltage conductor and the low-voltage wires arranged on the surface of one side of the high-voltage conductor along the width direction. According to the utility model, organic combination of the high-voltage cable and the low-voltage cable is realized, installation and laying are facilitated, the required laying space is reduced, the laying efficiency is improved, and the production efficiency can also be improved.

Description

Technical Field

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

[0002] With the continuous development of new energy vehicles, new energy cables, as one of the spare parts of new energy vehicles, have also emerged. They are wire products used to transmit electrical (magnetic) energy, information and realize electromagnetic energy conversion. The high-voltage wires and low-voltage wires used in current new energy vehicles belong to two different systems and need to be produced and installed separately, which has low production efficiency and requires a large laying space. Utility Model Content

[0003] The purpose of the utility model is to provide a composite cable for new energy vehicles, which realizes the organic combination of high and low voltage cables, is easy to install and lay, reduces the required laying space, improves the laying efficiency, and can also improve the production efficiency.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a composite cable for new energy vehicles, comprising: a high-voltage conductor, a low-voltage wire and an insulating layer, the high-voltage conductor is a flat copper bar or aluminum bar, and a plurality of low-voltage wires extending along the length direction of the high-voltage conductor are arranged in sequence on one side surface of the high-voltage conductor, and the insulating layer is coated on the high-voltage conductor and the outer side of the low-voltage wires arranged on the one side surface of the high-voltage conductor along the width direction.

[0005] The further improved scheme in the above technical scheme is as follows:

[0006] 1. In the above scheme, any two adjacent low-voltage wires are bonded and connected.

[0007] 2. In the above solution, a plurality of the low-voltage wires are arranged in a layer on the surface of one side of the high-voltage conductor.

[0008] 3. In the above solution, a plurality of the low-voltage wires are arranged in at least two layers on the surface of one side of the high-voltage conductor.

[0009] 4. In the above solution, arc chamfers are provided at the four corners of the high-voltage conductor.

[0010] 5. In the above solution, the radius of each arc chamfer is 1mm~2.5mm.

[0011] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0012] The composite cable of the utility model for new energy vehicles has a high-voltage conductor which is a flat copper bar or aluminum bar, and a plurality of low-voltage wires extending along the length direction of the high-voltage conductor are arranged in sequence on one side surface of the high-voltage conductor. An insulating layer is coated on the high-voltage conductor and the outer side of the low-voltage wires arranged on the one side surface of the high-voltage conductor along the width direction, thereby realizing an organic combination of high and low voltage cables, facilitating installation and laying, reducing the required laying space, improving laying efficiency, and also improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Attached Figure 1 This is a structural schematic diagram of Embodiment 1 of the composite cable for new energy vehicles of the utility model;

[0014] Attached Figure 2 For the utility model Figure 1 The enlarged schematic diagram of point A in the middle;

[0015] Attached Figure 3 This is a schematic structural diagram of Embodiment 2 of the composite cable for new energy vehicles of the utility model.

[0016] In the above figures: 1, high-voltage conductor; 2, insulation layer; 3, arc chamfer; 4, low-voltage wire; 41, center conductor; 42, low-voltage insulation layer. DETAILED DESCRIPTION

[0017] The present invention can be further understood through the specific embodiments given below, but they are not intended to limit the present invention.

[0018] Embodiment 1: A composite cable for a new energy vehicle, comprising: a high-voltage conductor 1, a low-voltage wire 4 and an insulating layer 2, wherein the high-voltage conductor 1 is a flat aluminum bar, a plurality of low-voltage wires 4 extending along the length direction of the high-voltage conductor 1 are sequentially arranged on one side surface of the high-voltage conductor 1, and the insulating layer 2 is coated on the high-voltage conductor 1 and the outer side of the low-voltage wires 4 arranged on one side surface of the high-voltage conductor 1 along the width direction;

[0019] A flat copper busbar or aluminum busbar is used as the central conductor, which can be bent according to the actual laying scenario to facilitate installation and laying, reduce the required laying space and improve the laying efficiency.

[0020] Any two adjacent low-voltage conductors 4 are bonded and connected.

[0021] A plurality of the above-mentioned low-voltage wires 4 are arranged in a layer on one side surface of the high-voltage conductor 1 .

[0022] Arc chamfers 3 are provided at the four corners of the high-voltage conductor 1 .

[0023] The radius of each of the arc-shaped chamfers 3 is 1.5 mm.

[0024] Each of the low-voltage conductors 4 includes a central conductor 41 and a low-voltage insulating layer 42 covering the outer side of the central conductor 41 .

[0025] The central conductor 41 is formed by twisting a plurality of strand conductors.

[0026] The above-mentioned insulating layer 2 and low-voltage insulating layer 42 are both polyolefin XLPO insulating layers;

[0027] It uses a new type of low-smoke, halogen-free cross-linked polyolefin material with a temperature resistance grade of 150°C. Its hardness is 80±2A, its elongation at break is greater than 400%, and its tensile strength is greater than 12MPa. It has the properties of resistance to paint and solvent, high-temperature bending and cracking resistance, and good high-temperature pressure performance, which improves the product's breakdown voltage resistance.

[0028] The thickness of the insulating layer 2 and the low-voltage insulating layer 42 is 7 mm.

[0029] Embodiment 2: A composite cable for a new energy vehicle, comprising: a high-voltage conductor 1, a low-voltage wire 4 and an insulating layer 2, wherein the high-voltage conductor 1 is a flat copper busbar, a plurality of low-voltage wires 4 extending along the length direction of the high-voltage conductor 1 are sequentially arranged on one side surface of the high-voltage conductor 1, and the insulating layer 2 is coated on the high-voltage conductor 1 and the outer side of the low-voltage wires 4 arranged along the width direction on one side surface of the high-voltage conductor 1;

[0030] By compounding a plurality of low-voltage wires extending along the length direction of the high-voltage conductor on the surface of one side, wherein the low-voltage cable can be an FFC cable or a cable arrangement, and then processing, stamping and shaping the hole side, and performing subsequent screw connection or ultrasonic welding, the organic compound of high and low voltage cables is achieved, and the production efficiency can also be improved.

[0031] Any two adjacent low-voltage conductors 4 are bonded and connected.

[0032] The plurality of low-voltage wires 4 are arranged in at least two layers on one surface of the high-voltage conductor 1 .

[0033] Arc chamfers 3 are provided at the four corners of the high-voltage conductor 1 .

[0034] The radius of each of the arc-shaped chamfers 3 is 2 mm.

[0035] Each of the low-voltage conductors 4 includes a central conductor 41 and a low-voltage insulating layer 42 covering the outer side of the central conductor 41 .

[0036] The central conductor 41 is formed by twisting a plurality of tinned copper wires.

[0037] The above-mentioned insulating layer 2 and low-voltage insulating layer 42 are both nylon PA12 insulating layers;

[0038] Nylon PA12 material or polyolefin XLPO material is used. Among them, the nylon PA12 material used is resistant to alkali, oil, enzymes, inorganic dilute acids, aromatics, etc. It has good impact resistance and chemical stability. It is also a good electrical insulator and, like other polyamides, its insulation performance will not be affected by moisture.

[0039] The thickness of the insulating layer 2 and the low-voltage insulating layer 42 is 10 mm.

[0040] Further explanation of the embodiment:

[0041] The central conductor of the composite cable of the new energy vehicle of this patent adopts a flat copper bar or aluminum bar, which can be bent according to the actual laying scene to facilitate installation and laying, reduce the required laying space and improve the laying efficiency;

[0042] By compounding a plurality of low-voltage wires extending along the length direction of the high-voltage conductor on one side surface, wherein the low-voltage cable can be an FFC cable or a flat cable, and then punching and shaping the hole side through processing, and then performing subsequent screw connection or ultrasonic welding, the organic compound of high and low voltage cables is achieved, and the production efficiency can also be improved;

[0043] The insulation layer adopts nylon PA12 material or polyolefin XLPO material. The nylon PA12 material is resistant to alkali, oil, enzymes, inorganic diluted acids, aromatic hydrocarbons, etc. It has good impact resistance and chemical stability. It is also a good electrical insulator and, like other polyamides, its insulation performance will not be affected by moisture. A new type of low-smoke, halogen-free cross-linked polyolefin material with a temperature resistance grade of 150°C is adopted. Its hardness is 80±2A, its elongation at break is greater than 400%, and its tensile strength is greater than 12MPa. It has the properties of paint resistance and solvent resistance, high temperature bending crack resistance, and good high temperature pressure performance, which improves the product's breakdown voltage resistance.

[0044] When the composite cable of the new energy vehicle is used, it realizes the organic combination of high and low voltage cables, which is convenient for installation and laying, reduces the required laying space, improves the laying efficiency, and can also improve the production efficiency.

[0045] The above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with the technology to understand the content of the utility model and implement it accordingly, and they cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A composite cable for new energy vehicles, comprising: A high-voltage conductor (1), a low-voltage wire (4) and an insulating layer (2), characterized in that: the high-voltage conductor (1) is a flat copper bar or aluminum bar, a plurality of low-voltage wires (4) extending along the length direction of the high-voltage conductor (1) are arranged in sequence on one side surface of the high-voltage conductor (1), and the insulating layer (2) is coated on the outside of the high-voltage conductor (1) and the low-voltage wires (4) arranged along the width direction on one side surface of the high-voltage conductor (1).

2. The composite cable for new energy vehicles according to claim 1, characterized in that: Any two adjacent low-voltage conductors (4) are bonded and connected.

3. The composite cable for new energy vehicles according to claim 1, characterized in that: A plurality of the low-voltage wires (4) are arranged in a layer on the surface of one side of the high-voltage conductor (1).

4. The composite cable for new energy vehicles according to claim 1, characterized in that: A plurality of the low-voltage wires (4) are arranged in at least two layers on a surface of one side of the high-voltage conductor (1).

5. The composite cable for new energy vehicles according to claim 1, characterized in that: Arc chamfers (3) are provided at the four corners of the high-voltage conductor (1).

6. The composite cable for new energy vehicles according to claim 5, characterized in that: The radius of each arc chamfer (3) is 1 mm to 2.5 mm.

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