Lightweight automobile low-voltage thin-wall cable

Abstract

The utility model provides a lightweight automobile low-voltage thin-wall cable which comprises a wire core, a fixing layer wrapping the periphery of the wire core and an insulating layer wrapping the periphery of the fixing layer, the wire core is formed by twisting a plurality of wires and a plurality of temperature transmission wires, the wires are made of tin-plated aluminum alloy, and the temperature transmission wires are made of tin-plated aluminum alloy or tin-plated aluminum alloy or tin-plated aluminum alloy or tin-plated aluminum alloy or tin-plated aluminum alloy or tin-plated aluminum alloy or tin-plated aluminum alloy or tin-plated aluminum alloy. The low-voltage thin-wall cable for the automobile has the advantages that the lead layer material in the low-voltage thin-wall cable for the automobile is replaced by the tin-coated aluminum alloy from five types of copper, the lightweight design of the new energy automobile is promoted, the intelligent design of the new energy automobile is improved, the line working condition of the new energy automobile in the working process is conveniently monitored in real time, the structure is simple, and popularization and implementation are convenient.

Description

Technical Field

[0001] The present application belongs to the technical field of new energy automobile manufacturing, and specifically relates to a lightweight low-voltage thin-walled cable for automobiles. Background Art

[0002] In the prior art, with the rapid development of new energy vehicle manufacturing technology, the quality requirements for low-voltage thin-walled cables have also been significantly improved during the manufacturing process of new energy vehicles. The conductor layer of the existing low-voltage thin-walled cable is usually twisted together by five types of copper conductors. In the actual production process of new energy vehicles, on the one hand, the conductor layer twisted together by five types of copper is too heavy, which is not conducive to the lightweight design of new energy vehicles. On the other hand, the cost of five types of copper raw materials is relatively high, which is not conducive to reducing the manufacturing cost of new energy vehicles. Moreover, the thermal conductive layer of new energy vehicles heats up seriously during long-term driving. The existing new energy vehicles have a high degree of intelligence but cannot monitor the working conditions of the internal cables, and cannot promptly reflect the working conditions of the vehicle lines to the driver. Therefore, improvements are urgently needed. Utility Model Content

[0003] In order to solve the technical problem in the prior art that the conductor layer of the low-voltage thin-walled cable required in the actual production process of new energy vehicles is usually composed of five types of copper conductors twisted together, which has too high a dead weight and is not conducive to the lightweight design of new energy vehicles, the present application proposes a lightweight automotive low-voltage thin-walled cable.

[0004] The present application adopts the following scheme: a lightweight automotive low-voltage thin-wall cable, comprising a wire core, a fixed layer coated on the outer periphery of the wire core, and an insulating layer coated on the outer periphery of the fixed layer. The wire core is formed by twisting a plurality of conductors and a temperature transmission line. The material of the conductors is tinned copper-clad aluminum alloy. The plurality of temperature transmission lines are used to measure the working temperature of the wire core.

[0005] Furthermore, the insulating layer is made of polypropylene.

[0006] Furthermore, the fixing layer is a heat shrink sleeve, and the inner wall surface of the fixing layer is provided with anti-slip grooves along its circumference.

[0007] Furthermore, the outer wall surface of the fixing layer is provided with fixing protrusions at intervals along its circumferential direction, and the insulating layer is coated on the fixing protrusions.

[0008] Furthermore, the thickness a of the fixed layer and the thickness b of the insulating layer satisfy the following relationship: b≥1.5a.

[0009] Furthermore, the cross section of the fixing protrusion is a regular pattern.

[0010] Furthermore, the cross section of the fixing protrusion is any one of semicircular, semi-elliptical and trapezoidal.

[0011] Furthermore, the temperature transmission line is arranged in the outer layer and / or the central layer of the wire core.

[0012] Furthermore, the temperature transmission lines and the conducting wires are alternately arranged along the circumference of the wire core.

[0013] Compared with the prior art, this application has the following beneficial effects:

[0014] The present application provides a lightweight low-voltage thin-wall cable for automobiles, comprising a wire core, a fixed layer coated on the outer periphery of the wire core, and an insulating layer coated on the outer periphery of the fixed layer, wherein the wire core is formed by twisting a plurality of conductors and a temperature transmission line, and the material of the conductor is tin-plated aluminum alloy. By replacing the conductor layer material in the low-voltage thin-wall cable for automobiles from category five copper to tin-plated aluminum alloy, it has the advantages of promoting the lightweight design of new energy vehicles, improving the intelligent design of new energy vehicles, facilitating real-time monitoring of the line working conditions of new energy vehicles during operation, having a simple structure, and being easy to promote and implement. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for describing the embodiments are briefly introduced below.

[0016] Figure 1 This is a cross-sectional schematic diagram of a lightweight automotive low-voltage thin-wall cable temperature transmission line of the present application, which has only one temperature transmission line and is arranged in the middle layer of the wire core;

[0017] Figure 2 This is a cross-sectional schematic diagram of a lightweight automotive low-voltage thin-wall cable temperature transmission line of the present application, which is provided with multiple cables and arranged in the middle and outer layers of the wire core. DETAILED DESCRIPTION

[0018] Combined with Figure 1-2 As shown, the technical solution is further described, a lightweight automotive low-voltage thin-wall cable, including a core 1, a fixed layer 2 coated on the outer periphery of the core 1, and an insulating layer 3 coated on the outer periphery of the fixed layer 2, the core 1 is formed by twisting a plurality of conductors 10 and a temperature transmission line 11, the conductor 10 is made of tinned copper clad aluminum alloy, and the plurality of temperature transmission lines 11 are used to measure the working temperature of the core 1.

[0019] In actual implementation, the wire is made of tinned copper clad aluminum alloy, and the elongation of the wire is ≥10%, which can ensure that the cable has better flexibility and durability in practical applications. The wire density is 3.63g / cm 3 The density of traditional Category 5 copper wire is 8.89g / cm 3By replacing the material of the conductors in cables for new energy vehicles from Category 5 copper to tin-plated copper-clad aluminum alloy, the advantages of copper and aluminum are combined, which not only ensures the conductivity of the conductors but also reduces the weight of the cables themselves, making it easier to promote the lightweight design of new energy vehicles.

[0020] During the implementation of this embodiment, the material of the insulating layer 3 is polypropylene.

[0021] In the actual implementation process, the insulation layer is made of environmentally friendly 125-degree polypropylene material with a density of 0.95g / cm 3 In the prior art, the insulation layer of new energy vehicle cables is generally made of 125-degree low-smoke halogen-free irradiated cross-linked polyolefin material with a density of 1.55g / cm 3 The density of the insulating layer in this embodiment is much smaller than that of the insulating layer of the new energy vehicle cable in the prior art, and has the advantages of low manufacturing cost, facilitating the lightweight design of new energy vehicles, and meeting market demand.

[0022] During the implementation of this embodiment, the fixing layer 2 is a heat shrink sleeve, and the inner wall surface of the fixing layer 2 is provided with anti-slip grooves along its circumference.

[0023] In the actual implementation process, by setting anti-slip patterns on the inner surface of the fixing layer, when the wire core is matched in the heat shrink sleeve, the anti-slip patterns can increase the friction between the fixing layer and the wire core, thereby improving the fixing stability of the fixing layer and extending the service life of the cable.

[0024] During the implementation of this embodiment, the outer wall surface of the fixing layer 2 is provided with fixing protrusions 4 at intervals along its circumferential direction, and the insulating layer 3 is coated on the fixing protrusions 4 .

[0025] During the actual implementation process, by setting a fixing layer, when the wire core is in a working state, the wire core is energized and heated up, the fixing layer can tighten the wire core, and the fixing protrusion can fit tightly with the inner surface of the insulation layer to prevent damage to the insulation layer and improve the durability of the cable.

[0026] During the implementation of this embodiment, the thickness a of the fixed layer 2 and the thickness b of the insulating layer 3 satisfy the following relationship: b≥1.5a.

[0027] In actual implementation, the thickness a of the fixed layer and the thickness b of the insulating layer satisfy the following relationship: b=2.5a.

[0028] During the implementation of this embodiment, the cross section of the fixing protrusion 4 is a regular pattern.

[0029] During the implementation of this embodiment, the cross-section of the fixing protrusion 4 is any one of semicircular, semi-elliptical, and trapezoidal.

[0030] In actual implementation, the cross section of the fixing protrusion is semicircular.

[0031] During the implementation of this embodiment, Figure 1-2 As shown, the temperature transmission line 11 is arranged on the outer layer and / or the central layer of the wire core 1.

[0032] During the implementation of this embodiment, the temperature transmission line 11 and the conducting wire 10 are alternately arranged along the circumference of the wire core 1 .

[0033] The present application provides a lightweight low-voltage thin-wall cable for automobiles, comprising a wire core, a fixed layer coated on the outer periphery of the wire core, and an insulating layer coated on the outer periphery of the fixed layer, wherein the wire core is formed by twisting a plurality of conductors and a temperature transmission line, and the material of the conductor is tin-plated aluminum alloy. By replacing the conductor layer material in the low-voltage thin-wall cable for automobiles from category five copper to tin-plated aluminum alloy, it has the advantages of promoting the lightweight design of new energy vehicles, improving the intelligent design of new energy vehicles, facilitating real-time monitoring of the line working conditions of new energy vehicles during operation, having a simple structure, and being easy to promote and implement.

[0034] The above are only embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A lightweight low-voltage thin-walled cable for automobiles, characterized in that: The invention comprises a wire core (1), a fixed layer (2) coated on the outer periphery of the wire core (1), and an insulating layer (3) coated on the outer periphery of the fixed layer (2); the wire core (1) is formed by twisting a plurality of wires (10) and a temperature transmission line (11); the wires (10) are made of tinned copper-clad aluminum alloy; and the plurality of temperature transmission lines (11) are used to measure the working temperature of the wire core (1).

2. A lightweight automotive low-voltage thin-wall cable according to claim 1, characterized in that: The material of the insulating layer (3) is polypropylene.

3. A lightweight automotive low-voltage thin-wall cable according to claim 1, characterized in that: The fixing layer (2) is a heat shrink sleeve, and the inner wall surface of the fixing layer (2) is provided with anti-slip grooves along its circumference.

4. A lightweight low-voltage thin-walled cable for automobiles according to claim 2, characterized in that: The outer wall surface of the fixing layer (2) is provided with fixing protrusions (4) at intervals along its circumference, and the insulating layer (3) is coated on the fixing protrusions (4).

5. A lightweight automotive low-voltage thin-wall cable according to claim 1, characterized in that: The thickness a of the fixing layer (2) and the thickness b of the insulating layer (3) satisfy the following relationship: b≥1.5a.

6. A lightweight low-voltage thin-walled cable for automobiles according to claim 4, characterized in that: The cross section of the fixing protrusion (4) is a regular pattern.

7. A lightweight low-voltage thin-walled cable for automobiles according to claim 6, characterized in that: The cross section of the fixing protrusion (4) is any one of a semicircular shape, a semi-elliptical shape and a trapezoidal shape.

8. A lightweight low-voltage thin-walled cable for automobiles according to claim 1, characterized in that: The temperature transmission line (11) is arranged on the outer layer and / or the central layer of the line core (1).

9. A lightweight low-voltage thin-walled cable for automobiles according to claim 1, characterized in that: The temperature transmission wire (11) and the conducting wire (10) are arranged alternately and spaced along the circumference of the wire core (1).

Images