A new energy vehicle cable

Abstract

The utility model discloses a new energy automobile cable relates to cable technical field, solved the existing technology in new energy cable exists because laying environment is bad and is easy to corrode breakage, causes fire, leads to the problem of shortening of service life and economic cost increase, including cable core structure, and cable core structure includes a plurality of array distribution's conductor, the insulating layer of wrapping on each conductor and the shielding layer of wrapping in the outside of insulating layer, still include: outer sheath, wraps in the outside of cable core structure, and outer sheath includes outer sheath, inner sheath, waterproof layer, heat insulating layer and reinforcing layer, and inner sheath wraps in the outside of shielding layer, and heat insulating layer wraps in the outside of inner sheath, and waterproof layer sets up in the inside of outer sheath and wraps in the outside of reinforcing layer, the cable scheme of the utility model can keep certain flexibility while being resistant to high temperature, can also disperse mechanical stress, makes the structural strength of cable effectively promote, further prolongs the service life of cable.

Description

Technical Field

[0001] This utility model belongs to the field of cable technology, and in particular relates to a new energy vehicle cable. Background Technology

[0002] New energy vehicles use unconventional vehicle fuels and combine them with advanced power control and drive technologies, resulting in advanced technological principles and novel structures. These vehicles are equipped with various electronic devices, and wiring harnesses are laid out inside the vehicle to transmit the necessary power and signals to these devices.

[0003] Currently, in the practical application of new energy vehicles, new energy cables are mostly laid on the ground and exposed to the external environment. Existing cables rely solely on outer sheaths for protection, which offers extremely limited protection. Especially during the hot and rainy summer season, cables are exposed to high temperatures and soaked in rainwater for extended periods. This harsh environment easily causes cable corrosion and damage, and in severe cases, can even lead to fires. Ultimately, this shortens the lifespan of new energy cables and significantly increases economic costs.

[0004] In summary, existing new energy cables are prone to corrosion and damage due to harsh laying environments, which can lead to fires, shorten their service life, and increase economic costs. Utility Model Content

[0005] This utility model provides a new energy vehicle cable that can solve the problems of existing new energy cables being prone to corrosion and damage due to harsh laying environments, which can lead to fires, shorten service life, and increase economic costs.

[0006] To achieve the above objectives, a new energy vehicle cable is proposed according to an embodiment of the first aspect of the present invention, comprising a cable core structure, wherein the cable core structure comprises a plurality of conductors arranged in an array, an insulation layer wrapped around each conductor, and a shielding layer wrapped around the insulation layer. Also includes: The outer sheath, which wraps around the outside of the cable core structure, includes an outer sheath, an inner sheath, a waterproof layer, a heat insulation layer, and a reinforcing layer. The inner protective layer is wrapped around the outside of the shielding layer, the heat insulation layer is wrapped around the outside of the inner protective layer, the waterproof layer is disposed inside the outer protective layer and wrapped around the outside of the reinforcing layer, and the reinforcing layer is wrapped around the outside of the heat insulation layer.

[0007] A further improvement is that each of the conductors is made of metallic copper, and the insulating layer is a polyimide film.

[0008] A further improvement is that a silicone rubber material is provided between the insulating layer and the shielding layer, and the shielding layer is made of silicone rubber semiconducting tape and silver-plated copper wire woven together.

[0009] A further improvement is that the outer protective layer is a cross-linked polyethylene sheath, and the inner protective layer is made of silicone rubber.

[0010] A further improvement is that the reinforcing layer is an aluminum alloy sheath, and the heat insulation layer is made of aerogel felt.

[0011] A further improvement is that the waterproof layer is tightly wrapped around the outside of the reinforcing layer by a water-blocking tape in a spiral wrapping manner.

[0012] Compared with the prior art, the beneficial effects of this utility model are: (1) This utility model designs an outer sheath consisting of an outer sheath, an inner sheath, a waterproof layer, a heat insulation layer, and a reinforcing layer, which is wrapped around the outside of the cable core structure. The heat insulation layer is made of aerogel felt, which has an extremely low thermal conductivity, excellent heat insulation performance, and is thin and lightweight. Combined with the use of polyimide film, it can improve the cable's heat insulation performance, preventing accidents caused by overheating inside the cable. It also has good mechanical properties and chemical stability, making it suitable as an auxiliary material for the heat insulation layer. A silicone rubber filler is placed between the insulation layer and the shielding layer. The shielding layer is a composite of silicone rubber semi-conductive tape and silver-plated copper wire. Silicone rubber can withstand temperatures up to 200℃, making it suitable for high-temperature environments. The semi-conductive tape provides a uniform electric field, and the silver-plated copper wire enhances the shielding effect. Furthermore, by designing the outer sheath as a cross-linked polyethylene sheath and the inner sheath as a silicone rubber material, this material, combined with the shielding layer, can maintain a certain degree of flexibility while withstanding high temperatures, and can also disperse mechanical stress, effectively improving the structural strength of the cable.

[0013] (2) This new type of cable features an aluminum alloy sheath as the reinforcing layer. The aluminum alloy sheath, in conjunction with the inner sheath, enhances the cable's tensile, bending, and impact resistance. Furthermore, the aluminum alloy sheath provides a uniform electric field distribution, preventing partial discharge, thus further enhancing the electromagnetic shielding effect in conjunction with the shielding layer. The waterproof layer is tightly wrapped around the reinforcing layer in a spiral manner with water-blocking tape. This water-blocking tape expands upon contact with water to form a gel, preventing moisture from diffusing longitudinally into the cable core gaps, thereby effectively improving the cable's waterproof performance and extending the overall service life of the cable. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the cable of this utility model; Figure 2 This is a schematic diagram of the cross-sectional structure of the cable of this utility model.

[0015] Marked in the image: 1. Cable core structure; 11. Conductor; 12. Insulation layer; 13. Shielding layer; 14. Silicone rubber material; 2. Outer sheath; 21. Outer sheath; 22. Inner sheath; 23. Waterproof layer; 24. Heat insulation layer; 25. Reinforcing layer. Detailed Implementation

[0016] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0017] like Figure 1 As shown, a new energy vehicle cable includes a cable core structure 1, which includes a plurality of arrayed conductors 11, an insulation layer 12 wrapped around each conductor 11, and a shielding layer 13 wrapped around the insulation layer 12. It should be noted that each conductor 11 is made of copper, and copper conductors 11 have the following excellent properties.

[0018] Conductivity: Reduces power loss and improves transmission efficiency; Mechanical properties: High tensile strength (approximately 200-250 MPa), resistant to bending and vibration, suitable for complex wiring environments (such as in-vehicle wiring harnesses and charging guns); Corrosion resistance: The surface easily forms an oxide film, which has good resistance to most environments (such as humidity and salt spray) and has a long service life; Excellent welding performance: easy to connect to terminals, low contact resistance, and high reliability; Specifically, the insulating layer 12 is a polyimide film. The polyimide film has excellent high temperature resistance (can withstand temperatures above 250°C for a long time) and insulation properties, as well as good mechanical properties and chemical stability, and can be used as an auxiliary material for the heat insulation layer 24. Specifically, a silicone rubber material 14 is provided between the insulating layer 12 and the shielding layer 13. The shielding layer 13 is made of silicone rubber semi-conductive tape and silver-plated copper wire. Because the silicone rubber material 14 can withstand high temperatures of 200℃, it is suitable for high-temperature environments. The semi-conductive tape has a uniform electric field, and the silver-plated copper wire enhances the shielding effect.

[0019] The outer sheath 2 is wrapped around the outside of the cable core structure 1. The outer sheath 2 includes an outer sheath 21, an inner sheath 22, a waterproof layer 23, a heat insulation layer 24, and a reinforcing layer 25. The inner sheath 22 is wrapped around the outside of the shielding layer 13, the heat insulation layer 24 is wrapped around the outside of the inner sheath 22, the waterproof layer 23 is disposed inside the outer sheath 21 and wrapped around the outside of the reinforcing layer 25, and the reinforcing layer 25 is wrapped around the outside of the heat insulation layer 24. Specifically, the outer sheath 21 is a cross-linked polyethylene sheath, and the inner sheath 22 is made of silicone rubber 14. This material, in conjunction with the shielding layer 13, can maintain a certain degree of flexibility while resisting high temperatures, and can also disperse mechanical stress, effectively improving the structural strength of the cable. Specifically, the reinforcing layer 25 is an aluminum alloy sheath. On the one hand, the aluminum alloy sheath works in conjunction with the inner sheath 22 to enhance the cable's tensile, bending, and impact resistance. On the other hand, the aluminum alloy sheath can distribute the electric field evenly, preventing partial discharge, thereby further enhancing the electromagnetic shielding effect in conjunction with the shielding layer 13. Specifically, the waterproof layer 23 is tightly wrapped around the outside of the reinforcing layer 25 by a water-blocking tape in a spiral wrapping manner. The water-blocking tape can expand to form a gel when it comes into contact with water, which blocks the diffusion of water along the longitudinal direction of the cable into the gap between the cable cores, thereby effectively improving the waterproof performance of the cable. Specifically, the insulation layer 24 is made of aerogel felt material. Because aerogel felt material has an extremely low thermal conductivity (as low as 0.018W / (m·K)), it has excellent thermal insulation performance. It is also thin and lightweight. In conjunction with the use of polyimide film, it can improve the thermal insulation performance of the cable and prevent accidents caused by overheating inside the cable.

[0020] like Figure 1 and Figure 2 As shown in this embodiment, it should also be noted that the actual dimensions of each component in the application document are selected for installation based on actual site requirements before implementation; the cable is manufactured according to existing production processes. Furthermore, it should be noted that this application document only addresses the shortcomings of existing new energy cables, such as susceptibility to corrosion and damage due to harsh laying environments, leading to fires, shortened service life, and increased economic costs, and does not involve other aspects; the working principle of this new energy vehicle cable is described below: In practical field applications, this novel cable design utilizes an outer sheath 2, composed of an outer sheath 21, an inner sheath 22, a waterproof layer 23, a heat insulation layer 24, and a reinforcing layer 25, which wraps around the cable core structure 1. The heat insulation layer 24 is made of aerogel felt, which has an extremely low thermal conductivity (as low as 0.018 W / (m·K)), excellent heat insulation performance, and is thin and lightweight. Combined with the use of polyimide film, this improves the cable's heat insulation performance, preventing accidents caused by internal overheating. It also possesses good mechanical properties and chemical stability, making it suitable as an auxiliary material for the heat insulation layer 24. A silicone rubber 14 is placed between the insulation layer 12 and the shielding layer 13. The shielding layer 13 is a composite of silicone rubber semi-conductive tape and silver-plated copper wire. Because the silicone rubber 14 can withstand temperatures up to 200℃, it is suitable for high-temperature environments. The silicone rubber semi-conductive tape provides a uniform electric field, and the silver-plated copper wire enhances the shielding effect. In addition, by designing the outer sheath 21 as a cross-linked polyethylene sheath and the inner sheath 22 as a silicone rubber material, the silicone rubber material 14 can be used in conjunction with the shielding layer 13. It can maintain a certain degree of flexibility while resisting high temperature, and can also disperse mechanical stress, thereby effectively improving the structural strength of the cable.

[0021] In addition, the reinforcing layer 25 is an aluminum alloy sheath. This sheath, in conjunction with the inner sheath 22, enhances the cable's tensile, bending, and impact resistance. Furthermore, the aluminum alloy sheath provides a uniform electric field distribution, preventing partial discharge, thus further enhancing the electromagnetic shielding effect in conjunction with the shielding layer 13. The waterproof layer 23 is made of water-blocking tape tightly wrapped around the outside of the reinforcing layer 25 in a spiral manner. This water-blocking tape expands upon contact with water to form a gel, preventing moisture from diffusing longitudinally into the gaps between the cable cores, thereby effectively improving the cable's waterproof performance and extending its overall service life.

[0022] The above embodiments are only used to illustrate the technical methods of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical methods of this utility model without departing from the spirit and scope of the technical methods of this utility model.

Claims

1. A new energy vehicle cable, comprising a core structure (1), wherein the core structure (1) comprises a plurality of arrayed conductors (11), an insulation layer (12) wrapped around each conductor (11), and a shielding layer (13) wrapped around the insulation layer (12). characterized in that Also includes: The outer sheath (2) wraps around the outside of the cable core structure (1). The outer sheath (2) includes an outer sheath (21), an inner sheath (22), a waterproof layer (23), a heat insulation layer (24), and a reinforcing layer (25). The inner protective layer (22) is wrapped around the outside of the shielding layer (13), the heat insulation layer (24) is wrapped around the outside of the inner protective layer (22), the waterproof layer (23) is disposed inside the outer protective layer (21) and wrapped around the outside of the reinforcing layer (25), and the reinforcing layer (25) is wrapped around the outside of the heat insulation layer (24). The reinforcing layer (25) is an aluminum alloy sheath, and the heat insulation layer (24) is made of aerogel felt.

2. The new energy vehicle cable according to claim 1, characterized in that, Each conductor (11) is made of copper, and the insulating layer (12) is a polyimide film.

3. The new energy vehicle cable according to claim 1, characterized in that, A silicone rubber material (14) is provided between the insulating layer (12) and the shielding layer (13). The shielding layer (13) is made of silicone rubber semiconducting tape and silver-plated copper wire.

4. The new energy vehicle cable according to claim 1, characterized in that, The outer protective layer (21) is a cross-linked polyethylene sheath, and the inner protective layer (22) is made of silicone rubber.

5. The new energy vehicle cable according to claim 1, characterized in that, The waterproof layer (23) is tightly wrapped around the outside of the reinforcing layer (25) by a water-blocking tape in a spiral wrapping manner.

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