A new energy vehicle uses a new type of electromagnetic compatibility material high-voltage cable

Abstract

The utility model discloses a new energy vehicle with novel electromagnetic compatibility material high voltage cable, including copper conductor, the copper conductor outside is provided with low smoke halogen -free cross -linked polyolefin insulation layer, low smoke halogen -free cross -linked polyolefin insulation layer outside is provided with electromagnetic compatibility irradiation cross -linked high molecular polymer layer, electromagnetic compatibility irradiation cross -linked high molecular polymer layer outside is provided with metal shielding layer, low smoke halogen -free cross -linked polyolefin outer sheath is provided with the copper conductor outside, the utility model relates to wire and cable manufacturing technical field, the beneficial effect of the case is: the electromagnetic compatibility irradiation cross -linked high molecular polymer layer of this cable can be extruded production with high -voltage insulation layer simultaneously, has improved production efficiency and quality stability greatly, and this layer adds nanometer conductive non -metal and metal modified material, effectively absorbs electromagnetic wave, promotes electromagnetic compatibility performance, satisfies the requirement of new energy automobile to the performance of high -voltage flexible cable unceasingly improves.

Description

Technical Field

[0001] This utility model relates to the field of wire and cable manufacturing technology, specifically to a new type of electromagnetic compatibility material high-voltage cable for new energy vehicles. Background Technology

[0002] The shielding layer of high-voltage flexible cables used in existing new energy vehicles is usually made of tinned copper wire braided and wrapped with aluminum-plastic composite tape to meet electromagnetic compatibility requirements; However, the traditional shielding structure of high-voltage flexible cables used in new energy vehicles uses tin-plated copper wire braiding as the inner layer and aluminum-plastic composite tape wrapping as the outer layer. Aluminum foil wrapping has low production efficiency, is not suitable for large-angle bending during wire harness processing, and is prone to electrochemical corrosion and aging after long-term use, affecting the shielding effect. Utility Model Content

[0003] To achieve the above objectives, this utility model is implemented through the following technical solution: a new type of electromagnetic compatibility material high-voltage cable for new energy vehicles, comprising a copper conductor, a low-smoke halogen-free cross-linked polyolefin insulation layer disposed on the outside of the copper conductor, an electromagnetic compatibility radiation-crosslinked polymer layer disposed on the outside of the low-smoke halogen-free cross-linked polyolefin insulation layer, a metal shielding layer disposed on the outside of the electromagnetic compatibility radiation-crosslinked polymer layer, and a low-smoke halogen-free cross-linked polyolefin outer sheath disposed on the outside of the metal shielding layer.

[0004] In the above scheme: nano-conductive non-metallic materials and metal-modified materials are added inside the electromagnetic compatibility irradiation cross-linked polymer layer.

[0005] In the above scheme: the metal shielding layer is a tin-plated copper wire woven mesh layer, the weaving angle of the tin-plated copper wire woven mesh layer is 45° to 60°, and the weaving density of the copper wire woven mesh is greater than 80%.

[0006] This utility model provides a novel electromagnetic compatibility material high-voltage cable for new energy vehicles, which has the following beneficial effects: 1. The cable adopts a low-smoke halogen-free cross-linked polyolefin insulation layer combined with an electromagnetic compatibility irradiated cross-linked polymer layer, which effectively improves the cable performance. Traditional cables use aluminum-plastic composite tape to wrap the outer layer, which has low production efficiency, is inconvenient for large-angle bending, and is also prone to electrochemical corrosion and aging. However, the electromagnetic compatibility irradiated cross-linked polymer layer of this cable can be extruded and produced at the same time as the high-voltage insulation layer, which greatly improves production efficiency and quality stability. In addition, the addition of nano-conductive non-metallic and metal-modified materials to this layer effectively absorbs electromagnetic waves, improves electromagnetic compatibility performance, and meets the ever-increasing requirements of new energy vehicles for the performance of high-voltage flexible cables. 2. The use of a metal shielding layer improves the cable's flexibility and long-term stability. It not only better adapts to various bending requirements during processing, but also ensures good shielding performance due to its high braiding density. It also has good compatibility with the inner electromagnetic compatibility radiation cross-linked polymer layer, meeting the requirements for long-term stable use and providing a reliable guarantee for the safe and stable operation of new energy vehicles. Attached Figure Description

[0007] Figure 1 This is a schematic diagram of the main structure of this utility model.

[0008] In the diagram: 1. Copper conductor; 2. Low-smoke halogen-free cross-linked polyolefin insulation layer; 3. Electromagnetic compatibility irradiated cross-linked polymer layer; 4. Metal shielding layer; 5. Low-smoke halogen-free cross-linked polyolefin outer sheath. Detailed Implementation

[0009] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Example

[0010] Please see Figure 1 A new type of electromagnetic compatibility material high-voltage cable for new energy vehicles includes a copper conductor 1, a low-smoke halogen-free cross-linked polyolefin insulation layer 2 on the outside of the copper conductor 1, an electromagnetic compatibility irradiated cross-linked polymer layer 3 on the outside of the low-smoke halogen-free cross-linked polyolefin insulation layer 2, a metal shielding layer 4 on the outside of the electromagnetic compatibility irradiated cross-linked polymer layer 3, and a low-smoke halogen-free cross-linked polyolefin outer sheath 5 on the outside of the metal shielding layer 4. It should be noted that this technical solution uses a new type of electromagnetic compatibility material applied to high-voltage cables for new energy vehicles, replacing the original aluminum-plastic composite tape wrapping shielding layer. This cable uses high molecular polymer as the base material, adds nano-level non-metallic conductive material to improve the dispersion uniformity of the material, and adds special metal powder, which has good absorption characteristics for electromagnetic waves. During cable production, the high-voltage insulation layer is extruded simultaneously, which effectively improves production efficiency and quality stability. It is also cross-linked with the insulation layer by electron accelerator irradiation at the same time to meet the requirements of long-term high-temperature use. This shielding layer has good peel performance with the insulation layer, which facilitates the processing of the end. The metal shielding layer 4 is made of tin-plated copper wire woven mesh. The weaving angle of the tin-plated copper wire woven mesh is 45° to 60°, and the weaving density of the copper wire woven mesh is greater than 80%. It improves the cable's flexibility and long-term stability, not only better adapting to various bending requirements during processing, but also ensuring good shielding performance due to its high braiding density, and has good compatibility with the outer tinned copper wire braid layer, which can meet the requirements for long-term stable use. The electromagnetic compatibility radiation-crosslinked polymer layer 3 incorporates nano-conductive non-metallic and metal-modified materials, effectively absorbing electromagnetic waves and enhancing electromagnetic compatibility performance to meet the ever-increasing performance requirements of high-voltage flexible cables for new energy vehicles.

[0011] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A novel electromagnetic compatibility material high-voltage cable for new energy vehicles, comprising a copper conductor (1), characterized in that, The copper conductor (1) is provided with a low-smoke halogen-free cross-linked polyolefin insulation layer (2) on the outside, an electromagnetic compatibility irradiated cross-linked polymer layer (3) is provided on the outside of the low-smoke halogen-free cross-linked polyolefin insulation layer (2), a metal shielding layer (4) is provided on the outside of the electromagnetic compatibility irradiated cross-linked polymer layer (3), and a low-smoke halogen-free cross-linked polyolefin outer sheath (5) is provided on the outside of the metal shielding layer (4).

2. The high-voltage cable of a novel electromagnetic compatibility material for new energy vehicles according to claim 1, characterized in that, The metal shielding layer (4) is made of tin-plated copper wire woven mesh, the weaving angle of the tin-plated copper wire woven mesh is 45° to 60°, and the weaving density of the copper wire woven mesh is greater than 80%.

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