New energy resource electric car waterproof shield cable

Abstract

The invention discloses a new energy resource electric car waterproof shield cable. The new energy resource electric car waterproof shield cable comprises two insulated wire cores in the same structure which is a double plying structure, wherein each insulated wire core is formed by a conductor located at the center, and a fireproof low smoke zero halogen irradiation cross linking polyethylene insulation layer, a metal bag tape, a metal net, a fireproof belt and a fireproof low smoke zero halogen irradiation cross linking polyethylene middle quilt, which sequentially wrap the exterior of the conductor in pressing mode, a doubling connection body sleeves the two insulated wire cores, and a thin transparent nylon protecting bush is arranged on the exterior of the doubling connection body. The new energy resource electric car waterproof shield cable has the high performances of preventing water, resisting abrasion, resisting weather, resisting heat, resisting cold, resisting hydrolysis and the like, is suitable for power connection of an electric car charging pile, and can be used as wires used for low voltage cables under severe environment.

Description

technical field [0001] The invention belongs to the field of power cables, and in particular relates to a waterproof shielded cable for a new energy electric vehicle. Background technique [0002] At present, the structure of charging cables for new energy electric vehicles can be divided into: figure 1 , figure 2 , image 3 Several structures mentioned above. Such as figure 1 The cable structure shown is that the conductor is provided with a layer of irradiated cross-linked polyethylene insulating layer 2, the insulating layer 2 is provided with a shielding layer 9, and the shielding layer 9 is provided with a layer of irradiated cross-linked polyethylene sheath 10. The disadvantage of the structure is that there is no waterproof structure, so the use environment can only be under dry conditions; figure 2 The cable construction is described in figure 1 In the structure of the cable, a metal tape 3 is added in the shielding layer 9 and the insulating layer 2, and its...

AI Technical Summary

Problems solved by technology

like figure 1 The cable structure shown is that the conductor is provided with a layer of irradiated cross-linked polyethylene insulating layer 2, the insulating layer 2 is provided with a shielding layer 9, and the shielding layer 9 is provided with a layer of irradiated cross-linked polyethylene sheath 10. The disadvantage of the structure is that there is no waterproof structure, so the use environment can only be under dry conditions; figure 2 The cable construction is described in figure 1 In the structure of the cable, a metal tape 3 is added in the shielding layer 9 and the insulating layer 2, and its defects are the same as figure 1 have the same structure; image 3 The cable structure described in figure 2 On the basis of the above, an outer wrapping tape 11 is added between the shielding layer 9 and the outer jacket 10, and an inner wrapping tape 12 is added between the shielding layer 9 and the insulating layer 2. The material of the outer wrapping tape is not clearly specified. image 3 EPDM rubber is used for the middle insulation, and polyurethane is used for the outer layer. Since pure polymer polyurethane is a small amount of water-absorbing material, it can be regarded as a water-blocking material, but pure polymer polyurethane is not a flame-retardant material, and its ignition temperature is very low. At the same time Polyurethane materials are prone to hydrolysis and aging under high temperature and humidity conditions for a long time

[0003] The cables in the prior art are all single wires. Since the electric vehicle charging power supply is DC, the DC power supply is divided into positive and negative poles. When using a single-wire conductor cable in the prior art, the single wire needs to be integrated before use, which is inconvenient to use.

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