Alternating current charging interface cable for 300A direct current new energy automobile

Abstract

The utility model relates to the technical field of charging cables, in particular to an alternating current charging interface cable for a 300A direct current new energy automobile, which comprises a charging interface cable body, and the charging interface cable body comprises a conductor unit assembly arranged in the charging interface cable body. The conductor unit assembly comprises a first conductor unit, a second conductor unit, a third conductor unit and a fourth conductor unit, the conductor unit assembly is provided with a cabling unit assembly in a matched mode, the charging interface cable body is further filled with a filling cable besides the conductor unit assembly, and a cable inner sheath is arranged outside the conductor unit assembly. According to the alternating current charging interface cable for the 300A direct current new energy automobile provided by the utility model, each unit adopts different conductor materials and insulating materials, so that the stability and the safety of the cable under different current and voltage requirements are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of charging cables, in particular to an AC charging interface cable for 300A DC new energy vehicles. Background Art

[0002] With the popularization of new energy vehicles, the performance requirements for charging interface cables are also getting higher and higher. Especially in high-power DC charging scenarios, the cable needs to withstand large current transmission, and at the same time, it also needs to have excellent electrical insulation performance, abrasion resistance, heat resistance, and sufficient mechanical strength. The traditional cable structure is difficult to meet these requirements. Therefore, it is particularly important to develop a new type of high-performance AC charging interface cable. Summary of the Utility Model

[0003] In order to solve some problems existing in the above-mentioned prior art, the utility model provides an AC charging interface cable for 300A DC new energy vehicles to solve the deficiencies existing in the prior art.

[0004] To achieve the above purpose, the utility model provides an AC charging interface cable for 300A DC new energy vehicles, including a charging interface cable body. The charging interface cable body includes a conductor unit assembly arranged inside the charging interface cable body. The conductor unit assembly includes a first conductor unit, a second conductor unit, a third conductor unit, and a fourth conductor unit. The conductor unit assembly is cooperatively arranged with a stranding unit assembly. In addition to the conductor unit assembly, the charging interface cable body is filled with a filling cable. An inner cable sheath is arranged outside the conductor unit assembly, and a dielectric layer and an outer cable sheath are sequentially arranged outside the inner cable sheath.

[0005] As a further improvement of the utility model, in order to improve the structural stability and safety of the cable, the conductor cross-sectional area of the first conductor unit is 95 mm², which is stranded by multiple 0.30 mm bare copper wires, and the outer layer is coated with 125 °C irradiated cross-linked low-smoke and halogen-free flame-retardant ethylene propylene rubber insulating material with a thickness of 1.20 mm; the conductor cross-sectional area of the second conductor unit is 25 mm², which is stranded by multiple 0.20 mm bare copper wires, and the outer layer is coated with 125 °C irradiated cross-linked low-smoke and halogen-free flame-retardant ethylene propylene rubber insulation with a thickness of 0.90 mm.

[0006] As a further improvement of the present utility model, in order to optimize the cabling structure and enhance the overall strength, the conductor cross-sectional area of the third conductor unit is 4 mm², which is formed by stranding multiple 0.15 mm bare copper wires and bulletproof wires, and is coated with LDPE insulating material with a thickness of 0.90 mm on the outer layer; the fourth conductor unit includes multiple insulated wires with a cross-sectional area of 0.75 mm², and each of the insulated wires is formed by stranding multiple 0.15 mm bare copper wires and bulletproof wires, and is coated with high-density polyethylene insulating material with a thickness of 0.50 mm on the outer layer.

[0007] As a further improvement of the present utility model, in order to further optimize the cabling structure and enhance the overall strength, the cabling unit assembly includes a first cabling unit, a second cabling unit, a third cabling unit and a fourth cabling unit. The first cabling unit is formed by stranding the insulated wires of multiple first conductor units; the second cabling unit is formed by stranding the insulated wires of multiple second conductor units; the third cabling unit is composed of the insulated wires of multiple third conductor units; the interior of the fourth cabling unit contains four cabling groups formed by stranding the insulated wires of the fourth conductor unit.

[0008] As a further improvement of the present utility model, in order to improve the electromagnetic shielding effect, non-metallic materials are filled inside the first cabling unit, the second cabling unit, the third cabling unit and the fourth cabling unit, and an aluminum foil shielding layer is wrapped around the outside.

[0009] As a further improvement of the present utility model, in order to improve the wear resistance and corrosion resistance of the cable, the cable inner sheath and the cable outer sheath are made of TPU material, the cable inner sheath and the cable outer sheath are double-extruded, and the filling material of the dielectric layer is filament non-woven fabric.

[0010] When the present utility model works, the first conductor unit uses multiple 0.30 mm bare copper wires for stranding to form a conductor with a cross-sectional area of 95 mm², and then is coated with 125 °C irradiated cross-linked low-smoke and halogen-free flame-retardant ethylene-propylene rubber insulating material with a thickness of 1.20 mm on the outer layer; the second conductor unit is stranded by multiple 0.20 mm bare copper wires to form a conductor with a cross-sectional area of 25 mm², and is coated with 125 °C irradiated cross-linked low-smoke and halogen-free flame-retardant ethylene-propylene rubber insulating material with a thickness of 0.90 mm on the outer layer; the third conductor unit is stranded by multiple 0.15 mm bare copper wires and bulletproof wires to form a conductor with a cross-sectional area of 4 mm², and is coated with LDPE insulating material with a thickness of 0.90 mm on the outer layer; the fourth conductor unit contains multiple insulated wires with a cross-sectional area of 0.75 mm², and the insulated wires are formed by stranding multiple 0.15 mm bare copper wires and bulletproof wires, and are coated with high-density polyethylene insulating material with a thickness of 0.50 mm on the outer layer.

[0011] Strand the insulated wires of multiple first conductor units to form a first cable unit, strand the insulated wires of multiple second conductor units to form a second cable unit, the third cable unit is directly composed of the insulated wires of multiple third conductor units, and the fourth cable unit is a cable group formed by stranding the insulated wires of four fourth conductor units inside.

[0012] Fill non-metallic materials inside the first conductor unit, second conductor unit, third conductor unit and fourth conductor unit to enhance the roundness and structural stability of the cable. Wrap an aluminum foil shielding layer outside each cable unit to improve the electromagnetic shielding effect; strand each cable unit according to the design requirements to form the final cable structure. Fill a dielectric layer such as filament non-woven fabric in the outer layer of the cable to further increase the flexibility and protection performance of the cable. Use TPU material to manufacture the inner sheath and outer sheath of the cable through a double-layer co-extrusion process. The inner sheath is made of natural TPU material, and the outer sheath is made of black matte TPU material to enhance the wear resistance, corrosion resistance, waterproof and dustproof performance of the cable.

[0013] The beneficial effects of the present utility model are as follows: The present utility model provides an AC charging interface cable for 300A DC new energy vehicles, and the specific beneficial effects are reflected in the following aspects:

[0014] Improve the electrical conductivity and transmission efficiency:

[0015] The first and second conductor units formed by stranding multiple fine copper wires, and the third and fourth conductor units containing bare copper wires and bulletproof wires effectively increase the surface area of the conductor, reduce the resistance, and improve the transmission efficiency of the current, which is particularly suitable for the 300A DC new energy vehicle charging scenario with high current requirements.

[0016] Enhance the insulation performance and safety:

[0017] The 125°C irradiated cross-linked low-smoke and halogen-free flame-retardant ethylene-propylene rubber insulating material coated on the outer layer of the first and second conductor units, and the LDPE and high-density polyethylene insulating materials used for the third and fourth conductor units both have good insulation performance and flame retardancy, ensuring the safety and reliability of the cable during long-term use.

[0018] Improve the structural stability and durability:

[0019] Fill non-metallic materials inside the cable unit assembly and wrap an aluminum foil shielding layer outside, which not only enhances the overall structural strength of the cable, but also effectively prevents electromagnetic interference and improves the durability of the cable.

[0020] Optimize the protection performance:

[0021] The double-layer co-extruded cable inner sheath and outer sheath made of TPU material, combined with the long filament non-woven fabric filling of the dielectric layer, provide excellent wear resistance, corrosion resistance, waterproof and dustproof performance, further extend the service life of the cable, and adapt to the complex and changeable outdoor use environment. Brief Description of the Drawings

[0022] For the convenience of those skilled in the art to understand, the following further describes the present utility model in conjunction with the accompanying drawings:

[0023] Figure 1 It is a structural diagram of the present utility model.

[0024] Among them, 1 Conductor unit assembly, 2 First conductor unit, 3 Second conductor unit, 4 Third conductor unit, 5 Fourth conductor unit, 6 Cable stranding unit assembly, 7 Filler cable, 8 Cable inner sheath, 9 Cable outer sheath, 10 Dielectric layer, 11 First cable stranding unit, 12 Second cable stranding unit, 13 Third cable stranding unit, 14 Fourth cable stranding unit, 15 Aluminum foil shielding layer. Detailed Embodiment

[0025] In order to enable those skilled in the art to better understand the technical solutions in this application, the following further describes the present utility model in conjunction with the attached Figure 1 The present utility model is further described. The following embodiments are only used to more clearly illustrate the technical solutions of the present utility model, and cannot be used to limit the protection scope of the present utility model.

[0026] As Figure 1 shown, an AC charging interface cable for a 300A DC new energy vehicle includes a charging interface cable body. The charging interface cable body includes a conductor unit assembly 1 arranged inside the charging interface cable body. The conductor unit assembly 1 includes a first conductor unit 2, a second conductor unit 3, a third conductor unit 4 and a fourth conductor unit 5. The conductor unit assembly 1 is cooperatively provided with a cable stranding unit assembly 6. The charging interface cable body is filled with a filler cable 7 in addition to the conductor unit assembly 1. An inner cable sheath 8 is arranged outside the conductor unit assembly 1, and a dielectric layer 10 and an outer cable sheath 9 are sequentially arranged outside the inner cable sheath 8.

[0027] The conductor cross-sectional area of the first conductor unit 2 is 95 mm², which is stranded by multiple 0.30 mm bare copper wires and is coated with 125 °C irradiated cross-linked low-smoke and halogen-free flame-retardant ethylene propylene rubber insulating material with a thickness of 1.20 mm; the conductor cross-sectional area of the second conductor unit 3 is 25 mm², which is stranded by multiple 0.20 mm bare copper wires and is coated with 125 °C irradiated cross-linked low-smoke and halogen-free flame-retardant ethylene propylene rubber insulation with a thickness of 0.90 mm.

[0028] The conductor cross-sectional area of the third conductor unit 4 is 4 mm², which is formed by stranding multiple 0.15 mm bare copper wires and bulletproof wires, and is coated with LDPE insulating material with a thickness of 0.90 mm on the outer layer; the fourth conductor unit 5 includes multiple insulated wires with a cross-sectional area of 0.75 mm², and each of the insulated wires is formed by stranding multiple 0.15 mm bare copper wires and bulletproof wires, and is coated with high-density polyethylene insulating material with a thickness of 0.50 mm on the outer layer.

[0029] The cable unit assembly 6 includes a first cable unit 11, a second cable unit 12, a third cable unit 13 and a fourth cable unit 14. The first cable unit 11 is formed by stranding the insulated wires of multiple first conductor units 2; the second cable unit 12 is formed by stranding the insulated wires of multiple second conductor units 3; the third cable unit 13 is composed of the insulated wires of multiple third conductor units 4; the interior of the fourth cable unit 14 contains four cable groups formed by stranding the insulated wires of the fourth conductor unit 5.

[0030] The interiors of the first cable unit 11, the second cable unit 12, the third cable unit 13 and the fourth cable unit 14 are all filled with non-metallic materials, and an aluminum foil shielding layer 15 is wound around the outside.

[0031] The cable inner sheath 8 and the cable outer sheath 9 are made of TPU material, and the cable inner sheath 8 and the cable outer sheath 9 are co-extruded in a double layer, and the filling material of the dielectric layer 10 is filament non-woven fabric.

[0032] When the utility model works, the first conductor unit 2 uses multiple 0.30 mm bare copper wires for stranding to form a conductor with a cross-sectional area of 95 mm², and then is coated with 125 °C irradiated cross-linked low-smoke and halogen-free flame-retardant ethylene propylene rubber insulating material with a thickness of 1.20 mm on the outer layer; the second conductor unit 3 is stranded by multiple 0.20 mm bare copper wires to form a conductor with a cross-sectional area of 25 mm², and is coated with 125 °C irradiated cross-linked low-smoke and halogen-free flame-retardant ethylene propylene rubber insulating material with a thickness of 0.90 mm on the outer layer; the third conductor unit 4 is stranded by multiple 0.15 mm bare copper wires and bulletproof wires to form a conductor with a cross-sectional area of 4 mm², and is coated with LDPE insulating material with a thickness of 0.90 mm on the outer layer; the fourth conductor unit 5 contains multiple insulated wires with a cross-sectional area of 0.75 mm², and the insulated wires are formed by stranding multiple 0.15 mm bare copper wires and bulletproof wires, and are coated with high-density polyethylene insulating material with a thickness of 0.50 mm on the outer layer.

[0033] Strand the insulated wires of multiple first conductor units 2 to form a first cable unit 11, strand the insulated wires of multiple second conductor units 3 to form a second cable unit 12, the third cable unit 13 is directly composed of the insulated wires of multiple third conductor units 4, and the fourth cable unit 14 is a cable group formed by stranding the insulated wires of four fourth conductor units 5 inside.

[0034] Fill non-metallic materials inside the first conductor unit 2, second conductor unit 3, third conductor unit 4 and fourth conductor unit 5 to enhance the roundness and structural stability of the cable. Wrap an aluminum foil shielding layer 15 around the outside of each cable unit to improve the electromagnetic shielding effect; strand each cable unit according to the design requirements to form the final cable structure, and fill a dielectric layer 10 such as filament non-woven fabric in the outer layer of the cable to further increase the flexibility and protection performance of the cable. Use TPU material to manufacture the inner sheath and outer sheath of the cable through a double-layer co-extrusion process. The inner sheath is made of natural color TPU material, and the outer sheath is made of black matte TPU material to enhance the wear resistance, corrosion resistance, waterproof and dustproof performance of the cable.

[0035] The present utility model is not limited to the above embodiments. Based on the technical solutions disclosed in the present utility model, those skilled in the art can make some substitutions and deformations to some of the technical features without creative labor according to the disclosed technical content, and these substitutions and deformations are all within the protection scope of the present utility model.

Claims

1. A 300A DC AC charging interface cable for new energy vehicles, comprising a charging interface cable body, characterized in that: The charging interface cable body comprises a conductor unit assembly (1) arranged inside the charging interface cable body, the conductor unit assembly (1) comprises a first conductor unit (2), a second conductor unit (3), a third conductor unit (4) and a fourth conductor unit (5), the conductor unit assembly (1) is provided with a cabling unit assembly (6) in combination, the charging interface cable body is filled with a filling cable (7) in addition to the conductor unit assembly (1), the conductor unit assembly (1) is provided with a cable inner sheath (8) outside, and the cable inner sheath (8) is provided with a dielectric layer (10) and a cable outer sheath (9) in sequence outside.

2. A 300A DC new energy vehicle AC charging interface cable according to claim 1, characterized in that: The conductor cross-sectional area of ​​the first conductor unit (2) is 95 mm², and is formed by twisting a plurality of 0.30 mm bare copper wires, and the outer layer is coated with a 1.20 mm thick 125°C irradiation cross-linked low-smoke halogen-free flame-retardant ethylene propylene rubber insulation material; the conductor cross-sectional area of ​​the second conductor unit (3) is 25 mm², and is formed by twisting a plurality of 0.20 mm bare copper wires, and the outer layer is coated with a 0.90 mm thick 125°C irradiation cross-linked low-smoke halogen-free flame-retardant ethylene propylene rubber insulation material.

3. The 300A DC AC charging interface cable for new energy vehicles according to claim 1, characterized in that: The conductor cross-sectional area of ​​the third conductor unit (4) is 4 mm², and is formed by twisting a plurality of 0.15 mm bare copper wires and bulletproof wires, and the outer layer is coated with a 0.90 mm thick LDPE insulating material; the fourth conductor unit (5) comprises a plurality of insulated wires with a cross-sectional area of ​​0.75 mm², each of the insulated wires is formed by twisting a plurality of 0.15 mm bare copper wires and bulletproof wires, and the outer layer is coated with a 0.50 mm thick high-density polyethylene insulating material.

4. A 300A DC new energy vehicle AC charging interface cable according to claim 1, characterized in that: The cabling unit assembly (6) comprises a first cabling unit (11), a second cabling unit (12), a third cabling unit (13) and a fourth cabling unit (14), wherein the first cabling unit (11) is formed by twisting together a plurality of insulated conductors of the first conductor unit (2); the second cabling unit (12) is formed by twisting together a plurality of insulated conductors of the second conductor unit (3); the third cabling unit (13) is formed by twisting together a plurality of insulated conductors of the third conductor unit (4); and the fourth cabling unit (14) contains four cabling groups formed by twisting together insulated conductors of the fourth conductor unit (5).

5. A 300A DC new energy vehicle AC charging interface cable according to claim 4, characterized in that: The first cabling unit (11), the second cabling unit (12), the third cabling unit (13) and the fourth cabling unit (14) are all filled with non-metallic materials and are externally wrapped with an aluminum foil shielding layer (15).

6. A 300A DC new energy vehicle AC charging interface cable according to claim 1, characterized in that: The cable inner sheath (8) and the cable outer sheath (9) are made of TPU material, the cable inner sheath (8) and the cable outer sheath (9) are double-layer co-extruded, and the filling material of the dielectric layer (10) is filament non-woven fabric.

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