AC charging interface cable for 250A DC 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 250A direct current new energy automobile, which comprises a charging interface cable body, and the charging interface cable body comprises a charging conductor assembly arranged in the center of the charging interface cable body. The alternating current charging interface cable for the 250A direct current new energy automobile comprises a charging conductor assembly, a plurality of groups of conductor units are arranged in the charging conductor assembly, a sheath layer is arranged outside the charging conductor assembly in a matched mode, and a dielectric layer is arranged between the sheath layer and the charging conductor assembly. According to the charging interface cable, the main copper body formed by twisting a plurality of strands of fine copper wires is adopted, so that the conductivity and the mechanical strength of the conductor are improved, and the stability and the safety of large-current transmission 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 a 250A DC new energy vehicle. Background Art

[0002] With the popularization of new energy vehicles, the performance requirements for charging interface cables are 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 a 250A DC new energy vehicle to solve the deficiencies existing in the prior art.

[0004] To achieve the above object, the utility model provides an AC charging interface cable for a 250A DC new energy vehicle, including a charging interface cable body. The charging interface cable body includes a charging conductor assembly arranged at the center of the charging interface cable body. There are several groups of conductor units arranged inside the charging conductor assembly. A sheath layer is arranged outside the charging conductor assembly in a matching manner, and a dielectric layer is arranged between the sheath layer and the charging conductor assembly.

[0005] As a further improvement of the utility model, in order to improve the electrical conductivity and mechanical strength of the conductor, the charging conductor assembly includes two signal cable units with a cross-section of 80 mm². There is a main copper body arranged inside the two signal cable units, and the main copper body is formed by stranding a plurality of fine copper wires.

[0006] As a further improvement of the utility model, in addition to the two signal cable units with a cross-section of 80 mm², the charging conductor assembly is also provided with a shielding cable unit with a cross-section of 80 mm², two positioning cable units with a cross-section of 25 mm², and several filling cable units with a cross-section of 0.75 mm² in a matching manner.

[0007] As a further improvement of the utility model, in order to improve the overall performance and applicability of the cable, copper conductors are arranged inside the shielding cable unit, the positioning cable unit, and the filling cable unit in a matching manner. The outside of the signal cable unit and the shielding cable unit is coated with a first shielding layer, and the first shielding layer is made of 125°C irradiated cross-linked low-smoke and halogen-free flame-retardant ethylene propylene rubber insulating material.

[0008] As a further improvement of the present utility model, in order to improve the safety and reliability of the cable, the positioning cable unit and the filling cable unit are externally coated with a second shielding layer, and the second shielding layer is made of LDPE insulating material and high-density polyethylene insulating material.

[0009] As a further improvement of the present utility model, in order to reduce the influence of external electromagnetic interference on the internal signals of the cable, a braided shielding layer is arranged in cooperation with the dielectric layer and the charging conductor assembly. The braided shielding layer is braided with tinned copper wires, and the material of the dielectric layer is filament non-woven fabric.

[0010] As a further improvement of the present utility model, in order to improve the durability and abrasion resistance of the cable, the sheath layer is made of double-layer co-extruded TPU material. The inner layer is a natural color sheath material, and the outer layer is a black matte sheath material.

[0011] When the present utility model works, the charging interface cable body is composed of a plurality of conductor units with different cross-sections, including 2×80mm², 1×25mm², 2×4mm² and a plurality of 0.75mm² conductor units. Each conductor unit is stranded by a plurality of fine copper wires; for the signal cable unit and the shielding cable unit, the first shielding layer of the signal cable unit and the shielding cable unit is made of 125°C irradiated cross-linked low-smoke halogen-free flame-retardant ethylene propylene rubber insulating material, and the second shielding layer of the positioning cable unit and the filling cable unit is made of LDPE insulating material and high-density polyethylene insulating material; a braided shielding layer is arranged in cooperation with the dielectric layer and the charging conductor assembly, and the braided shielding layer is braided with tinned copper wires to improve the anti-interference ability and mechanical protection performance of the cable; the sheath layer is made of double-layer co-extruded TPU material, the inner layer is a natural color sheath material, and the outer layer is a black matte sheath material. The sheath layer not only has good abrasion resistance and weather resistance, but also can effectively protect the internal wire core from the influence of the external environment.

[0012] The beneficial effects of the present utility model are as follows: The present utility model provides an AC charging interface cable for a 250A DC new energy vehicle. The charging interface cable uses a main copper body stranded by a plurality of fine copper wires, which improves the electrical conductivity and mechanical strength of the conductor, and ensures the stability and safety of large-current transmission; the first shielding layer of the signal cable unit and the shielding cable unit is made of 125°C irradiated cross-linked low-smoke halogen-free flame-retardant ethylene propylene rubber insulating material, which has excellent insulation performance, high-temperature resistance performance and flame-retardant performance, and improves the safety and reliability of the cable; the setting of the braided shielding layer effectively reduces the influence of external electromagnetic interference on the internal signals of the cable and ensures the stable transmission of signals; the sheath layer is made of double-layer co-extruded TPU material, the inner layer is a natural color sheath material, and the outer layer is a black matte sheath material. This design improves the durability and abrasion resistance of the cable. Description of the Drawings

[0013] 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:

[0014] Figure 1 This is the structural diagram of the present utility model.

[0015] Among them, 1 is the charging conductor assembly, 2 is the conductor unit, 3 is the sheath layer, 4 is the dielectric layer, 5 is the signal cable unit, 501 is the main copper body, 6 is the shielded cable unit, 7 is the positioning cable unit, 8 is the filling cable unit, 9 is the copper conductor, 10 is the first shielding layer, 11 is the second shielding layer, and 12 is the braided shielding layer. Specific embodiments

[0016] 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.

[0017] As Figure 1 shown, an AC charging interface cable for a 250A DC new energy vehicle includes a charging interface cable body. The charging interface cable body includes a charging conductor assembly 1 arranged at the center of the charging interface cable body. Inside the charging conductor assembly 1, several groups of conductor units 2 are arranged. Outside the charging conductor assembly 1, a sheath layer 3 is cooperatively arranged. A dielectric layer 4 is arranged between the sheath layer 3 and the charging conductor assembly 1.

[0018] The charging conductor assembly 1 includes two signal cable units 5 with a cross-sectional area of 80 mm². Inside the two signal cable units 5, a main copper body 501 is arranged, and the main copper body 501 is formed by stranding multiple strands of fine copper wires.

[0019] In addition to the two signal cable units 5 with a cross-sectional area of 80 mm², the charging conductor assembly 1 is also cooperatively provided with a shielded cable unit 6 with a cross-sectional area of 80 mm², two positioning cable units 7 with a cross-sectional area of 25 mm², and several filling cable units 8 with a cross-sectional area of 0.75 mm².

[0020] Inside the shielded cable unit 6, the positioning cable unit 7, and the filling cable unit 8, copper conductors 9 are cooperatively arranged. The outside of the signal cable unit 5 and the shielded cable unit 6 is coated with a first shielding layer 10, and the first shielding layer 10 is made of 125 °C irradiated cross-linked low-smoke halogen-free flame-retardant ethylene propylene rubber insulating material.

[0021] The outside of the positioning cable unit 7 and the filling cable unit 8 is coated with a second shielding layer 11, and the second shielding layer 11 is made of LDPE insulating material and high-density polyethylene insulating material.

[0022] The dielectric layer 4 and the charging conductor assembly 1 are provided with a braided shielding layer 12. The braided shielding layer 12 is braided with tinned copper wires. The material of the dielectric layer 4 is filament non-woven fabric.

[0023] The sheath layer 3 is made of a double-layer co-extruded TPU material. The inner layer is a natural-colored sheath material, and the outer layer is a black matte sheath material.

[0024] When the utility model works, the charging interface cable body is composed of a plurality of conductor units 2 with different cross-sections, including 2×80mm², 1×25mm², 2×4mm² and a plurality of 0.75mm² conductor units 2. Each conductor unit 2 is stranded by a plurality of fine copper wires; for the signal cable unit 5 and the shielded cable unit 6, the first shielding layer 10 of the signal cable unit 5 and the shielded cable unit 6 is made of a 125°C irradiated cross-linked low-smoke halogen-free flame-retardant ethylene propylene rubber insulating material. The second shielding layer 11 of the positioning cable unit 7 and the filling cable unit 8 is made of LDPE insulating material and high-density polyethylene insulating material; the dielectric layer 4 and the charging conductor assembly 1 are provided with a braided shielding layer 12. The braided shielding layer 12 is braided with tinned copper wires to improve the anti-interference ability and mechanical protection performance of the cable; the sheath layer 3 is made of a double-layer co-extruded TPU material. The inner layer is a natural-colored sheath material, and the outer layer is a black matte sheath material. The sheath layer 3 not only has good abrasion resistance and weather resistance, but also can effectively protect the internal wire core from the external environment.

[0025] The utility model is not limited to the above embodiments. Based on the technical solutions disclosed in the utility model, those skilled in the art can make some substitutions and deformations of some technical features without creative labor according to the disclosed technical content. These substitutions and deformations are all within the protection scope of the utility model.

Claims

1. A 250A DC new energy vehicle AC charging interface cable, comprising a charging interface cable body, characterized in that: The charging interface cable body comprises a charging conductor assembly (1) arranged at the center of the charging interface cable body, a plurality of groups of conductor units (2) are arranged inside the charging conductor assembly (1), a sheath layer (3) is arranged outside the charging conductor assembly (1), and a dielectric layer (4) is arranged between the sheath layer (3) and the charging conductor assembly (1).

2. A 250A DC new energy vehicle AC charging interface cable according to claim 1, characterized in that: The charging conductor assembly (1) comprises two groups of signal cable units (5) with a cross-section of 80 mm², wherein a main copper body (501) is arranged inside the two groups of signal cable units (5), and the main copper body (501) is formed by twisting a plurality of fine copper wires.

3. A 250A DC new energy vehicle AC charging interface cable according to claim 2, characterized in that: In addition to two groups of signal cable units (5) with a cross-section of 80 mm², the charging conductor assembly (1) is also provided with a group of shielded cable units (6) with a cross-section of 80 mm², two groups of positioning cable units (7) with a cross-section of 25 mm², and a plurality of groups of filling cable units (8) with a cross-section of 0.75 mm².

4. A 250A DC new energy vehicle AC charging interface cable according to claim 3, characterized in that: The shielded cable unit (6), the positioning cable unit (7) and the filling cable unit (8) are all provided with a copper conductor (9) inside, and the signal cable unit (5) and the shielded cable unit (6) are coated with a first shielding layer (10) outside, and the first shielding layer (10) is made of 125°C irradiated cross-linked low-smoke halogen-free flame-retardant ethylene-propylene rubber insulation material.

5. A 250A DC new energy vehicle AC charging interface cable according to claim 3, characterized in that: The exterior of the positioning cable unit (7) and the filling cable unit (8) is coated with a second shielding layer (11), and the second shielding layer (11) is made of LDPE insulating material and high-density polyethylene insulating material.

6. A 250A DC new energy vehicle AC charging interface cable according to claim 1, characterized in that: The dielectric layer (4) and the charging conductor assembly (1) are provided with a braided shielding layer (12) in cooperation with each other. The braided shielding layer (12) is braided with tinned copper wires, and the material of the dielectric layer (4) is a filament non-woven fabric.

7. A 250A DC new energy vehicle AC charging interface cable according to claim 1, characterized in that: The sheath layer (3) is made of a double-layer co-extruded TPU material, the inner layer is a natural color sheath material, and the outer layer is a black matte sheath material.

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