An anti-interference line for energy storage equipment

Abstract

The present application provides an anti-interference line for energy storage equipment, including: a transmission conductor arranged in the center; an anti-corona layer wrapped around the transmission conductor and formed by an anti-corona enameled wire ring; a semi-conductive layer wrapped around the anti-corona layer; and an insulating layer wrapped around the semi-conductive layer. The transmission conductor formed by a plurality of first bare copper conductors in a bundle arranged in the center will not affect the current carrying capacity, and the anti-corona layer wrapped around the transmission conductor can effectively protect the circuit from interference from external factors and improve the working stability of the circuit; the setting of the semi-conductive layer can ensure that the electric field remains uniform on the surface of the insulating layer, avoid local concentration of the electric field, improve the insulation capacity of the cable, and at the same time, the semi-conductive layer of the cable can play a shielding role, effectively suppress the interference of the external electric field from entering the insulating layer of the cable, prevent the interference of the external electromagnetic field on the cable, and also prevent the interference of the electromagnetic field inside the cable from radiating to the outside world, so as to ensure the normal operation of the equipment.

Description

Technical Field

[0001] The utility model relates to the field of cables, in particular to an anti-interference cable for energy storage equipment. Background Art

[0002] With the rapid development of the new energy industry, the internal connection cables of the new energy storage equipment system are an important part of the entire system, and play a vital role in the stable operation and safety of the equipment. Due to the particularity of the operating environment and usage scenarios of new energy storage equipment, the requirements for internal connection cables are also relatively high.

[0003] The common energy storage cable structure is made of copper and irradiated cross-linked polyolefin, which has little effect on low voltage and low current. However, the current energy storage cables are all high voltage and high current, which are prone to local discharge, causing serious damage to the insulation material, and may eventually lead to insulation breakdown, endangering the normal operation of electrical equipment; and energy storage cables are basically large square wires with thick insulation layers, which are prone to uneven irradiation and affect the quality of the cable. Utility Model Content

[0004] The utility model aims to provide an anti-interference line for energy storage equipment, which overcomes the defect that the existing energy storage line generates partial discharge and seriously damages the insulating material when used in a high voltage and high current environment.

[0005] In order to achieve the above purpose and other related purposes, the utility model provides the following technical solutions:

[0006] An anti-interference line for energy storage equipment, comprising:

[0007] Centrally located transmission conductors;

[0008] An anti-corona layer wrapped around the power transmission conductor and formed by an array of anti-corona enameled wires;

[0009] a semiconductive layer wrapped around the anticorona layer; and,

[0010] An insulating layer is wrapped around the semiconducting layer.

[0011] Preferably, the anti-corona enameled wire comprises a second bare copper conductor and an anti-corona paint coated on the outer surface of the second bare copper conductor.

[0012] Preferably, the anti-corona paint comprises insulating varnish and non-metallic conductor powder mixed with each other.

[0013] Preferably, the anti-corona paint has a thickness of 0.05-0.10 mm.

[0014] Preferably, the transmission conductor comprises a plurality of bundled first bare copper conductors.

[0015] Through the above technical scheme, the transmission conductor formed by a plurality of bundled first bare copper conductors arranged at the center will not affect the carrying current, and the anti-corona layer wrapped around the transmission conductor can effectively protect the circuit from interference from external factors and improve the working stability of the circuit; the setting of the semi-conductive layer can ensure that the electric field remains uniform on the surface of the insulating layer, avoid local concentration of the electric field, and improve the insulation capacity of the cable. At the same time, the semi-conductive layer of the cable can play a shielding role, effectively suppressing the interference of the external electric field from entering the insulating layer of the cable, preventing the external electromagnetic field from interfering with the cable, and also preventing the interference of the electromagnetic field inside the cable from radiating to the outside world, thereby ensuring the normal operation of the equipment.

[0016] Preferably, the insulating layer material is silane self-crosslinking polyolefin.

[0017] Through the above technical solution, due to the limitation of irradiation energy, an overly thick insulation layer cannot be cross-linked by the "irradiation" method. Simply put, the irradiation cannot penetrate, resulting in the possibility of yin and yang sides. One side is irradiated well, and the other side is not heat-resistant. Silane self-crosslinking polyolefin can complete cross-linking under natural conditions due to its own characteristics, so there will be no quality problems with the cable due to the problem of irradiation penetration.

[0018] As described above, the anti-interference wire for energy storage equipment of the utility model has the following beneficial effects:

[0019] The present application provides an anti-interference line for energy storage equipment, including: a transmission conductor arranged in the center; an anti-corona layer wrapped around the transmission conductor and formed by an anti-corona enameled wire ring; a semi-conductive layer wrapped around the anti-corona layer; and an insulating layer wrapped around the semi-conductive layer. The transmission conductor formed by a plurality of first bare copper conductors in a bundle arranged in the center will not affect the current carrying capacity, and the anti-corona layer wrapped around the transmission conductor can effectively protect the circuit from interference from external factors and improve the working stability of the circuit; the setting of the semi-conductive layer can ensure that the electric field remains uniform on the surface of the insulating layer, avoid local concentration of the electric field, improve the insulation capacity of the cable, and at the same time, the semi-conductive layer of the cable can play a shielding role, effectively suppress the interference of the external electric field from entering the insulating layer of the cable, prevent the interference of the external electromagnetic field on the cable, and also prevent the interference of the electromagnetic field inside the cable from radiating to the outside world, so as to ensure the normal operation of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 Shown is a schematic cross-sectional diagram of an anti-interference line for an energy storage device disclosed in an embodiment of the utility model.

[0021] Description of technical feature numbers in the accompanying drawings:

[0022] 1. Power transmission conductor; 11. First bare copper conductor; 2. Anti-corona layer; 21. Anti-corona enameled wire; 211. Second bare copper conductor; 212. Anti-corona paint; 3. Semi-conductive layer; 4. Insulating layer. DETAILED DESCRIPTION

[0023] The following specific embodiments illustrate the implementation of the present invention, and those familiar with the technology can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0024] See also Figure 1 The utility model provides an anti-interference line for energy storage equipment, comprising: a transmission conductor 1 arranged in the center; an anti-corona layer 2 wrapped around the transmission conductor 1 and formed by an anti-corona enameled wire 21; a semi-conductive layer 3 wrapped around the anti-corona layer 2; and an insulating layer 4 wrapped around the semi-conductive layer 3. Among them, the transmission conductor 1 includes a plurality of bundled first bare copper conductors 11. The anti-corona enameled wire 21 includes a second bare copper conductor 211 and an anti-corona paint 212 coated on the outer surface of the second bare copper conductor 211. Specifically, the anti-corona paint 212 includes mutually mixed insulating varnish and non-metallic conductor powder; the non-metallic conductor is a mixture of carbon black and graphite powder; the thickness of the anti-corona paint 212 is 0.05-0.10mm. The transmission conductor 1 formed by a plurality of bundled first bare copper conductors 11 in the central inner layer will not affect the current carrying capacity, and cooperates with the anti-corona layer 2 wrapped around the outside to effectively protect the circuit from interference from external factors and improve the working stability of the circuit.

[0025] Specifically, the provision of the semi-conductive layer 3 can ensure that the electric field remains uniform on the surface of the insulating layer 4, avoiding local concentration of the electric field, thereby improving the insulation capacity of the cable. At the same time, the cable semi-conductive layer 3 can play a shielding role, effectively suppressing the interference of the external electric field from entering the cable insulating layer 4, preventing the external electromagnetic field from interfering with the cable, and also preventing the interference of the electromagnetic field inside the cable from radiating to the outside world, thereby ensuring the normal operation of the equipment.

[0026] Specifically, the material of the insulating layer 4 is silane self-crosslinking polyolefin. Due to the limitation of radiation energy, an insulating layer 4 that is too thick cannot be crosslinked by "irradiation". In simple terms, the radiation cannot penetrate, resulting in the possibility of positive and negative sides. One side is well irradiated, and the other side is not heat-resistant. Silane self-crosslinking polyolefin can complete crosslinking under natural conditions due to its own characteristics, so there will be no quality problems with the cable due to the problem of radiation penetration.

[0027] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. All equivalent modifications or changes made by those skilled in the art without departing from the spirit and technical ideas disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. An anti-interference line for energy storage equipment, characterized in that: include: A centrally located transmission conductor (1); An anti-corona layer (2) wrapped around the power transmission conductor (1) and formed by an array of anti-corona enameled wires (21); a semiconductive layer (3) wrapped around the anticorona layer (2); and An insulating layer (4) wrapped around the semiconducting layer (3).

2. The anti-interference line for energy storage equipment according to claim 1, characterized in that: The anti-corona enameled wire (21) comprises a second bare copper conductor (211) and an anti-corona paint (212) coated on the outer surface of the second bare copper conductor (211).

3. The anti-interference line for energy storage equipment according to claim 2, characterized in that: The anti-corona paint (212) comprises insulating varnish and non-metallic conductor powder mixed with each other.

4. The anti-interference wire for energy storage equipment according to claim 3, characterized in that: The anti-corona paint (212) has a thickness of 0.05-0.10 mm.

5. The anti-interference line for energy storage equipment according to claim 1, characterized in that: The power transmission conductor (1) comprises a plurality of bundled first bare copper conductors (11).

6. The anti-interference wire for energy storage equipment according to any one of claims 1 to 5, characterized in that: The material of the insulating layer (4) is silane self-crosslinking polyolefin.

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