Cable for energy storage equipment and energy storage system

Abstract

The utility model relates to a cable for energy storage equipment and an energy storage system. The cable comprises a high-flexibility conductor, a fireproof layer, an insulating layer, a scratch-resistant layer and a high-temperature coating. The fireproof layer is coated outside the high-flexibility conductor; the insulating layer is coated outside the fireproof layer; the scratch-resistant and wear-resistant layer is coated outside the insulating layer; and the high-temperature coating is coated outside the scratch-resistant layer. According to the cable for the energy storage equipment, the internal structure of the cable can be protected in the moving and dragging process of the cable through the arrangement of the scratch-resistant layer, and the structural stability of the scratch-resistant layer and the high-temperature resistance of the whole cable are further improved through the arrangement of the high-temperature coating outside the scratch-resistant layer; in addition, the fireproof layer is arranged in the cable, so that the cable has relatively good fireproof performance; meanwhile, the high-flexibility conductors are adopted, so that the bending resistance of the cable is further improved; the whole cable is simple in structure, good in scratch and wear resistance, high in high temperature resistance and excellent in bending resistance.

Description

Technical Field

[0001] The utility model relates to the technical field of cables, in particular to a cable for energy storage equipment and an energy storage system. Background Art

[0002] Energy storage is divided into traditional energy storage and new energy storage. Traditional energy storage is the energy storage method such as pumped storage power stations; new energy storage is other energy storage technologies except pumped storage, including new lithium-ion batteries, flow batteries, etc. In the application of the power system, new energy storage essentially solves the problem of unbalanced power generation supply and demand, stores the surplus power generation of new energy such as wind power and photovoltaic power usually, and discharges during the peak electricity consumption period, playing roles such as peak shaving and valley filling, enhancing the stability of the power grid and emergency power supply.

[0003] The existing cables for energy storage equipment have poor scratch and abrasion resistance. When laying cables, the cables are easily worn during the process of moving and dragging, resulting in damage to the insulation layer inside the cables, thereby reducing the insulation performance of the cables and posing potential safety hazards; moreover, the cables for energy storage equipment do not have fire prevention capabilities, and major property losses are likely to occur in case of a fire. Summary of the Utility Model

[0004] Therefore, the technical problem to be solved by the utility model is to overcome the problems that the existing cables for energy storage equipment have poor scratch and abrasion resistance, the cables are easily worn during the process of moving and dragging when laying cables, resulting in damage to the insulation layer inside the cables, thereby reducing the insulation performance of the cables and posing potential safety hazards; moreover, the cables for energy storage equipment do not have fire prevention capabilities, and major property losses are likely to occur in case of a fire.

[0005] To solve the above technical problems, the utility model provides a cable for energy storage equipment, including,

[0006] A high-flexibility conductor;

[0007] A refractory layer, the refractory layer is coated outside the high-flexibility conductor;

[0008] An insulation layer, the insulation layer is coated outside the refractory layer;

[0009] A scratch and abrasion resistant layer, the scratch and abrasion resistant layer is coated outside the insulation layer;

[0010] A high-temperature coating, the high-temperature coating is coated outside the scratch and abrasion resistant layer.

[0011] In an embodiment of the utility model, the high-flexibility conductor is formed by stranding a plurality of tinned copper wires.

[0012] In an embodiment of the utility model, the refractory layer includes a base material, the base material is in a strip structure, and both sides of the base material are covered with a reinforcing layer.

[0013] In an embodiment of the present utility model, the base material is made of synthetic mica paper, and the reinforcing layer is made of fiberglass cloth.

[0014] In an embodiment of the present utility model, the reinforcing layer is bonded to the base material through a silicone resin adhesive.

[0015] In an embodiment of the present utility model, the insulating layer is made of a special high-softness silicone rubber material.

[0016] In an embodiment of the present utility model, the scratch-resistant layer is a woven structure made of special aramid filaments.

[0017] In an embodiment of the present utility model, the high-temperature coating is a silicone resin coating.

[0018] An energy storage system includes a cable for an energy storage device as described in any one of the above.

[0019] The above technical solution of the present utility model has the following advantages compared with the prior art:

[0020] A cable for an energy storage device and an energy storage system according to the present utility model include a highly flexible conductor, a fire-resistant layer, an insulating layer, a scratch-resistant layer, and a high-temperature coating; the fire-resistant layer is coated outside the highly flexible conductor; the insulating layer is coated outside the fire-resistant layer; the scratch-resistant layer is coated outside the insulating layer; the high-temperature coating is coated outside the scratch-resistant layer. The cable for an energy storage device of the present utility model is provided with a scratch-resistant layer, which can protect the internal structure of the cable during the movement and dragging of the cable. And a high-temperature coating is also provided outside the scratch-resistant layer, which can further improve the strength and stability of the scratch-resistant layer and can enhance the high-temperature resistance performance of the entire cable; a fire-resistant layer is also provided inside the cable, making the cable have good fire-resistant performance; at the same time, a highly flexible conductor is adopted to further enhance the bending resistance performance of the entire cable; the structure of the entire cable is simple, with good scratch-resistant performance, strong high-temperature resistance performance, and excellent bending resistance performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to make the content of the present utility model easier to be clearly understood, the following further details the present utility model according to the specific embodiments of the present utility model in conjunction with the drawings, where

[0022] Figure 1 is a schematic diagram of the overall structure of a cable for an energy storage device according to a preferred embodiment of the present utility model;

[0023] Figure 2 is a schematic diagram of the structure of the fire-resistant layer of a cable for an energy storage device according to a preferred embodiment of the present utility model.

[0024] Description of the reference numerals in the drawings: 1. High-flexibility conductor; 2. Fire-resistant layer; 21. Base material; 22. Reinforcing layer; 23. Silicone resin adhesive; 3. Insulating layer; 4. Scratch-resistant layer; 5. High-temperature coating. Detailed implementation manners

[0025] The following further describes the present utility model in conjunction with the drawings and specific embodiments, so that those skilled in the art can better understand the present utility model and be able to implement it, but the embodiments cited do not limit the present utility model.

[0026] Embodiment 1

[0027] Refer to Figure 1 and Figure 2 As shown, a cable for energy storage equipment of the present utility model includes

[0028] A high-flexibility conductor 1;

[0029] A fire-resistant layer 2, and the fire-resistant layer 2 is coated outside the high-flexibility conductor 1;

[0030] An insulating layer 3, and the insulating layer 3 is coated outside the fire-resistant layer 2;

[0031] A scratch-resistant layer 4, and the scratch-resistant layer 4 is coated outside the insulating layer 3;

[0032] A high-temperature coating 5, and the high-temperature coating 5 is coated outside the scratch-resistant layer 4.

[0033] Specifically, the cable for energy storage equipment of the present utility model is provided with a scratch-resistant layer 4. The scratch-resistant layer 4 can protect the internal structure of the cable during the movement and dragging of the cable. And a high-temperature coating 5 is further provided outside the scratch-resistant layer 4. The high-temperature coating 5 can further improve the strength and stability of the scratch-resistant layer 4, and can enhance the high-temperature resistance performance of the entire cable; a fire-resistant layer 2 is also provided inside the cable, so that the cable has good fire-resistant performance; at the same time, a high-flexibility conductor 1 is adopted to further enhance the bending resistance performance of the entire cable; the structure of the entire cable is simple, with good scratch-resistant performance, strong high-temperature resistance performance, and excellent bending resistance performance.

[0034] Furthermore, the high-flexibility conductor 1 is formed by stranding multiple tinned copper wires. Specifically, the conductor formed by stranding multiple tinned copper wires has good flexibility and high antioxidant performance.

[0035] Furthermore, the fire-resistant layer 2 includes a base material 21. The base material 21 is in a strip structure, and reinforcing layers 22 are covered on both surfaces of the base material 21. Specifically, the fire-resistant layer 2 uses synthetic mica paper as the base material 21, and glass fiber cloth as the double-sided reinforcing layer 22, and is bonded with a silicone resin adhesive 23, having excellent high-temperature resistance performance and combustion resistance performance, and can protect the cable in case of a fire.

[0036] Furthermore, the base material 21 is made of synthetic mica paper, and the reinforcing layer 22 is made of fiberglass cloth.

[0037] Furthermore, the reinforcing layer 22 is adhered to the base material through a silicone resin adhesive 23.

[0038] Furthermore, the insulating layer 3 is made of a special high-softness silicone rubber material. Specifically, the special high-softness silicone rubber material has high tear resistance, which is beneficial to improving the bending resistance of the entire cable; and it has a certain high-temperature resistance ability, which can ensure the stable operation of the cable at a relatively high temperature.

[0039] Furthermore, the abrasion-resistant layer 4 is a woven structure made of special aramid fibers. Aramid (benzoylbenzene diamine) is a new type of high-tech synthetic fiber material, which has characteristics such as high tensile strength, high tensile force, low elongation, high fracture strength, high temperature resistance, high flame retardancy, non-melting and non-flammable only carbonized, high chemical resistance, high stability, creep resistance, low linear expansion coefficient, low density, electrical insulator, anti-aging, long life cycle, etc. Its strength is 5-6 times that of steel wire, its toughness is 2 times that of steel wire, and its modulus is 2-3 times that of steel wire or glass fiber, while its weight is only about 1 / 5 of that of steel wire, and it does not decompose or melt at high temperatures. The aramid fibers are woven into a woven structure by a special weaving process, so that the aramid fibers can closely adhere to the outside of the insulating layer 3, ensuring the abrasion-resistant characteristics of the cable.

[0040] Furthermore, the high-temperature coating 5 is a silicone resin coating. Specifically, after the silicone resin coating is applied to the abrasion-resistant layer 4, it needs to be baked for a certain period of time. In this way, the abrasion-resistant layer 4 can be more firmly adhered to the outside of the insulating layer 3, which can make the overall structure of the cable more stable and can improve the high-temperature resistance performance of the cable to a certain extent.

[0041] Embodiment 2

[0042] The present utility model also discloses an energy storage system, including a cable for an energy storage device as in Embodiment 1.

[0043] Obviously, the above embodiments are only examples clearly described and are not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. And the obvious changes or modifications derived therefrom are still within the protection scope of the present utility model.

Claims

1. A cable for an energy storage device, characterized in that, Comprising: A highly flexible conductor formed by stranding multiple tinned copper wires; A fire-resistant layer covering the outside of the highly flexible conductor. The fire-resistant layer includes a base material which is in a strip structure. Both sides of the base material are covered with a reinforcing layer. The base material is made of synthetic mica paper, and the reinforcing layer is made of fiberglass cloth; An insulating layer covering the outside of the fire-resistant layer; A scratch-resistant layer covering the outside of the insulating layer; A high-temperature coating applied to the outside of the scratch-resistant layer.

2. The cable for an energy storage device according to claim 1, wherein: The reinforcing layer is bonded to the base material through a silicone resin adhesive.

3. The cable for an energy storage device according to claim 1, characterized in that: The insulating layer is made of a special highly flexible silicone rubber material.

4. The cable for an energy storage device according to claim 1, characterized in that: The scratch-resistant layer is a woven structure made of special aramid fibers.

5. The cable for an energy storage device according to claim 1, characterized in that: The high-temperature coating is a silicone resin coating.

6. An energy storage system, characterized in that: Including the cable for energy storage devices according to any one of claims 1-5.

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