A high-performance waterproof and seepage-proof energy storage device cable

Abstract

This utility model relates to the field of cable technology and discloses a high-performance waterproof and seepage-proof energy storage device cable, including a connecting conductor. A fixing ring is fixedly connected to the outside of the connecting conductor. An annular groove is formed inside the fixing ring, and a connecting mechanism is provided outside the annular groove. A protective mechanism is provided inside the connecting conductor. The protective mechanism includes a waterproof barrier layer, an insulating support layer fixedly connected inside the waterproof barrier layer, a shielding protective layer fixedly connected outside the insulating support layer, and a temperature-resistant buffer layer fixedly connected outside the shielding protective layer. A protective component is provided inside the temperature-resistant buffer layer. In this utility model, a multi-layered structure works synergistically to form comprehensive protection. The hydrophobicity of the waterproof barrier layer and the water-blocking adhesive's water-swelling properties combine to achieve highly efficient water blocking, comprehensively improving the cable's reliability and adaptability.

Description

Technical Field

[0001] This utility model relates to the field of cable technology, and in particular to a high-performance waterproof and seepage-proof energy storage device cable. Background Technology

[0002] Against the backdrop of accelerated global energy transition and a continuously increasing proportion of renewable energy, energy storage systems, as a key support for achieving power supply and demand balance and ensuring stable grid operation, are seeing their application scenarios expand continuously, from large-scale energy storage power stations to distributed energy storage devices, and further to new energy vehicles, data centers, and other fields. This places increasingly stringent requirements on the reliability and safety of energy storage equipment. Cables, as the "blood vessels" of power transmission in energy storage systems, directly affect the stable operation of the entire system. Especially in complex environments such as outdoor exposure, humid and rainy conditions, and underwater environments, moisture penetration can easily lead to a decline in cable insulation performance, conductor corrosion, and even serious accidents such as short circuits and fires. Therefore, the development of high-performance, waterproof, and impermeable energy storage equipment cables has become an urgent need for industry development. In existing technologies, energy storage device cables typically achieve basic waterproofing and power transmission functions through a multi-layered structural design. Generally, an insulation layer is placed outside the conductor to prevent current leakage and ensure electrical safety; a water-blocking layer, commonly made of aluminum-plastic composite tape, is wrapped around the insulation layer to block radial water penetration; and the outermost layer is a sheath layer, providing mechanical protection and a certain degree of waterproofing and weather resistance. Additionally, some cables fill the gaps between the conductors with water-blocking materials to address longitudinal water penetration. Through the synergistic effect of these structures, the cables meet the usage requirements in typical scenarios to a certain extent. In existing technologies, some devices are equipped with water-blocking layers and filled with water-blocking materials. However, in practical applications, moisture can often penetrate into the cable through multiple pathways. For example, when the cable is subjected to external pressure, bending, or long-term vibration, tiny cracks may appear in the water-blocking layer, and moisture will seep in from the radial gaps, affecting the service life of the cable and the operational safety of the energy storage system. To address the above-mentioned problems, a high-performance waterproof and seepage-proof energy storage device cable is proposed. Utility Model Content

[0003] To overcome the above shortcomings, this utility model provides a high-performance waterproof and seepage-proof energy storage device cable, which aims to improve the problem of multi-directional water seepage in some existing devices.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A high-performance waterproof and seepage-proof energy storage device cable includes a connecting conductor, a fixing ring fixedly connected to the outside of the connecting conductor, an annular groove formed inside the fixing ring, a connecting mechanism disposed outside the annular groove, a protective mechanism disposed inside the connecting conductor, the protective mechanism including a waterproof barrier layer, the outside of the waterproof barrier layer fixedly connected to the inside of the connecting conductor, an insulating support layer fixedly connected inside the waterproof barrier layer, a shielding protective layer fixedly connected outside the insulating support layer, a temperature-resistant buffer layer fixedly connected outside the shielding protective layer, a protective component disposed inside the temperature-resistant buffer layer, and a rotating ring slidably connected to the inside of the annular groove of the fixing ring, two fixing hooks fixedly connected to the outside of the rotating ring, and two fixing blocks fixedly connected to the outside of the rotating ring. As a further description of the above technical solution: The protective component includes a secondary shielding layer, the exterior of which is fixedly connected to the interior of the temperature-resistant buffer layer, and a reinforcing rib layer is fixedly connected to the interior of the secondary shielding layer. As a further description of the above technical solution: A waterproof sealant layer is fixedly connected inside the reinforcing rib layer, and an outer sheath main layer is fixedly connected inside the waterproof sealant layer. As a further description of the above technical solution: The fixing hook is fixedly connected to the outside of the fixing block, and the other fixing block is slidably connected to the outside of the other fixing hook.

[0005] This utility model has the following beneficial effects: 1. In this utility model, a multi-layer structure works together to form all-round protection. The hydrophobicity of the waterproof barrier layer and the water-blocking adhesive's water-swelling properties combine to achieve efficient water blocking. The insulating support layer ensures insulation performance and buffers pressure. The shielding protection layer takes into account both electromagnetic shielding and radial water blocking. The temperature-resistant buffer layer adapts to high and low temperature environments. The protective components enhance shielding and tensile strength. The waterproof sealant layer and the outer sheath main layer further block water penetration and extend lifespan, comprehensively improving the reliability and adaptability of the cable.

[0006] 2. In this utility model, the angle adjustment during cable connection is flexible through the cooperation of the rotating ring and the fixed ring, which can adapt to various installation spaces. The mechanical locking method of the fixed hook and the fixed block not only ensures the stability of the connection and effectively prevents it from becoming a shortcoming in waterproofing, but also avoids damage to the cable body during the connection process, thus improving the overall reliability of use. Attached Figure Description

[0007] Figure 1This is a three-dimensional schematic diagram of a high-performance waterproof and seepage-proof energy storage device cable proposed in this utility model. Figure 2 This is a schematic diagram of the fixing ring structure for a high-performance waterproof and seepage-proof energy storage device cable proposed in this utility model; Figure 3 for Figure 2 Enlarged view of point A in the middle; Figure 4 for Figure 2 Enlarged view of point B in the middle.

[0008] Legend: 1. Connecting wire; 2. Fixing ring; 3. Connecting mechanism; 31. Rotating ring; 32. Fixing block; 33. Fixing hook; 4. Protective mechanism; 41. Waterproof barrier layer; 42. Insulating support layer; 43. Shielding protective layer; 44. Temperature resistant buffer layer; 45. Protective component; 451. Outer sheath main layer; 452. Waterproof sealant layer; 453. Reinforcing rib layer; 454. Secondary shielding layer. Detailed Implementation

[0009] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0010] Reference Figure 1 , Figure 2 and Figure 4 This utility model provides an embodiment of a high-performance waterproof and seepage-proof energy storage device cable, including a connecting wire 1. The connecting wire 1 is made of high-purity tin-plated soft copper wire stranded together to ensure efficient and stable current conduction. A fixing ring 2 is fixedly connected to the outside of the connecting wire 1. The fixing ring 2 is made of high-strength plastic or metal material and plays a role in fixing and limiting the outer structure of the connecting wire 1 to prevent displacement when the cable is bent or vibrated. At the same time, it provides a stable mounting base for the connecting mechanism 3. An annular groove is opened inside the fixing ring 2, and the connecting mechanism 3 is set outside the annular groove. The connecting mechanism 3 is used to realize the rapid docking and sealing between multiple cable segments, ensuring the structural stability and waterproof and seepage-proof performance of the connection part, and facilitating the installation and maintenance of the cable. A protective mechanism 4 is set inside the connecting wire 1. The protective mechanism 4 works in concert through a multi-layer composite structure to achieve all-round protection for the connecting wire 1, including waterproofing, insulation, shielding, temperature resistance, and tensile strength, thereby improving the reliability of the cable in complex environments. The protective mechanism 4 includes a waterproof barrier layer 41, which is made of highly hydrophobic ethylene propylene rubber material and directly and tightly wraps the connecting wire 1. Utilizing the material's properties, it prevents moisture from directly penetrating the wire surface. The interior is filled with a two-component water-blocking sealant, which expands upon contact with water to fill tiny gaps, forming a longitudinal water-blocking barrier. The waterproof barrier layer 41 is externally fixed to the interior of the connecting wire 1. An insulating support layer 42 is internally fixed to the waterproof barrier layer 41. The insulating support layer 42 is made of vapor-phase vulcanized silicone rubber, possessing excellent insulation properties and effectively blocking current leakage. Simultaneously, its good elasticity and toughness buffer external pressure and impact. To prevent insulation damage or structural damage to the connecting wire 1 due to compression, a shielding protective layer 43 is fixedly connected to the outside of the insulation support layer 42. The shielding protective layer 43 is a composite tape of aluminum tape and plastic film, which forms a tight structure through wrapping. It can shield external electromagnetic interference, ensuring the stability of power transmission, and effectively prevent moisture from radially penetrating the cable, thus playing a radial water-blocking and moisture-proof role. A temperature-resistant buffer layer 44 is fixedly connected to the outside of the shielding protective layer 43. The temperature-resistant buffer layer 44 is made of halogen-free, low-smoke, flame-retardant cross-linked polyolefin material, and its molecular structure is more stable after electron beam irradiation treatment. A protective component 45 is set inside the temperature-resistant buffer layer 44 to protect... Component 45 enhances the overall performance of the cable through a multi-layered structure, further improving its tensile strength, bending resistance, shielding, and waterproofing capabilities. Component 45 includes a secondary shielding layer 454, woven from high-density polyester or tinned copper wire. The secondary shielding layer 454 is externally fixed to the interior of the temperature-resistant buffer layer 44. A reinforcing rib layer 453, woven from high-strength glass fiber or aramid fiber, is internally fixed to the secondary shielding layer 454, possessing extremely high tensile strength and fatigue resistance, significantly improving the overall tensile and bending resistance of the cable. The reinforcing rib layer 453 is internally fixed to... The waterproof sealant layer 452 is made of a mixture of butyl rubber and water-blocking powder. It is filled between the reinforcing rib layer 453 and the outer sheath main layer 451 to further block the water penetration path. It can quickly cure to form a rigid seal after contact with water, thereby strengthening the cable's waterproof and anti-permeability capabilities. The outer sheath main layer 451 is fixedly connected inside the waterproof sealant layer 452. The outer sheath main layer 451 is made of a pre-dyed polyester filament high-density braided layer impregnated with asphalt mixed coating and then coated with silicone epoxy resin. It has excellent anti-aging, wear resistance, acid and alkali resistance and flame retardant properties, which can protect the internal structure from external environmental corrosion and extend the service life of the cable.

[0011] Reference Figures 1 to 3The connecting mechanism 3 includes a rotating ring 31, which is made of wear-resistant plastic or metal and can rotate flexibly along the annular groove of the fixed ring 2, allowing the cable to adjust its angle freely during connection. The rotating ring 31 is slidably connected to the inside of the annular groove of the fixed ring 2. The rotating ring 31 is fixedly connected to two fixed hooks 33, which are made of elastic metal sheets and have a certain elastic deformation capability. The rotating ring 31 is fixedly connected to two fixed blocks 32, which are made of the same material as the rotating ring 31 and have grooves on their surfaces that match the barbs of the fixed hooks 33. The blocks are filled with water-resistant sealing material and can enhance the tightness and waterproofness of the connection when locked with the fixed hooks 33. The fixed hooks 33 are fixedly connected to the outside of the fixed blocks 32, and the other fixed block 32 is slidably connected to the outside of the other fixed hook 33.

[0012] Working principle: The waterproof barrier layer 41 directly wraps around the connecting wire 1. The hydrophobicity of the material itself prevents water from directly penetrating the wire surface. If tiny gaps exist, the water-blocking adhesive inside will expand upon contact with water. The insulating support layer 42, made of vapor-phase vulcanized silicone rubber, forms a high-insulation barrier inside the waterproof barrier layer 41. Simultaneously, its elasticity buffers external pressure, preventing insulation damage to the wire due to compression. The shielding layer 43 simultaneously provides electromagnetic shielding and radial water blocking, preventing moisture from intruding from the cable side. The temperature-resistant buffer layer 44 is made of flame-retardant cross-linked polyolefin material. Maintaining structural stability in alternating high and low temperature environments, the internal protective components 45 enhance protection, and the secondary shielding layer 454 enhances electromagnetic shielding through a high-density braided structure. Together with the reinforcing rib layer 453, it improves the overall tensile strength of the cable and reduces structural deformation during bending or dragging. The waterproof sealant layer 452 is filled between the reinforcing rib layer 453 and the outer sheath main layer 451. It quickly cures upon contact with water to form a rigid seal, blocking the path of moisture penetration into the core conductor. The outer sheath main layer 451 uses halogen-free, low-smoke, flame-retardant materials, and its smooth surface reduces moisture retention, extending the cable's service life. The rotating ring 31 of the connecting mechanism 3 can rotate freely along the annular groove of the fixed ring 2, which makes it easy to adjust the angle when the cables are connected to adapt to the needs of different installation spaces. When the two cables are connected, the fixing hook 33 of one cable is inserted into the groove of the fixing block 32 of the other cable through elastic deformation to form a mechanical lock, which prevents the connection point from becoming a weak point in waterproofing and will not damage the cable body structure.

[0013] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-performance waterproof and impermeable energy storage device cable comprising a connecting wire (1), characterized in that: The connecting wire (1) is fixedly connected to a fixing ring (2) on the outside. The fixing ring (2) has an annular groove inside. A connecting mechanism (3) is provided outside the annular groove. A protective mechanism (4) is provided inside the connecting wire (1). The protective mechanism (4) includes a waterproof barrier layer (41), the outside of which is fixedly connected to the inside of the connecting wire (1), an insulating support layer (42) is fixedly connected inside the waterproof barrier layer (41), a shielding protective layer (43) is fixedly connected outside the insulating support layer (42), a temperature-resistant buffer layer (44) is fixedly connected outside the shielding protective layer (43), a protective component (45) is provided inside the temperature-resistant buffer layer (44), and the connecting mechanism (3) includes a rotating ring (31), the outside of which is slidably connected to the inside of the annular groove of the fixed ring (2), two fixing hooks (33) are fixedly connected outside the rotating ring (31), and two fixing blocks (32) are fixedly connected outside the rotating ring (31).

2. The high-performance waterproof and seepage-proof energy storage device cable according to claim 1, characterized in that: The protective component (45) includes a secondary shielding layer (454), the exterior of which is fixedly connected to the interior of the temperature-resistant buffer layer (44), and a reinforcing rib layer (453) is fixedly connected to the interior of the secondary shielding layer (454).

3. The high-performance waterproof and seepage-proof energy storage device cable according to claim 2, characterized in that: The reinforcing rib layer (453) is internally fixedly connected to a waterproof sealant layer (452), and the waterproof sealant layer (452) is internally fixedly connected to an outer sheath main layer (451).

4. The high-performance waterproof and seepage-proof energy storage device cable according to claim 1, characterized in that: The fixing hook (33) is fixedly connected to the outside of the fixing block (32), and the other fixing block (32) is slidably connected to the outside of the other fixing hook (33).

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