High-altitude weather-proof waterproof cable

Abstract

A high-altitude weather-proof waterproof cable comprises a conductor layer, a conductor shielding layer is arranged on the outer side of the conductor layer, a main insulating layer is arranged on the outer side of the conductor shielding layer, a self-repairing layer is arranged on the outer side of the main insulating layer, a memory alloy compensation layer is arranged on the outer side of the self-repairing layer, and a waterproof layer is arranged on the outer side of the memory alloy compensation layer. The protective layer is arranged on the outer side of the waterproof layer, and the water guide layer is arranged on the outer side of the protective layer, so that the cable has the advantages that the service life is prolonged, the safety of a rainstorm working condition is improved, and the weather resistance is enhanced.

Description

Technical Field

[0001] This utility model relates to the field of cable technology, and in particular to a high-altitude weather-resistant and waterproof cable. Background Technology

[0002] Cables are a general term for items such as optical cables and electrical cables. Cables have many uses, mainly for control installation, equipment connection, and power transmission. They are a common and indispensable item in daily life. Because cables are electrified, their installation requires special care. Wires and cables play a vital role in power transmission. They raise the electrical energy generated by power plants to high voltage through substations, and then transmit it to the power consumption area through ultra-high voltage cables and overhead bare conductors. Finally, the power is stepped down and distributed through substations to ensure efficient and safe power transmission. Wires and cables are used to connect power plants, substations, and users, and are the infrastructure for realizing power supply.

[0003] Chinese utility model patent application CN202421335615.5 discloses a cross-linked polyethylene insulated wire and cable, including a filler layer. The inner wall of the filler layer is connected to a reinforcing structure, which includes a support, an insulation layer, and a conductor. The outer wall of the support is fixed to the inner wall of the filler layer, and the outer wall of the support is equidistant from the inner wall of the insulation layer. The inner wall of the insulation layer is wrapped and connected to the outer wall of the conductor. This cross-linked polyethylene insulated wire and cable supports the inner side of the insulation layer with the hemp rope material of the support in the reinforcing structure, preventing the insulation layer from deforming and wrinkling due to long-term bending of the cable, thus extending its service life and improving its practicality, meeting the usage requirements. However, this cable has the following problems: First, the cable cannot self-repair when it is scratched or partially punctured. Second, the outer side of the cable cannot accelerate drainage to protect the cable in heavy rain. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by setting an inner buffer layer, a core repair layer, and an outer trigger layer for the self-healing layer to solve the technical problem that the cable cannot self-repair when it is scratched or punctured. Furthermore, by setting a spiral groove on the outer side of the water-conducting layer and a nano-superhydrophobic coating, the invention addresses the technical problem that the cable cannot accelerate drainage and protect the cable during heavy rain.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A high-altitude weather-resistant and waterproof cable includes a conductor layer, a conductor shielding layer outside the conductor layer, a main insulation layer outside the conductor shielding layer, a self-healing layer outside the main insulation layer, a shape memory alloy compensation layer outside the self-healing layer, a water-blocking layer outside the shape memory alloy compensation layer, a protective layer outside the water-blocking layer, and a water-conducting layer outside the protective layer.

[0007] As a preferred embodiment, the outer side of the water-conducting layer is uniformly provided with spiral grooves, the spiral grooves having a uniform depth of 1.8 mm and a uniform pitch of 5 cm, and the outer side of the water-conducting layer is coated with a nano-superhydrophobic coating.

[0008] As a preferred embodiment, the self-healing layer has an inner lining buffer layer on its inner side, a core repair layer on its outer side, and an outer trigger layer on its outer side.

[0009] As a preferred embodiment, the core repair layer is entirely composed of a medium-hardness thermoplastic elastomer.

[0010] As a preferred embodiment, the inner lining buffer layer is made entirely of an ultra-soft thermoplastic elastomer, the outer trigger layer is made entirely of a high-hardness thermoplastic elastomer, and the surface of the outer trigger layer is provided with a microcrack structure.

[0011] As another preferred embodiment, the shape memory alloy compensation layer is entirely made of nickel-titanium alloy, and the shape memory alloy compensation layer is cross-woven in a fishing net shape and included on the outside of the self-healing layer.

[0012] The beneficial effects of this utility model are:

[0013] (1) In this utility model, the cable is self-protected by setting an inner buffer layer, a core repair layer and an outer trigger layer for self-repair. First, the inner buffer layer absorbs the mechanical stress when the cable is bent, preventing the insulation layer of the internal conductor from being damaged by vibration. When the outer protective layer of the cable is damaged and the conductor is exposed, it will cause a local short circuit and generate high temperature. The micro-cracks on the surface of the outer trigger layer will form a "heat flow channel" and rapidly transfer the hot spot temperature to the core repair layer. Then, the medium-hardness thermoplastic elastomer of the core repair layer will begin to soften. At high temperature, the medium-hardness thermoplastic elastomer of the core repair layer will reach the fluidity threshold. When the melt flows, the outer layer is a high-hardness thermoplastic elastomer, which can restrict the lateral flow of the melt and guide it to concentrate and fill the damaged area. At the same time, the inner lining layer is an ultra-soft thermoplastic elastomer, which can maintain elasticity at high temperature and avoid excessive seepage of molten material affecting the conductor. This allows the cable to self-repair when there is local damage, greatly extending the service life of the cable.

[0014] (2) In this utility model, by setting the spiral groove on the outside of the water-conducting layer, when the cable is in heavy rain, the spiral groove will generate centrifugal force to accelerate drainage when the rainwater falls on the outer surface of the cable. At the same time, the nano superhydrophobic coating on the outside of the water-conducting layer causes the water droplets to roll off and carry away pollutants, preventing salt spray crystallization corrosion, and greatly protecting the safety factor of the cable during heavy rain.

[0015] (3) In this utility model, the shape memory alloy compensation layer is made of nickel-titanium alloy to provide a protection mechanism for the cable. When the cable is heated and expands, the shape memory alloy compensation layer is woven into a fishing net shape. The shape and characteristics of the outer side of the self-repairing layer can make it shrink synchronously. When it is cooled and shrinks, the shape memory alloy compensation layer will stretch and tighten, always sticking to the cable to prevent cracking. At the same time, when it rains, the shape memory alloy compensation layer will shrink to enhance the drainage pressure of the outer spiral groove. Secondly, when the cable is damaged and the temperature is abnormal, the shape memory alloy compensation layer will shrink locally to squeeze the self-repairing layer to seal the leak, which greatly increases the weather resistance of the cable.

[0016] In summary, this cable has the advantages of extended service life, improved safety in heavy rain conditions, and enhanced weather resistance, making it particularly suitable for the field of cable technology. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0019] Figure 2 This is a schematic diagram of the outer structure of the water-conducting layer in this utility model.

[0020] Figure 3 This is a schematic diagram of the internal structure of the self-healing layer in this utility model. Detailed Implementation

[0021] The technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0022] Example 1

[0023] like Figures 1 to 3 As shown, this utility model provides a high-altitude weather-resistant and waterproof cable, including a conductor layer 1, a conductor shielding layer 12 on the outside of the conductor layer 1, a main insulation layer 13 on the outside of the conductor shielding layer 12, a self-healing layer 14 on the outside of the main insulation layer 13, a shape memory alloy compensation layer 15 on the outside of the self-healing layer 14, a water-blocking layer 16 on the outside of the shape memory alloy compensation layer 15, a protective layer 17 on the outside of the water-blocking layer 16, and a water-conducting layer 18 on the outside of the protective layer 17.

[0024] Furthermore, the outer side of the water-conducting layer 18 is uniformly provided with spiral grooves 181. The spiral grooves 181 have a uniform groove depth of 0.3mm and a uniform pitch of 5cm. The spiral grooves 181 cause rainwater to fall on the outer surface of the cable during heavy rain, generating centrifugal force to accelerate drainage. The outer side of the water-conducting layer 18 is coated with a nano-superhydrophobic coating. The nano-superhydrophobic coating causes water droplets to roll off and carry away pollutants, preventing salt spray crystallization corrosion and greatly protecting the safety factor of the cable during heavy rain.

[0025] Furthermore, an inner lining buffer layer 141 is provided inside the self-healing layer 14. The inner lining buffer layer 141 can absorb the mechanical stress when the cable is bent, and prevent the inner conductor layer 1 and the main insulation layer 13 from being damaged by vibration. A core repair layer 142 is provided outside the inner lining buffer layer 141, and an outer trigger layer 143 is provided outside the core repair layer 142.

[0026] Furthermore, the core repair layer 142 is an overall medium-hardness thermoplastic elastomer, and the medium-hardness thermoplastic elastomer has a nano-level montmorillonite layer inside, which can greatly improve the thermal conductivity of the material.

[0027] Furthermore, the inner lining buffer layer 141 is entirely made of ultra-soft thermoplastic elastomer, and the outer trigger layer 143 is entirely made of high-hardness thermoplastic elastomer. The surface of the outer trigger layer 143 has a microcrack structure. When the outermost edge of the cable is scratched or partially punctured, the conductor layer 1 is exposed, causing a local short circuit and generating high temperatures. The microcracks on the surface of the outer trigger layer 143 form "heat flow channels," rapidly transferring the hot spot temperature to the core repair layer 142. Then, the medium-hardness thermoplastic elastomer of the core repair layer 142 begins to soften. At high temperatures, the medium-hardness thermoplastic elastomer of the core repair layer 142... The montmorillonite sheets accelerate thermal diffusion, allowing the medium-hardness thermoplastic elastomer to reach the flow threshold more quickly. During molten flow, the outer trigger layer 143, being a high-hardness thermoplastic elastomer, restricts the lateral flow of the melt, guiding it to concentrate and fill the damaged area. Meanwhile, the inner buffer layer 141, being an ultra-soft thermoplastic elastomer, maintains elasticity at high temperatures, preventing excessive seepage of molten material from affecting the conductor. After power is cut off, the temperature drops below 50°C, and the repair material quickly solidifies, enabling the cable to self-repair in the event of localized damage, greatly extending the cable's service life.

[0028] Furthermore, the shape memory alloy compensation layer 15 is entirely made of nickel-titanium alloy. The shape memory alloy compensation layer 15 is cross-woven in a fishing net shape and is included on the outside of the self-healing layer 14. When the cable expands due to heat, the shape memory alloy compensation layer 15, cross-woven in a fishing net shape and included on the outside of the self-healing layer 14, can shrink synchronously. When it shrinks due to cold, the shape memory alloy compensation layer 15 will stretch and tighten, always sticking tightly to the cable to prevent cracking. At the same time, when encountering heavy rain, the shape memory alloy compensation layer 15 will shrink to enhance the drainage pressure of the outer spiral groove 181. Secondly, when the cable is damaged and causes abnormal temperature, the shape memory alloy compensation layer 15 will locally shrink and squeeze the self-healing layer 14 to seal the leak, greatly increasing the weather resistance of the cable.

[0029] Working process: First, during heavy rain, when rainwater falls on the outer surface of the cable, the spiral grooves 181 generate centrifugal force to accelerate drainage. Simultaneously, the nano-superhydrophobic coating on the outer side of the water-conducting layer 18 causes water droplets to roll off and carry away contaminants, preventing salt spray crystallization corrosion and greatly protecting the cable's safety during heavy rain. When the outermost layer of the cable is scratched or partially punctured, the conductor layer 1 is exposed, causing a local short circuit and generating high temperatures. Microcracks on the surface of the outer trigger layer 143 form "heat flow channels," rapidly transferring the hot spot temperature to the core repair layer 142. Then, the medium-hardness thermoplastic coating of the core repair layer 142... The thermoplastic elastomer begins to soften. At high temperatures, the medium-hardness thermoplastic elastomer of the core repair layer 142 reaches the fluidity threshold. When the molten material flows, the outer trigger layer 143, which is entirely made of high-hardness thermoplastic elastomer, can restrict the lateral flow of the molten material and guide it to concentrate and fill the damaged area. At the same time, the inner lining buffer layer 141, which is entirely made of ultra-soft thermoplastic elastomer, can maintain its elasticity at high temperatures and prevent the molten material from excessively seeping down and affecting the conductor. Then, after the power is cut off, the temperature drops to below 50°C, and the repair material quickly solidifies, enabling the cable to self-repair when there is local damage, greatly extending the service life of the cable.

[0030] Secondly, the shape memory alloy compensation layer 15, being made entirely of nickel-titanium alloy, provides a protective mechanism for the cable. When the cable expands due to heat, the shape memory alloy compensation layer 15, woven into a net-like pattern, along with its shape and properties on the outside of the self-healing layer 14, allows it to contract synchronously. When it contracts due to cold, the shape memory alloy compensation layer 15 will stretch and tighten, always adhering tightly to the cable to prevent cracking. In addition, during heavy rain, the shape memory alloy compensation layer 15 will contract to enhance the drainage pressure of the outer spiral groove 181. Furthermore, when cable damage leads to abnormal temperatures, the shape memory alloy compensation layer 15 will locally contract and squeeze the self-healing layer 14 to seal leaks, greatly increasing the cable's weather resistance.

[0031] In the description of this utility model, it should be understood that the terms "front and back", "left and right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the roller or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model.

[0032] Of course, those skilled in the art should understand that the term "a" should be understood as "at least one" or "one or more". That is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple. The term "a" should not be understood as a limitation on the quantity.

[0033] The above description is merely a preferred embodiment of this utility model, but the scope of protection of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art under the technical guidance of this utility model should be included within the scope of protection of this utility model. Therefore, the scope of protection of this utility model should be determined by the scope of the claims.

Claims

1. A high altitude weather resistant waterproof cable, characterized by: It includes conductor layer (1), the conductor layer (1) outside is equipped with conductor shielding layer (12), the conductor shielding layer (12) outside is equipped with main insulation layer (13), the main insulation layer (13) outside is equipped with self-repairing layer (14), the self-repairing layer (14) outside is equipped with memory alloy compensation layer (15), the memory alloy compensation layer (15) outside is equipped with water-blocking layer (16), the water-blocking layer (16) outside is equipped with protective layer (17), the protective layer (17) outside is equipped with water guide layer (18).

2. The weather resistant waterproof cable at high altitude according to claim 1, characterized in that, The water guide layer (18) outside is uniformly provided with spiral groove (181), the spiral groove (181) is uniformly 0.3mm in groove depth, and the pitch is uniformly 5cm, and the water guide layer (18) outside is coated with nano super-hydrophobic coating.

3. The weather resistant waterproof cable at high altitude according to claim 1, characterized in that, The self-repairing layer (14) inside is provided with inner lining buffer layer (141), the inner lining buffer layer (141) outside is provided with core repair layer (142), and the core repair layer (142) outside is provided with outer layer trigger layer (143).

4. The weather resistant waterproof cable at high altitude according to claim 3, characterized in that, The core repair layer (142) is a medium-hard thermoplastic elastomer as a whole.

5. The weather resistant waterproof cable at high altitude according to claim 3, characterized in that, The inner lining buffer layer (141) is an ultra-soft thermoplastic elastomer as a whole, the outer layer trigger layer (143) is a high-hardness thermoplastic elastomer as a whole, and the outer layer trigger layer (143) surface is provided with micro-crack structure.

6. The weather resistant waterproof cable at high altitude according to claim 1, characterized in that, The memory alloy compensation layer (15) is a nickel-titanium alloy as a whole, and the memory alloy compensation layer (15) is cross-woven in a fishing net shape outside the self-repairing layer (14).

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