High-ultraviolet-resistance waterproof rat-proof and ant-proof photovoltaic cable

Abstract

The utility model provides a highly ultraviolet-resistant, waterproof, rat-proof and ant-proof photovoltaic cable, relates to the photovoltaic cable technology, and particularly discloses an outer protective sleeve, a plurality of core wire structures and a steel rope, the plurality of core wire structures are arranged in the outer protective sleeve in a penetrating manner, and the plurality of core wire structures are encircled to form an annular structure; the steel rope penetrates through the annular structure and then extends outwards, and a protection structure used for protecting the cable is arranged in the outer protection sleeve. The protection structure comprises a spiral supporting piece in a spiral shape, an installation cavity is formed in the spiral supporting piece, the spiral supporting piece is arranged on the outer side wall of the annular structure in a sleeving mode, a plurality of air bags are installed in the installation cavity, and the air bags are all filled with self-drying colloid materials. After the outer protective sleeve is damaged due to external force or occlusion of other animals and the air bag is also damaged, the self-drying colloid material flows out of the air bag and is rapidly solidified to block the damaged position of the outer protective sleeve, the damaged position is repaired, a firm protective layer is formed, and the protective sleeve is suitable for outdoor and industrial environments.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic cable technology, and more specifically, to a high UV-resistant, waterproof, rodent-proof photovoltaic cable. Background Technology

[0002] Photovoltaic cables, also known as photovoltaic special cables, are mainly used in photovoltaic power stations. They have advantages such as high temperature resistance, cold resistance, oil resistance, acid and alkali resistance, UV protection, flame retardancy, environmental protection, and long service life. They are mainly used in harsh climatic conditions and have a service life of more than 25 years. Their characteristics are determined by their special cable insulation and sheath materials.

[0003] However, existing photovoltaic cables still have some drawbacks: Because photovoltaic cables are often exposed to harsh environmental conditions, such as high and low temperatures, ultraviolet radiation, ozone, drastic temperature changes, chemical corrosion, rodent and ant damage, and humid environments, they must withstand pressure, bending, tension, cross-tension loads, and strong impacts. Under these harsh environmental stresses, the cable sheath is easily damaged and absorbs water, which decomposes the cable insulation layer. All of these conditions directly cause certain losses to the cable system and increase the risk of cable short circuits. To adapt to harsh environmental conditions such as wind, sun, rain, frost, and ultraviolet radiation, existing photovoltaic cables mainly use waterproof photovoltaic cables or armored cables. Waterproof photovoltaic cables use aluminum-plastic tape longitudinal wrapping with a polyethylene composite sheath for waterproof performance, while armored cables use double-layer steel tape armor to enhance the cable's compressive strength. However, these two types of cables cannot fully adapt to the comprehensive performance under harsh environments, nor can they prevent damage caused by rodent and ant damage. Utility Model Content

[0004] The purpose of this utility model is to provide a high UV resistance, waterproof and rodent-proof photovoltaic cable, which addresses the shortcomings of existing technologies and solves the problems mentioned in the background.

[0005] The technical solution of this utility model is implemented as follows:

[0006] The utility model provides a high UV-resistant, waterproof, rodent-proof and ant-proof photovoltaic cable, including an outer protective sheath, several core wire structures, and a steel rope. The several core wire structures are all inserted into the outer protective sheath and form a ring structure after being surrounded. The steel rope is inserted into the ring structure and extends outward. The outer protective sheath is provided with a protective structure for protecting the cable.

[0007] The protective structure includes a spiral support member, which has an installation chamber inside. The spiral support member is fitted onto the outer wall of the annular structure. Multiple airbags are installed in the installation chamber, and each airbag is filled with a self-drying gel material.

[0008] In some technical solutions of this utility model, an armor layer is provided on the outer side of the annular structure, and a protective structure is installed between the armor layer and the outer protective sleeve.

[0009] In some technical solutions of this utility model, the spiral channel formed by the armor layer, the spiral support, and the outer protective sleeve is filled with insect repellent powder.

[0010] In some technical solutions of this utility model, a moisture-proof filling layer is filled between the armor layer and several core wire structures.

[0011] In some technical solutions of this utility model, the core wire structure includes a core wire and an inner protective sleeve, with the inner protective sleeve fitted onto the outer wall of the core wire.

[0012] In some technical solutions of this utility model, a spiral protective strip is wrapped around the outer side wall of the outer protective sleeve.

[0013] In some technical solutions of this utility model, a flame-retardant nylon layer is provided on the inner wall of the armor layer.

[0014] Compared to existing technologies, this invention has at least the following advantages or beneficial effects: The spiral support can buffer the core wire, preventing deformation of the outer protective sheath caused by external force, which could lead to damage to the internal wire harness within the outer protective sheath. The spiral support is fitted onto the outer wall of the annular structure, thus securing the cable. An installation chamber is provided within the spiral support, containing multiple airbags, each filled with a self-drying adhesive material. This self-drying adhesive material is a self-drying alkyd resin, which dries in the air to form a robust protective layer suitable for outdoor and industrial environments. Therefore, if the outer protective sheath is damaged by external force or biting by other animals, and the airbags within the spiral support also rupture, the self-drying adhesive material will leak from the airbags, quickly sealing the damaged area and repairing it, forming a robust protective layer suitable for outdoor and industrial environments. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a schematic diagram of the internal structure of this utility model.

[0017] Figure 3 This is a side view of the structure of this utility model.

[0018] Figure 4 This is a partial cross-sectional view of the spiral support component in this utility model.

[0019] Reference numerals: 1. Outer protective sleeve; 2. Armor layer; 3. Spiral support component; 4. Inner protective sleeve; 5. Core wire; 6. Steel rope; 7. Moisture-proof filling layer; 8. Airbag. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0022] Example

[0023] This utility model provides a high UV-resistant, waterproof, rodent- and ant-proof photovoltaic cable, such as... Figure 1 , Figure 2As shown, the cable includes an outer protective sleeve 1, which protects the cable structure. The outer protective sleeve 1 is made of LSZH cable material, a low-smoke, halogen-free, flame-retardant cable material. It also includes several core wire structures and a steel rope 6. The steel rope 6 passes through several supporting structures and extends outwards, acting as a skeleton to ensure the cable has sufficient toughness and prevents breakage during later tensioning. Several core wire structures are threaded within the outer protective sleeve 1, forming a ring structure. The number of core wire structures is three, avoiding excessively large core wires that would hinder later installation. The steel rope 6, threaded through the ring structure and extending outwards, fills the gaps between the three core wire structures within the outer protective sleeve 1 and prevents relative displacement. The outer protective sleeve 1 contains a protective structure for the cable. This protective structure includes a spiral support 3, made of rubber that does not drip during combustion and possesses a certain degree of toughness, providing cushioning for the core wires. If the cable is subjected to external pressure causing deformation of the outer protective sleeve 1, the internal wiring harness within the outer protective sleeve 1 will not be damaged due to the protection of the spiral support member 3. The spiral support member 3 has an installation chamber and is fitted onto the outer wall of the annular structure, thus allowing the spiral support member 3 to bind three cables. Multiple airbags 8 are installed within the installation chamber. Each airbag 8 has a thin-layer structure and a large inner wall, and is filled with a self-drying adhesive material. This self-drying adhesive material is a self-drying alkyd resin that dries in the air, forming a robust protective layer suitable for outdoor and industrial environments. Therefore, if the outer protective sleeve 1 is damaged by external force or biting by other animals, causing damage to the airbags 8 within the spiral support member 3, the self-drying adhesive material will leak out from the airbags 8, quickly sealing the damaged area of ​​the outer protective sleeve 1, repairing it, and forming a robust protective layer suitable for outdoor and industrial environments.

[0024] In some technical solutions of this utility model, an armor layer 2 is sleeved on the outer side of the annular structure, and a protective structure is installed between the armor layer 2 and the outer protective sleeve 1. The armor layer 2 is woven from metal strips or wires and has extremely high mechanical strength. This allows the cable to withstand greater tensile, compressive, and compressive forces during use, effectively resisting damage from external physical factors. Furthermore, the armor layer is made of metal and has good conductivity and magnetic permeability, effectively absorbing and reflecting external electromagnetic interference signals, providing a relatively clean environment for signal transmission inside the cable.

[0025] In some technical solutions of this utility model, the spiral channel formed by the armor layer 2, the spiral support 3, and the outer protective sleeve 1 is filled with insect repellent powder. The insect repellent powder is a chemical preparation used to prevent cables from being chewed by rodents and insects; it typically contains specific chemical components and is a conventional technology. When the outer protective sleeve 1 is damaged by external force or biting by other animals, the insect repellent filling the spiral channel produces a strong odor that stimulates the sense of smell and taste of rodents and insects, thereby effectively preventing them from damaging the cable.

[0026] In some technical solutions of this utility model, a moisture-proof filling layer is filled between the armor layer 2 and several core wire structures. The moisture-proof filling layer is a mixture of halogen-free filler rope and water-swellable particles. The water-swellable particles fill the interlayer of the restricting mesh. These particles expand when they encounter moisture, forming a sealing layer that effectively prevents moisture intrusion. The raw materials for preparing the water-swellable particles include natural rubber, superabsorbent resin, sulfur, and dibenzothiazole disulfide. The halogen-free filler rope has good electrical insulation and flexibility, and will not rot when filled in the cable for a long time, making the cable less susceptible to moisture and humidity intrusion. The moisture-proof filling layer can effectively prevent conductor oxidation and insulation degradation, ensuring the stable operation of the cable.

[0027] In some technical solutions of this utility model, the core wire structure includes a core wire 5 and an inner protective sleeve 4, which is fitted onto the outer wall of the core wire 5. The aforementioned inner protective sleeve 4 can provide secondary protection for the core wire 5, ensuring that the core wire 5 is not easily damaged by external forces and improving the service life of the cable.

[0028] In some technical solutions of this utility model, a spiral protective strip is wound around the outer wall of the outer protective sleeve 1. Not shown in the drawings, the protective strip is a rubber strip, which is attached to the outer wall of the outer protective sleeve 1. This can further improve the cushioning effect of the outer protective sleeve 1. The protective strip is made of a high-temperature resistant and bite-resistant rubber material, which has high UV resistance. In this way, the protective strip can be sacrificed for the outer protective sleeve 1, thus extending the service life of the outer protective sleeve 1.

[0029] In some technical solutions of this utility model, a flame-retardant nylon layer is provided on the inner wall of the armor layer 2. The flame-retardant nylon layer has a sleeve-like structure. The flame-retardant nylon layer refers to a material layer in which flame retardants are added to nylon material or it undergoes other modification treatments to give it excellent flame-retardant properties. In this way, the flame can be retarded for cables in a burning state, and the spread of fire can be slowed down.

[0030] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A high UV-resistant, waterproof, rodent- and ant-proof photovoltaic cable, characterized in that, It includes an outer protective sleeve (1), several core wire structures and a steel rope (6). Several core wire structures are all inserted into the outer protective sleeve (1), and the several core wire structures form a ring structure after being surrounded. The steel rope (6) is inserted into the ring structure and extends outward. The outer protective sleeve (1) is provided with a protective structure for protecting the cable. The protective structure includes a spiral support member (3) in a spiral shape, and an installation chamber is provided inside the spiral support member (3). The spiral support member (3) is sleeved on the outer wall of the annular structure. Multiple airbags (8) are installed in the installation chamber, and each airbag (8) is filled with a self-drying gel material.

2. The high UV resistance, waterproof, rodent-proof, and termite-proof photovoltaic cable according to claim 1, characterized in that, An armor layer (2) is provided on the outer side of the annular structure, and the protective structure is installed between the armor layer (2) and the outer protective sleeve (1).

3. The high UV resistance, waterproof, rodent-proof, and ant-proof photovoltaic cable according to claim 2, characterized in that, The spiral channel formed by the armor layer (2), the spiral support (3), and the outer protective sleeve (1) is filled with insect repellent powder.

4. The high UV resistance, waterproof, rodent-proof, and ant-proof photovoltaic cable according to claim 3, characterized in that, A moisture-proof filling layer is filled between the armor layer (2) and each of the core wire structures.

5. The high UV resistance, waterproof, rodent-proof, and ant-proof photovoltaic cable according to claim 3, characterized in that, The core wire structure includes a core wire (5) and an inner protective sleeve (4), the inner protective sleeve (4) being fitted onto the outer wall of the core wire (5).

6. A high UV-resistant, waterproof, rodent- and ant-proof photovoltaic cable according to any one of claims 1-5, characterized in that, The outer protective sleeve (1) has a spiral protective strip wrapped around its outer side wall.

7. A high UV-resistant, waterproof, rodent- and ant-proof photovoltaic cable according to claim 2, characterized in that, The inner wall of the armor layer (2) is provided with a flame-retardant nylon layer.

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