Power cable for solar photovoltaic power generation equipment

Abstract

A power cable for solar photovoltaic power generation equipment comprises a conductor, an insulating layer, a filling layer and a rubber outer layer, the conductor comprises a plurality of wire cores, and the wire cores are formed by mutually twisting copper wires; the insulating layer wraps the outer side of the wire core; a filling layer and a rubber outer layer are sequentially arranged outside the insulating layer; a protective layer is arranged outside the rubber outer layer, a plurality of light-transmitting grooves are formed in the protective layer, and reflective layers are arranged in the light-transmitting grooves. The cable is good in protection performance, wear-resistant and deformation-resistant, and the service life of the cable is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of power cables, in particular to a power cable for solar photovoltaic power generation equipment. Background Art

[0002] Photovoltaic power generation is based on the principle of photovoltaic effect, using solar cells to directly convert sunlight into electrical energy. It is mainly composed of three parts: solar panels (components), controllers and inverters. The stored electrical energy is transmitted to the power grid or user end through power cables. With the rapid development of solar energy technology, the application of solar energy in China is becoming more and more extensive, and the application of photovoltaic cables is also becoming more and more extensive. The requirements for various specifications of photovoltaic cables are also becoming higher and higher. The current photovoltaic power generation cables mainly have aging, wear and cracking and other damages. Publication No. CN217588493U discloses a photovoltaic cable, which is provided with a first convex The first and second protrusions effectively prevent the impact force from directly acting on the conductor, thereby avoiding damage to the conductor and extending the service life and quality of use of the photovoltaic cable. The buffer plays a role in buffering and unloading, avoiding damage to the conductor or position change, making the use quality of the photovoltaic cable better. By setting an anti-slip layer, the photovoltaic cable is prevented from slipping from the operator's hands when the operator is carrying or grasping the photovoltaic cable, making the use of the photovoltaic cable more convenient. Generally, the outer layer of the cable is composed of wear-resistant rubber, which is prone to cracking after long-term exposure and wear, and has a general pressure-bearing capacity. It is easily deformed by extrusion, which affects the power transmission effect of the core. Utility Model Content

[0003] The utility model provides a power cable for solar photovoltaic power generation equipment, which has good protection, is wear-resistant and deformation-resistant, and prolongs the service life of the cable.

[0004] In order to solve the above technical problems, the technical solution provided by the utility model is:

[0005] A power cable for solar photovoltaic power generation equipment comprises a conductor, an insulating layer, a filling layer and a rubber outer layer, wherein the conductor comprises a plurality of wire cores, the wire cores are composed of copper wires twisted together; the insulating layer is wrapped around the outside of the wire cores; a filling layer and a rubber outer layer are sequentially arranged on the outside of the insulating layer; a protective layer is arranged outside the rubber outer layer, a plurality of light-transmitting grooves are opened on the protective layer, and a reflective layer is arranged inside the light-transmitting grooves.

[0006] A reinforcement layer is arranged outside the filling layer.

[0007] The reinforcement layer is made of galvanized steel.

[0008] A compression-resistant layer is arranged between the reinforcement layer and the rubber outer layer.

[0009] The compression-resistant layer is provided with a plurality of deformation grooves and a plurality of reinforcing rib groups, which are arranged alternately.

[0010] The reflective layer is a silver-black reflective tube cloth.

[0011] The surface of the protective layer is coated with wear-resistant paint.

[0012] The insulating layer is a mica tape insulating layer.

[0013] The filling layer is filled with flame-retardant rock wool rope material.

[0014] The rubber outer layer is a polyurethane rubber layer.

[0015] The advantages of the utility model are: the protective layer is provided to protect the rubber outer layer, and the sunlight is reflected through the silver-black reflective tube cloth, thereby preventing the sunlight from directly shining on the rubber outer layer, thereby preventing the rubber outer layer from being cracked by the sun; the wear-resistant coating coated on the surface of the protective layer further improves the wear resistance of the cable; the compression-resistant layer is provided to improve the compression and deformation resistance of the cable through the deformation and rebound of the deformation groove and the reinforcement ribs themselves; the filling layer is filled with flame-retardant rock wool rope material to improve the flame retardant ability of the cable; the utility model has good protection, wear resistance and deformation resistance, and improves the service life of the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a cross-sectional schematic diagram of the utility model;

[0017] Figure 2 It is a three-dimensional diagram of the appearance of the utility model;

[0018] Figure 3 It is a schematic diagram of the protective layer structure of the utility model;

[0019] As shown in the figure: 1. Wire core; 2. Insulation layer; 3. Filling layer; 4. Reinforcement layer; 5. Compression-resistant layer; 6. Rubber outer layer; 7. Protective layer; 8. Wear-resistant coating layer; 9. Deformation groove; 10. Reinforcement ribs; 11. Light-transmitting groove; 12. Reflective layer. DETAILED DESCRIPTION

[0020] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0021] refer to Figure 1 , Figure 2 , Figure 3A power cable for solar photovoltaic power generation equipment includes a conductor, an insulating layer, a filling layer and a rubber outer layer. The conductor includes a plurality of wire cores 1, and the wire core 1 is composed of copper wires twisted together; the insulating layer 2 is wrapped on the outside of the wire core 1; the filling layer 3 and the rubber outer layer 6 are arranged on the outside of the insulating layer 2 in sequence, and a protective layer 7 is arranged outside the rubber outer layer 6, and a plurality of light-transmitting grooves 11 are opened on the protective layer 7, and a reflective layer 12 is arranged at the bottom of the light-transmitting groove 11. The protective layer 7 can be made of polyvinyl chloride material, and the reflective layer 12 is a silver-black reflective tube cloth. The protective layer 7 protects the rubber outer layer 6. After the sunlight passes through the light-transmitting groove 11, the silver-black reflective tube cloth reflects the sunlight, thereby preventing the sunlight from directly irradiating the rubber outer layer 6, thereby preventing the rubber outer layer 6 from being cracked by the sun. The surface of the protective layer 7 is coated with a wear-resistant coating 8, and the wear-resistant coating can be a graphene wear-resistant coating. The wear-resistant coating 8 coated on the surface of the protective layer can effectively reduce the wear degree of the cable when the cable is dragged, and further improve the wear resistance of the cable.

[0022] Reference Figure 1 The filling layer 3 is provided with a reinforcement layer 4 outside, and the reinforcement layer 4 is made of galvanized steel. The galvanized steel of the reinforcement layer 4 has good corrosion resistance and improves the tensile and compressive resistance of the cable.

[0023] Reference Figure 1 A compression-resistant layer 5 is provided between the reinforcement layer 4 and the rubber outer layer 6. The compression-resistant layer 5 is provided with a plurality of deformation grooves 9 and a plurality of reinforcing rib groups 10, which are arranged alternately. The rubber outer layer 6 is a polyurethane rubber layer. When the cable is squeezed, the pressure causes the reinforcing ribs 10 and the deformation grooves 9 in the compression-resistant layer 5 to deform to bear and buffer the pressure, thereby preventing the internal wire core 1 from being damaged by direct pressure.

[0024] The insulating layer 2 is a mica tape insulating layer.

[0025] The filling layer 3 is filled with flame-retardant rock wool rope material. The filling layer 3 is filled with flame-retardant material, which reinforces the wire core 1 and improves the flame-retardant ability.

[0026] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A power cable for solar photovoltaic power generation equipment, comprising a conductor, an insulating layer, a filling layer and a rubber outer layer, characterized in that: The conductor comprises a plurality of wire cores (1), wherein the wire cores (1) are composed of copper wires twisted together; the insulating layer (2) is wrapped around the outside of the wire core (1); a filling layer (3) and a rubber outer layer (6) are sequentially distributed outside the insulating layer (2); a protective layer (7) is arranged outside the rubber outer layer (6), a plurality of light-transmitting grooves (11) are provided on the protective layer (7), and a light-reflecting layer (12) is arranged inside the light-transmitting grooves (11).

2. A power cable for solar photovoltaic power generation equipment according to claim 1, characterized in that: A reinforcement layer (4) is arranged outside the filling layer (3).

3. A power cable for solar photovoltaic power generation equipment according to claim 2, characterized in that: The reinforcement layer (4) is made of galvanized steel.

4. A power cable for solar photovoltaic power generation equipment according to claim 2, characterized in that: A pressure-resistant layer (5) is provided between the reinforcement layer (4) and the rubber outer layer (6).

5. A power cable for solar photovoltaic power generation equipment according to claim 4, characterized in that: The pressure-resistant layer (5) is provided with a plurality of deformation grooves (9) and a plurality of reinforcing rib groups (10), which are arranged alternately.

6. A power cable for solar photovoltaic power generation equipment according to claim 1, characterized in that: The reflective layer (12) is a silver-black reflective tubular cloth.

7. A power cable for solar photovoltaic power generation equipment according to claim 1, characterized in that: The surface of the protective layer (7) is coated with a wear-resistant coating (8).

8. A power cable for solar photovoltaic power generation equipment according to claim 1, characterized in that: The insulating layer (2) is a mica tape insulating layer.

9. A power cable for solar photovoltaic power generation equipment according to claim 1, characterized in that: The filling layer (3) is filled with rock wool rope material.

10. A power cable for solar photovoltaic power generation equipment according to claim 1, characterized in that: The rubber outer layer (6) is a polyurethane rubber layer.

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