Photovoltaic thermal conductive flame-retardant cable

Abstract

The invention discloses a photovoltaic thermal-conductive flame-retardant cable, and relates to the technical field of cables, the photovoltaic thermal-conductive flame-retardant cable comprises a cable rope, the cable rope is arranged as an outermost sheath on the outermost layer, the outermost sheath is made of a low-smoke halogen-free flame-retardant irradiation crosslinking polyolefin material added with mica powder nanoparticles, a shielding layer is arranged on the inner wall of the outermost sheath, and the shielding layer is arranged on the outer wall of the outermost sheath. The shielding layer is an ultrathin aluminum platinum film, the inner wall of the shielding layer is provided with a middle flame-retardant layer, three conductor cable cores are wrapped in the middle flame-retardant layer, and each conductor cable core is formed by twisting and weaving a plurality of copper wires made of pure copper materials. The connectors at the two ends of the cable ropes are connected through the adapters between every two adjacent cable ropes, butt joint between the two cable ropes is achieved, operation simplicity of the cable can be effectively improved in the later cable replacement and maintenance process, cable replacement efficiency is improved, and labor hours and manpower consumed for cable replacement are reduced.

Description

Technical Field

[0001] The invention relates to the technical field of cables, and in particular to a photovoltaic heat-conducting flame-retardant cable. Background Art

[0002] With the development of the global economy, fossil energy such as coal, oil and natural gas can no longer meet the growing demand and environmental protection requirements. In addition, the political and economic situation in many oil and gas producing areas around the world is unstable, and clean energy has gradually been valued by most regions. Solar energy, as the most important clean energy, has been widely used. Photovoltaic is the abbreviation of solar photovoltaic effect, which refers to the phenomenon that a potential difference is generated between uneven semiconductors or semiconductors and metals when illuminated. It is mainly achieved by using solar panels made of semiconductor materials such as silicon to generate direct current using light, such as solar cells that can be seen everywhere in our daily lives. At present, large-scale photovoltaic power plants are mostly built in the northwest desert area, with harsh working environments such as strong wind and sand, strong ultraviolet rays, and large temperature differences. Photovoltaic cables, as an indispensable power transmission tool, are required to be wind and rain resistant, ultraviolet resistant, ozone corrosion resistant, flame retardant, and resistant to large temperature changes.

[0003] In the prior art, patent 201710595 356 discloses a photovoltaic thermal conductive flame retardant cable. The photovoltaic thermal conductive flame retardant cable includes an outermost sheath, a shielding layer, an intermediate flame retardant layer, a water blocking layer, an innermost protective layer and a conductor cable core from the outside to the inside. Mica powder nanoparticles are added to the material of the outermost sheath, the shielding layer is coated on the inner surface of the outermost sheath, and the shielding layer contains organic silicone resin and AZO nanoparticles. The innermost protective layer is wrapped on the outer surface of the conductor cable core, and the innermost protective layer contains a polystyrene plastic layer and silica nanoparticles. The present invention can ensure good waterproof and corrosion resistance, fire resistance, and shielding of ultraviolet and infrared rays, better protect the conductor cable core, and at the same time have good thermal conductivity and flame retardant effects, further extend the service life of the cable in harsh environments, ensure the stability of cable transmission of power, and greatly reduce the cost of power transmission and maintenance.

[0004] However, these cables still have some shortcomings in actual use, the specific shortcomings are: These cables work in actual harsh environments and still need to be replaced frequently to ensure their own high efficiency and stability, which greatly increases production costs and also causes greater environmental pollution. Summary of the invention

[0005] In view of this, the purpose of the present invention is to provide a photovoltaic thermal conductive flame retardant cable to solve the technical problem that these cables still need to be frequently replaced to ensure their own high efficiency and stability when working in actual harsh environments, which greatly increases production costs and also causes greater environmental pollution.

[0006] To achieve the above object, the present invention is implemented through the following technical solutions: A photovoltaic thermal conductive flame-retardant cable comprises a cable rope, wherein the cable rope is arranged as an outermost sheath of an outermost layer, the outermost sheath is made of a low-smoke, halogen-free, flame-retardant, irradiated cross-linked polyolefin material added with mica powder nanoparticles, the inner wall of the outermost sheath is provided with a shielding layer, the shielding layer is an ultra-thin aluminum-platinum film, the inner wall of the shielding layer is provided with an intermediate flame-retardant layer, the interior of the intermediate flame-retardant layer is wrapped with three conductor cable cores, each of the conductor cable cores is formed by twisting and weaving a plurality of pure copper wires, and this method uses a plurality of fine metal wires for twisting and weaving, which can improve the flexibility and tensile strength of the cable. The multi-filament braiding method is commonly used in power cables and communication cables. The outer wall of each conductor cable core is provided with an innermost protective layer, the innermost protective layer is made of aluminum platinum film, the innermost protective layer is wrapped on the outer wall surface of the conductor cable core, the outer wall of the innermost protective layer is provided with a cable core sheath, the outer wall of the cable core sheath is provided with a waterproof layer, and three waterproof layers are provided with fillers in the middle of the middle flame retardant layer, the filler is talcum powder, talcum powder is a white powder with good lubricity, anti-adhesion and insulation properties. It is commonly used in the manufacturing process of wires and cables to prevent adhesion between the insulating layer and the sheath, which is convenient for wire stripping. In addition, talcum powder also has good heat resistance and chemical corrosion resistance, and is suitable for cables under various environmental conditions.

[0007] As a preferred technical solution of the present invention, a connector is provided at each end of the cable rope, the connector is configured as a cylindrical structure, the outer wall of the connector is provided with an ear plate, there are four ear plates in total, the four ear plates are arranged on the outer wall of the connector at equal intervals around the circumference, a hoop is provided at the bottom of the outer wall of each connector, and a hook is provided on the outer wall of the hoop.

[0008] As a preferred technical solution of the present invention, the hook is rotatably connected to the outer wall of the rotating hoop, and the hook is configured as a circular ring structure.

[0009] As a preferred technical solution of the present invention, a threaded connection port with a circular hole structure is provided at the top of the connector, and two first connection ends are provided at the bottom of the threaded connection port, one of the first connection ends is in a circular ring shape, and the other first connection end is in a concave circular groove shape.

[0010] As a preferred technical solution of the present invention, the top end of the connector is used in conjunction with an adapter, and a plurality of adapters are provided. Each adapter includes threaded connection terminals arranged at both ends of the adapter, and a movable conductive head is arranged at the top end of the threaded connection terminal at each end, and a conductive ring is arranged on the outer periphery of the movable conductive head. The conductive ring and the movable conductive head are arranged at a distance, and the movable conductive head and the conductive ring are both made of conductive metal.

[0011] As a preferred technical solution of the present invention, a cap is installed at each end of the adapter, and a cap groove is provided on the bottom surface of each cap. The inner wall of the cap groove is provided with a threaded surface that spirally cooperates with the outer wall of the threaded connection terminal, and the top surface of the inner wall of the cap groove is set as an arc surface.

[0012] As a preferred technical solution of the present invention, each of the movable conductive heads includes a spring groove opened at the top of the threaded connection terminal, an elastic contact head is slidably connected in the spring groove, the elastic contact head extends out of the top surface of the threaded connection terminal, and a spring is arranged on the top of the elastic contact head slidably connected in the spring groove.

[0013] As a preferred technical solution of the present invention, the top end surface of the elastic contact head is in a semi-spherical shape with an arc structure.

[0014] As a preferred technical solution of the present invention, the top end of the adapter can be adapted to a conical connector with a threaded hole connector. There are two types of conical connectors, one with a plug on the surface of the conical connector and the other with a socket on the surface of the conical connector.

[0015] As a preferred technical solution of the present invention, the adapter is a round rod structure, a circular arc waistline is arranged in the middle of the adapter, and the waistline is a smooth circular arc surface.

[0016] The two adjacent cables of the present invention are connected to the connectors at both ends of the cable ropes through an adapter to achieve docking between the two cable ropes, which is convenient for the later replacement and maintenance of the cables, can effectively improve the ease of cable operation, improve the efficiency of cable replacement, and reduce the working hours and manpower consumed in cable replacement. Moreover, in the actual use of photovoltaic thermal conductive flame retardant cables for long-distance power transmission, all photovoltaic thermal conductive flame retardant cables of the entire line will not be damaged at the same time. Therefore, when a certain section of the circuit is damaged, the two adjacent cable ropes are connected to the connectors at both ends of the cable ropes through an adapter as described in the present invention to achieve docking between the two cable ropes, which can greatly improve the replacement efficiency and improve the firmness of the connection.

[0017] The conductor cable core of the present invention is the core component of the cable, which is mainly responsible for conducting current. The material of the cable core is pure copper, which has good electrical conductivity and mechanical strength. The conductor cable core is formed by twisting and weaving a plurality of copper wires made of pure copper. This method uses a plurality of fine metal wires for twisting and weaving, which can improve the flexibility and tensile strength of the cable. The conductor cable core is formed by twisting and weaving a plurality of copper wires made of pure copper, which makes the overall flexibility and tensile strength of the cable rope better.

[0018] The top of the adapter of the present invention can be adapted to a conical joint with a threaded hole joint. There are two types of conical joints. One type of conical joint has a plug on its surface, and the other type of conical joint has a jack on its surface. This facilitates the provision of a plug and a jack at both ends of the photovoltaic thermal conductive flame-retardant cable of the entire line, so as to directly use the heat energy transmitted by the photovoltaic thermal conductive flame-retardant cable.

[0019] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and to some extent, will be obvious to those skilled in the art based on the following examination and study, or can be taught from the practice of the present invention. The objectives and other advantages of the present invention can be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The bending structure of the photovoltaic heat-conducting flame-retardant cable of the present invention is shown in FIG. Figure 1 ; Figure 2 The bending structure of the photovoltaic heat-conducting flame-retardant cable of the present invention is shown in FIG. Figure 2 ; Figure 3 It is a structural schematic diagram of two photovoltaic heat-conducting flame-retardant cables connected to each other according to the present invention; Figure 4 It is a schematic diagram of the cross-sectional structure of the photovoltaic heat-conducting flame-retardant cable of the present invention; Figure 5 This is a schematic diagram of the structural connection of the first connecting end in the connecting head of the present invention; Figure 6 It is a schematic diagram of the structure of the adapter, the connector and the cap being separated according to the present invention; Figure 7 It is a schematic diagram of the structure of the adapter and the connector being separated according to the present invention; Figure 8 This is a schematic diagram of the structure of the connection between the connector and the cap of the present invention; Fig. 9 It is a schematic diagram of the partial surface structure of the movable conductive head of the present invention at the top of the threaded connection terminal; Fig.10 It is a schematic structural diagram of a conical joint with a plug according to the present invention; Fig.11It is a schematic structural diagram of a conical joint with a socket according to the present invention; In the figure: outermost sheath 1, shielding layer 2, middle flame retardant layer 3, filler 4, waterproof layer 5, cable core sheath 6, innermost protective layer 7, conductor cable core 8, cable rope 9, hoop 10, hook 11, ear plate 12, connector 13, adapter 14, cap 15, conductive ring 16, threaded connection port 19, first connection end 20, threaded connection terminal 21, movable conductive head 22, cap slot 23, spring slot 24, elastic contact head 25, spring 26, plug 27, jack 28, cone joint 29, waistline 30. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0022] 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 invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0024] In the above description of the present invention, it should be noted that the terms "one side", "the other side", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the invention is usually placed when in use, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0025] In addition, the term "same" does not mean that the parts must be absolutely the same, but slight differences are allowed. The term "vertical" only means that the positional relationship between the parts is more vertical than "parallel", and does not mean that the structure must be completely vertical, but can be slightly tilted. Example

[0026] See also Figure 1-Figure 11 , which is a technical solution provided by the present invention: a photovoltaic thermal conductive flame retardant cable, comprising a cable rope 9, the cable rope 9 is arranged as an outermost sheath 1 of the outermost layer, the outermost sheath 1 is made of a low-smoke halogen-free flame retardant radiation cross-linked polyolefin material added with mica powder nanoparticles, the inner wall of the outermost sheath 1 is provided with a shielding layer 2, the shielding layer 2 is an ultra-thin aluminum-platinum film, the inner wall of the shielding layer 2 is provided with an intermediate flame retardant layer 3, the interior of the intermediate flame retardant layer 3 is wrapped with three conductor cable cores 8, each of the conductor cable cores 8 is formed by twisting and weaving a plurality of pure copper wires, this method uses a plurality of fine metal wires for twisting and weaving, which can improve the flexibility and tensile strength of the cable. The multifilament braiding method is commonly used in power cables and communication cables. The outer wall of each conductor cable core 8 is provided with an innermost protective layer 7, and the innermost protective layer 7 is made of aluminum platinum film. The innermost protective layer 7 is wrapped on the outer wall surface of the conductor cable core 8. The outer wall of the innermost protective layer 7 is provided with a cable core sheath 6, and the outer wall of the cable core sheath 6 is provided with a waterproof layer 5. Three waterproof layers 5 are provided with a filler 4 in the middle of the middle flame retardant layer 3. The filler 4 is talcum powder. Talc is a white powder with good lubricity, anti-adhesion and insulation properties. It is commonly used in the manufacturing process of wires and cables to prevent adhesion between the insulating layer and the sheath, which is convenient for wire stripping. In addition, talcum powder also has good heat resistance and chemical corrosion resistance, and is suitable for cables under various environmental conditions.

[0027] Specifically, in the present embodiment, a connector 13 is provided at each end of the cable rope 9, and the connector 13 is configured as a cylindrical structure. An outer wall of the connector 13 is provided with an ear plate 12, and a total of four ear plates 12 are provided. The four ear plates 12 are arranged at equal intervals on the outer wall of the connector 13 at a circumferential interval, so that the user can pinch or twist the connector 13 with his fingers, thereby improving the user's operating comfort. A hoop 10 is provided at the bottom of the outer wall of each connector 13, and a hook 11 is provided on the outer wall of the hoop 10. Specifically, in this embodiment, it is convenient to hang and organize the electric cable 9. The hook 11 is rotatably connected to the outer wall of the hoop 10, and the hook 11 is set as a circular ring structure to improve the firmness of the hanging.

[0028] Embodiment 2 See also Figure 1-Figure 11, which is another technical solution provided by the present invention. This embodiment has the same points as the above-mentioned embodiment 1, and the similarities are no longer elaborated in this embodiment. The specific difference is: a photovoltaic thermal conductive flame-retardant cable, including a cable rope 9, the cable rope 9 is set as the outermost sheath 1 of the outermost layer, the outermost sheath 1 is made of low-smoke halogen-free flame-retardant radiation cross-linked polyolefin material added with mica powder nanoparticles, the inner wall of the outermost sheath 1 is provided with a shielding layer 2, the shielding layer 2 is an ultra-thin aluminum-platinum film, the inner wall of the shielding layer 2 is provided with an intermediate flame-retardant layer 3, the interior of the intermediate flame-retardant layer 3 is wrapped with three conductor cable cores 8, each of the conductor cable cores 8 is formed by twisting and weaving a plurality of pure copper wires, this method uses a plurality of fine metal wires for twisting and weaving, which can improve the flexibility and tensile strength of the cable. The multifilament braiding method is commonly used in power cables and communication cables. The outer wall of each conductor cable core 8 is provided with an innermost protective layer 7, and the innermost protective layer 7 is made of aluminum platinum film. The innermost protective layer 7 is wrapped on the outer wall surface of the conductor cable core 8. The outer wall of the innermost protective layer 7 is provided with a cable core sheath 6, and the outer wall of the cable core sheath 6 is provided with a waterproof layer 5. Three waterproof layers 5 are provided with a filler 4 in the middle of the middle flame retardant layer 3. The filler 4 is talcum powder. Talc is a white powder with good lubricity, anti-adhesion and insulation properties. It is commonly used in the manufacturing process of wires and cables to prevent adhesion between the insulating layer and the sheath, which is convenient for wire stripping. In addition, talcum powder also has good heat resistance and chemical corrosion resistance, and is suitable for cables under various environmental conditions.

[0029] Specifically, in this embodiment, a threaded connection port 19 with a circular hole structure is provided at the top of the connector 13, which is convenient for connecting the adapter 14. The threaded connection port 19 is threadedly connected to the adapter 14 to improve the firmness and tightness of the connection. Two first connection ends 20 are provided at the bottom end of the threaded connection port 19, one of which is in a circular ring shape, and the other first connection end 20 is in a concave circular groove shape, which is convenient for distinguishing the two poles of the threaded connection port 19.

[0030] Specifically, in the present embodiment, the top end of the connector 13 is used in conjunction with an adapter 14, and a plurality of adapters 14 are provided, each of the adapters 14 includes a threaded connection terminal 21 arranged at both ends of the adapter 14, and a movable conductive head 22 is arranged at the top end of the threaded connection terminal 21 at each end, and a conductive ring 16 is arranged on the periphery of the movable conductive head 22, and a spacing is set between the conductive ring 16 and the movable conductive head 22, and the movable conductive head 22 and the conductive ring 16 are both made of conductive metal material, and the top end of the connector 13 is used in conjunction with the adapter 14 to achieve docking between two adjacent cable ropes 9, which is convenient for effectively improving the ease of cable operation during the later replacement and maintenance of the cable.

[0031] Specifically, the two adjacent cable ropes 9 of the present invention are connected to the connectors 13 at both ends of the cable ropes 9 through an adapter 14 to achieve docking between the two cable ropes 9, which is convenient for the later replacement and maintenance of the cables, can effectively improve the ease of cable operation, improve the efficiency of cable replacement, and reduce the working hours and manpower consumed in cable replacement. Moreover, in the actual use of photovoltaic thermal conductive flame retardant cables for long-distance power transmission, all photovoltaic thermal conductive flame retardant cables of the entire line will not be damaged at the same time. Then, when a certain section of the circuit is damaged, the two adjacent cable ropes 9 are connected to the connectors 13 at both ends of the cable ropes 9 through the adapter 14 described in the present invention to achieve docking between the two cable ropes 9, which can greatly improve the replacement efficiency and improve the firmness of the connection.

[0032] Specifically, in this embodiment, each movable conductive head 22 includes a spring groove 24 opened at the top of the threaded connection terminal 21, and an elastic contact head 25 is slidably connected in the spring groove 24. The elastic contact head 25 extends out of the top surface of the threaded connection terminal 21, and a spring 26 is provided at the top of the elastic contact head 25 slidably connected in the spring groove 24.

[0033] Specifically, in this embodiment, the top surface of the elastic contact head 25 is a semi-spherical shape with an arc structure, and at the same time, the spring 26 in the spring groove 24 is used to improve the tightness of the connection between the elastic contact head 25 and the first connecting end 20 in the circular groove shape in the threaded connection port 19, effectively reducing the probability of tip discharge.

[0034] Embodiment 3 See also Figure 1-Figure 11, which is another technical solution provided by the present invention. This embodiment has the same points as the above-mentioned embodiment 1, and the similarities are no longer elaborated in this embodiment. The specific difference is: a photovoltaic thermal conductive flame-retardant cable, including a cable rope 9, the cable rope 9 is set as the outermost sheath 1 of the outermost layer, the outermost sheath 1 is made of low-smoke halogen-free flame-retardant radiation cross-linked polyolefin material added with mica powder nanoparticles, the inner wall of the outermost sheath 1 is provided with a shielding layer 2, the shielding layer 2 is an ultra-thin aluminum-platinum film, the inner wall of the shielding layer 2 is provided with an intermediate flame-retardant layer 3, the interior of the intermediate flame-retardant layer 3 is wrapped with three conductor cable cores 8, each of the conductor cable cores 8 is formed by twisting and weaving a plurality of pure copper wires, this method uses a plurality of fine metal wires for twisting and weaving, which can improve the flexibility and tensile strength of the cable. The multifilament braiding method is commonly used in power cables and communication cables. The outer wall of each conductor cable core 8 is provided with an innermost protective layer 7, and the innermost protective layer 7 is made of aluminum platinum film. The innermost protective layer 7 is wrapped on the outer wall surface of the conductor cable core 8. The outer wall of the innermost protective layer 7 is provided with a cable core sheath 6, and the outer wall of the cable core sheath 6 is provided with a waterproof layer 5. Three waterproof layers 5 are provided with a filler 4 in the middle of the middle flame retardant layer 3. The filler 4 is talcum powder. Talc is a white powder with good lubricity, anti-adhesion and insulation properties. It is commonly used in the manufacturing process of wires and cables to prevent adhesion between the insulating layer and the sheath, which is convenient for wire stripping. In addition, talcum powder also has good heat resistance and chemical corrosion resistance, and is suitable for cables under various environmental conditions.

[0035] A cap 15 is installed at each end of the adapter 14, and a cap groove 23 is opened on the bottom surface of each cap 15. The inner wall of the cap groove 23 is provided with a threaded surface that spirally cooperates with the outer wall of the threaded connection terminal 21. The top surface of the inner wall of the cap groove 23 is set as an arc surface, so that when the adapter 14 is not in use, the top surface of the threaded connection terminal 21 can be protected by the cap 15 to achieve dustproof, waterproof and corrosion-resistant, and effectively improve the service life of the adapter 14.

[0036] Specifically, in this embodiment, the top end of the adapter 14 can be adapted to a conical connector 29 with a threaded hole connector. There are two types of conical connectors 29, one with a plug 27 on the surface of the conical connector 29 and the other with a socket 28 on the surface of the conical connector 29.

[0037] Specifically, in this embodiment, the present invention can adapt a conical joint 29 with a threaded hole joint at the top of the adapter 14. There are two types of conical joints 29. One type of conical joint 29 has a plug 27 on the surface, and the other type of conical joint 29 has a socket 28 on the surface. It is convenient to provide a plug 27 and a socket 28 at both ends of the photovoltaic thermal conductive flame retardant cable of the entire line, so as to directly use the heat energy transmitted by the photovoltaic thermal conductive flame retardant cable.

[0038] Specifically, the two adjacent cable ropes 9 of the present invention are connected to the connectors 13 at both ends of the cable ropes 9 through an adapter 14 to achieve docking between the two cable ropes 9, which is convenient for the later replacement and maintenance of the cables, can effectively improve the ease of cable operation, improve the efficiency of cable replacement, and reduce the working hours and manpower consumed in cable replacement. Moreover, in the actual use of photovoltaic thermal conductive flame retardant cables for long-distance power transmission, all photovoltaic thermal conductive flame retardant cables of the entire line will not be damaged at the same time. Then, when a certain section of the circuit is damaged, the two adjacent cable ropes 9 are connected to the connectors 13 at both ends of the cable ropes 9 through the adapter 14 described in the present invention to achieve docking between the two cable ropes 9, which can greatly improve the replacement efficiency and improve the firmness of the connection.

[0039] Specifically, the conductor cable core 8 of the present invention is the core component of the cable, which is mainly responsible for conducting current. The material of the cable core is pure copper, which has good electrical conductivity and mechanical strength. The conductor cable core 8 is formed by twisting and weaving a plurality of copper wires made of pure copper. This method uses a plurality of fine metal wires for twisting and weaving, which can improve the flexibility and tensile strength of the cable. The conductor cable core 8 is formed by twisting and weaving a plurality of copper wires made of pure copper, so that the overall flexibility and tensile strength of the cable rope 9 are better.

[0040] The adapter 14 is a round rod structure, and a circular arc waistline 30 is arranged in the middle of the adapter 14. The waistline 30 is a smooth circular arc surface, which is convenient for users to hold and improves the comfort of holding.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. A photovoltaic heat-conducting flame-retardant cable, comprising a cable rope (9), characterized in that: The cable rope (9) is provided as an outermost sheath (1) as the outermost layer, the outermost sheath (1) is made of a low-smoke, halogen-free, flame-retardant, radiation-cross-linked polyolefin material added with mica powder nanoparticles, the inner wall of the outermost sheath (1) is provided with a shielding layer (2), the shielding layer (2) is an ultra-thin aluminum-platinum film, the inner wall of the shielding layer (2) is provided with an intermediate flame-retardant layer (3), the interior of the intermediate flame-retardant layer (3) is wrapped with three conductor cable cores (8), each of the conductor cable cores (8) is composed of a plurality of pure copper wires. After twisting and weaving, the outer wall of each conductor cable core (8) is provided with an innermost protective layer (7), the innermost protective layer (7) is made of aluminum platinum film material, the innermost protective layer (7) is wrapped on the outer wall surface of the conductor cable core (8), the outer wall of the innermost protective layer (7) is provided with a cable core sheath (6) wrapped, the outer wall of the cable core sheath (6) is provided with a waterproof layer (5) wrapped, and three waterproof layers (5) are provided with a filler (4) in the middle of the middle flame retardant layer (3), and the filler (4) is talcum powder.

2. A photovoltaic thermally conductive flame-retardant cable according to claim 1, characterized in that: A connector (13) is provided at each end of the cable rope (9); the connector (13) is configured as a cylindrical structure; an outer wall of the connector (13) is provided with an ear plate (12); a total of four ear plates (12) are provided; the four ear plates (12) are arranged at equal intervals on the outer wall of the connector (13); a hoop (10) is provided at the bottom of the outer wall of each connector (13); and a hook (11) is provided on the outer wall of the hoop (10).

3. A photovoltaic thermally conductive flame-retardant cable according to claim 2, characterized in that: The hook (11) is rotatably connected to the outer wall of the rotating hoop (10), and the hook (11) is configured as a circular ring structure.

4. A photovoltaic thermally conductive flame-retardant cable according to claim 2, characterized in that: The top end of the connector (13) is provided with a threaded connection port (19) having a circular hole structure, and the bottom end of the threaded connection port (19) is provided with two first connection ends (20), one of the first connection ends (20) being in the shape of a circular ring, and the other of the first connection ends (20) being in the shape of a concave circular groove.

5. The photovoltaic thermally conductive flame-retardant cable according to claim 2, characterized in that: The top end of the connector (13) is used in conjunction with an adapter (14), and a plurality of adapters (14) are provided. Each adapter (14) comprises a threaded connection terminal (21) provided at both ends of the adapter (14). A movable conductive head (22) is provided at the top end of the threaded connection terminal (21) at each end. A conductive ring (16) is provided on the periphery of the movable conductive head (22). A spacing is provided between the conductive ring (16) and the movable conductive head (22), and both the movable conductive head (22) and the conductive ring (16) are made of conductive metal.

6. A photovoltaic thermally conductive flame-retardant cable according to claim 5, characterized in that: A cap (15) is installed at each end of the adapter (14), and a cap groove (23) is provided on the bottom surface of each cap (15). The inner wall of the cap groove (23) is provided with a threaded surface that screws with the outer wall of the threaded connection terminal (21), and the top surface of the inner wall of the cap groove (23) is provided as a circular arc surface.

7. The photovoltaic thermally conductive flame-retardant cable according to claim 5, characterized in that: Each of the movable conductive heads (22) comprises a spring slot (24) provided at the top end of the threaded connection terminal (21), an elastic contact head (25) being slidably connected in the spring slot (24), the elastic contact head (25) extending out of the top end surface of the threaded connection terminal (21), and a spring (26) being provided at the top end of the elastic contact head (25) slidably connected in the spring slot (24).

8. The photovoltaic thermally conductive flame-retardant cable according to claim 7, characterized in that: The top end surface of the elastic contact head (25) is in the shape of a semi-spherical arc structure.

9. The photovoltaic thermally conductive flame-retardant cable according to claim 8, characterized in that: The top end of the adapter (14) can be adapted to fit a conical connector (29) with a threaded hole connector. The conical connector (29) is provided with two types, one having a plug (27) on the surface of the conical connector (29), and the other having a socket (28) on the surface of the conical connector (29).

10. The photovoltaic thermally conductive flame-retardant cable according to claim 8, characterized in that: The adapter (14) is a round rod structure, and a circular arc waistline (30) is provided in the middle of the adapter (14), and the waistline (30) is a smooth circular arc surface.

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