Tear-resistant and bending-resistant photovoltaic cable

Abstract

The invention discloses a tear-resistant and bending-resistant photovoltaic cable, and relates to the technical field of photovoltaic cables, the tear-resistant and bending-resistant photovoltaic cable comprises two photovoltaic cable bodies, a bending-resistant assembly is arranged between the outer surfaces of the two photovoltaic cable bodies, the bending-resistant assembly comprises a connecting sleeve, the outer surface of the connecting sleeve is provided with a mounting groove, and the connecting sleeve is provided with a clamping groove. A plurality of anti-bending springs are arranged on the inner wall of the mounting groove; according to the anti-tearing and anti-bending photovoltaic cable, in order to further improve the anti-tearing strength of the joint of the two photovoltaic cable bodies, the plurality of extension springs are connected with the photovoltaic cable bodies and the connecting sleeve, so that when the photovoltaic cable bodies are stretched, the extension springs can extend and release part of energy; therefore, direct pulling force on the connecting sleeve and the two photovoltaic cable bodies is reduced, tearing of the photovoltaic cable bodies caused by stress concentration is avoided, and the problem that in the prior art, the anti-tearing and anti-bending performance of the connecting position of the two photovoltaic cables is low is solved.

Description

Technical Field

[0001] The invention relates to the technical field of photovoltaic cables, and in particular to a tear-resistant and bending-resistant photovoltaic cable. Background Art

[0002] Photovoltaic cables are cables specially used in photovoltaic power generation systems. They are mainly responsible for transmitting the electricity generated by solar panels to the power grid. Photovoltaic cells convert sunlight into direct current through the photoelectric effect. Photons in sunlight hit the battery material, excite electrons and generate current. The generated direct current is transmitted through photovoltaic cables. Photovoltaic cables are designed for this purpose and have good conductivity and environmental protection capabilities. The conductor inside the cable is responsible for carrying current and transferring electrical energy from the battery panel to other components of the system.

[0003] Currently, during the construction of photovoltaic cables, the distance from the photovoltaic module to the inverter is generally quite far, and multiple photovoltaic cables need to be connected together to ensure smooth transmission of electric energy and normal operation of the system. However, in actual applications, photovoltaic cables are affected by environmental factors, and the connections are often subjected to additional tension and bending moments. This uneven load will cause greater stress at the connection, thereby forming a stress concentration area on the contact surface of the photovoltaic cable connection. Any bending and movement will exert additional force on the connection, increasing the risk of cable tearing. Existing cable connectors mostly use hard fixed connectors, which lack flexibility and cannot effectively absorb the stress caused by external tension and bending moment, resulting in stress concentration at the connection, increasing the risk of photovoltaic cable tearing, and further reducing the tear and bending resistance of photovoltaic cables.

[0004] Therefore, we propose a tear-resistant and bending-resistant photovoltaic cable to solve the above-mentioned problems. Summary of the invention

[0005] The object of the present invention is to provide a tear-resistant and bending-resistant photovoltaic cable to solve the problem of low tear-resistant and bending-resistant performance at the connection between two photovoltaic cables mentioned in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a tear-resistant and bending-resistant photovoltaic cable, comprising two photovoltaic cable bodies, an anti-bending component is arranged between the outer surfaces of the two photovoltaic cable bodies, the anti-bending component comprises a connecting sleeve, the outer surface of the connecting sleeve is provided with an installation groove, the inner wall of the installation groove is provided with a plurality of anti-bending springs, the inner wall of the connecting sleeve is provided with a spring pad for shock-absorbing the connection of the photovoltaic cable, a conductor for transmitting current is fixedly installed near the center of the connecting sleeve, the outer surface of the connecting sleeve is provided with a plurality of evenly distributed thread grooves, the inner parts of the plurality of thread grooves are all threadedly connected with extrusion bolts, the outer surface of the anti-bending component is provided with an anti-tear component for preventing the connection of the photovoltaic cable from being pulled and damaged, the anti-tear component comprises two fixing rings, the outer surfaces of the two fixing rings are fixedly connected with a plurality of positioning buckles, the inner parts of the plurality of positioning buckles are all provided with a tension spring for buffering when the photovoltaic cable is stretched, and a connecting ring is arranged on the outer surface of the connecting sleeve near the center of the fixing sleeve; in order to further improve the tear resistance of the connection of the two photovoltaic cable bodies, by connecting the plurality of tension springs to the photovoltaic cable body and the connecting sleeve, When the photovoltaic cable body is stretched, the stretch spring can extend and release part of the energy, thereby reducing the direct pulling force on the connecting sleeve and the two photovoltaic cable bodies, avoiding the tearing of the photovoltaic cable body due to stress concentration, and solving the problem of low tearing and bending resistance at the connection between the two photovoltaic cables in the prior art.

[0007] Preferably, a plurality of mounting columns are fixedly welded to the outer surface of the connecting ring, and a plurality of connecting blocks are fixedly mounted to the outer surface of the connecting ring via positioning bolts.

[0008] Preferably, a plurality of the connecting blocks are slidably connected inside with positioning bolts for limiting the tension springs, and one end of the plurality of the anti-bending springs is fixedly connected to an inner wall of one side of the connecting sleeve.

[0009] Preferably, the other ends of the plurality of anti-bending springs are fixedly connected to the inner wall of the other side of the connecting sleeve, and one ends of the plurality of extrusion bolts are movable through the outside of the spring washer.

[0010] Preferably, the inner walls of the two fixing rings are respectively fixedly connected to the outer surfaces of the two photovoltaic cable bodies, and the outer surfaces of the plurality of positioning bolts are respectively connected to the inner threads of the plurality of mounting posts.

[0011] Preferably, two of the multiple tension springs on the same straight line form a group, and the inner walls of each group of the tension springs are slidably connected to the outer surfaces of multiple mounting columns respectively; since photovoltaic cables are mostly installed outdoors, in order to ensure the stability of the photovoltaic cables and enhance the overall bending resistance of the cables, spring pads and multiple anti-bending springs are provided to provide buffering at the connection parts of the photovoltaic cable bodies, reduce stress concentration caused by bending and movement, thereby helping to reduce damage and breakage caused by mechanical stress at the connection between the two photovoltaic cables, and further improve the bending resistance of the connection between the two photovoltaic cable bodies.

[0012] Preferably, the two photovoltaic cable bodies each include a plurality of cable cores, the plurality of cable cores are divided into two groups, one end of each group of cable cores slides with the inside of the connecting sleeve, and a filling layer is filled between the outer surfaces of each group of cable cores.

[0013] Preferably, an insulating layer is disposed on the outer surfaces of the two filling layers, a first shielding layer is disposed on the outer surfaces of the two insulating layers, and a second shielding layer is disposed on the outer surfaces of the two first shielding layers.

[0014] Preferably, a buffer layer is disposed on the outer surfaces of the two second shielding layers, a metal reinforcement layer is disposed on the outer surfaces of the two buffer layers, and an outer sheath layer is disposed on the outer surfaces of the two metal reinforcement layers.

[0015] Preferably, flexible reinforcement layers are provided on the outer surfaces of the two outer sheath layers, tear-resistant layers are provided on the outer surfaces of the two flexible reinforcement layers, and wear-resistant layers are provided on the outer surfaces of the two tear-resistant layers; in order to further ensure the stability of the photovoltaic cable body, the filling layer can effectively protect the cable core inside the photovoltaic cable, the insulating layer can ensure that the current of the cable core in the photovoltaic cable only flows in a predetermined path, the first shielding layer can make the photovoltaic cable body resist electromagnetic interference, the second shielding layer provides additional electromagnetic shielding for the photovoltaic cable body, the buffer layer can provide better impact resistance and flexibility for the photovoltaic cable body, the metal reinforcement layer can provide additional mechanical strength for the photovoltaic cable body, the outer sheath layer can provide higher heat resistance and voltage resistance for the photovoltaic cable body, the flexible reinforcement layer can provide good strength and flexibility for the photovoltaic cable body, and the tear-resistant layer can effectively prevent the photovoltaic cable body from tearing when pulled.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, in order to further improve the tearing strength of the connection between the two photovoltaic cable bodies, multiple tension springs are connected between the photovoltaic cable body and the connecting sleeve, so that when the photovoltaic cable body is stretched, the tension springs can extend and release part of the energy, thereby reducing the direct pulling force on the connecting sleeve and the two photovoltaic cable bodies, avoiding the tearing of the photovoltaic cable body due to stress concentration, and solving the problem of low tearing and bending resistance at the connection between the two photovoltaic cables in the prior art.

[0017] 2. In the present invention, since photovoltaic cables are mostly installed outdoors, in order to ensure the stability of photovoltaic cables and enhance the overall bending resistance of the cables, spring pads and multiple anti-bending springs are provided to provide buffering at the connection parts of the photovoltaic cable bodies, thereby reducing stress concentration caused by bending and movement, thereby helping to reduce damage and breakage caused by mechanical stress at the connection between the two photovoltaic cables, and further improving the bending resistance of the connection between the two photovoltaic cable bodies.

[0018] 3. In the present invention, in order to further ensure the stability of the photovoltaic cable body, the filling layer can effectively protect the cable core inside the photovoltaic cable, the insulating layer can ensure that the current of the cable core in the photovoltaic cable flows only in a predetermined path, the first shielding layer can make the photovoltaic cable body resist electromagnetic interference, the second shielding layer provides additional electromagnetic shielding for the photovoltaic cable body, the buffer layer can provide the photovoltaic cable body with better impact resistance and flexibility, the metal reinforcement layer can provide the photovoltaic cable body with additional mechanical strength, the outer sheath layer can provide the photovoltaic cable body with higher heat resistance and voltage resistance, the flexible reinforcement layer can provide the photovoltaic cable body with good strength and flexibility, and the tear-resistant layer can effectively prevent the photovoltaic cable body from tearing when pulled. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a front perspective view of a tear-resistant and bending-resistant photovoltaic cable of the present invention; Figure 2 This is a three-dimensional diagram of a positioning buckle portion of a tear-resistant and bending-resistant photovoltaic cable of the present invention; Figure 3 This is a three-dimensional diagram of the structure of a connection sleeve of a tear-resistant and bending-resistant photovoltaic cable according to the present invention; Figure 4 This is a perspective view of the structure of the extruded bolt part of a tear-resistant and bending-resistant photovoltaic cable of the present invention; Figure 5 A partial three-dimensional diagram of a tear-resistant component of a tear-resistant and bending-resistant photovoltaic cable of the present invention; Figure 6 This is a perspective view of the structure of a tensile spring portion of a tear-resistant and bending-resistant photovoltaic cable according to the present invention; Figure 7This is a schematic structural diagram of a photovoltaic cable body of a tear-resistant and bending-resistant photovoltaic cable of the present invention; Figure 8 This is a three-dimensional diagram of the structure of the photovoltaic cable body of the tear-resistant and bending-resistant photovoltaic cable of the present invention.

[0020] In the figure: 1. Photovoltaic cable body; 101. Cable core; 102. Filling layer; 103. Insulating layer; 104. First shielding layer; 105. Second shielding layer; 106. Buffer layer; 107. Metal reinforcement layer; 108. Outer sheath layer; 109. Flexible reinforcement layer; 110. Tear-resistant layer; 111. Wear-resistant layer; 2. Anti-bending component; 201. Connecting sleeve; 202. Mounting groove; 203. Anti-bending spring; 204. Spring washer; 205. Conductor; 206. Threaded groove; 207. Extrusion bolt; 3. Tear-resistant component; 301. Fixing ring; 302. Positioning buckle; 303. Tension spring; 304. Connecting ring; 305. Mounting column; 306. Connecting block; 307. Positioning bolt. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. 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.

[0022] See also Figure 1-8The present invention provides a technical solution: a tear-resistant and bending-resistant photovoltaic cable, comprising two photovoltaic cable bodies 1, an anti-bending component 2 is arranged between the outer surfaces of the two photovoltaic cable bodies 1, the anti-bending component 2 comprises a connecting sleeve 201, an installation groove 202 is provided on the outer surface of the connecting sleeve 201, a plurality of anti-bending springs 203 are arranged on the inner wall of the installation groove 202, an elastic pad 204 for shock absorbing the photovoltaic cable connection is arranged on the inner wall of the connecting sleeve 201, a conductor 205 for transmitting current is fixedly installed near the center of the connecting sleeve 201, a plurality of evenly distributed thread grooves 206 are arranged on the outer surface of the connecting sleeve 201, and the inner parts of the plurality of thread grooves 206 are evenly distributed. An extrusion bolt 207 is threadedly connected, and the outer surface of the anti-bending component 2 is provided with an anti-tear component 3 for preventing the photovoltaic cable connection from being pulled and damaged. The anti-tear component 3 includes two fixing rings 301, and the outer surfaces of the two fixing rings 301 are fixedly connected with multiple positioning buckles 302, and the interiors of the multiple positioning buckles 302 are provided with tension springs 303 for buffering when the photovoltaic cable is stretched. A connecting ring 304 is provided on the outer surface of the connecting sleeve 201 near the center of the fixing sleeve, and the other ends of the multiple anti-bending springs 203 are fixedly connected to the inner wall of the other side of the connecting sleeve 201, and one ends of the multiple extrusion bolts 207 are movable through the outside of the spring pad 204.

[0023] In this embodiment, since photovoltaic cables are mostly set outdoors, in order to ensure the stability of photovoltaic cables and enhance the overall anti-bending performance of the cables, when two photovoltaic cable bodies 1 need to be connected, the outer layer of the connection between the two photovoltaic cable bodies 1 is first removed, leaving only the cable core 101 part, and then the cable cores 101 in the two photovoltaic cable bodies 1 are respectively inserted into the opposite inner parts of the connecting sleeve 201, so that one end of the two groups of cable cores 101 are respectively in contact with the opposite outer surfaces of the conductor 205. The conductor 205 is responsible for the flow of current, ensuring the effective transmission of energy, ensuring the stable connection between the connecting sleeve 201 and the photovoltaic cable, reducing the contact resistance, and thus improving the overall efficiency of the system. In addition, the conductor 205 is made of copper, because it has excellent electrical conductivity and thermal conductivity, low resistance, and can effectively reduce power loss. Then the staff can use external tools to rotate multiple extrusion bolts 207 to the inside of the connecting sleeve 201, squeeze and fix the cable core 101, thereby realizing the connection between the two photovoltaic cable bodies 1. In order to ensure the anti-bending performance of the connection between the two photovoltaic cable bodies 1, through the setting of the spring pad 204, It can provide buffering when the photovoltaic cable body 1 encounters bending. The spring pad 204 is made of silicone and has good elasticity and tensile properties. It can effectively absorb the force applied from the outside and reduce the stress caused by bending of the cable, thereby reducing the risk of breakage and damage of the photovoltaic cable. In addition, when the photovoltaic cable is bent, the spring pad 204 can disperse the pressure applied to the cable to avoid excessive stress concentrated at the connection between the two photovoltaic cables. When the connection between the two photovoltaic cables is bent, multiple anti-bending springs 203 can provide buffering at the connection position to reduce the stress concentration caused by bending and movement, thereby helping to reduce the damage and breakage caused by mechanical stress at the connection between the two photovoltaic cables. In addition, the provision of multiple anti-bending springs 203 can allow the connecting sleeve 201 to have a certain displacement and flexibility, which means that when the connection between the photovoltaic cables is bent, stretched and twisted, the anti-bending spring 203 can adapt to these changes, thereby maintaining the stability of the connection between the two photovoltaic cables. Through the action of the anti-bending component 2, the anti-bending strength of the connection between the two photovoltaic cable bodies 1 is further improved.

[0024] like Figure 1-Figure 4As shown, a tear-resistant and bending-resistant photovoltaic cable comprises two photovoltaic cable bodies 1, an anti-bending component 2 is arranged between the outer surfaces of the two photovoltaic cable bodies 1, the anti-bending component 2 comprises a connecting sleeve 201, the outer surface of the connecting sleeve 201 is provided with a mounting groove 202, the inner wall of the mounting groove 202 is provided with a plurality of anti-bending springs 203, the inner wall of the connecting sleeve 201 is provided with a spring pad 204 for shock absorbing the connection of the photovoltaic cable, a conductor 205 for transmitting current is fixedly installed near the center of the connecting sleeve 201, a plurality of evenly distributed thread grooves 206 are arranged on the outer surface of the connecting sleeve 201, the inner parts of the plurality of thread grooves 206 are all threadedly connected with extrusion bolts 207, the outer surface of the anti-bending component 2 is provided with an anti-tear component 3 for preventing the connection of the photovoltaic cable from being pulled and damaged, the anti-tear component 3 comprises two fixing rings 301, the outer surfaces of the two fixing rings 301 are fixedly connected with a plurality of positioning buckles 302, and a plurality of The interior of the positioning buckle 302 is provided with a tension spring 303 for playing a buffering role when the photovoltaic cable is stretched, the outer surface of the connecting sleeve 201 is provided with a connecting ring 304 near the center of the fixing sleeve, and the outer surface of the connecting ring 304 is fixedly welded with a plurality of mounting posts 305, and the outer surface of the connecting ring 304 is fixedly installed with a plurality of connecting blocks 306 through positioning bolts, and the interiors of the plurality of connecting blocks 306 are slidably connected with positioning bolts 307 for limiting the tension spring 303, one end of the plurality of anti-bending springs 203 is fixedly connected to the inner wall of one side of the connecting sleeve 201, the inner walls of the two fixing rings 301 are respectively fixedly connected to the outer surfaces of the two photovoltaic cable bodies 1, the outer surfaces of the plurality of positioning bolts 307 are respectively connected to the internal threads of the plurality of mounting posts 305, and two of the plurality of tension springs 303 on the same straight line are grouped together, and the inner walls of each group of tension springs 303 are respectively slidably connected to the outer surfaces of the plurality of mounting posts 305.

[0025] In the present embodiment, in order to further improve the tear strength of the connection between the two photovoltaic cable bodies 1, firstly, two fixing rings 301 are fixedly connected to the two photovoltaic cable bodies 1 respectively, and then one end of the plurality of tension springs 303 is respectively sleeved on the outer surface of the corresponding mounting post 305, and then the plurality of connecting blocks 306 are respectively arranged above the plurality of mounting posts 305, and the plurality of connecting blocks 306 are fixedly connected to the connecting ring 304 through the fixing parts, and then the plurality of positioning bolts 307 are respectively inserted into the interior of the mounting post 305 through the plurality of connecting blocks 306, so that the outer surface of the positioning bolts 307 is connected to the internal thread of the mounting post 305, that is, the positioning of the plurality of tension springs 303 is achieved, when the two photovoltaic cable bodies 1 are stretched, the tension spring 303 absorbs the stress caused by the stretching at the connection between the two photovoltaic cable bodies 1, and when the photovoltaic cable body 1 is stretched, the tension spring 303 can extend and release part of the energy, thereby reducing the stress on the connection. The direct pulling force between the connecting sleeve 201 and the two photovoltaic cable bodies 1 can avoid the tearing of the photovoltaic cable body 1 due to stress concentration. In addition, when the photovoltaic cable body 1 is stretched, the stretching spring 303 can ensure that the pressure of the connecting sleeve 201 is maintained within an appropriate range to prevent poor contact due to movement or stretching of the photovoltaic cable body 1. This helps to maintain a good electrical connection of the photovoltaic cable body 1, reduce the risk of failure at the connection of the photovoltaic cable body 1, and effectively prevent the connection between the two photovoltaic cable bodies 1 from breaking, thereby further enhancing the tear resistance of the connection between the two photovoltaic cable bodies 1. By using a connector with elastic properties at the connection between the two photovoltaic cable bodies 1, the connection between the two photovoltaic cable bodies 1 is made flexible, reducing the stress caused by external tension and bending moment, thereby reducing the damage of the connection of the photovoltaic cable body 1 due to external stress, thereby solving the problem of low tear resistance and bending resistance at the photovoltaic cable connection in the prior art.

[0026] like Figure 1 , Figure 3 and Figure 7-Figure 8As shown, the two photovoltaic cable bodies 1 each include a plurality of cable cores 101, and the plurality of cable cores 101 are divided into two groups, one end of each group of cable cores 101 slides with the inside of the connecting sleeve 201, and a filling layer 102 is filled between the outer surfaces of each group of cable cores 101, an insulating layer 103 is arranged on the outer surfaces of the two filling layers 102, a first shielding layer 104 is arranged on the outer surfaces of the two insulating layers 103, a second shielding layer 105 is arranged on the outer surfaces of the two first shielding layers 104, a buffer layer 106 is arranged on the outer surfaces of the two second shielding layers 105, a metal reinforcement layer 107 is arranged on the outer surfaces of the two buffer layers 106, an outer sheath layer 108 is arranged on the outer surfaces of the two metal reinforcement layers 107, a flexible reinforcement layer 109 is arranged on the outer surfaces of the two outer sheath layers 108, a tear-resistant layer 110 is arranged on the outer surfaces of the two flexible reinforcement layers 109, and a wear-resistant layer 111 is arranged on the outer surfaces of the two tear-resistant layers 110.

[0027] In this embodiment, in order to further ensure the stability of the photovoltaic cable body 1, a filling layer 102 is added to the outer surface of the cable core 101, which can effectively protect the cable core 101 inside the photovoltaic cable from external physical impact, mechanical damage and environmental factors. The cable core 101 is made of polyethylene material with good insulation and wear resistance. In order to prevent current leakage in the photovoltaic cable, the insulating layer 103 is set to ensure that the current of the cable core 101 in the photovoltaic cable only flows in a predetermined path to prevent safety hazards such as short circuits and electric shocks. In addition, the insulating layer 103 provides physical protection for the cable core 101 in the photovoltaic cable body 1 to prevent it from being mechanically damaged, damp, chemically corroded and environmentally. The influence of pollution, wherein the insulating layer 103 is made of polyvinyl chloride, which is a relatively economical and widely used insulating material, and can provide good insulation performance and mechanical strength. Through the setting of the first shielding layer 104, the photovoltaic cable body 1 can resist electromagnetic interference, reduce the interference of external signals on the internal signal transmission of the photovoltaic cable body 1, and ensure the stability and reliability of the signal. Among them, the first shielding layer 104 is made of copper foil material, which has good conductivity, can effectively resist electromagnetic interference and provide grounding protection for the photovoltaic cable body 1. The function of the second shielding layer 105 is to provide additional electromagnetic shielding for the photovoltaic cable body 1, and enhance the resistance to external electromagnetic interference. Especially in an environment sensitive to interference, the second shielding The second shielding layer 105 can significantly improve the overall shielding effect of the photovoltaic cable body 1, wherein the second shielding layer 105 is made of conductive plastic material, and due to its additional shielding effect, it can better improve the anti-interference ability and physical protection of the photovoltaic cable body 1, and the buffer layer 106 is made of rubber material, which can provide the photovoltaic cable body 1 with better impact resistance and flexibility, and the buffer layer 106 can effectively absorb and reduce the impact of external mechanical shock and vibration on the photovoltaic cable body 1, and protect the conductor 205 and the insulating material inside the photovoltaic cable body 1 from damage, and the metal reinforcement layer 107 is made of galvanized steel wire, which can provide additional mechanical strength for the photovoltaic cable body 1, and prevent the photovoltaic cable body 1 from being hit and pressed during installation and operation. The outer sheath layer 108 is made of cross-linked polyethylene, which can provide the photovoltaic cable body 1 with higher heat resistance and voltage resistance. The outer sheath layer 108 provides an additional layer of protection for the photovoltaic cable body 1 to prevent external physical damage, such as scratches, impacts and compression, to ensure that the components inside the photovoltaic cable are not damaged. The flexible reinforcement layer 109 is made of polyester fiber, which can provide good strength and flexibility for the photovoltaic cable body 1. At the same time, it is light in weight and easy to handle. Through the setting of the flexible reinforcement layer 109, the photovoltaic cable body 1 is easier to bend and operate, and can adapt to different installation environments and paths, especially in applications with limited space and frequent movement. The tear-resistant layer 110 is made of nylon, which has greater strength and wear resistance.The tear-resistant layer 110 can effectively prevent the photovoltaic cable body 1 from tearing when being pulled, pressed and impacted, ensuring the integrity of the photovoltaic cable body 1. The wear-resistant layer 111 is made of polyester material. Polyester has excellent wear resistance, flexibility and anti-aging properties, effectively preventing external physical factors such as friction and wear from damaging the internal components of the photovoltaic cable body 1, ensuring the stability and safety of the performance of the photovoltaic cable body 1. Through multiple protections of the photovoltaic cable body 1, the strength of the photovoltaic cable is further improved.

[0028] The use method and working principle of this device: In order to ensure the stability of the photovoltaic cable and enhance the overall anti-bending performance of the cable, when two photovoltaic cable bodies 1 need to be connected, first remove the outer layer of the connection between the two photovoltaic cable bodies 1, leaving only the cable core 101 part, and then insert the cable cores 101 in the two photovoltaic cable bodies 1 into the opposite inner parts of the connecting sleeve 201, so that one end of the two groups of cable cores 101 are respectively in contact with the opposite outer surfaces of the conductor 205. The conductor 205 is responsible for the flow of current, ensuring the effective transfer of energy, ensuring the stable connection between the connecting sleeve 201 and the photovoltaic cable, reducing the contact resistance, and thus improving the overall efficiency of the system. Then the staff can use external tools to respectively The plurality of extrusion bolts 207 are rotated into the interior of the connecting sleeve 201 to squeeze and fix the cable core 101, thereby realizing the connection between the two photovoltaic cable bodies 1. In order to ensure the anti-bending performance of the connection between the two photovoltaic cable bodies 1, the spring pad 204 is set to provide a buffer when the photovoltaic cable body 1 encounters bending, thereby reducing the risk of breakage and damage of the photovoltaic cable. In addition, when the photovoltaic cable is bent, the spring pad 204 can disperse the pressure applied to the cable to avoid excessive stress concentrated at the connection between the two photovoltaic cables. When the connection between the two photovoltaic cables is bent, the plurality of anti-bending springs 203 can provide a buffer at the connection position to reduce the stress concentration caused by bending and movement, thereby having In order to reduce the damage and breakage caused by mechanical stress at the connection between the two photovoltaic cables, the setting of multiple anti-bending springs 203 can allow the connecting sleeve 201 to have a certain displacement and flexibility, which means that when the connection between the photovoltaic cables is bent, stretched and twisted, the anti-bending springs 203 can adapt to these changes, thereby maintaining the stability of the connection between the two photovoltaic cables. Then, the two fixing rings 301 are fixedly connected to the two photovoltaic cable bodies 1 respectively, and then one end of the multiple stretching springs 303 is respectively sleeved on the outer surface of the corresponding mounting post 305, and then the multiple connecting blocks 306 are respectively arranged above the multiple mounting posts 305, and the multiple connecting blocks 306 are connected to the connecting pieces through the fixing parts. The connecting rings 304 are fixedly connected, and then a plurality of positioning bolts 307 are respectively inserted into the interior of the mounting column 305 through a plurality of connecting blocks 306, so that the outer surface of the positioning bolts 307 is connected to the internal thread of the mounting column 305, that is, the positioning of the plurality of tension springs 303 is realized. When the two photovoltaic cable bodies 1 are stretched, the tension springs 303 absorb the stress caused by the stretching at the connection between the two photovoltaic cable bodies 1. When the photovoltaic cable body 1 is stretched, the tension springs 303 can extend and release part of the energy, thereby reducing the direct pulling force on the connecting sleeve 201 and the two photovoltaic cable bodies 1, and avoiding the tearing of the photovoltaic cable body 1 due to stress concentration. In addition, when the photovoltaic cable body 1 is stretched,The stretch spring 303 can ensure that the pressure of the connecting sleeve 201 is maintained within an appropriate range, preventing poor contact due to movement or stretching of the photovoltaic cable body 1, thereby further strengthening the tear resistance of the connection between the two photovoltaic cable bodies 1. By using a connector with elastic properties at the connection between the two photovoltaic cable bodies 1, the connection between the two photovoltaic cable bodies 1 is flexible, reducing the stress caused by external tension and bending moment. In order to further ensure the stability of the photovoltaic cable body 1, a filling layer 102 is added to the outer surface of the cable core 101, which can effectively protect the cable core 101 inside the photovoltaic cable and prevent it from being subjected to external physical impact, mechanical The setting of the insulating layer 103 can ensure that the current of the cable core 101 in the photovoltaic cable only flows in a predetermined path to prevent the safety hazards of short circuit and electric shock. The insulating layer 103 provides physical protection for the cable core 101 in the photovoltaic cable body 1 to prevent it from being affected by mechanical damage, moisture, chemical erosion and environmental pollution. The setting of the first shielding layer 104 can make the photovoltaic cable body 1 resist electromagnetic interference, reduce the interference of external signals on the internal signal transmission of the photovoltaic cable body 1, and ensure the stability and reliability of the signal. The function of the second shielding layer 105 is to provide additional electromagnetic shielding for the photovoltaic cable body 1 to enhance the resistance to external electromagnetic The second shielding layer 105 can significantly improve the overall shielding effect of the photovoltaic cable body 1, especially in an environment sensitive to interference. The buffer layer 106 can effectively absorb and reduce the impact of external mechanical shock and vibration on the photovoltaic cable body 1, and protect the conductor 205 and the insulating material inside the photovoltaic cable body 1 from damage. The metal reinforcement layer 107 can provide additional mechanical strength for the photovoltaic cable body 1. The outer sheath layer 108 provides an additional layer of protection for the photovoltaic cable body 1 to prevent external physical damage, such as scratches, impacts and compression, to ensure that the components inside the photovoltaic cable are not damaged. The flexible reinforcement layer 109 can provide a good Good strength and flexibility, light weight, easy to handle, the setting of the flexible reinforcement layer 109 makes the photovoltaic cable body 1 easier to bend and operate, adapting to different installation environments and paths, especially in applications with limited space and frequent movement. The tear-resistant layer 110 can effectively prevent the photovoltaic cable body 1 from tearing when pulled, pressed and impacted, ensuring the integrity of the photovoltaic cable body 1. The wear-resistant layer 111 can effectively prevent external physical factors such as friction and wear from damaging the internal components of the photovoltaic cable body 1, ensuring the stability and safety of the performance of the photovoltaic cable body 1. Through multiple protections of the photovoltaic cable body 1, the strength of the photovoltaic cable is further improved.

[0029] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A tear-resistant and bending-resistant photovoltaic cable, comprising two photovoltaic cable bodies (1), characterized in that: An anti-bending component (2) is arranged between the outer surfaces of the two photovoltaic cable bodies (1), the anti-bending component (2) comprising a connecting sleeve (201), the outer surface of the connecting sleeve (201) is provided with a mounting groove (202), the inner wall of the mounting groove (202) is provided with a plurality of anti-bending springs (203), the inner wall of the connecting sleeve (201) is provided with a spring pad (204) for shock absorbing the photovoltaic cable connection, a conductor (205) for transmitting current is fixedly installed near the center of the connecting sleeve (201), the outer surface of the connecting sleeve (201) is provided with a plurality of evenly distributed thread grooves (206), and the interiors of the plurality of thread grooves (206) are all threadedly connected with extrusion bolts (207); The outer surface of the anti-bending component (2) is provided with an anti-tearing component (3) for preventing the photovoltaic cable connection from being pulled and damaged. The anti-tearing component (3) comprises two fixing rings (301). The outer surfaces of the two fixing rings (301) are fixedly connected with a plurality of positioning buckles (302). The interiors of the plurality of positioning buckles (302) are provided with tension springs (303) for playing a buffering role when the photovoltaic cable is stretched. The outer surface of the connecting sleeve (201) is provided with a connecting ring (304) near the center of the fixing sleeve.

2. The tear-resistant and bending-resistant photovoltaic cable according to claim 1, characterized in that: A plurality of mounting columns (305) are fixedly welded to the outer surface of the connecting ring (304), and a plurality of connecting blocks (306) are fixedly mounted to the outer surface of the connecting ring (304) via positioning bolts.

3. The tear-resistant and bending-resistant photovoltaic cable according to claim 2, characterized in that: The interiors of the plurality of connection blocks (306) are all slidably connected with positioning bolts (307) for limiting the tension spring (303), and one end of the plurality of anti-bending springs (203) is fixedly connected to an inner wall of one side of the connection sleeve (201).

4. The tear-resistant and bending-resistant photovoltaic cable according to claim 3, characterized in that: The other ends of the plurality of anti-bending springs (203) are fixedly connected to the inner wall of the other side of the connecting sleeve (201), and one ends of the plurality of extrusion bolts (207) are movably penetrated to the outside of the spring washer (204).

5. The tear-resistant and bending-resistant photovoltaic cable according to claim 4, characterized in that: The inner walls of the two fixing rings (301) are respectively fixedly connected to the outer surfaces of the two photovoltaic cable bodies (1), and the outer surfaces of the plurality of positioning bolts (307) are respectively connected to the inner threads of the plurality of mounting columns (305).

6. The tear-resistant and bending-resistant photovoltaic cable according to claim 5, characterized in that: Two of the plurality of tension springs (303) on the same straight line form a group, and the inner wall of each group of tension springs (303) is slidably connected to the outer surfaces of the plurality of mounting posts (305).

7. The tear-resistant and bending-resistant photovoltaic cable according to claim 6, characterized in that: The two photovoltaic cable bodies (1) each include a plurality of cable cores (101), the plurality of cable cores (101) are divided into two groups, one end of each group of cable cores (101) slides with the inside of a connecting sleeve (201), and a filling layer (102) is filled between the outer surfaces of each group of cable cores (101).

8. The tear-resistant and bending-resistant photovoltaic cable according to claim 7, characterized in that: An insulating layer (103) is disposed on the outer surfaces of the two filling layers (102), a first shielding layer (104) is disposed on the outer surfaces of the two insulating layers (103), and a second shielding layer 105 is disposed on the outer surfaces of the two first shielding layers (104).

9. The tear-resistant and bending-resistant photovoltaic cable according to claim 8, characterized in that: A buffer layer (106) is disposed on the outer surfaces of the two second shielding layers (105), a metal reinforcement layer (107) is disposed on the outer surfaces of the two buffer layers (106), and an outer sheath layer (108) is disposed on the outer surfaces of the two metal reinforcement layers (107).

10. The tear-resistant and bending-resistant photovoltaic cable according to claim 9, characterized in that: The outer surfaces of the two outer sheath layers (108) are both provided with flexible reinforcement layers (109), the outer surfaces of the two flexible reinforcement layers (109) are both provided with tear-resistant layers (110), and the outer surfaces of the two tear-resistant layers (110) are both provided with wear-resistant layers (111).

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