Cold-resistant and easy-to-connect photovoltaic wire

Abstract

The utility model discloses a cold-resistant easy-to-connect photovoltaic wire, which comprises two photovoltaic wire inner cores, the ends of the two photovoltaic wire inner cores are connected together, the photovoltaic wire inner cores are wrapped by an inner protective layer, the inner protective layer is wrapped by an outer protective layer, and the outer protective layer is wrapped by an outer protective layer. According to the utility model, through the arrangement of the outer protection shell, the middle limiting block, the extrusion block, the buffer groove, the limiting end groove, the connecting strip and the protection strip, the semicircular tubular outer protection shell is directly clamped at the connection position of the photovoltaic line, so that the connection position of the photovoltaic line is prevented from being damaged, and the service life of the photovoltaic line is prolonged. Through cooperative use of the connecting strip and the protective strip, a gap between the two outer protective shells can be covered, the protective and sealing effects are better, the two outer protective shells make direct contact with each other and are more convenient to connect, the two outer protective shells are subsequently reinforced by tightening the threaded long rod, and operation is convenient and fast.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic wire technology, specifically a cold-resistant and easy-to-connect photovoltaic wire. Background Technology

[0002] Photovoltaic cables are special cables used in solar photovoltaic module systems. They are resistant to weathering, high temperatures, abrasion, ultraviolet radiation, ozone, hydrolysis, acids, and salts, and have an extremely long service life. Photovoltaic cables typically use high-performance insulation and sheathing materials that are resistant to high-energy electron accelerator radiation AC to ensure reliable insulation and mechanical properties. The connection between photovoltaic cables is relatively complex. To ensure the safety of the connection points, a connection protection structure is usually added to protect the connection points.

[0003] However, the current protective structure at the connection point of photovoltaic lines is quite troublesome to connect, and the sealing effect at the connection point is poor. Especially in cold environments, cold air can easily enter through the gaps, affecting the performance. Utility Model Content

[0004] This invention provides a cold-resistant and easy-to-connect photovoltaic line, which can effectively solve the problems mentioned in the background art, such as the cumbersome connection structure of the current photovoltaic line connection position, poor sealing effect at the connection point, and the easy entry of cold air into the gaps in cold environments, which affects the performance.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a cold-resistant and easily connected photovoltaic wire, comprising a photovoltaic wire core, wherein two photovoltaic wire cores are provided, the ends of the two photovoltaic wire cores are connected together, the photovoltaic wire core is wrapped with an inner protective layer, the inner protective layer is wrapped with an outer protective layer, the end of the outer protective layer is cut to form an outer layer slit, the outer protective layer is bent outward to form a folded edge strip, two outer protective shells are snapped at the connection position of the photovoltaic wire core, a central limiting block is installed in the middle of the inner side of the outer protective shell, and compression blocks are installed at both ends of the inner side of the outer protective shell. Buffer grooves are opened on the inner sides of the central limiting block and the compression blocks, and limiting end grooves are opened at both ends of the outer protective shell. Connecting strips are installed at the top and bottom ends of the outer protective shell, and pressure grooves are opened on the inner side of the connecting strips. A protective strip is installed on the outer side of one connecting strip of the outer protective shell.

[0006] A sealing strip is snapped onto the outer side of the outer protective layer at the corresponding limiting end groove position. An extrusion arc strip is adhered to one side of the sealing strip. An outer arc strip is installed on the outer side of the extrusion arc strip. Tightening blocks are installed at the top and bottom of the outer arc strip. An installation hole is opened in the middle of the tightening block. A tightening threaded rod is snapped into the installation hole. A connecting block is installed at one end of the tightening threaded rod, and a fixing nut is threadedly connected to the other end of the tightening threaded rod.

[0007] Preferably, the outer protective layer has two symmetrical outer layer cuts at its ends, and the ends of the outer protective layer are bent outwards corresponding to the outer layer cuts to form two symmetrical folded edge strips.

[0008] Preferably, the outer protective shell is a semi-circular tubular structure, and the sealing strip, the extrusion arc strip, and the outer arc strip are all semi-circular annular structures.

[0009] Preferably, the outer diameter of the extruded arc strip is equal to the outer diameter of the outer protective shell, and the folded edge strip is engaged with the limiting end groove of the outer protective shell.

[0010] Preferably, the extrusion block is attached to the outer side of the inner protective layer, and the protective strip on the outer side of one of the connecting strips is in contact with and attached to the outer side of the connecting strip at an adjacent position.

[0011] Preferably, the tightening threaded rod is engaged in the groove position of the connecting strip;

[0012] Two threaded rods located at the top of the outer arc strip are connected at one end by a connecting block, and two threaded rods located at the bottom of the outer arc strip are connected at one end by a connecting block.

[0013] Compared with the prior art, the advantages of this utility model are: the structure of this utility model is scientific and reasonable, and it is safe and convenient to use.

[0014] 1. By setting an outer protective shell, a central limiting block, an extrusion block, a buffer groove, a limiting end groove, a connecting strip, and a protective strip, the semi-circular tubular outer protective shell can be directly snapped into the connection position of the photovoltaic line. Through the cooperation between the connecting strip and the protective strip, the gap between the two outer protective shells can be covered, resulting in better protection and sealing. The two outer protective shells are in direct contact, making the connection more convenient. Subsequent reinforcement can be achieved by tightening the threaded long rod, making the operation convenient.

[0015] 2. By setting folded edge strips, sealing strips, extrusion arc strips, outer arc strips, tightening blocks, mounting holes, tightening threaded rods, connecting blocks, and fixing nuts, the folded edge strips are limited by snapping the sealing strips and extrusion arc strips at both ends of the outer protective shell, making the connection between the outer protective shell and the outer protective layer tighter, providing good protection, resisting lower temperatures, and having strong low-temperature adaptability. At the same time, the tightening threaded rods can limit the outer protective shell, resulting in good overall installation effect. Attached Figure Description

[0016] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0017] In the attached diagram:

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

[0019] Figure 2 This is a schematic diagram of the structure of this utility model;

[0020] Figure 3 This is a front view of the inner protective layer of this utility model;

[0021] Figure 4 This is a schematic diagram showing the installation position of the sealing strip of this utility model;

[0022] Figure 5 This is an exploded structural diagram of the present invention;

[0023] The diagram is labeled as follows: 1. Photovoltaic wire core; 2. Inner protective layer; 3. Outer protective layer; 4. Outer cut; 5. Folded edge strip; 6. Outer protective shell; 7. Central limiting block; 8. Extrusion block; 9. Buffer groove; 10. Limiting end groove; 11. Connecting strip; 12. Pressing groove; 13. Protective strip; 14. Sealing soft strip; 15. Extrusion arc strip; 16. Outer arc strip; 17. Tightening block; 18. Mounting hole; 19. Tightening threaded long rod; 20. Connecting block; 21. Fixing nut. Detailed Implementation

[0024] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0025] Example: Figure 1-5As shown, this utility model provides a technical solution: a cold-resistant and easily connected photovoltaic wire, including a photovoltaic wire core 1, of which two cores 1 are provided, with their ends connected together. An inner protective layer 2 covers the outer surface of the inner core 1, and an outer protective layer 3 covers the outer surface of the inner protective layer 2. The outer protective layer 3 has an outer cutout 4 at its end, and is bent outwards to form a folded edge strip 5. The outer protective layer 3 has two symmetrical outer cutouts 4 at its end, and is bent outwards at the corresponding positions of the outer cutouts 4 to form two symmetrical folded edge strips 5, facilitating the limiting of the outer protective layer 3 at the connection point of the photovoltaic wire cores 1. Two outer protective shells 6 are snapped into the connection position of the core 1. A central limiting block 7 is installed in the middle of the inner side of the outer protective shell 6. An extrusion block 8 is installed at both ends of the inner side of the outer protective shell 6. A buffer groove 9 is opened on the inner side of both the central limiting block 7 and the extrusion block 8. A limiting end groove 10 is opened at both ends of the outer protective shell 6. A connecting strip 11 is installed at the top and bottom ends of the outer protective shell 6. A pressure groove 12 is opened on the inner side of the connecting strip 11. A protective strip 13 is installed on the outer side of one connecting strip 11 of the outer protective shell 6. The extrusion block 8 is attached to the outer side of the inner protective layer 2. The protective strip 13 on the outer side of one connecting strip 11 is in contact with the outer side of the connecting strip 11 at the adjacent position, so that the two outer protective shells 6 are better sealed.

[0026] A sealing strip 14 is snapped onto the outer side of the outer protective layer 3 at the position corresponding to the limiting end groove 10. An extrusion arc strip 15 is adhered to one side of the sealing strip 14. The outer diameter of the extrusion arc strip 15 is equal to the outer diameter of the outer protective shell 6. The folded edge strip 5 is snapped onto the limiting end groove 10 of the outer protective shell 6 to facilitate the extrusion and fixation of the folded edge strip 5. An outer arc strip 16 is installed on the outer side of the extrusion arc strip 15. The outer protective shell 6 has a semi-circular tubular structure. The sealing strip 14, the extrusion arc strip 15, and the outer arc strip 16 are all semi-circular ring structures, which provide better protection for the connection of the photovoltaic core 1. The top and bottom of the outer arc strip 16 are also equipped with There is a tightening block 17, and a mounting hole 18 is opened in the middle of the tightening block 17. A tightening threaded rod 19 is snapped into the mounting hole 18. The tightening threaded rod 19 is snapped into the pressure groove 12 of the connecting strip 11. One end of the two tightening threaded rods 19 located at the top of the outer arc strip 16 is connected by a connecting block 20. One end of the two tightening threaded rods 19 located at the bottom of the outer arc strip 16 is connected by a connecting block 20, which makes it easier to fix the two outer protective shells 6. A connecting block 20 is installed at one end of the tightening threaded rod 19, and a fixing nut 21 is threadedly connected to the other end of the tightening threaded rod 19.

[0027] The working principle and usage process of this utility model are as follows: When connecting photovoltaic wires, the outer protective layer 3 at the end of the photovoltaic wire is peeled off in sequence, symmetrical outer layer cuts 4 are made, and then the outer protective layer 3 is bent outward from the outer cuts 4 to form a folded edge strip 5. At the same time, the inner protective layer 2 and the inner core 1 of the photovoltaic wire are cut and trimmed.

[0028] Then connect the inner cores 1 of the two photovoltaic wires that need to be connected. At this time, take two outer protective shells 6 and snap them into the connection position, so that the middle limiting block 7 is located at the connection position of the inner core 1 of the photovoltaic wire, the squeezing block 8 is located outside the inner protective layer 2, the folded edge strip 5 is snapped into the limiting end groove 10 at both ends of the outer protective shell 6, and the protective strip 13 is snapped into the connection strip 11 to cover the gap between the two outer protective shells 6 and provide preliminary protection for the connection position of the photovoltaic wires.

[0029] Next, the protective strip 13 and the sealing strip 14 are snapped into the limiting end grooves 10 at both ends of the outer protective shell 6, and the folded edge strip 5 is squeezed and limited so that the mounting holes 18 of the tightening block 17 are placed at both ends of the pressure groove 12. Finally, the tightening threaded rod 19 is inserted into the mounting hole 18 to string the tightening blocks 17 at both ends of the outer protective shell 6 together. At the same time, the tightening threaded rod 19 is snapped into the inside of the pressure groove 12 of the connecting strip 11 to limit and squeeze the connecting strip 11, so that the two outer protective shells 6 are stably snapped together.

[0030] Then, tighten the fixing nut 21 onto one end of the tightening threaded rod 19, and squeeze the extrusion arc strips 15 at both ends of the outer protective shell 6 toward the middle position, thereby squeezing the folded edge strip 5, so that the ends of the outer protective shell 6 can also remain stable, making the connection of the outer protective shell 6 at the photovoltaic line connection more convenient. Moreover, the overall sealing effect is better due to the compression of the two ends by the protective strip 13, the sealing soft strip 14 and the extrusion arc strip 15, which can better resist cold and has a strong adaptability to low temperature environments.

[0031] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A cold-resistant and easily connected photovoltaic wire, comprising a photovoltaic wire core (1), characterized in that: The photovoltaic wire core (1) has two wires, and the ends of the two photovoltaic wire cores (1) are connected together. The photovoltaic wire core (1) is wrapped with an inner protective layer (2), and the inner protective layer (2) is wrapped with an outer protective layer (3). The end of the outer protective layer (3) is cut to form an outer layer cut (4). The outer protective layer (3) is bent outward to form a folded edge strip (5). Two outer protective shells (6) are snapped into the connection position of the photovoltaic wire core (1). The inner side of the outer protective shell (6) is in the middle The outer protective shell (6) is equipped with a central limiting block (7), and the inner ends of the outer protective shell (6) are equipped with extrusion blocks (8). The inner sides of the central limiting block (7) and the extrusion blocks (8) are provided with buffer grooves (9). The two ends of the outer protective shell (6) are provided with limiting end grooves (10). The top and bottom ends of the outer protective shell (6) are equipped with connecting strips (11). The inner side of the connecting strips (11) is provided with pressure grooves (12). The outer side of one connecting strip (11) of the outer protective shell (6) is equipped with a protective strip (13). A sealing strip (14) is snapped into the outer side of the outer protective layer (3) at the position corresponding to the limiting end groove (10). An extrusion arc strip (15) is glued to one side of the sealing strip (14). An outer arc strip (16) is installed on the outer side of the extrusion arc strip (15). Tightening blocks (17) are installed at the top and bottom of the outer arc strip (16). An installation hole (18) is opened in the middle of the tightening block (17). A tightening threaded rod (19) is snapped into the installation hole (18). A connecting block (20) is installed at one end of the tightening threaded rod (19). A fixing nut (21) is threadedly connected to the other end of the tightening threaded rod (19).

2. The cold-resistant and easily connected photovoltaic wire according to claim 1, characterized in that: The outer protective layer (3) has two symmetrical outer layer cuts (4) cut at its end. The end of the outer protective layer (3) is bent outwards at the position corresponding to the outer layer cuts (4) to form two symmetrical folded edge strips (5).

3. The cold-resistant and easily connected photovoltaic wire according to claim 1, characterized in that: The outer protective shell (6) is a semi-circular tubular structure, and the sealing soft strip (14), the extrusion arc strip (15) and the outer arc strip (16) are all semi-circular ring structures.

4. The cold-resistant and easily connected photovoltaic wire according to claim 1, characterized in that: The outer diameter of the extrusion arc strip (15) is equal to the outer diameter of the outer protective shell (6), and the folded edge strip (5) is engaged with the limiting end groove (10) of the outer protective shell (6).

5. The cold-resistant and easily connected photovoltaic wire according to claim 1, characterized in that: The extrusion block (8) is attached to the outer side of the inner protective layer (2), and the protective strip (13) on the outer side of one of the connecting strips (11) is in contact with the outer side of the connecting strip (11) at the adjacent position.

6. The cold-resistant and easily connected photovoltaic wire according to claim 1, characterized in that: The tightening threaded rod (19) is engaged in the groove (12) of the connecting strip (11); Two threaded rods (19) located at the top of the outer arc bar (16) are connected at one end by a connecting block (20), and two threaded rods (19) located at the bottom of the outer arc bar (16) are connected at one end by a connecting block (20).

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