Photovoltaic cable connector assembly erected at low altitude and mounting structure thereof

Abstract

The invention relates to the technical field of photovoltaic cable connectors, and discloses a low-altitude erected photovoltaic cable connector assembly and a mounting structure thereof, the low-altitude erected photovoltaic cable connector assembly comprises a connecting shell, one end of the connecting shell is provided with a butt joint, and the other end of the connecting shell is provided with a connecting column; the device further comprises a sliding groove formed in the connecting column, a positioning frame is arranged in the sliding groove, two positioning plates used for positioning a circuit are movably arranged in the positioning frame, and ball head rods are arranged on the outer walls of the two positioning plates. A first track groove and a second track groove which limit sliding of the two ball head rods respectively are formed in the connecting column, and a power connection piece is arranged in the sliding groove. By means of the arrangement of the first track groove and the second track groove, clamping and conveying of multiple sets of cable core wires are achieved, the convenience of cable wiring is improved, and the situation that when multiple sets of cable core wires are pressed and locked, the cable core wires break away from the wiring position, and consequently contact is poor can be effectively avoided.

Description

Technical Field

[0001] This invention relates to the field of photovoltaic cable connector technology, specifically to a photovoltaic cable connector assembly and its installation structure for low-altitude installation. Background Technology

[0002] Photovoltaic panels are a technology that converts solar energy into electrical energy. During the installation of photovoltaic equipment, cable connectors are used to enable quick connection between photovoltaic equipment and cables. Photovoltaic cable connectors are key components in photovoltaic systems for the safe and efficient connection of photovoltaic modules, inverters, combiner boxes and other equipment.

[0003] Currently, when connecting photovoltaic cables and cable connectors, the cable sheath is first stripped, and the cable core is crimped to the contact post on the cable connector. However, during the connection process, the cable core is usually multi-stranded. Therefore, during the crimping process between the core and the contact post, the wire is often fed separately and the contact post is tightened to lock it. This operation is cumbersome and time-consuming, causing some inconvenience to the connection of photovoltaic cables and cable connectors.

[0004] To address the existing problems, there is an urgent need to innovate based on the existing photovoltaic cable connectors. Summary of the Invention

[0005] The purpose of this invention is to provide a photovoltaic cable connector assembly and its installation structure for low-altitude installation, in order to solve the problem mentioned in the background art. Currently, when connecting photovoltaic cables and cable connectors, the outer sheath of the cable is first stripped, and the cable core is crimped to the electrical contacts on the cable connector. However, during the connection process, the cable core is usually multi-stranded. Therefore, during the crimping process between the core and the electrical contacts, the wire is often fed separately and the electrical contacts are tightened to lock it. This operation is cumbersome and time-consuming, causing certain inconvenience to the connection of photovoltaic cables and cable connectors.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a photovoltaic cable connector assembly for low-altitude installation, comprising a connecting housing, wherein a butt joint is provided at one end of the connecting housing, and a connecting post is installed at the other end of the connecting housing;

[0007] Also includes:

[0008] A sliding groove is formed inside the connecting column. A positioning frame is provided inside the sliding groove, and two positioning plates for positioning the circuit are movably arranged inside the positioning frame. Ball-head rods are provided on the outer walls of the two positioning plates. A first track groove and a second track groove are formed inside the connecting column to restrict the sliding of the two ball-head rods respectively. A contact piece is provided inside the sliding groove.

[0009] As an optional embodiment of the photovoltaic cable connector assembly for low-altitude installation described in this invention, the positioning frame is provided with a support frame on its side, the end of the support frame is provided with a mating ring cavity, and the interior of the connecting housing is provided with an adjustment part for controlling the movement of the circuit inside the positioning frame.

[0010] As an optional embodiment of the photovoltaic cable connector assembly for low-altitude installation described in this invention, the adjusting part includes an adjusting gear ring movably installed inside the connecting housing. An adjusting gear is meshed with the side of the adjusting gear ring, and a rotating gear is provided on the side of the adjusting gear. A positioning post is fixedly connected to the outer wall of the rotating gear, and a protrusion is provided on the outer wall of the positioning post. A sliding seat is installed on the side of the mating ring cavity, and a spiral groove is opened inside the sliding seat to accommodate the sliding of the protrusion.

[0011] As an optional embodiment of the photovoltaic cable connector assembly for low-altitude installation described in this invention, the adjusting part includes an adjusting gear ring movably installed inside the connecting housing. The adjusting gear ring is meshed with an adjusting gear on its side, and a rotating gear is provided on the side of the adjusting gear. A threaded rod is fixedly connected to the outer wall of the rotating gear, and a threaded sleeve that is threadedly connected to the threaded rod is provided on the side of the mating ring cavity.

[0012] As an optional embodiment of the photovoltaic cable connector assembly for low-altitude installation described in this invention, the first track groove includes a smoothing section, a descending section, and an adjusting section connected in sequence; the second track groove includes a smoothing groove, a descending groove, and an adjusting groove connected in sequence; the smoothing section and the smoothing groove, and the descending section and the descending groove are symmetrically arranged; and the adjusting groove and the adjusting section are arranged in parallel.

[0013] As an optional embodiment of the photovoltaic cable connector assembly for low-altitude installation described in this invention, a docking spring is fixedly connected to the outer wall of the docking ring cavity, and a drive rack is provided on the side of the docking spring. A drive gear is meshed with one side of the drive rack, and a drive threaded post is provided on the outside of the drive gear. A contact piece is threaded to the outside of the drive threaded post.

[0014] As an optional embodiment of the photovoltaic cable connector assembly for low-altitude installation described in this invention, wherein: a sealing plate is provided inside the mating ring cavity, a return spring is provided between the mating ring cavity and the sealing plate, and a compression plate is fixedly connected to the outer wall of the sealing plate.

[0015] As an optional embodiment of the photovoltaic cable connector assembly for low-altitude installation described in this invention, the support frame has a connecting groove inside, and the connecting groove communicates with the mating ring cavity. A movable rod is slidably arranged inside the connecting groove, and a core rod is arranged inside the movable rod. The end of the core rod is fixedly connected to the positioning frame.

[0016] As an optional embodiment of the photovoltaic cable connector assembly for low-altitude installation described in this invention, a telescopic spring is provided between the movable rod and the positioning frame, and the telescopic spring is sleeved on the outside of the core rod.

[0017] A photovoltaic cable installation structure for low-altitude installation, comprising: a sealing shell disposed on the side of a connecting column, wherein the sealing shell is threadedly connected to the connecting column.

[0018] The present invention has the following beneficial effects:

[0019] 1. This invention uses the movement of the extrusion plate to drive the positioning frame to slide inside the sliding groove. When the positioning frame slides, the ball head rods located on the two positioning plates will slide in the first track groove and the second track groove respectively. By using the setting of the first track groove and the second track groove, multiple sets of cable cores can be clamped and transported, improving the convenience of cable wiring. It can also effectively avoid the situation where the cable cores are separated from the wiring position when multiple sets of cable cores are crimped and locked, resulting in poor contact of the cable cores.

[0020] 2. This invention utilizes the upper and lower parts and adjustment parts of the first track groove and the upper and lower grooves and the second track groove to allow the positioning plate to clamp and transport the cable core wire in the center first, so as to avoid the cable core wire from colliding with the sliding groove during the transport process, resulting in wear and bending. Furthermore, the adjustment part and adjustment groove allow the cable core wire to move downward after moving to the designated position, so as to avoid the cable core wire bending during the crimping process of the contact plate, resulting in poor contact.

[0021] 3. This invention utilizes the movement of the extrusion plate, which first causes the sealing plate to extrude the liquid inside the docking ring cavity. After the positioning frame transports the cable core to the designated position, it drives the drive rack and drive gear to mesh and slide, causing the drive gear to drive the contact plate downwards, thereby achieving the crimping and locking of the cable core. This effectively prevents the contact plate from starting to crimp before the cable core has moved to the designated position, which could lead to poor connection. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0023] Figure 2 This is a schematic cross-sectional view of the connecting housing and sealing housing of the present invention.

[0024] Figure 3 This is a schematic diagram of the connection structure between the connecting housing and the adjusting gear ring of the present invention.

[0025] Figure 4 For the present invention Figure 3 Enlarged structural diagram at point A in the middle.

[0026] Figure 5This is a schematic diagram of the connection structure between the threaded rod and the threaded sleeve of the present invention.

[0027] Figure 6 This is a schematic diagram of the connection structure between the docking ring cavity and the extrusion plate of the present invention.

[0028] Figure 7 For the present invention Figure 6 Enlarged structural diagram at point B in the middle.

[0029] Figure 8 For the present invention Figure 7 Enlarged structural diagram at point C.

[0030] Figure 9 This is a schematic diagram of the connection structure between the ball joint and the first track groove of the present invention.

[0031] Figure 10 This is a partial structural diagram of the first and second track grooves of the present invention.

[0032] Figure 11 For the present invention Figure 6 Enlarged structural diagram at point D.

[0033] In the diagram: 1. Connecting housing; 2. Connecting joint; 3. Connecting post; 4. Sealing housing; 5. Adjusting gear ring; 6. Adjusting gear; 7. Rotating gear; 8. Positioning post; 9. Protrusion; 10. Spiral groove; 11. Sliding seat; 12. Extrusion plate; 13. Sealing plate; 14. Connecting ring cavity; 15. Connecting spring; 16. Drive rack; 17. Drive gear; 18. Drive threaded post; 19. Connecting plate; 20. Sliding groove; 21. Thread 21. Threaded rod; 22. Support frame; 23. Connecting groove; 24. Movable rod; 25. Core rod; 26. Positioning frame; 27. Telescopic spring; 28. Positioning plate; 29. ​​Ball head rod; 30. First track groove; 301. Smoothing part; 302. Descending part; 303. Adjusting part; 31. Second track groove; 311. Smoothing groove; 312. Descending groove; 313. Adjusting groove; 32. Return spring; 33. Threaded sleeve; 34. Locking bolt. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] Example 1, please refer to Figures 1 to 10A photovoltaic cable connector assembly for low-altitude installation includes a connecting housing 1, with a connector 2 at one end and a connecting post 3 at the other end; it also includes a sliding groove 20, which is formed inside the connecting post 3. A positioning frame 26 is provided inside the sliding groove 20, and two positioning plates 28 for positioning the line are movably arranged inside the positioning frame 26. Ball head rods 29 are provided on the outer walls of the two positioning plates 28. A first track groove 30 and a second track groove 31 are formed inside the connecting post 3 to restrict the sliding of the two ball head rods 29 respectively. A contact piece 19 is provided inside the sliding groove 20.

[0036] A support frame 22 is provided on the side of the positioning frame 26, and a docking ring cavity 14 is provided at the end of the support frame 22. An adjustment part for controlling the movement of the circuit inside the positioning frame 26 is provided inside the connecting housing 1.

[0037] The adjustment part includes an adjustment gear ring 5 movably installed inside the connecting housing 1. An adjustment gear 6 is meshed with the side of the adjustment gear ring 5, and a rotating gear 7 is provided on the side of the adjustment gear 6. A positioning post 8 is fixedly connected to the outer wall of the rotating gear 7. A protrusion 9 is provided on the outer wall of the positioning post 8. A sliding seat 11 is installed on the side of the docking ring cavity 14. A spiral groove 10 is opened inside the sliding seat 11 to accommodate the sliding of the protrusion 9.

[0038] First, use a stripper to remove the cable sheath, exposing the cable core wire. Then, process the copper wire ends. Insert the processed copper wire ends into the sliding groove 20 on the connecting post 3, allowing them to pass between the two positioning plates 28. Then, rotate the adjusting gear ring 5 on the connecting housing 1. The adjusting gear ring 5 is fitted onto the connecting housing 1. When the adjusting gear ring 5 rotates, it drives the adjusting gear 6, which is rotatably mounted inside the connecting housing 1, to rotate. The adjusting gear 6 and the rotating gear 7 are meshed, allowing the adjusting gear 6 to drive the rotating gear 7. By adjusting the gear ring 5 and the rotating gear 7, the adjusting gear ring 5 can drive the rotating gear 7 while reducing the space occupied by the rotating gear 7 within the connecting housing 1. This allows the wiring on the connector 2 to extend into the connecting post 3. When the adjusting gear ring 5 drives the adjusting gear 6 and the rotating gear 7, it will not affect the wiring.

[0039] When the rotating gear 7 rotates, it will drive the positioning post 8 and the protrusion 9 on the outer wall of the positioning post 8 to rotate. The protrusion 9 is embedded in the spiral groove 10. When the positioning post 8 rotates, it will drive the sliding seat 11 to slide inside the connecting post 3. When the sliding seat 11 moves, it can drive the docking ring cavity 14 to move synchronously. The docking ring cavity 14 is provided with a support frame 22, and a positioning frame 26 is installed on the side of the support frame 22. When the docking ring cavity 14 moves, it will drive the support frame 22 and the positioning frame 26 to move. When the positioning frame 26 moves, it will drive the positioning plate 28 and the ball head rod 29 fixedly provided on the outer wall of the positioning plate 28 to move. The ball head rod 29 on the outer wall of the upper positioning plate 28 slides in the first track groove 30, and the ball head rod 29 on the outer wall of the lower positioning plate 28 slides in the second track groove 31.

[0040] The smoothing part 301 and the descending part 302 on the first track groove 30 allow the upper positioning plate 28 to slide downwards, while the smoothing groove 311 and the descending groove 312 on the second track groove 31 allow the lower positioning plate 28 to slide upwards. This allows the positioning plate 28 to clamp the core wire. The lengths of the descending part 302 and the descending groove 312 are both greater than the lengths of the smoothing part 301 and the smoothing groove 311, achieving the effect of clamping the core wire before conveying it. The sliding groove 20 is provided in multiple sets, and each set of sliding groove 20 has corresponding connecting components for the positioning frame 26 and the positioning plate 28, thereby achieving the effect of clamping and conveying multiple sets of copper wires of the cable, improving the convenience of cable docking and installation. By adopting a conveying method with clamping in the center, the cable core wire can be kept in the middle position of the sliding groove 20 during conveying, effectively avoiding contact between the cable core wire and the inner wall of the sliding groove 20 during the conveying process, which would cause the cable core wire to bend and wear.

[0041] As an optional embodiment of the adjustment part of the present invention, the adjustment part includes an adjustment gear ring 5 movably installed inside the connecting housing 1, an adjustment gear 6 meshing with the side of the adjustment gear ring 5, and a rotating gear 7 provided on the side of the adjustment gear 6. A threaded rod 21 is fixedly connected to the outer wall of the rotating gear 7, and a threaded sleeve 33 threadedly connected to the threaded rod 21 is provided on the side of the mating ring cavity 14.

[0042] By rotating the adjusting gear ring 5, the adjusting gear ring 5 will drive the adjusting gear 6 and the rotating gear 7 to rotate. A threaded rod 21 is fixedly provided on the outer wall of the rotating gear 7, and a threaded sleeve 33 is connected to the external thread of the threaded rod 21. When the threaded rod 21 rotates, it will drive the threaded sleeve 33 to move. The movement of the threaded sleeve 33 will drive the docking ring cavity 14 to slide inside the connecting column 3. The sliding of the docking ring cavity 14 will realize the positioning plate 28 to position and transport the cable core wire, thereby improving the convenience of cable docking.

[0043] Example 2 is an improvement on Example 1. During the clamping and conveying of the cable core, the cable core is first centered before being conveyed. However, centering the cable core may affect the subsequent locking and connection between the connector 19 and the cable core. For details, please refer to [link to example]. Figures 1 to 11 The first track groove 30 includes a smoothing part 301, a descending part 302 and an adjusting part 303 connected in sequence, and the second track groove 31 includes a smoothing groove 311, a descending groove 312 and an adjusting groove 313 connected in sequence. The smoothing part 301 and the smoothing groove 311 and the descending part 302 and the descending groove 312 are symmetrically arranged, and the adjusting groove 313 and the adjusting part 303 are arranged in parallel.

[0044] When the ball head rod 29 on the outer wall of the upper positioning plate 28 slides from the smooth part 301 into the lowering part 302, the ball head rod 29 will drive the upper positioning plate 28 to slide downward. When the ball head rod 29 on the outer wall of the lower positioning plate 28 slides along the smooth groove 311 into the lowering groove 312, the lower positioning plate 28 will move upward. Through the centered movement of the two positioning plates 28, the cable core wire is clamped and positioned. As the two ball head rods 29 slide in the lowering part 302 and the lowering groove 312 respectively, the cable core wire will be driven to move. Since the cable core wire is transported in a centered manner, if the copper wire end of the cable core wire is locked directly by adjusting the height of the contact piece 19, the copper wire end of the cable core wire will be bent, reducing the contact area between the copper wire end of the cable core wire and the contact piece 19, thereby reducing the stability of the connection.

[0045] To prevent the copper wire ends of the cable core from bending during connection, an adjustment part 303 is provided at the end of the descending part 302, and an adjustment groove 313 is provided at the end of the descending groove 312. With this arrangement, the ball head rod 29 on the outer wall of the upper positioning plate 28 slides into the adjustment part 303 along the descending part 302, and the ball head rod 29 on the outer wall of the lower positioning plate 28 slides into the adjustment groove 313 along the descending groove 312. This causes the positioning plate 28 on the outer side of the cable core to move downwards at the same time, driving the cable core to move downwards. In this way, it is possible to effectively avoid the situation where the copper wire ends of the cable core bend significantly when the connecting piece 19 locks the cable core, resulting in a large reduction in the contact surface with the connecting piece 19 and unstable connection.

[0046] It should be noted that the adjusting gear ring 5 has bolt holes on its surface. When the adjusting gear ring 5 is rotated to the designated position, the locking bolt 34 is inserted into the bolt hole inside the adjusting gear ring 5 and locked with the connecting housing 1, thereby locking the adjusting gear ring 5 and ensuring the stability of the cable core wire connection.

[0047] Example 3 is an improvement on Example 2. It addresses the tedious and time-consuming process of sequentially locking the copper wire ends of the cable core with the connector 19. For details, please refer to [link / reference needed]. Figures 1 to 11 A docking spring 15 is fixedly connected to the outer wall of the docking ring cavity 14, and a drive rack 16 is provided on the side of the docking spring 15. A drive gear 17 is meshed on one side of the drive rack 16. A drive threaded post 18 is provided on the outside of the drive gear 17. A contact piece 19 is threadedly connected to the outside of the drive threaded post 18.

[0048] A drive rack 16 is fixedly installed on the outer wall of the docking ring cavity 14. When the docking ring cavity 14 slides inside the connecting post 3, the docking ring cavity 14 will simultaneously drive the drive rack 16 to slide inside the connecting post 3. The drive rack 16 is meshed with a drive gear 17 on its side. When the drive rack 16 moves, it will drive the drive gear 17 and the drive threaded post 18 fixed on the outer wall of the drive gear 17 to rotate. The drive threaded post 18 is threadedly connected to the contact piece 19. The reciprocating rotation of the drive threaded post 18 realizes the rise and fall of the contact piece 19. There are multiple sets of drive gears 17 and drive threaded posts 18, which can realize the simultaneous adjustment of the height of the contact pieces 19 inside multiple sets of sliding grooves 20, so as to realize the crimping and locking of the copper wire end of the cable core, thereby achieving the effect of locking multiple sets of cable cores at the same time. It should be noted that the contact piece 19 is composed of an insulating part and a connecting part. This arrangement ensures that the contact piece 19 is connected to the copper wire end of the cable core while avoiding the problem of a large amount of internal components being energized.

[0049] Example 4 is an improvement on Example 3. It avoids the situation where the positioning frame 26 moves synchronously with the core wire and the contact plate 19, causing the contact plate 19 to start moving downwards before the cable core wire has reached the designated position, resulting in unstable power connection. For details, please refer to [link to example]. Figures 1 to 10 A sealing plate 13 is provided inside the docking ring cavity 14, a return spring 32 is provided between the docking ring cavity 14 and the sealing plate 13, and a compression plate 12 is fixedly connected to the outer wall of the sealing plate 13.

[0050] The support frame 22 has a connecting groove 23 inside, and the connecting groove 23 communicates with the docking ring cavity 14. A movable rod 24 is slidably arranged inside the connecting groove 23. A core rod 25 is arranged inside the movable rod 24. The end of the core rod 25 is fixedly connected to the positioning frame 26.

[0051] A telescopic spring 27 is provided between the movable rod 24 and the positioning frame 26, and the telescopic spring 27 is sleeved on the outside of the core rod 25;

[0052] When the sliding seat 11 or the threaded sleeve 33 slides inside the connecting post 3, the sliding seat 11 and the extrusion plate 12 are fixedly connected, and the threaded sleeve 33 and the extrusion plate 12 are fixedly connected. Therefore, when the sliding seat 11 or the threaded sleeve 33 slides inside the connecting post 3, it drives the extrusion plate 12 to move. The end of the extrusion plate 12 is provided with a sealing plate 13, which is slidably disposed inside the docking ring cavity 14. The docking ring cavity 14 contains liquid, and a docking spring 15 is provided on the side of the docking ring cavity 14. The docking spring 15 is designed so that the docking ring cavity 14 will only contract when it is subjected to a large force. When the extrusion plate 12 moves, it first drives the sealing plate 13 to slide inside the docking ring cavity 14 and squeezes the liquid inside the docking ring cavity 14. The liquid inside the docking ring cavity 14 flows into the connecting groove 23 inside the support frame 22. The connecting groove 23 is also provided with a movable rod 24. The flowing liquid will squeeze the movable rod 24, causing the movable rod 24 to drive the core rod 25 to move.

[0053] A positioning frame 26 is provided at the end of the core rod 25, which in turn drives the positioning frame 26 to move. In this way, the positioning frame 26 moves first to realize the clamping distance of the cable core wire, and the column provided on the top of the positioning frame 26 moves to the right end of the limiting groove on the connecting column 3 that can accommodate the sliding of the support frame 22. At this time, the cable core wire moves to the designated position, and the sealing plate 13 compresses the return spring 32 to the maximum position. As the extrusion plate 12 continues to move, the sealing plate 13 will drive the docking ring cavity 14 to move, and compress the docking spring 15. At the same time, the drive rack 16 drives the drive gear 17 to move, driving the docking ring cavity 14 to move. The electrode 19 moves downward to crimp and lock the cable core wire connector. When the docking ring cavity 14 moves, it will drive the support frame 22 to move. Since the column set on the top of the positioning frame 26 has moved to the rightmost end of the limit groove, the positioning frame 26 cannot move to the right at this time. As the support frame 22 continues to move, the core rod 25 will slide into the movable rod 24, and at the same time, the telescopic spring 27 will be compressed, realizing the normal movement of the docking ring cavity 14. In this way, the docking stability of the cable core wire is effectively improved, and the situation where the electrode 19 starts to move downward to crimp the cable core wire before the cable core wire has moved to the designated position is effectively avoided.

[0054] Example 5, please refer to Figures 1 to 2 A photovoltaic cable installation structure for low-altitude installation includes a sealing housing 4 disposed on the side of a connecting column 3, and the sealing housing 4 is threadedly connected to the connecting column 3.

[0055] The threaded connection between the connecting post 3 and the sealing housing 4 allows for quick installation and docking. When crimping and locking the cable core, the entire cable is first passed through the sealing housing 4, and then the cable core is sequentially inserted into the sliding groove 20, which facilitates the subsequent docking of the connecting post 3 and the sealing housing 4 and hides the cable core.

[0056] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0057] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A photovoltaic cable connector assembly for low-altitude installation, comprising a connecting housing (1), wherein a connector (2) is provided at one end of the connecting housing (1), and a connecting post (3) is installed at the other end of the connecting housing (1). Its features are, Also includes: A sliding groove (20) is provided inside the connecting column (3). A positioning frame (26) is provided inside the sliding groove (20), and two positioning plates (28) for positioning the line are movably provided inside the positioning frame (26). Ball head rods (29) are provided on the outer walls of the two positioning plates (28). A first track groove (30) and a second track groove (31) are provided inside the connecting column (3) to restrict the sliding of the two ball head rods (29). A contact piece (19) is provided inside the sliding groove (20).

2. The photovoltaic cable connector assembly for low-altitude installation according to claim 1, characterized in that: The positioning frame (26) is provided with a support frame (22) on its side, and the end of the support frame (22) is provided with a docking ring cavity (14). The connecting housing (1) is provided with an adjustment part for controlling the movement of the circuit inside the positioning frame (26).

3. The photovoltaic cable connector assembly for low-altitude installation according to claim 2, characterized in that: The adjustment part includes an adjustment gear ring (5) movably installed inside the connecting housing (1). The adjustment gear ring (5) is meshed with an adjustment gear (6) on its side, and a rotating gear (7) is provided on the side of the adjustment gear (6). A positioning post (8) is fixedly connected to the outer wall of the rotating gear (7). A protrusion (9) is provided on the outer wall of the positioning post (8). A sliding seat (11) is installed on the side of the docking ring cavity (14). A spiral groove (10) is opened inside the sliding seat (11) to accommodate the sliding of the protrusion (9).

4. The photovoltaic cable connector assembly for low-altitude installation according to claim 2, characterized in that: The adjustment part includes an adjustment gear ring (5) movably installed inside the connecting housing (1). The adjustment gear ring (5) is meshed with an adjustment gear (6) on its side, and a rotating gear (7) is provided on the side of the adjustment gear (6). A threaded rod (21) is fixedly connected to the outer wall of the rotating gear (7), and a threaded sleeve (33) that is threadedly connected to the threaded rod (21) is provided on the side of the mating ring cavity (14).

5. The photovoltaic cable connector assembly for low-altitude installation according to any one of claims 1-4, characterized in that: The first track groove (30) includes a smoothing section (301), a descending section (302) and an adjusting section (303) connected in sequence. The second track groove (31) includes a smoothing groove (311), a descending groove (312) and an adjusting groove (313) connected in sequence. The smoothing section (301) and the smoothing groove (311) and the descending section (302) and the descending groove (312) are symmetrically arranged. The adjusting groove (313) and the adjusting section (303) are arranged in parallel.

6. The photovoltaic cable connector assembly for low-altitude installation according to claim 2, characterized in that: A docking spring (15) is fixedly connected to the outer wall of the docking ring cavity (14), and a drive rack (16) is provided on the side of the docking spring (15). A drive gear (17) is meshed on one side of the drive rack (16), and a drive threaded post (18) is provided on the outside of the drive gear (17). A contact piece (19) is threaded on the outside of the drive threaded post (18).

7. The photovoltaic cable connector assembly for low-altitude installation according to claim 6, characterized in that: A sealing plate (13) is provided inside the docking ring cavity (14), a reset spring (32) is provided between the docking ring cavity (14) and the sealing plate (13), and a compression plate (12) is fixedly connected to the outer wall of the sealing plate (13).

8. The photovoltaic cable connector assembly for low-altitude installation according to claim 2, characterized in that: The support frame (22) has a connecting groove (23) inside, and the connecting groove (23) is connected to the docking ring cavity (14). A movable rod (24) is slidably arranged inside the connecting groove (23), and a core rod (25) is arranged inside the movable rod (24). The end of the core rod (25) is fixedly connected to the positioning frame (26).

9. The photovoltaic cable connector assembly for low-altitude installation according to claim 8, characterized in that: A telescopic spring (27) is provided between the movable rod (24) and the positioning frame (26), and the telescopic spring (27) is sleeved on the outside of the core rod (25).

10. A photovoltaic cable installation structure for low-altitude installation, characterized in that, The photovoltaic cable connector assembly for low-altitude installation according to any one of claims 5-9 includes a sealing housing (4) disposed on the side of the connecting post (3), and the sealing housing (4) is threadedly connected to the connecting post (3).

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