Photovoltaic track connecting piece

By introducing waterproof mechanisms and tensioning components into the photovoltaic track connectors, the problem of bolt rusting was solved, achieving stable connections and extending component lifespan.

CN223771968UActive Publication Date: 2026-01-06CATH (XIAMEN) ENERGY TECH CO LTD
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Patent Information

Application Number
CN202520147719.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-22
Publication Date
2026-01-06
Estimated Expiration
2035-01-22

AI Technical Summary

Technical Problem

Traditional photovoltaic track connectors are prone to rust due to exposed bolts in gaps, which increases the difficulty of maintenance.

Method used

A waterproof mechanism is adopted, including rubber gaskets, corrugated pipes and fixing blocks, to seal the contact between the fixing bolts and nuts and the connecting parts, preventing moisture from entering, and achieving a stable connection by combining tension members and bending sections.

Benefits of technology

It effectively prevents bolts from rusting, reduces maintenance difficulty, extends component life, and improves connection stability.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223771968U_ABST
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Abstract

The utility model discloses a photovoltaic track connecting piece, and relates to the technical field of photovoltaic construction, the photovoltaic track connecting piece comprises tracks and connecting pieces installed between adjacent tracks, fixing bolts used for fixing the tracks are movably arranged in the two ends of each connecting piece, waterproof mechanisms are arranged on the outer sides of the fixing bolts, and a plurality of fixing holes are formed in the outer walls of the tracks; by rotating the fixing bolt, the fixing inserting block can be pushed into the fixing hole, so that the connecting piece is fixedly installed at the joint of the two adjacent rails, the corrugated pipe and other components can cover a screw rod of the fixing bolt, and the rubber gasket can seal the space between a nut of the fixing bolt and the connecting piece; therefore, the fixing bolt is not easy to rust, the difficulty of maintaining components such as the fixing bolt in the later period is reduced, and the fixing bolt is convenient to use and practical.
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Description

Technical Field

[0001] This application relates to the field of photovoltaic construction technology, and in particular to a photovoltaic track connector. Background Technology

[0002] A photovoltaic (PV) track connector is an assembly used to connect the PV track and related components, primarily ensuring the stability and safety of the PV system. PV track connectors are typically made of high-strength, corrosion-resistant materials such as stainless steel or aluminum alloy to ensure long-term use in harsh environments without damage. Traditional tracks are often designed to be relatively short due to strength considerations, necessitating connectors to link multiple tracks together. The traditional connection method involves bolting the connectors between adjacent tracks.

[0003] Patent CN205725571U discloses "a photovoltaic track connector, including a base plate, with two side plates extending towards the same side of the base plate, the side plates arranged side by side, and barbs extending from the inner surfaces of the side plates towards the base plate. The photovoltaic track connector provided by this utility model achieves a stable connection between the two tracks and the photovoltaic track connector by placing two adjacent tracks on the base plate, and the barbs on both sides of the base plate cooperating with the hooks on the track side plates, effectively increasing the bending resistance at the track connection and improving the stability of the track connection."

[0004] Regarding the aforementioned technologies, the inventor believes that the gap between the base plate of one photovoltaic track connector and the bottom of the track causes a portion of the bolts to be directly exposed in the gap after the photovoltaic track connector is fixed to two adjacent tracks using bolts. External moisture can enter the gap and come into direct contact with the bolts, making the exposed part of the bolts prone to rusting after long-term use. Rusty bolts are difficult to rotate, increasing the difficulty of later maintenance. Therefore, improvements are needed. Utility Model Content

[0005] To address the aforementioned issues, this application provides a photovoltaic track connector.

[0006] The photovoltaic track connector provided in this application adopts the following technical solution:

[0007] A photovoltaic track connector includes a track and a connector installed between adjacent tracks. The connector has fixing bolts movably disposed at both ends for fixing the track. A waterproof mechanism is provided on the outside of the fixing bolts. The outer wall of the track has several fixing holes. The waterproof mechanism includes a rubber washer located on one side of the fixing bolt nut and abutting against the outer wall of the connector; several corrugated pipes fixed on the side of the connector near the track to cover the bolt thread; and a fixing block located at one end of the corrugated pipes and inserted into the fixing hole. The bolt thread is inserted into the fixing block. Several tension members are provided between the connector and the fixing block to pull the fixing block towards the connector.

[0008] By adopting the above technical solution, the fixing block can be pushed into the fixing hole by rotating the fixing bolt, thereby fixing the connector at the connection of two adjacent tracks. The corrugated pipe and other components can cover the bolt of the fixing bolt, and the rubber gasket can seal the nut of the fixing bolt and the connector, so that external moisture will not directly contact the fixing bolt, thus making the fixing bolt less prone to rusting and reducing the difficulty of maintenance of the fixing bolt and other components in the later stage.

[0009] Preferably, the connector is slidably disposed on one side of the track, and two first bending sections are provided at one edge of the track, and two second bending sections that cooperate with the first bending sections are provided on the side edge of the connector.

[0010] By adopting the above technical solution, the connection can slide on one side of the track through the cooperation of the first and second bending sections, thereby achieving a stable connection between the two tracks and the connection.

[0011] Preferably, the connector has two sets of mounting holes in the middle, the fixing bolt is threaded in the matching mounting holes, a connecting ring is fixed between one end of the corrugated pipe and the outer wall of the fixing block, a plurality of the tension members are fixedly connected to the edge of the connecting ring near the connector, the fixing block has an insertion hole in the middle of the end opposite to the fixing hole, and the screw of the fixing bolt is inserted into the insertion hole of the fixing block.

[0012] By adopting the above technical solution, the fixing block can be connected to the screw of the fixing bolt through the insertion hole, and the connecting ring can connect the corrugated pipe and the fixing block.

[0013] Preferably, one side of the screw of the fixing bolt is fitted with a ball that is rotatably connected in the fixing block, and a sleeve hole is opened in the middle of the insertion hole of the fixing block, and the ball is rotatably connected in the sleeve hole of the fixing block.

[0014] By adopting the above technical solution, when the fixing bolt rotates, it will press one end of the fixing block into the fixing hole through the ball, thereby fixing the track and the connecting parts.

[0015] In summary, this application includes at least one of the following beneficial technical effects:

[0016] 1. By rotating the fixing bolt, the fixing block can be pushed into the fixing hole, thereby fixing the connector at the connection of two adjacent tracks. The corrugated pipe and other components can cover the bolt thread, and the rubber gasket can seal the connection between the bolt nut and the connector, preventing external moisture from directly contacting the fixing bolt, thus making the fixing bolt less prone to rusting. This reduces the difficulty of later maintenance of the fixing bolt and other components, making it convenient and practical.

[0017] 2. Through the cooperation of the first and second bending sections, the connector can slide on one side of the track, thereby achieving a stable connection between the two tracks and the connector. When the screw end of the fixing bolt does not contact the fixing block, the fixing block will be pulled towards the connector under the tension of the tensioning component. This prevents the fixing block from continuously rubbing against the track when the connector slides, thus avoiding damage to the outer surface of the fixing block and extending the service life of the fixing block. The ball can also reduce the resistance when the fixing bolt rotates by its own rotation. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of a photovoltaic track connector according to an embodiment of this application;

[0019] Figure 2 This is a schematic diagram of the internal structure of a photovoltaic track connector according to an embodiment of this application;

[0020] Figure 3 This is a top view schematic diagram of the overall structure of a photovoltaic track connector according to an embodiment of this application;

[0021] Figure 4 This is an elevation view of the connector, which is the main feature of the embodiments of this application.

[0022] Figure 5 The embodiments of this application mainly embody Figure 2 Enlarged view of the A-structure in the middle;

[0023] Reference numerals: 1. Track; 11. First bend; 12. Fixing hole; 2. Connector; 21. Second bend; 22. Mounting hole; 23. Fixing bolt; 3. Rubber washer; 4. Corrugated pipe; 41. Fixing block; 42. Tensioning component; 43. Connecting ring; 44. Insertion hole; 45. Sleeve hole; 46. Ball. Detailed Implementation

[0024] The following is in conjunction with the appendix Figures 1-5This application will be described in further detail.

[0025] This application discloses a photovoltaic track connector.

[0026] A photovoltaic track connector, as shown in the reference Figure 1-3 It includes a track 1 and a connector 2. The connector 2 is installed between adjacent tracks 1 and can connect two adjacent tracks 1 of the photovoltaic bracket.

[0027] Reference Figure 1 , Figure 2 and Figure 4 The connector 2 is slidably disposed on one side of the track 1. Two first bending sections 11 are provided at one edge of the track 1. Two second bending sections 21 that cooperate with the first bending sections 11 are provided on the edge of the connector 2. Through the cooperation of the first bending sections 11 and the second bending sections 21, the connector 2 can slide on one side of the track 1, thereby achieving a stable connection between two adjacent tracks 1 and the connector 2.

[0028] Reference Figure 2 , Figure 4 and Figure 5 The connector 2 has fixing bolts 23 for fixing the track 1 movably installed at both ends. The connector 2 has two sets of mounting holes 22 in the middle. The fixing bolts 23 are threaded in the matching mounting holes 22. The connector 2 can support and limit the fixing bolts 23 through the mounting holes 22.

[0029] Reference Figure 2 , Figure 4 and Figure 5 The outer side of the fixing bolt 23 is equipped with a waterproof mechanism. Several fixing holes 12 are opened on the outer wall of the track 1. The waterproof mechanism includes a rubber washer 3 located on the nut side of the fixing bolt 23 and abutting against the outer wall of the connector 2, several corrugated pipes 4 fixed on the side of the connector 2 near the track 1 to cover the bolt 23, and a fixing block 41 located at one end of the corrugated pipe and inserted into the fixing hole 12. The bolt 23 is inserted into the fixing block 41. By rotating the fixing bolt 23, the fixing block 41 can be pushed into the fixing hole 12, thereby fixing the connector 2 at the connection of two adjacent tracks 1. The corrugated pipes 4 and other components can cover the bolt 23, and the rubber washer 3 can seal between the nut of the fixing bolt 23 and the connector 2, so that external moisture will not directly contact the fixing bolt 23, thus making the fixing bolt 23 less prone to rust and reducing the difficulty of maintenance of the fixing bolt 23 and other components in the later stage.

[0030] Reference Figure 2 and Figure 5A connecting ring 43 is fixed between one end of the corrugated pipe 4 and the outer wall of the fixed plug 41. The connecting ring 43 can connect the corrugated pipe 4 and the fixed plug 41. The fixed plug 41 has a socket 44 in the middle of the end away from the fixed hole 12. The screw of the fixing bolt 23 is inserted into the socket 44 of the fixed plug 41. The fixed plug 41 can be connected to the screw of the fixing bolt 23 through the socket 44.

[0031] Reference Figure 2 and Figure 5 The screw of the fixing bolt 23 abuts against a ball 46 rotatably connected in the fixing block 41. The fixing block 41 has a sleeve hole 45 in the middle of the insertion hole 44. The ball 46 is rotatably connected in the sleeve hole 45 of the fixing bolt 41. The fixing block 41 can connect and limit the ball 46 through the sleeve hole 45. The connection method between the fixing block 41 and the ball 46 is the same as the connection method of the existing ball joint rotation mechanism. When the fixing bolt 23 rotates, it will press one end of the fixing block 41 into the fixing hole 12 through the ball 46, thereby fixing the track 1 and the connector 2. When the fixing bolt 23 rotates, it will drive the ball 46 to rotate slightly. At this time, the ball 46 can reduce the resistance when the fixing bolt 23 rotates by its own rotation.

[0032] Reference Figure 2 and Figure 5 Between the connector 2 and the fixed plug 41, there are several tension members 42 for pulling the fixed plug 41 toward the connector 2. The tension members 42 are fixedly connected to the edge of the connecting ring 43 near the connector 2. The tension members 42 are fixedly connected between the connecting ring 43 and the connector 2. The tension members 42 can be objects with tension such as rubber bands, wide rubber ropes, and tension springs. When the screw end of the fixing bolt 23 does not contact the fixed plug 41, the fixed plug 41 will be pulled toward the connector 2 under the tension of the tension members 42. This prevents the fixed plug 41 from continuously rubbing against the track 1 when the connector 2 slides, thus damaging the outer surface of the fixed plug 41 and extending the service life of the fixed plug 41.

[0033] The implementation principle of a photovoltaic track connector in this application embodiment is as follows:

[0034] In use, the first bending section 11 and the second bending section 21 cooperate to allow the connector 2 to slide on one side of the track 1, so that the connector 2 can slide between two adjacent tracks 1. Then, the rubber washer 3 is put on the outside of the screw of the fixing bolt 23, and then the screw of the fixing bolt 23 is screwed into the mounting hole 22 of the connector 2.

[0035] When the fixing bolt 23 rotates, it will move laterally on the connector 2. After moving and rotating, the screw end of the fixing bolt 23 will be inserted into the insertion hole 44 of the fixing block 41. As the fixing bolt 23 continues to move, the fixing bolt 23 will press the ball 46 to insert one end of the fixing block 41 into the fixing hole 12, thereby fixing the track 1 and the connector 2. At the same time, the nut of the fixing bolt 23 will tightly press the rubber washer 3 against the outer wall of the connector 2.

[0036] At this time, the corrugated pipe 4 and other components can cover the screw of the fixing bolt 23, and the rubber washer 3 can seal the nut of the fixing bolt 23 and the connecting part 2, so that external moisture will not directly contact the fixing bolt 23, thus making the fixing bolt 23 less prone to rust and reducing the difficulty of maintaining the fixing bolt 23 and other components in the later stage.

[0037] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A photovoltaic track connector, comprising a track (1) and a connector (2) installed between adjacent tracks (1), a fixing bolt (23) for fixing the track (1) is movably arranged at both ends of the connector (2), and a waterproof mechanism is arranged outside the fixing bolt (23), characterized in that: a plurality of fixing holes (12) are formed in the outer wall of the track (1), the waterproof mechanism comprises a rubber washer (3) arranged on one side of the nut of the fixing bolt (23) and abutting against the outer wall of the connector (2), a plurality of corrugated pipes (4) fixedly arranged on the side of the connector (2) close to the track (1) and covering the screw rod of the fixing bolt (23), and a fixing block (41) arranged at one end of the corrugated pipe (4) and inserted into the fixing hole (12), the screw rod of the fixing bolt (23) is inserted into the fixing block (41), and a plurality of tension members (42) are arranged between the connector (2) and the fixing block (41) for pulling the fixing block (41) towards the connector (2).

2. A photovoltaic rail connector according to claim 1, wherein: The connector (2) is slidably arranged on one side of the track (1), and two first bending sections (11) are arranged at the edge of one side of the track (1).

3. A photovoltaic rail connector according to claim 2, wherein: A second bending section (21) is arranged on the edge of the side close to the connector (2).

4. A photovoltaic rail connector according to claim 1, wherein: Two groups of mounting holes (22) are formed in the middle of the connector (2), and the fixing bolt (23) is threadedly arranged in the matching mounting hole (22).

5. A photovoltaic rail connector according to claim 1, wherein: A connecting ring (43) is fixedly arranged between one end of the corrugated pipe (4) and the outer wall of the fixing block (41), and a plurality of tension members (42) are fixedly connected to the connecting ring (43) at the edge of the side close to the connector (2).

6. A photovoltaic rail connector according to claim 1, wherein: A plug hole (44) is formed in the middle of one end of the fixing block (41) away from the fixing hole (12), and the screw rod of the fixing bolt (23) is inserted into the plug hole (44) of the fixing block (41).

7. A photovoltaic rail connector according to claim 6, wherein: A spherical ball (46) rotatably connected to the fixing block (41) is arranged on one side of the screw rod of the fixing bolt (23).

8. A photovoltaic rail connector according to claim 7, wherein: A sleeve hole (45) is formed in the middle of the plug hole (44) of the fixing block (41), and the spherical ball (46) is rotatably connected to the sleeve hole (45) of the fixing block (41).

Citation Information

Patent Citations

  • Rail connection member

    CN205725571U