Device suitable for protecting solar photovoltaic panel connecting piece

By providing a sealing structure of bolt fixings and a safety cover in the solar photovoltaic panel connector, the problem of easy rust of the connector is solved, the stability and safety are improved, and the maintenance cost is reduced.

CN223488132UActive Publication Date: 2025-10-28CHINA RAILWAY CONSTR GROUP CO LTD +2
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Patent Information

Application Number
CN202422890651.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-26
Publication Date
2025-10-28
Estimated Expiration
2034-11-26

AI Technical Summary

Technical Problem

Solar photovoltaic panel connectors are susceptible to rust due to rain erosion in complex and changing environments, which affects mechanical strength and connection performance, increases maintenance costs and poses safety risks.

Method used

A device including a bottom bracket, a support beam, a sealed connection assembly and a photovoltaic panel was designed. By arranging bolt fasteners and a safety cover between the support beams, a sealed structure was formed to prevent rainwater from eroding the bolts and enhance the connection stability.

Benefits of technology

It effectively prevents bolts from rusting, improves the stability and safety of connectors, reduces maintenance costs, and ensures the long-term stable operation of the photovoltaic panel system.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a device suitable for protecting a solar photovoltaic panel connecting piece, which belongs to the field of solar photovoltaic panel fixing equipment and comprises a bottom support, a supporting beam, a sealing connecting assembly and a photovoltaic panel. The supporting beam is connected to the bottom support. The sealing connection assemblies and the photovoltaic panels are sequentially and alternately arranged between the adjacent supporting beams. The sealing connection assembly comprises a bolt, a bolt fixing piece, an adjusting nut and a safety cover. The bolt fixing pieces are connected between the two adjacent supporting beams; the upper end of the bolt is connected with the bolt fixing piece, and the lower end is connected with the bottom bracket; the safety cover is connected between the two adjacent supporting beams and is arranged above the bolts; according to the utility model, rainwater erosion can be effectively isolated, waterproof and rust-proof functions are realized, long-term stable operation of a connecting piece in a severe environment is guaranteed, and reduction of connection performance, reduction of safety and high maintenance cost caused by corrosion are reduced.
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Description

Technical Field

[0001] This utility model belongs to the field of solar photovoltaic panel fixing equipment, specifically, it relates to a device suitable for protecting the connectors of solar photovoltaic panels. Background Technology

[0002] Solar photovoltaic (PV) panels, as a crucial component of clean energy, are now widely used. However, in their complex and variable operating environments, the connectors of solar PV panels often face severe challenges. For example, the alternating wet and dry conditions in complex environments such as rooftops and outdoor locations pose a significant challenge to the durability of the connectors. Rainwater erosion not only causes corrosion of the metal surfaces of the connectors, weakening their mechanical strength, but also significantly reduces connection performance and safety. Corroded connectors are prone to loosening or even detachment, threatening not only the safety of the PV panels but also potentially causing accidents. Furthermore, regular corrosion inspection and replacement increase system maintenance costs, and the difficulty of maintenance is further compounded by the fact that the connectors are often located in concealed areas. Therefore, to overcome these problems and improve the overall performance and economic benefits of solar PV systems, an innovative protective device is urgently needed. Summary of the Invention

[0003] In order to overcome the problems existing in the background technology, this utility model provides a device suitable for protecting solar photovoltaic panel connectors, which can effectively isolate rainwater erosion, provide waterproof and rust prevention functions, ensure the long-term stable operation of connectors in harsh environments, and reduce the decline in connection performance, reduced safety and high maintenance costs caused by corrosion.

[0004] To achieve the above objectives, this utility model is implemented through the following technical solution:

[0005] The device for protecting solar photovoltaic panel connectors includes a bottom bracket, a support beam, a sealing connection assembly, and a photovoltaic panel; the support beam is connected to the bottom bracket; the sealing connection assembly and the photovoltaic panel are alternately arranged between adjacent support beams.

[0006] The sealing connection assembly includes a bolt, a bolt fastener, an adjusting nut, and a safety cover; the bolt fastener is connected between two adjacent support beams; the upper end of the bolt is connected to the bolt fastener, and the lower end is connected to the bottom bracket; the safety cover is connected between two adjacent support beams and is positioned above the bolt.

[0007] Preferably, the fixing teeth are flush with the inner surface of the support beam.

[0008] Preferably, the bolt fastener includes a middle plate and lugs connected to both sides of the middle plate; the middle plate has bolt holes, and the bolt passes through the bolt holes to connect with the bolt fastener.

[0009] Preferably, the upper end face of the support beam is provided with a snap-fit ​​assembly; the snap-fit ​​assembly includes a fixing tooth and a track plate; the fixing tooth and the track plate are both vertically fixed to the upper end face of the support beam, and a snap-fit ​​is formed between the fixing tooth and the track plate; the track plate has a splicing track groove on the side facing the sealing connection assembly.

[0010] Preferably, the ear matches the fixing tooth and is secured to the upper part of the fixing tooth.

[0011] Preferably, the safety cover includes a top plate and two side plates on both sides of the top plate; each of the two side plates has a snap-fit ​​plate on its outer side; the snap-fit ​​plate snaps into the splicing track groove; the lower end face of the top plate abuts against the upper end face of the bolt.

[0012] Preferably, a connecting screw is used to connect the safety cover and the bolt.

[0013] Preferably, the photovoltaic panel is disposed between the track plates of two adjacent beams; the adjacent surfaces of the photovoltaic panel and the beams and track plates are covered with flexible material.

[0014] The beneficial effects of this utility model are:

[0015] This invention addresses the problem of traditional devices being susceptible to rain erosion and reduced load-bearing capacity in outdoor environments. By installing bolt fasteners between two support beams, it provides a fixed connection point for the bolts. The connection between the lugs and fixing teeth, along with the protective cap above the bolts, effectively shields them from rainwater, preventing rust. The safety cap seals the gap between the two support beams, preventing rainwater ingress and avoiding rust on the connecting metal parts. The tight, secure, and robust connection structure of this invention not only provides a seal but also enhances the stability of the entire device structure, ensuring the long-term stable operation of the photovoltaic panel installation system. Furthermore, the connection between the safety cap and the bolts is secured with screws, further reinforcing the connection structure and improving system reliability. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a top view of the present invention (with the safety cover removed).

[0018] Figure 3 This is a perspective view of the structure of the safety cover of this utility model;

[0019] Figure 4 This is a schematic diagram showing the connection relationship between the snap-fit ​​component and the photovoltaic panel of this utility model;

[0020] In the diagram, 1-bottom bracket, 2-support beam, 3-bolt, 4-bolt fastener, 5-safety cover, 51-top plate, 52-side plate, 53-clamping plate, 6-fixing clip, 7-track plate, 8-splitting track groove, 9-flexible material, 11-clamping ear, 12-intermediate plate, 13-connecting screw, 14-extension plate A, 15-extension plate B, 16-intermediate connecting plate, 20-photovoltaic panel. Detailed Implementation

[0021] To make the objectives, technical solutions, and beneficial effects of this utility model clearer, the preferred embodiments of this utility model will be described in detail below with reference to the accompanying drawings, so as to facilitate the understanding of those skilled in the art.

[0022] In the description of this utility model, unless otherwise stated, the terms "inner", "upper", "lower", etc., indicate the orientation or state relationship based on the orientation or state relationship shown in the drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "equipped with" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art will understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0024] like Figure 1-4 As shown, the device for protecting solar photovoltaic panel connectors includes a bottom bracket 1, a support beam 2, a sealing connection assembly, and a photovoltaic panel 20.

[0025] The support beam 2 is fixedly connected to the bottom bracket 1; the sealing connection assembly and the photovoltaic panel 20 are alternately arranged between adjacent support beams 2.

[0026] The sealing connection assembly includes bolts 3, bolt fasteners 4, connecting screws 13 and safety caps 5. The bolt fasteners include an intermediate plate 12 and lugs 11 connected to both sides of the intermediate plate. The intermediate plate 12 has bolt holes for the bolts 3 to pass through.

[0027] The upper end face of the support beam 2 is provided with a snap-fit ​​assembly, which includes a fixing tooth 6 and a track plate 7. Both the fixing tooth 6 and the track plate 7 are vertically fixed to the upper end face of the support beam 2. The fixing tooth 6 is flush with the inner side of the support beam 2 (facing the bolt direction), thus ensuring a tight fit between the lug 11 and the fixing tooth 6, improving the stability and sealing of the structure. A locking groove is formed between the fixing tooth 6 and the track plate 7. The lugs 11 on both sides of the bolt fastener 4 are respectively snapped onto the fixing teeth 6 of the two sides of the support beam 2. The track plate 7 has a splicing track groove 8 on the side facing the sealing connection assembly. The safety cover 5 includes a top plate 51 and two side plates 52 located on both sides of the top plate 51. A snap-fit ​​plate 53 is located on the outer side of the two side plates 52 (with the side facing the bolt 3 being the inner side and the side away from the bolt 3 being the outer side). The snap-fit ​​plate 53 snaps into the splicing track groove 8. The lower end face of the top plate 51 abuts against the upper end face of the bolt 3. One side of the side plate 52 is in close contact with the track plate 7, and the other side is in close contact with the retaining lug 11. The bolt 3 is connected between the bolt fixing member 4 and the bottom bracket 1. A connecting screw 13 connects the safety cover 5 and the bolt 3.

[0028] This invention, by incorporating bolt fasteners 4 between two support beams 2, provides a fixed connection point for the bolts 3. The connection between the lugs 11 and the fixing teeth 6, along with the protective cover 5 above the bolts 3, effectively seals the bolts 3 and support beams 2, protecting them from rainwater. This effectively prevents the bolts from getting wet and rusting, and also prevents rainwater from entering the photovoltaic panel's support structure. The connection structure of this invention is tight, secure, and robust. While providing a seal, it also makes the entire device structure more stable, thus ensuring the long-term stable operation of the entire photovoltaic panel installation system.

[0029] The photovoltaic panel 20 is installed between the track slabs 7 of two adjacent support beams 2; the adjacent surfaces of the photovoltaic panel 20 and the support beams 2 and track slabs 7 are covered with flexible material 9, which plays a seismic role, and the flexible material 9 can be rubber.

[0030] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although the utility model has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made to it in form and detail without departing from the scope defined by the claims of this utility model.

Claims

1. A device for protecting connectors of solar photovoltaic panels, characterized in that, It includes a bottom bracket (1), a support beam (2), a sealing connection assembly, and a photovoltaic panel (20); the support beam (2) is connected to the bottom bracket (1); the sealing connection assembly and the photovoltaic panel (20) are alternately arranged between adjacent support beams (2); The sealing connection assembly includes a bolt (3), a bolt fastener (4), a connecting screw (13), and a safety cover (5); the bolt fastener (4) is connected between two adjacent support beams (2); the upper end of the bolt (3) is connected to the bolt fastener (4), and the lower end is connected to the bottom bracket (1); the safety cover (5) is connected between two adjacent support beams (2) and is positioned above the bolt (3); the connecting screw (13) is connected between the safety cover (5) and the bolt (3).

2. The device for protecting solar photovoltaic panel connectors according to claim 1, characterized in that, The bolt fastener (4) includes a middle plate (12) and lugs (11) connected to both sides of the middle plate; the middle plate (12) has bolt holes, and the bolt (3) passes through the bolt holes and connects to the bolt fastener (4).

3. The device for protecting solar photovoltaic panel connectors according to claim 2, characterized in that, The upper end face of the support beam (2) is provided with a snap-fit ​​assembly; the snap-fit ​​assembly includes a fixed snap-fit ​​tooth (6) and a track plate (7); the fixed snap-fit ​​tooth (6) and the track plate (7) are both vertically fixed to the upper end face of the support beam (2), and a snap-fit ​​is formed between the fixed snap-fit ​​tooth (6) and the track plate (7); the track plate (7) has a splicing track groove (8) on the side facing the sealing connection assembly.

4. The device for protecting solar photovoltaic panel connectors according to claim 3, characterized in that, The fixing teeth (6) are flush with the inner side of the support beam (2).

5. The device for protecting solar photovoltaic panel connectors according to claim 3, characterized in that, The ear (11) is matched with the fixing tooth (6) and is secured to the upper part of the fixing tooth (6).

6. The device for protecting solar photovoltaic panel connectors according to claim 3, characterized in that, The safety cover (5) includes a top plate (51) and two side plates (52) on both sides of the top plate (51); the outer sides of the two side plates (52) are respectively provided with snap-fit ​​plates (53); the snap-fit ​​plates (53) are snapped into the splicing track groove (8); the lower end face of the top plate (51) abuts against the upper end face of the bolt (3).

7. The device for protecting solar photovoltaic panel connectors according to claim 1, characterized in that, The photovoltaic panel (20) is set between the track plates (7) of two adjacent support beams (2); the adjacent surfaces of the photovoltaic panel (20) and the support beams (2) and track plates (7) are covered with flexible material (9).