Corner connector connecting structure for steel frame of photovoltaic module

Abstract

The utility model relates to the technical field of steel frame corner connector connecting structures, in particular to a photovoltaic module steel frame corner connector connecting structure which comprises a long frame and a short frame abutting against one end of the long frame, a connecting corner connector is installed between the long frame and the short frame, and the connecting corner connector comprises a first frame connecting end and a second frame connecting end. One end of the first frame connecting end is fixedly connected to one end of the second frame connecting end, the first frame connecting end and the second frame connecting end are arranged in a crossed mode, and each of the first frame connecting end and the second frame connecting end comprises a lower bottom edge and side edges oppositely arranged on the two sides of the lower bottom edge. The connecting corner connector and the corresponding long frame and short frame are tightly pressed and locked through the first flanging and the second flanging respectively, and are matched with the structural mode that the first protrusion and the limiting hole on the first flanging are clamped, and the second protrusion and the limiting hole are clamped. The connecting strength of the steel frame and the connecting corner connector is guaranteed, the structure is stable and reliable, size control is accurate, deformation is not prone to occurring, and the use performance of products is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of steel frame angle code connection structures, in particular to a steel frame angle code connection structure for a photovoltaic module. Background Art

[0002] At present, as a clean energy, photovoltaic power generation is highly regarded globally and has received strong support and development. As an indispensable core component of photovoltaic power generation, the important value of photovoltaic modules is self-evident. Currently, photovoltaic modules are divided into two categories: framed and frameless. Among them, framed photovoltaic modules are more recognized and widely adopted in the market because of their higher safety and reliability in applications. The current frames of photovoltaic modules are made of aluminum alloy extruded profiles. Four aluminum frames surround the glass plate of the photovoltaic module in a frame shape, and the four sides of the glass plate are embedded in the grooves of the aluminum frames and fixed with adhesives. With the development of photovoltaic module technology in recent years, the steel frame technology has gradually attracted the attention of the market. The steel frame technology is expected to bring improvements in the performance of future large-sized photovoltaic modules. However, due to the differences in the production processes of steel frames and aluminum frames, it is very difficult to have a simple and reliable angle code connection structure like that of aluminum frames. Content of the Utility Model

[0003] The technical problem to be solved by the utility model is: to solve the problem of low strength and reliability of the angle code connection structure of current steel frame photovoltaic modules, and a steel frame angle code connection structure for a photovoltaic module is provided.

[0004] The technical solution adopted by the present utility model to solve its technical problems is as follows: A steel frame corner code connection structure for a photovoltaic module, including a long frame and a short frame abutted against one end of the long frame. A connection corner code is installed between the long frame and the short frame. The connection corner code includes a first frame connection end and a second frame connection end. One end of the first frame connection end is fixedly connected to one end of the second frame connection end and they are arranged crosswise. Both the first frame connection end and the second frame connection end include a lower bottom edge and side edges oppositely arranged on both sides of the lower bottom edge. Limit holes are provided on the side edges of the two side edges close to the outer side of the long frame or the short frame. A first notch matching the first frame connection end is provided on the long frame, and the first frame connection end is arranged in the first notch. A second notch matching the second frame connection end is provided on the short frame, and the second frame connection end is arranged in the second notch. A first flanging is provided on one side of the long frame close to the first frame connection end, and the first flanging is folded to the side edge of the first frame connection end. A first protrusion matching the limit hole is provided on the first flanging, and the first protrusion is arranged in the limit hole. A second flanging is provided on one side of the short frame close to the second frame connection end, and the second flanging is folded to the side edge of the second frame connection end. A second protrusion matching the limit hole is provided on the second flanging, and the second protrusion is arranged in the limit hole. Compared with the prior art, the connection corner code and the corresponding long frame and short frame are respectively locked tightly by the first flanging and the second flanging, and are matched with the structure of clamping between the first protrusion on the first flanging and the limit hole, and between the second protrusion and the limit hole, ensuring the connection strength between the steel frame and the connection corner code, the stable and reliable structure, and the accurate size control without easy deformation, and can effectively guarantee the use performance of the product.

[0005] In order to ensure the stable and reliable connection between the connection corner code and the steel frame, in some preferred embodiments, clamping blocks are provided on the other side edges of both the first frame connection end and the second frame connection end, and clamping grooves matching the clamping blocks are provided on both the long frame and the short frame, and the clamping blocks are arranged in the corresponding clamping grooves. Through the cooperation of the clamping blocks on the other side of the connection corner code and the clamping grooves on the corresponding long frame or short frame, the stable and reliable connection between the connection corner code and the steel frame is ensured.

[0006] In order to ensure the connection strength between the clamping block and the connection corner code, in some preferred embodiments, the clamping block is integrally formed with the side edge, and the clamping block is formed by turning outwards from the side edge. The integral formation of the clamping block and the side edge ensures the connection strength between the clamping block and the connection corner code, and the outward turning formation of the clamping block is convenient for manufacturing.

[0007] Due to the cooperation between the clamping block and the clamping groove, it is necessary to horizontally open a clamping groove on the steel frame. The horizontal clamping groove is relatively difficult to process. In order to reduce the difficulty of grooving on the steel frame, in some preferred embodiments, positioning blocks are provided on the other sides of the first frame connection end and the second frame connection end, and there is a gap between the positioning block and the side edge. Positioning grooves matching the positioning blocks are opened on both the long frame and the short frame, and the positioning blocks are arranged in the positioning grooves. Through the cooperation between the positioning blocks on the connecting angle code and the positioning grooves on the steel frame, and the spaced arrangement between the positioning blocks and the side edges, grooves can be cut vertically along the axial direction of the steel frame, which is convenient for manufacturing and processing.

[0008] In order to ensure the connection strength between the positioning block and the connecting angle code, in some preferred embodiments, the positioning block and the side edge are fixedly connected to each other through a connecting block. The side edge, the positioning block, and the connecting block are integrally formed, and the connecting block and the positioning block are formed by folding outward from the side edge. The integral formation of the positioning block, the connecting block, and the side edge ensures the connection strength between the clamping block and the connecting angle code, and the outward folding formation on the clamping block is convenient for manufacturing.

[0009] In order to facilitate the processing of the positioning groove, in some preferred embodiments, the positioning block and the side edge are arranged parallel to each other. The positioning block is arranged parallel to the outside of the side edge, and the positioning groove can be directly opened along the axial direction, which is convenient for the processing of the positioning groove and improves the production efficiency.

[0010] In order to ensure the stable and reliable fixation between the connecting angle code and the steel frame, in some preferred embodiments, the distance of the positioning block along the length direction of the corresponding long frame or short frame is greater than the distance of the connecting block along the length direction of the corresponding long frame or short frame. By making the distance of the positioning block along the length direction of the corresponding long frame or short frame greater than the distance of the connecting block along the length direction of the corresponding long frame or short frame, the connection between the connecting angle code and the steel frame is restricted in all directions except along the axial direction of the steel frame, further ensuring the stable and reliable fixation between the connecting angle code and the steel frame.

[0011] In order to prevent the connecting block from shaking in the positioning groove, in some preferred embodiments, a limiting groove is provided between the connecting block and the positioning block. The limiting groove matches the limiting block formed by the wall thickness at the positioning groove on the corresponding long frame or short frame, and the limiting block is arranged in the corresponding limiting groove. By providing a limiting groove between the positioning block and the connecting block and matching the limiting groove with the limiting block formed by the wall thickness at the positioning groove on the long frame or short frame, the displacement between the connecting angle code and the steel frame is restricted.

[0012] In some preferred embodiments, the first frame connection end and the second frame connection end are integrally formed.

[0013] In some preferred embodiments, the first protrusion and the second protrusion are formed by stamping.

[0014] The beneficial effects of the present utility model are as follows: When the corner code connection structure of the steel frame of the photovoltaic module of the present utility model is in use, the connecting corner code and its corresponding long frame and short frame are respectively clamped and locked through the first flanging and the second flanging, and are clamped by the first protrusion and the limiting hole on the first flanging, as well as the second protrusion and the limiting hole, which ensures the connection strength between the steel frame and the connecting corner code, the structural stability and reliability, and the accurate dimension control without deformation. It can effectively guarantee the use performance of the product and avoid the problem of low strength and reliability of the corner code connection structure of the current steel frame photovoltaic module. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present utility model will be further described below with reference to the drawings and embodiments.

[0016] Figure 1 is the three-dimensional structure diagram of Embodiment 1 of the present utility model;

[0017] Figure 2 is the cross-sectional view of the short frame in Embodiment 1 of the present utility model;

[0018] Figure 3 is the three-dimensional structure diagram of the long frame in Embodiment 1 of the present utility model;

[0019] Figure 4 is the three-dimensional structure diagram of the connecting corner code in Embodiment 1 of the present utility model;

[0020] Figure 5 is the three-dimensional structure diagram of Embodiment 2 of the present utility model;

[0021] Figure 6 is the cross-sectional view of Embodiment 2 of the present utility model;

[0022] Figure 7 is the three-dimensional structure diagram of the connecting corner code in Embodiment 2 of the present utility model;

[0023] Figure 8 is the three-dimensional structure diagram of Embodiment 3 of the present utility model;

[0024] Figure 9 is the cross-sectional view of Embodiment 3 of the present utility model;

[0025] Figure 10 is the three-dimensional structure diagram of the connecting corner code in Embodiment 3 of the present utility model.

[0026] In the figure: 1. long border, 2. short border, 3. connecting corner code, 301. first border connecting end, 302. second border connecting end, 4. bottom edge, 5. side edge, 6. limiting hole, 7. first notch, 8. second notch, 9. first flanging, 10. second flanging, 11. first protrusion, 12. second protrusion, 13. clamping block, 14. clamping groove, 15. positioning block, 16. positioning groove, 17. connecting block, 18. limiting groove, 19. limiting block. Detailed implementation mode

[0027] The present utility model will be further described in detail below in conjunction with embodiments:

[0028] The present utility model is not limited to the following specific implementation modes. Those of ordinary skill in the art can implement the present utility model in other various specific implementation modes according to the content disclosed in the present utility model, or those that adopt the design structure and idea of the present utility model and make simple changes or modifications all fall within the protection scope of the present utility model. It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments can be combined with each other.

[0029] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. can explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise stated, the meaning of "a plurality" is two or more.

[0030] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood through specific situations.

[0031] Embodiment 1

[0032] AsFigure 1-4 As shown, a connecting structure for the corner code of the steel frame of a photovoltaic module includes a long frame 1 and a short frame 2. One end of the long frame 1 abuts against one end of the short frame 2, and a connecting corner code 3 is fixedly installed between the long frame 1 and the short frame 2;

[0033] Among them, the connecting corner code 3 includes a first frame connecting end 301 and a second frame connecting end 302. One end of the first frame connecting end 301 is fixedly connected to one end of the second frame connecting end 302 and they are arranged perpendicular to each other. Both the first frame connecting end 301 and the second frame connecting end 302 include a lower bottom edge 4. On both sides of the lower bottom edge 4, side edges 5 are arranged oppositely to form a C-shaped structure. On the side edge 5 close to the outer side of the long frame 1 or the short frame 2 among the two side edges 5, a limiting hole 6 is arranged. On the long frame 1, a first notch 7 matching the first frame connecting end 301 is arranged. The first frame connecting end 301 is embedded in the first notch 7. On the short frame 2, a second notch 8 matching the second frame connecting end 302 is arranged. The second frame connecting end 302 is embedded in the second notch 8. On one side of the long frame 1 near the first frame connecting end 301, a first flanging 9 is arranged. The first flanging 9 is folded to the side edge 5 on one side of the first frame connecting end 301 to wrap the side edge 5 on the long frame 1. On the first flanging 9, a first protrusion 11 matching the limiting hole 6 is arranged. The first protrusion 11 is arranged in the limiting hole 6. On one side of the short frame 2 near the second frame connecting end 302, a second flanging 10 is arranged. The second flanging 10 is folded to the side edge 5 on one side of the second frame connecting end 302 to wrap the side edge 5 on the short frame 2. On the second flanging 10, a second protrusion 12 matching the limiting hole 6 is arranged. The second protrusion 12 is arranged in the limiting hole 6. The first frame connecting end 301 and the second frame connecting end 302 are integrally formed, and the first protrusion 11 and the second protrusion 12 are formed by stamping.

[0034] Embodiment 2

[0035] The difference between Embodiment 2 and Embodiment 1 is that as Figure 5-7 shown, on the other side edge 5 of the first frame connecting end 301 and the second frame connecting end 302, a clamping block 13 is turned outwards. The clamping block 13 is parallel to the corresponding lower bottom edge 4. On both the long frame 1 and the short frame 2, a clamping groove 14 matching the clamping block 13 is opened. The clamping block 13 is arranged in the corresponding clamping groove 14. The clamping block 13 is integrally formed with the side edge 5. The clamping block 13 is formed by turning outwards to the side edge 5, and the clamping block 13 is perpendicular to the side edge 5.

[0036] Embodiment 3

[0037] The differences between Embodiment 3 and Embodiments 1 and 2 are that as Figure 8-10As shown in the figure, positioning blocks 15 are provided on the other side edges 5 of the first frame connection end 301 and the second frame connection end 302. There is a gap between the positioning block 15 and the side edge 5, and the gap between the positioning block 15 and the side edge 5 is larger than the wall thickness of the steel frame. Positioning grooves 16 matching the positioning blocks 15 are provided on both the long frame 1 and the short frame 2, and the positioning blocks 15 are arranged in the positioning grooves 16.

[0038] The positioning block 15 and the side edge 5 are fixedly connected to each other through a connecting block 17. The side edge 5, the positioning block 15 and the connecting block 17 are integrally formed. The connecting block 17 and the positioning block 15 are formed by turning outward to the side edge 5. The positioning block 15 and the side edge 5 are arranged parallel to each other. The distance of the positioning block 15 along the length direction of the corresponding long frame 1 or short frame 2 is greater than the distance of the connecting block 17 along the length direction of the corresponding long frame 1 or short frame 2. A limiting groove 18 is provided between the connecting block 17 and the positioning block 15, and the limiting groove 18 matches the limiting block 19 formed by the wall thickness at the positioning groove 16 on the corresponding long frame 1 or short frame 2. The limiting block 19 is arranged in the corresponding limiting groove 18.

[0039] When the above-mentioned corner code connection structure of the steel frame of the photovoltaic module is in use, the first frame connection end 301 is embedded in the first notch 7 of the long frame 1, and the second frame connection end 302 is embedded in the second notch 8 of the short frame 2. At the same time, the first flanging 9 of the long frame 1 wraps the side edge 5 of the first frame connection end 301 of the connecting corner code 3, and the second flanging 10 of the short frame 2 wraps the side edge 5 of the second frame connection end 302 of the connecting corner code 3. A first protrusion 11 is formed on the first flanging 9 by stamping and is matched with the limiting hole 6, and a second protrusion 12 is formed on the second flanging 10 and is matched with the limiting hole 6. The first flanging 9 and the second flanging 10 are respectively clamped on the corresponding side edges 5. The positioning blocks 15 on the other side surface are arranged in the positioning grooves 16, and the limiting blocks 19 are arranged in the limiting grooves 18, ensuring the connection strength between the steel frame and the connecting corner code 3, the structural stability and reliability, and the accurate size control and not easy to deform, effectively guaranteeing the use performance of the product and avoiding the problem of low strength and reliability of the current corner code connection structure of the steel frame photovoltaic module.

[0040] Based on the ideal embodiments of the present invention as inspiration, through the above description, relevant staff can completely make various changes and modifications without departing from the technical idea of this invention. The technical scope of this invention is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A photovoltaic module steel frame angle code connection structure, comprising a long frame (1) and a short frame (2) abutting against one end of the long frame (1), a connecting angle code (3) being installed between the long frame (1) and the short frame (2), characterized in that: The connecting angle code (3) comprises a first frame connecting end (301) and a second frame connecting end (302); one end of the first frame connecting end (301) is fixedly connected to one end of the second frame connecting end (302) and the two are arranged crosswise with each other; the first frame connecting end (301) and the second frame connecting end (302) both comprise a lower bottom edge (4) and side edges (5) arranged relatively on both sides of the lower bottom edge (4); a limiting hole (6) is arranged on the side edges (5) close to the outer side of the long frame (1) or the short frame (2); the long frame (1) is provided with a first notch (7) matching the first frame connecting end (301); the first frame connecting end (301) is arranged in the first notch (7); the short frame (2) is provided with a second notch matching the second frame connecting end (302). (8), the second frame connection end (302) is arranged in the second notch (8), a first flange (9) is arranged on one side of the long frame (1) near the first frame connection end (301), the first flange (9) is folded to the side (5) on the side of the first frame connection end (301), a first protrusion (11) matching the limiting hole (6) is arranged on the first flange (9), the first protrusion (11) is arranged in the limiting hole (6), a second flange (10) is arranged on one side of the short frame (2) near the second frame connection end (302), the second flange (10) is folded to the side (5) on the side of the second frame connection end (302), a second protrusion (12) matching the limiting hole (6) is arranged on the second flange (10), and the second protrusion (12) is arranged in the limiting hole (6).

2. A photovoltaic module steel frame angle code connection structure according to claim 1, characterized in that: A card block (13) is provided on the side edge (5) on the other side of the first frame connection end (301) and the second frame connection end (302), and a card slot (14) matching the card block (13) is provided on the long frame (1) and the short frame (2), and the card block (13) is arranged in the corresponding card slot (14).

3. A photovoltaic module steel frame angle code connection structure according to claim 2, characterized in that: The card block (13) and the side edge (5) are integrally formed, and the card block (13) is formed by being folded outwardly toward the side edge (5).

4. A photovoltaic module steel frame angle code connection structure according to claim 1, characterized in that: A positioning block (15) is provided on the side edge (5) on the other side of the first frame connecting end (301) and the second frame connecting end (302), a gap is provided between the positioning block (15) and the side edge (5), and a positioning groove (16) matching the positioning block (15) is provided on the long frame (1) and the short frame (2), and the positioning block (15) is arranged in the positioning groove (16).

5. A photovoltaic module steel frame angle code connection structure according to claim 4, characterized in that: The positioning block (15) and the side edge (5) are fixedly connected to each other via a connecting block (17); the side edge (5), the positioning block (15) and the connecting block (17) are integrally formed; and the connecting block (17) and the positioning block (15) are formed by being folded outwardly toward the side edge (5).

6. A photovoltaic module steel frame angle code connection structure according to claim 5, characterized in that: The positioning block (15) and the side edge (5) are arranged parallel to each other.

7. A photovoltaic module steel frame angle code connection structure according to claim 6, characterized in that: The distance of the positioning block (15) along the length direction of the corresponding long frame (1) or short frame (2) is greater than the distance of the connecting block (17) along the length direction of the corresponding long frame (1) or short frame (2).

8. A photovoltaic module steel frame angle code connection structure according to claim 7, characterized in that: A limiting groove (18) is arranged between the connecting block (17) and the positioning block (15); the limiting groove (18) matches a limiting block (19) formed by the wall thickness of the positioning groove (16) on the corresponding long frame (1) or short frame (2); and the limiting block (19) is arranged in the corresponding limiting groove (18).

9. The photovoltaic module steel frame angle code connection structure according to claim 1, characterized in that: The first frame connecting end (301) and the second frame connecting end (302) are integrally formed.

10. The photovoltaic module steel frame angle bracket connection structure according to claim 1, characterized in that: The first protrusion (11) and the second protrusion (12) are formed by stamping.

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