3-shaped photovoltaic steel border

Abstract

The utility model relates to the technical field of frame for photovoltaic module, concretely is a kind of 3 photovoltaic steel frame, including photovoltaic frame and angle code, photovoltaic frame is made by cold bending forming processing, its sectional shape shape overall presents "3" character, photovoltaic frame and angle code are used in cooperation, for the installation and fixing of photovoltaic module, photovoltaic frame includes A surface, upper B surface, upper support surface, lower support surface, lower B surface, C surface, glue blocking part and reinforcing part, A surface, upper B surface and upper support surface form overflow glue groove, for installing photovoltaic laminated part, lower support surface, lower B surface and C surface and the reinforcing part of C surface tail portion form installation cavity, the utility model is provided with reinforcing part not only effectively increase the strength of frame C surface mounting hole edge, also maximum limit reduces the width of C surface, lower support surface sets end portion slot, and cooperate with the upper convex hull of angle code, can greatly reduce angle code deformation problem, and increase horizontal limit during longitudinal advancing.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic module frame technology, and in particular to a 3-shaped photovoltaic steel frame. Background Technology

[0002] As the photovoltaic industry promotes cost reduction and efficiency improvement, galvanized aluminum-magnesium steel frames are increasingly widely used in the market due to their low cost and high strength. In existing technologies, the profile cross-sections of steel frames are mainly divided into two types: open profiles and closed profiles. Open profiles are further divided into "S"-shaped profiles (with the mounting cavity opening outwards) and "3"-shaped profiles (with the mounting cavity opening inwards). In traditional technology, the tail of the C-side of the "3"-shaped steel frame only bends upwards by 90-180°, but this bend is relatively weak at the mounting holes on the C-side of the frame, making the photovoltaic modules prone to tearing under strong winds.

[0003] The traditional "3"-shaped steel frame, with its C-side bent inward at 90-180°, increases the width of the C-side to some extent, sacrificing the bifaciality of the photovoltaic module. In traditional technology, the ends of the "3"-shaped steel frame are fixed using protrusions or punches that mate with corresponding punches or protrusions on the corner brackets, or using serrations that engage with the profile bending grooves. The protrusions and punches on the lower support surface of the "3"-shaped steel frame cause significant deformation when the corner brackets are installed. Furthermore, during longitudinal advancement, the lack of lateral positioning results in a low success rate for aligning the protrusions with the holes. Using serrations and profile bending grooves for fixation greatly increases the difficulty of corner bracket installation and the amount of steel used in the profile. Utility Model Content

[0004] The purpose of this invention is to provide a 3-shaped photovoltaic steel frame to solve the problems mentioned in the background art.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a 3-shaped photovoltaic steel frame, including a photovoltaic frame and corner brackets. The photovoltaic frame is made by cold bending and forming, and its profile cross-section is generally in the shape of a "3". The photovoltaic frame and corner brackets are used together to install and fix the photovoltaic module. The photovoltaic frame includes an A-side, an upper B-side, an upper support surface, a lower support surface, a lower B-side, a C-side, an adhesive-blocking part, and a reinforcing part. The A-side, the upper B-side, and the upper support surface form an adhesive overflow groove for installing photovoltaic laminates. The lower support surface, lower B surface, C surface, and the reinforcing part at the tail of the C surface form an installation cavity for inserting corner brackets and accommodating fasteners for fixing photovoltaic modules. The C surface has an installation hole in the middle.

[0006] Preferably, the end of surface A is bent inward by 180° to form a sealant portion, the sealant portion being 2-6mm wide, to prevent the silicone in the overflow groove from overflowing onto the front of the laminate when installing the laminate.

[0007] Preferably, the lower support surface is formed by bending the upper support surface by 180° to reduce the thickness of the photovoltaic frame.

[0008] Preferably, the upper B surface and the lower B surface are coplanar, and the A surface, the upper support surface, the lower support surface, and the C surface are parallel, which facilitates the positioning and insertion of the corner code.

[0009] Preferably, the end of the photovoltaic frame is provided with an end slot at the lower support surface, the width of the end slot is 1-5mm and the length is 2-20mm.

[0010] Preferably, the end slot is an open type, that is, the end slot starts from the cut surface of the photovoltaic frame and extends inward.

[0011] Preferably, the corner bracket has an upper convex bulge and a lower convex bulge on both sides. When the corner bracket is inserted into the mounting cavity, the upper convex bulge of the corner bracket cooperates with the end slot of the photovoltaic frame to restrict the corner bracket from flipping in the mounting cavity. The mounting hole and the lower convex bulge cooperate to position and fix the corner bracket.

[0012] Preferably, the reinforcing part is formed by bending the tail of the C-side towards the inner side of the mounting cavity by 90° and then bending it by at least 180°. The overall height of the reinforcing part is 3-6mm, which is used to increase the strength of the edge of the mounting hole at the C-side.

[0013] The beneficial effects of this utility model are as follows: the reinforcing part of this utility model is bent upward by 90° and then bent inward by at least 180°, which not only effectively increases the strength of the edge of the mounting hole on the C side of the frame, but also minimizes the width of the C side, effectively improving the bifaciality of the photovoltaic module. By setting an end slot on the lower support surface of the frame end, which cooperates with the upper convex bulge of the corner code, the deformation problem of the corner code can be greatly reduced. In addition, a lateral limit is added during the longitudinal advancement process, which greatly reduces the problem of low success rate of convex bulge to hole in traditional technology, reduces the process difficulty, and does not increase the amount of steel used. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the photovoltaic frame and corner code structure provided by this utility model.

[0015] Figure 2 This is a schematic diagram of the three-dimensional structure of the photovoltaic frame provided by this utility model.

[0016] Figure 3 This is a schematic diagram of the connection between the end of the photovoltaic frame and the corner bracket provided by this utility model.

[0017] Figure 4 This is a side view of the photovoltaic frame provided by this utility model.

[0018] In the diagram: 1. Photovoltaic frame, 101A side, 102. Upper B side, 103. Lower B side, 104. C side, 105. Upper support surface, 106. Lower support surface, 107. End slot, 108. Adhesive blocking part, 109. Reinforcing part, 110. Excess adhesive groove, 111. Mounting cavity, 2. Corner bracket. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0020] See Figures 1-4 The present invention provides a 3-shaped photovoltaic steel frame, comprising a photovoltaic frame 1 and corner brackets 2. The photovoltaic frame 1 is made by cold bending and forming, and its profile cross-section is generally in the shape of a "3". The photovoltaic frame 1 and corner brackets 2 are used together to install and fix the photovoltaic module. It provides a stable and reliable installation and fixing method for the photovoltaic module, which can well adapt to the installation requirements of the photovoltaic module and improve the stability and reliability of the installation.

[0021] The photovoltaic frame 1 includes an A-side 101, an upper B-side 102, an upper support surface 105, a lower support surface 106, a lower B-side 103, a C-side 104, an adhesive-blocking part 108, and a reinforcing part 109. The A-side 101, the upper B-side 102, and the upper support surface 105 form an adhesive overflow groove 110 for installing photovoltaic laminates. The photovoltaic laminate is a core component of the photovoltaic module. Through lamination, multiple layers of materials are tightly bonded to form an overall structure with power generation, protection, and weather resistance functions. It is an existing mature technology structure, and its structure is not specifically shown here without affecting the completeness of this solution.

[0022] The lower support surface 106, lower B surface 103, C surface 104, and the reinforcing part 109 at the tail of C surface 104 form a mounting cavity 111 for inserting corner brackets 2 and accommodating fasteners for fixing photovoltaic modules. A mounting hole is provided in the center of C surface 104. The functional partitioning of the adhesive overflow groove 110 and the mounting cavity 111 is as follows: the adhesive overflow groove 110 is specifically used for installing photovoltaic laminates, effectively accommodating silicone during installation to ensure sealing and adhesion between the laminate and the photovoltaic frame 1; the mounting cavity 111 facilitates the assembly and fixing of photovoltaic modules, improving installation efficiency.

[0023] The end of side A 101 is bent inward by 180° to form a sealant-blocking part 108. The sealant-blocking part 108 is 2-6mm wide and is used to prevent silicone from overflowing from the overflow groove 110 onto the front of the laminate during installation. This not only ensures the neat and beautiful appearance of the photovoltaic module, but also reduces the amount of subsequent silicone cleaning work.

[0024] The lower support surface 106 is formed by bending the upper support surface 105 by 180° to reduce the thickness of the photovoltaic frame 1. The upper B surface 102 and the lower B surface 103 are coplanar, and the A surface 101, the upper support surface 105, the lower support surface 106, and the C surface 104 are parallel. This allows the corner bracket 2 to be positioned more accurately and smoothly during the insertion process, and also ensures that the outer side wall of the corner bracket 2 abuts against the inner side wall of the mounting cavity 111 after insertion, ensuring uniform force distribution.

[0025] An end slot 107 is provided at the end of the photovoltaic frame 1 at the lower support surface 106. The end slot 107 has a width of 1-5mm and a length of 2-20mm. The end slot 107 is open, meaning it starts from the cut surface of the photovoltaic frame 1 and extends inward. An upper convex bulge and a lower convex bulge are provided on both sides of the corner bracket 2. When the corner bracket 2 is inserted into the mounting cavity 111, the upper convex bulge of the corner bracket 2 cooperates with the end slot 107 of the photovoltaic frame 1 to restrict the corner bracket 2 from rotating within the mounting cavity 111. The mounting hole and the lower convex bulge cooperate. The cooperation between the end slot 107 and the upper convex bulge of the corner bracket 2 significantly reduces the deformation problem of the corner bracket 2 and adds lateral restraint during the longitudinal advancement of the corner bracket 2 within the mounting cavity 111. This greatly reduces the low success rate of convex bulge-to-hole alignment in traditional technologies, reduces process difficulty, and does not increase steel consumption.

[0026] The reinforcing part 109 is formed by bending the tail of the C-side 104 inward at 90° towards the inside of the mounting cavity 111, and then bending it again at least 180°. The overall height of the reinforcing part 109 is 3-6mm, which is used to increase the strength of the edge of the mounting hole at the C-side 104. It also minimizes the width of the C-side, effectively improving the bifaciality of the photovoltaic module.

[0027] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A three-dimensional photovoltaic steel frame, comprising a photovoltaic frame (1) and corner brackets (2), characterized in that: The photovoltaic frame (1) is made by cold bending and forming. Its profile cross-section is in the shape of a "3". The photovoltaic frame (1) and the corner bracket (2) are used together to install and fix the photovoltaic module. The photovoltaic frame (1) includes an A-side (101), an upper B-side (102), an upper support surface (105), a lower support surface (106), a lower B-side (103), a C-side (104), a glue-blocking part (108), and a reinforcing part (109). The A-side (101), the upper B-side (102), and the upper support surface (105) form an overflow groove (110) for installing photovoltaic laminates. The lower support surface (106), the lower B surface (103), the C surface (104), and the reinforcing part (109) at the tail of the C surface (104) form an installation cavity (111) for inserting corner brackets (2) and accommodating fasteners for fixing photovoltaic modules. The C surface (104) has an installation hole in the middle.

2. The 3-shaped photovoltaic steel frame according to claim 1, characterized in that: The end of surface A (101) is bent inward by 180° to form a sealant (108). The sealant (108) is 2-6mm wide and is used to prevent the silicone in the overflow groove (110) from overflowing onto the front of the laminate when the laminate is installed.

3. The 3-shaped photovoltaic steel frame according to claim 1, characterized in that: The lower support surface (106) is formed by bending the upper support surface (105) by 180° to reduce the thickness of the photovoltaic frame (1).

4. The 3-shaped photovoltaic steel frame according to claim 1, characterized in that: The upper B surface (102) and the lower B surface (103) are coplanar, and the A surface (101), the upper support surface (105), the lower support surface (106) and the C surface (104) are parallel, which facilitates the positioning and insertion of the corner bracket (2).

5. A 3-shaped photovoltaic steel frame according to claim 1, characterized in that: The end of the photovoltaic frame (1) is provided with an end slot (107) at the lower support surface (106). The width of the end slot (107) is 1-5mm and the length is 2-20mm.

6. A 3-shaped photovoltaic steel frame according to claim 5, characterized in that: The end slot (107) is an open type, that is, the end slot (107) starts from the cut surface of the photovoltaic frame (1) and extends inward.

7. A 3-shaped photovoltaic steel frame according to claim 1, characterized in that: The corner bracket (2) has an upper convex bulge and a lower convex bulge on both sides. When the corner bracket (2) is inserted into the mounting cavity (111), the upper convex bulge of the corner bracket (2) cooperates with the end slot (107) of the photovoltaic frame (1) to restrict the corner bracket (2) from flipping in the mounting cavity (111). The mounting hole and the lower convex bulge cooperate to position and fix the corner bracket (2).

8. A 3-shaped photovoltaic steel frame according to claim 1, characterized in that: The reinforcing part (109) is formed by bending the tail of the C-surface (104) towards the inside of the mounting cavity (111) by 90° and then bending it by at least 180°. The overall height of the reinforcing part (109) is 3-6mm, which is used to increase the strength of the edge of the mounting hole at the C-surface (104).

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