Photovoltaic module laminate frame

Abstract

This invention provides a photovoltaic module lamination frame, comprising a rectangular frame with integrally formed protrusions at each of the four corners. The protrusions extend along the length, width, and thickness of the frame. The protrusions increase the width at both ends of each side of the frame, thereby reducing the gaps between the lamination frames. Furthermore, the protrusions add weight to the frame, preventing positional shifts during transport. Moreover, by widening and thickening the frame only at the four corners, material usage is reduced while ensuring the lamination frames do not shift, thus lowering costs compared to traditional lamination frames that are widened and thickened overall.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic module technology, specifically a photovoltaic module laminate frame. Background Technology

[0002] In the production of solar cell modules, the lamination process is one of the key steps in the encapsulation process, and its quality directly affects the reliability and lifespan of the module. In traditional lamination processes, a lamination frame, slightly larger than the module panel, is manually placed on the outside of the module before it enters the laminator, and is manually removed after lamination. However, existing technologies have the following problems: 1. Traditional lamination frames are typically made of lightweight aluminum alloy, with a thickness of 6mm and a width of 2cm. Since the required spacing between component panels is 6-7cm, there is a 2-3cm gap between the lamination frames. Moreover, the lamination frames are relatively light, making them prone to shifting during transportation, affecting the positioning accuracy of the component panels, and thus reducing the lamination quality.

[0003] 2. During the lamination process, the presence of the lamination frame may lead to uneven pressure distribution in the edge areas, preventing the encapsulation material (such as EVA) from flowing sufficiently. Residual air expands at high temperatures, forming bubbles. In addition, differences in shrinkage in the edge areas during cooling may create tiny cavities, further forming visible bubble marks, affecting the appearance and performance of the component.

[0004] 3. The thin-edge design of traditional laminated frames reduces the structural support strength of the modules, making them prone to microcracks in the cells or glass breakage under subsequent transportation, installation, or external loads (such as wind and snow pressure). At the same time, stress concentration in the edge area will exacerbate crack propagation and increase the risk of delamination due to the reduced bonding area of ​​the encapsulation material, further inducing cell cracking problems.

[0005] To address these issues, existing technologies typically employ overall thickening and widening of the laminate frame to enhance structural stability and pressure uniformity. However, this approach significantly increases material costs and reduces production economics. Therefore, there is an urgent need for a novel laminate frame structure or process that can optimize lamination quality while also being cost-effective, thereby improving the production efficiency and reliability of solar cell modules. Utility Model Content

[0006] To address the technical problems in the background art, this utility model discloses a photovoltaic module lamination frame.

[0007] This utility model provides a photovoltaic module laminate frame, including a rectangular frame body, with integrally formed protrusions at all four corners of the frame body; The bump extends along the length, width, and thickness of the frame.

[0008] Furthermore, when the protrusion extends along the length and width of the frame, its extension direction points outward from the frame.

[0009] Furthermore, when the bump extends in the thickness direction of the frame, it only protrudes to one side of the frame.

[0010] Furthermore, the bumps form an L-shape with two sides of equal length.

[0011] Furthermore, the inner surface of the protrusion is flush with the inner surface of the frame.

[0012] Furthermore, the outer surface of the bump is parallel to the frame, and the corners of the bump form right angles.

[0013] Furthermore, the length of the protrusion extending in the length and width directions of the frame is 1 ± 0.2 cm.

[0014] Furthermore, the thickness of the protrusion extending in the thickness direction of the frame is 1.5±0.2mm.

[0015] The beneficial effects of this utility model are: 1. The protrusions increase the width at both ends of each side of the frame, thereby reducing the gaps between the laminating frames. Furthermore, the protrusions add weight to the frame, preventing positional shifts during transport. Moreover, the frame is only widened and thickened at the four corners, reducing material usage while ensuring the laminating frames remain in place. This lowers costs compared to traditional methods that widen and thicken the entire laminating frame.

[0016] 2. The three-dimensional extension design of the bumps (length, width, and thickness directions) optimizes the pressure transmission of the laminator to the edge area, reduces pressure unevenness, promotes the full flow of encapsulation materials such as EVA, and reduces the risk of bubble residue.

[0017] 3. By enhancing edge structure support, the shrinkage difference during the cooling process is mitigated, the formation of cavities and visible bubble marks is avoided, and the appearance consistency and photoelectric performance of the components are improved.

[0018] 4. The extension of the bumps in the thickness direction significantly improves the overall rigidity of the laminate frame, providing stronger bending and compressive support for the edge of the component, and reducing the risk of microcracks or glass breakage caused by transportation or external loads (such as wind pressure and snow load). Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 yes Figure 1 Enlarged view of point A in the middle; Figure 3 This is the front view of this utility model; Figure 4 This is a left view of the present invention; Figure 5 yes Figure 4 Enlarged view of point B in the middle; In the diagram: 1. Frame; 2. Protrusion. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0022] like Figure 1 As shown, this utility model discloses a photovoltaic module laminate frame, including a frame body 1. The frame body 1 is a rectangular frame formed by four frame strips of equal width and thickness connected end to end.

[0023] The four corners of the frame 1 and the connection points of adjacent frame strips are all provided with integrally formed L-shaped protrusions 2, which form right angles at the corners; the protrusions 2 extend in the length, width and thickness directions of the frame 1.

[0024] Among them, such as Figure 2 and Figure 3 As shown, when the protrusion 2 extends along the length and width of the frame 1, its extension direction points outward from the frame 1; moreover, the inner surface of the protrusion 2 is flush with the inner surface of the frame 1. This configuration maximizes the contact area between the protrusion 2 and the frame 1, resulting in higher strength for the frame 1; fewer structural features are present at the four corners of the frame 1, reducing processing difficulty and cost; and the inner cavity of the frame 1 remains unchanged, without affecting the overall shape of the laminated structure. In this embodiment, the length of the protrusion 2 extending along the length and width of the frame 1 is 1 ± 0.2 cm.

[0025] Among them, such as Figure 4 and Figure 5 As shown, when protrusion 2 extends towards the thickness direction of frame 1, it only protrudes towards one side of frame 1. The advantages of this design are: 1. The other side of frame 1 is in contact with the photovoltaic module, resulting in a large contact area and reducing the risk of glass breakage; 2. The single-sided protrusion forms an asymmetrical reinforcing rib, specifically improving the local bending stiffness of the laminated frame edge without significantly increasing material costs. This design effectively disperses stress concentration under external loads (such as wind pressure and snow load), reducing the risk of microcracks in the solar cells or glass breakage. Simultaneously, the integral molding design of protrusion 2 and frame 1 avoids the adhesive interface, further reducing the risk of delamination. In this embodiment, the thickness of protrusion 2 extending towards the thickness direction of frame 1 is 1.5 ± 0.2 mm.

[0026] Compared to existing technologies, the advantages of this embodiment are: 1. The protrusion 2 increases the width at both ends of each side of the frame 1, thereby reducing the gap between the laminating frames; moreover, the protrusion 2 adds weight to the frame 1, preventing positional shifts during laminating frame transport. Furthermore, the frame 1 is only widened and thickened at the four corners, reducing material usage while ensuring no positional shifts in the laminating frames, thus lowering costs compared to the traditional overall widening and thickening of the laminating frames. 2. The three-dimensional extension design of the protrusion 2 (length, width, and thickness directions) optimizes the pressure transmission of the laminator to the edge areas, reducing pressure unevenness, promoting full flow of encapsulation materials such as EVA, and reducing the risk of bubble residue. 3. By enhancing edge structure support, it alleviates shrinkage differences during cooling, avoids the formation of cavities and visible bubble marks, and improves component appearance consistency and photoelectric performance. 4. The extension of bump 2 in the thickness direction significantly improves the overall rigidity of the laminate frame, providing stronger bending and compressive support for the edge of the component, and reducing the risk of microcracks or glass breakage caused by transportation or external loads (such as wind pressure and snow load).

[0027] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A photovoltaic module laminate frame, comprising a rectangular frame (1), characterized in that: The frame (1) is provided with integrally formed protrusions (2) at all four corners; The protrusion (2) extends in the length, width and thickness directions of the frame (1) to reduce the blank gap between the laminate frames.

2. The photovoltaic module laminate frame according to claim 1, characterized in that: When the protrusion (2) extends in the length and width directions of the frame (1), its extension direction points to the outside of the frame (1).

3. The photovoltaic module laminate frame according to claim 2, characterized in that: When the protrusion (2) extends in the thickness direction of the frame (1), it protrudes only to one side of the frame (1).

4. The photovoltaic module laminate frame according to claim 3, characterized in that: The protrusion (2) forms an L-shape with two sides of equal length.

5. The photovoltaic module laminate frame according to claim 4, characterized in that: The inner side of the protrusion (2) is flush with the inner side of the frame (1).

6. The photovoltaic module laminate frame according to claim 4, characterized in that: The outer side of the protrusion (2) is parallel to the frame (1), and the corner of the protrusion (2) forms a right angle.

7. The photovoltaic module laminate frame according to claim 1, characterized in that: The length of the protrusion (2) extending in the length and width directions of the frame (1) is 1 ± 0.2 cm.

8. The photovoltaic module laminate frame according to claim 7, characterized in that: The thickness of the protrusion (2) extending in the thickness direction of the frame (1) is 1.5±0.2mm.

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