Supporting adhesive tape for photovoltaic frame

Abstract

The utility model discloses a support adhesive tape for a photovoltaic frame, the photovoltaic frame comprises a mounting cavity for mounting a photovoltaic laminated piece, the mounting cavity comprises a first wall, a second wall and a third wall which are sequentially bent and connected to form a C-shaped notch, and the inner wall of the first wall faces the surface of the photovoltaic laminated piece; the photovoltaic laminating piece is characterized in that the supporting adhesive tape is fixed on the inner wall of the first wall, and the supporting adhesive tape is used for supporting the surface of the photovoltaic laminating piece during gluing and limiting glue liquid from flowing to the surface of the photovoltaic laminating piece. According to the utility model, glue overflow on the surface of the photovoltaic laminated piece can be avoided.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic frame technology, and in particular to a support strip for photovoltaic frames. Background Technology

[0002] In the manufacturing process of photovoltaic modules, the photovoltaic laminate is typically fixed to the frame using an adhesive application process. This process is crucial for ensuring the structural stability and sealing performance of the module. However, existing adhesive application methods have the following problems:

[0003] 1. Excessive glue and insufficient uniformity: After one application of glue, due to improper control of glue amount or unreasonable structural design, some areas may have excessive glue overflow, while other areas may have insufficient glue. In addition, glue overflow on the surface of photovoltaic laminates will affect normal operation (the bottom surface of photovoltaic laminates is usually not affected).

[0004] 2. Lack of supporting structure: After the adhesive is applied, the panel may sink due to gravity, especially when the adhesive has not fully cured. This not only affects the uniformity of the adhesive layer thickness but may also cause additional stress on the top of the frame, reducing the long-term reliability of the component.

[0005] 3. Difficulty in controlling adhesive layer thickness: Existing technologies lack effective means to precisely control the thickness of the adhesive layer, which often results in the adhesive layer being too thin or too thick, thereby affecting the sealing effect and structural strength of the components.

[0006] 4. Bubble formation: Due to the high fluidity and lack of guidance of the colloid, bubbles are easily generated during the application process. The presence of these bubbles may weaken its adhesive performance and lead to unstable overall quality. Utility Model Content

[0007] The technical problem to be solved by this utility model is to provide a support strip for photovoltaic frames that can prevent adhesive overflow from appearing on the surface of photovoltaic laminates.

[0008] To address the aforementioned technical problems, this utility model discloses a support strip for a photovoltaic frame. The photovoltaic frame includes an installation cavity for mounting a photovoltaic laminate. The installation cavity includes a first wall, a second wall, and a third wall that are sequentially bent and connected to form a C-shaped groove. The inner wall of the first wall faces the surface of the photovoltaic laminate. The support strip is fixed to the inner wall of the first wall. The support strip is used to support the surface of the photovoltaic laminate and restrict the flow of adhesive to the surface of the photovoltaic laminate during adhesive application.

[0009] As an optional implementation, the supporting adhesive strip is an adhesive strip obtained by applying adhesive along the length direction on the inner wall of the first wall, or the supporting adhesive strip is an adhesive strip directly pasted along the length direction on the inner wall of the first wall.

[0010] As another optional implementation, the radial strain of the support strip is 20% to 60% when it is pressed down by the photovoltaic laminate.

[0011] As another optional implementation, the cross-section of the support strip is any one of a circle, a sector, a trapezoid, or a semicircle.

[0012] As another optional implementation, the amount of adhesive injected is designed such that the width of the adhesive overflow on the bottom surface of the photovoltaic laminate is 0-1 mm.

[0013] As another optional implementation, the surface of the support strip does not extend beyond the edge of the C-shaped groove.

[0014] As another optional implementation, the joint between the support strip and the first wall is designed to be sealed and fixed to prevent the adhesive from overflowing from the gap between the support strip and the first wall.

[0015] As another optional implementation, the surface of the support strip is provided with a microporous structure to allow a small amount of adhesive to penetrate in order to enhance the bonding effect and prevent adhesive overflow.

[0016] As another optional implementation, the sum of the height of the supporting adhesive strip and the height of the photovoltaic laminate is less than the height of the C-shaped groove.

[0017] As another optional implementation, the surface of the support strip is treated with an anti-slip coating.

[0018] Compared with the prior art, the embodiments of this utility model have the following beneficial effects:

[0019] In this embodiment of the invention, a support strip is pre-installed on the first wall of the mounting cavity. Since the first wall faces upward and the surface of the photovoltaic laminate faces downward, after the surface of the photovoltaic laminate is pressed onto the support strip, the adhesive flows from the bottom (or back) of the photovoltaic laminate to the surface below. The support strip supports the photovoltaic laminate while restricting the flow of adhesive out of the mounting cavity, thereby preventing adhesive overflow from the surface of the photovoltaic laminate. In addition, since the outlet of the adhesive at the bottom is sealed, the adhesive will only overflow from the top, i.e., the bottom surface of the photovoltaic laminate, without affecting the surface of the photovoltaic laminate. The adhesive itself has fluidity, and sealing the bottom outlet of the adhesive can promote the flow of the adhesive in the cavity, making the adhesive evenly distributed and continuously squeezing out air bubbles, reducing air bubbles in the final adhesive layer. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of a support strip for a photovoltaic frame disclosed in an embodiment of the present invention;

[0022] Figure 2 This is a disclosure of the embodiments of this utility model. Figure 1 A magnified view of part A in the diagram. Detailed Implementation

[0023] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] See Figures 1-2 This utility model discloses a support strip 1 for a photovoltaic frame. The photovoltaic frame 2 includes a mounting cavity 21 for mounting a photovoltaic laminate 3. The mounting cavity 21 includes a first wall 21, a second wall 22, and a third wall 23 that are bent and connected in sequence to form a C-shaped groove. The inner wall of the first wall 21 faces the surface of the photovoltaic laminate 3. The support strip 1 is fixed to the inner wall of the first wall 21. The support strip 1 is used to support the surface of the photovoltaic laminate 3 and restrict the flow of adhesive liquid 4 to the surface of the photovoltaic laminate 3 when applying adhesive.

[0025] In this embodiment of the invention, a support strip 1 is pre-installed on the first wall 21 of the mounting cavity 21. Since the first wall 21 faces upward and the surface of the photovoltaic laminate 3 faces downward, after the surface of the photovoltaic laminate 3 is pressed onto the support strip 1, the adhesive 4 flows from the bottom (or back) surface of the photovoltaic laminate 3 to the surface below. The support strip 1 supports the photovoltaic laminate 3 while restricting the flow of adhesive 4 out of the mounting cavity 21, thereby preventing adhesive overflow from the surface of the photovoltaic laminate 3. In addition, since the outlet of adhesive 4 at the bottom is sealed, adhesive 4 will only overflow from the top, i.e., the bottom surface of the photovoltaic laminate 3, without affecting the surface of the photovoltaic laminate 3. Adhesive 4 itself has fluidity; sealing the bottom outlet of adhesive 4 can promote the flow of adhesive 4 in the cavity, making the adhesive 4 evenly distributed and continuously squeezing out air bubbles, reducing air bubbles in the final adhesive layer. In this embodiment, adhesive overflow refers to some adhesive flowing out of the mounting cavity 21.

[0026] In an optional embodiment, the supporting adhesive strip 1 is an adhesive strip obtained by applying adhesive along the length direction to the inner wall of the first wall 21, or the supporting adhesive strip 1 is an adhesive strip directly pasted along the length direction to the inner wall of the first wall 21. In this embodiment, the supporting adhesive strip 1 is designed as an adhesive strip fixed along the length direction of the first wall 21, which can achieve a uniform and precise adhesive application effect. At the same time, by matching the adhesive thickness required for the surface of the photovoltaic laminate 3, the stability and sealing of the structure are ensured.

[0027] In another optional embodiment, the radial strain of the support strip 1 when pressed down by the photovoltaic laminate 3 is 20% to 60%, allowing it to slightly deform under pressure from the photovoltaic laminate 3 to adapt to different thickness requirements, ensuring the stability of the internal structure of the mounting cavity 21 and avoiding sealant failure due to deformation or displacement.

[0028] In another optional embodiment, the cross-section of the support strip is any one of a circle, a sector, a trapezoid, or a semicircle.

[0029] In yet another alternative embodiment, the diameter of the support strip 1 is designed to match the adhesive thickness required for the surface of the photovoltaic laminate 3.

[0030] In another optional embodiment, the amount of adhesive 4 injected is designed such that the width of the adhesive overflow on the bottom surface of the photovoltaic laminate 3 is 0-1 mm.

[0031] In yet another alternative embodiment, the surface of the support strip 1 does not extend beyond the edge of the C-shaped groove.

[0032] In another optional embodiment, the joint between the support strip 1 and the first wall 21 is designed to be sealed and fixed to prevent the adhesive 4 from overflowing from the gap between the support strip 1 and the first wall 21.

[0033] In another optional embodiment, the surface of the support strip 1 is provided with a microporous structure, which allows a small amount of adhesive 4 to penetrate to enhance the bonding effect, while avoiding the problem of adhesive overflow.

[0034] In another optional embodiment, the sum of the height of the support strip 1 and the height of the photovoltaic laminate 3 is less than the height of the C-shaped groove.

[0035] In another optional embodiment, the surface of the support strip 1 is treated with an anti-slip coating, allowing the photovoltaic laminate 3 to be stably placed on the support strip 1.

[0036] The contents disclosed in this utility model embodiment are merely preferred embodiments of this utility model and are only used to illustrate the technical solutions of this utility model, not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of this utility model.

Claims

1. A support strip for a photovoltaic frame, the photovoltaic frame including a mounting cavity for mounting a photovoltaic laminate, the mounting cavity including a first wall, a second wall, and a third wall sequentially bent and connected to form a C-shaped groove, wherein the inner wall of the first wall faces the surface of the photovoltaic laminate; characterized in that, The support strip is fixed to the inner wall of the first wall. The support strip is used to support the surface of the photovoltaic laminate and restrict the flow of adhesive to the surface of the photovoltaic laminate during adhesive application.

2. The photovoltaic frame support strip according to claim 1, characterized in that, The supporting adhesive strip is an adhesive strip obtained by applying adhesive along the length direction on the inner wall of the first wall, or the supporting adhesive strip is an adhesive strip directly pasted along the length direction on the inner wall of the first wall.

3. The photovoltaic frame support strip according to claim 1, characterized in that, The radial strain of the support strip is 20% to 60% when it is pressed down by the photovoltaic laminate.

4. The photovoltaic frame support strip according to claim 1, characterized in that, The cross-section of the supporting rubber strip can be any one of a circle, a fan shape, a trapezoid, or a semi-circle.

5. The photovoltaic frame support strip according to claim 1, characterized in that, The amount of adhesive injected is designed such that the width of the adhesive overflow on the bottom surface of the photovoltaic laminate is 0-1 mm.

6. The photovoltaic frame support strip according to claim 1, characterized in that, The surface of the support strip does not extend beyond the edge of the C-shaped groove.

7. The photovoltaic frame support strip according to claim 1, characterized in that, The joint between the support strip and the first wall is designed to be sealed and fixed to prevent the adhesive from overflowing from the gap between the support strip and the first wall.

8. The photovoltaic frame support strip according to claim 1, characterized in that, The surface of the support strip is provided with a microporous structure to allow a small amount of adhesive to penetrate in order to enhance the bonding effect and prevent adhesive overflow.

9. The photovoltaic frame support strip according to claim 1, characterized in that, The sum of the height of the supporting adhesive strip and the height of the photovoltaic laminate is less than the height of the C-shaped groove.

10. The photovoltaic frame support strip according to claim 1, characterized in that, The surface of the support strip is treated with an anti-slip coating.

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