Film-coated adhesive tape for covering grid line of photovoltaic module

Abstract

The utility model belongs to the technical field of battery pieces, and particularly relates to a film-coated adhesive tape for covering grid lines of a photovoltaic module. The film-coated adhesive tape for covering the grid lines of the photovoltaic module is adhered to a battery piece, a plurality of metal grid lines are arranged on the battery piece at intervals, and the film-coated adhesive tape comprises a carrier layer, a main body layer and release paper, the carrier layer is a transparent PET film; the main body layer is arranged on the carrier layer, can be adhered to the outer surface of a battery piece, and comprises a plurality of black PET adhesive tape strips which are arranged at intervals along the width direction of the carrier layer, and the plurality of black PET adhesive tape strips are in one-to-one correspondence with a plurality of metal grid lines of the battery piece, so that the metal grid lines can be quickly adhered; and the release paper covers the adhesive surface of the black PET adhesive tape strip. The carrier layer and the main body layer are aligned and attached to the outer surface of the battery piece, so that the multiple black PET adhesive tape strips are firmly attached to the opposite metal grid lines, then the carrier layer is stripped, only the black PET adhesive tape strips are reserved on the outer surface of the battery piece, the metal grid lines are covered, synchronous attachment of the multiple adhesive tapes is achieved, and the attachment efficiency of operators is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of solar cells, and particularly relates to a coated tape for covering the grid lines of a photovoltaic module. Background Art

[0002] Mainstream solar cells in the market, such as PERC, HJT, TOPCON, etc., have a varying number of main grid lines on their surfaces, which appear bright silver in appearance. Since the surface color of the solar cell is mainly dark blue, there is an obvious color difference between the two, which appears rather abrupt. In some specific application scenarios where there are special requirements for the appearance of the product, it is necessary to cover the silver main grid lines to meet the appearance requirements. In the prior art, thin strip tapes are pasted one by one on the corresponding solar cells for shielding, resulting in low operation efficiency and easy misalignment. Content of the Utility Model

[0003] The purpose of the utility model is to overcome the shortcomings of the prior art and provide an efficient coated tape for covering the grid lines of a photovoltaic module.

[0004] The utility model adopts the following technical solutions:

[0005] A coated tape for covering the grid lines of a photovoltaic module, which is pasted on a solar cell. The solar cell is provided with a plurality of metal grid lines spaced along its width direction. The coated tape includes a carrier layer, a main body layer and a release paper; the carrier layer is a transparent PET film; the main body layer is arranged on the carrier layer and can be pasted on the outer surface of the solar cell. The main body layer includes a plurality of black PET tape strips spaced along the width direction of the carrier layer. The plurality of black PET tape strips correspond one by one to the plurality of metal grid lines of the solar cell to achieve quick fitting with the metal grid lines; the release paper covers the adhesive surfaces of the black PET tape strips.

[0006] Further, the carrier layer includes a PET film body and an adhesive layer arranged on the PET film body. The non - adhesive surfaces of the plurality of black PET tape strips are bonded to the adhesive layer.

[0007] Further, the width of the carrier layer is the same as the width of the solar cell, and the distance between two adjacent black PET tape strips is the same as the distance between two adjacent metal grid lines on the solar cell.

[0008] Further, the width of the black PET tape strip is the same as the width of the corresponding metal grid line, and the length of the black PET tape strip is the same as the length of the corresponding metal grid line.

[0009] Further, the thickness of the carrier layer is 0.05 - 0.1 mm.

[0010] Further, the width of the black PET tape strip is 1 - 3 mm.

[0011] Further, the thickness of the black PET tape strip is 0.06 mm.

[0012] Further, the thickness of the release paper is 0.01 - 0.06 mm.

[0013] As can be seen from the above description of the present utility model, compared with the prior art, the beneficial effects of the present utility model are as follows: By defining the structure of the laminated tape, during use, first uncover the release paper to expose the adhesive surface of the black PET glue strip, align the carrier layer and the main body layer and attach them to the outer surface of the battery cell, so that a plurality of black PET tape strips are firmly adhered to the opposite metal grid lines, and then peel off the carrier layer, leaving only the black PET tape strips on the outer surface of the battery cell to cover the metal grid lines, realizing synchronous attachment of multiple tapes and improving the attachment efficiency of operators;

[0014] By providing a carrier layer with the same width as the battery cell, during the attachment process, relying on the coincidence of both sides of the carrier layer with both sides of the battery cell to achieve the positioning function, enabling the carrier layer and the main body layer to be aligned and attached to the outer surface of the battery cell; among them, through the adhesive layer provided on the PET film body, the black PET tape strips can be positioned and preliminarily fixed, ensuring that the positions of a plurality of black PET tape strips are accurate without displacement or delamination. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural view of the laminated tape Figure 1 .

[0016] Figure 2 is a schematic structural view of the laminated tape Figure 2 .

[0017] Figure 3 is a schematic structural view of the battery cell.

[0018] Figure 4 is a schematic view of the laminated tape attached to the battery cell.

[0019] In the figure: 1 - carrier layer, 11 - PET film body, 12 - adhesive layer, 2 - main body layer, 21 - black PET tape strip, 3 - release paper, 4 - battery cell, 41 - metal grid line. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The following further describes the present utility model through specific embodiments.

[0021] As Figures 1 to 4 shown, this embodiment provides a laminated tape for covering the grid lines of a photovoltaic module, which is attached to the battery cell 4. A plurality of metal grid lines 41 are arranged at intervals along the width direction of the battery cell 4, and it includes a carrier layer 1, a main body layer 2, and a release paper 3.

[0022] The carrier layer 1 is a transparent PET film, including a PET film body 11 and an adhesive layer 12 provided on the PET film body 11; specifically, the width of the carrier layer 1 is the same as the width of the battery cell 4. During the pasting process, the two sides of the carrier layer 1 coincide with the two sides of the battery cell 4 to achieve the positioning function, so that the carrier layer 1 and the main body layer 2 can be accurately aligned and attached to the outer surface of the battery cell 4; further, the thickness of the carrier layer 1 is 0.05 - 0.1 mm.

[0023] The main body layer 2 is provided on the carrier layer 1 and can be pasted on the outer surface of the battery cell 4. It includes a plurality of black PET tape strips 21 arranged at intervals along the width direction of the carrier layer 1. The plurality of black PET tape strips 21 correspond one by one to the multiple metal grid lines of the battery 4 piece. The plurality of black PET tape strips 21 can be simultaneously attached to the multiple metal grid lines 41 to achieve rapid attachment to the metal grid lines 41, cover the metal grid lines 41, and improve the pasting efficiency of the operator; specifically, the non-adhesive surfaces of the plurality of black PET tape strips 21 are bonded to the adhesive layer 12, and the plurality of black PET tape strips 21 can be initially fixed on the adhesive layer 12, so that the positions of the plurality of black PET tape strips 21 are accurate without displacement or delamination. Moreover, the adhesive layer 12 is prepared with an adhesive having a relatively low viscosity, so that when the carrier layer 1 is peeled off, the adhesive layer 12 will not adhere to the non-adhesive surface of the black PET tape strip 21 and affect the use of the black PET tape strip 21; among them, the distance between two adjacent black PET tape strips 21 is the same as the distance between two adjacent metal grid lines 41 on the battery cell 4; further, the width of the black PET tape strip 21 is the same as the width of the relative metal grid line 41, and the length of the black PET tape strip 21 is the same as the length of the relative metal grid line 41; further, the width of the black PET tape strip 21 is 1 - 3 mm; further, the thickness of the black PET tape strip 21 is 0.06 mm.

[0024] The release paper 3 covers the adhesive surfaces of the black PET tape strips 21; specifically, the thickness of the release paper 3 is 0.01 - 0.06 mm.

[0025] When the coated tape of the present application is used, first fix the battery cell 4 that needs to cover the metal grid lines 41 on the workbench, remove the release paper 3 on the coated tape, and achieve positioning by making the two sides of the carrier layer 1 coincide with the two sides of the battery cell 4. After alignment, attach it to the outer surface of the battery cell 4; then use a soft roller to gently press the carrier layer 1, the main body layer 2 and the battery cell 4, so that the multiple black PET tape strips 21 of the main body layer 2 are firmly bonded to the multiple metal grid lines 41 on the outer surface of the battery cell 4; finally, tear off the carrier layer 1, and only retain the multiple black PET tape strips 21 of the main body layer 2 on the outer surface of the battery cell 4 to complete the covering of the metal grid lines 41.

[0026] The above are only the preferred embodiments of the present utility model, and thus the scope of implementation of the present utility model cannot be limited thereby. That is, equivalent changes and modifications made according to the scope of the present utility model application and the content of the specification should still fall within the scope covered by the present utility model application.

Claims

1. A film-covered tape for covering the grid lines of a photovoltaic module, which is pasted on a cell, wherein a plurality of metal grid lines are arranged at intervals along the width direction of the cell, and is characterized in that: It includes a carrier layer, a main layer and release paper; the carrier layer is a transparent PET film; the main layer is arranged on the carrier layer and can be pasted on the outer surface of the battery cell, including a plurality of black PET tape strips arranged at intervals along the width direction of the carrier layer, and the plurality of black PET tape strips correspond to a plurality of metal grid lines of the battery cell one by one to achieve rapid bonding of the metal grid lines; the release paper covers the adhesive surface of the black PET tape strips.

2. The film-covered tape for covering grid lines of photovoltaic modules according to claim 1, characterized in that: The carrier layer comprises a PET film body and an adhesive layer arranged on the PET film body, and the non-adhesive surfaces of the plurality of black PET tape strips are bonded to the adhesive layer.

3. The film-covered adhesive tape for covering grid lines of photovoltaic modules according to claim 1, characterized in that: The width of the carrier layer is consistent with the width of the battery cell, and the distance between two adjacent black PET tape strips is consistent with the distance between two adjacent metal grid lines on the battery cell.

4. The film-covered adhesive tape for covering grid lines of photovoltaic modules according to claim 1, characterized in that: The width of the black PET tape strip is consistent with the width of the relative metal grid line, and the length of the black PET tape strip is consistent with the length of the relative metal grid line.

5. The film-covered adhesive tape for covering grid lines of photovoltaic modules according to claim 1, characterized in that: The thickness of the carrier layer is 0.05-0.1 mm.

6. The film-covered tape for covering grid lines of photovoltaic modules according to claim 1, characterized in that: The width of the black PET tape strip is 1 to 3 mm.

7. The film-covered adhesive tape for covering grid lines of photovoltaic modules according to claim 1, characterized in that: The thickness of the black PET tape strip is 0.06 mm.

8. The film-covered tape for covering grid lines of photovoltaic modules according to claim 1, characterized in that: The thickness of the release paper is 0.01-0.06 mm.

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