Anti-yellowing solar gap film

Abstract

The utility model discloses an anti-yellowing solar gap film, which relates to the technical field of solar gap films and comprises a mounting layer arranged on the outer side of a single battery of a solar panel and used for mounting the single battery; the protection layer is arranged between the bottom of the installation layer and a substrate of the solar cell panel and used for protecting the installation layer and the single cells, the protection layer comprises an EVA layer, an anti-oxidation layer is arranged at the top of the EVA layer, an absorption layer is arranged at the bottom of the EVA layer, and a bonding layer used for being tightly connected with the substrate is arranged at the bottom of the absorption layer. According to the utility model, through the arrangement of the anti-oxidation layer, the solar gap film has a good anti-oxidation effect, meanwhile, the absorption layer can fully absorb and convert ultraviolet rays, the condition that the solar gap film is yellowed due to illumination can be avoided, and the service life of the solar gap film can be further prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of solar gap films, in particular to an anti-yellowing solar gap film. Background Art

[0002] Solar gap film is a technology used to improve the power generation efficiency of photovoltaic modules. It uses a special reflective film or light-absorbing material in the gaps between PV modules to enhance the utilization of sunlight. This technology is primarily applied to the backside or gaps of solar panels. By reflecting or absorbing sunlight, it increases the conversion of light energy into the cells, thereby improving the power output of the entire module. The design and material selection of solar gap film are aimed at minimizing reflection losses and preventing hot spot effects, while also improving the stability and service life of the module.

[0003] The existing technology has the following deficiencies: the existing solar gap film is exposed to ultraviolet rays during use and cannot fully absorb and convert ultraviolet rays, which makes the back of the solar gap film prone to yellowing, and the EVA film is prone to oxidation damage, which will affect the service life of the solar gap film. Utility Model Content

[0004] The purpose of the utility model is to provide an anti-yellowing solar gap film. By setting the anti-oxidation layer, the solar gap film has a good anti-oxidation effect. At the same time, the absorption layer can fully absorb and convert ultraviolet rays, which can avoid the yellowing of the solar gap film due to light, and thus extend the service life of the solar gap film to solve the above-mentioned deficiencies in the technology.

[0005] In order to achieve the above-mentioned object, the present invention provides the following technical solutions: an anti-yellowing solar gap film, comprising a mounting layer, which is arranged outside a single cell of a solar panel and is used for mounting the single cell;

[0006] A protective layer is provided between the bottom of the mounting layer and the substrate of the solar panel to protect the mounting layer and the single cells;

[0007] The protective layer comprises an EVA layer, an anti-oxidation layer is provided on the top of the EVA layer, an absorption layer is provided on the bottom of the EVA layer, and an adhesive layer for close connection with the substrate is provided on the bottom of the absorption layer.

[0008] Preferably, the mounting layer includes a fixing layer, the inner wall of the fixing layer is provided with a plurality of placement grooves for fixing the single cells, and a reinforcement layer is provided at the bottom of the fixing layer.

[0009] Preferably, the bottom of the reinforcement layer is bonded to the anti-oxidation layer, and the reinforcement layer is made of PET film material.

[0010] Preferably, the anti-oxidation layer is filled with a hydrolysis-resistant antioxidant, and the absorption layer is filled with an ultraviolet absorber.

[0011] Preferably, the fixing layer is made of perovskite material, and the cross-sectional area of ​​the placement groove when viewed from above is the same as the cross-sectional area of ​​the single cell when viewed from above.

[0012] Preferably, the bonding layer is made of adhesive, and the cross-sectional area of ​​the bonding layer when viewed from above is the same as the cross-sectional area of ​​the absorption layer when viewed from above.

[0013] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0014] 1. The absorption layer filled with ultraviolet absorbers can absorb ultraviolet rays and fully convert light energy, thereby improving the working efficiency of solar cells. At the same time, the antioxidant layer filled with hydrolysis-resistant antioxidants can protect the solar gap film, thereby preventing the solar gap film from yellowing due to ultraviolet rays, thereby extending the service life of the solar gap film and improving the light energy conversion efficiency of solar panels.

[0015] 2. By setting the placement groove, the fixed layer can fully fill the gaps between the single cells. At the same time, the reinforcement layer can reinforce the fixation of the fixed layer, thereby ensuring the stability of the single cells, so that the solar gap film can be more stably used for filling in the solar cell module. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0018] Figure 2 This is the internal structure diagram of the utility model.

[0019] Figure 3 This is an exploded view of the three-dimensional structure of the installation layer of the utility model.

[0020] Figure 4 This is an exploded view of the three-dimensional structure of the protective layer of the utility model.

[0021] Description of reference numerals:

[0022] 1. Installation layer; 101. Fixing layer; 102. Placement slot; 103. Reinforcement layer;

[0023] 2. Protective layer; 201. EVA layer; 202. Anti-oxidation layer; 203. Absorption layer; 204. Adhesive layer. DETAILED DESCRIPTION

[0024] The utility model provides Figure 1 The anti-yellowing solar gap film shown includes a mounting layer 1, which is arranged outside the single cell of the solar panel and is used for mounting the single cell;

[0025] The protective layer 2 is arranged between the bottom of the mounting layer 1 and the substrate of the solar cell panel, and is used to protect the mounting layer 1 and the single cells.

[0026] In order to make the solar gap film have good anti-yellowing effect, such as Figure 1-2 and Figure 4 As shown, the protective layer 2 includes an EVA layer 201, an anti-oxidation layer 202 is arranged on the top of the EVA layer 201, an absorption layer 203 is arranged at the bottom of the EVA layer 201, and an adhesive layer 204 for tightly connecting with the substrate is arranged at the bottom of the absorption layer 203. The arrangement of the absorption layer 203 and the anti-oxidation layer 202 can fully absorb ultraviolet rays, and at the same time prevent the solar gap film from being oxidized, thereby avoiding the yellowing of the solar gap film and extending the service life of the solar gap film.

[0027] In order to ensure that the solar gap film can be stably fixed between the single cell and the substrate, Figure 1-3 As shown, the mounting layer 1 includes a fixing layer 101, and a plurality of placement grooves 102 for fixing single cells are provided on the inner wall of the fixing layer 101. A reinforcement layer 103 is provided at the bottom of the fixing layer 101, and the bottom of the reinforcement layer 103 is bonded to the anti-oxidation layer 202. The reinforcement layer 103 is made of PET film material, and the fixing layer 101 is made of perovskite material. The top view cross-sectional area of ​​the placement groove 102 is the same as the top view cross-sectional area of ​​the single cell. Through the provision of the placement groove 102, the fixing layer 101 can be stably sleeved onto the outside of the single cell. The reinforcement layer 103 can reinforce the fixation of the fixing layer 101, so that the mounting layer 1 can be stably sleeved onto the outside of the single cell.

[0028] In order to ensure that the protective layer 2 can stably protect the solar gap film, Figure 2 and Figure 4As shown, the antioxidant layer 202 is filled with a hydrolysis-resistant antioxidant, the absorption layer 203 is filled with an ultraviolet absorber, the bonding layer 204 is composed of an adhesive, and the top-view cross-sectional area of ​​the bonding layer 204 is the same as the top-view cross-sectional area of ​​the absorption layer 203. The absorption layer 203 filled with the ultraviolet absorber can fully absorb ultraviolet rays. At the same time, the antioxidant layer 202 filled with the hydrolysis-resistant antioxidant can prevent the solar gap film from being oxidized, thereby making the solar gap film have a good antioxidant effect.

[0029] When the solar gap film is produced and used, the antioxidant layer 202 filled with a hydrolysis-resistant antioxidant is compounded to the top of the EVA layer 201, and the absorption layer 203 filled with an ultraviolet absorber is attached to the bottom of the EVA layer 201. Then, the bonding layer 204 composed of adhesive is applied to the bottom of the absorption layer 203, and the reinforcement layer 103 is bonded to the top of the antioxidant layer 202. Then, the fixing layer 101 is bonded to the top of the reinforcement layer 103. Then, the solar gap film is bonded to the top of the substrate of the solar cell through the bonding layer 204, and the multiple placement grooves 102 on the inner wall of the fixing layer 101 can be By being sleeved onto the outside of multiple single cells, the solar gap film can be stably installed inside the solar cell module, and then the ultraviolet rays can be fully absorbed by the ultraviolet absorber inside the absorption layer 203. At the same time, the hydrolysis-resistant antioxidant inside the antioxidant layer 202 can protect the EVA layer 201, thereby avoiding the yellowing of the solar gap film due to ultraviolet rays, thereby extending the service life of the solar gap film and improving the conversion efficiency of light energy. This embodiment specifically solves the problem in the prior art that the solar gap film is easily yellowed due to ultraviolet rays and has a short service life.

[0030] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An anti-yellowing solar gap film, characterized in that: include: An installation layer (1) is provided outside the single cell of the solar cell panel and is used for installing the single cell; A protective layer (2) is provided between the bottom of the mounting layer (1) and the substrate of the solar cell panel, and is used to protect the mounting layer (1) and the single cells; The protective layer (2) comprises an EVA layer (201), an anti-oxidation layer (202) is provided on the top of the EVA layer (201), an absorption layer (203) is provided on the bottom of the EVA layer (201), and an adhesive layer (204) for close connection with a substrate is provided on the bottom of the absorption layer (203).

2. The anti-yellowing solar gap film according to claim 1, characterized in that: The mounting layer (1) comprises a fixing layer (101), the inner wall of the fixing layer (101) is provided with a plurality of placement grooves (102) for fixing single cells, and a reinforcement layer (103) is provided at the bottom of the fixing layer (101).

3. The anti-yellowing solar gap film according to claim 2, characterized in that: The bottom of the reinforcement layer (103) is bonded to the anti-oxidation layer (202), and the reinforcement layer (103) is made of PET film material.

4. The anti-yellowing solar gap film according to claim 1, characterized in that: The anti-oxidation layer (202) is filled with a hydrolysis-resistant antioxidant, and the absorption layer (203) is filled with an ultraviolet absorber.

5. The anti-yellowing solar gap film according to claim 2, characterized in that: The fixing layer (101) is made of perovskite material, and the cross-sectional area size of the placement groove (102) when viewed from above is the same as the cross-sectional area size of the single cell when viewed from above.

6. The anti-yellowing solar gap film according to claim 1, characterized in that: The bonding layer (204) is made of adhesive, and the cross-sectional area size of the bonding layer (204) when viewed from above is the same as the cross-sectional area size of the absorption layer (203) when viewed from above.

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