Full-color photoelectric functional material lamination structure and method

Abstract

The invention discloses a full-color photoelectric functional material lamination structure and method, and relates to the technical field of lamination, the structure comprises a back plate and a front plate, the top surface of the back plate is provided with a battery piece, and the back plate and the battery piece are packaged through a first packaging adhesive film; a first spraying layer is arranged on the bottom surface of the front plate, and the first spraying layer and the front plate are packaged through a second packaging adhesive film; the first spraying layer and the battery piece are packaged through a third packaging adhesive film; a second spraying layer is sprayed on the top surface of the first spraying layer; the second spraying layer is provided with a color spraying layer, the color spraying layer is arranged on the bottom surface of the second packaging adhesive film, and the second spraying layer and the color spraying layer are uniformly provided with a plurality of micropores which are communicated with each other. According to the invention, the transportation cost can be reduced, the transportation safety is improved, and the overall weight is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of lamination technology, and in particular to a full-color optoelectronic functional material lamination structure and method. Background Art

[0002] Photovoltaic modules are devices that convert light energy into electrical energy. They have a multi-layer structure. When making photovoltaic modules, a laminator is required to laminate the multi-layer photovoltaic modules at a certain temperature.

[0003] Photovoltaic modules are usually made of glass, backsheet, adhesive (EVA or POE, etc.) and cells pressed together. In order to improve the power generation efficiency of the module, the backsheet is often replaced with glass, that is, a double-glass module. In the structure of a double-glass module, the adhesive and the cells are sandwiched between the two outer layers of glass, and the layers are bonded and fixed together through encapsulation.

[0004] In the existing lamination method of photovoltaic modules, color spraying is usually performed directly on the air side of the front glass, and then the entire piece of glass needs to be transported to the module factory for lamination. This method has the following significant disadvantages: 1. High transportation cost. Due to the heavy weight and large size of glass, special vehicles are required for transportation, and long-distance transportation is particularly expensive; 2. The glass is easily damaged during transportation due to improper packaging; 3. The overall weight after lamination is heavy, which is not conducive to installation and maintenance.

[0005] Therefore, those skilled in the art provide a full-color optoelectronic functional material lamination structure and method to solve the problems raised in the above background technology. Summary of the invention

[0006] The present invention provides a full-color optoelectronic functional material lamination structure and method which can reduce transportation cost, improve transportation safety, reduce overall weight, enhance structural strength and reliability, and extend service life.

[0007] In order to achieve the above object, the present invention provides the following technical solutions:

[0008] A full-color optoelectronic functional material laminate structure of the present invention comprises:

[0009] A backplane, a top surface of which is provided with a battery cell, and a first packaging film is used to package the backplane and the battery cell;

[0010] A front plate, wherein a first spray coating is disposed on the bottom surface of the front plate, and the first spray coating and the front plate are packaged by a second packaging film;

[0011] The first spray layer and the battery cell are encapsulated by a third encapsulation film;

[0012] The top surface of the first spray layer is sprayed with a second spray layer; the second spray layer is provided with a color spray layer, the color spray layer is provided on the bottom surface of the second packaging film, and the second spray layer and the color spray layer are evenly provided with a plurality of interconnected micropores.

[0013] Furthermore, the front plate and the first sprayed layer are made of one of glass, PET, ETFE, PVDF or a water-blocking film.

[0014] Furthermore, the battery cell is a P-type or N-type battery.

[0015] Furthermore, the battery cell is a cadmium telluride battery or a perovskite battery.

[0016] Furthermore, the back plate is black, white or transparent.

[0017] Furthermore, the second spray coating is one of PET, PVDF or ETFE.

[0018] Furthermore, the diameter of the micropores is 0.5-10 mm.

[0019] A full-color optoelectronic functional material lamination method of the present invention comprises the following steps:

[0020] Step 1: Place the backplane, front panel and battery cells into the assembly line;

[0021] Step 2, cutting the adhesive film into a first packaging adhesive film, a second packaging adhesive film and a third packaging adhesive film;

[0022] Step 3, encapsulating the battery cell by bonding it to the back plate through a first encapsulation film;

[0023] Step 4, encapsulating the third encapsulation film on the top surface of the battery cell;

[0024] Step 5, spraying a first spray layer on the top surface of the third packaging film, and performing a plasma modification treatment on the top surface of the first spray layer;

[0025] Step 6: spraying on the top surface of the first spray layer to form a second spray layer, spraying on the second spray layer to form a color spray layer, and reserving micropores during the spraying process of the second spray layer and the color spray layer; performing plasma modification treatment on the top surface of the color spray layer

[0026] Step seven, encapsulate the front panel by bonding it to the color spray layer through the second encapsulation film.

[0027] In the above technical scheme, the present invention provides a full-color optoelectronic functional material lamination structure and method, which has the following beneficial effects: significantly reducing transportation costs and improving transportation safety; reducing overall weight and facilitating installation and maintenance; enhancing structural strength and reliability and extending service life; meeting environmental protection requirements and promoting the green development of the photovoltaic industry. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. 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.

[0029] Figure 1 A schematic diagram of the decomposed structure of a full-color optoelectronic functional material lamination structure and method provided by an embodiment of the present invention;

[0030] Figure 2 for Figure 1 Top view of the medium color spray layer.

[0031] Description of reference numerals:

[0032] 1. Backplane; 2. Battery cell; 3. First packaging film; 4. Front panel; 5. First spray layer; 6. Micropores; 7. Second packaging film; 8. Third packaging film; 9. Second spray layer; 10. Color spray layer. DETAILED DESCRIPTION

[0033] The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0034] In the description of the embodiments of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the invention.

[0035] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, a mechanical connection, or an electrical connection, a direct connection, or an indirect connection through an intermediate medium, or the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] See also Figure 1-2 As shown;

[0037] A full-color optoelectronic functional material laminate structure according to an embodiment of the present invention comprises:

[0038] A backplane 1, wherein a battery cell 2 is disposed on the top surface of the backplane 1, and the backplane 1 and the battery cell 2 are encapsulated by a first encapsulation film 3;

[0039] A front plate 4, wherein a first spray coating 5 is disposed on the bottom surface of the front plate 4, and the first spray coating 5 and the front plate 4 are packaged by a second packaging film 7;

[0040] The first spray layer 5 and the battery cell 2 are encapsulated by a third encapsulation film 8;

[0041] The top surface of the first spray layer 5 is sprayed with a second spray layer 9; the second spray layer 9 is provided with a color spray layer 10, and the color spray layer 10 is provided on the bottom surface of the second packaging film 7. The second spray layer 9 and the color spray layer 10 are evenly provided with a plurality of interconnected micropores 6. The arrangement of the plurality of micropores 6 can increase the adhesion between the second packaging film 7 and the color spray layer 10, and improve the firmness and reliability of the overall structure after lamination.

[0042] The micropores 6 allow the packaging film to be more combined with the film material, and the peeling force between the second packaging film 7 and the color spray layer 10 is greater than 40 N / cm.

[0043] The micropores 6 can also increase light transmittance, allowing more light to pass through the gaps.

[0044] Furthermore, the front panel 4 and the first spray layer 5 are thin films, specifically one of lightweight and high-strength materials such as glass, PET (polyethylene terephthalate), ETFE (ethylene-tetrafluoroethylene copolymer), PVDF (polyvinylidene fluoride) or a water-blocking film, which is lighter and thinner and can be rolled up for transportation, which can reduce transportation costs, improve transportation safety, and reduce overall weight.

[0045] Furthermore, the battery cell 2 is a P-type or N-type battery.

[0046] Furthermore, the battery cell 2 is a cadmium telluride battery or a perovskite battery.

[0047] Furthermore, the back plate 1 is black, white or transparent.

[0048] Furthermore, the second spray coating 9 is one of PET (polyethylene terephthalate), PVDF (polyvinylidene fluoride) or ETFE (ethylene-tetrafluoroethylene copolymer).

[0049] Furthermore, the diameter of the micropores 6 is 0.5-10 mm.

[0050] A full-color optoelectronic functional material lamination method of the present invention comprises the following steps:

[0051] Step 1, the back plate 1, the front plate 4 and the battery cell 2 flow into the assembly line;

[0052] Step 2, cutting the adhesive film into a first encapsulation adhesive film 3, a second encapsulation adhesive film 7 and a third encapsulation adhesive film 8;

[0053] Step 3, the battery cell 2 is packaged with the back plate 1 by bonding the first packaging film 3;

[0054] Step 4: encapsulate the third encapsulation film 8 on the top surface of the battery cell 2;

[0055] Step 5, spraying to form a first spray layer 5 on the top surface of the third packaging film 8;

[0056] Step six, spraying on the top surface of the first spray layer 5 to form a second spray layer 9, spraying on the second spray layer 9 to form a color spray layer 10, and reserving micropores 6 during the spraying process of the second spray layer 9 and the color spray layer 10; performing plasma modification treatment on the top surface of the color spray layer 10; the plasma modification treatment increases the firmness between the second packaging film 7 and the color spray layer 10, and changes the surface tension (dyne value) of the color spray layer 10. The greater the tension, the better the adhesion, and the minimum requirement is greater than 40dyn / cm, so that the adhesion ASTM grade of the color spray layer 10 is greater than 4B.

[0057] The second spray layer 9 is a black layer, and the color spray layer 10 is a color layer. When spraying, the black layer is sprayed first, and then the color layer is sprayed. The black layer does not cover the battery cell 2, so it will not affect the performance, but improves the overall aesthetics.

[0058] Before spraying, PS, AI or CAD related software can be used to design the arrangement of the micropores 10 and directly transmit it to the sprayer, and the sprayer sprays according to avoiding the micropores 10.

[0059] Step seven: The front plate 4 is laminated and packaged on the color spray layer 6 through the second packaging film 7 .

[0060] In order to cover the white lines and keep the color consistent, a darker color is necessary, which will block the light from penetrating the battery cell below, resulting in low performance. The second spray layer 9 of the present application is a black layer, which will not reduce the performance and has a uniform color and beautiful appearance.

[0061] This application enhances structural strength and reliability, extends service life, complies with environmental protection requirements, and promotes the green development of the photovoltaic industry.

[0062] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A full-color optoelectronic functional material laminate structure, characterized in that: include: A backplane (1), wherein a battery cell (2) is arranged on the top surface of the backplane (1), and the backplane (1) and the battery cell (2) are encapsulated by a first encapsulation film (3); A front plate (4), wherein a first spray coating (5) is provided on the bottom surface of the front plate (4), and the first spray coating (5) and the front plate (4) are packaged via a second packaging film (7); The first spray layer (5) and the battery cell (2) are packaged via a third packaging film (8); The top surface of the first spray layer (5) is sprayed with a second spray layer (9); a color spray layer (10) is arranged on the second spray layer (9); the color spray layer (10) is arranged on the bottom surface of the second packaging film (7); and a plurality of interconnected micropores (6) are evenly arranged on the second spray layer (9) and the color spray layer (10).

2. The full-color optoelectronic functional material laminate structure according to claim 1, characterized in that: The front plate (4) and the first spray layer (5) are made of one of glass, PET, ETFE, PVDF or a water-blocking film.

3. The full-color optoelectronic functional material laminate structure according to claim 1, characterized in that: The battery cell (2) is a P-type or N-type battery.

4. The full-color optoelectronic functional material laminate structure according to claim 1, characterized in that: The battery cell (2) is a cadmium telluride battery or a perovskite battery.

5. The full-color optoelectronic functional material laminate structure according to claim 1, characterized in that: The back plate (1) is black, white or transparent.

6. The full-color optoelectronic functional material laminate structure according to claim 1, characterized in that: The second spray layer 9 is one of PET, PVDF or ETFE.

7. The full-color optoelectronic functional material laminate structure according to claim 1, characterized in that: The diameter of the micropores (6) is 0.5-10 mm.

8. A full-color optoelectronic functional material laminate structure according to any one of claims 1 to 7, characterized in that: The lamination method comprises the following steps: Step 1, placing the back plate (1), the front plate (4) and the battery cell (2) into an assembly line; Step 2: cutting the adhesive film into a first packaging adhesive film (3), a second packaging adhesive film (7) and a third packaging adhesive film (8); Step 3, encapsulating the battery cell (2) by bonding it to the back plate (1) through the first encapsulation film (3); Step 4: encapsulating the third encapsulation film (8) on the top surface of the battery cell (2); Step 5, spraying on the top surface of the third packaging film (8) to form a first spray layer (5); Step 6: spraying the top surface of the first spraying layer (5) to form a second spraying layer (9), spraying the second spraying layer (9) to form a color spraying layer (10), reserving micropores (6) during the spraying process of the second spraying layer (9) and the color spraying layer (10); performing plasma modification treatment on the top surface of the color spraying layer (10) Step seven, the front plate (4) is laminated and packaged on the color spray layer 6 through the second packaging film (7).

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