Lightweight photovoltaic module

Abstract

The utility model relates to the technical field of solar cell panels, in particular to a light-weight photovoltaic assembly, which comprises a light-weight frame assembly, and a transparent cover plate, a front packaging adhesive film, a cell layer, a back packaging adhesive film and a back plate which are sequentially arranged in the light-weight frame assembly, wherein the back packaging adhesive film is matched with the front packaging adhesive film to package the cell layer; the waterproof coating is coated on the peripheral side of the packaged battery piece layer; the flexible waterproof layer is arranged on the outer side of the waterproof coating and is used for wrapping the battery piece layer; the waterproof support frame is arranged between the flexible waterproof layer and the light-weight frame assembly; the waterproof performance of the battery piece is enhanced by coating the waterproof coating; the flexible waterproof layer further improves the sealing effect, and the flexible waterproof layer can generate elastic deformation when wrapping the battery piece layer; the waterproof supporting frame is located between the flexible waterproof layer and the light-weight frame assembly, the two ends of the waterproof supporting frame abut against the transparent cover plate and the back plate respectively, the supporting effect is achieved, and the situation that the battery piece layer is cracked due to stress in the installation process is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of solar panels, in particular to a lightweight photovoltaic component. Background Art

[0002] Photovoltaic modules are devices that absorb sunlight and convert solar radiation energy directly or indirectly into electrical energy through photoelectric effect or photochemical effect.

[0003] Traditional photovoltaic modules consist of an upper frame, a back sheet, glass and a cell assembly. The upper frame and the back sheet are fixed together by bolts and sealed with resin. In harsh environments, if used for a long time, the resin will age, causing the sealing performance to fail and the product life to be reduced.

[0004] In addition, traditional solar panels have a relatively large mass of about 15 kg / m(2) due to their rigidified glass layers and alloy frames, which severely limits the use of photovoltaic panels on roofs with weak load-bearing capacity.

[0005] Therefore, how to provide a photovoltaic module with sufficient strength, good sealing performance and light weight has become a technical problem that needs to be solved urgently. Utility Model Content

[0006] The technical problem to be solved by the utility model is to provide a lightweight photovoltaic component.

[0007] The utility model is realized by the following technical solutions:

[0008] A lightweight photovoltaic module comprises a lightweight frame module, a transparent cover plate arranged in sequence in the lightweight frame module, a front packaging film, a battery cell layer, a back packaging film and a back plate which cooperate with the front packaging film to package the battery cell layer, and also comprises a waterproof coating coated on the peripheral side of the packaged battery cell layer, a flexible waterproof layer arranged on the outer side of the waterproof coating to wrap the battery cell layer, and a waterproof support frame arranged between the flexible waterproof layer and the lightweight frame module.

[0009] As a further improvement of the present invention, a first sealing member is provided between the flexible waterproof layer and the transparent cover plate and / or between the flexible waterproof layer and the back plate.

[0010] As a further improvement of the present invention, the lightweight frame assembly includes a base and an upper frame arranged on the base, the base is provided with a top stopper that penetrates into the upper frame, and the top stopper is used to cooperate with the inner wall of the upper frame to resist and clamp the surrounding side of the transparent cover.

[0011] As a further improvement of the present invention, the base is provided with a first lightweight chamber, and the top enclosure is provided with a second lightweight chamber.

[0012] As a further improvement of the present invention, a first honeycomb aluminum plate is arranged in the first lightweight chamber, and a second honeycomb aluminum plate is arranged in the second lightweight chamber.

[0013] As a further improvement of the present invention, the first lightweight chamber is communicated with the second lightweight chamber.

[0014] As a further improvement of the present invention, a sealing plate for sealing the first lightweight chamber and the second lightweight chamber is provided on the lower side of the base.

[0015] As a further improvement of the present invention, a third sealing member is provided between the top stop and the transparent cover plate.

[0016] Beneficial effects of the utility model: In the utility model, a waterproof coating is applied on the surrounding side of the battery cell layer after the battery cell layer is encapsulated to enhance the waterproof performance of the battery cell; and a flexible waterproof layer is provided to further improve the sealing effect, and the flexible waterproof layer can undergo elastic deformation when wrapping the battery cell layer to avoid the battery cell layer from cracking due to force during installation; and a waterproof support frame is provided, which is located between the flexible waterproof layer and the lightweight frame assembly, and at the same time, the upper and lower ends respectively resist the transparent cover plate and the back plate, thereby playing a supporting effect to avoid the battery cell layer from cracking due to force during installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The following is a detailed description of the preferred implementation examples of the present invention through the accompanying drawings to help understand the purpose and advantages of the present invention, wherein:

[0018] Figure 1 This is a schematic diagram of the structure of this embodiment;

[0019] Figure 2 Schematic diagram of the photovoltaic module structure in this embodiment;

[0020] Figure 3 Schematic diagram of the lightweight frame assembly structure in this embodiment.

[0021] Numbers in the figure: lightweight frame assembly 1, transparent cover plate 2, front packaging film 3, battery cell layer 4, back packaging film 5, back plate 6, waterproof coating 7, flexible waterproof layer 8, waterproof support frame 9, first sealing member 10, base 101, upper frame 102, top enclosure 103, sealing plate 104, first honeycomb aluminum plate 105, second honeycomb aluminum plate 106, third sealing member 11. DETAILED DESCRIPTION

[0022] The utility model is further described in detail below based on the accompanying drawings and implementation cases.

[0023] The directional terms such as up, down, left, right, front, back, front, back, top, bottom, etc. mentioned or may be mentioned in this specification are defined relative to the structures shown in the drawings. The words "inside" and "outside" refer to the direction toward or away from the geometric center of a specific component, respectively. They are relative concepts, and therefore may change accordingly according to different locations and different usage conditions. Therefore, these or other directional terms should not be interpreted as restrictive terms.

[0024] A lightweight photovoltaic assembly comprises a lightweight frame assembly 1, a transparent cover plate 2, a front packaging film 3, a battery layer 4, a back packaging film 5 and a back plate 6 which cooperate with the front packaging film 3 to package the battery layer 4, and also comprises a waterproof coating 7 coated on the surrounding side of the battery layer 4 after packaging, a flexible waterproof layer 8 arranged on the outside of the waterproof coating 7 for wrapping the battery layer 4, and a waterproof support frame 9 arranged between the flexible waterproof layer 8 and the lightweight frame assembly 1. In the utility model, after the battery layer is packaged, the waterproof coating is coated on the surrounding side of the battery layer to enhance the waterproof performance of the battery; and a flexible waterproof layer 8 is provided to further improve the sealing effect, and the flexible waterproof layer 8 is provided to wrap the battery layer. The cell layer can undergo elastic deformation to avoid the cell layer from cracking due to force during installation; and a waterproof support frame is provided, which is located between the flexible waterproof layer 8 and the lightweight frame assembly, and the upper and lower ends respectively resist the transparent cover plate and the back plate, thereby playing a supporting effect to avoid the cell layer from cracking due to force during installation. Specifically, the flexible waterproof layer 8 is a nitrile rubber layer, which has good heat resistance and can undergo elastic deformation after wrapping the cell layer to avoid the cell layer from cracking due to force; the waterproof coating 7 is a polyurethane layer (polyurethane waterproof coating layer, which is a prior art and will not be described here); the waterproof support frame 9 is a glass fiber waterproof support frame 9, the glass fiber has strong corrosion resistance, and its quality is relatively light, and will not increase the weight of the photovoltaic module too much.

[0025] A first seal 10 is provided between the flexible waterproof layer 8 and the transparent cover plate 2 and / or between the flexible waterproof layer 8 and the back plate 6. The first seal 10 is a silicone seal ring, which further improves the sealing between the flexible waterproof layer 8 and the transparent cover plate 2, and between the flexible waterproof layer 8 and the back plate 6. The silicone seal ring is resistant to high temperature and aging and has excellent weather resistance.

[0026] The lightweight frame assembly 1 includes a base 101 and an upper frame 102 arranged on the base 101. The base 101 is provided with a top stopper 103 that penetrates into the upper frame 102. The top stopper 103 is used to cooperate with the inner wall of the upper frame 102 to resist and clamp the sides of the transparent cover plate 2.

[0027] A first lightweight chamber is defined in the base 101 , and a second lightweight chamber is defined in the top enclosure 103 . The first lightweight chamber and the second lightweight chamber can reduce the overall mass of the lightweight frame assembly 1 .

[0028] A first honeycomb aluminum panel 105 is disposed in the first lightweight chamber, and a second honeycomb aluminum panel 106 is disposed in the second lightweight chamber. The honeycomb aluminum panel is lightweight and has excellent weather resistance and corrosion resistance.

[0029] The first lightweight chamber is communicated with the second lightweight chamber, and a sealing plate 104 for sealing the first lightweight chamber and the second lightweight chamber is provided on the lower side of the base 101; as shown in the figure, during installation, the second honeycomb aluminum panel 106 can be installed in the second lightweight chamber first, and then the first honeycomb aluminum panel 105 can be installed in the first lightweight chamber, and finally sealed by the sealing plate 104, which is convenient for installation.

[0030] A third sealing member 11 is provided between the top stopper 103 and the transparent cover plate 2 . The third sealing member 11 is a silicone sealing ring and is used to improve the sealing performance between the top stopper 103 and the transparent cover plate 2 .

[0031] Finally, it should be noted that the above implementation cases are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the above implementation cases, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the above implementation cases, or replace some of the technical features therein with equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the implementation cases of the utility model.

Claims

1. A lightweight photovoltaic module, comprising a lightweight frame module (1), a transparent cover plate (2) sequentially arranged in the lightweight frame module (1), a front packaging film (3), a battery cell layer (4), a back packaging film (5) cooperating with the front packaging film (3) to package the battery cell layer (4), and a back plate (6), characterized in that: It also includes a waterproof coating (7) coated on the peripheral side of the encapsulated battery layer (4), a flexible waterproof layer (8) arranged on the outside of the waterproof coating (7) and used to wrap the battery layer (4), and a waterproof support frame (9) arranged between the flexible waterproof layer (8) and the lightweight frame assembly (1).

2. A lightweight photovoltaic module according to claim 1, characterized in that: A first sealing member (10) is provided between the flexible waterproof layer (8) and the transparent cover plate (2) and / or between the flexible waterproof layer (8) and the back plate (6).

3. A lightweight photovoltaic module according to claim 1, characterized in that: The lightweight frame assembly (1) comprises a base (101) and an upper frame (102) arranged on the base (101); the base (101) is provided with a top stopper (103) which penetrates into the upper frame (102); the top stopper (103) is used to cooperate with the inner wall of the upper frame (102) to resist and clamp the peripheral side of the transparent cover plate (2).

4. A lightweight photovoltaic module according to claim 3, characterized in that: The base (101) is provided with a first lightweight chamber, and the top stopper (103) is provided with a second lightweight chamber.

5. A lightweight photovoltaic module according to claim 4, characterized in that: A first honeycomb aluminum plate (105) is arranged in the first lightweight chamber, and a second honeycomb aluminum plate (106) is arranged in the second lightweight chamber.

6. A lightweight photovoltaic module according to claim 5, characterized in that: The first lightweight chamber is communicated with the second lightweight chamber.

7. A lightweight photovoltaic module according to claim 6, characterized in that: A sealing plate (104) for sealing the first lightweight chamber and the second lightweight chamber is arranged on the lower side of the base (101).

8. A lightweight photovoltaic module according to claim 3, characterized in that: A third sealing member (11) is provided between the top stopper (103) and the transparent cover plate (2).

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