Photovoltaic module with filter

Abstract

The utility model discloses a photovoltaic assembly with a filter. The photovoltaic assembly comprises a substrate, the photovoltaic module comprises a plurality of photovoltaic battery pieces, adjacent photovoltaic battery pieces are connected through interconnection strips, the plurality of photovoltaic battery pieces form a battery pack, and an adhesive film is arranged on the periphery of the battery pack; the tempered glass panel is adhered to the adhesive film, and the tempered glass panel is adhered to the adhesive film; and the filter plate is connected with the toughened glass panel through a connecting mechanism. The beneficial effects provided by the utility model are that the technical problems that the temperature of the photovoltaic assembly cannot be reduced, the power generation efficiency of the photovoltaic assembly cannot be improved and the service life of the photovoltaic assembly cannot be prolonged in the actual use process due to the fact that the photovoltaic assembly in the prior art is not provided with a corresponding filtering structure and absorbs the infrared light part in the sunlight are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic equipment, in particular to a photovoltaic component with a filter. Background Art

[0002] The principle of solar photovoltaic power generation is to use the photoelectric conversion effect of semiconductor materials to convert radiation energy into electrical energy in one step. Photovoltaic cell materials are mostly wide-bandgap semiconductor materials. When the energy of photons is large enough to cross the bandgap width, the photovoltaic cell will produce a spectral response and generate electricity. Conversely, photons with low bandgap energy have insufficient energy and cannot be directly used by the photovoltaic cell.

[0003] Chinese utility model CN219780076U proposes a "photovoltaic module frame and photovoltaic module." This device primarily reduces the difficulty of securing the photovoltaic module during installation, and can even reduce the number of people installing the same photovoltaic module, thereby improving the installation efficiency and reducing the labor cost of photovoltaic module installation. However, the photovoltaic cells in this photovoltaic module can only utilize ultraviolet and visible light with shorter wavelengths in the solar spectrum. Infrared light, which accounts for approximately 43% of the total solar radiation energy, is converted into waste heat. This waste heat causes the photovoltaic module to heat up, and in summer the temperature of the photovoltaic module can reach 80°C, seriously affecting the power generation efficiency and service life of the photovoltaic module. Utility Model Content

[0004] The purpose of the present utility model is to overcome the above-mentioned technical deficiencies and provide a photovoltaic module with a filter to solve the technical problem that the photovoltaic module in the prior art is not provided with a corresponding filtering structure, resulting in the absorption of the infrared light portion of the sunlight, and the inability to reduce the temperature of the photovoltaic module during actual use, improve the power generation efficiency of the photovoltaic module, and also cannot extend the service life of the photovoltaic module.

[0005] In order to achieve the above technical purpose, the present invention adopts the following technical solutions:

[0006] A photovoltaic module with a filter, comprising:

[0007] A plurality of photovoltaic cells, wherein adjacent photovoltaic cells are connected by interconnecting strips, and the plurality of photovoltaic cells constitute a battery pack, wherein an adhesive film is provided on the periphery of the battery pack;

[0008] A tempered glass panel, wherein the tempered glass panel is bonded to the adhesive film;

[0009] A filter is connected to the tempered glass panel via a connecting mechanism.

[0010] In a specific embodiment, the adhesive film is an EVA adhesive film.

[0011] In a specific embodiment, the filter can have a filter length a, and a>0.8 μm.

[0012] In a specific embodiment, the connecting mechanism includes two mounting plates and two sealing plates; the mounting plates are provided on both sides of the tempered glass panel and the filter, and the sealing plates are respectively provided at both ends of the two mounting plates.

[0013] In a specific embodiment, the mounting plate is a bow-shaped plate, and a first accommodating cavity for placing the filter and a second accommodating cavity for placing the tempered glass panel are provided on the mounting plate; an air layer is provided between the first accommodating cavity and the second accommodating cavity.

[0014] In a specific embodiment, a recessed cavity is provided on the outer side of the mounting plate, positioning blocks are provided at both ends of the recessed cavity, positioning holes are provided on the positioning blocks, and the sealing plate is engaged in the positioning holes.

[0015] In a specific embodiment, notches are provided on both sides of the sealing plate, a transverse plate is installed in the notch, and a positioning rod that cooperates with the positioning hole is provided on the transverse plate.

[0016] In a specific embodiment, a first sealing block for sealing the first accommodating cavity and a second sealing block for sealing the second accommodating cavity are fixed to a surface of the sealing plate facing the mounting plate.

[0017] In a specific embodiment, a protrusion for sealing the air layer is provided in the middle of the sealing plate.

[0018] In a specific embodiment, the mounting plate and the sealing plate are both plastically deformable plates.

[0019] Compared with the prior art, the beneficial effects of the present invention include:

[0020] 1. Compared with the prior art, the present invention assembles a filter on a tempered glass panel through a connecting mechanism, which can effectively filter out infrared light in sunlight and also protect the tempered glass panel. The interconnecting strips are used to bond adjacent photovoltaic cells to form a battery pack, and the adhesive film is used to bond the tempered glass panel and the battery pack to form a complete photovoltaic module. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall expanded structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the assembly of the tempered glass panel, filter and mounting plate of the utility model;

[0023] Figure 3 This is a schematic diagram of the assembly of the mounting plate and the sealing plate of the utility model;

[0024] Figure 4 This utility model Figure 3 Schematic diagram on the middle right.

[0025] In the figure: 1. Photovoltaic cell; 2. Interconnection strip; 3. Adhesive film; 4. Tempered glass panel; 5. Filter; 6. Connecting mechanism; 7. Mounting plate; 71. First accommodating chamber; 72. Air layer; 73. Second accommodating chamber; 74. Recessed chamber; 75. Positioning block; 751. Positioning hole; 8. Sealing plate; 81. Notch; 82. Horizontal plate; 83. Positioning rod; 84. First sealing block; 85. Second sealing block. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0027] See also Figure 1 The utility model provides a photovoltaic module with a filter, comprising:

[0028] A plurality of photovoltaic cells 1 are connected to each other via interconnection bars 2 . The plurality of photovoltaic cells 1 form a battery pack. An adhesive film 3 is provided on the periphery of the battery pack.

[0029] The tempered glass panel 4 is bonded to the adhesive film 3 .

[0030] The filter 5 is connected to the tempered glass panel 4 via a connecting mechanism 6 .

[0031] By assembling a filter 5 on the tempered glass panel 4 through a connecting mechanism 6, the filter 5 can effectively filter out infrared light in sunlight, while also protecting the tempered glass panel 4. The interconnecting strips 2 are used to bond adjacent photovoltaic cells 1 to form a battery pack, and the adhesive film 3 is used to bond the tempered glass panel 4 to the battery pack to form a complete photovoltaic module.

[0032] To improve the adhesiveness of the film 3, please refer to Figure 1 In a preferred embodiment, the adhesive film 3 is an EVA adhesive film 3 .

[0033] EVA film 3 is a thermosetting adhesive film 3 used to be placed in the middle of laminated glass. EVA film 3 has advantages in adhesion, durability, optical properties, etc., and has high transparency and high adhesion, which can be applied to various interfaces. It has good durability and can resist high temperature, moisture, and ultraviolet rays. It is easy to store and can be stored at room temperature. The adhesion of EVA is not affected by humidity and water-absorbing films. Compared with PVB, it has stronger sound insulation effect, especially high-frequency sound effects. Due to its low melting point and easy flow, it can be applied to the lamination process of various glasses.

[0034] To improve the filtering effect of filter 5, please refer to Figure 1 In a preferred embodiment, the filter 5 can have a filter length a, and a>0.8 μm.

[0035] The filter 5 is made of a material with high transmittance and low reflectivity, which can filter out infrared light with a wavelength above 0.8μm without affecting the sunlight with a wavelength below 0.8μm passing through the tempered glass panel 4 and irradiating the photovoltaic cell 1. The filter 5 can adopt a multi-layer structure to further improve its filtering effect and anti-interference ability.

[0036] To improve the assembly efficiency of the filter 5 and the tempered glass panel 4, please refer to Figure 2-Figure 4 , the connecting mechanism 6 includes two mounting plates 7 and two sealing plates 8; mounting plates 7 are provided on both sides of the tempered glass panel 4 and the filter 5, and sealing plates 8 are provided at both ends of the two mounting plates 7. The mounting plate 7 is a bow-shaped plate body, and a first accommodating cavity 71 for placing the filter 5 and a second accommodating cavity 73 for placing the tempered glass panel 4 are provided on the mounting plate 7; an air layer 72 is provided between the first accommodating cavity 71 and the second accommodating cavity 73, and a recessed cavity 74 is provided on the outer side of the mounting plate 7. Positioning blocks 75 are provided at both ends of the recessed cavity 74. A positioning hole 751 is provided on the positioning block 75, and a sealing plate 8 is engaged in the positioning hole 751. Notches 81 are provided on both sides of the sealing plate 8, and a cross plate 82 is installed in the notch 81. A positioning rod 83 that cooperates with the positioning hole 751 is provided on the cross plate 82. A first sealing block 84 for sealing the first accommodating cavity 71 and a second sealing block 85 for sealing the second accommodating cavity 73 are fixed on the side of the sealing plate 8 facing the mounting plate 7. A protrusion for sealing the air layer 72 is provided in the middle of the sealing plate 8. Both the mounting plate 7 and the sealing plate 8 are plastically deformable plates.

[0037] The mounting plate 7 and the sealing plate 8 are both plastically deformable plates, and the mounting plate 7 is a bow-shaped plate, with a first accommodating cavity 71 and a second accommodating cavity 73 provided from top to bottom, wherein the first accommodating cavity 71 is used to place the filter 5, and the second accommodating cavity 73 is used to place the tempered glass panel 4, and an air layer 72 is formed between the filter 5 and the tempered glass panel 4. In order to enhance the sealing between the two, sealing plates 8 are respectively installed at the front and rear ends of the mounting plate 7 to seal it, and the adopted snap-fit ​​structure ensures stability while also facilitating the staff to quickly disassemble it, thereby greatly improving the installation and disassembly efficiency of the staff.

[0038] In order to better understand the present invention, the following Figures 1-4 The working process of a photovoltaic module with a filter 5 of the utility model is described in detail: when in use, the staff assembles and splices multiple photovoltaic cells 1 through interconnection sheets, and assembles them into a battery pack, and sets a film 3 on the periphery of the battery pack, and then assembles the filter 5 and the tempered glass panel 4 in the first accommodating cavity 71 and the second accommodating cavity 73 of the mounting plate 7, and seals the upper and lower ends of the mounting plate 7 through the sealing plate 8, and then adheres the spliced ​​tempered glass panel 4 to the outside of the film 3 to form a complete photovoltaic module. The device is simple to install and disassemble, and through the setting of the filter 5, it can filter out infrared light with a wavelength above 0.8μm without affecting the sunlight with a wavelength below 0.8μm passing through the tempered glass panel 4 to irradiate the photovoltaic cell 1.

[0039] The specific embodiments of the present invention described above do not limit the scope of protection of the present invention. Any other corresponding changes and modifications made based on the technical concept of the present invention should be included in the scope of protection of the claims of the present invention.

Claims

1. A photovoltaic module with a filter, characterized in that: include; A plurality of photovoltaic cells, wherein adjacent photovoltaic cells are connected by interconnection strips, and the plurality of photovoltaic cells form a battery pack, wherein an adhesive film is disposed on the periphery of the battery pack; A tempered glass panel, wherein the tempered glass panel is bonded to the adhesive film; A filter is connected to the tempered glass panel via a connecting mechanism.

2. A photovoltaic module with a filter according to claim 1, characterized in that: The adhesive film is an EVA adhesive film.

3. A photovoltaic module with a filter according to claim 1, characterized in that: The filter can have a filter length a, and a>0.8 μm.

4. A photovoltaic module with a filter according to claim 1, characterized in that: The connection mechanism comprises two mounting plates and two sealing plates; the mounting plates are arranged on both sides of the tempered glass panel and the filter, and the sealing plates are respectively arranged at both ends of the two mounting plates.

5. A photovoltaic module with a filter according to claim 4, characterized in that: The mounting plate is a bow-shaped plate body, and is provided with a first accommodating cavity for placing the filter and a second accommodating cavity for placing the tempered glass panel; an air layer is provided between the first accommodating cavity and the second accommodating cavity.

6. A photovoltaic module with a filter according to claim 5, characterized in that: A recessed cavity is formed on the outer side of the mounting plate, positioning blocks are provided at both ends of the recessed cavity, positioning holes are formed on the positioning blocks, and the sealing plate is clamped in the positioning holes.

7. A photovoltaic module with a filter according to claim 6, characterized in that: Notches are provided on both sides of the sealing plate, a transverse plate is installed in the notch, and a positioning rod matched with the positioning hole is provided on the transverse plate.

8. A photovoltaic module with a filter according to claim 7, characterized in that: A first sealing block for sealing the first accommodating cavity and a second sealing block for sealing the second accommodating cavity are respectively fixed to a side of the sealing plate facing the mounting plate.

9. A photovoltaic module with a filter according to claim 7, characterized in that: A protrusion for sealing the air layer is arranged in the middle of the sealing plate.

10. A photovoltaic module with a filter according to claim 7, characterized in that: The mounting plate and the sealing plate are both plastically deformable plates.

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