Ultrathin reinforced glass plate for photovoltaic module and photovoltaic cell panel thereof

Abstract

The utility model relates to the technical field of photovoltaic modules, and discloses an ultra-thin reinforced glass plate for a photovoltaic module and a photovoltaic cell panel thereof, the ultra-thin reinforced glass plate for the photovoltaic module comprises photovoltaic glass, a tempered film is attached to one side of the photovoltaic glass, the projection of the tempered film and the projection of the photovoltaic glass in the thickness direction of the tempered film completely coincide, and the thickness of the tempered film is larger than that of the photovoltaic glass. A buffer strip is attached to the periphery of the side, away from the photovoltaic glass, of the tempered film, the thickness of the photovoltaic glass ranges from 0.8 mm to 1.2 mm, the thickness of the tempered film ranges from 0.1 mm to 0.3 mm, and the thickness of the buffer strip ranges from 0.2 mm to 0.4 mm. According to the ultra-thin reinforced glass plate for the photovoltaic module and the photovoltaic cell panel thereof, the strength of the photovoltaic glass and the tempered film after being compounded is greatly improved, and the thickness of the photovoltaic glass can be reduced on the original basis, so that the thickness of the ultra-thin reinforced glass plate for the photovoltaic module is reduced; the weight of the ultrathin reinforced glass plate for the photovoltaic module is also reduced, the transportation cost is also reduced, and the disassembly and assembly of the photovoltaic cell panel are more convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to photovoltaic module field, more specifically, it relates to photovoltaic module is with ultrathin reinforced glass board and photovoltaic cell panel. BACKGROUND

[0002] The photovoltaic double glass module, also known as a double-sided double glass module, is a photovoltaic cell panel composed of two glass plates and a composite layer of photovoltaic cell pieces. When sunlight is directly incident on the front side of the double glass module, photovoltaic cells absorb photons and convert them into electrons. These electrons then pass through the internal circuit of the panel to the external circuit, forming an electric current that drives electrical or stored energy. The back side of the double glass module generates electricity by absorbing reflected and scattered light from the ground, buildings, or other objects. These reflected and scattered light can also be absorbed by photovoltaic cells and converted into electrical energy when they reach the back side of the module.

[0003] To protect the photovoltaic cell pieces, the thickness of the glass plates is usually relatively thick. For example, for photovoltaic cell pieces with two layers of glass plates of the same thickness, the thickness of the glass plates is usually between 2 and 3.2 mm. The assembled photovoltaic cell panel is heavy, resulting in high transportation costs and inconvenience in disassembly. SUMMARY

[0004] The utility model aims at overcoming the defects in the prior art and providing an ultrathin reinforced glass plate for photovoltaic modules with high strength, thin thickness, and light weight, as well as a photovoltaic cell panel.

[0005] To achieve the above-mentioned purpose, the technical solution of the utility model provides an ultrathin reinforced glass plate for photovoltaic modules, which includes a photovoltaic glass. One side of the photovoltaic glass is attached with a tempered film. The projection of the tempered film along the thickness direction of itself is completely coincident with the photovoltaic glass. A buffer strip is attached around the side of the tempered film away from the photovoltaic glass. The thickness of the photovoltaic glass is 0.8-1.2 mm. The thickness of the tempered film is 0.1-0.3 mm. The thickness of the buffer strip is 0.2-0.4 mm.

[0006] The photovoltaic glass and the tempered film are combined, the strength of the photovoltaic glass is greatly improved, the thickness of the photovoltaic glass can be reduced on the basis, thereby the thickness of the super-thin reinforced glass plate for photovoltaic module is reduced, the weight of the super-thin reinforced glass plate for photovoltaic module is also reduced, the transportation cost is also reduced, the photovoltaic cell panel is more convenient to disassemble and assemble, the photovoltaic glass is protected by the tempered film, the strength of the photovoltaic glass is improved, meanwhile, the photovoltaic glass is prevented from being scratched, the light transmittance of the super-thin reinforced glass plate for photovoltaic module is ensured, the direct influence of external force on the tempered film and the photovoltaic glass is reduced by the buffer belt, the thickness of the photovoltaic glass can be further reduced, and the service life of the super-thin reinforced glass plate for photovoltaic module is improved by the buffer belt.

[0007] Preferably, the tempered film is made of high-aluminum glass, and the tempered film is bonded to the photovoltaic glass by AB glue, OCA glue or resin glue.

[0008] Preferably, the tempered film is coated with a first anti-reflection film on the side close to the buffer belt. In this way, when light is incident on the tempered film, the first anti-reflection film can reduce the reflection of light, so that more light can penetrate the tempered film.

[0009] Preferably, the photovoltaic glass is coated with a second anti-reflection film on the side close to the tempered film. In this way, when light penetrates the tempered film and is incident on the surface of the photovoltaic glass close to the tempered film, the second anti-reflection film can reduce the reflection of light, so that more light can enter the photovoltaic glass.

[0010] Preferably, the photovoltaic glass is coated with a third anti-reflection film on the side away from the tempered film. In this way, when light enters the photovoltaic glass and is incident on the surface of the photovoltaic glass away from the tempered film, the third anti-reflection film can reduce the reflection of light, so that more light can penetrate the photovoltaic glass, so that the photovoltaic cell piece can receive more light, thereby improving the power generation efficiency of the photovoltaic cell piece.

[0011] Preferably, the thickness of the first anti-reflection film, the second anti-reflection film and the third anti-reflection film is between 100-130nm. In this way, by accurately controlling the film thickness, the reflectivity of light in a specific wavelength range can be minimized, thereby improving the light transmittance of light.

[0012] Preferably, the photovoltaic glass is super-white calendaring glass. In this way, the photovoltaic glass has better light transmission effect, which is conducive to improving the photoelectric conversion efficiency of the photovoltaic cell piece.

[0013] As preferred, the cross section of the buffer belt is a mesh-like fiber structure, and the buffer belt comprises a plurality of continuous and interwoven fiber linear bodies. With such a design, the buffer belt has better buffering performance.

[0014] As preferred, the fiber linear body is a hollow cross-section fiber. With such a design, the weight of the buffer belt can be reduced on the basis of ensuring that the buffer belt has good buffering performance, thereby reducing the weight of the ultra-thin reinforced glass plate for photovoltaic modules.

[0015] A photovoltaic cell panel comprises the ultra-thin reinforced glass plate for photovoltaic modules and photovoltaic cell pieces, and the ultra-thin reinforced glass plate for photovoltaic modules is provided in two groups, and the two groups of the ultra-thin reinforced glass plate for photovoltaic modules are respectively arranged on two sides of the photovoltaic cell pieces.

[0016] The photovoltaic component ultra-thin reinforced glass plate and the photovoltaic cell panel have the advantages that:

[0017] The photovoltaic component ultra-thin reinforced glass plate and the photovoltaic cell panel have the advantages that: BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a schematic view of the overall structure of the photovoltaic component ultra-thin reinforced glass plate;

[0019] Figure 2 is an enlarged view of the structure at A in FIG. 1; Figure 1

[0020] Figure 3 is a schematic view of the main cross-sectional view of the photovoltaic component ultra-thin reinforced glass plate;

[0021] Figure 4 is a schematic view of the cross section of the buffer belt;

[0022] Figure 5 is a schematic view of the three-dimensional structure of the photovoltaic cell panel;

[0023] Figure 6 is a schematic view of the main cross-sectional view of the photovoltaic cell panel;

[0024] ​Figure 7 yes Figure 6 Enlarged view of the structure at point B.

[0025] In the diagram: 1. Photovoltaic glass; 2. Tempered glass film; 3. Buffer strip; 4. First antireflective film; 5. Second antireflective film; 6. Third antireflective film; 7. Fiber filament; 8. Photovoltaic cell. Detailed Implementation

[0026] The subject matter described herein will now be discussed with reference to exemplary embodiments. It should be understood that these embodiments are discussed to enable those skilled in the art to better understand and implement the subject matter described herein. Changes may be made to the function and arrangement of the elements discussed without departing from the scope of this specification. Various processes or components may be omitted, substituted, or added as needed in the examples. Furthermore, features described in some examples may be combined in other examples.

[0027] To better understand this utility model, the following is in conjunction with... Figures 1-7 The present invention provides a detailed description of the ultra-thin reinforced glass plate for photovoltaic modules and its photovoltaic cell panel.

[0028] Example 1:

[0029] like Figure 1 As shown, an ultra-thin reinforced glass sheet for photovoltaic modules includes: photovoltaic glass 1, a tempered film 2 attached to one side of the photovoltaic glass 1, the tempered film 2 being completely superimposed on the projection of the photovoltaic glass 1 along its own thickness direction, and a buffer strip 3 attached around the side of the tempered film 2 away from the photovoltaic glass 1. The thickness of the photovoltaic glass 1 is 0.8-1.2mm, the thickness of the tempered film 2 is 0.1-0.3mm, and the thickness of the buffer strip 3 is 0.2-0.4mm.

[0030] It should be noted that the tempered film 2 and the photovoltaic glass 1 are completely overlapped along their own thickness direction. That is, the tempered film 2 completely covers one side surface of the photovoltaic glass 1. The photovoltaic glass 1 and the tempered film 2 form a composite structure, which greatly increases the strength of the photovoltaic glass 1. The tempered film 2 can also protect the photovoltaic glass 1 and prevent it from being scratched. Moreover, the tempered film 2 itself is not easily scratched, ensuring that the light transmittance of the ultra-thin reinforced glass sheet used in photovoltaic modules is not affected.

[0031] When the buffer strip 3 contacts the external mounting bracket, the force will not be directly transmitted to the tempered film 2 and the photovoltaic glass 1 when the external mounting bracket is subjected to force. The buffer strip 3 will first play a buffering role, reduce the impact force, and disperse the external force, thereby reducing the impact of the external force on the tempered film 2 and the photovoltaic glass 1, thus protecting the tempered film 2 and the photovoltaic glass 1 and improving the service life of the ultra-thin reinforced glass sheet for photovoltaic modules.

[0032] In the embodiment, the thickness of the photovoltaic glass 1 is 1.2 mm, the thickness of the tempered film 2 is 0.1 mm, the thickness of the buffer strip 3 is 0.3 mm, and the thickness of the photovoltaic module super-thin reinforced glass plate formed is 1.6 mm. The photovoltaic glass 1 has a large thickness, and the tempered film 2 has a small thickness. The photovoltaic module super-thin reinforced glass plate formed has good light transmittance and meets the strength composite preset requirements.

[0033] By using the photovoltaic module super-thin reinforced glass plate, the strength of the photovoltaic glass 1 and the tempered film 2 after being combined is greatly improved. The thickness of the photovoltaic glass 1 can be reduced on the original basis, thereby reducing the thickness of the photovoltaic module super-thin reinforced glass plate. The weight of the photovoltaic module super-thin reinforced glass plate is also reduced, and the transportation cost is also reduced. The photovoltaic cell panel is also more convenient to disassemble and assemble. The tempered film 2 protects the photovoltaic glass 1. The strength of the photovoltaic glass 1 is improved, and the photovoltaic glass 1 is also prevented from being scratched. The light transmittance of the photovoltaic module super-thin reinforced glass plate is ensured. The buffer strip 3 can reduce the direct influence of external force on the tempered film 2 and the photovoltaic glass 1. The thickness of the photovoltaic glass 1 can be further reduced. The setting of the buffer strip 3 is beneficial to improving the service life of the photovoltaic module super-thin reinforced glass plate.

[0034] Embodiment 2:

[0035] As an optimization of embodiment 1, as shown in Figures 1-3 The tempered film 2 is made of high-aluminum glass. The tempered film 2 is bonded to the photovoltaic glass 1 by AB glue, OCA glue or resin glue. The photovoltaic glass 1 is super-white calendaring glass.

[0036] The tempered film 2 is coated with a first anti-reflective film 4 on the side close to the buffer strip 3. The photovoltaic glass 1 is coated with a second anti-reflective film 5 on the side close to the tempered film 2. The photovoltaic glass 1 is coated with a third anti-reflective film 6 on the side away from the tempered film 2. The thicknesses of the first anti-reflective film 4, the second anti-reflective film 5 and the third anti-reflective film 6 are all between 100-130 nm.

[0037] It should be noted that high-aluminum glass has high strength, and high-aluminum glass has good light transmittance and chemical stability. The light transmittance of AB glue, OCA glue and resin glue is good. The tempered film 2 made of high-aluminum glass is bonded to the photovoltaic glass 1 by AB glue, OCA glue or resin glue. The connection strength of the tempered film 2 and the photovoltaic glass 1 can be ensured, and the tempered film 2 has high light transmittance.

[0038] The first anti-reflection film 4 is coated on the side of the toughened film 2 close to the buffer zone 3. When light is incident on the toughened film 2, the first anti-reflection film 4 can reduce the reflection of light, so that more light can penetrate the toughened film 2. The second anti-reflection film 5 is coated on the side of the photovoltaic glass 1 close to the toughened film 2. When light penetrates the toughened film 2 and is incident on the surface of the photovoltaic glass 1 close to the toughened film 2, the second anti-reflection film 5 can reduce the reflection of light, so that more light can enter the photovoltaic glass 1. The third anti-reflection film 6 is coated on the side of the photovoltaic glass 1 away from the toughened film 2. When light enters the photovoltaic glass 1 and is incident on the surface of the photovoltaic glass 1 away from the toughened film 2, the third anti-reflection film 6 can reduce the reflection of light, so that more light can penetrate the photovoltaic glass 1, so that the photovoltaic cell 8 can receive more light, thereby improving the power generation efficiency of the photovoltaic cell 8. By precisely controlling the film thickness, the reflectivity of light in a specific wavelength range can be minimized, thereby improving the light transmittance of light.

[0039] The photovoltaic glass 1 is super white glass produced by a calendering process, so that the photovoltaic glass 1 has high solar transmittance and low absorption. The photovoltaic cell 8 can maximize the absorption of solar energy, greatly improving the photoelectric conversion efficiency of the photovoltaic cell 8. The super white calendered glass has good anti-mildew and anti-aging ability, and is durable.

[0040] In this embodiment, the materials of the first anti-reflection film 4, the second anti-reflection film 5 and the third anti-reflection film 6 are all silicon nitride. The toughened film 2 is adhered to the photovoltaic glass 1 by OCA glue. Compared with AB glue and resin glue, OCA glue has better light transmittance. The full light transmittance of high-quality OCA glue can exceed 99%.

[0041] Both sides of the toughened film 2 are hardened by nano-electroplating coating. The anti-scratch and anti-impact capabilities of the toughened film 2 are further enhanced. Specifically, the cleaned toughened film 2 is immersed in a prepared metal salt solution. Nano-particles are deposited on the surfaces of both sides of the toughened film 2 by electroplating technology. After electroplating, solidification treatment is performed by ultraviolet irradiation to form a chemical bond between the nano-particles and the surface of the toughened film 2, thereby increasing the hardness of the toughened film 2.

[0042] Embodiment 3:

[0043] As an optimization of embodiment 2, as shown in Figure 4 The cross section of the buffer zone 3 is a grid-shaped fiber structure. The buffer zone 3 includes a plurality of continuous and interwoven fiber linear bodies 7. The fiber linear body 7 is a hollow cross-section fiber.

[0044] It should be noted that these fibrous linear bodies 7 form multiple regular or irregular grid units on the cross-section of the buffer band 3. Specifically, these fibrous linear bodies 7 can be solid cross-section fibers, hollow cross-section fibers, or a combination of continuous linear bodies with different fiber diameters. The combination of different fiber diameters can further optimize the performance of the buffer band 3. For example, coarse fibers can undertake the functions of vibration absorption and shape retention, while fine fibers are used to distribute pressure evenly.

[0045] The fiber filaments 7 are hollow cross-section fibers, which can achieve lightweighting and increase the rigidity of the buffer strip 3 at the same weight. When the fiber filaments 7 form a mesh structure, they are connected to each other by melt bonding to ensure the overall stability and durability of the buffer strip 3.

[0046] Example 4:

[0047] As an optimization of any one of Embodiments 1-3, such as Figures 5-7 As shown, this embodiment proposes a photovoltaic panel, including the aforementioned ultra-thin reinforced glass plate for photovoltaic modules and photovoltaic cell 8. Two sets of ultra-thin reinforced glass plates for photovoltaic modules are provided, and the two sets of ultra-thin reinforced glass plates for photovoltaic modules are respectively disposed on both sides of the photovoltaic cell 8.

[0048] It should be noted that the two sets of ultra-thin reinforced glass panels for photovoltaic modules are symmetrically arranged on both sides of the photovoltaic cell 8, and the photovoltaic glass 1 of the two sets of ultra-thin reinforced glass panels for photovoltaic modules is respectively attached to the upper and lower sides of the photovoltaic cell 8.

[0049] The embodiments of the utility model have been described above with reference to the accompanying drawings. However, the embodiments are not limited to the specific implementation methods described above. The specific implementation methods described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the embodiments without departing from the spirit of the embodiments and the scope of protection of the claims, and all of these forms are within the protection scope of the embodiments.

Claims

1. An ultra-thin reinforced glass sheet for photovoltaic modules, characterized in that, The application relates to a photovoltaic glass (1) which is attached with a tempered film (2) on one side, the tempered film (2) is completely overlapped with the projection of the photovoltaic glass (1) along the thickness direction of the tempered film (2), the tempered film (2) is attached with a buffer band (3) on the side away from the photovoltaic glass (1), the thickness of the photovoltaic glass (1) is 0.8-1.2 mm, the thickness of the tempered film (2) is 0.1-0.3 mm, and the thickness of the buffer band (3) is 0.2-0.4 mm. The material of the tempered film (2) is high-aluminum glass, and the tempered film (2) is bonded with the photovoltaic glass (1) through AB glue, OCA glue or resin glue.

2. The super-thin reinforced glass panel for photovoltaic modules according to claim 1, characterized in that, The tempered film (2) is plated with a first anti-reflection film (4) on the side close to the buffer band (3).

3. The super-thin reinforced glass panel for photovoltaic modules according to claim 2, characterized in that, The photovoltaic glass (1) is plated with a second anti-reflection film (5) on the side close to the tempered film (2).

4. The super-thin reinforced glass panel for photovoltaic modules according to claim 3, characterized in that, The photovoltaic glass (1) is plated with a third anti-reflection film (6) on the side away from the tempered film (2).

5. The super-thin reinforced glass panel for photovoltaic modules according to claim 4, characterized in that, The thickness of the first anti-reflection film (4), the second anti-reflection film (5) and the third anti-reflection film (6) is between 100-130 nm.

6. The super-thin reinforced glass panel for photovoltaic modules according to claim 5, characterized in that, The photovoltaic glass (1) is super-white calender glass.

7. The ultra-thin solar module reinforced glass pane according to claim 1, characterized in that, The cross section of the buffer band (3) is a grid-shaped fiber structure, and the buffer band (3) comprises a plurality of continuous and interwoven fiber linear bodies (7).

8. The ultra-thin solar module reinforced glass pane according to claim 1, characterized in that, The fiber linear body (7) is a hollow cross-section fiber.

9. The super-thin reinforced glass panel for photovoltaic modules according to claim 8, characterized in that, The application further relates to a photovoltaic module which comprises the ultrathin reinforced glass plate and photovoltaic cell pieces (8) as claimed in any one of claims 1-9, and the ultrathin reinforced glass plate is provided in two groups, and the two groups of the ultrathin reinforced glass plate are arranged on the two sides of the photovoltaic cell pieces (8) respectively.

10. A photovoltaic cell panel characterized by, ​

Images