CN202651162U - Light-transmitting double-surface cell double-layer glass photosensitive battery assembly - Google Patents

Abstract

The utility model relates to a solar battery assembly and particularly relates to a light-transmitting double-surface cell double-layer glass photosensitive battery assembly. The light-transmitting double-surface cell double-layer glass photosensitive battery assembly is characterized in that the battery assembly sequentially comprises a top surface layer (1), a first upper packaging layer (2), a first solar cell layer (3), a lower packaging layer (4), a second solar cell layer (5), a second upper packaging layer (6) and a bottom surface layer (7); the positive pole and the negative pole of the output end of the first solar cell layer (3) are respectively connected with the negative pole and the positive pole of the output end of the second solar cell layer (5) to serve as a general output end. By adopting the battery assembly of the utility model, tracking type photovoltaic power generation can be realized, no external power supply is needed, the cost and protective measures of laying commercial power grid can be omitted, an ordinary signal-surface photosensitive assembly can be replaced, materials can be saved and properties of environmental protection, safety and no pollution and the like are provided.

Description

Light-transmitting double-sided cell double-layer glass photosensitive cell module

technical field

The utility model relates to a solar battery assembly, in particular to a light-transmitting double-sided battery double-layer glass photosensitive battery assembly.

Background technique

In order to realize the sustainable development of human society, the whole world has turned its attention to solar photovoltaic power generation. At present, most of the solar power generation devices used in the market are mainly fixed brackets, and a small amount of tracking devices are used, but all of them use external power sources (that is, connected It is difficult to develop the photovoltaic industry in remote mountainous areas and areas without electricity. However, the low power generation of fixed brackets seriously damages the land vegetation. The light-transmitting double-sided battery double-layer glass photosensitive cell module is It integrates the improvement of sunlight utilization rate, is suitable for areas without electricity, and is beneficial to vegetation restoration.

At present, the packaging structure adopted by solar cell modules used for photosensitive components in the market is: glass-EVA (ethylene-vinyl acetate copolymer)-solar cell sheet-EVA-bottom plate material (including TPT weather-resistant composite fluoroplastic film, tempered Glass, transparent or translucent PVC film) are laminated and packaged, but the bottom plate is packaged with TPT and cannot transmit light.

Utility model content

The purpose of this utility model is to provide a light-transmitting double-sided battery double-layer glass photosensitive cell assembly. Both sides of the assembly can transmit light so that it has the function of outputting different electrical signals according to the position of the sun and can be used to judge the position of the sun.

A light-transmitting double-sided cell double-layer glass photosensitive cell assembly, which is special in that: the cell assembly is sequentially composed of a top surface layer, a first upper packaging layer, a first solar battery sheet group layer, a lower packaging layer, a second The second solar cell group layer, the second upper encapsulation layer and the bottom surface layer are composed, and the output terminal positive and negative electrodes of the first solar cell group layer are respectively connected to the output terminal negative and positive electrodes of the second solar cell group layer as the total output terminal.

Wherein the longitudinal and transverse distances between every two solar cells are both 15-20 mm.

Wherein the top surface layer and the bottom surface layer are made of ultra-clear tempered glass, and the thickness of the glass is 2mm-4mm.

The solar cells are crystalline silicon cells, and the solar cells are welded to each other through welding strips.

A sealed and waterproof junction box is installed at the edge of one side of the battery assembly.

The thickness of the first upper encapsulation layer, the second upper encapsulation layer and the lower encapsulation layer are all 0.3-0.8mm, and all adopt double-layer EVA films.

A layer of weather-resistant sealant is coated on the edge of one side of the battery assembly, and an aluminum alloy frame is provided on the outside of the battery assembly, and a sealing tape is provided between the frame and the assembly.

Adopting the battery assembly of the utility model can realize tracking photovoltaic power generation without an external power supply, saves the cost of laying the mains power grid and protective facilities, and can replace ordinary single-sided photosensitive components, saves materials, and is environmentally friendly, safe and pollution-free, etc. characteristic.

Description of drawings

Accompanying drawing 1 is the partial structural representation of the utility model;

Accompanying drawing 2 is the partial sectional view of the utility model;

Accompanying drawing 3 is the layout schematic diagram of the solar cell group used in the utility model.

Detailed ways

As shown in Figures 1, 2, and 3, a light-transmitting double-sided battery double-layer glass photosensitive cell assembly, the battery assembly is sequentially (from top to bottom in Figure 1) from the top surface layer 1, the first upper packaging layer 2. The first solar cell group layer 3, the lower encapsulation layer 4, the second solar cell group layer 5, the second upper encapsulation layer 6 and the bottom surface layer 7, and the output terminal of the first solar cell group layer 3 is positive, The negative pole is respectively connected to the negative and positive poles of the output terminal of the second solar cell group layer 5 as the total output terminal.

As shown in Figures 1, 2, and 3, the vertical and horizontal distances between every two solar cells are 15-20mm, and the top layer 1 and the bottom layer 7 are ultra-clear tempered glass with a thickness of 2mm-4mm. The solar cells are crystalline silicon cells, and the solar cells are welded to each other by welding ribbons.

In addition, a sealed and waterproof junction box 12 is installed at the edge of one side of the battery assembly, a layer of weather-resistant sealant 9 is applied at the edge of one side of the battery assembly, and a frame 11 is provided outside the battery assembly, A sealing tape 10 is provided between the frame 11 and the components. The first upper encapsulation layer 2, the second upper encapsulation layer 6 and the lower encapsulation layer 4 are all 0.3-0.8 mm thick, and all adopt double-layer EVA films.

As shown in Figures 1, 2, and 3, the battery assembly of the present invention is a planar rectangular block structure, which is composed of seven layers of planar materials: top surface layer 1, first upper packaging layer 2, first solar cell Sheet group layer 3 , lower encapsulation layer 4 , second solar cell sheet group layer 5 , second upper encapsulation layer 6 and bottom surface layer 7 . The top surface layer 1 and the bottom surface layer 7 are the outermost protective layers of the solar cell group. Since they face the sunlight, they need to have good light transmission, and need to have a certain hardness and strength. Therefore, the top surface layer 1 of the present utility model And the bottom layer 7 is usually made of ultra-clear tempered glass.

The first solar battery sheet group layer 3 and the second solar battery sheet group layer 5 are the core components of the battery assembly to generate electricity, which can be made of multiple monocrystalline silicon or polycrystalline silicon solar cells according to certain electrical performance technical parameters (voltage U, current, etc.) 1, power P, etc.) requirements, the positive and negative poles of the solar cells are welded by interconnecting tin-coated solder strips and bus bars 8 to form a solar cell group by means of series and parallel connections, the first solar cell group The positive and negative poles of the output terminal of layer 3 are respectively connected to the negative pole and positive pole of the output terminal of layer 5 of the second solar cell group. In this embodiment, 36 battery slices are used in 2x18 series or 18 series. In order to facilitate light transmission, the solar cell Leave a gap of 15 mm between the sheets.

The two upper encapsulation layers and one lower encapsulation layer 4 on the upper and lower sides of the solar cell group all adopt two layers of EVA films. The two upper encapsulation layers and one lower encapsulation layer 4 are both made of a thin film material with good light transmittance, such as anti-aging EVA (ethylene-vinyl acetate copolymer). The packaging material is in a molten state at 140°C. After vacuuming and lamination, the packaging material integrates the top layer 1, the two solar cell group layers and the bottom layer 7. After cooling, five layers of materials are formed. An integrated composite material, that is, a light-transmitting double-sided cell double-layer glass solar cell module.

The top surface layer 1 and the bottom surface layer 7 adopt 2-4mm toughened glass, and the thickness is selected according to the installation area and strength requirements. The utility model can apply weather-resistant sealant 9 on its edge and paste edge sealing tape 10 to enhance its sealing and weather resistance The aluminum alloy frame 11 is easy to install, beautiful and protective. The frame 11 is made of anodized high-quality aluminum alloy material, and the thickness of the aluminum oxide film on its surface is greater than 15 μm. As shown in Figure 3, a junction box 12 is installed on the edge of the battery assembly of the present utility model. The edge is the extraction end of the positive and negative pole connections of the battery pack. 13. It has sealing and waterproof functions, which can prevent the connection end from being corroded and prevent rainwater or condensed water from intruding through the plug to cause a short circuit.

Claims (7)

1. light-transmission type double-side cell double glazing sensitization battery component, it is characterized in that: described battery component is comprised of encapsulated layer (6) and bottom surface layer (7) on encapsulated layer (2), the first solar battery sheet group layer (3), lower encapsulated layer (4), the second solar battery sheet group layer (5), second on the top coat (1), first successively, and the output positive and negative electrode of the first solar battery sheet group layer (3) connects respectively the negative, positive utmost point of output of the second solar battery sheet group layer (5) as total output.

2. light-transmission type double-side cell double glazing sensitization battery component as claimed in claim 1, it is characterized in that: wherein the vertical and horizontal spacing between per two solar battery sheets is 15～20mm.

3. light-transmission type double-side cell double glazing sensitization battery component as claimed in claim 1, it is characterized in that: wherein top coat (1) and bottom surface layer (7) are ultrawhite toughened glass, and thickness of glass is 2mm～4mm.

4. light-transmission type double-side cell double glazing sensitization battery component as claimed in claim 1, it is characterized in that: wherein solar battery sheet is crystal silicon battery, and is welded to each other by welding between the solar battery sheet.

5. light-transmission type double-side cell double glazing sensitization battery component as claimed in claim 1 is characterized in that: the terminal box (12) that water-tight is installed in the edge of described battery component one side.

6. light-transmission type double-side cell double glazing sensitization battery component as claimed in claim 1, it is characterized in that: wherein on first on the encapsulated layer (2), second thickness of encapsulated layer (6) and lower encapsulated layer (4) be 0.3～0.8mm, and all adopt double-deck eva film.

7. light-transmission type double-side cell double glazing sensitization battery component as claimed in claim 1, it is characterized in that: the edge in described battery component one side is coated with one deck weather proofing sealant (9), and be provided with the frame (11) of aluminium alloy in the battery component outside, be provided with a band (10) between frame (11) and the assembly.

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