CN205488155U - High -efficient solar cell structure - Google Patents

Abstract

The utility model discloses a high-efficiency solar cell structure, comprising: an alloy frame, a sealed waterproof junction box, and is characterized in that: the sealed waterproof junction box is provided with a PET plastic plate or a TPT composite film, and the PET plastic plate or The TPT composite film is evenly laid on the EVA film one with the same size as the PET plastic plate or the TPT composite film, and the EVA film one is evenly laid on the bottom of the high-efficiency solar cell sheet according to the level. The upper part of the high-efficiency solar cells is laminated on the lower part of the textured tempered glass by laying the EVA adhesive film 2 evenly in layers, and the bottom surface of the textured tempered glass is coated with a reagent layer. Manufactured by new photovoltaic technology and production methods of solar cells, high-quality materials and cash technology make the product have a long service life and stability, high-efficiency solar cell manufacturing, small attenuation, suede, low iron, high transparent tempered glass packaging, reducing The reflection of sunlight maximizes the sunlight absorbed by the components.

Description

A high-efficiency solar cell structure

technical field

The utility model relates to the field of solar cells, in particular to a high-efficiency solar cell structure.

Background technique

Solar cells, also known as "solar chips" or "photovoltaic cells", are photoelectric semiconductor sheets that use sunlight to generate electricity directly. As long as it is illuminated by light, it can output voltage instantly and generate current when there is a loop. A solar cell is a device that directly converts light energy into electrical energy through the photoelectric effect or photochemical effect. Thin-film solar cells that work on the photoelectric effect are the mainstream, while practical solar cells that work on the photochemical effect are still in their infancy. At present, the existing solar cells (silicon flake solar cells): although the manufacturing process is simple, the consumption of silicon material is large, the manufacturing cost is high, and the conversion efficiency is close to the theoretical limit value, and the further development space is limited. The second-generation solar cell (amorphous silicon thin-film solar cell): the absorption capacity of visible light is 500 times higher than that of crystalline silicon, and the thickness of the cell is on the order of microns. Cheap glass, flexible plastic and stainless steel sheets can be used as substrate materials, which greatly reduces the cost of production. cost, save silicon material, and can also be made into large-area battery panels according to needs, but the conversion efficiency is only (6-10)%, and the highest efficiency of the best dye-sensitized battery can only reach 11%.

Utility model content

The purpose of this utility model is to provide a high-efficiency solar cell structure to solve the problems raised in the above-mentioned background technology.

In order to achieve the above object, the utility model provides a high-efficiency solar cell structure with the following technical solution, including: an alloy frame, a sealed waterproof junction box, the sealed waterproof junction box is provided with a PET plastic plate or a TPT composite film, and the PET The plastic board or the TPT composite film is evenly laid with an EVA film one of the same size as the PET plastic plate or the TPT composite film, and the EVA film one is evenly laid on the high-efficiency solar cell sheet according to the level. Bottom, the upper part of the high-efficiency solar cell sheet is evenly laid on the lower part of the textured tempered glass through the EVA adhesive film 2 according to the level, and the bottom surface of the textured tempered glass is coated with a reagent layer.

Preferably, the high-efficiency solar cells are 6-12 photovoltaic cells connected in series to form a photovoltaic cell string, and a group of the photovoltaic cell strings are connected together to form a module string.

Preferably, the PET plastic plate or TPT composite film and the surrounding sides and upper frame of the suede tempered glass are uniformly pasted with weather-resistant sealing silica gel, and the surroundings of the high-efficiency solar cells are uniformly pasted There is the weather-resistant sealing silica gel, and the outer side of the weather-resistant sealing silica gel is attached to the alloy frame.

Preferably, the PET plastic plate or the TPT composite film is a polyethylene terephthalate plastic plate or a polyvinyl fluoride composite film, and the alloy frame is an anodized aluminum alloy frame.

Preferably, the PET plastic plate or TPT composite film, the high-efficiency solar cells and the suede tempered glass are embedded in the alloy frame.

Compared with the prior art, the beneficial effects of the utility model are: (1) The utility model adopts the new photovoltaic technology and production means of solar cells to manufacture, high-quality materials and cash technology make the product have a long service life and long-term stability , High-efficiency solar cell manufacturing, small attenuation, suede low-iron high-transparency tempered glass package, reduce sunlight reflection, and maximize solar absorption of components. (2) The excellent back structure of this new type can effectively improve the conversion efficiency of the cell, the uniform anti-reflection film improves the absorption of sunlight in harsh environments, the anodized aluminum alloy frame, and the waterproof junction box ensure better mechanical Strength and waterproof tightness, equipped with bypass diodes, avoiding hot spot losses caused by shadows. The power of solar modules is 5W-300W, which are widely used in off-grid power stations, grid-connected high-voltage systems, microwave communications, forest fire prevention, and high-speed monitoring. Traffic instructions, courtyard and road lighting. (3) The new type has long service life, small attenuation, anti-aging, adopts tempered glass with low iron, high mechanical strength, and high transmittance, and can withstand the impact of wind load, snow load, sandstone, hail machine and other foreign objects under site conditions , and the light transmittance is high, not less than 92%.

Description of drawings

Accompanying drawing 1 is the structural representation of the utility model.

In the figure: 1. Alloy frame, 2. Sealed and waterproof junction box, 3. Weather-resistant sealed silica gel, 4. High-efficiency solar cells, 5. PET plastic plate or TPT composite film, 6. Suede tempered glass, 7. EVA film 1. 8. EVA film 2.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to Figure 1, the utility model provides a technical solution: a high-efficiency solar cell structure, including: an alloy frame 1, a sealed waterproof junction box 2, and a PET plastic plate or TPT composite film 5 on the sealed waterproof junction box 2, PET On the plastic plate or TPT composite film 5, EVA adhesive film-7 of the same size as PET plastic plate or TPT composite film 5 is laid evenly according to the level, and the EVA adhesive film-7 is evenly laid on the bottom of the high-efficiency solar cell sheet 4 according to the level , the upper part of the high-efficiency solar battery sheet 4 is laid on the lower part of the textured tempered glass 6 evenly according to the layers through the EVA adhesive film 28, and the bottom surface of the textured tempered glass 6 is coated with a reagent layer, and the high-efficiency solar cell sheet 4 is 6-12 Photovoltaic cells are connected in series to form a photovoltaic cell string, a group of photovoltaic cell strings are connected together to form a module string, and the PET plastic plate or TPT composite film 5 and the suede tempered glass 6 are evenly pasted on the surrounding sides and the upper frame surface There is weather-resistant sealing silica gel 3, and the high-efficiency solar cells 4 are evenly pasted with weather-resistant sealing silica gel 3, the outer side of the weather-resistant sealing silica gel 3 is bonded to the alloy frame 1, and the PET plastic plate or TPT composite film 5 is polyethylene terephthalic acid Plastic plate or polyvinyl fluoride composite film, alloy frame 1 is an anodized aluminum alloy frame, PET plastic plate or TPT composite film 5, high-efficiency solar cells 4 and suede tempered glass 6 are embedded in the alloy frame frame.

Working principle: High-efficiency solar cells are manufactured, with small attenuation, suede surface, low iron, high-transparency tempered glass package, which reduces the reflection of sunlight and maximizes the absorption of sunlight by the module. The back structure can effectively improve the conversion efficiency of the cell. The uniform anti-reflection film improves the absorption of sunlight in harsh environments, the anodized aluminum alloy frame 1, and the waterproof junction box 2 ensure good mechanical strength and waterproof sealing, and are equipped with bypass diodes to avoid the damage caused by shadows Hot spot loss.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes and modifications can be made to these embodiments without departing from the principle and spirit of the present invention , replacements and modifications, the scope of the present utility model is defined by the appended claims and their equivalents.

Claims (5)

1. a high performance solar batteries structure, including: alloy frame (1), seal waterproof junction box (2), it is characterized in that: there is on described sealing waterproof junction box (2) PET plate or TPT composite membrane (5), it is laid with the EVA adhesive film one (7) with described PET plate or TPT composite membrane (5) comparable size according to even layers on described PET plate or TPT composite membrane (5), described EVA adhesive film one (7) is according to the bottom of high performance solar batteries sheet (4) that are laid in of even layers, fitted according to matte safety glass (6) bottom that is laid in of even layers by EVA adhesive film two (8) in the top of described high performance solar batteries sheet (4), the lower surface of described matte safety glass (6) scribbles one layer of reagent layer.

High performance solar batteries structure the most according to claim 1, it is characterized in that: described high performance solar batteries sheet (4) is that the series connection of 6-12 photovoltaic cell gets up to form photovoltaic cell string, and the photovoltaic cell string described in a group links together constituent components string.

High performance solar batteries structure the most according to claim 1 and 2, it is characterized in that: described PET plate or TPT composite membrane (5) and the surrounding side of described matte safety glass (6) and position, upper box face are pasted with weather-proof sealing silica gel (3) uniformly, the surrounding of described high performance solar batteries sheet (4) is pasted with described weather-proof sealing silica gel (3) uniformly, fits with described alloy frame (1) in the outside of described weather-proof sealing silica gel (3).

4. according to claim 1 or described high performance solar batteries structure, it is characterized in that: described PET plate or TPT composite membrane (5) are poly terephthalic acid class plastic plate or polyvinyl fluoride composite membrane, described alloy frame (1) is anodized aluminum alloy frame.

High performance solar batteries structure the most according to claim 1 and 2, is characterized in that: described PET plate or TPT composite membrane (5), described high performance solar batteries sheet (4) and described matte safety glass (6) are embedded in described alloy frame framework.