CN201699027U - A kind of solar photovoltaic coating component - Google Patents

Abstract

The utility model relates to a solar photovoltaic film coating assembly, which has simple structure and can make more solar light reach a silicon chip for improving the photoelectric transformation efficiency of a solar battery. The solar photovoltaic film coating assembly comprises film coating toughened glass, an EVA glue film, a solar battery chip, an EVA glue film and a TPT back film which are sequentially arranged from top to bottom and are formed by vacuum lamination gluing, wherein the film coating toughened glass adopts the surface nanometer film coating treatment, and realizes the anti-reflection and self-cleaning function after the film coating treatment. Compared with the existing special solar photovoltaic glass with the transmittance of 91.7 percent, the film coating toughened glass in the utility model improves the transmittance by more than 1.5%, and in addition, the actual use quality of the assembly can be ensured, so the photoelectric transformation efficiency of the assembly can be further improved.

Description

A kind of solar photovoltaic coating component

technical field

The utility model relates to a solar power generation device, in particular to a solar photovoltaic coating component.

Background technique

In the prior art, the photoelectric conversion of solar energy in solar cell modules is generally realized through the absorption of solar energy spectrum by silicon wafers. With the improvement of process technology, the photoelectric conversion efficiency of silicon wafers has reached the limit, and it is difficult to further improve it. How to improve the light transmittance of the glass substrate used as the cover material in the solar cell module, so that more solar light can reach the silicon wafer and be absorbed, thereby improving the photoelectric conversion efficiency, has become a key issue that people pay attention to in this field .

Contents of the invention

The technical problem to be solved by the utility model is to provide a solar photovoltaic coating assembly with a simple structure, which can allow more solar light to reach the silicon chip, so as to improve the photoelectric conversion efficiency of the solar cell.

In order to solve the above-mentioned technical problems, the utility model provides a solar photovoltaic coating assembly, including: coated tempered glass, EVA film, solar cells, EVA film and TPT back film arranged up and down in sequence and glued together by vacuum lamination.

Further, the solar photovoltaic coating assembly also includes an aluminum frame, which is a rectangular frame formed by splicing a pair of short sides and a pair of long sides.

Further, each joint corner of the aluminum frame is provided with a plurality of drain holes punched and formed by a mold at one time, and one side of the punched material of the drain holes is connected to the drain holes, so as to facilitate rapid water drain. Through the design of the drain hole, rainwater leakage can be prevented, which ensures the reliability and service life of the component.

Further, the surface of the aluminum frame has an oxide layer formed by sandblasting and anodizing, so as to prevent the aluminum frame from being corroded by chemical substances and ensure the service life. the

Further, the end of the long side is provided with a plug-in slot, and the end of the short side is provided with a plug-in strip for inserting into the plug-in slot, and a silica gel or a silica gel strip is provided in the plug-in slot, so as to To prevent the component from loosening and falling off at the splicing part of the short side and the long side of the aluminum frame during repeated thermal expansion and contraction.

The utility model has positive effects: (1) The coated tempered glass in the utility model adopts surface nano-coating treatment, which can achieve the function of anti-reflection and self-cleaning after the coating treatment. Compared with the light transmittance (91.7%) of the existing solar photovoltaic special glass, the light transmittance of the coated tempered glass in the utility model is increased by more than 1.5%, and at the same time, it can ensure the actual use quality of the components, thereby further improving the components. photoelectric conversion efficiency. (2) The combined aluminum frame photovoltaic module is one of the main components of the photovoltaic power generation system. The aluminum frame in the utility model has the functions of preventing rainwater leakage, windproof, quick connection of cables, grounding of the module frame, ventilation on the back of the module, and convenient installation. features.

Description of drawings

In order to make the content of the utility model easier to understand clearly, the utility model will be further described in detail according to the specific embodiments below in conjunction with the accompanying drawings, wherein

Fig. 1 is the front structure schematic diagram of the solar photovoltaic coating assembly in the embodiment;

Fig. 2 is the back structure schematic diagram of described solar photovoltaic coating assembly;

Fig. 3 is the A-A sectional view of above-mentioned Fig. 2;

Fig. 4 is the electrical schematic diagram of the solar photovoltaic coating assembly in the embodiment;

Fig. 5 is a partially exploded structure diagram of the aluminum frame of the solar photovoltaic coating assembly in the embodiment.

Detailed ways

Referring to FIGS. 1-5 , the solar photovoltaic coating assembly of this embodiment includes a photovoltaic panel 8 and an aluminum frame 7 for fixing the photovoltaic panel 8 .

The photovoltaic panel 8 includes: a coated tempered glass 1 , an EVA film 2 , a solar cell 3 , an EVA film 4 and a TPT back film 5 arranged up and down in sequence and glued together by vacuum lamination.

The use of coated tempered glass 1 not only improves the photoelectric conversion efficiency of the module itself under the same manufacturing conditions, but also has better transparency in the actual use process compared with ordinary modules due to the good self-cleaning of the film itself. light rate.

A junction box 6 is provided on the back of the photovoltaic panel 8 , and the circuit principle of the junction box 6 is shown in FIG. 4 .

The aluminum frame is a rectangular frame spliced by a pair of short sides 72 and a pair of long sides 71 . The end of the long side 71 is provided with a plug-in groove, and the end of the short side 72 is provided with a plug-in strip 74 for inserting into the plug-in slot, and a silica gel or a silica gel strip is provided in the plug-in slot, It is used to make the insertion strip 74 fixedly connected with the insertion slot. The silicone or silicone strip is suitable for thermal expansion and contraction with the component, which can prevent the splicing part of the short side and long side of the aluminum frame from loosening and falling off.

Each corner of the aluminum frame 7 is provided with a plurality of drain holes 73 formed by stamping once by a mold, and one side of the stamping material of the drain holes 73 is connected to the drain holes. The surface of the aluminum frame 7 has an oxide layer formed by sandblasting and anodizing. the

Apparently, the above-mentioned embodiments are only examples for clearly illustrating the utility model, rather than limiting the implementation manner of the utility model. For those of ordinary skill in the art, other changes or changes in different forms can be made on the basis of the above description. It is not necessary and impossible to exhaustively list all the implementation manners here. And these obvious changes or variations derived from the spirit of the present utility model are still within the protection scope of the present utility model.

Claims (5)

1. A solar photovoltaic coating module, characterized in that it includes: coated tempered glass (1), EVA adhesive film (2), solar cells (3), EVA adhesive film that are arranged up and down in sequence and glued together by vacuum lamination (4) and TPT back film (5). 2. A solar photovoltaic coating assembly according to claim 1, characterized in that it also includes an aluminum frame (7), which is formed by splicing a pair of short sides (72) and a pair of long sides (71). into a rectangular frame. 3. A solar photovoltaic coating assembly according to claim 2, characterized in that: each corner of the aluminum frame (7) is provided with a plurality of drain holes (73) punched and formed by a mold at one time, and the One side of the stamping material of the water drop hole (73) is connected in the water drop hole. 4. A solar photovoltaic coating assembly according to claim 2 or 3, characterized in that: the surface of the aluminum frame (7) has an oxide layer formed by sandblasting and anodizing. 5. A solar photovoltaic coating assembly according to claim 2 or 3, characterized in that: the end of the long side (71) is provided with an insertion slot, and the end of the short side (72) is provided with a socket for insertion The insertion strip (74) of the insertion slot is provided with silica gel or a silica gel strip in the insertion slot.

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