CN204558486U - A kind of crystalline silicon photovoltaic module - Google Patents

Abstract

The utility model discloses a crystalline silicon photovoltaic module, which comprises a front plate, a cell and a back plate, a PVB layer, an insulating layer and an EVA layer are sequentially arranged between the front plate and the cell, and the cell and the back plate They are connected by an EVA layer, and both the front panel and the back panel are made of polycarbonate. The crystalline silicon photovoltaic module adopts polycarbonate layer instead of glass, and polycarbonate layer replaces the commonly used back sheet. It has strong weather resistance, strong impact resistance, good flame retardancy, temperature resistance and portability. Wide, will not produce yellowing and fogging when exposed to the sun. In addition, the upper and lower sides are polycarbonate layers, which are highly transparent and make the light transmission performance better. PVB can absorb ultraviolet rays and effectively protect materials such as EVA.

Description

A crystalline silicon photovoltaic module

technical field

The utility model relates to the field of solar cell processing, in particular to a crystalline silicon photovoltaic module.

Background technique

As a kind of clean energy, solar energy is being exploited and utilized by countries all over the world. At present, the technology, development and utilization of solar energy are developing rapidly in the world, and the related technologies of solar photovoltaic modules are also greatly improved.

Disadvantages of existing photovoltaic modules: high cost of components, photovoltaic toughened glass is easy to burst due to external force, the backplane is mainly made of polymer materials such as TPT, and the light transmittance is not high. In addition, the thermal conductivity of the TPT backsheet is low and it can spontaneously ignite. When the solar cells cannot conduct heat out in time, there will be safety hazards.

Utility model content

In order to solve the above technical problems, the utility model provides a crystalline silicon photovoltaic module with good light transmission, good heat dissipation effect and safety.

In order to achieve the above object, the utility model adopts the following technical scheme: a crystalline silicon photovoltaic module, including a front plate, a battery sheet and a back plate, and a PVB layer, an insulating layer and an EVA layer are sequentially arranged between the front plate and the battery sheet , the battery sheet and the back plate are connected through an EVA layer, and the front plate and the back plate are both made of polycarbonate.

The insulating layer is made of organosilicon film material.

The utility model has the following advantages: the crystalline silicon photovoltaic module adopts a polycarbonate layer instead of glass, and the polycarbonate layer replaces a commonly used back plate, has strong weather resistance, strong impact resistance, and has good flame retardancy and temperature resistance And portability, wide temperature range, no yellowing and fogging when exposed to sunlight. In addition, the upper and lower sides are polycarbonate layers, which are highly transparent and make the light transmission performance better. PVB can absorb ultraviolet rays and effectively protect materials such as EVA.

Description of drawings

Fig. 1 is a structural representation of the utility model;

In the figure, 1. Front plate, 2. PVB layer, 3. Insulation layer, 4. First EVA layer, 5. Cell sheet, 6. Second EVA layer, 7. Back plate.

Detailed ways

The technical scheme of the utility model will be further described below in conjunction with the accompanying drawings and specific embodiments, but the protection scope of the utility model is not limited thereto.

As shown in Figure 1, a kind of crystalline silicon photovoltaic assembly comprises front plate 1, cell sheet 5 and back sheet 7, and PVB layer 2, insulation layer 3 and the first EVA layer are arranged successively between front sheet 1 and cell sheet 5 4. The battery sheet 5 and the back plate 7 are connected through the second EVA layer 6, and both the front plate 1 and the back plate 7 are made of polycarbonate. Using polycarbonate layer instead of glass, polycarbonate layer replaces the commonly used back plate, which has good flame retardancy, temperature resistance and lightness, the front plate and back plate are both polycarbonate layers, with high transparency, Make the light transmission performance better. PVB can absorb ultraviolet rays and effectively protect materials such as EVA.

The insulating layer 3 is made of organosilicon film material, which can strengthen the electrical insulation strength of the photovoltaic module, and can maintain stable electrical performance even under humidity and high temperature.

Claims (2)

1. a crystalline silicon photovoltaic module, comprises header board, cell piece and backboard, it is characterized in that, be provided with PVB layer, insulating barrier and EVA layer between described header board and cell piece successively, connected between described cell piece and backboard by EVA layer, described header board and backboard are made by Merlon.

2. a kind of crystalline silicon photovoltaic module according to claim 1, is characterized in that, described insulating barrier adopts organosilicon membrane material.