CN201843274U - Solar cell combined roofing tile - Google Patents

Abstract

The utility model provides a solar cell combined roofing tile which is sequentially laminated and packaged by a surface layer, an upper ethylene-vinyl acetate copolymer layer, a solar cell plate, a lower ethylene-vinyl acetate copolymer layer and a back plate, wherein the surface layer is a polytetrafluoroethylene composite film; and the back plate is a calcium silicate plate. The solar cell plate is a monocrystalline silicon, polycrystalline silicon or amorphous silicon solar cell. The surface layer of the solar cell combined roofing tile adopts the polytetrafluoroethylene composite film with high light transmission and ultra-thin property, thereby having impact resistance, being less prone to damages, having heat resistance, low-temperature resistance, corrosion resistance and anti-hail property, and being applicable to various mal-conditions. The back plate adopts the calcium silicate plate, thereby having light weight, high strength, good waterproof effect, excellent fireproof performance, stable performances and ultra-long service life; furthermore, the color of calcium silicate can be changed arbitrarily according to needs and be kept consistent with the color of a building, thereby being more practical and attractive.

Description

Solar cell combined roof tile

technical field

The invention relates to a solar cell, in particular to a solar cell combined roof tile.

Background technique

With the rapid advancement of science and technology, human beings' ability to exploit traditional energy sources such as oil and coal has increased rapidly. At the same time, with the development of human society, the demand for these energy sources is also increasing day by day, and the characteristics of traditional energy sources polluting the environment and being non-renewable determine that human beings must look for clean, green, and renewable new energy sources to replace traditional energy sources, and solar energy is such an energy source one.

At present, solar technology is becoming more and more mature. An important application of solar resource utilization is solar photovoltaic power generation, which converts solar energy into electrical energy to meet the energy needs of lighting and power equipment. An important direction in the application of solar photovoltaics is building integrated photovoltaics, which integrates solar modules with housing construction, such as erecting solar cell modules on the roof of a building. But generally speaking, the roof and roof truss are not suitable for installing conventional solar modules, because the previous solar modules will increase the overall load bearing of the house, and the solar module positioning parts often cause cracks on the roof surface during heavy rain. Solar cell combined roof tiles can solve this problem. They are lighter, do not require trusses for reinforcement, can be completely embedded in traditional roof tiles, and are better waterproof than traditional components. The backsheet layer of the existing solar cell composite roof tile uses TPT material (polyvinyl fluoride composite film), but the impact resistance of TPT is not good, and the waterproof ability is not very good; The effect is good, but the four corners of the tempered glass are fragile after being stressed, and the weight of the tempered glass is relatively large, which cannot meet the requirements of light and portable solar cell combined roof tiles.

Utility model content

The utility model aims at the deficiencies of the above-mentioned prior art, and the technical problem to be solved is: to provide a solar cell combined roof tile which is light, economical, reliable and easy to popularize and apply.

Technical solution of the present invention is:

A solar cell composite roof tile, comprising a surface layer, a solar battery sheet, and a back sheet, wherein the surface layer, the solar cell sheet, and the back sheet are sequentially stacked and packaged from top to bottom; its features are:

An ethylene-vinyl acetate copolymer layer is provided on the front side of the solar cell, and an ethylene-vinyl acetate copolymer layer is provided on the back side of the solar cell;

The surface layer is a polytetrafluoroethylene composite film with high light transmittance, ultra-thin and good chemical stability; the back plate is a calcium silicate board.

The solar cells are monocrystalline silicon, polycrystalline silicon or amorphous silicon solar cells.

The beneficial effects brought by the solar battery combined roof tile of the utility model are:

(1) The surface layer is made of high light transmission and ultra-thin polytetrafluoroethylene composite film, which is impact-resistant and not easy to break. It has heat resistance, low temperature resistance, corrosion resistance and hail resistance, and is suitable for use under various harsh conditions.

(2) The backboard layer is made of calcium silicate board, which has light weight, high strength, good waterproof effect, good fire resistance, stable performance, and long service life; and the color of calcium silicate can be changed arbitrarily according to needs, It can be consistent with the color of the building itself, which is more practical and beautiful.

Description of drawings

Fig. 1 is a three-dimensional exploded view of the utility model.

Among them, 1-surface layer; 2-upper ethylene-vinyl acetate copolymer layer; 3-solar battery sheet; 4-lower ethylene-vinyl acetate copolymer layer; 5-back sheet.

5. Specific implementation

Example 1:

A solar cell combined roof tile is composed of a surface layer 1, an upper ethylene-vinyl acetate copolymer layer 2, a solar battery sheet 3, a lower ethylene-vinyl acetate copolymer layer 4 and a back plate 5 which are sequentially laminated and packaged. The surface layer 1 is a high light-transmitting, ultra-thin polytetrafluoroethylene composite film. The backboard 5 is a calcium silicate board with light weight, high strength and good waterproof effect.

Wherein, the solar cells 3 are monocrystalline silicon solar cells.

Example 2:

It is basically the same as the embodiment 1, except that the solar cells 3 are polycrystalline silicon solar cells.

Example 3:

It is basically the same as Embodiment 1, except that the solar cells 3 are amorphous silicon solar cells.

Claims (2)

1. a solar cell combination roofing tile comprises top layer, solar battery sheet, backboard, and top layer, solar battery sheet, backboard stack gradually from top to bottom and arrange, encapsulate; It is characterized in that:

Establish ethylene-vinyl acetate copolymer layer in the solar battery sheet front, set ethylene-vinyl acetate copolymer layer at the solar cell back face;

Described top layer is a polytetrafluoroethylcomposite composite film; Described backboard is a calcium silicate board.

2. according to the described solar cell combination of claim 1 roofing tile, it is characterized in that: described solar battery sheet is monocrystalline silicon, polysilicon or non-crystal silicon solar cell.