TWI583008B - The Method and Structure of Inner Panel of Solar Panel with Pattern - Google Patents

Description

Method for fabricating inner layer of solar panel with pattern and structure thereof

The invention relates to a method for fabricating an inner layer of a solar panel with a pattern and a structure thereof, and more particularly to an inner layer manufacturing method and a structural design for improving the color rendering effect of a solar panel having a pattern or a character.

Recently, in order to develop environmentally-friendly energy, the use of solar panels has become one of the most mature and widely used technologies in the development of green energy. Currently, solar panels must be placed in outdoor sunshine. It can achieve the preset power generation efficiency. However, in the land use area of the general metropolitan area, if the user wants to install the solar panel, most of them choose the limited space used by fewer people such as the house or the roof of the building to install solar energy. Panel power generation, however, solar panel power generation must have more space to provide a large amount of power, so how to get enough solar panel space and motivate users to resettle is the technical bottleneck that they want to solve today.

Exploring the reason that today's users are only willing to set up solar panels on the roof, such as the lack of access to the roof, the appearance of the solar panels with dark appearance is mostly unsightly for the appearance of the building, and there is no other appearance selectivity, so the building is greatly reduced. Appearance can set the space of the solar panel, including such as the appearance of the building wall or the location of the glass, but instead choose a more beautiful but not energy-efficient advertising or decorative sheet setting, if the wall of the building can be Or installing a glass part of the space to install solar panels will greatly benefit solar power generation.

Please refer to the package structure of the conventional solar panel 10 which is generally used in FIG. 1 , mainly because the solar panel 10 has a protective layer 11 and an upper solar cell film (EVA) layer 12 from top to bottom. a power generation layer 13, a solar cell film (EVA) layer 12, and a back layer 15, wherein the protective layer 11 is mainly made of a transparent transparent material such as transparent glass or plastic, and the upper and lower solar cells are used. The film layer 12/14 mainly has: 1) UV resistance, moisture and heat oxidation resistance, 2) high light transmittance, 3) stable shrinkage rate, and 4) excellent adhesion, and the back layer 15 is disposed at the bottom. The supporting structure, wherein the upper and lower solar cell film layers 12/14 are non-adhesive and anti-adhesive at normal temperature, and the upper and lower solar cell film layers 12 are heated and pressurized after a certain condition of the solar panel 10 packaging process. /14 will produce fusion bonding and glue-bonding curing, which is a heat-curing hot-melt adhesive film. After curing, the upper and lower solar cell film layers 12/14 become completely transparent, have a relatively high light transmittance, and are cured. Upper and lower solar cell film layer 12/14 It can withstand atmospheric changes and has elasticity. The solar power generation layer 13 wafer is encapsulated and bonded to the upper protective layer 11 and the back layer 15.

Based on the above-mentioned prior art background, the present inventors have developed a "solar panel structure having a pattern" and applied for a patent application No. 103113278, which is mainly characterized by power generation on the substrate. The surface of the layer is coated with a patterned light-transmissive layer, and the light-transmitting layer of the pattern maintains a certain light transmittance, wherein the light penetrates the light-transmitting layer of the pattern to provide sufficient incident light or reflected light reflected by the substrate. Electricity is generated in the power generation layer.

The main function of the solar panel structure having the pattern is to display various patterns or patterns through the pattern of the light transmissive layer, so that the monotonous solar panel can be arbitrarily selected according to the designer's demand under the controllable power generation setting. Designing the pattern to be expressed, and the pattern is not pieced together for the conventional dot matrix, so the near view or the far view has better visual effects, and this technical breakthrough in appearance will promote More users will beautify the solar panels and install them outside more buildings. Even if it is used indoors and outdoors, it not only provides greater environmental protection and energy efficiency, but also maintains the appearance of the building.

However, the patterned light-transmissive layer of the solar panel structure having the pattern is attached to the solar panel, and the color of the solar panel is mainly black, and the black color absorbs light, and also represents the illustrated image. Although the pattern of the solar panel structure has the effect of displaying the pattern, the color of the pattern is also often because the color of the solar panel is black, so that the color of the pattern is greatly reduced, so how to increase the color The presentation is a topic that technology needs to break through again.

In the case of diversified market demand, there is inevitably a partial demand for solar panels to have better power generation in a certain pattern color rendering effect, or better pattern color development on a certain power generation power. The effect is how to produce a better surface color development effect on the design of the pattern light-transmissive layer with the pattern of the solar panel structure, and to control the power generation of the solar panel product, which is another technical problem to be solved. .

The invention relates to a method for fabricating an inner layer of a solar panel with a pattern, the solar panel structure having a protective layer, a first solar cell film layer, a power generation layer, a second solar cell film layer and a back layer The main feature of the present invention is that the inner layer manufacturing method has a step of adding a pattern, and a pattern layer is coated on the inner surface of the protective layer with respect to the direction of the power generation layer; the color enhancement step is Adding color to the first solar cell film layer adhered to the inner surface of the protective layer; forming step of sequentially stacking the protective layer having a patterned layer on the inner surface and a first solar cell film layer from top to bottom A power generation layer, a second solar cell film layer and a back layer are subjected to vacuum hot press forming.

A secondary feature of the present invention is that the pattern layer is a film or a soft light transmissive material, and the pattern is produced by dyeing, coating or attaching colors; the method of color enhancement comprises the first solar cell glue by dyeing or adding a colorant. The film layer produces a color.

10‧‧‧Study solar panel structure

11‧‧‧Protective layer

12‧‧‧Upper solar cell film layer

13‧‧‧Power generation

14‧‧‧ under the solar cell film layer

15‧‧‧ bottom layer

20‧‧‧Solar panel structure

21‧‧‧Protective layer

211‧‧‧ pattern layer

22‧‧‧First solar cell film layer

23‧‧‧Power generation layer

24‧‧‧Second solar cell film layer

25‧‧‧ bottom layer

L‧‧‧Light

Li‧‧‧ incident light

Lr‧‧·reflected light

Figure 1: Schematic diagram of a conventional solar panel structure package.

Figure 2 is a cross-sectional view showing the structure of a solar panel in accordance with a preferred embodiment of the present invention.

Figure 3 is a cross-sectional view showing the structure of a three-dimensional solar panel in accordance with a preferred embodiment of the present invention

Fig. 4 is a cross-sectional view showing the structure of a solar panel according to a preferred embodiment of the present invention.

Referring to FIG. 2 and FIG. 3, in order to enable the solar panel structure having the pattern to have a better image color display effect, the present invention is a protective layer 21 for the solar panel junction 20. The solar panel structure 20 of the present invention has a protective layer 21, a first solar cell film layer 22, a power generation layer 23, and a second solar cell film layer 24. And a back layer 25, and the main technical steps of the present invention are characterized in that: the step of adding a pattern is: adding a pattern layer 211 to the inner surface of the protective layer 21 with respect to the direction of the power generation layer 23, wherein the pattern is The layer 211 is coated on the inner surface of the protective layer 21 by a pattern such as a film or a soft light-transmitting material which can be dyed, coated or attached with color, etc., while maintaining a certain light transmittance.

The color enhancement step is mainly for coloring the first solar cell film layer 22 which is adhered to the inner surface of the protective layer 21, and has a certain light transmittance after color enhancement, and the method for color enhancement comprises using the dyeing or adding the color material to make the solar cell The film layer 22 produces a color.

a forming step of sequentially stacking the protective layer 21 having the patterned layer 211, a first solar cell film layer 22, a power generating layer 23, a second solar cell film layer 24, and the like from the top to the bottom After the backing layer 25 is subjected to vacuum hot press forming.

Referring to the embodiment of the present invention, the solar panel 20 of the present invention has a protective layer 21 having a patterned layer 211 on the inner surface, a first solar cell film layer 22, and a power generation from top to bottom. The layer 23, a second solar cell film layer 24 and a back layer 25, wherein the patterned layer 211 on the inner surface of the protective layer 21 and the first solar cell film layer 22 are formed, the total light transmittance is sufficient After the light L passes through the pattern layer 211 and the first solar cell film layer 22, sufficient light is provided, such as the incident light Li, to drive the power generation layer 23 to generate electric energy, and the first solar cell film layer 22 is transmitted through the first solar cell film layer 22 The color can make the light L enter the characteristic of the reflected light Lr, and the reflected light Lr can be reversely transmitted to increase the color rendering effect of the patterned layer 211.

In summary, the method for fabricating the inner layer of the solar panel having the pattern and the structure thereof and the structure of the first solar cell film layer 22 through the inner layer of the protective layer 21 and the structure of the first solar cell film layer 22 are increased. The 211 color rendering effect of the layer also has the power generation power, and the invention patent application is filed according to law.

20‧‧‧Solar panel structure

21‧‧‧Protective layer

211‧‧‧ pattern layer

22‧‧‧First solar cell film layer

23‧‧‧Power generation layer

24‧‧‧Second solar cell film layer

25‧‧‧ bottom layer

Claims (3)

A method for fabricating an inner layer of a solar panel having a pattern, the solar panel structure having a protective layer, a first solar cell film layer, a power generation layer, a second solar cell film layer, and a back layer, and the present invention The inner layer manufacturing method has the following steps: adding a pattern step: a pattern layer is coated on the inner surface of the protective layer with respect to the direction of the power generation layer; and a color enhancement step is performed in the protective layer Coloring on the surface of the first solar cell film layer; forming step: sequentially stacking the protective layer having a patterned layer on the inner surface, a first solar cell film layer, a power generation layer, and the like from top to bottom a solar cell film layer and a back layer are subjected to vacuum hot press forming, and the total light transmittance of the patterned layer on the inner surface of the protective layer and the first solar cell film layer after molding is sufficient to penetrate the light The pattern layer and the first solar cell film layer can still provide sufficient light, such as incident light, to drive the power generation layer to generate electrical energy. The solar panel structure of the solar panel inner layer manufacturing method according to claim 1, wherein the pattern layer is a film or a soft light transmissive material, and the pattern is produced by dyeing, coating or attaching colors. The method for fabricating a solar panel inner layer having a pattern according to claim 1, wherein the method for coloring comprises coloring a solar cell film layer by dyeing or adding a colorant.