CN110010704B

CN110010704B - Multicolor solar power generation module and manufacturing method thereof

Info

Publication number: CN110010704B
Application number: CN201811512991.6A
Authority: CN
Inventors: 徐建智; 郭大宇; 车慧中
Original assignee: Rab Global Green Sdn Bhd
Current assignee: Rab Global Green Sdn Bhd
Priority date: 2018-12-11
Filing date: 2018-12-11
Publication date: 2022-07-15
Anticipated expiration: 2038-12-11
Also published as: CN110010704A

Abstract

A multicolor solar power generation module and a manufacturing method thereof have the advantages of high manufacturing efficiency, less ink consumption and less loss of the luminous efficiency caused by multicolor patterns. Mainly providing a multicolor pattern; analyzing the multicolored pattern to generate light regions and dark regions that do not overlap with each other; printing a white ink layer on the surface of the solar cell module in the light color area by UV ink jet, wherein the white ink layer is formed by regularly arranging a plurality of white ink dots, first light-transmitting gaps are formed among the white ink dots, and the whole occupied area of the first light-transmitting gaps is not less than one half of the whole occupied area of the white ink dots; printing a multicolor ink layer on the surface of the white ink layer by UV ink jet, wherein the multicolor ink layer is formed by regularly arranging a plurality of colored ink dots with various colors, second light-transmitting gaps are formed among the colored ink dots and can be penetrated by light, and the width of the first light-transmitting gaps and the width of the second light-transmitting gaps are 0.002-0.015 mm; thereby forming a multicolor solar power generation module.

Description

Multicolor solar power generation module and manufacturing method thereof

[ technical field ] A

The present invention relates to a technology for directly converting light radiation into electric energy, and more particularly, to a solar energy technology integrated with a building.

[ background ] A method for producing a semiconductor device

In recent years, in order to meet the more demanding requirements of the solar market, the conversion efficiency of the module is continuously improved, and meanwhile, the appearance is more humanized and meets the requirements of the environment. A large number of solar power stations are being built, and solar energy becomes more and more mature with integration with buildings and environments, which requires more colored components to meet aesthetic requirements. Especially, the demand of solar energy, buildings and environment integration on color components is more urgent, and people hope to select favorite colors to dress up own buildings and show the individuality of the buildings for solar energy products serving as building materials.

In the prior art, chinese patent CN200920318921.7 discloses an amorphous silicon thin-film solar cell module, which is a color solar cell module for buildings and is fixed on glass or toughened glass through a color adhesive layer, and is characterized in that an integrated photoelectric curtain wall member is composed of the amorphous silicon solar cell module, a color adhesive layer, and glass or toughened glass, the amorphous silicon thin-film solar cell module is fixed on the glass or toughened glass through the color adhesive layer, the amorphous silicon thin-film solar cell module is composed of multiple pieces which are combined and leave a gap, the electrode is connected through an aluminum foil amorphous silicon thin-film solar cell module, the gap is filled with a transparent material, the amorphous silicon thin-film solar cell module is pressed between two pieces of glass or toughened glass through the color adhesive layer, and is encapsulated by the two pieces of glass or toughened glass.

In the prior art, chinese patent CN201110225590.4 discloses a method for preparing a color solar cell with a pattern, which comprises the following steps: firstly, preparing a screen corresponding to a required pattern; printing the corrosive slurry on a color modulation layer of the color solar cell piece by using a screen printing mode through a manufactured screen printing plate, and treating for 10-3600 seconds at the temperature of 0-1000 ℃; and ultrasonically cleaning the corroded solar cell, spraying pure water on one surface of the positive electrode with the pattern, and drying to obtain the colored solar cell with the pattern.

In the prior art, chinese patent CN201220432249.6 discloses a color solar module made of color solar cells, which comprises tempered glass, EVA, color solar cells, EVA, and a back plate sequentially arranged from top to bottom, wherein the color solar cells are composed of single color solar cells containing more than 2 colors.

In the prior art, chinese patent No. cn201780000008.x discloses a color solar cell module, and a color pattern is formed on the solar cell module by special inkjet printing, which has higher manufacturing efficiency and better aesthetic effect compared with the prior art.

[ summary of the invention ]

The invention aims to provide a multicolor solar power generation module and a manufacturing method thereof, which can present vivid and saturated multicolor patterns on the traditional solar module and make the multicolor solar power generation module more beautiful. Meanwhile, the manufacturing method has higher efficiency, saves more ink and has less loss of the luminous efficiency by the colorful patterns. The multicolor solar power generation module can be applied to advertising signboards, building materials, artistic devices and the like, has the power generation function, and can effectively improve the application range and the additional value of the solar module.

The invention firstly provides a manufacturing method of a multicolor solar power generation module, which comprises the following steps:

s110: providing a solar cell module 200;

s120: providing a multi-color pattern 800 that conforms to the surface dimensions of the solar module 200;

s130: analyzing the multi-colored pattern 800 to generate at least one light area 810 and at least one dark area 820, the light area 810 and the dark area 820 not overlapping each other;

s140: within the light-colored region 810, printing a white ink layer 110 on the surface of the solar cell module 200 by UV inkjet, wherein the white ink layer 110 is formed by regularly arranging a plurality of white ink dots 111, a first light-transmitting gap 112 is formed between the white ink dots 111 and can be penetrated by light, the width of the first light-transmitting gap 112 is 0.002-0.015 mm, and the whole area of the first light-transmitting gap 112 is not less than one half of the whole area of the white ink dots 111;

s150: curing the white ink layer 110 by UV;

s160: a multicolor ink layer 120 is printed on the surface of the white ink layer 110 by ink jet, the multicolor ink layer 120 is formed by regularly arranging a plurality of colored ink dots 121 with various colors, a second light-transmitting gap 122 is formed between the colored ink dots 121 and can be penetrated by light, and the width of the second light-transmitting gap 122 is 0.002-0.015 mm; and

s170: the multicolor ink layer 120 is UV-cured, thereby forming a multicolor solar power generation module 1, wherein the dark regions 820 of the surface of the multicolor solar power generation module are not covered by the white ink layer 110.

The method provided by the invention is characterized in that a multicolor pattern is formed on the surface of the solar cell module by UV ink-jet printing, and the multicolor pattern is divided into a light-color area and a dark-color area in advance by an image processing technology before the ink-jet printing. Ink is only printed in the light color area in an ink jet mode, and the dark color area is not printed, so that the use of the ink can be reduced, the printing speed of patterns is higher, and the efficiency of manufacturing the multicolor solar power generation module is higher. Meanwhile, because the dark color area is not printed, the area of the solar cell module under the pattern, which is shielded by the pattern, is reduced, and a larger area is exposed to sunlight, the loss of the power generation efficiency is less.

In view of the same inventive concept, the present invention provides a second method for manufacturing a multicolor solar power generation module, comprising the following steps:

s210: providing a solar cell module 200 and a transparent film 300;

s220: providing a multi-color pattern 800 that conforms to the surface dimensions of the solar module 200;

s230: analyzing the multi-colored pattern 800 to generate at least one light area 810 and at least one dark area 820, the light area 810 and the dark area 820 not overlapping each other;

s240: within the light color area 810, a layer of white ink layer 110 is printed on the surface of the transparent film 300 by UV ink jet, the white ink layer 110 is formed by regularly arranging a plurality of white ink dots 111, a first light-transmitting gap 112 is formed between the white ink dots 111 and can be penetrated by light, the width of the first light-transmitting gap 112 is 0.002-0.015 mm, and the whole occupied area of the first light-transmitting gap 112 is not less than one half of the whole occupied area of the white ink dots 111;

s250: curing the white ink layer 110 with UV;

s260: a multicolor ink layer 120 is printed on the surface of the white ink layer 110 by ink jet, the multicolor ink layer 120 is formed by regularly arranging a plurality of colored ink dots 121 with various colors, second light-transmitting gaps 122 are formed among the colored ink dots 121 and can be penetrated by light, and the width of the second light-transmitting gaps 122 is 0.002-0.015 mm;

s270: curing the multi-color ink layer 120 by UV, thereby forming a multi-color transparent film 310 with a hollow area; and

s280: the other side of the multicolor transparent film 310 is bonded to the surface of the solar cell module 200, thereby forming a multicolor solar power generation module.

The invention provides a manufacturing method of a multicolor solar power generation module, which is characterized in that a multicolor transparent film formed by UV ink-jet printing is adhered on the surface of a solar cell module, and a multicolor pattern area is divided into a light color area and a dark color area in advance by an image processing technology before ink-jet printing. Ink is only printed in the light color area in an ink jet mode, and the dark color area is not printed, so that the use of the ink can be reduced, the printing speed of patterns is higher, and the efficiency of manufacturing the multicolor transparent film and the multicolor solar power generation module is higher. Meanwhile, because the dark color area is not printed, the area of the solar cell module under the pattern, which is shielded by the pattern, is reduced, and a larger area is exposed to sunlight, the loss of the power generation efficiency is less.

The invention also provides the multicolor solar power generation module manufactured by the method, wherein the multicolor patterns are formed on the surface of the solar power generation module, the white ink layer and the multicolor ink layer which form the multicolor patterns are in a micro-grid shape, and have preset light-transmitting gaps, so that the loss of the luminous efficiency of the solar module is small, and when the vivid and saturated pattern effect is expressed, the considerable power generation effect can be maintained.

The multicolor solar power generation module and the manufacturing method thereof provided by the invention can be applied to various solar cell modules, such as: the solar cell module is especially suitable for solar cell modules with dark color, and has wide application range.

[ description of the drawings ]

FIG. 1 is a schematic flow chart of a method for manufacturing a multicolor solar power module according to a first preferred embodiment of the present invention;

FIG. 2 is a schematic diagram of a white ink layer in the first preferred embodiment and the second preferred embodiment;

FIG. 3 is a schematic diagram of a multi-color ink layer according to the first and second preferred embodiments;

FIG. 4 is a schematic view of another multi-color ink layer in the first and second preferred embodiments;

FIG. 5 is a flow chart of another method of manufacturing a multicolor solar power module according to a second preferred embodiment of the present invention;

FIG. 6 is a schematic diagram of a white ink layer in the third and fourth preferred embodiments;

FIG. 7 is a schematic diagram of a multi-color ink layer in the third and fourth preferred embodiments;

FIG. 8 is a schematic view of another multi-color ink layer in the third and fourth preferred embodiments;

fig. 9 is a schematic view of a multicolor solar power generation module according to the third preferred embodiment and the fourth preferred embodiment.

The symbols in the drawings are as follows:

multicolor solar

power generation modules

1, 11

Solar cell module 200

Rough layer 210

Multicolored pattern 800

Light areas 810

Dark region 820

White ink layer 110

White dot 111

First light-transmitting gap 112

Titanium dioxide microparticles 113

Multicolor ink layer 120

Colored ink dots 121

Second light-transmitting gap 122

Transparent film 300

Multicolor transparent film 310

Manufacturing steps S110, S115, S120, S130, S140, S150, S160, S165, S170, S210,

S215、S220、S230、S240、S250、S260、S165、S270、S280

[ detailed description ] A

The present invention generally discloses the application of a solar cell, wherein the electrochemical basic principle of solar power generation is well known to those skilled in the relevant art, and therefore the following description is not fully described. Meanwhile, the drawings referred to in the following description mainly express the structural schematic related to the features of the present invention, and are not necessarily drawn completely according to actual dimensions, and are described in advance.

First preferred embodiment

A first embodiment of the present invention, please refer to fig. 1, is a method for manufacturing a multicolor solar power module 1, which mainly includes the following steps S110 to S170.

S110: referring to fig. 2, a solar cell module 200 is provided, and the solar cell module 200 is a packaged solar cell, and a surface layer thereof may be glass, polyethylene terephthalate (PET plastic), EPOXY resin (EPOXY), or other light-transmitting materials, without limitation.

S120: referring to fig. 2, the multicolor pattern 800 is not limited to a pattern containing three color systems of RGB, but may be a pattern of a single color system but having different shades.

S130: the multicolored pattern 800 is analyzed to generate at least one light region 810 and at least one dark region 820, the light region 810 and the dark region 820 not overlapping each other, as shown in fig. 2. Here, a threshold value for distinguishing light color and dark color is preset, and then the multicolor pattern 800 is divided into a light color area 810 and a dark color area 820 which are not overlapped with each other by human eyes or image processing software. More specifically, the outline of the light areas 810 and the outline of the dark areas 820 are defined for subsequent ink-jet printing.

S140: within the light color region 810, please refer to fig. 2, a white ink layer 110 is printed on the surface of the solar cell module 200 by UV inkjet, the white ink layer 110 is formed by regularly arranging a plurality of white ink dots 111, a first light-transmitting gap 112 is formed between the white ink dots 111 for light to penetrate through, the width of the first light-transmitting gap 112 is 0.002 mm to 0.015 mm, and the area occupied by the whole first light-transmitting gap 112 is not less than one half of the area occupied by the whole white ink dots 111.

S150: the white ink layer 110 is UV cured.

S160: referring to fig. 3, the multicolor ink layer 120 is formed by regularly arranging a plurality of colored ink dots 121 of various colors on the surface of the white ink layer 110 by ink-jet printing, a second light-transmitting gap 122 is formed between the colored ink dots 121 for light to penetrate through, and the width of the second light-transmitting gap 122 is 0.002 mm to 0.015 mm.

S170: the multicolor ink layer 120 is UV-cured, thereby forming a multicolor solar power generation module, and the dark regions 820 of the surface of the multicolor solar power generation module are not covered with the white ink layer 110.

In the above method, the white ink layer 110 is formed by inkjet printing within the light-colored region 810, and the key role played in the present invention is to serve as a substrate for a multicolor pattern. Since the surface of the solar cell module 200, which is generally packaged, is dark blue or black, it is not easy to form a vivid and saturated multicolor pattern on the surface thereof. If a multicolor pattern is directly formed on the surface of the solar cell module 200 of dark blue or black, a large amount of multicolor ink is consumed, and the multicolor pattern has a poor visual effect. The invention uses the white ink layer 110 as the substrate, on one hand, the surface color of the solar cell module is changed, and on the other hand, the white ink layer can be used as the sunlight reflecting surface, so that the multicolor patterns seen by human eyes are brighter and more saturated.

However, the white ink layer 110 can also block sunlight from entering the solar cell module 200, and therefore, the white ink layer 110 is substantially a grid pattern formed by a plurality of white ink dots 111 regularly arranged, and first light-transmitting gaps 112 are formed between the white ink dots 111 for light to pass through, as shown in fig. 2.

The first light-transmitting gap 112 is very important in the present invention, and if there is no first light-transmitting gap 112 in the white ink layer 110, light will be blocked by a large amount and cannot effectively penetrate through the white ink layer 110 to reach the underlying solar cell module 200, which may seriously affect the light-emitting efficiency. Therefore, the white ink layer 110 is preferably made with a digital controlled ink jet printer having a UV curing function, so that the width of the first light-transmitting gap 112 can be precisely controlled.

The width of the first light-transmitting gap 112 must be properly set, considering that the wavelength of the light generated by the photovoltaic reaction of the solar cell module 200 is mainly visible light, and the wavelength is 380 nm to 760 nm, so the first light-transmitting gap 112 is sufficient for the visible light to penetrate through to generate the power of the solar cell module 200. Through many experiments and tests, the width of the first light-transmitting gap 112 is preferably 0.002 mm to 0.015 mm, and more preferably 0.004 mm to 0.014 mm. If it is too wide, although the light transmitting effect is good, the effect as a pattern substrate is poor. If too narrow, the effect as a patterned substrate is good, but the light-transmitting effect is poor.

The ratio of the whole occupied area of the first light-transmitting gap 112 to the whole occupied area of the white ink dot 111 is also an important parameter, the whole occupied area of the white ink dot 111 is large, the effect of the white ink dot as a pattern substrate is good, but the light-transmitting effect is poor; the white ink dots 111 occupy a small area as a whole, and have a good light transmission effect, but have a poor effect as a pattern substrate. In the present invention, the area occupied by the whole of the first light-transmitting gap 112 should be not less than one half of the area occupied by the whole of the white ink dot 111; preferably, the entire area occupied by the first light-transmitting gap 112 is substantially the same as the entire area occupied by the white ink dot 111.

In the above method, within the range defined as the dark color region 820, the white ink layer 110 is not printed in the present invention, as shown in fig. 2, because the surface of the solar cell module 200 after general packaging is dark blue or black, if the white ink layer 110 is formed by ink-jet printing on the surface of the solar cell module to shield the underlying dark blue or black surface, and then the dark color pattern is printed to cover the white ink layer 110, it is very easy to do this. Through a plurality of tests, when people look at color pictures under sunlight, the people usually pay more attention to the details of light-colored areas, the dark-colored patterns mainly play a role in comparison, the light-colored areas are highlighted, and the people pay less attention to the details of the dark-colored patterns. Therefore, the present invention intentionally divides the multicolor pattern 800 into the light color region 810 and the dark color region 820, and forms the multicolor pattern having the white ink layer 110 on the light color region 810, and does not print the white ink layer 110 on the dark color region 810. Therefore, the area of ink-jet printing can be reduced, the time of ink-jet printing can be shortened, and the manufacturing efficiency of the manufacturing method of the multicolor solar power generation module can be accelerated.

If the pattern in the dark color area 820 is monotonous and dark, in step S160 of the present invention, the multi-color ink layer 120 is not printed in the dark color area 820, and the multi-color ink layer 120 is only printed on the white ink layer 110 in the light color area 810; the dark blue surface or the black surface of the solar cell module 200 is used in the dark region 820. Although the saturation and fineness of the multicolor pattern 800 are reduced, since the surface of the solar cell module 200 in the dark region 820 is not covered by the ink, the reduction of the power generation efficiency is less, and the power generation efficiency can be maintained better.

Of course, if the details of the preferred multicolor pattern 800 are maintained, the multicolor ink layer 200 can be directly printed on the surface of the solar cell module 200 within the range of the dark region 820, as shown in fig. 4.

In this embodiment, the white ink layer 110 is preferably formed by digitally controlled inkjet printing, so that the line width of the white ink dots 111 and the width of the first light-transmitting gap 112 can be precisely controlled.

The line width of the white dot 111 to be controlled can operate on two parameters: firstly, adjusting the amount of white ink; and secondly, adjusting the radiation illuminance of the UV lamp. When the amount of the ink is not changed, the radiation illuminance is increased, the white ink dot 111 on the surface of the solar cell module 200 is smaller, and the white ink dot 111 is smaller because an early curing phenomenon is generated in the ink jet process, and a splashing phenomenon is not generated when the white ink dot 111 falls on the surface of the solar cell module 200. For example, when the UV inkjet printer with 720 × 720dpi is used for printing, 720 × 720dpi indicates that 518400 dots exist in a square inch area, the normal formation thickness of the white ink layer 110 is 0.01 mm, and the ink will splash and lose during the inkjet printing process, so the size of the generated white ink dot 111 is about 0.005-0.01 mm, and the width of the first light-transmitting gap 112 is 0.002-0.007 mm, so that the visible light with the wavelength of 380-760 nm can easily pass through. However, for higher solar efficiency, the amount of ink can be kept constant, and a wider pitch can be obtained by increasing the irradiance, but the thickness of the white ink increases. Generally, the ink-jet amount of the UV ink-jet printer per unit time is fixed, and when the ink-jet thickness is increased from 0.01 mm to 0.015 mm, the width of the first transparent gap 112 is increased by 50%, which reaches 0.004-0.014 mm, and more visible light can penetrate through the gap.

In the present embodiment, preferably, the white ink layer 110 further includes titanium dioxide particles 113, as shown in fig. 2, a particle size of the titanium dioxide particles 113 is not greater than a width of the first light-transmitting gap 112. Titanium dioxide is an excellent photocatalyst and can promote photoelectric conversion reaction; meanwhile, the titanium dioxide particles 113 are white and mixed in the white ink layer 110, so that the color of the white ink is not changed. The titanium dioxide particles 113 can reflect or scatter light originally shielded or absorbed by the ink outward, and pass through the white ink layer 110 to reach the underlying solar cell module 200, so that the light emitting efficiency is less reduced.

Referring to fig. 3, the multicolor ink layer 120 includes a grid-shaped multicolor pattern formed by a plurality of colored ink dots 121 of various colors regularly arranged, second light-transmitting gaps 122 are formed between the colored ink dots 121 for light to pass through, and the second light-transmitting gaps 122 mainly function to allow light to pass through, so that the solar cell module 200 performs a desired function. Preferably, the inks used in the multi-color ink layer 120 include cyan ink, red ink, yellow ink, and black ink, so that the grid-like multi-color pattern is formed by ink-jet printing.

The width of the second light-transmitting gap 122 must be set appropriately, and if it is too wide, although the light-transmitting effect is good, the effect as a multicolor pattern is poor. If it is too narrow, the effect as a multicolor pattern is good, but the light transmission effect and the power generation efficiency are poor. Considering the width of the first transparent gap 112 of the white ink layer 110 of the substrate, through many experiments and tests, it is preferable that the width of the second transparent gap 122 is 0.002 mm to 0.015 mm, and more preferably 0.004 mm to 0.014 mm.

The ratio of the whole area occupied by the second light-transmitting gap 122 to the whole area occupied by the colored dots 121 is also an important parameter, the whole area occupied by the colored dots 121 is large, the pattern vividness and saturation are good, but the light-transmitting effect and the power generation efficiency are poor; the colored dots 121 occupy a small area as a whole, and the pattern is not bright and saturated, but the light transmission effect and the power generation efficiency are better. In the present invention, the area occupied by the second light-transmitting gap 122 should be no less than half of the area occupied by the colored dots 121; preferably, the entire area occupied by the second light-transmitting gap 122 is substantially the same as the entire area occupied by the colored ink dots 121.

The multi-color ink layer 120 is preferably formed by digitally controlled ink jet printing, which allows precise control of the width of the second light-transmissive gap 122.

In consideration of the overall effect of light transmission and being used as a pattern substrate, the thickness of the white ink layer 110 is 0.01 mm to 0.015 mm in this embodiment.

Referring to fig. 1 and 2, in order to make the white ink layer 110 more easily adhere to the surface of the solar cell module 200, have better firmness, and achieve better light-transmitting effect when being printed on the glass, EPOXY, PET, light-transmitting material, etc. of the surface of the solar cell module 200, the present invention further includes a step S115 before the step S140,

s115: a roughness layer 210 is formed on the surface of the solar cell module 200 by sandblasting.

Therefore, the white ink layer 110 is more easily formed on the rough layer 210, and when sunlight irradiates the solar cell module 200, more incident light can enter the solar cell module 200 through light refraction and light diffraction formed by the rough layer 210, thereby improving the light emitting efficiency.

Second preferred embodiment

The present invention further provides a second preferred embodiment, a multicolor solar power generation module, as shown in fig. 2 to 4, which is characterized by using the manufacturing method of the first preferred embodiment.

Third preferred embodiment

The present invention further provides a third preferred embodiment, please refer to fig. 5, which is a manufacturing method of a multicolor solar power generation module 11, mainly comprising the following steps S210 to S280.

S210: a solar cell module 200 and a transparent film 300 are provided, wherein the solar cell module 200 is a packaged solar cell, and the surface layer thereof may be glass, polyethylene terephthalate (PET plastic), EPOXY resin (EPOXY), or other light-transmitting material, without limitation.

S220: the multicolor pattern 800 is provided to correspond to the surface size of the solar cell module 200, and the multicolor pattern 800 does not mean a pattern including three color systems of RGB at the same time, but may be a pattern of a single color system having different shades.

S230: the multi-color pattern 800 is analyzed to generate at least one light region 810 and at least one dark region 820, the light region 810 and the dark region 820 being non-overlapping with respect to each other, see fig. 6. Here, a threshold value for distinguishing light color and dark color is preset, and then the multicolor pattern 800 is divided into a light color area 810 and a dark color area 820 which are not overlapped with each other by human eyes or image processing software. More specifically, the outline of the light areas 810 and the outline of the dark areas 820 are defined for subsequent ink-jet printing.

S240: within the light color region 810, a white ink layer 110 is UV ink-jet printed on the surface of the transparent film 300, as shown in FIG. 6. The white ink layer 110 is formed by regularly arranging a plurality of white ink dots 111, a first light-transmitting gap 112 is formed between the white ink dots 111 for light to penetrate through, the width of the first light-transmitting gap 112 is 0.002 mm to 0.015 mm, and the whole occupied area of the first light-transmitting gap 112 is not less than one half of the whole occupied area of the white ink dots 111.

S250: curing the white ink layer 110 with UV;

s260: a multi-color ink layer 120 is printed on the surface of the white ink layer 110 by ink-jet printing, please refer to fig. 7. The multicolor ink layer 120 is formed by regularly arranging a plurality of colored ink dots 121 with various colors, a second light-transmitting gap 122 is formed between the colored ink dots 121 and can be penetrated by light, and the width of the second light-transmitting gap 122 is 0.002-0.015 mm.

s280: the other side of the multicolor transparent film 310 is bonded to the surface of the solar cell module 200, please refer to fig. 9, thereby forming a multicolor solar power generation module 11.

The third preferred embodiment is based on the general inventive concept, wherein the greatest difference is that the first preferred embodiment is to directly ink-jet print multi-color patterns on the surface of the solar cell module 200, and the third embodiment is to ink-jet print multi-color patterns on the transparent film 300 to form the multi-color transparent film 310, and then adhere the multi-color transparent film 310 on the surface of the solar cell module 200, and most technical features are basically the same.

In order to achieve both of the better vividness and the better light emitting efficiency of the multicolor pattern, in the embodiment, the widths of the first light-transmitting gap 112 and the second light-transmitting gap 122 formed through the steps S240 and S260 are 0.002 mm to 0.015 mm, and more preferably 0.004 mm to 0.014 mm. In the white ink layer 110, the area occupied by the whole first light-transmitting gap 112 should be no less than one half of the area occupied by the whole white ink dot 111; preferably, the entire area occupied by the first light-transmitting gap 112 is substantially the same as the entire area occupied by the white ink dot 111. In the multicolor ink layer 120, the whole occupied area of the second light-transmitting gap 122 should be not less than one half of the whole occupied area of the colored ink dot 121; preferably, the area occupied by the second light-transmitting gap 122 is substantially the same as the area occupied by the colored ink dot 121.

In this embodiment, if the planar multicolor pattern layer 100 is to be formed, the thicknesses of the white ink layer 110 and the multicolor ink layer 120 are preferably 0.01 mm to 0.015 mm, respectively.

In the embodiment, within the range defined as the dark color region 820, the white ink layer 110 is not printed on the transparent film 300 in the invention, because the surface of the solar cell module 200 which is generally packaged is dark blue or black, the white ink layer 110 is not printed on the dark color region 810 in the invention, so that the usage amount of the white ink can be greatly reduced, please refer to fig. 7.

Meanwhile, if the pattern in the dark region 820 is monotonous and dark in color, the present embodiment basically does not print the multi-color ink layer 120 in the dark region 820 of the transparent film 300, but prints the multi-color ink layer 120 only on the white ink layer 110 in the light region 810; the dark blue surface or the black surface of the solar cell module 200 is used in the dark region 820. Although the saturation and fineness of the multicolor pattern 800 are reduced, since the surface of the solar cell module 200 in the dark region 820 is not covered by the ink, the reduction of the power generation efficiency is less, and the power generation efficiency can be maintained better. Of course, if the details of the preferred multicolor pattern 800 are maintained, the present embodiment can print the multicolor ink layer 120 in the dark color region 820 of the transparent film 300, please refer to fig. 8.

In order to make the white ink layer 110 more easily adhere to the solar cell module 200 for better firmness, the embodiment further includes step S215, please refer to fig. 5.

At this time, in step S280, the other side of the multi-color transparent film 310 is adhered to the rough layer 210 of the solar cell module 200.

Fourth preferred embodiment

The present invention further provides a fourth preferred embodiment, a multicolor solar power generation module 11, as shown in fig. 6 to 9, which is characterized by using the manufacturing method of the third preferred embodiment.

Through the above description, the advantages of the present invention are summarized as follows:

first, the multicolor pattern 800 is directly formed on the surface of the solar cell module 200 or the transparent film 300 on the surface of the solar cell module 200, so that the manufacturing is simple and the mass production is easy.

Second, the multicolor pattern 800 is composed of the light color region 810 and the dark color region 820, and the pattern of the light color region 810 is composed of the multicolor ink layer 120 and the white ink layer 110 at the bottom thereof, so that the multicolor pattern is saturated and vivid by eliminating the adverse effect of the dark blue or black surface of the solar cell module 200.

Third, the multicolor ink layer 120 and the white ink layer 110 on the bottom thereof respectively have a proper second light-transmitting gap 122 and a proper first light-transmitting gap 112, which can provide sufficient light-transmitting effect and have less influence on the light-emitting efficiency of the solar cell module 200.

And fourthly, the multicolor solar power generation module is defined by the division of the light-color area 810 and the dark-color area 820, so that the manufacturing speed of the multicolor solar power generation module is higher, the using amount of ink is less, saturated and vivid multicolor patterns can be obtained, and the luminous efficiency is enough to meet the practical use.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention; while the foregoing description will be apparent to those skilled in the relevant art and it is intended to cover in the appended claims all such modifications and changes as fall within the true spirit of the invention.

Claims

1. A method of manufacturing a multicolor solar power module, comprising the steps of:

(S110) providing a solar cell module (200);

(S120) providing a multi-colored pattern (800) conforming to the surface dimensions of the solar cell module (200);

(S130) analyzing the multicolored pattern (800) to generate at least one light region (810) and at least one dark region (820), the light region (810) and the dark region (820) not overlapping each other;

(S140) printing a white ink layer (110) on the surface of the solar cell module (200) in the light-color area (810) by UV ink-jet printing, wherein the white ink layer (110) is formed by regularly arranging a plurality of white ink dots (111), a first light-transmitting gap (112) is formed between the white ink dots (111) and can be penetrated by light, the width of the first light-transmitting gap (112) is 0.002-0.015 mm, and the whole occupied area of the first light-transmitting gap (112) is not less than one half of the whole occupied area of the white ink dots (111);

(S150) curing the white ink layer (110) by UV;

(S160) printing a multicolor ink layer (120) on the surface of the white ink layer (110) by ink jet, wherein the multicolor ink layer (120) is formed by regularly arranging a plurality of colored ink dots (121) with various colors, a second light-transmitting gap (122) is formed between the colored ink dots (121) and can be penetrated by light, and the width of the second light-transmitting gap (122) is 0.002-0.015 mm;

(S165) within the range of the dark color region (820), printing the multicolor ink layer (120) on the surface of the solar cell module (200) by UV ink jet, wherein the multicolor ink layer (120) is formed by regularly arranging a plurality of colored ink dots (121) with various colors, a second light-transmitting gap (122) is formed between the colored ink dots (121) and can be penetrated by light, and the width of the second light-transmitting gap (122) is 0.002-0.015 mm;

(S170) curing the multicolor ink layer (120) with UV, thereby forming a multicolor solar power generation module having the dark region (820) of the surface thereof not covered with the white ink layer (110).

2. The method of claim 1, further comprising a step (S115) before the step (S140), wherein,

(S115) forming a roughness layer (210) on the surface of the solar cell module (200) by sandblasting.

3. The method of claim 1, wherein the white ink layer (110) contains titanium dioxide particles (113).

4. The method of claim 3, wherein the white ink layer (110) has a thickness of 0.01 mm to 0.015 mm.

5. A multicolor solar power generation module characterized by being produced by the method for producing a multicolor solar power generation module according to any one of claims 1 to 4.

6. A method of manufacturing a multi-color solar power module, comprising the steps of:

(S210) providing a solar cell module (200) and a transparent film (300);

(S220) providing a multicolor pattern (800) conforming to a surface size of the solar cell module (200);

(S230) analyzing the multicolored pattern (800) to generate at least one light region (810) and at least one dark region (820), the light region (810) and the dark region (820) not overlapping each other;

(S240) printing a white ink layer (110) on the surface of the transparent film (300) in the light color area (810) by UV ink jet, wherein the white ink layer (110) is formed by regularly arranging a plurality of white ink dots (111), a first light-transmitting gap (112) is formed between the white ink dots (111) and can be penetrated by light, the width of the first light-transmitting gap (112) is 0.002-0.015 mm, and the whole occupied area of the first light-transmitting gap (112) is not less than one half of the whole occupied area of the white ink dots (111);

(S250) curing the white ink layer (110) with UV;

(S260) printing a multicolor ink layer (120) on the surface of the white ink layer (110) by ink jet, wherein the multicolor ink layer (120) is formed by regularly arranging a plurality of colored ink dots (121) with various colors, second light-transmitting gaps (122) are formed among the colored ink dots (121) and can be penetrated by light rays, and the width of the second light-transmitting gaps (122) is 0.002-0.015 mm;

(S265) printing the multi-color ink layer (120) on the surface of the transparent film (300) by UV ink-jet within the range of the dark color region (820), wherein the multi-color ink layer (120) is formed by regularly arranging a plurality of colored ink dots (121) with various colors, a second light-transmitting gap (122) is formed between the colored ink dots (121) and can be penetrated by light, and the width of the second light-transmitting gap (122) is 0.002-0.015 mm;

(S270) UV curing the multi-colored ink layer (120), thereby forming a multi-colored transparent film (310) having a hollow area; and

(S280) bonding the other surface of the multicolor transparent film (310) to the surface of the solar cell module (200), thereby forming a multicolor solar power generation module.

7. The method of claim 6, further comprising a step (S215) before the step (S280), wherein,

(S215) forming a roughness layer (210) on the surface of the solar cell module (200) by sandblasting.

8. The method of claim 7, further comprising, in the step (S280): bonding the other side of the multi-colored transparent film (310) to the rough layer (210) of the solar cell module (200).

9. The method of claim 6, wherein the white ink layer (110) comprises titanium dioxide particles (113), and the thickness of the multi-color ink layer (120) is 0.01 mm to 0.015 mm.

10. A multicolor solar power generation module characterized by being produced by the method for producing a multicolor solar power generation module according to any one of claims 6 to 9.