KR102444138B1 - Aesthetic solar module using moire phenomenon - Google Patents

Abstract

The present invention relates to an aesthetic solar module using a moire phenomenon and, more specifically, to an aesthetic solar module using a moire phenomenon which causes a moire phenomenon by making a mismatch between patterns at a set angle when looking at the patterns for printing a color paste containing a light interference pigment on a left surface and a right surface of glass configuring the solar module, respectively, thereby having an excellent aesthetic effect and a high light receiving amount.

Description

Aesthetic solar module using moiré effect {AESTHETIC SOLAR MODULE USING MOIRE PHENOMENON}

) 현상을 이용한 심미적 태양광 모듈에 관한 것으로서, 특히 태양광 모듈을 구성하는 유리의 좌측면 및 우측면에 각각 광간섭 안료 함유 컬러 페이스트로 인쇄된 패턴을 측면에서 바라볼 때 서로 설정 각도만큼 어긋나게 하여 모아레 현상을 유발함으로써 심미적인 효과가 우수하고 수광량이 높은, 모아레 현상을 이용한 심미적 태양광 모듈에 관한 것이다.The present invention is moiré (moir

) relates to an aesthetic photovoltaic module using the phenomenon, in particular, the patterns printed with color paste containing optical interference pigments on the left and right sides of the glass constituting the photovoltaic module, respectively, are displaced by a set angle when viewed from the side. It relates to an aesthetic solar module using a moiré phenomenon, which has an excellent aesthetic effect and a high amount of light received by inducing a phenomenon.

Recently, in order to suppress the global climate change caused by greenhouse gas emission, the supply of new and renewable energy is being actively carried out. Among them, the photovoltaic technology that converts sunlight into electricity has the advantage of being able to generate power in the city center, and the building integrated photovoltaic module (BIPV) market that is attached to the exterior wall of a building is growing. However, in order to maximize the electrical conversion efficiency, the color of the existing solar module is black, which can maximize light absorption, which is not acceptable to residents because it impairs the aesthetics of the exterior of the building.

In order to give aesthetics to monotonous black solar modules, solar modules with colorful colors were developed.

First, it is a method of manufacturing a photovoltaic module that realizes color by coating color pigments on glass. This is because the color pigment inhibits the light transmission, thereby seriously reducing the efficiency of the solar module.

Second, it is a method of forming a multi-layer thin film on the lower surface of the glass by vacuum deposition. This is a method in which diffraction and interference of light are generated by the multilayer thin film, and using this, light of a specific wavelength is reflected and light of the remaining wavelength is transmitted. However, this method is disadvantageous in lowering the cost of the color photovoltaic module because the manufacturing cost of the colored glass having a multilayer thin film structure based on vacuum deposition is high.

Therefore, a method capable of implementing a color solar module at a low cost while having high light transmittance was required.

Korean Patent No. 10-2142401 (Title of Invention: Solar Panel Integrated Building Exterior Material)

Therefore, the present invention has been made to solve the above problems, and an object of the present invention is to provide an aesthetic solar module using the moiré phenomenon, which has excellent aesthetic effects and high light reception.

In order to achieve the above object, an aesthetic solar module using a moiré phenomenon according to an embodiment of the present invention includes a flat-panel solar cell configured to convert the energy of incident sunlight into electrical energy; a back sheet located on the left side of the solar cell and configured to protect the solar cell from a harsh external environment; and a plate-shaped glass positioned on the right side of the solar cell to transmit sunlight and constituting the outer wall of the building, wherein a plurality of left-hand patterns are printed with a color paste on the left side of the glass, spaced apart from each other, and the glass A plurality of right patterns are printed spaced apart from each other with color paste on the right side of the , and the left pattern and the right pattern are displaced at a set angle when viewed from the side.

In order to achieve the above object, an aesthetic solar module using a moiré phenomenon according to another embodiment of the present invention includes a flat-panel solar cell configured to convert the energy of incident sunlight into electrical energy; a back sheet located on the left side of the solar cell and configured to protect the solar cell from a harsh external environment; and a glass positioned on the right side of the solar cell to transmit sunlight, constituting the outer wall of the building, and formed in a form in which a plurality of prism patterns are connected when the left and right sides are viewed from the side. On the upper left side of the pattern, a left pattern is printed with color paste, and on the lower right side of the prism pattern on the right side of the glass, a right pattern is printed with color paste, and the left pattern and the right pattern are When viewed from the side, it is characterized in that they are offset from each other at a set angle.

In the aesthetic solar module using the moiré phenomenon according to the above and other embodiments, the left pattern and the right pattern may be formed by a printing method using a color paste containing an optical interference pigment.

In the aesthetic solar module using the moiré phenomenon according to the above and other embodiments, the optical interference pigment may be prepared by coating titanium oxide on mica.

In the aesthetic solar module using the moiré phenomenon according to the other embodiment, the glass is a plurality of prism patterns when viewed from the side using UV resin or thermoplastic or thermosetting resin on the left and right sides of the flat glass. the process of forming into a shape; and a color paste is printed on the upper left side of the prism pattern on the left side of the glass to form a left pattern, and a color paste is printed on the lower right side of the prism pattern on the right side of the glass. It can be manufactured by; a process of forming a right-side pattern using

In the aesthetic solar module using the moiré phenomenon according to the other embodiment, the glass is a process of preparing a film in which the left pattern is printed with color paste on the upper left side of the plurality of prism patterns when viewed from the side; A process of preparing a film in which a right-side pattern is printed with a color paste on the lower-right side of the plurality of prism patterns when viewed from the side; and a process of attaching the film on which the left pattern is printed and the film on which the right pattern is printed on the left and right surfaces of the flat glass when viewed from the side in a non-aligned manner.

In the aesthetic solar module using the moiré phenomenon according to the other embodiment, the glass is formed in a form in which a plurality of prism patterns are connected when viewed from the side by etching the left side and the right side of the flat glass; and printing the left pattern with color paste on the upper left side of the prism pattern on the left side of the glass, and printing the right pattern with color paste on the lower right side of the prism pattern on the right side of the glass. can be manufactured by

According to the aesthetic solar module using the moiré phenomenon according to the embodiment of the present invention, a plurality of right patterns (P1) are printed with a color paste spaced apart from each other on the left side of the glass constituting the solar module, and the right side of the glass A plurality of right patterns P2 are printed with a color paste spaced apart from each other, and the left pattern and the right pattern are configured to be displaced from each other at a set angle when viewed from the side, thereby generating a moiré effect, so the aesthetic effect is excellent It has an excellent effect.

According to the aesthetic photovoltaic module using the moiré phenomenon according to another embodiment of the present invention, the glass constituting the photovoltaic module is formed in a form in which a plurality of prism patterns are connected when viewed from the side on the left side and the right side, and the The left pattern P1 is printed with color paste on the upper left side of the prism pattern on the left side of the glass, and the right pattern P2 is printed with color paste on the lower right side of the prism pattern on the right side of the glass. and the left pattern and the right pattern are configured to be shifted from each other at a set angle when viewed from the side. Since it is acceptable, there is an excellent effect of high light reception.

1 is a schematic cross-sectional view of an aesthetic solar module using a moiré phenomenon according to a first embodiment of the present invention.
2 is a schematic cross-sectional view of an aesthetic solar module using a moiré phenomenon according to a second embodiment of the present invention.
3 is a comparative photograph of a conventional photovoltaic module and an aesthetic photovoltaic module using the moiré phenomenon according to the first and second embodiments of the present invention.
FIG. 4 is a view showing that sunlight is received by the solar module of FIG. 2 .
5 is a view showing a close vertical relationship between the left and right patterns and the human gaze in the solar module of FIG. 2 .
6 is a view showing a first example for explaining the manufacturing method of the glass constituting the solar module of FIG.
7 is a view showing a second example for explaining the manufacturing method of the glass constituting the solar module of FIG.
8 is a view showing a third example for explaining the manufacturing method of the glass constituting the solar module of FIG.

In describing the embodiments of the present invention, if it is determined that the detailed description of the known technology related to the present invention may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted. In addition, the terms described below are terms defined in consideration of functions in the present invention, which may vary according to intentions or customs of users and operators. Therefore, the definition should be made based on the content throughout this specification. The terminology used in the detailed description is for the purpose of describing embodiments of the present invention only, and should in no way be construed as limiting. Unless explicitly used otherwise, expressions in the singular include the meaning of the plural. In this description, expressions such as “comprising” or “comprising” are intended to indicate certain features, numbers, steps, acts, elements, some or a combination thereof, one or more other than those described. It should not be construed as excluding the presence or possibility of other features, numbers, steps, acts, elements, or any part or combination thereof.

In each system shown in the figures, elements in some instances may each have the same reference number or a different reference number, suggesting that the represented element may be different or similar. However, elements may have different implementations and work with some or all of the systems shown or described herein. The various elements shown in the drawings may be the same or different. Which one is referred to as the first element and which is referred to as the second element is arbitrary.

In this specification, when any one component 'transmits', 'transfers' or 'provides' data or signal to another component, one component directly transmits data or signal to another component, as well as, and transmitting data or signals to the other component via at least one further component.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

[First embodiment]

1 is a schematic cross-sectional view of an aesthetic solar module using a moiré phenomenon according to a first embodiment of the present invention.

As shown in FIG. 1 , the aesthetic solar module using the moiré phenomenon according to the first embodiment of the present invention includes a solar cell 20 , a back sheet 10 , and a glass 30 . An encapsulant S is filled between the solar cell 20 and the back sheet 10 and between the solar cell 20 and the glass 30 .

The solar cell 20 receives sunlight incident through the glass 30 and serves to convert the energy of the sunlight into electrical energy.

The back sheet 10 is located on the left side of the solar cell 20 (described as the left side in the drawing, but may actually be the rear side), and serves to protect the solar cell 20 from a harsh external environment. The backsheet 10 is usually white to reflect the long-wavelength light not absorbed by the solar cell 20 , but black may be used for the color of the optical interference pigment. In addition, glass may be used instead of the back sheet 10 depending on the application.

The glass 30 is positioned on the right side of the solar cell 20 (shown as the right side in the drawing, but may actually be the front side), transmits sunlight, constitutes the outer wall of the building, and has a flat plate shape.

A plurality of left patterns P1 (for example, a straight shape, a wavy shape, etc.) are printed on the left side of the glass 30 (described as the left side in the drawing, but may actually be the rear side), spaced apart with a color paste, and printed. , A plurality of right patterns P2 (eg, straight shape, wavy shape, etc.) are printed on the right side of the glass 30 (described as the right side in the drawing, but may actually be the front side) with a color paste spaced apart from each other. In particular, the plurality of left patterns P1 and right patterns P2 are shifted from each other at a set angle when viewed from the side (described as a side in the drawing, but may actually be a front), so that the left and right sides of the glass 30 Since it is printed on the side, it has an excellent aesthetic effect by generating a moiré phenomenon. The left pattern P1 and the right pattern P2 may have the same color or different colors. If the colors are different from each other, the aesthetic effect is even better.

3 is a comparative photograph of a conventional photovoltaic module and an aesthetic photovoltaic module using the moiré phenomenon according to the first embodiment of the present invention.

The photovoltaic module located in the center of FIG. 3 shows that when the left and right patterns printed on the left and right sides of the glass are aligned with each other when viewed from the side, the moiré effect does not appear on the photovoltaic module. On the other hand, in the case of the photovoltaic module located on the right side of FIG. 3, the left and right patterns printed on the left and right sides of the glass are misaligned at a set angle when viewed from the side, causing a moiré phenomenon, so the left and right patterns printed on the left and right sides of the glass , it can be seen that the esthetic effect is superior to that of the solar module in which the right patterns are aligned with each other.

)을 코팅하여 제조될 수 있음]를 함유한 컬러 페이스트를 스크린 인쇄와 같은 인쇄법으로 형성하였으며, 진공 증착으로 형성한 다층 박막에 비해 비용이 저렴하고 다양한 색상 및 패턴을 구현할 수 있다는 장점이 있다. The left pattern P1 and the right pattern P2 are optical interference pigments [eg, titanium oxide on mica (

) was formed by a printing method such as screen printing, and has the advantage that it is inexpensive and can implement various colors and patterns compared to multilayer thin films formed by vacuum deposition.

According to the aesthetic photovoltaic module using the moiré phenomenon according to the first embodiment of the present invention configured as described above, a plurality of left patterns P1 are printed with a color paste on the left side of the glass constituting the photovoltaic module spaced apart from each other. , On the right side of the glass, a plurality of right patterns P2 are printed spaced apart with a color paste, and the left pattern and the right pattern are configured to be displaced from each other at a set angle when viewed from the side, thereby generating a moiré effect. The aesthetic effect is excellent.

[Second embodiment]

2 is a schematic cross-sectional view of an aesthetic solar module using a moiré phenomenon according to a second embodiment of the present invention.

As shown in FIG. 2, the aesthetic solar module using the moiré phenomenon according to the second embodiment of the present invention includes a solar cell 20, a back sheet 10, and a glass 30'. An encapsulant S is filled between the solar cell 20 and the back sheet 10 and between the solar cell 20 and the glass 30 ′.

The solar cell 20 receives sunlight incident through the glass 30 ′ and converts the energy of the sunlight into electrical energy.

The back sheet 10 is located on the left side of the solar cell 20 (described as the left side in the drawing, but may actually be the rear side), and serves to protect the solar cell 20 from a harsh external environment. The backsheet 10 is usually white to reflect the long-wavelength light not absorbed by the solar cell 20 , but black may be used for the color of the optical interference pigment. In addition, glass may be used instead of the back sheet 10 depending on the application.

The glass 30 ′ is located on the right side of the solar cell 20 (described as the right side in the drawing, but may actually be the front side) to transmit sunlight and constitutes the exterior wall of the building, and the left and right sides are side surfaces When viewed from , a plurality of prism patterns are connected.

A plurality of left patterns P1 are printed with color paste on the upper left side of the prism pattern on the left side of the glass 30', and the color paste is on the lower right side of the prism pattern on the right side of the glass 30'. a plurality of right patterns P2 are printed, and a plurality of left patterns P1 and a plurality of right patterns P2 are each other when viewed from the side (described as a side in the drawing, but may actually be a front side) Since it is shifted at a set angle, a moiré phenomenon occurs when a person looks while moving, and the aesthetic effect is excellent (refer to the right solar module of FIG. 3 ).

The left pattern P1 and the right pattern P2 may have the same color or different colors. If the colors are different from each other, the aesthetic effect is even better.

)을 코팅하여 제조될 수 있음]를 함유한 컬러 페이스트를 스크린 인쇄와 같은 인쇄법으로 형성하였으며, 진공 증착으로 형성한 다층 박막에 비해 비용이 저렴하고 다양한 색상 및 패턴을 구현할 수 있다는 장점이 있다. The left pattern P1 and the right pattern P2 are optical interference pigments [eg, titanium oxide on mica (

) was formed by a printing method such as screen printing, and has the advantage that it is inexpensive and can implement various colors and patterns compared to multilayer thin films formed by vacuum deposition.

As shown in FIG. 4 , the left pattern P1 and the right pattern P2 are printed to have an angle close to parallel with the incident angle of sunlight, so that sunlight easily passes between the two patterns. It is possible to increase the amount of light received.

As shown in FIG. 5 , since the printed surface of the left and right patterns P1 and P2 of the solar module and the human gaze are close to a vertical relationship, the color expression of the optical interference pigment can be maximized.

The glass 30' may be manufactured in a variety of ways, as shown in FIGS. 6, 7 and 8 .

(Example 1)

6 is a view showing a first example for explaining the manufacturing method of the glass constituting the solar module of FIG.

First, using UV resin or thermoplastic or thermosetting resin on the left and right sides of flat glass, a plurality of prism patterns are formed in a continuous manner when viewed from the side (shown as a side in the drawing, but may actually be the front) do. At this time, the right side prism patterns of the left side may be formed to be misaligned with each other when viewed from the side (described as a side in the drawing, but may actually be a front side) so as to exhibit a moiré effect later.

Next, the left-side pattern P1 is formed by printing a color paste on the upper-left side of the prism pattern on the left side of the glass, and the color paste is applied on the lower-right side of the prism pattern on the right side of the glass. The glass of the solar module is manufactured by forming the right pattern P2 using a printing method.

(2nd example)

7 is a view showing a second example for explaining the manufacturing method of the glass constituting the solar module of FIG.

First, a film on which the left pattern P1 is printed with color paste on the upper left side of the plurality of prism patterns when viewed from the side is prepared.

Next, a film on which the right-side pattern P2 is printed with color paste on the lower-right side of the plurality of prism patterns when viewed from the side is prepared.

Next, by attaching a film having a left pattern P1 printed thereon to the left side of the flat glass and attaching a film having a right pattern P2 printed thereto to the right side of the flat glass, the glass of the solar module is manufactured. In this case, the moiré effect may be caused by attaching the patterns of the films on both sides to be non-aligned when viewed from the side.

(3rd example)

8 is a view showing a third example for explaining the manufacturing method of the glass constituting the solar module of FIG.

First, the left side and the right side of the flat glass are etched to form a plurality of prism patterns connected when viewed from the side (although it has been described as the side in the drawing, it may actually be the front side). At this time, in order to induce a moiré pattern, the prism patterns on both sides may be misaligned with each other when viewed from the side.

Next, the left side pattern (P1) is printed with color paste on the upper left side of the prism pattern on the left side of the glass, and the right side pattern (P2) with color paste on the lower right side of the prism pattern on the right side of the glass The glass of the solar module is manufactured by printing.

According to the aesthetic photovoltaic module using the moiré phenomenon according to the second embodiment of the present invention configured as above, the glass constituting the photovoltaic module is formed in a form in which a plurality of prism patterns are connected when viewed from the side on the left side and the right side. The left side pattern (P1) is printed with color paste on the upper left side of the prism pattern on the left side of the glass, and the right side pattern (P1) with color paste on the lower right side of the prism pattern on the right side of the glass ( P2) is printed, and the left pattern and the right pattern are configured to be shifted from each other at a set angle when viewed from the side, thereby generating a moiré effect, so the aesthetic effect is excellent and a large amount through the left and right patterns It can receive sunlight, so the amount of light received is high.

In the above description, in order to generate the moiré effect, forming the left and right patterns of the glass to be misaligned when viewed from the side as an example, but the pitch and the right pattern of the left pattern without displacing the left and right patterns from each other A moiré effect may be generated even when the pitches of the are formed differently.

In the drawings and specification, an optimal embodiment is disclosed, and specific terms are used, but these are used only for the purpose of describing the embodiments of the present invention, and are used to limit the meaning or limit the scope of the present invention described in the claims it didn't happen Therefore, it will be understood by those skilled in the art that various modifications and equivalent other embodiments are possible therefrom. Therefore, the true technical protection scope of the present invention should be determined by the technical spirit of the appended claims.

10: back seat
20: solar cell
S: encapsulant
30, 30′: glass
P1: Left pattern printed with color paste
P2: Right pattern printed with color paste

Claims (7)

delete As an aesthetic solar module using the moiré phenomenon constituting the exterior wall of a building,
a flat-panel solar cell 20 configured to convert the energy of incident sunlight into electrical energy;
a back sheet 10 positioned on the left side of the solar cell and configured to protect the solar cell from a harsh external environment; and
It is located on the right side of the solar cell, transmits sunlight, constitutes the outer wall of the building, and when the left and right sides are viewed from the side, a glass 30 ′ formed in a form in which a plurality of prism patterns are connected.
A left pattern P1 is printed with a color paste on the upper left side of the prism pattern on the left side of the glass, and a right pattern P2 with color paste is printed on the lower right side of the prism pattern on the right side of the glass. is printed, and the left pattern P1 and the right pattern P2 are offset from each other at a set angle when viewed from the side, and the left pattern and the right pattern are printed to have an angle parallel to the set sunlight incident angle An aesthetic solar module using the moiré phenomenon, whereby sunlight can easily pass between the left pattern and the right pattern, thereby increasing the amount of light received by the solar cell.
3. The method of claim 2,
The left pattern and the right pattern are formed by a printing method using a color paste containing an optical interference pigment, an aesthetic solar module using a moiré phenomenon.
4. The method of claim 3,
The optical interference pigment is produced by coating titanium oxide on mica, an aesthetic solar module using the moiré phenomenon.
3. The method of claim 2,
the glass is
A process of forming a plurality of prism patterns in a continuous form when viewed from the side using UV resin or thermoplastic or thermosetting resin on the left and right sides of the flat glass; and
On the upper left side of the prism pattern on the left side of the glass, the left pattern P1 is formed by using a color paste printing method, and the color paste is applied on the lower right side of the prism pattern on the right side of the glass. Aesthetic solar module using the moiré phenomenon, manufactured by; a process of forming the right pattern (P2) using a printing method.
3. The method of claim 2,
the glass is
preparing a film in which the left pattern P1 is printed with color paste on the upper left side of the plurality of prism patterns when viewed from the side;
A process of preparing a film on which the right-side pattern P2 is printed with color paste on the lower-right side of the plurality of prism patterns when viewed from the side; and
A process of attaching the film on which the left pattern (P1) is printed and the film on which the right pattern (P2) is printed on the left and right sides of the flat glass when viewed from the side in a misaligned way; Aesthetic solar modules.
3. The method of claim 2,
the glass is
etching the left side and the right side of the flat glass to form a plurality of prism patterns in a continuous form when viewed from the side; and
The left side pattern (P1) is printed with color paste on the upper left side of the prism pattern on the left side of the glass, and the right side pattern (P2) with color paste on the lower right side of the prism pattern on the right side of the glass An aesthetic solar module using the moiré phenomenon, manufactured by the process of printing.

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