Sunshade sheet

Abstract

To provide a sunshade sheet including solar battery cells usable outdoors.SOLUTION: A sunshade sheet 10 comprises: a flexible sheet-like member 12; a first sealing layer 14 provided on a first surface 12a of the sheet-like member 12; solar battery cells 18 provided on the first sealing layer 14; a second sealing layer 20 provided on the solar battery cells 18; a first coating layer 22 provided on the second sealing layer 20; a third sealing layer 24 provided on a second surface 12b of the sheet-like member 12 which is opposed to the first surface 12a; and a second coating layer 26 provided on the third sealing layer 24.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a sunshade sheet, and more particularly to a sunshade sheet provided with solar cells. [Background technology]

[0002] BACKGROUND ART Conventionally, sunshade sheets equipped with solar cells have been proposed (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2011-179193 Summary of the Invention [Problem to be solved by the invention]

[0004] Conventional sunshade sheets equipped with solar cells were not suitable for permanent outdoor installation, and most were portable solar power generation modules that could be carried around or were intended for indoor use.

[0005] The present disclosure has been made in view of such problems, and its object is to provide a sunshade sheet equipped with solar cells that can be used outdoors as a permanent installation. [Means for solving the problem]

[0006] In order to solve the above problems, a sunshade sheet according to one embodiment of the present invention comprises a flexible sheet-like member, a first sealing layer provided on a first surface of the sheet-like member, a solar cell provided on the first sealing layer, a second sealing layer provided on the solar cell, a first covering layer provided on the second sealing layer, a third sealing layer provided on a second surface opposite the first surface of the sheet-like member, and a second covering layer provided on the third sealing layer. [Brief explanation of the drawings]

[0007] [Figure 1] 1 is a schematic diagram of an independent awning using a sunshade sheet according to an embodiment. [Figure 2] 1 is a schematic cross-sectional view illustrating the layer structure of a sunshade sheet; DETAILED DESCRIPTION OF THE INVENTION

[0008] The present invention will be described below based on preferred embodiments with reference to the drawings. The following configurations are for illustrative purposes only to facilitate understanding of the present disclosure, and the scope of the present disclosure is defined solely by the appended claims. Identical or equivalent components and parts shown in each drawing are designated by the same reference numerals, and redundant explanations will be omitted where appropriate. Furthermore, the dimensions of the components in each drawing are enlarged or reduced as appropriate to facilitate understanding. Furthermore, some components that are not important for explaining the embodiments in each drawing are omitted.

[0009] Fig. 1 shows an independent awning 100 using a sunshade sheet 10 according to an embodiment. The independent awning 100 is installed outdoors. The independent awning 100 shown in Fig. 1 is also called a "pergola-type awning."

[0010] As shown in Figure 1, the independent awning 100 comprises a support pole 102 erected on the ground, a girder frame 104 supported on the upper end of the support pole 102, a plurality of movable frames 106 mounted on the girder frame 104 so as to be movable in the left-right direction, and a flexible sunshade sheet 10 stretched between adjacent movable frames 106. The sunshade sheet 10 can be opened and closed by moving the movable frames 106 along the girder frame 104.

[0011] The layer structure of the sunshade sheet 10 will be described with reference to Fig. 2. The sunshade sheet 10 has a rectangular shape. Fig. 2 shows a cross section of the sunshade sheet 10 perpendicular to the longitudinal direction.

[0012] The sunshade sheet 10 includes a flexible rectangular sheet-like member 12. The sheet-like member 12 is a member that serves as the base of the sunshade sheet 10, and may be, for example, a canvas sheet.

[0013] The sheet-like member 12 has loop portions 13 at both ends in the short direction. The loop portions 13 are formed so that a rod-shaped core material 14 can be inserted therethrough. The loop portions 13 may be formed by folding back the end of the sheet-like member 12 and sewing it. The loop portions 13 through which the core material 14 has been inserted are held by the movable frames 106. The loop portions 13 at both ends of the sunshade sheet 10 are respectively held by the two adjacent movable frames 106, so that the sunshade sheet 10 is stretched between the two movable frames 106 as shown in FIG. 1.

[0014] The sunshade sheet 10 according to this embodiment further includes a first sealing layer 16 provided on a first surface (upper surface) 12a of the sheet-shaped member 12, solar cells 18 provided on the first sealing layer 16, a second sealing layer 20 provided on the solar cells 18, a first covering layer 22 provided on the second sealing layer 20, a third sealing layer 24 provided on a second surface (lower surface) 12b opposite to the first surface 12a of the sheet-shaped member 12, and a second covering layer 26 provided on the third sealing layer 24. As can be seen from Fig. 2, the sunshade sheet 10 has a configuration in which the solar cells 18 and the sheet-shaped member 12 are sandwiched between the first covering layer 22 and the second covering layer 24 via the first sealing layer 16, the second sealing layer 20, and the third sealing layer 24.

[0015] The solar cell 18 utilizes the photovoltaic effect to convert solar energy into electricity. In the sunshade sheet 10, a plurality of solar cell 18 are arranged sandwiched between a first sealing layer 16 and a second sealing layer 20. The plurality of solar cell 18 are electrically connected to each other by a positive electrode ribbon wire 30 and a negative electrode ribbon wire 31, so that a required predetermined voltage can be obtained.

[0016] Thin-film silicon can be used for the solar cell 18, but it is not limited to thin-film silicon and may also be an organic thin film, dye-sensitized, perovskite, CIGS, CIS, or a tandem structure thereof. The solar cell 18 may be translucent or colored. The solar cell 18 may be a single-sided light-receiving type. Furthermore, if a translucent canvas (a light-transmitting material) is used as the sheet-like member 12, the solar cell 18 may be a double-sided light-receiving type.

[0017] First sealing layer 16, second sealing layer 20, and third sealing layer 24 may be made of, for example, lightweight and durable ethylene-vinyl acetate copolymer resin (EVA: Ethylen-Vinyl Acetate), polyvinyl butyral (PVB), ionomer, silicone, etc. First sealing layer 16, second sealing layer 20, and third sealing layer 24 may have a thickness of approximately 150 μm to 300 μm.

[0018] The first coating layer 22 and the second coating layer 26 may be formed of a transparent or semi-transparent resin such as ETFE (Ethylene Tetra Fluoro Ethylene). The thickness of the first coating layer 22 and the second coating layer 26 may be about 25 μm.

[0019] In the sunshade sheet 10 of this embodiment, the sheet-like member 12 and the solar cell 18 are sandwiched between the first coating layer 22 and the second coating layer 26, thereby achieving a sunshade sheet 10 that is highly waterproof and dustproof and can be used outdoors.

[0020] In the sunshade sheet 10 according to this embodiment, as shown in Fig. 2, the sealing layer and the covering layer are not provided on both ends in the short direction of the sheet-like member 12. In other words, the loop portions 13 provided on both ends of the sheet-like member 12 are exposed. In this way, by not covering the loop portions 13 with the sealing layer and the covering layer, it becomes possible to reliably insert the core material 14 into the loop portions 13 without crushing the holes in the loop portions 13.

[0021] The present invention has been described above based on the embodiments. These embodiments are merely examples, and it will be understood by those skilled in the art that various modifications and changes are possible within the scope of the claims of the present invention, and that such modifications and changes also fall within the scope of the claims of the present invention. Therefore, the descriptions and drawings in this specification should be treated as illustrative rather than restrictive. [Explanation of symbols]

[0022] 10 Sunshade sheet, 12 Sheet-like member, 13 Loop portion, 14 Core material, 16 First sealing layer, 18 Solar cell, 20 Second sealing layer, 22 First covering layer, 24 Third sealing layer, 26 Second covering layer, 100 Independent awning, 104 Girder frame, 106 Movable frame.

Claims

1. a flexible sheet-like member; a first sealing layer provided on a first surface of the sheet-like member; a solar cell provided on the first encapsulation layer; a second encapsulation layer provided on the solar cell; a first coating layer provided on the second sealing layer; a third sealing layer provided on a second surface of the sheet-like member opposite to the first surface; a second coating layer provided on the third sealing layer; A sunshade sheet equipped with

2. The sunshade sheet according to claim 1, wherein the solar cell and the sheet-like member are sandwiched between the first covering layer and the second covering layer via the first sealing layer, the second sealing layer, and the third sealing layer.

3. a loop portion formed so that a core material can be inserted therethrough is provided at an end of the sheet-like member; The sunshade sheet according to claim 1 or 2, wherein the loop portion is exposed.

4. The sunshade sheet according to claim 1 or 2, wherein the first coating layer and the second coating layer are formed of an ETFE film.

5. 3. The sunshade sheet according to claim 1, wherein the sheet-like member is a canvas sheet.

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