JP2500974Y2 - Laminated glass with built-in intermediate - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of use) The present invention relates to a laminated glass with a built-in intermediate product, in which a panel-shaped intermediate product such as a solar cell is sandwiched between plate glasses via an adhesive sheet.

(Prior Art) As a laminated body such as an automobile sunroof (a transparent plate used as a part of a roof panel), one disclosed in Japanese Utility Model Publication No. 63-126151 is known.

As shown in FIG. 5 (A), this laminate has a structure in which adhesive sheets 102 and 102 are adhered to the respective opposing surfaces of a plastic protective film 100 and a light receiving plate 101, and a solar cell 103 is sandwiched between these adhesive sheets 102 and 102. Has become.

(Problems to be Solved by the Invention) In the above-mentioned laminated body, the substrate of the solar cell 103 is exposed and is easily scratched. Therefore, it is conceivable to wrap the solar cell 103 with the upper and lower adhesive sheets 102, 102 as shown in FIG. 5 (B).

However, in this case, a gap 104 is formed outside the solar cell 103 in a portion surrounded by the upper and lower adhesive sheets 102, 102.

(Means for Solving the Problems) In order to solve the above problems, the present invention sandwiches a panel-shaped intermediate product such as a solar cell between two adhesive sheets and joins two sheet glasses through these adhesive sheets. In the laminated glass, the thickness of the plate glass is 2.1 mm to 4.0 mm, and a sheet piece having a thickness substantially equal to that of the panel-shaped intermediate is sandwiched in a gap formed between the adhesive sheets outside the panel-shaped intermediate. did.

(Operation) For example, a sheet piece obtained by cutting the adhesive sheet into small pieces is sandwiched in the gap formed between the adhesive sheets on the outer side of the panel-shaped intermediate, so that it is difficult to separate from the outer portion of the panel-shaped intermediate.

(Embodiment) An embodiment of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is a sectional view of a laminated glass with a built-in intermediate product according to the present invention, and FIG. 2 is a plan view of a laminated glass with a built-in intermediate product,
FIG. 3 is an enlarged cross-sectional view of a main part of the laminated glass with a built-in intermediate product, and FIG. 4 is a diagram showing a state of the laminated glass with a built-in intermediate product.

The laminated glass 1 is formed by laminating two sheet glasses 2 and 2 on their opposite surfaces with adhesive sheets 3 and 3, and a solar cell 4 is sandwiched between the adhesive sheets 3 and 3. In this solar cell 4, a plurality of elements 4a are electrically connected, and a sheet piece 5 having substantially the same thickness as the solar cell 4 is interposed between the adhesive sheets 3 and 3 on the outer side of the outermost element 4a. There is.

Here, the above-mentioned plate glass 2 is formed by bending so that the bonding surfaces have the same shape, and the inner surface of one of the plate glasses 2 has a portion in which the solar cell 4 is inserted and the other part is not formed. The illustrated ceramic color is printed and fired. Further, instead of the plate glass, a plastic panel such as polycarbonate or a plastic film may be used.

However, if both sides are made of sheet glass, they are advantageous over the other combinations in the following points. That is, since it is a laminated glass, the thickness of one sheet of glass can be set from 4.0 mm to 2.1 mm, the light transmittance is improved, the amount of power generation of the solar cell is increased, and one surface side is a plastic protective sheet. As compared with the case, the scratches are less likely to occur, the light resistance and the chemical resistance are excellent, and the appearance is improved.

As the adhesive sheet 3, polyvinyl butyral (PVB), ethylene vinyl acetate (EVA), etc. are used.
Further, it is preferable to use the same material for the sheet piece 5.

In the above examples, the solar cell panel is shown as an intermediate product, but a light control panel or the like incorporating a liquid crystal or a louver may be sandwiched.

Further, the use of the laminated glass according to the present invention is not limited to the sunroof of an automobile, but may be installed on the roof of a building or the like.

(Effect) As described above, according to the present invention, two sheet glasses are sandwiched between two adhesive sheets so that a panel-shaped intermediate product such as a solar cell or a light control panel is sandwiched between the two adhesive sheets. Upon joining, the thickness of the plate glass was 2.1 mm to 4.0 mm, and a sheet piece having a thickness substantially equal to that of the panel-shaped intermediate was sandwiched in the gap formed between the adhesive sheets on the outside of the panel-shaped intermediate. Therefore, the thickness of the peripheral portion of the laminated glass can be made the same as the thickness of the central portion, and peeling can be prevented because moisture or the like does not easily enter from the outside into the gap, and the laminated glass has a curved shape. If so, wrinkles are likely to occur due to the difference in shrinkage rate, but by interposing the sheet piece, the sheet piece can absorb the difference in shrinkage rate and prevent wrinkles from occurring. In addition, since the light transmittance is improved, the amount of power generated by the solar cell increases, making it less likely to be scratched and light resistance (reduction of deterioration due to ultraviolet rays) and chemical resistance compared to the case where a plastic protective sheet is used on one side. Is excellent and looks good.

[Brief description of drawings]

FIG. 1 is a sectional view of a laminated glass with a built-in intermediate product according to the present invention, FIG. 2 is a plan view of the laminated glass with a built-in intermediate product, and FIG. 3 is an enlarged sectional view of a main part of the laminated glass with a built-in intermediate product. ,
FIG. 4 is a diagram showing a state of the laminated glass with a built-in intermediate product,
FIGS. 5A and 5B are diagrams showing a conventional example. In the drawings, 1 is laminated glass, 2 is plate glass, 3 is an adhesive sheet, 4 is a solar cell, and 5 is a sheet piece.

Claims (1)

(57) [Scope of utility model registration request] 1. A laminated glass obtained by joining two sheet glasses through two adhesive sheets so that a panel-shaped intermediate product such as a solar cell or a light control panel is sandwiched between the two sheet sheets. Thickness of 2.1mm
To 4.0 mm, and a sheet piece having a thickness substantially equal to that of the panel-shaped intermediate is sandwiched in a gap formed between the adhesive sheets on the outside of the panel-shaped intermediate, and a laminated glass with a built-in intermediate characterized in that .