JPH1154781A - Laminated glass for sealing solar battery - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent an amorphous solar battery from giving adverse influence on the appearance of the interior of a room by incorporating the solar battery between glass plates and bonding output terminals connected to the solar battery to a spacer after the output terminals are led out to the outside of the glass plates. SOLUTION: A solar battery 8 coated with amorphous silicon formed on a base plate is stuck to glass plate 2. The battery 8 is constituted on the glass plate 2 and connected to a connecting terminal 9 and the starting and terminating ends of the battery 8 are respectively connected to output terminals 10 which are connected to a terminal box 14. Then a spacer 4 is stuck to the solar battery forming surface of the glass plate 2. The output terminals 10 are wired along the side section of the intermediate layer of the spacer 4 and lead out to the outside of the intermediate layer from the space between the glass plate 2 and spacer 4 at extended spots 11. The spacer 4 constitutes laminates glass 1 by bonding glass plate 3 to the glass plate 2 in a facing state. Therefore, the solar battery 8 is prevented from giving adverse influences to the pretty view of the interior of a room.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a double-glazing unit in which a solar cell is installed in an air space and is configured as a solar cell module.

[0002]

2. Description of the Related Art Solar cells that convert solar energy, which is a non-polluting and semi-permanent resource, into electric energy are used in street lamps and houses, and require a large area to collect solar energy. Installed on the roof or ground of a building.

In an office building or the like, in view of the fact that the window glass occupies a large area of the building, and the fact that double-glazing is frequently used because of such reasons as securing the strength of the window glass, the double-glazing is considered. Practical use of a window glass provided with a solar cell in a layered glass is in progress.

[0004]

SUMMARY OF THE INVENTION In the case where a multilayer glass is formed as a solar cell module, an intermediate layer in the multilayer glass must be used in order to exhibit the properties of the multilayer glass such as heat insulation and sound insulation. It is important to maintain a sealed state, but when a solar cell is provided in the intermediate layer, the output terminal must be connected to an external battery, etc. Occurs.

[0005] In addition, since the window glass greatly affects the aesthetics of the room, the output terminals wired in the multi-layer glass when the solar cell is installed in the multi-layer glass do not adversely affect the aesthetics of the room. It is necessary to take care.

[0006]

Means for Solving the Problems A double glazing (1) comprising an intermediate layer (7) formed by interposing a spacer (4) between two glass sheets (2, 3). In the two glass sheets (2, 3), an amorphous solar cell (8) using glass as a substrate is incorporated into the intermediate layer (7) of one glass sheet (2), and the solar cell (8) Output terminal connected to
(10) is wired to a predetermined extension point (11) along the surface of the intermediate layer (7) on the spacer (4), and the extension point (11)
In the output terminal (10), before bonding between the glass sheet (2) and the spacer (4) at the time of forming the multilayer glass (1), the multilayer glass (1) It extends outside and the primary sealing (1) of the plate glass (2) and the spacer (4)
2) A solar cell-enclosed double glazing (1) is formed by bonding the output terminal (10) at the time.

[0007] By configuring as described above, even when the multi-layer glass (1) is configured as a solar cell module,
The output terminals (10) wired to the intermediate layer (7) do not adversely affect the aesthetics of the room.

[0008] In addition to the structure of the solar cell-enclosed double glass (1), an output terminal (10) extended from an extension portion (11) of the double glass (1) is connected to an external cable (13). A terminal box (14) for connection, and at the time of secondary sealing (16) of the outer peripheral end face (15) of the multilayer glass (1) at the time of forming the multilayer glass (1), the terminal box (14) ) Is adhered to the outer peripheral end surface (15) of the double-glazed glass (1) with a secondary sealing agent to constitute a solar cell-enclosed double-glazed glass (1).

With the above-described configuration, the terminal box (14) can be integrally attached in the process of forming the solar cell double glazing (1) according to the present invention. Insulated glass (1)
Can be configured.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION The construction for implementing a solar cell-enclosed double glazing (1) according to the present invention will be outlined below.

[0011] The amorphous silicon film is made of glass,
A solar cell (8) formed on a base made of transparent resin
Adhere on the surface of (2). Alternatively, by forming an amorphous silicon film on the glass sheet (2),
(2) A solar cell based on itself may be configured. Solar cell configurations using compound semiconductors, monocrystalline or polycrystalline crystalline silicon, etc., have been developed. In particular, solar cells based on so-called compound thin film semiconductors using amorphous silicon have been technically developed. It is accepted because it is simple.

The solar cells (8) are formed in a stripe shape on the surface of the glass sheet (2), and the respective solar cells (8) are connected by connection terminals (9), and a series of connected solar cells (8) are connected. ) Are connected to an output terminal (10) at the beginning and the end, respectively, and the output terminal (10) is connected to a terminal box (14) (FIG. 1). The reason why the solar cell (8) is formed in a stripe shape is to ensure the transparency of the window glass.

The output terminal (10) is for supplying electric power obtained from the solar cell to an external battery or other equipment. The output terminal (10) is a flat conductor, and the surface is covered with an insulating film.

Sheet glass comprising solar cell as described above
A spacer (4) is bonded to the outer periphery of the solar cell forming surface of (2).
At this time, the output terminal (10) is wired along the side of the intermediate layer (7) of the spacer (4), and from a position between the plate glass (2) and the spacer (4) at a predetermined extension point (11). It extends outside the middle layer (7). Due to the wiring of the output terminal (10), a slit (6) formed substantially in the middle of the spacer (4) in the thickness direction as described later.
The width of the output terminal (10) is
Make the width of (7) approximately half (FIG. 2). In this state the sheet glass
(2) and the spacer (4) are bonded using a butyl adhesive or the like.

Further, another glass sheet (3) is adhered to the spacer (4) so as to face the glass sheet (2) to form an intermediate layer (7).
To form a double glazing (1) having

With the above structure, in the step of sealing the outer periphery of the double-glazed glass (primary sealing), the sealing is performed with the sealing agent including the output terminal (10) which has been extended in advance. To form a double-glazed glass with the terminal (10) extended, a double-glazed glass (1) capable of wiring and extending the solar cell without impairing the sealed state of the intermediate layer (7) is configured. be able to. The output terminal (10) is the intermediate layer of the spacer (4).
Since the wiring is provided along the (7) side, it can be said that even if the double-glazed glass (1) according to the present invention is used for a window, there is almost no adverse effect on the aesthetic appearance in the room.

The spacer (4) is a hollow frame, and a desiccant (5) is contained in the spacer (4).
A slit (6) is formed on the surface on the (7) side to keep the intermediate layer (7) dry.

The output terminal (1) extended from the double-glazed glass (1)
0) is connected to the terminal box (14).
Connect to the external cable (13) of the battery or other equipment via 4). That is, the terminal box (14) serves as a connector for the output terminal (10) and the external cable (13). This is for convenience when installing and using the double-glazed glass constituting the present invention as a window glass. The terminal box (14) may be configured as a socket.

After the primary sealing (12) between the spacer (4) and the sheet glass (2, 3) as described above, the outer peripheral end face (1
5) is further subjected to secondary sealing (16). This is for strengthening the adhesion between the glass sheets (2, 3) and for sealing the intermediate layer (7). Primary sealing (1
The double-glazed glass (1) after (2) is primarily sealed (12) with a spacer (4) interposed, leaving a small amount of the outer peripheral edge of the sheet glass (2, 3). The outer peripheral end face (15) of the double-glazed glass (1) after the above has a concave cross section. The secondary sealing material, such as silicon and polysulfide, is embedded and sealed in the groove formed on the outer peripheral end face (15) of the double-glazed glass (1) configured as described above.
The outer peripheral end face (15) of the double-glazed glass (1) thus formed is
It is almost flat.

At the time of such secondary sealing, the terminal box (14) is bonded to the outer peripheral end surface (15) of the double-glazing (1) using a secondary sealing agent. That is, the terminal box (14) is fixed to the secondary sealing portion (16). With such a configuration, the double-glazed glass (1) enclosing the solar cell can be unitized, and a configuration more suitable for practical use can be obtained.

[0021]

According to the present invention, when a multilayer glass is formed as a solar cell module, the output terminal is connected to an external battery or other device while maintaining the sealed state of the intermediate layer in the multilayer glass. Can be connected, so that the properties of the double glazing such as heat insulation and sound insulation are not impaired. Also, since the output terminals are wired along the spacers, there is no adverse effect on the aesthetics of the room. Furthermore, a solar cell module as a unit more suitable for implementation can be configured.

[Brief description of the drawings]

FIG. 1 is a front view of a double glazing according to the present invention.

FIG. 2 is a partial cross-sectional view of a double glazing according to the present invention.

FIG. 3 is a partially enlarged view showing an output terminal of the double-glazed glass according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Double glass 2 Sheet glass 3 Other sheet glass 4 Spacer 5 Desiccant 6 Slit 7 Intermediate layer 8 Solar cell 9 Connection terminal 10 Output terminal 11 Extension place 12 Primary sealing 13 External output cable 14 Terminal box 15 Peripheral end face 16 Secondary Sealing

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor: Shinyuki Tsujino 2-5-5-Keihanhondori, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd. (72) Inventor: Hiroshi Inoue 2-chome, Keihanhondori, Moriguchi-shi, Osaka No. 5-5 Sanyo Electric Co., Ltd. (72) Inventor Yuichi Yamamoto 2-6-15 Shiba Park, Minato-ku, Tokyo Inside Figra Corporation (72) Inventor Kazumi Saito 2-6-Shiba Park, Minato-ku, Tokyo No. 15 Inside Figura Co., Ltd.

Claims (2)

[Claims] 1. A double-layer glass comprising an intermediate layer formed by interposing a spacer between two glass sheets, wherein a glass is provided on the intermediate layer side of one of the two glass sheets. An amorphous solar cell as a substrate is incorporated and configured, and an output terminal connected to the solar cell is wired to a predetermined extension along the surface of the spacer on the side of the intermediate layer. In, the output terminal, before bonding between the glass plate and the spacer at the time of forming the double-glazed glass, previously extended out of the double-glazed from between the plate glass and the spacer,
A solar cell-enclosed double-layer glass that is formed by bonding the output terminals during the primary sealing of the plate glass and the spacer. 2. A terminal box for connecting an output terminal extended from an extended portion of the double-glazed glass to an external cable, and a secondary box for sealing an outer peripheral end face of the double-glazed glass at the time of forming the double-glazed glass. 2. The method according to claim 1, wherein the terminal box is formed by bonding the terminal box to an outer peripheral end face of the double-layer glass with a secondary sealing agent.
Double-glazed solar cells.