JPH11261287A - Light power generation type electromagnetic wave shielding glass - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a light power generation type electromagnetic wave shielding glass where both electromagnetic wave shield and light power generation can be effectively realized, for a window where light transparency is most conscious and application to a solar power generator is ignored, when the solar power generator is applied to an electromagnetic wave shield building. SOLUTION: A glass member where a translucent solar battery 2 is arranged on the surface of an electromagnetic wave shielding glass 1 is made integral with a conductive window frame 3. An electrode terminal 5 from a solar battery is arranged on a specified position of the conductive window frame 3. The electromagnetic wave shielding glass 1 and the conductive window frame 3 are light power generation type electromagnetic shielding glasses which are electrically connected, and electromagnetic wave shield of a building and solar power generation are effectively achieved. By capacitor-coupling one pole of the translucent solar battery 2 with the conductive window frame 3, the solar battery is also effectively used as an electromagnetic wave shielding member.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a photovoltaic type electromagnetic wave shielding glass, and more particularly to a photovoltaic type electromagnetic wave shielding glass in which a solar cell is arranged on the surface of the electromagnetic wave shielding glass to simultaneously secure electromagnetic wave shielding and electric energy. About.

[0002]

2. Description of the Related Art In recent years, high-quality information equipment such as OA equipment and personal computers and business-use PH have been developed in response to the information age.
It is required to sufficiently respond to the introduction of information systems using mobile communication devices such as S. As the use of multimedia and the use of wireless systems such as office PHS and wireless LAN spread within offices,
It is required to establish a communication cell of about 20 dB or more at 3 GHz. For this reason, to prevent interference of communication carriers between buildings, it has been considered to use an electromagnetic wave shielding structure for the entire building, or to abolish electric wires to connect information equipment to each other and connect them by radio waves. Have been. Especially,
The biggest problem in making the whole building an electromagnetic wave shielding structure was how to take measures against the openings.However, the inventors succeeded in developing `` electromagnetic wave shielding glass '' through conventional studies. The technology that can establish an electromagnetic wave shield while guiding light into a building has already been completed.

[0003] On the other hand, global environmental problems, in particular, the emission of carbon dioxide promotes global warming, and thermal power generation using petroleum as a raw material, etc., have become a source of acid rain, which has become a social problem. Therefore, it is urgently necessary to create and utilize “clean energy” as much as possible. As clean energy, the use of natural sunlight, wind, waves and geothermal energy has been considered, but among them, semiconductor-based solar power generation is more concise than other energy sources. Attention has been paid to the fact that energy can be extracted.

[0004] Solar cells are installed on a roof of a house or an outer wall of a building to achieve energy saving as a whole.
Investigations on durability are being continued, and amorphous systems and film-type see-through types, which do not cause a significant decrease in efficiency even on cloudy days, have been developed and put into practical use.
However, the placement of solar cells on buildings has traditionally been wall,
It is performed only in the frame part such as the roof, and especially in an electromagnetic shielding building with many windows and few opportunities to open the windows, the state was extremely inefficient when viewed from the surface area of the building.

[0005]

SUMMARY OF THE INVENTION The present invention relates to an electromagnetic wave shield and a photovoltaic power generator for a window that has been excluded from consideration while being most aware of the passage of light when applying a solar power generation device to an electromagnetic wave shield building. It is intended to provide a photovoltaic type electromagnetic wave shielding glass which efficiently combines the above.

[0006]

According to the present invention, a glass member formed by arranging a translucent solar cell on the surface of an electromagnetic wave shielding glass is combined with a conductive window frame, and an electrode terminal from the solar cell is made of a conductive window frame. It is a photovoltaic electromagnetic shielding glass that is placed at a predetermined position of the window frame and the electromagnetic shielding glass and the conductive window frame are electrically connected, and efficiently achieves the electromagnetic shielding and solar power generation of the building. I have. In addition, by connecting one pole of the translucent solar cell to the conductive window frame with a capacitor, the solar cell is effectively used as an electromagnetic wave shielding material, and the electromagnetic wave shielding performance of the building is improved.

[0007]

FIG. 1 is a sectional view of a photovoltaic electromagnetic shielding glass according to the present invention. In the figure, 1,
1 'is an electromagnetic wave shielding glass, 2 is a sheet-like translucent solar cell, and 3 is a conductive window frame. Although the electromagnetic wave shielding glass 1 is basically formed by sputtering a metal film on the surface of the glass as a base, when the application and performance requirements of the electromagnetic wave shielding glass have diversified recently, the metal film is It has been developed from a single type that is simply sputtered on the surface of glass to a composite type in which two pieces of glass are adhered, and a type that has a gap between the two pieces of glass. In the case of the photovoltaic type electromagnetic wave shielding glass according to the present invention, any type of electromagnetic wave shielding glass can be adopted. The electromagnetic wave shielding glass 1 ′ is originally disposed as a protective body for the translucent solar cell 2.
Therefore, in this embodiment, the electromagnetic wave shielding glass is used in order to improve the performance of the electromagnetic wave shielding. However, any material having the same light transmittance and weather resistance as ordinary glass can be used. For example, if an ultraviolet shielding film or the like is used, the durability of the solar cell can be further increased.

The translucent solar cell 2 employs a photovoltaic cell 4 composed of a semiconductor. The photovoltaic cell 4 is composed of two positive and negative electrodes and generates DC power, as is well known. Therefore, in order to form the translucent solar cell 2, the photovoltaic cells 4 are structurally connected to a required number of fine meshes to form a see-through sheet, and each photovoltaic cell 4 is electrically connected. 4
Are connected in series or in parallel to form a desired voltage and capacity. Therefore, the translucent solar cell 2
In order to take out electric power, there are provided terminals 5 of two poles, each of which forms a connection part, and are installed at an arbitrary place of the conductive window frame 3. At this time, it is preferable to use a heat-resistant and fire-resistant cable for the cable 6 (shown in FIG. 2) at the electrode outlet connected to the terminal 5 in consideration of the temperature rise of the conductive window frame 3.

As described above, each of the poles of the translucent solar cell 2 generates power with a predetermined potential as DC power as a power generating device, but the electrode surface of the photovoltaic cell 4 is electrically conductive. Since it is also a body, the same electrode surface connected in series or in parallel can be recognized as a sheet-shaped conductor. Obviously, this sheet-shaped conductor cannot be used in a DC power system,
It has a performance that can be fully utilized as an electrical member of a high-frequency system.

FIG. 2 is a partial sectional view showing a combined state of the glass member 7 and the conductive window frame 3. The glass member 7 includes an electromagnetic wave shielding glass 1 and a sheet-like translucent solar cell 2. The translucent solar cell 2 is electrically interrupted with an insulator 8 so that the sputtered metal applied to the surface of the electromagnetic wave shielding glass and the translucent solar cell 2 do not come into contact with each other and cause an electrical obstacle. In this embodiment, the electromagnetic wave shielding glass 1 ′ is not used as a protective body for the translucent solar cell 2 without using ordinary glass, an ultraviolet shielding film, or the like. Is adopted. Since the electromagnetic wave shielding glass 1 ′ has a metal film sputtered on its surface, an insulator 8 is interposed between the electromagnetic wave shielding glass 1 ′ and the translucent solar cell 2.

The glass member 7 is inserted and installed in the conductive window frame 3 with a glass member installation base 9 interposed therebetween. Between the glass member 7 and the conductive window frame 3, there is a backup material 12,1.
2 was filled and fixed, and the top was sealed with caulking material. In the present embodiment, the indoor side of the glass member 7 is electrically connected and sealed between the electromagnetic wave shielding glass 1 and the conductive window frame 3 using a conductive caulking material 10, and the outside of the glass member 7 is a normal caulk. Sealed with material 11. Since the electrical connection of the electromagnetic wave shielding glass 1 ′ used as the protective body is made to the conductive window frame 3 by a conductor (not shown), the metal film of the electromagnetic wave shielding glass 1, 1 ′ is made of the conductive window frame 3. Through the ground. In addition, in order to electrically connect the electromagnetic wave shielding glass 1 and the conductive window frame 3, in addition to using the above-described conductive caulking material, the backup material 12 is formed of a conductive material.
It can also be performed with a backup material interposed. Also in the above embodiment, it is possible to use the conductive caulking material 10 both indoors and outdoors as the caulking material for the glass member 7.

The photovoltaic type electromagnetic wave shielding glass 1 according to the present invention is generally applied to an opening window of an electromagnetic wave shielding building to shield electromagnetic waves, and at the same time, the solar power is not limited to the main body portion but the entire building including the opening window. It is possible to do with. Electrically, DC power from sunlight is supplied to terminal 5
, And the electromagnetic wave shielding glass 1 is connected to the frame via the conductive window frame 3 and grounded, so that the electromagnetic wave shielding of the building can be completely secured.

In order to reduce the cost of an electromagnetic shielding building, it is urgently necessary to reduce the price of the electromagnetic shielding glass. In the photovoltaic type electromagnetic wave shielding glass according to the present invention, since each pole of the translucent solar cell 2 has a predetermined potential in DC but is recognized as a sheet-like conductor in high frequency as described above. As shown in FIG. 3, a high-frequency circuit is formed by a part of the electrode surface of the solar cell 2 stuck in a mesh shape and a capacitor coupling 13 that is insulated as a direct current and conductive as a high frequency. 2
Can be used as an electric conductor for electromagnetic wave shielding by making a mesh-shaped conductor. Accordingly, when the high-frequency circuit is electrically connected to the conductive window frame 3, the electrode surface of the solar cell 2 is integrated with the electromagnetic wave shielding glass to shield the electromagnetic waves from the building. It is possible to reduce the shielding performance of the glass, which can be developed to reduce the price.

Since the high-frequency circuit using the capacitor coupling 13 shown in FIG. 3 shields electromagnetic waves from outside the building and shields the electronic equipment in the building from malfunctioning, it requires an attenuation performance of 30 dB or more. Has been
High frequency circuit of capacitor connection 13 and coking material 11
It is necessary to make the connection with the conductor sufficiently. But P
In order to construct a wireless LAN system using an HS or a mobile phone, an attenuation performance of 30 dB or more is not required.
It is functionally sufficient if the damping performance is at least dB. FIG.
1 shows an electrical connection between the high-frequency circuit using the capacitor coupling and the conductive window frame 3 when the attenuation performance of 15 dB or more is secured. In this case, the conductive connection line 14 between the high-frequency circuit and the caulking material 11 does not need to be performed sufficiently as in the case of 30 dB, and a predetermined shielding performance can be secured if it is formed conductive.

As described in detail above, the photovoltaic type electromagnetic wave shielding glass according to the present invention utilizes the windows which can be installed in an electromagnetic wave shielding building positively for solar power generation, thereby generating power of the entire building. This improves the electromagnetic wave shielding performance and reduces costs.

[0016]

According to the present invention, a glass member formed by arranging a translucent solar cell on the surface of an electromagnetic wave shielding glass is combined with a conductive window frame, and an electrode terminal from the solar cell is provided on the conductive window frame. Since the electromagnetic wave shielding glass and the conductive window frame are electrically connected to each other, the electromagnetic wave shielding glass is a photovoltaic type electromagnetic wave shielding glass. This has the effect of saving energy. In addition, by connecting one pole of the translucent solar cell with a conductive window frame and a capacitor, the solar cell can be effectively used as an electromagnetic wave shielding material. In addition to energy saving, the electromagnetic wave shielding performance of the building is improved. This also has the effect of reducing construction costs.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of an electromagnetic wave shielding glass according to the present invention.

FIG. 2 is a partial sectional view of an electromagnetic wave shielding glass according to the present invention.

FIG. 3 is a development example of an electromagnetic wave shielding glass according to the present invention.

FIG. 4 shows another development example of the electromagnetic wave shielding glass according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1, 1 'Electromagnetic wave shielding glass 2 Translucent solar cell 3 Conductive window frame 4 Photovoltaic cell 5 Terminal 6 Cable 7 Glass member 8 Insulator 9 Glass member installation stand 10 Conductive caulking material 11 Caulking material 12 Backup material 13 Capacitor Coupling 14 Conductive connection line

Claims (4)

[Claims] 1. A glass member formed by arranging a translucent solar cell on the surface of an electromagnetic wave shielding glass is combined with a conductive window frame, and electrode terminals from the solar cell are arranged at predetermined positions on the conductive window frame. In addition, the electromagnetic wave shielding glass and the conductive window frame are electrically connected to each other. 2. The photovoltaic type electromagnetic wave shielding glass according to claim 1, wherein one pole of the translucent solar cell is coupled to the conductive window frame by a capacitor. 3. The photovoltaic electromagnetic shielding glass according to claim 1, wherein the surface of the translucent solar cell is protected. 4. The photovoltaic electromagnetic shielding glass according to claim 3, wherein the protection is provided by an ultraviolet shielding sheet.